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); 856f1c097beSAndy Adamson 857f1c097beSAndy Adamson const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH + 858f1c097beSAndy Adamson compound_decode_hdr_maxsz + 859f1c097beSAndy Adamson decode_sequence_maxsz) * 860f1c097beSAndy Adamson XDR_UNIT); 861f1c097beSAndy Adamson EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead); 86299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8631da177e4SLinus Torvalds 864bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 865bca79478STrond Myklebust [NF4BAD] = 0, 866bca79478STrond Myklebust [NF4REG] = S_IFREG, 867bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 868bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 869bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 870bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 871bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 872bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 873bca79478STrond Myklebust [NF4ATTRDIR] = 0, 874bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8751da177e4SLinus Torvalds }; 8761da177e4SLinus Torvalds 8771da177e4SLinus Torvalds struct compound_hdr { 8781da177e4SLinus Torvalds int32_t status; 8791da177e4SLinus Torvalds uint32_t nops; 880d017931cSAndy Adamson __be32 * nops_p; 8811da177e4SLinus Torvalds uint32_t taglen; 8821da177e4SLinus Torvalds char * tag; 8830c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 88466cc0429SBenny Halevy u32 minorversion; 8851da177e4SLinus Torvalds }; 8861da177e4SLinus Torvalds 88713c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 88813c65ce9SBenny Halevy { 88913c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 89013c65ce9SBenny Halevy BUG_ON(!p); 89113c65ce9SBenny Halevy return p; 89213c65ce9SBenny Halevy } 8931da177e4SLinus Torvalds 894cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 895cb17e556STrond Myklebust { 896cb17e556STrond Myklebust __be32 *p; 897cb17e556STrond Myklebust 898cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 899cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 900cb17e556STrond Myklebust } 901cb17e556STrond Myklebust 9021da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9031da177e4SLinus Torvalds { 9048687b63aSAl Viro __be32 *p; 9051da177e4SLinus Torvalds 9066fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 9071da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 9081da177e4SLinus Torvalds } 9091da177e4SLinus Torvalds 9104ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9114ade9821STrond Myklebust { 9124ade9821STrond Myklebust __be32 *p; 9134ade9821STrond Myklebust 9144ade9821STrond Myklebust p = reserve_space(xdr, 4); 9154ade9821STrond Myklebust *p = cpu_to_be32(n); 9164ade9821STrond Myklebust } 9174ade9821STrond Myklebust 918ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 919ff2eb681STrond Myklebust { 920ff2eb681STrond Myklebust __be32 *p; 921ff2eb681STrond Myklebust 922ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 923ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 924ff2eb681STrond Myklebust } 925ff2eb681STrond Myklebust 9264ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9274ade9821STrond Myklebust const struct nfs_seqid *seqid) 9284ade9821STrond Myklebust { 9294ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 9304ade9821STrond Myklebust } 9314ade9821STrond Myklebust 9320c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9330c4e8c18SBenny Halevy struct rpc_rqst *req, 9340c4e8c18SBenny Halevy struct compound_hdr *hdr) 9351da177e4SLinus Torvalds { 9368687b63aSAl Viro __be32 *p; 937a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9380c4e8c18SBenny Halevy 9390c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9400c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9410c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9420c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9431da177e4SLinus Torvalds 9447fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 9456fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9466fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 947e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 948d017931cSAndy Adamson hdr->nops_p = p; 94934558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 950d017931cSAndy Adamson } 951d017931cSAndy Adamson 952ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 953ab19b481STrond Myklebust uint32_t replen, 954ab19b481STrond Myklebust struct compound_hdr *hdr) 955ab19b481STrond Myklebust { 956ab19b481STrond Myklebust encode_uint32(xdr, op); 957ab19b481STrond Myklebust hdr->nops++; 958ab19b481STrond Myklebust hdr->replen += replen; 959ab19b481STrond Myklebust } 960ab19b481STrond Myklebust 961d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 962d017931cSAndy Adamson { 9637fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 964d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9651da177e4SLinus Torvalds } 9661da177e4SLinus Torvalds 967ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 968ea9d23f5STrond Myklebust { 9692d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 970ea9d23f5STrond Myklebust } 971ea9d23f5STrond Myklebust 9721da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9731da177e4SLinus Torvalds { 974cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 9751da177e4SLinus Torvalds } 9761da177e4SLinus Torvalds 977cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9781da177e4SLinus Torvalds { 9791da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9801da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9811da177e4SLinus Torvalds int owner_namelen = 0; 9821da177e4SLinus Torvalds int owner_grouplen = 0; 9838687b63aSAl Viro __be32 *p; 9848687b63aSAl Viro __be32 *q; 9851da177e4SLinus Torvalds int len; 9861da177e4SLinus Torvalds uint32_t bmval0 = 0; 9871da177e4SLinus Torvalds uint32_t bmval1 = 0; 9881da177e4SLinus Torvalds 9891da177e4SLinus Torvalds /* 9901da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9911da177e4SLinus Torvalds * In the worst-case, this would be 9921da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9931da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 99423ec6965SJ. Bruce Fields * such as owner/group. 9951da177e4SLinus Torvalds */ 9961da177e4SLinus Torvalds len = 16; 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds /* Sigh */ 9991da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 10001da177e4SLinus Torvalds len += 8; 10011da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 10021da177e4SLinus Torvalds len += 4; 10031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 1004e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10051da177e4SLinus Torvalds if (owner_namelen < 0) { 1006fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1007e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 10081da177e4SLinus Torvalds /* XXX */ 10091da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10101da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10111da177e4SLinus Torvalds /* goto out; */ 10121da177e4SLinus Torvalds } 10131da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1016e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10171da177e4SLinus Torvalds if (owner_grouplen < 0) { 1018fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1019e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 10201da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10211da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10221da177e4SLinus Torvalds /* goto out; */ 10231da177e4SLinus Torvalds } 10241da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10251da177e4SLinus Torvalds } 10261da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 10271da177e4SLinus Torvalds len += 16; 10281da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 10291da177e4SLinus Torvalds len += 4; 10301da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 10311da177e4SLinus Torvalds len += 16; 10321da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 10331da177e4SLinus Torvalds len += 4; 103413c65ce9SBenny Halevy p = reserve_space(xdr, len); 10351da177e4SLinus Torvalds 10361da177e4SLinus Torvalds /* 10371da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 10381da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 10391da177e4SLinus Torvalds */ 1040e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 10411da177e4SLinus Torvalds q = p; 10421da177e4SLinus Torvalds p += 3; 10431da177e4SLinus Torvalds 10441da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 10451da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 1046b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 10471da177e4SLinus Torvalds } 10481da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10491da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1050e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10511da177e4SLinus Torvalds } 10521da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10531da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1054811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10551da177e4SLinus Torvalds } 10561da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10571da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1058811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10591da177e4SLinus Torvalds } 10601da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10611da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1062e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1063042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_atime.tv_sec); 1064d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10651da177e4SLinus Torvalds } 10661da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10671da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1068e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10691da177e4SLinus Torvalds } 10701da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10711da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1072e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1073042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_mtime.tv_sec); 1074e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10751da177e4SLinus Torvalds } 10761da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10771da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1078e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10791da177e4SLinus Torvalds } 10801da177e4SLinus Torvalds 10811da177e4SLinus Torvalds /* 10821da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10831da177e4SLinus Torvalds */ 10841da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1085f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10861da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10871da177e4SLinus Torvalds BUG(); 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10901da177e4SLinus Torvalds *q++ = htonl(bmval0); 10911da177e4SLinus Torvalds *q++ = htonl(bmval1); 109234558513SBenny Halevy *q = htonl(len); 10931da177e4SLinus Torvalds 10941da177e4SLinus Torvalds /* out: */ 10951da177e4SLinus Torvalds } 10961da177e4SLinus Torvalds 1097cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10981da177e4SLinus Torvalds { 1099475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1100475d4ba0STrond Myklebust encode_uint32(xdr, access); 11011da177e4SLinus Torvalds } 11021da177e4SLinus Torvalds 1103cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11041da177e4SLinus Torvalds { 1105ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11064ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1107ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 11081da177e4SLinus Torvalds } 11091da177e4SLinus Torvalds 11100b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11111da177e4SLinus Torvalds { 11128687b63aSAl Viro __be32 *p; 11131da177e4SLinus Torvalds 1114475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1115475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1116b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 111734558513SBenny Halevy *p = cpu_to_be32(args->count); 11181da177e4SLinus Torvalds } 11191da177e4SLinus Torvalds 1120cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11211da177e4SLinus Torvalds { 11228687b63aSAl Viro __be32 *p; 11231da177e4SLinus Torvalds 1124475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1125475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11261da177e4SLinus Torvalds 11271da177e4SLinus Torvalds switch (create->ftype) { 11281da177e4SLinus Torvalds case NF4LNK: 112913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 113034558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 113194a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11321da177e4SLinus Torvalds break; 11331da177e4SLinus Torvalds 11341da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 113513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1136e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 113734558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11381da177e4SLinus Torvalds break; 11391da177e4SLinus Torvalds 11401da177e4SLinus Torvalds default: 11411da177e4SLinus Torvalds break; 11421da177e4SLinus Torvalds } 11431da177e4SLinus Torvalds 1144811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1145cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11461da177e4SLinus Torvalds } 11471da177e4SLinus Torvalds 1148cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11491da177e4SLinus Torvalds { 11508687b63aSAl Viro __be32 *p; 11511da177e4SLinus Torvalds 1152475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1153475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1154e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 115534558513SBenny Halevy *p = cpu_to_be32(bitmap); 11561da177e4SLinus Torvalds } 11571da177e4SLinus Torvalds 1158cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11591da177e4SLinus Torvalds { 11608687b63aSAl Viro __be32 *p; 11611da177e4SLinus Torvalds 1162475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1163475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1164e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1165e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 116634558513SBenny Halevy *p = cpu_to_be32(bm1); 11671da177e4SLinus Torvalds } 11681da177e4SLinus Torvalds 1169dae100c2SFred Isaman static void 1170dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1171dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1172dae100c2SFred Isaman struct compound_hdr *hdr) 1173dae100c2SFred Isaman { 1174dae100c2SFred Isaman __be32 *p; 1175dae100c2SFred Isaman 1176ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1177dae100c2SFred Isaman if (bm2) { 1178dae100c2SFred Isaman p = reserve_space(xdr, 16); 1179dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1180dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1181dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1182dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1183dae100c2SFred Isaman } else if (bm1) { 1184dae100c2SFred Isaman p = reserve_space(xdr, 12); 1185dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1186dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1187dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1188dae100c2SFred Isaman } else { 1189dae100c2SFred Isaman p = reserve_space(xdr, 8); 1190dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1191dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1192dae100c2SFred Isaman } 1193dae100c2SFred Isaman } 1194dae100c2SFred Isaman 1195cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11961da177e4SLinus Torvalds { 1197cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1198d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11991da177e4SLinus Torvalds } 12001da177e4SLinus Torvalds 120188034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 12021549210fSTrond Myklebust const u32 *open_bitmap, 120388034c3dSAndy Adamson struct compound_hdr *hdr) 120488034c3dSAndy Adamson { 120588034c3dSAndy Adamson encode_getattr_three(xdr, 12061549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12071549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12081549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 120988034c3dSAndy Adamson hdr); 121088034c3dSAndy Adamson } 121188034c3dSAndy Adamson 1212cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12131da177e4SLinus Torvalds { 1214dae100c2SFred Isaman encode_getattr_three(xdr, 1215dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1216dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1217dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1218dae100c2SFred Isaman hdr); 12191da177e4SLinus Torvalds } 12201da177e4SLinus Torvalds 1221cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1222830b8e33SManoj Naik { 1223cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1224cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1225830b8e33SManoj Naik } 1226830b8e33SManoj Naik 1227cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12281da177e4SLinus Torvalds { 1229ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12301da177e4SLinus Torvalds } 12311da177e4SLinus Torvalds 1232cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12331da177e4SLinus Torvalds { 1234ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12356fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12361da177e4SLinus Torvalds } 12371da177e4SLinus Torvalds 1238911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1239911d1aafSTrond Myklebust { 1240f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1241911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1242911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1243911d1aafSTrond Myklebust } 1244911d1aafSTrond Myklebust 1245911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1246911d1aafSTrond Myklebust { 1247911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1248911d1aafSTrond Myklebust return ~(uint64_t)0; 1249911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1250911d1aafSTrond Myklebust } 1251911d1aafSTrond Myklebust 1252daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1253daccbdedSTrond Myklebust { 1254daccbdedSTrond Myklebust __be32 *p; 1255daccbdedSTrond Myklebust 1256d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1257daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1258d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1259daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1260d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1261daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1262daccbdedSTrond Myklebust } 1263daccbdedSTrond Myklebust 12641da177e4SLinus Torvalds /* 12651da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12661da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12671da177e4SLinus Torvalds */ 1268cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12691da177e4SLinus Torvalds { 12708687b63aSAl Viro __be32 *p; 12711da177e4SLinus Torvalds 1272475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1273475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1274e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1275e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1276b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1277b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 127834558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1279911d1aafSTrond Myklebust if (args->new_lock_owner){ 12804ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1281ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->open_stateid); 12824ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1283daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12841da177e4SLinus Torvalds } 12851da177e4SLinus Torvalds else { 1286ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->lock_stateid); 12874ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 12881da177e4SLinus Torvalds } 12891da177e4SLinus Torvalds } 12901da177e4SLinus Torvalds 1291cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12921da177e4SLinus Torvalds { 12938687b63aSAl Viro __be32 *p; 12941da177e4SLinus Torvalds 1295475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1296475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1297e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1298b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1299b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1300daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13011da177e4SLinus Torvalds } 13021da177e4SLinus Torvalds 1303cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13041da177e4SLinus Torvalds { 13058687b63aSAl Viro __be32 *p; 13061da177e4SLinus Torvalds 1307475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1308475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13094ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1310ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 1311ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1312b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 131334558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13141da177e4SLinus Torvalds } 13151da177e4SLinus Torvalds 1316d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1317d3c7b7ccSTrond Myklebust { 1318ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1319d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1320d3c7b7ccSTrond Myklebust } 1321d3c7b7ccSTrond Myklebust 1322cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13231da177e4SLinus Torvalds { 1324ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13256fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13261da177e4SLinus Torvalds } 13271da177e4SLinus Torvalds 1328dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13291da177e4SLinus Torvalds { 13308687b63aSAl Viro __be32 *p; 13311da177e4SLinus Torvalds 133213c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1333dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13341da177e4SLinus Torvalds case FMODE_READ: 1335e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13361da177e4SLinus Torvalds break; 13371da177e4SLinus Torvalds case FMODE_WRITE: 1338e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13391da177e4SLinus Torvalds break; 13401da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1341e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13421da177e4SLinus Torvalds break; 13431da177e4SLinus Torvalds default: 1344e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13451da177e4SLinus Torvalds } 134634558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13471da177e4SLinus Torvalds } 13481da177e4SLinus Torvalds 13491da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13501da177e4SLinus Torvalds { 13518687b63aSAl Viro __be32 *p; 13521da177e4SLinus Torvalds /* 13531da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13541da177e4SLinus Torvalds * owner 4 = 32 13551da177e4SLinus Torvalds */ 13564ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1357dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 135895b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1359b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 136095b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 136193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1362d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 136395b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 136495b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13651da177e4SLinus Torvalds } 13661da177e4SLinus Torvalds 13671da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13681da177e4SLinus Torvalds { 1369549b19ccSTrond Myklebust struct iattr dummy; 13708687b63aSAl Viro __be32 *p; 13711da177e4SLinus Torvalds 137213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 1373549b19ccSTrond Myklebust switch(arg->createmode) { 1374549b19ccSTrond Myklebust case NFS4_CREATE_UNCHECKED: 137534558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13761da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13771da177e4SLinus Torvalds break; 1378549b19ccSTrond Myklebust case NFS4_CREATE_GUARDED: 13794882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13804882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 1381549b19ccSTrond Myklebust break; 1382549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE: 1383549b19ccSTrond Myklebust *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 1384549b19ccSTrond Myklebust encode_nfs4_verifier(xdr, &arg->u.verifier); 1385549b19ccSTrond Myklebust break; 1386549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE4_1: 13874882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13884882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13894882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13904882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13914882ef72SAlexandros Batsakis } 13924882ef72SAlexandros Batsakis } 13931da177e4SLinus Torvalds 13941da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13951da177e4SLinus Torvalds { 13968687b63aSAl Viro __be32 *p; 13971da177e4SLinus Torvalds 139813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13991da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14001da177e4SLinus Torvalds case 0: 140134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14021da177e4SLinus Torvalds break; 14031da177e4SLinus Torvalds default: 140434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14051da177e4SLinus Torvalds encode_createmode(xdr, arg); 14061da177e4SLinus Torvalds } 14071da177e4SLinus Torvalds } 14081da177e4SLinus Torvalds 1409bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14101da177e4SLinus Torvalds { 14118687b63aSAl Viro __be32 *p; 14121da177e4SLinus Torvalds 141313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14141da177e4SLinus Torvalds switch (delegation_type) { 14151da177e4SLinus Torvalds case 0: 141634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14171da177e4SLinus Torvalds break; 14181da177e4SLinus Torvalds case FMODE_READ: 141934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14201da177e4SLinus Torvalds break; 14211da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 142234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14231da177e4SLinus Torvalds break; 14241da177e4SLinus Torvalds default: 14251da177e4SLinus Torvalds BUG(); 14261da177e4SLinus Torvalds } 14271da177e4SLinus Torvalds } 14281da177e4SLinus Torvalds 14291da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14301da177e4SLinus Torvalds { 14318687b63aSAl Viro __be32 *p; 14321da177e4SLinus Torvalds 143313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14351da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14361da177e4SLinus Torvalds } 14371da177e4SLinus Torvalds 1438bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14391da177e4SLinus Torvalds { 14408687b63aSAl Viro __be32 *p; 14411da177e4SLinus Torvalds 144213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14441da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14451da177e4SLinus Torvalds } 14461da177e4SLinus Torvalds 14471da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14481da177e4SLinus Torvalds { 14498687b63aSAl Viro __be32 *p; 14501da177e4SLinus Torvalds 1451ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1452ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1453ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14541da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14551da177e4SLinus Torvalds } 14561da177e4SLinus Torvalds 1457d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1458d9fc6619STrond Myklebust { 1459d9fc6619STrond Myklebust __be32 *p; 1460d9fc6619STrond Myklebust 1461d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1462d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1463d9fc6619STrond Myklebust } 1464d9fc6619STrond Myklebust 1465d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1466d9fc6619STrond Myklebust { 1467d9fc6619STrond Myklebust __be32 *p; 1468d9fc6619STrond Myklebust 1469d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1470d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1471d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1472d9fc6619STrond Myklebust } 1473d9fc6619STrond Myklebust 1474cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14751da177e4SLinus Torvalds { 1476ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 14771da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14781da177e4SLinus Torvalds encode_opentype(xdr, arg); 14791da177e4SLinus Torvalds switch (arg->claim) { 14801da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14811da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14821da177e4SLinus Torvalds break; 14831da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14841da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14851da177e4SLinus Torvalds break; 14861da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14871da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14881da177e4SLinus Torvalds break; 1489d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1490d9fc6619STrond Myklebust encode_claim_fh(xdr); 1491d9fc6619STrond Myklebust break; 1492d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1493d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1494d9fc6619STrond Myklebust break; 14951da177e4SLinus Torvalds default: 14961da177e4SLinus Torvalds BUG(); 14971da177e4SLinus Torvalds } 14981da177e4SLinus Torvalds } 14991da177e4SLinus Torvalds 1500cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15011da177e4SLinus Torvalds { 1502ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1503ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15044ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15051da177e4SLinus Torvalds } 15061da177e4SLinus Torvalds 1507cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15081da177e4SLinus Torvalds { 1509ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1510ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15114ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1512dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 15131da177e4SLinus Torvalds } 15141da177e4SLinus Torvalds 1515cf8cdbe5SAndy Adamson static void 1516d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15171da177e4SLinus Torvalds { 1518ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15196fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15201da177e4SLinus Torvalds } 15211da177e4SLinus Torvalds 1522cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15231da177e4SLinus Torvalds { 1524ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15251da177e4SLinus Torvalds } 15261da177e4SLinus Torvalds 1527cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15281da177e4SLinus Torvalds { 15298687b63aSAl Viro __be32 *p; 15301da177e4SLinus Torvalds 1531ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15329b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 15331da177e4SLinus Torvalds 153413c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1535b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 153634558513SBenny Halevy *p = cpu_to_be32(args->count); 15371da177e4SLinus Torvalds } 15381da177e4SLinus Torvalds 1539cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15401da177e4SLinus Torvalds { 154128331a46STrond Myklebust uint32_t attrs[2] = { 154228331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 154328331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 154428331a46STrond Myklebust }; 15456f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1546cd93710eSChuck Lever __be32 *p, verf[2]; 15471da177e4SLinus Torvalds 154882f2e547SBryan Schumaker if (readdir->plus) { 154982f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 155028331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 155182f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 155282f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 155382f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 155482f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15556f7a35bdSTrond Myklebust dircount >>= 1; 155682f2e547SBryan Schumaker } 155728331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 155828331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 155928331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15606f7a35bdSTrond Myklebust 1561475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1562ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1563cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1564cd93710eSChuck Lever p = reserve_space(xdr, 20); 15656f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15666f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15676f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 156882f2e547SBryan Schumaker 1569e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 157034558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1571cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 157244109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 157344109241SFred Isaman __func__, 1574eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1575cd93710eSChuck Lever verf[0], verf[1], 1576eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1577eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 15781da177e4SLinus Torvalds } 15791da177e4SLinus Torvalds 1580cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 15811da177e4SLinus Torvalds { 1582ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 15831da177e4SLinus Torvalds } 15841da177e4SLinus Torvalds 1585cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 15861da177e4SLinus Torvalds { 1587ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 15886fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 15891da177e4SLinus Torvalds } 15901da177e4SLinus Torvalds 1591cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 15921da177e4SLinus Torvalds { 1593ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1594811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1595811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 15961da177e4SLinus Torvalds } 15971da177e4SLinus Torvalds 1598bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1599bb4dae5eSChuck Lever struct compound_hdr *hdr) 16001da177e4SLinus Torvalds { 1601475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1602ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16031da177e4SLinus Torvalds } 16041da177e4SLinus Torvalds 1605cf8cdbe5SAndy Adamson static void 1606d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 160756ae19f3STrond Myklebust { 1608ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 160956ae19f3STrond Myklebust } 161056ae19f3STrond Myklebust 16119f06c719SChuck Lever static void 1612d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 161323ec6965SJ. Bruce Fields { 16148687b63aSAl Viro __be32 *p; 161523ec6965SJ. Bruce Fields 1616ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1617ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 161813c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1619e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 162034558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 162113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 162234558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 162323ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 162423ec6965SJ. Bruce Fields } 162523ec6965SJ. Bruce Fields 1626cf8cdbe5SAndy Adamson static void 1627d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16281da177e4SLinus Torvalds { 1629ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16301da177e4SLinus Torvalds } 16311da177e4SLinus Torvalds 1632cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16331da177e4SLinus Torvalds { 1634ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1635ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1636cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 16371da177e4SLinus Torvalds } 16381da177e4SLinus Torvalds 1639cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16401da177e4SLinus Torvalds { 16418687b63aSAl Viro __be32 *p; 16421da177e4SLinus Torvalds 164370019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1644cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16451da177e4SLinus Torvalds 16461da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 164713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 164834558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16491da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16501da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 165113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165234558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 16531da177e4SLinus Torvalds } 16541da177e4SLinus Torvalds 1655bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16561da177e4SLinus Torvalds { 1657475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1658475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1659ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1660cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 16611da177e4SLinus Torvalds } 16621da177e4SLinus Torvalds 1663cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 16641da177e4SLinus Torvalds { 16658687b63aSAl Viro __be32 *p; 16661da177e4SLinus Torvalds 1667ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 16689b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 16691da177e4SLinus Torvalds 167013c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1671b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1672e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 167334558513SBenny Halevy *p = cpu_to_be32(args->count); 16741da177e4SLinus Torvalds 16751da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 16761da177e4SLinus Torvalds } 16771da177e4SLinus Torvalds 1678cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16791da177e4SLinus Torvalds { 1680ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1681ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 16821da177e4SLinus Torvalds } 16839b7b9fccSAndy Adamson 16845a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16855a5ea0d4SBryan Schumaker { 1686ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 16876fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16885a5ea0d4SBryan Schumaker } 16895a5ea0d4SBryan Schumaker 169099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16919b7b9fccSAndy Adamson /* NFSv4.1 operations */ 16927c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 16937c44f1aeSWeston Andros Adamson struct nfs4_session *session, 16947c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 16957c44f1aeSWeston Andros Adamson { 16967c44f1aeSWeston Andros Adamson __be32 *p; 16977c44f1aeSWeston Andros Adamson 16987c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 16997c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 17007c44f1aeSWeston Andros Adamson encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17017c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 17027c44f1aeSWeston Andros Adamson *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH); 17037c44f1aeSWeston Andros Adamson *p = 0; /* use_conn_in_rdma_mode = False */ 17047c44f1aeSWeston Andros Adamson } 17057c44f1aeSWeston Andros Adamson 170699fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 170799fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 170899fe60d0SBenny Halevy struct compound_hdr *hdr) 170999fe60d0SBenny Halevy { 171099fe60d0SBenny Halevy __be32 *p; 1711d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1712db8ac8baSWeston Andros Adamson int len = 0; 171399fe60d0SBenny Halevy 171470019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1715cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 171699fe60d0SBenny Halevy 171799fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 171899fe60d0SBenny Halevy 171913c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1720e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1721e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1722db8ac8baSWeston Andros Adamson 1723db8ac8baSWeston Andros Adamson if (send_implementation_id && 1724db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1725db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1726d751f748SJim Rees <= sizeof(impl_name) + 1) 1727db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1728db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1729db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1730db8ac8baSWeston Andros Adamson 1731db8ac8baSWeston Andros Adamson if (len > 0) { 1732db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1733db8ac8baSWeston Andros Adamson 1734db8ac8baSWeston Andros Adamson encode_string(xdr, 1735db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1736db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1737db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1738db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1739db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1740db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1741db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1742db8ac8baSWeston Andros Adamson } else 1743db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 174499fe60d0SBenny Halevy } 1745fc931582SAndy Adamson 1746fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1747fc931582SAndy Adamson struct nfs41_create_session_args *args, 1748fc931582SAndy Adamson struct compound_hdr *hdr) 1749fc931582SAndy Adamson { 1750fc931582SAndy Adamson __be32 *p; 1751fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1752fc931582SAndy Adamson uint32_t len; 1753fc931582SAndy Adamson struct nfs_client *clp = args->client; 1754f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 17558e0d46e1SMike Sager u32 max_resp_sz_cached; 17568e0d46e1SMike Sager 17578e0d46e1SMike Sager /* 17588e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 17598e0d46e1SMike Sager * 2 is the verifier. 