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 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 9101da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 911811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 912811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 913e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 914d017931cSAndy Adamson hdr->nops_p = p; 91534558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 916d017931cSAndy Adamson } 917d017931cSAndy Adamson 918d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 919d017931cSAndy Adamson { 920fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 921d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9221da177e4SLinus Torvalds } 9231da177e4SLinus Torvalds 9241da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9251da177e4SLinus Torvalds { 9268687b63aSAl Viro __be32 *p; 9271da177e4SLinus Torvalds 9281da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 9291da177e4SLinus Torvalds BUG_ON(p == NULL); 9301da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 9311da177e4SLinus Torvalds } 9321da177e4SLinus Torvalds 933cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9341da177e4SLinus Torvalds { 9351da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9361da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9371da177e4SLinus Torvalds int owner_namelen = 0; 9381da177e4SLinus Torvalds int owner_grouplen = 0; 9398687b63aSAl Viro __be32 *p; 9408687b63aSAl Viro __be32 *q; 9411da177e4SLinus Torvalds int len; 9421da177e4SLinus Torvalds uint32_t bmval0 = 0; 9431da177e4SLinus Torvalds uint32_t bmval1 = 0; 9441da177e4SLinus Torvalds 9451da177e4SLinus Torvalds /* 9461da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9471da177e4SLinus Torvalds * In the worst-case, this would be 9481da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9491da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 95023ec6965SJ. Bruce Fields * such as owner/group. 9511da177e4SLinus Torvalds */ 9521da177e4SLinus Torvalds len = 16; 9531da177e4SLinus Torvalds 9541da177e4SLinus Torvalds /* Sigh */ 9551da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9561da177e4SLinus Torvalds len += 8; 9571da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 9581da177e4SLinus Torvalds len += 4; 9591da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 960e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 9611da177e4SLinus Torvalds if (owner_namelen < 0) { 962fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 9631da177e4SLinus Torvalds iap->ia_uid); 9641da177e4SLinus Torvalds /* XXX */ 9651da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 9661da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 9671da177e4SLinus Torvalds /* goto out; */ 9681da177e4SLinus Torvalds } 9691da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 9701da177e4SLinus Torvalds } 9711da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 972e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 9731da177e4SLinus Torvalds if (owner_grouplen < 0) { 974fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 9751da177e4SLinus Torvalds iap->ia_gid); 9761da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 9771da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 9781da177e4SLinus Torvalds /* goto out; */ 9791da177e4SLinus Torvalds } 9801da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 9811da177e4SLinus Torvalds } 9821da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 9831da177e4SLinus Torvalds len += 16; 9841da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 9851da177e4SLinus Torvalds len += 4; 9861da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 9871da177e4SLinus Torvalds len += 16; 9881da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 9891da177e4SLinus Torvalds len += 4; 99013c65ce9SBenny Halevy p = reserve_space(xdr, len); 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds /* 9931da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 9941da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 9951da177e4SLinus Torvalds */ 996e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 9971da177e4SLinus Torvalds q = p; 9981da177e4SLinus Torvalds p += 3; 9991da177e4SLinus Torvalds 10001da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 10011da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 1002b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 10031da177e4SLinus Torvalds } 10041da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10051da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1006e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10071da177e4SLinus Torvalds } 10081da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10091da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1010811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10111da177e4SLinus Torvalds } 10121da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10131da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1014811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10151da177e4SLinus Torvalds } 10161da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10171da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1018e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1019e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1020d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1021d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10221da177e4SLinus Torvalds } 10231da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10241da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1025e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10261da177e4SLinus Torvalds } 10271da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10281da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1029e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1030e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1031e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1032e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10331da177e4SLinus Torvalds } 10341da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10351da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1036e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10371da177e4SLinus Torvalds } 10381da177e4SLinus Torvalds 10391da177e4SLinus Torvalds /* 10401da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10411da177e4SLinus Torvalds */ 10421da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1043f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10441da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10451da177e4SLinus Torvalds BUG(); 10461da177e4SLinus Torvalds } 10471da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10481da177e4SLinus Torvalds *q++ = htonl(bmval0); 10491da177e4SLinus Torvalds *q++ = htonl(bmval1); 105034558513SBenny Halevy *q = htonl(len); 10511da177e4SLinus Torvalds 10521da177e4SLinus Torvalds /* out: */ 10531da177e4SLinus Torvalds } 10541da177e4SLinus Torvalds 1055cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10561da177e4SLinus Torvalds { 10578687b63aSAl Viro __be32 *p; 10581da177e4SLinus Torvalds 105913c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1060e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 106134558513SBenny Halevy *p = cpu_to_be32(access); 1062d017931cSAndy Adamson hdr->nops++; 1063dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 10641da177e4SLinus Torvalds } 10651da177e4SLinus Torvalds 1066cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 10671da177e4SLinus Torvalds { 10688687b63aSAl Viro __be32 *p; 10691da177e4SLinus Torvalds 107013c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 1071e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 1072e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 107334558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 1074d017931cSAndy Adamson hdr->nops++; 1075dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 10761da177e4SLinus Torvalds } 10771da177e4SLinus Torvalds 1078cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 10791da177e4SLinus Torvalds { 10808687b63aSAl Viro __be32 *p; 10811da177e4SLinus Torvalds 108213c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1083e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 1084b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 108534558513SBenny Halevy *p = cpu_to_be32(args->count); 1086d017931cSAndy Adamson hdr->nops++; 1087dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds 1090cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 10911da177e4SLinus Torvalds { 10928687b63aSAl Viro __be32 *p; 10931da177e4SLinus Torvalds 109413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1095e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 109634558513SBenny Halevy *p = cpu_to_be32(create->ftype); 10971da177e4SLinus Torvalds 10981da177e4SLinus Torvalds switch (create->ftype) { 10991da177e4SLinus Torvalds case NF4LNK: 110013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 110134558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 110294a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11031da177e4SLinus Torvalds break; 11041da177e4SLinus Torvalds 11051da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 110613c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1107e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 110834558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11091da177e4SLinus Torvalds break; 11101da177e4SLinus Torvalds 11111da177e4SLinus Torvalds default: 11121da177e4SLinus Torvalds break; 11131da177e4SLinus Torvalds } 11141da177e4SLinus Torvalds 1115811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1116d017931cSAndy Adamson hdr->nops++; 1117dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 11181da177e4SLinus Torvalds 1119cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11201da177e4SLinus Torvalds } 11211da177e4SLinus Torvalds 1122cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11231da177e4SLinus Torvalds { 11248687b63aSAl Viro __be32 *p; 11251da177e4SLinus Torvalds 112613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1127e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1128e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 112934558513SBenny Halevy *p = cpu_to_be32(bitmap); 1130d017931cSAndy Adamson hdr->nops++; 1131dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 11321da177e4SLinus Torvalds } 11331da177e4SLinus Torvalds 1134cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11351da177e4SLinus Torvalds { 11368687b63aSAl Viro __be32 *p; 11371da177e4SLinus Torvalds 113813c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1139e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1140e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1141e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 114234558513SBenny Halevy *p = cpu_to_be32(bm1); 1143d017931cSAndy Adamson hdr->nops++; 1144dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 11451da177e4SLinus Torvalds } 11461da177e4SLinus Torvalds 1147dae100c2SFred Isaman static void 1148dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1149dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1150dae100c2SFred Isaman struct compound_hdr *hdr) 1151dae100c2SFred Isaman { 1152dae100c2SFred Isaman __be32 *p; 1153dae100c2SFred Isaman 1154dae100c2SFred Isaman p = reserve_space(xdr, 4); 1155dae100c2SFred Isaman *p = cpu_to_be32(OP_GETATTR); 1156dae100c2SFred Isaman if (bm2) { 1157dae100c2SFred Isaman p = reserve_space(xdr, 16); 1158dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1159dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1160dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1161dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1162dae100c2SFred Isaman } else if (bm1) { 1163dae100c2SFred Isaman p = reserve_space(xdr, 12); 1164dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1165dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1166dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1167dae100c2SFred Isaman } else { 1168dae100c2SFred Isaman p = reserve_space(xdr, 8); 1169dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1170dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1171dae100c2SFred Isaman } 1172dae100c2SFred Isaman hdr->nops++; 1173dae100c2SFred Isaman hdr->replen += decode_getattr_maxsz; 1174dae100c2SFred Isaman } 1175dae100c2SFred Isaman 1176cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11771da177e4SLinus Torvalds { 1178cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1179d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11801da177e4SLinus Torvalds } 11811da177e4SLinus Torvalds 1182cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11831da177e4SLinus Torvalds { 1184dae100c2SFred Isaman encode_getattr_three(xdr, 1185dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1186dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1187dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1188dae100c2SFred Isaman hdr); 11891da177e4SLinus Torvalds } 11901da177e4SLinus Torvalds 1191cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1192830b8e33SManoj Naik { 1193cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1194cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1195830b8e33SManoj Naik } 1196830b8e33SManoj Naik 1197cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 11981da177e4SLinus Torvalds { 11998687b63aSAl Viro __be32 *p; 12001da177e4SLinus Torvalds 120113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 120234558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1203d017931cSAndy Adamson hdr->nops++; 1204dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 12051da177e4SLinus Torvalds } 12061da177e4SLinus Torvalds 1207cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12081da177e4SLinus Torvalds { 12098687b63aSAl Viro __be32 *p; 12101da177e4SLinus Torvalds 121113c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1212e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1213811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1214d017931cSAndy Adamson hdr->nops++; 1215dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 12161da177e4SLinus Torvalds } 12171da177e4SLinus Torvalds 1218911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1219911d1aafSTrond Myklebust { 1220911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1221911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1222911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1223911d1aafSTrond Myklebust } 1224911d1aafSTrond Myklebust 1225911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1226911d1aafSTrond Myklebust { 1227911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1228911d1aafSTrond Myklebust return ~(uint64_t)0; 1229911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1230911d1aafSTrond Myklebust } 1231911d1aafSTrond Myklebust 1232daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1233daccbdedSTrond Myklebust { 1234daccbdedSTrond Myklebust __be32 *p; 1235daccbdedSTrond Myklebust 1236d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1237daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1238d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1239daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1240d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1241daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1242daccbdedSTrond Myklebust } 1243daccbdedSTrond Myklebust 12441da177e4SLinus Torvalds /* 12451da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12461da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12471da177e4SLinus Torvalds */ 1248cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12491da177e4SLinus Torvalds { 12508687b63aSAl Viro __be32 *p; 12511da177e4SLinus Torvalds 125213c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1253e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1254e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1255e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1256b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1257b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 125834558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1259911d1aafSTrond Myklebust if (args->new_lock_owner){ 1260daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1261e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 126293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1263e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1264daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12651da177e4SLinus Torvalds } 12661da177e4SLinus Torvalds else { 126713c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 126893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 126934558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 12701da177e4SLinus Torvalds } 1271d017931cSAndy Adamson hdr->nops++; 1272dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 12731da177e4SLinus Torvalds } 12741da177e4SLinus Torvalds 1275cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12761da177e4SLinus Torvalds { 12778687b63aSAl Viro __be32 *p; 12781da177e4SLinus Torvalds 1279daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1280e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1281e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1282b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1283b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1284daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1285d017931cSAndy Adamson hdr->nops++; 1286dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 12871da177e4SLinus Torvalds } 12881da177e4SLinus Torvalds 1289cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 12901da177e4SLinus Torvalds { 12918687b63aSAl Viro __be32 *p; 12921da177e4SLinus Torvalds 129313c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1294e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1295e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1296e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 129793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1298b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 129934558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1300d017931cSAndy Adamson hdr->nops++; 1301dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 13021da177e4SLinus Torvalds } 13031da177e4SLinus Torvalds 1304d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1305d3c7b7ccSTrond Myklebust { 1306d3c7b7ccSTrond Myklebust __be32 *p; 1307d3c7b7ccSTrond Myklebust 1308d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1309d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1310d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1311d3c7b7ccSTrond Myklebust hdr->nops++; 1312d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1313d3c7b7ccSTrond Myklebust } 1314d3c7b7ccSTrond Myklebust 1315cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13161da177e4SLinus Torvalds { 13171da177e4SLinus Torvalds int len = name->len; 13188687b63aSAl Viro __be32 *p; 13191da177e4SLinus Torvalds 132013c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1321e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1322811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1323d017931cSAndy Adamson hdr->nops++; 1324dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 13251da177e4SLinus Torvalds } 13261da177e4SLinus Torvalds 1327dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13281da177e4SLinus Torvalds { 13298687b63aSAl Viro __be32 *p; 13301da177e4SLinus Torvalds 133113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1332dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13331da177e4SLinus Torvalds case FMODE_READ: 1334e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13351da177e4SLinus Torvalds break; 13361da177e4SLinus Torvalds case FMODE_WRITE: 1337e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13381da177e4SLinus Torvalds break; 13391da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1340e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13411da177e4SLinus Torvalds break; 13421da177e4SLinus Torvalds default: 1343e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13441da177e4SLinus Torvalds } 134534558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13461da177e4SLinus Torvalds } 13471da177e4SLinus Torvalds 13481da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13491da177e4SLinus Torvalds { 13508687b63aSAl Viro __be32 *p; 13511da177e4SLinus Torvalds /* 13521da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13531da177e4SLinus Torvalds * owner 4 = 32 13541da177e4SLinus Torvalds */ 135513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1356e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 135734558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1358dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1359d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1360b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1361d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 136293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1363d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 136434558513SBenny Halevy xdr_encode_hyper(p, arg->id); 13651da177e4SLinus Torvalds } 13661da177e4SLinus Torvalds 13671da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13681da177e4SLinus Torvalds { 13698687b63aSAl Viro __be32 *p; 13704882ef72SAlexandros Batsakis struct nfs_client *clp; 13711da177e4SLinus Torvalds 137213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13731da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13741da177e4SLinus Torvalds case 0: 137534558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13761da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13771da177e4SLinus Torvalds break; 13781da177e4SLinus Torvalds default: 13794882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1380a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13814882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13824882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13834882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13844882ef72SAlexandros Batsakis } else { 13854882ef72SAlexandros Batsakis struct iattr dummy; 13864882ef72SAlexandros Batsakis 13874882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13884882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13894882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13904882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13914882ef72SAlexandros Batsakis } 13924882ef72SAlexandros Batsakis } else { 139334558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13941da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13951da177e4SLinus Torvalds } 13961da177e4SLinus Torvalds } 13974882ef72SAlexandros Batsakis } 13981da177e4SLinus Torvalds 13991da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14001da177e4SLinus Torvalds { 14018687b63aSAl Viro __be32 *p; 14021da177e4SLinus Torvalds 140313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14041da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14051da177e4SLinus Torvalds case 0: 140634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14071da177e4SLinus Torvalds break; 14081da177e4SLinus Torvalds default: 14091da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 141034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14111da177e4SLinus Torvalds encode_createmode(xdr, arg); 14121da177e4SLinus Torvalds } 14131da177e4SLinus Torvalds } 14141da177e4SLinus Torvalds 1415bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14161da177e4SLinus Torvalds { 14178687b63aSAl Viro __be32 *p; 14181da177e4SLinus Torvalds 141913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14201da177e4SLinus Torvalds switch (delegation_type) { 14211da177e4SLinus Torvalds case 0: 142234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14231da177e4SLinus Torvalds break; 14241da177e4SLinus Torvalds case FMODE_READ: 142534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14261da177e4SLinus Torvalds break; 14271da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 142834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14291da177e4SLinus Torvalds break; 14301da177e4SLinus Torvalds default: 14311da177e4SLinus Torvalds BUG(); 14321da177e4SLinus Torvalds } 14331da177e4SLinus Torvalds } 14341da177e4SLinus Torvalds 14351da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14361da177e4SLinus Torvalds { 14378687b63aSAl Viro __be32 *p; 14381da177e4SLinus Torvalds 143913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14411da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14421da177e4SLinus Torvalds } 14431da177e4SLinus Torvalds 1444bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14451da177e4SLinus Torvalds { 14468687b63aSAl Viro __be32 *p; 14471da177e4SLinus Torvalds 144813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14501da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14511da177e4SLinus Torvalds } 14521da177e4SLinus Torvalds 14531da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14541da177e4SLinus Torvalds { 14558687b63aSAl Viro __be32 *p; 14561da177e4SLinus Torvalds 145713c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1458e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 145934558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 14601da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14611da177e4SLinus Torvalds } 14621da177e4SLinus Torvalds 1463cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14641da177e4SLinus Torvalds { 14651da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14661da177e4SLinus Torvalds encode_opentype(xdr, arg); 14671da177e4SLinus Torvalds switch (arg->claim) { 14681da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14691da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14701da177e4SLinus Torvalds break; 14711da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14721da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14731da177e4SLinus Torvalds break; 14741da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14751da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14761da177e4SLinus Torvalds break; 14771da177e4SLinus Torvalds default: 14781da177e4SLinus Torvalds BUG(); 14791da177e4SLinus Torvalds } 1480d017931cSAndy Adamson hdr->nops++; 1481dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 14821da177e4SLinus Torvalds } 14831da177e4SLinus Torvalds 1484cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 14851da177e4SLinus Torvalds { 14868687b63aSAl Viro __be32 *p; 14871da177e4SLinus Torvalds 148813c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1489e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 149093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 149134558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1492d017931cSAndy Adamson hdr->nops++; 1493dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 14941da177e4SLinus Torvalds } 14951da177e4SLinus Torvalds 1496cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 14971da177e4SLinus Torvalds { 14988687b63aSAl Viro __be32 *p; 14991da177e4SLinus Torvalds 150013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1501e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 150293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 150334558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1504dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1505d017931cSAndy Adamson hdr->nops++; 1506dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 15071da177e4SLinus Torvalds } 15081da177e4SLinus Torvalds 1509cf8cdbe5SAndy Adamson static void 1510d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15111da177e4SLinus Torvalds { 15121da177e4SLinus Torvalds int len = fh->size; 15138687b63aSAl Viro __be32 *p; 15141da177e4SLinus Torvalds 151513c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1516e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1517811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1518d017931cSAndy Adamson hdr->nops++; 1519dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 15201da177e4SLinus Torvalds } 15211da177e4SLinus Torvalds 1522cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15231da177e4SLinus Torvalds { 15248687b63aSAl Viro __be32 *p; 15251da177e4SLinus Torvalds 152613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 152734558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1528d017931cSAndy Adamson hdr->nops++; 1529dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 15301da177e4SLinus Torvalds } 15311da177e4SLinus Torvalds 153289d1ea65SAndy Adamson static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid) 15331da177e4SLinus Torvalds { 15341da177e4SLinus Torvalds nfs4_stateid stateid; 15358687b63aSAl Viro __be32 *p; 15361da177e4SLinus Torvalds 153713c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 15381da177e4SLinus Torvalds if (ctx->state != NULL) { 153977041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 154089d1ea65SAndy Adamson if (zero_seqid) 154189d1ea65SAndy Adamson stateid.stateid.seqid = 0; 154234558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 15431da177e4SLinus Torvalds } else 154434558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 15451da177e4SLinus Torvalds } 15461da177e4SLinus Torvalds 1547cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15481da177e4SLinus Torvalds { 15498687b63aSAl Viro __be32 *p; 15501da177e4SLinus Torvalds 155113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 155234558513SBenny Halevy *p = cpu_to_be32(OP_READ); 15531da177e4SLinus Torvalds 155489d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 155589d1ea65SAndy Adamson hdr->minorversion); 15561da177e4SLinus Torvalds 155713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1558b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 155934558513SBenny Halevy *p = cpu_to_be32(args->count); 1560d017931cSAndy Adamson hdr->nops++; 1561dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 15621da177e4SLinus Torvalds } 15631da177e4SLinus Torvalds 1564cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15651da177e4SLinus Torvalds { 156628331a46STrond Myklebust uint32_t attrs[2] = { 156728331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 156828331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 156928331a46STrond Myklebust }; 15706f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 15718687b63aSAl Viro __be32 *p; 15721da177e4SLinus Torvalds 157382f2e547SBryan Schumaker if (readdir->plus) { 157482f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 157528331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 157682f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 157782f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 157882f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 157982f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15806f7a35bdSTrond Myklebust dircount >>= 1; 158182f2e547SBryan Schumaker } 158228331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 158328331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 158428331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15856f7a35bdSTrond Myklebust 15866f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 15876f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 15886f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 15896f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 15906f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15916f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15926f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 159382f2e547SBryan Schumaker 1594e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 159534558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1596d017931cSAndy Adamson hdr->nops++; 1597dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 159844109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 159944109241SFred Isaman __func__, 1600eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1601eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1602eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1603eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1604eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 16051da177e4SLinus Torvalds } 16061da177e4SLinus Torvalds 1607cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16081da177e4SLinus Torvalds { 16098687b63aSAl Viro __be32 *p; 16101da177e4SLinus Torvalds 161113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 161234558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1613d017931cSAndy Adamson hdr->nops++; 1614dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 16151da177e4SLinus Torvalds } 16161da177e4SLinus Torvalds 1617cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16181da177e4SLinus Torvalds { 16198687b63aSAl Viro __be32 *p; 16201da177e4SLinus Torvalds 162113c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1622e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1623811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1624d017931cSAndy Adamson hdr->nops++; 1625dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 16261da177e4SLinus Torvalds } 16271da177e4SLinus Torvalds 1628cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16291da177e4SLinus Torvalds { 16308687b63aSAl Viro __be32 *p; 16311da177e4SLinus Torvalds 1632811652bdSBenny Halevy p = reserve_space(xdr, 4); 1633811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1634811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1635811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1636d017931cSAndy Adamson hdr->nops++; 1637dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 16381da177e4SLinus Torvalds } 16391da177e4SLinus Torvalds 1640bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1641bb4dae5eSChuck Lever struct compound_hdr *hdr) 16421da177e4SLinus Torvalds { 16438687b63aSAl Viro __be32 *p; 16441da177e4SLinus Torvalds 164513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1646e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 1647bb4dae5eSChuck Lever xdr_encode_hyper(p, clid); 1648d017931cSAndy Adamson hdr->nops++; 1649dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 16501da177e4SLinus Torvalds } 16511da177e4SLinus Torvalds 1652cf8cdbe5SAndy Adamson static void 1653d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 165456ae19f3STrond Myklebust { 16558687b63aSAl Viro __be32 *p; 165656ae19f3STrond Myklebust 165713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165834558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1659d017931cSAndy Adamson hdr->nops++; 1660dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 166156ae19f3STrond Myklebust } 166256ae19f3STrond Myklebust 16639f06c719SChuck Lever static void 1664d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 166523ec6965SJ. Bruce Fields { 16668687b63aSAl Viro __be32 *p; 166723ec6965SJ. Bruce Fields 166813c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1669e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 167034558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 167113c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1672e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 167334558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 16749f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 167513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 167634558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 167723ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1678d017931cSAndy Adamson hdr->nops++; 1679dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 168023ec6965SJ. Bruce Fields } 168123ec6965SJ. Bruce Fields 