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> 56f092075dSChuck Lever 574ce79717STrond Myklebust #include "nfs4_fs.h" 584882ef72SAlexandros Batsakis #include "internal.h" 59b1f69b75SAndy Adamson #include "pnfs.h" 60f092075dSChuck Lever #include "netns.h" 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 651da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 661da177e4SLinus Torvalds 670a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 681da177e4SLinus Torvalds 691da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 701da177e4SLinus Torvalds #ifdef DEBUG 711da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 721da177e4SLinus Torvalds #else 731da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 741da177e4SLinus Torvalds #endif 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds /* lock,open owner id: 779f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 781da177e4SLinus Torvalds */ 7995b72eb0STrond Myklebust #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) 80d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 819104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 821da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 831da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 841da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 851da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 869104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 879104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 889104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 899104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 901da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 911da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 921da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 931da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 941da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 951da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 961da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 971da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 98e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 9996928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 1001da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 1011da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 102bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 103bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 10488034c3dSAndy Adamson /* We support only one layout type per file system */ 10588034c3dSAndy Adamson #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) 10696928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 10796928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 10888034c3dSAndy Adamson 3 + 3 + 3 + nfs4_owner_maxsz + \ 10988034c3dSAndy Adamson nfs4_group_maxsz + decode_mdsthreshold_maxsz)) 11096928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 11196928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 11296928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1139104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1149104a55dSTrond Myklebust 1 + 2 + 1 + \ 1159104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1169104a55dSTrond Myklebust nfs4_group_maxsz + \ 1179104a55dSTrond Myklebust 4 + 4) 1181da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1191da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 12056ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 12156ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1222f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 123dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 124dae100c2SFred Isaman * layout types will be returned. 125dae100c2SFred Isaman */ 126dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 127dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1281da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1291da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1301da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1311da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 132cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 133cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 134cc38bac3SChuck Lever 1 /* sc_prog */ + \ 135cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 136cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 137cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1381da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1391da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1401da177e4SLinus Torvalds 2 + \ 1411da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1421da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1431da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1441da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1451da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1461da177e4SLinus Torvalds (op_decode_hdr_maxsz) 147e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 148e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1492cebf828STrond Myklebust #define encode_share_access_maxsz \ 1502cebf828STrond Myklebust (2) 1514882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1522cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1532cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1542cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1552cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1562cebf828STrond Myklebust open_owner_id_maxsz + \ 1572cebf828STrond Myklebust encode_opentype_maxsz + \ 1582cebf828STrond Myklebust encode_claim_null_maxsz) 1592cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1609104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1612cebf828STrond Myklebust decode_ace_maxsz) 1622cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1632cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1649104a55dSTrond Myklebust decode_stateid_maxsz + \ 1652cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1662cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1672cebf828STrond Myklebust decode_delegation_maxsz) 1689104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1699104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1709104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1719104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1729104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1739104a55dSTrond Myklebust decode_stateid_maxsz) 1749104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1759104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1769104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1779104a55dSTrond Myklebust encode_share_access_maxsz) 1789104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1799104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1809104a55dSTrond Myklebust decode_stateid_maxsz) 1819104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1829104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1839104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1849104a55dSTrond Myklebust decode_stateid_maxsz) 1859104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1869104a55dSTrond Myklebust encode_stateid_maxsz + \ 1879104a55dSTrond Myklebust encode_attrs_maxsz) 1889104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1909104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1919104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1929104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1939104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1949104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1959104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1969104a55dSTrond Myklebust decode_verifier_maxsz) 1979104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1989104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1999104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2009104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2019104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2029104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2039104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2049104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2059104a55dSTrond Myklebust decode_verifier_maxsz) 2061da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2071da177e4SLinus Torvalds nfs4_name_maxsz) 2086ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2096ce18391SBenny Halevy decode_change_info_maxsz) 2101da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2111da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2126ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2136ce18391SBenny Halevy decode_change_info_maxsz + \ 2146ce18391SBenny Halevy decode_change_info_maxsz) 2151da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2161da177e4SLinus Torvalds nfs4_name_maxsz) 2176ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 218daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2199104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2209104a55dSTrond Myklebust 7 + \ 221daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 222daccbdedSTrond Myklebust encode_lockowner_maxsz) 2239104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2249104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2259104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2269104a55dSTrond Myklebust decode_lock_denied_maxsz) 227daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 228daccbdedSTrond Myklebust encode_lockowner_maxsz) 2299104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2309104a55dSTrond Myklebust decode_lock_denied_maxsz) 2319104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2329104a55dSTrond Myklebust encode_stateid_maxsz + \ 2339104a55dSTrond Myklebust 4) 2349104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2359104a55dSTrond Myklebust decode_stateid_maxsz) 236d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 237d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 238d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 239d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 240d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2419104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2429104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2431da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2441da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 24594a6d753SChuck Lever 1 + \ 24696928206SJ. Bruce Fields nfs4_fattr_maxsz) 2471da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2481da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2499104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2509104a55dSTrond Myklebust encode_attrs_maxsz) 2512cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2522cebf828STrond Myklebust decode_change_info_maxsz + \ 2532cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2549104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2559104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2561da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2571da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2589104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2599104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2609104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2619104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2629104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2639104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 264e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 265e6889620STrond Myklebust (encode_getattr_maxsz) 266e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 267e6889620STrond Myklebust (0) 2685a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2691650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2709b7b9fccSAndy Adamson 2719b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 272fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 273d751f748SJim Rees #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ 274d751f748SJim Rees sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) 275fc931582SAndy Adamson 27699fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 27799fe60d0SBenny Halevy encode_verifier_maxsz + \ 27899fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 27999fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 28099fe60d0SBenny Halevy 1 /* flags */ + \ 28199fe60d0SBenny Halevy 1 /* spa_how */ + \ 28299fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 283db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 284db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 285db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 286db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 287d751f748SJim Rees XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 288db8ac8baSWeston Andros Adamson 3 /* nii_date */) 28999fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 29099fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 29199fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 29299fe60d0SBenny Halevy 1 /* eir_flags */ + \ 29399fe60d0SBenny Halevy 1 /* spr_how */ + \ 29499fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 29599fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 29699fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 29799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 29899fe60d0SBenny Halevy /* eir_server_scope<> */ \ 29999fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 30099fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 3017d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3027d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3037d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3047d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3057d2ed9acSWeston Andros Adamson 3 /* nii_date */) 306fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 307fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 308fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 309fc931582SAndy Adamson 1 /* ca_rdma_ird */) 310fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 311fc931582SAndy Adamson 2 /* csa_clientid */ + \ 312fc931582SAndy Adamson 1 /* csa_sequence */ + \ 313fc931582SAndy Adamson 1 /* csa_flags */ + \ 314fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 315fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 316fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 317fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 318fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 319fc931582SAndy Adamson 1 /* stamp */ + \ 320fc931582SAndy Adamson 1 /* machinename.len */ + \ 321fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 322fc931582SAndy Adamson 1 /* uid */ + \ 323fc931582SAndy Adamson 1 /* gid */ + \ 324fc931582SAndy Adamson 1 /* gids.len (0) */) 325fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 326fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 327fc931582SAndy Adamson 1 /* csr_sequence */ + \ 328fc931582SAndy Adamson 1 /* csr_flags */ + \ 329fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 330fc931582SAndy Adamson decode_channel_attrs_maxsz) 3317c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3327c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3337c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3347c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3357c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3367c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3377c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3387c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3397c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3407c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3410f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3420f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 34366245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 34466245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 345fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 346fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 347fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 348fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 34918019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 35018019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3517f11d8d3SAndy Adamson #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ 3527f11d8d3SAndy Adamson encode_verifier_maxsz) 3537f11d8d3SAndy Adamson #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ 3547f11d8d3SAndy Adamson 2 /* nfs_cookie4 gdlr_cookie */ + \ 3557f11d8d3SAndy Adamson decode_verifier_maxsz \ 3567f11d8d3SAndy Adamson /* verifier4 gdlr_verifier */ + \ 3577f11d8d3SAndy Adamson 1 /* gdlr_deviceid_list count */ + \ 3587f11d8d3SAndy Adamson XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ 3597f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE) \ 3607f11d8d3SAndy Adamson /* gdlr_deviceid_list */ + \ 3617f11d8d3SAndy Adamson 1 /* bool gdlr_eof */) 362b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 363b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 364b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 365b1f69b75SAndy Adamson 1 /* layout type */ + \ 366b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 367b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 368b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 369b1f69b75SAndy Adamson 1 /* notification bitmap */) 370b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 371b1f69b75SAndy Adamson encode_stateid_maxsz) 372b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 373b1f69b75SAndy Adamson decode_stateid_maxsz + \ 374b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 375863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 376863a3c6cSAndy Adamson 2 /* offset */ + \ 377863a3c6cSAndy Adamson 2 /* length */ + \ 378863a3c6cSAndy Adamson 1 /* reclaim */ + \ 379863a3c6cSAndy Adamson encode_stateid_maxsz + \ 380863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 381863a3c6cSAndy Adamson 2 /* last byte written */ + \ 382863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 383863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 384863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 385863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 386cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 387cbe82603SBenny Halevy encode_stateid_maxsz + \ 388cbe82603SBenny Halevy 1 /* FIXME: opaque lrf_body always empty at the moment */) 389cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 390cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 391fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 392fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 3937d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 3947d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3957d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 3969aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 3979aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3989aeda35fSBryan Schumaker #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1) 3999b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 4009b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 4019b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 4029b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4039b7b9fccSAndy Adamson 4041da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4051da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4061da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4079b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4081da177e4SLinus Torvalds encode_putfh_maxsz + \ 4099104a55dSTrond Myklebust encode_read_maxsz) 4101da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4119b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4121da177e4SLinus Torvalds decode_putfh_maxsz + \ 4139104a55dSTrond Myklebust decode_read_maxsz) 4141da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4159b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4161da177e4SLinus Torvalds encode_putfh_maxsz + \ 4179104a55dSTrond Myklebust encode_readlink_maxsz) 4181da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4199b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4201da177e4SLinus Torvalds decode_putfh_maxsz + \ 4219104a55dSTrond Myklebust decode_readlink_maxsz) 4221da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4241da177e4SLinus Torvalds encode_putfh_maxsz + \ 4259104a55dSTrond Myklebust encode_readdir_maxsz) 4261da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4281da177e4SLinus Torvalds decode_putfh_maxsz + \ 4299104a55dSTrond Myklebust decode_readdir_maxsz) 4301da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4319b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4321da177e4SLinus Torvalds encode_putfh_maxsz + \ 4339104a55dSTrond Myklebust encode_write_maxsz + \ 4344f9838c7STrond Myklebust encode_getattr_maxsz) 4351da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4369b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4371da177e4SLinus Torvalds decode_putfh_maxsz + \ 4389104a55dSTrond Myklebust decode_write_maxsz + \ 4394f9838c7STrond Myklebust decode_getattr_maxsz) 4401da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4419b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4421da177e4SLinus Torvalds encode_putfh_maxsz + \ 4438582715eSTrond Myklebust encode_commit_maxsz) 4441da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4459b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4461da177e4SLinus Torvalds decode_putfh_maxsz + \ 4478582715eSTrond Myklebust decode_commit_maxsz) 4481da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4499b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4501da177e4SLinus Torvalds encode_putfh_maxsz + \ 4512cebf828STrond Myklebust encode_open_maxsz + \ 4526168f62cSWeston Andros Adamson encode_access_maxsz + \ 4532cebf828STrond Myklebust encode_getfh_maxsz + \ 4542cebf828STrond Myklebust encode_getattr_maxsz) 4551da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4569b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4571da177e4SLinus Torvalds decode_putfh_maxsz + \ 4582cebf828STrond Myklebust decode_open_maxsz + \ 4596168f62cSWeston Andros Adamson decode_access_maxsz + \ 4602cebf828STrond Myklebust decode_getfh_maxsz + \ 4612cebf828STrond Myklebust decode_getattr_maxsz) 4621da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4631da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4641da177e4SLinus Torvalds encode_putfh_maxsz + \ 4659104a55dSTrond Myklebust encode_open_confirm_maxsz) 4669104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4679104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4681da177e4SLinus Torvalds decode_putfh_maxsz + \ 4699104a55dSTrond Myklebust decode_open_confirm_maxsz) 4701da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4721da177e4SLinus Torvalds encode_putfh_maxsz + \ 4732cebf828STrond Myklebust encode_open_maxsz + \ 4746168f62cSWeston Andros Adamson encode_access_maxsz + \ 4752cebf828STrond Myklebust encode_getattr_maxsz) 4761da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4781da177e4SLinus Torvalds decode_putfh_maxsz + \ 4792cebf828STrond Myklebust decode_open_maxsz + \ 4806168f62cSWeston Andros Adamson decode_access_maxsz + \ 4812cebf828STrond Myklebust decode_getattr_maxsz) 4821da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4831da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4849b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4851da177e4SLinus Torvalds encode_putfh_maxsz + \ 4869104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 487516a6af6STrond Myklebust encode_getattr_maxsz) 4881da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4891da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4909b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4911da177e4SLinus Torvalds decode_putfh_maxsz + \ 4929104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 493516a6af6STrond Myklebust decode_getattr_maxsz) 4941da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4959b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4961da177e4SLinus Torvalds encode_putfh_maxsz + \ 4979104a55dSTrond Myklebust encode_close_maxsz + \ 498516a6af6STrond Myklebust encode_getattr_maxsz) 4991da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 5009b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5011da177e4SLinus Torvalds decode_putfh_maxsz + \ 5029104a55dSTrond Myklebust decode_close_maxsz + \ 503516a6af6STrond Myklebust decode_getattr_maxsz) 5041da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5061da177e4SLinus Torvalds encode_putfh_maxsz + \ 5079104a55dSTrond Myklebust encode_setattr_maxsz + \ 5081da177e4SLinus Torvalds encode_getattr_maxsz) 5091da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5109b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5111da177e4SLinus Torvalds decode_putfh_maxsz + \ 5129104a55dSTrond Myklebust decode_setattr_maxsz + \ 5139104a55dSTrond Myklebust decode_getattr_maxsz) 5141da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5159b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5161da177e4SLinus Torvalds encode_putfh_maxsz + \ 5171da177e4SLinus Torvalds encode_fsinfo_maxsz) 5181da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5199b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5201da177e4SLinus Torvalds decode_putfh_maxsz + \ 5211da177e4SLinus Torvalds decode_fsinfo_maxsz) 5221da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5231da177e4SLinus Torvalds encode_renew_maxsz) 5241da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5251da177e4SLinus Torvalds decode_renew_maxsz) 5261da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5271da177e4SLinus Torvalds encode_setclientid_maxsz) 5281da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5291da177e4SLinus Torvalds decode_setclientid_maxsz) 5301da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5311da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5321da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 5331da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5341da177e4SLinus Torvalds encode_fsinfo_maxsz) 5351da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5361da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5371da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 5381da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5391da177e4SLinus Torvalds decode_fsinfo_maxsz) 5401da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5419b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5421da177e4SLinus Torvalds encode_putfh_maxsz + \ 5439104a55dSTrond Myklebust encode_lock_maxsz) 5441da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5459b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5461da177e4SLinus Torvalds decode_putfh_maxsz + \ 5479104a55dSTrond Myklebust decode_lock_maxsz) 5481da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5499b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5501da177e4SLinus Torvalds encode_putfh_maxsz + \ 5519104a55dSTrond Myklebust encode_lockt_maxsz) 5529104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5549104a55dSTrond Myklebust decode_putfh_maxsz + \ 5559104a55dSTrond Myklebust decode_lockt_maxsz) 5561da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5581da177e4SLinus Torvalds encode_putfh_maxsz + \ 5599104a55dSTrond Myklebust encode_locku_maxsz) 5601da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5621da177e4SLinus Torvalds decode_putfh_maxsz + \ 5639104a55dSTrond Myklebust decode_locku_maxsz) 564d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 565d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 566d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 567d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 568d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 569d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5701da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5721da177e4SLinus Torvalds encode_putfh_maxsz + \ 57376b32999STrond Myklebust encode_access_maxsz + \ 57476b32999STrond Myklebust encode_getattr_maxsz) 5751da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5769b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5771da177e4SLinus Torvalds decode_putfh_maxsz + \ 57876b32999STrond Myklebust decode_access_maxsz + \ 57976b32999STrond Myklebust decode_getattr_maxsz) 5801da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5821da177e4SLinus Torvalds encode_putfh_maxsz + \ 5831da177e4SLinus Torvalds encode_getattr_maxsz) 5841da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5859b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5861da177e4SLinus Torvalds decode_putfh_maxsz + \ 5871da177e4SLinus Torvalds decode_getattr_maxsz) 5881da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5901da177e4SLinus Torvalds encode_putfh_maxsz + \ 5911da177e4SLinus Torvalds encode_lookup_maxsz + \ 5921da177e4SLinus Torvalds encode_getattr_maxsz + \ 5931da177e4SLinus Torvalds encode_getfh_maxsz) 5941da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5961da177e4SLinus Torvalds decode_putfh_maxsz + \ 597e6889620STrond Myklebust decode_lookup_maxsz + \ 5981da177e4SLinus Torvalds decode_getattr_maxsz + \ 5991da177e4SLinus Torvalds decode_getfh_maxsz) 6001da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 6019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6021da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6031da177e4SLinus Torvalds encode_getattr_maxsz + \ 6041da177e4SLinus Torvalds encode_getfh_maxsz) 6051da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6069b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6071da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6081da177e4SLinus Torvalds decode_getattr_maxsz + \ 6091da177e4SLinus Torvalds decode_getfh_maxsz) 6101da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6121da177e4SLinus Torvalds encode_putfh_maxsz + \ 613778d2817STrond Myklebust encode_remove_maxsz) 6141da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6159b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6161da177e4SLinus Torvalds decode_putfh_maxsz + \ 617778d2817STrond Myklebust decode_remove_maxsz) 6181da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6201da177e4SLinus Torvalds encode_putfh_maxsz + \ 6211da177e4SLinus Torvalds encode_savefh_maxsz + \ 6221da177e4SLinus Torvalds encode_putfh_maxsz + \ 623778d2817STrond Myklebust encode_rename_maxsz) 6241da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6261da177e4SLinus Torvalds decode_putfh_maxsz + \ 6271da177e4SLinus Torvalds decode_savefh_maxsz + \ 6281da177e4SLinus Torvalds decode_putfh_maxsz + \ 629778d2817STrond Myklebust decode_rename_maxsz) 6301da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6319b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6321da177e4SLinus Torvalds encode_putfh_maxsz + \ 6331da177e4SLinus Torvalds encode_savefh_maxsz + \ 6341da177e4SLinus Torvalds encode_putfh_maxsz + \ 63591ba2eeeSTrond Myklebust encode_link_maxsz + \ 63691ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 637a9f6991bSTrond Myklebust encode_getattr_maxsz) 6381da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6401da177e4SLinus Torvalds decode_putfh_maxsz + \ 6411da177e4SLinus Torvalds decode_savefh_maxsz + \ 6421da177e4SLinus Torvalds decode_putfh_maxsz + \ 64391ba2eeeSTrond Myklebust decode_link_maxsz + \ 64491ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 64591ba2eeeSTrond Myklebust decode_getattr_maxsz) 6461da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6479b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6481da177e4SLinus Torvalds encode_putfh_maxsz + \ 6491da177e4SLinus Torvalds encode_symlink_maxsz + \ 6501da177e4SLinus Torvalds encode_getattr_maxsz + \ 6511da177e4SLinus Torvalds encode_getfh_maxsz) 6521da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6541da177e4SLinus Torvalds decode_putfh_maxsz + \ 6551da177e4SLinus Torvalds decode_symlink_maxsz + \ 6561da177e4SLinus Torvalds decode_getattr_maxsz + \ 6571da177e4SLinus Torvalds decode_getfh_maxsz) 6581da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6601da177e4SLinus Torvalds encode_putfh_maxsz + \ 6611da177e4SLinus Torvalds encode_create_maxsz + \ 66256ae19f3STrond Myklebust encode_getfh_maxsz + \ 66356ae19f3STrond Myklebust encode_getattr_maxsz) 6641da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6659b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6661da177e4SLinus Torvalds decode_putfh_maxsz + \ 6671da177e4SLinus Torvalds decode_create_maxsz + \ 66856ae19f3STrond Myklebust decode_getfh_maxsz + \ 66956ae19f3STrond Myklebust decode_getattr_maxsz) 6701da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6721da177e4SLinus Torvalds encode_putfh_maxsz + \ 6731da177e4SLinus Torvalds encode_getattr_maxsz) 6741da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6759b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6761da177e4SLinus Torvalds decode_putfh_maxsz + \ 6771da177e4SLinus Torvalds decode_getattr_maxsz) 6781da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6799b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6801da177e4SLinus Torvalds encode_putfh_maxsz + \ 6819104a55dSTrond Myklebust encode_statfs_maxsz) 6821da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6839b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6841da177e4SLinus Torvalds decode_putfh_maxsz + \ 6859104a55dSTrond Myklebust decode_statfs_maxsz) 6861da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6879b7b9fccSAndy Adamson encode_sequence_maxsz + \ 688ab91f264STrond Myklebust encode_putfh_maxsz + \ 6891da177e4SLinus Torvalds encode_getattr_maxsz) 6901da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 692ab91f264STrond Myklebust decode_putfh_maxsz + \ 6931da177e4SLinus Torvalds decode_getattr_maxsz) 6941da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6959b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6961da177e4SLinus Torvalds encode_putfh_maxsz + \ 697fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 698fa178f29STrond Myklebust encode_getattr_maxsz) 6991da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7009b7b9fccSAndy Adamson decode_sequence_maxsz + \ 701fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 702fa178f29STrond Myklebust decode_getattr_maxsz) 703029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7049b7b9fccSAndy Adamson encode_sequence_maxsz + \ 705029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7069104a55dSTrond Myklebust encode_getacl_maxsz) 707029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 709029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7109104a55dSTrond Myklebust decode_getacl_maxsz) 71123ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7129b7b9fccSAndy Adamson encode_sequence_maxsz + \ 71323ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7149104a55dSTrond Myklebust encode_setacl_maxsz) 71523ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 71723ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7189104a55dSTrond Myklebust decode_setacl_maxsz) 719683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 720683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 722683b57b4STrond Myklebust encode_putfh_maxsz + \ 723e6889620STrond Myklebust encode_lookup_maxsz + \ 724e6889620STrond Myklebust encode_fs_locations_maxsz) 725683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 726683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 728683b57b4STrond Myklebust decode_putfh_maxsz + \ 729e6889620STrond Myklebust decode_lookup_maxsz + \ 730e6889620STrond Myklebust decode_fs_locations_maxsz) 7315a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7325a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7335a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7345a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7355a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7365a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7375a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7385a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 73999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7407c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7417c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7427c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7437c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7447c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7457c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 74699fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 74799fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 74899fe60d0SBenny Halevy encode_exchange_id_maxsz) 74999fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 75099fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 75199fe60d0SBenny Halevy decode_exchange_id_maxsz) 752fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 753fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 754fc931582SAndy Adamson encode_create_session_maxsz) 755fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 756fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 757fc931582SAndy Adamson decode_create_session_maxsz) 7580f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7590f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7600f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7610f3e66c6SAndy Adamson decode_destroy_session_maxsz) 76266245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 76366245539STrond Myklebust encode_destroy_clientid_maxsz) 76466245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 76566245539STrond Myklebust decode_destroy_clientid_maxsz) 766fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 767fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 768fc01cea9SAndy Adamson encode_sequence_maxsz) 769fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 770fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 771fc01cea9SAndy Adamson decode_sequence_maxsz) 7722050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7732050f0ccSAndy Adamson encode_sequence_maxsz + \ 7742050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7752050f0ccSAndy Adamson encode_fsinfo_maxsz) 7762050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7772050f0ccSAndy Adamson decode_sequence_maxsz + \ 7782050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7792050f0ccSAndy Adamson decode_fsinfo_maxsz) 78018019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 78118019753SRicardo Labiaga encode_sequence_maxsz + \ 78218019753SRicardo Labiaga encode_reclaim_complete_maxsz) 78318019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 78418019753SRicardo Labiaga decode_sequence_maxsz + \ 78518019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7867f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 7877f11d8d3SAndy Adamson encode_sequence_maxsz + \ 7887f11d8d3SAndy Adamson encode_putfh_maxsz + \ 7897f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 7907f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 7917f11d8d3SAndy Adamson decode_sequence_maxsz + \ 7927f11d8d3SAndy Adamson decode_putfh_maxsz + \ 7937f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 794b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 795b1f69b75SAndy Adamson encode_sequence_maxsz +\ 796b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 797b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 798b1f69b75SAndy Adamson decode_sequence_maxsz + \ 799b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 800b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 801b1f69b75SAndy Adamson encode_sequence_maxsz + \ 802b1f69b75SAndy Adamson encode_putfh_maxsz + \ 803b1f69b75SAndy Adamson encode_layoutget_maxsz) 804b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 805b1f69b75SAndy Adamson decode_sequence_maxsz + \ 806b1f69b75SAndy Adamson decode_putfh_maxsz + \ 807b1f69b75SAndy Adamson decode_layoutget_maxsz) 808863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 809863a3c6cSAndy Adamson encode_sequence_maxsz +\ 810863a3c6cSAndy Adamson encode_putfh_maxsz + \ 811863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 812863a3c6cSAndy Adamson encode_getattr_maxsz) 813863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 814863a3c6cSAndy Adamson decode_sequence_maxsz + \ 815863a3c6cSAndy Adamson decode_putfh_maxsz + \ 816863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 817863a3c6cSAndy Adamson decode_getattr_maxsz) 818cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 819cbe82603SBenny Halevy encode_sequence_maxsz + \ 820cbe82603SBenny Halevy encode_putfh_maxsz + \ 821cbe82603SBenny Halevy encode_layoutreturn_maxsz) 822cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 823cbe82603SBenny Halevy decode_sequence_maxsz + \ 824cbe82603SBenny Halevy decode_putfh_maxsz + \ 825cbe82603SBenny Halevy decode_layoutreturn_maxsz) 826fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 827fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 828fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 829fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 830fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 831fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 832fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 833fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8347d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8357d974794SBryan Schumaker encode_sequence_maxsz + \ 8367d974794SBryan Schumaker encode_test_stateid_maxsz) 8377d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8387d974794SBryan Schumaker