11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * fs/nfs/nfs4xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side XDR for NFSv4. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 The Regents of the University of Michigan. 71da177e4SLinus Torvalds * All rights reserved. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Kendrick Smith <kmsmith@umich.edu> 101da177e4SLinus Torvalds * Andy Adamson <andros@umich.edu> 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4SLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4SLinus Torvalds * are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * 1. Redistributions of source code must retain the above copyright 171da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer. 181da177e4SLinus Torvalds * 2. Redistributions in binary form must reproduce the above copyright 191da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer in the 201da177e4SLinus Torvalds * documentation and/or other materials provided with the distribution. 211da177e4SLinus Torvalds * 3. Neither the name of the University nor the names of its 221da177e4SLinus Torvalds * contributors may be used to endorse or promote products derived 231da177e4SLinus Torvalds * from this software without specific prior written permission. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 261da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 281da177e4SLinus Torvalds * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291da177e4SLinus Torvalds * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 301da177e4SLinus Torvalds * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 311da177e4SLinus Torvalds * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 321da177e4SLinus Torvalds * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 331da177e4SLinus Torvalds * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 341da177e4SLinus Torvalds * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 351da177e4SLinus Torvalds * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361da177e4SLinus Torvalds */ 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/param.h> 391da177e4SLinus Torvalds #include <linux/time.h> 401da177e4SLinus Torvalds #include <linux/mm.h> 411da177e4SLinus Torvalds #include <linux/errno.h> 421da177e4SLinus Torvalds #include <linux/string.h> 431da177e4SLinus Torvalds #include <linux/in.h> 441da177e4SLinus Torvalds #include <linux/pagemap.h> 451da177e4SLinus Torvalds #include <linux/proc_fs.h> 461da177e4SLinus Torvalds #include <linux/kdev_t.h> 47db8ac8baSWeston Andros Adamson #include <linux/module.h> 48db8ac8baSWeston Andros Adamson #include <linux/utsname.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 502449ea2eSAlexandros Batsakis #include <linux/sunrpc/msg_prot.h> 515a5ea0d4SBryan Schumaker #include <linux/sunrpc/gss_api.h> 521da177e4SLinus Torvalds #include <linux/nfs.h> 531da177e4SLinus Torvalds #include <linux/nfs4.h> 541da177e4SLinus Torvalds #include <linux/nfs_fs.h> 551da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 56f092075dSChuck Lever 574ce79717STrond Myklebust #include "nfs4_fs.h" 584882ef72SAlexandros Batsakis #include "internal.h" 59b1f69b75SAndy Adamson #include "pnfs.h" 60f092075dSChuck Lever #include "netns.h" 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 651da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 661da177e4SLinus Torvalds 670a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 681da177e4SLinus Torvalds 691da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 701da177e4SLinus Torvalds #ifdef DEBUG 711da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 721da177e4SLinus Torvalds #else 731da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 741da177e4SLinus Torvalds #endif 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds /* lock,open owner id: 779f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 781da177e4SLinus Torvalds */ 7995b72eb0STrond Myklebust #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) 80d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 819104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 821da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 831da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 841da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 851da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 869104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 879104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 889104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 899104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 901da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 911da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 921da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 931da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 941da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 951da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 961da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 971da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 98e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 9996928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 1001da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 1011da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 102bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 103bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 10488034c3dSAndy Adamson /* We support only one layout type per file system */ 10588034c3dSAndy Adamson #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) 10696928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 10796928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 10888034c3dSAndy Adamson 3 + 3 + 3 + nfs4_owner_maxsz + \ 10988034c3dSAndy Adamson nfs4_group_maxsz + decode_mdsthreshold_maxsz)) 11096928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 11196928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 11296928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1139104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1149104a55dSTrond Myklebust 1 + 2 + 1 + \ 1159104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1169104a55dSTrond Myklebust nfs4_group_maxsz + \ 1179104a55dSTrond Myklebust 4 + 4) 1181da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1191da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 12056ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 12156ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1222f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 123dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 124dae100c2SFred Isaman * layout types will be returned. 125dae100c2SFred Isaman */ 126dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 127dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1281da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1291da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1301da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1311da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 132cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 133cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 134cc38bac3SChuck Lever 1 /* sc_prog */ + \ 135cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 136cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 137cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1381da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1391da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1401da177e4SLinus Torvalds 2 + \ 1411da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1421da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1431da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1441da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1451da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1461da177e4SLinus Torvalds (op_decode_hdr_maxsz) 147e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 148e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1492cebf828STrond Myklebust #define encode_share_access_maxsz \ 1502cebf828STrond Myklebust (2) 1514882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1522cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1532cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1542cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1552cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1562cebf828STrond Myklebust open_owner_id_maxsz + \ 1572cebf828STrond Myklebust encode_opentype_maxsz + \ 1582cebf828STrond Myklebust encode_claim_null_maxsz) 1592cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1609104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1612cebf828STrond Myklebust decode_ace_maxsz) 1622cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1632cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1649104a55dSTrond Myklebust decode_stateid_maxsz + \ 1652cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1662cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1672cebf828STrond Myklebust decode_delegation_maxsz) 1689104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1699104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1709104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1719104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1729104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1739104a55dSTrond Myklebust decode_stateid_maxsz) 1749104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1759104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1769104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1779104a55dSTrond Myklebust encode_share_access_maxsz) 1789104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1799104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1809104a55dSTrond Myklebust decode_stateid_maxsz) 1819104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1829104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1839104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1849104a55dSTrond Myklebust decode_stateid_maxsz) 1859104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1869104a55dSTrond Myklebust encode_stateid_maxsz + \ 1879104a55dSTrond Myklebust encode_attrs_maxsz) 1889104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1909104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1919104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1929104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1939104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1949104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1959104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1969104a55dSTrond Myklebust decode_verifier_maxsz) 1979104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1989104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1999104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2009104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2019104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2029104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2039104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2049104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2059104a55dSTrond Myklebust decode_verifier_maxsz) 2061da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2071da177e4SLinus Torvalds nfs4_name_maxsz) 2086ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2096ce18391SBenny Halevy decode_change_info_maxsz) 2101da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2111da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2126ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2136ce18391SBenny Halevy decode_change_info_maxsz + \ 2146ce18391SBenny Halevy decode_change_info_maxsz) 2151da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2161da177e4SLinus Torvalds nfs4_name_maxsz) 2176ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 218daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2199104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2209104a55dSTrond Myklebust 7 + \ 221daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 222daccbdedSTrond Myklebust encode_lockowner_maxsz) 2239104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2249104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2259104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2269104a55dSTrond Myklebust decode_lock_denied_maxsz) 227daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 228daccbdedSTrond Myklebust encode_lockowner_maxsz) 2299104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2309104a55dSTrond Myklebust decode_lock_denied_maxsz) 2319104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2329104a55dSTrond Myklebust encode_stateid_maxsz + \ 2339104a55dSTrond Myklebust 4) 2349104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2359104a55dSTrond Myklebust decode_stateid_maxsz) 236d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 237d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 238d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 239d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 240d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2419104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2429104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2431da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2441da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 24594a6d753SChuck Lever 1 + \ 24696928206SJ. Bruce Fields nfs4_fattr_maxsz) 2471da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2481da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2499104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2509104a55dSTrond Myklebust encode_attrs_maxsz) 2512cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2522cebf828STrond Myklebust decode_change_info_maxsz + \ 2532cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2549104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2559104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2561da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2571da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2589104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2599104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2609104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2619104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2629104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2639104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 264e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 265e6889620STrond Myklebust (encode_getattr_maxsz) 266e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 267e6889620STrond Myklebust (0) 2685a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2691650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2709b7b9fccSAndy Adamson 2719b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 272fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 273fc931582SAndy Adamson 27499fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 27599fe60d0SBenny Halevy encode_verifier_maxsz + \ 27699fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 27799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 27899fe60d0SBenny Halevy 1 /* flags */ + \ 27999fe60d0SBenny Halevy 1 /* spa_how */ + \ 28099fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 281db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 282db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 283db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 284db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 285db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 286db8ac8baSWeston Andros Adamson 3 /* nii_date */) 28799fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 28899fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 28999fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 29099fe60d0SBenny Halevy 1 /* eir_flags */ + \ 29199fe60d0SBenny Halevy 1 /* spr_how */ + \ 29299fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 29399fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 29499fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 29599fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 29699fe60d0SBenny Halevy /* eir_server_scope<> */ \ 29799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 29899fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 2997d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3007d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3017d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3027d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3037d2ed9acSWeston Andros Adamson 3 /* nii_date */) 304fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 305fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 306fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 307fc931582SAndy Adamson 1 /* ca_rdma_ird */) 308fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 309fc931582SAndy Adamson 2 /* csa_clientid */ + \ 310fc931582SAndy Adamson 1 /* csa_sequence */ + \ 311fc931582SAndy Adamson 1 /* csa_flags */ + \ 312fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 313fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 314fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 315fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 316fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 317fc931582SAndy Adamson 1 /* stamp */ + \ 318fc931582SAndy Adamson 1 /* machinename.len */ + \ 319fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 320fc931582SAndy Adamson 1 /* uid */ + \ 321fc931582SAndy Adamson 1 /* gid */ + \ 322fc931582SAndy Adamson 1 /* gids.len (0) */) 323fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 324fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 325fc931582SAndy Adamson 1 /* csr_sequence */ + \ 326fc931582SAndy Adamson 1 /* csr_flags */ + \ 327fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 328fc931582SAndy Adamson decode_channel_attrs_maxsz) 3297c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3307c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3317c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3327c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3337c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3347c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3357c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3367c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3377c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3387c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3390f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3400f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 34166245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 34266245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 343fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 344fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 345fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 346fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 34718019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 34818019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3497f11d8d3SAndy Adamson #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ 3507f11d8d3SAndy Adamson encode_verifier_maxsz) 3517f11d8d3SAndy Adamson #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ 3527f11d8d3SAndy Adamson 2 /* nfs_cookie4 gdlr_cookie */ + \ 3537f11d8d3SAndy Adamson decode_verifier_maxsz \ 3547f11d8d3SAndy Adamson /* verifier4 gdlr_verifier */ + \ 3557f11d8d3SAndy Adamson 1 /* gdlr_deviceid_list count */ + \ 3567f11d8d3SAndy Adamson XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ 3577f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE) \ 3587f11d8d3SAndy Adamson /* gdlr_deviceid_list */ + \ 3597f11d8d3SAndy Adamson 1 /* bool gdlr_eof */) 360b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 361b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 362b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 363b1f69b75SAndy Adamson 1 /* layout type */ + \ 364b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 365b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 366b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 367b1f69b75SAndy Adamson 1 /* notification bitmap */) 368b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 369b1f69b75SAndy Adamson encode_stateid_maxsz) 370b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 371b1f69b75SAndy Adamson decode_stateid_maxsz + \ 372b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 373863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 374863a3c6cSAndy Adamson 2 /* offset */ + \ 375863a3c6cSAndy Adamson 2 /* length */ + \ 376863a3c6cSAndy Adamson 1 /* reclaim */ + \ 377863a3c6cSAndy Adamson encode_stateid_maxsz + \ 378863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 379863a3c6cSAndy Adamson 2 /* last byte written */ + \ 380863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 381863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 382863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 383863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 384cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 385cbe82603SBenny Halevy encode_stateid_maxsz + \ 386cbe82603SBenny Halevy 1 /* FIXME: opaque lrf_body always empty at the moment */) 387cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 388cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 389fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 390fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 3917d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 3927d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3937d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 3949aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 3959aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3969aeda35fSBryan Schumaker #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1) 3979b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3989b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3999b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 4009b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4019b7b9fccSAndy Adamson 4021da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4031da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4041da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4061da177e4SLinus Torvalds encode_putfh_maxsz + \ 4079104a55dSTrond Myklebust encode_read_maxsz) 4081da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4101da177e4SLinus Torvalds decode_putfh_maxsz + \ 4119104a55dSTrond Myklebust decode_read_maxsz) 4121da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4141da177e4SLinus Torvalds encode_putfh_maxsz + \ 4159104a55dSTrond Myklebust encode_readlink_maxsz) 4161da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4181da177e4SLinus Torvalds decode_putfh_maxsz + \ 4199104a55dSTrond Myklebust decode_readlink_maxsz) 4201da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4221da177e4SLinus Torvalds encode_putfh_maxsz + \ 4239104a55dSTrond Myklebust encode_readdir_maxsz) 4241da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4261da177e4SLinus Torvalds decode_putfh_maxsz + \ 4279104a55dSTrond Myklebust decode_readdir_maxsz) 4281da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4299b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4301da177e4SLinus Torvalds encode_putfh_maxsz + \ 4319104a55dSTrond Myklebust encode_write_maxsz + \ 4324f9838c7STrond Myklebust encode_getattr_maxsz) 4331da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4351da177e4SLinus Torvalds decode_putfh_maxsz + \ 4369104a55dSTrond Myklebust decode_write_maxsz + \ 4374f9838c7STrond Myklebust decode_getattr_maxsz) 4381da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4401da177e4SLinus Torvalds encode_putfh_maxsz + \ 4418582715eSTrond Myklebust encode_commit_maxsz) 4421da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4439b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4441da177e4SLinus Torvalds decode_putfh_maxsz + \ 4458582715eSTrond Myklebust decode_commit_maxsz) 4461da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4479b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4481da177e4SLinus Torvalds encode_putfh_maxsz + \ 4492cebf828STrond Myklebust encode_open_maxsz + \ 4506168f62cSWeston Andros Adamson encode_access_maxsz + \ 4512cebf828STrond Myklebust encode_getfh_maxsz + \ 4522cebf828STrond Myklebust encode_getattr_maxsz) 4531da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4549b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4551da177e4SLinus Torvalds decode_putfh_maxsz + \ 4562cebf828STrond Myklebust decode_open_maxsz + \ 4576168f62cSWeston Andros Adamson decode_access_maxsz + \ 4582cebf828STrond Myklebust decode_getfh_maxsz + \ 4592cebf828STrond Myklebust decode_getattr_maxsz) 4601da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4611da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4621da177e4SLinus Torvalds encode_putfh_maxsz + \ 4639104a55dSTrond Myklebust encode_open_confirm_maxsz) 4649104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4659104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4661da177e4SLinus Torvalds decode_putfh_maxsz + \ 4679104a55dSTrond Myklebust decode_open_confirm_maxsz) 4681da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4701da177e4SLinus Torvalds encode_putfh_maxsz + \ 4712cebf828STrond Myklebust encode_open_maxsz + \ 4726168f62cSWeston Andros Adamson encode_access_maxsz + \ 4732cebf828STrond Myklebust encode_getattr_maxsz) 4741da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4759b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4761da177e4SLinus Torvalds decode_putfh_maxsz + \ 4772cebf828STrond Myklebust decode_open_maxsz + \ 4786168f62cSWeston Andros Adamson decode_access_maxsz + \ 4792cebf828STrond Myklebust decode_getattr_maxsz) 4801da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4811da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4829b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4831da177e4SLinus Torvalds encode_putfh_maxsz + \ 4849104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 485516a6af6STrond Myklebust encode_getattr_maxsz) 4861da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4871da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4889b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4891da177e4SLinus Torvalds decode_putfh_maxsz + \ 4909104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 491516a6af6STrond Myklebust decode_getattr_maxsz) 4921da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4939b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4941da177e4SLinus Torvalds encode_putfh_maxsz + \ 4959104a55dSTrond Myklebust encode_close_maxsz + \ 496516a6af6STrond Myklebust encode_getattr_maxsz) 4971da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4991da177e4SLinus Torvalds decode_putfh_maxsz + \ 5009104a55dSTrond Myklebust decode_close_maxsz + \ 501516a6af6STrond Myklebust decode_getattr_maxsz) 5021da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5041da177e4SLinus Torvalds encode_putfh_maxsz + \ 5059104a55dSTrond Myklebust encode_setattr_maxsz + \ 5061da177e4SLinus Torvalds encode_getattr_maxsz) 5071da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5091da177e4SLinus Torvalds decode_putfh_maxsz + \ 5109104a55dSTrond Myklebust decode_setattr_maxsz + \ 5119104a55dSTrond Myklebust decode_getattr_maxsz) 5121da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5141da177e4SLinus Torvalds encode_putfh_maxsz + \ 5151da177e4SLinus Torvalds encode_fsinfo_maxsz) 5161da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5181da177e4SLinus Torvalds decode_putfh_maxsz + \ 5191da177e4SLinus Torvalds decode_fsinfo_maxsz) 5201da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5211da177e4SLinus Torvalds encode_renew_maxsz) 5221da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5231da177e4SLinus Torvalds decode_renew_maxsz) 5241da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5251da177e4SLinus Torvalds encode_setclientid_maxsz) 5261da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5271da177e4SLinus Torvalds decode_setclientid_maxsz) 5281da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5291da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5301da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 5311da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5321da177e4SLinus Torvalds encode_fsinfo_maxsz) 5331da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5341da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5351da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 5361da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5371da177e4SLinus Torvalds decode_fsinfo_maxsz) 5381da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5401da177e4SLinus Torvalds encode_putfh_maxsz + \ 5419104a55dSTrond Myklebust encode_lock_maxsz) 5421da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5439b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5441da177e4SLinus Torvalds decode_putfh_maxsz + \ 5459104a55dSTrond Myklebust decode_lock_maxsz) 5461da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5479b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5481da177e4SLinus Torvalds encode_putfh_maxsz + \ 5499104a55dSTrond Myklebust encode_lockt_maxsz) 5509104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5519b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5529104a55dSTrond Myklebust decode_putfh_maxsz + \ 5539104a55dSTrond Myklebust decode_lockt_maxsz) 5541da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5561da177e4SLinus Torvalds encode_putfh_maxsz + \ 5579104a55dSTrond Myklebust encode_locku_maxsz) 5581da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5599b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5601da177e4SLinus Torvalds decode_putfh_maxsz + \ 5619104a55dSTrond Myklebust decode_locku_maxsz) 562d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 563d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 564d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 565d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 566d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 567d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5681da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5701da177e4SLinus Torvalds encode_putfh_maxsz + \ 57176b32999STrond Myklebust encode_access_maxsz + \ 57276b32999STrond Myklebust encode_getattr_maxsz) 5731da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5749b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5751da177e4SLinus Torvalds decode_putfh_maxsz + \ 57676b32999STrond Myklebust decode_access_maxsz + \ 57776b32999STrond Myklebust decode_getattr_maxsz) 5781da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5799b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5801da177e4SLinus Torvalds encode_putfh_maxsz + \ 5811da177e4SLinus Torvalds encode_getattr_maxsz) 5821da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5839b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5841da177e4SLinus Torvalds decode_putfh_maxsz + \ 5851da177e4SLinus Torvalds decode_getattr_maxsz) 5861da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5879b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5881da177e4SLinus Torvalds encode_putfh_maxsz + \ 5891da177e4SLinus Torvalds encode_lookup_maxsz + \ 5901da177e4SLinus Torvalds encode_getattr_maxsz + \ 5911da177e4SLinus Torvalds encode_getfh_maxsz) 5921da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5939b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5941da177e4SLinus Torvalds decode_putfh_maxsz + \ 595e6889620STrond Myklebust decode_lookup_maxsz + \ 5961da177e4SLinus Torvalds decode_getattr_maxsz + \ 5971da177e4SLinus Torvalds decode_getfh_maxsz) 5981da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5999b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6001da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6011da177e4SLinus Torvalds encode_getattr_maxsz + \ 6021da177e4SLinus Torvalds encode_getfh_maxsz) 6031da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6051da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6061da177e4SLinus Torvalds decode_getattr_maxsz + \ 6071da177e4SLinus Torvalds decode_getfh_maxsz) 6081da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6101da177e4SLinus Torvalds encode_putfh_maxsz + \ 611778d2817STrond Myklebust encode_remove_maxsz) 6121da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6141da177e4SLinus Torvalds decode_putfh_maxsz + \ 615778d2817STrond Myklebust decode_remove_maxsz) 6161da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6179b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6181da177e4SLinus Torvalds encode_putfh_maxsz + \ 6191da177e4SLinus Torvalds encode_savefh_maxsz + \ 6201da177e4SLinus Torvalds encode_putfh_maxsz + \ 621778d2817STrond Myklebust encode_rename_maxsz) 6221da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6241da177e4SLinus Torvalds decode_putfh_maxsz + \ 6251da177e4SLinus Torvalds decode_savefh_maxsz + \ 6261da177e4SLinus Torvalds decode_putfh_maxsz + \ 627778d2817STrond Myklebust decode_rename_maxsz) 6281da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6299b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6301da177e4SLinus Torvalds encode_putfh_maxsz + \ 6311da177e4SLinus Torvalds encode_savefh_maxsz + \ 6321da177e4SLinus Torvalds encode_putfh_maxsz + \ 63391ba2eeeSTrond Myklebust encode_link_maxsz + \ 63491ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 635a9f6991bSTrond Myklebust encode_getattr_maxsz) 6361da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6381da177e4SLinus Torvalds decode_putfh_maxsz + \ 6391da177e4SLinus Torvalds decode_savefh_maxsz + \ 6401da177e4SLinus Torvalds decode_putfh_maxsz + \ 64191ba2eeeSTrond Myklebust decode_link_maxsz + \ 64291ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 64391ba2eeeSTrond Myklebust decode_getattr_maxsz) 6441da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6461da177e4SLinus Torvalds encode_putfh_maxsz + \ 6471da177e4SLinus Torvalds encode_symlink_maxsz + \ 6481da177e4SLinus Torvalds encode_getattr_maxsz + \ 6491da177e4SLinus Torvalds encode_getfh_maxsz) 6501da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6519b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6521da177e4SLinus Torvalds decode_putfh_maxsz + \ 6531da177e4SLinus Torvalds decode_symlink_maxsz + \ 6541da177e4SLinus Torvalds decode_getattr_maxsz + \ 6551da177e4SLinus Torvalds decode_getfh_maxsz) 6561da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6581da177e4SLinus Torvalds encode_putfh_maxsz + \ 6591da177e4SLinus Torvalds encode_create_maxsz + \ 66056ae19f3STrond Myklebust encode_getfh_maxsz + \ 66156ae19f3STrond Myklebust encode_getattr_maxsz) 6621da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6641da177e4SLinus Torvalds decode_putfh_maxsz + \ 6651da177e4SLinus Torvalds decode_create_maxsz + \ 66656ae19f3STrond Myklebust decode_getfh_maxsz + \ 66756ae19f3STrond Myklebust decode_getattr_maxsz) 6681da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6701da177e4SLinus Torvalds encode_putfh_maxsz + \ 6711da177e4SLinus Torvalds encode_getattr_maxsz) 6721da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6739b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6741da177e4SLinus Torvalds decode_putfh_maxsz + \ 6751da177e4SLinus Torvalds decode_getattr_maxsz) 6761da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6779b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6781da177e4SLinus Torvalds encode_putfh_maxsz + \ 6799104a55dSTrond Myklebust encode_statfs_maxsz) 6801da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6819b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6821da177e4SLinus Torvalds decode_putfh_maxsz + \ 6839104a55dSTrond Myklebust decode_statfs_maxsz) 6841da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 686ab91f264STrond Myklebust encode_putfh_maxsz + \ 6871da177e4SLinus Torvalds encode_getattr_maxsz) 6881da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6899b7b9fccSAndy Adamson decode_sequence_maxsz + \ 690ab91f264STrond Myklebust decode_putfh_maxsz + \ 6911da177e4SLinus Torvalds decode_getattr_maxsz) 6921da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6939b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6941da177e4SLinus Torvalds encode_putfh_maxsz + \ 695fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 696fa178f29STrond Myklebust encode_getattr_maxsz) 6971da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 699fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 700fa178f29STrond Myklebust decode_getattr_maxsz) 701029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7029b7b9fccSAndy Adamson encode_sequence_maxsz + \ 703029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7049104a55dSTrond Myklebust encode_getacl_maxsz) 705029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7069b7b9fccSAndy Adamson decode_sequence_maxsz + \ 707029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7089104a55dSTrond Myklebust decode_getacl_maxsz) 70923ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7109b7b9fccSAndy Adamson encode_sequence_maxsz + \ 71123ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7129104a55dSTrond Myklebust encode_setacl_maxsz) 71323ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7149b7b9fccSAndy Adamson decode_sequence_maxsz + \ 71523ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7169104a55dSTrond Myklebust decode_setacl_maxsz) 717683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 718683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 720683b57b4STrond Myklebust encode_putfh_maxsz + \ 721e6889620STrond Myklebust encode_lookup_maxsz + \ 722e6889620STrond Myklebust encode_fs_locations_maxsz) 723683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 724683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 726683b57b4STrond Myklebust decode_putfh_maxsz + \ 727e6889620STrond Myklebust decode_lookup_maxsz + \ 728e6889620STrond Myklebust decode_fs_locations_maxsz) 7295a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7305a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7315a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7325a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7335a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7345a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7355a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7365a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 73799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7387c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7397c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7407c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7417c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7427c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7437c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 74499fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 74599fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 74699fe60d0SBenny Halevy encode_exchange_id_maxsz) 74799fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 74899fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 74999fe60d0SBenny Halevy decode_exchange_id_maxsz) 750fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 751fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 752fc931582SAndy Adamson encode_create_session_maxsz) 753fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 754fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 755fc931582SAndy Adamson decode_create_session_maxsz) 7560f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7570f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7580f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7590f3e66c6SAndy Adamson decode_destroy_session_maxsz) 76066245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 76166245539STrond Myklebust encode_destroy_clientid_maxsz) 76266245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 76366245539STrond Myklebust decode_destroy_clientid_maxsz) 764fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 765fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 766fc01cea9SAndy Adamson encode_sequence_maxsz) 767fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 768fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 769fc01cea9SAndy Adamson decode_sequence_maxsz) 7702050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7712050f0ccSAndy Adamson encode_sequence_maxsz + \ 7722050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7732050f0ccSAndy Adamson encode_fsinfo_maxsz) 7742050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7752050f0ccSAndy Adamson decode_sequence_maxsz + \ 7762050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7772050f0ccSAndy Adamson decode_fsinfo_maxsz) 77818019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 77918019753SRicardo Labiaga encode_sequence_maxsz + \ 78018019753SRicardo Labiaga encode_reclaim_complete_maxsz) 78118019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 78218019753SRicardo Labiaga decode_sequence_maxsz + \ 78318019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7847f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 7857f11d8d3SAndy Adamson encode_sequence_maxsz + \ 7867f11d8d3SAndy Adamson encode_putfh_maxsz + \ 7877f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 7887f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 7897f11d8d3SAndy Adamson decode_sequence_maxsz + \ 7907f11d8d3SAndy Adamson decode_putfh_maxsz + \ 7917f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 792b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 793b1f69b75SAndy Adamson encode_sequence_maxsz +\ 794b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 795b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 796b1f69b75SAndy Adamson decode_sequence_maxsz + \ 797b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 798b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 799b1f69b75SAndy Adamson encode_sequence_maxsz + \ 800b1f69b75SAndy Adamson