1682cf8cdbe5SAndy Adamson static void 1683d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16841da177e4SLinus Torvalds { 16858687b63aSAl Viro __be32 *p; 16861da177e4SLinus Torvalds 168713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 168834558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1689d017931cSAndy Adamson hdr->nops++; 1690dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 16911da177e4SLinus Torvalds } 16921da177e4SLinus Torvalds 1693cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16941da177e4SLinus Torvalds { 16958687b63aSAl Viro __be32 *p; 16961da177e4SLinus Torvalds 169713c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1698e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 169934558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1700d017931cSAndy Adamson hdr->nops++; 1701dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1702cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 17031da177e4SLinus Torvalds } 17041da177e4SLinus Torvalds 1705cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 17061da177e4SLinus Torvalds { 17078687b63aSAl Viro __be32 *p; 17081da177e4SLinus Torvalds 170913c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1710e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 171134558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 17121da177e4SLinus Torvalds 17131da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 171413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 171534558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 17161da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 17171da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 171813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 171934558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1720d017931cSAndy Adamson hdr->nops++; 1721dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 17221da177e4SLinus Torvalds } 17231da177e4SLinus Torvalds 1724bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 17251da177e4SLinus Torvalds { 17268687b63aSAl Viro __be32 *p; 17271da177e4SLinus Torvalds 172813c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1729e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1730bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1731bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1732d017931cSAndy Adamson hdr->nops++; 1733dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 17341da177e4SLinus Torvalds } 17351da177e4SLinus Torvalds 1736cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 17371da177e4SLinus Torvalds { 17388687b63aSAl Viro __be32 *p; 17391da177e4SLinus Torvalds 174013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 174134558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 17421da177e4SLinus Torvalds 174389d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 174489d1ea65SAndy Adamson hdr->minorversion); 17451da177e4SLinus Torvalds 174613c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1747b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1748e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 174934558513SBenny Halevy *p = cpu_to_be32(args->count); 17501da177e4SLinus Torvalds 17511da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1752d017931cSAndy Adamson hdr->nops++; 1753dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 17541da177e4SLinus Torvalds } 17551da177e4SLinus Torvalds 1756cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17571da177e4SLinus Torvalds { 17588687b63aSAl Viro __be32 *p; 17591da177e4SLinus Torvalds 176013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 17611da177e4SLinus Torvalds 1762e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 176334558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1764d017931cSAndy Adamson hdr->nops++; 1765dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 17661da177e4SLinus Torvalds } 17679b7b9fccSAndy Adamson 17685a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17695a5ea0d4SBryan Schumaker { 17705a5ea0d4SBryan Schumaker int len = name->len; 17715a5ea0d4SBryan Schumaker __be32 *p; 17725a5ea0d4SBryan Schumaker 17735a5ea0d4SBryan Schumaker p = reserve_space(xdr, 8 + len); 17745a5ea0d4SBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO); 17755a5ea0d4SBryan Schumaker xdr_encode_opaque(p, name->name, len); 17765a5ea0d4SBryan Schumaker hdr->nops++; 17775a5ea0d4SBryan Schumaker hdr->replen += decode_secinfo_maxsz; 17785a5ea0d4SBryan Schumaker } 17795a5ea0d4SBryan Schumaker 178099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17819b7b9fccSAndy Adamson /* NFSv4.1 operations */ 178299fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 178399fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 178499fe60d0SBenny Halevy struct compound_hdr *hdr) 178599fe60d0SBenny Halevy { 178699fe60d0SBenny Halevy __be32 *p; 1787db8ac8baSWeston Andros Adamson char impl_name[NFS4_OPAQUE_LIMIT]; 1788db8ac8baSWeston Andros Adamson int len = 0; 178999fe60d0SBenny Halevy 179013c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1791e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 179234558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 179399fe60d0SBenny Halevy 179499fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 179599fe60d0SBenny Halevy 179613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1797e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1798e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1799db8ac8baSWeston Andros Adamson 1800db8ac8baSWeston Andros Adamson if (send_implementation_id && 1801db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1802db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1803db8ac8baSWeston Andros Adamson <= NFS4_OPAQUE_LIMIT + 1) 1804db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1805db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1806db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1807db8ac8baSWeston Andros Adamson 1808db8ac8baSWeston Andros Adamson if (len > 0) { 1809db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1810db8ac8baSWeston Andros Adamson 1811db8ac8baSWeston Andros Adamson encode_string(xdr, 1812db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1813db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1814db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1815db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1816db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1817db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1818db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1819db8ac8baSWeston Andros Adamson } else 1820db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 1821db8ac8baSWeston Andros Adamson 182299fe60d0SBenny Halevy hdr->nops++; 182399fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 182499fe60d0SBenny Halevy } 1825fc931582SAndy Adamson 1826fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1827fc931582SAndy Adamson struct nfs41_create_session_args *args, 1828fc931582SAndy Adamson struct compound_hdr *hdr) 1829fc931582SAndy Adamson { 1830fc931582SAndy Adamson __be32 *p; 1831fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1832fc931582SAndy Adamson uint32_t len; 1833fc931582SAndy Adamson struct nfs_client *clp = args->client; 18348e0d46e1SMike Sager u32 max_resp_sz_cached; 18358e0d46e1SMike Sager 18368e0d46e1SMike Sager /* 18378e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 18388e0d46e1SMike Sager * 2 is the verifier. 18398e0d46e1SMike Sager */ 18408e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 18418e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1842fc931582SAndy Adamson 1843fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1844fc931582SAndy Adamson clp->cl_ipaddr); 184542edd698SBenny Halevy 184613c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1847e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1848114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1849e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1850e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1851fc931582SAndy Adamson 1852fc931582SAndy Adamson /* Fore Channel */ 1853c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1855e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18568e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1857e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1858e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1859e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1860fc931582SAndy Adamson 1861fc931582SAndy Adamson /* Back Channel */ 1862c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1863e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1864e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1866e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1868e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1869fc931582SAndy Adamson 1870e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1871e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1872e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1873fc931582SAndy Adamson 1874fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1875e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1876811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1877e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1878e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 187934558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1880fc931582SAndy Adamson hdr->nops++; 1881fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1882fc931582SAndy Adamson } 18830f3e66c6SAndy Adamson 18840f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18850f3e66c6SAndy Adamson struct nfs4_session *session, 18860f3e66c6SAndy Adamson struct compound_hdr *hdr) 18870f3e66c6SAndy Adamson { 18880f3e66c6SAndy Adamson __be32 *p; 188913c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1890e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 189134558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18920f3e66c6SAndy Adamson hdr->nops++; 18930f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 18940f3e66c6SAndy Adamson } 189518019753SRicardo Labiaga 189618019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 189718019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 189818019753SRicardo Labiaga struct compound_hdr *hdr) 189918019753SRicardo Labiaga { 190018019753SRicardo Labiaga __be32 *p; 190118019753SRicardo Labiaga 190218019753SRicardo Labiaga p = reserve_space(xdr, 8); 190318019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 190418019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 190518019753SRicardo Labiaga hdr->nops++; 190618019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 190718019753SRicardo Labiaga } 190899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 190999fe60d0SBenny Halevy 19109b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 19119b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 19129b7b9fccSAndy Adamson struct compound_hdr *hdr) 19139b7b9fccSAndy Adamson { 19149b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 19159b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1916fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1917fc01cea9SAndy Adamson struct nfs4_slot *slot; 1918fc01cea9SAndy Adamson __be32 *p; 19199b7b9fccSAndy Adamson 19209b7b9fccSAndy Adamson if (!session) 19219b7b9fccSAndy Adamson return; 19229b7b9fccSAndy Adamson 1923fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1924fc01cea9SAndy Adamson 1925fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1926fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1927fc01cea9SAndy Adamson 192813c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1929e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1930fc01cea9SAndy Adamson 1931fc01cea9SAndy Adamson /* 1932fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1933fc01cea9SAndy Adamson */ 1934fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1935fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1936fc01cea9SAndy Adamson __func__, 1937fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1938fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1939fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1940fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1941fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1942fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 194393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1944e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1945e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1946e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 194734558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19489b7b9fccSAndy Adamson hdr->nops++; 19499b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 19509b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19519b7b9fccSAndy Adamson } 19529b7b9fccSAndy Adamson 1953b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1954b1f69b75SAndy Adamson static void 19557f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 19567f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 19577f11d8d3SAndy Adamson struct compound_hdr *hdr) 19587f11d8d3SAndy Adamson { 19597f11d8d3SAndy Adamson __be32 *p; 19607f11d8d3SAndy Adamson nfs4_verifier dummy = { 19617f11d8d3SAndy Adamson .data = "dummmmmy", 19627f11d8d3SAndy Adamson }; 19637f11d8d3SAndy Adamson 19647f11d8d3SAndy Adamson p = reserve_space(xdr, 20); 19657f11d8d3SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICELIST); 19667f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 19677f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 19687f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 19697f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 19707f11d8d3SAndy Adamson hdr->nops++; 19717f11d8d3SAndy Adamson hdr->replen += decode_getdevicelist_maxsz; 19727f11d8d3SAndy Adamson } 19737f11d8d3SAndy Adamson 19747f11d8d3SAndy Adamson static void 1975b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1976b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1977b1f69b75SAndy Adamson struct compound_hdr *hdr) 1978b1f69b75SAndy Adamson { 1979b1f69b75SAndy Adamson __be32 *p; 1980b1f69b75SAndy Adamson 1981b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1982b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1983b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1984b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1985b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1986b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1987b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1988b1f69b75SAndy Adamson hdr->nops++; 1989b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1990b1f69b75SAndy Adamson } 1991b1f69b75SAndy Adamson 1992b1f69b75SAndy Adamson static void 1993b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1994b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1995b1f69b75SAndy Adamson struct compound_hdr *hdr) 1996b1f69b75SAndy Adamson { 1997b1f69b75SAndy Adamson __be32 *p; 1998b1f69b75SAndy Adamson 1999b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 2000b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 2001b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 2002b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 2003b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 2004b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 2005b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 2006b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 2007cf7d63f1SFred Isaman p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 2008b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 2009b1f69b75SAndy Adamson 2010b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 2011b1f69b75SAndy Adamson __func__, 2012b1f69b75SAndy Adamson args->type, 2013b1f69b75SAndy Adamson args->range.iomode, 2014b1f69b75SAndy Adamson (unsigned long)args->range.offset, 2015b1f69b75SAndy Adamson (unsigned long)args->range.length, 2016b1f69b75SAndy Adamson args->maxcount); 2017b1f69b75SAndy Adamson hdr->nops++; 2018b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 2019b1f69b75SAndy Adamson } 2020863a3c6cSAndy Adamson 2021863a3c6cSAndy Adamson static int 2022863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 2023ac7db726SBenny Halevy struct inode *inode, 2024863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 2025863a3c6cSAndy Adamson struct compound_hdr *hdr) 2026863a3c6cSAndy Adamson { 2027863a3c6cSAndy Adamson __be32 *p; 2028863a3c6cSAndy Adamson 2029863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 2030863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 2031863a3c6cSAndy Adamson 2032ac7db726SBenny Halevy p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 2033863a3c6cSAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); 2034863a3c6cSAndy Adamson /* Only whole file layouts */ 2035863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 20363557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 2037863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* reclaim */ 2038863a3c6cSAndy Adamson p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE); 2039863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 2040863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 2041863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 2042863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 2043ac7db726SBenny Halevy 2044ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 2045ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 2046ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 2047ac7db726SBenny Halevy else { 2048ac7db726SBenny Halevy p = reserve_space(xdr, 4); 2049ac7db726SBenny Halevy *p = cpu_to_be32(0); /* no layout-type payload */ 2050ac7db726SBenny Halevy } 2051863a3c6cSAndy Adamson 2052863a3c6cSAndy Adamson hdr->nops++; 2053863a3c6cSAndy Adamson hdr->replen += decode_layoutcommit_maxsz; 2054863a3c6cSAndy Adamson return 0; 2055863a3c6cSAndy Adamson } 2056cbe82603SBenny Halevy 2057cbe82603SBenny Halevy static void 2058cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2059cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2060cbe82603SBenny Halevy struct compound_hdr *hdr) 2061cbe82603SBenny Halevy { 2062cbe82603SBenny Halevy __be32 *p; 2063cbe82603SBenny Halevy 2064cbe82603SBenny Halevy p = reserve_space(xdr, 20); 2065cbe82603SBenny Halevy *p++ = cpu_to_be32(OP_LAYOUTRETURN); 2066cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2067cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 2068cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 2069cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2070cbe82603SBenny Halevy p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE); 2071cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 2072cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 2073cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2074cbe82603SBenny Halevy xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 2075cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 207604a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 207704a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 207804a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 207904a55549SAndy Adamson } else { 2080cbe82603SBenny Halevy p = reserve_space(xdr, 4); 2081cbe82603SBenny Halevy *p = cpu_to_be32(0); 208204a55549SAndy Adamson } 2083cbe82603SBenny Halevy hdr->nops++; 2084cbe82603SBenny Halevy hdr->replen += decode_layoutreturn_maxsz; 2085cbe82603SBenny Halevy } 2086fca78d6dSBryan Schumaker 2087fca78d6dSBryan Schumaker static int 2088fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2089fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2090fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2091fca78d6dSBryan Schumaker { 2092fca78d6dSBryan Schumaker __be32 *p; 2093fca78d6dSBryan Schumaker p = reserve_space(xdr, 8); 2094fca78d6dSBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO_NO_NAME); 2095fca78d6dSBryan Schumaker *p++ = cpu_to_be32(args->style); 2096fca78d6dSBryan Schumaker hdr->nops++; 2097fca78d6dSBryan Schumaker hdr->replen += decode_secinfo_no_name_maxsz; 2098fca78d6dSBryan Schumaker return 0; 2099fca78d6dSBryan Schumaker } 21007d974794SBryan Schumaker 21017d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 21027d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 21037d974794SBryan Schumaker struct compound_hdr *hdr) 21047d974794SBryan Schumaker { 21057d974794SBryan Schumaker __be32 *p; 21067d974794SBryan Schumaker 21077d974794SBryan Schumaker p = reserve_space(xdr, 8 + NFS4_STATEID_SIZE); 21087d974794SBryan Schumaker *p++ = cpu_to_be32(OP_TEST_STATEID); 21097d974794SBryan Schumaker *p++ = cpu_to_be32(1); 21107d974794SBryan Schumaker xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 21117d974794SBryan Schumaker hdr->nops++; 21127d974794SBryan Schumaker hdr->replen += decode_test_stateid_maxsz; 21137d974794SBryan Schumaker } 21149aeda35fSBryan Schumaker 21159aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 21169aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 21179aeda35fSBryan Schumaker struct compound_hdr *hdr) 21189aeda35fSBryan Schumaker { 21199aeda35fSBryan Schumaker __be32 *p; 21209aeda35fSBryan Schumaker p = reserve_space(xdr, 4 + NFS4_STATEID_SIZE); 21219aeda35fSBryan Schumaker *p++ = cpu_to_be32(OP_FREE_STATEID); 21229aeda35fSBryan Schumaker xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 21239aeda35fSBryan Schumaker hdr->nops++; 21249aeda35fSBryan Schumaker hdr->replen += decode_free_stateid_maxsz; 21259aeda35fSBryan Schumaker } 2126b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2127b1f69b75SAndy Adamson 21281da177e4SLinus Torvalds /* 21291da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 21301da177e4SLinus Torvalds */ 21311da177e4SLinus Torvalds 213266cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 213366cc0429SBenny Halevy { 213466cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 213566cc0429SBenny Halevy if (args->sa_session) 2136a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 213766cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 213866cc0429SBenny Halevy return 0; 213966cc0429SBenny Halevy } 214066cc0429SBenny Halevy 21411da177e4SLinus Torvalds /* 21421da177e4SLinus Torvalds * Encode an ACCESS request 21431da177e4SLinus Torvalds */ 21449f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 21459f06c719SChuck Lever const struct nfs4_accessargs *args) 21461da177e4SLinus Torvalds { 21471da177e4SLinus Torvalds struct compound_hdr hdr = { 214866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21491da177e4SLinus Torvalds }; 21501da177e4SLinus Torvalds 21519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21529f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21539f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21549f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21559f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2156d017931cSAndy Adamson encode_nops(&hdr); 21571da177e4SLinus Torvalds } 21581da177e4SLinus Torvalds 21591da177e4SLinus Torvalds /* 21601da177e4SLinus Torvalds * Encode LOOKUP request 21611da177e4SLinus Torvalds */ 21629f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 21639f06c719SChuck Lever const struct nfs4_lookup_arg *args) 21641da177e4SLinus Torvalds { 21651da177e4SLinus Torvalds struct compound_hdr hdr = { 216666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21671da177e4SLinus Torvalds }; 21681da177e4SLinus Torvalds 21699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21709f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21719f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21729f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21739f06c719SChuck Lever encode_getfh(xdr, &hdr); 21749f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2175d017931cSAndy Adamson encode_nops(&hdr); 21761da177e4SLinus Torvalds } 21771da177e4SLinus Torvalds 21781da177e4SLinus Torvalds /* 21791da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21801da177e4SLinus Torvalds */ 21819f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21829f06c719SChuck Lever struct xdr_stream *xdr, 21839f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21841da177e4SLinus Torvalds { 21851da177e4SLinus Torvalds struct compound_hdr hdr = { 218666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21871da177e4SLinus Torvalds }; 21881da177e4SLinus Torvalds 21899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21919f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21929f06c719SChuck Lever encode_getfh(xdr, &hdr); 21939f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2194d017931cSAndy Adamson encode_nops(&hdr); 21951da177e4SLinus Torvalds } 21961da177e4SLinus Torvalds 21971da177e4SLinus Torvalds /* 21981da177e4SLinus Torvalds * Encode REMOVE request 21991da177e4SLinus Torvalds */ 22009f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 22019f06c719SChuck Lever const struct nfs_removeargs *args) 22021da177e4SLinus Torvalds { 22031da177e4SLinus Torvalds struct compound_hdr hdr = { 220466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22051da177e4SLinus Torvalds }; 22061da177e4SLinus Torvalds 22079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22099f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22109f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 22119f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2212d017931cSAndy Adamson encode_nops(&hdr); 22131da177e4SLinus Torvalds } 22141da177e4SLinus Torvalds 22151da177e4SLinus Torvalds /* 22161da177e4SLinus Torvalds * Encode RENAME request 22171da177e4SLinus Torvalds */ 22189f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 22199f06c719SChuck Lever const struct nfs_renameargs *args) 22201da177e4SLinus Torvalds { 22211da177e4SLinus Torvalds struct compound_hdr hdr = { 222266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22231da177e4SLinus Torvalds }; 22241da177e4SLinus Torvalds 22259f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22269f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22279f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 22289f06c719SChuck Lever encode_savefh(xdr, &hdr); 22299f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 22309f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 22319f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22329f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22339f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2234d017931cSAndy Adamson encode_nops(&hdr); 22351da177e4SLinus Torvalds } 22361da177e4SLinus Torvalds 22371da177e4SLinus Torvalds /* 22381da177e4SLinus Torvalds * Encode LINK request 22391da177e4SLinus Torvalds */ 22409f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 22419f06c719SChuck Lever const struct nfs4_link_arg *args) 22421da177e4SLinus Torvalds { 22431da177e4SLinus Torvalds struct compound_hdr hdr = { 224466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22451da177e4SLinus Torvalds }; 22461da177e4SLinus Torvalds 22479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22489f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22499f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22509f06c719SChuck Lever encode_savefh(xdr, &hdr); 22519f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22529f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 22539f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22549f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22559f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2256d017931cSAndy Adamson encode_nops(&hdr); 22571da177e4SLinus Torvalds } 22581da177e4SLinus Torvalds 22591da177e4SLinus Torvalds /* 22601da177e4SLinus Torvalds * Encode CREATE request 22611da177e4SLinus Torvalds */ 22629f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 22639f06c719SChuck Lever const struct nfs4_create_arg *args) 22641da177e4SLinus Torvalds { 22651da177e4SLinus Torvalds struct compound_hdr hdr = { 226666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22671da177e4SLinus Torvalds }; 22681da177e4SLinus Torvalds 22699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22709f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22719f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22729f06c719SChuck Lever encode_savefh(xdr, &hdr); 22739f06c719SChuck Lever encode_create(xdr, args, &hdr); 22749f06c719SChuck Lever encode_getfh(xdr, &hdr); 22759f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22769f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22779f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2278d017931cSAndy Adamson encode_nops(&hdr); 22791da177e4SLinus Torvalds } 22801da177e4SLinus Torvalds 22811da177e4SLinus Torvalds /* 22821da177e4SLinus Torvalds * Encode SYMLINK request 22831da177e4SLinus Torvalds */ 22849f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22859f06c719SChuck Lever const struct nfs4_create_arg *args) 22861da177e4SLinus Torvalds { 22879f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22881da177e4SLinus Torvalds } 22891da177e4SLinus Torvalds 22901da177e4SLinus Torvalds /* 22911da177e4SLinus Torvalds * Encode GETATTR request 22921da177e4SLinus Torvalds */ 22939f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22949f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22951da177e4SLinus Torvalds { 22961da177e4SLinus Torvalds struct compound_hdr hdr = { 229766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22981da177e4SLinus Torvalds }; 22991da177e4SLinus Torvalds 23009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23039f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2304d017931cSAndy Adamson encode_nops(&hdr); 23051da177e4SLinus Torvalds } 23061da177e4SLinus Torvalds 23071da177e4SLinus Torvalds /* 23081da177e4SLinus Torvalds * Encode a CLOSE request 23091da177e4SLinus Torvalds */ 23109f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 23119f06c719SChuck Lever struct nfs_closeargs *args) 23121da177e4SLinus Torvalds { 23131da177e4SLinus Torvalds struct compound_hdr hdr = { 231466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23151da177e4SLinus Torvalds }; 23161da177e4SLinus Torvalds 23179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23189f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23199f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23209f06c719SChuck Lever encode_close(xdr, args, &hdr); 23219f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2322d017931cSAndy Adamson encode_nops(&hdr); 23231da177e4SLinus Torvalds } 23241da177e4SLinus Torvalds 23251da177e4SLinus Torvalds /* 23261da177e4SLinus Torvalds * Encode an OPEN request 23271da177e4SLinus Torvalds */ 23289f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 23299f06c719SChuck Lever struct nfs_openargs *args) 23301da177e4SLinus Torvalds { 23311da177e4SLinus Torvalds struct compound_hdr hdr = { 233266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23331da177e4SLinus Torvalds }; 23341da177e4SLinus Torvalds 23359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23369f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23379f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23389f06c719SChuck Lever encode_savefh(xdr, &hdr); 23399f06c719SChuck Lever encode_open(xdr, args, &hdr); 23409f06c719SChuck Lever encode_getfh(xdr, &hdr); 23419f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 23429f06c719SChuck Lever encode_restorefh(xdr, &hdr); 23436926afd1STrond Myklebust encode_getfattr(xdr, args->dir_bitmask, &hdr); 2344d017931cSAndy Adamson encode_nops(&hdr); 23451da177e4SLinus Torvalds } 23461da177e4SLinus Torvalds 23471da177e4SLinus Torvalds /* 23481da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 23491da177e4SLinus Torvalds */ 23509f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 23519f06c719SChuck Lever struct xdr_stream *xdr, 23529f06c719SChuck Lever struct nfs_open_confirmargs *args) 23531da177e4SLinus Torvalds { 23541da177e4SLinus Torvalds struct compound_hdr hdr = { 2355d017931cSAndy Adamson .nops = 0, 23561da177e4SLinus Torvalds }; 23571da177e4SLinus Torvalds 23589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23599f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23609f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2361d017931cSAndy Adamson encode_nops(&hdr); 23621da177e4SLinus Torvalds } 23631da177e4SLinus Torvalds 23641da177e4SLinus Torvalds /* 23651da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23661da177e4SLinus Torvalds */ 23679f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23689f06c719SChuck Lever struct xdr_stream *xdr, 23699f06c719SChuck Lever struct nfs_openargs *args) 23701da177e4SLinus Torvalds { 23711da177e4SLinus Torvalds struct compound_hdr hdr = { 237266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23731da177e4SLinus Torvalds }; 23741da177e4SLinus Torvalds 23759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23769f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23779f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23789f06c719SChuck Lever encode_open(xdr, args, &hdr); 23799f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2380d017931cSAndy Adamson encode_nops(&hdr); 23811da177e4SLinus Torvalds } 23821da177e4SLinus Torvalds 23831da177e4SLinus Torvalds /* 23841da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23851da177e4SLinus Torvalds */ 23869f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23879f06c719SChuck Lever struct xdr_stream *xdr, 23889f06c719SChuck Lever struct nfs_closeargs *args) 23891da177e4SLinus Torvalds { 23901da177e4SLinus Torvalds struct compound_hdr hdr = { 239166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23921da177e4SLinus Torvalds }; 23931da177e4SLinus Torvalds 23949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23959f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23969f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23979f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 23989f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2399d017931cSAndy Adamson encode_nops(&hdr); 24001da177e4SLinus Torvalds } 24011da177e4SLinus Torvalds 24021da177e4SLinus Torvalds /* 24031da177e4SLinus Torvalds * Encode a LOCK request 24041da177e4SLinus Torvalds */ 24059f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 24069f06c719SChuck Lever struct nfs_lock_args *args) 24071da177e4SLinus Torvalds { 24081da177e4SLinus Torvalds struct compound_hdr hdr = { 240966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24101da177e4SLinus Torvalds }; 24111da177e4SLinus Torvalds 24129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24139f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24149f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24159f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2416d017931cSAndy Adamson encode_nops(&hdr); 24171da177e4SLinus Torvalds } 24181da177e4SLinus Torvalds 24191da177e4SLinus Torvalds /* 24201da177e4SLinus Torvalds * Encode a LOCKT request 24211da177e4SLinus Torvalds */ 24229f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 24239f06c719SChuck Lever struct nfs_lockt_args *args) 24241da177e4SLinus Torvalds { 24251da177e4SLinus Torvalds struct compound_hdr hdr = { 242666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24271da177e4SLinus Torvalds }; 24281da177e4SLinus Torvalds 24299f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24309f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24319f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24329f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2433d017931cSAndy