17608e0d46e1SMike Sager */ 17618e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 17628e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1763fc931582SAndy Adamson 1764fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1765fc931582SAndy Adamson clp->cl_ipaddr); 176642edd698SBenny Halevy 1767475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 1768475d4ba0STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12); 1769114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1770e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1771e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1772fc931582SAndy Adamson 1773fc931582SAndy Adamson /* Fore Channel */ 1774c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1775e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1776e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 17778e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1778e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1779e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1780e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1781fc931582SAndy Adamson 1782fc931582SAndy Adamson /* Back Channel */ 1783c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1784e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1785e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1786e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1787e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1788e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1789e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1790fc931582SAndy Adamson 1791e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1792e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1793e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1794fc931582SAndy Adamson 1795fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1796f092075dSChuck Lever *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */ 1797811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1798e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1799e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 180034558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1801fc931582SAndy Adamson } 18020f3e66c6SAndy Adamson 18030f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18040f3e66c6SAndy Adamson struct nfs4_session *session, 18050f3e66c6SAndy Adamson struct compound_hdr *hdr) 18060f3e66c6SAndy Adamson { 1807475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1808475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18090f3e66c6SAndy Adamson } 181018019753SRicardo Labiaga 181166245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 181266245539STrond Myklebust uint64_t clientid, 181366245539STrond Myklebust struct compound_hdr *hdr) 181466245539STrond Myklebust { 181566245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 181666245539STrond Myklebust encode_uint64(xdr, clientid); 181766245539STrond Myklebust } 181866245539STrond Myklebust 181918019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 182018019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 182118019753SRicardo Labiaga struct compound_hdr *hdr) 182218019753SRicardo Labiaga { 1823475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1824475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 182518019753SRicardo Labiaga } 182699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 182799fe60d0SBenny Halevy 18289b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18299b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18309b7b9fccSAndy Adamson struct compound_hdr *hdr) 18319b7b9fccSAndy Adamson { 18329b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18332b2fa717STrond Myklebust struct nfs4_session *session; 1834fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 18352b2fa717STrond Myklebust struct nfs4_slot *slot = args->sa_slot; 1836fc01cea9SAndy Adamson __be32 *p; 18379b7b9fccSAndy Adamson 18382b2fa717STrond Myklebust if (slot == NULL) 18399b7b9fccSAndy Adamson return; 18409b7b9fccSAndy Adamson 18412b2fa717STrond Myklebust tp = slot->table; 18422b2fa717STrond Myklebust session = tp->session; 1843fc01cea9SAndy Adamson 1844475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1845fc01cea9SAndy Adamson 1846fc01cea9SAndy Adamson /* 1847fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1848fc01cea9SAndy Adamson */ 1849fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1850fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1851fc01cea9SAndy Adamson __func__, 1852fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1853fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1854fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1855fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 18562b2fa717STrond Myklebust slot->seq_nr, slot->slot_nr, 1857fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1858475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 185993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1860e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 18612b2fa717STrond Myklebust *p++ = cpu_to_be32(slot->slot_nr); 1862e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 186334558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 18649b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 18659b7b9fccSAndy Adamson } 18669b7b9fccSAndy Adamson 1867b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1868b1f69b75SAndy Adamson static void 18697f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 18707f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 18717f11d8d3SAndy Adamson struct compound_hdr *hdr) 18727f11d8d3SAndy Adamson { 18737f11d8d3SAndy Adamson __be32 *p; 18747f11d8d3SAndy Adamson nfs4_verifier dummy = { 18757f11d8d3SAndy Adamson .data = "dummmmmy", 18767f11d8d3SAndy Adamson }; 18777f11d8d3SAndy Adamson 1878475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr); 1879475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 18807f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 18817f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 18827f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 18837f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 18847f11d8d3SAndy Adamson } 18857f11d8d3SAndy Adamson 18867f11d8d3SAndy Adamson static void 1887b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1888b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1889b1f69b75SAndy Adamson struct compound_hdr *hdr) 1890b1f69b75SAndy Adamson { 1891b1f69b75SAndy Adamson __be32 *p; 1892b1f69b75SAndy Adamson 1893475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 1894475d4ba0STrond Myklebust p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE); 1895b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1896b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1897b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1898f1c097beSAndy Adamson *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */ 1899b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1900b1f69b75SAndy Adamson } 1901b1f69b75SAndy Adamson 1902b1f69b75SAndy Adamson static void 1903b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1904b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1905b1f69b75SAndy Adamson struct compound_hdr *hdr) 1906b1f69b75SAndy Adamson { 1907b1f69b75SAndy Adamson __be32 *p; 1908b1f69b75SAndy Adamson 1909475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1910475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1911b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1912b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1913b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1914b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1915b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1916b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1917ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1918475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1919b1f69b75SAndy Adamson 1920b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1921b1f69b75SAndy Adamson __func__, 1922b1f69b75SAndy Adamson args->type, 1923b1f69b75SAndy Adamson args->range.iomode, 1924b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1925b1f69b75SAndy Adamson (unsigned long)args->range.length, 1926b1f69b75SAndy Adamson args->maxcount); 1927b1f69b75SAndy Adamson } 1928863a3c6cSAndy Adamson 1929863a3c6cSAndy Adamson static int 1930863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1931ac7db726SBenny Halevy struct inode *inode, 1932863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1933863a3c6cSAndy Adamson struct compound_hdr *hdr) 1934863a3c6cSAndy Adamson { 1935863a3c6cSAndy Adamson __be32 *p; 1936863a3c6cSAndy Adamson 1937863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1938863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1939863a3c6cSAndy Adamson 1940475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 1941475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1942863a3c6cSAndy Adamson /* Only whole file layouts */ 1943863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19443557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1945ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 1946ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1947ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1948863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1949863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1950863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1951863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1952ac7db726SBenny Halevy 1953ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 1954ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 1955ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 1956475d4ba0STrond Myklebust else 1957475d4ba0STrond Myklebust encode_uint32(xdr, 0); /* no layout-type payload */ 1958863a3c6cSAndy Adamson 1959863a3c6cSAndy Adamson return 0; 1960863a3c6cSAndy Adamson } 1961cbe82603SBenny Halevy 1962cbe82603SBenny Halevy static void 1963cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 1964cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 1965cbe82603SBenny Halevy struct compound_hdr *hdr) 1966cbe82603SBenny Halevy { 1967cbe82603SBenny Halevy __be32 *p; 1968cbe82603SBenny Halevy 1969475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 1970475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 1971cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 1972cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 1973cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 1974cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 1975ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1976cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 1977cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 1978cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 1979ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1980cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 198104a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 198204a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 198304a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 1984475d4ba0STrond Myklebust } else 1985475d4ba0STrond Myklebust encode_uint32(xdr, 0); 1986cbe82603SBenny Halevy } 1987fca78d6dSBryan Schumaker 1988fca78d6dSBryan Schumaker static int 1989fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 1990fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 1991fca78d6dSBryan Schumaker struct compound_hdr *hdr) 1992fca78d6dSBryan Schumaker { 1993475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 1994475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 1995fca78d6dSBryan Schumaker return 0; 1996fca78d6dSBryan Schumaker } 19977d974794SBryan Schumaker 19987d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 19997d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20007d974794SBryan Schumaker struct compound_hdr *hdr) 20017d974794SBryan Schumaker { 2002475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2003475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2004ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20057d974794SBryan Schumaker } 20069aeda35fSBryan Schumaker 20079aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20089aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20099aeda35fSBryan Schumaker struct compound_hdr *hdr) 20109aeda35fSBryan Schumaker { 2011ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 20127c1d5faeSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 20139aeda35fSBryan Schumaker } 2014b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2015b1f69b75SAndy Adamson 20161da177e4SLinus Torvalds /* 20171da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20181da177e4SLinus Torvalds */ 20191da177e4SLinus Torvalds 202066cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 202166cc0429SBenny Halevy { 202266cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 20232b2fa717STrond Myklebust 20242b2fa717STrond Myklebust if (args->sa_slot) 20252b2fa717STrond Myklebust return args->sa_slot->table->session->clp->cl_mvops->minor_version; 202666cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 202766cc0429SBenny Halevy return 0; 202866cc0429SBenny Halevy } 202966cc0429SBenny Halevy 20301da177e4SLinus Torvalds /* 20311da177e4SLinus Torvalds * Encode an ACCESS request 20321da177e4SLinus Torvalds */ 20339f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20349f06c719SChuck Lever const struct nfs4_accessargs *args) 20351da177e4SLinus Torvalds { 20361da177e4SLinus Torvalds struct compound_hdr hdr = { 203766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20381da177e4SLinus Torvalds }; 20391da177e4SLinus Torvalds 20409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20439f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 20449f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2045d017931cSAndy Adamson encode_nops(&hdr); 20461da177e4SLinus Torvalds } 20471da177e4SLinus Torvalds 20481da177e4SLinus Torvalds /* 20491da177e4SLinus Torvalds * Encode LOOKUP request 20501da177e4SLinus Torvalds */ 20519f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 20529f06c719SChuck Lever const struct nfs4_lookup_arg *args) 20531da177e4SLinus Torvalds { 20541da177e4SLinus Torvalds struct compound_hdr hdr = { 205566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20561da177e4SLinus Torvalds }; 20571da177e4SLinus Torvalds 20589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20609f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 20619f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 20629f06c719SChuck Lever encode_getfh(xdr, &hdr); 20639f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2064d017931cSAndy Adamson encode_nops(&hdr); 20651da177e4SLinus Torvalds } 20661da177e4SLinus Torvalds 20671da177e4SLinus Torvalds /* 20681da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 20691da177e4SLinus Torvalds */ 20709f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 20719f06c719SChuck Lever struct xdr_stream *xdr, 20729f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 20731da177e4SLinus Torvalds { 20741da177e4SLinus Torvalds struct compound_hdr hdr = { 207566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20761da177e4SLinus Torvalds }; 20771da177e4SLinus Torvalds 20789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20799f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20809f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 20819f06c719SChuck Lever encode_getfh(xdr, &hdr); 20829f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2083d017931cSAndy Adamson encode_nops(&hdr); 20841da177e4SLinus Torvalds } 20851da177e4SLinus Torvalds 20861da177e4SLinus Torvalds /* 20871da177e4SLinus Torvalds * Encode REMOVE request 20881da177e4SLinus Torvalds */ 20899f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 20909f06c719SChuck Lever const struct nfs_removeargs *args) 20911da177e4SLinus Torvalds { 20921da177e4SLinus Torvalds struct compound_hdr hdr = { 209366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20941da177e4SLinus Torvalds }; 20951da177e4SLinus Torvalds 20969f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20979f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20989f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20999f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2100d017931cSAndy Adamson encode_nops(&hdr); 21011da177e4SLinus Torvalds } 21021da177e4SLinus Torvalds 21031da177e4SLinus Torvalds /* 21041da177e4SLinus Torvalds * Encode RENAME request 21051da177e4SLinus Torvalds */ 21069f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21079f06c719SChuck Lever const struct nfs_renameargs *args) 21081da177e4SLinus Torvalds { 21091da177e4SLinus Torvalds struct compound_hdr hdr = { 211066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21111da177e4SLinus Torvalds }; 21121da177e4SLinus Torvalds 21139f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21149f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21159f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21169f06c719SChuck Lever encode_savefh(xdr, &hdr); 21179f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21189f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2119d017931cSAndy Adamson encode_nops(&hdr); 21201da177e4SLinus Torvalds } 21211da177e4SLinus Torvalds 21221da177e4SLinus Torvalds /* 21231da177e4SLinus Torvalds * Encode LINK request 21241da177e4SLinus Torvalds */ 21259f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21269f06c719SChuck Lever const struct nfs4_link_arg *args) 21271da177e4SLinus Torvalds { 21281da177e4SLinus Torvalds struct compound_hdr hdr = { 212966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21301da177e4SLinus Torvalds }; 21311da177e4SLinus Torvalds 21329f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21339f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21349f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21359f06c719SChuck Lever encode_savefh(xdr, &hdr); 21369f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21379f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21389f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21399f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2140d017931cSAndy Adamson encode_nops(&hdr); 21411da177e4SLinus Torvalds } 21421da177e4SLinus Torvalds 21431da177e4SLinus Torvalds /* 21441da177e4SLinus Torvalds * Encode CREATE request 21451da177e4SLinus Torvalds */ 21469f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 21479f06c719SChuck Lever const struct nfs4_create_arg *args) 21481da177e4SLinus Torvalds { 21491da177e4SLinus Torvalds struct compound_hdr hdr = { 215066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21511da177e4SLinus Torvalds }; 21521da177e4SLinus Torvalds 21539f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21549f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21559f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21569f06c719SChuck Lever encode_create(xdr, args, &hdr); 21579f06c719SChuck Lever encode_getfh(xdr, &hdr); 21589f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2159d017931cSAndy Adamson encode_nops(&hdr); 21601da177e4SLinus Torvalds } 21611da177e4SLinus Torvalds 21621da177e4SLinus Torvalds /* 21631da177e4SLinus Torvalds * Encode SYMLINK request 21641da177e4SLinus Torvalds */ 21659f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21669f06c719SChuck Lever const struct nfs4_create_arg *args) 21671da177e4SLinus Torvalds { 21689f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 21691da177e4SLinus Torvalds } 21701da177e4SLinus Torvalds 21711da177e4SLinus Torvalds /* 21721da177e4SLinus Torvalds * Encode GETATTR request 21731da177e4SLinus Torvalds */ 21749f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 21759f06c719SChuck Lever const struct nfs4_getattr_arg *args) 21761da177e4SLinus Torvalds { 21771da177e4SLinus Torvalds struct compound_hdr hdr = { 217866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21791da177e4SLinus Torvalds }; 21801da177e4SLinus Torvalds 21819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21829f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21839f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21849f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2185d017931cSAndy Adamson encode_nops(&hdr); 21861da177e4SLinus Torvalds } 21871da177e4SLinus Torvalds 21881da177e4SLinus Torvalds /* 21891da177e4SLinus Torvalds * Encode a CLOSE request 21901da177e4SLinus Torvalds */ 21919f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 21929f06c719SChuck Lever struct nfs_closeargs *args) 21931da177e4SLinus Torvalds { 21941da177e4SLinus Torvalds struct compound_hdr hdr = { 219566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21961da177e4SLinus Torvalds }; 21971da177e4SLinus Torvalds 21989f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21999f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22009f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22019f06c719SChuck Lever encode_close(xdr, args, &hdr); 22029f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2203d017931cSAndy Adamson encode_nops(&hdr); 22041da177e4SLinus Torvalds } 22051da177e4SLinus Torvalds 22061da177e4SLinus Torvalds /* 22071da177e4SLinus Torvalds * Encode an OPEN request 22081da177e4SLinus Torvalds */ 22099f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22109f06c719SChuck Lever struct nfs_openargs *args) 22111da177e4SLinus Torvalds { 22121da177e4SLinus Torvalds struct compound_hdr hdr = { 221366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22141da177e4SLinus Torvalds }; 22151da177e4SLinus Torvalds 22169f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22179f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22189f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22199f06c719SChuck Lever encode_open(xdr, args, &hdr); 22209f06c719SChuck Lever encode_getfh(xdr, &hdr); 2221ae2bb032SWeston Andros Adamson if (args->access) 22226168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22231549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2224d017931cSAndy Adamson encode_nops(&hdr); 22251da177e4SLinus Torvalds } 22261da177e4SLinus Torvalds 22271da177e4SLinus Torvalds /* 22281da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22291da177e4SLinus Torvalds */ 22309f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22319f06c719SChuck Lever struct xdr_stream *xdr, 22329f06c719SChuck Lever struct nfs_open_confirmargs *args) 22331da177e4SLinus Torvalds { 22341da177e4SLinus Torvalds struct compound_hdr hdr = { 2235d017931cSAndy Adamson .nops = 0, 22361da177e4SLinus Torvalds }; 22371da177e4SLinus Torvalds 22389f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22399f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22409f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2241d017931cSAndy Adamson encode_nops(&hdr); 22421da177e4SLinus Torvalds } 22431da177e4SLinus Torvalds 22441da177e4SLinus Torvalds /* 22451da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 22461da177e4SLinus Torvalds */ 22479f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 22489f06c719SChuck Lever struct xdr_stream *xdr, 22499f06c719SChuck Lever struct nfs_openargs *args) 22501da177e4SLinus Torvalds { 22511da177e4SLinus Torvalds struct compound_hdr hdr = { 225266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22531da177e4SLinus Torvalds }; 22541da177e4SLinus Torvalds 22559f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22569f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22579f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22589f06c719SChuck Lever encode_open(xdr, args, &hdr); 2259ae2bb032SWeston Andros Adamson if (args->access) 22606168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2261e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2262d017931cSAndy Adamson encode_nops(&hdr); 22631da177e4SLinus Torvalds } 22641da177e4SLinus Torvalds 22651da177e4SLinus Torvalds /* 22661da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 22671da177e4SLinus Torvalds */ 22689f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 22699f06c719SChuck Lever struct xdr_stream *xdr, 22709f06c719SChuck Lever struct nfs_closeargs *args) 22711da177e4SLinus Torvalds { 22721da177e4SLinus Torvalds struct compound_hdr hdr = { 227366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22741da177e4SLinus Torvalds }; 22751da177e4SLinus Torvalds 22769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22779f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22789f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22799f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 22809f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2281d017931cSAndy Adamson encode_nops(&hdr); 22821da177e4SLinus Torvalds } 22831da177e4SLinus Torvalds 22841da177e4SLinus Torvalds /* 22851da177e4SLinus Torvalds * Encode a LOCK request 22861da177e4SLinus Torvalds */ 22879f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 22889f06c719SChuck Lever struct nfs_lock_args *args) 22891da177e4SLinus Torvalds { 22901da177e4SLinus Torvalds struct compound_hdr hdr = { 229166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22921da177e4SLinus Torvalds }; 22931da177e4SLinus Torvalds 22949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22959f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22969f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22979f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2298d017931cSAndy Adamson encode_nops(&hdr); 22991da177e4SLinus Torvalds } 23001da177e4SLinus Torvalds 23011da177e4SLinus Torvalds /* 23021da177e4SLinus Torvalds * Encode a LOCKT request 23031da177e4SLinus Torvalds */ 23049f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23059f06c719SChuck Lever struct nfs_lockt_args *args) 23061da177e4SLinus Torvalds { 23071da177e4SLinus Torvalds struct compound_hdr hdr = { 230866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23091da177e4SLinus Torvalds }; 23101da177e4SLinus Torvalds 23119f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23129f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23139f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23149f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2315d017931cSAndy Adamson encode_nops(&hdr); 23161da177e4SLinus Torvalds } 23171da177e4SLinus Torvalds 23181da177e4SLinus Torvalds /* 23191da177e4SLinus Torvalds * Encode a LOCKU request 23201da177e4SLinus Torvalds */ 23219f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23229f06c719SChuck Lever struct nfs_locku_args *args) 23231da177e4SLinus Torvalds { 23241da177e4SLinus Torvalds struct compound_hdr hdr = { 232566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23261da177e4SLinus Torvalds }; 23271da177e4SLinus Torvalds 23289f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23299f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23309f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23319f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2332d017931cSAndy Adamson encode_nops(&hdr); 23331da177e4SLinus Torvalds } 23341da177e4SLinus Torvalds 23359f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23369f06c719SChuck Lever struct xdr_stream *xdr, 23379f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2338d3c7b7ccSTrond Myklebust { 2339d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2340d3c7b7ccSTrond Myklebust .minorversion = 0, 2341d3c7b7ccSTrond Myklebust }; 2342d3c7b7ccSTrond Myklebust 23439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23449f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2345d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2346d3c7b7ccSTrond Myklebust } 2347d3c7b7ccSTrond Myklebust 23481da177e4SLinus Torvalds /* 23491da177e4SLinus Torvalds * Encode a READLINK request 23501da177e4SLinus Torvalds */ 23519f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 23529f06c719SChuck Lever const struct nfs4_readlink *args) 23531da177e4SLinus Torvalds { 23541da177e4SLinus Torvalds struct compound_hdr hdr = { 235566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23561da177e4SLinus Torvalds }; 23571da177e4SLinus Torvalds 23589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23609f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23619f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2362e3a535e1STrond Myklebust 236328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2364e3a535e1STrond Myklebust args->pgbase, args->pglen); 2365d017931cSAndy Adamson encode_nops(&hdr); 23661da177e4SLinus Torvalds } 23671da177e4SLinus Torvalds 23681da177e4SLinus Torvalds /* 23691da177e4SLinus Torvalds * Encode a READDIR request 23701da177e4SLinus Torvalds */ 23719f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 23729f06c719SChuck Lever const struct nfs4_readdir_arg *args) 23731da177e4SLinus Torvalds { 23741da177e4SLinus Torvalds struct compound_hdr hdr = { 237566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23761da177e4SLinus Torvalds }; 23771da177e4SLinus Torvalds 23789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23799f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23809f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23819f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2382d6ac02dfSTrond Myklebust 238328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2384d6ac02dfSTrond Myklebust args->pgbase, args->count); 2385d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 238628f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2387d6ac02dfSTrond Myklebust args->pgbase, args->count); 2388d017931cSAndy Adamson encode_nops(&hdr); 23891da177e4SLinus Torvalds } 23901da177e4SLinus Torvalds 23911da177e4SLinus Torvalds /* 23921da177e4SLinus Torvalds * Encode a READ request 23931da177e4SLinus Torvalds */ 23949f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 23959f06c719SChuck Lever struct nfs_readargs *args) 23961da177e4SLinus Torvalds { 23971da177e4SLinus Torvalds struct compound_hdr hdr = { 239866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23991da177e4SLinus Torvalds }; 24001da177e4SLinus Torvalds 24019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24049f06c719SChuck Lever encode_read(xdr, args, &hdr); 24051da177e4SLinus Torvalds 240628f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24071da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24084f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2409d017931cSAndy Adamson encode_nops(&hdr); 24101da177e4SLinus Torvalds } 24111da177e4SLinus Torvalds 24121da177e4SLinus Torvalds /* 24131da177e4SLinus Torvalds * Encode an SETATTR request 24141da177e4SLinus Torvalds */ 24159f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24169f06c719SChuck Lever struct nfs_setattrargs *args) 24171da177e4SLinus Torvalds { 24181da177e4SLinus Torvalds struct compound_hdr hdr = { 241966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24201da177e4SLinus Torvalds }; 24211da177e4SLinus Torvalds 