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 + \ 53383ca7f5aSChuck Lever encode_setclientid_confirm_maxsz) 5341da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5351da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 53683ca7f5aSChuck Lever decode_setclientid_confirm_maxsz) 5371da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5389b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5391da177e4SLinus Torvalds encode_putfh_maxsz + \ 5409104a55dSTrond Myklebust encode_lock_maxsz) 5411da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5431da177e4SLinus Torvalds decode_putfh_maxsz + \ 5449104a55dSTrond Myklebust decode_lock_maxsz) 5451da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5469b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5471da177e4SLinus Torvalds encode_putfh_maxsz + \ 5489104a55dSTrond Myklebust encode_lockt_maxsz) 5499104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5519104a55dSTrond Myklebust decode_putfh_maxsz + \ 5529104a55dSTrond Myklebust decode_lockt_maxsz) 5531da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5549b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5551da177e4SLinus Torvalds encode_putfh_maxsz + \ 5569104a55dSTrond Myklebust encode_locku_maxsz) 5571da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5589b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5591da177e4SLinus Torvalds decode_putfh_maxsz + \ 5609104a55dSTrond Myklebust decode_locku_maxsz) 561d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 562d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 563d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 564d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 565d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 566d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5671da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5689b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5691da177e4SLinus Torvalds encode_putfh_maxsz + \ 57076b32999STrond Myklebust encode_access_maxsz + \ 57176b32999STrond Myklebust encode_getattr_maxsz) 5721da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5739b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5741da177e4SLinus Torvalds decode_putfh_maxsz + \ 57576b32999STrond Myklebust decode_access_maxsz + \ 57676b32999STrond Myklebust decode_getattr_maxsz) 5771da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5789b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5791da177e4SLinus Torvalds encode_putfh_maxsz + \ 5801da177e4SLinus Torvalds encode_getattr_maxsz) 5811da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5829b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5831da177e4SLinus Torvalds decode_putfh_maxsz + \ 5841da177e4SLinus Torvalds decode_getattr_maxsz) 5851da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5869b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5871da177e4SLinus Torvalds encode_putfh_maxsz + \ 5881da177e4SLinus Torvalds encode_lookup_maxsz + \ 5891da177e4SLinus Torvalds encode_getattr_maxsz + \ 5901da177e4SLinus Torvalds encode_getfh_maxsz) 5911da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5929b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5931da177e4SLinus Torvalds decode_putfh_maxsz + \ 594e6889620STrond Myklebust decode_lookup_maxsz + \ 5951da177e4SLinus Torvalds decode_getattr_maxsz + \ 5961da177e4SLinus Torvalds decode_getfh_maxsz) 5971da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5989b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5991da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6001da177e4SLinus Torvalds encode_getattr_maxsz + \ 6011da177e4SLinus Torvalds encode_getfh_maxsz) 6021da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6039b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6041da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6051da177e4SLinus Torvalds decode_getattr_maxsz + \ 6061da177e4SLinus Torvalds decode_getfh_maxsz) 6071da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6089b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6091da177e4SLinus Torvalds encode_putfh_maxsz + \ 610778d2817STrond Myklebust encode_remove_maxsz) 6111da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6129b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6131da177e4SLinus Torvalds decode_putfh_maxsz + \ 614778d2817STrond Myklebust decode_remove_maxsz) 6151da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6171da177e4SLinus Torvalds encode_putfh_maxsz + \ 6181da177e4SLinus Torvalds encode_savefh_maxsz + \ 6191da177e4SLinus Torvalds encode_putfh_maxsz + \ 620778d2817STrond Myklebust encode_rename_maxsz) 6211da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6229b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6231da177e4SLinus Torvalds decode_putfh_maxsz + \ 6241da177e4SLinus Torvalds decode_savefh_maxsz + \ 6251da177e4SLinus Torvalds decode_putfh_maxsz + \ 626778d2817STrond Myklebust decode_rename_maxsz) 6271da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6291da177e4SLinus Torvalds encode_putfh_maxsz + \ 6301da177e4SLinus Torvalds encode_savefh_maxsz + \ 6311da177e4SLinus Torvalds encode_putfh_maxsz + \ 63291ba2eeeSTrond Myklebust encode_link_maxsz + \ 63391ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 634a9f6991bSTrond Myklebust encode_getattr_maxsz) 6351da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6369b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6371da177e4SLinus Torvalds decode_putfh_maxsz + \ 6381da177e4SLinus Torvalds decode_savefh_maxsz + \ 6391da177e4SLinus Torvalds decode_putfh_maxsz + \ 64091ba2eeeSTrond Myklebust decode_link_maxsz + \ 64191ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 64291ba2eeeSTrond Myklebust decode_getattr_maxsz) 6431da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6449b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6451da177e4SLinus Torvalds encode_putfh_maxsz + \ 6461da177e4SLinus Torvalds encode_symlink_maxsz + \ 6471da177e4SLinus Torvalds encode_getattr_maxsz + \ 6481da177e4SLinus Torvalds encode_getfh_maxsz) 6491da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6511da177e4SLinus Torvalds decode_putfh_maxsz + \ 6521da177e4SLinus Torvalds decode_symlink_maxsz + \ 6531da177e4SLinus Torvalds decode_getattr_maxsz + \ 6541da177e4SLinus Torvalds decode_getfh_maxsz) 6551da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6569b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6571da177e4SLinus Torvalds encode_putfh_maxsz + \ 6581da177e4SLinus Torvalds encode_create_maxsz + \ 65956ae19f3STrond Myklebust encode_getfh_maxsz + \ 66056ae19f3STrond Myklebust encode_getattr_maxsz) 6611da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6629b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6631da177e4SLinus Torvalds decode_putfh_maxsz + \ 6641da177e4SLinus Torvalds decode_create_maxsz + \ 66556ae19f3STrond Myklebust decode_getfh_maxsz + \ 66656ae19f3STrond Myklebust decode_getattr_maxsz) 6671da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6689b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6691da177e4SLinus Torvalds encode_putfh_maxsz + \ 6701da177e4SLinus Torvalds encode_getattr_maxsz) 6711da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6729b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6731da177e4SLinus Torvalds decode_putfh_maxsz + \ 6741da177e4SLinus Torvalds decode_getattr_maxsz) 6751da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6769b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6771da177e4SLinus Torvalds encode_putfh_maxsz + \ 6789104a55dSTrond Myklebust encode_statfs_maxsz) 6791da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6811da177e4SLinus Torvalds decode_putfh_maxsz + \ 6829104a55dSTrond Myklebust decode_statfs_maxsz) 6831da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6849b7b9fccSAndy Adamson encode_sequence_maxsz + \ 685ab91f264STrond Myklebust encode_putfh_maxsz + \ 6861da177e4SLinus Torvalds encode_getattr_maxsz) 6871da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6889b7b9fccSAndy Adamson decode_sequence_maxsz + \ 689ab91f264STrond Myklebust decode_putfh_maxsz + \ 6901da177e4SLinus Torvalds decode_getattr_maxsz) 6911da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6931da177e4SLinus Torvalds encode_putfh_maxsz + \ 694fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 695fa178f29STrond Myklebust encode_getattr_maxsz) 6961da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 698fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 699fa178f29STrond Myklebust decode_getattr_maxsz) 700029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 702029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7039104a55dSTrond Myklebust encode_getacl_maxsz) 704029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7059b7b9fccSAndy Adamson decode_sequence_maxsz + \ 706029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7079104a55dSTrond Myklebust decode_getacl_maxsz) 70823ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 71023ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7119104a55dSTrond Myklebust encode_setacl_maxsz) 71223ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 71423ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7159104a55dSTrond Myklebust decode_setacl_maxsz) 716683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 717683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7189b7b9fccSAndy Adamson encode_sequence_maxsz + \ 719683b57b4STrond Myklebust encode_putfh_maxsz + \ 720e6889620STrond Myklebust encode_lookup_maxsz + \ 721e6889620STrond Myklebust encode_fs_locations_maxsz) 722683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 723683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7249b7b9fccSAndy Adamson decode_sequence_maxsz + \ 725683b57b4STrond Myklebust decode_putfh_maxsz + \ 726e6889620STrond Myklebust decode_lookup_maxsz + \ 727e6889620STrond Myklebust decode_fs_locations_maxsz) 7285a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7295a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7305a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7315a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7325a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7335a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7345a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7355a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 73699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7377c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7387c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7397c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7407c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7417c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7427c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 74399fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 74499fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 74599fe60d0SBenny Halevy encode_exchange_id_maxsz) 74699fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 74799fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 74899fe60d0SBenny Halevy decode_exchange_id_maxsz) 749fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 750fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 751fc931582SAndy Adamson encode_create_session_maxsz) 752fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 753fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 754fc931582SAndy Adamson decode_create_session_maxsz) 7550f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7560f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7570f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7580f3e66c6SAndy Adamson decode_destroy_session_maxsz) 75966245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 76066245539STrond Myklebust encode_destroy_clientid_maxsz) 76166245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 76266245539STrond Myklebust decode_destroy_clientid_maxsz) 763fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 764fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 765fc01cea9SAndy Adamson encode_sequence_maxsz) 766fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 767fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 768fc01cea9SAndy Adamson decode_sequence_maxsz) 7692050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7702050f0ccSAndy Adamson encode_sequence_maxsz + \ 7712050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7722050f0ccSAndy Adamson encode_fsinfo_maxsz) 7732050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7742050f0ccSAndy Adamson decode_sequence_maxsz + \ 7752050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7762050f0ccSAndy Adamson decode_fsinfo_maxsz) 77718019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 77818019753SRicardo Labiaga encode_sequence_maxsz + \ 77918019753SRicardo Labiaga encode_reclaim_complete_maxsz) 78018019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 78118019753SRicardo Labiaga decode_sequence_maxsz + \ 78218019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7837f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 7847f11d8d3SAndy Adamson encode_sequence_maxsz + \ 7857f11d8d3SAndy Adamson encode_putfh_maxsz + \ 7867f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 7877f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 7887f11d8d3SAndy Adamson decode_sequence_maxsz + \ 7897f11d8d3SAndy Adamson decode_putfh_maxsz + \ 7907f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 791b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 792b1f69b75SAndy Adamson encode_sequence_maxsz +\ 793b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 794b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 795b1f69b75SAndy Adamson decode_sequence_maxsz + \ 796b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 797b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 798b1f69b75SAndy Adamson encode_sequence_maxsz + \ 799b1f69b75SAndy Adamson encode_putfh_maxsz + \ 800b1f69b75SAndy Adamson encode_layoutget_maxsz) 801b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 802b1f69b75SAndy Adamson decode_sequence_maxsz + \ 803b1f69b75SAndy Adamson decode_putfh_maxsz + \ 804b1f69b75SAndy Adamson decode_layoutget_maxsz) 805863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 806863a3c6cSAndy Adamson encode_sequence_maxsz +\ 807863a3c6cSAndy Adamson encode_putfh_maxsz + \ 808863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 809863a3c6cSAndy Adamson encode_getattr_maxsz) 810863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 811863a3c6cSAndy Adamson decode_sequence_maxsz + \ 812863a3c6cSAndy Adamson decode_putfh_maxsz + \ 813863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 814863a3c6cSAndy Adamson decode_getattr_maxsz) 815cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 816cbe82603SBenny Halevy encode_sequence_maxsz + \ 817cbe82603SBenny Halevy encode_putfh_maxsz + \ 818cbe82603SBenny Halevy encode_layoutreturn_maxsz) 819cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 820cbe82603SBenny Halevy decode_sequence_maxsz + \ 821cbe82603SBenny Halevy decode_putfh_maxsz + \ 822cbe82603SBenny Halevy decode_layoutreturn_maxsz) 823fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 824fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 825fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 826fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 827fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 828fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 829fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 830fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8317d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8327d974794SBryan Schumaker encode_sequence_maxsz + \ 8337d974794SBryan Schumaker encode_test_stateid_maxsz) 8347d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8357d974794SBryan Schumaker decode_sequence_maxsz + \ 8367d974794SBryan Schumaker decode_test_stateid_maxsz) 8379aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8389aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8399aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8409aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8419aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8429aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8432449ea2eSAlexandros Batsakis 8442449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8452449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8462449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8472449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8482449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8492449ea2eSAlexandros Batsakis XDR_UNIT); 8502449ea2eSAlexandros Batsakis 8512449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8522449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8532449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8542449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8552449ea2eSAlexandros Batsakis XDR_UNIT); 85699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8571da177e4SLinus Torvalds 858bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 859bca79478STrond Myklebust [NF4BAD] = 0, 860bca79478STrond Myklebust [NF4REG] = S_IFREG, 861bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 862bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 863bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 864bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 865bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 866bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 867bca79478STrond Myklebust [NF4ATTRDIR] = 0, 868bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8691da177e4SLinus Torvalds }; 8701da177e4SLinus Torvalds 8711da177e4SLinus Torvalds struct compound_hdr { 8721da177e4SLinus Torvalds int32_t status; 8731da177e4SLinus Torvalds uint32_t nops; 874d017931cSAndy Adamson __be32 * nops_p; 8751da177e4SLinus Torvalds uint32_t taglen; 8761da177e4SLinus Torvalds char * tag; 8770c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 87866cc0429SBenny Halevy u32 minorversion; 8791da177e4SLinus Torvalds }; 8801da177e4SLinus Torvalds 88113c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 88213c65ce9SBenny Halevy { 88313c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 88413c65ce9SBenny Halevy BUG_ON(!p); 88513c65ce9SBenny Halevy return p; 88613c65ce9SBenny Halevy } 8871da177e4SLinus Torvalds 888cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 889cb17e556STrond Myklebust { 890cb17e556STrond Myklebust __be32 *p; 891cb17e556STrond Myklebust 892cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 893cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 894cb17e556STrond Myklebust } 895cb17e556STrond Myklebust 8961da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 8971da177e4SLinus Torvalds { 8988687b63aSAl Viro __be32 *p; 8991da177e4SLinus Torvalds 9006fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 9011da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 9021da177e4SLinus Torvalds } 9031da177e4SLinus Torvalds 9044ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9054ade9821STrond Myklebust { 9064ade9821STrond Myklebust __be32 *p; 9074ade9821STrond Myklebust 9084ade9821STrond Myklebust p = reserve_space(xdr, 4); 9094ade9821STrond Myklebust *p = cpu_to_be32(n); 9104ade9821STrond Myklebust } 9114ade9821STrond Myklebust 912ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 913ff2eb681STrond Myklebust { 914ff2eb681STrond Myklebust __be32 *p; 915ff2eb681STrond Myklebust 916ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 917ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 918ff2eb681STrond Myklebust } 919ff2eb681STrond Myklebust 9204ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9214ade9821STrond Myklebust const struct nfs_seqid *seqid) 9224ade9821STrond Myklebust { 9234ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 9244ade9821STrond Myklebust } 9254ade9821STrond Myklebust 9260c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9270c4e8c18SBenny Halevy struct rpc_rqst *req, 9280c4e8c18SBenny Halevy struct compound_hdr *hdr) 9291da177e4SLinus Torvalds { 9308687b63aSAl Viro __be32 *p; 931a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9320c4e8c18SBenny Halevy 9330c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9340c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9350c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9360c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9371da177e4SLinus Torvalds 9387fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 9396fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9406fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 941e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 942d017931cSAndy Adamson hdr->nops_p = p; 94334558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 944d017931cSAndy Adamson } 945d017931cSAndy Adamson 946ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 947ab19b481STrond Myklebust uint32_t replen, 948ab19b481STrond Myklebust struct compound_hdr *hdr) 949ab19b481STrond Myklebust { 950ab19b481STrond Myklebust encode_uint32(xdr, op); 951ab19b481STrond Myklebust hdr->nops++; 952ab19b481STrond Myklebust hdr->replen += replen; 953ab19b481STrond Myklebust } 954ab19b481STrond Myklebust 955d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 956d017931cSAndy Adamson { 9577fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 958d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9591da177e4SLinus Torvalds } 9601da177e4SLinus Torvalds 961ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 962ea9d23f5STrond Myklebust { 9632d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 964ea9d23f5STrond Myklebust } 965ea9d23f5STrond Myklebust 9661da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9671da177e4SLinus Torvalds { 968cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 9691da177e4SLinus Torvalds } 9701da177e4SLinus Torvalds 971cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9721da177e4SLinus Torvalds { 9731da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9741da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9751da177e4SLinus Torvalds int owner_namelen = 0; 9761da177e4SLinus Torvalds int owner_grouplen = 0; 9778687b63aSAl Viro __be32 *p; 9788687b63aSAl Viro __be32 *q; 9791da177e4SLinus Torvalds int len; 9801da177e4SLinus Torvalds uint32_t bmval0 = 0; 9811da177e4SLinus Torvalds uint32_t bmval1 = 0; 9821da177e4SLinus Torvalds 9831da177e4SLinus Torvalds /* 9841da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9851da177e4SLinus Torvalds * In the worst-case, this would be 9861da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9871da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 98823ec6965SJ. Bruce Fields * such as owner/group. 9891da177e4SLinus Torvalds */ 9901da177e4SLinus Torvalds len = 16; 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds /* Sigh */ 9931da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9941da177e4SLinus Torvalds len += 8; 9951da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 9961da177e4SLinus Torvalds len += 4; 9971da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 998e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 9991da177e4SLinus Torvalds if (owner_namelen < 0) { 1000fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1001e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 10021da177e4SLinus Torvalds /* XXX */ 10031da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10041da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10051da177e4SLinus Torvalds /* goto out; */ 10061da177e4SLinus Torvalds } 10071da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10081da177e4SLinus Torvalds } 10091da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1010e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10111da177e4SLinus Torvalds if (owner_grouplen < 0) { 1012fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1013e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 10141da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10151da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10161da177e4SLinus Torvalds /* goto out; */ 10171da177e4SLinus Torvalds } 10181da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10191da177e4SLinus Torvalds } 10201da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 10211da177e4SLinus Torvalds len += 16; 10221da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 10231da177e4SLinus Torvalds len += 4; 10241da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 10251da177e4SLinus Torvalds len += 16; 10261da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 10271da177e4SLinus Torvalds len += 4; 102813c65ce9SBenny Halevy p = reserve_space(xdr, len); 10291da177e4SLinus Torvalds 10301da177e4SLinus Torvalds /* 10311da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 10321da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 10331da177e4SLinus Torvalds */ 1034e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 10351da177e4SLinus Torvalds q = p; 10361da177e4SLinus Torvalds p += 3; 10371da177e4SLinus Torvalds 10381da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 10391da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 1040b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 10411da177e4SLinus Torvalds } 10421da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10431da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1044e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10451da177e4SLinus Torvalds } 10461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10471da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1048811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10491da177e4SLinus Torvalds } 10501da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10511da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1052811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10531da177e4SLinus Torvalds } 10541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10551da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1056e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1057e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1058d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1059d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10601da177e4SLinus Torvalds } 10611da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10621da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1063e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10641da177e4SLinus Torvalds } 10651da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10661da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1067e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1068e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1069e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1070e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10711da177e4SLinus Torvalds } 10721da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10731da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1074e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10751da177e4SLinus Torvalds } 10761da177e4SLinus Torvalds 10771da177e4SLinus Torvalds /* 10781da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10791da177e4SLinus Torvalds */ 10801da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1081f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10821da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10831da177e4SLinus Torvalds BUG(); 10841da177e4SLinus Torvalds } 10851da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10861da177e4SLinus Torvalds *q++ = htonl(bmval0); 10871da177e4SLinus Torvalds *q++ = htonl(bmval1); 108834558513SBenny Halevy *q = htonl(len); 10891da177e4SLinus Torvalds 10901da177e4SLinus Torvalds /* out: */ 10911da177e4SLinus Torvalds } 10921da177e4SLinus Torvalds 1093cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10941da177e4SLinus Torvalds { 1095475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1096475d4ba0STrond Myklebust encode_uint32(xdr, access); 10971da177e4SLinus Torvalds } 10981da177e4SLinus Torvalds 1099cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11001da177e4SLinus Torvalds { 1101ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11024ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1103ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 11041da177e4SLinus Torvalds } 11051da177e4SLinus Torvalds 11060b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11071da177e4SLinus Torvalds { 11088687b63aSAl Viro __be32 *p; 11091da177e4SLinus Torvalds 1110475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1111475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1112b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 111334558513SBenny Halevy *p = cpu_to_be32(args->count); 11141da177e4SLinus Torvalds } 11151da177e4SLinus Torvalds 1116cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11171da177e4SLinus Torvalds { 11188687b63aSAl Viro __be32 *p; 11191da177e4SLinus Torvalds 1120475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1121475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11221da177e4SLinus Torvalds 11231da177e4SLinus Torvalds switch (create->ftype) { 11241da177e4SLinus Torvalds case NF4LNK: 112513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 112634558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 112794a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11281da177e4SLinus Torvalds break; 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 113113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1132e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 113334558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11341da177e4SLinus Torvalds break; 11351da177e4SLinus Torvalds 11361da177e4SLinus Torvalds default: 11371da177e4SLinus Torvalds break; 11381da177e4SLinus Torvalds } 11391da177e4SLinus Torvalds 1140811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1141cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11421da177e4SLinus Torvalds } 11431da177e4SLinus Torvalds 1144cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11451da177e4SLinus Torvalds { 11468687b63aSAl Viro __be32 *p; 11471da177e4SLinus Torvalds 1148475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1149475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1150e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 115134558513SBenny Halevy *p = cpu_to_be32(bitmap); 11521da177e4SLinus Torvalds } 11531da177e4SLinus Torvalds 1154cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11551da177e4SLinus Torvalds { 11568687b63aSAl Viro __be32 *p; 11571da177e4SLinus Torvalds 1158475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1159475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1160e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1161e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 116234558513SBenny Halevy *p = cpu_to_be32(bm1); 11631da177e4SLinus Torvalds } 11641da177e4SLinus Torvalds 1165dae100c2SFred Isaman static void 1166dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1167dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1168dae100c2SFred Isaman struct compound_hdr *hdr) 1169dae100c2SFred Isaman { 1170dae100c2SFred Isaman __be32 *p; 1171dae100c2SFred Isaman 1172ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1173dae100c2SFred Isaman if (bm2) { 1174dae100c2SFred Isaman p = reserve_space(xdr, 16); 1175dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1176dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1177dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1178dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1179dae100c2SFred Isaman } else if (bm1) { 1180dae100c2SFred Isaman p = reserve_space(xdr, 12); 1181dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1182dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1183dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1184dae100c2SFred Isaman } else { 1185dae100c2SFred Isaman p = reserve_space(xdr, 8); 1186dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1187dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1188dae100c2SFred Isaman } 1189dae100c2SFred Isaman } 1190dae100c2SFred Isaman 1191cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11921da177e4SLinus Torvalds { 1193cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1194d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11951da177e4SLinus Torvalds } 11961da177e4SLinus Torvalds 119788034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 11981549210fSTrond Myklebust const u32 *open_bitmap, 119988034c3dSAndy Adamson struct compound_hdr *hdr) 120088034c3dSAndy Adamson { 120188034c3dSAndy Adamson encode_getattr_three(xdr, 12021549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12031549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12041549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 120588034c3dSAndy Adamson hdr); 120688034c3dSAndy Adamson } 120788034c3dSAndy Adamson 1208cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12091da177e4SLinus Torvalds { 1210dae100c2SFred Isaman encode_getattr_three(xdr, 1211dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1212dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1213dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1214dae100c2SFred Isaman hdr); 12151da177e4SLinus Torvalds } 12161da177e4SLinus Torvalds 1217cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1218830b8e33SManoj Naik { 1219cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1220cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1221830b8e33SManoj Naik } 1222830b8e33SManoj Naik 1223cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12241da177e4SLinus Torvalds { 1225ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12261da177e4SLinus Torvalds } 12271da177e4SLinus Torvalds 1228cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12291da177e4SLinus Torvalds { 1230ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12316fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12321da177e4SLinus Torvalds } 12331da177e4SLinus Torvalds 1234911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1235911d1aafSTrond Myklebust { 1236f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1237911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1238911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1239911d1aafSTrond Myklebust } 1240911d1aafSTrond Myklebust 1241911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1242911d1aafSTrond Myklebust { 1243911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1244911d1aafSTrond Myklebust return ~(uint64_t)0; 1245911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1246911d1aafSTrond Myklebust } 1247911d1aafSTrond Myklebust 1248daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1249daccbdedSTrond Myklebust { 1250daccbdedSTrond Myklebust __be32 *p; 1251daccbdedSTrond Myklebust 1252d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1253daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1254d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1255daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1256d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1257daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1258daccbdedSTrond Myklebust } 1259daccbdedSTrond Myklebust 12601da177e4SLinus Torvalds /* 12611da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12621da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12631da177e4SLinus Torvalds */ 1264cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12651da177e4SLinus Torvalds { 12668687b63aSAl Viro __be32 *p; 12671da177e4SLinus Torvalds 1268475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1269475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1270e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1271e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1272b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1273b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 127434558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1275911d1aafSTrond Myklebust if (args->new_lock_owner){ 12764ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1277ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->open_stateid); 12784ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1279daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12801da177e4SLinus Torvalds } 12811da177e4SLinus Torvalds else { 1282ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->lock_stateid); 12834ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 12841da177e4SLinus Torvalds } 12851da177e4SLinus Torvalds } 12861da177e4SLinus Torvalds 1287cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12881da177e4SLinus Torvalds { 12898687b63aSAl Viro __be32 *p; 12901da177e4SLinus Torvalds 1291475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1292475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1293e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1294b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1295b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1296daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12971da177e4SLinus Torvalds } 12981da177e4SLinus Torvalds 1299cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13001da177e4SLinus Torvalds { 13018687b63aSAl Viro __be32 *p; 13021da177e4SLinus Torvalds 1303475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1304475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13054ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1306ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 1307ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1308b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 130934558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13101da177e4SLinus Torvalds } 13111da177e4SLinus Torvalds 1312d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1313d3c7b7ccSTrond Myklebust { 1314ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1315d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1316d3c7b7ccSTrond Myklebust } 1317d3c7b7ccSTrond Myklebust 1318cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13191da177e4SLinus Torvalds { 1320ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13216fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13221da177e4SLinus Torvalds } 13231da177e4SLinus Torvalds 1324dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13251da177e4SLinus Torvalds { 13268687b63aSAl Viro __be32 *p; 