decode_sequence_maxsz + \ 8397d974794SBryan Schumaker decode_test_stateid_maxsz) 8409aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8419aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8429aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8439aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8449aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8459aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8462449ea2eSAlexandros Batsakis 8472449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8482449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8492449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8502449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8512449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8522449ea2eSAlexandros Batsakis XDR_UNIT); 8532449ea2eSAlexandros Batsakis 8542449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8552449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8562449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8572449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8582449ea2eSAlexandros Batsakis XDR_UNIT); 85999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8601da177e4SLinus Torvalds 861bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 862bca79478STrond Myklebust [NF4BAD] = 0, 863bca79478STrond Myklebust [NF4REG] = S_IFREG, 864bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 865bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 866bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 867bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 868bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 869bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 870bca79478STrond Myklebust [NF4ATTRDIR] = 0, 871bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8721da177e4SLinus Torvalds }; 8731da177e4SLinus Torvalds 8741da177e4SLinus Torvalds struct compound_hdr { 8751da177e4SLinus Torvalds int32_t status; 8761da177e4SLinus Torvalds uint32_t nops; 877d017931cSAndy Adamson __be32 * nops_p; 8781da177e4SLinus Torvalds uint32_t taglen; 8791da177e4SLinus Torvalds char * tag; 8800c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 88166cc0429SBenny Halevy u32 minorversion; 8821da177e4SLinus Torvalds }; 8831da177e4SLinus Torvalds 88413c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 88513c65ce9SBenny Halevy { 88613c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 88713c65ce9SBenny Halevy BUG_ON(!p); 88813c65ce9SBenny Halevy return p; 88913c65ce9SBenny Halevy } 8901da177e4SLinus Torvalds 891cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 892cb17e556STrond Myklebust { 893cb17e556STrond Myklebust __be32 *p; 894cb17e556STrond Myklebust 895cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 896cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 897cb17e556STrond Myklebust } 898cb17e556STrond Myklebust 8991da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9001da177e4SLinus Torvalds { 9018687b63aSAl Viro __be32 *p; 9021da177e4SLinus Torvalds 9036fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 9041da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds 9074ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9084ade9821STrond Myklebust { 9094ade9821STrond Myklebust __be32 *p; 9104ade9821STrond Myklebust 9114ade9821STrond Myklebust p = reserve_space(xdr, 4); 9124ade9821STrond Myklebust *p = cpu_to_be32(n); 9134ade9821STrond Myklebust } 9144ade9821STrond Myklebust 915ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 916ff2eb681STrond Myklebust { 917ff2eb681STrond Myklebust __be32 *p; 918ff2eb681STrond Myklebust 919ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 920ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 921ff2eb681STrond Myklebust } 922ff2eb681STrond Myklebust 9234ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9244ade9821STrond Myklebust const struct nfs_seqid *seqid) 9254ade9821STrond Myklebust { 9264ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 9274ade9821STrond Myklebust } 9284ade9821STrond Myklebust 9290c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9300c4e8c18SBenny Halevy struct rpc_rqst *req, 9310c4e8c18SBenny Halevy struct compound_hdr *hdr) 9321da177e4SLinus Torvalds { 9338687b63aSAl Viro __be32 *p; 934a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9350c4e8c18SBenny Halevy 9360c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9370c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9380c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9390c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9401da177e4SLinus Torvalds 9411da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 9426fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9436fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 944e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 945d017931cSAndy Adamson hdr->nops_p = p; 94634558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 947d017931cSAndy Adamson } 948d017931cSAndy Adamson 949ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 950ab19b481STrond Myklebust uint32_t replen, 951ab19b481STrond Myklebust struct compound_hdr *hdr) 952ab19b481STrond Myklebust { 953ab19b481STrond Myklebust encode_uint32(xdr, op); 954ab19b481STrond Myklebust hdr->nops++; 955ab19b481STrond Myklebust hdr->replen += replen; 956ab19b481STrond Myklebust } 957ab19b481STrond Myklebust 958d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 959d017931cSAndy Adamson { 960fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 961d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9621da177e4SLinus Torvalds } 9631da177e4SLinus Torvalds 964ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 965ea9d23f5STrond Myklebust { 9662d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 967ea9d23f5STrond Myklebust } 968ea9d23f5STrond Myklebust 9691da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9701da177e4SLinus Torvalds { 971cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 9721da177e4SLinus Torvalds } 9731da177e4SLinus Torvalds 974cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9751da177e4SLinus Torvalds { 9761da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9771da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9781da177e4SLinus Torvalds int owner_namelen = 0; 9791da177e4SLinus Torvalds int owner_grouplen = 0; 9808687b63aSAl Viro __be32 *p; 9818687b63aSAl Viro __be32 *q; 9821da177e4SLinus Torvalds int len; 9831da177e4SLinus Torvalds uint32_t bmval0 = 0; 9841da177e4SLinus Torvalds uint32_t bmval1 = 0; 9851da177e4SLinus Torvalds 9861da177e4SLinus Torvalds /* 9871da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9881da177e4SLinus Torvalds * In the worst-case, this would be 9891da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9901da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 99123ec6965SJ. Bruce Fields * such as owner/group. 9921da177e4SLinus Torvalds */ 9931da177e4SLinus Torvalds len = 16; 9941da177e4SLinus Torvalds 9951da177e4SLinus Torvalds /* Sigh */ 9961da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9971da177e4SLinus Torvalds len += 8; 9981da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 9991da177e4SLinus Torvalds len += 4; 10001da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 1001e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10021da177e4SLinus Torvalds if (owner_namelen < 0) { 1003fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 10041da177e4SLinus Torvalds iap->ia_uid); 10051da177e4SLinus Torvalds /* XXX */ 10061da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10071da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10081da177e4SLinus Torvalds /* goto out; */ 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10111da177e4SLinus Torvalds } 10121da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1013e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10141da177e4SLinus Torvalds if (owner_grouplen < 0) { 1015fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 10161da177e4SLinus Torvalds iap->ia_gid); 10171da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10181da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10191da177e4SLinus Torvalds /* goto out; */ 10201da177e4SLinus Torvalds } 10211da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10221da177e4SLinus Torvalds } 10231da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 10241da177e4SLinus Torvalds len += 16; 10251da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 10261da177e4SLinus Torvalds len += 4; 10271da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 10281da177e4SLinus Torvalds len += 16; 10291da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 10301da177e4SLinus Torvalds len += 4; 103113c65ce9SBenny Halevy p = reserve_space(xdr, len); 10321da177e4SLinus Torvalds 10331da177e4SLinus Torvalds /* 10341da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 10351da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 10361da177e4SLinus Torvalds */ 1037e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 10381da177e4SLinus Torvalds q = p; 10391da177e4SLinus Torvalds p += 3; 10401da177e4SLinus Torvalds 10411da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 10421da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 1043b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 10441da177e4SLinus Torvalds } 10451da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10461da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1047e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10481da177e4SLinus Torvalds } 10491da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10501da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1051811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10521da177e4SLinus Torvalds } 10531da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10541da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1055811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10561da177e4SLinus Torvalds } 10571da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10581da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1059e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1060e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1061d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1062d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10631da177e4SLinus Torvalds } 10641da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10651da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1066e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10671da177e4SLinus Torvalds } 10681da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10691da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1070e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1071e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1072e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1073e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10741da177e4SLinus Torvalds } 10751da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10761da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1077e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10781da177e4SLinus Torvalds } 10791da177e4SLinus Torvalds 10801da177e4SLinus Torvalds /* 10811da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10821da177e4SLinus Torvalds */ 10831da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1084f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10851da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10861da177e4SLinus Torvalds BUG(); 10871da177e4SLinus Torvalds } 10881da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10891da177e4SLinus Torvalds *q++ = htonl(bmval0); 10901da177e4SLinus Torvalds *q++ = htonl(bmval1); 109134558513SBenny Halevy *q = htonl(len); 10921da177e4SLinus Torvalds 10931da177e4SLinus Torvalds /* out: */ 10941da177e4SLinus Torvalds } 10951da177e4SLinus Torvalds 1096cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10971da177e4SLinus Torvalds { 1098475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1099475d4ba0STrond Myklebust encode_uint32(xdr, access); 11001da177e4SLinus Torvalds } 11011da177e4SLinus Torvalds 1102cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11031da177e4SLinus Torvalds { 1104ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11054ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1106ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 11071da177e4SLinus Torvalds } 11081da177e4SLinus Torvalds 11090b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11101da177e4SLinus Torvalds { 11118687b63aSAl Viro __be32 *p; 11121da177e4SLinus Torvalds 1113475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1114475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1115b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 111634558513SBenny Halevy *p = cpu_to_be32(args->count); 11171da177e4SLinus Torvalds } 11181da177e4SLinus Torvalds 1119cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11201da177e4SLinus Torvalds { 11218687b63aSAl Viro __be32 *p; 11221da177e4SLinus Torvalds 1123475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1124475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11251da177e4SLinus Torvalds 11261da177e4SLinus Torvalds switch (create->ftype) { 11271da177e4SLinus Torvalds case NF4LNK: 112813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 112934558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 113094a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11311da177e4SLinus Torvalds break; 11321da177e4SLinus Torvalds 11331da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 113413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1135e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 113634558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11371da177e4SLinus Torvalds break; 11381da177e4SLinus Torvalds 11391da177e4SLinus Torvalds default: 11401da177e4SLinus Torvalds break; 11411da177e4SLinus Torvalds } 11421da177e4SLinus Torvalds 1143811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1144cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11451da177e4SLinus Torvalds } 11461da177e4SLinus Torvalds 1147cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11481da177e4SLinus Torvalds { 11498687b63aSAl Viro __be32 *p; 11501da177e4SLinus Torvalds 1151475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1152475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1153e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 115434558513SBenny Halevy *p = cpu_to_be32(bitmap); 11551da177e4SLinus Torvalds } 11561da177e4SLinus Torvalds 1157cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11581da177e4SLinus Torvalds { 11598687b63aSAl Viro __be32 *p; 11601da177e4SLinus Torvalds 1161475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1162475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1163e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1164e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 116534558513SBenny Halevy *p = cpu_to_be32(bm1); 11661da177e4SLinus Torvalds } 11671da177e4SLinus Torvalds 1168dae100c2SFred Isaman static void 1169dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1170dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1171dae100c2SFred Isaman struct compound_hdr *hdr) 1172dae100c2SFred Isaman { 1173dae100c2SFred Isaman __be32 *p; 1174dae100c2SFred Isaman 1175ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1176dae100c2SFred Isaman if (bm2) { 1177dae100c2SFred Isaman p = reserve_space(xdr, 16); 1178dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1179dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1180dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1181dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1182dae100c2SFred Isaman } else if (bm1) { 1183dae100c2SFred Isaman p = reserve_space(xdr, 12); 1184dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1185dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1186dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1187dae100c2SFred Isaman } else { 1188dae100c2SFred Isaman p = reserve_space(xdr, 8); 1189dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1190dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1191dae100c2SFred Isaman } 1192dae100c2SFred Isaman } 1193dae100c2SFred Isaman 1194cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11951da177e4SLinus Torvalds { 1196cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1197d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11981da177e4SLinus Torvalds } 11991da177e4SLinus Torvalds 120088034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 12011549210fSTrond Myklebust const u32 *open_bitmap, 120288034c3dSAndy Adamson struct compound_hdr *hdr) 120388034c3dSAndy Adamson { 120488034c3dSAndy Adamson encode_getattr_three(xdr, 12051549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12061549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12071549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 120888034c3dSAndy Adamson hdr); 120988034c3dSAndy Adamson } 121088034c3dSAndy Adamson 1211cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12121da177e4SLinus Torvalds { 1213dae100c2SFred Isaman encode_getattr_three(xdr, 1214dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1215dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1216dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1217dae100c2SFred Isaman hdr); 12181da177e4SLinus Torvalds } 12191da177e4SLinus Torvalds 1220cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1221830b8e33SManoj Naik { 1222cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1223cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1224830b8e33SManoj Naik } 1225830b8e33SManoj Naik 1226cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12271da177e4SLinus Torvalds { 1228ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12291da177e4SLinus Torvalds } 12301da177e4SLinus Torvalds 1231cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12321da177e4SLinus Torvalds { 1233ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12346fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12351da177e4SLinus Torvalds } 12361da177e4SLinus Torvalds 1237911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1238911d1aafSTrond Myklebust { 1239f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1240911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1241911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1242911d1aafSTrond Myklebust } 1243911d1aafSTrond Myklebust 1244911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1245911d1aafSTrond Myklebust { 1246911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1247911d1aafSTrond Myklebust return ~(uint64_t)0; 1248911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1249911d1aafSTrond Myklebust } 1250911d1aafSTrond Myklebust 1251daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1252daccbdedSTrond Myklebust { 1253daccbdedSTrond Myklebust __be32 *p; 1254daccbdedSTrond Myklebust 1255d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1256daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1257d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1258daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1259d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1260daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1261daccbdedSTrond Myklebust } 1262daccbdedSTrond Myklebust 12631da177e4SLinus Torvalds /* 12641da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12651da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12661da177e4SLinus Torvalds */ 1267cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12681da177e4SLinus Torvalds { 12698687b63aSAl Viro __be32 *p; 12701da177e4SLinus Torvalds 1271475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1272475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1273e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1274e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1275b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1276b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 127734558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1278911d1aafSTrond Myklebust if (args->new_lock_owner){ 12794ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1280ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->open_stateid); 12814ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1282daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12831da177e4SLinus Torvalds } 12841da177e4SLinus Torvalds else { 1285ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->lock_stateid); 12864ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 12871da177e4SLinus Torvalds } 12881da177e4SLinus Torvalds } 12891da177e4SLinus Torvalds 1290cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12911da177e4SLinus Torvalds { 12928687b63aSAl Viro __be32 *p; 12931da177e4SLinus Torvalds 1294475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1295475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1296e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1297b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1298b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1299daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13001da177e4SLinus Torvalds } 13011da177e4SLinus Torvalds 1302cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13031da177e4SLinus Torvalds { 13048687b63aSAl Viro __be32 *p; 13051da177e4SLinus Torvalds 1306475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1307475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13084ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1309ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 1310ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1311b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 131234558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13131da177e4SLinus Torvalds } 13141da177e4SLinus Torvalds 1315d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1316d3c7b7ccSTrond Myklebust { 1317ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1318d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1319d3c7b7ccSTrond Myklebust } 1320d3c7b7ccSTrond Myklebust 1321cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13221da177e4SLinus Torvalds { 1323ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13246fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 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 */ 13554ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1356dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 135795b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1358b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 135995b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 136093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1361d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 136295b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 136395b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13641da177e4SLinus Torvalds } 13651da177e4SLinus Torvalds 13661da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13671da177e4SLinus Torvalds { 13688687b63aSAl Viro __be32 *p; 13694882ef72SAlexandros Batsakis struct nfs_client *clp; 13701da177e4SLinus Torvalds 137113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13721da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13731da177e4SLinus Torvalds case 0: 137434558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13751da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13761da177e4SLinus Torvalds break; 13771da177e4SLinus Torvalds default: 13784882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1379a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13804882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13814882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13824882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13834882ef72SAlexandros Batsakis } else { 13844882ef72SAlexandros Batsakis struct iattr dummy; 13854882ef72SAlexandros Batsakis 13864882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13874882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13884882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13894882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13904882ef72SAlexandros Batsakis } 13914882ef72SAlexandros Batsakis } else { 139234558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13931da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13941da177e4SLinus Torvalds } 13951da177e4SLinus Torvalds } 13964882ef72SAlexandros Batsakis } 13971da177e4SLinus Torvalds 13981da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13991da177e4SLinus Torvalds { 14008687b63aSAl Viro __be32 *p; 14011da177e4SLinus Torvalds 140213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14031da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14041da177e4SLinus Torvalds case 0: 140534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14061da177e4SLinus Torvalds break; 14071da177e4SLinus Torvalds default: 14081da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 140934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14101da177e4SLinus Torvalds encode_createmode(xdr, arg); 14111da177e4SLinus Torvalds } 14121da177e4SLinus Torvalds } 14131da177e4SLinus Torvalds 1414bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14151da177e4SLinus Torvalds { 14168687b63aSAl Viro __be32 *p; 14171da177e4SLinus Torvalds 141813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14191da177e4SLinus Torvalds switch (delegation_type) { 14201da177e4SLinus Torvalds case 0: 142134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14221da177e4SLinus Torvalds break; 14231da177e4SLinus Torvalds case FMODE_READ: 142434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14251da177e4SLinus Torvalds break; 14261da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 142734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14281da177e4SLinus Torvalds break; 14291da177e4SLinus Torvalds default: 14301da177e4SLinus Torvalds BUG(); 14311da177e4SLinus Torvalds } 14321da177e4SLinus Torvalds } 14331da177e4SLinus Torvalds 14341da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14351da177e4SLinus Torvalds { 14368687b63aSAl Viro __be32 *p; 14371da177e4SLinus Torvalds 143813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14401da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14411da177e4SLinus Torvalds } 14421da177e4SLinus Torvalds 1443bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14441da177e4SLinus Torvalds { 14458687b63aSAl Viro __be32 *p; 14461da177e4SLinus Torvalds 144713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14491da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14501da177e4SLinus Torvalds } 14511da177e4SLinus Torvalds 14521da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14531da177e4SLinus Torvalds { 14548687b63aSAl Viro __be32 *p; 14551da177e4SLinus Torvalds 1456ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1457ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1458ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14591da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14601da177e4SLinus Torvalds } 14611da177e4SLinus Torvalds 1462cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14631da177e4SLinus Torvalds { 1464ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 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 } 14801da177e4SLinus Torvalds } 14811da177e4SLinus Torvalds 1482cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 14831da177e4SLinus Torvalds { 1484ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1485ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 14864ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 14871da177e4SLinus Torvalds } 14881da177e4SLinus Torvalds 1489cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 14901da177e4SLinus Torvalds { 1491ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1492ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 14934ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1494dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 14951da177e4SLinus Torvalds } 14961da177e4SLinus Torvalds 1497cf8cdbe5SAndy Adamson static void 1498d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 14991da177e4SLinus Torvalds { 1500ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15016fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15021da177e4SLinus Torvalds } 15031da177e4SLinus Torvalds 1504cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15051da177e4SLinus Torvalds { 1506ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15071da177e4SLinus Torvalds } 15081da177e4SLinus Torvalds 15094fc8796dSTrond Myklebust static void encode_open_stateid(struct xdr_stream *xdr, 15104fc8796dSTrond Myklebust const struct nfs_open_context *ctx, 15114fc8796dSTrond Myklebust const struct nfs_lock_context *l_ctx, 15124fc8796dSTrond Myklebust fmode_t fmode, 15134fc8796dSTrond Myklebust int zero_seqid) 15141da177e4SLinus Torvalds { 15151da177e4SLinus Torvalds nfs4_stateid stateid; 15161da177e4SLinus Torvalds 15171da177e4SLinus Torvalds if (ctx->state != NULL) { 15182a369153STrond Myklebust const struct nfs_lockowner *lockowner = NULL; 15192a369153STrond Myklebust 15202a369153STrond Myklebust if (l_ctx != NULL) 15212a369153STrond Myklebust lockowner = &l_ctx->lockowner; 15224fc8796dSTrond Myklebust nfs4_select_rw_stateid(&stateid, ctx->state, 15232a369153STrond Myklebust fmode, lockowner); 152489d1ea65SAndy Adamson if (zero_seqid) 15252d2f24adSTrond Myklebust stateid.seqid = 0; 1526ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &stateid); 15271da177e4SLinus Torvalds } else 1528ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 15291da177e4SLinus Torvalds } 15301da177e4SLinus Torvalds 1531cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15321da177e4SLinus Torvalds { 15338687b63aSAl Viro __be32 *p; 15341da177e4SLinus Torvalds 1535ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 1536d0b496d2STrond Myklebust encode_open_stateid(xdr, args->context, args->lock_context, 15374fc8796dSTrond Myklebust FMODE_READ, hdr->minorversion); 15381da177e4SLinus Torvalds 153913c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1540b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 154134558513SBenny Halevy *p = cpu_to_be32(args->count); 15421da177e4SLinus Torvalds } 15431da177e4SLinus Torvalds 1544cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15451da177e4SLinus Torvalds { 154628331a46STrond Myklebust uint32_t attrs[2] = { 154728331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 154828331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 154928331a46STrond Myklebust }; 15506f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1551cd93710eSChuck Lever __be32 *p, verf[2]; 15521da177e4SLinus Torvalds 155382f2e547SBryan Schumaker if (readdir->plus) { 155482f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 155528331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 155682f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 155782f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 155882f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 155982f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15606f7a35bdSTrond Myklebust dircount >>= 1; 156182f2e547SBryan Schumaker } 156228331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 156328331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 156428331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15656f7a35bdSTrond Myklebust 1566475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1567ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1568cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1569cd93710eSChuck Lever p = reserve_space(xdr, 20); 15706f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15716f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15726f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 157382f2e547SBryan Schumaker 1574e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 157534558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1576cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 157744109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 157844109241SFred Isaman __func__, 1579eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1580cd93710eSChuck Lever verf[0], verf[1], 1581eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1582eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 15831da177e4SLinus Torvalds } 15841da177e4SLinus Torvalds 1585cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 15861da177e4SLinus Torvalds { 1587ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 15881da177e4SLinus Torvalds } 15891da177e4SLinus Torvalds 1590cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 15911da177e4SLinus Torvalds { 1592ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 15936fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 15941da177e4SLinus Torvalds } 15951da177e4SLinus Torvalds 1596cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 15971da177e4SLinus Torvalds { 1598ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1599811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1600811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 16011da177e4SLinus Torvalds } 16021da177e4SLinus Torvalds 1603bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1604bb4dae5eSChuck Lever struct compound_hdr *hdr) 16051da177e4SLinus Torvalds { 1606475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1607ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16081da177e4SLinus Torvalds } 16091da177e4SLinus Torvalds 1610cf8cdbe5SAndy Adamson static void 1611d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 161256ae19f3STrond Myklebust { 1613ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 161456ae19f3STrond Myklebust } 161556ae19f3STrond Myklebust 16169f06c719SChuck Lever static void 1617d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 161823ec6965SJ. Bruce Fields { 16198687b63aSAl Viro __be32 *p; 162023ec6965SJ. Bruce Fields 1621ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1622ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 162313c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1624e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 162534558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 16269f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 162713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 162834558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 162923ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 163023ec6965SJ. Bruce Fields } 163123ec6965SJ. Bruce Fields 1632cf8cdbe5SAndy Adamson static void 1633d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16341da177e4SLinus Torvalds { 1635ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16361da177e4SLinus Torvalds } 16371da177e4SLinus Torvalds 1638cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16391da177e4SLinus Torvalds { 1640ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1641ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1642cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 16431da177e4SLinus Torvalds } 16441da177e4SLinus Torvalds 1645cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16461da177e4SLinus Torvalds { 16478687b63aSAl Viro __be32 *p; 16481da177e4SLinus Torvalds 164970019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1650cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16511da177e4SLinus Torvalds 16521da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 165313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165434558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16551da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16561da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 165713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165834558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 16591da177e4SLinus Torvalds } 16601da177e4SLinus Torvalds 1661bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16621da177e4SLinus Torvalds { 1663475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1664475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1665ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1666cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 16671da177e4SLinus Torvalds } 16681da177e4SLinus Torvalds 1669cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 16701da177e4SLinus Torvalds { 16718687b63aSAl Viro __be32 *p; 16721da177e4SLinus Torvalds 1673ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 1674d0b496d2STrond Myklebust encode_open_stateid(xdr, args->context, args->lock_context, 16754fc8796dSTrond Myklebust FMODE_WRITE, hdr->minorversion); 16761da177e4SLinus Torvalds 167713c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1678b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1679e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 168034558513SBenny Halevy *p = cpu_to_be32(args->count); 16811da177e4SLinus Torvalds 16821da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 16831da177e4SLinus Torvalds } 16841da177e4SLinus Torvalds 1685cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16861da177e4SLinus Torvalds { 1687ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1688ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 16891da177e4SLinus Torvalds } 16909b7b9fccSAndy Adamson 16915a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16925a5ea0d4SBryan Schumaker { 1693ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 16946fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16955a5ea0d4SBryan Schumaker } 16965a5ea0d4SBryan Schumaker 169799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16989b7b9fccSAndy Adamson /* NFSv4.1 operations */ 16997c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 17007c44f1aeSWeston Andros Adamson struct nfs4_session *session, 17017c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 17027c44f1aeSWeston Andros Adamson { 17037c44f1aeSWeston Andros Adamson __be32 *p; 17047c44f1aeSWeston Andros Adamson 17057c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17067c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 17077c44f1aeSWeston Andros Adamson encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17087c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 17097c44f1aeSWeston Andros Adamson *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH); 17107c44f1aeSWeston Andros Adamson *p = 0; /* use_conn_in_rdma_mode = False */ 17117c44f1aeSWeston Andros Adamson } 17127c44f1aeSWeston Andros Adamson 171399fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 171499fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 171599fe60d0SBenny Halevy struct compound_hdr *hdr) 171699fe60d0SBenny Halevy { 171799fe60d0SBenny Halevy __be32 *p; 1718d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1719db8ac8baSWeston Andros Adamson int len = 0; 172099fe60d0SBenny Halevy 172170019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1722cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 172399fe60d0SBenny Halevy 172499fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 172599fe60d0SBenny Halevy 172613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1727e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1728e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1729db8ac8baSWeston Andros Adamson 1730db8ac8baSWeston Andros Adamson if (send_implementation_id && 1731db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1732db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1733d751f748SJim Rees <= sizeof(impl_name) + 1) 1734db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1735db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1736db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1737db8ac8baSWeston Andros Adamson 1738db8ac8baSWeston Andros Adamson if (len > 0) { 1739db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1740db8ac8baSWeston Andros Adamson 1741db8ac8baSWeston Andros Adamson encode_string(xdr, 1742db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1743db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1744db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1745db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1746db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1747db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1748db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1749db8ac8baSWeston Andros Adamson } else 1750db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 175199fe60d0SBenny Halevy } 1752fc931582SAndy Adamson 1753fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1754fc931582SAndy Adamson struct nfs41_create_session_args *args, 1755fc931582SAndy Adamson struct compound_hdr *hdr) 1756fc931582SAndy Adamson { 1757fc931582SAndy Adamson __be32 *p; 1758fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1759fc931582SAndy Adamson uint32_t len; 1760fc931582SAndy Adamson struct nfs_client *clp = args->client; 1761f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 17628e0d46e1SMike Sager u32 max_resp_sz_cached; 17638e0d46e1SMike Sager 17648e0d46e1SMike Sager /* 17658e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 17668e0d46e1SMike Sager * 2 is the verifier. 