24229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24239f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24249f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24259f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24269f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2427d017931cSAndy Adamson encode_nops(&hdr); 24281da177e4SLinus Torvalds } 24291da177e4SLinus Torvalds 24301da177e4SLinus Torvalds /* 2431029d105eSJ. Bruce Fields * Encode a GETACL request 2432029d105eSJ. Bruce Fields */ 24339f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2434029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2435029d105eSJ. Bruce Fields { 2436029d105eSJ. Bruce Fields struct compound_hdr hdr = { 243766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2438029d105eSJ. Bruce Fields }; 243928f56694SBenny Halevy uint32_t replen; 2440029d105eSJ. Bruce Fields 24419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2444bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 24459f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2446cf8cdbe5SAndy Adamson 244728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2448029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2449bf118a34SAndy Adamson 2450d017931cSAndy Adamson encode_nops(&hdr); 2451029d105eSJ. Bruce Fields } 2452029d105eSJ. Bruce Fields 2453029d105eSJ. Bruce Fields /* 24541da177e4SLinus Torvalds * Encode a WRITE request 24551da177e4SLinus Torvalds */ 24569f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 24579f06c719SChuck Lever struct nfs_writeargs *args) 24581da177e4SLinus Torvalds { 24591da177e4SLinus Torvalds struct compound_hdr hdr = { 246066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24611da177e4SLinus Torvalds }; 24621da177e4SLinus Torvalds 24639f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24649f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24659f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24669f06c719SChuck Lever encode_write(xdr, args, &hdr); 24674f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 24687ffd1064SFred Isaman if (args->bitmask) 24699f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2470d017931cSAndy Adamson encode_nops(&hdr); 24711da177e4SLinus Torvalds } 24721da177e4SLinus Torvalds 24731da177e4SLinus Torvalds /* 24741da177e4SLinus Torvalds * a COMMIT request 24751da177e4SLinus Torvalds */ 24769f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 24770b7c0153SFred Isaman struct nfs_commitargs *args) 24781da177e4SLinus Torvalds { 24791da177e4SLinus Torvalds struct compound_hdr hdr = { 248066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24811da177e4SLinus Torvalds }; 24821da177e4SLinus Torvalds 24839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24869f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2487d017931cSAndy Adamson encode_nops(&hdr); 24881da177e4SLinus Torvalds } 24891da177e4SLinus Torvalds 24901da177e4SLinus Torvalds /* 24911da177e4SLinus Torvalds * FSINFO request 24921da177e4SLinus Torvalds */ 24939f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 24949f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 24951da177e4SLinus Torvalds { 24961da177e4SLinus Torvalds struct compound_hdr hdr = { 249766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24981da177e4SLinus Torvalds }; 24991da177e4SLinus Torvalds 25009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25039f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2504d017931cSAndy Adamson encode_nops(&hdr); 25051da177e4SLinus Torvalds } 25061da177e4SLinus Torvalds 25071da177e4SLinus Torvalds /* 25081da177e4SLinus Torvalds * a PATHCONF request 25091da177e4SLinus Torvalds */ 25109f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25119f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25121da177e4SLinus Torvalds { 25131da177e4SLinus Torvalds struct compound_hdr hdr = { 251466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25151da177e4SLinus Torvalds }; 25161da177e4SLinus Torvalds 25179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25189f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25199f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25209f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2521d017931cSAndy Adamson &hdr); 2522d017931cSAndy Adamson encode_nops(&hdr); 25231da177e4SLinus Torvalds } 25241da177e4SLinus Torvalds 25251da177e4SLinus Torvalds /* 25261da177e4SLinus Torvalds * a STATFS request 25271da177e4SLinus Torvalds */ 25289f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25299f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25301da177e4SLinus Torvalds { 25311da177e4SLinus Torvalds struct compound_hdr hdr = { 253266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25331da177e4SLinus Torvalds }; 25341da177e4SLinus Torvalds 25359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25369f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25379f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25389f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2539d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2540d017931cSAndy Adamson encode_nops(&hdr); 25411da177e4SLinus Torvalds } 25421da177e4SLinus Torvalds 25431da177e4SLinus Torvalds /* 25441da177e4SLinus Torvalds * GETATTR_BITMAP request 25451da177e4SLinus Torvalds */ 25469f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 25479f06c719SChuck Lever struct xdr_stream *xdr, 254843652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 25491da177e4SLinus Torvalds { 25501da177e4SLinus Torvalds struct compound_hdr hdr = { 255166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25521da177e4SLinus Torvalds }; 25531da177e4SLinus Torvalds 25549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25559f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25569f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 25579f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2558264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 25591da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 25601da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2561d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2562d017931cSAndy Adamson encode_nops(&hdr); 25631da177e4SLinus Torvalds } 25641da177e4SLinus Torvalds 25651da177e4SLinus Torvalds /* 25661da177e4SLinus Torvalds * a RENEW request 25671da177e4SLinus Torvalds */ 25689f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 25699f06c719SChuck Lever struct nfs_client *clp) 25701da177e4SLinus Torvalds { 25711da177e4SLinus Torvalds struct compound_hdr hdr = { 2572d017931cSAndy Adamson .nops = 0, 25731da177e4SLinus Torvalds }; 25741da177e4SLinus Torvalds 25759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2576bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2577d017931cSAndy Adamson encode_nops(&hdr); 25781da177e4SLinus Torvalds } 25791da177e4SLinus Torvalds 25801da177e4SLinus Torvalds /* 25811da177e4SLinus Torvalds * a SETCLIENTID request 25821da177e4SLinus Torvalds */ 25839f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 25849f06c719SChuck Lever struct xdr_stream *xdr, 25859f06c719SChuck Lever struct nfs4_setclientid *sc) 25861da177e4SLinus Torvalds { 25871da177e4SLinus Torvalds struct compound_hdr hdr = { 2588d017931cSAndy Adamson .nops = 0, 25891da177e4SLinus Torvalds }; 25901da177e4SLinus Torvalds 25919f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25929f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2593d017931cSAndy Adamson encode_nops(&hdr); 25941da177e4SLinus Torvalds } 25951da177e4SLinus Torvalds 25961da177e4SLinus Torvalds /* 25971da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 25981da177e4SLinus Torvalds */ 25999f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26009f06c719SChuck Lever struct xdr_stream *xdr, 26019f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26021da177e4SLinus Torvalds { 26031da177e4SLinus Torvalds struct compound_hdr hdr = { 2604d017931cSAndy Adamson .nops = 0, 26051da177e4SLinus Torvalds }; 26061da177e4SLinus Torvalds 26079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26089f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 2609d017931cSAndy Adamson encode_nops(&hdr); 26101da177e4SLinus Torvalds } 26111da177e4SLinus Torvalds 26121da177e4SLinus Torvalds /* 26131da177e4SLinus Torvalds * DELEGRETURN request 26141da177e4SLinus Torvalds */ 26159f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26169f06c719SChuck Lever struct xdr_stream *xdr, 26179f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26181da177e4SLinus Torvalds { 26191da177e4SLinus Torvalds struct compound_hdr hdr = { 262066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26211da177e4SLinus Torvalds }; 26221da177e4SLinus Torvalds 26239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26249f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26259f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26269f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2627e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2628d017931cSAndy Adamson encode_nops(&hdr); 26291da177e4SLinus Torvalds } 26301da177e4SLinus Torvalds 26311da177e4SLinus Torvalds /* 2632683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2633683b57b4STrond Myklebust */ 26349f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26359f06c719SChuck Lever struct xdr_stream *xdr, 26369f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2637683b57b4STrond Myklebust { 2638683b57b4STrond Myklebust struct compound_hdr hdr = { 263966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2640683b57b4STrond Myklebust }; 264128f56694SBenny Halevy uint32_t replen; 2642683b57b4STrond Myklebust 26439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26449f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26459f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 26469f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 264728f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 26489f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2649cf8cdbe5SAndy Adamson 265028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2651683b57b4STrond Myklebust 0, PAGE_SIZE); 2652d017931cSAndy Adamson encode_nops(&hdr); 2653683b57b4STrond Myklebust } 2654683b57b4STrond Myklebust 26555a5ea0d4SBryan Schumaker /* 26565a5ea0d4SBryan Schumaker * Encode SECINFO request 26575a5ea0d4SBryan Schumaker */ 26585a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 26595a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 26605a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 26615a5ea0d4SBryan Schumaker { 26625a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 26635a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26645a5ea0d4SBryan Schumaker }; 26655a5ea0d4SBryan Schumaker 26665a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 26675a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 26685a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 26695a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 26705a5ea0d4SBryan Schumaker encode_nops(&hdr); 26715a5ea0d4SBryan Schumaker } 26725a5ea0d4SBryan Schumaker 267399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 267499fe60d0SBenny Halevy /* 26757c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 26767c44f1aeSWeston Andros Adamson */ 26777c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 26787c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 26797c44f1aeSWeston Andros Adamson struct nfs_client *clp) 26807c44f1aeSWeston Andros Adamson { 26817c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 26827c44f1aeSWeston Andros Adamson .minorversion = clp->cl_mvops->minor_version, 26837c44f1aeSWeston Andros Adamson }; 26847c44f1aeSWeston Andros Adamson 26857c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 26867c44f1aeSWeston Andros Adamson encode_bind_conn_to_session(xdr, clp->cl_session, &hdr); 26877c44f1aeSWeston Andros Adamson encode_nops(&hdr); 26887c44f1aeSWeston Andros Adamson } 26897c44f1aeSWeston Andros Adamson 26907c44f1aeSWeston Andros Adamson /* 269199fe60d0SBenny Halevy * EXCHANGE_ID request 269299fe60d0SBenny Halevy */ 26939f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 26949f06c719SChuck Lever struct xdr_stream *xdr, 269599fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 269699fe60d0SBenny Halevy { 269799fe60d0SBenny Halevy struct compound_hdr hdr = { 2698a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 269999fe60d0SBenny Halevy }; 270099fe60d0SBenny Halevy 27019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27029f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 270399fe60d0SBenny Halevy encode_nops(&hdr); 270499fe60d0SBenny Halevy } 27052050f0ccSAndy Adamson 27062050f0ccSAndy Adamson /* 2707fc931582SAndy Adamson * a CREATE_SESSION request 2708fc931582SAndy Adamson */ 27099f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27109f06c719SChuck Lever struct xdr_stream *xdr, 2711fc931582SAndy Adamson struct nfs41_create_session_args *args) 2712fc931582SAndy Adamson { 2713fc931582SAndy Adamson struct compound_hdr hdr = { 2714a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2715fc931582SAndy Adamson }; 2716fc931582SAndy Adamson 27179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27189f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2719fc931582SAndy Adamson encode_nops(&hdr); 2720fc931582SAndy Adamson } 2721fc931582SAndy Adamson 2722fc931582SAndy Adamson /* 27230f3e66c6SAndy Adamson * a DESTROY_SESSION request 27240f3e66c6SAndy Adamson */ 27259f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 27269f06c719SChuck Lever struct xdr_stream *xdr, 27270f3e66c6SAndy Adamson struct nfs4_session *session) 27280f3e66c6SAndy Adamson { 27290f3e66c6SAndy Adamson struct compound_hdr hdr = { 2730a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 27310f3e66c6SAndy Adamson }; 27320f3e66c6SAndy Adamson 27339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27349f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 27350f3e66c6SAndy Adamson encode_nops(&hdr); 27360f3e66c6SAndy Adamson } 27370f3e66c6SAndy Adamson 27380f3e66c6SAndy Adamson /* 273966245539STrond Myklebust * a DESTROY_CLIENTID request 274066245539STrond Myklebust */ 274166245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 274266245539STrond Myklebust struct xdr_stream *xdr, 274366245539STrond Myklebust struct nfs_client *clp) 274466245539STrond Myklebust { 274566245539STrond Myklebust struct compound_hdr hdr = { 274666245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 274766245539STrond Myklebust }; 274866245539STrond Myklebust 274966245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 275066245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 275166245539STrond Myklebust encode_nops(&hdr); 275266245539STrond Myklebust } 275366245539STrond Myklebust 275466245539STrond Myklebust /* 2755fc01cea9SAndy Adamson * a SEQUENCE request 2756fc01cea9SAndy Adamson */ 27579f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2758fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2759fc01cea9SAndy Adamson { 2760fc01cea9SAndy Adamson struct compound_hdr hdr = { 2761fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2762fc01cea9SAndy Adamson }; 2763fc01cea9SAndy Adamson 27649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27659f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2766fc01cea9SAndy Adamson encode_nops(&hdr); 2767fc01cea9SAndy Adamson } 2768fc01cea9SAndy Adamson 2769fc01cea9SAndy Adamson /* 27702050f0ccSAndy Adamson * a GET_LEASE_TIME request 27712050f0ccSAndy Adamson */ 27729f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 27739f06c719SChuck Lever struct xdr_stream *xdr, 27742050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 27752050f0ccSAndy Adamson { 27762050f0ccSAndy Adamson struct compound_hdr hdr = { 27772050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 27782050f0ccSAndy Adamson }; 2779dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27802050f0ccSAndy Adamson 27819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27829f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 27839f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27849f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 27852050f0ccSAndy Adamson encode_nops(&hdr); 27862050f0ccSAndy Adamson } 278718019753SRicardo Labiaga 278818019753SRicardo Labiaga /* 278918019753SRicardo Labiaga * a RECLAIM_COMPLETE request 279018019753SRicardo Labiaga */ 27919f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 27929f06c719SChuck Lever struct xdr_stream *xdr, 279318019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 279418019753SRicardo Labiaga { 279518019753SRicardo Labiaga struct compound_hdr hdr = { 279618019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 279718019753SRicardo Labiaga }; 279818019753SRicardo Labiaga 27999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28009f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28019f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 280218019753SRicardo Labiaga encode_nops(&hdr); 280318019753SRicardo Labiaga } 280418019753SRicardo Labiaga 2805b1f69b75SAndy Adamson /* 28067f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28077f11d8d3SAndy Adamson */ 28087f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28097f11d8d3SAndy Adamson struct xdr_stream *xdr, 28107f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 28117f11d8d3SAndy Adamson { 28127f11d8d3SAndy Adamson struct compound_hdr hdr = { 28137f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 28147f11d8d3SAndy Adamson }; 28157f11d8d3SAndy Adamson 28167f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 28177f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 28187f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 28197f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 28207f11d8d3SAndy Adamson encode_nops(&hdr); 28217f11d8d3SAndy Adamson } 28227f11d8d3SAndy Adamson 28237f11d8d3SAndy Adamson /* 2824b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2825b1f69b75SAndy Adamson */ 28269f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28279f06c719SChuck Lever struct xdr_stream *xdr, 2828b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2829b1f69b75SAndy Adamson { 2830b1f69b75SAndy Adamson struct compound_hdr hdr = { 2831b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2832b1f69b75SAndy Adamson }; 2833b1f69b75SAndy Adamson 28349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28359f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28369f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2837b1f69b75SAndy Adamson 2838b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2839b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2840b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2841b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2842b1f69b75SAndy Adamson args->pdev->pglen); 2843b1f69b75SAndy Adamson 2844b1f69b75SAndy Adamson encode_nops(&hdr); 2845b1f69b75SAndy Adamson } 2846b1f69b75SAndy Adamson 2847b1f69b75SAndy Adamson /* 2848b1f69b75SAndy Adamson * Encode LAYOUTGET request 2849b1f69b75SAndy Adamson */ 28509f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 28519f06c719SChuck Lever struct xdr_stream *xdr, 2852b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2853b1f69b75SAndy Adamson { 2854b1f69b75SAndy Adamson struct compound_hdr hdr = { 2855b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2856b1f69b75SAndy Adamson }; 2857b1f69b75SAndy Adamson 28589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28609f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 28619f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 286235124a09SWeston Andros Adamson 286335124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 286435124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 286535124a09SWeston Andros Adamson 2866b1f69b75SAndy Adamson encode_nops(&hdr); 2867b1f69b75SAndy Adamson } 2868863a3c6cSAndy Adamson 2869863a3c6cSAndy Adamson /* 2870863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2871863a3c6cSAndy Adamson */ 2872cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2873863a3c6cSAndy Adamson struct xdr_stream *xdr, 2874863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2875863a3c6cSAndy Adamson { 2876ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2877ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2878863a3c6cSAndy Adamson struct compound_hdr hdr = { 2879863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2880863a3c6cSAndy Adamson }; 2881863a3c6cSAndy Adamson 2882863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2883863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2884863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2885ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2886863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2887863a3c6cSAndy Adamson encode_nops(&hdr); 2888cbe82603SBenny Halevy } 2889cbe82603SBenny Halevy 2890cbe82603SBenny Halevy /* 2891cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2892cbe82603SBenny Halevy */ 2893cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2894cbe82603SBenny Halevy struct xdr_stream *xdr, 2895cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2896cbe82603SBenny Halevy { 2897cbe82603SBenny Halevy struct compound_hdr hdr = { 2898cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2899cbe82603SBenny Halevy }; 2900cbe82603SBenny Halevy 2901cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2902cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2903cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2904cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2905cbe82603SBenny Halevy encode_nops(&hdr); 2906863a3c6cSAndy Adamson } 2907fca78d6dSBryan Schumaker 2908fca78d6dSBryan Schumaker /* 2909fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2910fca78d6dSBryan Schumaker */ 2911fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2912fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2913fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2914fca78d6dSBryan Schumaker { 2915fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2916fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2917fca78d6dSBryan Schumaker }; 2918fca78d6dSBryan Schumaker 2919fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2920fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2921fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2922fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2923fca78d6dSBryan Schumaker encode_nops(&hdr); 2924fca78d6dSBryan Schumaker return 0; 2925fca78d6dSBryan Schumaker } 29267d974794SBryan Schumaker 29277d974794SBryan Schumaker /* 29287d974794SBryan Schumaker * Encode TEST_STATEID request 29297d974794SBryan Schumaker */ 29307d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29317d974794SBryan Schumaker struct xdr_stream *xdr, 29327d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29337d974794SBryan Schumaker { 29347d974794SBryan Schumaker struct compound_hdr hdr = { 29357d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29367d974794SBryan Schumaker }; 29377d974794SBryan Schumaker 29387d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29397d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29407d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 29417d974794SBryan Schumaker encode_nops(&hdr); 29427d974794SBryan Schumaker } 29439aeda35fSBryan Schumaker 29449aeda35fSBryan Schumaker /* 29459aeda35fSBryan Schumaker * Encode FREE_STATEID request 29469aeda35fSBryan Schumaker */ 29479aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 29489aeda35fSBryan Schumaker struct xdr_stream *xdr, 29499aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 29509aeda35fSBryan Schumaker { 29519aeda35fSBryan Schumaker struct compound_hdr hdr = { 29529aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29539aeda35fSBryan Schumaker }; 29549aeda35fSBryan Schumaker 29559aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29569aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29579aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 29589aeda35fSBryan Schumaker encode_nops(&hdr); 29599aeda35fSBryan Schumaker } 296099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 296199fe60d0SBenny Halevy 2962686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2963686841b3SBenny Halevy { 2964686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2965686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2966686841b3SBenny Halevy func, xdr->end - xdr->p); 2967686841b3SBenny Halevy } 29681da177e4SLinus Torvalds 2969683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 29701da177e4SLinus Torvalds { 29718687b63aSAl Viro __be32 *p; 29721da177e4SLinus Torvalds 2973c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2974c0eae66eSBenny Halevy if (unlikely(!p)) 2975c0eae66eSBenny Halevy goto out_overflow; 2976cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2977c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2978c0eae66eSBenny Halevy if (unlikely(!p)) 2979c0eae66eSBenny Halevy goto out_overflow; 29801da177e4SLinus Torvalds *string = (char *)p; 29811da177e4SLinus Torvalds return 0; 2982c0eae66eSBenny Halevy out_overflow: 2983c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2984c0eae66eSBenny Halevy return -EIO; 29851da177e4SLinus Torvalds } 29861da177e4SLinus Torvalds 29871da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 29881da177e4SLinus Torvalds { 29898687b63aSAl Viro __be32 *p; 29901da177e4SLinus Torvalds 2991c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2992c0eae66eSBenny Halevy if (unlikely(!p)) 2993c0eae66eSBenny Halevy goto out_overflow; 29946f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2995cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 29961da177e4SLinus Torvalds 2997c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2998c0eae66eSBenny Halevy if (unlikely(!p)) 2999c0eae66eSBenny Halevy goto out_overflow; 30001da177e4SLinus Torvalds hdr->tag = (char *)p; 30011da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3002cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3003aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3004aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30051da177e4SLinus Torvalds return 0; 3006c0eae66eSBenny Halevy out_overflow: 3007c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3008c0eae66eSBenny Halevy return -EIO; 30091da177e4SLinus Torvalds } 30101da177e4SLinus Torvalds 30111da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 30121da177e4SLinus Torvalds { 30138687b63aSAl Viro __be32 *p; 30141da177e4SLinus Torvalds uint32_t opnum; 30151da177e4SLinus Torvalds int32_t nfserr; 30161da177e4SLinus Torvalds 3017c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3018c0eae66eSBenny Halevy if (unlikely(!p)) 3019c0eae66eSBenny Halevy goto out_overflow; 30206f723f77SBenny Halevy opnum = be32_to_cpup(p++); 30211da177e4SLinus Torvalds if (opnum != expected) { 3022fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30231da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30241da177e4SLinus Torvalds opnum, expected); 30251da177e4SLinus Torvalds return -EIO; 30261da177e4SLinus Torvalds } 3027cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 30281da177e4SLinus Torvalds if (nfserr != NFS_OK) 3029856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 30301da177e4SLinus Torvalds return 0; 3031c0eae66eSBenny Halevy out_overflow: 3032c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3033c0eae66eSBenny Halevy return -EIO; 30341da177e4SLinus Torvalds } 30351da177e4SLinus Torvalds 30361da177e4SLinus Torvalds /* Dummy routine */ 3037adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 30381da177e4SLinus Torvalds { 30398687b63aSAl Viro __be32 *p; 3040683b57b4STrond Myklebust unsigned int strlen; 30411da177e4SLinus Torvalds char *str; 30421da177e4SLinus Torvalds 3043c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3044c0eae66eSBenny Halevy if (likely(p)) 30451da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3046c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3047c0eae66eSBenny Halevy return -EIO; 30481da177e4SLinus Torvalds } 30491da177e4SLinus Torvalds 30501da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 30511da177e4SLinus Torvalds { 30528687b63aSAl Viro uint32_t bmlen; 30538687b63aSAl Viro __be32 *p; 30541da177e4SLinus Torvalds 3055c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3056c0eae66eSBenny Halevy if (unlikely(!p)) 3057c0eae66eSBenny Halevy goto out_overflow; 3058cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 30591da177e4SLinus Torvalds 3060dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3061c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3062c0eae66eSBenny Halevy if (unlikely(!p)) 3063c0eae66eSBenny Halevy goto out_overflow; 30641da177e4SLinus Torvalds if (bmlen > 0) { 30656f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3066dae100c2SFred Isaman if (bmlen > 1) { 3067dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3068dae100c2SFred Isaman if (bmlen > 2) 3069dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3070dae100c2SFred Isaman } 30711da177e4SLinus Torvalds } 30721da177e4SLinus Torvalds return 0; 3073c0eae66eSBenny Halevy out_overflow: 3074c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3075c0eae66eSBenny Halevy return -EIO; 30761da177e4SLinus Torvalds } 30771da177e4SLinus Torvalds 3078256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 30791da177e4SLinus Torvalds { 30808687b63aSAl Viro __be32 *p; 30811da177e4SLinus Torvalds 3082c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3083c0eae66eSBenny Halevy if (unlikely(!p)) 3084c0eae66eSBenny Halevy goto out_overflow; 3085cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3086256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 30871da177e4SLinus Torvalds return 0; 3088c0eae66eSBenny Halevy out_overflow: 3089c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3090c0eae66eSBenny Halevy return -EIO; 30911da177e4SLinus Torvalds } 30921da177e4SLinus Torvalds 30931da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 30941da177e4SLinus Torvalds { 30951da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 30963388bff5SRoman Borisov int ret; 30973388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 30983388bff5SRoman Borisov if (unlikely(ret < 0)) 30993388bff5SRoman Borisov return ret; 31001da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31011da177e4SLinus Torvalds } else 3102dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3103dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3104dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31051da177e4SLinus Torvalds return 0; 31061da177e4SLinus Torvalds } 31071da177e4SLinus Torvalds 31081da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31091da177e4SLinus Torvalds { 31108687b63aSAl Viro __be32 *p; 3111409924e4STrond Myklebust int ret = 0; 31121da177e4SLinus Torvalds 31131da177e4SLinus Torvalds *type = 0; 31141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31151da177e4SLinus Torvalds return -EIO; 31161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3117c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3118c0eae66eSBenny Halevy if (unlikely(!p)) 3119c0eae66eSBenny Halevy goto out_overflow; 3120cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31211da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31223110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31231da177e4SLinus Torvalds return -EIO; 31241da177e4SLinus Torvalds } 31251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3126409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 31271da177e4SLinus Torvalds } 3128bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3129409924e4STrond Myklebust return ret; 3130c0eae66eSBenny Halevy out_overflow: 3131c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3132c0eae66eSBenny Halevy return -EIO; 31331da177e4SLinus Torvalds } 31341da177e4SLinus Torvalds 3135264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3136264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3137264e6351SChuck Lever { 3138264e6351SChuck Lever __be32 *p; 3139264e6351SChuck Lever 3140264e6351SChuck Lever *type = 0; 3141264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3142264e6351SChuck Lever return -EIO; 3143264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3144264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3145264e6351SChuck Lever if (unlikely(!p)) 3146264e6351SChuck Lever goto out_overflow; 3147264e6351SChuck Lever *type = be32_to_cpup(p); 3148264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3149264e6351SChuck Lever } 3150264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3151264e6351SChuck Lever return 0; 3152264e6351SChuck Lever out_overflow: 3153264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3154264e6351SChuck Lever return -EIO; 3155264e6351SChuck Lever } 3156264e6351SChuck Lever 31571da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 31581da177e4SLinus Torvalds { 31598687b63aSAl Viro __be32 *p; 3160409924e4STrond Myklebust int ret = 0; 31611da177e4SLinus Torvalds 31621da177e4SLinus Torvalds *change = 0; 31631da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 31641da177e4SLinus Torvalds return -EIO; 31651da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3166c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3167c0eae66eSBenny Halevy if (unlikely(!p)) 3168c0eae66eSBenny Halevy goto out_overflow; 3169cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 31701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3171409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 31721da177e4SLinus Torvalds } 31733110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 31741da177e4SLinus Torvalds (unsigned long long)*change); 3175409924e4STrond Myklebust return ret; 3176c0eae66eSBenny Halevy out_overflow: 3177c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3178c0eae66eSBenny Halevy return -EIO; 31791da177e4SLinus Torvalds } 31801da177e4SLinus Torvalds 31811da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 31821da177e4SLinus Torvalds { 31838687b63aSAl Viro __be32 *p; 3184409924e4STrond Myklebust int ret = 0; 31851da177e4SLinus Torvalds 31861da177e4SLinus Torvalds *size = 0; 31871da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 31881da177e4SLinus Torvalds return -EIO; 31891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3190c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3191c0eae66eSBenny Halevy if (unlikely(!p)) 3192c0eae66eSBenny Halevy goto out_overflow; 3193cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 31941da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3195409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 31961da177e4SLinus Torvalds } 31973110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3198409924e4STrond Myklebust return ret; 3199c0eae66eSBenny Halevy out_overflow: 3200c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3201c0eae66eSBenny Halevy return -EIO; 32021da177e4SLinus Torvalds } 32031da177e4SLinus Torvalds 32041da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32051da177e4SLinus Torvalds { 32068687b63aSAl Viro __be32 *p; 32071da177e4SLinus Torvalds 32081da177e4SLinus Torvalds *res = 0; 32091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32101da177e4SLinus Torvalds return -EIO; 32111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3212c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3213c0eae66eSBenny Halevy if (unlikely(!p)) 3214c0eae66eSBenny Halevy goto out_overflow; 3215cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32171da177e4SLinus Torvalds } 32183110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32191da177e4SLinus Torvalds return 0; 3220c0eae66eSBenny Halevy out_overflow: 3221c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3222c0eae66eSBenny Halevy return -EIO; 32231da177e4SLinus Torvalds } 32241da177e4SLinus Torvalds 32251da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32261da177e4SLinus Torvalds { 32278687b63aSAl Viro __be32 *p; 32281da177e4SLinus Torvalds 32291da177e4SLinus Torvalds *res = 0; 32301da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32311da177e4SLinus Torvalds return -EIO; 32321da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3233c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3234c0eae66eSBenny Halevy if (unlikely(!p)) 3235c0eae66eSBenny Halevy goto out_overflow; 3236cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 