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 + \ 4502cebf828STrond Myklebust encode_getfh_maxsz + \ 4512cebf828STrond Myklebust encode_getattr_maxsz) 4521da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4541da177e4SLinus Torvalds decode_putfh_maxsz + \ 4552cebf828STrond Myklebust decode_open_maxsz + \ 4562cebf828STrond Myklebust decode_getfh_maxsz + \ 4572cebf828STrond Myklebust decode_getattr_maxsz) 4581da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4591da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4601da177e4SLinus Torvalds encode_putfh_maxsz + \ 4619104a55dSTrond Myklebust encode_open_confirm_maxsz) 4629104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4639104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4641da177e4SLinus Torvalds decode_putfh_maxsz + \ 4659104a55dSTrond Myklebust decode_open_confirm_maxsz) 4661da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4679b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4681da177e4SLinus Torvalds encode_putfh_maxsz + \ 4692cebf828STrond Myklebust encode_open_maxsz + \ 4702cebf828STrond Myklebust encode_getattr_maxsz) 4711da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4729b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4731da177e4SLinus Torvalds decode_putfh_maxsz + \ 4742cebf828STrond Myklebust decode_open_maxsz + \ 4752cebf828STrond Myklebust decode_getattr_maxsz) 4761da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4771da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4789b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4791da177e4SLinus Torvalds encode_putfh_maxsz + \ 4809104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 481516a6af6STrond Myklebust encode_getattr_maxsz) 4821da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4831da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4849b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4851da177e4SLinus Torvalds decode_putfh_maxsz + \ 4869104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 487516a6af6STrond Myklebust decode_getattr_maxsz) 4881da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4901da177e4SLinus Torvalds encode_putfh_maxsz + \ 4919104a55dSTrond Myklebust encode_close_maxsz + \ 492516a6af6STrond Myklebust encode_getattr_maxsz) 4931da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4949b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4951da177e4SLinus Torvalds decode_putfh_maxsz + \ 4969104a55dSTrond Myklebust decode_close_maxsz + \ 497516a6af6STrond Myklebust decode_getattr_maxsz) 4981da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4999b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5001da177e4SLinus Torvalds encode_putfh_maxsz + \ 5019104a55dSTrond Myklebust encode_setattr_maxsz + \ 5021da177e4SLinus Torvalds encode_getattr_maxsz) 5031da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5051da177e4SLinus Torvalds decode_putfh_maxsz + \ 5069104a55dSTrond Myklebust decode_setattr_maxsz + \ 5079104a55dSTrond Myklebust decode_getattr_maxsz) 5081da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5101da177e4SLinus Torvalds encode_putfh_maxsz + \ 5111da177e4SLinus Torvalds encode_fsinfo_maxsz) 5121da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5141da177e4SLinus Torvalds decode_putfh_maxsz + \ 5151da177e4SLinus Torvalds decode_fsinfo_maxsz) 5161da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5171da177e4SLinus Torvalds encode_renew_maxsz) 5181da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5191da177e4SLinus Torvalds decode_renew_maxsz) 5201da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5211da177e4SLinus Torvalds encode_setclientid_maxsz) 5221da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5231da177e4SLinus Torvalds decode_setclientid_maxsz) 5241da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5251da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5261da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 5271da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5281da177e4SLinus Torvalds encode_fsinfo_maxsz) 5291da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5301da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5311da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 5321da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5331da177e4SLinus Torvalds decode_fsinfo_maxsz) 5341da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5361da177e4SLinus Torvalds encode_putfh_maxsz + \ 5379104a55dSTrond Myklebust encode_lock_maxsz) 5381da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5401da177e4SLinus Torvalds decode_putfh_maxsz + \ 5419104a55dSTrond Myklebust decode_lock_maxsz) 5421da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5441da177e4SLinus Torvalds encode_putfh_maxsz + \ 5459104a55dSTrond Myklebust encode_lockt_maxsz) 5469104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5479b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5489104a55dSTrond Myklebust decode_putfh_maxsz + \ 5499104a55dSTrond Myklebust decode_lockt_maxsz) 5501da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5519b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5521da177e4SLinus Torvalds encode_putfh_maxsz + \ 5539104a55dSTrond Myklebust encode_locku_maxsz) 5541da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5559b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5561da177e4SLinus Torvalds decode_putfh_maxsz + \ 5579104a55dSTrond Myklebust decode_locku_maxsz) 558d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 559d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 560d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 561d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 562d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 563d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5641da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5661da177e4SLinus Torvalds encode_putfh_maxsz + \ 56776b32999STrond Myklebust encode_access_maxsz + \ 56876b32999STrond Myklebust encode_getattr_maxsz) 5691da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5709b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5711da177e4SLinus Torvalds decode_putfh_maxsz + \ 57276b32999STrond Myklebust decode_access_maxsz + \ 57376b32999STrond Myklebust decode_getattr_maxsz) 5741da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5759b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5761da177e4SLinus Torvalds encode_putfh_maxsz + \ 5771da177e4SLinus Torvalds encode_getattr_maxsz) 5781da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5799b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5801da177e4SLinus Torvalds decode_putfh_maxsz + \ 5811da177e4SLinus Torvalds decode_getattr_maxsz) 5821da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5839b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5841da177e4SLinus Torvalds encode_putfh_maxsz + \ 5851da177e4SLinus Torvalds encode_lookup_maxsz + \ 5861da177e4SLinus Torvalds encode_getattr_maxsz + \ 5871da177e4SLinus Torvalds encode_getfh_maxsz) 5881da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5899b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5901da177e4SLinus Torvalds decode_putfh_maxsz + \ 591e6889620STrond Myklebust decode_lookup_maxsz + \ 5921da177e4SLinus Torvalds decode_getattr_maxsz + \ 5931da177e4SLinus Torvalds decode_getfh_maxsz) 5941da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5961da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5971da177e4SLinus Torvalds encode_getattr_maxsz + \ 5981da177e4SLinus Torvalds encode_getfh_maxsz) 5991da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6009b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6011da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6021da177e4SLinus Torvalds decode_getattr_maxsz + \ 6031da177e4SLinus Torvalds decode_getfh_maxsz) 6041da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6061da177e4SLinus Torvalds encode_putfh_maxsz + \ 607778d2817STrond Myklebust encode_remove_maxsz) 6081da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6101da177e4SLinus Torvalds decode_putfh_maxsz + \ 611778d2817STrond Myklebust decode_remove_maxsz) 6121da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6141da177e4SLinus Torvalds encode_putfh_maxsz + \ 6151da177e4SLinus Torvalds encode_savefh_maxsz + \ 6161da177e4SLinus Torvalds encode_putfh_maxsz + \ 617778d2817STrond Myklebust encode_rename_maxsz) 6181da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6199b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6201da177e4SLinus Torvalds decode_putfh_maxsz + \ 6211da177e4SLinus Torvalds decode_savefh_maxsz + \ 6221da177e4SLinus Torvalds decode_putfh_maxsz + \ 623778d2817STrond Myklebust decode_rename_maxsz) 6241da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6259b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6261da177e4SLinus Torvalds encode_putfh_maxsz + \ 6271da177e4SLinus Torvalds encode_savefh_maxsz + \ 6281da177e4SLinus Torvalds encode_putfh_maxsz + \ 62991ba2eeeSTrond Myklebust encode_link_maxsz + \ 63091ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 631a9f6991bSTrond Myklebust encode_getattr_maxsz) 6321da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6339b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6341da177e4SLinus Torvalds decode_putfh_maxsz + \ 6351da177e4SLinus Torvalds decode_savefh_maxsz + \ 6361da177e4SLinus Torvalds decode_putfh_maxsz + \ 63791ba2eeeSTrond Myklebust decode_link_maxsz + \ 63891ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 63991ba2eeeSTrond Myklebust decode_getattr_maxsz) 6401da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6419b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6421da177e4SLinus Torvalds encode_putfh_maxsz + \ 6431da177e4SLinus Torvalds encode_symlink_maxsz + \ 6441da177e4SLinus Torvalds encode_getattr_maxsz + \ 6451da177e4SLinus Torvalds encode_getfh_maxsz) 6461da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6479b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6481da177e4SLinus Torvalds decode_putfh_maxsz + \ 6491da177e4SLinus Torvalds decode_symlink_maxsz + \ 6501da177e4SLinus Torvalds decode_getattr_maxsz + \ 6511da177e4SLinus Torvalds decode_getfh_maxsz) 6521da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6539b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6541da177e4SLinus Torvalds encode_putfh_maxsz + \ 6551da177e4SLinus Torvalds encode_create_maxsz + \ 65656ae19f3STrond Myklebust encode_getfh_maxsz + \ 65756ae19f3STrond Myklebust encode_getattr_maxsz) 6581da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6599b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6601da177e4SLinus Torvalds decode_putfh_maxsz + \ 6611da177e4SLinus Torvalds decode_create_maxsz + \ 66256ae19f3STrond Myklebust decode_getfh_maxsz + \ 66356ae19f3STrond Myklebust decode_getattr_maxsz) 6641da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6661da177e4SLinus Torvalds encode_putfh_maxsz + \ 6671da177e4SLinus Torvalds encode_getattr_maxsz) 6681da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6701da177e4SLinus Torvalds decode_putfh_maxsz + \ 6711da177e4SLinus Torvalds decode_getattr_maxsz) 6721da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6739b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6741da177e4SLinus Torvalds encode_putfh_maxsz + \ 6759104a55dSTrond Myklebust encode_statfs_maxsz) 6761da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6781da177e4SLinus Torvalds decode_putfh_maxsz + \ 6799104a55dSTrond Myklebust decode_statfs_maxsz) 6801da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 682ab91f264STrond Myklebust encode_putfh_maxsz + \ 6831da177e4SLinus Torvalds encode_getattr_maxsz) 6841da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6859b7b9fccSAndy Adamson decode_sequence_maxsz + \ 686ab91f264STrond Myklebust decode_putfh_maxsz + \ 6871da177e4SLinus Torvalds decode_getattr_maxsz) 6881da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6901da177e4SLinus Torvalds encode_putfh_maxsz + \ 691fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 692fa178f29STrond Myklebust encode_getattr_maxsz) 6931da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6949b7b9fccSAndy Adamson decode_sequence_maxsz + \ 695fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 696fa178f29STrond Myklebust decode_getattr_maxsz) 697029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6989b7b9fccSAndy Adamson encode_sequence_maxsz + \ 699029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7009104a55dSTrond Myklebust encode_getacl_maxsz) 701029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7029b7b9fccSAndy Adamson decode_sequence_maxsz + \ 703029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7049104a55dSTrond Myklebust decode_getacl_maxsz) 70523ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7069b7b9fccSAndy Adamson encode_sequence_maxsz + \ 70723ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7089104a55dSTrond Myklebust encode_setacl_maxsz) 70923ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7109b7b9fccSAndy Adamson decode_sequence_maxsz + \ 71123ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7129104a55dSTrond Myklebust decode_setacl_maxsz) 713683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 714683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7159b7b9fccSAndy Adamson encode_sequence_maxsz + \ 716683b57b4STrond Myklebust encode_putfh_maxsz + \ 717e6889620STrond Myklebust encode_lookup_maxsz + \ 718e6889620STrond Myklebust encode_fs_locations_maxsz) 719683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 720683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7219b7b9fccSAndy Adamson decode_sequence_maxsz + \ 722683b57b4STrond Myklebust decode_putfh_maxsz + \ 723e6889620STrond Myklebust decode_lookup_maxsz + \ 724e6889620STrond Myklebust decode_fs_locations_maxsz) 7255a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7265a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7275a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7285a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7295a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7305a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7315a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7325a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 73399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7347c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7357c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7367c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7377c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7387c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7397c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 74099fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 74199fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 74299fe60d0SBenny Halevy encode_exchange_id_maxsz) 74399fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 74499fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 74599fe60d0SBenny Halevy decode_exchange_id_maxsz) 746fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 747fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 748fc931582SAndy Adamson encode_create_session_maxsz) 749fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 750fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 751fc931582SAndy Adamson decode_create_session_maxsz) 7520f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7530f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7540f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7550f3e66c6SAndy Adamson decode_destroy_session_maxsz) 75666245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 75766245539STrond Myklebust encode_destroy_clientid_maxsz) 75866245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 75966245539STrond Myklebust decode_destroy_clientid_maxsz) 760fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 761fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 762fc01cea9SAndy Adamson encode_sequence_maxsz) 763fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 764fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 765fc01cea9SAndy Adamson decode_sequence_maxsz) 7662050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7672050f0ccSAndy Adamson encode_sequence_maxsz + \ 7682050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7692050f0ccSAndy Adamson encode_fsinfo_maxsz) 7702050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7712050f0ccSAndy Adamson decode_sequence_maxsz + \ 7722050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7732050f0ccSAndy Adamson decode_fsinfo_maxsz) 77418019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 77518019753SRicardo Labiaga encode_sequence_maxsz + \ 77618019753SRicardo Labiaga encode_reclaim_complete_maxsz) 77718019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 77818019753SRicardo Labiaga decode_sequence_maxsz + \ 77918019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7807f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 7817f11d8d3SAndy Adamson encode_sequence_maxsz + \ 7827f11d8d3SAndy Adamson encode_putfh_maxsz + \ 7837f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 7847f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 7857f11d8d3SAndy Adamson decode_sequence_maxsz + \ 7867f11d8d3SAndy Adamson decode_putfh_maxsz + \ 7877f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 788b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 789b1f69b75SAndy Adamson encode_sequence_maxsz +\ 790b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 791b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 792b1f69b75SAndy Adamson decode_sequence_maxsz + \ 793b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 794b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 795b1f69b75SAndy Adamson encode_sequence_maxsz + \ 796b1f69b75SAndy Adamson encode_putfh_maxsz + \ 797b1f69b75SAndy Adamson encode_layoutget_maxsz) 798b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 799b1f69b75SAndy Adamson decode_sequence_maxsz + \ 800b1f69b75SAndy Adamson decode_putfh_maxsz + \ 801b1f69b75SAndy Adamson decode_layoutget_maxsz) 802863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 803863a3c6cSAndy Adamson encode_sequence_maxsz +\ 804863a3c6cSAndy Adamson encode_putfh_maxsz + \ 805863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 806863a3c6cSAndy Adamson encode_getattr_maxsz) 807863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 808863a3c6cSAndy Adamson decode_sequence_maxsz + \ 809863a3c6cSAndy Adamson decode_putfh_maxsz + \ 810863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 811863a3c6cSAndy Adamson decode_getattr_maxsz) 812cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 813cbe82603SBenny Halevy encode_sequence_maxsz + \ 814cbe82603SBenny Halevy encode_putfh_maxsz + \ 815cbe82603SBenny Halevy encode_layoutreturn_maxsz) 816cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 817cbe82603SBenny Halevy decode_sequence_maxsz + \ 818cbe82603SBenny Halevy decode_putfh_maxsz + \ 819cbe82603SBenny Halevy decode_layoutreturn_maxsz) 820fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 821fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 822fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 823fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 824fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 825fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 826fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 827fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8287d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8297d974794SBryan Schumaker encode_sequence_maxsz + \ 8307d974794SBryan Schumaker encode_test_stateid_maxsz) 8317d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8327d974794SBryan Schumaker decode_sequence_maxsz + \ 8337d974794SBryan Schumaker decode_test_stateid_maxsz) 8349aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8359aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8369aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8379aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8389aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8399aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8402449ea2eSAlexandros Batsakis 8412449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8422449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8432449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8442449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8452449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8462449ea2eSAlexandros Batsakis XDR_UNIT); 8472449ea2eSAlexandros Batsakis 8482449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8492449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8502449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8512449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8522449ea2eSAlexandros Batsakis XDR_UNIT); 85399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8541da177e4SLinus Torvalds 855bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 856bca79478STrond Myklebust [NF4BAD] = 0, 857bca79478STrond Myklebust [NF4REG] = S_IFREG, 858bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 859bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 860bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 861bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 862bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 863bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 864bca79478STrond Myklebust [NF4ATTRDIR] = 0, 865bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8661da177e4SLinus Torvalds }; 8671da177e4SLinus Torvalds 8681da177e4SLinus Torvalds struct compound_hdr { 8691da177e4SLinus Torvalds int32_t status; 8701da177e4SLinus Torvalds uint32_t nops; 871d017931cSAndy Adamson __be32 * nops_p; 8721da177e4SLinus Torvalds uint32_t taglen; 8731da177e4SLinus Torvalds char * tag; 8740c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 87566cc0429SBenny Halevy u32 minorversion; 8761da177e4SLinus Torvalds }; 8771da177e4SLinus Torvalds 87813c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 87913c65ce9SBenny Halevy { 88013c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 88113c65ce9SBenny Halevy BUG_ON(!p); 88213c65ce9SBenny Halevy return p; 88313c65ce9SBenny Halevy } 8841da177e4SLinus Torvalds 885cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 886cb17e556STrond Myklebust { 887cb17e556STrond Myklebust __be32 *p; 888cb17e556STrond Myklebust 889cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 890cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 891cb17e556STrond Myklebust } 892cb17e556STrond Myklebust 8931da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 8941da177e4SLinus Torvalds { 8958687b63aSAl Viro __be32 *p; 8961da177e4SLinus Torvalds 8976fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 8981da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 8991da177e4SLinus Torvalds } 9001da177e4SLinus Torvalds 9014ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9024ade9821STrond Myklebust { 9034ade9821STrond Myklebust __be32 *p; 9044ade9821STrond Myklebust 9054ade9821STrond Myklebust p = reserve_space(xdr, 4); 9064ade9821STrond Myklebust *p = cpu_to_be32(n); 9074ade9821STrond Myklebust } 9084ade9821STrond Myklebust 909ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 910ff2eb681STrond Myklebust { 911ff2eb681STrond Myklebust __be32 *p; 912ff2eb681STrond Myklebust 913ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 914ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 915ff2eb681STrond Myklebust } 916ff2eb681STrond Myklebust 9174ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9184ade9821STrond Myklebust const struct nfs_seqid *seqid) 9194ade9821STrond Myklebust { 9204ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 9214ade9821STrond Myklebust } 9224ade9821STrond Myklebust 9230c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9240c4e8c18SBenny Halevy struct rpc_rqst *req, 9250c4e8c18SBenny Halevy struct compound_hdr *hdr) 9261da177e4SLinus Torvalds { 9278687b63aSAl Viro __be32 *p; 928a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9290c4e8c18SBenny Halevy 9300c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9310c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9320c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9330c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9341da177e4SLinus Torvalds 9351da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 9366fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9376fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 938e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 939d017931cSAndy Adamson hdr->nops_p = p; 94034558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 941d017931cSAndy Adamson } 942d017931cSAndy Adamson 943ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 944ab19b481STrond Myklebust uint32_t replen, 945ab19b481STrond Myklebust struct compound_hdr *hdr) 946ab19b481STrond Myklebust { 947ab19b481STrond Myklebust encode_uint32(xdr, op); 948ab19b481STrond Myklebust hdr->nops++; 949ab19b481STrond Myklebust hdr->replen += replen; 950ab19b481STrond Myklebust } 951ab19b481STrond Myklebust 952d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 953d017931cSAndy Adamson { 954fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 955d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9561da177e4SLinus Torvalds } 9571da177e4SLinus Torvalds 958ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 959ea9d23f5STrond Myklebust { 9602d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 961ea9d23f5STrond Myklebust } 962ea9d23f5STrond Myklebust 9631da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9641da177e4SLinus Torvalds { 965cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 9661da177e4SLinus Torvalds } 9671da177e4SLinus Torvalds 968cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9691da177e4SLinus Torvalds { 9701da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9711da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9721da177e4SLinus Torvalds int owner_namelen = 0; 9731da177e4SLinus Torvalds int owner_grouplen = 0; 9748687b63aSAl Viro __be32 *p; 9758687b63aSAl Viro __be32 *q; 9761da177e4SLinus Torvalds int len; 9771da177e4SLinus Torvalds uint32_t bmval0 = 0; 9781da177e4SLinus Torvalds uint32_t bmval1 = 0; 9791da177e4SLinus Torvalds 9801da177e4SLinus Torvalds /* 9811da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9821da177e4SLinus Torvalds * In the worst-case, this would be 9831da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9841da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 98523ec6965SJ. Bruce Fields * such as owner/group. 9861da177e4SLinus Torvalds */ 9871da177e4SLinus Torvalds len = 16; 9881da177e4SLinus Torvalds 9891da177e4SLinus Torvalds /* Sigh */ 9901da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9911da177e4SLinus Torvalds len += 8; 9921da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 9931da177e4SLinus Torvalds len += 4; 9941da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 995e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 9961da177e4SLinus Torvalds if (owner_namelen < 0) { 997fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 9981da177e4SLinus Torvalds iap->ia_uid); 9991da177e4SLinus Torvalds /* XXX */ 10001da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10011da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10021da177e4SLinus Torvalds /* goto out; */ 10031da177e4SLinus Torvalds } 10041da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10051da177e4SLinus Torvalds } 10061da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1007e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10081da177e4SLinus Torvalds if (owner_grouplen < 0) { 1009fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 10101da177e4SLinus Torvalds iap->ia_gid); 10111da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10121da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10131da177e4SLinus Torvalds /* goto out; */ 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10161da177e4SLinus Torvalds } 10171da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 10181da177e4SLinus Torvalds len += 16; 10191da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 10201da177e4SLinus Torvalds len += 4; 10211da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 10221da177e4SLinus Torvalds len += 16; 10231da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 10241da177e4SLinus Torvalds len += 4; 102513c65ce9SBenny Halevy p = reserve_space(xdr, len); 10261da177e4SLinus Torvalds 10271da177e4SLinus Torvalds /* 10281da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 10291da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 10301da177e4SLinus Torvalds */ 1031e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 10321da177e4SLinus Torvalds q = p; 10331da177e4SLinus Torvalds p += 3; 10341da177e4SLinus Torvalds 10351da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 10361da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 1037b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 10381da177e4SLinus Torvalds } 10391da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10401da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1041e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10421da177e4SLinus Torvalds } 10431da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10441da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1045811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10461da177e4SLinus Torvalds } 10471da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10481da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1049811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10501da177e4SLinus Torvalds } 10511da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10521da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1053e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1054e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1055d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1056d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10571da177e4SLinus Torvalds } 10581da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10591da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1060e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10611da177e4SLinus Torvalds } 10621da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10631da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1064e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1065e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1066e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1067e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10681da177e4SLinus Torvalds } 10691da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10701da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1071e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10721da177e4SLinus Torvalds } 10731da177e4SLinus Torvalds 10741da177e4SLinus Torvalds /* 10751da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10761da177e4SLinus Torvalds */ 10771da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1078f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10791da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10801da177e4SLinus Torvalds BUG(); 10811da177e4SLinus Torvalds } 10821da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10831da177e4SLinus Torvalds *q++ = htonl(bmval0); 10841da177e4SLinus Torvalds *q++ = htonl(bmval1); 108534558513SBenny Halevy *q = htonl(len); 10861da177e4SLinus Torvalds 10871da177e4SLinus Torvalds /* out: */ 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds 1090cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10911da177e4SLinus Torvalds { 1092475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1093475d4ba0STrond Myklebust encode_uint32(xdr, access); 10941da177e4SLinus Torvalds } 10951da177e4SLinus Torvalds 1096cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 10971da177e4SLinus Torvalds { 1098ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 10994ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1100ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 11011da177e4SLinus Torvalds } 11021da177e4SLinus Torvalds 11030b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11041da177e4SLinus Torvalds { 11058687b63aSAl Viro __be32 *p; 11061da177e4SLinus Torvalds 1107475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1108475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1109b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 111034558513SBenny Halevy *p = cpu_to_be32(args->count); 11111da177e4SLinus Torvalds } 11121da177e4SLinus Torvalds 1113cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11141da177e4SLinus Torvalds { 11158687b63aSAl Viro __be32 *p; 11161da177e4SLinus Torvalds 1117475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1118475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11191da177e4SLinus Torvalds 11201da177e4SLinus Torvalds switch (create->ftype) { 11211da177e4SLinus Torvalds case NF4LNK: 112213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 112334558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 112494a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11251da177e4SLinus Torvalds break; 11261da177e4SLinus Torvalds 11271da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 112813c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1129e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 113034558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11311da177e4SLinus Torvalds break; 11321da177e4SLinus Torvalds 11331da177e4SLinus Torvalds default: 11341da177e4SLinus Torvalds break; 11351da177e4SLinus Torvalds } 11361da177e4SLinus Torvalds 1137811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1138cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11391da177e4SLinus Torvalds } 11401da177e4SLinus Torvalds 1141cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11421da177e4SLinus Torvalds { 11438687b63aSAl Viro __be32 *p; 11441da177e4SLinus Torvalds 1145475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1146475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1147e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 114834558513SBenny Halevy *p = cpu_to_be32(bitmap); 11491da177e4SLinus Torvalds } 11501da177e4SLinus Torvalds 1151cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11521da177e4SLinus Torvalds { 11538687b63aSAl Viro __be32 *p; 11541da177e4SLinus Torvalds 1155475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1156475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1157e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1158e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 115934558513SBenny Halevy *p = cpu_to_be32(bm1); 11601da177e4SLinus Torvalds } 11611da177e4SLinus Torvalds 1162dae100c2SFred Isaman static void 1163dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1164dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1165dae100c2SFred Isaman struct compound_hdr *hdr) 1166dae100c2SFred Isaman { 1167dae100c2SFred Isaman __be32 *p; 1168dae100c2SFred Isaman 1169ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1170dae100c2SFred Isaman if (bm2) { 1171dae100c2SFred Isaman p = reserve_space(xdr, 16); 1172dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1173dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1174dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1175dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1176dae100c2SFred Isaman } else if (bm1) { 1177dae100c2SFred Isaman p = reserve_space(xdr, 12); 1178dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1179dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1180dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1181dae100c2SFred Isaman } else { 1182dae100c2SFred Isaman p = reserve_space(xdr, 8); 1183dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1184dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1185dae100c2SFred Isaman } 1186dae100c2SFred Isaman } 1187dae100c2SFred Isaman 1188cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11891da177e4SLinus Torvalds { 1190cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1191d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11921da177e4SLinus Torvalds } 11931da177e4SLinus Torvalds 119488034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 11951549210fSTrond Myklebust const u32 *open_bitmap, 119688034c3dSAndy Adamson struct compound_hdr *hdr) 119788034c3dSAndy Adamson { 119888034c3dSAndy Adamson encode_getattr_three(xdr, 11991549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12001549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12011549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 120288034c3dSAndy Adamson hdr); 120388034c3dSAndy Adamson } 120488034c3dSAndy Adamson 1205cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12061da177e4SLinus Torvalds { 1207dae100c2SFred Isaman encode_getattr_three(xdr, 1208dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1209dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1210dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1211dae100c2SFred Isaman hdr); 12121da177e4SLinus Torvalds } 12131da177e4SLinus Torvalds 1214cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1215830b8e33SManoj Naik { 1216cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1217cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1218830b8e33SManoj Naik } 1219830b8e33SManoj Naik 1220cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12211da177e4SLinus Torvalds { 1222ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12231da177e4SLinus Torvalds } 12241da177e4SLinus Torvalds 1225cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12261da177e4SLinus Torvalds { 1227ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12286fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12291da177e4SLinus Torvalds } 12301da177e4SLinus Torvalds 1231911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1232911d1aafSTrond Myklebust { 1233f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1234911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1235911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1236911d1aafSTrond Myklebust } 1237911d1aafSTrond Myklebust 1238911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1239911d1aafSTrond Myklebust { 1240911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1241911d1aafSTrond Myklebust return ~(uint64_t)0; 1242911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1243911d1aafSTrond Myklebust } 1244911d1aafSTrond Myklebust 1245daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1246daccbdedSTrond Myklebust { 1247daccbdedSTrond Myklebust __be32 *p; 1248daccbdedSTrond Myklebust 1249d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1250daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1251d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1252daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1253d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1254daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1255daccbdedSTrond