Adamson encode_nops(&hdr); 24341da177e4SLinus Torvalds } 24351da177e4SLinus Torvalds 24361da177e4SLinus Torvalds /* 24371da177e4SLinus Torvalds * Encode a LOCKU request 24381da177e4SLinus Torvalds */ 24399f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 24409f06c719SChuck Lever struct nfs_locku_args *args) 24411da177e4SLinus Torvalds { 24421da177e4SLinus Torvalds struct compound_hdr hdr = { 244366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24441da177e4SLinus Torvalds }; 24451da177e4SLinus Torvalds 24469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24499f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2450d017931cSAndy Adamson encode_nops(&hdr); 24511da177e4SLinus Torvalds } 24521da177e4SLinus Torvalds 24539f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 24549f06c719SChuck Lever struct xdr_stream *xdr, 24559f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2456d3c7b7ccSTrond Myklebust { 2457d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2458d3c7b7ccSTrond Myklebust .minorversion = 0, 2459d3c7b7ccSTrond Myklebust }; 2460d3c7b7ccSTrond Myklebust 24619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24629f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2463d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2464d3c7b7ccSTrond Myklebust } 2465d3c7b7ccSTrond Myklebust 24661da177e4SLinus Torvalds /* 24671da177e4SLinus Torvalds * Encode a READLINK request 24681da177e4SLinus Torvalds */ 24699f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 24709f06c719SChuck Lever const struct nfs4_readlink *args) 24711da177e4SLinus Torvalds { 24721da177e4SLinus Torvalds struct compound_hdr hdr = { 247366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24741da177e4SLinus Torvalds }; 24751da177e4SLinus Torvalds 24769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24779f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24789f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24799f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2480e3a535e1STrond Myklebust 248128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2482e3a535e1STrond Myklebust args->pgbase, args->pglen); 2483d017931cSAndy Adamson encode_nops(&hdr); 24841da177e4SLinus Torvalds } 24851da177e4SLinus Torvalds 24861da177e4SLinus Torvalds /* 24871da177e4SLinus Torvalds * Encode a READDIR request 24881da177e4SLinus Torvalds */ 24899f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24909f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24911da177e4SLinus Torvalds { 24921da177e4SLinus Torvalds struct compound_hdr hdr = { 249366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24941da177e4SLinus Torvalds }; 24951da177e4SLinus Torvalds 24969f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24979f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24989f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24999f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2500d6ac02dfSTrond Myklebust 250128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2502d6ac02dfSTrond Myklebust args->pgbase, args->count); 2503d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 250428f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2505d6ac02dfSTrond Myklebust args->pgbase, args->count); 2506d017931cSAndy Adamson encode_nops(&hdr); 25071da177e4SLinus Torvalds } 25081da177e4SLinus Torvalds 25091da177e4SLinus Torvalds /* 25101da177e4SLinus Torvalds * Encode a READ request 25111da177e4SLinus Torvalds */ 25129f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 25139f06c719SChuck Lever struct nfs_readargs *args) 25141da177e4SLinus Torvalds { 25151da177e4SLinus Torvalds struct compound_hdr hdr = { 251666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25171da177e4SLinus Torvalds }; 25181da177e4SLinus Torvalds 25199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25209f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25219f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25229f06c719SChuck Lever encode_read(xdr, args, &hdr); 25231da177e4SLinus Torvalds 252428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 25251da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 25264f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2527d017931cSAndy Adamson encode_nops(&hdr); 25281da177e4SLinus Torvalds } 25291da177e4SLinus Torvalds 25301da177e4SLinus Torvalds /* 25311da177e4SLinus Torvalds * Encode an SETATTR request 25321da177e4SLinus Torvalds */ 25339f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 25349f06c719SChuck Lever struct nfs_setattrargs *args) 25351da177e4SLinus Torvalds { 25361da177e4SLinus Torvalds struct compound_hdr hdr = { 253766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25381da177e4SLinus Torvalds }; 25391da177e4SLinus Torvalds 25409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25439f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 25449f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2545d017931cSAndy Adamson encode_nops(&hdr); 25461da177e4SLinus Torvalds } 25471da177e4SLinus Torvalds 25481da177e4SLinus Torvalds /* 2549029d105eSJ. Bruce Fields * Encode a GETACL request 2550029d105eSJ. Bruce Fields */ 25519f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2552029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2553029d105eSJ. Bruce Fields { 2554029d105eSJ. Bruce Fields struct compound_hdr hdr = { 255566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2556029d105eSJ. Bruce Fields }; 255728f56694SBenny Halevy uint32_t replen; 2558029d105eSJ. Bruce Fields 25599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25619f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2562bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 25639f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2564cf8cdbe5SAndy Adamson 256528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2566029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2567bf118a34SAndy Adamson xdr_set_scratch_buffer(xdr, page_address(args->acl_scratch), PAGE_SIZE); 2568bf118a34SAndy Adamson 2569d017931cSAndy Adamson encode_nops(&hdr); 2570029d105eSJ. Bruce Fields } 2571029d105eSJ. Bruce Fields 2572029d105eSJ. Bruce Fields /* 25731da177e4SLinus Torvalds * Encode a WRITE request 25741da177e4SLinus Torvalds */ 25759f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25769f06c719SChuck Lever struct nfs_writeargs *args) 25771da177e4SLinus Torvalds { 25781da177e4SLinus Torvalds struct compound_hdr hdr = { 257966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25801da177e4SLinus Torvalds }; 25811da177e4SLinus Torvalds 25829f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25839f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25849f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25859f06c719SChuck Lever encode_write(xdr, args, &hdr); 25864f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25877ffd1064SFred Isaman if (args->bitmask) 25889f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2589d017931cSAndy Adamson encode_nops(&hdr); 25901da177e4SLinus Torvalds } 25911da177e4SLinus Torvalds 25921da177e4SLinus Torvalds /* 25931da177e4SLinus Torvalds * a COMMIT request 25941da177e4SLinus Torvalds */ 25959f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25969f06c719SChuck Lever struct nfs_writeargs *args) 25971da177e4SLinus Torvalds { 25981da177e4SLinus Torvalds struct compound_hdr hdr = { 259966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26001da177e4SLinus Torvalds }; 26011da177e4SLinus Torvalds 26029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26049f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26059f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2606988b6dceSFred Isaman if (args->bitmask) 26079f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2608d017931cSAndy Adamson encode_nops(&hdr); 26091da177e4SLinus Torvalds } 26101da177e4SLinus Torvalds 26111da177e4SLinus Torvalds /* 26121da177e4SLinus Torvalds * FSINFO request 26131da177e4SLinus Torvalds */ 26149f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 26159f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 26161da177e4SLinus Torvalds { 26171da177e4SLinus Torvalds struct compound_hdr hdr = { 261866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26191da177e4SLinus Torvalds }; 26201da177e4SLinus Torvalds 26219f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26229f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26239f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26249f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2625d017931cSAndy Adamson encode_nops(&hdr); 26261da177e4SLinus Torvalds } 26271da177e4SLinus Torvalds 26281da177e4SLinus Torvalds /* 26291da177e4SLinus Torvalds * a PATHCONF request 26301da177e4SLinus Torvalds */ 26319f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 26329f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 26331da177e4SLinus Torvalds { 26341da177e4SLinus Torvalds struct compound_hdr hdr = { 263566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26361da177e4SLinus Torvalds }; 26371da177e4SLinus Torvalds 26389f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26399f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26409f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26419f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2642d017931cSAndy Adamson &hdr); 2643d017931cSAndy Adamson encode_nops(&hdr); 26441da177e4SLinus Torvalds } 26451da177e4SLinus Torvalds 26461da177e4SLinus Torvalds /* 26471da177e4SLinus Torvalds * a STATFS request 26481da177e4SLinus Torvalds */ 26499f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 26509f06c719SChuck Lever const struct nfs4_statfs_arg *args) 26511da177e4SLinus Torvalds { 26521da177e4SLinus Torvalds struct compound_hdr hdr = { 265366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26541da177e4SLinus Torvalds }; 26551da177e4SLinus Torvalds 26569f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26579f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26589f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26599f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2660d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2661d017931cSAndy Adamson encode_nops(&hdr); 26621da177e4SLinus Torvalds } 26631da177e4SLinus Torvalds 26641da177e4SLinus Torvalds /* 26651da177e4SLinus Torvalds * GETATTR_BITMAP request 26661da177e4SLinus Torvalds */ 26679f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26689f06c719SChuck Lever struct xdr_stream *xdr, 266943652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 26701da177e4SLinus Torvalds { 26711da177e4SLinus Torvalds struct compound_hdr hdr = { 267266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26731da177e4SLinus Torvalds }; 26741da177e4SLinus Torvalds 26759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26769f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26779f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26789f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 26791da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 26801da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2681d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2682d017931cSAndy Adamson encode_nops(&hdr); 26831da177e4SLinus Torvalds } 26841da177e4SLinus Torvalds 26851da177e4SLinus Torvalds /* 26861da177e4SLinus Torvalds * a RENEW request 26871da177e4SLinus Torvalds */ 26889f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 26899f06c719SChuck Lever struct nfs_client *clp) 26901da177e4SLinus Torvalds { 26911da177e4SLinus Torvalds struct compound_hdr hdr = { 2692d017931cSAndy Adamson .nops = 0, 26931da177e4SLinus Torvalds }; 26941da177e4SLinus Torvalds 26959f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2696bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2697d017931cSAndy Adamson encode_nops(&hdr); 26981da177e4SLinus Torvalds } 26991da177e4SLinus Torvalds 27001da177e4SLinus Torvalds /* 27011da177e4SLinus Torvalds * a SETCLIENTID request 27021da177e4SLinus Torvalds */ 27039f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 27049f06c719SChuck Lever struct xdr_stream *xdr, 27059f06c719SChuck Lever struct nfs4_setclientid *sc) 27061da177e4SLinus Torvalds { 27071da177e4SLinus Torvalds struct compound_hdr hdr = { 2708d017931cSAndy Adamson .nops = 0, 27091da177e4SLinus Torvalds }; 27101da177e4SLinus Torvalds 27119f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27129f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2713d017931cSAndy Adamson encode_nops(&hdr); 27141da177e4SLinus Torvalds } 27151da177e4SLinus Torvalds 27161da177e4SLinus Torvalds /* 27171da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 27181da177e4SLinus Torvalds */ 27199f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 27209f06c719SChuck Lever struct xdr_stream *xdr, 27219f06c719SChuck Lever struct nfs4_setclientid_res *arg) 27221da177e4SLinus Torvalds { 27231da177e4SLinus Torvalds struct compound_hdr hdr = { 2724d017931cSAndy Adamson .nops = 0, 27251da177e4SLinus Torvalds }; 2726dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27271da177e4SLinus Torvalds 27289f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27299f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 27309f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27319f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2732d017931cSAndy Adamson encode_nops(&hdr); 27331da177e4SLinus Torvalds } 27341da177e4SLinus Torvalds 27351da177e4SLinus Torvalds /* 27361da177e4SLinus Torvalds * DELEGRETURN request 27371da177e4SLinus Torvalds */ 27389f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 27399f06c719SChuck Lever struct xdr_stream *xdr, 27409f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 27411da177e4SLinus Torvalds { 27421da177e4SLinus Torvalds struct compound_hdr hdr = { 274366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27441da177e4SLinus Torvalds }; 27451da177e4SLinus Torvalds 27469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27489f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 27499f06c719SChuck Lever encode_delegreturn(xdr, args->stateid, &hdr); 27509f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2751d017931cSAndy Adamson encode_nops(&hdr); 27521da177e4SLinus Torvalds } 27531da177e4SLinus Torvalds 27541da177e4SLinus Torvalds /* 2755683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2756683b57b4STrond Myklebust */ 27579f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 27589f06c719SChuck Lever struct xdr_stream *xdr, 27599f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2760683b57b4STrond Myklebust { 2761683b57b4STrond Myklebust struct compound_hdr hdr = { 276266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2763683b57b4STrond Myklebust }; 276428f56694SBenny Halevy uint32_t replen; 2765683b57b4STrond Myklebust 27669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27679f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27689f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27699f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 277028f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 27719f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2772cf8cdbe5SAndy Adamson 277328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2774683b57b4STrond Myklebust 0, PAGE_SIZE); 2775d017931cSAndy Adamson encode_nops(&hdr); 2776683b57b4STrond Myklebust } 2777683b57b4STrond Myklebust 27785a5ea0d4SBryan Schumaker /* 27795a5ea0d4SBryan Schumaker * Encode SECINFO request 27805a5ea0d4SBryan Schumaker */ 27815a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27825a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27835a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27845a5ea0d4SBryan Schumaker { 27855a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27865a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27875a5ea0d4SBryan Schumaker }; 27885a5ea0d4SBryan Schumaker 27895a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27905a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27915a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27925a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27935a5ea0d4SBryan Schumaker encode_nops(&hdr); 27945a5ea0d4SBryan Schumaker } 27955a5ea0d4SBryan Schumaker 279699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 279799fe60d0SBenny Halevy /* 279899fe60d0SBenny Halevy * EXCHANGE_ID request 279999fe60d0SBenny Halevy */ 28009f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 28019f06c719SChuck Lever struct xdr_stream *xdr, 280299fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 280399fe60d0SBenny Halevy { 280499fe60d0SBenny Halevy struct compound_hdr hdr = { 2805a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 280699fe60d0SBenny Halevy }; 280799fe60d0SBenny Halevy 28089f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28099f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 281099fe60d0SBenny Halevy encode_nops(&hdr); 281199fe60d0SBenny Halevy } 28122050f0ccSAndy Adamson 28132050f0ccSAndy Adamson /* 2814fc931582SAndy Adamson * a CREATE_SESSION request 2815fc931582SAndy Adamson */ 28169f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 28179f06c719SChuck Lever struct xdr_stream *xdr, 2818fc931582SAndy Adamson struct nfs41_create_session_args *args) 2819fc931582SAndy Adamson { 2820fc931582SAndy Adamson struct compound_hdr hdr = { 2821a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2822fc931582SAndy Adamson }; 2823fc931582SAndy Adamson 28249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28259f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2826fc931582SAndy Adamson encode_nops(&hdr); 2827fc931582SAndy Adamson } 2828fc931582SAndy Adamson 2829fc931582SAndy Adamson /* 28300f3e66c6SAndy Adamson * a DESTROY_SESSION request 28310f3e66c6SAndy Adamson */ 28329f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 28339f06c719SChuck Lever struct xdr_stream *xdr, 28340f3e66c6SAndy Adamson struct nfs4_session *session) 28350f3e66c6SAndy Adamson { 28360f3e66c6SAndy Adamson struct compound_hdr hdr = { 2837a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28380f3e66c6SAndy Adamson }; 28390f3e66c6SAndy Adamson 28409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28419f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28420f3e66c6SAndy Adamson encode_nops(&hdr); 28430f3e66c6SAndy Adamson } 28440f3e66c6SAndy Adamson 28450f3e66c6SAndy Adamson /* 2846fc01cea9SAndy Adamson * a SEQUENCE request 2847fc01cea9SAndy Adamson */ 28489f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2849fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2850fc01cea9SAndy Adamson { 2851fc01cea9SAndy Adamson struct compound_hdr hdr = { 2852fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2853fc01cea9SAndy Adamson }; 2854fc01cea9SAndy Adamson 28559f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28569f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2857fc01cea9SAndy Adamson encode_nops(&hdr); 2858fc01cea9SAndy Adamson } 2859fc01cea9SAndy Adamson 2860fc01cea9SAndy Adamson /* 28612050f0ccSAndy Adamson * a GET_LEASE_TIME request 28622050f0ccSAndy Adamson */ 28639f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28649f06c719SChuck Lever struct xdr_stream *xdr, 28652050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28662050f0ccSAndy Adamson { 28672050f0ccSAndy Adamson struct compound_hdr hdr = { 28682050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28692050f0ccSAndy Adamson }; 2870dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28712050f0ccSAndy Adamson 28729f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28739f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28749f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28759f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28762050f0ccSAndy Adamson encode_nops(&hdr); 28772050f0ccSAndy Adamson } 287818019753SRicardo Labiaga 287918019753SRicardo Labiaga /* 288018019753SRicardo Labiaga * a RECLAIM_COMPLETE request 288118019753SRicardo Labiaga */ 28829f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28839f06c719SChuck Lever struct xdr_stream *xdr, 288418019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 288518019753SRicardo Labiaga { 288618019753SRicardo Labiaga struct compound_hdr hdr = { 288718019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 288818019753SRicardo Labiaga }; 288918019753SRicardo Labiaga 28909f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28919f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28929f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 289318019753SRicardo Labiaga encode_nops(&hdr); 289418019753SRicardo Labiaga } 289518019753SRicardo Labiaga 2896b1f69b75SAndy Adamson /* 28977f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28987f11d8d3SAndy Adamson */ 28997f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 29007f11d8d3SAndy Adamson struct xdr_stream *xdr, 29017f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 29027f11d8d3SAndy Adamson { 29037f11d8d3SAndy Adamson struct compound_hdr hdr = { 29047f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29057f11d8d3SAndy Adamson }; 29067f11d8d3SAndy Adamson 29077f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 29087f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 29097f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 29107f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 29117f11d8d3SAndy Adamson encode_nops(&hdr); 29127f11d8d3SAndy Adamson } 29137f11d8d3SAndy Adamson 29147f11d8d3SAndy Adamson /* 2915b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2916b1f69b75SAndy Adamson */ 29179f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 29189f06c719SChuck Lever struct xdr_stream *xdr, 2919b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2920b1f69b75SAndy Adamson { 2921b1f69b75SAndy Adamson struct compound_hdr hdr = { 2922b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2923b1f69b75SAndy Adamson }; 2924b1f69b75SAndy Adamson 29259f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29269f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29279f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2928b1f69b75SAndy Adamson 2929b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2930b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2931b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2932b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2933b1f69b75SAndy Adamson args->pdev->pglen); 2934b1f69b75SAndy Adamson 2935b1f69b75SAndy Adamson encode_nops(&hdr); 2936b1f69b75SAndy Adamson } 2937b1f69b75SAndy Adamson 2938b1f69b75SAndy Adamson /* 2939b1f69b75SAndy Adamson * Encode LAYOUTGET request 2940b1f69b75SAndy Adamson */ 29419f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29429f06c719SChuck Lever struct xdr_stream *xdr, 2943b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2944b1f69b75SAndy Adamson { 2945b1f69b75SAndy Adamson struct compound_hdr hdr = { 2946b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2947b1f69b75SAndy Adamson }; 2948b1f69b75SAndy Adamson 29499f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29509f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29519f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29529f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 295335124a09SWeston Andros Adamson 295435124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 295535124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 295635124a09SWeston Andros Adamson 2957b1f69b75SAndy Adamson encode_nops(&hdr); 2958b1f69b75SAndy Adamson } 2959863a3c6cSAndy Adamson 2960863a3c6cSAndy Adamson /* 2961863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2962863a3c6cSAndy Adamson */ 2963cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2964863a3c6cSAndy Adamson struct xdr_stream *xdr, 2965863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2966863a3c6cSAndy Adamson { 2967ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2968ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2969863a3c6cSAndy Adamson struct compound_hdr hdr = { 2970863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2971863a3c6cSAndy Adamson }; 2972863a3c6cSAndy Adamson 2973863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2974863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2975863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2976ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2977863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2978863a3c6cSAndy Adamson encode_nops(&hdr); 2979cbe82603SBenny Halevy } 2980cbe82603SBenny Halevy 2981cbe82603SBenny Halevy /* 2982cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2983cbe82603SBenny Halevy */ 2984cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2985cbe82603SBenny Halevy struct xdr_stream *xdr, 2986cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2987cbe82603SBenny Halevy { 2988cbe82603SBenny Halevy struct compound_hdr hdr = { 2989cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2990cbe82603SBenny Halevy }; 2991cbe82603SBenny Halevy 2992cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2993cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2994cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2995cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2996cbe82603SBenny Halevy encode_nops(&hdr); 2997863a3c6cSAndy Adamson } 2998fca78d6dSBryan Schumaker 2999fca78d6dSBryan Schumaker /* 3000fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 3001fca78d6dSBryan Schumaker */ 3002fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 3003fca78d6dSBryan Schumaker struct xdr_stream *xdr, 3004fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 3005fca78d6dSBryan Schumaker { 3006fca78d6dSBryan Schumaker struct compound_hdr hdr = { 3007fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3008fca78d6dSBryan Schumaker }; 3009fca78d6dSBryan Schumaker 3010fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 3011fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 3012fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 3013fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 3014fca78d6dSBryan Schumaker encode_nops(&hdr); 3015fca78d6dSBryan Schumaker return 0; 3016fca78d6dSBryan Schumaker } 30177d974794SBryan Schumaker 30187d974794SBryan Schumaker /* 30197d974794SBryan Schumaker * Encode TEST_STATEID request 30207d974794SBryan Schumaker */ 30217d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 30227d974794SBryan Schumaker struct xdr_stream *xdr, 30237d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 30247d974794SBryan Schumaker { 30257d974794SBryan Schumaker struct compound_hdr hdr = { 30267d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30277d974794SBryan Schumaker }; 30287d974794SBryan Schumaker 30297d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30307d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30317d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 30327d974794SBryan Schumaker encode_nops(&hdr); 30337d974794SBryan Schumaker } 30349aeda35fSBryan Schumaker 30359aeda35fSBryan Schumaker /* 30369aeda35fSBryan Schumaker * Encode FREE_STATEID request 30379aeda35fSBryan Schumaker */ 30389aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30399aeda35fSBryan Schumaker struct xdr_stream *xdr, 30409aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 30419aeda35fSBryan Schumaker { 30429aeda35fSBryan Schumaker struct compound_hdr hdr = { 30439aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30449aeda35fSBryan Schumaker }; 30459aeda35fSBryan Schumaker 30469aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30479aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30489aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30499aeda35fSBryan Schumaker encode_nops(&hdr); 30509aeda35fSBryan Schumaker } 305199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 305299fe60d0SBenny Halevy 3053686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3054686841b3SBenny Halevy { 3055686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3056686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3057686841b3SBenny Halevy func, xdr->end - xdr->p); 3058686841b3SBenny Halevy } 30591da177e4SLinus Torvalds 3060683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30611da177e4SLinus Torvalds { 30628687b63aSAl Viro __be32 *p; 30631da177e4SLinus Torvalds 3064c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3065c0eae66eSBenny Halevy if (unlikely(!p)) 3066c0eae66eSBenny Halevy goto out_overflow; 3067cccddf4fSBenny Halevy *len = be32_to_cpup(p); 3068c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 3069c0eae66eSBenny Halevy if (unlikely(!p)) 3070c0eae66eSBenny Halevy goto out_overflow; 30711da177e4SLinus Torvalds *string = (char *)p; 30721da177e4SLinus Torvalds return 0; 3073c0eae66eSBenny Halevy out_overflow: 3074c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3075c0eae66eSBenny Halevy return -EIO; 30761da177e4SLinus Torvalds } 30771da177e4SLinus Torvalds 30781da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30791da177e4SLinus Torvalds { 30808687b63aSAl Viro __be32 *p; 30811da177e4SLinus Torvalds 3082c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3083c0eae66eSBenny Halevy if (unlikely(!p)) 3084c0eae66eSBenny Halevy goto out_overflow; 30856f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3086cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30871da177e4SLinus Torvalds 3088c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3089c0eae66eSBenny Halevy if (unlikely(!p)) 3090c0eae66eSBenny Halevy goto out_overflow; 30911da177e4SLinus Torvalds hdr->tag = (char *)p; 30921da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3093cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3094aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3095aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30961da177e4SLinus Torvalds return 0; 3097c0eae66eSBenny Halevy out_overflow: 3098c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3099c0eae66eSBenny Halevy return -EIO; 31001da177e4SLinus Torvalds } 31011da177e4SLinus Torvalds 31021da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 31031da177e4SLinus Torvalds { 31048687b63aSAl Viro __be32 *p; 31051da177e4SLinus Torvalds uint32_t opnum; 31061da177e4SLinus Torvalds int32_t nfserr; 31071da177e4SLinus Torvalds 3108c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3109c0eae66eSBenny Halevy if (unlikely(!p)) 3110c0eae66eSBenny Halevy goto out_overflow; 31116f723f77SBenny Halevy opnum = be32_to_cpup(p++); 31121da177e4SLinus Torvalds if (opnum != expected) { 3113fe82a183SChuck Lever dprintk("nfs: Server returned operation" 31141da177e4SLinus Torvalds " %d but we issued a request for %d\n", 31151da177e4SLinus Torvalds opnum, expected); 31161da177e4SLinus Torvalds return -EIO; 31171da177e4SLinus Torvalds } 3118cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 31191da177e4SLinus Torvalds if (nfserr != NFS_OK) 3120856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 31211da177e4SLinus Torvalds return 0; 3122c0eae66eSBenny Halevy out_overflow: 3123c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3124c0eae66eSBenny Halevy return -EIO; 31251da177e4SLinus Torvalds } 31261da177e4SLinus Torvalds 31271da177e4SLinus Torvalds /* Dummy routine */ 3128adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 31291da177e4SLinus Torvalds { 31308687b63aSAl Viro __be32 *p; 3131683b57b4STrond Myklebust unsigned int strlen; 31321da177e4SLinus Torvalds char *str; 31331da177e4SLinus Torvalds 3134c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3135c0eae66eSBenny Halevy if (likely(p)) 31361da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3137c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3138c0eae66eSBenny Halevy return -EIO; 31391da177e4SLinus Torvalds } 31401da177e4SLinus Torvalds 31411da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31421da177e4SLinus Torvalds { 31438687b63aSAl Viro uint32_t bmlen; 31448687b63aSAl Viro __be32 *p; 31451da177e4SLinus Torvalds 3146c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3147c0eae66eSBenny Halevy if (unlikely(!p)) 3148c0eae66eSBenny Halevy goto out_overflow; 3149cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31501da177e4SLinus Torvalds 3151dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3152c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3153c0eae66eSBenny Halevy if (unlikely(!p)) 3154c0eae66eSBenny Halevy goto out_overflow; 31551da177e4SLinus Torvalds if (bmlen > 0) { 31566f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3157dae100c2SFred Isaman if (bmlen > 1) { 3158dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3159dae100c2SFred Isaman if (bmlen > 2) 3160dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3161dae100c2SFred Isaman } 31621da177e4SLinus Torvalds } 31631da177e4SLinus Torvalds return 0; 3164c0eae66eSBenny Halevy out_overflow: 3165c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3166c0eae66eSBenny Halevy return -EIO; 31671da177e4SLinus Torvalds } 31681da177e4SLinus Torvalds 31698687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 31701da177e4SLinus Torvalds { 31718687b63aSAl Viro __be32 *p; 31721da177e4SLinus Torvalds 3173c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3174c0eae66eSBenny Halevy if (unlikely(!p)) 3175c0eae66eSBenny Halevy goto out_overflow; 3176cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 31771da177e4SLinus Torvalds *savep = xdr->p; 31781da177e4SLinus Torvalds return 0; 3179c0eae66eSBenny Halevy out_overflow: 3180c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3181c0eae66eSBenny Halevy return -EIO; 31821da177e4SLinus Torvalds } 31831da177e4SLinus Torvalds 31841da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31851da177e4SLinus Torvalds { 31861da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31873388bff5SRoman Borisov int ret; 31883388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31893388bff5SRoman Borisov if (unlikely(ret < 0)) 31903388bff5SRoman Borisov return ret; 31911da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31921da177e4SLinus Torvalds } else 3193dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3194dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3195dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31961da177e4SLinus Torvalds return 0; 31971da177e4SLinus Torvalds } 31981da177e4SLinus Torvalds 31991da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 32001da177e4SLinus Torvalds { 32018687b63aSAl Viro __be32 *p; 3202409924e4STrond Myklebust int ret = 0; 32031da177e4SLinus Torvalds 32041da177e4SLinus Torvalds *type = 0; 32051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 32061da177e4SLinus Torvalds return -EIO; 32071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3208c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3209c0eae66eSBenny Halevy if (unlikely(!p)) 3210c0eae66eSBenny Halevy goto out_overflow; 3211cccddf4fSBenny Halevy *type = be32_to_cpup(p); 32121da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 32133110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 32141da177e4SLinus Torvalds return -EIO; 32151da177e4SLinus Torvalds } 32161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3217409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32181da177e4SLinus Torvalds } 3219bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3220409924e4STrond Myklebust return ret; 3221c0eae66eSBenny Halevy out_overflow: 3222c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3223c0eae66eSBenny Halevy return -EIO; 32241da177e4SLinus Torvalds } 32251da177e4SLinus Torvalds 