32381da177e4SLinus Torvalds } 32393110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 32401da177e4SLinus Torvalds return 0; 3241c0eae66eSBenny Halevy out_overflow: 3242c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3243c0eae66eSBenny Halevy return -EIO; 32441da177e4SLinus Torvalds } 32451da177e4SLinus Torvalds 32468b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 32471da177e4SLinus Torvalds { 32488687b63aSAl Viro __be32 *p; 3249409924e4STrond Myklebust int ret = 0; 32501da177e4SLinus Torvalds 32511da177e4SLinus Torvalds fsid->major = 0; 32521da177e4SLinus Torvalds fsid->minor = 0; 32531da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 32541da177e4SLinus Torvalds return -EIO; 32551da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3256c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3257c0eae66eSBenny Halevy if (unlikely(!p)) 3258c0eae66eSBenny Halevy goto out_overflow; 32593ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3260cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 32611da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3262409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 32631da177e4SLinus Torvalds } 32643110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 32651da177e4SLinus Torvalds (unsigned long long)fsid->major, 32661da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3267409924e4STrond Myklebust return ret; 3268c0eae66eSBenny Halevy out_overflow: 3269c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3270c0eae66eSBenny Halevy return -EIO; 32711da177e4SLinus Torvalds } 32721da177e4SLinus Torvalds 32731da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32741da177e4SLinus Torvalds { 32758687b63aSAl Viro __be32 *p; 32761da177e4SLinus Torvalds 32771da177e4SLinus Torvalds *res = 60; 32781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 32791da177e4SLinus Torvalds return -EIO; 32801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3281c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3282c0eae66eSBenny Halevy if (unlikely(!p)) 3283c0eae66eSBenny Halevy goto out_overflow; 3284cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 32861da177e4SLinus Torvalds } 32873110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 32881da177e4SLinus Torvalds return 0; 3289c0eae66eSBenny Halevy out_overflow: 3290c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3291c0eae66eSBenny Halevy return -EIO; 32921da177e4SLinus Torvalds } 32931da177e4SLinus Torvalds 3294ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3295ae42c70aSBryan Schumaker { 3296ae42c70aSBryan Schumaker __be32 *p; 3297ae42c70aSBryan Schumaker 3298ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3299ae42c70aSBryan Schumaker return -EIO; 3300ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3301ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3302ae42c70aSBryan Schumaker if (unlikely(!p)) 3303ae42c70aSBryan Schumaker goto out_overflow; 3304ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3305ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3306ae42c70aSBryan Schumaker } 3307ae42c70aSBryan Schumaker return 0; 3308ae42c70aSBryan Schumaker out_overflow: 3309ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3310ae42c70aSBryan Schumaker return -EIO; 3311ae42c70aSBryan Schumaker } 3312ae42c70aSBryan Schumaker 3313ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3314ae42c70aSBryan Schumaker { 3315ae42c70aSBryan Schumaker __be32 *p; 3316ae42c70aSBryan Schumaker int len; 3317ae42c70aSBryan Schumaker 33187ad07353STrond Myklebust if (fh != NULL) 3319ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3320ae42c70aSBryan Schumaker 3321ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3322ae42c70aSBryan Schumaker return -EIO; 3323ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3324ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3325ae42c70aSBryan Schumaker if (unlikely(!p)) 3326ae42c70aSBryan Schumaker goto out_overflow; 3327ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3328ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3329ae42c70aSBryan Schumaker return -EIO; 3330ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3331ae42c70aSBryan Schumaker if (unlikely(!p)) 3332ae42c70aSBryan Schumaker goto out_overflow; 33337ad07353STrond Myklebust if (fh != NULL) { 3334ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 33357ad07353STrond Myklebust fh->size = len; 33367ad07353STrond Myklebust } 3337ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3338ae42c70aSBryan Schumaker } 3339ae42c70aSBryan Schumaker return 0; 3340ae42c70aSBryan Schumaker out_overflow: 3341ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3342ae42c70aSBryan Schumaker return -EIO; 3343ae42c70aSBryan Schumaker } 3344ae42c70aSBryan Schumaker 33451da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33461da177e4SLinus Torvalds { 33478687b63aSAl Viro __be32 *p; 33481da177e4SLinus Torvalds 33491da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 33501da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 33511da177e4SLinus Torvalds return -EIO; 33521da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3353c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3354c0eae66eSBenny Halevy if (unlikely(!p)) 3355c0eae66eSBenny Halevy goto out_overflow; 3356cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33571da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 33581da177e4SLinus Torvalds } 33593110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 33601da177e4SLinus Torvalds return 0; 3361c0eae66eSBenny Halevy out_overflow: 3362c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3363c0eae66eSBenny Halevy return -EIO; 33641da177e4SLinus Torvalds } 33651da177e4SLinus Torvalds 33661da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 33671da177e4SLinus Torvalds { 33688687b63aSAl Viro __be32 *p; 3369409924e4STrond Myklebust int ret = 0; 33701da177e4SLinus Torvalds 33711da177e4SLinus Torvalds *fileid = 0; 33721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 33731da177e4SLinus Torvalds return -EIO; 33741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3375c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3376c0eae66eSBenny Halevy if (unlikely(!p)) 3377c0eae66eSBenny Halevy goto out_overflow; 3378cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 33791da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3380409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 33811da177e4SLinus Torvalds } 33823110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3383409924e4STrond Myklebust return ret; 3384c0eae66eSBenny Halevy out_overflow: 3385c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3386c0eae66eSBenny Halevy return -EIO; 33871da177e4SLinus Torvalds } 33881da177e4SLinus Torvalds 338999baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 339099baf625SManoj Naik { 33918687b63aSAl Viro __be32 *p; 3392409924e4STrond Myklebust int ret = 0; 339399baf625SManoj Naik 339499baf625SManoj Naik *fileid = 0; 339599baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 339699baf625SManoj Naik return -EIO; 339799baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3398c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3399c0eae66eSBenny Halevy if (unlikely(!p)) 3400c0eae66eSBenny Halevy goto out_overflow; 3401cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 340299baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 340328331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 340499baf625SManoj Naik } 34053110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3406409924e4STrond Myklebust return ret; 3407c0eae66eSBenny Halevy out_overflow: 3408c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3409c0eae66eSBenny Halevy return -EIO; 341099baf625SManoj Naik } 341199baf625SManoj Naik 34121da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34131da177e4SLinus Torvalds { 34148687b63aSAl Viro __be32 *p; 34151da177e4SLinus Torvalds int status = 0; 34161da177e4SLinus Torvalds 34171da177e4SLinus Torvalds *res = 0; 34181da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34191da177e4SLinus Torvalds return -EIO; 34201da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3421c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3422c0eae66eSBenny Halevy if (unlikely(!p)) 3423c0eae66eSBenny Halevy goto out_overflow; 3424cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34261da177e4SLinus Torvalds } 34273110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34281da177e4SLinus Torvalds return status; 3429c0eae66eSBenny Halevy out_overflow: 3430c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3431c0eae66eSBenny Halevy return -EIO; 34321da177e4SLinus Torvalds } 34331da177e4SLinus Torvalds 34341da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34351da177e4SLinus Torvalds { 34368687b63aSAl Viro __be32 *p; 34371da177e4SLinus Torvalds int status = 0; 34381da177e4SLinus Torvalds 34391da177e4SLinus Torvalds *res = 0; 34401da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 34411da177e4SLinus Torvalds return -EIO; 34421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3443c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3444c0eae66eSBenny Halevy if (unlikely(!p)) 3445c0eae66eSBenny Halevy goto out_overflow; 3446cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 34481da177e4SLinus Torvalds } 34493110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 34501da177e4SLinus Torvalds return status; 3451c0eae66eSBenny Halevy out_overflow: 3452c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3453c0eae66eSBenny Halevy return -EIO; 34541da177e4SLinus Torvalds } 34551da177e4SLinus Torvalds 34561da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34571da177e4SLinus Torvalds { 34588687b63aSAl Viro __be32 *p; 34591da177e4SLinus Torvalds int status = 0; 34601da177e4SLinus Torvalds 34611da177e4SLinus Torvalds *res = 0; 34621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 34631da177e4SLinus Torvalds return -EIO; 34641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3465c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3466c0eae66eSBenny Halevy if (unlikely(!p)) 3467c0eae66eSBenny Halevy goto out_overflow; 3468cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34691da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 34701da177e4SLinus Torvalds } 34713110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 34721da177e4SLinus Torvalds return status; 3473c0eae66eSBenny Halevy out_overflow: 3474c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3475c0eae66eSBenny Halevy return -EIO; 34761da177e4SLinus Torvalds } 34771da177e4SLinus Torvalds 34787aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 34797aaa0b3bSManoj Naik { 3480464ad6b1SChuck Lever u32 n; 34818687b63aSAl Viro __be32 *p; 34827aaa0b3bSManoj Naik int status = 0; 34837aaa0b3bSManoj Naik 3484c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3485c0eae66eSBenny Halevy if (unlikely(!p)) 3486c0eae66eSBenny Halevy goto out_overflow; 3487cccddf4fSBenny Halevy n = be32_to_cpup(p); 348833a43f28SAndy Adamson if (n == 0) 348933a43f28SAndy Adamson goto root_path; 349002a2976cSChuck Lever dprintk("pathname4: "); 3491809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3492809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3493809b426cSTrond Myklebust goto out_eio; 3494809b426cSTrond Myklebust } 3495809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 34967aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 34977aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 34987aaa0b3bSManoj Naik if (unlikely(status != 0)) 34997aaa0b3bSManoj Naik goto out_eio; 350095a13f7bSTrond Myklebust ifdebug (XDR) 350102a2976cSChuck Lever pr_cont("%s%.*s ", 350202a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 350302a2976cSChuck Lever component->len, component->data); 35047aaa0b3bSManoj Naik } 35057aaa0b3bSManoj Naik out: 35067aaa0b3bSManoj Naik return status; 350733a43f28SAndy Adamson root_path: 350833a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 350933a43f28SAndy Adamson path->ncomponents = 1; 351033a43f28SAndy Adamson path->components[0].len=0; 351133a43f28SAndy Adamson path->components[0].data=NULL; 351202a2976cSChuck Lever dprintk("pathname4: /\n"); 351333a43f28SAndy Adamson goto out; 35147aaa0b3bSManoj Naik out_eio: 35157aaa0b3bSManoj Naik dprintk(" status %d", status); 35167aaa0b3bSManoj Naik status = -EIO; 35177aaa0b3bSManoj Naik goto out; 3518c0eae66eSBenny Halevy out_overflow: 3519c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3520c0eae66eSBenny Halevy return -EIO; 35217aaa0b3bSManoj Naik } 35227aaa0b3bSManoj Naik 35237aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3524683b57b4STrond Myklebust { 3525683b57b4STrond Myklebust int n; 35268687b63aSAl Viro __be32 *p; 3527683b57b4STrond Myklebust int status = -EIO; 3528683b57b4STrond Myklebust 3529683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3530683b57b4STrond Myklebust goto out; 3531683b57b4STrond Myklebust status = 0; 3532683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3533683b57b4STrond Myklebust goto out; 35348b7e3f49STrond Myklebust status = -EIO; 35358b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 35368b7e3f49STrond Myklebust if (unlikely(res == NULL)) 35378b7e3f49STrond Myklebust goto out; 353802a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 35397aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3540683b57b4STrond Myklebust if (unlikely(status != 0)) 3541683b57b4STrond Myklebust goto out; 3542c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3543c0eae66eSBenny Halevy if (unlikely(!p)) 3544c0eae66eSBenny Halevy goto out_overflow; 3545cccddf4fSBenny Halevy n = be32_to_cpup(p); 3546683b57b4STrond Myklebust if (n <= 0) 3547683b57b4STrond Myklebust goto out_eio; 3548809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3549464ad6b1SChuck Lever u32 m; 3550809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3551683b57b4STrond Myklebust 3552809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3553809b426cSTrond Myklebust break; 3554809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3555c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3556c0eae66eSBenny Halevy if (unlikely(!p)) 3557c0eae66eSBenny Halevy goto out_overflow; 3558cccddf4fSBenny Halevy m = be32_to_cpup(p); 35597aaa0b3bSManoj Naik 356002a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3561809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3562809b426cSTrond Myklebust struct nfs4_string *server; 3563809b426cSTrond Myklebust 3564809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3565464ad6b1SChuck Lever unsigned int i; 3566464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3567464ad6b1SChuck Lever "returned for location %u\n", 35683110ff80SHarvey Harrison __func__, 3569464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3570464ad6b1SChuck Lever m, res->nlocations); 35717aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 35722e42c3e2STrond Myklebust unsigned int len; 35737aaa0b3bSManoj Naik char *data; 35747aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3575683b57b4STrond Myklebust if (unlikely(status != 0)) 3576683b57b4STrond Myklebust goto out_eio; 35777aaa0b3bSManoj Naik } 3578809b426cSTrond Myklebust break; 35797aaa0b3bSManoj Naik } 3580809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3581809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3582809b426cSTrond Myklebust if (unlikely(status != 0)) 3583809b426cSTrond Myklebust goto out_eio; 3584809b426cSTrond Myklebust dprintk("%s ", server->data); 35857aaa0b3bSManoj Naik } 35867aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 35877aaa0b3bSManoj Naik if (unlikely(status != 0)) 35887aaa0b3bSManoj Naik goto out_eio; 3589683b57b4STrond Myklebust } 3590409924e4STrond Myklebust if (res->nlocations != 0) 359181934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3592683b57b4STrond Myklebust out: 35933110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3594683b57b4STrond Myklebust return status; 3595c0eae66eSBenny Halevy out_overflow: 3596c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3597683b57b4STrond Myklebust out_eio: 3598683b57b4STrond Myklebust status = -EIO; 3599683b57b4STrond Myklebust goto out; 3600683b57b4STrond Myklebust } 3601683b57b4STrond Myklebust 36021da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36031da177e4SLinus Torvalds { 36048687b63aSAl Viro __be32 *p; 36051da177e4SLinus Torvalds int status = 0; 36061da177e4SLinus Torvalds 36071da177e4SLinus Torvalds *res = 0; 36081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36091da177e4SLinus Torvalds return -EIO; 36101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3611c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3612c0eae66eSBenny Halevy if (unlikely(!p)) 3613c0eae66eSBenny Halevy goto out_overflow; 3614cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36161da177e4SLinus Torvalds } 36173110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36181da177e4SLinus Torvalds return status; 3619c0eae66eSBenny Halevy out_overflow: 3620c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3621c0eae66eSBenny Halevy return -EIO; 36221da177e4SLinus Torvalds } 36231da177e4SLinus Torvalds 36241da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36251da177e4SLinus Torvalds { 36268687b63aSAl Viro __be32 *p; 36271da177e4SLinus Torvalds int status = 0; 36281da177e4SLinus Torvalds 36291da177e4SLinus Torvalds *maxlink = 1; 36301da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 36311da177e4SLinus Torvalds return -EIO; 36321da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3633c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3634c0eae66eSBenny Halevy if (unlikely(!p)) 3635c0eae66eSBenny Halevy goto out_overflow; 3636cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 36371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 36381da177e4SLinus Torvalds } 36393110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 36401da177e4SLinus Torvalds return status; 3641c0eae66eSBenny Halevy out_overflow: 3642c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3643c0eae66eSBenny Halevy return -EIO; 36441da177e4SLinus Torvalds } 36451da177e4SLinus Torvalds 36461da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 36471da177e4SLinus Torvalds { 36488687b63aSAl Viro __be32 *p; 36491da177e4SLinus Torvalds int status = 0; 36501da177e4SLinus Torvalds 36511da177e4SLinus Torvalds *maxname = 1024; 36521da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 36531da177e4SLinus Torvalds return -EIO; 36541da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3655c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3656c0eae66eSBenny Halevy if (unlikely(!p)) 3657c0eae66eSBenny Halevy goto out_overflow; 3658cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 36591da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 36601da177e4SLinus Torvalds } 36613110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 36621da177e4SLinus Torvalds return status; 3663c0eae66eSBenny Halevy out_overflow: 3664c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3665c0eae66eSBenny Halevy return -EIO; 36661da177e4SLinus Torvalds } 36671da177e4SLinus Torvalds 36681da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36691da177e4SLinus Torvalds { 36708687b63aSAl Viro __be32 *p; 36711da177e4SLinus Torvalds int status = 0; 36721da177e4SLinus Torvalds 36731da177e4SLinus Torvalds *res = 1024; 36741da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 36751da177e4SLinus Torvalds return -EIO; 36761da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 36771da177e4SLinus Torvalds uint64_t maxread; 3678c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3679c0eae66eSBenny Halevy if (unlikely(!p)) 3680c0eae66eSBenny Halevy goto out_overflow; 3681cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 36821da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 36831da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 36841da177e4SLinus Torvalds *res = (uint32_t)maxread; 36851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 36861da177e4SLinus Torvalds } 36873110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 36881da177e4SLinus Torvalds return status; 3689c0eae66eSBenny Halevy out_overflow: 3690c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3691c0eae66eSBenny Halevy return -EIO; 36921da177e4SLinus Torvalds } 36931da177e4SLinus Torvalds 36941da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36951da177e4SLinus Torvalds { 36968687b63aSAl Viro __be32 *p; 36971da177e4SLinus Torvalds int status = 0; 36981da177e4SLinus Torvalds 36991da177e4SLinus Torvalds *res = 1024; 37001da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37011da177e4SLinus Torvalds return -EIO; 37021da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37031da177e4SLinus Torvalds uint64_t maxwrite; 3704c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3705c0eae66eSBenny Halevy if (unlikely(!p)) 3706c0eae66eSBenny Halevy goto out_overflow; 3707cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37081da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37091da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37101da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37111da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37121da177e4SLinus Torvalds } 37133110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37141da177e4SLinus Torvalds return status; 3715c0eae66eSBenny Halevy out_overflow: 3716c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3717c0eae66eSBenny Halevy return -EIO; 37181da177e4SLinus Torvalds } 37191da177e4SLinus Torvalds 3720bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37211da177e4SLinus Torvalds { 3722bca79478STrond Myklebust uint32_t tmp; 37238687b63aSAl Viro __be32 *p; 3724409924e4STrond Myklebust int ret = 0; 37251da177e4SLinus Torvalds 37261da177e4SLinus Torvalds *mode = 0; 37271da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 37281da177e4SLinus Torvalds return -EIO; 37291da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3730c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3731c0eae66eSBenny Halevy if (unlikely(!p)) 3732c0eae66eSBenny Halevy goto out_overflow; 3733cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3734bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 37351da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3736409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 37371da177e4SLinus Torvalds } 37383110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3739409924e4STrond Myklebust return ret; 3740c0eae66eSBenny Halevy out_overflow: 3741c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3742c0eae66eSBenny Halevy return -EIO; 37431da177e4SLinus Torvalds } 37441da177e4SLinus Torvalds 37451da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 37461da177e4SLinus Torvalds { 37478687b63aSAl Viro __be32 *p; 3748409924e4STrond Myklebust int ret = 0; 37491da177e4SLinus Torvalds 37501da177e4SLinus Torvalds *nlink = 1; 37511da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 37521da177e4SLinus Torvalds return -EIO; 37531da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3754c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3755c0eae66eSBenny Halevy if (unlikely(!p)) 3756c0eae66eSBenny Halevy goto out_overflow; 3757cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 37581da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3759409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 37601da177e4SLinus Torvalds } 37613110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3762409924e4STrond Myklebust return ret; 3763c0eae66eSBenny Halevy out_overflow: 3764c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3765c0eae66eSBenny Halevy return -EIO; 37661da177e4SLinus Torvalds } 37671da177e4SLinus Torvalds 376880e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3769e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 37706926afd1STrond Myklebust struct nfs4_string *owner_name) 37711da177e4SLinus Torvalds { 37728687b63aSAl Viro uint32_t len; 37738687b63aSAl Viro __be32 *p; 3774409924e4STrond Myklebust int ret = 0; 37751da177e4SLinus Torvalds 3776e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 37771da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 37781da177e4SLinus Torvalds return -EIO; 37791da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3780c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3781c0eae66eSBenny Halevy if (unlikely(!p)) 3782c0eae66eSBenny Halevy goto out_overflow; 3783cccddf4fSBenny Halevy len = be32_to_cpup(p); 3784c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3785c0eae66eSBenny Halevy if (unlikely(!p)) 3786c0eae66eSBenny Halevy goto out_overflow; 37876926afd1STrond Myklebust if (owner_name != NULL) { 37886926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 37896926afd1STrond Myklebust if (owner_name->data != NULL) { 37906926afd1STrond Myklebust owner_name->len = len; 37916926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 37926926afd1STrond Myklebust } 379380e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3794e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3795409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3796409924e4STrond Myklebust else 37971da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 37983110ff80SHarvey Harrison __func__); 37991da177e4SLinus Torvalds } else 3800fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38013110ff80SHarvey Harrison __func__, len); 38021da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38031da177e4SLinus Torvalds } 3804e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3805409924e4STrond Myklebust return ret; 3806c0eae66eSBenny Halevy out_overflow: 3807c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3808c0eae66eSBenny Halevy return -EIO; 38091da177e4SLinus Torvalds } 38101da177e4SLinus Torvalds 381180e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3812e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 38136926afd1STrond Myklebust struct nfs4_string *group_name) 38141da177e4SLinus Torvalds { 38158687b63aSAl Viro uint32_t len; 38168687b63aSAl Viro __be32 *p; 3817409924e4STrond Myklebust int ret = 0; 38181da177e4SLinus Torvalds 3819e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 38201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38211da177e4SLinus Torvalds return -EIO; 38221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3823c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3824c0eae66eSBenny Halevy if (unlikely(!p)) 3825c0eae66eSBenny Halevy goto out_overflow; 3826cccddf4fSBenny Halevy len = be32_to_cpup(p); 3827c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3828c0eae66eSBenny Halevy if (unlikely(!p)) 3829c0eae66eSBenny Halevy goto out_overflow; 38306926afd1STrond Myklebust if (group_name != NULL) { 38316926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 38326926afd1STrond Myklebust if (group_name->data != NULL) { 38336926afd1STrond Myklebust group_name->len = len; 38346926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 38356926afd1STrond Myklebust } 383680e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3837e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3838409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3839409924e4STrond Myklebust else 38401da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 38413110ff80SHarvey Harrison __func__); 38421da177e4SLinus Torvalds } else 3843fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38443110ff80SHarvey Harrison __func__, len); 38451da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 38461da177e4SLinus Torvalds } 3847e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3848409924e4STrond Myklebust return ret; 3849c0eae66eSBenny Halevy out_overflow: 3850c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3851c0eae66eSBenny Halevy return -EIO; 38521da177e4SLinus Torvalds } 38531da177e4SLinus Torvalds 38541da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 38551da177e4SLinus Torvalds { 38568687b63aSAl Viro uint32_t major = 0, minor = 0; 38578687b63aSAl Viro __be32 *p; 3858409924e4STrond Myklebust int ret = 0; 38591da177e4SLinus Torvalds 38601da177e4SLinus Torvalds *rdev = MKDEV(0,0); 38611da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 38621da177e4SLinus Torvalds return -EIO; 38631da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 38641da177e4SLinus Torvalds dev_t tmp; 38651da177e4SLinus Torvalds 3866c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3867c0eae66eSBenny Halevy if (unlikely(!p)) 3868c0eae66eSBenny Halevy goto out_overflow; 38696f723f77SBenny Halevy major = be32_to_cpup(p++); 3870cccddf4fSBenny Halevy minor = be32_to_cpup(p); 38711da177e4SLinus Torvalds tmp = MKDEV(major, minor); 38721da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 38731da177e4SLinus Torvalds *rdev = tmp; 38741da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3875409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 38761da177e4SLinus Torvalds } 38773110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3878409924e4STrond Myklebust return ret; 3879c0eae66eSBenny Halevy out_overflow: 3880c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3881c0eae66eSBenny Halevy return -EIO; 38821da177e4SLinus Torvalds } 38831da177e4SLinus Torvalds 38841da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 38851da177e4SLinus Torvalds { 38868687b63aSAl Viro __be32 *p; 38871da177e4SLinus Torvalds int status = 0; 38881da177e4SLinus Torvalds 38891da177e4SLinus Torvalds *res = 0; 38901da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 38911da177e4SLinus Torvalds return -EIO; 38921da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3893c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3894c0eae66eSBenny Halevy if (unlikely(!p)) 3895c0eae66eSBenny Halevy goto out_overflow; 3896cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 38971da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 38981da177e4SLinus Torvalds } 38993110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39001da177e4SLinus Torvalds return status; 3901c0eae66eSBenny Halevy out_overflow: 3902c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3903c0eae66eSBenny Halevy return -EIO; 39041da177e4SLinus Torvalds } 39051da177e4SLinus Torvalds 39061da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39071da177e4SLinus Torvalds { 39088687b63aSAl Viro __be32 *p; 39091da177e4SLinus Torvalds int status = 0; 39101da177e4SLinus Torvalds 39111da177e4SLinus Torvalds *res = 0; 39121da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39131da177e4SLinus Torvalds return -EIO; 39141da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3915c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3916c0eae66eSBenny Halevy if (unlikely(!p)) 3917c0eae66eSBenny Halevy goto out_overflow; 3918cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39191da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39201da177e4SLinus Torvalds } 39213110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39221da177e4SLinus Torvalds return status; 3923c0eae66eSBenny Halevy out_overflow: 3924c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3925c0eae66eSBenny Halevy return -EIO; 39261da177e4SLinus Torvalds } 39271da177e4SLinus Torvalds 39281da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39291da177e4SLinus Torvalds { 39308687b63aSAl Viro __be32 *p; 39311da177e4SLinus Torvalds int status = 0; 39321da177e4SLinus Torvalds 39331da177e4SLinus Torvalds *res = 0; 39341da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 39351da177e4SLinus Torvalds return -EIO; 39361da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3937c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3938c0eae66eSBenny Halevy if (unlikely(!p)) 3939c0eae66eSBenny Halevy goto out_overflow; 3940cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39411da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 39421da177e4SLinus Torvalds } 39433110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 39441da177e4SLinus Torvalds return status; 3945c0eae66eSBenny Halevy out_overflow: 3946c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3947c0eae66eSBenny Halevy return -EIO; 39481da177e4SLinus Torvalds } 39491da177e4SLinus Torvalds 39501da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 39511da177e4SLinus Torvalds { 39528687b63aSAl Viro __be32 *p; 3953409924e4STrond Myklebust int ret = 0; 39541da177e4SLinus Torvalds 39551da177e4SLinus Torvalds *used = 0; 39561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 39571da177e4SLinus Torvalds return -EIO; 39581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3959c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3960c0eae66eSBenny Halevy if (unlikely(!p)) 3961c0eae66eSBenny Halevy goto out_overflow; 3962cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 39631da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3964409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 39651da177e4SLinus Torvalds } 39663110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 39671da177e4SLinus Torvalds (unsigned long long)*used); 3968409924e4STrond Myklebust return ret; 3969c0eae66eSBenny Halevy out_overflow: 3970c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3971c0eae66eSBenny Halevy return -EIO; 39721da177e4SLinus Torvalds } 39731da177e4SLinus Torvalds 39741da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 39751da177e4SLinus Torvalds { 39768687b63aSAl Viro __be32 *p; 39771da177e4SLinus Torvalds uint64_t sec; 39781da177e4SLinus Torvalds uint32_t nsec; 39791da177e4SLinus Torvalds 3980c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3981c0eae66eSBenny Halevy if (unlikely(!p)) 3982c0eae66eSBenny Halevy goto out_overflow; 39833ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3984cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 39851da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 39861da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 39871da177e4SLinus Torvalds return 0; 3988c0eae66eSBenny Halevy out_overflow: 3989c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3990c0eae66eSBenny Halevy return -EIO; 39911da177e4SLinus Torvalds } 39921da177e4SLinus Torvalds 39931da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 39941da177e4SLinus Torvalds { 39951da177e4SLinus Torvalds int status = 0; 39961da177e4SLinus Torvalds 39971da177e4SLinus Torvalds time->tv_sec = 0; 39981da177e4SLinus Torvalds time->tv_nsec = 0; 39991da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40001da177e4SLinus Torvalds return -EIO; 40011da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40021da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4003409924e4STrond Myklebust if (status == 0) 4004409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40051da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40061da177e4SLinus Torvalds } 40073110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40081da177e4SLinus Torvalds return status; 40091da177e4SLinus Torvalds } 40101da177e4SLinus Torvalds 40111da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40121da177e4SLinus Torvalds { 40131da177e4SLinus Torvalds int status = 0; 40141da177e4SLinus Torvalds 40151da177e4SLinus Torvalds time->tv_sec = 0; 40161da177e4SLinus Torvalds time->tv_nsec = 0; 40171da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40181da177e4SLinus Torvalds return -EIO; 40191da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40201da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4021409924e4STrond Myklebust if (status == 0) 4022409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40231da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40241da177e4SLinus Torvalds } 40253110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40261da177e4SLinus Torvalds return status; 40271da177e4SLinus Torvalds } 40281da177e4SLinus Torvalds 402955b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 403055b6e774SRicardo Labiaga struct timespec *time) 403155b6e774SRicardo Labiaga { 403255b6e774SRicardo Labiaga int status = 0; 403355b6e774SRicardo Labiaga 403455b6e774SRicardo Labiaga time->tv_sec = 0; 403555b6e774SRicardo Labiaga time->tv_nsec = 0; 403655b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 403755b6e774SRicardo Labiaga return -EIO; 403855b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 403955b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 