Myklebust } 1256daccbdedSTrond Myklebust 12571da177e4SLinus Torvalds /* 12581da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12591da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12601da177e4SLinus Torvalds */ 1261cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12621da177e4SLinus Torvalds { 12638687b63aSAl Viro __be32 *p; 12641da177e4SLinus Torvalds 1265475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1266475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1267e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1268e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1269b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1270b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 127134558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1272911d1aafSTrond Myklebust if (args->new_lock_owner){ 12734ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1274ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->open_stateid); 12754ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1276daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12771da177e4SLinus Torvalds } 12781da177e4SLinus Torvalds else { 1279ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->lock_stateid); 12804ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 12811da177e4SLinus Torvalds } 12821da177e4SLinus Torvalds } 12831da177e4SLinus Torvalds 1284cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12851da177e4SLinus Torvalds { 12868687b63aSAl Viro __be32 *p; 12871da177e4SLinus Torvalds 1288475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1289475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1290e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1291b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1292b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1293daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12941da177e4SLinus Torvalds } 12951da177e4SLinus Torvalds 1296cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 12971da177e4SLinus Torvalds { 12988687b63aSAl Viro __be32 *p; 12991da177e4SLinus Torvalds 1300475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1301475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13024ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1303ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 1304ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1305b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 130634558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13071da177e4SLinus Torvalds } 13081da177e4SLinus Torvalds 1309d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1310d3c7b7ccSTrond Myklebust { 1311ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1312d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1313d3c7b7ccSTrond Myklebust } 1314d3c7b7ccSTrond Myklebust 1315cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13161da177e4SLinus Torvalds { 1317ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13186fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13191da177e4SLinus Torvalds } 13201da177e4SLinus Torvalds 1321dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13221da177e4SLinus Torvalds { 13238687b63aSAl Viro __be32 *p; 13241da177e4SLinus Torvalds 132513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1326dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13271da177e4SLinus Torvalds case FMODE_READ: 1328e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13291da177e4SLinus Torvalds break; 13301da177e4SLinus Torvalds case FMODE_WRITE: 1331e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13321da177e4SLinus Torvalds break; 13331da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1334e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13351da177e4SLinus Torvalds break; 13361da177e4SLinus Torvalds default: 1337e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13381da177e4SLinus Torvalds } 133934558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13401da177e4SLinus Torvalds } 13411da177e4SLinus Torvalds 13421da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13431da177e4SLinus Torvalds { 13448687b63aSAl Viro __be32 *p; 13451da177e4SLinus Torvalds /* 13461da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13471da177e4SLinus Torvalds * owner 4 = 32 13481da177e4SLinus Torvalds */ 13494ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1350dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 135195b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1352b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 135395b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 135493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1355d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 135695b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 135795b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13581da177e4SLinus Torvalds } 13591da177e4SLinus Torvalds 13601da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13611da177e4SLinus Torvalds { 13628687b63aSAl Viro __be32 *p; 13634882ef72SAlexandros Batsakis struct nfs_client *clp; 13641da177e4SLinus Torvalds 136513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13661da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13671da177e4SLinus Torvalds case 0: 136834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13691da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13701da177e4SLinus Torvalds break; 13711da177e4SLinus Torvalds default: 13724882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1373a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13744882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13754882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13764882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13774882ef72SAlexandros Batsakis } else { 13784882ef72SAlexandros Batsakis struct iattr dummy; 13794882ef72SAlexandros Batsakis 13804882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13814882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13824882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13834882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13844882ef72SAlexandros Batsakis } 13854882ef72SAlexandros Batsakis } else { 138634558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13871da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13881da177e4SLinus Torvalds } 13891da177e4SLinus Torvalds } 13904882ef72SAlexandros Batsakis } 13911da177e4SLinus Torvalds 13921da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13931da177e4SLinus Torvalds { 13948687b63aSAl Viro __be32 *p; 13951da177e4SLinus Torvalds 139613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13971da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 13981da177e4SLinus Torvalds case 0: 139934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14001da177e4SLinus Torvalds break; 14011da177e4SLinus Torvalds default: 14021da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 140334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14041da177e4SLinus Torvalds encode_createmode(xdr, arg); 14051da177e4SLinus Torvalds } 14061da177e4SLinus Torvalds } 14071da177e4SLinus Torvalds 1408bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14091da177e4SLinus Torvalds { 14108687b63aSAl Viro __be32 *p; 14111da177e4SLinus Torvalds 141213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14131da177e4SLinus Torvalds switch (delegation_type) { 14141da177e4SLinus Torvalds case 0: 141534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14161da177e4SLinus Torvalds break; 14171da177e4SLinus Torvalds case FMODE_READ: 141834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14191da177e4SLinus Torvalds break; 14201da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 142134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14221da177e4SLinus Torvalds break; 14231da177e4SLinus Torvalds default: 14241da177e4SLinus Torvalds BUG(); 14251da177e4SLinus Torvalds } 14261da177e4SLinus Torvalds } 14271da177e4SLinus Torvalds 14281da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14291da177e4SLinus Torvalds { 14308687b63aSAl Viro __be32 *p; 14311da177e4SLinus Torvalds 143213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14341da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14351da177e4SLinus Torvalds } 14361da177e4SLinus Torvalds 1437bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14381da177e4SLinus Torvalds { 14398687b63aSAl Viro __be32 *p; 14401da177e4SLinus Torvalds 144113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14431da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14441da177e4SLinus Torvalds } 14451da177e4SLinus Torvalds 14461da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14471da177e4SLinus Torvalds { 14488687b63aSAl Viro __be32 *p; 14491da177e4SLinus Torvalds 1450ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1451ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1452ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14531da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14541da177e4SLinus Torvalds } 14551da177e4SLinus Torvalds 1456cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14571da177e4SLinus Torvalds { 1458ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 14591da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14601da177e4SLinus Torvalds encode_opentype(xdr, arg); 14611da177e4SLinus Torvalds switch (arg->claim) { 14621da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14631da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14641da177e4SLinus Torvalds break; 14651da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14661da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14671da177e4SLinus Torvalds break; 14681da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14691da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14701da177e4SLinus Torvalds break; 14711da177e4SLinus Torvalds default: 14721da177e4SLinus Torvalds BUG(); 14731da177e4SLinus Torvalds } 14741da177e4SLinus Torvalds } 14751da177e4SLinus Torvalds 1476cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 14771da177e4SLinus Torvalds { 1478ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1479ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 14804ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 14811da177e4SLinus Torvalds } 14821da177e4SLinus Torvalds 1483cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 14841da177e4SLinus Torvalds { 1485ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1486ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 14874ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1488dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 14891da177e4SLinus Torvalds } 14901da177e4SLinus Torvalds 1491cf8cdbe5SAndy Adamson static void 1492d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 14931da177e4SLinus Torvalds { 1494ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 14956fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 14961da177e4SLinus Torvalds } 14971da177e4SLinus Torvalds 1498cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14991da177e4SLinus Torvalds { 1500ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15011da177e4SLinus Torvalds } 15021da177e4SLinus Torvalds 15034fc8796dSTrond Myklebust static void encode_open_stateid(struct xdr_stream *xdr, 15044fc8796dSTrond Myklebust const struct nfs_open_context *ctx, 15054fc8796dSTrond Myklebust const struct nfs_lock_context *l_ctx, 15064fc8796dSTrond Myklebust fmode_t fmode, 15074fc8796dSTrond Myklebust int zero_seqid) 15081da177e4SLinus Torvalds { 15091da177e4SLinus Torvalds nfs4_stateid stateid; 15101da177e4SLinus Torvalds 15111da177e4SLinus Torvalds if (ctx->state != NULL) { 15122a369153STrond Myklebust const struct nfs_lockowner *lockowner = NULL; 15132a369153STrond Myklebust 15142a369153STrond Myklebust if (l_ctx != NULL) 15152a369153STrond Myklebust lockowner = &l_ctx->lockowner; 15164fc8796dSTrond Myklebust nfs4_select_rw_stateid(&stateid, ctx->state, 15172a369153STrond Myklebust fmode, lockowner); 151889d1ea65SAndy Adamson if (zero_seqid) 15192d2f24adSTrond Myklebust stateid.seqid = 0; 1520ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &stateid); 15211da177e4SLinus Torvalds } else 1522ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 15231da177e4SLinus Torvalds } 15241da177e4SLinus Torvalds 1525cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15261da177e4SLinus Torvalds { 15278687b63aSAl Viro __be32 *p; 15281da177e4SLinus Torvalds 1529ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 1530d0b496d2STrond Myklebust encode_open_stateid(xdr, args->context, args->lock_context, 15314fc8796dSTrond Myklebust FMODE_READ, hdr->minorversion); 15321da177e4SLinus Torvalds 153313c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1534b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 153534558513SBenny Halevy *p = cpu_to_be32(args->count); 15361da177e4SLinus Torvalds } 15371da177e4SLinus Torvalds 1538cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15391da177e4SLinus Torvalds { 154028331a46STrond Myklebust uint32_t attrs[2] = { 154128331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 154228331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 154328331a46STrond Myklebust }; 15446f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1545cd93710eSChuck Lever __be32 *p, verf[2]; 15461da177e4SLinus Torvalds 154782f2e547SBryan Schumaker if (readdir->plus) { 154882f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 154928331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 155082f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 155182f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 155282f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 155382f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15546f7a35bdSTrond Myklebust dircount >>= 1; 155582f2e547SBryan Schumaker } 155628331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 155728331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 155828331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15596f7a35bdSTrond Myklebust 1560475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1561ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1562cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1563cd93710eSChuck Lever p = reserve_space(xdr, 20); 15646f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15656f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15666f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 156782f2e547SBryan Schumaker 1568e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 156934558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1570cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 157144109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 157244109241SFred Isaman __func__, 1573eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1574cd93710eSChuck Lever verf[0], verf[1], 1575eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1576eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 15771da177e4SLinus Torvalds } 15781da177e4SLinus Torvalds 1579cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 15801da177e4SLinus Torvalds { 1581ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 15821da177e4SLinus Torvalds } 15831da177e4SLinus Torvalds 1584cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 15851da177e4SLinus Torvalds { 1586ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 15876fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 15881da177e4SLinus Torvalds } 15891da177e4SLinus Torvalds 1590cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 15911da177e4SLinus Torvalds { 1592ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1593811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1594811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 15951da177e4SLinus Torvalds } 15961da177e4SLinus Torvalds 1597bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1598bb4dae5eSChuck Lever struct compound_hdr *hdr) 15991da177e4SLinus Torvalds { 1600475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1601ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16021da177e4SLinus Torvalds } 16031da177e4SLinus Torvalds 1604cf8cdbe5SAndy Adamson static void 1605d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 160656ae19f3STrond Myklebust { 1607ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 160856ae19f3STrond Myklebust } 160956ae19f3STrond Myklebust 16109f06c719SChuck Lever static void 1611d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 161223ec6965SJ. Bruce Fields { 16138687b63aSAl Viro __be32 *p; 161423ec6965SJ. Bruce Fields 1615ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1616ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 161713c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1618e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 161934558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 16209f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 162113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 162234558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 162323ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 162423ec6965SJ. Bruce Fields } 162523ec6965SJ. Bruce Fields 1626cf8cdbe5SAndy Adamson static void 1627d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16281da177e4SLinus Torvalds { 1629ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16301da177e4SLinus Torvalds } 16311da177e4SLinus Torvalds 1632cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16331da177e4SLinus Torvalds { 1634ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1635ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1636cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 16371da177e4SLinus Torvalds } 16381da177e4SLinus Torvalds 1639cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16401da177e4SLinus Torvalds { 16418687b63aSAl Viro __be32 *p; 16421da177e4SLinus Torvalds 164370019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1644cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16451da177e4SLinus Torvalds 16461da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 164713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 164834558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16491da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16501da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 165113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165234558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 16531da177e4SLinus Torvalds } 16541da177e4SLinus Torvalds 1655bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16561da177e4SLinus Torvalds { 1657475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1658475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1659ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1660cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 16611da177e4SLinus Torvalds } 16621da177e4SLinus Torvalds 1663cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 16641da177e4SLinus Torvalds { 16658687b63aSAl Viro __be32 *p; 16661da177e4SLinus Torvalds 1667ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 1668d0b496d2STrond Myklebust encode_open_stateid(xdr, args->context, args->lock_context, 16694fc8796dSTrond Myklebust FMODE_WRITE, hdr->minorversion); 16701da177e4SLinus Torvalds 167113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1672b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1673e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 167434558513SBenny Halevy *p = cpu_to_be32(args->count); 16751da177e4SLinus Torvalds 16761da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 16771da177e4SLinus Torvalds } 16781da177e4SLinus Torvalds 1679cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16801da177e4SLinus Torvalds { 1681ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1682ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 16831da177e4SLinus Torvalds } 16849b7b9fccSAndy Adamson 16855a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16865a5ea0d4SBryan Schumaker { 1687ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 16886fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16895a5ea0d4SBryan Schumaker } 16905a5ea0d4SBryan Schumaker 169199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16929b7b9fccSAndy Adamson /* NFSv4.1 operations */ 16937c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 16947c44f1aeSWeston Andros Adamson struct nfs4_session *session, 16957c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 16967c44f1aeSWeston Andros Adamson { 16977c44f1aeSWeston Andros Adamson __be32 *p; 16987c44f1aeSWeston Andros Adamson 16997c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17007c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 17017c44f1aeSWeston Andros Adamson encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17027c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 17037c44f1aeSWeston Andros Adamson *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH); 17047c44f1aeSWeston Andros Adamson *p = 0; /* use_conn_in_rdma_mode = False */ 17057c44f1aeSWeston Andros Adamson } 17067c44f1aeSWeston Andros Adamson 170799fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 170899fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 170999fe60d0SBenny Halevy struct compound_hdr *hdr) 171099fe60d0SBenny Halevy { 171199fe60d0SBenny Halevy __be32 *p; 1712db8ac8baSWeston Andros Adamson char impl_name[NFS4_OPAQUE_LIMIT]; 1713db8ac8baSWeston Andros Adamson int len = 0; 171499fe60d0SBenny Halevy 171570019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1716cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 171799fe60d0SBenny Halevy 171899fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 171999fe60d0SBenny Halevy 172013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1721e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1722e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1723db8ac8baSWeston Andros Adamson 1724db8ac8baSWeston Andros Adamson if (send_implementation_id && 1725db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1726db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1727db8ac8baSWeston Andros Adamson <= NFS4_OPAQUE_LIMIT + 1) 1728db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1729db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1730db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1731db8ac8baSWeston Andros Adamson 1732db8ac8baSWeston Andros Adamson if (len > 0) { 1733db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1734db8ac8baSWeston Andros Adamson 1735db8ac8baSWeston Andros Adamson encode_string(xdr, 1736db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1737db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1738db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1739db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1740db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1741db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1742db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1743db8ac8baSWeston Andros Adamson } else 1744db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 174599fe60d0SBenny Halevy } 1746fc931582SAndy Adamson 1747fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1748fc931582SAndy Adamson struct nfs41_create_session_args *args, 1749fc931582SAndy Adamson struct compound_hdr *hdr) 1750fc931582SAndy Adamson { 1751fc931582SAndy Adamson __be32 *p; 1752fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1753fc931582SAndy Adamson uint32_t len; 1754fc931582SAndy Adamson struct nfs_client *clp = args->client; 1755f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 17568e0d46e1SMike Sager u32 max_resp_sz_cached; 17578e0d46e1SMike Sager 17588e0d46e1SMike Sager /* 17598e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 17608e0d46e1SMike Sager * 2 is the verifier. 17618e0d46e1SMike Sager */ 17628e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 17638e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1764fc931582SAndy Adamson 1765fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1766fc931582SAndy Adamson clp->cl_ipaddr); 176742edd698SBenny Halevy 1768475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 1769475d4ba0STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12); 1770114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1771e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1772e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1773fc931582SAndy Adamson 1774fc931582SAndy Adamson /* Fore Channel */ 1775c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1776e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1777e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 17788e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1779e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1780e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1781e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1782fc931582SAndy Adamson 1783fc931582SAndy Adamson /* Back Channel */ 1784c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1785e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1786e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1787e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1788e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1789e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1790e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1791fc931582SAndy Adamson 1792e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1793e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1794e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1795fc931582SAndy Adamson 1796fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1797f092075dSChuck Lever *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */ 1798811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1799e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1800e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 180134558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1802fc931582SAndy Adamson } 18030f3e66c6SAndy Adamson 18040f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18050f3e66c6SAndy Adamson struct nfs4_session *session, 18060f3e66c6SAndy Adamson struct compound_hdr *hdr) 18070f3e66c6SAndy Adamson { 1808475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1809475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18100f3e66c6SAndy Adamson } 181118019753SRicardo Labiaga 181266245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 181366245539STrond Myklebust uint64_t clientid, 181466245539STrond Myklebust struct compound_hdr *hdr) 181566245539STrond Myklebust { 181666245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 181766245539STrond Myklebust encode_uint64(xdr, clientid); 181866245539STrond Myklebust } 181966245539STrond Myklebust 182018019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 182118019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 182218019753SRicardo Labiaga struct compound_hdr *hdr) 182318019753SRicardo Labiaga { 1824475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1825475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 182618019753SRicardo Labiaga } 182799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 182899fe60d0SBenny Halevy 18299b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18309b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18319b7b9fccSAndy Adamson struct compound_hdr *hdr) 18329b7b9fccSAndy Adamson { 18339b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18349b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1835fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1836fc01cea9SAndy Adamson struct nfs4_slot *slot; 1837fc01cea9SAndy Adamson __be32 *p; 18389b7b9fccSAndy Adamson 18399b7b9fccSAndy Adamson if (!session) 18409b7b9fccSAndy Adamson return; 18419b7b9fccSAndy Adamson 1842fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1843fc01cea9SAndy Adamson 1844fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1845fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1846fc01cea9SAndy Adamson 1847475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1848fc01cea9SAndy Adamson 1849fc01cea9SAndy Adamson /* 1850fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1851fc01cea9SAndy Adamson */ 1852fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1853fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1854fc01cea9SAndy Adamson __func__, 1855fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1856fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1857fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1858fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1859fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1860fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1861475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 186293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1863e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1864e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 186634558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 18679b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 18689b7b9fccSAndy Adamson } 18699b7b9fccSAndy Adamson 1870b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1871b1f69b75SAndy Adamson static void 18727f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 18737f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 18747f11d8d3SAndy Adamson struct compound_hdr *hdr) 18757f11d8d3SAndy Adamson { 18767f11d8d3SAndy Adamson __be32 *p; 18777f11d8d3SAndy Adamson nfs4_verifier dummy = { 18787f11d8d3SAndy Adamson .data = "dummmmmy", 18797f11d8d3SAndy Adamson }; 18807f11d8d3SAndy Adamson 1881475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr); 1882475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 18837f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 18847f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 18857f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 18867f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 18877f11d8d3SAndy Adamson } 18887f11d8d3SAndy Adamson 18897f11d8d3SAndy Adamson static void 1890b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1891b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1892b1f69b75SAndy Adamson struct compound_hdr *hdr) 1893b1f69b75SAndy Adamson { 1894b1f69b75SAndy Adamson __be32 *p; 1895b1f69b75SAndy Adamson 1896475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 1897475d4ba0STrond Myklebust p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE); 1898b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1899b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1900b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1901b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1902b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1903b1f69b75SAndy Adamson } 1904b1f69b75SAndy Adamson 1905b1f69b75SAndy Adamson static void 1906b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1907b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1908b1f69b75SAndy Adamson struct compound_hdr *hdr) 1909b1f69b75SAndy Adamson { 1910b1f69b75SAndy Adamson __be32 *p; 1911b1f69b75SAndy Adamson 1912475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1913475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1914b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1915b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1916b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1917b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1918b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1919b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1920ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1921475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1922b1f69b75SAndy Adamson 1923b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1924b1f69b75SAndy Adamson __func__, 1925b1f69b75SAndy Adamson args->type, 1926b1f69b75SAndy Adamson args->range.iomode, 1927b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1928b1f69b75SAndy Adamson (unsigned long)args->range.length, 1929b1f69b75SAndy Adamson args->maxcount); 1930b1f69b75SAndy Adamson } 1931863a3c6cSAndy Adamson 1932863a3c6cSAndy Adamson static int 1933863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1934ac7db726SBenny Halevy struct inode *inode, 1935863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1936863a3c6cSAndy Adamson struct compound_hdr *hdr) 1937863a3c6cSAndy Adamson { 1938863a3c6cSAndy Adamson __be32 *p; 1939863a3c6cSAndy Adamson 1940863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1941863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1942863a3c6cSAndy Adamson 1943475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 1944475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1945863a3c6cSAndy Adamson /* Only whole file layouts */ 1946863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19473557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1948ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 1949ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1950ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1951863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1952863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1953863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1954863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1955ac7db726SBenny Halevy 1956ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 1957ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 1958ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 1959475d4ba0STrond Myklebust else 1960475d4ba0STrond Myklebust encode_uint32(xdr, 0); /* no layout-type payload */ 1961863a3c6cSAndy Adamson 1962863a3c6cSAndy Adamson return 0; 1963863a3c6cSAndy Adamson } 1964cbe82603SBenny Halevy 1965cbe82603SBenny Halevy static void 1966cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 1967cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 1968cbe82603SBenny Halevy struct compound_hdr *hdr) 1969cbe82603SBenny Halevy { 1970cbe82603SBenny Halevy __be32 *p; 1971cbe82603SBenny Halevy 1972475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 1973475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 1974cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 1975cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 1976cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 1977cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 1978ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1979cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 1980cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 1981cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 1982ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1983cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 198404a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 198504a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 198604a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 1987475d4ba0STrond Myklebust } else 1988475d4ba0STrond Myklebust encode_uint32(xdr, 0); 1989cbe82603SBenny Halevy } 1990fca78d6dSBryan Schumaker 1991fca78d6dSBryan Schumaker static int 1992fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 1993fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 1994fca78d6dSBryan Schumaker struct compound_hdr *hdr) 1995fca78d6dSBryan Schumaker { 1996475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 1997475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 1998fca78d6dSBryan Schumaker return 0; 1999fca78d6dSBryan Schumaker } 20007d974794SBryan Schumaker 20017d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20027d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20037d974794SBryan Schumaker struct compound_hdr *hdr) 20047d974794SBryan Schumaker { 2005475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2006475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2007ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20087d974794SBryan Schumaker } 20099aeda35fSBryan Schumaker 20109aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20119aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20129aeda35fSBryan Schumaker struct compound_hdr *hdr) 20139aeda35fSBryan Schumaker { 2014ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 2015ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20169aeda35fSBryan Schumaker } 2017b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2018b1f69b75SAndy Adamson 20191da177e4SLinus Torvalds /* 20201da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20211da177e4SLinus Torvalds */ 20221da177e4SLinus Torvalds 202366cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 202466cc0429SBenny Halevy { 202566cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 202666cc0429SBenny Halevy if (args->sa_session) 2027a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 202866cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 202966cc0429SBenny Halevy return 0; 203066cc0429SBenny Halevy } 203166cc0429SBenny Halevy 20321da177e4SLinus Torvalds /* 20331da177e4SLinus Torvalds * Encode an ACCESS request 20341da177e4SLinus Torvalds */ 20359f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20369f06c719SChuck Lever const struct nfs4_accessargs *args) 20371da177e4SLinus Torvalds { 20381da177e4SLinus Torvalds struct compound_hdr hdr = { 203966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20401da177e4SLinus Torvalds }; 20411da177e4SLinus Torvalds 20429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20459f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 20469f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2047d017931cSAndy Adamson encode_nops(&hdr); 20481da177e4SLinus Torvalds } 20491da177e4SLinus Torvalds 20501da177e4SLinus Torvalds /* 20511da177e4SLinus Torvalds * Encode LOOKUP request 20521da177e4SLinus Torvalds */ 20539f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 20549f06c719SChuck Lever const struct nfs4_lookup_arg *args) 20551da177e4SLinus Torvalds { 20561da177e4SLinus Torvalds struct compound_hdr hdr = { 205766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20581da177e4SLinus Torvalds }; 20591da177e4SLinus Torvalds 20609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20619f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20629f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 20639f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 20649f06c719SChuck Lever encode_getfh(xdr, &hdr); 20659f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2066d017931cSAndy Adamson encode_nops(&hdr); 20671da177e4SLinus Torvalds } 20681da177e4SLinus Torvalds 20691da177e4SLinus Torvalds /* 20701da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 20711da177e4SLinus Torvalds */ 20729f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 20739f06c719SChuck Lever struct xdr_stream *xdr, 20749f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 