13271da177e4SLinus Torvalds 132813c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1329dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13301da177e4SLinus Torvalds case FMODE_READ: 1331e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13321da177e4SLinus Torvalds break; 13331da177e4SLinus Torvalds case FMODE_WRITE: 1334e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13351da177e4SLinus Torvalds break; 13361da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1337e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13381da177e4SLinus Torvalds break; 13391da177e4SLinus Torvalds default: 1340e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13411da177e4SLinus Torvalds } 134234558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13431da177e4SLinus Torvalds } 13441da177e4SLinus Torvalds 13451da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13461da177e4SLinus Torvalds { 13478687b63aSAl Viro __be32 *p; 13481da177e4SLinus Torvalds /* 13491da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13501da177e4SLinus Torvalds * owner 4 = 32 13511da177e4SLinus Torvalds */ 13524ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1353dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 135495b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1355b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 135695b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 135793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1358d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 135995b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 136095b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13611da177e4SLinus Torvalds } 13621da177e4SLinus Torvalds 13631da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13641da177e4SLinus Torvalds { 13658687b63aSAl Viro __be32 *p; 13664882ef72SAlexandros Batsakis struct nfs_client *clp; 13671da177e4SLinus Torvalds 136813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13691da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13701da177e4SLinus Torvalds case 0: 137134558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13721da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13731da177e4SLinus Torvalds break; 13741da177e4SLinus Torvalds default: 13754882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1376a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13774882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13784882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13794882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13804882ef72SAlexandros Batsakis } else { 13814882ef72SAlexandros Batsakis struct iattr dummy; 13824882ef72SAlexandros Batsakis 13834882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13844882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13854882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13864882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13874882ef72SAlexandros Batsakis } 13884882ef72SAlexandros Batsakis } else { 138934558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13901da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13911da177e4SLinus Torvalds } 13921da177e4SLinus Torvalds } 13934882ef72SAlexandros Batsakis } 13941da177e4SLinus Torvalds 13951da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13961da177e4SLinus Torvalds { 13978687b63aSAl Viro __be32 *p; 13981da177e4SLinus Torvalds 139913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14001da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14011da177e4SLinus Torvalds case 0: 140234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14031da177e4SLinus Torvalds break; 14041da177e4SLinus Torvalds default: 140534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14061da177e4SLinus Torvalds encode_createmode(xdr, arg); 14071da177e4SLinus Torvalds } 14081da177e4SLinus Torvalds } 14091da177e4SLinus Torvalds 1410bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14111da177e4SLinus Torvalds { 14128687b63aSAl Viro __be32 *p; 14131da177e4SLinus Torvalds 141413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14151da177e4SLinus Torvalds switch (delegation_type) { 14161da177e4SLinus Torvalds case 0: 141734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14181da177e4SLinus Torvalds break; 14191da177e4SLinus Torvalds case FMODE_READ: 142034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14211da177e4SLinus Torvalds break; 14221da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 142334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14241da177e4SLinus Torvalds break; 14251da177e4SLinus Torvalds default: 14261da177e4SLinus Torvalds BUG(); 14271da177e4SLinus Torvalds } 14281da177e4SLinus Torvalds } 14291da177e4SLinus Torvalds 14301da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14311da177e4SLinus Torvalds { 14328687b63aSAl Viro __be32 *p; 14331da177e4SLinus Torvalds 143413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14361da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14371da177e4SLinus Torvalds } 14381da177e4SLinus Torvalds 1439bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14401da177e4SLinus Torvalds { 14418687b63aSAl Viro __be32 *p; 14421da177e4SLinus Torvalds 144313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14451da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14461da177e4SLinus Torvalds } 14471da177e4SLinus Torvalds 14481da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14491da177e4SLinus Torvalds { 14508687b63aSAl Viro __be32 *p; 14511da177e4SLinus Torvalds 1452ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1453ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1454ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14551da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14561da177e4SLinus Torvalds } 14571da177e4SLinus Torvalds 1458d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1459d9fc6619STrond Myklebust { 1460d9fc6619STrond Myklebust __be32 *p; 1461d9fc6619STrond Myklebust 1462d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1463d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1464d9fc6619STrond Myklebust } 1465d9fc6619STrond Myklebust 1466d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1467d9fc6619STrond Myklebust { 1468d9fc6619STrond Myklebust __be32 *p; 1469d9fc6619STrond Myklebust 1470d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1471d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1472d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1473d9fc6619STrond Myklebust } 1474d9fc6619STrond Myklebust 1475cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14761da177e4SLinus Torvalds { 1477ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 14781da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14791da177e4SLinus Torvalds encode_opentype(xdr, arg); 14801da177e4SLinus Torvalds switch (arg->claim) { 14811da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14821da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14831da177e4SLinus Torvalds break; 14841da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14851da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14861da177e4SLinus Torvalds break; 14871da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14881da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14891da177e4SLinus Torvalds break; 1490d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1491d9fc6619STrond Myklebust encode_claim_fh(xdr); 1492d9fc6619STrond Myklebust break; 1493d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1494d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1495d9fc6619STrond Myklebust break; 14961da177e4SLinus Torvalds default: 14971da177e4SLinus Torvalds BUG(); 14981da177e4SLinus Torvalds } 14991da177e4SLinus Torvalds } 15001da177e4SLinus Torvalds 1501cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15021da177e4SLinus Torvalds { 1503ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1504ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15054ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15061da177e4SLinus Torvalds } 15071da177e4SLinus Torvalds 1508cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15091da177e4SLinus Torvalds { 1510ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1511ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15124ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1513dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 15141da177e4SLinus Torvalds } 15151da177e4SLinus Torvalds 1516cf8cdbe5SAndy Adamson static void 1517d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15181da177e4SLinus Torvalds { 1519ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15206fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15211da177e4SLinus Torvalds } 15221da177e4SLinus Torvalds 1523cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15241da177e4SLinus Torvalds { 1525ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15261da177e4SLinus Torvalds } 15271da177e4SLinus Torvalds 1528cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15291da177e4SLinus Torvalds { 15308687b63aSAl Viro __be32 *p; 15311da177e4SLinus Torvalds 1532ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15339b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 15341da177e4SLinus Torvalds 153513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1536b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 153734558513SBenny Halevy *p = cpu_to_be32(args->count); 15381da177e4SLinus Torvalds } 15391da177e4SLinus Torvalds 1540cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15411da177e4SLinus Torvalds { 154228331a46STrond Myklebust uint32_t attrs[2] = { 154328331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 154428331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 154528331a46STrond Myklebust }; 15466f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1547cd93710eSChuck Lever __be32 *p, verf[2]; 15481da177e4SLinus Torvalds 154982f2e547SBryan Schumaker if (readdir->plus) { 155082f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 155128331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 155282f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 155382f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 155482f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 155582f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15566f7a35bdSTrond Myklebust dircount >>= 1; 155782f2e547SBryan Schumaker } 155828331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 155928331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 156028331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15616f7a35bdSTrond Myklebust 1562475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1563ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1564cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1565cd93710eSChuck Lever p = reserve_space(xdr, 20); 15666f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15676f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15686f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 156982f2e547SBryan Schumaker 1570e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 157134558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1572cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 157344109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 157444109241SFred Isaman __func__, 1575eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1576cd93710eSChuck Lever verf[0], verf[1], 1577eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1578eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 15791da177e4SLinus Torvalds } 15801da177e4SLinus Torvalds 1581cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 15821da177e4SLinus Torvalds { 1583ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 15841da177e4SLinus Torvalds } 15851da177e4SLinus Torvalds 1586cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 15871da177e4SLinus Torvalds { 1588ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 15896fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 15901da177e4SLinus Torvalds } 15911da177e4SLinus Torvalds 1592cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 15931da177e4SLinus Torvalds { 1594ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1595811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1596811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 15971da177e4SLinus Torvalds } 15981da177e4SLinus Torvalds 1599bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1600bb4dae5eSChuck Lever struct compound_hdr *hdr) 16011da177e4SLinus Torvalds { 1602475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1603ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16041da177e4SLinus Torvalds } 16051da177e4SLinus Torvalds 1606cf8cdbe5SAndy Adamson static void 1607d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 160856ae19f3STrond Myklebust { 1609ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 161056ae19f3STrond Myklebust } 161156ae19f3STrond Myklebust 16129f06c719SChuck Lever static void 1613d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 161423ec6965SJ. Bruce Fields { 16158687b63aSAl Viro __be32 *p; 161623ec6965SJ. Bruce Fields 1617ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1618ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 161913c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1620e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 162134558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 162213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 162334558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 162423ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 162523ec6965SJ. Bruce Fields } 162623ec6965SJ. Bruce Fields 1627cf8cdbe5SAndy Adamson static void 1628d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16291da177e4SLinus Torvalds { 1630ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16311da177e4SLinus Torvalds } 16321da177e4SLinus Torvalds 1633cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16341da177e4SLinus Torvalds { 1635ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1636ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1637cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 16381da177e4SLinus Torvalds } 16391da177e4SLinus Torvalds 1640cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16411da177e4SLinus Torvalds { 16428687b63aSAl Viro __be32 *p; 16431da177e4SLinus Torvalds 164470019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1645cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16461da177e4SLinus Torvalds 16471da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 164813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 164934558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16501da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16511da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 165213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165334558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 16541da177e4SLinus Torvalds } 16551da177e4SLinus Torvalds 1656bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16571da177e4SLinus Torvalds { 1658475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1659475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1660ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1661cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 16621da177e4SLinus Torvalds } 16631da177e4SLinus Torvalds 1664cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 16651da177e4SLinus Torvalds { 16668687b63aSAl Viro __be32 *p; 16671da177e4SLinus Torvalds 1668ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 16699b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 16701da177e4SLinus Torvalds 167113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1672b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1673e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 167434558513SBenny Halevy *p = cpu_to_be32(args->count); 16751da177e4SLinus Torvalds 16761da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 16771da177e4SLinus Torvalds } 16781da177e4SLinus Torvalds 1679cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16801da177e4SLinus Torvalds { 1681ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1682ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 16831da177e4SLinus Torvalds } 16849b7b9fccSAndy Adamson 16855a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16865a5ea0d4SBryan Schumaker { 1687ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 16886fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16895a5ea0d4SBryan Schumaker } 16905a5ea0d4SBryan Schumaker 169199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16929b7b9fccSAndy Adamson /* NFSv4.1 operations */ 16937c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 16947c44f1aeSWeston Andros Adamson struct nfs4_session *session, 16957c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 16967c44f1aeSWeston Andros Adamson { 16977c44f1aeSWeston Andros Adamson __be32 *p; 16987c44f1aeSWeston Andros Adamson 16997c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17007c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 17017c44f1aeSWeston Andros Adamson encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17027c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 17037c44f1aeSWeston Andros Adamson *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH); 17047c44f1aeSWeston Andros Adamson *p = 0; /* use_conn_in_rdma_mode = False */ 17057c44f1aeSWeston Andros Adamson } 17067c44f1aeSWeston Andros Adamson 170799fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 170899fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 170999fe60d0SBenny Halevy struct compound_hdr *hdr) 171099fe60d0SBenny Halevy { 171199fe60d0SBenny Halevy __be32 *p; 1712d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1713db8ac8baSWeston Andros Adamson int len = 0; 171499fe60d0SBenny Halevy 171570019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1716cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 171799fe60d0SBenny Halevy 171899fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 171999fe60d0SBenny Halevy 172013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1721e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1722e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1723db8ac8baSWeston Andros Adamson 1724db8ac8baSWeston Andros Adamson if (send_implementation_id && 1725db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1726db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1727d751f748SJim Rees <= sizeof(impl_name) + 1) 1728db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1729db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1730db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1731db8ac8baSWeston Andros Adamson 1732db8ac8baSWeston Andros Adamson if (len > 0) { 1733db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1734db8ac8baSWeston Andros Adamson 1735db8ac8baSWeston Andros Adamson encode_string(xdr, 1736db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1737db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1738db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1739db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1740db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1741db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1742db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1743db8ac8baSWeston Andros Adamson } else 1744db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 174599fe60d0SBenny Halevy } 1746fc931582SAndy Adamson 1747fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1748fc931582SAndy Adamson struct nfs41_create_session_args *args, 1749fc931582SAndy Adamson struct compound_hdr *hdr) 1750fc931582SAndy Adamson { 1751fc931582SAndy Adamson __be32 *p; 1752fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1753fc931582SAndy Adamson uint32_t len; 1754fc931582SAndy Adamson struct nfs_client *clp = args->client; 1755f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 17568e0d46e1SMike Sager u32 max_resp_sz_cached; 17578e0d46e1SMike Sager 17588e0d46e1SMike Sager /* 17598e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 17608e0d46e1SMike Sager * 2 is the verifier. 17618e0d46e1SMike Sager */ 17628e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 17638e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1764fc931582SAndy Adamson 1765fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1766fc931582SAndy Adamson clp->cl_ipaddr); 176742edd698SBenny Halevy 1768475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 1769475d4ba0STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12); 1770114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1771e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1772e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1773fc931582SAndy Adamson 1774fc931582SAndy Adamson /* Fore Channel */ 1775c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1776e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1777e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 17788e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1779e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1780e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1781e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1782fc931582SAndy Adamson 1783fc931582SAndy Adamson /* Back Channel */ 1784c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1785e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1786e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1787e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1788e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1789e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1790e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1791fc931582SAndy Adamson 1792e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1793e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1794e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1795fc931582SAndy Adamson 1796fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1797f092075dSChuck Lever *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */ 1798811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1799e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1800e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 180134558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1802fc931582SAndy Adamson } 18030f3e66c6SAndy Adamson 18040f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18050f3e66c6SAndy Adamson struct nfs4_session *session, 18060f3e66c6SAndy Adamson struct compound_hdr *hdr) 18070f3e66c6SAndy Adamson { 1808475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1809475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18100f3e66c6SAndy Adamson } 181118019753SRicardo Labiaga 181266245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 181366245539STrond Myklebust uint64_t clientid, 181466245539STrond Myklebust struct compound_hdr *hdr) 181566245539STrond Myklebust { 181666245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 181766245539STrond Myklebust encode_uint64(xdr, clientid); 181866245539STrond Myklebust } 181966245539STrond Myklebust 182018019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 182118019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 182218019753SRicardo Labiaga struct compound_hdr *hdr) 182318019753SRicardo Labiaga { 1824475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1825475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 182618019753SRicardo Labiaga } 182799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 182899fe60d0SBenny Halevy 18299b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18309b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18319b7b9fccSAndy Adamson struct compound_hdr *hdr) 18329b7b9fccSAndy Adamson { 18339b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18342b2fa717STrond Myklebust struct nfs4_session *session; 1835fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 18362b2fa717STrond Myklebust struct nfs4_slot *slot = args->sa_slot; 1837fc01cea9SAndy Adamson __be32 *p; 18389b7b9fccSAndy Adamson 18392b2fa717STrond Myklebust if (slot == NULL) 18409b7b9fccSAndy Adamson return; 18419b7b9fccSAndy Adamson 18422b2fa717STrond Myklebust tp = slot->table; 18432b2fa717STrond Myklebust session = tp->session; 1844fc01cea9SAndy Adamson 1845475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1846fc01cea9SAndy Adamson 1847fc01cea9SAndy Adamson /* 1848fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1849fc01cea9SAndy Adamson */ 1850fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1851fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1852fc01cea9SAndy Adamson __func__, 1853fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1854fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1855fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1856fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 18572b2fa717STrond Myklebust slot->seq_nr, slot->slot_nr, 1858fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1859475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 186093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1861e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 18622b2fa717STrond Myklebust *p++ = cpu_to_be32(slot->slot_nr); 1863e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 186434558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 18659b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 18669b7b9fccSAndy Adamson } 18679b7b9fccSAndy Adamson 1868b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1869b1f69b75SAndy Adamson static void 18707f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 18717f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 18727f11d8d3SAndy Adamson struct compound_hdr *hdr) 18737f11d8d3SAndy Adamson { 18747f11d8d3SAndy Adamson __be32 *p; 18757f11d8d3SAndy Adamson nfs4_verifier dummy = { 18767f11d8d3SAndy Adamson .data = "dummmmmy", 18777f11d8d3SAndy Adamson }; 18787f11d8d3SAndy Adamson 1879475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr); 1880475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 18817f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 18827f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 18837f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 18847f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 18857f11d8d3SAndy Adamson } 18867f11d8d3SAndy Adamson 18877f11d8d3SAndy Adamson static void 1888b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1889b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1890b1f69b75SAndy Adamson struct compound_hdr *hdr) 1891b1f69b75SAndy Adamson { 1892b1f69b75SAndy Adamson __be32 *p; 1893b1f69b75SAndy Adamson 1894475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 1895475d4ba0STrond Myklebust p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE); 1896b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1897b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1898b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1899b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1900b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1901b1f69b75SAndy Adamson } 1902b1f69b75SAndy Adamson 1903b1f69b75SAndy Adamson static void 1904b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1905b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1906b1f69b75SAndy Adamson struct compound_hdr *hdr) 1907b1f69b75SAndy Adamson { 1908b1f69b75SAndy Adamson __be32 *p; 1909b1f69b75SAndy Adamson 1910475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1911475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1912b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1913b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1914b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1915b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1916b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1917b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1918ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1919475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1920b1f69b75SAndy Adamson 1921b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1922b1f69b75SAndy Adamson __func__, 1923b1f69b75SAndy Adamson args->type, 1924b1f69b75SAndy Adamson args->range.iomode, 1925b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1926b1f69b75SAndy Adamson (unsigned long)args->range.length, 1927b1f69b75SAndy Adamson args->maxcount); 1928b1f69b75SAndy Adamson } 1929863a3c6cSAndy Adamson 1930863a3c6cSAndy Adamson static int 1931863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1932ac7db726SBenny Halevy struct inode *inode, 1933863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1934863a3c6cSAndy Adamson struct compound_hdr *hdr) 1935863a3c6cSAndy Adamson { 1936863a3c6cSAndy Adamson __be32 *p; 1937863a3c6cSAndy Adamson 1938863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1939863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1940863a3c6cSAndy Adamson 1941475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 1942475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1943863a3c6cSAndy Adamson /* Only whole file layouts */ 1944863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19453557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1946ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 1947ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1948ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1949863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1950863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1951863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1952863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1953ac7db726SBenny Halevy 1954ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 1955ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 1956ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 1957475d4ba0STrond Myklebust else 1958475d4ba0STrond Myklebust encode_uint32(xdr, 0); /* no layout-type payload */ 1959863a3c6cSAndy Adamson 1960863a3c6cSAndy Adamson return 0; 1961863a3c6cSAndy Adamson } 1962cbe82603SBenny Halevy 1963cbe82603SBenny Halevy static void 1964cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 1965cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 1966cbe82603SBenny Halevy struct compound_hdr *hdr) 1967cbe82603SBenny Halevy { 1968cbe82603SBenny Halevy __be32 *p; 1969cbe82603SBenny Halevy 1970475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 1971475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 1972cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 1973cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 1974cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 1975cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 1976ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1977cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 1978cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 1979cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 1980ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1981cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 198204a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 198304a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 198404a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 1985475d4ba0STrond Myklebust } else 1986475d4ba0STrond Myklebust encode_uint32(xdr, 0); 1987cbe82603SBenny Halevy } 1988fca78d6dSBryan Schumaker 1989fca78d6dSBryan Schumaker static int 1990fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 1991fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 1992fca78d6dSBryan Schumaker struct compound_hdr *hdr) 1993fca78d6dSBryan Schumaker { 1994475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 1995475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 1996fca78d6dSBryan Schumaker return 0; 1997fca78d6dSBryan Schumaker } 19987d974794SBryan Schumaker 19997d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20007d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20017d974794SBryan Schumaker struct compound_hdr *hdr) 20027d974794SBryan Schumaker { 2003475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2004475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2005ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20067d974794SBryan Schumaker } 20079aeda35fSBryan Schumaker 20089aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20099aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20109aeda35fSBryan Schumaker struct compound_hdr *hdr) 20119aeda35fSBryan Schumaker { 2012ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 2013ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20149aeda35fSBryan Schumaker } 2015b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2016b1f69b75SAndy Adamson 20171da177e4SLinus Torvalds /* 20181da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20191da177e4SLinus Torvalds */ 20201da177e4SLinus Torvalds 202166cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 202266cc0429SBenny Halevy { 202366cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 20242b2fa717STrond Myklebust 20252b2fa717STrond Myklebust if (args->sa_slot) 20262b2fa717STrond Myklebust return args->sa_slot->table->session->clp->cl_mvops->minor_version; 202766cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 202866cc0429SBenny Halevy return 0; 202966cc0429SBenny Halevy } 203066cc0429SBenny Halevy 20311da177e4SLinus Torvalds /* 20321da177e4SLinus Torvalds * Encode an ACCESS request 20331da177e4SLinus Torvalds */ 20349f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20359f06c719SChuck Lever const struct nfs4_accessargs *args) 20361da177e4SLinus Torvalds { 20371da177e4SLinus Torvalds struct compound_hdr hdr = { 203866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20391da177e4SLinus Torvalds }; 20401da177e4SLinus Torvalds 20419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20449f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 20459f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2046d017931cSAndy Adamson encode_nops(&hdr); 20471da177e4SLinus Torvalds } 20481da177e4SLinus Torvalds 20491da177e4SLinus Torvalds /* 20501da177e4SLinus Torvalds * Encode LOOKUP request 20511da177e4SLinus Torvalds */ 20529f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 20539f06c719SChuck Lever const struct nfs4_lookup_arg *args) 20541da177e4SLinus Torvalds { 20551da177e4SLinus Torvalds struct compound_hdr hdr = { 205666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20571da177e4SLinus Torvalds }; 20581da177e4SLinus Torvalds 20599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20619f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 20629f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 20639f06c719SChuck Lever encode_getfh(xdr, &hdr); 20649f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2065d017931cSAndy Adamson encode_nops(&hdr); 20661da177e4SLinus Torvalds } 20671da177e4SLinus Torvalds 20681da177e4SLinus Torvalds /* 20691da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 20701da177e4SLinus Torvalds */ 20719f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 20729f06c719SChuck Lever struct xdr_stream *xdr, 20739f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 20741da177e4SLinus Torvalds { 20751da177e4SLinus Torvalds struct compound_hdr hdr = { 207666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20771da177e4SLinus Torvalds }; 20781da177e4SLinus Torvalds 20799f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20809f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20819f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 20829f06c719SChuck Lever encode_getfh(xdr, &hdr); 20839f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2084d017931cSAndy Adamson encode_nops(&hdr); 20851da177e4SLinus Torvalds } 20861da177e4SLinus Torvalds 20871da177e4SLinus Torvalds /* 20881da177e4SLinus Torvalds * Encode REMOVE request 20891da177e4SLinus Torvalds */ 20909f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 20919f06c719SChuck Lever const struct nfs_removeargs *args) 20921da177e4SLinus Torvalds { 20931da177e4SLinus Torvalds struct compound_hdr hdr = { 209466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20951da177e4SLinus Torvalds }; 20961da177e4SLinus Torvalds 20979f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20989f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20999f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21009f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2101d017931cSAndy Adamson encode_nops(&hdr); 21021da177e4SLinus Torvalds } 21031da177e4SLinus Torvalds 21041da177e4SLinus Torvalds /* 21051da177e4SLinus Torvalds * Encode RENAME request 21061da177e4SLinus Torvalds */ 21079f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21089f06c719SChuck Lever const struct nfs_renameargs *args) 21091da177e4SLinus Torvalds { 21101da177e4SLinus Torvalds struct compound_hdr hdr = { 211166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21121da177e4SLinus Torvalds }; 21131da177e4SLinus Torvalds 21149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21159f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21169f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21179f06c719SChuck Lever encode_savefh(xdr, &hdr); 21189f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21199f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2120d017931cSAndy Adamson encode_nops(&hdr); 21211da177e4SLinus Torvalds } 21221da177e4SLinus Torvalds 21231da177e4SLinus Torvalds /* 21241da177e4SLinus Torvalds * Encode LINK request 21251da177e4SLinus Torvalds */ 21269f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21279f06c719SChuck Lever const struct nfs4_link_arg *args) 21281da177e4SLinus Torvalds { 21291da177e4SLinus Torvalds struct compound_hdr hdr = { 213066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21311da177e4SLinus Torvalds }; 21321da177e4SLinus Torvalds 21339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21349f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21359f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21369f06c719SChuck Lever encode_savefh(xdr, &hdr); 21379f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21389f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21399f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21409f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2141d017931cSAndy Adamson encode_nops(&hdr); 21421da177e4SLinus Torvalds } 21431da177e4SLinus Torvalds 