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" 5976e697baSTrond Myklebust #include "nfs4session.h" 60b1f69b75SAndy Adamson #include "pnfs.h" 61f092075dSChuck Lever #include "netns.h" 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 641da177e4SLinus Torvalds 651da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 661da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 671da177e4SLinus Torvalds 680a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 711da177e4SLinus Torvalds #ifdef DEBUG 721da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 731da177e4SLinus Torvalds #else 741da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 751da177e4SLinus Torvalds #endif 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds /* lock,open owner id: 789f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 791da177e4SLinus Torvalds */ 8095b72eb0STrond Myklebust #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) 81d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 829104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 831da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 841da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 851da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 861da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 879104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 889104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 899104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 909104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 911da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 921da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 931da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 941da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 951da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 961da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 971da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 981da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 99e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 10096928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 1011da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 1021da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 103bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 104bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 10588034c3dSAndy Adamson /* We support only one layout type per file system */ 10688034c3dSAndy Adamson #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) 10796928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 10896928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 10988034c3dSAndy Adamson 3 + 3 + 3 + nfs4_owner_maxsz + \ 11088034c3dSAndy Adamson nfs4_group_maxsz + decode_mdsthreshold_maxsz)) 11196928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 11296928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 11396928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1149104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1159104a55dSTrond Myklebust 1 + 2 + 1 + \ 1169104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1179104a55dSTrond Myklebust nfs4_group_maxsz + \ 1189104a55dSTrond Myklebust 4 + 4) 1191da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1201da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 12156ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 12256ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1232f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 124dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 125dae100c2SFred Isaman * layout types will be returned. 126dae100c2SFred Isaman */ 127dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 128dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1291da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1301da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1311da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1321da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 133cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 134cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 135cc38bac3SChuck Lever 1 /* sc_prog */ + \ 136cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 137cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 138cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1391da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1401da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1411da177e4SLinus Torvalds 2 + \ 1421da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1431da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1441da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1451da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1461da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1471da177e4SLinus Torvalds (op_decode_hdr_maxsz) 148e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 149e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1502cebf828STrond Myklebust #define encode_share_access_maxsz \ 1512cebf828STrond Myklebust (2) 1524882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1532cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1542cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1552cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1562cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1572cebf828STrond Myklebust open_owner_id_maxsz + \ 1582cebf828STrond Myklebust encode_opentype_maxsz + \ 1592cebf828STrond Myklebust encode_claim_null_maxsz) 1602cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1619104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1622cebf828STrond Myklebust decode_ace_maxsz) 1632cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1642cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1659104a55dSTrond Myklebust decode_stateid_maxsz + \ 1662cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1672cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1682cebf828STrond Myklebust decode_delegation_maxsz) 1699104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1709104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1719104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1729104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1739104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1749104a55dSTrond Myklebust decode_stateid_maxsz) 1759104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1769104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1779104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1789104a55dSTrond Myklebust encode_share_access_maxsz) 1799104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1809104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1819104a55dSTrond Myklebust decode_stateid_maxsz) 1829104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1839104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1849104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1859104a55dSTrond Myklebust decode_stateid_maxsz) 1869104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1879104a55dSTrond Myklebust encode_stateid_maxsz + \ 1889104a55dSTrond Myklebust encode_attrs_maxsz) 1899104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1909104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1919104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1929104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1939104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1949104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1959104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1969104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1979104a55dSTrond Myklebust decode_verifier_maxsz) 1989104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1999104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 2009104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2019104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2029104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2039104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2049104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2059104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2069104a55dSTrond Myklebust decode_verifier_maxsz) 2071da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2081da177e4SLinus Torvalds nfs4_name_maxsz) 2096ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2106ce18391SBenny Halevy decode_change_info_maxsz) 2111da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2121da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2136ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2146ce18391SBenny Halevy decode_change_info_maxsz + \ 2156ce18391SBenny Halevy decode_change_info_maxsz) 2161da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2171da177e4SLinus Torvalds nfs4_name_maxsz) 2186ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 219daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2209104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2219104a55dSTrond Myklebust 7 + \ 222daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 223daccbdedSTrond Myklebust encode_lockowner_maxsz) 2249104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2259104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2269104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2279104a55dSTrond Myklebust decode_lock_denied_maxsz) 228daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 229daccbdedSTrond Myklebust encode_lockowner_maxsz) 2309104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2319104a55dSTrond Myklebust decode_lock_denied_maxsz) 2329104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2339104a55dSTrond Myklebust encode_stateid_maxsz + \ 2349104a55dSTrond Myklebust 4) 2359104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2369104a55dSTrond Myklebust decode_stateid_maxsz) 237d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 238d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 239d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 240d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 241d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2429104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2439104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2441da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2451da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 24694a6d753SChuck Lever 1 + \ 24796928206SJ. Bruce Fields nfs4_fattr_maxsz) 2481da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2491da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2509104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2519104a55dSTrond Myklebust encode_attrs_maxsz) 2522cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2532cebf828STrond Myklebust decode_change_info_maxsz + \ 2542cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2559104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2569104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2571da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2581da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2599104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2609104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2619104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2629104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2639104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2649104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 265e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 266e6889620STrond Myklebust (encode_getattr_maxsz) 267e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 268e6889620STrond Myklebust (0) 2695a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2701650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2719b7b9fccSAndy Adamson 2729b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 273fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 274d751f748SJim Rees #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ 275d751f748SJim Rees sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) 276fc931582SAndy Adamson 27799fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 27899fe60d0SBenny Halevy encode_verifier_maxsz + \ 27999fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 28099fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 28199fe60d0SBenny Halevy 1 /* flags */ + \ 28299fe60d0SBenny Halevy 1 /* spa_how */ + \ 28399fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 284db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 285db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 286db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 287db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 288d751f748SJim Rees XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 289db8ac8baSWeston Andros Adamson 3 /* nii_date */) 29099fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 29199fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 29299fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 29399fe60d0SBenny Halevy 1 /* eir_flags */ + \ 29499fe60d0SBenny Halevy 1 /* spr_how */ + \ 29599fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 29699fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 29799fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 29899fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 29999fe60d0SBenny Halevy /* eir_server_scope<> */ \ 30099fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 30199fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 3027d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3037d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3047d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3057d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3067d2ed9acSWeston Andros Adamson 3 /* nii_date */) 307fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 308fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 309fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 310fc931582SAndy Adamson 1 /* ca_rdma_ird */) 311fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 312fc931582SAndy Adamson 2 /* csa_clientid */ + \ 313fc931582SAndy Adamson 1 /* csa_sequence */ + \ 314fc931582SAndy Adamson 1 /* csa_flags */ + \ 315fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 316fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 317fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 318fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 319fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 320fc931582SAndy Adamson 1 /* stamp */ + \ 321fc931582SAndy Adamson 1 /* machinename.len */ + \ 322fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 323fc931582SAndy Adamson 1 /* uid */ + \ 324fc931582SAndy Adamson 1 /* gid */ + \ 325fc931582SAndy Adamson 1 /* gids.len (0) */) 326fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 327fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 328fc931582SAndy Adamson 1 /* csr_sequence */ + \ 329fc931582SAndy Adamson 1 /* csr_flags */ + \ 330fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 331fc931582SAndy Adamson decode_channel_attrs_maxsz) 3327c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3337c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3347c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3357c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3367c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3377c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3387c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3397c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3407c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3417c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3420f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3430f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 34466245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 34566245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 346fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 347fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 348fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 349fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 35018019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 35118019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3527f11d8d3SAndy Adamson #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ 3537f11d8d3SAndy Adamson encode_verifier_maxsz) 3547f11d8d3SAndy Adamson #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ 3557f11d8d3SAndy Adamson 2 /* nfs_cookie4 gdlr_cookie */ + \ 3567f11d8d3SAndy Adamson decode_verifier_maxsz \ 3577f11d8d3SAndy Adamson /* verifier4 gdlr_verifier */ + \ 3587f11d8d3SAndy Adamson 1 /* gdlr_deviceid_list count */ + \ 3597f11d8d3SAndy Adamson XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ 3607f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE) \ 3617f11d8d3SAndy Adamson /* gdlr_deviceid_list */ + \ 3627f11d8d3SAndy Adamson 1 /* bool gdlr_eof */) 363b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 364b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 365b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 366b1f69b75SAndy Adamson 1 /* layout type */ + \ 367b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 368b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 369b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 370b1f69b75SAndy Adamson 1 /* notification bitmap */) 371b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 372b1f69b75SAndy Adamson encode_stateid_maxsz) 373b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 374b1f69b75SAndy Adamson decode_stateid_maxsz + \ 375b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 376863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 377863a3c6cSAndy Adamson 2 /* offset */ + \ 378863a3c6cSAndy Adamson 2 /* length */ + \ 379863a3c6cSAndy Adamson 1 /* reclaim */ + \ 380863a3c6cSAndy Adamson encode_stateid_maxsz + \ 381863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 382863a3c6cSAndy Adamson 2 /* last byte written */ + \ 383863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 384863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 385863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 386863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 387cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 388cbe82603SBenny Halevy encode_stateid_maxsz + \ 389cbe82603SBenny Halevy 1 /* FIXME: opaque lrf_body always empty at the moment */) 390cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 391cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 392fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 393fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 3947d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 3957d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3967d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 3979aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 3989aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3999aeda35fSBryan Schumaker #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1) 4009b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 4019b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 4029b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 4039b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4049b7b9fccSAndy Adamson 4051da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4061da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4071da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4089b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4091da177e4SLinus Torvalds encode_putfh_maxsz + \ 4109104a55dSTrond Myklebust encode_read_maxsz) 4111da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4129b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4131da177e4SLinus Torvalds decode_putfh_maxsz + \ 4149104a55dSTrond Myklebust decode_read_maxsz) 4151da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4171da177e4SLinus Torvalds encode_putfh_maxsz + \ 4189104a55dSTrond Myklebust encode_readlink_maxsz) 4191da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4209b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4211da177e4SLinus Torvalds decode_putfh_maxsz + \ 4229104a55dSTrond Myklebust decode_readlink_maxsz) 4231da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4249b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4251da177e4SLinus Torvalds encode_putfh_maxsz + \ 4269104a55dSTrond Myklebust encode_readdir_maxsz) 4271da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4289b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4291da177e4SLinus Torvalds decode_putfh_maxsz + \ 4309104a55dSTrond Myklebust decode_readdir_maxsz) 4311da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4329b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4331da177e4SLinus Torvalds encode_putfh_maxsz + \ 4349104a55dSTrond Myklebust encode_write_maxsz + \ 4354f9838c7STrond Myklebust encode_getattr_maxsz) 4361da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4381da177e4SLinus Torvalds decode_putfh_maxsz + \ 4399104a55dSTrond Myklebust decode_write_maxsz + \ 4404f9838c7STrond Myklebust decode_getattr_maxsz) 4411da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4429b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4431da177e4SLinus Torvalds encode_putfh_maxsz + \ 4448582715eSTrond Myklebust encode_commit_maxsz) 4451da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4469b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4471da177e4SLinus Torvalds decode_putfh_maxsz + \ 4488582715eSTrond Myklebust decode_commit_maxsz) 4491da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4509b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4511da177e4SLinus Torvalds encode_putfh_maxsz + \ 4522cebf828STrond Myklebust encode_open_maxsz + \ 4536168f62cSWeston Andros Adamson encode_access_maxsz + \ 4542cebf828STrond Myklebust encode_getfh_maxsz + \ 4552cebf828STrond Myklebust encode_getattr_maxsz) 4561da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4581da177e4SLinus Torvalds decode_putfh_maxsz + \ 4592cebf828STrond Myklebust decode_open_maxsz + \ 4606168f62cSWeston Andros Adamson decode_access_maxsz + \ 4612cebf828STrond Myklebust decode_getfh_maxsz + \ 4622cebf828STrond Myklebust decode_getattr_maxsz) 4631da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4641da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4651da177e4SLinus Torvalds encode_putfh_maxsz + \ 4669104a55dSTrond Myklebust encode_open_confirm_maxsz) 4679104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4689104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4691da177e4SLinus Torvalds decode_putfh_maxsz + \ 4709104a55dSTrond Myklebust decode_open_confirm_maxsz) 4711da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4729b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4731da177e4SLinus Torvalds encode_putfh_maxsz + \ 4742cebf828STrond Myklebust encode_open_maxsz + \ 4756168f62cSWeston Andros Adamson encode_access_maxsz + \ 4762cebf828STrond Myklebust encode_getattr_maxsz) 4771da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4789b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4791da177e4SLinus Torvalds decode_putfh_maxsz + \ 4802cebf828STrond Myklebust decode_open_maxsz + \ 4816168f62cSWeston Andros Adamson decode_access_maxsz + \ 4822cebf828STrond Myklebust decode_getattr_maxsz) 4831da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4841da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4861da177e4SLinus Torvalds encode_putfh_maxsz + \ 4879104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 488516a6af6STrond Myklebust encode_getattr_maxsz) 4891da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4901da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4921da177e4SLinus Torvalds decode_putfh_maxsz + \ 4939104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 494516a6af6STrond Myklebust decode_getattr_maxsz) 4951da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4969b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4971da177e4SLinus Torvalds encode_putfh_maxsz + \ 4989104a55dSTrond Myklebust encode_close_maxsz + \ 499516a6af6STrond Myklebust encode_getattr_maxsz) 5001da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 5019b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5021da177e4SLinus Torvalds decode_putfh_maxsz + \ 5039104a55dSTrond Myklebust decode_close_maxsz + \ 504516a6af6STrond Myklebust decode_getattr_maxsz) 5051da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5069b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5071da177e4SLinus Torvalds encode_putfh_maxsz + \ 5089104a55dSTrond Myklebust encode_setattr_maxsz + \ 5091da177e4SLinus Torvalds encode_getattr_maxsz) 5101da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5119b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5121da177e4SLinus Torvalds decode_putfh_maxsz + \ 5139104a55dSTrond Myklebust decode_setattr_maxsz + \ 5149104a55dSTrond Myklebust decode_getattr_maxsz) 5151da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5171da177e4SLinus Torvalds encode_putfh_maxsz + \ 5181da177e4SLinus Torvalds encode_fsinfo_maxsz) 5191da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5209b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5211da177e4SLinus Torvalds decode_putfh_maxsz + \ 5221da177e4SLinus Torvalds decode_fsinfo_maxsz) 5231da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5241da177e4SLinus Torvalds encode_renew_maxsz) 5251da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5261da177e4SLinus Torvalds decode_renew_maxsz) 5271da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5281da177e4SLinus Torvalds encode_setclientid_maxsz) 5291da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5301da177e4SLinus Torvalds decode_setclientid_maxsz) 5311da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5321da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5331da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 5341da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5351da177e4SLinus Torvalds encode_fsinfo_maxsz) 5361da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5371da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5381da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 5391da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5401da177e4SLinus Torvalds decode_fsinfo_maxsz) 5411da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5429b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5431da177e4SLinus Torvalds encode_putfh_maxsz + \ 5449104a55dSTrond Myklebust encode_lock_maxsz) 5451da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5469b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5471da177e4SLinus Torvalds decode_putfh_maxsz + \ 5489104a55dSTrond Myklebust decode_lock_maxsz) 5491da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5509b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5511da177e4SLinus Torvalds encode_putfh_maxsz + \ 5529104a55dSTrond Myklebust encode_lockt_maxsz) 5539104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5549b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5559104a55dSTrond Myklebust decode_putfh_maxsz + \ 5569104a55dSTrond Myklebust decode_lockt_maxsz) 5571da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5589b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5591da177e4SLinus Torvalds encode_putfh_maxsz + \ 5609104a55dSTrond Myklebust encode_locku_maxsz) 5611da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5629b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5631da177e4SLinus Torvalds decode_putfh_maxsz + \ 5649104a55dSTrond Myklebust decode_locku_maxsz) 565d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 566d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 567d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 568d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 569d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 570d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5711da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5729b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5731da177e4SLinus Torvalds encode_putfh_maxsz + \ 57476b32999STrond Myklebust encode_access_maxsz + \ 57576b32999STrond Myklebust encode_getattr_maxsz) 5761da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5781da177e4SLinus Torvalds decode_putfh_maxsz + \ 57976b32999STrond Myklebust decode_access_maxsz + \ 58076b32999STrond Myklebust decode_getattr_maxsz) 5811da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5829b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5831da177e4SLinus Torvalds encode_putfh_maxsz + \ 5841da177e4SLinus Torvalds encode_getattr_maxsz) 5851da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5869b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5871da177e4SLinus Torvalds decode_putfh_maxsz + \ 5881da177e4SLinus Torvalds decode_getattr_maxsz) 5891da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5909b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5911da177e4SLinus Torvalds encode_putfh_maxsz + \ 5921da177e4SLinus Torvalds encode_lookup_maxsz + \ 5931da177e4SLinus Torvalds encode_getattr_maxsz + \ 5941da177e4SLinus Torvalds encode_getfh_maxsz) 5951da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5971da177e4SLinus Torvalds decode_putfh_maxsz + \ 598e6889620STrond Myklebust decode_lookup_maxsz + \ 5991da177e4SLinus Torvalds decode_getattr_maxsz + \ 6001da177e4SLinus Torvalds decode_getfh_maxsz) 6011da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 6029b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6031da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6041da177e4SLinus Torvalds encode_getattr_maxsz + \ 6051da177e4SLinus Torvalds encode_getfh_maxsz) 6061da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6079b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6081da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6091da177e4SLinus Torvalds decode_getattr_maxsz + \ 6101da177e4SLinus Torvalds decode_getfh_maxsz) 6111da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6129b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6131da177e4SLinus Torvalds encode_putfh_maxsz + \ 614778d2817STrond Myklebust encode_remove_maxsz) 6151da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6171da177e4SLinus Torvalds decode_putfh_maxsz + \ 618778d2817STrond Myklebust decode_remove_maxsz) 6191da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6209b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6211da177e4SLinus Torvalds encode_putfh_maxsz + \ 6221da177e4SLinus Torvalds encode_savefh_maxsz + \ 6231da177e4SLinus Torvalds encode_putfh_maxsz + \ 624778d2817STrond Myklebust encode_rename_maxsz) 6251da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6269b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6271da177e4SLinus Torvalds decode_putfh_maxsz + \ 6281da177e4SLinus Torvalds decode_savefh_maxsz + \ 6291da177e4SLinus Torvalds decode_putfh_maxsz + \ 630778d2817STrond Myklebust decode_rename_maxsz) 6311da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6329b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6331da177e4SLinus Torvalds encode_putfh_maxsz + \ 6341da177e4SLinus Torvalds encode_savefh_maxsz + \ 6351da177e4SLinus Torvalds encode_putfh_maxsz + \ 63691ba2eeeSTrond Myklebust encode_link_maxsz + \ 63791ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 638a9f6991bSTrond Myklebust encode_getattr_maxsz) 6391da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6409b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6411da177e4SLinus Torvalds decode_putfh_maxsz + \ 6421da177e4SLinus Torvalds decode_savefh_maxsz + \ 6431da177e4SLinus Torvalds decode_putfh_maxsz + \ 64491ba2eeeSTrond Myklebust decode_link_maxsz + \ 64591ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 64691ba2eeeSTrond Myklebust decode_getattr_maxsz) 6471da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6489b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6491da177e4SLinus Torvalds encode_putfh_maxsz + \ 6501da177e4SLinus Torvalds encode_symlink_maxsz + \ 6511da177e4SLinus Torvalds encode_getattr_maxsz + \ 6521da177e4SLinus Torvalds encode_getfh_maxsz) 6531da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6549b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6551da177e4SLinus Torvalds decode_putfh_maxsz + \ 6561da177e4SLinus Torvalds decode_symlink_maxsz + \ 6571da177e4SLinus Torvalds decode_getattr_maxsz + \ 6581da177e4SLinus Torvalds decode_getfh_maxsz) 6591da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6609b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6611da177e4SLinus Torvalds encode_putfh_maxsz + \ 6621da177e4SLinus Torvalds encode_create_maxsz + \ 66356ae19f3STrond Myklebust encode_getfh_maxsz + \ 66456ae19f3STrond Myklebust encode_getattr_maxsz) 6651da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6669b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6671da177e4SLinus Torvalds decode_putfh_maxsz + \ 6681da177e4SLinus Torvalds decode_create_maxsz + \ 66956ae19f3STrond Myklebust decode_getfh_maxsz + \ 67056ae19f3STrond Myklebust decode_getattr_maxsz) 6711da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6729b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6731da177e4SLinus Torvalds encode_putfh_maxsz + \ 6741da177e4SLinus Torvalds encode_getattr_maxsz) 6751da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6769b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6771da177e4SLinus Torvalds decode_putfh_maxsz + \ 6781da177e4SLinus Torvalds decode_getattr_maxsz) 6791da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6809b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6811da177e4SLinus Torvalds encode_putfh_maxsz + \ 6829104a55dSTrond Myklebust encode_statfs_maxsz) 6831da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6849b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6851da177e4SLinus Torvalds decode_putfh_maxsz + \ 6869104a55dSTrond Myklebust decode_statfs_maxsz) 6871da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6889b7b9fccSAndy Adamson encode_sequence_maxsz + \ 689ab91f264STrond Myklebust encode_putfh_maxsz + \ 6901da177e4SLinus Torvalds encode_getattr_maxsz) 6911da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6929b7b9fccSAndy Adamson decode_sequence_maxsz + \ 693ab91f264STrond Myklebust decode_putfh_maxsz + \ 6941da177e4SLinus Torvalds decode_getattr_maxsz) 6951da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6969b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6971da177e4SLinus Torvalds encode_putfh_maxsz + \ 698fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 699fa178f29STrond Myklebust encode_getattr_maxsz) 7001da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7019b7b9fccSAndy Adamson decode_sequence_maxsz + \ 702fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 703fa178f29STrond Myklebust decode_getattr_maxsz) 704029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 706029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7079104a55dSTrond Myklebust encode_getacl_maxsz) 708029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 710029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7119104a55dSTrond Myklebust decode_getacl_maxsz) 71223ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 71423ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7159104a55dSTrond Myklebust encode_setacl_maxsz) 71623ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 71823ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7199104a55dSTrond Myklebust decode_setacl_maxsz) 720683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 721683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 723683b57b4STrond Myklebust encode_putfh_maxsz + \ 724e6889620STrond Myklebust encode_lookup_maxsz + \ 725e6889620STrond Myklebust encode_fs_locations_maxsz) 726683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 727683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7289b7b9fccSAndy Adamson decode_sequence_maxsz + \ 729683b57b4STrond Myklebust decode_putfh_maxsz + \ 730e6889620STrond Myklebust decode_lookup_maxsz + \ 731e6889620STrond Myklebust decode_fs_locations_maxsz) 7325a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7335a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7345a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7355a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7365a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7375a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7385a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7395a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 74099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7417c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7427c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7437c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7447c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7457c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7467c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 74799fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 74899fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 74999fe60d0SBenny Halevy encode_exchange_id_maxsz) 75099fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 75199fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 75299fe60d0SBenny Halevy decode_exchange_id_maxsz) 753fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 754fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 755fc931582SAndy Adamson encode_create_session_maxsz) 756fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 757fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 758fc931582SAndy Adamson decode_create_session_maxsz) 7590f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7600f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7610f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7620f3e66c6SAndy Adamson decode_destroy_session_maxsz) 76366245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 76466245539STrond Myklebust encode_destroy_clientid_maxsz) 76566245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 76666245539STrond Myklebust decode_destroy_clientid_maxsz) 767fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 768fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 769fc01cea9SAndy Adamson encode_sequence_maxsz) 770fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 771fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 772fc01cea9SAndy Adamson decode_sequence_maxsz) 7732050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7742050f0ccSAndy Adamson encode_sequence_maxsz + \ 7752050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7762050f0ccSAndy Adamson encode_fsinfo_maxsz) 7772050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7782050f0ccSAndy Adamson decode_sequence_maxsz + \ 7792050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7802050f0ccSAndy Adamson decode_fsinfo_maxsz) 78118019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 78218019753SRicardo Labiaga encode_sequence_maxsz + \ 78318019753SRicardo Labiaga encode_reclaim_complete_maxsz) 78418019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 78518019753SRicardo Labiaga decode_sequence_maxsz + \ 78618019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7877f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 7887f11d8d3SAndy Adamson encode_sequence_maxsz + \ 7897f11d8d3SAndy Adamson encode_putfh_maxsz + \ 7907f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 7917f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 7927f11d8d3SAndy Adamson decode_sequence_maxsz + \ 7937f11d8d3SAndy Adamson decode_putfh_maxsz + \ 7947f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 795b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 796b1f69b75SAndy Adamson encode_sequence_maxsz +\ 797b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 798b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 799b1f69b75SAndy Adamson decode_sequence_maxsz + \ 800b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 801b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 802b1f69b75SAndy Adamson encode_sequence_maxsz + \ 803b1f69b75SAndy Adamson encode_putfh_maxsz + \ 804b1f69b75SAndy Adamson encode_layoutget_maxsz) 805b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 806b1f69b75SAndy Adamson decode_sequence_maxsz + \ 807b1f69b75SAndy Adamson decode_putfh_maxsz + \ 808b1f69b75SAndy Adamson decode_layoutget_maxsz) 809863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 810863a3c6cSAndy Adamson encode_sequence_maxsz +\ 811863a3c6cSAndy Adamson encode_putfh_maxsz + \ 812863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 813863a3c6cSAndy Adamson encode_getattr_maxsz) 814863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 815863a3c6cSAndy Adamson decode_sequence_maxsz + \ 816863a3c6cSAndy Adamson decode_putfh_maxsz + \ 817863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 818863a3c6cSAndy Adamson decode_getattr_maxsz) 819cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 