17678e0d46e1SMike Sager */ 17688e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 17698e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1770fc931582SAndy Adamson 1771fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1772fc931582SAndy Adamson clp->cl_ipaddr); 177342edd698SBenny Halevy 1774475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 1775475d4ba0STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12); 1776114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1777e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1778e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1779fc931582SAndy Adamson 1780fc931582SAndy Adamson /* Fore Channel */ 1781c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1782e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1783e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 17848e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1785e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1786e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1787e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1788fc931582SAndy Adamson 1789fc931582SAndy Adamson /* Back Channel */ 1790c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1791e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1792e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1793e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1794e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1795e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1796e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1797fc931582SAndy Adamson 1798e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1799e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1800e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1801fc931582SAndy Adamson 1802fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1803f092075dSChuck Lever *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */ 1804811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1805e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1806e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 180734558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1808fc931582SAndy Adamson } 18090f3e66c6SAndy Adamson 18100f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18110f3e66c6SAndy Adamson struct nfs4_session *session, 18120f3e66c6SAndy Adamson struct compound_hdr *hdr) 18130f3e66c6SAndy Adamson { 1814475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1815475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18160f3e66c6SAndy Adamson } 181718019753SRicardo Labiaga 181866245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 181966245539STrond Myklebust uint64_t clientid, 182066245539STrond Myklebust struct compound_hdr *hdr) 182166245539STrond Myklebust { 182266245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 182366245539STrond Myklebust encode_uint64(xdr, clientid); 182466245539STrond Myklebust } 182566245539STrond Myklebust 182618019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 182718019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 182818019753SRicardo Labiaga struct compound_hdr *hdr) 182918019753SRicardo Labiaga { 1830475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1831475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 183218019753SRicardo Labiaga } 183399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 183499fe60d0SBenny Halevy 18359b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18369b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18379b7b9fccSAndy Adamson struct compound_hdr *hdr) 18389b7b9fccSAndy Adamson { 18399b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18409b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1841fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1842fc01cea9SAndy Adamson struct nfs4_slot *slot; 1843fc01cea9SAndy Adamson __be32 *p; 18449b7b9fccSAndy Adamson 18459b7b9fccSAndy Adamson if (!session) 18469b7b9fccSAndy Adamson return; 18479b7b9fccSAndy Adamson 1848fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1849fc01cea9SAndy Adamson 1850fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1851fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1852fc01cea9SAndy Adamson 1853475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1854fc01cea9SAndy Adamson 1855fc01cea9SAndy Adamson /* 1856fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1857fc01cea9SAndy Adamson */ 1858fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1859fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1860fc01cea9SAndy Adamson __func__, 1861fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1862fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1863fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1864fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1865fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1866fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1867475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 186893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1869e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1870e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1871e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 187234558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 18739b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 18749b7b9fccSAndy Adamson } 18759b7b9fccSAndy Adamson 1876b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1877b1f69b75SAndy Adamson static void 18787f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 18797f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 18807f11d8d3SAndy Adamson struct compound_hdr *hdr) 18817f11d8d3SAndy Adamson { 18827f11d8d3SAndy Adamson __be32 *p; 18837f11d8d3SAndy Adamson nfs4_verifier dummy = { 18847f11d8d3SAndy Adamson .data = "dummmmmy", 18857f11d8d3SAndy Adamson }; 18867f11d8d3SAndy Adamson 1887475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr); 1888475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 18897f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 18907f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 18917f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 18927f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 18937f11d8d3SAndy Adamson } 18947f11d8d3SAndy Adamson 18957f11d8d3SAndy Adamson static void 1896b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1897b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1898b1f69b75SAndy Adamson struct compound_hdr *hdr) 1899b1f69b75SAndy Adamson { 1900b1f69b75SAndy Adamson __be32 *p; 1901b1f69b75SAndy Adamson 1902475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 1903475d4ba0STrond Myklebust p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE); 1904b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1905b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1906b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1907b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1908b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1909b1f69b75SAndy Adamson } 1910b1f69b75SAndy Adamson 1911b1f69b75SAndy Adamson static void 1912b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1913b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1914b1f69b75SAndy Adamson struct compound_hdr *hdr) 1915b1f69b75SAndy Adamson { 1916b1f69b75SAndy Adamson __be32 *p; 1917b1f69b75SAndy Adamson 1918475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1919475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1920b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1921b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1922b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1923b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1924b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1925b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1926ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1927475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1928b1f69b75SAndy Adamson 1929b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1930b1f69b75SAndy Adamson __func__, 1931b1f69b75SAndy Adamson args->type, 1932b1f69b75SAndy Adamson args->range.iomode, 1933b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1934b1f69b75SAndy Adamson (unsigned long)args->range.length, 1935b1f69b75SAndy Adamson args->maxcount); 1936b1f69b75SAndy Adamson } 1937863a3c6cSAndy Adamson 1938863a3c6cSAndy Adamson static int 1939863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1940ac7db726SBenny Halevy struct inode *inode, 1941863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1942863a3c6cSAndy Adamson struct compound_hdr *hdr) 1943863a3c6cSAndy Adamson { 1944863a3c6cSAndy Adamson __be32 *p; 1945863a3c6cSAndy Adamson 1946863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1947863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1948863a3c6cSAndy Adamson 1949475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 1950475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1951863a3c6cSAndy Adamson /* Only whole file layouts */ 1952863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19533557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1954ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 1955ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1956ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1957863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1958863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1959863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1960863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1961ac7db726SBenny Halevy 1962ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 1963ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 1964ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 1965475d4ba0STrond Myklebust else 1966475d4ba0STrond Myklebust encode_uint32(xdr, 0); /* no layout-type payload */ 1967863a3c6cSAndy Adamson 1968863a3c6cSAndy Adamson return 0; 1969863a3c6cSAndy Adamson } 1970cbe82603SBenny Halevy 1971cbe82603SBenny Halevy static void 1972cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 1973cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 1974cbe82603SBenny Halevy struct compound_hdr *hdr) 1975cbe82603SBenny Halevy { 1976cbe82603SBenny Halevy __be32 *p; 1977cbe82603SBenny Halevy 1978475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 1979475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 1980cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 1981cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 1982cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 1983cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 1984ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1985cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 1986cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 1987cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 1988ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1989cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 199004a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 199104a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 199204a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 1993475d4ba0STrond Myklebust } else 1994475d4ba0STrond Myklebust encode_uint32(xdr, 0); 1995cbe82603SBenny Halevy } 1996fca78d6dSBryan Schumaker 1997fca78d6dSBryan Schumaker static int 1998fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 1999fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2000fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2001fca78d6dSBryan Schumaker { 2002475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 2003475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2004fca78d6dSBryan Schumaker return 0; 2005fca78d6dSBryan Schumaker } 20067d974794SBryan Schumaker 20077d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20087d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20097d974794SBryan Schumaker struct compound_hdr *hdr) 20107d974794SBryan Schumaker { 2011475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2012475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2013ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20147d974794SBryan Schumaker } 20159aeda35fSBryan Schumaker 20169aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20179aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20189aeda35fSBryan Schumaker struct compound_hdr *hdr) 20199aeda35fSBryan Schumaker { 2020ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 2021ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20229aeda35fSBryan Schumaker } 2023b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2024b1f69b75SAndy Adamson 20251da177e4SLinus Torvalds /* 20261da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20271da177e4SLinus Torvalds */ 20281da177e4SLinus Torvalds 202966cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 203066cc0429SBenny Halevy { 203166cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 203266cc0429SBenny Halevy if (args->sa_session) 2033a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 203466cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 203566cc0429SBenny Halevy return 0; 203666cc0429SBenny Halevy } 203766cc0429SBenny Halevy 20381da177e4SLinus Torvalds /* 20391da177e4SLinus Torvalds * Encode an ACCESS request 20401da177e4SLinus Torvalds */ 20419f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20429f06c719SChuck Lever const struct nfs4_accessargs *args) 20431da177e4SLinus Torvalds { 20441da177e4SLinus Torvalds struct compound_hdr hdr = { 204566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20461da177e4SLinus Torvalds }; 20471da177e4SLinus Torvalds 20489f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20499f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20509f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20519f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 20529f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2053d017931cSAndy Adamson encode_nops(&hdr); 20541da177e4SLinus Torvalds } 20551da177e4SLinus Torvalds 20561da177e4SLinus Torvalds /* 20571da177e4SLinus Torvalds * Encode LOOKUP request 20581da177e4SLinus Torvalds */ 20599f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 20609f06c719SChuck Lever const struct nfs4_lookup_arg *args) 20611da177e4SLinus Torvalds { 20621da177e4SLinus Torvalds struct compound_hdr hdr = { 206366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20641da177e4SLinus Torvalds }; 20651da177e4SLinus Torvalds 20669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20679f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20689f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 20699f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 20709f06c719SChuck Lever encode_getfh(xdr, &hdr); 20719f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2072d017931cSAndy Adamson encode_nops(&hdr); 20731da177e4SLinus Torvalds } 20741da177e4SLinus Torvalds 20751da177e4SLinus Torvalds /* 20761da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 20771da177e4SLinus Torvalds */ 20789f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 20799f06c719SChuck Lever struct xdr_stream *xdr, 20809f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 20811da177e4SLinus Torvalds { 20821da177e4SLinus Torvalds struct compound_hdr hdr = { 208366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20841da177e4SLinus Torvalds }; 20851da177e4SLinus Torvalds 20869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20879f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20889f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 20899f06c719SChuck Lever encode_getfh(xdr, &hdr); 20909f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2091d017931cSAndy Adamson encode_nops(&hdr); 20921da177e4SLinus Torvalds } 20931da177e4SLinus Torvalds 20941da177e4SLinus Torvalds /* 20951da177e4SLinus Torvalds * Encode REMOVE request 20961da177e4SLinus Torvalds */ 20979f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 20989f06c719SChuck Lever const struct nfs_removeargs *args) 20991da177e4SLinus Torvalds { 21001da177e4SLinus Torvalds struct compound_hdr hdr = { 210166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21021da177e4SLinus Torvalds }; 21031da177e4SLinus Torvalds 21049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21059f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21069f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21079f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2108d017931cSAndy Adamson encode_nops(&hdr); 21091da177e4SLinus Torvalds } 21101da177e4SLinus Torvalds 21111da177e4SLinus Torvalds /* 21121da177e4SLinus Torvalds * Encode RENAME request 21131da177e4SLinus Torvalds */ 21149f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21159f06c719SChuck Lever const struct nfs_renameargs *args) 21161da177e4SLinus Torvalds { 21171da177e4SLinus Torvalds struct compound_hdr hdr = { 211866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21191da177e4SLinus Torvalds }; 21201da177e4SLinus Torvalds 21219f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21229f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21239f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21249f06c719SChuck Lever encode_savefh(xdr, &hdr); 21259f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21269f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2127d017931cSAndy Adamson encode_nops(&hdr); 21281da177e4SLinus Torvalds } 21291da177e4SLinus Torvalds 21301da177e4SLinus Torvalds /* 21311da177e4SLinus Torvalds * Encode LINK request 21321da177e4SLinus Torvalds */ 21339f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21349f06c719SChuck Lever const struct nfs4_link_arg *args) 21351da177e4SLinus Torvalds { 21361da177e4SLinus Torvalds struct compound_hdr hdr = { 213766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21381da177e4SLinus Torvalds }; 21391da177e4SLinus Torvalds 21409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21439f06c719SChuck Lever encode_savefh(xdr, &hdr); 21449f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21459f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21469f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21479f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2148d017931cSAndy Adamson encode_nops(&hdr); 21491da177e4SLinus Torvalds } 21501da177e4SLinus Torvalds 21511da177e4SLinus Torvalds /* 21521da177e4SLinus Torvalds * Encode CREATE request 21531da177e4SLinus Torvalds */ 21549f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 21559f06c719SChuck Lever const struct nfs4_create_arg *args) 21561da177e4SLinus Torvalds { 21571da177e4SLinus Torvalds struct compound_hdr hdr = { 215866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21591da177e4SLinus Torvalds }; 21601da177e4SLinus Torvalds 21619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21629f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21639f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21649f06c719SChuck Lever encode_create(xdr, args, &hdr); 21659f06c719SChuck Lever encode_getfh(xdr, &hdr); 21669f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2167d017931cSAndy Adamson encode_nops(&hdr); 21681da177e4SLinus Torvalds } 21691da177e4SLinus Torvalds 21701da177e4SLinus Torvalds /* 21711da177e4SLinus Torvalds * Encode SYMLINK request 21721da177e4SLinus Torvalds */ 21739f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21749f06c719SChuck Lever const struct nfs4_create_arg *args) 21751da177e4SLinus Torvalds { 21769f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 21771da177e4SLinus Torvalds } 21781da177e4SLinus Torvalds 21791da177e4SLinus Torvalds /* 21801da177e4SLinus Torvalds * Encode GETATTR request 21811da177e4SLinus Torvalds */ 21829f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 21839f06c719SChuck Lever const struct nfs4_getattr_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_putfh(xdr, args->fh, &hdr); 21929f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2193d017931cSAndy Adamson encode_nops(&hdr); 21941da177e4SLinus Torvalds } 21951da177e4SLinus Torvalds 21961da177e4SLinus Torvalds /* 21971da177e4SLinus Torvalds * Encode a CLOSE request 21981da177e4SLinus Torvalds */ 21999f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 22009f06c719SChuck Lever struct nfs_closeargs *args) 22011da177e4SLinus Torvalds { 22021da177e4SLinus Torvalds struct compound_hdr hdr = { 220366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22041da177e4SLinus Torvalds }; 22051da177e4SLinus Torvalds 22069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22089f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22099f06c719SChuck Lever encode_close(xdr, args, &hdr); 22109f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2211d017931cSAndy Adamson encode_nops(&hdr); 22121da177e4SLinus Torvalds } 22131da177e4SLinus Torvalds 22141da177e4SLinus Torvalds /* 22151da177e4SLinus Torvalds * Encode an OPEN request 22161da177e4SLinus Torvalds */ 22179f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22189f06c719SChuck Lever struct nfs_openargs *args) 22191da177e4SLinus Torvalds { 22201da177e4SLinus Torvalds struct compound_hdr hdr = { 222166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22221da177e4SLinus Torvalds }; 22231da177e4SLinus Torvalds 22249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22269f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22279f06c719SChuck Lever encode_open(xdr, args, &hdr); 22289f06c719SChuck Lever encode_getfh(xdr, &hdr); 2229ae2bb032SWeston Andros Adamson if (args->access) 22306168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22311549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2232d017931cSAndy Adamson encode_nops(&hdr); 22331da177e4SLinus Torvalds } 22341da177e4SLinus Torvalds 22351da177e4SLinus Torvalds /* 22361da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22371da177e4SLinus Torvalds */ 22389f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22399f06c719SChuck Lever struct xdr_stream *xdr, 22409f06c719SChuck Lever struct nfs_open_confirmargs *args) 22411da177e4SLinus Torvalds { 22421da177e4SLinus Torvalds struct compound_hdr hdr = { 2243d017931cSAndy Adamson .nops = 0, 22441da177e4SLinus Torvalds }; 22451da177e4SLinus Torvalds 22469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22479f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22489f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2249d017931cSAndy Adamson encode_nops(&hdr); 22501da177e4SLinus Torvalds } 22511da177e4SLinus Torvalds 22521da177e4SLinus Torvalds /* 22531da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 22541da177e4SLinus Torvalds */ 22559f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 22569f06c719SChuck Lever struct xdr_stream *xdr, 22579f06c719SChuck Lever struct nfs_openargs *args) 22581da177e4SLinus Torvalds { 22591da177e4SLinus Torvalds struct compound_hdr hdr = { 226066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22611da177e4SLinus Torvalds }; 22621da177e4SLinus Torvalds 22639f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22649f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22659f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22669f06c719SChuck Lever encode_open(xdr, args, &hdr); 2267ae2bb032SWeston Andros Adamson if (args->access) 22686168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2269e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2270d017931cSAndy Adamson encode_nops(&hdr); 22711da177e4SLinus Torvalds } 22721da177e4SLinus Torvalds 22731da177e4SLinus Torvalds /* 22741da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 22751da177e4SLinus Torvalds */ 22769f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 22779f06c719SChuck Lever struct xdr_stream *xdr, 22789f06c719SChuck Lever struct nfs_closeargs *args) 22791da177e4SLinus Torvalds { 22801da177e4SLinus Torvalds struct compound_hdr hdr = { 228166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22821da177e4SLinus Torvalds }; 22831da177e4SLinus Torvalds 22849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22859f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22869f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22879f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 22889f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2289d017931cSAndy Adamson encode_nops(&hdr); 22901da177e4SLinus Torvalds } 22911da177e4SLinus Torvalds 22921da177e4SLinus Torvalds /* 22931da177e4SLinus Torvalds * Encode a LOCK request 22941da177e4SLinus Torvalds */ 22959f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 22969f06c719SChuck Lever struct nfs_lock_args *args) 22971da177e4SLinus Torvalds { 22981da177e4SLinus Torvalds struct compound_hdr hdr = { 229966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23001da177e4SLinus Torvalds }; 23011da177e4SLinus Torvalds 23029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23049f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23059f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2306d017931cSAndy Adamson encode_nops(&hdr); 23071da177e4SLinus Torvalds } 23081da177e4SLinus Torvalds 23091da177e4SLinus Torvalds /* 23101da177e4SLinus Torvalds * Encode a LOCKT request 23111da177e4SLinus Torvalds */ 23129f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23139f06c719SChuck Lever struct nfs_lockt_args *args) 23141da177e4SLinus Torvalds { 23151da177e4SLinus Torvalds struct compound_hdr hdr = { 231666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23171da177e4SLinus Torvalds }; 23181da177e4SLinus Torvalds 23199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23209f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23219f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23229f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2323d017931cSAndy Adamson encode_nops(&hdr); 23241da177e4SLinus Torvalds } 23251da177e4SLinus Torvalds 23261da177e4SLinus Torvalds /* 23271da177e4SLinus Torvalds * Encode a LOCKU request 23281da177e4SLinus Torvalds */ 23299f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23309f06c719SChuck Lever struct nfs_locku_args *args) 23311da177e4SLinus Torvalds { 23321da177e4SLinus Torvalds struct compound_hdr hdr = { 233366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23341da177e4SLinus Torvalds }; 23351da177e4SLinus Torvalds 23369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23379f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23389f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23399f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2340d017931cSAndy Adamson encode_nops(&hdr); 23411da177e4SLinus Torvalds } 23421da177e4SLinus Torvalds 23439f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23449f06c719SChuck Lever struct xdr_stream *xdr, 23459f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2346d3c7b7ccSTrond Myklebust { 2347d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2348d3c7b7ccSTrond Myklebust .minorversion = 0, 2349d3c7b7ccSTrond Myklebust }; 2350d3c7b7ccSTrond Myklebust 23519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23529f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2353d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2354d3c7b7ccSTrond Myklebust } 2355d3c7b7ccSTrond Myklebust 23561da177e4SLinus Torvalds /* 23571da177e4SLinus Torvalds * Encode a READLINK request 23581da177e4SLinus Torvalds */ 23599f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 23609f06c719SChuck Lever const struct nfs4_readlink *args) 23611da177e4SLinus Torvalds { 23621da177e4SLinus Torvalds struct compound_hdr hdr = { 236366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23641da177e4SLinus Torvalds }; 23651da177e4SLinus Torvalds 23669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23679f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23689f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23699f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2370e3a535e1STrond Myklebust 237128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2372e3a535e1STrond Myklebust args->pgbase, args->pglen); 2373d017931cSAndy Adamson encode_nops(&hdr); 23741da177e4SLinus Torvalds } 23751da177e4SLinus Torvalds 23761da177e4SLinus Torvalds /* 23771da177e4SLinus Torvalds * Encode a READDIR request 23781da177e4SLinus Torvalds */ 23799f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 23809f06c719SChuck Lever const struct nfs4_readdir_arg *args) 23811da177e4SLinus Torvalds { 23821da177e4SLinus Torvalds struct compound_hdr hdr = { 238366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23841da177e4SLinus Torvalds }; 23851da177e4SLinus Torvalds 23869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23879f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23889f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23899f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2390d6ac02dfSTrond Myklebust 239128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2392d6ac02dfSTrond Myklebust args->pgbase, args->count); 2393d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 239428f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2395d6ac02dfSTrond Myklebust args->pgbase, args->count); 2396d017931cSAndy Adamson encode_nops(&hdr); 23971da177e4SLinus Torvalds } 23981da177e4SLinus Torvalds 23991da177e4SLinus Torvalds /* 24001da177e4SLinus Torvalds * Encode a READ request 24011da177e4SLinus Torvalds */ 24029f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24039f06c719SChuck Lever struct nfs_readargs *args) 24041da177e4SLinus Torvalds { 24051da177e4SLinus Torvalds struct compound_hdr hdr = { 240666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24071da177e4SLinus Torvalds }; 24081da177e4SLinus Torvalds 24099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24109f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24119f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24129f06c719SChuck Lever encode_read(xdr, args, &hdr); 24131da177e4SLinus Torvalds 241428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24151da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24164f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2417d017931cSAndy Adamson encode_nops(&hdr); 24181da177e4SLinus Torvalds } 24191da177e4SLinus Torvalds 24201da177e4SLinus Torvalds /* 24211da177e4SLinus Torvalds * Encode an SETATTR request 24221da177e4SLinus Torvalds */ 24239f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24249f06c719SChuck Lever struct nfs_setattrargs *args) 24251da177e4SLinus Torvalds { 24261da177e4SLinus Torvalds struct compound_hdr hdr = { 242766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24281da177e4SLinus Torvalds }; 24291da177e4SLinus Torvalds 24309f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24319f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24329f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24339f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24349f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2435d017931cSAndy Adamson encode_nops(&hdr); 24361da177e4SLinus Torvalds } 24371da177e4SLinus Torvalds 24381da177e4SLinus Torvalds /* 2439029d105eSJ. Bruce Fields * Encode a GETACL request 2440029d105eSJ. Bruce Fields */ 24419f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2442029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2443029d105eSJ. Bruce Fields { 2444029d105eSJ. Bruce Fields struct compound_hdr hdr = { 244566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2446029d105eSJ. Bruce Fields }; 244728f56694SBenny Halevy uint32_t replen; 2448029d105eSJ. Bruce Fields 24499f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24509f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24519f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2452bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 24539f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2454cf8cdbe5SAndy Adamson 245528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2456029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2457bf118a34SAndy Adamson 2458d017931cSAndy Adamson encode_nops(&hdr); 2459029d105eSJ. Bruce Fields } 2460029d105eSJ. Bruce Fields 2461029d105eSJ. Bruce Fields /* 24621da177e4SLinus Torvalds * Encode a WRITE request 24631da177e4SLinus Torvalds */ 24649f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 24659f06c719SChuck Lever struct nfs_writeargs *args) 24661da177e4SLinus Torvalds { 24671da177e4SLinus Torvalds struct compound_hdr hdr = { 246866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24691da177e4SLinus Torvalds }; 24701da177e4SLinus Torvalds 24719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24729f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24739f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24749f06c719SChuck Lever encode_write(xdr, args, &hdr); 24754f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 24767ffd1064SFred Isaman if (args->bitmask) 24779f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2478d017931cSAndy Adamson encode_nops(&hdr); 24791da177e4SLinus Torvalds } 24801da177e4SLinus Torvalds 24811da177e4SLinus Torvalds /* 24821da177e4SLinus Torvalds * a COMMIT request 24831da177e4SLinus Torvalds */ 24849f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 24850b7c0153SFred Isaman struct nfs_commitargs *args) 24861da177e4SLinus Torvalds { 24871da177e4SLinus Torvalds struct compound_hdr hdr = { 248866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24891da177e4SLinus Torvalds }; 24901da177e4SLinus Torvalds 24919f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24929f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24939f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24949f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2495d017931cSAndy Adamson encode_nops(&hdr); 24961da177e4SLinus Torvalds } 24971da177e4SLinus Torvalds 24981da177e4SLinus Torvalds /* 24991da177e4SLinus Torvalds * FSINFO request 25001da177e4SLinus Torvalds */ 25019f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 25029f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25031da177e4SLinus Torvalds { 25041da177e4SLinus Torvalds struct compound_hdr hdr = { 250566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25061da177e4SLinus Torvalds }; 25071da177e4SLinus Torvalds 25089f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25099f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25109f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25119f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2512d017931cSAndy Adamson encode_nops(&hdr); 25131da177e4SLinus Torvalds } 25141da177e4SLinus Torvalds 25151da177e4SLinus Torvalds /* 25161da177e4SLinus Torvalds * a PATHCONF request 25171da177e4SLinus Torvalds */ 25189f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25199f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25201da177e4SLinus Torvalds { 25211da177e4SLinus Torvalds struct compound_hdr hdr = { 252266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25231da177e4SLinus Torvalds }; 25241da177e4SLinus Torvalds 25259f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25269f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25279f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25289f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2529d017931cSAndy Adamson &hdr); 2530d017931cSAndy Adamson encode_nops(&hdr); 25311da177e4SLinus Torvalds } 25321da177e4SLinus Torvalds 25331da177e4SLinus Torvalds /* 25341da177e4SLinus Torvalds * a STATFS request 25351da177e4SLinus Torvalds */ 25369f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25379f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25381da177e4SLinus Torvalds { 25391da177e4SLinus Torvalds struct compound_hdr hdr = { 254066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25411da177e4SLinus Torvalds }; 25421da177e4SLinus Torvalds 25439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25449f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25459f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25469f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2547d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2548d017931cSAndy Adamson encode_nops(&hdr); 25491da177e4SLinus Torvalds } 25501da177e4SLinus Torvalds 25511da177e4SLinus Torvalds /* 25521da177e4SLinus Torvalds * GETATTR_BITMAP request 25531da177e4SLinus Torvalds */ 25549f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 25559f06c719SChuck Lever struct xdr_stream *xdr, 255643652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 25571da177e4SLinus Torvalds { 25581da177e4SLinus Torvalds struct compound_hdr hdr = { 255966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25601da177e4SLinus Torvalds }; 25611da177e4SLinus Torvalds 25629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25649f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 25659f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2566264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 25671da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 25681da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2569d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2570d017931cSAndy Adamson encode_nops(&hdr); 25711da177e4SLinus Torvalds } 25721da177e4SLinus Torvalds 25731da177e4SLinus Torvalds /* 25741da177e4SLinus Torvalds * a RENEW request 25751da177e4SLinus Torvalds */ 25769f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 25779f06c719SChuck Lever struct nfs_client *clp) 25781da177e4SLinus Torvalds { 25791da177e4SLinus Torvalds struct compound_hdr hdr = { 2580d017931cSAndy Adamson .nops = 0, 25811da177e4SLinus Torvalds }; 25821da177e4SLinus Torvalds 25839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2584bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2585d017931cSAndy Adamson encode_nops(&hdr); 25861da177e4SLinus Torvalds } 25871da177e4SLinus Torvalds 25881da177e4SLinus Torvalds /* 25891da177e4SLinus Torvalds * a SETCLIENTID request 25901da177e4SLinus Torvalds */ 25919f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 25929f06c719SChuck Lever struct xdr_stream *xdr, 25939f06c719SChuck Lever struct nfs4_setclientid *sc) 25941da177e4SLinus Torvalds { 25951da177e4SLinus Torvalds struct compound_hdr hdr = { 2596d017931cSAndy Adamson .nops = 0, 25971da177e4SLinus Torvalds }; 25981da177e4SLinus Torvalds 25999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26009f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2601d017931cSAndy Adamson encode_nops(&hdr); 26021da177e4SLinus Torvalds } 26031da177e4SLinus Torvalds 26041da177e4SLinus Torvalds /* 26051da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 26061da177e4SLinus Torvalds */ 26079f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26089f06c719SChuck Lever struct xdr_stream *xdr, 26099f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26101da177e4SLinus Torvalds { 26111da177e4SLinus Torvalds struct compound_hdr hdr = { 2612d017931cSAndy Adamson .nops = 0, 26131da177e4SLinus Torvalds }; 2614dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 26151da177e4SLinus Torvalds 26169f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26179f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 26189f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 26199f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2620d017931cSAndy Adamson encode_nops(&hdr); 26211da177e4SLinus Torvalds } 26221da177e4SLinus Torvalds 26231da177e4SLinus Torvalds /* 26241da177e4SLinus Torvalds * DELEGRETURN request 26251da177e4SLinus Torvalds */ 26269f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26279f06c719SChuck Lever struct xdr_stream *xdr, 26289f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26291da177e4SLinus Torvalds { 26301da177e4SLinus Torvalds struct compound_hdr hdr = { 263166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26321da177e4SLinus Torvalds }; 26331da177e4SLinus Torvalds 26349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26359f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26369f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26379f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2638e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2639d017931cSAndy Adamson encode_nops(&hdr); 26401da177e4SLinus Torvalds } 26411da177e4SLinus Torvalds 26421da177e4SLinus Torvalds /* 2643683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2644683b57b4STrond Myklebust */ 26459f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26469f06c719SChuck Lever struct xdr_stream *xdr, 26479f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2648683b57b4STrond Myklebust { 2649683b57b4STrond Myklebust struct compound_hdr hdr = { 265066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2651683b57b4STrond Myklebust }; 265228f56694SBenny Halevy uint32_t replen; 2653683b57b4STrond Myklebust 26549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26559f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26569f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 26579f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 265828f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 26599f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2660cf8cdbe5SAndy Adamson 266128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2662683b57b4STrond Myklebust 0, PAGE_SIZE); 2663d017931cSAndy Adamson encode_nops(&hdr); 2664683b57b4STrond Myklebust } 2665683b57b4STrond Myklebust 26665a5ea0d4SBryan Schumaker /* 26675a5ea0d4SBryan Schumaker * Encode SECINFO request 26685a5ea0d4SBryan Schumaker */ 26695a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 26705a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 26715a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 26725a5ea0d4SBryan Schumaker { 26735a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 26745a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26755a5ea0d4SBryan Schumaker }; 