21441da177e4SLinus Torvalds /* 21451da177e4SLinus Torvalds * Encode CREATE request 21461da177e4SLinus Torvalds */ 21479f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 21489f06c719SChuck Lever const struct nfs4_create_arg *args) 21491da177e4SLinus Torvalds { 21501da177e4SLinus Torvalds struct compound_hdr hdr = { 215166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21521da177e4SLinus Torvalds }; 21531da177e4SLinus Torvalds 21549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21559f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21569f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21579f06c719SChuck Lever encode_create(xdr, args, &hdr); 21589f06c719SChuck Lever encode_getfh(xdr, &hdr); 21599f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2160d017931cSAndy Adamson encode_nops(&hdr); 21611da177e4SLinus Torvalds } 21621da177e4SLinus Torvalds 21631da177e4SLinus Torvalds /* 21641da177e4SLinus Torvalds * Encode SYMLINK request 21651da177e4SLinus Torvalds */ 21669f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21679f06c719SChuck Lever const struct nfs4_create_arg *args) 21681da177e4SLinus Torvalds { 21699f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 21701da177e4SLinus Torvalds } 21711da177e4SLinus Torvalds 21721da177e4SLinus Torvalds /* 21731da177e4SLinus Torvalds * Encode GETATTR request 21741da177e4SLinus Torvalds */ 21759f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 21769f06c719SChuck Lever const struct nfs4_getattr_arg *args) 21771da177e4SLinus Torvalds { 21781da177e4SLinus Torvalds struct compound_hdr hdr = { 217966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21801da177e4SLinus Torvalds }; 21811da177e4SLinus Torvalds 21829f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21839f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21849f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21859f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2186d017931cSAndy Adamson encode_nops(&hdr); 21871da177e4SLinus Torvalds } 21881da177e4SLinus Torvalds 21891da177e4SLinus Torvalds /* 21901da177e4SLinus Torvalds * Encode a CLOSE request 21911da177e4SLinus Torvalds */ 21929f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 21939f06c719SChuck Lever struct nfs_closeargs *args) 21941da177e4SLinus Torvalds { 21951da177e4SLinus Torvalds struct compound_hdr hdr = { 219666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21971da177e4SLinus Torvalds }; 21981da177e4SLinus Torvalds 21999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22009f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22019f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22029f06c719SChuck Lever encode_close(xdr, args, &hdr); 22039f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2204d017931cSAndy Adamson encode_nops(&hdr); 22051da177e4SLinus Torvalds } 22061da177e4SLinus Torvalds 22071da177e4SLinus Torvalds /* 22081da177e4SLinus Torvalds * Encode an OPEN request 22091da177e4SLinus Torvalds */ 22109f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22119f06c719SChuck Lever struct nfs_openargs *args) 22121da177e4SLinus Torvalds { 22131da177e4SLinus Torvalds struct compound_hdr hdr = { 221466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22151da177e4SLinus Torvalds }; 22161da177e4SLinus Torvalds 22179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22189f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22199f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22209f06c719SChuck Lever encode_open(xdr, args, &hdr); 22219f06c719SChuck Lever encode_getfh(xdr, &hdr); 2222ae2bb032SWeston Andros Adamson if (args->access) 22236168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22241549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2225d017931cSAndy Adamson encode_nops(&hdr); 22261da177e4SLinus Torvalds } 22271da177e4SLinus Torvalds 22281da177e4SLinus Torvalds /* 22291da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22301da177e4SLinus Torvalds */ 22319f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22329f06c719SChuck Lever struct xdr_stream *xdr, 22339f06c719SChuck Lever struct nfs_open_confirmargs *args) 22341da177e4SLinus Torvalds { 22351da177e4SLinus Torvalds struct compound_hdr hdr = { 2236d017931cSAndy Adamson .nops = 0, 22371da177e4SLinus Torvalds }; 22381da177e4SLinus Torvalds 22399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22409f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22419f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2242d017931cSAndy Adamson encode_nops(&hdr); 22431da177e4SLinus Torvalds } 22441da177e4SLinus Torvalds 22451da177e4SLinus Torvalds /* 22461da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 22471da177e4SLinus Torvalds */ 22489f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 22499f06c719SChuck Lever struct xdr_stream *xdr, 22509f06c719SChuck Lever struct nfs_openargs *args) 22511da177e4SLinus Torvalds { 22521da177e4SLinus Torvalds struct compound_hdr hdr = { 225366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22541da177e4SLinus Torvalds }; 22551da177e4SLinus Torvalds 22569f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22579f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22589f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22599f06c719SChuck Lever encode_open(xdr, args, &hdr); 2260ae2bb032SWeston Andros Adamson if (args->access) 22616168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2262e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2263d017931cSAndy Adamson encode_nops(&hdr); 22641da177e4SLinus Torvalds } 22651da177e4SLinus Torvalds 22661da177e4SLinus Torvalds /* 22671da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 22681da177e4SLinus Torvalds */ 22699f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 22709f06c719SChuck Lever struct xdr_stream *xdr, 22719f06c719SChuck Lever struct nfs_closeargs *args) 22721da177e4SLinus Torvalds { 22731da177e4SLinus Torvalds struct compound_hdr hdr = { 227466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22751da177e4SLinus Torvalds }; 22761da177e4SLinus Torvalds 22779f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22789f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22799f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22809f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 22819f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2282d017931cSAndy Adamson encode_nops(&hdr); 22831da177e4SLinus Torvalds } 22841da177e4SLinus Torvalds 22851da177e4SLinus Torvalds /* 22861da177e4SLinus Torvalds * Encode a LOCK request 22871da177e4SLinus Torvalds */ 22889f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 22899f06c719SChuck Lever struct nfs_lock_args *args) 22901da177e4SLinus Torvalds { 22911da177e4SLinus Torvalds struct compound_hdr hdr = { 229266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22931da177e4SLinus Torvalds }; 22941da177e4SLinus Torvalds 22959f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22969f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22979f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22989f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2299d017931cSAndy Adamson encode_nops(&hdr); 23001da177e4SLinus Torvalds } 23011da177e4SLinus Torvalds 23021da177e4SLinus Torvalds /* 23031da177e4SLinus Torvalds * Encode a LOCKT request 23041da177e4SLinus Torvalds */ 23059f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23069f06c719SChuck Lever struct nfs_lockt_args *args) 23071da177e4SLinus Torvalds { 23081da177e4SLinus Torvalds struct compound_hdr hdr = { 230966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23101da177e4SLinus Torvalds }; 23111da177e4SLinus Torvalds 23129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23139f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23149f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23159f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2316d017931cSAndy Adamson encode_nops(&hdr); 23171da177e4SLinus Torvalds } 23181da177e4SLinus Torvalds 23191da177e4SLinus Torvalds /* 23201da177e4SLinus Torvalds * Encode a LOCKU request 23211da177e4SLinus Torvalds */ 23229f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23239f06c719SChuck Lever struct nfs_locku_args *args) 23241da177e4SLinus Torvalds { 23251da177e4SLinus Torvalds struct compound_hdr hdr = { 232666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23271da177e4SLinus Torvalds }; 23281da177e4SLinus Torvalds 23299f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23309f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23319f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23329f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2333d017931cSAndy Adamson encode_nops(&hdr); 23341da177e4SLinus Torvalds } 23351da177e4SLinus Torvalds 23369f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23379f06c719SChuck Lever struct xdr_stream *xdr, 23389f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2339d3c7b7ccSTrond Myklebust { 2340d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2341d3c7b7ccSTrond Myklebust .minorversion = 0, 2342d3c7b7ccSTrond Myklebust }; 2343d3c7b7ccSTrond Myklebust 23449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23459f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2346d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2347d3c7b7ccSTrond Myklebust } 2348d3c7b7ccSTrond Myklebust 23491da177e4SLinus Torvalds /* 23501da177e4SLinus Torvalds * Encode a READLINK request 23511da177e4SLinus Torvalds */ 23529f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 23539f06c719SChuck Lever const struct nfs4_readlink *args) 23541da177e4SLinus Torvalds { 23551da177e4SLinus Torvalds struct compound_hdr hdr = { 235666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23571da177e4SLinus Torvalds }; 23581da177e4SLinus Torvalds 23599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23619f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23629f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2363e3a535e1STrond Myklebust 236428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2365e3a535e1STrond Myklebust args->pgbase, args->pglen); 2366d017931cSAndy Adamson encode_nops(&hdr); 23671da177e4SLinus Torvalds } 23681da177e4SLinus Torvalds 23691da177e4SLinus Torvalds /* 23701da177e4SLinus Torvalds * Encode a READDIR request 23711da177e4SLinus Torvalds */ 23729f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 23739f06c719SChuck Lever const struct nfs4_readdir_arg *args) 23741da177e4SLinus Torvalds { 23751da177e4SLinus Torvalds struct compound_hdr hdr = { 237666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23771da177e4SLinus Torvalds }; 23781da177e4SLinus Torvalds 23799f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23809f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23819f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23829f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2383d6ac02dfSTrond Myklebust 238428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2385d6ac02dfSTrond Myklebust args->pgbase, args->count); 2386d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 238728f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2388d6ac02dfSTrond Myklebust args->pgbase, args->count); 2389d017931cSAndy Adamson encode_nops(&hdr); 23901da177e4SLinus Torvalds } 23911da177e4SLinus Torvalds 23921da177e4SLinus Torvalds /* 23931da177e4SLinus Torvalds * Encode a READ request 23941da177e4SLinus Torvalds */ 23959f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 23969f06c719SChuck Lever struct nfs_readargs *args) 23971da177e4SLinus Torvalds { 23981da177e4SLinus Torvalds struct compound_hdr hdr = { 239966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24001da177e4SLinus Torvalds }; 24011da177e4SLinus Torvalds 24029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24049f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24059f06c719SChuck Lever encode_read(xdr, args, &hdr); 24061da177e4SLinus Torvalds 240728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24081da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24094f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2410d017931cSAndy Adamson encode_nops(&hdr); 24111da177e4SLinus Torvalds } 24121da177e4SLinus Torvalds 24131da177e4SLinus Torvalds /* 24141da177e4SLinus Torvalds * Encode an SETATTR request 24151da177e4SLinus Torvalds */ 24169f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24179f06c719SChuck Lever struct nfs_setattrargs *args) 24181da177e4SLinus Torvalds { 24191da177e4SLinus Torvalds struct compound_hdr hdr = { 242066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24211da177e4SLinus Torvalds }; 24221da177e4SLinus Torvalds 24239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24249f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24259f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24269f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24279f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2428d017931cSAndy Adamson encode_nops(&hdr); 24291da177e4SLinus Torvalds } 24301da177e4SLinus Torvalds 24311da177e4SLinus Torvalds /* 2432029d105eSJ. Bruce Fields * Encode a GETACL request 2433029d105eSJ. Bruce Fields */ 24349f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2435029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2436029d105eSJ. Bruce Fields { 2437029d105eSJ. Bruce Fields struct compound_hdr hdr = { 243866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2439029d105eSJ. Bruce Fields }; 244028f56694SBenny Halevy uint32_t replen; 2441029d105eSJ. Bruce Fields 24429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2445bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 24469f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2447cf8cdbe5SAndy Adamson 244828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2449029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2450bf118a34SAndy Adamson 2451d017931cSAndy Adamson encode_nops(&hdr); 2452029d105eSJ. Bruce Fields } 2453029d105eSJ. Bruce Fields 2454029d105eSJ. Bruce Fields /* 24551da177e4SLinus Torvalds * Encode a WRITE request 24561da177e4SLinus Torvalds */ 24579f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 24589f06c719SChuck Lever struct nfs_writeargs *args) 24591da177e4SLinus Torvalds { 24601da177e4SLinus Torvalds struct compound_hdr hdr = { 246166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24621da177e4SLinus Torvalds }; 24631da177e4SLinus Torvalds 24649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24669f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24679f06c719SChuck Lever encode_write(xdr, args, &hdr); 24684f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 24697ffd1064SFred Isaman if (args->bitmask) 24709f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2471d017931cSAndy Adamson encode_nops(&hdr); 24721da177e4SLinus Torvalds } 24731da177e4SLinus Torvalds 24741da177e4SLinus Torvalds /* 24751da177e4SLinus Torvalds * a COMMIT request 24761da177e4SLinus Torvalds */ 24779f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 24780b7c0153SFred Isaman struct nfs_commitargs *args) 24791da177e4SLinus Torvalds { 24801da177e4SLinus Torvalds struct compound_hdr hdr = { 248166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24821da177e4SLinus Torvalds }; 24831da177e4SLinus Torvalds 24849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24859f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24869f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24879f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2488d017931cSAndy Adamson encode_nops(&hdr); 24891da177e4SLinus Torvalds } 24901da177e4SLinus Torvalds 24911da177e4SLinus Torvalds /* 24921da177e4SLinus Torvalds * FSINFO request 24931da177e4SLinus Torvalds */ 24949f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 24959f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 24961da177e4SLinus Torvalds { 24971da177e4SLinus Torvalds struct compound_hdr hdr = { 249866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24991da177e4SLinus Torvalds }; 25001da177e4SLinus Torvalds 25019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25049f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2505d017931cSAndy Adamson encode_nops(&hdr); 25061da177e4SLinus Torvalds } 25071da177e4SLinus Torvalds 25081da177e4SLinus Torvalds /* 25091da177e4SLinus Torvalds * a PATHCONF request 25101da177e4SLinus Torvalds */ 25119f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25129f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25131da177e4SLinus Torvalds { 25141da177e4SLinus Torvalds struct compound_hdr hdr = { 251566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25161da177e4SLinus Torvalds }; 25171da177e4SLinus Torvalds 25189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25209f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25219f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2522d017931cSAndy Adamson &hdr); 2523d017931cSAndy Adamson encode_nops(&hdr); 25241da177e4SLinus Torvalds } 25251da177e4SLinus Torvalds 25261da177e4SLinus Torvalds /* 25271da177e4SLinus Torvalds * a STATFS request 25281da177e4SLinus Torvalds */ 25299f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25309f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25311da177e4SLinus Torvalds { 25321da177e4SLinus Torvalds struct compound_hdr hdr = { 253366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25341da177e4SLinus Torvalds }; 25351da177e4SLinus Torvalds 25369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25379f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25389f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25399f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2540d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2541d017931cSAndy Adamson encode_nops(&hdr); 25421da177e4SLinus Torvalds } 25431da177e4SLinus Torvalds 25441da177e4SLinus Torvalds /* 25451da177e4SLinus Torvalds * GETATTR_BITMAP request 25461da177e4SLinus Torvalds */ 25479f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 25489f06c719SChuck Lever struct xdr_stream *xdr, 254943652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 25501da177e4SLinus Torvalds { 25511da177e4SLinus Torvalds struct compound_hdr hdr = { 255266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25531da177e4SLinus Torvalds }; 25541da177e4SLinus Torvalds 25559f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25569f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25579f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 25589f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2559264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 25601da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 25611da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2562d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2563d017931cSAndy Adamson encode_nops(&hdr); 25641da177e4SLinus Torvalds } 25651da177e4SLinus Torvalds 25661da177e4SLinus Torvalds /* 25671da177e4SLinus Torvalds * a RENEW request 25681da177e4SLinus Torvalds */ 25699f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 25709f06c719SChuck Lever struct nfs_client *clp) 25711da177e4SLinus Torvalds { 25721da177e4SLinus Torvalds struct compound_hdr hdr = { 2573d017931cSAndy Adamson .nops = 0, 25741da177e4SLinus Torvalds }; 25751da177e4SLinus Torvalds 25769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2577bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2578d017931cSAndy Adamson encode_nops(&hdr); 25791da177e4SLinus Torvalds } 25801da177e4SLinus Torvalds 25811da177e4SLinus Torvalds /* 25821da177e4SLinus Torvalds * a SETCLIENTID request 25831da177e4SLinus Torvalds */ 25849f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 25859f06c719SChuck Lever struct xdr_stream *xdr, 25869f06c719SChuck Lever struct nfs4_setclientid *sc) 25871da177e4SLinus Torvalds { 25881da177e4SLinus Torvalds struct compound_hdr hdr = { 2589d017931cSAndy Adamson .nops = 0, 25901da177e4SLinus Torvalds }; 25911da177e4SLinus Torvalds 25929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25939f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2594d017931cSAndy Adamson encode_nops(&hdr); 25951da177e4SLinus Torvalds } 25961da177e4SLinus Torvalds 25971da177e4SLinus Torvalds /* 25981da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 25991da177e4SLinus Torvalds */ 26009f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26019f06c719SChuck Lever struct xdr_stream *xdr, 26029f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26031da177e4SLinus Torvalds { 26041da177e4SLinus Torvalds struct compound_hdr hdr = { 2605d017931cSAndy Adamson .nops = 0, 26061da177e4SLinus Torvalds }; 26071da177e4SLinus Torvalds 26089f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26099f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 2610d017931cSAndy Adamson encode_nops(&hdr); 26111da177e4SLinus Torvalds } 26121da177e4SLinus Torvalds 26131da177e4SLinus Torvalds /* 26141da177e4SLinus Torvalds * DELEGRETURN request 26151da177e4SLinus Torvalds */ 26169f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26179f06c719SChuck Lever struct xdr_stream *xdr, 26189f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26191da177e4SLinus Torvalds { 26201da177e4SLinus Torvalds struct compound_hdr hdr = { 262166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26221da177e4SLinus Torvalds }; 26231da177e4SLinus Torvalds 26249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26269f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26279f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2628e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2629d017931cSAndy Adamson encode_nops(&hdr); 26301da177e4SLinus Torvalds } 26311da177e4SLinus Torvalds 26321da177e4SLinus Torvalds /* 2633683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2634683b57b4STrond Myklebust */ 26359f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26369f06c719SChuck Lever struct xdr_stream *xdr, 26379f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2638683b57b4STrond Myklebust { 2639683b57b4STrond Myklebust struct compound_hdr hdr = { 264066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2641683b57b4STrond Myklebust }; 264228f56694SBenny Halevy uint32_t replen; 2643683b57b4STrond Myklebust 26449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26459f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26469f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 26479f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 264828f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 26499f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2650cf8cdbe5SAndy Adamson 265128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2652683b57b4STrond Myklebust 0, PAGE_SIZE); 2653d017931cSAndy Adamson encode_nops(&hdr); 2654683b57b4STrond Myklebust } 2655683b57b4STrond Myklebust 26565a5ea0d4SBryan Schumaker /* 26575a5ea0d4SBryan Schumaker * Encode SECINFO request 26585a5ea0d4SBryan Schumaker */ 26595a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 26605a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 26615a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 26625a5ea0d4SBryan Schumaker { 26635a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 26645a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26655a5ea0d4SBryan Schumaker }; 26665a5ea0d4SBryan Schumaker 26675a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 26685a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 26695a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 26705a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 26715a5ea0d4SBryan Schumaker encode_nops(&hdr); 26725a5ea0d4SBryan Schumaker } 26735a5ea0d4SBryan Schumaker 267499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 267599fe60d0SBenny Halevy /* 26767c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 26777c44f1aeSWeston Andros Adamson */ 26787c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 26797c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 26807c44f1aeSWeston Andros Adamson struct nfs_client *clp) 26817c44f1aeSWeston Andros Adamson { 26827c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 26837c44f1aeSWeston Andros Adamson .minorversion = clp->cl_mvops->minor_version, 26847c44f1aeSWeston Andros Adamson }; 26857c44f1aeSWeston Andros Adamson 26867c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 26877c44f1aeSWeston Andros Adamson encode_bind_conn_to_session(xdr, clp->cl_session, &hdr); 26887c44f1aeSWeston Andros Adamson encode_nops(&hdr); 26897c44f1aeSWeston Andros Adamson } 26907c44f1aeSWeston Andros Adamson 26917c44f1aeSWeston Andros Adamson /* 269299fe60d0SBenny Halevy * EXCHANGE_ID request 269399fe60d0SBenny Halevy */ 26949f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 26959f06c719SChuck Lever struct xdr_stream *xdr, 269699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 269799fe60d0SBenny Halevy { 269899fe60d0SBenny Halevy struct compound_hdr hdr = { 2699a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 270099fe60d0SBenny Halevy }; 270199fe60d0SBenny Halevy 27029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27039f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 270499fe60d0SBenny Halevy encode_nops(&hdr); 270599fe60d0SBenny Halevy } 27062050f0ccSAndy Adamson 27072050f0ccSAndy Adamson /* 2708fc931582SAndy Adamson * a CREATE_SESSION request 2709fc931582SAndy Adamson */ 27109f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27119f06c719SChuck Lever struct xdr_stream *xdr, 2712fc931582SAndy Adamson struct nfs41_create_session_args *args) 2713fc931582SAndy Adamson { 2714fc931582SAndy Adamson struct compound_hdr hdr = { 2715a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2716fc931582SAndy Adamson }; 2717fc931582SAndy Adamson 27189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27199f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2720fc931582SAndy Adamson encode_nops(&hdr); 2721fc931582SAndy Adamson } 2722fc931582SAndy Adamson 2723fc931582SAndy Adamson /* 27240f3e66c6SAndy Adamson * a DESTROY_SESSION request 27250f3e66c6SAndy Adamson */ 27269f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 27279f06c719SChuck Lever struct xdr_stream *xdr, 27280f3e66c6SAndy Adamson struct nfs4_session *session) 27290f3e66c6SAndy Adamson { 27300f3e66c6SAndy Adamson struct compound_hdr hdr = { 2731a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 27320f3e66c6SAndy Adamson }; 27330f3e66c6SAndy Adamson 27349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27359f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 27360f3e66c6SAndy Adamson encode_nops(&hdr); 27370f3e66c6SAndy Adamson } 27380f3e66c6SAndy Adamson 27390f3e66c6SAndy Adamson /* 274066245539STrond Myklebust * a DESTROY_CLIENTID request 274166245539STrond Myklebust */ 274266245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 274366245539STrond Myklebust struct xdr_stream *xdr, 274466245539STrond Myklebust struct nfs_client *clp) 274566245539STrond Myklebust { 274666245539STrond Myklebust struct compound_hdr hdr = { 274766245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 274866245539STrond Myklebust }; 274966245539STrond Myklebust 275066245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 275166245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 275266245539STrond Myklebust encode_nops(&hdr); 275366245539STrond Myklebust } 275466245539STrond Myklebust 275566245539STrond Myklebust /* 2756fc01cea9SAndy Adamson * a SEQUENCE request 2757fc01cea9SAndy Adamson */ 27589f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2759fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2760fc01cea9SAndy Adamson { 2761fc01cea9SAndy Adamson struct compound_hdr hdr = { 2762fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2763fc01cea9SAndy Adamson }; 2764fc01cea9SAndy Adamson 27659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27669f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2767fc01cea9SAndy Adamson encode_nops(&hdr); 2768fc01cea9SAndy Adamson } 2769fc01cea9SAndy Adamson 2770fc01cea9SAndy Adamson /* 27712050f0ccSAndy Adamson * a GET_LEASE_TIME request 27722050f0ccSAndy Adamson */ 27739f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 27749f06c719SChuck Lever struct xdr_stream *xdr, 27752050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 27762050f0ccSAndy Adamson { 27772050f0ccSAndy Adamson struct compound_hdr hdr = { 27782050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 27792050f0ccSAndy Adamson }; 2780dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27812050f0ccSAndy Adamson 27829f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27839f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 27849f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27859f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 27862050f0ccSAndy Adamson encode_nops(&hdr); 27872050f0ccSAndy Adamson } 278818019753SRicardo Labiaga 278918019753SRicardo Labiaga /* 279018019753SRicardo Labiaga * a RECLAIM_COMPLETE request 279118019753SRicardo Labiaga */ 27929f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 27939f06c719SChuck Lever struct xdr_stream *xdr, 279418019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 279518019753SRicardo Labiaga { 279618019753SRicardo Labiaga struct compound_hdr hdr = { 279718019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 279818019753SRicardo Labiaga }; 279918019753SRicardo Labiaga 28009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28029f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 280318019753SRicardo Labiaga encode_nops(&hdr); 280418019753SRicardo Labiaga } 280518019753SRicardo Labiaga 2806b1f69b75SAndy Adamson /* 28077f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28087f11d8d3SAndy Adamson */ 28097f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28107f11d8d3SAndy Adamson struct xdr_stream *xdr, 28117f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 28127f11d8d3SAndy Adamson { 28137f11d8d3SAndy Adamson struct compound_hdr hdr = { 28147f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 28157f11d8d3SAndy Adamson }; 28167f11d8d3SAndy Adamson 28177f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 28187f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 28197f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 28207f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 28217f11d8d3SAndy Adamson encode_nops(&hdr); 28227f11d8d3SAndy Adamson } 28237f11d8d3SAndy Adamson 28247f11d8d3SAndy Adamson /* 2825b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2826b1f69b75SAndy Adamson */ 28279f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28289f06c719SChuck Lever struct xdr_stream *xdr, 2829b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2830b1f69b75SAndy Adamson { 2831b1f69b75SAndy Adamson struct compound_hdr hdr = { 2832b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2833b1f69b75SAndy Adamson }; 2834b1f69b75SAndy Adamson 28359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28369f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28379f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2838b1f69b75SAndy Adamson 2839b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2840b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2841b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2842b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2843b1f69b75SAndy Adamson args->pdev->pglen); 2844b1f69b75SAndy Adamson 2845b1f69b75SAndy Adamson encode_nops(&hdr); 2846b1f69b75SAndy Adamson } 2847b1f69b75SAndy Adamson 2848b1f69b75SAndy Adamson /* 2849b1f69b75SAndy Adamson * Encode LAYOUTGET request 2850b1f69b75SAndy Adamson */ 28519f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 28529f06c719SChuck Lever struct xdr_stream *xdr, 2853b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2854b1f69b75SAndy Adamson { 2855b1f69b75SAndy Adamson struct compound_hdr hdr = { 2856b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2857b1f69b75SAndy Adamson }; 2858b1f69b75SAndy Adamson 28599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28619f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 28629f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 286335124a09SWeston Andros Adamson 286435124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 286535124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 286635124a09SWeston Andros Adamson 2867b1f69b75SAndy Adamson encode_nops(&hdr); 2868b1f69b75SAndy Adamson } 2869863a3c6cSAndy Adamson 2870863a3c6cSAndy Adamson /* 2871863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2872863a3c6cSAndy Adamson */ 2873cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2874863a3c6cSAndy Adamson struct xdr_stream *xdr, 2875863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2876863a3c6cSAndy Adamson { 2877ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2878ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2879863a3c6cSAndy Adamson struct compound_hdr hdr = { 2880863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2881863a3c6cSAndy Adamson }; 2882863a3c6cSAndy Adamson 2883863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2884863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2885863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2886ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2887863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2888863a3c6cSAndy Adamson encode_nops(&hdr); 2889cbe82603SBenny Halevy } 2890cbe82603SBenny Halevy 2891cbe82603SBenny Halevy /* 2892cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2893cbe82603SBenny Halevy */ 2894cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2895cbe82603SBenny Halevy struct xdr_stream *xdr, 2896cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2897cbe82603SBenny Halevy { 2898cbe82603SBenny Halevy struct compound_hdr hdr = { 2899cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2900cbe82603SBenny Halevy }; 2901cbe82603SBenny Halevy 2902cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2903cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2904cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2905cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2906cbe82603SBenny Halevy encode_nops(&hdr); 2907863a3c6cSAndy Adamson } 2908fca78d6dSBryan Schumaker 2909fca78d6dSBryan Schumaker /* 2910fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2911fca78d6dSBryan Schumaker */ 2912fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2913fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2914fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2915fca78d6dSBryan Schumaker { 2916fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2917fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2918fca78d6dSBryan Schumaker }; 2919fca78d6dSBryan Schumaker 2920fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2921fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2922fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2923fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2924fca78d6dSBryan Schumaker encode_nops(&hdr); 2925fca78d6dSBryan Schumaker return 0; 2926fca78d6dSBryan Schumaker } 29277d974794SBryan Schumaker 29287d974794SBryan Schumaker /* 29297d974794SBryan Schumaker * Encode TEST_STATEID request 29307d974794SBryan Schumaker */ 29317d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29327d974794SBryan Schumaker struct xdr_stream *xdr, 29337d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29347d974794SBryan Schumaker { 29357d974794SBryan Schumaker struct compound_hdr hdr = { 29367d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29377d974794SBryan Schumaker }; 29387d974794SBryan Schumaker 29397d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29407d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29417d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 29427d974794SBryan Schumaker encode_nops(&hdr); 29437d974794SBryan Schumaker } 29449aeda35fSBryan Schumaker 29459aeda35fSBryan Schumaker /* 29469aeda35fSBryan Schumaker * Encode FREE_STATEID request 29479aeda35fSBryan Schumaker */ 29489aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 29499aeda35fSBryan Schumaker struct xdr_stream *xdr, 29509aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 29519aeda35fSBryan Schumaker { 29529aeda35fSBryan Schumaker struct compound_hdr hdr = { 29539aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29549aeda35fSBryan Schumaker }; 29559aeda35fSBryan Schumaker 29569aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29579aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29589aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 29599aeda35fSBryan Schumaker encode_nops(&hdr); 29609aeda35fSBryan Schumaker } 296199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 296299fe60d0SBenny Halevy 2963686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2964686841b3SBenny Halevy { 2965686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2966686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2967686841b3SBenny Halevy func, xdr->end - xdr->p); 2968686841b3SBenny Halevy } 29691da177e4SLinus Torvalds 2970683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 29711da177e4SLinus Torvalds { 29728687b63aSAl Viro __be32 *p; 29731da177e4SLinus Torvalds 2974c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2975c0eae66eSBenny Halevy if (unlikely(!p)) 2976c0eae66eSBenny Halevy goto out_overflow; 2977cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2978c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2979c0eae66eSBenny Halevy if (unlikely(!p)) 2980c0eae66eSBenny Halevy goto out_overflow; 29811da177e4SLinus Torvalds *string = (char *)p; 29821da177e4SLinus Torvalds return 0; 2983c0eae66eSBenny Halevy out_overflow: 2984c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2985c0eae66eSBenny Halevy return -EIO; 29861da177e4SLinus Torvalds } 29871da177e4SLinus Torvalds 29881da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 29891da177e4SLinus Torvalds { 29908687b63aSAl Viro __be32 *p; 29911da177e4SLinus Torvalds 2992c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2993c0eae66eSBenny Halevy if (unlikely(!p)) 2994c0eae66eSBenny Halevy goto out_overflow; 29956f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2996cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 29971da177e4SLinus Torvalds 2998c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2999c0eae66eSBenny Halevy if (unlikely(!p)) 3000c0eae66eSBenny Halevy goto out_overflow; 30011da177e4SLinus Torvalds