11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * fs/nfs/nfs4xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side XDR for NFSv4. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 The Regents of the University of Michigan. 71da177e4SLinus Torvalds * All rights reserved. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Kendrick Smith <kmsmith@umich.edu> 101da177e4SLinus Torvalds * Andy Adamson <andros@umich.edu> 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4SLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4SLinus Torvalds * are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * 1. Redistributions of source code must retain the above copyright 171da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer. 181da177e4SLinus Torvalds * 2. Redistributions in binary form must reproduce the above copyright 191da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer in the 201da177e4SLinus Torvalds * documentation and/or other materials provided with the distribution. 211da177e4SLinus Torvalds * 3. Neither the name of the University nor the names of its 221da177e4SLinus Torvalds * contributors may be used to endorse or promote products derived 231da177e4SLinus Torvalds * from this software without specific prior written permission. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 261da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 281da177e4SLinus Torvalds * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291da177e4SLinus Torvalds * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 301da177e4SLinus Torvalds * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 311da177e4SLinus Torvalds * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 321da177e4SLinus Torvalds * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 331da177e4SLinus Torvalds * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 341da177e4SLinus Torvalds * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 351da177e4SLinus Torvalds * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361da177e4SLinus Torvalds */ 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/param.h> 391da177e4SLinus Torvalds #include <linux/time.h> 401da177e4SLinus Torvalds #include <linux/mm.h> 411da177e4SLinus Torvalds #include <linux/errno.h> 421da177e4SLinus Torvalds #include <linux/string.h> 431da177e4SLinus Torvalds #include <linux/in.h> 441da177e4SLinus Torvalds #include <linux/pagemap.h> 451da177e4SLinus Torvalds #include <linux/proc_fs.h> 461da177e4SLinus Torvalds #include <linux/kdev_t.h> 47db8ac8baSWeston Andros Adamson #include <linux/module.h> 48db8ac8baSWeston Andros Adamson #include <linux/utsname.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 502449ea2eSAlexandros Batsakis #include <linux/sunrpc/msg_prot.h> 515a5ea0d4SBryan Schumaker #include <linux/sunrpc/gss_api.h> 521da177e4SLinus Torvalds #include <linux/nfs.h> 531da177e4SLinus Torvalds #include <linux/nfs4.h> 541da177e4SLinus Torvalds #include <linux/nfs_fs.h> 551da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 56f092075dSChuck Lever 574ce79717STrond Myklebust #include "nfs4_fs.h" 584882ef72SAlexandros Batsakis #include "internal.h" 5976e697baSTrond Myklebust #include "nfs4session.h" 60b1f69b75SAndy Adamson #include "pnfs.h" 61f092075dSChuck Lever #include "netns.h" 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 641da177e4SLinus Torvalds 651da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 661da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 671da177e4SLinus Torvalds 680a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 711da177e4SLinus Torvalds #ifdef DEBUG 721da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 731da177e4SLinus Torvalds #else 741da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 751da177e4SLinus Torvalds #endif 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds /* lock,open owner id: 789f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 791da177e4SLinus Torvalds */ 8095b72eb0STrond Myklebust #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) 81d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 829104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 831da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 841da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 851da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 861da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 879104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 889104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 899104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 909104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 911da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 921da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 931da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 941da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 951da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 961da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 971da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 981da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 99e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 10096928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 1011da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 1021da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 103bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 104bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 105aa9c2669SDavid Quigley #ifdef CONFIG_NFS_V4_SECURITY_LABEL 106aa9c2669SDavid Quigley /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */ 107aa9c2669SDavid Quigley #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN)) 108aa9c2669SDavid Quigley #else 109aa9c2669SDavid Quigley #define nfs4_label_maxsz 0 110aa9c2669SDavid Quigley #endif 11188034c3dSAndy Adamson /* We support only one layout type per file system */ 11288034c3dSAndy Adamson #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) 11396928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 11496928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 11588034c3dSAndy Adamson 3 + 3 + 3 + nfs4_owner_maxsz + \ 116aa9c2669SDavid Quigley nfs4_group_maxsz + nfs4_label_maxsz + \ 117aa9c2669SDavid Quigley decode_mdsthreshold_maxsz)) 11896928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 11996928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 12096928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1219104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1229104a55dSTrond Myklebust 1 + 2 + 1 + \ 1239104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1249104a55dSTrond Myklebust nfs4_group_maxsz + \ 125aa9c2669SDavid Quigley nfs4_label_maxsz + \ 1269104a55dSTrond Myklebust 4 + 4) 1271da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1281da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 12956ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 13056ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1312f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 132dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 133dae100c2SFred Isaman * layout types will be returned. 134dae100c2SFred Isaman */ 135dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 136dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1371da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1381da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1391da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1401da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 141cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 142cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 143cc38bac3SChuck Lever 1 /* sc_prog */ + \ 144cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 145cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 146cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1471da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1481da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1491da177e4SLinus Torvalds 2 + \ 1501da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1511da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1521da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1531da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1541da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1551da177e4SLinus Torvalds (op_decode_hdr_maxsz) 156e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 157e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1582cebf828STrond Myklebust #define encode_share_access_maxsz \ 1592cebf828STrond Myklebust (2) 1604882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1612cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1622cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1632cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1642cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1652cebf828STrond Myklebust open_owner_id_maxsz + \ 1662cebf828STrond Myklebust encode_opentype_maxsz + \ 1672cebf828STrond Myklebust encode_claim_null_maxsz) 1682cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1699104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1702cebf828STrond Myklebust decode_ace_maxsz) 1712cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1722cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1739104a55dSTrond Myklebust decode_stateid_maxsz + \ 1742cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1752cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1762cebf828STrond Myklebust decode_delegation_maxsz) 1779104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1789104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1799104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1809104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1819104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1829104a55dSTrond Myklebust decode_stateid_maxsz) 1839104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1849104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1859104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1869104a55dSTrond Myklebust encode_share_access_maxsz) 1879104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1889104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust decode_stateid_maxsz) 1909104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1919104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1929104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1939104a55dSTrond Myklebust decode_stateid_maxsz) 1949104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1959104a55dSTrond Myklebust encode_stateid_maxsz + \ 1969104a55dSTrond Myklebust encode_attrs_maxsz) 1979104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1989104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1999104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 2009104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2019104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 2029104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 203aa9c2669SDavid Quigley 2 + encode_verifier_maxsz + 5 + \ 204aa9c2669SDavid Quigley nfs4_label_maxsz) 2059104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 206aa9c2669SDavid Quigley decode_verifier_maxsz + \ 207aa9c2669SDavid Quigley nfs4_label_maxsz + nfs4_fattr_maxsz) 2089104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 2099104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 2109104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2119104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2129104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2139104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2149104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2159104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2169104a55dSTrond Myklebust decode_verifier_maxsz) 2171da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2181da177e4SLinus Torvalds nfs4_name_maxsz) 2196ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2206ce18391SBenny Halevy decode_change_info_maxsz) 2211da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2221da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2236ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2246ce18391SBenny Halevy decode_change_info_maxsz + \ 2256ce18391SBenny Halevy decode_change_info_maxsz) 2261da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2271da177e4SLinus Torvalds nfs4_name_maxsz) 2286ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 229daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2309104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2319104a55dSTrond Myklebust 7 + \ 232daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 233daccbdedSTrond Myklebust encode_lockowner_maxsz) 2349104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2359104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2369104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2379104a55dSTrond Myklebust decode_lock_denied_maxsz) 238daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 239daccbdedSTrond Myklebust encode_lockowner_maxsz) 2409104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2419104a55dSTrond Myklebust decode_lock_denied_maxsz) 2429104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2439104a55dSTrond Myklebust encode_stateid_maxsz + \ 2449104a55dSTrond Myklebust 4) 2459104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2469104a55dSTrond Myklebust decode_stateid_maxsz) 247d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 248d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 249d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 250d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 251d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2529104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2539104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2541da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2551da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 25694a6d753SChuck Lever 1 + \ 25796928206SJ. Bruce Fields nfs4_fattr_maxsz) 2581da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2591da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2609104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2619104a55dSTrond Myklebust encode_attrs_maxsz) 2622cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2632cebf828STrond Myklebust decode_change_info_maxsz + \ 2642cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2659104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2669104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2671da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2681da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2699104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2709104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2719104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2729104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2739104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2749104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 275e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 276e6889620STrond Myklebust (encode_getattr_maxsz) 277e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 278e6889620STrond Myklebust (0) 2795a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2801650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2819b7b9fccSAndy Adamson 2829b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 283fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 284d751f748SJim Rees #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ 285d751f748SJim Rees sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) 286fc931582SAndy Adamson 28799fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 28899fe60d0SBenny Halevy encode_verifier_maxsz + \ 28999fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 29099fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 29199fe60d0SBenny Halevy 1 /* flags */ + \ 29299fe60d0SBenny Halevy 1 /* spa_how */ + \ 2932031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 2942031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 2952031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 296db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 297db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 298db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 299db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 300d751f748SJim Rees XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 301db8ac8baSWeston Andros Adamson 3 /* nii_date */) 30299fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 30399fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 30499fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 30599fe60d0SBenny Halevy 1 /* eir_flags */ + \ 30699fe60d0SBenny Halevy 1 /* spr_how */ + \ 3072031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 3082031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 3092031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 31099fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 31199fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 31299fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 31399fe60d0SBenny Halevy /* eir_server_scope<> */ \ 31499fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 31599fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 3167d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3177d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3187d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3197d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3207d2ed9acSWeston Andros Adamson 3 /* nii_date */) 321fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 322fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 323fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 324fc931582SAndy Adamson 1 /* ca_rdma_ird */) 325fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 326fc931582SAndy Adamson 2 /* csa_clientid */ + \ 327fc931582SAndy Adamson 1 /* csa_sequence */ + \ 328fc931582SAndy Adamson 1 /* csa_flags */ + \ 329fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 330fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 331fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 332fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 333fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 334fc931582SAndy Adamson 1 /* stamp */ + \ 335fc931582SAndy Adamson 1 /* machinename.len */ + \ 336fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 337fc931582SAndy Adamson 1 /* uid */ + \ 338fc931582SAndy Adamson 1 /* gid */ + \ 339fc931582SAndy Adamson 1 /* gids.len (0) */) 340fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 341fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 342fc931582SAndy Adamson 1 /* csr_sequence */ + \ 343fc931582SAndy Adamson 1 /* csr_flags */ + \ 344fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 345fc931582SAndy Adamson decode_channel_attrs_maxsz) 3467c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3477c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3487c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3497c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3507c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3517c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3527c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3537c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3547c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3557c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3560f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3570f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 35866245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 35966245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 360fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 361fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 362fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 363fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 36418019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 36518019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3667f11d8d3SAndy Adamson #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ 3677f11d8d3SAndy Adamson encode_verifier_maxsz) 3687f11d8d3SAndy Adamson #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ 3697f11d8d3SAndy Adamson 2 /* nfs_cookie4 gdlr_cookie */ + \ 3707f11d8d3SAndy Adamson decode_verifier_maxsz \ 3717f11d8d3SAndy Adamson /* verifier4 gdlr_verifier */ + \ 3727f11d8d3SAndy Adamson 1 /* gdlr_deviceid_list count */ + \ 3737f11d8d3SAndy Adamson XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ 3747f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE) \ 3757f11d8d3SAndy Adamson /* gdlr_deviceid_list */ + \ 3767f11d8d3SAndy Adamson 1 /* bool gdlr_eof */) 377b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 378b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 379b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 380b1f69b75SAndy Adamson 1 /* layout type */ + \ 381b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 382b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 383b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 384b1f69b75SAndy Adamson 1 /* notification bitmap */) 385b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 386b1f69b75SAndy Adamson encode_stateid_maxsz) 387b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 388b1f69b75SAndy Adamson decode_stateid_maxsz + \ 389b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 390863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 391863a3c6cSAndy Adamson 2 /* offset */ + \ 392863a3c6cSAndy Adamson 2 /* length */ + \ 393863a3c6cSAndy Adamson 1 /* reclaim */ + \ 394863a3c6cSAndy Adamson encode_stateid_maxsz + \ 395863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 396863a3c6cSAndy Adamson 2 /* last byte written */ + \ 397863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 398863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 399863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 400863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 401cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 402cbe82603SBenny Halevy encode_stateid_maxsz + \ 403cbe82603SBenny Halevy 1 /* FIXME: opaque lrf_body always empty at the moment */) 404cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 405cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 406fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 407fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 4087d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 4097d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4107d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 4119aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 4129aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4139f79fb48SAndy Adamson #define decode_free_stateid_maxsz (op_decode_hdr_maxsz) 4149b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 4159b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 4169b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 4179b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4189b7b9fccSAndy Adamson 4191da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4201da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4211da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4231da177e4SLinus Torvalds encode_putfh_maxsz + \ 4249104a55dSTrond Myklebust encode_read_maxsz) 4251da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4269b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4271da177e4SLinus Torvalds decode_putfh_maxsz + \ 4289104a55dSTrond Myklebust decode_read_maxsz) 4291da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4309b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4311da177e4SLinus Torvalds encode_putfh_maxsz + \ 4329104a55dSTrond Myklebust encode_readlink_maxsz) 4331da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4351da177e4SLinus Torvalds decode_putfh_maxsz + \ 4369104a55dSTrond Myklebust decode_readlink_maxsz) 4371da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4389b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4391da177e4SLinus Torvalds encode_putfh_maxsz + \ 4409104a55dSTrond Myklebust encode_readdir_maxsz) 4411da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4431da177e4SLinus Torvalds decode_putfh_maxsz + \ 4449104a55dSTrond Myklebust decode_readdir_maxsz) 4451da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4469b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4471da177e4SLinus Torvalds encode_putfh_maxsz + \ 4489104a55dSTrond Myklebust encode_write_maxsz + \ 4494f9838c7STrond Myklebust encode_getattr_maxsz) 4501da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4519b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4521da177e4SLinus Torvalds decode_putfh_maxsz + \ 4539104a55dSTrond Myklebust decode_write_maxsz + \ 4544f9838c7STrond Myklebust decode_getattr_maxsz) 4551da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4569b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4571da177e4SLinus Torvalds encode_putfh_maxsz + \ 4588582715eSTrond Myklebust encode_commit_maxsz) 4591da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4609b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4611da177e4SLinus Torvalds decode_putfh_maxsz + \ 4628582715eSTrond Myklebust decode_commit_maxsz) 4631da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4649b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4651da177e4SLinus Torvalds encode_putfh_maxsz + \ 4662cebf828STrond Myklebust encode_open_maxsz + \ 4676168f62cSWeston Andros Adamson encode_access_maxsz + \ 4682cebf828STrond Myklebust encode_getfh_maxsz + \ 4692cebf828STrond Myklebust encode_getattr_maxsz) 4701da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4719b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4721da177e4SLinus Torvalds decode_putfh_maxsz + \ 4732cebf828STrond Myklebust decode_open_maxsz + \ 4746168f62cSWeston Andros Adamson decode_access_maxsz + \ 4752cebf828STrond Myklebust decode_getfh_maxsz + \ 4762cebf828STrond Myklebust decode_getattr_maxsz) 4771da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4781da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4791da177e4SLinus Torvalds encode_putfh_maxsz + \ 4809104a55dSTrond Myklebust encode_open_confirm_maxsz) 4819104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4829104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4831da177e4SLinus Torvalds decode_putfh_maxsz + \ 4849104a55dSTrond Myklebust decode_open_confirm_maxsz) 4851da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4869b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4871da177e4SLinus Torvalds encode_putfh_maxsz + \ 4882cebf828STrond Myklebust encode_open_maxsz + \ 4896168f62cSWeston Andros Adamson encode_access_maxsz + \ 4902cebf828STrond Myklebust encode_getattr_maxsz) 4911da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4929b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4931da177e4SLinus Torvalds decode_putfh_maxsz + \ 4942cebf828STrond Myklebust decode_open_maxsz + \ 4956168f62cSWeston Andros Adamson decode_access_maxsz + \ 4962cebf828STrond Myklebust decode_getattr_maxsz) 4971da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4981da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4999b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5001da177e4SLinus Torvalds encode_putfh_maxsz + \ 5019104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 502516a6af6STrond Myklebust encode_getattr_maxsz) 5031da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 5041da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5059b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5061da177e4SLinus Torvalds decode_putfh_maxsz + \ 5079104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 508516a6af6STrond Myklebust decode_getattr_maxsz) 5091da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 5109b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5111da177e4SLinus Torvalds encode_putfh_maxsz + \ 5129104a55dSTrond Myklebust encode_close_maxsz + \ 513516a6af6STrond Myklebust encode_getattr_maxsz) 5141da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 5159b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5161da177e4SLinus Torvalds decode_putfh_maxsz + \ 5179104a55dSTrond Myklebust decode_close_maxsz + \ 518516a6af6STrond Myklebust decode_getattr_maxsz) 5191da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5209b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5211da177e4SLinus Torvalds encode_putfh_maxsz + \ 5229104a55dSTrond Myklebust encode_setattr_maxsz + \ 5231da177e4SLinus Torvalds encode_getattr_maxsz) 5241da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5261da177e4SLinus Torvalds decode_putfh_maxsz + \ 5279104a55dSTrond Myklebust decode_setattr_maxsz + \ 5289104a55dSTrond Myklebust decode_getattr_maxsz) 5291da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5309b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5311da177e4SLinus Torvalds encode_putfh_maxsz + \ 5321da177e4SLinus Torvalds encode_fsinfo_maxsz) 5331da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5351da177e4SLinus Torvalds decode_putfh_maxsz + \ 5361da177e4SLinus Torvalds decode_fsinfo_maxsz) 5371da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5381da177e4SLinus Torvalds encode_renew_maxsz) 5391da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5401da177e4SLinus Torvalds decode_renew_maxsz) 5411da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5421da177e4SLinus Torvalds encode_setclientid_maxsz) 5431da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5441da177e4SLinus Torvalds decode_setclientid_maxsz) 5451da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5461da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 54783ca7f5aSChuck Lever encode_setclientid_confirm_maxsz) 5481da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5491da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 55083ca7f5aSChuck Lever decode_setclientid_confirm_maxsz) 5511da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5529b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5531da177e4SLinus Torvalds encode_putfh_maxsz + \ 5549104a55dSTrond Myklebust encode_lock_maxsz) 5551da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5569b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5571da177e4SLinus Torvalds decode_putfh_maxsz + \ 5589104a55dSTrond Myklebust decode_lock_maxsz) 5591da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5609b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5611da177e4SLinus Torvalds encode_putfh_maxsz + \ 5629104a55dSTrond Myklebust encode_lockt_maxsz) 5639104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5659104a55dSTrond Myklebust decode_putfh_maxsz + \ 5669104a55dSTrond Myklebust decode_lockt_maxsz) 5671da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5689b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5691da177e4SLinus Torvalds encode_putfh_maxsz + \ 5709104a55dSTrond Myklebust encode_locku_maxsz) 5711da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5729b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5731da177e4SLinus Torvalds decode_putfh_maxsz + \ 5749104a55dSTrond Myklebust decode_locku_maxsz) 575d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 576d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 577d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 578d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 579d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 580d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5811da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5829b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5831da177e4SLinus Torvalds encode_putfh_maxsz + \ 58476b32999STrond Myklebust encode_access_maxsz + \ 58576b32999STrond Myklebust encode_getattr_maxsz) 5861da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5879b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5881da177e4SLinus Torvalds decode_putfh_maxsz + \ 58976b32999STrond Myklebust decode_access_maxsz + \ 59076b32999STrond Myklebust decode_getattr_maxsz) 5911da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5931da177e4SLinus Torvalds encode_putfh_maxsz + \ 59444c99933SChuck Lever encode_getattr_maxsz + \ 59544c99933SChuck Lever encode_renew_maxsz) 5961da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5981da177e4SLinus Torvalds decode_putfh_maxsz + \ 59944c99933SChuck Lever decode_getattr_maxsz + \ 60044c99933SChuck Lever decode_renew_maxsz) 6011da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 6029b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6031da177e4SLinus Torvalds encode_putfh_maxsz + \ 6041da177e4SLinus Torvalds encode_lookup_maxsz + \ 6051da177e4SLinus Torvalds encode_getattr_maxsz + \ 6061da177e4SLinus Torvalds encode_getfh_maxsz) 6071da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 6089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6091da177e4SLinus Torvalds decode_putfh_maxsz + \ 610e6889620STrond Myklebust decode_lookup_maxsz + \ 6111da177e4SLinus Torvalds decode_getattr_maxsz + \ 6121da177e4SLinus Torvalds decode_getfh_maxsz) 6131da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 6149b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6151da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6161da177e4SLinus Torvalds encode_getattr_maxsz + \ 6171da177e4SLinus Torvalds encode_getfh_maxsz) 6181da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6199b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6201da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6211da177e4SLinus Torvalds decode_getattr_maxsz + \ 6221da177e4SLinus Torvalds decode_getfh_maxsz) 6231da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6249b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6251da177e4SLinus Torvalds encode_putfh_maxsz + \ 626778d2817STrond Myklebust encode_remove_maxsz) 6271da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6289b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6291da177e4SLinus Torvalds decode_putfh_maxsz + \ 630778d2817STrond Myklebust decode_remove_maxsz) 6311da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6329b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6331da177e4SLinus Torvalds encode_putfh_maxsz + \ 6341da177e4SLinus Torvalds encode_savefh_maxsz + \ 6351da177e4SLinus Torvalds encode_putfh_maxsz + \ 636778d2817STrond Myklebust encode_rename_maxsz) 6371da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6389b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6391da177e4SLinus Torvalds decode_putfh_maxsz + \ 6401da177e4SLinus Torvalds decode_savefh_maxsz + \ 6411da177e4SLinus Torvalds decode_putfh_maxsz + \ 642778d2817STrond Myklebust decode_rename_maxsz) 6431da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6449b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6451da177e4SLinus Torvalds encode_putfh_maxsz + \ 6461da177e4SLinus Torvalds encode_savefh_maxsz + \ 6471da177e4SLinus Torvalds encode_putfh_maxsz + \ 64891ba2eeeSTrond Myklebust encode_link_maxsz + \ 64991ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 650a9f6991bSTrond Myklebust encode_getattr_maxsz) 6511da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6529b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6531da177e4SLinus Torvalds decode_putfh_maxsz + \ 6541da177e4SLinus Torvalds decode_savefh_maxsz + \ 6551da177e4SLinus Torvalds decode_putfh_maxsz + \ 65691ba2eeeSTrond Myklebust decode_link_maxsz + \ 65791ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 65891ba2eeeSTrond Myklebust decode_getattr_maxsz) 6591da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6609b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6611da177e4SLinus Torvalds encode_putfh_maxsz + \ 6621da177e4SLinus Torvalds encode_symlink_maxsz + \ 6631da177e4SLinus Torvalds encode_getattr_maxsz + \ 6641da177e4SLinus Torvalds encode_getfh_maxsz) 6651da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6669b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6671da177e4SLinus Torvalds decode_putfh_maxsz + \ 6681da177e4SLinus Torvalds decode_symlink_maxsz + \ 6691da177e4SLinus Torvalds decode_getattr_maxsz + \ 6701da177e4SLinus Torvalds decode_getfh_maxsz) 6711da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6729b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6731da177e4SLinus Torvalds encode_putfh_maxsz + \ 6741da177e4SLinus Torvalds encode_create_maxsz + \ 67556ae19f3STrond Myklebust encode_getfh_maxsz + \ 67656ae19f3STrond Myklebust encode_getattr_maxsz) 6771da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6789b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6791da177e4SLinus Torvalds decode_putfh_maxsz + \ 6801da177e4SLinus Torvalds decode_create_maxsz + \ 68156ae19f3STrond Myklebust decode_getfh_maxsz + \ 68256ae19f3STrond Myklebust decode_getattr_maxsz) 6831da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6849b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6851da177e4SLinus Torvalds encode_putfh_maxsz + \ 6861da177e4SLinus Torvalds encode_getattr_maxsz) 6871da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6889b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6891da177e4SLinus Torvalds decode_putfh_maxsz + \ 6901da177e4SLinus Torvalds decode_getattr_maxsz) 6911da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6931da177e4SLinus Torvalds encode_putfh_maxsz + \ 6949104a55dSTrond Myklebust encode_statfs_maxsz) 6951da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6971da177e4SLinus Torvalds decode_putfh_maxsz + \ 6989104a55dSTrond Myklebust decode_statfs_maxsz) 6991da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 7009b7b9fccSAndy Adamson encode_sequence_maxsz + \ 701ab91f264STrond Myklebust encode_putfh_maxsz + \ 7021da177e4SLinus Torvalds encode_getattr_maxsz) 7031da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 7049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 705ab91f264STrond Myklebust decode_putfh_maxsz + \ 7061da177e4SLinus Torvalds decode_getattr_maxsz) 7071da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 7089b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7091da177e4SLinus Torvalds encode_putfh_maxsz + \ 710fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 711fa178f29STrond Myklebust encode_getattr_maxsz) 7121da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 714fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 715fa178f29STrond Myklebust decode_getattr_maxsz) 716029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7179b7b9fccSAndy Adamson encode_sequence_maxsz + \ 718029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7199104a55dSTrond Myklebust encode_getacl_maxsz) 720029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7219b7b9fccSAndy Adamson decode_sequence_maxsz + \ 722029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7239104a55dSTrond Myklebust decode_getacl_maxsz) 72423ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7259b7b9fccSAndy Adamson encode_sequence_maxsz + \ 72623ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7279104a55dSTrond Myklebust encode_setacl_maxsz) 72823ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7299b7b9fccSAndy Adamson decode_sequence_maxsz + \ 73023ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7319104a55dSTrond Myklebust decode_setacl_maxsz) 732683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 733683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7349b7b9fccSAndy Adamson encode_sequence_maxsz + \ 735683b57b4STrond Myklebust encode_putfh_maxsz + \ 736e6889620STrond Myklebust encode_lookup_maxsz + \ 737b03d735bSChuck Lever encode_fs_locations_maxsz + \ 738b03d735bSChuck Lever encode_renew_maxsz) 739683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 740683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7419b7b9fccSAndy Adamson decode_sequence_maxsz + \ 742683b57b4STrond Myklebust decode_putfh_maxsz + \ 743e6889620STrond Myklebust decode_lookup_maxsz + \ 744b03d735bSChuck Lever decode_fs_locations_maxsz + \ 745b03d735bSChuck Lever decode_renew_maxsz) 7465a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7475a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7485a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7495a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7505a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7515a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7525a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7535a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 75444c99933SChuck Lever #define NFS4_enc_fsid_present_sz \ 75544c99933SChuck Lever (compound_encode_hdr_maxsz + \ 75644c99933SChuck Lever encode_sequence_maxsz + \ 75744c99933SChuck Lever encode_putfh_maxsz + \ 75844c99933SChuck Lever encode_getfh_maxsz + \ 75944c99933SChuck Lever encode_renew_maxsz) 76044c99933SChuck Lever #define NFS4_dec_fsid_present_sz \ 76144c99933SChuck Lever (compound_decode_hdr_maxsz + \ 76244c99933SChuck Lever decode_sequence_maxsz + \ 76344c99933SChuck Lever decode_putfh_maxsz + \ 76444c99933SChuck Lever decode_getfh_maxsz + \ 76544c99933SChuck Lever decode_renew_maxsz) 76699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7677c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7687c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7697c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7707c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7717c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7727c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 77399fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 77499fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 77599fe60d0SBenny Halevy encode_exchange_id_maxsz) 77699fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 77799fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 77899fe60d0SBenny Halevy decode_exchange_id_maxsz) 779fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 780fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 781fc931582SAndy Adamson encode_create_session_maxsz) 782fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 783fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 784fc931582SAndy Adamson decode_create_session_maxsz) 7850f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7860f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7870f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7880f3e66c6SAndy Adamson decode_destroy_session_maxsz) 78966245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 79066245539STrond Myklebust encode_destroy_clientid_maxsz) 79166245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 79266245539STrond Myklebust decode_destroy_clientid_maxsz) 793fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 794fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 795fc01cea9SAndy Adamson encode_sequence_maxsz) 796fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 797fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 798fc01cea9SAndy Adamson decode_sequence_maxsz) 7992050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 8002050f0ccSAndy Adamson encode_sequence_maxsz + \ 8012050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 8022050f0ccSAndy Adamson encode_fsinfo_maxsz) 8032050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 8042050f0ccSAndy Adamson decode_sequence_maxsz + \ 8052050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 8062050f0ccSAndy Adamson decode_fsinfo_maxsz) 80718019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 80818019753SRicardo Labiaga encode_sequence_maxsz + \ 80918019753SRicardo Labiaga encode_reclaim_complete_maxsz) 81018019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 