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 */ + \ 2947d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 2957d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 2967d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 2977d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 2987d2ed9acSWeston Andros Adamson 3 /* nii_date */) 299fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 300fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 301fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 302fc931582SAndy Adamson 1 /* ca_rdma_ird */) 303fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 304fc931582SAndy Adamson 2 /* csa_clientid */ + \ 305fc931582SAndy Adamson 1 /* csa_sequence */ + \ 306fc931582SAndy Adamson 1 /* csa_flags */ + \ 307fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 308fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 309fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 310fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 311fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 312fc931582SAndy Adamson 1 /* stamp */ + \ 313fc931582SAndy Adamson 1 /* machinename.len */ + \ 314fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 315fc931582SAndy Adamson 1 /* uid */ + \ 316fc931582SAndy Adamson 1 /* gid */ + \ 317fc931582SAndy Adamson 1 /* gids.len (0) */) 318fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 319fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 320fc931582SAndy Adamson 1 /* csr_sequence */ + \ 321fc931582SAndy Adamson 1 /* csr_flags */ + \ 322fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 323fc931582SAndy Adamson decode_channel_attrs_maxsz) 3240f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3250f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 326fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 327fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 328fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 329fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 33018019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 33118019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3327f11d8d3SAndy Adamson #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ 3337f11d8d3SAndy Adamson encode_verifier_maxsz) 3347f11d8d3SAndy Adamson #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ 3357f11d8d3SAndy Adamson 2 /* nfs_cookie4 gdlr_cookie */ + \ 3367f11d8d3SAndy Adamson decode_verifier_maxsz \ 3377f11d8d3SAndy Adamson /* verifier4 gdlr_verifier */ + \ 3387f11d8d3SAndy Adamson 1 /* gdlr_deviceid_list count */ + \ 3397f11d8d3SAndy Adamson XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ 3407f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE) \ 3417f11d8d3SAndy Adamson /* gdlr_deviceid_list */ + \ 3427f11d8d3SAndy Adamson 1 /* bool gdlr_eof */) 343b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 344b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 345b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 346b1f69b75SAndy Adamson 1 /* layout type */ + \ 347b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 348b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 349b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 350b1f69b75SAndy Adamson 1 /* notification bitmap */) 351b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 352b1f69b75SAndy Adamson encode_stateid_maxsz) 353b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 354b1f69b75SAndy Adamson decode_stateid_maxsz + \ 355b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 356863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 357863a3c6cSAndy Adamson 2 /* offset */ + \ 358863a3c6cSAndy Adamson 2 /* length */ + \ 359863a3c6cSAndy Adamson 1 /* reclaim */ + \ 360863a3c6cSAndy Adamson encode_stateid_maxsz + \ 361863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 362863a3c6cSAndy Adamson 2 /* last byte written */ + \ 363863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 364863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 365863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 366863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 367cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 368cbe82603SBenny Halevy encode_stateid_maxsz + \ 369cbe82603SBenny Halevy 1 /* FIXME: opaque lrf_body always empty at the moment */) 370cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 371cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 372fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 373fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 3747d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 3757d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3767d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 3779aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 3789aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3799aeda35fSBryan Schumaker #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1) 3809b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3819b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3829b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3839b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3849b7b9fccSAndy Adamson 3851da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3861da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3871da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3889b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3891da177e4SLinus Torvalds encode_putfh_maxsz + \ 3909104a55dSTrond Myklebust encode_read_maxsz) 3911da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3929b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3931da177e4SLinus Torvalds decode_putfh_maxsz + \ 3949104a55dSTrond Myklebust decode_read_maxsz) 3951da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3969b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3971da177e4SLinus Torvalds encode_putfh_maxsz + \ 3989104a55dSTrond Myklebust encode_readlink_maxsz) 3991da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4009b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4011da177e4SLinus Torvalds decode_putfh_maxsz + \ 4029104a55dSTrond Myklebust decode_readlink_maxsz) 4031da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4049b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4051da177e4SLinus Torvalds encode_putfh_maxsz + \ 4069104a55dSTrond Myklebust encode_readdir_maxsz) 4071da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4091da177e4SLinus Torvalds decode_putfh_maxsz + \ 4109104a55dSTrond Myklebust decode_readdir_maxsz) 4111da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4129b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4131da177e4SLinus Torvalds encode_putfh_maxsz + \ 4149104a55dSTrond Myklebust encode_write_maxsz + \ 4154f9838c7STrond Myklebust encode_getattr_maxsz) 4161da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4181da177e4SLinus Torvalds decode_putfh_maxsz + \ 4199104a55dSTrond Myklebust decode_write_maxsz + \ 4204f9838c7STrond Myklebust decode_getattr_maxsz) 4211da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4231da177e4SLinus Torvalds encode_putfh_maxsz + \ 4249104a55dSTrond Myklebust encode_commit_maxsz + \ 4254f9838c7STrond Myklebust encode_getattr_maxsz) 4261da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4281da177e4SLinus Torvalds decode_putfh_maxsz + \ 4299104a55dSTrond Myklebust decode_commit_maxsz + \ 4304f9838c7STrond Myklebust decode_getattr_maxsz) 4311da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4329b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4331da177e4SLinus Torvalds encode_putfh_maxsz + \ 4342cebf828STrond Myklebust encode_savefh_maxsz + \ 4352cebf828STrond Myklebust encode_open_maxsz + \ 4362cebf828STrond Myklebust encode_getfh_maxsz + \ 4371da177e4SLinus Torvalds encode_getattr_maxsz + \ 4382cebf828STrond Myklebust encode_restorefh_maxsz + \ 4392cebf828STrond Myklebust encode_getattr_maxsz) 4401da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4419b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4421da177e4SLinus Torvalds decode_putfh_maxsz + \ 4432cebf828STrond Myklebust decode_savefh_maxsz + \ 4442cebf828STrond Myklebust decode_open_maxsz + \ 4452cebf828STrond Myklebust decode_getfh_maxsz + \ 4461da177e4SLinus Torvalds decode_getattr_maxsz + \ 4472cebf828STrond Myklebust decode_restorefh_maxsz + \ 4482cebf828STrond Myklebust decode_getattr_maxsz) 4491da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4501da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4511da177e4SLinus Torvalds encode_putfh_maxsz + \ 4529104a55dSTrond Myklebust encode_open_confirm_maxsz) 4539104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4549104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4551da177e4SLinus Torvalds decode_putfh_maxsz + \ 4569104a55dSTrond Myklebust decode_open_confirm_maxsz) 4571da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4589b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4591da177e4SLinus Torvalds encode_putfh_maxsz + \ 4602cebf828STrond Myklebust encode_open_maxsz + \ 4612cebf828STrond Myklebust encode_getattr_maxsz) 4621da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4641da177e4SLinus Torvalds decode_putfh_maxsz + \ 4652cebf828STrond Myklebust decode_open_maxsz + \ 4662cebf828STrond Myklebust decode_getattr_maxsz) 4671da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4681da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4701da177e4SLinus Torvalds encode_putfh_maxsz + \ 4719104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 472516a6af6STrond Myklebust encode_getattr_maxsz) 4731da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4741da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4759b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4761da177e4SLinus Torvalds decode_putfh_maxsz + \ 4779104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 478516a6af6STrond Myklebust decode_getattr_maxsz) 4791da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4809b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4811da177e4SLinus Torvalds encode_putfh_maxsz + \ 4829104a55dSTrond Myklebust encode_close_maxsz + \ 483516a6af6STrond Myklebust encode_getattr_maxsz) 4841da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4859b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4861da177e4SLinus Torvalds decode_putfh_maxsz + \ 4879104a55dSTrond Myklebust decode_close_maxsz + \ 488516a6af6STrond Myklebust decode_getattr_maxsz) 4891da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4909b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4911da177e4SLinus Torvalds encode_putfh_maxsz + \ 4929104a55dSTrond Myklebust encode_setattr_maxsz + \ 4931da177e4SLinus Torvalds encode_getattr_maxsz) 4941da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4959b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4961da177e4SLinus Torvalds decode_putfh_maxsz + \ 4979104a55dSTrond Myklebust decode_setattr_maxsz + \ 4989104a55dSTrond Myklebust decode_getattr_maxsz) 4991da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5009b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5011da177e4SLinus Torvalds encode_putfh_maxsz + \ 5021da177e4SLinus Torvalds encode_fsinfo_maxsz) 5031da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5051da177e4SLinus Torvalds decode_putfh_maxsz + \ 5061da177e4SLinus Torvalds decode_fsinfo_maxsz) 5071da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5081da177e4SLinus Torvalds encode_renew_maxsz) 5091da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5101da177e4SLinus Torvalds decode_renew_maxsz) 5111da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5121da177e4SLinus Torvalds encode_setclientid_maxsz) 5131da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5141da177e4SLinus Torvalds decode_setclientid_maxsz) 5151da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5161da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5171da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 5181da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5191da177e4SLinus Torvalds encode_fsinfo_maxsz) 5201da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5211da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5221da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 5231da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5241da177e4SLinus Torvalds decode_fsinfo_maxsz) 5251da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5269b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5271da177e4SLinus Torvalds encode_putfh_maxsz + \ 5289104a55dSTrond Myklebust encode_lock_maxsz) 5291da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5309b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5311da177e4SLinus Torvalds decode_putfh_maxsz + \ 5329104a55dSTrond Myklebust decode_lock_maxsz) 5331da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5349b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5351da177e4SLinus Torvalds encode_putfh_maxsz + \ 5369104a55dSTrond Myklebust encode_lockt_maxsz) 5379104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5389b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5399104a55dSTrond Myklebust decode_putfh_maxsz + \ 5409104a55dSTrond Myklebust decode_lockt_maxsz) 5411da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5429b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5431da177e4SLinus Torvalds encode_putfh_maxsz + \ 5449104a55dSTrond Myklebust encode_locku_maxsz) 5451da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5469b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5471da177e4SLinus Torvalds decode_putfh_maxsz + \ 5489104a55dSTrond Myklebust decode_locku_maxsz) 549d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 550d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 551d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 552d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 553d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 554d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5551da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5569b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5571da177e4SLinus Torvalds encode_putfh_maxsz + \ 55876b32999STrond Myklebust encode_access_maxsz + \ 55976b32999STrond Myklebust encode_getattr_maxsz) 5601da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5621da177e4SLinus Torvalds decode_putfh_maxsz + \ 56376b32999STrond Myklebust decode_access_maxsz + \ 56476b32999STrond Myklebust decode_getattr_maxsz) 5651da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5669b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5671da177e4SLinus Torvalds encode_putfh_maxsz + \ 5681da177e4SLinus Torvalds encode_getattr_maxsz) 5691da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5709b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5711da177e4SLinus Torvalds decode_putfh_maxsz + \ 5721da177e4SLinus Torvalds decode_getattr_maxsz) 5731da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5749b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5751da177e4SLinus Torvalds encode_putfh_maxsz + \ 5761da177e4SLinus Torvalds encode_lookup_maxsz + \ 5771da177e4SLinus Torvalds encode_getattr_maxsz + \ 5781da177e4SLinus Torvalds encode_getfh_maxsz) 5791da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5811da177e4SLinus Torvalds decode_putfh_maxsz + \ 582e6889620STrond Myklebust decode_lookup_maxsz + \ 5831da177e4SLinus Torvalds decode_getattr_maxsz + \ 5841da177e4SLinus Torvalds decode_getfh_maxsz) 5851da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5869b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5871da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5881da177e4SLinus Torvalds encode_getattr_maxsz + \ 5891da177e4SLinus Torvalds encode_getfh_maxsz) 5901da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5921da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5931da177e4SLinus Torvalds decode_getattr_maxsz + \ 5941da177e4SLinus Torvalds decode_getfh_maxsz) 5951da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5969b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5971da177e4SLinus Torvalds encode_putfh_maxsz + \ 59816e42959STrond Myklebust encode_remove_maxsz + \ 59916e42959STrond Myklebust encode_getattr_maxsz) 6001da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6019b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6021da177e4SLinus Torvalds decode_putfh_maxsz + \ 6036ce18391SBenny Halevy decode_remove_maxsz + \ 60416e42959STrond Myklebust decode_getattr_maxsz) 6051da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6069b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6071da177e4SLinus Torvalds encode_putfh_maxsz + \ 6081da177e4SLinus Torvalds encode_savefh_maxsz + \ 6091da177e4SLinus Torvalds encode_putfh_maxsz + \ 6106caf2c82STrond Myklebust encode_rename_maxsz + \ 6116caf2c82STrond Myklebust encode_getattr_maxsz + \ 6126caf2c82STrond Myklebust encode_restorefh_maxsz + \ 6136caf2c82STrond Myklebust encode_getattr_maxsz) 6141da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6159b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6161da177e4SLinus Torvalds decode_putfh_maxsz + \ 6171da177e4SLinus Torvalds decode_savefh_maxsz + \ 6181da177e4SLinus Torvalds decode_putfh_maxsz + \ 6196caf2c82STrond Myklebust decode_rename_maxsz + \ 6206caf2c82STrond Myklebust decode_getattr_maxsz + \ 6216caf2c82STrond Myklebust decode_restorefh_maxsz + \ 6226caf2c82STrond Myklebust decode_getattr_maxsz) 6231da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6249b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6251da177e4SLinus Torvalds encode_putfh_maxsz + \ 6261da177e4SLinus Torvalds encode_savefh_maxsz + \ 6271da177e4SLinus Torvalds encode_putfh_maxsz + \ 62891ba2eeeSTrond Myklebust encode_link_maxsz + \ 62991ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 63091ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 63191ba2eeeSTrond Myklebust decode_getattr_maxsz) 6321da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6339b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6341da177e4SLinus Torvalds decode_putfh_maxsz + \ 6351da177e4SLinus Torvalds decode_savefh_maxsz + \ 6361da177e4SLinus Torvalds decode_putfh_maxsz + \ 63791ba2eeeSTrond Myklebust decode_link_maxsz + \ 63891ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 63991ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 64091ba2eeeSTrond Myklebust decode_getattr_maxsz) 6411da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6429b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6431da177e4SLinus Torvalds encode_putfh_maxsz + \ 6441da177e4SLinus Torvalds encode_symlink_maxsz + \ 6451da177e4SLinus Torvalds encode_getattr_maxsz + \ 6461da177e4SLinus Torvalds encode_getfh_maxsz) 6471da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6491da177e4SLinus Torvalds decode_putfh_maxsz + \ 6501da177e4SLinus Torvalds decode_symlink_maxsz + \ 6511da177e4SLinus Torvalds decode_getattr_maxsz + \ 6521da177e4SLinus Torvalds decode_getfh_maxsz) 6531da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6549b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6551da177e4SLinus Torvalds encode_putfh_maxsz + \ 65656ae19f3STrond Myklebust encode_savefh_maxsz + \ 6571da177e4SLinus Torvalds encode_create_maxsz + \ 65856ae19f3STrond Myklebust encode_getfh_maxsz + \ 6591da177e4SLinus Torvalds encode_getattr_maxsz + \ 66056ae19f3STrond Myklebust encode_restorefh_maxsz + \ 66156ae19f3STrond Myklebust encode_getattr_maxsz) 6621da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6641da177e4SLinus Torvalds decode_putfh_maxsz + \ 66556ae19f3STrond Myklebust decode_savefh_maxsz + \ 6661da177e4SLinus Torvalds decode_create_maxsz + \ 66756ae19f3STrond Myklebust decode_getfh_maxsz + \ 6681da177e4SLinus Torvalds decode_getattr_maxsz + \ 66956ae19f3STrond Myklebust decode_restorefh_maxsz + \ 67056ae19f3STrond Myklebust decode_getattr_maxsz) 6711da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6729b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6731da177e4SLinus Torvalds encode_putfh_maxsz + \ 6741da177e4SLinus Torvalds encode_getattr_maxsz) 6751da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6769b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6771da177e4SLinus Torvalds decode_putfh_maxsz + \ 6781da177e4SLinus Torvalds decode_getattr_maxsz) 6791da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6809b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6811da177e4SLinus Torvalds encode_putfh_maxsz + \ 6829104a55dSTrond Myklebust encode_statfs_maxsz) 6831da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6849b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6851da177e4SLinus Torvalds decode_putfh_maxsz + \ 6869104a55dSTrond Myklebust decode_statfs_maxsz) 6871da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6889b7b9fccSAndy Adamson encode_sequence_maxsz + \ 689ab91f264STrond Myklebust encode_putfh_maxsz + \ 6901da177e4SLinus Torvalds encode_getattr_maxsz) 6911da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6929b7b9fccSAndy Adamson decode_sequence_maxsz + \ 693ab91f264STrond Myklebust decode_putfh_maxsz + \ 6941da177e4SLinus Torvalds decode_getattr_maxsz) 6951da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6969b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6971da177e4SLinus Torvalds encode_putfh_maxsz + \ 698fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 699fa178f29STrond Myklebust encode_getattr_maxsz) 7001da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7019b7b9fccSAndy Adamson decode_sequence_maxsz + \ 702fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 703fa178f29STrond Myklebust decode_getattr_maxsz) 704029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 706029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7079104a55dSTrond Myklebust encode_getacl_maxsz) 708029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 710029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7119104a55dSTrond Myklebust decode_getacl_maxsz) 71223ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 71423ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7159104a55dSTrond Myklebust encode_setacl_maxsz) 71623ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 71823ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7199104a55dSTrond Myklebust decode_setacl_maxsz) 720683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 721683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 723683b57b4STrond Myklebust encode_putfh_maxsz + \ 724e6889620STrond Myklebust encode_lookup_maxsz + \ 725e6889620STrond Myklebust encode_fs_locations_maxsz) 726683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 727683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7289b7b9fccSAndy Adamson decode_sequence_maxsz + \ 729683b57b4STrond Myklebust decode_putfh_maxsz + \ 730e6889620STrond Myklebust decode_lookup_maxsz + \ 731e6889620STrond Myklebust decode_fs_locations_maxsz) 7325a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7335a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7345a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7355a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7365a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7375a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7385a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7395a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 74099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 74199fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 74299fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 74399fe60d0SBenny Halevy encode_exchange_id_maxsz) 74499fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 74599fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 74699fe60d0SBenny Halevy decode_exchange_id_maxsz) 747fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 748fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 749fc931582SAndy Adamson encode_create_session_maxsz) 750fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 751fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 752fc931582SAndy Adamson decode_create_session_maxsz) 7530f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7540f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7550f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7560f3e66c6SAndy Adamson decode_destroy_session_maxsz) 757fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 758fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 759fc01cea9SAndy Adamson encode_sequence_maxsz) 760fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 761fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 762fc01cea9SAndy Adamson decode_sequence_maxsz) 7632050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7642050f0ccSAndy Adamson encode_sequence_maxsz + \ 7652050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7662050f0ccSAndy Adamson encode_fsinfo_maxsz) 7672050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7682050f0ccSAndy Adamson decode_sequence_maxsz + \ 7692050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7702050f0ccSAndy Adamson decode_fsinfo_maxsz) 77118019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 77218019753SRicardo Labiaga encode_sequence_maxsz + \ 77318019753SRicardo Labiaga encode_reclaim_complete_maxsz) 77418019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 77518019753SRicardo Labiaga decode_sequence_maxsz + \ 77618019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7777f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 7787f11d8d3SAndy Adamson encode_sequence_maxsz + \ 7797f11d8d3SAndy Adamson encode_putfh_maxsz + \ 7807f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 7817f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 7827f11d8d3SAndy Adamson decode_sequence_maxsz + \ 7837f11d8d3SAndy Adamson decode_putfh_maxsz + \ 7847f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 785b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 786b1f69b75SAndy Adamson encode_sequence_maxsz +\ 787b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 788b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 789b1f69b75SAndy Adamson decode_sequence_maxsz + \ 790b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 791b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 792b1f69b75SAndy Adamson encode_sequence_maxsz + \ 793b1f69b75SAndy Adamson encode_putfh_maxsz + \ 794b1f69b75SAndy Adamson encode_layoutget_maxsz) 795b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 796b1f69b75SAndy Adamson decode_sequence_maxsz + \ 797b1f69b75SAndy Adamson decode_putfh_maxsz + \ 798b1f69b75SAndy Adamson decode_layoutget_maxsz) 799863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 800863a3c6cSAndy Adamson encode_sequence_maxsz +\ 801863a3c6cSAndy Adamson encode_putfh_maxsz + \ 802863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 803863a3c6cSAndy Adamson encode_getattr_maxsz) 804863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 805863a3c6cSAndy Adamson decode_sequence_maxsz + \ 806863a3c6cSAndy Adamson decode_putfh_maxsz + \ 807863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 808863a3c6cSAndy Adamson decode_getattr_maxsz) 809cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 810cbe82603SBenny Halevy encode_sequence_maxsz + \ 811cbe82603SBenny Halevy encode_putfh_maxsz + \ 812cbe82603SBenny Halevy encode_layoutreturn_maxsz) 813cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 814cbe82603SBenny Halevy decode_sequence_maxsz + \ 815cbe82603SBenny Halevy decode_putfh_maxsz + \ 816cbe82603SBenny Halevy decode_layoutreturn_maxsz) 817fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 818fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 819fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 820fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 821fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 822fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 823fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 824fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8257d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8267d974794SBryan Schumaker encode_sequence_maxsz + \ 8277d974794SBryan Schumaker encode_test_stateid_maxsz) 8287d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8297d974794SBryan Schumaker decode_sequence_maxsz + \ 8307d974794SBryan Schumaker decode_test_stateid_maxsz) 8319aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8329aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8339aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8349aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8359aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8369aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8372449ea2eSAlexandros Batsakis 8382449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8392449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8402449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8412449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8422449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8432449ea2eSAlexandros Batsakis XDR_UNIT); 8442449ea2eSAlexandros Batsakis 8452449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8462449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8472449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8482449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8492449ea2eSAlexandros Batsakis XDR_UNIT); 85099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8511da177e4SLinus Torvalds 852db8ac8baSWeston Andros Adamson static unsigned short send_implementation_id = 1; 853db8ac8baSWeston Andros Adamson 854db8ac8baSWeston Andros Adamson module_param(send_implementation_id, ushort, 0644); 855db8ac8baSWeston Andros Adamson MODULE_PARM_DESC(send_implementation_id, 856db8ac8baSWeston Andros Adamson "Send implementation ID with NFSv4.1 exchange_id"); 857db8ac8baSWeston Andros Adamson 858bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 859bca79478STrond Myklebust [NF4BAD] = 0, 860bca79478STrond Myklebust [NF4REG] = S_IFREG, 861bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 862bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 863bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 864bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 865bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 866bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 867bca79478STrond Myklebust [NF4ATTRDIR] = 0, 868bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8691da177e4SLinus Torvalds }; 8701da177e4SLinus Torvalds 8711da177e4SLinus Torvalds struct compound_hdr { 8721da177e4SLinus Torvalds int32_t status; 8731da177e4SLinus Torvalds uint32_t nops; 874d017931cSAndy Adamson __be32 * nops_p; 8751da177e4SLinus Torvalds uint32_t taglen; 8761da177e4SLinus Torvalds char * tag; 8770c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 87866cc0429SBenny Halevy u32 minorversion; 8791da177e4SLinus Torvalds }; 8801da177e4SLinus Torvalds 88113c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 88213c65ce9SBenny Halevy { 88313c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 88413c65ce9SBenny Halevy BUG_ON(!p); 88513c65ce9SBenny Halevy return p; 88613c65ce9SBenny Halevy } 8871da177e4SLinus Torvalds 8881da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 8891da177e4SLinus Torvalds { 8908687b63aSAl Viro __be32 *p; 8911da177e4SLinus Torvalds 8921da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 8931da177e4SLinus Torvalds BUG_ON(p == NULL); 8941da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 8951da177e4SLinus Torvalds } 8961da177e4SLinus Torvalds 8970c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 8980c4e8c18SBenny Halevy struct rpc_rqst *req, 8990c4e8c18SBenny Halevy struct compound_hdr *hdr) 9001da177e4SLinus Torvalds { 9018687b63aSAl Viro __be32 *p; 902a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9030c4e8c18SBenny Halevy 9040c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9050c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9060c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9070c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9081da177e4SLinus Torvalds 9091da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 910811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 911811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 912e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 913d017931cSAndy Adamson hdr->nops_p = p; 91434558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 915d017931cSAndy Adamson } 916d017931cSAndy Adamson 917d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 918d017931cSAndy Adamson { 919fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 920d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9211da177e4SLinus Torvalds } 9221da177e4SLinus Torvalds 9231da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9241da177e4SLinus Torvalds { 9258687b63aSAl Viro __be32 *p; 9261da177e4SLinus Torvalds 9271da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 9281da177e4SLinus Torvalds BUG_ON(p == NULL); 9291da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 9301da177e4SLinus Torvalds } 9311da177e4SLinus Torvalds 932cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9331da177e4SLinus Torvalds { 9341da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9351da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9361da177e4SLinus Torvalds int owner_namelen = 0; 9371da177e4SLinus Torvalds int owner_grouplen = 0; 9388687b63aSAl Viro __be32 *p; 9398687b63aSAl Viro __be32 *q; 9401da177e4SLinus Torvalds int len; 9411da177e4SLinus Torvalds uint32_t bmval0 = 0; 9421da177e4SLinus Torvalds uint32_t bmval1 = 0; 9431da177e4SLinus Torvalds 9441da177e4SLinus Torvalds /* 9451da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9461da177e4SLinus Torvalds * In the worst-case, this would be 9471da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9481da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 94923ec6965SJ. Bruce Fields * such as owner/group. 