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> 55f092075dSChuck Lever 564ce79717STrond Myklebust #include "nfs4_fs.h" 574882ef72SAlexandros Batsakis #include "internal.h" 5840c64c26SAnna Schumaker #include "nfs4idmap.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) + \ 142b8fb2f59SJeff Layton /* client name */ \ 143b8fb2f59SJeff Layton 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 144cc38bac3SChuck Lever 1 /* sc_prog */ + \ 1456dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1466dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 147cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1481da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1491da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1506dd3436bSChuck Lever 2 /* clientid */ + \ 1516dd3436bSChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 1526dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1536dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN)) 1541da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1551da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1561da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1571da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1581da177e4SLinus Torvalds (op_decode_hdr_maxsz) 159e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 160e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1612cebf828STrond Myklebust #define encode_share_access_maxsz \ 1622cebf828STrond Myklebust (2) 1634882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1642cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1652cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1662cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1672cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1682cebf828STrond Myklebust open_owner_id_maxsz + \ 1692cebf828STrond Myklebust encode_opentype_maxsz + \ 1702cebf828STrond Myklebust encode_claim_null_maxsz) 1712cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1729104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1732cebf828STrond Myklebust decode_ace_maxsz) 1742cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1752cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1769104a55dSTrond Myklebust decode_stateid_maxsz + \ 1772cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1782cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1792cebf828STrond Myklebust decode_delegation_maxsz) 1809104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1819104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1829104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1839104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1849104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1859104a55dSTrond Myklebust decode_stateid_maxsz) 1869104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1879104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1889104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1899104a55dSTrond Myklebust encode_share_access_maxsz) 1909104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1919104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1929104a55dSTrond Myklebust decode_stateid_maxsz) 1939104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1949104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1959104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1969104a55dSTrond Myklebust decode_stateid_maxsz) 1979104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1989104a55dSTrond Myklebust encode_stateid_maxsz + \ 1999104a55dSTrond Myklebust encode_attrs_maxsz) 2009104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 2019104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 2029104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 2039104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2049104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 2059104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 206aa9c2669SDavid Quigley 2 + encode_verifier_maxsz + 5 + \ 207aa9c2669SDavid Quigley nfs4_label_maxsz) 2089104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 209a7697f6fSChuck Lever decode_verifier_maxsz) 2109104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 2119104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 2129104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2139104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2149104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2159104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2169104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2179104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2189104a55dSTrond Myklebust decode_verifier_maxsz) 2191da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2201da177e4SLinus Torvalds nfs4_name_maxsz) 2216ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2226ce18391SBenny Halevy decode_change_info_maxsz) 2231da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2241da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2256ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2266ce18391SBenny Halevy decode_change_info_maxsz + \ 2276ce18391SBenny Halevy decode_change_info_maxsz) 2281da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2291da177e4SLinus Torvalds nfs4_name_maxsz) 2306ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 231daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2329104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2339104a55dSTrond Myklebust 7 + \ 234daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 235daccbdedSTrond Myklebust encode_lockowner_maxsz) 2369104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2379104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2389104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2399104a55dSTrond Myklebust decode_lock_denied_maxsz) 240daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 241daccbdedSTrond Myklebust encode_lockowner_maxsz) 2429104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2439104a55dSTrond Myklebust decode_lock_denied_maxsz) 2449104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2459104a55dSTrond Myklebust encode_stateid_maxsz + \ 2469104a55dSTrond Myklebust 4) 2479104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2489104a55dSTrond Myklebust decode_stateid_maxsz) 249d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 250d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 251d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 252d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 253d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2549104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2559104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2561da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2571da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 25894a6d753SChuck Lever 1 + \ 25996928206SJ. Bruce Fields nfs4_fattr_maxsz) 2601da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2611da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2629104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2639104a55dSTrond Myklebust encode_attrs_maxsz) 2642cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2652cebf828STrond Myklebust decode_change_info_maxsz + \ 2662cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2679104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2689104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2691da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2701da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2719104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2729104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2739104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2749104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2759104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2769104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 277e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 278e6889620STrond Myklebust (encode_getattr_maxsz) 279e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 280e6889620STrond Myklebust (0) 2815a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2821650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2839b7b9fccSAndy Adamson 2849b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 285fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 286d751f748SJim Rees #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ 287d751f748SJim Rees sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) 288fc931582SAndy Adamson 28999fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 29099fe60d0SBenny Halevy encode_verifier_maxsz + \ 29199fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 292b8fb2f59SJeff Layton /* eia_clientowner */ \ 293b8fb2f59SJeff Layton 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 29499fe60d0SBenny Halevy 1 /* flags */ + \ 29599fe60d0SBenny Halevy 1 /* spa_how */ + \ 2962031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 2972031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 2982031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 299db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 300db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 301db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 302db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 303d751f748SJim Rees XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 304db8ac8baSWeston Andros Adamson 3 /* nii_date */) 30599fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 30699fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 30799fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 30899fe60d0SBenny Halevy 1 /* eir_flags */ + \ 30999fe60d0SBenny Halevy 1 /* spr_how */ + \ 3102031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 3112031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 3122031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 31399fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 31499fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 31599fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 31699fe60d0SBenny Halevy /* eir_server_scope<> */ \ 31799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 31899fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 3197d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3207d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3217d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3227d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3237d2ed9acSWeston Andros Adamson 3 /* nii_date */) 324fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 325fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 326fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 327fc931582SAndy Adamson 1 /* ca_rdma_ird */) 328fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 329fc931582SAndy Adamson 2 /* csa_clientid */ + \ 330fc931582SAndy Adamson 1 /* csa_sequence */ + \ 331fc931582SAndy Adamson 1 /* csa_flags */ + \ 332fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 333fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 334fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 335fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 336fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 337fc931582SAndy Adamson 1 /* stamp */ + \ 338fc931582SAndy Adamson 1 /* machinename.len */ + \ 339fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 340fc931582SAndy Adamson 1 /* uid */ + \ 341fc931582SAndy Adamson 1 /* gid */ + \ 342fc931582SAndy Adamson 1 /* gids.len (0) */) 343fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 344fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 345fc931582SAndy Adamson 1 /* csr_sequence */ + \ 346fc931582SAndy Adamson 1 /* csr_flags */ + \ 347fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 348fc931582SAndy Adamson decode_channel_attrs_maxsz) 3497c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3507c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3517c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3527c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3537c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3547c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3557c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3567c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3577c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3587c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3590f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3600f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 36166245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 36266245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 363fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 364fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 365fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 366fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 36718019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 36818019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 36984c9dee3SChristoph Hellwig #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \ 37084c9dee3SChristoph Hellwig XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \ 37184c9dee3SChristoph Hellwig 1 /* layout type */ + \ 37284c9dee3SChristoph Hellwig 1 /* maxcount */ + \ 37384c9dee3SChristoph Hellwig 1 /* bitmap size */ + \ 37484c9dee3SChristoph Hellwig 1 /* notification bitmap length */ + \ 37584c9dee3SChristoph Hellwig 1 /* notification bitmap, word 0 */) 376b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 377b1f69b75SAndy Adamson 1 /* layout type */ + \ 378b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 379b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 380b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 38184c9dee3SChristoph Hellwig 1 /* notification bitmap, word 0 */) 382b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 383b1f69b75SAndy Adamson encode_stateid_maxsz) 384b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 385b1f69b75SAndy Adamson decode_stateid_maxsz + \ 386b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 387863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 388863a3c6cSAndy Adamson 2 /* offset */ + \ 389863a3c6cSAndy Adamson 2 /* length */ + \ 390863a3c6cSAndy Adamson 1 /* reclaim */ + \ 391863a3c6cSAndy Adamson encode_stateid_maxsz + \ 392863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 393863a3c6cSAndy Adamson 2 /* last byte written */ + \ 394863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 395863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 3965f919c9fSChristoph Hellwig 1 /* layoutupdate4 opaqueue len */) 3975f919c9fSChristoph Hellwig /* the actual content of layoutupdate4 should 3985f919c9fSChristoph Hellwig be allocated by drivers and spliced in 3995f919c9fSChristoph Hellwig using xdr_write_pages */ 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 + \ 4036669cb8bSTrond Myklebust 1 + \ 4046669cb8bSTrond Myklebust XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) 405cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 406cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 407fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 408fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 4097d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 4107d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4117d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 4129aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 4139aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4149f79fb48SAndy Adamson #define decode_free_stateid_maxsz (op_decode_hdr_maxsz) 4159b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 4169b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 4179b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 4189b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4199b7b9fccSAndy Adamson 4201da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4211da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4221da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4241da177e4SLinus Torvalds encode_putfh_maxsz + \ 4259104a55dSTrond Myklebust encode_read_maxsz) 4261da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4281da177e4SLinus Torvalds decode_putfh_maxsz + \ 4299104a55dSTrond Myklebust decode_read_maxsz) 4301da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4319b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4321da177e4SLinus Torvalds encode_putfh_maxsz + \ 4339104a55dSTrond Myklebust encode_readlink_maxsz) 4341da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4359b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4361da177e4SLinus Torvalds decode_putfh_maxsz + \ 4379104a55dSTrond Myklebust decode_readlink_maxsz) 4381da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4401da177e4SLinus Torvalds encode_putfh_maxsz + \ 4419104a55dSTrond Myklebust encode_readdir_maxsz) 4421da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4439b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4441da177e4SLinus Torvalds decode_putfh_maxsz + \ 4459104a55dSTrond Myklebust decode_readdir_maxsz) 4461da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4479b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4481da177e4SLinus Torvalds encode_putfh_maxsz + \ 4499104a55dSTrond Myklebust encode_write_maxsz + \ 4504f9838c7STrond Myklebust encode_getattr_maxsz) 4511da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4529b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4531da177e4SLinus Torvalds decode_putfh_maxsz + \ 4549104a55dSTrond Myklebust decode_write_maxsz + \ 4554f9838c7STrond Myklebust decode_getattr_maxsz) 4561da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4581da177e4SLinus Torvalds encode_putfh_maxsz + \ 4598582715eSTrond Myklebust encode_commit_maxsz) 4601da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4621da177e4SLinus Torvalds decode_putfh_maxsz + \ 4638582715eSTrond Myklebust decode_commit_maxsz) 4641da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4661da177e4SLinus Torvalds encode_putfh_maxsz + \ 4672cebf828STrond Myklebust encode_open_maxsz + \ 4686168f62cSWeston Andros Adamson encode_access_maxsz + \ 4692cebf828STrond Myklebust encode_getfh_maxsz + \ 4702cebf828STrond Myklebust encode_getattr_maxsz) 4711da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4729b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4731da177e4SLinus Torvalds decode_putfh_maxsz + \ 4742cebf828STrond Myklebust decode_open_maxsz + \ 4756168f62cSWeston Andros Adamson decode_access_maxsz + \ 4762cebf828STrond Myklebust decode_getfh_maxsz + \ 4772cebf828STrond Myklebust decode_getattr_maxsz) 4781da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4791da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4801da177e4SLinus Torvalds encode_putfh_maxsz + \ 4819104a55dSTrond Myklebust encode_open_confirm_maxsz) 4829104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4839104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4841da177e4SLinus Torvalds decode_putfh_maxsz + \ 4859104a55dSTrond Myklebust decode_open_confirm_maxsz) 4861da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4879b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4881da177e4SLinus Torvalds encode_putfh_maxsz + \ 4892cebf828STrond Myklebust encode_open_maxsz + \ 4906168f62cSWeston Andros Adamson encode_access_maxsz + \ 4912cebf828STrond Myklebust encode_getattr_maxsz) 4921da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4939b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4941da177e4SLinus