81118019753SRicardo Labiaga decode_sequence_maxsz + \ 81218019753SRicardo Labiaga decode_reclaim_complete_maxsz) 8137f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 8147f11d8d3SAndy Adamson encode_sequence_maxsz + \ 8157f11d8d3SAndy Adamson encode_putfh_maxsz + \ 8167f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 8177f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 8187f11d8d3SAndy Adamson decode_sequence_maxsz + \ 8197f11d8d3SAndy Adamson decode_putfh_maxsz + \ 8207f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 821b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 822b1f69b75SAndy Adamson encode_sequence_maxsz +\ 823b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 824b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 825b1f69b75SAndy Adamson decode_sequence_maxsz + \ 826b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 827b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 828b1f69b75SAndy Adamson encode_sequence_maxsz + \ 829b1f69b75SAndy Adamson encode_putfh_maxsz + \ 830b1f69b75SAndy Adamson encode_layoutget_maxsz) 831b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 832b1f69b75SAndy Adamson decode_sequence_maxsz + \ 833b1f69b75SAndy Adamson decode_putfh_maxsz + \ 834b1f69b75SAndy Adamson decode_layoutget_maxsz) 835863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 836863a3c6cSAndy Adamson encode_sequence_maxsz +\ 837863a3c6cSAndy Adamson encode_putfh_maxsz + \ 838863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 839863a3c6cSAndy Adamson encode_getattr_maxsz) 840863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 841863a3c6cSAndy Adamson decode_sequence_maxsz + \ 842863a3c6cSAndy Adamson decode_putfh_maxsz + \ 843863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 844863a3c6cSAndy Adamson decode_getattr_maxsz) 845cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 846cbe82603SBenny Halevy encode_sequence_maxsz + \ 847cbe82603SBenny Halevy encode_putfh_maxsz + \ 848cbe82603SBenny Halevy encode_layoutreturn_maxsz) 849cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 850cbe82603SBenny Halevy decode_sequence_maxsz + \ 851cbe82603SBenny Halevy decode_putfh_maxsz + \ 852cbe82603SBenny Halevy decode_layoutreturn_maxsz) 853fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 854fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 855fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 856fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 857fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 858fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 859fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 860fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8617d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8627d974794SBryan Schumaker encode_sequence_maxsz + \ 8637d974794SBryan Schumaker encode_test_stateid_maxsz) 8647d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8657d974794SBryan Schumaker decode_sequence_maxsz + \ 8667d974794SBryan Schumaker decode_test_stateid_maxsz) 8679aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8689aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8699aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8709aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8719aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8729aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8732449ea2eSAlexandros Batsakis 8742449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8752449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8762449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8772449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8782449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8792449ea2eSAlexandros Batsakis XDR_UNIT); 8802449ea2eSAlexandros Batsakis 8812449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8822449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8832449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8842449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8852449ea2eSAlexandros Batsakis XDR_UNIT); 886f1c097beSAndy Adamson 887f1c097beSAndy Adamson const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH + 888f1c097beSAndy Adamson compound_decode_hdr_maxsz + 889f1c097beSAndy Adamson decode_sequence_maxsz) * 890f1c097beSAndy Adamson XDR_UNIT); 891f1c097beSAndy Adamson EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead); 89299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8931da177e4SLinus Torvalds 894bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 895bca79478STrond Myklebust [NF4BAD] = 0, 896bca79478STrond Myklebust [NF4REG] = S_IFREG, 897bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 898bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 899bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 900bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 901bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 902bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 903bca79478STrond Myklebust [NF4ATTRDIR] = 0, 904bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 9051da177e4SLinus Torvalds }; 9061da177e4SLinus Torvalds 9071da177e4SLinus Torvalds struct compound_hdr { 9081da177e4SLinus Torvalds int32_t status; 9091da177e4SLinus Torvalds uint32_t nops; 910d017931cSAndy Adamson __be32 * nops_p; 9111da177e4SLinus Torvalds uint32_t taglen; 9121da177e4SLinus Torvalds char * tag; 9130c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 91466cc0429SBenny Halevy u32 minorversion; 9151da177e4SLinus Torvalds }; 9161da177e4SLinus Torvalds 91713c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 91813c65ce9SBenny Halevy { 91913c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 92013c65ce9SBenny Halevy BUG_ON(!p); 92113c65ce9SBenny Halevy return p; 92213c65ce9SBenny Halevy } 9231da177e4SLinus Torvalds 924cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 925cb17e556STrond Myklebust { 926cb17e556STrond Myklebust __be32 *p; 927cb17e556STrond Myklebust 928cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 929cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 930cb17e556STrond Myklebust } 931cb17e556STrond Myklebust 9321da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9331da177e4SLinus Torvalds { 9348687b63aSAl Viro __be32 *p; 9351da177e4SLinus Torvalds 9366fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 9371da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 9381da177e4SLinus Torvalds } 9391da177e4SLinus Torvalds 9404ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9414ade9821STrond Myklebust { 9424ade9821STrond Myklebust __be32 *p; 9434ade9821STrond Myklebust 9444ade9821STrond Myklebust p = reserve_space(xdr, 4); 9454ade9821STrond Myklebust *p = cpu_to_be32(n); 9464ade9821STrond Myklebust } 9474ade9821STrond Myklebust 948ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 949ff2eb681STrond Myklebust { 950ff2eb681STrond Myklebust __be32 *p; 951ff2eb681STrond Myklebust 952ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 953ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 954ff2eb681STrond Myklebust } 955ff2eb681STrond Myklebust 9564ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9574ade9821STrond Myklebust const struct nfs_seqid *seqid) 9584ade9821STrond Myklebust { 9594ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 9604ade9821STrond Myklebust } 9614ade9821STrond Myklebust 9620c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9630c4e8c18SBenny Halevy struct rpc_rqst *req, 9640c4e8c18SBenny Halevy struct compound_hdr *hdr) 9651da177e4SLinus Torvalds { 9668687b63aSAl Viro __be32 *p; 967a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9680c4e8c18SBenny Halevy 9690c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9700c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9710c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9720c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9731da177e4SLinus Torvalds 9747fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 9756fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9766fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 977e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 978d017931cSAndy Adamson hdr->nops_p = p; 97934558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 980d017931cSAndy Adamson } 981d017931cSAndy Adamson 982ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 983ab19b481STrond Myklebust uint32_t replen, 984ab19b481STrond Myklebust struct compound_hdr *hdr) 985ab19b481STrond Myklebust { 986ab19b481STrond Myklebust encode_uint32(xdr, op); 987ab19b481STrond Myklebust hdr->nops++; 988ab19b481STrond Myklebust hdr->replen += replen; 989ab19b481STrond Myklebust } 990ab19b481STrond Myklebust 991d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 992d017931cSAndy Adamson { 9937fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 994d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9951da177e4SLinus Torvalds } 9961da177e4SLinus Torvalds 997ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 998ea9d23f5STrond Myklebust { 9992d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 1000ea9d23f5STrond Myklebust } 1001ea9d23f5STrond Myklebust 10021da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 10031da177e4SLinus Torvalds { 1004cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 10051da177e4SLinus Torvalds } 10061da177e4SLinus Torvalds 1007aa9c2669SDavid Quigley static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, 1008aa9c2669SDavid Quigley const struct nfs4_label *label, 1009aa9c2669SDavid Quigley const struct nfs_server *server) 10101da177e4SLinus Torvalds { 10111da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 10121da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 10131da177e4SLinus Torvalds int owner_namelen = 0; 10141da177e4SLinus Torvalds int owner_grouplen = 0; 10158687b63aSAl Viro __be32 *p; 1016d7067b2dSTrond Myklebust unsigned i; 1017d7067b2dSTrond Myklebust uint32_t len = 0; 1018d7067b2dSTrond Myklebust uint32_t bmval_len; 1019d7067b2dSTrond Myklebust uint32_t bmval[3] = { 0 }; 10201da177e4SLinus Torvalds 10211da177e4SLinus Torvalds /* 10221da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 10231da177e4SLinus Torvalds * In the worst-case, this would be 1024a09df2caSDavid Quigley * 16(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 1025a09df2caSDavid Quigley * = 40 bytes, plus any contribution from variable-length fields 102623ec6965SJ. Bruce Fields * such as owner/group. 10271da177e4SLinus Torvalds */ 1028d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_SIZE) { 1029d7067b2dSTrond Myklebust bmval[0] |= FATTR4_WORD0_SIZE; 10301da177e4SLinus Torvalds len += 8; 1031d7067b2dSTrond Myklebust } 1032d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MODE) { 1033d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_MODE; 10341da177e4SLinus Torvalds len += 4; 1035d7067b2dSTrond Myklebust } 10361da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 1037e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10381da177e4SLinus Torvalds if (owner_namelen < 0) { 1039fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1040e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 10411da177e4SLinus Torvalds /* XXX */ 10421da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10431da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10441da177e4SLinus Torvalds /* goto out; */ 10451da177e4SLinus Torvalds } 1046d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER; 10471da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10481da177e4SLinus Torvalds } 10491da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1050e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10511da177e4SLinus Torvalds if (owner_grouplen < 0) { 1052fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1053e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 10541da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10551da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10561da177e4SLinus Torvalds /* goto out; */ 10571da177e4SLinus Torvalds } 1058d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER_GROUP; 10591da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10601da177e4SLinus Torvalds } 1061d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_ATIME_SET) { 1062d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 10631da177e4SLinus Torvalds len += 16; 1064d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_ATIME) { 1065d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 10661da177e4SLinus Torvalds len += 4; 1067d7067b2dSTrond Myklebust } 1068d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MTIME_SET) { 1069d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 10701da177e4SLinus Torvalds len += 16; 1071d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_MTIME) { 1072d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 10731da177e4SLinus Torvalds len += 4; 1074d7067b2dSTrond Myklebust } 1075b4a2cf76STrond Myklebust if (label) { 1076b4a2cf76STrond Myklebust len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2); 1077d7067b2dSTrond Myklebust bmval[2] |= FATTR4_WORD2_SECURITY_LABEL; 1078d7067b2dSTrond Myklebust } 1079d7067b2dSTrond Myklebust 1080d7067b2dSTrond Myklebust if (bmval[2] != 0) 1081b4a2cf76STrond Myklebust bmval_len = 3; 1082d7067b2dSTrond Myklebust else if (bmval[1] != 0) 1083d7067b2dSTrond Myklebust bmval_len = 2; 1084d7067b2dSTrond Myklebust else 1085d7067b2dSTrond Myklebust bmval_len = 1; 1086b4a2cf76STrond Myklebust 1087d7067b2dSTrond Myklebust p = reserve_space(xdr, 4 + (bmval_len << 2) + 4 + len); 10881da177e4SLinus Torvalds 1089b4a2cf76STrond Myklebust *p++ = cpu_to_be32(bmval_len); 1090d7067b2dSTrond Myklebust for (i = 0; i < bmval_len; i++) 1091d7067b2dSTrond Myklebust *p++ = cpu_to_be32(bmval[i]); 1092d7067b2dSTrond Myklebust *p++ = cpu_to_be32(len); 10931da177e4SLinus Torvalds 1094d7067b2dSTrond Myklebust if (bmval[0] & FATTR4_WORD0_SIZE) 1095b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 1096d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_MODE) 1097e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1098d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER) 1099811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 1100d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) 1101811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 1102d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) { 11031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 1104e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1105042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_atime.tv_sec); 1106d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 1107d7067b2dSTrond Myklebust } else 1108e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11091da177e4SLinus Torvalds } 1110d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) { 11111da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 1112e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1113042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_mtime.tv_sec); 1114e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 1115d7067b2dSTrond Myklebust } else 1116e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11171da177e4SLinus Torvalds } 1118d7067b2dSTrond Myklebust if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) { 1119aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->lfs); 1120aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->pi); 1121aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->len); 1122aa9c2669SDavid Quigley p = xdr_encode_opaque_fixed(p, label->label, label->len); 1123aa9c2669SDavid Quigley } 11241da177e4SLinus Torvalds 11251da177e4SLinus Torvalds /* out: */ 11261da177e4SLinus Torvalds } 11271da177e4SLinus Torvalds 1128cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 11291da177e4SLinus Torvalds { 1130475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1131475d4ba0STrond Myklebust encode_uint32(xdr, access); 11321da177e4SLinus Torvalds } 11331da177e4SLinus Torvalds 1134cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11351da177e4SLinus Torvalds { 1136ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11374ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1138ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 11391da177e4SLinus Torvalds } 11401da177e4SLinus Torvalds 11410b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11421da177e4SLinus Torvalds { 11438687b63aSAl Viro __be32 *p; 11441da177e4SLinus Torvalds 1145475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1146475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1147b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 114834558513SBenny Halevy *p = cpu_to_be32(args->count); 11491da177e4SLinus Torvalds } 11501da177e4SLinus Torvalds 1151cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11521da177e4SLinus Torvalds { 11538687b63aSAl Viro __be32 *p; 11541da177e4SLinus Torvalds 1155475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1156475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11571da177e4SLinus Torvalds 11581da177e4SLinus Torvalds switch (create->ftype) { 11591da177e4SLinus Torvalds case NF4LNK: 116013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 116134558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 116294a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11631da177e4SLinus Torvalds break; 11641da177e4SLinus Torvalds 11651da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 116613c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1167e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 116834558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11691da177e4SLinus Torvalds break; 11701da177e4SLinus Torvalds 11711da177e4SLinus Torvalds default: 11721da177e4SLinus Torvalds break; 11731da177e4SLinus Torvalds } 11741da177e4SLinus Torvalds 1175811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1176aa9c2669SDavid Quigley encode_attrs(xdr, create->attrs, create->label, create->server); 11771da177e4SLinus Torvalds } 11781da177e4SLinus Torvalds 1179cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11801da177e4SLinus Torvalds { 11818687b63aSAl Viro __be32 *p; 11821da177e4SLinus Torvalds 1183475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1184475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1185e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 118634558513SBenny Halevy *p = cpu_to_be32(bitmap); 11871da177e4SLinus Torvalds } 11881da177e4SLinus Torvalds 1189cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11901da177e4SLinus Torvalds { 11918687b63aSAl Viro __be32 *p; 11921da177e4SLinus Torvalds 1193475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1194475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1195e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1196e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 119734558513SBenny Halevy *p = cpu_to_be32(bm1); 11981da177e4SLinus Torvalds } 11991da177e4SLinus Torvalds 1200dae100c2SFred Isaman static void 1201dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1202dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1203dae100c2SFred Isaman struct compound_hdr *hdr) 1204dae100c2SFred Isaman { 1205dae100c2SFred Isaman __be32 *p; 1206dae100c2SFred Isaman 1207ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1208dae100c2SFred Isaman if (bm2) { 1209dae100c2SFred Isaman p = reserve_space(xdr, 16); 1210dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1211dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1212dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1213dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1214dae100c2SFred Isaman } else if (bm1) { 1215dae100c2SFred Isaman p = reserve_space(xdr, 12); 1216dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1217dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1218dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1219dae100c2SFred Isaman } else { 1220dae100c2SFred Isaman p = reserve_space(xdr, 8); 1221dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1222dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1223dae100c2SFred Isaman } 1224dae100c2SFred Isaman } 1225dae100c2SFred Isaman 1226cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12271da177e4SLinus Torvalds { 1228a09df2caSDavid Quigley encode_getattr_three(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1229a09df2caSDavid Quigley bitmask[1] & nfs4_fattr_bitmap[1], 1230a09df2caSDavid Quigley bitmask[2] & nfs4_fattr_bitmap[2], 1231a09df2caSDavid Quigley hdr); 12321da177e4SLinus Torvalds } 12331da177e4SLinus Torvalds 123488034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 12351549210fSTrond Myklebust const u32 *open_bitmap, 123688034c3dSAndy Adamson struct compound_hdr *hdr) 123788034c3dSAndy Adamson { 123888034c3dSAndy Adamson encode_getattr_three(xdr, 12391549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12401549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12411549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 124288034c3dSAndy Adamson hdr); 124388034c3dSAndy Adamson } 124488034c3dSAndy Adamson 1245cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12461da177e4SLinus Torvalds { 1247dae100c2SFred Isaman encode_getattr_three(xdr, 1248dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1249dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1250dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1251dae100c2SFred Isaman hdr); 12521da177e4SLinus Torvalds } 12531da177e4SLinus Torvalds 1254cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1255830b8e33SManoj Naik { 1256cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1257cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1258830b8e33SManoj Naik } 1259830b8e33SManoj Naik 1260cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12611da177e4SLinus Torvalds { 1262ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12631da177e4SLinus Torvalds } 12641da177e4SLinus Torvalds 1265cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12661da177e4SLinus Torvalds { 1267ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12686fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12691da177e4SLinus Torvalds } 12701da177e4SLinus Torvalds 1271911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1272911d1aafSTrond Myklebust { 1273f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1274911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1275911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1276911d1aafSTrond Myklebust } 1277911d1aafSTrond Myklebust 1278911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1279911d1aafSTrond Myklebust { 1280911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1281911d1aafSTrond Myklebust return ~(uint64_t)0; 1282911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1283911d1aafSTrond Myklebust } 1284911d1aafSTrond Myklebust 1285daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1286daccbdedSTrond Myklebust { 1287daccbdedSTrond Myklebust __be32 *p; 1288daccbdedSTrond Myklebust 1289d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1290daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1291d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1292daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1293d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1294daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1295daccbdedSTrond Myklebust } 1296daccbdedSTrond Myklebust 12971da177e4SLinus Torvalds /* 12981da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12991da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 13001da177e4SLinus Torvalds */ 1301cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 13021da177e4SLinus Torvalds { 13038687b63aSAl Viro __be32 *p; 13041da177e4SLinus Torvalds 1305475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1306475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1307e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1308e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1309b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1310b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 131134558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1312911d1aafSTrond Myklebust if (args->new_lock_owner){ 13134ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1314ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->open_stateid); 13154ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1316daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13171da177e4SLinus Torvalds } 13181da177e4SLinus Torvalds else { 1319ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->lock_stateid); 13204ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 13211da177e4SLinus Torvalds } 13221da177e4SLinus Torvalds } 13231da177e4SLinus Torvalds 1324cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 13251da177e4SLinus Torvalds { 13268687b63aSAl Viro __be32 *p; 13271da177e4SLinus Torvalds 1328475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1329475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1330e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1331b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1332b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1333daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13341da177e4SLinus Torvalds } 13351da177e4SLinus Torvalds 1336cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13371da177e4SLinus Torvalds { 13388687b63aSAl Viro __be32 *p; 13391da177e4SLinus Torvalds 1340475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1341475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13424ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1343ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 1344ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1345b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 134634558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13471da177e4SLinus Torvalds } 13481da177e4SLinus Torvalds 1349d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1350d3c7b7ccSTrond Myklebust { 1351ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1352d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1353d3c7b7ccSTrond Myklebust } 1354d3c7b7ccSTrond Myklebust 1355cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13561da177e4SLinus Torvalds { 1357ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13586fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13591da177e4SLinus Torvalds } 13601da177e4SLinus Torvalds 1361dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13621da177e4SLinus Torvalds { 13638687b63aSAl Viro __be32 *p; 13641da177e4SLinus Torvalds 136513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1366dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13671da177e4SLinus Torvalds case FMODE_READ: 1368e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13691da177e4SLinus Torvalds break; 13701da177e4SLinus Torvalds case FMODE_WRITE: 1371e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13721da177e4SLinus Torvalds break; 13731da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1374e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13751da177e4SLinus Torvalds break; 13761da177e4SLinus Torvalds default: 1377e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13781da177e4SLinus Torvalds } 137934558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13801da177e4SLinus Torvalds } 13811da177e4SLinus Torvalds 13821da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13831da177e4SLinus Torvalds { 13848687b63aSAl Viro __be32 *p; 13851da177e4SLinus Torvalds /* 13861da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13871da177e4SLinus Torvalds * owner 4 = 32 13881da177e4SLinus Torvalds */ 13894ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1390dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 139195b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1392b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 139395b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 139493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1395d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 139695b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 139795b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13981da177e4SLinus Torvalds } 13991da177e4SLinus Torvalds 14001da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14011da177e4SLinus Torvalds { 1402549b19ccSTrond Myklebust struct iattr dummy; 14038687b63aSAl Viro __be32 *p; 14041da177e4SLinus Torvalds 140513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 1406549b19ccSTrond Myklebust switch(arg->createmode) { 1407549b19ccSTrond Myklebust case NFS4_CREATE_UNCHECKED: 140834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 1409aa9c2669SDavid Quigley encode_attrs(xdr, arg->u.attrs, arg->label, arg->server); 14101da177e4SLinus Torvalds break; 1411549b19ccSTrond Myklebust case NFS4_CREATE_GUARDED: 14124882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 1413aa9c2669SDavid Quigley encode_attrs(xdr, arg->u.attrs, arg->label, arg->server); 1414549b19ccSTrond Myklebust break; 1415549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE: 1416549b19ccSTrond Myklebust *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 1417549b19ccSTrond Myklebust encode_nfs4_verifier(xdr, &arg->u.verifier); 1418549b19ccSTrond Myklebust break; 1419549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE4_1: 14204882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 14214882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 14224882ef72SAlexandros Batsakis dummy.ia_valid = 0; 1423aa9c2669SDavid Quigley encode_attrs(xdr, &dummy, arg->label, arg->server); 14244882ef72SAlexandros Batsakis } 14254882ef72SAlexandros Batsakis } 14261da177e4SLinus Torvalds 14271da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14281da177e4SLinus Torvalds { 14298687b63aSAl Viro __be32 *p; 14301da177e4SLinus Torvalds 143113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14321da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14331da177e4SLinus Torvalds case 0: 143434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14351da177e4SLinus Torvalds break; 14361da177e4SLinus Torvalds default: 143734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14381da177e4SLinus Torvalds encode_createmode(xdr, arg); 14391da177e4SLinus Torvalds } 14401da177e4SLinus Torvalds } 14411da177e4SLinus Torvalds 1442bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14431da177e4SLinus Torvalds { 14448687b63aSAl Viro __be32 *p; 14451da177e4SLinus Torvalds 144613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14471da177e4SLinus Torvalds switch (delegation_type) { 14481da177e4SLinus Torvalds case 0: 144934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14501da177e4SLinus Torvalds break; 14511da177e4SLinus Torvalds case FMODE_READ: 145234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14531da177e4SLinus Torvalds break; 14541da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 145534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14561da177e4SLinus Torvalds break; 14571da177e4SLinus Torvalds default: 14581da177e4SLinus Torvalds BUG(); 14591da177e4SLinus Torvalds } 14601da177e4SLinus Torvalds } 14611da177e4SLinus Torvalds 14621da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14631da177e4SLinus Torvalds { 14648687b63aSAl Viro __be32 *p; 14651da177e4SLinus Torvalds 146613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14681da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14691da177e4SLinus Torvalds } 14701da177e4SLinus Torvalds 1471bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14721da177e4SLinus Torvalds { 14738687b63aSAl Viro __be32 *p; 14741da177e4SLinus Torvalds 147513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14771da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14781da177e4SLinus Torvalds } 14791da177e4SLinus Torvalds 14801da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14811da177e4SLinus Torvalds { 14828687b63aSAl Viro __be32 *p; 14831da177e4SLinus Torvalds 1484ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1485ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1486ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14871da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14881da177e4SLinus Torvalds } 14891da177e4SLinus Torvalds 1490d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1491d9fc6619STrond Myklebust { 1492d9fc6619STrond Myklebust __be32 *p; 1493d9fc6619STrond Myklebust 1494d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1495d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1496d9fc6619STrond Myklebust } 1497d9fc6619STrond Myklebust 1498d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1499d9fc6619STrond Myklebust { 1500d9fc6619STrond Myklebust __be32 *p; 1501d9fc6619STrond Myklebust 1502d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1503d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1504d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1505d9fc6619STrond Myklebust } 1506d9fc6619STrond Myklebust 1507cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 15081da177e4SLinus Torvalds { 1509ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 15101da177e4SLinus Torvalds encode_openhdr(xdr, arg); 15111da177e4SLinus Torvalds encode_opentype(xdr, arg); 15121da177e4SLinus Torvalds switch (arg->claim) { 15131da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 15141da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 15151da177e4SLinus Torvalds break; 15161da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 15171da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 15181da177e4SLinus Torvalds break; 15191da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 15201da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 15211da177e4SLinus Torvalds break; 1522d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1523d9fc6619STrond Myklebust encode_claim_fh(xdr); 1524d9fc6619STrond Myklebust break; 1525d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1526d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1527d9fc6619STrond Myklebust break; 15281da177e4SLinus Torvalds default: 15291da177e4SLinus Torvalds BUG(); 15301da177e4SLinus Torvalds } 15311da177e4SLinus Torvalds } 15321da177e4SLinus Torvalds 1533cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15341da177e4SLinus Torvalds { 1535ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1536ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15374ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15381da177e4SLinus Torvalds } 15391da177e4SLinus Torvalds 1540cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15411da177e4SLinus Torvalds { 1542ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1543ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15444ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1545dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 15461da177e4SLinus Torvalds } 15471da177e4SLinus Torvalds 1548cf8cdbe5SAndy Adamson static void 1549d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15501da177e4SLinus Torvalds { 1551ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15526fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15531da177e4SLinus Torvalds } 15541da177e4SLinus Torvalds 1555cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15561da177e4SLinus Torvalds { 1557ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15581da177e4SLinus Torvalds } 15591da177e4SLinus Torvalds 1560cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15611da177e4SLinus Torvalds { 15628687b63aSAl Viro __be32 *p; 15631da177e4SLinus Torvalds 1564ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15659b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 15661da177e4SLinus Torvalds 156713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1568b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 156934558513SBenny Halevy *p = cpu_to_be32(args->count); 15701da177e4SLinus Torvalds } 15711da177e4SLinus Torvalds 1572cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15731da177e4SLinus Torvalds { 1574aa9c2669SDavid Quigley uint32_t attrs[3] = { 157528331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 157628331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 157728331a46STrond Myklebust }; 15786f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1579cd93710eSChuck Lever __be32 *p, verf[2]; 1580d204c5d2STrond Myklebust uint32_t attrlen = 0; 1581d204c5d2STrond Myklebust unsigned int i; 15821da177e4SLinus Torvalds 158382f2e547SBryan Schumaker if (readdir->plus) { 158482f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 158528331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 158682f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 158782f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 158882f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 158982f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 1590d204c5d2STrond Myklebust attrs[2] |= FATTR4_WORD2_SECURITY_LABEL; 15916f7a35bdSTrond Myklebust dircount >>= 1; 159282f2e547SBryan Schumaker } 159328331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 159428331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 159528331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 1596d204c5d2STrond Myklebust for (i = 0; i < ARRAY_SIZE(attrs); i++) { 1597d204c5d2STrond Myklebust attrs[i] &= readdir->bitmask[i]; 1598d204c5d2STrond Myklebust if (attrs[i] != 0) 1599d204c5d2STrond Myklebust attrlen = i+1; 1600d204c5d2STrond Myklebust } 16016f7a35bdSTrond Myklebust 1602475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1603ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1604cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1605d204c5d2STrond Myklebust p = reserve_space(xdr, 12 + (attrlen << 2)); 16066f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 16076f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 1608d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrlen); 1609d204c5d2STrond Myklebust for (i = 0; i < attrlen; i++) 1610d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrs[i]); 1611cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 1612aa9c2669SDavid Quigley 1613aa9c2669SDavid Quigley dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n", 161444109241SFred Isaman __func__, 1615eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1616cd93710eSChuck Lever verf[0], verf[1], 1617eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1618aa9c2669SDavid Quigley attrs[1] & readdir->bitmask[1], 1619aa9c2669SDavid Quigley attrs[2] & readdir->bitmask[2]); 16201da177e4SLinus Torvalds } 16211da177e4SLinus Torvalds 1622cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16231da177e4SLinus Torvalds { 1624ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 16251da177e4SLinus Torvalds } 16261da177e4SLinus Torvalds 1627cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16281da177e4SLinus Torvalds { 1629ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 16306fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16311da177e4SLinus Torvalds } 16321da177e4SLinus Torvalds 1633cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16341da177e4SLinus Torvalds { 1635ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1636811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1637811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 16381da177e4SLinus Torvalds } 16391da177e4SLinus Torvalds 1640bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1641bb4dae5eSChuck Lever struct compound_hdr *hdr) 16421da177e4SLinus Torvalds { 1643475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1644ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16451da177e4SLinus Torvalds } 16461da177e4SLinus Torvalds 1647cf8cdbe5SAndy Adamson static void 1648d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 164956ae19f3STrond Myklebust { 1650ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 165156ae19f3STrond Myklebust } 165256ae19f3STrond Myklebust 16539f06c719SChuck Lever static void 1654d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 165523ec6965SJ. Bruce Fields { 16568687b63aSAl Viro __be32 *p; 165723ec6965SJ. Bruce Fields 1658ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1659ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 166013c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1661e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 166234558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 166313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 166434558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 166523ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 166623ec6965SJ. Bruce Fields } 166723ec6965SJ. Bruce Fields 1668cf8cdbe5SAndy Adamson static void 1669d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16701da177e4SLinus Torvalds { 1671ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16721da177e4SLinus Torvalds } 16731da177e4SLinus Torvalds 1674cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16751da177e4SLinus Torvalds { 1676ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1677ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1678aa9c2669SDavid Quigley encode_attrs(xdr, arg->iap, arg->label, server); 16791da177e4SLinus Torvalds } 16801da177e4SLinus Torvalds 1681cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16821da177e4SLinus Torvalds { 16838687b63aSAl Viro __be32 *p; 16841da177e4SLinus Torvalds 168570019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1686cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16871da177e4SLinus Torvalds 16881da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 168913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 169034558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16911da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16921da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 169313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 169434558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 16951da177e4SLinus Torvalds } 16961da177e4SLinus Torvalds 1697bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16981da177e4SLinus Torvalds { 1699475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1700475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1701ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1702cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 17031da177e4SLinus Torvalds } 17041da177e4SLinus Torvalds 1705cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 17061da177e4SLinus Torvalds { 17078687b63aSAl Viro __be32 *p; 17081da177e4SLinus Torvalds 1709ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 17109b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 17111da177e4SLinus Torvalds 171213c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1713b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1714e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 171534558513SBenny Halevy *p = cpu_to_be32(args->count); 17161da177e4SLinus Torvalds 17171da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 17181da177e4SLinus Torvalds } 17191da177e4SLinus Torvalds 1720cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17211da177e4SLinus Torvalds { 1722ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1723ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 17241da177e4SLinus Torvalds } 17259b7b9fccSAndy Adamson 17265a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17275a5ea0d4SBryan Schumaker { 1728ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 17296fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 17305a5ea0d4SBryan Schumaker } 17315a5ea0d4SBryan Schumaker 173299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17339b7b9fccSAndy Adamson /* NFSv4.1 operations */ 17347c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 17357c44f1aeSWeston Andros Adamson struct nfs4_session *session, 17367c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 17377c44f1aeSWeston Andros Adamson { 17387c44f1aeSWeston Andros Adamson __be32 *p; 17397c44f1aeSWeston Andros Adamson 17407c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17417c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 17427c44f1aeSWeston Andros Adamson encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17437c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 17447c44f1aeSWeston Andros Adamson *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH); 17457c44f1aeSWeston Andros Adamson *p = 0; /* use_conn_in_rdma_mode = False */ 17467c44f1aeSWeston Andros Adamson } 17477c44f1aeSWeston Andros Adamson 17482031cd1aSWeston Andros Adamson static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 17492031cd1aSWeston Andros Adamson { 17502031cd1aSWeston Andros Adamson unsigned int i; 17512031cd1aSWeston Andros Adamson encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS); 17522031cd1aSWeston Andros Adamson for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++) 17532031cd1aSWeston Andros Adamson encode_uint32(xdr, op_map->u.words[i]); 17542031cd1aSWeston Andros Adamson } 17552031cd1aSWeston Andros Adamson 175699fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 175799fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 175899fe60d0SBenny Halevy struct compound_hdr *hdr) 175999fe60d0SBenny Halevy { 176099fe60d0SBenny Halevy __be32 *p; 1761d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1762db8ac8baSWeston Andros Adamson int len = 0; 176399fe60d0SBenny Halevy 176470019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1765cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 176699fe60d0SBenny Halevy 176799fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 176899fe60d0SBenny Halevy 17692031cd1aSWeston Andros Adamson encode_uint32(xdr, args->flags); 17702031cd1aSWeston Andros Adamson encode_uint32(xdr, args->state_protect.how); 17712031cd1aSWeston Andros Adamson 17722031cd1aSWeston Andros Adamson switch (args->state_protect.how) { 17732031cd1aSWeston Andros Adamson case SP4_NONE: 17742031cd1aSWeston Andros Adamson break; 17752031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 17762031cd1aSWeston Andros Adamson encode_op_map(xdr, &args->state_protect.enforce); 17772031cd1aSWeston Andros Adamson encode_op_map(xdr, &args->state_protect.allow); 17782031cd1aSWeston Andros Adamson break; 17792031cd1aSWeston Andros Adamson default: 17802031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 17812031cd1aSWeston Andros Adamson break; 17822031cd1aSWeston Andros Adamson } 1783db8ac8baSWeston Andros Adamson 1784db8ac8baSWeston Andros Adamson if (send_implementation_id && 1785db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1786db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1787d751f748SJim Rees <= sizeof(impl_name) + 1) 1788db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1789db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1790db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1791db8ac8baSWeston Andros Adamson 1792db8ac8baSWeston Andros Adamson if (len > 0) { 17932031cd1aSWeston Andros Adamson encode_uint32(xdr, 1); /* implementation id array length=1 */ 1794db8ac8baSWeston Andros Adamson 1795db8ac8baSWeston Andros Adamson encode_string(xdr, 1796db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1797db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1798db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1799db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1800db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1801db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1802db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1803db8ac8baSWeston Andros Adamson } else 18042031cd1aSWeston Andros Adamson encode_uint32(xdr, 0); /* implementation id array length=0 */ 180599fe60d0SBenny Halevy } 1806fc931582SAndy Adamson 1807fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1808fc931582SAndy Adamson struct nfs41_create_session_args *args, 1809fc931582SAndy Adamson struct compound_hdr *hdr) 1810fc931582SAndy Adamson { 1811fc931582SAndy Adamson __be32 *p; 1812fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1813fc931582SAndy Adamson uint32_t len; 1814fc931582SAndy Adamson struct nfs_client *clp = args->client; 1815f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 18168e0d46e1SMike Sager u32 max_resp_sz_cached; 18178e0d46e1SMike Sager 18188e0d46e1SMike Sager /* 18198e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 18208e0d46e1SMike Sager * 2 is the verifier. 