20751da177e4SLinus Torvalds { 20761da177e4SLinus Torvalds struct compound_hdr hdr = { 207766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20781da177e4SLinus Torvalds }; 20791da177e4SLinus Torvalds 20809f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20819f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20829f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 20839f06c719SChuck Lever encode_getfh(xdr, &hdr); 20849f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2085d017931cSAndy Adamson encode_nops(&hdr); 20861da177e4SLinus Torvalds } 20871da177e4SLinus Torvalds 20881da177e4SLinus Torvalds /* 20891da177e4SLinus Torvalds * Encode REMOVE request 20901da177e4SLinus Torvalds */ 20919f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 20929f06c719SChuck Lever const struct nfs_removeargs *args) 20931da177e4SLinus Torvalds { 20941da177e4SLinus Torvalds struct compound_hdr hdr = { 209566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20961da177e4SLinus Torvalds }; 20971da177e4SLinus Torvalds 20989f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20999f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21009f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21019f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2102d017931cSAndy Adamson encode_nops(&hdr); 21031da177e4SLinus Torvalds } 21041da177e4SLinus Torvalds 21051da177e4SLinus Torvalds /* 21061da177e4SLinus Torvalds * Encode RENAME request 21071da177e4SLinus Torvalds */ 21089f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21099f06c719SChuck Lever const struct nfs_renameargs *args) 21101da177e4SLinus Torvalds { 21111da177e4SLinus Torvalds struct compound_hdr hdr = { 211266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21131da177e4SLinus Torvalds }; 21141da177e4SLinus Torvalds 21159f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21169f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21179f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21189f06c719SChuck Lever encode_savefh(xdr, &hdr); 21199f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21209f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2121d017931cSAndy Adamson encode_nops(&hdr); 21221da177e4SLinus Torvalds } 21231da177e4SLinus Torvalds 21241da177e4SLinus Torvalds /* 21251da177e4SLinus Torvalds * Encode LINK request 21261da177e4SLinus Torvalds */ 21279f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21289f06c719SChuck Lever const struct nfs4_link_arg *args) 21291da177e4SLinus Torvalds { 21301da177e4SLinus Torvalds struct compound_hdr hdr = { 213166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21321da177e4SLinus Torvalds }; 21331da177e4SLinus Torvalds 21349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21359f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21369f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21379f06c719SChuck Lever encode_savefh(xdr, &hdr); 21389f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21399f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21409f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21419f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2142d017931cSAndy Adamson encode_nops(&hdr); 21431da177e4SLinus Torvalds } 21441da177e4SLinus Torvalds 21451da177e4SLinus Torvalds /* 21461da177e4SLinus Torvalds * Encode CREATE request 21471da177e4SLinus Torvalds */ 21489f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 21499f06c719SChuck Lever const struct nfs4_create_arg *args) 21501da177e4SLinus Torvalds { 21511da177e4SLinus Torvalds struct compound_hdr hdr = { 215266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21531da177e4SLinus Torvalds }; 21541da177e4SLinus Torvalds 21559f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21569f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21579f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21589f06c719SChuck Lever encode_create(xdr, args, &hdr); 21599f06c719SChuck Lever encode_getfh(xdr, &hdr); 21609f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2161d017931cSAndy Adamson encode_nops(&hdr); 21621da177e4SLinus Torvalds } 21631da177e4SLinus Torvalds 21641da177e4SLinus Torvalds /* 21651da177e4SLinus Torvalds * Encode SYMLINK request 21661da177e4SLinus Torvalds */ 21679f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21689f06c719SChuck Lever const struct nfs4_create_arg *args) 21691da177e4SLinus Torvalds { 21709f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 21711da177e4SLinus Torvalds } 21721da177e4SLinus Torvalds 21731da177e4SLinus Torvalds /* 21741da177e4SLinus Torvalds * Encode GETATTR request 21751da177e4SLinus Torvalds */ 21769f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 21779f06c719SChuck Lever const struct nfs4_getattr_arg *args) 21781da177e4SLinus Torvalds { 21791da177e4SLinus Torvalds struct compound_hdr hdr = { 218066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21811da177e4SLinus Torvalds }; 21821da177e4SLinus Torvalds 21839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21869f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2187d017931cSAndy Adamson encode_nops(&hdr); 21881da177e4SLinus Torvalds } 21891da177e4SLinus Torvalds 21901da177e4SLinus Torvalds /* 21911da177e4SLinus Torvalds * Encode a CLOSE request 21921da177e4SLinus Torvalds */ 21939f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 21949f06c719SChuck Lever struct nfs_closeargs *args) 21951da177e4SLinus Torvalds { 21961da177e4SLinus Torvalds struct compound_hdr hdr = { 219766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21981da177e4SLinus Torvalds }; 21991da177e4SLinus Torvalds 22009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22039f06c719SChuck Lever encode_close(xdr, args, &hdr); 22049f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2205d017931cSAndy Adamson encode_nops(&hdr); 22061da177e4SLinus Torvalds } 22071da177e4SLinus Torvalds 22081da177e4SLinus Torvalds /* 22091da177e4SLinus Torvalds * Encode an OPEN request 22101da177e4SLinus Torvalds */ 22119f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22129f06c719SChuck Lever struct nfs_openargs *args) 22131da177e4SLinus Torvalds { 22141da177e4SLinus Torvalds struct compound_hdr hdr = { 221566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22161da177e4SLinus Torvalds }; 22171da177e4SLinus Torvalds 22189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22209f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22219f06c719SChuck Lever encode_open(xdr, args, &hdr); 22229f06c719SChuck Lever encode_getfh(xdr, &hdr); 22231549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2224d017931cSAndy Adamson encode_nops(&hdr); 22251da177e4SLinus Torvalds } 22261da177e4SLinus Torvalds 22271da177e4SLinus Torvalds /* 22281da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22291da177e4SLinus Torvalds */ 22309f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22319f06c719SChuck Lever struct xdr_stream *xdr, 22329f06c719SChuck Lever struct nfs_open_confirmargs *args) 22331da177e4SLinus Torvalds { 22341da177e4SLinus Torvalds struct compound_hdr hdr = { 2235d017931cSAndy Adamson .nops = 0, 22361da177e4SLinus Torvalds }; 22371da177e4SLinus Torvalds 22389f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22399f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22409f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2241d017931cSAndy Adamson encode_nops(&hdr); 22421da177e4SLinus Torvalds } 22431da177e4SLinus Torvalds 22441da177e4SLinus Torvalds /* 22451da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 22461da177e4SLinus Torvalds */ 22479f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 22489f06c719SChuck Lever struct xdr_stream *xdr, 22499f06c719SChuck Lever struct nfs_openargs *args) 22501da177e4SLinus Torvalds { 22511da177e4SLinus Torvalds struct compound_hdr hdr = { 225266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22531da177e4SLinus Torvalds }; 22541da177e4SLinus Torvalds 22559f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22569f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22579f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22589f06c719SChuck Lever encode_open(xdr, args, &hdr); 22599f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2260d017931cSAndy Adamson encode_nops(&hdr); 22611da177e4SLinus Torvalds } 22621da177e4SLinus Torvalds 22631da177e4SLinus Torvalds /* 22641da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 22651da177e4SLinus Torvalds */ 22669f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 22679f06c719SChuck Lever struct xdr_stream *xdr, 22689f06c719SChuck Lever struct nfs_closeargs *args) 22691da177e4SLinus Torvalds { 22701da177e4SLinus Torvalds struct compound_hdr hdr = { 227166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22721da177e4SLinus Torvalds }; 22731da177e4SLinus Torvalds 22749f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22759f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22769f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22779f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 22789f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2279d017931cSAndy Adamson encode_nops(&hdr); 22801da177e4SLinus Torvalds } 22811da177e4SLinus Torvalds 22821da177e4SLinus Torvalds /* 22831da177e4SLinus Torvalds * Encode a LOCK request 22841da177e4SLinus Torvalds */ 22859f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 22869f06c719SChuck Lever struct nfs_lock_args *args) 22871da177e4SLinus Torvalds { 22881da177e4SLinus Torvalds struct compound_hdr hdr = { 228966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22901da177e4SLinus Torvalds }; 22911da177e4SLinus Torvalds 22929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22939f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22949f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22959f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2296d017931cSAndy Adamson encode_nops(&hdr); 22971da177e4SLinus Torvalds } 22981da177e4SLinus Torvalds 22991da177e4SLinus Torvalds /* 23001da177e4SLinus Torvalds * Encode a LOCKT request 23011da177e4SLinus Torvalds */ 23029f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23039f06c719SChuck Lever struct nfs_lockt_args *args) 23041da177e4SLinus Torvalds { 23051da177e4SLinus Torvalds struct compound_hdr hdr = { 230666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23071da177e4SLinus Torvalds }; 23081da177e4SLinus Torvalds 23099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23109f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23119f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23129f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2313d017931cSAndy Adamson encode_nops(&hdr); 23141da177e4SLinus Torvalds } 23151da177e4SLinus Torvalds 23161da177e4SLinus Torvalds /* 23171da177e4SLinus Torvalds * Encode a LOCKU request 23181da177e4SLinus Torvalds */ 23199f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23209f06c719SChuck Lever struct nfs_locku_args *args) 23211da177e4SLinus Torvalds { 23221da177e4SLinus Torvalds struct compound_hdr hdr = { 232366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23241da177e4SLinus Torvalds }; 23251da177e4SLinus Torvalds 23269f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23279f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23289f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23299f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2330d017931cSAndy Adamson encode_nops(&hdr); 23311da177e4SLinus Torvalds } 23321da177e4SLinus Torvalds 23339f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23349f06c719SChuck Lever struct xdr_stream *xdr, 23359f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2336d3c7b7ccSTrond Myklebust { 2337d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2338d3c7b7ccSTrond Myklebust .minorversion = 0, 2339d3c7b7ccSTrond Myklebust }; 2340d3c7b7ccSTrond Myklebust 23419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23429f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2343d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2344d3c7b7ccSTrond Myklebust } 2345d3c7b7ccSTrond Myklebust 23461da177e4SLinus Torvalds /* 23471da177e4SLinus Torvalds * Encode a READLINK request 23481da177e4SLinus Torvalds */ 23499f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 23509f06c719SChuck Lever const struct nfs4_readlink *args) 23511da177e4SLinus Torvalds { 23521da177e4SLinus Torvalds struct compound_hdr hdr = { 235366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23541da177e4SLinus Torvalds }; 23551da177e4SLinus Torvalds 23569f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23579f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23589f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23599f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2360e3a535e1STrond Myklebust 236128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2362e3a535e1STrond Myklebust args->pgbase, args->pglen); 2363d017931cSAndy Adamson encode_nops(&hdr); 23641da177e4SLinus Torvalds } 23651da177e4SLinus Torvalds 23661da177e4SLinus Torvalds /* 23671da177e4SLinus Torvalds * Encode a READDIR request 23681da177e4SLinus Torvalds */ 23699f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 23709f06c719SChuck Lever const struct nfs4_readdir_arg *args) 23711da177e4SLinus Torvalds { 23721da177e4SLinus Torvalds struct compound_hdr hdr = { 237366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23741da177e4SLinus Torvalds }; 23751da177e4SLinus Torvalds 23769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23779f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23789f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23799f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2380d6ac02dfSTrond Myklebust 238128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2382d6ac02dfSTrond Myklebust args->pgbase, args->count); 2383d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 238428f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2385d6ac02dfSTrond Myklebust args->pgbase, args->count); 2386d017931cSAndy Adamson encode_nops(&hdr); 23871da177e4SLinus Torvalds } 23881da177e4SLinus Torvalds 23891da177e4SLinus Torvalds /* 23901da177e4SLinus Torvalds * Encode a READ request 23911da177e4SLinus Torvalds */ 23929f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 23939f06c719SChuck Lever struct nfs_readargs *args) 23941da177e4SLinus Torvalds { 23951da177e4SLinus Torvalds struct compound_hdr hdr = { 239666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23971da177e4SLinus Torvalds }; 23981da177e4SLinus Torvalds 23999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24009f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24019f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24029f06c719SChuck Lever encode_read(xdr, args, &hdr); 24031da177e4SLinus Torvalds 240428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24051da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24064f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2407d017931cSAndy Adamson encode_nops(&hdr); 24081da177e4SLinus Torvalds } 24091da177e4SLinus Torvalds 24101da177e4SLinus Torvalds /* 24111da177e4SLinus Torvalds * Encode an SETATTR request 24121da177e4SLinus Torvalds */ 24139f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24149f06c719SChuck Lever struct nfs_setattrargs *args) 24151da177e4SLinus Torvalds { 24161da177e4SLinus Torvalds struct compound_hdr hdr = { 241766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24181da177e4SLinus Torvalds }; 24191da177e4SLinus Torvalds 24209f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24219f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24229f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24239f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24249f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2425d017931cSAndy Adamson encode_nops(&hdr); 24261da177e4SLinus Torvalds } 24271da177e4SLinus Torvalds 24281da177e4SLinus Torvalds /* 2429029d105eSJ. Bruce Fields * Encode a GETACL request 2430029d105eSJ. Bruce Fields */ 24319f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2432029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2433029d105eSJ. Bruce Fields { 2434029d105eSJ. Bruce Fields struct compound_hdr hdr = { 243566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2436029d105eSJ. Bruce Fields }; 243728f56694SBenny Halevy uint32_t replen; 2438029d105eSJ. Bruce Fields 24399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24409f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24419f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2442bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 24439f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2444cf8cdbe5SAndy Adamson 244528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2446029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2447bf118a34SAndy Adamson 2448d017931cSAndy Adamson encode_nops(&hdr); 2449029d105eSJ. Bruce Fields } 2450029d105eSJ. Bruce Fields 2451029d105eSJ. Bruce Fields /* 24521da177e4SLinus Torvalds * Encode a WRITE request 24531da177e4SLinus Torvalds */ 24549f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 24559f06c719SChuck Lever struct nfs_writeargs *args) 24561da177e4SLinus Torvalds { 24571da177e4SLinus Torvalds struct compound_hdr hdr = { 245866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24591da177e4SLinus Torvalds }; 24601da177e4SLinus Torvalds 24619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24629f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24639f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24649f06c719SChuck Lever encode_write(xdr, args, &hdr); 24654f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 24667ffd1064SFred Isaman if (args->bitmask) 24679f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2468d017931cSAndy Adamson encode_nops(&hdr); 24691da177e4SLinus Torvalds } 24701da177e4SLinus Torvalds 24711da177e4SLinus Torvalds /* 24721da177e4SLinus Torvalds * a COMMIT request 24731da177e4SLinus Torvalds */ 24749f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 24750b7c0153SFred Isaman struct nfs_commitargs *args) 24761da177e4SLinus Torvalds { 24771da177e4SLinus Torvalds struct compound_hdr hdr = { 247866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24791da177e4SLinus Torvalds }; 24801da177e4SLinus Torvalds 24819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24829f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24839f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24849f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2485d017931cSAndy Adamson encode_nops(&hdr); 24861da177e4SLinus Torvalds } 24871da177e4SLinus Torvalds 24881da177e4SLinus Torvalds /* 24891da177e4SLinus Torvalds * FSINFO request 24901da177e4SLinus Torvalds */ 24919f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 24929f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 24931da177e4SLinus Torvalds { 24941da177e4SLinus Torvalds struct compound_hdr hdr = { 249566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24961da177e4SLinus Torvalds }; 24971da177e4SLinus Torvalds 24989f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24999f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25009f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25019f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2502d017931cSAndy Adamson encode_nops(&hdr); 25031da177e4SLinus Torvalds } 25041da177e4SLinus Torvalds 25051da177e4SLinus Torvalds /* 25061da177e4SLinus Torvalds * a PATHCONF request 25071da177e4SLinus Torvalds */ 25089f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25099f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25101da177e4SLinus Torvalds { 25111da177e4SLinus Torvalds struct compound_hdr hdr = { 251266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25131da177e4SLinus Torvalds }; 25141da177e4SLinus Torvalds 25159f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25169f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25179f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25189f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2519d017931cSAndy Adamson &hdr); 2520d017931cSAndy Adamson encode_nops(&hdr); 25211da177e4SLinus Torvalds } 25221da177e4SLinus Torvalds 25231da177e4SLinus Torvalds /* 25241da177e4SLinus Torvalds * a STATFS request 25251da177e4SLinus Torvalds */ 25269f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25279f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25281da177e4SLinus Torvalds { 25291da177e4SLinus Torvalds struct compound_hdr hdr = { 253066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25311da177e4SLinus Torvalds }; 25321da177e4SLinus Torvalds 25339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25349f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25359f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25369f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2537d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2538d017931cSAndy Adamson encode_nops(&hdr); 25391da177e4SLinus Torvalds } 25401da177e4SLinus Torvalds 25411da177e4SLinus Torvalds /* 25421da177e4SLinus Torvalds * GETATTR_BITMAP request 25431da177e4SLinus Torvalds */ 25449f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 25459f06c719SChuck Lever struct xdr_stream *xdr, 254643652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 25471da177e4SLinus Torvalds { 25481da177e4SLinus Torvalds struct compound_hdr hdr = { 254966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25501da177e4SLinus Torvalds }; 25511da177e4SLinus Torvalds 25529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25549f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 25559f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2556264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 25571da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 25581da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2559d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2560d017931cSAndy Adamson encode_nops(&hdr); 25611da177e4SLinus Torvalds } 25621da177e4SLinus Torvalds 25631da177e4SLinus Torvalds /* 25641da177e4SLinus Torvalds * a RENEW request 25651da177e4SLinus Torvalds */ 25669f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 25679f06c719SChuck Lever struct nfs_client *clp) 25681da177e4SLinus Torvalds { 25691da177e4SLinus Torvalds struct compound_hdr hdr = { 2570d017931cSAndy Adamson .nops = 0, 25711da177e4SLinus Torvalds }; 25721da177e4SLinus Torvalds 25739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2574bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2575d017931cSAndy Adamson encode_nops(&hdr); 25761da177e4SLinus Torvalds } 25771da177e4SLinus Torvalds 25781da177e4SLinus Torvalds /* 25791da177e4SLinus Torvalds * a SETCLIENTID request 25801da177e4SLinus Torvalds */ 25819f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 25829f06c719SChuck Lever struct xdr_stream *xdr, 25839f06c719SChuck Lever struct nfs4_setclientid *sc) 25841da177e4SLinus Torvalds { 25851da177e4SLinus Torvalds struct compound_hdr hdr = { 2586d017931cSAndy Adamson .nops = 0, 25871da177e4SLinus Torvalds }; 25881da177e4SLinus Torvalds 25899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25909f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2591d017931cSAndy Adamson encode_nops(&hdr); 25921da177e4SLinus Torvalds } 25931da177e4SLinus Torvalds 25941da177e4SLinus Torvalds /* 25951da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 25961da177e4SLinus Torvalds */ 25979f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 25989f06c719SChuck Lever struct xdr_stream *xdr, 25999f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26001da177e4SLinus Torvalds { 26011da177e4SLinus Torvalds struct compound_hdr hdr = { 2602d017931cSAndy Adamson .nops = 0, 26031da177e4SLinus Torvalds }; 2604dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 26051da177e4SLinus Torvalds 26069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26079f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 26089f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 26099f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2610d017931cSAndy Adamson encode_nops(&hdr); 26111da177e4SLinus Torvalds } 26121da177e4SLinus Torvalds 26131da177e4SLinus Torvalds /* 26141da177e4SLinus Torvalds * DELEGRETURN request 26151da177e4SLinus Torvalds */ 26169f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26179f06c719SChuck Lever struct xdr_stream *xdr, 26189f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26191da177e4SLinus Torvalds { 26201da177e4SLinus Torvalds struct compound_hdr hdr = { 262166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26221da177e4SLinus Torvalds }; 26231da177e4SLinus Torvalds 26249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26269f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26279f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2628e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2629d017931cSAndy Adamson encode_nops(&hdr); 26301da177e4SLinus Torvalds } 26311da177e4SLinus Torvalds 26321da177e4SLinus Torvalds /* 2633683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2634683b57b4STrond Myklebust */ 26359f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26369f06c719SChuck Lever struct xdr_stream *xdr, 26379f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2638683b57b4STrond Myklebust { 2639683b57b4STrond Myklebust struct compound_hdr hdr = { 264066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2641683b57b4STrond Myklebust }; 264228f56694SBenny Halevy uint32_t replen; 2643683b57b4STrond Myklebust 26449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26459f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26469f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 26479f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 264828f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 26499f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2650cf8cdbe5SAndy Adamson 265128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2652683b57b4STrond Myklebust 0, PAGE_SIZE); 2653d017931cSAndy Adamson encode_nops(&hdr); 2654683b57b4STrond Myklebust } 2655683b57b4STrond Myklebust 26565a5ea0d4SBryan Schumaker /* 26575a5ea0d4SBryan Schumaker * Encode SECINFO request 26585a5ea0d4SBryan Schumaker */ 26595a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 26605a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 26615a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 26625a5ea0d4SBryan Schumaker { 26635a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 26645a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26655a5ea0d4SBryan Schumaker }; 26665a5ea0d4SBryan Schumaker 26675a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 26685a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 26695a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 26705a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 26715a5ea0d4SBryan Schumaker encode_nops(&hdr); 26725a5ea0d4SBryan Schumaker } 26735a5ea0d4SBryan Schumaker 267499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 267599fe60d0SBenny Halevy /* 26767c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 26777c44f1aeSWeston Andros Adamson */ 26787c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 26797c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 26807c44f1aeSWeston Andros Adamson struct nfs_client *clp) 26817c44f1aeSWeston Andros Adamson { 26827c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 26837c44f1aeSWeston Andros Adamson .minorversion = clp->cl_mvops->minor_version, 26847c44f1aeSWeston Andros Adamson }; 26857c44f1aeSWeston Andros Adamson 26867c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 26877c44f1aeSWeston Andros Adamson encode_bind_conn_to_session(xdr, clp->cl_session, &hdr); 26887c44f1aeSWeston Andros Adamson encode_nops(&hdr); 26897c44f1aeSWeston Andros Adamson } 26907c44f1aeSWeston Andros Adamson 26917c44f1aeSWeston Andros Adamson /* 269299fe60d0SBenny Halevy * EXCHANGE_ID request 269399fe60d0SBenny Halevy */ 26949f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 26959f06c719SChuck Lever struct xdr_stream *xdr, 269699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 269799fe60d0SBenny Halevy { 269899fe60d0SBenny Halevy struct compound_hdr hdr = { 2699a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 270099fe60d0SBenny Halevy }; 270199fe60d0SBenny Halevy 27029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27039f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 270499fe60d0SBenny Halevy encode_nops(&hdr); 270599fe60d0SBenny Halevy } 27062050f0ccSAndy Adamson 27072050f0ccSAndy Adamson /* 2708fc931582SAndy Adamson * a CREATE_SESSION request 2709fc931582SAndy Adamson */ 27109f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27119f06c719SChuck Lever struct xdr_stream *xdr, 2712fc931582SAndy Adamson struct nfs41_create_session_args *args) 2713fc931582SAndy Adamson { 2714fc931582SAndy Adamson struct compound_hdr hdr = { 2715a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2716fc931582SAndy Adamson }; 2717fc931582SAndy Adamson 27189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27199f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2720fc931582SAndy Adamson encode_nops(&hdr); 2721fc931582SAndy Adamson } 2722fc931582SAndy Adamson 2723fc931582SAndy Adamson /* 27240f3e66c6SAndy Adamson * a DESTROY_SESSION request 27250f3e66c6SAndy Adamson */ 27269f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 27279f06c719SChuck Lever struct xdr_stream *xdr, 27280f3e66c6SAndy Adamson struct nfs4_session *session) 27290f3e66c6SAndy Adamson { 27300f3e66c6SAndy Adamson struct compound_hdr hdr = { 2731a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 27320f3e66c6SAndy Adamson }; 27330f3e66c6SAndy Adamson 27349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27359f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 27360f3e66c6SAndy Adamson encode_nops(&hdr); 27370f3e66c6SAndy Adamson } 27380f3e66c6SAndy Adamson 27390f3e66c6SAndy Adamson /* 274066245539STrond Myklebust * a DESTROY_CLIENTID request 274166245539STrond Myklebust */ 274266245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 274366245539STrond Myklebust struct xdr_stream *xdr, 274466245539STrond Myklebust struct nfs_client *clp) 274566245539STrond Myklebust { 274666245539STrond Myklebust struct compound_hdr hdr = { 274766245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 274866245539STrond Myklebust }; 274966245539STrond Myklebust 275066245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 275166245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 275266245539STrond Myklebust encode_nops(&hdr); 275366245539STrond Myklebust } 275466245539STrond Myklebust 275566245539STrond Myklebust /* 2756fc01cea9SAndy Adamson * a SEQUENCE request 2757fc01cea9SAndy Adamson */ 27589f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2759fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2760fc01cea9SAndy Adamson { 2761fc01cea9SAndy Adamson struct compound_hdr hdr = { 2762fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2763fc01cea9SAndy Adamson }; 2764fc01cea9SAndy Adamson 27659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27669f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2767fc01cea9SAndy Adamson encode_nops(&hdr); 2768fc01cea9SAndy Adamson } 2769fc01cea9SAndy Adamson 2770fc01cea9SAndy Adamson /* 27712050f0ccSAndy Adamson * a GET_LEASE_TIME request 27722050f0ccSAndy Adamson */ 27739f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 27749f06c719SChuck Lever struct xdr_stream *xdr, 27752050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 27762050f0ccSAndy Adamson { 27772050f0ccSAndy Adamson struct compound_hdr hdr = { 27782050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 27792050f0ccSAndy Adamson }; 2780dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27812050f0ccSAndy Adamson 27829f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27839f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 27849f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27859f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 27862050f0ccSAndy Adamson encode_nops(&hdr); 27872050f0ccSAndy Adamson } 278818019753SRicardo Labiaga 278918019753SRicardo Labiaga /* 279018019753SRicardo Labiaga * a RECLAIM_COMPLETE request 279118019753SRicardo Labiaga */ 27929f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 27939f06c719SChuck Lever struct xdr_stream *xdr, 279418019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 279518019753SRicardo Labiaga { 279618019753SRicardo Labiaga struct compound_hdr hdr = { 279718019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 279818019753SRicardo Labiaga }; 279918019753SRicardo Labiaga 28009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28029f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 280318019753SRicardo Labiaga encode_nops(&hdr); 280418019753SRicardo Labiaga } 280518019753SRicardo Labiaga 2806b1f69b75SAndy Adamson /* 28077f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28087f11d8d3SAndy Adamson */ 28097f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28107f11d8d3SAndy Adamson struct xdr_stream *xdr, 28117f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 28127f11d8d3SAndy Adamson { 28137f11d8d3SAndy Adamson struct compound_hdr hdr = { 28147f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 28157f11d8d3SAndy Adamson }; 28167f11d8d3SAndy Adamson 28177f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 28187f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 28197f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 28207f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 28217f11d8d3SAndy Adamson encode_nops(&hdr); 28227f11d8d3SAndy Adamson } 28237f11d8d3SAndy Adamson 28247f11d8d3SAndy Adamson /* 2825b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2826b1f69b75SAndy Adamson */ 28279f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28289f06c719SChuck Lever struct xdr_stream *xdr, 2829b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2830b1f69b75SAndy Adamson { 2831b1f69b75SAndy Adamson struct compound_hdr hdr = { 2832b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2833b1f69b75SAndy Adamson }; 2834b1f69b75SAndy Adamson 28359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28369f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28379f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2838b1f69b75SAndy Adamson 2839b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2840b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2841b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2842b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2843b1f69b75SAndy Adamson args->pdev->pglen); 2844b1f69b75SAndy Adamson 2845b1f69b75SAndy Adamson encode_nops(&hdr); 2846b1f69b75SAndy Adamson } 2847b1f69b75SAndy Adamson 2848b1f69b75SAndy Adamson /* 2849b1f69b75SAndy Adamson * Encode LAYOUTGET request 2850b1f69b75SAndy Adamson */ 28519f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 28529f06c719SChuck Lever struct xdr_stream *xdr, 2853b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2854b1f69b75SAndy Adamson { 2855b1f69b75SAndy Adamson struct compound_hdr hdr = { 2856b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2857b1f69b75SAndy Adamson }; 2858b1f69b75SAndy Adamson 28599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28619f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 28629f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 286335124a09SWeston Andros Adamson 286435124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 286535124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 286635124a09SWeston Andros Adamson 2867b1f69b75SAndy Adamson encode_nops(&hdr); 2868b1f69b75SAndy Adamson } 2869863a3c6cSAndy Adamson 2870863a3c6cSAndy Adamson /* 2871863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2872863a3c6cSAndy Adamson */ 2873cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2874863a3c6cSAndy Adamson struct xdr_stream *xdr, 2875863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2876863a3c6cSAndy Adamson { 2877ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2878ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2879863a3c6cSAndy Adamson struct compound_hdr hdr = { 2880863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2881863a3c6cSAndy Adamson }; 2882863a3c6cSAndy Adamson 2883863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2884863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2885863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2886ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2887863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2888863a3c6cSAndy Adamson encode_nops(&hdr); 2889cbe82603SBenny Halevy } 2890cbe82603SBenny Halevy 2891cbe82603SBenny Halevy /* 2892cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2893cbe82603SBenny Halevy */ 2894cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2895cbe82603SBenny Halevy struct xdr_stream *xdr, 2896cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2897cbe82603SBenny Halevy { 2898cbe82603SBenny Halevy struct compound_hdr hdr = { 2899cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2900cbe82603SBenny Halevy }; 2901cbe82603SBenny Halevy 2902cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2903cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2904cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2905cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2906cbe82603SBenny Halevy encode_nops(&hdr); 2907863a3c6cSAndy Adamson } 2908fca78d6dSBryan Schumaker 2909fca78d6dSBryan Schumaker /* 2910fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2911fca78d6dSBryan Schumaker */ 2912fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2913fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2914fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2915fca78d6dSBryan Schumaker { 2916fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2917fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2918fca78d6dSBryan Schumaker }; 2919fca78d6dSBryan Schumaker 2920fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2921fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2922fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2923fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2924fca78d6dSBryan Schumaker encode_nops(&hdr); 2925fca78d6dSBryan Schumaker return 0; 2926fca78d6dSBryan Schumaker } 29277d974794SBryan Schumaker 29287d974794SBryan Schumaker /* 29297d974794SBryan Schumaker * Encode TEST_STATEID request 29307d974794SBryan Schumaker */ 29317d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29327d974794SBryan Schumaker struct xdr_stream *xdr, 29337d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29347d974794SBryan Schumaker { 29357d974794SBryan Schumaker struct compound_hdr hdr = { 29367d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29377d974794SBryan Schumaker }; 29387d974794SBryan Schumaker 