Torvalds decode_putfh_maxsz + \ 4952cebf828STrond Myklebust decode_open_maxsz + \ 4966168f62cSWeston Andros Adamson decode_access_maxsz + \ 4972cebf828STrond Myklebust decode_getattr_maxsz) 4981da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4991da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5009b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5011da177e4SLinus Torvalds encode_putfh_maxsz + \ 5029104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 503516a6af6STrond Myklebust encode_getattr_maxsz) 5041da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 5051da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5069b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5071da177e4SLinus Torvalds decode_putfh_maxsz + \ 5089104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 509516a6af6STrond Myklebust decode_getattr_maxsz) 5101da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 5119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5121da177e4SLinus Torvalds encode_putfh_maxsz + \ 5139104a55dSTrond Myklebust encode_close_maxsz + \ 514516a6af6STrond Myklebust encode_getattr_maxsz) 5151da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 5169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5171da177e4SLinus Torvalds decode_putfh_maxsz + \ 5189104a55dSTrond Myklebust decode_close_maxsz + \ 519516a6af6STrond Myklebust decode_getattr_maxsz) 5201da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5221da177e4SLinus Torvalds encode_putfh_maxsz + \ 5239104a55dSTrond Myklebust encode_setattr_maxsz + \ 5241da177e4SLinus Torvalds encode_getattr_maxsz) 5251da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5269b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5271da177e4SLinus Torvalds decode_putfh_maxsz + \ 5289104a55dSTrond Myklebust decode_setattr_maxsz + \ 5299104a55dSTrond Myklebust decode_getattr_maxsz) 5301da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5319b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5321da177e4SLinus Torvalds encode_putfh_maxsz + \ 5331da177e4SLinus Torvalds encode_fsinfo_maxsz) 5341da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5359b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5361da177e4SLinus Torvalds decode_putfh_maxsz + \ 5371da177e4SLinus Torvalds decode_fsinfo_maxsz) 5381da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5391da177e4SLinus Torvalds encode_renew_maxsz) 5401da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5411da177e4SLinus Torvalds decode_renew_maxsz) 5421da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5431da177e4SLinus Torvalds encode_setclientid_maxsz) 5441da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5451da177e4SLinus Torvalds decode_setclientid_maxsz) 5461da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5471da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 54883ca7f5aSChuck Lever encode_setclientid_confirm_maxsz) 5491da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5501da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 55183ca7f5aSChuck Lever decode_setclientid_confirm_maxsz) 5521da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5539b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5541da177e4SLinus Torvalds encode_putfh_maxsz + \ 5559104a55dSTrond Myklebust encode_lock_maxsz) 5561da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5579b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5581da177e4SLinus Torvalds decode_putfh_maxsz + \ 5599104a55dSTrond Myklebust decode_lock_maxsz) 5601da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5619b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5621da177e4SLinus Torvalds encode_putfh_maxsz + \ 5639104a55dSTrond Myklebust encode_lockt_maxsz) 5649104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5659b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5669104a55dSTrond Myklebust decode_putfh_maxsz + \ 5679104a55dSTrond Myklebust decode_lockt_maxsz) 5681da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5701da177e4SLinus Torvalds encode_putfh_maxsz + \ 5719104a55dSTrond Myklebust encode_locku_maxsz) 5721da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5739b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5741da177e4SLinus Torvalds decode_putfh_maxsz + \ 5759104a55dSTrond Myklebust decode_locku_maxsz) 576d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 577d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 578d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 579d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 580d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 581d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5821da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5839b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5841da177e4SLinus Torvalds encode_putfh_maxsz + \ 58576b32999STrond Myklebust encode_access_maxsz + \ 58676b32999STrond Myklebust encode_getattr_maxsz) 5871da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5889b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5891da177e4SLinus Torvalds decode_putfh_maxsz + \ 59076b32999STrond Myklebust decode_access_maxsz + \ 59176b32999STrond Myklebust decode_getattr_maxsz) 5921da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5939b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5941da177e4SLinus Torvalds encode_putfh_maxsz + \ 59544c99933SChuck Lever encode_getattr_maxsz + \ 59644c99933SChuck Lever encode_renew_maxsz) 5971da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5991da177e4SLinus Torvalds decode_putfh_maxsz + \ 60044c99933SChuck Lever decode_getattr_maxsz + \ 60144c99933SChuck Lever decode_renew_maxsz) 6021da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 6039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6041da177e4SLinus Torvalds encode_putfh_maxsz + \ 6051da177e4SLinus Torvalds encode_lookup_maxsz + \ 6061da177e4SLinus Torvalds encode_getattr_maxsz + \ 6071da177e4SLinus Torvalds encode_getfh_maxsz) 6081da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 6099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6101da177e4SLinus Torvalds decode_putfh_maxsz + \ 611e6889620STrond Myklebust decode_lookup_maxsz + \ 6121da177e4SLinus Torvalds decode_getattr_maxsz + \ 6131da177e4SLinus Torvalds decode_getfh_maxsz) 6141da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 6159b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6161da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6171da177e4SLinus Torvalds encode_getattr_maxsz + \ 6181da177e4SLinus Torvalds encode_getfh_maxsz) 6191da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6209b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6211da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6221da177e4SLinus Torvalds decode_getattr_maxsz + \ 6231da177e4SLinus Torvalds decode_getfh_maxsz) 6241da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6259b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6261da177e4SLinus Torvalds encode_putfh_maxsz + \ 627778d2817STrond Myklebust encode_remove_maxsz) 6281da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6299b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6301da177e4SLinus Torvalds decode_putfh_maxsz + \ 631778d2817STrond Myklebust decode_remove_maxsz) 6321da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6341da177e4SLinus Torvalds encode_putfh_maxsz + \ 6351da177e4SLinus Torvalds encode_savefh_maxsz + \ 6361da177e4SLinus Torvalds encode_putfh_maxsz + \ 637778d2817STrond Myklebust encode_rename_maxsz) 6381da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6401da177e4SLinus Torvalds decode_putfh_maxsz + \ 6411da177e4SLinus Torvalds decode_savefh_maxsz + \ 6421da177e4SLinus Torvalds decode_putfh_maxsz + \ 643778d2817STrond Myklebust decode_rename_maxsz) 6441da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6461da177e4SLinus Torvalds encode_putfh_maxsz + \ 6471da177e4SLinus Torvalds encode_savefh_maxsz + \ 6481da177e4SLinus Torvalds encode_putfh_maxsz + \ 64991ba2eeeSTrond Myklebust encode_link_maxsz + \ 65091ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 651a9f6991bSTrond Myklebust encode_getattr_maxsz) 6521da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6541da177e4SLinus Torvalds decode_putfh_maxsz + \ 6551da177e4SLinus Torvalds decode_savefh_maxsz + \ 6561da177e4SLinus Torvalds decode_putfh_maxsz + \ 65791ba2eeeSTrond Myklebust decode_link_maxsz + \ 65891ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 65991ba2eeeSTrond Myklebust decode_getattr_maxsz) 6601da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6619b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6621da177e4SLinus Torvalds encode_putfh_maxsz + \ 6631da177e4SLinus Torvalds encode_symlink_maxsz + \ 6641da177e4SLinus Torvalds encode_getattr_maxsz + \ 6651da177e4SLinus Torvalds encode_getfh_maxsz) 6661da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6679b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6681da177e4SLinus Torvalds decode_putfh_maxsz + \ 6691da177e4SLinus Torvalds decode_symlink_maxsz + \ 6701da177e4SLinus Torvalds decode_getattr_maxsz + \ 6711da177e4SLinus Torvalds decode_getfh_maxsz) 6721da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6739b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6741da177e4SLinus Torvalds encode_putfh_maxsz + \ 6751da177e4SLinus Torvalds encode_create_maxsz + \ 67656ae19f3STrond Myklebust encode_getfh_maxsz + \ 67756ae19f3STrond Myklebust encode_getattr_maxsz) 6781da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6799b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6801da177e4SLinus Torvalds decode_putfh_maxsz + \ 6811da177e4SLinus Torvalds decode_create_maxsz + \ 68256ae19f3STrond Myklebust decode_getfh_maxsz + \ 68356ae19f3STrond Myklebust decode_getattr_maxsz) 6841da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6861da177e4SLinus Torvalds encode_putfh_maxsz + \ 6871da177e4SLinus Torvalds encode_getattr_maxsz) 6881da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6899b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6901da177e4SLinus Torvalds decode_putfh_maxsz + \ 6911da177e4SLinus Torvalds decode_getattr_maxsz) 6921da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6939b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6941da177e4SLinus Torvalds encode_putfh_maxsz + \ 6959104a55dSTrond Myklebust encode_statfs_maxsz) 6961da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6981da177e4SLinus Torvalds decode_putfh_maxsz + \ 6999104a55dSTrond Myklebust decode_statfs_maxsz) 7001da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 7019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 702ab91f264STrond Myklebust encode_putfh_maxsz + \ 7031da177e4SLinus Torvalds encode_getattr_maxsz) 7041da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 7059b7b9fccSAndy Adamson decode_sequence_maxsz + \ 706ab91f264STrond Myklebust decode_putfh_maxsz + \ 7071da177e4SLinus Torvalds decode_getattr_maxsz) 7081da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 7099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7101da177e4SLinus Torvalds encode_putfh_maxsz + \ 711fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 712fa178f29STrond Myklebust encode_getattr_maxsz) 7131da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7149b7b9fccSAndy Adamson decode_sequence_maxsz + \ 715fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 716fa178f29STrond Myklebust decode_getattr_maxsz) 717029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7189b7b9fccSAndy Adamson encode_sequence_maxsz + \ 719029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7209104a55dSTrond Myklebust encode_getacl_maxsz) 721029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7229b7b9fccSAndy Adamson decode_sequence_maxsz + \ 723029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7249104a55dSTrond Myklebust decode_getacl_maxsz) 72523ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7269b7b9fccSAndy Adamson encode_sequence_maxsz + \ 72723ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7289104a55dSTrond Myklebust encode_setacl_maxsz) 72923ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7309b7b9fccSAndy Adamson decode_sequence_maxsz + \ 73123ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7329104a55dSTrond Myklebust decode_setacl_maxsz) 733683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 734683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 736683b57b4STrond Myklebust encode_putfh_maxsz + \ 737e6889620STrond Myklebust encode_lookup_maxsz + \ 738b03d735bSChuck Lever encode_fs_locations_maxsz + \ 739b03d735bSChuck Lever encode_renew_maxsz) 740683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 741683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 743683b57b4STrond Myklebust decode_putfh_maxsz + \ 744e6889620STrond Myklebust decode_lookup_maxsz + \ 745b03d735bSChuck Lever decode_fs_locations_maxsz + \ 746b03d735bSChuck Lever decode_renew_maxsz) 7475a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7485a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7495a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7505a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7515a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7525a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7535a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7545a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 75544c99933SChuck Lever #define NFS4_enc_fsid_present_sz \ 75644c99933SChuck Lever (compound_encode_hdr_maxsz + \ 75744c99933SChuck Lever encode_sequence_maxsz + \ 75844c99933SChuck Lever encode_putfh_maxsz + \ 75944c99933SChuck Lever encode_getfh_maxsz + \ 76044c99933SChuck Lever encode_renew_maxsz) 76144c99933SChuck Lever #define NFS4_dec_fsid_present_sz \ 76244c99933SChuck Lever (compound_decode_hdr_maxsz + \ 76344c99933SChuck Lever decode_sequence_maxsz + \ 76444c99933SChuck Lever decode_putfh_maxsz + \ 76544c99933SChuck Lever decode_getfh_maxsz + \ 76644c99933SChuck Lever decode_renew_maxsz) 76799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7687c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7697c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7707c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7717c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7727c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7737c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 77499fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 77599fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 77699fe60d0SBenny Halevy encode_exchange_id_maxsz) 77799fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 77899fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 77999fe60d0SBenny Halevy decode_exchange_id_maxsz) 780fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 781fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 782fc931582SAndy Adamson encode_create_session_maxsz) 783fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 784fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 785fc931582SAndy Adamson decode_create_session_maxsz) 7860f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7870f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7880f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7890f3e66c6SAndy Adamson decode_destroy_session_maxsz) 79066245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 79166245539STrond Myklebust encode_destroy_clientid_maxsz) 79266245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 79366245539STrond Myklebust decode_destroy_clientid_maxsz) 794fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 795fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 796fc01cea9SAndy Adamson encode_sequence_maxsz) 797fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 798fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 799fc01cea9SAndy Adamson decode_sequence_maxsz) 8002050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 8012050f0ccSAndy Adamson encode_sequence_maxsz + \ 8022050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 8032050f0ccSAndy Adamson encode_fsinfo_maxsz) 8042050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 8052050f0ccSAndy Adamson decode_sequence_maxsz + \ 8062050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 8072050f0ccSAndy Adamson decode_fsinfo_maxsz) 80818019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 80918019753SRicardo Labiaga encode_sequence_maxsz + \ 81018019753SRicardo Labiaga encode_reclaim_complete_maxsz) 81118019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 81218019753SRicardo Labiaga decode_sequence_maxsz + \ 81318019753SRicardo Labiaga decode_reclaim_complete_maxsz) 814b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 815b1f69b75SAndy Adamson encode_sequence_maxsz +\ 816b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 817b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 818b1f69b75SAndy Adamson decode_sequence_maxsz + \ 819b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 820b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 821b1f69b75SAndy Adamson encode_sequence_maxsz + \ 822b1f69b75SAndy Adamson encode_putfh_maxsz + \ 823b1f69b75SAndy Adamson encode_layoutget_maxsz) 824b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 825b1f69b75SAndy Adamson decode_sequence_maxsz + \ 826b1f69b75SAndy Adamson decode_putfh_maxsz + \ 827b1f69b75SAndy Adamson decode_layoutget_maxsz) 828863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 829863a3c6cSAndy Adamson encode_sequence_maxsz +\ 830863a3c6cSAndy Adamson encode_putfh_maxsz + \ 831863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 832863a3c6cSAndy Adamson encode_getattr_maxsz) 833863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 834863a3c6cSAndy Adamson decode_sequence_maxsz + \ 835863a3c6cSAndy Adamson decode_putfh_maxsz + \ 836863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 837863a3c6cSAndy Adamson decode_getattr_maxsz) 838cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 839cbe82603SBenny Halevy encode_sequence_maxsz + \ 840cbe82603SBenny Halevy encode_putfh_maxsz + \ 841cbe82603SBenny Halevy encode_layoutreturn_maxsz) 842cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 843cbe82603SBenny Halevy decode_sequence_maxsz + \ 844cbe82603SBenny Halevy decode_putfh_maxsz + \ 845cbe82603SBenny Halevy decode_layoutreturn_maxsz) 846fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 847fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 848fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 849fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 850fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 851fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 852fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 853fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8547d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8557d974794SBryan Schumaker encode_sequence_maxsz + \ 8567d974794SBryan Schumaker encode_test_stateid_maxsz) 8577d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8587d974794SBryan Schumaker decode_sequence_maxsz + \ 8597d974794SBryan Schumaker decode_test_stateid_maxsz) 8609aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8619aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8629aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8639aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8649aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8659aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8662449ea2eSAlexandros