9501da177e4SLinus Torvalds */ 9511da177e4SLinus Torvalds len = 16; 9521da177e4SLinus Torvalds 9531da177e4SLinus Torvalds /* Sigh */ 9541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9551da177e4SLinus Torvalds len += 8; 9561da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 9571da177e4SLinus Torvalds len += 4; 9581da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 959e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 9601da177e4SLinus Torvalds if (owner_namelen < 0) { 961fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 9621da177e4SLinus Torvalds iap->ia_uid); 9631da177e4SLinus Torvalds /* XXX */ 9641da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 9651da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 9661da177e4SLinus Torvalds /* goto out; */ 9671da177e4SLinus Torvalds } 9681da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 9691da177e4SLinus Torvalds } 9701da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 971e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 9721da177e4SLinus Torvalds if (owner_grouplen < 0) { 973fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 9741da177e4SLinus Torvalds iap->ia_gid); 9751da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 9761da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 9771da177e4SLinus Torvalds /* goto out; */ 9781da177e4SLinus Torvalds } 9791da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 9801da177e4SLinus Torvalds } 9811da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 9821da177e4SLinus Torvalds len += 16; 9831da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 9841da177e4SLinus Torvalds len += 4; 9851da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 9861da177e4SLinus Torvalds len += 16; 9871da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 9881da177e4SLinus Torvalds len += 4; 98913c65ce9SBenny Halevy p = reserve_space(xdr, len); 9901da177e4SLinus Torvalds 9911da177e4SLinus Torvalds /* 9921da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 9931da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 9941da177e4SLinus Torvalds */ 995e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 9961da177e4SLinus Torvalds q = p; 9971da177e4SLinus Torvalds p += 3; 9981da177e4SLinus Torvalds 9991da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 10001da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 1001b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 10021da177e4SLinus Torvalds } 10031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10041da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1005e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10061da177e4SLinus Torvalds } 10071da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10081da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1009811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10101da177e4SLinus Torvalds } 10111da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10121da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1013811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10161da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1017e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1018e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1019d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1020d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10211da177e4SLinus Torvalds } 10221da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10231da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1024e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10251da177e4SLinus Torvalds } 10261da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10271da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1028e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1029e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1030e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1031e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10321da177e4SLinus Torvalds } 10331da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10341da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1035e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10361da177e4SLinus Torvalds } 10371da177e4SLinus Torvalds 10381da177e4SLinus Torvalds /* 10391da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10401da177e4SLinus Torvalds */ 10411da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1042f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10431da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10441da177e4SLinus Torvalds BUG(); 10451da177e4SLinus Torvalds } 10461da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10471da177e4SLinus Torvalds *q++ = htonl(bmval0); 10481da177e4SLinus Torvalds *q++ = htonl(bmval1); 104934558513SBenny Halevy *q = htonl(len); 10501da177e4SLinus Torvalds 10511da177e4SLinus Torvalds /* out: */ 10521da177e4SLinus Torvalds } 10531da177e4SLinus Torvalds 1054cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10551da177e4SLinus Torvalds { 10568687b63aSAl Viro __be32 *p; 10571da177e4SLinus Torvalds 105813c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1059e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 106034558513SBenny Halevy *p = cpu_to_be32(access); 1061d017931cSAndy Adamson hdr->nops++; 1062dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 10631da177e4SLinus Torvalds } 10641da177e4SLinus Torvalds 1065cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 10661da177e4SLinus Torvalds { 10678687b63aSAl Viro __be32 *p; 10681da177e4SLinus Torvalds 106913c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 1070e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 1071e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 107234558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 1073d017931cSAndy Adamson hdr->nops++; 1074dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 10751da177e4SLinus Torvalds } 10761da177e4SLinus Torvalds 1077cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 10781da177e4SLinus Torvalds { 10798687b63aSAl Viro __be32 *p; 10801da177e4SLinus Torvalds 108113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1082e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 1083b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 108434558513SBenny Halevy *p = cpu_to_be32(args->count); 1085d017931cSAndy Adamson hdr->nops++; 1086dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 10871da177e4SLinus Torvalds } 10881da177e4SLinus Torvalds 1089cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 10901da177e4SLinus Torvalds { 10918687b63aSAl Viro __be32 *p; 10921da177e4SLinus Torvalds 109313c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1094e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 109534558513SBenny Halevy *p = cpu_to_be32(create->ftype); 10961da177e4SLinus Torvalds 10971da177e4SLinus Torvalds switch (create->ftype) { 10981da177e4SLinus Torvalds case NF4LNK: 109913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 110034558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 110194a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11021da177e4SLinus Torvalds break; 11031da177e4SLinus Torvalds 11041da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 110513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1106e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 110734558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11081da177e4SLinus Torvalds break; 11091da177e4SLinus Torvalds 11101da177e4SLinus Torvalds default: 11111da177e4SLinus Torvalds break; 11121da177e4SLinus Torvalds } 11131da177e4SLinus Torvalds 1114811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1115d017931cSAndy Adamson hdr->nops++; 1116dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 11171da177e4SLinus Torvalds 1118cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11191da177e4SLinus Torvalds } 11201da177e4SLinus Torvalds 1121cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11221da177e4SLinus Torvalds { 11238687b63aSAl Viro __be32 *p; 11241da177e4SLinus Torvalds 112513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1126e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1127e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 112834558513SBenny Halevy *p = cpu_to_be32(bitmap); 1129d017931cSAndy Adamson hdr->nops++; 1130dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 11311da177e4SLinus Torvalds } 11321da177e4SLinus Torvalds 1133cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11341da177e4SLinus Torvalds { 11358687b63aSAl Viro __be32 *p; 11361da177e4SLinus Torvalds 113713c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1138e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1139e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1140e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 114134558513SBenny Halevy *p = cpu_to_be32(bm1); 1142d017931cSAndy Adamson hdr->nops++; 1143dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 11441da177e4SLinus Torvalds } 11451da177e4SLinus Torvalds 1146dae100c2SFred Isaman static void 1147dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1148dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1149dae100c2SFred Isaman struct compound_hdr *hdr) 1150dae100c2SFred Isaman { 1151dae100c2SFred Isaman __be32 *p; 1152dae100c2SFred Isaman 1153dae100c2SFred Isaman p = reserve_space(xdr, 4); 1154dae100c2SFred Isaman *p = cpu_to_be32(OP_GETATTR); 1155dae100c2SFred Isaman if (bm2) { 1156dae100c2SFred Isaman p = reserve_space(xdr, 16); 1157dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1158dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1159dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1160dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1161dae100c2SFred Isaman } else if (bm1) { 1162dae100c2SFred Isaman p = reserve_space(xdr, 12); 1163dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1164dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1165dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1166dae100c2SFred Isaman } else { 1167dae100c2SFred Isaman p = reserve_space(xdr, 8); 1168dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1169dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1170dae100c2SFred Isaman } 1171dae100c2SFred Isaman hdr->nops++; 1172dae100c2SFred Isaman hdr->replen += decode_getattr_maxsz; 1173dae100c2SFred Isaman } 1174dae100c2SFred Isaman 1175cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11761da177e4SLinus Torvalds { 1177cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1178d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11791da177e4SLinus Torvalds } 11801da177e4SLinus Torvalds 1181cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11821da177e4SLinus Torvalds { 1183dae100c2SFred Isaman encode_getattr_three(xdr, 1184dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1185dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1186dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1187dae100c2SFred Isaman hdr); 11881da177e4SLinus Torvalds } 11891da177e4SLinus Torvalds 1190cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1191830b8e33SManoj Naik { 1192cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1193cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1194830b8e33SManoj Naik } 1195830b8e33SManoj Naik 1196cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 11971da177e4SLinus Torvalds { 11988687b63aSAl Viro __be32 *p; 11991da177e4SLinus Torvalds 120013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 120134558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1202d017931cSAndy Adamson hdr->nops++; 1203dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 12041da177e4SLinus Torvalds } 12051da177e4SLinus Torvalds 1206cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12071da177e4SLinus Torvalds { 12088687b63aSAl Viro __be32 *p; 12091da177e4SLinus Torvalds 121013c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1211e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1212811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1213d017931cSAndy Adamson hdr->nops++; 1214dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 12151da177e4SLinus Torvalds } 12161da177e4SLinus Torvalds 1217911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1218911d1aafSTrond Myklebust { 1219911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1220911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1221911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1222911d1aafSTrond Myklebust } 1223911d1aafSTrond Myklebust 1224911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1225911d1aafSTrond Myklebust { 1226911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1227911d1aafSTrond Myklebust return ~(uint64_t)0; 1228911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1229911d1aafSTrond Myklebust } 1230911d1aafSTrond Myklebust 1231daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1232daccbdedSTrond Myklebust { 1233daccbdedSTrond Myklebust __be32 *p; 1234daccbdedSTrond Myklebust 1235d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1236daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1237d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1238daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1239d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1240daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1241daccbdedSTrond Myklebust } 1242daccbdedSTrond Myklebust 12431da177e4SLinus Torvalds /* 12441da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12451da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12461da177e4SLinus Torvalds */ 1247cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12481da177e4SLinus Torvalds { 12498687b63aSAl Viro __be32 *p; 12501da177e4SLinus Torvalds 125113c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1252e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1253e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1254e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1255b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1256b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 125734558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1258911d1aafSTrond Myklebust if (args->new_lock_owner){ 1259daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1260e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 126193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1262e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1263daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12641da177e4SLinus Torvalds } 12651da177e4SLinus Torvalds else { 126613c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 126793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 126834558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 12691da177e4SLinus Torvalds } 1270d017931cSAndy Adamson hdr->nops++; 1271dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 12721da177e4SLinus Torvalds } 12731da177e4SLinus Torvalds 1274cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12751da177e4SLinus Torvalds { 12768687b63aSAl Viro __be32 *p; 12771da177e4SLinus Torvalds 1278daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1279e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1280e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1281b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1282b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1283daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1284d017931cSAndy Adamson hdr->nops++; 1285dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 12861da177e4SLinus Torvalds } 12871da177e4SLinus Torvalds 1288cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 12891da177e4SLinus Torvalds { 12908687b63aSAl Viro __be32 *p; 12911da177e4SLinus Torvalds 129213c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1293e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1294e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1295e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 129693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1297b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 129834558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1299d017931cSAndy Adamson hdr->nops++; 1300dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 13011da177e4SLinus Torvalds } 13021da177e4SLinus Torvalds 1303d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1304d3c7b7ccSTrond Myklebust { 1305d3c7b7ccSTrond Myklebust __be32 *p; 1306d3c7b7ccSTrond Myklebust 1307d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1308d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1309d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1310d3c7b7ccSTrond Myklebust hdr->nops++; 1311d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1312d3c7b7ccSTrond Myklebust } 1313d3c7b7ccSTrond Myklebust 1314cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13151da177e4SLinus Torvalds { 13161da177e4SLinus Torvalds int len = name->len; 13178687b63aSAl Viro __be32 *p; 13181da177e4SLinus Torvalds 131913c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1320e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1321811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1322d017931cSAndy Adamson hdr->nops++; 1323dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 13241da177e4SLinus Torvalds } 13251da177e4SLinus Torvalds 1326dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13271da177e4SLinus Torvalds { 13288687b63aSAl Viro __be32 *p; 13291da177e4SLinus Torvalds 133013c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1331dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13321da177e4SLinus Torvalds case FMODE_READ: 1333e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13341da177e4SLinus Torvalds break; 13351da177e4SLinus Torvalds case FMODE_WRITE: 1336e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13371da177e4SLinus Torvalds break; 13381da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1339e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13401da177e4SLinus Torvalds break; 13411da177e4SLinus Torvalds default: 1342e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13431da177e4SLinus Torvalds } 134434558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13451da177e4SLinus Torvalds } 13461da177e4SLinus Torvalds 13471da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13481da177e4SLinus Torvalds { 13498687b63aSAl Viro __be32 *p; 13501da177e4SLinus Torvalds /* 13511da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13521da177e4SLinus Torvalds * owner 4 = 32 13531da177e4SLinus Torvalds */ 135413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1355e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 135634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1357dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1358d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1359b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1360d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 136193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1362d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 136334558513SBenny Halevy xdr_encode_hyper(p, arg->id); 13641da177e4SLinus Torvalds } 13651da177e4SLinus Torvalds 13661da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13671da177e4SLinus Torvalds { 13688687b63aSAl Viro __be32 *p; 13694882ef72SAlexandros Batsakis struct nfs_client *clp; 13701da177e4SLinus Torvalds 137113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13721da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13731da177e4SLinus Torvalds case 0: 137434558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13751da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13761da177e4SLinus Torvalds break; 13771da177e4SLinus Torvalds default: 13784882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1379a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13804882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13814882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13824882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13834882ef72SAlexandros Batsakis } else { 13844882ef72SAlexandros Batsakis struct iattr dummy; 13854882ef72SAlexandros Batsakis 13864882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13874882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13884882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13894882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13904882ef72SAlexandros Batsakis } 13914882ef72SAlexandros Batsakis } else { 139234558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13931da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13941da177e4SLinus Torvalds } 13951da177e4SLinus Torvalds } 13964882ef72SAlexandros Batsakis } 13971da177e4SLinus Torvalds 13981da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13991da177e4SLinus Torvalds { 14008687b63aSAl Viro __be32 *p; 14011da177e4SLinus Torvalds 140213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14031da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14041da177e4SLinus Torvalds case 0: 140534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14061da177e4SLinus Torvalds break; 14071da177e4SLinus Torvalds default: 14081da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 140934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14101da177e4SLinus Torvalds encode_createmode(xdr, arg); 14111da177e4SLinus Torvalds } 14121da177e4SLinus Torvalds } 14131da177e4SLinus Torvalds 1414bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14151da177e4SLinus Torvalds { 14168687b63aSAl Viro __be32 *p; 14171da177e4SLinus Torvalds 141813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14191da177e4SLinus Torvalds switch (delegation_type) { 14201da177e4SLinus Torvalds case 0: 142134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14221da177e4SLinus Torvalds break; 14231da177e4SLinus Torvalds case FMODE_READ: 142434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14251da177e4SLinus Torvalds break; 14261da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 142734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14281da177e4SLinus Torvalds break; 14291da177e4SLinus Torvalds default: 14301da177e4SLinus Torvalds BUG(); 14311da177e4SLinus Torvalds } 14321da177e4SLinus Torvalds } 14331da177e4SLinus Torvalds 14341da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14351da177e4SLinus Torvalds { 14368687b63aSAl Viro __be32 *p; 14371da177e4SLinus Torvalds 143813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14401da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14411da177e4SLinus Torvalds } 14421da177e4SLinus Torvalds 1443bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14441da177e4SLinus Torvalds { 14458687b63aSAl Viro __be32 *p; 14461da177e4SLinus Torvalds 144713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14491da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14501da177e4SLinus Torvalds } 14511da177e4SLinus Torvalds 14521da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14531da177e4SLinus Torvalds { 14548687b63aSAl Viro __be32 *p; 14551da177e4SLinus Torvalds 145613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1457e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 145834558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 14591da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14601da177e4SLinus Torvalds } 14611da177e4SLinus Torvalds 1462cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14631da177e4SLinus Torvalds { 14641da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14651da177e4SLinus Torvalds encode_opentype(xdr, arg); 14661da177e4SLinus Torvalds switch (arg->claim) { 14671da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14681da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14691da177e4SLinus Torvalds break; 14701da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14711da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14721da177e4SLinus Torvalds break; 14731da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14741da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14751da177e4SLinus Torvalds break; 14761da177e4SLinus Torvalds default: 14771da177e4SLinus Torvalds BUG(); 14781da177e4SLinus Torvalds } 1479d017931cSAndy Adamson hdr->nops++; 1480dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 14811da177e4SLinus Torvalds } 14821da177e4SLinus Torvalds 1483cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 14841da177e4SLinus Torvalds { 14858687b63aSAl Viro __be32 *p; 14861da177e4SLinus Torvalds 148713c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1488e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 148993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 149034558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1491d017931cSAndy Adamson hdr->nops++; 1492dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 14931da177e4SLinus Torvalds } 14941da177e4SLinus Torvalds 1495cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 14961da177e4SLinus Torvalds { 14978687b63aSAl Viro __be32 *p; 14981da177e4SLinus Torvalds 149913c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1500e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 150193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 150234558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1503dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1504d017931cSAndy Adamson hdr->nops++; 1505dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 15061da177e4SLinus Torvalds } 15071da177e4SLinus Torvalds 1508cf8cdbe5SAndy Adamson static void 1509d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15101da177e4SLinus Torvalds { 15111da177e4SLinus Torvalds int len = fh->size; 15128687b63aSAl Viro __be32 *p; 15131da177e4SLinus Torvalds 151413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1515e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1516811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1517d017931cSAndy Adamson hdr->nops++; 1518dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 15191da177e4SLinus Torvalds } 15201da177e4SLinus Torvalds 1521cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15221da177e4SLinus Torvalds { 15238687b63aSAl Viro __be32 *p; 15241da177e4SLinus Torvalds 152513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 152634558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1527d017931cSAndy Adamson hdr->nops++; 1528dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 15291da177e4SLinus Torvalds } 15301da177e4SLinus Torvalds 1531d0b496d2STrond Myklebust static void encode_open_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid) 15321da177e4SLinus Torvalds { 15331da177e4SLinus Torvalds nfs4_stateid stateid; 15348687b63aSAl Viro __be32 *p; 15351da177e4SLinus Torvalds 153613c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 15371da177e4SLinus Torvalds if (ctx->state != NULL) { 153877041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 153989d1ea65SAndy Adamson if (zero_seqid) 154089d1ea65SAndy Adamson stateid.stateid.seqid = 0; 154134558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 15421da177e4SLinus Torvalds } else 154334558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 15441da177e4SLinus Torvalds } 15451da177e4SLinus Torvalds 1546cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15471da177e4SLinus Torvalds { 15488687b63aSAl Viro __be32 *p; 15491da177e4SLinus Torvalds 155013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 155134558513SBenny Halevy *p = cpu_to_be32(OP_READ); 15521da177e4SLinus Torvalds 1553d0b496d2STrond Myklebust encode_open_stateid(xdr, args->context, args->lock_context, 155489d1ea65SAndy Adamson hdr->minorversion); 15551da177e4SLinus Torvalds 155613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1557b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 155834558513SBenny Halevy *p = cpu_to_be32(args->count); 1559d017931cSAndy Adamson hdr->nops++; 1560dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 15611da177e4SLinus Torvalds } 15621da177e4SLinus Torvalds 1563cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15641da177e4SLinus Torvalds { 156528331a46STrond Myklebust uint32_t attrs[2] = { 156628331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 156728331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 156828331a46STrond Myklebust }; 15696f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 15708687b63aSAl Viro __be32 *p; 15711da177e4SLinus Torvalds 157282f2e547SBryan Schumaker if (readdir->plus) { 157382f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 157428331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 157582f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 157682f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 157782f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 157882f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15796f7a35bdSTrond Myklebust dircount >>= 1; 158082f2e547SBryan Schumaker } 158128331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 158228331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 158328331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15846f7a35bdSTrond Myklebust 15856f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 15866f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 15876f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 15886f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 15896f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15906f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15916f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 159282f2e547SBryan Schumaker 1593e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 159434558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1595d017931cSAndy Adamson hdr->nops++; 1596dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 159744109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 159844109241SFred Isaman __func__, 1599eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1600eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1601eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1602eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1603eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 16041da177e4SLinus Torvalds } 16051da177e4SLinus Torvalds 1606cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16071da177e4SLinus Torvalds { 16088687b63aSAl Viro __be32 *p; 16091da177e4SLinus Torvalds 161013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 161134558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1612d017931cSAndy Adamson hdr->nops++; 1613dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 16141da177e4SLinus Torvalds } 16151da177e4SLinus Torvalds 1616cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16171da177e4SLinus Torvalds { 16188687b63aSAl Viro __be32 *p; 16191da177e4SLinus Torvalds 162013c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1621e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1622811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1623d017931cSAndy Adamson hdr->nops++; 1624dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 16251da177e4SLinus Torvalds } 16261da177e4SLinus Torvalds 1627cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16281da177e4SLinus Torvalds { 16298687b63aSAl Viro __be32 *p; 16301da177e4SLinus Torvalds 1631811652bdSBenny Halevy p = reserve_space(xdr, 4); 1632811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1633811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1634811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1635d017931cSAndy Adamson hdr->nops++; 1636dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 16371da177e4SLinus Torvalds } 16381da177e4SLinus Torvalds 1639bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1640bb4dae5eSChuck Lever struct compound_hdr *hdr) 16411da177e4SLinus Torvalds { 16428687b63aSAl Viro __be32 *p; 16431da177e4SLinus Torvalds 164413c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1645e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 1646bb4dae5eSChuck Lever xdr_encode_hyper(p, clid); 1647d017931cSAndy Adamson hdr->nops++; 1648dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 16491da177e4SLinus Torvalds } 16501da177e4SLinus Torvalds 1651cf8cdbe5SAndy Adamson static void 1652d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 165356ae19f3STrond Myklebust { 16548687b63aSAl Viro __be32 *p; 165556ae19f3STrond Myklebust 165613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165734558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1658d017931cSAndy Adamson hdr->nops++; 1659dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 166056ae19f3STrond Myklebust } 166156ae19f3STrond Myklebust 16629f06c719SChuck Lever static void 1663d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 166423ec6965SJ. Bruce Fields { 16658687b63aSAl Viro __be32 *p; 166623ec6965SJ. Bruce Fields 166713c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1668e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 166934558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 167013c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1671e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 167234558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 16739f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 167413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 167534558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 167623ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1677d017931cSAndy Adamson hdr->nops++; 1678dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 167923ec6965SJ. Bruce Fields } 168023ec6965SJ. Bruce Fields 1681cf8cdbe5SAndy Adamson static void 1682d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16831da177e4SLinus Torvalds { 16848687b63aSAl Viro __be32 *p; 16851da177e4SLinus Torvalds 168613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 168734558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1688d017931cSAndy Adamson hdr->nops++; 1689dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 16901da177e4SLinus Torvalds } 16911da177e4SLinus Torvalds 1692cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16931da177e4SLinus Torvalds { 16948687b63aSAl Viro __be32 *p; 16951da177e4SLinus Torvalds 169613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1697e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 169834558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1699d017931cSAndy Adamson hdr->nops++; 1700dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1701cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 17021da177e4SLinus Torvalds } 17031da177e4SLinus Torvalds 1704cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 17051da177e4SLinus Torvalds { 17068687b63aSAl Viro __be32 *p; 17071da177e4SLinus Torvalds 170813c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1709e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 171034558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 17111da177e4SLinus Torvalds 17121da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 171313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 171434558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 17151da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 17161da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 171713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 171834558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1719d017931cSAndy Adamson hdr->nops++; 1720dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 17211da177e4SLinus Torvalds } 17221da177e4SLinus Torvalds 1723bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 17241da177e4SLinus Torvalds { 17258687b63aSAl Viro __be32 *p; 17261da177e4SLinus Torvalds 172713c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1728e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1729bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1730bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1731d017931cSAndy Adamson hdr->nops++; 1732dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 17331da177e4SLinus Torvalds } 17341da177e4SLinus Torvalds 1735cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 17361da177e4SLinus Torvalds { 17378687b63aSAl Viro __be32 *p; 17381da177e4SLinus Torvalds 173913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 174034558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 17411da177e4SLinus Torvalds 1742d0b496d2STrond Myklebust encode_open_stateid(xdr, args->context, args->lock_context, 174389d1ea65SAndy Adamson hdr->minorversion); 17441da177e4SLinus Torvalds 174513c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1746b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1747e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 174834558513SBenny Halevy *p = cpu_to_be32(args->count); 17491da177e4SLinus Torvalds 17501da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1751d017931cSAndy Adamson hdr->nops++; 1752dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 17531da177e4SLinus Torvalds } 17541da177e4SLinus Torvalds 1755cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17561da177e4SLinus Torvalds { 17578687b63aSAl Viro __be32 *p; 17581da177e4SLinus Torvalds 175913c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 17601da177e4SLinus Torvalds 1761e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 176234558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1763d017931cSAndy Adamson hdr->nops++; 1764dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 17651da177e4SLinus Torvalds } 17669b7b9fccSAndy Adamson 17675a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17685a5ea0d4SBryan Schumaker { 17695a5ea0d4SBryan Schumaker int len = name->len; 17705a5ea0d4SBryan Schumaker __be32 *p; 17715a5ea0d4SBryan Schumaker 17725a5ea0d4SBryan Schumaker p = reserve_space(xdr, 8 + len); 17735a5ea0d4SBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO); 17745a5ea0d4SBryan Schumaker xdr_encode_opaque(p, name->name, len); 17755a5ea0d4SBryan Schumaker hdr->nops++; 17765a5ea0d4SBryan Schumaker hdr->replen += decode_secinfo_maxsz; 17775a5ea0d4SBryan Schumaker } 17785a5ea0d4SBryan Schumaker 177999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17809b7b9fccSAndy Adamson /* NFSv4.1 operations */ 178199fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 178299fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 178399fe60d0SBenny Halevy struct compound_hdr *hdr) 178499fe60d0SBenny Halevy { 178599fe60d0SBenny Halevy __be32 *p; 1786db8ac8baSWeston Andros Adamson char impl_name[NFS4_OPAQUE_LIMIT]; 1787db8ac8baSWeston Andros Adamson int len = 0; 178899fe60d0SBenny Halevy 178913c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1790e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 179134558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 179299fe60d0SBenny Halevy 179399fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 179499fe60d0SBenny Halevy 179513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1796e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1797e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1798db8ac8baSWeston Andros Adamson 1799db8ac8baSWeston Andros Adamson if (send_implementation_id && 1800db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1801db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1802db8ac8baSWeston Andros Adamson <= NFS4_OPAQUE_LIMIT + 1) 1803db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1804db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1805db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1806db8ac8baSWeston Andros Adamson 1807db8ac8baSWeston Andros Adamson if (len > 0) { 1808db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1809db8ac8baSWeston Andros Adamson 1810db8ac8baSWeston Andros Adamson encode_string(xdr, 1811db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1812db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1813db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1814db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1815db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1816db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1817db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1818db8ac8baSWeston Andros Adamson } else 1819db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 1820db8ac8baSWeston Andros Adamson 182199fe60d0SBenny Halevy hdr->nops++; 182299fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 182399fe60d0SBenny Halevy } 1824fc931582SAndy Adamson 1825fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1826fc931582SAndy Adamson struct nfs41_create_session_args *args, 1827fc931582SAndy Adamson struct compound_hdr *hdr) 1828fc931582SAndy Adamson { 1829fc931582SAndy Adamson __be32 *p; 1830fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1831fc931582SAndy Adamson uint32_t len; 1832fc931582SAndy Adamson struct nfs_client *clp = args->client; 18338e0d46e1SMike Sager u32 max_resp_sz_cached; 18348e0d46e1SMike Sager 18358e0d46e1SMike Sager /* 18368e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 18378e0d46e1SMike Sager * 2 is the verifier. 