encode_putfh_maxsz + \ 801b1f69b75SAndy Adamson encode_layoutget_maxsz) 802b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 803b1f69b75SAndy Adamson decode_sequence_maxsz + \ 804b1f69b75SAndy Adamson decode_putfh_maxsz + \ 805b1f69b75SAndy Adamson decode_layoutget_maxsz) 806863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 807863a3c6cSAndy Adamson encode_sequence_maxsz +\ 808863a3c6cSAndy Adamson encode_putfh_maxsz + \ 809863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 810863a3c6cSAndy Adamson encode_getattr_maxsz) 811863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 812863a3c6cSAndy Adamson decode_sequence_maxsz + \ 813863a3c6cSAndy Adamson decode_putfh_maxsz + \ 814863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 815863a3c6cSAndy Adamson decode_getattr_maxsz) 816cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 817cbe82603SBenny Halevy encode_sequence_maxsz + \ 818cbe82603SBenny Halevy encode_putfh_maxsz + \ 819cbe82603SBenny Halevy encode_layoutreturn_maxsz) 820cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 821cbe82603SBenny Halevy decode_sequence_maxsz + \ 822cbe82603SBenny Halevy decode_putfh_maxsz + \ 823cbe82603SBenny Halevy decode_layoutreturn_maxsz) 824fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 825fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 826fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 827fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 828fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 829fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 830fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 831fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8327d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8337d974794SBryan Schumaker encode_sequence_maxsz + \ 8347d974794SBryan Schumaker encode_test_stateid_maxsz) 8357d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8367d974794SBryan Schumaker decode_sequence_maxsz + \ 8377d974794SBryan Schumaker decode_test_stateid_maxsz) 8389aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8399aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8409aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8419aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8429aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8439aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8442449ea2eSAlexandros Batsakis 8452449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8462449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8472449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8482449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8492449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8502449ea2eSAlexandros Batsakis XDR_UNIT); 8512449ea2eSAlexandros Batsakis 8522449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8532449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8542449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8552449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8562449ea2eSAlexandros Batsakis XDR_UNIT); 85799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8581da177e4SLinus Torvalds 859bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 860bca79478STrond Myklebust [NF4BAD] = 0, 861bca79478STrond Myklebust [NF4REG] = S_IFREG, 862bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 863bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 864bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 865bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 866bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 867bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 868bca79478STrond Myklebust [NF4ATTRDIR] = 0, 869bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8701da177e4SLinus Torvalds }; 8711da177e4SLinus Torvalds 8721da177e4SLinus Torvalds struct compound_hdr { 8731da177e4SLinus Torvalds int32_t status; 8741da177e4SLinus Torvalds uint32_t nops; 875d017931cSAndy Adamson __be32 * nops_p; 8761da177e4SLinus Torvalds uint32_t taglen; 8771da177e4SLinus Torvalds char * tag; 8780c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 87966cc0429SBenny Halevy u32 minorversion; 8801da177e4SLinus Torvalds }; 8811da177e4SLinus Torvalds 88213c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 88313c65ce9SBenny Halevy { 88413c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 88513c65ce9SBenny Halevy BUG_ON(!p); 88613c65ce9SBenny Halevy return p; 88713c65ce9SBenny Halevy } 8881da177e4SLinus Torvalds 889cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 890cb17e556STrond Myklebust { 891cb17e556STrond Myklebust __be32 *p; 892cb17e556STrond Myklebust 893cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 894cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 895cb17e556STrond Myklebust } 896cb17e556STrond Myklebust 8971da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 8981da177e4SLinus Torvalds { 8998687b63aSAl Viro __be32 *p; 9001da177e4SLinus Torvalds 9016fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 9021da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 9031da177e4SLinus Torvalds } 9041da177e4SLinus Torvalds 9054ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9064ade9821STrond Myklebust { 9074ade9821STrond Myklebust __be32 *p; 9084ade9821STrond Myklebust 9094ade9821STrond Myklebust p = reserve_space(xdr, 4); 9104ade9821STrond Myklebust *p = cpu_to_be32(n); 9114ade9821STrond Myklebust } 9124ade9821STrond Myklebust 913ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 914ff2eb681STrond Myklebust { 915ff2eb681STrond Myklebust __be32 *p; 916ff2eb681STrond Myklebust 917ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 918ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 919ff2eb681STrond Myklebust } 920ff2eb681STrond Myklebust 9214ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9224ade9821STrond Myklebust const struct nfs_seqid *seqid) 9234ade9821STrond Myklebust { 9244ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 9254ade9821STrond Myklebust } 9264ade9821STrond Myklebust 9270c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9280c4e8c18SBenny Halevy struct rpc_rqst *req, 9290c4e8c18SBenny Halevy struct compound_hdr *hdr) 9301da177e4SLinus Torvalds { 9318687b63aSAl Viro __be32 *p; 932a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9330c4e8c18SBenny Halevy 9340c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9350c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9360c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9370c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 9406fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9416fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 942e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 943d017931cSAndy Adamson hdr->nops_p = p; 94434558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 945d017931cSAndy Adamson } 946d017931cSAndy Adamson 947ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 948ab19b481STrond Myklebust uint32_t replen, 949ab19b481STrond Myklebust struct compound_hdr *hdr) 950ab19b481STrond Myklebust { 951ab19b481STrond Myklebust encode_uint32(xdr, op); 952ab19b481STrond Myklebust hdr->nops++; 953ab19b481STrond Myklebust hdr->replen += replen; 954ab19b481STrond Myklebust } 955ab19b481STrond Myklebust 956d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 957d017931cSAndy Adamson { 958fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 959d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9601da177e4SLinus Torvalds } 9611da177e4SLinus Torvalds 962ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 963ea9d23f5STrond Myklebust { 9642d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 965ea9d23f5STrond Myklebust } 966ea9d23f5STrond Myklebust 9671da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9681da177e4SLinus Torvalds { 969cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 9701da177e4SLinus Torvalds } 9711da177e4SLinus Torvalds 972cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9731da177e4SLinus Torvalds { 9741da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9751da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9761da177e4SLinus Torvalds int owner_namelen = 0; 9771da177e4SLinus Torvalds int owner_grouplen = 0; 9788687b63aSAl Viro __be32 *p; 9798687b63aSAl Viro __be32 *q; 9801da177e4SLinus Torvalds int len; 9811da177e4SLinus Torvalds uint32_t bmval0 = 0; 9821da177e4SLinus Torvalds uint32_t bmval1 = 0; 9831da177e4SLinus Torvalds 9841da177e4SLinus Torvalds /* 9851da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9861da177e4SLinus Torvalds * In the worst-case, this would be 9871da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9881da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 98923ec6965SJ. Bruce Fields * such as owner/group. 9901da177e4SLinus Torvalds */ 9911da177e4SLinus Torvalds len = 16; 9921da177e4SLinus Torvalds 9931da177e4SLinus Torvalds /* Sigh */ 9941da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9951da177e4SLinus Torvalds len += 8; 9961da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 9971da177e4SLinus Torvalds len += 4; 9981da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 999e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10001da177e4SLinus Torvalds if (owner_namelen < 0) { 1001fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 10021da177e4SLinus Torvalds iap->ia_uid); 10031da177e4SLinus Torvalds /* XXX */ 10041da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10051da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10061da177e4SLinus Torvalds /* goto out; */ 10071da177e4SLinus Torvalds } 10081da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1011e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10121da177e4SLinus Torvalds if (owner_grouplen < 0) { 1013fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 10141da177e4SLinus Torvalds iap->ia_gid); 10151da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10161da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10171da177e4SLinus Torvalds /* goto out; */ 10181da177e4SLinus Torvalds } 10191da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10201da177e4SLinus Torvalds } 10211da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 10221da177e4SLinus Torvalds len += 16; 10231da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 10241da177e4SLinus Torvalds len += 4; 10251da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 10261da177e4SLinus Torvalds len += 16; 10271da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 10281da177e4SLinus Torvalds len += 4; 102913c65ce9SBenny Halevy p = reserve_space(xdr, len); 10301da177e4SLinus Torvalds 10311da177e4SLinus Torvalds /* 10321da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 10331da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 10341da177e4SLinus Torvalds */ 1035e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 10361da177e4SLinus Torvalds q = p; 10371da177e4SLinus Torvalds p += 3; 10381da177e4SLinus Torvalds 10391da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 10401da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 1041b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 10421da177e4SLinus Torvalds } 10431da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10441da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1045e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10461da177e4SLinus Torvalds } 10471da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10481da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1049811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10501da177e4SLinus Torvalds } 10511da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10521da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1053811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10541da177e4SLinus Torvalds } 10551da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10561da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1057e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1058e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1059d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1060d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10611da177e4SLinus Torvalds } 10621da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10631da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1064e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10651da177e4SLinus Torvalds } 10661da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10671da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1068e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1069e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1070e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1071e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10721da177e4SLinus Torvalds } 10731da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10741da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1075e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10761da177e4SLinus Torvalds } 10771da177e4SLinus Torvalds 10781da177e4SLinus Torvalds /* 10791da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10801da177e4SLinus Torvalds */ 10811da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1082f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10831da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10841da177e4SLinus Torvalds BUG(); 10851da177e4SLinus Torvalds } 10861da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10871da177e4SLinus Torvalds *q++ = htonl(bmval0); 10881da177e4SLinus Torvalds *q++ = htonl(bmval1); 108934558513SBenny Halevy *q = htonl(len); 10901da177e4SLinus Torvalds 10911da177e4SLinus Torvalds /* out: */ 10921da177e4SLinus Torvalds } 10931da177e4SLinus Torvalds 1094cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10951da177e4SLinus Torvalds { 1096475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1097475d4ba0STrond Myklebust encode_uint32(xdr, access); 10981da177e4SLinus Torvalds } 10991da177e4SLinus Torvalds 1100cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11011da177e4SLinus Torvalds { 1102ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11034ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1104ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 11051da177e4SLinus Torvalds } 11061da177e4SLinus Torvalds 11070b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11081da177e4SLinus Torvalds { 11098687b63aSAl Viro __be32 *p; 11101da177e4SLinus Torvalds 1111475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1112475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1113b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 111434558513SBenny Halevy *p = cpu_to_be32(args->count); 11151da177e4SLinus Torvalds } 11161da177e4SLinus Torvalds 1117cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11181da177e4SLinus Torvalds { 11198687b63aSAl Viro __be32 *p; 11201da177e4SLinus Torvalds 1121475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1122475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds switch (create->ftype) { 11251da177e4SLinus Torvalds case NF4LNK: 112613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 112734558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 112894a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11291da177e4SLinus Torvalds break; 11301da177e4SLinus Torvalds 11311da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 113213c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1133e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 113434558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11351da177e4SLinus Torvalds break; 11361da177e4SLinus Torvalds 11371da177e4SLinus Torvalds default: 11381da177e4SLinus Torvalds break; 11391da177e4SLinus Torvalds } 11401da177e4SLinus Torvalds 1141811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1142cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11431da177e4SLinus Torvalds } 11441da177e4SLinus Torvalds 1145cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11461da177e4SLinus Torvalds { 11478687b63aSAl Viro __be32 *p; 11481da177e4SLinus Torvalds 1149475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1150475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1151e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 115234558513SBenny Halevy *p = cpu_to_be32(bitmap); 11531da177e4SLinus Torvalds } 11541da177e4SLinus Torvalds 1155cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11561da177e4SLinus Torvalds { 11578687b63aSAl Viro __be32 *p; 11581da177e4SLinus Torvalds 1159475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1160475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1161e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1162e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 116334558513SBenny Halevy *p = cpu_to_be32(bm1); 11641da177e4SLinus Torvalds } 11651da177e4SLinus Torvalds 1166dae100c2SFred Isaman static void 1167dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1168dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1169dae100c2SFred Isaman struct compound_hdr *hdr) 1170dae100c2SFred Isaman { 1171dae100c2SFred Isaman __be32 *p; 1172dae100c2SFred Isaman 1173ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1174dae100c2SFred Isaman if (bm2) { 1175dae100c2SFred Isaman p = reserve_space(xdr, 16); 1176dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1177dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1178dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1179dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1180dae100c2SFred Isaman } else if (bm1) { 1181dae100c2SFred Isaman p = reserve_space(xdr, 12); 1182dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1183dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1184dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1185dae100c2SFred Isaman } else { 1186dae100c2SFred Isaman p = reserve_space(xdr, 8); 1187dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1188dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1189dae100c2SFred Isaman } 1190dae100c2SFred Isaman } 1191dae100c2SFred Isaman 1192cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11931da177e4SLinus Torvalds { 1194cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1195d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11961da177e4SLinus Torvalds } 11971da177e4SLinus Torvalds 119888034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 11991549210fSTrond Myklebust const u32 *open_bitmap, 120088034c3dSAndy Adamson struct compound_hdr *hdr) 120188034c3dSAndy Adamson { 120288034c3dSAndy Adamson encode_getattr_three(xdr, 12031549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12041549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12051549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 120688034c3dSAndy Adamson hdr); 120788034c3dSAndy Adamson } 120888034c3dSAndy Adamson 1209cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12101da177e4SLinus Torvalds { 1211dae100c2SFred Isaman encode_getattr_three(xdr, 1212dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1213dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1214dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1215dae100c2SFred Isaman hdr); 12161da177e4SLinus Torvalds } 12171da177e4SLinus Torvalds 1218cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1219830b8e33SManoj Naik { 1220cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1221cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1222830b8e33SManoj Naik } 1223830b8e33SManoj Naik 1224cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12251da177e4SLinus Torvalds { 1226ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12271da177e4SLinus Torvalds } 12281da177e4SLinus Torvalds 1229cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12301da177e4SLinus Torvalds { 1231ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12326fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12331da177e4SLinus Torvalds } 12341da177e4SLinus Torvalds 1235911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1236911d1aafSTrond Myklebust { 1237f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1238911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1239911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1240911d1aafSTrond Myklebust } 1241911d1aafSTrond Myklebust 1242911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1243911d1aafSTrond Myklebust { 1244911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1245911d1aafSTrond Myklebust return ~(uint64_t)0; 1246911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1247911d1aafSTrond Myklebust } 1248911d1aafSTrond Myklebust 1249daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1250daccbdedSTrond Myklebust { 1251daccbdedSTrond Myklebust __be32 *p; 1252daccbdedSTrond Myklebust 1253d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1254daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1255d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1256daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1257d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1258daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1259daccbdedSTrond Myklebust } 1260daccbdedSTrond Myklebust 12611da177e4SLinus Torvalds /* 12621da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12631da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12641da177e4SLinus Torvalds */ 1265cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12661da177e4SLinus Torvalds { 12678687b63aSAl Viro __be32 *p; 12681da177e4SLinus Torvalds 1269475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1270475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1271e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1272e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1273b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1274b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 127534558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1276911d1aafSTrond Myklebust if (args->new_lock_owner){ 12774ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1278ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->open_stateid); 12794ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1280daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12811da177e4SLinus Torvalds } 12821da177e4SLinus Torvalds else { 1283ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->lock_stateid); 12844ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 12851da177e4SLinus Torvalds } 12861da177e4SLinus Torvalds } 12871da177e4SLinus Torvalds 1288cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12891da177e4SLinus Torvalds { 12908687b63aSAl Viro __be32 *p; 12911da177e4SLinus Torvalds 1292475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1293475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1294e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1295b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1296b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1297daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12981da177e4SLinus Torvalds } 12991da177e4SLinus Torvalds 1300cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13011da177e4SLinus Torvalds { 13028687b63aSAl Viro __be32 *p; 13031da177e4SLinus Torvalds 1304475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1305475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13064ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1307ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 1308ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1309b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 131034558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13111da177e4SLinus Torvalds } 13121da177e4SLinus Torvalds 1313d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1314d3c7b7ccSTrond Myklebust { 1315ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1316d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1317d3c7b7ccSTrond Myklebust } 1318d3c7b7ccSTrond Myklebust 1319cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13201da177e4SLinus Torvalds { 1321ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13226fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13231da177e4SLinus Torvalds } 13241da177e4SLinus Torvalds 1325dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13261da177e4SLinus Torvalds { 13278687b63aSAl Viro __be32 *p; 13281da177e4SLinus Torvalds 132913c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1330dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13311da177e4SLinus Torvalds case FMODE_READ: 1332e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13331da177e4SLinus Torvalds break; 13341da177e4SLinus Torvalds case FMODE_WRITE: 1335e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13361da177e4SLinus Torvalds break; 13371da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1338e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13391da177e4SLinus Torvalds break; 13401da177e4SLinus Torvalds default: 1341e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13421da177e4SLinus Torvalds } 134334558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13441da177e4SLinus Torvalds } 13451da177e4SLinus Torvalds 13461da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13471da177e4SLinus Torvalds { 13488687b63aSAl Viro __be32 *p; 13491da177e4SLinus Torvalds /* 13501da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13511da177e4SLinus Torvalds * owner 4 = 32 13521da177e4SLinus Torvalds */ 13534ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1354dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 135595b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1356b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 135795b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 135893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1359d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 136095b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 136195b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13621da177e4SLinus Torvalds } 13631da177e4SLinus Torvalds 13641da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13651da177e4SLinus Torvalds { 13668687b63aSAl Viro __be32 *p; 13674882ef72SAlexandros Batsakis struct nfs_client *clp; 13681da177e4SLinus Torvalds 136913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13701da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13711da177e4SLinus Torvalds case 0: 137234558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13731da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13741da177e4SLinus Torvalds break; 13751da177e4SLinus Torvalds default: 13764882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1377a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13784882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13794882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13804882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13814882ef72SAlexandros Batsakis } else { 13824882ef72SAlexandros Batsakis struct iattr dummy; 13834882ef72SAlexandros Batsakis 13844882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13854882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13864882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13874882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13884882ef72SAlexandros Batsakis } 13894882ef72SAlexandros Batsakis } else { 139034558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13911da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13921da177e4SLinus Torvalds } 13931da177e4SLinus Torvalds } 13944882ef72SAlexandros Batsakis } 13951da177e4SLinus Torvalds 13961da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13971da177e4SLinus Torvalds { 13988687b63aSAl Viro __be32 *p; 13991da177e4SLinus Torvalds 140013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14011da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14021da177e4SLinus Torvalds case 0: 140334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14041da177e4SLinus Torvalds break; 14051da177e4SLinus Torvalds default: 14061da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 140734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14081da177e4SLinus Torvalds encode_createmode(xdr, arg); 14091da177e4SLinus Torvalds } 14101da177e4SLinus Torvalds } 14111da177e4SLinus Torvalds 1412bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14131da177e4SLinus Torvalds { 14148687b63aSAl Viro __be32 *p; 14151da177e4SLinus Torvalds 141613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14171da177e4SLinus Torvalds switch (delegation_type) { 14181da177e4SLinus Torvalds case 0: 141934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14201da177e4SLinus Torvalds break; 14211da177e4SLinus Torvalds case FMODE_READ: 142234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14231da177e4SLinus Torvalds break; 14241da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 142534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14261da177e4SLinus Torvalds break; 14271da177e4SLinus Torvalds default: 14281da177e4SLinus Torvalds BUG(); 14291da177e4SLinus Torvalds } 14301da177e4SLinus Torvalds } 14311da177e4SLinus Torvalds 14321da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14331da177e4SLinus Torvalds { 14348687b63aSAl Viro __be32 *p; 14351da177e4SLinus Torvalds 143613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14381da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14391da177e4SLinus Torvalds } 14401da177e4SLinus Torvalds 1441bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14421da177e4SLinus Torvalds { 14438687b63aSAl Viro __be32 *p; 14441da177e4SLinus Torvalds 144513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14471da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14481da177e4SLinus Torvalds } 14491da177e4SLinus Torvalds 14501da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14511da177e4SLinus Torvalds { 14528687b63aSAl Viro __be32 *p; 14531da177e4SLinus Torvalds 1454ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1455ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1456ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14571da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14581da177e4SLinus Torvalds } 14591da177e4SLinus Torvalds 1460cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14611da177e4SLinus Torvalds { 1462ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 14631da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14641da177e4SLinus Torvalds encode_opentype(xdr, arg); 14651da177e4SLinus Torvalds switch (arg->claim) { 14661da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14671da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14681da177e4SLinus Torvalds break; 14691da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14701da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14711da177e4SLinus Torvalds break; 14721da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14731da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14741da177e4SLinus Torvalds break; 14751da177e4SLinus Torvalds default: 14761da177e4SLinus Torvalds BUG(); 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds } 14791da177e4SLinus Torvalds 1480cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 14811da177e4SLinus Torvalds { 1482ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1483ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 14844ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 14851da177e4SLinus Torvalds } 14861da177e4SLinus Torvalds 1487cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 14881da177e4SLinus Torvalds { 1489ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1490ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 14914ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1492dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 14931da177e4SLinus Torvalds } 14941da177e4SLinus Torvalds 1495cf8cdbe5SAndy Adamson static void 1496d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 14971da177e4SLinus Torvalds { 1498ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 14996fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15001da177e4SLinus Torvalds } 15011da177e4SLinus Torvalds 1502cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15031da177e4SLinus Torvalds { 1504ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15051da177e4SLinus Torvalds } 15061da177e4SLinus Torvalds 15074fc8796dSTrond Myklebust static void encode_open_stateid(struct xdr_stream *xdr, 15084fc8796dSTrond Myklebust const struct nfs_open_context *ctx, 15094fc8796dSTrond Myklebust const struct nfs_lock_context *l_ctx, 15104fc8796dSTrond Myklebust fmode_t fmode, 15114fc8796dSTrond Myklebust int zero_seqid) 15121da177e4SLinus Torvalds { 15131da177e4SLinus Torvalds nfs4_stateid stateid; 15141da177e4SLinus Torvalds 15151da177e4SLinus Torvalds if (ctx->state != NULL) { 15162a369153STrond Myklebust const struct nfs_lockowner *lockowner = NULL; 15172a369153STrond Myklebust 15182a369153STrond Myklebust if (l_ctx != NULL) 15192a369153STrond Myklebust lockowner = &l_ctx->lockowner; 15204fc8796dSTrond Myklebust nfs4_select_rw_stateid(&stateid, ctx->state, 15212a369153STrond Myklebust fmode, lockowner); 152289d1ea65SAndy Adamson if (zero_seqid) 15232d2f24adSTrond Myklebust stateid.seqid = 0; 1524ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &stateid); 15251da177e4SLinus Torvalds } else 1526ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 15271da177e4SLinus Torvalds } 15281da177e4SLinus Torvalds 1529cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15301da177e4SLinus Torvalds { 15318687b63aSAl Viro __be32 *p; 15321da177e4SLinus Torvalds 1533ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 1534d0b496d2STrond Myklebust encode_open_stateid(xdr, args->context, args->lock_context, 15354fc8796dSTrond Myklebust FMODE_READ, hdr->minorversion); 15361da177e4SLinus Torvalds 153713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1538b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 153934558513SBenny Halevy *p = cpu_to_be32(args->count); 15401da177e4SLinus Torvalds } 15411da177e4SLinus Torvalds 1542cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15431da177e4SLinus Torvalds { 154428331a46STrond Myklebust uint32_t attrs[2] = { 154528331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 154628331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 154728331a46STrond Myklebust }; 15486f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1549cd93710eSChuck Lever __be32 *p, verf[2]; 15501da177e4SLinus Torvalds 155182f2e547SBryan Schumaker if (readdir->plus) { 155282f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 155328331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 155482f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 155582f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 155682f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 155782f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15586f7a35bdSTrond Myklebust dircount >>= 1; 155982f2e547SBryan Schumaker } 156028331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 156128331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 156228331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15636f7a35bdSTrond Myklebust 1564475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1565ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1566cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1567cd93710eSChuck Lever p = reserve_space(xdr, 20); 15686f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15696f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15706f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 157182f2e547SBryan Schumaker 1572e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 157334558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1574cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 157544109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 157644109241SFred Isaman __func__, 1577eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1578cd93710eSChuck Lever verf[0], verf[1], 1579eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1580eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 15811da177e4SLinus Torvalds } 15821da177e4SLinus Torvalds 1583cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 15841da177e4SLinus Torvalds { 1585ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 15861da177e4SLinus Torvalds } 15871da177e4SLinus Torvalds 1588cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 15891da177e4SLinus Torvalds { 1590ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 15916fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 15921da177e4SLinus Torvalds } 15931da177e4SLinus Torvalds 1594cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 15951da177e4SLinus Torvalds { 1596ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1597811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1598811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 15991da177e4SLinus Torvalds } 16001da177e4SLinus Torvalds 1601bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1602bb4dae5eSChuck Lever struct compound_hdr *hdr) 16031da177e4SLinus Torvalds { 1604475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1605ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16061da177e4SLinus Torvalds } 16071da177e4SLinus Torvalds 1608cf8cdbe5SAndy Adamson static void 1609d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 161056ae19f3STrond Myklebust { 1611ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 161256ae19f3STrond Myklebust } 161356ae19f3STrond Myklebust 16149f06c719SChuck Lever static void 1615d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 161623ec6965SJ. Bruce Fields { 16178687b63aSAl Viro __be32 *p; 161823ec6965SJ. Bruce Fields 1619ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1620ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 162113c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1622e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 162334558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 16249f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 162513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 162634558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 162723ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 162823ec6965SJ. Bruce Fields } 162923ec6965SJ. Bruce Fields 1630cf8cdbe5SAndy Adamson static void 1631d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16321da177e4SLinus Torvalds { 1633ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16341da177e4SLinus Torvalds } 16351da177e4SLinus Torvalds 1636cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16371da177e4SLinus Torvalds { 1638ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1639ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1640cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 16411da177e4SLinus Torvalds } 16421da177e4SLinus Torvalds 1643cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16441da177e4SLinus Torvalds { 16458687b63aSAl Viro __be32 *p; 16461da177e4SLinus Torvalds 164770019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1648cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16491da177e4SLinus Torvalds 16501da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 165113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165234558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16531da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16541da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 165513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165634558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 16571da177e4SLinus Torvalds } 16581da177e4SLinus Torvalds 1659bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16601da177e4SLinus Torvalds { 1661475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1662475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1663ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1664cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 16651da177e4SLinus Torvalds } 16661da177e4SLinus Torvalds 1667cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 16681da177e4SLinus Torvalds { 16698687b63aSAl Viro __be32 *p; 16701da177e4SLinus Torvalds 1671ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 1672d0b496d2STrond Myklebust encode_open_stateid(xdr, args->context, args->lock_context, 16734fc8796dSTrond Myklebust FMODE_WRITE, hdr->minorversion); 16741da177e4SLinus Torvalds 167513c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1676b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1677e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 167834558513SBenny Halevy *p = cpu_to_be32(args->count); 16791da177e4SLinus Torvalds 16801da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 16811da177e4SLinus Torvalds } 16821da177e4SLinus Torvalds 1683cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16841da177e4SLinus Torvalds { 1685ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1686ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 16871da177e4SLinus Torvalds } 16889b7b9fccSAndy Adamson 16895a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16905a5ea0d4SBryan Schumaker { 1691ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 16926fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16935a5ea0d4SBryan Schumaker } 16945a5ea0d4SBryan Schumaker 169599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16969b7b9fccSAndy Adamson /* NFSv4.1 operations */ 16977c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 16987c44f1aeSWeston Andros Adamson struct nfs4_session *session, 16997c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 17007c44f1aeSWeston Andros Adamson { 17017c44f1aeSWeston Andros Adamson __be32 *p; 17027c44f1aeSWeston Andros Adamson 17037c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17047c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 17057c44f1aeSWeston Andros Adamson encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17067c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 17077c44f1aeSWeston Andros Adamson *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH); 17087c44f1aeSWeston Andros Adamson *p = 0; /* use_conn_in_rdma_mode = False */ 17097c44f1aeSWeston Andros Adamson } 17107c44f1aeSWeston Andros Adamson 171199fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 171299fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 171399fe60d0SBenny Halevy struct compound_hdr *hdr) 171499fe60d0SBenny Halevy { 171599fe60d0SBenny Halevy __be32 *p; 1716db8ac8baSWeston Andros Adamson char impl_name[NFS4_OPAQUE_LIMIT]; 1717db8ac8baSWeston Andros Adamson int len = 0; 171899fe60d0SBenny Halevy 171970019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1720cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 172199fe60d0SBenny Halevy 172299fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 172399fe60d0SBenny Halevy 172413c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1725e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1726e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1727db8ac8baSWeston Andros Adamson 1728db8ac8baSWeston Andros Adamson if (send_implementation_id && 1729db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1730db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1731db8ac8baSWeston Andros Adamson <= NFS4_OPAQUE_LIMIT + 1) 1732db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1733db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1734db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1735db8ac8baSWeston Andros Adamson 1736db8ac8baSWeston Andros Adamson if (len > 0) { 1737db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1738db8ac8baSWeston Andros Adamson 1739db8ac8baSWeston Andros Adamson encode_string(xdr, 1740db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1741db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1742db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1743db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1744db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1745db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1746db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1747db8ac8baSWeston Andros Adamson } else 1748db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 174999fe60d0SBenny Halevy } 1750fc931582SAndy Adamson 1751fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1752fc931582SAndy Adamson struct nfs41_create_session_args *args, 1753fc931582SAndy Adamson struct compound_hdr *hdr) 1754fc931582SAndy Adamson { 1755fc931582SAndy Adamson __be32 *p; 1756fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1757fc931582SAndy Adamson uint32_t len; 1758fc931582SAndy Adamson struct nfs_client *clp = args->client; 1759f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 17608e0d46e1SMike Sager u32 max_resp_sz_cached; 17618e0d46e1SMike Sager 17628e0d46e1SMike Sager /* 17638e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 17648e0d46e1SMike Sager * 2 is the verifier. 