404055b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 404155b6e774SRicardo Labiaga } 404255b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 404355b6e774SRicardo Labiaga (long)time->tv_nsec); 404455b6e774SRicardo Labiaga return status; 404555b6e774SRicardo Labiaga } 404655b6e774SRicardo Labiaga 40471da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40481da177e4SLinus Torvalds { 40491da177e4SLinus Torvalds int status = 0; 40501da177e4SLinus Torvalds 40511da177e4SLinus Torvalds time->tv_sec = 0; 40521da177e4SLinus Torvalds time->tv_nsec = 0; 40531da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 40541da177e4SLinus Torvalds return -EIO; 40551da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 40561da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4057409924e4STrond Myklebust if (status == 0) 4058409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 40591da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 40601da177e4SLinus Torvalds } 40613110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 40621da177e4SLinus Torvalds return status; 40631da177e4SLinus Torvalds } 40641da177e4SLinus Torvalds 4065256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 40661da177e4SLinus Torvalds { 40671da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4068256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 40691da177e4SLinus Torvalds 40701da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4071fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4072fe82a183SChuck Lever "%u %c %u\n", 40733110ff80SHarvey Harrison __func__, 40741da177e4SLinus Torvalds attrwords << 2, 40751da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 40761da177e4SLinus Torvalds nwords << 2); 40771da177e4SLinus Torvalds return -EIO; 40781da177e4SLinus Torvalds } 40791da177e4SLinus Torvalds return 0; 40801da177e4SLinus Torvalds } 40811da177e4SLinus Torvalds 40821da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40831da177e4SLinus Torvalds { 40848687b63aSAl Viro __be32 *p; 40851da177e4SLinus Torvalds 4086c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4087c0eae66eSBenny Halevy if (unlikely(!p)) 4088c0eae66eSBenny Halevy goto out_overflow; 40896f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 40903ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4091cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 40921da177e4SLinus Torvalds return 0; 4093c0eae66eSBenny Halevy out_overflow: 4094c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4095c0eae66eSBenny Halevy return -EIO; 40961da177e4SLinus Torvalds } 40971da177e4SLinus Torvalds 40986168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 40991da177e4SLinus Torvalds { 41008687b63aSAl Viro __be32 *p; 41011da177e4SLinus Torvalds uint32_t supp, acc; 41021da177e4SLinus Torvalds int status; 41031da177e4SLinus Torvalds 41041da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41051da177e4SLinus Torvalds if (status) 41061da177e4SLinus Torvalds return status; 4107c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4108c0eae66eSBenny Halevy if (unlikely(!p)) 4109c0eae66eSBenny Halevy goto out_overflow; 41106f723f77SBenny Halevy supp = be32_to_cpup(p++); 4111cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41126168f62cSWeston Andros Adamson *supported = supp; 41136168f62cSWeston Andros Adamson *access = acc; 41141da177e4SLinus Torvalds return 0; 4115c0eae66eSBenny Halevy out_overflow: 4116c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4117c0eae66eSBenny Halevy return -EIO; 41181da177e4SLinus Torvalds } 41191da177e4SLinus Torvalds 412007d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41211da177e4SLinus Torvalds { 41228687b63aSAl Viro __be32 *p; 412307d30434SBenny Halevy 412407d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 412507d30434SBenny Halevy if (likely(p)) { 412607d30434SBenny Halevy memcpy(buf, p, len); 412707d30434SBenny Halevy return 0; 412807d30434SBenny Halevy } 412907d30434SBenny Halevy print_overflow_msg(__func__, xdr); 413007d30434SBenny Halevy return -EIO; 413107d30434SBenny Halevy } 413207d30434SBenny Halevy 413307d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 413407d30434SBenny Halevy { 41352d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 41361da177e4SLinus Torvalds } 41371da177e4SLinus Torvalds 41381da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 41391da177e4SLinus Torvalds { 41401da177e4SLinus Torvalds int status; 41411da177e4SLinus Torvalds 41421da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4143c1d51931STrond Myklebust if (status != -EIO) 4144c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 414507d30434SBenny Halevy if (!status) 414607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41471da177e4SLinus Torvalds return status; 41481da177e4SLinus Torvalds } 41491da177e4SLinus Torvalds 4150db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4151db942bbdSBenny Halevy { 4152cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 41531da177e4SLinus Torvalds } 41541da177e4SLinus Torvalds 41552f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 41562f2c63bcSTrond Myklebust { 41572f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 41582f2c63bcSTrond Myklebust } 41592f2c63bcSTrond Myklebust 41600b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 41611da177e4SLinus Torvalds { 41621da177e4SLinus Torvalds int status; 41631da177e4SLinus Torvalds 41641da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4165db942bbdSBenny Halevy if (!status) 41662f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 41671da177e4SLinus Torvalds return status; 41681da177e4SLinus Torvalds } 41691da177e4SLinus Torvalds 41701da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41711da177e4SLinus Torvalds { 41728687b63aSAl Viro __be32 *p; 41731da177e4SLinus Torvalds uint32_t bmlen; 41741da177e4SLinus Torvalds int status; 41751da177e4SLinus Torvalds 41761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 41771da177e4SLinus Torvalds if (status) 41781da177e4SLinus Torvalds return status; 41791da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 41801da177e4SLinus Torvalds return status; 4181c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4182c0eae66eSBenny Halevy if (unlikely(!p)) 4183c0eae66eSBenny Halevy goto out_overflow; 4184cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4185c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4186c0eae66eSBenny Halevy if (likely(p)) 41871da177e4SLinus Torvalds return 0; 4188c0eae66eSBenny Halevy out_overflow: 4189c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4190c0eae66eSBenny Halevy return -EIO; 41911da177e4SLinus Torvalds } 41921da177e4SLinus Torvalds 41931da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 41941da177e4SLinus Torvalds { 4195256e48bbSTrond Myklebust unsigned int savep; 4196dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 41971da177e4SLinus Torvalds int status; 41981da177e4SLinus Torvalds 41991da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42001da177e4SLinus Torvalds goto xdr_error; 42011da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42021da177e4SLinus Torvalds goto xdr_error; 42031da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42041da177e4SLinus Torvalds goto xdr_error; 42051da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42061da177e4SLinus Torvalds goto xdr_error; 4207264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4208264e6351SChuck Lever &res->fh_expire_type)) != 0) 4209264e6351SChuck Lever goto xdr_error; 42101da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42111da177e4SLinus Torvalds goto xdr_error; 42121da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42131da177e4SLinus Torvalds goto xdr_error; 42141da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42151da177e4SLinus Torvalds goto xdr_error; 42161da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42171da177e4SLinus Torvalds xdr_error: 42183110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42191da177e4SLinus Torvalds return status; 42201da177e4SLinus Torvalds } 42211da177e4SLinus Torvalds 42221da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42231da177e4SLinus Torvalds { 4224256e48bbSTrond Myklebust unsigned int savep; 4225dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42261da177e4SLinus Torvalds int status; 42271da177e4SLinus Torvalds 42281da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42291da177e4SLinus Torvalds goto xdr_error; 42301da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42311da177e4SLinus Torvalds goto xdr_error; 42321da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42331da177e4SLinus Torvalds goto xdr_error; 42341da177e4SLinus Torvalds 42351da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 42361da177e4SLinus Torvalds goto xdr_error; 42371da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 42381da177e4SLinus Torvalds goto xdr_error; 42391da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 42401da177e4SLinus Torvalds goto xdr_error; 42411da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 42421da177e4SLinus Torvalds goto xdr_error; 42431da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 42441da177e4SLinus Torvalds goto xdr_error; 42451da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 42461da177e4SLinus Torvalds goto xdr_error; 42471da177e4SLinus Torvalds 42481da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42491da177e4SLinus Torvalds xdr_error: 42503110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42511da177e4SLinus Torvalds return status; 42521da177e4SLinus Torvalds } 42531da177e4SLinus Torvalds 42541da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 42551da177e4SLinus Torvalds { 4256256e48bbSTrond Myklebust unsigned int savep; 4257dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42581da177e4SLinus Torvalds int status; 42591da177e4SLinus Torvalds 42601da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42611da177e4SLinus Torvalds goto xdr_error; 42621da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42631da177e4SLinus Torvalds goto xdr_error; 42641da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42651da177e4SLinus Torvalds goto xdr_error; 42661da177e4SLinus Torvalds 42671da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 42681da177e4SLinus Torvalds goto xdr_error; 42691da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 42701da177e4SLinus Torvalds goto xdr_error; 42711da177e4SLinus Torvalds 42721da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42731da177e4SLinus Torvalds xdr_error: 42743110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42751da177e4SLinus Torvalds return status; 42761da177e4SLinus Torvalds } 42771da177e4SLinus Torvalds 427888034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 427988034c3dSAndy Adamson uint32_t *bitmap, 428088034c3dSAndy Adamson uint64_t *res, 428188034c3dSAndy Adamson uint32_t hint_bit) 428288034c3dSAndy Adamson { 428388034c3dSAndy Adamson __be32 *p; 428488034c3dSAndy Adamson 428588034c3dSAndy Adamson *res = 0; 428688034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 428788034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 428888034c3dSAndy Adamson if (unlikely(!p)) 428988034c3dSAndy Adamson goto out_overflow; 429088034c3dSAndy Adamson xdr_decode_hyper(p, res); 429188034c3dSAndy Adamson } 429288034c3dSAndy Adamson return 0; 429388034c3dSAndy Adamson out_overflow: 429488034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 429588034c3dSAndy Adamson return -EIO; 429688034c3dSAndy Adamson } 429788034c3dSAndy Adamson 429888034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 429988034c3dSAndy Adamson struct nfs4_threshold *res) 430088034c3dSAndy Adamson { 4301256e48bbSTrond Myklebust __be32 *p; 4302256e48bbSTrond Myklebust unsigned int savep; 430388034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 430488034c3dSAndy Adamson int status; 430588034c3dSAndy Adamson 430688034c3dSAndy Adamson /* layout type */ 430788034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 430888034c3dSAndy Adamson if (unlikely(!p)) { 430988034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 431088034c3dSAndy Adamson return -EIO; 431188034c3dSAndy Adamson } 431288034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 431388034c3dSAndy Adamson 431488034c3dSAndy Adamson /* thi_hintset bitmap */ 431588034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 431688034c3dSAndy Adamson if (status < 0) 431788034c3dSAndy Adamson goto xdr_error; 431888034c3dSAndy Adamson 431988034c3dSAndy Adamson /* thi_hintlist length */ 432088034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 432188034c3dSAndy Adamson if (status < 0) 432288034c3dSAndy Adamson goto xdr_error; 432388034c3dSAndy Adamson /* thi_hintlist */ 432488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 432588034c3dSAndy Adamson if (status < 0) 432688034c3dSAndy Adamson goto xdr_error; 432788034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 432888034c3dSAndy Adamson if (status < 0) 432988034c3dSAndy Adamson goto xdr_error; 433088034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 433188034c3dSAndy Adamson THRESHOLD_RD_IO); 433288034c3dSAndy Adamson if (status < 0) 433388034c3dSAndy Adamson goto xdr_error; 433488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 433588034c3dSAndy Adamson THRESHOLD_WR_IO); 433688034c3dSAndy Adamson if (status < 0) 433788034c3dSAndy Adamson goto xdr_error; 433888034c3dSAndy Adamson 433988034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 434088034c3dSAndy Adamson res->bm = bitmap[0]; 434188034c3dSAndy Adamson 434288034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 434388034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 434488034c3dSAndy Adamson res->wr_io_sz); 434588034c3dSAndy Adamson xdr_error: 434688034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 434788034c3dSAndy Adamson return status; 434888034c3dSAndy Adamson } 434988034c3dSAndy Adamson 435088034c3dSAndy Adamson /* 435188034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 435288034c3dSAndy Adamson */ 435388034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 435488034c3dSAndy Adamson uint32_t *bitmap, 435588034c3dSAndy Adamson struct nfs4_threshold *res) 435688034c3dSAndy Adamson { 435788034c3dSAndy Adamson __be32 *p; 435888034c3dSAndy Adamson int status = 0; 435988034c3dSAndy Adamson uint32_t num; 436088034c3dSAndy Adamson 436188034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 436288034c3dSAndy Adamson return -EIO; 4363029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 43641549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 43651549210fSTrond Myklebust if (unlikely(res == NULL)) 43661549210fSTrond Myklebust return -EREMOTEIO; 436788034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 436888034c3dSAndy Adamson if (unlikely(!p)) 436988034c3dSAndy Adamson goto out_overflow; 437088034c3dSAndy Adamson num = be32_to_cpup(p); 437188034c3dSAndy Adamson if (num == 0) 437288034c3dSAndy Adamson return 0; 437388034c3dSAndy Adamson if (num > 1) 437488034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 437588034c3dSAndy Adamson "drivers per filesystem not supported\n", 437688034c3dSAndy Adamson __func__); 437788034c3dSAndy Adamson 437888034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4379029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 438088034c3dSAndy Adamson } 438188034c3dSAndy Adamson return status; 438288034c3dSAndy Adamson out_overflow: 438388034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 438488034c3dSAndy Adamson return -EIO; 438588034c3dSAndy Adamson } 438688034c3dSAndy Adamson 4387ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4388ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 43898b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 43906926afd1STrond Myklebust const struct nfs_server *server) 43911da177e4SLinus Torvalds { 4392bca79478STrond Myklebust int status; 4393bca79478STrond Myklebust umode_t fmode = 0; 4394ae42c70aSBryan Schumaker uint32_t type; 4395ee7b75fcSTrond Myklebust int32_t err; 43961da177e4SLinus Torvalds 4397f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4398f26c7a78STrond Myklebust if (status < 0) 43991da177e4SLinus Torvalds goto xdr_error; 4400409924e4STrond Myklebust fattr->mode = 0; 4401409924e4STrond Myklebust if (status != 0) { 4402409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4403409924e4STrond Myklebust fattr->valid |= status; 4404409924e4STrond Myklebust } 44051da177e4SLinus Torvalds 4406f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4407f26c7a78STrond Myklebust if (status < 0) 44081da177e4SLinus Torvalds goto xdr_error; 4409409924e4STrond Myklebust fattr->valid |= status; 4410f26c7a78STrond Myklebust 4411f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4412f26c7a78STrond Myklebust if (status < 0) 44131da177e4SLinus Torvalds goto xdr_error; 4414409924e4STrond Myklebust fattr->valid |= status; 4415f26c7a78STrond Myklebust 4416f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4417f26c7a78STrond Myklebust if (status < 0) 44181da177e4SLinus Torvalds goto xdr_error; 4419409924e4STrond Myklebust fattr->valid |= status; 4420f26c7a78STrond Myklebust 4421ee7b75fcSTrond Myklebust err = 0; 4422ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4423ae42c70aSBryan Schumaker if (status < 0) 4424ae42c70aSBryan Schumaker goto xdr_error; 4425ae42c70aSBryan Schumaker 4426ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4427ae42c70aSBryan Schumaker if (status < 0) 4428ae42c70aSBryan Schumaker goto xdr_error; 4429ae42c70aSBryan Schumaker 4430f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4431f26c7a78STrond Myklebust if (status < 0) 44321da177e4SLinus Torvalds goto xdr_error; 4433409924e4STrond Myklebust fattr->valid |= status; 4434f26c7a78STrond Myklebust 44358b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4436f26c7a78STrond Myklebust if (status < 0) 4437683b57b4STrond Myklebust goto xdr_error; 4438409924e4STrond Myklebust fattr->valid |= status; 4439f26c7a78STrond Myklebust 4440f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4441f26c7a78STrond Myklebust if (status < 0) 44421da177e4SLinus Torvalds goto xdr_error; 4443409924e4STrond Myklebust if (status != 0) { 44441da177e4SLinus Torvalds fattr->mode |= fmode; 4445409924e4STrond Myklebust fattr->valid |= status; 4446409924e4STrond Myklebust } 4447f26c7a78STrond Myklebust 4448f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4449f26c7a78STrond Myklebust if (status < 0) 44501da177e4SLinus Torvalds goto xdr_error; 4451409924e4STrond Myklebust fattr->valid |= status; 4452f26c7a78STrond Myklebust 44536926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4454f26c7a78STrond Myklebust if (status < 0) 44551da177e4SLinus Torvalds goto xdr_error; 4456409924e4STrond Myklebust fattr->valid |= status; 4457f26c7a78STrond Myklebust 44586926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4459f26c7a78STrond Myklebust if (status < 0) 44601da177e4SLinus Torvalds goto xdr_error; 4461409924e4STrond Myklebust fattr->valid |= status; 4462f26c7a78STrond Myklebust 4463f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4464f26c7a78STrond Myklebust if (status < 0) 44651da177e4SLinus Torvalds goto xdr_error; 4466409924e4STrond Myklebust fattr->valid |= status; 4467f26c7a78STrond Myklebust 4468f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4469f26c7a78STrond Myklebust if (status < 0) 44701da177e4SLinus Torvalds goto xdr_error; 4471409924e4STrond Myklebust fattr->valid |= status; 4472f26c7a78STrond Myklebust 4473f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4474f26c7a78STrond Myklebust if (status < 0) 44751da177e4SLinus Torvalds goto xdr_error; 4476409924e4STrond Myklebust fattr->valid |= status; 4477f26c7a78STrond Myklebust 4478f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4479f26c7a78STrond Myklebust if (status < 0) 44801da177e4SLinus Torvalds goto xdr_error; 4481409924e4STrond Myklebust fattr->valid |= status; 4482f26c7a78STrond Myklebust 4483f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4484f26c7a78STrond Myklebust if (status < 0) 44851da177e4SLinus Torvalds goto xdr_error; 4486409924e4STrond Myklebust fattr->valid |= status; 4487f26c7a78STrond Myklebust 448828331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4489f26c7a78STrond Myklebust if (status < 0) 449099baf625SManoj Naik goto xdr_error; 4491409924e4STrond Myklebust fattr->valid |= status; 4492f26c7a78STrond Myklebust 449388034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 449488034c3dSAndy Adamson if (status < 0) 449588034c3dSAndy Adamson goto xdr_error; 449688034c3dSAndy Adamson 4497ae42c70aSBryan Schumaker xdr_error: 4498ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4499ae42c70aSBryan Schumaker return status; 4500ae42c70aSBryan Schumaker } 4501ae42c70aSBryan Schumaker 4502ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45038b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 45048b7e3f49STrond Myklebust const struct nfs_server *server) 4505ae42c70aSBryan Schumaker { 4506256e48bbSTrond Myklebust unsigned int savep; 4507ae42c70aSBryan Schumaker uint32_t attrlen, 4508dae100c2SFred Isaman bitmap[3] = {0}; 4509ae42c70aSBryan Schumaker int status; 4510ae42c70aSBryan Schumaker 4511ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4512ae42c70aSBryan Schumaker if (status < 0) 4513ae42c70aSBryan Schumaker goto xdr_error; 4514ae42c70aSBryan Schumaker 4515ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4516ae42c70aSBryan Schumaker if (status < 0) 4517ae42c70aSBryan Schumaker goto xdr_error; 4518ae42c70aSBryan Schumaker 4519ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4520ae42c70aSBryan Schumaker if (status < 0) 4521ae42c70aSBryan Schumaker goto xdr_error; 4522ae42c70aSBryan Schumaker 45238b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4524ae42c70aSBryan Schumaker if (status < 0) 4525ae42c70aSBryan Schumaker goto xdr_error; 4526ae42c70aSBryan Schumaker 4527f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 45281da177e4SLinus Torvalds xdr_error: 45293110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 45301da177e4SLinus Torvalds return status; 45311da177e4SLinus Torvalds } 45321da177e4SLinus Torvalds 4533ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45346926afd1STrond Myklebust const struct nfs_server *server) 4535ae42c70aSBryan Schumaker { 45368b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4537ae42c70aSBryan Schumaker } 45381da177e4SLinus Torvalds 4539504913fbSAndy Adamson /* 4540504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4541504913fbSAndy Adamson * one layout driver per file system. 4542504913fbSAndy Adamson */ 4543504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4544504913fbSAndy Adamson uint32_t *layouttype) 4545504913fbSAndy Adamson { 4546504913fbSAndy Adamson uint32_t *p; 4547504913fbSAndy Adamson int num; 4548504913fbSAndy Adamson 4549504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4550504913fbSAndy Adamson if (unlikely(!p)) 4551504913fbSAndy Adamson goto out_overflow; 4552504913fbSAndy Adamson num = be32_to_cpup(p); 4553504913fbSAndy Adamson 4554504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4555504913fbSAndy Adamson if (num == 0) { 4556504913fbSAndy Adamson *layouttype = 0; 4557504913fbSAndy Adamson return 0; 4558504913fbSAndy Adamson } 4559504913fbSAndy Adamson if (num > 1) 4560a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4561a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4562504913fbSAndy Adamson 4563504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4564504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4565504913fbSAndy Adamson if (unlikely(!p)) 4566504913fbSAndy Adamson goto out_overflow; 4567504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4568504913fbSAndy Adamson return 0; 4569504913fbSAndy Adamson out_overflow: 4570504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4571504913fbSAndy Adamson return -EIO; 4572504913fbSAndy Adamson } 4573504913fbSAndy Adamson 4574504913fbSAndy Adamson /* 4575504913fbSAndy Adamson * The type of file system exported. 4576504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4577504913fbSAndy Adamson */ 4578504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4579504913fbSAndy Adamson uint32_t *layouttype) 4580504913fbSAndy Adamson { 4581504913fbSAndy Adamson int status = 0; 4582504913fbSAndy Adamson 4583504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4584504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4585504913fbSAndy Adamson return -EIO; 4586504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4587504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4588504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4589504913fbSAndy Adamson } else 4590504913fbSAndy Adamson *layouttype = 0; 4591504913fbSAndy Adamson return status; 4592504913fbSAndy Adamson } 4593504913fbSAndy Adamson 4594dae100c2SFred Isaman /* 4595dae100c2SFred Isaman * The prefered block size for layout directed io 4596dae100c2SFred Isaman */ 4597dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4598dae100c2SFred Isaman uint32_t *res) 4599dae100c2SFred Isaman { 4600dae100c2SFred Isaman __be32 *p; 4601dae100c2SFred Isaman 4602dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4603dae100c2SFred Isaman *res = 0; 4604dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4605dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4606dae100c2SFred Isaman if (unlikely(!p)) { 4607dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4608dae100c2SFred Isaman return -EIO; 4609dae100c2SFred Isaman } 4610dae100c2SFred Isaman *res = be32_to_cpup(p); 4611dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4612dae100c2SFred Isaman } 4613dae100c2SFred Isaman return 0; 4614dae100c2SFred Isaman } 4615dae100c2SFred Isaman 46161da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 46171da177e4SLinus Torvalds { 4618256e48bbSTrond Myklebust unsigned int savep; 4619dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 46201da177e4SLinus Torvalds int status; 46211da177e4SLinus Torvalds 46221da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 46231da177e4SLinus Torvalds goto xdr_error; 46241da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 46251da177e4SLinus Torvalds goto xdr_error; 46261da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 46271da177e4SLinus Torvalds goto xdr_error; 46281da177e4SLinus Torvalds 46291da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 46301da177e4SLinus Torvalds 46311da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 46321da177e4SLinus Torvalds goto xdr_error; 46331da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 46341da177e4SLinus Torvalds goto xdr_error; 46351da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 46361da177e4SLinus Torvalds goto xdr_error; 46371da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 46381da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 46391da177e4SLinus Torvalds goto xdr_error; 46401da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 464155b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 464255b6e774SRicardo Labiaga if (status != 0) 464355b6e774SRicardo Labiaga goto xdr_error; 4644504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4645504913fbSAndy Adamson if (status != 0) 4646504913fbSAndy Adamson goto xdr_error; 4647dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4648dae100c2SFred Isaman if (status) 4649dae100c2SFred Isaman goto xdr_error; 46501da177e4SLinus Torvalds 46511da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46521da177e4SLinus Torvalds xdr_error: 46533110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46541da177e4SLinus Torvalds return status; 46551da177e4SLinus Torvalds } 46561da177e4SLinus Torvalds 46571da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46581da177e4SLinus Torvalds { 46598687b63aSAl Viro __be32 *p; 46601da177e4SLinus Torvalds uint32_t len; 46611da177e4SLinus Torvalds int status; 46621da177e4SLinus Torvalds 46639936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46649936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46659936781dSTrond Myklebust 46661da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46671da177e4SLinus Torvalds if (status) 46681da177e4SLinus Torvalds return status; 46691da177e4SLinus Torvalds 4670c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4671c0eae66eSBenny Halevy if (unlikely(!p)) 4672c0eae66eSBenny Halevy goto out_overflow; 4673cccddf4fSBenny Halevy len = be32_to_cpup(p); 46741da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46751da177e4SLinus Torvalds return -EIO; 46761da177e4SLinus Torvalds fh->size = len; 4677c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4678c0eae66eSBenny Halevy if (unlikely(!p)) 4679c0eae66eSBenny Halevy goto out_overflow; 468099398d06SBenny Halevy memcpy(fh->data, p, len); 46811da177e4SLinus Torvalds return 0; 4682c0eae66eSBenny Halevy out_overflow: 4683c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4684c0eae66eSBenny Halevy return -EIO; 46851da177e4SLinus Torvalds } 46861da177e4SLinus Torvalds 46871da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 46881da177e4SLinus Torvalds { 46891da177e4SLinus Torvalds int status; 46901da177e4SLinus Torvalds 46911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 46921da177e4SLinus Torvalds if (status) 46931da177e4SLinus Torvalds return status; 46941da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 46951da177e4SLinus Torvalds } 46961da177e4SLinus Torvalds 46971da177e4SLinus Torvalds /* 46981da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 46991da177e4SLinus Torvalds */ 4700911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 47011da177e4SLinus Torvalds { 4702911d1aafSTrond Myklebust uint64_t offset, length, clientid; 47038687b63aSAl Viro __be32 *p; 4704911d1aafSTrond Myklebust uint32_t namelen, type; 47051da177e4SLinus Torvalds 4706babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4707c0eae66eSBenny Halevy if (unlikely(!p)) 4708c0eae66eSBenny Halevy goto out_overflow; 4709babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 47103ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4711babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4712babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4713911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4714911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4715911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4716911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4717911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4718911d1aafSTrond Myklebust if (type & 1) 4719911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4720911d1aafSTrond Myklebust fl->fl_pid = 0; 4721911d1aafSTrond Myklebust } 4722babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4723babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4724babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4725c0eae66eSBenny Halevy if (likely(p)) 47261da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4727c0eae66eSBenny Halevy out_overflow: 4728c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4729c0eae66eSBenny Halevy return -EIO; 47301da177e4SLinus Torvalds } 47311da177e4SLinus Torvalds 4732911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 47331da177e4SLinus Torvalds { 47341da177e4SLinus Torvalds int status; 47351da177e4SLinus Torvalds 47361da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4737c1d51931STrond Myklebust if (status == -EIO) 4738c1d51931STrond Myklebust goto out; 47391da177e4SLinus Torvalds if (status == 0) { 474007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 474107d30434SBenny Halevy if (unlikely(status)) 474207d30434SBenny Halevy goto out; 47431da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4744c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4745c1d51931STrond Myklebust if (res->open_seqid != NULL) 4746c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4747c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4748c1d51931STrond Myklebust out: 47491da177e4SLinus Torvalds return status; 47501da177e4SLinus Torvalds } 47511da177e4SLinus Torvalds 4752911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47531da177e4SLinus Torvalds { 47541da177e4SLinus Torvalds int status; 47551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47561da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4757911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47581da177e4SLinus Torvalds return status; 47591da177e4SLinus Torvalds } 47601da177e4SLinus Torvalds 4761911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47621da177e4SLinus Torvalds { 47631da177e4SLinus Torvalds int status; 47641da177e4SLinus Torvalds 47651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4766c1d51931STrond Myklebust if (status != -EIO) 4767c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 476807d30434SBenny Halevy if (status == 0) 476907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47701da177e4SLinus Torvalds return status; 47711da177e4SLinus Torvalds } 47721da177e4SLinus Torvalds 4773d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4774d3c7b7ccSTrond Myklebust { 4775d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4776d3c7b7ccSTrond Myklebust } 4777d3c7b7ccSTrond Myklebust 47781da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47791da177e4SLinus Torvalds { 47801da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47811da177e4SLinus Torvalds } 47821da177e4SLinus Torvalds 47831da177e4SLinus Torvalds /* This is too sick! */ 47841da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47851da177e4SLinus Torvalds { 47868687b63aSAl Viro __be32 *p; 47871da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 47881da177e4SLinus Torvalds 4789c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4790c0eae66eSBenny Halevy if (unlikely(!p)) 4791c0eae66eSBenny Halevy goto out_overflow; 47926f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 47931da177e4SLinus Torvalds switch (limit_type) { 47941da177e4SLinus Torvalds case 1: 4795cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 47961da177e4SLinus Torvalds break; 47971da177e4SLinus Torvalds case 2: 47986f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4799cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 48001da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 48011da177e4SLinus Torvalds } 48021da177e4SLinus Torvalds return 0; 4803c0eae66eSBenny Halevy out_overflow: 4804c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4805c0eae66eSBenny Halevy return -EIO; 48061da177e4SLinus Torvalds } 48071da177e4SLinus Torvalds 48081da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 48091da177e4SLinus Torvalds { 48108687b63aSAl Viro __be32 *p; 48111da177e4SLinus Torvalds uint32_t delegation_type; 481207d30434SBenny Halevy int status; 48131da177e4SLinus Torvalds 4814c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4815c0eae66eSBenny Halevy if (unlikely(!p)) 4816c0eae66eSBenny Halevy goto out_overflow; 4817cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 48181da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 48191da177e4SLinus Torvalds res->delegation_type = 0; 48201da177e4SLinus Torvalds return 0; 48211da177e4SLinus Torvalds } 482207d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 482307d30434SBenny Halevy if (unlikely(status)) 482407d30434SBenny Halevy return status; 4825c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4826c0eae66eSBenny Halevy if (unlikely(!p)) 4827c0eae66eSBenny Halevy goto out_overflow; 4828cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 482905d564feSAndy Adamson 48301da177e4SLinus Torvalds switch (delegation_type) { 48311da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 48321da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 48331da177e4SLinus Torvalds break; 48341da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 48351da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 48361da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 48371da177e4SLinus Torvalds return -EIO; 48381da177e4SLinus Torvalds } 48397539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4840c0eae66eSBenny Halevy out_overflow: 4841c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4842c0eae66eSBenny Halevy return -EIO; 48431da177e4SLinus Torvalds } 48441da177e4SLinus Torvalds 48451da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 48461da177e4SLinus Torvalds { 