820cbe82603SBenny Halevy encode_sequence_maxsz + \ 821cbe82603SBenny Halevy encode_putfh_maxsz + \ 822cbe82603SBenny Halevy encode_layoutreturn_maxsz) 823cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 824cbe82603SBenny Halevy decode_sequence_maxsz + \ 825cbe82603SBenny Halevy decode_putfh_maxsz + \ 826cbe82603SBenny Halevy decode_layoutreturn_maxsz) 827fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 828fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 829fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 830fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 831fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 832fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 833fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 834fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8357d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8367d974794SBryan Schumaker encode_sequence_maxsz + \ 8377d974794SBryan Schumaker encode_test_stateid_maxsz) 8387d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8397d974794SBryan Schumaker decode_sequence_maxsz + \ 8407d974794SBryan Schumaker decode_test_stateid_maxsz) 8419aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8429aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8439aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8449aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8459aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8469aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8472449ea2eSAlexandros Batsakis 8482449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8492449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8502449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8512449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8522449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8532449ea2eSAlexandros Batsakis XDR_UNIT); 8542449ea2eSAlexandros Batsakis 8552449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8562449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8572449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8582449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8592449ea2eSAlexandros Batsakis XDR_UNIT); 86099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8611da177e4SLinus Torvalds 862bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 863bca79478STrond Myklebust [NF4BAD] = 0, 864bca79478STrond Myklebust [NF4REG] = S_IFREG, 865bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 866bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 867bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 868bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 869bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 870bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 871bca79478STrond Myklebust [NF4ATTRDIR] = 0, 872bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8731da177e4SLinus Torvalds }; 8741da177e4SLinus Torvalds 8751da177e4SLinus Torvalds struct compound_hdr { 8761da177e4SLinus Torvalds int32_t status; 8771da177e4SLinus Torvalds uint32_t nops; 878d017931cSAndy Adamson __be32 * nops_p; 8791da177e4SLinus Torvalds uint32_t taglen; 8801da177e4SLinus Torvalds char * tag; 8810c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 88266cc0429SBenny Halevy u32 minorversion; 8831da177e4SLinus Torvalds }; 8841da177e4SLinus Torvalds 88513c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 88613c65ce9SBenny Halevy { 88713c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 88813c65ce9SBenny Halevy BUG_ON(!p); 88913c65ce9SBenny Halevy return p; 89013c65ce9SBenny Halevy } 8911da177e4SLinus Torvalds 892cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 893cb17e556STrond Myklebust { 894cb17e556STrond Myklebust __be32 *p; 895cb17e556STrond Myklebust 896cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 897cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 898cb17e556STrond Myklebust } 899cb17e556STrond Myklebust 9001da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9011da177e4SLinus Torvalds { 9028687b63aSAl Viro __be32 *p; 9031da177e4SLinus Torvalds 9046fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 9051da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 9061da177e4SLinus Torvalds } 9071da177e4SLinus Torvalds 9084ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9094ade9821STrond Myklebust { 9104ade9821STrond Myklebust __be32 *p; 9114ade9821STrond Myklebust 9124ade9821STrond Myklebust p = reserve_space(xdr, 4); 9134ade9821STrond Myklebust *p = cpu_to_be32(n); 9144ade9821STrond Myklebust } 9154ade9821STrond Myklebust 916ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 917ff2eb681STrond Myklebust { 918ff2eb681STrond Myklebust __be32 *p; 919ff2eb681STrond Myklebust 920ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 921ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 922ff2eb681STrond Myklebust } 923ff2eb681STrond Myklebust 9244ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9254ade9821STrond Myklebust const struct nfs_seqid *seqid) 9264ade9821STrond Myklebust { 9274ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 9284ade9821STrond Myklebust } 9294ade9821STrond Myklebust 9300c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9310c4e8c18SBenny Halevy struct rpc_rqst *req, 9320c4e8c18SBenny Halevy struct compound_hdr *hdr) 9331da177e4SLinus Torvalds { 9348687b63aSAl Viro __be32 *p; 935a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9360c4e8c18SBenny Halevy 9370c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9380c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9390c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9400c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9411da177e4SLinus Torvalds 9427fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 9436fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9446fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 945e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 946d017931cSAndy Adamson hdr->nops_p = p; 94734558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 948d017931cSAndy Adamson } 949d017931cSAndy Adamson 950ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 951ab19b481STrond Myklebust uint32_t replen, 952ab19b481STrond Myklebust struct compound_hdr *hdr) 953ab19b481STrond Myklebust { 954ab19b481STrond Myklebust encode_uint32(xdr, op); 955ab19b481STrond Myklebust hdr->nops++; 956ab19b481STrond Myklebust hdr->replen += replen; 957ab19b481STrond Myklebust } 958ab19b481STrond Myklebust 959d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 960d017931cSAndy Adamson { 9617fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 962d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9631da177e4SLinus Torvalds } 9641da177e4SLinus Torvalds 965ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 966ea9d23f5STrond Myklebust { 9672d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 968ea9d23f5STrond Myklebust } 969ea9d23f5STrond Myklebust 9701da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9711da177e4SLinus Torvalds { 972cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 9731da177e4SLinus Torvalds } 9741da177e4SLinus Torvalds 975cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9761da177e4SLinus Torvalds { 9771da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9781da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9791da177e4SLinus Torvalds int owner_namelen = 0; 9801da177e4SLinus Torvalds int owner_grouplen = 0; 9818687b63aSAl Viro __be32 *p; 9828687b63aSAl Viro __be32 *q; 9831da177e4SLinus Torvalds int len; 9841da177e4SLinus Torvalds uint32_t bmval0 = 0; 9851da177e4SLinus Torvalds uint32_t bmval1 = 0; 9861da177e4SLinus Torvalds 9871da177e4SLinus Torvalds /* 9881da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9891da177e4SLinus Torvalds * In the worst-case, this would be 9901da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9911da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 99223ec6965SJ. Bruce Fields * such as owner/group. 9931da177e4SLinus Torvalds */ 9941da177e4SLinus Torvalds len = 16; 9951da177e4SLinus Torvalds 9961da177e4SLinus Torvalds /* Sigh */ 9971da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9981da177e4SLinus Torvalds len += 8; 9991da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 10001da177e4SLinus Torvalds len += 4; 10011da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 1002e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10031da177e4SLinus Torvalds if (owner_namelen < 0) { 1004fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1005e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 10061da177e4SLinus Torvalds /* XXX */ 10071da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10081da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10091da177e4SLinus Torvalds /* goto out; */ 10101da177e4SLinus Torvalds } 10111da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10121da177e4SLinus Torvalds } 10131da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1014e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10151da177e4SLinus Torvalds if (owner_grouplen < 0) { 1016fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1017e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 10181da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10191da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10201da177e4SLinus Torvalds /* goto out; */ 10211da177e4SLinus Torvalds } 10221da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10231da177e4SLinus Torvalds } 10241da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 10251da177e4SLinus Torvalds len += 16; 10261da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 10271da177e4SLinus Torvalds len += 4; 10281da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 10291da177e4SLinus Torvalds len += 16; 10301da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 10311da177e4SLinus Torvalds len += 4; 103213c65ce9SBenny Halevy p = reserve_space(xdr, len); 10331da177e4SLinus Torvalds 10341da177e4SLinus Torvalds /* 10351da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 10361da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 10371da177e4SLinus Torvalds */ 1038e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 10391da177e4SLinus Torvalds q = p; 10401da177e4SLinus Torvalds p += 3; 10411da177e4SLinus Torvalds 10421da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 10431da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 1044b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 10451da177e4SLinus Torvalds } 10461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10471da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1048e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10491da177e4SLinus Torvalds } 10501da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10511da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1052811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10531da177e4SLinus Torvalds } 10541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10551da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1056811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10571da177e4SLinus Torvalds } 10581da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10591da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1060e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1061e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1062d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1063d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10641da177e4SLinus Torvalds } 10651da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10661da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1067e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10681da177e4SLinus Torvalds } 10691da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10701da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1071e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1072e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1073e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1074e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10751da177e4SLinus Torvalds } 10761da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10771da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1078e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10791da177e4SLinus Torvalds } 10801da177e4SLinus Torvalds 10811da177e4SLinus Torvalds /* 10821da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10831da177e4SLinus Torvalds */ 10841da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1085f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10861da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10871da177e4SLinus Torvalds BUG(); 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10901da177e4SLinus Torvalds *q++ = htonl(bmval0); 10911da177e4SLinus Torvalds *q++ = htonl(bmval1); 109234558513SBenny Halevy *q = htonl(len); 10931da177e4SLinus Torvalds 10941da177e4SLinus Torvalds /* out: */ 10951da177e4SLinus Torvalds } 10961da177e4SLinus Torvalds 1097cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10981da177e4SLinus Torvalds { 1099475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1100475d4ba0STrond Myklebust encode_uint32(xdr, access); 11011da177e4SLinus Torvalds } 11021da177e4SLinus Torvalds 1103cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11041da177e4SLinus Torvalds { 1105ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11064ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1107ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 11081da177e4SLinus Torvalds } 11091da177e4SLinus Torvalds 11100b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11111da177e4SLinus Torvalds { 11128687b63aSAl Viro __be32 *p; 11131da177e4SLinus Torvalds 1114475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1115475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1116b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 111734558513SBenny Halevy *p = cpu_to_be32(args->count); 11181da177e4SLinus Torvalds } 11191da177e4SLinus Torvalds 1120cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11211da177e4SLinus Torvalds { 11228687b63aSAl Viro __be32 *p; 11231da177e4SLinus Torvalds 1124475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1125475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11261da177e4SLinus Torvalds 11271da177e4SLinus Torvalds switch (create->ftype) { 11281da177e4SLinus Torvalds case NF4LNK: 112913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 113034558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 113194a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11321da177e4SLinus Torvalds break; 11331da177e4SLinus Torvalds 11341da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 113513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1136e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 113734558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11381da177e4SLinus Torvalds break; 11391da177e4SLinus Torvalds 11401da177e4SLinus Torvalds default: 11411da177e4SLinus Torvalds break; 11421da177e4SLinus Torvalds } 11431da177e4SLinus Torvalds 1144811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1145cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11461da177e4SLinus Torvalds } 11471da177e4SLinus Torvalds 1148cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11491da177e4SLinus Torvalds { 11508687b63aSAl Viro __be32 *p; 11511da177e4SLinus Torvalds 1152475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1153475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1154e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 115534558513SBenny Halevy *p = cpu_to_be32(bitmap); 11561da177e4SLinus Torvalds } 11571da177e4SLinus Torvalds 1158cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11591da177e4SLinus Torvalds { 11608687b63aSAl Viro __be32 *p; 11611da177e4SLinus Torvalds 1162475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1163475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1164e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1165e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 116634558513SBenny Halevy *p = cpu_to_be32(bm1); 11671da177e4SLinus Torvalds } 11681da177e4SLinus Torvalds 1169dae100c2SFred Isaman static void 1170dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1171dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1172dae100c2SFred Isaman struct compound_hdr *hdr) 1173dae100c2SFred Isaman { 1174dae100c2SFred Isaman __be32 *p; 1175dae100c2SFred Isaman 1176ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1177dae100c2SFred Isaman if (bm2) { 1178dae100c2SFred Isaman p = reserve_space(xdr, 16); 1179dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1180dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1181dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1182dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1183dae100c2SFred Isaman } else if (bm1) { 1184dae100c2SFred Isaman p = reserve_space(xdr, 12); 1185dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1186dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1187dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1188dae100c2SFred Isaman } else { 1189dae100c2SFred Isaman p = reserve_space(xdr, 8); 1190dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1191dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1192dae100c2SFred Isaman } 1193dae100c2SFred Isaman } 1194dae100c2SFred Isaman 1195cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11961da177e4SLinus Torvalds { 1197cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1198d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11991da177e4SLinus Torvalds } 12001da177e4SLinus Torvalds 120188034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 12021549210fSTrond Myklebust const u32 *open_bitmap, 120388034c3dSAndy Adamson struct compound_hdr *hdr) 120488034c3dSAndy Adamson { 120588034c3dSAndy Adamson encode_getattr_three(xdr, 12061549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12071549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12081549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 120988034c3dSAndy Adamson hdr); 121088034c3dSAndy Adamson } 121188034c3dSAndy Adamson 1212cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12131da177e4SLinus Torvalds { 1214dae100c2SFred Isaman encode_getattr_three(xdr, 1215dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1216dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1217dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1218dae100c2SFred Isaman hdr); 12191da177e4SLinus Torvalds } 12201da177e4SLinus Torvalds 1221cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1222830b8e33SManoj Naik { 1223cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1224cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1225830b8e33SManoj Naik } 1226830b8e33SManoj Naik 1227cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12281da177e4SLinus Torvalds { 1229ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12301da177e4SLinus Torvalds } 12311da177e4SLinus Torvalds 1232cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12331da177e4SLinus Torvalds { 1234ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12356fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12361da177e4SLinus Torvalds } 12371da177e4SLinus Torvalds 1238911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1239911d1aafSTrond Myklebust { 1240f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1241911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1242911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1243911d1aafSTrond Myklebust } 1244911d1aafSTrond Myklebust 1245911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1246911d1aafSTrond Myklebust { 1247911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1248911d1aafSTrond Myklebust return ~(uint64_t)0; 1249911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1250911d1aafSTrond Myklebust } 1251911d1aafSTrond Myklebust 1252daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1253daccbdedSTrond Myklebust { 1254daccbdedSTrond Myklebust __be32 *p; 1255daccbdedSTrond Myklebust 1256d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1257daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1258d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1259daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1260d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1261daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1262daccbdedSTrond Myklebust } 1263daccbdedSTrond Myklebust 12641da177e4SLinus Torvalds /* 12651da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12661da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12671da177e4SLinus Torvalds */ 1268cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12691da177e4SLinus Torvalds { 12708687b63aSAl Viro __be32 *p; 12711da177e4SLinus Torvalds 1272475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1273475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1274e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1275e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1276b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1277b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 127834558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1279911d1aafSTrond Myklebust if (args->new_lock_owner){ 12804ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1281ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->open_stateid); 12824ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1283daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12841da177e4SLinus Torvalds } 12851da177e4SLinus Torvalds else { 1286ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->lock_stateid); 12874ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 12881da177e4SLinus Torvalds } 12891da177e4SLinus Torvalds } 12901da177e4SLinus Torvalds 1291cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12921da177e4SLinus Torvalds { 12938687b63aSAl Viro __be32 *p; 12941da177e4SLinus Torvalds 1295475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1296475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1297e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1298b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1299b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1300daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13011da177e4SLinus Torvalds } 13021da177e4SLinus Torvalds 1303cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13041da177e4SLinus Torvalds { 13058687b63aSAl Viro __be32 *p; 13061da177e4SLinus Torvalds 1307475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1308475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13094ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1310ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 1311ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1312b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 131334558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13141da177e4SLinus Torvalds } 13151da177e4SLinus Torvalds 1316d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1317d3c7b7ccSTrond Myklebust { 1318ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1319d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1320d3c7b7ccSTrond Myklebust } 1321d3c7b7ccSTrond Myklebust 1322cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13231da177e4SLinus Torvalds { 1324ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13256fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13261da177e4SLinus Torvalds } 13271da177e4SLinus Torvalds 1328dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13291da177e4SLinus Torvalds { 13308687b63aSAl Viro __be32 *p; 13311da177e4SLinus Torvalds 133213c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1333dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13341da177e4SLinus Torvalds case FMODE_READ: 1335e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13361da177e4SLinus Torvalds break; 13371da177e4SLinus Torvalds case FMODE_WRITE: 1338e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13391da177e4SLinus Torvalds break; 13401da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1341e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13421da177e4SLinus Torvalds break; 13431da177e4SLinus Torvalds default: 1344e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13451da177e4SLinus Torvalds } 134634558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13471da177e4SLinus Torvalds } 13481da177e4SLinus Torvalds 13491da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13501da177e4SLinus Torvalds { 13518687b63aSAl Viro __be32 *p; 13521da177e4SLinus Torvalds /* 13531da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13541da177e4SLinus Torvalds * owner 4 = 32 13551da177e4SLinus Torvalds */ 13564ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1357dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 135895b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1359b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 136095b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 136193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1362d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 136395b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 136495b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13651da177e4SLinus Torvalds } 13661da177e4SLinus Torvalds 13671da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13681da177e4SLinus Torvalds { 13698687b63aSAl Viro __be32 *p; 13704882ef72SAlexandros Batsakis struct nfs_client *clp; 13711da177e4SLinus Torvalds 137213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13731da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13741da177e4SLinus Torvalds case 0: 137534558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13761da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13771da177e4SLinus Torvalds break; 13781da177e4SLinus Torvalds default: 13794882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1380a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13814882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13824882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13834882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13844882ef72SAlexandros Batsakis } else { 13854882ef72SAlexandros Batsakis struct iattr dummy; 13864882ef72SAlexandros Batsakis 13874882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13884882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13894882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13904882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13914882ef72SAlexandros Batsakis } 13924882ef72SAlexandros Batsakis } else { 139334558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13941da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13951da177e4SLinus Torvalds } 13961da177e4SLinus Torvalds } 13974882ef72SAlexandros Batsakis } 13981da177e4SLinus Torvalds 13991da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14001da177e4SLinus Torvalds { 14018687b63aSAl Viro __be32 *p; 14021da177e4SLinus Torvalds 140313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14041da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14051da177e4SLinus Torvalds case 0: 140634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14071da177e4SLinus Torvalds break; 14081da177e4SLinus Torvalds default: 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 1462d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1463d9fc6619STrond Myklebust { 1464d9fc6619STrond Myklebust __be32 *p; 1465d9fc6619STrond Myklebust 1466d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1467d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1468d9fc6619STrond Myklebust } 1469d9fc6619STrond Myklebust 1470d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1471d9fc6619STrond Myklebust { 1472d9fc6619STrond Myklebust __be32 *p; 1473d9fc6619STrond Myklebust 1474d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1475d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1476d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1477d9fc6619STrond Myklebust } 1478d9fc6619STrond Myklebust 1479cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14801da177e4SLinus Torvalds { 1481ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 14821da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14831da177e4SLinus Torvalds encode_opentype(xdr, arg); 14841da177e4SLinus Torvalds switch (arg->claim) { 14851da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14861da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14871da177e4SLinus Torvalds break; 14881da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14891da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14901da177e4SLinus Torvalds break; 14911da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14921da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14931da177e4SLinus Torvalds break; 1494d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1495d9fc6619STrond Myklebust encode_claim_fh(xdr); 1496d9fc6619STrond Myklebust break; 1497d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1498d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1499d9fc6619STrond Myklebust break; 15001da177e4SLinus Torvalds default: 15011da177e4SLinus Torvalds BUG(); 15021da177e4SLinus Torvalds } 15031da177e4SLinus Torvalds } 15041da177e4SLinus Torvalds 1505cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15061da177e4SLinus Torvalds { 1507ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1508ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15094ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15101da177e4SLinus Torvalds } 15111da177e4SLinus Torvalds 1512cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15131da177e4SLinus Torvalds { 1514ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1515ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15164ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1517dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 15181da177e4SLinus Torvalds } 15191da177e4SLinus Torvalds 1520cf8cdbe5SAndy Adamson static void 1521d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15221da177e4SLinus Torvalds { 1523ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15246fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15251da177e4SLinus Torvalds } 15261da177e4SLinus Torvalds 1527cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15281da177e4SLinus Torvalds { 1529ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15301da177e4SLinus Torvalds } 15311da177e4SLinus Torvalds 1532cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15331da177e4SLinus Torvalds { 15348687b63aSAl Viro __be32 *p; 15351da177e4SLinus Torvalds 1536ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15379b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 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); 162613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 162734558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 162823ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 162923ec6965SJ. Bruce Fields } 163023ec6965SJ. Bruce Fields 1631cf8cdbe5SAndy Adamson static void 1632d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16331da177e4SLinus Torvalds { 1634ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16351da177e4SLinus Torvalds } 16361da177e4SLinus Torvalds 1637cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16381da177e4SLinus Torvalds { 1639ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1640ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1641cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 16421da177e4SLinus Torvalds } 16431da177e4SLinus Torvalds 1644cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16451da177e4SLinus Torvalds { 16468687b63aSAl Viro __be32 *p; 16471da177e4SLinus Torvalds 164870019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1649cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16501da177e4SLinus Torvalds 16511da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 165213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165334558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16541da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16551da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 165613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165734558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 16581da177e4SLinus Torvalds } 16591da177e4SLinus Torvalds 1660bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16611da177e4SLinus Torvalds { 1662475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1663475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1664ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1665cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 16661da177e4SLinus Torvalds } 16671da177e4SLinus Torvalds 1668cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 16691da177e4SLinus Torvalds { 16708687b63aSAl Viro __be32 *p; 16711da177e4SLinus Torvalds 1672ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 16739b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 16741da177e4SLinus Torvalds 167513c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1676b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1677e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 167834558513SBenny Halevy *p = cpu_to_be32(args->count); 16791da177e4SLinus Torvalds 16801da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 16811da177e4SLinus Torvalds } 16821da177e4SLinus Torvalds 1683cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16841da177e4SLinus Torvalds { 1685ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1686ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 16871da177e4SLinus Torvalds } 16889b7b9fccSAndy Adamson 16895a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16905a5ea0d4SBryan Schumaker { 1691ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 16926fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16935a5ea0d4SBryan Schumaker } 16945a5ea0d4SBryan Schumaker 169599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16969b7b9fccSAndy Adamson /* NFSv4.1 operations */ 16977c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 16987c44f1aeSWeston Andros Adamson struct nfs4_session *session, 16997c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 17007c44f1aeSWeston Andros Adamson { 17017c44f1aeSWeston Andros Adamson __be32 *p; 17027c44f1aeSWeston Andros Adamson 17037c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17047c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 17057c44f1aeSWeston Andros Adamson encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17067c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 17077c44f1aeSWeston Andros Adamson *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH); 17087c44f1aeSWeston Andros Adamson *p = 0; /* use_conn_in_rdma_mode = False */ 17097c44f1aeSWeston Andros Adamson } 17107c44f1aeSWeston Andros Adamson 171199fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 171299fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 171399fe60d0SBenny Halevy struct compound_hdr *hdr) 171499fe60d0SBenny Halevy { 171599fe60d0SBenny Halevy __be32 *p; 1716d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1717db8ac8baSWeston Andros Adamson int len = 0; 171899fe60d0SBenny Halevy 171970019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1720cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 172199fe60d0SBenny Halevy 172299fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 172399fe60d0SBenny Halevy 172413c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1725e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1726e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1727db8ac8baSWeston Andros Adamson 1728db8ac8baSWeston Andros Adamson if (send_implementation_id && 1729db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1730db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1731d751f748SJim Rees <= sizeof(impl_name) + 1) 1732db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1733db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1734db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1735db8ac8baSWeston Andros Adamson 1736db8ac8baSWeston Andros Adamson if (len > 0) { 1737db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1738db8ac8baSWeston Andros Adamson 1739db8ac8baSWeston Andros Adamson encode_string(xdr, 1740db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1741db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1742db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1743db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1744db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1745db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1746db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1747db8ac8baSWeston Andros Adamson } else 1748db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 174999fe60d0SBenny Halevy } 1750fc931582SAndy Adamson 1751fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1752fc931582SAndy Adamson struct nfs41_create_session_args *args, 1753fc931582SAndy Adamson struct compound_hdr *hdr) 1754fc931582SAndy Adamson { 1755fc931582SAndy Adamson __be32 *p; 1756fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1757fc931582SAndy Adamson uint32_t len; 1758fc931582SAndy Adamson struct nfs_client *clp = args->client; 1759f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 17608e0d46e1SMike Sager u32 max_resp_sz_cached; 17618e0d46e1SMike Sager 17628e0d46e1SMike Sager /* 17638e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 17648e0d46e1SMike Sager * 2 is the verifier. 