32261da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 32271da177e4SLinus Torvalds { 32288687b63aSAl Viro __be32 *p; 3229409924e4STrond Myklebust int ret = 0; 32301da177e4SLinus Torvalds 32311da177e4SLinus Torvalds *change = 0; 32321da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 32331da177e4SLinus Torvalds return -EIO; 32341da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3235c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3236c0eae66eSBenny Halevy if (unlikely(!p)) 3237c0eae66eSBenny Halevy goto out_overflow; 3238cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 32391da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3240409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 32411da177e4SLinus Torvalds } 32423110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32431da177e4SLinus Torvalds (unsigned long long)*change); 3244409924e4STrond Myklebust return ret; 3245c0eae66eSBenny Halevy out_overflow: 3246c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3247c0eae66eSBenny Halevy return -EIO; 32481da177e4SLinus Torvalds } 32491da177e4SLinus Torvalds 32501da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32511da177e4SLinus Torvalds { 32528687b63aSAl Viro __be32 *p; 3253409924e4STrond Myklebust int ret = 0; 32541da177e4SLinus Torvalds 32551da177e4SLinus Torvalds *size = 0; 32561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32571da177e4SLinus Torvalds return -EIO; 32581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3259c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3260c0eae66eSBenny Halevy if (unlikely(!p)) 3261c0eae66eSBenny Halevy goto out_overflow; 3262cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3264409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32651da177e4SLinus Torvalds } 32663110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3267409924e4STrond Myklebust return ret; 3268c0eae66eSBenny Halevy out_overflow: 3269c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3270c0eae66eSBenny Halevy return -EIO; 32711da177e4SLinus Torvalds } 32721da177e4SLinus Torvalds 32731da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32741da177e4SLinus Torvalds { 32758687b63aSAl Viro __be32 *p; 32761da177e4SLinus Torvalds 32771da177e4SLinus Torvalds *res = 0; 32781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32791da177e4SLinus Torvalds return -EIO; 32801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3281c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3282c0eae66eSBenny Halevy if (unlikely(!p)) 3283c0eae66eSBenny Halevy goto out_overflow; 3284cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32861da177e4SLinus Torvalds } 32873110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32881da177e4SLinus Torvalds return 0; 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_symlink_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_SYMLINK_SUPPORT - 1U))) 33001da177e4SLinus Torvalds return -EIO; 33011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_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_SYMLINK_SUPPORT; 33071da177e4SLinus Torvalds } 33083110ff80SHarvey Harrison dprintk("%s: symlink 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 33158b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 33161da177e4SLinus Torvalds { 33178687b63aSAl Viro __be32 *p; 3318409924e4STrond Myklebust int ret = 0; 33191da177e4SLinus Torvalds 33201da177e4SLinus Torvalds fsid->major = 0; 33211da177e4SLinus Torvalds fsid->minor = 0; 33221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 33231da177e4SLinus Torvalds return -EIO; 33241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3325c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3326c0eae66eSBenny Halevy if (unlikely(!p)) 3327c0eae66eSBenny Halevy goto out_overflow; 33283ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3329cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 33301da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3331409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 33321da177e4SLinus Torvalds } 33333110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 33341da177e4SLinus Torvalds (unsigned long long)fsid->major, 33351da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3336409924e4STrond Myklebust return ret; 3337c0eae66eSBenny Halevy out_overflow: 3338c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3339c0eae66eSBenny Halevy return -EIO; 33401da177e4SLinus Torvalds } 33411da177e4SLinus Torvalds 33421da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33431da177e4SLinus Torvalds { 33448687b63aSAl Viro __be32 *p; 33451da177e4SLinus Torvalds 33461da177e4SLinus Torvalds *res = 60; 33471da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33481da177e4SLinus Torvalds return -EIO; 33491da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3350c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3351c0eae66eSBenny Halevy if (unlikely(!p)) 3352c0eae66eSBenny Halevy goto out_overflow; 3353cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33541da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 33551da177e4SLinus Torvalds } 33563110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33571da177e4SLinus Torvalds return 0; 3358c0eae66eSBenny Halevy out_overflow: 3359c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3360c0eae66eSBenny Halevy return -EIO; 33611da177e4SLinus Torvalds } 33621da177e4SLinus Torvalds 3363ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3364ae42c70aSBryan Schumaker { 3365ae42c70aSBryan Schumaker __be32 *p; 3366ae42c70aSBryan Schumaker 3367ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3368ae42c70aSBryan Schumaker return -EIO; 3369ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3370ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3371ae42c70aSBryan Schumaker if (unlikely(!p)) 3372ae42c70aSBryan Schumaker goto out_overflow; 3373ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3374ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3375ae42c70aSBryan Schumaker } 3376ae42c70aSBryan Schumaker return 0; 3377ae42c70aSBryan Schumaker out_overflow: 3378ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3379ae42c70aSBryan Schumaker return -EIO; 3380ae42c70aSBryan Schumaker } 3381ae42c70aSBryan Schumaker 3382ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3383ae42c70aSBryan Schumaker { 3384ae42c70aSBryan Schumaker __be32 *p; 3385ae42c70aSBryan Schumaker int len; 3386ae42c70aSBryan Schumaker 33877ad07353STrond Myklebust if (fh != NULL) 3388ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3389ae42c70aSBryan Schumaker 3390ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3391ae42c70aSBryan Schumaker return -EIO; 3392ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3393ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3394ae42c70aSBryan Schumaker if (unlikely(!p)) 3395ae42c70aSBryan Schumaker goto out_overflow; 3396ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3397ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3398ae42c70aSBryan Schumaker return -EIO; 3399ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3400ae42c70aSBryan Schumaker if (unlikely(!p)) 3401ae42c70aSBryan Schumaker goto out_overflow; 34027ad07353STrond Myklebust if (fh != NULL) { 3403ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 34047ad07353STrond Myklebust fh->size = len; 34057ad07353STrond Myklebust } 3406ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3407ae42c70aSBryan Schumaker } 3408ae42c70aSBryan Schumaker return 0; 3409ae42c70aSBryan Schumaker out_overflow: 3410ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3411ae42c70aSBryan Schumaker return -EIO; 3412ae42c70aSBryan Schumaker } 3413ae42c70aSBryan Schumaker 34141da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34151da177e4SLinus Torvalds { 34168687b63aSAl Viro __be32 *p; 34171da177e4SLinus Torvalds 34181da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 34191da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 34201da177e4SLinus Torvalds return -EIO; 34211da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3422c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3423c0eae66eSBenny Halevy if (unlikely(!p)) 3424c0eae66eSBenny Halevy goto out_overflow; 3425cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 34271da177e4SLinus Torvalds } 34283110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 34291da177e4SLinus Torvalds return 0; 3430c0eae66eSBenny Halevy out_overflow: 3431c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3432c0eae66eSBenny Halevy return -EIO; 34331da177e4SLinus Torvalds } 34341da177e4SLinus Torvalds 34351da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 34361da177e4SLinus Torvalds { 34378687b63aSAl Viro __be32 *p; 3438409924e4STrond Myklebust int ret = 0; 34391da177e4SLinus Torvalds 34401da177e4SLinus Torvalds *fileid = 0; 34411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34421da177e4SLinus Torvalds return -EIO; 34431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3444c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3445c0eae66eSBenny Halevy if (unlikely(!p)) 3446c0eae66eSBenny Halevy goto out_overflow; 3447cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34481da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3449409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34501da177e4SLinus Torvalds } 34513110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3452409924e4STrond Myklebust return ret; 3453c0eae66eSBenny Halevy out_overflow: 3454c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3455c0eae66eSBenny Halevy return -EIO; 34561da177e4SLinus Torvalds } 34571da177e4SLinus Torvalds 345899baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 345999baf625SManoj Naik { 34608687b63aSAl Viro __be32 *p; 3461409924e4STrond Myklebust int ret = 0; 346299baf625SManoj Naik 346399baf625SManoj Naik *fileid = 0; 346499baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 346599baf625SManoj Naik return -EIO; 346699baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3467c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3468c0eae66eSBenny Halevy if (unlikely(!p)) 3469c0eae66eSBenny Halevy goto out_overflow; 3470cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 347199baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 347228331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 347399baf625SManoj Naik } 34743110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3475409924e4STrond Myklebust return ret; 3476c0eae66eSBenny Halevy out_overflow: 3477c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3478c0eae66eSBenny Halevy return -EIO; 347999baf625SManoj Naik } 348099baf625SManoj Naik 34811da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34821da177e4SLinus Torvalds { 34838687b63aSAl Viro __be32 *p; 34841da177e4SLinus Torvalds int status = 0; 34851da177e4SLinus Torvalds 34861da177e4SLinus Torvalds *res = 0; 34871da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34881da177e4SLinus Torvalds return -EIO; 34891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3490c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3491c0eae66eSBenny Halevy if (unlikely(!p)) 3492c0eae66eSBenny Halevy goto out_overflow; 3493cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34941da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34951da177e4SLinus Torvalds } 34963110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34971da177e4SLinus Torvalds return status; 3498c0eae66eSBenny Halevy out_overflow: 3499c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3500c0eae66eSBenny Halevy return -EIO; 35011da177e4SLinus Torvalds } 35021da177e4SLinus Torvalds 35031da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35041da177e4SLinus Torvalds { 35058687b63aSAl Viro __be32 *p; 35061da177e4SLinus Torvalds int status = 0; 35071da177e4SLinus Torvalds 35081da177e4SLinus Torvalds *res = 0; 35091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35101da177e4SLinus Torvalds return -EIO; 35111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3512c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3513c0eae66eSBenny Halevy if (unlikely(!p)) 3514c0eae66eSBenny Halevy goto out_overflow; 3515cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35171da177e4SLinus Torvalds } 35183110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35191da177e4SLinus Torvalds return status; 3520c0eae66eSBenny Halevy out_overflow: 3521c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3522c0eae66eSBenny Halevy return -EIO; 35231da177e4SLinus Torvalds } 35241da177e4SLinus Torvalds 35251da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35261da177e4SLinus Torvalds { 35278687b63aSAl Viro __be32 *p; 35281da177e4SLinus Torvalds int status = 0; 35291da177e4SLinus Torvalds 35301da177e4SLinus Torvalds *res = 0; 35311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 35321da177e4SLinus Torvalds return -EIO; 35331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3534c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3535c0eae66eSBenny Halevy if (unlikely(!p)) 3536c0eae66eSBenny Halevy goto out_overflow; 3537cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 35391da177e4SLinus Torvalds } 35403110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 35411da177e4SLinus Torvalds return status; 3542c0eae66eSBenny Halevy out_overflow: 3543c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3544c0eae66eSBenny Halevy return -EIO; 35451da177e4SLinus Torvalds } 35461da177e4SLinus Torvalds 35477aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35487aaa0b3bSManoj Naik { 3549464ad6b1SChuck Lever u32 n; 35508687b63aSAl Viro __be32 *p; 35517aaa0b3bSManoj Naik int status = 0; 35527aaa0b3bSManoj Naik 3553c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3554c0eae66eSBenny Halevy if (unlikely(!p)) 3555c0eae66eSBenny Halevy goto out_overflow; 3556cccddf4fSBenny Halevy n = be32_to_cpup(p); 355733a43f28SAndy Adamson if (n == 0) 355833a43f28SAndy Adamson goto root_path; 355902a2976cSChuck Lever dprintk("pathname4: "); 35607aaa0b3bSManoj Naik path->ncomponents = 0; 35617aaa0b3bSManoj Naik while (path->ncomponents < n) { 35627aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35637aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35647aaa0b3bSManoj Naik if (unlikely(status != 0)) 35657aaa0b3bSManoj Naik goto out_eio; 356602a2976cSChuck Lever if (unlikely(nfs_debug & NFSDBG_XDR)) 356702a2976cSChuck Lever pr_cont("%s%.*s ", 356802a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 356902a2976cSChuck Lever component->len, component->data); 35707aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 35717aaa0b3bSManoj Naik path->ncomponents++; 35727aaa0b3bSManoj Naik else { 35737aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 35747aaa0b3bSManoj Naik goto out_eio; 35757aaa0b3bSManoj Naik } 35767aaa0b3bSManoj Naik } 35777aaa0b3bSManoj Naik out: 35787aaa0b3bSManoj Naik return status; 357933a43f28SAndy Adamson root_path: 358033a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 358133a43f28SAndy Adamson path->ncomponents = 1; 358233a43f28SAndy Adamson path->components[0].len=0; 358333a43f28SAndy Adamson path->components[0].data=NULL; 358402a2976cSChuck Lever dprintk("pathname4: /\n"); 358533a43f28SAndy Adamson goto out; 35867aaa0b3bSManoj Naik out_eio: 35877aaa0b3bSManoj Naik dprintk(" status %d", status); 35887aaa0b3bSManoj Naik status = -EIO; 35897aaa0b3bSManoj Naik goto out; 3590c0eae66eSBenny Halevy out_overflow: 3591c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3592c0eae66eSBenny Halevy return -EIO; 35937aaa0b3bSManoj Naik } 35947aaa0b3bSManoj Naik 35957aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3596683b57b4STrond Myklebust { 3597683b57b4STrond Myklebust int n; 35988687b63aSAl Viro __be32 *p; 3599683b57b4STrond Myklebust int status = -EIO; 3600683b57b4STrond Myklebust 3601683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3602683b57b4STrond Myklebust goto out; 3603683b57b4STrond Myklebust status = 0; 3604683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3605683b57b4STrond Myklebust goto out; 36068b7e3f49STrond Myklebust status = -EIO; 36078b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36088b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36098b7e3f49STrond Myklebust goto out; 361002a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 36117aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3612683b57b4STrond Myklebust if (unlikely(status != 0)) 3613683b57b4STrond Myklebust goto out; 3614c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3615c0eae66eSBenny Halevy if (unlikely(!p)) 3616c0eae66eSBenny Halevy goto out_overflow; 3617cccddf4fSBenny Halevy n = be32_to_cpup(p); 3618683b57b4STrond Myklebust if (n <= 0) 3619683b57b4STrond Myklebust goto out_eio; 3620683b57b4STrond Myklebust res->nlocations = 0; 3621683b57b4STrond Myklebust while (res->nlocations < n) { 3622464ad6b1SChuck Lever u32 m; 36237aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3624683b57b4STrond Myklebust 3625c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3626c0eae66eSBenny Halevy if (unlikely(!p)) 3627c0eae66eSBenny Halevy goto out_overflow; 3628cccddf4fSBenny Halevy m = be32_to_cpup(p); 36297aaa0b3bSManoj Naik 36307aaa0b3bSManoj Naik loc->nservers = 0; 363102a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 36327aaa0b3bSManoj Naik while (loc->nservers < m) { 36337aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 36347aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3635683b57b4STrond Myklebust if (unlikely(status != 0)) 3636683b57b4STrond Myklebust goto out_eio; 36377aaa0b3bSManoj Naik dprintk("%s ", server->data); 36387aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 36397aaa0b3bSManoj Naik loc->nservers++; 36407aaa0b3bSManoj Naik else { 3641464ad6b1SChuck Lever unsigned int i; 3642464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3643464ad6b1SChuck Lever "returned for location %u\n", 36443110ff80SHarvey Harrison __func__, 3645464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3646464ad6b1SChuck Lever m, res->nlocations); 36477aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36482e42c3e2STrond Myklebust unsigned int len; 36497aaa0b3bSManoj Naik char *data; 36507aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3651683b57b4STrond Myklebust if (unlikely(status != 0)) 3652683b57b4STrond Myklebust goto out_eio; 36537aaa0b3bSManoj Naik } 36547aaa0b3bSManoj Naik } 36557aaa0b3bSManoj Naik } 36567aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36577aaa0b3bSManoj Naik if (unlikely(status != 0)) 36587aaa0b3bSManoj Naik goto out_eio; 36597aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3660683b57b4STrond Myklebust res->nlocations++; 3661683b57b4STrond Myklebust } 3662409924e4STrond Myklebust if (res->nlocations != 0) 3663409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3664683b57b4STrond Myklebust out: 36653110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3666683b57b4STrond Myklebust return status; 3667c0eae66eSBenny Halevy out_overflow: 3668c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3669683b57b4STrond Myklebust out_eio: 3670683b57b4STrond Myklebust status = -EIO; 3671683b57b4STrond Myklebust goto out; 3672683b57b4STrond Myklebust } 3673683b57b4STrond Myklebust 36741da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36751da177e4SLinus Torvalds { 36768687b63aSAl Viro __be32 *p; 36771da177e4SLinus Torvalds int status = 0; 36781da177e4SLinus Torvalds 36791da177e4SLinus Torvalds *res = 0; 36801da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36811da177e4SLinus Torvalds return -EIO; 36821da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3683c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3684c0eae66eSBenny Halevy if (unlikely(!p)) 3685c0eae66eSBenny Halevy goto out_overflow; 3686cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36871da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36881da177e4SLinus Torvalds } 36893110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36901da177e4SLinus Torvalds return status; 3691c0eae66eSBenny Halevy out_overflow: 3692c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3693c0eae66eSBenny Halevy return -EIO; 36941da177e4SLinus Torvalds } 36951da177e4SLinus Torvalds 36961da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36971da177e4SLinus Torvalds { 36988687b63aSAl Viro __be32 *p; 36991da177e4SLinus Torvalds int status = 0; 37001da177e4SLinus Torvalds 37011da177e4SLinus Torvalds *maxlink = 1; 37021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 37031da177e4SLinus Torvalds return -EIO; 37041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3705c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3706c0eae66eSBenny Halevy if (unlikely(!p)) 3707c0eae66eSBenny Halevy goto out_overflow; 3708cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37091da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37101da177e4SLinus Torvalds } 37113110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37121da177e4SLinus Torvalds return status; 3713c0eae66eSBenny Halevy out_overflow: 3714c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3715c0eae66eSBenny Halevy return -EIO; 37161da177e4SLinus Torvalds } 37171da177e4SLinus Torvalds 37181da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37191da177e4SLinus Torvalds { 37208687b63aSAl Viro __be32 *p; 37211da177e4SLinus Torvalds int status = 0; 37221da177e4SLinus Torvalds 37231da177e4SLinus Torvalds *maxname = 1024; 37241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37251da177e4SLinus Torvalds return -EIO; 37261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3727c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3728c0eae66eSBenny Halevy if (unlikely(!p)) 3729c0eae66eSBenny Halevy goto out_overflow; 3730cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37321da177e4SLinus Torvalds } 37333110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 37341da177e4SLinus Torvalds return status; 3735c0eae66eSBenny Halevy out_overflow: 3736c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3737c0eae66eSBenny Halevy return -EIO; 37381da177e4SLinus Torvalds } 37391da177e4SLinus Torvalds 37401da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37411da177e4SLinus Torvalds { 37428687b63aSAl Viro __be32 *p; 37431da177e4SLinus Torvalds int status = 0; 37441da177e4SLinus Torvalds 37451da177e4SLinus Torvalds *res = 1024; 37461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 37471da177e4SLinus Torvalds return -EIO; 37481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37491da177e4SLinus Torvalds uint64_t maxread; 3750c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3751c0eae66eSBenny Halevy if (unlikely(!p)) 3752c0eae66eSBenny Halevy goto out_overflow; 3753cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37541da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37551da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37561da177e4SLinus Torvalds *res = (uint32_t)maxread; 37571da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37581da177e4SLinus Torvalds } 37593110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37601da177e4SLinus Torvalds return status; 3761c0eae66eSBenny Halevy out_overflow: 3762c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3763c0eae66eSBenny Halevy return -EIO; 37641da177e4SLinus Torvalds } 37651da177e4SLinus Torvalds 37661da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37671da177e4SLinus Torvalds { 37688687b63aSAl Viro __be32 *p; 37691da177e4SLinus Torvalds int status = 0; 37701da177e4SLinus Torvalds 37711da177e4SLinus Torvalds *res = 1024; 37721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37731da177e4SLinus Torvalds return -EIO; 37741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37751da177e4SLinus Torvalds uint64_t maxwrite; 3776c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3777c0eae66eSBenny Halevy if (unlikely(!p)) 3778c0eae66eSBenny Halevy goto out_overflow; 3779cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37801da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37811da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37821da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37831da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37841da177e4SLinus Torvalds } 37853110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37861da177e4SLinus Torvalds return status; 3787c0eae66eSBenny Halevy out_overflow: 3788c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3789c0eae66eSBenny Halevy return -EIO; 37901da177e4SLinus Torvalds } 37911da177e4SLinus Torvalds 3792bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37931da177e4SLinus Torvalds { 3794bca79478STrond Myklebust uint32_t tmp; 37958687b63aSAl Viro __be32 *p; 3796409924e4STrond Myklebust int ret = 0; 37971da177e4SLinus Torvalds 37981da177e4SLinus Torvalds *mode = 0; 37991da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38001da177e4SLinus Torvalds return -EIO; 38011da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3802c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3803c0eae66eSBenny Halevy if (unlikely(!p)) 3804c0eae66eSBenny Halevy goto out_overflow; 3805cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3806bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38071da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3808409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38091da177e4SLinus Torvalds } 38103110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3811409924e4STrond Myklebust return ret; 3812c0eae66eSBenny Halevy out_overflow: 3813c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3814c0eae66eSBenny Halevy return -EIO; 38151da177e4SLinus Torvalds } 38161da177e4SLinus Torvalds 38171da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38181da177e4SLinus Torvalds { 38198687b63aSAl Viro __be32 *p; 3820409924e4STrond Myklebust int ret = 0; 38211da177e4SLinus Torvalds 38221da177e4SLinus Torvalds *nlink = 1; 38231da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38241da177e4SLinus Torvalds return -EIO; 38251da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3826c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3827c0eae66eSBenny Halevy if (unlikely(!p)) 3828c0eae66eSBenny Halevy goto out_overflow; 3829cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38301da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3831409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38321da177e4SLinus Torvalds } 38333110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3834409924e4STrond Myklebust return ret; 3835c0eae66eSBenny Halevy out_overflow: 3836c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3837c0eae66eSBenny Halevy return -EIO; 38381da177e4SLinus Torvalds } 38391da177e4SLinus Torvalds 384080e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 38416926afd1STrond Myklebust const struct nfs_server *server, uint32_t *uid, 38426926afd1STrond Myklebust struct nfs4_string *owner_name) 38431da177e4SLinus Torvalds { 38448687b63aSAl Viro uint32_t len; 38458687b63aSAl Viro __be32 *p; 3846409924e4STrond Myklebust int ret = 0; 38471da177e4SLinus Torvalds 38481da177e4SLinus Torvalds *uid = -2; 38491da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38501da177e4SLinus Torvalds return -EIO; 38511da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3852c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3853c0eae66eSBenny Halevy if (unlikely(!p)) 3854c0eae66eSBenny Halevy goto out_overflow; 3855cccddf4fSBenny Halevy len = be32_to_cpup(p); 3856c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3857c0eae66eSBenny Halevy if (unlikely(!p)) 3858c0eae66eSBenny Halevy goto out_overflow; 38596926afd1STrond Myklebust if (owner_name != NULL) { 38606926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38616926afd1STrond Myklebust if (owner_name->data != NULL) { 38626926afd1STrond Myklebust owner_name->len = len; 38636926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38646926afd1STrond Myklebust } 386580e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3866e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3867409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3868409924e4STrond Myklebust else 38691da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38703110ff80SHarvey Harrison __func__); 38711da177e4SLinus Torvalds } else 3872fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38733110ff80SHarvey Harrison __func__, len); 38741da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38751da177e4SLinus Torvalds } 38763110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3877409924e4STrond Myklebust return ret; 3878c0eae66eSBenny Halevy out_overflow: 3879c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3880c0eae66eSBenny Halevy return -EIO; 38811da177e4SLinus Torvalds } 38821da177e4SLinus Torvalds 388380e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 38846926afd1STrond Myklebust const struct nfs_server *server, uint32_t *gid, 38856926afd1STrond Myklebust struct nfs4_string *group_name) 38861da177e4SLinus Torvalds { 38878687b63aSAl Viro uint32_t len; 38888687b63aSAl Viro __be32 *p; 3889409924e4STrond Myklebust int ret = 0; 38901da177e4SLinus Torvalds 38911da177e4SLinus Torvalds *gid = -2; 38921da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38931da177e4SLinus Torvalds return -EIO; 38941da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3895c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3896c0eae66eSBenny Halevy if (unlikely(!p)) 3897c0eae66eSBenny Halevy goto out_overflow; 3898cccddf4fSBenny Halevy len = be32_to_cpup(p); 3899c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3900c0eae66eSBenny Halevy if (unlikely(!p)) 3901c0eae66eSBenny Halevy goto out_overflow; 39026926afd1STrond Myklebust if (group_name != NULL) { 39036926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 39046926afd1STrond Myklebust if (group_name->data != NULL) { 39056926afd1STrond Myklebust group_name->len = len; 39066926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 39076926afd1STrond Myklebust } 390880e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3909e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3910409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3911409924e4STrond Myklebust else 39121da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 39133110ff80SHarvey Harrison __func__); 39141da177e4SLinus Torvalds } else 3915fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39163110ff80SHarvey Harrison __func__, len); 39171da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 39181da177e4SLinus Torvalds } 39193110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3920409924e4STrond Myklebust return ret; 3921c0eae66eSBenny Halevy out_overflow: 3922c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3923c0eae66eSBenny Halevy return -EIO; 39241da177e4SLinus Torvalds } 39251da177e4SLinus Torvalds 39261da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39271da177e4SLinus Torvalds { 39288687b63aSAl Viro uint32_t major = 0, minor = 0; 39298687b63aSAl Viro __be32 *p; 3930409924e4STrond Myklebust int ret = 0; 39311da177e4SLinus Torvalds 39321da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39331da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39341da177e4SLinus Torvalds return -EIO; 39351da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39361da177e4SLinus Torvalds dev_t tmp; 39371da177e4SLinus Torvalds 3938c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3939c0eae66eSBenny Halevy if (unlikely(!p)) 3940c0eae66eSBenny Halevy goto out_overflow; 39416f723f77SBenny Halevy major = be32_to_cpup(p++); 3942cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39431da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39441da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39451da177e4SLinus Torvalds *rdev = tmp; 39461da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3947409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39481da177e4SLinus Torvalds } 39493110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3950409924e4STrond Myklebust return ret; 3951c0eae66eSBenny Halevy out_overflow: 3952c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3953c0eae66eSBenny Halevy return -EIO; 39541da177e4SLinus Torvalds } 39551da177e4SLinus Torvalds 39561da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39571da177e4SLinus Torvalds { 39588687b63aSAl Viro __be32 *p; 39591da177e4SLinus Torvalds int status = 0; 39601da177e4SLinus Torvalds 39611da177e4SLinus Torvalds *res = 0; 39621da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39631da177e4SLinus Torvalds return -EIO; 39641da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3965c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3966c0eae66eSBenny Halevy if (unlikely(!p)) 3967c0eae66eSBenny Halevy goto out_overflow; 3968cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39691da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39701da177e4SLinus Torvalds } 39713110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39721da177e4SLinus Torvalds return status; 3973c0eae66eSBenny Halevy out_overflow: 3974c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3975c0eae66eSBenny Halevy return -EIO; 39761da177e4SLinus Torvalds } 39771da177e4SLinus Torvalds 39781da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39791da177e4SLinus Torvalds { 39808687b63aSAl Viro __be32 *p; 39811da177e4SLinus Torvalds int status = 0; 39821da177e4SLinus Torvalds 39831da177e4SLinus Torvalds *res = 0; 39841da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39851da177e4SLinus Torvalds return -EIO; 39861da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3987c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3988c0eae66eSBenny Halevy if (unlikely(!p)) 3989c0eae66eSBenny Halevy goto out_overflow; 3990cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39911da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39921da177e4SLinus Torvalds } 39933110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39941da177e4SLinus Torvalds return status; 3995c0eae66eSBenny Halevy out_overflow: 3996c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3997c0eae66eSBenny Halevy return -EIO; 39981da177e4SLinus Torvalds } 39991da177e4SLinus Torvalds 40001da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40011da177e4SLinus Torvalds { 40028687b63aSAl Viro __be32 *p; 40031da177e4SLinus Torvalds int status = 0; 40041da177e4SLinus Torvalds 40051da177e4SLinus Torvalds *res = 0; 40061da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40071da177e4SLinus Torvalds return -EIO; 40081da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4009c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4010c0eae66eSBenny Halevy if (unlikely(!p)) 4011c0eae66eSBenny Halevy goto out_overflow; 4012cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40131da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40141da177e4SLinus Torvalds } 40153110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40161da177e4SLinus Torvalds return status; 4017c0eae66eSBenny Halevy out_overflow: 4018c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4019c0eae66eSBenny Halevy return -EIO; 40201da177e4SLinus Torvalds } 40211da177e4SLinus Torvalds 40221da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40231da177e4SLinus Torvalds { 40248687b63aSAl Viro __be32 *p; 4025409924e4STrond Myklebust int ret = 0; 40261da177e4SLinus Torvalds 40271da177e4SLinus Torvalds *used = 0; 40281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40291da177e4SLinus Torvalds return -EIO; 