26765a5ea0d4SBryan Schumaker 26775a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 26785a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 26795a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 26805a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 26815a5ea0d4SBryan Schumaker encode_nops(&hdr); 26825a5ea0d4SBryan Schumaker } 26835a5ea0d4SBryan Schumaker 268499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 268599fe60d0SBenny Halevy /* 26867c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 26877c44f1aeSWeston Andros Adamson */ 26887c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 26897c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 26907c44f1aeSWeston Andros Adamson struct nfs_client *clp) 26917c44f1aeSWeston Andros Adamson { 26927c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 26937c44f1aeSWeston Andros Adamson .minorversion = clp->cl_mvops->minor_version, 26947c44f1aeSWeston Andros Adamson }; 26957c44f1aeSWeston Andros Adamson 26967c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 26977c44f1aeSWeston Andros Adamson encode_bind_conn_to_session(xdr, clp->cl_session, &hdr); 26987c44f1aeSWeston Andros Adamson encode_nops(&hdr); 26997c44f1aeSWeston Andros Adamson } 27007c44f1aeSWeston Andros Adamson 27017c44f1aeSWeston Andros Adamson /* 270299fe60d0SBenny Halevy * EXCHANGE_ID request 270399fe60d0SBenny Halevy */ 27049f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27059f06c719SChuck Lever struct xdr_stream *xdr, 270699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 270799fe60d0SBenny Halevy { 270899fe60d0SBenny Halevy struct compound_hdr hdr = { 2709a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 271099fe60d0SBenny Halevy }; 271199fe60d0SBenny Halevy 27129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27139f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 271499fe60d0SBenny Halevy encode_nops(&hdr); 271599fe60d0SBenny Halevy } 27162050f0ccSAndy Adamson 27172050f0ccSAndy Adamson /* 2718fc931582SAndy Adamson * a CREATE_SESSION request 2719fc931582SAndy Adamson */ 27209f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27219f06c719SChuck Lever struct xdr_stream *xdr, 2722fc931582SAndy Adamson struct nfs41_create_session_args *args) 2723fc931582SAndy Adamson { 2724fc931582SAndy Adamson struct compound_hdr hdr = { 2725a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2726fc931582SAndy Adamson }; 2727fc931582SAndy Adamson 27289f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27299f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2730fc931582SAndy Adamson encode_nops(&hdr); 2731fc931582SAndy Adamson } 2732fc931582SAndy Adamson 2733fc931582SAndy Adamson /* 27340f3e66c6SAndy Adamson * a DESTROY_SESSION request 27350f3e66c6SAndy Adamson */ 27369f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 27379f06c719SChuck Lever struct xdr_stream *xdr, 27380f3e66c6SAndy Adamson struct nfs4_session *session) 27390f3e66c6SAndy Adamson { 27400f3e66c6SAndy Adamson struct compound_hdr hdr = { 2741a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 27420f3e66c6SAndy Adamson }; 27430f3e66c6SAndy Adamson 27449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27459f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 27460f3e66c6SAndy Adamson encode_nops(&hdr); 27470f3e66c6SAndy Adamson } 27480f3e66c6SAndy Adamson 27490f3e66c6SAndy Adamson /* 275066245539STrond Myklebust * a DESTROY_CLIENTID request 275166245539STrond Myklebust */ 275266245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 275366245539STrond Myklebust struct xdr_stream *xdr, 275466245539STrond Myklebust struct nfs_client *clp) 275566245539STrond Myklebust { 275666245539STrond Myklebust struct compound_hdr hdr = { 275766245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 275866245539STrond Myklebust }; 275966245539STrond Myklebust 276066245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 276166245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 276266245539STrond Myklebust encode_nops(&hdr); 276366245539STrond Myklebust } 276466245539STrond Myklebust 276566245539STrond Myklebust /* 2766fc01cea9SAndy Adamson * a SEQUENCE request 2767fc01cea9SAndy Adamson */ 27689f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2769fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2770fc01cea9SAndy Adamson { 2771fc01cea9SAndy Adamson struct compound_hdr hdr = { 2772fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2773fc01cea9SAndy Adamson }; 2774fc01cea9SAndy Adamson 27759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27769f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2777fc01cea9SAndy Adamson encode_nops(&hdr); 2778fc01cea9SAndy Adamson } 2779fc01cea9SAndy Adamson 2780fc01cea9SAndy Adamson /* 27812050f0ccSAndy Adamson * a GET_LEASE_TIME request 27822050f0ccSAndy Adamson */ 27839f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 27849f06c719SChuck Lever struct xdr_stream *xdr, 27852050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 27862050f0ccSAndy Adamson { 27872050f0ccSAndy Adamson struct compound_hdr hdr = { 27882050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 27892050f0ccSAndy Adamson }; 2790dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27912050f0ccSAndy Adamson 27929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27939f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 27949f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27959f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 27962050f0ccSAndy Adamson encode_nops(&hdr); 27972050f0ccSAndy Adamson } 279818019753SRicardo Labiaga 279918019753SRicardo Labiaga /* 280018019753SRicardo Labiaga * a RECLAIM_COMPLETE request 280118019753SRicardo Labiaga */ 28029f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28039f06c719SChuck Lever struct xdr_stream *xdr, 280418019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 280518019753SRicardo Labiaga { 280618019753SRicardo Labiaga struct compound_hdr hdr = { 280718019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 280818019753SRicardo Labiaga }; 280918019753SRicardo Labiaga 28109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28119f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28129f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 281318019753SRicardo Labiaga encode_nops(&hdr); 281418019753SRicardo Labiaga } 281518019753SRicardo Labiaga 2816b1f69b75SAndy Adamson /* 28177f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28187f11d8d3SAndy Adamson */ 28197f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28207f11d8d3SAndy Adamson struct xdr_stream *xdr, 28217f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 28227f11d8d3SAndy Adamson { 28237f11d8d3SAndy Adamson struct compound_hdr hdr = { 28247f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 28257f11d8d3SAndy Adamson }; 28267f11d8d3SAndy Adamson 28277f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 28287f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 28297f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 28307f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 28317f11d8d3SAndy Adamson encode_nops(&hdr); 28327f11d8d3SAndy Adamson } 28337f11d8d3SAndy Adamson 28347f11d8d3SAndy Adamson /* 2835b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2836b1f69b75SAndy Adamson */ 28379f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28389f06c719SChuck Lever struct xdr_stream *xdr, 2839b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2840b1f69b75SAndy Adamson { 2841b1f69b75SAndy Adamson struct compound_hdr hdr = { 2842b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2843b1f69b75SAndy Adamson }; 2844b1f69b75SAndy Adamson 28459f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28469f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28479f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2848b1f69b75SAndy Adamson 2849b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2850b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2851b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2852b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2853b1f69b75SAndy Adamson args->pdev->pglen); 2854b1f69b75SAndy Adamson 2855b1f69b75SAndy Adamson encode_nops(&hdr); 2856b1f69b75SAndy Adamson } 2857b1f69b75SAndy Adamson 2858b1f69b75SAndy Adamson /* 2859b1f69b75SAndy Adamson * Encode LAYOUTGET request 2860b1f69b75SAndy Adamson */ 28619f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 28629f06c719SChuck Lever struct xdr_stream *xdr, 2863b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2864b1f69b75SAndy Adamson { 2865b1f69b75SAndy Adamson struct compound_hdr hdr = { 2866b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2867b1f69b75SAndy Adamson }; 2868b1f69b75SAndy Adamson 28699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28709f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28719f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 28729f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 287335124a09SWeston Andros Adamson 287435124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 287535124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 287635124a09SWeston Andros Adamson 2877b1f69b75SAndy Adamson encode_nops(&hdr); 2878b1f69b75SAndy Adamson } 2879863a3c6cSAndy Adamson 2880863a3c6cSAndy Adamson /* 2881863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2882863a3c6cSAndy Adamson */ 2883cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2884863a3c6cSAndy Adamson struct xdr_stream *xdr, 2885863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2886863a3c6cSAndy Adamson { 2887ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2888ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2889863a3c6cSAndy Adamson struct compound_hdr hdr = { 2890863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2891863a3c6cSAndy Adamson }; 2892863a3c6cSAndy Adamson 2893863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2894863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2895863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2896ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2897863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2898863a3c6cSAndy Adamson encode_nops(&hdr); 2899cbe82603SBenny Halevy } 2900cbe82603SBenny Halevy 2901cbe82603SBenny Halevy /* 2902cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2903cbe82603SBenny Halevy */ 2904cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2905cbe82603SBenny Halevy struct xdr_stream *xdr, 2906cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2907cbe82603SBenny Halevy { 2908cbe82603SBenny Halevy struct compound_hdr hdr = { 2909cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2910cbe82603SBenny Halevy }; 2911cbe82603SBenny Halevy 2912cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2913cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2914cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2915cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2916cbe82603SBenny Halevy encode_nops(&hdr); 2917863a3c6cSAndy Adamson } 2918fca78d6dSBryan Schumaker 2919fca78d6dSBryan Schumaker /* 2920fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2921fca78d6dSBryan Schumaker */ 2922fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2923fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2924fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2925fca78d6dSBryan Schumaker { 2926fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2927fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2928fca78d6dSBryan Schumaker }; 2929fca78d6dSBryan Schumaker 2930fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2931fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2932fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2933fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2934fca78d6dSBryan Schumaker encode_nops(&hdr); 2935fca78d6dSBryan Schumaker return 0; 2936fca78d6dSBryan Schumaker } 29377d974794SBryan Schumaker 29387d974794SBryan Schumaker /* 29397d974794SBryan Schumaker * Encode TEST_STATEID request 29407d974794SBryan Schumaker */ 29417d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29427d974794SBryan Schumaker struct xdr_stream *xdr, 29437d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29447d974794SBryan Schumaker { 29457d974794SBryan Schumaker struct compound_hdr hdr = { 29467d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29477d974794SBryan Schumaker }; 29487d974794SBryan Schumaker 29497d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29507d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29517d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 29527d974794SBryan Schumaker encode_nops(&hdr); 29537d974794SBryan Schumaker } 29549aeda35fSBryan Schumaker 29559aeda35fSBryan Schumaker /* 29569aeda35fSBryan Schumaker * Encode FREE_STATEID request 29579aeda35fSBryan Schumaker */ 29589aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 29599aeda35fSBryan Schumaker struct xdr_stream *xdr, 29609aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 29619aeda35fSBryan Schumaker { 29629aeda35fSBryan Schumaker struct compound_hdr hdr = { 29639aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29649aeda35fSBryan Schumaker }; 29659aeda35fSBryan Schumaker 29669aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29679aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29689aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 29699aeda35fSBryan Schumaker encode_nops(&hdr); 29709aeda35fSBryan Schumaker } 297199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 297299fe60d0SBenny Halevy 2973686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2974686841b3SBenny Halevy { 2975686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2976686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2977686841b3SBenny Halevy func, xdr->end - xdr->p); 2978686841b3SBenny Halevy } 29791da177e4SLinus Torvalds 2980683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 29811da177e4SLinus Torvalds { 29828687b63aSAl Viro __be32 *p; 29831da177e4SLinus Torvalds 2984c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2985c0eae66eSBenny Halevy if (unlikely(!p)) 2986c0eae66eSBenny Halevy goto out_overflow; 2987cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2988c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2989c0eae66eSBenny Halevy if (unlikely(!p)) 2990c0eae66eSBenny Halevy goto out_overflow; 29911da177e4SLinus Torvalds *string = (char *)p; 29921da177e4SLinus Torvalds return 0; 2993c0eae66eSBenny Halevy out_overflow: 2994c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2995c0eae66eSBenny Halevy return -EIO; 29961da177e4SLinus Torvalds } 29971da177e4SLinus Torvalds 29981da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 29991da177e4SLinus Torvalds { 30008687b63aSAl Viro __be32 *p; 30011da177e4SLinus Torvalds 3002c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3003c0eae66eSBenny Halevy if (unlikely(!p)) 3004c0eae66eSBenny Halevy goto out_overflow; 30056f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3006cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30071da177e4SLinus Torvalds 3008c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3009c0eae66eSBenny Halevy if (unlikely(!p)) 3010c0eae66eSBenny Halevy goto out_overflow; 30111da177e4SLinus Torvalds hdr->tag = (char *)p; 30121da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3013cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3014aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3015aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30161da177e4SLinus Torvalds return 0; 3017c0eae66eSBenny Halevy out_overflow: 3018c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3019c0eae66eSBenny Halevy return -EIO; 30201da177e4SLinus Torvalds } 30211da177e4SLinus Torvalds 30221da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 30231da177e4SLinus Torvalds { 30248687b63aSAl Viro __be32 *p; 30251da177e4SLinus Torvalds uint32_t opnum; 30261da177e4SLinus Torvalds int32_t nfserr; 30271da177e4SLinus Torvalds 3028c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3029c0eae66eSBenny Halevy if (unlikely(!p)) 3030c0eae66eSBenny Halevy goto out_overflow; 30316f723f77SBenny Halevy opnum = be32_to_cpup(p++); 30321da177e4SLinus Torvalds if (opnum != expected) { 3033fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30341da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30351da177e4SLinus Torvalds opnum, expected); 30361da177e4SLinus Torvalds return -EIO; 30371da177e4SLinus Torvalds } 3038cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 30391da177e4SLinus Torvalds if (nfserr != NFS_OK) 3040856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 30411da177e4SLinus Torvalds return 0; 3042c0eae66eSBenny Halevy out_overflow: 3043c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3044c0eae66eSBenny Halevy return -EIO; 30451da177e4SLinus Torvalds } 30461da177e4SLinus Torvalds 30471da177e4SLinus Torvalds /* Dummy routine */ 3048adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 30491da177e4SLinus Torvalds { 30508687b63aSAl Viro __be32 *p; 3051683b57b4STrond Myklebust unsigned int strlen; 30521da177e4SLinus Torvalds char *str; 30531da177e4SLinus Torvalds 3054c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3055c0eae66eSBenny Halevy if (likely(p)) 30561da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3057c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3058c0eae66eSBenny Halevy return -EIO; 30591da177e4SLinus Torvalds } 30601da177e4SLinus Torvalds 30611da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 30621da177e4SLinus Torvalds { 30638687b63aSAl Viro uint32_t bmlen; 30648687b63aSAl Viro __be32 *p; 30651da177e4SLinus Torvalds 3066c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3067c0eae66eSBenny Halevy if (unlikely(!p)) 3068c0eae66eSBenny Halevy goto out_overflow; 3069cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 30701da177e4SLinus Torvalds 3071dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3072c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3073c0eae66eSBenny Halevy if (unlikely(!p)) 3074c0eae66eSBenny Halevy goto out_overflow; 30751da177e4SLinus Torvalds if (bmlen > 0) { 30766f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3077dae100c2SFred Isaman if (bmlen > 1) { 3078dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3079dae100c2SFred Isaman if (bmlen > 2) 3080dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3081dae100c2SFred Isaman } 30821da177e4SLinus Torvalds } 30831da177e4SLinus Torvalds return 0; 3084c0eae66eSBenny Halevy out_overflow: 3085c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3086c0eae66eSBenny Halevy return -EIO; 30871da177e4SLinus Torvalds } 30881da177e4SLinus Torvalds 3089256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 30901da177e4SLinus Torvalds { 30918687b63aSAl Viro __be32 *p; 30921da177e4SLinus Torvalds 3093c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3094c0eae66eSBenny Halevy if (unlikely(!p)) 3095c0eae66eSBenny Halevy goto out_overflow; 3096cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3097256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 30981da177e4SLinus Torvalds return 0; 3099c0eae66eSBenny Halevy out_overflow: 3100c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3101c0eae66eSBenny Halevy return -EIO; 31021da177e4SLinus Torvalds } 31031da177e4SLinus Torvalds 31041da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31051da177e4SLinus Torvalds { 31061da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31073388bff5SRoman Borisov int ret; 31083388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31093388bff5SRoman Borisov if (unlikely(ret < 0)) 31103388bff5SRoman Borisov return ret; 31111da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31121da177e4SLinus Torvalds } else 3113dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3114dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3115dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31161da177e4SLinus Torvalds return 0; 31171da177e4SLinus Torvalds } 31181da177e4SLinus Torvalds 31191da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31201da177e4SLinus Torvalds { 31218687b63aSAl Viro __be32 *p; 3122409924e4STrond Myklebust int ret = 0; 31231da177e4SLinus Torvalds 31241da177e4SLinus Torvalds *type = 0; 31251da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31261da177e4SLinus Torvalds return -EIO; 31271da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3128c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3129c0eae66eSBenny Halevy if (unlikely(!p)) 3130c0eae66eSBenny Halevy goto out_overflow; 3131cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31321da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31333110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31341da177e4SLinus Torvalds return -EIO; 31351da177e4SLinus Torvalds } 31361da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3137409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 31381da177e4SLinus Torvalds } 3139bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3140409924e4STrond Myklebust return ret; 3141c0eae66eSBenny Halevy out_overflow: 3142c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3143c0eae66eSBenny Halevy return -EIO; 31441da177e4SLinus Torvalds } 31451da177e4SLinus Torvalds 3146264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3147264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3148264e6351SChuck Lever { 3149264e6351SChuck Lever __be32 *p; 3150264e6351SChuck Lever 3151264e6351SChuck Lever *type = 0; 3152264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3153264e6351SChuck Lever return -EIO; 3154264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3155264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3156264e6351SChuck Lever if (unlikely(!p)) 3157264e6351SChuck Lever goto out_overflow; 3158264e6351SChuck Lever *type = be32_to_cpup(p); 3159264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3160264e6351SChuck Lever } 3161264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3162264e6351SChuck Lever return 0; 3163264e6351SChuck Lever out_overflow: 3164264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3165264e6351SChuck Lever return -EIO; 3166264e6351SChuck Lever } 3167264e6351SChuck Lever 31681da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 31691da177e4SLinus Torvalds { 31708687b63aSAl Viro __be32 *p; 3171409924e4STrond Myklebust int ret = 0; 31721da177e4SLinus Torvalds 31731da177e4SLinus Torvalds *change = 0; 31741da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 31751da177e4SLinus Torvalds return -EIO; 31761da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3177c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3178c0eae66eSBenny Halevy if (unlikely(!p)) 3179c0eae66eSBenny Halevy goto out_overflow; 3180cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 31811da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3182409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 31831da177e4SLinus Torvalds } 31843110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 31851da177e4SLinus Torvalds (unsigned long long)*change); 3186409924e4STrond Myklebust return ret; 3187c0eae66eSBenny Halevy out_overflow: 3188c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3189c0eae66eSBenny Halevy return -EIO; 31901da177e4SLinus Torvalds } 31911da177e4SLinus Torvalds 31921da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 31931da177e4SLinus Torvalds { 31948687b63aSAl Viro __be32 *p; 3195409924e4STrond Myklebust int ret = 0; 31961da177e4SLinus Torvalds 31971da177e4SLinus Torvalds *size = 0; 31981da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 31991da177e4SLinus Torvalds return -EIO; 32001da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3201c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3202c0eae66eSBenny Halevy if (unlikely(!p)) 3203c0eae66eSBenny Halevy goto out_overflow; 3204cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3206409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32071da177e4SLinus Torvalds } 32083110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3209409924e4STrond Myklebust return ret; 3210c0eae66eSBenny Halevy out_overflow: 3211c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3212c0eae66eSBenny Halevy return -EIO; 32131da177e4SLinus Torvalds } 32141da177e4SLinus Torvalds 32151da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32161da177e4SLinus Torvalds { 32178687b63aSAl Viro __be32 *p; 32181da177e4SLinus Torvalds 32191da177e4SLinus Torvalds *res = 0; 32201da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32211da177e4SLinus Torvalds return -EIO; 32221da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3223c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3224c0eae66eSBenny Halevy if (unlikely(!p)) 3225c0eae66eSBenny Halevy goto out_overflow; 3226cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32281da177e4SLinus Torvalds } 32293110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32301da177e4SLinus Torvalds return 0; 3231c0eae66eSBenny Halevy out_overflow: 3232c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3233c0eae66eSBenny Halevy return -EIO; 32341da177e4SLinus Torvalds } 32351da177e4SLinus Torvalds 32361da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32371da177e4SLinus Torvalds { 32388687b63aSAl Viro __be32 *p; 32391da177e4SLinus Torvalds 32401da177e4SLinus Torvalds *res = 0; 32411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32421da177e4SLinus Torvalds return -EIO; 32431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3244c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3245c0eae66eSBenny Halevy if (unlikely(!p)) 3246c0eae66eSBenny Halevy goto out_overflow; 3247cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32481da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 32491da177e4SLinus Torvalds } 32503110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 32511da177e4SLinus Torvalds return 0; 3252c0eae66eSBenny Halevy out_overflow: 3253c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3254c0eae66eSBenny Halevy return -EIO; 32551da177e4SLinus Torvalds } 32561da177e4SLinus Torvalds 32578b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 32581da177e4SLinus Torvalds { 32598687b63aSAl Viro __be32 *p; 3260409924e4STrond Myklebust int ret = 0; 32611da177e4SLinus Torvalds 32621da177e4SLinus Torvalds fsid->major = 0; 32631da177e4SLinus Torvalds fsid->minor = 0; 32641da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 32651da177e4SLinus Torvalds return -EIO; 32661da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3267c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3268c0eae66eSBenny Halevy if (unlikely(!p)) 3269c0eae66eSBenny Halevy goto out_overflow; 32703ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3271cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 32721da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3273409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 32741da177e4SLinus Torvalds } 32753110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 32761da177e4SLinus Torvalds (unsigned long long)fsid->major, 32771da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3278409924e4STrond Myklebust return ret; 3279c0eae66eSBenny Halevy out_overflow: 3280c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3281c0eae66eSBenny Halevy return -EIO; 32821da177e4SLinus Torvalds } 32831da177e4SLinus Torvalds 32841da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32851da177e4SLinus Torvalds { 32868687b63aSAl Viro __be32 *p; 32871da177e4SLinus Torvalds 32881da177e4SLinus Torvalds *res = 60; 32891da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 32901da177e4SLinus Torvalds return -EIO; 32911da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3292c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3293c0eae66eSBenny Halevy if (unlikely(!p)) 3294c0eae66eSBenny Halevy goto out_overflow; 3295cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32961da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 32971da177e4SLinus Torvalds } 32983110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 32991da177e4SLinus Torvalds return 0; 3300c0eae66eSBenny Halevy out_overflow: 3301c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3302c0eae66eSBenny Halevy return -EIO; 33031da177e4SLinus Torvalds } 33041da177e4SLinus Torvalds 3305ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3306ae42c70aSBryan Schumaker { 3307ae42c70aSBryan Schumaker __be32 *p; 3308ae42c70aSBryan Schumaker 3309ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3310ae42c70aSBryan Schumaker return -EIO; 3311ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3312ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3313ae42c70aSBryan Schumaker if (unlikely(!p)) 3314ae42c70aSBryan Schumaker goto out_overflow; 3315ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3316ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3317ae42c70aSBryan Schumaker } 3318ae42c70aSBryan Schumaker return 0; 3319ae42c70aSBryan Schumaker out_overflow: 3320ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3321ae42c70aSBryan Schumaker return -EIO; 3322ae42c70aSBryan Schumaker } 3323ae42c70aSBryan Schumaker 3324ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3325ae42c70aSBryan Schumaker { 3326ae42c70aSBryan Schumaker __be32 *p; 3327ae42c70aSBryan Schumaker int len; 3328ae42c70aSBryan Schumaker 33297ad07353STrond Myklebust if (fh != NULL) 3330ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3331ae42c70aSBryan Schumaker 3332ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3333ae42c70aSBryan Schumaker return -EIO; 3334ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3335ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3336ae42c70aSBryan Schumaker if (unlikely(!p)) 3337ae42c70aSBryan Schumaker goto out_overflow; 3338ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3339ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3340ae42c70aSBryan Schumaker return -EIO; 3341ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3342ae42c70aSBryan Schumaker if (unlikely(!p)) 3343ae42c70aSBryan Schumaker goto out_overflow; 33447ad07353STrond Myklebust if (fh != NULL) { 3345ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 33467ad07353STrond Myklebust fh->size = len; 33477ad07353STrond Myklebust } 3348ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3349ae42c70aSBryan Schumaker } 3350ae42c70aSBryan Schumaker return 0; 3351ae42c70aSBryan Schumaker out_overflow: 3352ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3353ae42c70aSBryan Schumaker return -EIO; 3354ae42c70aSBryan Schumaker } 3355ae42c70aSBryan Schumaker 33561da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33571da177e4SLinus Torvalds { 33588687b63aSAl Viro __be32 *p; 33591da177e4SLinus Torvalds 33601da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 33611da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 33621da177e4SLinus Torvalds return -EIO; 33631da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3364c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3365c0eae66eSBenny Halevy if (unlikely(!p)) 3366c0eae66eSBenny Halevy goto out_overflow; 3367cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33681da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 33691da177e4SLinus Torvalds } 33703110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 33711da177e4SLinus Torvalds return 0; 3372c0eae66eSBenny Halevy out_overflow: 3373c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3374c0eae66eSBenny Halevy return -EIO; 33751da177e4SLinus Torvalds } 33761da177e4SLinus Torvalds 33771da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 33781da177e4SLinus Torvalds { 33798687b63aSAl Viro __be32 *p; 3380409924e4STrond Myklebust int ret = 0; 33811da177e4SLinus Torvalds 33821da177e4SLinus Torvalds *fileid = 0; 33831da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 33841da177e4SLinus Torvalds return -EIO; 33851da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3386c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3387c0eae66eSBenny Halevy if (unlikely(!p)) 3388c0eae66eSBenny Halevy goto out_overflow; 3389cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 33901da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3391409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 33921da177e4SLinus Torvalds } 33933110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3394409924e4STrond Myklebust return ret; 3395c0eae66eSBenny Halevy out_overflow: 3396c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3397c0eae66eSBenny Halevy return -EIO; 33981da177e4SLinus Torvalds } 33991da177e4SLinus Torvalds 340099baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 340199baf625SManoj Naik { 34028687b63aSAl Viro __be32 *p; 3403409924e4STrond Myklebust int ret = 0; 340499baf625SManoj Naik 340599baf625SManoj Naik *fileid = 0; 340699baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 340799baf625SManoj Naik return -EIO; 340899baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3409c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3410c0eae66eSBenny Halevy if (unlikely(!p)) 3411c0eae66eSBenny Halevy goto out_overflow; 3412cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 341399baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 341428331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 341599baf625SManoj Naik } 34163110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3417409924e4STrond Myklebust return ret; 3418c0eae66eSBenny Halevy out_overflow: 3419c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3420c0eae66eSBenny Halevy return -EIO; 342199baf625SManoj Naik } 342299baf625SManoj Naik 34231da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34241da177e4SLinus Torvalds { 34258687b63aSAl Viro __be32 *p; 34261da177e4SLinus Torvalds int status = 0; 34271da177e4SLinus Torvalds 34281da177e4SLinus Torvalds *res = 0; 34291da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34301da177e4SLinus Torvalds return -EIO; 34311da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3432c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3433c0eae66eSBenny Halevy if (unlikely(!p)) 3434c0eae66eSBenny Halevy goto out_overflow; 3435cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34361da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34371da177e4SLinus Torvalds } 34383110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34391da177e4SLinus Torvalds return status; 3440c0eae66eSBenny Halevy out_overflow: 3441c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3442c0eae66eSBenny Halevy return -EIO; 34431da177e4SLinus Torvalds } 34441da177e4SLinus Torvalds 34451da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34461da177e4SLinus Torvalds { 34478687b63aSAl Viro __be32 *p; 34481da177e4SLinus Torvalds int status = 0; 34491da177e4SLinus Torvalds 34501da177e4SLinus Torvalds *res = 0; 34511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 34521da177e4SLinus Torvalds return -EIO; 34531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3454c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3455c0eae66eSBenny Halevy if (unlikely(!p)) 3456c0eae66eSBenny Halevy goto out_overflow; 3457cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 34591da177e4SLinus Torvalds } 34603110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 34611da177e4SLinus Torvalds return status; 3462c0eae66eSBenny Halevy out_overflow: 3463c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3464c0eae66eSBenny Halevy return -EIO; 34651da177e4SLinus Torvalds } 34661da177e4SLinus Torvalds 34671da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34681da177e4SLinus Torvalds { 34698687b63aSAl Viro __be32 *p; 34701da177e4SLinus Torvalds int status = 0; 34711da177e4SLinus Torvalds 34721da177e4SLinus Torvalds *res = 0; 34731da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 34741da177e4SLinus Torvalds return -EIO; 34751da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3476c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3477c0eae66eSBenny Halevy if (unlikely(!p)) 3478c0eae66eSBenny Halevy goto out_overflow; 3479cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 34811da177e4SLinus Torvalds } 34823110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 34831da177e4SLinus Torvalds return status; 3484c0eae66eSBenny Halevy out_overflow: 3485c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3486c0eae66eSBenny Halevy return -EIO; 34871da177e4SLinus Torvalds } 34881da177e4SLinus Torvalds 34897aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 34907aaa0b3bSManoj Naik { 3491464ad6b1SChuck Lever u32 n; 34928687b63aSAl Viro __be32 *p; 34937aaa0b3bSManoj Naik int status = 0; 34947aaa0b3bSManoj Naik 3495c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3496c0eae66eSBenny Halevy if (unlikely(!p)) 3497c0eae66eSBenny Halevy goto out_overflow; 3498cccddf4fSBenny Halevy n = be32_to_cpup(p); 349933a43f28SAndy Adamson if (n == 0) 350033a43f28SAndy Adamson goto root_path; 350102a2976cSChuck Lever dprintk("pathname4: "); 35027aaa0b3bSManoj Naik path->ncomponents = 0; 35037aaa0b3bSManoj Naik while (path->ncomponents < n) { 35047aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35057aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35067aaa0b3bSManoj Naik if (unlikely(status != 0)) 35077aaa0b3bSManoj Naik goto out_eio; 350895a13f7bSTrond Myklebust ifdebug (XDR) 350902a2976cSChuck Lever pr_cont("%s%.