17658e0d46e1SMike Sager */ 17668e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 17678e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1768fc931582SAndy Adamson 1769fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1770fc931582SAndy Adamson clp->cl_ipaddr); 177142edd698SBenny Halevy 1772475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 1773475d4ba0STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12); 1774114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1775e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1776e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1777fc931582SAndy Adamson 1778fc931582SAndy Adamson /* Fore Channel */ 1779c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1780e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1781e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 17828e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1783e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1784e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1785e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1786fc931582SAndy Adamson 1787fc931582SAndy Adamson /* Back Channel */ 1788c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1789e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1790e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1791e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1792e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1793e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1794e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1795fc931582SAndy Adamson 1796e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1797e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1798e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1799fc931582SAndy Adamson 1800fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1801f092075dSChuck Lever *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */ 1802811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1803e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1804e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 180534558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1806fc931582SAndy Adamson } 18070f3e66c6SAndy Adamson 18080f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18090f3e66c6SAndy Adamson struct nfs4_session *session, 18100f3e66c6SAndy Adamson struct compound_hdr *hdr) 18110f3e66c6SAndy Adamson { 1812475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1813475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18140f3e66c6SAndy Adamson } 181518019753SRicardo Labiaga 181666245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 181766245539STrond Myklebust uint64_t clientid, 181866245539STrond Myklebust struct compound_hdr *hdr) 181966245539STrond Myklebust { 182066245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 182166245539STrond Myklebust encode_uint64(xdr, clientid); 182266245539STrond Myklebust } 182366245539STrond Myklebust 182418019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 182518019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 182618019753SRicardo Labiaga struct compound_hdr *hdr) 182718019753SRicardo Labiaga { 1828475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1829475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 183018019753SRicardo Labiaga } 183199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 183299fe60d0SBenny Halevy 18339b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18349b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18359b7b9fccSAndy Adamson struct compound_hdr *hdr) 18369b7b9fccSAndy Adamson { 18379b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18382b2fa717STrond Myklebust struct nfs4_session *session; 1839fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 18402b2fa717STrond Myklebust struct nfs4_slot *slot = args->sa_slot; 1841fc01cea9SAndy Adamson __be32 *p; 18429b7b9fccSAndy Adamson 18432b2fa717STrond Myklebust if (slot == NULL) 18449b7b9fccSAndy Adamson return; 18459b7b9fccSAndy Adamson 18462b2fa717STrond Myklebust tp = slot->table; 18472b2fa717STrond Myklebust session = tp->session; 1848fc01cea9SAndy Adamson 1849475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1850fc01cea9SAndy Adamson 1851fc01cea9SAndy Adamson /* 1852fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1853fc01cea9SAndy Adamson */ 1854fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1855fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1856fc01cea9SAndy Adamson __func__, 1857fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1858fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1859fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1860fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 18612b2fa717STrond Myklebust slot->seq_nr, slot->slot_nr, 1862fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1863475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 186493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 18662b2fa717STrond Myklebust *p++ = cpu_to_be32(slot->slot_nr); 1867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 186834558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 18699b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 18709b7b9fccSAndy Adamson } 18719b7b9fccSAndy Adamson 1872b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1873b1f69b75SAndy Adamson static void 18747f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 18757f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 18767f11d8d3SAndy Adamson struct compound_hdr *hdr) 18777f11d8d3SAndy Adamson { 18787f11d8d3SAndy Adamson __be32 *p; 18797f11d8d3SAndy Adamson nfs4_verifier dummy = { 18807f11d8d3SAndy Adamson .data = "dummmmmy", 18817f11d8d3SAndy Adamson }; 18827f11d8d3SAndy Adamson 1883475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr); 1884475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 18857f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 18867f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 18877f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 18887f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 18897f11d8d3SAndy Adamson } 18907f11d8d3SAndy Adamson 18917f11d8d3SAndy Adamson static void 1892b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1893b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1894b1f69b75SAndy Adamson struct compound_hdr *hdr) 1895b1f69b75SAndy Adamson { 1896b1f69b75SAndy Adamson __be32 *p; 1897b1f69b75SAndy Adamson 1898475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 1899475d4ba0STrond Myklebust p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE); 1900b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1901b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1902b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1903b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1904b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1905b1f69b75SAndy Adamson } 1906b1f69b75SAndy Adamson 1907b1f69b75SAndy Adamson static void 1908b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1909b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1910b1f69b75SAndy Adamson struct compound_hdr *hdr) 1911b1f69b75SAndy Adamson { 1912b1f69b75SAndy Adamson __be32 *p; 1913b1f69b75SAndy Adamson 1914475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1915475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1916b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1917b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1918b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1919b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1920b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1921b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1922ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1923475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1924b1f69b75SAndy Adamson 1925b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1926b1f69b75SAndy Adamson __func__, 1927b1f69b75SAndy Adamson args->type, 1928b1f69b75SAndy Adamson args->range.iomode, 1929b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1930b1f69b75SAndy Adamson (unsigned long)args->range.length, 1931b1f69b75SAndy Adamson args->maxcount); 1932b1f69b75SAndy Adamson } 1933863a3c6cSAndy Adamson 1934863a3c6cSAndy Adamson static int 1935863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1936ac7db726SBenny Halevy struct inode *inode, 1937863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1938863a3c6cSAndy Adamson struct compound_hdr *hdr) 1939863a3c6cSAndy Adamson { 1940863a3c6cSAndy Adamson __be32 *p; 1941863a3c6cSAndy Adamson 1942863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1943863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1944863a3c6cSAndy Adamson 1945475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 1946475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1947863a3c6cSAndy Adamson /* Only whole file layouts */ 1948863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19493557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1950ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 1951ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1952ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1953863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1954863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1955863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1956863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1957ac7db726SBenny Halevy 1958ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 1959ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 1960ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 1961475d4ba0STrond Myklebust else 1962475d4ba0STrond Myklebust encode_uint32(xdr, 0); /* no layout-type payload */ 1963863a3c6cSAndy Adamson 1964863a3c6cSAndy Adamson return 0; 1965863a3c6cSAndy Adamson } 1966cbe82603SBenny Halevy 1967cbe82603SBenny Halevy static void 1968cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 1969cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 1970cbe82603SBenny Halevy struct compound_hdr *hdr) 1971cbe82603SBenny Halevy { 1972cbe82603SBenny Halevy __be32 *p; 1973cbe82603SBenny Halevy 1974475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 1975475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 1976cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 1977cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 1978cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 1979cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 1980ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1981cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 1982cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 1983cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 1984ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1985cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 198604a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 198704a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 198804a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 1989475d4ba0STrond Myklebust } else 1990475d4ba0STrond Myklebust encode_uint32(xdr, 0); 1991cbe82603SBenny Halevy } 1992fca78d6dSBryan Schumaker 1993fca78d6dSBryan Schumaker static int 1994fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 1995fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 1996fca78d6dSBryan Schumaker struct compound_hdr *hdr) 1997fca78d6dSBryan Schumaker { 1998475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 1999475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2000fca78d6dSBryan Schumaker return 0; 2001fca78d6dSBryan Schumaker } 20027d974794SBryan Schumaker 20037d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20047d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20057d974794SBryan Schumaker struct compound_hdr *hdr) 20067d974794SBryan Schumaker { 2007475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2008475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2009ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20107d974794SBryan Schumaker } 20119aeda35fSBryan Schumaker 20129aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20139aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20149aeda35fSBryan Schumaker struct compound_hdr *hdr) 20159aeda35fSBryan Schumaker { 2016ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 2017ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20189aeda35fSBryan Schumaker } 2019b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2020b1f69b75SAndy Adamson 20211da177e4SLinus Torvalds /* 20221da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20231da177e4SLinus Torvalds */ 20241da177e4SLinus Torvalds 202566cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 202666cc0429SBenny Halevy { 202766cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 20282b2fa717STrond Myklebust 20292b2fa717STrond Myklebust if (args->sa_slot) 20302b2fa717STrond Myklebust return args->sa_slot->table->session->clp->cl_mvops->minor_version; 203166cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 203266cc0429SBenny Halevy return 0; 203366cc0429SBenny Halevy } 203466cc0429SBenny Halevy 20351da177e4SLinus Torvalds /* 20361da177e4SLinus Torvalds * Encode an ACCESS request 20371da177e4SLinus Torvalds */ 20389f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20399f06c719SChuck Lever const struct nfs4_accessargs *args) 20401da177e4SLinus Torvalds { 20411da177e4SLinus Torvalds struct compound_hdr hdr = { 204266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20431da177e4SLinus Torvalds }; 20441da177e4SLinus Torvalds 20459f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20469f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20479f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20489f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 20499f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2050d017931cSAndy Adamson encode_nops(&hdr); 20511da177e4SLinus Torvalds } 20521da177e4SLinus Torvalds 20531da177e4SLinus Torvalds /* 20541da177e4SLinus Torvalds * Encode LOOKUP request 20551da177e4SLinus Torvalds */ 20569f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 20579f06c719SChuck Lever const struct nfs4_lookup_arg *args) 20581da177e4SLinus Torvalds { 20591da177e4SLinus Torvalds struct compound_hdr hdr = { 206066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20611da177e4SLinus Torvalds }; 20621da177e4SLinus Torvalds 20639f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20649f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20659f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 20669f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 20679f06c719SChuck Lever encode_getfh(xdr, &hdr); 20689f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2069d017931cSAndy Adamson encode_nops(&hdr); 20701da177e4SLinus Torvalds } 20711da177e4SLinus Torvalds 20721da177e4SLinus Torvalds /* 20731da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 20741da177e4SLinus Torvalds */ 20759f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 20769f06c719SChuck Lever struct xdr_stream *xdr, 20779f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 20781da177e4SLinus Torvalds { 20791da177e4SLinus Torvalds struct compound_hdr hdr = { 208066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20811da177e4SLinus Torvalds }; 20821da177e4SLinus Torvalds 20839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20859f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 20869f06c719SChuck Lever encode_getfh(xdr, &hdr); 20879f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2088d017931cSAndy Adamson encode_nops(&hdr); 20891da177e4SLinus Torvalds } 20901da177e4SLinus Torvalds 20911da177e4SLinus Torvalds /* 20921da177e4SLinus Torvalds * Encode REMOVE request 20931da177e4SLinus Torvalds */ 20949f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 20959f06c719SChuck Lever const struct nfs_removeargs *args) 20961da177e4SLinus Torvalds { 20971da177e4SLinus Torvalds struct compound_hdr hdr = { 209866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20991da177e4SLinus Torvalds }; 21001da177e4SLinus Torvalds 21019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21049f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2105d017931cSAndy Adamson encode_nops(&hdr); 21061da177e4SLinus Torvalds } 21071da177e4SLinus Torvalds 21081da177e4SLinus Torvalds /* 21091da177e4SLinus Torvalds * Encode RENAME request 21101da177e4SLinus Torvalds */ 21119f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21129f06c719SChuck Lever const struct nfs_renameargs *args) 21131da177e4SLinus Torvalds { 21141da177e4SLinus Torvalds struct compound_hdr hdr = { 211566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21161da177e4SLinus Torvalds }; 21171da177e4SLinus Torvalds 21189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21209f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21219f06c719SChuck Lever encode_savefh(xdr, &hdr); 21229f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21239f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2124d017931cSAndy Adamson encode_nops(&hdr); 21251da177e4SLinus Torvalds } 21261da177e4SLinus Torvalds 21271da177e4SLinus Torvalds /* 21281da177e4SLinus Torvalds * Encode LINK request 21291da177e4SLinus Torvalds */ 21309f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21319f06c719SChuck Lever const struct nfs4_link_arg *args) 21321da177e4SLinus Torvalds { 21331da177e4SLinus Torvalds struct compound_hdr hdr = { 213466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21351da177e4SLinus Torvalds }; 21361da177e4SLinus Torvalds 21379f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21389f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21399f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21409f06c719SChuck Lever encode_savefh(xdr, &hdr); 21419f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21429f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21439f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21449f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2145d017931cSAndy Adamson encode_nops(&hdr); 21461da177e4SLinus Torvalds } 21471da177e4SLinus Torvalds 21481da177e4SLinus Torvalds /* 21491da177e4SLinus Torvalds * Encode CREATE request 21501da177e4SLinus Torvalds */ 21519f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 21529f06c719SChuck Lever const struct nfs4_create_arg *args) 21531da177e4SLinus Torvalds { 21541da177e4SLinus Torvalds struct compound_hdr hdr = { 215566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21561da177e4SLinus Torvalds }; 21571da177e4SLinus Torvalds 21589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21609f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21619f06c719SChuck Lever encode_create(xdr, args, &hdr); 21629f06c719SChuck Lever encode_getfh(xdr, &hdr); 21639f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2164d017931cSAndy Adamson encode_nops(&hdr); 21651da177e4SLinus Torvalds } 21661da177e4SLinus Torvalds 21671da177e4SLinus Torvalds /* 21681da177e4SLinus Torvalds * Encode SYMLINK request 21691da177e4SLinus Torvalds */ 21709f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21719f06c719SChuck Lever const struct nfs4_create_arg *args) 21721da177e4SLinus Torvalds { 21739f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 21741da177e4SLinus Torvalds } 21751da177e4SLinus Torvalds 21761da177e4SLinus Torvalds /* 21771da177e4SLinus Torvalds * Encode GETATTR request 21781da177e4SLinus Torvalds */ 21799f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 21809f06c719SChuck Lever const struct nfs4_getattr_arg *args) 21811da177e4SLinus Torvalds { 21821da177e4SLinus Torvalds struct compound_hdr hdr = { 218366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21841da177e4SLinus Torvalds }; 21851da177e4SLinus Torvalds 21869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21879f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21889f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21899f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2190d017931cSAndy Adamson encode_nops(&hdr); 21911da177e4SLinus Torvalds } 21921da177e4SLinus Torvalds 21931da177e4SLinus Torvalds /* 21941da177e4SLinus Torvalds * Encode a CLOSE request 21951da177e4SLinus Torvalds */ 21969f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 21979f06c719SChuck Lever struct nfs_closeargs *args) 21981da177e4SLinus Torvalds { 21991da177e4SLinus Torvalds struct compound_hdr hdr = { 220066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22011da177e4SLinus Torvalds }; 22021da177e4SLinus Torvalds 22039f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22049f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22059f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22069f06c719SChuck Lever encode_close(xdr, args, &hdr); 22079f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2208d017931cSAndy Adamson encode_nops(&hdr); 22091da177e4SLinus Torvalds } 22101da177e4SLinus Torvalds 22111da177e4SLinus Torvalds /* 22121da177e4SLinus Torvalds * Encode an OPEN request 22131da177e4SLinus Torvalds */ 22149f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22159f06c719SChuck Lever struct nfs_openargs *args) 22161da177e4SLinus Torvalds { 22171da177e4SLinus Torvalds struct compound_hdr hdr = { 221866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22191da177e4SLinus Torvalds }; 22201da177e4SLinus Torvalds 22219f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22229f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22239f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22249f06c719SChuck Lever encode_open(xdr, args, &hdr); 22259f06c719SChuck Lever encode_getfh(xdr, &hdr); 2226ae2bb032SWeston Andros Adamson if (args->access) 22276168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22281549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2229d017931cSAndy Adamson encode_nops(&hdr); 22301da177e4SLinus Torvalds } 22311da177e4SLinus Torvalds 22321da177e4SLinus Torvalds /* 22331da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22341da177e4SLinus Torvalds */ 22359f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22369f06c719SChuck Lever struct xdr_stream *xdr, 22379f06c719SChuck Lever struct nfs_open_confirmargs *args) 22381da177e4SLinus Torvalds { 22391da177e4SLinus Torvalds struct compound_hdr hdr = { 2240d017931cSAndy Adamson .nops = 0, 22411da177e4SLinus Torvalds }; 22421da177e4SLinus Torvalds 22439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22459f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2246d017931cSAndy Adamson encode_nops(&hdr); 22471da177e4SLinus Torvalds } 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds /* 22501da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 22511da177e4SLinus Torvalds */ 22529f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 22539f06c719SChuck Lever struct xdr_stream *xdr, 22549f06c719SChuck Lever struct nfs_openargs *args) 22551da177e4SLinus Torvalds { 22561da177e4SLinus Torvalds struct compound_hdr hdr = { 225766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22581da177e4SLinus Torvalds }; 22591da177e4SLinus Torvalds 22609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22619f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22629f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22639f06c719SChuck Lever encode_open(xdr, args, &hdr); 2264ae2bb032SWeston Andros Adamson if (args->access) 22656168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2266e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2267d017931cSAndy Adamson encode_nops(&hdr); 22681da177e4SLinus Torvalds } 22691da177e4SLinus Torvalds 22701da177e4SLinus Torvalds /* 22711da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 22721da177e4SLinus Torvalds */ 22739f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 22749f06c719SChuck Lever struct xdr_stream *xdr, 22759f06c719SChuck Lever struct nfs_closeargs *args) 22761da177e4SLinus Torvalds { 22771da177e4SLinus Torvalds struct compound_hdr hdr = { 227866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22791da177e4SLinus Torvalds }; 22801da177e4SLinus Torvalds 22819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22829f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22839f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22849f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 22859f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2286d017931cSAndy Adamson encode_nops(&hdr); 22871da177e4SLinus Torvalds } 22881da177e4SLinus Torvalds 22891da177e4SLinus Torvalds /* 22901da177e4SLinus Torvalds * Encode a LOCK request 22911da177e4SLinus Torvalds */ 22929f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 22939f06c719SChuck Lever struct nfs_lock_args *args) 22941da177e4SLinus Torvalds { 22951da177e4SLinus Torvalds struct compound_hdr hdr = { 229666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22971da177e4SLinus Torvalds }; 22981da177e4SLinus Torvalds 22999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23009f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23019f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23029f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2303d017931cSAndy Adamson encode_nops(&hdr); 23041da177e4SLinus Torvalds } 23051da177e4SLinus Torvalds 23061da177e4SLinus Torvalds /* 23071da177e4SLinus Torvalds * Encode a LOCKT request 23081da177e4SLinus Torvalds */ 23099f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23109f06c719SChuck Lever struct nfs_lockt_args *args) 23111da177e4SLinus Torvalds { 23121da177e4SLinus Torvalds struct compound_hdr hdr = { 231366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23141da177e4SLinus Torvalds }; 23151da177e4SLinus Torvalds 23169f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23179f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23189f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23199f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2320d017931cSAndy Adamson encode_nops(&hdr); 23211da177e4SLinus Torvalds } 23221da177e4SLinus Torvalds 23231da177e4SLinus Torvalds /* 23241da177e4SLinus Torvalds * Encode a LOCKU request 23251da177e4SLinus Torvalds */ 23269f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23279f06c719SChuck Lever struct nfs_locku_args *args) 23281da177e4SLinus Torvalds { 23291da177e4SLinus Torvalds struct compound_hdr hdr = { 233066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23311da177e4SLinus Torvalds }; 23321da177e4SLinus Torvalds 23339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23349f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23359f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23369f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2337d017931cSAndy Adamson encode_nops(&hdr); 23381da177e4SLinus Torvalds } 23391da177e4SLinus Torvalds 23409f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23419f06c719SChuck Lever struct xdr_stream *xdr, 23429f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2343d3c7b7ccSTrond Myklebust { 2344d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2345d3c7b7ccSTrond Myklebust .minorversion = 0, 2346d3c7b7ccSTrond Myklebust }; 2347d3c7b7ccSTrond Myklebust 23489f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23499f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2350d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2351d3c7b7ccSTrond Myklebust } 2352d3c7b7ccSTrond Myklebust 23531da177e4SLinus Torvalds /* 23541da177e4SLinus Torvalds * Encode a READLINK request 23551da177e4SLinus Torvalds */ 23569f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 23579f06c719SChuck Lever const struct nfs4_readlink *args) 23581da177e4SLinus Torvalds { 23591da177e4SLinus Torvalds struct compound_hdr hdr = { 236066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23611da177e4SLinus Torvalds }; 23621da177e4SLinus Torvalds 23639f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23649f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23659f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23669f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2367e3a535e1STrond Myklebust 236828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2369e3a535e1STrond Myklebust args->pgbase, args->pglen); 2370d017931cSAndy Adamson encode_nops(&hdr); 23711da177e4SLinus Torvalds } 23721da177e4SLinus Torvalds 23731da177e4SLinus Torvalds /* 23741da177e4SLinus Torvalds * Encode a READDIR request 23751da177e4SLinus Torvalds */ 23769f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 23779f06c719SChuck Lever const struct nfs4_readdir_arg *args) 23781da177e4SLinus Torvalds { 23791da177e4SLinus Torvalds struct compound_hdr hdr = { 238066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23811da177e4SLinus Torvalds }; 23821da177e4SLinus Torvalds 23839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23869f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2387d6ac02dfSTrond Myklebust 238828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2389d6ac02dfSTrond Myklebust args->pgbase, args->count); 2390d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 239128f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2392d6ac02dfSTrond Myklebust args->pgbase, args->count); 2393d017931cSAndy Adamson encode_nops(&hdr); 23941da177e4SLinus Torvalds } 23951da177e4SLinus Torvalds 23961da177e4SLinus Torvalds /* 23971da177e4SLinus Torvalds * Encode a READ request 23981da177e4SLinus Torvalds */ 23999f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24009f06c719SChuck Lever struct nfs_readargs *args) 24011da177e4SLinus Torvalds { 24021da177e4SLinus Torvalds struct compound_hdr hdr = { 240366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24041da177e4SLinus Torvalds }; 24051da177e4SLinus Torvalds 24069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24089f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24099f06c719SChuck Lever encode_read(xdr, args, &hdr); 24101da177e4SLinus Torvalds 241128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24121da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24134f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2414d017931cSAndy Adamson encode_nops(&hdr); 24151da177e4SLinus Torvalds } 24161da177e4SLinus Torvalds 24171da177e4SLinus Torvalds /* 24181da177e4SLinus Torvalds * Encode an SETATTR request 24191da177e4SLinus Torvalds */ 24209f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24219f06c719SChuck Lever struct nfs_setattrargs *args) 24221da177e4SLinus Torvalds { 24231da177e4SLinus Torvalds struct compound_hdr hdr = { 242466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24251da177e4SLinus Torvalds }; 24261da177e4SLinus Torvalds 24279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24289f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24299f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24309f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24319f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2432d017931cSAndy Adamson encode_nops(&hdr); 24331da177e4SLinus Torvalds } 24341da177e4SLinus Torvalds 24351da177e4SLinus Torvalds /* 2436029d105eSJ. Bruce Fields * Encode a GETACL request 2437029d105eSJ. Bruce Fields */ 24389f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2439029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2440029d105eSJ. Bruce Fields { 2441029d105eSJ. Bruce Fields struct compound_hdr hdr = { 244266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2443029d105eSJ. Bruce Fields }; 244428f56694SBenny Halevy uint32_t replen; 2445029d105eSJ. Bruce Fields 24469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2449bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 24509f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2451cf8cdbe5SAndy Adamson 245228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2453029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2454bf118a34SAndy Adamson 2455d017931cSAndy Adamson encode_nops(&hdr); 2456029d105eSJ. Bruce Fields } 2457029d105eSJ. Bruce Fields 2458029d105eSJ. Bruce Fields /* 24591da177e4SLinus Torvalds * Encode a WRITE request 24601da177e4SLinus Torvalds */ 24619f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 24629f06c719SChuck Lever struct nfs_writeargs *args) 24631da177e4SLinus Torvalds { 24641da177e4SLinus Torvalds struct compound_hdr hdr = { 246566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24661da177e4SLinus Torvalds }; 24671da177e4SLinus Torvalds 24689f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24699f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24709f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24719f06c719SChuck Lever encode_write(xdr, args, &hdr); 24724f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 24737ffd1064SFred Isaman if (args->bitmask) 24749f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2475d017931cSAndy Adamson encode_nops(&hdr); 24761da177e4SLinus Torvalds } 24771da177e4SLinus Torvalds 24781da177e4SLinus Torvalds /* 24791da177e4SLinus Torvalds * a COMMIT request 24801da177e4SLinus Torvalds */ 24819f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 24820b7c0153SFred Isaman struct nfs_commitargs *args) 24831da177e4SLinus Torvalds { 24841da177e4SLinus Torvalds struct compound_hdr hdr = { 248566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24861da177e4SLinus Torvalds }; 24871da177e4SLinus Torvalds 24889f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24899f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24909f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24919f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2492d017931cSAndy Adamson encode_nops(&hdr); 24931da177e4SLinus Torvalds } 24941da177e4SLinus Torvalds 24951da177e4SLinus Torvalds /* 24961da177e4SLinus Torvalds * FSINFO request 24971da177e4SLinus Torvalds */ 24989f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 24999f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25001da177e4SLinus Torvalds { 25011da177e4SLinus Torvalds struct compound_hdr hdr = { 250266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25031da177e4SLinus Torvalds }; 25041da177e4SLinus Torvalds 25059f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25069f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25079f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25089f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2509d017931cSAndy Adamson encode_nops(&hdr); 25101da177e4SLinus Torvalds } 25111da177e4SLinus Torvalds 25121da177e4SLinus Torvalds /* 25131da177e4SLinus Torvalds * a PATHCONF request 25141da177e4SLinus Torvalds */ 25159f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25169f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25171da177e4SLinus Torvalds { 25181da177e4SLinus Torvalds struct compound_hdr hdr = { 251966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25201da177e4SLinus Torvalds }; 25211da177e4SLinus Torvalds 25229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25239f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25249f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25259f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2526d017931cSAndy Adamson &hdr); 2527d017931cSAndy Adamson encode_nops(&hdr); 25281da177e4SLinus Torvalds } 25291da177e4SLinus Torvalds 25301da177e4SLinus Torvalds /* 25311da177e4SLinus Torvalds * a STATFS request 25321da177e4SLinus Torvalds */ 25339f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25349f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25351da177e4SLinus Torvalds { 25361da177e4SLinus Torvalds struct compound_hdr hdr = { 253766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25381da177e4SLinus Torvalds }; 25391da177e4SLinus Torvalds 25409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25439f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2544d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2545d017931cSAndy Adamson encode_nops(&hdr); 25461da177e4SLinus Torvalds } 25471da177e4SLinus Torvalds 25481da177e4SLinus Torvalds /* 25491da177e4SLinus Torvalds * GETATTR_BITMAP request 25501da177e4SLinus Torvalds */ 25519f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 25529f06c719SChuck Lever struct xdr_stream *xdr, 255343652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 25541da177e4SLinus Torvalds { 25551da177e4SLinus Torvalds struct compound_hdr hdr = { 255666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25571da177e4SLinus Torvalds }; 25581da177e4SLinus Torvalds 25599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25619f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 25629f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2563264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 25641da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 25651da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2566d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2567d017931cSAndy Adamson encode_nops(&hdr); 25681da177e4SLinus Torvalds } 25691da177e4SLinus Torvalds 25701da177e4SLinus Torvalds /* 25711da177e4SLinus Torvalds * a RENEW request 25721da177e4SLinus Torvalds */ 25739f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 25749f06c719SChuck Lever struct nfs_client *clp) 25751da177e4SLinus Torvalds { 25761da177e4SLinus Torvalds struct compound_hdr hdr = { 2577d017931cSAndy Adamson .nops = 0, 25781da177e4SLinus Torvalds }; 25791da177e4SLinus Torvalds 25809f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2581bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2582d017931cSAndy Adamson encode_nops(&hdr); 25831da177e4SLinus Torvalds } 25841da177e4SLinus Torvalds 25851da177e4SLinus Torvalds /* 25861da177e4SLinus Torvalds * a SETCLIENTID request 25871da177e4SLinus Torvalds */ 25889f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 25899f06c719SChuck Lever struct xdr_stream *xdr, 25909f06c719SChuck Lever struct nfs4_setclientid *sc) 25911da177e4SLinus Torvalds { 25921da177e4SLinus Torvalds struct compound_hdr hdr = { 2593d017931cSAndy Adamson .nops = 0, 25941da177e4SLinus Torvalds }; 25951da177e4SLinus Torvalds 25969f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25979f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2598d017931cSAndy Adamson encode_nops(&hdr); 25991da177e4SLinus Torvalds } 26001da177e4SLinus Torvalds 26011da177e4SLinus Torvalds /* 26021da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 26031da177e4SLinus Torvalds */ 26049f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26059f06c719SChuck Lever struct xdr_stream *xdr, 26069f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26071da177e4SLinus Torvalds { 26081da177e4SLinus Torvalds struct compound_hdr hdr = { 2609d017931cSAndy Adamson .nops = 0, 26101da177e4SLinus Torvalds }; 2611dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 26121da177e4SLinus Torvalds 26139f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26149f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 26159f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 26169f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2617d017931cSAndy Adamson encode_nops(&hdr); 26181da177e4SLinus Torvalds } 26191da177e4SLinus Torvalds 26201da177e4SLinus Torvalds /* 26211da177e4SLinus Torvalds * DELEGRETURN request 26221da177e4SLinus Torvalds */ 26239f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26249f06c719SChuck Lever struct xdr_stream *xdr, 26259f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26261da177e4SLinus Torvalds { 26271da177e4SLinus Torvalds struct compound_hdr hdr = { 262866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26291da177e4SLinus Torvalds }; 26301da177e4SLinus Torvalds 26319f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26329f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26339f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26349f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2635e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2636d017931cSAndy Adamson encode_nops(&hdr); 26371da177e4SLinus Torvalds } 26381da177e4SLinus Torvalds 26391da177e4SLinus Torvalds /* 2640683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2641683b57b4STrond Myklebust */ 26429f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26439f06c719SChuck Lever struct xdr_stream *xdr, 26449f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2645683b57b4STrond Myklebust { 2646683b57b4STrond Myklebust struct compound_hdr hdr = { 264766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2648683b57b4STrond Myklebust }; 264928f56694SBenny Halevy uint32_t replen; 2650683b57b4STrond Myklebust 26519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26529f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26539f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 26549f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 265528f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 26569f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2657cf8cdbe5SAndy Adamson 265828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2659683b57b4STrond Myklebust 0, PAGE_SIZE); 2660d017931cSAndy Adamson encode_nops(&hdr); 2661683b57b4STrond Myklebust } 2662683b57b4STrond Myklebust 26635a5ea0d4SBryan Schumaker /* 26645a5ea0d4SBryan Schumaker * Encode SECINFO request 26655a5ea0d4SBryan Schumaker */ 26665a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 26675a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 26685a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 26695a5ea0d4SBryan Schumaker { 26705a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 26715a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26725a5ea0d4SBryan Schumaker }; 26735a5ea0d4SBryan Schumaker 26745a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 26755a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 26765a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 26775a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 26785a5ea0d4SBryan Schumaker encode_nops(&hdr); 26795a5ea0d4SBryan Schumaker } 26805a5ea0d4SBryan Schumaker 268199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 268299fe60d0SBenny Halevy /* 26837c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 26847c44f1aeSWeston Andros Adamson */ 26857c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 26867c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 26877c44f1aeSWeston Andros Adamson struct nfs_client *clp) 26887c44f1aeSWeston Andros Adamson { 26897c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 26907c44f1aeSWeston Andros Adamson .minorversion = clp->cl_mvops->minor_version, 26917c44f1aeSWeston Andros Adamson }; 26927c44f1aeSWeston Andros Adamson 26937c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 26947c44f1aeSWeston Andros Adamson encode_bind_conn_to_session(xdr, clp->cl_session, &hdr); 26957c44f1aeSWeston Andros Adamson encode_nops(&hdr); 26967c44f1aeSWeston Andros Adamson } 26977c44f1aeSWeston Andros Adamson 26987c44f1aeSWeston Andros Adamson /* 269999fe60d0SBenny Halevy * EXCHANGE_ID request 270099fe60d0SBenny Halevy */ 27019f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27029f06c719SChuck Lever struct xdr_stream *xdr, 270399fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 270499fe60d0SBenny Halevy { 270599fe60d0SBenny Halevy struct compound_hdr hdr = { 2706a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 270799fe60d0SBenny Halevy }; 270899fe60d0SBenny Halevy 27099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27109f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 271199fe60d0SBenny Halevy encode_nops(&hdr); 271299fe60d0SBenny Halevy } 27132050f0ccSAndy Adamson 27142050f0ccSAndy Adamson /* 2715fc931582SAndy Adamson * a CREATE_SESSION request 2716fc931582SAndy Adamson */ 27179f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27189f06c719SChuck Lever struct xdr_stream *xdr, 2719fc931582SAndy Adamson struct nfs41_create_session_args *args) 2720fc931582SAndy Adamson { 2721fc931582SAndy Adamson struct compound_hdr hdr = { 2722a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2723fc931582SAndy Adamson }; 2724fc931582SAndy Adamson 27259f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27269f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2727fc931582SAndy Adamson encode_nops(&hdr); 2728fc931582SAndy Adamson } 2729fc931582SAndy Adamson 2730fc931582SAndy Adamson /* 27310f3e66c6SAndy Adamson * a DESTROY_SESSION request 