40301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4031c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4032c0eae66eSBenny Halevy if (unlikely(!p)) 4033c0eae66eSBenny Halevy goto out_overflow; 4034cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40351da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4036409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40371da177e4SLinus Torvalds } 40383110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40391da177e4SLinus Torvalds (unsigned long long)*used); 4040409924e4STrond Myklebust return ret; 4041c0eae66eSBenny Halevy out_overflow: 4042c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4043c0eae66eSBenny Halevy return -EIO; 40441da177e4SLinus Torvalds } 40451da177e4SLinus Torvalds 40461da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40471da177e4SLinus Torvalds { 40488687b63aSAl Viro __be32 *p; 40491da177e4SLinus Torvalds uint64_t sec; 40501da177e4SLinus Torvalds uint32_t nsec; 40511da177e4SLinus Torvalds 4052c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4053c0eae66eSBenny Halevy if (unlikely(!p)) 4054c0eae66eSBenny Halevy goto out_overflow; 40553ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4056cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40571da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40581da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40591da177e4SLinus Torvalds return 0; 4060c0eae66eSBenny Halevy out_overflow: 4061c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4062c0eae66eSBenny Halevy return -EIO; 40631da177e4SLinus Torvalds } 40641da177e4SLinus Torvalds 40651da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40661da177e4SLinus Torvalds { 40671da177e4SLinus Torvalds int status = 0; 40681da177e4SLinus Torvalds 40691da177e4SLinus Torvalds time->tv_sec = 0; 40701da177e4SLinus Torvalds time->tv_nsec = 0; 40711da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40721da177e4SLinus Torvalds return -EIO; 40731da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40741da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4075409924e4STrond Myklebust if (status == 0) 4076409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40771da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40781da177e4SLinus Torvalds } 40793110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40801da177e4SLinus Torvalds return status; 40811da177e4SLinus Torvalds } 40821da177e4SLinus Torvalds 40831da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40841da177e4SLinus Torvalds { 40851da177e4SLinus Torvalds int status = 0; 40861da177e4SLinus Torvalds 40871da177e4SLinus Torvalds time->tv_sec = 0; 40881da177e4SLinus Torvalds time->tv_nsec = 0; 40891da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40901da177e4SLinus Torvalds return -EIO; 40911da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40921da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4093409924e4STrond Myklebust if (status == 0) 4094409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40951da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40961da177e4SLinus Torvalds } 40973110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40981da177e4SLinus Torvalds return status; 40991da177e4SLinus Torvalds } 41001da177e4SLinus Torvalds 410155b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 410255b6e774SRicardo Labiaga struct timespec *time) 410355b6e774SRicardo Labiaga { 410455b6e774SRicardo Labiaga int status = 0; 410555b6e774SRicardo Labiaga 410655b6e774SRicardo Labiaga time->tv_sec = 0; 410755b6e774SRicardo Labiaga time->tv_nsec = 0; 410855b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 410955b6e774SRicardo Labiaga return -EIO; 411055b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 411155b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 411255b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 411355b6e774SRicardo Labiaga } 411455b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 411555b6e774SRicardo Labiaga (long)time->tv_nsec); 411655b6e774SRicardo Labiaga return status; 411755b6e774SRicardo Labiaga } 411855b6e774SRicardo Labiaga 41191da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41201da177e4SLinus Torvalds { 41211da177e4SLinus Torvalds int status = 0; 41221da177e4SLinus Torvalds 41231da177e4SLinus Torvalds time->tv_sec = 0; 41241da177e4SLinus Torvalds time->tv_nsec = 0; 41251da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 41261da177e4SLinus Torvalds return -EIO; 41271da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 41281da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4129409924e4STrond Myklebust if (status == 0) 4130409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 41311da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 41321da177e4SLinus Torvalds } 41333110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 41341da177e4SLinus Torvalds return status; 41351da177e4SLinus Torvalds } 41361da177e4SLinus Torvalds 41378687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 41381da177e4SLinus Torvalds { 41391da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 41401da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 41411da177e4SLinus Torvalds 41421da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4143fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4144fe82a183SChuck Lever "%u %c %u\n", 41453110ff80SHarvey Harrison __func__, 41461da177e4SLinus Torvalds attrwords << 2, 41471da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 41481da177e4SLinus Torvalds nwords << 2); 41491da177e4SLinus Torvalds return -EIO; 41501da177e4SLinus Torvalds } 41511da177e4SLinus Torvalds return 0; 41521da177e4SLinus Torvalds } 41531da177e4SLinus Torvalds 41541da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41551da177e4SLinus Torvalds { 41568687b63aSAl Viro __be32 *p; 41571da177e4SLinus Torvalds 4158c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4159c0eae66eSBenny Halevy if (unlikely(!p)) 4160c0eae66eSBenny Halevy goto out_overflow; 41616f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 41623ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4163cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 41641da177e4SLinus Torvalds return 0; 4165c0eae66eSBenny Halevy out_overflow: 4166c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4167c0eae66eSBenny Halevy return -EIO; 41681da177e4SLinus Torvalds } 41691da177e4SLinus Torvalds 41701da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 41711da177e4SLinus Torvalds { 41728687b63aSAl Viro __be32 *p; 41731da177e4SLinus Torvalds uint32_t supp, acc; 41741da177e4SLinus Torvalds int status; 41751da177e4SLinus Torvalds 41761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41771da177e4SLinus Torvalds if (status) 41781da177e4SLinus Torvalds return status; 4179c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4180c0eae66eSBenny Halevy if (unlikely(!p)) 4181c0eae66eSBenny Halevy goto out_overflow; 41826f723f77SBenny Halevy supp = be32_to_cpup(p++); 4183cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41841da177e4SLinus Torvalds access->supported = supp; 41851da177e4SLinus Torvalds access->access = acc; 41861da177e4SLinus Torvalds return 0; 4187c0eae66eSBenny Halevy out_overflow: 4188c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4189c0eae66eSBenny Halevy return -EIO; 41901da177e4SLinus Torvalds } 41911da177e4SLinus Torvalds 419207d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41931da177e4SLinus Torvalds { 41948687b63aSAl Viro __be32 *p; 419507d30434SBenny Halevy 419607d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 419707d30434SBenny Halevy if (likely(p)) { 419807d30434SBenny Halevy memcpy(buf, p, len); 419907d30434SBenny Halevy return 0; 420007d30434SBenny Halevy } 420107d30434SBenny Halevy print_overflow_msg(__func__, xdr); 420207d30434SBenny Halevy return -EIO; 420307d30434SBenny Halevy } 420407d30434SBenny Halevy 420507d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 420607d30434SBenny Halevy { 420707d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 42081da177e4SLinus Torvalds } 42091da177e4SLinus Torvalds 42101da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 42111da177e4SLinus Torvalds { 42121da177e4SLinus Torvalds int status; 42131da177e4SLinus Torvalds 42141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4215c1d51931STrond Myklebust if (status != -EIO) 4216c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 421707d30434SBenny Halevy if (!status) 421807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42191da177e4SLinus Torvalds return status; 42201da177e4SLinus Torvalds } 42211da177e4SLinus Torvalds 4222db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4223db942bbdSBenny Halevy { 4224db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 42251da177e4SLinus Torvalds } 42261da177e4SLinus Torvalds 42271da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 42281da177e4SLinus Torvalds { 42291da177e4SLinus Torvalds int status; 42301da177e4SLinus Torvalds 42311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4232db942bbdSBenny Halevy if (!status) 4233db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 42341da177e4SLinus Torvalds return status; 42351da177e4SLinus Torvalds } 42361da177e4SLinus Torvalds 42371da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42381da177e4SLinus Torvalds { 42398687b63aSAl Viro __be32 *p; 42401da177e4SLinus Torvalds uint32_t bmlen; 42411da177e4SLinus Torvalds int status; 42421da177e4SLinus Torvalds 42431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 42441da177e4SLinus Torvalds if (status) 42451da177e4SLinus Torvalds return status; 42461da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 42471da177e4SLinus Torvalds return status; 4248c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4249c0eae66eSBenny Halevy if (unlikely(!p)) 4250c0eae66eSBenny Halevy goto out_overflow; 4251cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4252c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4253c0eae66eSBenny Halevy if (likely(p)) 42541da177e4SLinus Torvalds return 0; 4255c0eae66eSBenny Halevy out_overflow: 4256c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4257c0eae66eSBenny Halevy return -EIO; 42581da177e4SLinus Torvalds } 42591da177e4SLinus Torvalds 42601da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 42611da177e4SLinus Torvalds { 42628687b63aSAl Viro __be32 *savep; 4263dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42641da177e4SLinus Torvalds int status; 42651da177e4SLinus Torvalds 42661da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42671da177e4SLinus Torvalds goto xdr_error; 42681da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42691da177e4SLinus Torvalds goto xdr_error; 42701da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42711da177e4SLinus Torvalds goto xdr_error; 42721da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42731da177e4SLinus Torvalds goto xdr_error; 42741da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42751da177e4SLinus Torvalds goto xdr_error; 42761da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42771da177e4SLinus Torvalds goto xdr_error; 42781da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42791da177e4SLinus Torvalds goto xdr_error; 42801da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42811da177e4SLinus Torvalds xdr_error: 42823110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42831da177e4SLinus Torvalds return status; 42841da177e4SLinus Torvalds } 42851da177e4SLinus Torvalds 42861da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42871da177e4SLinus Torvalds { 42888687b63aSAl Viro __be32 *savep; 4289dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42901da177e4SLinus Torvalds int status; 42911da177e4SLinus Torvalds 42921da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42931da177e4SLinus Torvalds goto xdr_error; 42941da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42951da177e4SLinus Torvalds goto xdr_error; 42961da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42971da177e4SLinus Torvalds goto xdr_error; 42981da177e4SLinus Torvalds 42991da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 43001da177e4SLinus Torvalds goto xdr_error; 43011da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 43021da177e4SLinus Torvalds goto xdr_error; 43031da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 43041da177e4SLinus Torvalds goto xdr_error; 43051da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 43061da177e4SLinus Torvalds goto xdr_error; 43071da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 43081da177e4SLinus Torvalds goto xdr_error; 43091da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 43101da177e4SLinus Torvalds goto xdr_error; 43111da177e4SLinus Torvalds 43121da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43131da177e4SLinus Torvalds xdr_error: 43143110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43151da177e4SLinus Torvalds return status; 43161da177e4SLinus Torvalds } 43171da177e4SLinus Torvalds 43181da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 43191da177e4SLinus Torvalds { 43208687b63aSAl Viro __be32 *savep; 4321dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43221da177e4SLinus Torvalds int status; 43231da177e4SLinus Torvalds 43241da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43251da177e4SLinus Torvalds goto xdr_error; 43261da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43271da177e4SLinus Torvalds goto xdr_error; 43281da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43291da177e4SLinus Torvalds goto xdr_error; 43301da177e4SLinus Torvalds 43311da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 43321da177e4SLinus Torvalds goto xdr_error; 43331da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 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 4342ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4343ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 43448b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 43456926afd1STrond Myklebust const struct nfs_server *server) 43461da177e4SLinus Torvalds { 4347bca79478STrond Myklebust int status; 4348bca79478STrond Myklebust umode_t fmode = 0; 4349ae42c70aSBryan Schumaker uint32_t type; 4350ee7b75fcSTrond Myklebust int32_t err; 43511da177e4SLinus Torvalds 4352f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4353f26c7a78STrond Myklebust if (status < 0) 43541da177e4SLinus Torvalds goto xdr_error; 4355409924e4STrond Myklebust fattr->mode = 0; 4356409924e4STrond Myklebust if (status != 0) { 4357409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4358409924e4STrond Myklebust fattr->valid |= status; 4359409924e4STrond Myklebust } 43601da177e4SLinus Torvalds 4361f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4362f26c7a78STrond Myklebust if (status < 0) 43631da177e4SLinus Torvalds goto xdr_error; 4364409924e4STrond Myklebust fattr->valid |= status; 4365f26c7a78STrond Myklebust 4366f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4367f26c7a78STrond Myklebust if (status < 0) 43681da177e4SLinus Torvalds goto xdr_error; 4369409924e4STrond Myklebust fattr->valid |= status; 4370f26c7a78STrond Myklebust 4371f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4372f26c7a78STrond Myklebust if (status < 0) 43731da177e4SLinus Torvalds goto xdr_error; 4374409924e4STrond Myklebust fattr->valid |= status; 4375f26c7a78STrond Myklebust 4376ee7b75fcSTrond Myklebust err = 0; 4377ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4378ae42c70aSBryan Schumaker if (status < 0) 4379ae42c70aSBryan Schumaker goto xdr_error; 4380ee7b75fcSTrond Myklebust if (err == -NFS4ERR_WRONGSEC) 4381ee7b75fcSTrond Myklebust nfs_fixup_secinfo_attributes(fattr, fh); 4382ae42c70aSBryan Schumaker 4383ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4384ae42c70aSBryan Schumaker if (status < 0) 4385ae42c70aSBryan Schumaker goto xdr_error; 4386ae42c70aSBryan Schumaker 4387f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4388f26c7a78STrond Myklebust if (status < 0) 43891da177e4SLinus Torvalds goto xdr_error; 4390409924e4STrond Myklebust fattr->valid |= status; 4391f26c7a78STrond Myklebust 43928b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4393f26c7a78STrond Myklebust if (status < 0) 4394683b57b4STrond Myklebust goto xdr_error; 4395409924e4STrond Myklebust fattr->valid |= status; 4396f26c7a78STrond Myklebust 4397f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4398f26c7a78STrond Myklebust if (status < 0) 43991da177e4SLinus Torvalds goto xdr_error; 4400409924e4STrond Myklebust if (status != 0) { 44011da177e4SLinus Torvalds fattr->mode |= fmode; 4402409924e4STrond Myklebust fattr->valid |= status; 4403409924e4STrond Myklebust } 4404f26c7a78STrond Myklebust 4405f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4406f26c7a78STrond Myklebust if (status < 0) 44071da177e4SLinus Torvalds goto xdr_error; 4408409924e4STrond Myklebust fattr->valid |= status; 4409f26c7a78STrond Myklebust 44106926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4411f26c7a78STrond Myklebust if (status < 0) 44121da177e4SLinus Torvalds goto xdr_error; 4413409924e4STrond Myklebust fattr->valid |= status; 4414f26c7a78STrond Myklebust 44156926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4416f26c7a78STrond Myklebust if (status < 0) 44171da177e4SLinus Torvalds goto xdr_error; 4418409924e4STrond Myklebust fattr->valid |= status; 4419f26c7a78STrond Myklebust 4420f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4421f26c7a78STrond Myklebust if (status < 0) 44221da177e4SLinus Torvalds goto xdr_error; 4423409924e4STrond Myklebust fattr->valid |= status; 4424f26c7a78STrond Myklebust 4425f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4426f26c7a78STrond Myklebust if (status < 0) 44271da177e4SLinus Torvalds goto xdr_error; 4428409924e4STrond Myklebust fattr->valid |= status; 4429f26c7a78STrond Myklebust 4430f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4431f26c7a78STrond Myklebust if (status < 0) 44321da177e4SLinus Torvalds goto xdr_error; 4433409924e4STrond Myklebust fattr->valid |= status; 4434f26c7a78STrond Myklebust 4435f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4436f26c7a78STrond Myklebust if (status < 0) 44371da177e4SLinus Torvalds goto xdr_error; 4438409924e4STrond Myklebust fattr->valid |= status; 4439f26c7a78STrond Myklebust 4440f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4441f26c7a78STrond Myklebust if (status < 0) 44421da177e4SLinus Torvalds goto xdr_error; 4443409924e4STrond Myklebust fattr->valid |= status; 4444f26c7a78STrond Myklebust 444528331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4446f26c7a78STrond Myklebust if (status < 0) 444799baf625SManoj Naik goto xdr_error; 4448409924e4STrond Myklebust fattr->valid |= status; 4449f26c7a78STrond Myklebust 4450ae42c70aSBryan Schumaker xdr_error: 4451ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4452ae42c70aSBryan Schumaker return status; 4453ae42c70aSBryan Schumaker } 4454ae42c70aSBryan Schumaker 4455ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 44568b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 44578b7e3f49STrond Myklebust const struct nfs_server *server) 4458ae42c70aSBryan Schumaker { 4459ae42c70aSBryan Schumaker __be32 *savep; 4460ae42c70aSBryan Schumaker uint32_t attrlen, 4461dae100c2SFred Isaman bitmap[3] = {0}; 4462ae42c70aSBryan Schumaker int status; 4463ae42c70aSBryan Schumaker 4464ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4465ae42c70aSBryan Schumaker if (status < 0) 4466ae42c70aSBryan Schumaker goto xdr_error; 4467ae42c70aSBryan Schumaker 4468ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4469ae42c70aSBryan Schumaker if (status < 0) 4470ae42c70aSBryan Schumaker goto xdr_error; 4471ae42c70aSBryan Schumaker 4472ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4473ae42c70aSBryan Schumaker if (status < 0) 4474ae42c70aSBryan Schumaker goto xdr_error; 4475ae42c70aSBryan Schumaker 44768b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4477ae42c70aSBryan Schumaker if (status < 0) 4478ae42c70aSBryan Schumaker goto xdr_error; 4479ae42c70aSBryan Schumaker 4480f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 44811da177e4SLinus Torvalds xdr_error: 44823110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 44831da177e4SLinus Torvalds return status; 44841da177e4SLinus Torvalds } 44851da177e4SLinus Torvalds 4486ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 44876926afd1STrond Myklebust const struct nfs_server *server) 4488ae42c70aSBryan Schumaker { 44898b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4490ae42c70aSBryan Schumaker } 44911da177e4SLinus Torvalds 4492504913fbSAndy Adamson /* 4493504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4494504913fbSAndy Adamson * one layout driver per file system. 4495504913fbSAndy Adamson */ 4496504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4497504913fbSAndy Adamson uint32_t *layouttype) 4498504913fbSAndy Adamson { 4499504913fbSAndy Adamson uint32_t *p; 4500504913fbSAndy Adamson int num; 4501504913fbSAndy Adamson 4502504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4503504913fbSAndy Adamson if (unlikely(!p)) 4504504913fbSAndy Adamson goto out_overflow; 4505504913fbSAndy Adamson num = be32_to_cpup(p); 4506504913fbSAndy Adamson 4507504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4508504913fbSAndy Adamson if (num == 0) { 4509504913fbSAndy Adamson *layouttype = 0; 4510504913fbSAndy Adamson return 0; 4511504913fbSAndy Adamson } 4512504913fbSAndy Adamson if (num > 1) 4513a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4514a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4515504913fbSAndy Adamson 4516504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4517504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4518504913fbSAndy Adamson if (unlikely(!p)) 4519504913fbSAndy Adamson goto out_overflow; 4520504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4521504913fbSAndy Adamson return 0; 4522504913fbSAndy Adamson out_overflow: 4523504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4524504913fbSAndy Adamson return -EIO; 4525504913fbSAndy Adamson } 4526504913fbSAndy Adamson 4527504913fbSAndy Adamson /* 4528504913fbSAndy Adamson * The type of file system exported. 4529504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4530504913fbSAndy Adamson */ 4531504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4532504913fbSAndy Adamson uint32_t *layouttype) 4533504913fbSAndy Adamson { 4534504913fbSAndy Adamson int status = 0; 4535504913fbSAndy Adamson 4536504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4537504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4538504913fbSAndy Adamson return -EIO; 4539504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4540504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4541504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4542504913fbSAndy Adamson } else 4543504913fbSAndy Adamson *layouttype = 0; 4544504913fbSAndy Adamson return status; 4545504913fbSAndy Adamson } 4546504913fbSAndy Adamson 4547dae100c2SFred Isaman /* 4548dae100c2SFred Isaman * The prefered block size for layout directed io 4549dae100c2SFred Isaman */ 4550dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4551dae100c2SFred Isaman uint32_t *res) 4552dae100c2SFred Isaman { 4553dae100c2SFred Isaman __be32 *p; 4554dae100c2SFred Isaman 4555dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4556dae100c2SFred Isaman *res = 0; 4557dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4558dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4559dae100c2SFred Isaman if (unlikely(!p)) { 4560dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4561dae100c2SFred Isaman return -EIO; 4562dae100c2SFred Isaman } 4563dae100c2SFred Isaman *res = be32_to_cpup(p); 4564dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4565dae100c2SFred Isaman } 4566dae100c2SFred Isaman return 0; 4567dae100c2SFred Isaman } 4568dae100c2SFred Isaman 45691da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 45701da177e4SLinus Torvalds { 45718687b63aSAl Viro __be32 *savep; 4572dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 45731da177e4SLinus Torvalds int status; 45741da177e4SLinus Torvalds 45751da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 45761da177e4SLinus Torvalds goto xdr_error; 45771da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 45781da177e4SLinus Torvalds goto xdr_error; 45791da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 45801da177e4SLinus Torvalds goto xdr_error; 45811da177e4SLinus Torvalds 45821da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 45831da177e4SLinus Torvalds 45841da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 45851da177e4SLinus Torvalds goto xdr_error; 45861da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 45871da177e4SLinus Torvalds goto xdr_error; 45881da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 45891da177e4SLinus Torvalds goto xdr_error; 45901da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 45911da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 45921da177e4SLinus Torvalds goto xdr_error; 45931da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 459455b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 459555b6e774SRicardo Labiaga if (status != 0) 459655b6e774SRicardo Labiaga goto xdr_error; 4597504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4598504913fbSAndy Adamson if (status != 0) 4599504913fbSAndy Adamson goto xdr_error; 4600dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4601dae100c2SFred Isaman if (status) 4602dae100c2SFred Isaman goto xdr_error; 46031da177e4SLinus Torvalds 46041da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46051da177e4SLinus Torvalds xdr_error: 46063110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46071da177e4SLinus Torvalds return status; 46081da177e4SLinus Torvalds } 46091da177e4SLinus Torvalds 46101da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46111da177e4SLinus Torvalds { 46128687b63aSAl Viro __be32 *p; 46131da177e4SLinus Torvalds uint32_t len; 46141da177e4SLinus Torvalds int status; 46151da177e4SLinus Torvalds 46169936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46179936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46189936781dSTrond Myklebust 46191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46201da177e4SLinus Torvalds if (status) 46211da177e4SLinus Torvalds return status; 46221da177e4SLinus Torvalds 4623c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4624c0eae66eSBenny Halevy if (unlikely(!p)) 4625c0eae66eSBenny Halevy goto out_overflow; 4626cccddf4fSBenny Halevy len = be32_to_cpup(p); 46271da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46281da177e4SLinus Torvalds return -EIO; 46291da177e4SLinus Torvalds fh->size = len; 4630c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4631c0eae66eSBenny Halevy if (unlikely(!p)) 4632c0eae66eSBenny Halevy goto out_overflow; 463399398d06SBenny Halevy memcpy(fh->data, p, len); 46341da177e4SLinus Torvalds return 0; 4635c0eae66eSBenny Halevy out_overflow: 4636c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4637c0eae66eSBenny Halevy return -EIO; 46381da177e4SLinus Torvalds } 46391da177e4SLinus Torvalds 46401da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 46411da177e4SLinus Torvalds { 46421da177e4SLinus Torvalds int status; 46431da177e4SLinus Torvalds 46441da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 46451da177e4SLinus Torvalds if (status) 46461da177e4SLinus Torvalds return status; 46471da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 46481da177e4SLinus Torvalds } 46491da177e4SLinus Torvalds 46501da177e4SLinus Torvalds /* 46511da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 46521da177e4SLinus Torvalds */ 4653911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 46541da177e4SLinus Torvalds { 4655911d1aafSTrond Myklebust uint64_t offset, length, clientid; 46568687b63aSAl Viro __be32 *p; 4657911d1aafSTrond Myklebust uint32_t namelen, type; 46581da177e4SLinus Torvalds 4659babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4660c0eae66eSBenny Halevy if (unlikely(!p)) 4661c0eae66eSBenny Halevy goto out_overflow; 4662babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 46633ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4664babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4665babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4666911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4667911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4668911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4669911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4670911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4671911d1aafSTrond Myklebust if (type & 1) 4672911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4673911d1aafSTrond Myklebust fl->fl_pid = 0; 4674911d1aafSTrond Myklebust } 4675babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4676babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4677babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4678c0eae66eSBenny Halevy if (likely(p)) 46791da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4680c0eae66eSBenny Halevy out_overflow: 4681c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4682c0eae66eSBenny Halevy return -EIO; 46831da177e4SLinus Torvalds } 46841da177e4SLinus Torvalds 4685911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 46861da177e4SLinus Torvalds { 46871da177e4SLinus Torvalds int status; 46881da177e4SLinus Torvalds 46891da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4690c1d51931STrond Myklebust if (status == -EIO) 4691c1d51931STrond Myklebust goto out; 46921da177e4SLinus Torvalds if (status == 0) { 469307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 469407d30434SBenny Halevy if (unlikely(status)) 469507d30434SBenny Halevy goto out; 46961da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4697c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4698c1d51931STrond Myklebust if (res->open_seqid != NULL) 4699c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4700c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4701c1d51931STrond Myklebust out: 47021da177e4SLinus Torvalds return status; 47031da177e4SLinus Torvalds } 47041da177e4SLinus Torvalds 4705911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47061da177e4SLinus Torvalds { 47071da177e4SLinus Torvalds int status; 47081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47091da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4710911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47111da177e4SLinus Torvalds return status; 47121da177e4SLinus Torvalds } 47131da177e4SLinus Torvalds 4714911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47151da177e4SLinus Torvalds { 47161da177e4SLinus Torvalds int status; 47171da177e4SLinus Torvalds 47181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4719c1d51931STrond Myklebust if (status != -EIO) 4720c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 472107d30434SBenny Halevy if (status == 0) 472207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47231da177e4SLinus Torvalds return status; 47241da177e4SLinus Torvalds } 47251da177e4SLinus Torvalds 4726d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4727d3c7b7ccSTrond Myklebust { 4728d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4729d3c7b7ccSTrond Myklebust } 4730d3c7b7ccSTrond Myklebust 47311da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47321da177e4SLinus Torvalds { 47331da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47341da177e4SLinus Torvalds } 47351da177e4SLinus Torvalds 47361da177e4SLinus Torvalds /* This is too sick! */ 47371da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47381da177e4SLinus Torvalds { 47398687b63aSAl Viro __be32 *p; 47401da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 47411da177e4SLinus Torvalds 4742c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4743c0eae66eSBenny Halevy if (unlikely(!p)) 4744c0eae66eSBenny Halevy goto out_overflow; 47456f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 47461da177e4SLinus Torvalds switch (limit_type) { 47471da177e4SLinus Torvalds case 1: 4748cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 47491da177e4SLinus Torvalds break; 47501da177e4SLinus Torvalds case 2: 47516f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4752cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 47531da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 47541da177e4SLinus Torvalds } 47551da177e4SLinus Torvalds return 0; 4756c0eae66eSBenny Halevy out_overflow: 4757c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4758c0eae66eSBenny Halevy return -EIO; 47591da177e4SLinus Torvalds } 47601da177e4SLinus Torvalds 47611da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 47621da177e4SLinus Torvalds { 47638687b63aSAl Viro __be32 *p; 47641da177e4SLinus Torvalds uint32_t delegation_type; 476507d30434SBenny Halevy int status; 47661da177e4SLinus Torvalds 4767c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4768c0eae66eSBenny Halevy if (unlikely(!p)) 4769c0eae66eSBenny Halevy goto out_overflow; 4770cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 47711da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 47721da177e4SLinus Torvalds res->delegation_type = 0; 47731da177e4SLinus Torvalds return 0; 47741da177e4SLinus Torvalds } 477507d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 477607d30434SBenny Halevy if (unlikely(status)) 477707d30434SBenny Halevy return status; 4778c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4779c0eae66eSBenny Halevy if (unlikely(!p)) 4780c0eae66eSBenny Halevy goto out_overflow; 4781cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 478205d564feSAndy Adamson 47831da177e4SLinus Torvalds switch (delegation_type) { 47841da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 47851da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 47861da177e4SLinus Torvalds break; 47871da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 47881da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 47891da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 47901da177e4SLinus Torvalds return -EIO; 47911da177e4SLinus Torvalds } 47927539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4793c0eae66eSBenny Halevy out_overflow: 4794c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4795c0eae66eSBenny Halevy return -EIO; 47961da177e4SLinus Torvalds } 47971da177e4SLinus Torvalds 47981da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 47991da177e4SLinus Torvalds { 48008687b63aSAl Viro __be32 *p; 4801aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 48021da177e4SLinus Torvalds int status; 48031da177e4SLinus Torvalds 48041da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4805c1d51931STrond Myklebust if (status != -EIO) 4806c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 480707d30434SBenny Halevy if (!status) 480807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 480907d30434SBenny Halevy if (unlikely(status)) 48101da177e4SLinus Torvalds return status; 48111da177e4SLinus Torvalds 48121da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48131da177e4SLinus Torvalds 4814c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4815c0eae66eSBenny Halevy if (unlikely(!p)) 4816c0eae66eSBenny Halevy goto out_overflow; 48176f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4818cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48191da177e4SLinus Torvalds if (bmlen > 10) 48201da177e4SLinus Torvalds goto xdr_error; 48211da177e4SLinus Torvalds 