hdr->tag = (char *)p; 30021da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3003cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3004aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3005aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30061da177e4SLinus Torvalds return 0; 3007c0eae66eSBenny Halevy out_overflow: 3008c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3009c0eae66eSBenny Halevy return -EIO; 30101da177e4SLinus Torvalds } 30111da177e4SLinus Torvalds 30121da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 30131da177e4SLinus Torvalds { 30148687b63aSAl Viro __be32 *p; 30151da177e4SLinus Torvalds uint32_t opnum; 30161da177e4SLinus Torvalds int32_t nfserr; 30171da177e4SLinus Torvalds 3018c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3019c0eae66eSBenny Halevy if (unlikely(!p)) 3020c0eae66eSBenny Halevy goto out_overflow; 30216f723f77SBenny Halevy opnum = be32_to_cpup(p++); 30221da177e4SLinus Torvalds if (opnum != expected) { 3023fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30241da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30251da177e4SLinus Torvalds opnum, expected); 30261da177e4SLinus Torvalds return -EIO; 30271da177e4SLinus Torvalds } 3028cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 30291da177e4SLinus Torvalds if (nfserr != NFS_OK) 3030856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 30311da177e4SLinus Torvalds return 0; 3032c0eae66eSBenny Halevy out_overflow: 3033c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3034c0eae66eSBenny Halevy return -EIO; 30351da177e4SLinus Torvalds } 30361da177e4SLinus Torvalds 30371da177e4SLinus Torvalds /* Dummy routine */ 3038adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 30391da177e4SLinus Torvalds { 30408687b63aSAl Viro __be32 *p; 3041683b57b4STrond Myklebust unsigned int strlen; 30421da177e4SLinus Torvalds char *str; 30431da177e4SLinus Torvalds 3044c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3045c0eae66eSBenny Halevy if (likely(p)) 30461da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3047c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3048c0eae66eSBenny Halevy return -EIO; 30491da177e4SLinus Torvalds } 30501da177e4SLinus Torvalds 30511da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 30521da177e4SLinus Torvalds { 30538687b63aSAl Viro uint32_t bmlen; 30548687b63aSAl Viro __be32 *p; 30551da177e4SLinus Torvalds 3056c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3057c0eae66eSBenny Halevy if (unlikely(!p)) 3058c0eae66eSBenny Halevy goto out_overflow; 3059cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 30601da177e4SLinus Torvalds 3061dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3062c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3063c0eae66eSBenny Halevy if (unlikely(!p)) 3064c0eae66eSBenny Halevy goto out_overflow; 30651da177e4SLinus Torvalds if (bmlen > 0) { 30666f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3067dae100c2SFred Isaman if (bmlen > 1) { 3068dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3069dae100c2SFred Isaman if (bmlen > 2) 3070dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3071dae100c2SFred Isaman } 30721da177e4SLinus Torvalds } 30731da177e4SLinus Torvalds return 0; 3074c0eae66eSBenny Halevy out_overflow: 3075c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3076c0eae66eSBenny Halevy return -EIO; 30771da177e4SLinus Torvalds } 30781da177e4SLinus Torvalds 3079256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 30801da177e4SLinus Torvalds { 30818687b63aSAl Viro __be32 *p; 30821da177e4SLinus Torvalds 3083c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3084c0eae66eSBenny Halevy if (unlikely(!p)) 3085c0eae66eSBenny Halevy goto out_overflow; 3086cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3087256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 30881da177e4SLinus Torvalds return 0; 3089c0eae66eSBenny Halevy out_overflow: 3090c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3091c0eae66eSBenny Halevy return -EIO; 30921da177e4SLinus Torvalds } 30931da177e4SLinus Torvalds 30941da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 30951da177e4SLinus Torvalds { 30961da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 30973388bff5SRoman Borisov int ret; 30983388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 30993388bff5SRoman Borisov if (unlikely(ret < 0)) 31003388bff5SRoman Borisov return ret; 31011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31021da177e4SLinus Torvalds } else 3103dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3104dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3105dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31061da177e4SLinus Torvalds return 0; 31071da177e4SLinus Torvalds } 31081da177e4SLinus Torvalds 31091da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31101da177e4SLinus Torvalds { 31118687b63aSAl Viro __be32 *p; 3112409924e4STrond Myklebust int ret = 0; 31131da177e4SLinus Torvalds 31141da177e4SLinus Torvalds *type = 0; 31151da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31161da177e4SLinus Torvalds return -EIO; 31171da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3118c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3119c0eae66eSBenny Halevy if (unlikely(!p)) 3120c0eae66eSBenny Halevy goto out_overflow; 3121cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31221da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31233110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31241da177e4SLinus Torvalds return -EIO; 31251da177e4SLinus Torvalds } 31261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3127409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 31281da177e4SLinus Torvalds } 3129bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3130409924e4STrond Myklebust return ret; 3131c0eae66eSBenny Halevy out_overflow: 3132c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3133c0eae66eSBenny Halevy return -EIO; 31341da177e4SLinus Torvalds } 31351da177e4SLinus Torvalds 3136264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3137264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3138264e6351SChuck Lever { 3139264e6351SChuck Lever __be32 *p; 3140264e6351SChuck Lever 3141264e6351SChuck Lever *type = 0; 3142264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3143264e6351SChuck Lever return -EIO; 3144264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3145264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3146264e6351SChuck Lever if (unlikely(!p)) 3147264e6351SChuck Lever goto out_overflow; 3148264e6351SChuck Lever *type = be32_to_cpup(p); 3149264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3150264e6351SChuck Lever } 3151264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3152264e6351SChuck Lever return 0; 3153264e6351SChuck Lever out_overflow: 3154264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3155264e6351SChuck Lever return -EIO; 3156264e6351SChuck Lever } 3157264e6351SChuck Lever 31581da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 31591da177e4SLinus Torvalds { 31608687b63aSAl Viro __be32 *p; 3161409924e4STrond Myklebust int ret = 0; 31621da177e4SLinus Torvalds 31631da177e4SLinus Torvalds *change = 0; 31641da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 31651da177e4SLinus Torvalds return -EIO; 31661da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3167c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3168c0eae66eSBenny Halevy if (unlikely(!p)) 3169c0eae66eSBenny Halevy goto out_overflow; 3170cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 31711da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3172409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 31731da177e4SLinus Torvalds } 31743110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 31751da177e4SLinus Torvalds (unsigned long long)*change); 3176409924e4STrond Myklebust return ret; 3177c0eae66eSBenny Halevy out_overflow: 3178c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3179c0eae66eSBenny Halevy return -EIO; 31801da177e4SLinus Torvalds } 31811da177e4SLinus Torvalds 31821da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 31831da177e4SLinus Torvalds { 31848687b63aSAl Viro __be32 *p; 3185409924e4STrond Myklebust int ret = 0; 31861da177e4SLinus Torvalds 31871da177e4SLinus Torvalds *size = 0; 31881da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 31891da177e4SLinus Torvalds return -EIO; 31901da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3191c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3192c0eae66eSBenny Halevy if (unlikely(!p)) 3193c0eae66eSBenny Halevy goto out_overflow; 3194cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 31951da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3196409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 31971da177e4SLinus Torvalds } 31983110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3199409924e4STrond Myklebust return ret; 3200c0eae66eSBenny Halevy out_overflow: 3201c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3202c0eae66eSBenny Halevy return -EIO; 32031da177e4SLinus Torvalds } 32041da177e4SLinus Torvalds 32051da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32061da177e4SLinus Torvalds { 32078687b63aSAl Viro __be32 *p; 32081da177e4SLinus Torvalds 32091da177e4SLinus Torvalds *res = 0; 32101da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32111da177e4SLinus Torvalds return -EIO; 32121da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3213c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3214c0eae66eSBenny Halevy if (unlikely(!p)) 3215c0eae66eSBenny Halevy goto out_overflow; 3216cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32171da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32181da177e4SLinus Torvalds } 32193110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32201da177e4SLinus Torvalds return 0; 3221c0eae66eSBenny Halevy out_overflow: 3222c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3223c0eae66eSBenny Halevy return -EIO; 32241da177e4SLinus Torvalds } 32251da177e4SLinus Torvalds 32261da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32271da177e4SLinus Torvalds { 32288687b63aSAl Viro __be32 *p; 32291da177e4SLinus Torvalds 32301da177e4SLinus Torvalds *res = 0; 32311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32321da177e4SLinus Torvalds return -EIO; 32331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3234c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3235c0eae66eSBenny Halevy if (unlikely(!p)) 3236c0eae66eSBenny Halevy goto out_overflow; 3237cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 32391da177e4SLinus Torvalds } 32403110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 32411da177e4SLinus Torvalds return 0; 3242c0eae66eSBenny Halevy out_overflow: 3243c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3244c0eae66eSBenny Halevy return -EIO; 32451da177e4SLinus Torvalds } 32461da177e4SLinus Torvalds 32478b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 32481da177e4SLinus Torvalds { 32498687b63aSAl Viro __be32 *p; 3250409924e4STrond Myklebust int ret = 0; 32511da177e4SLinus Torvalds 32521da177e4SLinus Torvalds fsid->major = 0; 32531da177e4SLinus Torvalds fsid->minor = 0; 32541da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 32551da177e4SLinus Torvalds return -EIO; 32561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3257c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3258c0eae66eSBenny Halevy if (unlikely(!p)) 3259c0eae66eSBenny Halevy goto out_overflow; 32603ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3261cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 32621da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3263409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 32641da177e4SLinus Torvalds } 32653110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 32661da177e4SLinus Torvalds (unsigned long long)fsid->major, 32671da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3268409924e4STrond Myklebust return ret; 3269c0eae66eSBenny Halevy out_overflow: 3270c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3271c0eae66eSBenny Halevy return -EIO; 32721da177e4SLinus Torvalds } 32731da177e4SLinus Torvalds 32741da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32751da177e4SLinus Torvalds { 32768687b63aSAl Viro __be32 *p; 32771da177e4SLinus Torvalds 32781da177e4SLinus Torvalds *res = 60; 32791da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 32801da177e4SLinus Torvalds return -EIO; 32811da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3282c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3283c0eae66eSBenny Halevy if (unlikely(!p)) 3284c0eae66eSBenny Halevy goto out_overflow; 3285cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 32871da177e4SLinus Torvalds } 32883110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 32891da177e4SLinus Torvalds return 0; 3290c0eae66eSBenny Halevy out_overflow: 3291c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3292c0eae66eSBenny Halevy return -EIO; 32931da177e4SLinus Torvalds } 32941da177e4SLinus Torvalds 3295ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3296ae42c70aSBryan Schumaker { 3297ae42c70aSBryan Schumaker __be32 *p; 3298ae42c70aSBryan Schumaker 3299ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3300ae42c70aSBryan Schumaker return -EIO; 3301ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3302ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3303ae42c70aSBryan Schumaker if (unlikely(!p)) 3304ae42c70aSBryan Schumaker goto out_overflow; 3305ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3306ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3307ae42c70aSBryan Schumaker } 3308ae42c70aSBryan Schumaker return 0; 3309ae42c70aSBryan Schumaker out_overflow: 3310ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3311ae42c70aSBryan Schumaker return -EIO; 3312ae42c70aSBryan Schumaker } 3313ae42c70aSBryan Schumaker 3314ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3315ae42c70aSBryan Schumaker { 3316ae42c70aSBryan Schumaker __be32 *p; 3317ae42c70aSBryan Schumaker int len; 3318ae42c70aSBryan Schumaker 33197ad07353STrond Myklebust if (fh != NULL) 3320ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3321ae42c70aSBryan Schumaker 3322ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3323ae42c70aSBryan Schumaker return -EIO; 3324ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3325ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3326ae42c70aSBryan Schumaker if (unlikely(!p)) 3327ae42c70aSBryan Schumaker goto out_overflow; 3328ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3329ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3330ae42c70aSBryan Schumaker return -EIO; 3331ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3332ae42c70aSBryan Schumaker if (unlikely(!p)) 3333ae42c70aSBryan Schumaker goto out_overflow; 33347ad07353STrond Myklebust if (fh != NULL) { 3335ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 33367ad07353STrond Myklebust fh->size = len; 33377ad07353STrond Myklebust } 3338ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3339ae42c70aSBryan Schumaker } 3340ae42c70aSBryan Schumaker return 0; 3341ae42c70aSBryan Schumaker out_overflow: 3342ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3343ae42c70aSBryan Schumaker return -EIO; 3344ae42c70aSBryan Schumaker } 3345ae42c70aSBryan Schumaker 33461da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33471da177e4SLinus Torvalds { 33488687b63aSAl Viro __be32 *p; 33491da177e4SLinus Torvalds 33501da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 33511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 33521da177e4SLinus Torvalds return -EIO; 33531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3354c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3355c0eae66eSBenny Halevy if (unlikely(!p)) 3356c0eae66eSBenny Halevy goto out_overflow; 3357cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 33591da177e4SLinus Torvalds } 33603110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 33611da177e4SLinus Torvalds return 0; 3362c0eae66eSBenny Halevy out_overflow: 3363c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3364c0eae66eSBenny Halevy return -EIO; 33651da177e4SLinus Torvalds } 33661da177e4SLinus Torvalds 33671da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 33681da177e4SLinus Torvalds { 33698687b63aSAl Viro __be32 *p; 3370409924e4STrond Myklebust int ret = 0; 33711da177e4SLinus Torvalds 33721da177e4SLinus Torvalds *fileid = 0; 33731da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 33741da177e4SLinus Torvalds return -EIO; 33751da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3376c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3377c0eae66eSBenny Halevy if (unlikely(!p)) 3378c0eae66eSBenny Halevy goto out_overflow; 3379cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 33801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3381409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 33821da177e4SLinus Torvalds } 33833110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3384409924e4STrond Myklebust return ret; 3385c0eae66eSBenny Halevy out_overflow: 3386c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3387c0eae66eSBenny Halevy return -EIO; 33881da177e4SLinus Torvalds } 33891da177e4SLinus Torvalds 339099baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 339199baf625SManoj Naik { 33928687b63aSAl Viro __be32 *p; 3393409924e4STrond Myklebust int ret = 0; 339499baf625SManoj Naik 339599baf625SManoj Naik *fileid = 0; 339699baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 339799baf625SManoj Naik return -EIO; 339899baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3399c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3400c0eae66eSBenny Halevy if (unlikely(!p)) 3401c0eae66eSBenny Halevy goto out_overflow; 3402cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 340399baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 340428331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 340599baf625SManoj Naik } 34063110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3407409924e4STrond Myklebust return ret; 3408c0eae66eSBenny Halevy out_overflow: 3409c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3410c0eae66eSBenny Halevy return -EIO; 341199baf625SManoj Naik } 341299baf625SManoj Naik 34131da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34141da177e4SLinus Torvalds { 34158687b63aSAl Viro __be32 *p; 34161da177e4SLinus Torvalds int status = 0; 34171da177e4SLinus Torvalds 34181da177e4SLinus Torvalds *res = 0; 34191da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34201da177e4SLinus Torvalds return -EIO; 34211da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3422c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3423c0eae66eSBenny Halevy if (unlikely(!p)) 3424c0eae66eSBenny Halevy goto out_overflow; 3425cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34271da177e4SLinus Torvalds } 34283110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34291da177e4SLinus Torvalds return status; 3430c0eae66eSBenny Halevy out_overflow: 3431c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3432c0eae66eSBenny Halevy return -EIO; 34331da177e4SLinus Torvalds } 34341da177e4SLinus Torvalds 34351da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34361da177e4SLinus Torvalds { 34378687b63aSAl Viro __be32 *p; 34381da177e4SLinus Torvalds int status = 0; 34391da177e4SLinus Torvalds 34401da177e4SLinus Torvalds *res = 0; 34411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 34421da177e4SLinus Torvalds return -EIO; 34431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3444c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3445c0eae66eSBenny Halevy if (unlikely(!p)) 3446c0eae66eSBenny Halevy goto out_overflow; 3447cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34481da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 34491da177e4SLinus Torvalds } 34503110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 34511da177e4SLinus Torvalds return status; 3452c0eae66eSBenny Halevy out_overflow: 3453c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3454c0eae66eSBenny Halevy return -EIO; 34551da177e4SLinus Torvalds } 34561da177e4SLinus Torvalds 34571da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34581da177e4SLinus Torvalds { 34598687b63aSAl Viro __be32 *p; 34601da177e4SLinus Torvalds int status = 0; 34611da177e4SLinus Torvalds 34621da177e4SLinus Torvalds *res = 0; 34631da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 34641da177e4SLinus Torvalds return -EIO; 34651da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3466c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3467c0eae66eSBenny Halevy if (unlikely(!p)) 3468c0eae66eSBenny Halevy goto out_overflow; 3469cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 34711da177e4SLinus Torvalds } 34723110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 34731da177e4SLinus Torvalds return status; 3474c0eae66eSBenny Halevy out_overflow: 3475c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3476c0eae66eSBenny Halevy return -EIO; 34771da177e4SLinus Torvalds } 34781da177e4SLinus Torvalds 34797aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 34807aaa0b3bSManoj Naik { 3481464ad6b1SChuck Lever u32 n; 34828687b63aSAl Viro __be32 *p; 34837aaa0b3bSManoj Naik int status = 0; 34847aaa0b3bSManoj Naik 3485c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3486c0eae66eSBenny Halevy if (unlikely(!p)) 3487c0eae66eSBenny Halevy goto out_overflow; 3488cccddf4fSBenny Halevy n = be32_to_cpup(p); 348933a43f28SAndy Adamson if (n == 0) 349033a43f28SAndy Adamson goto root_path; 349102a2976cSChuck Lever dprintk("pathname4: "); 3492809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3493809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3494809b426cSTrond Myklebust goto out_eio; 3495809b426cSTrond Myklebust } 3496809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 34977aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 34987aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 34997aaa0b3bSManoj Naik if (unlikely(status != 0)) 35007aaa0b3bSManoj Naik goto out_eio; 350195a13f7bSTrond Myklebust ifdebug (XDR) 350202a2976cSChuck Lever pr_cont("%s%.*s ", 350302a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 350402a2976cSChuck Lever component->len, component->data); 35057aaa0b3bSManoj Naik } 35067aaa0b3bSManoj Naik out: 35077aaa0b3bSManoj Naik return status; 350833a43f28SAndy Adamson root_path: 350933a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 351033a43f28SAndy Adamson path->ncomponents = 1; 351133a43f28SAndy Adamson path->components[0].len=0; 351233a43f28SAndy Adamson path->components[0].data=NULL; 351302a2976cSChuck Lever dprintk("pathname4: /\n"); 351433a43f28SAndy Adamson goto out; 35157aaa0b3bSManoj Naik out_eio: 35167aaa0b3bSManoj Naik dprintk(" status %d", status); 35177aaa0b3bSManoj Naik status = -EIO; 35187aaa0b3bSManoj Naik goto out; 3519c0eae66eSBenny Halevy out_overflow: 3520c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3521c0eae66eSBenny Halevy return -EIO; 35227aaa0b3bSManoj Naik } 35237aaa0b3bSManoj Naik 35247aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3525683b57b4STrond Myklebust { 3526683b57b4STrond Myklebust int n; 35278687b63aSAl Viro __be32 *p; 3528683b57b4STrond Myklebust int status = -EIO; 3529683b57b4STrond Myklebust 3530683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3531683b57b4STrond Myklebust goto out; 3532683b57b4STrond Myklebust status = 0; 3533683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3534683b57b4STrond Myklebust goto out; 35358b7e3f49STrond Myklebust status = -EIO; 35368b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 35378b7e3f49STrond Myklebust if (unlikely(res == NULL)) 35388b7e3f49STrond Myklebust goto out; 353902a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 35407aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3541683b57b4STrond Myklebust if (unlikely(status != 0)) 3542683b57b4STrond Myklebust goto out; 3543c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3544c0eae66eSBenny Halevy if (unlikely(!p)) 3545c0eae66eSBenny Halevy goto out_overflow; 3546cccddf4fSBenny Halevy n = be32_to_cpup(p); 3547683b57b4STrond Myklebust if (n <= 0) 3548683b57b4STrond Myklebust goto out_eio; 3549809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3550464ad6b1SChuck Lever u32 m; 3551809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3552683b57b4STrond Myklebust 3553809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3554809b426cSTrond Myklebust break; 3555809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3556c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3557c0eae66eSBenny Halevy if (unlikely(!p)) 3558c0eae66eSBenny Halevy goto out_overflow; 3559cccddf4fSBenny Halevy m = be32_to_cpup(p); 35607aaa0b3bSManoj Naik 356102a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3562809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3563809b426cSTrond Myklebust struct nfs4_string *server; 3564809b426cSTrond Myklebust 3565809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3566464ad6b1SChuck Lever unsigned int i; 3567464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3568464ad6b1SChuck Lever "returned for location %u\n", 35693110ff80SHarvey Harrison __func__, 3570464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3571464ad6b1SChuck Lever m, res->nlocations); 35727aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 35732e42c3e2STrond Myklebust unsigned int len; 35747aaa0b3bSManoj Naik char *data; 35757aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3576683b57b4STrond Myklebust if (unlikely(status != 0)) 3577683b57b4STrond Myklebust goto out_eio; 35787aaa0b3bSManoj Naik } 3579809b426cSTrond Myklebust break; 35807aaa0b3bSManoj Naik } 3581809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3582809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3583809b426cSTrond Myklebust if (unlikely(status != 0)) 3584809b426cSTrond Myklebust goto out_eio; 3585809b426cSTrond Myklebust dprintk("%s ", server->data); 35867aaa0b3bSManoj Naik } 35877aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 35887aaa0b3bSManoj Naik if (unlikely(status != 0)) 35897aaa0b3bSManoj Naik goto out_eio; 3590683b57b4STrond Myklebust } 3591409924e4STrond Myklebust if (res->nlocations != 0) 359281934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3593683b57b4STrond Myklebust out: 35943110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3595683b57b4STrond Myklebust return status; 3596c0eae66eSBenny Halevy out_overflow: 3597c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3598683b57b4STrond Myklebust out_eio: 3599683b57b4STrond Myklebust status = -EIO; 3600683b57b4STrond Myklebust goto out; 3601683b57b4STrond Myklebust } 3602683b57b4STrond Myklebust 36031da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36041da177e4SLinus Torvalds { 36058687b63aSAl Viro __be32 *p; 36061da177e4SLinus Torvalds int status = 0; 36071da177e4SLinus Torvalds 36081da177e4SLinus Torvalds *res = 0; 36091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36101da177e4SLinus Torvalds return -EIO; 36111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3612c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3613c0eae66eSBenny Halevy if (unlikely(!p)) 3614c0eae66eSBenny Halevy goto out_overflow; 3615cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36171da177e4SLinus Torvalds } 36183110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36191da177e4SLinus Torvalds return status; 3620c0eae66eSBenny Halevy out_overflow: 3621c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3622c0eae66eSBenny Halevy return -EIO; 36231da177e4SLinus Torvalds } 36241da177e4SLinus Torvalds 36251da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36261da177e4SLinus Torvalds { 36278687b63aSAl Viro __be32 *p; 36281da177e4SLinus Torvalds int status = 0; 36291da177e4SLinus Torvalds 36301da177e4SLinus Torvalds *maxlink = 1; 36311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 36321da177e4SLinus Torvalds return -EIO; 36331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3634c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3635c0eae66eSBenny Halevy if (unlikely(!p)) 3636c0eae66eSBenny Halevy goto out_overflow; 3637cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 36381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 36391da177e4SLinus Torvalds } 36403110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 36411da177e4SLinus Torvalds return status; 3642c0eae66eSBenny Halevy out_overflow: 3643c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3644c0eae66eSBenny Halevy return -EIO; 36451da177e4SLinus Torvalds } 36461da177e4SLinus Torvalds 36471da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 36481da177e4SLinus Torvalds { 36498687b63aSAl Viro __be32 *p; 36501da177e4SLinus Torvalds int status = 0; 36511da177e4SLinus Torvalds 36521da177e4SLinus Torvalds *maxname = 1024; 36531da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 36541da177e4SLinus Torvalds return -EIO; 36551da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3656c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3657c0eae66eSBenny Halevy if (unlikely(!p)) 3658c0eae66eSBenny Halevy goto out_overflow; 3659cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 36601da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 36611da177e4SLinus Torvalds } 36623110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 36631da177e4SLinus Torvalds return status; 3664c0eae66eSBenny Halevy out_overflow: 3665c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3666c0eae66eSBenny Halevy return -EIO; 36671da177e4SLinus Torvalds } 36681da177e4SLinus Torvalds 36691da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36701da177e4SLinus Torvalds { 36718687b63aSAl Viro __be32 *p; 36721da177e4SLinus Torvalds int status = 0; 36731da177e4SLinus Torvalds 36741da177e4SLinus Torvalds *res = 1024; 36751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 36761da177e4SLinus Torvalds return -EIO; 36771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 36781da177e4SLinus Torvalds uint64_t maxread; 3679c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3680c0eae66eSBenny Halevy if (unlikely(!p)) 3681c0eae66eSBenny Halevy goto out_overflow; 3682cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 36831da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 36841da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 36851da177e4SLinus Torvalds *res = (uint32_t)maxread; 36861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 36871da177e4SLinus Torvalds } 36883110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 36891da177e4SLinus Torvalds return status; 3690c0eae66eSBenny Halevy out_overflow: 3691c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3692c0eae66eSBenny Halevy return -EIO; 36931da177e4SLinus Torvalds } 36941da177e4SLinus Torvalds 36951da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36961da177e4SLinus Torvalds { 36978687b63aSAl Viro __be32 *p; 36981da177e4SLinus Torvalds int status = 0; 36991da177e4SLinus Torvalds 37001da177e4SLinus Torvalds *res = 1024; 37011da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37021da177e4SLinus Torvalds return -EIO; 37031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37041da177e4SLinus Torvalds uint64_t maxwrite; 3705c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3706c0eae66eSBenny Halevy if (unlikely(!p)) 3707c0eae66eSBenny Halevy goto out_overflow; 3708cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37091da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37101da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37111da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37131da177e4SLinus Torvalds } 37143110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37151da177e4SLinus Torvalds return status; 3716c0eae66eSBenny Halevy out_overflow: 3717c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3718c0eae66eSBenny Halevy return -EIO; 37191da177e4SLinus Torvalds } 37201da177e4SLinus Torvalds 3721bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37221da177e4SLinus Torvalds { 3723bca79478STrond Myklebust uint32_t tmp; 37248687b63aSAl Viro __be32 *p; 3725409924e4STrond Myklebust int ret = 0; 37261da177e4SLinus Torvalds 37271da177e4SLinus Torvalds *mode = 0; 37281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 37291da177e4SLinus Torvalds return -EIO; 37301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3731c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3732c0eae66eSBenny Halevy if (unlikely(!p)) 3733c0eae66eSBenny Halevy goto out_overflow; 3734cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3735bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 37361da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3737409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 37381da177e4SLinus Torvalds } 37393110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3740409924e4STrond Myklebust return ret; 3741c0eae66eSBenny Halevy out_overflow: 3742c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3743c0eae66eSBenny Halevy return -EIO; 37441da177e4SLinus Torvalds } 37451da177e4SLinus Torvalds 37461da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 37471da177e4SLinus Torvalds { 37488687b63aSAl Viro __be32 *p; 3749409924e4STrond Myklebust int ret = 0; 37501da177e4SLinus Torvalds 37511da177e4SLinus Torvalds *nlink = 1; 37521da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 37531da177e4SLinus Torvalds return -EIO; 37541da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3755c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3756c0eae66eSBenny Halevy if (unlikely(!p)) 3757c0eae66eSBenny Halevy goto out_overflow; 3758cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 37591da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3760409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 37611da177e4SLinus Torvalds } 37623110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3763409924e4STrond Myklebust return ret; 3764c0eae66eSBenny Halevy out_overflow: 3765c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3766c0eae66eSBenny Halevy return -EIO; 37671da177e4SLinus Torvalds } 37681da177e4SLinus Torvalds 376980e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3770e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 37716926afd1STrond Myklebust struct nfs4_string *owner_name) 37721da177e4SLinus Torvalds { 37738687b63aSAl Viro uint32_t len; 37748687b63aSAl Viro __be32 *p; 3775409924e4STrond Myklebust int ret = 0; 37761da177e4SLinus Torvalds 3777e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 37781da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 37791da177e4SLinus Torvalds return -EIO; 37801da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3781c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3782c0eae66eSBenny Halevy if (unlikely(!p)) 3783c0eae66eSBenny Halevy goto out_overflow; 3784cccddf4fSBenny Halevy len = be32_to_cpup(p); 3785c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3786c0eae66eSBenny Halevy if (unlikely(!p)) 3787c0eae66eSBenny Halevy goto out_overflow; 37886926afd1STrond Myklebust if (owner_name != NULL) { 37896926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 37906926afd1STrond Myklebust if (owner_name->data != NULL) { 37916926afd1STrond Myklebust owner_name->len = len; 37926926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 37936926afd1STrond Myklebust } 379480e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3795e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3796409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3797409924e4STrond Myklebust else 37981da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 37993110ff80SHarvey Harrison __func__); 38001da177e4SLinus Torvalds } else 3801fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38023110ff80SHarvey Harrison __func__, len); 38031da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38041da177e4SLinus Torvalds } 3805e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3806409924e4STrond Myklebust return ret; 3807c0eae66eSBenny Halevy out_overflow: 3808c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3809c0eae66eSBenny Halevy return -EIO; 38101da177e4SLinus Torvalds } 38111da177e4SLinus Torvalds 381280e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3813e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 38146926afd1STrond Myklebust struct nfs4_string *group_name) 38151da177e4SLinus Torvalds { 38168687b63aSAl Viro uint32_t len; 38178687b63aSAl Viro __be32 *p; 3818409924e4STrond Myklebust int ret = 0; 38191da177e4SLinus Torvalds 3820e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 38211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38221da177e4SLinus Torvalds return -EIO; 38231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3824c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3825c0eae66eSBenny Halevy if (unlikely(!p)) 3826c0eae66eSBenny Halevy goto out_overflow; 3827cccddf4fSBenny Halevy len = be32_to_cpup(p); 3828c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3829c0eae66eSBenny Halevy if (unlikely(!p)) 3830c0eae66eSBenny Halevy goto out_overflow; 38316926afd1STrond Myklebust if (group_name != NULL) { 38326926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 38336926afd1STrond Myklebust if (group_name->data != NULL) { 38346926afd1STrond Myklebust group_name->len = len; 38356926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 38366926afd1STrond Myklebust } 383780e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3838e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3839409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3840409924e4STrond Myklebust else 38411da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 38423110ff80SHarvey Harrison __func__); 38431da177e4SLinus Torvalds } else 3844fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38453110ff80SHarvey Harrison __func__, len); 38461da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 38471da177e4SLinus Torvalds } 3848e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3849409924e4STrond Myklebust return ret; 3850c0eae66eSBenny Halevy out_overflow: 3851c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3852c0eae66eSBenny Halevy return -EIO; 38531da177e4SLinus Torvalds } 38541da177e4SLinus Torvalds 38551da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 38561da177e4SLinus Torvalds { 38578687b63aSAl