18388e0d46e1SMike Sager */ 18398e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 18408e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1841fc931582SAndy Adamson 1842fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1843fc931582SAndy Adamson clp->cl_ipaddr); 184442edd698SBenny Halevy 184513c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1846e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1847114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1848e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1849e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1850fc931582SAndy Adamson 1851fc931582SAndy Adamson /* Fore Channel */ 1852c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1853e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18558e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1856e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1857e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1858e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1859fc931582SAndy Adamson 1860fc931582SAndy Adamson /* Back Channel */ 1861c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1862e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1863e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1864e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1866e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1868fc931582SAndy Adamson 1869e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1870e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1871e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1872fc931582SAndy Adamson 1873fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1874e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1875811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1876e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1877e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 187834558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1879fc931582SAndy Adamson hdr->nops++; 1880fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1881fc931582SAndy Adamson } 18820f3e66c6SAndy Adamson 18830f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18840f3e66c6SAndy Adamson struct nfs4_session *session, 18850f3e66c6SAndy Adamson struct compound_hdr *hdr) 18860f3e66c6SAndy Adamson { 18870f3e66c6SAndy Adamson __be32 *p; 188813c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1889e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 189034558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18910f3e66c6SAndy Adamson hdr->nops++; 18920f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 18930f3e66c6SAndy Adamson } 189418019753SRicardo Labiaga 189518019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 189618019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 189718019753SRicardo Labiaga struct compound_hdr *hdr) 189818019753SRicardo Labiaga { 189918019753SRicardo Labiaga __be32 *p; 190018019753SRicardo Labiaga 190118019753SRicardo Labiaga p = reserve_space(xdr, 8); 190218019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 190318019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 190418019753SRicardo Labiaga hdr->nops++; 190518019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 190618019753SRicardo Labiaga } 190799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 190899fe60d0SBenny Halevy 19099b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 19109b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 19119b7b9fccSAndy Adamson struct compound_hdr *hdr) 19129b7b9fccSAndy Adamson { 19139b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 19149b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1915fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1916fc01cea9SAndy Adamson struct nfs4_slot *slot; 1917fc01cea9SAndy Adamson __be32 *p; 19189b7b9fccSAndy Adamson 19199b7b9fccSAndy Adamson if (!session) 19209b7b9fccSAndy Adamson return; 19219b7b9fccSAndy Adamson 1922fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1923fc01cea9SAndy Adamson 1924fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1925fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1926fc01cea9SAndy Adamson 192713c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1928e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1929fc01cea9SAndy Adamson 1930fc01cea9SAndy Adamson /* 1931fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1932fc01cea9SAndy Adamson */ 1933fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1934fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1935fc01cea9SAndy Adamson __func__, 1936fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1937fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1938fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1939fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1940fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1941fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 194293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1943e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1944e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1945e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 194634558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19479b7b9fccSAndy Adamson hdr->nops++; 19489b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 19499b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19509b7b9fccSAndy Adamson } 19519b7b9fccSAndy Adamson 1952b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1953b1f69b75SAndy Adamson static void 19547f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 19557f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 19567f11d8d3SAndy Adamson struct compound_hdr *hdr) 19577f11d8d3SAndy Adamson { 19587f11d8d3SAndy Adamson __be32 *p; 19597f11d8d3SAndy Adamson nfs4_verifier dummy = { 19607f11d8d3SAndy Adamson .data = "dummmmmy", 19617f11d8d3SAndy Adamson }; 19627f11d8d3SAndy Adamson 19637f11d8d3SAndy Adamson p = reserve_space(xdr, 20); 19647f11d8d3SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICELIST); 19657f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 19667f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 19677f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 19687f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 19697f11d8d3SAndy Adamson hdr->nops++; 19707f11d8d3SAndy Adamson hdr->replen += decode_getdevicelist_maxsz; 19717f11d8d3SAndy Adamson } 19727f11d8d3SAndy Adamson 19737f11d8d3SAndy Adamson static void 1974b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1975b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1976b1f69b75SAndy Adamson struct compound_hdr *hdr) 1977b1f69b75SAndy Adamson { 1978b1f69b75SAndy Adamson __be32 *p; 1979b1f69b75SAndy Adamson 1980b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1981b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1982b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1983b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1984b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1985b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1986b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1987b1f69b75SAndy Adamson hdr->nops++; 1988b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1989b1f69b75SAndy Adamson } 1990b1f69b75SAndy Adamson 1991b1f69b75SAndy Adamson static void 1992b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1993b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1994b1f69b75SAndy Adamson struct compound_hdr *hdr) 1995b1f69b75SAndy Adamson { 1996b1f69b75SAndy Adamson __be32 *p; 1997b1f69b75SAndy Adamson 1998b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1999b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 2000b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 2001b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 2002b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 2003b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 2004b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 2005b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 2006cf7d63f1SFred Isaman p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 2007b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 2008b1f69b75SAndy Adamson 2009b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 2010b1f69b75SAndy Adamson __func__, 2011b1f69b75SAndy Adamson args->type, 2012b1f69b75SAndy Adamson args->range.iomode, 2013b1f69b75SAndy Adamson (unsigned long)args->range.offset, 2014b1f69b75SAndy Adamson (unsigned long)args->range.length, 2015b1f69b75SAndy Adamson args->maxcount); 2016b1f69b75SAndy Adamson hdr->nops++; 2017b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 2018b1f69b75SAndy Adamson } 2019863a3c6cSAndy Adamson 2020863a3c6cSAndy Adamson static int 2021863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 2022ac7db726SBenny Halevy struct inode *inode, 2023863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 2024863a3c6cSAndy Adamson struct compound_hdr *hdr) 2025863a3c6cSAndy Adamson { 2026863a3c6cSAndy Adamson __be32 *p; 2027863a3c6cSAndy Adamson 2028863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 2029863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 2030863a3c6cSAndy Adamson 2031ac7db726SBenny Halevy p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 2032863a3c6cSAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); 2033863a3c6cSAndy Adamson /* Only whole file layouts */ 2034863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 20353557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 2036863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* reclaim */ 2037863a3c6cSAndy Adamson p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE); 2038863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 2039863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 2040863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 2041863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 2042ac7db726SBenny Halevy 2043ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 2044ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 2045ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 2046ac7db726SBenny Halevy else { 2047ac7db726SBenny Halevy p = reserve_space(xdr, 4); 2048ac7db726SBenny Halevy *p = cpu_to_be32(0); /* no layout-type payload */ 2049ac7db726SBenny Halevy } 2050863a3c6cSAndy Adamson 2051863a3c6cSAndy Adamson hdr->nops++; 2052863a3c6cSAndy Adamson hdr->replen += decode_layoutcommit_maxsz; 2053863a3c6cSAndy Adamson return 0; 2054863a3c6cSAndy Adamson } 2055cbe82603SBenny Halevy 2056cbe82603SBenny Halevy static void 2057cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2058cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2059cbe82603SBenny Halevy struct compound_hdr *hdr) 2060cbe82603SBenny Halevy { 2061cbe82603SBenny Halevy __be32 *p; 2062cbe82603SBenny Halevy 2063cbe82603SBenny Halevy p = reserve_space(xdr, 20); 2064cbe82603SBenny Halevy *p++ = cpu_to_be32(OP_LAYOUTRETURN); 2065cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2066cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 2067cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 2068cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2069cbe82603SBenny Halevy p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE); 2070cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 2071cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 2072cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2073cbe82603SBenny Halevy xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 2074cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 207504a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 207604a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 207704a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 207804a55549SAndy Adamson } else { 2079cbe82603SBenny Halevy p = reserve_space(xdr, 4); 2080cbe82603SBenny Halevy *p = cpu_to_be32(0); 208104a55549SAndy Adamson } 2082cbe82603SBenny Halevy hdr->nops++; 2083cbe82603SBenny Halevy hdr->replen += decode_layoutreturn_maxsz; 2084cbe82603SBenny Halevy } 2085fca78d6dSBryan Schumaker 2086fca78d6dSBryan Schumaker static int 2087fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2088fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2089fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2090fca78d6dSBryan Schumaker { 2091fca78d6dSBryan Schumaker __be32 *p; 2092fca78d6dSBryan Schumaker p = reserve_space(xdr, 8); 2093fca78d6dSBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO_NO_NAME); 2094fca78d6dSBryan Schumaker *p++ = cpu_to_be32(args->style); 2095fca78d6dSBryan Schumaker hdr->nops++; 2096fca78d6dSBryan Schumaker hdr->replen += decode_secinfo_no_name_maxsz; 2097fca78d6dSBryan Schumaker return 0; 2098fca78d6dSBryan Schumaker } 20997d974794SBryan Schumaker 21007d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 21017d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 21027d974794SBryan Schumaker struct compound_hdr *hdr) 21037d974794SBryan Schumaker { 21047d974794SBryan Schumaker __be32 *p; 21057d974794SBryan Schumaker 21067d974794SBryan Schumaker p = reserve_space(xdr, 8 + NFS4_STATEID_SIZE); 21077d974794SBryan Schumaker *p++ = cpu_to_be32(OP_TEST_STATEID); 21087d974794SBryan Schumaker *p++ = cpu_to_be32(1); 21097d974794SBryan Schumaker xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 21107d974794SBryan Schumaker hdr->nops++; 21117d974794SBryan Schumaker hdr->replen += decode_test_stateid_maxsz; 21127d974794SBryan Schumaker } 21139aeda35fSBryan Schumaker 21149aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 21159aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 21169aeda35fSBryan Schumaker struct compound_hdr *hdr) 21179aeda35fSBryan Schumaker { 21189aeda35fSBryan Schumaker __be32 *p; 21199aeda35fSBryan Schumaker p = reserve_space(xdr, 4 + NFS4_STATEID_SIZE); 21209aeda35fSBryan Schumaker *p++ = cpu_to_be32(OP_FREE_STATEID); 21219aeda35fSBryan Schumaker xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 21229aeda35fSBryan Schumaker hdr->nops++; 21239aeda35fSBryan Schumaker hdr->replen += decode_free_stateid_maxsz; 21249aeda35fSBryan Schumaker } 2125b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2126b1f69b75SAndy Adamson 21271da177e4SLinus Torvalds /* 21281da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 21291da177e4SLinus Torvalds */ 21301da177e4SLinus Torvalds 213166cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 213266cc0429SBenny Halevy { 213366cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 213466cc0429SBenny Halevy if (args->sa_session) 2135a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 213666cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 213766cc0429SBenny Halevy return 0; 213866cc0429SBenny Halevy } 213966cc0429SBenny Halevy 21401da177e4SLinus Torvalds /* 21411da177e4SLinus Torvalds * Encode an ACCESS request 21421da177e4SLinus Torvalds */ 21439f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 21449f06c719SChuck Lever const struct nfs4_accessargs *args) 21451da177e4SLinus Torvalds { 21461da177e4SLinus Torvalds struct compound_hdr hdr = { 214766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21481da177e4SLinus Torvalds }; 21491da177e4SLinus Torvalds 21509f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21519f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21529f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21539f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21549f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2155d017931cSAndy Adamson encode_nops(&hdr); 21561da177e4SLinus Torvalds } 21571da177e4SLinus Torvalds 21581da177e4SLinus Torvalds /* 21591da177e4SLinus Torvalds * Encode LOOKUP request 21601da177e4SLinus Torvalds */ 21619f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 21629f06c719SChuck Lever const struct nfs4_lookup_arg *args) 21631da177e4SLinus Torvalds { 21641da177e4SLinus Torvalds struct compound_hdr hdr = { 216566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21661da177e4SLinus Torvalds }; 21671da177e4SLinus Torvalds 21689f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21699f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21709f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21719f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21729f06c719SChuck Lever encode_getfh(xdr, &hdr); 21739f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2174d017931cSAndy Adamson encode_nops(&hdr); 21751da177e4SLinus Torvalds } 21761da177e4SLinus Torvalds 21771da177e4SLinus Torvalds /* 21781da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21791da177e4SLinus Torvalds */ 21809f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21819f06c719SChuck Lever struct xdr_stream *xdr, 21829f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21831da177e4SLinus Torvalds { 21841da177e4SLinus Torvalds struct compound_hdr hdr = { 218566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21861da177e4SLinus Torvalds }; 21871da177e4SLinus Torvalds 21889f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21899f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21909f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21919f06c719SChuck Lever encode_getfh(xdr, &hdr); 21929f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2193d017931cSAndy Adamson encode_nops(&hdr); 21941da177e4SLinus Torvalds } 21951da177e4SLinus Torvalds 21961da177e4SLinus Torvalds /* 21971da177e4SLinus Torvalds * Encode REMOVE request 21981da177e4SLinus Torvalds */ 21999f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 22009f06c719SChuck Lever const struct nfs_removeargs *args) 22011da177e4SLinus Torvalds { 22021da177e4SLinus Torvalds struct compound_hdr hdr = { 220366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22041da177e4SLinus Torvalds }; 22051da177e4SLinus Torvalds 22069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22089f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22099f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 22109f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2211d017931cSAndy Adamson encode_nops(&hdr); 22121da177e4SLinus Torvalds } 22131da177e4SLinus Torvalds 22141da177e4SLinus Torvalds /* 22151da177e4SLinus Torvalds * Encode RENAME request 22161da177e4SLinus Torvalds */ 22179f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 22189f06c719SChuck Lever const struct nfs_renameargs *args) 22191da177e4SLinus Torvalds { 22201da177e4SLinus Torvalds struct compound_hdr hdr = { 222166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22221da177e4SLinus Torvalds }; 22231da177e4SLinus Torvalds 22249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22269f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 22279f06c719SChuck Lever encode_savefh(xdr, &hdr); 22289f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 22299f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 22309f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22319f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22329f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2233d017931cSAndy Adamson encode_nops(&hdr); 22341da177e4SLinus Torvalds } 22351da177e4SLinus Torvalds 22361da177e4SLinus Torvalds /* 22371da177e4SLinus Torvalds * Encode LINK request 22381da177e4SLinus Torvalds */ 22399f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 22409f06c719SChuck Lever const struct nfs4_link_arg *args) 22411da177e4SLinus Torvalds { 22421da177e4SLinus Torvalds struct compound_hdr hdr = { 224366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22441da177e4SLinus Torvalds }; 22451da177e4SLinus Torvalds 22469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22499f06c719SChuck Lever encode_savefh(xdr, &hdr); 22509f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22519f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 22529f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22539f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22549f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2255d017931cSAndy Adamson encode_nops(&hdr); 22561da177e4SLinus Torvalds } 22571da177e4SLinus Torvalds 22581da177e4SLinus Torvalds /* 22591da177e4SLinus Torvalds * Encode CREATE request 22601da177e4SLinus Torvalds */ 22619f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 22629f06c719SChuck Lever const struct nfs4_create_arg *args) 22631da177e4SLinus Torvalds { 22641da177e4SLinus Torvalds struct compound_hdr hdr = { 226566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22661da177e4SLinus Torvalds }; 22671da177e4SLinus Torvalds 22689f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22699f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22709f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22719f06c719SChuck Lever encode_savefh(xdr, &hdr); 22729f06c719SChuck Lever encode_create(xdr, args, &hdr); 22739f06c719SChuck Lever encode_getfh(xdr, &hdr); 22749f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22759f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22769f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2277d017931cSAndy Adamson encode_nops(&hdr); 22781da177e4SLinus Torvalds } 22791da177e4SLinus Torvalds 22801da177e4SLinus Torvalds /* 22811da177e4SLinus Torvalds * Encode SYMLINK request 22821da177e4SLinus Torvalds */ 22839f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22849f06c719SChuck Lever const struct nfs4_create_arg *args) 22851da177e4SLinus Torvalds { 22869f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22871da177e4SLinus Torvalds } 22881da177e4SLinus Torvalds 22891da177e4SLinus Torvalds /* 22901da177e4SLinus Torvalds * Encode GETATTR request 22911da177e4SLinus Torvalds */ 22929f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22939f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22941da177e4SLinus Torvalds { 22951da177e4SLinus Torvalds struct compound_hdr hdr = { 229666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22971da177e4SLinus Torvalds }; 22981da177e4SLinus Torvalds 22999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23009f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23019f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23029f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2303d017931cSAndy Adamson encode_nops(&hdr); 23041da177e4SLinus Torvalds } 23051da177e4SLinus Torvalds 23061da177e4SLinus Torvalds /* 23071da177e4SLinus Torvalds * Encode a CLOSE request 23081da177e4SLinus Torvalds */ 23099f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 23109f06c719SChuck Lever struct nfs_closeargs *args) 23111da177e4SLinus Torvalds { 23121da177e4SLinus Torvalds struct compound_hdr hdr = { 231366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23141da177e4SLinus Torvalds }; 23151da177e4SLinus Torvalds 23169f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23179f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23189f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23199f06c719SChuck Lever encode_close(xdr, args, &hdr); 23209f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2321d017931cSAndy Adamson encode_nops(&hdr); 23221da177e4SLinus Torvalds } 23231da177e4SLinus Torvalds 23241da177e4SLinus Torvalds /* 23251da177e4SLinus Torvalds * Encode an OPEN request 23261da177e4SLinus Torvalds */ 23279f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 23289f06c719SChuck Lever struct nfs_openargs *args) 23291da177e4SLinus Torvalds { 23301da177e4SLinus Torvalds struct compound_hdr hdr = { 233166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23321da177e4SLinus Torvalds }; 23331da177e4SLinus Torvalds 23349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23359f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23369f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23379f06c719SChuck Lever encode_savefh(xdr, &hdr); 23389f06c719SChuck Lever encode_open(xdr, args, &hdr); 23399f06c719SChuck Lever encode_getfh(xdr, &hdr); 23409f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 23419f06c719SChuck Lever encode_restorefh(xdr, &hdr); 23426926afd1STrond Myklebust encode_getfattr(xdr, args->dir_bitmask, &hdr); 2343d017931cSAndy Adamson encode_nops(&hdr); 23441da177e4SLinus Torvalds } 23451da177e4SLinus Torvalds 23461da177e4SLinus Torvalds /* 23471da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 23481da177e4SLinus Torvalds */ 23499f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 23509f06c719SChuck Lever struct xdr_stream *xdr, 23519f06c719SChuck Lever struct nfs_open_confirmargs *args) 23521da177e4SLinus Torvalds { 23531da177e4SLinus Torvalds struct compound_hdr hdr = { 2354d017931cSAndy Adamson .nops = 0, 23551da177e4SLinus Torvalds }; 23561da177e4SLinus Torvalds 23579f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23589f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23599f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2360d017931cSAndy Adamson encode_nops(&hdr); 23611da177e4SLinus Torvalds } 23621da177e4SLinus Torvalds 23631da177e4SLinus Torvalds /* 23641da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23651da177e4SLinus Torvalds */ 23669f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23679f06c719SChuck Lever struct xdr_stream *xdr, 23689f06c719SChuck Lever struct nfs_openargs *args) 23691da177e4SLinus Torvalds { 23701da177e4SLinus Torvalds struct compound_hdr hdr = { 237166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23721da177e4SLinus Torvalds }; 23731da177e4SLinus Torvalds 23749f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23759f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23769f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23779f06c719SChuck Lever encode_open(xdr, args, &hdr); 23789f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2379d017931cSAndy Adamson encode_nops(&hdr); 23801da177e4SLinus Torvalds } 23811da177e4SLinus Torvalds 23821da177e4SLinus Torvalds /* 23831da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23841da177e4SLinus Torvalds */ 23859f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23869f06c719SChuck Lever struct xdr_stream *xdr, 23879f06c719SChuck Lever struct nfs_closeargs *args) 23881da177e4SLinus Torvalds { 23891da177e4SLinus Torvalds struct compound_hdr hdr = { 239066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23911da177e4SLinus Torvalds }; 23921da177e4SLinus Torvalds 23939f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23949f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23959f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23969f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 23979f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2398d017931cSAndy Adamson encode_nops(&hdr); 23991da177e4SLinus Torvalds } 24001da177e4SLinus Torvalds 24011da177e4SLinus Torvalds /* 24021da177e4SLinus Torvalds * Encode a LOCK request 24031da177e4SLinus Torvalds */ 24049f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 24059f06c719SChuck Lever struct nfs_lock_args *args) 24061da177e4SLinus Torvalds { 24071da177e4SLinus Torvalds struct compound_hdr hdr = { 240866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24091da177e4SLinus Torvalds }; 24101da177e4SLinus Torvalds 24119f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24129f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24139f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24149f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2415d017931cSAndy Adamson encode_nops(&hdr); 24161da177e4SLinus Torvalds } 24171da177e4SLinus Torvalds 24181da177e4SLinus Torvalds /* 24191da177e4SLinus Torvalds * Encode a LOCKT request 24201da177e4SLinus Torvalds */ 24219f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 24229f06c719SChuck Lever struct nfs_lockt_args *args) 24231da177e4SLinus Torvalds { 24241da177e4SLinus Torvalds struct compound_hdr hdr = { 242566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24261da177e4SLinus Torvalds }; 24271da177e4SLinus Torvalds 24289f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24299f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24309f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24319f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2432d017931cSAndy Adamson encode_nops(&hdr); 24331da177e4SLinus Torvalds } 24341da177e4SLinus Torvalds 24351da177e4SLinus Torvalds /* 24361da177e4SLinus Torvalds * Encode a LOCKU request 24371da177e4SLinus Torvalds */ 24389f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 24399f06c719SChuck Lever struct nfs_locku_args *args) 24401da177e4SLinus Torvalds { 24411da177e4SLinus Torvalds struct compound_hdr hdr = { 244266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24431da177e4SLinus Torvalds }; 24441da177e4SLinus Torvalds 24459f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24469f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24479f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24489f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2449d017931cSAndy Adamson encode_nops(&hdr); 24501da177e4SLinus Torvalds } 24511da177e4SLinus Torvalds 24529f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 24539f06c719SChuck Lever struct xdr_stream *xdr, 24549f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2455d3c7b7ccSTrond Myklebust { 2456d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2457d3c7b7ccSTrond Myklebust .minorversion = 0, 2458d3c7b7ccSTrond Myklebust }; 2459d3c7b7ccSTrond Myklebust 24609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24619f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2462d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2463d3c7b7ccSTrond Myklebust } 2464d3c7b7ccSTrond Myklebust 24651da177e4SLinus Torvalds /* 24661da177e4SLinus Torvalds * Encode a READLINK request 24671da177e4SLinus Torvalds */ 24689f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 24699f06c719SChuck Lever const struct nfs4_readlink *args) 24701da177e4SLinus Torvalds { 24711da177e4SLinus Torvalds struct compound_hdr hdr = { 247266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24731da177e4SLinus Torvalds }; 24741da177e4SLinus Torvalds 24759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24769f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24779f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24789f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2479e3a535e1STrond Myklebust 248028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2481e3a535e1STrond Myklebust args->pgbase, args->pglen); 2482d017931cSAndy Adamson encode_nops(&hdr); 24831da177e4SLinus Torvalds } 24841da177e4SLinus Torvalds 24851da177e4SLinus Torvalds /* 24861da177e4SLinus Torvalds * Encode a READDIR request 24871da177e4SLinus Torvalds */ 24889f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24899f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24901da177e4SLinus Torvalds { 24911da177e4SLinus Torvalds struct compound_hdr hdr = { 249266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24931da177e4SLinus Torvalds }; 24941da177e4SLinus Torvalds 24959f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24969f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24979f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24989f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2499d6ac02dfSTrond Myklebust 250028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2501d6ac02dfSTrond Myklebust args->pgbase, args->count); 2502d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 250328f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2504d6ac02dfSTrond Myklebust args->pgbase, args->count); 2505d017931cSAndy Adamson encode_nops(&hdr); 25061da177e4SLinus Torvalds } 25071da177e4SLinus Torvalds 25081da177e4SLinus Torvalds /* 25091da177e4SLinus Torvalds * Encode a READ request 25101da177e4SLinus Torvalds */ 25119f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 25129f06c719SChuck Lever struct nfs_readargs *args) 25131da177e4SLinus Torvalds { 25141da177e4SLinus Torvalds struct compound_hdr hdr = { 251566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25161da177e4SLinus Torvalds }; 25171da177e4SLinus Torvalds 25189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25209f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25219f06c719SChuck Lever encode_read(xdr, args, &hdr); 25221da177e4SLinus Torvalds 252328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 25241da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 25254f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2526d017931cSAndy Adamson encode_nops(&hdr); 25271da177e4SLinus Torvalds } 25281da177e4SLinus Torvalds 25291da177e4SLinus Torvalds /* 25301da177e4SLinus Torvalds * Encode an SETATTR request 25311da177e4SLinus Torvalds */ 25329f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 25339f06c719SChuck Lever struct nfs_setattrargs *args) 25341da177e4SLinus Torvalds { 25351da177e4SLinus Torvalds struct compound_hdr hdr = { 253666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25371da177e4SLinus Torvalds }; 25381da177e4SLinus Torvalds 25399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25409f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25419f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25429f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 25439f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2544d017931cSAndy Adamson encode_nops(&hdr); 25451da177e4SLinus Torvalds } 25461da177e4SLinus Torvalds 25471da177e4SLinus Torvalds /* 2548029d105eSJ. Bruce Fields * Encode a GETACL request 2549029d105eSJ. Bruce Fields */ 25509f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2551029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2552029d105eSJ. Bruce Fields { 2553029d105eSJ. Bruce Fields struct compound_hdr hdr = { 255466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2555029d105eSJ. Bruce Fields }; 255628f56694SBenny Halevy uint32_t replen; 2557029d105eSJ. Bruce Fields 25589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25609f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2561bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 25629f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2563cf8cdbe5SAndy Adamson 256428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2565029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2566bf118a34SAndy Adamson 2567d017931cSAndy Adamson encode_nops(&hdr); 2568029d105eSJ. Bruce Fields } 2569029d105eSJ. Bruce Fields 2570029d105eSJ. Bruce Fields /* 25711da177e4SLinus Torvalds * Encode a WRITE request 25721da177e4SLinus Torvalds */ 25739f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25749f06c719SChuck Lever struct nfs_writeargs *args) 25751da177e4SLinus Torvalds { 25761da177e4SLinus Torvalds struct compound_hdr hdr = { 257766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25781da177e4SLinus Torvalds }; 25791da177e4SLinus Torvalds 25809f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25819f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25829f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25839f06c719SChuck Lever encode_write(xdr, args, &hdr); 25844f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25857ffd1064SFred Isaman if (args->bitmask) 25869f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2587d017931cSAndy Adamson encode_nops(&hdr); 25881da177e4SLinus Torvalds } 25891da177e4SLinus Torvalds 25901da177e4SLinus Torvalds /* 25911da177e4SLinus Torvalds * a COMMIT request 25921da177e4SLinus Torvalds */ 25939f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25949f06c719SChuck Lever struct nfs_writeargs *args) 25951da177e4SLinus Torvalds { 25961da177e4SLinus Torvalds struct compound_hdr hdr = { 259766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25981da177e4SLinus Torvalds }; 25991da177e4SLinus Torvalds 26009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26039f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2604988b6dceSFred Isaman if (args->bitmask) 26059f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2606d017931cSAndy Adamson encode_nops(&hdr); 26071da177e4SLinus Torvalds } 26081da177e4SLinus Torvalds 26091da177e4SLinus Torvalds /* 26101da177e4SLinus Torvalds * FSINFO request 26111da177e4SLinus Torvalds */ 26129f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 26139f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 26141da177e4SLinus Torvalds { 26151da177e4SLinus Torvalds struct compound_hdr hdr = { 261666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26171da177e4SLinus Torvalds }; 26181da177e4SLinus Torvalds 26199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26209f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26219f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26229f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2623d017931cSAndy Adamson encode_nops(&hdr); 26241da177e4SLinus Torvalds } 26251da177e4SLinus Torvalds 26261da177e4SLinus Torvalds /* 26271da177e4SLinus Torvalds * a PATHCONF request 26281da177e4SLinus Torvalds */ 26299f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 26309f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 26311da177e4SLinus Torvalds { 26321da177e4SLinus Torvalds struct compound_hdr hdr = { 263366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26341da177e4SLinus Torvalds }; 26351da177e4SLinus Torvalds 26369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26379f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26389f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26399f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2640d017931cSAndy Adamson &hdr); 2641d017931cSAndy Adamson encode_nops(&hdr); 26421da177e4SLinus Torvalds } 26431da177e4SLinus Torvalds 26441da177e4SLinus Torvalds /* 26451da177e4SLinus Torvalds * a STATFS request 26461da177e4SLinus Torvalds */ 26479f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 26489f06c719SChuck Lever const struct nfs4_statfs_arg *args) 26491da177e4SLinus Torvalds { 26501da177e4SLinus Torvalds struct compound_hdr hdr = { 265166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26521da177e4SLinus Torvalds }; 26531da177e4SLinus Torvalds 26549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26559f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26569f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26579f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2658d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2659d017931cSAndy Adamson encode_nops(&hdr); 26601da177e4SLinus Torvalds } 26611da177e4SLinus Torvalds 26621da177e4SLinus Torvalds /* 26631da177e4SLinus Torvalds * GETATTR_BITMAP request 26641da177e4SLinus Torvalds */ 26659f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26669f06c719SChuck Lever struct xdr_stream *xdr, 266743652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 26681da177e4SLinus Torvalds { 26691da177e4SLinus Torvalds struct compound_hdr hdr = { 267066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26711da177e4SLinus Torvalds }; 26721da177e4SLinus Torvalds 26739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26749f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26759f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26769f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2677264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 26781da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 26791da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2680d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2681d017931cSAndy Adamson encode_nops(&hdr); 26821da177e4SLinus Torvalds } 26831da177e4SLinus Torvalds 26841da177e4SLinus Torvalds /* 26851da177e4SLinus Torvalds * a RENEW request 26861da177e4SLinus Torvalds */ 26879f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 26889f06c719SChuck Lever struct nfs_client *clp) 26891da177e4SLinus Torvalds { 26901da177e4SLinus Torvalds struct compound_hdr hdr = { 2691d017931cSAndy Adamson .nops = 0, 26921da177e4SLinus Torvalds }; 26931da177e4SLinus Torvalds 26949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2695bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2696d017931cSAndy Adamson encode_nops(&hdr); 26971da177e4SLinus Torvalds } 26981da177e4SLinus Torvalds 26991da177e4SLinus Torvalds /* 27001da177e4SLinus Torvalds * a SETCLIENTID request 27011da177e4SLinus Torvalds */ 27029f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 27039f06c719SChuck Lever struct xdr_stream *xdr, 27049f06c719SChuck Lever struct nfs4_setclientid *sc) 27051da177e4SLinus Torvalds { 27061da177e4SLinus Torvalds struct compound_hdr hdr = { 2707d017931cSAndy Adamson .nops = 0, 27081da177e4SLinus Torvalds }; 27091da177e4SLinus Torvalds 27109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27119f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2712d017931cSAndy Adamson encode_nops(&hdr); 27131da177e4SLinus Torvalds } 27141da177e4SLinus Torvalds 27151da177e4SLinus Torvalds /* 27161da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 27171da177e4SLinus Torvalds */ 27189f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 27199f06c719SChuck Lever struct xdr_stream *xdr, 27209f06c719SChuck Lever struct nfs4_setclientid_res *arg) 27211da177e4SLinus Torvalds { 27221da177e4SLinus Torvalds struct compound_hdr hdr = { 2723d017931cSAndy Adamson .nops = 0, 27241da177e4SLinus Torvalds }; 2725dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27261da177e4SLinus Torvalds 27279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27289f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 27299f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27309f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2731d017931cSAndy Adamson encode_nops(&hdr); 27321da177e4SLinus Torvalds } 27331da177e4SLinus Torvalds 27341da177e4SLinus Torvalds /* 27351da177e4SLinus Torvalds * DELEGRETURN request 27361da177e4SLinus Torvalds */ 27379f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 27389f06c719SChuck Lever struct xdr_stream *xdr, 27399f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 27401da177e4SLinus Torvalds { 27411da177e4SLinus Torvalds struct compound_hdr hdr = { 274266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27431da177e4SLinus Torvalds }; 27441da177e4SLinus Torvalds 27459f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27469f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27479f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 27489f06c719SChuck Lever encode_delegreturn(xdr, args->stateid, &hdr); 27499f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2750d017931cSAndy Adamson encode_nops(&hdr); 27511da177e4SLinus Torvalds } 27521da177e4SLinus Torvalds 27531da177e4SLinus Torvalds /* 2754683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2755683b57b4STrond Myklebust */ 27569f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 27579f06c719SChuck Lever struct xdr_stream *xdr, 27589f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2759683b57b4STrond Myklebust { 2760683b57b4STrond Myklebust struct compound_hdr hdr = { 276166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2762683b57b4STrond Myklebust }; 276328f56694SBenny Halevy uint32_t replen; 2764683b57b4STrond Myklebust 27659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27669f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27679f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27689f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 276928f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 27709f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2771cf8cdbe5SAndy Adamson 277228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2773683b57b4STrond Myklebust 0, PAGE_SIZE); 2774d017931cSAndy Adamson encode_nops(&hdr); 2775683b57b4STrond Myklebust } 2776683b57b4STrond Myklebust 27775a5ea0d4SBryan Schumaker /* 27785a5ea0d4SBryan Schumaker * Encode SECINFO request 27795a5ea0d4SBryan Schumaker */ 27805a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27815a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27825a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27835a5ea0d4SBryan Schumaker { 27845a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27855a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27865a5ea0d4SBryan