29397d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29407d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29417d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 29427d974794SBryan Schumaker encode_nops(&hdr); 29437d974794SBryan Schumaker } 29449aeda35fSBryan Schumaker 29459aeda35fSBryan Schumaker /* 29469aeda35fSBryan Schumaker * Encode FREE_STATEID request 29479aeda35fSBryan Schumaker */ 29489aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 29499aeda35fSBryan Schumaker struct xdr_stream *xdr, 29509aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 29519aeda35fSBryan Schumaker { 29529aeda35fSBryan Schumaker struct compound_hdr hdr = { 29539aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29549aeda35fSBryan Schumaker }; 29559aeda35fSBryan Schumaker 29569aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29579aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29589aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 29599aeda35fSBryan Schumaker encode_nops(&hdr); 29609aeda35fSBryan Schumaker } 296199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 296299fe60d0SBenny Halevy 2963686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2964686841b3SBenny Halevy { 2965686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2966686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2967686841b3SBenny Halevy func, xdr->end - xdr->p); 2968686841b3SBenny Halevy } 29691da177e4SLinus Torvalds 2970683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 29711da177e4SLinus Torvalds { 29728687b63aSAl Viro __be32 *p; 29731da177e4SLinus Torvalds 2974c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2975c0eae66eSBenny Halevy if (unlikely(!p)) 2976c0eae66eSBenny Halevy goto out_overflow; 2977cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2978c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2979c0eae66eSBenny Halevy if (unlikely(!p)) 2980c0eae66eSBenny Halevy goto out_overflow; 29811da177e4SLinus Torvalds *string = (char *)p; 29821da177e4SLinus Torvalds return 0; 2983c0eae66eSBenny Halevy out_overflow: 2984c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2985c0eae66eSBenny Halevy return -EIO; 29861da177e4SLinus Torvalds } 29871da177e4SLinus Torvalds 29881da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 29891da177e4SLinus Torvalds { 29908687b63aSAl Viro __be32 *p; 29911da177e4SLinus Torvalds 2992c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2993c0eae66eSBenny Halevy if (unlikely(!p)) 2994c0eae66eSBenny Halevy goto out_overflow; 29956f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2996cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 29971da177e4SLinus Torvalds 2998c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2999c0eae66eSBenny Halevy if (unlikely(!p)) 3000c0eae66eSBenny Halevy goto out_overflow; 30011da177e4SLinus Torvalds hdr->tag = (char *)p; 30021da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3003cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3004aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3005aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30061da177e4SLinus Torvalds return 0; 3007c0eae66eSBenny Halevy out_overflow: 3008c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3009c0eae66eSBenny Halevy return -EIO; 30101da177e4SLinus Torvalds } 30111da177e4SLinus Torvalds 30121da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 30131da177e4SLinus Torvalds { 30148687b63aSAl Viro __be32 *p; 30151da177e4SLinus Torvalds uint32_t opnum; 30161da177e4SLinus Torvalds int32_t nfserr; 30171da177e4SLinus Torvalds 3018c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3019c0eae66eSBenny Halevy if (unlikely(!p)) 3020c0eae66eSBenny Halevy goto out_overflow; 30216f723f77SBenny Halevy opnum = be32_to_cpup(p++); 30221da177e4SLinus Torvalds if (opnum != expected) { 3023fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30241da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30251da177e4SLinus Torvalds opnum, expected); 30261da177e4SLinus Torvalds return -EIO; 30271da177e4SLinus Torvalds } 3028cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 30291da177e4SLinus Torvalds if (nfserr != NFS_OK) 3030856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 30311da177e4SLinus Torvalds return 0; 3032c0eae66eSBenny Halevy out_overflow: 3033c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3034c0eae66eSBenny Halevy return -EIO; 30351da177e4SLinus Torvalds } 30361da177e4SLinus Torvalds 30371da177e4SLinus Torvalds /* Dummy routine */ 3038adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 30391da177e4SLinus Torvalds { 30408687b63aSAl Viro __be32 *p; 3041683b57b4STrond Myklebust unsigned int strlen; 30421da177e4SLinus Torvalds char *str; 30431da177e4SLinus Torvalds 3044c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3045c0eae66eSBenny Halevy if (likely(p)) 30461da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3047c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3048c0eae66eSBenny Halevy return -EIO; 30491da177e4SLinus Torvalds } 30501da177e4SLinus Torvalds 30511da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 30521da177e4SLinus Torvalds { 30538687b63aSAl Viro uint32_t bmlen; 30548687b63aSAl Viro __be32 *p; 30551da177e4SLinus Torvalds 3056c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3057c0eae66eSBenny Halevy if (unlikely(!p)) 3058c0eae66eSBenny Halevy goto out_overflow; 3059cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 30601da177e4SLinus Torvalds 3061dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3062c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3063c0eae66eSBenny Halevy if (unlikely(!p)) 3064c0eae66eSBenny Halevy goto out_overflow; 30651da177e4SLinus Torvalds if (bmlen > 0) { 30666f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3067dae100c2SFred Isaman if (bmlen > 1) { 3068dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3069dae100c2SFred Isaman if (bmlen > 2) 3070dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3071dae100c2SFred Isaman } 30721da177e4SLinus Torvalds } 30731da177e4SLinus Torvalds return 0; 3074c0eae66eSBenny Halevy out_overflow: 3075c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3076c0eae66eSBenny Halevy return -EIO; 30771da177e4SLinus Torvalds } 30781da177e4SLinus Torvalds 3079256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 30801da177e4SLinus Torvalds { 30818687b63aSAl Viro __be32 *p; 30821da177e4SLinus Torvalds 3083c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3084c0eae66eSBenny Halevy if (unlikely(!p)) 3085c0eae66eSBenny Halevy goto out_overflow; 3086cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3087256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 30881da177e4SLinus Torvalds return 0; 3089c0eae66eSBenny Halevy out_overflow: 3090c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3091c0eae66eSBenny Halevy return -EIO; 30921da177e4SLinus Torvalds } 30931da177e4SLinus Torvalds 30941da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 30951da177e4SLinus Torvalds { 30961da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 30973388bff5SRoman Borisov int ret; 30983388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 30993388bff5SRoman Borisov if (unlikely(ret < 0)) 31003388bff5SRoman Borisov return ret; 31011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31021da177e4SLinus Torvalds } else 3103dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3104dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3105dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31061da177e4SLinus Torvalds return 0; 31071da177e4SLinus Torvalds } 31081da177e4SLinus Torvalds 31091da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31101da177e4SLinus Torvalds { 31118687b63aSAl Viro __be32 *p; 3112409924e4STrond Myklebust int ret = 0; 31131da177e4SLinus Torvalds 31141da177e4SLinus Torvalds *type = 0; 31151da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31161da177e4SLinus Torvalds return -EIO; 31171da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3118c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3119c0eae66eSBenny Halevy if (unlikely(!p)) 3120c0eae66eSBenny Halevy goto out_overflow; 3121cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31221da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31233110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31241da177e4SLinus Torvalds return -EIO; 31251da177e4SLinus Torvalds } 31261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3127409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 31281da177e4SLinus Torvalds } 3129bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3130409924e4STrond Myklebust return ret; 3131c0eae66eSBenny Halevy out_overflow: 3132c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3133c0eae66eSBenny Halevy return -EIO; 31341da177e4SLinus Torvalds } 31351da177e4SLinus Torvalds 3136264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3137264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3138264e6351SChuck Lever { 3139264e6351SChuck Lever __be32 *p; 3140264e6351SChuck Lever 3141264e6351SChuck Lever *type = 0; 3142264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3143264e6351SChuck Lever return -EIO; 3144264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3145264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3146264e6351SChuck Lever if (unlikely(!p)) 3147264e6351SChuck Lever goto out_overflow; 3148264e6351SChuck Lever *type = be32_to_cpup(p); 3149264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3150264e6351SChuck Lever } 3151264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3152264e6351SChuck Lever return 0; 3153264e6351SChuck Lever out_overflow: 3154264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3155264e6351SChuck Lever return -EIO; 3156264e6351SChuck Lever } 3157264e6351SChuck Lever 31581da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 31591da177e4SLinus Torvalds { 31608687b63aSAl Viro __be32 *p; 3161409924e4STrond Myklebust int ret = 0; 31621da177e4SLinus Torvalds 31631da177e4SLinus Torvalds *change = 0; 31641da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 31651da177e4SLinus Torvalds return -EIO; 31661da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3167c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3168c0eae66eSBenny Halevy if (unlikely(!p)) 3169c0eae66eSBenny Halevy goto out_overflow; 3170cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 31711da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3172409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 31731da177e4SLinus Torvalds } 31743110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 31751da177e4SLinus Torvalds (unsigned long long)*change); 3176409924e4STrond Myklebust return ret; 3177c0eae66eSBenny Halevy out_overflow: 3178c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3179c0eae66eSBenny Halevy return -EIO; 31801da177e4SLinus Torvalds } 31811da177e4SLinus Torvalds 31821da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 31831da177e4SLinus Torvalds { 31848687b63aSAl Viro __be32 *p; 3185409924e4STrond Myklebust int ret = 0; 31861da177e4SLinus Torvalds 31871da177e4SLinus Torvalds *size = 0; 31881da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 31891da177e4SLinus Torvalds return -EIO; 31901da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3191c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3192c0eae66eSBenny Halevy if (unlikely(!p)) 3193c0eae66eSBenny Halevy goto out_overflow; 3194cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 31951da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3196409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 31971da177e4SLinus Torvalds } 31983110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3199409924e4STrond Myklebust return ret; 3200c0eae66eSBenny Halevy out_overflow: 3201c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3202c0eae66eSBenny Halevy return -EIO; 32031da177e4SLinus Torvalds } 32041da177e4SLinus Torvalds 32051da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32061da177e4SLinus Torvalds { 32078687b63aSAl Viro __be32 *p; 32081da177e4SLinus Torvalds 32091da177e4SLinus Torvalds *res = 0; 32101da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32111da177e4SLinus Torvalds return -EIO; 32121da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3213c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3214c0eae66eSBenny Halevy if (unlikely(!p)) 3215c0eae66eSBenny Halevy goto out_overflow; 3216cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32171da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32181da177e4SLinus Torvalds } 32193110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32201da177e4SLinus Torvalds return 0; 3221c0eae66eSBenny Halevy out_overflow: 3222c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3223c0eae66eSBenny Halevy return -EIO; 32241da177e4SLinus Torvalds } 32251da177e4SLinus Torvalds 32261da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32271da177e4SLinus Torvalds { 32288687b63aSAl Viro __be32 *p; 32291da177e4SLinus Torvalds 32301da177e4SLinus Torvalds *res = 0; 32311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32321da177e4SLinus Torvalds return -EIO; 32331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3234c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3235c0eae66eSBenny Halevy if (unlikely(!p)) 3236c0eae66eSBenny Halevy goto out_overflow; 3237cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 32391da177e4SLinus Torvalds } 32403110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 32411da177e4SLinus Torvalds return 0; 3242c0eae66eSBenny Halevy out_overflow: 3243c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3244c0eae66eSBenny Halevy return -EIO; 32451da177e4SLinus Torvalds } 32461da177e4SLinus Torvalds 32478b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 32481da177e4SLinus Torvalds { 32498687b63aSAl Viro __be32 *p; 3250409924e4STrond Myklebust int ret = 0; 32511da177e4SLinus Torvalds 32521da177e4SLinus Torvalds fsid->major = 0; 32531da177e4SLinus Torvalds fsid->minor = 0; 32541da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 32551da177e4SLinus Torvalds return -EIO; 32561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3257c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3258c0eae66eSBenny Halevy if (unlikely(!p)) 3259c0eae66eSBenny Halevy goto out_overflow; 32603ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3261cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 32621da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3263409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 32641da177e4SLinus Torvalds } 32653110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 32661da177e4SLinus Torvalds (unsigned long long)fsid->major, 32671da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3268409924e4STrond Myklebust return ret; 3269c0eae66eSBenny Halevy out_overflow: 3270c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3271c0eae66eSBenny Halevy return -EIO; 32721da177e4SLinus Torvalds } 32731da177e4SLinus Torvalds 32741da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32751da177e4SLinus Torvalds { 32768687b63aSAl Viro __be32 *p; 32771da177e4SLinus Torvalds 32781da177e4SLinus Torvalds *res = 60; 32791da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 32801da177e4SLinus Torvalds return -EIO; 32811da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3282c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3283c0eae66eSBenny Halevy if (unlikely(!p)) 3284c0eae66eSBenny Halevy goto out_overflow; 3285cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 32871da177e4SLinus Torvalds } 32883110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 32891da177e4SLinus Torvalds return 0; 3290c0eae66eSBenny Halevy out_overflow: 3291c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3292c0eae66eSBenny Halevy return -EIO; 32931da177e4SLinus Torvalds } 32941da177e4SLinus Torvalds 3295ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3296ae42c70aSBryan Schumaker { 3297ae42c70aSBryan Schumaker __be32 *p; 3298ae42c70aSBryan Schumaker 3299ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3300ae42c70aSBryan Schumaker return -EIO; 3301ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3302ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3303ae42c70aSBryan Schumaker if (unlikely(!p)) 3304ae42c70aSBryan Schumaker goto out_overflow; 3305ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3306ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3307ae42c70aSBryan Schumaker } 3308ae42c70aSBryan Schumaker return 0; 3309ae42c70aSBryan Schumaker out_overflow: 3310ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3311ae42c70aSBryan Schumaker return -EIO; 3312ae42c70aSBryan Schumaker } 3313ae42c70aSBryan Schumaker 3314ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3315ae42c70aSBryan Schumaker { 3316ae42c70aSBryan Schumaker __be32 *p; 3317ae42c70aSBryan Schumaker int len; 3318ae42c70aSBryan Schumaker 33197ad07353STrond Myklebust if (fh != NULL) 3320ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3321ae42c70aSBryan Schumaker 3322ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3323ae42c70aSBryan Schumaker return -EIO; 3324ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3325ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3326ae42c70aSBryan Schumaker if (unlikely(!p)) 3327ae42c70aSBryan Schumaker goto out_overflow; 3328ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3329ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3330ae42c70aSBryan Schumaker return -EIO; 3331ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3332ae42c70aSBryan Schumaker if (unlikely(!p)) 3333ae42c70aSBryan Schumaker goto out_overflow; 33347ad07353STrond Myklebust if (fh != NULL) { 3335ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 33367ad07353STrond Myklebust fh->size = len; 33377ad07353STrond Myklebust } 3338ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3339ae42c70aSBryan Schumaker } 3340ae42c70aSBryan Schumaker return 0; 3341ae42c70aSBryan Schumaker out_overflow: 3342ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3343ae42c70aSBryan Schumaker return -EIO; 3344ae42c70aSBryan Schumaker } 3345ae42c70aSBryan Schumaker 33461da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33471da177e4SLinus Torvalds { 33488687b63aSAl Viro __be32 *p; 33491da177e4SLinus Torvalds 33501da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 33511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 33521da177e4SLinus Torvalds return -EIO; 33531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3354c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3355c0eae66eSBenny Halevy if (unlikely(!p)) 3356c0eae66eSBenny Halevy goto out_overflow; 3357cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 33591da177e4SLinus Torvalds } 33603110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 33611da177e4SLinus Torvalds return 0; 3362c0eae66eSBenny Halevy out_overflow: 3363c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3364c0eae66eSBenny Halevy return -EIO; 33651da177e4SLinus Torvalds } 33661da177e4SLinus Torvalds 33671da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 33681da177e4SLinus Torvalds { 33698687b63aSAl Viro __be32 *p; 3370409924e4STrond Myklebust int ret = 0; 33711da177e4SLinus Torvalds 33721da177e4SLinus Torvalds *fileid = 0; 33731da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 33741da177e4SLinus Torvalds return -EIO; 33751da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3376c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3377c0eae66eSBenny Halevy if (unlikely(!p)) 3378c0eae66eSBenny Halevy goto out_overflow; 3379cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 33801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3381409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 33821da177e4SLinus Torvalds } 33833110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3384409924e4STrond Myklebust return ret; 3385c0eae66eSBenny Halevy out_overflow: 3386c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3387c0eae66eSBenny Halevy return -EIO; 33881da177e4SLinus Torvalds } 33891da177e4SLinus Torvalds 339099baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 339199baf625SManoj Naik { 33928687b63aSAl Viro __be32 *p; 3393409924e4STrond Myklebust int ret = 0; 339499baf625SManoj Naik 339599baf625SManoj Naik *fileid = 0; 339699baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 339799baf625SManoj Naik return -EIO; 339899baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3399c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3400c0eae66eSBenny Halevy if (unlikely(!p)) 3401c0eae66eSBenny Halevy goto out_overflow; 3402cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 340399baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 340428331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 340599baf625SManoj Naik } 34063110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3407409924e4STrond Myklebust return ret; 3408c0eae66eSBenny Halevy out_overflow: 3409c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3410c0eae66eSBenny Halevy return -EIO; 341199baf625SManoj Naik } 341299baf625SManoj Naik 34131da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34141da177e4SLinus Torvalds { 34158687b63aSAl Viro __be32 *p; 34161da177e4SLinus Torvalds int status = 0; 34171da177e4SLinus Torvalds 34181da177e4SLinus Torvalds *res = 0; 34191da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34201da177e4SLinus Torvalds return -EIO; 34211da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3422c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3423c0eae66eSBenny Halevy if (unlikely(!p)) 3424c0eae66eSBenny Halevy goto out_overflow; 3425cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34271da177e4SLinus Torvalds } 34283110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34291da177e4SLinus Torvalds return status; 3430c0eae66eSBenny Halevy out_overflow: 3431c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3432c0eae66eSBenny Halevy return -EIO; 34331da177e4SLinus Torvalds } 34341da177e4SLinus Torvalds 34351da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34361da177e4SLinus Torvalds { 34378687b63aSAl Viro __be32 *p; 34381da177e4SLinus Torvalds int status = 0; 34391da177e4SLinus Torvalds 34401da177e4SLinus Torvalds *res = 0; 34411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 34421da177e4SLinus Torvalds return -EIO; 34431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3444c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3445c0eae66eSBenny Halevy if (unlikely(!p)) 3446c0eae66eSBenny Halevy goto out_overflow; 3447cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34481da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 34491da177e4SLinus Torvalds } 34503110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 34511da177e4SLinus Torvalds return status; 3452c0eae66eSBenny Halevy out_overflow: 3453c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3454c0eae66eSBenny Halevy return -EIO; 34551da177e4SLinus Torvalds } 34561da177e4SLinus Torvalds 34571da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34581da177e4SLinus Torvalds { 34598687b63aSAl Viro __be32 *p; 34601da177e4SLinus Torvalds int status = 0; 34611da177e4SLinus Torvalds 34621da177e4SLinus Torvalds *res = 0; 34631da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 34641da177e4SLinus Torvalds return -EIO; 34651da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3466c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3467c0eae66eSBenny Halevy if (unlikely(!p)) 3468c0eae66eSBenny Halevy goto out_overflow; 3469cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 34711da177e4SLinus Torvalds } 34723110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 34731da177e4SLinus Torvalds return status; 3474c0eae66eSBenny Halevy out_overflow: 3475c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3476c0eae66eSBenny Halevy return -EIO; 34771da177e4SLinus Torvalds } 34781da177e4SLinus Torvalds 34797aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 34807aaa0b3bSManoj Naik { 3481464ad6b1SChuck Lever u32 n; 34828687b63aSAl Viro __be32 *p; 34837aaa0b3bSManoj Naik int status = 0; 34847aaa0b3bSManoj Naik 3485c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3486c0eae66eSBenny Halevy if (unlikely(!p)) 3487c0eae66eSBenny Halevy goto out_overflow; 3488cccddf4fSBenny Halevy n = be32_to_cpup(p); 348933a43f28SAndy Adamson if (n == 0) 349033a43f28SAndy Adamson goto root_path; 349102a2976cSChuck Lever dprintk("pathname4: "); 34927aaa0b3bSManoj Naik path->ncomponents = 0; 34937aaa0b3bSManoj Naik while (path->ncomponents < n) { 34947aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 34957aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 34967aaa0b3bSManoj Naik if (unlikely(status != 0)) 34977aaa0b3bSManoj Naik goto out_eio; 349895a13f7bSTrond Myklebust ifdebug (XDR) 349902a2976cSChuck Lever pr_cont("%s%.*s ", 350002a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 350102a2976cSChuck Lever component->len, component->data); 35027aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 35037aaa0b3bSManoj Naik path->ncomponents++; 35047aaa0b3bSManoj Naik else { 35057aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 35067aaa0b3bSManoj Naik goto out_eio; 35077aaa0b3bSManoj Naik } 35087aaa0b3bSManoj Naik } 35097aaa0b3bSManoj Naik out: 35107aaa0b3bSManoj Naik return status; 351133a43f28SAndy Adamson root_path: 351233a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 351333a43f28SAndy Adamson path->ncomponents = 1; 351433a43f28SAndy Adamson path->components[0].len=0; 351533a43f28SAndy Adamson path->components[0].data=NULL; 351602a2976cSChuck Lever dprintk("pathname4: /\n"); 351733a43f28SAndy Adamson goto out; 35187aaa0b3bSManoj Naik out_eio: 35197aaa0b3bSManoj Naik dprintk(" status %d", status); 35207aaa0b3bSManoj Naik status = -EIO; 35217aaa0b3bSManoj Naik goto out; 3522c0eae66eSBenny Halevy out_overflow: 3523c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3524c0eae66eSBenny Halevy return -EIO; 35257aaa0b3bSManoj Naik } 35267aaa0b3bSManoj Naik 35277aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3528683b57b4STrond Myklebust { 3529683b57b4STrond Myklebust int n; 35308687b63aSAl Viro __be32 *p; 3531683b57b4STrond Myklebust int status = -EIO; 3532683b57b4STrond Myklebust 3533683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3534683b57b4STrond Myklebust goto out; 3535683b57b4STrond Myklebust status = 0; 3536683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3537683b57b4STrond Myklebust goto out; 35388b7e3f49STrond Myklebust status = -EIO; 35398b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 35408b7e3f49STrond Myklebust if (unlikely(res == NULL)) 35418b7e3f49STrond Myklebust goto out; 354202a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 35437aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3544683b57b4STrond Myklebust if (unlikely(status != 0)) 3545683b57b4STrond Myklebust goto out; 3546c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3547c0eae66eSBenny Halevy if (unlikely(!p)) 3548c0eae66eSBenny Halevy goto out_overflow; 3549cccddf4fSBenny Halevy n = be32_to_cpup(p); 3550683b57b4STrond Myklebust if (n <= 0) 3551683b57b4STrond Myklebust goto out_eio; 3552683b57b4STrond Myklebust res->nlocations = 0; 3553683b57b4STrond Myklebust while (res->nlocations < n) { 3554464ad6b1SChuck Lever u32 m; 35557aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3556683b57b4STrond Myklebust 3557c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3558c0eae66eSBenny Halevy if (unlikely(!p)) 3559c0eae66eSBenny Halevy goto out_overflow; 3560cccddf4fSBenny Halevy m = be32_to_cpup(p); 35617aaa0b3bSManoj Naik 35627aaa0b3bSManoj Naik loc->nservers = 0; 356302a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 35647aaa0b3bSManoj Naik while (loc->nservers < m) { 35657aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 35667aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3567683b57b4STrond Myklebust if (unlikely(status != 0)) 3568683b57b4STrond Myklebust goto out_eio; 35697aaa0b3bSManoj Naik dprintk("%s ", server->data); 35707aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 35717aaa0b3bSManoj Naik loc->nservers++; 35727aaa0b3bSManoj Naik else { 3573464ad6b1SChuck Lever unsigned int i; 3574464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3575464ad6b1SChuck Lever "returned for location %u\n", 35763110ff80SHarvey Harrison __func__, 3577464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3578464ad6b1SChuck Lever m, res->nlocations); 35797aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 35802e42c3e2STrond Myklebust unsigned int len; 35817aaa0b3bSManoj Naik char *data; 35827aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3583683b57b4STrond Myklebust if (unlikely(status != 0)) 3584683b57b4STrond Myklebust goto out_eio; 35857aaa0b3bSManoj Naik } 35867aaa0b3bSManoj Naik } 35877aaa0b3bSManoj Naik } 35887aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 35897aaa0b3bSManoj Naik if (unlikely(status != 0)) 35907aaa0b3bSManoj Naik goto out_eio; 35917aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3592683b57b4STrond Myklebust res->nlocations++; 3593683b57b4STrond Myklebust } 3594409924e4STrond Myklebust if (res->nlocations != 0) 359581934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3596683b57b4STrond Myklebust out: 35973110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3598683b57b4STrond Myklebust return status; 3599c0eae66eSBenny Halevy out_overflow: 3600c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3601683b57b4STrond Myklebust out_eio: 3602683b57b4STrond Myklebust status = -EIO; 3603683b57b4STrond Myklebust goto out; 3604683b57b4STrond Myklebust } 3605683b57b4STrond Myklebust 36061da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36071da177e4SLinus Torvalds { 36088687b63aSAl Viro __be32 *p; 36091da177e4SLinus Torvalds int status = 0; 36101da177e4SLinus Torvalds 36111da177e4SLinus Torvalds *res = 0; 36121da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36131da177e4SLinus Torvalds return -EIO; 36141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3615c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3616c0eae66eSBenny Halevy if (unlikely(!p)) 3617c0eae66eSBenny Halevy goto out_overflow; 3618cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36191da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36201da177e4SLinus Torvalds } 36213110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36221da177e4SLinus Torvalds return status; 3623c0eae66eSBenny Halevy out_overflow: 3624c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3625c0eae66eSBenny Halevy return -EIO; 36261da177e4SLinus Torvalds } 36271da177e4SLinus Torvalds 36281da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36291da177e4SLinus Torvalds { 36308687b63aSAl Viro __be32 *p; 36311da177e4SLinus Torvalds int status = 0; 36321da177e4SLinus Torvalds 36331da177e4SLinus Torvalds *maxlink = 1; 36341da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 36351da177e4SLinus Torvalds return -EIO; 36361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3637c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3638c0eae66eSBenny Halevy if (unlikely(!p)) 3639c0eae66eSBenny Halevy goto out_overflow; 3640cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 36411da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 36421da177e4SLinus Torvalds } 36433110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 36441da177e4SLinus Torvalds return status; 3645c0eae66eSBenny Halevy out_overflow: 3646c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3647c0eae66eSBenny Halevy return -EIO; 36481da177e4SLinus Torvalds } 36491da177e4SLinus Torvalds 36501da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 36511da177e4SLinus Torvalds { 36528687b63aSAl Viro __be32 *p; 36531da177e4SLinus Torvalds int status = 0; 36541da177e4SLinus Torvalds 36551da177e4SLinus Torvalds *maxname = 1024; 36561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 36571da177e4SLinus Torvalds return -EIO; 36581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3659c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3660c0eae66eSBenny Halevy if (unlikely(!p)) 3661c0eae66eSBenny Halevy goto out_overflow; 3662cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 36631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 36641da177e4SLinus Torvalds } 36653110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 36661da177e4SLinus Torvalds return status; 3667c0eae66eSBenny Halevy out_overflow: 3668c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3669c0eae66eSBenny Halevy return -EIO; 36701da177e4SLinus Torvalds } 36711da177e4SLinus Torvalds 36721da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36731da177e4SLinus Torvalds { 36748687b63aSAl Viro __be32 *p; 36751da177e4SLinus Torvalds int status = 0; 36761da177e4SLinus Torvalds 36771da177e4SLinus Torvalds *res = 1024; 36781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 36791da177e4SLinus Torvalds return -EIO; 36801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 36811da177e4SLinus Torvalds uint64_t maxread; 3682c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3683c0eae66eSBenny Halevy if (unlikely(!p)) 3684c0eae66eSBenny Halevy goto out_overflow; 3685cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 36861da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 36871da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 36881da177e4SLinus Torvalds *res = (uint32_t)maxread; 36891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 36901da177e4SLinus Torvalds } 36913110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 36921da177e4SLinus Torvalds return status; 3693c0eae66eSBenny Halevy out_overflow: 3694c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3695c0eae66eSBenny Halevy return -EIO; 36961da177e4SLinus Torvalds } 36971da177e4SLinus Torvalds 36981da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36991da177e4SLinus Torvalds { 37008687b63aSAl Viro __be32 *p; 37011da177e4SLinus Torvalds int status = 0; 37021da177e4SLinus Torvalds 37031da177e4SLinus Torvalds *res = 1024; 37041da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37051da177e4SLinus Torvalds return -EIO; 37061da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37071da177e4SLinus Torvalds uint64_t maxwrite; 3708c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3709c0eae66eSBenny Halevy if (unlikely(!p)) 3710c0eae66eSBenny Halevy goto out_overflow; 3711cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37121da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37131da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37141da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37161da177e4SLinus Torvalds } 37173110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37181da177e4SLinus Torvalds return status; 3719c0eae66eSBenny Halevy out_overflow: 3720c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3721c0eae66eSBenny Halevy return -EIO; 37221da177e4SLinus Torvalds } 37231da177e4SLinus Torvalds 3724bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37251da177e4SLinus Torvalds { 3726bca79478STrond Myklebust uint32_t tmp; 37278687b63aSAl Viro __be32 *p; 3728409924e4STrond Myklebust int ret = 0; 37291da177e4SLinus Torvalds 37301da177e4SLinus Torvalds *mode = 0; 37311da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 37321da177e4SLinus Torvalds return -EIO; 37331da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3734c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3735c0eae66eSBenny Halevy if (unlikely(!p)) 3736c0eae66eSBenny Halevy goto out_overflow; 3737cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3738bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 37391da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3740409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 37411da177e4SLinus Torvalds } 37423110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3743409924e4STrond Myklebust return ret; 3744c0eae66eSBenny Halevy out_overflow: 3745c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3746c0eae66eSBenny Halevy return -EIO; 37471da177e4SLinus Torvalds } 37481da177e4SLinus Torvalds 37491da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 37501da177e4SLinus Torvalds { 37518687b63aSAl Viro __be32 *p; 3752409924e4STrond Myklebust int ret = 0; 37531da177e4SLinus Torvalds 37541da177e4SLinus Torvalds *nlink = 1; 37551da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 37561da177e4SLinus Torvalds return -EIO; 37571da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3758c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3759c0eae66eSBenny Halevy if (unlikely(!p)) 3760c0eae66eSBenny Halevy goto out_overflow; 3761cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 37621da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3763409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 37641da177e4SLinus Torvalds } 37653110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3766409924e4STrond Myklebust return ret; 3767c0eae66eSBenny Halevy out_overflow: 3768c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3769c0eae66eSBenny Halevy return -EIO; 37701da177e4SLinus Torvalds } 37711da177e4SLinus Torvalds 377280e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 37736926afd1STrond Myklebust const struct nfs_server *server, uint32_t *uid, 37746926afd1STrond Myklebust struct nfs4_string *owner_name) 37751da177e4SLinus Torvalds { 37768687b63aSAl Viro uint32_t len; 37778687b63aSAl Viro __be32 *p; 3778409924e4STrond Myklebust int ret = 0; 37791da177e4SLinus Torvalds 37801da177e4SLinus Torvalds *uid = -2; 37811da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 37821da177e4SLinus Torvalds return -EIO; 37831da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3784c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3785c0eae66eSBenny Halevy if (unlikely(!p)) 3786c0eae66eSBenny Halevy goto out_overflow; 3787cccddf4fSBenny Halevy len = be32_to_cpup(p); 3788c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3789c0eae66eSBenny Halevy if (unlikely(!p)) 3790c0eae66eSBenny Halevy goto out_overflow; 37916926afd1STrond Myklebust if (owner_name != NULL) { 37926926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 37936926afd1STrond Myklebust if (owner_name->data != NULL) { 37946926afd1STrond Myklebust owner_name->len = len; 37956926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 37966926afd1STrond Myklebust } 379780e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3798e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3799409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3800409924e4STrond Myklebust else 38011da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38023110ff80SHarvey Harrison __func__); 38031da177e4SLinus Torvalds } else 3804fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38053110ff80SHarvey Harrison __func__, len); 38061da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38071da177e4SLinus Torvalds } 38083110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3809409924e4STrond