Batsakis 8672449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8682449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8692449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8702449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8712449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8722449ea2eSAlexandros Batsakis XDR_UNIT); 8732449ea2eSAlexandros Batsakis 8742449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8752449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8762449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8772449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8782449ea2eSAlexandros Batsakis XDR_UNIT); 879f1c097beSAndy Adamson 880f1c097beSAndy Adamson const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH + 881f1c097beSAndy Adamson compound_decode_hdr_maxsz + 882f1c097beSAndy Adamson decode_sequence_maxsz) * 883f1c097beSAndy Adamson XDR_UNIT); 884f1c097beSAndy Adamson EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead); 88599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8861da177e4SLinus Torvalds 887bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 888bca79478STrond Myklebust [NF4BAD] = 0, 889bca79478STrond Myklebust [NF4REG] = S_IFREG, 890bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 891bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 892bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 893bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 894bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 895bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 896bca79478STrond Myklebust [NF4ATTRDIR] = 0, 897bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8981da177e4SLinus Torvalds }; 8991da177e4SLinus Torvalds 9001da177e4SLinus Torvalds struct compound_hdr { 9011da177e4SLinus Torvalds int32_t status; 9021da177e4SLinus Torvalds uint32_t nops; 903d017931cSAndy Adamson __be32 * nops_p; 9041da177e4SLinus Torvalds uint32_t taglen; 9051da177e4SLinus Torvalds char * tag; 9060c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 90766cc0429SBenny Halevy u32 minorversion; 9081da177e4SLinus Torvalds }; 9091da177e4SLinus Torvalds 91013c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 91113c65ce9SBenny Halevy { 91213c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 91313c65ce9SBenny Halevy BUG_ON(!p); 91413c65ce9SBenny Halevy return p; 91513c65ce9SBenny Halevy } 9161da177e4SLinus Torvalds 917cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 918cb17e556STrond Myklebust { 919cb17e556STrond Myklebust __be32 *p; 920cb17e556STrond Myklebust 921cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 922cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 923cb17e556STrond Myklebust } 924cb17e556STrond Myklebust 9251da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9261da177e4SLinus Torvalds { 9278687b63aSAl Viro __be32 *p; 9281da177e4SLinus Torvalds 9296fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 9301da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 9311da177e4SLinus Torvalds } 9321da177e4SLinus Torvalds 9334ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9344ade9821STrond Myklebust { 9354ade9821STrond Myklebust __be32 *p; 9364ade9821STrond Myklebust 9374ade9821STrond Myklebust p = reserve_space(xdr, 4); 9384ade9821STrond Myklebust *p = cpu_to_be32(n); 9394ade9821STrond Myklebust } 9404ade9821STrond Myklebust 941ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 942ff2eb681STrond Myklebust { 943ff2eb681STrond Myklebust __be32 *p; 944ff2eb681STrond Myklebust 945ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 946ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 947ff2eb681STrond Myklebust } 948ff2eb681STrond Myklebust 9494ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9504ade9821STrond Myklebust const struct nfs_seqid *seqid) 9514ade9821STrond Myklebust { 952a6796419STrond Myklebust if (seqid != NULL) 9534ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 954a6796419STrond Myklebust else 955a6796419STrond Myklebust encode_uint32(xdr, 0); 9564ade9821STrond Myklebust } 9574ade9821STrond Myklebust 9580c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9590c4e8c18SBenny Halevy struct rpc_rqst *req, 9600c4e8c18SBenny Halevy struct compound_hdr *hdr) 9611da177e4SLinus Torvalds { 9628687b63aSAl Viro __be32 *p; 963a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9640c4e8c18SBenny Halevy 9650c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9660c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9670c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9680c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9691da177e4SLinus Torvalds 9707fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 9716fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9726fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 973e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 974d017931cSAndy Adamson hdr->nops_p = p; 97534558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 976d017931cSAndy Adamson } 977d017931cSAndy Adamson 978ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 979ab19b481STrond Myklebust uint32_t replen, 980ab19b481STrond Myklebust struct compound_hdr *hdr) 981ab19b481STrond Myklebust { 982ab19b481STrond Myklebust encode_uint32(xdr, op); 983ab19b481STrond Myklebust hdr->nops++; 984ab19b481STrond Myklebust hdr->replen += replen; 985ab19b481STrond Myklebust } 986ab19b481STrond Myklebust 987d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 988d017931cSAndy Adamson { 9897fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 990d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9911da177e4SLinus Torvalds } 9921da177e4SLinus Torvalds 993ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 994ea9d23f5STrond Myklebust { 9952d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 996ea9d23f5STrond Myklebust } 997ea9d23f5STrond Myklebust 9981da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9991da177e4SLinus Torvalds { 1000cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 10011da177e4SLinus Torvalds } 10021da177e4SLinus Torvalds 1003aa9c2669SDavid Quigley static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, 1004aa9c2669SDavid Quigley const struct nfs4_label *label, 10055334c5bdSKinglong Mee const struct nfs_server *server, 10065334c5bdSKinglong Mee bool excl_check) 10071da177e4SLinus Torvalds { 10081da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 10091da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 10101da177e4SLinus Torvalds int owner_namelen = 0; 10111da177e4SLinus Torvalds int owner_grouplen = 0; 10128687b63aSAl Viro __be32 *p; 1013d7067b2dSTrond Myklebust unsigned i; 1014d7067b2dSTrond Myklebust uint32_t len = 0; 1015d7067b2dSTrond Myklebust uint32_t bmval_len; 1016d7067b2dSTrond Myklebust uint32_t bmval[3] = { 0 }; 10171da177e4SLinus Torvalds 10181da177e4SLinus Torvalds /* 10191da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 10201da177e4SLinus Torvalds * In the worst-case, this would be 1021a09df2caSDavid Quigley * 16(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 1022a09df2caSDavid Quigley * = 40 bytes, plus any contribution from variable-length fields 102323ec6965SJ. Bruce Fields * such as owner/group. 10241da177e4SLinus Torvalds */ 1025d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_SIZE) { 1026d7067b2dSTrond Myklebust bmval[0] |= FATTR4_WORD0_SIZE; 10271da177e4SLinus Torvalds len += 8; 1028d7067b2dSTrond Myklebust } 1029d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MODE) { 1030d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_MODE; 10311da177e4SLinus Torvalds len += 4; 1032d7067b2dSTrond Myklebust } 10331da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 1034e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10351da177e4SLinus Torvalds if (owner_namelen < 0) { 1036fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1037e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 10381da177e4SLinus Torvalds /* XXX */ 10391da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10401da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10411da177e4SLinus Torvalds /* goto out; */ 10421da177e4SLinus Torvalds } 1043d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER; 10441da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10451da177e4SLinus Torvalds } 10461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1047e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10481da177e4SLinus Torvalds if (owner_grouplen < 0) { 1049fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1050e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 10511da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10521da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10531da177e4SLinus Torvalds /* goto out; */ 10541da177e4SLinus Torvalds } 1055d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER_GROUP; 10561da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10571da177e4SLinus Torvalds } 1058d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_ATIME_SET) { 1059d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 10601da177e4SLinus Torvalds len += 16; 1061d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_ATIME) { 1062d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 10631da177e4SLinus Torvalds len += 4; 1064d7067b2dSTrond Myklebust } 1065d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MTIME_SET) { 1066d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 10671da177e4SLinus Torvalds len += 16; 1068d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_MTIME) { 1069d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 10701da177e4SLinus Torvalds len += 4; 1071d7067b2dSTrond Myklebust } 10725334c5bdSKinglong Mee 10735334c5bdSKinglong Mee if (excl_check) { 10745334c5bdSKinglong Mee const u32 *excl_bmval = server->exclcreat_bitmask; 10755334c5bdSKinglong Mee bmval[0] &= excl_bmval[0]; 10765334c5bdSKinglong Mee bmval[1] &= excl_bmval[1]; 10775334c5bdSKinglong Mee bmval[2] &= excl_bmval[2]; 10785334c5bdSKinglong Mee 10795334c5bdSKinglong Mee if (!(excl_bmval[2] & FATTR4_WORD2_SECURITY_LABEL)) 10805334c5bdSKinglong Mee label = NULL; 10815334c5bdSKinglong Mee } 10825334c5bdSKinglong Mee 1083b4a2cf76STrond Myklebust if (label) { 1084b4a2cf76STrond Myklebust len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2); 1085d7067b2dSTrond Myklebust bmval[2] |= FATTR4_WORD2_SECURITY_LABEL; 1086d7067b2dSTrond Myklebust } 1087d7067b2dSTrond Myklebust 1088d7067b2dSTrond Myklebust if (bmval[2] != 0) 1089b4a2cf76STrond Myklebust bmval_len = 3; 1090d7067b2dSTrond Myklebust else if (bmval[1] != 0) 1091d7067b2dSTrond Myklebust bmval_len = 2; 1092d7067b2dSTrond Myklebust else 1093d7067b2dSTrond Myklebust bmval_len = 1; 1094b4a2cf76STrond Myklebust 1095d7067b2dSTrond Myklebust p = reserve_space(xdr, 4 + (bmval_len << 2) + 4 + len); 10961da177e4SLinus Torvalds 1097b4a2cf76STrond Myklebust *p++ = cpu_to_be32(bmval_len); 1098d7067b2dSTrond Myklebust for (i = 0; i < bmval_len; i++) 1099d7067b2dSTrond Myklebust *p++ = cpu_to_be32(bmval[i]); 1100d7067b2dSTrond Myklebust *p++ = cpu_to_be32(len); 11011da177e4SLinus Torvalds 1102d7067b2dSTrond Myklebust if (bmval[0] & FATTR4_WORD0_SIZE) 1103b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 1104d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_MODE) 1105e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1106d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER) 1107811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 1108d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) 1109811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 1110d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) { 11111da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 1112e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1113042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_atime.tv_sec); 1114d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 1115d7067b2dSTrond Myklebust } else 1116e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11171da177e4SLinus Torvalds } 1118d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) { 11191da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 1120e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1121042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_mtime.tv_sec); 1122e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 1123d7067b2dSTrond Myklebust } else 1124e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11251da177e4SLinus Torvalds } 1126d7067b2dSTrond Myklebust if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) { 1127aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->lfs); 1128aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->pi); 1129aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->len); 1130aa9c2669SDavid Quigley p = xdr_encode_opaque_fixed(p, label->label, label->len); 1131aa9c2669SDavid Quigley } 11321da177e4SLinus Torvalds 11331da177e4SLinus Torvalds /* out: */ 11341da177e4SLinus Torvalds } 11351da177e4SLinus Torvalds 1136cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 11371da177e4SLinus Torvalds { 1138475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1139475d4ba0STrond Myklebust encode_uint32(xdr, access); 11401da177e4SLinus Torvalds } 11411da177e4SLinus Torvalds 1142cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11431da177e4SLinus Torvalds { 1144ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11454ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1146566fcec6STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 11471da177e4SLinus Torvalds } 11481da177e4SLinus Torvalds 11490b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11501da177e4SLinus Torvalds { 11518687b63aSAl Viro __be32 *p; 11521da177e4SLinus Torvalds 1153475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1154475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1155b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 115634558513SBenny Halevy *p = cpu_to_be32(args->count); 11571da177e4SLinus Torvalds } 11581da177e4SLinus Torvalds 1159cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11601da177e4SLinus Torvalds { 11618687b63aSAl Viro __be32 *p; 11621da177e4SLinus Torvalds 1163475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1164475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11651da177e4SLinus Torvalds 11661da177e4SLinus Torvalds switch (create->ftype) { 11671da177e4SLinus Torvalds case NF4LNK: 116813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 116934558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 11702fcc213aSChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, 11712fcc213aSChuck Lever create->u.symlink.len); 11722fcc213aSChuck Lever xdr->buf->flags |= XDRBUF_WRITE; 11731da177e4SLinus Torvalds break; 11741da177e4SLinus Torvalds 11751da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 117613c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1177e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 117834558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11791da177e4SLinus Torvalds break; 11801da177e4SLinus Torvalds 11811da177e4SLinus Torvalds default: 11821da177e4SLinus Torvalds break; 11831da177e4SLinus Torvalds } 11841da177e4SLinus Torvalds 1185811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 11865334c5bdSKinglong Mee encode_attrs(xdr, create->attrs, create->label, create->server, false); 11871da177e4SLinus Torvalds } 11881da177e4SLinus Torvalds 1189cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, 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, 8); 1195e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 119634558513SBenny Halevy *p = cpu_to_be32(bitmap); 11971da177e4SLinus Torvalds } 11981da177e4SLinus Torvalds 1199cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 12001da177e4SLinus Torvalds { 12018687b63aSAl Viro __be32 *p; 12021da177e4SLinus Torvalds 1203475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1204475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1205e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1206e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 120734558513SBenny Halevy *p = cpu_to_be32(bm1); 12081da177e4SLinus Torvalds } 12091da177e4SLinus Torvalds 1210dae100c2SFred Isaman static void 1211dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1212dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1213dae100c2SFred Isaman struct compound_hdr *hdr) 1214dae100c2SFred Isaman { 1215dae100c2SFred Isaman __be32 *p; 1216dae100c2SFred Isaman 1217ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1218dae100c2SFred Isaman if (bm2) { 1219dae100c2SFred Isaman p = reserve_space(xdr, 16); 1220dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1221dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1222dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1223dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1224dae100c2SFred Isaman } else if (bm1) { 1225dae100c2SFred Isaman p = reserve_space(xdr, 12); 1226dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1227dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1228dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1229dae100c2SFred Isaman } else { 1230dae100c2SFred Isaman p = reserve_space(xdr, 8); 1231dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1232dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1233dae100c2SFred Isaman } 1234dae100c2SFred Isaman } 1235dae100c2SFred Isaman 1236cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12371da177e4SLinus Torvalds { 1238a09df2caSDavid Quigley encode_getattr_three(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1239a09df2caSDavid Quigley bitmask[1] & nfs4_fattr_bitmap[1], 1240a09df2caSDavid Quigley bitmask[2] & nfs4_fattr_bitmap[2], 1241a09df2caSDavid Quigley hdr); 12421da177e4SLinus Torvalds } 12431da177e4SLinus Torvalds 124488034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 12451549210fSTrond Myklebust const u32 *open_bitmap, 124688034c3dSAndy Adamson struct compound_hdr *hdr) 124788034c3dSAndy Adamson { 124888034c3dSAndy Adamson encode_getattr_three(xdr, 12491549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12501549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12511549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 125288034c3dSAndy Adamson hdr); 125388034c3dSAndy Adamson } 125488034c3dSAndy Adamson 1255cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12561da177e4SLinus Torvalds { 1257dae100c2SFred Isaman encode_getattr_three(xdr, 1258dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1259dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1260dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1261dae100c2SFred Isaman hdr); 12621da177e4SLinus Torvalds } 12631da177e4SLinus Torvalds 1264cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1265830b8e33SManoj Naik { 1266cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1267cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1268830b8e33SManoj Naik } 1269830b8e33SManoj Naik 1270cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12711da177e4SLinus Torvalds { 1272ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12731da177e4SLinus Torvalds } 12741da177e4SLinus Torvalds 1275cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12761da177e4SLinus Torvalds { 1277ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12786fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12791da177e4SLinus