*s ", 351002a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 351102a2976cSChuck Lever component->len, component->data); 35127aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 35137aaa0b3bSManoj Naik path->ncomponents++; 35147aaa0b3bSManoj Naik else { 35157aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 35167aaa0b3bSManoj Naik goto out_eio; 35177aaa0b3bSManoj Naik } 35187aaa0b3bSManoj Naik } 35197aaa0b3bSManoj Naik out: 35207aaa0b3bSManoj Naik return status; 352133a43f28SAndy Adamson root_path: 352233a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 352333a43f28SAndy Adamson path->ncomponents = 1; 352433a43f28SAndy Adamson path->components[0].len=0; 352533a43f28SAndy Adamson path->components[0].data=NULL; 352602a2976cSChuck Lever dprintk("pathname4: /\n"); 352733a43f28SAndy Adamson goto out; 35287aaa0b3bSManoj Naik out_eio: 35297aaa0b3bSManoj Naik dprintk(" status %d", status); 35307aaa0b3bSManoj Naik status = -EIO; 35317aaa0b3bSManoj Naik goto out; 3532c0eae66eSBenny Halevy out_overflow: 3533c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3534c0eae66eSBenny Halevy return -EIO; 35357aaa0b3bSManoj Naik } 35367aaa0b3bSManoj Naik 35377aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3538683b57b4STrond Myklebust { 3539683b57b4STrond Myklebust int n; 35408687b63aSAl Viro __be32 *p; 3541683b57b4STrond Myklebust int status = -EIO; 3542683b57b4STrond Myklebust 3543683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3544683b57b4STrond Myklebust goto out; 3545683b57b4STrond Myklebust status = 0; 3546683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3547683b57b4STrond Myklebust goto out; 35488b7e3f49STrond Myklebust status = -EIO; 35498b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 35508b7e3f49STrond Myklebust if (unlikely(res == NULL)) 35518b7e3f49STrond Myklebust goto out; 355202a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 35537aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3554683b57b4STrond Myklebust if (unlikely(status != 0)) 3555683b57b4STrond Myklebust goto out; 3556c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3557c0eae66eSBenny Halevy if (unlikely(!p)) 3558c0eae66eSBenny Halevy goto out_overflow; 3559cccddf4fSBenny Halevy n = be32_to_cpup(p); 3560683b57b4STrond Myklebust if (n <= 0) 3561683b57b4STrond Myklebust goto out_eio; 3562683b57b4STrond Myklebust res->nlocations = 0; 3563683b57b4STrond Myklebust while (res->nlocations < n) { 3564464ad6b1SChuck Lever u32 m; 35657aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3566683b57b4STrond Myklebust 3567c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3568c0eae66eSBenny Halevy if (unlikely(!p)) 3569c0eae66eSBenny Halevy goto out_overflow; 3570cccddf4fSBenny Halevy m = be32_to_cpup(p); 35717aaa0b3bSManoj Naik 35727aaa0b3bSManoj Naik loc->nservers = 0; 357302a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 35747aaa0b3bSManoj Naik while (loc->nservers < m) { 35757aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 35767aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3577683b57b4STrond Myklebust if (unlikely(status != 0)) 3578683b57b4STrond Myklebust goto out_eio; 35797aaa0b3bSManoj Naik dprintk("%s ", server->data); 35807aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 35817aaa0b3bSManoj Naik loc->nservers++; 35827aaa0b3bSManoj Naik else { 3583464ad6b1SChuck Lever unsigned int i; 3584464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3585464ad6b1SChuck Lever "returned for location %u\n", 35863110ff80SHarvey Harrison __func__, 3587464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3588464ad6b1SChuck Lever m, res->nlocations); 35897aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 35902e42c3e2STrond Myklebust unsigned int len; 35917aaa0b3bSManoj Naik char *data; 35927aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3593683b57b4STrond Myklebust if (unlikely(status != 0)) 3594683b57b4STrond Myklebust goto out_eio; 35957aaa0b3bSManoj Naik } 35967aaa0b3bSManoj Naik } 35977aaa0b3bSManoj Naik } 35987aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 35997aaa0b3bSManoj Naik if (unlikely(status != 0)) 36007aaa0b3bSManoj Naik goto out_eio; 36017aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3602683b57b4STrond Myklebust res->nlocations++; 3603683b57b4STrond Myklebust } 3604409924e4STrond Myklebust if (res->nlocations != 0) 360581934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3606683b57b4STrond Myklebust out: 36073110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3608683b57b4STrond Myklebust return status; 3609c0eae66eSBenny Halevy out_overflow: 3610c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3611683b57b4STrond Myklebust out_eio: 3612683b57b4STrond Myklebust status = -EIO; 3613683b57b4STrond Myklebust goto out; 3614683b57b4STrond Myklebust } 3615683b57b4STrond Myklebust 36161da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36171da177e4SLinus Torvalds { 36188687b63aSAl Viro __be32 *p; 36191da177e4SLinus Torvalds int status = 0; 36201da177e4SLinus Torvalds 36211da177e4SLinus Torvalds *res = 0; 36221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36231da177e4SLinus Torvalds return -EIO; 36241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3625c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3626c0eae66eSBenny Halevy if (unlikely(!p)) 3627c0eae66eSBenny Halevy goto out_overflow; 3628cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36301da177e4SLinus Torvalds } 36313110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36321da177e4SLinus Torvalds return status; 3633c0eae66eSBenny Halevy out_overflow: 3634c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3635c0eae66eSBenny Halevy return -EIO; 36361da177e4SLinus Torvalds } 36371da177e4SLinus Torvalds 36381da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36391da177e4SLinus Torvalds { 36408687b63aSAl Viro __be32 *p; 36411da177e4SLinus Torvalds int status = 0; 36421da177e4SLinus Torvalds 36431da177e4SLinus Torvalds *maxlink = 1; 36441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 36451da177e4SLinus Torvalds return -EIO; 36461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3647c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3648c0eae66eSBenny Halevy if (unlikely(!p)) 3649c0eae66eSBenny Halevy goto out_overflow; 3650cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 36511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 36521da177e4SLinus Torvalds } 36533110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 36541da177e4SLinus Torvalds return status; 3655c0eae66eSBenny Halevy out_overflow: 3656c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3657c0eae66eSBenny Halevy return -EIO; 36581da177e4SLinus Torvalds } 36591da177e4SLinus Torvalds 36601da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 36611da177e4SLinus Torvalds { 36628687b63aSAl Viro __be32 *p; 36631da177e4SLinus Torvalds int status = 0; 36641da177e4SLinus Torvalds 36651da177e4SLinus Torvalds *maxname = 1024; 36661da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 36671da177e4SLinus Torvalds return -EIO; 36681da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3669c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3670c0eae66eSBenny Halevy if (unlikely(!p)) 3671c0eae66eSBenny Halevy goto out_overflow; 3672cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 36731da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 36741da177e4SLinus Torvalds } 36753110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 36761da177e4SLinus Torvalds return status; 3677c0eae66eSBenny Halevy out_overflow: 3678c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3679c0eae66eSBenny Halevy return -EIO; 36801da177e4SLinus Torvalds } 36811da177e4SLinus Torvalds 36821da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36831da177e4SLinus Torvalds { 36848687b63aSAl Viro __be32 *p; 36851da177e4SLinus Torvalds int status = 0; 36861da177e4SLinus Torvalds 36871da177e4SLinus Torvalds *res = 1024; 36881da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 36891da177e4SLinus Torvalds return -EIO; 36901da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 36911da177e4SLinus Torvalds uint64_t maxread; 3692c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3693c0eae66eSBenny Halevy if (unlikely(!p)) 3694c0eae66eSBenny Halevy goto out_overflow; 3695cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 36961da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 36971da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 36981da177e4SLinus Torvalds *res = (uint32_t)maxread; 36991da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37001da177e4SLinus Torvalds } 37013110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37021da177e4SLinus Torvalds return status; 3703c0eae66eSBenny Halevy out_overflow: 3704c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3705c0eae66eSBenny Halevy return -EIO; 37061da177e4SLinus Torvalds } 37071da177e4SLinus Torvalds 37081da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37091da177e4SLinus Torvalds { 37108687b63aSAl Viro __be32 *p; 37111da177e4SLinus Torvalds int status = 0; 37121da177e4SLinus Torvalds 37131da177e4SLinus Torvalds *res = 1024; 37141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37151da177e4SLinus Torvalds return -EIO; 37161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37171da177e4SLinus Torvalds uint64_t maxwrite; 3718c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3719c0eae66eSBenny Halevy if (unlikely(!p)) 3720c0eae66eSBenny Halevy goto out_overflow; 3721cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37221da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37231da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37241da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37261da177e4SLinus Torvalds } 37273110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37281da177e4SLinus Torvalds return status; 3729c0eae66eSBenny Halevy out_overflow: 3730c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3731c0eae66eSBenny Halevy return -EIO; 37321da177e4SLinus Torvalds } 37331da177e4SLinus Torvalds 3734bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37351da177e4SLinus Torvalds { 3736bca79478STrond Myklebust uint32_t tmp; 37378687b63aSAl Viro __be32 *p; 3738409924e4STrond Myklebust int ret = 0; 37391da177e4SLinus Torvalds 37401da177e4SLinus Torvalds *mode = 0; 37411da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 37421da177e4SLinus Torvalds return -EIO; 37431da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3744c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3745c0eae66eSBenny Halevy if (unlikely(!p)) 3746c0eae66eSBenny Halevy goto out_overflow; 3747cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3748bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 37491da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3750409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 37511da177e4SLinus Torvalds } 37523110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3753409924e4STrond Myklebust return ret; 3754c0eae66eSBenny Halevy out_overflow: 3755c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3756c0eae66eSBenny Halevy return -EIO; 37571da177e4SLinus Torvalds } 37581da177e4SLinus Torvalds 37591da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 37601da177e4SLinus Torvalds { 37618687b63aSAl Viro __be32 *p; 3762409924e4STrond Myklebust int ret = 0; 37631da177e4SLinus Torvalds 37641da177e4SLinus Torvalds *nlink = 1; 37651da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 37661da177e4SLinus Torvalds return -EIO; 37671da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3768c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3769c0eae66eSBenny Halevy if (unlikely(!p)) 3770c0eae66eSBenny Halevy goto out_overflow; 3771cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 37721da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3773409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 37741da177e4SLinus Torvalds } 37753110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3776409924e4STrond Myklebust return ret; 3777c0eae66eSBenny Halevy out_overflow: 3778c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3779c0eae66eSBenny Halevy return -EIO; 37801da177e4SLinus Torvalds } 37811da177e4SLinus Torvalds 378280e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 37836926afd1STrond Myklebust const struct nfs_server *server, uint32_t *uid, 37846926afd1STrond Myklebust struct nfs4_string *owner_name) 37851da177e4SLinus Torvalds { 37868687b63aSAl Viro uint32_t len; 37878687b63aSAl Viro __be32 *p; 3788409924e4STrond Myklebust int ret = 0; 37891da177e4SLinus Torvalds 37901da177e4SLinus Torvalds *uid = -2; 37911da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 37921da177e4SLinus Torvalds return -EIO; 37931da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3794c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3795c0eae66eSBenny Halevy if (unlikely(!p)) 3796c0eae66eSBenny Halevy goto out_overflow; 3797cccddf4fSBenny Halevy len = be32_to_cpup(p); 3798c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3799c0eae66eSBenny Halevy if (unlikely(!p)) 3800c0eae66eSBenny Halevy goto out_overflow; 38016926afd1STrond Myklebust if (owner_name != NULL) { 38026926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38036926afd1STrond Myklebust if (owner_name->data != NULL) { 38046926afd1STrond Myklebust owner_name->len = len; 38056926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38066926afd1STrond Myklebust } 380780e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3808e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3809409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3810409924e4STrond Myklebust else 38111da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38123110ff80SHarvey Harrison __func__); 38131da177e4SLinus Torvalds } else 3814fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38153110ff80SHarvey Harrison __func__, len); 38161da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38171da177e4SLinus Torvalds } 38183110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3819409924e4STrond Myklebust return ret; 3820c0eae66eSBenny Halevy out_overflow: 3821c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3822c0eae66eSBenny Halevy return -EIO; 38231da177e4SLinus Torvalds } 38241da177e4SLinus Torvalds 382580e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 38266926afd1STrond Myklebust const struct nfs_server *server, uint32_t *gid, 38276926afd1STrond Myklebust struct nfs4_string *group_name) 38281da177e4SLinus Torvalds { 38298687b63aSAl Viro uint32_t len; 38308687b63aSAl Viro __be32 *p; 3831409924e4STrond Myklebust int ret = 0; 38321da177e4SLinus Torvalds 38331da177e4SLinus Torvalds *gid = -2; 38341da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38351da177e4SLinus Torvalds return -EIO; 38361da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3837c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3838c0eae66eSBenny Halevy if (unlikely(!p)) 3839c0eae66eSBenny Halevy goto out_overflow; 3840cccddf4fSBenny Halevy len = be32_to_cpup(p); 3841c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3842c0eae66eSBenny Halevy if (unlikely(!p)) 3843c0eae66eSBenny Halevy goto out_overflow; 38446926afd1STrond Myklebust if (group_name != NULL) { 38456926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 38466926afd1STrond Myklebust if (group_name->data != NULL) { 38476926afd1STrond Myklebust group_name->len = len; 38486926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 38496926afd1STrond Myklebust } 385080e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3851e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3852409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3853409924e4STrond Myklebust else 38541da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 38553110ff80SHarvey Harrison __func__); 38561da177e4SLinus Torvalds } else 3857fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38583110ff80SHarvey Harrison __func__, len); 38591da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 38601da177e4SLinus Torvalds } 38613110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3862409924e4STrond Myklebust return ret; 3863c0eae66eSBenny Halevy out_overflow: 3864c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3865c0eae66eSBenny Halevy return -EIO; 38661da177e4SLinus Torvalds } 38671da177e4SLinus Torvalds 38681da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 38691da177e4SLinus Torvalds { 38708687b63aSAl Viro uint32_t major = 0, minor = 0; 38718687b63aSAl Viro __be32 *p; 3872409924e4STrond Myklebust int ret = 0; 38731da177e4SLinus Torvalds 38741da177e4SLinus Torvalds *rdev = MKDEV(0,0); 38751da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 38761da177e4SLinus Torvalds return -EIO; 38771da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 38781da177e4SLinus Torvalds dev_t tmp; 38791da177e4SLinus Torvalds 3880c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3881c0eae66eSBenny Halevy if (unlikely(!p)) 3882c0eae66eSBenny Halevy goto out_overflow; 38836f723f77SBenny Halevy major = be32_to_cpup(p++); 3884cccddf4fSBenny Halevy minor = be32_to_cpup(p); 38851da177e4SLinus Torvalds tmp = MKDEV(major, minor); 38861da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 38871da177e4SLinus Torvalds *rdev = tmp; 38881da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3889409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 38901da177e4SLinus Torvalds } 38913110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3892409924e4STrond Myklebust return ret; 3893c0eae66eSBenny Halevy out_overflow: 3894c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3895c0eae66eSBenny Halevy return -EIO; 38961da177e4SLinus Torvalds } 38971da177e4SLinus Torvalds 38981da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 38991da177e4SLinus Torvalds { 39008687b63aSAl Viro __be32 *p; 39011da177e4SLinus Torvalds int status = 0; 39021da177e4SLinus Torvalds 39031da177e4SLinus Torvalds *res = 0; 39041da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39051da177e4SLinus Torvalds return -EIO; 39061da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3907c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3908c0eae66eSBenny Halevy if (unlikely(!p)) 3909c0eae66eSBenny Halevy goto out_overflow; 3910cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39111da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39121da177e4SLinus Torvalds } 39133110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39141da177e4SLinus Torvalds return status; 3915c0eae66eSBenny Halevy out_overflow: 3916c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3917c0eae66eSBenny Halevy return -EIO; 39181da177e4SLinus Torvalds } 39191da177e4SLinus Torvalds 39201da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39211da177e4SLinus Torvalds { 39228687b63aSAl Viro __be32 *p; 39231da177e4SLinus Torvalds int status = 0; 39241da177e4SLinus Torvalds 39251da177e4SLinus Torvalds *res = 0; 39261da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39271da177e4SLinus Torvalds return -EIO; 39281da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3929c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3930c0eae66eSBenny Halevy if (unlikely(!p)) 3931c0eae66eSBenny Halevy goto out_overflow; 3932cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39331da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39341da177e4SLinus Torvalds } 39353110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39361da177e4SLinus Torvalds return status; 3937c0eae66eSBenny Halevy out_overflow: 3938c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3939c0eae66eSBenny Halevy return -EIO; 39401da177e4SLinus Torvalds } 39411da177e4SLinus Torvalds 39421da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39431da177e4SLinus Torvalds { 39448687b63aSAl Viro __be32 *p; 39451da177e4SLinus Torvalds int status = 0; 39461da177e4SLinus Torvalds 39471da177e4SLinus Torvalds *res = 0; 39481da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 39491da177e4SLinus Torvalds return -EIO; 39501da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3951c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3952c0eae66eSBenny Halevy if (unlikely(!p)) 3953c0eae66eSBenny Halevy goto out_overflow; 3954cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39551da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 39561da177e4SLinus Torvalds } 39573110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 39581da177e4SLinus Torvalds return status; 3959c0eae66eSBenny Halevy out_overflow: 3960c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3961c0eae66eSBenny Halevy return -EIO; 39621da177e4SLinus Torvalds } 39631da177e4SLinus Torvalds 39641da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 39651da177e4SLinus Torvalds { 39668687b63aSAl Viro __be32 *p; 3967409924e4STrond Myklebust int ret = 0; 39681da177e4SLinus Torvalds 39691da177e4SLinus Torvalds *used = 0; 39701da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 39711da177e4SLinus Torvalds return -EIO; 39721da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3973c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3974c0eae66eSBenny Halevy if (unlikely(!p)) 3975c0eae66eSBenny Halevy goto out_overflow; 3976cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 39771da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3978409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 39791da177e4SLinus Torvalds } 39803110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 39811da177e4SLinus Torvalds (unsigned long long)*used); 3982409924e4STrond Myklebust return ret; 3983c0eae66eSBenny Halevy out_overflow: 3984c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3985c0eae66eSBenny Halevy return -EIO; 39861da177e4SLinus Torvalds } 39871da177e4SLinus Torvalds 39881da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 39891da177e4SLinus Torvalds { 39908687b63aSAl Viro __be32 *p; 39911da177e4SLinus Torvalds uint64_t sec; 39921da177e4SLinus Torvalds uint32_t nsec; 39931da177e4SLinus Torvalds 3994c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3995c0eae66eSBenny Halevy if (unlikely(!p)) 3996c0eae66eSBenny Halevy goto out_overflow; 39973ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3998cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 39991da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40001da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40011da177e4SLinus Torvalds return 0; 4002c0eae66eSBenny Halevy out_overflow: 4003c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4004c0eae66eSBenny Halevy return -EIO; 40051da177e4SLinus Torvalds } 40061da177e4SLinus Torvalds 40071da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40081da177e4SLinus Torvalds { 40091da177e4SLinus Torvalds int status = 0; 40101da177e4SLinus Torvalds 40111da177e4SLinus Torvalds time->tv_sec = 0; 40121da177e4SLinus Torvalds time->tv_nsec = 0; 40131da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40141da177e4SLinus Torvalds return -EIO; 40151da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40161da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4017409924e4STrond Myklebust if (status == 0) 4018409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40191da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40201da177e4SLinus Torvalds } 40213110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40221da177e4SLinus Torvalds return status; 40231da177e4SLinus Torvalds } 40241da177e4SLinus Torvalds 40251da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40261da177e4SLinus Torvalds { 40271da177e4SLinus Torvalds int status = 0; 40281da177e4SLinus Torvalds 40291da177e4SLinus Torvalds time->tv_sec = 0; 40301da177e4SLinus Torvalds time->tv_nsec = 0; 40311da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40321da177e4SLinus Torvalds return -EIO; 40331da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40341da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4035409924e4STrond Myklebust if (status == 0) 4036409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40371da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40381da177e4SLinus Torvalds } 40393110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40401da177e4SLinus Torvalds return status; 40411da177e4SLinus Torvalds } 40421da177e4SLinus Torvalds 404355b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 404455b6e774SRicardo Labiaga struct timespec *time) 404555b6e774SRicardo Labiaga { 404655b6e774SRicardo Labiaga int status = 0; 404755b6e774SRicardo Labiaga 404855b6e774SRicardo Labiaga time->tv_sec = 0; 404955b6e774SRicardo Labiaga time->tv_nsec = 0; 405055b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 405155b6e774SRicardo Labiaga return -EIO; 405255b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 405355b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 405455b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 405555b6e774SRicardo Labiaga } 405655b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 405755b6e774SRicardo Labiaga (long)time->tv_nsec); 405855b6e774SRicardo Labiaga return status; 405955b6e774SRicardo Labiaga } 406055b6e774SRicardo Labiaga 40611da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40621da177e4SLinus Torvalds { 40631da177e4SLinus Torvalds int status = 0; 40641da177e4SLinus Torvalds 40651da177e4SLinus Torvalds time->tv_sec = 0; 40661da177e4SLinus Torvalds time->tv_nsec = 0; 40671da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 40681da177e4SLinus Torvalds return -EIO; 40691da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 40701da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4071409924e4STrond Myklebust if (status == 0) 4072409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 40731da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 40741da177e4SLinus Torvalds } 40753110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 40761da177e4SLinus Torvalds return status; 40771da177e4SLinus Torvalds } 40781da177e4SLinus Torvalds 4079256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 40801da177e4SLinus Torvalds { 40811da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4082256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 40831da177e4SLinus Torvalds 40841da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4085fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4086fe82a183SChuck Lever "%u %c %u\n", 40873110ff80SHarvey Harrison __func__, 40881da177e4SLinus Torvalds attrwords << 2, 40891da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 40901da177e4SLinus Torvalds nwords << 2); 40911da177e4SLinus Torvalds return -EIO; 40921da177e4SLinus Torvalds } 40931da177e4SLinus Torvalds return 0; 40941da177e4SLinus Torvalds } 40951da177e4SLinus Torvalds 40961da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40971da177e4SLinus Torvalds { 40988687b63aSAl Viro __be32 *p; 40991da177e4SLinus Torvalds 4100c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4101c0eae66eSBenny Halevy if (unlikely(!p)) 4102c0eae66eSBenny Halevy goto out_overflow; 41036f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 41043ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4105cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 41061da177e4SLinus Torvalds return 0; 4107c0eae66eSBenny Halevy out_overflow: 4108c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4109c0eae66eSBenny Halevy return -EIO; 41101da177e4SLinus Torvalds } 41111da177e4SLinus Torvalds 41126168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 41131da177e4SLinus Torvalds { 41148687b63aSAl Viro __be32 *p; 41151da177e4SLinus Torvalds uint32_t supp, acc; 41161da177e4SLinus Torvalds int status; 41171da177e4SLinus Torvalds 41181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41191da177e4SLinus Torvalds if (status) 41201da177e4SLinus Torvalds return status; 4121c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4122c0eae66eSBenny Halevy if (unlikely(!p)) 4123c0eae66eSBenny Halevy goto out_overflow; 41246f723f77SBenny Halevy supp = be32_to_cpup(p++); 4125cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41266168f62cSWeston Andros Adamson *supported = supp; 41276168f62cSWeston Andros Adamson *access = acc; 41281da177e4SLinus Torvalds return 0; 4129c0eae66eSBenny Halevy out_overflow: 4130c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4131c0eae66eSBenny Halevy return -EIO; 41321da177e4SLinus Torvalds } 41331da177e4SLinus Torvalds 413407d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41351da177e4SLinus Torvalds { 41368687b63aSAl Viro __be32 *p; 413707d30434SBenny Halevy 413807d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 413907d30434SBenny Halevy if (likely(p)) { 414007d30434SBenny Halevy memcpy(buf, p, len); 414107d30434SBenny Halevy return 0; 414207d30434SBenny Halevy } 414307d30434SBenny Halevy print_overflow_msg(__func__, xdr); 414407d30434SBenny Halevy return -EIO; 414507d30434SBenny Halevy } 414607d30434SBenny Halevy 414707d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 414807d30434SBenny Halevy { 41492d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 41501da177e4SLinus Torvalds } 41511da177e4SLinus Torvalds 41521da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 41531da177e4SLinus Torvalds { 41541da177e4SLinus Torvalds int status; 41551da177e4SLinus Torvalds 41561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4157c1d51931STrond Myklebust if (status != -EIO) 4158c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 415907d30434SBenny Halevy if (!status) 416007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41611da177e4SLinus Torvalds return status; 41621da177e4SLinus Torvalds } 41631da177e4SLinus Torvalds 4164db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4165db942bbdSBenny Halevy { 4166cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 41671da177e4SLinus Torvalds } 41681da177e4SLinus Torvalds 41692f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 41702f2c63bcSTrond Myklebust { 41712f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 41722f2c63bcSTrond Myklebust } 41732f2c63bcSTrond Myklebust 41740b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 41751da177e4SLinus Torvalds { 41761da177e4SLinus Torvalds int status; 41771da177e4SLinus Torvalds 41781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4179db942bbdSBenny Halevy if (!status) 41802f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 41811da177e4SLinus Torvalds return status; 41821da177e4SLinus Torvalds } 41831da177e4SLinus Torvalds 41841da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41851da177e4SLinus Torvalds { 41868687b63aSAl Viro __be32 *p; 41871da177e4SLinus Torvalds uint32_t bmlen; 41881da177e4SLinus Torvalds int status; 41891da177e4SLinus Torvalds 41901da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 41911da177e4SLinus Torvalds if (status) 41921da177e4SLinus Torvalds return status; 41931da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 41941da177e4SLinus Torvalds return status; 4195c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4196c0eae66eSBenny Halevy if (unlikely(!p)) 4197c0eae66eSBenny Halevy goto out_overflow; 4198cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4199c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4200c0eae66eSBenny Halevy if (likely(p)) 42011da177e4SLinus Torvalds return 0; 4202c0eae66eSBenny Halevy out_overflow: 4203c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4204c0eae66eSBenny Halevy return -EIO; 42051da177e4SLinus Torvalds } 42061da177e4SLinus Torvalds 42071da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 42081da177e4SLinus Torvalds { 4209256e48bbSTrond Myklebust unsigned int savep; 4210dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42111da177e4SLinus Torvalds int status; 42121da177e4SLinus Torvalds 42131da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42141da177e4SLinus Torvalds goto xdr_error; 42151da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42161da177e4SLinus Torvalds goto xdr_error; 42171da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42181da177e4SLinus Torvalds goto xdr_error; 42191da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42201da177e4SLinus Torvalds goto xdr_error; 4221264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4222264e6351SChuck Lever &res->fh_expire_type)) != 0) 4223264e6351SChuck Lever goto xdr_error; 42241da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42251da177e4SLinus Torvalds goto xdr_error; 42261da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42271da177e4SLinus Torvalds goto xdr_error; 42281da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42291da177e4SLinus Torvalds goto xdr_error; 42301da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42311da177e4SLinus Torvalds xdr_error: 42323110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42331da177e4SLinus Torvalds return status; 42341da177e4SLinus Torvalds } 42351da177e4SLinus Torvalds 42361da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42371da177e4SLinus Torvalds { 4238256e48bbSTrond Myklebust unsigned int savep; 4239dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42401da177e4SLinus Torvalds int status; 42411da177e4SLinus Torvalds 42421da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42431da177e4SLinus Torvalds goto xdr_error; 42441da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42451da177e4SLinus Torvalds goto xdr_error; 42461da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42471da177e4SLinus Torvalds goto xdr_error; 42481da177e4SLinus Torvalds 42491da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 42501da177e4SLinus Torvalds goto xdr_error; 42511da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 42521da177e4SLinus Torvalds goto xdr_error; 42531da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 42541da177e4SLinus Torvalds goto xdr_error; 42551da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 42561da177e4SLinus Torvalds goto xdr_error; 42571da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 42581da177e4SLinus Torvalds goto xdr_error; 42591da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 42601da177e4SLinus Torvalds goto xdr_error; 42611da177e4SLinus Torvalds 42621da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42631da177e4SLinus Torvalds xdr_error: 42643110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42651da177e4SLinus Torvalds return status; 42661da177e4SLinus Torvalds } 42671da177e4SLinus Torvalds 42681da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 42691da177e4SLinus Torvalds { 4270256e48bbSTrond Myklebust unsigned int savep; 4271dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42721da177e4SLinus Torvalds int status; 42731da177e4SLinus Torvalds 42741da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42751da177e4SLinus Torvalds goto xdr_error; 42761da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42771da177e4SLinus Torvalds goto xdr_error; 42781da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42791da177e4SLinus Torvalds goto xdr_error; 42801da177e4SLinus Torvalds 42811da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 42821da177e4SLinus Torvalds goto xdr_error; 42831da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 42841da177e4SLinus Torvalds goto xdr_error; 42851da177e4SLinus Torvalds 42861da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42871da177e4SLinus Torvalds xdr_error: 42883110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42891da177e4SLinus Torvalds return status; 42901da177e4SLinus Torvalds } 42911da177e4SLinus Torvalds 429288034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 429388034c3dSAndy Adamson uint32_t *bitmap, 429488034c3dSAndy Adamson uint64_t *res, 429588034c3dSAndy Adamson uint32_t hint_bit) 429688034c3dSAndy Adamson { 429788034c3dSAndy Adamson __be32 *p; 429888034c3dSAndy Adamson 429988034c3dSAndy Adamson *res = 0; 430088034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 430188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 430288034c3dSAndy Adamson if (unlikely(!p)) 430388034c3dSAndy Adamson goto out_overflow; 430488034c3dSAndy Adamson xdr_decode_hyper(p, res); 430588034c3dSAndy Adamson } 430688034c3dSAndy Adamson return 0; 430788034c3dSAndy Adamson out_overflow: 430888034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 430988034c3dSAndy Adamson return -EIO; 431088034c3dSAndy Adamson } 431188034c3dSAndy Adamson 431288034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 431388034c3dSAndy Adamson struct nfs4_threshold *res) 431488034c3dSAndy Adamson { 4315256e48bbSTrond Myklebust __be32 *p; 4316256e48bbSTrond Myklebust unsigned int savep; 431788034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 431888034c3dSAndy Adamson int status; 431988034c3dSAndy Adamson 432088034c3dSAndy Adamson /* layout type */ 432188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 432288034c3dSAndy Adamson if (unlikely(!p)) { 432388034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 432488034c3dSAndy Adamson return -EIO; 432588034c3dSAndy Adamson } 432688034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 432788034c3dSAndy Adamson 432888034c3dSAndy Adamson /* thi_hintset bitmap */ 432988034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 433088034c3dSAndy Adamson if (status < 0) 433188034c3dSAndy Adamson goto xdr_error; 433288034c3dSAndy Adamson 433388034c3dSAndy Adamson /* thi_hintlist length */ 433488034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 433588034c3dSAndy Adamson if (status < 0) 433688034c3dSAndy Adamson goto xdr_error; 433788034c3dSAndy Adamson /* thi_hintlist */ 433888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 433988034c3dSAndy Adamson if (status < 0) 434088034c3dSAndy Adamson goto xdr_error; 434188034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 434288034c3dSAndy Adamson if (status < 0) 434388034c3dSAndy Adamson goto xdr_error; 434488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 434588034c3dSAndy Adamson THRESHOLD_RD_IO); 434688034c3dSAndy Adamson if (status < 0) 434788034c3dSAndy Adamson goto xdr_error; 434888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 434988034c3dSAndy Adamson THRESHOLD_WR_IO); 435088034c3dSAndy Adamson if (status < 0) 435188034c3dSAndy Adamson goto xdr_error; 435288034c3dSAndy Adamson 435388034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 435488034c3dSAndy Adamson res->bm = bitmap[0]; 435588034c3dSAndy Adamson 435688034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 435788034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 435888034c3dSAndy Adamson res->wr_io_sz); 435988034c3dSAndy Adamson xdr_error: 436088034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 436188034c3dSAndy Adamson return status; 436288034c3dSAndy Adamson } 436388034c3dSAndy Adamson 436488034c3dSAndy Adamson /* 436588034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 436688034c3dSAndy Adamson */ 436788034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 436888034c3dSAndy Adamson uint32_t *bitmap, 436988034c3dSAndy Adamson struct nfs4_threshold *res) 437088034c3dSAndy Adamson { 437188034c3dSAndy Adamson __be32 *p; 437288034c3dSAndy Adamson int status = 0; 437388034c3dSAndy Adamson uint32_t num; 437488034c3dSAndy Adamson 437588034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 437688034c3dSAndy Adamson return -EIO; 4377029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 43781549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 43791549210fSTrond Myklebust if (unlikely(res == NULL)) 43801549210fSTrond Myklebust return -EREMOTEIO; 438188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 438288034c3dSAndy Adamson if (unlikely(!p)) 438388034c3dSAndy Adamson goto out_overflow; 438488034c3dSAndy Adamson num = be32_to_cpup(p); 438588034c3dSAndy Adamson if (num == 0) 438688034c3dSAndy Adamson return 0; 438788034c3dSAndy Adamson if (num > 1) 438888034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 438988034c3dSAndy Adamson "drivers per filesystem not supported\n", 439088034c3dSAndy Adamson __func__); 439188034c3dSAndy Adamson 439288034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4393029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 439488034c3dSAndy Adamson } 439588034c3dSAndy Adamson return status; 439688034c3dSAndy Adamson out_overflow: 439788034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 439888034c3dSAndy Adamson return -EIO; 439988034c3dSAndy Adamson } 440088034c3dSAndy Adamson 4401ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4402ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 44038b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 44046926afd1STrond Myklebust const struct nfs_server *server) 44051da177e4SLinus Torvalds { 4406bca79478STrond Myklebust int status; 4407bca79478STrond Myklebust umode_t fmode = 0; 4408ae42c70aSBryan Schumaker uint32_t type; 4409ee7b75fcSTrond Myklebust int32_t err; 44101da177e4SLinus Torvalds 4411f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4412f26c7a78STrond Myklebust if (status < 0) 44131da177e4SLinus Torvalds goto xdr_error; 4414409924e4STrond Myklebust fattr->mode = 0; 4415409924e4STrond Myklebust if (status != 0) { 4416409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4417409924e4STrond Myklebust fattr->valid |= status; 4418409924e4STrond Myklebust } 44191da177e4SLinus Torvalds 4420f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4421f26c7a78STrond Myklebust if (status < 0) 44221da177e4SLinus Torvalds goto xdr_error; 4423409924e4STrond Myklebust fattr->valid |= status; 4424f26c7a78STrond Myklebust 4425f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4426f26c7a78STrond Myklebust if (status < 0) 44271da177e4SLinus Torvalds goto xdr_error; 4428409924e4STrond Myklebust fattr->valid |= status; 4429f26c7a78STrond Myklebust 4430f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4431f26c7a78STrond Myklebust if (status < 0) 44321da177e4SLinus Torvalds goto xdr_error; 4433409924e4STrond Myklebust fattr->valid |= status; 4434f26c7a78STrond Myklebust 4435ee7b75fcSTrond Myklebust err = 0; 4436ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4437ae42c70aSBryan Schumaker if (status < 0) 4438ae42c70aSBryan Schumaker goto xdr_error; 4439ae42c70aSBryan Schumaker 4440ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4441ae42c70aSBryan Schumaker if (status < 0) 4442ae42c70aSBryan Schumaker goto xdr_error; 4443ae42c70aSBryan Schumaker 4444f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4445f26c7a78STrond Myklebust if (status < 0) 44461da177e4SLinus Torvalds goto xdr_error; 4447409924e4STrond Myklebust fattr->valid |= status; 4448f26c7a78STrond Myklebust 44498b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4450f26c7a78STrond Myklebust if (status < 0) 4451683b57b4STrond Myklebust goto xdr_error; 4452409924e4STrond Myklebust fattr->valid |= status; 4453f26c7a78STrond Myklebust 4454f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4455f26c7a78STrond Myklebust if (status < 0) 44561da177e4SLinus Torvalds goto xdr_error; 4457409924e4STrond Myklebust if (status != 0) { 44581da177e4SLinus Torvalds fattr->mode |= fmode; 4459409924e4STrond Myklebust fattr->valid |= status; 4460409924e4STrond Myklebust } 4461f26c7a78STrond Myklebust 4462f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4463f26c7a78STrond Myklebust if (status < 0) 44641da177e4SLinus Torvalds goto xdr_error; 4465409924e4STrond Myklebust fattr->valid |= status; 4466f26c7a78STrond Myklebust 44676926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4468f26c7a78STrond Myklebust if (status < 0) 44691da177e4SLinus Torvalds goto xdr_error; 4470409924e4STrond Myklebust fattr->valid |= status; 4471f26c7a78STrond Myklebust 44726926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4473f26c7a78STrond Myklebust if (status < 0) 44741da177e4SLinus Torvalds goto xdr_error; 4475409924e4STrond Myklebust fattr->valid |= status; 4476f26c7a78STrond Myklebust 4477f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4478f26c7a78STrond Myklebust if (status < 0) 44791da177e4SLinus Torvalds goto xdr_error; 4480409924e4STrond Myklebust fattr->valid |= status; 4481f26c7a78STrond Myklebust 4482f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4483f26c7a78STrond Myklebust if (status < 0) 44841da177e4SLinus Torvalds goto xdr_error; 4485409924e4STrond Myklebust fattr->valid |= status; 4486f26c7a78STrond Myklebust 4487f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4488f26c7a78STrond Myklebust if (status < 0) 44891da177e4SLinus Torvalds goto xdr_error; 4490409924e4STrond Myklebust fattr->valid |= status; 4491f26c7a78STrond Myklebust 4492f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4493f26c7a78STrond Myklebust if (status < 0) 44941da177e4SLinus Torvalds goto xdr_error; 4495409924e4STrond Myklebust fattr->valid |= status; 4496f26c7a78STrond Myklebust 4497f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4498f26c7a78STrond Myklebust if (status < 0) 44991da177e4SLinus Torvalds goto xdr_error; 4500409924e4STrond Myklebust fattr->valid |= status; 4501f26c7a78STrond Myklebust 450228331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4503f26c7a78STrond Myklebust if (status < 0) 450499baf625SManoj Naik goto xdr_error; 4505409924e4STrond Myklebust fattr->valid |= status; 4506f26c7a78STrond Myklebust 450788034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 450888034c3dSAndy Adamson if (status < 0) 450988034c3dSAndy Adamson goto xdr_error; 451088034c3dSAndy Adamson 4511ae42c70aSBryan Schumaker xdr_error: 4512ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4513ae42c70aSBryan Schumaker return status; 4514ae42c70aSBryan Schumaker } 4515ae42c70aSBryan Schumaker 4516ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45178b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 45188b7e3f49STrond Myklebust const struct nfs_server *server) 4519ae42c70aSBryan Schumaker { 4520256e48bbSTrond Myklebust unsigned int savep; 4521ae42c70aSBryan Schumaker uint32_t attrlen, 4522dae100c2SFred Isaman bitmap[3] = {0}; 4523ae42c70aSBryan Schumaker int status; 4524ae42c70aSBryan Schumaker 4525ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4526ae42c70aSBryan Schumaker if (status < 0) 4527ae42c70aSBryan Schumaker goto xdr_error; 4528ae42c70aSBryan Schumaker 4529ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4530ae42c70aSBryan Schumaker if (status < 0) 4531ae42c70aSBryan Schumaker goto xdr_error; 4532ae42c70aSBryan Schumaker 4533ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4534ae42c70aSBryan Schumaker if (status < 0) 4535ae42c70aSBryan Schumaker goto xdr_error; 4536ae42c70aSBryan Schumaker 45378b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4538ae42c70aSBryan Schumaker if (status < 0) 4539ae42c70aSBryan Schumaker goto xdr_error; 4540ae42c70aSBryan Schumaker 4541f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 45421da177e4SLinus Torvalds xdr_error: 45433110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 45441da177e4SLinus Torvalds return status; 45451da177e4SLinus Torvalds } 45461da177e4SLinus Torvalds 4547ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45486926afd1STrond Myklebust const struct nfs_server *server) 4549ae42c70aSBryan Schumaker { 45508b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4551ae42c70aSBryan Schumaker } 45521da177e4SLinus Torvalds 4553504913fbSAndy Adamson /* 4554504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4555504913fbSAndy Adamson * one layout driver per file system. 