Myklebust return ret; 3810c0eae66eSBenny Halevy out_overflow: 3811c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3812c0eae66eSBenny Halevy return -EIO; 38131da177e4SLinus Torvalds } 38141da177e4SLinus Torvalds 381580e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 38166926afd1STrond Myklebust const struct nfs_server *server, uint32_t *gid, 38176926afd1STrond Myklebust struct nfs4_string *group_name) 38181da177e4SLinus Torvalds { 38198687b63aSAl Viro uint32_t len; 38208687b63aSAl Viro __be32 *p; 3821409924e4STrond Myklebust int ret = 0; 38221da177e4SLinus Torvalds 38231da177e4SLinus Torvalds *gid = -2; 38241da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38251da177e4SLinus Torvalds return -EIO; 38261da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3827c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3828c0eae66eSBenny Halevy if (unlikely(!p)) 3829c0eae66eSBenny Halevy goto out_overflow; 3830cccddf4fSBenny Halevy len = be32_to_cpup(p); 3831c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3832c0eae66eSBenny Halevy if (unlikely(!p)) 3833c0eae66eSBenny Halevy goto out_overflow; 38346926afd1STrond Myklebust if (group_name != NULL) { 38356926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 38366926afd1STrond Myklebust if (group_name->data != NULL) { 38376926afd1STrond Myklebust group_name->len = len; 38386926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 38396926afd1STrond Myklebust } 384080e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3841e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3842409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3843409924e4STrond Myklebust else 38441da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 38453110ff80SHarvey Harrison __func__); 38461da177e4SLinus Torvalds } else 3847fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38483110ff80SHarvey Harrison __func__, len); 38491da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 38501da177e4SLinus Torvalds } 38513110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3852409924e4STrond Myklebust return ret; 3853c0eae66eSBenny Halevy out_overflow: 3854c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3855c0eae66eSBenny Halevy return -EIO; 38561da177e4SLinus Torvalds } 38571da177e4SLinus Torvalds 38581da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 38591da177e4SLinus Torvalds { 38608687b63aSAl Viro uint32_t major = 0, minor = 0; 38618687b63aSAl Viro __be32 *p; 3862409924e4STrond Myklebust int ret = 0; 38631da177e4SLinus Torvalds 38641da177e4SLinus Torvalds *rdev = MKDEV(0,0); 38651da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 38661da177e4SLinus Torvalds return -EIO; 38671da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 38681da177e4SLinus Torvalds dev_t tmp; 38691da177e4SLinus Torvalds 3870c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3871c0eae66eSBenny Halevy if (unlikely(!p)) 3872c0eae66eSBenny Halevy goto out_overflow; 38736f723f77SBenny Halevy major = be32_to_cpup(p++); 3874cccddf4fSBenny Halevy minor = be32_to_cpup(p); 38751da177e4SLinus Torvalds tmp = MKDEV(major, minor); 38761da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 38771da177e4SLinus Torvalds *rdev = tmp; 38781da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3879409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 38801da177e4SLinus Torvalds } 38813110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3882409924e4STrond Myklebust return ret; 3883c0eae66eSBenny Halevy out_overflow: 3884c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3885c0eae66eSBenny Halevy return -EIO; 38861da177e4SLinus Torvalds } 38871da177e4SLinus Torvalds 38881da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 38891da177e4SLinus Torvalds { 38908687b63aSAl Viro __be32 *p; 38911da177e4SLinus Torvalds int status = 0; 38921da177e4SLinus Torvalds 38931da177e4SLinus Torvalds *res = 0; 38941da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 38951da177e4SLinus Torvalds return -EIO; 38961da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3897c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3898c0eae66eSBenny Halevy if (unlikely(!p)) 3899c0eae66eSBenny Halevy goto out_overflow; 3900cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39011da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39021da177e4SLinus Torvalds } 39033110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39041da177e4SLinus Torvalds return status; 3905c0eae66eSBenny Halevy out_overflow: 3906c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3907c0eae66eSBenny Halevy return -EIO; 39081da177e4SLinus Torvalds } 39091da177e4SLinus Torvalds 39101da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39111da177e4SLinus Torvalds { 39128687b63aSAl Viro __be32 *p; 39131da177e4SLinus Torvalds int status = 0; 39141da177e4SLinus Torvalds 39151da177e4SLinus Torvalds *res = 0; 39161da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39171da177e4SLinus Torvalds return -EIO; 39181da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3919c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3920c0eae66eSBenny Halevy if (unlikely(!p)) 3921c0eae66eSBenny Halevy goto out_overflow; 3922cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39231da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39241da177e4SLinus Torvalds } 39253110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39261da177e4SLinus Torvalds return status; 3927c0eae66eSBenny Halevy out_overflow: 3928c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3929c0eae66eSBenny Halevy return -EIO; 39301da177e4SLinus Torvalds } 39311da177e4SLinus Torvalds 39321da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39331da177e4SLinus Torvalds { 39348687b63aSAl Viro __be32 *p; 39351da177e4SLinus Torvalds int status = 0; 39361da177e4SLinus Torvalds 39371da177e4SLinus Torvalds *res = 0; 39381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 39391da177e4SLinus Torvalds return -EIO; 39401da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3941c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3942c0eae66eSBenny Halevy if (unlikely(!p)) 3943c0eae66eSBenny Halevy goto out_overflow; 3944cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39451da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 39461da177e4SLinus Torvalds } 39473110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 39481da177e4SLinus Torvalds return status; 3949c0eae66eSBenny Halevy out_overflow: 3950c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3951c0eae66eSBenny Halevy return -EIO; 39521da177e4SLinus Torvalds } 39531da177e4SLinus Torvalds 39541da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 39551da177e4SLinus Torvalds { 39568687b63aSAl Viro __be32 *p; 3957409924e4STrond Myklebust int ret = 0; 39581da177e4SLinus Torvalds 39591da177e4SLinus Torvalds *used = 0; 39601da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 39611da177e4SLinus Torvalds return -EIO; 39621da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3963c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3964c0eae66eSBenny Halevy if (unlikely(!p)) 3965c0eae66eSBenny Halevy goto out_overflow; 3966cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 39671da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3968409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 39691da177e4SLinus Torvalds } 39703110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 39711da177e4SLinus Torvalds (unsigned long long)*used); 3972409924e4STrond Myklebust return ret; 3973c0eae66eSBenny Halevy out_overflow: 3974c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3975c0eae66eSBenny Halevy return -EIO; 39761da177e4SLinus Torvalds } 39771da177e4SLinus Torvalds 39781da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 39791da177e4SLinus Torvalds { 39808687b63aSAl Viro __be32 *p; 39811da177e4SLinus Torvalds uint64_t sec; 39821da177e4SLinus Torvalds uint32_t nsec; 39831da177e4SLinus Torvalds 3984c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3985c0eae66eSBenny Halevy if (unlikely(!p)) 3986c0eae66eSBenny Halevy goto out_overflow; 39873ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3988cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 39891da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 39901da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 39911da177e4SLinus Torvalds return 0; 3992c0eae66eSBenny Halevy out_overflow: 3993c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3994c0eae66eSBenny Halevy return -EIO; 39951da177e4SLinus Torvalds } 39961da177e4SLinus Torvalds 39971da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 39981da177e4SLinus Torvalds { 39991da177e4SLinus Torvalds int status = 0; 40001da177e4SLinus Torvalds 40011da177e4SLinus Torvalds time->tv_sec = 0; 40021da177e4SLinus Torvalds time->tv_nsec = 0; 40031da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40041da177e4SLinus Torvalds return -EIO; 40051da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40061da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4007409924e4STrond Myklebust if (status == 0) 4008409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40091da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40101da177e4SLinus Torvalds } 40113110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40121da177e4SLinus Torvalds return status; 40131da177e4SLinus Torvalds } 40141da177e4SLinus Torvalds 40151da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40161da177e4SLinus Torvalds { 40171da177e4SLinus Torvalds int status = 0; 40181da177e4SLinus Torvalds 40191da177e4SLinus Torvalds time->tv_sec = 0; 40201da177e4SLinus Torvalds time->tv_nsec = 0; 40211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40221da177e4SLinus Torvalds return -EIO; 40231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40241da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4025409924e4STrond Myklebust if (status == 0) 4026409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40271da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40281da177e4SLinus Torvalds } 40293110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40301da177e4SLinus Torvalds return status; 40311da177e4SLinus Torvalds } 40321da177e4SLinus Torvalds 403355b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 403455b6e774SRicardo Labiaga struct timespec *time) 403555b6e774SRicardo Labiaga { 403655b6e774SRicardo Labiaga int status = 0; 403755b6e774SRicardo Labiaga 403855b6e774SRicardo Labiaga time->tv_sec = 0; 403955b6e774SRicardo Labiaga time->tv_nsec = 0; 404055b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 404155b6e774SRicardo Labiaga return -EIO; 404255b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 404355b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 404455b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 404555b6e774SRicardo Labiaga } 404655b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 404755b6e774SRicardo Labiaga (long)time->tv_nsec); 404855b6e774SRicardo Labiaga return status; 404955b6e774SRicardo Labiaga } 405055b6e774SRicardo Labiaga 40511da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40521da177e4SLinus Torvalds { 40531da177e4SLinus Torvalds int status = 0; 40541da177e4SLinus Torvalds 40551da177e4SLinus Torvalds time->tv_sec = 0; 40561da177e4SLinus Torvalds time->tv_nsec = 0; 40571da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 40581da177e4SLinus Torvalds return -EIO; 40591da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 40601da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4061409924e4STrond Myklebust if (status == 0) 4062409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 40631da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 40641da177e4SLinus Torvalds } 40653110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 40661da177e4SLinus Torvalds return status; 40671da177e4SLinus Torvalds } 40681da177e4SLinus Torvalds 4069256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 40701da177e4SLinus Torvalds { 40711da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4072256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 40731da177e4SLinus Torvalds 40741da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4075fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4076fe82a183SChuck Lever "%u %c %u\n", 40773110ff80SHarvey Harrison __func__, 40781da177e4SLinus Torvalds attrwords << 2, 40791da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 40801da177e4SLinus Torvalds nwords << 2); 40811da177e4SLinus Torvalds return -EIO; 40821da177e4SLinus Torvalds } 40831da177e4SLinus Torvalds return 0; 40841da177e4SLinus Torvalds } 40851da177e4SLinus Torvalds 40861da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40871da177e4SLinus Torvalds { 40888687b63aSAl Viro __be32 *p; 40891da177e4SLinus Torvalds 4090c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4091c0eae66eSBenny Halevy if (unlikely(!p)) 4092c0eae66eSBenny Halevy goto out_overflow; 40936f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 40943ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4095cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 40961da177e4SLinus Torvalds return 0; 4097c0eae66eSBenny Halevy out_overflow: 4098c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4099c0eae66eSBenny Halevy return -EIO; 41001da177e4SLinus Torvalds } 41011da177e4SLinus Torvalds 41021da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 41031da177e4SLinus Torvalds { 41048687b63aSAl Viro __be32 *p; 41051da177e4SLinus Torvalds uint32_t supp, acc; 41061da177e4SLinus Torvalds int status; 41071da177e4SLinus Torvalds 41081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41091da177e4SLinus Torvalds if (status) 41101da177e4SLinus Torvalds return status; 4111c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4112c0eae66eSBenny Halevy if (unlikely(!p)) 4113c0eae66eSBenny Halevy goto out_overflow; 41146f723f77SBenny Halevy supp = be32_to_cpup(p++); 4115cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41161da177e4SLinus Torvalds access->supported = supp; 41171da177e4SLinus Torvalds access->access = acc; 41181da177e4SLinus Torvalds return 0; 4119c0eae66eSBenny Halevy out_overflow: 4120c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4121c0eae66eSBenny Halevy return -EIO; 41221da177e4SLinus Torvalds } 41231da177e4SLinus Torvalds 412407d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41251da177e4SLinus Torvalds { 41268687b63aSAl Viro __be32 *p; 412707d30434SBenny Halevy 412807d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 412907d30434SBenny Halevy if (likely(p)) { 413007d30434SBenny Halevy memcpy(buf, p, len); 413107d30434SBenny Halevy return 0; 413207d30434SBenny Halevy } 413307d30434SBenny Halevy print_overflow_msg(__func__, xdr); 413407d30434SBenny Halevy return -EIO; 413507d30434SBenny Halevy } 413607d30434SBenny Halevy 413707d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 413807d30434SBenny Halevy { 41392d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 41401da177e4SLinus Torvalds } 41411da177e4SLinus Torvalds 41421da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 41431da177e4SLinus Torvalds { 41441da177e4SLinus Torvalds int status; 41451da177e4SLinus Torvalds 41461da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4147c1d51931STrond Myklebust if (status != -EIO) 4148c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 414907d30434SBenny Halevy if (!status) 415007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41511da177e4SLinus Torvalds return status; 41521da177e4SLinus Torvalds } 41531da177e4SLinus Torvalds 4154db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4155db942bbdSBenny Halevy { 4156cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 41571da177e4SLinus Torvalds } 41581da177e4SLinus Torvalds 41592f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 41602f2c63bcSTrond Myklebust { 41612f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 41622f2c63bcSTrond Myklebust } 41632f2c63bcSTrond Myklebust 41640b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 41651da177e4SLinus Torvalds { 41661da177e4SLinus Torvalds int status; 41671da177e4SLinus Torvalds 41681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4169db942bbdSBenny Halevy if (!status) 41702f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 41711da177e4SLinus Torvalds return status; 41721da177e4SLinus Torvalds } 41731da177e4SLinus Torvalds 41741da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41751da177e4SLinus Torvalds { 41768687b63aSAl Viro __be32 *p; 41771da177e4SLinus Torvalds uint32_t bmlen; 41781da177e4SLinus Torvalds int status; 41791da177e4SLinus Torvalds 41801da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 41811da177e4SLinus Torvalds if (status) 41821da177e4SLinus Torvalds return status; 41831da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 41841da177e4SLinus Torvalds return status; 4185c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4186c0eae66eSBenny Halevy if (unlikely(!p)) 4187c0eae66eSBenny Halevy goto out_overflow; 4188cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4189c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4190c0eae66eSBenny Halevy if (likely(p)) 41911da177e4SLinus Torvalds return 0; 4192c0eae66eSBenny Halevy out_overflow: 4193c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4194c0eae66eSBenny Halevy return -EIO; 41951da177e4SLinus Torvalds } 41961da177e4SLinus Torvalds 41971da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 41981da177e4SLinus Torvalds { 4199256e48bbSTrond Myklebust unsigned int savep; 4200dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42011da177e4SLinus Torvalds int status; 42021da177e4SLinus Torvalds 42031da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42041da177e4SLinus Torvalds goto xdr_error; 42051da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42061da177e4SLinus Torvalds goto xdr_error; 42071da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42081da177e4SLinus Torvalds goto xdr_error; 42091da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42101da177e4SLinus Torvalds goto xdr_error; 4211264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4212264e6351SChuck Lever &res->fh_expire_type)) != 0) 4213264e6351SChuck Lever goto xdr_error; 42141da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42151da177e4SLinus Torvalds goto xdr_error; 42161da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42171da177e4SLinus Torvalds goto xdr_error; 42181da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42191da177e4SLinus Torvalds goto xdr_error; 42201da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42211da177e4SLinus Torvalds xdr_error: 42223110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42231da177e4SLinus Torvalds return status; 42241da177e4SLinus Torvalds } 42251da177e4SLinus Torvalds 42261da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42271da177e4SLinus Torvalds { 4228256e48bbSTrond Myklebust unsigned int savep; 4229dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42301da177e4SLinus Torvalds int status; 42311da177e4SLinus Torvalds 42321da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42331da177e4SLinus Torvalds goto xdr_error; 42341da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42351da177e4SLinus Torvalds goto xdr_error; 42361da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42371da177e4SLinus Torvalds goto xdr_error; 42381da177e4SLinus Torvalds 42391da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 42401da177e4SLinus Torvalds goto xdr_error; 42411da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 42421da177e4SLinus Torvalds goto xdr_error; 42431da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 42441da177e4SLinus Torvalds goto xdr_error; 42451da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 42461da177e4SLinus Torvalds goto xdr_error; 42471da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 42481da177e4SLinus Torvalds goto xdr_error; 42491da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 42501da177e4SLinus Torvalds goto xdr_error; 42511da177e4SLinus Torvalds 42521da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42531da177e4SLinus Torvalds xdr_error: 42543110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42551da177e4SLinus Torvalds return status; 42561da177e4SLinus Torvalds } 42571da177e4SLinus Torvalds 42581da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 42591da177e4SLinus Torvalds { 4260256e48bbSTrond Myklebust unsigned int savep; 4261dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42621da177e4SLinus Torvalds int status; 42631da177e4SLinus Torvalds 42641da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42651da177e4SLinus Torvalds goto xdr_error; 42661da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42671da177e4SLinus Torvalds goto xdr_error; 42681da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42691da177e4SLinus Torvalds goto xdr_error; 42701da177e4SLinus Torvalds 42711da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 42721da177e4SLinus Torvalds goto xdr_error; 42731da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 42741da177e4SLinus Torvalds goto xdr_error; 42751da177e4SLinus Torvalds 42761da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42771da177e4SLinus Torvalds xdr_error: 42783110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42791da177e4SLinus Torvalds return status; 42801da177e4SLinus Torvalds } 42811da177e4SLinus Torvalds 428288034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 428388034c3dSAndy Adamson uint32_t *bitmap, 428488034c3dSAndy Adamson uint64_t *res, 428588034c3dSAndy Adamson uint32_t hint_bit) 428688034c3dSAndy Adamson { 428788034c3dSAndy Adamson __be32 *p; 428888034c3dSAndy Adamson 428988034c3dSAndy Adamson *res = 0; 429088034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 429188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 429288034c3dSAndy Adamson if (unlikely(!p)) 429388034c3dSAndy Adamson goto out_overflow; 429488034c3dSAndy Adamson xdr_decode_hyper(p, res); 429588034c3dSAndy Adamson } 429688034c3dSAndy Adamson return 0; 429788034c3dSAndy Adamson out_overflow: 429888034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 429988034c3dSAndy Adamson return -EIO; 430088034c3dSAndy Adamson } 430188034c3dSAndy Adamson 430288034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 430388034c3dSAndy Adamson struct nfs4_threshold *res) 430488034c3dSAndy Adamson { 4305256e48bbSTrond Myklebust __be32 *p; 4306256e48bbSTrond Myklebust unsigned int savep; 430788034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 430888034c3dSAndy Adamson int status; 430988034c3dSAndy Adamson 431088034c3dSAndy Adamson /* layout type */ 431188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 431288034c3dSAndy Adamson if (unlikely(!p)) { 431388034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 431488034c3dSAndy Adamson return -EIO; 431588034c3dSAndy Adamson } 431688034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 431788034c3dSAndy Adamson 431888034c3dSAndy Adamson /* thi_hintset bitmap */ 431988034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 432088034c3dSAndy Adamson if (status < 0) 432188034c3dSAndy Adamson goto xdr_error; 432288034c3dSAndy Adamson 432388034c3dSAndy Adamson /* thi_hintlist length */ 432488034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 432588034c3dSAndy Adamson if (status < 0) 432688034c3dSAndy Adamson goto xdr_error; 432788034c3dSAndy Adamson /* thi_hintlist */ 432888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 432988034c3dSAndy Adamson if (status < 0) 433088034c3dSAndy Adamson goto xdr_error; 433188034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 433288034c3dSAndy Adamson if (status < 0) 433388034c3dSAndy Adamson goto xdr_error; 433488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 433588034c3dSAndy Adamson THRESHOLD_RD_IO); 433688034c3dSAndy Adamson if (status < 0) 433788034c3dSAndy Adamson goto xdr_error; 433888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 433988034c3dSAndy Adamson THRESHOLD_WR_IO); 434088034c3dSAndy Adamson if (status < 0) 434188034c3dSAndy Adamson goto xdr_error; 434288034c3dSAndy Adamson 434388034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 434488034c3dSAndy Adamson res->bm = bitmap[0]; 434588034c3dSAndy Adamson 434688034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 434788034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 434888034c3dSAndy Adamson res->wr_io_sz); 434988034c3dSAndy Adamson xdr_error: 435088034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 435188034c3dSAndy Adamson return status; 435288034c3dSAndy Adamson } 435388034c3dSAndy Adamson 435488034c3dSAndy Adamson /* 435588034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 435688034c3dSAndy Adamson */ 435788034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 435888034c3dSAndy Adamson uint32_t *bitmap, 435988034c3dSAndy Adamson struct nfs4_threshold *res) 436088034c3dSAndy Adamson { 436188034c3dSAndy Adamson __be32 *p; 436288034c3dSAndy Adamson int status = 0; 436388034c3dSAndy Adamson uint32_t num; 436488034c3dSAndy Adamson 436588034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 436688034c3dSAndy Adamson return -EIO; 4367029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 43681549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 43691549210fSTrond Myklebust if (unlikely(res == NULL)) 43701549210fSTrond Myklebust return -EREMOTEIO; 437188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 437288034c3dSAndy Adamson if (unlikely(!p)) 437388034c3dSAndy Adamson goto out_overflow; 437488034c3dSAndy Adamson num = be32_to_cpup(p); 437588034c3dSAndy Adamson if (num == 0) 437688034c3dSAndy Adamson return 0; 437788034c3dSAndy Adamson if (num > 1) 437888034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 437988034c3dSAndy Adamson "drivers per filesystem not supported\n", 438088034c3dSAndy Adamson __func__); 438188034c3dSAndy Adamson 438288034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4383029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 438488034c3dSAndy Adamson } 438588034c3dSAndy Adamson return status; 438688034c3dSAndy Adamson out_overflow: 438788034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 438888034c3dSAndy Adamson return -EIO; 438988034c3dSAndy Adamson } 439088034c3dSAndy Adamson 4391ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4392ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 43938b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 43946926afd1STrond Myklebust const struct nfs_server *server) 43951da177e4SLinus Torvalds { 4396bca79478STrond Myklebust int status; 4397bca79478STrond Myklebust umode_t fmode = 0; 4398ae42c70aSBryan Schumaker uint32_t type; 4399ee7b75fcSTrond Myklebust int32_t err; 44001da177e4SLinus Torvalds 4401f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4402f26c7a78STrond Myklebust if (status < 0) 44031da177e4SLinus Torvalds goto xdr_error; 4404409924e4STrond Myklebust fattr->mode = 0; 4405409924e4STrond Myklebust if (status != 0) { 4406409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4407409924e4STrond Myklebust fattr->valid |= status; 4408409924e4STrond Myklebust } 44091da177e4SLinus Torvalds 4410f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4411f26c7a78STrond Myklebust if (status < 0) 44121da177e4SLinus Torvalds goto xdr_error; 4413409924e4STrond Myklebust fattr->valid |= status; 4414f26c7a78STrond Myklebust 4415f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4416f26c7a78STrond Myklebust if (status < 0) 44171da177e4SLinus Torvalds goto xdr_error; 4418409924e4STrond Myklebust fattr->valid |= status; 4419f26c7a78STrond Myklebust 4420f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4421f26c7a78STrond Myklebust if (status < 0) 44221da177e4SLinus Torvalds goto xdr_error; 4423409924e4STrond Myklebust fattr->valid |= status; 4424f26c7a78STrond Myklebust 4425ee7b75fcSTrond Myklebust err = 0; 4426ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4427ae42c70aSBryan Schumaker if (status < 0) 4428ae42c70aSBryan Schumaker goto xdr_error; 4429ae42c70aSBryan Schumaker 4430ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4431ae42c70aSBryan Schumaker if (status < 0) 4432ae42c70aSBryan Schumaker goto xdr_error; 4433ae42c70aSBryan Schumaker 4434f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4435f26c7a78STrond Myklebust if (status < 0) 44361da177e4SLinus Torvalds goto xdr_error; 4437409924e4STrond Myklebust fattr->valid |= status; 4438f26c7a78STrond Myklebust 44398b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4440f26c7a78STrond Myklebust if (status < 0) 4441683b57b4STrond Myklebust goto xdr_error; 4442409924e4STrond Myklebust fattr->valid |= status; 4443f26c7a78STrond Myklebust 4444f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4445f26c7a78STrond Myklebust if (status < 0) 44461da177e4SLinus Torvalds goto xdr_error; 4447409924e4STrond Myklebust if (status != 0) { 44481da177e4SLinus Torvalds fattr->mode |= fmode; 4449409924e4STrond Myklebust fattr->valid |= status; 4450409924e4STrond Myklebust } 4451f26c7a78STrond Myklebust 4452f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4453f26c7a78STrond Myklebust if (status < 0) 44541da177e4SLinus Torvalds goto xdr_error; 4455409924e4STrond Myklebust fattr->valid |= status; 4456f26c7a78STrond Myklebust 44576926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4458f26c7a78STrond Myklebust if (status < 0) 44591da177e4SLinus Torvalds goto xdr_error; 4460409924e4STrond Myklebust fattr->valid |= status; 4461f26c7a78STrond Myklebust 44626926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4463f26c7a78STrond Myklebust if (status < 0) 44641da177e4SLinus Torvalds goto xdr_error; 4465409924e4STrond Myklebust fattr->valid |= status; 4466f26c7a78STrond Myklebust 4467f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4468f26c7a78STrond Myklebust if (status < 0) 44691da177e4SLinus Torvalds goto xdr_error; 4470409924e4STrond Myklebust fattr->valid |= status; 4471f26c7a78STrond Myklebust 4472f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4473f26c7a78STrond Myklebust if (status < 0) 44741da177e4SLinus Torvalds goto xdr_error; 4475409924e4STrond Myklebust fattr->valid |= status; 4476f26c7a78STrond Myklebust 4477f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4478f26c7a78STrond Myklebust if (status < 0) 44791da177e4SLinus Torvalds goto xdr_error; 4480409924e4STrond Myklebust fattr->valid |= status; 4481f26c7a78STrond Myklebust 4482f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4483f26c7a78STrond Myklebust if (status < 0) 44841da177e4SLinus Torvalds goto xdr_error; 4485409924e4STrond Myklebust fattr->valid |= status; 4486f26c7a78STrond Myklebust 4487f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4488f26c7a78STrond Myklebust if (status < 0) 44891da177e4SLinus Torvalds goto xdr_error; 4490409924e4STrond Myklebust fattr->valid |= status; 4491f26c7a78STrond Myklebust 449228331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4493f26c7a78STrond Myklebust if (status < 0) 449499baf625SManoj Naik goto xdr_error; 4495409924e4STrond Myklebust fattr->valid |= status; 4496f26c7a78STrond Myklebust 449788034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 449888034c3dSAndy Adamson if (status < 0) 449988034c3dSAndy Adamson goto xdr_error; 450088034c3dSAndy Adamson 4501ae42c70aSBryan Schumaker xdr_error: 4502ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4503ae42c70aSBryan Schumaker return status; 4504ae42c70aSBryan Schumaker } 4505ae42c70aSBryan Schumaker 4506ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45078b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 45088b7e3f49STrond Myklebust const struct nfs_server *server) 4509ae42c70aSBryan Schumaker { 4510256e48bbSTrond Myklebust unsigned int savep; 4511ae42c70aSBryan Schumaker uint32_t attrlen, 4512dae100c2SFred Isaman bitmap[3] = {0}; 4513ae42c70aSBryan Schumaker int status; 4514ae42c70aSBryan Schumaker 4515ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4516ae42c70aSBryan Schumaker if (status < 0) 4517ae42c70aSBryan Schumaker goto xdr_error; 4518ae42c70aSBryan Schumaker 4519ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4520ae42c70aSBryan Schumaker if (status < 0) 4521ae42c70aSBryan Schumaker goto xdr_error; 4522ae42c70aSBryan Schumaker 4523ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4524ae42c70aSBryan Schumaker if (status < 0) 4525ae42c70aSBryan Schumaker goto xdr_error; 4526ae42c70aSBryan Schumaker 45278b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4528ae42c70aSBryan Schumaker if (status < 0) 4529ae42c70aSBryan Schumaker goto xdr_error; 4530ae42c70aSBryan Schumaker 4531f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 45321da177e4SLinus Torvalds xdr_error: 45333110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 45341da177e4SLinus Torvalds return status; 45351da177e4SLinus Torvalds } 45361da177e4SLinus Torvalds 4537ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 45386926afd1STrond Myklebust const struct nfs_server *server) 4539ae42c70aSBryan Schumaker { 45408b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4541ae42c70aSBryan Schumaker } 45421da177e4SLinus Torvalds 4543504913fbSAndy Adamson /* 4544504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4545504913fbSAndy Adamson * one layout driver per file system. 4546504913fbSAndy Adamson */ 4547504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4548504913fbSAndy Adamson uint32_t *layouttype) 4549504913fbSAndy Adamson { 4550504913fbSAndy Adamson uint32_t *p; 4551504913fbSAndy Adamson int num; 4552504913fbSAndy Adamson 4553504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4554504913fbSAndy Adamson if (unlikely(!p)) 4555504913fbSAndy Adamson goto out_overflow; 4556504913fbSAndy Adamson num = be32_to_cpup(p); 4557504913fbSAndy Adamson 4558504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4559504913fbSAndy Adamson if (num == 0) { 4560504913fbSAndy Adamson *layouttype = 0; 4561504913fbSAndy Adamson return 0; 4562504913fbSAndy Adamson } 4563504913fbSAndy Adamson if (num > 1) 4564a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4565a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4566504913fbSAndy Adamson 4567504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4568504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4569504913fbSAndy Adamson if (unlikely(!p)) 4570504913fbSAndy Adamson goto out_overflow; 4571504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4572504913fbSAndy Adamson return 0; 4573504913fbSAndy Adamson out_overflow: 4574504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4575504913fbSAndy Adamson return -EIO; 4576504913fbSAndy Adamson } 4577504913fbSAndy Adamson 4578504913fbSAndy Adamson /* 4579504913fbSAndy Adamson * The type of file system exported. 