Torvalds } 12801da177e4SLinus Torvalds 1281911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1282911d1aafSTrond Myklebust { 1283f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1284911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1285911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1286911d1aafSTrond Myklebust } 1287911d1aafSTrond Myklebust 1288911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1289911d1aafSTrond Myklebust { 1290911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1291911d1aafSTrond Myklebust return ~(uint64_t)0; 1292911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1293911d1aafSTrond Myklebust } 1294911d1aafSTrond Myklebust 1295daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1296daccbdedSTrond Myklebust { 1297daccbdedSTrond Myklebust __be32 *p; 1298daccbdedSTrond Myklebust 1299d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1300daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1301d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1302daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1303d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1304daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1305daccbdedSTrond Myklebust } 1306daccbdedSTrond Myklebust 13071da177e4SLinus Torvalds /* 13081da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 13091da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 13101da177e4SLinus Torvalds */ 1311cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 13121da177e4SLinus Torvalds { 13138687b63aSAl Viro __be32 *p; 13141da177e4SLinus Torvalds 1315475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1316475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1317e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1318e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1319b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1320b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 132134558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1322911d1aafSTrond Myklebust if (args->new_lock_owner){ 13234ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1324425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->open_stateid); 13254ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1326daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13271da177e4SLinus Torvalds } 13281da177e4SLinus Torvalds else { 1329425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->lock_stateid); 13304ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 13311da177e4SLinus Torvalds } 13321da177e4SLinus Torvalds } 13331da177e4SLinus Torvalds 1334cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 13351da177e4SLinus Torvalds { 13368687b63aSAl Viro __be32 *p; 13371da177e4SLinus Torvalds 1338475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1339475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1340e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1341b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1342b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1343daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13441da177e4SLinus Torvalds } 13451da177e4SLinus Torvalds 1346cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13471da177e4SLinus Torvalds { 13488687b63aSAl Viro __be32 *p; 13491da177e4SLinus Torvalds 1350475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1351475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13524ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1353425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1354ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1355b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 135634558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13571da177e4SLinus Torvalds } 13581da177e4SLinus Torvalds 1359d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1360d3c7b7ccSTrond Myklebust { 1361ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1362d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1363d3c7b7ccSTrond Myklebust } 1364d3c7b7ccSTrond Myklebust 1365cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13661da177e4SLinus Torvalds { 1367ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13686fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13691da177e4SLinus Torvalds } 13701da177e4SLinus Torvalds 13716ae37339STrond Myklebust static void encode_share_access(struct xdr_stream *xdr, u32 share_access) 13721da177e4SLinus Torvalds { 13738687b63aSAl Viro __be32 *p; 13741da177e4SLinus Torvalds 137513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 13766ae37339STrond Myklebust *p++ = cpu_to_be32(share_access); 137734558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13781da177e4SLinus Torvalds } 13791da177e4SLinus Torvalds 13801da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13811da177e4SLinus Torvalds { 13828687b63aSAl Viro __be32 *p; 13831da177e4SLinus Torvalds /* 13841da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13851da177e4SLinus Torvalds * owner 4 = 32 13861da177e4SLinus Torvalds */ 13874ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 13886ae37339STrond Myklebust encode_share_access(xdr, arg->share_access); 138995b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1390b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 139195b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 139293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1393d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 139495b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 139595b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13961da177e4SLinus Torvalds } 13971da177e4SLinus Torvalds 13981da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13991da177e4SLinus Torvalds { 14008687b63aSAl Viro __be32 *p; 14011da177e4SLinus Torvalds 140213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 1403549b19ccSTrond Myklebust switch(arg->createmode) { 1404549b19ccSTrond Myklebust case NFS4_CREATE_UNCHECKED: 140534558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 14065334c5bdSKinglong Mee encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false); 14071da177e4SLinus Torvalds break; 1408549b19ccSTrond Myklebust case NFS4_CREATE_GUARDED: 14094882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 14105334c5bdSKinglong Mee encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false); 1411549b19ccSTrond Myklebust break; 1412549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE: 1413549b19ccSTrond Myklebust *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 1414549b19ccSTrond Myklebust encode_nfs4_verifier(xdr, &arg->u.verifier); 1415549b19ccSTrond Myklebust break; 1416549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE4_1: 14174882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 14184882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 14195334c5bdSKinglong Mee encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, true); 14204882ef72SAlexandros Batsakis } 14214882ef72SAlexandros Batsakis } 14221da177e4SLinus Torvalds 14231da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14241da177e4SLinus Torvalds { 14258687b63aSAl Viro __be32 *p; 14261da177e4SLinus Torvalds 142713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14281da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14291da177e4SLinus Torvalds case 0: 143034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14311da177e4SLinus Torvalds break; 14321da177e4SLinus Torvalds default: 143334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14341da177e4SLinus Torvalds encode_createmode(xdr, arg); 14351da177e4SLinus Torvalds } 14361da177e4SLinus Torvalds } 14371da177e4SLinus Torvalds 1438bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14391da177e4SLinus Torvalds { 14408687b63aSAl Viro __be32 *p; 14411da177e4SLinus Torvalds 144213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14431da177e4SLinus Torvalds switch (delegation_type) { 14441da177e4SLinus Torvalds case 0: 144534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14461da177e4SLinus Torvalds break; 14471da177e4SLinus Torvalds case FMODE_READ: 144834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14491da177e4SLinus Torvalds break; 14501da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 145134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14521da177e4SLinus Torvalds break; 14531da177e4SLinus Torvalds default: 14541da177e4SLinus Torvalds BUG(); 14551da177e4SLinus Torvalds } 14561da177e4SLinus Torvalds } 14571da177e4SLinus Torvalds 14581da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14591da177e4SLinus Torvalds { 14608687b63aSAl Viro __be32 *p; 14611da177e4SLinus Torvalds 146213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14641da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14651da177e4SLinus Torvalds } 14661da177e4SLinus Torvalds 1467bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14681da177e4SLinus Torvalds { 14698687b63aSAl Viro __be32 *p; 14701da177e4SLinus Torvalds 147113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14731da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14741da177e4SLinus Torvalds } 14751da177e4SLinus Torvalds 14761da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14771da177e4SLinus Torvalds { 14788687b63aSAl Viro __be32 *p; 14791da177e4SLinus Torvalds 1480ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1481ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1482ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14831da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14841da177e4SLinus Torvalds } 14851da177e4SLinus Torvalds 1486d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1487d9fc6619STrond Myklebust { 1488d9fc6619STrond Myklebust __be32 *p; 1489d9fc6619STrond Myklebust 1490d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1491d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1492d9fc6619STrond Myklebust } 1493d9fc6619STrond Myklebust 1494d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1495d9fc6619STrond Myklebust { 1496d9fc6619STrond Myklebust __be32 *p; 1497d9fc6619STrond Myklebust 1498d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1499d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1500d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1501d9fc6619STrond Myklebust } 1502d9fc6619STrond Myklebust 1503cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 15041da177e4SLinus Torvalds { 1505ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 15061da177e4SLinus Torvalds encode_openhdr(xdr, arg); 15071da177e4SLinus Torvalds encode_opentype(xdr, arg); 15081da177e4SLinus Torvalds switch (arg->claim) { 15091da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 15101da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 15111da177e4SLinus Torvalds break; 15121da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 15131da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 15141da177e4SLinus Torvalds break; 15151da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 15161da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 15171da177e4SLinus Torvalds break; 1518d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1519d9fc6619STrond Myklebust encode_claim_fh(xdr); 1520d9fc6619STrond Myklebust break; 1521d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1522d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1523d9fc6619STrond Myklebust break; 15241da177e4SLinus Torvalds default: 15251da177e4SLinus Torvalds BUG(); 15261da177e4SLinus Torvalds } 15271da177e4SLinus Torvalds } 15281da177e4SLinus Torvalds 1529cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15301da177e4SLinus Torvalds { 1531ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1532ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15334ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15341da177e4SLinus Torvalds } 15351da177e4SLinus Torvalds 1536cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15371da177e4SLinus Torvalds { 1538ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1539566fcec6STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 15404ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15416ae37339STrond Myklebust encode_share_access(xdr, arg->share_access); 15421da177e4SLinus Torvalds } 15431da177e4SLinus Torvalds 1544cf8cdbe5SAndy Adamson static void 1545d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15461da177e4SLinus Torvalds { 1547ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15486fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15491da177e4SLinus Torvalds } 15501da177e4SLinus Torvalds 1551cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15521da177e4SLinus Torvalds { 1553ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15541da177e4SLinus Torvalds } 15551da177e4SLinus Torvalds 15563c6b899cSAnna Schumaker static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 15573c6b899cSAnna Schumaker struct compound_hdr *hdr) 15581da177e4SLinus Torvalds { 15598687b63aSAl Viro __be32 *p; 15601da177e4SLinus Torvalds 1561ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15629b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 15631da177e4SLinus Torvalds 156413c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1565b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 156634558513SBenny Halevy *p = cpu_to_be32(args->count); 15671da177e4SLinus Torvalds } 15681da177e4SLinus Torvalds 1569cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15701da177e4SLinus Torvalds { 1571aa9c2669SDavid Quigley uint32_t attrs[3] = { 157228331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 157328331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 157428331a46STrond Myklebust }; 15756f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1576cd93710eSChuck Lever __be32 *p, verf[2]; 1577d204c5d2STrond Myklebust uint32_t attrlen = 0; 1578d204c5d2STrond Myklebust unsigned int i; 15791da177e4SLinus Torvalds 158082f2e547SBryan Schumaker if (readdir->plus) { 158182f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 158228331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 158382f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 158482f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 158582f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 158682f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 1587d204c5d2STrond Myklebust attrs[2] |= FATTR4_WORD2_SECURITY_LABEL; 15886f7a35bdSTrond Myklebust dircount >>= 1; 158982f2e547SBryan Schumaker } 159028331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 159128331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 159228331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 1593d204c5d2STrond Myklebust for (i = 0; i < ARRAY_SIZE(attrs); i++) { 1594d204c5d2STrond Myklebust attrs[i] &= readdir->bitmask[i]; 1595d204c5d2STrond Myklebust if (attrs[i] != 0) 1596d204c5d2STrond Myklebust attrlen = i+1; 1597d204c5d2STrond Myklebust } 15986f7a35bdSTrond Myklebust 1599475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1600ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1601cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1602d204c5d2STrond Myklebust p = reserve_space(xdr, 12 + (attrlen << 2)); 16036f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 16046f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 1605d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrlen); 1606d204c5d2STrond Myklebust for (i = 0; i < attrlen; i++) 1607d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrs[i]); 1608cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 1609aa9c2669SDavid Quigley 1610aa9c2669SDavid Quigley dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n", 161144109241SFred Isaman __func__, 1612eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1613cd93710eSChuck Lever verf[0], verf[1], 1614eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1615aa9c2669SDavid Quigley attrs[1] & readdir->bitmask[1], 1616aa9c2669SDavid Quigley attrs[2] & readdir->bitmask[2]); 16171da177e4SLinus Torvalds } 16181da177e4SLinus Torvalds 1619cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16201da177e4SLinus Torvalds { 1621ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 16221da177e4SLinus Torvalds } 16231da177e4SLinus Torvalds 1624cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16251da177e4SLinus Torvalds { 1626ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 16276fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16281da177e4SLinus Torvalds } 16291da177e4SLinus Torvalds 1630cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16311da177e4SLinus Torvalds { 1632ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1633811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1634811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 16351da177e4SLinus Torvalds } 16361da177e4SLinus Torvalds 1637bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1638bb4dae5eSChuck Lever struct compound_hdr *hdr) 16391da177e4SLinus Torvalds { 1640475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1641ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16421da177e4SLinus Torvalds } 16431da177e4SLinus Torvalds 1644cf8cdbe5SAndy Adamson static void 1645d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 164656ae19f3STrond Myklebust { 1647ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 164856ae19f3STrond Myklebust } 164956ae19f3STrond Myklebust 16509f06c719SChuck Lever static void 1651d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 165223ec6965SJ. Bruce Fields { 16538687b63aSAl Viro __be32 *p; 165423ec6965SJ. Bruce Fields 1655ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1656ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 165713c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1658e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 165934558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 166013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 166134558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 16628fbcf237SAndreas Gruenbacher xdr_write_pages(xdr, arg->acl_pages, 0, arg->acl_len); 166323ec6965SJ. Bruce Fields } 166423ec6965SJ. Bruce Fields 1665cf8cdbe5SAndy Adamson static void 1666d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16671da177e4SLinus Torvalds { 1668ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16691da177e4SLinus Torvalds } 16701da177e4SLinus Torvalds 1671cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16721da177e4SLinus Torvalds { 1673ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1674ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 16755334c5bdSKinglong Mee encode_attrs(xdr, arg->iap, arg->label, server, false); 16761da177e4SLinus Torvalds } 16771da177e4SLinus Torvalds 1678cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16791da177e4SLinus Torvalds { 16808687b63aSAl Viro __be32 *p; 16811da177e4SLinus Torvalds 168270019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1683cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16841da177e4SLinus Torvalds 16853a6bb738SJeff Layton encode_string(xdr, strlen(setclientid->sc_clnt->cl_owner_id), 16863a6bb738SJeff Layton setclientid->sc_clnt->cl_owner_id); 168713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 168834558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16891da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16901da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 169113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 16923a6bb738SJeff Layton *p = cpu_to_be32(setclientid->sc_clnt->cl_cb_ident); 16931da177e4SLinus Torvalds } 16941da177e4SLinus Torvalds 1695bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16961da177e4SLinus Torvalds { 1697475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1698475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1699ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1700cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 17011da177e4SLinus Torvalds } 17021da177e4SLinus Torvalds 17033c6b899cSAnna Schumaker static void encode_write(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 17043c6b899cSAnna Schumaker struct compound_hdr *hdr) 17051da177e4SLinus Torvalds { 17068687b63aSAl Viro __be32 *p; 17071da177e4SLinus Torvalds 1708ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 17099b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 17101da177e4SLinus Torvalds 171113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1712b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1713e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 171434558513SBenny Halevy *p = cpu_to_be32(args->count); 17151da177e4SLinus Torvalds 17161da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 17171da177e4SLinus Torvalds } 17181da177e4SLinus Torvalds 1719cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17201da177e4SLinus Torvalds { 1721ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1722ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 17231da177e4SLinus Torvalds } 17249b7b9fccSAndy Adamson 17255a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17265a5ea0d4SBryan Schumaker { 1727ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 17286fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 17295a5ea0d4SBryan Schumaker } 17305a5ea0d4SBryan Schumaker 173199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17329b7b9fccSAndy Adamson /* NFSv4.1 operations */ 17337c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 173471a097c6STrond Myklebust struct nfs41_bind_conn_to_session_args *args, 17357c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 17367c44f1aeSWeston Andros Adamson { 17377c44f1aeSWeston Andros Adamson __be32 *p; 17387c44f1aeSWeston Andros Adamson 17397c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17407c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 174171a097c6STrond Myklebust encode_opaque_fixed(xdr, args->sessionid.data, NFS4_MAX_SESSIONID_LEN); 17427c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 174371a097c6STrond Myklebust *p++ = cpu_to_be32(args->dir); 174471a097c6STrond Myklebust *p = (args->use_conn_in_rdma_mode) ? cpu_to_be32(1) : cpu_to_be32(0); 17457c44f1aeSWeston Andros Adamson } 17467c44f1aeSWeston Andros Adamson 17472031cd1aSWeston Andros Adamson static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 17482031cd1aSWeston Andros Adamson { 17492031cd1aSWeston Andros Adamson unsigned int i; 17502031cd1aSWeston Andros Adamson encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS); 17512031cd1aSWeston Andros Adamson for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++) 17522031cd1aSWeston Andros Adamson encode_uint32(xdr, op_map->u.words[i]); 17532031cd1aSWeston Andros Adamson } 17542031cd1aSWeston Andros Adamson 175599fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 175699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 175799fe60d0SBenny Halevy struct compound_hdr *hdr) 175899fe60d0SBenny Halevy { 175999fe60d0SBenny Halevy __be32 *p; 1760d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1761db8ac8baSWeston Andros Adamson int len = 0; 176299fe60d0SBenny Halevy 176370019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1764cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 176599fe60d0SBenny Halevy 17663a6bb738SJeff Layton encode_string(xdr, strlen(args->client->cl_owner_id), 17673a6bb738SJeff Layton args->client->cl_owner_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 struct nfs_client *clp = args->client; 181389f0ff38STrond Myklebust struct rpc_clnt *clnt = clp->cl_rpcclient; 1814f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 18158e0d46e1SMike Sager u32 max_resp_sz_cached; 18168e0d46e1SMike Sager 18178e0d46e1SMike Sager /* 18188e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 18198e0d46e1SMike Sager * 2 is the verifier. 18208e0d46e1SMike Sager */ 18218e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 18228e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1823fc931582SAndy Adamson 1824475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 182589f0ff38STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + clnt->cl_nodelen + 12); 182679969dd1STrond Myklebust p = xdr_encode_hyper(p, args->clientid); 182779969dd1STrond Myklebust *p++ = cpu_to_be32(args->seqid); /*Sequence id */ 1828e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1829fc931582SAndy Adamson 1830fc931582SAndy Adamson /* Fore Channel */ 1831c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1832e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1833e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18348e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1835e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1836e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1837e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1838fc931582SAndy Adamson 1839fc931582SAndy Adamson /* Back Channel */ 1840c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1841e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1842e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1843e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1844e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1845e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1846e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1847fc931582SAndy Adamson 1848e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1849e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1850e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1851fc931582SAndy Adamson 1852fc931582SAndy Adamson /* authsys_parms rfc1831 */ 185317f26b12STrond Myklebust *p++ = cpu_to_be32(nn->boot_time.tv_nsec); /* stamp */ 185489f0ff38STrond Myklebust p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen); 1855e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1856e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 185734558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1858fc931582SAndy Adamson } 18590f3e66c6SAndy Adamson 18600f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18610f3e66c6SAndy Adamson struct nfs4_session *session, 18620f3e66c6SAndy Adamson struct compound_hdr *hdr) 18630f3e66c6SAndy Adamson { 1864475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1865475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18660f3e66c6SAndy Adamson } 186718019753SRicardo Labiaga 186866245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 186966245539STrond Myklebust uint64_t clientid, 187066245539STrond Myklebust struct compound_hdr *hdr) 187166245539STrond Myklebust { 187266245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 187366245539STrond Myklebust encode_uint64(xdr, clientid); 187466245539STrond Myklebust } 187566245539STrond Myklebust 187618019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 187718019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 187818019753SRicardo Labiaga struct compound_hdr *hdr) 187918019753SRicardo Labiaga { 1880475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1881475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 188218019753SRicardo Labiaga } 188399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 188499fe60d0SBenny Halevy 18859b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18869b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18879b7b9fccSAndy Adamson struct compound_hdr *hdr) 18889b7b9fccSAndy Adamson { 18899b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18902b2fa717STrond Myklebust struct nfs4_session *session; 1891fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 18922b2fa717STrond Myklebust struct nfs4_slot *slot = args->sa_slot; 1893fc01cea9SAndy Adamson __be32 *p; 18949b7b9fccSAndy Adamson 18952b2fa717STrond Myklebust tp = slot->table; 18962b2fa717STrond Myklebust session = tp->session; 18973bd2384aSChuck Lever if (!session) 18983bd2384aSChuck Lever return; 1899fc01cea9SAndy Adamson 1900475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1901fc01cea9SAndy Adamson 1902fc01cea9SAndy Adamson /* 1903fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1904fc01cea9SAndy Adamson */ 1905fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1906fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1907fc01cea9SAndy Adamson __func__, 1908fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1909fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1910fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1911fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 19122b2fa717STrond Myklebust slot->seq_nr, slot->slot_nr, 1913fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1914475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 191593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1916e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 19172b2fa717STrond Myklebust *p++ = cpu_to_be32(slot->slot_nr); 1918e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 191934558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19209b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19219b7b9fccSAndy Adamson } 19229b7b9fccSAndy Adamson 1923b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1924b1f69b75SAndy Adamson static void 1925b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1926b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1927b1f69b75SAndy Adamson struct compound_hdr *hdr) 1928b1f69b75SAndy Adamson { 1929b1f69b75SAndy Adamson __be32 *p; 1930b1f69b75SAndy Adamson 1931475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 193284c9dee3SChristoph Hellwig p = reserve_space(xdr, NFS4_DEVICEID4_SIZE + 4 + 4); 1933b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1934b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1935b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1936f1c097beSAndy Adamson *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */ 193784c9dee3SChristoph Hellwig 193884c9dee3SChristoph Hellwig p = reserve_space(xdr, 4 + 4); 193984c9dee3SChristoph Hellwig *p++ = cpu_to_be32(1); /* bitmap length */ 19404e590803STrond Myklebust *p++ = cpu_to_be32(args->notify_types); 1941b1f69b75SAndy Adamson } 1942b1f69b75SAndy Adamson 1943b1f69b75SAndy Adamson static void 1944b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1945b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1946b1f69b75SAndy Adamson struct compound_hdr *hdr) 1947b1f69b75SAndy Adamson { 1948b1f69b75SAndy Adamson __be32 *p; 1949b1f69b75SAndy Adamson 1950475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1951475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1952b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1953b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1954b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1955b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1956b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1957b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1958ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1959475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1960b1f69b75SAndy Adamson 1961b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1962b1f69b75SAndy Adamson __func__, 1963b1f69b75SAndy Adamson args->type, 1964b1f69b75SAndy Adamson args->range.iomode, 1965b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1966b1f69b75SAndy Adamson (unsigned long)args->range.length, 1967b1f69b75SAndy Adamson args->maxcount); 1968b1f69b75SAndy Adamson } 1969863a3c6cSAndy Adamson 1970863a3c6cSAndy Adamson static int 1971863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1972ac7db726SBenny Halevy struct inode *inode, 19735f919c9fSChristoph Hellwig struct nfs4_layoutcommit_args *args, 1974863a3c6cSAndy Adamson struct compound_hdr *hdr) 1975863a3c6cSAndy Adamson { 1976863a3c6cSAndy Adamson __be32 *p; 1977863a3c6cSAndy Adamson 1978863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1979863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1980863a3c6cSAndy Adamson 1981475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 1982475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1983863a3c6cSAndy Adamson /* Only whole file layouts */ 1984863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19853557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1986ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 1987ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1988ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1989863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1990863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1991863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1992863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1993ac7db726SBenny Halevy 19945f919c9fSChristoph Hellwig if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) { 1995ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 1996ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 19975f919c9fSChristoph Hellwig } else { 19985f919c9fSChristoph Hellwig encode_uint32(xdr, args->layoutupdate_len); 19995f919c9fSChristoph Hellwig if (args->layoutupdate_pages) { 20005f919c9fSChristoph Hellwig xdr_write_pages(xdr, args->layoutupdate_pages, 0, 20015f919c9fSChristoph Hellwig args->layoutupdate_len); 20025f919c9fSChristoph Hellwig } 20035f919c9fSChristoph Hellwig } 2004863a3c6cSAndy Adamson 2005863a3c6cSAndy Adamson return 0; 2006863a3c6cSAndy Adamson } 2007cbe82603SBenny Halevy 2008cbe82603SBenny Halevy static void 2009cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2010cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2011cbe82603SBenny Halevy struct compound_hdr *hdr) 2012cbe82603SBenny Halevy { 2013cbe82603SBenny Halevy __be32 *p; 2014cbe82603SBenny Halevy 2015475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 2016475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 2017cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2018cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 201915eb67c1SPeng Tao *p++ = cpu_to_be32(args->range.iomode); 2020cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2021ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 202215eb67c1SPeng Tao p = xdr_encode_hyper(p, args->range.offset); 202315eb67c1SPeng Tao p = xdr_encode_hyper(p, args->range.length); 2024cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2025ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 2026cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 202704a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 202804a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 202904a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 2030475d4ba0STrond Myklebust } else 2031475d4ba0STrond Myklebust encode_uint32(xdr, 0); 2032cbe82603SBenny Halevy } 2033fca78d6dSBryan Schumaker 2034fca78d6dSBryan Schumaker static int 2035fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2036fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2037fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2038fca78d6dSBryan Schumaker { 2039475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 2040475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2041fca78d6dSBryan Schumaker return 0; 2042fca78d6dSBryan Schumaker } 20437d974794SBryan Schumaker 20447d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20457d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20467d974794SBryan Schumaker struct compound_hdr *hdr) 20477d974794SBryan Schumaker { 2048475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2049475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2050ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20517d974794SBryan Schumaker } 20529aeda35fSBryan Schumaker 20539aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20549aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20559aeda35fSBryan Schumaker struct compound_hdr *hdr) 20569aeda35fSBryan Schumaker { 2057ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 20587c1d5faeSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 20599aeda35fSBryan Schumaker } 2060b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2061b1f69b75SAndy Adamson 20621da177e4SLinus Torvalds /* 20631da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20641da177e4SLinus Torvalds */ 20651da177e4SLinus Torvalds 206666cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 206766cc0429SBenny Halevy { 206866cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 20693bd2384aSChuck Lever struct nfs4_session *session = args->sa_slot->table->session; 20703bd2384aSChuck Lever if (session) 20713bd2384aSChuck Lever return session->clp->cl_mvops->minor_version; 207266cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 207366cc0429SBenny Halevy return 0; 207466cc0429SBenny Halevy } 207566cc0429SBenny Halevy 20761da177e4SLinus Torvalds /* 20771da177e4SLinus Torvalds * Encode an ACCESS request 20781da177e4SLinus Torvalds */ 20799f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20809f06c719SChuck Lever const struct nfs4_accessargs *args) 20811da177e4SLinus Torvalds { 20821da177e4SLinus Torvalds struct compound_hdr hdr = { 208366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20841da177e4SLinus Torvalds }; 20851da177e4SLinus Torvalds 20869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20879f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20889f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20899f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 20909f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2091d017931cSAndy Adamson encode_nops(&hdr); 20921da177e4SLinus Torvalds } 20931da177e4SLinus Torvalds 20941da177e4SLinus Torvalds /* 20951da177e4SLinus Torvalds * Encode LOOKUP request 20961da177e4SLinus Torvalds */ 20979f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 20989f06c719SChuck Lever const struct nfs4_lookup_arg *args) 20991da177e4SLinus Torvalds { 21001da177e4SLinus Torvalds struct compound_hdr hdr = { 210166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21021da177e4SLinus Torvalds }; 21031da177e4SLinus Torvalds 21049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21059f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21069f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21079f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21089f06c719SChuck Lever encode_getfh(xdr, &hdr); 21099f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2110d017931cSAndy Adamson encode_nops(&hdr); 21111da177e4SLinus Torvalds } 21121da177e4SLinus Torvalds 21131da177e4SLinus Torvalds /* 21141da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21151da177e4SLinus Torvalds */ 21169f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21179f06c719SChuck Lever struct xdr_stream *xdr, 21189f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21191da177e4SLinus Torvalds { 21201da177e4SLinus Torvalds struct compound_hdr hdr = { 212166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21221da177e4SLinus Torvalds }; 21231da177e4SLinus Torvalds 21249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21269f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21279f06c719SChuck Lever