4556504913fbSAndy Adamson */ 4557504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4558504913fbSAndy Adamson uint32_t *layouttype) 4559504913fbSAndy Adamson { 4560504913fbSAndy Adamson uint32_t *p; 4561504913fbSAndy Adamson int num; 4562504913fbSAndy Adamson 4563504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4564504913fbSAndy Adamson if (unlikely(!p)) 4565504913fbSAndy Adamson goto out_overflow; 4566504913fbSAndy Adamson num = be32_to_cpup(p); 4567504913fbSAndy Adamson 4568504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4569504913fbSAndy Adamson if (num == 0) { 4570504913fbSAndy Adamson *layouttype = 0; 4571504913fbSAndy Adamson return 0; 4572504913fbSAndy Adamson } 4573504913fbSAndy Adamson if (num > 1) 4574a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4575a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4576504913fbSAndy Adamson 4577504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4578504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4579504913fbSAndy Adamson if (unlikely(!p)) 4580504913fbSAndy Adamson goto out_overflow; 4581504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4582504913fbSAndy Adamson return 0; 4583504913fbSAndy Adamson out_overflow: 4584504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4585504913fbSAndy Adamson return -EIO; 4586504913fbSAndy Adamson } 4587504913fbSAndy Adamson 4588504913fbSAndy Adamson /* 4589504913fbSAndy Adamson * The type of file system exported. 4590504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4591504913fbSAndy Adamson */ 4592504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4593504913fbSAndy Adamson uint32_t *layouttype) 4594504913fbSAndy Adamson { 4595504913fbSAndy Adamson int status = 0; 4596504913fbSAndy Adamson 4597504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4598504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4599504913fbSAndy Adamson return -EIO; 4600504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4601504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4602504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4603504913fbSAndy Adamson } else 4604504913fbSAndy Adamson *layouttype = 0; 4605504913fbSAndy Adamson return status; 4606504913fbSAndy Adamson } 4607504913fbSAndy Adamson 4608dae100c2SFred Isaman /* 4609dae100c2SFred Isaman * The prefered block size for layout directed io 4610dae100c2SFred Isaman */ 4611dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4612dae100c2SFred Isaman uint32_t *res) 4613dae100c2SFred Isaman { 4614dae100c2SFred Isaman __be32 *p; 4615dae100c2SFred Isaman 4616dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4617dae100c2SFred Isaman *res = 0; 4618dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4619dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4620dae100c2SFred Isaman if (unlikely(!p)) { 4621dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4622dae100c2SFred Isaman return -EIO; 4623dae100c2SFred Isaman } 4624dae100c2SFred Isaman *res = be32_to_cpup(p); 4625dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4626dae100c2SFred Isaman } 4627dae100c2SFred Isaman return 0; 4628dae100c2SFred Isaman } 4629dae100c2SFred Isaman 46301da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 46311da177e4SLinus Torvalds { 4632256e48bbSTrond Myklebust unsigned int savep; 4633dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 46341da177e4SLinus Torvalds int status; 46351da177e4SLinus Torvalds 46361da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 46371da177e4SLinus Torvalds goto xdr_error; 46381da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 46391da177e4SLinus Torvalds goto xdr_error; 46401da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 46411da177e4SLinus Torvalds goto xdr_error; 46421da177e4SLinus Torvalds 46431da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 46441da177e4SLinus Torvalds 46451da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 46461da177e4SLinus Torvalds goto xdr_error; 46471da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 46481da177e4SLinus Torvalds goto xdr_error; 46491da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 46501da177e4SLinus Torvalds goto xdr_error; 46511da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 46521da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 46531da177e4SLinus Torvalds goto xdr_error; 46541da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 465555b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 465655b6e774SRicardo Labiaga if (status != 0) 465755b6e774SRicardo Labiaga goto xdr_error; 4658504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4659504913fbSAndy Adamson if (status != 0) 4660504913fbSAndy Adamson goto xdr_error; 4661dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4662dae100c2SFred Isaman if (status) 4663dae100c2SFred Isaman goto xdr_error; 46641da177e4SLinus Torvalds 46651da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46661da177e4SLinus Torvalds xdr_error: 46673110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46681da177e4SLinus Torvalds return status; 46691da177e4SLinus Torvalds } 46701da177e4SLinus Torvalds 46711da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46721da177e4SLinus Torvalds { 46738687b63aSAl Viro __be32 *p; 46741da177e4SLinus Torvalds uint32_t len; 46751da177e4SLinus Torvalds int status; 46761da177e4SLinus Torvalds 46779936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46789936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46799936781dSTrond Myklebust 46801da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46811da177e4SLinus Torvalds if (status) 46821da177e4SLinus Torvalds return status; 46831da177e4SLinus Torvalds 4684c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4685c0eae66eSBenny Halevy if (unlikely(!p)) 4686c0eae66eSBenny Halevy goto out_overflow; 4687cccddf4fSBenny Halevy len = be32_to_cpup(p); 46881da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46891da177e4SLinus Torvalds return -EIO; 46901da177e4SLinus Torvalds fh->size = len; 4691c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4692c0eae66eSBenny Halevy if (unlikely(!p)) 4693c0eae66eSBenny Halevy goto out_overflow; 469499398d06SBenny Halevy memcpy(fh->data, p, len); 46951da177e4SLinus Torvalds return 0; 4696c0eae66eSBenny Halevy out_overflow: 4697c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4698c0eae66eSBenny Halevy return -EIO; 46991da177e4SLinus Torvalds } 47001da177e4SLinus Torvalds 47011da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 47021da177e4SLinus Torvalds { 47031da177e4SLinus Torvalds int status; 47041da177e4SLinus Torvalds 47051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 47061da177e4SLinus Torvalds if (status) 47071da177e4SLinus Torvalds return status; 47081da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 47091da177e4SLinus Torvalds } 47101da177e4SLinus Torvalds 47111da177e4SLinus Torvalds /* 47121da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 47131da177e4SLinus Torvalds */ 4714911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 47151da177e4SLinus Torvalds { 4716911d1aafSTrond Myklebust uint64_t offset, length, clientid; 47178687b63aSAl Viro __be32 *p; 4718911d1aafSTrond Myklebust uint32_t namelen, type; 47191da177e4SLinus Torvalds 4720babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4721c0eae66eSBenny Halevy if (unlikely(!p)) 4722c0eae66eSBenny Halevy goto out_overflow; 4723babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 47243ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4725babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4726babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4727911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4728911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4729911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4730911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4731911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4732911d1aafSTrond Myklebust if (type & 1) 4733911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4734911d1aafSTrond Myklebust fl->fl_pid = 0; 4735911d1aafSTrond Myklebust } 4736babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4737babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4738babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4739c0eae66eSBenny Halevy if (likely(p)) 47401da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4741c0eae66eSBenny Halevy out_overflow: 4742c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4743c0eae66eSBenny Halevy return -EIO; 47441da177e4SLinus Torvalds } 47451da177e4SLinus Torvalds 4746911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 47471da177e4SLinus Torvalds { 47481da177e4SLinus Torvalds int status; 47491da177e4SLinus Torvalds 47501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4751c1d51931STrond Myklebust if (status == -EIO) 4752c1d51931STrond Myklebust goto out; 47531da177e4SLinus Torvalds if (status == 0) { 475407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 475507d30434SBenny Halevy if (unlikely(status)) 475607d30434SBenny Halevy goto out; 47571da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4758c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4759c1d51931STrond Myklebust if (res->open_seqid != NULL) 4760c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4761c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4762c1d51931STrond Myklebust out: 47631da177e4SLinus Torvalds return status; 47641da177e4SLinus Torvalds } 47651da177e4SLinus Torvalds 4766911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47671da177e4SLinus Torvalds { 47681da177e4SLinus Torvalds int status; 47691da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47701da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4771911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47721da177e4SLinus Torvalds return status; 47731da177e4SLinus Torvalds } 47741da177e4SLinus Torvalds 4775911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47761da177e4SLinus Torvalds { 47771da177e4SLinus Torvalds int status; 47781da177e4SLinus Torvalds 47791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4780c1d51931STrond Myklebust if (status != -EIO) 4781c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 478207d30434SBenny Halevy if (status == 0) 478307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47841da177e4SLinus Torvalds return status; 47851da177e4SLinus Torvalds } 47861da177e4SLinus Torvalds 4787d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4788d3c7b7ccSTrond Myklebust { 4789d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4790d3c7b7ccSTrond Myklebust } 4791d3c7b7ccSTrond Myklebust 47921da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47931da177e4SLinus Torvalds { 47941da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47951da177e4SLinus Torvalds } 47961da177e4SLinus Torvalds 47971da177e4SLinus Torvalds /* This is too sick! */ 47981da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47991da177e4SLinus Torvalds { 48008687b63aSAl Viro __be32 *p; 48011da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 48021da177e4SLinus Torvalds 4803c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4804c0eae66eSBenny Halevy if (unlikely(!p)) 4805c0eae66eSBenny Halevy goto out_overflow; 48066f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 48071da177e4SLinus Torvalds switch (limit_type) { 48081da177e4SLinus Torvalds case 1: 4809cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 48101da177e4SLinus Torvalds break; 48111da177e4SLinus Torvalds case 2: 48126f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4813cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 48141da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 48151da177e4SLinus Torvalds } 48161da177e4SLinus Torvalds return 0; 4817c0eae66eSBenny Halevy out_overflow: 4818c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4819c0eae66eSBenny Halevy return -EIO; 48201da177e4SLinus Torvalds } 48211da177e4SLinus Torvalds 48221da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 48231da177e4SLinus Torvalds { 48248687b63aSAl Viro __be32 *p; 48251da177e4SLinus Torvalds uint32_t delegation_type; 482607d30434SBenny Halevy int status; 48271da177e4SLinus Torvalds 4828c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4829c0eae66eSBenny Halevy if (unlikely(!p)) 4830c0eae66eSBenny Halevy goto out_overflow; 4831cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 48321da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 48331da177e4SLinus Torvalds res->delegation_type = 0; 48341da177e4SLinus Torvalds return 0; 48351da177e4SLinus Torvalds } 483607d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 483707d30434SBenny Halevy if (unlikely(status)) 483807d30434SBenny Halevy return status; 4839c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4840c0eae66eSBenny Halevy if (unlikely(!p)) 4841c0eae66eSBenny Halevy goto out_overflow; 4842cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 484305d564feSAndy Adamson 48441da177e4SLinus Torvalds switch (delegation_type) { 48451da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 48461da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 48471da177e4SLinus Torvalds break; 48481da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 48491da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 48501da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 48511da177e4SLinus Torvalds return -EIO; 48521da177e4SLinus Torvalds } 48537539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4854c0eae66eSBenny Halevy out_overflow: 4855c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4856c0eae66eSBenny Halevy return -EIO; 48571da177e4SLinus Torvalds } 48581da177e4SLinus Torvalds 48591da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 48601da177e4SLinus Torvalds { 48618687b63aSAl Viro __be32 *p; 4862aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 48631da177e4SLinus Torvalds int status; 48641da177e4SLinus Torvalds 48651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4866c1d51931STrond Myklebust if (status != -EIO) 4867c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 486807d30434SBenny Halevy if (!status) 486907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 487007d30434SBenny Halevy if (unlikely(status)) 48711da177e4SLinus Torvalds return status; 48721da177e4SLinus Torvalds 48731da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48741da177e4SLinus Torvalds 4875c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4876c0eae66eSBenny Halevy if (unlikely(!p)) 4877c0eae66eSBenny Halevy goto out_overflow; 48786f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4879cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48801da177e4SLinus Torvalds if (bmlen > 10) 48811da177e4SLinus Torvalds goto xdr_error; 48821da177e4SLinus Torvalds 4883c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4884c0eae66eSBenny Halevy if (unlikely(!p)) 4885c0eae66eSBenny Halevy goto out_overflow; 4886aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4887aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48886f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4889aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4890aa53ed54SJeff Layton res->attrset[i] = 0; 4891aa53ed54SJeff Layton 48921da177e4SLinus Torvalds return decode_delegation(xdr, res); 48931da177e4SLinus Torvalds xdr_error: 48943110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48951da177e4SLinus Torvalds return -EIO; 4896c0eae66eSBenny Halevy out_overflow: 4897c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4898c0eae66eSBenny Halevy return -EIO; 48991da177e4SLinus Torvalds } 49001da177e4SLinus Torvalds 49011da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 49021da177e4SLinus Torvalds { 49031da177e4SLinus Torvalds int status; 49041da177e4SLinus Torvalds 49051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4906c1d51931STrond Myklebust if (status != -EIO) 4907c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 490807d30434SBenny Halevy if (!status) 490907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49101da177e4SLinus Torvalds return status; 49111da177e4SLinus Torvalds } 49121da177e4SLinus Torvalds 49131da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 49141da177e4SLinus Torvalds { 49151da177e4SLinus Torvalds int status; 49161da177e4SLinus Torvalds 49171da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4918c1d51931STrond Myklebust if (status != -EIO) 4919c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 492007d30434SBenny Halevy if (!status) 492107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49221da177e4SLinus Torvalds return status; 49231da177e4SLinus Torvalds } 49241da177e4SLinus Torvalds 49251da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 49261da177e4SLinus Torvalds { 49271da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 49281da177e4SLinus Torvalds } 49291da177e4SLinus Torvalds 49301da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 49311da177e4SLinus Torvalds { 49321da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 49331da177e4SLinus Torvalds } 49341da177e4SLinus Torvalds 49351da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 49361da177e4SLinus Torvalds { 49378687b63aSAl Viro __be32 *p; 493864bd577eSTrond Myklebust uint32_t count, eof, recvd; 49391da177e4SLinus Torvalds int status; 49401da177e4SLinus Torvalds 49411da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 49421da177e4SLinus Torvalds if (status) 49431da177e4SLinus Torvalds return status; 4944c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4945c0eae66eSBenny Halevy if (unlikely(!p)) 4946c0eae66eSBenny Halevy goto out_overflow; 49476f723f77SBenny Halevy eof = be32_to_cpup(p++); 4948cccddf4fSBenny Halevy count = be32_to_cpup(p); 494964bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 49501da177e4SLinus Torvalds if (count > recvd) { 4951fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 49521da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 49531da177e4SLinus Torvalds count = recvd; 49541da177e4SLinus Torvalds eof = 0; 49551da177e4SLinus Torvalds } 49561da177e4SLinus Torvalds res->eof = eof; 49571da177e4SLinus Torvalds res->count = count; 49581da177e4SLinus Torvalds return 0; 4959c0eae66eSBenny Halevy out_overflow: 4960c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4961c0eae66eSBenny Halevy return -EIO; 49621da177e4SLinus Torvalds } 49631da177e4SLinus Torvalds 49641da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 49651da177e4SLinus Torvalds { 4966bcecff77SChuck Lever int status; 4967cd93710eSChuck Lever __be32 verf[2]; 49681da177e4SLinus Torvalds 49691da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4970db942bbdSBenny Halevy if (!status) 4971db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4972db942bbdSBenny Halevy if (unlikely(status)) 49731da177e4SLinus Torvalds return status; 4974cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 497544109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 4976cd93710eSChuck Lever __func__, verf[0], verf[1]); 497764bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 49781da177e4SLinus Torvalds } 49791da177e4SLinus Torvalds 49801da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49811da177e4SLinus Torvalds { 49821da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 4983bcecff77SChuck Lever u32 len, recvd; 49848687b63aSAl Viro __be32 *p; 49851da177e4SLinus Torvalds int status; 49861da177e4SLinus Torvalds 49871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49881da177e4SLinus Torvalds if (status) 49891da177e4SLinus Torvalds return status; 49901da177e4SLinus Torvalds 49911da177e4SLinus Torvalds /* Convert length of symlink */ 4992c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4993c0eae66eSBenny Halevy if (unlikely(!p)) 4994c0eae66eSBenny Halevy goto out_overflow; 4995cccddf4fSBenny Halevy len = be32_to_cpup(p); 49961da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4997fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49981da177e4SLinus Torvalds return -ENAMETOOLONG; 49991da177e4SLinus Torvalds } 500064bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 50011da177e4SLinus Torvalds if (recvd < len) { 5002fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 50031da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 50041da177e4SLinus Torvalds return -EIO; 50051da177e4SLinus Torvalds } 50061da177e4SLinus Torvalds /* 50071da177e4SLinus Torvalds * The XDR encode routine has set things up so that 50081da177e4SLinus Torvalds * the link text will be copied directly into the 50091da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 50101da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 50111da177e4SLinus Torvalds * null-termination). 50121da177e4SLinus Torvalds */ 5013b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 50141da177e4SLinus Torvalds return 0; 5015c0eae66eSBenny Halevy out_overflow: 5016c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5017c0eae66eSBenny Halevy return -EIO; 50181da177e4SLinus Torvalds } 50191da177e4SLinus Torvalds 50201da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 50211da177e4SLinus Torvalds { 50221da177e4SLinus Torvalds int status; 50231da177e4SLinus Torvalds 50241da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 50251da177e4SLinus Torvalds if (status) 50261da177e4SLinus Torvalds goto out; 50271da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 50281da177e4SLinus Torvalds out: 50291da177e4SLinus Torvalds return status; 50301da177e4SLinus Torvalds } 50311da177e4SLinus Torvalds 50321da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 50331da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 50341da177e4SLinus Torvalds { 50351da177e4SLinus Torvalds int status; 50361da177e4SLinus Torvalds 50371da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 50381da177e4SLinus Torvalds if (status) 50391da177e4SLinus Torvalds goto out; 50401da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 50411da177e4SLinus Torvalds goto out; 50421da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 50431da177e4SLinus Torvalds out: 50441da177e4SLinus Torvalds return status; 50451da177e4SLinus Torvalds } 50461da177e4SLinus Torvalds 50471da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50481da177e4SLinus Torvalds { 50491da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50501da177e4SLinus Torvalds } 50511da177e4SLinus Torvalds 505256ae19f3STrond Myklebust static int 505356ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 505456ae19f3STrond Myklebust { 505556ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 505656ae19f3STrond Myklebust } 505756ae19f3STrond Myklebust 5058029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5059bf118a34SAndy Adamson struct nfs_getaclres *res) 5060029d105eSJ. Bruce Fields { 5061256e48bbSTrond Myklebust unsigned int savep; 5062029d105eSJ. Bruce Fields uint32_t attrlen, 5063dae100c2SFred Isaman bitmap[3] = {0}; 5064029d105eSJ. Bruce Fields int status; 5065cff298c7STrond Myklebust unsigned int pg_offset; 5066029d105eSJ. Bruce Fields 5067bf118a34SAndy Adamson res->acl_len = 0; 5068029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5069029d105eSJ. Bruce Fields goto out; 50705a006899SSachin Prabhu 5071519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5072519d3959STrond Myklebust 5073cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5074cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 50755a006899SSachin Prabhu 5076029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5077029d105eSJ. Bruce Fields goto out; 5078029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5079029d105eSJ. Bruce Fields goto out; 5080029d105eSJ. Bruce Fields 5081029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5082029d105eSJ. Bruce Fields return -EIO; 5083029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5084029d105eSJ. Bruce Fields 5085bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5086bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5087bf118a34SAndy Adamson * variable length bitmaps.*/ 5088cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5089519d3959STrond Myklebust res->acl_len = attrlen; 50901f1ea6c2STrond Myklebust 50911f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 50921f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 50931f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 50941f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5095519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5096cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5097029d105eSJ. Bruce Fields } 50988c233cf9SJ. Bruce Fields } else 50998c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5100029d105eSJ. Bruce Fields 5101029d105eSJ. Bruce Fields out: 5102029d105eSJ. Bruce Fields return status; 5103029d105eSJ. Bruce Fields } 5104029d105eSJ. Bruce Fields 51051da177e4SLinus Torvalds static int 51061da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 51071da177e4SLinus Torvalds { 51081da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 51091da177e4SLinus Torvalds } 51101da177e4SLinus Torvalds 51119e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 51121da177e4SLinus Torvalds { 51138687b63aSAl Viro __be32 *p; 51141da177e4SLinus Torvalds uint32_t bmlen; 51151da177e4SLinus Torvalds int status; 51161da177e4SLinus Torvalds 51171da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 51181da177e4SLinus Torvalds if (status) 51191da177e4SLinus Torvalds return status; 5120c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5121c0eae66eSBenny Halevy if (unlikely(!p)) 5122c0eae66eSBenny Halevy goto out_overflow; 5123cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5124c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5125c0eae66eSBenny Halevy if (likely(p)) 51261da177e4SLinus Torvalds return 0; 5127c0eae66eSBenny Halevy out_overflow: 5128c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5129c0eae66eSBenny Halevy return -EIO; 51301da177e4SLinus Torvalds } 51311da177e4SLinus Torvalds 5132bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 51331da177e4SLinus Torvalds { 51348687b63aSAl Viro __be32 *p; 51351da177e4SLinus Torvalds uint32_t opnum; 51361da177e4SLinus Torvalds int32_t nfserr; 51371da177e4SLinus Torvalds 5138c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5139c0eae66eSBenny Halevy if (unlikely(!p)) 5140c0eae66eSBenny Halevy goto out_overflow; 51416f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51421da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5143fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51441da177e4SLinus Torvalds " %d\n", opnum); 51451da177e4SLinus Torvalds return -EIO; 51461da177e4SLinus Torvalds } 5147cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51481da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5149c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5150c0eae66eSBenny Halevy if (unlikely(!p)) 5151c0eae66eSBenny Halevy goto out_overflow; 5152bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5153bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51541da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51551da177e4SLinus Torvalds uint32_t len; 51561da177e4SLinus Torvalds 51571da177e4SLinus Torvalds /* skip netid string */ 5158c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5159c0eae66eSBenny Halevy if (unlikely(!p)) 5160c0eae66eSBenny Halevy goto out_overflow; 5161cccddf4fSBenny Halevy len = be32_to_cpup(p); 5162c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5163c0eae66eSBenny Halevy if (unlikely(!p)) 5164c0eae66eSBenny Halevy goto out_overflow; 51651da177e4SLinus Torvalds 51661da177e4SLinus Torvalds /* skip uaddr string */ 5167c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5168c0eae66eSBenny Halevy if (unlikely(!p)) 5169c0eae66eSBenny Halevy goto out_overflow; 5170cccddf4fSBenny Halevy len = be32_to_cpup(p); 5171c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5172c0eae66eSBenny Halevy if (unlikely(!p)) 5173c0eae66eSBenny Halevy goto out_overflow; 51741da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51751da177e4SLinus Torvalds } else 5176856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51771da177e4SLinus Torvalds 51781da177e4SLinus Torvalds return 0; 5179c0eae66eSBenny Halevy out_overflow: 5180c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5181c0eae66eSBenny Halevy return -EIO; 51821da177e4SLinus Torvalds } 51831da177e4SLinus Torvalds 51841da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51851da177e4SLinus Torvalds { 51861da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51871da177e4SLinus Torvalds } 51881da177e4SLinus Torvalds 51891da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51901da177e4SLinus Torvalds { 51918687b63aSAl Viro __be32 *p; 51921da177e4SLinus Torvalds int status; 51931da177e4SLinus Torvalds 51941da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51951da177e4SLinus Torvalds if (status) 51961da177e4SLinus Torvalds return status; 51971da177e4SLinus Torvalds 51982f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5199c0eae66eSBenny Halevy if (unlikely(!p)) 5200c0eae66eSBenny Halevy goto out_overflow; 52016f723f77SBenny Halevy res->count = be32_to_cpup(p++); 52026f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 52032f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5204c0eae66eSBenny Halevy out_overflow: 5205c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5206c0eae66eSBenny Halevy return -EIO; 52071da177e4SLinus Torvalds } 52081da177e4SLinus Torvalds 52091da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 52101da177e4SLinus Torvalds { 52111da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 52121da177e4SLinus Torvalds } 52131da177e4SLinus Torvalds 52145a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 52155a5ea0d4SBryan Schumaker { 52165a5ea0d4SBryan Schumaker __be32 *p; 52175a5ea0d4SBryan Schumaker 52185a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52195a5ea0d4SBryan Schumaker if (unlikely(!p)) 52205a5ea0d4SBryan Schumaker goto out_overflow; 52215a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 52225a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 52235a5ea0d4SBryan Schumaker goto out_err; 52245a5ea0d4SBryan Schumaker 52255a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 52265a5ea0d4SBryan Schumaker if (unlikely(!p)) 52275a5ea0d4SBryan Schumaker goto out_overflow; 52285a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 52295a5ea0d4SBryan Schumaker 52305a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 52315a5ea0d4SBryan Schumaker if (unlikely(!p)) 52325a5ea0d4SBryan Schumaker goto out_overflow; 52335a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 52345a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 52355a5ea0d4SBryan Schumaker 52365a5ea0d4SBryan Schumaker return 0; 52375a5ea0d4SBryan Schumaker 52385a5ea0d4SBryan Schumaker out_overflow: 52395a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52405a5ea0d4SBryan Schumaker return -EIO; 52415a5ea0d4SBryan Schumaker out_err: 52425a5ea0d4SBryan Schumaker return -EINVAL; 52435a5ea0d4SBryan Schumaker } 52445a5ea0d4SBryan Schumaker 524531e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52465a5ea0d4SBryan Schumaker { 52475a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 52485a5ea0d4SBryan Schumaker int status; 52495a5ea0d4SBryan Schumaker __be32 *p; 5250c3dfc280SBryan Schumaker int i, num_flavors; 52515a5ea0d4SBryan Schumaker 52525a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52535a5ea0d4SBryan Schumaker if (unlikely(!p)) 52545a5ea0d4SBryan Schumaker goto out_overflow; 52555a5ea0d4SBryan Schumaker 5256c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5257c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5258c3dfc280SBryan Schumaker 5259c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52605a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5261c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52625a5ea0d4SBryan Schumaker break; 52635a5ea0d4SBryan Schumaker 52645a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52655a5ea0d4SBryan Schumaker if (unlikely(!p)) 52665a5ea0d4SBryan Schumaker goto out_overflow; 52675a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52685a5ea0d4SBryan Schumaker 52695a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5270613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5271613e901eSBryan Schumaker if (status) 5272613e901eSBryan Schumaker goto out; 52735a5ea0d4SBryan Schumaker } 5274c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52755a5ea0d4SBryan Schumaker } 52765a5ea0d4SBryan Schumaker 527731e4dda4SBryan Schumaker status = 0; 5278613e901eSBryan Schumaker out: 5279613e901eSBryan Schumaker return status; 52805a5ea0d4SBryan Schumaker out_overflow: 52815a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52825a5ea0d4SBryan Schumaker return -EIO; 52835a5ea0d4SBryan Schumaker } 52845a5ea0d4SBryan Schumaker 528531e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 528631e4dda4SBryan Schumaker { 528731e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 528831e4dda4SBryan Schumaker if (status) 528931e4dda4SBryan Schumaker return status; 529031e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 529131e4dda4SBryan Schumaker } 529231e4dda4SBryan Schumaker 529399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 529431e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 529531e4dda4SBryan Schumaker { 529631e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 529731e4dda4SBryan Schumaker if (status) 529831e4dda4SBryan Schumaker return status; 529931e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 530031e4dda4SBryan Schumaker } 530131e4dda4SBryan Schumaker 530299fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 530399fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 530499fe60d0SBenny Halevy { 530599fe60d0SBenny Halevy __be32 *p; 530699fe60d0SBenny Halevy uint32_t dummy; 53072460ba57SBenny Halevy char *dummy_str; 530899fe60d0SBenny Halevy int status; 53097d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 531099fe60d0SBenny Halevy 531199fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 531299fe60d0SBenny Halevy if (status) 531399fe60d0SBenny Halevy return status; 531499fe60d0SBenny Halevy 5315c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5316c0eae66eSBenny Halevy if (unlikely(!p)) 5317c0eae66eSBenny Halevy goto out_overflow; 531832b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5319c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5320c0eae66eSBenny Halevy if (unlikely(!p)) 5321c0eae66eSBenny Halevy goto out_overflow; 532232b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 532332b01310STrond Myklebust res->flags = be32_to_cpup(p++); 532499fe60d0SBenny Halevy 532599fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5326cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 532799fe60d0SBenny Halevy if (dummy != SP4_NONE) 532899fe60d0SBenny Halevy return -EIO; 532999fe60d0SBenny Halevy 5330acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5331c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5332c0eae66eSBenny Halevy if (unlikely(!p)) 5333c0eae66eSBenny Halevy goto out_overflow; 5334acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 533599fe60d0SBenny Halevy 5336acdeb69dSChuck Lever /* server_owner4.so_major_id */ 53372460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53382460ba57SBenny Halevy if (unlikely(status)) 53392460ba57SBenny Halevy return status; 534078fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 534178fe0f41SWeston Andros Adamson return -EIO; 5342acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5343acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 534478fe0f41SWeston Andros Adamson 5345acdeb69dSChuck Lever /* server_scope4 */ 5346acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5347acdeb69dSChuck Lever if (unlikely(status)) 5348acdeb69dSChuck Lever return status; 5349acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5350acdeb69dSChuck Lever return -EIO; 535178fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 535278fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 535378fe0f41SWeston Andros Adamson 53547d2ed9acSWeston Andros Adamson /* Implementation Id */ 53557d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 53567d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53577d2ed9acSWeston Andros Adamson goto out_overflow; 53587d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 53597d2ed9acSWeston Andros Adamson 53607d2ed9acSWeston Andros Adamson if (impl_id_count) { 53617d2ed9acSWeston Andros Adamson /* nii_domain */ 53622460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53632460ba57SBenny Halevy if (unlikely(status)) 53642460ba57SBenny Halevy return status; 53657d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53667d2ed9acSWeston Andros Adamson return -EIO; 53677d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 536899fe60d0SBenny Halevy 53697d2ed9acSWeston Andros Adamson /* nii_name */ 53707d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53717d2ed9acSWeston Andros Adamson if (unlikely(status)) 53727d2ed9acSWeston Andros Adamson return status; 53737d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53747d2ed9acSWeston Andros Adamson return -EIO; 53757d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 53767d2ed9acSWeston Andros Adamson 53777d2ed9acSWeston Andros Adamson /* nii_date */ 53787d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 53797d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53807d2ed9acSWeston Andros Adamson goto out_overflow; 53817d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 53827d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 53837d2ed9acSWeston Andros Adamson 53847d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 53857d2ed9acSWeston Andros Adamson } 538699fe60d0SBenny Halevy return 0; 5387c0eae66eSBenny Halevy out_overflow: 5388c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5389c0eae66eSBenny Halevy return -EIO; 539099fe60d0SBenny Halevy } 5391fc931582SAndy Adamson 5392fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5393fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5394fc931582SAndy Adamson { 5395fc931582SAndy Adamson __be32 *p; 5396c9c30dd5SBenny Halevy u32 nr_attrs, val; 5397fc931582SAndy Adamson 5398c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5399c0eae66eSBenny Halevy if (unlikely(!p)) 5400c0eae66eSBenny Halevy goto out_overflow; 5401c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5402c9c30dd5SBenny Halevy if (val) 5403c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 54046f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 54056f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 54066f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 54076f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 54086f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5409cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5410fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5411a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5412a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5413fc931582SAndy Adamson return -EINVAL; 5414fc931582SAndy Adamson } 5415c0eae66eSBenny Halevy if (nr_attrs == 1) { 5416c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5417c0eae66eSBenny Halevy if (unlikely(!p)) 5418c0eae66eSBenny Halevy goto out_overflow; 5419c0eae66eSBenny Halevy } 5420fc931582SAndy Adamson return 0; 5421c0eae66eSBenny Halevy out_overflow: 5422c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5423c0eae66eSBenny Halevy return -EIO; 5424fc931582SAndy Adamson } 5425fc931582SAndy Adamson 5426e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5427e78291e4SBenny