17658e0d46e1SMike Sager */ 17668e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 17678e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1768fc931582SAndy Adamson 1769fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1770fc931582SAndy Adamson clp->cl_ipaddr); 177142edd698SBenny Halevy 1772475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 1773475d4ba0STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12); 1774114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1775e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1776e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1777fc931582SAndy Adamson 1778fc931582SAndy Adamson /* Fore Channel */ 1779c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1780e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1781e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 17828e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1783e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1784e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1785e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1786fc931582SAndy Adamson 1787fc931582SAndy Adamson /* Back Channel */ 1788c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1789e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1790e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1791e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1792e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1793e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1794e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1795fc931582SAndy Adamson 1796e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1797e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1798e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1799fc931582SAndy Adamson 1800fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1801f092075dSChuck Lever *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */ 1802811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1803e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1804e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 180534558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1806fc931582SAndy Adamson } 18070f3e66c6SAndy Adamson 18080f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18090f3e66c6SAndy Adamson struct nfs4_session *session, 18100f3e66c6SAndy Adamson struct compound_hdr *hdr) 18110f3e66c6SAndy Adamson { 1812475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1813475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18140f3e66c6SAndy Adamson } 181518019753SRicardo Labiaga 181666245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 181766245539STrond Myklebust uint64_t clientid, 181866245539STrond Myklebust struct compound_hdr *hdr) 181966245539STrond Myklebust { 182066245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 182166245539STrond Myklebust encode_uint64(xdr, clientid); 182266245539STrond Myklebust } 182366245539STrond Myklebust 182418019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 182518019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 182618019753SRicardo Labiaga struct compound_hdr *hdr) 182718019753SRicardo Labiaga { 1828475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1829475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 183018019753SRicardo Labiaga } 183199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 183299fe60d0SBenny Halevy 18339b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18349b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18359b7b9fccSAndy Adamson struct compound_hdr *hdr) 18369b7b9fccSAndy Adamson { 18379b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18389b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1839fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1840fc01cea9SAndy Adamson struct nfs4_slot *slot; 1841fc01cea9SAndy Adamson __be32 *p; 18429b7b9fccSAndy Adamson 18439b7b9fccSAndy Adamson if (!session) 18449b7b9fccSAndy Adamson return; 18459b7b9fccSAndy Adamson 1846fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1847fc01cea9SAndy Adamson 1848fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1849fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1850fc01cea9SAndy Adamson 1851475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1852fc01cea9SAndy Adamson 1853fc01cea9SAndy Adamson /* 1854fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1855fc01cea9SAndy Adamson */ 1856fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1857fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1858fc01cea9SAndy Adamson __func__, 1859fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1860fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1861fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1862fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1863fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1864fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1865475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 186693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1868e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1869e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 187034558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 18719b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 18729b7b9fccSAndy Adamson } 18739b7b9fccSAndy Adamson 1874b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1875b1f69b75SAndy Adamson static void 18767f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 18777f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 18787f11d8d3SAndy Adamson struct compound_hdr *hdr) 18797f11d8d3SAndy Adamson { 18807f11d8d3SAndy Adamson __be32 *p; 18817f11d8d3SAndy Adamson nfs4_verifier dummy = { 18827f11d8d3SAndy Adamson .data = "dummmmmy", 18837f11d8d3SAndy Adamson }; 18847f11d8d3SAndy Adamson 1885475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr); 1886475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 18877f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 18887f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 18897f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 18907f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 18917f11d8d3SAndy Adamson } 18927f11d8d3SAndy Adamson 18937f11d8d3SAndy Adamson static void 1894b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1895b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1896b1f69b75SAndy Adamson struct compound_hdr *hdr) 1897b1f69b75SAndy Adamson { 1898b1f69b75SAndy Adamson __be32 *p; 1899b1f69b75SAndy Adamson 1900475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 1901475d4ba0STrond Myklebust p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE); 1902b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1903b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1904b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1905b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1906b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1907b1f69b75SAndy Adamson } 1908b1f69b75SAndy Adamson 1909b1f69b75SAndy Adamson static void 1910b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1911b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1912b1f69b75SAndy Adamson struct compound_hdr *hdr) 1913b1f69b75SAndy Adamson { 1914b1f69b75SAndy Adamson __be32 *p; 1915b1f69b75SAndy Adamson 1916475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1917475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1918b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1919b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1920b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1921b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1922b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1923b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1924ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1925475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1926b1f69b75SAndy Adamson 1927b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1928b1f69b75SAndy Adamson __func__, 1929b1f69b75SAndy Adamson args->type, 1930b1f69b75SAndy Adamson args->range.iomode, 1931b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1932b1f69b75SAndy Adamson (unsigned long)args->range.length, 1933b1f69b75SAndy Adamson args->maxcount); 1934b1f69b75SAndy Adamson } 1935863a3c6cSAndy Adamson 1936863a3c6cSAndy Adamson static int 1937863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1938ac7db726SBenny Halevy struct inode *inode, 1939863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1940863a3c6cSAndy Adamson struct compound_hdr *hdr) 1941863a3c6cSAndy Adamson { 1942863a3c6cSAndy Adamson __be32 *p; 1943863a3c6cSAndy Adamson 1944863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1945863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1946863a3c6cSAndy Adamson 1947475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 1948475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1949863a3c6cSAndy Adamson /* Only whole file layouts */ 1950863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19513557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1952ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 1953ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1954ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1955863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1956863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1957863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1958863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1959ac7db726SBenny Halevy 1960ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 1961ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 1962ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 1963475d4ba0STrond Myklebust else 1964475d4ba0STrond Myklebust encode_uint32(xdr, 0); /* no layout-type payload */ 1965863a3c6cSAndy Adamson 1966863a3c6cSAndy Adamson return 0; 1967863a3c6cSAndy Adamson } 1968cbe82603SBenny Halevy 1969cbe82603SBenny Halevy static void 1970cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 1971cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 1972cbe82603SBenny Halevy struct compound_hdr *hdr) 1973cbe82603SBenny Halevy { 1974cbe82603SBenny Halevy __be32 *p; 1975cbe82603SBenny Halevy 1976475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 1977475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 1978cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 1979cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 1980cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 1981cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 1982ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1983cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 1984cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 1985cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 1986ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1987cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 198804a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 198904a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 199004a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 1991475d4ba0STrond Myklebust } else 1992475d4ba0STrond Myklebust encode_uint32(xdr, 0); 1993cbe82603SBenny Halevy } 1994fca78d6dSBryan Schumaker 1995fca78d6dSBryan Schumaker static int 1996fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 1997fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 1998fca78d6dSBryan Schumaker struct compound_hdr *hdr) 1999fca78d6dSBryan Schumaker { 2000475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 2001475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2002fca78d6dSBryan Schumaker return 0; 2003fca78d6dSBryan Schumaker } 20047d974794SBryan Schumaker 20057d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20067d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20077d974794SBryan Schumaker struct compound_hdr *hdr) 20087d974794SBryan Schumaker { 2009475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2010475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2011ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20127d974794SBryan Schumaker } 20139aeda35fSBryan Schumaker 20149aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20159aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20169aeda35fSBryan Schumaker struct compound_hdr *hdr) 20179aeda35fSBryan Schumaker { 2018ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 2019ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20209aeda35fSBryan Schumaker } 2021b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2022b1f69b75SAndy Adamson 20231da177e4SLinus Torvalds /* 20241da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20251da177e4SLinus Torvalds */ 20261da177e4SLinus Torvalds 202766cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 202866cc0429SBenny Halevy { 202966cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 203066cc0429SBenny Halevy if (args->sa_session) 2031a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 203266cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 203366cc0429SBenny Halevy return 0; 203466cc0429SBenny Halevy } 203566cc0429SBenny Halevy 20361da177e4SLinus Torvalds /* 20371da177e4SLinus Torvalds * Encode an ACCESS request 20381da177e4SLinus Torvalds */ 20399f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20409f06c719SChuck Lever const struct nfs4_accessargs *args) 20411da177e4SLinus Torvalds { 20421da177e4SLinus Torvalds struct compound_hdr hdr = { 204366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20441da177e4SLinus Torvalds }; 20451da177e4SLinus Torvalds 20469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20499f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 20509f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2051d017931cSAndy Adamson encode_nops(&hdr); 20521da177e4SLinus Torvalds } 20531da177e4SLinus Torvalds 20541da177e4SLinus Torvalds /* 20551da177e4SLinus Torvalds * Encode LOOKUP request 20561da177e4SLinus Torvalds */ 20579f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 20589f06c719SChuck Lever const struct nfs4_lookup_arg *args) 20591da177e4SLinus Torvalds { 20601da177e4SLinus Torvalds struct compound_hdr hdr = { 206166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20621da177e4SLinus Torvalds }; 20631da177e4SLinus Torvalds 20649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20669f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 20679f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 20689f06c719SChuck Lever encode_getfh(xdr, &hdr); 20699f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2070d017931cSAndy Adamson encode_nops(&hdr); 20711da177e4SLinus Torvalds } 20721da177e4SLinus Torvalds 20731da177e4SLinus Torvalds /* 20741da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 20751da177e4SLinus Torvalds */ 20769f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 20779f06c719SChuck Lever struct xdr_stream *xdr, 20789f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 20791da177e4SLinus Torvalds { 20801da177e4SLinus Torvalds struct compound_hdr hdr = { 208166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20821da177e4SLinus Torvalds }; 20831da177e4SLinus Torvalds 20849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20859f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20869f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 20879f06c719SChuck Lever encode_getfh(xdr, &hdr); 20889f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2089d017931cSAndy Adamson encode_nops(&hdr); 20901da177e4SLinus Torvalds } 20911da177e4SLinus Torvalds 20921da177e4SLinus Torvalds /* 20931da177e4SLinus Torvalds * Encode REMOVE request 20941da177e4SLinus Torvalds */ 20959f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 20969f06c719SChuck Lever const struct nfs_removeargs *args) 20971da177e4SLinus Torvalds { 20981da177e4SLinus Torvalds struct compound_hdr hdr = { 209966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21001da177e4SLinus Torvalds }; 21011da177e4SLinus Torvalds 21029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21049f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21059f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2106d017931cSAndy Adamson encode_nops(&hdr); 21071da177e4SLinus Torvalds } 21081da177e4SLinus Torvalds 21091da177e4SLinus Torvalds /* 21101da177e4SLinus Torvalds * Encode RENAME request 21111da177e4SLinus Torvalds */ 21129f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21139f06c719SChuck Lever const struct nfs_renameargs *args) 21141da177e4SLinus Torvalds { 21151da177e4SLinus Torvalds struct compound_hdr hdr = { 211666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21171da177e4SLinus Torvalds }; 21181da177e4SLinus Torvalds 21199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21209f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21219f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21229f06c719SChuck Lever encode_savefh(xdr, &hdr); 21239f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21249f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2125d017931cSAndy Adamson encode_nops(&hdr); 21261da177e4SLinus Torvalds } 21271da177e4SLinus Torvalds 21281da177e4SLinus Torvalds /* 21291da177e4SLinus Torvalds * Encode LINK request 21301da177e4SLinus Torvalds */ 21319f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21329f06c719SChuck Lever const struct nfs4_link_arg *args) 21331da177e4SLinus Torvalds { 21341da177e4SLinus Torvalds struct compound_hdr hdr = { 213566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21361da177e4SLinus Torvalds }; 21371da177e4SLinus Torvalds 21389f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21399f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21409f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21419f06c719SChuck Lever encode_savefh(xdr, &hdr); 21429f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21439f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21449f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21459f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2146d017931cSAndy Adamson encode_nops(&hdr); 21471da177e4SLinus Torvalds } 21481da177e4SLinus Torvalds 21491da177e4SLinus Torvalds /* 21501da177e4SLinus Torvalds * Encode CREATE request 21511da177e4SLinus Torvalds */ 21529f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 21539f06c719SChuck Lever const struct nfs4_create_arg *args) 21541da177e4SLinus Torvalds { 21551da177e4SLinus Torvalds struct compound_hdr hdr = { 215666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21571da177e4SLinus Torvalds }; 21581da177e4SLinus Torvalds 21599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21619f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21629f06c719SChuck Lever encode_create(xdr, args, &hdr); 21639f06c719SChuck Lever encode_getfh(xdr, &hdr); 21649f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2165d017931cSAndy Adamson encode_nops(&hdr); 21661da177e4SLinus Torvalds } 21671da177e4SLinus Torvalds 21681da177e4SLinus Torvalds /* 21691da177e4SLinus Torvalds * Encode SYMLINK request 21701da177e4SLinus Torvalds */ 21719f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21729f06c719SChuck Lever const struct nfs4_create_arg *args) 21731da177e4SLinus Torvalds { 21749f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 21751da177e4SLinus Torvalds } 21761da177e4SLinus Torvalds 21771da177e4SLinus Torvalds /* 21781da177e4SLinus Torvalds * Encode GETATTR request 21791da177e4SLinus Torvalds */ 21809f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 21819f06c719SChuck Lever const struct nfs4_getattr_arg *args) 21821da177e4SLinus Torvalds { 21831da177e4SLinus Torvalds struct compound_hdr hdr = { 218466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21851da177e4SLinus Torvalds }; 21861da177e4SLinus Torvalds 21879f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21889f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21899f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21909f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2191d017931cSAndy Adamson encode_nops(&hdr); 21921da177e4SLinus Torvalds } 21931da177e4SLinus Torvalds 21941da177e4SLinus Torvalds /* 21951da177e4SLinus Torvalds * Encode a CLOSE request 21961da177e4SLinus Torvalds */ 21979f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 21989f06c719SChuck Lever struct nfs_closeargs *args) 21991da177e4SLinus Torvalds { 22001da177e4SLinus Torvalds struct compound_hdr hdr = { 220166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22021da177e4SLinus Torvalds }; 22031da177e4SLinus Torvalds 22049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22059f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22069f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22079f06c719SChuck Lever encode_close(xdr, args, &hdr); 22089f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2209d017931cSAndy Adamson encode_nops(&hdr); 22101da177e4SLinus Torvalds } 22111da177e4SLinus Torvalds 22121da177e4SLinus Torvalds /* 22131da177e4SLinus Torvalds * Encode an OPEN request 22141da177e4SLinus Torvalds */ 22159f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22169f06c719SChuck Lever struct nfs_openargs *args) 22171da177e4SLinus Torvalds { 22181da177e4SLinus Torvalds struct compound_hdr hdr = { 221966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22201da177e4SLinus Torvalds }; 22211da177e4SLinus Torvalds 22229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22239f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22249f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22259f06c719SChuck Lever encode_open(xdr, args, &hdr); 22269f06c719SChuck Lever encode_getfh(xdr, &hdr); 2227ae2bb032SWeston Andros Adamson if (args->access) 22286168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22291549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2230d017931cSAndy Adamson encode_nops(&hdr); 22311da177e4SLinus Torvalds } 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds /* 22341da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22351da177e4SLinus Torvalds */ 22369f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22379f06c719SChuck Lever struct xdr_stream *xdr, 22389f06c719SChuck Lever struct nfs_open_confirmargs *args) 22391da177e4SLinus Torvalds { 22401da177e4SLinus Torvalds struct compound_hdr hdr = { 2241d017931cSAndy Adamson .nops = 0, 22421da177e4SLinus Torvalds }; 22431da177e4SLinus Torvalds 22449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22459f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22469f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2247d017931cSAndy Adamson encode_nops(&hdr); 22481da177e4SLinus Torvalds } 22491da177e4SLinus Torvalds 22501da177e4SLinus Torvalds /* 22511da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 22521da177e4SLinus Torvalds */ 22539f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 22549f06c719SChuck Lever struct xdr_stream *xdr, 22559f06c719SChuck Lever struct nfs_openargs *args) 22561da177e4SLinus Torvalds { 22571da177e4SLinus Torvalds struct compound_hdr hdr = { 225866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22591da177e4SLinus Torvalds }; 22601da177e4SLinus Torvalds 22619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22629f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22639f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22649f06c719SChuck Lever encode_open(xdr, args, &hdr); 2265ae2bb032SWeston Andros Adamson if (args->access) 22666168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22679f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2268d017931cSAndy Adamson encode_nops(&hdr); 22691da177e4SLinus Torvalds } 22701da177e4SLinus Torvalds 22711da177e4SLinus Torvalds /* 22721da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 22731da177e4SLinus Torvalds */ 22749f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 22759f06c719SChuck Lever struct xdr_stream *xdr, 22769f06c719SChuck Lever struct nfs_closeargs *args) 22771da177e4SLinus Torvalds { 22781da177e4SLinus Torvalds struct compound_hdr hdr = { 227966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22801da177e4SLinus Torvalds }; 22811da177e4SLinus Torvalds 22829f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22839f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22849f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22859f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 22869f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2287d017931cSAndy Adamson encode_nops(&hdr); 22881da177e4SLinus Torvalds } 22891da177e4SLinus Torvalds 22901da177e4SLinus Torvalds /* 22911da177e4SLinus Torvalds * Encode a LOCK request 22921da177e4SLinus Torvalds */ 22939f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 22949f06c719SChuck Lever struct nfs_lock_args *args) 22951da177e4SLinus Torvalds { 22961da177e4SLinus Torvalds struct compound_hdr hdr = { 229766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22981da177e4SLinus Torvalds }; 22991da177e4SLinus Torvalds 23009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23039f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2304d017931cSAndy Adamson encode_nops(&hdr); 23051da177e4SLinus Torvalds } 23061da177e4SLinus Torvalds 23071da177e4SLinus Torvalds /* 23081da177e4SLinus Torvalds * Encode a LOCKT request 23091da177e4SLinus Torvalds */ 23109f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23119f06c719SChuck Lever struct nfs_lockt_args *args) 23121da177e4SLinus Torvalds { 23131da177e4SLinus Torvalds struct compound_hdr hdr = { 231466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23151da177e4SLinus Torvalds }; 23161da177e4SLinus Torvalds 23179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23189f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23199f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23209f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2321d017931cSAndy Adamson encode_nops(&hdr); 23221da177e4SLinus Torvalds } 23231da177e4SLinus Torvalds 23241da177e4SLinus Torvalds /* 23251da177e4SLinus Torvalds * Encode a LOCKU request 23261da177e4SLinus Torvalds */ 23279f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23289f06c719SChuck Lever struct nfs_locku_args *args) 23291da177e4SLinus Torvalds { 23301da177e4SLinus Torvalds struct compound_hdr hdr = { 233166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23321da177e4SLinus Torvalds }; 23331da177e4SLinus Torvalds 23349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23359f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23369f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23379f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2338d017931cSAndy Adamson encode_nops(&hdr); 23391da177e4SLinus Torvalds } 23401da177e4SLinus Torvalds 23419f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23429f06c719SChuck Lever struct xdr_stream *xdr, 23439f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2344d3c7b7ccSTrond Myklebust { 2345d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2346d3c7b7ccSTrond Myklebust .minorversion = 0, 2347d3c7b7ccSTrond Myklebust }; 2348d3c7b7ccSTrond Myklebust 23499f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23509f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2351d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2352d3c7b7ccSTrond Myklebust } 2353d3c7b7ccSTrond Myklebust 23541da177e4SLinus Torvalds /* 23551da177e4SLinus Torvalds * Encode a READLINK request 23561da177e4SLinus Torvalds */ 23579f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 23589f06c719SChuck Lever const struct nfs4_readlink *args) 23591da177e4SLinus Torvalds { 23601da177e4SLinus Torvalds struct compound_hdr hdr = { 236166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23621da177e4SLinus Torvalds }; 23631da177e4SLinus Torvalds 23649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23669f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23679f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2368e3a535e1STrond Myklebust 236928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2370e3a535e1STrond Myklebust args->pgbase, args->pglen); 2371d017931cSAndy Adamson encode_nops(&hdr); 23721da177e4SLinus Torvalds } 23731da177e4SLinus Torvalds 23741da177e4SLinus Torvalds /* 23751da177e4SLinus Torvalds * Encode a READDIR request 23761da177e4SLinus Torvalds */ 23779f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 23789f06c719SChuck Lever const struct nfs4_readdir_arg *args) 23791da177e4SLinus Torvalds { 23801da177e4SLinus Torvalds struct compound_hdr hdr = { 238166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23821da177e4SLinus Torvalds }; 23831da177e4SLinus Torvalds 23849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23859f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23869f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23879f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2388d6ac02dfSTrond Myklebust 238928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2390d6ac02dfSTrond Myklebust args->pgbase, args->count); 2391d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 239228f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2393d6ac02dfSTrond Myklebust args->pgbase, args->count); 2394d017931cSAndy Adamson encode_nops(&hdr); 23951da177e4SLinus Torvalds } 23961da177e4SLinus Torvalds 23971da177e4SLinus Torvalds /* 23981da177e4SLinus Torvalds * Encode a READ request 23991da177e4SLinus Torvalds */ 24009f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24019f06c719SChuck Lever struct nfs_readargs *args) 24021da177e4SLinus Torvalds { 24031da177e4SLinus Torvalds struct compound_hdr hdr = { 240466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24051da177e4SLinus Torvalds }; 24061da177e4SLinus Torvalds 24079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24099f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24109f06c719SChuck Lever encode_read(xdr, args, &hdr); 24111da177e4SLinus Torvalds 241228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24131da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24144f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2415d017931cSAndy Adamson encode_nops(&hdr); 24161da177e4SLinus Torvalds } 24171da177e4SLinus Torvalds 24181da177e4SLinus Torvalds /* 24191da177e4SLinus Torvalds * Encode an SETATTR request 24201da177e4SLinus Torvalds */ 24219f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24229f06c719SChuck Lever struct nfs_setattrargs *args) 24231da177e4SLinus Torvalds { 24241da177e4SLinus Torvalds struct compound_hdr hdr = { 242566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24261da177e4SLinus Torvalds }; 24271da177e4SLinus Torvalds 24289f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24299f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24309f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24319f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24329f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2433d017931cSAndy Adamson encode_nops(&hdr); 24341da177e4SLinus Torvalds } 24351da177e4SLinus Torvalds 24361da177e4SLinus Torvalds /* 2437029d105eSJ. Bruce Fields * Encode a GETACL request 2438029d105eSJ. Bruce Fields */ 24399f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2440029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2441029d105eSJ. Bruce Fields { 2442029d105eSJ. Bruce Fields struct compound_hdr hdr = { 244366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2444029d105eSJ. Bruce Fields }; 244528f56694SBenny Halevy uint32_t replen; 2446029d105eSJ. Bruce Fields 24479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24489f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24499f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2450bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 24519f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2452cf8cdbe5SAndy Adamson 245328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2454029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2455bf118a34SAndy Adamson 2456d017931cSAndy Adamson encode_nops(&hdr); 2457029d105eSJ. Bruce Fields } 2458029d105eSJ. Bruce Fields 2459029d105eSJ. Bruce Fields /* 24601da177e4SLinus Torvalds * Encode a WRITE request 24611da177e4SLinus Torvalds */ 24629f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 24639f06c719SChuck Lever struct nfs_writeargs *args) 24641da177e4SLinus Torvalds { 24651da177e4SLinus Torvalds struct compound_hdr hdr = { 246666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24671da177e4SLinus Torvalds }; 24681da177e4SLinus Torvalds 24699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24709f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24719f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24729f06c719SChuck Lever encode_write(xdr, args, &hdr); 24734f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 24747ffd1064SFred Isaman if (args->bitmask) 24759f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2476d017931cSAndy Adamson encode_nops(&hdr); 24771da177e4SLinus Torvalds } 24781da177e4SLinus Torvalds 24791da177e4SLinus Torvalds /* 24801da177e4SLinus Torvalds * a COMMIT request 24811da177e4SLinus Torvalds */ 24829f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 24830b7c0153SFred Isaman struct nfs_commitargs *args) 24841da177e4SLinus Torvalds { 24851da177e4SLinus Torvalds struct compound_hdr hdr = { 248666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24871da177e4SLinus Torvalds }; 24881da177e4SLinus Torvalds 24899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24919f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24929f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2493d017931cSAndy Adamson encode_nops(&hdr); 24941da177e4SLinus Torvalds } 24951da177e4SLinus Torvalds 24961da177e4SLinus Torvalds /* 24971da177e4SLinus Torvalds * FSINFO request 24981da177e4SLinus Torvalds */ 24999f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 25009f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25011da177e4SLinus Torvalds { 25021da177e4SLinus Torvalds struct compound_hdr hdr = { 250366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25041da177e4SLinus Torvalds }; 25051da177e4SLinus Torvalds 25069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25089f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25099f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2510d017931cSAndy Adamson encode_nops(&hdr); 25111da177e4SLinus Torvalds } 25121da177e4SLinus Torvalds 25131da177e4SLinus Torvalds /* 25141da177e4SLinus Torvalds * a PATHCONF request 25151da177e4SLinus Torvalds */ 25169f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25179f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25181da177e4SLinus Torvalds { 25191da177e4SLinus Torvalds struct compound_hdr hdr = { 252066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25211da177e4SLinus Torvalds }; 25221da177e4SLinus Torvalds 25239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25249f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25259f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25269f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2527d017931cSAndy Adamson &hdr); 2528d017931cSAndy Adamson encode_nops(&hdr); 25291da177e4SLinus Torvalds } 25301da177e4SLinus Torvalds 25311da177e4SLinus Torvalds /* 25321da177e4SLinus Torvalds * a STATFS request 25331da177e4SLinus Torvalds */ 25349f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25359f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25361da177e4SLinus Torvalds { 25371da177e4SLinus Torvalds struct compound_hdr hdr = { 253866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25391da177e4SLinus Torvalds }; 25401da177e4SLinus Torvalds 25419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25449f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2545d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2546d017931cSAndy Adamson encode_nops(&hdr); 25471da177e4SLinus Torvalds } 25481da177e4SLinus Torvalds 25491da177e4SLinus Torvalds /* 25501da177e4SLinus Torvalds * GETATTR_BITMAP request 25511da177e4SLinus Torvalds */ 25529f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 25539f06c719SChuck Lever struct xdr_stream *xdr, 255443652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 25551da177e4SLinus Torvalds { 25561da177e4SLinus Torvalds struct compound_hdr hdr = { 255766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25581da177e4SLinus Torvalds }; 25591da177e4SLinus Torvalds 25609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25619f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25629f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 25639f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2564264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 25651da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 25661da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2567d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2568d017931cSAndy Adamson encode_nops(&hdr); 25691da177e4SLinus Torvalds } 25701da177e4SLinus Torvalds 25711da177e4SLinus Torvalds /* 25721da177e4SLinus Torvalds * a RENEW request 25731da177e4SLinus Torvalds */ 25749f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 25759f06c719SChuck Lever struct nfs_client *clp) 25761da177e4SLinus Torvalds { 25771da177e4SLinus Torvalds struct compound_hdr hdr = { 2578d017931cSAndy Adamson .nops = 0, 25791da177e4SLinus Torvalds }; 25801da177e4SLinus Torvalds 25819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2582bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2583d017931cSAndy Adamson encode_nops(&hdr); 25841da177e4SLinus Torvalds } 25851da177e4SLinus Torvalds 25861da177e4SLinus Torvalds /* 25871da177e4SLinus Torvalds * a SETCLIENTID request 25881da177e4SLinus Torvalds */ 25899f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 25909f06c719SChuck Lever struct xdr_stream *xdr, 25919f06c719SChuck Lever struct nfs4_setclientid *sc) 25921da177e4SLinus Torvalds { 25931da177e4SLinus Torvalds struct compound_hdr hdr = { 2594d017931cSAndy Adamson .nops = 0, 25951da177e4SLinus Torvalds }; 25961da177e4SLinus Torvalds 25979f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25989f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2599d017931cSAndy Adamson encode_nops(&hdr); 26001da177e4SLinus Torvalds } 26011da177e4SLinus Torvalds 26021da177e4SLinus Torvalds /* 26031da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 26041da177e4SLinus Torvalds */ 26059f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26069f06c719SChuck Lever struct xdr_stream *xdr, 26079f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26081da177e4SLinus Torvalds { 26091da177e4SLinus Torvalds struct compound_hdr hdr = { 2610d017931cSAndy Adamson .nops = 0, 26111da177e4SLinus Torvalds }; 2612dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 26131da177e4SLinus Torvalds 26149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26159f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 26169f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 26179f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2618d017931cSAndy Adamson encode_nops(&hdr); 26191da177e4SLinus Torvalds } 26201da177e4SLinus