Viro uint32_t major = 0, minor = 0; 38588687b63aSAl Viro __be32 *p; 3859409924e4STrond Myklebust int ret = 0; 38601da177e4SLinus Torvalds 38611da177e4SLinus Torvalds *rdev = MKDEV(0,0); 38621da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 38631da177e4SLinus Torvalds return -EIO; 38641da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 38651da177e4SLinus Torvalds dev_t tmp; 38661da177e4SLinus Torvalds 3867c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3868c0eae66eSBenny Halevy if (unlikely(!p)) 3869c0eae66eSBenny Halevy goto out_overflow; 38706f723f77SBenny Halevy major = be32_to_cpup(p++); 3871cccddf4fSBenny Halevy minor = be32_to_cpup(p); 38721da177e4SLinus Torvalds tmp = MKDEV(major, minor); 38731da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 38741da177e4SLinus Torvalds *rdev = tmp; 38751da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3876409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 38771da177e4SLinus Torvalds } 38783110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3879409924e4STrond Myklebust return ret; 3880c0eae66eSBenny Halevy out_overflow: 3881c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3882c0eae66eSBenny Halevy return -EIO; 38831da177e4SLinus Torvalds } 38841da177e4SLinus Torvalds 38851da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 38861da177e4SLinus Torvalds { 38878687b63aSAl Viro __be32 *p; 38881da177e4SLinus Torvalds int status = 0; 38891da177e4SLinus Torvalds 38901da177e4SLinus Torvalds *res = 0; 38911da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 38921da177e4SLinus Torvalds return -EIO; 38931da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3894c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3895c0eae66eSBenny Halevy if (unlikely(!p)) 3896c0eae66eSBenny Halevy goto out_overflow; 3897cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 38981da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 38991da177e4SLinus Torvalds } 39003110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39011da177e4SLinus Torvalds return status; 3902c0eae66eSBenny Halevy out_overflow: 3903c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3904c0eae66eSBenny Halevy return -EIO; 39051da177e4SLinus Torvalds } 39061da177e4SLinus Torvalds 39071da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39081da177e4SLinus Torvalds { 39098687b63aSAl Viro __be32 *p; 39101da177e4SLinus Torvalds int status = 0; 39111da177e4SLinus Torvalds 39121da177e4SLinus Torvalds *res = 0; 39131da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39141da177e4SLinus Torvalds return -EIO; 39151da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3916c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3917c0eae66eSBenny Halevy if (unlikely(!p)) 3918c0eae66eSBenny Halevy goto out_overflow; 3919cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39201da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39211da177e4SLinus Torvalds } 39223110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39231da177e4SLinus Torvalds return status; 3924c0eae66eSBenny Halevy out_overflow: 3925c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3926c0eae66eSBenny Halevy return -EIO; 39271da177e4SLinus Torvalds } 39281da177e4SLinus Torvalds 39291da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39301da177e4SLinus Torvalds { 39318687b63aSAl Viro __be32 *p; 39321da177e4SLinus Torvalds int status = 0; 39331da177e4SLinus Torvalds 39341da177e4SLinus Torvalds *res = 0; 39351da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 39361da177e4SLinus Torvalds return -EIO; 39371da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3938c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3939c0eae66eSBenny Halevy if (unlikely(!p)) 3940c0eae66eSBenny Halevy goto out_overflow; 3941cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39421da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 39431da177e4SLinus Torvalds } 39443110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 39451da177e4SLinus Torvalds return status; 3946c0eae66eSBenny Halevy out_overflow: 3947c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3948c0eae66eSBenny Halevy return -EIO; 39491da177e4SLinus Torvalds } 39501da177e4SLinus Torvalds 39511da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 39521da177e4SLinus Torvalds { 39538687b63aSAl Viro __be32 *p; 3954409924e4STrond Myklebust int ret = 0; 39551da177e4SLinus Torvalds 39561da177e4SLinus Torvalds *used = 0; 39571da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 39581da177e4SLinus Torvalds return -EIO; 39591da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3960c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3961c0eae66eSBenny Halevy if (unlikely(!p)) 3962c0eae66eSBenny Halevy goto out_overflow; 3963cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 39641da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3965409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 39661da177e4SLinus Torvalds } 39673110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 39681da177e4SLinus Torvalds (unsigned long long)*used); 3969409924e4STrond Myklebust return ret; 3970c0eae66eSBenny Halevy out_overflow: 3971c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3972c0eae66eSBenny Halevy return -EIO; 39731da177e4SLinus Torvalds } 39741da177e4SLinus Torvalds 39751da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 39761da177e4SLinus Torvalds { 39778687b63aSAl Viro __be32 *p; 39781da177e4SLinus Torvalds uint64_t sec; 39791da177e4SLinus Torvalds uint32_t nsec; 39801da177e4SLinus Torvalds 3981c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3982c0eae66eSBenny Halevy if (unlikely(!p)) 3983c0eae66eSBenny Halevy goto out_overflow; 39843ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3985cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 39861da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 39871da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 39881da177e4SLinus Torvalds return 0; 3989c0eae66eSBenny Halevy out_overflow: 3990c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3991c0eae66eSBenny Halevy return -EIO; 39921da177e4SLinus Torvalds } 39931da177e4SLinus Torvalds 39941da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 39951da177e4SLinus Torvalds { 39961da177e4SLinus Torvalds int status = 0; 39971da177e4SLinus Torvalds 39981da177e4SLinus Torvalds time->tv_sec = 0; 39991da177e4SLinus Torvalds time->tv_nsec = 0; 40001da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40011da177e4SLinus Torvalds return -EIO; 40021da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40031da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4004409924e4STrond Myklebust if (status == 0) 4005409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40061da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40071da177e4SLinus Torvalds } 40083110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40091da177e4SLinus Torvalds return status; 40101da177e4SLinus Torvalds } 40111da177e4SLinus Torvalds 40121da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40131da177e4SLinus Torvalds { 40141da177e4SLinus Torvalds int status = 0; 40151da177e4SLinus Torvalds 40161da177e4SLinus Torvalds time->tv_sec = 0; 40171da177e4SLinus Torvalds time->tv_nsec = 0; 40181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40191da177e4SLinus Torvalds return -EIO; 40201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40211da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4022409924e4STrond Myklebust if (status == 0) 4023409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40241da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40251da177e4SLinus Torvalds } 40263110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40271da177e4SLinus Torvalds return status; 40281da177e4SLinus Torvalds } 40291da177e4SLinus Torvalds 403055b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 403155b6e774SRicardo Labiaga struct timespec *time) 403255b6e774SRicardo Labiaga { 403355b6e774SRicardo Labiaga int status = 0; 403455b6e774SRicardo Labiaga 403555b6e774SRicardo Labiaga time->tv_sec = 0; 403655b6e774SRicardo Labiaga time->tv_nsec = 0; 403755b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 403855b6e774SRicardo Labiaga return -EIO; 403955b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 404055b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 404155b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 404255b6e774SRicardo Labiaga } 404355b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 404455b6e774SRicardo Labiaga (long)time->tv_nsec); 404555b6e774SRicardo Labiaga return status; 404655b6e774SRicardo Labiaga } 404755b6e774SRicardo Labiaga 40481da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40491da177e4SLinus Torvalds { 40501da177e4SLinus Torvalds int status = 0; 40511da177e4SLinus Torvalds 40521da177e4SLinus Torvalds time->tv_sec = 0; 40531da177e4SLinus Torvalds time->tv_nsec = 0; 40541da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 40551da177e4SLinus Torvalds return -EIO; 40561da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 40571da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4058409924e4STrond Myklebust if (status == 0) 4059409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 40601da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 40611da177e4SLinus Torvalds } 40623110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 40631da177e4SLinus Torvalds return status; 40641da177e4SLinus Torvalds } 40651da177e4SLinus Torvalds 4066256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 40671da177e4SLinus Torvalds { 40681da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4069256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 40701da177e4SLinus Torvalds 40711da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4072fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4073fe82a183SChuck Lever "%u %c %u\n", 40743110ff80SHarvey Harrison __func__, 40751da177e4SLinus Torvalds attrwords << 2, 40761da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 40771da177e4SLinus Torvalds nwords << 2); 40781da177e4SLinus Torvalds return -EIO; 40791da177e4SLinus Torvalds } 40801da177e4SLinus Torvalds return 0; 40811da177e4SLinus Torvalds } 40821da177e4SLinus Torvalds 40831da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40841da177e4SLinus Torvalds { 40858687b63aSAl Viro __be32 *p; 40861da177e4SLinus Torvalds 4087c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4088c0eae66eSBenny Halevy if (unlikely(!p)) 4089c0eae66eSBenny Halevy goto out_overflow; 40906f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 40913ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4092cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 40931da177e4SLinus Torvalds return 0; 4094c0eae66eSBenny Halevy out_overflow: 4095c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4096c0eae66eSBenny Halevy return -EIO; 40971da177e4SLinus Torvalds } 40981da177e4SLinus Torvalds 40996168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 41001da177e4SLinus Torvalds { 41018687b63aSAl Viro __be32 *p; 41021da177e4SLinus Torvalds uint32_t supp, acc; 41031da177e4SLinus Torvalds int status; 41041da177e4SLinus Torvalds 41051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41061da177e4SLinus Torvalds if (status) 41071da177e4SLinus Torvalds return status; 4108c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4109c0eae66eSBenny Halevy if (unlikely(!p)) 4110c0eae66eSBenny Halevy goto out_overflow; 41116f723f77SBenny Halevy supp = be32_to_cpup(p++); 4112cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41136168f62cSWeston Andros Adamson *supported = supp; 41146168f62cSWeston Andros Adamson *access = acc; 41151da177e4SLinus Torvalds return 0; 4116c0eae66eSBenny Halevy out_overflow: 4117c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4118c0eae66eSBenny Halevy return -EIO; 41191da177e4SLinus Torvalds } 41201da177e4SLinus Torvalds 412107d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41221da177e4SLinus Torvalds { 41238687b63aSAl Viro __be32 *p; 412407d30434SBenny Halevy 412507d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 412607d30434SBenny Halevy if (likely(p)) { 412707d30434SBenny Halevy memcpy(buf, p, len); 412807d30434SBenny Halevy return 0; 412907d30434SBenny Halevy } 413007d30434SBenny Halevy print_overflow_msg(__func__, xdr); 413107d30434SBenny Halevy return -EIO; 413207d30434SBenny Halevy } 413307d30434SBenny Halevy 413407d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 413507d30434SBenny Halevy { 41362d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 41371da177e4SLinus Torvalds } 41381da177e4SLinus Torvalds 41391da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 41401da177e4SLinus Torvalds { 41411da177e4SLinus Torvalds int status; 41421da177e4SLinus Torvalds 41431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4144c1d51931STrond Myklebust if (status != -EIO) 4145c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 414607d30434SBenny Halevy if (!status) 414707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41481da177e4SLinus Torvalds return status; 41491da177e4SLinus Torvalds } 41501da177e4SLinus Torvalds 4151db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4152db942bbdSBenny Halevy { 4153cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 41541da177e4SLinus Torvalds } 41551da177e4SLinus Torvalds 41562f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 41572f2c63bcSTrond Myklebust { 41582f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 41592f2c63bcSTrond Myklebust } 41602f2c63bcSTrond Myklebust 41610b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 41621da177e4SLinus Torvalds { 41631da177e4SLinus Torvalds int status; 41641da177e4SLinus Torvalds 41651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4166db942bbdSBenny Halevy if (!status) 41672f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 41681da177e4SLinus Torvalds return status; 41691da177e4SLinus Torvalds } 41701da177e4SLinus Torvalds 41711da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41721da177e4SLinus Torvalds { 41738687b63aSAl Viro __be32 *p; 41741da177e4SLinus Torvalds uint32_t bmlen; 41751da177e4SLinus Torvalds int status; 41761da177e4SLinus Torvalds 41771da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 41781da177e4SLinus Torvalds if (status) 41791da177e4SLinus Torvalds return status; 41801da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 41811da177e4SLinus Torvalds return status; 4182c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4183c0eae66eSBenny Halevy if (unlikely(!p)) 4184c0eae66eSBenny Halevy goto out_overflow; 4185cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4186c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4187c0eae66eSBenny Halevy if (likely(p)) 41881da177e4SLinus Torvalds return 0; 4189c0eae66eSBenny Halevy out_overflow: 4190c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4191c0eae66eSBenny Halevy return -EIO; 41921da177e4SLinus Torvalds } 41931da177e4SLinus Torvalds 41941da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 41951da177e4SLinus Torvalds { 4196256e48bbSTrond Myklebust unsigned int savep; 4197dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 41981da177e4SLinus Torvalds int status; 41991da177e4SLinus Torvalds 42001da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42011da177e4SLinus Torvalds goto xdr_error; 42021da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42031da177e4SLinus Torvalds goto xdr_error; 42041da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42051da177e4SLinus Torvalds goto xdr_error; 42061da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42071da177e4SLinus Torvalds goto xdr_error; 4208264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4209264e6351SChuck Lever &res->fh_expire_type)) != 0) 4210264e6351SChuck Lever goto xdr_error; 42111da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42121da177e4SLinus Torvalds goto xdr_error; 42131da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42141da177e4SLinus Torvalds goto xdr_error; 42151da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42161da177e4SLinus Torvalds goto xdr_error; 42171da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42181da177e4SLinus Torvalds xdr_error: 42193110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42201da177e4SLinus Torvalds return status; 42211da177e4SLinus Torvalds } 42221da177e4SLinus Torvalds 42231da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42241da177e4SLinus Torvalds { 4225256e48bbSTrond Myklebust unsigned int savep; 4226dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42271da177e4SLinus Torvalds int status; 42281da177e4SLinus Torvalds 42291da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42301da177e4SLinus Torvalds goto xdr_error; 42311da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42321da177e4SLinus Torvalds goto xdr_error; 42331da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42341da177e4SLinus Torvalds goto xdr_error; 42351da177e4SLinus Torvalds 42361da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 42371da177e4SLinus Torvalds goto xdr_error; 42381da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 42391da177e4SLinus Torvalds goto xdr_error; 42401da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 42411da177e4SLinus Torvalds goto xdr_error; 42421da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 42431da177e4SLinus Torvalds goto xdr_error; 42441da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 42451da177e4SLinus Torvalds goto xdr_error; 42461da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 42471da177e4SLinus Torvalds goto xdr_error; 42481da177e4SLinus Torvalds 42491da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42501da177e4SLinus Torvalds xdr_error: 42513110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42521da177e4SLinus Torvalds return status; 42531da177e4SLinus Torvalds } 42541da177e4SLinus Torvalds 42551da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 42561da177e4SLinus Torvalds { 4257256e48bbSTrond Myklebust unsigned int savep; 4258dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42591da177e4SLinus Torvalds int status; 42601da177e4SLinus Torvalds 42611da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42621da177e4SLinus Torvalds goto xdr_error; 42631da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42641da177e4SLinus Torvalds goto xdr_error; 42651da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42661da177e4SLinus Torvalds goto xdr_error; 42671da177e4SLinus Torvalds 42681da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 42691da177e4SLinus Torvalds goto xdr_error; 42701da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 42711da177e4SLinus Torvalds goto xdr_error; 42721da177e4SLinus Torvalds 42731da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42741da177e4SLinus Torvalds xdr_error: 42753110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42761da177e4SLinus Torvalds return status; 42771da177e4SLinus Torvalds } 42781da177e4SLinus Torvalds 427988034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 428088034c3dSAndy Adamson uint32_t *bitmap, 428188034c3dSAndy Adamson uint64_t *res, 428288034c3dSAndy Adamson uint32_t hint_bit) 428388034c3dSAndy Adamson { 428488034c3dSAndy Adamson __be32 *p; 428588034c3dSAndy Adamson 428688034c3dSAndy Adamson *res = 0; 428788034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 428888034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 428988034c3dSAndy Adamson if (unlikely(!p)) 429088034c3dSAndy Adamson goto out_overflow; 429188034c3dSAndy Adamson xdr_decode_hyper(p, res); 429288034c3dSAndy Adamson } 429388034c3dSAndy Adamson return 0; 429488034c3dSAndy Adamson out_overflow: 429588034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 429688034c3dSAndy Adamson return -EIO; 429788034c3dSAndy Adamson } 429888034c3dSAndy Adamson 429988034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 430088034c3dSAndy Adamson struct nfs4_threshold *res) 430188034c3dSAndy Adamson { 4302256e48bbSTrond Myklebust __be32 *p; 4303256e48bbSTrond Myklebust unsigned int savep; 430488034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 430588034c3dSAndy Adamson int status; 430688034c3dSAndy Adamson 430788034c3dSAndy Adamson /* layout type */ 430888034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 430988034c3dSAndy Adamson if (unlikely(!p)) { 431088034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 431188034c3dSAndy Adamson return -EIO; 431288034c3dSAndy Adamson } 431388034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 431488034c3dSAndy Adamson 431588034c3dSAndy Adamson /* thi_hintset bitmap */ 431688034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 431788034c3dSAndy Adamson if (status < 0) 431888034c3dSAndy Adamson goto xdr_error; 431988034c3dSAndy Adamson 432088034c3dSAndy Adamson /* thi_hintlist length */ 432188034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 432288034c3dSAndy Adamson if (status < 0) 432388034c3dSAndy Adamson goto xdr_error; 432488034c3dSAndy Adamson /* thi_hintlist */ 432588034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 432688034c3dSAndy Adamson if (status < 0) 432788034c3dSAndy Adamson goto xdr_error; 432888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 432988034c3dSAndy Adamson if (status < 0) 433088034c3dSAndy Adamson goto xdr_error; 433188034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 433288034c3dSAndy Adamson THRESHOLD_RD_IO); 433388034c3dSAndy Adamson if (status < 0) 433488034c3dSAndy Adamson goto xdr_error; 433588034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 433688034c3dSAndy Adamson THRESHOLD_WR_IO); 433788034c3dSAndy Adamson if (status < 0) 433888034c3dSAndy Adamson goto xdr_error; 433988034c3dSAndy Adamson 434088034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 434188034c3dSAndy Adamson res->bm = bitmap[0]; 434288034c3dSAndy Adamson 434388034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 434488034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 434588034c3dSAndy Adamson res->wr_io_sz); 434688034c3dSAndy Adamson xdr_error: 434788034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 434888034c3dSAndy Adamson return status; 434988034c3dSAndy Adamson } 435088034c3dSAndy Adamson 435188034c3dSAndy Adamson /* 435288034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 435388034c3dSAndy Adamson */ 435488034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 435588034c3dSAndy Adamson uint32_t *bitmap, 435688034c3dSAndy Adamson struct nfs4_threshold *res) 435788034c3dSAndy Adamson { 435888034c3dSAndy Adamson __be32 *p; 435988034c3dSAndy Adamson int status = 0; 436088034c3dSAndy Adamson uint32_t num; 436188034c3dSAndy Adamson 436288034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 436388034c3dSAndy Adamson return -EIO; 4364029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 43651549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 43661549210fSTrond Myklebust if (unlikely(res == NULL)) 43671549210fSTrond Myklebust return -EREMOTEIO; 436888034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 436988034c3dSAndy Adamson if (unlikely(!p)) 437088034c3dSAndy Adamson goto out_overflow; 437188034c3dSAndy Adamson num = be32_to_cpup(p); 437288034c3dSAndy Adamson if (num == 0) 437388034c3dSAndy Adamson return 0; 437488034c3dSAndy Adamson if (num > 1) 437588034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 437688034c3dSAndy Adamson "drivers per filesystem not supported\n", 437788034c3dSAndy Adamson __func__); 437888034c3dSAndy Adamson 437988034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4380029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 438188034c3dSAndy Adamson } 438288034c3dSAndy Adamson return status; 438388034c3dSAndy Adamson out_overflow: 438488034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 438588034c3dSAndy Adamson return -EIO; 438688034c3dSAndy Adamson } 438788034c3dSAndy Adamson 4388ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4389ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 43908b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 43916926afd1STrond Myklebust const struct nfs_server *server) 43921da177e4SLinus Torvalds { 4393bca79478STrond Myklebust int status; 4394bca79478STrond Myklebust umode_t fmode = 0; 4395ae42c70aSBryan Schumaker uint32_t type; 4396ee7b75fcSTrond Myklebust int32_t err; 43971da177e4SLinus Torvalds 4398f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4399f26c7a78STrond Myklebust if (status < 0) 44001da177e4SLinus Torvalds goto xdr_error; 4401409924e4STrond Myklebust fattr->mode = 0; 4402409924e4STrond Myklebust if (status != 0) { 4403409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4404409924e4STrond Myklebust fattr->valid |= status; 4405409924e4STrond Myklebust } 44061da177e4SLinus Torvalds 4407f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4408f26c7a78STrond Myklebust if (status < 0) 44091da177e4SLinus Torvalds goto xdr_error; 4410409924e4STrond Myklebust fattr->valid |= status; 4411f26c7a78STrond Myklebust 4412f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4413f26c7a78STrond Myklebust if (status < 0) 44141da177e4SLinus Torvalds goto xdr_error; 4415409924e4STrond Myklebust fattr->valid |= status; 4416f26c7a78STrond Myklebust 4417f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4418f26c7a78STrond Myklebust if (status < 0) 44191da177e4SLinus Torvalds goto xdr_error; 4420409924e4STrond Myklebust fattr->valid |= status; 4421f26c7a78STrond Myklebust 4422ee7b75fcSTrond Myklebust err = 0; 4423ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4424ae42c70aSBryan Schumaker if (status < 0) 4425ae42c70aSBryan Schumaker goto xdr_error; 4426ae42c70aSBryan Schumaker 4427ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4428ae42c70aSBryan Schumaker if (status < 0) 4429ae42c70aSBryan Schumaker goto xdr_error; 4430ae42c70aSBryan Schumaker 4431f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4432f26c7a78STrond Myklebust if (status < 0) 44331da177e4SLinus Torvalds goto xdr_error; 4434409924e4STrond Myklebust fattr->valid |= status; 4435f26c7a78STrond Myklebust 44368b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4437f26c7a78STrond Myklebust if (status < 0) 4438683b57b4STrond Myklebust goto xdr_error; 4439409924e4STrond Myklebust fattr->valid |= status; 4440f26c7a78STrond Myklebust 4441f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4442f26c7a78STrond Myklebust if (status < 0) 44431da177e4SLinus Torvalds goto xdr_error; 4444409924e4STrond Myklebust if (status != 0) { 44451da177e4SLinus Torvalds fattr->mode |= fmode; 4446409924e4STrond Myklebust fattr->valid |= status; 4447409924e4STrond Myklebust } 4448f26c7a78STrond Myklebust 4449f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4450f26c7a78STrond Myklebust if (status < 0) 44511da177e4SLinus Torvalds goto xdr_error; 4452409924e4STrond Myklebust fattr->valid |= status; 4453f26c7a78STrond Myklebust 44546926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4455f26c7a78STrond Myklebust if (status < 0) 44561da177e4SLinus Torvalds goto xdr_error; 4457409924e4STrond Myklebust fattr->valid |= status; 4458f26c7a78STrond Myklebust 44596926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4460f26c7a78STrond Myklebust if (status < 0) 44611da177e4SLinus Torvalds goto xdr_error; 4462409924e4STrond Myklebust fattr->valid |= status; 4463f26c7a78STrond Myklebust 4464f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4465f26c7a78STrond Myklebust if (status < 0) 44661da177e4SLinus Torvalds goto xdr_error; 4467409924e4STrond Myklebust fattr->valid |= status; 4468f26c7a78STrond Myklebust 4469f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4470f26c7a78STrond Myklebust if (status < 0) 44711da177e4SLinus Torvalds goto xdr_error; 4472409924e4STrond Myklebust fattr->valid |= status; 4473f26c7a78STrond Myklebust 4474f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4475f26c7a78STrond Myklebust if (status < 0) 44761da177e4SLinus Torvalds goto xdr_error; 4477409924e4STrond Myklebust fattr->valid |= status; 4478f26c7a78STrond Myklebust 4479f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4480f26c7a78STrond Myklebust if (status < 0) 44811da177e4SLinus Torvalds goto xdr_error; 4482409924e4STrond Myklebust fattr->valid |= status; 4483f26c7a78STrond Myklebust 4484f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4485f26c7a78STrond Myklebust if (status < 0) 44861da177e4SLinus Torvalds goto xdr_error; 4487409924e4STrond Myklebust fattr->valid |= status; 4488f26c7a78STrond Myklebust 448928331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4490f26c7a78STrond Myklebust if (status < 0) 449199baf625SManoj Naik goto xdr_error; 4492409924e4STrond Myklebust fattr->valid |= status; 4493f26c7a78STrond Myklebust 449488034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 449588034c3dSAndy Adamson if (status < 0) 449688034c3dSAndy Adamson goto xdr_error; 449788034c3dSAndy Adamson 4498ae42c70aSBryan Schumaker xdr_error: 4499ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4500ae42c70aSBryan Schumaker return status; 4501ae42c70aSBryan Schumaker } 4502ae42c70aSBryan Schumaker 4503ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45048b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 45058b7e3f49STrond Myklebust const struct nfs_server *server) 4506ae42c70aSBryan Schumaker { 4507256e48bbSTrond Myklebust unsigned int savep; 4508ae42c70aSBryan Schumaker uint32_t attrlen, 4509dae100c2SFred Isaman bitmap[3] = {0}; 4510ae42c70aSBryan Schumaker int status; 4511ae42c70aSBryan Schumaker 4512ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4513ae42c70aSBryan Schumaker if (status < 0) 4514ae42c70aSBryan Schumaker goto xdr_error; 4515ae42c70aSBryan Schumaker 4516ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4517ae42c70aSBryan Schumaker if (status < 0) 4518ae42c70aSBryan Schumaker goto xdr_error; 4519ae42c70aSBryan Schumaker 4520ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4521ae42c70aSBryan Schumaker if (status < 0) 4522ae42c70aSBryan Schumaker goto xdr_error; 4523ae42c70aSBryan Schumaker 45248b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4525ae42c70aSBryan Schumaker if (status < 0) 4526ae42c70aSBryan Schumaker goto xdr_error; 4527ae42c70aSBryan Schumaker 4528f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 45291da177e4SLinus Torvalds xdr_error: 45303110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 45311da177e4SLinus Torvalds return status; 45321da177e4SLinus Torvalds } 45331da177e4SLinus Torvalds 4534ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45356926afd1STrond Myklebust const struct nfs_server *server) 4536ae42c70aSBryan Schumaker { 45378b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4538ae42c70aSBryan Schumaker } 45391da177e4SLinus Torvalds 4540504913fbSAndy Adamson /* 4541504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4542504913fbSAndy Adamson * one layout driver per file system. 4543504913fbSAndy Adamson */ 4544504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4545504913fbSAndy Adamson uint32_t *layouttype) 4546504913fbSAndy Adamson { 4547504913fbSAndy Adamson uint32_t *p; 4548504913fbSAndy Adamson int num; 4549504913fbSAndy Adamson 4550504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4551504913fbSAndy Adamson if (unlikely(!p)) 4552504913fbSAndy Adamson goto out_overflow; 4553504913fbSAndy Adamson num = be32_to_cpup(p); 4554504913fbSAndy Adamson 4555504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4556504913fbSAndy Adamson if (num == 0) { 4557504913fbSAndy Adamson *layouttype = 0; 4558504913fbSAndy Adamson return 0; 4559504913fbSAndy Adamson } 4560504913fbSAndy Adamson if (num > 1) 4561a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4562a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4563504913fbSAndy Adamson 4564504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4565504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4566504913fbSAndy Adamson if (unlikely(!p)) 4567504913fbSAndy Adamson goto out_overflow; 4568504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4569504913fbSAndy Adamson return 0; 4570504913fbSAndy Adamson out_overflow: 4571504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4572504913fbSAndy Adamson return -EIO; 4573504913fbSAndy Adamson } 4574504913fbSAndy Adamson 4575504913fbSAndy Adamson /* 4576504913fbSAndy Adamson * The type of file system exported. 4577504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4578504913fbSAndy Adamson */ 4579504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4580504913fbSAndy Adamson uint32_t *layouttype) 4581504913fbSAndy Adamson { 4582504913fbSAndy Adamson int status = 0; 4583504913fbSAndy Adamson 4584504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4585504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4586504913fbSAndy Adamson return -EIO; 4587504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4588504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4589504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4590504913fbSAndy Adamson } else 4591504913fbSAndy Adamson *layouttype = 0; 4592504913fbSAndy Adamson return status; 4593504913fbSAndy Adamson } 4594504913fbSAndy Adamson 4595dae100c2SFred Isaman /* 4596dae100c2SFred Isaman * The prefered block size for layout directed io 4597dae100c2SFred Isaman */ 4598dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4599dae100c2SFred Isaman uint32_t *res) 4600dae100c2SFred Isaman { 4601dae100c2SFred Isaman __be32 *p; 4602dae100c2SFred Isaman 4603dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4604dae100c2SFred Isaman *res = 0; 4605dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4606dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4607dae100c2SFred Isaman if (unlikely(!p)) { 4608dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4609dae100c2SFred Isaman return -EIO; 4610dae100c2SFred Isaman } 4611dae100c2SFred Isaman *res = be32_to_cpup(p); 4612dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4613dae100c2SFred Isaman } 4614dae100c2SFred Isaman return 0; 4615dae100c2SFred Isaman } 4616dae100c2SFred Isaman 46171da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 46181da177e4SLinus Torvalds { 4619256e48bbSTrond Myklebust unsigned int savep; 4620dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 46211da177e4SLinus Torvalds int status; 46221da177e4SLinus Torvalds 46231da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 46241da177e4SLinus Torvalds goto xdr_error; 46251da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 46261da177e4SLinus Torvalds goto xdr_error; 46271da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 46281da177e4SLinus Torvalds goto xdr_error; 46291da177e4SLinus Torvalds 46301da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 46311da177e4SLinus Torvalds 46321da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 46331da177e4SLinus Torvalds goto xdr_error; 46341da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 46351da177e4SLinus Torvalds goto xdr_error; 46361da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 46371da177e4SLinus Torvalds goto xdr_error; 46381da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 46391da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 46401da177e4SLinus Torvalds goto xdr_error; 46411da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 464255b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 464355b6e774SRicardo Labiaga if (status != 0) 464455b6e774SRicardo Labiaga goto xdr_error; 4645504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4646504913fbSAndy Adamson if (status != 0) 4647504913fbSAndy Adamson goto xdr_error; 4648dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4649dae100c2SFred Isaman if (status) 4650dae100c2SFred Isaman goto xdr_error; 46511da177e4SLinus Torvalds 46521da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46531da177e4SLinus Torvalds xdr_error: 46543110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46551da177e4SLinus Torvalds return status; 46561da177e4SLinus Torvalds } 46571da177e4SLinus Torvalds 46581da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46591da177e4SLinus Torvalds { 46608687b63aSAl Viro __be32 *p; 46611da177e4SLinus Torvalds uint32_t len; 46621da177e4SLinus Torvalds int status; 46631da177e4SLinus Torvalds 46649936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46659936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46669936781dSTrond Myklebust 46671da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46681da177e4SLinus Torvalds if (status) 46691da177e4SLinus Torvalds return status; 46701da177e4SLinus Torvalds 4671c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4672c0eae66eSBenny Halevy if (unlikely(!p)) 4673c0eae66eSBenny Halevy goto out_overflow; 4674cccddf4fSBenny Halevy len = be32_to_cpup(p); 46751da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46761da177e4SLinus Torvalds return -EIO; 46771da177e4SLinus Torvalds fh->size = len; 4678c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4679c0eae66eSBenny Halevy if (unlikely(!p)) 4680c0eae66eSBenny Halevy goto out_overflow; 468199398d06SBenny Halevy memcpy(fh->data, p, len); 46821da177e4SLinus Torvalds return 0; 4683c0eae66eSBenny Halevy out_overflow: 4684c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4685c0eae66eSBenny Halevy return -EIO; 46861da177e4SLinus Torvalds } 46871da177e4SLinus Torvalds 46881da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 46891da177e4SLinus Torvalds { 46901da177e4SLinus Torvalds int status; 46911da177e4SLinus Torvalds 46921da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 46931da177e4SLinus Torvalds if (status) 46941da177e4SLinus Torvalds return status; 46951da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 46961da177e4SLinus Torvalds } 46971da177e4SLinus Torvalds 46981da177e4SLinus Torvalds /* 46991da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 47001da177e4SLinus Torvalds */ 4701911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 47021da177e4SLinus Torvalds { 4703911d1aafSTrond Myklebust uint64_t offset, length, clientid; 47048687b63aSAl Viro __be32 *p; 4705911d1aafSTrond Myklebust uint32_t namelen, type; 47061da177e4SLinus Torvalds 4707babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4708c0eae66eSBenny Halevy if (unlikely(!p)) 4709c0eae66eSBenny Halevy goto out_overflow; 4710babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 