48478687b63aSAl Viro __be32 *p; 4848aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 48491da177e4SLinus Torvalds int status; 48501da177e4SLinus Torvalds 48511da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4852c1d51931STrond Myklebust if (status != -EIO) 4853c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 485407d30434SBenny Halevy if (!status) 485507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 485607d30434SBenny Halevy if (unlikely(status)) 48571da177e4SLinus Torvalds return status; 48581da177e4SLinus Torvalds 48591da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48601da177e4SLinus Torvalds 4861c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4862c0eae66eSBenny Halevy if (unlikely(!p)) 4863c0eae66eSBenny Halevy goto out_overflow; 48646f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4865cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48661da177e4SLinus Torvalds if (bmlen > 10) 48671da177e4SLinus Torvalds goto xdr_error; 48681da177e4SLinus Torvalds 4869c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4870c0eae66eSBenny Halevy if (unlikely(!p)) 4871c0eae66eSBenny Halevy goto out_overflow; 4872aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4873aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48746f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4875aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4876aa53ed54SJeff Layton res->attrset[i] = 0; 4877aa53ed54SJeff Layton 48781da177e4SLinus Torvalds return decode_delegation(xdr, res); 48791da177e4SLinus Torvalds xdr_error: 48803110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48811da177e4SLinus Torvalds return -EIO; 4882c0eae66eSBenny Halevy out_overflow: 4883c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4884c0eae66eSBenny Halevy return -EIO; 48851da177e4SLinus Torvalds } 48861da177e4SLinus Torvalds 48871da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 48881da177e4SLinus Torvalds { 48891da177e4SLinus Torvalds int status; 48901da177e4SLinus Torvalds 48911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4892c1d51931STrond Myklebust if (status != -EIO) 4893c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 489407d30434SBenny Halevy if (!status) 489507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48961da177e4SLinus Torvalds return status; 48971da177e4SLinus Torvalds } 48981da177e4SLinus Torvalds 48991da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 49001da177e4SLinus Torvalds { 49011da177e4SLinus Torvalds int status; 49021da177e4SLinus Torvalds 49031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4904c1d51931STrond Myklebust if (status != -EIO) 4905c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 490607d30434SBenny Halevy if (!status) 490707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49081da177e4SLinus Torvalds return status; 49091da177e4SLinus Torvalds } 49101da177e4SLinus Torvalds 49111da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 49121da177e4SLinus Torvalds { 49131da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 49141da177e4SLinus Torvalds } 49151da177e4SLinus Torvalds 49161da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 49171da177e4SLinus Torvalds { 49181da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 49191da177e4SLinus Torvalds } 49201da177e4SLinus Torvalds 49211da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 49221da177e4SLinus Torvalds { 49238687b63aSAl Viro __be32 *p; 492464bd577eSTrond Myklebust uint32_t count, eof, recvd; 49251da177e4SLinus Torvalds int status; 49261da177e4SLinus Torvalds 49271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 49281da177e4SLinus Torvalds if (status) 49291da177e4SLinus Torvalds return status; 4930c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4931c0eae66eSBenny Halevy if (unlikely(!p)) 4932c0eae66eSBenny Halevy goto out_overflow; 49336f723f77SBenny Halevy eof = be32_to_cpup(p++); 4934cccddf4fSBenny Halevy count = be32_to_cpup(p); 493564bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 49361da177e4SLinus Torvalds if (count > recvd) { 4937fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 49381da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 49391da177e4SLinus Torvalds count = recvd; 49401da177e4SLinus Torvalds eof = 0; 49411da177e4SLinus Torvalds } 49421da177e4SLinus Torvalds res->eof = eof; 49431da177e4SLinus Torvalds res->count = count; 49441da177e4SLinus Torvalds return 0; 4945c0eae66eSBenny Halevy out_overflow: 4946c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4947c0eae66eSBenny Halevy return -EIO; 49481da177e4SLinus Torvalds } 49491da177e4SLinus Torvalds 49501da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 49511da177e4SLinus Torvalds { 4952bcecff77SChuck Lever int status; 4953cd93710eSChuck Lever __be32 verf[2]; 49541da177e4SLinus Torvalds 49551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4956db942bbdSBenny Halevy if (!status) 4957db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4958db942bbdSBenny Halevy if (unlikely(status)) 49591da177e4SLinus Torvalds return status; 4960cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 496144109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 4962cd93710eSChuck Lever __func__, verf[0], verf[1]); 496364bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 49641da177e4SLinus Torvalds } 49651da177e4SLinus Torvalds 49661da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49671da177e4SLinus Torvalds { 49681da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 4969bcecff77SChuck Lever u32 len, recvd; 49708687b63aSAl Viro __be32 *p; 49711da177e4SLinus Torvalds int status; 49721da177e4SLinus Torvalds 49731da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49741da177e4SLinus Torvalds if (status) 49751da177e4SLinus Torvalds return status; 49761da177e4SLinus Torvalds 49771da177e4SLinus Torvalds /* Convert length of symlink */ 4978c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4979c0eae66eSBenny Halevy if (unlikely(!p)) 4980c0eae66eSBenny Halevy goto out_overflow; 4981cccddf4fSBenny Halevy len = be32_to_cpup(p); 49821da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4983fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49841da177e4SLinus Torvalds return -ENAMETOOLONG; 49851da177e4SLinus Torvalds } 498664bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 49871da177e4SLinus Torvalds if (recvd < len) { 4988fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 49891da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 49901da177e4SLinus Torvalds return -EIO; 49911da177e4SLinus Torvalds } 49921da177e4SLinus Torvalds /* 49931da177e4SLinus Torvalds * The XDR encode routine has set things up so that 49941da177e4SLinus Torvalds * the link text will be copied directly into the 49951da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 49961da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 49971da177e4SLinus Torvalds * null-termination). 49981da177e4SLinus Torvalds */ 4999b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 50001da177e4SLinus Torvalds return 0; 5001c0eae66eSBenny Halevy out_overflow: 5002c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5003c0eae66eSBenny Halevy return -EIO; 50041da177e4SLinus Torvalds } 50051da177e4SLinus Torvalds 50061da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 50071da177e4SLinus Torvalds { 50081da177e4SLinus Torvalds int status; 50091da177e4SLinus Torvalds 50101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 50111da177e4SLinus Torvalds if (status) 50121da177e4SLinus Torvalds goto out; 50131da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 50141da177e4SLinus Torvalds out: 50151da177e4SLinus Torvalds return status; 50161da177e4SLinus Torvalds } 50171da177e4SLinus Torvalds 50181da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 50191da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 50201da177e4SLinus Torvalds { 50211da177e4SLinus Torvalds int status; 50221da177e4SLinus Torvalds 50231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 50241da177e4SLinus Torvalds if (status) 50251da177e4SLinus Torvalds goto out; 50261da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 50271da177e4SLinus Torvalds goto out; 50281da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 50291da177e4SLinus Torvalds out: 50301da177e4SLinus Torvalds return status; 50311da177e4SLinus Torvalds } 50321da177e4SLinus Torvalds 50331da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50341da177e4SLinus Torvalds { 50351da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50361da177e4SLinus Torvalds } 50371da177e4SLinus Torvalds 503856ae19f3STrond Myklebust static int 503956ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 504056ae19f3STrond Myklebust { 504156ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 504256ae19f3STrond Myklebust } 504356ae19f3STrond Myklebust 5044029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5045bf118a34SAndy Adamson struct nfs_getaclres *res) 5046029d105eSJ. Bruce Fields { 5047256e48bbSTrond Myklebust unsigned int savep; 5048029d105eSJ. Bruce Fields uint32_t attrlen, 5049dae100c2SFred Isaman bitmap[3] = {0}; 5050029d105eSJ. Bruce Fields int status; 5051cff298c7STrond Myklebust unsigned int pg_offset; 5052029d105eSJ. Bruce Fields 5053bf118a34SAndy Adamson res->acl_len = 0; 5054029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5055029d105eSJ. Bruce Fields goto out; 50565a006899SSachin Prabhu 5057519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5058519d3959STrond Myklebust 5059cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5060cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 50615a006899SSachin Prabhu 5062029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5063029d105eSJ. Bruce Fields goto out; 5064029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5065029d105eSJ. Bruce Fields goto out; 5066029d105eSJ. Bruce Fields 5067029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5068029d105eSJ. Bruce Fields return -EIO; 5069029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5070029d105eSJ. Bruce Fields 5071bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5072bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5073bf118a34SAndy Adamson * variable length bitmaps.*/ 5074cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5075519d3959STrond Myklebust res->acl_len = attrlen; 50761f1ea6c2STrond Myklebust 50771f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 50781f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 50791f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 50801f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5081519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5082cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5083029d105eSJ. Bruce Fields } 50848c233cf9SJ. Bruce Fields } else 50858c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5086029d105eSJ. Bruce Fields 5087029d105eSJ. Bruce Fields out: 5088029d105eSJ. Bruce Fields return status; 5089029d105eSJ. Bruce Fields } 5090029d105eSJ. Bruce Fields 50911da177e4SLinus Torvalds static int 50921da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 50931da177e4SLinus Torvalds { 50941da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 50951da177e4SLinus Torvalds } 50961da177e4SLinus Torvalds 50979e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 50981da177e4SLinus Torvalds { 50998687b63aSAl Viro __be32 *p; 51001da177e4SLinus Torvalds uint32_t bmlen; 51011da177e4SLinus Torvalds int status; 51021da177e4SLinus Torvalds 51031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 51041da177e4SLinus Torvalds if (status) 51051da177e4SLinus Torvalds return status; 5106c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5107c0eae66eSBenny Halevy if (unlikely(!p)) 5108c0eae66eSBenny Halevy goto out_overflow; 5109cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5110c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5111c0eae66eSBenny Halevy if (likely(p)) 51121da177e4SLinus Torvalds return 0; 5113c0eae66eSBenny Halevy out_overflow: 5114c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5115c0eae66eSBenny Halevy return -EIO; 51161da177e4SLinus Torvalds } 51171da177e4SLinus Torvalds 5118bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 51191da177e4SLinus Torvalds { 51208687b63aSAl Viro __be32 *p; 51211da177e4SLinus Torvalds uint32_t opnum; 51221da177e4SLinus Torvalds int32_t nfserr; 51231da177e4SLinus Torvalds 5124c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5125c0eae66eSBenny Halevy if (unlikely(!p)) 5126c0eae66eSBenny Halevy goto out_overflow; 51276f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51281da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5129fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51301da177e4SLinus Torvalds " %d\n", opnum); 51311da177e4SLinus Torvalds return -EIO; 51321da177e4SLinus Torvalds } 5133cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51341da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5135c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5136c0eae66eSBenny Halevy if (unlikely(!p)) 5137c0eae66eSBenny Halevy goto out_overflow; 5138bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5139bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51401da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51411da177e4SLinus Torvalds uint32_t len; 51421da177e4SLinus Torvalds 51431da177e4SLinus Torvalds /* skip netid string */ 5144c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5145c0eae66eSBenny Halevy if (unlikely(!p)) 5146c0eae66eSBenny Halevy goto out_overflow; 5147cccddf4fSBenny Halevy len = be32_to_cpup(p); 5148c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5149c0eae66eSBenny Halevy if (unlikely(!p)) 5150c0eae66eSBenny Halevy goto out_overflow; 51511da177e4SLinus Torvalds 51521da177e4SLinus Torvalds /* skip uaddr string */ 5153c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5154c0eae66eSBenny Halevy if (unlikely(!p)) 5155c0eae66eSBenny Halevy goto out_overflow; 5156cccddf4fSBenny Halevy len = be32_to_cpup(p); 5157c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5158c0eae66eSBenny Halevy if (unlikely(!p)) 5159c0eae66eSBenny Halevy goto out_overflow; 51601da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51611da177e4SLinus Torvalds } else 5162856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51631da177e4SLinus Torvalds 51641da177e4SLinus Torvalds return 0; 5165c0eae66eSBenny Halevy out_overflow: 5166c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5167c0eae66eSBenny Halevy return -EIO; 51681da177e4SLinus Torvalds } 51691da177e4SLinus Torvalds 51701da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51711da177e4SLinus Torvalds { 51721da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51731da177e4SLinus Torvalds } 51741da177e4SLinus Torvalds 51751da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51761da177e4SLinus Torvalds { 51778687b63aSAl Viro __be32 *p; 51781da177e4SLinus Torvalds int status; 51791da177e4SLinus Torvalds 51801da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51811da177e4SLinus Torvalds if (status) 51821da177e4SLinus Torvalds return status; 51831da177e4SLinus Torvalds 51842f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5185c0eae66eSBenny Halevy if (unlikely(!p)) 5186c0eae66eSBenny Halevy goto out_overflow; 51876f723f77SBenny Halevy res->count = be32_to_cpup(p++); 51886f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 51892f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5190c0eae66eSBenny Halevy out_overflow: 5191c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5192c0eae66eSBenny Halevy return -EIO; 51931da177e4SLinus Torvalds } 51941da177e4SLinus Torvalds 51951da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 51961da177e4SLinus Torvalds { 51971da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 51981da177e4SLinus Torvalds } 51991da177e4SLinus Torvalds 5200fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5201fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 52025a5ea0d4SBryan Schumaker { 5203fb15b26fSChuck Lever u32 oid_len; 52045a5ea0d4SBryan Schumaker __be32 *p; 52055a5ea0d4SBryan Schumaker 52065a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52075a5ea0d4SBryan Schumaker if (unlikely(!p)) 52085a5ea0d4SBryan Schumaker goto out_overflow; 5209fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5210fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 52115a5ea0d4SBryan Schumaker goto out_err; 52125a5ea0d4SBryan Schumaker 5213fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 52145a5ea0d4SBryan Schumaker if (unlikely(!p)) 52155a5ea0d4SBryan Schumaker goto out_overflow; 5216fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5217fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 52185a5ea0d4SBryan Schumaker 52195a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 52205a5ea0d4SBryan Schumaker if (unlikely(!p)) 52215a5ea0d4SBryan Schumaker goto out_overflow; 5222fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5223fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 52245a5ea0d4SBryan Schumaker 52255a5ea0d4SBryan Schumaker return 0; 52265a5ea0d4SBryan Schumaker 52275a5ea0d4SBryan Schumaker out_overflow: 52285a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52295a5ea0d4SBryan Schumaker return -EIO; 52305a5ea0d4SBryan Schumaker out_err: 52315a5ea0d4SBryan Schumaker return -EINVAL; 52325a5ea0d4SBryan Schumaker } 52335a5ea0d4SBryan Schumaker 523431e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52355a5ea0d4SBryan Schumaker { 5236fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5237fb15b26fSChuck Lever unsigned int i, num_flavors; 52385a5ea0d4SBryan Schumaker int status; 52395a5ea0d4SBryan Schumaker __be32 *p; 52405a5ea0d4SBryan Schumaker 52415a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52425a5ea0d4SBryan Schumaker if (unlikely(!p)) 52435a5ea0d4SBryan Schumaker goto out_overflow; 52445a5ea0d4SBryan Schumaker 5245c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5246c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5247c3dfc280SBryan Schumaker 5248c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52495a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5250c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52515a5ea0d4SBryan Schumaker break; 52525a5ea0d4SBryan Schumaker 52535a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52545a5ea0d4SBryan Schumaker if (unlikely(!p)) 52555a5ea0d4SBryan Schumaker goto out_overflow; 52565a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52575a5ea0d4SBryan Schumaker 52585a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5259613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5260613e901eSBryan Schumaker if (status) 5261613e901eSBryan Schumaker goto out; 52625a5ea0d4SBryan Schumaker } 5263c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52645a5ea0d4SBryan Schumaker } 52655a5ea0d4SBryan Schumaker 526631e4dda4SBryan Schumaker status = 0; 5267613e901eSBryan Schumaker out: 5268613e901eSBryan Schumaker return status; 52695a5ea0d4SBryan Schumaker out_overflow: 52705a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52715a5ea0d4SBryan Schumaker return -EIO; 52725a5ea0d4SBryan Schumaker } 52735a5ea0d4SBryan Schumaker 527431e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 527531e4dda4SBryan Schumaker { 527631e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 527731e4dda4SBryan Schumaker if (status) 527831e4dda4SBryan Schumaker return status; 527931e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 528031e4dda4SBryan Schumaker } 528131e4dda4SBryan Schumaker 528299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 528331e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 528431e4dda4SBryan Schumaker { 528531e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 528631e4dda4SBryan Schumaker if (status) 528731e4dda4SBryan Schumaker return status; 528831e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 528931e4dda4SBryan Schumaker } 529031e4dda4SBryan Schumaker 529199fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 529299fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 529399fe60d0SBenny Halevy { 529499fe60d0SBenny Halevy __be32 *p; 529599fe60d0SBenny Halevy uint32_t dummy; 52962460ba57SBenny Halevy char *dummy_str; 529799fe60d0SBenny Halevy int status; 52987d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 529999fe60d0SBenny Halevy 530099fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 530199fe60d0SBenny Halevy if (status) 530299fe60d0SBenny Halevy return status; 530399fe60d0SBenny Halevy 5304c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5305c0eae66eSBenny Halevy if (unlikely(!p)) 5306c0eae66eSBenny Halevy goto out_overflow; 530732b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5308c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5309c0eae66eSBenny Halevy if (unlikely(!p)) 5310c0eae66eSBenny Halevy goto out_overflow; 531132b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 531232b01310STrond Myklebust res->flags = be32_to_cpup(p++); 531399fe60d0SBenny Halevy 531499fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5315cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 531699fe60d0SBenny Halevy if (dummy != SP4_NONE) 531799fe60d0SBenny Halevy return -EIO; 531899fe60d0SBenny Halevy 5319acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5320c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5321c0eae66eSBenny Halevy if (unlikely(!p)) 5322c0eae66eSBenny Halevy goto out_overflow; 5323acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 532499fe60d0SBenny Halevy 5325acdeb69dSChuck Lever /* server_owner4.so_major_id */ 53262460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53272460ba57SBenny Halevy if (unlikely(status)) 53282460ba57SBenny Halevy return status; 532978fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 533078fe0f41SWeston Andros Adamson return -EIO; 5331acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5332acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 533378fe0f41SWeston Andros Adamson 5334acdeb69dSChuck Lever /* server_scope4 */ 5335acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5336acdeb69dSChuck Lever if (unlikely(status)) 5337acdeb69dSChuck Lever return status; 5338acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5339acdeb69dSChuck Lever return -EIO; 534078fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 534178fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 534278fe0f41SWeston Andros Adamson 53437d2ed9acSWeston Andros Adamson /* Implementation Id */ 53447d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 53457d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53467d2ed9acSWeston Andros Adamson goto out_overflow; 53477d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 53487d2ed9acSWeston Andros Adamson 53497d2ed9acSWeston Andros Adamson if (impl_id_count) { 53507d2ed9acSWeston Andros Adamson /* nii_domain */ 53512460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53522460ba57SBenny Halevy if (unlikely(status)) 53532460ba57SBenny Halevy return status; 53547d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53557d2ed9acSWeston Andros Adamson return -EIO; 53567d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 535799fe60d0SBenny Halevy 53587d2ed9acSWeston Andros Adamson /* nii_name */ 53597d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53607d2ed9acSWeston Andros Adamson if (unlikely(status)) 53617d2ed9acSWeston Andros Adamson return status; 53627d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53637d2ed9acSWeston Andros Adamson return -EIO; 53647d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 53657d2ed9acSWeston Andros Adamson 53667d2ed9acSWeston Andros Adamson /* nii_date */ 53677d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 53687d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53697d2ed9acSWeston Andros Adamson goto out_overflow; 53707d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 53717d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 53727d2ed9acSWeston Andros Adamson 53737d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 53747d2ed9acSWeston Andros Adamson } 537599fe60d0SBenny Halevy return 0; 5376c0eae66eSBenny Halevy out_overflow: 5377c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5378c0eae66eSBenny Halevy return -EIO; 537999fe60d0SBenny Halevy } 5380fc931582SAndy Adamson 5381fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5382fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5383fc931582SAndy Adamson { 5384fc931582SAndy Adamson __be32 *p; 5385c9c30dd5SBenny Halevy u32 nr_attrs, val; 5386fc931582SAndy Adamson 5387c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5388c0eae66eSBenny Halevy if (unlikely(!p)) 5389c0eae66eSBenny Halevy goto out_overflow; 5390c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5391c9c30dd5SBenny Halevy if (val) 5392c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 53936f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 53946f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 53956f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 53966f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 53976f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5398cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5399fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5400a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5401a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5402fc931582SAndy Adamson return -EINVAL; 5403fc931582SAndy Adamson } 5404c0eae66eSBenny Halevy if (nr_attrs == 1) { 5405c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5406c0eae66eSBenny Halevy if (unlikely(!p)) 5407c0eae66eSBenny Halevy goto out_overflow; 5408c0eae66eSBenny Halevy } 5409fc931582SAndy Adamson return 0; 5410c0eae66eSBenny Halevy out_overflow: 5411c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5412c0eae66eSBenny Halevy return -EIO; 5413fc931582SAndy Adamson } 5414fc931582SAndy Adamson 5415e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5416e78291e4SBenny Halevy { 5417e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5418fc931582SAndy Adamson } 5419fc931582SAndy Adamson 54207c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 54217c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 54227c44f1aeSWeston Andros Adamson { 54237c44f1aeSWeston Andros Adamson __be32 *p; 54247c44f1aeSWeston Andros Adamson int status; 54257c44f1aeSWeston Andros Adamson 54267c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 54277c44f1aeSWeston Andros Adamson if (!status) 54287c44f1aeSWeston Andros Adamson status = decode_sessionid(xdr, &res->session->sess_id); 54297c44f1aeSWeston Andros Adamson if (unlikely(status)) 54307c44f1aeSWeston Andros Adamson return status; 54317c44f1aeSWeston Andros Adamson 54327c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 54337c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 54347c44f1aeSWeston Andros Adamson if (unlikely(!p)) 54357c44f1aeSWeston Andros Adamson goto out_overflow; 54367c44f1aeSWeston Andros Adamson 54377c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 54387c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 54397c44f1aeSWeston Andros Adamson return -EIO; 54407c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 54417c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 54427c44f1aeSWeston Andros Adamson else 54437c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 54447c44f1aeSWeston Andros Adamson 54457c44f1aeSWeston Andros Adamson return 0; 54467c44f1aeSWeston Andros Adamson out_overflow: 54477c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 54487c44f1aeSWeston Andros Adamson return -EIO; 54497c44f1aeSWeston Andros Adamson } 54507c44f1aeSWeston Andros Adamson 5451fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5452fc931582SAndy Adamson struct nfs41_create_session_res *res) 5453fc931582SAndy Adamson { 5454fc931582SAndy Adamson __be32 *p; 5455fc931582SAndy Adamson int status; 5456fc931582SAndy Adamson struct nfs_client *clp = res->client; 5457fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5458fc931582SAndy Adamson 5459fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5460e78291e4SBenny Halevy if (!status) 5461e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5462e78291e4SBenny Halevy if (unlikely(status)) 5463fc931582SAndy Adamson return status; 5464fc931582SAndy Adamson 5465fc931582SAndy Adamson /* seqid, flags */ 5466c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5467c0eae66eSBenny Halevy if (unlikely(!p)) 5468c0eae66eSBenny Halevy goto out_overflow; 54696f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5470cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5471fc931582SAndy Adamson 5472fc931582SAndy Adamson /* Channel attributes */ 5473fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5474fc931582SAndy Adamson if (!status) 5475fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5476fc931582SAndy Adamson return status; 5477c0eae66eSBenny Halevy out_overflow: 5478c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5479c0eae66eSBenny Halevy return -EIO; 5480fc931582SAndy Adamson } 54810f3e66c6SAndy Adamson 54820f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 54830f3e66c6SAndy Adamson { 54840f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 54850f3e66c6SAndy Adamson } 548618019753SRicardo Labiaga 548766245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 548866245539STrond Myklebust { 548966245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 549066245539STrond Myklebust } 549166245539STrond Myklebust 549218019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 549318019753SRicardo Labiaga { 549418019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 549518019753SRicardo Labiaga } 549699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 549799fe60d0SBenny Halevy 54989b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 54999b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 55009b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 55019b7b9fccSAndy Adamson { 55029b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5503e3725ec0STrond Myklebust struct nfs4_session *session; 5504fc01cea9SAndy Adamson struct nfs4_sessionid id; 5505fc01cea9SAndy Adamson u32 dummy; 5506fc01cea9SAndy Adamson int status; 5507fc01cea9SAndy Adamson __be32 *p; 5508fc01cea9SAndy Adamson 5509e3725ec0STrond Myklebust if (res->sr_slot == NULL) 55109b7b9fccSAndy Adamson return 0; 55119b7b9fccSAndy Adamson 5512fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5513e78291e4SBenny Halevy if (!status) 5514e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5515e78291e4SBenny Halevy if (unlikely(status)) 5516fc01cea9SAndy Adamson goto out_err; 55179b7b9fccSAndy Adamson 5518fc01cea9SAndy Adamson /* 5519fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5520fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5521fc01cea9SAndy Adamson */ 5522fdcb4577STrond Myklebust status = -EREMOTEIO; 5523e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5524fc01cea9SAndy Adamson 5525e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5526fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5527fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5528fc01cea9SAndy Adamson goto out_err; 5529fc01cea9SAndy Adamson } 5530e78291e4SBenny Halevy 5531c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5532c0eae66eSBenny Halevy if (unlikely(!p)) 5533c0eae66eSBenny Halevy goto out_overflow; 5534e78291e4SBenny Halevy 5535fc01cea9SAndy Adamson /* seqid */ 55366f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5537dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5538fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5539fc01cea9SAndy Adamson goto out_err; 5540fc01cea9SAndy Adamson } 5541fc01cea9SAndy Adamson /* slot id */ 55426f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5543df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5544fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5545fc01cea9SAndy Adamson goto out_err; 5546fc01cea9SAndy Adamson } 5547da0507b7STrond Myklebust /* highest slot id */ 5548da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5549464ee9f9STrond Myklebust /* target highest slot id */ 5550464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 55510629e370SAlexandros Batsakis /* result flags */ 55520629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5553fc01cea9SAndy Adamson status = 0; 5554fc01cea9SAndy Adamson out_err: 5555fc01cea9SAndy Adamson res->sr_status = status; 5556fc01cea9SAndy Adamson return status; 5557c0eae66eSBenny Halevy out_overflow: 5558c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5559c0eae66eSBenny Halevy status = -EIO; 5560c0eae66eSBenny Halevy goto out_err; 5561fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 55629b7b9fccSAndy Adamson return 0; 5563fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 55649b7b9fccSAndy Adamson } 55659b7b9fccSAndy Adamson 5566b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 55677f11d8d3SAndy Adamson /* 55687f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 55697f11d8d3SAndy Adamson */ 55707f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 55717f11d8d3SAndy Adamson struct pnfs_devicelist *res) 55727f11d8d3SAndy Adamson { 55737f11d8d3SAndy Adamson __be32 *p; 55747f11d8d3SAndy Adamson int status, i; 557598d94524STrond Myklebust nfs4_verifier verftemp; 55767f11d8d3SAndy Adamson 55777f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 55787f11d8d3SAndy Adamson if (status) 55797f11d8d3SAndy Adamson return status; 55807f11d8d3SAndy Adamson 55817f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 55827f11d8d3SAndy Adamson if (unlikely(!p)) 55837f11d8d3SAndy Adamson goto out_overflow; 55847f11d8d3SAndy Adamson 55857f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 55867f11d8d3SAndy Adamson p += 2; 55877f11d8d3SAndy Adamson 55887f11d8d3SAndy Adamson /* Read verifier */ 558998d94524STrond Myklebust p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE); 55907f11d8d3SAndy Adamson 55917f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 55927f11d8d3SAndy Adamson 55937f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 55947f11d8d3SAndy Adamson 55957f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5596a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 55977f11d8d3SAndy Adamson __func__, res->num_devs); 55987f11d8d3SAndy Adamson return -EIO; 55997f11d8d3SAndy Adamson } 56007f11d8d3SAndy Adamson 56017f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 56027f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 56037f11d8d3SAndy Adamson if (unlikely(!p)) 56047f11d8d3SAndy Adamson goto out_overflow; 56057f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 56067f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 56077f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 56087f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 56097f11d8d3SAndy Adamson return 0; 56107f11d8d3SAndy Adamson out_overflow: 56117f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 56127f11d8d3SAndy Adamson return -EIO; 56137f11d8d3SAndy Adamson } 5614b1f69b75SAndy Adamson 5615b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5616b1f69b75SAndy Adamson struct pnfs_device *pdev) 5617b1f69b75SAndy Adamson { 5618b1f69b75SAndy Adamson __be32 *p; 5619b1f69b75SAndy Adamson uint32_t len, type; 5620b1f69b75SAndy Adamson int status; 5621b1f69b75SAndy Adamson 5622b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5623b1f69b75SAndy Adamson if (status) { 5624b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5625b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5626b1f69b75SAndy Adamson if (unlikely(!p)) 5627b1f69b75SAndy Adamson goto out_overflow; 5628b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5629b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5630b1f69b75SAndy Adamson __func__, pdev->mincount); 5631b1f69b75SAndy Adamson } 5632b1f69b75SAndy Adamson return status; 5633b1f69b75SAndy Adamson } 5634b1f69b75SAndy Adamson 5635b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5636b1f69b75SAndy Adamson if (unlikely(!p)) 5637b1f69b75SAndy Adamson goto out_overflow; 5638b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5639b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5640b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5641b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5642b1f69b75SAndy Adamson return -EINVAL; 5643b1f69b75SAndy Adamson } 5644b1f69b75SAndy Adamson /* 5645b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5646b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5647b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5648b1f69b75SAndy Adamson */ 5649b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 565013fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 565113fe4ba1STrond Myklebust goto out_overflow; 5652b1f69b75SAndy Adamson 5653b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5654b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5655b1f69b75SAndy Adamson if (unlikely(!p)) 5656b1f69b75SAndy Adamson goto out_overflow; 5657b1f69b75SAndy Adamson len = be32_to_cpup(p); 5658b1f69b75SAndy Adamson if (len) { 5659ead00597SChuck Lever uint32_t i; 5660b1f69b75SAndy Adamson 5661b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5662b1f69b75SAndy Adamson if (unlikely(!p)) 5663b1f69b75SAndy Adamson goto out_overflow; 5664b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5665b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5666b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5667b1f69b75SAndy Adamson __func__); 5668b1f69b75SAndy Adamson return -EIO; 5669b1f69b75SAndy Adamson } 5670b1f69b75SAndy Adamson } 5671b1f69b75SAndy Adamson } 5672b1f69b75SAndy Adamson return 0; 5673b1f69b75SAndy Adamson out_overflow: 5674b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5675b1f69b75SAndy Adamson return -EIO; 5676b1f69b75SAndy Adamson } 5677b1f69b75SAndy Adamson 5678b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5679b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5680b1f69b75SAndy Adamson { 5681b1f69b75SAndy Adamson __be32 *p; 5682b1f69b75SAndy Adamson int status; 5683b1f69b75SAndy Adamson u32 layout_count; 568464bd577eSTrond Myklebust u32 recvd; 5685b1f69b75SAndy Adamson 5686b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5687b1f69b75SAndy Adamson if (status) 5688b1f69b75SAndy Adamson return status; 5689ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5690b1f69b75SAndy Adamson if (unlikely(!p)) 5691b1f69b75SAndy Adamson goto out_overflow; 5692ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5693ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5694ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5695ea9d23f5STrond Myklebust if (unlikely(!p)) 5696ea9d23f5STrond Myklebust goto out_overflow; 5697b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5698b1f69b75SAndy Adamson if (!layout_count) { 5699b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5700b1f69b75SAndy Adamson __func__); 5701b1f69b75SAndy Adamson return -EINVAL; 5702b1f69b75SAndy Adamson } 5703b1f69b75SAndy Adamson 570435124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5705b1f69b75SAndy Adamson if (unlikely(!p)) 5706b1f69b75SAndy Adamson goto out_overflow; 5707b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5708b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5709b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5710b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 571135124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5712b1f69b75SAndy Adamson 5713b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5714b1f69b75SAndy Adamson __func__, 5715b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5716b1f69b75SAndy Adamson (unsigned long)res->range.length, 5717b1f69b75SAndy Adamson res->range.iomode, 5718b1f69b75SAndy Adamson res->type, 571935124a09SWeston Andros Adamson res->layoutp->len); 5720b1f69b75SAndy Adamson 572164bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 572235124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 572335124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 572435124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 572535124a09SWeston Andros Adamson res->layoutp->len, recvd); 572635124a09SWeston Andros Adamson return -EINVAL; 572735124a09SWeston Andros Adamson } 572835124a09SWeston Andros Adamson 5729b1f69b75SAndy Adamson if (layout_count > 1) { 5730b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5731b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5732b1f69b75SAndy Adamson * the client may see a response that is less than the 5733b1f69b75SAndy Adamson * minimum it requested. 