Schumaker }; 27875a5ea0d4SBryan Schumaker 27885a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27895a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27905a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27915a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27925a5ea0d4SBryan Schumaker encode_nops(&hdr); 27935a5ea0d4SBryan Schumaker } 27945a5ea0d4SBryan Schumaker 279599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 279699fe60d0SBenny Halevy /* 279799fe60d0SBenny Halevy * EXCHANGE_ID request 279899fe60d0SBenny Halevy */ 27999f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 28009f06c719SChuck Lever struct xdr_stream *xdr, 280199fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 280299fe60d0SBenny Halevy { 280399fe60d0SBenny Halevy struct compound_hdr hdr = { 2804a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 280599fe60d0SBenny Halevy }; 280699fe60d0SBenny Halevy 28079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28089f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 280999fe60d0SBenny Halevy encode_nops(&hdr); 281099fe60d0SBenny Halevy } 28112050f0ccSAndy Adamson 28122050f0ccSAndy Adamson /* 2813fc931582SAndy Adamson * a CREATE_SESSION request 2814fc931582SAndy Adamson */ 28159f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 28169f06c719SChuck Lever struct xdr_stream *xdr, 2817fc931582SAndy Adamson struct nfs41_create_session_args *args) 2818fc931582SAndy Adamson { 2819fc931582SAndy Adamson struct compound_hdr hdr = { 2820a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2821fc931582SAndy Adamson }; 2822fc931582SAndy Adamson 28239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28249f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2825fc931582SAndy Adamson encode_nops(&hdr); 2826fc931582SAndy Adamson } 2827fc931582SAndy Adamson 2828fc931582SAndy Adamson /* 28290f3e66c6SAndy Adamson * a DESTROY_SESSION request 28300f3e66c6SAndy Adamson */ 28319f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 28329f06c719SChuck Lever struct xdr_stream *xdr, 28330f3e66c6SAndy Adamson struct nfs4_session *session) 28340f3e66c6SAndy Adamson { 28350f3e66c6SAndy Adamson struct compound_hdr hdr = { 2836a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28370f3e66c6SAndy Adamson }; 28380f3e66c6SAndy Adamson 28399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28409f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28410f3e66c6SAndy Adamson encode_nops(&hdr); 28420f3e66c6SAndy Adamson } 28430f3e66c6SAndy Adamson 28440f3e66c6SAndy Adamson /* 2845fc01cea9SAndy Adamson * a SEQUENCE request 2846fc01cea9SAndy Adamson */ 28479f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2848fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2849fc01cea9SAndy Adamson { 2850fc01cea9SAndy Adamson struct compound_hdr hdr = { 2851fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2852fc01cea9SAndy Adamson }; 2853fc01cea9SAndy Adamson 28549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28559f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2856fc01cea9SAndy Adamson encode_nops(&hdr); 2857fc01cea9SAndy Adamson } 2858fc01cea9SAndy Adamson 2859fc01cea9SAndy Adamson /* 28602050f0ccSAndy Adamson * a GET_LEASE_TIME request 28612050f0ccSAndy Adamson */ 28629f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28639f06c719SChuck Lever struct xdr_stream *xdr, 28642050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28652050f0ccSAndy Adamson { 28662050f0ccSAndy Adamson struct compound_hdr hdr = { 28672050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28682050f0ccSAndy Adamson }; 2869dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28702050f0ccSAndy Adamson 28719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28729f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28739f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28749f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28752050f0ccSAndy Adamson encode_nops(&hdr); 28762050f0ccSAndy Adamson } 287718019753SRicardo Labiaga 287818019753SRicardo Labiaga /* 287918019753SRicardo Labiaga * a RECLAIM_COMPLETE request 288018019753SRicardo Labiaga */ 28819f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28829f06c719SChuck Lever struct xdr_stream *xdr, 288318019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 288418019753SRicardo Labiaga { 288518019753SRicardo Labiaga struct compound_hdr hdr = { 288618019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 288718019753SRicardo Labiaga }; 288818019753SRicardo Labiaga 28899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28919f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 289218019753SRicardo Labiaga encode_nops(&hdr); 289318019753SRicardo Labiaga } 289418019753SRicardo Labiaga 2895b1f69b75SAndy Adamson /* 28967f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28977f11d8d3SAndy Adamson */ 28987f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28997f11d8d3SAndy Adamson struct xdr_stream *xdr, 29007f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 29017f11d8d3SAndy Adamson { 29027f11d8d3SAndy Adamson struct compound_hdr hdr = { 29037f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29047f11d8d3SAndy Adamson }; 29057f11d8d3SAndy Adamson 29067f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 29077f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 29087f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 29097f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 29107f11d8d3SAndy Adamson encode_nops(&hdr); 29117f11d8d3SAndy Adamson } 29127f11d8d3SAndy Adamson 29137f11d8d3SAndy Adamson /* 2914b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2915b1f69b75SAndy Adamson */ 29169f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 29179f06c719SChuck Lever struct xdr_stream *xdr, 2918b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2919b1f69b75SAndy Adamson { 2920b1f69b75SAndy Adamson struct compound_hdr hdr = { 2921b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2922b1f69b75SAndy Adamson }; 2923b1f69b75SAndy Adamson 29249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29269f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2927b1f69b75SAndy Adamson 2928b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2929b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2930b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2931b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2932b1f69b75SAndy Adamson args->pdev->pglen); 2933b1f69b75SAndy Adamson 2934b1f69b75SAndy Adamson encode_nops(&hdr); 2935b1f69b75SAndy Adamson } 2936b1f69b75SAndy Adamson 2937b1f69b75SAndy Adamson /* 2938b1f69b75SAndy Adamson * Encode LAYOUTGET request 2939b1f69b75SAndy Adamson */ 29409f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29419f06c719SChuck Lever struct xdr_stream *xdr, 2942b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2943b1f69b75SAndy Adamson { 2944b1f69b75SAndy Adamson struct compound_hdr hdr = { 2945b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2946b1f69b75SAndy Adamson }; 2947b1f69b75SAndy Adamson 29489f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29499f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29509f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29519f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 295235124a09SWeston Andros Adamson 295335124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 295435124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 295535124a09SWeston Andros Adamson 2956b1f69b75SAndy Adamson encode_nops(&hdr); 2957b1f69b75SAndy Adamson } 2958863a3c6cSAndy Adamson 2959863a3c6cSAndy Adamson /* 2960863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2961863a3c6cSAndy Adamson */ 2962cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2963863a3c6cSAndy Adamson struct xdr_stream *xdr, 2964863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2965863a3c6cSAndy Adamson { 2966ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2967ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2968863a3c6cSAndy Adamson struct compound_hdr hdr = { 2969863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2970863a3c6cSAndy Adamson }; 2971863a3c6cSAndy Adamson 2972863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2973863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2974863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2975ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2976863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2977863a3c6cSAndy Adamson encode_nops(&hdr); 2978cbe82603SBenny Halevy } 2979cbe82603SBenny Halevy 2980cbe82603SBenny Halevy /* 2981cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2982cbe82603SBenny Halevy */ 2983cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2984cbe82603SBenny Halevy struct xdr_stream *xdr, 2985cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2986cbe82603SBenny Halevy { 2987cbe82603SBenny Halevy struct compound_hdr hdr = { 2988cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2989cbe82603SBenny Halevy }; 2990cbe82603SBenny Halevy 2991cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2992cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2993cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2994cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2995cbe82603SBenny Halevy encode_nops(&hdr); 2996863a3c6cSAndy Adamson } 2997fca78d6dSBryan Schumaker 2998fca78d6dSBryan Schumaker /* 2999fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 3000fca78d6dSBryan Schumaker */ 3001fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 3002fca78d6dSBryan Schumaker struct xdr_stream *xdr, 3003fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 3004fca78d6dSBryan Schumaker { 3005fca78d6dSBryan Schumaker struct compound_hdr hdr = { 3006fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3007fca78d6dSBryan Schumaker }; 3008fca78d6dSBryan Schumaker 3009fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 3010fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 3011fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 3012fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 3013fca78d6dSBryan Schumaker encode_nops(&hdr); 3014fca78d6dSBryan Schumaker return 0; 3015fca78d6dSBryan Schumaker } 30167d974794SBryan Schumaker 30177d974794SBryan Schumaker /* 30187d974794SBryan Schumaker * Encode TEST_STATEID request 30197d974794SBryan Schumaker */ 30207d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 30217d974794SBryan Schumaker struct xdr_stream *xdr, 30227d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 30237d974794SBryan Schumaker { 30247d974794SBryan Schumaker struct compound_hdr hdr = { 30257d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30267d974794SBryan Schumaker }; 30277d974794SBryan Schumaker 30287d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30297d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30307d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 30317d974794SBryan Schumaker encode_nops(&hdr); 30327d974794SBryan Schumaker } 30339aeda35fSBryan Schumaker 30349aeda35fSBryan Schumaker /* 30359aeda35fSBryan Schumaker * Encode FREE_STATEID request 30369aeda35fSBryan Schumaker */ 30379aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30389aeda35fSBryan Schumaker struct xdr_stream *xdr, 30399aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 30409aeda35fSBryan Schumaker { 30419aeda35fSBryan Schumaker struct compound_hdr hdr = { 30429aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30439aeda35fSBryan Schumaker }; 30449aeda35fSBryan Schumaker 30459aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30469aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30479aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30489aeda35fSBryan Schumaker encode_nops(&hdr); 30499aeda35fSBryan Schumaker } 305099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 305199fe60d0SBenny Halevy 3052686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3053686841b3SBenny Halevy { 3054686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3055686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3056686841b3SBenny Halevy func, xdr->end - xdr->p); 3057686841b3SBenny Halevy } 30581da177e4SLinus Torvalds 3059683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30601da177e4SLinus Torvalds { 30618687b63aSAl Viro __be32 *p; 30621da177e4SLinus Torvalds 3063c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3064c0eae66eSBenny Halevy if (unlikely(!p)) 3065c0eae66eSBenny Halevy goto out_overflow; 3066cccddf4fSBenny Halevy *len = be32_to_cpup(p); 3067c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 3068c0eae66eSBenny Halevy if (unlikely(!p)) 3069c0eae66eSBenny Halevy goto out_overflow; 30701da177e4SLinus Torvalds *string = (char *)p; 30711da177e4SLinus Torvalds return 0; 3072c0eae66eSBenny Halevy out_overflow: 3073c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3074c0eae66eSBenny Halevy return -EIO; 30751da177e4SLinus Torvalds } 30761da177e4SLinus Torvalds 30771da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30781da177e4SLinus Torvalds { 30798687b63aSAl Viro __be32 *p; 30801da177e4SLinus Torvalds 3081c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3082c0eae66eSBenny Halevy if (unlikely(!p)) 3083c0eae66eSBenny Halevy goto out_overflow; 30846f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3085cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30861da177e4SLinus Torvalds 3087c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3088c0eae66eSBenny Halevy if (unlikely(!p)) 3089c0eae66eSBenny Halevy goto out_overflow; 30901da177e4SLinus Torvalds hdr->tag = (char *)p; 30911da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3092cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3093aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3094aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30951da177e4SLinus Torvalds return 0; 3096c0eae66eSBenny Halevy out_overflow: 3097c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3098c0eae66eSBenny Halevy return -EIO; 30991da177e4SLinus Torvalds } 31001da177e4SLinus Torvalds 31011da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 31021da177e4SLinus Torvalds { 31038687b63aSAl Viro __be32 *p; 31041da177e4SLinus Torvalds uint32_t opnum; 31051da177e4SLinus Torvalds int32_t nfserr; 31061da177e4SLinus Torvalds 3107c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3108c0eae66eSBenny Halevy if (unlikely(!p)) 3109c0eae66eSBenny Halevy goto out_overflow; 31106f723f77SBenny Halevy opnum = be32_to_cpup(p++); 31111da177e4SLinus Torvalds if (opnum != expected) { 3112fe82a183SChuck Lever dprintk("nfs: Server returned operation" 31131da177e4SLinus Torvalds " %d but we issued a request for %d\n", 31141da177e4SLinus Torvalds opnum, expected); 31151da177e4SLinus Torvalds return -EIO; 31161da177e4SLinus Torvalds } 3117cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 31181da177e4SLinus Torvalds if (nfserr != NFS_OK) 3119856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 31201da177e4SLinus Torvalds return 0; 3121c0eae66eSBenny Halevy out_overflow: 3122c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3123c0eae66eSBenny Halevy return -EIO; 31241da177e4SLinus Torvalds } 31251da177e4SLinus Torvalds 31261da177e4SLinus Torvalds /* Dummy routine */ 3127adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 31281da177e4SLinus Torvalds { 31298687b63aSAl Viro __be32 *p; 3130683b57b4STrond Myklebust unsigned int strlen; 31311da177e4SLinus Torvalds char *str; 31321da177e4SLinus Torvalds 3133c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3134c0eae66eSBenny Halevy if (likely(p)) 31351da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3136c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3137c0eae66eSBenny Halevy return -EIO; 31381da177e4SLinus Torvalds } 31391da177e4SLinus Torvalds 31401da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31411da177e4SLinus Torvalds { 31428687b63aSAl Viro uint32_t bmlen; 31438687b63aSAl Viro __be32 *p; 31441da177e4SLinus Torvalds 3145c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3146c0eae66eSBenny Halevy if (unlikely(!p)) 3147c0eae66eSBenny Halevy goto out_overflow; 3148cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31491da177e4SLinus Torvalds 3150dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3151c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3152c0eae66eSBenny Halevy if (unlikely(!p)) 3153c0eae66eSBenny Halevy goto out_overflow; 31541da177e4SLinus Torvalds if (bmlen > 0) { 31556f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3156dae100c2SFred Isaman if (bmlen > 1) { 3157dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3158dae100c2SFred Isaman if (bmlen > 2) 3159dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3160dae100c2SFred Isaman } 31611da177e4SLinus Torvalds } 31621da177e4SLinus Torvalds return 0; 3163c0eae66eSBenny Halevy out_overflow: 3164c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3165c0eae66eSBenny Halevy return -EIO; 31661da177e4SLinus Torvalds } 31671da177e4SLinus Torvalds 31688687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 31691da177e4SLinus Torvalds { 31708687b63aSAl Viro __be32 *p; 31711da177e4SLinus Torvalds 3172c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3173c0eae66eSBenny Halevy if (unlikely(!p)) 3174c0eae66eSBenny Halevy goto out_overflow; 3175cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 31761da177e4SLinus Torvalds *savep = xdr->p; 31771da177e4SLinus Torvalds return 0; 3178c0eae66eSBenny Halevy out_overflow: 3179c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3180c0eae66eSBenny Halevy return -EIO; 31811da177e4SLinus Torvalds } 31821da177e4SLinus Torvalds 31831da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31841da177e4SLinus Torvalds { 31851da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31863388bff5SRoman Borisov int ret; 31873388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31883388bff5SRoman Borisov if (unlikely(ret < 0)) 31893388bff5SRoman Borisov return ret; 31901da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31911da177e4SLinus Torvalds } else 3192dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3193dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3194dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31951da177e4SLinus Torvalds return 0; 31961da177e4SLinus Torvalds } 31971da177e4SLinus Torvalds 31981da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31991da177e4SLinus Torvalds { 32008687b63aSAl Viro __be32 *p; 3201409924e4STrond Myklebust int ret = 0; 32021da177e4SLinus Torvalds 32031da177e4SLinus Torvalds *type = 0; 32041da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 32051da177e4SLinus Torvalds return -EIO; 32061da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3207c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3208c0eae66eSBenny Halevy if (unlikely(!p)) 3209c0eae66eSBenny Halevy goto out_overflow; 3210cccddf4fSBenny Halevy *type = be32_to_cpup(p); 32111da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 32123110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 32131da177e4SLinus Torvalds return -EIO; 32141da177e4SLinus Torvalds } 32151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3216409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32171da177e4SLinus Torvalds } 3218bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3219409924e4STrond Myklebust return ret; 3220c0eae66eSBenny Halevy out_overflow: 3221c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3222c0eae66eSBenny Halevy return -EIO; 32231da177e4SLinus Torvalds } 32241da177e4SLinus Torvalds 3225264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3226264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3227264e6351SChuck Lever { 3228264e6351SChuck Lever __be32 *p; 3229264e6351SChuck Lever 3230264e6351SChuck Lever *type = 0; 3231264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3232264e6351SChuck Lever return -EIO; 3233264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3234264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3235264e6351SChuck Lever if (unlikely(!p)) 3236264e6351SChuck Lever goto out_overflow; 3237264e6351SChuck Lever *type = be32_to_cpup(p); 3238264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3239264e6351SChuck Lever } 3240264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3241264e6351SChuck Lever return 0; 3242264e6351SChuck Lever out_overflow: 3243264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3244264e6351SChuck Lever return -EIO; 3245264e6351SChuck Lever } 3246264e6351SChuck Lever 32471da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 32481da177e4SLinus Torvalds { 32498687b63aSAl Viro __be32 *p; 3250409924e4STrond Myklebust int ret = 0; 32511da177e4SLinus Torvalds 32521da177e4SLinus Torvalds *change = 0; 32531da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 32541da177e4SLinus Torvalds return -EIO; 32551da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3256c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3257c0eae66eSBenny Halevy if (unlikely(!p)) 3258c0eae66eSBenny Halevy goto out_overflow; 3259cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 32601da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3261409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 32621da177e4SLinus Torvalds } 32633110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32641da177e4SLinus Torvalds (unsigned long long)*change); 3265409924e4STrond Myklebust return ret; 3266c0eae66eSBenny Halevy out_overflow: 3267c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3268c0eae66eSBenny Halevy return -EIO; 32691da177e4SLinus Torvalds } 32701da177e4SLinus Torvalds 32711da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32721da177e4SLinus Torvalds { 32738687b63aSAl Viro __be32 *p; 3274409924e4STrond Myklebust int ret = 0; 32751da177e4SLinus Torvalds 32761da177e4SLinus Torvalds *size = 0; 32771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32781da177e4SLinus Torvalds return -EIO; 32791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3280c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3281c0eae66eSBenny Halevy if (unlikely(!p)) 3282c0eae66eSBenny Halevy goto out_overflow; 3283cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3285409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32861da177e4SLinus Torvalds } 32873110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3288409924e4STrond Myklebust return ret; 3289c0eae66eSBenny Halevy out_overflow: 3290c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3291c0eae66eSBenny Halevy return -EIO; 32921da177e4SLinus Torvalds } 32931da177e4SLinus Torvalds 32941da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32951da177e4SLinus Torvalds { 32968687b63aSAl Viro __be32 *p; 32971da177e4SLinus Torvalds 32981da177e4SLinus Torvalds *res = 0; 32991da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 33001da177e4SLinus Torvalds return -EIO; 33011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3302c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3303c0eae66eSBenny Halevy if (unlikely(!p)) 3304c0eae66eSBenny Halevy goto out_overflow; 3305cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33061da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 33071da177e4SLinus Torvalds } 33083110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 33091da177e4SLinus Torvalds return 0; 3310c0eae66eSBenny Halevy out_overflow: 3311c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3312c0eae66eSBenny Halevy return -EIO; 33131da177e4SLinus Torvalds } 33141da177e4SLinus Torvalds 33151da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33161da177e4SLinus Torvalds { 33178687b63aSAl Viro __be32 *p; 33181da177e4SLinus Torvalds 33191da177e4SLinus Torvalds *res = 0; 33201da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 33211da177e4SLinus Torvalds return -EIO; 33221da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3323c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3324c0eae66eSBenny Halevy if (unlikely(!p)) 3325c0eae66eSBenny Halevy goto out_overflow; 3326cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33281da177e4SLinus Torvalds } 33293110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33301da177e4SLinus Torvalds return 0; 3331c0eae66eSBenny Halevy out_overflow: 3332c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3333c0eae66eSBenny Halevy return -EIO; 33341da177e4SLinus Torvalds } 33351da177e4SLinus Torvalds 33368b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 33371da177e4SLinus Torvalds { 33388687b63aSAl Viro __be32 *p; 3339409924e4STrond Myklebust int ret = 0; 33401da177e4SLinus Torvalds 33411da177e4SLinus Torvalds fsid->major = 0; 33421da177e4SLinus Torvalds fsid->minor = 0; 33431da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 33441da177e4SLinus Torvalds return -EIO; 33451da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3346c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3347c0eae66eSBenny Halevy if (unlikely(!p)) 3348c0eae66eSBenny Halevy goto out_overflow; 33493ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3350cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 33511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3352409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 33531da177e4SLinus Torvalds } 33543110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 33551da177e4SLinus Torvalds (unsigned long long)fsid->major, 33561da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3357409924e4STrond Myklebust return ret; 3358c0eae66eSBenny Halevy out_overflow: 3359c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3360c0eae66eSBenny Halevy return -EIO; 33611da177e4SLinus Torvalds } 33621da177e4SLinus Torvalds 33631da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33641da177e4SLinus Torvalds { 33658687b63aSAl Viro __be32 *p; 33661da177e4SLinus Torvalds 33671da177e4SLinus Torvalds *res = 60; 33681da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33691da177e4SLinus Torvalds return -EIO; 33701da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3371c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3372c0eae66eSBenny Halevy if (unlikely(!p)) 3373c0eae66eSBenny Halevy goto out_overflow; 3374cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 33761da177e4SLinus Torvalds } 33773110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33781da177e4SLinus Torvalds return 0; 3379c0eae66eSBenny Halevy out_overflow: 3380c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3381c0eae66eSBenny Halevy return -EIO; 33821da177e4SLinus Torvalds } 33831da177e4SLinus Torvalds 3384ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3385ae42c70aSBryan Schumaker { 3386ae42c70aSBryan Schumaker __be32 *p; 3387ae42c70aSBryan Schumaker 3388ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3389ae42c70aSBryan Schumaker return -EIO; 3390ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3391ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3392ae42c70aSBryan Schumaker if (unlikely(!p)) 3393ae42c70aSBryan Schumaker goto out_overflow; 3394ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3395ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3396ae42c70aSBryan Schumaker } 3397ae42c70aSBryan Schumaker return 0; 3398ae42c70aSBryan Schumaker out_overflow: 3399ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3400ae42c70aSBryan Schumaker return -EIO; 3401ae42c70aSBryan Schumaker } 3402ae42c70aSBryan Schumaker 3403ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3404ae42c70aSBryan Schumaker { 3405ae42c70aSBryan Schumaker __be32 *p; 3406ae42c70aSBryan Schumaker int len; 3407ae42c70aSBryan Schumaker 34087ad07353STrond Myklebust if (fh != NULL) 3409ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3410ae42c70aSBryan Schumaker 3411ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3412ae42c70aSBryan Schumaker return -EIO; 3413ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3414ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3415ae42c70aSBryan Schumaker if (unlikely(!p)) 3416ae42c70aSBryan Schumaker goto out_overflow; 3417ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3418ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3419ae42c70aSBryan Schumaker return -EIO; 3420ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3421ae42c70aSBryan Schumaker if (unlikely(!p)) 3422ae42c70aSBryan Schumaker goto out_overflow; 34237ad07353STrond Myklebust if (fh != NULL) { 3424ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 34257ad07353STrond Myklebust fh->size = len; 34267ad07353STrond Myklebust } 3427ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3428ae42c70aSBryan Schumaker } 3429ae42c70aSBryan Schumaker return 0; 3430ae42c70aSBryan Schumaker out_overflow: 3431ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3432ae42c70aSBryan Schumaker return -EIO; 3433ae42c70aSBryan Schumaker } 3434ae42c70aSBryan Schumaker 34351da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34361da177e4SLinus Torvalds { 34378687b63aSAl Viro __be32 *p; 34381da177e4SLinus Torvalds 34391da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 34401da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 34411da177e4SLinus Torvalds return -EIO; 34421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3443c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3444c0eae66eSBenny Halevy if (unlikely(!p)) 3445c0eae66eSBenny Halevy goto out_overflow; 3446cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 34481da177e4SLinus Torvalds } 34493110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 34501da177e4SLinus Torvalds return 0; 3451c0eae66eSBenny Halevy out_overflow: 3452c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3453c0eae66eSBenny Halevy return -EIO; 34541da177e4SLinus Torvalds } 34551da177e4SLinus Torvalds 34561da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 34571da177e4SLinus Torvalds { 34588687b63aSAl Viro __be32 *p; 3459409924e4STrond Myklebust int ret = 0; 34601da177e4SLinus Torvalds 34611da177e4SLinus Torvalds *fileid = 0; 34621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34631da177e4SLinus Torvalds return -EIO; 34641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3465c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3466c0eae66eSBenny Halevy if (unlikely(!p)) 3467c0eae66eSBenny Halevy goto out_overflow; 3468cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34691da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3470409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34711da177e4SLinus Torvalds } 34723110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3473409924e4STrond Myklebust return ret; 3474c0eae66eSBenny Halevy out_overflow: 3475c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3476c0eae66eSBenny Halevy return -EIO; 34771da177e4SLinus Torvalds } 34781da177e4SLinus Torvalds 347999baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 348099baf625SManoj Naik { 34818687b63aSAl Viro __be32 *p; 3482409924e4STrond Myklebust int ret = 0; 348399baf625SManoj Naik 348499baf625SManoj Naik *fileid = 0; 348599baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 348699baf625SManoj Naik return -EIO; 348799baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3488c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3489c0eae66eSBenny Halevy if (unlikely(!p)) 3490c0eae66eSBenny Halevy goto out_overflow; 3491cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 349299baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 349328331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 349499baf625SManoj Naik } 34953110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3496409924e4STrond Myklebust return ret; 3497c0eae66eSBenny Halevy out_overflow: 3498c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3499c0eae66eSBenny Halevy return -EIO; 350099baf625SManoj Naik } 350199baf625SManoj Naik 35021da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35031da177e4SLinus Torvalds { 35048687b63aSAl Viro __be32 *p; 35051da177e4SLinus Torvalds int status = 0; 35061da177e4SLinus Torvalds 35071da177e4SLinus Torvalds *res = 0; 35081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 35091da177e4SLinus Torvalds return -EIO; 35101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3511c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3512c0eae66eSBenny Halevy if (unlikely(!p)) 3513c0eae66eSBenny Halevy goto out_overflow; 3514cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 35161da177e4SLinus Torvalds } 35173110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 35181da177e4SLinus Torvalds return status; 3519c0eae66eSBenny Halevy out_overflow: 3520c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3521c0eae66eSBenny Halevy return -EIO; 35221da177e4SLinus Torvalds } 35231da177e4SLinus Torvalds 35241da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35251da177e4SLinus Torvalds { 35268687b63aSAl Viro __be32 *p; 35271da177e4SLinus Torvalds int status = 0; 35281da177e4SLinus Torvalds 35291da177e4SLinus Torvalds *res = 0; 35301da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35311da177e4SLinus Torvalds return -EIO; 35321da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3533c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3534c0eae66eSBenny Halevy if (unlikely(!p)) 3535c0eae66eSBenny Halevy goto out_overflow; 3536cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35381da177e4SLinus Torvalds } 35393110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35401da177e4SLinus Torvalds return status; 3541c0eae66eSBenny Halevy out_overflow: 3542c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3543c0eae66eSBenny Halevy return -EIO; 35441da177e4SLinus Torvalds } 35451da177e4SLinus Torvalds 35461da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35471da177e4SLinus Torvalds { 35488687b63aSAl Viro __be32 *p; 35491da177e4SLinus Torvalds int status = 0; 35501da177e4SLinus Torvalds 35511da177e4SLinus Torvalds *res = 0; 35521da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 35531da177e4SLinus Torvalds return -EIO; 35541da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3555c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3556c0eae66eSBenny Halevy if (unlikely(!p)) 3557c0eae66eSBenny Halevy goto out_overflow; 3558cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35591da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 35601da177e4SLinus Torvalds } 35613110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 35621da177e4SLinus Torvalds return status; 3563c0eae66eSBenny Halevy out_overflow: 3564c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3565c0eae66eSBenny Halevy return -EIO; 35661da177e4SLinus Torvalds } 35671da177e4SLinus Torvalds 35687aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35697aaa0b3bSManoj Naik { 3570464ad6b1SChuck Lever u32 n; 35718687b63aSAl Viro __be32 *p; 35727aaa0b3bSManoj Naik int status = 0; 35737aaa0b3bSManoj Naik 3574c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3575c0eae66eSBenny Halevy if (unlikely(!p)) 3576c0eae66eSBenny Halevy goto out_overflow; 3577cccddf4fSBenny Halevy n = be32_to_cpup(p); 357833a43f28SAndy Adamson if (n == 0) 357933a43f28SAndy Adamson goto root_path; 358002a2976cSChuck Lever dprintk("pathname4: "); 35817aaa0b3bSManoj Naik path->ncomponents = 0; 35827aaa0b3bSManoj Naik while (path->ncomponents < n) { 35837aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35847aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35857aaa0b3bSManoj Naik if (unlikely(status != 0)) 35867aaa0b3bSManoj Naik goto out_eio; 358702a2976cSChuck Lever if (unlikely(nfs_debug & NFSDBG_XDR)) 358802a2976cSChuck Lever pr_cont("%s%.