47113ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4712babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4713babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4714911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4715911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4716911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4717911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4718911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4719911d1aafSTrond Myklebust if (type & 1) 4720911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4721911d1aafSTrond Myklebust fl->fl_pid = 0; 4722911d1aafSTrond Myklebust } 4723babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4724babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4725babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4726c0eae66eSBenny Halevy if (likely(p)) 47271da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4728c0eae66eSBenny Halevy out_overflow: 4729c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4730c0eae66eSBenny Halevy return -EIO; 47311da177e4SLinus Torvalds } 47321da177e4SLinus Torvalds 4733911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 47341da177e4SLinus Torvalds { 47351da177e4SLinus Torvalds int status; 47361da177e4SLinus Torvalds 47371da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4738c1d51931STrond Myklebust if (status == -EIO) 4739c1d51931STrond Myklebust goto out; 47401da177e4SLinus Torvalds if (status == 0) { 474107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 474207d30434SBenny Halevy if (unlikely(status)) 474307d30434SBenny Halevy goto out; 47441da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4745c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4746c1d51931STrond Myklebust if (res->open_seqid != NULL) 4747c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4748c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4749c1d51931STrond Myklebust out: 47501da177e4SLinus Torvalds return status; 47511da177e4SLinus Torvalds } 47521da177e4SLinus Torvalds 4753911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47541da177e4SLinus Torvalds { 47551da177e4SLinus Torvalds int status; 47561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47571da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4758911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47591da177e4SLinus Torvalds return status; 47601da177e4SLinus Torvalds } 47611da177e4SLinus Torvalds 4762911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47631da177e4SLinus Torvalds { 47641da177e4SLinus Torvalds int status; 47651da177e4SLinus Torvalds 47661da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4767c1d51931STrond Myklebust if (status != -EIO) 4768c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 476907d30434SBenny Halevy if (status == 0) 477007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47711da177e4SLinus Torvalds return status; 47721da177e4SLinus Torvalds } 47731da177e4SLinus Torvalds 4774d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4775d3c7b7ccSTrond Myklebust { 4776d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4777d3c7b7ccSTrond Myklebust } 4778d3c7b7ccSTrond Myklebust 47791da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47801da177e4SLinus Torvalds { 47811da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47821da177e4SLinus Torvalds } 47831da177e4SLinus Torvalds 47841da177e4SLinus Torvalds /* This is too sick! */ 47851da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47861da177e4SLinus Torvalds { 47878687b63aSAl Viro __be32 *p; 47881da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 47891da177e4SLinus Torvalds 4790c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4791c0eae66eSBenny Halevy if (unlikely(!p)) 4792c0eae66eSBenny Halevy goto out_overflow; 47936f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 47941da177e4SLinus Torvalds switch (limit_type) { 47951da177e4SLinus Torvalds case 1: 4796cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 47971da177e4SLinus Torvalds break; 47981da177e4SLinus Torvalds case 2: 47996f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4800cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 48011da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 48021da177e4SLinus Torvalds } 48031da177e4SLinus Torvalds return 0; 4804c0eae66eSBenny Halevy out_overflow: 4805c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4806c0eae66eSBenny Halevy return -EIO; 48071da177e4SLinus Torvalds } 48081da177e4SLinus Torvalds 48091da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 48101da177e4SLinus Torvalds { 48118687b63aSAl Viro __be32 *p; 48121da177e4SLinus Torvalds uint32_t delegation_type; 481307d30434SBenny Halevy int status; 48141da177e4SLinus Torvalds 4815c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4816c0eae66eSBenny Halevy if (unlikely(!p)) 4817c0eae66eSBenny Halevy goto out_overflow; 4818cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 48191da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 48201da177e4SLinus Torvalds res->delegation_type = 0; 48211da177e4SLinus Torvalds return 0; 48221da177e4SLinus Torvalds } 482307d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 482407d30434SBenny Halevy if (unlikely(status)) 482507d30434SBenny Halevy return status; 4826c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4827c0eae66eSBenny Halevy if (unlikely(!p)) 4828c0eae66eSBenny Halevy goto out_overflow; 4829cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 483005d564feSAndy Adamson 48311da177e4SLinus Torvalds switch (delegation_type) { 48321da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 48331da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 48341da177e4SLinus Torvalds break; 48351da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 48361da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 48371da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 48381da177e4SLinus Torvalds return -EIO; 48391da177e4SLinus Torvalds } 48407539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4841c0eae66eSBenny Halevy out_overflow: 4842c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4843c0eae66eSBenny Halevy return -EIO; 48441da177e4SLinus Torvalds } 48451da177e4SLinus Torvalds 48461da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 48471da177e4SLinus Torvalds { 48488687b63aSAl Viro __be32 *p; 4849aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 48501da177e4SLinus Torvalds int status; 48511da177e4SLinus Torvalds 48521da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4853c1d51931STrond Myklebust if (status != -EIO) 4854c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 485507d30434SBenny Halevy if (!status) 485607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 485707d30434SBenny Halevy if (unlikely(status)) 48581da177e4SLinus Torvalds return status; 48591da177e4SLinus Torvalds 48601da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48611da177e4SLinus Torvalds 4862c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4863c0eae66eSBenny Halevy if (unlikely(!p)) 4864c0eae66eSBenny Halevy goto out_overflow; 48656f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4866cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48671da177e4SLinus Torvalds if (bmlen > 10) 48681da177e4SLinus Torvalds goto xdr_error; 48691da177e4SLinus Torvalds 4870c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4871c0eae66eSBenny Halevy if (unlikely(!p)) 4872c0eae66eSBenny Halevy goto out_overflow; 4873aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4874aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48756f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4876aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4877aa53ed54SJeff Layton res->attrset[i] = 0; 4878aa53ed54SJeff Layton 48791da177e4SLinus Torvalds return decode_delegation(xdr, res); 48801da177e4SLinus Torvalds xdr_error: 48813110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48821da177e4SLinus Torvalds return -EIO; 4883c0eae66eSBenny Halevy out_overflow: 4884c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4885c0eae66eSBenny Halevy return -EIO; 48861da177e4SLinus Torvalds } 48871da177e4SLinus Torvalds 48881da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 48891da177e4SLinus Torvalds { 48901da177e4SLinus Torvalds int status; 48911da177e4SLinus Torvalds 48921da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4893c1d51931STrond Myklebust if (status != -EIO) 4894c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 489507d30434SBenny Halevy if (!status) 489607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48971da177e4SLinus Torvalds return status; 48981da177e4SLinus Torvalds } 48991da177e4SLinus Torvalds 49001da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 49011da177e4SLinus Torvalds { 49021da177e4SLinus Torvalds int status; 49031da177e4SLinus Torvalds 49041da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4905c1d51931STrond Myklebust if (status != -EIO) 4906c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 490707d30434SBenny Halevy if (!status) 490807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49091da177e4SLinus Torvalds return status; 49101da177e4SLinus Torvalds } 49111da177e4SLinus Torvalds 49121da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 49131da177e4SLinus Torvalds { 49141da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 49151da177e4SLinus Torvalds } 49161da177e4SLinus Torvalds 49171da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 49181da177e4SLinus Torvalds { 49191da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 49201da177e4SLinus Torvalds } 49211da177e4SLinus Torvalds 49221da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 49231da177e4SLinus Torvalds { 49248687b63aSAl Viro __be32 *p; 492564bd577eSTrond Myklebust uint32_t count, eof, recvd; 49261da177e4SLinus Torvalds int status; 49271da177e4SLinus Torvalds 49281da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 49291da177e4SLinus Torvalds if (status) 49301da177e4SLinus Torvalds return status; 4931c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4932c0eae66eSBenny Halevy if (unlikely(!p)) 4933c0eae66eSBenny Halevy goto out_overflow; 49346f723f77SBenny Halevy eof = be32_to_cpup(p++); 4935cccddf4fSBenny Halevy count = be32_to_cpup(p); 493664bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 49371da177e4SLinus Torvalds if (count > recvd) { 4938fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 49391da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 49401da177e4SLinus Torvalds count = recvd; 49411da177e4SLinus Torvalds eof = 0; 49421da177e4SLinus Torvalds } 49431da177e4SLinus Torvalds res->eof = eof; 49441da177e4SLinus Torvalds res->count = count; 49451da177e4SLinus Torvalds return 0; 4946c0eae66eSBenny Halevy out_overflow: 4947c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4948c0eae66eSBenny Halevy return -EIO; 49491da177e4SLinus Torvalds } 49501da177e4SLinus Torvalds 49511da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 49521da177e4SLinus Torvalds { 4953bcecff77SChuck Lever int status; 4954cd93710eSChuck Lever __be32 verf[2]; 49551da177e4SLinus Torvalds 49561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4957db942bbdSBenny Halevy if (!status) 4958db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4959db942bbdSBenny Halevy if (unlikely(status)) 49601da177e4SLinus Torvalds return status; 4961cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 496244109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 4963cd93710eSChuck Lever __func__, verf[0], verf[1]); 496464bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 49651da177e4SLinus Torvalds } 49661da177e4SLinus Torvalds 49671da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49681da177e4SLinus Torvalds { 49691da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 4970bcecff77SChuck Lever u32 len, recvd; 49718687b63aSAl Viro __be32 *p; 49721da177e4SLinus Torvalds int status; 49731da177e4SLinus Torvalds 49741da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49751da177e4SLinus Torvalds if (status) 49761da177e4SLinus Torvalds return status; 49771da177e4SLinus Torvalds 49781da177e4SLinus Torvalds /* Convert length of symlink */ 4979c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4980c0eae66eSBenny Halevy if (unlikely(!p)) 4981c0eae66eSBenny Halevy goto out_overflow; 4982cccddf4fSBenny Halevy len = be32_to_cpup(p); 49831da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4984fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49851da177e4SLinus Torvalds return -ENAMETOOLONG; 49861da177e4SLinus Torvalds } 498764bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 49881da177e4SLinus Torvalds if (recvd < len) { 4989fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 49901da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 49911da177e4SLinus Torvalds return -EIO; 49921da177e4SLinus Torvalds } 49931da177e4SLinus Torvalds /* 49941da177e4SLinus Torvalds * The XDR encode routine has set things up so that 49951da177e4SLinus Torvalds * the link text will be copied directly into the 49961da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 49971da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 49981da177e4SLinus Torvalds * null-termination). 49991da177e4SLinus Torvalds */ 5000b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 50011da177e4SLinus Torvalds return 0; 5002c0eae66eSBenny Halevy out_overflow: 5003c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5004c0eae66eSBenny Halevy return -EIO; 50051da177e4SLinus Torvalds } 50061da177e4SLinus Torvalds 50071da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 50081da177e4SLinus Torvalds { 50091da177e4SLinus Torvalds int status; 50101da177e4SLinus Torvalds 50111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 50121da177e4SLinus Torvalds if (status) 50131da177e4SLinus Torvalds goto out; 50141da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 50151da177e4SLinus Torvalds out: 50161da177e4SLinus Torvalds return status; 50171da177e4SLinus Torvalds } 50181da177e4SLinus Torvalds 50191da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 50201da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 50211da177e4SLinus Torvalds { 50221da177e4SLinus Torvalds int status; 50231da177e4SLinus Torvalds 50241da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 50251da177e4SLinus Torvalds if (status) 50261da177e4SLinus Torvalds goto out; 50271da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 50281da177e4SLinus Torvalds goto out; 50291da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 50301da177e4SLinus Torvalds out: 50311da177e4SLinus Torvalds return status; 50321da177e4SLinus Torvalds } 50331da177e4SLinus Torvalds 50341da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50351da177e4SLinus Torvalds { 50361da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50371da177e4SLinus Torvalds } 50381da177e4SLinus Torvalds 503956ae19f3STrond Myklebust static int 504056ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 504156ae19f3STrond Myklebust { 504256ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 504356ae19f3STrond Myklebust } 504456ae19f3STrond Myklebust 5045029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5046bf118a34SAndy Adamson struct nfs_getaclres *res) 5047029d105eSJ. Bruce Fields { 5048256e48bbSTrond Myklebust unsigned int savep; 5049029d105eSJ. Bruce Fields uint32_t attrlen, 5050dae100c2SFred Isaman bitmap[3] = {0}; 5051029d105eSJ. Bruce Fields int status; 5052cff298c7STrond Myklebust unsigned int pg_offset; 5053029d105eSJ. Bruce Fields 5054bf118a34SAndy Adamson res->acl_len = 0; 5055029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5056029d105eSJ. Bruce Fields goto out; 50575a006899SSachin Prabhu 5058519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5059519d3959STrond Myklebust 5060cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5061cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 50625a006899SSachin Prabhu 5063029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5064029d105eSJ. Bruce Fields goto out; 5065029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5066029d105eSJ. Bruce Fields goto out; 5067029d105eSJ. Bruce Fields 5068029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5069029d105eSJ. Bruce Fields return -EIO; 5070029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5071029d105eSJ. Bruce Fields 5072bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5073bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5074bf118a34SAndy Adamson * variable length bitmaps.*/ 5075cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5076519d3959STrond Myklebust res->acl_len = attrlen; 50771f1ea6c2STrond Myklebust 50781f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 50791f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 50801f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 50811f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5082519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5083cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5084029d105eSJ. Bruce Fields } 50858c233cf9SJ. Bruce Fields } else 50868c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5087029d105eSJ. Bruce Fields 5088029d105eSJ. Bruce Fields out: 5089029d105eSJ. Bruce Fields return status; 5090029d105eSJ. Bruce Fields } 5091029d105eSJ. Bruce Fields 50921da177e4SLinus Torvalds static int 50931da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 50941da177e4SLinus Torvalds { 50951da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 50961da177e4SLinus Torvalds } 50971da177e4SLinus Torvalds 50989e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 50991da177e4SLinus Torvalds { 51008687b63aSAl Viro __be32 *p; 51011da177e4SLinus Torvalds uint32_t bmlen; 51021da177e4SLinus Torvalds int status; 51031da177e4SLinus Torvalds 51041da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 51051da177e4SLinus Torvalds if (status) 51061da177e4SLinus Torvalds return status; 5107c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5108c0eae66eSBenny Halevy if (unlikely(!p)) 5109c0eae66eSBenny Halevy goto out_overflow; 5110cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5111c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5112c0eae66eSBenny Halevy if (likely(p)) 51131da177e4SLinus Torvalds return 0; 5114c0eae66eSBenny Halevy out_overflow: 5115c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5116c0eae66eSBenny Halevy return -EIO; 51171da177e4SLinus Torvalds } 51181da177e4SLinus Torvalds 5119bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 51201da177e4SLinus Torvalds { 51218687b63aSAl Viro __be32 *p; 51221da177e4SLinus Torvalds uint32_t opnum; 51231da177e4SLinus Torvalds int32_t nfserr; 51241da177e4SLinus Torvalds 5125c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5126c0eae66eSBenny Halevy if (unlikely(!p)) 5127c0eae66eSBenny Halevy goto out_overflow; 51286f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51291da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5130fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51311da177e4SLinus Torvalds " %d\n", opnum); 51321da177e4SLinus Torvalds return -EIO; 51331da177e4SLinus Torvalds } 5134cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51351da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5136c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5137c0eae66eSBenny Halevy if (unlikely(!p)) 5138c0eae66eSBenny Halevy goto out_overflow; 5139bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5140bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51411da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51421da177e4SLinus Torvalds uint32_t len; 51431da177e4SLinus Torvalds 51441da177e4SLinus Torvalds /* skip netid string */ 5145c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5146c0eae66eSBenny Halevy if (unlikely(!p)) 5147c0eae66eSBenny Halevy goto out_overflow; 5148cccddf4fSBenny Halevy len = be32_to_cpup(p); 5149c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5150c0eae66eSBenny Halevy if (unlikely(!p)) 5151c0eae66eSBenny Halevy goto out_overflow; 51521da177e4SLinus Torvalds 51531da177e4SLinus Torvalds /* skip uaddr string */ 5154c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5155c0eae66eSBenny Halevy if (unlikely(!p)) 5156c0eae66eSBenny Halevy goto out_overflow; 5157cccddf4fSBenny Halevy len = be32_to_cpup(p); 5158c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5159c0eae66eSBenny Halevy if (unlikely(!p)) 5160c0eae66eSBenny Halevy goto out_overflow; 51611da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51621da177e4SLinus Torvalds } else 5163856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51641da177e4SLinus Torvalds 51651da177e4SLinus Torvalds return 0; 5166c0eae66eSBenny Halevy out_overflow: 5167c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5168c0eae66eSBenny Halevy return -EIO; 51691da177e4SLinus Torvalds } 51701da177e4SLinus Torvalds 51711da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51721da177e4SLinus Torvalds { 51731da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51741da177e4SLinus Torvalds } 51751da177e4SLinus Torvalds 51761da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51771da177e4SLinus Torvalds { 51788687b63aSAl Viro __be32 *p; 51791da177e4SLinus Torvalds int status; 51801da177e4SLinus Torvalds 51811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51821da177e4SLinus Torvalds if (status) 51831da177e4SLinus Torvalds return status; 51841da177e4SLinus Torvalds 51852f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5186c0eae66eSBenny Halevy if (unlikely(!p)) 5187c0eae66eSBenny Halevy goto out_overflow; 51886f723f77SBenny Halevy res->count = be32_to_cpup(p++); 51896f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 51902f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5191c0eae66eSBenny Halevy out_overflow: 5192c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5193c0eae66eSBenny Halevy return -EIO; 51941da177e4SLinus Torvalds } 51951da177e4SLinus Torvalds 51961da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 51971da177e4SLinus Torvalds { 51981da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 51991da177e4SLinus Torvalds } 52001da177e4SLinus Torvalds 5201fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5202fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 52035a5ea0d4SBryan Schumaker { 5204fb15b26fSChuck Lever u32 oid_len; 52055a5ea0d4SBryan Schumaker __be32 *p; 52065a5ea0d4SBryan Schumaker 52075a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52085a5ea0d4SBryan Schumaker if (unlikely(!p)) 52095a5ea0d4SBryan Schumaker goto out_overflow; 5210fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5211fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 52125a5ea0d4SBryan Schumaker goto out_err; 52135a5ea0d4SBryan Schumaker 5214fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 52155a5ea0d4SBryan Schumaker if (unlikely(!p)) 52165a5ea0d4SBryan Schumaker goto out_overflow; 5217fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5218fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 52195a5ea0d4SBryan Schumaker 52205a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 52215a5ea0d4SBryan Schumaker if (unlikely(!p)) 52225a5ea0d4SBryan Schumaker goto out_overflow; 5223fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5224fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 52255a5ea0d4SBryan Schumaker 52265a5ea0d4SBryan Schumaker return 0; 52275a5ea0d4SBryan Schumaker 52285a5ea0d4SBryan Schumaker out_overflow: 52295a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52305a5ea0d4SBryan Schumaker return -EIO; 52315a5ea0d4SBryan Schumaker out_err: 52325a5ea0d4SBryan Schumaker return -EINVAL; 52335a5ea0d4SBryan Schumaker } 52345a5ea0d4SBryan Schumaker 523531e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52365a5ea0d4SBryan Schumaker { 5237fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5238fb15b26fSChuck Lever unsigned int i, num_flavors; 52395a5ea0d4SBryan Schumaker int status; 52405a5ea0d4SBryan Schumaker __be32 *p; 52415a5ea0d4SBryan Schumaker 52425a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52435a5ea0d4SBryan Schumaker if (unlikely(!p)) 52445a5ea0d4SBryan Schumaker goto out_overflow; 52455a5ea0d4SBryan Schumaker 5246c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5247c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5248c3dfc280SBryan Schumaker 5249c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52505a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5251c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52525a5ea0d4SBryan Schumaker break; 52535a5ea0d4SBryan Schumaker 52545a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52555a5ea0d4SBryan Schumaker if (unlikely(!p)) 52565a5ea0d4SBryan Schumaker goto out_overflow; 52575a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52585a5ea0d4SBryan Schumaker 52595a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5260613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5261613e901eSBryan Schumaker if (status) 5262613e901eSBryan Schumaker goto out; 52635a5ea0d4SBryan Schumaker } 5264c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52655a5ea0d4SBryan Schumaker } 52665a5ea0d4SBryan Schumaker 526731e4dda4SBryan Schumaker status = 0; 5268613e901eSBryan Schumaker out: 5269613e901eSBryan Schumaker return status; 52705a5ea0d4SBryan Schumaker out_overflow: 52715a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52725a5ea0d4SBryan Schumaker return -EIO; 52735a5ea0d4SBryan Schumaker } 52745a5ea0d4SBryan Schumaker 527531e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 527631e4dda4SBryan Schumaker { 527731e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 527831e4dda4SBryan Schumaker if (status) 527931e4dda4SBryan Schumaker return status; 528031e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 528131e4dda4SBryan Schumaker } 528231e4dda4SBryan Schumaker 528399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 528431e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 528531e4dda4SBryan Schumaker { 528631e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 528731e4dda4SBryan Schumaker if (status) 528831e4dda4SBryan Schumaker return status; 528931e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 529031e4dda4SBryan Schumaker } 529131e4dda4SBryan Schumaker 529299fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 529399fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 529499fe60d0SBenny Halevy { 529599fe60d0SBenny Halevy __be32 *p; 529699fe60d0SBenny Halevy uint32_t dummy; 52972460ba57SBenny Halevy char *dummy_str; 529899fe60d0SBenny Halevy int status; 52997d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 530099fe60d0SBenny Halevy 530199fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 530299fe60d0SBenny Halevy if (status) 530399fe60d0SBenny Halevy return status; 530499fe60d0SBenny Halevy 5305c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5306c0eae66eSBenny Halevy if (unlikely(!p)) 5307c0eae66eSBenny Halevy goto out_overflow; 530832b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5309c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5310c0eae66eSBenny Halevy if (unlikely(!p)) 5311c0eae66eSBenny Halevy goto out_overflow; 531232b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 531332b01310STrond Myklebust res->flags = be32_to_cpup(p++); 531499fe60d0SBenny Halevy 531599fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5316cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 531799fe60d0SBenny Halevy if (dummy != SP4_NONE) 531899fe60d0SBenny Halevy return -EIO; 531999fe60d0SBenny Halevy 5320acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5321c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5322c0eae66eSBenny Halevy if (unlikely(!p)) 5323c0eae66eSBenny Halevy goto out_overflow; 5324acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 532599fe60d0SBenny Halevy 5326acdeb69dSChuck Lever /* server_owner4.so_major_id */ 53272460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53282460ba57SBenny Halevy if (unlikely(status)) 53292460ba57SBenny Halevy return status; 533078fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 533178fe0f41SWeston Andros Adamson return -EIO; 5332acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5333acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 533478fe0f41SWeston Andros Adamson 5335acdeb69dSChuck Lever /* server_scope4 */ 5336acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5337acdeb69dSChuck Lever if (unlikely(status)) 5338acdeb69dSChuck Lever return status; 5339acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5340acdeb69dSChuck Lever return -EIO; 534178fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 534278fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 534378fe0f41SWeston Andros Adamson 53447d2ed9acSWeston Andros Adamson /* Implementation Id */ 53457d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 53467d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53477d2ed9acSWeston Andros Adamson goto out_overflow; 53487d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 53497d2ed9acSWeston Andros Adamson 53507d2ed9acSWeston Andros Adamson if (impl_id_count) { 53517d2ed9acSWeston Andros Adamson /* nii_domain */ 53522460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53532460ba57SBenny Halevy if (unlikely(status)) 53542460ba57SBenny Halevy return status; 53557d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53567d2ed9acSWeston Andros Adamson return -EIO; 53577d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 535899fe60d0SBenny Halevy 53597d2ed9acSWeston Andros Adamson /* nii_name */ 53607d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53617d2ed9acSWeston Andros Adamson if (unlikely(status)) 53627d2ed9acSWeston Andros Adamson return status; 53637d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53647d2ed9acSWeston Andros Adamson return -EIO; 53657d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 53667d2ed9acSWeston Andros Adamson 53677d2ed9acSWeston Andros Adamson /* nii_date */ 53687d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 53697d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53707d2ed9acSWeston Andros Adamson goto out_overflow; 53717d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 53727d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 53737d2ed9acSWeston Andros Adamson 53747d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 53757d2ed9acSWeston Andros Adamson } 537699fe60d0SBenny Halevy return 0; 5377c0eae66eSBenny Halevy out_overflow: 5378c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5379c0eae66eSBenny Halevy return -EIO; 538099fe60d0SBenny Halevy } 5381fc931582SAndy Adamson 5382fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5383fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5384fc931582SAndy Adamson { 5385fc931582SAndy Adamson __be32 *p; 5386c9c30dd5SBenny Halevy u32 nr_attrs, val; 5387fc931582SAndy Adamson 5388c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5389c0eae66eSBenny Halevy if (unlikely(!p)) 5390c0eae66eSBenny Halevy goto out_overflow; 5391c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5392c9c30dd5SBenny Halevy if (val) 5393c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 53946f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 53956f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 53966f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 53976f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 53986f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5399cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5400fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5401a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5402a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5403fc931582SAndy Adamson return -EINVAL; 5404fc931582SAndy Adamson } 5405c0eae66eSBenny Halevy if (nr_attrs == 1) { 5406c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5407c0eae66eSBenny Halevy if (unlikely(!p)) 5408c0eae66eSBenny Halevy goto out_overflow; 5409c0eae66eSBenny Halevy } 5410fc931582SAndy Adamson return 0; 5411c0eae66eSBenny Halevy out_overflow: 5412c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5413c0eae66eSBenny Halevy return -EIO; 5414fc931582SAndy Adamson } 5415fc931582SAndy Adamson 5416e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5417e78291e4SBenny Halevy { 5418e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5419fc931582SAndy Adamson } 5420fc931582SAndy Adamson 54217c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 54227c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 54237c44f1aeSWeston Andros Adamson { 54247c44f1aeSWeston Andros Adamson __be32 *p; 54257c44f1aeSWeston Andros Adamson int status; 54267c44f1aeSWeston Andros Adamson 54277c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 54287c44f1aeSWeston Andros Adamson if (!status) 54297c44f1aeSWeston Andros Adamson status = decode_sessionid(xdr, &res->session->sess_id); 54307c44f1aeSWeston Andros Adamson if (unlikely(status)) 54317c44f1aeSWeston Andros Adamson return status; 54327c44f1aeSWeston Andros Adamson 54337c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 54347c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 54357c44f1aeSWeston Andros Adamson if (unlikely(!p)) 54367c44f1aeSWeston Andros Adamson goto out_overflow; 54377c44f1aeSWeston Andros Adamson 54387c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 54397c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 54407c44f1aeSWeston Andros Adamson return -EIO; 54417c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 54427c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 54437c44f1aeSWeston Andros Adamson else 54447c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 54457c44f1aeSWeston Andros Adamson 54467c44f1aeSWeston Andros Adamson return 0; 54477c44f1aeSWeston Andros Adamson out_overflow: 54487c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 54497c44f1aeSWeston Andros Adamson return -EIO; 54507c44f1aeSWeston Andros Adamson } 54517c44f1aeSWeston Andros Adamson 5452fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5453fc931582SAndy Adamson struct nfs41_create_session_res *res) 5454fc931582SAndy Adamson { 5455fc931582SAndy Adamson __be32 *p; 5456fc931582SAndy Adamson int status; 5457fc931582SAndy Adamson struct nfs_client *clp = res->client; 5458fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5459fc931582SAndy Adamson 5460fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5461e78291e4SBenny Halevy if (!status) 5462e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5463e78291e4SBenny Halevy if (unlikely(status)) 5464fc931582SAndy Adamson return status; 5465fc931582SAndy Adamson 5466fc931582SAndy Adamson /* seqid, flags */ 5467c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5468c0eae66eSBenny Halevy if (unlikely(!p)) 5469c0eae66eSBenny Halevy goto out_overflow; 54706f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5471cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5472fc931582SAndy Adamson 5473fc931582SAndy Adamson /* Channel attributes */ 5474fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5475fc931582SAndy Adamson if (!status) 5476fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5477fc931582SAndy Adamson return status; 5478c0eae66eSBenny Halevy out_overflow: 5479c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5480c0eae66eSBenny Halevy return -EIO; 5481fc931582SAndy Adamson } 54820f3e66c6SAndy Adamson 54830f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 54840f3e66c6SAndy Adamson { 54850f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 54860f3e66c6SAndy Adamson } 548718019753SRicardo Labiaga 548866245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 548966245539STrond Myklebust { 549066245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 549166245539STrond Myklebust } 549266245539STrond Myklebust 549318019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 549418019753SRicardo Labiaga { 549518019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 549618019753SRicardo Labiaga } 549799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 549899fe60d0SBenny Halevy 54999b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 55009b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 55019b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 55029b7b9fccSAndy Adamson { 55039b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5504e3725ec0STrond Myklebust struct nfs4_session *session; 5505fc01cea9SAndy Adamson struct nfs4_sessionid id; 5506fc01cea9SAndy Adamson u32 dummy; 5507fc01cea9SAndy Adamson int status; 5508fc01cea9SAndy Adamson __be32 *p; 5509fc01cea9SAndy Adamson 5510e3725ec0STrond Myklebust if (res->sr_slot == NULL) 55119b7b9fccSAndy Adamson return 0; 55129b7b9fccSAndy Adamson 5513fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5514e78291e4SBenny Halevy if (!status) 5515e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5516e78291e4SBenny Halevy if (unlikely(status)) 5517fc01cea9SAndy Adamson goto out_err; 55189b7b9fccSAndy Adamson 5519fc01cea9SAndy Adamson /* 5520fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5521fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5522fc01cea9SAndy Adamson */ 5523fdcb4577STrond Myklebust status = -EREMOTEIO; 5524e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5525fc01cea9SAndy Adamson 5526e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5527fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5528fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5529fc01cea9SAndy Adamson goto out_err; 5530fc01cea9SAndy Adamson } 5531e78291e4SBenny Halevy 5532c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5533c0eae66eSBenny Halevy if (unlikely(!p)) 5534c0eae66eSBenny Halevy goto out_overflow; 5535e78291e4SBenny Halevy 5536fc01cea9SAndy Adamson /* seqid */ 55376f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5538dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5539fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5540fc01cea9SAndy Adamson goto out_err; 5541fc01cea9SAndy Adamson } 5542fc01cea9SAndy Adamson /* slot id */ 55436f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5544df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5545fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5546fc01cea9SAndy Adamson goto out_err; 5547fc01cea9SAndy Adamson } 5548da0507b7STrond Myklebust /* highest slot id */ 5549da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5550464ee9f9STrond Myklebust /* target