Torvalds 26211da177e4SLinus Torvalds /* 26221da177e4SLinus Torvalds * DELEGRETURN request 26231da177e4SLinus Torvalds */ 26249f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26259f06c719SChuck Lever struct xdr_stream *xdr, 26269f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26271da177e4SLinus Torvalds { 26281da177e4SLinus Torvalds struct compound_hdr hdr = { 262966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26301da177e4SLinus Torvalds }; 26311da177e4SLinus Torvalds 26329f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26339f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26349f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26359f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2636e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2637d017931cSAndy Adamson encode_nops(&hdr); 26381da177e4SLinus Torvalds } 26391da177e4SLinus Torvalds 26401da177e4SLinus Torvalds /* 2641683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2642683b57b4STrond Myklebust */ 26439f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26449f06c719SChuck Lever struct xdr_stream *xdr, 26459f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2646683b57b4STrond Myklebust { 2647683b57b4STrond Myklebust struct compound_hdr hdr = { 264866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2649683b57b4STrond Myklebust }; 265028f56694SBenny Halevy uint32_t replen; 2651683b57b4STrond Myklebust 26529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26549f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 26559f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 265628f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 26579f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2658cf8cdbe5SAndy Adamson 265928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2660683b57b4STrond Myklebust 0, PAGE_SIZE); 2661d017931cSAndy Adamson encode_nops(&hdr); 2662683b57b4STrond Myklebust } 2663683b57b4STrond Myklebust 26645a5ea0d4SBryan Schumaker /* 26655a5ea0d4SBryan Schumaker * Encode SECINFO request 26665a5ea0d4SBryan Schumaker */ 26675a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 26685a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 26695a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 26705a5ea0d4SBryan Schumaker { 26715a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 26725a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26735a5ea0d4SBryan Schumaker }; 26745a5ea0d4SBryan Schumaker 26755a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 26765a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 26775a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 26785a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 26795a5ea0d4SBryan Schumaker encode_nops(&hdr); 26805a5ea0d4SBryan Schumaker } 26815a5ea0d4SBryan Schumaker 268299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 268399fe60d0SBenny Halevy /* 26847c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 26857c44f1aeSWeston Andros Adamson */ 26867c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 26877c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 26887c44f1aeSWeston Andros Adamson struct nfs_client *clp) 26897c44f1aeSWeston Andros Adamson { 26907c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 26917c44f1aeSWeston Andros Adamson .minorversion = clp->cl_mvops->minor_version, 26927c44f1aeSWeston Andros Adamson }; 26937c44f1aeSWeston Andros Adamson 26947c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 26957c44f1aeSWeston Andros Adamson encode_bind_conn_to_session(xdr, clp->cl_session, &hdr); 26967c44f1aeSWeston Andros Adamson encode_nops(&hdr); 26977c44f1aeSWeston Andros Adamson } 26987c44f1aeSWeston Andros Adamson 26997c44f1aeSWeston Andros Adamson /* 270099fe60d0SBenny Halevy * EXCHANGE_ID request 270199fe60d0SBenny Halevy */ 27029f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27039f06c719SChuck Lever struct xdr_stream *xdr, 270499fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 270599fe60d0SBenny Halevy { 270699fe60d0SBenny Halevy struct compound_hdr hdr = { 2707a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 270899fe60d0SBenny Halevy }; 270999fe60d0SBenny Halevy 27109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27119f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 271299fe60d0SBenny Halevy encode_nops(&hdr); 271399fe60d0SBenny Halevy } 27142050f0ccSAndy Adamson 27152050f0ccSAndy Adamson /* 2716fc931582SAndy Adamson * a CREATE_SESSION request 2717fc931582SAndy Adamson */ 27189f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27199f06c719SChuck Lever struct xdr_stream *xdr, 2720fc931582SAndy Adamson struct nfs41_create_session_args *args) 2721fc931582SAndy Adamson { 2722fc931582SAndy Adamson struct compound_hdr hdr = { 2723a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2724fc931582SAndy Adamson }; 2725fc931582SAndy Adamson 27269f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27279f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2728fc931582SAndy Adamson encode_nops(&hdr); 2729fc931582SAndy Adamson } 2730fc931582SAndy Adamson 2731fc931582SAndy Adamson /* 27320f3e66c6SAndy Adamson * a DESTROY_SESSION request 27330f3e66c6SAndy Adamson */ 27349f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 27359f06c719SChuck Lever struct xdr_stream *xdr, 27360f3e66c6SAndy Adamson struct nfs4_session *session) 27370f3e66c6SAndy Adamson { 27380f3e66c6SAndy Adamson struct compound_hdr hdr = { 2739a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 27400f3e66c6SAndy Adamson }; 27410f3e66c6SAndy Adamson 27429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27439f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 27440f3e66c6SAndy Adamson encode_nops(&hdr); 27450f3e66c6SAndy Adamson } 27460f3e66c6SAndy Adamson 27470f3e66c6SAndy Adamson /* 274866245539STrond Myklebust * a DESTROY_CLIENTID request 274966245539STrond Myklebust */ 275066245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 275166245539STrond Myklebust struct xdr_stream *xdr, 275266245539STrond Myklebust struct nfs_client *clp) 275366245539STrond Myklebust { 275466245539STrond Myklebust struct compound_hdr hdr = { 275566245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 275666245539STrond Myklebust }; 275766245539STrond Myklebust 275866245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 275966245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 276066245539STrond Myklebust encode_nops(&hdr); 276166245539STrond Myklebust } 276266245539STrond Myklebust 276366245539STrond Myklebust /* 2764fc01cea9SAndy Adamson * a SEQUENCE request 2765fc01cea9SAndy Adamson */ 27669f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2767fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2768fc01cea9SAndy Adamson { 2769fc01cea9SAndy Adamson struct compound_hdr hdr = { 2770fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2771fc01cea9SAndy Adamson }; 2772fc01cea9SAndy Adamson 27739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27749f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2775fc01cea9SAndy Adamson encode_nops(&hdr); 2776fc01cea9SAndy Adamson } 2777fc01cea9SAndy Adamson 2778fc01cea9SAndy Adamson /* 27792050f0ccSAndy Adamson * a GET_LEASE_TIME request 27802050f0ccSAndy Adamson */ 27819f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 27829f06c719SChuck Lever struct xdr_stream *xdr, 27832050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 27842050f0ccSAndy Adamson { 27852050f0ccSAndy Adamson struct compound_hdr hdr = { 27862050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 27872050f0ccSAndy Adamson }; 2788dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27892050f0ccSAndy Adamson 27909f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27919f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 27929f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27939f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 27942050f0ccSAndy Adamson encode_nops(&hdr); 27952050f0ccSAndy Adamson } 279618019753SRicardo Labiaga 279718019753SRicardo Labiaga /* 279818019753SRicardo Labiaga * a RECLAIM_COMPLETE request 279918019753SRicardo Labiaga */ 28009f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28019f06c719SChuck Lever struct xdr_stream *xdr, 280218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 280318019753SRicardo Labiaga { 280418019753SRicardo Labiaga struct compound_hdr hdr = { 280518019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 280618019753SRicardo Labiaga }; 280718019753SRicardo Labiaga 28089f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28099f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28109f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 281118019753SRicardo Labiaga encode_nops(&hdr); 281218019753SRicardo Labiaga } 281318019753SRicardo Labiaga 2814b1f69b75SAndy Adamson /* 28157f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28167f11d8d3SAndy Adamson */ 28177f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28187f11d8d3SAndy Adamson struct xdr_stream *xdr, 28197f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 28207f11d8d3SAndy Adamson { 28217f11d8d3SAndy Adamson struct compound_hdr hdr = { 28227f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 28237f11d8d3SAndy Adamson }; 28247f11d8d3SAndy Adamson 28257f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 28267f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 28277f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 28287f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 28297f11d8d3SAndy Adamson encode_nops(&hdr); 28307f11d8d3SAndy Adamson } 28317f11d8d3SAndy Adamson 28327f11d8d3SAndy Adamson /* 2833b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2834b1f69b75SAndy Adamson */ 28359f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28369f06c719SChuck Lever struct xdr_stream *xdr, 2837b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2838b1f69b75SAndy Adamson { 2839b1f69b75SAndy Adamson struct compound_hdr hdr = { 2840b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2841b1f69b75SAndy Adamson }; 2842b1f69b75SAndy Adamson 28439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28449f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28459f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2846b1f69b75SAndy Adamson 2847b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2848b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2849b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2850b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2851b1f69b75SAndy Adamson args->pdev->pglen); 2852b1f69b75SAndy Adamson 2853b1f69b75SAndy Adamson encode_nops(&hdr); 2854b1f69b75SAndy Adamson } 2855b1f69b75SAndy Adamson 2856b1f69b75SAndy Adamson /* 2857b1f69b75SAndy Adamson * Encode LAYOUTGET request 2858b1f69b75SAndy Adamson */ 28599f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 28609f06c719SChuck Lever struct xdr_stream *xdr, 2861b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2862b1f69b75SAndy Adamson { 2863b1f69b75SAndy Adamson struct compound_hdr hdr = { 2864b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2865b1f69b75SAndy Adamson }; 2866b1f69b75SAndy Adamson 28679f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28689f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28699f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 28709f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 287135124a09SWeston Andros Adamson 287235124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 287335124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 287435124a09SWeston Andros Adamson 2875b1f69b75SAndy Adamson encode_nops(&hdr); 2876b1f69b75SAndy Adamson } 2877863a3c6cSAndy Adamson 2878863a3c6cSAndy Adamson /* 2879863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2880863a3c6cSAndy Adamson */ 2881cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2882863a3c6cSAndy Adamson struct xdr_stream *xdr, 2883863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2884863a3c6cSAndy Adamson { 2885ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2886ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2887863a3c6cSAndy Adamson struct compound_hdr hdr = { 2888863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2889863a3c6cSAndy Adamson }; 2890863a3c6cSAndy Adamson 2891863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2892863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2893863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2894ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2895863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2896863a3c6cSAndy Adamson encode_nops(&hdr); 2897cbe82603SBenny Halevy } 2898cbe82603SBenny Halevy 2899cbe82603SBenny Halevy /* 2900cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2901cbe82603SBenny Halevy */ 2902cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2903cbe82603SBenny Halevy struct xdr_stream *xdr, 2904cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2905cbe82603SBenny Halevy { 2906cbe82603SBenny Halevy struct compound_hdr hdr = { 2907cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2908cbe82603SBenny Halevy }; 2909cbe82603SBenny Halevy 2910cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2911cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2912cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2913cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2914cbe82603SBenny Halevy encode_nops(&hdr); 2915863a3c6cSAndy Adamson } 2916fca78d6dSBryan Schumaker 2917fca78d6dSBryan Schumaker /* 2918fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2919fca78d6dSBryan Schumaker */ 2920fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2921fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2922fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2923fca78d6dSBryan Schumaker { 2924fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2925fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2926fca78d6dSBryan Schumaker }; 2927fca78d6dSBryan Schumaker 2928fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2929fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2930fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2931fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2932fca78d6dSBryan Schumaker encode_nops(&hdr); 2933fca78d6dSBryan Schumaker return 0; 2934fca78d6dSBryan Schumaker } 29357d974794SBryan Schumaker 29367d974794SBryan Schumaker /* 29377d974794SBryan Schumaker * Encode TEST_STATEID request 29387d974794SBryan Schumaker */ 29397d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29407d974794SBryan Schumaker struct xdr_stream *xdr, 29417d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29427d974794SBryan Schumaker { 29437d974794SBryan Schumaker struct compound_hdr hdr = { 29447d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29457d974794SBryan Schumaker }; 29467d974794SBryan Schumaker 29477d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29487d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29497d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 29507d974794SBryan Schumaker encode_nops(&hdr); 29517d974794SBryan Schumaker } 29529aeda35fSBryan Schumaker 29539aeda35fSBryan Schumaker /* 29549aeda35fSBryan Schumaker * Encode FREE_STATEID request 29559aeda35fSBryan Schumaker */ 29569aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 29579aeda35fSBryan Schumaker struct xdr_stream *xdr, 29589aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 29599aeda35fSBryan Schumaker { 29609aeda35fSBryan Schumaker struct compound_hdr hdr = { 29619aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29629aeda35fSBryan Schumaker }; 29639aeda35fSBryan Schumaker 29649aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29659aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29669aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 29679aeda35fSBryan Schumaker encode_nops(&hdr); 29689aeda35fSBryan Schumaker } 296999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 297099fe60d0SBenny Halevy 2971686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2972686841b3SBenny Halevy { 2973686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2974686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2975686841b3SBenny Halevy func, xdr->end - xdr->p); 2976686841b3SBenny Halevy } 29771da177e4SLinus Torvalds 2978683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 29791da177e4SLinus Torvalds { 29808687b63aSAl Viro __be32 *p; 29811da177e4SLinus Torvalds 2982c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2983c0eae66eSBenny Halevy if (unlikely(!p)) 2984c0eae66eSBenny Halevy goto out_overflow; 2985cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2986c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2987c0eae66eSBenny Halevy if (unlikely(!p)) 2988c0eae66eSBenny Halevy goto out_overflow; 29891da177e4SLinus Torvalds *string = (char *)p; 29901da177e4SLinus Torvalds return 0; 2991c0eae66eSBenny Halevy out_overflow: 2992c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2993c0eae66eSBenny Halevy return -EIO; 29941da177e4SLinus Torvalds } 29951da177e4SLinus Torvalds 29961da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 29971da177e4SLinus Torvalds { 29988687b63aSAl Viro __be32 *p; 29991da177e4SLinus Torvalds 3000c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3001c0eae66eSBenny Halevy if (unlikely(!p)) 3002c0eae66eSBenny Halevy goto out_overflow; 30036f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3004cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30051da177e4SLinus Torvalds 3006c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3007c0eae66eSBenny Halevy if (unlikely(!p)) 3008c0eae66eSBenny Halevy goto out_overflow; 30091da177e4SLinus Torvalds hdr->tag = (char *)p; 30101da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3011cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3012aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3013aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30141da177e4SLinus Torvalds return 0; 3015c0eae66eSBenny Halevy out_overflow: 3016c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3017c0eae66eSBenny Halevy return -EIO; 30181da177e4SLinus Torvalds } 30191da177e4SLinus Torvalds 30201da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 30211da177e4SLinus Torvalds { 30228687b63aSAl Viro __be32 *p; 30231da177e4SLinus Torvalds uint32_t opnum; 30241da177e4SLinus Torvalds int32_t nfserr; 30251da177e4SLinus Torvalds 3026c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3027c0eae66eSBenny Halevy if (unlikely(!p)) 3028c0eae66eSBenny Halevy goto out_overflow; 30296f723f77SBenny Halevy opnum = be32_to_cpup(p++); 30301da177e4SLinus Torvalds if (opnum != expected) { 3031fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30321da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30331da177e4SLinus Torvalds opnum, expected); 30341da177e4SLinus Torvalds return -EIO; 30351da177e4SLinus Torvalds } 3036cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 30371da177e4SLinus Torvalds if (nfserr != NFS_OK) 3038856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 30391da177e4SLinus Torvalds return 0; 3040c0eae66eSBenny Halevy out_overflow: 3041c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3042c0eae66eSBenny Halevy return -EIO; 30431da177e4SLinus Torvalds } 30441da177e4SLinus Torvalds 30451da177e4SLinus Torvalds /* Dummy routine */ 3046adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 30471da177e4SLinus Torvalds { 30488687b63aSAl Viro __be32 *p; 3049683b57b4STrond Myklebust unsigned int strlen; 30501da177e4SLinus Torvalds char *str; 30511da177e4SLinus Torvalds 3052c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3053c0eae66eSBenny Halevy if (likely(p)) 30541da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3055c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3056c0eae66eSBenny Halevy return -EIO; 30571da177e4SLinus Torvalds } 30581da177e4SLinus Torvalds 30591da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 30601da177e4SLinus Torvalds { 30618687b63aSAl Viro uint32_t bmlen; 30628687b63aSAl Viro __be32 *p; 30631da177e4SLinus Torvalds 3064c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3065c0eae66eSBenny Halevy if (unlikely(!p)) 3066c0eae66eSBenny Halevy goto out_overflow; 3067cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 30681da177e4SLinus Torvalds 3069dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3070c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3071c0eae66eSBenny Halevy if (unlikely(!p)) 3072c0eae66eSBenny Halevy goto out_overflow; 30731da177e4SLinus Torvalds if (bmlen > 0) { 30746f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3075dae100c2SFred Isaman if (bmlen > 1) { 3076dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3077dae100c2SFred Isaman if (bmlen > 2) 3078dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3079dae100c2SFred Isaman } 30801da177e4SLinus Torvalds } 30811da177e4SLinus Torvalds return 0; 3082c0eae66eSBenny Halevy out_overflow: 3083c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3084c0eae66eSBenny Halevy return -EIO; 30851da177e4SLinus Torvalds } 30861da177e4SLinus Torvalds 3087256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 30881da177e4SLinus Torvalds { 30898687b63aSAl Viro __be32 *p; 30901da177e4SLinus Torvalds 3091c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3092c0eae66eSBenny Halevy if (unlikely(!p)) 3093c0eae66eSBenny Halevy goto out_overflow; 3094cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3095256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 30961da177e4SLinus Torvalds return 0; 3097c0eae66eSBenny Halevy out_overflow: 3098c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3099c0eae66eSBenny Halevy return -EIO; 31001da177e4SLinus Torvalds } 31011da177e4SLinus Torvalds 31021da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31031da177e4SLinus Torvalds { 31041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31053388bff5SRoman Borisov int ret; 31063388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31073388bff5SRoman Borisov if (unlikely(ret < 0)) 31083388bff5SRoman Borisov return ret; 31091da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31101da177e4SLinus Torvalds } else 3111dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3112dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3113dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31141da177e4SLinus Torvalds return 0; 31151da177e4SLinus Torvalds } 31161da177e4SLinus Torvalds 31171da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31181da177e4SLinus Torvalds { 31198687b63aSAl Viro __be32 *p; 3120409924e4STrond Myklebust int ret = 0; 31211da177e4SLinus Torvalds 31221da177e4SLinus Torvalds *type = 0; 31231da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31241da177e4SLinus Torvalds return -EIO; 31251da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3126c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3127c0eae66eSBenny Halevy if (unlikely(!p)) 3128c0eae66eSBenny Halevy goto out_overflow; 3129cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31301da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31313110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31321da177e4SLinus Torvalds return -EIO; 31331da177e4SLinus Torvalds } 31341da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3135409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 31361da177e4SLinus Torvalds } 3137bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3138409924e4STrond Myklebust return ret; 3139c0eae66eSBenny Halevy out_overflow: 3140c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3141c0eae66eSBenny Halevy return -EIO; 31421da177e4SLinus Torvalds } 31431da177e4SLinus Torvalds 3144264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3145264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3146264e6351SChuck Lever { 3147264e6351SChuck Lever __be32 *p; 3148264e6351SChuck Lever 3149264e6351SChuck Lever *type = 0; 3150264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3151264e6351SChuck Lever return -EIO; 3152264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3153264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3154264e6351SChuck Lever if (unlikely(!p)) 3155264e6351SChuck Lever goto out_overflow; 3156264e6351SChuck Lever *type = be32_to_cpup(p); 3157264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3158264e6351SChuck Lever } 3159264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3160264e6351SChuck Lever return 0; 3161264e6351SChuck Lever out_overflow: 3162264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3163264e6351SChuck Lever return -EIO; 3164264e6351SChuck Lever } 3165264e6351SChuck Lever 31661da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 31671da177e4SLinus Torvalds { 31688687b63aSAl Viro __be32 *p; 3169409924e4STrond Myklebust int ret = 0; 31701da177e4SLinus Torvalds 31711da177e4SLinus Torvalds *change = 0; 31721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 31731da177e4SLinus Torvalds return -EIO; 31741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3175c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3176c0eae66eSBenny Halevy if (unlikely(!p)) 3177c0eae66eSBenny Halevy goto out_overflow; 3178cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 31791da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3180409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 31811da177e4SLinus Torvalds } 31823110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 31831da177e4SLinus Torvalds (unsigned long long)*change); 3184409924e4STrond Myklebust return ret; 3185c0eae66eSBenny Halevy out_overflow: 3186c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3187c0eae66eSBenny Halevy return -EIO; 31881da177e4SLinus Torvalds } 31891da177e4SLinus Torvalds 31901da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 31911da177e4SLinus Torvalds { 31928687b63aSAl Viro __be32 *p; 3193409924e4STrond Myklebust int ret = 0; 31941da177e4SLinus Torvalds 31951da177e4SLinus Torvalds *size = 0; 31961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 31971da177e4SLinus Torvalds return -EIO; 31981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3199c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3200c0eae66eSBenny Halevy if (unlikely(!p)) 3201c0eae66eSBenny Halevy goto out_overflow; 3202cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32031da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3204409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32051da177e4SLinus Torvalds } 32063110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3207409924e4STrond Myklebust return ret; 3208c0eae66eSBenny Halevy out_overflow: 3209c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3210c0eae66eSBenny Halevy return -EIO; 32111da177e4SLinus Torvalds } 32121da177e4SLinus Torvalds 32131da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32141da177e4SLinus Torvalds { 32158687b63aSAl Viro __be32 *p; 32161da177e4SLinus Torvalds 32171da177e4SLinus Torvalds *res = 0; 32181da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32191da177e4SLinus Torvalds return -EIO; 32201da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3221c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3222c0eae66eSBenny Halevy if (unlikely(!p)) 3223c0eae66eSBenny Halevy goto out_overflow; 3224cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32261da177e4SLinus Torvalds } 32273110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32281da177e4SLinus Torvalds return 0; 3229c0eae66eSBenny Halevy out_overflow: 3230c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3231c0eae66eSBenny Halevy return -EIO; 32321da177e4SLinus Torvalds } 32331da177e4SLinus Torvalds 32341da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32351da177e4SLinus Torvalds { 32368687b63aSAl Viro __be32 *p; 32371da177e4SLinus Torvalds 32381da177e4SLinus Torvalds *res = 0; 32391da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32401da177e4SLinus Torvalds return -EIO; 32411da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3242c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3243c0eae66eSBenny Halevy if (unlikely(!p)) 3244c0eae66eSBenny Halevy goto out_overflow; 3245cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32461da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 32471da177e4SLinus Torvalds } 32483110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 32491da177e4SLinus Torvalds return 0; 3250c0eae66eSBenny Halevy out_overflow: 3251c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3252c0eae66eSBenny Halevy return -EIO; 32531da177e4SLinus Torvalds } 32541da177e4SLinus Torvalds 32558b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 32561da177e4SLinus Torvalds { 32578687b63aSAl Viro __be32 *p; 3258409924e4STrond Myklebust int ret = 0; 32591da177e4SLinus Torvalds 32601da177e4SLinus Torvalds fsid->major = 0; 32611da177e4SLinus Torvalds fsid->minor = 0; 32621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 32631da177e4SLinus Torvalds return -EIO; 32641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3265c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3266c0eae66eSBenny Halevy if (unlikely(!p)) 3267c0eae66eSBenny Halevy goto out_overflow; 32683ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3269cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 32701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3271409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 32721da177e4SLinus Torvalds } 32733110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 32741da177e4SLinus Torvalds (unsigned long long)fsid->major, 32751da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3276409924e4STrond Myklebust return ret; 3277c0eae66eSBenny Halevy out_overflow: 3278c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3279c0eae66eSBenny Halevy return -EIO; 32801da177e4SLinus Torvalds } 32811da177e4SLinus Torvalds 32821da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32831da177e4SLinus Torvalds { 32848687b63aSAl Viro __be32 *p; 32851da177e4SLinus Torvalds 32861da177e4SLinus Torvalds *res = 60; 32871da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 32881da177e4SLinus Torvalds return -EIO; 32891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3290c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3291c0eae66eSBenny Halevy if (unlikely(!p)) 3292c0eae66eSBenny Halevy goto out_overflow; 3293cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32941da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 32951da177e4SLinus Torvalds } 32963110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 32971da177e4SLinus Torvalds return 0; 3298c0eae66eSBenny Halevy out_overflow: 3299c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3300c0eae66eSBenny Halevy return -EIO; 33011da177e4SLinus Torvalds } 33021da177e4SLinus Torvalds 3303ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3304ae42c70aSBryan Schumaker { 3305ae42c70aSBryan Schumaker __be32 *p; 3306ae42c70aSBryan Schumaker 3307ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3308ae42c70aSBryan Schumaker return -EIO; 3309ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3310ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3311ae42c70aSBryan Schumaker if (unlikely(!p)) 3312ae42c70aSBryan Schumaker goto out_overflow; 3313ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3314ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3315ae42c70aSBryan Schumaker } 3316ae42c70aSBryan Schumaker return 0; 3317ae42c70aSBryan Schumaker out_overflow: 3318ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3319ae42c70aSBryan Schumaker return -EIO; 3320ae42c70aSBryan Schumaker } 3321ae42c70aSBryan Schumaker 3322ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3323ae42c70aSBryan Schumaker { 3324ae42c70aSBryan Schumaker __be32 *p; 3325ae42c70aSBryan Schumaker int len; 3326ae42c70aSBryan Schumaker 33277ad07353STrond Myklebust if (fh != NULL) 3328ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3329ae42c70aSBryan Schumaker 3330ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3331ae42c70aSBryan Schumaker return -EIO; 3332ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3333ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3334ae42c70aSBryan Schumaker if (unlikely(!p)) 3335ae42c70aSBryan Schumaker goto out_overflow; 3336ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3337ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3338ae42c70aSBryan Schumaker return -EIO; 3339ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3340ae42c70aSBryan Schumaker if (unlikely(!p)) 3341ae42c70aSBryan Schumaker goto out_overflow; 33427ad07353STrond Myklebust if (fh != NULL) { 3343ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 33447ad07353STrond Myklebust fh->size = len; 33457ad07353STrond Myklebust } 3346ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3347ae42c70aSBryan Schumaker } 3348ae42c70aSBryan Schumaker return 0; 3349ae42c70aSBryan Schumaker out_overflow: 3350ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3351ae42c70aSBryan Schumaker return -EIO; 3352ae42c70aSBryan Schumaker } 3353ae42c70aSBryan Schumaker 33541da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33551da177e4SLinus Torvalds { 33568687b63aSAl Viro __be32 *p; 33571da177e4SLinus Torvalds 33581da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 33591da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 33601da177e4SLinus Torvalds return -EIO; 33611da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3362c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3363c0eae66eSBenny Halevy if (unlikely(!p)) 3364c0eae66eSBenny Halevy goto out_overflow; 3365cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33661da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 33671da177e4SLinus Torvalds } 33683110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 33691da177e4SLinus Torvalds return 0; 3370c0eae66eSBenny Halevy out_overflow: 3371c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3372c0eae66eSBenny Halevy return -EIO; 33731da177e4SLinus Torvalds } 33741da177e4SLinus Torvalds 33751da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 33761da177e4SLinus Torvalds { 33778687b63aSAl Viro __be32 *p; 3378409924e4STrond Myklebust int ret = 0; 33791da177e4SLinus Torvalds 33801da177e4SLinus Torvalds *fileid = 0; 33811da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 33821da177e4SLinus Torvalds return -EIO; 33831da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3384c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3385c0eae66eSBenny Halevy if (unlikely(!p)) 3386c0eae66eSBenny Halevy goto out_overflow; 3387cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 33881da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3389409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 33901da177e4SLinus Torvalds } 33913110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3392409924e4STrond Myklebust return ret; 3393c0eae66eSBenny Halevy out_overflow: 3394c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3395c0eae66eSBenny Halevy return -EIO; 33961da177e4SLinus Torvalds } 33971da177e4SLinus Torvalds 339899baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 339999baf625SManoj Naik { 34008687b63aSAl Viro __be32 *p; 3401409924e4STrond Myklebust int ret = 0; 340299baf625SManoj Naik 340399baf625SManoj Naik *fileid = 0; 340499baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 340599baf625SManoj Naik return -EIO; 340699baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3407c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3408c0eae66eSBenny Halevy if (unlikely(!p)) 3409c0eae66eSBenny Halevy goto out_overflow; 3410cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 341199baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 341228331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 341399baf625SManoj Naik } 34143110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3415409924e4STrond Myklebust return ret; 3416c0eae66eSBenny Halevy out_overflow: 3417c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3418c0eae66eSBenny Halevy return -EIO; 341999baf625SManoj Naik } 342099baf625SManoj Naik 34211da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34221da177e4SLinus Torvalds { 34238687b63aSAl Viro __be32 *p; 34241da177e4SLinus Torvalds int status = 0; 34251da177e4SLinus Torvalds 34261da177e4SLinus Torvalds *res = 0; 34271da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34281da177e4SLinus Torvalds return -EIO; 34291da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3430c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3431c0eae66eSBenny Halevy if (unlikely(!p)) 3432c0eae66eSBenny Halevy goto out_overflow; 3433cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34341da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34351da177e4SLinus Torvalds } 34363110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34371da177e4SLinus Torvalds return status; 3438c0eae66eSBenny Halevy out_overflow: 3439c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3440c0eae66eSBenny Halevy return -EIO; 34411da177e4SLinus Torvalds } 34421da177e4SLinus Torvalds 34431da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34441da177e4SLinus Torvalds { 34458687b63aSAl Viro __be32 *p; 34461da177e4SLinus Torvalds int status = 0; 34471da177e4SLinus Torvalds 34481da177e4SLinus Torvalds *res = 0; 34491da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 34501da177e4SLinus Torvalds return -EIO; 34511da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3452c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3453c0eae66eSBenny Halevy if (unlikely(!p)) 3454c0eae66eSBenny Halevy goto out_overflow; 3455cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34561da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 34571da177e4SLinus Torvalds } 34583110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 34591da177e4SLinus Torvalds return status; 3460c0eae66eSBenny Halevy out_overflow: 3461c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3462c0eae66eSBenny Halevy return -EIO; 34631da177e4SLinus Torvalds } 34641da177e4SLinus Torvalds 34651da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34661da177e4SLinus Torvalds { 34678687b63aSAl Viro __be32 *p; 34681da177e4SLinus Torvalds int status = 0; 34691da177e4SLinus Torvalds 34701da177e4SLinus Torvalds *res = 0; 34711da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 34721da177e4SLinus Torvalds return -EIO; 34731da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3474c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3475c0eae66eSBenny Halevy if (unlikely(!p)) 3476c0eae66eSBenny Halevy goto out_overflow; 3477cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 34791da177e4SLinus Torvalds } 34803110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 34811da177e4SLinus Torvalds return status; 3482c0eae66eSBenny Halevy out_overflow: 3483c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3484c0eae66eSBenny Halevy return -EIO; 34851da177e4SLinus Torvalds } 34861da177e4SLinus Torvalds 34877aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 34887aaa0b3bSManoj Naik { 3489464ad6b1SChuck Lever u32 n; 34908687b63aSAl Viro __be32 *p; 34917aaa0b3bSManoj Naik int status = 0; 34927aaa0b3bSManoj Naik 3493c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3494c0eae66eSBenny Halevy if (unlikely(!p)) 3495c0eae66eSBenny Halevy goto out_overflow; 3496cccddf4fSBenny Halevy n = be32_to_cpup(p); 349733a43f28SAndy Adamson if (n == 0) 349833a43f28SAndy Adamson goto root_path; 349902a2976cSChuck Lever dprintk("pathname4: "); 35007aaa0b3bSManoj Naik path->ncomponents = 0; 35017aaa0b3bSManoj Naik while (path->ncomponents < n) { 35027aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35037aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35047aaa0b3bSManoj Naik if (unlikely(status != 0)) 35057aaa0b3bSManoj Naik goto out_eio; 350695a13f7bSTrond Myklebust ifdebug (XDR) 350702a2976cSChuck Lever pr_cont("%s%.