27320f3e66c6SAndy Adamson */ 27339f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 27349f06c719SChuck Lever struct xdr_stream *xdr, 27350f3e66c6SAndy Adamson struct nfs4_session *session) 27360f3e66c6SAndy Adamson { 27370f3e66c6SAndy Adamson struct compound_hdr hdr = { 2738a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 27390f3e66c6SAndy Adamson }; 27400f3e66c6SAndy Adamson 27419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27429f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 27430f3e66c6SAndy Adamson encode_nops(&hdr); 27440f3e66c6SAndy Adamson } 27450f3e66c6SAndy Adamson 27460f3e66c6SAndy Adamson /* 274766245539STrond Myklebust * a DESTROY_CLIENTID request 274866245539STrond Myklebust */ 274966245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 275066245539STrond Myklebust struct xdr_stream *xdr, 275166245539STrond Myklebust struct nfs_client *clp) 275266245539STrond Myklebust { 275366245539STrond Myklebust struct compound_hdr hdr = { 275466245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 275566245539STrond Myklebust }; 275666245539STrond Myklebust 275766245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 275866245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 275966245539STrond Myklebust encode_nops(&hdr); 276066245539STrond Myklebust } 276166245539STrond Myklebust 276266245539STrond Myklebust /* 2763fc01cea9SAndy Adamson * a SEQUENCE request 2764fc01cea9SAndy Adamson */ 27659f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2766fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2767fc01cea9SAndy Adamson { 2768fc01cea9SAndy Adamson struct compound_hdr hdr = { 2769fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2770fc01cea9SAndy Adamson }; 2771fc01cea9SAndy Adamson 27729f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27739f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2774fc01cea9SAndy Adamson encode_nops(&hdr); 2775fc01cea9SAndy Adamson } 2776fc01cea9SAndy Adamson 2777fc01cea9SAndy Adamson /* 27782050f0ccSAndy Adamson * a GET_LEASE_TIME request 27792050f0ccSAndy Adamson */ 27809f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 27819f06c719SChuck Lever struct xdr_stream *xdr, 27822050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 27832050f0ccSAndy Adamson { 27842050f0ccSAndy Adamson struct compound_hdr hdr = { 27852050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 27862050f0ccSAndy Adamson }; 2787dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27882050f0ccSAndy Adamson 27899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27909f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 27919f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27929f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 27932050f0ccSAndy Adamson encode_nops(&hdr); 27942050f0ccSAndy Adamson } 279518019753SRicardo Labiaga 279618019753SRicardo Labiaga /* 279718019753SRicardo Labiaga * a RECLAIM_COMPLETE request 279818019753SRicardo Labiaga */ 27999f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28009f06c719SChuck Lever struct xdr_stream *xdr, 280118019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 280218019753SRicardo Labiaga { 280318019753SRicardo Labiaga struct compound_hdr hdr = { 280418019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 280518019753SRicardo Labiaga }; 280618019753SRicardo Labiaga 28079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28099f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 281018019753SRicardo Labiaga encode_nops(&hdr); 281118019753SRicardo Labiaga } 281218019753SRicardo Labiaga 2813b1f69b75SAndy Adamson /* 28147f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28157f11d8d3SAndy Adamson */ 28167f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28177f11d8d3SAndy Adamson struct xdr_stream *xdr, 28187f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 28197f11d8d3SAndy Adamson { 28207f11d8d3SAndy Adamson struct compound_hdr hdr = { 28217f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 28227f11d8d3SAndy Adamson }; 28237f11d8d3SAndy Adamson 28247f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 28257f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 28267f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 28277f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 28287f11d8d3SAndy Adamson encode_nops(&hdr); 28297f11d8d3SAndy Adamson } 28307f11d8d3SAndy Adamson 28317f11d8d3SAndy Adamson /* 2832b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2833b1f69b75SAndy Adamson */ 28349f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28359f06c719SChuck Lever struct xdr_stream *xdr, 2836b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2837b1f69b75SAndy Adamson { 2838b1f69b75SAndy Adamson struct compound_hdr hdr = { 2839b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2840b1f69b75SAndy Adamson }; 2841b1f69b75SAndy Adamson 28429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28449f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2845b1f69b75SAndy Adamson 2846b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2847b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2848b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2849b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2850b1f69b75SAndy Adamson args->pdev->pglen); 2851b1f69b75SAndy Adamson 2852b1f69b75SAndy Adamson encode_nops(&hdr); 2853b1f69b75SAndy Adamson } 2854b1f69b75SAndy Adamson 2855b1f69b75SAndy Adamson /* 2856b1f69b75SAndy Adamson * Encode LAYOUTGET request 2857b1f69b75SAndy Adamson */ 28589f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 28599f06c719SChuck Lever struct xdr_stream *xdr, 2860b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2861b1f69b75SAndy Adamson { 2862b1f69b75SAndy Adamson struct compound_hdr hdr = { 2863b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2864b1f69b75SAndy Adamson }; 2865b1f69b75SAndy Adamson 28669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28679f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28689f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 28699f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 287035124a09SWeston Andros Adamson 287135124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 287235124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 287335124a09SWeston Andros Adamson 2874b1f69b75SAndy Adamson encode_nops(&hdr); 2875b1f69b75SAndy Adamson } 2876863a3c6cSAndy Adamson 2877863a3c6cSAndy Adamson /* 2878863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2879863a3c6cSAndy Adamson */ 2880cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2881863a3c6cSAndy Adamson struct xdr_stream *xdr, 2882863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2883863a3c6cSAndy Adamson { 2884ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2885ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2886863a3c6cSAndy Adamson struct compound_hdr hdr = { 2887863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2888863a3c6cSAndy Adamson }; 2889863a3c6cSAndy Adamson 2890863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2891863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2892863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2893ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2894863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2895863a3c6cSAndy Adamson encode_nops(&hdr); 2896cbe82603SBenny Halevy } 2897cbe82603SBenny Halevy 2898cbe82603SBenny Halevy /* 2899cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2900cbe82603SBenny Halevy */ 2901cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2902cbe82603SBenny Halevy struct xdr_stream *xdr, 2903cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2904cbe82603SBenny Halevy { 2905cbe82603SBenny Halevy struct compound_hdr hdr = { 2906cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2907cbe82603SBenny Halevy }; 2908cbe82603SBenny Halevy 2909cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2910cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2911cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2912cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2913cbe82603SBenny Halevy encode_nops(&hdr); 2914863a3c6cSAndy Adamson } 2915fca78d6dSBryan Schumaker 2916fca78d6dSBryan Schumaker /* 2917fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2918fca78d6dSBryan Schumaker */ 2919fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2920fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2921fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2922fca78d6dSBryan Schumaker { 2923fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2924fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2925fca78d6dSBryan Schumaker }; 2926fca78d6dSBryan Schumaker 2927fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2928fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2929fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2930fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2931fca78d6dSBryan Schumaker encode_nops(&hdr); 2932fca78d6dSBryan Schumaker return 0; 2933fca78d6dSBryan Schumaker } 29347d974794SBryan Schumaker 29357d974794SBryan Schumaker /* 29367d974794SBryan Schumaker * Encode TEST_STATEID request 29377d974794SBryan Schumaker */ 29387d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29397d974794SBryan Schumaker struct xdr_stream *xdr, 29407d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29417d974794SBryan Schumaker { 29427d974794SBryan Schumaker struct compound_hdr hdr = { 29437d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29447d974794SBryan Schumaker }; 29457d974794SBryan Schumaker 29467d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29477d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29487d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 29497d974794SBryan Schumaker encode_nops(&hdr); 29507d974794SBryan Schumaker } 29519aeda35fSBryan Schumaker 29529aeda35fSBryan Schumaker /* 29539aeda35fSBryan Schumaker * Encode FREE_STATEID request 29549aeda35fSBryan Schumaker */ 29559aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 29569aeda35fSBryan Schumaker struct xdr_stream *xdr, 29579aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 29589aeda35fSBryan Schumaker { 29599aeda35fSBryan Schumaker struct compound_hdr hdr = { 29609aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29619aeda35fSBryan Schumaker }; 29629aeda35fSBryan Schumaker 29639aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29649aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29659aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 29669aeda35fSBryan Schumaker encode_nops(&hdr); 29679aeda35fSBryan Schumaker } 296899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 296999fe60d0SBenny Halevy 2970686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2971686841b3SBenny Halevy { 2972686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2973686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2974686841b3SBenny Halevy func, xdr->end - xdr->p); 2975686841b3SBenny Halevy } 29761da177e4SLinus Torvalds 2977683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 29781da177e4SLinus Torvalds { 29798687b63aSAl Viro __be32 *p; 29801da177e4SLinus Torvalds 2981c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2982c0eae66eSBenny Halevy if (unlikely(!p)) 2983c0eae66eSBenny Halevy goto out_overflow; 2984cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2985c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2986c0eae66eSBenny Halevy if (unlikely(!p)) 2987c0eae66eSBenny Halevy goto out_overflow; 29881da177e4SLinus Torvalds *string = (char *)p; 29891da177e4SLinus Torvalds return 0; 2990c0eae66eSBenny Halevy out_overflow: 2991c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2992c0eae66eSBenny Halevy return -EIO; 29931da177e4SLinus Torvalds } 29941da177e4SLinus Torvalds 29951da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 29961da177e4SLinus Torvalds { 29978687b63aSAl Viro __be32 *p; 29981da177e4SLinus Torvalds 2999c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3000c0eae66eSBenny Halevy if (unlikely(!p)) 3001c0eae66eSBenny Halevy goto out_overflow; 30026f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3003cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30041da177e4SLinus Torvalds 3005c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3006c0eae66eSBenny Halevy if (unlikely(!p)) 3007c0eae66eSBenny Halevy goto out_overflow; 30081da177e4SLinus Torvalds hdr->tag = (char *)p; 30091da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3010cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3011aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3012aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30131da177e4SLinus Torvalds return 0; 3014c0eae66eSBenny Halevy out_overflow: 3015c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3016c0eae66eSBenny Halevy return -EIO; 30171da177e4SLinus Torvalds } 30181da177e4SLinus Torvalds 30191da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 30201da177e4SLinus Torvalds { 30218687b63aSAl Viro __be32 *p; 30221da177e4SLinus Torvalds uint32_t opnum; 30231da177e4SLinus Torvalds int32_t nfserr; 30241da177e4SLinus Torvalds 3025c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3026c0eae66eSBenny Halevy if (unlikely(!p)) 3027c0eae66eSBenny Halevy goto out_overflow; 30286f723f77SBenny Halevy opnum = be32_to_cpup(p++); 30291da177e4SLinus Torvalds if (opnum != expected) { 3030fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30311da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30321da177e4SLinus Torvalds opnum, expected); 30331da177e4SLinus Torvalds return -EIO; 30341da177e4SLinus Torvalds } 3035cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 30361da177e4SLinus Torvalds if (nfserr != NFS_OK) 3037856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 30381da177e4SLinus Torvalds return 0; 3039c0eae66eSBenny Halevy out_overflow: 3040c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3041c0eae66eSBenny Halevy return -EIO; 30421da177e4SLinus Torvalds } 30431da177e4SLinus Torvalds 30441da177e4SLinus Torvalds /* Dummy routine */ 3045adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 30461da177e4SLinus Torvalds { 30478687b63aSAl Viro __be32 *p; 3048683b57b4STrond Myklebust unsigned int strlen; 30491da177e4SLinus Torvalds char *str; 30501da177e4SLinus Torvalds 3051c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3052c0eae66eSBenny Halevy if (likely(p)) 30531da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3054c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3055c0eae66eSBenny Halevy return -EIO; 30561da177e4SLinus Torvalds } 30571da177e4SLinus Torvalds 30581da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 30591da177e4SLinus Torvalds { 30608687b63aSAl Viro uint32_t bmlen; 30618687b63aSAl Viro __be32 *p; 30621da177e4SLinus Torvalds 3063c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3064c0eae66eSBenny Halevy if (unlikely(!p)) 3065c0eae66eSBenny Halevy goto out_overflow; 3066cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 30671da177e4SLinus Torvalds 3068dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3069c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3070c0eae66eSBenny Halevy if (unlikely(!p)) 3071c0eae66eSBenny Halevy goto out_overflow; 30721da177e4SLinus Torvalds if (bmlen > 0) { 30736f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3074dae100c2SFred Isaman if (bmlen > 1) { 3075dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3076dae100c2SFred Isaman if (bmlen > 2) 3077dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3078dae100c2SFred Isaman } 30791da177e4SLinus Torvalds } 30801da177e4SLinus Torvalds return 0; 3081c0eae66eSBenny Halevy out_overflow: 3082c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3083c0eae66eSBenny Halevy return -EIO; 30841da177e4SLinus Torvalds } 30851da177e4SLinus Torvalds 3086256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 30871da177e4SLinus Torvalds { 30888687b63aSAl Viro __be32 *p; 30891da177e4SLinus Torvalds 3090c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3091c0eae66eSBenny Halevy if (unlikely(!p)) 3092c0eae66eSBenny Halevy goto out_overflow; 3093cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3094256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 30951da177e4SLinus Torvalds return 0; 3096c0eae66eSBenny Halevy out_overflow: 3097c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3098c0eae66eSBenny Halevy return -EIO; 30991da177e4SLinus Torvalds } 31001da177e4SLinus Torvalds 31011da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31021da177e4SLinus Torvalds { 31031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31043388bff5SRoman Borisov int ret; 31053388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31063388bff5SRoman Borisov if (unlikely(ret < 0)) 31073388bff5SRoman Borisov return ret; 31081da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31091da177e4SLinus Torvalds } else 3110dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3111dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3112dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31131da177e4SLinus Torvalds return 0; 31141da177e4SLinus Torvalds } 31151da177e4SLinus Torvalds 31161da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31171da177e4SLinus Torvalds { 31188687b63aSAl Viro __be32 *p; 3119409924e4STrond Myklebust int ret = 0; 31201da177e4SLinus Torvalds 31211da177e4SLinus Torvalds *type = 0; 31221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31231da177e4SLinus Torvalds return -EIO; 31241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3125c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3126c0eae66eSBenny Halevy if (unlikely(!p)) 3127c0eae66eSBenny Halevy goto out_overflow; 3128cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31291da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31303110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31311da177e4SLinus Torvalds return -EIO; 31321da177e4SLinus Torvalds } 31331da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3134409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 31351da177e4SLinus Torvalds } 3136bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3137409924e4STrond Myklebust return ret; 3138c0eae66eSBenny Halevy out_overflow: 3139c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3140c0eae66eSBenny Halevy return -EIO; 31411da177e4SLinus Torvalds } 31421da177e4SLinus Torvalds 3143264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3144264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3145264e6351SChuck Lever { 3146264e6351SChuck Lever __be32 *p; 3147264e6351SChuck Lever 3148264e6351SChuck Lever *type = 0; 3149264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3150264e6351SChuck Lever return -EIO; 3151264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3152264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3153264e6351SChuck Lever if (unlikely(!p)) 3154264e6351SChuck Lever goto out_overflow; 3155264e6351SChuck Lever *type = be32_to_cpup(p); 3156264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3157264e6351SChuck Lever } 3158264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3159264e6351SChuck Lever return 0; 3160264e6351SChuck Lever out_overflow: 3161264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3162264e6351SChuck Lever return -EIO; 3163264e6351SChuck Lever } 3164264e6351SChuck Lever 31651da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 31661da177e4SLinus Torvalds { 31678687b63aSAl Viro __be32 *p; 3168409924e4STrond Myklebust int ret = 0; 31691da177e4SLinus Torvalds 31701da177e4SLinus Torvalds *change = 0; 31711da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 31721da177e4SLinus Torvalds return -EIO; 31731da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3174c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3175c0eae66eSBenny Halevy if (unlikely(!p)) 3176c0eae66eSBenny Halevy goto out_overflow; 3177cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 31781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3179409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 31801da177e4SLinus Torvalds } 31813110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 31821da177e4SLinus Torvalds (unsigned long long)*change); 3183409924e4STrond Myklebust return ret; 3184c0eae66eSBenny Halevy out_overflow: 3185c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3186c0eae66eSBenny Halevy return -EIO; 31871da177e4SLinus Torvalds } 31881da177e4SLinus Torvalds 31891da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 31901da177e4SLinus Torvalds { 31918687b63aSAl Viro __be32 *p; 3192409924e4STrond Myklebust int ret = 0; 31931da177e4SLinus Torvalds 31941da177e4SLinus Torvalds *size = 0; 31951da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 31961da177e4SLinus Torvalds return -EIO; 31971da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3198c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3199c0eae66eSBenny Halevy if (unlikely(!p)) 3200c0eae66eSBenny Halevy goto out_overflow; 3201cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32021da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3203409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32041da177e4SLinus Torvalds } 32053110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3206409924e4STrond Myklebust return ret; 3207c0eae66eSBenny Halevy out_overflow: 3208c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3209c0eae66eSBenny Halevy return -EIO; 32101da177e4SLinus Torvalds } 32111da177e4SLinus Torvalds 32121da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32131da177e4SLinus Torvalds { 32148687b63aSAl Viro __be32 *p; 32151da177e4SLinus Torvalds 32161da177e4SLinus Torvalds *res = 0; 32171da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32181da177e4SLinus Torvalds return -EIO; 32191da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3220c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3221c0eae66eSBenny Halevy if (unlikely(!p)) 3222c0eae66eSBenny Halevy goto out_overflow; 3223cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32241da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32251da177e4SLinus Torvalds } 32263110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32271da177e4SLinus Torvalds return 0; 3228c0eae66eSBenny Halevy out_overflow: 3229c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3230c0eae66eSBenny Halevy return -EIO; 32311da177e4SLinus Torvalds } 32321da177e4SLinus Torvalds 32331da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32341da177e4SLinus Torvalds { 32358687b63aSAl Viro __be32 *p; 32361da177e4SLinus Torvalds 32371da177e4SLinus Torvalds *res = 0; 32381da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32391da177e4SLinus Torvalds return -EIO; 32401da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3241c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3242c0eae66eSBenny Halevy if (unlikely(!p)) 3243c0eae66eSBenny Halevy goto out_overflow; 3244cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32451da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 32461da177e4SLinus Torvalds } 32473110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 32481da177e4SLinus Torvalds return 0; 3249c0eae66eSBenny Halevy out_overflow: 3250c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3251c0eae66eSBenny Halevy return -EIO; 32521da177e4SLinus Torvalds } 32531da177e4SLinus Torvalds 32548b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 32551da177e4SLinus Torvalds { 32568687b63aSAl Viro __be32 *p; 3257409924e4STrond Myklebust int ret = 0; 32581da177e4SLinus Torvalds 32591da177e4SLinus Torvalds fsid->major = 0; 32601da177e4SLinus Torvalds fsid->minor = 0; 32611da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 32621da177e4SLinus Torvalds return -EIO; 32631da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3264c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3265c0eae66eSBenny Halevy if (unlikely(!p)) 3266c0eae66eSBenny Halevy goto out_overflow; 32673ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3268cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 32691da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3270409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 32711da177e4SLinus Torvalds } 32723110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 32731da177e4SLinus Torvalds (unsigned long long)fsid->major, 32741da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3275409924e4STrond Myklebust return ret; 3276c0eae66eSBenny Halevy out_overflow: 3277c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3278c0eae66eSBenny Halevy return -EIO; 32791da177e4SLinus Torvalds } 32801da177e4SLinus Torvalds 32811da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32821da177e4SLinus Torvalds { 32838687b63aSAl Viro __be32 *p; 32841da177e4SLinus Torvalds 32851da177e4SLinus Torvalds *res = 60; 32861da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 32871da177e4SLinus Torvalds return -EIO; 32881da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3289c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3290c0eae66eSBenny Halevy if (unlikely(!p)) 3291c0eae66eSBenny Halevy goto out_overflow; 3292cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32931da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 32941da177e4SLinus Torvalds } 32953110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 32961da177e4SLinus Torvalds return 0; 3297c0eae66eSBenny Halevy out_overflow: 3298c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3299c0eae66eSBenny Halevy return -EIO; 33001da177e4SLinus Torvalds } 33011da177e4SLinus Torvalds 3302ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3303ae42c70aSBryan Schumaker { 3304ae42c70aSBryan Schumaker __be32 *p; 3305ae42c70aSBryan Schumaker 3306ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3307ae42c70aSBryan Schumaker return -EIO; 3308ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3309ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3310ae42c70aSBryan Schumaker if (unlikely(!p)) 3311ae42c70aSBryan Schumaker goto out_overflow; 3312ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3313ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3314ae42c70aSBryan Schumaker } 3315ae42c70aSBryan Schumaker return 0; 3316ae42c70aSBryan Schumaker out_overflow: 3317ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3318ae42c70aSBryan Schumaker return -EIO; 3319ae42c70aSBryan Schumaker } 3320ae42c70aSBryan Schumaker 3321ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3322ae42c70aSBryan Schumaker { 3323ae42c70aSBryan Schumaker __be32 *p; 3324ae42c70aSBryan Schumaker int len; 3325ae42c70aSBryan Schumaker 33267ad07353STrond Myklebust if (fh != NULL) 3327ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3328ae42c70aSBryan Schumaker 3329ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3330ae42c70aSBryan Schumaker return -EIO; 3331ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3332ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3333ae42c70aSBryan Schumaker if (unlikely(!p)) 3334ae42c70aSBryan Schumaker goto out_overflow; 3335ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3336ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3337ae42c70aSBryan Schumaker return -EIO; 3338ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3339ae42c70aSBryan Schumaker if (unlikely(!p)) 3340ae42c70aSBryan Schumaker goto out_overflow; 33417ad07353STrond Myklebust if (fh != NULL) { 3342ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 33437ad07353STrond Myklebust fh->size = len; 33447ad07353STrond Myklebust } 3345ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3346ae42c70aSBryan Schumaker } 3347ae42c70aSBryan Schumaker return 0; 3348ae42c70aSBryan Schumaker out_overflow: 3349ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3350ae42c70aSBryan Schumaker return -EIO; 3351ae42c70aSBryan Schumaker } 3352ae42c70aSBryan Schumaker 33531da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33541da177e4SLinus Torvalds { 33558687b63aSAl Viro __be32 *p; 33561da177e4SLinus Torvalds 33571da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 33581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 33591da177e4SLinus Torvalds return -EIO; 33601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3361c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3362c0eae66eSBenny Halevy if (unlikely(!p)) 3363c0eae66eSBenny Halevy goto out_overflow; 3364cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33651da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 33661da177e4SLinus Torvalds } 33673110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 33681da177e4SLinus Torvalds return 0; 3369c0eae66eSBenny Halevy out_overflow: 3370c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3371c0eae66eSBenny Halevy return -EIO; 33721da177e4SLinus Torvalds } 33731da177e4SLinus Torvalds 33741da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 33751da177e4SLinus Torvalds { 33768687b63aSAl Viro __be32 *p; 3377409924e4STrond Myklebust int ret = 0; 33781da177e4SLinus Torvalds 33791da177e4SLinus Torvalds *fileid = 0; 33801da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 33811da177e4SLinus Torvalds return -EIO; 33821da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3383c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3384c0eae66eSBenny Halevy if (unlikely(!p)) 3385c0eae66eSBenny Halevy goto out_overflow; 3386cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 33871da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3388409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 33891da177e4SLinus Torvalds } 33903110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3391409924e4STrond Myklebust return ret; 3392c0eae66eSBenny Halevy out_overflow: 3393c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3394c0eae66eSBenny Halevy return -EIO; 33951da177e4SLinus Torvalds } 33961da177e4SLinus Torvalds 339799baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 339899baf625SManoj Naik { 33998687b63aSAl Viro __be32 *p; 3400409924e4STrond Myklebust int ret = 0; 340199baf625SManoj Naik 340299baf625SManoj Naik *fileid = 0; 340399baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 340499baf625SManoj Naik return -EIO; 340599baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3406c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3407c0eae66eSBenny Halevy if (unlikely(!p)) 3408c0eae66eSBenny Halevy goto out_overflow; 3409cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 341099baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 341128331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 341299baf625SManoj Naik } 34133110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3414409924e4STrond Myklebust return ret; 3415c0eae66eSBenny Halevy out_overflow: 3416c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3417c0eae66eSBenny Halevy return -EIO; 341899baf625SManoj Naik } 341999baf625SManoj Naik 34201da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34211da177e4SLinus Torvalds { 34228687b63aSAl Viro __be32 *p; 34231da177e4SLinus Torvalds int status = 0; 34241da177e4SLinus Torvalds 34251da177e4SLinus Torvalds *res = 0; 34261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34271da177e4SLinus Torvalds return -EIO; 34281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3429c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3430c0eae66eSBenny Halevy if (unlikely(!p)) 3431c0eae66eSBenny Halevy goto out_overflow; 3432cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34331da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34341da177e4SLinus Torvalds } 34353110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34361da177e4SLinus Torvalds return status; 3437c0eae66eSBenny Halevy out_overflow: 3438c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3439c0eae66eSBenny Halevy return -EIO; 34401da177e4SLinus Torvalds } 34411da177e4SLinus Torvalds 34421da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34431da177e4SLinus Torvalds { 34448687b63aSAl Viro __be32 *p; 34451da177e4SLinus Torvalds int status = 0; 34461da177e4SLinus Torvalds 34471da177e4SLinus Torvalds *res = 0; 34481da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 34491da177e4SLinus Torvalds return -EIO; 34501da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3451c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3452c0eae66eSBenny Halevy if (unlikely(!p)) 3453c0eae66eSBenny Halevy goto out_overflow; 3454cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34551da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 34561da177e4SLinus Torvalds } 34573110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 34581da177e4SLinus Torvalds return status; 3459c0eae66eSBenny Halevy out_overflow: 3460c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3461c0eae66eSBenny Halevy return -EIO; 34621da177e4SLinus Torvalds } 34631da177e4SLinus Torvalds 34641da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34651da177e4SLinus Torvalds { 34668687b63aSAl Viro __be32 *p; 34671da177e4SLinus Torvalds int status = 0; 34681da177e4SLinus Torvalds 34691da177e4SLinus Torvalds *res = 0; 34701da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 34711da177e4SLinus Torvalds return -EIO; 34721da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3473c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3474c0eae66eSBenny Halevy if (unlikely(!p)) 3475c0eae66eSBenny Halevy goto out_overflow; 3476cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34771da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 34781da177e4SLinus Torvalds } 34793110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 34801da177e4SLinus Torvalds return status; 3481c0eae66eSBenny Halevy out_overflow: 3482c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3483c0eae66eSBenny Halevy return -EIO; 34841da177e4SLinus Torvalds } 34851da177e4SLinus Torvalds 34867aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 34877aaa0b3bSManoj Naik { 3488464ad6b1SChuck Lever u32 n; 34898687b63aSAl Viro __be32 *p; 34907aaa0b3bSManoj Naik int status = 0; 34917aaa0b3bSManoj Naik 3492c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3493c0eae66eSBenny Halevy if (unlikely(!p)) 3494c0eae66eSBenny Halevy goto out_overflow; 3495cccddf4fSBenny Halevy n = be32_to_cpup(p); 349633a43f28SAndy Adamson if (n == 0) 349733a43f28SAndy Adamson goto root_path; 349802a2976cSChuck Lever dprintk("pathname4: "); 3499809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3500809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3501809b426cSTrond Myklebust goto out_eio; 3502809b426cSTrond Myklebust } 3503809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 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 } 35137aaa0b3bSManoj Naik out: 35147aaa0b3bSManoj Naik return status; 351533a43f28SAndy Adamson root_path: 351633a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 351733a43f28SAndy Adamson path->ncomponents = 1; 351833a43f28SAndy Adamson path->components[0].len=0; 351933a43f28SAndy Adamson path->components[0].data=NULL; 352002a2976cSChuck Lever dprintk("pathname4: /\n"); 352133a43f28SAndy Adamson goto out; 35227aaa0b3bSManoj Naik out_eio: 35237aaa0b3bSManoj Naik dprintk(" status %d", status); 35247aaa0b3bSManoj Naik status = -EIO; 35257aaa0b3bSManoj Naik goto out; 3526c0eae66eSBenny Halevy out_overflow: 3527c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3528c0eae66eSBenny Halevy return -EIO; 35297aaa0b3bSManoj Naik } 35307aaa0b3bSManoj Naik 35317aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3532683b57b4STrond Myklebust { 3533683b57b4STrond Myklebust int n; 35348687b63aSAl Viro __be32 *p; 3535683b57b4STrond Myklebust int status = -EIO; 3536683b57b4STrond Myklebust 3537683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3538683b57b4STrond Myklebust goto out; 3539683b57b4STrond Myklebust status = 0; 3540683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3541683b57b4STrond Myklebust goto out; 35428b7e3f49STrond Myklebust status = -EIO; 35438b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 35448b7e3f49STrond Myklebust if (unlikely(res == NULL)) 35458b7e3f49STrond Myklebust goto out; 354602a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 35477aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3548683b57b4STrond Myklebust if (unlikely(status != 0)) 3549683b57b4STrond Myklebust goto out; 3550c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3551c0eae66eSBenny Halevy if (unlikely(!p)) 3552c0eae66eSBenny Halevy goto out_overflow; 3553cccddf4fSBenny Halevy n = be32_to_cpup(p); 3554683b57b4STrond Myklebust if (n <= 0) 3555683b57b4STrond Myklebust goto out_eio; 3556809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3557464ad6b1SChuck Lever u32 m; 3558809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3559683b57b4STrond Myklebust 3560809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3561809b426cSTrond Myklebust break; 3562809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3563c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3564c0eae66eSBenny Halevy if (unlikely(!p)) 3565c0eae66eSBenny Halevy goto out_overflow; 3566cccddf4fSBenny Halevy m = be32_to_cpup(p); 35677aaa0b3bSManoj Naik 356802a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3569809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3570809b426cSTrond Myklebust struct nfs4_string *server; 3571809b426cSTrond Myklebust 3572809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3573464ad6b1SChuck Lever unsigned int i; 3574464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3575464ad6b1SChuck Lever "returned for location %u\n", 35763110ff80SHarvey Harrison __func__, 3577464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3578464ad6b1SChuck Lever m, res->nlocations); 35797aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 35802e42c3e2STrond Myklebust unsigned int len; 35817aaa0b3bSManoj Naik char *data; 35827aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3583683b57b4STrond Myklebust if (unlikely(status != 0)) 3584683b57b4STrond Myklebust goto out_eio; 35857aaa0b3bSManoj Naik } 3586809b426cSTrond Myklebust break; 35877aaa0b3bSManoj Naik } 3588809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3589809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3590809b426cSTrond Myklebust if (unlikely(status != 0)) 3591809b426cSTrond Myklebust goto out_eio; 3592809b426cSTrond Myklebust dprintk("%s ", server->data); 35937aaa0b3bSManoj Naik } 35947aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 35957aaa0b3bSManoj Naik if (unlikely(status != 0)) 35967aaa0b3bSManoj Naik goto out_eio; 3597683b57b4STrond Myklebust } 3598409924e4STrond Myklebust if (res->nlocations != 0) 359981934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3600683b57b4STrond Myklebust out: 36013110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3602683b57b4STrond Myklebust return status; 3603c0eae66eSBenny Halevy out_overflow: 3604c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3605683b57b4STrond Myklebust out_eio: 3606683b57b4STrond Myklebust status = -EIO; 3607683b57b4STrond Myklebust goto out; 3608683b57b4STrond Myklebust } 3609683b57b4STrond Myklebust 36101da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36111da177e4SLinus Torvalds { 36128687b63aSAl Viro __be32 *p; 36131da177e4SLinus Torvalds int status = 0; 36141da177e4SLinus Torvalds 36151da177e4SLinus Torvalds *res = 0; 36161da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36171da177e4SLinus Torvalds return -EIO; 36181da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3619c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3620c0eae66eSBenny Halevy if (unlikely(!p)) 3621c0eae66eSBenny Halevy goto out_overflow; 3622cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36231da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36241da177e4SLinus Torvalds } 36253110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36261da177e4SLinus Torvalds return status; 3627c0eae66eSBenny Halevy out_overflow: 3628c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3629c0eae66eSBenny Halevy return -EIO; 36301da177e4SLinus Torvalds } 36311da177e4SLinus Torvalds 36321da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36331da177e4SLinus Torvalds { 36348687b63aSAl Viro __be32 *p; 36351da177e4SLinus Torvalds int status = 0; 36361da177e4SLinus Torvalds 36371da177e4SLinus Torvalds *maxlink = 1; 36381da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 36391da177e4SLinus Torvalds return -EIO; 36401da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3641c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3642c0eae66eSBenny Halevy if (unlikely(!p)) 3643c0eae66eSBenny Halevy goto out_overflow; 3644cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 36451da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 36461da177e4SLinus Torvalds } 36473110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 36481da177e4SLinus Torvalds return status; 3649c0eae66eSBenny Halevy out_overflow: 