18218e0d46e1SMike Sager */ 18228e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 18238e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1824fc931582SAndy Adamson 1825fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1826fc931582SAndy Adamson clp->cl_ipaddr); 182742edd698SBenny Halevy 1828475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 1829475d4ba0STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12); 1830114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1831e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1832e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1833fc931582SAndy Adamson 1834fc931582SAndy Adamson /* Fore Channel */ 1835c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1836e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1837e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18388e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1839e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1840e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1841e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1842fc931582SAndy Adamson 1843fc931582SAndy Adamson /* Back Channel */ 1844c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1845e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1846e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1847e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1848e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1849e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1850e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1851fc931582SAndy Adamson 1852e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1853e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1855fc931582SAndy Adamson 1856fc931582SAndy Adamson /* authsys_parms rfc1831 */ 185717f26b12STrond Myklebust *p++ = cpu_to_be32(nn->boot_time.tv_nsec); /* stamp */ 1858811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1859e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1860e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 186134558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1862fc931582SAndy Adamson } 18630f3e66c6SAndy Adamson 18640f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18650f3e66c6SAndy Adamson struct nfs4_session *session, 18660f3e66c6SAndy Adamson struct compound_hdr *hdr) 18670f3e66c6SAndy Adamson { 1868475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1869475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18700f3e66c6SAndy Adamson } 187118019753SRicardo Labiaga 187266245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 187366245539STrond Myklebust uint64_t clientid, 187466245539STrond Myklebust struct compound_hdr *hdr) 187566245539STrond Myklebust { 187666245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 187766245539STrond Myklebust encode_uint64(xdr, clientid); 187866245539STrond Myklebust } 187966245539STrond Myklebust 188018019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 188118019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 188218019753SRicardo Labiaga struct compound_hdr *hdr) 188318019753SRicardo Labiaga { 1884475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1885475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 188618019753SRicardo Labiaga } 188799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 188899fe60d0SBenny Halevy 18899b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18909b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18919b7b9fccSAndy Adamson struct compound_hdr *hdr) 18929b7b9fccSAndy Adamson { 18939b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18942b2fa717STrond Myklebust struct nfs4_session *session; 1895fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 18962b2fa717STrond Myklebust struct nfs4_slot *slot = args->sa_slot; 1897fc01cea9SAndy Adamson __be32 *p; 18989b7b9fccSAndy Adamson 18992b2fa717STrond Myklebust tp = slot->table; 19002b2fa717STrond Myklebust session = tp->session; 19013bd2384aSChuck Lever if (!session) 19023bd2384aSChuck Lever return; 1903fc01cea9SAndy Adamson 1904475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1905fc01cea9SAndy Adamson 1906fc01cea9SAndy Adamson /* 1907fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1908fc01cea9SAndy Adamson */ 1909fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1910fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1911fc01cea9SAndy Adamson __func__, 1912fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1913fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1914fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1915fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 19162b2fa717STrond Myklebust slot->seq_nr, slot->slot_nr, 1917fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1918475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 191993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1920e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 19212b2fa717STrond Myklebust *p++ = cpu_to_be32(slot->slot_nr); 1922e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 192334558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19249b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19259b7b9fccSAndy Adamson } 19269b7b9fccSAndy Adamson 1927b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1928b1f69b75SAndy Adamson static void 19297f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 19307f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 19317f11d8d3SAndy Adamson struct compound_hdr *hdr) 19327f11d8d3SAndy Adamson { 19337f11d8d3SAndy Adamson __be32 *p; 19347f11d8d3SAndy Adamson nfs4_verifier dummy = { 19357f11d8d3SAndy Adamson .data = "dummmmmy", 19367f11d8d3SAndy Adamson }; 19377f11d8d3SAndy Adamson 1938475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr); 1939475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 19407f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 19417f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 19427f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 19437f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 19447f11d8d3SAndy Adamson } 19457f11d8d3SAndy Adamson 19467f11d8d3SAndy Adamson static void 1947b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1948b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1949b1f69b75SAndy Adamson struct compound_hdr *hdr) 1950b1f69b75SAndy Adamson { 1951b1f69b75SAndy Adamson __be32 *p; 1952b1f69b75SAndy Adamson 1953475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 1954475d4ba0STrond Myklebust p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE); 1955b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1956b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1957b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1958f1c097beSAndy Adamson *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */ 1959b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1960b1f69b75SAndy Adamson } 1961b1f69b75SAndy Adamson 1962b1f69b75SAndy Adamson static void 1963b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1964b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1965b1f69b75SAndy Adamson struct compound_hdr *hdr) 1966b1f69b75SAndy Adamson { 1967b1f69b75SAndy Adamson __be32 *p; 1968b1f69b75SAndy Adamson 1969475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1970475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1971b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1972b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1973b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1974b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1975b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1976b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1977ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1978475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1979b1f69b75SAndy Adamson 1980b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1981b1f69b75SAndy Adamson __func__, 1982b1f69b75SAndy Adamson args->type, 1983b1f69b75SAndy Adamson args->range.iomode, 1984b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1985b1f69b75SAndy Adamson (unsigned long)args->range.length, 1986b1f69b75SAndy Adamson args->maxcount); 1987b1f69b75SAndy Adamson } 1988863a3c6cSAndy Adamson 1989863a3c6cSAndy Adamson static int 1990863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1991ac7db726SBenny Halevy struct inode *inode, 1992863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1993863a3c6cSAndy Adamson struct compound_hdr *hdr) 1994863a3c6cSAndy Adamson { 1995863a3c6cSAndy Adamson __be32 *p; 1996863a3c6cSAndy Adamson 1997863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1998863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1999863a3c6cSAndy Adamson 2000475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 2001475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 2002863a3c6cSAndy Adamson /* Only whole file layouts */ 2003863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 20043557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 2005ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 2006ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 2007ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 2008863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 2009863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 2010863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 2011863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 2012ac7db726SBenny Halevy 2013ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 2014ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 2015ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 2016475d4ba0STrond Myklebust else 2017475d4ba0STrond Myklebust encode_uint32(xdr, 0); /* no layout-type payload */ 2018863a3c6cSAndy Adamson 2019863a3c6cSAndy Adamson return 0; 2020863a3c6cSAndy Adamson } 2021cbe82603SBenny Halevy 2022cbe82603SBenny Halevy static void 2023cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2024cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2025cbe82603SBenny Halevy struct compound_hdr *hdr) 2026cbe82603SBenny Halevy { 2027cbe82603SBenny Halevy __be32 *p; 2028cbe82603SBenny Halevy 2029475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 2030475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 2031cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2032cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 2033cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 2034cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2035ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 2036cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 2037cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 2038cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2039ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 2040cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 204104a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 204204a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 204304a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 2044475d4ba0STrond Myklebust } else 2045475d4ba0STrond Myklebust encode_uint32(xdr, 0); 2046cbe82603SBenny Halevy } 2047fca78d6dSBryan Schumaker 2048fca78d6dSBryan Schumaker static int 2049fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2050fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2051fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2052fca78d6dSBryan Schumaker { 2053475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 2054475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2055fca78d6dSBryan Schumaker return 0; 2056fca78d6dSBryan Schumaker } 20577d974794SBryan Schumaker 20587d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20597d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20607d974794SBryan Schumaker struct compound_hdr *hdr) 20617d974794SBryan Schumaker { 2062475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2063475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2064ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20657d974794SBryan Schumaker } 20669aeda35fSBryan Schumaker 20679aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20689aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20699aeda35fSBryan Schumaker struct compound_hdr *hdr) 20709aeda35fSBryan Schumaker { 2071ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 20727c1d5faeSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 20739aeda35fSBryan Schumaker } 2074b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2075b1f69b75SAndy Adamson 20761da177e4SLinus Torvalds /* 20771da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20781da177e4SLinus Torvalds */ 20791da177e4SLinus Torvalds 208066cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 208166cc0429SBenny Halevy { 208266cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 20833bd2384aSChuck Lever struct nfs4_session *session = args->sa_slot->table->session; 20843bd2384aSChuck Lever if (session) 20853bd2384aSChuck Lever return session->clp->cl_mvops->minor_version; 208666cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 208766cc0429SBenny Halevy return 0; 208866cc0429SBenny Halevy } 208966cc0429SBenny Halevy 20901da177e4SLinus Torvalds /* 20911da177e4SLinus Torvalds * Encode an ACCESS request 20921da177e4SLinus Torvalds */ 20939f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20949f06c719SChuck Lever const struct nfs4_accessargs *args) 20951da177e4SLinus Torvalds { 20961da177e4SLinus Torvalds struct compound_hdr hdr = { 209766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20981da177e4SLinus Torvalds }; 20991da177e4SLinus Torvalds 21009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21039f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21049f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2105d017931cSAndy Adamson encode_nops(&hdr); 21061da177e4SLinus Torvalds } 21071da177e4SLinus Torvalds 21081da177e4SLinus Torvalds /* 21091da177e4SLinus Torvalds * Encode LOOKUP request 21101da177e4SLinus Torvalds */ 21119f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 21129f06c719SChuck Lever const struct nfs4_lookup_arg *args) 21131da177e4SLinus Torvalds { 21141da177e4SLinus Torvalds struct compound_hdr hdr = { 211566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21161da177e4SLinus Torvalds }; 21171da177e4SLinus Torvalds 21189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21209f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21219f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21229f06c719SChuck Lever encode_getfh(xdr, &hdr); 21239f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2124d017931cSAndy Adamson encode_nops(&hdr); 21251da177e4SLinus Torvalds } 21261da177e4SLinus Torvalds 21271da177e4SLinus Torvalds /* 21281da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21291da177e4SLinus Torvalds */ 21309f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21319f06c719SChuck Lever struct xdr_stream *xdr, 21329f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21331da177e4SLinus Torvalds { 21341da177e4SLinus Torvalds struct compound_hdr hdr = { 213566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21361da177e4SLinus Torvalds }; 21371da177e4SLinus Torvalds 21389f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21399f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21409f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21419f06c719SChuck Lever encode_getfh(xdr, &hdr); 21429f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2143d017931cSAndy Adamson encode_nops(&hdr); 21441da177e4SLinus Torvalds } 21451da177e4SLinus Torvalds 21461da177e4SLinus Torvalds /* 21471da177e4SLinus Torvalds * Encode REMOVE request 21481da177e4SLinus Torvalds */ 21499f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 21509f06c719SChuck Lever const struct nfs_removeargs *args) 21511da177e4SLinus Torvalds { 21521da177e4SLinus Torvalds struct compound_hdr hdr = { 215366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21541da177e4SLinus Torvalds }; 21551da177e4SLinus Torvalds 21569f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21579f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21589f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21599f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2160d017931cSAndy Adamson encode_nops(&hdr); 21611da177e4SLinus Torvalds } 21621da177e4SLinus Torvalds 21631da177e4SLinus Torvalds /* 21641da177e4SLinus Torvalds * Encode RENAME request 21651da177e4SLinus Torvalds */ 21669f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21679f06c719SChuck Lever const struct nfs_renameargs *args) 21681da177e4SLinus Torvalds { 21691da177e4SLinus Torvalds struct compound_hdr hdr = { 217066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21711da177e4SLinus Torvalds }; 21721da177e4SLinus Torvalds 21739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21749f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21759f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21769f06c719SChuck Lever encode_savefh(xdr, &hdr); 21779f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21789f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2179d017931cSAndy Adamson encode_nops(&hdr); 21801da177e4SLinus Torvalds } 21811da177e4SLinus Torvalds 21821da177e4SLinus Torvalds /* 21831da177e4SLinus Torvalds * Encode LINK request 21841da177e4SLinus Torvalds */ 21859f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21869f06c719SChuck Lever const struct nfs4_link_arg *args) 21871da177e4SLinus Torvalds { 21881da177e4SLinus Torvalds struct compound_hdr hdr = { 218966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21901da177e4SLinus Torvalds }; 21911da177e4SLinus Torvalds 21929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21939f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21949f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21959f06c719SChuck Lever encode_savefh(xdr, &hdr); 21969f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21979f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21989f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21999f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2200d017931cSAndy Adamson encode_nops(&hdr); 22011da177e4SLinus Torvalds } 22021da177e4SLinus Torvalds 22031da177e4SLinus Torvalds /* 22041da177e4SLinus Torvalds * Encode CREATE request 22051da177e4SLinus Torvalds */ 22069f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 22079f06c719SChuck Lever const struct nfs4_create_arg *args) 22081da177e4SLinus Torvalds { 22091da177e4SLinus Torvalds struct compound_hdr hdr = { 221066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22111da177e4SLinus Torvalds }; 22121da177e4SLinus Torvalds 22139f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22149f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22159f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22169f06c719SChuck Lever encode_create(xdr, args, &hdr); 22179f06c719SChuck Lever encode_getfh(xdr, &hdr); 22189f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2219d017931cSAndy Adamson encode_nops(&hdr); 22201da177e4SLinus Torvalds } 22211da177e4SLinus Torvalds 22221da177e4SLinus Torvalds /* 22231da177e4SLinus Torvalds * Encode SYMLINK request 22241da177e4SLinus Torvalds */ 22259f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22269f06c719SChuck Lever const struct nfs4_create_arg *args) 22271da177e4SLinus Torvalds { 22289f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22291da177e4SLinus Torvalds } 22301da177e4SLinus Torvalds 22311da177e4SLinus Torvalds /* 22321da177e4SLinus Torvalds * Encode GETATTR request 22331da177e4SLinus Torvalds */ 22349f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22359f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22361da177e4SLinus Torvalds { 22371da177e4SLinus Torvalds struct compound_hdr hdr = { 223866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22391da177e4SLinus Torvalds }; 22401da177e4SLinus Torvalds 22419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22449f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2245d017931cSAndy Adamson encode_nops(&hdr); 22461da177e4SLinus Torvalds } 22471da177e4SLinus Torvalds 22481da177e4SLinus Torvalds /* 22491da177e4SLinus Torvalds * Encode a CLOSE request 22501da177e4SLinus Torvalds */ 22519f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 22529f06c719SChuck Lever struct nfs_closeargs *args) 22531da177e4SLinus Torvalds { 22541da177e4SLinus Torvalds struct compound_hdr hdr = { 225566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22561da177e4SLinus Torvalds }; 22571da177e4SLinus Torvalds 22589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22609f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22619f06c719SChuck Lever encode_close(xdr, args, &hdr); 22629f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2263d017931cSAndy Adamson encode_nops(&hdr); 22641da177e4SLinus Torvalds } 22651da177e4SLinus Torvalds 22661da177e4SLinus Torvalds /* 22671da177e4SLinus Torvalds * Encode an OPEN request 22681da177e4SLinus Torvalds */ 22699f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22709f06c719SChuck Lever struct nfs_openargs *args) 22711da177e4SLinus Torvalds { 22721da177e4SLinus Torvalds struct compound_hdr hdr = { 227366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22741da177e4SLinus Torvalds }; 22751da177e4SLinus Torvalds 22769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22779f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22789f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22799f06c719SChuck Lever encode_open(xdr, args, &hdr); 22809f06c719SChuck Lever encode_getfh(xdr, &hdr); 2281ae2bb032SWeston Andros Adamson if (args->access) 22826168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22831549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2284d017931cSAndy Adamson encode_nops(&hdr); 22851da177e4SLinus Torvalds } 22861da177e4SLinus Torvalds 22871da177e4SLinus Torvalds /* 22881da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22891da177e4SLinus Torvalds */ 22909f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22919f06c719SChuck Lever struct xdr_stream *xdr, 22929f06c719SChuck Lever struct nfs_open_confirmargs *args) 22931da177e4SLinus Torvalds { 22941da177e4SLinus Torvalds struct compound_hdr hdr = { 2295d017931cSAndy Adamson .nops = 0, 22961da177e4SLinus Torvalds }; 22971da177e4SLinus Torvalds 22989f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22999f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23009f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2301d017931cSAndy Adamson encode_nops(&hdr); 23021da177e4SLinus Torvalds } 23031da177e4SLinus Torvalds 23041da177e4SLinus Torvalds /* 23051da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23061da177e4SLinus Torvalds */ 23079f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23089f06c719SChuck Lever struct xdr_stream *xdr, 23099f06c719SChuck Lever struct nfs_openargs *args) 23101da177e4SLinus Torvalds { 23111da177e4SLinus Torvalds struct compound_hdr hdr = { 231266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23131da177e4SLinus Torvalds }; 23141da177e4SLinus Torvalds 23159f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23169f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23179f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23189f06c719SChuck Lever encode_open(xdr, args, &hdr); 2319ae2bb032SWeston Andros Adamson if (args->access) 23206168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2321e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2322d017931cSAndy Adamson encode_nops(&hdr); 23231da177e4SLinus Torvalds } 23241da177e4SLinus Torvalds 23251da177e4SLinus Torvalds /* 23261da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23271da177e4SLinus Torvalds */ 23289f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23299f06c719SChuck Lever struct xdr_stream *xdr, 23309f06c719SChuck Lever struct nfs_closeargs *args) 23311da177e4SLinus Torvalds { 23321da177e4SLinus Torvalds struct compound_hdr hdr = { 233366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23341da177e4SLinus Torvalds }; 23351da177e4SLinus Torvalds 23369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23379f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23389f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23399f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 23409f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2341d017931cSAndy Adamson encode_nops(&hdr); 23421da177e4SLinus Torvalds } 23431da177e4SLinus Torvalds 23441da177e4SLinus Torvalds /* 23451da177e4SLinus Torvalds * Encode a LOCK request 23461da177e4SLinus Torvalds */ 23479f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 23489f06c719SChuck Lever struct nfs_lock_args *args) 23491da177e4SLinus Torvalds { 23501da177e4SLinus Torvalds struct compound_hdr hdr = { 235166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23521da177e4SLinus Torvalds }; 23531da177e4SLinus Torvalds 23549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23559f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23569f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23579f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2358d017931cSAndy Adamson encode_nops(&hdr); 23591da177e4SLinus Torvalds } 23601da177e4SLinus Torvalds 23611da177e4SLinus Torvalds /* 23621da177e4SLinus Torvalds * Encode a LOCKT request 23631da177e4SLinus Torvalds */ 23649f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23659f06c719SChuck Lever struct nfs_lockt_args *args) 23661da177e4SLinus Torvalds { 23671da177e4SLinus Torvalds struct compound_hdr hdr = { 236866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23691da177e4SLinus Torvalds }; 23701da177e4SLinus Torvalds 23719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23729f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23739f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23749f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2375d017931cSAndy Adamson encode_nops(&hdr); 23761da177e4SLinus Torvalds } 23771da177e4SLinus Torvalds 23781da177e4SLinus Torvalds /* 23791da177e4SLinus Torvalds * Encode a LOCKU request 23801da177e4SLinus Torvalds */ 23819f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23829f06c719SChuck Lever struct nfs_locku_args *args) 23831da177e4SLinus Torvalds { 23841da177e4SLinus Torvalds struct compound_hdr hdr = { 238566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23861da177e4SLinus Torvalds }; 23871da177e4SLinus Torvalds 23889f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23899f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23909f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23919f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2392d017931cSAndy Adamson encode_nops(&hdr); 23931da177e4SLinus Torvalds } 23941da177e4SLinus Torvalds 23959f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23969f06c719SChuck Lever struct xdr_stream *xdr, 23979f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2398d3c7b7ccSTrond Myklebust { 2399d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2400d3c7b7ccSTrond Myklebust .minorversion = 0, 2401d3c7b7ccSTrond Myklebust }; 2402d3c7b7ccSTrond Myklebust 24039f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24049f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2405d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2406d3c7b7ccSTrond Myklebust } 2407d3c7b7ccSTrond Myklebust 24081da177e4SLinus Torvalds /* 24091da177e4SLinus Torvalds * Encode a READLINK request 24101da177e4SLinus Torvalds */ 24119f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 24129f06c719SChuck Lever const struct nfs4_readlink *args) 24131da177e4SLinus Torvalds { 24141da177e4SLinus Torvalds struct compound_hdr hdr = { 241566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24161da177e4SLinus Torvalds }; 24171da177e4SLinus Torvalds 24189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24209f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24219f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2422e3a535e1STrond Myklebust 242328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2424e3a535e1STrond Myklebust args->pgbase, args->pglen); 2425d017931cSAndy Adamson encode_nops(&hdr); 24261da177e4SLinus Torvalds } 24271da177e4SLinus Torvalds 24281da177e4SLinus Torvalds /* 24291da177e4SLinus Torvalds * Encode a READDIR request 24301da177e4SLinus Torvalds */ 24319f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24329f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24331da177e4SLinus Torvalds { 24341da177e4SLinus Torvalds struct compound_hdr hdr = { 243566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24361da177e4SLinus Torvalds }; 24371da177e4SLinus Torvalds 24389f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24399f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24409f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24419f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2442d6ac02dfSTrond Myklebust 244328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2444d6ac02dfSTrond Myklebust args->pgbase, args->count); 2445d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 244628f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2447d6ac02dfSTrond Myklebust args->pgbase, args->count); 2448d017931cSAndy Adamson encode_nops(&hdr); 24491da177e4SLinus Torvalds } 24501da177e4SLinus Torvalds 24511da177e4SLinus Torvalds /* 24521da177e4SLinus Torvalds * Encode a READ request 24531da177e4SLinus Torvalds */ 24549f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24559f06c719SChuck Lever struct nfs_readargs *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_read(xdr, args, &hdr); 24651da177e4SLinus Torvalds 246628f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24671da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24684f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2469d017931cSAndy Adamson encode_nops(&hdr); 24701da177e4SLinus Torvalds } 24711da177e4SLinus Torvalds 24721da177e4SLinus Torvalds /* 24731da177e4SLinus Torvalds * Encode an SETATTR request 24741da177e4SLinus Torvalds */ 24759f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24769f06c719SChuck Lever struct nfs_setattrargs *args) 24771da177e4SLinus Torvalds { 24781da177e4SLinus Torvalds struct compound_hdr hdr = { 247966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24801da177e4SLinus Torvalds }; 24811da177e4SLinus Torvalds 24829f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24839f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24849f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24859f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24869f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2487d017931cSAndy Adamson encode_nops(&hdr); 24881da177e4SLinus Torvalds } 24891da177e4SLinus Torvalds 24901da177e4SLinus Torvalds /* 2491029d105eSJ. Bruce Fields * Encode a GETACL request 2492029d105eSJ. Bruce Fields */ 24939f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2494029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2495029d105eSJ. Bruce Fields { 2496029d105eSJ. Bruce Fields struct compound_hdr hdr = { 249766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2498029d105eSJ. Bruce Fields }; 249928f56694SBenny Halevy uint32_t replen; 2500029d105eSJ. Bruce Fields 25019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2504bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 25059f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2506cf8cdbe5SAndy Adamson 250728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2508029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2509bf118a34SAndy Adamson 2510d017931cSAndy Adamson encode_nops(&hdr); 2511029d105eSJ. Bruce Fields } 2512029d105eSJ. Bruce Fields 2513029d105eSJ. Bruce Fields /* 25141da177e4SLinus Torvalds * Encode a WRITE request 25151da177e4SLinus Torvalds */ 25169f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25179f06c719SChuck Lever struct nfs_writeargs *args) 25181da177e4SLinus Torvalds { 25191da177e4SLinus Torvalds struct compound_hdr hdr = { 252066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25211da177e4SLinus Torvalds }; 25221da177e4SLinus Torvalds 25239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25249f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25259f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25269f06c719SChuck Lever encode_write(xdr, args, &hdr); 25274f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25287ffd1064SFred Isaman if (args->bitmask) 25299f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2530d017931cSAndy Adamson encode_nops(&hdr); 25311da177e4SLinus Torvalds } 25321da177e4SLinus Torvalds 25331da177e4SLinus Torvalds /* 25341da177e4SLinus Torvalds * a COMMIT request 25351da177e4SLinus Torvalds */ 25369f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25370b7c0153SFred Isaman struct nfs_commitargs *args) 25381da177e4SLinus Torvalds { 25391da177e4SLinus Torvalds struct compound_hdr hdr = { 254066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25411da177e4SLinus Torvalds }; 25421da177e4SLinus Torvalds 25439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25449f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25459f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25469f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2547d017931cSAndy Adamson encode_nops(&hdr); 25481da177e4SLinus Torvalds } 25491da177e4SLinus Torvalds 25501da177e4SLinus Torvalds /* 25511da177e4SLinus Torvalds * FSINFO request 25521da177e4SLinus Torvalds */ 25539f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 25549f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25551da177e4SLinus Torvalds { 25561da177e4SLinus Torvalds struct compound_hdr hdr = { 255766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25581da177e4SLinus Torvalds }; 25591da177e4SLinus Torvalds 25609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25619f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25629f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25639f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2564d017931cSAndy Adamson encode_nops(&hdr); 25651da177e4SLinus Torvalds } 25661da177e4SLinus Torvalds 25671da177e4SLinus Torvalds /* 25681da177e4SLinus Torvalds * a PATHCONF request 25691da177e4SLinus Torvalds */ 25709f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25719f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25721da177e4SLinus Torvalds { 25731da177e4SLinus Torvalds struct compound_hdr hdr = { 257466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25751da177e4SLinus Torvalds }; 25761da177e4SLinus Torvalds 25779f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25789f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25799f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25809f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2581d017931cSAndy Adamson &hdr); 2582d017931cSAndy Adamson encode_nops(&hdr); 25831da177e4SLinus Torvalds } 25841da177e4SLinus Torvalds 25851da177e4SLinus Torvalds /* 25861da177e4SLinus Torvalds * a STATFS request 25871da177e4SLinus Torvalds */ 25889f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25899f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25901da177e4SLinus Torvalds { 25911da177e4SLinus Torvalds struct compound_hdr hdr = { 259266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25931da177e4SLinus Torvalds }; 25941da177e4SLinus Torvalds 25959f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25969f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25979f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25989f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2599d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2600d017931cSAndy Adamson encode_nops(&hdr); 26011da177e4SLinus Torvalds } 26021da177e4SLinus Torvalds 26031da177e4SLinus Torvalds /* 26041da177e4SLinus Torvalds * GETATTR_BITMAP request 26051da177e4SLinus Torvalds */ 26069f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26079f06c719SChuck Lever struct xdr_stream *xdr, 260843652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 26091da177e4SLinus Torvalds { 26101da177e4SLinus Torvalds struct compound_hdr hdr = { 261166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26121da177e4SLinus Torvalds }; 26131da177e4SLinus Torvalds 26149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26159f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26169f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26179f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2618264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 26191da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 26201da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2621d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2622d017931cSAndy Adamson encode_nops(&hdr); 26231da177e4SLinus Torvalds } 26241da177e4SLinus Torvalds 26251da177e4SLinus Torvalds /* 26261da177e4SLinus Torvalds * a RENEW request 26271da177e4SLinus Torvalds */ 26289f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 26299f06c719SChuck Lever struct nfs_client *clp) 26301da177e4SLinus Torvalds { 26311da177e4SLinus Torvalds struct compound_hdr hdr = { 2632d017931cSAndy Adamson .nops = 0, 26331da177e4SLinus Torvalds }; 26341da177e4SLinus Torvalds 26359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2636bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2637d017931cSAndy Adamson encode_nops(&hdr); 26381da177e4SLinus Torvalds } 26391da177e4SLinus Torvalds 26401da177e4SLinus Torvalds /* 26411da177e4SLinus Torvalds * a SETCLIENTID request 26421da177e4SLinus Torvalds */ 26439f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 26449f06c719SChuck Lever struct xdr_stream *xdr, 26459f06c719SChuck Lever struct nfs4_setclientid *sc) 26461da177e4SLinus Torvalds { 26471da177e4SLinus Torvalds struct compound_hdr hdr = { 2648d017931cSAndy Adamson .nops = 0, 26491da177e4SLinus Torvalds }; 26501da177e4SLinus Torvalds 26519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26529f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2653d017931cSAndy Adamson encode_nops(&hdr); 26541da177e4SLinus Torvalds } 26551da177e4SLinus Torvalds 26561da177e4SLinus Torvalds /* 26571da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 26581da177e4SLinus Torvalds */ 26599f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26609f06c719SChuck Lever struct xdr_stream *xdr, 26619f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26621da177e4SLinus Torvalds { 26631da177e4SLinus Torvalds struct compound_hdr hdr = { 2664d017931cSAndy Adamson .nops = 0, 26651da177e4SLinus Torvalds }; 26661da177e4SLinus Torvalds 26679f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26689f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 2669d017931cSAndy Adamson encode_nops(&hdr); 26701da177e4SLinus Torvalds } 26711da177e4SLinus Torvalds 26721da177e4SLinus Torvalds /* 26731da177e4SLinus Torvalds * DELEGRETURN request 26741da177e4SLinus Torvalds */ 26759f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26769f06c719SChuck Lever struct xdr_stream *xdr, 26779f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26781da177e4SLinus Torvalds { 26791da177e4SLinus Torvalds struct compound_hdr hdr = { 268066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26811da177e4SLinus Torvalds }; 26821da177e4SLinus Torvalds 26839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26859f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26869f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2687e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2688d017931cSAndy Adamson encode_nops(&hdr); 26891da177e4SLinus Torvalds } 26901da177e4SLinus Torvalds 26911da177e4SLinus Torvalds /* 2692683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2693683b57b4STrond Myklebust */ 26949f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26959f06c719SChuck Lever struct xdr_stream *xdr, 26969f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2697683b57b4STrond Myklebust { 2698683b57b4STrond Myklebust struct compound_hdr hdr = { 269966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2700683b57b4STrond Myklebust }; 270128f56694SBenny Halevy uint32_t replen; 2702683b57b4STrond Myklebust 27039f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27049f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 2705b03d735bSChuck Lever if (args->migration) { 2706b03d735bSChuck Lever encode_putfh(xdr, args->fh, &hdr); 2707b03d735bSChuck Lever replen = hdr.replen; 2708b03d735bSChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2709b03d735bSChuck Lever if (args->renew) 2710b03d735bSChuck Lever encode_renew(xdr, args->clientid, &hdr); 2711b03d735bSChuck Lever } else { 27129f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27139f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 2714b03d735bSChuck Lever replen = hdr.replen; 27159f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2716b03d735bSChuck Lever } 2717cf8cdbe5SAndy Adamson 2718b03d735bSChuck Lever /* Set up reply kvec to capture returned fs_locations array. */ 271928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2720683b57b4STrond Myklebust 0, PAGE_SIZE); 2721d017931cSAndy Adamson encode_nops(&hdr); 2722683b57b4STrond Myklebust } 2723683b57b4STrond Myklebust 27245a5ea0d4SBryan Schumaker /* 27255a5ea0d4SBryan Schumaker * Encode SECINFO request 27265a5ea0d4SBryan Schumaker */ 27275a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27285a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27295a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27305a5ea0d4SBryan Schumaker { 27315a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27325a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27335a5ea0d4SBryan Schumaker }; 27345a5ea0d4SBryan Schumaker 27355a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27365a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27375a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27385a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27395a5ea0d4SBryan Schumaker encode_nops(&hdr); 27405a5ea0d4SBryan Schumaker } 27415a5ea0d4SBryan Schumaker 274244c99933SChuck Lever /* 274344c99933SChuck Lever * Encode FSID_PRESENT request 274444c99933SChuck Lever */ 274544c99933SChuck Lever static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req, 274644c99933SChuck Lever struct xdr_stream *xdr, 274744c99933SChuck Lever struct nfs4_fsid_present_arg *args) 274844c99933SChuck Lever { 274944c99933SChuck Lever struct compound_hdr hdr = { 275044c99933SChuck Lever .minorversion = nfs4_xdr_minorversion(&args->seq_args), 275144c99933SChuck Lever }; 275244c99933SChuck Lever 275344c99933SChuck Lever encode_compound_hdr(xdr, req, &hdr); 275444c99933SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 275544c99933SChuck Lever encode_putfh(xdr, args->fh, &hdr); 275644c99933SChuck Lever encode_getfh(xdr, &hdr); 275744c99933SChuck Lever if (args->renew) 275844c99933SChuck Lever encode_renew(xdr, args->clientid, &hdr); 275944c99933SChuck Lever encode_nops(&hdr); 276044c99933SChuck Lever } 276144c99933SChuck Lever 276299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 276399fe60d0SBenny Halevy /* 27647c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 27657c44f1aeSWeston Andros Adamson */ 27667c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 27677c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 27687c44f1aeSWeston Andros Adamson struct nfs_client *clp) 27697c44f1aeSWeston Andros Adamson { 27707c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 27717c44f1aeSWeston Andros Adamson .minorversion = clp->cl_mvops->minor_version, 27727c44f1aeSWeston Andros Adamson }; 27737c44f1aeSWeston Andros Adamson 27747c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 27757c44f1aeSWeston Andros Adamson encode_bind_conn_to_session(xdr, clp->cl_session, &hdr); 27767c44f1aeSWeston Andros Adamson encode_nops(&hdr); 27777c44f1aeSWeston Andros Adamson } 27787c44f1aeSWeston Andros Adamson 27797c44f1aeSWeston Andros Adamson /* 278099fe60d0SBenny Halevy * EXCHANGE_ID request 278199fe60d0SBenny Halevy */ 27829f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27839f06c719SChuck Lever struct xdr_stream *xdr, 278499fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 278599fe60d0SBenny Halevy { 278699fe60d0SBenny Halevy struct compound_hdr hdr = { 2787a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 278899fe60d0SBenny Halevy }; 278999fe60d0SBenny Halevy 27909f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27919f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 279299fe60d0SBenny Halevy encode_nops(&hdr); 279399fe60d0SBenny Halevy } 27942050f0ccSAndy Adamson 27952050f0ccSAndy Adamson /* 2796fc931582SAndy Adamson * a CREATE_SESSION request 2797fc931582SAndy Adamson */ 27989f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27999f06c719SChuck Lever struct xdr_stream *xdr, 2800fc931582SAndy Adamson struct nfs41_create_session_args *args) 2801fc931582SAndy Adamson { 2802fc931582SAndy Adamson struct compound_hdr hdr = { 2803a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2804fc931582SAndy Adamson }; 2805fc931582SAndy Adamson 28069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28079f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2808fc931582SAndy Adamson encode_nops(&hdr); 2809fc931582SAndy Adamson } 2810fc931582SAndy Adamson 2811fc931582SAndy Adamson /* 28120f3e66c6SAndy Adamson * a DESTROY_SESSION request 28130f3e66c6SAndy Adamson */ 28149f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 28159f06c719SChuck Lever struct xdr_stream *xdr, 28160f3e66c6SAndy Adamson struct nfs4_session *session) 28170f3e66c6SAndy Adamson { 28180f3e66c6SAndy Adamson struct compound_hdr hdr = { 2819a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28200f3e66c6SAndy Adamson }; 28210f3e66c6SAndy Adamson 28229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28239f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28240f3e66c6SAndy Adamson encode_nops(&hdr); 28250f3e66c6SAndy Adamson } 28260f3e66c6SAndy Adamson 28270f3e66c6SAndy Adamson /* 282866245539STrond Myklebust * a DESTROY_CLIENTID request 282966245539STrond Myklebust */ 283066245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 283166245539STrond Myklebust struct xdr_stream *xdr, 283266245539STrond Myklebust struct nfs_client *clp) 283366245539STrond Myklebust { 283466245539STrond Myklebust struct compound_hdr hdr = { 283566245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 283666245539STrond Myklebust }; 283766245539STrond Myklebust 283866245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 283966245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 284066245539STrond Myklebust encode_nops(&hdr); 284166245539STrond Myklebust } 284266245539STrond Myklebust 284366245539STrond Myklebust /* 2844fc01cea9SAndy Adamson * a SEQUENCE request 2845fc01cea9SAndy Adamson */ 28469f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2847fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2848fc01cea9SAndy Adamson { 2849fc01cea9SAndy Adamson struct compound_hdr hdr = { 2850fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2851fc01cea9SAndy Adamson }; 2852fc01cea9SAndy Adamson 28539f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28549f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2855fc01cea9SAndy Adamson encode_nops(&hdr); 2856fc01cea9SAndy Adamson } 2857fc01cea9SAndy Adamson 2858fc01cea9SAndy Adamson /* 28592050f0ccSAndy Adamson * a GET_LEASE_TIME request 28602050f0ccSAndy Adamson */ 28619f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28629f06c719SChuck Lever struct xdr_stream *xdr, 28632050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28642050f0ccSAndy Adamson { 28652050f0ccSAndy Adamson struct compound_hdr hdr = { 28662050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28672050f0ccSAndy Adamson }; 2868dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28692050f0ccSAndy Adamson 28709f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28719f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28729f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28739f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28742050f0ccSAndy Adamson encode_nops(&hdr); 28752050f0ccSAndy Adamson } 287618019753SRicardo Labiaga 287718019753SRicardo Labiaga /* 287818019753SRicardo Labiaga * a RECLAIM_COMPLETE request 287918019753SRicardo Labiaga */ 28809f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28819f06c719SChuck Lever struct xdr_stream *xdr, 288218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 288318019753SRicardo Labiaga { 288418019753SRicardo Labiaga struct compound_hdr hdr = { 288518019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 288618019753SRicardo Labiaga }; 288718019753SRicardo Labiaga 28889f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28899f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28909f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 289118019753SRicardo Labiaga encode_nops(&hdr); 289218019753SRicardo Labiaga } 289318019753SRicardo Labiaga 2894b1f69b75SAndy Adamson /* 28957f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28967f11d8d3SAndy Adamson */ 28977f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28987f11d8d3SAndy Adamson struct xdr_stream *xdr, 28997f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 29007f11d8d3SAndy Adamson { 29017f11d8d3SAndy Adamson struct compound_hdr hdr = { 29027f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29037f11d8d3SAndy Adamson }; 29047f11d8d3SAndy Adamson 29057f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 29067f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 29077f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 29087f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 29097f11d8d3SAndy Adamson encode_nops(&hdr); 29107f11d8d3SAndy Adamson } 29117f11d8d3SAndy Adamson 29127f11d8d3SAndy Adamson /* 2913b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2914b1f69b75SAndy Adamson */ 29159f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 29169f06c719SChuck Lever struct xdr_stream *xdr, 2917b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2918b1f69b75SAndy Adamson { 2919b1f69b75SAndy Adamson struct compound_hdr hdr = { 2920b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2921b1f69b75SAndy Adamson }; 2922b1f69b75SAndy Adamson 29239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29249f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29259f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2926b1f69b75SAndy Adamson 2927b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2928b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2929b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2930b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2931b1f69b75SAndy Adamson args->pdev->pglen); 2932b1f69b75SAndy Adamson 2933b1f69b75SAndy Adamson encode_nops(&hdr); 2934b1f69b75SAndy Adamson } 2935b1f69b75SAndy Adamson 2936b1f69b75SAndy Adamson /* 2937b1f69b75SAndy Adamson * Encode LAYOUTGET request 2938b1f69b75SAndy Adamson */ 29399f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29409f06c719SChuck Lever struct xdr_stream *xdr, 2941b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2942b1f69b75SAndy Adamson { 2943b1f69b75SAndy Adamson struct compound_hdr hdr = { 2944b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2945b1f69b75SAndy Adamson }; 2946b1f69b75SAndy Adamson 29479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29489f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29499f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29509f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 295135124a09SWeston Andros Adamson 295235124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 295335124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 295435124a09SWeston Andros Adamson 2955b1f69b75SAndy Adamson encode_nops(&hdr); 2956b1f69b75SAndy Adamson } 2957863a3c6cSAndy Adamson 2958863a3c6cSAndy Adamson /* 2959863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2960863a3c6cSAndy Adamson */ 2961cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2962863a3c6cSAndy Adamson struct xdr_stream *xdr, 2963863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2964863a3c6cSAndy Adamson { 2965ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2966ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2967863a3c6cSAndy Adamson struct compound_hdr hdr = { 2968863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2969863a3c6cSAndy Adamson }; 2970863a3c6cSAndy Adamson 2971863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2972863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2973863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2974ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2975863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2976863a3c6cSAndy Adamson encode_nops(&hdr); 2977cbe82603SBenny Halevy } 2978cbe82603SBenny Halevy 2979cbe82603SBenny Halevy /* 2980cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2981cbe82603SBenny Halevy */ 2982cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2983cbe82603SBenny Halevy struct xdr_stream *xdr, 2984cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2985cbe82603SBenny Halevy { 2986cbe82603SBenny Halevy struct compound_hdr hdr = { 2987cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2988cbe82603SBenny Halevy }; 2989cbe82603SBenny Halevy 2990cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2991cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2992cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2993cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2994cbe82603SBenny Halevy encode_nops(&hdr); 2995863a3c6cSAndy Adamson } 2996fca78d6dSBryan Schumaker 2997fca78d6dSBryan Schumaker /* 2998fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2999fca78d6dSBryan Schumaker */ 3000fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 3001fca78d6dSBryan Schumaker struct xdr_stream *xdr, 3002fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 3003fca78d6dSBryan Schumaker { 3004fca78d6dSBryan Schumaker struct compound_hdr hdr = { 3005fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3006fca78d6dSBryan Schumaker }; 3007fca78d6dSBryan Schumaker 3008fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 3009fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 3010fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 3011fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 3012fca78d6dSBryan Schumaker encode_nops(&hdr); 3013fca78d6dSBryan Schumaker return 0; 3014fca78d6dSBryan Schumaker } 30157d974794SBryan Schumaker 30167d974794SBryan Schumaker /* 30177d974794SBryan Schumaker * Encode TEST_STATEID request 30187d974794SBryan Schumaker */ 30197d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 30207d974794SBryan Schumaker struct xdr_stream *xdr, 30217d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 30227d974794SBryan Schumaker { 30237d974794SBryan Schumaker struct compound_hdr hdr = { 30247d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30257d974794SBryan Schumaker }; 30267d974794SBryan Schumaker 30277d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30287d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30297d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 30307d974794SBryan Schumaker encode_nops(&hdr); 30317d974794SBryan Schumaker } 30329aeda35fSBryan Schumaker 30339aeda35fSBryan Schumaker /* 30349aeda35fSBryan Schumaker * Encode FREE_STATEID request 30359aeda35fSBryan Schumaker */ 30369aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30379aeda35fSBryan Schumaker struct xdr_stream *xdr, 30389aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 30399aeda35fSBryan Schumaker { 30409aeda35fSBryan Schumaker struct compound_hdr hdr = { 30419aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30429aeda35fSBryan Schumaker }; 30439aeda35fSBryan Schumaker 30449aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30459aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30469aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30479aeda35fSBryan Schumaker encode_nops(&hdr); 30489aeda35fSBryan Schumaker } 304999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 305099fe60d0SBenny Halevy 3051686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3052686841b3SBenny Halevy { 3053686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3054686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3055686841b3SBenny Halevy func, xdr->end - xdr->p); 3056686841b3SBenny Halevy } 30571da177e4SLinus Torvalds 3058683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30591da177e4SLinus Torvalds { 30608687b63aSAl Viro __be32 *p; 30611da177e4SLinus Torvalds 3062c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3063c0eae66eSBenny Halevy if (unlikely(!p)) 3064c0eae66eSBenny Halevy goto out_overflow; 3065cccddf4fSBenny Halevy *len = be32_to_cpup(p); 3066c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 3067c0eae66eSBenny Halevy if (unlikely(!p)) 3068c0eae66eSBenny Halevy goto out_overflow; 30691da177e4SLinus Torvalds *string = (char *)p; 30701da177e4SLinus Torvalds return 0; 3071c0eae66eSBenny Halevy out_overflow: 3072c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3073c0eae66eSBenny Halevy return -EIO; 30741da177e4SLinus Torvalds } 30751da177e4SLinus Torvalds 30761da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30771da177e4SLinus Torvalds { 30788687b63aSAl Viro __be32 *p; 30791da177e4SLinus Torvalds 3080c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3081c0eae66eSBenny Halevy if (unlikely(!p)) 3082c0eae66eSBenny Halevy goto out_overflow; 30836f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3084cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30851da177e4SLinus Torvalds 3086c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3087c0eae66eSBenny Halevy if (unlikely(!p)) 3088c0eae66eSBenny Halevy goto out_overflow; 30891da177e4SLinus Torvalds hdr->tag = (char *)p; 30901da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3091cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3092aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3093aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30941da177e4SLinus Torvalds return 0; 3095c0eae66eSBenny Halevy out_overflow: 3096c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3097c0eae66eSBenny Halevy return -EIO; 30981da177e4SLinus Torvalds } 30991da177e4SLinus Torvalds 3100c7848f69STrond Myklebust static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected, 3101c7848f69STrond Myklebust int *nfs_retval) 31021da177e4SLinus Torvalds { 31038687b63aSAl Viro __be32 *p; 31041da177e4SLinus Torvalds uint32_t opnum; 31051da177e4SLinus Torvalds int32_t nfserr; 31061da177e4SLinus Torvalds 3107c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3108c0eae66eSBenny Halevy if (unlikely(!p)) 3109c0eae66eSBenny Halevy goto out_overflow; 31106f723f77SBenny Halevy opnum = be32_to_cpup(p++); 3111c7848f69STrond Myklebust if (unlikely(opnum != expected)) 3112c7848f69STrond Myklebust goto out_bad_operation; 3113c7848f69STrond Myklebust nfserr = be32_to_cpup(p); 3114c7848f69STrond Myklebust if (nfserr == NFS_OK) 3115c7848f69STrond Myklebust *nfs_retval = 0; 3116c7848f69STrond Myklebust else 3117c7848f69STrond Myklebust *nfs_retval = nfs4_stat_to_errno(nfserr); 3118c7848f69STrond Myklebust return true; 3119c7848f69STrond Myklebust out_bad_operation: 3120fe82a183SChuck Lever dprintk("nfs: Server returned operation" 31211da177e4SLinus Torvalds " %d but we issued a request for %d\n", 31221da177e4SLinus Torvalds opnum, expected); 3123c7848f69STrond Myklebust *nfs_retval = -EREMOTEIO; 3124c7848f69STrond Myklebust return false; 3125c0eae66eSBenny Halevy out_overflow: 3126c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3127c7848f69STrond Myklebust *nfs_retval = -EIO; 3128c7848f69STrond Myklebust return false; 3129c7848f69STrond Myklebust } 3130c7848f69STrond Myklebust 3131c7848f69STrond Myklebust static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 3132c7848f69STrond Myklebust { 3133c7848f69STrond Myklebust int retval; 3134c7848f69STrond Myklebust 3135c7848f69STrond Myklebust __decode_op_hdr(xdr, expected, &retval); 3136c7848f69STrond Myklebust return retval; 31371da177e4SLinus Torvalds } 31381da177e4SLinus Torvalds 31391da177e4SLinus Torvalds /* Dummy routine */ 3140adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 31411da177e4SLinus Torvalds { 31428687b63aSAl Viro __be32 *p; 3143683b57b4STrond Myklebust unsigned int strlen; 31441da177e4SLinus Torvalds char *str; 31451da177e4SLinus Torvalds 3146c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3147c0eae66eSBenny Halevy if (likely(p)) 31481da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3149c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3150c0eae66eSBenny Halevy return -EIO; 31511da177e4SLinus Torvalds } 31521da177e4SLinus Torvalds 31531da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31541da177e4SLinus Torvalds { 31558687b63aSAl Viro uint32_t bmlen; 31568687b63aSAl Viro __be32 *p; 31571da177e4SLinus Torvalds 3158c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3159c0eae66eSBenny Halevy if (unlikely(!p)) 3160c0eae66eSBenny Halevy goto out_overflow; 3161cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31621da177e4SLinus Torvalds 3163dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3164c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3165c0eae66eSBenny Halevy if (unlikely(!p)) 3166c0eae66eSBenny Halevy goto out_overflow; 31671da177e4SLinus Torvalds if (bmlen > 0) { 31686f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3169dae100c2SFred Isaman if (bmlen > 1) { 3170dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3171dae100c2SFred Isaman if (bmlen > 2) 3172dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3173dae100c2SFred Isaman } 31741da177e4SLinus Torvalds } 31751da177e4SLinus Torvalds return 0; 3176c0eae66eSBenny Halevy out_overflow: 3177c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3178c0eae66eSBenny Halevy return -EIO; 31791da177e4SLinus Torvalds } 31801da177e4SLinus Torvalds 3181256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 31821da177e4SLinus Torvalds { 31838687b63aSAl Viro __be32 *p; 31841da177e4SLinus Torvalds 3185c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3186c0eae66eSBenny Halevy if (unlikely(!p)) 3187c0eae66eSBenny Halevy goto out_overflow; 3188cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3189256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 31901da177e4SLinus Torvalds return 0; 3191c0eae66eSBenny Halevy out_overflow: 3192c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3193c0eae66eSBenny Halevy return -EIO; 31941da177e4SLinus Torvalds } 31951da177e4SLinus Torvalds 31961da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31971da177e4SLinus Torvalds { 31981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31993388bff5SRoman Borisov int ret; 32003388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 32013388bff5SRoman Borisov if (unlikely(ret < 0)) 32023388bff5SRoman Borisov return ret; 32031da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 32041da177e4SLinus Torvalds } else 3205dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3206dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3207dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 32081da177e4SLinus Torvalds return 0; 32091da177e4SLinus Torvalds } 32101da177e4SLinus Torvalds 32111da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 32121da177e4SLinus Torvalds { 32138687b63aSAl Viro __be32 *p; 3214409924e4STrond Myklebust int ret = 0; 32151da177e4SLinus Torvalds 32161da177e4SLinus Torvalds *type = 0; 32171da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 32181da177e4SLinus Torvalds return -EIO; 32191da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3220c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3221c0eae66eSBenny Halevy if (unlikely(!p)) 3222c0eae66eSBenny Halevy goto out_overflow; 3223cccddf4fSBenny Halevy *type = be32_to_cpup(p); 32241da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 32253110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 32261da177e4SLinus Torvalds return -EIO; 32271da177e4SLinus Torvalds } 32281da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3229409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32301da177e4SLinus Torvalds } 3231bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3232409924e4STrond Myklebust return ret; 3233c0eae66eSBenny Halevy out_overflow: 3234c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3235c0eae66eSBenny Halevy return -EIO; 32361da177e4SLinus Torvalds } 32371da177e4SLinus Torvalds 3238264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3239264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3240264e6351SChuck Lever { 3241264e6351SChuck Lever __be32 *p; 3242264e6351SChuck Lever 3243264e6351SChuck Lever *type = 0; 3244264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3245264e6351SChuck Lever return -EIO; 3246264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3247264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3248264e6351SChuck Lever if (unlikely(!p)) 3249264e6351SChuck Lever goto out_overflow; 3250264e6351SChuck Lever *type = be32_to_cpup(p); 3251264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3252264e6351SChuck Lever } 3253264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3254264e6351SChuck Lever return 0; 3255264e6351SChuck Lever out_overflow: 3256264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3257264e6351SChuck Lever return -EIO; 3258264e6351SChuck Lever } 3259264e6351SChuck Lever 32601da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 32611da177e4SLinus Torvalds { 32628687b63aSAl Viro __be32 *p; 3263409924e4STrond Myklebust int ret = 0; 32641da177e4SLinus Torvalds 32651da177e4SLinus Torvalds *change = 0; 32661da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 32671da177e4SLinus Torvalds return -EIO; 32681da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3269c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3270c0eae66eSBenny Halevy if (unlikely(!p)) 3271c0eae66eSBenny Halevy goto out_overflow; 3272cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 32731da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3274409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 32751da177e4SLinus Torvalds } 32763110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32771da177e4SLinus Torvalds (unsigned long long)*change); 3278409924e4STrond Myklebust return ret; 3279c0eae66eSBenny Halevy out_overflow: 3280c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3281c0eae66eSBenny Halevy return -EIO; 32821da177e4SLinus Torvalds } 32831da177e4SLinus Torvalds 32841da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32851da177e4SLinus Torvalds { 32868687b63aSAl Viro __be32 *p; 3287409924e4STrond Myklebust int ret = 0; 32881da177e4SLinus Torvalds 32891da177e4SLinus Torvalds *size = 0; 32901da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32911da177e4SLinus Torvalds return -EIO; 32921da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3293c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3294c0eae66eSBenny Halevy if (unlikely(!p)) 3295c0eae66eSBenny Halevy goto out_overflow; 3296cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3298409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32991da177e4SLinus Torvalds } 33003110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3301409924e4STrond Myklebust return ret; 3302c0eae66eSBenny Halevy out_overflow: 3303c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3304c0eae66eSBenny Halevy return -EIO; 33051da177e4SLinus Torvalds } 33061da177e4SLinus Torvalds 33071da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33081da177e4SLinus Torvalds { 33098687b63aSAl Viro __be32 *p; 33101da177e4SLinus Torvalds 33111da177e4SLinus Torvalds *res = 0; 33121da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 33131da177e4SLinus Torvalds return -EIO; 33141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3315c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3316c0eae66eSBenny Halevy if (unlikely(!p)) 3317c0eae66eSBenny Halevy goto out_overflow; 3318cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33191da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 33201da177e4SLinus Torvalds } 33213110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 33221da177e4SLinus Torvalds return 0; 3323c0eae66eSBenny Halevy out_overflow: 3324c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3325c0eae66eSBenny Halevy return -EIO; 33261da177e4SLinus Torvalds } 33271da177e4SLinus Torvalds 33281da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33291da177e4SLinus Torvalds { 33308687b63aSAl Viro __be32 *p; 33311da177e4SLinus Torvalds 33321da177e4SLinus Torvalds *res = 0; 33331da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 33341da177e4SLinus Torvalds return -EIO; 33351da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3336c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3337c0eae66eSBenny Halevy if (unlikely(!p)) 3338c0eae66eSBenny Halevy goto out_overflow; 3339cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33401da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33411da177e4SLinus Torvalds } 33423110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33431da177e4SLinus Torvalds return 0; 3344c0eae66eSBenny Halevy out_overflow: 3345c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3346c0eae66eSBenny Halevy return -EIO; 33471da177e4SLinus Torvalds } 33481da177e4SLinus Torvalds 33498b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 33501da177e4SLinus Torvalds { 33518687b63aSAl Viro __be32 *p; 3352409924e4STrond Myklebust int ret = 0; 33531da177e4SLinus Torvalds 33541da177e4SLinus Torvalds fsid->major = 0; 33551da177e4SLinus Torvalds fsid->minor = 0; 33561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 33571da177e4SLinus Torvalds return -EIO; 33581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3359c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3360c0eae66eSBenny Halevy if (unlikely(!p)) 3361c0eae66eSBenny Halevy goto out_overflow; 33623ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3363cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 33641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3365409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 33661da177e4SLinus Torvalds } 33673110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 33681da177e4SLinus Torvalds (unsigned long long)fsid->major, 33691da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3370409924e4STrond Myklebust return ret; 3371c0eae66eSBenny Halevy out_overflow: 3372c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3373c0eae66eSBenny Halevy return -EIO; 33741da177e4SLinus Torvalds } 33751da177e4SLinus Torvalds 33761da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33771da177e4SLinus Torvalds { 33788687b63aSAl Viro __be32 *p; 33791da177e4SLinus Torvalds 33801da177e4SLinus Torvalds *res = 60; 33811da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33821da177e4SLinus Torvalds return -EIO; 33831da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3384c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3385c0eae66eSBenny Halevy if (unlikely(!p)) 3386c0eae66eSBenny Halevy goto out_overflow; 3387cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33881da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 33891da177e4SLinus Torvalds } 33903110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33911da177e4SLinus Torvalds return 0; 3392c0eae66eSBenny Halevy out_overflow: 3393c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3394c0eae66eSBenny Halevy return -EIO; 33951da177e4SLinus Torvalds } 33961da177e4SLinus Torvalds 3397ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3398ae42c70aSBryan Schumaker { 3399ae42c70aSBryan Schumaker __be32 *p; 3400ae42c70aSBryan Schumaker 3401ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3402ae42c70aSBryan Schumaker return -EIO; 3403ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3404ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3405ae42c70aSBryan Schumaker if (unlikely(!p)) 3406ae42c70aSBryan Schumaker goto out_overflow; 3407ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3408ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3409ae42c70aSBryan Schumaker } 3410ae42c70aSBryan Schumaker return 0; 3411ae42c70aSBryan Schumaker out_overflow: 3412ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3413ae42c70aSBryan Schumaker return -EIO; 3414ae42c70aSBryan Schumaker } 3415ae42c70aSBryan Schumaker 3416ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3417ae42c70aSBryan Schumaker { 3418ae42c70aSBryan Schumaker __be32 *p; 3419ae42c70aSBryan Schumaker int len; 3420ae42c70aSBryan Schumaker 34217ad07353STrond Myklebust if (fh != NULL) 3422ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3423ae42c70aSBryan Schumaker 3424ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3425ae42c70aSBryan Schumaker return -EIO; 3426ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3427ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3428ae42c70aSBryan Schumaker if (unlikely(!p)) 3429ae42c70aSBryan Schumaker goto out_overflow; 3430ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3431ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3432ae42c70aSBryan Schumaker return -EIO; 3433ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3434ae42c70aSBryan Schumaker if (unlikely(!p)) 3435ae42c70aSBryan Schumaker goto out_overflow; 34367ad07353STrond Myklebust if (fh != NULL) { 3437ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 34387ad07353STrond Myklebust fh->size = len; 34397ad07353STrond Myklebust } 3440ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3441ae42c70aSBryan Schumaker } 3442ae42c70aSBryan Schumaker return 0; 3443ae42c70aSBryan Schumaker out_overflow: 3444ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3445ae42c70aSBryan Schumaker return -EIO; 3446ae42c70aSBryan Schumaker } 3447ae42c70aSBryan Schumaker 34481da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34491da177e4SLinus Torvalds { 34508687b63aSAl Viro __be32 *p; 34511da177e4SLinus Torvalds 3452a1800acaSMalahal Naineni *res = 0; 34531da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 34541da177e4SLinus Torvalds return -EIO; 34551da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3456c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3457c0eae66eSBenny Halevy if (unlikely(!p)) 3458c0eae66eSBenny Halevy goto out_overflow; 3459cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34601da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 34611da177e4SLinus Torvalds } 34623110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 34631da177e4SLinus Torvalds return 0; 3464c0eae66eSBenny Halevy out_overflow: 3465c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3466c0eae66eSBenny Halevy return -EIO; 34671da177e4SLinus Torvalds } 34681da177e4SLinus Torvalds 34691da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 34701da177e4SLinus Torvalds { 34718687b63aSAl Viro __be32 *p; 3472409924e4STrond Myklebust int ret = 0; 34731da177e4SLinus Torvalds 34741da177e4SLinus Torvalds *fileid = 0; 34751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34761da177e4SLinus Torvalds return -EIO; 34771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3478c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3479c0eae66eSBenny Halevy if (unlikely(!p)) 3480c0eae66eSBenny Halevy goto out_overflow; 3481cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34821da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3483409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34841da177e4SLinus Torvalds } 34853110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3486409924e4STrond Myklebust return ret; 3487c0eae66eSBenny Halevy out_overflow: 3488c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3489c0eae66eSBenny Halevy return -EIO; 34901da177e4SLinus Torvalds } 34911da177e4SLinus Torvalds 349299baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 349399baf625SManoj Naik { 34948687b63aSAl Viro __be32 *p; 3495409924e4STrond Myklebust int ret = 0; 349699baf625SManoj Naik 349799baf625SManoj Naik *fileid = 0; 349899baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 349999baf625SManoj Naik return -EIO; 350099baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3501c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3502c0eae66eSBenny Halevy if (unlikely(!p)) 3503c0eae66eSBenny Halevy goto out_overflow; 3504cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 350599baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 350628331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 350799baf625SManoj Naik } 35083110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3509409924e4STrond Myklebust return ret; 3510c0eae66eSBenny Halevy out_overflow: 3511c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3512c0eae66eSBenny Halevy return -EIO; 351399baf625SManoj Naik } 351499baf625SManoj Naik 35151da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35161da177e4SLinus Torvalds { 35178687b63aSAl Viro __be32 *p; 35181da177e4SLinus Torvalds int status = 0; 35191da177e4SLinus Torvalds 35201da177e4SLinus Torvalds *res = 0; 35211da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 35221da177e4SLinus Torvalds return -EIO; 35231da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3524c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3525c0eae66eSBenny Halevy if (unlikely(!p)) 3526c0eae66eSBenny Halevy goto out_overflow; 3527cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35281da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 35291da177e4SLinus Torvalds } 35303110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 35311da177e4SLinus Torvalds return status; 3532c0eae66eSBenny Halevy out_overflow: 3533c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3534c0eae66eSBenny Halevy return -EIO; 35351da177e4SLinus Torvalds } 35361da177e4SLinus Torvalds 35371da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35381da177e4SLinus Torvalds { 35398687b63aSAl Viro __be32 *p; 35401da177e4SLinus Torvalds int status = 0; 35411da177e4SLinus Torvalds 35421da177e4SLinus Torvalds *res = 0; 35431da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35441da177e4SLinus Torvalds return -EIO; 35451da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3546c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3547c0eae66eSBenny Halevy if (unlikely(!p)) 3548c0eae66eSBenny Halevy goto out_overflow; 3549cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35501da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35511da177e4SLinus Torvalds } 35523110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35531da177e4SLinus Torvalds return status; 3554c0eae66eSBenny Halevy out_overflow: 3555c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3556c0eae66eSBenny Halevy return -EIO; 35571da177e4SLinus Torvalds } 35581da177e4SLinus Torvalds 35591da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35601da177e4SLinus Torvalds { 35618687b63aSAl Viro __be32 *p; 35621da177e4SLinus Torvalds int status = 0; 35631da177e4SLinus Torvalds 35641da177e4SLinus Torvalds *res = 0; 35651da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 35661da177e4SLinus Torvalds return -EIO; 35671da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3568c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3569c0eae66eSBenny Halevy if (unlikely(!p)) 3570c0eae66eSBenny Halevy goto out_overflow; 3571cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35721da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 35731da177e4SLinus Torvalds } 35743110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 35751da177e4SLinus Torvalds return status; 3576c0eae66eSBenny Halevy out_overflow: 3577c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3578c0eae66eSBenny Halevy return -EIO; 35791da177e4SLinus Torvalds } 35801da177e4SLinus Torvalds 35817aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35827aaa0b3bSManoj Naik { 3583464ad6b1SChuck Lever u32 n; 35848687b63aSAl Viro __be32 *p; 35857aaa0b3bSManoj Naik int status = 0; 35867aaa0b3bSManoj Naik 3587c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3588c0eae66eSBenny Halevy if (unlikely(!p)) 3589c0eae66eSBenny Halevy goto out_overflow; 3590cccddf4fSBenny Halevy n = be32_to_cpup(p); 359133a43f28SAndy Adamson if (n == 0) 359233a43f28SAndy Adamson goto root_path; 359302a2976cSChuck Lever dprintk("pathname4: "); 3594809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3595809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3596809b426cSTrond Myklebust goto out_eio; 3597809b426cSTrond Myklebust } 3598809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 35997aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 36007aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 36017aaa0b3bSManoj Naik if (unlikely(status != 0)) 36027aaa0b3bSManoj Naik goto out_eio; 360395a13f7bSTrond Myklebust ifdebug (XDR) 360402a2976cSChuck Lever pr_cont("%s%.