*s ", 358902a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 359002a2976cSChuck Lever component->len, component->data); 35917aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 35927aaa0b3bSManoj Naik path->ncomponents++; 35937aaa0b3bSManoj Naik else { 35947aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 35957aaa0b3bSManoj Naik goto out_eio; 35967aaa0b3bSManoj Naik } 35977aaa0b3bSManoj Naik } 35987aaa0b3bSManoj Naik out: 35997aaa0b3bSManoj Naik return status; 360033a43f28SAndy Adamson root_path: 360133a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 360233a43f28SAndy Adamson path->ncomponents = 1; 360333a43f28SAndy Adamson path->components[0].len=0; 360433a43f28SAndy Adamson path->components[0].data=NULL; 360502a2976cSChuck Lever dprintk("pathname4: /\n"); 360633a43f28SAndy Adamson goto out; 36077aaa0b3bSManoj Naik out_eio: 36087aaa0b3bSManoj Naik dprintk(" status %d", status); 36097aaa0b3bSManoj Naik status = -EIO; 36107aaa0b3bSManoj Naik goto out; 3611c0eae66eSBenny Halevy out_overflow: 3612c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3613c0eae66eSBenny Halevy return -EIO; 36147aaa0b3bSManoj Naik } 36157aaa0b3bSManoj Naik 36167aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3617683b57b4STrond Myklebust { 3618683b57b4STrond Myklebust int n; 36198687b63aSAl Viro __be32 *p; 3620683b57b4STrond Myklebust int status = -EIO; 3621683b57b4STrond Myklebust 3622683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3623683b57b4STrond Myklebust goto out; 3624683b57b4STrond Myklebust status = 0; 3625683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3626683b57b4STrond Myklebust goto out; 36278b7e3f49STrond Myklebust status = -EIO; 36288b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36298b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36308b7e3f49STrond Myklebust goto out; 363102a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 36327aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3633683b57b4STrond Myklebust if (unlikely(status != 0)) 3634683b57b4STrond Myklebust goto out; 3635c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3636c0eae66eSBenny Halevy if (unlikely(!p)) 3637c0eae66eSBenny Halevy goto out_overflow; 3638cccddf4fSBenny Halevy n = be32_to_cpup(p); 3639683b57b4STrond Myklebust if (n <= 0) 3640683b57b4STrond Myklebust goto out_eio; 3641683b57b4STrond Myklebust res->nlocations = 0; 3642683b57b4STrond Myklebust while (res->nlocations < n) { 3643464ad6b1SChuck Lever u32 m; 36447aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3645683b57b4STrond Myklebust 3646c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3647c0eae66eSBenny Halevy if (unlikely(!p)) 3648c0eae66eSBenny Halevy goto out_overflow; 3649cccddf4fSBenny Halevy m = be32_to_cpup(p); 36507aaa0b3bSManoj Naik 36517aaa0b3bSManoj Naik loc->nservers = 0; 365202a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 36537aaa0b3bSManoj Naik while (loc->nservers < m) { 36547aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 36557aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3656683b57b4STrond Myklebust if (unlikely(status != 0)) 3657683b57b4STrond Myklebust goto out_eio; 36587aaa0b3bSManoj Naik dprintk("%s ", server->data); 36597aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 36607aaa0b3bSManoj Naik loc->nservers++; 36617aaa0b3bSManoj Naik else { 3662464ad6b1SChuck Lever unsigned int i; 3663464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3664464ad6b1SChuck Lever "returned for location %u\n", 36653110ff80SHarvey Harrison __func__, 3666464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3667464ad6b1SChuck Lever m, res->nlocations); 36687aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36692e42c3e2STrond Myklebust unsigned int len; 36707aaa0b3bSManoj Naik char *data; 36717aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3672683b57b4STrond Myklebust if (unlikely(status != 0)) 3673683b57b4STrond Myklebust goto out_eio; 36747aaa0b3bSManoj Naik } 36757aaa0b3bSManoj Naik } 36767aaa0b3bSManoj Naik } 36777aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36787aaa0b3bSManoj Naik if (unlikely(status != 0)) 36797aaa0b3bSManoj Naik goto out_eio; 36807aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3681683b57b4STrond Myklebust res->nlocations++; 3682683b57b4STrond Myklebust } 3683409924e4STrond Myklebust if (res->nlocations != 0) 368481934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3685683b57b4STrond Myklebust out: 36863110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3687683b57b4STrond Myklebust return status; 3688c0eae66eSBenny Halevy out_overflow: 3689c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3690683b57b4STrond Myklebust out_eio: 3691683b57b4STrond Myklebust status = -EIO; 3692683b57b4STrond Myklebust goto out; 3693683b57b4STrond Myklebust } 3694683b57b4STrond Myklebust 36951da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36961da177e4SLinus Torvalds { 36978687b63aSAl Viro __be32 *p; 36981da177e4SLinus Torvalds int status = 0; 36991da177e4SLinus Torvalds 37001da177e4SLinus Torvalds *res = 0; 37011da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 37021da177e4SLinus Torvalds return -EIO; 37031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3704c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3705c0eae66eSBenny Halevy if (unlikely(!p)) 3706c0eae66eSBenny Halevy goto out_overflow; 3707cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 37081da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 37091da177e4SLinus Torvalds } 37103110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 37111da177e4SLinus Torvalds return status; 3712c0eae66eSBenny Halevy out_overflow: 3713c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3714c0eae66eSBenny Halevy return -EIO; 37151da177e4SLinus Torvalds } 37161da177e4SLinus Torvalds 37171da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 37181da177e4SLinus Torvalds { 37198687b63aSAl Viro __be32 *p; 37201da177e4SLinus Torvalds int status = 0; 37211da177e4SLinus Torvalds 37221da177e4SLinus Torvalds *maxlink = 1; 37231da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 37241da177e4SLinus Torvalds return -EIO; 37251da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3726c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3727c0eae66eSBenny Halevy if (unlikely(!p)) 3728c0eae66eSBenny Halevy goto out_overflow; 3729cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37301da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37311da177e4SLinus Torvalds } 37323110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37331da177e4SLinus Torvalds return status; 3734c0eae66eSBenny Halevy out_overflow: 3735c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3736c0eae66eSBenny Halevy return -EIO; 37371da177e4SLinus Torvalds } 37381da177e4SLinus Torvalds 37391da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37401da177e4SLinus Torvalds { 37418687b63aSAl Viro __be32 *p; 37421da177e4SLinus Torvalds int status = 0; 37431da177e4SLinus Torvalds 37441da177e4SLinus Torvalds *maxname = 1024; 37451da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37461da177e4SLinus Torvalds return -EIO; 37471da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3748c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3749c0eae66eSBenny Halevy if (unlikely(!p)) 3750c0eae66eSBenny Halevy goto out_overflow; 3751cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37521da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37531da177e4SLinus Torvalds } 37543110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 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_maxread(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_MAXREAD - 1U))) 37681da177e4SLinus Torvalds return -EIO; 37691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37701da177e4SLinus Torvalds uint64_t maxread; 3771c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3772c0eae66eSBenny Halevy if (unlikely(!p)) 3773c0eae66eSBenny Halevy goto out_overflow; 3774cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37751da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37761da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37771da177e4SLinus Torvalds *res = (uint32_t)maxread; 37781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37791da177e4SLinus Torvalds } 37803110ff80SHarvey Harrison dprintk("%s: maxread=%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 37871da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37881da177e4SLinus Torvalds { 37898687b63aSAl Viro __be32 *p; 37901da177e4SLinus Torvalds int status = 0; 37911da177e4SLinus Torvalds 37921da177e4SLinus Torvalds *res = 1024; 37931da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37941da177e4SLinus Torvalds return -EIO; 37951da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37961da177e4SLinus Torvalds uint64_t maxwrite; 3797c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3798c0eae66eSBenny Halevy if (unlikely(!p)) 3799c0eae66eSBenny Halevy goto out_overflow; 3800cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 38011da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 38021da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 38031da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 38041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 38051da177e4SLinus Torvalds } 38063110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 38071da177e4SLinus Torvalds return status; 3808c0eae66eSBenny Halevy out_overflow: 3809c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3810c0eae66eSBenny Halevy return -EIO; 38111da177e4SLinus Torvalds } 38121da177e4SLinus Torvalds 3813bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 38141da177e4SLinus Torvalds { 3815bca79478STrond Myklebust uint32_t tmp; 38168687b63aSAl Viro __be32 *p; 3817409924e4STrond Myklebust int ret = 0; 38181da177e4SLinus Torvalds 38191da177e4SLinus Torvalds *mode = 0; 38201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38211da177e4SLinus Torvalds return -EIO; 38221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3823c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3824c0eae66eSBenny Halevy if (unlikely(!p)) 3825c0eae66eSBenny Halevy goto out_overflow; 3826cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3827bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38281da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3829409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38301da177e4SLinus Torvalds } 38313110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3832409924e4STrond Myklebust return ret; 3833c0eae66eSBenny Halevy out_overflow: 3834c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3835c0eae66eSBenny Halevy return -EIO; 38361da177e4SLinus Torvalds } 38371da177e4SLinus Torvalds 38381da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38391da177e4SLinus Torvalds { 38408687b63aSAl Viro __be32 *p; 3841409924e4STrond Myklebust int ret = 0; 38421da177e4SLinus Torvalds 38431da177e4SLinus Torvalds *nlink = 1; 38441da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38451da177e4SLinus Torvalds return -EIO; 38461da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3847c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3848c0eae66eSBenny Halevy if (unlikely(!p)) 3849c0eae66eSBenny Halevy goto out_overflow; 3850cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38511da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3852409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38531da177e4SLinus Torvalds } 38543110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3855409924e4STrond Myklebust return ret; 3856c0eae66eSBenny Halevy out_overflow: 3857c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3858c0eae66eSBenny Halevy return -EIO; 38591da177e4SLinus Torvalds } 38601da177e4SLinus Torvalds 386180e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 38626926afd1STrond Myklebust const struct nfs_server *server, uint32_t *uid, 38636926afd1STrond Myklebust struct nfs4_string *owner_name) 38641da177e4SLinus Torvalds { 38658687b63aSAl Viro uint32_t len; 38668687b63aSAl Viro __be32 *p; 3867409924e4STrond Myklebust int ret = 0; 38681da177e4SLinus Torvalds 38691da177e4SLinus Torvalds *uid = -2; 38701da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38711da177e4SLinus Torvalds return -EIO; 38721da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3873c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3874c0eae66eSBenny Halevy if (unlikely(!p)) 3875c0eae66eSBenny Halevy goto out_overflow; 3876cccddf4fSBenny Halevy len = be32_to_cpup(p); 3877c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3878c0eae66eSBenny Halevy if (unlikely(!p)) 3879c0eae66eSBenny Halevy goto out_overflow; 38806926afd1STrond Myklebust if (owner_name != NULL) { 38816926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38826926afd1STrond Myklebust if (owner_name->data != NULL) { 38836926afd1STrond Myklebust owner_name->len = len; 38846926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38856926afd1STrond Myklebust } 388680e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3887e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3888409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3889409924e4STrond Myklebust else 38901da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38913110ff80SHarvey Harrison __func__); 38921da177e4SLinus Torvalds } else 3893fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38943110ff80SHarvey Harrison __func__, len); 38951da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38961da177e4SLinus Torvalds } 38973110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3898409924e4STrond Myklebust return ret; 3899c0eae66eSBenny Halevy out_overflow: 3900c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3901c0eae66eSBenny Halevy return -EIO; 39021da177e4SLinus Torvalds } 39031da177e4SLinus Torvalds 390480e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 39056926afd1STrond Myklebust const struct nfs_server *server, uint32_t *gid, 39066926afd1STrond Myklebust struct nfs4_string *group_name) 39071da177e4SLinus Torvalds { 39088687b63aSAl Viro uint32_t len; 39098687b63aSAl Viro __be32 *p; 3910409924e4STrond Myklebust int ret = 0; 39111da177e4SLinus Torvalds 39121da177e4SLinus Torvalds *gid = -2; 39131da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 39141da177e4SLinus Torvalds return -EIO; 39151da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3916c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3917c0eae66eSBenny Halevy if (unlikely(!p)) 3918c0eae66eSBenny Halevy goto out_overflow; 3919cccddf4fSBenny Halevy len = be32_to_cpup(p); 3920c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3921c0eae66eSBenny Halevy if (unlikely(!p)) 3922c0eae66eSBenny Halevy goto out_overflow; 39236926afd1STrond Myklebust if (group_name != NULL) { 39246926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 39256926afd1STrond Myklebust if (group_name->data != NULL) { 39266926afd1STrond Myklebust group_name->len = len; 39276926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 39286926afd1STrond Myklebust } 392980e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3930e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3931409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3932409924e4STrond Myklebust else 39331da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 39343110ff80SHarvey Harrison __func__); 39351da177e4SLinus Torvalds } else 3936fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39373110ff80SHarvey Harrison __func__, len); 39381da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 39391da177e4SLinus Torvalds } 39403110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3941409924e4STrond Myklebust return ret; 3942c0eae66eSBenny Halevy out_overflow: 3943c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3944c0eae66eSBenny Halevy return -EIO; 39451da177e4SLinus Torvalds } 39461da177e4SLinus Torvalds 39471da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39481da177e4SLinus Torvalds { 39498687b63aSAl Viro uint32_t major = 0, minor = 0; 39508687b63aSAl Viro __be32 *p; 3951409924e4STrond Myklebust int ret = 0; 39521da177e4SLinus Torvalds 39531da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39541da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39551da177e4SLinus Torvalds return -EIO; 39561da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39571da177e4SLinus Torvalds dev_t tmp; 39581da177e4SLinus Torvalds 3959c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3960c0eae66eSBenny Halevy if (unlikely(!p)) 3961c0eae66eSBenny Halevy goto out_overflow; 39626f723f77SBenny Halevy major = be32_to_cpup(p++); 3963cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39641da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39651da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39661da177e4SLinus Torvalds *rdev = tmp; 39671da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3968409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39691da177e4SLinus Torvalds } 39703110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3971409924e4STrond Myklebust return ret; 3972c0eae66eSBenny Halevy out_overflow: 3973c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3974c0eae66eSBenny Halevy return -EIO; 39751da177e4SLinus Torvalds } 39761da177e4SLinus Torvalds 39771da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39781da177e4SLinus Torvalds { 39798687b63aSAl Viro __be32 *p; 39801da177e4SLinus Torvalds int status = 0; 39811da177e4SLinus Torvalds 39821da177e4SLinus Torvalds *res = 0; 39831da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39841da177e4SLinus Torvalds return -EIO; 39851da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3986c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3987c0eae66eSBenny Halevy if (unlikely(!p)) 3988c0eae66eSBenny Halevy goto out_overflow; 3989cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39901da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39911da177e4SLinus Torvalds } 39923110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39931da177e4SLinus Torvalds return status; 3994c0eae66eSBenny Halevy out_overflow: 3995c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3996c0eae66eSBenny Halevy return -EIO; 39971da177e4SLinus Torvalds } 39981da177e4SLinus Torvalds 39991da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40001da177e4SLinus Torvalds { 40018687b63aSAl Viro __be32 *p; 40021da177e4SLinus Torvalds int status = 0; 40031da177e4SLinus Torvalds 40041da177e4SLinus Torvalds *res = 0; 40051da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 40061da177e4SLinus Torvalds return -EIO; 40071da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 4008c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4009c0eae66eSBenny Halevy if (unlikely(!p)) 4010c0eae66eSBenny Halevy goto out_overflow; 4011cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40121da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 40131da177e4SLinus Torvalds } 40143110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 40151da177e4SLinus Torvalds return status; 4016c0eae66eSBenny Halevy out_overflow: 4017c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4018c0eae66eSBenny Halevy return -EIO; 40191da177e4SLinus Torvalds } 40201da177e4SLinus Torvalds 40211da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40221da177e4SLinus Torvalds { 40238687b63aSAl Viro __be32 *p; 40241da177e4SLinus Torvalds int status = 0; 40251da177e4SLinus Torvalds 40261da177e4SLinus Torvalds *res = 0; 40271da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40281da177e4SLinus Torvalds return -EIO; 40291da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4030c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4031c0eae66eSBenny Halevy if (unlikely(!p)) 4032c0eae66eSBenny Halevy goto out_overflow; 4033cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40341da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40351da177e4SLinus Torvalds } 40363110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40371da177e4SLinus Torvalds return status; 4038c0eae66eSBenny Halevy out_overflow: 4039c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4040c0eae66eSBenny Halevy return -EIO; 40411da177e4SLinus Torvalds } 40421da177e4SLinus Torvalds 40431da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40441da177e4SLinus Torvalds { 40458687b63aSAl Viro __be32 *p; 4046409924e4STrond Myklebust int ret = 0; 40471da177e4SLinus Torvalds 40481da177e4SLinus Torvalds *used = 0; 40491da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40501da177e4SLinus Torvalds return -EIO; 40511da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4052c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4053c0eae66eSBenny Halevy if (unlikely(!p)) 4054c0eae66eSBenny Halevy goto out_overflow; 4055cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40561da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4057409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40581da177e4SLinus Torvalds } 40593110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40601da177e4SLinus Torvalds (unsigned long long)*used); 4061409924e4STrond Myklebust return ret; 4062c0eae66eSBenny Halevy out_overflow: 4063c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4064c0eae66eSBenny Halevy return -EIO; 40651da177e4SLinus Torvalds } 40661da177e4SLinus Torvalds 40671da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40681da177e4SLinus Torvalds { 40698687b63aSAl Viro __be32 *p; 40701da177e4SLinus Torvalds uint64_t sec; 40711da177e4SLinus Torvalds uint32_t nsec; 40721da177e4SLinus Torvalds 4073c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4074c0eae66eSBenny Halevy if (unlikely(!p)) 4075c0eae66eSBenny Halevy goto out_overflow; 40763ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4077cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40781da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40791da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40801da177e4SLinus Torvalds return 0; 4081c0eae66eSBenny Halevy out_overflow: 4082c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4083c0eae66eSBenny Halevy return -EIO; 40841da177e4SLinus Torvalds } 40851da177e4SLinus Torvalds 40861da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40871da177e4SLinus Torvalds { 40881da177e4SLinus Torvalds int status = 0; 40891da177e4SLinus Torvalds 40901da177e4SLinus Torvalds time->tv_sec = 0; 40911da177e4SLinus Torvalds time->tv_nsec = 0; 40921da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40931da177e4SLinus Torvalds return -EIO; 40941da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40951da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4096409924e4STrond Myklebust if (status == 0) 4097409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40981da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40991da177e4SLinus Torvalds } 41003110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 41011da177e4SLinus Torvalds return status; 41021da177e4SLinus Torvalds } 41031da177e4SLinus Torvalds 41041da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41051da177e4SLinus Torvalds { 41061da177e4SLinus Torvalds int status = 0; 41071da177e4SLinus Torvalds 41081da177e4SLinus Torvalds time->tv_sec = 0; 41091da177e4SLinus Torvalds time->tv_nsec = 0; 41101da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 41111da177e4SLinus Torvalds return -EIO; 41121da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 41131da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4114409924e4STrond Myklebust if (status == 0) 4115409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 41161da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 41171da177e4SLinus Torvalds } 41183110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 41191da177e4SLinus Torvalds return status; 41201da177e4SLinus Torvalds } 41211da177e4SLinus Torvalds 412255b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 412355b6e774SRicardo Labiaga struct timespec *time) 412455b6e774SRicardo Labiaga { 412555b6e774SRicardo Labiaga int status = 0; 412655b6e774SRicardo Labiaga 412755b6e774SRicardo Labiaga time->tv_sec = 0; 412855b6e774SRicardo Labiaga time->tv_nsec = 0; 412955b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 413055b6e774SRicardo Labiaga return -EIO; 413155b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 413255b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 413355b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 413455b6e774SRicardo Labiaga } 413555b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 413655b6e774SRicardo Labiaga (long)time->tv_nsec); 413755b6e774SRicardo Labiaga return status; 413855b6e774SRicardo Labiaga } 413955b6e774SRicardo Labiaga 41401da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41411da177e4SLinus Torvalds { 41421da177e4SLinus Torvalds int status = 0; 41431da177e4SLinus Torvalds 41441da177e4SLinus Torvalds time->tv_sec = 0; 41451da177e4SLinus Torvalds time->tv_nsec = 0; 41461da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 41471da177e4SLinus Torvalds return -EIO; 41481da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 41491da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4150409924e4STrond Myklebust if (status == 0) 4151409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 41521da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 41531da177e4SLinus Torvalds } 41543110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 41551da177e4SLinus Torvalds return status; 41561da177e4SLinus Torvalds } 41571da177e4SLinus Torvalds 41588687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 41591da177e4SLinus Torvalds { 41601da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 41611da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 41621da177e4SLinus Torvalds 41631da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4164fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4165fe82a183SChuck Lever "%u %c %u\n", 41663110ff80SHarvey Harrison __func__, 41671da177e4SLinus Torvalds attrwords << 2, 41681da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 41691da177e4SLinus Torvalds nwords << 2); 41701da177e4SLinus Torvalds return -EIO; 41711da177e4SLinus Torvalds } 41721da177e4SLinus Torvalds return 0; 41731da177e4SLinus Torvalds } 41741da177e4SLinus Torvalds 41751da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41761da177e4SLinus Torvalds { 41778687b63aSAl Viro __be32 *p; 41781da177e4SLinus Torvalds 4179c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4180c0eae66eSBenny Halevy if (unlikely(!p)) 4181c0eae66eSBenny Halevy goto out_overflow; 41826f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 41833ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4184cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 41851da177e4SLinus Torvalds return 0; 4186c0eae66eSBenny Halevy out_overflow: 4187c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4188c0eae66eSBenny Halevy return -EIO; 41891da177e4SLinus Torvalds } 41901da177e4SLinus Torvalds 41911da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 41921da177e4SLinus Torvalds { 41938687b63aSAl Viro __be32 *p; 41941da177e4SLinus Torvalds uint32_t supp, acc; 41951da177e4SLinus Torvalds int status; 41961da177e4SLinus Torvalds 41971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41981da177e4SLinus Torvalds if (status) 41991da177e4SLinus Torvalds return status; 4200c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4201c0eae66eSBenny Halevy if (unlikely(!p)) 4202c0eae66eSBenny Halevy goto out_overflow; 42036f723f77SBenny Halevy supp = be32_to_cpup(p++); 4204cccddf4fSBenny Halevy acc = be32_to_cpup(p); 42051da177e4SLinus Torvalds access->supported = supp; 42061da177e4SLinus Torvalds access->access = acc; 42071da177e4SLinus Torvalds return 0; 4208c0eae66eSBenny Halevy out_overflow: 4209c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4210c0eae66eSBenny Halevy return -EIO; 42111da177e4SLinus Torvalds } 42121da177e4SLinus Torvalds 421307d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 42141da177e4SLinus Torvalds { 42158687b63aSAl Viro __be32 *p; 421607d30434SBenny Halevy 421707d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 421807d30434SBenny Halevy if (likely(p)) { 421907d30434SBenny Halevy memcpy(buf, p, len); 422007d30434SBenny Halevy return 0; 422107d30434SBenny Halevy } 422207d30434SBenny Halevy print_overflow_msg(__func__, xdr); 422307d30434SBenny Halevy return -EIO; 422407d30434SBenny Halevy } 422507d30434SBenny Halevy 422607d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 422707d30434SBenny Halevy { 422807d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 42291da177e4SLinus Torvalds } 42301da177e4SLinus Torvalds 42311da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 42321da177e4SLinus Torvalds { 42331da177e4SLinus Torvalds int status; 42341da177e4SLinus Torvalds 42351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4236c1d51931STrond Myklebust if (status != -EIO) 4237c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 423807d30434SBenny Halevy if (!status) 423907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42401da177e4SLinus Torvalds return status; 42411da177e4SLinus Torvalds } 42421da177e4SLinus Torvalds 4243db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4244db942bbdSBenny Halevy { 4245db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 42461da177e4SLinus Torvalds } 42471da177e4SLinus Torvalds 42481da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 42491da177e4SLinus Torvalds { 42501da177e4SLinus Torvalds int status; 42511da177e4SLinus Torvalds 42521da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4253db942bbdSBenny Halevy if (!status) 4254db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 42551da177e4SLinus Torvalds return status; 42561da177e4SLinus Torvalds } 42571da177e4SLinus Torvalds 42581da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42591da177e4SLinus Torvalds { 42608687b63aSAl Viro __be32 *p; 42611da177e4SLinus Torvalds uint32_t bmlen; 42621da177e4SLinus Torvalds int status; 42631da177e4SLinus Torvalds 42641da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 42651da177e4SLinus Torvalds if (status) 42661da177e4SLinus Torvalds return status; 42671da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 42681da177e4SLinus Torvalds return status; 4269c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4270c0eae66eSBenny Halevy if (unlikely(!p)) 4271c0eae66eSBenny Halevy goto out_overflow; 4272cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4273c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4274c0eae66eSBenny Halevy if (likely(p)) 42751da177e4SLinus Torvalds return 0; 4276c0eae66eSBenny Halevy out_overflow: 4277c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4278c0eae66eSBenny Halevy return -EIO; 42791da177e4SLinus Torvalds } 42801da177e4SLinus Torvalds 42811da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 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 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42941da177e4SLinus Torvalds goto xdr_error; 4295264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4296264e6351SChuck Lever &res->fh_expire_type)) != 0) 4297264e6351SChuck Lever goto xdr_error; 42981da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42991da177e4SLinus Torvalds goto xdr_error; 43001da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 43011da177e4SLinus Torvalds goto xdr_error; 43021da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 43031da177e4SLinus Torvalds goto xdr_error; 43041da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43051da177e4SLinus Torvalds xdr_error: 43063110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43071da177e4SLinus Torvalds return status; 43081da177e4SLinus Torvalds } 43091da177e4SLinus Torvalds 43101da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 43111da177e4SLinus Torvalds { 43128687b63aSAl Viro __be32 *savep; 4313dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43141da177e4SLinus Torvalds int status; 43151da177e4SLinus Torvalds 43161da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43171da177e4SLinus Torvalds goto xdr_error; 43181da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43191da177e4SLinus Torvalds goto xdr_error; 43201da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43211da177e4SLinus Torvalds goto xdr_error; 43221da177e4SLinus Torvalds 43231da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 43241da177e4SLinus Torvalds goto xdr_error; 43251da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 43261da177e4SLinus Torvalds goto xdr_error; 43271da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 43281da177e4SLinus Torvalds goto xdr_error; 43291da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 43301da177e4SLinus Torvalds goto xdr_error; 43311da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 43321da177e4SLinus Torvalds goto xdr_error; 43331da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 43341da177e4SLinus Torvalds goto xdr_error; 43351da177e4SLinus Torvalds 43361da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43371da177e4SLinus Torvalds xdr_error: 43383110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43391da177e4SLinus Torvalds return status; 43401da177e4SLinus Torvalds } 43411da177e4SLinus Torvalds 43421da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 43431da177e4SLinus Torvalds { 43448687b63aSAl Viro __be32 *savep; 4345dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43461da177e4SLinus Torvalds int status; 43471da177e4SLinus Torvalds 43481da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43491da177e4SLinus Torvalds goto xdr_error; 43501da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43511da177e4SLinus Torvalds goto xdr_error; 43521da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43531da177e4SLinus Torvalds goto xdr_error; 43541da177e4SLinus Torvalds 43551da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 43561da177e4SLinus Torvalds goto xdr_error; 43571da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 43581da177e4SLinus Torvalds goto xdr_error; 43591da177e4SLinus Torvalds 43601da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43611da177e4SLinus Torvalds xdr_error: 43623110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43631da177e4SLinus Torvalds return status; 43641da177e4SLinus Torvalds } 43651da177e4SLinus Torvalds 4366ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4367ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 43688b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 43696926afd1STrond Myklebust const struct nfs_server *server) 43701da177e4SLinus Torvalds { 4371bca79478STrond Myklebust int status; 4372bca79478STrond Myklebust umode_t fmode = 0; 4373ae42c70aSBryan Schumaker uint32_t type; 4374ee7b75fcSTrond Myklebust int32_t err; 43751da177e4SLinus Torvalds 4376f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4377f26c7a78STrond Myklebust if (status < 0) 43781da177e4SLinus Torvalds goto xdr_error; 4379409924e4STrond Myklebust fattr->mode = 0; 4380409924e4STrond Myklebust if (status != 0) { 4381409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4382409924e4STrond Myklebust fattr->valid |= status; 4383409924e4STrond Myklebust } 43841da177e4SLinus Torvalds 4385f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4386f26c7a78STrond Myklebust if (status < 0) 43871da177e4SLinus Torvalds goto xdr_error; 4388409924e4STrond Myklebust fattr->valid |= status; 4389f26c7a78STrond Myklebust 4390f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4391f26c7a78STrond Myklebust if (status < 0) 43921da177e4SLinus Torvalds goto xdr_error; 4393409924e4STrond Myklebust fattr->valid |= status; 4394f26c7a78STrond Myklebust 4395f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4396f26c7a78STrond Myklebust if (status < 0) 43971da177e4SLinus Torvalds goto xdr_error; 4398409924e4STrond Myklebust fattr->valid |= status; 4399f26c7a78STrond Myklebust 4400ee7b75fcSTrond Myklebust err = 0; 4401ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4402ae42c70aSBryan Schumaker if (status < 0) 4403ae42c70aSBryan Schumaker goto xdr_error; 4404ee7b75fcSTrond Myklebust if (err == -NFS4ERR_WRONGSEC) 4405ee7b75fcSTrond Myklebust nfs_fixup_secinfo_attributes(fattr, fh); 4406ae42c70aSBryan Schumaker 4407ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4408ae42c70aSBryan Schumaker if (status < 0) 4409ae42c70aSBryan Schumaker goto xdr_error; 4410ae42c70aSBryan Schumaker 4411f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4412f26c7a78STrond Myklebust if (status < 0) 44131da177e4SLinus Torvalds goto xdr_error; 4414409924e4STrond Myklebust fattr->valid |= status; 4415f26c7a78STrond Myklebust 44168b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4417f26c7a78STrond Myklebust if (status < 0) 4418683b57b4STrond Myklebust goto xdr_error; 4419409924e4STrond Myklebust fattr->valid |= status; 4420f26c7a78STrond Myklebust 4421f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4422f26c7a78STrond Myklebust if (status < 0) 44231da177e4SLinus Torvalds goto xdr_error; 4424409924e4STrond Myklebust if (status != 0) { 44251da177e4SLinus Torvalds fattr->mode |= fmode; 4426409924e4STrond Myklebust fattr->valid |= status; 4427409924e4STrond Myklebust } 4428f26c7a78STrond Myklebust 4429f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4430f26c7a78STrond Myklebust if (status < 0) 44311da177e4SLinus Torvalds goto xdr_error; 4432409924e4STrond Myklebust fattr->valid |= status; 4433f26c7a78STrond Myklebust 44346926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4435f26c7a78STrond Myklebust if (status < 0) 44361da177e4SLinus Torvalds goto xdr_error; 4437409924e4STrond Myklebust fattr->valid |= status; 4438f26c7a78STrond Myklebust 44396926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4440f26c7a78STrond Myklebust if (status < 0) 44411da177e4SLinus Torvalds goto xdr_error; 4442409924e4STrond Myklebust fattr->valid |= status; 4443f26c7a78STrond Myklebust 4444f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4445f26c7a78STrond Myklebust if (status < 0) 44461da177e4SLinus Torvalds goto xdr_error; 4447409924e4STrond Myklebust fattr->valid |= status; 4448f26c7a78STrond Myklebust 4449f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4450f26c7a78STrond Myklebust if (status < 0) 44511da177e4SLinus Torvalds goto xdr_error; 4452409924e4STrond Myklebust fattr->valid |= status; 4453f26c7a78STrond Myklebust 4454f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4455f26c7a78STrond Myklebust if (status < 0) 44561da177e4SLinus Torvalds goto xdr_error; 4457409924e4STrond Myklebust fattr->valid |= status; 4458f26c7a78STrond Myklebust 4459f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4460f26c7a78STrond Myklebust if (status < 0) 44611da177e4SLinus Torvalds goto xdr_error; 4462409924e4STrond Myklebust fattr->valid |= status; 4463f26c7a78STrond Myklebust 4464f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4465f26c7a78STrond Myklebust if (status < 0) 44661da177e4SLinus Torvalds goto xdr_error; 4467409924e4STrond Myklebust fattr->valid |= status; 4468f26c7a78STrond Myklebust 446928331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4470f26c7a78STrond Myklebust if (status < 0) 447199baf625SManoj Naik goto xdr_error; 4472409924e4STrond Myklebust fattr->valid |= status; 4473f26c7a78STrond Myklebust 4474ae42c70aSBryan Schumaker xdr_error: 4475ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4476ae42c70aSBryan Schumaker return status; 4477ae42c70aSBryan Schumaker } 4478ae42c70aSBryan Schumaker 4479ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 44808b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 44818b7e3f49STrond Myklebust const struct nfs_server *server) 4482ae42c70aSBryan Schumaker { 4483ae42c70aSBryan Schumaker __be32 *savep; 4484ae42c70aSBryan Schumaker uint32_t attrlen, 4485dae100c2SFred Isaman bitmap[3] = {0}; 4486ae42c70aSBryan Schumaker int status; 4487ae42c70aSBryan Schumaker 4488ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4489ae42c70aSBryan Schumaker if (status < 0) 4490ae42c70aSBryan Schumaker goto xdr_error; 4491ae42c70aSBryan Schumaker 4492ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4493ae42c70aSBryan Schumaker if (status < 0) 4494ae42c70aSBryan Schumaker goto xdr_error; 4495ae42c70aSBryan Schumaker 4496ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4497ae42c70aSBryan Schumaker if (status < 0) 4498ae42c70aSBryan Schumaker goto xdr_error; 4499ae42c70aSBryan Schumaker 45008b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4501ae42c70aSBryan Schumaker if (status < 0) 4502ae42c70aSBryan Schumaker goto xdr_error; 4503ae42c70aSBryan Schumaker 4504f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 45051da177e4SLinus Torvalds xdr_error: 45063110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 45071da177e4SLinus Torvalds return status; 45081da177e4SLinus Torvalds } 45091da177e4SLinus Torvalds 4510ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45116926afd1STrond Myklebust const struct nfs_server *server) 4512ae42c70aSBryan Schumaker { 45138b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4514ae42c70aSBryan Schumaker } 45151da177e4SLinus Torvalds 4516504913fbSAndy Adamson /* 4517504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4518504913fbSAndy Adamson * one layout driver per file system. 4519504913fbSAndy Adamson */ 4520504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4521504913fbSAndy Adamson uint32_t *layouttype) 4522504913fbSAndy Adamson { 4523504913fbSAndy Adamson uint32_t *p; 4524504913fbSAndy Adamson int num; 4525504913fbSAndy Adamson 4526504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4527504913fbSAndy Adamson if (unlikely(!p)) 4528504913fbSAndy Adamson goto out_overflow; 4529504913fbSAndy Adamson num = be32_to_cpup(p); 4530504913fbSAndy Adamson 4531504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4532504913fbSAndy Adamson if (num == 0) { 4533504913fbSAndy Adamson *layouttype = 0; 4534504913fbSAndy Adamson return 0; 4535504913fbSAndy Adamson } 4536504913fbSAndy Adamson if (num > 1) 4537a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4538a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4539504913fbSAndy Adamson 4540504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4541504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4542504913fbSAndy Adamson if (unlikely(!p)) 4543504913fbSAndy Adamson goto out_overflow; 4544504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4545504913fbSAndy Adamson return 0; 4546504913fbSAndy Adamson out_overflow: 4547504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4548504913fbSAndy Adamson return -EIO; 4549504913fbSAndy Adamson } 4550504913fbSAndy Adamson 4551504913fbSAndy Adamson /* 4552504913fbSAndy Adamson * The type of file system exported. 