highest slot id */ 5551464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 55520629e370SAlexandros Batsakis /* result flags */ 55530629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5554fc01cea9SAndy Adamson status = 0; 5555fc01cea9SAndy Adamson out_err: 5556fc01cea9SAndy Adamson res->sr_status = status; 5557fc01cea9SAndy Adamson return status; 5558c0eae66eSBenny Halevy out_overflow: 5559c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5560c0eae66eSBenny Halevy status = -EIO; 5561c0eae66eSBenny Halevy goto out_err; 5562fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 55639b7b9fccSAndy Adamson return 0; 5564fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 55659b7b9fccSAndy Adamson } 55669b7b9fccSAndy Adamson 5567b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 55687f11d8d3SAndy Adamson /* 55697f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 55707f11d8d3SAndy Adamson */ 55717f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 55727f11d8d3SAndy Adamson struct pnfs_devicelist *res) 55737f11d8d3SAndy Adamson { 55747f11d8d3SAndy Adamson __be32 *p; 55757f11d8d3SAndy Adamson int status, i; 557698d94524STrond Myklebust nfs4_verifier verftemp; 55777f11d8d3SAndy Adamson 55787f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 55797f11d8d3SAndy Adamson if (status) 55807f11d8d3SAndy Adamson return status; 55817f11d8d3SAndy Adamson 55827f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 55837f11d8d3SAndy Adamson if (unlikely(!p)) 55847f11d8d3SAndy Adamson goto out_overflow; 55857f11d8d3SAndy Adamson 55867f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 55877f11d8d3SAndy Adamson p += 2; 55887f11d8d3SAndy Adamson 55897f11d8d3SAndy Adamson /* Read verifier */ 559098d94524STrond Myklebust p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE); 55917f11d8d3SAndy Adamson 55927f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 55937f11d8d3SAndy Adamson 55947f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 55957f11d8d3SAndy Adamson 55967f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5597a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 55987f11d8d3SAndy Adamson __func__, res->num_devs); 55997f11d8d3SAndy Adamson return -EIO; 56007f11d8d3SAndy Adamson } 56017f11d8d3SAndy Adamson 56027f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 56037f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 56047f11d8d3SAndy Adamson if (unlikely(!p)) 56057f11d8d3SAndy Adamson goto out_overflow; 56067f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 56077f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 56087f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 56097f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 56107f11d8d3SAndy Adamson return 0; 56117f11d8d3SAndy Adamson out_overflow: 56127f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 56137f11d8d3SAndy Adamson return -EIO; 56147f11d8d3SAndy Adamson } 5615b1f69b75SAndy Adamson 5616b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5617b1f69b75SAndy Adamson struct pnfs_device *pdev) 5618b1f69b75SAndy Adamson { 5619b1f69b75SAndy Adamson __be32 *p; 5620b1f69b75SAndy Adamson uint32_t len, type; 5621b1f69b75SAndy Adamson int status; 5622b1f69b75SAndy Adamson 5623b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5624b1f69b75SAndy Adamson if (status) { 5625b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5626b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5627b1f69b75SAndy Adamson if (unlikely(!p)) 5628b1f69b75SAndy Adamson goto out_overflow; 5629b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5630b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5631b1f69b75SAndy Adamson __func__, pdev->mincount); 5632b1f69b75SAndy Adamson } 5633b1f69b75SAndy Adamson return status; 5634b1f69b75SAndy Adamson } 5635b1f69b75SAndy Adamson 5636b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5637b1f69b75SAndy Adamson if (unlikely(!p)) 5638b1f69b75SAndy Adamson goto out_overflow; 5639b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5640b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5641b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5642b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5643b1f69b75SAndy Adamson return -EINVAL; 5644b1f69b75SAndy Adamson } 5645b1f69b75SAndy Adamson /* 5646b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5647b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5648b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5649b1f69b75SAndy Adamson */ 5650b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 565113fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 565213fe4ba1STrond Myklebust goto out_overflow; 5653b1f69b75SAndy Adamson 5654b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5655b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5656b1f69b75SAndy Adamson if (unlikely(!p)) 5657b1f69b75SAndy Adamson goto out_overflow; 5658b1f69b75SAndy Adamson len = be32_to_cpup(p); 5659b1f69b75SAndy Adamson if (len) { 5660ead00597SChuck Lever uint32_t i; 5661b1f69b75SAndy Adamson 5662b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5663b1f69b75SAndy Adamson if (unlikely(!p)) 5664b1f69b75SAndy Adamson goto out_overflow; 5665b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5666b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5667b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5668b1f69b75SAndy Adamson __func__); 5669b1f69b75SAndy Adamson return -EIO; 5670b1f69b75SAndy Adamson } 5671b1f69b75SAndy Adamson } 5672b1f69b75SAndy Adamson } 5673b1f69b75SAndy Adamson return 0; 5674b1f69b75SAndy Adamson out_overflow: 5675b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5676b1f69b75SAndy Adamson return -EIO; 5677b1f69b75SAndy Adamson } 5678b1f69b75SAndy Adamson 5679b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5680b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5681b1f69b75SAndy Adamson { 5682b1f69b75SAndy Adamson __be32 *p; 5683b1f69b75SAndy Adamson int status; 5684b1f69b75SAndy Adamson u32 layout_count; 568564bd577eSTrond Myklebust u32 recvd; 5686b1f69b75SAndy Adamson 5687b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5688b1f69b75SAndy Adamson if (status) 5689b1f69b75SAndy Adamson return status; 5690ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5691b1f69b75SAndy Adamson if (unlikely(!p)) 5692b1f69b75SAndy Adamson goto out_overflow; 5693ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5694ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5695ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5696ea9d23f5STrond Myklebust if (unlikely(!p)) 5697ea9d23f5STrond Myklebust goto out_overflow; 5698b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5699b1f69b75SAndy Adamson if (!layout_count) { 5700b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5701b1f69b75SAndy Adamson __func__); 5702b1f69b75SAndy Adamson return -EINVAL; 5703b1f69b75SAndy Adamson } 5704b1f69b75SAndy Adamson 570535124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5706b1f69b75SAndy Adamson if (unlikely(!p)) 5707b1f69b75SAndy Adamson goto out_overflow; 5708b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5709b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5710b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5711b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 571235124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5713b1f69b75SAndy Adamson 5714b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5715b1f69b75SAndy Adamson __func__, 5716b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5717b1f69b75SAndy Adamson (unsigned long)res->range.length, 5718b1f69b75SAndy Adamson res->range.iomode, 5719b1f69b75SAndy Adamson res->type, 572035124a09SWeston Andros Adamson res->layoutp->len); 5721b1f69b75SAndy Adamson 572264bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 572335124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 572435124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 572535124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 572635124a09SWeston Andros Adamson res->layoutp->len, recvd); 572735124a09SWeston Andros Adamson return -EINVAL; 572835124a09SWeston Andros Adamson } 572935124a09SWeston Andros Adamson 5730b1f69b75SAndy Adamson if (layout_count > 1) { 5731b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5732b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5733b1f69b75SAndy Adamson * the client may see a response that is less than the 5734b1f69b75SAndy Adamson * minimum it requested. 5735b1f69b75SAndy Adamson */ 5736b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5737b1f69b75SAndy Adamson __func__, layout_count); 5738b1f69b75SAndy Adamson } 5739b1f69b75SAndy Adamson 5740b1f69b75SAndy Adamson return 0; 5741b1f69b75SAndy Adamson out_overflow: 5742b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5743b1f69b75SAndy Adamson return -EIO; 5744b1f69b75SAndy Adamson } 5745863a3c6cSAndy Adamson 5746cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5747cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5748cbe82603SBenny Halevy { 5749cbe82603SBenny Halevy __be32 *p; 5750cbe82603SBenny Halevy int status; 5751cbe82603SBenny Halevy 5752cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5753cbe82603SBenny Halevy if (status) 5754cbe82603SBenny Halevy return status; 5755cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5756cbe82603SBenny Halevy if (unlikely(!p)) 5757cbe82603SBenny Halevy goto out_overflow; 5758cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5759cbe82603SBenny Halevy if (res->lrs_present) 5760cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5761cbe82603SBenny Halevy return status; 5762cbe82603SBenny Halevy out_overflow: 5763cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5764cbe82603SBenny Halevy return -EIO; 5765cbe82603SBenny Halevy } 5766cbe82603SBenny Halevy 5767863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5768863a3c6cSAndy Adamson struct rpc_rqst *req, 5769863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5770863a3c6cSAndy Adamson { 5771863a3c6cSAndy Adamson __be32 *p; 5772863a3c6cSAndy Adamson __u32 sizechanged; 5773863a3c6cSAndy Adamson int status; 5774863a3c6cSAndy Adamson 5775863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5776db29c089SAndy Adamson res->status = status; 5777863a3c6cSAndy Adamson if (status) 5778863a3c6cSAndy Adamson return status; 5779863a3c6cSAndy Adamson 5780863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5781863a3c6cSAndy Adamson if (unlikely(!p)) 5782863a3c6cSAndy Adamson goto out_overflow; 5783863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5784863a3c6cSAndy Adamson 5785863a3c6cSAndy Adamson if (sizechanged) { 5786863a3c6cSAndy Adamson /* throw away new size */ 5787863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5788863a3c6cSAndy Adamson if (unlikely(!p)) 5789863a3c6cSAndy Adamson goto out_overflow; 5790863a3c6cSAndy Adamson } 5791863a3c6cSAndy Adamson return 0; 5792863a3c6cSAndy Adamson out_overflow: 5793863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5794863a3c6cSAndy Adamson return -EIO; 5795863a3c6cSAndy Adamson } 57967d974794SBryan Schumaker 57977d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 57987d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 57997d974794SBryan Schumaker { 58007d974794SBryan Schumaker __be32 *p; 58017d974794SBryan Schumaker int status; 58027d974794SBryan Schumaker int num_res; 58037d974794SBryan Schumaker 58047d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 58057d974794SBryan Schumaker if (status) 58067d974794SBryan Schumaker return status; 58077d974794SBryan Schumaker 58087d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58097d974794SBryan Schumaker if (unlikely(!p)) 58107d974794SBryan Schumaker goto out_overflow; 58117d974794SBryan Schumaker num_res = be32_to_cpup(p++); 58127d974794SBryan Schumaker if (num_res != 1) 58137d974794SBryan Schumaker goto out; 58147d974794SBryan Schumaker 58157d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58167d974794SBryan Schumaker if (unlikely(!p)) 58177d974794SBryan Schumaker goto out_overflow; 58187d974794SBryan Schumaker res->status = be32_to_cpup(p++); 58191cab0652SBryan Schumaker 58201cab0652SBryan Schumaker return status; 58217d974794SBryan Schumaker out_overflow: 58227d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 58237d974794SBryan Schumaker out: 58247d974794SBryan Schumaker return -EIO; 58257d974794SBryan Schumaker } 58269aeda35fSBryan Schumaker 58279aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 58289aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 58299aeda35fSBryan Schumaker { 58309aeda35fSBryan Schumaker __be32 *p; 58319aeda35fSBryan Schumaker int status; 58329aeda35fSBryan Schumaker 58339aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 58349aeda35fSBryan Schumaker if (status) 58359aeda35fSBryan Schumaker return status; 58369aeda35fSBryan Schumaker 58379aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 58389aeda35fSBryan Schumaker if (unlikely(!p)) 58399aeda35fSBryan Schumaker goto out_overflow; 58409aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 58419aeda35fSBryan Schumaker return res->status; 58429aeda35fSBryan Schumaker out_overflow: 58439aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 58449aeda35fSBryan Schumaker return -EIO; 58459aeda35fSBryan Schumaker } 5846b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5847b1f69b75SAndy Adamson 58481da177e4SLinus Torvalds /* 584949c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 585049c2559eSBenny Halevy */ 585149c2559eSBenny Halevy 585249c2559eSBenny Halevy /* 58531da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 58541da177e4SLinus Torvalds */ 5855bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5856bf269551SChuck Lever struct xdr_stream *xdr, 5857bf269551SChuck Lever struct nfs_closeres *res) 58581da177e4SLinus Torvalds { 58591da177e4SLinus Torvalds struct compound_hdr hdr; 58601da177e4SLinus Torvalds int status; 58611da177e4SLinus Torvalds 5862bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58631da177e4SLinus Torvalds if (status) 58641da177e4SLinus Torvalds goto out; 5865bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58669b7b9fccSAndy Adamson if (status) 58679b7b9fccSAndy Adamson goto out; 5868bf269551SChuck Lever status = decode_putfh(xdr); 58691da177e4SLinus Torvalds if (status) 58701da177e4SLinus Torvalds goto out; 5871bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5872516a6af6STrond Myklebust if (status != 0) 5873516a6af6STrond Myklebust goto out; 58746926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58751da177e4SLinus Torvalds out: 58761da177e4SLinus Torvalds return status; 58771da177e4SLinus Torvalds } 58781da177e4SLinus Torvalds 58791da177e4SLinus Torvalds /* 58801da177e4SLinus Torvalds * Decode ACCESS response 58811da177e4SLinus Torvalds */ 5882bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5883bf269551SChuck Lever struct nfs4_accessres *res) 58841da177e4SLinus Torvalds { 58851da177e4SLinus Torvalds struct compound_hdr hdr; 58861da177e4SLinus Torvalds int status; 58871da177e4SLinus Torvalds 5888bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58899b7b9fccSAndy Adamson if (status) 58909b7b9fccSAndy Adamson goto out; 5891bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58929b7b9fccSAndy Adamson if (status) 58931da177e4SLinus Torvalds goto out; 5894bf269551SChuck Lever status = decode_putfh(xdr); 589576b32999STrond Myklebust if (status != 0) 589676b32999STrond Myklebust goto out; 58976168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 589876b32999STrond Myklebust if (status != 0) 589976b32999STrond Myklebust goto out; 59006926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 59011da177e4SLinus Torvalds out: 59021da177e4SLinus Torvalds return status; 59031da177e4SLinus Torvalds } 59041da177e4SLinus Torvalds 59051da177e4SLinus Torvalds /* 59061da177e4SLinus Torvalds * Decode LOOKUP response 59071da177e4SLinus Torvalds */ 5908bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5909bf269551SChuck Lever struct nfs4_lookup_res *res) 59101da177e4SLinus Torvalds { 59111da177e4SLinus Torvalds struct compound_hdr hdr; 59121da177e4SLinus Torvalds int status; 59131da177e4SLinus Torvalds 5914bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59159b7b9fccSAndy Adamson if (status) 59169b7b9fccSAndy Adamson goto out; 5917bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59189b7b9fccSAndy Adamson if (status) 59191da177e4SLinus Torvalds goto out; 5920bf269551SChuck Lever status = decode_putfh(xdr); 5921bf269551SChuck Lever if (status) 59221da177e4SLinus Torvalds goto out; 5923bf269551SChuck Lever status = decode_lookup(xdr); 5924bf269551SChuck Lever if (status) 59251da177e4SLinus Torvalds goto out; 5926bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5927bf269551SChuck Lever if (status) 59281da177e4SLinus Torvalds goto out; 59296926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59301da177e4SLinus Torvalds out: 59311da177e4SLinus Torvalds return status; 59321da177e4SLinus Torvalds } 59331da177e4SLinus Torvalds 59341da177e4SLinus Torvalds /* 59351da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 59361da177e4SLinus Torvalds */ 5937bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5938bf269551SChuck Lever struct xdr_stream *xdr, 5939bf269551SChuck Lever struct nfs4_lookup_res *res) 59401da177e4SLinus Torvalds { 59411da177e4SLinus Torvalds struct compound_hdr hdr; 59421da177e4SLinus Torvalds int status; 59431da177e4SLinus Torvalds 5944bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59459b7b9fccSAndy Adamson if (status) 59469b7b9fccSAndy Adamson goto out; 5947bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59489b7b9fccSAndy Adamson if (status) 59491da177e4SLinus Torvalds goto out; 5950bf269551SChuck Lever status = decode_putrootfh(xdr); 5951bf269551SChuck Lever if (status) 59521da177e4SLinus Torvalds goto out; 5953bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5954bf269551SChuck Lever if (status == 0) 59556926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59561da177e4SLinus Torvalds out: 59571da177e4SLinus Torvalds return status; 59581da177e4SLinus Torvalds } 59591da177e4SLinus Torvalds 59601da177e4SLinus Torvalds /* 59611da177e4SLinus Torvalds * Decode REMOVE response 59621da177e4SLinus Torvalds */ 5963bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5964bf269551SChuck Lever struct nfs_removeres *res) 59651da177e4SLinus Torvalds { 59661da177e4SLinus Torvalds struct compound_hdr hdr; 59671da177e4SLinus Torvalds int status; 59681da177e4SLinus Torvalds 5969bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59709b7b9fccSAndy Adamson if (status) 59719b7b9fccSAndy Adamson goto out; 5972bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59739b7b9fccSAndy Adamson if (status) 59741da177e4SLinus Torvalds goto out; 5975bf269551SChuck Lever status = decode_putfh(xdr); 5976bf269551SChuck Lever if (status) 597716e42959STrond Myklebust goto out; 5978bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 59791da177e4SLinus Torvalds out: 59801da177e4SLinus Torvalds return status; 59811da177e4SLinus Torvalds } 59821da177e4SLinus Torvalds 59831da177e4SLinus Torvalds /* 59841da177e4SLinus Torvalds * Decode RENAME response 59851da177e4SLinus Torvalds */ 5986bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5987bf269551SChuck Lever struct nfs_renameres *res) 59881da177e4SLinus Torvalds { 59891da177e4SLinus Torvalds struct compound_hdr hdr; 59901da177e4SLinus Torvalds int status; 59911da177e4SLinus Torvalds 5992bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59939b7b9fccSAndy Adamson if (status) 59949b7b9fccSAndy Adamson goto out; 5995bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59969b7b9fccSAndy Adamson if (status) 59971da177e4SLinus Torvalds goto out; 5998bf269551SChuck Lever status = decode_putfh(xdr); 5999bf269551SChuck Lever if (status) 60001da177e4SLinus Torvalds goto out; 6001bf269551SChuck Lever status = decode_savefh(xdr); 6002bf269551SChuck Lever if (status) 60031da177e4SLinus Torvalds goto out; 6004bf269551SChuck Lever status = decode_putfh(xdr); 6005bf269551SChuck Lever if (status) 60061da177e4SLinus Torvalds goto out; 6007bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 60081da177e4SLinus Torvalds out: 60091da177e4SLinus Torvalds return status; 60101da177e4SLinus Torvalds } 60111da177e4SLinus Torvalds 60121da177e4SLinus Torvalds /* 60131da177e4SLinus Torvalds * Decode LINK response 60141da177e4SLinus Torvalds */ 6015bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6016bf269551SChuck Lever struct nfs4_link_res *res) 60171da177e4SLinus Torvalds { 60181da177e4SLinus Torvalds struct compound_hdr hdr; 60191da177e4SLinus Torvalds int status; 60201da177e4SLinus Torvalds 6021bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60229b7b9fccSAndy Adamson if (status) 60239b7b9fccSAndy Adamson goto out; 6024bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60259b7b9fccSAndy Adamson if (status) 60261da177e4SLinus Torvalds goto out; 6027bf269551SChuck Lever status = decode_putfh(xdr); 6028bf269551SChuck Lever if (status) 60291da177e4SLinus Torvalds goto out; 6030bf269551SChuck Lever status = decode_savefh(xdr); 6031bf269551SChuck Lever if (status) 60321da177e4SLinus Torvalds goto out; 6033bf269551SChuck Lever status = decode_putfh(xdr); 6034bf269551SChuck Lever if (status) 60351da177e4SLinus Torvalds goto out; 6036bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6037bf269551SChuck Lever if (status) 603891ba2eeeSTrond Myklebust goto out; 603991ba2eeeSTrond Myklebust /* 604091ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 604191ba2eeeSTrond Myklebust * filehandle. 604291ba2eeeSTrond Myklebust */ 6043bf269551SChuck Lever status = decode_restorefh(xdr); 6044bf269551SChuck Lever if (status) 604591ba2eeeSTrond Myklebust goto out; 60466926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60471da177e4SLinus Torvalds out: 60481da177e4SLinus Torvalds return status; 60491da177e4SLinus Torvalds } 60501da177e4SLinus Torvalds 60511da177e4SLinus Torvalds /* 60521da177e4SLinus Torvalds * Decode CREATE response 60531da177e4SLinus Torvalds */ 6054bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6055bf269551SChuck Lever struct nfs4_create_res *res) 60561da177e4SLinus Torvalds { 60571da177e4SLinus Torvalds struct compound_hdr hdr; 60581da177e4SLinus Torvalds int status; 60591da177e4SLinus Torvalds 6060bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60619b7b9fccSAndy Adamson if (status) 60629b7b9fccSAndy Adamson goto out; 6063bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60649b7b9fccSAndy Adamson if (status) 60651da177e4SLinus Torvalds goto out; 6066bf269551SChuck Lever status = decode_putfh(xdr); 6067bf269551SChuck Lever if (status) 60681da177e4SLinus Torvalds goto out; 6069bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6070bf269551SChuck Lever if (status) 60711da177e4SLinus Torvalds goto out; 6072bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6073bf269551SChuck Lever if (status) 60741da177e4SLinus Torvalds goto out; 60757c317fcfSTrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60761da177e4SLinus Torvalds out: 60771da177e4SLinus Torvalds return status; 60781da177e4SLinus Torvalds } 60791da177e4SLinus Torvalds 60801da177e4SLinus Torvalds /* 60811da177e4SLinus Torvalds * Decode SYMLINK response 60821da177e4SLinus Torvalds */ 6083bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6084bf269551SChuck Lever struct nfs4_create_res *res) 60851da177e4SLinus Torvalds { 6086bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60871da177e4SLinus Torvalds } 60881da177e4SLinus Torvalds 60891da177e4SLinus Torvalds /* 60901da177e4SLinus Torvalds * Decode GETATTR response 60911da177e4SLinus Torvalds */ 6092bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6093bf269551SChuck Lever struct nfs4_getattr_res *res) 60941da177e4SLinus Torvalds { 60951da177e4SLinus Torvalds struct compound_hdr hdr; 60961da177e4SLinus Torvalds int status; 60971da177e4SLinus Torvalds 6098bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60991da177e4SLinus Torvalds if (status) 61001da177e4SLinus Torvalds goto out; 6101bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61029b7b9fccSAndy Adamson if (status) 61039b7b9fccSAndy Adamson goto out; 6104bf269551SChuck Lever status = decode_putfh(xdr); 61051da177e4SLinus Torvalds if (status) 61061da177e4SLinus Torvalds goto out; 61076926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 61081da177e4SLinus Torvalds out: 61091da177e4SLinus Torvalds return status; 61101da177e4SLinus Torvalds } 61111da177e4SLinus Torvalds 611223ec6965SJ. Bruce Fields /* 611323ec6965SJ. Bruce Fields * Encode an SETACL request 611423ec6965SJ. Bruce Fields */ 61159f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 61169f06c719SChuck Lever struct nfs_setaclargs *args) 611723ec6965SJ. Bruce Fields { 611823ec6965SJ. Bruce Fields struct compound_hdr hdr = { 611966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 612023ec6965SJ. Bruce Fields }; 612123ec6965SJ. Bruce Fields 61229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 61239f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 61249f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 61259f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6126d017931cSAndy Adamson encode_nops(&hdr); 612723ec6965SJ. Bruce Fields } 612805d564feSAndy Adamson 612923ec6965SJ. Bruce Fields /* 613023ec6965SJ. Bruce Fields * Decode SETACL response 613123ec6965SJ. Bruce Fields */ 613223ec6965SJ. Bruce Fields static int 6133bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 613473c403a9SBenny Halevy struct nfs_setaclres *res) 613523ec6965SJ. Bruce Fields { 613623ec6965SJ. Bruce Fields struct compound_hdr hdr; 613723ec6965SJ. Bruce Fields int status; 613823ec6965SJ. Bruce Fields 6139bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 614023ec6965SJ. Bruce Fields if (status) 614123ec6965SJ. Bruce Fields goto out; 6142bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61439b7b9fccSAndy Adamson if (status) 61449b7b9fccSAndy Adamson goto out; 6145bf269551SChuck Lever status = decode_putfh(xdr); 614623ec6965SJ. Bruce Fields if (status) 614723ec6965SJ. Bruce Fields goto out; 6148bf269551SChuck Lever status = decode_setattr(xdr); 614923ec6965SJ. Bruce Fields out: 615023ec6965SJ. Bruce Fields return status; 615123ec6965SJ. Bruce Fields } 61521da177e4SLinus Torvalds 61531da177e4SLinus Torvalds /* 6154029d105eSJ. Bruce Fields * Decode GETACL response 6155029d105eSJ. Bruce Fields */ 6156029d105eSJ. Bruce Fields static int 6157bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6158663c79b3SBenny Halevy struct nfs_getaclres *res) 6159029d105eSJ. Bruce Fields { 6160029d105eSJ. Bruce Fields struct compound_hdr hdr; 6161029d105eSJ. Bruce Fields int status; 6162029d105eSJ. Bruce Fields 6163331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6164331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6165331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6166331818f1STrond Myklebust } 6167bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6168029d105eSJ. Bruce Fields if (status) 6169029d105eSJ. Bruce Fields goto out; 6170bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61719b7b9fccSAndy Adamson if (status) 61729b7b9fccSAndy Adamson goto out; 6173bf269551SChuck Lever status = decode_putfh(xdr); 6174029d105eSJ. Bruce Fields if (status) 6175029d105eSJ. Bruce Fields goto out; 6176bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6177029d105eSJ. Bruce Fields 6178029d105eSJ. Bruce Fields out: 6179029d105eSJ. Bruce Fields return status; 6180029d105eSJ. Bruce Fields } 6181029d105eSJ. Bruce Fields 6182029d105eSJ. Bruce Fields /* 61831da177e4SLinus Torvalds * Decode CLOSE response 61841da177e4SLinus Torvalds */ 6185bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6186bf269551SChuck Lever struct nfs_closeres *res) 61871da177e4SLinus Torvalds { 61881da177e4SLinus Torvalds struct compound_hdr hdr; 61891da177e4SLinus Torvalds int status; 61901da177e4SLinus Torvalds 6191bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61921da177e4SLinus Torvalds if (status) 61931da177e4SLinus Torvalds goto out; 6194bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61959b7b9fccSAndy Adamson if (status) 61969b7b9fccSAndy Adamson goto out; 6197bf269551SChuck Lever status = decode_putfh(xdr); 61981da177e4SLinus Torvalds if (status) 61991da177e4SLinus Torvalds goto out; 6200bf269551SChuck Lever status = decode_close(xdr, res); 6201516a6af6STrond Myklebust if (status != 0) 6202516a6af6STrond Myklebust goto out; 6203516a6af6STrond Myklebust /* 6204516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6205516a6af6STrond Myklebust * in which case the getattr call will fail with 6206516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6207516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6208516a6af6STrond Myklebust */ 62096926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62101da177e4SLinus Torvalds out: 62111da177e4SLinus Torvalds return status; 62121da177e4SLinus Torvalds } 62131da177e4SLinus Torvalds 62141da177e4SLinus Torvalds /* 62151da177e4SLinus Torvalds * Decode OPEN response 62161da177e4SLinus Torvalds */ 6217bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6218bf269551SChuck Lever struct nfs_openres *res) 62191da177e4SLinus Torvalds { 62201da177e4SLinus Torvalds struct compound_hdr hdr; 62211da177e4SLinus Torvalds int status; 62221da177e4SLinus Torvalds 6223bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62241da177e4SLinus Torvalds if (status) 62251da177e4SLinus Torvalds goto out; 6226bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62279b7b9fccSAndy Adamson if (status) 62289b7b9fccSAndy Adamson goto out; 6229bf269551SChuck Lever status = decode_putfh(xdr); 62301da177e4SLinus Torvalds if (status) 62311da177e4SLinus Torvalds goto out; 6232bf269551SChuck Lever status = decode_open(xdr, res); 62331da177e4SLinus Torvalds if (status) 62341da177e4SLinus Torvalds goto out; 623501913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 623601913b49SWeston Andros Adamson if (status) 62371da177e4SLinus Torvalds goto out; 6238ae2bb032SWeston Andros Adamson if (res->access_request) 62396168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 624090ff0c54STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62411da177e4SLinus Torvalds out: 62421da177e4SLinus Torvalds return status; 62431da177e4SLinus Torvalds } 62441da177e4SLinus Torvalds 62451da177e4SLinus Torvalds /* 62461da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 62471da177e4SLinus Torvalds */ 6248bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6249bf269551SChuck Lever struct xdr_stream *xdr, 6250bf269551SChuck Lever struct nfs_open_confirmres *res) 62511da177e4SLinus Torvalds { 62521da177e4SLinus Torvalds struct compound_hdr hdr; 62531da177e4SLinus Torvalds int status; 62541da177e4SLinus Torvalds 6255bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62561da177e4SLinus Torvalds if (status) 62571da177e4SLinus Torvalds goto out; 6258bf269551SChuck Lever status = decode_putfh(xdr); 62591da177e4SLinus Torvalds if (status) 62601da177e4SLinus Torvalds goto out; 6261bf269551SChuck Lever status = decode_open_confirm(xdr, res); 62621da177e4SLinus Torvalds out: 62631da177e4SLinus Torvalds return status; 62641da177e4SLinus Torvalds } 62651da177e4SLinus Torvalds 62661da177e4SLinus Torvalds /* 62671da177e4SLinus Torvalds * Decode OPEN response 62681da177e4SLinus Torvalds */ 6269bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6270bf269551SChuck Lever struct xdr_stream *xdr, 6271bf269551SChuck Lever struct nfs_openres *res) 62721da177e4SLinus Torvalds { 62731da177e4SLinus Torvalds struct compound_hdr hdr; 62741da177e4SLinus Torvalds int status; 62751da177e4SLinus Torvalds 6276bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62771da177e4SLinus Torvalds if (status) 62781da177e4SLinus Torvalds goto out; 6279bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62809b7b9fccSAndy Adamson if (status) 62819b7b9fccSAndy Adamson goto out; 6282bf269551SChuck Lever status = decode_putfh(xdr); 62831da177e4SLinus Torvalds if (status) 62841da177e4SLinus Torvalds goto out; 6285bf269551SChuck Lever status = decode_open(xdr, res); 6286864472e9STrond Myklebust if (status) 6287864472e9STrond Myklebust goto out; 6288ae2bb032SWeston Andros Adamson if (res->access_request) 62896168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 62906926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62911da177e4SLinus Torvalds out: 62921da177e4SLinus Torvalds return status; 62931da177e4SLinus Torvalds } 62941da177e4SLinus Torvalds 62951da177e4SLinus Torvalds /* 62961da177e4SLinus Torvalds * Decode SETATTR response 62971da177e4SLinus Torvalds */ 6298bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6299bf269551SChuck Lever struct xdr_stream *xdr, 6300bf269551SChuck Lever struct nfs_setattrres *res) 63011da177e4SLinus Torvalds { 63021da177e4SLinus Torvalds struct compound_hdr hdr; 63031da177e4SLinus Torvalds int status; 63041da177e4SLinus Torvalds 6305bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63061da177e4SLinus Torvalds if (status) 63071da177e4SLinus Torvalds goto out; 6308bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63099b7b9fccSAndy Adamson if (status) 63109b7b9fccSAndy Adamson goto out; 6311bf269551SChuck Lever status = decode_putfh(xdr); 63121da177e4SLinus Torvalds if (status) 63131da177e4SLinus Torvalds goto out; 6314bf269551SChuck Lever status = decode_setattr(xdr); 63151da177e4SLinus Torvalds if (status) 63161da177e4SLinus Torvalds goto out; 63176926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63181da177e4SLinus Torvalds out: 63191da177e4SLinus Torvalds return status; 63201da177e4SLinus Torvalds } 63211da177e4SLinus Torvalds 63221da177e4SLinus Torvalds /* 63231da177e4SLinus Torvalds * Decode LOCK response 63241da177e4SLinus Torvalds */ 6325bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6326bf269551SChuck Lever struct nfs_lock_res *res) 63271da177e4SLinus Torvalds { 63281da177e4SLinus Torvalds struct compound_hdr hdr; 63291da177e4SLinus Torvalds int status; 63301da177e4SLinus Torvalds 6331bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63321da177e4SLinus Torvalds if (status) 63331da177e4SLinus Torvalds goto out; 6334bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63359b7b9fccSAndy Adamson if (status) 63369b7b9fccSAndy Adamson goto out; 6337bf269551SChuck Lever status = decode_putfh(xdr); 63381da177e4SLinus Torvalds if (status) 63391da177e4SLinus Torvalds goto out; 6340bf269551SChuck Lever status = decode_lock(xdr, res); 63411da177e4SLinus Torvalds out: 63421da177e4SLinus Torvalds return status; 63431da177e4SLinus Torvalds } 63441da177e4SLinus Torvalds 63451da177e4SLinus Torvalds /* 63461da177e4SLinus Torvalds * Decode LOCKT response 63471da177e4SLinus Torvalds */ 6348bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6349bf269551SChuck Lever struct nfs_lockt_res *res) 63501da177e4SLinus Torvalds { 63511da177e4SLinus Torvalds struct compound_hdr hdr; 63521da177e4SLinus Torvalds int status; 63531da177e4SLinus Torvalds 6354bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63551da177e4SLinus Torvalds if (status) 63561da177e4SLinus Torvalds goto out; 6357bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63589b7b9fccSAndy Adamson if (status) 63599b7b9fccSAndy Adamson goto out; 6360bf269551SChuck Lever status = decode_putfh(xdr); 63611da177e4SLinus Torvalds if (status) 63621da177e4SLinus Torvalds goto out; 6363bf269551SChuck Lever status = decode_lockt(xdr, res); 63641da177e4SLinus Torvalds out: 63651da177e4SLinus Torvalds return status; 63661da177e4SLinus Torvalds } 63671da177e4SLinus Torvalds 63681da177e4SLinus Torvalds /* 63691da177e4SLinus Torvalds * Decode LOCKU response 63701da177e4SLinus Torvalds */ 6371bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6372bf269551SChuck Lever struct nfs_locku_res *res) 63731da177e4SLinus Torvalds { 63741da177e4SLinus Torvalds struct compound_hdr hdr; 63751da177e4SLinus Torvalds int status; 63761da177e4SLinus Torvalds 6377bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63781da177e4SLinus Torvalds if (status) 63791da177e4SLinus Torvalds goto out; 6380bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63819b7b9fccSAndy Adamson if (status) 63829b7b9fccSAndy Adamson goto out; 6383bf269551SChuck Lever status = decode_putfh(xdr); 63841da177e4SLinus Torvalds if (status) 63851da177e4SLinus Torvalds goto out; 6386bf269551SChuck Lever status = decode_locku(xdr, res); 63871da177e4SLinus Torvalds out: 63881da177e4SLinus Torvalds return status; 63891da177e4SLinus Torvalds } 63901da177e4SLinus Torvalds 6391bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6392bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6393d3c7b7ccSTrond Myklebust { 6394d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6395d3c7b7ccSTrond Myklebust int status; 6396d3c7b7ccSTrond Myklebust 6397bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6398d3c7b7ccSTrond Myklebust if (!status) 6399bf269551SChuck Lever status = decode_release_lockowner(xdr); 6400d3c7b7ccSTrond Myklebust return status; 6401d3c7b7ccSTrond Myklebust } 6402d3c7b7ccSTrond Myklebust 64031da177e4SLinus Torvalds /* 64041da177e4SLinus Torvalds * Decode READLINK response 64051da177e4SLinus Torvalds */ 6406bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6407bf269551SChuck Lever struct xdr_stream *xdr, 6408f50c7000SBenny Halevy struct nfs4_readlink_res *res) 64091da177e4SLinus Torvalds { 64101da177e4SLinus Torvalds struct compound_hdr hdr; 64111da177e4SLinus Torvalds int status; 64121da177e4SLinus Torvalds 6413bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64141da177e4SLinus Torvalds if (status) 64151da177e4SLinus Torvalds goto out; 6416bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64179b7b9fccSAndy Adamson if (status) 64189b7b9fccSAndy Adamson goto out; 6419bf269551SChuck Lever status = decode_putfh(xdr); 64201da177e4SLinus Torvalds if (status) 64211da177e4SLinus Torvalds goto out; 6422bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 64231da177e4SLinus Torvalds out: 64241da177e4SLinus Torvalds return status; 64251da177e4SLinus Torvalds } 64261da177e4SLinus Torvalds 64271da177e4SLinus Torvalds /* 64281da177e4SLinus Torvalds * Decode READDIR response 64291da177e4SLinus Torvalds */ 6430bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6431bf269551SChuck Lever struct nfs4_readdir_res *res) 64321da177e4SLinus Torvalds { 64331da177e4SLinus Torvalds