*s ", 360502a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 360602a2976cSChuck Lever component->len, component->data); 36077aaa0b3bSManoj Naik } 36087aaa0b3bSManoj Naik out: 36097aaa0b3bSManoj Naik return status; 361033a43f28SAndy Adamson root_path: 361133a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 361233a43f28SAndy Adamson path->ncomponents = 1; 361333a43f28SAndy Adamson path->components[0].len=0; 361433a43f28SAndy Adamson path->components[0].data=NULL; 361502a2976cSChuck Lever dprintk("pathname4: /\n"); 361633a43f28SAndy Adamson goto out; 36177aaa0b3bSManoj Naik out_eio: 36187aaa0b3bSManoj Naik dprintk(" status %d", status); 36197aaa0b3bSManoj Naik status = -EIO; 36207aaa0b3bSManoj Naik goto out; 3621c0eae66eSBenny Halevy out_overflow: 3622c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3623c0eae66eSBenny Halevy return -EIO; 36247aaa0b3bSManoj Naik } 36257aaa0b3bSManoj Naik 36267aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3627683b57b4STrond Myklebust { 3628683b57b4STrond Myklebust int n; 36298687b63aSAl Viro __be32 *p; 3630683b57b4STrond Myklebust int status = -EIO; 3631683b57b4STrond Myklebust 3632683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3633683b57b4STrond Myklebust goto out; 3634683b57b4STrond Myklebust status = 0; 3635683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3636683b57b4STrond Myklebust goto out; 36378b7e3f49STrond Myklebust status = -EIO; 36388b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36398b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36408b7e3f49STrond Myklebust goto out; 364102a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 36427aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3643683b57b4STrond Myklebust if (unlikely(status != 0)) 3644683b57b4STrond Myklebust goto out; 3645c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3646c0eae66eSBenny Halevy if (unlikely(!p)) 3647c0eae66eSBenny Halevy goto out_overflow; 3648cccddf4fSBenny Halevy n = be32_to_cpup(p); 3649683b57b4STrond Myklebust if (n <= 0) 3650683b57b4STrond Myklebust goto out_eio; 3651809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3652464ad6b1SChuck Lever u32 m; 3653809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3654683b57b4STrond Myklebust 3655809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3656809b426cSTrond Myklebust break; 3657809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3658c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3659c0eae66eSBenny Halevy if (unlikely(!p)) 3660c0eae66eSBenny Halevy goto out_overflow; 3661cccddf4fSBenny Halevy m = be32_to_cpup(p); 36627aaa0b3bSManoj Naik 366302a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3664809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3665809b426cSTrond Myklebust struct nfs4_string *server; 3666809b426cSTrond Myklebust 3667809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3668464ad6b1SChuck Lever unsigned int i; 3669464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3670464ad6b1SChuck Lever "returned for location %u\n", 36713110ff80SHarvey Harrison __func__, 3672464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3673464ad6b1SChuck Lever m, res->nlocations); 36747aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36752e42c3e2STrond Myklebust unsigned int len; 36767aaa0b3bSManoj Naik char *data; 36777aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3678683b57b4STrond Myklebust if (unlikely(status != 0)) 3679683b57b4STrond Myklebust goto out_eio; 36807aaa0b3bSManoj Naik } 3681809b426cSTrond Myklebust break; 36827aaa0b3bSManoj Naik } 3683809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3684809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3685809b426cSTrond Myklebust if (unlikely(status != 0)) 3686809b426cSTrond Myklebust goto out_eio; 3687809b426cSTrond Myklebust dprintk("%s ", server->data); 36887aaa0b3bSManoj Naik } 36897aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36907aaa0b3bSManoj Naik if (unlikely(status != 0)) 36917aaa0b3bSManoj Naik goto out_eio; 3692683b57b4STrond Myklebust } 3693409924e4STrond Myklebust if (res->nlocations != 0) 369481934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3695683b57b4STrond Myklebust out: 36963110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3697683b57b4STrond Myklebust return status; 3698c0eae66eSBenny Halevy out_overflow: 3699c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3700683b57b4STrond Myklebust out_eio: 3701683b57b4STrond Myklebust status = -EIO; 3702683b57b4STrond Myklebust goto out; 3703683b57b4STrond Myklebust } 3704683b57b4STrond Myklebust 37051da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 37061da177e4SLinus Torvalds { 37078687b63aSAl Viro __be32 *p; 37081da177e4SLinus Torvalds int status = 0; 37091da177e4SLinus Torvalds 37101da177e4SLinus Torvalds *res = 0; 37111da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 37121da177e4SLinus Torvalds return -EIO; 37131da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3714c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3715c0eae66eSBenny Halevy if (unlikely(!p)) 3716c0eae66eSBenny Halevy goto out_overflow; 3717cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 37181da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 37191da177e4SLinus Torvalds } 37203110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 37211da177e4SLinus Torvalds return status; 3722c0eae66eSBenny Halevy out_overflow: 3723c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3724c0eae66eSBenny Halevy return -EIO; 37251da177e4SLinus Torvalds } 37261da177e4SLinus Torvalds 37271da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 37281da177e4SLinus Torvalds { 37298687b63aSAl Viro __be32 *p; 37301da177e4SLinus Torvalds int status = 0; 37311da177e4SLinus Torvalds 37321da177e4SLinus Torvalds *maxlink = 1; 37331da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 37341da177e4SLinus Torvalds return -EIO; 37351da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3736c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3737c0eae66eSBenny Halevy if (unlikely(!p)) 3738c0eae66eSBenny Halevy goto out_overflow; 3739cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37401da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37411da177e4SLinus Torvalds } 37423110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37431da177e4SLinus Torvalds return status; 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_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37501da177e4SLinus Torvalds { 37518687b63aSAl Viro __be32 *p; 37521da177e4SLinus Torvalds int status = 0; 37531da177e4SLinus Torvalds 37541da177e4SLinus Torvalds *maxname = 1024; 37551da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37561da177e4SLinus Torvalds return -EIO; 37571da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3758c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3759c0eae66eSBenny Halevy if (unlikely(!p)) 3760c0eae66eSBenny Halevy goto out_overflow; 3761cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37621da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37631da177e4SLinus Torvalds } 37643110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 37651da177e4SLinus Torvalds return status; 3766c0eae66eSBenny Halevy out_overflow: 3767c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3768c0eae66eSBenny Halevy return -EIO; 37691da177e4SLinus Torvalds } 37701da177e4SLinus Torvalds 37711da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37721da177e4SLinus Torvalds { 37738687b63aSAl Viro __be32 *p; 37741da177e4SLinus Torvalds int status = 0; 37751da177e4SLinus Torvalds 37761da177e4SLinus Torvalds *res = 1024; 37771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 37781da177e4SLinus Torvalds return -EIO; 37791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37801da177e4SLinus Torvalds uint64_t maxread; 3781c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3782c0eae66eSBenny Halevy if (unlikely(!p)) 3783c0eae66eSBenny Halevy goto out_overflow; 3784cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37851da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37861da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37871da177e4SLinus Torvalds *res = (uint32_t)maxread; 37881da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37891da177e4SLinus Torvalds } 37903110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37911da177e4SLinus Torvalds return status; 3792c0eae66eSBenny Halevy out_overflow: 3793c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3794c0eae66eSBenny Halevy return -EIO; 37951da177e4SLinus Torvalds } 37961da177e4SLinus Torvalds 37971da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37981da177e4SLinus Torvalds { 37998687b63aSAl Viro __be32 *p; 38001da177e4SLinus Torvalds int status = 0; 38011da177e4SLinus Torvalds 38021da177e4SLinus Torvalds *res = 1024; 38031da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 38041da177e4SLinus Torvalds return -EIO; 38051da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 38061da177e4SLinus Torvalds uint64_t maxwrite; 3807c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3808c0eae66eSBenny Halevy if (unlikely(!p)) 3809c0eae66eSBenny Halevy goto out_overflow; 3810cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 38111da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 38121da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 38131da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 38141da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 38151da177e4SLinus Torvalds } 38163110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 38171da177e4SLinus Torvalds return status; 3818c0eae66eSBenny Halevy out_overflow: 3819c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3820c0eae66eSBenny Halevy return -EIO; 38211da177e4SLinus Torvalds } 38221da177e4SLinus Torvalds 3823bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 38241da177e4SLinus Torvalds { 3825bca79478STrond Myklebust uint32_t tmp; 38268687b63aSAl Viro __be32 *p; 3827409924e4STrond Myklebust int ret = 0; 38281da177e4SLinus Torvalds 38291da177e4SLinus Torvalds *mode = 0; 38301da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38311da177e4SLinus Torvalds return -EIO; 38321da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3833c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3834c0eae66eSBenny Halevy if (unlikely(!p)) 3835c0eae66eSBenny Halevy goto out_overflow; 3836cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3837bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38381da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3839409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38401da177e4SLinus Torvalds } 38413110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3842409924e4STrond Myklebust return ret; 3843c0eae66eSBenny Halevy out_overflow: 3844c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3845c0eae66eSBenny Halevy return -EIO; 38461da177e4SLinus Torvalds } 38471da177e4SLinus Torvalds 38481da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38491da177e4SLinus Torvalds { 38508687b63aSAl Viro __be32 *p; 3851409924e4STrond Myklebust int ret = 0; 38521da177e4SLinus Torvalds 38531da177e4SLinus Torvalds *nlink = 1; 38541da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38551da177e4SLinus Torvalds return -EIO; 38561da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3857c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3858c0eae66eSBenny Halevy if (unlikely(!p)) 3859c0eae66eSBenny Halevy goto out_overflow; 3860cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38611da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3862409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38631da177e4SLinus Torvalds } 38643110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3865409924e4STrond Myklebust return ret; 3866c0eae66eSBenny Halevy out_overflow: 3867c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3868c0eae66eSBenny Halevy return -EIO; 38691da177e4SLinus Torvalds } 38701da177e4SLinus Torvalds 387180e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3872e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 38736926afd1STrond Myklebust struct nfs4_string *owner_name) 38741da177e4SLinus Torvalds { 38758687b63aSAl Viro uint32_t len; 38768687b63aSAl Viro __be32 *p; 3877409924e4STrond Myklebust int ret = 0; 38781da177e4SLinus Torvalds 3879e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 38801da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38811da177e4SLinus Torvalds return -EIO; 38821da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3883c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3884c0eae66eSBenny Halevy if (unlikely(!p)) 3885c0eae66eSBenny Halevy goto out_overflow; 3886cccddf4fSBenny Halevy len = be32_to_cpup(p); 3887c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3888c0eae66eSBenny Halevy if (unlikely(!p)) 3889c0eae66eSBenny Halevy goto out_overflow; 38906926afd1STrond Myklebust if (owner_name != NULL) { 38916926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38926926afd1STrond Myklebust if (owner_name->data != NULL) { 38936926afd1STrond Myklebust owner_name->len = len; 38946926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38956926afd1STrond Myklebust } 389680e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3897e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3898409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3899409924e4STrond Myklebust else 39001da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 39013110ff80SHarvey Harrison __func__); 39021da177e4SLinus Torvalds } else 3903fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39043110ff80SHarvey Harrison __func__, len); 39051da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 39061da177e4SLinus Torvalds } 3907e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3908409924e4STrond Myklebust return ret; 3909c0eae66eSBenny Halevy out_overflow: 3910c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3911c0eae66eSBenny Halevy return -EIO; 39121da177e4SLinus Torvalds } 39131da177e4SLinus Torvalds 391480e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3915e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 39166926afd1STrond Myklebust struct nfs4_string *group_name) 39171da177e4SLinus Torvalds { 39188687b63aSAl Viro uint32_t len; 39198687b63aSAl Viro __be32 *p; 3920409924e4STrond Myklebust int ret = 0; 39211da177e4SLinus Torvalds 3922e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 39231da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 39241da177e4SLinus Torvalds return -EIO; 39251da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3926c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3927c0eae66eSBenny Halevy if (unlikely(!p)) 3928c0eae66eSBenny Halevy goto out_overflow; 3929cccddf4fSBenny Halevy len = be32_to_cpup(p); 3930c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3931c0eae66eSBenny Halevy if (unlikely(!p)) 3932c0eae66eSBenny Halevy goto out_overflow; 39336926afd1STrond Myklebust if (group_name != NULL) { 39346926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 39356926afd1STrond Myklebust if (group_name->data != NULL) { 39366926afd1STrond Myklebust group_name->len = len; 39376926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 39386926afd1STrond Myklebust } 393980e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3940e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3941409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3942409924e4STrond Myklebust else 39431da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 39443110ff80SHarvey Harrison __func__); 39451da177e4SLinus Torvalds } else 3946fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39473110ff80SHarvey Harrison __func__, len); 39481da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 39491da177e4SLinus Torvalds } 3950e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3951409924e4STrond Myklebust return ret; 3952c0eae66eSBenny Halevy out_overflow: 3953c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3954c0eae66eSBenny Halevy return -EIO; 39551da177e4SLinus Torvalds } 39561da177e4SLinus Torvalds 39571da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39581da177e4SLinus Torvalds { 39598687b63aSAl Viro uint32_t major = 0, minor = 0; 39608687b63aSAl Viro __be32 *p; 3961409924e4STrond Myklebust int ret = 0; 39621da177e4SLinus Torvalds 39631da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39641da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39651da177e4SLinus Torvalds return -EIO; 39661da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39671da177e4SLinus Torvalds dev_t tmp; 39681da177e4SLinus Torvalds 3969c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3970c0eae66eSBenny Halevy if (unlikely(!p)) 3971c0eae66eSBenny Halevy goto out_overflow; 39726f723f77SBenny Halevy major = be32_to_cpup(p++); 3973cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39741da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39751da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39761da177e4SLinus Torvalds *rdev = tmp; 39771da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3978409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39791da177e4SLinus Torvalds } 39803110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3981409924e4STrond Myklebust return ret; 3982c0eae66eSBenny Halevy out_overflow: 3983c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3984c0eae66eSBenny Halevy return -EIO; 39851da177e4SLinus Torvalds } 39861da177e4SLinus Torvalds 39871da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39881da177e4SLinus Torvalds { 39898687b63aSAl Viro __be32 *p; 39901da177e4SLinus Torvalds int status = 0; 39911da177e4SLinus Torvalds 39921da177e4SLinus Torvalds *res = 0; 39931da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39941da177e4SLinus Torvalds return -EIO; 39951da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3996c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3997c0eae66eSBenny Halevy if (unlikely(!p)) 3998c0eae66eSBenny Halevy goto out_overflow; 3999cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40001da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 40011da177e4SLinus Torvalds } 40023110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 40031da177e4SLinus Torvalds return status; 4004c0eae66eSBenny Halevy out_overflow: 4005c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4006c0eae66eSBenny Halevy return -EIO; 40071da177e4SLinus Torvalds } 40081da177e4SLinus Torvalds 40091da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40101da177e4SLinus Torvalds { 40118687b63aSAl Viro __be32 *p; 40121da177e4SLinus Torvalds int status = 0; 40131da177e4SLinus Torvalds 40141da177e4SLinus Torvalds *res = 0; 40151da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 40161da177e4SLinus Torvalds return -EIO; 40171da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 4018c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4019c0eae66eSBenny Halevy if (unlikely(!p)) 4020c0eae66eSBenny Halevy goto out_overflow; 4021cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40221da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 40231da177e4SLinus Torvalds } 40243110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 40251da177e4SLinus Torvalds return status; 4026c0eae66eSBenny Halevy out_overflow: 4027c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4028c0eae66eSBenny Halevy return -EIO; 40291da177e4SLinus Torvalds } 40301da177e4SLinus Torvalds 40311da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40321da177e4SLinus Torvalds { 40338687b63aSAl Viro __be32 *p; 40341da177e4SLinus Torvalds int status = 0; 40351da177e4SLinus Torvalds 40361da177e4SLinus Torvalds *res = 0; 40371da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40381da177e4SLinus Torvalds return -EIO; 40391da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4040c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4041c0eae66eSBenny Halevy if (unlikely(!p)) 4042c0eae66eSBenny Halevy goto out_overflow; 4043cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40441da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40451da177e4SLinus Torvalds } 40463110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40471da177e4SLinus Torvalds return status; 4048c0eae66eSBenny Halevy out_overflow: 4049c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4050c0eae66eSBenny Halevy return -EIO; 40511da177e4SLinus Torvalds } 40521da177e4SLinus Torvalds 40531da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40541da177e4SLinus Torvalds { 40558687b63aSAl Viro __be32 *p; 4056409924e4STrond Myklebust int ret = 0; 40571da177e4SLinus Torvalds 40581da177e4SLinus Torvalds *used = 0; 40591da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40601da177e4SLinus Torvalds return -EIO; 40611da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4062c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4063c0eae66eSBenny Halevy if (unlikely(!p)) 4064c0eae66eSBenny Halevy goto out_overflow; 4065cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40661da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4067409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40681da177e4SLinus Torvalds } 40693110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40701da177e4SLinus Torvalds (unsigned long long)*used); 4071409924e4STrond Myklebust return ret; 4072c0eae66eSBenny Halevy out_overflow: 4073c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4074c0eae66eSBenny Halevy return -EIO; 40751da177e4SLinus Torvalds } 40761da177e4SLinus Torvalds 40771da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40781da177e4SLinus Torvalds { 40798687b63aSAl Viro __be32 *p; 40801da177e4SLinus Torvalds uint64_t sec; 40811da177e4SLinus Torvalds uint32_t nsec; 40821da177e4SLinus Torvalds 4083c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4084c0eae66eSBenny Halevy if (unlikely(!p)) 4085c0eae66eSBenny Halevy goto out_overflow; 40863ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4087cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40881da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40891da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40901da177e4SLinus Torvalds return 0; 4091c0eae66eSBenny Halevy out_overflow: 4092c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4093c0eae66eSBenny Halevy return -EIO; 40941da177e4SLinus Torvalds } 40951da177e4SLinus Torvalds 40961da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40971da177e4SLinus Torvalds { 40981da177e4SLinus Torvalds int status = 0; 40991da177e4SLinus Torvalds 41001da177e4SLinus Torvalds time->tv_sec = 0; 41011da177e4SLinus Torvalds time->tv_nsec = 0; 41021da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 41031da177e4SLinus Torvalds return -EIO; 41041da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 41051da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4106409924e4STrond Myklebust if (status == 0) 4107409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 41081da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 41091da177e4SLinus Torvalds } 41103110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 41111da177e4SLinus Torvalds return status; 41121da177e4SLinus Torvalds } 41131da177e4SLinus Torvalds 41141da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41151da177e4SLinus Torvalds { 41161da177e4SLinus Torvalds int status = 0; 41171da177e4SLinus Torvalds 41181da177e4SLinus Torvalds time->tv_sec = 0; 41191da177e4SLinus Torvalds time->tv_nsec = 0; 41201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 41211da177e4SLinus Torvalds return -EIO; 41221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 41231da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4124409924e4STrond Myklebust if (status == 0) 4125409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 41261da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 41271da177e4SLinus Torvalds } 41283110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 41291da177e4SLinus Torvalds return status; 41301da177e4SLinus Torvalds } 41311da177e4SLinus Torvalds 413255b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 413355b6e774SRicardo Labiaga struct timespec *time) 413455b6e774SRicardo Labiaga { 413555b6e774SRicardo Labiaga int status = 0; 413655b6e774SRicardo Labiaga 413755b6e774SRicardo Labiaga time->tv_sec = 0; 413855b6e774SRicardo Labiaga time->tv_nsec = 0; 413955b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 414055b6e774SRicardo Labiaga return -EIO; 414155b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 414255b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 414355b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 414455b6e774SRicardo Labiaga } 414555b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 414655b6e774SRicardo Labiaga (long)time->tv_nsec); 414755b6e774SRicardo Labiaga return status; 414855b6e774SRicardo Labiaga } 414955b6e774SRicardo Labiaga 4150aa9c2669SDavid Quigley static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap, 4151aa9c2669SDavid Quigley struct nfs4_label *label) 4152aa9c2669SDavid Quigley { 4153aa9c2669SDavid Quigley uint32_t pi = 0; 4154aa9c2669SDavid Quigley uint32_t lfs = 0; 4155aa9c2669SDavid Quigley __u32 len; 4156aa9c2669SDavid Quigley __be32 *p; 4157aa9c2669SDavid Quigley int status = 0; 4158aa9c2669SDavid Quigley 4159aa9c2669SDavid Quigley if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U))) 4160aa9c2669SDavid Quigley return -EIO; 4161aa9c2669SDavid Quigley if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) { 4162aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4163aa9c2669SDavid Quigley if (unlikely(!p)) 4164aa9c2669SDavid Quigley goto out_overflow; 4165aa9c2669SDavid Quigley lfs = be32_to_cpup(p++); 4166aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4167aa9c2669SDavid Quigley if (unlikely(!p)) 4168aa9c2669SDavid Quigley goto out_overflow; 4169aa9c2669SDavid Quigley pi = be32_to_cpup(p++); 4170aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4171aa9c2669SDavid Quigley if (unlikely(!p)) 4172aa9c2669SDavid Quigley goto out_overflow; 4173aa9c2669SDavid Quigley len = be32_to_cpup(p++); 4174aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, len); 4175aa9c2669SDavid Quigley if (unlikely(!p)) 4176aa9c2669SDavid Quigley goto out_overflow; 4177aa9c2669SDavid Quigley if (len < NFS4_MAXLABELLEN) { 4178aa9c2669SDavid Quigley if (label) { 4179aa9c2669SDavid Quigley memcpy(label->label, p, len); 4180aa9c2669SDavid Quigley label->len = len; 4181aa9c2669SDavid Quigley label->pi = pi; 4182aa9c2669SDavid Quigley label->lfs = lfs; 4183aa9c2669SDavid Quigley status = NFS_ATTR_FATTR_V4_SECURITY_LABEL; 4184aa9c2669SDavid Quigley } 4185aa9c2669SDavid Quigley bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL; 4186aa9c2669SDavid Quigley } else 4187aa9c2669SDavid Quigley printk(KERN_WARNING "%s: label too long (%u)!\n", 4188aa9c2669SDavid Quigley __func__, len); 4189aa9c2669SDavid Quigley } 4190aa9c2669SDavid Quigley if (label && label->label) 4191aa9c2669SDavid Quigley dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__, 4192aa9c2669SDavid Quigley (char *)label->label, label->len, label->pi, label->lfs); 4193aa9c2669SDavid Quigley return status; 4194aa9c2669SDavid Quigley 4195aa9c2669SDavid Quigley out_overflow: 4196aa9c2669SDavid Quigley print_overflow_msg(__func__, xdr); 4197aa9c2669SDavid Quigley return -EIO; 4198aa9c2669SDavid Quigley } 4199aa9c2669SDavid Quigley 42001da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 42011da177e4SLinus Torvalds { 42021da177e4SLinus Torvalds int status = 0; 42031da177e4SLinus Torvalds 42041da177e4SLinus Torvalds time->tv_sec = 0; 42051da177e4SLinus Torvalds time->tv_nsec = 0; 42061da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 42071da177e4SLinus Torvalds return -EIO; 42081da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 42091da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4210409924e4STrond Myklebust if (status == 0) 4211409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 42121da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 42131da177e4SLinus Torvalds } 42143110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 42151da177e4SLinus Torvalds return status; 42161da177e4SLinus Torvalds } 42171da177e4SLinus Torvalds 4218256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 42191da177e4SLinus Torvalds { 42201da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4221256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 42221da177e4SLinus Torvalds 42231da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4224fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4225fe82a183SChuck Lever "%u %c %u\n", 42263110ff80SHarvey Harrison __func__, 42271da177e4SLinus Torvalds attrwords << 2, 42281da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 42291da177e4SLinus Torvalds nwords << 2); 42301da177e4SLinus Torvalds return -EIO; 42311da177e4SLinus Torvalds } 42321da177e4SLinus Torvalds return 0; 42331da177e4SLinus Torvalds } 42341da177e4SLinus Torvalds 42351da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42361da177e4SLinus Torvalds { 42378687b63aSAl Viro __be32 *p; 42381da177e4SLinus Torvalds 4239c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4240c0eae66eSBenny Halevy if (unlikely(!p)) 4241c0eae66eSBenny Halevy goto out_overflow; 42426f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 42433ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4244cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 42451da177e4SLinus Torvalds return 0; 4246c0eae66eSBenny Halevy out_overflow: 4247c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4248c0eae66eSBenny Halevy return -EIO; 42491da177e4SLinus Torvalds } 42501da177e4SLinus Torvalds 42516168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 42521da177e4SLinus Torvalds { 42538687b63aSAl Viro __be32 *p; 42541da177e4SLinus Torvalds uint32_t supp, acc; 42551da177e4SLinus Torvalds int status; 42561da177e4SLinus Torvalds 42571da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 42581da177e4SLinus Torvalds if (status) 42591da177e4SLinus Torvalds return status; 4260c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4261c0eae66eSBenny Halevy if (unlikely(!p)) 4262c0eae66eSBenny Halevy goto out_overflow; 42636f723f77SBenny Halevy supp = be32_to_cpup(p++); 4264cccddf4fSBenny Halevy acc = be32_to_cpup(p); 42656168f62cSWeston Andros Adamson *supported = supp; 42666168f62cSWeston Andros Adamson *access = acc; 42671da177e4SLinus Torvalds return 0; 4268c0eae66eSBenny Halevy out_overflow: 4269c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4270c0eae66eSBenny Halevy return -EIO; 42711da177e4SLinus Torvalds } 42721da177e4SLinus Torvalds 427307d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 42741da177e4SLinus Torvalds { 42758687b63aSAl Viro __be32 *p; 427607d30434SBenny Halevy 427707d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 427807d30434SBenny Halevy if (likely(p)) { 427907d30434SBenny Halevy memcpy(buf, p, len); 428007d30434SBenny Halevy return 0; 428107d30434SBenny Halevy } 428207d30434SBenny Halevy print_overflow_msg(__func__, xdr); 428307d30434SBenny Halevy return -EIO; 428407d30434SBenny Halevy } 428507d30434SBenny Halevy 428607d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 428707d30434SBenny Halevy { 42882d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 42891da177e4SLinus Torvalds } 42901da177e4SLinus Torvalds 42911da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 42921da177e4SLinus Torvalds { 42931da177e4SLinus Torvalds int status; 42941da177e4SLinus Torvalds 42951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4296c1d51931STrond Myklebust if (status != -EIO) 4297c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 429807d30434SBenny Halevy if (!status) 429907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43001da177e4SLinus Torvalds return status; 43011da177e4SLinus Torvalds } 43021da177e4SLinus Torvalds 4303db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4304db942bbdSBenny Halevy { 4305cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 43061da177e4SLinus Torvalds } 43071da177e4SLinus Torvalds 43082f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 43092f2c63bcSTrond Myklebust { 43102f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 43112f2c63bcSTrond Myklebust } 43122f2c63bcSTrond Myklebust 43130b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 43141da177e4SLinus Torvalds { 43151da177e4SLinus Torvalds int status; 43161da177e4SLinus Torvalds 43171da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4318db942bbdSBenny Halevy if (!status) 43192f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 43201da177e4SLinus Torvalds return status; 43211da177e4SLinus Torvalds } 43221da177e4SLinus Torvalds 43231da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43241da177e4SLinus Torvalds { 43258687b63aSAl Viro __be32 *p; 43261da177e4SLinus Torvalds uint32_t bmlen; 43271da177e4SLinus Torvalds int status; 43281da177e4SLinus Torvalds 43291da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 43301da177e4SLinus Torvalds if (status) 43311da177e4SLinus Torvalds return status; 43321da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 43331da177e4SLinus Torvalds return status; 4334c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4335c0eae66eSBenny Halevy if (unlikely(!p)) 4336c0eae66eSBenny Halevy goto out_overflow; 4337cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4338c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4339c0eae66eSBenny Halevy if (likely(p)) 43401da177e4SLinus Torvalds return 0; 4341c0eae66eSBenny Halevy out_overflow: 4342c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4343c0eae66eSBenny Halevy return -EIO; 43441da177e4SLinus Torvalds } 43451da177e4SLinus Torvalds 43461da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 43471da177e4SLinus Torvalds { 4348256e48bbSTrond Myklebust unsigned int savep; 4349dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43501da177e4SLinus Torvalds int status; 43511da177e4SLinus Torvalds 43521da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43531da177e4SLinus Torvalds goto xdr_error; 43541da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43551da177e4SLinus Torvalds goto xdr_error; 43561da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43571da177e4SLinus Torvalds goto xdr_error; 43581da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 43591da177e4SLinus Torvalds goto xdr_error; 4360264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4361264e6351SChuck Lever &res->fh_expire_type)) != 0) 4362264e6351SChuck Lever goto xdr_error; 43631da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 43641da177e4SLinus Torvalds goto xdr_error; 43651da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 43661da177e4SLinus Torvalds goto xdr_error; 43671da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 43681da177e4SLinus Torvalds goto xdr_error; 43691da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43701da177e4SLinus Torvalds xdr_error: 43713110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43721da177e4SLinus Torvalds return status; 43731da177e4SLinus Torvalds } 43741da177e4SLinus Torvalds 43751da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 43761da177e4SLinus Torvalds { 4377256e48bbSTrond Myklebust unsigned int savep; 4378dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43791da177e4SLinus Torvalds int status; 43801da177e4SLinus Torvalds 43811da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43821da177e4SLinus Torvalds goto xdr_error; 43831da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43841da177e4SLinus Torvalds goto xdr_error; 43851da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43861da177e4SLinus Torvalds goto xdr_error; 43871da177e4SLinus Torvalds 43881da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 43891da177e4SLinus Torvalds goto xdr_error; 43901da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 43911da177e4SLinus Torvalds goto xdr_error; 43921da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 43931da177e4SLinus Torvalds goto xdr_error; 43941da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 43951da177e4SLinus Torvalds goto xdr_error; 43961da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 43971da177e4SLinus Torvalds goto xdr_error; 43981da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 43991da177e4SLinus Torvalds goto xdr_error; 44001da177e4SLinus Torvalds 44011da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44021da177e4SLinus Torvalds xdr_error: 44033110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44041da177e4SLinus Torvalds return status; 44051da177e4SLinus Torvalds } 44061da177e4SLinus Torvalds 44071da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 44081da177e4SLinus Torvalds { 4409256e48bbSTrond Myklebust unsigned int savep; 4410dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 44111da177e4SLinus Torvalds int status; 44121da177e4SLinus Torvalds 44131da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 44141da177e4SLinus Torvalds goto xdr_error; 44151da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 44161da177e4SLinus Torvalds goto xdr_error; 44171da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 44181da177e4SLinus Torvalds goto xdr_error; 44191da177e4SLinus Torvalds 44201da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 44211da177e4SLinus Torvalds goto xdr_error; 44221da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 44231da177e4SLinus Torvalds goto xdr_error; 44241da177e4SLinus Torvalds 44251da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44261da177e4SLinus Torvalds xdr_error: 44273110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44281da177e4SLinus Torvalds return status; 44291da177e4SLinus Torvalds } 44301da177e4SLinus Torvalds 443188034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 443288034c3dSAndy Adamson uint32_t *bitmap, 443388034c3dSAndy Adamson uint64_t *res, 443488034c3dSAndy Adamson uint32_t hint_bit) 443588034c3dSAndy Adamson { 443688034c3dSAndy Adamson __be32 *p; 443788034c3dSAndy Adamson 443888034c3dSAndy Adamson *res = 0; 443988034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 444088034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 444188034c3dSAndy Adamson if (unlikely(!p)) 444288034c3dSAndy Adamson goto out_overflow; 444388034c3dSAndy Adamson xdr_decode_hyper(p, res); 444488034c3dSAndy Adamson } 444588034c3dSAndy Adamson return 0; 444688034c3dSAndy Adamson out_overflow: 444788034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 444888034c3dSAndy Adamson return -EIO; 444988034c3dSAndy Adamson } 445088034c3dSAndy Adamson 445188034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 445288034c3dSAndy Adamson struct nfs4_threshold *res) 445388034c3dSAndy Adamson { 4454256e48bbSTrond Myklebust __be32 *p; 4455256e48bbSTrond Myklebust unsigned int savep; 445688034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 445788034c3dSAndy Adamson int status; 445888034c3dSAndy Adamson 445988034c3dSAndy Adamson /* layout type */ 446088034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 446188034c3dSAndy Adamson if (unlikely(!p)) { 446288034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 446388034c3dSAndy Adamson return -EIO; 446488034c3dSAndy Adamson } 446588034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 446688034c3dSAndy Adamson 446788034c3dSAndy Adamson /* thi_hintset bitmap */ 446888034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 446988034c3dSAndy Adamson if (status < 0) 447088034c3dSAndy Adamson goto xdr_error; 447188034c3dSAndy Adamson 447288034c3dSAndy Adamson /* thi_hintlist length */ 447388034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 447488034c3dSAndy Adamson if (status < 0) 447588034c3dSAndy Adamson goto xdr_error; 447688034c3dSAndy Adamson /* thi_hintlist */ 447788034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 447888034c3dSAndy Adamson if (status < 0) 447988034c3dSAndy Adamson goto xdr_error; 448088034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 448188034c3dSAndy Adamson if (status < 0) 448288034c3dSAndy Adamson goto xdr_error; 448388034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 448488034c3dSAndy Adamson THRESHOLD_RD_IO); 448588034c3dSAndy Adamson if (status < 0) 448688034c3dSAndy Adamson goto xdr_error; 448788034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 448888034c3dSAndy Adamson THRESHOLD_WR_IO); 448988034c3dSAndy Adamson if (status < 0) 449088034c3dSAndy Adamson goto xdr_error; 449188034c3dSAndy Adamson 449288034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 449388034c3dSAndy Adamson res->bm = bitmap[0]; 449488034c3dSAndy Adamson 449588034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 449688034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 449788034c3dSAndy Adamson res->wr_io_sz); 449888034c3dSAndy Adamson xdr_error: 449988034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 450088034c3dSAndy Adamson return status; 450188034c3dSAndy Adamson } 450288034c3dSAndy Adamson 450388034c3dSAndy Adamson /* 450488034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 450588034c3dSAndy Adamson */ 450688034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 450788034c3dSAndy Adamson uint32_t *bitmap, 450888034c3dSAndy Adamson struct nfs4_threshold *res) 450988034c3dSAndy Adamson { 451088034c3dSAndy Adamson __be32 *p; 451188034c3dSAndy Adamson int status = 0; 451288034c3dSAndy Adamson uint32_t num; 451388034c3dSAndy Adamson 451488034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 451588034c3dSAndy Adamson return -EIO; 4516029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 45171549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 45181549210fSTrond Myklebust if (unlikely(res == NULL)) 45191549210fSTrond Myklebust return -EREMOTEIO; 452088034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 452188034c3dSAndy Adamson if (unlikely(!p)) 452288034c3dSAndy Adamson goto out_overflow; 452388034c3dSAndy Adamson num = be32_to_cpup(p); 452488034c3dSAndy Adamson if (num == 0) 452588034c3dSAndy Adamson return 0; 452688034c3dSAndy Adamson if (num > 1) 452788034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 452888034c3dSAndy Adamson "drivers per filesystem not supported\n", 452988034c3dSAndy Adamson __func__); 453088034c3dSAndy Adamson 453188034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4532029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 453388034c3dSAndy Adamson } 453488034c3dSAndy Adamson return status; 453588034c3dSAndy Adamson out_overflow: 453688034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 453788034c3dSAndy Adamson return -EIO; 453888034c3dSAndy Adamson } 453988034c3dSAndy Adamson 4540ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4541ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 4542aa9c2669SDavid Quigley struct nfs4_fs_locations *fs_loc, struct nfs4_label *label, 45436926afd1STrond Myklebust const struct nfs_server *server) 45441da177e4SLinus Torvalds { 4545bca79478STrond Myklebust int status; 4546bca79478STrond Myklebust umode_t fmode = 0; 4547ae42c70aSBryan Schumaker uint32_t type; 4548ee7b75fcSTrond Myklebust int32_t err; 45491da177e4SLinus Torvalds 4550f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4551f26c7a78STrond Myklebust if (status < 0) 45521da177e4SLinus Torvalds goto xdr_error; 4553409924e4STrond Myklebust fattr->mode = 0; 4554409924e4STrond Myklebust if (status != 0) { 4555409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4556409924e4STrond Myklebust fattr->valid |= status; 4557409924e4STrond Myklebust } 45581da177e4SLinus Torvalds 4559f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4560f26c7a78STrond Myklebust if (status < 0) 45611da177e4SLinus Torvalds goto xdr_error; 4562409924e4STrond Myklebust fattr->valid |= status; 4563f26c7a78STrond Myklebust 4564f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4565f26c7a78STrond Myklebust if (status < 0) 45661da177e4SLinus Torvalds goto xdr_error; 4567409924e4STrond Myklebust fattr->valid |= status; 4568f26c7a78STrond Myklebust 4569f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4570f26c7a78STrond Myklebust if (status < 0) 45711da177e4SLinus Torvalds goto xdr_error; 4572409924e4STrond Myklebust fattr->valid |= status; 4573f26c7a78STrond Myklebust 4574ee7b75fcSTrond Myklebust err = 0; 4575ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4576ae42c70aSBryan Schumaker if (status < 0) 4577ae42c70aSBryan Schumaker goto xdr_error; 4578ae42c70aSBryan Schumaker 4579ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4580ae42c70aSBryan Schumaker if (status < 0) 4581ae42c70aSBryan Schumaker goto xdr_error; 4582ae42c70aSBryan Schumaker 4583f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4584f26c7a78STrond Myklebust if (status < 0) 45851da177e4SLinus Torvalds goto xdr_error; 4586409924e4STrond Myklebust fattr->valid |= status; 4587f26c7a78STrond Myklebust 45888b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4589f26c7a78STrond Myklebust if (status < 0) 4590683b57b4STrond Myklebust goto xdr_error; 4591409924e4STrond Myklebust fattr->valid |= status; 4592f26c7a78STrond Myklebust 4593f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4594f26c7a78STrond Myklebust if (status < 0) 45951da177e4SLinus Torvalds goto xdr_error; 4596409924e4STrond Myklebust if (status != 0) { 45971da177e4SLinus Torvalds fattr->mode |= fmode; 4598409924e4STrond Myklebust fattr->valid |= status; 4599409924e4STrond Myklebust } 4600f26c7a78STrond Myklebust 4601f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4602f26c7a78STrond Myklebust if (status < 0) 46031da177e4SLinus Torvalds goto xdr_error; 4604409924e4STrond Myklebust fattr->valid |= status; 4605f26c7a78STrond Myklebust 46066926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4607f26c7a78STrond Myklebust if (status < 0) 46081da177e4SLinus Torvalds goto xdr_error; 4609409924e4STrond Myklebust fattr->valid |= status; 4610f26c7a78STrond Myklebust 46116926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4612f26c7a78STrond Myklebust if (status < 0) 46131da177e4SLinus Torvalds goto xdr_error; 4614409924e4STrond Myklebust fattr->valid |= status; 4615f26c7a78STrond Myklebust 4616f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4617f26c7a78STrond Myklebust if (status < 0) 46181da177e4SLinus Torvalds goto xdr_error; 4619409924e4STrond Myklebust fattr->valid |= status; 4620f26c7a78STrond Myklebust 4621f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4622f26c7a78STrond Myklebust if (status < 0) 46231da177e4SLinus Torvalds goto xdr_error; 4624409924e4STrond Myklebust fattr->valid |= status; 4625f26c7a78STrond Myklebust 4626f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4627f26c7a78STrond Myklebust if (status < 0) 46281da177e4SLinus Torvalds goto xdr_error; 4629409924e4STrond Myklebust fattr->valid |= status; 4630f26c7a78STrond Myklebust 4631f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4632f26c7a78STrond Myklebust if (status < 0) 46331da177e4SLinus Torvalds goto xdr_error; 4634409924e4STrond Myklebust fattr->valid |= status; 4635f26c7a78STrond Myklebust 4636f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4637f26c7a78STrond Myklebust if (status < 0) 46381da177e4SLinus Torvalds goto xdr_error; 4639409924e4STrond Myklebust fattr->valid |= status; 4640f26c7a78STrond Myklebust 464128331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4642f26c7a78STrond Myklebust if (status < 0) 464399baf625SManoj Naik goto xdr_error; 4644409924e4STrond Myklebust fattr->valid |= status; 4645f26c7a78STrond Myklebust 464688034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 464788034c3dSAndy Adamson if (status < 0) 464888034c3dSAndy Adamson goto xdr_error; 464988034c3dSAndy Adamson 4650aa9c2669SDavid Quigley if (label) { 4651aa9c2669SDavid Quigley status = decode_attr_security_label(xdr, bitmap, label); 4652aa9c2669SDavid Quigley if (status < 0) 4653aa9c2669SDavid Quigley goto xdr_error; 4654aa9c2669SDavid Quigley fattr->valid |= status; 4655aa9c2669SDavid Quigley } 4656aa9c2669SDavid Quigley 4657ae42c70aSBryan Schumaker xdr_error: 4658ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4659ae42c70aSBryan Schumaker return status; 4660ae42c70aSBryan Schumaker } 4661ae42c70aSBryan Schumaker 4662ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 46638b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 4664aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4665ae42c70aSBryan Schumaker { 4666256e48bbSTrond Myklebust unsigned int savep; 4667ae42c70aSBryan Schumaker uint32_t attrlen, 4668dae100c2SFred Isaman bitmap[3] = {0}; 4669ae42c70aSBryan Schumaker int status; 4670ae42c70aSBryan Schumaker 4671ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4672ae42c70aSBryan Schumaker if (status < 0) 4673ae42c70aSBryan Schumaker goto xdr_error; 4674ae42c70aSBryan Schumaker 4675ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4676ae42c70aSBryan Schumaker if (status < 0) 4677ae42c70aSBryan Schumaker goto xdr_error; 4678ae42c70aSBryan Schumaker 4679ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4680ae42c70aSBryan Schumaker if (status < 0) 4681ae42c70aSBryan Schumaker goto xdr_error; 4682ae42c70aSBryan Schumaker 4683aa9c2669SDavid Quigley status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, 4684aa9c2669SDavid Quigley label, server); 4685ae42c70aSBryan Schumaker if (status < 0) 4686ae42c70aSBryan Schumaker goto xdr_error; 4687ae42c70aSBryan Schumaker 4688f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 46891da177e4SLinus Torvalds xdr_error: 46903110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 46911da177e4SLinus Torvalds return status; 46921da177e4SLinus Torvalds } 46931da177e4SLinus Torvalds 4694aa9c2669SDavid Quigley static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4695aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4696aa9c2669SDavid Quigley { 4697aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server); 4698aa9c2669SDavid Quigley } 4699aa9c2669SDavid Quigley 4700ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 47016926afd1STrond Myklebust const struct nfs_server *server) 4702ae42c70aSBryan Schumaker { 4703aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server); 4704ae42c70aSBryan Schumaker } 47051da177e4SLinus Torvalds 4706504913fbSAndy Adamson /* 4707504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4708504913fbSAndy Adamson * one layout driver per file system. 