5734b1f69b75SAndy Adamson */ 5735b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5736b1f69b75SAndy Adamson __func__, layout_count); 5737b1f69b75SAndy Adamson } 5738b1f69b75SAndy Adamson 5739b1f69b75SAndy Adamson return 0; 5740b1f69b75SAndy Adamson out_overflow: 5741b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5742b1f69b75SAndy Adamson return -EIO; 5743b1f69b75SAndy Adamson } 5744863a3c6cSAndy Adamson 5745cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5746cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5747cbe82603SBenny Halevy { 5748cbe82603SBenny Halevy __be32 *p; 5749cbe82603SBenny Halevy int status; 5750cbe82603SBenny Halevy 5751cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5752cbe82603SBenny Halevy if (status) 5753cbe82603SBenny Halevy return status; 5754cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5755cbe82603SBenny Halevy if (unlikely(!p)) 5756cbe82603SBenny Halevy goto out_overflow; 5757cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5758cbe82603SBenny Halevy if (res->lrs_present) 5759cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5760cbe82603SBenny Halevy return status; 5761cbe82603SBenny Halevy out_overflow: 5762cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5763cbe82603SBenny Halevy return -EIO; 5764cbe82603SBenny Halevy } 5765cbe82603SBenny Halevy 5766863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5767863a3c6cSAndy Adamson struct rpc_rqst *req, 5768863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5769863a3c6cSAndy Adamson { 5770863a3c6cSAndy Adamson __be32 *p; 5771863a3c6cSAndy Adamson __u32 sizechanged; 5772863a3c6cSAndy Adamson int status; 5773863a3c6cSAndy Adamson 5774863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5775db29c089SAndy Adamson res->status = status; 5776863a3c6cSAndy Adamson if (status) 5777863a3c6cSAndy Adamson return status; 5778863a3c6cSAndy Adamson 5779863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5780863a3c6cSAndy Adamson if (unlikely(!p)) 5781863a3c6cSAndy Adamson goto out_overflow; 5782863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5783863a3c6cSAndy Adamson 5784863a3c6cSAndy Adamson if (sizechanged) { 5785863a3c6cSAndy Adamson /* throw away new size */ 5786863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5787863a3c6cSAndy Adamson if (unlikely(!p)) 5788863a3c6cSAndy Adamson goto out_overflow; 5789863a3c6cSAndy Adamson } 5790863a3c6cSAndy Adamson return 0; 5791863a3c6cSAndy Adamson out_overflow: 5792863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5793863a3c6cSAndy Adamson return -EIO; 5794863a3c6cSAndy Adamson } 57957d974794SBryan Schumaker 57967d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 57977d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 57987d974794SBryan Schumaker { 57997d974794SBryan Schumaker __be32 *p; 58007d974794SBryan Schumaker int status; 58017d974794SBryan Schumaker int num_res; 58027d974794SBryan Schumaker 58037d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 58047d974794SBryan Schumaker if (status) 58057d974794SBryan Schumaker return status; 58067d974794SBryan Schumaker 58077d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58087d974794SBryan Schumaker if (unlikely(!p)) 58097d974794SBryan Schumaker goto out_overflow; 58107d974794SBryan Schumaker num_res = be32_to_cpup(p++); 58117d974794SBryan Schumaker if (num_res != 1) 58127d974794SBryan Schumaker goto out; 58137d974794SBryan Schumaker 58147d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58157d974794SBryan Schumaker if (unlikely(!p)) 58167d974794SBryan Schumaker goto out_overflow; 58177d974794SBryan Schumaker res->status = be32_to_cpup(p++); 58181cab0652SBryan Schumaker 58191cab0652SBryan Schumaker return status; 58207d974794SBryan Schumaker out_overflow: 58217d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 58227d974794SBryan Schumaker out: 58237d974794SBryan Schumaker return -EIO; 58247d974794SBryan Schumaker } 58259aeda35fSBryan Schumaker 58269aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 58279aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 58289aeda35fSBryan Schumaker { 58299aeda35fSBryan Schumaker __be32 *p; 58309aeda35fSBryan Schumaker int status; 58319aeda35fSBryan Schumaker 58329aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 58339aeda35fSBryan Schumaker if (status) 58349aeda35fSBryan Schumaker return status; 58359aeda35fSBryan Schumaker 58369aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 58379aeda35fSBryan Schumaker if (unlikely(!p)) 58389aeda35fSBryan Schumaker goto out_overflow; 58399aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 58409aeda35fSBryan Schumaker return res->status; 58419aeda35fSBryan Schumaker out_overflow: 58429aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 58439aeda35fSBryan Schumaker return -EIO; 58449aeda35fSBryan Schumaker } 5845b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5846b1f69b75SAndy Adamson 58471da177e4SLinus Torvalds /* 584849c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 584949c2559eSBenny Halevy */ 585049c2559eSBenny Halevy 585149c2559eSBenny Halevy /* 58521da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 58531da177e4SLinus Torvalds */ 5854bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5855bf269551SChuck Lever struct xdr_stream *xdr, 5856bf269551SChuck Lever struct nfs_closeres *res) 58571da177e4SLinus Torvalds { 58581da177e4SLinus Torvalds struct compound_hdr hdr; 58591da177e4SLinus Torvalds int status; 58601da177e4SLinus Torvalds 5861bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58621da177e4SLinus Torvalds if (status) 58631da177e4SLinus Torvalds goto out; 5864bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58659b7b9fccSAndy Adamson if (status) 58669b7b9fccSAndy Adamson goto out; 5867bf269551SChuck Lever status = decode_putfh(xdr); 58681da177e4SLinus Torvalds if (status) 58691da177e4SLinus Torvalds goto out; 5870bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5871516a6af6STrond Myklebust if (status != 0) 5872516a6af6STrond Myklebust goto out; 58736926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58741da177e4SLinus Torvalds out: 58751da177e4SLinus Torvalds return status; 58761da177e4SLinus Torvalds } 58771da177e4SLinus Torvalds 58781da177e4SLinus Torvalds /* 58791da177e4SLinus Torvalds * Decode ACCESS response 58801da177e4SLinus Torvalds */ 5881bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5882bf269551SChuck Lever struct nfs4_accessres *res) 58831da177e4SLinus Torvalds { 58841da177e4SLinus Torvalds struct compound_hdr hdr; 58851da177e4SLinus Torvalds int status; 58861da177e4SLinus Torvalds 5887bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58889b7b9fccSAndy Adamson if (status) 58899b7b9fccSAndy Adamson goto out; 5890bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58919b7b9fccSAndy Adamson if (status) 58921da177e4SLinus Torvalds goto out; 5893bf269551SChuck Lever status = decode_putfh(xdr); 589476b32999STrond Myklebust if (status != 0) 589576b32999STrond Myklebust goto out; 58966168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 589776b32999STrond Myklebust if (status != 0) 589876b32999STrond Myklebust goto out; 58996926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 59001da177e4SLinus Torvalds out: 59011da177e4SLinus Torvalds return status; 59021da177e4SLinus Torvalds } 59031da177e4SLinus Torvalds 59041da177e4SLinus Torvalds /* 59051da177e4SLinus Torvalds * Decode LOOKUP response 59061da177e4SLinus Torvalds */ 5907bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5908bf269551SChuck Lever struct nfs4_lookup_res *res) 59091da177e4SLinus Torvalds { 59101da177e4SLinus Torvalds struct compound_hdr hdr; 59111da177e4SLinus Torvalds int status; 59121da177e4SLinus Torvalds 5913bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59149b7b9fccSAndy Adamson if (status) 59159b7b9fccSAndy Adamson goto out; 5916bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59179b7b9fccSAndy Adamson if (status) 59181da177e4SLinus Torvalds goto out; 5919bf269551SChuck Lever status = decode_putfh(xdr); 5920bf269551SChuck Lever if (status) 59211da177e4SLinus Torvalds goto out; 5922bf269551SChuck Lever status = decode_lookup(xdr); 5923bf269551SChuck Lever if (status) 59241da177e4SLinus Torvalds goto out; 5925bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5926bf269551SChuck Lever if (status) 59271da177e4SLinus Torvalds goto out; 59286926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59291da177e4SLinus Torvalds out: 59301da177e4SLinus Torvalds return status; 59311da177e4SLinus Torvalds } 59321da177e4SLinus Torvalds 59331da177e4SLinus Torvalds /* 59341da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 59351da177e4SLinus Torvalds */ 5936bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5937bf269551SChuck Lever struct xdr_stream *xdr, 5938bf269551SChuck Lever struct nfs4_lookup_res *res) 59391da177e4SLinus Torvalds { 59401da177e4SLinus Torvalds struct compound_hdr hdr; 59411da177e4SLinus Torvalds int status; 59421da177e4SLinus Torvalds 5943bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59449b7b9fccSAndy Adamson if (status) 59459b7b9fccSAndy Adamson goto out; 5946bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59479b7b9fccSAndy Adamson if (status) 59481da177e4SLinus Torvalds goto out; 5949bf269551SChuck Lever status = decode_putrootfh(xdr); 5950bf269551SChuck Lever if (status) 59511da177e4SLinus Torvalds goto out; 5952bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5953bf269551SChuck Lever if (status == 0) 59546926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59551da177e4SLinus Torvalds out: 59561da177e4SLinus Torvalds return status; 59571da177e4SLinus Torvalds } 59581da177e4SLinus Torvalds 59591da177e4SLinus Torvalds /* 59601da177e4SLinus Torvalds * Decode REMOVE response 59611da177e4SLinus Torvalds */ 5962bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5963bf269551SChuck Lever struct nfs_removeres *res) 59641da177e4SLinus Torvalds { 59651da177e4SLinus Torvalds struct compound_hdr hdr; 59661da177e4SLinus Torvalds int status; 59671da177e4SLinus Torvalds 5968bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59699b7b9fccSAndy Adamson if (status) 59709b7b9fccSAndy Adamson goto out; 5971bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59729b7b9fccSAndy Adamson if (status) 59731da177e4SLinus Torvalds goto out; 5974bf269551SChuck Lever status = decode_putfh(xdr); 5975bf269551SChuck Lever if (status) 597616e42959STrond Myklebust goto out; 5977bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 59781da177e4SLinus Torvalds out: 59791da177e4SLinus Torvalds return status; 59801da177e4SLinus Torvalds } 59811da177e4SLinus Torvalds 59821da177e4SLinus Torvalds /* 59831da177e4SLinus Torvalds * Decode RENAME response 59841da177e4SLinus Torvalds */ 5985bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5986bf269551SChuck Lever struct nfs_renameres *res) 59871da177e4SLinus Torvalds { 59881da177e4SLinus Torvalds struct compound_hdr hdr; 59891da177e4SLinus Torvalds int status; 59901da177e4SLinus Torvalds 5991bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59929b7b9fccSAndy Adamson if (status) 59939b7b9fccSAndy Adamson goto out; 5994bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59959b7b9fccSAndy Adamson if (status) 59961da177e4SLinus Torvalds goto out; 5997bf269551SChuck Lever status = decode_putfh(xdr); 5998bf269551SChuck Lever if (status) 59991da177e4SLinus Torvalds goto out; 6000bf269551SChuck Lever status = decode_savefh(xdr); 6001bf269551SChuck Lever if (status) 60021da177e4SLinus Torvalds goto out; 6003bf269551SChuck Lever status = decode_putfh(xdr); 6004bf269551SChuck Lever if (status) 60051da177e4SLinus Torvalds goto out; 6006bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 60071da177e4SLinus Torvalds out: 60081da177e4SLinus Torvalds return status; 60091da177e4SLinus Torvalds } 60101da177e4SLinus Torvalds 60111da177e4SLinus Torvalds /* 60121da177e4SLinus Torvalds * Decode LINK response 60131da177e4SLinus Torvalds */ 6014bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6015bf269551SChuck Lever struct nfs4_link_res *res) 60161da177e4SLinus Torvalds { 60171da177e4SLinus Torvalds struct compound_hdr hdr; 60181da177e4SLinus Torvalds int status; 60191da177e4SLinus Torvalds 6020bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60219b7b9fccSAndy Adamson if (status) 60229b7b9fccSAndy Adamson goto out; 6023bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60249b7b9fccSAndy Adamson if (status) 60251da177e4SLinus Torvalds goto out; 6026bf269551SChuck Lever status = decode_putfh(xdr); 6027bf269551SChuck Lever if (status) 60281da177e4SLinus Torvalds goto out; 6029bf269551SChuck Lever status = decode_savefh(xdr); 6030bf269551SChuck Lever if (status) 60311da177e4SLinus Torvalds goto out; 6032bf269551SChuck Lever status = decode_putfh(xdr); 6033bf269551SChuck Lever if (status) 60341da177e4SLinus Torvalds goto out; 6035bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6036bf269551SChuck Lever if (status) 603791ba2eeeSTrond Myklebust goto out; 603891ba2eeeSTrond Myklebust /* 603991ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 604091ba2eeeSTrond Myklebust * filehandle. 604191ba2eeeSTrond Myklebust */ 6042bf269551SChuck Lever status = decode_restorefh(xdr); 6043bf269551SChuck Lever if (status) 604491ba2eeeSTrond Myklebust goto out; 60456926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60461da177e4SLinus Torvalds out: 60471da177e4SLinus Torvalds return status; 60481da177e4SLinus Torvalds } 60491da177e4SLinus Torvalds 60501da177e4SLinus Torvalds /* 60511da177e4SLinus Torvalds * Decode CREATE response 60521da177e4SLinus Torvalds */ 6053bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6054bf269551SChuck Lever struct nfs4_create_res *res) 60551da177e4SLinus Torvalds { 60561da177e4SLinus Torvalds struct compound_hdr hdr; 60571da177e4SLinus Torvalds int status; 60581da177e4SLinus Torvalds 6059bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60609b7b9fccSAndy Adamson if (status) 60619b7b9fccSAndy Adamson goto out; 6062bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60639b7b9fccSAndy Adamson if (status) 60641da177e4SLinus Torvalds goto out; 6065bf269551SChuck Lever status = decode_putfh(xdr); 6066bf269551SChuck Lever if (status) 60671da177e4SLinus Torvalds goto out; 6068bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6069bf269551SChuck Lever if (status) 60701da177e4SLinus Torvalds goto out; 6071bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6072bf269551SChuck Lever if (status) 60731da177e4SLinus Torvalds goto out; 60747c317fcfSTrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60751da177e4SLinus Torvalds out: 60761da177e4SLinus Torvalds return status; 60771da177e4SLinus Torvalds } 60781da177e4SLinus Torvalds 60791da177e4SLinus Torvalds /* 60801da177e4SLinus Torvalds * Decode SYMLINK response 60811da177e4SLinus Torvalds */ 6082bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6083bf269551SChuck Lever struct nfs4_create_res *res) 60841da177e4SLinus Torvalds { 6085bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60861da177e4SLinus Torvalds } 60871da177e4SLinus Torvalds 60881da177e4SLinus Torvalds /* 60891da177e4SLinus Torvalds * Decode GETATTR response 60901da177e4SLinus Torvalds */ 6091bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6092bf269551SChuck Lever struct nfs4_getattr_res *res) 60931da177e4SLinus Torvalds { 60941da177e4SLinus Torvalds struct compound_hdr hdr; 60951da177e4SLinus Torvalds int status; 60961da177e4SLinus Torvalds 6097bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60981da177e4SLinus Torvalds if (status) 60991da177e4SLinus Torvalds goto out; 6100bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61019b7b9fccSAndy Adamson if (status) 61029b7b9fccSAndy Adamson goto out; 6103bf269551SChuck Lever status = decode_putfh(xdr); 61041da177e4SLinus Torvalds if (status) 61051da177e4SLinus Torvalds goto out; 61066926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 61071da177e4SLinus Torvalds out: 61081da177e4SLinus Torvalds return status; 61091da177e4SLinus Torvalds } 61101da177e4SLinus Torvalds 611123ec6965SJ. Bruce Fields /* 611223ec6965SJ. Bruce Fields * Encode an SETACL request 611323ec6965SJ. Bruce Fields */ 61149f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 61159f06c719SChuck Lever struct nfs_setaclargs *args) 611623ec6965SJ. Bruce Fields { 611723ec6965SJ. Bruce Fields struct compound_hdr hdr = { 611866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 611923ec6965SJ. Bruce Fields }; 612023ec6965SJ. Bruce Fields 61219f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 61229f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 61239f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 61249f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6125d017931cSAndy Adamson encode_nops(&hdr); 612623ec6965SJ. Bruce Fields } 612705d564feSAndy Adamson 612823ec6965SJ. Bruce Fields /* 612923ec6965SJ. Bruce Fields * Decode SETACL response 613023ec6965SJ. Bruce Fields */ 613123ec6965SJ. Bruce Fields static int 6132bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 613373c403a9SBenny Halevy struct nfs_setaclres *res) 613423ec6965SJ. Bruce Fields { 613523ec6965SJ. Bruce Fields struct compound_hdr hdr; 613623ec6965SJ. Bruce Fields int status; 613723ec6965SJ. Bruce Fields 6138bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 613923ec6965SJ. Bruce Fields if (status) 614023ec6965SJ. Bruce Fields goto out; 6141bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61429b7b9fccSAndy Adamson if (status) 61439b7b9fccSAndy Adamson goto out; 6144bf269551SChuck Lever status = decode_putfh(xdr); 614523ec6965SJ. Bruce Fields if (status) 614623ec6965SJ. Bruce Fields goto out; 6147bf269551SChuck Lever status = decode_setattr(xdr); 614823ec6965SJ. Bruce Fields out: 614923ec6965SJ. Bruce Fields return status; 615023ec6965SJ. Bruce Fields } 61511da177e4SLinus Torvalds 61521da177e4SLinus Torvalds /* 6153029d105eSJ. Bruce Fields * Decode GETACL response 6154029d105eSJ. Bruce Fields */ 6155029d105eSJ. Bruce Fields static int 6156bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6157663c79b3SBenny Halevy struct nfs_getaclres *res) 6158029d105eSJ. Bruce Fields { 6159029d105eSJ. Bruce Fields struct compound_hdr hdr; 6160029d105eSJ. Bruce Fields int status; 6161029d105eSJ. Bruce Fields 6162331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6163331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6164331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6165331818f1STrond Myklebust } 6166bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6167029d105eSJ. Bruce Fields if (status) 6168029d105eSJ. Bruce Fields goto out; 6169bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61709b7b9fccSAndy Adamson if (status) 61719b7b9fccSAndy Adamson goto out; 6172bf269551SChuck Lever status = decode_putfh(xdr); 6173029d105eSJ. Bruce Fields if (status) 6174029d105eSJ. Bruce Fields goto out; 6175bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6176029d105eSJ. Bruce Fields 6177029d105eSJ. Bruce Fields out: 6178029d105eSJ. Bruce Fields return status; 6179029d105eSJ. Bruce Fields } 6180029d105eSJ. Bruce Fields 6181029d105eSJ. Bruce Fields /* 61821da177e4SLinus Torvalds * Decode CLOSE response 61831da177e4SLinus Torvalds */ 6184bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6185bf269551SChuck Lever struct nfs_closeres *res) 61861da177e4SLinus Torvalds { 61871da177e4SLinus Torvalds struct compound_hdr hdr; 61881da177e4SLinus Torvalds int status; 61891da177e4SLinus Torvalds 6190bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61911da177e4SLinus Torvalds if (status) 61921da177e4SLinus Torvalds goto out; 6193bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61949b7b9fccSAndy Adamson if (status) 61959b7b9fccSAndy Adamson goto out; 6196bf269551SChuck Lever status = decode_putfh(xdr); 61971da177e4SLinus Torvalds if (status) 61981da177e4SLinus Torvalds goto out; 6199bf269551SChuck Lever status = decode_close(xdr, res); 6200516a6af6STrond Myklebust if (status != 0) 6201516a6af6STrond Myklebust goto out; 6202516a6af6STrond Myklebust /* 6203516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6204516a6af6STrond Myklebust * in which case the getattr call will fail with 6205516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6206516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6207516a6af6STrond Myklebust */ 62086926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62091da177e4SLinus Torvalds out: 62101da177e4SLinus Torvalds return status; 62111da177e4SLinus Torvalds } 62121da177e4SLinus Torvalds 62131da177e4SLinus Torvalds /* 62141da177e4SLinus Torvalds * Decode OPEN response 62151da177e4SLinus Torvalds */ 6216bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6217bf269551SChuck Lever struct nfs_openres *res) 62181da177e4SLinus Torvalds { 62191da177e4SLinus Torvalds struct compound_hdr hdr; 62201da177e4SLinus Torvalds int status; 62211da177e4SLinus Torvalds 6222bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62231da177e4SLinus Torvalds if (status) 62241da177e4SLinus Torvalds goto out; 6225bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62269b7b9fccSAndy Adamson if (status) 62279b7b9fccSAndy Adamson goto out; 6228bf269551SChuck Lever status = decode_putfh(xdr); 62291da177e4SLinus Torvalds if (status) 62301da177e4SLinus Torvalds goto out; 6231bf269551SChuck Lever status = decode_open(xdr, res); 62321da177e4SLinus Torvalds if (status) 62331da177e4SLinus Torvalds goto out; 623401913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 623501913b49SWeston Andros Adamson if (status) 62361da177e4SLinus Torvalds goto out; 6237ae2bb032SWeston Andros Adamson if (res->access_request) 62386168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 623990ff0c54STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62401da177e4SLinus Torvalds out: 62411da177e4SLinus Torvalds return status; 62421da177e4SLinus Torvalds } 62431da177e4SLinus Torvalds 62441da177e4SLinus Torvalds /* 62451da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 62461da177e4SLinus Torvalds */ 6247bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6248bf269551SChuck Lever struct xdr_stream *xdr, 6249bf269551SChuck Lever struct nfs_open_confirmres *res) 62501da177e4SLinus Torvalds { 62511da177e4SLinus Torvalds struct compound_hdr hdr; 62521da177e4SLinus Torvalds int status; 62531da177e4SLinus Torvalds 6254bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62551da177e4SLinus Torvalds if (status) 62561da177e4SLinus Torvalds goto out; 6257bf269551SChuck Lever status = decode_putfh(xdr); 62581da177e4SLinus Torvalds if (status) 62591da177e4SLinus Torvalds goto out; 6260bf269551SChuck Lever status = decode_open_confirm(xdr, res); 62611da177e4SLinus Torvalds out: 62621da177e4SLinus Torvalds return status; 62631da177e4SLinus Torvalds } 62641da177e4SLinus Torvalds 62651da177e4SLinus Torvalds /* 62661da177e4SLinus Torvalds * Decode OPEN response 62671da177e4SLinus Torvalds */ 6268bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6269bf269551SChuck Lever struct xdr_stream *xdr, 6270bf269551SChuck Lever struct nfs_openres *res) 62711da177e4SLinus Torvalds { 62721da177e4SLinus Torvalds struct compound_hdr hdr; 62731da177e4SLinus Torvalds int status; 62741da177e4SLinus Torvalds 6275bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62761da177e4SLinus Torvalds if (status) 62771da177e4SLinus Torvalds goto out; 6278bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62799b7b9fccSAndy Adamson if (status) 62809b7b9fccSAndy Adamson goto out; 6281bf269551SChuck Lever status = decode_putfh(xdr); 62821da177e4SLinus Torvalds if (status) 62831da177e4SLinus Torvalds goto out; 6284bf269551SChuck Lever status = decode_open(xdr, res); 6285864472e9STrond Myklebust if (status) 6286864472e9STrond Myklebust goto out; 6287ae2bb032SWeston Andros Adamson if (res->access_request) 62886168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 62896926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62901da177e4SLinus Torvalds out: 62911da177e4SLinus Torvalds return status; 62921da177e4SLinus Torvalds } 62931da177e4SLinus Torvalds 62941da177e4SLinus Torvalds /* 62951da177e4SLinus Torvalds * Decode SETATTR response 62961da177e4SLinus Torvalds */ 6297bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6298bf269551SChuck Lever struct xdr_stream *xdr, 6299bf269551SChuck Lever struct nfs_setattrres *res) 63001da177e4SLinus Torvalds { 63011da177e4SLinus Torvalds struct compound_hdr hdr; 63021da177e4SLinus Torvalds int status; 63031da177e4SLinus Torvalds 6304bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63051da177e4SLinus Torvalds if (status) 63061da177e4SLinus Torvalds goto out; 6307bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63089b7b9fccSAndy Adamson if (status) 63099b7b9fccSAndy Adamson goto out; 6310bf269551SChuck Lever status = decode_putfh(xdr); 63111da177e4SLinus Torvalds if (status) 63121da177e4SLinus Torvalds goto out; 6313bf269551SChuck Lever status = decode_setattr(xdr); 63141da177e4SLinus Torvalds if (status) 63151da177e4SLinus Torvalds goto out; 63166926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63171da177e4SLinus Torvalds out: 63181da177e4SLinus Torvalds return status; 63191da177e4SLinus Torvalds } 63201da177e4SLinus Torvalds 63211da177e4SLinus Torvalds /* 63221da177e4SLinus Torvalds * Decode LOCK response 63231da177e4SLinus Torvalds */ 6324bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6325bf269551SChuck Lever struct nfs_lock_res *res) 63261da177e4SLinus Torvalds { 63271da177e4SLinus Torvalds struct compound_hdr hdr; 63281da177e4SLinus Torvalds int status; 63291da177e4SLinus Torvalds 6330bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63311da177e4SLinus Torvalds if (status) 63321da177e4SLinus Torvalds goto out; 6333bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63349b7b9fccSAndy Adamson if (status) 63359b7b9fccSAndy Adamson goto out; 6336bf269551SChuck Lever status = decode_putfh(xdr); 63371da177e4SLinus Torvalds if (status) 63381da177e4SLinus Torvalds goto out; 6339bf269551SChuck Lever status = decode_lock(xdr, res); 63401da177e4SLinus Torvalds out: 63411da177e4SLinus Torvalds return status; 63421da177e4SLinus Torvalds } 63431da177e4SLinus Torvalds 63441da177e4SLinus Torvalds /* 63451da177e4SLinus Torvalds * Decode LOCKT response 63461da177e4SLinus Torvalds */ 6347bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6348bf269551SChuck Lever struct nfs_lockt_res *res) 63491da177e4SLinus Torvalds { 63501da177e4SLinus Torvalds struct compound_hdr hdr; 63511da177e4SLinus Torvalds int status; 63521da177e4SLinus Torvalds 6353bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63541da177e4SLinus Torvalds if (status) 63551da177e4SLinus Torvalds goto out; 6356bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63579b7b9fccSAndy Adamson if (status) 63589b7b9fccSAndy Adamson goto out; 6359bf269551SChuck Lever status = decode_putfh(xdr); 63601da177e4SLinus Torvalds if (status) 63611da177e4SLinus Torvalds goto out; 6362bf269551SChuck Lever status = decode_lockt(xdr, res); 63631da177e4SLinus Torvalds out: 63641da177e4SLinus Torvalds return status; 63651da177e4SLinus Torvalds } 63661da177e4SLinus Torvalds 63671da177e4SLinus Torvalds /* 63681da177e4SLinus Torvalds * Decode LOCKU response 63691da177e4SLinus Torvalds */ 6370bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6371bf269551SChuck Lever struct nfs_locku_res *res) 63721da177e4SLinus Torvalds { 63731da177e4SLinus Torvalds struct compound_hdr hdr; 63741da177e4SLinus Torvalds int status; 63751da177e4SLinus Torvalds 6376bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63771da177e4SLinus Torvalds if (status) 63781da177e4SLinus Torvalds goto out; 6379bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63809b7b9fccSAndy Adamson if (status) 63819b7b9fccSAndy Adamson goto out; 6382bf269551SChuck Lever status = decode_putfh(xdr); 63831da177e4SLinus Torvalds if (status) 63841da177e4SLinus Torvalds goto out; 6385bf269551SChuck Lever status = decode_locku(xdr, res); 63861da177e4SLinus Torvalds out: 63871da177e4SLinus Torvalds return status; 63881da177e4SLinus Torvalds } 63891da177e4SLinus Torvalds 6390bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6391bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6392d3c7b7ccSTrond Myklebust { 6393d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6394d3c7b7ccSTrond Myklebust int status; 6395d3c7b7ccSTrond Myklebust 6396bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6397d3c7b7ccSTrond Myklebust if (!status) 6398bf269551SChuck Lever status = decode_release_lockowner(xdr); 6399d3c7b7ccSTrond Myklebust return status; 6400d3c7b7ccSTrond Myklebust } 6401d3c7b7ccSTrond Myklebust 64021da177e4SLinus Torvalds /* 64031da177e4SLinus Torvalds * Decode READLINK response 64041da177e4SLinus Torvalds */ 6405bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6406bf269551SChuck Lever struct xdr_stream *xdr, 6407f50c7000SBenny Halevy struct nfs4_readlink_res *res) 64081da177e4SLinus Torvalds { 64091da177e4SLinus Torvalds struct compound_hdr hdr; 64101da177e4SLinus Torvalds int status; 64111da177e4SLinus Torvalds 6412bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64131da177e4SLinus Torvalds if (status) 64141da177e4SLinus Torvalds goto out; 6415bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64169b7b9fccSAndy Adamson if (status) 64179b7b9fccSAndy Adamson goto out; 6418bf269551SChuck Lever status = decode_putfh(xdr); 64191da177e4SLinus Torvalds if (status) 64201da177e4SLinus Torvalds goto out; 6421bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 64221da177e4SLinus Torvalds out: 64231da177e4SLinus Torvalds return status; 64241da177e4SLinus Torvalds } 64251da177e4SLinus Torvalds 64261da177e4SLinus Torvalds /* 64271da177e4SLinus Torvalds * Decode READDIR response 64281da177e4SLinus Torvalds */ 6429bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6430bf269551SChuck Lever struct nfs4_readdir_res *res) 64311da177e4SLinus Torvalds { 64321da177e4SLinus Torvalds struct compound_hdr hdr; 64331da177e4SLinus Torvalds int status; 64341da177e4SLinus Torvalds 6435bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64361da177e4SLinus Torvalds if (status) 64371da177e4SLinus Torvalds goto out; 6438bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64399b7b9fccSAndy Adamson if (status) 64409b7b9fccSAndy Adamson goto out; 6441bf269551SChuck Lever status = decode_putfh(xdr); 64421da177e4SLinus Torvalds if (status) 64431da177e4SLinus Torvalds goto out; 6444bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 64451da177e4SLinus Torvalds out: 64461da177e4SLinus Torvalds return status; 64471da177e4SLinus Torvalds } 64481da177e4SLinus Torvalds 64491da177e4SLinus Torvalds /* 64501da177e4SLinus Torvalds * Decode Read response 64511da177e4SLinus Torvalds */ 6452bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6453bf269551SChuck Lever struct nfs_readres *res) 64541da177e4SLinus Torvalds { 64551da177e4SLinus Torvalds struct compound_hdr hdr; 64561da177e4SLinus Torvalds int status; 64571da177e4SLinus Torvalds 6458bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64591da177e4SLinus Torvalds if (status) 64601da177e4SLinus Torvalds goto out; 6461bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64629b7b9fccSAndy Adamson if (status) 64639b7b9fccSAndy Adamson goto out; 6464bf269551SChuck Lever status = decode_putfh(xdr); 64651da177e4SLinus Torvalds if (status) 64661da177e4SLinus Torvalds goto out; 6467bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 64681da177e4SLinus Torvalds if (!status) 64691da177e4SLinus Torvalds status = res->count; 64701da177e4SLinus Torvalds out: 64711da177e4SLinus Torvalds return status; 64721da177e4SLinus Torvalds } 64731da177e4SLinus Torvalds 64741da177e4SLinus Torvalds /* 64751da177e4SLinus Torvalds * Decode WRITE response 64761da177e4SLinus Torvalds */ 6477bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6478bf269551SChuck Lever struct nfs_writeres *res) 64791da177e4SLinus Torvalds { 64801da177e4SLinus Torvalds struct compound_hdr hdr; 64811da177e4SLinus Torvalds int status; 64821da177e4SLinus