encode_getfh(xdr, &hdr); 21289f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2129d017931cSAndy Adamson encode_nops(&hdr); 21301da177e4SLinus Torvalds } 21311da177e4SLinus Torvalds 21321da177e4SLinus Torvalds /* 21331da177e4SLinus Torvalds * Encode REMOVE request 21341da177e4SLinus Torvalds */ 21359f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 21369f06c719SChuck Lever const struct nfs_removeargs *args) 21371da177e4SLinus Torvalds { 21381da177e4SLinus Torvalds struct compound_hdr hdr = { 213966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21401da177e4SLinus Torvalds }; 21411da177e4SLinus Torvalds 21429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21459f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2146d017931cSAndy Adamson encode_nops(&hdr); 21471da177e4SLinus Torvalds } 21481da177e4SLinus Torvalds 21491da177e4SLinus Torvalds /* 21501da177e4SLinus Torvalds * Encode RENAME request 21511da177e4SLinus Torvalds */ 21529f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21539f06c719SChuck Lever const struct nfs_renameargs *args) 21541da177e4SLinus Torvalds { 21551da177e4SLinus Torvalds struct compound_hdr hdr = { 215666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21571da177e4SLinus Torvalds }; 21581da177e4SLinus Torvalds 21599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21619f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21629f06c719SChuck Lever encode_savefh(xdr, &hdr); 21639f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21649f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2165d017931cSAndy Adamson encode_nops(&hdr); 21661da177e4SLinus Torvalds } 21671da177e4SLinus Torvalds 21681da177e4SLinus Torvalds /* 21691da177e4SLinus Torvalds * Encode LINK request 21701da177e4SLinus Torvalds */ 21719f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21729f06c719SChuck Lever const struct nfs4_link_arg *args) 21731da177e4SLinus Torvalds { 21741da177e4SLinus Torvalds struct compound_hdr hdr = { 217566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21761da177e4SLinus Torvalds }; 21771da177e4SLinus Torvalds 21789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21799f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21809f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21819f06c719SChuck Lever encode_savefh(xdr, &hdr); 21829f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21839f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21849f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21859f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2186d017931cSAndy Adamson encode_nops(&hdr); 21871da177e4SLinus Torvalds } 21881da177e4SLinus Torvalds 21891da177e4SLinus Torvalds /* 21901da177e4SLinus Torvalds * Encode CREATE request 21911da177e4SLinus Torvalds */ 21929f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 21939f06c719SChuck Lever const struct nfs4_create_arg *args) 21941da177e4SLinus Torvalds { 21951da177e4SLinus Torvalds struct compound_hdr hdr = { 219666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21971da177e4SLinus Torvalds }; 21981da177e4SLinus Torvalds 21999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22009f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22019f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22029f06c719SChuck Lever encode_create(xdr, args, &hdr); 22039f06c719SChuck Lever encode_getfh(xdr, &hdr); 22049f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2205d017931cSAndy Adamson encode_nops(&hdr); 22061da177e4SLinus Torvalds } 22071da177e4SLinus Torvalds 22081da177e4SLinus Torvalds /* 22091da177e4SLinus Torvalds * Encode SYMLINK request 22101da177e4SLinus Torvalds */ 22119f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22129f06c719SChuck Lever const struct nfs4_create_arg *args) 22131da177e4SLinus Torvalds { 22149f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22151da177e4SLinus Torvalds } 22161da177e4SLinus Torvalds 22171da177e4SLinus Torvalds /* 22181da177e4SLinus Torvalds * Encode GETATTR request 22191da177e4SLinus Torvalds */ 22209f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22219f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22221da177e4SLinus Torvalds { 22231da177e4SLinus Torvalds struct compound_hdr hdr = { 222466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22251da177e4SLinus Torvalds }; 22261da177e4SLinus Torvalds 22279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22289f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22299f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22309f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2231d017931cSAndy Adamson encode_nops(&hdr); 22321da177e4SLinus Torvalds } 22331da177e4SLinus Torvalds 22341da177e4SLinus Torvalds /* 22351da177e4SLinus Torvalds * Encode a CLOSE request 22361da177e4SLinus Torvalds */ 22379f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 22389f06c719SChuck Lever struct nfs_closeargs *args) 22391da177e4SLinus Torvalds { 22401da177e4SLinus Torvalds struct compound_hdr hdr = { 224166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22421da177e4SLinus Torvalds }; 22431da177e4SLinus Torvalds 22449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22459f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22469f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22479f06c719SChuck Lever encode_close(xdr, args, &hdr); 22489f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2249d017931cSAndy Adamson encode_nops(&hdr); 22501da177e4SLinus Torvalds } 22511da177e4SLinus Torvalds 22521da177e4SLinus Torvalds /* 22531da177e4SLinus Torvalds * Encode an OPEN request 22541da177e4SLinus Torvalds */ 22559f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22569f06c719SChuck Lever struct nfs_openargs *args) 22571da177e4SLinus Torvalds { 22581da177e4SLinus Torvalds struct compound_hdr hdr = { 225966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22601da177e4SLinus Torvalds }; 22611da177e4SLinus Torvalds 22629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22649f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22659f06c719SChuck Lever encode_open(xdr, args, &hdr); 22669f06c719SChuck Lever encode_getfh(xdr, &hdr); 2267ae2bb032SWeston Andros Adamson if (args->access) 22686168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22691549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2270d017931cSAndy Adamson encode_nops(&hdr); 22711da177e4SLinus Torvalds } 22721da177e4SLinus Torvalds 22731da177e4SLinus Torvalds /* 22741da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22751da177e4SLinus Torvalds */ 22769f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22779f06c719SChuck Lever struct xdr_stream *xdr, 22789f06c719SChuck Lever struct nfs_open_confirmargs *args) 22791da177e4SLinus Torvalds { 22801da177e4SLinus Torvalds struct compound_hdr hdr = { 2281d017931cSAndy Adamson .nops = 0, 22821da177e4SLinus Torvalds }; 22831da177e4SLinus Torvalds 22849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22869f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2287d017931cSAndy Adamson encode_nops(&hdr); 22881da177e4SLinus Torvalds } 22891da177e4SLinus Torvalds 22901da177e4SLinus Torvalds /* 22911da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 22921da177e4SLinus Torvalds */ 22939f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 22949f06c719SChuck Lever struct xdr_stream *xdr, 22959f06c719SChuck Lever struct nfs_openargs *args) 22961da177e4SLinus Torvalds { 22971da177e4SLinus Torvalds struct compound_hdr hdr = { 229866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22991da177e4SLinus Torvalds }; 23001da177e4SLinus Torvalds 23019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23049f06c719SChuck Lever encode_open(xdr, args, &hdr); 2305ae2bb032SWeston Andros Adamson if (args->access) 23066168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2307e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2308d017931cSAndy Adamson encode_nops(&hdr); 23091da177e4SLinus Torvalds } 23101da177e4SLinus Torvalds 23111da177e4SLinus Torvalds /* 23121da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23131da177e4SLinus Torvalds */ 23149f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23159f06c719SChuck Lever struct xdr_stream *xdr, 23169f06c719SChuck Lever struct nfs_closeargs *args) 23171da177e4SLinus Torvalds { 23181da177e4SLinus Torvalds struct compound_hdr hdr = { 231966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23201da177e4SLinus Torvalds }; 23211da177e4SLinus Torvalds 23229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23239f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23249f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23259f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 23269f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2327d017931cSAndy Adamson encode_nops(&hdr); 23281da177e4SLinus Torvalds } 23291da177e4SLinus Torvalds 23301da177e4SLinus Torvalds /* 23311da177e4SLinus Torvalds * Encode a LOCK request 23321da177e4SLinus Torvalds */ 23339f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 23349f06c719SChuck Lever struct nfs_lock_args *args) 23351da177e4SLinus Torvalds { 23361da177e4SLinus Torvalds struct compound_hdr hdr = { 233766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23381da177e4SLinus Torvalds }; 23391da177e4SLinus Torvalds 23409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23439f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2344d017931cSAndy Adamson encode_nops(&hdr); 23451da177e4SLinus Torvalds } 23461da177e4SLinus Torvalds 23471da177e4SLinus Torvalds /* 23481da177e4SLinus Torvalds * Encode a LOCKT request 23491da177e4SLinus Torvalds */ 23509f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23519f06c719SChuck Lever struct nfs_lockt_args *args) 23521da177e4SLinus Torvalds { 23531da177e4SLinus Torvalds struct compound_hdr hdr = { 235466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23551da177e4SLinus Torvalds }; 23561da177e4SLinus Torvalds 23579f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23589f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23599f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23609f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2361d017931cSAndy Adamson encode_nops(&hdr); 23621da177e4SLinus Torvalds } 23631da177e4SLinus Torvalds 23641da177e4SLinus Torvalds /* 23651da177e4SLinus Torvalds * Encode a LOCKU request 23661da177e4SLinus Torvalds */ 23679f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23689f06c719SChuck Lever struct nfs_locku_args *args) 23691da177e4SLinus Torvalds { 23701da177e4SLinus Torvalds struct compound_hdr hdr = { 237166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23721da177e4SLinus Torvalds }; 23731da177e4SLinus Torvalds 23749f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23759f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23769f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23779f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2378d017931cSAndy Adamson encode_nops(&hdr); 23791da177e4SLinus Torvalds } 23801da177e4SLinus Torvalds 23819f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23829f06c719SChuck Lever struct xdr_stream *xdr, 23839f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2384d3c7b7ccSTrond Myklebust { 2385d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2386d3c7b7ccSTrond Myklebust .minorversion = 0, 2387d3c7b7ccSTrond Myklebust }; 2388d3c7b7ccSTrond Myklebust 23899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23909f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2391d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2392d3c7b7ccSTrond Myklebust } 2393d3c7b7ccSTrond Myklebust 23941da177e4SLinus Torvalds /* 23951da177e4SLinus Torvalds * Encode a READLINK request 23961da177e4SLinus Torvalds */ 23979f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 23989f06c719SChuck Lever const struct nfs4_readlink *args) 23991da177e4SLinus Torvalds { 24001da177e4SLinus Torvalds struct compound_hdr hdr = { 240166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24021da177e4SLinus Torvalds }; 24031da177e4SLinus Torvalds 24049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24059f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24069f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24079f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2408e3a535e1STrond Myklebust 240928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2410e3a535e1STrond Myklebust args->pgbase, args->pglen); 2411d017931cSAndy Adamson encode_nops(&hdr); 24121da177e4SLinus Torvalds } 24131da177e4SLinus Torvalds 24141da177e4SLinus Torvalds /* 24151da177e4SLinus Torvalds * Encode a READDIR request 24161da177e4SLinus Torvalds */ 24179f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24189f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24191da177e4SLinus Torvalds { 24201da177e4SLinus Torvalds struct compound_hdr hdr = { 242166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24221da177e4SLinus Torvalds }; 24231da177e4SLinus Torvalds 24249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24269f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24279f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2428d6ac02dfSTrond Myklebust 242928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2430d6ac02dfSTrond Myklebust args->pgbase, args->count); 2431d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 243228f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2433d6ac02dfSTrond Myklebust args->pgbase, args->count); 2434d017931cSAndy Adamson encode_nops(&hdr); 24351da177e4SLinus Torvalds } 24361da177e4SLinus Torvalds 24371da177e4SLinus Torvalds /* 24381da177e4SLinus Torvalds * Encode a READ request 24391da177e4SLinus Torvalds */ 24409f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24413c6b899cSAnna Schumaker struct nfs_pgio_args *args) 24421da177e4SLinus Torvalds { 24431da177e4SLinus Torvalds struct compound_hdr hdr = { 244466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24451da177e4SLinus Torvalds }; 24461da177e4SLinus Torvalds 24479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24489f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24499f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24509f06c719SChuck Lever encode_read(xdr, args, &hdr); 24511da177e4SLinus Torvalds 245228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24531da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24544f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2455d017931cSAndy Adamson encode_nops(&hdr); 24561da177e4SLinus Torvalds } 24571da177e4SLinus Torvalds 24581da177e4SLinus Torvalds /* 24591da177e4SLinus Torvalds * Encode an SETATTR request 24601da177e4SLinus Torvalds */ 24619f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24629f06c719SChuck Lever struct nfs_setattrargs *args) 24631da177e4SLinus Torvalds { 24641da177e4SLinus Torvalds struct compound_hdr hdr = { 246566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24661da177e4SLinus Torvalds }; 24671da177e4SLinus Torvalds 24689f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24699f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24709f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24719f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24729f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2473d017931cSAndy Adamson encode_nops(&hdr); 24741da177e4SLinus Torvalds } 24751da177e4SLinus Torvalds 24761da177e4SLinus Torvalds /* 2477029d105eSJ. Bruce Fields * Encode a GETACL request 2478029d105eSJ. Bruce Fields */ 24799f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2480029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2481029d105eSJ. Bruce Fields { 2482029d105eSJ. Bruce Fields struct compound_hdr hdr = { 248366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2484029d105eSJ. Bruce Fields }; 248528f56694SBenny Halevy uint32_t replen; 2486029d105eSJ. Bruce Fields 24879f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24889f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24899f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2490bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 24919f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2492cf8cdbe5SAndy Adamson 249328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 24948fbcf237SAndreas Gruenbacher args->acl_pages, 0, args->acl_len); 2495bf118a34SAndy Adamson 2496d017931cSAndy Adamson encode_nops(&hdr); 2497029d105eSJ. Bruce Fields } 2498029d105eSJ. Bruce Fields 2499029d105eSJ. Bruce Fields /* 25001da177e4SLinus Torvalds * Encode a WRITE request 25011da177e4SLinus Torvalds */ 25029f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25033c6b899cSAnna Schumaker struct nfs_pgio_args *args) 25041da177e4SLinus Torvalds { 25051da177e4SLinus Torvalds struct compound_hdr hdr = { 250666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25071da177e4SLinus Torvalds }; 25081da177e4SLinus Torvalds 25099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25109f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25119f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25129f06c719SChuck Lever encode_write(xdr, args, &hdr); 25134f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25147ffd1064SFred Isaman if (args->bitmask) 25159f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2516d017931cSAndy Adamson encode_nops(&hdr); 25171da177e4SLinus Torvalds } 25181da177e4SLinus Torvalds 25191da177e4SLinus Torvalds /* 25201da177e4SLinus Torvalds * a COMMIT request 25211da177e4SLinus Torvalds */ 25229f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25230b7c0153SFred Isaman struct nfs_commitargs *args) 25241da177e4SLinus Torvalds { 25251da177e4SLinus Torvalds struct compound_hdr hdr = { 252666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25271da177e4SLinus Torvalds }; 25281da177e4SLinus Torvalds 25299f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25309f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25319f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25329f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2533d017931cSAndy Adamson encode_nops(&hdr); 25341da177e4SLinus Torvalds } 25351da177e4SLinus Torvalds 25361da177e4SLinus Torvalds /* 25371da177e4SLinus Torvalds * FSINFO request 25381da177e4SLinus Torvalds */ 25399f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 25409f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25411da177e4SLinus Torvalds { 25421da177e4SLinus Torvalds struct compound_hdr hdr = { 254366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25441da177e4SLinus Torvalds }; 25451da177e4SLinus Torvalds 25469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25499f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2550d017931cSAndy Adamson encode_nops(&hdr); 25511da177e4SLinus Torvalds } 25521da177e4SLinus Torvalds 25531da177e4SLinus Torvalds /* 25541da177e4SLinus Torvalds * a PATHCONF request 25551da177e4SLinus Torvalds */ 25569f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25579f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25581da177e4SLinus Torvalds { 25591da177e4SLinus Torvalds struct compound_hdr hdr = { 256066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25611da177e4SLinus Torvalds }; 25621da177e4SLinus Torvalds 25639f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25649f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25659f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25669f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2567d017931cSAndy