4580504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4581504913fbSAndy Adamson */ 4582504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4583504913fbSAndy Adamson uint32_t *layouttype) 4584504913fbSAndy Adamson { 4585504913fbSAndy Adamson int status = 0; 4586504913fbSAndy Adamson 4587504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4588504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4589504913fbSAndy Adamson return -EIO; 4590504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4591504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4592504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4593504913fbSAndy Adamson } else 4594504913fbSAndy Adamson *layouttype = 0; 4595504913fbSAndy Adamson return status; 4596504913fbSAndy Adamson } 4597504913fbSAndy Adamson 4598dae100c2SFred Isaman /* 4599dae100c2SFred Isaman * The prefered block size for layout directed io 4600dae100c2SFred Isaman */ 4601dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4602dae100c2SFred Isaman uint32_t *res) 4603dae100c2SFred Isaman { 4604dae100c2SFred Isaman __be32 *p; 4605dae100c2SFred Isaman 4606dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4607dae100c2SFred Isaman *res = 0; 4608dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4609dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4610dae100c2SFred Isaman if (unlikely(!p)) { 4611dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4612dae100c2SFred Isaman return -EIO; 4613dae100c2SFred Isaman } 4614dae100c2SFred Isaman *res = be32_to_cpup(p); 4615dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4616dae100c2SFred Isaman } 4617dae100c2SFred Isaman return 0; 4618dae100c2SFred Isaman } 4619dae100c2SFred Isaman 46201da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 46211da177e4SLinus Torvalds { 4622256e48bbSTrond Myklebust unsigned int savep; 4623dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 46241da177e4SLinus Torvalds int status; 46251da177e4SLinus Torvalds 46261da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 46271da177e4SLinus Torvalds goto xdr_error; 46281da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 46291da177e4SLinus Torvalds goto xdr_error; 46301da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 46311da177e4SLinus Torvalds goto xdr_error; 46321da177e4SLinus Torvalds 46331da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 46341da177e4SLinus Torvalds 46351da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 46361da177e4SLinus Torvalds goto xdr_error; 46371da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 46381da177e4SLinus Torvalds goto xdr_error; 46391da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 46401da177e4SLinus Torvalds goto xdr_error; 46411da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 46421da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 46431da177e4SLinus Torvalds goto xdr_error; 46441da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 464555b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 464655b6e774SRicardo Labiaga if (status != 0) 464755b6e774SRicardo Labiaga goto xdr_error; 4648504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4649504913fbSAndy Adamson if (status != 0) 4650504913fbSAndy Adamson goto xdr_error; 4651dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4652dae100c2SFred Isaman if (status) 4653dae100c2SFred Isaman goto xdr_error; 46541da177e4SLinus Torvalds 46551da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46561da177e4SLinus Torvalds xdr_error: 46573110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46581da177e4SLinus Torvalds return status; 46591da177e4SLinus Torvalds } 46601da177e4SLinus Torvalds 46611da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46621da177e4SLinus Torvalds { 46638687b63aSAl Viro __be32 *p; 46641da177e4SLinus Torvalds uint32_t len; 46651da177e4SLinus Torvalds int status; 46661da177e4SLinus Torvalds 46679936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46689936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46699936781dSTrond Myklebust 46701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46711da177e4SLinus Torvalds if (status) 46721da177e4SLinus Torvalds return status; 46731da177e4SLinus Torvalds 4674c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4675c0eae66eSBenny Halevy if (unlikely(!p)) 4676c0eae66eSBenny Halevy goto out_overflow; 4677cccddf4fSBenny Halevy len = be32_to_cpup(p); 46781da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46791da177e4SLinus Torvalds return -EIO; 46801da177e4SLinus Torvalds fh->size = len; 4681c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4682c0eae66eSBenny Halevy if (unlikely(!p)) 4683c0eae66eSBenny Halevy goto out_overflow; 468499398d06SBenny Halevy memcpy(fh->data, p, len); 46851da177e4SLinus Torvalds return 0; 4686c0eae66eSBenny Halevy out_overflow: 4687c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4688c0eae66eSBenny Halevy return -EIO; 46891da177e4SLinus Torvalds } 46901da177e4SLinus Torvalds 46911da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 46921da177e4SLinus Torvalds { 46931da177e4SLinus Torvalds int status; 46941da177e4SLinus Torvalds 46951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 46961da177e4SLinus Torvalds if (status) 46971da177e4SLinus Torvalds return status; 46981da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 46991da177e4SLinus Torvalds } 47001da177e4SLinus Torvalds 47011da177e4SLinus Torvalds /* 47021da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 47031da177e4SLinus Torvalds */ 4704911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 47051da177e4SLinus Torvalds { 4706911d1aafSTrond Myklebust uint64_t offset, length, clientid; 47078687b63aSAl Viro __be32 *p; 4708911d1aafSTrond Myklebust uint32_t namelen, type; 47091da177e4SLinus Torvalds 4710babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4711c0eae66eSBenny Halevy if (unlikely(!p)) 4712c0eae66eSBenny Halevy goto out_overflow; 4713babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 47143ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4715babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4716babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4717911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4718911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4719911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4720911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4721911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4722911d1aafSTrond Myklebust if (type & 1) 4723911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4724911d1aafSTrond Myklebust fl->fl_pid = 0; 4725911d1aafSTrond Myklebust } 4726babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4727babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4728babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4729c0eae66eSBenny Halevy if (likely(p)) 47301da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4731c0eae66eSBenny Halevy out_overflow: 4732c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4733c0eae66eSBenny Halevy return -EIO; 47341da177e4SLinus Torvalds } 47351da177e4SLinus Torvalds 4736911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 47371da177e4SLinus Torvalds { 47381da177e4SLinus Torvalds int status; 47391da177e4SLinus Torvalds 47401da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4741c1d51931STrond Myklebust if (status == -EIO) 4742c1d51931STrond Myklebust goto out; 47431da177e4SLinus Torvalds if (status == 0) { 474407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 474507d30434SBenny Halevy if (unlikely(status)) 474607d30434SBenny Halevy goto out; 47471da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4748c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4749c1d51931STrond Myklebust if (res->open_seqid != NULL) 4750c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4751c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4752c1d51931STrond Myklebust out: 47531da177e4SLinus Torvalds return status; 47541da177e4SLinus Torvalds } 47551da177e4SLinus Torvalds 4756911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47571da177e4SLinus Torvalds { 47581da177e4SLinus Torvalds int status; 47591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47601da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4761911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47621da177e4SLinus Torvalds return status; 47631da177e4SLinus Torvalds } 47641da177e4SLinus Torvalds 4765911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47661da177e4SLinus Torvalds { 47671da177e4SLinus Torvalds int status; 47681da177e4SLinus Torvalds 47691da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4770c1d51931STrond Myklebust if (status != -EIO) 4771c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 477207d30434SBenny Halevy if (status == 0) 477307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47741da177e4SLinus Torvalds return status; 47751da177e4SLinus Torvalds } 47761da177e4SLinus Torvalds 4777d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4778d3c7b7ccSTrond Myklebust { 4779d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4780d3c7b7ccSTrond Myklebust } 4781d3c7b7ccSTrond Myklebust 47821da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47831da177e4SLinus Torvalds { 47841da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47851da177e4SLinus Torvalds } 47861da177e4SLinus Torvalds 47871da177e4SLinus Torvalds /* This is too sick! */ 47881da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47891da177e4SLinus Torvalds { 47908687b63aSAl Viro __be32 *p; 47911da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 47921da177e4SLinus Torvalds 4793c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4794c0eae66eSBenny Halevy if (unlikely(!p)) 4795c0eae66eSBenny Halevy goto out_overflow; 47966f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 47971da177e4SLinus Torvalds switch (limit_type) { 47981da177e4SLinus Torvalds case 1: 4799cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 48001da177e4SLinus Torvalds break; 48011da177e4SLinus Torvalds case 2: 48026f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4803cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 48041da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 48051da177e4SLinus Torvalds } 48061da177e4SLinus Torvalds return 0; 4807c0eae66eSBenny Halevy out_overflow: 4808c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4809c0eae66eSBenny Halevy return -EIO; 48101da177e4SLinus Torvalds } 48111da177e4SLinus Torvalds 48121da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 48131da177e4SLinus Torvalds { 48148687b63aSAl Viro __be32 *p; 48151da177e4SLinus Torvalds uint32_t delegation_type; 481607d30434SBenny Halevy int status; 48171da177e4SLinus Torvalds 4818c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4819c0eae66eSBenny Halevy if (unlikely(!p)) 4820c0eae66eSBenny Halevy goto out_overflow; 4821cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 48221da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 48231da177e4SLinus Torvalds res->delegation_type = 0; 48241da177e4SLinus Torvalds return 0; 48251da177e4SLinus Torvalds } 482607d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 482707d30434SBenny Halevy if (unlikely(status)) 482807d30434SBenny Halevy return status; 4829c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4830c0eae66eSBenny Halevy if (unlikely(!p)) 4831c0eae66eSBenny Halevy goto out_overflow; 4832cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 483305d564feSAndy Adamson 48341da177e4SLinus Torvalds switch (delegation_type) { 48351da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 48361da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 48371da177e4SLinus Torvalds break; 48381da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 48391da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 48401da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 48411da177e4SLinus Torvalds return -EIO; 48421da177e4SLinus Torvalds } 48437539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4844c0eae66eSBenny Halevy out_overflow: 4845c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4846c0eae66eSBenny Halevy return -EIO; 48471da177e4SLinus Torvalds } 48481da177e4SLinus Torvalds 48491da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 48501da177e4SLinus Torvalds { 48518687b63aSAl Viro __be32 *p; 4852aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 48531da177e4SLinus Torvalds int status; 48541da177e4SLinus Torvalds 48551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4856c1d51931STrond Myklebust if (status != -EIO) 4857c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 485807d30434SBenny Halevy if (!status) 485907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 486007d30434SBenny Halevy if (unlikely(status)) 48611da177e4SLinus Torvalds return status; 48621da177e4SLinus Torvalds 48631da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48641da177e4SLinus Torvalds 4865c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4866c0eae66eSBenny Halevy if (unlikely(!p)) 4867c0eae66eSBenny Halevy goto out_overflow; 48686f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4869cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48701da177e4SLinus Torvalds if (bmlen > 10) 48711da177e4SLinus Torvalds goto xdr_error; 48721da177e4SLinus Torvalds 4873c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4874c0eae66eSBenny Halevy if (unlikely(!p)) 4875c0eae66eSBenny Halevy goto out_overflow; 4876aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4877aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48786f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4879aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4880aa53ed54SJeff Layton res->attrset[i] = 0; 4881aa53ed54SJeff Layton 48821da177e4SLinus Torvalds return decode_delegation(xdr, res); 48831da177e4SLinus Torvalds xdr_error: 48843110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48851da177e4SLinus Torvalds return -EIO; 4886c0eae66eSBenny Halevy out_overflow: 4887c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4888c0eae66eSBenny Halevy return -EIO; 48891da177e4SLinus Torvalds } 48901da177e4SLinus Torvalds 48911da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 48921da177e4SLinus Torvalds { 48931da177e4SLinus Torvalds int status; 48941da177e4SLinus Torvalds 48951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4896c1d51931STrond Myklebust if (status != -EIO) 4897c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 489807d30434SBenny Halevy if (!status) 489907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49001da177e4SLinus Torvalds return status; 49011da177e4SLinus Torvalds } 49021da177e4SLinus Torvalds 49031da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 49041da177e4SLinus Torvalds { 49051da177e4SLinus Torvalds int status; 49061da177e4SLinus Torvalds 49071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4908c1d51931STrond Myklebust if (status != -EIO) 4909c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 491007d30434SBenny Halevy if (!status) 491107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49121da177e4SLinus Torvalds return status; 49131da177e4SLinus Torvalds } 49141da177e4SLinus Torvalds 49151da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 49161da177e4SLinus Torvalds { 49171da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 49181da177e4SLinus Torvalds } 49191da177e4SLinus Torvalds 49201da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 49211da177e4SLinus Torvalds { 49221da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 49231da177e4SLinus Torvalds } 49241da177e4SLinus Torvalds 49251da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 49261da177e4SLinus Torvalds { 49278687b63aSAl Viro __be32 *p; 492864bd577eSTrond Myklebust uint32_t count, eof, recvd; 49291da177e4SLinus Torvalds int status; 49301da177e4SLinus Torvalds 49311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 49321da177e4SLinus Torvalds if (status) 49331da177e4SLinus Torvalds return status; 4934c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4935c0eae66eSBenny Halevy if (unlikely(!p)) 4936c0eae66eSBenny Halevy goto out_overflow; 49376f723f77SBenny Halevy eof = be32_to_cpup(p++); 4938cccddf4fSBenny Halevy count = be32_to_cpup(p); 493964bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 49401da177e4SLinus Torvalds if (count > recvd) { 4941fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 49421da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 49431da177e4SLinus Torvalds count = recvd; 49441da177e4SLinus Torvalds eof = 0; 49451da177e4SLinus Torvalds } 49461da177e4SLinus Torvalds res->eof = eof; 49471da177e4SLinus Torvalds res->count = count; 49481da177e4SLinus Torvalds return 0; 4949c0eae66eSBenny Halevy out_overflow: 4950c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4951c0eae66eSBenny Halevy return -EIO; 49521da177e4SLinus Torvalds } 49531da177e4SLinus Torvalds 49541da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 49551da177e4SLinus Torvalds { 4956bcecff77SChuck Lever int status; 4957cd93710eSChuck Lever __be32 verf[2]; 49581da177e4SLinus Torvalds 49591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4960db942bbdSBenny Halevy if (!status) 4961db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4962db942bbdSBenny Halevy if (unlikely(status)) 49631da177e4SLinus Torvalds return status; 4964cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 496544109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 4966cd93710eSChuck Lever __func__, verf[0], verf[1]); 496764bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 49681da177e4SLinus Torvalds } 49691da177e4SLinus Torvalds 49701da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49711da177e4SLinus Torvalds { 49721da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 4973bcecff77SChuck Lever u32 len, recvd; 49748687b63aSAl Viro __be32 *p; 49751da177e4SLinus Torvalds int status; 49761da177e4SLinus Torvalds 49771da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49781da177e4SLinus Torvalds if (status) 49791da177e4SLinus Torvalds return status; 49801da177e4SLinus Torvalds 49811da177e4SLinus Torvalds /* Convert length of symlink */ 4982c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4983c0eae66eSBenny Halevy if (unlikely(!p)) 4984c0eae66eSBenny Halevy goto out_overflow; 4985cccddf4fSBenny Halevy len = be32_to_cpup(p); 49861da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4987fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49881da177e4SLinus Torvalds return -ENAMETOOLONG; 49891da177e4SLinus Torvalds } 499064bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 49911da177e4SLinus Torvalds if (recvd < len) { 4992fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 49931da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 49941da177e4SLinus Torvalds return -EIO; 49951da177e4SLinus Torvalds } 49961da177e4SLinus Torvalds /* 49971da177e4SLinus Torvalds * The XDR encode routine has set things up so that 49981da177e4SLinus Torvalds * the link text will be copied directly into the 49991da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 50001da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 50011da177e4SLinus Torvalds * null-termination). 50021da177e4SLinus Torvalds */ 5003b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 50041da177e4SLinus Torvalds return 0; 5005c0eae66eSBenny Halevy out_overflow: 5006c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5007c0eae66eSBenny Halevy return -EIO; 50081da177e4SLinus Torvalds } 50091da177e4SLinus Torvalds 50101da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 50111da177e4SLinus Torvalds { 50121da177e4SLinus Torvalds int status; 50131da177e4SLinus Torvalds 50141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 50151da177e4SLinus Torvalds if (status) 50161da177e4SLinus Torvalds goto out; 50171da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 50181da177e4SLinus Torvalds out: 50191da177e4SLinus Torvalds return status; 50201da177e4SLinus Torvalds } 50211da177e4SLinus Torvalds 50221da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 50231da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 50241da177e4SLinus Torvalds { 50251da177e4SLinus Torvalds int status; 50261da177e4SLinus Torvalds 50271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 50281da177e4SLinus Torvalds if (status) 50291da177e4SLinus Torvalds goto out; 50301da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 50311da177e4SLinus Torvalds goto out; 50321da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 50331da177e4SLinus Torvalds out: 50341da177e4SLinus Torvalds return status; 50351da177e4SLinus Torvalds } 50361da177e4SLinus Torvalds 50371da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50381da177e4SLinus Torvalds { 50391da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50401da177e4SLinus Torvalds } 50411da177e4SLinus Torvalds 504256ae19f3STrond Myklebust static int 504356ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 504456ae19f3STrond Myklebust { 504556ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 504656ae19f3STrond Myklebust } 504756ae19f3STrond Myklebust 5048029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5049bf118a34SAndy Adamson struct nfs_getaclres *res) 5050029d105eSJ. Bruce Fields { 5051256e48bbSTrond Myklebust unsigned int savep; 5052029d105eSJ. Bruce Fields uint32_t attrlen, 5053dae100c2SFred Isaman bitmap[3] = {0}; 5054029d105eSJ. Bruce Fields int status; 5055cff298c7STrond Myklebust unsigned int pg_offset; 5056029d105eSJ. Bruce Fields 5057bf118a34SAndy Adamson res->acl_len = 0; 5058029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5059029d105eSJ. Bruce Fields goto out; 50605a006899SSachin Prabhu 5061519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5062519d3959STrond Myklebust 5063cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5064cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 50655a006899SSachin Prabhu 5066029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5067029d105eSJ. Bruce Fields goto out; 5068029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5069029d105eSJ. Bruce Fields goto out; 5070029d105eSJ. Bruce Fields 5071029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5072029d105eSJ. Bruce Fields return -EIO; 5073029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5074029d105eSJ. Bruce Fields 5075bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5076bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5077bf118a34SAndy Adamson * variable length bitmaps.*/ 5078cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5079519d3959STrond Myklebust res->acl_len = attrlen; 50801f1ea6c2STrond Myklebust 50811f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 50821f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 50831f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 50841f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5085519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5086cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5087029d105eSJ. Bruce Fields } 50888c233cf9SJ. Bruce Fields } else 50898c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5090029d105eSJ. Bruce Fields 5091029d105eSJ. Bruce Fields out: 5092029d105eSJ. Bruce Fields return status; 5093029d105eSJ. Bruce Fields } 5094029d105eSJ. Bruce Fields 50951da177e4SLinus Torvalds static int 50961da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 50971da177e4SLinus Torvalds { 50981da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 50991da177e4SLinus Torvalds } 51001da177e4SLinus Torvalds 51019e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 51021da177e4SLinus Torvalds { 51038687b63aSAl Viro __be32 *p; 51041da177e4SLinus Torvalds uint32_t bmlen; 51051da177e4SLinus Torvalds int status; 51061da177e4SLinus Torvalds 51071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 51081da177e4SLinus Torvalds if (status) 51091da177e4SLinus Torvalds return status; 5110c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5111c0eae66eSBenny Halevy if (unlikely(!p)) 5112c0eae66eSBenny Halevy goto out_overflow; 5113cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5114c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5115c0eae66eSBenny Halevy if (likely(p)) 51161da177e4SLinus Torvalds return 0; 5117c0eae66eSBenny Halevy out_overflow: 5118c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5119c0eae66eSBenny Halevy return -EIO; 51201da177e4SLinus Torvalds } 51211da177e4SLinus Torvalds 5122bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 51231da177e4SLinus Torvalds { 51248687b63aSAl Viro __be32 *p; 51251da177e4SLinus Torvalds uint32_t opnum; 51261da177e4SLinus Torvalds int32_t nfserr; 51271da177e4SLinus Torvalds 5128c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5129c0eae66eSBenny Halevy if (unlikely(!p)) 5130c0eae66eSBenny Halevy goto out_overflow; 51316f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51321da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5133fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51341da177e4SLinus Torvalds " %d\n", opnum); 51351da177e4SLinus Torvalds return -EIO; 51361da177e4SLinus Torvalds } 5137cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51381da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5139c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5140c0eae66eSBenny Halevy if (unlikely(!p)) 5141c0eae66eSBenny Halevy goto out_overflow; 5142bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5143bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51441da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51451da177e4SLinus Torvalds uint32_t len; 51461da177e4SLinus Torvalds 51471da177e4SLinus Torvalds /* skip netid string */ 5148c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5149c0eae66eSBenny Halevy if (unlikely(!p)) 5150c0eae66eSBenny Halevy goto out_overflow; 5151cccddf4fSBenny Halevy len = be32_to_cpup(p); 5152c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5153c0eae66eSBenny Halevy if (unlikely(!p)) 5154c0eae66eSBenny Halevy goto out_overflow; 51551da177e4SLinus Torvalds 51561da177e4SLinus Torvalds /* skip uaddr string */ 5157c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5158c0eae66eSBenny Halevy if (unlikely(!p)) 5159c0eae66eSBenny Halevy goto out_overflow; 5160cccddf4fSBenny Halevy len = be32_to_cpup(p); 5161c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5162c0eae66eSBenny Halevy if (unlikely(!p)) 5163c0eae66eSBenny Halevy goto out_overflow; 51641da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51651da177e4SLinus Torvalds } else 5166856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51671da177e4SLinus Torvalds 51681da177e4SLinus Torvalds return 0; 5169c0eae66eSBenny Halevy out_overflow: 5170c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5171c0eae66eSBenny Halevy return -EIO; 51721da177e4SLinus Torvalds } 51731da177e4SLinus Torvalds 51741da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51751da177e4SLinus Torvalds { 51761da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51771da177e4SLinus Torvalds } 51781da177e4SLinus Torvalds 51791da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51801da177e4SLinus Torvalds { 51818687b63aSAl Viro __be32 *p; 51821da177e4SLinus Torvalds int status; 51831da177e4SLinus Torvalds 51841da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51851da177e4SLinus Torvalds if (status) 51861da177e4SLinus Torvalds return status; 51871da177e4SLinus Torvalds 51882f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5189c0eae66eSBenny Halevy if (unlikely(!p)) 5190c0eae66eSBenny Halevy goto out_overflow; 51916f723f77SBenny Halevy res->count = be32_to_cpup(p++); 51926f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 51932f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5194c0eae66eSBenny Halevy out_overflow: 5195c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5196c0eae66eSBenny Halevy return -EIO; 51971da177e4SLinus Torvalds } 51981da177e4SLinus Torvalds 51991da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 52001da177e4SLinus Torvalds { 52011da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 52021da177e4SLinus Torvalds } 52031da177e4SLinus Torvalds 52045a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 52055a5ea0d4SBryan Schumaker { 52065a5ea0d4SBryan Schumaker __be32 *p; 52075a5ea0d4SBryan Schumaker 52085a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52095a5ea0d4SBryan Schumaker if (unlikely(!p)) 52105a5ea0d4SBryan Schumaker goto out_overflow; 52115a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 52125a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 52135a5ea0d4SBryan Schumaker goto out_err; 52145a5ea0d4SBryan Schumaker 52155a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 52165a5ea0d4SBryan Schumaker if (unlikely(!p)) 52175a5ea0d4SBryan Schumaker goto out_overflow; 52185a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 52195a5ea0d4SBryan Schumaker 52205a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 52215a5ea0d4SBryan Schumaker if (unlikely(!p)) 52225a5ea0d4SBryan Schumaker goto out_overflow; 52235a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 52245a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 52255a5ea0d4SBryan Schumaker 52265a5ea0d4SBryan Schumaker return 0; 52275a5ea0d4SBryan Schumaker 52285a5ea0d4SBryan Schumaker out_overflow: 52295a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52305a5ea0d4SBryan Schumaker return -EIO; 52315a5ea0d4SBryan Schumaker out_err: 52325a5ea0d4SBryan Schumaker return -EINVAL; 52335a5ea0d4SBryan Schumaker } 52345a5ea0d4SBryan Schumaker 523531e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52365a5ea0d4SBryan Schumaker { 52375a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 52385a5ea0d4SBryan Schumaker int status; 52395a5ea0d4SBryan Schumaker __be32 *p; 5240c3dfc280SBryan Schumaker int i, num_flavors; 52415a5ea0d4SBryan Schumaker 52425a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52435a5ea0d4SBryan Schumaker if (unlikely(!p)) 52445a5ea0d4SBryan Schumaker goto out_overflow; 52455a5ea0d4SBryan Schumaker 5246c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5247c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5248c3dfc280SBryan Schumaker 5249c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52505a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5251c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52525a5ea0d4SBryan Schumaker break; 52535a5ea0d4SBryan Schumaker 52545a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52555a5ea0d4SBryan Schumaker if (unlikely(!p)) 52565a5ea0d4SBryan Schumaker goto out_overflow; 52575a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52585a5ea0d4SBryan Schumaker 52595a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5260613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5261613e901eSBryan Schumaker if (status) 5262613e901eSBryan Schumaker goto out; 52635a5ea0d4SBryan Schumaker } 5264c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52655a5ea0d4SBryan Schumaker } 52665a5ea0d4SBryan Schumaker 526731e4dda4SBryan Schumaker status = 0; 5268613e901eSBryan Schumaker out: 5269613e901eSBryan Schumaker return status; 52705a5ea0d4SBryan Schumaker out_overflow: 52715a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52725a5ea0d4SBryan Schumaker return -EIO; 52735a5ea0d4SBryan Schumaker } 52745a5ea0d4SBryan Schumaker 527531e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 527631e4dda4SBryan Schumaker { 527731e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 527831e4dda4SBryan Schumaker if (status) 527931e4dda4SBryan Schumaker return status; 528031e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 528131e4dda4SBryan Schumaker } 528231e4dda4SBryan Schumaker 528399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 528431e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 528531e4dda4SBryan Schumaker { 528631e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 528731e4dda4SBryan Schumaker if (status) 528831e4dda4SBryan Schumaker return status; 528931e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 529031e4dda4SBryan Schumaker } 529131e4dda4SBryan Schumaker 529299fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 529399fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 529499fe60d0SBenny Halevy { 529599fe60d0SBenny Halevy __be32 *p; 529699fe60d0SBenny Halevy uint32_t dummy; 52972460ba57SBenny Halevy char *dummy_str; 529899fe60d0SBenny Halevy int status; 52997d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 530099fe60d0SBenny Halevy 530199fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 530299fe60d0SBenny Halevy if (status) 530399fe60d0SBenny Halevy return status; 530499fe60d0SBenny Halevy 5305c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5306c0eae66eSBenny Halevy if (unlikely(!p)) 5307c0eae66eSBenny Halevy goto out_overflow; 530832b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5309c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5310c0eae66eSBenny Halevy if (unlikely(!p)) 5311c0eae66eSBenny Halevy goto out_overflow; 531232b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 531332b01310STrond Myklebust res->flags = be32_to_cpup(p++); 531499fe60d0SBenny Halevy 531599fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5316cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 531799fe60d0SBenny Halevy if (dummy != SP4_NONE) 531899fe60d0SBenny Halevy return -EIO; 531999fe60d0SBenny Halevy 5320acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5321c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5322c0eae66eSBenny Halevy if (unlikely(!p)) 5323c0eae66eSBenny Halevy goto out_overflow; 5324acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 532599fe60d0SBenny Halevy 5326acdeb69dSChuck Lever /* server_owner4.so_major_id */ 53272460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53282460ba57SBenny Halevy if (unlikely(status)) 53292460ba57SBenny Halevy return status; 533078fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 533178fe0f41SWeston Andros Adamson return -EIO; 5332acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5333acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 533478fe0f41SWeston Andros Adamson 5335acdeb69dSChuck Lever /* server_scope4 */ 5336acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5337acdeb69dSChuck Lever if (unlikely(status)) 5338acdeb69dSChuck Lever return status; 5339acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5340acdeb69dSChuck Lever return -EIO; 534178fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 534278fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 534378fe0f41SWeston Andros Adamson 53447d2ed9acSWeston Andros Adamson /* Implementation Id */ 53457d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 53467d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53477d2ed9acSWeston Andros Adamson goto out_overflow; 53487d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 53497d2ed9acSWeston Andros Adamson 53507d2ed9acSWeston Andros Adamson if (impl_id_count) { 53517d2ed9acSWeston Andros Adamson /* nii_domain */ 53522460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53532460ba57SBenny Halevy if (unlikely(status)) 53542460ba57SBenny Halevy return status; 53557d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53567d2ed9acSWeston Andros Adamson return -EIO; 53577d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 535899fe60d0SBenny Halevy 53597d2ed9acSWeston Andros Adamson /* nii_name */ 53607d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53617d2ed9acSWeston Andros Adamson if (unlikely(status)) 53627d2ed9acSWeston Andros Adamson return status; 53637d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 53647d2ed9acSWeston Andros Adamson return -EIO; 53657d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 53667d2ed9acSWeston Andros Adamson 53677d2ed9acSWeston Andros Adamson /* nii_date */ 53687d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 53697d2ed9acSWeston Andros Adamson if (unlikely(!p)) 53707d2ed9acSWeston Andros Adamson goto out_overflow; 53717d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 53727d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 53737d2ed9acSWeston Andros Adamson 53747d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 53757d2ed9acSWeston Andros Adamson } 537699fe60d0SBenny Halevy return 0; 5377c0eae66eSBenny Halevy out_overflow: 5378c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5379c0eae66eSBenny Halevy return -EIO; 538099fe60d0SBenny Halevy } 5381fc931582SAndy Adamson 5382fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5383fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5384fc931582SAndy Adamson { 5385fc931582SAndy Adamson __be32 *p; 5386c9c30dd5SBenny Halevy u32 nr_attrs, val; 5387fc931582SAndy Adamson 5388c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5389c0eae66eSBenny Halevy if (unlikely(!p)) 5390c0eae66eSBenny Halevy goto out_overflow; 5391c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5392c9c30dd5SBenny Halevy if (val) 5393c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 53946f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 53956f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 53966f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 53976f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 53986f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5399cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5400fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5401a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5402a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5403fc931582SAndy Adamson return -EINVAL; 5404fc931582SAndy Adamson } 5405c0eae66eSBenny Halevy if (nr_attrs == 1) { 5406c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5407c0eae66eSBenny Halevy if (unlikely(!p)) 5408c0eae66eSBenny Halevy goto out_overflow; 5409c0eae66eSBenny Halevy } 5410fc931582SAndy Adamson return 0; 5411c0eae66eSBenny Halevy out_overflow: 5412c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5413c0eae66eSBenny Halevy return -EIO; 5414fc931582SAndy Adamson } 5415fc931582SAndy Adamson 5416e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5417e78291e4SBenny Halevy { 5418e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5419fc931582SAndy Adamson } 5420fc931582SAndy Adamson 54217c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 54227c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 54237c44f1aeSWeston Andros Adamson { 54247c44f1aeSWeston Andros Adamson __be32 *p; 54257c44f1aeSWeston Andros Adamson int status; 54267c44f1aeSWeston Andros Adamson 54277c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 54287c44f1aeSWeston Andros Adamson if (!status) 54297c44f1aeSWeston Andros Adamson status = decode_sessionid(xdr, &res->session->sess_id); 54307c44f1aeSWeston Andros Adamson if (unlikely(status)) 54317c44f1aeSWeston Andros Adamson return status; 54327c44f1aeSWeston Andros Adamson 54337c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 54347c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 54357c44f1aeSWeston Andros Adamson if (unlikely(!p)) 54367c44f1aeSWeston Andros Adamson goto out_overflow; 54377c44f1aeSWeston Andros Adamson 54387c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 54397c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 54407c44f1aeSWeston Andros Adamson return -EIO; 54417c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 54427c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 54437c44f1aeSWeston Andros Adamson else 54447c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 54457c44f1aeSWeston Andros Adamson 54467c44f1aeSWeston Andros Adamson return 0; 54477c44f1aeSWeston Andros Adamson out_overflow: 54487c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 54497c44f1aeSWeston Andros Adamson return -EIO; 54507c44f1aeSWeston Andros Adamson } 54517c44f1aeSWeston Andros Adamson 5452fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5453fc931582SAndy Adamson struct nfs41_create_session_res *res) 5454fc931582SAndy Adamson { 5455fc931582SAndy Adamson __be32 *p; 5456fc931582SAndy Adamson int status; 5457fc931582SAndy Adamson struct nfs_client *clp = res->client; 5458fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5459fc931582SAndy Adamson 5460fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5461e78291e4SBenny Halevy if (!status) 5462e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5463e78291e4SBenny Halevy if (unlikely(status)) 5464fc931582SAndy Adamson return status; 5465fc931582SAndy Adamson 5466fc931582SAndy Adamson /* seqid, flags */ 5467c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5468c0eae66eSBenny Halevy if (unlikely(!p)) 5469c0eae66eSBenny Halevy goto out_overflow; 54706f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5471cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5472fc931582SAndy Adamson 5473fc931582SAndy Adamson /* Channel attributes */ 5474fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5475fc931582SAndy Adamson if (!status) 5476fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5477fc931582SAndy Adamson return status; 5478c0eae66eSBenny Halevy out_overflow: 5479c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5480c0eae66eSBenny Halevy return -EIO; 5481fc931582SAndy Adamson } 54820f3e66c6SAndy Adamson 54830f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 54840f3e66c6SAndy Adamson { 54850f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 54860f3e66c6SAndy Adamson } 548718019753SRicardo Labiaga 548866245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 548966245539STrond Myklebust { 549066245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 549166245539STrond Myklebust } 549266245539STrond Myklebust 549318019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 549418019753SRicardo Labiaga { 549518019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 549618019753SRicardo Labiaga } 549799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 549899fe60d0SBenny Halevy 54999b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 55009b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 55019b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 55029b7b9fccSAndy Adamson { 55039b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5504fc01cea9SAndy Adamson struct nfs4_sessionid id; 5505fc01cea9SAndy Adamson u32 dummy; 5506fc01cea9SAndy Adamson int status; 5507fc01cea9SAndy Adamson __be32 *p; 5508fc01cea9SAndy Adamson 55099b7b9fccSAndy Adamson if (!res->sr_session) 55109b7b9fccSAndy Adamson return 0; 55119b7b9fccSAndy Adamson 5512fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5513e78291e4SBenny Halevy if (!status) 5514e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5515e78291e4SBenny Halevy if (unlikely(status)) 5516fc01cea9SAndy Adamson goto out_err; 55179b7b9fccSAndy Adamson 5518fc01cea9SAndy Adamson /* 5519fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5520fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5521fc01cea9SAndy Adamson */ 5522fdcb4577STrond Myklebust status = -EREMOTEIO; 5523fc01cea9SAndy Adamson 5524fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 