Torvalds 6483bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64841da177e4SLinus Torvalds if (status) 64851da177e4SLinus Torvalds goto out; 6486bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64879b7b9fccSAndy Adamson if (status) 64889b7b9fccSAndy Adamson goto out; 6489bf269551SChuck Lever status = decode_putfh(xdr); 64901da177e4SLinus Torvalds if (status) 64911da177e4SLinus Torvalds goto out; 6492bf269551SChuck Lever status = decode_write(xdr, res); 64934f9838c7STrond Myklebust if (status) 64944f9838c7STrond Myklebust goto out; 64957ffd1064SFred Isaman if (res->fattr) 64966926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64971da177e4SLinus Torvalds if (!status) 64981da177e4SLinus Torvalds status = res->count; 64991da177e4SLinus Torvalds out: 65001da177e4SLinus Torvalds return status; 65011da177e4SLinus Torvalds } 65021da177e4SLinus Torvalds 65031da177e4SLinus Torvalds /* 65041da177e4SLinus Torvalds * Decode COMMIT response 65051da177e4SLinus Torvalds */ 6506bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 65070b7c0153SFred Isaman struct nfs_commitres *res) 65081da177e4SLinus Torvalds { 65091da177e4SLinus Torvalds struct compound_hdr hdr; 65101da177e4SLinus Torvalds int status; 65111da177e4SLinus Torvalds 6512bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65131da177e4SLinus Torvalds if (status) 65141da177e4SLinus Torvalds goto out; 6515bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65169b7b9fccSAndy Adamson if (status) 65179b7b9fccSAndy Adamson goto out; 6518bf269551SChuck Lever status = decode_putfh(xdr); 65191da177e4SLinus Torvalds if (status) 65201da177e4SLinus Torvalds goto out; 6521bf269551SChuck Lever status = decode_commit(xdr, res); 65221da177e4SLinus Torvalds out: 65231da177e4SLinus Torvalds return status; 65241da177e4SLinus Torvalds } 65251da177e4SLinus Torvalds 65261da177e4SLinus Torvalds /* 65278b173218SRicardo Labiaga * Decode FSINFO response 65281da177e4SLinus Torvalds */ 6529bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 65303dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 65311da177e4SLinus Torvalds { 65321da177e4SLinus Torvalds struct compound_hdr hdr; 65331da177e4SLinus Torvalds int status; 65341da177e4SLinus Torvalds 6535bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65361da177e4SLinus Torvalds if (!status) 6537bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65389b7b9fccSAndy Adamson if (!status) 6539bf269551SChuck Lever status = decode_putfh(xdr); 65401da177e4SLinus Torvalds if (!status) 6541bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 65421da177e4SLinus Torvalds return status; 65431da177e4SLinus Torvalds } 65441da177e4SLinus Torvalds 65451da177e4SLinus Torvalds /* 65468b173218SRicardo Labiaga * Decode PATHCONF response 65471da177e4SLinus Torvalds */ 6548bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6549d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 65501da177e4SLinus Torvalds { 65511da177e4SLinus Torvalds struct compound_hdr hdr; 65521da177e4SLinus Torvalds int status; 65531da177e4SLinus Torvalds 6554bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65551da177e4SLinus Torvalds if (!status) 6556bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65579b7b9fccSAndy Adamson if (!status) 6558bf269551SChuck Lever status = decode_putfh(xdr); 65591da177e4SLinus Torvalds if (!status) 6560bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 65611da177e4SLinus Torvalds return status; 65621da177e4SLinus Torvalds } 65631da177e4SLinus Torvalds 65641da177e4SLinus Torvalds /* 65658b173218SRicardo Labiaga * Decode STATFS response 65661da177e4SLinus Torvalds */ 6567bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 656824ad148aSBenny Halevy struct nfs4_statfs_res *res) 65691da177e4SLinus Torvalds { 65701da177e4SLinus Torvalds struct compound_hdr hdr; 65711da177e4SLinus Torvalds int status; 65721da177e4SLinus Torvalds 6573bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65741da177e4SLinus Torvalds if (!status) 6575bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65769b7b9fccSAndy Adamson if (!status) 6577bf269551SChuck Lever status = decode_putfh(xdr); 65781da177e4SLinus Torvalds if (!status) 6579bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 65801da177e4SLinus Torvalds return status; 65811da177e4SLinus Torvalds } 65821da177e4SLinus Torvalds 65831da177e4SLinus Torvalds /* 65848b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65851da177e4SLinus Torvalds */ 6586bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6587bf269551SChuck Lever struct xdr_stream *xdr, 6588bf269551SChuck Lever struct nfs4_server_caps_res *res) 65891da177e4SLinus Torvalds { 65901da177e4SLinus Torvalds struct compound_hdr hdr; 65911da177e4SLinus Torvalds int status; 65921da177e4SLinus Torvalds 6593bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65949b7b9fccSAndy Adamson if (status) 65959b7b9fccSAndy Adamson goto out; 6596bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65979b7b9fccSAndy Adamson if (status) 65981da177e4SLinus Torvalds goto out; 6599bf269551SChuck Lever status = decode_putfh(xdr); 6600bf269551SChuck Lever if (status) 66011da177e4SLinus Torvalds goto out; 6602bf269551SChuck Lever status = decode_server_caps(xdr, res); 66031da177e4SLinus Torvalds out: 66041da177e4SLinus Torvalds return status; 66051da177e4SLinus Torvalds } 66061da177e4SLinus Torvalds 66071da177e4SLinus Torvalds /* 66081da177e4SLinus Torvalds * Decode RENEW response 66091da177e4SLinus Torvalds */ 6610bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6611bf269551SChuck Lever void *__unused) 66121da177e4SLinus Torvalds { 66131da177e4SLinus Torvalds struct compound_hdr hdr; 66141da177e4SLinus Torvalds int status; 66151da177e4SLinus Torvalds 6616bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66171da177e4SLinus Torvalds if (!status) 6618bf269551SChuck Lever status = decode_renew(xdr); 66191da177e4SLinus Torvalds return status; 66201da177e4SLinus Torvalds } 66211da177e4SLinus Torvalds 66221da177e4SLinus Torvalds /* 66238b173218SRicardo Labiaga * Decode SETCLIENTID response 66241da177e4SLinus Torvalds */ 6625bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6626bf269551SChuck Lever struct xdr_stream *xdr, 6627bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 66281da177e4SLinus Torvalds { 66291da177e4SLinus Torvalds struct compound_hdr hdr; 66301da177e4SLinus Torvalds int status; 66311da177e4SLinus Torvalds 6632bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66331da177e4SLinus Torvalds if (!status) 6634bf269551SChuck Lever status = decode_setclientid(xdr, res); 66351da177e4SLinus Torvalds return status; 66361da177e4SLinus Torvalds } 66371da177e4SLinus Torvalds 66381da177e4SLinus Torvalds /* 66398b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 66401da177e4SLinus Torvalds */ 6641bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 664283ca7f5aSChuck Lever struct xdr_stream *xdr) 66431da177e4SLinus Torvalds { 66441da177e4SLinus Torvalds struct compound_hdr hdr; 66451da177e4SLinus Torvalds int status; 66461da177e4SLinus Torvalds 6647bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66481da177e4SLinus Torvalds if (!status) 6649bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 66501da177e4SLinus Torvalds return status; 66511da177e4SLinus Torvalds } 66521da177e4SLinus Torvalds 66531da177e4SLinus Torvalds /* 66548b173218SRicardo Labiaga * Decode DELEGRETURN response 66551da177e4SLinus Torvalds */ 6656bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6657bf269551SChuck Lever struct xdr_stream *xdr, 6658bf269551SChuck Lever struct nfs4_delegreturnres *res) 66591da177e4SLinus Torvalds { 66601da177e4SLinus Torvalds struct compound_hdr hdr; 66611da177e4SLinus Torvalds int status; 66621da177e4SLinus Torvalds 6663bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66649b7b9fccSAndy Adamson if (status) 66659b7b9fccSAndy Adamson goto out; 6666bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66679b7b9fccSAndy Adamson if (status) 6668fa178f29STrond Myklebust goto out; 6669bf269551SChuck Lever status = decode_putfh(xdr); 6670fa178f29STrond Myklebust if (status != 0) 6671fa178f29STrond Myklebust goto out; 6672e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6673556ae3bbSJeff Layton if (status != 0) 6674556ae3bbSJeff Layton goto out; 6675e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6676fa178f29STrond Myklebust out: 66771da177e4SLinus Torvalds return status; 66781da177e4SLinus Torvalds } 66791da177e4SLinus Torvalds 6680683b57b4STrond Myklebust /* 66818b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6682683b57b4STrond Myklebust */ 6683bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6684bf269551SChuck Lever struct xdr_stream *xdr, 668522958463SBenny Halevy struct nfs4_fs_locations_res *res) 6686683b57b4STrond Myklebust { 6687683b57b4STrond Myklebust struct compound_hdr hdr; 6688683b57b4STrond Myklebust int status; 6689683b57b4STrond Myklebust 6690bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66919b7b9fccSAndy Adamson if (status) 66929b7b9fccSAndy Adamson goto out; 6693bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66949b7b9fccSAndy Adamson if (status) 6695683b57b4STrond Myklebust goto out; 6696bf269551SChuck Lever status = decode_putfh(xdr); 6697bf269551SChuck Lever if (status) 6698683b57b4STrond Myklebust goto out; 6699bf269551SChuck Lever status = decode_lookup(xdr); 6700bf269551SChuck Lever if (status) 6701683b57b4STrond Myklebust goto out; 6702bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 67038b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 67048b7e3f49STrond Myklebust NULL, res->fs_locations, 67056926afd1STrond Myklebust res->fs_locations->server); 6706683b57b4STrond Myklebust out: 6707683b57b4STrond Myklebust return status; 6708683b57b4STrond Myklebust } 6709683b57b4STrond Myklebust 67105a5ea0d4SBryan Schumaker /* 67115a5ea0d4SBryan Schumaker * Decode SECINFO response 67125a5ea0d4SBryan Schumaker */ 67135a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 67145a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 67155a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 67165a5ea0d4SBryan Schumaker { 67175a5ea0d4SBryan Schumaker struct compound_hdr hdr; 67185a5ea0d4SBryan Schumaker int status; 67195a5ea0d4SBryan Schumaker 67205a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 67215a5ea0d4SBryan Schumaker if (status) 67225a5ea0d4SBryan Schumaker goto out; 67235a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 67245a5ea0d4SBryan Schumaker if (status) 67255a5ea0d4SBryan Schumaker goto out; 67265a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 67275a5ea0d4SBryan Schumaker if (status) 67285a5ea0d4SBryan Schumaker goto out; 67295a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 67305a5ea0d4SBryan Schumaker out: 67315a5ea0d4SBryan Schumaker return status; 67325a5ea0d4SBryan Schumaker } 67335a5ea0d4SBryan Schumaker 673499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 673599fe60d0SBenny Halevy /* 67367c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 67377c44f1aeSWeston Andros Adamson */ 67387c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 67397c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 67407c44f1aeSWeston Andros Adamson void *res) 67417c44f1aeSWeston Andros Adamson { 67427c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 67437c44f1aeSWeston Andros Adamson int status; 67447c44f1aeSWeston Andros Adamson 67457c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 67467c44f1aeSWeston Andros Adamson if (!status) 67477c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 67487c44f1aeSWeston Andros Adamson return status; 67497c44f1aeSWeston Andros Adamson } 67507c44f1aeSWeston Andros Adamson 67517c44f1aeSWeston Andros Adamson /* 67528b173218SRicardo Labiaga * Decode EXCHANGE_ID response 675399fe60d0SBenny Halevy */ 6754bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6755bf269551SChuck Lever struct xdr_stream *xdr, 675699fe60d0SBenny Halevy void *res) 675799fe60d0SBenny Halevy { 675899fe60d0SBenny Halevy struct compound_hdr hdr; 675999fe60d0SBenny Halevy int status; 676099fe60d0SBenny Halevy 6761bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 676299fe60d0SBenny Halevy if (!status) 6763bf269551SChuck Lever status = decode_exchange_id(xdr, res); 676499fe60d0SBenny Halevy return status; 676599fe60d0SBenny Halevy } 67662050f0ccSAndy Adamson 67672050f0ccSAndy Adamson /* 67688b173218SRicardo Labiaga * Decode CREATE_SESSION response 6769fc931582SAndy Adamson */ 6770bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6771bf269551SChuck Lever struct xdr_stream *xdr, 6772fc931582SAndy Adamson struct nfs41_create_session_res *res) 6773fc931582SAndy Adamson { 6774fc931582SAndy Adamson struct compound_hdr hdr; 6775fc931582SAndy Adamson int status; 6776fc931582SAndy Adamson 6777bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6778fc931582SAndy Adamson if (!status) 6779bf269551SChuck Lever status = decode_create_session(xdr, res); 6780fc931582SAndy Adamson return status; 6781fc931582SAndy Adamson } 6782fc931582SAndy Adamson 6783fc931582SAndy Adamson /* 67848b173218SRicardo Labiaga * Decode DESTROY_SESSION response 67850f3e66c6SAndy Adamson */ 6786bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6787bf269551SChuck Lever struct xdr_stream *xdr, 6788bf269551SChuck Lever void *res) 67890f3e66c6SAndy Adamson { 67900f3e66c6SAndy Adamson struct compound_hdr hdr; 67910f3e66c6SAndy Adamson int status; 67920f3e66c6SAndy Adamson 6793bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67940f3e66c6SAndy Adamson if (!status) 6795bf269551SChuck Lever status = decode_destroy_session(xdr, res); 67960f3e66c6SAndy Adamson return status; 67970f3e66c6SAndy Adamson } 67980f3e66c6SAndy Adamson 67990f3e66c6SAndy Adamson /* 680066245539STrond Myklebust * Decode DESTROY_CLIENTID response 680166245539STrond Myklebust */ 680266245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 680366245539STrond Myklebust struct xdr_stream *xdr, 680466245539STrond Myklebust void *res) 680566245539STrond Myklebust { 680666245539STrond Myklebust struct compound_hdr hdr; 680766245539STrond Myklebust int status; 680866245539STrond Myklebust 680966245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 681066245539STrond Myklebust if (!status) 681166245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 681266245539STrond Myklebust return status; 681366245539STrond Myklebust } 681466245539STrond Myklebust 681566245539STrond Myklebust /* 68168b173218SRicardo Labiaga * Decode SEQUENCE response 6817fc01cea9SAndy Adamson */ 6818bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6819bf269551SChuck Lever struct xdr_stream *xdr, 6820fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6821fc01cea9SAndy Adamson { 6822fc01cea9SAndy Adamson struct compound_hdr hdr; 6823fc01cea9SAndy Adamson int status; 6824fc01cea9SAndy Adamson 6825bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6826fc01cea9SAndy Adamson if (!status) 6827bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6828fc01cea9SAndy Adamson return status; 6829fc01cea9SAndy Adamson } 6830fc01cea9SAndy Adamson 6831fc01cea9SAndy Adamson /* 68328b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 68332050f0ccSAndy Adamson */ 6834bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6835bf269551SChuck Lever struct xdr_stream *xdr, 68362050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 68372050f0ccSAndy Adamson { 68382050f0ccSAndy Adamson struct compound_hdr hdr; 68392050f0ccSAndy Adamson int status; 68402050f0ccSAndy Adamson 6841bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68422050f0ccSAndy Adamson if (!status) 6843bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 68442050f0ccSAndy Adamson if (!status) 6845bf269551SChuck Lever status = decode_putrootfh(xdr); 68462050f0ccSAndy Adamson if (!status) 6847bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 68482050f0ccSAndy Adamson return status; 68492050f0ccSAndy Adamson } 685018019753SRicardo Labiaga 685118019753SRicardo Labiaga /* 685218019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 685318019753SRicardo Labiaga */ 6854bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6855bf269551SChuck Lever struct xdr_stream *xdr, 685618019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 685718019753SRicardo Labiaga { 685818019753SRicardo Labiaga struct compound_hdr hdr; 685918019753SRicardo Labiaga int status; 686018019753SRicardo Labiaga 6861bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 686218019753SRicardo Labiaga if (!status) 6863bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 686418019753SRicardo Labiaga if (!status) 6865bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 686618019753SRicardo Labiaga return status; 686718019753SRicardo Labiaga } 6868b1f69b75SAndy Adamson 6869b1f69b75SAndy Adamson /* 68707f11d8d3SAndy Adamson * Decode GETDEVICELIST response 68717f11d8d3SAndy Adamson */ 68727f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 68737f11d8d3SAndy Adamson struct xdr_stream *xdr, 68747f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 68757f11d8d3SAndy Adamson { 68767f11d8d3SAndy Adamson struct compound_hdr hdr; 68777f11d8d3SAndy Adamson int status; 68787f11d8d3SAndy Adamson 68797f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 68807f11d8d3SAndy Adamson 68817f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 68827f11d8d3SAndy Adamson if (status != 0) 68837f11d8d3SAndy Adamson goto out; 68847f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 68857f11d8d3SAndy Adamson if (status != 0) 68867f11d8d3SAndy Adamson goto out; 68877f11d8d3SAndy Adamson status = decode_putfh(xdr); 68887f11d8d3SAndy Adamson if (status != 0) 68897f11d8d3SAndy Adamson goto out; 68907f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 68917f11d8d3SAndy Adamson out: 68927f11d8d3SAndy Adamson return status; 68937f11d8d3SAndy Adamson } 68947f11d8d3SAndy Adamson 68957f11d8d3SAndy Adamson /* 6896b1f69b75SAndy Adamson * Decode GETDEVINFO response 6897b1f69b75SAndy Adamson */ 6898bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6899bf269551SChuck Lever struct xdr_stream *xdr, 6900b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6901b1f69b75SAndy Adamson { 6902b1f69b75SAndy Adamson struct compound_hdr hdr; 6903b1f69b75SAndy Adamson int status; 6904b1f69b75SAndy Adamson 6905bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6906b1f69b75SAndy Adamson if (status != 0) 6907b1f69b75SAndy Adamson goto out; 6908bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6909b1f69b75SAndy Adamson if (status != 0) 6910b1f69b75SAndy Adamson goto out; 6911bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6912b1f69b75SAndy Adamson out: 6913b1f69b75SAndy Adamson return status; 6914b1f69b75SAndy Adamson } 6915b1f69b75SAndy Adamson 6916b1f69b75SAndy Adamson /* 6917b1f69b75SAndy Adamson * Decode LAYOUTGET response 6918b1f69b75SAndy Adamson */ 6919bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6920bf269551SChuck Lever struct xdr_stream *xdr, 6921b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6922b1f69b75SAndy Adamson { 6923b1f69b75SAndy Adamson struct compound_hdr hdr; 6924b1f69b75SAndy Adamson int status; 6925b1f69b75SAndy Adamson 6926bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6927b1f69b75SAndy Adamson if (status) 6928b1f69b75SAndy Adamson goto out; 6929bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6930b1f69b75SAndy Adamson if (status) 6931b1f69b75SAndy Adamson goto out; 6932bf269551SChuck Lever status = decode_putfh(xdr); 6933b1f69b75SAndy Adamson if (status) 6934b1f69b75SAndy Adamson goto out; 6935bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6936b1f69b75SAndy Adamson out: 6937b1f69b75SAndy Adamson return status; 6938b1f69b75SAndy Adamson } 6939863a3c6cSAndy Adamson 6940863a3c6cSAndy Adamson /* 6941cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6942cbe82603SBenny Halevy */ 6943cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6944cbe82603SBenny Halevy struct xdr_stream *xdr, 6945cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6946cbe82603SBenny Halevy { 6947cbe82603SBenny Halevy struct compound_hdr hdr; 6948cbe82603SBenny Halevy int status; 6949cbe82603SBenny Halevy 6950cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6951cbe82603SBenny Halevy if (status) 6952cbe82603SBenny Halevy goto out; 6953cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6954cbe82603SBenny Halevy if (status) 6955cbe82603SBenny Halevy goto out; 6956cbe82603SBenny Halevy status = decode_putfh(xdr); 6957cbe82603SBenny Halevy if (status) 6958cbe82603SBenny Halevy goto out; 6959cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6960cbe82603SBenny Halevy out: 6961cbe82603SBenny Halevy return status; 6962cbe82603SBenny Halevy } 6963cbe82603SBenny Halevy 6964cbe82603SBenny Halevy /* 6965863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6966863a3c6cSAndy Adamson */ 6967863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6968863a3c6cSAndy Adamson struct xdr_stream *xdr, 6969863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6970863a3c6cSAndy Adamson { 6971863a3c6cSAndy Adamson struct compound_hdr hdr; 6972863a3c6cSAndy Adamson int status; 6973863a3c6cSAndy Adamson 6974863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6975863a3c6cSAndy Adamson if (status) 6976863a3c6cSAndy Adamson goto out; 6977863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6978863a3c6cSAndy Adamson if (status) 6979863a3c6cSAndy Adamson goto out; 6980863a3c6cSAndy Adamson status = decode_putfh(xdr); 6981863a3c6cSAndy Adamson if (status) 6982863a3c6cSAndy Adamson goto out; 6983863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6984863a3c6cSAndy Adamson if (status) 6985863a3c6cSAndy Adamson goto out; 69866926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6987863a3c6cSAndy Adamson out: 6988863a3c6cSAndy Adamson return status; 6989863a3c6cSAndy Adamson } 6990fca78d6dSBryan Schumaker 6991fca78d6dSBryan Schumaker /* 6992fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 6993fca78d6dSBryan Schumaker */ 6994fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 6995fca78d6dSBryan Schumaker struct xdr_stream *xdr, 6996fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 6997fca78d6dSBryan Schumaker { 6998fca78d6dSBryan Schumaker struct compound_hdr hdr; 6999fca78d6dSBryan Schumaker int status; 7000fca78d6dSBryan Schumaker 7001fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7002fca78d6dSBryan Schumaker if (status) 7003fca78d6dSBryan Schumaker goto out; 7004fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7005fca78d6dSBryan Schumaker if (status) 7006fca78d6dSBryan Schumaker goto out; 7007fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7008fca78d6dSBryan Schumaker if (status) 7009fca78d6dSBryan Schumaker goto out; 701031e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7011fca78d6dSBryan Schumaker out: 7012fca78d6dSBryan Schumaker return status; 7013fca78d6dSBryan Schumaker } 70147d974794SBryan Schumaker 70157d974794SBryan Schumaker /* 70167d974794SBryan Schumaker * Decode TEST_STATEID response 70177d974794SBryan Schumaker */ 70187d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 70197d974794SBryan Schumaker struct xdr_stream *xdr, 70207d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 70217d974794SBryan Schumaker { 70227d974794SBryan Schumaker struct compound_hdr hdr; 70237d974794SBryan Schumaker int status; 70247d974794SBryan Schumaker 70257d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70267d974794SBryan Schumaker if (status) 70277d974794SBryan Schumaker goto out; 70287d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70297d974794SBryan Schumaker if (status) 70307d974794SBryan Schumaker goto out; 70317d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 70327d974794SBryan Schumaker out: 70337d974794SBryan Schumaker return status; 70347d974794SBryan Schumaker } 70359aeda35fSBryan Schumaker 70369aeda35fSBryan Schumaker /* 70379aeda35fSBryan Schumaker * Decode FREE_STATEID response 70389aeda35fSBryan Schumaker */ 70399aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 70409aeda35fSBryan Schumaker struct xdr_stream *xdr, 70419aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 70429aeda35fSBryan Schumaker { 70439aeda35fSBryan Schumaker struct compound_hdr hdr; 70449aeda35fSBryan Schumaker int status; 70459aeda35fSBryan Schumaker 70469aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70479aeda35fSBryan Schumaker if (status) 70489aeda35fSBryan Schumaker goto out; 70499aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70509aeda35fSBryan Schumaker if (status) 70519aeda35fSBryan Schumaker goto out; 70529aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 70539aeda35fSBryan Schumaker out: 70549aeda35fSBryan Schumaker return status; 70559aeda35fSBryan Schumaker } 705699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 705799fe60d0SBenny Halevy 7058573c4e1eSChuck Lever /** 7059573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7060573c4e1eSChuck Lever * the local page cache. 7061573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7062573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7063573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7064573c4e1eSChuck Lever * 7065573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7066573c4e1eSChuck Lever * returned. 7067573c4e1eSChuck Lever * 7068573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7069573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7070573c4e1eSChuck Lever * on a directory already in our cache. 7071573c4e1eSChuck Lever */ 7072573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7073573c4e1eSChuck Lever int plus) 70741da177e4SLinus Torvalds { 7075256e48bbSTrond Myklebust unsigned int savep; 7076dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 70771da177e4SLinus Torvalds uint32_t len; 7078babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7079babddc72SBryan Schumaker if (unlikely(!p)) 7080babddc72SBryan Schumaker goto out_overflow; 7081c08e76d0SChuck Lever if (*p == xdr_zero) { 7082babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7083babddc72SBryan Schumaker if (unlikely(!p)) 7084babddc72SBryan Schumaker goto out_overflow; 7085c08e76d0SChuck Lever if (*p == xdr_zero) 7086573c4e1eSChuck Lever return -EAGAIN; 70871da177e4SLinus Torvalds entry->eof = 1; 7088573c4e1eSChuck Lever return -EBADCOOKIE; 70891da177e4SLinus Torvalds } 70901da177e4SLinus Torvalds 7091babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7092babddc72SBryan Schumaker if (unlikely(!p)) 7093babddc72SBryan Schumaker goto out_overflow; 70941da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 70951da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7096c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7097babddc72SBryan Schumaker 70989af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7099babddc72SBryan Schumaker if (unlikely(!p)) 7100babddc72SBryan Schumaker goto out_overflow; 71011da177e4SLinus Torvalds entry->name = (const char *) p; 71021da177e4SLinus Torvalds 71031da177e4SLinus Torvalds /* 71041da177e4SLinus Torvalds * In case the server doesn't return an inode number, 71051da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 71061da177e4SLinus Torvalds * since glibc seems to choke on it...) 71071da177e4SLinus Torvalds */ 71081da177e4SLinus Torvalds entry->ino = 1; 71094f082222STrond Myklebust entry->fattr->valid = 0; 71101da177e4SLinus Torvalds 71119af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7112babddc72SBryan Schumaker goto out_overflow; 71139af8c222STrond Myklebust 7114256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7115babddc72SBryan Schumaker goto out_overflow; 71169af8c222STrond Myklebust 7117573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 71188b7e3f49STrond Myklebust NULL, entry->server) < 0) 7119babddc72SBryan Schumaker goto out_overflow; 712028331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 712128331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 712228331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 712382f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 71249af8c222STrond Myklebust 71250b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 71260b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 71270b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 71280b26a0bfSTrond Myklebust 7129573c4e1eSChuck Lever return 0; 7130babddc72SBryan Schumaker 7131babddc72SBryan Schumaker out_overflow: 7132babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7133573c4e1eSChuck Lever return -EAGAIN; 71341da177e4SLinus Torvalds } 71351da177e4SLinus Torvalds 71361da177e4SLinus Torvalds /* 71371da177e4SLinus Torvalds * We need to translate between nfs status return values and 71381da177e4SLinus Torvalds * the local errno values which may not be the same. 71391da177e4SLinus Torvalds */ 71401da177e4SLinus Torvalds static struct { 71411da177e4SLinus Torvalds int stat; 71421da177e4SLinus Torvalds int errno; 71431da177e4SLinus Torvalds } nfs_errtbl[] = { 71441da177e4SLinus Torvalds { NFS4_OK, 0 }, 7145856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7146856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7147856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7148856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7149856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7150856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7151856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7152856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7153856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7154856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7155856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7156856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7157856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7158856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7159856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7160856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7161856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7162856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7163856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7164856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7165856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7166856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7167fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7168856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7169856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7170856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7171856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7172856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7173856dff3dSBenny Halevy { -1, -EIO } 71741da177e4SLinus Torvalds }; 71751da177e4SLinus Torvalds 71761da177e4SLinus Torvalds /* 71771da177e4SLinus Torvalds * Convert an NFS error code to a local one. 71781da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 71791da177e4SLinus Torvalds */ 71801da177e4SLinus Torvalds static int 71810a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 71821da177e4SLinus Torvalds { 71831da177e4SLinus Torvalds int i; 71841da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 71851da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 71861da177e4SLinus Torvalds return nfs_errtbl[i].errno; 71871da177e4SLinus Torvalds } 71881da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 71891da177e4SLinus Torvalds /* The server is looney tunes. */ 7190fdcb4577STrond Myklebust return -EREMOTEIO; 71911da177e4SLinus Torvalds } 71921da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 71931da177e4SLinus Torvalds * handle it. 71941da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 71951da177e4SLinus Torvalds * not conflict with native Linux error codes. 71961da177e4SLinus Torvalds */ 7197856dff3dSBenny Halevy return -stat; 71981da177e4SLinus Torvalds } 71991da177e4SLinus Torvalds 72001da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 72011da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 72021da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 72039f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7204bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 72052bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 72062bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7207cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7208cc0175c1SChuck Lever .p_name = #proc, \ 72091da177e4SLinus Torvalds } 72101da177e4SLinus Torvalds 72111da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 72121da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 72131da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 72141da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 72151da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 72161da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 72171da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 72181da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 72191da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 72201da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 72211da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 72221da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 72231da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 72241da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 72251da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 72261da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 72271da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 72281da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 72291da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 72301da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 72311da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 72321da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 72331da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 72341da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 72351da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 72361da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 72371da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 72381da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 72391da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 72401da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 72411da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 72421da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7243029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 724423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7245683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7246d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 72475a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 724899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 724999fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7250fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 72510f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7252fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 72532050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 725418019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7255b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7256b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7257863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7258cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7259fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 72607d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 72619aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 72627f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 7263ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7264ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 726566245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 726699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 72671da177e4SLinus Torvalds }; 72681da177e4SLinus Torvalds 7269a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 72701da177e4SLinus Torvalds .number = 4, 7271e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 72721da177e4SLinus Torvalds .procs = nfs4_procedures 72731da177e4SLinus Torvalds }; 72741da177e4SLinus Torvalds 72751da177e4SLinus Torvalds /* 72761da177e4SLinus Torvalds * Local variables: 72771da177e4SLinus Torvalds * c-basic-offset: 8 72781da177e4SLinus Torvalds * End: 72791da177e4SLinus Torvalds */ 7280