4822c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4823c0eae66eSBenny Halevy if (unlikely(!p)) 4824c0eae66eSBenny Halevy goto out_overflow; 4825aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4826aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48276f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4828aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4829aa53ed54SJeff Layton res->attrset[i] = 0; 4830aa53ed54SJeff Layton 48311da177e4SLinus Torvalds return decode_delegation(xdr, res); 48321da177e4SLinus Torvalds xdr_error: 48333110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48341da177e4SLinus Torvalds return -EIO; 4835c0eae66eSBenny Halevy out_overflow: 4836c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4837c0eae66eSBenny Halevy return -EIO; 48381da177e4SLinus Torvalds } 48391da177e4SLinus Torvalds 48401da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 48411da177e4SLinus Torvalds { 48421da177e4SLinus Torvalds int status; 48431da177e4SLinus Torvalds 48441da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4845c1d51931STrond Myklebust if (status != -EIO) 4846c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 484707d30434SBenny Halevy if (!status) 484807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48491da177e4SLinus Torvalds return status; 48501da177e4SLinus Torvalds } 48511da177e4SLinus Torvalds 48521da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 48531da177e4SLinus Torvalds { 48541da177e4SLinus Torvalds int status; 48551da177e4SLinus Torvalds 48561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4857c1d51931STrond Myklebust if (status != -EIO) 4858c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 485907d30434SBenny Halevy if (!status) 486007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48611da177e4SLinus Torvalds return status; 48621da177e4SLinus Torvalds } 48631da177e4SLinus Torvalds 48641da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 48651da177e4SLinus Torvalds { 48661da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 48671da177e4SLinus Torvalds } 48681da177e4SLinus Torvalds 48691da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 48701da177e4SLinus Torvalds { 48711da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 48721da177e4SLinus Torvalds } 48731da177e4SLinus Torvalds 48741da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 48751da177e4SLinus Torvalds { 48761da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 48778687b63aSAl Viro __be32 *p; 48781da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 48791da177e4SLinus Torvalds int status; 48801da177e4SLinus Torvalds 48811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 48821da177e4SLinus Torvalds if (status) 48831da177e4SLinus Torvalds return status; 4884c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4885c0eae66eSBenny Halevy if (unlikely(!p)) 4886c0eae66eSBenny Halevy goto out_overflow; 48876f723f77SBenny Halevy eof = be32_to_cpup(p++); 4888cccddf4fSBenny Halevy count = be32_to_cpup(p); 48898111f373SChuck Lever hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 48901da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 48911da177e4SLinus Torvalds if (count > recvd) { 4892fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 48931da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 48941da177e4SLinus Torvalds count = recvd; 48951da177e4SLinus Torvalds eof = 0; 48961da177e4SLinus Torvalds } 48971da177e4SLinus Torvalds xdr_read_pages(xdr, count); 48981da177e4SLinus Torvalds res->eof = eof; 48991da177e4SLinus Torvalds res->count = count; 49001da177e4SLinus Torvalds return 0; 4901c0eae66eSBenny Halevy out_overflow: 4902c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4903c0eae66eSBenny Halevy return -EIO; 49041da177e4SLinus Torvalds } 49051da177e4SLinus Torvalds 49061da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 49071da177e4SLinus Torvalds { 49081da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 49091da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4910bcecff77SChuck Lever size_t hdrlen; 4911bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4912bcecff77SChuck Lever int status; 49131da177e4SLinus Torvalds 49141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4915db942bbdSBenny Halevy if (!status) 4916db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4917db942bbdSBenny Halevy if (unlikely(status)) 49181da177e4SLinus Torvalds return status; 491944109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 492044109241SFred Isaman __func__, 4921eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4922eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4923eadf4598STrond Myklebust 49241da177e4SLinus Torvalds 4925db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 49261da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 49271da177e4SLinus Torvalds if (pglen > recvd) 49281da177e4SLinus Torvalds pglen = recvd; 49291da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 49301da177e4SLinus Torvalds 49317bda2cdfSJeff Layton 4932ac396128STrond Myklebust return pglen; 49331da177e4SLinus Torvalds } 49341da177e4SLinus Torvalds 49351da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49361da177e4SLinus Torvalds { 49371da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 49381da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4939bcecff77SChuck Lever size_t hdrlen; 4940bcecff77SChuck Lever u32 len, recvd; 49418687b63aSAl Viro __be32 *p; 49421da177e4SLinus Torvalds int status; 49431da177e4SLinus Torvalds 49441da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49451da177e4SLinus Torvalds if (status) 49461da177e4SLinus Torvalds return status; 49471da177e4SLinus Torvalds 49481da177e4SLinus Torvalds /* Convert length of symlink */ 4949c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4950c0eae66eSBenny Halevy if (unlikely(!p)) 4951c0eae66eSBenny Halevy goto out_overflow; 4952cccddf4fSBenny Halevy len = be32_to_cpup(p); 49531da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4954fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49551da177e4SLinus Torvalds return -ENAMETOOLONG; 49561da177e4SLinus Torvalds } 49571da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 49581da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 49591da177e4SLinus Torvalds if (recvd < len) { 4960fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 49611da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 49621da177e4SLinus Torvalds return -EIO; 49631da177e4SLinus Torvalds } 49641da177e4SLinus Torvalds xdr_read_pages(xdr, len); 49651da177e4SLinus Torvalds /* 49661da177e4SLinus Torvalds * The XDR encode routine has set things up so that 49671da177e4SLinus Torvalds * the link text will be copied directly into the 49681da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 49691da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 49701da177e4SLinus Torvalds * null-termination). 49711da177e4SLinus Torvalds */ 4972b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 49731da177e4SLinus Torvalds return 0; 4974c0eae66eSBenny Halevy out_overflow: 4975c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4976c0eae66eSBenny Halevy return -EIO; 49771da177e4SLinus Torvalds } 49781da177e4SLinus Torvalds 49791da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 49801da177e4SLinus Torvalds { 49811da177e4SLinus Torvalds int status; 49821da177e4SLinus Torvalds 49831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 49841da177e4SLinus Torvalds if (status) 49851da177e4SLinus Torvalds goto out; 49861da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 49871da177e4SLinus Torvalds out: 49881da177e4SLinus Torvalds return status; 49891da177e4SLinus Torvalds } 49901da177e4SLinus Torvalds 49911da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 49921da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 49931da177e4SLinus Torvalds { 49941da177e4SLinus Torvalds int status; 49951da177e4SLinus Torvalds 49961da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 49971da177e4SLinus Torvalds if (status) 49981da177e4SLinus Torvalds goto out; 49991da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 50001da177e4SLinus Torvalds goto out; 50011da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 50021da177e4SLinus Torvalds out: 50031da177e4SLinus Torvalds return status; 50041da177e4SLinus Torvalds } 50051da177e4SLinus Torvalds 50061da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50071da177e4SLinus Torvalds { 50081da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50091da177e4SLinus Torvalds } 50101da177e4SLinus Torvalds 501156ae19f3STrond Myklebust static int 501256ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 501356ae19f3STrond Myklebust { 501456ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 501556ae19f3STrond Myklebust } 501656ae19f3STrond Myklebust 5017029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5018bf118a34SAndy Adamson struct nfs_getaclres *res) 5019029d105eSJ. Bruce Fields { 5020bf118a34SAndy Adamson __be32 *savep, *bm_p; 5021029d105eSJ. Bruce Fields uint32_t attrlen, 5022dae100c2SFred Isaman bitmap[3] = {0}; 5023029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 5024029d105eSJ. Bruce Fields int status; 5025029d105eSJ. Bruce Fields 5026bf118a34SAndy Adamson res->acl_len = 0; 5027029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5028029d105eSJ. Bruce Fields goto out; 5029bf118a34SAndy Adamson bm_p = xdr->p; 5030029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5031029d105eSJ. Bruce Fields goto out; 5032029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5033029d105eSJ. Bruce Fields goto out; 5034029d105eSJ. Bruce Fields 5035029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5036029d105eSJ. Bruce Fields return -EIO; 5037029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5038bcecff77SChuck Lever size_t hdrlen; 5039bcecff77SChuck Lever u32 recvd; 5040029d105eSJ. Bruce Fields 5041bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5042bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5043bf118a34SAndy Adamson * variable length bitmaps.*/ 5044bf118a34SAndy Adamson xdr->p = bm_p; 5045bf118a34SAndy Adamson res->acl_data_offset = be32_to_cpup(bm_p) + 2; 5046bf118a34SAndy Adamson res->acl_data_offset <<= 2; 5047bf118a34SAndy Adamson 5048029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 5049029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 5050029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 5051bf118a34SAndy Adamson attrlen += res->acl_data_offset; 5052029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 5053029d105eSJ. Bruce Fields if (attrlen > recvd) { 5054bf118a34SAndy Adamson if (res->acl_flags & NFS4_ACL_LEN_REQUEST) { 5055bf118a34SAndy Adamson /* getxattr interface called with a NULL buf */ 5056bf118a34SAndy Adamson res->acl_len = attrlen; 5057bf118a34SAndy Adamson goto out; 5058bf118a34SAndy Adamson } 5059bf118a34SAndy Adamson dprintk("NFS: acl reply: attrlen %u > recvd %u\n", 5060029d105eSJ. Bruce Fields attrlen, recvd); 5061029d105eSJ. Bruce Fields return -EINVAL; 5062029d105eSJ. Bruce Fields } 5063029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 5064bf118a34SAndy Adamson res->acl_len = attrlen; 50658c233cf9SJ. Bruce Fields } else 50668c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5067029d105eSJ. Bruce Fields 5068029d105eSJ. Bruce Fields out: 5069029d105eSJ. Bruce Fields return status; 5070029d105eSJ. Bruce Fields } 5071029d105eSJ. Bruce Fields 50721da177e4SLinus Torvalds static int 50731da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 50741da177e4SLinus Torvalds { 50751da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 50761da177e4SLinus Torvalds } 50771da177e4SLinus Torvalds 50789e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 50791da177e4SLinus Torvalds { 50808687b63aSAl Viro __be32 *p; 50811da177e4SLinus Torvalds uint32_t bmlen; 50821da177e4SLinus Torvalds int status; 50831da177e4SLinus Torvalds 50841da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 50851da177e4SLinus Torvalds if (status) 50861da177e4SLinus Torvalds return status; 5087c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5088c0eae66eSBenny Halevy if (unlikely(!p)) 5089c0eae66eSBenny Halevy goto out_overflow; 5090cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5091c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5092c0eae66eSBenny Halevy if (likely(p)) 50931da177e4SLinus Torvalds return 0; 5094c0eae66eSBenny Halevy out_overflow: 5095c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5096c0eae66eSBenny Halevy return -EIO; 50971da177e4SLinus Torvalds } 50981da177e4SLinus Torvalds 5099bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 51001da177e4SLinus Torvalds { 51018687b63aSAl Viro __be32 *p; 51021da177e4SLinus Torvalds uint32_t opnum; 51031da177e4SLinus Torvalds int32_t nfserr; 51041da177e4SLinus Torvalds 5105c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5106c0eae66eSBenny Halevy if (unlikely(!p)) 5107c0eae66eSBenny Halevy goto out_overflow; 51086f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51091da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5110fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51111da177e4SLinus Torvalds " %d\n", opnum); 51121da177e4SLinus Torvalds return -EIO; 51131da177e4SLinus Torvalds } 5114cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51151da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5116c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5117c0eae66eSBenny Halevy if (unlikely(!p)) 5118c0eae66eSBenny Halevy goto out_overflow; 5119bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5120bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51211da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51221da177e4SLinus Torvalds uint32_t len; 51231da177e4SLinus Torvalds 51241da177e4SLinus Torvalds /* skip netid string */ 5125c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5126c0eae66eSBenny Halevy if (unlikely(!p)) 5127c0eae66eSBenny Halevy goto out_overflow; 5128cccddf4fSBenny Halevy len = be32_to_cpup(p); 5129c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5130c0eae66eSBenny Halevy if (unlikely(!p)) 5131c0eae66eSBenny Halevy goto out_overflow; 51321da177e4SLinus Torvalds 51331da177e4SLinus Torvalds /* skip uaddr string */ 5134c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5135c0eae66eSBenny Halevy if (unlikely(!p)) 5136c0eae66eSBenny Halevy goto out_overflow; 5137cccddf4fSBenny Halevy len = be32_to_cpup(p); 5138c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5139c0eae66eSBenny Halevy if (unlikely(!p)) 5140c0eae66eSBenny Halevy goto out_overflow; 51411da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51421da177e4SLinus Torvalds } else 5143856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51441da177e4SLinus Torvalds 51451da177e4SLinus Torvalds return 0; 5146c0eae66eSBenny Halevy out_overflow: 5147c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5148c0eae66eSBenny Halevy return -EIO; 51491da177e4SLinus Torvalds } 51501da177e4SLinus Torvalds 51511da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51521da177e4SLinus Torvalds { 51531da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51541da177e4SLinus Torvalds } 51551da177e4SLinus Torvalds 51561da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51571da177e4SLinus Torvalds { 51588687b63aSAl Viro __be32 *p; 51591da177e4SLinus Torvalds int status; 51601da177e4SLinus Torvalds 51611da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51621da177e4SLinus Torvalds if (status) 51631da177e4SLinus Torvalds return status; 51641da177e4SLinus Torvalds 5165c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 5166c0eae66eSBenny Halevy if (unlikely(!p)) 5167c0eae66eSBenny Halevy goto out_overflow; 51686f723f77SBenny Halevy res->count = be32_to_cpup(p++); 51696f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 517099398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 51711da177e4SLinus Torvalds return 0; 5172c0eae66eSBenny Halevy out_overflow: 5173c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5174c0eae66eSBenny Halevy return -EIO; 51751da177e4SLinus Torvalds } 51761da177e4SLinus Torvalds 51771da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 51781da177e4SLinus Torvalds { 51791da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 51801da177e4SLinus Torvalds } 51811da177e4SLinus Torvalds 51825a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 51835a5ea0d4SBryan Schumaker { 51845a5ea0d4SBryan Schumaker __be32 *p; 51855a5ea0d4SBryan Schumaker 51865a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 51875a5ea0d4SBryan Schumaker if (unlikely(!p)) 51885a5ea0d4SBryan Schumaker goto out_overflow; 51895a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 51905a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 51915a5ea0d4SBryan Schumaker goto out_err; 51925a5ea0d4SBryan Schumaker 51935a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 51945a5ea0d4SBryan Schumaker if (unlikely(!p)) 51955a5ea0d4SBryan Schumaker goto out_overflow; 51965a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 51975a5ea0d4SBryan Schumaker 51985a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 51995a5ea0d4SBryan Schumaker if (unlikely(!p)) 52005a5ea0d4SBryan Schumaker goto out_overflow; 52015a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 52025a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 52035a5ea0d4SBryan Schumaker 52045a5ea0d4SBryan Schumaker return 0; 52055a5ea0d4SBryan Schumaker 52065a5ea0d4SBryan Schumaker out_overflow: 52075a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52085a5ea0d4SBryan Schumaker return -EIO; 52095a5ea0d4SBryan Schumaker out_err: 52105a5ea0d4SBryan Schumaker return -EINVAL; 52115a5ea0d4SBryan Schumaker } 52125a5ea0d4SBryan Schumaker 52135a5ea0d4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52145a5ea0d4SBryan Schumaker { 52155a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 52165a5ea0d4SBryan Schumaker int status; 52175a5ea0d4SBryan Schumaker __be32 *p; 5218c3dfc280SBryan Schumaker int i, num_flavors; 52195a5ea0d4SBryan Schumaker 52205a5ea0d4SBryan Schumaker status = decode_op_hdr(xdr, OP_SECINFO); 5221613e901eSBryan Schumaker if (status) 5222613e901eSBryan Schumaker goto out; 52235a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52245a5ea0d4SBryan Schumaker if (unlikely(!p)) 52255a5ea0d4SBryan Schumaker goto out_overflow; 52265a5ea0d4SBryan Schumaker 5227c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5228c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5229c3dfc280SBryan Schumaker 5230c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52315a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5232c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52335a5ea0d4SBryan Schumaker break; 52345a5ea0d4SBryan Schumaker 52355a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52365a5ea0d4SBryan Schumaker if (unlikely(!p)) 52375a5ea0d4SBryan Schumaker goto out_overflow; 52385a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52395a5ea0d4SBryan Schumaker 52405a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5241613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5242613e901eSBryan Schumaker if (status) 5243613e901eSBryan Schumaker goto out; 52445a5ea0d4SBryan Schumaker } 5245c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52465a5ea0d4SBryan Schumaker } 52475a5ea0d4SBryan Schumaker 5248613e901eSBryan Schumaker out: 5249613e901eSBryan Schumaker return status; 52505a5ea0d4SBryan Schumaker out_overflow: 52515a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52525a5ea0d4SBryan Schumaker return -EIO; 52535a5ea0d4SBryan Schumaker } 52545a5ea0d4SBryan Schumaker 525599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 525699fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 525799fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 525899fe60d0SBenny Halevy { 525999fe60d0SBenny Halevy __be32 *p; 526099fe60d0SBenny Halevy uint32_t dummy; 52612460ba57SBenny Halevy char *dummy_str; 526299fe60d0SBenny Halevy int status; 526399fe60d0SBenny Halevy struct nfs_client *clp = res->client; 52647d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 526599fe60d0SBenny Halevy 526699fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 526799fe60d0SBenny Halevy if (status) 526899fe60d0SBenny Halevy return status; 526999fe60d0SBenny Halevy 5270c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5271c0eae66eSBenny Halevy if (unlikely(!p)) 5272c0eae66eSBenny Halevy goto out_overflow; 5273114f64b5SAndy Adamson xdr_decode_hyper(p, &clp->cl_clientid); 5274c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5275c0eae66eSBenny Halevy if (unlikely(!p)) 5276c0eae66eSBenny Halevy goto out_overflow; 52776f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 52786f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 527999fe60d0SBenny Halevy 528099fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5281cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 528299fe60d0SBenny Halevy if (dummy != SP4_NONE) 528399fe60d0SBenny Halevy return -EIO; 528499fe60d0SBenny Halevy 528599fe60d0SBenny Halevy /* Throw away minor_id */ 5286c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5287c0eae66eSBenny Halevy if (unlikely(!p)) 5288c0eae66eSBenny Halevy goto out_overflow; 528999fe60d0SBenny Halevy 529099fe60d0SBenny Halevy /* Throw away Major id */ 52912460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 52922460ba57SBenny Halevy if (unlikely(status)) 52932460ba57SBenny Halevy return status; 529499fe60d0SBenny Halevy 529578fe0f41SWeston Andros Adamson /* Save server_scope */ 52962460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 52972460ba57SBenny Halevy if (unlikely(status)) 52982460ba57SBenny Halevy return status; 529999fe60d0SBenny Halevy 530078fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 530178fe0f41SWeston Andros Adamson return -EIO; 530278fe0f41SWeston Andros Adamson 530378fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 530478fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 530578fe0f41SWeston Andros Adamson 53067d2ed9acSWeston Andros Adamson /* Implementation Id */ 53077d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 53087d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53097d2ed9acSWeston Andros Adamson goto out_overflow; 53107d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 53117d2ed9acSWeston Andros Adamson 53127d2ed9acSWeston Andros Adamson if (impl_id_count) { 53137d2ed9acSWeston Andros Adamson /* nii_domain */ 53142460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53152460ba57SBenny Halevy if (unlikely(status)) 53162460ba57SBenny Halevy return status; 53177d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53187d2ed9acSWeston Andros Adamson return -EIO; 53197d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 532099fe60d0SBenny Halevy 53217d2ed9acSWeston Andros Adamson /* nii_name */ 53227d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53237d2ed9acSWeston Andros Adamson if (unlikely(status)) 53247d2ed9acSWeston Andros Adamson return status; 53257d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53267d2ed9acSWeston Andros Adamson return -EIO; 53277d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 53287d2ed9acSWeston Andros Adamson 53297d2ed9acSWeston Andros Adamson /* nii_date */ 53307d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 53317d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53327d2ed9acSWeston Andros Adamson goto out_overflow; 53337d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 53347d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 53357d2ed9acSWeston Andros Adamson 53367d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 53377d2ed9acSWeston Andros Adamson } 533899fe60d0SBenny Halevy return 0; 5339c0eae66eSBenny Halevy out_overflow: 5340c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5341c0eae66eSBenny Halevy return -EIO; 534299fe60d0SBenny Halevy } 5343fc931582SAndy Adamson 5344fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5345fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5346fc931582SAndy Adamson { 5347fc931582SAndy Adamson __be32 *p; 5348c9c30dd5SBenny Halevy u32 nr_attrs, val; 5349fc931582SAndy Adamson 5350c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5351c0eae66eSBenny Halevy if (unlikely(!p)) 5352c0eae66eSBenny Halevy goto out_overflow; 5353c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5354c9c30dd5SBenny Halevy if (val) 5355c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 53566f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 53576f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 53586f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 53596f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 53606f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5361cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5362fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5363a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5364a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5365fc931582SAndy Adamson return -EINVAL; 5366fc931582SAndy Adamson } 5367c0eae66eSBenny Halevy if (nr_attrs == 1) { 5368c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5369c0eae66eSBenny Halevy if (unlikely(!p)) 5370c0eae66eSBenny Halevy goto out_overflow; 5371c0eae66eSBenny Halevy } 5372fc931582SAndy Adamson return 0; 5373c0eae66eSBenny Halevy out_overflow: 5374c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5375c0eae66eSBenny Halevy return -EIO; 5376fc931582SAndy Adamson } 5377fc931582SAndy Adamson 5378e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5379e78291e4SBenny Halevy { 5380e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5381fc931582SAndy Adamson } 5382fc931582SAndy Adamson 5383fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5384fc931582SAndy Adamson struct nfs41_create_session_res *res) 5385fc931582SAndy Adamson { 5386fc931582SAndy Adamson __be32 *p; 5387fc931582SAndy Adamson int status; 5388fc931582SAndy Adamson struct nfs_client *clp = res->client; 5389fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5390fc931582SAndy Adamson 5391fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5392e78291e4SBenny Halevy if (!status) 5393e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5394e78291e4SBenny Halevy if (unlikely(status)) 5395fc931582SAndy Adamson return status; 5396fc931582SAndy Adamson 5397fc931582SAndy Adamson /* seqid, flags */ 5398c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5399c0eae66eSBenny Halevy if (unlikely(!p)) 5400c0eae66eSBenny Halevy goto out_overflow; 54016f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5402cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5403fc931582SAndy Adamson 5404fc931582SAndy Adamson /* Channel attributes */ 5405fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5406fc931582SAndy Adamson if (!status) 5407fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5408fc931582SAndy Adamson return status; 5409c0eae66eSBenny Halevy out_overflow: 5410c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5411c0eae66eSBenny Halevy return -EIO; 5412fc931582SAndy Adamson } 54130f3e66c6SAndy Adamson 54140f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 54150f3e66c6SAndy Adamson { 54160f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 54170f3e66c6SAndy Adamson } 541818019753SRicardo Labiaga 541918019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 542018019753SRicardo Labiaga { 542118019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 542218019753SRicardo Labiaga } 542399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 542499fe60d0SBenny Halevy 54259b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 54269b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 54279b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 54289b7b9fccSAndy Adamson { 54299b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5430fc01cea9SAndy Adamson struct nfs4_sessionid id; 5431fc01cea9SAndy Adamson u32 dummy; 5432fc01cea9SAndy Adamson int status; 5433fc01cea9SAndy Adamson __be32 *p; 5434fc01cea9SAndy Adamson 54359b7b9fccSAndy Adamson if (!res->sr_session) 54369b7b9fccSAndy Adamson return 0; 54379b7b9fccSAndy Adamson 5438fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5439e78291e4SBenny Halevy if (!status) 5440e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5441e78291e4SBenny Halevy if (unlikely(status)) 5442fc01cea9SAndy Adamson goto out_err; 54439b7b9fccSAndy Adamson 5444fc01cea9SAndy Adamson /* 5445fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5446fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5447fc01cea9SAndy Adamson */ 5448fdcb4577STrond Myklebust status = -EREMOTEIO; 5449fc01cea9SAndy Adamson 5450fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 5451fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5452fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5453fc01cea9SAndy Adamson goto out_err; 5454fc01cea9SAndy Adamson } 5455e78291e4SBenny Halevy 5456c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5457c0eae66eSBenny Halevy if (unlikely(!p)) 5458c0eae66eSBenny Halevy goto out_overflow; 5459e78291e4SBenny Halevy 5460fc01cea9SAndy Adamson /* seqid */ 54616f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5462dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5463fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5464fc01cea9SAndy Adamson goto out_err; 5465fc01cea9SAndy Adamson } 5466fc01cea9SAndy Adamson /* slot id */ 54676f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5468dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 5469fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5470fc01cea9SAndy Adamson goto out_err; 5471fc01cea9SAndy Adamson } 5472fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 54736f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5474fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 54756f723f77SBenny Halevy dummy = be32_to_cpup(p++); 54760629e370SAlexandros Batsakis /* result flags */ 54770629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5478fc01cea9SAndy Adamson status = 0; 5479fc01cea9SAndy Adamson out_err: 5480fc01cea9SAndy Adamson res->sr_status = status; 5481fc01cea9SAndy Adamson return status; 5482c0eae66eSBenny Halevy out_overflow: 5483c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5484c0eae66eSBenny Halevy status = -EIO; 5485c0eae66eSBenny Halevy goto out_err; 5486fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 54879b7b9fccSAndy Adamson return 0; 5488fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 54899b7b9fccSAndy Adamson } 54909b7b9fccSAndy Adamson 5491b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 54927f11d8d3SAndy Adamson /* 54937f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 54947f11d8d3SAndy Adamson */ 54957f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 54967f11d8d3SAndy Adamson struct pnfs_devicelist *res) 54977f11d8d3SAndy Adamson { 54987f11d8d3SAndy Adamson __be32 *p; 54997f11d8d3SAndy Adamson int status, i; 55007f11d8d3SAndy Adamson struct nfs_writeverf verftemp; 55017f11d8d3SAndy Adamson 55027f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 55037f11d8d3SAndy Adamson if (status) 55047f11d8d3SAndy Adamson return status; 55057f11d8d3SAndy Adamson 55067f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 55077f11d8d3SAndy Adamson if (unlikely(!p)) 55087f11d8d3SAndy Adamson goto out_overflow; 55097f11d8d3SAndy Adamson 55107f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 55117f11d8d3SAndy Adamson p += 2; 55127f11d8d3SAndy Adamson 55137f11d8d3SAndy Adamson /* Read verifier */ 55147f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8); 55157f11d8d3SAndy Adamson 55167f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 55177f11d8d3SAndy Adamson 55187f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 55197f11d8d3SAndy Adamson 55207f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5521a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 55227f11d8d3SAndy Adamson __func__, res->num_devs); 55237f11d8d3SAndy Adamson return -EIO; 55247f11d8d3SAndy Adamson } 55257f11d8d3SAndy Adamson 55267f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 55277f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 55287f11d8d3SAndy Adamson if (unlikely(!p)) 55297f11d8d3SAndy Adamson goto out_overflow; 55307f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 55317f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 55327f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 55337f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 55347f11d8d3SAndy Adamson return 0; 55357f11d8d3SAndy Adamson out_overflow: 55367f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 55377f11d8d3SAndy Adamson return -EIO; 55387f11d8d3SAndy Adamson } 5539b1f69b75SAndy Adamson 5540b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5541b1f69b75SAndy Adamson struct pnfs_device *pdev) 5542b1f69b75SAndy Adamson { 5543b1f69b75SAndy Adamson __be32 *p; 5544b1f69b75SAndy Adamson uint32_t len, type; 5545b1f69b75SAndy Adamson int status; 5546b1f69b75SAndy Adamson 5547b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5548b1f69b75SAndy Adamson if (status) { 5549b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5550b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5551b1f69b75SAndy Adamson if (unlikely(!p)) 5552b1f69b75SAndy Adamson goto out_overflow; 5553b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5554b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5555b1f69b75SAndy Adamson __func__, pdev->mincount); 5556b1f69b75SAndy Adamson } 5557b1f69b75SAndy Adamson return status; 5558b1f69b75SAndy Adamson } 5559b1f69b75SAndy Adamson 5560b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5561b1f69b75SAndy Adamson if (unlikely(!p)) 5562b1f69b75SAndy Adamson goto out_overflow; 5563b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5564b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5565b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5566b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5567b1f69b75SAndy Adamson return -EINVAL; 5568b1f69b75SAndy Adamson } 5569b1f69b75SAndy Adamson /* 5570b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5571b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5572b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5573b1f69b75SAndy Adamson */ 5574b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5575b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 5576b1f69b75SAndy Adamson 5577b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5578b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5579b1f69b75SAndy Adamson if (unlikely(!p)) 5580b1f69b75SAndy Adamson goto out_overflow; 5581b1f69b75SAndy Adamson len = be32_to_cpup(p); 5582b1f69b75SAndy Adamson if (len) { 5583ead00597SChuck Lever uint32_t i; 5584b1f69b75SAndy Adamson 5585b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5586b1f69b75SAndy Adamson if (unlikely(!p)) 5587b1f69b75SAndy Adamson goto out_overflow; 5588b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5589b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5590b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5591b1f69b75SAndy Adamson __func__); 5592b1f69b75SAndy Adamson return -EIO; 5593b1f69b75SAndy Adamson } 5594b1f69b75SAndy Adamson } 5595b1f69b75SAndy Adamson } 5596b1f69b75SAndy Adamson return 0; 5597b1f69b75SAndy Adamson out_overflow: 5598b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5599b1f69b75SAndy Adamson return -EIO; 5600b1f69b75SAndy Adamson } 5601b1f69b75SAndy Adamson 5602b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5603b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5604b1f69b75SAndy Adamson { 5605b1f69b75SAndy Adamson __be32 *p; 5606b1f69b75SAndy Adamson int status; 5607b1f69b75SAndy Adamson u32 layout_count; 560835124a09SWeston Andros Adamson struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 560935124a09SWeston Andros Adamson struct kvec *iov = rcvbuf->head; 561035124a09SWeston Andros Adamson u32 hdrlen, recvd; 5611b1f69b75SAndy Adamson 5612b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5613b1f69b75SAndy Adamson if (status) 5614b1f69b75SAndy Adamson return status; 5615b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 5616b1f69b75SAndy Adamson if (unlikely(!p)) 5617b1f69b75SAndy Adamson goto out_overflow; 5618b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 5619b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 5620b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5621b1f69b75SAndy Adamson if (!layout_count) { 5622b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5623b1f69b75SAndy Adamson __func__); 5624b1f69b75SAndy Adamson return -EINVAL; 5625b1f69b75SAndy Adamson } 5626b1f69b75SAndy Adamson 562735124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5628b1f69b75SAndy Adamson if (unlikely(!p)) 5629b1f69b75SAndy Adamson goto out_overflow; 5630b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5631b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5632b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5633b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 563435124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5635b1f69b75SAndy Adamson 5636b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5637b1f69b75SAndy Adamson __func__, 5638b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5639b1f69b75SAndy Adamson (unsigned long)res->range.length, 5640b1f69b75SAndy Adamson res->range.iomode, 5641b1f69b75SAndy Adamson res->type, 564235124a09SWeston Andros Adamson res->layoutp->len); 5643b1f69b75SAndy Adamson 564435124a09SWeston Andros Adamson hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 564535124a09SWeston Andros Adamson recvd = req->rq_rcv_buf.len - hdrlen; 564635124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 564735124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 564835124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 564935124a09SWeston Andros Adamson res->layoutp->len, recvd); 565035124a09SWeston Andros Adamson return -EINVAL; 565135124a09SWeston Andros Adamson } 565235124a09SWeston Andros Adamson 565335124a09SWeston Andros Adamson xdr_read_pages(xdr, res->layoutp->len); 5654b1f69b75SAndy Adamson 5655b1f69b75SAndy Adamson if (layout_count > 1) { 5656b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5657b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5658b1f69b75SAndy Adamson * the client may see a response that is less than the 5659b1f69b75SAndy Adamson * minimum it requested. 