*s ", 350802a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 350902a2976cSChuck Lever component->len, component->data); 35107aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 35117aaa0b3bSManoj Naik path->ncomponents++; 35127aaa0b3bSManoj Naik else { 35137aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 35147aaa0b3bSManoj Naik goto out_eio; 35157aaa0b3bSManoj Naik } 35167aaa0b3bSManoj Naik } 35177aaa0b3bSManoj Naik out: 35187aaa0b3bSManoj Naik return status; 351933a43f28SAndy Adamson root_path: 352033a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 352133a43f28SAndy Adamson path->ncomponents = 1; 352233a43f28SAndy Adamson path->components[0].len=0; 352333a43f28SAndy Adamson path->components[0].data=NULL; 352402a2976cSChuck Lever dprintk("pathname4: /\n"); 352533a43f28SAndy Adamson goto out; 35267aaa0b3bSManoj Naik out_eio: 35277aaa0b3bSManoj Naik dprintk(" status %d", status); 35287aaa0b3bSManoj Naik status = -EIO; 35297aaa0b3bSManoj Naik goto out; 3530c0eae66eSBenny Halevy out_overflow: 3531c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3532c0eae66eSBenny Halevy return -EIO; 35337aaa0b3bSManoj Naik } 35347aaa0b3bSManoj Naik 35357aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3536683b57b4STrond Myklebust { 3537683b57b4STrond Myklebust int n; 35388687b63aSAl Viro __be32 *p; 3539683b57b4STrond Myklebust int status = -EIO; 3540683b57b4STrond Myklebust 3541683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3542683b57b4STrond Myklebust goto out; 3543683b57b4STrond Myklebust status = 0; 3544683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3545683b57b4STrond Myklebust goto out; 35468b7e3f49STrond Myklebust status = -EIO; 35478b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 35488b7e3f49STrond Myklebust if (unlikely(res == NULL)) 35498b7e3f49STrond Myklebust goto out; 355002a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 35517aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3552683b57b4STrond Myklebust if (unlikely(status != 0)) 3553683b57b4STrond Myklebust goto out; 3554c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3555c0eae66eSBenny Halevy if (unlikely(!p)) 3556c0eae66eSBenny Halevy goto out_overflow; 3557cccddf4fSBenny Halevy n = be32_to_cpup(p); 3558683b57b4STrond Myklebust if (n <= 0) 3559683b57b4STrond Myklebust goto out_eio; 3560683b57b4STrond Myklebust res->nlocations = 0; 3561683b57b4STrond Myklebust while (res->nlocations < n) { 3562464ad6b1SChuck Lever u32 m; 35637aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3564683b57b4STrond Myklebust 3565c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3566c0eae66eSBenny Halevy if (unlikely(!p)) 3567c0eae66eSBenny Halevy goto out_overflow; 3568cccddf4fSBenny Halevy m = be32_to_cpup(p); 35697aaa0b3bSManoj Naik 35707aaa0b3bSManoj Naik loc->nservers = 0; 357102a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 35727aaa0b3bSManoj Naik while (loc->nservers < m) { 35737aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 35747aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3575683b57b4STrond Myklebust if (unlikely(status != 0)) 3576683b57b4STrond Myklebust goto out_eio; 35777aaa0b3bSManoj Naik dprintk("%s ", server->data); 35787aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 35797aaa0b3bSManoj Naik loc->nservers++; 35807aaa0b3bSManoj Naik else { 3581464ad6b1SChuck Lever unsigned int i; 3582464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3583464ad6b1SChuck Lever "returned for location %u\n", 35843110ff80SHarvey Harrison __func__, 3585464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3586464ad6b1SChuck Lever m, res->nlocations); 35877aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 35882e42c3e2STrond Myklebust unsigned int len; 35897aaa0b3bSManoj Naik char *data; 35907aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3591683b57b4STrond Myklebust if (unlikely(status != 0)) 3592683b57b4STrond Myklebust goto out_eio; 35937aaa0b3bSManoj Naik } 35947aaa0b3bSManoj Naik } 35957aaa0b3bSManoj Naik } 35967aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 35977aaa0b3bSManoj Naik if (unlikely(status != 0)) 35987aaa0b3bSManoj Naik goto out_eio; 35997aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3600683b57b4STrond Myklebust res->nlocations++; 3601683b57b4STrond Myklebust } 3602409924e4STrond Myklebust if (res->nlocations != 0) 360381934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3604683b57b4STrond Myklebust out: 36053110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3606683b57b4STrond Myklebust return status; 3607c0eae66eSBenny Halevy out_overflow: 3608c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3609683b57b4STrond Myklebust out_eio: 3610683b57b4STrond Myklebust status = -EIO; 3611683b57b4STrond Myklebust goto out; 3612683b57b4STrond Myklebust } 3613683b57b4STrond Myklebust 36141da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36151da177e4SLinus Torvalds { 36168687b63aSAl Viro __be32 *p; 36171da177e4SLinus Torvalds int status = 0; 36181da177e4SLinus Torvalds 36191da177e4SLinus Torvalds *res = 0; 36201da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36211da177e4SLinus Torvalds return -EIO; 36221da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3623c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3624c0eae66eSBenny Halevy if (unlikely(!p)) 3625c0eae66eSBenny Halevy goto out_overflow; 3626cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36281da177e4SLinus Torvalds } 36293110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36301da177e4SLinus Torvalds return status; 3631c0eae66eSBenny Halevy out_overflow: 3632c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3633c0eae66eSBenny Halevy return -EIO; 36341da177e4SLinus Torvalds } 36351da177e4SLinus Torvalds 36361da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36371da177e4SLinus Torvalds { 36388687b63aSAl Viro __be32 *p; 36391da177e4SLinus Torvalds int status = 0; 36401da177e4SLinus Torvalds 36411da177e4SLinus Torvalds *maxlink = 1; 36421da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 36431da177e4SLinus Torvalds return -EIO; 36441da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3645c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3646c0eae66eSBenny Halevy if (unlikely(!p)) 3647c0eae66eSBenny Halevy goto out_overflow; 3648cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 36491da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 36501da177e4SLinus Torvalds } 36513110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 36521da177e4SLinus Torvalds return status; 3653c0eae66eSBenny Halevy out_overflow: 3654c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3655c0eae66eSBenny Halevy return -EIO; 36561da177e4SLinus Torvalds } 36571da177e4SLinus Torvalds 36581da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 36591da177e4SLinus Torvalds { 36608687b63aSAl Viro __be32 *p; 36611da177e4SLinus Torvalds int status = 0; 36621da177e4SLinus Torvalds 36631da177e4SLinus Torvalds *maxname = 1024; 36641da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 36651da177e4SLinus Torvalds return -EIO; 36661da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3667c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3668c0eae66eSBenny Halevy if (unlikely(!p)) 3669c0eae66eSBenny Halevy goto out_overflow; 3670cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 36711da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 36721da177e4SLinus Torvalds } 36733110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 36741da177e4SLinus Torvalds return status; 3675c0eae66eSBenny Halevy out_overflow: 3676c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3677c0eae66eSBenny Halevy return -EIO; 36781da177e4SLinus Torvalds } 36791da177e4SLinus Torvalds 36801da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36811da177e4SLinus Torvalds { 36828687b63aSAl Viro __be32 *p; 36831da177e4SLinus Torvalds int status = 0; 36841da177e4SLinus Torvalds 36851da177e4SLinus Torvalds *res = 1024; 36861da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 36871da177e4SLinus Torvalds return -EIO; 36881da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 36891da177e4SLinus Torvalds uint64_t maxread; 3690c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3691c0eae66eSBenny Halevy if (unlikely(!p)) 3692c0eae66eSBenny Halevy goto out_overflow; 3693cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 36941da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 36951da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 36961da177e4SLinus Torvalds *res = (uint32_t)maxread; 36971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 36981da177e4SLinus Torvalds } 36993110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37001da177e4SLinus Torvalds return status; 3701c0eae66eSBenny Halevy out_overflow: 3702c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3703c0eae66eSBenny Halevy return -EIO; 37041da177e4SLinus Torvalds } 37051da177e4SLinus Torvalds 37061da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37071da177e4SLinus Torvalds { 37088687b63aSAl Viro __be32 *p; 37091da177e4SLinus Torvalds int status = 0; 37101da177e4SLinus Torvalds 37111da177e4SLinus Torvalds *res = 1024; 37121da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37131da177e4SLinus Torvalds return -EIO; 37141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37151da177e4SLinus Torvalds uint64_t maxwrite; 3716c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3717c0eae66eSBenny Halevy if (unlikely(!p)) 3718c0eae66eSBenny Halevy goto out_overflow; 3719cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37201da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37211da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37221da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37231da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37241da177e4SLinus Torvalds } 37253110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37261da177e4SLinus Torvalds return status; 3727c0eae66eSBenny Halevy out_overflow: 3728c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3729c0eae66eSBenny Halevy return -EIO; 37301da177e4SLinus Torvalds } 37311da177e4SLinus Torvalds 3732bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37331da177e4SLinus Torvalds { 3734bca79478STrond Myklebust uint32_t tmp; 37358687b63aSAl Viro __be32 *p; 3736409924e4STrond Myklebust int ret = 0; 37371da177e4SLinus Torvalds 37381da177e4SLinus Torvalds *mode = 0; 37391da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 37401da177e4SLinus Torvalds return -EIO; 37411da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3742c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3743c0eae66eSBenny Halevy if (unlikely(!p)) 3744c0eae66eSBenny Halevy goto out_overflow; 3745cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3746bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 37471da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3748409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 37491da177e4SLinus Torvalds } 37503110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3751409924e4STrond Myklebust return ret; 3752c0eae66eSBenny Halevy out_overflow: 3753c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3754c0eae66eSBenny Halevy return -EIO; 37551da177e4SLinus Torvalds } 37561da177e4SLinus Torvalds 37571da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 37581da177e4SLinus Torvalds { 37598687b63aSAl Viro __be32 *p; 3760409924e4STrond Myklebust int ret = 0; 37611da177e4SLinus Torvalds 37621da177e4SLinus Torvalds *nlink = 1; 37631da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 37641da177e4SLinus Torvalds return -EIO; 37651da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3766c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3767c0eae66eSBenny Halevy if (unlikely(!p)) 3768c0eae66eSBenny Halevy goto out_overflow; 3769cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 37701da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3771409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 37721da177e4SLinus Torvalds } 37733110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3774409924e4STrond Myklebust return ret; 3775c0eae66eSBenny Halevy out_overflow: 3776c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3777c0eae66eSBenny Halevy return -EIO; 37781da177e4SLinus Torvalds } 37791da177e4SLinus Torvalds 378080e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 37816926afd1STrond Myklebust const struct nfs_server *server, uint32_t *uid, 37826926afd1STrond Myklebust struct nfs4_string *owner_name) 37831da177e4SLinus Torvalds { 37848687b63aSAl Viro uint32_t len; 37858687b63aSAl Viro __be32 *p; 3786409924e4STrond Myklebust int ret = 0; 37871da177e4SLinus Torvalds 37881da177e4SLinus Torvalds *uid = -2; 37891da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 37901da177e4SLinus Torvalds return -EIO; 37911da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3792c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3793c0eae66eSBenny Halevy if (unlikely(!p)) 3794c0eae66eSBenny Halevy goto out_overflow; 3795cccddf4fSBenny Halevy len = be32_to_cpup(p); 3796c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3797c0eae66eSBenny Halevy if (unlikely(!p)) 3798c0eae66eSBenny Halevy goto out_overflow; 37996926afd1STrond Myklebust if (owner_name != NULL) { 38006926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38016926afd1STrond Myklebust if (owner_name->data != NULL) { 38026926afd1STrond Myklebust owner_name->len = len; 38036926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38046926afd1STrond Myklebust } 380580e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3806e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3807409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3808409924e4STrond Myklebust else 38091da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38103110ff80SHarvey Harrison __func__); 38111da177e4SLinus Torvalds } else 3812fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38133110ff80SHarvey Harrison __func__, len); 38141da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38151da177e4SLinus Torvalds } 38163110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3817409924e4STrond Myklebust return ret; 3818c0eae66eSBenny Halevy out_overflow: 3819c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3820c0eae66eSBenny Halevy return -EIO; 38211da177e4SLinus Torvalds } 38221da177e4SLinus Torvalds 382380e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 38246926afd1STrond Myklebust const struct nfs_server *server, uint32_t *gid, 38256926afd1STrond Myklebust struct nfs4_string *group_name) 38261da177e4SLinus Torvalds { 38278687b63aSAl Viro uint32_t len; 38288687b63aSAl Viro __be32 *p; 3829409924e4STrond Myklebust int ret = 0; 38301da177e4SLinus Torvalds 38311da177e4SLinus Torvalds *gid = -2; 38321da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38331da177e4SLinus Torvalds return -EIO; 38341da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3835c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3836c0eae66eSBenny Halevy if (unlikely(!p)) 3837c0eae66eSBenny Halevy goto out_overflow; 3838cccddf4fSBenny Halevy len = be32_to_cpup(p); 3839c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3840c0eae66eSBenny Halevy if (unlikely(!p)) 3841c0eae66eSBenny Halevy goto out_overflow; 38426926afd1STrond Myklebust if (group_name != NULL) { 38436926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 38446926afd1STrond Myklebust if (group_name->data != NULL) { 38456926afd1STrond Myklebust group_name->len = len; 38466926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 38476926afd1STrond Myklebust } 384880e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3849e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3850409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3851409924e4STrond Myklebust else 38521da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 38533110ff80SHarvey Harrison __func__); 38541da177e4SLinus Torvalds } else 3855fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38563110ff80SHarvey Harrison __func__, len); 38571da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 38581da177e4SLinus Torvalds } 38593110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3860409924e4STrond Myklebust return ret; 3861c0eae66eSBenny Halevy out_overflow: 3862c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3863c0eae66eSBenny Halevy return -EIO; 38641da177e4SLinus Torvalds } 38651da177e4SLinus Torvalds 38661da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 38671da177e4SLinus Torvalds { 38688687b63aSAl Viro uint32_t major = 0, minor = 0; 38698687b63aSAl Viro __be32 *p; 3870409924e4STrond Myklebust int ret = 0; 38711da177e4SLinus Torvalds 38721da177e4SLinus Torvalds *rdev = MKDEV(0,0); 38731da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 38741da177e4SLinus Torvalds return -EIO; 38751da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 38761da177e4SLinus Torvalds dev_t tmp; 38771da177e4SLinus Torvalds 3878c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3879c0eae66eSBenny Halevy if (unlikely(!p)) 3880c0eae66eSBenny Halevy goto out_overflow; 38816f723f77SBenny Halevy major = be32_to_cpup(p++); 3882cccddf4fSBenny Halevy minor = be32_to_cpup(p); 38831da177e4SLinus Torvalds tmp = MKDEV(major, minor); 38841da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 38851da177e4SLinus Torvalds *rdev = tmp; 38861da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3887409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 38881da177e4SLinus Torvalds } 38893110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3890409924e4STrond Myklebust return ret; 3891c0eae66eSBenny Halevy out_overflow: 3892c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3893c0eae66eSBenny Halevy return -EIO; 38941da177e4SLinus Torvalds } 38951da177e4SLinus Torvalds 38961da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 38971da177e4SLinus Torvalds { 38988687b63aSAl Viro __be32 *p; 38991da177e4SLinus Torvalds int status = 0; 39001da177e4SLinus Torvalds 39011da177e4SLinus Torvalds *res = 0; 39021da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39031da177e4SLinus Torvalds return -EIO; 39041da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3905c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3906c0eae66eSBenny Halevy if (unlikely(!p)) 3907c0eae66eSBenny Halevy goto out_overflow; 3908cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39091da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39101da177e4SLinus Torvalds } 39113110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39121da177e4SLinus Torvalds return status; 3913c0eae66eSBenny Halevy out_overflow: 3914c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3915c0eae66eSBenny Halevy return -EIO; 39161da177e4SLinus Torvalds } 39171da177e4SLinus Torvalds 39181da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39191da177e4SLinus Torvalds { 39208687b63aSAl Viro __be32 *p; 39211da177e4SLinus Torvalds int status = 0; 39221da177e4SLinus Torvalds 39231da177e4SLinus Torvalds *res = 0; 39241da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39251da177e4SLinus Torvalds return -EIO; 39261da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3927c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3928c0eae66eSBenny Halevy if (unlikely(!p)) 3929c0eae66eSBenny Halevy goto out_overflow; 3930cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39311da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39321da177e4SLinus Torvalds } 39333110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39341da177e4SLinus Torvalds return status; 3935c0eae66eSBenny Halevy out_overflow: 3936c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3937c0eae66eSBenny Halevy return -EIO; 39381da177e4SLinus Torvalds } 39391da177e4SLinus Torvalds 39401da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39411da177e4SLinus Torvalds { 39428687b63aSAl Viro __be32 *p; 39431da177e4SLinus Torvalds int status = 0; 39441da177e4SLinus Torvalds 39451da177e4SLinus Torvalds *res = 0; 39461da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 39471da177e4SLinus Torvalds return -EIO; 39481da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3949c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3950c0eae66eSBenny Halevy if (unlikely(!p)) 3951c0eae66eSBenny Halevy goto out_overflow; 3952cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39531da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 39541da177e4SLinus Torvalds } 39553110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 39561da177e4SLinus Torvalds return status; 3957c0eae66eSBenny Halevy out_overflow: 3958c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3959c0eae66eSBenny Halevy return -EIO; 39601da177e4SLinus Torvalds } 39611da177e4SLinus Torvalds 39621da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 39631da177e4SLinus Torvalds { 39648687b63aSAl Viro __be32 *p; 3965409924e4STrond Myklebust int ret = 0; 39661da177e4SLinus Torvalds 39671da177e4SLinus Torvalds *used = 0; 39681da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 39691da177e4SLinus Torvalds return -EIO; 39701da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3971c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3972c0eae66eSBenny Halevy if (unlikely(!p)) 3973c0eae66eSBenny Halevy goto out_overflow; 3974cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 39751da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3976409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 39771da177e4SLinus Torvalds } 39783110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 39791da177e4SLinus Torvalds (unsigned long long)*used); 3980409924e4STrond Myklebust return ret; 3981c0eae66eSBenny Halevy out_overflow: 3982c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3983c0eae66eSBenny Halevy return -EIO; 39841da177e4SLinus Torvalds } 39851da177e4SLinus Torvalds 39861da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 39871da177e4SLinus Torvalds { 39888687b63aSAl Viro __be32 *p; 39891da177e4SLinus Torvalds uint64_t sec; 39901da177e4SLinus Torvalds uint32_t nsec; 39911da177e4SLinus Torvalds 3992c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3993c0eae66eSBenny Halevy if (unlikely(!p)) 3994c0eae66eSBenny Halevy goto out_overflow; 39953ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3996cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 39971da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 39981da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 39991da177e4SLinus Torvalds return 0; 4000c0eae66eSBenny Halevy out_overflow: 4001c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4002c0eae66eSBenny Halevy return -EIO; 40031da177e4SLinus Torvalds } 40041da177e4SLinus Torvalds 40051da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40061da177e4SLinus Torvalds { 40071da177e4SLinus Torvalds int status = 0; 40081da177e4SLinus Torvalds 40091da177e4SLinus Torvalds time->tv_sec = 0; 40101da177e4SLinus Torvalds time->tv_nsec = 0; 40111da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40121da177e4SLinus Torvalds return -EIO; 40131da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40141da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4015409924e4STrond Myklebust if (status == 0) 4016409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40171da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40181da177e4SLinus Torvalds } 40193110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40201da177e4SLinus Torvalds return status; 40211da177e4SLinus Torvalds } 40221da177e4SLinus Torvalds 40231da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40241da177e4SLinus Torvalds { 40251da177e4SLinus Torvalds int status = 0; 40261da177e4SLinus Torvalds 40271da177e4SLinus Torvalds time->tv_sec = 0; 40281da177e4SLinus Torvalds time->tv_nsec = 0; 40291da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40301da177e4SLinus Torvalds return -EIO; 40311da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40321da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4033409924e4STrond Myklebust if (status == 0) 4034409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40351da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40361da177e4SLinus Torvalds } 40373110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40381da177e4SLinus Torvalds return status; 40391da177e4SLinus Torvalds } 40401da177e4SLinus Torvalds 404155b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 404255b6e774SRicardo Labiaga struct timespec *time) 404355b6e774SRicardo Labiaga { 404455b6e774SRicardo Labiaga int status = 0; 404555b6e774SRicardo Labiaga 404655b6e774SRicardo Labiaga time->tv_sec = 0; 404755b6e774SRicardo Labiaga time->tv_nsec = 0; 404855b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 404955b6e774SRicardo Labiaga return -EIO; 405055b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 405155b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 405255b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 405355b6e774SRicardo Labiaga } 405455b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 405555b6e774SRicardo Labiaga (long)time->tv_nsec); 405655b6e774SRicardo Labiaga return status; 405755b6e774SRicardo Labiaga } 405855b6e774SRicardo Labiaga 40591da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40601da177e4SLinus Torvalds { 40611da177e4SLinus Torvalds int status = 0; 40621da177e4SLinus Torvalds 40631da177e4SLinus Torvalds time->tv_sec = 0; 40641da177e4SLinus Torvalds time->tv_nsec = 0; 40651da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 40661da177e4SLinus Torvalds return -EIO; 40671da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 40681da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4069409924e4STrond Myklebust if (status == 0) 4070409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 40711da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 40721da177e4SLinus Torvalds } 40733110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 40741da177e4SLinus Torvalds return status; 40751da177e4SLinus Torvalds } 40761da177e4SLinus Torvalds 4077256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 40781da177e4SLinus Torvalds { 40791da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4080256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 40811da177e4SLinus Torvalds 40821da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4083fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4084fe82a183SChuck Lever "%u %c %u\n", 40853110ff80SHarvey Harrison __func__, 40861da177e4SLinus Torvalds attrwords << 2, 40871da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 40881da177e4SLinus Torvalds nwords << 2); 40891da177e4SLinus Torvalds return -EIO; 40901da177e4SLinus Torvalds } 40911da177e4SLinus Torvalds return 0; 40921da177e4SLinus Torvalds } 40931da177e4SLinus Torvalds 40941da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40951da177e4SLinus Torvalds { 40968687b63aSAl Viro __be32 *p; 40971da177e4SLinus Torvalds 4098c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4099c0eae66eSBenny Halevy if (unlikely(!p)) 4100c0eae66eSBenny Halevy goto out_overflow; 41016f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 41023ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4103cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 41041da177e4SLinus Torvalds return 0; 4105c0eae66eSBenny Halevy out_overflow: 4106c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4107c0eae66eSBenny Halevy return -EIO; 41081da177e4SLinus Torvalds } 41091da177e4SLinus Torvalds 41106168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 41111da177e4SLinus Torvalds { 41128687b63aSAl Viro __be32 *p; 41131da177e4SLinus Torvalds uint32_t supp, acc; 41141da177e4SLinus Torvalds int status; 41151da177e4SLinus Torvalds 41161da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41171da177e4SLinus Torvalds if (status) 41181da177e4SLinus Torvalds return status; 4119c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4120c0eae66eSBenny Halevy if (unlikely(!p)) 4121c0eae66eSBenny Halevy goto out_overflow; 41226f723f77SBenny Halevy supp = be32_to_cpup(p++); 4123cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41246168f62cSWeston Andros Adamson *supported = supp; 41256168f62cSWeston Andros Adamson *access = acc; 41261da177e4SLinus Torvalds return 0; 4127c0eae66eSBenny Halevy out_overflow: 4128c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4129c0eae66eSBenny Halevy return -EIO; 41301da177e4SLinus Torvalds } 41311da177e4SLinus Torvalds 413207d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41331da177e4SLinus Torvalds { 41348687b63aSAl Viro __be32 *p; 413507d30434SBenny Halevy 413607d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 413707d30434SBenny Halevy if (likely(p)) { 413807d30434SBenny Halevy memcpy(buf, p, len); 413907d30434SBenny Halevy return 0; 414007d30434SBenny Halevy } 414107d30434SBenny Halevy print_overflow_msg(__func__, xdr); 414207d30434SBenny Halevy return -EIO; 414307d30434SBenny Halevy } 414407d30434SBenny Halevy 414507d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 414607d30434SBenny Halevy { 41472d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 41481da177e4SLinus Torvalds } 41491da177e4SLinus Torvalds 41501da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 41511da177e4SLinus Torvalds { 41521da177e4SLinus Torvalds int status; 41531da177e4SLinus Torvalds 41541da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4155c1d51931STrond Myklebust if (status != -EIO) 4156c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 415707d30434SBenny Halevy if (!status) 415807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41591da177e4SLinus Torvalds return status; 41601da177e4SLinus Torvalds } 41611da177e4SLinus Torvalds 4162db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4163db942bbdSBenny Halevy { 4164cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 41651da177e4SLinus Torvalds } 41661da177e4SLinus Torvalds 41672f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 41682f2c63bcSTrond Myklebust { 41692f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 41702f2c63bcSTrond Myklebust } 41712f2c63bcSTrond Myklebust 41720b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 41731da177e4SLinus Torvalds { 41741da177e4SLinus Torvalds int status; 41751da177e4SLinus Torvalds 41761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4177db942bbdSBenny Halevy if (!status) 41782f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 41791da177e4SLinus Torvalds return status; 41801da177e4SLinus Torvalds } 41811da177e4SLinus Torvalds 41821da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41831da177e4SLinus Torvalds { 41848687b63aSAl Viro __be32 *p; 41851da177e4SLinus Torvalds uint32_t bmlen; 41861da177e4SLinus Torvalds int status; 41871da177e4SLinus Torvalds 41881da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 41891da177e4SLinus Torvalds if (status) 41901da177e4SLinus Torvalds return status; 41911da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 41921da177e4SLinus Torvalds return status; 4193c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4194c0eae66eSBenny Halevy if (unlikely(!p)) 4195c0eae66eSBenny Halevy goto out_overflow; 4196cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4197c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4198c0eae66eSBenny Halevy if (likely(p)) 41991da177e4SLinus Torvalds return 0; 4200c0eae66eSBenny Halevy out_overflow: 4201c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4202c0eae66eSBenny Halevy return -EIO; 42031da177e4SLinus Torvalds } 42041da177e4SLinus Torvalds 42051da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 42061da177e4SLinus Torvalds { 4207256e48bbSTrond Myklebust unsigned int savep; 4208dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42091da177e4SLinus Torvalds int status; 42101da177e4SLinus Torvalds 42111da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42121da177e4SLinus Torvalds goto xdr_error; 42131da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42141da177e4SLinus Torvalds goto xdr_error; 42151da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42161da177e4SLinus Torvalds goto xdr_error; 42171da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42181da177e4SLinus Torvalds goto xdr_error; 4219264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4220264e6351SChuck Lever &res->fh_expire_type)) != 0) 4221264e6351SChuck Lever goto xdr_error; 42221da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42231da177e4SLinus Torvalds goto xdr_error; 42241da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42251da177e4SLinus Torvalds goto xdr_error; 42261da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42271da177e4SLinus Torvalds goto xdr_error; 42281da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42291da177e4SLinus Torvalds xdr_error: 42303110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42311da177e4SLinus Torvalds return status; 42321da177e4SLinus Torvalds } 42331da177e4SLinus Torvalds 42341da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42351da177e4SLinus Torvalds { 4236256e48bbSTrond Myklebust unsigned int savep; 4237dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42381da177e4SLinus Torvalds int status; 42391da177e4SLinus Torvalds 42401da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42411da177e4SLinus Torvalds goto xdr_error; 42421da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42431da177e4SLinus Torvalds goto xdr_error; 42441da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42451da177e4SLinus Torvalds goto xdr_error; 42461da177e4SLinus Torvalds 42471da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 42481da177e4SLinus Torvalds goto xdr_error; 42491da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 42501da177e4SLinus Torvalds goto xdr_error; 42511da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 42521da177e4SLinus Torvalds goto xdr_error; 42531da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 42541da177e4SLinus Torvalds goto xdr_error; 42551da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 42561da177e4SLinus Torvalds goto xdr_error; 42571da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 42581da177e4SLinus Torvalds goto xdr_error; 42591da177e4SLinus Torvalds 42601da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42611da177e4SLinus Torvalds xdr_error: 42623110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42631da177e4SLinus Torvalds return status; 42641da177e4SLinus Torvalds } 42651da177e4SLinus Torvalds 42661da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 42671da177e4SLinus Torvalds { 4268256e48bbSTrond Myklebust unsigned int savep; 4269dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42701da177e4SLinus Torvalds int status; 42711da177e4SLinus Torvalds 42721da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42731da177e4SLinus Torvalds goto xdr_error; 42741da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42751da177e4SLinus Torvalds goto xdr_error; 42761da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42771da177e4SLinus Torvalds goto xdr_error; 42781da177e4SLinus Torvalds 42791da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 42801da177e4SLinus Torvalds goto xdr_error; 42811da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 42821da177e4SLinus Torvalds goto xdr_error; 42831da177e4SLinus Torvalds 42841da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42851da177e4SLinus Torvalds xdr_error: 42863110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42871da177e4SLinus Torvalds return status; 42881da177e4SLinus Torvalds } 42891da177e4SLinus Torvalds 429088034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 429188034c3dSAndy Adamson uint32_t *bitmap, 429288034c3dSAndy Adamson uint64_t *res, 429388034c3dSAndy Adamson uint32_t hint_bit) 429488034c3dSAndy Adamson { 429588034c3dSAndy Adamson __be32 *p; 429688034c3dSAndy Adamson 429788034c3dSAndy Adamson *res = 0; 429888034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 429988034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 430088034c3dSAndy Adamson if (unlikely(!p)) 430188034c3dSAndy Adamson goto out_overflow; 430288034c3dSAndy Adamson xdr_decode_hyper(p, res); 430388034c3dSAndy Adamson } 430488034c3dSAndy Adamson return 0; 430588034c3dSAndy Adamson out_overflow: 430688034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 430788034c3dSAndy Adamson return -EIO; 430888034c3dSAndy Adamson } 430988034c3dSAndy Adamson 431088034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 431188034c3dSAndy Adamson struct nfs4_threshold *res) 431288034c3dSAndy Adamson { 4313256e48bbSTrond Myklebust __be32 *p; 4314256e48bbSTrond Myklebust unsigned int savep; 431588034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 431688034c3dSAndy Adamson int status; 431788034c3dSAndy Adamson 431888034c3dSAndy Adamson /* layout type */ 431988034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 432088034c3dSAndy Adamson if (unlikely(!p)) { 432188034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 432288034c3dSAndy Adamson return -EIO; 432388034c3dSAndy Adamson } 432488034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 432588034c3dSAndy Adamson 432688034c3dSAndy Adamson /* thi_hintset bitmap */ 432788034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 432888034c3dSAndy Adamson if (status < 0) 432988034c3dSAndy Adamson goto xdr_error; 433088034c3dSAndy Adamson 433188034c3dSAndy Adamson /* thi_hintlist length */ 433288034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 433388034c3dSAndy Adamson if (status < 0) 433488034c3dSAndy Adamson goto xdr_error; 433588034c3dSAndy Adamson /* thi_hintlist */ 433688034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 433788034c3dSAndy Adamson if (status < 0) 433888034c3dSAndy Adamson goto xdr_error; 433988034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 434088034c3dSAndy Adamson if (status < 0) 434188034c3dSAndy Adamson goto xdr_error; 434288034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 434388034c3dSAndy Adamson THRESHOLD_RD_IO); 434488034c3dSAndy Adamson if (status < 0) 434588034c3dSAndy Adamson goto xdr_error; 434688034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 434788034c3dSAndy Adamson THRESHOLD_WR_IO); 434888034c3dSAndy Adamson if (status < 0) 434988034c3dSAndy Adamson goto xdr_error; 435088034c3dSAndy Adamson 435188034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 435288034c3dSAndy Adamson res->bm = bitmap[0]; 435388034c3dSAndy Adamson 435488034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 435588034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 435688034c3dSAndy Adamson res->wr_io_sz); 435788034c3dSAndy Adamson xdr_error: 435888034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 435988034c3dSAndy Adamson return status; 436088034c3dSAndy Adamson } 436188034c3dSAndy Adamson 436288034c3dSAndy Adamson /* 436388034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 436488034c3dSAndy Adamson */ 436588034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 436688034c3dSAndy Adamson uint32_t *bitmap, 436788034c3dSAndy Adamson struct nfs4_threshold *res) 436888034c3dSAndy Adamson { 436988034c3dSAndy Adamson __be32 *p; 437088034c3dSAndy Adamson int status = 0; 437188034c3dSAndy Adamson uint32_t num; 437288034c3dSAndy Adamson 437388034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 437488034c3dSAndy Adamson return -EIO; 4375029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 43761549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 43771549210fSTrond Myklebust if (unlikely(res == NULL)) 43781549210fSTrond Myklebust return -EREMOTEIO; 437988034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 438088034c3dSAndy Adamson if (unlikely(!p)) 438188034c3dSAndy Adamson goto out_overflow; 438288034c3dSAndy Adamson num = be32_to_cpup(p); 438388034c3dSAndy Adamson if (num == 0) 438488034c3dSAndy Adamson return 0; 438588034c3dSAndy Adamson if (num > 1) 438688034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 438788034c3dSAndy Adamson "drivers per filesystem not supported\n", 438888034c3dSAndy Adamson __func__); 438988034c3dSAndy Adamson 439088034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4391029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 439288034c3dSAndy Adamson } 439388034c3dSAndy Adamson return status; 439488034c3dSAndy Adamson out_overflow: 439588034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 439688034c3dSAndy Adamson return -EIO; 439788034c3dSAndy Adamson } 439888034c3dSAndy Adamson 4399ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4400ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 44018b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 44026926afd1STrond Myklebust const struct nfs_server *server) 44031da177e4SLinus Torvalds { 4404bca79478STrond Myklebust int status; 4405bca79478STrond Myklebust umode_t fmode = 0; 4406ae42c70aSBryan Schumaker uint32_t type; 4407ee7b75fcSTrond Myklebust int32_t err; 44081da177e4SLinus Torvalds 4409f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4410f26c7a78STrond Myklebust if (status < 0) 44111da177e4SLinus Torvalds goto xdr_error; 4412409924e4STrond Myklebust fattr->mode = 0; 4413409924e4STrond Myklebust if (status != 0) { 4414409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4415409924e4STrond Myklebust fattr->valid |= status; 4416409924e4STrond Myklebust } 44171da177e4SLinus Torvalds 4418f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4419f26c7a78STrond Myklebust if (status < 0) 44201da177e4SLinus Torvalds goto xdr_error; 4421409924e4STrond Myklebust fattr->valid |= status; 4422f26c7a78STrond Myklebust 4423f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4424f26c7a78STrond Myklebust if (status < 0) 44251da177e4SLinus Torvalds goto xdr_error; 4426409924e4STrond Myklebust fattr->valid |= status; 4427f26c7a78STrond Myklebust 4428f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4429f26c7a78STrond Myklebust if (status < 0) 44301da177e4SLinus Torvalds goto xdr_error; 4431409924e4STrond Myklebust fattr->valid |= status; 4432f26c7a78STrond Myklebust 4433ee7b75fcSTrond Myklebust err = 0; 4434ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4435ae42c70aSBryan Schumaker if (status < 0) 4436ae42c70aSBryan Schumaker goto xdr_error; 4437ae42c70aSBryan Schumaker 4438ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4439ae42c70aSBryan Schumaker if (status < 0) 4440ae42c70aSBryan Schumaker goto xdr_error; 4441ae42c70aSBryan Schumaker 4442f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4443f26c7a78STrond Myklebust if (status < 0) 44441da177e4SLinus Torvalds goto xdr_error; 4445409924e4STrond Myklebust fattr->valid |= status; 4446f26c7a78STrond Myklebust 44478b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4448f26c7a78STrond Myklebust if (status < 0) 4449683b57b4STrond Myklebust goto xdr_error; 4450409924e4STrond Myklebust fattr->valid |= status; 4451f26c7a78STrond Myklebust 4452f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4453f26c7a78STrond Myklebust if (status < 0) 44541da177e4SLinus Torvalds goto xdr_error; 4455409924e4STrond Myklebust if (status != 0) { 44561da177e4SLinus Torvalds fattr->mode |= fmode; 4457409924e4STrond Myklebust fattr->valid |= status; 4458409924e4STrond Myklebust } 4459f26c7a78STrond Myklebust 4460f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4461f26c7a78STrond Myklebust if (status < 0) 44621da177e4SLinus Torvalds goto xdr_error; 4463409924e4STrond Myklebust fattr->valid |= status; 4464f26c7a78STrond Myklebust 44656926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4466f26c7a78STrond Myklebust if (status < 0) 44671da177e4SLinus Torvalds goto xdr_error; 4468409924e4STrond Myklebust fattr->valid |= status; 4469f26c7a78STrond Myklebust 44706926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4471f26c7a78STrond Myklebust if (status < 0) 44721da177e4SLinus Torvalds goto xdr_error; 4473409924e4STrond Myklebust fattr->valid |= status; 4474f26c7a78STrond Myklebust 4475f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4476f26c7a78STrond Myklebust if (status < 0) 44771da177e4SLinus Torvalds goto xdr_error; 4478409924e4STrond Myklebust fattr->valid |= status; 4479f26c7a78STrond Myklebust 4480f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4481f26c7a78STrond Myklebust if (status < 0) 44821da177e4SLinus Torvalds goto xdr_error; 4483409924e4STrond Myklebust fattr->valid |= status; 4484f26c7a78STrond Myklebust 4485f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4486f26c7a78STrond Myklebust if (status < 0) 44871da177e4SLinus Torvalds goto xdr_error; 4488409924e4STrond Myklebust fattr->valid |= status; 4489f26c7a78STrond Myklebust 4490f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4491f26c7a78STrond Myklebust if (status < 0) 44921da177e4SLinus Torvalds goto xdr_error; 4493409924e4STrond Myklebust fattr->valid |= status; 4494f26c7a78STrond Myklebust 4495f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4496f26c7a78STrond Myklebust if (status < 0) 44971da177e4SLinus Torvalds goto xdr_error; 4498409924e4STrond Myklebust fattr->valid |= status; 4499f26c7a78STrond Myklebust 450028331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4501f26c7a78STrond Myklebust if (status < 0) 450299baf625SManoj Naik goto xdr_error; 4503409924e4STrond Myklebust fattr->valid |= status; 4504f26c7a78STrond Myklebust 450588034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 450688034c3dSAndy Adamson if (status < 0) 450788034c3dSAndy Adamson goto xdr_error; 450888034c3dSAndy Adamson 4509ae42c70aSBryan Schumaker xdr_error: 4510ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4511ae42c70aSBryan Schumaker return status; 4512ae42c70aSBryan Schumaker } 4513ae42c70aSBryan Schumaker 4514ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45158b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 45168b7e3f49STrond Myklebust const struct nfs_server *server) 4517ae42c70aSBryan Schumaker { 4518256e48bbSTrond Myklebust unsigned int savep; 4519ae42c70aSBryan Schumaker uint32_t attrlen, 4520dae100c2SFred Isaman bitmap[3] = {0}; 4521ae42c70aSBryan Schumaker int status; 4522ae42c70aSBryan Schumaker 4523ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4524ae42c70aSBryan Schumaker if (status < 0) 4525ae42c70aSBryan Schumaker goto xdr_error; 4526ae42c70aSBryan Schumaker 4527ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4528ae42c70aSBryan Schumaker if (status < 0) 4529ae42c70aSBryan Schumaker goto xdr_error; 4530ae42c70aSBryan Schumaker 4531ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4532ae42c70aSBryan Schumaker if (status < 0) 4533ae42c70aSBryan Schumaker goto xdr_error; 4534ae42c70aSBryan Schumaker 45358b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4536ae42c70aSBryan Schumaker if (status < 0) 4537ae42c70aSBryan Schumaker goto xdr_error; 4538ae42c70aSBryan Schumaker 4539f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 45401da177e4SLinus Torvalds xdr_error: 45413110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 45421da177e4SLinus Torvalds return status; 45431da177e4SLinus Torvalds } 45441da177e4SLinus Torvalds 4545ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45466926afd1STrond Myklebust const struct nfs_server *server) 4547ae42c70aSBryan Schumaker { 45488b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4549ae42c70aSBryan Schumaker } 45501da177e4SLinus Torvalds 4551504913fbSAndy Adamson /* 4552504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4553504913fbSAndy Adamson * one layout driver per file system. 