Adamson &hdr); 2568d017931cSAndy Adamson encode_nops(&hdr); 25691da177e4SLinus Torvalds } 25701da177e4SLinus Torvalds 25711da177e4SLinus Torvalds /* 25721da177e4SLinus Torvalds * a STATFS request 25731da177e4SLinus Torvalds */ 25749f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25759f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25761da177e4SLinus Torvalds { 25771da177e4SLinus Torvalds struct compound_hdr hdr = { 257866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25791da177e4SLinus Torvalds }; 25801da177e4SLinus Torvalds 25819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25829f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25839f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25849f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2585d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2586d017931cSAndy Adamson encode_nops(&hdr); 25871da177e4SLinus Torvalds } 25881da177e4SLinus Torvalds 25891da177e4SLinus Torvalds /* 25901da177e4SLinus Torvalds * GETATTR_BITMAP request 25911da177e4SLinus Torvalds */ 25929f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 25939f06c719SChuck Lever struct xdr_stream *xdr, 259443652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 25951da177e4SLinus Torvalds { 25968c61282fSKinglong Mee const u32 *bitmask = args->bitmask; 25971da177e4SLinus Torvalds struct compound_hdr hdr = { 259866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25991da177e4SLinus Torvalds }; 26001da177e4SLinus Torvalds 26019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26039f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26048c61282fSKinglong Mee encode_getattr_three(xdr, bitmask[0], bitmask[1], bitmask[2], &hdr); 2605d017931cSAndy Adamson encode_nops(&hdr); 26061da177e4SLinus Torvalds } 26071da177e4SLinus Torvalds 26081da177e4SLinus Torvalds /* 26091da177e4SLinus Torvalds * a RENEW request 26101da177e4SLinus Torvalds */ 26119f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 26129f06c719SChuck Lever struct nfs_client *clp) 26131da177e4SLinus Torvalds { 26141da177e4SLinus Torvalds struct compound_hdr hdr = { 2615d017931cSAndy Adamson .nops = 0, 26161da177e4SLinus Torvalds }; 26171da177e4SLinus Torvalds 26189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2619bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2620d017931cSAndy Adamson encode_nops(&hdr); 26211da177e4SLinus Torvalds } 26221da177e4SLinus Torvalds 26231da177e4SLinus Torvalds /* 26241da177e4SLinus Torvalds * a SETCLIENTID request 26251da177e4SLinus Torvalds */ 26269f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 26279f06c719SChuck Lever struct xdr_stream *xdr, 26289f06c719SChuck Lever struct nfs4_setclientid *sc) 26291da177e4SLinus Torvalds { 26301da177e4SLinus Torvalds struct compound_hdr hdr = { 2631d017931cSAndy Adamson .nops = 0, 26321da177e4SLinus Torvalds }; 26331da177e4SLinus Torvalds 26349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26359f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2636d017931cSAndy Adamson encode_nops(&hdr); 26371da177e4SLinus Torvalds } 26381da177e4SLinus Torvalds 26391da177e4SLinus Torvalds /* 26401da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 26411da177e4SLinus Torvalds */ 26429f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26439f06c719SChuck Lever struct xdr_stream *xdr, 26449f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26451da177e4SLinus Torvalds { 26461da177e4SLinus Torvalds struct compound_hdr hdr = { 2647d017931cSAndy Adamson .nops = 0, 26481da177e4SLinus Torvalds }; 26491da177e4SLinus Torvalds 26509f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26519f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 2652d017931cSAndy Adamson encode_nops(&hdr); 26531da177e4SLinus Torvalds } 26541da177e4SLinus Torvalds 26551da177e4SLinus Torvalds /* 26561da177e4SLinus Torvalds * DELEGRETURN request 26571da177e4SLinus Torvalds */ 26589f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26599f06c719SChuck Lever struct xdr_stream *xdr, 26609f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26611da177e4SLinus Torvalds { 26621da177e4SLinus Torvalds struct compound_hdr hdr = { 266366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26641da177e4SLinus Torvalds }; 26651da177e4SLinus Torvalds 26669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26679f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26689f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26699f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2670e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2671d017931cSAndy Adamson encode_nops(&hdr); 26721da177e4SLinus Torvalds } 26731da177e4SLinus Torvalds 26741da177e4SLinus Torvalds /* 2675683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2676683b57b4STrond Myklebust */ 26779f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26789f06c719SChuck Lever struct xdr_stream *xdr, 26799f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2680683b57b4STrond Myklebust { 2681683b57b4STrond Myklebust struct compound_hdr hdr = { 268266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2683683b57b4STrond Myklebust }; 268428f56694SBenny Halevy uint32_t replen; 2685683b57b4STrond Myklebust 26869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26879f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 2688b03d735bSChuck Lever if (args->migration) { 2689b03d735bSChuck Lever encode_putfh(xdr, args->fh, &hdr); 2690b03d735bSChuck Lever replen = hdr.replen; 2691b03d735bSChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2692b03d735bSChuck Lever if (args->renew) 2693b03d735bSChuck Lever encode_renew(xdr, args->clientid, &hdr); 2694b03d735bSChuck Lever } else { 26959f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 26969f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 2697b03d735bSChuck Lever replen = hdr.replen; 26989f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2699b03d735bSChuck Lever } 2700cf8cdbe5SAndy Adamson 2701b03d735bSChuck Lever /* Set up reply kvec to capture returned fs_locations array. */ 270228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2703683b57b4STrond Myklebust 0, PAGE_SIZE); 2704d017931cSAndy Adamson encode_nops(&hdr); 2705683b57b4STrond Myklebust } 2706683b57b4STrond Myklebust 27075a5ea0d4SBryan Schumaker /* 27085a5ea0d4SBryan Schumaker * Encode SECINFO request 27095a5ea0d4SBryan Schumaker */ 27105a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27115a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27125a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27135a5ea0d4SBryan Schumaker { 27145a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27155a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27165a5ea0d4SBryan Schumaker }; 27175a5ea0d4SBryan Schumaker 27185a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27195a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27205a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27215a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27225a5ea0d4SBryan Schumaker encode_nops(&hdr); 27235a5ea0d4SBryan Schumaker } 27245a5ea0d4SBryan Schumaker 272544c99933SChuck Lever /* 272644c99933SChuck Lever * Encode FSID_PRESENT request 272744c99933SChuck Lever */ 272844c99933SChuck Lever static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req, 272944c99933SChuck Lever struct xdr_stream *xdr, 273044c99933SChuck Lever struct nfs4_fsid_present_arg *args) 273144c99933SChuck Lever { 273244c99933SChuck Lever struct compound_hdr hdr = { 273344c99933SChuck Lever .minorversion = nfs4_xdr_minorversion(&args->seq_args), 273444c99933SChuck Lever }; 273544c99933SChuck Lever 273644c99933SChuck Lever encode_compound_hdr(xdr, req, &hdr); 273744c99933SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 273844c99933SChuck Lever encode_putfh(xdr, args->fh, &hdr); 273944c99933SChuck Lever encode_getfh(xdr, &hdr); 274044c99933SChuck Lever if (args->renew) 274144c99933SChuck Lever encode_renew(xdr, args->clientid, &hdr); 274244c99933SChuck Lever encode_nops(&hdr); 274344c99933SChuck Lever } 274444c99933SChuck Lever 274599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 274699fe60d0SBenny Halevy /* 27477c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 27487c44f1aeSWeston Andros Adamson */ 27497c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 27507c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 275171a097c6STrond Myklebust struct nfs41_bind_conn_to_session_args *args) 27527c44f1aeSWeston Andros Adamson { 27537c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 275471a097c6STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 27557c44f1aeSWeston Andros Adamson }; 27567c44f1aeSWeston Andros Adamson 27577c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 275871a097c6STrond Myklebust encode_bind_conn_to_session(xdr, args, &hdr); 27597c44f1aeSWeston Andros Adamson encode_nops(&hdr); 27607c44f1aeSWeston Andros Adamson } 27617c44f1aeSWeston Andros Adamson 27627c44f1aeSWeston Andros Adamson /* 276399fe60d0SBenny Halevy * EXCHANGE_ID request 276499fe60d0SBenny Halevy */ 27659f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27669f06c719SChuck Lever struct xdr_stream *xdr, 276799fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 276899fe60d0SBenny Halevy { 276999fe60d0SBenny Halevy struct compound_hdr hdr = { 2770a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 277199fe60d0SBenny Halevy }; 277299fe60d0SBenny Halevy 27739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27749f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 277599fe60d0SBenny Halevy encode_nops(&hdr); 277699fe60d0SBenny Halevy } 27772050f0ccSAndy Adamson 27782050f0ccSAndy Adamson /* 2779fc931582SAndy Adamson * a CREATE_SESSION request 2780fc931582SAndy Adamson */ 27819f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27829f06c719SChuck Lever struct xdr_stream *xdr, 2783fc931582SAndy Adamson struct nfs41_create_session_args *args) 2784fc931582SAndy Adamson { 2785fc931582SAndy Adamson struct compound_hdr hdr = { 2786a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2787fc931582SAndy Adamson }; 2788fc931582SAndy Adamson 27899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27909f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2791fc931582SAndy Adamson encode_nops(&hdr); 2792fc931582SAndy Adamson } 2793fc931582SAndy Adamson 2794fc931582SAndy Adamson /* 27950f3e66c6SAndy Adamson * a DESTROY_SESSION request 27960f3e66c6SAndy Adamson */ 27979f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 27989f06c719SChuck Lever struct xdr_stream *xdr, 27990f3e66c6SAndy Adamson struct nfs4_session *session) 28000f3e66c6SAndy Adamson { 28010f3e66c6SAndy Adamson struct compound_hdr hdr = { 2802a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28030f3e66c6SAndy Adamson }; 28040f3e66c6SAndy Adamson 28059f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28069f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28070f3e66c6SAndy Adamson encode_nops(&hdr); 28080f3e66c6SAndy Adamson } 28090f3e66c6SAndy Adamson 28100f3e66c6SAndy Adamson /* 281166245539STrond Myklebust * a DESTROY_CLIENTID request 281266245539STrond Myklebust */ 281366245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 281466245539STrond Myklebust struct xdr_stream *xdr, 281566245539STrond Myklebust struct nfs_client *clp) 281666245539STrond Myklebust { 281766245539STrond Myklebust struct compound_hdr hdr = { 281866245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 281966245539STrond Myklebust }; 282066245539STrond Myklebust 282166245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 282266245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 282366245539STrond Myklebust encode_nops(&hdr); 282466245539STrond Myklebust } 282566245539STrond Myklebust 282666245539STrond Myklebust /* 2827fc01cea9SAndy Adamson * a SEQUENCE request 2828fc01cea9SAndy Adamson */ 28299f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2830fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2831fc01cea9SAndy Adamson { 2832fc01cea9SAndy Adamson struct compound_hdr hdr = { 2833fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2834fc01cea9SAndy Adamson }; 2835fc01cea9SAndy Adamson 28369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28379f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2838fc01cea9SAndy Adamson encode_nops(&hdr); 2839fc01cea9SAndy Adamson } 2840fc01cea9SAndy Adamson 2841fc01cea9SAndy Adamson /* 28422050f0ccSAndy Adamson * a GET_LEASE_TIME request 28432050f0ccSAndy Adamson */ 28449f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28459f06c719SChuck Lever struct xdr_stream *xdr, 28462050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28472050f0ccSAndy Adamson { 28482050f0ccSAndy Adamson struct compound_hdr hdr = { 28492050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28502050f0ccSAndy Adamson }; 2851dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28522050f0ccSAndy Adamson 28539f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28549f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28559f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28569f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28572050f0ccSAndy Adamson encode_nops(&hdr); 28582050f0ccSAndy Adamson } 285918019753SRicardo Labiaga 286018019753SRicardo Labiaga /* 286118019753SRicardo Labiaga * a RECLAIM_COMPLETE request 286218019753SRicardo Labiaga */ 28639f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28649f06c719SChuck Lever struct xdr_stream *xdr, 286518019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 286618019753SRicardo Labiaga { 286718019753SRicardo Labiaga struct compound_hdr hdr = { 286818019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 286918019753SRicardo Labiaga }; 287018019753SRicardo Labiaga 28719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28729f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28739f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 287418019753SRicardo Labiaga encode_nops(&hdr); 287518019753SRicardo Labiaga } 287618019753SRicardo Labiaga 2877b1f69b75SAndy Adamson /* 2878b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2879b1f69b75SAndy Adamson */ 28809f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28819f06c719SChuck Lever struct xdr_stream *xdr, 2882b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2883b1f69b75SAndy Adamson { 2884b1f69b75SAndy Adamson struct compound_hdr hdr = { 2885b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2886b1f69b75SAndy Adamson }; 2887b1f69b75SAndy Adamson 28889f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28899f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28909f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2891b1f69b75SAndy Adamson 2892b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2893b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2894b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2895b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2896b1f69b75SAndy Adamson args->pdev->pglen); 2897b1f69b75SAndy Adamson 2898b1f69b75SAndy Adamson encode_nops(&hdr); 2899b1f69b75SAndy Adamson } 2900b1f69b75SAndy Adamson 2901b1f69b75SAndy Adamson /* 2902b1f69b75SAndy Adamson * Encode LAYOUTGET request 2903b1f69b75SAndy Adamson */ 29049f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29059f06c719SChuck Lever struct xdr_stream *xdr, 2906b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2907b1f69b75SAndy Adamson { 2908b1f69b75SAndy Adamson struct compound_hdr hdr = { 2909b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2910b1f69b75SAndy Adamson }; 2911b1f69b75SAndy Adamson 29129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29139f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29149f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29159f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 291635124a09SWeston Andros Adamson 291735124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 291835124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 291935124a09SWeston Andros Adamson 2920b1f69b75SAndy Adamson encode_nops(&hdr); 2921b1f69b75SAndy Adamson } 2922863a3c6cSAndy Adamson 2923863a3c6cSAndy Adamson /* 2924863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2925863a3c6cSAndy Adamson */ 2926cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2927863a3c6cSAndy Adamson struct xdr_stream *xdr, 2928863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2929863a3c6cSAndy Adamson { 2930ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2931ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2932863a3c6cSAndy Adamson struct compound_hdr hdr = { 2933863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2934863a3c6cSAndy Adamson }; 2935863a3c6cSAndy Adamson 2936863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2937863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2938863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2939ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2940863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2941863a3c6cSAndy Adamson encode_nops(&hdr); 2942cbe82603SBenny Halevy } 2943cbe82603SBenny Halevy 2944cbe82603SBenny Halevy /* 2945cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2946cbe82603SBenny Halevy */ 2947cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2948cbe82603SBenny Halevy struct xdr_stream *xdr, 2949cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2950cbe82603SBenny Halevy { 2951cbe82603SBenny Halevy struct compound_hdr hdr = { 2952cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2953cbe82603SBenny Halevy }; 2954cbe82603SBenny Halevy 2955cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2956cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2957cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2958cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2959cbe82603SBenny Halevy encode_nops(&hdr); 2960863a3c6cSAndy Adamson } 2961fca78d6dSBryan Schumaker 2962fca78d6dSBryan Schumaker /* 2963fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2964fca78d6dSBryan Schumaker */ 2965fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2966fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2967fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2968fca78d6dSBryan Schumaker { 2969fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2970fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2971fca78d6dSBryan Schumaker }; 2972fca78d6dSBryan Schumaker 2973fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2974fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2975fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2976fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2977fca78d6dSBryan Schumaker encode_nops(&hdr); 2978fca78d6dSBryan Schumaker return 0; 2979fca78d6dSBryan Schumaker } 29807d974794SBryan Schumaker 29817d974794SBryan Schumaker /* 29827d974794SBryan Schumaker * Encode TEST_STATEID request 29837d974794SBryan Schumaker */ 29847d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29857d974794SBryan Schumaker struct xdr_stream *xdr, 29867d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29877d974794SBryan Schumaker { 29887d974794SBryan Schumaker struct compound_hdr hdr = { 29897d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29907d974794SBryan Schumaker }; 29917d974794SBryan Schumaker 29927d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29937d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29947d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 29957d974794SBryan