4709504913fbSAndy Adamson */ 4710504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4711504913fbSAndy Adamson uint32_t *layouttype) 4712504913fbSAndy Adamson { 4713b8a8a0ddSTrond Myklebust __be32 *p; 4714504913fbSAndy Adamson int num; 4715504913fbSAndy Adamson 4716504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4717504913fbSAndy Adamson if (unlikely(!p)) 4718504913fbSAndy Adamson goto out_overflow; 4719504913fbSAndy Adamson num = be32_to_cpup(p); 4720504913fbSAndy Adamson 4721504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4722504913fbSAndy Adamson if (num == 0) { 4723504913fbSAndy Adamson *layouttype = 0; 4724504913fbSAndy Adamson return 0; 4725504913fbSAndy Adamson } 4726504913fbSAndy Adamson if (num > 1) 4727a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4728a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4729504913fbSAndy Adamson 4730504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4731504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4732504913fbSAndy Adamson if (unlikely(!p)) 4733504913fbSAndy Adamson goto out_overflow; 4734504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4735504913fbSAndy Adamson return 0; 4736504913fbSAndy Adamson out_overflow: 4737504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4738504913fbSAndy Adamson return -EIO; 4739504913fbSAndy Adamson } 4740504913fbSAndy Adamson 4741504913fbSAndy Adamson /* 4742504913fbSAndy Adamson * The type of file system exported. 4743504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4744504913fbSAndy Adamson */ 4745504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4746504913fbSAndy Adamson uint32_t *layouttype) 4747504913fbSAndy Adamson { 4748504913fbSAndy Adamson int status = 0; 4749504913fbSAndy Adamson 4750504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4751504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4752504913fbSAndy Adamson return -EIO; 4753504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4754504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4755504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4756504913fbSAndy Adamson } else 4757504913fbSAndy Adamson *layouttype = 0; 4758504913fbSAndy Adamson return status; 4759504913fbSAndy Adamson } 4760504913fbSAndy Adamson 4761dae100c2SFred Isaman /* 4762dae100c2SFred Isaman * The prefered block size for layout directed io 4763dae100c2SFred Isaman */ 4764dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4765dae100c2SFred Isaman uint32_t *res) 4766dae100c2SFred Isaman { 4767dae100c2SFred Isaman __be32 *p; 4768dae100c2SFred Isaman 4769dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4770dae100c2SFred Isaman *res = 0; 4771dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4772dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4773dae100c2SFred Isaman if (unlikely(!p)) { 4774dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4775dae100c2SFred Isaman return -EIO; 4776dae100c2SFred Isaman } 4777dae100c2SFred Isaman *res = be32_to_cpup(p); 4778dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4779dae100c2SFred Isaman } 4780dae100c2SFred Isaman return 0; 4781dae100c2SFred Isaman } 4782dae100c2SFred Isaman 47831da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 47841da177e4SLinus Torvalds { 4785256e48bbSTrond Myklebust unsigned int savep; 4786dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 47871da177e4SLinus Torvalds int status; 47881da177e4SLinus Torvalds 47891da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 47901da177e4SLinus Torvalds goto xdr_error; 47911da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 47921da177e4SLinus Torvalds goto xdr_error; 47931da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 47941da177e4SLinus Torvalds goto xdr_error; 47951da177e4SLinus Torvalds 47961da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 47971da177e4SLinus Torvalds 47981da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 47991da177e4SLinus Torvalds goto xdr_error; 48001da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 48011da177e4SLinus Torvalds goto xdr_error; 48021da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 48031da177e4SLinus Torvalds goto xdr_error; 48041da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 48051da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 48061da177e4SLinus Torvalds goto xdr_error; 48071da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 480855b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 480955b6e774SRicardo Labiaga if (status != 0) 481055b6e774SRicardo Labiaga goto xdr_error; 4811504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4812504913fbSAndy Adamson if (status != 0) 4813504913fbSAndy Adamson goto xdr_error; 4814dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4815dae100c2SFred Isaman if (status) 4816dae100c2SFred Isaman goto xdr_error; 48171da177e4SLinus Torvalds 48181da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 48191da177e4SLinus Torvalds xdr_error: 48203110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 48211da177e4SLinus Torvalds return status; 48221da177e4SLinus Torvalds } 48231da177e4SLinus Torvalds 48241da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 48251da177e4SLinus Torvalds { 48268687b63aSAl Viro __be32 *p; 48271da177e4SLinus Torvalds uint32_t len; 48281da177e4SLinus Torvalds int status; 48291da177e4SLinus Torvalds 48309936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 48319936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 48329936781dSTrond Myklebust 48331da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 48341da177e4SLinus Torvalds if (status) 48351da177e4SLinus Torvalds return status; 48361da177e4SLinus Torvalds 4837c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4838c0eae66eSBenny Halevy if (unlikely(!p)) 4839c0eae66eSBenny Halevy goto out_overflow; 4840cccddf4fSBenny Halevy len = be32_to_cpup(p); 48411da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 48421da177e4SLinus Torvalds return -EIO; 48431da177e4SLinus Torvalds fh->size = len; 4844c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4845c0eae66eSBenny Halevy if (unlikely(!p)) 4846c0eae66eSBenny Halevy goto out_overflow; 484799398d06SBenny Halevy memcpy(fh->data, p, len); 48481da177e4SLinus Torvalds return 0; 4849c0eae66eSBenny Halevy out_overflow: 4850c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4851c0eae66eSBenny Halevy return -EIO; 48521da177e4SLinus Torvalds } 48531da177e4SLinus Torvalds 48541da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 48551da177e4SLinus Torvalds { 48561da177e4SLinus Torvalds int status; 48571da177e4SLinus Torvalds 48581da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 48591da177e4SLinus Torvalds if (status) 48601da177e4SLinus Torvalds return status; 48611da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 48621da177e4SLinus Torvalds } 48631da177e4SLinus Torvalds 48641da177e4SLinus Torvalds /* 48651da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 48661da177e4SLinus Torvalds */ 4867911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 48681da177e4SLinus Torvalds { 4869911d1aafSTrond Myklebust uint64_t offset, length, clientid; 48708687b63aSAl Viro __be32 *p; 4871911d1aafSTrond Myklebust uint32_t namelen, type; 48721da177e4SLinus Torvalds 4873babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4874c0eae66eSBenny Halevy if (unlikely(!p)) 4875c0eae66eSBenny Halevy goto out_overflow; 4876babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 48773ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4878babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4879babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4880911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4881911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4882911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4883911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4884911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4885911d1aafSTrond Myklebust if (type & 1) 4886911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4887911d1aafSTrond Myklebust fl->fl_pid = 0; 4888911d1aafSTrond Myklebust } 4889babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4890babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4891babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4892c0eae66eSBenny Halevy if (likely(p)) 48931da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4894c0eae66eSBenny Halevy out_overflow: 4895c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4896c0eae66eSBenny Halevy return -EIO; 48971da177e4SLinus Torvalds } 48981da177e4SLinus Torvalds 4899911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 49001da177e4SLinus Torvalds { 49011da177e4SLinus Torvalds int status; 49021da177e4SLinus Torvalds 49031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4904c1d51931STrond Myklebust if (status == -EIO) 4905c1d51931STrond Myklebust goto out; 49061da177e4SLinus Torvalds if (status == 0) { 490707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 490807d30434SBenny Halevy if (unlikely(status)) 490907d30434SBenny Halevy goto out; 49101da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4911c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4912c1d51931STrond Myklebust if (res->open_seqid != NULL) 4913c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4914c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4915c1d51931STrond Myklebust out: 49161da177e4SLinus Torvalds return status; 49171da177e4SLinus Torvalds } 49181da177e4SLinus Torvalds 4919911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 49201da177e4SLinus Torvalds { 49211da177e4SLinus Torvalds int status; 49221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 49231da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4924911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 49251da177e4SLinus Torvalds return status; 49261da177e4SLinus Torvalds } 49271da177e4SLinus Torvalds 4928911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 49291da177e4SLinus Torvalds { 49301da177e4SLinus Torvalds int status; 49311da177e4SLinus Torvalds 49321da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4933c1d51931STrond Myklebust if (status != -EIO) 4934c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 493507d30434SBenny Halevy if (status == 0) 493607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49371da177e4SLinus Torvalds return status; 49381da177e4SLinus Torvalds } 49391da177e4SLinus Torvalds 4940d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4941d3c7b7ccSTrond Myklebust { 4942d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4943d3c7b7ccSTrond Myklebust } 4944d3c7b7ccSTrond Myklebust 49451da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 49461da177e4SLinus Torvalds { 49471da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 49481da177e4SLinus Torvalds } 49491da177e4SLinus Torvalds 49501da177e4SLinus Torvalds /* This is too sick! */ 49511da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 49521da177e4SLinus Torvalds { 49538687b63aSAl Viro __be32 *p; 49541da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 49551da177e4SLinus Torvalds 4956c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4957c0eae66eSBenny Halevy if (unlikely(!p)) 4958c0eae66eSBenny Halevy goto out_overflow; 49596f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 49601da177e4SLinus Torvalds switch (limit_type) { 49611da177e4SLinus Torvalds case 1: 4962cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 49631da177e4SLinus Torvalds break; 49641da177e4SLinus Torvalds case 2: 49656f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4966cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 49671da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 49681da177e4SLinus Torvalds } 49691da177e4SLinus Torvalds return 0; 4970c0eae66eSBenny Halevy out_overflow: 4971c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4972c0eae66eSBenny Halevy return -EIO; 49731da177e4SLinus Torvalds } 49741da177e4SLinus Torvalds 49751da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 49761da177e4SLinus Torvalds { 49778687b63aSAl Viro __be32 *p; 49781da177e4SLinus Torvalds uint32_t delegation_type; 497907d30434SBenny Halevy int status; 49801da177e4SLinus Torvalds 4981c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4982c0eae66eSBenny Halevy if (unlikely(!p)) 4983c0eae66eSBenny Halevy goto out_overflow; 4984cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 49851da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 49861da177e4SLinus Torvalds res->delegation_type = 0; 49871da177e4SLinus Torvalds return 0; 49881da177e4SLinus Torvalds } 498907d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 499007d30434SBenny Halevy if (unlikely(status)) 499107d30434SBenny Halevy return status; 4992c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4993c0eae66eSBenny Halevy if (unlikely(!p)) 4994c0eae66eSBenny Halevy goto out_overflow; 4995cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 499605d564feSAndy Adamson 49971da177e4SLinus Torvalds switch (delegation_type) { 49981da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 49991da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 50001da177e4SLinus Torvalds break; 50011da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 50021da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 50031da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 50041da177e4SLinus Torvalds return -EIO; 50051da177e4SLinus Torvalds } 50067539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 5007c0eae66eSBenny Halevy out_overflow: 5008c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5009c0eae66eSBenny Halevy return -EIO; 50101da177e4SLinus Torvalds } 50111da177e4SLinus Torvalds 50121da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 50131da177e4SLinus Torvalds { 50148687b63aSAl Viro __be32 *p; 5015aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 50161da177e4SLinus Torvalds int status; 50171da177e4SLinus Torvalds 5018c7848f69STrond Myklebust if (!__decode_op_hdr(xdr, OP_OPEN, &status)) 5019c7848f69STrond Myklebust return status; 5020c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 5021c7848f69STrond Myklebust if (status) 5022c7848f69STrond Myklebust return status; 502307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 502407d30434SBenny Halevy if (unlikely(status)) 50251da177e4SLinus Torvalds return status; 50261da177e4SLinus Torvalds 50271da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 50281da177e4SLinus Torvalds 5029c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5030c0eae66eSBenny Halevy if (unlikely(!p)) 5031c0eae66eSBenny Halevy goto out_overflow; 50326f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 5033cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 50341da177e4SLinus Torvalds if (bmlen > 10) 50351da177e4SLinus Torvalds goto xdr_error; 50361da177e4SLinus Torvalds 5037c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5038c0eae66eSBenny Halevy if (unlikely(!p)) 5039c0eae66eSBenny Halevy goto out_overflow; 5040aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 5041aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 50426f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 5043aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 5044aa53ed54SJeff Layton res->attrset[i] = 0; 5045aa53ed54SJeff Layton 50461da177e4SLinus Torvalds return decode_delegation(xdr, res); 50471da177e4SLinus Torvalds xdr_error: 50483110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 50491da177e4SLinus Torvalds return -EIO; 5050c0eae66eSBenny Halevy out_overflow: 5051c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5052c0eae66eSBenny Halevy return -EIO; 50531da177e4SLinus Torvalds } 50541da177e4SLinus Torvalds 50551da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 50561da177e4SLinus Torvalds { 50571da177e4SLinus Torvalds int status; 50581da177e4SLinus Torvalds 50591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 5060c1d51931STrond Myklebust if (status != -EIO) 5061c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 506207d30434SBenny Halevy if (!status) 506307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 50641da177e4SLinus Torvalds return status; 50651da177e4SLinus Torvalds } 50661da177e4SLinus Torvalds 50671da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 50681da177e4SLinus Torvalds { 50691da177e4SLinus Torvalds int status; 50701da177e4SLinus Torvalds 50711da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 5072c1d51931STrond Myklebust if (status != -EIO) 5073c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 507407d30434SBenny Halevy if (!status) 507507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 50761da177e4SLinus Torvalds return status; 50771da177e4SLinus Torvalds } 50781da177e4SLinus Torvalds 50791da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 50801da177e4SLinus Torvalds { 50811da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 50821da177e4SLinus Torvalds } 50831da177e4SLinus Torvalds 50841da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 50851da177e4SLinus Torvalds { 50861da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 50871da177e4SLinus Torvalds } 50881da177e4SLinus Torvalds 50891da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 50901da177e4SLinus Torvalds { 50918687b63aSAl Viro __be32 *p; 509264bd577eSTrond Myklebust uint32_t count, eof, recvd; 50931da177e4SLinus Torvalds int status; 50941da177e4SLinus Torvalds 50951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 50961da177e4SLinus Torvalds if (status) 50971da177e4SLinus Torvalds return status; 5098c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5099c0eae66eSBenny Halevy if (unlikely(!p)) 5100c0eae66eSBenny Halevy goto out_overflow; 51016f723f77SBenny Halevy eof = be32_to_cpup(p++); 5102cccddf4fSBenny Halevy count = be32_to_cpup(p); 510364bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 51041da177e4SLinus Torvalds if (count > recvd) { 5105fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 51061da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 51071da177e4SLinus Torvalds count = recvd; 51081da177e4SLinus Torvalds eof = 0; 51091da177e4SLinus Torvalds } 51101da177e4SLinus Torvalds res->eof = eof; 51111da177e4SLinus Torvalds res->count = count; 51121da177e4SLinus Torvalds return 0; 5113c0eae66eSBenny Halevy out_overflow: 5114c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5115c0eae66eSBenny Halevy return -EIO; 51161da177e4SLinus Torvalds } 51171da177e4SLinus Torvalds 51181da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 51191da177e4SLinus Torvalds { 5120bcecff77SChuck Lever int status; 5121cd93710eSChuck Lever __be32 verf[2]; 51221da177e4SLinus Torvalds 51231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 5124db942bbdSBenny Halevy if (!status) 5125db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 5126db942bbdSBenny Halevy if (unlikely(status)) 51271da177e4SLinus Torvalds return status; 5128cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 512944109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 5130cd93710eSChuck Lever __func__, verf[0], verf[1]); 513164bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 51321da177e4SLinus Torvalds } 51331da177e4SLinus Torvalds 51341da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 51351da177e4SLinus Torvalds { 51361da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 5137bcecff77SChuck Lever u32 len, recvd; 51388687b63aSAl Viro __be32 *p; 51391da177e4SLinus Torvalds int status; 51401da177e4SLinus Torvalds 51411da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 51421da177e4SLinus Torvalds if (status) 51431da177e4SLinus Torvalds return status; 51441da177e4SLinus Torvalds 51451da177e4SLinus Torvalds /* Convert length of symlink */ 5146c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5147c0eae66eSBenny Halevy if (unlikely(!p)) 5148c0eae66eSBenny Halevy goto out_overflow; 5149cccddf4fSBenny Halevy len = be32_to_cpup(p); 51501da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 5151fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 51521da177e4SLinus Torvalds return -ENAMETOOLONG; 51531da177e4SLinus Torvalds } 515464bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 51551da177e4SLinus Torvalds if (recvd < len) { 5156fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 51571da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 51581da177e4SLinus Torvalds return -EIO; 51591da177e4SLinus Torvalds } 51601da177e4SLinus Torvalds /* 51611da177e4SLinus Torvalds * The XDR encode routine has set things up so that 51621da177e4SLinus Torvalds * the link text will be copied directly into the 51631da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 51641da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 51651da177e4SLinus Torvalds * null-termination). 51661da177e4SLinus Torvalds */ 5167b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 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_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 51751da177e4SLinus Torvalds { 51761da177e4SLinus Torvalds int status; 51771da177e4SLinus Torvalds 51781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 51791da177e4SLinus Torvalds if (status) 51801da177e4SLinus Torvalds goto out; 51811da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 51821da177e4SLinus Torvalds out: 51831da177e4SLinus Torvalds return status; 51841da177e4SLinus Torvalds } 51851da177e4SLinus Torvalds 51861da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 51871da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 51881da177e4SLinus Torvalds { 51891da177e4SLinus Torvalds int status; 51901da177e4SLinus Torvalds 51911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 51921da177e4SLinus Torvalds if (status) 51931da177e4SLinus Torvalds goto out; 51941da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 51951da177e4SLinus Torvalds goto out; 51961da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 51971da177e4SLinus Torvalds out: 51981da177e4SLinus Torvalds return status; 51991da177e4SLinus Torvalds } 52001da177e4SLinus Torvalds 52011da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 52021da177e4SLinus Torvalds { 52031da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 52041da177e4SLinus Torvalds } 52051da177e4SLinus Torvalds 520656ae19f3STrond Myklebust static int 520756ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 520856ae19f3STrond Myklebust { 520956ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 521056ae19f3STrond Myklebust } 521156ae19f3STrond Myklebust 5212029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5213bf118a34SAndy Adamson struct nfs_getaclres *res) 5214029d105eSJ. Bruce Fields { 5215256e48bbSTrond Myklebust unsigned int savep; 5216029d105eSJ. Bruce Fields uint32_t attrlen, 5217dae100c2SFred Isaman bitmap[3] = {0}; 5218029d105eSJ. Bruce Fields int status; 5219cff298c7STrond Myklebust unsigned int pg_offset; 5220029d105eSJ. Bruce Fields 5221bf118a34SAndy Adamson res->acl_len = 0; 5222029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5223029d105eSJ. Bruce Fields goto out; 52245a006899SSachin Prabhu 5225519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5226519d3959STrond Myklebust 5227cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5228cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 52295a006899SSachin Prabhu 5230029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5231029d105eSJ. Bruce Fields goto out; 5232029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5233029d105eSJ. Bruce Fields goto out; 5234029d105eSJ. Bruce Fields 5235029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5236029d105eSJ. Bruce Fields return -EIO; 5237029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5238029d105eSJ. Bruce Fields 5239bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5240bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5241bf118a34SAndy Adamson * variable length bitmaps.*/ 5242cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5243519d3959STrond Myklebust res->acl_len = attrlen; 52441f1ea6c2STrond Myklebust 52451f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 52461f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 52471f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 52481f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5249519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5250cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5251029d105eSJ. Bruce Fields } 52528c233cf9SJ. Bruce Fields } else 52538c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5254029d105eSJ. Bruce Fields 5255029d105eSJ. Bruce Fields out: 5256029d105eSJ. Bruce Fields return status; 5257029d105eSJ. Bruce Fields } 5258029d105eSJ. Bruce Fields 52591da177e4SLinus Torvalds static int 52601da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 52611da177e4SLinus Torvalds { 52621da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 52631da177e4SLinus Torvalds } 52641da177e4SLinus Torvalds 52659e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 52661da177e4SLinus Torvalds { 52678687b63aSAl Viro __be32 *p; 52681da177e4SLinus Torvalds uint32_t bmlen; 52691da177e4SLinus Torvalds int status; 52701da177e4SLinus Torvalds 52711da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 52721da177e4SLinus Torvalds if (status) 52731da177e4SLinus Torvalds return status; 5274c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5275c0eae66eSBenny Halevy if (unlikely(!p)) 5276c0eae66eSBenny Halevy goto out_overflow; 5277cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5278c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5279c0eae66eSBenny Halevy if (likely(p)) 52801da177e4SLinus Torvalds return 0; 5281c0eae66eSBenny Halevy out_overflow: 5282c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5283c0eae66eSBenny Halevy return -EIO; 52841da177e4SLinus Torvalds } 52851da177e4SLinus Torvalds 5286bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 52871da177e4SLinus Torvalds { 52888687b63aSAl Viro __be32 *p; 52891da177e4SLinus Torvalds uint32_t opnum; 52901da177e4SLinus Torvalds int32_t nfserr; 52911da177e4SLinus Torvalds 5292c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5293c0eae66eSBenny Halevy if (unlikely(!p)) 5294c0eae66eSBenny Halevy goto out_overflow; 52956f723f77SBenny Halevy opnum = be32_to_cpup(p++); 52961da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5297fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 52981da177e4SLinus Torvalds " %d\n", opnum); 52991da177e4SLinus Torvalds return -EIO; 53001da177e4SLinus Torvalds } 5301cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 53021da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5303c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5304c0eae66eSBenny Halevy if (unlikely(!p)) 5305c0eae66eSBenny Halevy goto out_overflow; 5306bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5307bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 53081da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 53091da177e4SLinus Torvalds uint32_t len; 53101da177e4SLinus Torvalds 53111da177e4SLinus Torvalds /* skip netid string */ 5312c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5313c0eae66eSBenny Halevy if (unlikely(!p)) 5314c0eae66eSBenny Halevy goto out_overflow; 5315cccddf4fSBenny Halevy len = be32_to_cpup(p); 5316c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5317c0eae66eSBenny Halevy if (unlikely(!p)) 5318c0eae66eSBenny Halevy goto out_overflow; 53191da177e4SLinus Torvalds 53201da177e4SLinus Torvalds /* skip uaddr string */ 5321c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5322c0eae66eSBenny Halevy if (unlikely(!p)) 5323c0eae66eSBenny Halevy goto out_overflow; 5324cccddf4fSBenny Halevy len = be32_to_cpup(p); 5325c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5326c0eae66eSBenny Halevy if (unlikely(!p)) 5327c0eae66eSBenny Halevy goto out_overflow; 53281da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 53291da177e4SLinus Torvalds } else 5330856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 53311da177e4SLinus Torvalds 53321da177e4SLinus Torvalds return 0; 5333c0eae66eSBenny Halevy out_overflow: 5334c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5335c0eae66eSBenny Halevy return -EIO; 53361da177e4SLinus Torvalds } 53371da177e4SLinus Torvalds 53381da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 53391da177e4SLinus Torvalds { 53401da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 53411da177e4SLinus Torvalds } 53421da177e4SLinus Torvalds 53431da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 53441da177e4SLinus Torvalds { 53458687b63aSAl Viro __be32 *p; 53461da177e4SLinus Torvalds int status; 53471da177e4SLinus Torvalds 53481da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 53491da177e4SLinus Torvalds if (status) 53501da177e4SLinus Torvalds return status; 53511da177e4SLinus Torvalds 53522f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5353c0eae66eSBenny Halevy if (unlikely(!p)) 5354c0eae66eSBenny Halevy goto out_overflow; 53556f723f77SBenny Halevy res->count = be32_to_cpup(p++); 53566f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 53572f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5358c0eae66eSBenny Halevy out_overflow: 5359c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5360c0eae66eSBenny Halevy return -EIO; 53611da177e4SLinus Torvalds } 53621da177e4SLinus Torvalds 53631da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 53641da177e4SLinus Torvalds { 53651da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 53661da177e4SLinus Torvalds } 53671da177e4SLinus Torvalds 5368fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5369fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 53705a5ea0d4SBryan Schumaker { 5371fb15b26fSChuck Lever u32 oid_len; 53725a5ea0d4SBryan Schumaker __be32 *p; 53735a5ea0d4SBryan Schumaker 53745a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 53755a5ea0d4SBryan Schumaker if (unlikely(!p)) 53765a5ea0d4SBryan Schumaker goto out_overflow; 5377fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5378fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 53795a5ea0d4SBryan Schumaker goto out_err; 53805a5ea0d4SBryan Schumaker 5381fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 53825a5ea0d4SBryan Schumaker if (unlikely(!p)) 53835a5ea0d4SBryan Schumaker goto out_overflow; 5384fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5385fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 53865a5ea0d4SBryan Schumaker 53875a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 53885a5ea0d4SBryan Schumaker if (unlikely(!p)) 53895a5ea0d4SBryan Schumaker goto out_overflow; 5390fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5391fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 53925a5ea0d4SBryan Schumaker 53935a5ea0d4SBryan Schumaker return 0; 53945a5ea0d4SBryan Schumaker 53955a5ea0d4SBryan Schumaker out_overflow: 53965a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 53975a5ea0d4SBryan Schumaker return -EIO; 53985a5ea0d4SBryan Schumaker out_err: 53995a5ea0d4SBryan Schumaker return -EINVAL; 54005a5ea0d4SBryan Schumaker } 54015a5ea0d4SBryan Schumaker 540231e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 54035a5ea0d4SBryan Schumaker { 5404fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5405fb15b26fSChuck Lever unsigned int i, num_flavors; 54065a5ea0d4SBryan Schumaker int status; 54075a5ea0d4SBryan Schumaker __be32 *p; 54085a5ea0d4SBryan Schumaker 54095a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54105a5ea0d4SBryan Schumaker if (unlikely(!p)) 54115a5ea0d4SBryan Schumaker goto out_overflow; 54125a5ea0d4SBryan Schumaker 5413c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5414c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5415c3dfc280SBryan Schumaker 5416c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 54175a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5418c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 54195a5ea0d4SBryan Schumaker break; 54205a5ea0d4SBryan Schumaker 54215a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54225a5ea0d4SBryan Schumaker if (unlikely(!p)) 54235a5ea0d4SBryan Schumaker goto out_overflow; 54245a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 54255a5ea0d4SBryan Schumaker 54265a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5427613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5428613e901eSBryan Schumaker if (status) 5429613e901eSBryan Schumaker goto out; 54305a5ea0d4SBryan Schumaker } 5431c3dfc280SBryan Schumaker res->flavors->num_flavors++; 54325a5ea0d4SBryan Schumaker } 54335a5ea0d4SBryan Schumaker 543431e4dda4SBryan Schumaker status = 0; 5435613e901eSBryan Schumaker out: 5436613e901eSBryan Schumaker return status; 54375a5ea0d4SBryan Schumaker out_overflow: 54385a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 54395a5ea0d4SBryan Schumaker return -EIO; 54405a5ea0d4SBryan Schumaker } 54415a5ea0d4SBryan Schumaker 544231e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 544331e4dda4SBryan Schumaker { 544431e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 544531e4dda4SBryan Schumaker if (status) 544631e4dda4SBryan Schumaker return status; 544731e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 544831e4dda4SBryan Schumaker } 544931e4dda4SBryan Schumaker 545099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 545131e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 545231e4dda4SBryan Schumaker { 545331e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 545431e4dda4SBryan Schumaker if (status) 545531e4dda4SBryan Schumaker return status; 545631e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 545731e4dda4SBryan Schumaker } 545831e4dda4SBryan Schumaker 54592031cd1aSWeston Andros Adamson static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 54602031cd1aSWeston Andros Adamson { 54612031cd1aSWeston Andros Adamson __be32 *p; 54622031cd1aSWeston Andros Adamson uint32_t bitmap_words; 54632031cd1aSWeston Andros Adamson unsigned int i; 54642031cd1aSWeston Andros Adamson 54652031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 54662031cd1aSWeston Andros Adamson bitmap_words = be32_to_cpup(p++); 54672031cd1aSWeston Andros Adamson if (bitmap_words > NFS4_OP_MAP_NUM_WORDS) 54682031cd1aSWeston Andros Adamson return -EIO; 54692031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4 * bitmap_words); 54702031cd1aSWeston Andros Adamson for (i = 0; i < bitmap_words; i++) 54712031cd1aSWeston Andros Adamson op_map->u.words[i] = be32_to_cpup(p++); 54722031cd1aSWeston Andros Adamson 54732031cd1aSWeston Andros Adamson return 0; 54742031cd1aSWeston Andros Adamson } 54752031cd1aSWeston Andros Adamson 547699fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 547799fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 547899fe60d0SBenny Halevy { 547999fe60d0SBenny Halevy __be32 *p; 548099fe60d0SBenny Halevy uint32_t dummy; 54812460ba57SBenny Halevy char *dummy_str; 548299fe60d0SBenny Halevy int status; 54837d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 548499fe60d0SBenny Halevy 548599fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 548699fe60d0SBenny Halevy if (status) 548799fe60d0SBenny Halevy return status; 548899fe60d0SBenny Halevy 5489c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5490c0eae66eSBenny Halevy if (unlikely(!p)) 5491c0eae66eSBenny Halevy goto out_overflow; 549232b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5493c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5494c0eae66eSBenny Halevy if (unlikely(!p)) 5495c0eae66eSBenny Halevy goto out_overflow; 549632b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 549732b01310STrond Myklebust res->flags = be32_to_cpup(p++); 549899fe60d0SBenny Halevy 54992031cd1aSWeston Andros Adamson res->state_protect.how = be32_to_cpup(p); 55002031cd1aSWeston Andros Adamson switch (res->state_protect.how) { 55012031cd1aSWeston Andros Adamson case SP4_NONE: 55022031cd1aSWeston Andros Adamson break; 55032031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 55042031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.enforce); 55052031cd1aSWeston Andros Adamson if (status) 55062031cd1aSWeston Andros Adamson return status; 55072031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.allow); 55082031cd1aSWeston Andros Adamson if (status) 55092031cd1aSWeston Andros Adamson return status; 55102031cd1aSWeston Andros Adamson break; 55112031cd1aSWeston Andros Adamson default: 55122031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 551399fe60d0SBenny Halevy return -EIO; 55142031cd1aSWeston Andros Adamson } 551599fe60d0SBenny Halevy 5516acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5517c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5518c0eae66eSBenny Halevy if (unlikely(!p)) 5519c0eae66eSBenny Halevy goto out_overflow; 5520acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 552199fe60d0SBenny Halevy 5522acdeb69dSChuck Lever /* server_owner4.so_major_id */ 55232460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55242460ba57SBenny Halevy if (unlikely(status)) 55252460ba57SBenny Halevy return status; 552678fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 552778fe0f41SWeston Andros Adamson return -EIO; 5528acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5529acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 553078fe0f41SWeston Andros Adamson 5531acdeb69dSChuck Lever /* server_scope4 */ 5532acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5533acdeb69dSChuck Lever if (unlikely(status)) 5534acdeb69dSChuck Lever return status; 5535acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5536acdeb69dSChuck Lever return -EIO; 553778fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 553878fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 553978fe0f41SWeston Andros Adamson 55407d2ed9acSWeston Andros Adamson /* Implementation Id */ 55417d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 55427d2ed9acSWeston Andros Adamson if (unlikely(!p)) 55437d2ed9acSWeston Andros Adamson goto out_overflow; 55447d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 55457d2ed9acSWeston Andros Adamson 55467d2ed9acSWeston Andros Adamson if (impl_id_count) { 55477d2ed9acSWeston Andros Adamson /* nii_domain */ 55482460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55492460ba57SBenny Halevy if (unlikely(status)) 55502460ba57SBenny Halevy return status; 55517d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 