4553504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4554504913fbSAndy Adamson */ 4555504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4556504913fbSAndy Adamson uint32_t *layouttype) 4557504913fbSAndy Adamson { 4558504913fbSAndy Adamson int status = 0; 4559504913fbSAndy Adamson 4560504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4561504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4562504913fbSAndy Adamson return -EIO; 4563504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4564504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4565504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4566504913fbSAndy Adamson } else 4567504913fbSAndy Adamson *layouttype = 0; 4568504913fbSAndy Adamson return status; 4569504913fbSAndy Adamson } 4570504913fbSAndy Adamson 4571dae100c2SFred Isaman /* 4572dae100c2SFred Isaman * The prefered block size for layout directed io 4573dae100c2SFred Isaman */ 4574dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4575dae100c2SFred Isaman uint32_t *res) 4576dae100c2SFred Isaman { 4577dae100c2SFred Isaman __be32 *p; 4578dae100c2SFred Isaman 4579dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4580dae100c2SFred Isaman *res = 0; 4581dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4582dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4583dae100c2SFred Isaman if (unlikely(!p)) { 4584dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4585dae100c2SFred Isaman return -EIO; 4586dae100c2SFred Isaman } 4587dae100c2SFred Isaman *res = be32_to_cpup(p); 4588dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4589dae100c2SFred Isaman } 4590dae100c2SFred Isaman return 0; 4591dae100c2SFred Isaman } 4592dae100c2SFred Isaman 45931da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 45941da177e4SLinus Torvalds { 45958687b63aSAl Viro __be32 *savep; 4596dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 45971da177e4SLinus Torvalds int status; 45981da177e4SLinus Torvalds 45991da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 46001da177e4SLinus Torvalds goto xdr_error; 46011da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 46021da177e4SLinus Torvalds goto xdr_error; 46031da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 46041da177e4SLinus Torvalds goto xdr_error; 46051da177e4SLinus Torvalds 46061da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 46071da177e4SLinus Torvalds 46081da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 46091da177e4SLinus Torvalds goto xdr_error; 46101da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 46111da177e4SLinus Torvalds goto xdr_error; 46121da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 46131da177e4SLinus Torvalds goto xdr_error; 46141da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 46151da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 46161da177e4SLinus Torvalds goto xdr_error; 46171da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 461855b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 461955b6e774SRicardo Labiaga if (status != 0) 462055b6e774SRicardo Labiaga goto xdr_error; 4621504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4622504913fbSAndy Adamson if (status != 0) 4623504913fbSAndy Adamson goto xdr_error; 4624dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4625dae100c2SFred Isaman if (status) 4626dae100c2SFred Isaman goto xdr_error; 46271da177e4SLinus Torvalds 46281da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46291da177e4SLinus Torvalds xdr_error: 46303110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46311da177e4SLinus Torvalds return status; 46321da177e4SLinus Torvalds } 46331da177e4SLinus Torvalds 46341da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46351da177e4SLinus Torvalds { 46368687b63aSAl Viro __be32 *p; 46371da177e4SLinus Torvalds uint32_t len; 46381da177e4SLinus Torvalds int status; 46391da177e4SLinus Torvalds 46409936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46419936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46429936781dSTrond Myklebust 46431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46441da177e4SLinus Torvalds if (status) 46451da177e4SLinus Torvalds return status; 46461da177e4SLinus Torvalds 4647c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4648c0eae66eSBenny Halevy if (unlikely(!p)) 4649c0eae66eSBenny Halevy goto out_overflow; 4650cccddf4fSBenny Halevy len = be32_to_cpup(p); 46511da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46521da177e4SLinus Torvalds return -EIO; 46531da177e4SLinus Torvalds fh->size = len; 4654c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4655c0eae66eSBenny Halevy if (unlikely(!p)) 4656c0eae66eSBenny Halevy goto out_overflow; 465799398d06SBenny Halevy memcpy(fh->data, p, len); 46581da177e4SLinus Torvalds return 0; 4659c0eae66eSBenny Halevy out_overflow: 4660c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4661c0eae66eSBenny Halevy return -EIO; 46621da177e4SLinus Torvalds } 46631da177e4SLinus Torvalds 46641da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 46651da177e4SLinus Torvalds { 46661da177e4SLinus Torvalds int status; 46671da177e4SLinus Torvalds 46681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 46691da177e4SLinus Torvalds if (status) 46701da177e4SLinus Torvalds return status; 46711da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 46721da177e4SLinus Torvalds } 46731da177e4SLinus Torvalds 46741da177e4SLinus Torvalds /* 46751da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 46761da177e4SLinus Torvalds */ 4677911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 46781da177e4SLinus Torvalds { 4679911d1aafSTrond Myklebust uint64_t offset, length, clientid; 46808687b63aSAl Viro __be32 *p; 4681911d1aafSTrond Myklebust uint32_t namelen, type; 46821da177e4SLinus Torvalds 4683babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4684c0eae66eSBenny Halevy if (unlikely(!p)) 4685c0eae66eSBenny Halevy goto out_overflow; 4686babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 46873ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4688babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4689babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4690911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4691911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4692911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4693911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4694911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4695911d1aafSTrond Myklebust if (type & 1) 4696911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4697911d1aafSTrond Myklebust fl->fl_pid = 0; 4698911d1aafSTrond Myklebust } 4699babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4700babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4701babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4702c0eae66eSBenny Halevy if (likely(p)) 47031da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4704c0eae66eSBenny Halevy out_overflow: 4705c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4706c0eae66eSBenny Halevy return -EIO; 47071da177e4SLinus Torvalds } 47081da177e4SLinus Torvalds 4709911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 47101da177e4SLinus Torvalds { 47111da177e4SLinus Torvalds int status; 47121da177e4SLinus Torvalds 47131da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4714c1d51931STrond Myklebust if (status == -EIO) 4715c1d51931STrond Myklebust goto out; 47161da177e4SLinus Torvalds if (status == 0) { 471707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 471807d30434SBenny Halevy if (unlikely(status)) 471907d30434SBenny Halevy goto out; 47201da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4721c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4722c1d51931STrond Myklebust if (res->open_seqid != NULL) 4723c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4724c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4725c1d51931STrond Myklebust out: 47261da177e4SLinus Torvalds return status; 47271da177e4SLinus Torvalds } 47281da177e4SLinus Torvalds 4729911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47301da177e4SLinus Torvalds { 47311da177e4SLinus Torvalds int status; 47321da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47331da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4734911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47351da177e4SLinus Torvalds return status; 47361da177e4SLinus Torvalds } 47371da177e4SLinus Torvalds 4738911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47391da177e4SLinus Torvalds { 47401da177e4SLinus Torvalds int status; 47411da177e4SLinus Torvalds 47421da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4743c1d51931STrond Myklebust if (status != -EIO) 4744c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 474507d30434SBenny Halevy if (status == 0) 474607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47471da177e4SLinus Torvalds return status; 47481da177e4SLinus Torvalds } 47491da177e4SLinus Torvalds 4750d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4751d3c7b7ccSTrond Myklebust { 4752d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4753d3c7b7ccSTrond Myklebust } 4754d3c7b7ccSTrond Myklebust 47551da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47561da177e4SLinus Torvalds { 47571da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47581da177e4SLinus Torvalds } 47591da177e4SLinus Torvalds 47601da177e4SLinus Torvalds /* This is too sick! */ 47611da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47621da177e4SLinus Torvalds { 47638687b63aSAl Viro __be32 *p; 47641da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 47651da177e4SLinus Torvalds 4766c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4767c0eae66eSBenny Halevy if (unlikely(!p)) 4768c0eae66eSBenny Halevy goto out_overflow; 47696f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 47701da177e4SLinus Torvalds switch (limit_type) { 47711da177e4SLinus Torvalds case 1: 4772cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 47731da177e4SLinus Torvalds break; 47741da177e4SLinus Torvalds case 2: 47756f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4776cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 47771da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 47781da177e4SLinus Torvalds } 47791da177e4SLinus Torvalds return 0; 4780c0eae66eSBenny Halevy out_overflow: 4781c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4782c0eae66eSBenny Halevy return -EIO; 47831da177e4SLinus Torvalds } 47841da177e4SLinus Torvalds 47851da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 47861da177e4SLinus Torvalds { 47878687b63aSAl Viro __be32 *p; 47881da177e4SLinus Torvalds uint32_t delegation_type; 478907d30434SBenny Halevy int status; 47901da177e4SLinus Torvalds 4791c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4792c0eae66eSBenny Halevy if (unlikely(!p)) 4793c0eae66eSBenny Halevy goto out_overflow; 4794cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 47951da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 47961da177e4SLinus Torvalds res->delegation_type = 0; 47971da177e4SLinus Torvalds return 0; 47981da177e4SLinus Torvalds } 479907d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 480007d30434SBenny Halevy if (unlikely(status)) 480107d30434SBenny Halevy return status; 4802c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4803c0eae66eSBenny Halevy if (unlikely(!p)) 4804c0eae66eSBenny Halevy goto out_overflow; 4805cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 480605d564feSAndy Adamson 48071da177e4SLinus Torvalds switch (delegation_type) { 48081da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 48091da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 48101da177e4SLinus Torvalds break; 48111da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 48121da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 48131da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 48141da177e4SLinus Torvalds return -EIO; 48151da177e4SLinus Torvalds } 48167539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4817c0eae66eSBenny Halevy out_overflow: 4818c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4819c0eae66eSBenny Halevy return -EIO; 48201da177e4SLinus Torvalds } 48211da177e4SLinus Torvalds 48221da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 48231da177e4SLinus Torvalds { 48248687b63aSAl Viro __be32 *p; 4825aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 48261da177e4SLinus Torvalds int status; 48271da177e4SLinus Torvalds 48281da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4829c1d51931STrond Myklebust if (status != -EIO) 4830c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 483107d30434SBenny Halevy if (!status) 483207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 483307d30434SBenny Halevy if (unlikely(status)) 48341da177e4SLinus Torvalds return status; 48351da177e4SLinus Torvalds 48361da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48371da177e4SLinus Torvalds 4838c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4839c0eae66eSBenny Halevy if (unlikely(!p)) 4840c0eae66eSBenny Halevy goto out_overflow; 48416f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4842cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48431da177e4SLinus Torvalds if (bmlen > 10) 48441da177e4SLinus Torvalds goto xdr_error; 48451da177e4SLinus Torvalds 4846c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4847c0eae66eSBenny Halevy if (unlikely(!p)) 4848c0eae66eSBenny Halevy goto out_overflow; 4849aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4850aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48516f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4852aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4853aa53ed54SJeff Layton res->attrset[i] = 0; 4854aa53ed54SJeff Layton 48551da177e4SLinus Torvalds return decode_delegation(xdr, res); 48561da177e4SLinus Torvalds xdr_error: 48573110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48581da177e4SLinus Torvalds return -EIO; 4859c0eae66eSBenny Halevy out_overflow: 4860c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4861c0eae66eSBenny Halevy return -EIO; 48621da177e4SLinus Torvalds } 48631da177e4SLinus Torvalds 48641da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 48651da177e4SLinus Torvalds { 48661da177e4SLinus Torvalds int status; 48671da177e4SLinus Torvalds 48681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4869c1d51931STrond Myklebust if (status != -EIO) 4870c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 487107d30434SBenny Halevy if (!status) 487207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48731da177e4SLinus Torvalds return status; 48741da177e4SLinus Torvalds } 48751da177e4SLinus Torvalds 48761da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 48771da177e4SLinus Torvalds { 48781da177e4SLinus Torvalds int status; 48791da177e4SLinus Torvalds 48801da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4881c1d51931STrond Myklebust if (status != -EIO) 4882c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 488307d30434SBenny Halevy if (!status) 488407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48851da177e4SLinus Torvalds return status; 48861da177e4SLinus Torvalds } 48871da177e4SLinus Torvalds 48881da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 48891da177e4SLinus Torvalds { 48901da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 48911da177e4SLinus Torvalds } 48921da177e4SLinus Torvalds 48931da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 48941da177e4SLinus Torvalds { 48951da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 48961da177e4SLinus Torvalds } 48971da177e4SLinus Torvalds 48981da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 48991da177e4SLinus Torvalds { 49001da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 49018687b63aSAl Viro __be32 *p; 49021da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 49031da177e4SLinus Torvalds int status; 49041da177e4SLinus Torvalds 49051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 49061da177e4SLinus Torvalds if (status) 49071da177e4SLinus Torvalds return status; 4908c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4909c0eae66eSBenny Halevy if (unlikely(!p)) 4910c0eae66eSBenny Halevy goto out_overflow; 49116f723f77SBenny Halevy eof = be32_to_cpup(p++); 4912cccddf4fSBenny Halevy count = be32_to_cpup(p); 49138111f373SChuck Lever hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 49141da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 49151da177e4SLinus Torvalds if (count > recvd) { 4916fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 49171da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 49181da177e4SLinus Torvalds count = recvd; 49191da177e4SLinus Torvalds eof = 0; 49201da177e4SLinus Torvalds } 49211da177e4SLinus Torvalds xdr_read_pages(xdr, count); 49221da177e4SLinus Torvalds res->eof = eof; 49231da177e4SLinus Torvalds res->count = count; 49241da177e4SLinus Torvalds return 0; 4925c0eae66eSBenny Halevy out_overflow: 4926c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4927c0eae66eSBenny Halevy return -EIO; 49281da177e4SLinus Torvalds } 49291da177e4SLinus Torvalds 49301da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 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 recvd, pglen = rcvbuf->page_len; 4936bcecff77SChuck Lever int status; 49371da177e4SLinus Torvalds 49381da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4939db942bbdSBenny Halevy if (!status) 4940db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4941db942bbdSBenny Halevy if (unlikely(status)) 49421da177e4SLinus Torvalds return status; 494344109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 494444109241SFred Isaman __func__, 4945eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4946eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4947eadf4598STrond Myklebust 49481da177e4SLinus Torvalds 4949db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 49501da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 49511da177e4SLinus Torvalds if (pglen > recvd) 49521da177e4SLinus Torvalds pglen = recvd; 49531da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 49541da177e4SLinus Torvalds 49557bda2cdfSJeff Layton 4956ac396128STrond Myklebust return pglen; 49571da177e4SLinus Torvalds } 49581da177e4SLinus Torvalds 49591da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49601da177e4SLinus Torvalds { 49611da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 49621da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4963bcecff77SChuck Lever size_t hdrlen; 4964bcecff77SChuck Lever u32 len, recvd; 49658687b63aSAl Viro __be32 *p; 49661da177e4SLinus Torvalds int status; 49671da177e4SLinus Torvalds 49681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49691da177e4SLinus Torvalds if (status) 49701da177e4SLinus Torvalds return status; 49711da177e4SLinus Torvalds 49721da177e4SLinus Torvalds /* Convert length of symlink */ 4973c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4974c0eae66eSBenny Halevy if (unlikely(!p)) 4975c0eae66eSBenny Halevy goto out_overflow; 4976cccddf4fSBenny Halevy len = be32_to_cpup(p); 49771da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4978fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49791da177e4SLinus Torvalds return -ENAMETOOLONG; 49801da177e4SLinus Torvalds } 49811da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 49821da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 49831da177e4SLinus Torvalds if (recvd < len) { 4984fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 49851da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 49861da177e4SLinus Torvalds return -EIO; 49871da177e4SLinus Torvalds } 49881da177e4SLinus Torvalds xdr_read_pages(xdr, len); 49891da177e4SLinus Torvalds /* 49901da177e4SLinus Torvalds * The XDR encode routine has set things up so that 49911da177e4SLinus Torvalds * the link text will be copied directly into the 49921da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 49931da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 49941da177e4SLinus Torvalds * null-termination). 49951da177e4SLinus Torvalds */ 4996b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 49971da177e4SLinus Torvalds return 0; 4998c0eae66eSBenny Halevy out_overflow: 4999c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5000c0eae66eSBenny Halevy return -EIO; 50011da177e4SLinus Torvalds } 50021da177e4SLinus Torvalds 50031da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 50041da177e4SLinus Torvalds { 50051da177e4SLinus Torvalds int status; 50061da177e4SLinus Torvalds 50071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 50081da177e4SLinus Torvalds if (status) 50091da177e4SLinus Torvalds goto out; 50101da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 50111da177e4SLinus Torvalds out: 50121da177e4SLinus Torvalds return status; 50131da177e4SLinus Torvalds } 50141da177e4SLinus Torvalds 50151da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 50161da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 50171da177e4SLinus Torvalds { 50181da177e4SLinus Torvalds int status; 50191da177e4SLinus Torvalds 50201da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 50211da177e4SLinus Torvalds if (status) 50221da177e4SLinus Torvalds goto out; 50231da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 50241da177e4SLinus Torvalds goto out; 50251da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 50261da177e4SLinus Torvalds out: 50271da177e4SLinus Torvalds return status; 50281da177e4SLinus Torvalds } 50291da177e4SLinus Torvalds 50301da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50311da177e4SLinus Torvalds { 50321da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50331da177e4SLinus Torvalds } 50341da177e4SLinus Torvalds 503556ae19f3STrond Myklebust static int 503656ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 503756ae19f3STrond Myklebust { 503856ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 503956ae19f3STrond Myklebust } 504056ae19f3STrond Myklebust 5041029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5042bf118a34SAndy Adamson struct nfs_getaclres *res) 5043029d105eSJ. Bruce Fields { 5044bf118a34SAndy Adamson __be32 *savep, *bm_p; 5045029d105eSJ. Bruce Fields uint32_t attrlen, 5046dae100c2SFred Isaman bitmap[3] = {0}; 5047029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 5048029d105eSJ. Bruce Fields int status; 5049029d105eSJ. Bruce Fields 5050bf118a34SAndy Adamson res->acl_len = 0; 5051029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5052029d105eSJ. Bruce Fields goto out; 5053bf118a34SAndy Adamson bm_p = xdr->p; 5054029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5055029d105eSJ. Bruce Fields goto out; 5056029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5057029d105eSJ. Bruce Fields goto out; 5058029d105eSJ. Bruce Fields 5059029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5060029d105eSJ. Bruce Fields return -EIO; 5061029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5062bcecff77SChuck Lever size_t hdrlen; 5063bcecff77SChuck Lever u32 recvd; 5064029d105eSJ. Bruce Fields 5065bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5066bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5067bf118a34SAndy Adamson * variable length bitmaps.*/ 5068bf118a34SAndy Adamson xdr->p = bm_p; 5069bf118a34SAndy Adamson res->acl_data_offset = be32_to_cpup(bm_p) + 2; 5070bf118a34SAndy Adamson res->acl_data_offset <<= 2; 5071bf118a34SAndy Adamson 5072029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 5073029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 5074029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 5075bf118a34SAndy Adamson attrlen += res->acl_data_offset; 5076029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 5077029d105eSJ. Bruce Fields if (attrlen > recvd) { 5078bf118a34SAndy Adamson if (res->acl_flags & NFS4_ACL_LEN_REQUEST) { 5079bf118a34SAndy Adamson /* getxattr interface called with a NULL buf */ 5080bf118a34SAndy Adamson res->acl_len = attrlen; 5081bf118a34SAndy Adamson goto out; 5082bf118a34SAndy Adamson } 5083bf118a34SAndy Adamson dprintk("NFS: acl reply: attrlen %u > recvd %u\n", 5084029d105eSJ. Bruce Fields attrlen, recvd); 5085029d105eSJ. Bruce Fields return -EINVAL; 5086029d105eSJ. Bruce Fields } 5087029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 5088bf118a34SAndy Adamson res->acl_len = attrlen; 50898c233cf9SJ. Bruce Fields } else 50908c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5091029d105eSJ. Bruce Fields 5092029d105eSJ. Bruce Fields out: 5093029d105eSJ. Bruce Fields return status; 5094029d105eSJ. Bruce Fields } 5095029d105eSJ. Bruce Fields 50961da177e4SLinus Torvalds static int 50971da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 50981da177e4SLinus Torvalds { 50991da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 51001da177e4SLinus Torvalds } 51011da177e4SLinus Torvalds 51029e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 51031da177e4SLinus Torvalds { 51048687b63aSAl Viro __be32 *p; 51051da177e4SLinus Torvalds uint32_t bmlen; 51061da177e4SLinus Torvalds int status; 51071da177e4SLinus Torvalds 51081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 51091da177e4SLinus Torvalds if (status) 51101da177e4SLinus Torvalds return status; 5111c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5112c0eae66eSBenny Halevy if (unlikely(!p)) 5113c0eae66eSBenny Halevy goto out_overflow; 5114cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5115c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5116c0eae66eSBenny Halevy if (likely(p)) 51171da177e4SLinus Torvalds return 0; 5118c0eae66eSBenny Halevy out_overflow: 5119c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5120c0eae66eSBenny Halevy return -EIO; 51211da177e4SLinus Torvalds } 51221da177e4SLinus Torvalds 5123bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 51241da177e4SLinus Torvalds { 51258687b63aSAl Viro __be32 *p; 51261da177e4SLinus Torvalds uint32_t opnum; 51271da177e4SLinus Torvalds int32_t nfserr; 51281da177e4SLinus Torvalds 5129c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5130c0eae66eSBenny Halevy if (unlikely(!p)) 5131c0eae66eSBenny Halevy goto out_overflow; 51326f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51331da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5134fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51351da177e4SLinus Torvalds " %d\n", opnum); 51361da177e4SLinus Torvalds return -EIO; 51371da177e4SLinus Torvalds } 5138cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51391da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5140c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5141c0eae66eSBenny Halevy if (unlikely(!p)) 5142c0eae66eSBenny Halevy goto out_overflow; 5143bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5144bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51451da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51461da177e4SLinus Torvalds uint32_t len; 51471da177e4SLinus Torvalds 51481da177e4SLinus Torvalds /* skip netid string */ 5149c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5150c0eae66eSBenny Halevy if (unlikely(!p)) 5151c0eae66eSBenny Halevy goto out_overflow; 5152cccddf4fSBenny Halevy len = be32_to_cpup(p); 5153c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5154c0eae66eSBenny Halevy if (unlikely(!p)) 5155c0eae66eSBenny Halevy goto out_overflow; 51561da177e4SLinus Torvalds 51571da177e4SLinus Torvalds /* skip uaddr string */ 5158c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5159c0eae66eSBenny Halevy if (unlikely(!p)) 5160c0eae66eSBenny Halevy goto out_overflow; 5161cccddf4fSBenny Halevy len = be32_to_cpup(p); 5162c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5163c0eae66eSBenny Halevy if (unlikely(!p)) 5164c0eae66eSBenny Halevy goto out_overflow; 51651da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51661da177e4SLinus Torvalds } else 5167856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51681da177e4SLinus Torvalds 51691da177e4SLinus Torvalds return 0; 5170c0eae66eSBenny Halevy out_overflow: 5171c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5172c0eae66eSBenny Halevy return -EIO; 51731da177e4SLinus Torvalds } 51741da177e4SLinus Torvalds 51751da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51761da177e4SLinus Torvalds { 51771da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51781da177e4SLinus Torvalds } 51791da177e4SLinus Torvalds 51801da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51811da177e4SLinus Torvalds { 51828687b63aSAl Viro __be32 *p; 51831da177e4SLinus Torvalds int status; 51841da177e4SLinus Torvalds 51851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51861da177e4SLinus Torvalds if (status) 51871da177e4SLinus Torvalds return status; 51881da177e4SLinus Torvalds 5189c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 5190c0eae66eSBenny Halevy if (unlikely(!p)) 5191c0eae66eSBenny Halevy goto out_overflow; 51926f723f77SBenny Halevy res->count = be32_to_cpup(p++); 51936f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 519499398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 51951da177e4SLinus Torvalds return 0; 5196c0eae66eSBenny Halevy out_overflow: 5197c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5198c0eae66eSBenny Halevy return -EIO; 51991da177e4SLinus Torvalds } 52001da177e4SLinus Torvalds 52011da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 52021da177e4SLinus Torvalds { 52031da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 52041da177e4SLinus Torvalds } 52051da177e4SLinus Torvalds 52065a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 52075a5ea0d4SBryan Schumaker { 52085a5ea0d4SBryan Schumaker __be32 *p; 52095a5ea0d4SBryan Schumaker 52105a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52115a5ea0d4SBryan Schumaker if (unlikely(!p)) 52125a5ea0d4SBryan Schumaker goto out_overflow; 52135a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 52145a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 52155a5ea0d4SBryan Schumaker goto out_err; 52165a5ea0d4SBryan Schumaker 52175a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 52185a5ea0d4SBryan Schumaker if (unlikely(!p)) 52195a5ea0d4SBryan Schumaker goto out_overflow; 52205a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 52215a5ea0d4SBryan Schumaker 52225a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 52235a5ea0d4SBryan Schumaker if (unlikely(!p)) 52245a5ea0d4SBryan Schumaker goto out_overflow; 52255a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 52265a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 52275a5ea0d4SBryan Schumaker 52285a5ea0d4SBryan Schumaker return 0; 52295a5ea0d4SBryan Schumaker 52305a5ea0d4SBryan Schumaker out_overflow: 52315a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52325a5ea0d4SBryan Schumaker return -EIO; 52335a5ea0d4SBryan Schumaker out_err: 52345a5ea0d4SBryan Schumaker return -EINVAL; 52355a5ea0d4SBryan Schumaker } 52365a5ea0d4SBryan Schumaker 52375a5ea0d4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52385a5ea0d4SBryan Schumaker { 52395a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 52405a5ea0d4SBryan Schumaker int status; 52415a5ea0d4SBryan Schumaker __be32 *p; 5242c3dfc280SBryan Schumaker int i, num_flavors; 52435a5ea0d4SBryan Schumaker 52445a5ea0d4SBryan Schumaker status = decode_op_hdr(xdr, OP_SECINFO); 5245613e901eSBryan Schumaker if (status) 5246613e901eSBryan Schumaker goto out; 52475a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52485a5ea0d4SBryan Schumaker if (unlikely(!p)) 52495a5ea0d4SBryan Schumaker goto out_overflow; 52505a5ea0d4SBryan Schumaker 5251c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5252c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5253c3dfc280SBryan Schumaker 5254c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52555a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5256c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52575a5ea0d4SBryan Schumaker break; 52585a5ea0d4SBryan Schumaker 52595a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52605a5ea0d4SBryan Schumaker if (unlikely(!p)) 52615a5ea0d4SBryan Schumaker goto out_overflow; 52625a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52635a5ea0d4SBryan Schumaker 52645a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5265613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5266613e901eSBryan Schumaker if (status) 5267613e901eSBryan Schumaker goto out; 52685a5ea0d4SBryan Schumaker } 5269c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52705a5ea0d4SBryan Schumaker } 52715a5ea0d4SBryan Schumaker 5272613e901eSBryan Schumaker out: 5273613e901eSBryan Schumaker return status; 52745a5ea0d4SBryan Schumaker out_overflow: 52755a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52765a5ea0d4SBryan Schumaker return -EIO; 52775a5ea0d4SBryan Schumaker } 52785a5ea0d4SBryan Schumaker 527999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 528099fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 528199fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 528299fe60d0SBenny Halevy { 528399fe60d0SBenny Halevy __be32 *p; 528499fe60d0SBenny Halevy uint32_t dummy; 52852460ba57SBenny Halevy char *dummy_str; 528699fe60d0SBenny Halevy int status; 528799fe60d0SBenny Halevy struct nfs_client *clp = res->client; 52887d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 528999fe60d0SBenny Halevy 529099fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 529199fe60d0SBenny Halevy if (status) 529299fe60d0SBenny Halevy return status; 529399fe60d0SBenny Halevy 5294c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5295c0eae66eSBenny Halevy if (unlikely(!p)) 5296c0eae66eSBenny Halevy goto out_overflow; 5297114f64b5SAndy Adamson xdr_decode_hyper(p, &clp->cl_clientid); 5298c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5299c0eae66eSBenny Halevy if (unlikely(!p)) 5300c0eae66eSBenny Halevy goto out_overflow; 53016f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 53026f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 530399fe60d0SBenny Halevy 530499fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5305cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 530699fe60d0SBenny Halevy if (dummy != SP4_NONE) 530799fe60d0SBenny Halevy return -EIO; 530899fe60d0SBenny Halevy 530999fe60d0SBenny Halevy /* Throw away minor_id */ 5310c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5311c0eae66eSBenny Halevy if (unlikely(!p)) 5312c0eae66eSBenny Halevy goto out_overflow; 531399fe60d0SBenny Halevy 531499fe60d0SBenny Halevy /* Throw away Major id */ 53152460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53162460ba57SBenny Halevy if (unlikely(status)) 53172460ba57SBenny Halevy return status; 531899fe60d0SBenny Halevy 531978fe0f41SWeston Andros Adamson /* Save server_scope */ 53202460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53212460ba57SBenny Halevy if (unlikely(status)) 53222460ba57SBenny Halevy return status; 532399fe60d0SBenny Halevy 532478fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 532578fe0f41SWeston Andros Adamson return -EIO; 532678fe0f41SWeston Andros Adamson 532778fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 532878fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 532978fe0f41SWeston Andros Adamson 53307d2ed9acSWeston Andros Adamson /* Implementation Id */ 53317d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 53327d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53337d2ed9acSWeston Andros Adamson goto out_overflow; 53347d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 53357d2ed9acSWeston Andros Adamson 53367d2ed9acSWeston Andros Adamson if (impl_id_count) { 53377d2ed9acSWeston Andros Adamson /* nii_domain */ 53382460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53392460ba57SBenny Halevy if (unlikely(status)) 53402460ba57SBenny Halevy return status; 53417d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53427d2ed9acSWeston Andros Adamson return -EIO; 53437d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 534499fe60d0SBenny Halevy 53457d2ed9acSWeston Andros Adamson /* nii_name */ 53467d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53477d2ed9acSWeston Andros Adamson if (unlikely(status)) 53487d2ed9acSWeston Andros Adamson return status; 53497d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53507d2ed9acSWeston Andros Adamson return -EIO; 53517d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 53527d2ed9acSWeston Andros Adamson 53537d2ed9acSWeston Andros Adamson /* nii_date */ 53547d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 53557d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53567d2ed9acSWeston Andros Adamson goto out_overflow; 53577d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 53587d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 53597d2ed9acSWeston Andros Adamson 53607d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 53617d2ed9acSWeston Andros Adamson } 536299fe60d0SBenny Halevy return 0; 5363c0eae66eSBenny Halevy out_overflow: 5364c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5365c0eae66eSBenny Halevy return -EIO; 536699fe60d0SBenny Halevy } 5367fc931582SAndy Adamson 5368fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5369fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5370fc931582SAndy Adamson { 5371fc931582SAndy Adamson __be32 *p; 5372c9c30dd5SBenny Halevy u32 nr_attrs, val; 5373fc931582SAndy Adamson 5374c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5375c0eae66eSBenny Halevy if (unlikely(!p)) 5376c0eae66eSBenny Halevy goto out_overflow; 5377c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5378c9c30dd5SBenny Halevy if (val) 5379c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 53806f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 53816f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 53826f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 53836f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 53846f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5385cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5386fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5387a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5388a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5389fc931582SAndy Adamson return -EINVAL; 5390fc931582SAndy Adamson } 5391c0eae66eSBenny Halevy if (nr_attrs == 1) { 5392c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5393c0eae66eSBenny Halevy if (unlikely(!p)) 5394c0eae66eSBenny Halevy goto out_overflow; 5395c0eae66eSBenny Halevy } 5396fc931582SAndy Adamson return 0; 5397c0eae66eSBenny Halevy out_overflow: 5398c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5399c0eae66eSBenny Halevy return -EIO; 5400fc931582SAndy Adamson } 5401fc931582SAndy Adamson 5402e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5403e78291e4SBenny Halevy { 5404e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5405fc931582SAndy Adamson } 5406fc931582SAndy Adamson 5407fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5408fc931582SAndy Adamson struct nfs41_create_session_res *res) 5409fc931582SAndy Adamson { 5410fc931582SAndy Adamson __be32 *p; 5411fc931582SAndy Adamson int status; 5412fc931582SAndy Adamson struct nfs_client *clp = res->client; 5413fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5414fc931582SAndy Adamson 5415fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5416e78291e4SBenny Halevy if (!status) 5417e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5418e78291e4SBenny Halevy if (unlikely(status)) 5419fc931582SAndy Adamson return status; 5420fc931582SAndy Adamson 5421fc931582SAndy Adamson /* seqid, flags */ 5422c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5423c0eae66eSBenny Halevy if (unlikely(!p)) 5424c0eae66eSBenny Halevy goto out_overflow; 54256f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5426cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5427fc931582SAndy Adamson 5428fc931582SAndy Adamson /* Channel attributes */ 5429fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5430fc931582SAndy Adamson if (!status) 5431fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5432fc931582SAndy Adamson return status; 5433c0eae66eSBenny Halevy out_overflow: 5434c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5435c0eae66eSBenny Halevy return -EIO; 5436fc931582SAndy Adamson } 54370f3e66c6SAndy Adamson 54380f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 54390f3e66c6SAndy Adamson { 54400f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 54410f3e66c6SAndy Adamson } 544218019753SRicardo Labiaga 544318019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 544418019753SRicardo Labiaga { 544518019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 544618019753SRicardo