3650c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3651c0eae66eSBenny Halevy return -EIO; 36521da177e4SLinus Torvalds } 36531da177e4SLinus Torvalds 36541da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 36551da177e4SLinus Torvalds { 36568687b63aSAl Viro __be32 *p; 36571da177e4SLinus Torvalds int status = 0; 36581da177e4SLinus Torvalds 36591da177e4SLinus Torvalds *maxname = 1024; 36601da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 36611da177e4SLinus Torvalds return -EIO; 36621da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3663c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3664c0eae66eSBenny Halevy if (unlikely(!p)) 3665c0eae66eSBenny Halevy goto out_overflow; 3666cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 36671da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 36681da177e4SLinus Torvalds } 36693110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 36701da177e4SLinus Torvalds return status; 3671c0eae66eSBenny Halevy out_overflow: 3672c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3673c0eae66eSBenny Halevy return -EIO; 36741da177e4SLinus Torvalds } 36751da177e4SLinus Torvalds 36761da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36771da177e4SLinus Torvalds { 36788687b63aSAl Viro __be32 *p; 36791da177e4SLinus Torvalds int status = 0; 36801da177e4SLinus Torvalds 36811da177e4SLinus Torvalds *res = 1024; 36821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 36831da177e4SLinus Torvalds return -EIO; 36841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 36851da177e4SLinus Torvalds uint64_t maxread; 3686c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3687c0eae66eSBenny Halevy if (unlikely(!p)) 3688c0eae66eSBenny Halevy goto out_overflow; 3689cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 36901da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 36911da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 36921da177e4SLinus Torvalds *res = (uint32_t)maxread; 36931da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 36941da177e4SLinus Torvalds } 36953110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 36961da177e4SLinus Torvalds return status; 3697c0eae66eSBenny Halevy out_overflow: 3698c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3699c0eae66eSBenny Halevy return -EIO; 37001da177e4SLinus Torvalds } 37011da177e4SLinus Torvalds 37021da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37031da177e4SLinus Torvalds { 37048687b63aSAl Viro __be32 *p; 37051da177e4SLinus Torvalds int status = 0; 37061da177e4SLinus Torvalds 37071da177e4SLinus Torvalds *res = 1024; 37081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37091da177e4SLinus Torvalds return -EIO; 37101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37111da177e4SLinus Torvalds uint64_t maxwrite; 3712c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3713c0eae66eSBenny Halevy if (unlikely(!p)) 3714c0eae66eSBenny Halevy goto out_overflow; 3715cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37161da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37171da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37181da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37191da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37201da177e4SLinus Torvalds } 37213110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37221da177e4SLinus Torvalds return status; 3723c0eae66eSBenny Halevy out_overflow: 3724c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3725c0eae66eSBenny Halevy return -EIO; 37261da177e4SLinus Torvalds } 37271da177e4SLinus Torvalds 3728bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37291da177e4SLinus Torvalds { 3730bca79478STrond Myklebust uint32_t tmp; 37318687b63aSAl Viro __be32 *p; 3732409924e4STrond Myklebust int ret = 0; 37331da177e4SLinus Torvalds 37341da177e4SLinus Torvalds *mode = 0; 37351da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 37361da177e4SLinus Torvalds return -EIO; 37371da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3738c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3739c0eae66eSBenny Halevy if (unlikely(!p)) 3740c0eae66eSBenny Halevy goto out_overflow; 3741cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3742bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 37431da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3744409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 37451da177e4SLinus Torvalds } 37463110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3747409924e4STrond Myklebust return ret; 3748c0eae66eSBenny Halevy out_overflow: 3749c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3750c0eae66eSBenny Halevy return -EIO; 37511da177e4SLinus Torvalds } 37521da177e4SLinus Torvalds 37531da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 37541da177e4SLinus Torvalds { 37558687b63aSAl Viro __be32 *p; 3756409924e4STrond Myklebust int ret = 0; 37571da177e4SLinus Torvalds 37581da177e4SLinus Torvalds *nlink = 1; 37591da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 37601da177e4SLinus Torvalds return -EIO; 37611da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3762c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3763c0eae66eSBenny Halevy if (unlikely(!p)) 3764c0eae66eSBenny Halevy goto out_overflow; 3765cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 37661da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3767409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 37681da177e4SLinus Torvalds } 37693110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3770409924e4STrond Myklebust return ret; 3771c0eae66eSBenny Halevy out_overflow: 3772c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3773c0eae66eSBenny Halevy return -EIO; 37741da177e4SLinus Torvalds } 37751da177e4SLinus Torvalds 377680e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3777e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 37786926afd1STrond Myklebust struct nfs4_string *owner_name) 37791da177e4SLinus Torvalds { 37808687b63aSAl Viro uint32_t len; 37818687b63aSAl Viro __be32 *p; 3782409924e4STrond Myklebust int ret = 0; 37831da177e4SLinus Torvalds 3784e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 37851da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 37861da177e4SLinus Torvalds return -EIO; 37871da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3788c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3789c0eae66eSBenny Halevy if (unlikely(!p)) 3790c0eae66eSBenny Halevy goto out_overflow; 3791cccddf4fSBenny Halevy len = be32_to_cpup(p); 3792c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3793c0eae66eSBenny Halevy if (unlikely(!p)) 3794c0eae66eSBenny Halevy goto out_overflow; 37956926afd1STrond Myklebust if (owner_name != NULL) { 37966926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 37976926afd1STrond Myklebust if (owner_name->data != NULL) { 37986926afd1STrond Myklebust owner_name->len = len; 37996926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38006926afd1STrond Myklebust } 380180e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3802e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3803409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3804409924e4STrond Myklebust else 38051da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38063110ff80SHarvey Harrison __func__); 38071da177e4SLinus Torvalds } else 3808fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38093110ff80SHarvey Harrison __func__, len); 38101da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38111da177e4SLinus Torvalds } 3812e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3813409924e4STrond Myklebust return ret; 3814c0eae66eSBenny Halevy out_overflow: 3815c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3816c0eae66eSBenny Halevy return -EIO; 38171da177e4SLinus Torvalds } 38181da177e4SLinus Torvalds 381980e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3820e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 38216926afd1STrond Myklebust struct nfs4_string *group_name) 38221da177e4SLinus Torvalds { 38238687b63aSAl Viro uint32_t len; 38248687b63aSAl Viro __be32 *p; 3825409924e4STrond Myklebust int ret = 0; 38261da177e4SLinus Torvalds 3827e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 38281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38291da177e4SLinus Torvalds return -EIO; 38301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3831c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3832c0eae66eSBenny Halevy if (unlikely(!p)) 3833c0eae66eSBenny Halevy goto out_overflow; 3834cccddf4fSBenny Halevy len = be32_to_cpup(p); 3835c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3836c0eae66eSBenny Halevy if (unlikely(!p)) 3837c0eae66eSBenny Halevy goto out_overflow; 38386926afd1STrond Myklebust if (group_name != NULL) { 38396926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 38406926afd1STrond Myklebust if (group_name->data != NULL) { 38416926afd1STrond Myklebust group_name->len = len; 38426926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 38436926afd1STrond Myklebust } 384480e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3845e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3846409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3847409924e4STrond Myklebust else 38481da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 38493110ff80SHarvey Harrison __func__); 38501da177e4SLinus Torvalds } else 3851fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38523110ff80SHarvey Harrison __func__, len); 38531da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 38541da177e4SLinus Torvalds } 3855e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3856409924e4STrond Myklebust return ret; 3857c0eae66eSBenny Halevy out_overflow: 3858c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3859c0eae66eSBenny Halevy return -EIO; 38601da177e4SLinus Torvalds } 38611da177e4SLinus Torvalds 38621da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 38631da177e4SLinus Torvalds { 38648687b63aSAl Viro uint32_t major = 0, minor = 0; 38658687b63aSAl Viro __be32 *p; 3866409924e4STrond Myklebust int ret = 0; 38671da177e4SLinus Torvalds 38681da177e4SLinus Torvalds *rdev = MKDEV(0,0); 38691da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 38701da177e4SLinus Torvalds return -EIO; 38711da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 38721da177e4SLinus Torvalds dev_t tmp; 38731da177e4SLinus Torvalds 3874c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3875c0eae66eSBenny Halevy if (unlikely(!p)) 3876c0eae66eSBenny Halevy goto out_overflow; 38776f723f77SBenny Halevy major = be32_to_cpup(p++); 3878cccddf4fSBenny Halevy minor = be32_to_cpup(p); 38791da177e4SLinus Torvalds tmp = MKDEV(major, minor); 38801da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 38811da177e4SLinus Torvalds *rdev = tmp; 38821da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3883409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 38841da177e4SLinus Torvalds } 38853110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3886409924e4STrond Myklebust return ret; 3887c0eae66eSBenny Halevy out_overflow: 3888c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3889c0eae66eSBenny Halevy return -EIO; 38901da177e4SLinus Torvalds } 38911da177e4SLinus Torvalds 38921da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 38931da177e4SLinus Torvalds { 38948687b63aSAl Viro __be32 *p; 38951da177e4SLinus Torvalds int status = 0; 38961da177e4SLinus Torvalds 38971da177e4SLinus Torvalds *res = 0; 38981da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 38991da177e4SLinus Torvalds return -EIO; 39001da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3901c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3902c0eae66eSBenny Halevy if (unlikely(!p)) 3903c0eae66eSBenny Halevy goto out_overflow; 3904cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39051da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39061da177e4SLinus Torvalds } 39073110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39081da177e4SLinus Torvalds return status; 3909c0eae66eSBenny Halevy out_overflow: 3910c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3911c0eae66eSBenny Halevy return -EIO; 39121da177e4SLinus Torvalds } 39131da177e4SLinus Torvalds 39141da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39151da177e4SLinus Torvalds { 39168687b63aSAl Viro __be32 *p; 39171da177e4SLinus Torvalds int status = 0; 39181da177e4SLinus Torvalds 39191da177e4SLinus Torvalds *res = 0; 39201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39211da177e4SLinus Torvalds return -EIO; 39221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3923c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3924c0eae66eSBenny Halevy if (unlikely(!p)) 3925c0eae66eSBenny Halevy goto out_overflow; 3926cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39271da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39281da177e4SLinus Torvalds } 39293110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39301da177e4SLinus Torvalds return status; 3931c0eae66eSBenny Halevy out_overflow: 3932c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3933c0eae66eSBenny Halevy return -EIO; 39341da177e4SLinus Torvalds } 39351da177e4SLinus Torvalds 39361da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39371da177e4SLinus Torvalds { 39388687b63aSAl Viro __be32 *p; 39391da177e4SLinus Torvalds int status = 0; 39401da177e4SLinus Torvalds 39411da177e4SLinus Torvalds *res = 0; 39421da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 39431da177e4SLinus Torvalds return -EIO; 39441da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3945c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3946c0eae66eSBenny Halevy if (unlikely(!p)) 3947c0eae66eSBenny Halevy goto out_overflow; 3948cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39491da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 39501da177e4SLinus Torvalds } 39513110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 39521da177e4SLinus Torvalds return status; 3953c0eae66eSBenny Halevy out_overflow: 3954c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3955c0eae66eSBenny Halevy return -EIO; 39561da177e4SLinus Torvalds } 39571da177e4SLinus Torvalds 39581da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 39591da177e4SLinus Torvalds { 39608687b63aSAl Viro __be32 *p; 3961409924e4STrond Myklebust int ret = 0; 39621da177e4SLinus Torvalds 39631da177e4SLinus Torvalds *used = 0; 39641da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 39651da177e4SLinus Torvalds return -EIO; 39661da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3967c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3968c0eae66eSBenny Halevy if (unlikely(!p)) 3969c0eae66eSBenny Halevy goto out_overflow; 3970cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 39711da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3972409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 39731da177e4SLinus Torvalds } 39743110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 39751da177e4SLinus Torvalds (unsigned long long)*used); 3976409924e4STrond Myklebust return ret; 3977c0eae66eSBenny Halevy out_overflow: 3978c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3979c0eae66eSBenny Halevy return -EIO; 39801da177e4SLinus Torvalds } 39811da177e4SLinus Torvalds 39821da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 39831da177e4SLinus Torvalds { 39848687b63aSAl Viro __be32 *p; 39851da177e4SLinus Torvalds uint64_t sec; 39861da177e4SLinus Torvalds uint32_t nsec; 39871da177e4SLinus Torvalds 3988c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3989c0eae66eSBenny Halevy if (unlikely(!p)) 3990c0eae66eSBenny Halevy goto out_overflow; 39913ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3992cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 39931da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 39941da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 39951da177e4SLinus Torvalds return 0; 3996c0eae66eSBenny Halevy out_overflow: 3997c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3998c0eae66eSBenny Halevy return -EIO; 39991da177e4SLinus Torvalds } 40001da177e4SLinus Torvalds 40011da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40021da177e4SLinus Torvalds { 40031da177e4SLinus Torvalds int status = 0; 40041da177e4SLinus Torvalds 40051da177e4SLinus Torvalds time->tv_sec = 0; 40061da177e4SLinus Torvalds time->tv_nsec = 0; 40071da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40081da177e4SLinus Torvalds return -EIO; 40091da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40101da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4011409924e4STrond Myklebust if (status == 0) 4012409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40131da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40141da177e4SLinus Torvalds } 40153110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40161da177e4SLinus Torvalds return status; 40171da177e4SLinus Torvalds } 40181da177e4SLinus Torvalds 40191da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40201da177e4SLinus Torvalds { 40211da177e4SLinus Torvalds int status = 0; 40221da177e4SLinus Torvalds 40231da177e4SLinus Torvalds time->tv_sec = 0; 40241da177e4SLinus Torvalds time->tv_nsec = 0; 40251da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40261da177e4SLinus Torvalds return -EIO; 40271da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40281da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4029409924e4STrond Myklebust if (status == 0) 4030409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40311da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40321da177e4SLinus Torvalds } 40333110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40341da177e4SLinus Torvalds return status; 40351da177e4SLinus Torvalds } 40361da177e4SLinus Torvalds 403755b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 403855b6e774SRicardo Labiaga struct timespec *time) 403955b6e774SRicardo Labiaga { 404055b6e774SRicardo Labiaga int status = 0; 404155b6e774SRicardo Labiaga 404255b6e774SRicardo Labiaga time->tv_sec = 0; 404355b6e774SRicardo Labiaga time->tv_nsec = 0; 404455b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 404555b6e774SRicardo Labiaga return -EIO; 404655b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 404755b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 404855b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 404955b6e774SRicardo Labiaga } 405055b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 405155b6e774SRicardo Labiaga (long)time->tv_nsec); 405255b6e774SRicardo Labiaga return status; 405355b6e774SRicardo Labiaga } 405455b6e774SRicardo Labiaga 40551da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40561da177e4SLinus Torvalds { 40571da177e4SLinus Torvalds int status = 0; 40581da177e4SLinus Torvalds 40591da177e4SLinus Torvalds time->tv_sec = 0; 40601da177e4SLinus Torvalds time->tv_nsec = 0; 40611da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 40621da177e4SLinus Torvalds return -EIO; 40631da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 40641da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4065409924e4STrond Myklebust if (status == 0) 4066409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 40671da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 40681da177e4SLinus Torvalds } 40693110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 40701da177e4SLinus Torvalds return status; 40711da177e4SLinus Torvalds } 40721da177e4SLinus Torvalds 4073256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 40741da177e4SLinus Torvalds { 40751da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4076256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 40771da177e4SLinus Torvalds 40781da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4079fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4080fe82a183SChuck Lever "%u %c %u\n", 40813110ff80SHarvey Harrison __func__, 40821da177e4SLinus Torvalds attrwords << 2, 40831da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 40841da177e4SLinus Torvalds nwords << 2); 40851da177e4SLinus Torvalds return -EIO; 40861da177e4SLinus Torvalds } 40871da177e4SLinus Torvalds return 0; 40881da177e4SLinus Torvalds } 40891da177e4SLinus Torvalds 40901da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40911da177e4SLinus Torvalds { 40928687b63aSAl Viro __be32 *p; 40931da177e4SLinus Torvalds 4094c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4095c0eae66eSBenny Halevy if (unlikely(!p)) 4096c0eae66eSBenny Halevy goto out_overflow; 40976f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 40983ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4099cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 41001da177e4SLinus Torvalds return 0; 4101c0eae66eSBenny Halevy out_overflow: 4102c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4103c0eae66eSBenny Halevy return -EIO; 41041da177e4SLinus Torvalds } 41051da177e4SLinus Torvalds 41066168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 41071da177e4SLinus Torvalds { 41088687b63aSAl Viro __be32 *p; 41091da177e4SLinus Torvalds uint32_t supp, acc; 41101da177e4SLinus Torvalds int status; 41111da177e4SLinus Torvalds 41121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41131da177e4SLinus Torvalds if (status) 41141da177e4SLinus Torvalds return status; 4115c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4116c0eae66eSBenny Halevy if (unlikely(!p)) 4117c0eae66eSBenny Halevy goto out_overflow; 41186f723f77SBenny Halevy supp = be32_to_cpup(p++); 4119cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41206168f62cSWeston Andros Adamson *supported = supp; 41216168f62cSWeston Andros Adamson *access = acc; 41221da177e4SLinus Torvalds return 0; 4123c0eae66eSBenny Halevy out_overflow: 4124c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4125c0eae66eSBenny Halevy return -EIO; 41261da177e4SLinus Torvalds } 41271da177e4SLinus Torvalds 412807d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41291da177e4SLinus Torvalds { 41308687b63aSAl Viro __be32 *p; 413107d30434SBenny Halevy 413207d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 413307d30434SBenny Halevy if (likely(p)) { 413407d30434SBenny Halevy memcpy(buf, p, len); 413507d30434SBenny Halevy return 0; 413607d30434SBenny Halevy } 413707d30434SBenny Halevy print_overflow_msg(__func__, xdr); 413807d30434SBenny Halevy return -EIO; 413907d30434SBenny Halevy } 414007d30434SBenny Halevy 414107d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 414207d30434SBenny Halevy { 41432d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 41441da177e4SLinus Torvalds } 41451da177e4SLinus Torvalds 41461da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 41471da177e4SLinus Torvalds { 41481da177e4SLinus Torvalds int status; 41491da177e4SLinus Torvalds 41501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4151c1d51931STrond Myklebust if (status != -EIO) 4152c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 415307d30434SBenny Halevy if (!status) 415407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41551da177e4SLinus Torvalds return status; 41561da177e4SLinus Torvalds } 41571da177e4SLinus Torvalds 4158db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4159db942bbdSBenny Halevy { 4160cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 41611da177e4SLinus Torvalds } 41621da177e4SLinus Torvalds 41632f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 41642f2c63bcSTrond Myklebust { 41652f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 41662f2c63bcSTrond Myklebust } 41672f2c63bcSTrond Myklebust 41680b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 41691da177e4SLinus Torvalds { 41701da177e4SLinus Torvalds int status; 41711da177e4SLinus Torvalds 41721da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4173db942bbdSBenny Halevy if (!status) 41742f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 41751da177e4SLinus Torvalds return status; 41761da177e4SLinus Torvalds } 41771da177e4SLinus Torvalds 41781da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41791da177e4SLinus Torvalds { 41808687b63aSAl Viro __be32 *p; 41811da177e4SLinus Torvalds uint32_t bmlen; 41821da177e4SLinus Torvalds int status; 41831da177e4SLinus Torvalds 41841da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 41851da177e4SLinus Torvalds if (status) 41861da177e4SLinus Torvalds return status; 41871da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 41881da177e4SLinus Torvalds return status; 4189c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4190c0eae66eSBenny Halevy if (unlikely(!p)) 4191c0eae66eSBenny Halevy goto out_overflow; 4192cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4193c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4194c0eae66eSBenny Halevy if (likely(p)) 41951da177e4SLinus Torvalds return 0; 4196c0eae66eSBenny Halevy out_overflow: 4197c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4198c0eae66eSBenny Halevy return -EIO; 41991da177e4SLinus Torvalds } 42001da177e4SLinus Torvalds 42011da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 42021da177e4SLinus Torvalds { 4203256e48bbSTrond Myklebust unsigned int savep; 4204dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42051da177e4SLinus Torvalds int status; 42061da177e4SLinus Torvalds 42071da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42081da177e4SLinus Torvalds goto xdr_error; 42091da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42101da177e4SLinus Torvalds goto xdr_error; 42111da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42121da177e4SLinus Torvalds goto xdr_error; 42131da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42141da177e4SLinus Torvalds goto xdr_error; 4215264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4216264e6351SChuck Lever &res->fh_expire_type)) != 0) 4217264e6351SChuck Lever goto xdr_error; 42181da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42191da177e4SLinus Torvalds goto xdr_error; 42201da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42211da177e4SLinus Torvalds goto xdr_error; 42221da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42231da177e4SLinus Torvalds goto xdr_error; 42241da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42251da177e4SLinus Torvalds xdr_error: 42263110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42271da177e4SLinus Torvalds return status; 42281da177e4SLinus Torvalds } 42291da177e4SLinus Torvalds 42301da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42311da177e4SLinus Torvalds { 4232256e48bbSTrond Myklebust unsigned int savep; 4233dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42341da177e4SLinus Torvalds int status; 42351da177e4SLinus Torvalds 42361da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42371da177e4SLinus Torvalds goto xdr_error; 42381da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42391da177e4SLinus Torvalds goto xdr_error; 42401da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42411da177e4SLinus Torvalds goto xdr_error; 42421da177e4SLinus Torvalds 42431da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 42441da177e4SLinus Torvalds goto xdr_error; 42451da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 42461da177e4SLinus Torvalds goto xdr_error; 42471da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 42481da177e4SLinus Torvalds goto xdr_error; 42491da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 42501da177e4SLinus Torvalds goto xdr_error; 42511da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 42521da177e4SLinus Torvalds goto xdr_error; 42531da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 42541da177e4SLinus Torvalds goto xdr_error; 42551da177e4SLinus Torvalds 42561da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42571da177e4SLinus Torvalds xdr_error: 42583110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42591da177e4SLinus Torvalds return status; 42601da177e4SLinus Torvalds } 42611da177e4SLinus Torvalds 42621da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 42631da177e4SLinus Torvalds { 4264256e48bbSTrond Myklebust unsigned int savep; 4265dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42661da177e4SLinus Torvalds int status; 42671da177e4SLinus Torvalds 42681da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42691da177e4SLinus Torvalds goto xdr_error; 42701da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42711da177e4SLinus Torvalds goto xdr_error; 42721da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42731da177e4SLinus Torvalds goto xdr_error; 42741da177e4SLinus Torvalds 42751da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 42761da177e4SLinus Torvalds goto xdr_error; 42771da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 42781da177e4SLinus Torvalds goto xdr_error; 42791da177e4SLinus Torvalds 42801da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42811da177e4SLinus Torvalds xdr_error: 42823110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42831da177e4SLinus Torvalds return status; 42841da177e4SLinus Torvalds } 42851da177e4SLinus Torvalds 428688034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 428788034c3dSAndy Adamson uint32_t *bitmap, 428888034c3dSAndy Adamson uint64_t *res, 428988034c3dSAndy Adamson uint32_t hint_bit) 429088034c3dSAndy Adamson { 429188034c3dSAndy Adamson __be32 *p; 429288034c3dSAndy Adamson 429388034c3dSAndy Adamson *res = 0; 429488034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 429588034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 429688034c3dSAndy Adamson if (unlikely(!p)) 429788034c3dSAndy Adamson goto out_overflow; 429888034c3dSAndy Adamson xdr_decode_hyper(p, res); 429988034c3dSAndy Adamson } 430088034c3dSAndy Adamson return 0; 430188034c3dSAndy Adamson out_overflow: 430288034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 430388034c3dSAndy Adamson return -EIO; 430488034c3dSAndy Adamson } 430588034c3dSAndy Adamson 430688034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 430788034c3dSAndy Adamson struct nfs4_threshold *res) 430888034c3dSAndy Adamson { 4309256e48bbSTrond Myklebust __be32 *p; 4310256e48bbSTrond Myklebust unsigned int savep; 431188034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 431288034c3dSAndy Adamson int status; 431388034c3dSAndy Adamson 431488034c3dSAndy Adamson /* layout type */ 431588034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 431688034c3dSAndy Adamson if (unlikely(!p)) { 431788034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 431888034c3dSAndy Adamson return -EIO; 431988034c3dSAndy Adamson } 432088034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 432188034c3dSAndy Adamson 432288034c3dSAndy Adamson /* thi_hintset bitmap */ 432388034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 432488034c3dSAndy Adamson if (status < 0) 432588034c3dSAndy Adamson goto xdr_error; 432688034c3dSAndy Adamson 432788034c3dSAndy Adamson /* thi_hintlist length */ 432888034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 432988034c3dSAndy Adamson if (status < 0) 433088034c3dSAndy Adamson goto xdr_error; 433188034c3dSAndy Adamson /* thi_hintlist */ 433288034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 433388034c3dSAndy Adamson if (status < 0) 433488034c3dSAndy Adamson goto xdr_error; 433588034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 433688034c3dSAndy Adamson if (status < 0) 433788034c3dSAndy Adamson goto xdr_error; 433888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 433988034c3dSAndy Adamson THRESHOLD_RD_IO); 434088034c3dSAndy Adamson if (status < 0) 434188034c3dSAndy Adamson goto xdr_error; 434288034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 434388034c3dSAndy Adamson THRESHOLD_WR_IO); 434488034c3dSAndy Adamson if (status < 0) 434588034c3dSAndy Adamson goto xdr_error; 434688034c3dSAndy Adamson 434788034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 434888034c3dSAndy Adamson res->bm = bitmap[0]; 434988034c3dSAndy Adamson 435088034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 435188034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 435288034c3dSAndy Adamson res->wr_io_sz); 435388034c3dSAndy Adamson xdr_error: 435488034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 435588034c3dSAndy Adamson return status; 435688034c3dSAndy Adamson } 435788034c3dSAndy Adamson 435888034c3dSAndy Adamson /* 435988034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 436088034c3dSAndy Adamson */ 436188034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 436288034c3dSAndy Adamson uint32_t *bitmap, 436388034c3dSAndy Adamson struct nfs4_threshold *res) 436488034c3dSAndy Adamson { 436588034c3dSAndy Adamson __be32 *p; 436688034c3dSAndy Adamson int status = 0; 436788034c3dSAndy Adamson uint32_t num; 436888034c3dSAndy Adamson 436988034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 437088034c3dSAndy Adamson return -EIO; 4371029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 43721549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 43731549210fSTrond Myklebust if (unlikely(res == NULL)) 43741549210fSTrond Myklebust return -EREMOTEIO; 437588034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 437688034c3dSAndy Adamson if (unlikely(!p)) 437788034c3dSAndy Adamson goto out_overflow; 437888034c3dSAndy Adamson num = be32_to_cpup(p); 437988034c3dSAndy Adamson if (num == 0) 438088034c3dSAndy Adamson return 0; 438188034c3dSAndy Adamson if (num > 1) 438288034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 438388034c3dSAndy Adamson "drivers per filesystem not supported\n", 438488034c3dSAndy Adamson __func__); 438588034c3dSAndy Adamson 438688034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4387029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 438888034c3dSAndy Adamson } 438988034c3dSAndy Adamson return status; 439088034c3dSAndy Adamson out_overflow: 439188034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 439288034c3dSAndy Adamson return -EIO; 439388034c3dSAndy Adamson } 439488034c3dSAndy Adamson 4395ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4396ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 43978b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 43986926afd1STrond Myklebust const struct nfs_server *server) 43991da177e4SLinus Torvalds { 4400bca79478STrond Myklebust int status; 4401bca79478STrond Myklebust umode_t fmode = 0; 4402ae42c70aSBryan Schumaker uint32_t type; 4403ee7b75fcSTrond Myklebust int32_t err; 44041da177e4SLinus Torvalds 4405f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4406f26c7a78STrond Myklebust if (status < 0) 44071da177e4SLinus Torvalds goto xdr_error; 4408409924e4STrond Myklebust fattr->mode = 0; 4409409924e4STrond Myklebust if (status != 0) { 4410409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4411409924e4STrond Myklebust fattr->valid |= status; 4412409924e4STrond Myklebust } 44131da177e4SLinus Torvalds 4414f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4415f26c7a78STrond Myklebust if (status < 0) 44161da177e4SLinus Torvalds goto xdr_error; 4417409924e4STrond Myklebust fattr->valid |= status; 4418f26c7a78STrond Myklebust 4419f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4420f26c7a78STrond Myklebust if (status < 0) 44211da177e4SLinus Torvalds goto xdr_error; 4422409924e4STrond Myklebust fattr->valid |= status; 4423f26c7a78STrond Myklebust 4424f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4425f26c7a78STrond Myklebust if (status < 0) 44261da177e4SLinus Torvalds goto xdr_error; 4427409924e4STrond Myklebust fattr->valid |= status; 4428f26c7a78STrond Myklebust 4429ee7b75fcSTrond Myklebust err = 0; 4430ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4431ae42c70aSBryan Schumaker if (status < 0) 4432ae42c70aSBryan Schumaker goto xdr_error; 4433ae42c70aSBryan Schumaker 4434ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4435ae42c70aSBryan Schumaker if (status < 0) 4436ae42c70aSBryan Schumaker goto xdr_error; 4437ae42c70aSBryan Schumaker 4438f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4439f26c7a78STrond Myklebust if (status < 0) 44401da177e4SLinus Torvalds goto xdr_error; 4441409924e4STrond Myklebust fattr->valid |= status; 4442f26c7a78STrond Myklebust 44438b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4444f26c7a78STrond Myklebust if (status < 0) 4445683b57b4STrond Myklebust goto xdr_error; 4446409924e4STrond Myklebust fattr->valid |= status; 4447f26c7a78STrond Myklebust 4448f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4449f26c7a78STrond Myklebust if (status < 0) 44501da177e4SLinus Torvalds goto xdr_error; 4451409924e4STrond Myklebust if (status != 0) { 44521da177e4SLinus Torvalds fattr->mode |= fmode; 4453409924e4STrond Myklebust fattr->valid |= status; 4454409924e4STrond Myklebust } 4455f26c7a78STrond Myklebust 4456f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4457f26c7a78STrond Myklebust if (status < 0) 44581da177e4SLinus Torvalds goto xdr_error; 4459409924e4STrond Myklebust fattr->valid |= status; 4460f26c7a78STrond Myklebust 44616926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4462f26c7a78STrond Myklebust if (status < 0) 44631da177e4SLinus Torvalds goto xdr_error; 4464409924e4STrond Myklebust fattr->valid |= status; 4465f26c7a78STrond Myklebust 44666926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4467f26c7a78STrond Myklebust if (status < 0) 44681da177e4SLinus Torvalds goto xdr_error; 4469409924e4STrond Myklebust fattr->valid |= status; 4470f26c7a78STrond Myklebust 4471f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4472f26c7a78STrond Myklebust if (status < 0) 44731da177e4SLinus Torvalds goto xdr_error; 4474409924e4STrond Myklebust fattr->valid |= status; 4475f26c7a78STrond Myklebust 4476f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4477f26c7a78STrond Myklebust if (status < 0) 44781da177e4SLinus Torvalds goto xdr_error; 4479409924e4STrond Myklebust fattr->valid |= status; 4480f26c7a78STrond Myklebust 4481f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4482f26c7a78STrond Myklebust if (status < 0) 44831da177e4SLinus Torvalds goto xdr_error; 4484409924e4STrond Myklebust fattr->valid |= status; 4485f26c7a78STrond Myklebust 4486f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4487f26c7a78STrond Myklebust if (status < 0) 44881da177e4SLinus Torvalds goto xdr_error; 4489409924e4STrond Myklebust fattr->valid |= status; 4490f26c7a78STrond Myklebust 4491f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4492f26c7a78STrond Myklebust if (status < 0) 44931da177e4SLinus Torvalds goto xdr_error; 4494409924e4STrond Myklebust fattr->valid |= status; 4495f26c7a78STrond Myklebust 449628331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4497f26c7a78STrond Myklebust if (status < 0) 449899baf625SManoj Naik goto xdr_error; 4499409924e4STrond Myklebust fattr->valid |= status; 4500f26c7a78STrond Myklebust 450188034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 450288034c3dSAndy Adamson if (status < 0) 450388034c3dSAndy Adamson goto xdr_error; 450488034c3dSAndy Adamson 4505ae42c70aSBryan Schumaker xdr_error: 4506ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4507ae42c70aSBryan Schumaker return status; 4508ae42c70aSBryan Schumaker } 4509ae42c70aSBryan Schumaker 4510ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45118b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 45128b7e3f49STrond Myklebust const struct nfs_server *server) 4513ae42c70aSBryan Schumaker { 4514256e48bbSTrond Myklebust unsigned int savep; 4515ae42c70aSBryan Schumaker uint32_t attrlen, 4516dae100c2SFred Isaman bitmap[3] = {0}; 4517ae42c70aSBryan Schumaker int status; 4518ae42c70aSBryan Schumaker 4519ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4520ae42c70aSBryan Schumaker if (status < 0) 4521ae42c70aSBryan Schumaker goto xdr_error; 4522ae42c70aSBryan Schumaker 4523ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4524ae42c70aSBryan Schumaker if (status < 0) 4525ae42c70aSBryan Schumaker goto xdr_error; 4526ae42c70aSBryan Schumaker 4527ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4528ae42c70aSBryan Schumaker if (status < 0) 4529ae42c70aSBryan Schumaker goto xdr_error; 4530ae42c70aSBryan Schumaker 45318b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4532ae42c70aSBryan Schumaker if (status < 0) 4533ae42c70aSBryan Schumaker goto xdr_error; 4534ae42c70aSBryan Schumaker 4535f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 45361da177e4SLinus Torvalds xdr_error: 45373110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 45381da177e4SLinus Torvalds return status; 45391da177e4SLinus Torvalds } 45401da177e4SLinus Torvalds 4541ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45426926afd1STrond Myklebust const struct nfs_server *server) 4543ae42c70aSBryan Schumaker { 45448b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4545ae42c70aSBryan Schumaker } 45461da177e4SLinus Torvalds 4547504913fbSAndy Adamson /* 4548504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4549504913fbSAndy Adamson * one layout driver per file system. 