5525fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5526fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5527fc01cea9SAndy Adamson goto out_err; 5528fc01cea9SAndy Adamson } 5529e78291e4SBenny Halevy 5530c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5531c0eae66eSBenny Halevy if (unlikely(!p)) 5532c0eae66eSBenny Halevy goto out_overflow; 5533e78291e4SBenny Halevy 5534fc01cea9SAndy Adamson /* seqid */ 55356f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5536dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5537fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5538fc01cea9SAndy Adamson goto out_err; 5539fc01cea9SAndy Adamson } 5540fc01cea9SAndy Adamson /* slot id */ 55416f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5542dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 5543fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5544fc01cea9SAndy Adamson goto out_err; 5545fc01cea9SAndy Adamson } 5546fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 55476f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5548fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 55496f723f77SBenny Halevy dummy = be32_to_cpup(p++); 55500629e370SAlexandros Batsakis /* result flags */ 55510629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5552fc01cea9SAndy Adamson status = 0; 5553fc01cea9SAndy Adamson out_err: 5554fc01cea9SAndy Adamson res->sr_status = status; 5555fc01cea9SAndy Adamson return status; 5556c0eae66eSBenny Halevy out_overflow: 5557c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5558c0eae66eSBenny Halevy status = -EIO; 5559c0eae66eSBenny Halevy goto out_err; 5560fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 55619b7b9fccSAndy Adamson return 0; 5562fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 55639b7b9fccSAndy Adamson } 55649b7b9fccSAndy Adamson 5565b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 55667f11d8d3SAndy Adamson /* 55677f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 55687f11d8d3SAndy Adamson */ 55697f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 55707f11d8d3SAndy Adamson struct pnfs_devicelist *res) 55717f11d8d3SAndy Adamson { 55727f11d8d3SAndy Adamson __be32 *p; 55737f11d8d3SAndy Adamson int status, i; 557498d94524STrond Myklebust nfs4_verifier verftemp; 55757f11d8d3SAndy Adamson 55767f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 55777f11d8d3SAndy Adamson if (status) 55787f11d8d3SAndy Adamson return status; 55797f11d8d3SAndy Adamson 55807f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 55817f11d8d3SAndy Adamson if (unlikely(!p)) 55827f11d8d3SAndy Adamson goto out_overflow; 55837f11d8d3SAndy Adamson 55847f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 55857f11d8d3SAndy Adamson p += 2; 55867f11d8d3SAndy Adamson 55877f11d8d3SAndy Adamson /* Read verifier */ 558898d94524STrond Myklebust p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE); 55897f11d8d3SAndy Adamson 55907f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 55917f11d8d3SAndy Adamson 55927f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 55937f11d8d3SAndy Adamson 55947f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5595a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 55967f11d8d3SAndy Adamson __func__, res->num_devs); 55977f11d8d3SAndy Adamson return -EIO; 55987f11d8d3SAndy Adamson } 55997f11d8d3SAndy Adamson 56007f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 56017f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 56027f11d8d3SAndy Adamson if (unlikely(!p)) 56037f11d8d3SAndy Adamson goto out_overflow; 56047f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 56057f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 56067f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 56077f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 56087f11d8d3SAndy Adamson return 0; 56097f11d8d3SAndy Adamson out_overflow: 56107f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 56117f11d8d3SAndy Adamson return -EIO; 56127f11d8d3SAndy Adamson } 5613b1f69b75SAndy Adamson 5614b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5615b1f69b75SAndy Adamson struct pnfs_device *pdev) 5616b1f69b75SAndy Adamson { 5617b1f69b75SAndy Adamson __be32 *p; 5618b1f69b75SAndy Adamson uint32_t len, type; 5619b1f69b75SAndy Adamson int status; 5620b1f69b75SAndy Adamson 5621b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5622b1f69b75SAndy Adamson if (status) { 5623b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5624b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5625b1f69b75SAndy Adamson if (unlikely(!p)) 5626b1f69b75SAndy Adamson goto out_overflow; 5627b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5628b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5629b1f69b75SAndy Adamson __func__, pdev->mincount); 5630b1f69b75SAndy Adamson } 5631b1f69b75SAndy Adamson return status; 5632b1f69b75SAndy Adamson } 5633b1f69b75SAndy Adamson 5634b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5635b1f69b75SAndy Adamson if (unlikely(!p)) 5636b1f69b75SAndy Adamson goto out_overflow; 5637b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5638b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5639b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5640b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5641b1f69b75SAndy Adamson return -EINVAL; 5642b1f69b75SAndy Adamson } 5643b1f69b75SAndy Adamson /* 5644b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5645b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5646b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5647b1f69b75SAndy Adamson */ 5648b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 564913fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 565013fe4ba1STrond Myklebust goto out_overflow; 5651b1f69b75SAndy Adamson 5652b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5653b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5654b1f69b75SAndy Adamson if (unlikely(!p)) 5655b1f69b75SAndy Adamson goto out_overflow; 5656b1f69b75SAndy Adamson len = be32_to_cpup(p); 5657b1f69b75SAndy Adamson if (len) { 5658ead00597SChuck Lever uint32_t i; 5659b1f69b75SAndy Adamson 5660b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5661b1f69b75SAndy Adamson if (unlikely(!p)) 5662b1f69b75SAndy Adamson goto out_overflow; 5663b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5664b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5665b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5666b1f69b75SAndy Adamson __func__); 5667b1f69b75SAndy Adamson return -EIO; 5668b1f69b75SAndy Adamson } 5669b1f69b75SAndy Adamson } 5670b1f69b75SAndy Adamson } 5671b1f69b75SAndy Adamson return 0; 5672b1f69b75SAndy Adamson out_overflow: 5673b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5674b1f69b75SAndy Adamson return -EIO; 5675b1f69b75SAndy Adamson } 5676b1f69b75SAndy Adamson 5677b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5678b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5679b1f69b75SAndy Adamson { 5680b1f69b75SAndy Adamson __be32 *p; 5681b1f69b75SAndy Adamson int status; 5682b1f69b75SAndy Adamson u32 layout_count; 568364bd577eSTrond Myklebust u32 recvd; 5684b1f69b75SAndy Adamson 5685b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5686b1f69b75SAndy Adamson if (status) 5687b1f69b75SAndy Adamson return status; 5688ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5689b1f69b75SAndy Adamson if (unlikely(!p)) 5690b1f69b75SAndy Adamson goto out_overflow; 5691ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5692ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5693ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5694ea9d23f5STrond Myklebust if (unlikely(!p)) 5695ea9d23f5STrond Myklebust goto out_overflow; 5696b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5697b1f69b75SAndy Adamson if (!layout_count) { 5698b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5699b1f69b75SAndy Adamson __func__); 5700b1f69b75SAndy Adamson return -EINVAL; 5701b1f69b75SAndy Adamson } 5702b1f69b75SAndy Adamson 570335124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5704b1f69b75SAndy Adamson if (unlikely(!p)) 5705b1f69b75SAndy Adamson goto out_overflow; 5706b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5707b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5708b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5709b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 571035124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5711b1f69b75SAndy Adamson 5712b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5713b1f69b75SAndy Adamson __func__, 5714b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5715b1f69b75SAndy Adamson (unsigned long)res->range.length, 5716b1f69b75SAndy Adamson res->range.iomode, 5717b1f69b75SAndy Adamson res->type, 571835124a09SWeston Andros Adamson res->layoutp->len); 5719b1f69b75SAndy Adamson 572064bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 572135124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 572235124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 572335124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 572435124a09SWeston Andros Adamson res->layoutp->len, recvd); 572535124a09SWeston Andros Adamson return -EINVAL; 572635124a09SWeston Andros Adamson } 572735124a09SWeston Andros Adamson 5728b1f69b75SAndy Adamson if (layout_count > 1) { 5729b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5730b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5731b1f69b75SAndy Adamson * the client may see a response that is less than the 5732b1f69b75SAndy Adamson * minimum it requested. 5733b1f69b75SAndy Adamson */ 5734b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5735b1f69b75SAndy Adamson __func__, layout_count); 5736b1f69b75SAndy Adamson } 5737b1f69b75SAndy Adamson 5738b1f69b75SAndy Adamson return 0; 5739b1f69b75SAndy Adamson out_overflow: 5740b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5741b1f69b75SAndy Adamson return -EIO; 5742b1f69b75SAndy Adamson } 5743863a3c6cSAndy Adamson 5744cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5745cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5746cbe82603SBenny Halevy { 5747cbe82603SBenny Halevy __be32 *p; 5748cbe82603SBenny Halevy int status; 5749cbe82603SBenny Halevy 5750cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5751cbe82603SBenny Halevy if (status) 5752cbe82603SBenny Halevy return status; 5753cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5754cbe82603SBenny Halevy if (unlikely(!p)) 5755cbe82603SBenny Halevy goto out_overflow; 5756cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5757cbe82603SBenny Halevy if (res->lrs_present) 5758cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5759cbe82603SBenny Halevy return status; 5760cbe82603SBenny Halevy out_overflow: 5761cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5762cbe82603SBenny Halevy return -EIO; 5763cbe82603SBenny Halevy } 5764cbe82603SBenny Halevy 5765863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5766863a3c6cSAndy Adamson struct rpc_rqst *req, 5767863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5768863a3c6cSAndy Adamson { 5769863a3c6cSAndy Adamson __be32 *p; 5770863a3c6cSAndy Adamson __u32 sizechanged; 5771863a3c6cSAndy Adamson int status; 5772863a3c6cSAndy Adamson 5773863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5774db29c089SAndy Adamson res->status = status; 5775863a3c6cSAndy Adamson if (status) 5776863a3c6cSAndy Adamson return status; 5777863a3c6cSAndy Adamson 5778863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5779863a3c6cSAndy Adamson if (unlikely(!p)) 5780863a3c6cSAndy Adamson goto out_overflow; 5781863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5782863a3c6cSAndy Adamson 5783863a3c6cSAndy Adamson if (sizechanged) { 5784863a3c6cSAndy Adamson /* throw away new size */ 5785863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5786863a3c6cSAndy Adamson if (unlikely(!p)) 5787863a3c6cSAndy Adamson goto out_overflow; 5788863a3c6cSAndy Adamson } 5789863a3c6cSAndy Adamson return 0; 5790863a3c6cSAndy Adamson out_overflow: 5791863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5792863a3c6cSAndy Adamson return -EIO; 5793863a3c6cSAndy Adamson } 57947d974794SBryan Schumaker 57957d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 57967d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 57977d974794SBryan Schumaker { 57987d974794SBryan Schumaker __be32 *p; 57997d974794SBryan Schumaker int status; 58007d974794SBryan Schumaker int num_res; 58017d974794SBryan Schumaker 58027d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 58037d974794SBryan Schumaker if (status) 58047d974794SBryan Schumaker return status; 58057d974794SBryan Schumaker 58067d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58077d974794SBryan Schumaker if (unlikely(!p)) 58087d974794SBryan Schumaker goto out_overflow; 58097d974794SBryan Schumaker num_res = be32_to_cpup(p++); 58107d974794SBryan Schumaker if (num_res != 1) 58117d974794SBryan Schumaker goto out; 58127d974794SBryan Schumaker 58137d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 58147d974794SBryan Schumaker if (unlikely(!p)) 58157d974794SBryan Schumaker goto out_overflow; 58167d974794SBryan Schumaker res->status = be32_to_cpup(p++); 58171cab0652SBryan Schumaker 58181cab0652SBryan Schumaker return status; 58197d974794SBryan Schumaker out_overflow: 58207d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 58217d974794SBryan Schumaker out: 58227d974794SBryan Schumaker return -EIO; 58237d974794SBryan Schumaker } 58249aeda35fSBryan Schumaker 58259aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 58269aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 58279aeda35fSBryan Schumaker { 58289aeda35fSBryan Schumaker __be32 *p; 58299aeda35fSBryan Schumaker int status; 58309aeda35fSBryan Schumaker 58319aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 58329aeda35fSBryan Schumaker if (status) 58339aeda35fSBryan Schumaker return status; 58349aeda35fSBryan Schumaker 58359aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 58369aeda35fSBryan Schumaker if (unlikely(!p)) 58379aeda35fSBryan Schumaker goto out_overflow; 58389aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 58399aeda35fSBryan Schumaker return res->status; 58409aeda35fSBryan Schumaker out_overflow: 58419aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 58429aeda35fSBryan Schumaker return -EIO; 58439aeda35fSBryan Schumaker } 5844b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5845b1f69b75SAndy Adamson 58461da177e4SLinus Torvalds /* 584749c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 584849c2559eSBenny Halevy */ 584949c2559eSBenny Halevy 585049c2559eSBenny Halevy /* 58511da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 58521da177e4SLinus Torvalds */ 5853bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5854bf269551SChuck Lever struct xdr_stream *xdr, 5855bf269551SChuck Lever struct nfs_closeres *res) 58561da177e4SLinus Torvalds { 58571da177e4SLinus Torvalds struct compound_hdr hdr; 58581da177e4SLinus Torvalds int status; 58591da177e4SLinus Torvalds 5860bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58611da177e4SLinus Torvalds if (status) 58621da177e4SLinus Torvalds goto out; 5863bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58649b7b9fccSAndy Adamson if (status) 58659b7b9fccSAndy Adamson goto out; 5866bf269551SChuck Lever status = decode_putfh(xdr); 58671da177e4SLinus Torvalds if (status) 58681da177e4SLinus Torvalds goto out; 5869bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5870516a6af6STrond Myklebust if (status != 0) 5871516a6af6STrond Myklebust goto out; 58726926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58731da177e4SLinus Torvalds out: 58741da177e4SLinus Torvalds return status; 58751da177e4SLinus Torvalds } 58761da177e4SLinus Torvalds 58771da177e4SLinus Torvalds /* 58781da177e4SLinus Torvalds * Decode ACCESS response 58791da177e4SLinus Torvalds */ 5880bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5881bf269551SChuck Lever struct nfs4_accessres *res) 58821da177e4SLinus Torvalds { 58831da177e4SLinus Torvalds struct compound_hdr hdr; 58841da177e4SLinus Torvalds int status; 58851da177e4SLinus Torvalds 5886bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58879b7b9fccSAndy Adamson if (status) 58889b7b9fccSAndy Adamson goto out; 5889bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58909b7b9fccSAndy Adamson if (status) 58911da177e4SLinus Torvalds goto out; 5892bf269551SChuck Lever status = decode_putfh(xdr); 589376b32999STrond Myklebust if (status != 0) 589476b32999STrond Myklebust goto out; 5895bf269551SChuck Lever status = decode_access(xdr, res); 589676b32999STrond Myklebust if (status != 0) 589776b32999STrond Myklebust goto out; 58986926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 58991da177e4SLinus Torvalds out: 59001da177e4SLinus Torvalds return status; 59011da177e4SLinus Torvalds } 59021da177e4SLinus Torvalds 59031da177e4SLinus Torvalds /* 59041da177e4SLinus Torvalds * Decode LOOKUP response 59051da177e4SLinus Torvalds */ 5906bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5907bf269551SChuck Lever struct nfs4_lookup_res *res) 59081da177e4SLinus Torvalds { 59091da177e4SLinus Torvalds struct compound_hdr hdr; 59101da177e4SLinus Torvalds int status; 59111da177e4SLinus Torvalds 5912bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59139b7b9fccSAndy Adamson if (status) 59149b7b9fccSAndy Adamson goto out; 5915bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59169b7b9fccSAndy Adamson if (status) 59171da177e4SLinus Torvalds goto out; 5918bf269551SChuck Lever status = decode_putfh(xdr); 5919bf269551SChuck Lever if (status) 59201da177e4SLinus Torvalds goto out; 5921bf269551SChuck Lever status = decode_lookup(xdr); 5922bf269551SChuck Lever if (status) 59231da177e4SLinus Torvalds goto out; 5924bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5925bf269551SChuck Lever if (status) 59261da177e4SLinus Torvalds goto out; 59276926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59281da177e4SLinus Torvalds out: 59291da177e4SLinus Torvalds return status; 59301da177e4SLinus Torvalds } 59311da177e4SLinus Torvalds 59321da177e4SLinus Torvalds /* 59331da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 59341da177e4SLinus Torvalds */ 5935bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5936bf269551SChuck Lever struct xdr_stream *xdr, 5937bf269551SChuck Lever struct nfs4_lookup_res *res) 59381da177e4SLinus Torvalds { 59391da177e4SLinus Torvalds struct compound_hdr hdr; 59401da177e4SLinus Torvalds int status; 59411da177e4SLinus Torvalds 5942bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59439b7b9fccSAndy Adamson if (status) 59449b7b9fccSAndy Adamson goto out; 5945bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59469b7b9fccSAndy Adamson if (status) 59471da177e4SLinus Torvalds goto out; 5948bf269551SChuck Lever status = decode_putrootfh(xdr); 5949bf269551SChuck Lever if (status) 59501da177e4SLinus Torvalds goto out; 5951bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5952bf269551SChuck Lever if (status == 0) 59536926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59541da177e4SLinus Torvalds out: 59551da177e4SLinus Torvalds return status; 59561da177e4SLinus Torvalds } 59571da177e4SLinus Torvalds 59581da177e4SLinus Torvalds /* 59591da177e4SLinus Torvalds * Decode REMOVE response 59601da177e4SLinus Torvalds */ 5961bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5962bf269551SChuck Lever struct nfs_removeres *res) 59631da177e4SLinus Torvalds { 59641da177e4SLinus Torvalds struct compound_hdr hdr; 59651da177e4SLinus Torvalds int status; 59661da177e4SLinus Torvalds 5967bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59689b7b9fccSAndy Adamson if (status) 59699b7b9fccSAndy Adamson goto out; 5970bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59719b7b9fccSAndy Adamson if (status) 59721da177e4SLinus Torvalds goto out; 5973bf269551SChuck Lever status = decode_putfh(xdr); 5974bf269551SChuck Lever if (status) 597516e42959STrond Myklebust goto out; 5976bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 59771da177e4SLinus Torvalds out: 59781da177e4SLinus Torvalds return status; 59791da177e4SLinus Torvalds } 59801da177e4SLinus Torvalds 59811da177e4SLinus Torvalds /* 59821da177e4SLinus Torvalds * Decode RENAME response 59831da177e4SLinus Torvalds */ 5984bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5985bf269551SChuck Lever struct nfs_renameres *res) 59861da177e4SLinus Torvalds { 59871da177e4SLinus Torvalds struct compound_hdr hdr; 59881da177e4SLinus Torvalds int status; 59891da177e4SLinus Torvalds 5990bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59919b7b9fccSAndy Adamson if (status) 59929b7b9fccSAndy Adamson goto out; 5993bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59949b7b9fccSAndy Adamson if (status) 59951da177e4SLinus Torvalds goto out; 5996bf269551SChuck Lever status = decode_putfh(xdr); 5997bf269551SChuck Lever if (status) 59981da177e4SLinus Torvalds goto out; 5999bf269551SChuck Lever status = decode_savefh(xdr); 6000bf269551SChuck Lever if (status) 60011da177e4SLinus Torvalds goto out; 6002bf269551SChuck Lever status = decode_putfh(xdr); 6003bf269551SChuck Lever if (status) 60041da177e4SLinus Torvalds goto out; 6005bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 60061da177e4SLinus Torvalds out: 60071da177e4SLinus Torvalds return status; 60081da177e4SLinus Torvalds } 60091da177e4SLinus Torvalds 60101da177e4SLinus Torvalds /* 60111da177e4SLinus Torvalds * Decode LINK response 60121da177e4SLinus Torvalds */ 6013bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6014bf269551SChuck Lever struct nfs4_link_res *res) 60151da177e4SLinus Torvalds { 60161da177e4SLinus Torvalds struct compound_hdr hdr; 60171da177e4SLinus Torvalds int status; 60181da177e4SLinus Torvalds 6019bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60209b7b9fccSAndy Adamson if (status) 60219b7b9fccSAndy Adamson goto out; 6022bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60239b7b9fccSAndy Adamson if (status) 60241da177e4SLinus Torvalds goto out; 6025bf269551SChuck Lever status = decode_putfh(xdr); 6026bf269551SChuck Lever if (status) 60271da177e4SLinus Torvalds goto out; 6028bf269551SChuck Lever status = decode_savefh(xdr); 6029bf269551SChuck Lever if (status) 60301da177e4SLinus Torvalds goto out; 6031bf269551SChuck Lever status = decode_putfh(xdr); 6032bf269551SChuck Lever if (status) 60331da177e4SLinus Torvalds goto out; 6034bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6035bf269551SChuck Lever if (status) 603691ba2eeeSTrond Myklebust goto out; 603791ba2eeeSTrond Myklebust /* 603891ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 603991ba2eeeSTrond Myklebust * filehandle. 604091ba2eeeSTrond Myklebust */ 6041bf269551SChuck Lever status = decode_restorefh(xdr); 6042bf269551SChuck Lever if (status) 604391ba2eeeSTrond Myklebust goto out; 60446926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60451da177e4SLinus Torvalds out: 60461da177e4SLinus Torvalds return status; 60471da177e4SLinus Torvalds } 60481da177e4SLinus Torvalds 60491da177e4SLinus Torvalds /* 60501da177e4SLinus Torvalds * Decode CREATE response 60511da177e4SLinus Torvalds */ 6052bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6053bf269551SChuck Lever struct nfs4_create_res *res) 60541da177e4SLinus Torvalds { 60551da177e4SLinus Torvalds struct compound_hdr hdr; 60561da177e4SLinus Torvalds int status; 60571da177e4SLinus Torvalds 6058bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60599b7b9fccSAndy Adamson if (status) 60609b7b9fccSAndy Adamson goto out; 6061bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60629b7b9fccSAndy Adamson if (status) 60631da177e4SLinus Torvalds goto out; 6064bf269551SChuck Lever status = decode_putfh(xdr); 6065bf269551SChuck Lever if (status) 60661da177e4SLinus Torvalds goto out; 6067bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6068bf269551SChuck Lever if (status) 60691da177e4SLinus Torvalds goto out; 6070bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6071bf269551SChuck Lever if (status) 60721da177e4SLinus Torvalds goto out; 60737c317fcfSTrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60741da177e4SLinus Torvalds out: 60751da177e4SLinus Torvalds return status; 60761da177e4SLinus Torvalds } 60771da177e4SLinus Torvalds 60781da177e4SLinus Torvalds /* 60791da177e4SLinus Torvalds * Decode SYMLINK response 60801da177e4SLinus Torvalds */ 6081bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6082bf269551SChuck Lever struct nfs4_create_res *res) 60831da177e4SLinus Torvalds { 6084bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60851da177e4SLinus Torvalds } 60861da177e4SLinus Torvalds 60871da177e4SLinus Torvalds /* 60881da177e4SLinus Torvalds * Decode GETATTR response 60891da177e4SLinus Torvalds */ 6090bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6091bf269551SChuck Lever struct nfs4_getattr_res *res) 60921da177e4SLinus Torvalds { 60931da177e4SLinus Torvalds struct compound_hdr hdr; 60941da177e4SLinus Torvalds int status; 60951da177e4SLinus Torvalds 6096bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60971da177e4SLinus Torvalds if (status) 60981da177e4SLinus Torvalds goto out; 6099bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61009b7b9fccSAndy Adamson if (status) 61019b7b9fccSAndy Adamson goto out; 6102bf269551SChuck Lever status = decode_putfh(xdr); 61031da177e4SLinus Torvalds if (status) 61041da177e4SLinus Torvalds goto out; 61056926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 61061da177e4SLinus Torvalds out: 61071da177e4SLinus Torvalds return status; 61081da177e4SLinus Torvalds } 61091da177e4SLinus Torvalds 611023ec6965SJ. Bruce Fields /* 611123ec6965SJ. Bruce Fields * Encode an SETACL request 611223ec6965SJ. Bruce Fields */ 61139f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 61149f06c719SChuck Lever struct nfs_setaclargs *args) 611523ec6965SJ. Bruce Fields { 611623ec6965SJ. Bruce Fields struct compound_hdr hdr = { 611766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 611823ec6965SJ. Bruce Fields }; 611923ec6965SJ. Bruce Fields 61209f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 61219f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 61229f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 61239f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6124d017931cSAndy Adamson encode_nops(&hdr); 612523ec6965SJ. Bruce Fields } 612605d564feSAndy Adamson 612723ec6965SJ. Bruce Fields /* 612823ec6965SJ. Bruce Fields * Decode SETACL response 612923ec6965SJ. Bruce Fields */ 613023ec6965SJ. Bruce Fields static int 6131bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 613273c403a9SBenny Halevy struct nfs_setaclres *res) 613323ec6965SJ. Bruce Fields { 613423ec6965SJ. Bruce Fields struct compound_hdr hdr; 613523ec6965SJ. Bruce Fields int status; 613623ec6965SJ. Bruce Fields 6137bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 613823ec6965SJ. Bruce Fields if (status) 613923ec6965SJ. Bruce Fields goto out; 6140bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61419b7b9fccSAndy Adamson if (status) 61429b7b9fccSAndy Adamson goto out; 6143bf269551SChuck Lever status = decode_putfh(xdr); 614423ec6965SJ. Bruce Fields if (status) 614523ec6965SJ. Bruce Fields goto out; 6146bf269551SChuck Lever status = decode_setattr(xdr); 614723ec6965SJ. Bruce Fields out: 614823ec6965SJ. Bruce Fields return status; 614923ec6965SJ. Bruce Fields } 61501da177e4SLinus Torvalds 61511da177e4SLinus Torvalds /* 6152029d105eSJ. Bruce Fields * Decode GETACL response 6153029d105eSJ. Bruce Fields */ 6154029d105eSJ. Bruce Fields static int 6155bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6156663c79b3SBenny Halevy struct nfs_getaclres *res) 6157029d105eSJ. Bruce Fields { 6158029d105eSJ. Bruce Fields struct compound_hdr hdr; 6159029d105eSJ. Bruce Fields int status; 6160029d105eSJ. Bruce Fields 6161331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6162331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6163331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6164331818f1STrond Myklebust } 6165bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6166029d105eSJ. Bruce Fields if (status) 6167029d105eSJ. Bruce Fields goto out; 6168bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61699b7b9fccSAndy Adamson if (status) 61709b7b9fccSAndy Adamson goto out; 6171bf269551SChuck Lever status = decode_putfh(xdr); 6172029d105eSJ. Bruce Fields if (status) 6173029d105eSJ. Bruce Fields goto out; 6174bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6175029d105eSJ. Bruce Fields 6176029d105eSJ. Bruce Fields out: 6177029d105eSJ. Bruce Fields return status; 6178029d105eSJ. Bruce Fields } 6179029d105eSJ. Bruce Fields 6180029d105eSJ. Bruce Fields /* 61811da177e4SLinus Torvalds * Decode CLOSE response 61821da177e4SLinus Torvalds */ 6183bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6184bf269551SChuck Lever struct nfs_closeres *res) 61851da177e4SLinus Torvalds { 61861da177e4SLinus Torvalds struct compound_hdr hdr; 61871da177e4SLinus Torvalds int status; 61881da177e4SLinus Torvalds 6189bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61901da177e4SLinus Torvalds if (status) 61911da177e4SLinus Torvalds goto out; 6192bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61939b7b9fccSAndy Adamson if (status) 61949b7b9fccSAndy Adamson goto out; 6195bf269551SChuck Lever status = decode_putfh(xdr); 61961da177e4SLinus Torvalds if (status) 61971da177e4SLinus Torvalds goto out; 6198bf269551SChuck Lever status = decode_close(xdr, res); 6199516a6af6STrond Myklebust if (status != 0) 6200516a6af6STrond Myklebust goto out; 6201516a6af6STrond Myklebust /* 6202516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6203516a6af6STrond Myklebust * in which case the getattr call will fail with 6204516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6205516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6206516a6af6STrond Myklebust */ 62076926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62081da177e4SLinus Torvalds out: 62091da177e4SLinus Torvalds return status; 62101da177e4SLinus Torvalds } 62111da177e4SLinus Torvalds 62121da177e4SLinus Torvalds /* 62131da177e4SLinus Torvalds * Decode OPEN response 62141da177e4SLinus Torvalds */ 6215bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6216bf269551SChuck Lever struct nfs_openres *res) 62171da177e4SLinus Torvalds { 62181da177e4SLinus Torvalds struct compound_hdr hdr; 62191da177e4SLinus Torvalds int status; 62201da177e4SLinus Torvalds 6221bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62221da177e4SLinus Torvalds if (status) 62231da177e4SLinus Torvalds goto out; 6224bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62259b7b9fccSAndy Adamson if (status) 62269b7b9fccSAndy Adamson goto out; 6227bf269551SChuck Lever status = decode_putfh(xdr); 62281da177e4SLinus Torvalds if (status) 62291da177e4SLinus Torvalds goto out; 6230bf269551SChuck Lever status = decode_open(xdr, res); 62311da177e4SLinus Torvalds if (status) 62321da177e4SLinus Torvalds goto out; 623301913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 623401913b49SWeston Andros Adamson if (status) 62351da177e4SLinus Torvalds goto out; 623690ff0c54STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62371da177e4SLinus Torvalds out: 62381da177e4SLinus Torvalds return status; 62391da177e4SLinus Torvalds } 62401da177e4SLinus Torvalds 62411da177e4SLinus Torvalds /* 62421da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 62431da177e4SLinus Torvalds */ 6244bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6245bf269551SChuck Lever struct xdr_stream *xdr, 6246bf269551SChuck Lever struct nfs_open_confirmres *res) 62471da177e4SLinus Torvalds { 62481da177e4SLinus Torvalds struct compound_hdr hdr; 62491da177e4SLinus Torvalds int status; 62501da177e4SLinus Torvalds 6251bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62521da177e4SLinus Torvalds if (status) 62531da177e4SLinus Torvalds goto out; 6254bf269551SChuck Lever status = decode_putfh(xdr); 62551da177e4SLinus Torvalds if (status) 62561da177e4SLinus Torvalds goto out; 6257bf269551SChuck Lever status = decode_open_confirm(xdr, res); 62581da177e4SLinus Torvalds out: 62591da177e4SLinus Torvalds return status; 62601da177e4SLinus Torvalds } 62611da177e4SLinus Torvalds 62621da177e4SLinus Torvalds /* 62631da177e4SLinus Torvalds * Decode OPEN response 62641da177e4SLinus Torvalds */ 6265bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6266bf269551SChuck Lever struct xdr_stream *xdr, 6267bf269551SChuck Lever struct nfs_openres *res) 62681da177e4SLinus Torvalds { 62691da177e4SLinus Torvalds struct compound_hdr hdr; 62701da177e4SLinus Torvalds int status; 62711da177e4SLinus Torvalds 6272bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62731da177e4SLinus Torvalds if (status) 62741da177e4SLinus Torvalds goto out; 6275bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62769b7b9fccSAndy Adamson if (status) 62779b7b9fccSAndy Adamson goto out; 6278bf269551SChuck Lever status = decode_putfh(xdr); 62791da177e4SLinus Torvalds if (status) 62801da177e4SLinus Torvalds goto out; 6281bf269551SChuck Lever status = decode_open(xdr, res); 6282864472e9STrond Myklebust if (status) 6283864472e9STrond Myklebust goto out; 62846926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62851da177e4SLinus Torvalds out: 62861da177e4SLinus Torvalds return status; 62871da177e4SLinus Torvalds } 62881da177e4SLinus Torvalds 62891da177e4SLinus Torvalds /* 62901da177e4SLinus Torvalds * Decode SETATTR response 62911da177e4SLinus Torvalds */ 6292bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6293bf269551SChuck Lever struct xdr_stream *xdr, 6294bf269551SChuck Lever struct nfs_setattrres *res) 62951da177e4SLinus Torvalds { 62961da177e4SLinus Torvalds struct compound_hdr hdr; 62971da177e4SLinus Torvalds int status; 62981da177e4SLinus Torvalds 6299bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63001da177e4SLinus Torvalds if (status) 63011da177e4SLinus Torvalds goto out; 6302bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63039b7b9fccSAndy Adamson if (status) 63049b7b9fccSAndy Adamson goto out; 6305bf269551SChuck Lever status = decode_putfh(xdr); 63061da177e4SLinus Torvalds if (status) 63071da177e4SLinus Torvalds goto out; 6308bf269551SChuck Lever status = decode_setattr(xdr); 63091da177e4SLinus Torvalds if (status) 63101da177e4SLinus Torvalds goto out; 63116926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63121da177e4SLinus Torvalds out: 63131da177e4SLinus Torvalds return status; 63141da177e4SLinus Torvalds } 63151da177e4SLinus Torvalds 63161da177e4SLinus Torvalds /* 63171da177e4SLinus Torvalds * Decode LOCK response 63181da177e4SLinus Torvalds */ 6319bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6320bf269551SChuck Lever struct nfs_lock_res *res) 63211da177e4SLinus Torvalds { 63221da177e4SLinus Torvalds struct compound_hdr hdr; 63231da177e4SLinus Torvalds int status; 63241da177e4SLinus Torvalds 6325bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63261da177e4SLinus Torvalds if (status) 63271da177e4SLinus Torvalds goto out; 6328bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63299b7b9fccSAndy Adamson if (status) 63309b7b9fccSAndy Adamson goto out; 6331bf269551SChuck Lever status = decode_putfh(xdr); 63321da177e4SLinus Torvalds if (status) 63331da177e4SLinus Torvalds goto out; 6334bf269551SChuck Lever status = decode_lock(xdr, res); 63351da177e4SLinus Torvalds out: 63361da177e4SLinus Torvalds return status; 63371da177e4SLinus Torvalds } 63381da177e4SLinus Torvalds 63391da177e4SLinus Torvalds /* 63401da177e4SLinus Torvalds * Decode LOCKT response 63411da177e4SLinus Torvalds */ 6342bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6343bf269551SChuck Lever struct nfs_lockt_res *res) 63441da177e4SLinus Torvalds { 63451da177e4SLinus Torvalds struct compound_hdr hdr; 63461da177e4SLinus Torvalds int status; 63471da177e4SLinus Torvalds 6348bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63491da177e4SLinus Torvalds if (status) 63501da177e4SLinus Torvalds goto out; 6351bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63529b7b9fccSAndy Adamson if (status) 63539b7b9fccSAndy Adamson goto out; 6354bf269551SChuck Lever status = decode_putfh(xdr); 63551da177e4SLinus Torvalds if (status) 63561da177e4SLinus Torvalds goto out; 6357bf269551SChuck Lever status = decode_lockt(xdr, res); 63581da177e4SLinus Torvalds out: 63591da177e4SLinus Torvalds return status; 63601da177e4SLinus Torvalds } 63611da177e4SLinus Torvalds 63621da177e4SLinus Torvalds /* 63631da177e4SLinus Torvalds * Decode LOCKU response 63641da177e4SLinus Torvalds */ 6365bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6366bf269551SChuck Lever struct nfs_locku_res *res) 63671da177e4SLinus Torvalds { 63681da177e4SLinus Torvalds struct compound_hdr hdr; 63691da177e4SLinus Torvalds int status; 63701da177e4SLinus Torvalds 6371bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63721da177e4SLinus Torvalds if (status) 63731da177e4SLinus Torvalds goto out; 6374bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63759b7b9fccSAndy Adamson if (status) 63769b7b9fccSAndy Adamson goto out; 6377bf269551SChuck Lever status = decode_putfh(xdr); 63781da177e4SLinus Torvalds if (status) 63791da177e4SLinus Torvalds goto out; 6380bf269551SChuck Lever status = decode_locku(xdr, res); 63811da177e4SLinus Torvalds out: 63821da177e4SLinus Torvalds return status; 63831da177e4SLinus Torvalds } 63841da177e4SLinus Torvalds 6385bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6386bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6387d3c7b7ccSTrond Myklebust { 6388d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6389d3c7b7ccSTrond Myklebust int status; 6390d3c7b7ccSTrond Myklebust 6391bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6392d3c7b7ccSTrond Myklebust if (!status) 6393bf269551SChuck Lever status = decode_release_lockowner(xdr); 6394d3c7b7ccSTrond Myklebust return status; 6395d3c7b7ccSTrond Myklebust } 6396d3c7b7ccSTrond Myklebust 63971da177e4SLinus Torvalds /* 63981da177e4SLinus Torvalds * Decode READLINK response 63991da177e4SLinus Torvalds */ 6400bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6401bf269551SChuck Lever struct xdr_stream *xdr, 6402f50c7000SBenny Halevy struct nfs4_readlink_res *res) 64031da177e4SLinus Torvalds { 64041da177e4SLinus Torvalds struct compound_hdr hdr; 64051da177e4SLinus Torvalds int status; 64061da177e4SLinus Torvalds 6407bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64081da177e4SLinus Torvalds if (status) 64091da177e4SLinus Torvalds goto out; 6410bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64119b7b9fccSAndy Adamson if (status) 64129b7b9fccSAndy Adamson goto out; 6413bf269551SChuck Lever status = decode_putfh(xdr); 64141da177e4SLinus Torvalds if (status) 64151da177e4SLinus Torvalds goto out; 6416bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 64171da177e4SLinus Torvalds out: 64181da177e4SLinus Torvalds return status; 64191da177e4SLinus Torvalds } 64201da177e4SLinus Torvalds 64211da177e4SLinus