4554504913fbSAndy Adamson */ 4555504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4556504913fbSAndy Adamson uint32_t *layouttype) 4557504913fbSAndy Adamson { 4558504913fbSAndy Adamson uint32_t *p; 4559504913fbSAndy Adamson int num; 4560504913fbSAndy Adamson 4561504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4562504913fbSAndy Adamson if (unlikely(!p)) 4563504913fbSAndy Adamson goto out_overflow; 4564504913fbSAndy Adamson num = be32_to_cpup(p); 4565504913fbSAndy Adamson 4566504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4567504913fbSAndy Adamson if (num == 0) { 4568504913fbSAndy Adamson *layouttype = 0; 4569504913fbSAndy Adamson return 0; 4570504913fbSAndy Adamson } 4571504913fbSAndy Adamson if (num > 1) 4572a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4573a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4574504913fbSAndy Adamson 4575504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4576504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4577504913fbSAndy Adamson if (unlikely(!p)) 4578504913fbSAndy Adamson goto out_overflow; 4579504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4580504913fbSAndy Adamson return 0; 4581504913fbSAndy Adamson out_overflow: 4582504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4583504913fbSAndy Adamson return -EIO; 4584504913fbSAndy Adamson } 4585504913fbSAndy Adamson 4586504913fbSAndy Adamson /* 4587504913fbSAndy Adamson * The type of file system exported. 4588504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4589504913fbSAndy Adamson */ 4590504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4591504913fbSAndy Adamson uint32_t *layouttype) 4592504913fbSAndy Adamson { 4593504913fbSAndy Adamson int status = 0; 4594504913fbSAndy Adamson 4595504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4596504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4597504913fbSAndy Adamson return -EIO; 4598504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4599504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4600504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4601504913fbSAndy Adamson } else 4602504913fbSAndy Adamson *layouttype = 0; 4603504913fbSAndy Adamson return status; 4604504913fbSAndy Adamson } 4605504913fbSAndy Adamson 4606dae100c2SFred Isaman /* 4607dae100c2SFred Isaman * The prefered block size for layout directed io 4608dae100c2SFred Isaman */ 4609dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4610dae100c2SFred Isaman uint32_t *res) 4611dae100c2SFred Isaman { 4612dae100c2SFred Isaman __be32 *p; 4613dae100c2SFred Isaman 4614dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4615dae100c2SFred Isaman *res = 0; 4616dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4617dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4618dae100c2SFred Isaman if (unlikely(!p)) { 4619dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4620dae100c2SFred Isaman return -EIO; 4621dae100c2SFred Isaman } 4622dae100c2SFred Isaman *res = be32_to_cpup(p); 4623dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4624dae100c2SFred Isaman } 4625dae100c2SFred Isaman return 0; 4626dae100c2SFred Isaman } 4627dae100c2SFred Isaman 46281da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 46291da177e4SLinus Torvalds { 4630256e48bbSTrond Myklebust unsigned int savep; 4631dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 46321da177e4SLinus Torvalds int status; 46331da177e4SLinus Torvalds 46341da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 46351da177e4SLinus Torvalds goto xdr_error; 46361da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 46371da177e4SLinus Torvalds goto xdr_error; 46381da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 46391da177e4SLinus Torvalds goto xdr_error; 46401da177e4SLinus Torvalds 46411da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 46421da177e4SLinus Torvalds 46431da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 46441da177e4SLinus Torvalds goto xdr_error; 46451da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 46461da177e4SLinus Torvalds goto xdr_error; 46471da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 46481da177e4SLinus Torvalds goto xdr_error; 46491da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 46501da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 46511da177e4SLinus Torvalds goto xdr_error; 46521da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 465355b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 465455b6e774SRicardo Labiaga if (status != 0) 465555b6e774SRicardo Labiaga goto xdr_error; 4656504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4657504913fbSAndy Adamson if (status != 0) 4658504913fbSAndy Adamson goto xdr_error; 4659dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4660dae100c2SFred Isaman if (status) 4661dae100c2SFred Isaman goto xdr_error; 46621da177e4SLinus Torvalds 46631da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46641da177e4SLinus Torvalds xdr_error: 46653110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46661da177e4SLinus Torvalds return status; 46671da177e4SLinus Torvalds } 46681da177e4SLinus Torvalds 46691da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46701da177e4SLinus Torvalds { 46718687b63aSAl Viro __be32 *p; 46721da177e4SLinus Torvalds uint32_t len; 46731da177e4SLinus Torvalds int status; 46741da177e4SLinus Torvalds 46759936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46769936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46779936781dSTrond Myklebust 46781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46791da177e4SLinus Torvalds if (status) 46801da177e4SLinus Torvalds return status; 46811da177e4SLinus Torvalds 4682c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4683c0eae66eSBenny Halevy if (unlikely(!p)) 4684c0eae66eSBenny Halevy goto out_overflow; 4685cccddf4fSBenny Halevy len = be32_to_cpup(p); 46861da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46871da177e4SLinus Torvalds return -EIO; 46881da177e4SLinus Torvalds fh->size = len; 4689c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4690c0eae66eSBenny Halevy if (unlikely(!p)) 4691c0eae66eSBenny Halevy goto out_overflow; 469299398d06SBenny Halevy memcpy(fh->data, p, len); 46931da177e4SLinus Torvalds return 0; 4694c0eae66eSBenny Halevy out_overflow: 4695c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4696c0eae66eSBenny Halevy return -EIO; 46971da177e4SLinus Torvalds } 46981da177e4SLinus Torvalds 46991da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 47001da177e4SLinus Torvalds { 47011da177e4SLinus Torvalds int status; 47021da177e4SLinus Torvalds 47031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 47041da177e4SLinus Torvalds if (status) 47051da177e4SLinus Torvalds return status; 47061da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 47071da177e4SLinus Torvalds } 47081da177e4SLinus Torvalds 47091da177e4SLinus Torvalds /* 47101da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 47111da177e4SLinus Torvalds */ 4712911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 47131da177e4SLinus Torvalds { 4714911d1aafSTrond Myklebust uint64_t offset, length, clientid; 47158687b63aSAl Viro __be32 *p; 4716911d1aafSTrond Myklebust uint32_t namelen, type; 47171da177e4SLinus Torvalds 4718babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4719c0eae66eSBenny Halevy if (unlikely(!p)) 4720c0eae66eSBenny Halevy goto out_overflow; 4721babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 47223ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4723babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4724babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4725911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4726911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4727911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4728911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4729911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4730911d1aafSTrond Myklebust if (type & 1) 4731911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4732911d1aafSTrond Myklebust fl->fl_pid = 0; 4733911d1aafSTrond Myklebust } 4734babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4735babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4736babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4737c0eae66eSBenny Halevy if (likely(p)) 47381da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4739c0eae66eSBenny Halevy out_overflow: 4740c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4741c0eae66eSBenny Halevy return -EIO; 47421da177e4SLinus Torvalds } 47431da177e4SLinus Torvalds 4744911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 47451da177e4SLinus Torvalds { 47461da177e4SLinus Torvalds int status; 47471da177e4SLinus Torvalds 47481da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4749c1d51931STrond Myklebust if (status == -EIO) 4750c1d51931STrond Myklebust goto out; 47511da177e4SLinus Torvalds if (status == 0) { 475207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 475307d30434SBenny Halevy if (unlikely(status)) 475407d30434SBenny Halevy goto out; 47551da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4756c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4757c1d51931STrond Myklebust if (res->open_seqid != NULL) 4758c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4759c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4760c1d51931STrond Myklebust out: 47611da177e4SLinus Torvalds return status; 47621da177e4SLinus Torvalds } 47631da177e4SLinus Torvalds 4764911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47651da177e4SLinus Torvalds { 47661da177e4SLinus Torvalds int status; 47671da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47681da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4769911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47701da177e4SLinus Torvalds return status; 47711da177e4SLinus Torvalds } 47721da177e4SLinus Torvalds 4773911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47741da177e4SLinus Torvalds { 47751da177e4SLinus Torvalds int status; 47761da177e4SLinus Torvalds 47771da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4778c1d51931STrond Myklebust if (status != -EIO) 4779c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 478007d30434SBenny Halevy if (status == 0) 478107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47821da177e4SLinus Torvalds return status; 47831da177e4SLinus Torvalds } 47841da177e4SLinus Torvalds 4785d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4786d3c7b7ccSTrond Myklebust { 4787d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4788d3c7b7ccSTrond Myklebust } 4789d3c7b7ccSTrond Myklebust 47901da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47911da177e4SLinus Torvalds { 47921da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47931da177e4SLinus Torvalds } 47941da177e4SLinus Torvalds 47951da177e4SLinus Torvalds /* This is too sick! */ 47961da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47971da177e4SLinus Torvalds { 47988687b63aSAl Viro __be32 *p; 47991da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 48001da177e4SLinus Torvalds 4801c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4802c0eae66eSBenny Halevy if (unlikely(!p)) 4803c0eae66eSBenny Halevy goto out_overflow; 48046f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 48051da177e4SLinus Torvalds switch (limit_type) { 48061da177e4SLinus Torvalds case 1: 4807cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 48081da177e4SLinus Torvalds break; 48091da177e4SLinus Torvalds case 2: 48106f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4811cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 48121da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 48131da177e4SLinus Torvalds } 48141da177e4SLinus Torvalds return 0; 4815c0eae66eSBenny Halevy out_overflow: 4816c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4817c0eae66eSBenny Halevy return -EIO; 48181da177e4SLinus Torvalds } 48191da177e4SLinus Torvalds 48201da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 48211da177e4SLinus Torvalds { 48228687b63aSAl Viro __be32 *p; 48231da177e4SLinus Torvalds uint32_t delegation_type; 482407d30434SBenny Halevy int status; 48251da177e4SLinus Torvalds 4826c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4827c0eae66eSBenny Halevy if (unlikely(!p)) 4828c0eae66eSBenny Halevy goto out_overflow; 4829cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 48301da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 48311da177e4SLinus Torvalds res->delegation_type = 0; 48321da177e4SLinus Torvalds return 0; 48331da177e4SLinus Torvalds } 483407d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 483507d30434SBenny Halevy if (unlikely(status)) 483607d30434SBenny Halevy return status; 4837c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4838c0eae66eSBenny Halevy if (unlikely(!p)) 4839c0eae66eSBenny Halevy goto out_overflow; 4840cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 484105d564feSAndy Adamson 48421da177e4SLinus Torvalds switch (delegation_type) { 48431da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 48441da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 48451da177e4SLinus Torvalds break; 48461da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 48471da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 48481da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 48491da177e4SLinus Torvalds return -EIO; 48501da177e4SLinus Torvalds } 48517539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4852c0eae66eSBenny Halevy out_overflow: 4853c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4854c0eae66eSBenny Halevy return -EIO; 48551da177e4SLinus Torvalds } 48561da177e4SLinus Torvalds 48571da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 48581da177e4SLinus Torvalds { 48598687b63aSAl Viro __be32 *p; 4860aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 48611da177e4SLinus Torvalds int status; 48621da177e4SLinus Torvalds 48631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4864c1d51931STrond Myklebust if (status != -EIO) 4865c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 486607d30434SBenny Halevy if (!status) 486707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 486807d30434SBenny Halevy if (unlikely(status)) 48691da177e4SLinus Torvalds return status; 48701da177e4SLinus Torvalds 48711da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48721da177e4SLinus Torvalds 4873c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4874c0eae66eSBenny Halevy if (unlikely(!p)) 4875c0eae66eSBenny Halevy goto out_overflow; 48766f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4877cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48781da177e4SLinus Torvalds if (bmlen > 10) 48791da177e4SLinus Torvalds goto xdr_error; 48801da177e4SLinus Torvalds 4881c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4882c0eae66eSBenny Halevy if (unlikely(!p)) 4883c0eae66eSBenny Halevy goto out_overflow; 4884aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4885aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48866f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4887aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4888aa53ed54SJeff Layton res->attrset[i] = 0; 4889aa53ed54SJeff Layton 48901da177e4SLinus Torvalds return decode_delegation(xdr, res); 48911da177e4SLinus Torvalds xdr_error: 48923110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48931da177e4SLinus Torvalds return -EIO; 4894c0eae66eSBenny Halevy out_overflow: 4895c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4896c0eae66eSBenny Halevy return -EIO; 48971da177e4SLinus Torvalds } 48981da177e4SLinus Torvalds 48991da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 49001da177e4SLinus Torvalds { 49011da177e4SLinus Torvalds int status; 49021da177e4SLinus Torvalds 49031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 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_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 49121da177e4SLinus Torvalds { 49131da177e4SLinus Torvalds int status; 49141da177e4SLinus Torvalds 49151da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4916c1d51931STrond Myklebust if (status != -EIO) 4917c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 491807d30434SBenny Halevy if (!status) 491907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49201da177e4SLinus Torvalds return status; 49211da177e4SLinus Torvalds } 49221da177e4SLinus Torvalds 49231da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 49241da177e4SLinus Torvalds { 49251da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 49261da177e4SLinus Torvalds } 49271da177e4SLinus Torvalds 49281da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 49291da177e4SLinus Torvalds { 49301da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 49311da177e4SLinus Torvalds } 49321da177e4SLinus Torvalds 49331da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 49341da177e4SLinus Torvalds { 49358687b63aSAl Viro __be32 *p; 493664bd577eSTrond Myklebust uint32_t count, eof, recvd; 49371da177e4SLinus Torvalds int status; 49381da177e4SLinus Torvalds 49391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 49401da177e4SLinus Torvalds if (status) 49411da177e4SLinus Torvalds return status; 4942c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4943c0eae66eSBenny Halevy if (unlikely(!p)) 4944c0eae66eSBenny Halevy goto out_overflow; 49456f723f77SBenny Halevy eof = be32_to_cpup(p++); 4946cccddf4fSBenny Halevy count = be32_to_cpup(p); 494764bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 49481da177e4SLinus Torvalds if (count > recvd) { 4949fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 49501da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 49511da177e4SLinus Torvalds count = recvd; 49521da177e4SLinus Torvalds eof = 0; 49531da177e4SLinus Torvalds } 49541da177e4SLinus Torvalds res->eof = eof; 49551da177e4SLinus Torvalds res->count = count; 49561da177e4SLinus Torvalds return 0; 4957c0eae66eSBenny Halevy out_overflow: 4958c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4959c0eae66eSBenny Halevy return -EIO; 49601da177e4SLinus Torvalds } 49611da177e4SLinus Torvalds 49621da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 49631da177e4SLinus Torvalds { 4964bcecff77SChuck Lever int status; 4965cd93710eSChuck Lever __be32 verf[2]; 49661da177e4SLinus Torvalds 49671da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4968db942bbdSBenny Halevy if (!status) 4969db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4970db942bbdSBenny Halevy if (unlikely(status)) 49711da177e4SLinus Torvalds return status; 4972cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 497344109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 4974cd93710eSChuck Lever __func__, verf[0], verf[1]); 497564bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 49761da177e4SLinus Torvalds } 49771da177e4SLinus Torvalds 49781da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49791da177e4SLinus Torvalds { 49801da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 4981bcecff77SChuck Lever u32 len, recvd; 49828687b63aSAl Viro __be32 *p; 49831da177e4SLinus Torvalds int status; 49841da177e4SLinus Torvalds 49851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49861da177e4SLinus Torvalds if (status) 49871da177e4SLinus Torvalds return status; 49881da177e4SLinus Torvalds 49891da177e4SLinus Torvalds /* Convert length of symlink */ 4990c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4991c0eae66eSBenny Halevy if (unlikely(!p)) 4992c0eae66eSBenny Halevy goto out_overflow; 4993cccddf4fSBenny Halevy len = be32_to_cpup(p); 49941da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4995fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49961da177e4SLinus Torvalds return -ENAMETOOLONG; 49971da177e4SLinus Torvalds } 499864bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 49991da177e4SLinus Torvalds if (recvd < len) { 5000fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 50011da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 50021da177e4SLinus Torvalds return -EIO; 50031da177e4SLinus Torvalds } 50041da177e4SLinus Torvalds /* 50051da177e4SLinus Torvalds * The XDR encode routine has set things up so that 50061da177e4SLinus Torvalds * the link text will be copied directly into the 50071da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 50081da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 50091da177e4SLinus Torvalds * null-termination). 50101da177e4SLinus Torvalds */ 5011b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 50121da177e4SLinus Torvalds return 0; 5013c0eae66eSBenny Halevy out_overflow: 5014c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5015c0eae66eSBenny Halevy return -EIO; 50161da177e4SLinus Torvalds } 50171da177e4SLinus Torvalds 50181da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 50191da177e4SLinus Torvalds { 50201da177e4SLinus Torvalds int status; 50211da177e4SLinus Torvalds 50221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 50231da177e4SLinus Torvalds if (status) 50241da177e4SLinus Torvalds goto out; 50251da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 50261da177e4SLinus Torvalds out: 50271da177e4SLinus Torvalds return status; 50281da177e4SLinus Torvalds } 50291da177e4SLinus Torvalds 50301da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 50311da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 50321da177e4SLinus Torvalds { 50331da177e4SLinus Torvalds int status; 50341da177e4SLinus Torvalds 50351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 50361da177e4SLinus Torvalds if (status) 50371da177e4SLinus Torvalds goto out; 50381da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 50391da177e4SLinus Torvalds goto out; 50401da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 50411da177e4SLinus Torvalds out: 50421da177e4SLinus Torvalds return status; 50431da177e4SLinus Torvalds } 50441da177e4SLinus Torvalds 50451da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50461da177e4SLinus Torvalds { 50471da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50481da177e4SLinus Torvalds } 50491da177e4SLinus Torvalds 505056ae19f3STrond Myklebust static int 505156ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 505256ae19f3STrond Myklebust { 505356ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 505456ae19f3STrond Myklebust } 505556ae19f3STrond Myklebust 5056029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5057bf118a34SAndy Adamson struct nfs_getaclres *res) 5058029d105eSJ. Bruce Fields { 5059256e48bbSTrond Myklebust unsigned int savep; 5060029d105eSJ. Bruce Fields uint32_t attrlen, 5061dae100c2SFred Isaman bitmap[3] = {0}; 5062029d105eSJ. Bruce Fields int status; 5063cff298c7STrond Myklebust unsigned int pg_offset; 5064029d105eSJ. Bruce Fields 5065bf118a34SAndy Adamson res->acl_len = 0; 5066029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5067029d105eSJ. Bruce Fields goto out; 50685a006899SSachin Prabhu 5069519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5070519d3959STrond Myklebust 5071cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5072cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 50735a006899SSachin Prabhu 5074029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5075029d105eSJ. Bruce Fields goto out; 5076029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5077029d105eSJ. Bruce Fields goto out; 5078029d105eSJ. Bruce Fields 5079029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5080029d105eSJ. Bruce Fields return -EIO; 5081029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5082029d105eSJ. Bruce Fields 5083bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5084bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5085bf118a34SAndy Adamson * variable length bitmaps.*/ 5086cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5087519d3959STrond Myklebust res->acl_len = attrlen; 50881f1ea6c2STrond Myklebust 50891f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 50901f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 50911f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 50921f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5093519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5094cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5095029d105eSJ. Bruce Fields } 50968c233cf9SJ. Bruce Fields } else 50978c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5098029d105eSJ. Bruce Fields 5099029d105eSJ. Bruce Fields out: 5100029d105eSJ. Bruce Fields return status; 5101029d105eSJ. Bruce Fields } 5102029d105eSJ. Bruce Fields 51031da177e4SLinus Torvalds static int 51041da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 51051da177e4SLinus Torvalds { 51061da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 51071da177e4SLinus Torvalds } 51081da177e4SLinus Torvalds 51099e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 51101da177e4SLinus Torvalds { 51118687b63aSAl Viro __be32 *p; 51121da177e4SLinus Torvalds uint32_t bmlen; 51131da177e4SLinus Torvalds int status; 51141da177e4SLinus Torvalds 51151da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 51161da177e4SLinus Torvalds if (status) 51171da177e4SLinus Torvalds return status; 5118c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5119c0eae66eSBenny Halevy if (unlikely(!p)) 5120c0eae66eSBenny Halevy goto out_overflow; 5121cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5122c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5123c0eae66eSBenny Halevy if (likely(p)) 51241da177e4SLinus Torvalds return 0; 5125c0eae66eSBenny Halevy out_overflow: 5126c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5127c0eae66eSBenny Halevy return -EIO; 51281da177e4SLinus Torvalds } 51291da177e4SLinus Torvalds 5130bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 51311da177e4SLinus Torvalds { 51328687b63aSAl Viro __be32 *p; 51331da177e4SLinus Torvalds uint32_t opnum; 51341da177e4SLinus Torvalds int32_t nfserr; 51351da177e4SLinus Torvalds 5136c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5137c0eae66eSBenny Halevy if (unlikely(!p)) 5138c0eae66eSBenny Halevy goto out_overflow; 51396f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51401da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5141fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51421da177e4SLinus Torvalds " %d\n", opnum); 51431da177e4SLinus Torvalds return -EIO; 51441da177e4SLinus Torvalds } 5145cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51461da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5147c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5148c0eae66eSBenny Halevy if (unlikely(!p)) 5149c0eae66eSBenny Halevy goto out_overflow; 5150bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5151bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51521da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51531da177e4SLinus Torvalds uint32_t len; 51541da177e4SLinus Torvalds 51551da177e4SLinus Torvalds /* skip netid string */ 5156c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5157c0eae66eSBenny Halevy if (unlikely(!p)) 5158c0eae66eSBenny Halevy goto out_overflow; 5159cccddf4fSBenny Halevy len = be32_to_cpup(p); 5160c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5161c0eae66eSBenny Halevy if (unlikely(!p)) 5162c0eae66eSBenny Halevy goto out_overflow; 51631da177e4SLinus Torvalds 51641da177e4SLinus Torvalds /* skip uaddr string */ 5165c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5166c0eae66eSBenny Halevy if (unlikely(!p)) 5167c0eae66eSBenny Halevy goto out_overflow; 5168cccddf4fSBenny Halevy len = be32_to_cpup(p); 5169c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5170c0eae66eSBenny Halevy if (unlikely(!p)) 5171c0eae66eSBenny Halevy goto out_overflow; 51721da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51731da177e4SLinus Torvalds } else 5174856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51751da177e4SLinus Torvalds 51761da177e4SLinus Torvalds return 0; 5177c0eae66eSBenny Halevy out_overflow: 5178c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5179c0eae66eSBenny Halevy return -EIO; 51801da177e4SLinus Torvalds } 51811da177e4SLinus Torvalds 51821da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51831da177e4SLinus Torvalds { 51841da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51851da177e4SLinus Torvalds } 51861da177e4SLinus Torvalds 51871da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51881da177e4SLinus Torvalds { 51898687b63aSAl Viro __be32 *p; 51901da177e4SLinus Torvalds int status; 51911da177e4SLinus Torvalds 51921da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51931da177e4SLinus Torvalds if (status) 51941da177e4SLinus Torvalds return status; 51951da177e4SLinus Torvalds 51962f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5197c0eae66eSBenny Halevy if (unlikely(!p)) 5198c0eae66eSBenny Halevy goto out_overflow; 51996f723f77SBenny Halevy res->count = be32_to_cpup(p++); 52006f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 52012f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5202c0eae66eSBenny Halevy out_overflow: 5203c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5204c0eae66eSBenny Halevy return -EIO; 52051da177e4SLinus Torvalds } 52061da177e4SLinus Torvalds 52071da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 52081da177e4SLinus Torvalds { 52091da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 52101da177e4SLinus Torvalds } 52111da177e4SLinus Torvalds 52125a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 52135a5ea0d4SBryan Schumaker { 52145a5ea0d4SBryan Schumaker __be32 *p; 52155a5ea0d4SBryan Schumaker 52165a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52175a5ea0d4SBryan Schumaker if (unlikely(!p)) 52185a5ea0d4SBryan Schumaker goto out_overflow; 52195a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 52205a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 52215a5ea0d4SBryan Schumaker goto out_err; 52225a5ea0d4SBryan Schumaker 52235a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 52245a5ea0d4SBryan Schumaker if (unlikely(!p)) 52255a5ea0d4SBryan Schumaker goto out_overflow; 52265a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 52275a5ea0d4SBryan Schumaker 52285a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 52295a5ea0d4SBryan Schumaker if (unlikely(!p)) 52305a5ea0d4SBryan Schumaker goto out_overflow; 52315a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 52325a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 52335a5ea0d4SBryan Schumaker 52345a5ea0d4SBryan Schumaker return 0; 52355a5ea0d4SBryan Schumaker 52365a5ea0d4SBryan Schumaker out_overflow: 52375a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52385a5ea0d4SBryan Schumaker return -EIO; 52395a5ea0d4SBryan Schumaker out_err: 52405a5ea0d4SBryan Schumaker return -EINVAL; 52415a5ea0d4SBryan Schumaker } 52425a5ea0d4SBryan Schumaker 524331e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52445a5ea0d4SBryan Schumaker { 52455a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 52465a5ea0d4SBryan Schumaker int status; 52475a5ea0d4SBryan Schumaker __be32 *p; 5248c3dfc280SBryan Schumaker int i, num_flavors; 52495a5ea0d4SBryan Schumaker 52505a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52515a5ea0d4SBryan Schumaker if (unlikely(!p)) 52525a5ea0d4SBryan Schumaker goto out_overflow; 52535a5ea0d4SBryan Schumaker 5254c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5255c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5256c3dfc280SBryan Schumaker 5257c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52585a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5259c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52605a5ea0d4SBryan Schumaker break; 52615a5ea0d4SBryan Schumaker 52625a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52635a5ea0d4SBryan Schumaker if (unlikely(!p)) 52645a5ea0d4SBryan Schumaker goto out_overflow; 52655a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52665a5ea0d4SBryan Schumaker 52675a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5268613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5269613e901eSBryan Schumaker if (status) 5270613e901eSBryan Schumaker goto out; 52715a5ea0d4SBryan Schumaker } 5272c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52735a5ea0d4SBryan Schumaker } 52745a5ea0d4SBryan Schumaker 527531e4dda4SBryan Schumaker status = 0; 5276613e901eSBryan Schumaker out: 5277613e901eSBryan Schumaker return status; 52785a5ea0d4SBryan Schumaker out_overflow: 52795a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52805a5ea0d4SBryan Schumaker return -EIO; 52815a5ea0d4SBryan Schumaker } 52825a5ea0d4SBryan Schumaker 528331e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 528431e4dda4SBryan Schumaker { 528531e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 528631e4dda4SBryan Schumaker if (status) 528731e4dda4SBryan Schumaker return status; 528831e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 528931e4dda4SBryan Schumaker } 529031e4dda4SBryan Schumaker 529199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 529231e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 529331e4dda4SBryan Schumaker { 529431e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 529531e4dda4SBryan Schumaker if (status) 529631e4dda4SBryan Schumaker return status; 529731e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 529831e4dda4SBryan Schumaker } 529931e4dda4SBryan Schumaker 530099fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 530199fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 530299fe60d0SBenny Halevy { 530399fe60d0SBenny Halevy __be32 *p; 530499fe60d0SBenny Halevy uint32_t dummy; 53052460ba57SBenny Halevy char *dummy_str; 530699fe60d0SBenny Halevy int status; 53077d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 530899fe60d0SBenny Halevy 530999fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 531099fe60d0SBenny Halevy if (status) 531199fe60d0SBenny Halevy return status; 531299fe60d0SBenny Halevy 5313c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5314c0eae66eSBenny Halevy if (unlikely(!p)) 5315c0eae66eSBenny Halevy goto out_overflow; 531632b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5317c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5318c0eae66eSBenny Halevy if (unlikely(!p)) 5319c0eae66eSBenny Halevy goto out_overflow; 532032b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 532132b01310STrond Myklebust res->flags = be32_to_cpup(p++); 532299fe60d0SBenny Halevy 532399fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5324cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 532599fe60d0SBenny Halevy if (dummy != SP4_NONE) 532699fe60d0SBenny Halevy return -EIO; 532799fe60d0SBenny Halevy 5328acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5329c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5330c0eae66eSBenny Halevy if (unlikely(!p)) 5331c0eae66eSBenny Halevy goto out_overflow; 5332acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 533399fe60d0SBenny Halevy 5334acdeb69dSChuck Lever /* server_owner4.so_major_id */ 53352460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53362460ba57SBenny Halevy if (unlikely(status)) 53372460ba57SBenny Halevy return status; 533878fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 533978fe0f41SWeston Andros Adamson return -EIO; 5340acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5341acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 534278fe0f41SWeston Andros Adamson 5343acdeb69dSChuck Lever /* server_scope4 */ 5344acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5345acdeb69dSChuck Lever if (unlikely(status)) 5346acdeb69dSChuck Lever return status; 5347acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5348acdeb69dSChuck Lever return -EIO; 534978fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 535078fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 535178fe0f41SWeston Andros Adamson 53527d2ed9acSWeston Andros Adamson /* Implementation Id */ 53537d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 53547d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53557d2ed9acSWeston Andros Adamson goto out_overflow; 53567d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 53577d2ed9acSWeston Andros Adamson 53587d2ed9acSWeston Andros Adamson if (impl_id_count) { 53597d2ed9acSWeston Andros Adamson /* nii_domain */ 53602460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53612460ba57SBenny Halevy if (unlikely(status)) 53622460ba57SBenny Halevy return status; 53637d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53647d2ed9acSWeston Andros Adamson return -EIO; 53657d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 536699fe60d0SBenny Halevy 53677d2ed9acSWeston Andros Adamson /* nii_name */ 53687d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53697d2ed9acSWeston Andros Adamson if (unlikely(status)) 53707d2ed9acSWeston Andros Adamson return status; 53717d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53727d2ed9acSWeston Andros Adamson return -EIO; 53737d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 53747d2ed9acSWeston Andros Adamson 53757d2ed9acSWeston Andros Adamson /* nii_date */ 53767d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 53777d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53787d2ed9acSWeston Andros Adamson goto out_overflow; 53797d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 53807d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 53817d2ed9acSWeston Andros Adamson 53827d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 53837d2ed9acSWeston Andros Adamson } 538499fe60d0SBenny Halevy return 0; 5385c0eae66eSBenny Halevy out_overflow: 5386c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5387c0eae66eSBenny Halevy return -EIO; 538899fe60d0SBenny Halevy } 5389fc931582SAndy Adamson 5390fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5391fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5392fc931582SAndy Adamson { 5393fc931582SAndy Adamson __be32 *p; 5394c9c30dd5SBenny Halevy u32 nr_attrs, val; 5395fc931582SAndy Adamson 5396c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5397c0eae66eSBenny Halevy if (unlikely(!p)) 5398c0eae66eSBenny Halevy goto out_overflow; 5399c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5400c9c30dd5SBenny Halevy if (val) 5401c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 54026f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 54036f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 54046f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 54056f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 