4550504913fbSAndy Adamson */ 4551504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4552504913fbSAndy Adamson uint32_t *layouttype) 4553504913fbSAndy Adamson { 4554504913fbSAndy Adamson uint32_t *p; 4555504913fbSAndy Adamson int num; 4556504913fbSAndy Adamson 4557504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4558504913fbSAndy Adamson if (unlikely(!p)) 4559504913fbSAndy Adamson goto out_overflow; 4560504913fbSAndy Adamson num = be32_to_cpup(p); 4561504913fbSAndy Adamson 4562504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4563504913fbSAndy Adamson if (num == 0) { 4564504913fbSAndy Adamson *layouttype = 0; 4565504913fbSAndy Adamson return 0; 4566504913fbSAndy Adamson } 4567504913fbSAndy Adamson if (num > 1) 4568a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4569a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4570504913fbSAndy Adamson 4571504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4572504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4573504913fbSAndy Adamson if (unlikely(!p)) 4574504913fbSAndy Adamson goto out_overflow; 4575504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4576504913fbSAndy Adamson return 0; 4577504913fbSAndy Adamson out_overflow: 4578504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4579504913fbSAndy Adamson return -EIO; 4580504913fbSAndy Adamson } 4581504913fbSAndy Adamson 4582504913fbSAndy Adamson /* 4583504913fbSAndy Adamson * The type of file system exported. 4584504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4585504913fbSAndy Adamson */ 4586504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4587504913fbSAndy Adamson uint32_t *layouttype) 4588504913fbSAndy Adamson { 4589504913fbSAndy Adamson int status = 0; 4590504913fbSAndy Adamson 4591504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4592504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4593504913fbSAndy Adamson return -EIO; 4594504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4595504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4596504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4597504913fbSAndy Adamson } else 4598504913fbSAndy Adamson *layouttype = 0; 4599504913fbSAndy Adamson return status; 4600504913fbSAndy Adamson } 4601504913fbSAndy Adamson 4602dae100c2SFred Isaman /* 4603dae100c2SFred Isaman * The prefered block size for layout directed io 4604dae100c2SFred Isaman */ 4605dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4606dae100c2SFred Isaman uint32_t *res) 4607dae100c2SFred Isaman { 4608dae100c2SFred Isaman __be32 *p; 4609dae100c2SFred Isaman 4610dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4611dae100c2SFred Isaman *res = 0; 4612dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4613dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4614dae100c2SFred Isaman if (unlikely(!p)) { 4615dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4616dae100c2SFred Isaman return -EIO; 4617dae100c2SFred Isaman } 4618dae100c2SFred Isaman *res = be32_to_cpup(p); 4619dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4620dae100c2SFred Isaman } 4621dae100c2SFred Isaman return 0; 4622dae100c2SFred Isaman } 4623dae100c2SFred Isaman 46241da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 46251da177e4SLinus Torvalds { 4626256e48bbSTrond Myklebust unsigned int savep; 4627dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 46281da177e4SLinus Torvalds int status; 46291da177e4SLinus Torvalds 46301da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 46311da177e4SLinus Torvalds goto xdr_error; 46321da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 46331da177e4SLinus Torvalds goto xdr_error; 46341da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 46351da177e4SLinus Torvalds goto xdr_error; 46361da177e4SLinus Torvalds 46371da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 46381da177e4SLinus Torvalds 46391da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 46401da177e4SLinus Torvalds goto xdr_error; 46411da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 46421da177e4SLinus Torvalds goto xdr_error; 46431da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 46441da177e4SLinus Torvalds goto xdr_error; 46451da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 46461da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 46471da177e4SLinus Torvalds goto xdr_error; 46481da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 464955b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 465055b6e774SRicardo Labiaga if (status != 0) 465155b6e774SRicardo Labiaga goto xdr_error; 4652504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4653504913fbSAndy Adamson if (status != 0) 4654504913fbSAndy Adamson goto xdr_error; 4655dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4656dae100c2SFred Isaman if (status) 4657dae100c2SFred Isaman goto xdr_error; 46581da177e4SLinus Torvalds 46591da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46601da177e4SLinus Torvalds xdr_error: 46613110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46621da177e4SLinus Torvalds return status; 46631da177e4SLinus Torvalds } 46641da177e4SLinus Torvalds 46651da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46661da177e4SLinus Torvalds { 46678687b63aSAl Viro __be32 *p; 46681da177e4SLinus Torvalds uint32_t len; 46691da177e4SLinus Torvalds int status; 46701da177e4SLinus Torvalds 46719936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46729936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46739936781dSTrond Myklebust 46741da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46751da177e4SLinus Torvalds if (status) 46761da177e4SLinus Torvalds return status; 46771da177e4SLinus Torvalds 4678c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4679c0eae66eSBenny Halevy if (unlikely(!p)) 4680c0eae66eSBenny Halevy goto out_overflow; 4681cccddf4fSBenny Halevy len = be32_to_cpup(p); 46821da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46831da177e4SLinus Torvalds return -EIO; 46841da177e4SLinus Torvalds fh->size = len; 4685c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4686c0eae66eSBenny Halevy if (unlikely(!p)) 4687c0eae66eSBenny Halevy goto out_overflow; 468899398d06SBenny Halevy memcpy(fh->data, p, len); 46891da177e4SLinus Torvalds return 0; 4690c0eae66eSBenny Halevy out_overflow: 4691c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4692c0eae66eSBenny Halevy return -EIO; 46931da177e4SLinus Torvalds } 46941da177e4SLinus Torvalds 46951da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 46961da177e4SLinus Torvalds { 46971da177e4SLinus Torvalds int status; 46981da177e4SLinus Torvalds 46991da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 47001da177e4SLinus Torvalds if (status) 47011da177e4SLinus Torvalds return status; 47021da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 47031da177e4SLinus Torvalds } 47041da177e4SLinus Torvalds 47051da177e4SLinus Torvalds /* 47061da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 47071da177e4SLinus Torvalds */ 4708911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 47091da177e4SLinus Torvalds { 4710911d1aafSTrond Myklebust uint64_t offset, length, clientid; 47118687b63aSAl Viro __be32 *p; 4712911d1aafSTrond Myklebust uint32_t namelen, type; 47131da177e4SLinus Torvalds 4714babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4715c0eae66eSBenny Halevy if (unlikely(!p)) 4716c0eae66eSBenny Halevy goto out_overflow; 4717babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 47183ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4719babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4720babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4721911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4722911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4723911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4724911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4725911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4726911d1aafSTrond Myklebust if (type & 1) 4727911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4728911d1aafSTrond Myklebust fl->fl_pid = 0; 4729911d1aafSTrond Myklebust } 4730babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4731babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4732babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4733c0eae66eSBenny Halevy if (likely(p)) 47341da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4735c0eae66eSBenny Halevy out_overflow: 4736c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4737c0eae66eSBenny Halevy return -EIO; 47381da177e4SLinus Torvalds } 47391da177e4SLinus Torvalds 4740911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 47411da177e4SLinus Torvalds { 47421da177e4SLinus Torvalds int status; 47431da177e4SLinus Torvalds 47441da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4745c1d51931STrond Myklebust if (status == -EIO) 4746c1d51931STrond Myklebust goto out; 47471da177e4SLinus Torvalds if (status == 0) { 474807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 474907d30434SBenny Halevy if (unlikely(status)) 475007d30434SBenny Halevy goto out; 47511da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4752c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4753c1d51931STrond Myklebust if (res->open_seqid != NULL) 4754c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4755c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4756c1d51931STrond Myklebust out: 47571da177e4SLinus Torvalds return status; 47581da177e4SLinus Torvalds } 47591da177e4SLinus Torvalds 4760911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47611da177e4SLinus Torvalds { 47621da177e4SLinus Torvalds int status; 47631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47641da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4765911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47661da177e4SLinus Torvalds return status; 47671da177e4SLinus Torvalds } 47681da177e4SLinus Torvalds 4769911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47701da177e4SLinus Torvalds { 47711da177e4SLinus Torvalds int status; 47721da177e4SLinus Torvalds 47731da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4774c1d51931STrond Myklebust if (status != -EIO) 4775c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 477607d30434SBenny Halevy if (status == 0) 477707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47781da177e4SLinus Torvalds return status; 47791da177e4SLinus Torvalds } 47801da177e4SLinus Torvalds 4781d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4782d3c7b7ccSTrond Myklebust { 4783d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4784d3c7b7ccSTrond Myklebust } 4785d3c7b7ccSTrond Myklebust 47861da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47871da177e4SLinus Torvalds { 47881da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47891da177e4SLinus Torvalds } 47901da177e4SLinus Torvalds 47911da177e4SLinus Torvalds /* This is too sick! */ 47921da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47931da177e4SLinus Torvalds { 47948687b63aSAl Viro __be32 *p; 47951da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 47961da177e4SLinus Torvalds 4797c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4798c0eae66eSBenny Halevy if (unlikely(!p)) 4799c0eae66eSBenny Halevy goto out_overflow; 48006f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 48011da177e4SLinus Torvalds switch (limit_type) { 48021da177e4SLinus Torvalds case 1: 4803cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 48041da177e4SLinus Torvalds break; 48051da177e4SLinus Torvalds case 2: 48066f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4807cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 48081da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 48091da177e4SLinus Torvalds } 48101da177e4SLinus Torvalds return 0; 4811c0eae66eSBenny Halevy out_overflow: 4812c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4813c0eae66eSBenny Halevy return -EIO; 48141da177e4SLinus Torvalds } 48151da177e4SLinus Torvalds 48161da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 48171da177e4SLinus Torvalds { 48188687b63aSAl Viro __be32 *p; 48191da177e4SLinus Torvalds uint32_t delegation_type; 482007d30434SBenny Halevy int status; 48211da177e4SLinus Torvalds 4822c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4823c0eae66eSBenny Halevy if (unlikely(!p)) 4824c0eae66eSBenny Halevy goto out_overflow; 4825cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 48261da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 48271da177e4SLinus Torvalds res->delegation_type = 0; 48281da177e4SLinus Torvalds return 0; 48291da177e4SLinus Torvalds } 483007d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 483107d30434SBenny Halevy if (unlikely(status)) 483207d30434SBenny Halevy return status; 4833c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4834c0eae66eSBenny Halevy if (unlikely(!p)) 4835c0eae66eSBenny Halevy goto out_overflow; 4836cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 483705d564feSAndy Adamson 48381da177e4SLinus Torvalds switch (delegation_type) { 48391da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 48401da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 48411da177e4SLinus Torvalds break; 48421da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 48431da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 48441da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 48451da177e4SLinus Torvalds return -EIO; 48461da177e4SLinus Torvalds } 48477539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4848c0eae66eSBenny Halevy out_overflow: 4849c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4850c0eae66eSBenny Halevy return -EIO; 48511da177e4SLinus Torvalds } 48521da177e4SLinus Torvalds 48531da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 48541da177e4SLinus Torvalds { 48558687b63aSAl Viro __be32 *p; 4856aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 48571da177e4SLinus Torvalds int status; 48581da177e4SLinus Torvalds 48591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4860c1d51931STrond Myklebust if (status != -EIO) 4861c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 486207d30434SBenny Halevy if (!status) 486307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 486407d30434SBenny Halevy if (unlikely(status)) 48651da177e4SLinus Torvalds return status; 48661da177e4SLinus Torvalds 48671da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48681da177e4SLinus Torvalds 4869c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4870c0eae66eSBenny Halevy if (unlikely(!p)) 4871c0eae66eSBenny Halevy goto out_overflow; 48726f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4873cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48741da177e4SLinus Torvalds if (bmlen > 10) 48751da177e4SLinus Torvalds goto xdr_error; 48761da177e4SLinus Torvalds 4877c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4878c0eae66eSBenny Halevy if (unlikely(!p)) 4879c0eae66eSBenny Halevy goto out_overflow; 4880aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4881aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48826f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4883aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4884aa53ed54SJeff Layton res->attrset[i] = 0; 4885aa53ed54SJeff Layton 48861da177e4SLinus Torvalds return decode_delegation(xdr, res); 48871da177e4SLinus Torvalds xdr_error: 48883110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48891da177e4SLinus Torvalds return -EIO; 4890c0eae66eSBenny Halevy out_overflow: 4891c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4892c0eae66eSBenny Halevy return -EIO; 48931da177e4SLinus Torvalds } 48941da177e4SLinus Torvalds 48951da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 48961da177e4SLinus Torvalds { 48971da177e4SLinus Torvalds int status; 48981da177e4SLinus Torvalds 48991da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4900c1d51931STrond Myklebust if (status != -EIO) 4901c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 490207d30434SBenny Halevy if (!status) 490307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49041da177e4SLinus Torvalds return status; 49051da177e4SLinus Torvalds } 49061da177e4SLinus Torvalds 49071da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 49081da177e4SLinus Torvalds { 49091da177e4SLinus Torvalds int status; 49101da177e4SLinus Torvalds 49111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4912c1d51931STrond Myklebust if (status != -EIO) 4913c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 491407d30434SBenny Halevy if (!status) 491507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49161da177e4SLinus Torvalds return status; 49171da177e4SLinus Torvalds } 49181da177e4SLinus Torvalds 49191da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 49201da177e4SLinus Torvalds { 49211da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 49221da177e4SLinus Torvalds } 49231da177e4SLinus Torvalds 49241da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 49251da177e4SLinus Torvalds { 49261da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 49271da177e4SLinus Torvalds } 49281da177e4SLinus Torvalds 49291da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 49301da177e4SLinus Torvalds { 49318687b63aSAl Viro __be32 *p; 493264bd577eSTrond Myklebust uint32_t count, eof, recvd; 49331da177e4SLinus Torvalds int status; 49341da177e4SLinus Torvalds 49351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 49361da177e4SLinus Torvalds if (status) 49371da177e4SLinus Torvalds return status; 4938c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4939c0eae66eSBenny Halevy if (unlikely(!p)) 4940c0eae66eSBenny Halevy goto out_overflow; 49416f723f77SBenny Halevy eof = be32_to_cpup(p++); 4942cccddf4fSBenny Halevy count = be32_to_cpup(p); 494364bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 49441da177e4SLinus Torvalds if (count > recvd) { 4945fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 49461da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 49471da177e4SLinus Torvalds count = recvd; 49481da177e4SLinus Torvalds eof = 0; 49491da177e4SLinus Torvalds } 49501da177e4SLinus Torvalds res->eof = eof; 49511da177e4SLinus Torvalds res->count = count; 49521da177e4SLinus Torvalds return 0; 4953c0eae66eSBenny Halevy out_overflow: 4954c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4955c0eae66eSBenny Halevy return -EIO; 49561da177e4SLinus Torvalds } 49571da177e4SLinus Torvalds 49581da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 49591da177e4SLinus Torvalds { 4960bcecff77SChuck Lever int status; 4961cd93710eSChuck Lever __be32 verf[2]; 49621da177e4SLinus Torvalds 49631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4964db942bbdSBenny Halevy if (!status) 4965db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4966db942bbdSBenny Halevy if (unlikely(status)) 49671da177e4SLinus Torvalds return status; 4968cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 496944109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 4970cd93710eSChuck Lever __func__, verf[0], verf[1]); 497164bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 49721da177e4SLinus Torvalds } 49731da177e4SLinus Torvalds 49741da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49751da177e4SLinus Torvalds { 49761da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 4977bcecff77SChuck Lever u32 len, recvd; 49788687b63aSAl Viro __be32 *p; 49791da177e4SLinus Torvalds int status; 49801da177e4SLinus Torvalds 49811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49821da177e4SLinus Torvalds if (status) 49831da177e4SLinus Torvalds return status; 49841da177e4SLinus Torvalds 49851da177e4SLinus Torvalds /* Convert length of symlink */ 4986c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4987c0eae66eSBenny Halevy if (unlikely(!p)) 4988c0eae66eSBenny Halevy goto out_overflow; 4989cccddf4fSBenny Halevy len = be32_to_cpup(p); 49901da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4991fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49921da177e4SLinus Torvalds return -ENAMETOOLONG; 49931da177e4SLinus Torvalds } 499464bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 49951da177e4SLinus Torvalds if (recvd < len) { 4996fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 49971da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 49981da177e4SLinus Torvalds return -EIO; 49991da177e4SLinus Torvalds } 50001da177e4SLinus Torvalds /* 50011da177e4SLinus Torvalds * The XDR encode routine has set things up so that 50021da177e4SLinus Torvalds * the link text will be copied directly into the 50031da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 50041da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 50051da177e4SLinus Torvalds * null-termination). 50061da177e4SLinus Torvalds */ 5007b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 50081da177e4SLinus Torvalds return 0; 5009c0eae66eSBenny Halevy out_overflow: 5010c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5011c0eae66eSBenny Halevy return -EIO; 50121da177e4SLinus Torvalds } 50131da177e4SLinus Torvalds 50141da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 50151da177e4SLinus Torvalds { 50161da177e4SLinus Torvalds int status; 50171da177e4SLinus Torvalds 50181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 50191da177e4SLinus Torvalds if (status) 50201da177e4SLinus Torvalds goto out; 50211da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 50221da177e4SLinus Torvalds out: 50231da177e4SLinus Torvalds return status; 50241da177e4SLinus Torvalds } 50251da177e4SLinus Torvalds 50261da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 50271da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 50281da177e4SLinus Torvalds { 50291da177e4SLinus Torvalds int status; 50301da177e4SLinus Torvalds 50311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 50321da177e4SLinus Torvalds if (status) 50331da177e4SLinus Torvalds goto out; 50341da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 50351da177e4SLinus Torvalds goto out; 50361da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 50371da177e4SLinus Torvalds out: 50381da177e4SLinus Torvalds return status; 50391da177e4SLinus Torvalds } 50401da177e4SLinus Torvalds 50411da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50421da177e4SLinus Torvalds { 50431da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50441da177e4SLinus Torvalds } 50451da177e4SLinus Torvalds 504656ae19f3STrond Myklebust static int 504756ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 504856ae19f3STrond Myklebust { 504956ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 505056ae19f3STrond Myklebust } 505156ae19f3STrond Myklebust 5052029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5053bf118a34SAndy Adamson struct nfs_getaclres *res) 5054029d105eSJ. Bruce Fields { 5055256e48bbSTrond Myklebust unsigned int savep; 5056029d105eSJ. Bruce Fields uint32_t attrlen, 5057dae100c2SFred Isaman bitmap[3] = {0}; 5058029d105eSJ. Bruce Fields int status; 5059cff298c7STrond Myklebust unsigned int pg_offset; 5060029d105eSJ. Bruce Fields 5061bf118a34SAndy Adamson res->acl_len = 0; 5062029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5063029d105eSJ. Bruce Fields goto out; 50645a006899SSachin Prabhu 5065519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5066519d3959STrond Myklebust 5067cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5068cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 50695a006899SSachin Prabhu 5070029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5071029d105eSJ. Bruce Fields goto out; 5072029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5073029d105eSJ. Bruce Fields goto out; 5074029d105eSJ. Bruce Fields 5075029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5076029d105eSJ. Bruce Fields return -EIO; 5077029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5078029d105eSJ. Bruce Fields 5079bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5080bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5081bf118a34SAndy Adamson * variable length bitmaps.*/ 5082cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5083519d3959STrond Myklebust res->acl_len = attrlen; 50841f1ea6c2STrond Myklebust 50851f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 50861f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 50871f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 50881f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5089519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5090cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5091029d105eSJ. Bruce Fields } 50928c233cf9SJ. Bruce Fields } else 50938c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5094029d105eSJ. Bruce Fields 5095029d105eSJ. Bruce Fields out: 5096029d105eSJ. Bruce Fields return status; 5097029d105eSJ. Bruce Fields } 5098029d105eSJ. Bruce Fields 50991da177e4SLinus Torvalds static int 51001da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 51011da177e4SLinus Torvalds { 51021da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 51031da177e4SLinus Torvalds } 51041da177e4SLinus Torvalds 51059e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 51061da177e4SLinus Torvalds { 51078687b63aSAl Viro __be32 *p; 51081da177e4SLinus Torvalds uint32_t bmlen; 51091da177e4SLinus Torvalds int status; 51101da177e4SLinus Torvalds 51111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 51121da177e4SLinus Torvalds if (status) 51131da177e4SLinus Torvalds return status; 5114c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5115c0eae66eSBenny Halevy if (unlikely(!p)) 5116c0eae66eSBenny Halevy goto out_overflow; 5117cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5118c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5119c0eae66eSBenny Halevy if (likely(p)) 51201da177e4SLinus Torvalds return 0; 5121c0eae66eSBenny Halevy out_overflow: 5122c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5123c0eae66eSBenny Halevy return -EIO; 51241da177e4SLinus Torvalds } 51251da177e4SLinus Torvalds 5126bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 51271da177e4SLinus Torvalds { 51288687b63aSAl Viro __be32 *p; 51291da177e4SLinus Torvalds uint32_t opnum; 51301da177e4SLinus Torvalds int32_t nfserr; 51311da177e4SLinus Torvalds 5132c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5133c0eae66eSBenny Halevy if (unlikely(!p)) 5134c0eae66eSBenny Halevy goto out_overflow; 51356f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51361da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5137fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51381da177e4SLinus Torvalds " %d\n", opnum); 51391da177e4SLinus Torvalds return -EIO; 51401da177e4SLinus Torvalds } 5141cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51421da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5143c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5144c0eae66eSBenny Halevy if (unlikely(!p)) 5145c0eae66eSBenny Halevy goto out_overflow; 5146bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5147bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51481da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51491da177e4SLinus Torvalds uint32_t len; 51501da177e4SLinus Torvalds 51511da177e4SLinus Torvalds /* skip netid string */ 5152c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5153c0eae66eSBenny Halevy if (unlikely(!p)) 5154c0eae66eSBenny Halevy goto out_overflow; 5155cccddf4fSBenny Halevy len = be32_to_cpup(p); 5156c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5157c0eae66eSBenny Halevy if (unlikely(!p)) 5158c0eae66eSBenny Halevy goto out_overflow; 51591da177e4SLinus Torvalds 51601da177e4SLinus Torvalds /* skip uaddr string */ 5161c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5162c0eae66eSBenny Halevy if (unlikely(!p)) 5163c0eae66eSBenny Halevy goto out_overflow; 5164cccddf4fSBenny Halevy len = be32_to_cpup(p); 5165c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5166c0eae66eSBenny Halevy if (unlikely(!p)) 5167c0eae66eSBenny Halevy goto out_overflow; 51681da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51691da177e4SLinus Torvalds } else 5170856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51711da177e4SLinus Torvalds 51721da177e4SLinus Torvalds return 0; 5173c0eae66eSBenny Halevy out_overflow: 5174c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5175c0eae66eSBenny Halevy return -EIO; 51761da177e4SLinus Torvalds } 51771da177e4SLinus Torvalds 51781da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51791da177e4SLinus Torvalds { 51801da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51811da177e4SLinus Torvalds } 51821da177e4SLinus Torvalds 51831da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51841da177e4SLinus Torvalds { 51858687b63aSAl Viro __be32 *p; 51861da177e4SLinus Torvalds int status; 51871da177e4SLinus Torvalds 51881da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51891da177e4SLinus Torvalds if (status) 51901da177e4SLinus Torvalds return status; 51911da177e4SLinus Torvalds 51922f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5193c0eae66eSBenny Halevy if (unlikely(!p)) 5194c0eae66eSBenny Halevy goto out_overflow; 51956f723f77SBenny Halevy res->count = be32_to_cpup(p++); 51966f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 51972f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5198c0eae66eSBenny Halevy out_overflow: 5199c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5200c0eae66eSBenny Halevy return -EIO; 52011da177e4SLinus Torvalds } 52021da177e4SLinus Torvalds 52031da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 52041da177e4SLinus Torvalds { 52051da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 52061da177e4SLinus Torvalds } 52071da177e4SLinus Torvalds 52085a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 52095a5ea0d4SBryan Schumaker { 52105a5ea0d4SBryan Schumaker __be32 *p; 52115a5ea0d4SBryan Schumaker 52125a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52135a5ea0d4SBryan Schumaker if (unlikely(!p)) 52145a5ea0d4SBryan Schumaker goto out_overflow; 52155a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 52165a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 52175a5ea0d4SBryan Schumaker goto out_err; 52185a5ea0d4SBryan Schumaker 52195a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 52205a5ea0d4SBryan Schumaker if (unlikely(!p)) 52215a5ea0d4SBryan Schumaker goto out_overflow; 52225a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 52235a5ea0d4SBryan Schumaker 52245a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 52255a5ea0d4SBryan Schumaker if (unlikely(!p)) 52265a5ea0d4SBryan Schumaker goto out_overflow; 52275a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 52285a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 52295a5ea0d4SBryan Schumaker 52305a5ea0d4SBryan Schumaker return 0; 52315a5ea0d4SBryan Schumaker 52325a5ea0d4SBryan Schumaker out_overflow: 52335a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52345a5ea0d4SBryan Schumaker return -EIO; 52355a5ea0d4SBryan Schumaker out_err: 52365a5ea0d4SBryan Schumaker return -EINVAL; 52375a5ea0d4SBryan Schumaker } 52385a5ea0d4SBryan Schumaker 523931e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52405a5ea0d4SBryan Schumaker { 52415a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 52425a5ea0d4SBryan Schumaker int status; 52435a5ea0d4SBryan Schumaker __be32 *p; 5244c3dfc280SBryan Schumaker int i, num_flavors; 52455a5ea0d4SBryan Schumaker 52465a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52475a5ea0d4SBryan Schumaker if (unlikely(!p)) 52485a5ea0d4SBryan Schumaker goto out_overflow; 52495a5ea0d4SBryan Schumaker 5250c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5251c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5252c3dfc280SBryan Schumaker 5253c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52545a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5255c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52565a5ea0d4SBryan Schumaker break; 52575a5ea0d4SBryan Schumaker 52585a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52595a5ea0d4SBryan Schumaker if (unlikely(!p)) 52605a5ea0d4SBryan Schumaker goto out_overflow; 52615a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52625a5ea0d4SBryan Schumaker 52635a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5264613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5265613e901eSBryan Schumaker if (status) 5266613e901eSBryan Schumaker goto out; 52675a5ea0d4SBryan Schumaker } 5268c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52695a5ea0d4SBryan Schumaker } 52705a5ea0d4SBryan Schumaker 527131e4dda4SBryan Schumaker status = 0; 5272613e901eSBryan Schumaker out: 5273613e901eSBryan Schumaker return status; 52745a5ea0d4SBryan Schumaker out_overflow: 52755a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52765a5ea0d4SBryan Schumaker return -EIO; 52775a5ea0d4SBryan Schumaker } 52785a5ea0d4SBryan Schumaker 527931e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 528031e4dda4SBryan Schumaker { 528131e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 528231e4dda4SBryan Schumaker if (status) 528331e4dda4SBryan Schumaker return status; 528431e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 528531e4dda4SBryan Schumaker } 528631e4dda4SBryan Schumaker 528799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 528831e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 528931e4dda4SBryan Schumaker { 529031e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 529131e4dda4SBryan Schumaker if (status) 529231e4dda4SBryan Schumaker return status; 529331e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 529431e4dda4SBryan Schumaker } 529531e4dda4SBryan Schumaker 529699fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 529799fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 529899fe60d0SBenny Halevy { 529999fe60d0SBenny Halevy __be32 *p; 530099fe60d0SBenny Halevy uint32_t dummy; 53012460ba57SBenny Halevy char *dummy_str; 530299fe60d0SBenny Halevy int status; 53037d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 530499fe60d0SBenny Halevy 530599fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 530699fe60d0SBenny Halevy if (status) 530799fe60d0SBenny Halevy return status; 530899fe60d0SBenny Halevy 5309c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5310c0eae66eSBenny Halevy if (unlikely(!p)) 5311c0eae66eSBenny Halevy goto out_overflow; 531232b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5313c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5314c0eae66eSBenny Halevy if (unlikely(!p)) 5315c0eae66eSBenny Halevy goto out_overflow; 531632b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 531732b01310STrond Myklebust res->flags = be32_to_cpup(p++); 531899fe60d0SBenny Halevy 531999fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5320cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 532199fe60d0SBenny Halevy if (dummy != SP4_NONE) 532299fe60d0SBenny Halevy return -EIO; 532399fe60d0SBenny Halevy 5324acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5325c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5326c0eae66eSBenny Halevy if (unlikely(!p)) 5327c0eae66eSBenny Halevy goto out_overflow; 5328acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 532999fe60d0SBenny Halevy 5330acdeb69dSChuck Lever /* server_owner4.so_major_id */ 53312460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53322460ba57SBenny Halevy if (unlikely(status)) 53332460ba57SBenny Halevy return status; 533478fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 533578fe0f41SWeston Andros Adamson return -EIO; 5336acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5337acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 533878fe0f41SWeston Andros Adamson 5339acdeb69dSChuck Lever /* server_scope4 */ 5340acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5341acdeb69dSChuck Lever if (unlikely(status)) 5342acdeb69dSChuck Lever return status; 5343acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5344acdeb69dSChuck Lever return -EIO; 534578fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 534678fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 534778fe0f41SWeston Andros Adamson 53487d2ed9acSWeston Andros Adamson /* Implementation Id */ 53497d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 53507d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53517d2ed9acSWeston Andros Adamson goto out_overflow; 53527d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 53537d2ed9acSWeston Andros Adamson 53547d2ed9acSWeston Andros Adamson if (impl_id_count) { 53557d2ed9acSWeston Andros Adamson /* nii_domain */ 53562460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53572460ba57SBenny Halevy if (unlikely(status)) 53582460ba57SBenny Halevy return status; 53597d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53607d2ed9acSWeston Andros Adamson return -EIO; 53617d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 536299fe60d0SBenny Halevy 53637d2ed9acSWeston Andros Adamson /* nii_name */ 53647d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53657d2ed9acSWeston Andros Adamson if (unlikely(status)) 53667d2ed9acSWeston Andros Adamson return status; 53677d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53687d2ed9acSWeston Andros Adamson return -EIO; 53697d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 53707d2ed9acSWeston Andros Adamson 53717d2ed9acSWeston Andros Adamson /* nii_date */ 53727d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 53737d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53747d2ed9acSWeston Andros Adamson goto out_overflow; 53757d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 53767d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 53777d2ed9acSWeston Andros Adamson 53787d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 53797d2ed9acSWeston Andros Adamson } 538099fe60d0SBenny Halevy return 0; 5381c0eae66eSBenny Halevy out_overflow: 5382c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5383c0eae66eSBenny Halevy return -EIO; 538499fe60d0SBenny Halevy } 5385fc931582SAndy Adamson 5386fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5387fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5388fc931582SAndy Adamson { 5389fc931582SAndy Adamson __be32 *p; 5390c9c30dd5SBenny Halevy u32 nr_attrs, val; 5391fc931582SAndy Adamson 5392c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5393c0eae66eSBenny Halevy if (unlikely(!p)) 5394c0eae66eSBenny Halevy goto out_overflow; 5395c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5396c9c30dd5SBenny Halevy if (val) 5397c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 53986f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 53996f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 54006f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 54016f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 54026f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5403cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5404fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5405a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5406a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5407fc931582SAndy Adamson return -EINVAL; 5408fc931582SAndy Adamson } 5409c0eae66eSBenny Halevy if (nr_attrs == 1) { 5410c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5411c0eae66eSBenny Halevy if (unlikely(!p)) 5412c0eae66eSBenny Halevy goto out_overflow; 5413c0eae66eSBenny Halevy } 5414fc931582SAndy Adamson return 0; 5415c0eae66eSBenny Halevy out_overflow: 5416c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5417c0eae66eSBenny Halevy return -EIO; 5418fc931582SAndy Adamson } 5419fc931582SAndy Adamson 5420e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5421e78291e4SBenny Halevy { 5422e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5423fc931582SAndy Adamson } 5424fc931582SAndy Adamson 54257c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 54267c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 54277c44f1aeSWeston Andros Adamson { 54287c44f1aeSWeston Andros Adamson __be32 *p; 54297c44f1aeSWeston Andros Adamson int status; 54307c44f1aeSWeston Andros Adamson 54317c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 54327c44f1aeSWeston Andros Adamson if (!status) 54337c44f1aeSWeston Andros Adamson status = decode_sessionid(xdr, &res->session->sess_id); 54347c44f1aeSWeston Andros Adamson if (unlikely(status)) 54357c44f1aeSWeston Andros Adamson return status; 54367c44f1aeSWeston Andros Adamson 54377c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 54387c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 54397c44f1aeSWeston Andros Adamson if (unlikely(!p)) 54407c44f1aeSWeston Andros Adamson goto out_overflow; 54417c44f1aeSWeston Andros Adamson 54427c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 54437c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 54447c44f1aeSWeston Andros Adamson return -EIO; 54457c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 54467c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 54477c44f1aeSWeston Andros Adamson else 54487c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 