Halevy { 5428e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5429fc931582SAndy Adamson } 5430fc931582SAndy Adamson 54317c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 54327c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 54337c44f1aeSWeston Andros Adamson { 54347c44f1aeSWeston Andros Adamson __be32 *p; 54357c44f1aeSWeston Andros Adamson int status; 54367c44f1aeSWeston Andros Adamson 54377c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 54387c44f1aeSWeston Andros Adamson if (!status) 54397c44f1aeSWeston Andros Adamson status = decode_sessionid(xdr, &res->session->sess_id); 54407c44f1aeSWeston Andros Adamson if (unlikely(status)) 54417c44f1aeSWeston Andros Adamson return status; 54427c44f1aeSWeston Andros Adamson 54437c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 54447c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 54457c44f1aeSWeston Andros Adamson if (unlikely(!p)) 54467c44f1aeSWeston Andros Adamson goto out_overflow; 54477c44f1aeSWeston Andros Adamson 54487c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 54497c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 54507c44f1aeSWeston Andros Adamson return -EIO; 54517c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 54527c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 54537c44f1aeSWeston Andros Adamson else 54547c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 54557c44f1aeSWeston Andros Adamson 54567c44f1aeSWeston Andros Adamson return 0; 54577c44f1aeSWeston Andros Adamson out_overflow: 54587c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 54597c44f1aeSWeston Andros Adamson return -EIO; 54607c44f1aeSWeston Andros Adamson } 54617c44f1aeSWeston Andros Adamson 5462fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5463fc931582SAndy Adamson struct nfs41_create_session_res *res) 5464fc931582SAndy Adamson { 5465fc931582SAndy Adamson __be32 *p; 5466fc931582SAndy Adamson int status; 5467fc931582SAndy Adamson struct nfs_client *clp = res->client; 5468fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5469fc931582SAndy Adamson 5470fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5471e78291e4SBenny Halevy if (!status) 5472e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5473e78291e4SBenny Halevy if (unlikely(status)) 5474fc931582SAndy Adamson return status; 5475fc931582SAndy Adamson 5476fc931582SAndy Adamson /* seqid, flags */ 5477c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5478c0eae66eSBenny Halevy if (unlikely(!p)) 5479c0eae66eSBenny Halevy goto out_overflow; 54806f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5481cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5482fc931582SAndy Adamson 5483fc931582SAndy Adamson /* Channel attributes */ 5484fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5485fc931582SAndy Adamson if (!status) 5486fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5487fc931582SAndy Adamson return status; 5488c0eae66eSBenny Halevy out_overflow: 5489c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5490c0eae66eSBenny Halevy return -EIO; 5491fc931582SAndy Adamson } 54920f3e66c6SAndy Adamson 54930f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 54940f3e66c6SAndy Adamson { 54950f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 54960f3e66c6SAndy Adamson } 549718019753SRicardo Labiaga 549866245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 549966245539STrond Myklebust { 550066245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 550166245539STrond Myklebust } 550266245539STrond Myklebust 550318019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 550418019753SRicardo Labiaga { 550518019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 550618019753SRicardo Labiaga } 550799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 550899fe60d0SBenny Halevy 55099b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 55109b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 55119b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 55129b7b9fccSAndy Adamson { 55139b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5514fc01cea9SAndy Adamson struct nfs4_sessionid id; 5515fc01cea9SAndy Adamson u32 dummy; 5516fc01cea9SAndy Adamson int status; 5517fc01cea9SAndy Adamson __be32 *p; 5518fc01cea9SAndy Adamson 55199b7b9fccSAndy Adamson if (!res->sr_session) 55209b7b9fccSAndy Adamson return 0; 55219b7b9fccSAndy Adamson 5522fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5523e78291e4SBenny Halevy if (!status) 5524e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5525e78291e4SBenny Halevy if (unlikely(status)) 5526fc01cea9SAndy Adamson goto out_err; 55279b7b9fccSAndy Adamson 5528fc01cea9SAndy Adamson /* 5529fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5530fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5531fc01cea9SAndy Adamson */ 5532fdcb4577STrond Myklebust status = -EREMOTEIO; 5533fc01cea9SAndy Adamson 5534fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 5535fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5536fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5537fc01cea9SAndy Adamson goto out_err; 5538fc01cea9SAndy Adamson } 5539e78291e4SBenny Halevy 5540c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5541c0eae66eSBenny Halevy if (unlikely(!p)) 5542c0eae66eSBenny Halevy goto out_overflow; 5543e78291e4SBenny Halevy 5544fc01cea9SAndy Adamson /* seqid */ 55456f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5546dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5547fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5548fc01cea9SAndy Adamson goto out_err; 5549fc01cea9SAndy Adamson } 5550fc01cea9SAndy Adamson /* slot id */ 55516f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5552dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 5553fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5554fc01cea9SAndy Adamson goto out_err; 5555fc01cea9SAndy Adamson } 5556fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 55576f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5558fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 55596f723f77SBenny Halevy dummy = be32_to_cpup(p++); 55600629e370SAlexandros Batsakis /* result flags */ 55610629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5562fc01cea9SAndy Adamson status = 0; 5563fc01cea9SAndy Adamson out_err: 5564fc01cea9SAndy Adamson res->sr_status = status; 5565fc01cea9SAndy Adamson return status; 5566c0eae66eSBenny Halevy out_overflow: 5567c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5568c0eae66eSBenny Halevy status = -EIO; 5569c0eae66eSBenny Halevy goto out_err; 5570fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 55719b7b9fccSAndy Adamson return 0; 5572fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 55739b7b9fccSAndy Adamson } 55749b7b9fccSAndy Adamson 5575b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 55767f11d8d3SAndy Adamson /* 55777f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 55787f11d8d3SAndy Adamson */ 55797f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 55807f11d8d3SAndy Adamson struct pnfs_devicelist *res) 55817f11d8d3SAndy Adamson { 55827f11d8d3SAndy Adamson __be32 *p; 55837f11d8d3SAndy Adamson int status, i; 558498d94524STrond Myklebust nfs4_verifier verftemp; 55857f11d8d3SAndy Adamson 55867f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 55877f11d8d3SAndy Adamson if (status) 55887f11d8d3SAndy Adamson return status; 55897f11d8d3SAndy Adamson 55907f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 55917f11d8d3SAndy Adamson if (unlikely(!p)) 55927f11d8d3SAndy Adamson goto out_overflow; 55937f11d8d3SAndy Adamson 55947f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 55957f11d8d3SAndy Adamson p += 2; 55967f11d8d3SAndy Adamson 55977f11d8d3SAndy Adamson /* Read verifier */ 559898d94524STrond Myklebust p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE); 55997f11d8d3SAndy Adamson 56007f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 56017f11d8d3SAndy Adamson 56027f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 56037f11d8d3SAndy Adamson 56047f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5605a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 56067f11d8d3SAndy Adamson __func__, res->num_devs); 56077f11d8d3SAndy Adamson return -EIO; 56087f11d8d3SAndy Adamson } 56097f11d8d3SAndy Adamson 56107f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 56117f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 56127f11d8d3SAndy Adamson if (unlikely(!p)) 56137f11d8d3SAndy Adamson goto out_overflow; 56147f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 56157f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 56167f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 56177f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 56187f11d8d3SAndy Adamson return 0; 56197f11d8d3SAndy Adamson out_overflow: 56207f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 56217f11d8d3SAndy Adamson return -EIO; 56227f11d8d3SAndy Adamson } 5623b1f69b75SAndy Adamson 5624b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5625b1f69b75SAndy Adamson struct pnfs_device *pdev) 5626b1f69b75SAndy Adamson { 5627b1f69b75SAndy Adamson __be32 *p; 5628b1f69b75SAndy Adamson uint32_t len, type; 5629b1f69b75SAndy Adamson int status; 5630b1f69b75SAndy Adamson 5631b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5632b1f69b75SAndy Adamson if (status) { 5633b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5634b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5635b1f69b75SAndy Adamson if (unlikely(!p)) 5636b1f69b75SAndy Adamson goto out_overflow; 5637b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5638b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5639b1f69b75SAndy Adamson __func__, pdev->mincount); 5640b1f69b75SAndy Adamson } 5641b1f69b75SAndy Adamson return status; 5642b1f69b75SAndy Adamson } 5643b1f69b75SAndy Adamson 5644b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5645b1f69b75SAndy Adamson if (unlikely(!p)) 5646b1f69b75SAndy Adamson goto out_overflow; 5647b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5648b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5649b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5650b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5651b1f69b75SAndy Adamson return -EINVAL; 5652b1f69b75SAndy Adamson } 5653b1f69b75SAndy Adamson /* 5654b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5655b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5656b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5657b1f69b75SAndy Adamson */ 5658b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 565913fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 566013fe4ba1STrond Myklebust goto out_overflow; 5661b1f69b75SAndy Adamson 5662b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5663b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5664b1f69b75SAndy Adamson if (unlikely(!p)) 5665b1f69b75SAndy Adamson goto out_overflow; 5666b1f69b75SAndy Adamson len = be32_to_cpup(p); 5667b1f69b75SAndy Adamson if (len) { 5668ead00597SChuck Lever uint32_t i; 5669b1f69b75SAndy Adamson 5670b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5671b1f69b75SAndy Adamson if (unlikely(!p)) 5672b1f69b75SAndy Adamson goto out_overflow; 5673b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5674b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5675b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5676b1f69b75SAndy Adamson __func__); 5677b1f69b75SAndy Adamson return -EIO; 5678b1f69b75SAndy Adamson } 5679b1f69b75SAndy Adamson } 5680b1f69b75SAndy Adamson } 5681b1f69b75SAndy Adamson return 0; 5682b1f69b75SAndy Adamson out_overflow: 5683b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5684b1f69b75SAndy Adamson return -EIO; 5685b1f69b75SAndy Adamson } 5686b1f69b75SAndy Adamson 5687b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5688b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5689b1f69b75SAndy Adamson { 5690b1f69b75SAndy Adamson __be32 *p; 5691b1f69b75SAndy Adamson int status; 5692b1f69b75SAndy Adamson u32 layout_count; 569364bd577eSTrond Myklebust u32 recvd; 5694b1f69b75SAndy Adamson 5695b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5696b1f69b75SAndy Adamson if (status) 5697b1f69b75SAndy Adamson return status; 5698ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5699b1f69b75SAndy Adamson if (unlikely(!p)) 5700b1f69b75SAndy Adamson goto out_overflow; 5701ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5702ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5703ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5704ea9d23f5STrond Myklebust if (unlikely(!p)) 5705ea9d23f5STrond Myklebust goto out_overflow; 5706b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5707b1f69b75SAndy Adamson if (!layout_count) { 5708b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5709b1f69b75SAndy Adamson __func__); 5710b1f69b75SAndy Adamson return -EINVAL; 5711b1f69b75SAndy Adamson } 5712b1f69b75SAndy Adamson 571335124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5714b1f69b75SAndy Adamson if (unlikely(!p)) 5715b1f69b75SAndy Adamson goto out_overflow; 5716b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5717b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5718b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5719b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 572035124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5721b1f69b75SAndy Adamson 5722b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5723b1f69b75SAndy Adamson __func__, 5724b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5725b1f69b75SAndy Adamson (unsigned long)res->range.length, 5726b1f69b75SAndy Adamson res->range.iomode, 5727b1f69b75SAndy Adamson res->type, 572835124a09SWeston Andros Adamson res->layoutp->len); 5729b1f69b75SAndy Adamson 573064bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 573135124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 573235124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 573335124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 573435124a09SWeston Andros Adamson res->layoutp->len, recvd); 573535124a09SWeston Andros Adamson return -EINVAL; 573635124a09SWeston Andros Adamson } 573735124a09SWeston Andros Adamson 5738b1f69b75SAndy Adamson if (layout_count > 1) { 5739b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5740b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5741b1f69b75SAndy Adamson * the client may see a response that is less than the 5742b1f69b75SAndy Adamson * minimum it requested. 5743b1f69b75SAndy Adamson */ 5744b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5745b1f69b75SAndy Adamson __func__, layout_count); 5746b1f69b75SAndy Adamson } 5747b1f69b75SAndy Adamson 5748b1f69b75SAndy Adamson return 0; 5749b1f69b75SAndy Adamson out_overflow: 5750b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5751b1f69b75SAndy Adamson return -EIO; 5752b1f69b75SAndy Adamson } 5753863a3c6cSAndy Adamson 5754cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5755cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5756cbe82603SBenny Halevy { 5757cbe82603SBenny Halevy __be32 *p; 5758cbe82603SBenny Halevy int status; 5759cbe82603SBenny Halevy 5760cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5761cbe82603SBenny Halevy if (status) 5762cbe82603SBenny Halevy return status; 5763cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5764cbe82603SBenny Halevy if (unlikely(!p)) 5765cbe82603SBenny Halevy goto out_overflow; 5766cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5767cbe82603SBenny Halevy if (res->lrs_present) 5768cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5769cbe82603SBenny Halevy return status; 5770cbe82603SBenny Halevy out_overflow: 5771cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5772cbe82603SBenny Halevy return -EIO; 5773cbe82603SBenny Halevy } 5774cbe82603SBenny Halevy 5775863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5776863a3c6cSAndy Adamson struct rpc_rqst *req, 5777863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5778863a3c6cSAndy Adamson { 5779863a3c6cSAndy Adamson __be32 *p; 5780863a3c6cSAndy Adamson __u32 sizechanged; 5781863a3c6cSAndy Adamson int status; 5782863a3c6cSAndy Adamson 5783863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5784db29c089SAndy Adamson res->status = status; 5785863a3c6cSAndy Adamson if (status) 5786863a3c6cSAndy Adamson return status; 5787863a3c6cSAndy Adamson 5788863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5789863a3c6cSAndy Adamson if (unlikely(!p)) 5790863a3c6cSAndy Adamson goto out_overflow; 5791863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5792863a3c6cSAndy Adamson 5793863a3c6cSAndy Adamson if (sizechanged) { 5794863a3c6cSAndy Adamson /* throw away new size */ 5795863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5796863a3c6cSAndy Adamson if (unlikely(!p)) 5797863a3c6cSAndy Adamson goto out_overflow; 5798863a3c6cSAndy Adamson } 5799863a3c6cSAndy Adamson return 0; 5800863a3c6cSAndy Adamson out_overflow: 5801863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5802863a3c6cSAndy Adamson return -EIO; 5803863a3c6cSAndy Adamson } 58047d974794SBryan Schumaker 58057d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 58067d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 58077d974794SBryan Schumaker { 58087d974794SBryan Schumaker __be32 *p; 58097d974794SBryan Schumaker int status; 58107d974794SBryan Schumaker int num_res; 58117d974794SBryan Schumaker 58127d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 58137d974794SBryan Schumaker if (status) 58147d974794SBryan Schumaker return status; 58157d974794SBryan Schumaker 58167d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58177d974794SBryan Schumaker if (unlikely(!p)) 58187d974794SBryan Schumaker goto out_overflow; 58197d974794SBryan Schumaker num_res = be32_to_cpup(p++); 58207d974794SBryan Schumaker if (num_res != 1) 58217d974794SBryan Schumaker goto out; 58227d974794SBryan Schumaker 58237d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58247d974794SBryan Schumaker if (unlikely(!p)) 58257d974794SBryan Schumaker goto out_overflow; 58267d974794SBryan Schumaker res->status = be32_to_cpup(p++); 58271cab0652SBryan Schumaker 58281cab0652SBryan Schumaker return status; 58297d974794SBryan Schumaker out_overflow: 58307d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 58317d974794SBryan Schumaker out: 58327d974794SBryan Schumaker return -EIO; 58337d974794SBryan Schumaker } 58349aeda35fSBryan Schumaker 58359aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 58369aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 58379aeda35fSBryan Schumaker { 58389aeda35fSBryan Schumaker __be32 *p; 58399aeda35fSBryan Schumaker int status; 58409aeda35fSBryan Schumaker 58419aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 58429aeda35fSBryan Schumaker if (status) 58439aeda35fSBryan Schumaker return status; 58449aeda35fSBryan Schumaker 58459aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 58469aeda35fSBryan Schumaker if (unlikely(!p)) 58479aeda35fSBryan Schumaker goto out_overflow; 58489aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 58499aeda35fSBryan Schumaker return res->status; 58509aeda35fSBryan Schumaker out_overflow: 58519aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 58529aeda35fSBryan Schumaker return -EIO; 58539aeda35fSBryan Schumaker } 5854b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5855b1f69b75SAndy Adamson 58561da177e4SLinus Torvalds /* 585749c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 585849c2559eSBenny Halevy */ 585949c2559eSBenny Halevy 586049c2559eSBenny Halevy /* 58611da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 58621da177e4SLinus Torvalds */ 5863bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5864bf269551SChuck Lever struct xdr_stream *xdr, 5865bf269551SChuck Lever struct nfs_closeres *res) 58661da177e4SLinus Torvalds { 58671da177e4SLinus Torvalds struct compound_hdr hdr; 58681da177e4SLinus Torvalds int status; 58691da177e4SLinus Torvalds 5870bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58711da177e4SLinus Torvalds if (status) 58721da177e4SLinus Torvalds goto out; 5873bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58749b7b9fccSAndy Adamson if (status) 58759b7b9fccSAndy Adamson goto out; 5876bf269551SChuck Lever status = decode_putfh(xdr); 58771da177e4SLinus Torvalds if (status) 58781da177e4SLinus Torvalds goto out; 5879bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5880516a6af6STrond Myklebust if (status != 0) 5881516a6af6STrond Myklebust goto out; 58826926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58831da177e4SLinus Torvalds out: 58841da177e4SLinus Torvalds return status; 58851da177e4SLinus Torvalds } 58861da177e4SLinus Torvalds 58871da177e4SLinus Torvalds /* 58881da177e4SLinus Torvalds * Decode ACCESS response 58891da177e4SLinus Torvalds */ 5890bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5891bf269551SChuck Lever struct nfs4_accessres *res) 58921da177e4SLinus Torvalds { 58931da177e4SLinus Torvalds struct compound_hdr hdr; 58941da177e4SLinus Torvalds int status; 58951da177e4SLinus Torvalds 5896bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58979b7b9fccSAndy Adamson if (status) 58989b7b9fccSAndy Adamson goto out; 5899bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59009b7b9fccSAndy Adamson if (status) 59011da177e4SLinus Torvalds goto out; 5902bf269551SChuck Lever status = decode_putfh(xdr); 590376b32999STrond Myklebust if (status != 0) 590476b32999STrond Myklebust goto out; 59056168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 590676b32999STrond Myklebust if (status != 0) 590776b32999STrond Myklebust goto out; 59086926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 59091da177e4SLinus Torvalds out: 59101da177e4SLinus Torvalds return status; 59111da177e4SLinus Torvalds } 59121da177e4SLinus Torvalds 59131da177e4SLinus Torvalds /* 59141da177e4SLinus Torvalds * Decode LOOKUP response 59151da177e4SLinus Torvalds */ 5916bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5917bf269551SChuck Lever struct nfs4_lookup_res *res) 59181da177e4SLinus Torvalds { 59191da177e4SLinus Torvalds struct compound_hdr hdr; 59201da177e4SLinus Torvalds int status; 59211da177e4SLinus Torvalds 5922bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59239b7b9fccSAndy Adamson if (status) 59249b7b9fccSAndy Adamson goto out; 5925bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59269b7b9fccSAndy Adamson if (status) 59271da177e4SLinus Torvalds goto out; 5928bf269551SChuck Lever status = decode_putfh(xdr); 5929bf269551SChuck Lever if (status) 59301da177e4SLinus Torvalds goto out; 5931bf269551SChuck Lever status = decode_lookup(xdr); 5932bf269551SChuck Lever if (status) 59331da177e4SLinus Torvalds goto out; 5934bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5935bf269551SChuck Lever if (status) 59361da177e4SLinus Torvalds goto out; 59376926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59381da177e4SLinus Torvalds out: 59391da177e4SLinus Torvalds return status; 59401da177e4SLinus Torvalds } 59411da177e4SLinus Torvalds 59421da177e4SLinus Torvalds /* 59431da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 59441da177e4SLinus Torvalds */ 5945bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5946bf269551SChuck Lever struct xdr_stream *xdr, 5947bf269551SChuck Lever struct nfs4_lookup_res *res) 59481da177e4SLinus Torvalds { 59491da177e4SLinus Torvalds struct compound_hdr hdr; 59501da177e4SLinus Torvalds int status; 59511da177e4SLinus Torvalds 5952bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59539b7b9fccSAndy Adamson if (status) 59549b7b9fccSAndy Adamson goto out; 5955bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59569b7b9fccSAndy Adamson if (status) 59571da177e4SLinus Torvalds goto out; 5958bf269551SChuck Lever status = decode_putrootfh(xdr); 5959bf269551SChuck Lever if (status) 59601da177e4SLinus Torvalds goto out; 5961bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5962bf269551SChuck Lever if (status == 0) 59636926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59641da177e4SLinus Torvalds out: 59651da177e4SLinus Torvalds return status; 59661da177e4SLinus Torvalds } 59671da177e4SLinus Torvalds 59681da177e4SLinus Torvalds /* 59691da177e4SLinus Torvalds * Decode REMOVE response 59701da177e4SLinus Torvalds */ 5971bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5972bf269551SChuck Lever struct nfs_removeres *res) 59731da177e4SLinus Torvalds { 59741da177e4SLinus Torvalds struct compound_hdr hdr; 59751da177e4SLinus Torvalds int status; 59761da177e4SLinus Torvalds 5977bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59789b7b9fccSAndy Adamson if (status) 59799b7b9fccSAndy Adamson goto out; 5980bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59819b7b9fccSAndy Adamson if (status) 59821da177e4SLinus Torvalds goto out; 5983bf269551SChuck Lever status = decode_putfh(xdr); 5984bf269551SChuck Lever if (status) 598516e42959STrond Myklebust goto out; 5986bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 59871da177e4SLinus Torvalds out: 59881da177e4SLinus Torvalds return status; 59891da177e4SLinus Torvalds } 59901da177e4SLinus Torvalds 59911da177e4SLinus Torvalds /* 59921da177e4SLinus Torvalds * Decode RENAME response 59931da177e4SLinus Torvalds */ 5994bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5995bf269551SChuck Lever struct nfs_renameres *res) 59961da177e4SLinus Torvalds { 59971da177e4SLinus Torvalds struct compound_hdr hdr; 59981da177e4SLinus Torvalds int status; 59991da177e4SLinus Torvalds 6000bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60019b7b9fccSAndy Adamson if (status) 60029b7b9fccSAndy Adamson goto out; 6003bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60049b7b9fccSAndy Adamson if (status) 60051da177e4SLinus Torvalds goto out; 6006bf269551SChuck Lever status = decode_putfh(xdr); 6007bf269551SChuck Lever if (status) 60081da177e4SLinus Torvalds goto out; 6009bf269551SChuck Lever status = decode_savefh(xdr); 6010bf269551SChuck Lever if (status) 60111da177e4SLinus Torvalds goto out; 6012bf269551SChuck Lever status = decode_putfh(xdr); 6013bf269551SChuck Lever if (status) 60141da177e4SLinus Torvalds goto out; 6015bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 60161da177e4SLinus Torvalds out: 60171da177e4SLinus Torvalds return status; 60181da177e4SLinus Torvalds } 60191da177e4SLinus Torvalds 60201da177e4SLinus Torvalds /* 60211da177e4SLinus Torvalds * Decode LINK response 60221da177e4SLinus Torvalds */ 6023bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6024bf269551SChuck Lever struct nfs4_link_res *res) 60251da177e4SLinus Torvalds { 60261da177e4SLinus Torvalds struct compound_hdr hdr; 60271da177e4SLinus Torvalds int status; 60281da177e4SLinus Torvalds 6029bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60309b7b9fccSAndy Adamson if (status) 60319b7b9fccSAndy Adamson goto out; 6032bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60339b7b9fccSAndy Adamson if (status) 60341da177e4SLinus Torvalds goto out; 6035bf269551SChuck Lever status = decode_putfh(xdr); 6036bf269551SChuck Lever if (status) 60371da177e4SLinus Torvalds goto out; 6038bf269551SChuck Lever status = decode_savefh(xdr); 6039bf269551SChuck Lever if (status) 60401da177e4SLinus Torvalds goto out; 6041bf269551SChuck Lever status = decode_putfh(xdr); 6042bf269551SChuck Lever if (status) 60431da177e4SLinus Torvalds goto out; 6044bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6045bf269551SChuck Lever if (status) 604691ba2eeeSTrond Myklebust goto out; 604791ba2eeeSTrond Myklebust /* 604891ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 604991ba2eeeSTrond Myklebust * filehandle. 605091ba2eeeSTrond Myklebust */ 6051bf269551SChuck Lever status = decode_restorefh(xdr); 6052bf269551SChuck Lever if (status) 605391ba2eeeSTrond Myklebust goto out; 60546926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60551da177e4SLinus Torvalds out: 60561da177e4SLinus Torvalds return status; 60571da177e4SLinus Torvalds } 60581da177e4SLinus Torvalds 60591da177e4SLinus Torvalds /* 60601da177e4SLinus Torvalds * Decode CREATE response 60611da177e4SLinus Torvalds */ 6062bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6063bf269551SChuck Lever struct nfs4_create_res *res) 60641da177e4SLinus Torvalds { 60651da177e4SLinus Torvalds struct compound_hdr hdr; 60661da177e4SLinus Torvalds int status; 60671da177e4SLinus Torvalds 6068bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60699b7b9fccSAndy Adamson if (status) 60709b7b9fccSAndy Adamson goto out; 6071bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60729b7b9fccSAndy Adamson if (status) 60731da177e4SLinus Torvalds goto out; 6074bf269551SChuck Lever status = decode_putfh(xdr); 6075bf269551SChuck Lever if (status) 60761da177e4SLinus Torvalds goto out; 6077bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6078bf269551SChuck Lever if (status) 60791da177e4SLinus Torvalds goto out; 6080bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6081bf269551SChuck Lever if (status) 60821da177e4SLinus Torvalds goto out; 60837c317fcfSTrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60841da177e4SLinus Torvalds out: 60851da177e4SLinus Torvalds return status; 60861da177e4SLinus Torvalds } 60871da177e4SLinus Torvalds 60881da177e4SLinus Torvalds /* 60891da177e4SLinus Torvalds * Decode SYMLINK response 60901da177e4SLinus Torvalds */ 6091bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6092bf269551SChuck Lever struct nfs4_create_res *res) 60931da177e4SLinus Torvalds { 6094bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60951da177e4SLinus Torvalds } 60961da177e4SLinus Torvalds 60971da177e4SLinus Torvalds /* 60981da177e4SLinus Torvalds * Decode GETATTR response 60991da177e4SLinus Torvalds */ 6100bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6101bf269551SChuck Lever struct nfs4_getattr_res *res) 61021da177e4SLinus Torvalds { 61031da177e4SLinus Torvalds struct compound_hdr hdr; 61041da177e4SLinus Torvalds int status; 61051da177e4SLinus Torvalds 6106bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61071da177e4SLinus Torvalds if (status) 61081da177e4SLinus Torvalds goto out; 6109bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61109b7b9fccSAndy Adamson if (status) 61119b7b9fccSAndy Adamson goto out; 6112bf269551SChuck Lever status = decode_putfh(xdr); 61131da177e4SLinus Torvalds if (status) 61141da177e4SLinus Torvalds goto out; 61156926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 61161da177e4SLinus Torvalds out: 61171da177e4SLinus Torvalds return status; 61181da177e4SLinus Torvalds } 61191da177e4SLinus Torvalds 612023ec6965SJ. Bruce Fields /* 612123ec6965SJ. Bruce Fields * Encode an SETACL request 612223ec6965SJ. Bruce Fields */ 61239f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 61249f06c719SChuck Lever struct nfs_setaclargs *args) 612523ec6965SJ. Bruce Fields { 612623ec6965SJ. Bruce Fields struct compound_hdr hdr = { 612766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 612823ec6965SJ. Bruce Fields }; 612923ec6965SJ. Bruce Fields 61309f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 61319f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 61329f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 61339f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6134d017931cSAndy Adamson encode_nops(&hdr); 613523ec6965SJ. Bruce Fields } 613605d564feSAndy Adamson 613723ec6965SJ. Bruce Fields /* 613823ec6965SJ. Bruce Fields * Decode SETACL response 613923ec6965SJ. Bruce Fields */ 614023ec6965SJ. Bruce Fields static int 6141bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 614273c403a9SBenny Halevy struct nfs_setaclres *res) 614323ec6965SJ. Bruce Fields { 614423ec6965SJ. Bruce Fields struct compound_hdr hdr; 614523ec6965SJ. Bruce Fields int status; 614623ec6965SJ. Bruce Fields 6147bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 614823ec6965SJ. Bruce Fields if (status) 614923ec6965SJ. Bruce Fields goto out; 6150bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61519b7b9fccSAndy Adamson if (status) 61529b7b9fccSAndy Adamson goto out; 6153bf269551SChuck Lever status = decode_putfh(xdr); 615423ec6965SJ. Bruce Fields if (status) 615523ec6965SJ. Bruce Fields goto out; 6156bf269551SChuck Lever status = decode_setattr(xdr); 615723ec6965SJ. Bruce Fields out: 615823ec6965SJ. Bruce Fields return status; 615923ec6965SJ. Bruce Fields } 61601da177e4SLinus Torvalds 61611da177e4SLinus Torvalds /* 6162029d105eSJ. Bruce Fields * Decode GETACL response 6163029d105eSJ. Bruce Fields */ 6164029d105eSJ. Bruce Fields static int 6165bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6166663c79b3SBenny Halevy struct nfs_getaclres *res) 6167029d105eSJ. Bruce Fields { 6168029d105eSJ. Bruce Fields struct compound_hdr hdr; 6169029d105eSJ. Bruce Fields int status; 6170029d105eSJ. Bruce Fields 6171331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6172331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6173331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6174331818f1STrond Myklebust } 6175bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6176029d105eSJ. Bruce Fields if (status) 6177029d105eSJ. Bruce Fields goto out; 6178bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61799b7b9fccSAndy Adamson if (status) 61809b7b9fccSAndy Adamson goto out; 6181bf269551SChuck Lever status = decode_putfh(xdr); 6182029d105eSJ. Bruce Fields if (status) 6183029d105eSJ. Bruce Fields goto out; 6184bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6185029d105eSJ. Bruce Fields 6186029d105eSJ. Bruce Fields out: 6187029d105eSJ. Bruce Fields return status; 6188029d105eSJ. Bruce Fields } 6189029d105eSJ. Bruce Fields 6190029d105eSJ. Bruce Fields /* 61911da177e4SLinus Torvalds * Decode CLOSE response 61921da177e4SLinus Torvalds */ 6193bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6194bf269551SChuck Lever struct nfs_closeres *res) 61951da177e4SLinus Torvalds { 61961da177e4SLinus Torvalds struct compound_hdr hdr; 61971da177e4SLinus Torvalds int status; 61981da177e4SLinus Torvalds 6199bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62001da177e4SLinus Torvalds if (status) 62011da177e4SLinus Torvalds goto out; 6202bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62039b7b9fccSAndy Adamson if (status) 62049b7b9fccSAndy Adamson goto out; 6205bf269551SChuck Lever status = decode_putfh(xdr); 62061da177e4SLinus Torvalds if (status) 62071da177e4SLinus Torvalds goto out; 6208bf269551SChuck Lever status = decode_close(xdr, res); 6209516a6af6STrond Myklebust if (status != 0) 6210516a6af6STrond Myklebust goto out; 6211516a6af6STrond Myklebust /* 6212516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6213516a6af6STrond Myklebust * in which case the getattr call will fail with 6214516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6215516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6216516a6af6STrond Myklebust */ 62176926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62181da177e4SLinus Torvalds out: 62191da177e4SLinus Torvalds return status; 62201da177e4SLinus Torvalds } 62211da177e4SLinus Torvalds 62221da177e4SLinus Torvalds /* 62231da177e4SLinus Torvalds * Decode OPEN response 62241da177e4SLinus Torvalds */ 6225bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6226bf269551SChuck Lever struct nfs_openres *res) 62271da177e4SLinus Torvalds { 62281da177e4SLinus Torvalds struct compound_hdr hdr; 62291da177e4SLinus Torvalds int status; 62301da177e4SLinus Torvalds 6231bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62321da177e4SLinus Torvalds if (status) 62331da177e4SLinus Torvalds goto out; 6234bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62359b7b9fccSAndy Adamson if (status) 62369b7b9fccSAndy Adamson goto out; 6237bf269551SChuck Lever status = decode_putfh(xdr); 62381da177e4SLinus Torvalds if (status) 62391da177e4SLinus Torvalds goto out; 6240bf269551SChuck Lever status = decode_open(xdr, res); 62411da177e4SLinus Torvalds if (status) 62421da177e4SLinus Torvalds goto out; 624301913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 624401913b49SWeston Andros Adamson if (status) 62451da177e4SLinus Torvalds goto out; 6246ae2bb032SWeston Andros Adamson if (res->access_request) 62476168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 624890ff0c54STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62491da177e4SLinus Torvalds out: 62501da177e4SLinus Torvalds return status; 62511da177e4SLinus Torvalds } 62521da177e4SLinus Torvalds 62531da177e4SLinus Torvalds /* 62541da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 62551da177e4SLinus Torvalds */ 6256bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6257bf269551SChuck Lever struct xdr_stream *xdr, 6258bf269551SChuck Lever struct nfs_open_confirmres *res) 62591da177e4SLinus Torvalds { 62601da177e4SLinus Torvalds struct compound_hdr hdr; 62611da177e4SLinus Torvalds int status; 62621da177e4SLinus Torvalds 6263bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62641da177e4SLinus Torvalds if (status) 62651da177e4SLinus Torvalds goto out; 6266bf269551SChuck Lever status = decode_putfh(xdr); 62671da177e4SLinus Torvalds if (status) 62681da177e4SLinus Torvalds goto out; 6269bf269551SChuck Lever status = decode_open_confirm(xdr, res); 62701da177e4SLinus Torvalds out: 62711da177e4SLinus Torvalds return status; 62721da177e4SLinus Torvalds } 62731da177e4SLinus Torvalds 62741da177e4SLinus Torvalds /* 62751da177e4SLinus Torvalds * Decode OPEN response 62761da177e4SLinus Torvalds */ 6277bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6278bf269551SChuck Lever struct xdr_stream *xdr, 6279bf269551SChuck Lever struct nfs_openres *res) 62801da177e4SLinus Torvalds { 62811da177e4SLinus Torvalds struct compound_hdr hdr; 62821da177e4SLinus Torvalds int status; 62831da177e4SLinus Torvalds 6284bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62851da177e4SLinus Torvalds if (status) 62861da177e4SLinus Torvalds goto out; 6287bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62889b7b9fccSAndy Adamson if (status) 62899b7b9fccSAndy Adamson goto out; 6290bf269551SChuck Lever status = decode_putfh(xdr); 62911da177e4SLinus Torvalds if (status) 62921da177e4SLinus Torvalds goto out; 6293bf269551SChuck Lever status = decode_open(xdr, res); 6294864472e9STrond Myklebust if (status) 6295864472e9STrond Myklebust goto out; 6296ae2bb032SWeston Andros Adamson if (res->access_request) 62976168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 62986926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62991da177e4SLinus Torvalds out: 63001da177e4SLinus Torvalds return status; 63011da177e4SLinus Torvalds } 63021da177e4SLinus Torvalds 63031da177e4SLinus Torvalds /* 63041da177e4SLinus Torvalds * Decode SETATTR response 63051da177e4SLinus Torvalds */ 6306bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6307bf269551SChuck Lever struct xdr_stream *xdr, 6308bf269551SChuck Lever struct nfs_setattrres *res) 63091da177e4SLinus Torvalds { 63101da177e4SLinus Torvalds struct compound_hdr hdr; 63111da177e4SLinus Torvalds int status; 63121da177e4SLinus Torvalds 6313bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63141da177e4SLinus Torvalds if (status) 63151da177e4SLinus Torvalds goto out; 6316bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63179b7b9fccSAndy Adamson if (status) 63189b7b9fccSAndy Adamson goto out; 6319bf269551SChuck Lever status = decode_putfh(xdr); 63201da177e4SLinus Torvalds if (status) 63211da177e4SLinus Torvalds goto out; 6322bf269551SChuck Lever status = decode_setattr(xdr); 63231da177e4SLinus Torvalds if (status) 63241da177e4SLinus Torvalds goto out; 63256926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63261da177e4SLinus Torvalds out: 63271da177e4SLinus Torvalds return status; 63281da177e4SLinus Torvalds } 63291da177e4SLinus Torvalds 63301da177e4SLinus Torvalds /* 63311da177e4SLinus Torvalds * Decode LOCK response 63321da177e4SLinus Torvalds */ 6333bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6334bf269551SChuck Lever struct nfs_lock_res *res) 63351da177e4SLinus Torvalds { 63361da177e4SLinus Torvalds struct compound_hdr hdr; 63371da177e4SLinus Torvalds int status; 63381da177e4SLinus Torvalds 6339bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63401da177e4SLinus Torvalds if (status) 63411da177e4SLinus Torvalds goto out; 6342bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63439b7b9fccSAndy Adamson if (status) 63449b7b9fccSAndy Adamson goto out; 6345bf269551SChuck Lever status = decode_putfh(xdr); 63461da177e4SLinus Torvalds if (status) 63471da177e4SLinus Torvalds goto out; 6348bf269551SChuck Lever status = decode_lock(xdr, res); 63491da177e4SLinus Torvalds out: 63501da177e4SLinus Torvalds return status; 63511da177e4SLinus Torvalds } 63521da177e4SLinus Torvalds 63531da177e4SLinus Torvalds /* 63541da177e4SLinus Torvalds * Decode LOCKT response 63551da177e4SLinus Torvalds */ 6356bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6357bf269551SChuck Lever struct nfs_lockt_res *res) 63581da177e4SLinus Torvalds { 63591da177e4SLinus Torvalds struct compound_hdr hdr; 63601da177e4SLinus Torvalds int status; 63611da177e4SLinus Torvalds 6362bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63631da177e4SLinus Torvalds if (status) 63641da177e4SLinus Torvalds goto out; 6365bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63669b7b9fccSAndy Adamson if (status) 63679b7b9fccSAndy Adamson goto out; 6368bf269551SChuck Lever status = decode_putfh(xdr); 63691da177e4SLinus Torvalds if (status) 63701da177e4SLinus Torvalds goto