Torvalds /* 64221da177e4SLinus Torvalds * Decode READDIR response 64231da177e4SLinus Torvalds */ 6424bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6425bf269551SChuck Lever struct nfs4_readdir_res *res) 64261da177e4SLinus Torvalds { 64271da177e4SLinus Torvalds struct compound_hdr hdr; 64281da177e4SLinus Torvalds int status; 64291da177e4SLinus Torvalds 6430bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64311da177e4SLinus Torvalds if (status) 64321da177e4SLinus Torvalds goto out; 6433bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64349b7b9fccSAndy Adamson if (status) 64359b7b9fccSAndy Adamson goto out; 6436bf269551SChuck Lever status = decode_putfh(xdr); 64371da177e4SLinus Torvalds if (status) 64381da177e4SLinus Torvalds goto out; 6439bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 64401da177e4SLinus Torvalds out: 64411da177e4SLinus Torvalds return status; 64421da177e4SLinus Torvalds } 64431da177e4SLinus Torvalds 64441da177e4SLinus Torvalds /* 64451da177e4SLinus Torvalds * Decode Read response 64461da177e4SLinus Torvalds */ 6447bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6448bf269551SChuck Lever struct nfs_readres *res) 64491da177e4SLinus Torvalds { 64501da177e4SLinus Torvalds struct compound_hdr hdr; 64511da177e4SLinus Torvalds int status; 64521da177e4SLinus Torvalds 6453bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64541da177e4SLinus Torvalds if (status) 64551da177e4SLinus Torvalds goto out; 6456bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64579b7b9fccSAndy Adamson if (status) 64589b7b9fccSAndy Adamson goto out; 6459bf269551SChuck Lever status = decode_putfh(xdr); 64601da177e4SLinus Torvalds if (status) 64611da177e4SLinus Torvalds goto out; 6462bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 64631da177e4SLinus Torvalds if (!status) 64641da177e4SLinus Torvalds status = res->count; 64651da177e4SLinus Torvalds out: 64661da177e4SLinus Torvalds return status; 64671da177e4SLinus Torvalds } 64681da177e4SLinus Torvalds 64691da177e4SLinus Torvalds /* 64701da177e4SLinus Torvalds * Decode WRITE response 64711da177e4SLinus Torvalds */ 6472bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6473bf269551SChuck Lever struct nfs_writeres *res) 64741da177e4SLinus Torvalds { 64751da177e4SLinus Torvalds struct compound_hdr hdr; 64761da177e4SLinus Torvalds int status; 64771da177e4SLinus Torvalds 6478bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64791da177e4SLinus Torvalds if (status) 64801da177e4SLinus Torvalds goto out; 6481bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64829b7b9fccSAndy Adamson if (status) 64839b7b9fccSAndy Adamson goto out; 6484bf269551SChuck Lever status = decode_putfh(xdr); 64851da177e4SLinus Torvalds if (status) 64861da177e4SLinus Torvalds goto out; 6487bf269551SChuck Lever status = decode_write(xdr, res); 64884f9838c7STrond Myklebust if (status) 64894f9838c7STrond Myklebust goto out; 64907ffd1064SFred Isaman if (res->fattr) 64916926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64921da177e4SLinus Torvalds if (!status) 64931da177e4SLinus Torvalds status = res->count; 64941da177e4SLinus Torvalds out: 64951da177e4SLinus Torvalds return status; 64961da177e4SLinus Torvalds } 64971da177e4SLinus Torvalds 64981da177e4SLinus Torvalds /* 64991da177e4SLinus Torvalds * Decode COMMIT response 65001da177e4SLinus Torvalds */ 6501bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 65020b7c0153SFred Isaman struct nfs_commitres *res) 65031da177e4SLinus Torvalds { 65041da177e4SLinus Torvalds struct compound_hdr hdr; 65051da177e4SLinus Torvalds int status; 65061da177e4SLinus Torvalds 6507bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65081da177e4SLinus Torvalds if (status) 65091da177e4SLinus Torvalds goto out; 6510bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65119b7b9fccSAndy Adamson if (status) 65129b7b9fccSAndy Adamson goto out; 6513bf269551SChuck Lever status = decode_putfh(xdr); 65141da177e4SLinus Torvalds if (status) 65151da177e4SLinus Torvalds goto out; 6516bf269551SChuck Lever status = decode_commit(xdr, res); 65171da177e4SLinus Torvalds out: 65181da177e4SLinus Torvalds return status; 65191da177e4SLinus Torvalds } 65201da177e4SLinus Torvalds 65211da177e4SLinus Torvalds /* 65228b173218SRicardo Labiaga * Decode FSINFO response 65231da177e4SLinus Torvalds */ 6524bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 65253dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 65261da177e4SLinus Torvalds { 65271da177e4SLinus Torvalds struct compound_hdr hdr; 65281da177e4SLinus Torvalds int status; 65291da177e4SLinus Torvalds 6530bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65311da177e4SLinus Torvalds if (!status) 6532bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65339b7b9fccSAndy Adamson if (!status) 6534bf269551SChuck Lever status = decode_putfh(xdr); 65351da177e4SLinus Torvalds if (!status) 6536bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 65371da177e4SLinus Torvalds return status; 65381da177e4SLinus Torvalds } 65391da177e4SLinus Torvalds 65401da177e4SLinus Torvalds /* 65418b173218SRicardo Labiaga * Decode PATHCONF response 65421da177e4SLinus Torvalds */ 6543bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6544d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 65451da177e4SLinus Torvalds { 65461da177e4SLinus Torvalds struct compound_hdr hdr; 65471da177e4SLinus Torvalds int status; 65481da177e4SLinus Torvalds 6549bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65501da177e4SLinus Torvalds if (!status) 6551bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65529b7b9fccSAndy Adamson if (!status) 6553bf269551SChuck Lever status = decode_putfh(xdr); 65541da177e4SLinus Torvalds if (!status) 6555bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 65561da177e4SLinus Torvalds return status; 65571da177e4SLinus Torvalds } 65581da177e4SLinus Torvalds 65591da177e4SLinus Torvalds /* 65608b173218SRicardo Labiaga * Decode STATFS response 65611da177e4SLinus Torvalds */ 6562bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 656324ad148aSBenny Halevy struct nfs4_statfs_res *res) 65641da177e4SLinus Torvalds { 65651da177e4SLinus Torvalds struct compound_hdr hdr; 65661da177e4SLinus Torvalds int status; 65671da177e4SLinus Torvalds 6568bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65691da177e4SLinus Torvalds if (!status) 6570bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65719b7b9fccSAndy Adamson if (!status) 6572bf269551SChuck Lever status = decode_putfh(xdr); 65731da177e4SLinus Torvalds if (!status) 6574bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 65751da177e4SLinus Torvalds return status; 65761da177e4SLinus Torvalds } 65771da177e4SLinus Torvalds 65781da177e4SLinus Torvalds /* 65798b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65801da177e4SLinus Torvalds */ 6581bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6582bf269551SChuck Lever struct xdr_stream *xdr, 6583bf269551SChuck Lever struct nfs4_server_caps_res *res) 65841da177e4SLinus Torvalds { 65851da177e4SLinus Torvalds struct compound_hdr hdr; 65861da177e4SLinus Torvalds int status; 65871da177e4SLinus Torvalds 6588bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65899b7b9fccSAndy Adamson if (status) 65909b7b9fccSAndy Adamson goto out; 6591bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65929b7b9fccSAndy Adamson if (status) 65931da177e4SLinus Torvalds goto out; 6594bf269551SChuck Lever status = decode_putfh(xdr); 6595bf269551SChuck Lever if (status) 65961da177e4SLinus Torvalds goto out; 6597bf269551SChuck Lever status = decode_server_caps(xdr, res); 65981da177e4SLinus Torvalds out: 65991da177e4SLinus Torvalds return status; 66001da177e4SLinus Torvalds } 66011da177e4SLinus Torvalds 66021da177e4SLinus Torvalds /* 66031da177e4SLinus Torvalds * Decode RENEW response 66041da177e4SLinus Torvalds */ 6605bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6606bf269551SChuck Lever void *__unused) 66071da177e4SLinus Torvalds { 66081da177e4SLinus Torvalds struct compound_hdr hdr; 66091da177e4SLinus Torvalds int status; 66101da177e4SLinus Torvalds 6611bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66121da177e4SLinus Torvalds if (!status) 6613bf269551SChuck Lever status = decode_renew(xdr); 66141da177e4SLinus Torvalds return status; 66151da177e4SLinus Torvalds } 66161da177e4SLinus Torvalds 66171da177e4SLinus Torvalds /* 66188b173218SRicardo Labiaga * Decode SETCLIENTID response 66191da177e4SLinus Torvalds */ 6620bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6621bf269551SChuck Lever struct xdr_stream *xdr, 6622bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 66231da177e4SLinus Torvalds { 66241da177e4SLinus Torvalds struct compound_hdr hdr; 66251da177e4SLinus Torvalds int status; 66261da177e4SLinus Torvalds 6627bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66281da177e4SLinus Torvalds if (!status) 6629bf269551SChuck Lever status = decode_setclientid(xdr, res); 66301da177e4SLinus Torvalds return status; 66311da177e4SLinus Torvalds } 66321da177e4SLinus Torvalds 66331da177e4SLinus Torvalds /* 66348b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 66351da177e4SLinus Torvalds */ 6636bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6637bf269551SChuck Lever struct xdr_stream *xdr, 6638bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 66391da177e4SLinus Torvalds { 66401da177e4SLinus Torvalds struct compound_hdr hdr; 66411da177e4SLinus Torvalds int status; 66421da177e4SLinus Torvalds 6643bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66441da177e4SLinus Torvalds if (!status) 6645bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 66461da177e4SLinus Torvalds if (!status) 6647bf269551SChuck Lever status = decode_putrootfh(xdr); 66481da177e4SLinus Torvalds if (!status) 6649bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 66501da177e4SLinus Torvalds return status; 66511da177e4SLinus Torvalds } 66521da177e4SLinus Torvalds 66531da177e4SLinus Torvalds /* 66548b173218SRicardo Labiaga * Decode DELEGRETURN response 66551da177e4SLinus Torvalds */ 6656bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6657bf269551SChuck Lever struct xdr_stream *xdr, 6658bf269551SChuck Lever struct nfs4_delegreturnres *res) 66591da177e4SLinus Torvalds { 66601da177e4SLinus Torvalds struct compound_hdr hdr; 66611da177e4SLinus Torvalds int status; 66621da177e4SLinus Torvalds 6663bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66649b7b9fccSAndy Adamson if (status) 66659b7b9fccSAndy Adamson goto out; 6666bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66679b7b9fccSAndy Adamson if (status) 6668fa178f29STrond Myklebust goto out; 6669bf269551SChuck Lever status = decode_putfh(xdr); 6670fa178f29STrond Myklebust if (status != 0) 6671fa178f29STrond Myklebust goto out; 6672e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6673556ae3bbSJeff Layton if (status != 0) 6674556ae3bbSJeff Layton goto out; 6675e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6676fa178f29STrond Myklebust out: 66771da177e4SLinus Torvalds return status; 66781da177e4SLinus Torvalds } 66791da177e4SLinus Torvalds 6680683b57b4STrond Myklebust /* 66818b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6682683b57b4STrond Myklebust */ 6683bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6684bf269551SChuck Lever struct xdr_stream *xdr, 668522958463SBenny Halevy struct nfs4_fs_locations_res *res) 6686683b57b4STrond Myklebust { 6687683b57b4STrond Myklebust struct compound_hdr hdr; 6688683b57b4STrond Myklebust int status; 6689683b57b4STrond Myklebust 6690bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66919b7b9fccSAndy Adamson if (status) 66929b7b9fccSAndy Adamson goto out; 6693bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66949b7b9fccSAndy Adamson if (status) 6695683b57b4STrond Myklebust goto out; 6696bf269551SChuck Lever status = decode_putfh(xdr); 6697bf269551SChuck Lever if (status) 6698683b57b4STrond Myklebust goto out; 6699bf269551SChuck Lever status = decode_lookup(xdr); 6700bf269551SChuck Lever if (status) 6701683b57b4STrond Myklebust goto out; 6702bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 67038b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 67048b7e3f49STrond Myklebust NULL, res->fs_locations, 67056926afd1STrond Myklebust res->fs_locations->server); 6706683b57b4STrond Myklebust out: 6707683b57b4STrond Myklebust return status; 6708683b57b4STrond Myklebust } 6709683b57b4STrond Myklebust 67105a5ea0d4SBryan Schumaker /* 67115a5ea0d4SBryan Schumaker * Decode SECINFO response 67125a5ea0d4SBryan Schumaker */ 67135a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 67145a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 67155a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 67165a5ea0d4SBryan Schumaker { 67175a5ea0d4SBryan Schumaker struct compound_hdr hdr; 67185a5ea0d4SBryan Schumaker int status; 67195a5ea0d4SBryan Schumaker 67205a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 67215a5ea0d4SBryan Schumaker if (status) 67225a5ea0d4SBryan Schumaker goto out; 67235a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 67245a5ea0d4SBryan Schumaker if (status) 67255a5ea0d4SBryan Schumaker goto out; 67265a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 67275a5ea0d4SBryan Schumaker if (status) 67285a5ea0d4SBryan Schumaker goto out; 67295a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 67305a5ea0d4SBryan Schumaker out: 67315a5ea0d4SBryan Schumaker return status; 67325a5ea0d4SBryan Schumaker } 67335a5ea0d4SBryan Schumaker 673499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 673599fe60d0SBenny Halevy /* 67367c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 67377c44f1aeSWeston Andros Adamson */ 67387c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 67397c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 67407c44f1aeSWeston Andros Adamson void *res) 67417c44f1aeSWeston Andros Adamson { 67427c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 67437c44f1aeSWeston Andros Adamson int status; 67447c44f1aeSWeston Andros Adamson 67457c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 67467c44f1aeSWeston Andros Adamson if (!status) 67477c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 67487c44f1aeSWeston Andros Adamson return status; 67497c44f1aeSWeston Andros Adamson } 67507c44f1aeSWeston Andros Adamson 67517c44f1aeSWeston Andros Adamson /* 67528b173218SRicardo Labiaga * Decode EXCHANGE_ID response 675399fe60d0SBenny Halevy */ 6754bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6755bf269551SChuck Lever struct xdr_stream *xdr, 675699fe60d0SBenny Halevy void *res) 675799fe60d0SBenny Halevy { 675899fe60d0SBenny Halevy struct compound_hdr hdr; 675999fe60d0SBenny Halevy int status; 676099fe60d0SBenny Halevy 6761bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 676299fe60d0SBenny Halevy if (!status) 6763bf269551SChuck Lever status = decode_exchange_id(xdr, res); 676499fe60d0SBenny Halevy return status; 676599fe60d0SBenny Halevy } 67662050f0ccSAndy Adamson 67672050f0ccSAndy Adamson /* 67688b173218SRicardo Labiaga * Decode CREATE_SESSION response 6769fc931582SAndy Adamson */ 6770bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6771bf269551SChuck Lever struct xdr_stream *xdr, 6772fc931582SAndy Adamson struct nfs41_create_session_res *res) 6773fc931582SAndy Adamson { 6774fc931582SAndy Adamson struct compound_hdr hdr; 6775fc931582SAndy Adamson int status; 6776fc931582SAndy Adamson 6777bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6778fc931582SAndy Adamson if (!status) 6779bf269551SChuck Lever status = decode_create_session(xdr, res); 6780fc931582SAndy Adamson return status; 6781fc931582SAndy Adamson } 6782fc931582SAndy Adamson 6783fc931582SAndy Adamson /* 67848b173218SRicardo Labiaga * Decode DESTROY_SESSION response 67850f3e66c6SAndy Adamson */ 6786bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6787bf269551SChuck Lever struct xdr_stream *xdr, 6788bf269551SChuck Lever void *res) 67890f3e66c6SAndy Adamson { 67900f3e66c6SAndy Adamson struct compound_hdr hdr; 67910f3e66c6SAndy Adamson int status; 67920f3e66c6SAndy Adamson 6793bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67940f3e66c6SAndy Adamson if (!status) 6795bf269551SChuck Lever status = decode_destroy_session(xdr, res); 67960f3e66c6SAndy Adamson return status; 67970f3e66c6SAndy Adamson } 67980f3e66c6SAndy Adamson 67990f3e66c6SAndy Adamson /* 680066245539STrond Myklebust * Decode DESTROY_CLIENTID response 680166245539STrond Myklebust */ 680266245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 680366245539STrond Myklebust struct xdr_stream *xdr, 680466245539STrond Myklebust void *res) 680566245539STrond Myklebust { 680666245539STrond Myklebust struct compound_hdr hdr; 680766245539STrond Myklebust int status; 680866245539STrond Myklebust 680966245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 681066245539STrond Myklebust if (!status) 681166245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 681266245539STrond Myklebust return status; 681366245539STrond Myklebust } 681466245539STrond Myklebust 681566245539STrond Myklebust /* 68168b173218SRicardo Labiaga * Decode SEQUENCE response 6817fc01cea9SAndy Adamson */ 6818bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6819bf269551SChuck Lever struct xdr_stream *xdr, 6820fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6821fc01cea9SAndy Adamson { 6822fc01cea9SAndy Adamson struct compound_hdr hdr; 6823fc01cea9SAndy Adamson int status; 6824fc01cea9SAndy Adamson 6825bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6826fc01cea9SAndy Adamson if (!status) 6827bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6828fc01cea9SAndy Adamson return status; 6829fc01cea9SAndy Adamson } 6830fc01cea9SAndy Adamson 6831fc01cea9SAndy Adamson /* 68328b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 68332050f0ccSAndy Adamson */ 6834bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6835bf269551SChuck Lever struct xdr_stream *xdr, 68362050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 68372050f0ccSAndy Adamson { 68382050f0ccSAndy Adamson struct compound_hdr hdr; 68392050f0ccSAndy Adamson int status; 68402050f0ccSAndy Adamson 6841bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68422050f0ccSAndy Adamson if (!status) 6843bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 68442050f0ccSAndy Adamson if (!status) 6845bf269551SChuck Lever status = decode_putrootfh(xdr); 68462050f0ccSAndy Adamson if (!status) 6847bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 68482050f0ccSAndy Adamson return status; 68492050f0ccSAndy Adamson } 685018019753SRicardo Labiaga 685118019753SRicardo Labiaga /* 685218019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 685318019753SRicardo Labiaga */ 6854bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6855bf269551SChuck Lever struct xdr_stream *xdr, 685618019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 685718019753SRicardo Labiaga { 685818019753SRicardo Labiaga struct compound_hdr hdr; 685918019753SRicardo Labiaga int status; 686018019753SRicardo Labiaga 6861bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 686218019753SRicardo Labiaga if (!status) 6863bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 686418019753SRicardo Labiaga if (!status) 6865bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 686618019753SRicardo Labiaga return status; 686718019753SRicardo Labiaga } 6868b1f69b75SAndy Adamson 6869b1f69b75SAndy Adamson /* 68707f11d8d3SAndy Adamson * Decode GETDEVICELIST response 68717f11d8d3SAndy Adamson */ 68727f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 68737f11d8d3SAndy Adamson struct xdr_stream *xdr, 68747f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 68757f11d8d3SAndy Adamson { 68767f11d8d3SAndy Adamson struct compound_hdr hdr; 68777f11d8d3SAndy Adamson int status; 68787f11d8d3SAndy Adamson 68797f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 68807f11d8d3SAndy Adamson 68817f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 68827f11d8d3SAndy Adamson if (status != 0) 68837f11d8d3SAndy Adamson goto out; 68847f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 68857f11d8d3SAndy Adamson if (status != 0) 68867f11d8d3SAndy Adamson goto out; 68877f11d8d3SAndy Adamson status = decode_putfh(xdr); 68887f11d8d3SAndy Adamson if (status != 0) 68897f11d8d3SAndy Adamson goto out; 68907f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 68917f11d8d3SAndy Adamson out: 68927f11d8d3SAndy Adamson return status; 68937f11d8d3SAndy Adamson } 68947f11d8d3SAndy Adamson 68957f11d8d3SAndy Adamson /* 6896b1f69b75SAndy Adamson * Decode GETDEVINFO response 6897b1f69b75SAndy Adamson */ 6898bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6899bf269551SChuck Lever struct xdr_stream *xdr, 6900b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6901b1f69b75SAndy Adamson { 6902b1f69b75SAndy Adamson struct compound_hdr hdr; 6903b1f69b75SAndy Adamson int status; 6904b1f69b75SAndy Adamson 6905bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6906b1f69b75SAndy Adamson if (status != 0) 6907b1f69b75SAndy Adamson goto out; 6908bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6909b1f69b75SAndy Adamson if (status != 0) 6910b1f69b75SAndy Adamson goto out; 6911bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6912b1f69b75SAndy Adamson out: 6913b1f69b75SAndy Adamson return status; 6914b1f69b75SAndy Adamson } 6915b1f69b75SAndy Adamson 6916b1f69b75SAndy Adamson /* 6917b1f69b75SAndy Adamson * Decode LAYOUTGET response 6918b1f69b75SAndy Adamson */ 6919bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6920bf269551SChuck Lever struct xdr_stream *xdr, 6921b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6922b1f69b75SAndy Adamson { 6923b1f69b75SAndy Adamson struct compound_hdr hdr; 6924b1f69b75SAndy Adamson int status; 6925b1f69b75SAndy Adamson 6926bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6927b1f69b75SAndy Adamson if (status) 6928b1f69b75SAndy Adamson goto out; 6929bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6930b1f69b75SAndy Adamson if (status) 6931b1f69b75SAndy Adamson goto out; 6932bf269551SChuck Lever status = decode_putfh(xdr); 6933b1f69b75SAndy Adamson if (status) 6934b1f69b75SAndy Adamson goto out; 6935bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6936b1f69b75SAndy Adamson out: 6937b1f69b75SAndy Adamson return status; 6938b1f69b75SAndy Adamson } 6939863a3c6cSAndy Adamson 6940863a3c6cSAndy Adamson /* 6941cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6942cbe82603SBenny Halevy */ 6943cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6944cbe82603SBenny Halevy struct xdr_stream *xdr, 6945cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6946cbe82603SBenny Halevy { 6947cbe82603SBenny Halevy struct compound_hdr hdr; 6948cbe82603SBenny Halevy int status; 6949cbe82603SBenny Halevy 6950cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6951cbe82603SBenny Halevy if (status) 6952cbe82603SBenny Halevy goto out; 6953cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6954cbe82603SBenny Halevy if (status) 6955cbe82603SBenny Halevy goto out; 6956cbe82603SBenny Halevy status = decode_putfh(xdr); 6957cbe82603SBenny Halevy if (status) 6958cbe82603SBenny Halevy goto out; 6959cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6960cbe82603SBenny Halevy out: 6961cbe82603SBenny Halevy return status; 6962cbe82603SBenny Halevy } 6963cbe82603SBenny Halevy 6964cbe82603SBenny Halevy /* 6965863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6966863a3c6cSAndy Adamson */ 6967863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6968863a3c6cSAndy Adamson struct xdr_stream *xdr, 6969863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6970863a3c6cSAndy Adamson { 6971863a3c6cSAndy Adamson struct compound_hdr hdr; 6972863a3c6cSAndy Adamson int status; 6973863a3c6cSAndy Adamson 6974863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6975863a3c6cSAndy Adamson if (status) 6976863a3c6cSAndy Adamson goto out; 6977863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6978863a3c6cSAndy Adamson if (status) 6979863a3c6cSAndy Adamson goto out; 6980863a3c6cSAndy Adamson status = decode_putfh(xdr); 6981863a3c6cSAndy Adamson if (status) 6982863a3c6cSAndy Adamson goto out; 6983863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6984863a3c6cSAndy Adamson if (status) 6985863a3c6cSAndy Adamson goto out; 69866926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6987863a3c6cSAndy Adamson out: 6988863a3c6cSAndy Adamson return status; 6989863a3c6cSAndy Adamson } 6990fca78d6dSBryan Schumaker 6991fca78d6dSBryan Schumaker /* 6992fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 6993fca78d6dSBryan Schumaker */ 6994fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 6995fca78d6dSBryan Schumaker struct xdr_stream *xdr, 6996fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 6997fca78d6dSBryan Schumaker { 6998fca78d6dSBryan Schumaker struct compound_hdr hdr; 6999fca78d6dSBryan Schumaker int status; 7000fca78d6dSBryan Schumaker 7001fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7002fca78d6dSBryan Schumaker if (status) 7003fca78d6dSBryan Schumaker goto out; 7004fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7005fca78d6dSBryan Schumaker if (status) 7006fca78d6dSBryan Schumaker goto out; 7007fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7008fca78d6dSBryan Schumaker if (status) 7009fca78d6dSBryan Schumaker goto out; 701031e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7011fca78d6dSBryan Schumaker out: 7012fca78d6dSBryan Schumaker return status; 7013fca78d6dSBryan Schumaker } 70147d974794SBryan Schumaker 70157d974794SBryan Schumaker /* 70167d974794SBryan Schumaker * Decode TEST_STATEID response 70177d974794SBryan Schumaker */ 70187d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 70197d974794SBryan Schumaker struct xdr_stream *xdr, 70207d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 70217d974794SBryan Schumaker { 70227d974794SBryan Schumaker struct compound_hdr hdr; 70237d974794SBryan Schumaker int status; 70247d974794SBryan Schumaker 70257d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70267d974794SBryan Schumaker if (status) 70277d974794SBryan Schumaker goto out; 70287d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70297d974794SBryan Schumaker if (status) 70307d974794SBryan Schumaker goto out; 70317d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 70327d974794SBryan Schumaker out: 70337d974794SBryan Schumaker return status; 70347d974794SBryan Schumaker } 70359aeda35fSBryan Schumaker 70369aeda35fSBryan Schumaker /* 70379aeda35fSBryan Schumaker * Decode FREE_STATEID response 70389aeda35fSBryan Schumaker */ 70399aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 70409aeda35fSBryan Schumaker struct xdr_stream *xdr, 70419aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 70429aeda35fSBryan Schumaker { 70439aeda35fSBryan Schumaker struct compound_hdr hdr; 70449aeda35fSBryan Schumaker int status; 70459aeda35fSBryan Schumaker 70469aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70479aeda35fSBryan Schumaker if (status) 70489aeda35fSBryan Schumaker goto out; 70499aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70509aeda35fSBryan Schumaker if (status) 70519aeda35fSBryan Schumaker goto out; 70529aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 70539aeda35fSBryan Schumaker out: 70549aeda35fSBryan Schumaker return status; 70559aeda35fSBryan Schumaker } 705699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 705799fe60d0SBenny Halevy 7058573c4e1eSChuck Lever /** 7059573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7060573c4e1eSChuck Lever * the local page cache. 7061573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7062573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7063573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7064573c4e1eSChuck Lever * 7065573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7066573c4e1eSChuck Lever * returned. 7067573c4e1eSChuck Lever * 7068573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7069573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7070573c4e1eSChuck Lever * on a directory already in our cache. 7071573c4e1eSChuck Lever */ 7072573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7073573c4e1eSChuck Lever int plus) 70741da177e4SLinus Torvalds { 7075256e48bbSTrond Myklebust unsigned int savep; 7076dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 70771da177e4SLinus Torvalds uint32_t len; 7078babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7079babddc72SBryan Schumaker if (unlikely(!p)) 7080babddc72SBryan Schumaker goto out_overflow; 7081c08e76d0SChuck Lever if (*p == xdr_zero) { 7082babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7083babddc72SBryan Schumaker if (unlikely(!p)) 7084babddc72SBryan Schumaker goto out_overflow; 7085c08e76d0SChuck Lever if (*p == xdr_zero) 7086573c4e1eSChuck Lever return -EAGAIN; 70871da177e4SLinus Torvalds entry->eof = 1; 7088573c4e1eSChuck Lever return -EBADCOOKIE; 70891da177e4SLinus Torvalds } 70901da177e4SLinus Torvalds 7091babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7092babddc72SBryan Schumaker if (unlikely(!p)) 7093babddc72SBryan Schumaker goto out_overflow; 70941da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 70951da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7096c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7097babddc72SBryan Schumaker 70989af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7099babddc72SBryan Schumaker if (unlikely(!p)) 7100babddc72SBryan Schumaker goto out_overflow; 71011da177e4SLinus Torvalds entry->name = (const char *) p; 71021da177e4SLinus Torvalds 71031da177e4SLinus Torvalds /* 71041da177e4SLinus Torvalds * In case the server doesn't return an inode number, 71051da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 71061da177e4SLinus Torvalds * since glibc seems to choke on it...) 71071da177e4SLinus Torvalds */ 71081da177e4SLinus Torvalds entry->ino = 1; 71094f082222STrond Myklebust entry->fattr->valid = 0; 71101da177e4SLinus Torvalds 71119af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7112babddc72SBryan Schumaker goto out_overflow; 71139af8c222STrond Myklebust 7114256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7115babddc72SBryan Schumaker goto out_overflow; 71169af8c222STrond Myklebust 7117573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 71188b7e3f49STrond Myklebust NULL, entry->server) < 0) 7119babddc72SBryan Schumaker goto out_overflow; 712028331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 712128331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 712228331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 712382f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 71249af8c222STrond Myklebust 71250b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 71260b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 71270b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 71280b26a0bfSTrond Myklebust 7129573c4e1eSChuck Lever return 0; 7130babddc72SBryan Schumaker 7131babddc72SBryan Schumaker out_overflow: 7132babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7133573c4e1eSChuck Lever return -EAGAIN; 71341da177e4SLinus Torvalds } 71351da177e4SLinus Torvalds 71361da177e4SLinus Torvalds /* 71371da177e4SLinus Torvalds * We need to translate between nfs status return values and 71381da177e4SLinus Torvalds * the local errno values which may not be the same. 71391da177e4SLinus Torvalds */ 71401da177e4SLinus Torvalds static struct { 71411da177e4SLinus Torvalds int stat; 71421da177e4SLinus Torvalds int errno; 71431da177e4SLinus Torvalds } nfs_errtbl[] = { 71441da177e4SLinus Torvalds { NFS4_OK, 0 }, 7145856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7146856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7147856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7148856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7149856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7150856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7151856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7152856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7153856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7154856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7155856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7156856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7157856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7158856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7159856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7160856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7161856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7162856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7163856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7164856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7165856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7166856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7167fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7168856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7169856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7170856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7171856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7172856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7173856dff3dSBenny Halevy { -1, -EIO } 71741da177e4SLinus Torvalds }; 71751da177e4SLinus Torvalds 71761da177e4SLinus Torvalds /* 71771da177e4SLinus Torvalds * Convert an NFS error code to a local one. 71781da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 71791da177e4SLinus Torvalds */ 71801da177e4SLinus Torvalds static int 71810a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 71821da177e4SLinus Torvalds { 71831da177e4SLinus Torvalds int i; 71841da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 71851da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 71861da177e4SLinus Torvalds return nfs_errtbl[i].errno; 71871da177e4SLinus Torvalds } 71881da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 71891da177e4SLinus Torvalds /* The server is looney tunes. */ 7190fdcb4577STrond Myklebust return -EREMOTEIO; 71911da177e4SLinus Torvalds } 71921da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 71931da177e4SLinus Torvalds * handle it. 71941da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 71951da177e4SLinus Torvalds * not conflict with native Linux error codes. 71961da177e4SLinus Torvalds */ 7197856dff3dSBenny Halevy return -stat; 71981da177e4SLinus Torvalds } 71991da177e4SLinus Torvalds 72001da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 72011da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 72021da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 72039f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7204bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 72052bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 72062bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7207cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7208cc0175c1SChuck Lever .p_name = #proc, \ 72091da177e4SLinus Torvalds } 72101da177e4SLinus Torvalds 72111da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 72121da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 72131da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 72141da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 72151da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 72161da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 72171da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 72181da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 72191da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 72201da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 72211da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 72221da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 72231da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 72241da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 72251da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 72261da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 72271da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 72281da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 72291da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 72301da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 72311da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 72321da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 72331da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 72341da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 72351da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 72361da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 72371da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 72381da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 72391da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 72401da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 72411da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 72421da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7243029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 724423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7245683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7246d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 72475a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 724899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 724999fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7250fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 72510f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7252fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 72532050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 725418019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7255b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7256b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7257863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7258cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7259fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 72607d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 72619aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 72627f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 7263ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7264ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 726566245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 726699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 72671da177e4SLinus Torvalds }; 72681da177e4SLinus Torvalds 7269a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 72701da177e4SLinus Torvalds .number = 4, 7271e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 72721da177e4SLinus Torvalds .procs = nfs4_procedures 72731da177e4SLinus Torvalds }; 72741da177e4SLinus Torvalds 72751da177e4SLinus Torvalds /* 72761da177e4SLinus Torvalds * Local variables: 72771da177e4SLinus Torvalds * c-basic-offset: 8 72781da177e4SLinus Torvalds * End: 72791da177e4SLinus Torvalds */ 7280