54497c44f1aeSWeston Andros Adamson 54507c44f1aeSWeston Andros Adamson return 0; 54517c44f1aeSWeston Andros Adamson out_overflow: 54527c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 54537c44f1aeSWeston Andros Adamson return -EIO; 54547c44f1aeSWeston Andros Adamson } 54557c44f1aeSWeston Andros Adamson 5456fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5457fc931582SAndy Adamson struct nfs41_create_session_res *res) 5458fc931582SAndy Adamson { 5459fc931582SAndy Adamson __be32 *p; 5460fc931582SAndy Adamson int status; 5461fc931582SAndy Adamson struct nfs_client *clp = res->client; 5462fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5463fc931582SAndy Adamson 5464fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5465e78291e4SBenny Halevy if (!status) 5466e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5467e78291e4SBenny Halevy if (unlikely(status)) 5468fc931582SAndy Adamson return status; 5469fc931582SAndy Adamson 5470fc931582SAndy Adamson /* seqid, flags */ 5471c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5472c0eae66eSBenny Halevy if (unlikely(!p)) 5473c0eae66eSBenny Halevy goto out_overflow; 54746f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5475cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5476fc931582SAndy Adamson 5477fc931582SAndy Adamson /* Channel attributes */ 5478fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5479fc931582SAndy Adamson if (!status) 5480fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5481fc931582SAndy Adamson return status; 5482c0eae66eSBenny Halevy out_overflow: 5483c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5484c0eae66eSBenny Halevy return -EIO; 5485fc931582SAndy Adamson } 54860f3e66c6SAndy Adamson 54870f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 54880f3e66c6SAndy Adamson { 54890f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 54900f3e66c6SAndy Adamson } 549118019753SRicardo Labiaga 549266245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 549366245539STrond Myklebust { 549466245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 549566245539STrond Myklebust } 549666245539STrond Myklebust 549718019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 549818019753SRicardo Labiaga { 549918019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 550018019753SRicardo Labiaga } 550199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 550299fe60d0SBenny Halevy 55039b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 55049b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 55059b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 55069b7b9fccSAndy Adamson { 55079b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5508e3725ec0STrond Myklebust struct nfs4_session *session; 5509fc01cea9SAndy Adamson struct nfs4_sessionid id; 5510fc01cea9SAndy Adamson u32 dummy; 5511fc01cea9SAndy Adamson int status; 5512fc01cea9SAndy Adamson __be32 *p; 5513fc01cea9SAndy Adamson 5514e3725ec0STrond Myklebust if (res->sr_slot == NULL) 55159b7b9fccSAndy Adamson return 0; 55169b7b9fccSAndy Adamson 5517fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5518e78291e4SBenny Halevy if (!status) 5519e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5520e78291e4SBenny Halevy if (unlikely(status)) 5521fc01cea9SAndy Adamson goto out_err; 55229b7b9fccSAndy Adamson 5523fc01cea9SAndy Adamson /* 5524fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5525fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5526fc01cea9SAndy Adamson */ 5527fdcb4577STrond Myklebust status = -EREMOTEIO; 5528e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5529fc01cea9SAndy Adamson 5530e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5531fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5532fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5533fc01cea9SAndy Adamson goto out_err; 5534fc01cea9SAndy Adamson } 5535e78291e4SBenny Halevy 5536c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5537c0eae66eSBenny Halevy if (unlikely(!p)) 5538c0eae66eSBenny Halevy goto out_overflow; 5539e78291e4SBenny Halevy 5540fc01cea9SAndy Adamson /* seqid */ 55416f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5542dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5543fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5544fc01cea9SAndy Adamson goto out_err; 5545fc01cea9SAndy Adamson } 5546fc01cea9SAndy Adamson /* slot id */ 55476f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5548df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5549fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5550fc01cea9SAndy Adamson goto out_err; 5551fc01cea9SAndy Adamson } 5552da0507b7STrond Myklebust /* highest slot id */ 5553da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5554464ee9f9STrond Myklebust /* target highest slot id */ 5555464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 55560629e370SAlexandros Batsakis /* result flags */ 55570629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5558fc01cea9SAndy Adamson status = 0; 5559fc01cea9SAndy Adamson out_err: 5560fc01cea9SAndy Adamson res->sr_status = status; 5561fc01cea9SAndy Adamson return status; 5562c0eae66eSBenny Halevy out_overflow: 5563c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5564c0eae66eSBenny Halevy status = -EIO; 5565c0eae66eSBenny Halevy goto out_err; 5566fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 55679b7b9fccSAndy Adamson return 0; 5568fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 55699b7b9fccSAndy Adamson } 55709b7b9fccSAndy Adamson 5571b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 55727f11d8d3SAndy Adamson /* 55737f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 55747f11d8d3SAndy Adamson */ 55757f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 55767f11d8d3SAndy Adamson struct pnfs_devicelist *res) 55777f11d8d3SAndy Adamson { 55787f11d8d3SAndy Adamson __be32 *p; 55797f11d8d3SAndy Adamson int status, i; 558098d94524STrond Myklebust nfs4_verifier verftemp; 55817f11d8d3SAndy Adamson 55827f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 55837f11d8d3SAndy Adamson if (status) 55847f11d8d3SAndy Adamson return status; 55857f11d8d3SAndy Adamson 55867f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 55877f11d8d3SAndy Adamson if (unlikely(!p)) 55887f11d8d3SAndy Adamson goto out_overflow; 55897f11d8d3SAndy Adamson 55907f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 55917f11d8d3SAndy Adamson p += 2; 55927f11d8d3SAndy Adamson 55937f11d8d3SAndy Adamson /* Read verifier */ 559498d94524STrond Myklebust p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE); 55957f11d8d3SAndy Adamson 55967f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 55977f11d8d3SAndy Adamson 55987f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 55997f11d8d3SAndy Adamson 56007f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5601a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 56027f11d8d3SAndy Adamson __func__, res->num_devs); 56037f11d8d3SAndy Adamson return -EIO; 56047f11d8d3SAndy Adamson } 56057f11d8d3SAndy Adamson 56067f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 56077f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 56087f11d8d3SAndy Adamson if (unlikely(!p)) 56097f11d8d3SAndy Adamson goto out_overflow; 56107f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 56117f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 56127f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 56137f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 56147f11d8d3SAndy Adamson return 0; 56157f11d8d3SAndy Adamson out_overflow: 56167f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 56177f11d8d3SAndy Adamson return -EIO; 56187f11d8d3SAndy Adamson } 5619b1f69b75SAndy Adamson 5620b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5621b1f69b75SAndy Adamson struct pnfs_device *pdev) 5622b1f69b75SAndy Adamson { 5623b1f69b75SAndy Adamson __be32 *p; 5624b1f69b75SAndy Adamson uint32_t len, type; 5625b1f69b75SAndy Adamson int status; 5626b1f69b75SAndy Adamson 5627b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5628b1f69b75SAndy Adamson if (status) { 5629b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5630b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5631b1f69b75SAndy Adamson if (unlikely(!p)) 5632b1f69b75SAndy Adamson goto out_overflow; 5633b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5634b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5635b1f69b75SAndy Adamson __func__, pdev->mincount); 5636b1f69b75SAndy Adamson } 5637b1f69b75SAndy Adamson return status; 5638b1f69b75SAndy Adamson } 5639b1f69b75SAndy Adamson 5640b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5641b1f69b75SAndy Adamson if (unlikely(!p)) 5642b1f69b75SAndy Adamson goto out_overflow; 5643b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5644b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5645b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5646b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5647b1f69b75SAndy Adamson return -EINVAL; 5648b1f69b75SAndy Adamson } 5649b1f69b75SAndy Adamson /* 5650b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5651b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5652b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5653b1f69b75SAndy Adamson */ 5654b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 565513fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 565613fe4ba1STrond Myklebust goto out_overflow; 5657b1f69b75SAndy Adamson 5658b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5659b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5660b1f69b75SAndy Adamson if (unlikely(!p)) 5661b1f69b75SAndy Adamson goto out_overflow; 5662b1f69b75SAndy Adamson len = be32_to_cpup(p); 5663b1f69b75SAndy Adamson if (len) { 5664ead00597SChuck Lever uint32_t i; 5665b1f69b75SAndy Adamson 5666b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5667b1f69b75SAndy Adamson if (unlikely(!p)) 5668b1f69b75SAndy Adamson goto out_overflow; 5669b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5670b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5671b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5672b1f69b75SAndy Adamson __func__); 5673b1f69b75SAndy Adamson return -EIO; 5674b1f69b75SAndy Adamson } 5675b1f69b75SAndy Adamson } 5676b1f69b75SAndy Adamson } 5677b1f69b75SAndy Adamson return 0; 5678b1f69b75SAndy Adamson out_overflow: 5679b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5680b1f69b75SAndy Adamson return -EIO; 5681b1f69b75SAndy Adamson } 5682b1f69b75SAndy Adamson 5683b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5684b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5685b1f69b75SAndy Adamson { 5686b1f69b75SAndy Adamson __be32 *p; 5687b1f69b75SAndy Adamson int status; 5688b1f69b75SAndy Adamson u32 layout_count; 568964bd577eSTrond Myklebust u32 recvd; 5690b1f69b75SAndy Adamson 5691b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5692b1f69b75SAndy Adamson if (status) 5693b1f69b75SAndy Adamson return status; 5694ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5695b1f69b75SAndy Adamson if (unlikely(!p)) 5696b1f69b75SAndy Adamson goto out_overflow; 5697ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5698ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5699ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5700ea9d23f5STrond Myklebust if (unlikely(!p)) 5701ea9d23f5STrond Myklebust goto out_overflow; 5702b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5703b1f69b75SAndy Adamson if (!layout_count) { 5704b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5705b1f69b75SAndy Adamson __func__); 5706b1f69b75SAndy Adamson return -EINVAL; 5707b1f69b75SAndy Adamson } 5708b1f69b75SAndy Adamson 570935124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5710b1f69b75SAndy Adamson if (unlikely(!p)) 5711b1f69b75SAndy Adamson goto out_overflow; 5712b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5713b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5714b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5715b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 571635124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5717b1f69b75SAndy Adamson 5718b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5719b1f69b75SAndy Adamson __func__, 5720b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5721b1f69b75SAndy Adamson (unsigned long)res->range.length, 5722b1f69b75SAndy Adamson res->range.iomode, 5723b1f69b75SAndy Adamson res->type, 572435124a09SWeston Andros Adamson res->layoutp->len); 5725b1f69b75SAndy Adamson 572664bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 572735124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 572835124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 572935124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 573035124a09SWeston Andros Adamson res->layoutp->len, recvd); 573135124a09SWeston Andros Adamson return -EINVAL; 573235124a09SWeston Andros Adamson } 573335124a09SWeston Andros Adamson 5734b1f69b75SAndy Adamson if (layout_count > 1) { 5735b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5736b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5737b1f69b75SAndy Adamson * the client may see a response that is less than the 5738b1f69b75SAndy Adamson * minimum it requested. 5739b1f69b75SAndy Adamson */ 5740b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5741b1f69b75SAndy Adamson __func__, layout_count); 5742b1f69b75SAndy Adamson } 5743b1f69b75SAndy Adamson 5744b1f69b75SAndy Adamson return 0; 5745b1f69b75SAndy Adamson out_overflow: 5746b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5747b1f69b75SAndy Adamson return -EIO; 5748b1f69b75SAndy Adamson } 5749863a3c6cSAndy Adamson 5750cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5751cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5752cbe82603SBenny Halevy { 5753cbe82603SBenny Halevy __be32 *p; 5754cbe82603SBenny Halevy int status; 5755cbe82603SBenny Halevy 5756cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5757cbe82603SBenny Halevy if (status) 5758cbe82603SBenny Halevy return status; 5759cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5760cbe82603SBenny Halevy if (unlikely(!p)) 5761cbe82603SBenny Halevy goto out_overflow; 5762cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5763cbe82603SBenny Halevy if (res->lrs_present) 5764cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5765cbe82603SBenny Halevy return status; 5766cbe82603SBenny Halevy out_overflow: 5767cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5768cbe82603SBenny Halevy return -EIO; 5769cbe82603SBenny Halevy } 5770cbe82603SBenny Halevy 5771863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5772863a3c6cSAndy Adamson struct rpc_rqst *req, 5773863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5774863a3c6cSAndy Adamson { 5775863a3c6cSAndy Adamson __be32 *p; 5776863a3c6cSAndy Adamson __u32 sizechanged; 5777863a3c6cSAndy Adamson int status; 5778863a3c6cSAndy Adamson 5779863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5780db29c089SAndy Adamson res->status = status; 5781863a3c6cSAndy Adamson if (status) 5782863a3c6cSAndy Adamson return status; 5783863a3c6cSAndy Adamson 5784863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5785863a3c6cSAndy Adamson if (unlikely(!p)) 5786863a3c6cSAndy Adamson goto out_overflow; 5787863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5788863a3c6cSAndy Adamson 5789863a3c6cSAndy Adamson if (sizechanged) { 5790863a3c6cSAndy Adamson /* throw away new size */ 5791863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5792863a3c6cSAndy Adamson if (unlikely(!p)) 5793863a3c6cSAndy Adamson goto out_overflow; 5794863a3c6cSAndy Adamson } 5795863a3c6cSAndy Adamson return 0; 5796863a3c6cSAndy Adamson out_overflow: 5797863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5798863a3c6cSAndy Adamson return -EIO; 5799863a3c6cSAndy Adamson } 58007d974794SBryan Schumaker 58017d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 58027d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 58037d974794SBryan Schumaker { 58047d974794SBryan Schumaker __be32 *p; 58057d974794SBryan Schumaker int status; 58067d974794SBryan Schumaker int num_res; 58077d974794SBryan Schumaker 58087d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 58097d974794SBryan Schumaker if (status) 58107d974794SBryan Schumaker return status; 58117d974794SBryan Schumaker 58127d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58137d974794SBryan Schumaker if (unlikely(!p)) 58147d974794SBryan Schumaker goto out_overflow; 58157d974794SBryan Schumaker num_res = be32_to_cpup(p++); 58167d974794SBryan Schumaker if (num_res != 1) 58177d974794SBryan Schumaker goto out; 58187d974794SBryan Schumaker 58197d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58207d974794SBryan Schumaker if (unlikely(!p)) 58217d974794SBryan Schumaker goto out_overflow; 58227d974794SBryan Schumaker res->status = be32_to_cpup(p++); 58231cab0652SBryan Schumaker 58241cab0652SBryan Schumaker return status; 58257d974794SBryan Schumaker out_overflow: 58267d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 58277d974794SBryan Schumaker out: 58287d974794SBryan Schumaker return -EIO; 58297d974794SBryan Schumaker } 58309aeda35fSBryan Schumaker 58319aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 58329aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 58339aeda35fSBryan Schumaker { 58349aeda35fSBryan Schumaker __be32 *p; 58359aeda35fSBryan Schumaker int status; 58369aeda35fSBryan Schumaker 58379aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 58389aeda35fSBryan Schumaker if (status) 58399aeda35fSBryan Schumaker return status; 58409aeda35fSBryan Schumaker 58419aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 58429aeda35fSBryan Schumaker if (unlikely(!p)) 58439aeda35fSBryan Schumaker goto out_overflow; 58449aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 58459aeda35fSBryan Schumaker return res->status; 58469aeda35fSBryan Schumaker out_overflow: 58479aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 58489aeda35fSBryan Schumaker return -EIO; 58499aeda35fSBryan Schumaker } 5850b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5851b1f69b75SAndy Adamson 58521da177e4SLinus Torvalds /* 585349c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 585449c2559eSBenny Halevy */ 585549c2559eSBenny Halevy 585649c2559eSBenny Halevy /* 58571da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 58581da177e4SLinus Torvalds */ 5859bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5860bf269551SChuck Lever struct xdr_stream *xdr, 5861bf269551SChuck Lever struct nfs_closeres *res) 58621da177e4SLinus Torvalds { 58631da177e4SLinus Torvalds struct compound_hdr hdr; 58641da177e4SLinus Torvalds int status; 58651da177e4SLinus Torvalds 5866bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58671da177e4SLinus Torvalds if (status) 58681da177e4SLinus Torvalds goto out; 5869bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58709b7b9fccSAndy Adamson if (status) 58719b7b9fccSAndy Adamson goto out; 5872bf269551SChuck Lever status = decode_putfh(xdr); 58731da177e4SLinus Torvalds if (status) 58741da177e4SLinus Torvalds goto out; 5875bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5876516a6af6STrond Myklebust if (status != 0) 5877516a6af6STrond Myklebust goto out; 58786926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58791da177e4SLinus Torvalds out: 58801da177e4SLinus Torvalds return status; 58811da177e4SLinus Torvalds } 58821da177e4SLinus Torvalds 58831da177e4SLinus Torvalds /* 58841da177e4SLinus Torvalds * Decode ACCESS response 58851da177e4SLinus Torvalds */ 5886bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5887bf269551SChuck Lever struct nfs4_accessres *res) 58881da177e4SLinus Torvalds { 58891da177e4SLinus Torvalds struct compound_hdr hdr; 58901da177e4SLinus Torvalds int status; 58911da177e4SLinus Torvalds 5892bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58939b7b9fccSAndy Adamson if (status) 58949b7b9fccSAndy Adamson goto out; 5895bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58969b7b9fccSAndy Adamson if (status) 58971da177e4SLinus Torvalds goto out; 5898bf269551SChuck Lever status = decode_putfh(xdr); 589976b32999STrond Myklebust if (status != 0) 590076b32999STrond Myklebust goto out; 59016168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 590276b32999STrond Myklebust if (status != 0) 590376b32999STrond Myklebust goto out; 59046926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 59051da177e4SLinus Torvalds out: 59061da177e4SLinus Torvalds return status; 59071da177e4SLinus Torvalds } 59081da177e4SLinus Torvalds 59091da177e4SLinus Torvalds /* 59101da177e4SLinus Torvalds * Decode LOOKUP response 59111da177e4SLinus Torvalds */ 5912bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5913bf269551SChuck Lever struct nfs4_lookup_res *res) 59141da177e4SLinus Torvalds { 59151da177e4SLinus Torvalds struct compound_hdr hdr; 59161da177e4SLinus Torvalds int status; 59171da177e4SLinus Torvalds 5918bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59199b7b9fccSAndy Adamson if (status) 59209b7b9fccSAndy Adamson goto out; 5921bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59229b7b9fccSAndy Adamson if (status) 59231da177e4SLinus Torvalds goto out; 5924bf269551SChuck Lever status = decode_putfh(xdr); 5925bf269551SChuck Lever if (status) 59261da177e4SLinus Torvalds goto out; 5927bf269551SChuck Lever status = decode_lookup(xdr); 5928bf269551SChuck Lever if (status) 59291da177e4SLinus Torvalds goto out; 5930bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5931bf269551SChuck Lever if (status) 59321da177e4SLinus Torvalds goto out; 59336926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59341da177e4SLinus Torvalds out: 59351da177e4SLinus Torvalds return status; 59361da177e4SLinus Torvalds } 59371da177e4SLinus Torvalds 59381da177e4SLinus Torvalds /* 59391da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 59401da177e4SLinus Torvalds */ 5941bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5942bf269551SChuck Lever struct xdr_stream *xdr, 5943bf269551SChuck Lever struct nfs4_lookup_res *res) 59441da177e4SLinus Torvalds { 59451da177e4SLinus Torvalds struct compound_hdr hdr; 59461da177e4SLinus Torvalds int status; 59471da177e4SLinus Torvalds 5948bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59499b7b9fccSAndy Adamson if (status) 59509b7b9fccSAndy Adamson goto out; 5951bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59529b7b9fccSAndy Adamson if (status) 59531da177e4SLinus Torvalds goto out; 5954bf269551SChuck Lever status = decode_putrootfh(xdr); 5955bf269551SChuck Lever if (status) 59561da177e4SLinus Torvalds goto out; 5957bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5958bf269551SChuck Lever if (status == 0) 59596926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59601da177e4SLinus Torvalds out: 59611da177e4SLinus Torvalds return status; 59621da177e4SLinus Torvalds } 59631da177e4SLinus Torvalds 59641da177e4SLinus Torvalds /* 59651da177e4SLinus Torvalds * Decode REMOVE response 59661da177e4SLinus Torvalds */ 5967bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5968bf269551SChuck Lever struct nfs_removeres *res) 59691da177e4SLinus Torvalds { 59701da177e4SLinus Torvalds struct compound_hdr hdr; 59711da177e4SLinus Torvalds int status; 59721da177e4SLinus Torvalds 5973bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59749b7b9fccSAndy Adamson if (status) 59759b7b9fccSAndy Adamson goto out; 5976bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59779b7b9fccSAndy Adamson if (status) 59781da177e4SLinus Torvalds goto out; 5979bf269551SChuck Lever status = decode_putfh(xdr); 5980bf269551SChuck Lever if (status) 598116e42959STrond Myklebust goto out; 5982bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 59831da177e4SLinus Torvalds out: 59841da177e4SLinus Torvalds return status; 59851da177e4SLinus Torvalds } 59861da177e4SLinus Torvalds 59871da177e4SLinus Torvalds /* 59881da177e4SLinus Torvalds * Decode RENAME response 59891da177e4SLinus Torvalds */ 5990bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5991bf269551SChuck Lever struct nfs_renameres *res) 59921da177e4SLinus Torvalds { 59931da177e4SLinus Torvalds struct compound_hdr hdr; 59941da177e4SLinus Torvalds int status; 59951da177e4SLinus Torvalds 5996bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59979b7b9fccSAndy Adamson if (status) 59989b7b9fccSAndy Adamson goto out; 5999bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60009b7b9fccSAndy Adamson if (status) 60011da177e4SLinus Torvalds goto out; 6002bf269551SChuck Lever status = decode_putfh(xdr); 6003bf269551SChuck Lever if (status) 60041da177e4SLinus Torvalds goto out; 6005bf269551SChuck Lever status = decode_savefh(xdr); 6006bf269551SChuck Lever if (status) 60071da177e4SLinus Torvalds goto out; 6008bf269551SChuck Lever status = decode_putfh(xdr); 6009bf269551SChuck Lever if (status) 60101da177e4SLinus Torvalds goto out; 6011bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 60121da177e4SLinus Torvalds out: 60131da177e4SLinus Torvalds return status; 60141da177e4SLinus Torvalds } 60151da177e4SLinus Torvalds 60161da177e4SLinus Torvalds /* 60171da177e4SLinus Torvalds * Decode LINK response 60181da177e4SLinus Torvalds */ 6019bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6020bf269551SChuck Lever struct nfs4_link_res *res) 60211da177e4SLinus Torvalds { 60221da177e4SLinus Torvalds struct compound_hdr hdr; 60231da177e4SLinus Torvalds int status; 60241da177e4SLinus Torvalds 6025bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60269b7b9fccSAndy Adamson if (status) 60279b7b9fccSAndy Adamson goto out; 6028bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60299b7b9fccSAndy Adamson if (status) 60301da177e4SLinus Torvalds goto out; 6031bf269551SChuck Lever status = decode_putfh(xdr); 6032bf269551SChuck Lever if (status) 60331da177e4SLinus Torvalds goto out; 6034bf269551SChuck Lever status = decode_savefh(xdr); 6035bf269551SChuck Lever if (status) 60361da177e4SLinus Torvalds goto out; 6037bf269551SChuck Lever status = decode_putfh(xdr); 6038bf269551SChuck Lever if (status) 60391da177e4SLinus Torvalds goto out; 6040bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6041bf269551SChuck Lever if (status) 604291ba2eeeSTrond Myklebust goto out; 604391ba2eeeSTrond Myklebust /* 604491ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 604591ba2eeeSTrond Myklebust * filehandle. 604691ba2eeeSTrond Myklebust */ 6047bf269551SChuck Lever status = decode_restorefh(xdr); 6048bf269551SChuck Lever if (status) 604991ba2eeeSTrond Myklebust goto out; 60506926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60511da177e4SLinus Torvalds out: 60521da177e4SLinus Torvalds return status; 60531da177e4SLinus Torvalds } 60541da177e4SLinus Torvalds 60551da177e4SLinus Torvalds /* 60561da177e4SLinus Torvalds * Decode CREATE response 60571da177e4SLinus Torvalds */ 6058bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6059bf269551SChuck Lever struct nfs4_create_res *res) 60601da177e4SLinus Torvalds { 60611da177e4SLinus Torvalds struct compound_hdr hdr; 60621da177e4SLinus Torvalds int status; 60631da177e4SLinus Torvalds 6064bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60659b7b9fccSAndy Adamson if (status) 60669b7b9fccSAndy Adamson goto out; 6067bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60689b7b9fccSAndy Adamson if (status) 60691da177e4SLinus Torvalds goto out; 6070bf269551SChuck Lever status = decode_putfh(xdr); 6071bf269551SChuck Lever if (status) 60721da177e4SLinus Torvalds goto out; 6073bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6074bf269551SChuck Lever if (status) 60751da177e4SLinus Torvalds goto out; 6076bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6077bf269551SChuck Lever if (status) 60781da177e4SLinus Torvalds goto out; 60797c317fcfSTrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60801da177e4SLinus Torvalds out: 60811da177e4SLinus Torvalds return status; 60821da177e4SLinus Torvalds } 60831da177e4SLinus Torvalds 60841da177e4SLinus Torvalds /* 60851da177e4SLinus Torvalds * Decode SYMLINK response 60861da177e4SLinus Torvalds */ 6087bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6088bf269551SChuck Lever struct nfs4_create_res *res) 60891da177e4SLinus Torvalds { 6090bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60911da177e4SLinus Torvalds } 60921da177e4SLinus Torvalds 60931da177e4SLinus Torvalds /* 60941da177e4SLinus Torvalds * Decode GETATTR response 60951da177e4SLinus Torvalds */ 6096bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6097bf269551SChuck Lever struct nfs4_getattr_res *res) 60981da177e4SLinus Torvalds { 60991da177e4SLinus Torvalds struct compound_hdr hdr; 61001da177e4SLinus Torvalds int status; 61011da177e4SLinus Torvalds 6102bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61031da177e4SLinus Torvalds if (status) 61041da177e4SLinus Torvalds goto out; 6105bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61069b7b9fccSAndy Adamson if (status) 61079b7b9fccSAndy Adamson goto out; 6108bf269551SChuck Lever status = decode_putfh(xdr); 61091da177e4SLinus Torvalds if (status) 61101da177e4SLinus Torvalds goto out; 61116926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 61121da177e4SLinus Torvalds out: 61131da177e4SLinus Torvalds return status; 61141da177e4SLinus Torvalds } 61151da177e4SLinus Torvalds 611623ec6965SJ. Bruce Fields /* 611723ec6965SJ. Bruce Fields * Encode an SETACL request 611823ec6965SJ. Bruce Fields */ 61199f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 61209f06c719SChuck Lever struct nfs_setaclargs *args) 612123ec6965SJ. Bruce Fields { 612223ec6965SJ. Bruce Fields struct compound_hdr hdr = { 612366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 612423ec6965SJ. Bruce Fields }; 612523ec6965SJ. Bruce Fields 61269f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 61279f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 61289f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 61299f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6130d017931cSAndy Adamson encode_nops(&hdr); 613123ec6965SJ. Bruce Fields } 613205d564feSAndy Adamson 613323ec6965SJ. Bruce Fields /* 613423ec6965SJ. Bruce Fields * Decode SETACL response 613523ec6965SJ. Bruce Fields */ 613623ec6965SJ. Bruce Fields static int 6137bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 613873c403a9SBenny Halevy struct nfs_setaclres *res) 613923ec6965SJ. Bruce Fields { 614023ec6965SJ. Bruce Fields struct compound_hdr hdr; 614123ec6965SJ. Bruce Fields int status; 614223ec6965SJ. Bruce Fields 6143bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 614423ec6965SJ. Bruce Fields if (status) 614523ec6965SJ. Bruce Fields goto out; 6146bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61479b7b9fccSAndy Adamson if (status) 61489b7b9fccSAndy Adamson goto out; 6149bf269551SChuck Lever status = decode_putfh(xdr); 615023ec6965SJ. Bruce Fields if (status) 615123ec6965SJ. Bruce Fields goto out; 6152bf269551SChuck Lever status = decode_setattr(xdr); 615323ec6965SJ. Bruce Fields out: 615423ec6965SJ. Bruce Fields return status; 615523ec6965SJ. Bruce Fields } 61561da177e4SLinus Torvalds 61571da177e4SLinus Torvalds /* 6158029d105eSJ. Bruce Fields * Decode GETACL response 6159029d105eSJ. Bruce Fields */ 6160029d105eSJ. Bruce Fields static int 6161bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6162663c79b3SBenny Halevy struct nfs_getaclres *res) 6163029d105eSJ. Bruce Fields { 6164029d105eSJ. Bruce Fields struct compound_hdr hdr; 6165029d105eSJ. Bruce Fields int status; 6166029d105eSJ. Bruce Fields 6167331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6168331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6169331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6170331818f1STrond Myklebust } 6171bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6172029d105eSJ. Bruce Fields if (status) 6173029d105eSJ. Bruce Fields goto out; 6174bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61759b7b9fccSAndy Adamson if (status) 61769b7b9fccSAndy Adamson goto out; 6177bf269551SChuck Lever status = decode_putfh(xdr); 6178029d105eSJ. Bruce Fields if (status) 6179029d105eSJ. Bruce Fields goto out; 6180bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6181029d105eSJ. Bruce Fields 6182029d105eSJ. Bruce Fields out: 6183029d105eSJ. Bruce Fields return status; 6184029d105eSJ. Bruce Fields } 6185029d105eSJ. Bruce Fields 6186029d105eSJ. Bruce Fields /* 61871da177e4SLinus Torvalds * Decode CLOSE response 61881da177e4SLinus Torvalds */ 6189bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6190bf269551SChuck Lever struct nfs_closeres *res) 61911da177e4SLinus Torvalds { 61921da177e4SLinus Torvalds struct compound_hdr hdr; 61931da177e4SLinus Torvalds int status; 61941da177e4SLinus Torvalds 6195bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61961da177e4SLinus Torvalds if (status) 61971da177e4SLinus Torvalds goto out; 6198bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61999b7b9fccSAndy Adamson if (status) 62009b7b9fccSAndy Adamson goto out; 6201bf269551SChuck Lever status = decode_putfh(xdr); 62021da177e4SLinus Torvalds if (status) 62031da177e4SLinus Torvalds goto out; 6204bf269551SChuck Lever status = decode_close(xdr, res); 6205516a6af6STrond Myklebust if (status != 0) 6206516a6af6STrond Myklebust goto out; 6207516a6af6STrond Myklebust /* 6208516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6209516a6af6STrond Myklebust * in which case the getattr call will fail with 6210516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6211516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6212516a6af6STrond Myklebust */ 62136926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62141da177e4SLinus Torvalds out: 62151da177e4SLinus Torvalds return status; 62161da177e4SLinus Torvalds } 62171da177e4SLinus Torvalds 62181da177e4SLinus Torvalds /* 62191da177e4SLinus Torvalds * Decode OPEN response 62201da177e4SLinus Torvalds */ 6221bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6222bf269551SChuck Lever struct nfs_openres *res) 62231da177e4SLinus Torvalds { 62241da177e4SLinus Torvalds struct compound_hdr hdr; 62251da177e4SLinus Torvalds int status; 62261da177e4SLinus Torvalds 6227bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62281da177e4SLinus Torvalds if (status) 62291da177e4SLinus Torvalds goto out; 6230bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62319b7b9fccSAndy Adamson if (status) 62329b7b9fccSAndy Adamson goto out; 6233bf269551SChuck Lever status = decode_putfh(xdr); 62341da177e4SLinus Torvalds if (status) 62351da177e4SLinus Torvalds goto out; 6236bf269551SChuck Lever status = decode_open(xdr, res); 62371da177e4SLinus Torvalds if (status) 62381da177e4SLinus Torvalds goto out; 623901913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 624001913b49SWeston Andros Adamson if (status) 62411da177e4SLinus Torvalds goto out; 6242ae2bb032SWeston Andros Adamson if (res->access_request) 62436168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 624490ff0c54STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62451da177e4SLinus Torvalds out: 62461da177e4SLinus Torvalds return status; 62471da177e4SLinus Torvalds } 62481da177e4SLinus Torvalds 62491da177e4SLinus Torvalds /* 62501da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 62511da177e4SLinus Torvalds */ 6252bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6253bf269551SChuck Lever struct xdr_stream *xdr, 6254bf269551SChuck Lever struct nfs_open_confirmres *res) 62551da177e4SLinus Torvalds { 62561da177e4SLinus Torvalds struct compound_hdr hdr; 62571da177e4SLinus Torvalds int status; 62581da177e4SLinus Torvalds 6259bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62601da177e4SLinus Torvalds if (status) 62611da177e4SLinus Torvalds goto out; 6262bf269551SChuck Lever status = decode_putfh(xdr); 62631da177e4SLinus Torvalds if (status) 62641da177e4SLinus Torvalds goto out; 6265bf269551SChuck Lever status = decode_open_confirm(xdr, res); 62661da177e4SLinus Torvalds out: 62671da177e4SLinus Torvalds return status; 62681da177e4SLinus Torvalds } 62691da177e4SLinus Torvalds 62701da177e4SLinus Torvalds /* 62711da177e4SLinus Torvalds * Decode OPEN response 62721da177e4SLinus Torvalds */ 6273bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6274bf269551SChuck Lever struct xdr_stream *xdr, 6275bf269551SChuck Lever struct nfs_openres *res) 62761da177e4SLinus Torvalds { 62771da177e4SLinus Torvalds struct compound_hdr hdr; 62781da177e4SLinus Torvalds int status; 62791da177e4SLinus Torvalds 6280bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62811da177e4SLinus Torvalds if (status) 62821da177e4SLinus Torvalds goto out; 6283bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62849b7b9fccSAndy Adamson if (status) 62859b7b9fccSAndy Adamson goto out; 6286bf269551SChuck Lever status = decode_putfh(xdr); 62871da177e4SLinus Torvalds if (status) 62881da177e4SLinus Torvalds goto out; 6289bf269551SChuck Lever status = decode_open(xdr, res); 6290864472e9STrond Myklebust if (status) 6291864472e9STrond Myklebust goto out; 6292ae2bb032SWeston Andros Adamson if (res->access_request) 62936168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 62946926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62951da177e4SLinus Torvalds out: 62961da177e4SLinus Torvalds return status; 62971da177e4SLinus Torvalds } 62981da177e4SLinus Torvalds 62991da177e4SLinus Torvalds /* 63001da177e4SLinus Torvalds * Decode SETATTR response 63011da177e4SLinus Torvalds */ 6302bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6303bf269551SChuck Lever struct xdr_stream *xdr, 6304bf269551SChuck Lever struct nfs_setattrres *res) 63051da177e4SLinus Torvalds { 63061da177e4SLinus Torvalds struct compound_hdr hdr; 63071da177e4SLinus Torvalds int status; 63081da177e4SLinus Torvalds 6309bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63101da177e4SLinus Torvalds if (status) 63111da177e4SLinus Torvalds goto out; 6312bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63139b7b9fccSAndy Adamson if (status) 63149b7b9fccSAndy Adamson goto out; 6315bf269551SChuck Lever status = decode_putfh(xdr); 63161da177e4SLinus Torvalds if (status) 63171da177e4SLinus Torvalds goto out; 6318bf269551SChuck Lever status = decode_setattr(xdr); 63191da177e4SLinus Torvalds if (status) 63201da177e4SLinus Torvalds goto out; 63216926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63221da177e4SLinus Torvalds out: 63231da177e4SLinus Torvalds return status; 63241da177e4SLinus Torvalds } 63251da177e4SLinus Torvalds 63261da177e4SLinus Torvalds /* 63271da177e4SLinus Torvalds * Decode LOCK response 63281da177e4SLinus Torvalds */ 6329bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6330bf269551SChuck Lever struct nfs_lock_res *res) 63311da177e4SLinus Torvalds { 63321da177e4SLinus Torvalds struct compound_hdr hdr; 63331da177e4SLinus Torvalds int status; 63341da177e4SLinus Torvalds 6335bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63361da177e4SLinus Torvalds if (status) 63371da177e4SLinus Torvalds goto out; 6338bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63399b7b9fccSAndy Adamson if (status) 63409b7b9fccSAndy Adamson goto out; 6341bf269551SChuck Lever status = decode_putfh(xdr); 63421da177e4SLinus Torvalds if (status) 63431da177e4SLinus Torvalds goto out; 6344bf269551SChuck Lever status = decode_lock(xdr, res); 63451da177e4SLinus Torvalds out: 63461da177e4SLinus Torvalds return status; 63471da177e4SLinus Torvalds } 63481da177e4SLinus Torvalds 63491da177e4SLinus Torvalds /* 63501da177e4SLinus Torvalds * Decode LOCKT response 63511da177e4SLinus Torvalds */ 6352bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6353bf269551SChuck Lever struct nfs_lockt_res *res) 63541da177e4SLinus Torvalds { 63551da177e4SLinus Torvalds struct compound_hdr hdr; 63561da177e4SLinus Torvalds int status; 63571da177e4SLinus Torvalds 6358bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63591da177e4SLinus Torvalds if (status) 63601da177e4SLinus Torvalds goto out; 6361bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63629b7b9fccSAndy Adamson if (status) 63639b7b9fccSAndy Adamson goto out; 6364bf269551SChuck Lever status = decode_putfh(xdr); 63651da177e4SLinus Torvalds if (status) 63661da177e4SLinus Torvalds goto out; 6367bf269551SChuck Lever status = decode_lockt(xdr, res); 63681da177e4SLinus Torvalds out: 63691da177e4SLinus Torvalds return status; 63701da177e4SLinus Torvalds } 63711da177e4SLinus Torvalds 63721da177e4SLinus Torvalds /* 63731da177e4SLinus Torvalds * Decode LOCKU response 63741da177e4SLinus Torvalds */ 6375bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6376bf269551SChuck Lever struct nfs_locku_res *res) 63771da177e4SLinus Torvalds { 63781da177e4SLinus Torvalds struct compound_hdr hdr; 63791da177e4SLinus Torvalds int status; 63801da177e4SLinus Torvalds 6381bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63821da177e4SLinus Torvalds if (status) 63831da177e4SLinus Torvalds goto out; 6384bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63859b7b9fccSAndy