5660b1f69b75SAndy Adamson */ 5661b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5662b1f69b75SAndy Adamson __func__, layout_count); 5663b1f69b75SAndy Adamson } 5664b1f69b75SAndy Adamson 5665b1f69b75SAndy Adamson return 0; 5666b1f69b75SAndy Adamson out_overflow: 5667b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5668b1f69b75SAndy Adamson return -EIO; 5669b1f69b75SAndy Adamson } 5670863a3c6cSAndy Adamson 5671cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5672cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5673cbe82603SBenny Halevy { 5674cbe82603SBenny Halevy __be32 *p; 5675cbe82603SBenny Halevy int status; 5676cbe82603SBenny Halevy 5677cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5678cbe82603SBenny Halevy if (status) 5679cbe82603SBenny Halevy return status; 5680cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5681cbe82603SBenny Halevy if (unlikely(!p)) 5682cbe82603SBenny Halevy goto out_overflow; 5683cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5684cbe82603SBenny Halevy if (res->lrs_present) 5685cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5686cbe82603SBenny Halevy return status; 5687cbe82603SBenny Halevy out_overflow: 5688cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5689cbe82603SBenny Halevy return -EIO; 5690cbe82603SBenny Halevy } 5691cbe82603SBenny Halevy 5692863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5693863a3c6cSAndy Adamson struct rpc_rqst *req, 5694863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5695863a3c6cSAndy Adamson { 5696863a3c6cSAndy Adamson __be32 *p; 5697863a3c6cSAndy Adamson __u32 sizechanged; 5698863a3c6cSAndy Adamson int status; 5699863a3c6cSAndy Adamson 5700863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5701db29c089SAndy Adamson res->status = status; 5702863a3c6cSAndy Adamson if (status) 5703863a3c6cSAndy Adamson return status; 5704863a3c6cSAndy Adamson 5705863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5706863a3c6cSAndy Adamson if (unlikely(!p)) 5707863a3c6cSAndy Adamson goto out_overflow; 5708863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5709863a3c6cSAndy Adamson 5710863a3c6cSAndy Adamson if (sizechanged) { 5711863a3c6cSAndy Adamson /* throw away new size */ 5712863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5713863a3c6cSAndy Adamson if (unlikely(!p)) 5714863a3c6cSAndy Adamson goto out_overflow; 5715863a3c6cSAndy Adamson } 5716863a3c6cSAndy Adamson return 0; 5717863a3c6cSAndy Adamson out_overflow: 5718863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5719863a3c6cSAndy Adamson return -EIO; 5720863a3c6cSAndy Adamson } 57217d974794SBryan Schumaker 57227d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 57237d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 57247d974794SBryan Schumaker { 57257d974794SBryan Schumaker __be32 *p; 57267d974794SBryan Schumaker int status; 57277d974794SBryan Schumaker int num_res; 57287d974794SBryan Schumaker 57297d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 57307d974794SBryan Schumaker if (status) 57317d974794SBryan Schumaker return status; 57327d974794SBryan Schumaker 57337d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 57347d974794SBryan Schumaker if (unlikely(!p)) 57357d974794SBryan Schumaker goto out_overflow; 57367d974794SBryan Schumaker num_res = be32_to_cpup(p++); 57377d974794SBryan Schumaker if (num_res != 1) 57387d974794SBryan Schumaker goto out; 57397d974794SBryan Schumaker 57407d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 57417d974794SBryan Schumaker if (unlikely(!p)) 57427d974794SBryan Schumaker goto out_overflow; 57437d974794SBryan Schumaker res->status = be32_to_cpup(p++); 57441cab0652SBryan Schumaker 57451cab0652SBryan Schumaker return status; 57467d974794SBryan Schumaker out_overflow: 57477d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 57487d974794SBryan Schumaker out: 57497d974794SBryan Schumaker return -EIO; 57507d974794SBryan Schumaker } 57519aeda35fSBryan Schumaker 57529aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 57539aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 57549aeda35fSBryan Schumaker { 57559aeda35fSBryan Schumaker __be32 *p; 57569aeda35fSBryan Schumaker int status; 57579aeda35fSBryan Schumaker 57589aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 57599aeda35fSBryan Schumaker if (status) 57609aeda35fSBryan Schumaker return status; 57619aeda35fSBryan Schumaker 57629aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 57639aeda35fSBryan Schumaker if (unlikely(!p)) 57649aeda35fSBryan Schumaker goto out_overflow; 57659aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 57669aeda35fSBryan Schumaker return res->status; 57679aeda35fSBryan Schumaker out_overflow: 57689aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 57699aeda35fSBryan Schumaker return -EIO; 57709aeda35fSBryan Schumaker } 5771b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5772b1f69b75SAndy Adamson 57731da177e4SLinus Torvalds /* 577449c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 577549c2559eSBenny Halevy */ 577649c2559eSBenny Halevy 577749c2559eSBenny Halevy /* 57781da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 57791da177e4SLinus Torvalds */ 5780bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5781bf269551SChuck Lever struct xdr_stream *xdr, 5782bf269551SChuck Lever struct nfs_closeres *res) 57831da177e4SLinus Torvalds { 57841da177e4SLinus Torvalds struct compound_hdr hdr; 57851da177e4SLinus Torvalds int status; 57861da177e4SLinus Torvalds 5787bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57881da177e4SLinus Torvalds if (status) 57891da177e4SLinus Torvalds goto out; 5790bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57919b7b9fccSAndy Adamson if (status) 57929b7b9fccSAndy Adamson goto out; 5793bf269551SChuck Lever status = decode_putfh(xdr); 57941da177e4SLinus Torvalds if (status) 57951da177e4SLinus Torvalds goto out; 5796bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5797516a6af6STrond Myklebust if (status != 0) 5798516a6af6STrond Myklebust goto out; 57996926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58001da177e4SLinus Torvalds out: 58011da177e4SLinus Torvalds return status; 58021da177e4SLinus Torvalds } 58031da177e4SLinus Torvalds 58041da177e4SLinus Torvalds /* 58051da177e4SLinus Torvalds * Decode ACCESS response 58061da177e4SLinus Torvalds */ 5807bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5808bf269551SChuck Lever struct nfs4_accessres *res) 58091da177e4SLinus Torvalds { 58101da177e4SLinus Torvalds struct compound_hdr hdr; 58111da177e4SLinus Torvalds int status; 58121da177e4SLinus Torvalds 5813bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58149b7b9fccSAndy Adamson if (status) 58159b7b9fccSAndy Adamson goto out; 5816bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58179b7b9fccSAndy Adamson if (status) 58181da177e4SLinus Torvalds goto out; 5819bf269551SChuck Lever status = decode_putfh(xdr); 582076b32999STrond Myklebust if (status != 0) 582176b32999STrond Myklebust goto out; 5822bf269551SChuck Lever status = decode_access(xdr, res); 582376b32999STrond Myklebust if (status != 0) 582476b32999STrond Myklebust goto out; 58256926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58261da177e4SLinus Torvalds out: 58271da177e4SLinus Torvalds return status; 58281da177e4SLinus Torvalds } 58291da177e4SLinus Torvalds 58301da177e4SLinus Torvalds /* 58311da177e4SLinus Torvalds * Decode LOOKUP response 58321da177e4SLinus Torvalds */ 5833bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5834bf269551SChuck Lever struct nfs4_lookup_res *res) 58351da177e4SLinus Torvalds { 58361da177e4SLinus Torvalds struct compound_hdr hdr; 58371da177e4SLinus Torvalds int status; 58381da177e4SLinus Torvalds 5839bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58409b7b9fccSAndy Adamson if (status) 58419b7b9fccSAndy Adamson goto out; 5842bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58439b7b9fccSAndy Adamson if (status) 58441da177e4SLinus Torvalds goto out; 5845bf269551SChuck Lever status = decode_putfh(xdr); 5846bf269551SChuck Lever if (status) 58471da177e4SLinus Torvalds goto out; 5848bf269551SChuck Lever status = decode_lookup(xdr); 5849bf269551SChuck Lever if (status) 58501da177e4SLinus Torvalds goto out; 5851bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5852bf269551SChuck Lever if (status) 58531da177e4SLinus Torvalds goto out; 58546926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 58551da177e4SLinus Torvalds out: 58561da177e4SLinus Torvalds return status; 58571da177e4SLinus Torvalds } 58581da177e4SLinus Torvalds 58591da177e4SLinus Torvalds /* 58601da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 58611da177e4SLinus Torvalds */ 5862bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5863bf269551SChuck Lever struct xdr_stream *xdr, 5864bf269551SChuck Lever struct nfs4_lookup_res *res) 58651da177e4SLinus Torvalds { 58661da177e4SLinus Torvalds struct compound_hdr hdr; 58671da177e4SLinus Torvalds int status; 58681da177e4SLinus Torvalds 5869bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58709b7b9fccSAndy Adamson if (status) 58719b7b9fccSAndy Adamson goto out; 5872bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58739b7b9fccSAndy Adamson if (status) 58741da177e4SLinus Torvalds goto out; 5875bf269551SChuck Lever status = decode_putrootfh(xdr); 5876bf269551SChuck Lever if (status) 58771da177e4SLinus Torvalds goto out; 5878bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5879bf269551SChuck Lever if (status == 0) 58806926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 58811da177e4SLinus Torvalds out: 58821da177e4SLinus Torvalds return status; 58831da177e4SLinus Torvalds } 58841da177e4SLinus Torvalds 58851da177e4SLinus Torvalds /* 58861da177e4SLinus Torvalds * Decode REMOVE response 58871da177e4SLinus Torvalds */ 5888bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5889bf269551SChuck Lever struct nfs_removeres *res) 58901da177e4SLinus Torvalds { 58911da177e4SLinus Torvalds struct compound_hdr hdr; 58921da177e4SLinus Torvalds int status; 58931da177e4SLinus Torvalds 5894bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58959b7b9fccSAndy Adamson if (status) 58969b7b9fccSAndy Adamson goto out; 5897bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58989b7b9fccSAndy Adamson if (status) 58991da177e4SLinus Torvalds goto out; 5900bf269551SChuck Lever status = decode_putfh(xdr); 5901bf269551SChuck Lever if (status) 590216e42959STrond Myklebust goto out; 5903bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 5904bf269551SChuck Lever if (status) 590516e42959STrond Myklebust goto out; 59066926afd1STrond Myklebust decode_getfattr(xdr, res->dir_attr, res->server); 59071da177e4SLinus Torvalds out: 59081da177e4SLinus Torvalds return status; 59091da177e4SLinus Torvalds } 59101da177e4SLinus Torvalds 59111da177e4SLinus Torvalds /* 59121da177e4SLinus Torvalds * Decode RENAME response 59131da177e4SLinus Torvalds */ 5914bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5915bf269551SChuck Lever struct nfs_renameres *res) 59161da177e4SLinus Torvalds { 59171da177e4SLinus Torvalds struct compound_hdr hdr; 59181da177e4SLinus Torvalds int status; 59191da177e4SLinus Torvalds 5920bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59219b7b9fccSAndy Adamson if (status) 59229b7b9fccSAndy Adamson goto out; 5923bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59249b7b9fccSAndy Adamson if (status) 59251da177e4SLinus Torvalds goto out; 5926bf269551SChuck Lever status = decode_putfh(xdr); 5927bf269551SChuck Lever if (status) 59281da177e4SLinus Torvalds goto out; 5929bf269551SChuck Lever status = decode_savefh(xdr); 5930bf269551SChuck Lever if (status) 59311da177e4SLinus Torvalds goto out; 5932bf269551SChuck Lever status = decode_putfh(xdr); 5933bf269551SChuck Lever if (status) 59341da177e4SLinus Torvalds goto out; 5935bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 5936bf269551SChuck Lever if (status) 59376caf2c82STrond Myklebust goto out; 59386caf2c82STrond Myklebust /* Current FH is target directory */ 59396926afd1STrond Myklebust if (decode_getfattr(xdr, res->new_fattr, res->server)) 59406caf2c82STrond Myklebust goto out; 5941bf269551SChuck Lever status = decode_restorefh(xdr); 5942bf269551SChuck Lever if (status) 59436caf2c82STrond Myklebust goto out; 59446926afd1STrond Myklebust decode_getfattr(xdr, res->old_fattr, res->server); 59451da177e4SLinus Torvalds out: 59461da177e4SLinus Torvalds return status; 59471da177e4SLinus Torvalds } 59481da177e4SLinus Torvalds 59491da177e4SLinus Torvalds /* 59501da177e4SLinus Torvalds * Decode LINK response 59511da177e4SLinus Torvalds */ 5952bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5953bf269551SChuck Lever struct nfs4_link_res *res) 59541da177e4SLinus Torvalds { 59551da177e4SLinus Torvalds struct compound_hdr hdr; 59561da177e4SLinus Torvalds int status; 59571da177e4SLinus Torvalds 5958bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59599b7b9fccSAndy Adamson if (status) 59609b7b9fccSAndy Adamson goto out; 5961bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59629b7b9fccSAndy Adamson if (status) 59631da177e4SLinus Torvalds goto out; 5964bf269551SChuck Lever status = decode_putfh(xdr); 5965bf269551SChuck Lever if (status) 59661da177e4SLinus Torvalds goto out; 5967bf269551SChuck Lever status = decode_savefh(xdr); 5968bf269551SChuck Lever if (status) 59691da177e4SLinus Torvalds goto out; 5970bf269551SChuck Lever status = decode_putfh(xdr); 5971bf269551SChuck Lever if (status) 59721da177e4SLinus Torvalds goto out; 5973bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 5974bf269551SChuck Lever if (status) 597591ba2eeeSTrond Myklebust goto out; 597691ba2eeeSTrond Myklebust /* 597791ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 597891ba2eeeSTrond Myklebust * filehandle. 597991ba2eeeSTrond Myklebust */ 59806926afd1STrond Myklebust if (decode_getfattr(xdr, res->dir_attr, res->server)) 598191ba2eeeSTrond Myklebust goto out; 5982bf269551SChuck Lever status = decode_restorefh(xdr); 5983bf269551SChuck Lever if (status) 598491ba2eeeSTrond Myklebust goto out; 59856926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 59861da177e4SLinus Torvalds out: 59871da177e4SLinus Torvalds return status; 59881da177e4SLinus Torvalds } 59891da177e4SLinus Torvalds 59901da177e4SLinus Torvalds /* 59911da177e4SLinus Torvalds * Decode CREATE response 59921da177e4SLinus Torvalds */ 5993bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5994bf269551SChuck Lever struct nfs4_create_res *res) 59951da177e4SLinus Torvalds { 59961da177e4SLinus Torvalds struct compound_hdr hdr; 59971da177e4SLinus Torvalds int status; 59981da177e4SLinus Torvalds 5999bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60009b7b9fccSAndy Adamson if (status) 60019b7b9fccSAndy Adamson goto out; 6002bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60039b7b9fccSAndy Adamson if (status) 60041da177e4SLinus Torvalds goto out; 6005bf269551SChuck Lever status = decode_putfh(xdr); 6006bf269551SChuck Lever if (status) 60071da177e4SLinus Torvalds goto out; 6008bf269551SChuck Lever status = decode_savefh(xdr); 6009bf269551SChuck Lever if (status) 601056ae19f3STrond Myklebust goto out; 6011bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6012bf269551SChuck Lever if (status) 60131da177e4SLinus Torvalds goto out; 6014bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6015bf269551SChuck Lever if (status) 60161da177e4SLinus Torvalds goto out; 60176926afd1STrond Myklebust if (decode_getfattr(xdr, res->fattr, res->server)) 601856ae19f3STrond Myklebust goto out; 6019bf269551SChuck Lever status = decode_restorefh(xdr); 6020bf269551SChuck Lever if (status) 602156ae19f3STrond Myklebust goto out; 60226926afd1STrond Myklebust decode_getfattr(xdr, res->dir_fattr, res->server); 60231da177e4SLinus Torvalds out: 60241da177e4SLinus Torvalds return status; 60251da177e4SLinus Torvalds } 60261da177e4SLinus Torvalds 60271da177e4SLinus Torvalds /* 60281da177e4SLinus Torvalds * Decode SYMLINK response 60291da177e4SLinus Torvalds */ 6030bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6031bf269551SChuck Lever struct nfs4_create_res *res) 60321da177e4SLinus Torvalds { 6033bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60341da177e4SLinus Torvalds } 60351da177e4SLinus Torvalds 60361da177e4SLinus Torvalds /* 60371da177e4SLinus Torvalds * Decode GETATTR response 60381da177e4SLinus Torvalds */ 6039bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6040bf269551SChuck Lever struct nfs4_getattr_res *res) 60411da177e4SLinus Torvalds { 60421da177e4SLinus Torvalds struct compound_hdr hdr; 60431da177e4SLinus Torvalds int status; 60441da177e4SLinus Torvalds 6045bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60461da177e4SLinus Torvalds if (status) 60471da177e4SLinus Torvalds goto out; 6048bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60499b7b9fccSAndy Adamson if (status) 60509b7b9fccSAndy Adamson goto out; 6051bf269551SChuck Lever status = decode_putfh(xdr); 60521da177e4SLinus Torvalds if (status) 60531da177e4SLinus Torvalds goto out; 60546926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 60551da177e4SLinus Torvalds out: 60561da177e4SLinus Torvalds return status; 60571da177e4SLinus Torvalds } 60581da177e4SLinus Torvalds 605923ec6965SJ. Bruce Fields /* 606023ec6965SJ. Bruce Fields * Encode an SETACL request 606123ec6965SJ. Bruce Fields */ 60629f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 60639f06c719SChuck Lever struct nfs_setaclargs *args) 606423ec6965SJ. Bruce Fields { 606523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 606666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 606723ec6965SJ. Bruce Fields }; 606823ec6965SJ. Bruce Fields 60699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 60709f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 60719f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 60729f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6073d017931cSAndy Adamson encode_nops(&hdr); 607423ec6965SJ. Bruce Fields } 607505d564feSAndy Adamson 607623ec6965SJ. Bruce Fields /* 607723ec6965SJ. Bruce Fields * Decode SETACL response 607823ec6965SJ. Bruce Fields */ 607923ec6965SJ. Bruce Fields static int 6080bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 608173c403a9SBenny Halevy struct nfs_setaclres *res) 608223ec6965SJ. Bruce Fields { 608323ec6965SJ. Bruce Fields struct compound_hdr hdr; 608423ec6965SJ. Bruce Fields int status; 608523ec6965SJ. Bruce Fields 6086bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 608723ec6965SJ. Bruce Fields if (status) 608823ec6965SJ. Bruce Fields goto out; 6089bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60909b7b9fccSAndy Adamson if (status) 60919b7b9fccSAndy Adamson goto out; 6092bf269551SChuck Lever status = decode_putfh(xdr); 609323ec6965SJ. Bruce Fields if (status) 609423ec6965SJ. Bruce Fields goto out; 6095bf269551SChuck Lever status = decode_setattr(xdr); 609623ec6965SJ. Bruce Fields out: 609723ec6965SJ. Bruce Fields return status; 609823ec6965SJ. Bruce Fields } 60991da177e4SLinus Torvalds 61001da177e4SLinus Torvalds /* 6101029d105eSJ. Bruce Fields * Decode GETACL response 6102029d105eSJ. Bruce Fields */ 6103029d105eSJ. Bruce Fields static int 6104bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6105663c79b3SBenny Halevy struct nfs_getaclres *res) 6106029d105eSJ. Bruce Fields { 6107029d105eSJ. Bruce Fields struct compound_hdr hdr; 6108029d105eSJ. Bruce Fields int status; 6109029d105eSJ. Bruce Fields 6110bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6111029d105eSJ. Bruce Fields if (status) 6112029d105eSJ. 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); 6117029d105eSJ. Bruce Fields if (status) 6118029d105eSJ. Bruce Fields goto out; 6119bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6120029d105eSJ. Bruce Fields 6121029d105eSJ. Bruce Fields out: 6122029d105eSJ. Bruce Fields return status; 6123029d105eSJ. Bruce Fields } 6124029d105eSJ. Bruce Fields 6125029d105eSJ. Bruce Fields /* 61261da177e4SLinus Torvalds * Decode CLOSE response 61271da177e4SLinus Torvalds */ 6128bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6129bf269551SChuck Lever struct nfs_closeres *res) 61301da177e4SLinus Torvalds { 61311da177e4SLinus Torvalds struct compound_hdr hdr; 61321da177e4SLinus Torvalds int status; 61331da177e4SLinus Torvalds 6134bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61351da177e4SLinus Torvalds if (status) 61361da177e4SLinus Torvalds goto out; 6137bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61389b7b9fccSAndy Adamson if (status) 61399b7b9fccSAndy Adamson goto out; 6140bf269551SChuck Lever status = decode_putfh(xdr); 61411da177e4SLinus Torvalds if (status) 61421da177e4SLinus Torvalds goto out; 6143bf269551SChuck Lever status = decode_close(xdr, res); 6144516a6af6STrond Myklebust if (status != 0) 6145516a6af6STrond Myklebust goto out; 6146516a6af6STrond Myklebust /* 6147516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6148516a6af6STrond Myklebust * in which case the getattr call will fail with 6149516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6150516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6151516a6af6STrond Myklebust */ 61526926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 61531da177e4SLinus Torvalds out: 61541da177e4SLinus Torvalds return status; 61551da177e4SLinus Torvalds } 61561da177e4SLinus Torvalds 61571da177e4SLinus Torvalds /* 61581da177e4SLinus Torvalds * Decode OPEN response 61591da177e4SLinus Torvalds */ 6160bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6161bf269551SChuck Lever struct nfs_openres *res) 61621da177e4SLinus Torvalds { 61631da177e4SLinus Torvalds struct compound_hdr hdr; 61641da177e4SLinus Torvalds int status; 61651da177e4SLinus Torvalds 6166bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61671da177e4SLinus Torvalds if (status) 61681da177e4SLinus Torvalds goto out; 6169bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61709b7b9fccSAndy Adamson if (status) 61719b7b9fccSAndy Adamson goto out; 6172bf269551SChuck Lever status = decode_putfh(xdr); 61731da177e4SLinus Torvalds if (status) 61741da177e4SLinus Torvalds goto out; 6175bf269551SChuck Lever status = decode_savefh(xdr); 617656ae19f3STrond Myklebust if (status) 617756ae19f3STrond Myklebust goto out; 6178bf269551SChuck Lever status = decode_open(xdr, res); 61791da177e4SLinus Torvalds if (status) 61801da177e4SLinus Torvalds goto out; 6181bf269551SChuck Lever if (decode_getfh(xdr, &res->fh) != 0) 61821da177e4SLinus Torvalds goto out; 61836926afd1STrond Myklebust if (decode_getfattr(xdr, res->f_attr, res->server) != 0) 618456ae19f3STrond Myklebust goto out; 6185bf269551SChuck Lever if (decode_restorefh(xdr) != 0) 618656ae19f3STrond Myklebust goto out; 61876926afd1STrond Myklebust decode_getfattr(xdr, res->dir_attr, res->server); 61881da177e4SLinus Torvalds out: 61891da177e4SLinus Torvalds return status; 61901da177e4SLinus Torvalds } 61911da177e4SLinus Torvalds 61921da177e4SLinus Torvalds /* 61931da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 61941da177e4SLinus Torvalds */ 6195bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6196bf269551SChuck Lever struct xdr_stream *xdr, 6197bf269551SChuck Lever struct nfs_open_confirmres *res) 61981da177e4SLinus Torvalds { 61991da177e4SLinus Torvalds struct compound_hdr hdr; 62001da177e4SLinus Torvalds int status; 62011da177e4SLinus Torvalds 6202bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62031da177e4SLinus Torvalds if (status) 62041da177e4SLinus Torvalds goto out; 6205bf269551SChuck Lever status = decode_putfh(xdr); 62061da177e4SLinus Torvalds if (status) 62071da177e4SLinus Torvalds goto out; 6208bf269551SChuck Lever status = decode_open_confirm(xdr, res); 62091da177e4SLinus Torvalds out: 62101da177e4SLinus Torvalds return status; 62111da177e4SLinus Torvalds } 62121da177e4SLinus Torvalds 62131da177e4SLinus Torvalds /* 62141da177e4SLinus Torvalds * Decode OPEN response 62151da177e4SLinus Torvalds */ 6216bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6217bf269551SChuck Lever struct xdr_stream *xdr, 6218bf269551SChuck Lever struct nfs_openres *res) 62191da177e4SLinus Torvalds { 62201da177e4SLinus Torvalds struct compound_hdr hdr; 62211da177e4SLinus Torvalds int status; 62221da177e4SLinus Torvalds 6223bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62241da177e4SLinus Torvalds if (status) 62251da177e4SLinus Torvalds goto out; 6226bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62279b7b9fccSAndy Adamson if (status) 62289b7b9fccSAndy Adamson goto out; 6229bf269551SChuck Lever status = decode_putfh(xdr); 62301da177e4SLinus Torvalds if (status) 62311da177e4SLinus Torvalds goto out; 6232bf269551SChuck Lever status = decode_open(xdr, res); 6233864472e9STrond Myklebust if (status) 6234864472e9STrond Myklebust goto out; 62356926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62361da177e4SLinus Torvalds out: 62371da177e4SLinus Torvalds return status; 62381da177e4SLinus Torvalds } 62391da177e4SLinus Torvalds 62401da177e4SLinus Torvalds /* 62411da177e4SLinus Torvalds * Decode SETATTR response 62421da177e4SLinus Torvalds */ 6243bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6244bf269551SChuck Lever struct xdr_stream *xdr, 6245bf269551SChuck Lever struct nfs_setattrres *res) 62461da177e4SLinus Torvalds { 62471da177e4SLinus Torvalds struct compound_hdr hdr; 62481da177e4SLinus Torvalds int status; 62491da177e4SLinus Torvalds 6250bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62511da177e4SLinus Torvalds if (status) 62521da177e4SLinus Torvalds goto out; 6253bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62549b7b9fccSAndy Adamson if (status) 62559b7b9fccSAndy Adamson goto out; 6256bf269551SChuck Lever status = decode_putfh(xdr); 62571da177e4SLinus Torvalds if (status) 62581da177e4SLinus Torvalds goto out; 6259bf269551SChuck Lever status = decode_setattr(xdr); 62601da177e4SLinus Torvalds if (status) 62611da177e4SLinus Torvalds goto out; 62626926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62631da177e4SLinus Torvalds out: 62641da177e4SLinus Torvalds return status; 62651da177e4SLinus Torvalds } 62661da177e4SLinus Torvalds 62671da177e4SLinus Torvalds /* 62681da177e4SLinus Torvalds * Decode LOCK response 62691da177e4SLinus Torvalds */ 6270bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6271bf269551SChuck Lever struct nfs_lock_res *res) 62721da177e4SLinus Torvalds { 62731da177e4SLinus Torvalds struct compound_hdr hdr; 62741da177e4SLinus Torvalds int status; 62751da177e4SLinus Torvalds 6276bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62771da177e4SLinus Torvalds if (status) 62781da177e4SLinus Torvalds goto out; 6279bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62809b7b9fccSAndy Adamson if (status) 62819b7b9fccSAndy Adamson goto out; 6282bf269551SChuck Lever status = decode_putfh(xdr); 62831da177e4SLinus Torvalds if (status) 62841da177e4SLinus Torvalds goto out; 6285bf269551SChuck Lever status = decode_lock(xdr, res); 62861da177e4SLinus Torvalds out: 62871da177e4SLinus Torvalds return status; 62881da177e4SLinus Torvalds } 62891da177e4SLinus Torvalds 62901da177e4SLinus Torvalds /* 62911da177e4SLinus Torvalds * Decode LOCKT response 62921da177e4SLinus Torvalds */ 6293bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6294bf269551SChuck Lever struct nfs_lockt_res *res) 62951da177e4SLinus Torvalds { 62961da177e4SLinus Torvalds struct compound_hdr hdr; 62971da177e4SLinus Torvalds int status; 62981da177e4SLinus Torvalds 6299bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63001da177e4SLinus Torvalds if (status) 63011da177e4SLinus Torvalds goto out; 6302bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63039b7b9fccSAndy Adamson if (status) 63049b7b9fccSAndy Adamson goto out; 6305bf269551SChuck Lever status = decode_putfh(xdr); 63061da177e4SLinus Torvalds if (status) 63071da177e4SLinus Torvalds goto out; 6308bf269551SChuck Lever status = decode_lockt(xdr, res); 63091da177e4SLinus Torvalds out: 63101da177e4SLinus Torvalds return status; 63111da177e4SLinus Torvalds } 63121da177e4SLinus Torvalds 63131da177e4SLinus Torvalds /* 63141da177e4SLinus Torvalds * Decode LOCKU response 63151da177e4SLinus Torvalds */ 6316bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6317bf269551SChuck Lever struct nfs_locku_res *res) 63181da177e4SLinus Torvalds { 63191da177e4SLinus Torvalds struct compound_hdr hdr; 63201da177e4SLinus Torvalds int status; 63211da177e4SLinus Torvalds 6322bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63231da177e4SLinus Torvalds if (status) 63241da177e4SLinus Torvalds goto out; 6325bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63269b7b9fccSAndy Adamson if (status) 63279b7b9fccSAndy Adamson goto out; 6328bf269551SChuck Lever status = decode_putfh(xdr); 63291da177e4SLinus Torvalds if (status) 63301da177e4SLinus Torvalds goto out; 6331bf269551SChuck Lever status = decode_locku(xdr, res); 63321da177e4SLinus Torvalds out: 63331da177e4SLinus Torvalds return status; 63341da177e4SLinus Torvalds } 63351da177e4SLinus Torvalds 6336bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6337bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6338d3c7b7ccSTrond Myklebust { 6339d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6340d3c7b7ccSTrond Myklebust int status; 6341d3c7b7ccSTrond Myklebust 6342bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6343d3c7b7ccSTrond Myklebust if (!status) 6344bf269551SChuck Lever status = decode_release_lockowner(xdr); 6345d3c7b7ccSTrond Myklebust return status; 6346d3c7b7ccSTrond Myklebust } 6347d3c7b7ccSTrond Myklebust 63481da177e4SLinus Torvalds /* 63491da177e4SLinus Torvalds * Decode READLINK response 63501da177e4SLinus Torvalds */ 6351bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6352bf269551SChuck Lever struct xdr_stream *xdr, 6353f50c7000SBenny Halevy struct nfs4_readlink_res *res) 63541da177e4SLinus Torvalds { 63551da177e4SLinus Torvalds struct compound_hdr hdr; 63561da177e4SLinus Torvalds int status; 63571da177e4SLinus Torvalds 6358bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63591da177e4SLinus Torvalds if (status) 63601da177e4SLinus Torvalds goto out; 6361bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63629b7b9fccSAndy Adamson if (status) 63639b7b9fccSAndy Adamson goto out; 6364bf269551SChuck Lever status = decode_putfh(xdr); 63651da177e4SLinus Torvalds if (status) 63661da177e4SLinus Torvalds goto out; 6367bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 63681da177e4SLinus Torvalds out: 63691da177e4SLinus Torvalds return status; 63701da177e4SLinus Torvalds } 63711da177e4SLinus Torvalds 63721da177e4SLinus Torvalds /* 63731da177e4SLinus Torvalds * Decode READDIR response 63741da177e4SLinus Torvalds */ 6375bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6376bf269551SChuck Lever struct nfs4_readdir_res *res) 63771da177e4SLinus Torvalds { 63781da177e4SLinus Torvalds struct compound_hdr hdr; 63791da177e4SLinus Torvalds int status; 63801da177e4SLinus Torvalds 6381bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63821da177e4SLinus Torvalds if (status) 63831da177e4SLinus Torvalds goto out; 6384bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63859b7b9fccSAndy Adamson if (status) 63869b7b9fccSAndy Adamson goto out; 6387bf269551SChuck Lever status = decode_putfh(xdr); 63881da177e4SLinus Torvalds if (status) 63891da177e4SLinus Torvalds goto out; 6390bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 63911da177e4SLinus Torvalds out: 63921da177e4SLinus Torvalds return status; 63931da177e4SLinus Torvalds } 63941da177e4SLinus Torvalds 63951da177e4SLinus Torvalds /* 63961da177e4SLinus Torvalds * Decode Read response 63971da177e4SLinus Torvalds */ 6398bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6399bf269551SChuck Lever struct nfs_readres *res) 64001da177e4SLinus Torvalds { 64011da177e4SLinus Torvalds struct compound_hdr hdr; 64021da177e4SLinus Torvalds int status; 64031da177e4SLinus Torvalds 6404bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64051da177e4SLinus Torvalds if (status) 64061da177e4SLinus Torvalds goto out; 6407bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64089b7b9fccSAndy Adamson if (status) 64099b7b9fccSAndy Adamson goto out; 6410bf269551SChuck Lever status = decode_putfh(xdr); 64111da177e4SLinus Torvalds if (status) 64121da177e4SLinus Torvalds goto out; 6413bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 64141da177e4SLinus Torvalds if (!status) 64151da177e4SLinus Torvalds status = res->count; 64161da177e4SLinus Torvalds out: 64171da177e4SLinus Torvalds return status; 64181da177e4SLinus Torvalds } 64191da177e4SLinus Torvalds 64201da177e4SLinus Torvalds /* 64211da177e4SLinus Torvalds * Decode WRITE response 64221da177e4SLinus Torvalds */ 6423bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6424bf269551SChuck Lever struct nfs_writeres *res) 64251da177e4SLinus Torvalds { 64261da177e4SLinus Torvalds struct compound_hdr hdr; 64271da177e4SLinus Torvalds int status; 64281da177e4SLinus Torvalds 6429bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64301da177e4SLinus Torvalds if (status) 64311da177e4SLinus Torvalds goto out; 6432bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64339b7b9fccSAndy Adamson if (status) 64349b7b9fccSAndy Adamson goto out; 6435bf269551SChuck Lever status = decode_putfh(xdr); 64361da177e4SLinus Torvalds if (status) 64371da177e4SLinus Torvalds goto out; 6438bf269551SChuck Lever status = decode_write(xdr, res); 64394f9838c7STrond Myklebust if (status) 64404f9838c7STrond Myklebust goto out; 64417ffd1064SFred Isaman if (res->fattr) 64426926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64431da177e4SLinus Torvalds if (!status) 64441da177e4SLinus Torvalds status = res->count; 64451da177e4SLinus Torvalds out: 64461da177e4SLinus Torvalds return status; 64471da177e4SLinus Torvalds } 64481da177e4SLinus Torvalds 64491da177e4SLinus Torvalds /* 64501da177e4SLinus Torvalds * Decode COMMIT response 64511da177e4SLinus Torvalds */ 6452bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6453bf269551SChuck Lever struct nfs_writeres *res) 64541da177e4SLinus Torvalds { 64551da177e4SLinus Torvalds struct compound_hdr hdr; 64561da177e4SLinus Torvalds int status; 64571da177e4SLinus Torvalds 6458bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64591da177e4SLinus Torvalds if (status) 64601da177e4SLinus Torvalds goto out; 6461bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64629b7b9fccSAndy Adamson if (status) 64639b7b9fccSAndy Adamson goto out; 6464bf269551SChuck Lever status = decode_putfh(xdr); 64651da177e4SLinus Torvalds if (status) 64661da177e4SLinus Torvalds goto out; 6467bf269551SChuck Lever status = decode_commit(xdr, res); 64684f9838c7STrond Myklebust if (status) 64694f9838c7STrond Myklebust goto out; 6470988b6dceSFred Isaman if (res->fattr) 64716926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64721da177e4SLinus Torvalds out: 64731da177e4SLinus Torvalds return status; 64741da177e4SLinus Torvalds } 64751da177e4SLinus Torvalds 64761da177e4SLinus Torvalds /* 64778b173218SRicardo Labiaga * Decode FSINFO response 64781da177e4SLinus Torvalds */ 6479bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 64803dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 64811da177e4SLinus Torvalds { 64821da177e4SLinus Torvalds struct compound_hdr hdr; 64831da177e4SLinus Torvalds int status; 64841da177e4SLinus Torvalds 6485bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64861da177e4SLinus Torvalds if (!status) 6487bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 64889b7b9fccSAndy Adamson if (!status) 6489bf269551SChuck Lever status = decode_putfh(xdr); 64901da177e4SLinus Torvalds if (!status) 6491bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 64921da177e4SLinus Torvalds return status; 64931da177e4SLinus Torvalds } 64941da177e4SLinus Torvalds 64951da177e4SLinus Torvalds /* 64968b173218SRicardo Labiaga * Decode PATHCONF response 64971da177e4SLinus Torvalds */ 6498bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6499d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 65001da177e4SLinus Torvalds { 65011da177e4SLinus Torvalds struct compound_hdr hdr; 65021da177e4SLinus Torvalds int status; 65031da177e4SLinus Torvalds 6504bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65051da177e4SLinus Torvalds if (!status) 6506bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65079b7b9fccSAndy Adamson if (!status) 6508bf269551SChuck Lever status = decode_putfh(xdr); 65091da177e4SLinus Torvalds if (!status) 6510bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 65111da177e4SLinus Torvalds return status; 65121da177e4SLinus Torvalds } 65131da177e4SLinus Torvalds 65141da177e4SLinus Torvalds /* 65158b173218SRicardo Labiaga * Decode STATFS response 65161da177e4SLinus Torvalds */ 6517bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 651824ad148aSBenny Halevy struct nfs4_statfs_res *res) 65191da177e4SLinus Torvalds { 65201da177e4SLinus Torvalds struct compound_hdr hdr; 65211da177e4SLinus Torvalds int status; 65221da177e4SLinus Torvalds 6523bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65241da177e4SLinus Torvalds if (!status) 6525bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65269b7b9fccSAndy Adamson if (!status) 6527bf269551SChuck Lever status = decode_putfh(xdr); 65281da177e4SLinus Torvalds if (!status) 6529bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 65301da177e4SLinus Torvalds return status; 65311da177e4SLinus Torvalds } 65321da177e4SLinus Torvalds 65331da177e4SLinus Torvalds /* 65348b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65351da177e4SLinus Torvalds */ 6536bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6537bf269551SChuck Lever struct xdr_stream *xdr, 6538bf269551SChuck Lever struct nfs4_server_caps_res *res) 65391da177e4SLinus Torvalds { 65401da177e4SLinus Torvalds struct compound_hdr hdr; 65411da177e4SLinus Torvalds int status; 65421da177e4SLinus Torvalds 6543bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65449b7b9fccSAndy Adamson if (status) 65459b7b9fccSAndy Adamson goto out; 6546bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65479b7b9fccSAndy Adamson if (status) 65481da177e4SLinus Torvalds goto out; 6549bf269551SChuck Lever status = decode_putfh(xdr); 6550bf269551SChuck Lever if (status) 65511da177e4SLinus Torvalds goto out; 6552bf269551SChuck Lever status = decode_server_caps(xdr, res); 65531da177e4SLinus Torvalds out: 65541da177e4SLinus Torvalds return status; 65551da177e4SLinus Torvalds } 65561da177e4SLinus Torvalds 65571da177e4SLinus Torvalds /* 65581da177e4SLinus Torvalds * Decode RENEW response 65591da177e4SLinus Torvalds */ 6560bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6561bf269551SChuck Lever void *__unused) 65621da177e4SLinus Torvalds { 65631da177e4SLinus Torvalds struct compound_hdr hdr; 65641da177e4SLinus Torvalds int status; 65651da177e4SLinus Torvalds 6566bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65671da177e4SLinus Torvalds if (!status) 6568bf269551SChuck Lever status = decode_renew(xdr); 65691da177e4SLinus Torvalds return status; 65701da177e4SLinus Torvalds } 65711da177e4SLinus Torvalds 65721da177e4SLinus Torvalds /* 65738b173218SRicardo Labiaga * Decode SETCLIENTID response 65741da177e4SLinus Torvalds */ 6575bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6576bf269551SChuck Lever struct xdr_stream *xdr, 6577bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 65781da177e4SLinus Torvalds { 65791da177e4SLinus Torvalds struct compound_hdr hdr; 65801da177e4SLinus Torvalds int status; 65811da177e4SLinus Torvalds 6582bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65831da177e4SLinus Torvalds if (!status) 6584bf269551SChuck Lever status = decode_setclientid(xdr, res); 65851da177e4SLinus Torvalds return status; 65861da177e4SLinus Torvalds } 65871da177e4SLinus Torvalds 65881da177e4SLinus Torvalds /* 65898b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 65901da177e4SLinus Torvalds */ 6591bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6592bf269551SChuck Lever struct xdr_stream *xdr, 6593bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 65941da177e4SLinus Torvalds { 65951da177e4SLinus Torvalds struct compound_hdr hdr; 65961da177e4SLinus Torvalds int status; 65971da177e4SLinus Torvalds 6598bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65991da177e4SLinus Torvalds if (!status) 6600bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 66011da177e4SLinus Torvalds if (!status) 6602bf269551SChuck Lever status = decode_putrootfh(xdr); 66031da177e4SLinus Torvalds if (!status) 6604bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 66051da177e4SLinus Torvalds return status; 66061da177e4SLinus Torvalds } 66071da177e4SLinus Torvalds 66081da177e4SLinus Torvalds /* 66098b173218SRicardo Labiaga * Decode DELEGRETURN response 66101da177e4SLinus Torvalds */ 6611bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6612bf269551SChuck Lever struct xdr_stream *xdr, 6613bf269551SChuck Lever struct nfs4_delegreturnres *res) 66141da177e4SLinus Torvalds { 66151da177e4SLinus Torvalds struct compound_hdr hdr; 66161da177e4SLinus Torvalds int status; 66171da177e4SLinus Torvalds 6618bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66199b7b9fccSAndy Adamson if (status) 66209b7b9fccSAndy Adamson goto out; 6621bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66229b7b9fccSAndy Adamson if (status) 6623fa178f29STrond Myklebust goto out; 6624bf269551SChuck Lever status = decode_putfh(xdr); 6625fa178f29STrond Myklebust if (status != 0) 6626fa178f29STrond Myklebust goto out; 6627bf269551SChuck Lever status = decode_delegreturn(xdr); 6628556ae3bbSJeff Layton if (status != 0) 6629556ae3bbSJeff Layton goto out; 66306926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6631fa178f29STrond Myklebust out: 66321da177e4SLinus Torvalds return status; 66331da177e4SLinus Torvalds } 66341da177e4SLinus Torvalds 6635683b57b4STrond Myklebust /* 66368b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6637683b57b4STrond Myklebust */ 6638bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6639bf269551SChuck Lever struct xdr_stream *xdr, 664022958463SBenny Halevy struct nfs4_fs_locations_res *res) 6641683b57b4STrond Myklebust { 6642683b57b4STrond Myklebust struct compound_hdr hdr; 6643683b57b4STrond Myklebust int status; 6644683b57b4STrond Myklebust 6645bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66469b7b9fccSAndy Adamson if (status) 66479b7b9fccSAndy Adamson goto out; 6648bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66499b7b9fccSAndy Adamson if (status) 6650683b57b4STrond Myklebust goto out; 6651bf269551SChuck Lever status = decode_putfh(xdr); 6652bf269551SChuck Lever if (status) 6653683b57b4STrond Myklebust goto out; 6654bf269551SChuck Lever status = decode_lookup(xdr); 6655bf269551SChuck Lever if (status) 6656683b57b4STrond Myklebust goto out; 6657bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 66588b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 66598b7e3f49STrond Myklebust NULL, res->fs_locations, 66606926afd1STrond Myklebust res->fs_locations->server); 6661683b57b4STrond Myklebust out: 6662683b57b4STrond Myklebust return status; 6663683b57b4STrond Myklebust } 6664683b57b4STrond Myklebust 66655a5ea0d4SBryan Schumaker /* 66665a5ea0d4SBryan Schumaker * Decode SECINFO response 66675a5ea0d4SBryan Schumaker */ 66685a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 66695a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 66705a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 66715a5ea0d4SBryan Schumaker { 66725a5ea0d4SBryan Schumaker struct compound_hdr hdr; 66735a5ea0d4SBryan Schumaker int status; 66745a5ea0d4SBryan Schumaker 66755a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 66765a5ea0d4SBryan Schumaker if (status) 66775a5ea0d4SBryan Schumaker goto out; 66785a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 66795a5ea0d4SBryan Schumaker if (status) 66805a5ea0d4SBryan Schumaker goto out; 66815a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 66825a5ea0d4SBryan Schumaker if (status) 66835a5ea0d4SBryan Schumaker goto out; 66845a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 66855a5ea0d4SBryan Schumaker out: 66865a5ea0d4SBryan Schumaker return status; 66875a5ea0d4SBryan Schumaker } 66885a5ea0d4SBryan Schumaker 668999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 669099fe60d0SBenny Halevy /* 66918b173218SRicardo Labiaga * Decode EXCHANGE_ID response 669299fe60d0SBenny Halevy */ 6693bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6694bf269551SChuck Lever struct xdr_stream *xdr, 669599fe60d0SBenny Halevy void *res) 669699fe60d0SBenny Halevy { 669799fe60d0SBenny Halevy struct compound_hdr hdr; 669899fe60d0SBenny Halevy int status; 669999fe60d0SBenny Halevy 6700bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 670199fe60d0SBenny Halevy if (!status) 6702bf269551SChuck Lever status = decode_exchange_id(xdr, res); 670399fe60d0SBenny Halevy return status; 670499fe60d0SBenny Halevy } 67052050f0ccSAndy Adamson 67062050f0ccSAndy Adamson /* 67078b173218SRicardo Labiaga * Decode CREATE_SESSION response 6708fc931582SAndy Adamson */ 6709bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6710bf269551SChuck Lever struct xdr_stream *xdr, 6711fc931582SAndy Adamson struct nfs41_create_session_res *res) 6712fc931582SAndy Adamson { 6713fc931582SAndy Adamson struct compound_hdr hdr; 6714fc931582SAndy Adamson int status; 6715fc931582SAndy Adamson 6716bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6717fc931582SAndy Adamson if (!status) 6718bf269551SChuck Lever status = decode_create_session(xdr, res); 6719fc931582SAndy Adamson return status; 6720fc931582SAndy Adamson } 6721fc931582SAndy Adamson 6722fc931582SAndy Adamson /* 67238b173218SRicardo Labiaga * Decode DESTROY_SESSION response 67240f3e66c6SAndy Adamson */ 6725bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6726bf269551SChuck Lever struct xdr_stream *xdr, 6727bf269551SChuck Lever void *res) 67280f3e66c6SAndy Adamson { 67290f3e66c6SAndy Adamson struct compound_hdr hdr; 67300f3e66c6SAndy Adamson int status; 67310f3e66c6SAndy Adamson 6732bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67330f3e66c6SAndy Adamson if (!status) 6734bf269551SChuck Lever status = decode_destroy_session(xdr, res); 67350f3e66c6SAndy Adamson return status; 67360f3e66c6SAndy Adamson } 67370f3e66c6SAndy Adamson 67380f3e66c6SAndy Adamson /* 67398b173218SRicardo Labiaga * Decode SEQUENCE response 6740fc01cea9SAndy Adamson */ 6741bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6742bf269551SChuck Lever struct xdr_stream *xdr, 6743fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6744fc01cea9SAndy Adamson { 6745fc01cea9SAndy Adamson struct compound_hdr hdr; 6746fc01cea9SAndy Adamson int status; 6747fc01cea9SAndy Adamson 6748bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6749fc01cea9SAndy Adamson if (!status) 6750bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6751fc01cea9SAndy Adamson return status; 6752fc01cea9SAndy Adamson } 6753fc01cea9SAndy Adamson 6754fc01cea9SAndy Adamson /* 67558b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 67562050f0ccSAndy Adamson */ 6757bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6758bf269551SChuck Lever struct xdr_stream *xdr, 67592050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 67602050f0ccSAndy Adamson { 67612050f0ccSAndy Adamson struct compound_hdr hdr; 67622050f0ccSAndy Adamson int status; 67632050f0ccSAndy Adamson 6764bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67652050f0ccSAndy Adamson if (!status) 6766bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 67672050f0ccSAndy Adamson if (!status) 6768bf269551SChuck Lever status = decode_putrootfh(xdr); 67692050f0ccSAndy Adamson if (!status) 6770bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 67712050f0ccSAndy Adamson return status; 67722050f0ccSAndy Adamson } 677318019753SRicardo Labiaga 677418019753SRicardo Labiaga /* 677518019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 677618019753SRicardo Labiaga */ 6777bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6778bf269551SChuck Lever struct xdr_stream *xdr, 677918019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 678018019753SRicardo Labiaga { 678118019753SRicardo Labiaga struct compound_hdr hdr; 678218019753SRicardo Labiaga int status; 678318019753SRicardo Labiaga 6784bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 678518019753SRicardo Labiaga if (!status) 6786bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 678718019753SRicardo Labiaga if (!status) 6788bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 678918019753SRicardo Labiaga return status; 679018019753SRicardo Labiaga } 6791b1f69b75SAndy Adamson 6792b1f69b75SAndy Adamson /* 67937f11d8d3SAndy Adamson * Decode GETDEVICELIST response 67947f11d8d3SAndy Adamson */ 67957f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 67967f11d8d3SAndy Adamson struct xdr_stream *xdr, 67977f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 67987f11d8d3SAndy Adamson { 67997f11d8d3SAndy Adamson struct compound_hdr hdr; 68007f11d8d3SAndy Adamson int status; 68017f11d8d3SAndy Adamson 68027f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 68037f11d8d3SAndy Adamson 68047f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 68057f11d8d3SAndy Adamson if (status != 0) 68067f11d8d3SAndy Adamson goto out; 68077f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 68087f11d8d3SAndy Adamson if (status != 0) 68097f11d8d3SAndy Adamson goto out; 68107f11d8d3SAndy Adamson status = decode_putfh(xdr); 68117f11d8d3SAndy Adamson if (status != 0) 68127f11d8d3SAndy Adamson goto out; 68137f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 68147f11d8d3SAndy Adamson out: 68157f11d8d3SAndy Adamson return status; 68167f11d8d3SAndy Adamson } 68177f11d8d3SAndy Adamson 68187f11d8d3SAndy Adamson /* 6819b1f69b75SAndy Adamson * Decode GETDEVINFO response 6820b1f69b75SAndy Adamson */ 6821bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6822bf269551SChuck Lever struct xdr_stream *xdr, 6823b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6824b1f69b75SAndy Adamson { 6825b1f69b75SAndy Adamson struct compound_hdr hdr; 6826b1f69b75SAndy Adamson int status; 6827b1f69b75SAndy Adamson 6828bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6829b1f69b75SAndy Adamson if (status != 0) 6830b1f69b75SAndy Adamson goto out; 6831bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6832b1f69b75SAndy Adamson if (status != 0) 6833b1f69b75SAndy Adamson goto out; 6834bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6835b1f69b75SAndy Adamson out: 6836b1f69b75SAndy Adamson return status; 6837b1f69b75SAndy Adamson } 6838b1f69b75SAndy Adamson 6839b1f69b75SAndy Adamson /* 6840b1f69b75SAndy Adamson * Decode LAYOUTGET response 6841b1f69b75SAndy Adamson */ 6842bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6843bf269551SChuck Lever struct xdr_stream *xdr, 6844b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6845b1f69b75SAndy Adamson { 6846b1f69b75SAndy Adamson struct compound_hdr hdr; 6847b1f69b75SAndy Adamson int status; 6848b1f69b75SAndy Adamson 6849bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6850b1f69b75SAndy Adamson if (status) 6851b1f69b75SAndy Adamson goto out; 6852bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6853b1f69b75SAndy Adamson if (status) 6854b1f69b75SAndy Adamson goto out; 6855bf269551SChuck Lever status = decode_putfh(xdr); 6856b1f69b75SAndy Adamson if (status) 6857b1f69b75SAndy Adamson goto out; 6858bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6859b1f69b75SAndy Adamson out: 6860b1f69b75SAndy Adamson return status; 6861b1f69b75SAndy Adamson } 6862863a3c6cSAndy Adamson 6863863a3c6cSAndy Adamson /* 6864cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6865cbe82603SBenny Halevy */ 6866cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6867cbe82603SBenny Halevy struct xdr_stream *xdr, 6868cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6869cbe82603SBenny Halevy { 6870cbe82603SBenny Halevy struct compound_hdr hdr; 6871cbe82603SBenny Halevy int status; 6872cbe82603SBenny Halevy 6873cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6874cbe82603SBenny Halevy if (status) 6875cbe82603SBenny Halevy goto out; 6876cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6877cbe82603SBenny Halevy if (status) 6878cbe82603SBenny Halevy goto out; 6879cbe82603SBenny Halevy status = decode_putfh(xdr); 6880cbe82603SBenny Halevy if (status) 6881cbe82603SBenny Halevy goto out; 6882cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6883cbe82603SBenny Halevy out: 6884cbe82603SBenny Halevy return status; 6885cbe82603SBenny Halevy } 6886cbe82603SBenny Halevy 6887cbe82603SBenny Halevy /* 6888863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6889863a3c6cSAndy Adamson */ 6890863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6891863a3c6cSAndy Adamson struct xdr_stream *xdr, 6892863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6893863a3c6cSAndy Adamson { 6894863a3c6cSAndy Adamson struct compound_hdr hdr; 6895863a3c6cSAndy Adamson int status; 6896863a3c6cSAndy Adamson 6897863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6898863a3c6cSAndy Adamson if (status) 6899863a3c6cSAndy Adamson goto out; 6900863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6901863a3c6cSAndy Adamson if (status) 6902863a3c6cSAndy Adamson goto out; 6903863a3c6cSAndy Adamson status = decode_putfh(xdr); 6904863a3c6cSAndy Adamson if (status) 6905863a3c6cSAndy Adamson goto out; 6906863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6907863a3c6cSAndy Adamson if (status) 6908863a3c6cSAndy Adamson goto out; 69096926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6910863a3c6cSAndy Adamson out: 6911863a3c6cSAndy Adamson return status; 6912863a3c6cSAndy Adamson } 6913fca78d6dSBryan Schumaker 6914fca78d6dSBryan Schumaker /* 6915fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 6916fca78d6dSBryan Schumaker */ 6917fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 6918fca78d6dSBryan Schumaker struct xdr_stream *xdr, 6919fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 6920fca78d6dSBryan Schumaker { 6921fca78d6dSBryan Schumaker struct compound_hdr hdr; 6922fca78d6dSBryan Schumaker int status; 6923fca78d6dSBryan Schumaker 6924fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 6925fca78d6dSBryan Schumaker if (status) 6926fca78d6dSBryan Schumaker goto out; 6927fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 6928fca78d6dSBryan Schumaker if (status) 6929fca78d6dSBryan Schumaker goto out; 6930fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 6931fca78d6dSBryan Schumaker if (status) 6932fca78d6dSBryan Schumaker goto out; 6933fca78d6dSBryan Schumaker status = decode_secinfo(xdr, res); 6934fca78d6dSBryan Schumaker out: 6935fca78d6dSBryan Schumaker return status; 6936fca78d6dSBryan Schumaker } 69377d974794SBryan Schumaker 69387d974794SBryan Schumaker /* 69397d974794SBryan Schumaker * Decode TEST_STATEID response 69407d974794SBryan Schumaker */ 69417d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 69427d974794SBryan Schumaker struct xdr_stream *xdr, 69437d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 69447d974794SBryan Schumaker { 69457d974794SBryan Schumaker struct compound_hdr hdr; 69467d974794SBryan Schumaker int status; 69477d974794SBryan Schumaker 69487d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69497d974794SBryan Schumaker if (status) 69507d974794SBryan Schumaker goto out; 69517d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69527d974794SBryan Schumaker if (status) 69537d974794SBryan Schumaker goto out; 69547d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 69557d974794SBryan Schumaker out: 69567d974794SBryan Schumaker return status; 69577d974794SBryan Schumaker } 69589aeda35fSBryan Schumaker 69599aeda35fSBryan Schumaker /* 69609aeda35fSBryan Schumaker * Decode FREE_STATEID response 69619aeda35fSBryan Schumaker */ 69629aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 69639aeda35fSBryan Schumaker struct xdr_stream *xdr, 69649aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 69659aeda35fSBryan Schumaker { 69669aeda35fSBryan Schumaker struct compound_hdr hdr; 69679aeda35fSBryan Schumaker int status; 69689aeda35fSBryan Schumaker 69699aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69709aeda35fSBryan Schumaker if (status) 69719aeda35fSBryan Schumaker goto out; 69729aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69739aeda35fSBryan Schumaker if (status) 69749aeda35fSBryan Schumaker goto out; 69759aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 69769aeda35fSBryan Schumaker out: 69779aeda35fSBryan Schumaker return status; 69789aeda35fSBryan Schumaker } 697999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 698099fe60d0SBenny Halevy 6981573c4e1eSChuck Lever /** 6982573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 6983573c4e1eSChuck Lever * the local page cache. 6984573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 6985573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 6986573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 6987573c4e1eSChuck Lever * 6988573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 6989573c4e1eSChuck Lever * returned. 6990573c4e1eSChuck Lever * 6991573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 6992573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 6993573c4e1eSChuck Lever * on a directory already in our cache. 6994573c4e1eSChuck Lever */ 6995573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 6996573c4e1eSChuck Lever int plus) 69971da177e4SLinus Torvalds { 6998dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 69991da177e4SLinus Torvalds uint32_t len; 7000babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7001babddc72SBryan Schumaker if (unlikely(!p)) 7002babddc72SBryan Schumaker goto out_overflow; 7003c08e76d0SChuck Lever if (*p == xdr_zero) { 7004babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7005babddc72SBryan Schumaker if (unlikely(!p)) 7006babddc72SBryan Schumaker goto out_overflow; 7007c08e76d0SChuck Lever if (*p == xdr_zero) 7008573c4e1eSChuck Lever return -EAGAIN; 70091da177e4SLinus Torvalds entry->eof = 1; 7010573c4e1eSChuck Lever return -EBADCOOKIE; 70111da177e4SLinus Torvalds } 70121da177e4SLinus Torvalds 7013babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7014babddc72SBryan Schumaker if (unlikely(!p)) 7015babddc72SBryan Schumaker goto out_overflow; 70161da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 70171da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7018c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7019babddc72SBryan Schumaker 70209af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7021babddc72SBryan Schumaker if (unlikely(!p)) 7022babddc72SBryan Schumaker goto out_overflow; 70231da177e4SLinus Torvalds entry->name = (const char *) p; 70241da177e4SLinus Torvalds 70251da177e4SLinus Torvalds /* 70261da177e4SLinus Torvalds * In case the server doesn't return an inode number, 70271da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 70281da177e4SLinus Torvalds * since glibc seems to choke on it...) 70291da177e4SLinus Torvalds */ 70301da177e4SLinus Torvalds entry->ino = 1; 70314f082222STrond Myklebust entry->fattr->valid = 0; 70321da177e4SLinus Torvalds 70339af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7034babddc72SBryan Schumaker goto out_overflow; 70359af8c222STrond Myklebust 70369af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 7037babddc72SBryan Schumaker goto out_overflow; 70389af8c222STrond Myklebust 7039573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 70408b7e3f49STrond Myklebust NULL, entry->server) < 0) 7041babddc72SBryan Schumaker goto out_overflow; 704228331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 704328331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 704428331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 704582f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 70469af8c222STrond Myklebust 70470b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 70480b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 70490b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 70500b26a0bfSTrond Myklebust 7051573c4e1eSChuck Lever return 0; 7052babddc72SBryan Schumaker 7053babddc72SBryan Schumaker out_overflow: 7054babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7055573c4e1eSChuck Lever return -EAGAIN; 70561da177e4SLinus Torvalds } 70571da177e4SLinus Torvalds 70581da177e4SLinus Torvalds /* 70591da177e4SLinus Torvalds * We need to translate between nfs status return values and 70601da177e4SLinus Torvalds * the local errno values which may not be the same. 70611da177e4SLinus Torvalds */ 70621da177e4SLinus Torvalds static struct { 70631da177e4SLinus Torvalds int stat; 70641da177e4SLinus Torvalds int errno; 70651da177e4SLinus Torvalds } nfs_errtbl[] = { 70661da177e4SLinus Torvalds { NFS4_OK, 0 }, 7067856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7068856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7069856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7070856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7071856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7072856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7073856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7074856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7075856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7076856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7077856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7078856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7079856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7080856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7081856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7082856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7083856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7084856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7085856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7086856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7087856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7088856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7089fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7090856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7091856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7092856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7093856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7094856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7095856dff3dSBenny Halevy { -1, -EIO } 70961da177e4SLinus Torvalds }; 70971da177e4SLinus Torvalds 70981da177e4SLinus Torvalds /* 70991da177e4SLinus Torvalds * Convert an NFS error code to a local one. 71001da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 71011da177e4SLinus Torvalds */ 71021da177e4SLinus Torvalds static int 71030a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 71041da177e4SLinus Torvalds { 71051da177e4SLinus Torvalds int i; 71061da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 71071da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 71081da177e4SLinus Torvalds return nfs_errtbl[i].errno; 71091da177e4SLinus Torvalds } 71101da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 71111da177e4SLinus Torvalds /* The server is looney tunes. */ 7112fdcb4577STrond Myklebust return -EREMOTEIO; 71131da177e4SLinus Torvalds } 71141da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 71151da177e4SLinus Torvalds * handle it. 71161da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 71171da177e4SLinus Torvalds * not conflict with native Linux error codes. 71181da177e4SLinus Torvalds */ 7119856dff3dSBenny Halevy return -stat; 71201da177e4SLinus Torvalds } 71211da177e4SLinus Torvalds 71221da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 71231da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 71241da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 71259f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7126bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 71272bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 71282bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7129cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7130cc0175c1SChuck Lever .p_name = #proc, \ 71311da177e4SLinus Torvalds } 71321da177e4SLinus Torvalds 71331da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 71341da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 71351da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 71361da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 71371da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 71381da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 71391da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 71401da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 71411da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 71421da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 71431da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 71441da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 71451da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 71461da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 71471da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 71481da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 71491da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 71501da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 71511da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 71521da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 71531da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 71541da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 71551da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 71561da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 71571da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 71581da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 71591da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 71601da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 71611da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 71621da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 71631da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 71641da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7165029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 716623ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7167683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7168d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 71695a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 717099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 717199fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7172fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 71730f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7174fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 71752050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 717618019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7177b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7178b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7179863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7180cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7181fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 71827d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 71839aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 71847f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 718599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 71861da177e4SLinus Torvalds }; 71871da177e4SLinus Torvalds 7188a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 71891da177e4SLinus Torvalds .number = 4, 7190e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 71911da177e4SLinus Torvalds .procs = nfs4_procedures 71921da177e4SLinus Torvalds }; 71931da177e4SLinus Torvalds 71941da177e4SLinus Torvalds /* 71951da177e4SLinus Torvalds * Local variables: 71961da177e4SLinus Torvalds * c-basic-offset: 8 71971da177e4SLinus Torvalds * End: 71981da177e4SLinus Torvalds */ 7199