54066f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5407cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5408fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5409a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5410a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5411fc931582SAndy Adamson return -EINVAL; 5412fc931582SAndy Adamson } 5413c0eae66eSBenny Halevy if (nr_attrs == 1) { 5414c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5415c0eae66eSBenny Halevy if (unlikely(!p)) 5416c0eae66eSBenny Halevy goto out_overflow; 5417c0eae66eSBenny Halevy } 5418fc931582SAndy Adamson return 0; 5419c0eae66eSBenny Halevy out_overflow: 5420c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5421c0eae66eSBenny Halevy return -EIO; 5422fc931582SAndy Adamson } 5423fc931582SAndy Adamson 5424e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5425e78291e4SBenny Halevy { 5426e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5427fc931582SAndy Adamson } 5428fc931582SAndy Adamson 54297c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 54307c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 54317c44f1aeSWeston Andros Adamson { 54327c44f1aeSWeston Andros Adamson __be32 *p; 54337c44f1aeSWeston Andros Adamson int status; 54347c44f1aeSWeston Andros Adamson 54357c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 54367c44f1aeSWeston Andros Adamson if (!status) 54377c44f1aeSWeston Andros Adamson status = decode_sessionid(xdr, &res->session->sess_id); 54387c44f1aeSWeston Andros Adamson if (unlikely(status)) 54397c44f1aeSWeston Andros Adamson return status; 54407c44f1aeSWeston Andros Adamson 54417c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 54427c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 54437c44f1aeSWeston Andros Adamson if (unlikely(!p)) 54447c44f1aeSWeston Andros Adamson goto out_overflow; 54457c44f1aeSWeston Andros Adamson 54467c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 54477c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 54487c44f1aeSWeston Andros Adamson return -EIO; 54497c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 54507c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 54517c44f1aeSWeston Andros Adamson else 54527c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 54537c44f1aeSWeston Andros Adamson 54547c44f1aeSWeston Andros Adamson return 0; 54557c44f1aeSWeston Andros Adamson out_overflow: 54567c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 54577c44f1aeSWeston Andros Adamson return -EIO; 54587c44f1aeSWeston Andros Adamson } 54597c44f1aeSWeston Andros Adamson 5460fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5461fc931582SAndy Adamson struct nfs41_create_session_res *res) 5462fc931582SAndy Adamson { 5463fc931582SAndy Adamson __be32 *p; 5464fc931582SAndy Adamson int status; 5465fc931582SAndy Adamson struct nfs_client *clp = res->client; 5466fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5467fc931582SAndy Adamson 5468fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5469e78291e4SBenny Halevy if (!status) 5470e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5471e78291e4SBenny Halevy if (unlikely(status)) 5472fc931582SAndy Adamson return status; 5473fc931582SAndy Adamson 5474fc931582SAndy Adamson /* seqid, flags */ 5475c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5476c0eae66eSBenny Halevy if (unlikely(!p)) 5477c0eae66eSBenny Halevy goto out_overflow; 54786f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5479cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5480fc931582SAndy Adamson 5481fc931582SAndy Adamson /* Channel attributes */ 5482fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5483fc931582SAndy Adamson if (!status) 5484fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5485fc931582SAndy Adamson return status; 5486c0eae66eSBenny Halevy out_overflow: 5487c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5488c0eae66eSBenny Halevy return -EIO; 5489fc931582SAndy Adamson } 54900f3e66c6SAndy Adamson 54910f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 54920f3e66c6SAndy Adamson { 54930f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 54940f3e66c6SAndy Adamson } 549518019753SRicardo Labiaga 549666245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 549766245539STrond Myklebust { 549866245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 549966245539STrond Myklebust } 550066245539STrond Myklebust 550118019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 550218019753SRicardo Labiaga { 550318019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 550418019753SRicardo Labiaga } 550599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 550699fe60d0SBenny Halevy 55079b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 55089b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 55099b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 55109b7b9fccSAndy Adamson { 55119b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5512fc01cea9SAndy Adamson struct nfs4_sessionid id; 5513fc01cea9SAndy Adamson u32 dummy; 5514fc01cea9SAndy Adamson int status; 5515fc01cea9SAndy Adamson __be32 *p; 5516fc01cea9SAndy Adamson 55179b7b9fccSAndy Adamson if (!res->sr_session) 55189b7b9fccSAndy Adamson return 0; 55199b7b9fccSAndy Adamson 5520fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5521e78291e4SBenny Halevy if (!status) 5522e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5523e78291e4SBenny Halevy if (unlikely(status)) 5524fc01cea9SAndy Adamson goto out_err; 55259b7b9fccSAndy Adamson 5526fc01cea9SAndy Adamson /* 5527fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5528fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5529fc01cea9SAndy Adamson */ 5530fdcb4577STrond Myklebust status = -EREMOTEIO; 5531fc01cea9SAndy Adamson 5532fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 5533fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5534fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5535fc01cea9SAndy Adamson goto out_err; 5536fc01cea9SAndy Adamson } 5537e78291e4SBenny Halevy 5538c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5539c0eae66eSBenny Halevy if (unlikely(!p)) 5540c0eae66eSBenny Halevy goto out_overflow; 5541e78291e4SBenny Halevy 5542fc01cea9SAndy Adamson /* seqid */ 55436f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5544dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5545fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5546fc01cea9SAndy Adamson goto out_err; 5547fc01cea9SAndy Adamson } 5548fc01cea9SAndy Adamson /* slot id */ 55496f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5550dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 5551fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5552fc01cea9SAndy Adamson goto out_err; 5553fc01cea9SAndy Adamson } 5554fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 55556f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5556fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 55576f723f77SBenny Halevy dummy = be32_to_cpup(p++); 55580629e370SAlexandros Batsakis /* result flags */ 55590629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5560fc01cea9SAndy Adamson status = 0; 5561fc01cea9SAndy Adamson out_err: 5562fc01cea9SAndy Adamson res->sr_status = status; 5563fc01cea9SAndy Adamson return status; 5564c0eae66eSBenny Halevy out_overflow: 5565c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5566c0eae66eSBenny Halevy status = -EIO; 5567c0eae66eSBenny Halevy goto out_err; 5568fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 55699b7b9fccSAndy Adamson return 0; 5570fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 55719b7b9fccSAndy Adamson } 55729b7b9fccSAndy Adamson 5573b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 55747f11d8d3SAndy Adamson /* 55757f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 55767f11d8d3SAndy Adamson */ 55777f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 55787f11d8d3SAndy Adamson struct pnfs_devicelist *res) 55797f11d8d3SAndy Adamson { 55807f11d8d3SAndy Adamson __be32 *p; 55817f11d8d3SAndy Adamson int status, i; 558298d94524STrond Myklebust nfs4_verifier verftemp; 55837f11d8d3SAndy Adamson 55847f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 55857f11d8d3SAndy Adamson if (status) 55867f11d8d3SAndy Adamson return status; 55877f11d8d3SAndy Adamson 55887f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 55897f11d8d3SAndy Adamson if (unlikely(!p)) 55907f11d8d3SAndy Adamson goto out_overflow; 55917f11d8d3SAndy Adamson 55927f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 55937f11d8d3SAndy Adamson p += 2; 55947f11d8d3SAndy Adamson 55957f11d8d3SAndy Adamson /* Read verifier */ 559698d94524STrond Myklebust p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE); 55977f11d8d3SAndy Adamson 55987f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 55997f11d8d3SAndy Adamson 56007f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 56017f11d8d3SAndy Adamson 56027f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5603a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 56047f11d8d3SAndy Adamson __func__, res->num_devs); 56057f11d8d3SAndy Adamson return -EIO; 56067f11d8d3SAndy Adamson } 56077f11d8d3SAndy Adamson 56087f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 56097f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 56107f11d8d3SAndy Adamson if (unlikely(!p)) 56117f11d8d3SAndy Adamson goto out_overflow; 56127f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 56137f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 56147f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 56157f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 56167f11d8d3SAndy Adamson return 0; 56177f11d8d3SAndy Adamson out_overflow: 56187f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 56197f11d8d3SAndy Adamson return -EIO; 56207f11d8d3SAndy Adamson } 5621b1f69b75SAndy Adamson 5622b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5623b1f69b75SAndy Adamson struct pnfs_device *pdev) 5624b1f69b75SAndy Adamson { 5625b1f69b75SAndy Adamson __be32 *p; 5626b1f69b75SAndy Adamson uint32_t len, type; 5627b1f69b75SAndy Adamson int status; 5628b1f69b75SAndy Adamson 5629b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5630b1f69b75SAndy Adamson if (status) { 5631b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5632b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5633b1f69b75SAndy Adamson if (unlikely(!p)) 5634b1f69b75SAndy Adamson goto out_overflow; 5635b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5636b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5637b1f69b75SAndy Adamson __func__, pdev->mincount); 5638b1f69b75SAndy Adamson } 5639b1f69b75SAndy Adamson return status; 5640b1f69b75SAndy Adamson } 5641b1f69b75SAndy Adamson 5642b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5643b1f69b75SAndy Adamson if (unlikely(!p)) 5644b1f69b75SAndy Adamson goto out_overflow; 5645b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5646b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5647b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5648b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5649b1f69b75SAndy Adamson return -EINVAL; 5650b1f69b75SAndy Adamson } 5651b1f69b75SAndy Adamson /* 5652b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5653b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5654b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5655b1f69b75SAndy Adamson */ 5656b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 565713fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 565813fe4ba1STrond Myklebust goto out_overflow; 5659b1f69b75SAndy Adamson 5660b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5661b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5662b1f69b75SAndy Adamson if (unlikely(!p)) 5663b1f69b75SAndy Adamson goto out_overflow; 5664b1f69b75SAndy Adamson len = be32_to_cpup(p); 5665b1f69b75SAndy Adamson if (len) { 5666ead00597SChuck Lever uint32_t i; 5667b1f69b75SAndy Adamson 5668b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5669b1f69b75SAndy Adamson if (unlikely(!p)) 5670b1f69b75SAndy Adamson goto out_overflow; 5671b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5672b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5673b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5674b1f69b75SAndy Adamson __func__); 5675b1f69b75SAndy Adamson return -EIO; 5676b1f69b75SAndy Adamson } 5677b1f69b75SAndy Adamson } 5678b1f69b75SAndy Adamson } 5679b1f69b75SAndy Adamson return 0; 5680b1f69b75SAndy Adamson out_overflow: 5681b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5682b1f69b75SAndy Adamson return -EIO; 5683b1f69b75SAndy Adamson } 5684b1f69b75SAndy Adamson 5685b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5686b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5687b1f69b75SAndy Adamson { 5688b1f69b75SAndy Adamson __be32 *p; 5689b1f69b75SAndy Adamson int status; 5690b1f69b75SAndy Adamson u32 layout_count; 569164bd577eSTrond Myklebust u32 recvd; 5692b1f69b75SAndy Adamson 5693b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5694b1f69b75SAndy Adamson if (status) 5695b1f69b75SAndy Adamson return status; 5696ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5697b1f69b75SAndy Adamson if (unlikely(!p)) 5698b1f69b75SAndy Adamson goto out_overflow; 5699ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5700ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5701ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5702ea9d23f5STrond Myklebust if (unlikely(!p)) 5703ea9d23f5STrond Myklebust goto out_overflow; 5704b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5705b1f69b75SAndy Adamson if (!layout_count) { 5706b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5707b1f69b75SAndy Adamson __func__); 5708b1f69b75SAndy Adamson return -EINVAL; 5709b1f69b75SAndy Adamson } 5710b1f69b75SAndy Adamson 571135124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5712b1f69b75SAndy Adamson if (unlikely(!p)) 5713b1f69b75SAndy Adamson goto out_overflow; 5714b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5715b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5716b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5717b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 571835124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5719b1f69b75SAndy Adamson 5720b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5721b1f69b75SAndy Adamson __func__, 5722b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5723b1f69b75SAndy Adamson (unsigned long)res->range.length, 5724b1f69b75SAndy Adamson res->range.iomode, 5725b1f69b75SAndy Adamson res->type, 572635124a09SWeston Andros Adamson res->layoutp->len); 5727b1f69b75SAndy Adamson 572864bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 572935124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 573035124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 573135124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 573235124a09SWeston Andros Adamson res->layoutp->len, recvd); 573335124a09SWeston Andros Adamson return -EINVAL; 573435124a09SWeston Andros Adamson } 573535124a09SWeston Andros Adamson 5736b1f69b75SAndy Adamson if (layout_count > 1) { 5737b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5738b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5739b1f69b75SAndy Adamson * the client may see a response that is less than the 5740b1f69b75SAndy Adamson * minimum it requested. 5741b1f69b75SAndy Adamson */ 5742b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5743b1f69b75SAndy Adamson __func__, layout_count); 5744b1f69b75SAndy Adamson } 5745b1f69b75SAndy Adamson 5746b1f69b75SAndy Adamson return 0; 5747b1f69b75SAndy Adamson out_overflow: 5748b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5749b1f69b75SAndy Adamson return -EIO; 5750b1f69b75SAndy Adamson } 5751863a3c6cSAndy Adamson 5752cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5753cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5754cbe82603SBenny Halevy { 5755cbe82603SBenny Halevy __be32 *p; 5756cbe82603SBenny Halevy int status; 5757cbe82603SBenny Halevy 5758cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5759cbe82603SBenny Halevy if (status) 5760cbe82603SBenny Halevy return status; 5761cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5762cbe82603SBenny Halevy if (unlikely(!p)) 5763cbe82603SBenny Halevy goto out_overflow; 5764cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5765cbe82603SBenny Halevy if (res->lrs_present) 5766cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5767cbe82603SBenny Halevy return status; 5768cbe82603SBenny Halevy out_overflow: 5769cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5770cbe82603SBenny Halevy return -EIO; 5771cbe82603SBenny Halevy } 5772cbe82603SBenny Halevy 5773863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5774863a3c6cSAndy Adamson struct rpc_rqst *req, 5775863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5776863a3c6cSAndy Adamson { 5777863a3c6cSAndy Adamson __be32 *p; 5778863a3c6cSAndy Adamson __u32 sizechanged; 5779863a3c6cSAndy Adamson int status; 5780863a3c6cSAndy Adamson 5781863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5782db29c089SAndy Adamson res->status = status; 5783863a3c6cSAndy Adamson if (status) 5784863a3c6cSAndy Adamson return status; 5785863a3c6cSAndy Adamson 5786863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5787863a3c6cSAndy Adamson if (unlikely(!p)) 5788863a3c6cSAndy Adamson goto out_overflow; 5789863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5790863a3c6cSAndy Adamson 5791863a3c6cSAndy Adamson if (sizechanged) { 5792863a3c6cSAndy Adamson /* throw away new size */ 5793863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5794863a3c6cSAndy Adamson if (unlikely(!p)) 5795863a3c6cSAndy Adamson goto out_overflow; 5796863a3c6cSAndy Adamson } 5797863a3c6cSAndy Adamson return 0; 5798863a3c6cSAndy Adamson out_overflow: 5799863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5800863a3c6cSAndy Adamson return -EIO; 5801863a3c6cSAndy Adamson } 58027d974794SBryan Schumaker 58037d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 58047d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 58057d974794SBryan Schumaker { 58067d974794SBryan Schumaker __be32 *p; 58077d974794SBryan Schumaker int status; 58087d974794SBryan Schumaker int num_res; 58097d974794SBryan Schumaker 58107d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 58117d974794SBryan Schumaker if (status) 58127d974794SBryan Schumaker return status; 58137d974794SBryan Schumaker 58147d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58157d974794SBryan Schumaker if (unlikely(!p)) 58167d974794SBryan Schumaker goto out_overflow; 58177d974794SBryan Schumaker num_res = be32_to_cpup(p++); 58187d974794SBryan Schumaker if (num_res != 1) 58197d974794SBryan Schumaker goto out; 58207d974794SBryan Schumaker 58217d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58227d974794SBryan Schumaker if (unlikely(!p)) 58237d974794SBryan Schumaker goto out_overflow; 58247d974794SBryan Schumaker res->status = be32_to_cpup(p++); 58251cab0652SBryan Schumaker 58261cab0652SBryan Schumaker return status; 58277d974794SBryan Schumaker out_overflow: 58287d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 58297d974794SBryan Schumaker out: 58307d974794SBryan Schumaker return -EIO; 58317d974794SBryan Schumaker } 58329aeda35fSBryan Schumaker 58339aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 58349aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 58359aeda35fSBryan Schumaker { 58369aeda35fSBryan Schumaker __be32 *p; 58379aeda35fSBryan Schumaker int status; 58389aeda35fSBryan Schumaker 58399aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 58409aeda35fSBryan Schumaker if (status) 58419aeda35fSBryan Schumaker return status; 58429aeda35fSBryan Schumaker 58439aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 58449aeda35fSBryan Schumaker if (unlikely(!p)) 58459aeda35fSBryan Schumaker goto out_overflow; 58469aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 58479aeda35fSBryan Schumaker return res->status; 58489aeda35fSBryan Schumaker out_overflow: 58499aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 58509aeda35fSBryan Schumaker return -EIO; 58519aeda35fSBryan Schumaker } 5852b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5853b1f69b75SAndy Adamson 58541da177e4SLinus Torvalds /* 585549c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 585649c2559eSBenny Halevy */ 585749c2559eSBenny Halevy 585849c2559eSBenny Halevy /* 58591da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 58601da177e4SLinus Torvalds */ 5861bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5862bf269551SChuck Lever struct xdr_stream *xdr, 5863bf269551SChuck Lever struct nfs_closeres *res) 58641da177e4SLinus Torvalds { 58651da177e4SLinus Torvalds struct compound_hdr hdr; 58661da177e4SLinus Torvalds int status; 58671da177e4SLinus Torvalds 5868bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58691da177e4SLinus Torvalds if (status) 58701da177e4SLinus Torvalds goto out; 5871bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58729b7b9fccSAndy Adamson if (status) 58739b7b9fccSAndy Adamson goto out; 5874bf269551SChuck Lever status = decode_putfh(xdr); 58751da177e4SLinus Torvalds if (status) 58761da177e4SLinus Torvalds goto out; 5877bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5878516a6af6STrond Myklebust if (status != 0) 5879516a6af6STrond Myklebust goto out; 58806926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58811da177e4SLinus Torvalds out: 58821da177e4SLinus Torvalds return status; 58831da177e4SLinus Torvalds } 58841da177e4SLinus Torvalds 58851da177e4SLinus Torvalds /* 58861da177e4SLinus Torvalds * Decode ACCESS response 58871da177e4SLinus Torvalds */ 5888bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5889bf269551SChuck Lever struct nfs4_accessres *res) 58901da177e4SLinus Torvalds { 58911da177e4SLinus Torvalds struct compound_hdr hdr; 58921da177e4SLinus Torvalds int status; 58931da177e4SLinus Torvalds 5894bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58959b7b9fccSAndy Adamson if (status) 58969b7b9fccSAndy Adamson goto out; 5897bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58989b7b9fccSAndy Adamson if (status) 58991da177e4SLinus Torvalds goto out; 5900bf269551SChuck Lever status = decode_putfh(xdr); 590176b32999STrond Myklebust if (status != 0) 590276b32999STrond Myklebust goto out; 59036168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 590476b32999STrond Myklebust if (status != 0) 590576b32999STrond Myklebust goto out; 59066926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 59071da177e4SLinus Torvalds out: 59081da177e4SLinus Torvalds return status; 59091da177e4SLinus Torvalds } 59101da177e4SLinus Torvalds 59111da177e4SLinus Torvalds /* 59121da177e4SLinus Torvalds * Decode LOOKUP response 59131da177e4SLinus Torvalds */ 5914bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5915bf269551SChuck Lever struct nfs4_lookup_res *res) 59161da177e4SLinus Torvalds { 59171da177e4SLinus Torvalds struct compound_hdr hdr; 59181da177e4SLinus Torvalds int status; 59191da177e4SLinus Torvalds 5920bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59219b7b9fccSAndy Adamson if (status) 59229b7b9fccSAndy Adamson goto out; 5923bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59249b7b9fccSAndy Adamson if (status) 59251da177e4SLinus Torvalds goto out; 5926bf269551SChuck Lever status = decode_putfh(xdr); 5927bf269551SChuck Lever if (status) 59281da177e4SLinus Torvalds goto out; 5929bf269551SChuck Lever status = decode_lookup(xdr); 5930bf269551SChuck Lever if (status) 59311da177e4SLinus Torvalds goto out; 5932bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5933bf269551SChuck Lever if (status) 59341da177e4SLinus Torvalds goto out; 59356926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59361da177e4SLinus Torvalds out: 59371da177e4SLinus Torvalds return status; 59381da177e4SLinus Torvalds } 59391da177e4SLinus Torvalds 59401da177e4SLinus Torvalds /* 59411da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 59421da177e4SLinus Torvalds */ 5943bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5944bf269551SChuck Lever struct xdr_stream *xdr, 5945bf269551SChuck Lever struct nfs4_lookup_res *res) 59461da177e4SLinus Torvalds { 59471da177e4SLinus Torvalds struct compound_hdr hdr; 59481da177e4SLinus Torvalds int status; 59491da177e4SLinus Torvalds 5950bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59519b7b9fccSAndy Adamson if (status) 59529b7b9fccSAndy Adamson goto out; 5953bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59549b7b9fccSAndy Adamson if (status) 59551da177e4SLinus Torvalds goto out; 5956bf269551SChuck Lever status = decode_putrootfh(xdr); 5957bf269551SChuck Lever if (status) 59581da177e4SLinus Torvalds goto out; 5959bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5960bf269551SChuck Lever if (status == 0) 59616926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59621da177e4SLinus Torvalds out: 59631da177e4SLinus Torvalds return status; 59641da177e4SLinus Torvalds } 59651da177e4SLinus Torvalds 59661da177e4SLinus Torvalds /* 59671da177e4SLinus Torvalds * Decode REMOVE response 59681da177e4SLinus Torvalds */ 5969bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5970bf269551SChuck Lever struct nfs_removeres *res) 59711da177e4SLinus Torvalds { 59721da177e4SLinus Torvalds struct compound_hdr hdr; 59731da177e4SLinus Torvalds int status; 59741da177e4SLinus Torvalds 5975bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59769b7b9fccSAndy Adamson if (status) 59779b7b9fccSAndy Adamson goto out; 5978bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59799b7b9fccSAndy Adamson if (status) 59801da177e4SLinus Torvalds goto out; 5981bf269551SChuck Lever status = decode_putfh(xdr); 5982bf269551SChuck Lever if (status) 598316e42959STrond Myklebust goto out; 5984bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 59851da177e4SLinus Torvalds out: 59861da177e4SLinus Torvalds return status; 59871da177e4SLinus Torvalds } 59881da177e4SLinus Torvalds 59891da177e4SLinus Torvalds /* 59901da177e4SLinus Torvalds * Decode RENAME response 59911da177e4SLinus Torvalds */ 5992bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5993bf269551SChuck Lever struct nfs_renameres *res) 59941da177e4SLinus Torvalds { 59951da177e4SLinus Torvalds struct compound_hdr hdr; 59961da177e4SLinus Torvalds int status; 59971da177e4SLinus Torvalds 5998bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59999b7b9fccSAndy Adamson if (status) 60009b7b9fccSAndy Adamson goto out; 6001bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60029b7b9fccSAndy Adamson if (status) 60031da177e4SLinus Torvalds goto out; 6004bf269551SChuck Lever status = decode_putfh(xdr); 6005bf269551SChuck Lever if (status) 60061da177e4SLinus Torvalds goto out; 6007bf269551SChuck Lever status = decode_savefh(xdr); 6008bf269551SChuck Lever if (status) 60091da177e4SLinus Torvalds goto out; 6010bf269551SChuck Lever status = decode_putfh(xdr); 6011bf269551SChuck Lever if (status) 60121da177e4SLinus Torvalds goto out; 6013bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 60141da177e4SLinus Torvalds out: 60151da177e4SLinus Torvalds return status; 60161da177e4SLinus Torvalds } 60171da177e4SLinus Torvalds 60181da177e4SLinus Torvalds /* 60191da177e4SLinus Torvalds * Decode LINK response 60201da177e4SLinus Torvalds */ 6021bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6022bf269551SChuck Lever struct nfs4_link_res *res) 60231da177e4SLinus Torvalds { 60241da177e4SLinus Torvalds struct compound_hdr hdr; 60251da177e4SLinus Torvalds int status; 60261da177e4SLinus Torvalds 6027bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60289b7b9fccSAndy Adamson if (status) 60299b7b9fccSAndy Adamson goto out; 6030bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60319b7b9fccSAndy Adamson if (status) 60321da177e4SLinus Torvalds goto out; 6033bf269551SChuck Lever status = decode_putfh(xdr); 6034bf269551SChuck Lever if (status) 60351da177e4SLinus Torvalds goto out; 6036bf269551SChuck Lever status = decode_savefh(xdr); 6037bf269551SChuck Lever if (status) 60381da177e4SLinus Torvalds goto out; 6039bf269551SChuck Lever status = decode_putfh(xdr); 6040bf269551SChuck Lever if (status) 60411da177e4SLinus Torvalds goto out; 6042bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6043bf269551SChuck Lever if (status) 604491ba2eeeSTrond Myklebust goto out; 604591ba2eeeSTrond Myklebust /* 604691ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 604791ba2eeeSTrond Myklebust * filehandle. 604891ba2eeeSTrond Myklebust */ 6049bf269551SChuck Lever status = decode_restorefh(xdr); 6050bf269551SChuck Lever if (status) 605191ba2eeeSTrond Myklebust goto out; 60526926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60531da177e4SLinus Torvalds out: 60541da177e4SLinus Torvalds return status; 60551da177e4SLinus Torvalds } 60561da177e4SLinus Torvalds 60571da177e4SLinus Torvalds /* 60581da177e4SLinus Torvalds * Decode CREATE response 60591da177e4SLinus Torvalds */ 6060bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6061bf269551SChuck Lever struct nfs4_create_res *res) 60621da177e4SLinus Torvalds { 60631da177e4SLinus Torvalds struct compound_hdr hdr; 60641da177e4SLinus Torvalds int status; 60651da177e4SLinus Torvalds 6066bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60679b7b9fccSAndy Adamson if (status) 60689b7b9fccSAndy Adamson goto out; 6069bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60709b7b9fccSAndy Adamson if (status) 60711da177e4SLinus Torvalds goto out; 6072bf269551SChuck Lever status = decode_putfh(xdr); 6073bf269551SChuck Lever if (status) 60741da177e4SLinus Torvalds goto out; 6075bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6076bf269551SChuck Lever if (status) 60771da177e4SLinus Torvalds goto out; 6078bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6079bf269551SChuck Lever if (status) 60801da177e4SLinus Torvalds goto out; 60817c317fcfSTrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60821da177e4SLinus Torvalds out: 60831da177e4SLinus Torvalds return status; 60841da177e4SLinus Torvalds } 60851da177e4SLinus Torvalds 60861da177e4SLinus Torvalds /* 60871da177e4SLinus Torvalds * Decode SYMLINK response 60881da177e4SLinus Torvalds */ 6089bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6090bf269551SChuck Lever struct nfs4_create_res *res) 60911da177e4SLinus Torvalds { 6092bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60931da177e4SLinus Torvalds } 60941da177e4SLinus Torvalds 60951da177e4SLinus Torvalds /* 60961da177e4SLinus Torvalds * Decode GETATTR response 60971da177e4SLinus Torvalds */ 6098bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6099bf269551SChuck Lever struct nfs4_getattr_res *res) 61001da177e4SLinus Torvalds { 61011da177e4SLinus Torvalds struct compound_hdr hdr; 61021da177e4SLinus Torvalds int status; 61031da177e4SLinus Torvalds 6104bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61051da177e4SLinus Torvalds if (status) 61061da177e4SLinus Torvalds goto out; 6107bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61089b7b9fccSAndy Adamson if (status) 61099b7b9fccSAndy Adamson goto out; 6110bf269551SChuck Lever status = decode_putfh(xdr); 61111da177e4SLinus Torvalds if (status) 61121da177e4SLinus Torvalds goto out; 61136926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 61141da177e4SLinus Torvalds out: 61151da177e4SLinus Torvalds return status; 61161da177e4SLinus Torvalds } 61171da177e4SLinus Torvalds 611823ec6965SJ. Bruce Fields /* 611923ec6965SJ. Bruce Fields * Encode an SETACL request 612023ec6965SJ. Bruce Fields */ 61219f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 61229f06c719SChuck Lever struct nfs_setaclargs *args) 612323ec6965SJ. Bruce Fields { 612423ec6965SJ. Bruce Fields struct compound_hdr hdr = { 612566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 612623ec6965SJ. Bruce Fields }; 612723ec6965SJ. Bruce Fields 61289f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 61299f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 61309f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 61319f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6132d017931cSAndy Adamson encode_nops(&hdr); 613323ec6965SJ. Bruce Fields } 613405d564feSAndy Adamson 613523ec6965SJ. Bruce Fields /* 613623ec6965SJ. Bruce Fields * Decode SETACL response 613723ec6965SJ. Bruce Fields */ 613823ec6965SJ. Bruce Fields static int 6139bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 614073c403a9SBenny Halevy struct nfs_setaclres *res) 614123ec6965SJ. Bruce Fields { 614223ec6965SJ. Bruce Fields struct compound_hdr hdr; 614323ec6965SJ. Bruce Fields int status; 614423ec6965SJ. Bruce Fields 6145bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 614623ec6965SJ. Bruce Fields if (status) 614723ec6965SJ. Bruce Fields goto out; 6148bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61499b7b9fccSAndy Adamson if (status) 61509b7b9fccSAndy Adamson goto out; 6151bf269551SChuck Lever status = decode_putfh(xdr); 615223ec6965SJ. Bruce Fields if (status) 615323ec6965SJ. Bruce Fields goto out; 6154bf269551SChuck Lever status = decode_setattr(xdr); 615523ec6965SJ. Bruce Fields out: 615623ec6965SJ. Bruce Fields return status; 615723ec6965SJ. Bruce Fields } 61581da177e4SLinus Torvalds 61591da177e4SLinus Torvalds /* 6160029d105eSJ. Bruce Fields * Decode GETACL response 6161029d105eSJ. Bruce Fields */ 6162029d105eSJ. Bruce Fields static int 6163bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6164663c79b3SBenny Halevy struct nfs_getaclres *res) 6165029d105eSJ. Bruce Fields { 6166029d105eSJ. Bruce Fields struct compound_hdr hdr; 6167029d105eSJ. Bruce Fields int status; 6168029d105eSJ. Bruce Fields 6169331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6170331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6171331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6172331818f1STrond Myklebust } 6173bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6174029d105eSJ. Bruce Fields if (status) 6175029d105eSJ. Bruce Fields goto out; 6176bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61779b7b9fccSAndy Adamson if (status) 61789b7b9fccSAndy Adamson goto out; 6179bf269551SChuck Lever status = decode_putfh(xdr); 6180029d105eSJ. Bruce Fields if (status) 6181029d105eSJ. Bruce Fields goto out; 6182bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6183029d105eSJ. Bruce Fields 6184029d105eSJ. Bruce Fields out: 6185029d105eSJ. Bruce Fields return status; 6186029d105eSJ. Bruce Fields } 6187029d105eSJ. Bruce Fields 6188029d105eSJ. Bruce Fields /* 61891da177e4SLinus Torvalds * Decode CLOSE response 61901da177e4SLinus Torvalds */ 6191bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6192bf269551SChuck Lever struct nfs_closeres *res) 61931da177e4SLinus Torvalds { 61941da177e4SLinus Torvalds struct compound_hdr hdr; 61951da177e4SLinus Torvalds int status; 61961da177e4SLinus Torvalds 6197bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61981da177e4SLinus Torvalds if (status) 61991da177e4SLinus Torvalds goto out; 6200bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62019b7b9fccSAndy Adamson if (status) 62029b7b9fccSAndy Adamson goto out; 6203bf269551SChuck Lever status = decode_putfh(xdr); 62041da177e4SLinus Torvalds if (status) 62051da177e4SLinus Torvalds goto out; 6206bf269551SChuck Lever status = decode_close(xdr, res); 6207516a6af6STrond Myklebust if (status != 0) 6208516a6af6STrond Myklebust goto out; 6209516a6af6STrond Myklebust /* 6210516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6211516a6af6STrond Myklebust * in which case the getattr call will fail with 6212516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6213516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6214516a6af6STrond Myklebust */ 62156926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62161da177e4SLinus Torvalds out: 62171da177e4SLinus Torvalds return status; 62181da177e4SLinus Torvalds } 62191da177e4SLinus Torvalds 62201da177e4SLinus Torvalds /* 62211da177e4SLinus Torvalds * Decode OPEN response 62221da177e4SLinus Torvalds */ 6223bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6224bf269551SChuck Lever struct nfs_openres *res) 62251da177e4SLinus Torvalds { 62261da177e4SLinus Torvalds struct compound_hdr hdr; 62271da177e4SLinus Torvalds int status; 62281da177e4SLinus Torvalds 6229bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62301da177e4SLinus Torvalds if (status) 62311da177e4SLinus Torvalds goto out; 6232bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62339b7b9fccSAndy Adamson if (status) 62349b7b9fccSAndy Adamson goto out; 6235bf269551SChuck Lever status = decode_putfh(xdr); 62361da177e4SLinus Torvalds if (status) 62371da177e4SLinus Torvalds goto out; 6238bf269551SChuck Lever status = decode_open(xdr, res); 62391da177e4SLinus Torvalds if (status) 62401da177e4SLinus Torvalds goto out; 624101913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 624201913b49SWeston Andros Adamson if (status) 62431da177e4SLinus Torvalds goto out; 6244ae2bb032SWeston Andros Adamson if (res->access_request) 62456168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 624690ff0c54STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62471da177e4SLinus Torvalds out: 62481da177e4SLinus Torvalds return status; 62491da177e4SLinus Torvalds } 62501da177e4SLinus Torvalds 62511da177e4SLinus Torvalds /* 62521da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 62531da177e4SLinus Torvalds */ 6254bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6255bf269551SChuck Lever struct xdr_stream *xdr, 6256bf269551SChuck Lever struct nfs_open_confirmres *res) 62571da177e4SLinus Torvalds { 62581da177e4SLinus Torvalds struct compound_hdr hdr; 62591da177e4SLinus Torvalds int status; 62601da177e4SLinus Torvalds 6261bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62621da177e4SLinus Torvalds if (status) 62631da177e4SLinus Torvalds goto out; 6264bf269551SChuck Lever status = decode_putfh(xdr); 62651da177e4SLinus Torvalds if (status) 62661da177e4SLinus Torvalds goto out; 6267bf269551SChuck Lever status = decode_open_confirm(xdr, res); 62681da177e4SLinus Torvalds out: 62691da177e4SLinus Torvalds return status; 62701da177e4SLinus Torvalds } 62711da177e4SLinus Torvalds 62721da177e4SLinus Torvalds /* 62731da177e4SLinus Torvalds * Decode OPEN response 62741da177e4SLinus Torvalds */ 6275bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6276bf269551SChuck Lever struct xdr_stream *xdr, 6277bf269551SChuck Lever struct nfs_openres *res) 62781da177e4SLinus Torvalds { 62791da177e4SLinus Torvalds struct compound_hdr hdr; 62801da177e4SLinus Torvalds int status; 62811da177e4SLinus Torvalds 6282bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62831da177e4SLinus Torvalds if (status) 62841da177e4SLinus Torvalds goto out; 6285bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62869b7b9fccSAndy Adamson if (status) 62879b7b9fccSAndy Adamson goto out; 6288bf269551SChuck Lever status = decode_putfh(xdr); 62891da177e4SLinus Torvalds if (status) 62901da177e4SLinus Torvalds goto out; 6291bf269551SChuck Lever status = decode_open(xdr, res); 6292864472e9STrond Myklebust if (status) 6293864472e9STrond Myklebust goto out; 6294ae2bb032SWeston Andros Adamson if (res->access_request) 62956168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 62966926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62971da177e4SLinus Torvalds out: 62981da177e4SLinus Torvalds return status; 62991da177e4SLinus Torvalds } 63001da177e4SLinus Torvalds 63011da177e4SLinus Torvalds /* 63021da177e4SLinus Torvalds * Decode SETATTR response 63031da177e4SLinus Torvalds */ 6304bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6305bf269551SChuck Lever struct xdr_stream *xdr, 6306bf269551SChuck Lever struct nfs_setattrres *res) 63071da177e4SLinus Torvalds { 63081da177e4SLinus Torvalds struct compound_hdr hdr; 63091da177e4SLinus Torvalds int status; 63101da177e4SLinus Torvalds 6311bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63121da177e4SLinus Torvalds if (status) 63131da177e4SLinus Torvalds goto out; 6314bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63159b7b9fccSAndy Adamson if (status) 63169b7b9fccSAndy Adamson goto out; 6317bf269551SChuck Lever status = decode_putfh(xdr); 63181da177e4SLinus Torvalds if (status) 63191da177e4SLinus Torvalds goto out; 6320bf269551SChuck Lever status = decode_setattr(xdr); 63211da177e4SLinus Torvalds if (status) 63221da177e4SLinus Torvalds goto out; 63236926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63241da177e4SLinus Torvalds out: 63251da177e4SLinus Torvalds return status; 63261da177e4SLinus Torvalds } 63271da177e4SLinus Torvalds 63281da177e4SLinus Torvalds /* 63291da177e4SLinus Torvalds * Decode LOCK response 63301da177e4SLinus Torvalds */ 6331bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6332bf269551SChuck Lever struct nfs_lock_res *res) 63331da177e4SLinus Torvalds { 63341da177e4SLinus Torvalds struct compound_hdr hdr; 63351da177e4SLinus Torvalds int status; 63361da177e4SLinus Torvalds 6337bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63381da177e4SLinus Torvalds if (status) 63391da177e4SLinus Torvalds goto out; 6340bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63419b7b9fccSAndy Adamson if (status) 63429b7b9fccSAndy Adamson goto out; 6343bf269551SChuck Lever status = decode_putfh(xdr); 63441da177e4SLinus Torvalds if (status) 63451da177e4SLinus Torvalds goto out; 6346bf269551SChuck Lever status = decode_lock(xdr, res); 63471da177e4SLinus Torvalds out: 63481da177e4SLinus Torvalds return status; 63491da177e4SLinus Torvalds } 63501da177e4SLinus Torvalds 63511da177e4SLinus Torvalds /* 63521da177e4SLinus Torvalds * Decode LOCKT response 63531da177e4SLinus Torvalds */ 6354bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6355bf269551SChuck Lever struct nfs_lockt_res *res) 63561da177e4SLinus Torvalds { 63571da177e4SLinus Torvalds struct compound_hdr hdr; 63581da177e4SLinus Torvalds int status; 63591da177e4SLinus Torvalds 6360bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63611da177e4SLinus Torvalds if (status) 