Adamson if (status) 63869b7b9fccSAndy Adamson goto out; 6387bf269551SChuck Lever status = decode_putfh(xdr); 63881da177e4SLinus Torvalds if (status) 63891da177e4SLinus Torvalds goto out; 6390bf269551SChuck Lever status = decode_locku(xdr, res); 63911da177e4SLinus Torvalds out: 63921da177e4SLinus Torvalds return status; 63931da177e4SLinus Torvalds } 63941da177e4SLinus Torvalds 6395bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6396bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6397d3c7b7ccSTrond Myklebust { 6398d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6399d3c7b7ccSTrond Myklebust int status; 6400d3c7b7ccSTrond Myklebust 6401bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6402d3c7b7ccSTrond Myklebust if (!status) 6403bf269551SChuck Lever status = decode_release_lockowner(xdr); 6404d3c7b7ccSTrond Myklebust return status; 6405d3c7b7ccSTrond Myklebust } 6406d3c7b7ccSTrond Myklebust 64071da177e4SLinus Torvalds /* 64081da177e4SLinus Torvalds * Decode READLINK response 64091da177e4SLinus Torvalds */ 6410bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6411bf269551SChuck Lever struct xdr_stream *xdr, 6412f50c7000SBenny Halevy struct nfs4_readlink_res *res) 64131da177e4SLinus Torvalds { 64141da177e4SLinus Torvalds struct compound_hdr hdr; 64151da177e4SLinus Torvalds int status; 64161da177e4SLinus Torvalds 6417bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64181da177e4SLinus Torvalds if (status) 64191da177e4SLinus Torvalds goto out; 6420bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64219b7b9fccSAndy Adamson if (status) 64229b7b9fccSAndy Adamson goto out; 6423bf269551SChuck Lever status = decode_putfh(xdr); 64241da177e4SLinus Torvalds if (status) 64251da177e4SLinus Torvalds goto out; 6426bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 64271da177e4SLinus Torvalds out: 64281da177e4SLinus Torvalds return status; 64291da177e4SLinus Torvalds } 64301da177e4SLinus Torvalds 64311da177e4SLinus Torvalds /* 64321da177e4SLinus Torvalds * Decode READDIR response 64331da177e4SLinus Torvalds */ 6434bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6435bf269551SChuck Lever struct nfs4_readdir_res *res) 64361da177e4SLinus Torvalds { 64371da177e4SLinus Torvalds struct compound_hdr hdr; 64381da177e4SLinus Torvalds int status; 64391da177e4SLinus Torvalds 6440bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64411da177e4SLinus Torvalds if (status) 64421da177e4SLinus Torvalds goto out; 6443bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64449b7b9fccSAndy Adamson if (status) 64459b7b9fccSAndy Adamson goto out; 6446bf269551SChuck Lever status = decode_putfh(xdr); 64471da177e4SLinus Torvalds if (status) 64481da177e4SLinus Torvalds goto out; 6449bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 64501da177e4SLinus Torvalds out: 64511da177e4SLinus Torvalds return status; 64521da177e4SLinus Torvalds } 64531da177e4SLinus Torvalds 64541da177e4SLinus Torvalds /* 64551da177e4SLinus Torvalds * Decode Read response 64561da177e4SLinus Torvalds */ 6457bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6458bf269551SChuck Lever struct nfs_readres *res) 64591da177e4SLinus Torvalds { 64601da177e4SLinus Torvalds struct compound_hdr hdr; 64611da177e4SLinus Torvalds int status; 64621da177e4SLinus Torvalds 6463bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64641da177e4SLinus Torvalds if (status) 64651da177e4SLinus Torvalds goto out; 6466bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64679b7b9fccSAndy Adamson if (status) 64689b7b9fccSAndy Adamson goto out; 6469bf269551SChuck Lever status = decode_putfh(xdr); 64701da177e4SLinus Torvalds if (status) 64711da177e4SLinus Torvalds goto out; 6472bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 64731da177e4SLinus Torvalds if (!status) 64741da177e4SLinus Torvalds status = res->count; 64751da177e4SLinus Torvalds out: 64761da177e4SLinus Torvalds return status; 64771da177e4SLinus Torvalds } 64781da177e4SLinus Torvalds 64791da177e4SLinus Torvalds /* 64801da177e4SLinus Torvalds * Decode WRITE response 64811da177e4SLinus Torvalds */ 6482bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6483bf269551SChuck Lever struct nfs_writeres *res) 64841da177e4SLinus Torvalds { 64851da177e4SLinus Torvalds struct compound_hdr hdr; 64861da177e4SLinus Torvalds int status; 64871da177e4SLinus Torvalds 6488bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64891da177e4SLinus Torvalds if (status) 64901da177e4SLinus Torvalds goto out; 6491bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64929b7b9fccSAndy Adamson if (status) 64939b7b9fccSAndy Adamson goto out; 6494bf269551SChuck Lever status = decode_putfh(xdr); 64951da177e4SLinus Torvalds if (status) 64961da177e4SLinus Torvalds goto out; 6497bf269551SChuck Lever status = decode_write(xdr, res); 64984f9838c7STrond Myklebust if (status) 64994f9838c7STrond Myklebust goto out; 65007ffd1064SFred Isaman if (res->fattr) 65016926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 65021da177e4SLinus Torvalds if (!status) 65031da177e4SLinus Torvalds status = res->count; 65041da177e4SLinus Torvalds out: 65051da177e4SLinus Torvalds return status; 65061da177e4SLinus Torvalds } 65071da177e4SLinus Torvalds 65081da177e4SLinus Torvalds /* 65091da177e4SLinus Torvalds * Decode COMMIT response 65101da177e4SLinus Torvalds */ 6511bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 65120b7c0153SFred Isaman struct nfs_commitres *res) 65131da177e4SLinus Torvalds { 65141da177e4SLinus Torvalds struct compound_hdr hdr; 65151da177e4SLinus Torvalds int status; 65161da177e4SLinus Torvalds 6517bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65181da177e4SLinus Torvalds if (status) 65191da177e4SLinus Torvalds goto out; 6520bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65219b7b9fccSAndy Adamson if (status) 65229b7b9fccSAndy Adamson goto out; 6523bf269551SChuck Lever status = decode_putfh(xdr); 65241da177e4SLinus Torvalds if (status) 65251da177e4SLinus Torvalds goto out; 6526bf269551SChuck Lever status = decode_commit(xdr, res); 65271da177e4SLinus Torvalds out: 65281da177e4SLinus Torvalds return status; 65291da177e4SLinus Torvalds } 65301da177e4SLinus Torvalds 65311da177e4SLinus Torvalds /* 65328b173218SRicardo Labiaga * Decode FSINFO response 65331da177e4SLinus Torvalds */ 6534bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 65353dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 65361da177e4SLinus Torvalds { 65371da177e4SLinus Torvalds struct compound_hdr hdr; 65381da177e4SLinus Torvalds int status; 65391da177e4SLinus Torvalds 6540bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65411da177e4SLinus Torvalds if (!status) 6542bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65439b7b9fccSAndy Adamson if (!status) 6544bf269551SChuck Lever status = decode_putfh(xdr); 65451da177e4SLinus Torvalds if (!status) 6546bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 65471da177e4SLinus Torvalds return status; 65481da177e4SLinus Torvalds } 65491da177e4SLinus Torvalds 65501da177e4SLinus Torvalds /* 65518b173218SRicardo Labiaga * Decode PATHCONF response 65521da177e4SLinus Torvalds */ 6553bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6554d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 65551da177e4SLinus Torvalds { 65561da177e4SLinus Torvalds struct compound_hdr hdr; 65571da177e4SLinus Torvalds int status; 65581da177e4SLinus Torvalds 6559bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65601da177e4SLinus Torvalds if (!status) 6561bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65629b7b9fccSAndy Adamson if (!status) 6563bf269551SChuck Lever status = decode_putfh(xdr); 65641da177e4SLinus Torvalds if (!status) 6565bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 65661da177e4SLinus Torvalds return status; 65671da177e4SLinus Torvalds } 65681da177e4SLinus Torvalds 65691da177e4SLinus Torvalds /* 65708b173218SRicardo Labiaga * Decode STATFS response 65711da177e4SLinus Torvalds */ 6572bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 657324ad148aSBenny Halevy struct nfs4_statfs_res *res) 65741da177e4SLinus Torvalds { 65751da177e4SLinus Torvalds struct compound_hdr hdr; 65761da177e4SLinus Torvalds int status; 65771da177e4SLinus Torvalds 6578bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65791da177e4SLinus Torvalds if (!status) 6580bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65819b7b9fccSAndy Adamson if (!status) 6582bf269551SChuck Lever status = decode_putfh(xdr); 65831da177e4SLinus Torvalds if (!status) 6584bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 65851da177e4SLinus Torvalds return status; 65861da177e4SLinus Torvalds } 65871da177e4SLinus Torvalds 65881da177e4SLinus Torvalds /* 65898b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65901da177e4SLinus Torvalds */ 6591bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6592bf269551SChuck Lever struct xdr_stream *xdr, 6593bf269551SChuck Lever struct nfs4_server_caps_res *res) 65941da177e4SLinus Torvalds { 65951da177e4SLinus Torvalds struct compound_hdr hdr; 65961da177e4SLinus Torvalds int status; 65971da177e4SLinus Torvalds 6598bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65999b7b9fccSAndy Adamson if (status) 66009b7b9fccSAndy Adamson goto out; 6601bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66029b7b9fccSAndy Adamson if (status) 66031da177e4SLinus Torvalds goto out; 6604bf269551SChuck Lever status = decode_putfh(xdr); 6605bf269551SChuck Lever if (status) 66061da177e4SLinus Torvalds goto out; 6607bf269551SChuck Lever status = decode_server_caps(xdr, res); 66081da177e4SLinus Torvalds out: 66091da177e4SLinus Torvalds return status; 66101da177e4SLinus Torvalds } 66111da177e4SLinus Torvalds 66121da177e4SLinus Torvalds /* 66131da177e4SLinus Torvalds * Decode RENEW response 66141da177e4SLinus Torvalds */ 6615bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6616bf269551SChuck Lever void *__unused) 66171da177e4SLinus Torvalds { 66181da177e4SLinus Torvalds struct compound_hdr hdr; 66191da177e4SLinus Torvalds int status; 66201da177e4SLinus Torvalds 6621bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66221da177e4SLinus Torvalds if (!status) 6623bf269551SChuck Lever status = decode_renew(xdr); 66241da177e4SLinus Torvalds return status; 66251da177e4SLinus Torvalds } 66261da177e4SLinus Torvalds 66271da177e4SLinus Torvalds /* 66288b173218SRicardo Labiaga * Decode SETCLIENTID response 66291da177e4SLinus Torvalds */ 6630bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6631bf269551SChuck Lever struct xdr_stream *xdr, 6632bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 66331da177e4SLinus Torvalds { 66341da177e4SLinus Torvalds struct compound_hdr hdr; 66351da177e4SLinus Torvalds int status; 66361da177e4SLinus Torvalds 6637bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66381da177e4SLinus Torvalds if (!status) 6639bf269551SChuck Lever status = decode_setclientid(xdr, res); 66401da177e4SLinus Torvalds return status; 66411da177e4SLinus Torvalds } 66421da177e4SLinus Torvalds 66431da177e4SLinus Torvalds /* 66448b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 66451da177e4SLinus Torvalds */ 6646bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6647bf269551SChuck Lever struct xdr_stream *xdr, 6648bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 66491da177e4SLinus Torvalds { 66501da177e4SLinus Torvalds struct compound_hdr hdr; 66511da177e4SLinus Torvalds int status; 66521da177e4SLinus Torvalds 6653bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66541da177e4SLinus Torvalds if (!status) 6655bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 66561da177e4SLinus Torvalds if (!status) 6657bf269551SChuck Lever status = decode_putrootfh(xdr); 66581da177e4SLinus Torvalds if (!status) 6659bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 66601da177e4SLinus Torvalds return status; 66611da177e4SLinus Torvalds } 66621da177e4SLinus Torvalds 66631da177e4SLinus Torvalds /* 66648b173218SRicardo Labiaga * Decode DELEGRETURN response 66651da177e4SLinus Torvalds */ 6666bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6667bf269551SChuck Lever struct xdr_stream *xdr, 6668bf269551SChuck Lever struct nfs4_delegreturnres *res) 66691da177e4SLinus Torvalds { 66701da177e4SLinus Torvalds struct compound_hdr hdr; 66711da177e4SLinus Torvalds int status; 66721da177e4SLinus Torvalds 6673bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66749b7b9fccSAndy Adamson if (status) 66759b7b9fccSAndy Adamson goto out; 6676bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66779b7b9fccSAndy Adamson if (status) 6678fa178f29STrond Myklebust goto out; 6679bf269551SChuck Lever status = decode_putfh(xdr); 6680fa178f29STrond Myklebust if (status != 0) 6681fa178f29STrond Myklebust goto out; 6682e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6683556ae3bbSJeff Layton if (status != 0) 6684556ae3bbSJeff Layton goto out; 6685e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6686fa178f29STrond Myklebust out: 66871da177e4SLinus Torvalds return status; 66881da177e4SLinus Torvalds } 66891da177e4SLinus Torvalds 6690683b57b4STrond Myklebust /* 66918b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6692683b57b4STrond Myklebust */ 6693bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6694bf269551SChuck Lever struct xdr_stream *xdr, 669522958463SBenny Halevy struct nfs4_fs_locations_res *res) 6696683b57b4STrond Myklebust { 6697683b57b4STrond Myklebust struct compound_hdr hdr; 6698683b57b4STrond Myklebust int status; 6699683b57b4STrond Myklebust 6700bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67019b7b9fccSAndy Adamson if (status) 67029b7b9fccSAndy Adamson goto out; 6703bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67049b7b9fccSAndy Adamson if (status) 6705683b57b4STrond Myklebust goto out; 6706bf269551SChuck Lever status = decode_putfh(xdr); 6707bf269551SChuck Lever if (status) 6708683b57b4STrond Myklebust goto out; 6709bf269551SChuck Lever status = decode_lookup(xdr); 6710bf269551SChuck Lever if (status) 6711683b57b4STrond Myklebust goto out; 6712bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 67138b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 67148b7e3f49STrond Myklebust NULL, res->fs_locations, 67156926afd1STrond Myklebust res->fs_locations->server); 6716683b57b4STrond Myklebust out: 6717683b57b4STrond Myklebust return status; 6718683b57b4STrond Myklebust } 6719683b57b4STrond Myklebust 67205a5ea0d4SBryan Schumaker /* 67215a5ea0d4SBryan Schumaker * Decode SECINFO response 67225a5ea0d4SBryan Schumaker */ 67235a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 67245a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 67255a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 67265a5ea0d4SBryan Schumaker { 67275a5ea0d4SBryan Schumaker struct compound_hdr hdr; 67285a5ea0d4SBryan Schumaker int status; 67295a5ea0d4SBryan Schumaker 67305a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 67315a5ea0d4SBryan Schumaker if (status) 67325a5ea0d4SBryan Schumaker goto out; 67335a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 67345a5ea0d4SBryan Schumaker if (status) 67355a5ea0d4SBryan Schumaker goto out; 67365a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 67375a5ea0d4SBryan Schumaker if (status) 67385a5ea0d4SBryan Schumaker goto out; 67395a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 67405a5ea0d4SBryan Schumaker out: 67415a5ea0d4SBryan Schumaker return status; 67425a5ea0d4SBryan Schumaker } 67435a5ea0d4SBryan Schumaker 674499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 674599fe60d0SBenny Halevy /* 67467c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 67477c44f1aeSWeston Andros Adamson */ 67487c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 67497c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 67507c44f1aeSWeston Andros Adamson void *res) 67517c44f1aeSWeston Andros Adamson { 67527c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 67537c44f1aeSWeston Andros Adamson int status; 67547c44f1aeSWeston Andros Adamson 67557c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 67567c44f1aeSWeston Andros Adamson if (!status) 67577c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 67587c44f1aeSWeston Andros Adamson return status; 67597c44f1aeSWeston Andros Adamson } 67607c44f1aeSWeston Andros Adamson 67617c44f1aeSWeston Andros Adamson /* 67628b173218SRicardo Labiaga * Decode EXCHANGE_ID response 676399fe60d0SBenny Halevy */ 6764bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6765bf269551SChuck Lever struct xdr_stream *xdr, 676699fe60d0SBenny Halevy void *res) 676799fe60d0SBenny Halevy { 676899fe60d0SBenny Halevy struct compound_hdr hdr; 676999fe60d0SBenny Halevy int status; 677099fe60d0SBenny Halevy 6771bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 677299fe60d0SBenny Halevy if (!status) 6773bf269551SChuck Lever status = decode_exchange_id(xdr, res); 677499fe60d0SBenny Halevy return status; 677599fe60d0SBenny Halevy } 67762050f0ccSAndy Adamson 67772050f0ccSAndy Adamson /* 67788b173218SRicardo Labiaga * Decode CREATE_SESSION response 6779fc931582SAndy Adamson */ 6780bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6781bf269551SChuck Lever struct xdr_stream *xdr, 6782fc931582SAndy Adamson struct nfs41_create_session_res *res) 6783fc931582SAndy Adamson { 6784fc931582SAndy Adamson struct compound_hdr hdr; 6785fc931582SAndy Adamson int status; 6786fc931582SAndy Adamson 6787bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6788fc931582SAndy Adamson if (!status) 6789bf269551SChuck Lever status = decode_create_session(xdr, res); 6790fc931582SAndy Adamson return status; 6791fc931582SAndy Adamson } 6792fc931582SAndy Adamson 6793fc931582SAndy Adamson /* 67948b173218SRicardo Labiaga * Decode DESTROY_SESSION response 67950f3e66c6SAndy Adamson */ 6796bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6797bf269551SChuck Lever struct xdr_stream *xdr, 6798bf269551SChuck Lever void *res) 67990f3e66c6SAndy Adamson { 68000f3e66c6SAndy Adamson struct compound_hdr hdr; 68010f3e66c6SAndy Adamson int status; 68020f3e66c6SAndy Adamson 6803bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68040f3e66c6SAndy Adamson if (!status) 6805bf269551SChuck Lever status = decode_destroy_session(xdr, res); 68060f3e66c6SAndy Adamson return status; 68070f3e66c6SAndy Adamson } 68080f3e66c6SAndy Adamson 68090f3e66c6SAndy Adamson /* 681066245539STrond Myklebust * Decode DESTROY_CLIENTID response 681166245539STrond Myklebust */ 681266245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 681366245539STrond Myklebust struct xdr_stream *xdr, 681466245539STrond Myklebust void *res) 681566245539STrond Myklebust { 681666245539STrond Myklebust struct compound_hdr hdr; 681766245539STrond Myklebust int status; 681866245539STrond Myklebust 681966245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 682066245539STrond Myklebust if (!status) 682166245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 682266245539STrond Myklebust return status; 682366245539STrond Myklebust } 682466245539STrond Myklebust 682566245539STrond Myklebust /* 68268b173218SRicardo Labiaga * Decode SEQUENCE response 6827fc01cea9SAndy Adamson */ 6828bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6829bf269551SChuck Lever struct xdr_stream *xdr, 6830fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6831fc01cea9SAndy Adamson { 6832fc01cea9SAndy Adamson struct compound_hdr hdr; 6833fc01cea9SAndy Adamson int status; 6834fc01cea9SAndy Adamson 6835bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6836fc01cea9SAndy Adamson if (!status) 6837bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6838fc01cea9SAndy Adamson return status; 6839fc01cea9SAndy Adamson } 6840fc01cea9SAndy Adamson 6841fc01cea9SAndy Adamson /* 68428b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 68432050f0ccSAndy Adamson */ 6844bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6845bf269551SChuck Lever struct xdr_stream *xdr, 68462050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 68472050f0ccSAndy Adamson { 68482050f0ccSAndy Adamson struct compound_hdr hdr; 68492050f0ccSAndy Adamson int status; 68502050f0ccSAndy Adamson 6851bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68522050f0ccSAndy Adamson if (!status) 6853bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 68542050f0ccSAndy Adamson if (!status) 6855bf269551SChuck Lever status = decode_putrootfh(xdr); 68562050f0ccSAndy Adamson if (!status) 6857bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 68582050f0ccSAndy Adamson return status; 68592050f0ccSAndy Adamson } 686018019753SRicardo Labiaga 686118019753SRicardo Labiaga /* 686218019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 686318019753SRicardo Labiaga */ 6864bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6865bf269551SChuck Lever struct xdr_stream *xdr, 686618019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 686718019753SRicardo Labiaga { 686818019753SRicardo Labiaga struct compound_hdr hdr; 686918019753SRicardo Labiaga int status; 687018019753SRicardo Labiaga 6871bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 687218019753SRicardo Labiaga if (!status) 6873bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 687418019753SRicardo Labiaga if (!status) 6875bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 687618019753SRicardo Labiaga return status; 687718019753SRicardo Labiaga } 6878b1f69b75SAndy Adamson 6879b1f69b75SAndy Adamson /* 68807f11d8d3SAndy Adamson * Decode GETDEVICELIST response 68817f11d8d3SAndy Adamson */ 68827f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 68837f11d8d3SAndy Adamson struct xdr_stream *xdr, 68847f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 68857f11d8d3SAndy Adamson { 68867f11d8d3SAndy Adamson struct compound_hdr hdr; 68877f11d8d3SAndy Adamson int status; 68887f11d8d3SAndy Adamson 68897f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 68907f11d8d3SAndy Adamson 68917f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 68927f11d8d3SAndy Adamson if (status != 0) 68937f11d8d3SAndy Adamson goto out; 68947f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 68957f11d8d3SAndy Adamson if (status != 0) 68967f11d8d3SAndy Adamson goto out; 68977f11d8d3SAndy Adamson status = decode_putfh(xdr); 68987f11d8d3SAndy Adamson if (status != 0) 68997f11d8d3SAndy Adamson goto out; 69007f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 69017f11d8d3SAndy Adamson out: 69027f11d8d3SAndy Adamson return status; 69037f11d8d3SAndy Adamson } 69047f11d8d3SAndy Adamson 69057f11d8d3SAndy Adamson /* 6906b1f69b75SAndy Adamson * Decode GETDEVINFO response 6907b1f69b75SAndy Adamson */ 6908bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6909bf269551SChuck Lever struct xdr_stream *xdr, 6910b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6911b1f69b75SAndy Adamson { 6912b1f69b75SAndy Adamson struct compound_hdr hdr; 6913b1f69b75SAndy Adamson int status; 6914b1f69b75SAndy Adamson 6915bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6916b1f69b75SAndy Adamson if (status != 0) 6917b1f69b75SAndy Adamson goto out; 6918bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6919b1f69b75SAndy Adamson if (status != 0) 6920b1f69b75SAndy Adamson goto out; 6921bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6922b1f69b75SAndy Adamson out: 6923b1f69b75SAndy Adamson return status; 6924b1f69b75SAndy Adamson } 6925b1f69b75SAndy Adamson 6926b1f69b75SAndy Adamson /* 6927b1f69b75SAndy Adamson * Decode LAYOUTGET response 6928b1f69b75SAndy Adamson */ 6929bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6930bf269551SChuck Lever struct xdr_stream *xdr, 6931b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6932b1f69b75SAndy Adamson { 6933b1f69b75SAndy Adamson struct compound_hdr hdr; 6934b1f69b75SAndy Adamson int status; 6935b1f69b75SAndy Adamson 6936bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6937b1f69b75SAndy Adamson if (status) 6938b1f69b75SAndy Adamson goto out; 6939bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6940b1f69b75SAndy Adamson if (status) 6941b1f69b75SAndy Adamson goto out; 6942bf269551SChuck Lever status = decode_putfh(xdr); 6943b1f69b75SAndy Adamson if (status) 6944b1f69b75SAndy Adamson goto out; 6945bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6946b1f69b75SAndy Adamson out: 6947b1f69b75SAndy Adamson return status; 6948b1f69b75SAndy Adamson } 6949863a3c6cSAndy Adamson 6950863a3c6cSAndy Adamson /* 6951cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6952cbe82603SBenny Halevy */ 6953cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6954cbe82603SBenny Halevy struct xdr_stream *xdr, 6955cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6956cbe82603SBenny Halevy { 6957cbe82603SBenny Halevy struct compound_hdr hdr; 6958cbe82603SBenny Halevy int status; 6959cbe82603SBenny Halevy 6960cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6961cbe82603SBenny Halevy if (status) 6962cbe82603SBenny Halevy goto out; 6963cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6964cbe82603SBenny Halevy if (status) 6965cbe82603SBenny Halevy goto out; 6966cbe82603SBenny Halevy status = decode_putfh(xdr); 6967cbe82603SBenny Halevy if (status) 6968cbe82603SBenny Halevy goto out; 6969cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6970cbe82603SBenny Halevy out: 6971cbe82603SBenny Halevy return status; 6972cbe82603SBenny Halevy } 6973cbe82603SBenny Halevy 6974cbe82603SBenny Halevy /* 6975863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6976863a3c6cSAndy Adamson */ 6977863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6978863a3c6cSAndy Adamson struct xdr_stream *xdr, 6979863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6980863a3c6cSAndy Adamson { 6981863a3c6cSAndy Adamson struct compound_hdr hdr; 6982863a3c6cSAndy Adamson int status; 6983863a3c6cSAndy Adamson 6984863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6985863a3c6cSAndy Adamson if (status) 6986863a3c6cSAndy Adamson goto out; 6987863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6988863a3c6cSAndy Adamson if (status) 6989863a3c6cSAndy Adamson goto out; 6990863a3c6cSAndy Adamson status = decode_putfh(xdr); 6991863a3c6cSAndy Adamson if (status) 6992863a3c6cSAndy Adamson goto out; 6993863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6994863a3c6cSAndy Adamson if (status) 6995863a3c6cSAndy Adamson goto out; 69966926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6997863a3c6cSAndy Adamson out: 6998863a3c6cSAndy Adamson return status; 6999863a3c6cSAndy Adamson } 7000fca78d6dSBryan Schumaker 7001fca78d6dSBryan Schumaker /* 7002fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7003fca78d6dSBryan Schumaker */ 7004fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7005fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7006fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 7007fca78d6dSBryan Schumaker { 7008fca78d6dSBryan Schumaker struct compound_hdr hdr; 7009fca78d6dSBryan Schumaker int status; 7010fca78d6dSBryan Schumaker 7011fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7012fca78d6dSBryan Schumaker if (status) 7013fca78d6dSBryan Schumaker goto out; 7014fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7015fca78d6dSBryan Schumaker if (status) 7016fca78d6dSBryan Schumaker goto out; 7017fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7018fca78d6dSBryan Schumaker if (status) 7019fca78d6dSBryan Schumaker goto out; 702031e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7021fca78d6dSBryan Schumaker out: 7022fca78d6dSBryan Schumaker return status; 7023fca78d6dSBryan Schumaker } 70247d974794SBryan Schumaker 70257d974794SBryan Schumaker /* 70267d974794SBryan Schumaker * Decode TEST_STATEID response 70277d974794SBryan Schumaker */ 70287d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 70297d974794SBryan Schumaker struct xdr_stream *xdr, 70307d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 70317d974794SBryan Schumaker { 70327d974794SBryan Schumaker struct compound_hdr hdr; 70337d974794SBryan Schumaker int status; 70347d974794SBryan Schumaker 70357d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70367d974794SBryan Schumaker if (status) 70377d974794SBryan Schumaker goto out; 70387d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70397d974794SBryan Schumaker if (status) 70407d974794SBryan Schumaker goto out; 70417d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 70427d974794SBryan Schumaker out: 70437d974794SBryan Schumaker return status; 70447d974794SBryan Schumaker } 70459aeda35fSBryan Schumaker 70469aeda35fSBryan Schumaker /* 70479aeda35fSBryan Schumaker * Decode FREE_STATEID response 70489aeda35fSBryan Schumaker */ 70499aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 70509aeda35fSBryan Schumaker struct xdr_stream *xdr, 70519aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 70529aeda35fSBryan Schumaker { 70539aeda35fSBryan Schumaker struct compound_hdr hdr; 70549aeda35fSBryan Schumaker int status; 70559aeda35fSBryan Schumaker 70569aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70579aeda35fSBryan Schumaker if (status) 70589aeda35fSBryan Schumaker goto out; 70599aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70609aeda35fSBryan Schumaker if (status) 70619aeda35fSBryan Schumaker goto out; 70629aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 70639aeda35fSBryan Schumaker out: 70649aeda35fSBryan Schumaker return status; 70659aeda35fSBryan Schumaker } 706699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 706799fe60d0SBenny Halevy 7068573c4e1eSChuck Lever /** 7069573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7070573c4e1eSChuck Lever * the local page cache. 7071573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7072573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7073573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7074573c4e1eSChuck Lever * 7075573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7076573c4e1eSChuck Lever * returned. 7077573c4e1eSChuck Lever * 7078573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7079573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7080573c4e1eSChuck Lever * on a directory already in our cache. 7081573c4e1eSChuck Lever */ 7082573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7083573c4e1eSChuck Lever int plus) 70841da177e4SLinus Torvalds { 7085256e48bbSTrond Myklebust unsigned int savep; 7086dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 70871da177e4SLinus Torvalds uint32_t len; 7088babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7089babddc72SBryan Schumaker if (unlikely(!p)) 7090babddc72SBryan Schumaker goto out_overflow; 7091c08e76d0SChuck Lever if (*p == xdr_zero) { 7092babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7093babddc72SBryan Schumaker if (unlikely(!p)) 7094babddc72SBryan Schumaker goto out_overflow; 7095c08e76d0SChuck Lever if (*p == xdr_zero) 7096573c4e1eSChuck Lever return -EAGAIN; 70971da177e4SLinus Torvalds entry->eof = 1; 7098573c4e1eSChuck Lever return -EBADCOOKIE; 70991da177e4SLinus Torvalds } 71001da177e4SLinus Torvalds 7101babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7102babddc72SBryan Schumaker if (unlikely(!p)) 7103babddc72SBryan Schumaker goto out_overflow; 71041da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 71051da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7106c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7107babddc72SBryan Schumaker 71089af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7109babddc72SBryan Schumaker if (unlikely(!p)) 7110babddc72SBryan Schumaker goto out_overflow; 71111da177e4SLinus Torvalds entry->name = (const char *) p; 71121da177e4SLinus Torvalds 71131da177e4SLinus Torvalds /* 71141da177e4SLinus Torvalds * In case the server doesn't return an inode number, 71151da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 71161da177e4SLinus Torvalds * since glibc seems to choke on it...) 71171da177e4SLinus Torvalds */ 71181da177e4SLinus Torvalds entry->ino = 1; 71194f082222STrond Myklebust entry->fattr->valid = 0; 71201da177e4SLinus Torvalds 71219af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7122babddc72SBryan Schumaker goto out_overflow; 71239af8c222STrond Myklebust 7124256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7125babddc72SBryan Schumaker goto out_overflow; 71269af8c222STrond Myklebust 7127573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 71288b7e3f49STrond Myklebust NULL, entry->server) < 0) 7129babddc72SBryan Schumaker goto out_overflow; 713028331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 713128331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 713228331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 713382f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 71349af8c222STrond Myklebust 71350b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 71360b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 71370b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 71380b26a0bfSTrond Myklebust 7139573c4e1eSChuck Lever return 0; 7140babddc72SBryan Schumaker 7141babddc72SBryan Schumaker out_overflow: 7142babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7143573c4e1eSChuck Lever return -EAGAIN; 71441da177e4SLinus Torvalds } 71451da177e4SLinus Torvalds 71461da177e4SLinus Torvalds /* 71471da177e4SLinus Torvalds * We need to translate between nfs status return values and 71481da177e4SLinus Torvalds * the local errno values which may not be the same. 71491da177e4SLinus Torvalds */ 71501da177e4SLinus Torvalds static struct { 71511da177e4SLinus Torvalds int stat; 71521da177e4SLinus Torvalds int errno; 71531da177e4SLinus Torvalds } nfs_errtbl[] = { 71541da177e4SLinus Torvalds { NFS4_OK, 0 }, 7155856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7156856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7157856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7158856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7159856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7160856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7161856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7162856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7163856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7164856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7165856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7166856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7167856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7168856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7169856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7170856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7171856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7172856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7173856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7174856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7175856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7176856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7177fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7178856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7179856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7180856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7181856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7182856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7183856dff3dSBenny Halevy { -1, -EIO } 71841da177e4SLinus Torvalds }; 71851da177e4SLinus Torvalds 71861da177e4SLinus Torvalds /* 71871da177e4SLinus Torvalds * Convert an NFS error code to a local one. 71881da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 71891da177e4SLinus Torvalds */ 71901da177e4SLinus Torvalds static int 71910a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 71921da177e4SLinus Torvalds { 71931da177e4SLinus Torvalds int i; 71941da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 71951da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 71961da177e4SLinus Torvalds return nfs_errtbl[i].errno; 71971da177e4SLinus Torvalds } 71981da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 71991da177e4SLinus Torvalds /* The server is looney tunes. */ 7200fdcb4577STrond Myklebust return -EREMOTEIO; 72011da177e4SLinus Torvalds } 72021da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 72031da177e4SLinus Torvalds * handle it. 72041da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 72051da177e4SLinus Torvalds * not conflict with native Linux error codes. 72061da177e4SLinus Torvalds */ 7207856dff3dSBenny Halevy return -stat; 72081da177e4SLinus Torvalds } 72091da177e4SLinus Torvalds 72101da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 72111da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 72121da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 72139f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7214bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 72152bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 72162bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7217cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7218cc0175c1SChuck Lever .p_name = #proc, \ 72191da177e4SLinus Torvalds } 72201da177e4SLinus Torvalds 72211da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 72221da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 72231da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 72241da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 72251da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 72261da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 72271da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 72281da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 72291da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 72301da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 72311da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 72321da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 72331da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 72341da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 72351da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 72361da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 72371da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 72381da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 72391da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 72401da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 72411da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 72421da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 72431da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 72441da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 72451da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 72461da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 72471da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 72481da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 72491da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 72501da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 72511da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 72521da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7253029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 725423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7255683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7256d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 72575a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 725899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 725999fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7260fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 72610f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7262fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 72632050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 726418019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7265b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7266b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7267863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7268cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7269fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 72707d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 72719aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 72727f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 7273ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7274ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 727566245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 727699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 72771da177e4SLinus Torvalds }; 72781da177e4SLinus Torvalds 7279a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 72801da177e4SLinus Torvalds .number = 4, 7281e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 72821da177e4SLinus Torvalds .procs = nfs4_procedures 72831da177e4SLinus Torvalds }; 72841da177e4SLinus Torvalds 72851da177e4SLinus Torvalds /* 72861da177e4SLinus Torvalds * Local variables: 72871da177e4SLinus Torvalds * c-basic-offset: 8 72881da177e4SLinus Torvalds * End: 72891da177e4SLinus Torvalds */ 7290