Labiaga } 544799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 544899fe60d0SBenny Halevy 54499b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 54509b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 54519b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 54529b7b9fccSAndy Adamson { 54539b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5454fc01cea9SAndy Adamson struct nfs4_sessionid id; 5455fc01cea9SAndy Adamson u32 dummy; 5456fc01cea9SAndy Adamson int status; 5457fc01cea9SAndy Adamson __be32 *p; 5458fc01cea9SAndy Adamson 54599b7b9fccSAndy Adamson if (!res->sr_session) 54609b7b9fccSAndy Adamson return 0; 54619b7b9fccSAndy Adamson 5462fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5463e78291e4SBenny Halevy if (!status) 5464e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5465e78291e4SBenny Halevy if (unlikely(status)) 5466fc01cea9SAndy Adamson goto out_err; 54679b7b9fccSAndy Adamson 5468fc01cea9SAndy Adamson /* 5469fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5470fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5471fc01cea9SAndy Adamson */ 5472fdcb4577STrond Myklebust status = -EREMOTEIO; 5473fc01cea9SAndy Adamson 5474fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 5475fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5476fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5477fc01cea9SAndy Adamson goto out_err; 5478fc01cea9SAndy Adamson } 5479e78291e4SBenny Halevy 5480c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5481c0eae66eSBenny Halevy if (unlikely(!p)) 5482c0eae66eSBenny Halevy goto out_overflow; 5483e78291e4SBenny Halevy 5484fc01cea9SAndy Adamson /* seqid */ 54856f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5486dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5487fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5488fc01cea9SAndy Adamson goto out_err; 5489fc01cea9SAndy Adamson } 5490fc01cea9SAndy Adamson /* slot id */ 54916f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5492dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 5493fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5494fc01cea9SAndy Adamson goto out_err; 5495fc01cea9SAndy Adamson } 5496fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 54976f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5498fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 54996f723f77SBenny Halevy dummy = be32_to_cpup(p++); 55000629e370SAlexandros Batsakis /* result flags */ 55010629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5502fc01cea9SAndy Adamson status = 0; 5503fc01cea9SAndy Adamson out_err: 5504fc01cea9SAndy Adamson res->sr_status = status; 5505fc01cea9SAndy Adamson return status; 5506c0eae66eSBenny Halevy out_overflow: 5507c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5508c0eae66eSBenny Halevy status = -EIO; 5509c0eae66eSBenny Halevy goto out_err; 5510fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 55119b7b9fccSAndy Adamson return 0; 5512fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 55139b7b9fccSAndy Adamson } 55149b7b9fccSAndy Adamson 5515b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 55167f11d8d3SAndy Adamson /* 55177f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 55187f11d8d3SAndy Adamson */ 55197f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 55207f11d8d3SAndy Adamson struct pnfs_devicelist *res) 55217f11d8d3SAndy Adamson { 55227f11d8d3SAndy Adamson __be32 *p; 55237f11d8d3SAndy Adamson int status, i; 55247f11d8d3SAndy Adamson struct nfs_writeverf verftemp; 55257f11d8d3SAndy Adamson 55267f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 55277f11d8d3SAndy Adamson if (status) 55287f11d8d3SAndy Adamson return status; 55297f11d8d3SAndy Adamson 55307f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 55317f11d8d3SAndy Adamson if (unlikely(!p)) 55327f11d8d3SAndy Adamson goto out_overflow; 55337f11d8d3SAndy Adamson 55347f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 55357f11d8d3SAndy Adamson p += 2; 55367f11d8d3SAndy Adamson 55377f11d8d3SAndy Adamson /* Read verifier */ 55387f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8); 55397f11d8d3SAndy Adamson 55407f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 55417f11d8d3SAndy Adamson 55427f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 55437f11d8d3SAndy Adamson 55447f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5545a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 55467f11d8d3SAndy Adamson __func__, res->num_devs); 55477f11d8d3SAndy Adamson return -EIO; 55487f11d8d3SAndy Adamson } 55497f11d8d3SAndy Adamson 55507f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 55517f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 55527f11d8d3SAndy Adamson if (unlikely(!p)) 55537f11d8d3SAndy Adamson goto out_overflow; 55547f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 55557f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 55567f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 55577f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 55587f11d8d3SAndy Adamson return 0; 55597f11d8d3SAndy Adamson out_overflow: 55607f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 55617f11d8d3SAndy Adamson return -EIO; 55627f11d8d3SAndy Adamson } 5563b1f69b75SAndy Adamson 5564b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5565b1f69b75SAndy Adamson struct pnfs_device *pdev) 5566b1f69b75SAndy Adamson { 5567b1f69b75SAndy Adamson __be32 *p; 5568b1f69b75SAndy Adamson uint32_t len, type; 5569b1f69b75SAndy Adamson int status; 5570b1f69b75SAndy Adamson 5571b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5572b1f69b75SAndy Adamson if (status) { 5573b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5574b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5575b1f69b75SAndy Adamson if (unlikely(!p)) 5576b1f69b75SAndy Adamson goto out_overflow; 5577b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5578b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5579b1f69b75SAndy Adamson __func__, pdev->mincount); 5580b1f69b75SAndy Adamson } 5581b1f69b75SAndy Adamson return status; 5582b1f69b75SAndy Adamson } 5583b1f69b75SAndy Adamson 5584b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5585b1f69b75SAndy Adamson if (unlikely(!p)) 5586b1f69b75SAndy Adamson goto out_overflow; 5587b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5588b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5589b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5590b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5591b1f69b75SAndy Adamson return -EINVAL; 5592b1f69b75SAndy Adamson } 5593b1f69b75SAndy Adamson /* 5594b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5595b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5596b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5597b1f69b75SAndy Adamson */ 5598b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5599b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 5600b1f69b75SAndy Adamson 5601b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5602b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5603b1f69b75SAndy Adamson if (unlikely(!p)) 5604b1f69b75SAndy Adamson goto out_overflow; 5605b1f69b75SAndy Adamson len = be32_to_cpup(p); 5606b1f69b75SAndy Adamson if (len) { 5607ead00597SChuck Lever uint32_t i; 5608b1f69b75SAndy Adamson 5609b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5610b1f69b75SAndy Adamson if (unlikely(!p)) 5611b1f69b75SAndy Adamson goto out_overflow; 5612b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5613b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5614b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5615b1f69b75SAndy Adamson __func__); 5616b1f69b75SAndy Adamson return -EIO; 5617b1f69b75SAndy Adamson } 5618b1f69b75SAndy Adamson } 5619b1f69b75SAndy Adamson } 5620b1f69b75SAndy Adamson return 0; 5621b1f69b75SAndy Adamson out_overflow: 5622b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5623b1f69b75SAndy Adamson return -EIO; 5624b1f69b75SAndy Adamson } 5625b1f69b75SAndy Adamson 5626b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5627b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5628b1f69b75SAndy Adamson { 5629b1f69b75SAndy Adamson __be32 *p; 5630b1f69b75SAndy Adamson int status; 5631b1f69b75SAndy Adamson u32 layout_count; 563235124a09SWeston Andros Adamson struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 563335124a09SWeston Andros Adamson struct kvec *iov = rcvbuf->head; 563435124a09SWeston Andros Adamson u32 hdrlen, recvd; 5635b1f69b75SAndy Adamson 5636b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5637b1f69b75SAndy Adamson if (status) 5638b1f69b75SAndy Adamson return status; 5639b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 5640b1f69b75SAndy Adamson if (unlikely(!p)) 5641b1f69b75SAndy Adamson goto out_overflow; 5642b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 5643b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 5644b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5645b1f69b75SAndy Adamson if (!layout_count) { 5646b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5647b1f69b75SAndy Adamson __func__); 5648b1f69b75SAndy Adamson return -EINVAL; 5649b1f69b75SAndy Adamson } 5650b1f69b75SAndy Adamson 565135124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5652b1f69b75SAndy Adamson if (unlikely(!p)) 5653b1f69b75SAndy Adamson goto out_overflow; 5654b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5655b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5656b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5657b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 565835124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5659b1f69b75SAndy Adamson 5660b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5661b1f69b75SAndy Adamson __func__, 5662b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5663b1f69b75SAndy Adamson (unsigned long)res->range.length, 5664b1f69b75SAndy Adamson res->range.iomode, 5665b1f69b75SAndy Adamson res->type, 566635124a09SWeston Andros Adamson res->layoutp->len); 5667b1f69b75SAndy Adamson 566835124a09SWeston Andros Adamson hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 566935124a09SWeston Andros Adamson recvd = req->rq_rcv_buf.len - hdrlen; 567035124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 567135124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 567235124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 567335124a09SWeston Andros Adamson res->layoutp->len, recvd); 567435124a09SWeston Andros Adamson return -EINVAL; 567535124a09SWeston Andros Adamson } 567635124a09SWeston Andros Adamson 567735124a09SWeston Andros Adamson xdr_read_pages(xdr, res->layoutp->len); 5678b1f69b75SAndy Adamson 5679b1f69b75SAndy Adamson if (layout_count > 1) { 5680b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5681b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5682b1f69b75SAndy Adamson * the client may see a response that is less than the 5683b1f69b75SAndy Adamson * minimum it requested. 5684b1f69b75SAndy Adamson */ 5685b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5686b1f69b75SAndy Adamson __func__, layout_count); 5687b1f69b75SAndy Adamson } 5688b1f69b75SAndy Adamson 5689b1f69b75SAndy Adamson return 0; 5690b1f69b75SAndy Adamson out_overflow: 5691b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5692b1f69b75SAndy Adamson return -EIO; 5693b1f69b75SAndy Adamson } 5694863a3c6cSAndy Adamson 5695cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5696cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5697cbe82603SBenny Halevy { 5698cbe82603SBenny Halevy __be32 *p; 5699cbe82603SBenny Halevy int status; 5700cbe82603SBenny Halevy 5701cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5702cbe82603SBenny Halevy if (status) 5703cbe82603SBenny Halevy return status; 5704cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5705cbe82603SBenny Halevy if (unlikely(!p)) 5706cbe82603SBenny Halevy goto out_overflow; 5707cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5708cbe82603SBenny Halevy if (res->lrs_present) 5709cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5710cbe82603SBenny Halevy return status; 5711cbe82603SBenny Halevy out_overflow: 5712cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5713cbe82603SBenny Halevy return -EIO; 5714cbe82603SBenny Halevy } 5715cbe82603SBenny Halevy 5716863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5717863a3c6cSAndy Adamson struct rpc_rqst *req, 5718863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5719863a3c6cSAndy Adamson { 5720863a3c6cSAndy Adamson __be32 *p; 5721863a3c6cSAndy Adamson __u32 sizechanged; 5722863a3c6cSAndy Adamson int status; 5723863a3c6cSAndy Adamson 5724863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5725db29c089SAndy Adamson res->status = status; 5726863a3c6cSAndy Adamson if (status) 5727863a3c6cSAndy Adamson return status; 5728863a3c6cSAndy Adamson 5729863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5730863a3c6cSAndy Adamson if (unlikely(!p)) 5731863a3c6cSAndy Adamson goto out_overflow; 5732863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5733863a3c6cSAndy Adamson 5734863a3c6cSAndy Adamson if (sizechanged) { 5735863a3c6cSAndy Adamson /* throw away new size */ 5736863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5737863a3c6cSAndy Adamson if (unlikely(!p)) 5738863a3c6cSAndy Adamson goto out_overflow; 5739863a3c6cSAndy Adamson } 5740863a3c6cSAndy Adamson return 0; 5741863a3c6cSAndy Adamson out_overflow: 5742863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5743863a3c6cSAndy Adamson return -EIO; 5744863a3c6cSAndy Adamson } 57457d974794SBryan Schumaker 57467d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 57477d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 57487d974794SBryan Schumaker { 57497d974794SBryan Schumaker __be32 *p; 57507d974794SBryan Schumaker int status; 57517d974794SBryan Schumaker int num_res; 57527d974794SBryan Schumaker 57537d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 57547d974794SBryan Schumaker if (status) 57557d974794SBryan Schumaker return status; 57567d974794SBryan Schumaker 57577d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 57587d974794SBryan Schumaker if (unlikely(!p)) 57597d974794SBryan Schumaker goto out_overflow; 57607d974794SBryan Schumaker num_res = be32_to_cpup(p++); 57617d974794SBryan Schumaker if (num_res != 1) 57627d974794SBryan Schumaker goto out; 57637d974794SBryan Schumaker 57647d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 57657d974794SBryan Schumaker if (unlikely(!p)) 57667d974794SBryan Schumaker goto out_overflow; 57677d974794SBryan Schumaker res->status = be32_to_cpup(p++); 57681cab0652SBryan Schumaker 57691cab0652SBryan Schumaker return status; 57707d974794SBryan Schumaker out_overflow: 57717d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 57727d974794SBryan Schumaker out: 57737d974794SBryan Schumaker return -EIO; 57747d974794SBryan Schumaker } 57759aeda35fSBryan Schumaker 57769aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 57779aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 57789aeda35fSBryan Schumaker { 57799aeda35fSBryan Schumaker __be32 *p; 57809aeda35fSBryan Schumaker int status; 57819aeda35fSBryan Schumaker 57829aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 57839aeda35fSBryan Schumaker if (status) 57849aeda35fSBryan Schumaker return status; 57859aeda35fSBryan Schumaker 57869aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 57879aeda35fSBryan Schumaker if (unlikely(!p)) 57889aeda35fSBryan Schumaker goto out_overflow; 57899aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 57909aeda35fSBryan Schumaker return res->status; 57919aeda35fSBryan Schumaker out_overflow: 57929aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 57939aeda35fSBryan Schumaker return -EIO; 57949aeda35fSBryan Schumaker } 5795b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5796b1f69b75SAndy Adamson 57971da177e4SLinus Torvalds /* 579849c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 579949c2559eSBenny Halevy */ 580049c2559eSBenny Halevy 580149c2559eSBenny Halevy /* 58021da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 58031da177e4SLinus Torvalds */ 5804bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5805bf269551SChuck Lever struct xdr_stream *xdr, 5806bf269551SChuck Lever struct nfs_closeres *res) 58071da177e4SLinus Torvalds { 58081da177e4SLinus Torvalds struct compound_hdr hdr; 58091da177e4SLinus Torvalds int status; 58101da177e4SLinus Torvalds 5811bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58121da177e4SLinus Torvalds if (status) 58131da177e4SLinus Torvalds goto out; 5814bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58159b7b9fccSAndy Adamson if (status) 58169b7b9fccSAndy Adamson goto out; 5817bf269551SChuck Lever status = decode_putfh(xdr); 58181da177e4SLinus Torvalds if (status) 58191da177e4SLinus Torvalds goto out; 5820bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5821516a6af6STrond Myklebust if (status != 0) 5822516a6af6STrond Myklebust goto out; 58236926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58241da177e4SLinus Torvalds out: 58251da177e4SLinus Torvalds return status; 58261da177e4SLinus Torvalds } 58271da177e4SLinus Torvalds 58281da177e4SLinus Torvalds /* 58291da177e4SLinus Torvalds * Decode ACCESS response 58301da177e4SLinus Torvalds */ 5831bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5832bf269551SChuck Lever struct nfs4_accessres *res) 58331da177e4SLinus Torvalds { 58341da177e4SLinus Torvalds struct compound_hdr hdr; 58351da177e4SLinus Torvalds int status; 58361da177e4SLinus Torvalds 5837bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58389b7b9fccSAndy Adamson if (status) 58399b7b9fccSAndy Adamson goto out; 5840bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58419b7b9fccSAndy Adamson if (status) 58421da177e4SLinus Torvalds goto out; 5843bf269551SChuck Lever status = decode_putfh(xdr); 584476b32999STrond Myklebust if (status != 0) 584576b32999STrond Myklebust goto out; 5846bf269551SChuck Lever status = decode_access(xdr, res); 584776b32999STrond Myklebust if (status != 0) 584876b32999STrond Myklebust goto out; 58496926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58501da177e4SLinus Torvalds out: 58511da177e4SLinus Torvalds return status; 58521da177e4SLinus Torvalds } 58531da177e4SLinus Torvalds 58541da177e4SLinus Torvalds /* 58551da177e4SLinus Torvalds * Decode LOOKUP response 58561da177e4SLinus Torvalds */ 5857bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5858bf269551SChuck Lever struct nfs4_lookup_res *res) 58591da177e4SLinus Torvalds { 58601da177e4SLinus Torvalds struct compound_hdr hdr; 58611da177e4SLinus Torvalds int status; 58621da177e4SLinus Torvalds 5863bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58649b7b9fccSAndy Adamson if (status) 58659b7b9fccSAndy Adamson goto out; 5866bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58679b7b9fccSAndy Adamson if (status) 58681da177e4SLinus Torvalds goto out; 5869bf269551SChuck Lever status = decode_putfh(xdr); 5870bf269551SChuck Lever if (status) 58711da177e4SLinus Torvalds goto out; 5872bf269551SChuck Lever status = decode_lookup(xdr); 5873bf269551SChuck Lever if (status) 58741da177e4SLinus Torvalds goto out; 5875bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5876bf269551SChuck Lever if (status) 58771da177e4SLinus Torvalds goto out; 58786926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 58791da177e4SLinus Torvalds out: 58801da177e4SLinus Torvalds return status; 58811da177e4SLinus Torvalds } 58821da177e4SLinus Torvalds 58831da177e4SLinus Torvalds /* 58841da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 58851da177e4SLinus Torvalds */ 5886bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5887bf269551SChuck Lever struct xdr_stream *xdr, 5888bf269551SChuck Lever struct nfs4_lookup_res *res) 58891da177e4SLinus Torvalds { 58901da177e4SLinus Torvalds struct compound_hdr hdr; 58911da177e4SLinus Torvalds int status; 58921da177e4SLinus Torvalds 5893bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58949b7b9fccSAndy Adamson if (status) 58959b7b9fccSAndy Adamson goto out; 5896bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58979b7b9fccSAndy Adamson if (status) 58981da177e4SLinus Torvalds goto out; 5899bf269551SChuck Lever status = decode_putrootfh(xdr); 5900bf269551SChuck Lever if (status) 59011da177e4SLinus Torvalds goto out; 5902bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5903bf269551SChuck Lever if (status == 0) 59046926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59051da177e4SLinus Torvalds out: 59061da177e4SLinus Torvalds return status; 59071da177e4SLinus Torvalds } 59081da177e4SLinus Torvalds 59091da177e4SLinus Torvalds /* 59101da177e4SLinus Torvalds * Decode REMOVE response 59111da177e4SLinus Torvalds */ 5912bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5913bf269551SChuck Lever struct nfs_removeres *res) 59141da177e4SLinus Torvalds { 59151da177e4SLinus Torvalds struct compound_hdr hdr; 59161da177e4SLinus Torvalds int status; 59171da177e4SLinus Torvalds 5918bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59199b7b9fccSAndy Adamson if (status) 59209b7b9fccSAndy Adamson goto out; 5921bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59229b7b9fccSAndy Adamson if (status) 59231da177e4SLinus Torvalds goto out; 5924bf269551SChuck Lever status = decode_putfh(xdr); 5925bf269551SChuck Lever if (status) 592616e42959STrond Myklebust goto out; 5927bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 5928bf269551SChuck Lever if (status) 592916e42959STrond Myklebust goto out; 59306926afd1STrond Myklebust decode_getfattr(xdr, res->dir_attr, res->server); 59311da177e4SLinus Torvalds out: 59321da177e4SLinus Torvalds return status; 59331da177e4SLinus Torvalds } 59341da177e4SLinus Torvalds 59351da177e4SLinus Torvalds /* 59361da177e4SLinus Torvalds * Decode RENAME response 59371da177e4SLinus Torvalds */ 5938bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5939bf269551SChuck Lever struct nfs_renameres *res) 59401da177e4SLinus Torvalds { 59411da177e4SLinus Torvalds struct compound_hdr hdr; 59421da177e4SLinus Torvalds int status; 59431da177e4SLinus Torvalds 5944bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59459b7b9fccSAndy Adamson if (status) 59469b7b9fccSAndy Adamson goto out; 5947bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59489b7b9fccSAndy Adamson if (status) 59491da177e4SLinus Torvalds goto out; 5950bf269551SChuck Lever status = decode_putfh(xdr); 5951bf269551SChuck Lever if (status) 59521da177e4SLinus Torvalds goto out; 5953bf269551SChuck Lever status = decode_savefh(xdr); 5954bf269551SChuck Lever if (status) 59551da177e4SLinus Torvalds goto out; 5956bf269551SChuck Lever status = decode_putfh(xdr); 5957bf269551SChuck Lever if (status) 59581da177e4SLinus Torvalds goto out; 5959bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 5960bf269551SChuck Lever if (status) 59616caf2c82STrond Myklebust goto out; 59626caf2c82STrond Myklebust /* Current FH is target directory */ 59636926afd1STrond Myklebust if (decode_getfattr(xdr, res->new_fattr, res->server)) 59646caf2c82STrond Myklebust goto out; 5965bf269551SChuck Lever status = decode_restorefh(xdr); 5966bf269551SChuck Lever if (status) 59676caf2c82STrond Myklebust goto out; 59686926afd1STrond Myklebust decode_getfattr(xdr, res->old_fattr, res->server); 59691da177e4SLinus Torvalds out: 59701da177e4SLinus Torvalds return status; 59711da177e4SLinus Torvalds } 59721da177e4SLinus Torvalds 59731da177e4SLinus Torvalds /* 59741da177e4SLinus Torvalds * Decode LINK response 59751da177e4SLinus Torvalds */ 5976bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5977bf269551SChuck Lever struct nfs4_link_res *res) 59781da177e4SLinus Torvalds { 59791da177e4SLinus Torvalds struct compound_hdr hdr; 59801da177e4SLinus Torvalds int status; 59811da177e4SLinus Torvalds 5982bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59839b7b9fccSAndy Adamson if (status) 59849b7b9fccSAndy Adamson goto out; 5985bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59869b7b9fccSAndy Adamson if (status) 59871da177e4SLinus Torvalds goto out; 5988bf269551SChuck Lever status = decode_putfh(xdr); 5989bf269551SChuck Lever if (status) 59901da177e4SLinus Torvalds goto out; 5991bf269551SChuck Lever status = decode_savefh(xdr); 5992bf269551SChuck Lever if (status) 59931da177e4SLinus Torvalds goto out; 5994bf269551SChuck Lever status = decode_putfh(xdr); 5995bf269551SChuck Lever if (status) 59961da177e4SLinus Torvalds goto out; 5997bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 5998bf269551SChuck Lever if (status) 599991ba2eeeSTrond Myklebust goto out; 600091ba2eeeSTrond Myklebust /* 600191ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 600291ba2eeeSTrond Myklebust * filehandle. 600391ba2eeeSTrond Myklebust */ 60046926afd1STrond Myklebust if (decode_getfattr(xdr, res->dir_attr, res->server)) 600591ba2eeeSTrond Myklebust goto out; 6006bf269551SChuck Lever status = decode_restorefh(xdr); 6007bf269551SChuck Lever if (status) 600891ba2eeeSTrond Myklebust goto out; 60096926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60101da177e4SLinus Torvalds out: 60111da177e4SLinus Torvalds return status; 60121da177e4SLinus Torvalds } 60131da177e4SLinus Torvalds 60141da177e4SLinus Torvalds /* 60151da177e4SLinus Torvalds * Decode CREATE response 60161da177e4SLinus Torvalds */ 6017bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6018bf269551SChuck Lever struct nfs4_create_res *res) 60191da177e4SLinus Torvalds { 60201da177e4SLinus Torvalds struct compound_hdr hdr; 60211da177e4SLinus Torvalds int status; 60221da177e4SLinus Torvalds 6023bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60249b7b9fccSAndy Adamson if (status) 60259b7b9fccSAndy Adamson goto out; 6026bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60279b7b9fccSAndy Adamson if (status) 60281da177e4SLinus Torvalds goto out; 6029bf269551SChuck Lever status = decode_putfh(xdr); 6030bf269551SChuck Lever if (status) 60311da177e4SLinus Torvalds goto out; 6032bf269551SChuck Lever status = decode_savefh(xdr); 6033bf269551SChuck Lever if (status) 603456ae19f3STrond Myklebust goto out; 6035bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6036bf269551SChuck Lever if (status) 60371da177e4SLinus Torvalds goto out; 6038bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6039bf269551SChuck Lever if (status) 60401da177e4SLinus Torvalds goto out; 60416926afd1STrond Myklebust if (decode_getfattr(xdr, res->fattr, res->server)) 604256ae19f3STrond Myklebust goto out; 6043bf269551SChuck Lever status = decode_restorefh(xdr); 6044bf269551SChuck Lever if (status) 604556ae19f3STrond Myklebust goto out; 60466926afd1STrond Myklebust decode_getfattr(xdr, res->dir_fattr, res->server); 60471da177e4SLinus Torvalds out: 60481da177e4SLinus Torvalds return status; 60491da177e4SLinus Torvalds } 60501da177e4SLinus Torvalds 60511da177e4SLinus Torvalds /* 60521da177e4SLinus Torvalds * Decode SYMLINK response 60531da177e4SLinus Torvalds */ 6054bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6055bf269551SChuck Lever struct nfs4_create_res *res) 60561da177e4SLinus Torvalds { 6057bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60581da177e4SLinus Torvalds } 60591da177e4SLinus Torvalds 60601da177e4SLinus Torvalds /* 60611da177e4SLinus Torvalds * Decode GETATTR response 60621da177e4SLinus Torvalds */ 6063bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6064bf269551SChuck Lever struct nfs4_getattr_res *res) 60651da177e4SLinus Torvalds { 60661da177e4SLinus Torvalds struct compound_hdr hdr; 60671da177e4SLinus Torvalds int status; 60681da177e4SLinus Torvalds 6069bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60701da177e4SLinus Torvalds if (status) 60711da177e4SLinus Torvalds goto out; 6072bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60739b7b9fccSAndy Adamson if (status) 60749b7b9fccSAndy Adamson goto out; 6075bf269551SChuck Lever status = decode_putfh(xdr); 60761da177e4SLinus Torvalds if (status) 60771da177e4SLinus Torvalds goto out; 60786926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 60791da177e4SLinus Torvalds out: 60801da177e4SLinus Torvalds return status; 60811da177e4SLinus Torvalds } 60821da177e4SLinus Torvalds 608323ec6965SJ. Bruce Fields /* 608423ec6965SJ. Bruce Fields * Encode an SETACL request 608523ec6965SJ. Bruce Fields */ 60869f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 60879f06c719SChuck Lever struct nfs_setaclargs *args) 608823ec6965SJ. Bruce Fields { 608923ec6965SJ. Bruce Fields struct compound_hdr hdr = { 609066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 609123ec6965SJ. Bruce Fields }; 609223ec6965SJ. Bruce Fields 60939f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 60949f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 60959f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 60969f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6097d017931cSAndy Adamson encode_nops(&hdr); 609823ec6965SJ. Bruce Fields } 609905d564feSAndy Adamson 610023ec6965SJ. Bruce Fields /* 610123ec6965SJ. Bruce Fields * Decode SETACL response 610223ec6965SJ. Bruce Fields */ 610323ec6965SJ. Bruce Fields static int 6104bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 610573c403a9SBenny Halevy struct nfs_setaclres *res) 610623ec6965SJ. Bruce Fields { 610723ec6965SJ. Bruce Fields struct compound_hdr hdr; 610823ec6965SJ. Bruce Fields int status; 610923ec6965SJ. Bruce Fields 6110bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 611123ec6965SJ. Bruce Fields if (status) 611223ec6965SJ. Bruce Fields goto out; 6113bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61149b7b9fccSAndy Adamson if (status) 61159b7b9fccSAndy Adamson goto out; 6116bf269551SChuck Lever status = decode_putfh(xdr); 611723ec6965SJ. Bruce Fields if (status) 611823ec6965SJ. Bruce Fields goto out; 6119bf269551SChuck Lever status = decode_setattr(xdr); 612023ec6965SJ. Bruce Fields out: 612123ec6965SJ. Bruce Fields return status; 612223ec6965SJ. Bruce Fields } 61231da177e4SLinus Torvalds 61241da177e4SLinus Torvalds /* 6125029d105eSJ. Bruce Fields * Decode GETACL response 6126029d105eSJ. Bruce Fields */ 6127029d105eSJ. Bruce Fields static int 6128bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6129663c79b3SBenny Halevy struct nfs_getaclres *res) 6130029d105eSJ. Bruce Fields { 6131029d105eSJ. Bruce Fields struct compound_hdr hdr; 6132029d105eSJ. Bruce Fields int status; 6133029d105eSJ. Bruce Fields 6134331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6135331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6136331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6137331818f1STrond Myklebust } 6138bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6139029d105eSJ. Bruce Fields if (status) 6140029d105eSJ. Bruce Fields goto out; 6141bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61429b7b9fccSAndy Adamson if (status) 61439b7b9fccSAndy Adamson goto out; 6144bf269551SChuck Lever status = decode_putfh(xdr); 6145029d105eSJ. Bruce Fields if (status) 6146029d105eSJ. Bruce Fields goto out; 6147bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6148029d105eSJ. Bruce Fields 6149029d105eSJ. Bruce Fields out: 6150029d105eSJ. Bruce Fields return status; 6151029d105eSJ. Bruce Fields } 6152029d105eSJ. Bruce Fields 6153029d105eSJ. Bruce Fields /* 61541da177e4SLinus Torvalds * Decode CLOSE response 61551da177e4SLinus Torvalds */ 6156bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6157bf269551SChuck Lever struct nfs_closeres *res) 61581da177e4SLinus Torvalds { 61591da177e4SLinus Torvalds struct compound_hdr hdr; 61601da177e4SLinus Torvalds int status; 61611da177e4SLinus Torvalds 6162bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61631da177e4SLinus Torvalds if (status) 61641da177e4SLinus Torvalds goto out; 6165bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61669b7b9fccSAndy Adamson if (status) 61679b7b9fccSAndy Adamson goto out; 6168bf269551SChuck Lever status = decode_putfh(xdr); 61691da177e4SLinus Torvalds if (status) 61701da177e4SLinus Torvalds goto out; 6171bf269551SChuck Lever status = decode_close(xdr, res); 6172516a6af6STrond Myklebust if (status != 0) 6173516a6af6STrond Myklebust goto out; 6174516a6af6STrond Myklebust /* 6175516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6176516a6af6STrond Myklebust * in which case the getattr call will fail with 6177516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6178516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6179516a6af6STrond Myklebust */ 61806926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 61811da177e4SLinus Torvalds out: 61821da177e4SLinus Torvalds return status; 61831da177e4SLinus Torvalds } 61841da177e4SLinus Torvalds 61851da177e4SLinus Torvalds /* 61861da177e4SLinus Torvalds * Decode OPEN response 61871da177e4SLinus Torvalds */ 6188bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6189bf269551SChuck Lever struct nfs_openres *res) 61901da177e4SLinus Torvalds { 61911da177e4SLinus Torvalds struct compound_hdr hdr; 61921da177e4SLinus Torvalds int status; 61931da177e4SLinus Torvalds 6194bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61951da177e4SLinus Torvalds if (status) 61961da177e4SLinus Torvalds goto out; 6197bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61989b7b9fccSAndy Adamson if (status) 61999b7b9fccSAndy Adamson goto out; 6200bf269551SChuck Lever status = decode_putfh(xdr); 62011da177e4SLinus Torvalds if (status) 62021da177e4SLinus Torvalds goto out; 6203bf269551SChuck Lever status = decode_savefh(xdr); 620456ae19f3STrond Myklebust if (status) 620556ae19f3STrond Myklebust goto out; 6206bf269551SChuck Lever status = decode_open(xdr, res); 62071da177e4SLinus Torvalds if (status) 62081da177e4SLinus Torvalds goto out; 6209bf269551SChuck Lever if (decode_getfh(xdr, &res->fh) != 0) 62101da177e4SLinus Torvalds goto out; 62116926afd1STrond Myklebust if (decode_getfattr(xdr, res->f_attr, res->server) != 0) 621256ae19f3STrond Myklebust goto out; 6213bf269551SChuck Lever if (decode_restorefh(xdr) != 0) 621456ae19f3STrond Myklebust goto out; 62156926afd1STrond Myklebust decode_getfattr(xdr, res->dir_attr, res->server); 62161da177e4SLinus Torvalds out: 62171da177e4SLinus Torvalds return status; 62181da177e4SLinus Torvalds } 62191da177e4SLinus Torvalds 62201da177e4SLinus Torvalds /* 62211da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 62221da177e4SLinus Torvalds */ 6223bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6224bf269551SChuck Lever struct xdr_stream *xdr, 6225bf269551SChuck Lever struct nfs_open_confirmres *res) 62261da177e4SLinus Torvalds { 62271da177e4SLinus Torvalds struct compound_hdr hdr; 62281da177e4SLinus Torvalds int status; 62291da177e4SLinus Torvalds 6230bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62311da177e4SLinus Torvalds if (status) 62321da177e4SLinus Torvalds goto out; 6233bf269551SChuck Lever status = decode_putfh(xdr); 62341da177e4SLinus Torvalds if (status) 62351da177e4SLinus Torvalds goto out; 6236bf269551SChuck Lever status = decode_open_confirm(xdr, res); 62371da177e4SLinus Torvalds out: 62381da177e4SLinus Torvalds return status; 62391da177e4SLinus Torvalds } 62401da177e4SLinus Torvalds 62411da177e4SLinus Torvalds /* 62421da177e4SLinus Torvalds * Decode OPEN response 62431da177e4SLinus Torvalds */ 6244bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6245bf269551SChuck Lever struct xdr_stream *xdr, 6246bf269551SChuck Lever struct nfs_openres *res) 62471da177e4SLinus Torvalds { 62481da177e4SLinus Torvalds struct compound_hdr hdr; 62491da177e4SLinus Torvalds int status; 62501da177e4SLinus Torvalds 6251bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62521da177e4SLinus Torvalds if (status) 62531da177e4SLinus Torvalds goto out; 6254bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62559b7b9fccSAndy Adamson if (status) 62569b7b9fccSAndy Adamson goto out; 6257bf269551SChuck Lever status = decode_putfh(xdr); 62581da177e4SLinus Torvalds if (status) 62591da177e4SLinus Torvalds goto out; 6260bf269551SChuck Lever status = decode_open(xdr, res); 6261864472e9STrond Myklebust if (status) 6262864472e9STrond Myklebust goto out; 62636926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62641da177e4SLinus Torvalds out: 62651da177e4SLinus Torvalds return status; 62661da177e4SLinus Torvalds } 62671da177e4SLinus Torvalds 62681da177e4SLinus Torvalds /* 62691da177e4SLinus Torvalds * Decode SETATTR response 62701da177e4SLinus Torvalds */ 6271bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6272bf269551SChuck Lever struct xdr_stream *xdr, 6273bf269551SChuck Lever struct nfs_setattrres *res) 62741da177e4SLinus Torvalds { 62751da177e4SLinus Torvalds struct compound_hdr hdr; 62761da177e4SLinus Torvalds int status; 62771da177e4SLinus Torvalds 6278bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62791da177e4SLinus Torvalds if (status) 62801da177e4SLinus Torvalds goto out; 6281bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62829b7b9fccSAndy Adamson if (status) 62839b7b9fccSAndy Adamson goto out; 6284bf269551SChuck Lever status = decode_putfh(xdr); 62851da177e4SLinus Torvalds if (status) 62861da177e4SLinus Torvalds goto out; 6287bf269551SChuck Lever status = decode_setattr(xdr); 62881da177e4SLinus Torvalds if (status) 62891da177e4SLinus Torvalds goto out; 62906926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62911da177e4SLinus Torvalds out: 62921da177e4SLinus Torvalds return status; 62931da177e4SLinus Torvalds } 62941da177e4SLinus Torvalds 62951da177e4SLinus Torvalds /* 62961da177e4SLinus Torvalds * Decode LOCK response 62971da177e4SLinus Torvalds */ 6298bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6299bf269551SChuck Lever struct nfs_lock_res *res) 63001da177e4SLinus Torvalds { 63011da177e4SLinus Torvalds struct compound_hdr hdr; 63021da177e4SLinus Torvalds int status; 63031da177e4SLinus Torvalds 6304bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63051da177e4SLinus Torvalds if (status) 63061da177e4SLinus Torvalds goto out; 6307bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63089b7b9fccSAndy Adamson if (status) 63099b7b9fccSAndy Adamson goto out; 6310bf269551SChuck Lever status = decode_putfh(xdr); 63111da177e4SLinus Torvalds if (status) 63121da177e4SLinus Torvalds goto out; 6313bf269551SChuck Lever status = decode_lock(xdr, res); 63141da177e4SLinus Torvalds out: 63151da177e4SLinus Torvalds return status; 63161da177e4SLinus Torvalds } 63171da177e4SLinus Torvalds 63181da177e4SLinus Torvalds /* 63191da177e4SLinus Torvalds * Decode LOCKT response 63201da177e4SLinus Torvalds */ 6321bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6322bf269551SChuck Lever struct nfs_lockt_res *res) 63231da177e4SLinus Torvalds { 63241da177e4SLinus Torvalds struct compound_hdr hdr; 63251da177e4SLinus Torvalds int status; 63261da177e4SLinus Torvalds 6327bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63281da177e4SLinus Torvalds if (status) 63291da177e4SLinus Torvalds goto out; 6330bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63319b7b9fccSAndy Adamson if (status) 63329b7b9fccSAndy Adamson goto out; 6333bf269551SChuck Lever status = decode_putfh(xdr); 63341da177e4SLinus Torvalds if (status) 63351da177e4SLinus Torvalds goto out; 6336bf269551SChuck Lever status = decode_lockt(xdr, res); 63371da177e4SLinus Torvalds out: 63381da177e4SLinus Torvalds return status; 63391da177e4SLinus Torvalds } 63401da177e4SLinus Torvalds 63411da177e4SLinus Torvalds /* 63421da177e4SLinus Torvalds * Decode LOCKU response 63431da177e4SLinus Torvalds */ 6344bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6345bf269551SChuck Lever struct nfs_locku_res *res) 63461da177e4SLinus Torvalds { 63471da177e4SLinus Torvalds struct compound_hdr hdr; 63481da177e4SLinus Torvalds