struct compound_hdr hdr; 64341da177e4SLinus Torvalds int status; 64351da177e4SLinus Torvalds 6436bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64371da177e4SLinus Torvalds if (status) 64381da177e4SLinus Torvalds goto out; 6439bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64409b7b9fccSAndy Adamson if (status) 64419b7b9fccSAndy Adamson goto out; 6442bf269551SChuck Lever status = decode_putfh(xdr); 64431da177e4SLinus Torvalds if (status) 64441da177e4SLinus Torvalds goto out; 6445bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 64461da177e4SLinus Torvalds out: 64471da177e4SLinus Torvalds return status; 64481da177e4SLinus Torvalds } 64491da177e4SLinus Torvalds 64501da177e4SLinus Torvalds /* 64511da177e4SLinus Torvalds * Decode Read response 64521da177e4SLinus Torvalds */ 6453bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6454bf269551SChuck Lever struct nfs_readres *res) 64551da177e4SLinus Torvalds { 64561da177e4SLinus Torvalds struct compound_hdr hdr; 64571da177e4SLinus Torvalds int status; 64581da177e4SLinus Torvalds 6459bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64601da177e4SLinus Torvalds if (status) 64611da177e4SLinus Torvalds goto out; 6462bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64639b7b9fccSAndy Adamson if (status) 64649b7b9fccSAndy Adamson goto out; 6465bf269551SChuck Lever status = decode_putfh(xdr); 64661da177e4SLinus Torvalds if (status) 64671da177e4SLinus Torvalds goto out; 6468bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 64691da177e4SLinus Torvalds if (!status) 64701da177e4SLinus Torvalds status = res->count; 64711da177e4SLinus Torvalds out: 64721da177e4SLinus Torvalds return status; 64731da177e4SLinus Torvalds } 64741da177e4SLinus Torvalds 64751da177e4SLinus Torvalds /* 64761da177e4SLinus Torvalds * Decode WRITE response 64771da177e4SLinus Torvalds */ 6478bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6479bf269551SChuck Lever struct nfs_writeres *res) 64801da177e4SLinus Torvalds { 64811da177e4SLinus Torvalds struct compound_hdr hdr; 64821da177e4SLinus Torvalds int status; 64831da177e4SLinus Torvalds 6484bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64851da177e4SLinus Torvalds if (status) 64861da177e4SLinus Torvalds goto out; 6487bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64889b7b9fccSAndy Adamson if (status) 64899b7b9fccSAndy Adamson goto out; 6490bf269551SChuck Lever status = decode_putfh(xdr); 64911da177e4SLinus Torvalds if (status) 64921da177e4SLinus Torvalds goto out; 6493bf269551SChuck Lever status = decode_write(xdr, res); 64944f9838c7STrond Myklebust if (status) 64954f9838c7STrond Myklebust goto out; 64967ffd1064SFred Isaman if (res->fattr) 64976926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64981da177e4SLinus Torvalds if (!status) 64991da177e4SLinus Torvalds status = res->count; 65001da177e4SLinus Torvalds out: 65011da177e4SLinus Torvalds return status; 65021da177e4SLinus Torvalds } 65031da177e4SLinus Torvalds 65041da177e4SLinus Torvalds /* 65051da177e4SLinus Torvalds * Decode COMMIT response 65061da177e4SLinus Torvalds */ 6507bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 65080b7c0153SFred Isaman struct nfs_commitres *res) 65091da177e4SLinus Torvalds { 65101da177e4SLinus Torvalds struct compound_hdr hdr; 65111da177e4SLinus Torvalds int status; 65121da177e4SLinus Torvalds 6513bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65141da177e4SLinus Torvalds if (status) 65151da177e4SLinus Torvalds goto out; 6516bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65179b7b9fccSAndy Adamson if (status) 65189b7b9fccSAndy Adamson goto out; 6519bf269551SChuck Lever status = decode_putfh(xdr); 65201da177e4SLinus Torvalds if (status) 65211da177e4SLinus Torvalds goto out; 6522bf269551SChuck Lever status = decode_commit(xdr, res); 65231da177e4SLinus Torvalds out: 65241da177e4SLinus Torvalds return status; 65251da177e4SLinus Torvalds } 65261da177e4SLinus Torvalds 65271da177e4SLinus Torvalds /* 65288b173218SRicardo Labiaga * Decode FSINFO response 65291da177e4SLinus Torvalds */ 6530bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 65313dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 65321da177e4SLinus Torvalds { 65331da177e4SLinus Torvalds struct compound_hdr hdr; 65341da177e4SLinus Torvalds int status; 65351da177e4SLinus Torvalds 6536bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65371da177e4SLinus Torvalds if (!status) 6538bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65399b7b9fccSAndy Adamson if (!status) 6540bf269551SChuck Lever status = decode_putfh(xdr); 65411da177e4SLinus Torvalds if (!status) 6542bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 65431da177e4SLinus Torvalds return status; 65441da177e4SLinus Torvalds } 65451da177e4SLinus Torvalds 65461da177e4SLinus Torvalds /* 65478b173218SRicardo Labiaga * Decode PATHCONF response 65481da177e4SLinus Torvalds */ 6549bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6550d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 65511da177e4SLinus Torvalds { 65521da177e4SLinus Torvalds struct compound_hdr hdr; 65531da177e4SLinus Torvalds int status; 65541da177e4SLinus Torvalds 6555bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65561da177e4SLinus Torvalds if (!status) 6557bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65589b7b9fccSAndy Adamson if (!status) 6559bf269551SChuck Lever status = decode_putfh(xdr); 65601da177e4SLinus Torvalds if (!status) 6561bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 65621da177e4SLinus Torvalds return status; 65631da177e4SLinus Torvalds } 65641da177e4SLinus Torvalds 65651da177e4SLinus Torvalds /* 65668b173218SRicardo Labiaga * Decode STATFS response 65671da177e4SLinus Torvalds */ 6568bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 656924ad148aSBenny Halevy struct nfs4_statfs_res *res) 65701da177e4SLinus Torvalds { 65711da177e4SLinus Torvalds struct compound_hdr hdr; 65721da177e4SLinus Torvalds int status; 65731da177e4SLinus Torvalds 6574bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65751da177e4SLinus Torvalds if (!status) 6576bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65779b7b9fccSAndy Adamson if (!status) 6578bf269551SChuck Lever status = decode_putfh(xdr); 65791da177e4SLinus Torvalds if (!status) 6580bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 65811da177e4SLinus Torvalds return status; 65821da177e4SLinus Torvalds } 65831da177e4SLinus Torvalds 65841da177e4SLinus Torvalds /* 65858b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65861da177e4SLinus Torvalds */ 6587bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6588bf269551SChuck Lever struct xdr_stream *xdr, 6589bf269551SChuck Lever struct nfs4_server_caps_res *res) 65901da177e4SLinus Torvalds { 65911da177e4SLinus Torvalds struct compound_hdr hdr; 65921da177e4SLinus Torvalds int status; 65931da177e4SLinus Torvalds 6594bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65959b7b9fccSAndy Adamson if (status) 65969b7b9fccSAndy Adamson goto out; 6597bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65989b7b9fccSAndy Adamson if (status) 65991da177e4SLinus Torvalds goto out; 6600bf269551SChuck Lever status = decode_putfh(xdr); 6601bf269551SChuck Lever if (status) 66021da177e4SLinus Torvalds goto out; 6603bf269551SChuck Lever status = decode_server_caps(xdr, res); 66041da177e4SLinus Torvalds out: 66051da177e4SLinus Torvalds return status; 66061da177e4SLinus Torvalds } 66071da177e4SLinus Torvalds 66081da177e4SLinus Torvalds /* 66091da177e4SLinus Torvalds * Decode RENEW response 66101da177e4SLinus Torvalds */ 6611bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6612bf269551SChuck Lever void *__unused) 66131da177e4SLinus Torvalds { 66141da177e4SLinus Torvalds struct compound_hdr hdr; 66151da177e4SLinus Torvalds int status; 66161da177e4SLinus Torvalds 6617bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66181da177e4SLinus Torvalds if (!status) 6619bf269551SChuck Lever status = decode_renew(xdr); 66201da177e4SLinus Torvalds return status; 66211da177e4SLinus Torvalds } 66221da177e4SLinus Torvalds 66231da177e4SLinus Torvalds /* 66248b173218SRicardo Labiaga * Decode SETCLIENTID response 66251da177e4SLinus Torvalds */ 6626bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6627bf269551SChuck Lever struct xdr_stream *xdr, 6628bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 66291da177e4SLinus Torvalds { 66301da177e4SLinus Torvalds struct compound_hdr hdr; 66311da177e4SLinus Torvalds int status; 66321da177e4SLinus Torvalds 6633bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66341da177e4SLinus Torvalds if (!status) 6635bf269551SChuck Lever status = decode_setclientid(xdr, res); 66361da177e4SLinus Torvalds return status; 66371da177e4SLinus Torvalds } 66381da177e4SLinus Torvalds 66391da177e4SLinus Torvalds /* 66408b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 66411da177e4SLinus Torvalds */ 6642bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 664383ca7f5aSChuck Lever struct xdr_stream *xdr) 66441da177e4SLinus Torvalds { 66451da177e4SLinus Torvalds struct compound_hdr hdr; 66461da177e4SLinus Torvalds int status; 66471da177e4SLinus Torvalds 6648bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66491da177e4SLinus Torvalds if (!status) 6650bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 66511da177e4SLinus Torvalds return status; 66521da177e4SLinus Torvalds } 66531da177e4SLinus Torvalds 66541da177e4SLinus Torvalds /* 66558b173218SRicardo Labiaga * Decode DELEGRETURN response 66561da177e4SLinus Torvalds */ 6657bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6658bf269551SChuck Lever struct xdr_stream *xdr, 6659bf269551SChuck Lever struct nfs4_delegreturnres *res) 66601da177e4SLinus Torvalds { 66611da177e4SLinus Torvalds struct compound_hdr hdr; 66621da177e4SLinus Torvalds int status; 66631da177e4SLinus Torvalds 6664bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66659b7b9fccSAndy Adamson if (status) 66669b7b9fccSAndy Adamson goto out; 6667bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66689b7b9fccSAndy Adamson if (status) 6669fa178f29STrond Myklebust goto out; 6670bf269551SChuck Lever status = decode_putfh(xdr); 6671fa178f29STrond Myklebust if (status != 0) 6672fa178f29STrond Myklebust goto out; 6673e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6674556ae3bbSJeff Layton if (status != 0) 6675556ae3bbSJeff Layton goto out; 6676e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6677fa178f29STrond Myklebust out: 66781da177e4SLinus Torvalds return status; 66791da177e4SLinus Torvalds } 66801da177e4SLinus Torvalds 6681683b57b4STrond Myklebust /* 66828b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6683683b57b4STrond Myklebust */ 6684bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6685bf269551SChuck Lever struct xdr_stream *xdr, 668622958463SBenny Halevy struct nfs4_fs_locations_res *res) 6687683b57b4STrond Myklebust { 6688683b57b4STrond Myklebust struct compound_hdr hdr; 6689683b57b4STrond Myklebust int status; 6690683b57b4STrond Myklebust 6691bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66929b7b9fccSAndy Adamson if (status) 66939b7b9fccSAndy Adamson goto out; 6694bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66959b7b9fccSAndy Adamson if (status) 6696683b57b4STrond Myklebust goto out; 6697bf269551SChuck Lever status = decode_putfh(xdr); 6698bf269551SChuck Lever if (status) 6699683b57b4STrond Myklebust goto out; 6700bf269551SChuck Lever status = decode_lookup(xdr); 6701bf269551SChuck Lever if (status) 6702683b57b4STrond Myklebust goto out; 6703bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 67048b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 67058b7e3f49STrond Myklebust NULL, res->fs_locations, 67066926afd1STrond Myklebust res->fs_locations->server); 6707683b57b4STrond Myklebust out: 6708683b57b4STrond Myklebust return status; 6709683b57b4STrond Myklebust } 6710683b57b4STrond Myklebust 67115a5ea0d4SBryan Schumaker /* 67125a5ea0d4SBryan Schumaker * Decode SECINFO response 67135a5ea0d4SBryan Schumaker */ 67145a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 67155a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 67165a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 67175a5ea0d4SBryan Schumaker { 67185a5ea0d4SBryan Schumaker struct compound_hdr hdr; 67195a5ea0d4SBryan Schumaker int status; 67205a5ea0d4SBryan Schumaker 67215a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 67225a5ea0d4SBryan Schumaker if (status) 67235a5ea0d4SBryan Schumaker goto out; 67245a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 67255a5ea0d4SBryan Schumaker if (status) 67265a5ea0d4SBryan Schumaker goto out; 67275a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 67285a5ea0d4SBryan Schumaker if (status) 67295a5ea0d4SBryan Schumaker goto out; 67305a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 67315a5ea0d4SBryan Schumaker out: 67325a5ea0d4SBryan Schumaker return status; 67335a5ea0d4SBryan Schumaker } 67345a5ea0d4SBryan Schumaker 673599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 673699fe60d0SBenny Halevy /* 67377c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 67387c44f1aeSWeston Andros Adamson */ 67397c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 67407c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 67417c44f1aeSWeston Andros Adamson void *res) 67427c44f1aeSWeston Andros Adamson { 67437c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 67447c44f1aeSWeston Andros Adamson int status; 67457c44f1aeSWeston Andros Adamson 67467c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 67477c44f1aeSWeston Andros Adamson if (!status) 67487c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 67497c44f1aeSWeston Andros Adamson return status; 67507c44f1aeSWeston Andros Adamson } 67517c44f1aeSWeston Andros Adamson 67527c44f1aeSWeston Andros Adamson /* 67538b173218SRicardo Labiaga * Decode EXCHANGE_ID response 675499fe60d0SBenny Halevy */ 6755bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6756bf269551SChuck Lever struct xdr_stream *xdr, 675799fe60d0SBenny Halevy void *res) 675899fe60d0SBenny Halevy { 675999fe60d0SBenny Halevy struct compound_hdr hdr; 676099fe60d0SBenny Halevy int status; 676199fe60d0SBenny Halevy 6762bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 676399fe60d0SBenny Halevy if (!status) 6764bf269551SChuck Lever status = decode_exchange_id(xdr, res); 676599fe60d0SBenny Halevy return status; 676699fe60d0SBenny Halevy } 67672050f0ccSAndy Adamson 67682050f0ccSAndy Adamson /* 67698b173218SRicardo Labiaga * Decode CREATE_SESSION response 6770fc931582SAndy Adamson */ 6771bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6772bf269551SChuck Lever struct xdr_stream *xdr, 6773fc931582SAndy Adamson struct nfs41_create_session_res *res) 6774fc931582SAndy Adamson { 6775fc931582SAndy Adamson struct compound_hdr hdr; 6776fc931582SAndy Adamson int status; 6777fc931582SAndy Adamson 6778bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6779fc931582SAndy Adamson if (!status) 6780bf269551SChuck Lever status = decode_create_session(xdr, res); 6781fc931582SAndy Adamson return status; 6782fc931582SAndy Adamson } 6783fc931582SAndy Adamson 6784fc931582SAndy Adamson /* 67858b173218SRicardo Labiaga * Decode DESTROY_SESSION response 67860f3e66c6SAndy Adamson */ 6787bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6788bf269551SChuck Lever struct xdr_stream *xdr, 6789bf269551SChuck Lever void *res) 67900f3e66c6SAndy Adamson { 67910f3e66c6SAndy Adamson struct compound_hdr hdr; 67920f3e66c6SAndy Adamson int status; 67930f3e66c6SAndy Adamson 6794bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67950f3e66c6SAndy Adamson if (!status) 6796bf269551SChuck Lever status = decode_destroy_session(xdr, res); 67970f3e66c6SAndy Adamson return status; 67980f3e66c6SAndy Adamson } 67990f3e66c6SAndy Adamson 68000f3e66c6SAndy Adamson /* 680166245539STrond Myklebust * Decode DESTROY_CLIENTID response 680266245539STrond Myklebust */ 680366245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 680466245539STrond Myklebust struct xdr_stream *xdr, 680566245539STrond Myklebust void *res) 680666245539STrond Myklebust { 680766245539STrond Myklebust struct compound_hdr hdr; 680866245539STrond Myklebust int status; 680966245539STrond Myklebust 681066245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 681166245539STrond Myklebust if (!status) 681266245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 681366245539STrond Myklebust return status; 681466245539STrond Myklebust } 681566245539STrond Myklebust 681666245539STrond Myklebust /* 68178b173218SRicardo Labiaga * Decode SEQUENCE response 6818fc01cea9SAndy Adamson */ 6819bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6820bf269551SChuck Lever struct xdr_stream *xdr, 6821fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6822fc01cea9SAndy Adamson { 6823fc01cea9SAndy Adamson struct compound_hdr hdr; 6824fc01cea9SAndy Adamson int status; 6825fc01cea9SAndy Adamson 6826bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6827fc01cea9SAndy Adamson if (!status) 6828bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6829fc01cea9SAndy Adamson return status; 6830fc01cea9SAndy Adamson } 6831fc01cea9SAndy Adamson 6832fc01cea9SAndy Adamson /* 68338b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 68342050f0ccSAndy Adamson */ 6835bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6836bf269551SChuck Lever struct xdr_stream *xdr, 68372050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 68382050f0ccSAndy Adamson { 68392050f0ccSAndy Adamson struct compound_hdr hdr; 68402050f0ccSAndy Adamson int status; 68412050f0ccSAndy Adamson 6842bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68432050f0ccSAndy Adamson if (!status) 6844bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 68452050f0ccSAndy Adamson if (!status) 6846bf269551SChuck Lever status = decode_putrootfh(xdr); 68472050f0ccSAndy Adamson if (!status) 6848bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 68492050f0ccSAndy Adamson return status; 68502050f0ccSAndy Adamson } 685118019753SRicardo Labiaga 685218019753SRicardo Labiaga /* 685318019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 685418019753SRicardo Labiaga */ 6855bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6856bf269551SChuck Lever struct xdr_stream *xdr, 685718019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 685818019753SRicardo Labiaga { 685918019753SRicardo Labiaga struct compound_hdr hdr; 686018019753SRicardo Labiaga int status; 686118019753SRicardo Labiaga 6862bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 686318019753SRicardo Labiaga if (!status) 6864bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 686518019753SRicardo Labiaga if (!status) 6866bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 686718019753SRicardo Labiaga return status; 686818019753SRicardo Labiaga } 6869b1f69b75SAndy Adamson 6870b1f69b75SAndy Adamson /* 68717f11d8d3SAndy Adamson * Decode GETDEVICELIST response 68727f11d8d3SAndy Adamson */ 68737f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 68747f11d8d3SAndy Adamson struct xdr_stream *xdr, 68757f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 68767f11d8d3SAndy Adamson { 68777f11d8d3SAndy Adamson struct compound_hdr hdr; 68787f11d8d3SAndy Adamson int status; 68797f11d8d3SAndy Adamson 68807f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 68817f11d8d3SAndy Adamson 68827f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 68837f11d8d3SAndy Adamson if (status != 0) 68847f11d8d3SAndy Adamson goto out; 68857f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 68867f11d8d3SAndy Adamson if (status != 0) 68877f11d8d3SAndy Adamson goto out; 68887f11d8d3SAndy Adamson status = decode_putfh(xdr); 68897f11d8d3SAndy Adamson if (status != 0) 68907f11d8d3SAndy Adamson goto out; 68917f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 68927f11d8d3SAndy Adamson out: 68937f11d8d3SAndy Adamson return status; 68947f11d8d3SAndy Adamson } 68957f11d8d3SAndy Adamson 68967f11d8d3SAndy Adamson /* 6897b1f69b75SAndy Adamson * Decode GETDEVINFO response 6898b1f69b75SAndy Adamson */ 6899bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6900bf269551SChuck Lever struct xdr_stream *xdr, 6901b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6902b1f69b75SAndy Adamson { 6903b1f69b75SAndy Adamson struct compound_hdr hdr; 6904b1f69b75SAndy Adamson int status; 6905b1f69b75SAndy Adamson 6906bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6907b1f69b75SAndy Adamson if (status != 0) 6908b1f69b75SAndy Adamson goto out; 6909bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6910b1f69b75SAndy Adamson if (status != 0) 6911b1f69b75SAndy Adamson goto out; 6912bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6913b1f69b75SAndy Adamson out: 6914b1f69b75SAndy Adamson return status; 6915b1f69b75SAndy Adamson } 6916b1f69b75SAndy Adamson 6917b1f69b75SAndy Adamson /* 6918b1f69b75SAndy Adamson * Decode LAYOUTGET response 6919b1f69b75SAndy Adamson */ 6920bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6921bf269551SChuck Lever struct xdr_stream *xdr, 6922b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6923b1f69b75SAndy Adamson { 6924b1f69b75SAndy Adamson struct compound_hdr hdr; 6925b1f69b75SAndy Adamson int status; 6926b1f69b75SAndy Adamson 6927bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6928b1f69b75SAndy Adamson if (status) 6929b1f69b75SAndy Adamson goto out; 6930bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6931b1f69b75SAndy Adamson if (status) 6932b1f69b75SAndy Adamson goto out; 6933bf269551SChuck Lever status = decode_putfh(xdr); 6934b1f69b75SAndy Adamson if (status) 6935b1f69b75SAndy Adamson goto out; 6936bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6937b1f69b75SAndy Adamson out: 6938b1f69b75SAndy Adamson return status; 6939b1f69b75SAndy Adamson } 6940863a3c6cSAndy Adamson 6941863a3c6cSAndy Adamson /* 6942cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6943cbe82603SBenny Halevy */ 6944cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6945cbe82603SBenny Halevy struct xdr_stream *xdr, 6946cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6947cbe82603SBenny Halevy { 6948cbe82603SBenny Halevy struct compound_hdr hdr; 6949cbe82603SBenny Halevy int status; 6950cbe82603SBenny Halevy 6951cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6952cbe82603SBenny Halevy if (status) 6953cbe82603SBenny Halevy goto out; 6954cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6955cbe82603SBenny Halevy if (status) 6956cbe82603SBenny Halevy goto out; 6957cbe82603SBenny Halevy status = decode_putfh(xdr); 6958cbe82603SBenny Halevy if (status) 6959cbe82603SBenny Halevy goto out; 6960cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6961cbe82603SBenny Halevy out: 6962cbe82603SBenny Halevy return status; 6963cbe82603SBenny Halevy } 6964cbe82603SBenny Halevy 6965cbe82603SBenny Halevy /* 6966863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6967863a3c6cSAndy Adamson */ 6968863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6969863a3c6cSAndy Adamson struct xdr_stream *xdr, 6970863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6971863a3c6cSAndy Adamson { 6972863a3c6cSAndy Adamson struct compound_hdr hdr; 6973863a3c6cSAndy Adamson int status; 6974863a3c6cSAndy Adamson 6975863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6976863a3c6cSAndy Adamson if (status) 6977863a3c6cSAndy Adamson goto out; 6978863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6979863a3c6cSAndy Adamson if (status) 6980863a3c6cSAndy Adamson goto out; 6981863a3c6cSAndy Adamson status = decode_putfh(xdr); 6982863a3c6cSAndy Adamson if (status) 6983863a3c6cSAndy Adamson goto out; 6984863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6985863a3c6cSAndy Adamson if (status) 6986863a3c6cSAndy Adamson goto out; 69876926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6988863a3c6cSAndy Adamson out: 6989863a3c6cSAndy Adamson return status; 6990863a3c6cSAndy Adamson } 6991fca78d6dSBryan Schumaker 6992fca78d6dSBryan Schumaker /* 6993fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 6994fca78d6dSBryan Schumaker */ 6995fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 6996fca78d6dSBryan Schumaker struct xdr_stream *xdr, 6997fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 6998fca78d6dSBryan Schumaker { 6999fca78d6dSBryan Schumaker struct compound_hdr hdr; 7000fca78d6dSBryan Schumaker int status; 7001fca78d6dSBryan Schumaker 7002fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7003fca78d6dSBryan Schumaker if (status) 7004fca78d6dSBryan Schumaker goto out; 7005fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7006fca78d6dSBryan Schumaker if (status) 7007fca78d6dSBryan Schumaker goto out; 7008fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7009fca78d6dSBryan Schumaker if (status) 7010fca78d6dSBryan Schumaker goto out; 701131e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7012fca78d6dSBryan Schumaker out: 7013fca78d6dSBryan Schumaker return status; 7014fca78d6dSBryan Schumaker } 70157d974794SBryan Schumaker 70167d974794SBryan Schumaker /* 70177d974794SBryan Schumaker * Decode TEST_STATEID response 70187d974794SBryan Schumaker */ 70197d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 70207d974794SBryan Schumaker struct xdr_stream *xdr, 70217d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 70227d974794SBryan Schumaker { 70237d974794SBryan Schumaker struct compound_hdr hdr; 70247d974794SBryan Schumaker int status; 70257d974794SBryan Schumaker 70267d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70277d974794SBryan Schumaker if (status) 70287d974794SBryan Schumaker goto out; 70297d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70307d974794SBryan Schumaker if (status) 70317d974794SBryan Schumaker goto out; 70327d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 70337d974794SBryan Schumaker out: 70347d974794SBryan Schumaker return status; 70357d974794SBryan Schumaker } 70369aeda35fSBryan Schumaker 70379aeda35fSBryan Schumaker /* 70389aeda35fSBryan Schumaker * Decode FREE_STATEID response 70399aeda35fSBryan Schumaker */ 70409aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 70419aeda35fSBryan Schumaker struct xdr_stream *xdr, 70429aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 70439aeda35fSBryan Schumaker { 70449aeda35fSBryan Schumaker struct compound_hdr hdr; 70459aeda35fSBryan Schumaker int status; 70469aeda35fSBryan Schumaker 70479aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70489aeda35fSBryan Schumaker if (status) 70499aeda35fSBryan Schumaker goto out; 70509aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70519aeda35fSBryan Schumaker if (status) 70529aeda35fSBryan Schumaker goto out; 70539aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 70549aeda35fSBryan Schumaker out: 70559aeda35fSBryan Schumaker return status; 70569aeda35fSBryan Schumaker } 705799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 705899fe60d0SBenny Halevy 7059573c4e1eSChuck Lever /** 7060573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7061573c4e1eSChuck Lever * the local page cache. 7062573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7063573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7064573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7065573c4e1eSChuck Lever * 7066573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7067573c4e1eSChuck Lever * returned. 7068573c4e1eSChuck Lever * 7069573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7070573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7071573c4e1eSChuck Lever * on a directory already in our cache. 7072573c4e1eSChuck Lever */ 7073573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7074573c4e1eSChuck Lever int plus) 70751da177e4SLinus Torvalds { 7076256e48bbSTrond Myklebust unsigned int savep; 7077dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 70781da177e4SLinus Torvalds uint32_t len; 7079babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7080babddc72SBryan Schumaker if (unlikely(!p)) 7081babddc72SBryan Schumaker goto out_overflow; 7082c08e76d0SChuck Lever if (*p == xdr_zero) { 7083babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7084babddc72SBryan Schumaker if (unlikely(!p)) 7085babddc72SBryan Schumaker goto out_overflow; 7086c08e76d0SChuck Lever if (*p == xdr_zero) 7087573c4e1eSChuck Lever return -EAGAIN; 70881da177e4SLinus Torvalds entry->eof = 1; 7089573c4e1eSChuck Lever return -EBADCOOKIE; 70901da177e4SLinus Torvalds } 70911da177e4SLinus Torvalds 7092babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7093babddc72SBryan Schumaker if (unlikely(!p)) 7094babddc72SBryan Schumaker goto out_overflow; 70951da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 70961da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7097c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7098babddc72SBryan Schumaker 70999af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7100babddc72SBryan Schumaker if (unlikely(!p)) 7101babddc72SBryan Schumaker goto out_overflow; 71021da177e4SLinus Torvalds entry->name = (const char *) p; 71031da177e4SLinus Torvalds 71041da177e4SLinus Torvalds /* 71051da177e4SLinus Torvalds * In case the server doesn't return an inode number, 71061da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 71071da177e4SLinus Torvalds * since glibc seems to choke on it...) 71081da177e4SLinus Torvalds */ 71091da177e4SLinus Torvalds entry->ino = 1; 71104f082222STrond Myklebust entry->fattr->valid = 0; 71111da177e4SLinus Torvalds 71129af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7113babddc72SBryan Schumaker goto out_overflow; 71149af8c222STrond Myklebust 7115256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7116babddc72SBryan Schumaker goto out_overflow; 71179af8c222STrond Myklebust 7118573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 71198b7e3f49STrond Myklebust NULL, entry->server) < 0) 7120babddc72SBryan Schumaker goto out_overflow; 712128331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 712228331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 712328331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 712482f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 71259af8c222STrond Myklebust 71260b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 71270b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 71280b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 71290b26a0bfSTrond Myklebust 7130573c4e1eSChuck Lever return 0; 7131babddc72SBryan Schumaker 7132babddc72SBryan Schumaker out_overflow: 7133babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7134573c4e1eSChuck Lever return -EAGAIN; 71351da177e4SLinus Torvalds } 71361da177e4SLinus Torvalds 71371da177e4SLinus Torvalds /* 71381da177e4SLinus Torvalds * We need to translate between nfs status return values and 71391da177e4SLinus Torvalds * the local errno values which may not be the same. 71401da177e4SLinus Torvalds */ 71411da177e4SLinus Torvalds static struct { 71421da177e4SLinus Torvalds int stat; 71431da177e4SLinus Torvalds int errno; 71441da177e4SLinus Torvalds } nfs_errtbl[] = { 71451da177e4SLinus Torvalds { NFS4_OK, 0 }, 7146856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7147856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7148856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7149856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7150856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7151856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7152856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7153856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7154856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7155856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7156856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7157856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7158856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7159856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7160856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7161856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7162856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7163856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7164856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7165856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7166856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7167856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7168fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7169856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7170856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7171856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7172856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7173856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7174856dff3dSBenny Halevy { -1, -EIO } 71751da177e4SLinus Torvalds }; 71761da177e4SLinus Torvalds 71771da177e4SLinus Torvalds /* 71781da177e4SLinus Torvalds * Convert an NFS error code to a local one. 71791da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 71801da177e4SLinus Torvalds */ 71811da177e4SLinus Torvalds static int 71820a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 71831da177e4SLinus Torvalds { 71841da177e4SLinus Torvalds int i; 71851da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 71861da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 71871da177e4SLinus Torvalds return nfs_errtbl[i].errno; 71881da177e4SLinus Torvalds } 71891da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 71901da177e4SLinus Torvalds /* The server is looney tunes. */ 7191fdcb4577STrond Myklebust return -EREMOTEIO; 71921da177e4SLinus Torvalds } 71931da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 71941da177e4SLinus Torvalds * handle it. 71951da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 71961da177e4SLinus Torvalds * not conflict with native Linux error codes. 71971da177e4SLinus Torvalds */ 7198856dff3dSBenny Halevy return -stat; 71991da177e4SLinus Torvalds } 72001da177e4SLinus Torvalds 72011da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 72021da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 72031da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 72049f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7205bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 72062bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 72072bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7208cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7209cc0175c1SChuck Lever .p_name = #proc, \ 72101da177e4SLinus Torvalds } 72111da177e4SLinus Torvalds 72121da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 72131da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 72141da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 72151da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 72161da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 72171da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 72181da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 72191da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 72201da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 72211da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 72221da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 72231da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 72241da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 72251da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 72261da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 72271da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 72281da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 72291da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 72301da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 72311da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 72321da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 72331da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 72341da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 72351da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 72361da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 72371da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 72381da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 72391da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 72401da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 72411da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 72421da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 72431da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7244029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 724523ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7246683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7247d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 72485a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 724999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 725099fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7251fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 72520f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7253fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 72542050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 725518019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7256b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7257b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7258863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7259cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7260fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 72617d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 72629aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 72637f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 7264ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7265ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 726666245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 726799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 72681da177e4SLinus Torvalds }; 72691da177e4SLinus Torvalds 7270a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 72711da177e4SLinus Torvalds .number = 4, 7272e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 72731da177e4SLinus Torvalds .procs = nfs4_procedures 72741da177e4SLinus Torvalds }; 72751da177e4SLinus Torvalds 72761da177e4SLinus Torvalds /* 72771da177e4SLinus Torvalds * Local variables: 72781da177e4SLinus Torvalds * c-basic-offset: 8 72791da177e4SLinus Torvalds * End: 72801da177e4SLinus Torvalds */ 7281