55527d2ed9acSWeston Andros Adamson return -EIO; 55537d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 555499fe60d0SBenny Halevy 55557d2ed9acSWeston Andros Adamson /* nii_name */ 55567d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55577d2ed9acSWeston Andros Adamson if (unlikely(status)) 55587d2ed9acSWeston Andros Adamson return status; 55597d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 55607d2ed9acSWeston Andros Adamson return -EIO; 55617d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 55627d2ed9acSWeston Andros Adamson 55637d2ed9acSWeston Andros Adamson /* nii_date */ 55647d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 55657d2ed9acSWeston Andros Adamson if (unlikely(!p)) 55667d2ed9acSWeston Andros Adamson goto out_overflow; 55677d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 55687d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 55697d2ed9acSWeston Andros Adamson 55707d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 55717d2ed9acSWeston Andros Adamson } 557299fe60d0SBenny Halevy return 0; 5573c0eae66eSBenny Halevy out_overflow: 5574c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5575c0eae66eSBenny Halevy return -EIO; 557699fe60d0SBenny Halevy } 5577fc931582SAndy Adamson 5578fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5579fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5580fc931582SAndy Adamson { 5581fc931582SAndy Adamson __be32 *p; 5582c9c30dd5SBenny Halevy u32 nr_attrs, val; 5583fc931582SAndy Adamson 5584c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5585c0eae66eSBenny Halevy if (unlikely(!p)) 5586c0eae66eSBenny Halevy goto out_overflow; 5587c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5588c9c30dd5SBenny Halevy if (val) 5589c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 55906f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 55916f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 55926f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 55936f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 55946f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5595cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5596fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5597a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5598a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5599fc931582SAndy Adamson return -EINVAL; 5600fc931582SAndy Adamson } 5601c0eae66eSBenny Halevy if (nr_attrs == 1) { 5602c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5603c0eae66eSBenny Halevy if (unlikely(!p)) 5604c0eae66eSBenny Halevy goto out_overflow; 5605c0eae66eSBenny Halevy } 5606fc931582SAndy Adamson return 0; 5607c0eae66eSBenny Halevy out_overflow: 5608c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5609c0eae66eSBenny Halevy return -EIO; 5610fc931582SAndy Adamson } 5611fc931582SAndy Adamson 5612e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5613e78291e4SBenny Halevy { 5614e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5615fc931582SAndy Adamson } 5616fc931582SAndy Adamson 56177c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 56187c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 56197c44f1aeSWeston Andros Adamson { 56207c44f1aeSWeston Andros Adamson __be32 *p; 56217c44f1aeSWeston Andros Adamson int status; 56227c44f1aeSWeston Andros Adamson 56237c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 56247c44f1aeSWeston Andros Adamson if (!status) 56257c44f1aeSWeston Andros Adamson status = decode_sessionid(xdr, &res->session->sess_id); 56267c44f1aeSWeston Andros Adamson if (unlikely(status)) 56277c44f1aeSWeston Andros Adamson return status; 56287c44f1aeSWeston Andros Adamson 56297c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 56307c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 56317c44f1aeSWeston Andros Adamson if (unlikely(!p)) 56327c44f1aeSWeston Andros Adamson goto out_overflow; 56337c44f1aeSWeston Andros Adamson 56347c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 56357c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 56367c44f1aeSWeston Andros Adamson return -EIO; 56377c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 56387c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 56397c44f1aeSWeston Andros Adamson else 56407c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 56417c44f1aeSWeston Andros Adamson 56427c44f1aeSWeston Andros Adamson return 0; 56437c44f1aeSWeston Andros Adamson out_overflow: 56447c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 56457c44f1aeSWeston Andros Adamson return -EIO; 56467c44f1aeSWeston Andros Adamson } 56477c44f1aeSWeston Andros Adamson 5648fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5649fc931582SAndy Adamson struct nfs41_create_session_res *res) 5650fc931582SAndy Adamson { 5651fc931582SAndy Adamson __be32 *p; 5652fc931582SAndy Adamson int status; 5653fc931582SAndy Adamson struct nfs_client *clp = res->client; 5654fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5655fc931582SAndy Adamson 5656fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5657e78291e4SBenny Halevy if (!status) 5658e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5659e78291e4SBenny Halevy if (unlikely(status)) 5660fc931582SAndy Adamson return status; 5661fc931582SAndy Adamson 5662fc931582SAndy Adamson /* seqid, flags */ 5663c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5664c0eae66eSBenny Halevy if (unlikely(!p)) 5665c0eae66eSBenny Halevy goto out_overflow; 56666f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5667cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5668fc931582SAndy Adamson 5669fc931582SAndy Adamson /* Channel attributes */ 5670fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5671fc931582SAndy Adamson if (!status) 5672fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5673fc931582SAndy Adamson return status; 5674c0eae66eSBenny Halevy out_overflow: 5675c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5676c0eae66eSBenny Halevy return -EIO; 5677fc931582SAndy Adamson } 56780f3e66c6SAndy Adamson 56790f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 56800f3e66c6SAndy Adamson { 56810f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 56820f3e66c6SAndy Adamson } 568318019753SRicardo Labiaga 568466245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 568566245539STrond Myklebust { 568666245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 568766245539STrond Myklebust } 568866245539STrond Myklebust 568918019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 569018019753SRicardo Labiaga { 569118019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 569218019753SRicardo Labiaga } 569399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 569499fe60d0SBenny Halevy 56959b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 56969b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 56979b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 56989b7b9fccSAndy Adamson { 56999b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5700e3725ec0STrond Myklebust struct nfs4_session *session; 5701fc01cea9SAndy Adamson struct nfs4_sessionid id; 5702fc01cea9SAndy Adamson u32 dummy; 5703fc01cea9SAndy Adamson int status; 5704fc01cea9SAndy Adamson __be32 *p; 5705fc01cea9SAndy Adamson 5706e3725ec0STrond Myklebust if (res->sr_slot == NULL) 57079b7b9fccSAndy Adamson return 0; 57083bd2384aSChuck Lever if (!res->sr_slot->table->session) 57093bd2384aSChuck Lever return 0; 57109b7b9fccSAndy Adamson 5711fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5712e78291e4SBenny Halevy if (!status) 5713e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5714e78291e4SBenny Halevy if (unlikely(status)) 5715fc01cea9SAndy Adamson goto out_err; 57169b7b9fccSAndy Adamson 5717fc01cea9SAndy Adamson /* 5718fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5719fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5720fc01cea9SAndy Adamson */ 5721fdcb4577STrond Myklebust status = -EREMOTEIO; 5722e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5723fc01cea9SAndy Adamson 5724e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5725fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5726fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5727fc01cea9SAndy Adamson goto out_err; 5728fc01cea9SAndy Adamson } 5729e78291e4SBenny Halevy 5730c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5731c0eae66eSBenny Halevy if (unlikely(!p)) 5732c0eae66eSBenny Halevy goto out_overflow; 5733e78291e4SBenny Halevy 5734fc01cea9SAndy Adamson /* seqid */ 57356f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5736dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5737fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5738fc01cea9SAndy Adamson goto out_err; 5739fc01cea9SAndy Adamson } 5740fc01cea9SAndy Adamson /* slot id */ 57416f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5742df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5743fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5744fc01cea9SAndy Adamson goto out_err; 5745fc01cea9SAndy Adamson } 5746da0507b7STrond Myklebust /* highest slot id */ 5747da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5748464ee9f9STrond Myklebust /* target highest slot id */ 5749464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 57500629e370SAlexandros Batsakis /* result flags */ 57510629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5752fc01cea9SAndy Adamson status = 0; 5753fc01cea9SAndy Adamson out_err: 5754fc01cea9SAndy Adamson res->sr_status = status; 5755fc01cea9SAndy Adamson return status; 5756c0eae66eSBenny Halevy out_overflow: 5757c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5758c0eae66eSBenny Halevy status = -EIO; 5759c0eae66eSBenny Halevy goto out_err; 5760fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 57619b7b9fccSAndy Adamson return 0; 5762fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 57639b7b9fccSAndy Adamson } 57649b7b9fccSAndy Adamson 5765b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 57667f11d8d3SAndy Adamson /* 57677f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 57687f11d8d3SAndy Adamson */ 57697f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 57707f11d8d3SAndy Adamson struct pnfs_devicelist *res) 57717f11d8d3SAndy Adamson { 57727f11d8d3SAndy Adamson __be32 *p; 57737f11d8d3SAndy Adamson int status, i; 577498d94524STrond Myklebust nfs4_verifier verftemp; 57757f11d8d3SAndy Adamson 57767f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 57777f11d8d3SAndy Adamson if (status) 57787f11d8d3SAndy Adamson return status; 57797f11d8d3SAndy Adamson 57807f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 57817f11d8d3SAndy Adamson if (unlikely(!p)) 57827f11d8d3SAndy Adamson goto out_overflow; 57837f11d8d3SAndy Adamson 57847f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 57857f11d8d3SAndy Adamson p += 2; 57867f11d8d3SAndy Adamson 57877f11d8d3SAndy Adamson /* Read verifier */ 578898d94524STrond Myklebust p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE); 57897f11d8d3SAndy Adamson 57907f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 57917f11d8d3SAndy Adamson 57927f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 57937f11d8d3SAndy Adamson 57947f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5795a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 57967f11d8d3SAndy Adamson __func__, res->num_devs); 57977f11d8d3SAndy Adamson return -EIO; 57987f11d8d3SAndy Adamson } 57997f11d8d3SAndy Adamson 58007f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 58017f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 58027f11d8d3SAndy Adamson if (unlikely(!p)) 58037f11d8d3SAndy Adamson goto out_overflow; 58047f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 58057f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 58067f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 58077f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 58087f11d8d3SAndy Adamson return 0; 58097f11d8d3SAndy Adamson out_overflow: 58107f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 58117f11d8d3SAndy Adamson return -EIO; 58127f11d8d3SAndy Adamson } 5813b1f69b75SAndy Adamson 5814b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5815b1f69b75SAndy Adamson struct pnfs_device *pdev) 5816b1f69b75SAndy Adamson { 5817b1f69b75SAndy Adamson __be32 *p; 5818b1f69b75SAndy Adamson uint32_t len, type; 5819b1f69b75SAndy Adamson int status; 5820b1f69b75SAndy Adamson 5821b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5822b1f69b75SAndy Adamson if (status) { 5823b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5824b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5825b1f69b75SAndy Adamson if (unlikely(!p)) 5826b1f69b75SAndy Adamson goto out_overflow; 5827b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5828b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5829b1f69b75SAndy Adamson __func__, pdev->mincount); 5830b1f69b75SAndy Adamson } 5831b1f69b75SAndy Adamson return status; 5832b1f69b75SAndy Adamson } 5833b1f69b75SAndy Adamson 5834b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5835b1f69b75SAndy Adamson if (unlikely(!p)) 5836b1f69b75SAndy Adamson goto out_overflow; 5837b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5838b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5839b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5840b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5841b1f69b75SAndy Adamson return -EINVAL; 5842b1f69b75SAndy Adamson } 5843b1f69b75SAndy Adamson /* 5844b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5845b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5846b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5847b1f69b75SAndy Adamson */ 5848b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 584913fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 585013fe4ba1STrond Myklebust goto out_overflow; 5851b1f69b75SAndy Adamson 5852b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5853b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5854b1f69b75SAndy Adamson if (unlikely(!p)) 5855b1f69b75SAndy Adamson goto out_overflow; 5856b1f69b75SAndy Adamson len = be32_to_cpup(p); 5857b1f69b75SAndy Adamson if (len) { 5858ead00597SChuck Lever uint32_t i; 5859b1f69b75SAndy Adamson 5860b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5861b1f69b75SAndy Adamson if (unlikely(!p)) 5862b1f69b75SAndy Adamson goto out_overflow; 5863b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5864b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5865b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5866b1f69b75SAndy Adamson __func__); 5867b1f69b75SAndy Adamson return -EIO; 5868b1f69b75SAndy Adamson } 5869b1f69b75SAndy Adamson } 5870b1f69b75SAndy Adamson } 5871b1f69b75SAndy Adamson return 0; 5872b1f69b75SAndy Adamson out_overflow: 5873b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5874b1f69b75SAndy Adamson return -EIO; 5875b1f69b75SAndy Adamson } 5876b1f69b75SAndy Adamson 5877b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5878b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5879b1f69b75SAndy Adamson { 5880b1f69b75SAndy Adamson __be32 *p; 5881b1f69b75SAndy Adamson int status; 5882b1f69b75SAndy Adamson u32 layout_count; 588364bd577eSTrond Myklebust u32 recvd; 5884b1f69b75SAndy Adamson 5885b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5886b1f69b75SAndy Adamson if (status) 5887b1f69b75SAndy Adamson return status; 5888ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5889b1f69b75SAndy Adamson if (unlikely(!p)) 5890b1f69b75SAndy Adamson goto out_overflow; 5891ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5892ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5893ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5894ea9d23f5STrond Myklebust if (unlikely(!p)) 5895ea9d23f5STrond Myklebust goto out_overflow; 5896b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5897b1f69b75SAndy Adamson if (!layout_count) { 5898b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5899b1f69b75SAndy Adamson __func__); 5900b1f69b75SAndy Adamson return -EINVAL; 5901b1f69b75SAndy Adamson } 5902b1f69b75SAndy Adamson 590335124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5904b1f69b75SAndy Adamson if (unlikely(!p)) 5905b1f69b75SAndy Adamson goto out_overflow; 5906b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5907b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5908b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5909b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 591035124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5911b1f69b75SAndy Adamson 5912b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5913b1f69b75SAndy Adamson __func__, 5914b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5915b1f69b75SAndy Adamson (unsigned long)res->range.length, 5916b1f69b75SAndy Adamson res->range.iomode, 5917b1f69b75SAndy Adamson res->type, 591835124a09SWeston Andros Adamson res->layoutp->len); 5919b1f69b75SAndy Adamson 592064bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 592135124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 592235124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 592335124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 592435124a09SWeston Andros Adamson res->layoutp->len, recvd); 592535124a09SWeston Andros Adamson return -EINVAL; 592635124a09SWeston Andros Adamson } 592735124a09SWeston Andros Adamson 5928b1f69b75SAndy Adamson if (layout_count > 1) { 5929b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5930b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5931b1f69b75SAndy Adamson * the client may see a response that is less than the 5932b1f69b75SAndy Adamson * minimum it requested. 5933b1f69b75SAndy Adamson */ 5934b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5935b1f69b75SAndy Adamson __func__, layout_count); 5936b1f69b75SAndy Adamson } 5937b1f69b75SAndy Adamson 5938b1f69b75SAndy Adamson return 0; 5939b1f69b75SAndy Adamson out_overflow: 5940b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5941b1f69b75SAndy Adamson return -EIO; 5942b1f69b75SAndy Adamson } 5943863a3c6cSAndy Adamson 5944cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5945cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5946cbe82603SBenny Halevy { 5947cbe82603SBenny Halevy __be32 *p; 5948cbe82603SBenny Halevy int status; 5949cbe82603SBenny Halevy 5950cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5951cbe82603SBenny Halevy if (status) 5952cbe82603SBenny Halevy return status; 5953cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5954cbe82603SBenny Halevy if (unlikely(!p)) 5955cbe82603SBenny Halevy goto out_overflow; 5956cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5957cbe82603SBenny Halevy if (res->lrs_present) 5958cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5959cbe82603SBenny Halevy return status; 5960cbe82603SBenny Halevy out_overflow: 5961cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5962cbe82603SBenny Halevy return -EIO; 5963cbe82603SBenny Halevy } 5964cbe82603SBenny Halevy 5965863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5966863a3c6cSAndy Adamson struct rpc_rqst *req, 5967863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5968863a3c6cSAndy Adamson { 5969863a3c6cSAndy Adamson __be32 *p; 5970863a3c6cSAndy Adamson __u32 sizechanged; 5971863a3c6cSAndy Adamson int status; 5972863a3c6cSAndy Adamson 5973863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5974db29c089SAndy Adamson res->status = status; 5975863a3c6cSAndy Adamson if (status) 5976863a3c6cSAndy Adamson return status; 5977863a3c6cSAndy Adamson 5978863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5979863a3c6cSAndy Adamson if (unlikely(!p)) 5980863a3c6cSAndy Adamson goto out_overflow; 5981863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5982863a3c6cSAndy Adamson 5983863a3c6cSAndy Adamson if (sizechanged) { 5984863a3c6cSAndy Adamson /* throw away new size */ 5985863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5986863a3c6cSAndy Adamson if (unlikely(!p)) 5987863a3c6cSAndy Adamson goto out_overflow; 5988863a3c6cSAndy Adamson } 5989863a3c6cSAndy Adamson return 0; 5990863a3c6cSAndy Adamson out_overflow: 5991863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5992863a3c6cSAndy Adamson return -EIO; 5993863a3c6cSAndy Adamson } 59947d974794SBryan Schumaker 59957d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 59967d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 59977d974794SBryan Schumaker { 59987d974794SBryan Schumaker __be32 *p; 59997d974794SBryan Schumaker int status; 60007d974794SBryan Schumaker int num_res; 60017d974794SBryan Schumaker 60027d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 60037d974794SBryan Schumaker if (status) 60047d974794SBryan Schumaker return status; 60057d974794SBryan Schumaker 60067d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60077d974794SBryan Schumaker if (unlikely(!p)) 60087d974794SBryan Schumaker goto out_overflow; 60097d974794SBryan Schumaker num_res = be32_to_cpup(p++); 60107d974794SBryan Schumaker if (num_res != 1) 60117d974794SBryan Schumaker goto out; 60127d974794SBryan Schumaker 60137d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60147d974794SBryan Schumaker if (unlikely(!p)) 60157d974794SBryan Schumaker goto out_overflow; 60167d974794SBryan Schumaker res->status = be32_to_cpup(p++); 60171cab0652SBryan Schumaker 60181cab0652SBryan Schumaker return status; 60197d974794SBryan Schumaker out_overflow: 60207d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 60217d974794SBryan Schumaker out: 60227d974794SBryan Schumaker return -EIO; 60237d974794SBryan Schumaker } 60249aeda35fSBryan Schumaker 60259aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 60269aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 60279aeda35fSBryan Schumaker { 60289f79fb48SAndy Adamson res->status = decode_op_hdr(xdr, OP_FREE_STATEID); 60299aeda35fSBryan Schumaker return res->status; 60309aeda35fSBryan Schumaker } 6031b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 6032b1f69b75SAndy Adamson 60331da177e4SLinus Torvalds /* 603449c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 603549c2559eSBenny Halevy */ 603649c2559eSBenny Halevy 603749c2559eSBenny Halevy /* 60381da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 60391da177e4SLinus Torvalds */ 6040bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 6041bf269551SChuck Lever struct xdr_stream *xdr, 6042bf269551SChuck Lever struct nfs_closeres *res) 60431da177e4SLinus Torvalds { 60441da177e4SLinus Torvalds struct compound_hdr hdr; 60451da177e4SLinus Torvalds int status; 60461da177e4SLinus Torvalds 6047bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60481da177e4SLinus Torvalds if (status) 60491da177e4SLinus Torvalds goto out; 6050bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60519b7b9fccSAndy Adamson if (status) 60529b7b9fccSAndy Adamson goto out; 6053bf269551SChuck Lever status = decode_putfh(xdr); 60541da177e4SLinus Torvalds if (status) 60551da177e4SLinus Torvalds goto out; 6056bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 6057516a6af6STrond Myklebust if (status != 0) 6058516a6af6STrond Myklebust goto out; 60596926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60601da177e4SLinus Torvalds out: 60611da177e4SLinus Torvalds return status; 60621da177e4SLinus Torvalds } 60631da177e4SLinus Torvalds 60641da177e4SLinus Torvalds /* 60651da177e4SLinus Torvalds * Decode ACCESS response 60661da177e4SLinus Torvalds */ 6067bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6068bf269551SChuck Lever struct nfs4_accessres *res) 60691da177e4SLinus Torvalds { 60701da177e4SLinus Torvalds struct compound_hdr hdr; 60711da177e4SLinus Torvalds int status; 60721da177e4SLinus Torvalds 6073bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60749b7b9fccSAndy Adamson if (status) 60759b7b9fccSAndy Adamson goto out; 6076bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60779b7b9fccSAndy Adamson if (status) 60781da177e4SLinus Torvalds goto out; 6079bf269551SChuck Lever status = decode_putfh(xdr); 608076b32999STrond Myklebust if (status != 0) 608176b32999STrond Myklebust goto out; 60826168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 608376b32999STrond Myklebust if (status != 0) 608476b32999STrond Myklebust goto out; 60856926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60861da177e4SLinus Torvalds out: 60871da177e4SLinus Torvalds return status; 60881da177e4SLinus Torvalds } 60891da177e4SLinus Torvalds 60901da177e4SLinus Torvalds /* 60911da177e4SLinus Torvalds * Decode LOOKUP response 60921da177e4SLinus Torvalds */ 6093bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6094bf269551SChuck Lever struct nfs4_lookup_res *res) 60951da177e4SLinus Torvalds { 60961da177e4SLinus Torvalds struct compound_hdr hdr; 60971da177e4SLinus Torvalds int status; 60981da177e4SLinus Torvalds 6099bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61009b7b9fccSAndy Adamson if (status) 61019b7b9fccSAndy Adamson goto out; 6102bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61039b7b9fccSAndy Adamson if (status) 61041da177e4SLinus Torvalds goto out; 6105bf269551SChuck Lever status = decode_putfh(xdr); 6106bf269551SChuck Lever if (status) 61071da177e4SLinus Torvalds goto out; 6108bf269551SChuck Lever status = decode_lookup(xdr); 6109bf269551SChuck Lever if (status) 61101da177e4SLinus Torvalds goto out; 6111bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6112bf269551SChuck Lever if (status) 61131da177e4SLinus Torvalds goto out; 6114aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 61151da177e4SLinus Torvalds out: 61161da177e4SLinus Torvalds return status; 61171da177e4SLinus Torvalds } 61181da177e4SLinus Torvalds 61191da177e4SLinus Torvalds /* 61201da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 61211da177e4SLinus Torvalds */ 6122bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 6123bf269551SChuck Lever struct xdr_stream *xdr, 6124bf269551SChuck Lever struct nfs4_lookup_res *res) 61251da177e4SLinus Torvalds { 61261da177e4SLinus Torvalds struct compound_hdr hdr; 61271da177e4SLinus Torvalds int status; 61281da177e4SLinus Torvalds 6129bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61309b7b9fccSAndy Adamson if (status) 61319b7b9fccSAndy Adamson goto out; 6132bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61339b7b9fccSAndy Adamson if (status) 61341da177e4SLinus Torvalds goto out; 6135bf269551SChuck Lever status = decode_putrootfh(xdr); 6136bf269551SChuck Lever if (status) 61371da177e4SLinus Torvalds goto out; 6138bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6139bf269551SChuck Lever if (status == 0) 6140aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, 6141aa9c2669SDavid Quigley res->label, res->server); 61421da177e4SLinus Torvalds out: 61431da177e4SLinus Torvalds return status; 61441da177e4SLinus Torvalds } 61451da177e4SLinus Torvalds 61461da177e4SLinus Torvalds /* 61471da177e4SLinus Torvalds * Decode REMOVE response 61481da177e4SLinus Torvalds */ 6149bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6150bf269551SChuck Lever struct nfs_removeres *res) 61511da177e4SLinus Torvalds { 61521da177e4SLinus Torvalds struct compound_hdr hdr; 61531da177e4SLinus Torvalds int status; 61541da177e4SLinus Torvalds 6155bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61569b7b9fccSAndy Adamson if (status) 61579b7b9fccSAndy Adamson goto out; 6158bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61599b7b9fccSAndy Adamson if (status) 61601da177e4SLinus Torvalds goto out; 6161bf269551SChuck Lever status = decode_putfh(xdr); 6162bf269551SChuck Lever if (status) 616316e42959STrond Myklebust goto out; 6164bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 61651da177e4SLinus Torvalds out: 61661da177e4SLinus Torvalds return status; 61671da177e4SLinus Torvalds } 61681da177e4SLinus Torvalds 61691da177e4SLinus Torvalds /* 61701da177e4SLinus Torvalds * Decode RENAME response 61711da177e4SLinus Torvalds */ 6172bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6173bf269551SChuck Lever struct nfs_renameres *res) 61741da177e4SLinus Torvalds { 61751da177e4SLinus Torvalds struct compound_hdr hdr; 61761da177e4SLinus Torvalds int status; 61771da177e4SLinus Torvalds 6178bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61799b7b9fccSAndy Adamson if (status) 61809b7b9fccSAndy Adamson goto out; 6181bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61829b7b9fccSAndy Adamson if (status) 61831da177e4SLinus Torvalds goto out; 6184bf269551SChuck Lever status = decode_putfh(xdr); 6185bf269551SChuck Lever if (status) 61861da177e4SLinus Torvalds goto out; 6187bf269551SChuck Lever status = decode_savefh(xdr); 6188bf269551SChuck Lever if (status) 61891da177e4SLinus Torvalds goto out; 6190bf269551SChuck Lever status = decode_putfh(xdr); 6191bf269551SChuck Lever if (status) 61921da177e4SLinus Torvalds goto out; 6193bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 61941da177e4SLinus Torvalds out: 61951da177e4SLinus Torvalds return status; 61961da177e4SLinus Torvalds } 61971da177e4SLinus Torvalds 61981da177e4SLinus Torvalds /* 61991da177e4SLinus Torvalds * Decode LINK response 62001da177e4SLinus Torvalds */ 6201bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6202bf269551SChuck Lever struct nfs4_link_res *res) 62031da177e4SLinus Torvalds { 62041da177e4SLinus Torvalds struct compound_hdr hdr; 62051da177e4SLinus Torvalds int status; 62061da177e4SLinus Torvalds 6207bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62089b7b9fccSAndy Adamson if (status) 62099b7b9fccSAndy Adamson goto out; 6210bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62119b7b9fccSAndy Adamson if (status) 62121da177e4SLinus Torvalds goto out; 6213bf269551SChuck Lever status = decode_putfh(xdr); 6214bf269551SChuck Lever if (status) 62151da177e4SLinus Torvalds goto out; 6216bf269551SChuck Lever status = decode_savefh(xdr); 6217bf269551SChuck Lever if (status) 62181da177e4SLinus Torvalds goto out; 6219bf269551SChuck Lever status = decode_putfh(xdr); 6220bf269551SChuck Lever if (status) 62211da177e4SLinus Torvalds goto out; 6222bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6223bf269551SChuck Lever if (status) 622491ba2eeeSTrond Myklebust goto out; 622591ba2eeeSTrond Myklebust /* 622691ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 622791ba2eeeSTrond Myklebust * filehandle. 622891ba2eeeSTrond Myklebust */ 6229bf269551SChuck Lever status = decode_restorefh(xdr); 6230bf269551SChuck Lever if (status) 623191ba2eeeSTrond Myklebust goto out; 6232aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62331da177e4SLinus Torvalds out: 62341da177e4SLinus Torvalds return status; 62351da177e4SLinus Torvalds } 62361da177e4SLinus Torvalds 62371da177e4SLinus Torvalds /* 62381da177e4SLinus Torvalds * Decode CREATE response 62391da177e4SLinus Torvalds */ 6240bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6241bf269551SChuck Lever struct nfs4_create_res *res) 62421da177e4SLinus Torvalds { 62431da177e4SLinus Torvalds struct compound_hdr hdr; 62441da177e4SLinus Torvalds int status; 62451da177e4SLinus Torvalds 6246bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62479b7b9fccSAndy Adamson if (status) 62489b7b9fccSAndy Adamson goto out; 6249bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62509b7b9fccSAndy Adamson if (status) 62511da177e4SLinus Torvalds goto out; 6252bf269551SChuck Lever status = decode_putfh(xdr); 6253bf269551SChuck Lever if (status) 62541da177e4SLinus Torvalds goto out; 6255bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6256bf269551SChuck Lever if (status) 62571da177e4SLinus Torvalds goto out; 6258bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6259bf269551SChuck Lever if (status) 62601da177e4SLinus Torvalds goto out; 6261aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62621da177e4SLinus Torvalds out: 62631da177e4SLinus Torvalds return status; 62641da177e4SLinus Torvalds } 62651da177e4SLinus Torvalds 62661da177e4SLinus Torvalds /* 62671da177e4SLinus Torvalds * Decode SYMLINK response 62681da177e4SLinus Torvalds */ 6269bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6270bf269551SChuck Lever struct nfs4_create_res *res) 62711da177e4SLinus Torvalds { 6272bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 62731da177e4SLinus Torvalds } 62741da177e4SLinus Torvalds 62751da177e4SLinus Torvalds /* 62761da177e4SLinus Torvalds * Decode GETATTR response 62771da177e4SLinus Torvalds */ 6278bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6279bf269551SChuck Lever struct nfs4_getattr_res *res) 62801da177e4SLinus Torvalds { 62811da177e4SLinus Torvalds struct compound_hdr hdr; 62821da177e4SLinus Torvalds int status; 62831da177e4SLinus Torvalds 6284bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62851da177e4SLinus Torvalds if (status) 62861da177e4SLinus Torvalds goto out; 6287bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62889b7b9fccSAndy Adamson if (status) 62899b7b9fccSAndy Adamson goto out; 6290bf269551SChuck Lever status = decode_putfh(xdr); 62911da177e4SLinus Torvalds if (status) 62921da177e4SLinus Torvalds goto out; 6293aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62941da177e4SLinus Torvalds out: 62951da177e4SLinus Torvalds return status; 62961da177e4SLinus Torvalds } 62971da177e4SLinus Torvalds 629823ec6965SJ. Bruce Fields /* 629923ec6965SJ. Bruce Fields * Encode an SETACL request 630023ec6965SJ. Bruce Fields */ 63019f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 63029f06c719SChuck Lever struct nfs_setaclargs *args) 630323ec6965SJ. Bruce Fields { 630423ec6965SJ. Bruce Fields struct compound_hdr hdr = { 630566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 630623ec6965SJ. Bruce Fields }; 630723ec6965SJ. Bruce Fields 63089f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 63099f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 63109f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 63119f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6312d017931cSAndy Adamson encode_nops(&hdr); 631323ec6965SJ. Bruce Fields } 631405d564feSAndy Adamson 631523ec6965SJ. Bruce Fields /* 631623ec6965SJ. Bruce Fields * Decode SETACL response 631723ec6965SJ. Bruce Fields */ 631823ec6965SJ. Bruce Fields static int 6319bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 632073c403a9SBenny Halevy struct nfs_setaclres *res) 632123ec6965SJ. Bruce Fields { 632223ec6965SJ. Bruce Fields struct compound_hdr hdr; 632323ec6965SJ. Bruce Fields int status; 632423ec6965SJ. Bruce Fields 6325bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 632623ec6965SJ. Bruce Fields if (status) 632723ec6965SJ. Bruce Fields 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); 633223ec6965SJ. Bruce Fields if (status) 633323ec6965SJ. Bruce Fields goto out; 6334bf269551SChuck Lever status = decode_setattr(xdr); 633523ec6965SJ. Bruce Fields out: 633623ec6965SJ. Bruce Fields return status; 633723ec6965SJ. Bruce Fields } 63381da177e4SLinus Torvalds 63391da177e4SLinus Torvalds /* 6340029d105eSJ. Bruce Fields * Decode GETACL response 6341029d105eSJ. Bruce Fields */ 6342029d105eSJ. Bruce Fields static int 6343bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6344663c79b3SBenny Halevy struct nfs_getaclres *res) 6345029d105eSJ. Bruce Fields { 6346029d105eSJ. Bruce Fields struct compound_hdr hdr; 6347029d105eSJ. Bruce Fields int status; 6348029d105eSJ. Bruce Fields 6349331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6350331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6351331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6352331818f1STrond Myklebust } 6353bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6354029d105eSJ. Bruce Fields if (status) 6355029d105eSJ. Bruce Fields goto out; 6356bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63579b7b9fccSAndy Adamson if (status) 63589b7b9fccSAndy Adamson goto out; 6359bf269551SChuck Lever status = decode_putfh(xdr); 6360029d105eSJ. Bruce Fields if (status) 6361029d105eSJ. Bruce Fields goto out; 6362bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6363029d105eSJ. Bruce Fields 6364029d105eSJ. Bruce Fields out: 6365029d105eSJ. Bruce Fields return status; 6366029d105eSJ. Bruce Fields } 6367029d105eSJ. Bruce Fields 6368029d105eSJ. Bruce Fields /* 63691da177e4SLinus Torvalds * Decode CLOSE response 63701da177e4SLinus Torvalds */ 6371bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6372bf269551SChuck Lever struct nfs_closeres *res) 63731da177e4SLinus Torvalds { 63741da177e4SLinus Torvalds struct compound_hdr hdr; 63751da177e4SLinus Torvalds int status; 63761da177e4SLinus Torvalds 6377bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63781da177e4SLinus Torvalds if (status) 63791da177e4SLinus Torvalds goto out; 6380bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63819b7b9fccSAndy Adamson if (status) 63829b7b9fccSAndy Adamson goto out; 6383bf269551SChuck Lever status = decode_putfh(xdr); 63841da177e4SLinus Torvalds if (status) 63851da177e4SLinus Torvalds goto out; 6386bf269551SChuck Lever status = decode_close(xdr, res); 6387516a6af6STrond Myklebust if (status != 0) 6388516a6af6STrond Myklebust goto out; 6389516a6af6STrond Myklebust /* 6390516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6391516a6af6STrond Myklebust * in which case the getattr call will fail with 6392516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6393516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6394516a6af6STrond Myklebust */ 63956926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63961da177e4SLinus Torvalds out: 63971da177e4SLinus Torvalds return status; 63981da177e4SLinus Torvalds } 63991da177e4SLinus Torvalds 64001da177e4SLinus Torvalds /* 64011da177e4SLinus Torvalds * Decode OPEN response 64021da177e4SLinus Torvalds */ 6403bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6404bf269551SChuck Lever struct nfs_openres *res) 64051da177e4SLinus Torvalds { 64061da177e4SLinus Torvalds struct compound_hdr hdr; 64071da177e4SLinus Torvalds int status; 64081da177e4SLinus Torvalds 6409bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64101da177e4SLinus Torvalds if (status) 64111da177e4SLinus Torvalds goto out; 6412bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64139b7b9fccSAndy Adamson if (status) 64149b7b9fccSAndy Adamson goto out; 6415bf269551SChuck Lever status = decode_putfh(xdr); 64161da177e4SLinus Torvalds if (status) 64171da177e4SLinus Torvalds goto out; 6418bf269551SChuck Lever status = decode_open(xdr, res); 64191da177e4SLinus Torvalds if (status) 64201da177e4SLinus Torvalds goto out; 642101913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 642201913b49SWeston Andros Adamson if (status) 64231da177e4SLinus Torvalds goto out; 6424ae2bb032SWeston Andros Adamson if (res->access_request) 64256168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 6426aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server); 64271da177e4SLinus Torvalds out: 64281da177e4SLinus Torvalds return status; 64291da177e4SLinus Torvalds } 64301da177e4SLinus Torvalds 64311da177e4SLinus Torvalds /* 64321da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 64331da177e4SLinus Torvalds */ 6434bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6435bf269551SChuck Lever struct xdr_stream *xdr, 6436bf269551SChuck Lever struct nfs_open_confirmres *res) 64371da177e4SLinus Torvalds { 64381da177e4SLinus Torvalds struct compound_hdr hdr; 64391da177e4SLinus Torvalds int status; 64401da177e4SLinus Torvalds 6441bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64421da177e4SLinus Torvalds if (status) 64431da177e4SLinus Torvalds goto out; 6444bf269551SChuck Lever status = decode_putfh(xdr); 64451da177e4SLinus Torvalds if (status) 64461da177e4SLinus Torvalds goto out; 6447bf269551SChuck Lever status = decode_open_confirm(xdr, res); 64481da177e4SLinus Torvalds out: 64491da177e4SLinus Torvalds return status; 64501da177e4SLinus Torvalds } 64511da177e4SLinus Torvalds 64521da177e4SLinus Torvalds /* 64531da177e4SLinus Torvalds * Decode OPEN response 64541da177e4SLinus Torvalds */ 6455bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6456bf269551SChuck Lever struct xdr_stream *xdr, 6457bf269551SChuck Lever struct nfs_openres *res) 64581da177e4SLinus Torvalds { 64591da177e4SLinus Torvalds struct compound_hdr hdr; 64601da177e4SLinus Torvalds int status; 64611da177e4SLinus Torvalds 6462bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64631da177e4SLinus Torvalds if (status) 64641da177e4SLinus Torvalds goto out; 6465bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64669b7b9fccSAndy Adamson if (status) 64679b7b9fccSAndy Adamson goto out; 6468bf269551SChuck Lever status = decode_putfh(xdr); 64691da177e4SLinus Torvalds if (status) 64701da177e4SLinus Torvalds goto out; 6471bf269551SChuck Lever status = decode_open(xdr, res); 6472864472e9STrond Myklebust if (status) 6473864472e9STrond Myklebust goto out; 6474ae2bb032SWeston Andros Adamson if (res->access_request) 64756168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 64766926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 64771da177e4SLinus Torvalds out: 64781da177e4SLinus Torvalds return status; 64791da177e4SLinus Torvalds } 64801da177e4SLinus Torvalds 64811da177e4SLinus Torvalds /* 64821da177e4SLinus Torvalds * Decode SETATTR response 64831da177e4SLinus Torvalds */ 6484bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6485bf269551SChuck Lever struct xdr_stream *xdr, 6486bf269551SChuck Lever struct nfs_setattrres *res) 64871da177e4SLinus Torvalds { 64881da177e4SLinus Torvalds struct compound_hdr hdr; 64891da177e4SLinus Torvalds int status; 64901da177e4SLinus Torvalds 6491bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64921da177e4SLinus Torvalds if (status) 64931da177e4SLinus Torvalds goto out; 6494bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64959b7b9fccSAndy Adamson if (status) 64969b7b9fccSAndy Adamson goto out; 6497bf269551SChuck Lever status = decode_putfh(xdr); 64981da177e4SLinus Torvalds if (status) 64991da177e4SLinus Torvalds goto out; 6500bf269551SChuck Lever status = decode_setattr(xdr); 65011da177e4SLinus Torvalds if (status) 65021da177e4SLinus Torvalds goto out; 6503aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 65041da177e4SLinus Torvalds out: 65051da177e4SLinus Torvalds return status; 65061da177e4SLinus Torvalds } 65071da177e4SLinus Torvalds 65081da177e4SLinus Torvalds /* 65091da177e4SLinus Torvalds * Decode LOCK response 65101da177e4SLinus Torvalds */ 6511bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6512bf269551SChuck Lever struct nfs_lock_res *res) 65131da177e4SLinus Torvalds { 65141da177e4SLinus Torvalds struct compound_hdr hdr; 65151da177e4SLinus Torvalds int status; 65161da177e4SLinus Torvalds 6517bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65181da177e4SLinus Torvalds if (status) 65191da177e4SLinus Torvalds goto out; 6520bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65219b7b9fccSAndy Adamson if (status) 65229b7b9fccSAndy Adamson goto out; 6523bf269551SChuck Lever status = decode_putfh(xdr); 65241da177e4SLinus Torvalds if (status) 65251da177e4SLinus Torvalds goto out; 6526bf269551SChuck Lever status = decode_lock(xdr, res); 65271da177e4SLinus Torvalds out: 65281da177e4SLinus Torvalds return status; 65291da177e4SLinus Torvalds } 65301da177e4SLinus Torvalds 65311da177e4SLinus Torvalds /* 65321da177e4SLinus Torvalds * Decode LOCKT response 65331da177e4SLinus Torvalds */ 6534bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6535bf269551SChuck Lever struct nfs_lockt_res *res) 65361da177e4SLinus Torvalds { 65371da177e4SLinus Torvalds struct compound_hdr hdr; 65381da177e4SLinus Torvalds int status; 65391da177e4SLinus Torvalds 6540bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65411da177e4SLinus Torvalds if (status) 65421da177e4SLinus