int status; 63491da177e4SLinus Torvalds 6350bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63511da177e4SLinus Torvalds if (status) 63521da177e4SLinus Torvalds goto out; 6353bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63549b7b9fccSAndy Adamson if (status) 63559b7b9fccSAndy Adamson goto out; 6356bf269551SChuck Lever status = decode_putfh(xdr); 63571da177e4SLinus Torvalds if (status) 63581da177e4SLinus Torvalds goto out; 6359bf269551SChuck Lever status = decode_locku(xdr, res); 63601da177e4SLinus Torvalds out: 63611da177e4SLinus Torvalds return status; 63621da177e4SLinus Torvalds } 63631da177e4SLinus Torvalds 6364bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6365bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6366d3c7b7ccSTrond Myklebust { 6367d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6368d3c7b7ccSTrond Myklebust int status; 6369d3c7b7ccSTrond Myklebust 6370bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6371d3c7b7ccSTrond Myklebust if (!status) 6372bf269551SChuck Lever status = decode_release_lockowner(xdr); 6373d3c7b7ccSTrond Myklebust return status; 6374d3c7b7ccSTrond Myklebust } 6375d3c7b7ccSTrond Myklebust 63761da177e4SLinus Torvalds /* 63771da177e4SLinus Torvalds * Decode READLINK response 63781da177e4SLinus Torvalds */ 6379bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6380bf269551SChuck Lever struct xdr_stream *xdr, 6381f50c7000SBenny Halevy struct nfs4_readlink_res *res) 63821da177e4SLinus Torvalds { 63831da177e4SLinus Torvalds struct compound_hdr hdr; 63841da177e4SLinus Torvalds int status; 63851da177e4SLinus Torvalds 6386bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63871da177e4SLinus Torvalds if (status) 63881da177e4SLinus Torvalds goto out; 6389bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63909b7b9fccSAndy Adamson if (status) 63919b7b9fccSAndy Adamson goto out; 6392bf269551SChuck Lever status = decode_putfh(xdr); 63931da177e4SLinus Torvalds if (status) 63941da177e4SLinus Torvalds goto out; 6395bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 63961da177e4SLinus Torvalds out: 63971da177e4SLinus Torvalds return status; 63981da177e4SLinus Torvalds } 63991da177e4SLinus Torvalds 64001da177e4SLinus Torvalds /* 64011da177e4SLinus Torvalds * Decode READDIR response 64021da177e4SLinus Torvalds */ 6403bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6404bf269551SChuck Lever struct nfs4_readdir_res *res) 64051da177e4SLinus Torvalds { 64061da177e4SLinus Torvalds struct compound_hdr hdr; 64071da177e4SLinus Torvalds int status; 64081da177e4SLinus Torvalds 6409bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64101da177e4SLinus Torvalds if (status) 64111da177e4SLinus Torvalds goto out; 6412bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64139b7b9fccSAndy Adamson if (status) 64149b7b9fccSAndy Adamson goto out; 6415bf269551SChuck Lever status = decode_putfh(xdr); 64161da177e4SLinus Torvalds if (status) 64171da177e4SLinus Torvalds goto out; 6418bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 64191da177e4SLinus Torvalds out: 64201da177e4SLinus Torvalds return status; 64211da177e4SLinus Torvalds } 64221da177e4SLinus Torvalds 64231da177e4SLinus Torvalds /* 64241da177e4SLinus Torvalds * Decode Read response 64251da177e4SLinus Torvalds */ 6426bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6427bf269551SChuck Lever struct nfs_readres *res) 64281da177e4SLinus Torvalds { 64291da177e4SLinus Torvalds struct compound_hdr hdr; 64301da177e4SLinus Torvalds int status; 64311da177e4SLinus Torvalds 6432bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64331da177e4SLinus Torvalds if (status) 64341da177e4SLinus Torvalds goto out; 6435bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64369b7b9fccSAndy Adamson if (status) 64379b7b9fccSAndy Adamson goto out; 6438bf269551SChuck Lever status = decode_putfh(xdr); 64391da177e4SLinus Torvalds if (status) 64401da177e4SLinus Torvalds goto out; 6441bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 64421da177e4SLinus Torvalds if (!status) 64431da177e4SLinus Torvalds status = res->count; 64441da177e4SLinus Torvalds out: 64451da177e4SLinus Torvalds return status; 64461da177e4SLinus Torvalds } 64471da177e4SLinus Torvalds 64481da177e4SLinus Torvalds /* 64491da177e4SLinus Torvalds * Decode WRITE response 64501da177e4SLinus Torvalds */ 6451bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6452bf269551SChuck Lever struct nfs_writeres *res) 64531da177e4SLinus Torvalds { 64541da177e4SLinus Torvalds struct compound_hdr hdr; 64551da177e4SLinus Torvalds int status; 64561da177e4SLinus Torvalds 6457bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64581da177e4SLinus Torvalds if (status) 64591da177e4SLinus Torvalds goto out; 6460bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64619b7b9fccSAndy Adamson if (status) 64629b7b9fccSAndy Adamson goto out; 6463bf269551SChuck Lever status = decode_putfh(xdr); 64641da177e4SLinus Torvalds if (status) 64651da177e4SLinus Torvalds goto out; 6466bf269551SChuck Lever status = decode_write(xdr, res); 64674f9838c7STrond Myklebust if (status) 64684f9838c7STrond Myklebust goto out; 64697ffd1064SFred Isaman if (res->fattr) 64706926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64711da177e4SLinus Torvalds if (!status) 64721da177e4SLinus Torvalds status = res->count; 64731da177e4SLinus Torvalds out: 64741da177e4SLinus Torvalds return status; 64751da177e4SLinus Torvalds } 64761da177e4SLinus Torvalds 64771da177e4SLinus Torvalds /* 64781da177e4SLinus Torvalds * Decode COMMIT response 64791da177e4SLinus Torvalds */ 6480bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6481bf269551SChuck Lever struct nfs_writeres *res) 64821da177e4SLinus Torvalds { 64831da177e4SLinus Torvalds struct compound_hdr hdr; 64841da177e4SLinus Torvalds int status; 64851da177e4SLinus Torvalds 6486bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64871da177e4SLinus Torvalds if (status) 64881da177e4SLinus Torvalds goto out; 6489bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64909b7b9fccSAndy Adamson if (status) 64919b7b9fccSAndy Adamson goto out; 6492bf269551SChuck Lever status = decode_putfh(xdr); 64931da177e4SLinus Torvalds if (status) 64941da177e4SLinus Torvalds goto out; 6495bf269551SChuck Lever status = decode_commit(xdr, res); 64964f9838c7STrond Myklebust if (status) 64974f9838c7STrond Myklebust goto out; 6498988b6dceSFred Isaman if (res->fattr) 64996926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 65001da177e4SLinus Torvalds out: 65011da177e4SLinus Torvalds return status; 65021da177e4SLinus Torvalds } 65031da177e4SLinus Torvalds 65041da177e4SLinus Torvalds /* 65058b173218SRicardo Labiaga * Decode FSINFO response 65061da177e4SLinus Torvalds */ 6507bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 65083dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 65091da177e4SLinus Torvalds { 65101da177e4SLinus Torvalds struct compound_hdr hdr; 65111da177e4SLinus Torvalds int status; 65121da177e4SLinus Torvalds 6513bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65141da177e4SLinus Torvalds if (!status) 6515bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65169b7b9fccSAndy Adamson if (!status) 6517bf269551SChuck Lever status = decode_putfh(xdr); 65181da177e4SLinus Torvalds if (!status) 6519bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 65201da177e4SLinus Torvalds return status; 65211da177e4SLinus Torvalds } 65221da177e4SLinus Torvalds 65231da177e4SLinus Torvalds /* 65248b173218SRicardo Labiaga * Decode PATHCONF response 65251da177e4SLinus Torvalds */ 6526bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6527d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 65281da177e4SLinus Torvalds { 65291da177e4SLinus Torvalds struct compound_hdr hdr; 65301da177e4SLinus Torvalds int status; 65311da177e4SLinus Torvalds 6532bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65331da177e4SLinus Torvalds if (!status) 6534bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65359b7b9fccSAndy Adamson if (!status) 6536bf269551SChuck Lever status = decode_putfh(xdr); 65371da177e4SLinus Torvalds if (!status) 6538bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 65391da177e4SLinus Torvalds return status; 65401da177e4SLinus Torvalds } 65411da177e4SLinus Torvalds 65421da177e4SLinus Torvalds /* 65438b173218SRicardo Labiaga * Decode STATFS response 65441da177e4SLinus Torvalds */ 6545bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 654624ad148aSBenny Halevy struct nfs4_statfs_res *res) 65471da177e4SLinus Torvalds { 65481da177e4SLinus Torvalds struct compound_hdr hdr; 65491da177e4SLinus Torvalds int status; 65501da177e4SLinus Torvalds 6551bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65521da177e4SLinus Torvalds if (!status) 6553bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65549b7b9fccSAndy Adamson if (!status) 6555bf269551SChuck Lever status = decode_putfh(xdr); 65561da177e4SLinus Torvalds if (!status) 6557bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 65581da177e4SLinus Torvalds return status; 65591da177e4SLinus Torvalds } 65601da177e4SLinus Torvalds 65611da177e4SLinus Torvalds /* 65628b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65631da177e4SLinus Torvalds */ 6564bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6565bf269551SChuck Lever struct xdr_stream *xdr, 6566bf269551SChuck Lever struct nfs4_server_caps_res *res) 65671da177e4SLinus Torvalds { 65681da177e4SLinus Torvalds struct compound_hdr hdr; 65691da177e4SLinus Torvalds int status; 65701da177e4SLinus Torvalds 6571bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65729b7b9fccSAndy Adamson if (status) 65739b7b9fccSAndy Adamson goto out; 6574bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65759b7b9fccSAndy Adamson if (status) 65761da177e4SLinus Torvalds goto out; 6577bf269551SChuck Lever status = decode_putfh(xdr); 6578bf269551SChuck Lever if (status) 65791da177e4SLinus Torvalds goto out; 6580bf269551SChuck Lever status = decode_server_caps(xdr, res); 65811da177e4SLinus Torvalds out: 65821da177e4SLinus Torvalds return status; 65831da177e4SLinus Torvalds } 65841da177e4SLinus Torvalds 65851da177e4SLinus Torvalds /* 65861da177e4SLinus Torvalds * Decode RENEW response 65871da177e4SLinus Torvalds */ 6588bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6589bf269551SChuck Lever void *__unused) 65901da177e4SLinus Torvalds { 65911da177e4SLinus Torvalds struct compound_hdr hdr; 65921da177e4SLinus Torvalds int status; 65931da177e4SLinus Torvalds 6594bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65951da177e4SLinus Torvalds if (!status) 6596bf269551SChuck Lever status = decode_renew(xdr); 65971da177e4SLinus Torvalds return status; 65981da177e4SLinus Torvalds } 65991da177e4SLinus Torvalds 66001da177e4SLinus Torvalds /* 66018b173218SRicardo Labiaga * Decode SETCLIENTID response 66021da177e4SLinus Torvalds */ 6603bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6604bf269551SChuck Lever struct xdr_stream *xdr, 6605bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 66061da177e4SLinus Torvalds { 66071da177e4SLinus Torvalds struct compound_hdr hdr; 66081da177e4SLinus Torvalds int status; 66091da177e4SLinus Torvalds 6610bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66111da177e4SLinus Torvalds if (!status) 6612bf269551SChuck Lever status = decode_setclientid(xdr, res); 66131da177e4SLinus Torvalds return status; 66141da177e4SLinus Torvalds } 66151da177e4SLinus Torvalds 66161da177e4SLinus Torvalds /* 66178b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 66181da177e4SLinus Torvalds */ 6619bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6620bf269551SChuck Lever struct xdr_stream *xdr, 6621bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 66221da177e4SLinus Torvalds { 66231da177e4SLinus Torvalds struct compound_hdr hdr; 66241da177e4SLinus Torvalds int status; 66251da177e4SLinus Torvalds 6626bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66271da177e4SLinus Torvalds if (!status) 6628bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 66291da177e4SLinus Torvalds if (!status) 6630bf269551SChuck Lever status = decode_putrootfh(xdr); 66311da177e4SLinus Torvalds if (!status) 6632bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 66331da177e4SLinus Torvalds return status; 66341da177e4SLinus Torvalds } 66351da177e4SLinus Torvalds 66361da177e4SLinus Torvalds /* 66378b173218SRicardo Labiaga * Decode DELEGRETURN response 66381da177e4SLinus Torvalds */ 6639bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6640bf269551SChuck Lever struct xdr_stream *xdr, 6641bf269551SChuck Lever struct nfs4_delegreturnres *res) 66421da177e4SLinus Torvalds { 66431da177e4SLinus Torvalds struct compound_hdr hdr; 66441da177e4SLinus Torvalds int status; 66451da177e4SLinus Torvalds 6646bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66479b7b9fccSAndy Adamson if (status) 66489b7b9fccSAndy Adamson goto out; 6649bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66509b7b9fccSAndy Adamson if (status) 6651fa178f29STrond Myklebust goto out; 6652bf269551SChuck Lever status = decode_putfh(xdr); 6653fa178f29STrond Myklebust if (status != 0) 6654fa178f29STrond Myklebust goto out; 6655bf269551SChuck Lever status = decode_delegreturn(xdr); 6656556ae3bbSJeff Layton if (status != 0) 6657556ae3bbSJeff Layton goto out; 66586926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6659fa178f29STrond Myklebust out: 66601da177e4SLinus Torvalds return status; 66611da177e4SLinus Torvalds } 66621da177e4SLinus Torvalds 6663683b57b4STrond Myklebust /* 66648b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6665683b57b4STrond Myklebust */ 6666bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6667bf269551SChuck Lever struct xdr_stream *xdr, 666822958463SBenny Halevy struct nfs4_fs_locations_res *res) 6669683b57b4STrond Myklebust { 6670683b57b4STrond Myklebust struct compound_hdr hdr; 6671683b57b4STrond Myklebust int status; 6672683b57b4STrond Myklebust 6673bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66749b7b9fccSAndy Adamson if (status) 66759b7b9fccSAndy Adamson goto out; 6676bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66779b7b9fccSAndy Adamson if (status) 6678683b57b4STrond Myklebust goto out; 6679bf269551SChuck Lever status = decode_putfh(xdr); 6680bf269551SChuck Lever if (status) 6681683b57b4STrond Myklebust goto out; 6682bf269551SChuck Lever status = decode_lookup(xdr); 6683bf269551SChuck Lever if (status) 6684683b57b4STrond Myklebust goto out; 6685bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 66868b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 66878b7e3f49STrond Myklebust NULL, res->fs_locations, 66886926afd1STrond Myklebust res->fs_locations->server); 6689683b57b4STrond Myklebust out: 6690683b57b4STrond Myklebust return status; 6691683b57b4STrond Myklebust } 6692683b57b4STrond Myklebust 66935a5ea0d4SBryan Schumaker /* 66945a5ea0d4SBryan Schumaker * Decode SECINFO response 66955a5ea0d4SBryan Schumaker */ 66965a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 66975a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 66985a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 66995a5ea0d4SBryan Schumaker { 67005a5ea0d4SBryan Schumaker struct compound_hdr hdr; 67015a5ea0d4SBryan Schumaker int status; 67025a5ea0d4SBryan Schumaker 67035a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 67045a5ea0d4SBryan Schumaker if (status) 67055a5ea0d4SBryan Schumaker goto out; 67065a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 67075a5ea0d4SBryan Schumaker if (status) 67085a5ea0d4SBryan Schumaker goto out; 67095a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 67105a5ea0d4SBryan Schumaker if (status) 67115a5ea0d4SBryan Schumaker goto out; 67125a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 67135a5ea0d4SBryan Schumaker out: 67145a5ea0d4SBryan Schumaker return status; 67155a5ea0d4SBryan Schumaker } 67165a5ea0d4SBryan Schumaker 671799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 671899fe60d0SBenny Halevy /* 67198b173218SRicardo Labiaga * Decode EXCHANGE_ID response 672099fe60d0SBenny Halevy */ 6721bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6722bf269551SChuck Lever struct xdr_stream *xdr, 672399fe60d0SBenny Halevy void *res) 672499fe60d0SBenny Halevy { 672599fe60d0SBenny Halevy struct compound_hdr hdr; 672699fe60d0SBenny Halevy int status; 672799fe60d0SBenny Halevy 6728bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 672999fe60d0SBenny Halevy if (!status) 6730bf269551SChuck Lever status = decode_exchange_id(xdr, res); 673199fe60d0SBenny Halevy return status; 673299fe60d0SBenny Halevy } 67332050f0ccSAndy Adamson 67342050f0ccSAndy Adamson /* 67358b173218SRicardo Labiaga * Decode CREATE_SESSION response 6736fc931582SAndy Adamson */ 6737bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6738bf269551SChuck Lever struct xdr_stream *xdr, 6739fc931582SAndy Adamson struct nfs41_create_session_res *res) 6740fc931582SAndy Adamson { 6741fc931582SAndy Adamson struct compound_hdr hdr; 6742fc931582SAndy Adamson int status; 6743fc931582SAndy Adamson 6744bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6745fc931582SAndy Adamson if (!status) 6746bf269551SChuck Lever status = decode_create_session(xdr, res); 6747fc931582SAndy Adamson return status; 6748fc931582SAndy Adamson } 6749fc931582SAndy Adamson 6750fc931582SAndy Adamson /* 67518b173218SRicardo Labiaga * Decode DESTROY_SESSION response 67520f3e66c6SAndy Adamson */ 6753bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6754bf269551SChuck Lever struct xdr_stream *xdr, 6755bf269551SChuck Lever void *res) 67560f3e66c6SAndy Adamson { 67570f3e66c6SAndy Adamson struct compound_hdr hdr; 67580f3e66c6SAndy Adamson int status; 67590f3e66c6SAndy Adamson 6760bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67610f3e66c6SAndy Adamson if (!status) 6762bf269551SChuck Lever status = decode_destroy_session(xdr, res); 67630f3e66c6SAndy Adamson return status; 67640f3e66c6SAndy Adamson } 67650f3e66c6SAndy Adamson 67660f3e66c6SAndy Adamson /* 67678b173218SRicardo Labiaga * Decode SEQUENCE response 6768fc01cea9SAndy Adamson */ 6769bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6770bf269551SChuck Lever struct xdr_stream *xdr, 6771fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6772fc01cea9SAndy Adamson { 6773fc01cea9SAndy Adamson struct compound_hdr hdr; 6774fc01cea9SAndy Adamson int status; 6775fc01cea9SAndy Adamson 6776bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6777fc01cea9SAndy Adamson if (!status) 6778bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6779fc01cea9SAndy Adamson return status; 6780fc01cea9SAndy Adamson } 6781fc01cea9SAndy Adamson 6782fc01cea9SAndy Adamson /* 67838b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 67842050f0ccSAndy Adamson */ 6785bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6786bf269551SChuck Lever struct xdr_stream *xdr, 67872050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 67882050f0ccSAndy Adamson { 67892050f0ccSAndy Adamson struct compound_hdr hdr; 67902050f0ccSAndy Adamson int status; 67912050f0ccSAndy Adamson 6792bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67932050f0ccSAndy Adamson if (!status) 6794bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 67952050f0ccSAndy Adamson if (!status) 6796bf269551SChuck Lever status = decode_putrootfh(xdr); 67972050f0ccSAndy Adamson if (!status) 6798bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 67992050f0ccSAndy Adamson return status; 68002050f0ccSAndy Adamson } 680118019753SRicardo Labiaga 680218019753SRicardo Labiaga /* 680318019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 680418019753SRicardo Labiaga */ 6805bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6806bf269551SChuck Lever struct xdr_stream *xdr, 680718019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 680818019753SRicardo Labiaga { 680918019753SRicardo Labiaga struct compound_hdr hdr; 681018019753SRicardo Labiaga int status; 681118019753SRicardo Labiaga 6812bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 681318019753SRicardo Labiaga if (!status) 6814bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 681518019753SRicardo Labiaga if (!status) 6816bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 681718019753SRicardo Labiaga return status; 681818019753SRicardo Labiaga } 6819b1f69b75SAndy Adamson 6820b1f69b75SAndy Adamson /* 68217f11d8d3SAndy Adamson * Decode GETDEVICELIST response 68227f11d8d3SAndy Adamson */ 68237f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 68247f11d8d3SAndy Adamson struct xdr_stream *xdr, 68257f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 68267f11d8d3SAndy Adamson { 68277f11d8d3SAndy Adamson struct compound_hdr hdr; 68287f11d8d3SAndy Adamson int status; 68297f11d8d3SAndy Adamson 68307f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 68317f11d8d3SAndy Adamson 68327f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 68337f11d8d3SAndy Adamson if (status != 0) 68347f11d8d3SAndy Adamson goto out; 68357f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 68367f11d8d3SAndy Adamson if (status != 0) 68377f11d8d3SAndy Adamson goto out; 68387f11d8d3SAndy Adamson status = decode_putfh(xdr); 68397f11d8d3SAndy Adamson if (status != 0) 68407f11d8d3SAndy Adamson goto out; 68417f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 68427f11d8d3SAndy Adamson out: 68437f11d8d3SAndy Adamson return status; 68447f11d8d3SAndy Adamson } 68457f11d8d3SAndy Adamson 68467f11d8d3SAndy Adamson /* 6847b1f69b75SAndy Adamson * Decode GETDEVINFO response 6848b1f69b75SAndy Adamson */ 6849bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6850bf269551SChuck Lever struct xdr_stream *xdr, 6851b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6852b1f69b75SAndy Adamson { 6853b1f69b75SAndy Adamson struct compound_hdr hdr; 6854b1f69b75SAndy Adamson int status; 6855b1f69b75SAndy Adamson 6856bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6857b1f69b75SAndy Adamson if (status != 0) 6858b1f69b75SAndy Adamson goto out; 6859bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6860b1f69b75SAndy Adamson if (status != 0) 6861b1f69b75SAndy Adamson goto out; 6862bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6863b1f69b75SAndy Adamson out: 6864b1f69b75SAndy Adamson return status; 6865b1f69b75SAndy Adamson } 6866b1f69b75SAndy Adamson 6867b1f69b75SAndy Adamson /* 6868b1f69b75SAndy Adamson * Decode LAYOUTGET response 6869b1f69b75SAndy Adamson */ 6870bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6871bf269551SChuck Lever struct xdr_stream *xdr, 6872b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6873b1f69b75SAndy Adamson { 6874b1f69b75SAndy Adamson struct compound_hdr hdr; 6875b1f69b75SAndy Adamson int status; 6876b1f69b75SAndy Adamson 6877bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6878b1f69b75SAndy Adamson if (status) 6879b1f69b75SAndy Adamson goto out; 6880bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6881b1f69b75SAndy Adamson if (status) 6882b1f69b75SAndy Adamson goto out; 6883bf269551SChuck Lever status = decode_putfh(xdr); 6884b1f69b75SAndy Adamson if (status) 6885b1f69b75SAndy Adamson goto out; 6886bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6887b1f69b75SAndy Adamson out: 6888b1f69b75SAndy Adamson return status; 6889b1f69b75SAndy Adamson } 6890863a3c6cSAndy Adamson 6891863a3c6cSAndy Adamson /* 6892cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6893cbe82603SBenny Halevy */ 6894cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6895cbe82603SBenny Halevy struct xdr_stream *xdr, 6896cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6897cbe82603SBenny Halevy { 6898cbe82603SBenny Halevy struct compound_hdr hdr; 6899cbe82603SBenny Halevy int status; 6900cbe82603SBenny Halevy 6901cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6902cbe82603SBenny Halevy if (status) 6903cbe82603SBenny Halevy goto out; 6904cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6905cbe82603SBenny Halevy if (status) 6906cbe82603SBenny Halevy goto out; 6907cbe82603SBenny Halevy status = decode_putfh(xdr); 6908cbe82603SBenny Halevy if (status) 6909cbe82603SBenny Halevy goto out; 6910cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6911cbe82603SBenny Halevy out: 6912cbe82603SBenny Halevy return status; 6913cbe82603SBenny Halevy } 6914cbe82603SBenny Halevy 6915cbe82603SBenny Halevy /* 6916863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6917863a3c6cSAndy Adamson */ 6918863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6919863a3c6cSAndy Adamson struct xdr_stream *xdr, 6920863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6921863a3c6cSAndy Adamson { 6922863a3c6cSAndy Adamson struct compound_hdr hdr; 6923863a3c6cSAndy Adamson int status; 6924863a3c6cSAndy Adamson 6925863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6926863a3c6cSAndy Adamson if (status) 6927863a3c6cSAndy Adamson goto out; 6928863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6929863a3c6cSAndy Adamson if (status) 6930863a3c6cSAndy Adamson goto out; 6931863a3c6cSAndy Adamson status = decode_putfh(xdr); 6932863a3c6cSAndy Adamson if (status) 6933863a3c6cSAndy Adamson goto out; 6934863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6935863a3c6cSAndy Adamson if (status) 6936863a3c6cSAndy Adamson goto out; 69376926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6938863a3c6cSAndy Adamson out: 6939863a3c6cSAndy Adamson return status; 6940863a3c6cSAndy Adamson } 6941fca78d6dSBryan Schumaker 6942fca78d6dSBryan Schumaker /* 6943fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 6944fca78d6dSBryan Schumaker */ 6945fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 6946fca78d6dSBryan Schumaker struct xdr_stream *xdr, 6947fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 6948fca78d6dSBryan Schumaker { 6949fca78d6dSBryan Schumaker struct compound_hdr hdr; 6950fca78d6dSBryan Schumaker int status; 6951fca78d6dSBryan Schumaker 6952fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 6953fca78d6dSBryan Schumaker if (status) 6954fca78d6dSBryan Schumaker goto out; 6955fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 6956fca78d6dSBryan Schumaker if (status) 6957fca78d6dSBryan Schumaker goto out; 6958fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 6959fca78d6dSBryan Schumaker if (status) 6960fca78d6dSBryan Schumaker goto out; 6961fca78d6dSBryan Schumaker status = decode_secinfo(xdr, res); 6962fca78d6dSBryan Schumaker out: 6963fca78d6dSBryan Schumaker return status; 6964fca78d6dSBryan Schumaker } 69657d974794SBryan Schumaker 69667d974794SBryan Schumaker /* 69677d974794SBryan Schumaker * Decode TEST_STATEID response 69687d974794SBryan Schumaker */ 69697d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 69707d974794SBryan Schumaker struct xdr_stream *xdr, 69717d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 69727d974794SBryan Schumaker { 69737d974794SBryan Schumaker struct compound_hdr hdr; 69747d974794SBryan Schumaker int status; 69757d974794SBryan Schumaker 69767d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69777d974794SBryan Schumaker if (status) 69787d974794SBryan Schumaker goto out; 69797d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69807d974794SBryan Schumaker if (status) 69817d974794SBryan Schumaker goto out; 69827d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 69837d974794SBryan Schumaker out: 69847d974794SBryan Schumaker return status; 69857d974794SBryan Schumaker } 69869aeda35fSBryan Schumaker 69879aeda35fSBryan Schumaker /* 69889aeda35fSBryan Schumaker * Decode FREE_STATEID response 69899aeda35fSBryan Schumaker */ 69909aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 69919aeda35fSBryan Schumaker struct xdr_stream *xdr, 69929aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 69939aeda35fSBryan Schumaker { 69949aeda35fSBryan Schumaker struct compound_hdr hdr; 69959aeda35fSBryan Schumaker int status; 69969aeda35fSBryan Schumaker 69979aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69989aeda35fSBryan Schumaker if (status) 69999aeda35fSBryan Schumaker goto out; 70009aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70019aeda35fSBryan Schumaker if (status) 70029aeda35fSBryan Schumaker goto out; 70039aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 70049aeda35fSBryan Schumaker out: 70059aeda35fSBryan Schumaker return status; 70069aeda35fSBryan Schumaker } 700799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 700899fe60d0SBenny Halevy 7009573c4e1eSChuck Lever /** 7010573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7011573c4e1eSChuck Lever * the local page cache. 7012573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7013573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7014573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7015573c4e1eSChuck Lever * 7016573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7017573c4e1eSChuck Lever * returned. 7018573c4e1eSChuck Lever * 7019573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7020573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7021573c4e1eSChuck Lever * on a directory already in our cache. 7022573c4e1eSChuck Lever */ 7023573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7024573c4e1eSChuck Lever int plus) 70251da177e4SLinus Torvalds { 7026dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 70271da177e4SLinus Torvalds uint32_t len; 7028babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7029babddc72SBryan Schumaker if (unlikely(!p)) 7030babddc72SBryan Schumaker goto out_overflow; 7031c08e76d0SChuck Lever if (*p == xdr_zero) { 7032babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7033babddc72SBryan Schumaker if (unlikely(!p)) 7034babddc72SBryan Schumaker goto out_overflow; 7035c08e76d0SChuck Lever if (*p == xdr_zero) 7036573c4e1eSChuck Lever return -EAGAIN; 70371da177e4SLinus Torvalds entry->eof = 1; 7038573c4e1eSChuck Lever return -EBADCOOKIE; 70391da177e4SLinus Torvalds } 70401da177e4SLinus Torvalds 7041babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7042babddc72SBryan Schumaker if (unlikely(!p)) 7043babddc72SBryan Schumaker goto out_overflow; 70441da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 70451da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7046c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7047babddc72SBryan Schumaker 70489af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7049babddc72SBryan Schumaker if (unlikely(!p)) 7050babddc72SBryan Schumaker goto out_overflow; 70511da177e4SLinus Torvalds entry->name = (const char *) p; 70521da177e4SLinus Torvalds 70531da177e4SLinus Torvalds /* 70541da177e4SLinus Torvalds * In case the server doesn't return an inode number, 70551da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 70561da177e4SLinus Torvalds * since glibc seems to choke on it...) 70571da177e4SLinus Torvalds */ 70581da177e4SLinus Torvalds entry->ino = 1; 70594f082222STrond Myklebust entry->fattr->valid = 0; 70601da177e4SLinus Torvalds 70619af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7062babddc72SBryan Schumaker goto out_overflow; 70639af8c222STrond Myklebust 70649af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 7065babddc72SBryan Schumaker goto out_overflow; 70669af8c222STrond Myklebust 7067573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 70688b7e3f49STrond Myklebust NULL, entry->server) < 0) 7069babddc72SBryan Schumaker goto out_overflow; 707028331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 707128331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 707228331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 707382f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 70749af8c222STrond Myklebust 70750b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 70760b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 70770b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 70780b26a0bfSTrond Myklebust 7079573c4e1eSChuck Lever return 0; 7080babddc72SBryan Schumaker 7081babddc72SBryan Schumaker out_overflow: 7082babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7083573c4e1eSChuck Lever return -EAGAIN; 70841da177e4SLinus Torvalds } 70851da177e4SLinus Torvalds 70861da177e4SLinus Torvalds /* 70871da177e4SLinus Torvalds * We need to translate between nfs status return values and 70881da177e4SLinus Torvalds * the local errno values which may not be the same. 70891da177e4SLinus Torvalds */ 70901da177e4SLinus Torvalds static struct { 70911da177e4SLinus Torvalds int stat; 70921da177e4SLinus Torvalds int errno; 70931da177e4SLinus Torvalds } nfs_errtbl[] = { 70941da177e4SLinus Torvalds { NFS4_OK, 0 }, 7095856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7096856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7097856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7098856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7099856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7100856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7101856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7102856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7103856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7104856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7105856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7106856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7107856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7108856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7109856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7110856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7111856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7112856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7113856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7114856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7115856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7116856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7117fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7118856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7119856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7120856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7121856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7122856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7123856dff3dSBenny Halevy { -1, -EIO } 71241da177e4SLinus Torvalds }; 71251da177e4SLinus Torvalds 71261da177e4SLinus Torvalds /* 71271da177e4SLinus Torvalds * Convert an NFS error code to a local one. 71281da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 71291da177e4SLinus Torvalds */ 71301da177e4SLinus Torvalds static int 71310a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 71321da177e4SLinus Torvalds { 71331da177e4SLinus Torvalds int i; 71341da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 71351da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 71361da177e4SLinus Torvalds return nfs_errtbl[i].errno; 71371da177e4SLinus Torvalds } 71381da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 71391da177e4SLinus Torvalds /* The server is looney tunes. */ 7140fdcb4577STrond Myklebust return -EREMOTEIO; 71411da177e4SLinus Torvalds } 71421da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 71431da177e4SLinus Torvalds * handle it. 71441da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 71451da177e4SLinus Torvalds * not conflict with native Linux error codes. 71461da177e4SLinus Torvalds */ 7147856dff3dSBenny Halevy return -stat; 71481da177e4SLinus Torvalds } 71491da177e4SLinus Torvalds 71501da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 71511da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 71521da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 71539f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7154bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 71552bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 71562bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7157cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7158cc0175c1SChuck Lever .p_name = #proc, \ 71591da177e4SLinus Torvalds } 71601da177e4SLinus Torvalds 71611da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 71621da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 71631da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 71641da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 71651da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 71661da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 71671da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 71681da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 71691da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 71701da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 71711da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 71721da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 71731da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 71741da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 71751da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 71761da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 71771da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 71781da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 71791da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 71801da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 71811da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 71821da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 71831da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 71841da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 71851da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 71861da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 71871da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 71881da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 71891da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 71901da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 71911da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 71921da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7193029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 719423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7195683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7196d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 71975a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 719899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 719999fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7200fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 72010f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7202fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 72032050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 720418019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7205b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7206b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7207863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7208cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7209fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 72107d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 72119aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 72127f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 721399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 72141da177e4SLinus Torvalds }; 72151da177e4SLinus Torvalds 7216a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 72171da177e4SLinus Torvalds .number = 4, 7218e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 72191da177e4SLinus Torvalds .procs = nfs4_procedures 72201da177e4SLinus Torvalds }; 72211da177e4SLinus Torvalds 72221da177e4SLinus Torvalds /* 72231da177e4SLinus Torvalds * Local variables: 72241da177e4SLinus Torvalds * c-basic-offset: 8 72251da177e4SLinus Torvalds * End: 72261da177e4SLinus Torvalds */ 7227