63621da177e4SLinus Torvalds goto out; 6363bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63649b7b9fccSAndy Adamson if (status) 63659b7b9fccSAndy Adamson goto out; 6366bf269551SChuck Lever status = decode_putfh(xdr); 63671da177e4SLinus Torvalds if (status) 63681da177e4SLinus Torvalds goto out; 6369bf269551SChuck Lever status = decode_lockt(xdr, res); 63701da177e4SLinus Torvalds out: 63711da177e4SLinus Torvalds return status; 63721da177e4SLinus Torvalds } 63731da177e4SLinus Torvalds 63741da177e4SLinus Torvalds /* 63751da177e4SLinus Torvalds * Decode LOCKU response 63761da177e4SLinus Torvalds */ 6377bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6378bf269551SChuck Lever struct nfs_locku_res *res) 63791da177e4SLinus Torvalds { 63801da177e4SLinus Torvalds struct compound_hdr hdr; 63811da177e4SLinus Torvalds int status; 63821da177e4SLinus Torvalds 6383bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63841da177e4SLinus Torvalds if (status) 63851da177e4SLinus Torvalds goto out; 6386bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63879b7b9fccSAndy Adamson if (status) 63889b7b9fccSAndy Adamson goto out; 6389bf269551SChuck Lever status = decode_putfh(xdr); 63901da177e4SLinus Torvalds if (status) 63911da177e4SLinus Torvalds goto out; 6392bf269551SChuck Lever status = decode_locku(xdr, res); 63931da177e4SLinus Torvalds out: 63941da177e4SLinus Torvalds return status; 63951da177e4SLinus Torvalds } 63961da177e4SLinus Torvalds 6397bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6398bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6399d3c7b7ccSTrond Myklebust { 6400d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6401d3c7b7ccSTrond Myklebust int status; 6402d3c7b7ccSTrond Myklebust 6403bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6404d3c7b7ccSTrond Myklebust if (!status) 6405bf269551SChuck Lever status = decode_release_lockowner(xdr); 6406d3c7b7ccSTrond Myklebust return status; 6407d3c7b7ccSTrond Myklebust } 6408d3c7b7ccSTrond Myklebust 64091da177e4SLinus Torvalds /* 64101da177e4SLinus Torvalds * Decode READLINK response 64111da177e4SLinus Torvalds */ 6412bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6413bf269551SChuck Lever struct xdr_stream *xdr, 6414f50c7000SBenny Halevy struct nfs4_readlink_res *res) 64151da177e4SLinus Torvalds { 64161da177e4SLinus Torvalds struct compound_hdr hdr; 64171da177e4SLinus Torvalds int status; 64181da177e4SLinus Torvalds 6419bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64201da177e4SLinus Torvalds if (status) 64211da177e4SLinus Torvalds goto out; 6422bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64239b7b9fccSAndy Adamson if (status) 64249b7b9fccSAndy Adamson goto out; 6425bf269551SChuck Lever status = decode_putfh(xdr); 64261da177e4SLinus Torvalds if (status) 64271da177e4SLinus Torvalds goto out; 6428bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 64291da177e4SLinus Torvalds out: 64301da177e4SLinus Torvalds return status; 64311da177e4SLinus Torvalds } 64321da177e4SLinus Torvalds 64331da177e4SLinus Torvalds /* 64341da177e4SLinus Torvalds * Decode READDIR response 64351da177e4SLinus Torvalds */ 6436bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6437bf269551SChuck Lever struct nfs4_readdir_res *res) 64381da177e4SLinus Torvalds { 64391da177e4SLinus Torvalds struct compound_hdr hdr; 64401da177e4SLinus Torvalds int status; 64411da177e4SLinus Torvalds 6442bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64431da177e4SLinus Torvalds if (status) 64441da177e4SLinus Torvalds goto out; 6445bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64469b7b9fccSAndy Adamson if (status) 64479b7b9fccSAndy Adamson goto out; 6448bf269551SChuck Lever status = decode_putfh(xdr); 64491da177e4SLinus Torvalds if (status) 64501da177e4SLinus Torvalds goto out; 6451bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 64521da177e4SLinus Torvalds out: 64531da177e4SLinus Torvalds return status; 64541da177e4SLinus Torvalds } 64551da177e4SLinus Torvalds 64561da177e4SLinus Torvalds /* 64571da177e4SLinus Torvalds * Decode Read response 64581da177e4SLinus Torvalds */ 6459bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6460bf269551SChuck Lever struct nfs_readres *res) 64611da177e4SLinus Torvalds { 64621da177e4SLinus Torvalds struct compound_hdr hdr; 64631da177e4SLinus Torvalds int status; 64641da177e4SLinus Torvalds 6465bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64661da177e4SLinus Torvalds if (status) 64671da177e4SLinus Torvalds goto out; 6468bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64699b7b9fccSAndy Adamson if (status) 64709b7b9fccSAndy Adamson goto out; 6471bf269551SChuck Lever status = decode_putfh(xdr); 64721da177e4SLinus Torvalds if (status) 64731da177e4SLinus Torvalds goto out; 6474bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 64751da177e4SLinus Torvalds if (!status) 64761da177e4SLinus Torvalds status = res->count; 64771da177e4SLinus Torvalds out: 64781da177e4SLinus Torvalds return status; 64791da177e4SLinus Torvalds } 64801da177e4SLinus Torvalds 64811da177e4SLinus Torvalds /* 64821da177e4SLinus Torvalds * Decode WRITE response 64831da177e4SLinus Torvalds */ 6484bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6485bf269551SChuck Lever struct nfs_writeres *res) 64861da177e4SLinus Torvalds { 64871da177e4SLinus Torvalds struct compound_hdr hdr; 64881da177e4SLinus Torvalds int status; 64891da177e4SLinus Torvalds 6490bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64911da177e4SLinus Torvalds if (status) 64921da177e4SLinus Torvalds goto out; 6493bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64949b7b9fccSAndy Adamson if (status) 64959b7b9fccSAndy Adamson goto out; 6496bf269551SChuck Lever status = decode_putfh(xdr); 64971da177e4SLinus Torvalds if (status) 64981da177e4SLinus Torvalds goto out; 6499bf269551SChuck Lever status = decode_write(xdr, res); 65004f9838c7STrond Myklebust if (status) 65014f9838c7STrond Myklebust goto out; 65027ffd1064SFred Isaman if (res->fattr) 65036926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 65041da177e4SLinus Torvalds if (!status) 65051da177e4SLinus Torvalds status = res->count; 65061da177e4SLinus Torvalds out: 65071da177e4SLinus Torvalds return status; 65081da177e4SLinus Torvalds } 65091da177e4SLinus Torvalds 65101da177e4SLinus Torvalds /* 65111da177e4SLinus Torvalds * Decode COMMIT response 65121da177e4SLinus Torvalds */ 6513bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 65140b7c0153SFred Isaman struct nfs_commitres *res) 65151da177e4SLinus Torvalds { 65161da177e4SLinus Torvalds struct compound_hdr hdr; 65171da177e4SLinus Torvalds int status; 65181da177e4SLinus Torvalds 6519bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65201da177e4SLinus Torvalds if (status) 65211da177e4SLinus Torvalds goto out; 6522bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65239b7b9fccSAndy Adamson if (status) 65249b7b9fccSAndy Adamson goto out; 6525bf269551SChuck Lever status = decode_putfh(xdr); 65261da177e4SLinus Torvalds if (status) 65271da177e4SLinus Torvalds goto out; 6528bf269551SChuck Lever status = decode_commit(xdr, res); 65291da177e4SLinus Torvalds out: 65301da177e4SLinus Torvalds return status; 65311da177e4SLinus Torvalds } 65321da177e4SLinus Torvalds 65331da177e4SLinus Torvalds /* 65348b173218SRicardo Labiaga * Decode FSINFO response 65351da177e4SLinus Torvalds */ 6536bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 65373dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 65381da177e4SLinus Torvalds { 65391da177e4SLinus Torvalds struct compound_hdr hdr; 65401da177e4SLinus Torvalds int status; 65411da177e4SLinus Torvalds 6542bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65431da177e4SLinus Torvalds if (!status) 6544bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65459b7b9fccSAndy Adamson if (!status) 6546bf269551SChuck Lever status = decode_putfh(xdr); 65471da177e4SLinus Torvalds if (!status) 6548bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 65491da177e4SLinus Torvalds return status; 65501da177e4SLinus Torvalds } 65511da177e4SLinus Torvalds 65521da177e4SLinus Torvalds /* 65538b173218SRicardo Labiaga * Decode PATHCONF response 65541da177e4SLinus Torvalds */ 6555bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6556d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 65571da177e4SLinus Torvalds { 65581da177e4SLinus Torvalds struct compound_hdr hdr; 65591da177e4SLinus Torvalds int status; 65601da177e4SLinus Torvalds 6561bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65621da177e4SLinus Torvalds if (!status) 6563bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65649b7b9fccSAndy Adamson if (!status) 6565bf269551SChuck Lever status = decode_putfh(xdr); 65661da177e4SLinus Torvalds if (!status) 6567bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 65681da177e4SLinus Torvalds return status; 65691da177e4SLinus Torvalds } 65701da177e4SLinus Torvalds 65711da177e4SLinus Torvalds /* 65728b173218SRicardo Labiaga * Decode STATFS response 65731da177e4SLinus Torvalds */ 6574bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 657524ad148aSBenny Halevy struct nfs4_statfs_res *res) 65761da177e4SLinus Torvalds { 65771da177e4SLinus Torvalds struct compound_hdr hdr; 65781da177e4SLinus Torvalds int status; 65791da177e4SLinus Torvalds 6580bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65811da177e4SLinus Torvalds if (!status) 6582bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65839b7b9fccSAndy Adamson if (!status) 6584bf269551SChuck Lever status = decode_putfh(xdr); 65851da177e4SLinus Torvalds if (!status) 6586bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 65871da177e4SLinus Torvalds return status; 65881da177e4SLinus Torvalds } 65891da177e4SLinus Torvalds 65901da177e4SLinus Torvalds /* 65918b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65921da177e4SLinus Torvalds */ 6593bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6594bf269551SChuck Lever struct xdr_stream *xdr, 6595bf269551SChuck Lever struct nfs4_server_caps_res *res) 65961da177e4SLinus Torvalds { 65971da177e4SLinus Torvalds struct compound_hdr hdr; 65981da177e4SLinus Torvalds int status; 65991da177e4SLinus Torvalds 6600bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66019b7b9fccSAndy Adamson if (status) 66029b7b9fccSAndy Adamson goto out; 6603bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66049b7b9fccSAndy Adamson if (status) 66051da177e4SLinus Torvalds goto out; 6606bf269551SChuck Lever status = decode_putfh(xdr); 6607bf269551SChuck Lever if (status) 66081da177e4SLinus Torvalds goto out; 6609bf269551SChuck Lever status = decode_server_caps(xdr, res); 66101da177e4SLinus Torvalds out: 66111da177e4SLinus Torvalds return status; 66121da177e4SLinus Torvalds } 66131da177e4SLinus Torvalds 66141da177e4SLinus Torvalds /* 66151da177e4SLinus Torvalds * Decode RENEW response 66161da177e4SLinus Torvalds */ 6617bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6618bf269551SChuck Lever void *__unused) 66191da177e4SLinus Torvalds { 66201da177e4SLinus Torvalds struct compound_hdr hdr; 66211da177e4SLinus Torvalds int status; 66221da177e4SLinus Torvalds 6623bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66241da177e4SLinus Torvalds if (!status) 6625bf269551SChuck Lever status = decode_renew(xdr); 66261da177e4SLinus Torvalds return status; 66271da177e4SLinus Torvalds } 66281da177e4SLinus Torvalds 66291da177e4SLinus Torvalds /* 66308b173218SRicardo Labiaga * Decode SETCLIENTID response 66311da177e4SLinus Torvalds */ 6632bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6633bf269551SChuck Lever struct xdr_stream *xdr, 6634bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 66351da177e4SLinus Torvalds { 66361da177e4SLinus Torvalds struct compound_hdr hdr; 66371da177e4SLinus Torvalds int status; 66381da177e4SLinus Torvalds 6639bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66401da177e4SLinus Torvalds if (!status) 6641bf269551SChuck Lever status = decode_setclientid(xdr, res); 66421da177e4SLinus Torvalds return status; 66431da177e4SLinus Torvalds } 66441da177e4SLinus Torvalds 66451da177e4SLinus Torvalds /* 66468b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 66471da177e4SLinus Torvalds */ 6648bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6649bf269551SChuck Lever struct xdr_stream *xdr, 6650bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 66511da177e4SLinus Torvalds { 66521da177e4SLinus Torvalds struct compound_hdr hdr; 66531da177e4SLinus Torvalds int status; 66541da177e4SLinus Torvalds 6655bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66561da177e4SLinus Torvalds if (!status) 6657bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 66581da177e4SLinus Torvalds if (!status) 6659bf269551SChuck Lever status = decode_putrootfh(xdr); 66601da177e4SLinus Torvalds if (!status) 6661bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 66621da177e4SLinus Torvalds return status; 66631da177e4SLinus Torvalds } 66641da177e4SLinus Torvalds 66651da177e4SLinus Torvalds /* 66668b173218SRicardo Labiaga * Decode DELEGRETURN response 66671da177e4SLinus Torvalds */ 6668bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6669bf269551SChuck Lever struct xdr_stream *xdr, 6670bf269551SChuck Lever struct nfs4_delegreturnres *res) 66711da177e4SLinus Torvalds { 66721da177e4SLinus Torvalds struct compound_hdr hdr; 66731da177e4SLinus Torvalds int status; 66741da177e4SLinus Torvalds 6675bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66769b7b9fccSAndy Adamson if (status) 66779b7b9fccSAndy Adamson goto out; 6678bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66799b7b9fccSAndy Adamson if (status) 6680fa178f29STrond Myklebust goto out; 6681bf269551SChuck Lever status = decode_putfh(xdr); 6682fa178f29STrond Myklebust if (status != 0) 6683fa178f29STrond Myklebust goto out; 6684e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6685556ae3bbSJeff Layton if (status != 0) 6686556ae3bbSJeff Layton goto out; 6687e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6688fa178f29STrond Myklebust out: 66891da177e4SLinus Torvalds return status; 66901da177e4SLinus Torvalds } 66911da177e4SLinus Torvalds 6692683b57b4STrond Myklebust /* 66938b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6694683b57b4STrond Myklebust */ 6695bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6696bf269551SChuck Lever struct xdr_stream *xdr, 669722958463SBenny Halevy struct nfs4_fs_locations_res *res) 6698683b57b4STrond Myklebust { 6699683b57b4STrond Myklebust struct compound_hdr hdr; 6700683b57b4STrond Myklebust int status; 6701683b57b4STrond Myklebust 6702bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67039b7b9fccSAndy Adamson if (status) 67049b7b9fccSAndy Adamson goto out; 6705bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67069b7b9fccSAndy Adamson if (status) 6707683b57b4STrond Myklebust goto out; 6708bf269551SChuck Lever status = decode_putfh(xdr); 6709bf269551SChuck Lever if (status) 6710683b57b4STrond Myklebust goto out; 6711bf269551SChuck Lever status = decode_lookup(xdr); 6712bf269551SChuck Lever if (status) 6713683b57b4STrond Myklebust goto out; 6714bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 67158b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 67168b7e3f49STrond Myklebust NULL, res->fs_locations, 67176926afd1STrond Myklebust res->fs_locations->server); 6718683b57b4STrond Myklebust out: 6719683b57b4STrond Myklebust return status; 6720683b57b4STrond Myklebust } 6721683b57b4STrond Myklebust 67225a5ea0d4SBryan Schumaker /* 67235a5ea0d4SBryan Schumaker * Decode SECINFO response 67245a5ea0d4SBryan Schumaker */ 67255a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 67265a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 67275a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 67285a5ea0d4SBryan Schumaker { 67295a5ea0d4SBryan Schumaker struct compound_hdr hdr; 67305a5ea0d4SBryan Schumaker int status; 67315a5ea0d4SBryan Schumaker 67325a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 67335a5ea0d4SBryan Schumaker if (status) 67345a5ea0d4SBryan Schumaker goto out; 67355a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 67365a5ea0d4SBryan Schumaker if (status) 67375a5ea0d4SBryan Schumaker goto out; 67385a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 67395a5ea0d4SBryan Schumaker if (status) 67405a5ea0d4SBryan Schumaker goto out; 67415a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 67425a5ea0d4SBryan Schumaker out: 67435a5ea0d4SBryan Schumaker return status; 67445a5ea0d4SBryan Schumaker } 67455a5ea0d4SBryan Schumaker 674699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 674799fe60d0SBenny Halevy /* 67487c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 67497c44f1aeSWeston Andros Adamson */ 67507c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 67517c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 67527c44f1aeSWeston Andros Adamson void *res) 67537c44f1aeSWeston Andros Adamson { 67547c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 67557c44f1aeSWeston Andros Adamson int status; 67567c44f1aeSWeston Andros Adamson 67577c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 67587c44f1aeSWeston Andros Adamson if (!status) 67597c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 67607c44f1aeSWeston Andros Adamson return status; 67617c44f1aeSWeston Andros Adamson } 67627c44f1aeSWeston Andros Adamson 67637c44f1aeSWeston Andros Adamson /* 67648b173218SRicardo Labiaga * Decode EXCHANGE_ID response 676599fe60d0SBenny Halevy */ 6766bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6767bf269551SChuck Lever struct xdr_stream *xdr, 676899fe60d0SBenny Halevy void *res) 676999fe60d0SBenny Halevy { 677099fe60d0SBenny Halevy struct compound_hdr hdr; 677199fe60d0SBenny Halevy int status; 677299fe60d0SBenny Halevy 6773bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 677499fe60d0SBenny Halevy if (!status) 6775bf269551SChuck Lever status = decode_exchange_id(xdr, res); 677699fe60d0SBenny Halevy return status; 677799fe60d0SBenny Halevy } 67782050f0ccSAndy Adamson 67792050f0ccSAndy Adamson /* 67808b173218SRicardo Labiaga * Decode CREATE_SESSION response 6781fc931582SAndy Adamson */ 6782bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6783bf269551SChuck Lever struct xdr_stream *xdr, 6784fc931582SAndy Adamson struct nfs41_create_session_res *res) 6785fc931582SAndy Adamson { 6786fc931582SAndy Adamson struct compound_hdr hdr; 6787fc931582SAndy Adamson int status; 6788fc931582SAndy Adamson 6789bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6790fc931582SAndy Adamson if (!status) 6791bf269551SChuck Lever status = decode_create_session(xdr, res); 6792fc931582SAndy Adamson return status; 6793fc931582SAndy Adamson } 6794fc931582SAndy Adamson 6795fc931582SAndy Adamson /* 67968b173218SRicardo Labiaga * Decode DESTROY_SESSION response 67970f3e66c6SAndy Adamson */ 6798bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6799bf269551SChuck Lever struct xdr_stream *xdr, 6800bf269551SChuck Lever void *res) 68010f3e66c6SAndy Adamson { 68020f3e66c6SAndy Adamson struct compound_hdr hdr; 68030f3e66c6SAndy Adamson int status; 68040f3e66c6SAndy Adamson 6805bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68060f3e66c6SAndy Adamson if (!status) 6807bf269551SChuck Lever status = decode_destroy_session(xdr, res); 68080f3e66c6SAndy Adamson return status; 68090f3e66c6SAndy Adamson } 68100f3e66c6SAndy Adamson 68110f3e66c6SAndy Adamson /* 681266245539STrond Myklebust * Decode DESTROY_CLIENTID response 681366245539STrond Myklebust */ 681466245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 681566245539STrond Myklebust struct xdr_stream *xdr, 681666245539STrond Myklebust void *res) 681766245539STrond Myklebust { 681866245539STrond Myklebust struct compound_hdr hdr; 681966245539STrond Myklebust int status; 682066245539STrond Myklebust 682166245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 682266245539STrond Myklebust if (!status) 682366245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 682466245539STrond Myklebust return status; 682566245539STrond Myklebust } 682666245539STrond Myklebust 682766245539STrond Myklebust /* 68288b173218SRicardo Labiaga * Decode SEQUENCE response 6829fc01cea9SAndy Adamson */ 6830bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6831bf269551SChuck Lever struct xdr_stream *xdr, 6832fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6833fc01cea9SAndy Adamson { 6834fc01cea9SAndy Adamson struct compound_hdr hdr; 6835fc01cea9SAndy Adamson int status; 6836fc01cea9SAndy Adamson 6837bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6838fc01cea9SAndy Adamson if (!status) 6839bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6840fc01cea9SAndy Adamson return status; 6841fc01cea9SAndy Adamson } 6842fc01cea9SAndy Adamson 6843fc01cea9SAndy Adamson /* 68448b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 68452050f0ccSAndy Adamson */ 6846bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6847bf269551SChuck Lever struct xdr_stream *xdr, 68482050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 68492050f0ccSAndy Adamson { 68502050f0ccSAndy Adamson struct compound_hdr hdr; 68512050f0ccSAndy Adamson int status; 68522050f0ccSAndy Adamson 6853bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68542050f0ccSAndy Adamson if (!status) 6855bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 68562050f0ccSAndy Adamson if (!status) 6857bf269551SChuck Lever status = decode_putrootfh(xdr); 68582050f0ccSAndy Adamson if (!status) 6859bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 68602050f0ccSAndy Adamson return status; 68612050f0ccSAndy Adamson } 686218019753SRicardo Labiaga 686318019753SRicardo Labiaga /* 686418019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 686518019753SRicardo Labiaga */ 6866bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6867bf269551SChuck Lever struct xdr_stream *xdr, 686818019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 686918019753SRicardo Labiaga { 687018019753SRicardo Labiaga struct compound_hdr hdr; 687118019753SRicardo Labiaga int status; 687218019753SRicardo Labiaga 6873bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 687418019753SRicardo Labiaga if (!status) 6875bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 687618019753SRicardo Labiaga if (!status) 6877bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 687818019753SRicardo Labiaga return status; 687918019753SRicardo Labiaga } 6880b1f69b75SAndy Adamson 6881b1f69b75SAndy Adamson /* 68827f11d8d3SAndy Adamson * Decode GETDEVICELIST response 68837f11d8d3SAndy Adamson */ 68847f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 68857f11d8d3SAndy Adamson struct xdr_stream *xdr, 68867f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 68877f11d8d3SAndy Adamson { 68887f11d8d3SAndy Adamson struct compound_hdr hdr; 68897f11d8d3SAndy Adamson int status; 68907f11d8d3SAndy Adamson 68917f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 68927f11d8d3SAndy Adamson 68937f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 68947f11d8d3SAndy Adamson if (status != 0) 68957f11d8d3SAndy Adamson goto out; 68967f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 68977f11d8d3SAndy Adamson if (status != 0) 68987f11d8d3SAndy Adamson goto out; 68997f11d8d3SAndy Adamson status = decode_putfh(xdr); 69007f11d8d3SAndy Adamson if (status != 0) 69017f11d8d3SAndy Adamson goto out; 69027f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 69037f11d8d3SAndy Adamson out: 69047f11d8d3SAndy Adamson return status; 69057f11d8d3SAndy Adamson } 69067f11d8d3SAndy Adamson 69077f11d8d3SAndy Adamson /* 6908b1f69b75SAndy Adamson * Decode GETDEVINFO response 6909b1f69b75SAndy Adamson */ 6910bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6911bf269551SChuck Lever struct xdr_stream *xdr, 6912b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6913b1f69b75SAndy Adamson { 6914b1f69b75SAndy Adamson struct compound_hdr hdr; 6915b1f69b75SAndy Adamson int status; 6916b1f69b75SAndy Adamson 6917bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6918b1f69b75SAndy Adamson if (status != 0) 6919b1f69b75SAndy Adamson goto out; 6920bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6921b1f69b75SAndy Adamson if (status != 0) 6922b1f69b75SAndy Adamson goto out; 6923bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6924b1f69b75SAndy Adamson out: 6925b1f69b75SAndy Adamson return status; 6926b1f69b75SAndy Adamson } 6927b1f69b75SAndy Adamson 6928b1f69b75SAndy Adamson /* 6929b1f69b75SAndy Adamson * Decode LAYOUTGET response 6930b1f69b75SAndy Adamson */ 6931bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6932bf269551SChuck Lever struct xdr_stream *xdr, 6933b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6934b1f69b75SAndy Adamson { 6935b1f69b75SAndy Adamson struct compound_hdr hdr; 6936b1f69b75SAndy Adamson int status; 6937b1f69b75SAndy Adamson 6938bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6939b1f69b75SAndy Adamson if (status) 6940b1f69b75SAndy Adamson goto out; 6941bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6942b1f69b75SAndy Adamson if (status) 6943b1f69b75SAndy Adamson goto out; 6944bf269551SChuck Lever status = decode_putfh(xdr); 6945b1f69b75SAndy Adamson if (status) 6946b1f69b75SAndy Adamson goto out; 6947bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6948b1f69b75SAndy Adamson out: 6949b1f69b75SAndy Adamson return status; 6950b1f69b75SAndy Adamson } 6951863a3c6cSAndy Adamson 6952863a3c6cSAndy Adamson /* 6953cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6954cbe82603SBenny Halevy */ 6955cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6956cbe82603SBenny Halevy struct xdr_stream *xdr, 6957cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6958cbe82603SBenny Halevy { 6959cbe82603SBenny Halevy struct compound_hdr hdr; 6960cbe82603SBenny Halevy int status; 6961cbe82603SBenny Halevy 6962cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6963cbe82603SBenny Halevy if (status) 6964cbe82603SBenny Halevy goto out; 6965cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6966cbe82603SBenny Halevy if (status) 6967cbe82603SBenny Halevy goto out; 6968cbe82603SBenny Halevy status = decode_putfh(xdr); 6969cbe82603SBenny Halevy if (status) 6970cbe82603SBenny Halevy goto out; 6971cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6972cbe82603SBenny Halevy out: 6973cbe82603SBenny Halevy return status; 6974cbe82603SBenny Halevy } 6975cbe82603SBenny Halevy 6976cbe82603SBenny Halevy /* 6977863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6978863a3c6cSAndy Adamson */ 6979863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6980863a3c6cSAndy Adamson struct xdr_stream *xdr, 6981863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6982863a3c6cSAndy Adamson { 6983863a3c6cSAndy Adamson struct compound_hdr hdr; 6984863a3c6cSAndy Adamson int status; 6985863a3c6cSAndy Adamson 6986863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6987863a3c6cSAndy Adamson if (status) 6988863a3c6cSAndy Adamson goto out; 6989863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6990863a3c6cSAndy Adamson if (status) 6991863a3c6cSAndy Adamson goto out; 6992863a3c6cSAndy Adamson status = decode_putfh(xdr); 6993863a3c6cSAndy Adamson if (status) 6994863a3c6cSAndy Adamson goto out; 6995863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6996863a3c6cSAndy Adamson if (status) 6997863a3c6cSAndy Adamson goto out; 69986926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6999863a3c6cSAndy Adamson out: 7000863a3c6cSAndy Adamson return status; 7001863a3c6cSAndy Adamson } 7002fca78d6dSBryan Schumaker 7003fca78d6dSBryan Schumaker /* 7004fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7005fca78d6dSBryan Schumaker */ 7006fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7007fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7008fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 7009fca78d6dSBryan Schumaker { 7010fca78d6dSBryan Schumaker struct compound_hdr hdr; 7011fca78d6dSBryan Schumaker int status; 7012fca78d6dSBryan Schumaker 7013fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7014fca78d6dSBryan Schumaker if (status) 7015fca78d6dSBryan Schumaker goto out; 7016fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7017fca78d6dSBryan Schumaker if (status) 7018fca78d6dSBryan Schumaker goto out; 7019fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7020fca78d6dSBryan Schumaker if (status) 7021fca78d6dSBryan Schumaker goto out; 702231e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7023fca78d6dSBryan Schumaker out: 7024fca78d6dSBryan Schumaker return status; 7025fca78d6dSBryan Schumaker } 70267d974794SBryan Schumaker 70277d974794SBryan Schumaker /* 70287d974794SBryan Schumaker * Decode TEST_STATEID response 70297d974794SBryan Schumaker */ 70307d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 70317d974794SBryan Schumaker struct xdr_stream *xdr, 70327d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 70337d974794SBryan Schumaker { 70347d974794SBryan Schumaker struct compound_hdr hdr; 70357d974794SBryan Schumaker int status; 70367d974794SBryan Schumaker 70377d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70387d974794SBryan Schumaker if (status) 70397d974794SBryan Schumaker goto out; 70407d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70417d974794SBryan Schumaker if (status) 70427d974794SBryan Schumaker goto out; 70437d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 70447d974794SBryan Schumaker out: 70457d974794SBryan Schumaker return status; 70467d974794SBryan Schumaker } 70479aeda35fSBryan Schumaker 70489aeda35fSBryan Schumaker /* 70499aeda35fSBryan Schumaker * Decode FREE_STATEID response 70509aeda35fSBryan Schumaker */ 70519aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 70529aeda35fSBryan Schumaker struct xdr_stream *xdr, 70539aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 70549aeda35fSBryan Schumaker { 70559aeda35fSBryan Schumaker struct compound_hdr hdr; 70569aeda35fSBryan Schumaker int status; 70579aeda35fSBryan Schumaker 70589aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70599aeda35fSBryan Schumaker if (status) 70609aeda35fSBryan Schumaker goto out; 70619aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70629aeda35fSBryan Schumaker if (status) 70639aeda35fSBryan Schumaker goto out; 70649aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 70659aeda35fSBryan Schumaker out: 70669aeda35fSBryan Schumaker return status; 70679aeda35fSBryan Schumaker } 706899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 706999fe60d0SBenny Halevy 7070573c4e1eSChuck Lever /** 7071573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7072573c4e1eSChuck Lever * the local page cache. 7073573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7074573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7075573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7076573c4e1eSChuck Lever * 7077573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7078573c4e1eSChuck Lever * returned. 7079573c4e1eSChuck Lever * 7080573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7081573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7082573c4e1eSChuck Lever * on a directory already in our cache. 7083573c4e1eSChuck Lever */ 7084573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7085573c4e1eSChuck Lever int plus) 70861da177e4SLinus Torvalds { 7087256e48bbSTrond Myklebust unsigned int savep; 7088dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 70891da177e4SLinus Torvalds uint32_t len; 7090babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7091babddc72SBryan Schumaker if (unlikely(!p)) 7092babddc72SBryan Schumaker goto out_overflow; 7093c08e76d0SChuck Lever if (*p == xdr_zero) { 7094babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7095babddc72SBryan Schumaker if (unlikely(!p)) 7096babddc72SBryan Schumaker goto out_overflow; 7097c08e76d0SChuck Lever if (*p == xdr_zero) 7098573c4e1eSChuck Lever return -EAGAIN; 70991da177e4SLinus Torvalds entry->eof = 1; 7100573c4e1eSChuck Lever return -EBADCOOKIE; 71011da177e4SLinus Torvalds } 71021da177e4SLinus Torvalds 7103babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7104babddc72SBryan Schumaker if (unlikely(!p)) 7105babddc72SBryan Schumaker goto out_overflow; 71061da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 71071da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7108c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7109babddc72SBryan Schumaker 71109af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7111babddc72SBryan Schumaker if (unlikely(!p)) 7112babddc72SBryan Schumaker goto out_overflow; 71131da177e4SLinus Torvalds entry->name = (const char *) p; 71141da177e4SLinus Torvalds 71151da177e4SLinus Torvalds /* 71161da177e4SLinus Torvalds * In case the server doesn't return an inode number, 71171da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 71181da177e4SLinus Torvalds * since glibc seems to choke on it...) 71191da177e4SLinus Torvalds */ 71201da177e4SLinus Torvalds entry->ino = 1; 71214f082222STrond Myklebust entry->fattr->valid = 0; 71221da177e4SLinus Torvalds 71239af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7124babddc72SBryan Schumaker goto out_overflow; 71259af8c222STrond Myklebust 7126256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7127babddc72SBryan Schumaker goto out_overflow; 71289af8c222STrond Myklebust 7129573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 71308b7e3f49STrond Myklebust NULL, entry->server) < 0) 7131babddc72SBryan Schumaker goto out_overflow; 713228331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 713328331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 713428331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 713582f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 71369af8c222STrond Myklebust 71370b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 71380b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 71390b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 71400b26a0bfSTrond Myklebust 7141573c4e1eSChuck Lever return 0; 7142babddc72SBryan Schumaker 7143babddc72SBryan Schumaker out_overflow: 7144babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7145573c4e1eSChuck Lever return -EAGAIN; 71461da177e4SLinus Torvalds } 71471da177e4SLinus Torvalds 71481da177e4SLinus Torvalds /* 71491da177e4SLinus Torvalds * We need to translate between nfs status return values and 71501da177e4SLinus Torvalds * the local errno values which may not be the same. 71511da177e4SLinus Torvalds */ 71521da177e4SLinus Torvalds static struct { 71531da177e4SLinus Torvalds int stat; 71541da177e4SLinus Torvalds int errno; 71551da177e4SLinus Torvalds } nfs_errtbl[] = { 71561da177e4SLinus Torvalds { NFS4_OK, 0 }, 7157856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7158856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7159856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7160856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7161856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7162856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7163856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7164856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7165856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7166856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7167856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7168856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7169856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7170856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7171856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7172856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7173856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7174856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7175856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7176856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7177856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7178856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7179fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7180856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7181856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7182856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7183856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7184856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7185856dff3dSBenny Halevy { -1, -EIO } 71861da177e4SLinus Torvalds }; 71871da177e4SLinus Torvalds 71881da177e4SLinus Torvalds /* 71891da177e4SLinus Torvalds * Convert an NFS error code to a local one. 71901da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 71911da177e4SLinus Torvalds */ 71921da177e4SLinus Torvalds static int 71930a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 71941da177e4SLinus Torvalds { 71951da177e4SLinus Torvalds int i; 71961da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 71971da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 71981da177e4SLinus Torvalds return nfs_errtbl[i].errno; 71991da177e4SLinus Torvalds } 72001da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 72011da177e4SLinus Torvalds /* The server is looney tunes. */ 7202fdcb4577STrond Myklebust return -EREMOTEIO; 72031da177e4SLinus Torvalds } 72041da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 72051da177e4SLinus Torvalds * handle it. 72061da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 72071da177e4SLinus Torvalds * not conflict with native Linux error codes. 72081da177e4SLinus Torvalds */ 7209856dff3dSBenny Halevy return -stat; 72101da177e4SLinus Torvalds } 72111da177e4SLinus Torvalds 72121da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 72131da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 72141da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 72159f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7216bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 72172bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 72182bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7219cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7220cc0175c1SChuck Lever .p_name = #proc, \ 72211da177e4SLinus Torvalds } 72221da177e4SLinus Torvalds 72231da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 72241da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 72251da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 72261da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 72271da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 72281da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 72291da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 72301da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 72311da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 72321da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 72331da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 72341da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 72351da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 72361da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 72371da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 72381da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 72391da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 72401da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 72411da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 72421da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 72431da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 72441da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 72451da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 72461da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 72471da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 72481da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 72491da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 72501da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 72511da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 72521da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 72531da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 72541da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7255029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 725623ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7257683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7258d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 72595a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 726099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 726199fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7262fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 72630f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7264fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 72652050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 726618019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7267b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7268b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7269863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7270cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7271fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 72727d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 72739aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 72747f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 7275ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7276ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 727766245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 727899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 72791da177e4SLinus Torvalds }; 72801da177e4SLinus Torvalds 7281a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 72821da177e4SLinus Torvalds .number = 4, 7283e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 72841da177e4SLinus Torvalds .procs = nfs4_procedures 72851da177e4SLinus Torvalds }; 72861da177e4SLinus Torvalds 72871da177e4SLinus Torvalds /* 72881da177e4SLinus Torvalds * Local variables: 72891da177e4SLinus Torvalds * c-basic-offset: 8 72901da177e4SLinus Torvalds * End: 72911da177e4SLinus Torvalds */ 7292