out; 6371bf269551SChuck Lever status = decode_lockt(xdr, res); 63721da177e4SLinus Torvalds out: 63731da177e4SLinus Torvalds return status; 63741da177e4SLinus Torvalds } 63751da177e4SLinus Torvalds 63761da177e4SLinus Torvalds /* 63771da177e4SLinus Torvalds * Decode LOCKU response 63781da177e4SLinus Torvalds */ 6379bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6380bf269551SChuck Lever struct nfs_locku_res *res) 63811da177e4SLinus Torvalds { 63821da177e4SLinus Torvalds struct compound_hdr hdr; 63831da177e4SLinus Torvalds int status; 63841da177e4SLinus Torvalds 6385bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63861da177e4SLinus Torvalds if (status) 63871da177e4SLinus Torvalds goto out; 6388bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63899b7b9fccSAndy Adamson if (status) 63909b7b9fccSAndy Adamson goto out; 6391bf269551SChuck Lever status = decode_putfh(xdr); 63921da177e4SLinus Torvalds if (status) 63931da177e4SLinus Torvalds goto out; 6394bf269551SChuck Lever status = decode_locku(xdr, res); 63951da177e4SLinus Torvalds out: 63961da177e4SLinus Torvalds return status; 63971da177e4SLinus Torvalds } 63981da177e4SLinus Torvalds 6399bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6400bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6401d3c7b7ccSTrond Myklebust { 6402d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6403d3c7b7ccSTrond Myklebust int status; 6404d3c7b7ccSTrond Myklebust 6405bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6406d3c7b7ccSTrond Myklebust if (!status) 6407bf269551SChuck Lever status = decode_release_lockowner(xdr); 6408d3c7b7ccSTrond Myklebust return status; 6409d3c7b7ccSTrond Myklebust } 6410d3c7b7ccSTrond Myklebust 64111da177e4SLinus Torvalds /* 64121da177e4SLinus Torvalds * Decode READLINK response 64131da177e4SLinus Torvalds */ 6414bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6415bf269551SChuck Lever struct xdr_stream *xdr, 6416f50c7000SBenny Halevy struct nfs4_readlink_res *res) 64171da177e4SLinus Torvalds { 64181da177e4SLinus Torvalds struct compound_hdr hdr; 64191da177e4SLinus Torvalds int status; 64201da177e4SLinus Torvalds 6421bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64221da177e4SLinus Torvalds if (status) 64231da177e4SLinus Torvalds goto out; 6424bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64259b7b9fccSAndy Adamson if (status) 64269b7b9fccSAndy Adamson goto out; 6427bf269551SChuck Lever status = decode_putfh(xdr); 64281da177e4SLinus Torvalds if (status) 64291da177e4SLinus Torvalds goto out; 6430bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 64311da177e4SLinus Torvalds out: 64321da177e4SLinus Torvalds return status; 64331da177e4SLinus Torvalds } 64341da177e4SLinus Torvalds 64351da177e4SLinus Torvalds /* 64361da177e4SLinus Torvalds * Decode READDIR response 64371da177e4SLinus Torvalds */ 6438bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6439bf269551SChuck Lever struct nfs4_readdir_res *res) 64401da177e4SLinus Torvalds { 64411da177e4SLinus Torvalds struct compound_hdr hdr; 64421da177e4SLinus Torvalds int status; 64431da177e4SLinus Torvalds 6444bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64451da177e4SLinus Torvalds if (status) 64461da177e4SLinus Torvalds goto out; 6447bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64489b7b9fccSAndy Adamson if (status) 64499b7b9fccSAndy Adamson goto out; 6450bf269551SChuck Lever status = decode_putfh(xdr); 64511da177e4SLinus Torvalds if (status) 64521da177e4SLinus Torvalds goto out; 6453bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 64541da177e4SLinus Torvalds out: 64551da177e4SLinus Torvalds return status; 64561da177e4SLinus Torvalds } 64571da177e4SLinus Torvalds 64581da177e4SLinus Torvalds /* 64591da177e4SLinus Torvalds * Decode Read response 64601da177e4SLinus Torvalds */ 6461bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6462bf269551SChuck Lever struct nfs_readres *res) 64631da177e4SLinus Torvalds { 64641da177e4SLinus Torvalds struct compound_hdr hdr; 64651da177e4SLinus Torvalds int status; 64661da177e4SLinus Torvalds 6467bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64681da177e4SLinus Torvalds if (status) 64691da177e4SLinus Torvalds goto out; 6470bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64719b7b9fccSAndy Adamson if (status) 64729b7b9fccSAndy Adamson goto out; 6473bf269551SChuck Lever status = decode_putfh(xdr); 64741da177e4SLinus Torvalds if (status) 64751da177e4SLinus Torvalds goto out; 6476bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 64771da177e4SLinus Torvalds if (!status) 64781da177e4SLinus Torvalds status = res->count; 64791da177e4SLinus Torvalds out: 64801da177e4SLinus Torvalds return status; 64811da177e4SLinus Torvalds } 64821da177e4SLinus Torvalds 64831da177e4SLinus Torvalds /* 64841da177e4SLinus Torvalds * Decode WRITE response 64851da177e4SLinus Torvalds */ 6486bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6487bf269551SChuck Lever struct nfs_writeres *res) 64881da177e4SLinus Torvalds { 64891da177e4SLinus Torvalds struct compound_hdr hdr; 64901da177e4SLinus Torvalds int status; 64911da177e4SLinus Torvalds 6492bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64931da177e4SLinus Torvalds if (status) 64941da177e4SLinus Torvalds goto out; 6495bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64969b7b9fccSAndy Adamson if (status) 64979b7b9fccSAndy Adamson goto out; 6498bf269551SChuck Lever status = decode_putfh(xdr); 64991da177e4SLinus Torvalds if (status) 65001da177e4SLinus Torvalds goto out; 6501bf269551SChuck Lever status = decode_write(xdr, res); 65024f9838c7STrond Myklebust if (status) 65034f9838c7STrond Myklebust goto out; 65047ffd1064SFred Isaman if (res->fattr) 65056926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 65061da177e4SLinus Torvalds if (!status) 65071da177e4SLinus Torvalds status = res->count; 65081da177e4SLinus Torvalds out: 65091da177e4SLinus Torvalds return status; 65101da177e4SLinus Torvalds } 65111da177e4SLinus Torvalds 65121da177e4SLinus Torvalds /* 65131da177e4SLinus Torvalds * Decode COMMIT response 65141da177e4SLinus Torvalds */ 6515bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 65160b7c0153SFred Isaman struct nfs_commitres *res) 65171da177e4SLinus Torvalds { 65181da177e4SLinus Torvalds struct compound_hdr hdr; 65191da177e4SLinus Torvalds int status; 65201da177e4SLinus Torvalds 6521bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65221da177e4SLinus Torvalds if (status) 65231da177e4SLinus Torvalds goto out; 6524bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65259b7b9fccSAndy Adamson if (status) 65269b7b9fccSAndy Adamson goto out; 6527bf269551SChuck Lever status = decode_putfh(xdr); 65281da177e4SLinus Torvalds if (status) 65291da177e4SLinus Torvalds goto out; 6530bf269551SChuck Lever status = decode_commit(xdr, res); 65311da177e4SLinus Torvalds out: 65321da177e4SLinus Torvalds return status; 65331da177e4SLinus Torvalds } 65341da177e4SLinus Torvalds 65351da177e4SLinus Torvalds /* 65368b173218SRicardo Labiaga * Decode FSINFO response 65371da177e4SLinus Torvalds */ 6538bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 65393dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 65401da177e4SLinus Torvalds { 65411da177e4SLinus Torvalds struct compound_hdr hdr; 65421da177e4SLinus Torvalds int status; 65431da177e4SLinus Torvalds 6544bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65451da177e4SLinus Torvalds if (!status) 6546bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65479b7b9fccSAndy Adamson if (!status) 6548bf269551SChuck Lever status = decode_putfh(xdr); 65491da177e4SLinus Torvalds if (!status) 6550bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 65511da177e4SLinus Torvalds return status; 65521da177e4SLinus Torvalds } 65531da177e4SLinus Torvalds 65541da177e4SLinus Torvalds /* 65558b173218SRicardo Labiaga * Decode PATHCONF response 65561da177e4SLinus Torvalds */ 6557bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6558d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 65591da177e4SLinus Torvalds { 65601da177e4SLinus Torvalds struct compound_hdr hdr; 65611da177e4SLinus Torvalds int status; 65621da177e4SLinus Torvalds 6563bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65641da177e4SLinus Torvalds if (!status) 6565bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65669b7b9fccSAndy Adamson if (!status) 6567bf269551SChuck Lever status = decode_putfh(xdr); 65681da177e4SLinus Torvalds if (!status) 6569bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 65701da177e4SLinus Torvalds return status; 65711da177e4SLinus Torvalds } 65721da177e4SLinus Torvalds 65731da177e4SLinus Torvalds /* 65748b173218SRicardo Labiaga * Decode STATFS response 65751da177e4SLinus Torvalds */ 6576bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 657724ad148aSBenny Halevy struct nfs4_statfs_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_sequence(xdr, &res->seq_res, req); 65859b7b9fccSAndy Adamson if (!status) 6586bf269551SChuck Lever status = decode_putfh(xdr); 65871da177e4SLinus Torvalds if (!status) 6588bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 65891da177e4SLinus Torvalds return status; 65901da177e4SLinus Torvalds } 65911da177e4SLinus Torvalds 65921da177e4SLinus Torvalds /* 65938b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65941da177e4SLinus Torvalds */ 6595bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6596bf269551SChuck Lever struct xdr_stream *xdr, 6597bf269551SChuck Lever struct nfs4_server_caps_res *res) 65981da177e4SLinus Torvalds { 65991da177e4SLinus Torvalds struct compound_hdr hdr; 66001da177e4SLinus Torvalds int status; 66011da177e4SLinus Torvalds 6602bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66039b7b9fccSAndy Adamson if (status) 66049b7b9fccSAndy Adamson goto out; 6605bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66069b7b9fccSAndy Adamson if (status) 66071da177e4SLinus Torvalds goto out; 6608bf269551SChuck Lever status = decode_putfh(xdr); 6609bf269551SChuck Lever if (status) 66101da177e4SLinus Torvalds goto out; 6611bf269551SChuck Lever status = decode_server_caps(xdr, res); 66121da177e4SLinus Torvalds out: 66131da177e4SLinus Torvalds return status; 66141da177e4SLinus Torvalds } 66151da177e4SLinus Torvalds 66161da177e4SLinus Torvalds /* 66171da177e4SLinus Torvalds * Decode RENEW response 66181da177e4SLinus Torvalds */ 6619bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6620bf269551SChuck Lever void *__unused) 66211da177e4SLinus Torvalds { 66221da177e4SLinus Torvalds struct compound_hdr hdr; 66231da177e4SLinus Torvalds int status; 66241da177e4SLinus Torvalds 6625bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66261da177e4SLinus Torvalds if (!status) 6627bf269551SChuck Lever status = decode_renew(xdr); 66281da177e4SLinus Torvalds return status; 66291da177e4SLinus Torvalds } 66301da177e4SLinus Torvalds 66311da177e4SLinus Torvalds /* 66328b173218SRicardo Labiaga * Decode SETCLIENTID response 66331da177e4SLinus Torvalds */ 6634bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6635bf269551SChuck Lever struct xdr_stream *xdr, 6636bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 66371da177e4SLinus Torvalds { 66381da177e4SLinus Torvalds struct compound_hdr hdr; 66391da177e4SLinus Torvalds int status; 66401da177e4SLinus Torvalds 6641bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66421da177e4SLinus Torvalds if (!status) 6643bf269551SChuck Lever status = decode_setclientid(xdr, res); 66441da177e4SLinus Torvalds return status; 66451da177e4SLinus Torvalds } 66461da177e4SLinus Torvalds 66471da177e4SLinus Torvalds /* 66488b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 66491da177e4SLinus Torvalds */ 6650bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6651bf269551SChuck Lever struct xdr_stream *xdr, 6652bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 66531da177e4SLinus Torvalds { 66541da177e4SLinus Torvalds struct compound_hdr hdr; 66551da177e4SLinus Torvalds int status; 66561da177e4SLinus Torvalds 6657bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66581da177e4SLinus Torvalds if (!status) 6659bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 66601da177e4SLinus Torvalds if (!status) 6661bf269551SChuck Lever status = decode_putrootfh(xdr); 66621da177e4SLinus Torvalds if (!status) 6663bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 66641da177e4SLinus Torvalds return status; 66651da177e4SLinus Torvalds } 66661da177e4SLinus Torvalds 66671da177e4SLinus Torvalds /* 66688b173218SRicardo Labiaga * Decode DELEGRETURN response 66691da177e4SLinus Torvalds */ 6670bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6671bf269551SChuck Lever struct xdr_stream *xdr, 6672bf269551SChuck Lever struct nfs4_delegreturnres *res) 66731da177e4SLinus Torvalds { 66741da177e4SLinus Torvalds struct compound_hdr hdr; 66751da177e4SLinus Torvalds int status; 66761da177e4SLinus Torvalds 6677bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66789b7b9fccSAndy Adamson if (status) 66799b7b9fccSAndy Adamson goto out; 6680bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66819b7b9fccSAndy Adamson if (status) 6682fa178f29STrond Myklebust goto out; 6683bf269551SChuck Lever status = decode_putfh(xdr); 6684fa178f29STrond Myklebust if (status != 0) 6685fa178f29STrond Myklebust goto out; 6686e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6687556ae3bbSJeff Layton if (status != 0) 6688556ae3bbSJeff Layton goto out; 6689e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6690fa178f29STrond Myklebust out: 66911da177e4SLinus Torvalds return status; 66921da177e4SLinus Torvalds } 66931da177e4SLinus Torvalds 6694683b57b4STrond Myklebust /* 66958b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6696683b57b4STrond Myklebust */ 6697bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6698bf269551SChuck Lever struct xdr_stream *xdr, 669922958463SBenny Halevy struct nfs4_fs_locations_res *res) 6700683b57b4STrond Myklebust { 6701683b57b4STrond Myklebust struct compound_hdr hdr; 6702683b57b4STrond Myklebust int status; 6703683b57b4STrond Myklebust 6704bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67059b7b9fccSAndy Adamson if (status) 67069b7b9fccSAndy Adamson goto out; 6707bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67089b7b9fccSAndy Adamson if (status) 6709683b57b4STrond Myklebust goto out; 6710bf269551SChuck Lever status = decode_putfh(xdr); 6711bf269551SChuck Lever if (status) 6712683b57b4STrond Myklebust goto out; 6713bf269551SChuck Lever status = decode_lookup(xdr); 6714bf269551SChuck Lever if (status) 6715683b57b4STrond Myklebust goto out; 6716bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 67178b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 67188b7e3f49STrond Myklebust NULL, res->fs_locations, 67196926afd1STrond Myklebust res->fs_locations->server); 6720683b57b4STrond Myklebust out: 6721683b57b4STrond Myklebust return status; 6722683b57b4STrond Myklebust } 6723683b57b4STrond Myklebust 67245a5ea0d4SBryan Schumaker /* 67255a5ea0d4SBryan Schumaker * Decode SECINFO response 67265a5ea0d4SBryan Schumaker */ 67275a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 67285a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 67295a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 67305a5ea0d4SBryan Schumaker { 67315a5ea0d4SBryan Schumaker struct compound_hdr hdr; 67325a5ea0d4SBryan Schumaker int status; 67335a5ea0d4SBryan Schumaker 67345a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 67355a5ea0d4SBryan Schumaker if (status) 67365a5ea0d4SBryan Schumaker goto out; 67375a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 67385a5ea0d4SBryan Schumaker if (status) 67395a5ea0d4SBryan Schumaker goto out; 67405a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 67415a5ea0d4SBryan Schumaker if (status) 67425a5ea0d4SBryan Schumaker goto out; 67435a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 67445a5ea0d4SBryan Schumaker out: 67455a5ea0d4SBryan Schumaker return status; 67465a5ea0d4SBryan Schumaker } 67475a5ea0d4SBryan Schumaker 674899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 674999fe60d0SBenny Halevy /* 67507c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 67517c44f1aeSWeston Andros Adamson */ 67527c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 67537c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 67547c44f1aeSWeston Andros Adamson void *res) 67557c44f1aeSWeston Andros Adamson { 67567c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 67577c44f1aeSWeston Andros Adamson int status; 67587c44f1aeSWeston Andros Adamson 67597c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 67607c44f1aeSWeston Andros Adamson if (!status) 67617c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 67627c44f1aeSWeston Andros Adamson return status; 67637c44f1aeSWeston Andros Adamson } 67647c44f1aeSWeston Andros Adamson 67657c44f1aeSWeston Andros Adamson /* 67668b173218SRicardo Labiaga * Decode EXCHANGE_ID response 676799fe60d0SBenny Halevy */ 6768bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6769bf269551SChuck Lever struct xdr_stream *xdr, 677099fe60d0SBenny Halevy void *res) 677199fe60d0SBenny Halevy { 677299fe60d0SBenny Halevy struct compound_hdr hdr; 677399fe60d0SBenny Halevy int status; 677499fe60d0SBenny Halevy 6775bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 677699fe60d0SBenny Halevy if (!status) 6777bf269551SChuck Lever status = decode_exchange_id(xdr, res); 677899fe60d0SBenny Halevy return status; 677999fe60d0SBenny Halevy } 67802050f0ccSAndy Adamson 67812050f0ccSAndy Adamson /* 67828b173218SRicardo Labiaga * Decode CREATE_SESSION response 6783fc931582SAndy Adamson */ 6784bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6785bf269551SChuck Lever struct xdr_stream *xdr, 6786fc931582SAndy Adamson struct nfs41_create_session_res *res) 6787fc931582SAndy Adamson { 6788fc931582SAndy Adamson struct compound_hdr hdr; 6789fc931582SAndy Adamson int status; 6790fc931582SAndy Adamson 6791bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6792fc931582SAndy Adamson if (!status) 6793bf269551SChuck Lever status = decode_create_session(xdr, res); 6794fc931582SAndy Adamson return status; 6795fc931582SAndy Adamson } 6796fc931582SAndy Adamson 6797fc931582SAndy Adamson /* 67988b173218SRicardo Labiaga * Decode DESTROY_SESSION response 67990f3e66c6SAndy Adamson */ 6800bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6801bf269551SChuck Lever struct xdr_stream *xdr, 6802bf269551SChuck Lever void *res) 68030f3e66c6SAndy Adamson { 68040f3e66c6SAndy Adamson struct compound_hdr hdr; 68050f3e66c6SAndy Adamson int status; 68060f3e66c6SAndy Adamson 6807bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68080f3e66c6SAndy Adamson if (!status) 6809bf269551SChuck Lever status = decode_destroy_session(xdr, res); 68100f3e66c6SAndy Adamson return status; 68110f3e66c6SAndy Adamson } 68120f3e66c6SAndy Adamson 68130f3e66c6SAndy Adamson /* 681466245539STrond Myklebust * Decode DESTROY_CLIENTID response 681566245539STrond Myklebust */ 681666245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 681766245539STrond Myklebust struct xdr_stream *xdr, 681866245539STrond Myklebust void *res) 681966245539STrond Myklebust { 682066245539STrond Myklebust struct compound_hdr hdr; 682166245539STrond Myklebust int status; 682266245539STrond Myklebust 682366245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 682466245539STrond Myklebust if (!status) 682566245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 682666245539STrond Myklebust return status; 682766245539STrond Myklebust } 682866245539STrond Myklebust 682966245539STrond Myklebust /* 68308b173218SRicardo Labiaga * Decode SEQUENCE response 6831fc01cea9SAndy Adamson */ 6832bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6833bf269551SChuck Lever struct xdr_stream *xdr, 6834fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6835fc01cea9SAndy Adamson { 6836fc01cea9SAndy Adamson struct compound_hdr hdr; 6837fc01cea9SAndy Adamson int status; 6838fc01cea9SAndy Adamson 6839bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6840fc01cea9SAndy Adamson if (!status) 6841bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6842fc01cea9SAndy Adamson return status; 6843fc01cea9SAndy Adamson } 6844fc01cea9SAndy Adamson 6845fc01cea9SAndy Adamson /* 68468b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 68472050f0ccSAndy Adamson */ 6848bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6849bf269551SChuck Lever struct xdr_stream *xdr, 68502050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 68512050f0ccSAndy Adamson { 68522050f0ccSAndy Adamson struct compound_hdr hdr; 68532050f0ccSAndy Adamson int status; 68542050f0ccSAndy Adamson 6855bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68562050f0ccSAndy Adamson if (!status) 6857bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 68582050f0ccSAndy Adamson if (!status) 6859bf269551SChuck Lever status = decode_putrootfh(xdr); 68602050f0ccSAndy Adamson if (!status) 6861bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 68622050f0ccSAndy Adamson return status; 68632050f0ccSAndy Adamson } 686418019753SRicardo Labiaga 686518019753SRicardo Labiaga /* 686618019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 686718019753SRicardo Labiaga */ 6868bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6869bf269551SChuck Lever struct xdr_stream *xdr, 687018019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 687118019753SRicardo Labiaga { 687218019753SRicardo Labiaga struct compound_hdr hdr; 687318019753SRicardo Labiaga int status; 687418019753SRicardo Labiaga 6875bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 687618019753SRicardo Labiaga if (!status) 6877bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 687818019753SRicardo Labiaga if (!status) 6879bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 688018019753SRicardo Labiaga return status; 688118019753SRicardo Labiaga } 6882b1f69b75SAndy Adamson 6883b1f69b75SAndy Adamson /* 68847f11d8d3SAndy Adamson * Decode GETDEVICELIST response 68857f11d8d3SAndy Adamson */ 68867f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 68877f11d8d3SAndy Adamson struct xdr_stream *xdr, 68887f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 68897f11d8d3SAndy Adamson { 68907f11d8d3SAndy Adamson struct compound_hdr hdr; 68917f11d8d3SAndy Adamson int status; 68927f11d8d3SAndy Adamson 68937f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 68947f11d8d3SAndy Adamson 68957f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 68967f11d8d3SAndy Adamson if (status != 0) 68977f11d8d3SAndy Adamson goto out; 68987f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 68997f11d8d3SAndy Adamson if (status != 0) 69007f11d8d3SAndy Adamson goto out; 69017f11d8d3SAndy Adamson status = decode_putfh(xdr); 69027f11d8d3SAndy Adamson if (status != 0) 69037f11d8d3SAndy Adamson goto out; 69047f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 69057f11d8d3SAndy Adamson out: 69067f11d8d3SAndy Adamson return status; 69077f11d8d3SAndy Adamson } 69087f11d8d3SAndy Adamson 69097f11d8d3SAndy Adamson /* 6910b1f69b75SAndy Adamson * Decode GETDEVINFO response 6911b1f69b75SAndy Adamson */ 6912bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6913bf269551SChuck Lever struct xdr_stream *xdr, 6914b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6915b1f69b75SAndy Adamson { 6916b1f69b75SAndy Adamson struct compound_hdr hdr; 6917b1f69b75SAndy Adamson int status; 6918b1f69b75SAndy Adamson 6919bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6920b1f69b75SAndy Adamson if (status != 0) 6921b1f69b75SAndy Adamson goto out; 6922bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6923b1f69b75SAndy Adamson if (status != 0) 6924b1f69b75SAndy Adamson goto out; 6925bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6926b1f69b75SAndy Adamson out: 6927b1f69b75SAndy Adamson return status; 6928b1f69b75SAndy Adamson } 6929b1f69b75SAndy Adamson 6930b1f69b75SAndy Adamson /* 6931b1f69b75SAndy Adamson * Decode LAYOUTGET response 6932b1f69b75SAndy Adamson */ 6933bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6934bf269551SChuck Lever struct xdr_stream *xdr, 6935b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6936b1f69b75SAndy Adamson { 6937b1f69b75SAndy Adamson struct compound_hdr hdr; 6938b1f69b75SAndy Adamson int status; 6939b1f69b75SAndy Adamson 6940bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6941b1f69b75SAndy Adamson if (status) 6942b1f69b75SAndy Adamson goto out; 6943bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6944b1f69b75SAndy Adamson if (status) 6945b1f69b75SAndy Adamson goto out; 6946bf269551SChuck Lever status = decode_putfh(xdr); 6947b1f69b75SAndy Adamson if (status) 6948b1f69b75SAndy Adamson goto out; 6949bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6950b1f69b75SAndy Adamson out: 6951b1f69b75SAndy Adamson return status; 6952b1f69b75SAndy Adamson } 6953863a3c6cSAndy Adamson 6954863a3c6cSAndy Adamson /* 6955cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6956cbe82603SBenny Halevy */ 6957cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6958cbe82603SBenny Halevy struct xdr_stream *xdr, 6959cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6960cbe82603SBenny Halevy { 6961cbe82603SBenny Halevy struct compound_hdr hdr; 6962cbe82603SBenny Halevy int status; 6963cbe82603SBenny Halevy 6964cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6965cbe82603SBenny Halevy if (status) 6966cbe82603SBenny Halevy goto out; 6967cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6968cbe82603SBenny Halevy if (status) 6969cbe82603SBenny Halevy goto out; 6970cbe82603SBenny Halevy status = decode_putfh(xdr); 6971cbe82603SBenny Halevy if (status) 6972cbe82603SBenny Halevy goto out; 6973cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6974cbe82603SBenny Halevy out: 6975cbe82603SBenny Halevy return status; 6976cbe82603SBenny Halevy } 6977cbe82603SBenny Halevy 6978cbe82603SBenny Halevy /* 6979863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6980863a3c6cSAndy Adamson */ 6981863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6982863a3c6cSAndy Adamson struct xdr_stream *xdr, 6983863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6984863a3c6cSAndy Adamson { 6985863a3c6cSAndy Adamson struct compound_hdr hdr; 6986863a3c6cSAndy Adamson int status; 6987863a3c6cSAndy Adamson 6988863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6989863a3c6cSAndy Adamson if (status) 6990863a3c6cSAndy Adamson goto out; 6991863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6992863a3c6cSAndy Adamson if (status) 6993863a3c6cSAndy Adamson goto out; 6994863a3c6cSAndy Adamson status = decode_putfh(xdr); 6995863a3c6cSAndy Adamson if (status) 6996863a3c6cSAndy Adamson goto out; 6997863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6998863a3c6cSAndy Adamson if (status) 6999863a3c6cSAndy Adamson goto out; 70006926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 7001863a3c6cSAndy Adamson out: 7002863a3c6cSAndy Adamson return status; 7003863a3c6cSAndy Adamson } 7004fca78d6dSBryan Schumaker 7005fca78d6dSBryan Schumaker /* 7006fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7007fca78d6dSBryan Schumaker */ 7008fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7009fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7010fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 7011fca78d6dSBryan Schumaker { 7012fca78d6dSBryan Schumaker struct compound_hdr hdr; 7013fca78d6dSBryan Schumaker int status; 7014fca78d6dSBryan Schumaker 7015fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7016fca78d6dSBryan Schumaker if (status) 7017fca78d6dSBryan Schumaker goto out; 7018fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7019fca78d6dSBryan Schumaker if (status) 7020fca78d6dSBryan Schumaker goto out; 7021fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7022fca78d6dSBryan Schumaker if (status) 7023fca78d6dSBryan Schumaker goto out; 702431e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7025fca78d6dSBryan Schumaker out: 7026fca78d6dSBryan Schumaker return status; 7027fca78d6dSBryan Schumaker } 70287d974794SBryan Schumaker 70297d974794SBryan Schumaker /* 70307d974794SBryan Schumaker * Decode TEST_STATEID response 70317d974794SBryan Schumaker */ 70327d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 70337d974794SBryan Schumaker struct xdr_stream *xdr, 70347d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 70357d974794SBryan Schumaker { 70367d974794SBryan Schumaker struct compound_hdr hdr; 70377d974794SBryan Schumaker int status; 70387d974794SBryan Schumaker 70397d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70407d974794SBryan Schumaker if (status) 70417d974794SBryan Schumaker goto out; 70427d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70437d974794SBryan Schumaker if (status) 70447d974794SBryan Schumaker goto out; 70457d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 70467d974794SBryan Schumaker out: 70477d974794SBryan Schumaker return status; 70487d974794SBryan Schumaker } 70499aeda35fSBryan Schumaker 70509aeda35fSBryan Schumaker /* 70519aeda35fSBryan Schumaker * Decode FREE_STATEID response 70529aeda35fSBryan Schumaker */ 70539aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 70549aeda35fSBryan Schumaker struct xdr_stream *xdr, 70559aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 70569aeda35fSBryan Schumaker { 70579aeda35fSBryan Schumaker struct compound_hdr hdr; 70589aeda35fSBryan Schumaker int status; 70599aeda35fSBryan Schumaker 70609aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70619aeda35fSBryan Schumaker if (status) 70629aeda35fSBryan Schumaker goto out; 70639aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70649aeda35fSBryan Schumaker if (status) 70659aeda35fSBryan Schumaker goto out; 70669aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 70679aeda35fSBryan Schumaker out: 70689aeda35fSBryan Schumaker return status; 70699aeda35fSBryan Schumaker } 707099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 707199fe60d0SBenny Halevy 7072573c4e1eSChuck Lever /** 7073573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7074573c4e1eSChuck Lever * the local page cache. 7075573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7076573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7077573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7078573c4e1eSChuck Lever * 7079573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7080573c4e1eSChuck Lever * returned. 7081573c4e1eSChuck Lever * 7082573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7083573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7084573c4e1eSChuck Lever * on a directory already in our cache. 7085573c4e1eSChuck Lever */ 7086573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7087573c4e1eSChuck Lever int plus) 70881da177e4SLinus Torvalds { 7089256e48bbSTrond Myklebust unsigned int savep; 7090dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 70911da177e4SLinus Torvalds uint32_t len; 7092babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7093babddc72SBryan Schumaker if (unlikely(!p)) 7094babddc72SBryan Schumaker goto out_overflow; 7095c08e76d0SChuck Lever if (*p == xdr_zero) { 7096babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7097babddc72SBryan Schumaker if (unlikely(!p)) 7098babddc72SBryan Schumaker goto out_overflow; 7099c08e76d0SChuck Lever if (*p == xdr_zero) 7100573c4e1eSChuck Lever return -EAGAIN; 71011da177e4SLinus Torvalds entry->eof = 1; 7102573c4e1eSChuck Lever return -EBADCOOKIE; 71031da177e4SLinus Torvalds } 71041da177e4SLinus Torvalds 7105babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7106babddc72SBryan Schumaker if (unlikely(!p)) 7107babddc72SBryan Schumaker goto out_overflow; 71081da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 71091da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7110c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7111babddc72SBryan Schumaker 71129af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7113babddc72SBryan Schumaker if (unlikely(!p)) 7114babddc72SBryan Schumaker goto out_overflow; 71151da177e4SLinus Torvalds entry->name = (const char *) p; 71161da177e4SLinus Torvalds 71171da177e4SLinus Torvalds /* 71181da177e4SLinus Torvalds * In case the server doesn't return an inode number, 71191da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 71201da177e4SLinus Torvalds * since glibc seems to choke on it...) 71211da177e4SLinus Torvalds */ 71221da177e4SLinus Torvalds entry->ino = 1; 71234f082222STrond Myklebust entry->fattr->valid = 0; 71241da177e4SLinus Torvalds 71259af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7126babddc72SBryan Schumaker goto out_overflow; 71279af8c222STrond Myklebust 7128256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7129babddc72SBryan Schumaker goto out_overflow; 71309af8c222STrond Myklebust 7131573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 71328b7e3f49STrond Myklebust NULL, entry->server) < 0) 7133babddc72SBryan Schumaker goto out_overflow; 713428331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 713528331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 713628331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 713782f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 71389af8c222STrond Myklebust 71390b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 71400b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 71410b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 71420b26a0bfSTrond Myklebust 7143573c4e1eSChuck Lever return 0; 7144babddc72SBryan Schumaker 7145babddc72SBryan Schumaker out_overflow: 7146babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7147573c4e1eSChuck Lever return -EAGAIN; 71481da177e4SLinus Torvalds } 71491da177e4SLinus Torvalds 71501da177e4SLinus Torvalds /* 71511da177e4SLinus Torvalds * We need to translate between nfs status return values and 71521da177e4SLinus Torvalds * the local errno values which may not be the same. 71531da177e4SLinus Torvalds */ 71541da177e4SLinus Torvalds static struct { 71551da177e4SLinus Torvalds int stat; 71561da177e4SLinus Torvalds int errno; 71571da177e4SLinus Torvalds } nfs_errtbl[] = { 71581da177e4SLinus Torvalds { NFS4_OK, 0 }, 7159856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7160856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7161856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7162856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7163856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7164856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7165856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7166856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7167856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7168856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7169856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7170856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7171856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7172856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7173856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7174856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7175856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7176856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7177856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7178856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7179856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7180856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7181fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7182856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7183856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7184856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7185856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7186856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7187856dff3dSBenny Halevy { -1, -EIO } 71881da177e4SLinus Torvalds }; 71891da177e4SLinus Torvalds 71901da177e4SLinus Torvalds /* 71911da177e4SLinus Torvalds * Convert an NFS error code to a local one. 71921da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 71931da177e4SLinus Torvalds */ 71941da177e4SLinus Torvalds static int 71950a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 71961da177e4SLinus Torvalds { 71971da177e4SLinus Torvalds int i; 71981da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 71991da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 72001da177e4SLinus Torvalds return nfs_errtbl[i].errno; 72011da177e4SLinus Torvalds } 72021da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 72031da177e4SLinus Torvalds /* The server is looney tunes. */ 7204fdcb4577STrond Myklebust return -EREMOTEIO; 72051da177e4SLinus Torvalds } 72061da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 72071da177e4SLinus Torvalds * handle it. 72081da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 72091da177e4SLinus Torvalds * not conflict with native Linux error codes. 72101da177e4SLinus Torvalds */ 7211856dff3dSBenny Halevy return -stat; 72121da177e4SLinus Torvalds } 72131da177e4SLinus Torvalds 72141da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 72151da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 72161da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 72179f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7218bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 72192bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 72202bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7221cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7222cc0175c1SChuck Lever .p_name = #proc, \ 72231da177e4SLinus Torvalds } 72241da177e4SLinus Torvalds 72251da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 72261da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 72271da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 72281da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 72291da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 72301da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 72311da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 72321da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 72331da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 72341da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 72351da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 72361da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 72371da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 72381da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 72391da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 72401da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 72411da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 72421da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 72431da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 72441da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 72451da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 72461da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 72471da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 72481da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 72491da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 72501da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 72511da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 72521da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 72531da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 72541da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 72551da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 72561da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7257029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 725823ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7259683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7260d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 72615a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 726299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 726399fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7264fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 72650f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7266fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 72672050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 726818019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7269b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7270b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7271863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7272cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7273fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 72747d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 72759aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 72767f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 7277ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7278ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 727966245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 728099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 72811da177e4SLinus Torvalds }; 72821da177e4SLinus Torvalds 7283a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 72841da177e4SLinus Torvalds .number = 4, 7285e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 72861da177e4SLinus Torvalds .procs = nfs4_procedures 72871da177e4SLinus Torvalds }; 72881da177e4SLinus Torvalds 72891da177e4SLinus Torvalds /* 72901da177e4SLinus Torvalds * Local variables: 72911da177e4SLinus Torvalds * c-basic-offset: 8 72921da177e4SLinus Torvalds * End: 72931da177e4SLinus Torvalds */ 7294