Torvalds goto out; 6543bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65449b7b9fccSAndy Adamson if (status) 65459b7b9fccSAndy Adamson goto out; 6546bf269551SChuck Lever status = decode_putfh(xdr); 65471da177e4SLinus Torvalds if (status) 65481da177e4SLinus Torvalds goto out; 6549bf269551SChuck Lever status = decode_lockt(xdr, res); 65501da177e4SLinus Torvalds out: 65511da177e4SLinus Torvalds return status; 65521da177e4SLinus Torvalds } 65531da177e4SLinus Torvalds 65541da177e4SLinus Torvalds /* 65551da177e4SLinus Torvalds * Decode LOCKU response 65561da177e4SLinus Torvalds */ 6557bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6558bf269551SChuck Lever struct nfs_locku_res *res) 65591da177e4SLinus Torvalds { 65601da177e4SLinus Torvalds struct compound_hdr hdr; 65611da177e4SLinus Torvalds int status; 65621da177e4SLinus Torvalds 6563bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65641da177e4SLinus Torvalds if (status) 65651da177e4SLinus Torvalds goto out; 6566bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65679b7b9fccSAndy Adamson if (status) 65689b7b9fccSAndy Adamson goto out; 6569bf269551SChuck Lever status = decode_putfh(xdr); 65701da177e4SLinus Torvalds if (status) 65711da177e4SLinus Torvalds goto out; 6572bf269551SChuck Lever status = decode_locku(xdr, res); 65731da177e4SLinus Torvalds out: 65741da177e4SLinus Torvalds return status; 65751da177e4SLinus Torvalds } 65761da177e4SLinus Torvalds 6577bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6578bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6579d3c7b7ccSTrond Myklebust { 6580d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6581d3c7b7ccSTrond Myklebust int status; 6582d3c7b7ccSTrond Myklebust 6583bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6584d3c7b7ccSTrond Myklebust if (!status) 6585bf269551SChuck Lever status = decode_release_lockowner(xdr); 6586d3c7b7ccSTrond Myklebust return status; 6587d3c7b7ccSTrond Myklebust } 6588d3c7b7ccSTrond Myklebust 65891da177e4SLinus Torvalds /* 65901da177e4SLinus Torvalds * Decode READLINK response 65911da177e4SLinus Torvalds */ 6592bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6593bf269551SChuck Lever struct xdr_stream *xdr, 6594f50c7000SBenny Halevy struct nfs4_readlink_res *res) 65951da177e4SLinus Torvalds { 65961da177e4SLinus Torvalds struct compound_hdr hdr; 65971da177e4SLinus Torvalds int status; 65981da177e4SLinus Torvalds 6599bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66001da177e4SLinus Torvalds if (status) 66011da177e4SLinus Torvalds goto out; 6602bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66039b7b9fccSAndy Adamson if (status) 66049b7b9fccSAndy Adamson goto out; 6605bf269551SChuck Lever status = decode_putfh(xdr); 66061da177e4SLinus Torvalds if (status) 66071da177e4SLinus Torvalds goto out; 6608bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 66091da177e4SLinus Torvalds out: 66101da177e4SLinus Torvalds return status; 66111da177e4SLinus Torvalds } 66121da177e4SLinus Torvalds 66131da177e4SLinus Torvalds /* 66141da177e4SLinus Torvalds * Decode READDIR response 66151da177e4SLinus Torvalds */ 6616bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6617bf269551SChuck Lever struct nfs4_readdir_res *res) 66181da177e4SLinus Torvalds { 66191da177e4SLinus Torvalds struct compound_hdr hdr; 66201da177e4SLinus Torvalds int status; 66211da177e4SLinus Torvalds 6622bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66231da177e4SLinus Torvalds if (status) 66241da177e4SLinus Torvalds goto out; 6625bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66269b7b9fccSAndy Adamson if (status) 66279b7b9fccSAndy Adamson goto out; 6628bf269551SChuck Lever status = decode_putfh(xdr); 66291da177e4SLinus Torvalds if (status) 66301da177e4SLinus Torvalds goto out; 6631bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 66321da177e4SLinus Torvalds out: 66331da177e4SLinus Torvalds return status; 66341da177e4SLinus Torvalds } 66351da177e4SLinus Torvalds 66361da177e4SLinus Torvalds /* 66371da177e4SLinus Torvalds * Decode Read response 66381da177e4SLinus Torvalds */ 6639bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6640bf269551SChuck Lever struct nfs_readres *res) 66411da177e4SLinus Torvalds { 66421da177e4SLinus Torvalds struct compound_hdr hdr; 66431da177e4SLinus Torvalds int status; 66441da177e4SLinus Torvalds 6645bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66461da177e4SLinus Torvalds if (status) 66471da177e4SLinus Torvalds goto out; 6648bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66499b7b9fccSAndy Adamson if (status) 66509b7b9fccSAndy Adamson goto out; 6651bf269551SChuck Lever status = decode_putfh(xdr); 66521da177e4SLinus Torvalds if (status) 66531da177e4SLinus Torvalds goto out; 6654bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 66551da177e4SLinus Torvalds if (!status) 66561da177e4SLinus Torvalds status = res->count; 66571da177e4SLinus Torvalds out: 66581da177e4SLinus Torvalds return status; 66591da177e4SLinus Torvalds } 66601da177e4SLinus Torvalds 66611da177e4SLinus Torvalds /* 66621da177e4SLinus Torvalds * Decode WRITE response 66631da177e4SLinus Torvalds */ 6664bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6665bf269551SChuck Lever struct nfs_writeres *res) 66661da177e4SLinus Torvalds { 66671da177e4SLinus Torvalds struct compound_hdr hdr; 66681da177e4SLinus Torvalds int status; 66691da177e4SLinus Torvalds 6670bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66711da177e4SLinus Torvalds if (status) 66721da177e4SLinus Torvalds goto out; 6673bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66749b7b9fccSAndy Adamson if (status) 66759b7b9fccSAndy Adamson goto out; 6676bf269551SChuck Lever status = decode_putfh(xdr); 66771da177e4SLinus Torvalds if (status) 66781da177e4SLinus Torvalds goto out; 6679bf269551SChuck Lever status = decode_write(xdr, res); 66804f9838c7STrond Myklebust if (status) 66814f9838c7STrond Myklebust goto out; 66827ffd1064SFred Isaman if (res->fattr) 66836926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 66841da177e4SLinus Torvalds if (!status) 66851da177e4SLinus Torvalds status = res->count; 66861da177e4SLinus Torvalds out: 66871da177e4SLinus Torvalds return status; 66881da177e4SLinus Torvalds } 66891da177e4SLinus Torvalds 66901da177e4SLinus Torvalds /* 66911da177e4SLinus Torvalds * Decode COMMIT response 66921da177e4SLinus Torvalds */ 6693bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 66940b7c0153SFred Isaman struct nfs_commitres *res) 66951da177e4SLinus Torvalds { 66961da177e4SLinus Torvalds struct compound_hdr hdr; 66971da177e4SLinus Torvalds int status; 66981da177e4SLinus Torvalds 6699bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67001da177e4SLinus Torvalds if (status) 67011da177e4SLinus Torvalds goto out; 6702bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67039b7b9fccSAndy Adamson if (status) 67049b7b9fccSAndy Adamson goto out; 6705bf269551SChuck Lever status = decode_putfh(xdr); 67061da177e4SLinus Torvalds if (status) 67071da177e4SLinus Torvalds goto out; 6708bf269551SChuck Lever status = decode_commit(xdr, res); 67091da177e4SLinus Torvalds out: 67101da177e4SLinus Torvalds return status; 67111da177e4SLinus Torvalds } 67121da177e4SLinus Torvalds 67131da177e4SLinus Torvalds /* 67148b173218SRicardo Labiaga * Decode FSINFO response 67151da177e4SLinus Torvalds */ 6716bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 67173dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 67181da177e4SLinus Torvalds { 67191da177e4SLinus Torvalds struct compound_hdr hdr; 67201da177e4SLinus Torvalds int status; 67211da177e4SLinus Torvalds 6722bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67231da177e4SLinus Torvalds if (!status) 6724bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67259b7b9fccSAndy Adamson if (!status) 6726bf269551SChuck Lever status = decode_putfh(xdr); 67271da177e4SLinus Torvalds if (!status) 6728bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 67291da177e4SLinus Torvalds return status; 67301da177e4SLinus Torvalds } 67311da177e4SLinus Torvalds 67321da177e4SLinus Torvalds /* 67338b173218SRicardo Labiaga * Decode PATHCONF response 67341da177e4SLinus Torvalds */ 6735bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6736d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 67371da177e4SLinus Torvalds { 67381da177e4SLinus Torvalds struct compound_hdr hdr; 67391da177e4SLinus Torvalds int status; 67401da177e4SLinus Torvalds 6741bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67421da177e4SLinus Torvalds if (!status) 6743bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67449b7b9fccSAndy Adamson if (!status) 6745bf269551SChuck Lever status = decode_putfh(xdr); 67461da177e4SLinus Torvalds if (!status) 6747bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 67481da177e4SLinus Torvalds return status; 67491da177e4SLinus Torvalds } 67501da177e4SLinus Torvalds 67511da177e4SLinus Torvalds /* 67528b173218SRicardo Labiaga * Decode STATFS response 67531da177e4SLinus Torvalds */ 6754bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 675524ad148aSBenny Halevy struct nfs4_statfs_res *res) 67561da177e4SLinus Torvalds { 67571da177e4SLinus Torvalds struct compound_hdr hdr; 67581da177e4SLinus Torvalds int status; 67591da177e4SLinus Torvalds 6760bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67611da177e4SLinus Torvalds if (!status) 6762bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67639b7b9fccSAndy Adamson if (!status) 6764bf269551SChuck Lever status = decode_putfh(xdr); 67651da177e4SLinus Torvalds if (!status) 6766bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 67671da177e4SLinus Torvalds return status; 67681da177e4SLinus Torvalds } 67691da177e4SLinus Torvalds 67701da177e4SLinus Torvalds /* 67718b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 67721da177e4SLinus Torvalds */ 6773bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6774bf269551SChuck Lever struct xdr_stream *xdr, 6775bf269551SChuck Lever struct nfs4_server_caps_res *res) 67761da177e4SLinus Torvalds { 67771da177e4SLinus Torvalds struct compound_hdr hdr; 67781da177e4SLinus Torvalds int status; 67791da177e4SLinus Torvalds 6780bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67819b7b9fccSAndy Adamson if (status) 67829b7b9fccSAndy Adamson goto out; 6783bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67849b7b9fccSAndy Adamson if (status) 67851da177e4SLinus Torvalds goto out; 6786bf269551SChuck Lever status = decode_putfh(xdr); 6787bf269551SChuck Lever if (status) 67881da177e4SLinus Torvalds goto out; 6789bf269551SChuck Lever status = decode_server_caps(xdr, res); 67901da177e4SLinus Torvalds out: 67911da177e4SLinus Torvalds return status; 67921da177e4SLinus Torvalds } 67931da177e4SLinus Torvalds 67941da177e4SLinus Torvalds /* 67951da177e4SLinus Torvalds * Decode RENEW response 67961da177e4SLinus Torvalds */ 6797bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6798bf269551SChuck Lever void *__unused) 67991da177e4SLinus Torvalds { 68001da177e4SLinus Torvalds struct compound_hdr hdr; 68011da177e4SLinus Torvalds int status; 68021da177e4SLinus Torvalds 6803bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68041da177e4SLinus Torvalds if (!status) 6805bf269551SChuck Lever status = decode_renew(xdr); 68061da177e4SLinus Torvalds return status; 68071da177e4SLinus Torvalds } 68081da177e4SLinus Torvalds 68091da177e4SLinus Torvalds /* 68108b173218SRicardo Labiaga * Decode SETCLIENTID response 68111da177e4SLinus Torvalds */ 6812bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6813bf269551SChuck Lever struct xdr_stream *xdr, 6814bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 68151da177e4SLinus Torvalds { 68161da177e4SLinus Torvalds struct compound_hdr hdr; 68171da177e4SLinus Torvalds int status; 68181da177e4SLinus Torvalds 6819bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68201da177e4SLinus Torvalds if (!status) 6821bf269551SChuck Lever status = decode_setclientid(xdr, res); 68221da177e4SLinus Torvalds return status; 68231da177e4SLinus Torvalds } 68241da177e4SLinus Torvalds 68251da177e4SLinus Torvalds /* 68268b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 68271da177e4SLinus Torvalds */ 6828bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 682983ca7f5aSChuck Lever struct xdr_stream *xdr) 68301da177e4SLinus Torvalds { 68311da177e4SLinus Torvalds struct compound_hdr hdr; 68321da177e4SLinus Torvalds int status; 68331da177e4SLinus Torvalds 6834bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68351da177e4SLinus Torvalds if (!status) 6836bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 68371da177e4SLinus Torvalds return status; 68381da177e4SLinus Torvalds } 68391da177e4SLinus Torvalds 68401da177e4SLinus Torvalds /* 68418b173218SRicardo Labiaga * Decode DELEGRETURN response 68421da177e4SLinus Torvalds */ 6843bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6844bf269551SChuck Lever struct xdr_stream *xdr, 6845bf269551SChuck Lever struct nfs4_delegreturnres *res) 68461da177e4SLinus Torvalds { 68471da177e4SLinus Torvalds struct compound_hdr hdr; 68481da177e4SLinus Torvalds int status; 68491da177e4SLinus Torvalds 6850bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68519b7b9fccSAndy Adamson if (status) 68529b7b9fccSAndy Adamson goto out; 6853bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 68549b7b9fccSAndy Adamson if (status) 6855fa178f29STrond Myklebust goto out; 6856bf269551SChuck Lever status = decode_putfh(xdr); 6857fa178f29STrond Myklebust if (status != 0) 6858fa178f29STrond Myklebust goto out; 6859e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6860556ae3bbSJeff Layton if (status != 0) 6861556ae3bbSJeff Layton goto out; 6862e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6863fa178f29STrond Myklebust out: 68641da177e4SLinus Torvalds return status; 68651da177e4SLinus Torvalds } 68661da177e4SLinus Torvalds 6867683b57b4STrond Myklebust /* 68688b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6869683b57b4STrond Myklebust */ 6870bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6871bf269551SChuck Lever struct xdr_stream *xdr, 687222958463SBenny Halevy struct nfs4_fs_locations_res *res) 6873683b57b4STrond Myklebust { 6874683b57b4STrond Myklebust struct compound_hdr hdr; 6875683b57b4STrond Myklebust int status; 6876683b57b4STrond Myklebust 6877bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68789b7b9fccSAndy Adamson if (status) 68799b7b9fccSAndy Adamson goto out; 6880bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68819b7b9fccSAndy Adamson if (status) 6882683b57b4STrond Myklebust goto out; 6883bf269551SChuck Lever status = decode_putfh(xdr); 6884bf269551SChuck Lever if (status) 6885683b57b4STrond Myklebust goto out; 6886b03d735bSChuck Lever if (res->migration) { 6887b03d735bSChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6888b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6889b03d735bSChuck Lever &res->fs_locations->fattr, 6890b03d735bSChuck Lever NULL, res->fs_locations, 6891b03d735bSChuck Lever NULL, res->fs_locations->server); 6892b03d735bSChuck Lever if (status) 6893b03d735bSChuck Lever goto out; 6894b03d735bSChuck Lever if (res->renew) 6895b03d735bSChuck Lever status = decode_renew(xdr); 6896b03d735bSChuck Lever } else { 6897bf269551SChuck Lever status = decode_lookup(xdr); 6898bf269551SChuck Lever if (status) 6899683b57b4STrond Myklebust goto out; 6900bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6901b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6902b03d735bSChuck Lever &res->fs_locations->fattr, 69038b7e3f49STrond Myklebust NULL, res->fs_locations, 6904aa9c2669SDavid Quigley NULL, res->fs_locations->server); 6905b03d735bSChuck Lever } 6906683b57b4STrond Myklebust out: 6907683b57b4STrond Myklebust return status; 6908683b57b4STrond Myklebust } 6909683b57b4STrond Myklebust 69105a5ea0d4SBryan Schumaker /* 69115a5ea0d4SBryan Schumaker * Decode SECINFO response 69125a5ea0d4SBryan Schumaker */ 69135a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 69145a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 69155a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 69165a5ea0d4SBryan Schumaker { 69175a5ea0d4SBryan Schumaker struct compound_hdr hdr; 69185a5ea0d4SBryan Schumaker int status; 69195a5ea0d4SBryan Schumaker 69205a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69215a5ea0d4SBryan Schumaker if (status) 69225a5ea0d4SBryan Schumaker goto out; 69235a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69245a5ea0d4SBryan Schumaker if (status) 69255a5ea0d4SBryan Schumaker goto out; 69265a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 69275a5ea0d4SBryan Schumaker if (status) 69285a5ea0d4SBryan Schumaker goto out; 69295a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 69305a5ea0d4SBryan Schumaker out: 69315a5ea0d4SBryan Schumaker return status; 69325a5ea0d4SBryan Schumaker } 69335a5ea0d4SBryan Schumaker 693444c99933SChuck Lever /* 693544c99933SChuck Lever * Decode FSID_PRESENT response 693644c99933SChuck Lever */ 693744c99933SChuck Lever static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp, 693844c99933SChuck Lever struct xdr_stream *xdr, 693944c99933SChuck Lever struct nfs4_fsid_present_res *res) 694044c99933SChuck Lever { 694144c99933SChuck Lever struct compound_hdr hdr; 694244c99933SChuck Lever int status; 694344c99933SChuck Lever 694444c99933SChuck Lever status = decode_compound_hdr(xdr, &hdr); 694544c99933SChuck Lever if (status) 694644c99933SChuck Lever goto out; 694744c99933SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 694844c99933SChuck Lever if (status) 694944c99933SChuck Lever goto out; 695044c99933SChuck Lever status = decode_putfh(xdr); 695144c99933SChuck Lever if (status) 695244c99933SChuck Lever goto out; 695344c99933SChuck Lever status = decode_getfh(xdr, res->fh); 695444c99933SChuck Lever if (status) 695544c99933SChuck Lever goto out; 695644c99933SChuck Lever if (res->renew) 695744c99933SChuck Lever status = decode_renew(xdr); 695844c99933SChuck Lever out: 695944c99933SChuck Lever return status; 696044c99933SChuck Lever } 696144c99933SChuck Lever 696299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 696399fe60d0SBenny Halevy /* 69647c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 69657c44f1aeSWeston Andros Adamson */ 69667c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 69677c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 69687c44f1aeSWeston Andros Adamson void *res) 69697c44f1aeSWeston Andros Adamson { 69707c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 69717c44f1aeSWeston Andros Adamson int status; 69727c44f1aeSWeston Andros Adamson 69737c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 69747c44f1aeSWeston Andros Adamson if (!status) 69757c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 69767c44f1aeSWeston Andros Adamson return status; 69777c44f1aeSWeston Andros Adamson } 69787c44f1aeSWeston Andros Adamson 69797c44f1aeSWeston Andros Adamson /* 69808b173218SRicardo Labiaga * Decode EXCHANGE_ID response 698199fe60d0SBenny Halevy */ 6982bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6983bf269551SChuck Lever struct xdr_stream *xdr, 698499fe60d0SBenny Halevy void *res) 698599fe60d0SBenny Halevy { 698699fe60d0SBenny Halevy struct compound_hdr hdr; 698799fe60d0SBenny Halevy int status; 698899fe60d0SBenny Halevy 6989bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 699099fe60d0SBenny Halevy if (!status) 6991bf269551SChuck Lever status = decode_exchange_id(xdr, res); 699299fe60d0SBenny Halevy return status; 699399fe60d0SBenny Halevy } 69942050f0ccSAndy Adamson 69952050f0ccSAndy Adamson /* 69968b173218SRicardo Labiaga * Decode CREATE_SESSION response 6997fc931582SAndy Adamson */ 6998bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6999bf269551SChuck Lever struct xdr_stream *xdr, 7000fc931582SAndy Adamson struct nfs41_create_session_res *res) 7001fc931582SAndy Adamson { 7002fc931582SAndy Adamson struct compound_hdr hdr; 7003fc931582SAndy Adamson int status; 7004fc931582SAndy Adamson 7005bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7006fc931582SAndy Adamson if (!status) 7007bf269551SChuck Lever status = decode_create_session(xdr, res); 7008fc931582SAndy Adamson return status; 7009fc931582SAndy Adamson } 7010fc931582SAndy Adamson 7011fc931582SAndy Adamson /* 70128b173218SRicardo Labiaga * Decode DESTROY_SESSION response 70130f3e66c6SAndy Adamson */ 7014bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 7015bf269551SChuck Lever struct xdr_stream *xdr, 7016bf269551SChuck Lever void *res) 70170f3e66c6SAndy Adamson { 70180f3e66c6SAndy Adamson struct compound_hdr hdr; 70190f3e66c6SAndy Adamson int status; 70200f3e66c6SAndy Adamson 7021bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70220f3e66c6SAndy Adamson if (!status) 7023bf269551SChuck Lever status = decode_destroy_session(xdr, res); 70240f3e66c6SAndy Adamson return status; 70250f3e66c6SAndy Adamson } 70260f3e66c6SAndy Adamson 70270f3e66c6SAndy Adamson /* 702866245539STrond Myklebust * Decode DESTROY_CLIENTID response 702966245539STrond Myklebust */ 703066245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 703166245539STrond Myklebust struct xdr_stream *xdr, 703266245539STrond Myklebust void *res) 703366245539STrond Myklebust { 703466245539STrond Myklebust struct compound_hdr hdr; 703566245539STrond Myklebust int status; 703666245539STrond Myklebust 703766245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 703866245539STrond Myklebust if (!status) 703966245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 704066245539STrond Myklebust return status; 704166245539STrond Myklebust } 704266245539STrond Myklebust 704366245539STrond Myklebust /* 70448b173218SRicardo Labiaga * Decode SEQUENCE response 7045fc01cea9SAndy Adamson */ 7046bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 7047bf269551SChuck Lever struct xdr_stream *xdr, 7048fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 7049fc01cea9SAndy Adamson { 7050fc01cea9SAndy Adamson struct compound_hdr hdr; 7051fc01cea9SAndy Adamson int status; 7052fc01cea9SAndy Adamson 7053bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7054fc01cea9SAndy Adamson if (!status) 7055bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 7056fc01cea9SAndy Adamson return status; 7057fc01cea9SAndy Adamson } 7058fc01cea9SAndy Adamson 7059fc01cea9SAndy Adamson /* 70608b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 70612050f0ccSAndy Adamson */ 7062bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 7063bf269551SChuck Lever struct xdr_stream *xdr, 70642050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 70652050f0ccSAndy Adamson { 70662050f0ccSAndy Adamson struct compound_hdr hdr; 70672050f0ccSAndy Adamson int status; 70682050f0ccSAndy Adamson 7069bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70702050f0ccSAndy Adamson if (!status) 7071bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 70722050f0ccSAndy Adamson if (!status) 7073bf269551SChuck Lever status = decode_putrootfh(xdr); 70742050f0ccSAndy Adamson if (!status) 7075bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 70762050f0ccSAndy Adamson return status; 70772050f0ccSAndy Adamson } 707818019753SRicardo Labiaga 707918019753SRicardo Labiaga /* 708018019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 708118019753SRicardo Labiaga */ 7082bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 7083bf269551SChuck Lever struct xdr_stream *xdr, 708418019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 708518019753SRicardo Labiaga { 708618019753SRicardo Labiaga struct compound_hdr hdr; 708718019753SRicardo Labiaga int status; 708818019753SRicardo Labiaga 7089bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 709018019753SRicardo Labiaga if (!status) 7091bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 709218019753SRicardo Labiaga if (!status) 7093bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 709418019753SRicardo Labiaga return status; 709518019753SRicardo Labiaga } 7096b1f69b75SAndy Adamson 7097b1f69b75SAndy Adamson /* 70987f11d8d3SAndy Adamson * Decode GETDEVICELIST response 70997f11d8d3SAndy Adamson */ 71007f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 71017f11d8d3SAndy Adamson struct xdr_stream *xdr, 71027f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 71037f11d8d3SAndy Adamson { 71047f11d8d3SAndy Adamson struct compound_hdr hdr; 71057f11d8d3SAndy Adamson int status; 71067f11d8d3SAndy Adamson 71077f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 71087f11d8d3SAndy Adamson 71097f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 71107f11d8d3SAndy Adamson if (status != 0) 71117f11d8d3SAndy Adamson goto out; 71127f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 71137f11d8d3SAndy Adamson if (status != 0) 71147f11d8d3SAndy Adamson goto out; 71157f11d8d3SAndy Adamson status = decode_putfh(xdr); 71167f11d8d3SAndy Adamson if (status != 0) 71177f11d8d3SAndy Adamson goto out; 71187f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 71197f11d8d3SAndy Adamson out: 71207f11d8d3SAndy Adamson return status; 71217f11d8d3SAndy Adamson } 71227f11d8d3SAndy Adamson 71237f11d8d3SAndy Adamson /* 7124b1f69b75SAndy Adamson * Decode GETDEVINFO response 7125b1f69b75SAndy Adamson */ 7126bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 7127bf269551SChuck Lever struct xdr_stream *xdr, 7128b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 7129b1f69b75SAndy Adamson { 7130b1f69b75SAndy Adamson struct compound_hdr hdr; 7131b1f69b75SAndy Adamson int status; 7132b1f69b75SAndy Adamson 7133bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7134b1f69b75SAndy Adamson if (status != 0) 7135b1f69b75SAndy Adamson goto out; 7136bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7137b1f69b75SAndy Adamson if (status != 0) 7138b1f69b75SAndy Adamson goto out; 7139bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 7140b1f69b75SAndy Adamson out: 7141b1f69b75SAndy Adamson return status; 7142b1f69b75SAndy Adamson } 7143b1f69b75SAndy Adamson 7144b1f69b75SAndy Adamson /* 7145b1f69b75SAndy Adamson * Decode LAYOUTGET response 7146b1f69b75SAndy Adamson */ 7147bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 7148bf269551SChuck Lever struct xdr_stream *xdr, 7149b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 7150b1f69b75SAndy Adamson { 7151b1f69b75SAndy Adamson struct compound_hdr hdr; 7152b1f69b75SAndy Adamson int status; 7153b1f69b75SAndy Adamson 7154bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7155b1f69b75SAndy Adamson if (status) 7156b1f69b75SAndy Adamson goto out; 7157bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7158b1f69b75SAndy Adamson if (status) 7159b1f69b75SAndy Adamson goto out; 7160bf269551SChuck Lever status = decode_putfh(xdr); 7161b1f69b75SAndy Adamson if (status) 7162b1f69b75SAndy Adamson goto out; 7163bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 7164b1f69b75SAndy Adamson out: 7165b1f69b75SAndy Adamson return status; 7166b1f69b75SAndy Adamson } 7167863a3c6cSAndy Adamson 7168863a3c6cSAndy Adamson /* 7169cbe82603SBenny Halevy * Decode LAYOUTRETURN response 7170cbe82603SBenny Halevy */ 7171cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 7172cbe82603SBenny Halevy struct xdr_stream *xdr, 7173cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 7174cbe82603SBenny Halevy { 7175cbe82603SBenny Halevy struct compound_hdr hdr; 7176cbe82603SBenny Halevy int status; 7177cbe82603SBenny Halevy 7178cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 7179cbe82603SBenny Halevy if (status) 7180cbe82603SBenny Halevy goto out; 7181cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 7182cbe82603SBenny Halevy if (status) 7183cbe82603SBenny Halevy goto out; 7184cbe82603SBenny Halevy status = decode_putfh(xdr); 7185cbe82603SBenny Halevy if (status) 7186cbe82603SBenny Halevy goto out; 7187cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 7188cbe82603SBenny Halevy out: 7189cbe82603SBenny Halevy return status; 7190cbe82603SBenny Halevy } 7191cbe82603SBenny Halevy 7192cbe82603SBenny Halevy /* 7193863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 7194863a3c6cSAndy Adamson */ 7195863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 7196863a3c6cSAndy Adamson struct xdr_stream *xdr, 7197863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 7198863a3c6cSAndy Adamson { 7199863a3c6cSAndy Adamson struct compound_hdr hdr; 7200863a3c6cSAndy Adamson int status; 7201863a3c6cSAndy Adamson 7202863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 7203863a3c6cSAndy Adamson if (status) 7204863a3c6cSAndy Adamson goto out; 7205863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 7206863a3c6cSAndy Adamson if (status) 7207863a3c6cSAndy Adamson goto out; 7208863a3c6cSAndy Adamson status = decode_putfh(xdr); 7209863a3c6cSAndy Adamson if (status) 7210863a3c6cSAndy Adamson goto out; 7211863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 7212863a3c6cSAndy Adamson if (status) 7213863a3c6cSAndy Adamson goto out; 72146926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 7215863a3c6cSAndy Adamson out: 7216863a3c6cSAndy Adamson return status; 7217863a3c6cSAndy Adamson } 7218fca78d6dSBryan Schumaker 7219fca78d6dSBryan Schumaker /* 7220fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7221fca78d6dSBryan Schumaker */ 7222fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7223fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7224fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 7225fca78d6dSBryan Schumaker { 7226fca78d6dSBryan Schumaker struct compound_hdr hdr; 7227fca78d6dSBryan Schumaker int status; 7228fca78d6dSBryan Schumaker 7229fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7230fca78d6dSBryan Schumaker if (status) 7231fca78d6dSBryan Schumaker goto out; 7232fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7233fca78d6dSBryan Schumaker if (status) 7234fca78d6dSBryan Schumaker goto out; 7235fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7236fca78d6dSBryan Schumaker if (status) 7237fca78d6dSBryan Schumaker goto out; 723831e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7239fca78d6dSBryan Schumaker out: 7240fca78d6dSBryan Schumaker return status; 7241fca78d6dSBryan Schumaker } 72427d974794SBryan Schumaker 72437d974794SBryan Schumaker /* 72447d974794SBryan Schumaker * Decode TEST_STATEID response 72457d974794SBryan Schumaker */ 72467d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 72477d974794SBryan Schumaker struct xdr_stream *xdr, 72487d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 72497d974794SBryan Schumaker { 72507d974794SBryan Schumaker struct compound_hdr hdr; 72517d974794SBryan Schumaker int status; 72527d974794SBryan Schumaker 72537d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 72547d974794SBryan Schumaker if (status) 72557d974794SBryan Schumaker goto out; 72567d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 72577d974794SBryan Schumaker if (status) 72587d974794SBryan Schumaker goto out; 72597d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 72607d974794SBryan Schumaker out: 72617d974794SBryan Schumaker return status; 72627d974794SBryan Schumaker } 72639aeda35fSBryan Schumaker 72649aeda35fSBryan Schumaker /* 72659aeda35fSBryan Schumaker * Decode FREE_STATEID response 72669aeda35fSBryan Schumaker */ 72679aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 72689aeda35fSBryan Schumaker struct xdr_stream *xdr, 72699aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 72709aeda35fSBryan Schumaker { 72719aeda35fSBryan Schumaker struct compound_hdr hdr; 72729aeda35fSBryan Schumaker int status; 72739aeda35fSBryan Schumaker 72749aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 72759aeda35fSBryan Schumaker if (status) 72769aeda35fSBryan Schumaker goto out; 72779aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 72789aeda35fSBryan Schumaker if (status) 72799aeda35fSBryan Schumaker goto out; 72809aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 72819aeda35fSBryan Schumaker out: 72829aeda35fSBryan Schumaker return status; 72839aeda35fSBryan Schumaker } 728499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 728599fe60d0SBenny Halevy 7286573c4e1eSChuck Lever /** 7287573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7288573c4e1eSChuck Lever * the local page cache. 7289573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7290573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7291573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7292573c4e1eSChuck Lever * 7293573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7294573c4e1eSChuck Lever * returned. 7295573c4e1eSChuck Lever * 7296573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7297573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7298573c4e1eSChuck Lever * on a directory already in our cache. 7299573c4e1eSChuck Lever */ 7300573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7301573c4e1eSChuck Lever int plus) 73021da177e4SLinus Torvalds { 7303256e48bbSTrond Myklebust unsigned int savep; 7304dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 73051da177e4SLinus Torvalds uint32_t len; 7306babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7307babddc72SBryan Schumaker if (unlikely(!p)) 7308babddc72SBryan Schumaker goto out_overflow; 7309c08e76d0SChuck Lever if (*p == xdr_zero) { 7310babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7311babddc72SBryan Schumaker if (unlikely(!p)) 7312babddc72SBryan Schumaker goto out_overflow; 7313c08e76d0SChuck Lever if (*p == xdr_zero) 7314573c4e1eSChuck Lever return -EAGAIN; 73151da177e4SLinus Torvalds entry->eof = 1; 7316573c4e1eSChuck Lever return -EBADCOOKIE; 73171da177e4SLinus Torvalds } 73181da177e4SLinus Torvalds 7319babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7320babddc72SBryan Schumaker if (unlikely(!p)) 7321babddc72SBryan Schumaker goto out_overflow; 73221da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 73231da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7324c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7325babddc72SBryan Schumaker 73269af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7327babddc72SBryan Schumaker if (unlikely(!p)) 7328babddc72SBryan Schumaker goto out_overflow; 73291da177e4SLinus Torvalds entry->name = (const char *) p; 73301da177e4SLinus Torvalds 73311da177e4SLinus Torvalds /* 73321da177e4SLinus Torvalds * In case the server doesn't return an inode number, 73331da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 73341da177e4SLinus Torvalds * since glibc seems to choke on it...) 73351da177e4SLinus Torvalds */ 73361da177e4SLinus Torvalds entry->ino = 1; 73374f082222STrond Myklebust entry->fattr->valid = 0; 73381da177e4SLinus Torvalds 73399af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7340babddc72SBryan Schumaker goto out_overflow; 73419af8c222STrond Myklebust 7342256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7343babddc72SBryan Schumaker goto out_overflow; 73449af8c222STrond Myklebust 7345573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 7346aa9c2669SDavid Quigley NULL, entry->label, entry->server) < 0) 7347babddc72SBryan Schumaker goto out_overflow; 734828331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 734928331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 735028331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 735182f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 73529af8c222STrond Myklebust 73530b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 73540b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 73550b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 73560b26a0bfSTrond Myklebust 7357573c4e1eSChuck Lever return 0; 7358babddc72SBryan Schumaker 7359babddc72SBryan Schumaker out_overflow: 7360babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7361573c4e1eSChuck Lever return -EAGAIN; 73621da177e4SLinus Torvalds } 73631da177e4SLinus Torvalds 73641da177e4SLinus Torvalds /* 73651da177e4SLinus Torvalds * We need to translate between nfs status return values and 73661da177e4SLinus Torvalds * the local errno values which may not be the same. 73671da177e4SLinus Torvalds */ 73681da177e4SLinus Torvalds static struct { 73691da177e4SLinus Torvalds int stat; 73701da177e4SLinus Torvalds int errno; 73711da177e4SLinus Torvalds } nfs_errtbl[] = { 73721da177e4SLinus Torvalds { NFS4_OK, 0 }, 7373856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7374856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7375856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7376856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7377856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7378856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7379856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7380856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7381856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7382856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7383856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7384856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7385856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7386856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7387856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7388856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7389856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7390856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7391856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7392856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7393856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7394856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7395fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7396856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7397856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7398856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7399856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7400856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7401856dff3dSBenny Halevy { -1, -EIO } 74021da177e4SLinus Torvalds }; 74031da177e4SLinus Torvalds 74041da177e4SLinus Torvalds /* 74051da177e4SLinus Torvalds * Convert an NFS error code to a local one. 74061da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 74071da177e4SLinus Torvalds */ 74081da177e4SLinus Torvalds static int 74090a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 74101da177e4SLinus Torvalds { 74111da177e4SLinus Torvalds int i; 74121da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 74131da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 74141da177e4SLinus Torvalds return nfs_errtbl[i].errno; 74151da177e4SLinus Torvalds } 74161da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 74171da177e4SLinus Torvalds /* The server is looney tunes. */ 7418fdcb4577STrond Myklebust return -EREMOTEIO; 74191da177e4SLinus Torvalds } 74201da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 74211da177e4SLinus Torvalds * handle it. 74221da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 74231da177e4SLinus Torvalds * not conflict with native Linux error codes. 74241da177e4SLinus Torvalds */ 7425856dff3dSBenny Halevy return -stat; 74261da177e4SLinus Torvalds } 74271da177e4SLinus Torvalds 74281da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 74291da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 74301da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 74319f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7432bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 74332bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 74342bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7435cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7436cc0175c1SChuck Lever .p_name = #proc, \ 74371da177e4SLinus Torvalds } 74381da177e4SLinus Torvalds 74391da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 74401da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 74411da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 74421da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 74431da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 74441da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 74451da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 74461da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 74471da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 74481da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 74491da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 74501da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 74511da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 74521da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 74531da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 74541da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 74551da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 74561da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 74571da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 74581da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 74591da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 74601da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 74611da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 74621da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 74631da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 74641da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 74651da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 74661da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 74671da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 74681da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 74691da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 74701da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7471029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 747223ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7473683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7474d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 74755a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 747644c99933SChuck Lever PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present), 747799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 747899fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7479fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 74800f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7481fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 74822050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 748318019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7484b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7485b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7486863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7487cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7488fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 74897d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 74909aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 74917f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 7492ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7493ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 749466245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 749599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 74961da177e4SLinus Torvalds }; 74971da177e4SLinus Torvalds 7498a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 74991da177e4SLinus Torvalds .number = 4, 7500e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 75011da177e4SLinus Torvalds .procs = nfs4_procedures 75021da177e4SLinus Torvalds }; 75031da177e4SLinus Torvalds 75041da177e4SLinus Torvalds /* 75051da177e4SLinus Torvalds * Local variables: 75061da177e4SLinus Torvalds * c-basic-offset: 8 75071da177e4SLinus Torvalds * End: 75081da177e4SLinus Torvalds */ 7509