Schumaker encode_nops(&hdr); 29967d974794SBryan Schumaker } 29979aeda35fSBryan Schumaker 29989aeda35fSBryan Schumaker /* 29999aeda35fSBryan Schumaker * Encode FREE_STATEID request 30009aeda35fSBryan Schumaker */ 30019aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30029aeda35fSBryan Schumaker struct xdr_stream *xdr, 30039aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 30049aeda35fSBryan Schumaker { 30059aeda35fSBryan Schumaker struct compound_hdr hdr = { 30069aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30079aeda35fSBryan Schumaker }; 30089aeda35fSBryan Schumaker 30099aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30109aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30119aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30129aeda35fSBryan Schumaker encode_nops(&hdr); 30139aeda35fSBryan Schumaker } 301499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 301599fe60d0SBenny Halevy 3016686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3017686841b3SBenny Halevy { 3018686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3019686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3020686841b3SBenny Halevy func, xdr->end - xdr->p); 3021686841b3SBenny Halevy } 30221da177e4SLinus Torvalds 3023683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30241da177e4SLinus Torvalds { 30258687b63aSAl Viro __be32 *p; 30261da177e4SLinus Torvalds 3027c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3028c0eae66eSBenny Halevy if (unlikely(!p)) 3029c0eae66eSBenny Halevy goto out_overflow; 3030cccddf4fSBenny Halevy *len = be32_to_cpup(p); 3031c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 3032c0eae66eSBenny Halevy if (unlikely(!p)) 3033c0eae66eSBenny Halevy goto out_overflow; 30341da177e4SLinus Torvalds *string = (char *)p; 30351da177e4SLinus Torvalds return 0; 3036c0eae66eSBenny Halevy out_overflow: 3037c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3038c0eae66eSBenny Halevy return -EIO; 30391da177e4SLinus Torvalds } 30401da177e4SLinus Torvalds 30411da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30421da177e4SLinus Torvalds { 30438687b63aSAl Viro __be32 *p; 30441da177e4SLinus Torvalds 3045c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3046c0eae66eSBenny Halevy if (unlikely(!p)) 3047c0eae66eSBenny Halevy goto out_overflow; 30486f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3049cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30501da177e4SLinus Torvalds 3051c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3052c0eae66eSBenny Halevy if (unlikely(!p)) 3053c0eae66eSBenny Halevy goto out_overflow; 30541da177e4SLinus Torvalds hdr->tag = (char *)p; 30551da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3056cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3057aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3058aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30591da177e4SLinus Torvalds return 0; 3060c0eae66eSBenny Halevy out_overflow: 3061c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3062c0eae66eSBenny Halevy return -EIO; 30631da177e4SLinus Torvalds } 30641da177e4SLinus Torvalds 3065c7848f69STrond Myklebust static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected, 3066c7848f69STrond Myklebust int *nfs_retval) 30671da177e4SLinus Torvalds { 30688687b63aSAl Viro __be32 *p; 30691da177e4SLinus Torvalds uint32_t opnum; 30701da177e4SLinus Torvalds int32_t nfserr; 30711da177e4SLinus Torvalds 3072c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3073c0eae66eSBenny Halevy if (unlikely(!p)) 3074c0eae66eSBenny Halevy goto out_overflow; 30756f723f77SBenny Halevy opnum = be32_to_cpup(p++); 3076c7848f69STrond Myklebust if (unlikely(opnum != expected)) 3077c7848f69STrond Myklebust goto out_bad_operation; 3078c7848f69STrond Myklebust nfserr = be32_to_cpup(p); 3079c7848f69STrond Myklebust if (nfserr == NFS_OK) 3080c7848f69STrond Myklebust *nfs_retval = 0; 3081c7848f69STrond Myklebust else 3082c7848f69STrond Myklebust *nfs_retval = nfs4_stat_to_errno(nfserr); 3083c7848f69STrond Myklebust return true; 3084c7848f69STrond Myklebust out_bad_operation: 3085fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30861da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30871da177e4SLinus Torvalds opnum, expected); 3088c7848f69STrond Myklebust *nfs_retval = -EREMOTEIO; 3089c7848f69STrond Myklebust return false; 3090c0eae66eSBenny Halevy out_overflow: 3091c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3092c7848f69STrond Myklebust *nfs_retval = -EIO; 3093c7848f69STrond Myklebust return false; 3094c7848f69STrond Myklebust } 3095c7848f69STrond Myklebust 3096c7848f69STrond Myklebust static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 3097c7848f69STrond Myklebust { 3098c7848f69STrond Myklebust int retval; 3099c7848f69STrond Myklebust 3100c7848f69STrond Myklebust __decode_op_hdr(xdr, expected, &retval); 3101c7848f69STrond Myklebust return retval; 31021da177e4SLinus Torvalds } 31031da177e4SLinus Torvalds 31041da177e4SLinus Torvalds /* Dummy routine */ 3105adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 31061da177e4SLinus Torvalds { 31078687b63aSAl Viro __be32 *p; 3108683b57b4STrond Myklebust unsigned int strlen; 31091da177e4SLinus Torvalds char *str; 31101da177e4SLinus Torvalds 3111c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3112c0eae66eSBenny Halevy if (likely(p)) 31131da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3114c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3115c0eae66eSBenny Halevy return -EIO; 31161da177e4SLinus Torvalds } 31171da177e4SLinus Torvalds 31181da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31191da177e4SLinus Torvalds { 31208687b63aSAl Viro uint32_t bmlen; 31218687b63aSAl Viro __be32 *p; 31221da177e4SLinus Torvalds 3123c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3124c0eae66eSBenny Halevy if (unlikely(!p)) 3125c0eae66eSBenny Halevy goto out_overflow; 3126cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31271da177e4SLinus Torvalds 3128dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3129c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3130c0eae66eSBenny Halevy if (unlikely(!p)) 3131c0eae66eSBenny Halevy goto out_overflow; 31321da177e4SLinus Torvalds if (bmlen > 0) { 31336f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3134dae100c2SFred Isaman if (bmlen > 1) { 3135dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3136dae100c2SFred Isaman if (bmlen > 2) 3137dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3138dae100c2SFred Isaman } 31391da177e4SLinus Torvalds } 31401da177e4SLinus Torvalds return 0; 3141c0eae66eSBenny Halevy out_overflow: 3142c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3143c0eae66eSBenny Halevy return -EIO; 31441da177e4SLinus Torvalds } 31451da177e4SLinus Torvalds 3146256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 31471da177e4SLinus Torvalds { 31488687b63aSAl Viro __be32 *p; 31491da177e4SLinus Torvalds 3150c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3151c0eae66eSBenny Halevy if (unlikely(!p)) 3152c0eae66eSBenny Halevy goto out_overflow; 3153cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3154256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 31551da177e4SLinus Torvalds return 0; 3156c0eae66eSBenny Halevy out_overflow: 3157c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3158c0eae66eSBenny Halevy return -EIO; 31591da177e4SLinus Torvalds } 31601da177e4SLinus Torvalds 31611da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31621da177e4SLinus Torvalds { 31631da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31643388bff5SRoman Borisov int ret; 31653388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31663388bff5SRoman Borisov if (unlikely(ret < 0)) 31673388bff5SRoman Borisov return ret; 31681da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31691da177e4SLinus Torvalds } else 3170dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3171dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3172dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31731da177e4SLinus Torvalds return 0; 31741da177e4SLinus Torvalds } 31751da177e4SLinus Torvalds 31761da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31771da177e4SLinus Torvalds { 31788687b63aSAl Viro __be32 *p; 3179409924e4STrond Myklebust int ret = 0; 31801da177e4SLinus Torvalds 31811da177e4SLinus Torvalds *type = 0; 31821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31831da177e4SLinus Torvalds return -EIO; 31841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3185c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3186c0eae66eSBenny Halevy if (unlikely(!p)) 3187c0eae66eSBenny Halevy goto out_overflow; 3188cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31891da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31903110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31911da177e4SLinus Torvalds return -EIO; 31921da177e4SLinus Torvalds } 31931da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3194409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 31951da177e4SLinus Torvalds } 3196bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3197409924e4STrond Myklebust return ret; 3198c0eae66eSBenny Halevy out_overflow: 3199c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3200c0eae66eSBenny Halevy return -EIO; 32011da177e4SLinus Torvalds } 32021da177e4SLinus Torvalds 3203264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3204264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3205264e6351SChuck Lever { 3206264e6351SChuck Lever __be32 *p; 3207264e6351SChuck Lever 3208264e6351SChuck Lever *type = 0; 3209264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3210264e6351SChuck Lever return -EIO; 3211264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3212264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3213264e6351SChuck Lever if (unlikely(!p)) 3214264e6351SChuck Lever goto out_overflow; 3215264e6351SChuck Lever *type = be32_to_cpup(p); 3216264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3217264e6351SChuck Lever } 3218264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3219264e6351SChuck Lever return 0; 3220264e6351SChuck Lever out_overflow: 3221264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3222264e6351SChuck Lever return -EIO; 3223264e6351SChuck Lever } 3224264e6351SChuck Lever 32251da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 32261da177e4SLinus Torvalds { 32278687b63aSAl Viro __be32 *p; 3228409924e4STrond Myklebust int ret = 0; 32291da177e4SLinus Torvalds 32301da177e4SLinus Torvalds *change = 0; 32311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 32321da177e4SLinus Torvalds return -EIO; 32331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3234c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3235c0eae66eSBenny Halevy if (unlikely(!p)) 3236c0eae66eSBenny Halevy goto out_overflow; 3237cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 32381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3239409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 32401da177e4SLinus Torvalds } 32413110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32421da177e4SLinus Torvalds (unsigned long long)*change); 3243409924e4STrond Myklebust return ret; 3244c0eae66eSBenny Halevy out_overflow: 3245c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3246c0eae66eSBenny Halevy return -EIO; 32471da177e4SLinus Torvalds } 32481da177e4SLinus Torvalds 32491da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32501da177e4SLinus Torvalds { 32518687b63aSAl Viro __be32 *p; 3252409924e4STrond Myklebust int ret = 0; 32531da177e4SLinus Torvalds 32541da177e4SLinus Torvalds *size = 0; 32551da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32561da177e4SLinus Torvalds return -EIO; 32571da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3258c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3259c0eae66eSBenny Halevy if (unlikely(!p)) 3260c0eae66eSBenny Halevy goto out_overflow; 3261cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32621da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3263409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32641da177e4SLinus Torvalds } 32653110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3266409924e4STrond Myklebust return ret; 3267c0eae66eSBenny Halevy out_overflow: 3268c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3269c0eae66eSBenny Halevy return -EIO; 32701da177e4SLinus Torvalds } 32711da177e4SLinus Torvalds 32721da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32731da177e4SLinus Torvalds { 32748687b63aSAl Viro __be32 *p; 32751da177e4SLinus Torvalds 32761da177e4SLinus Torvalds *res = 0; 32771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32781da177e4SLinus Torvalds return -EIO; 32791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3280c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3281c0eae66eSBenny Halevy if (unlikely(!p)) 3282c0eae66eSBenny Halevy goto out_overflow; 3283cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32851da177e4SLinus Torvalds } 32863110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32871da177e4SLinus Torvalds return 0; 3288c0eae66eSBenny Halevy out_overflow: 3289c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3290c0eae66eSBenny Halevy return -EIO; 32911da177e4SLinus Torvalds } 32921da177e4SLinus Torvalds 32931da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32941da177e4SLinus Torvalds { 32958687b63aSAl Viro __be32 *p; 32961da177e4SLinus Torvalds 32971da177e4SLinus Torvalds *res = 0; 32981da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32991da177e4SLinus Torvalds return -EIO; 33001da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3301c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3302c0eae66eSBenny Halevy if (unlikely(!p)) 3303c0eae66eSBenny Halevy goto out_overflow; 3304cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33061da177e4SLinus Torvalds } 33073110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33081da177e4SLinus Torvalds return 0; 3309c0eae66eSBenny Halevy out_overflow: 3310c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3311c0eae66eSBenny Halevy return -EIO; 33121da177e4SLinus Torvalds } 33131da177e4SLinus Torvalds 33148b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 33151da177e4SLinus Torvalds { 33168687b63aSAl Viro __be32 *p; 3317409924e4STrond Myklebust int ret = 0; 33181da177e4SLinus Torvalds 33191da177e4SLinus Torvalds fsid->major = 0; 33201da177e4SLinus Torvalds fsid->minor = 0; 33211da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 33221da177e4SLinus Torvalds return -EIO; 33231da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3324c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3325c0eae66eSBenny Halevy if (unlikely(!p)) 3326c0eae66eSBenny Halevy goto out_overflow; 33273ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3328cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 33291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3330409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 33311da177e4SLinus Torvalds } 33323110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 33331da177e4SLinus Torvalds (unsigned long long)fsid->major, 33341da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3335409924e4STrond Myklebust return ret; 3336c0eae66eSBenny Halevy out_overflow: 3337c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3338c0eae66eSBenny Halevy return -EIO; 33391da177e4SLinus Torvalds } 33401da177e4SLinus Torvalds 33411da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33421da177e4SLinus Torvalds { 33438687b63aSAl Viro __be32 *p; 33441da177e4SLinus Torvalds 33451da177e4SLinus Torvalds *res = 60; 33461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33471da177e4SLinus Torvalds return -EIO; 33481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3349c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3350c0eae66eSBenny Halevy if (unlikely(!p)) 3351c0eae66eSBenny Halevy goto out_overflow; 3352cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 33541da177e4SLinus Torvalds } 33553110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33561da177e4SLinus Torvalds return 0; 3357c0eae66eSBenny Halevy out_overflow: 3358c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3359c0eae66eSBenny Halevy return -EIO; 33601da177e4SLinus Torvalds } 33611da177e4SLinus Torvalds 3362ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3363ae42c70aSBryan Schumaker { 3364ae42c70aSBryan Schumaker __be32 *p; 3365ae42c70aSBryan Schumaker 3366ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3367ae42c70aSBryan Schumaker return -EIO; 3368ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3369ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3370ae42c70aSBryan Schumaker if (unlikely(!p)) 3371ae42c70aSBryan Schumaker goto out_overflow; 3372ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3373ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3374ae42c70aSBryan Schumaker } 3375ae42c70aSBryan Schumaker return 0; 3376ae42c70aSBryan Schumaker out_overflow: 3377ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3378ae42c70aSBryan Schumaker return -EIO; 3379ae42c70aSBryan Schumaker } 3380ae42c70aSBryan Schumaker 33818c61282fSKinglong Mee static int decode_attr_exclcreat_supported(struct xdr_stream *xdr, 33828c61282fSKinglong Mee uint32_t *bitmap, uint32_t *bitmask) 33838c61282fSKinglong Mee { 33848c61282fSKinglong Mee if (likely(bitmap[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT)) { 33858c61282fSKinglong Mee int ret; 33868c61282fSKinglong Mee ret = decode_attr_bitmap(xdr, bitmask); 33878c61282fSKinglong Mee if (unlikely(ret < 0)) 33888c61282fSKinglong Mee return ret; 33898c61282fSKinglong Mee bitmap[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT; 33908c61282fSKinglong Mee } else 33918c61282fSKinglong Mee bitmask[0] = bitmask[1] = bitmask[2] = 0; 33928c61282fSKinglong Mee dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 33938c61282fSKinglong Mee bitmask[0], bitmask[1], bitmask[2]); 33948c61282fSKinglong Mee return 0; 33958c61282fSKinglong Mee } 33968c61282fSKinglong Mee 3397ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3398ae42c70aSBryan Schumaker { 3399ae42c70aSBryan Schumaker __be32 *p; 3400ae42c70aSBryan Schumaker int len; 3401ae42c70aSBryan Schumaker 34027ad07353STrond Myklebust if (fh != NULL) 3403ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3404ae42c70aSBryan Schumaker 3405ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3406ae42c70aSBryan Schumaker return -EIO; 3407ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3408ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3409ae42c70aSBryan Schumaker if (unlikely(!p)) 3410ae42c70aSBryan Schumaker goto out_overflow; 3411ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3412ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3413ae42c70aSBryan Schumaker return -EIO; 3414ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3415ae42c70aSBryan Schumaker if (unlikely(!p)) 3416ae42c70aSBryan Schumaker goto out_overflow; 34177ad07353STrond Myklebust if (fh != NULL) { 3418ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 34197ad07353STrond Myklebust fh->size = len; 34207ad07353STrond Myklebust } 3421ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3422ae42c70aSBryan Schumaker } 3423ae42c70aSBryan Schumaker return 0; 3424ae42c70aSBryan Schumaker out_overflow: 3425ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3426ae42c70aSBryan Schumaker return -EIO; 3427ae42c70aSBryan Schumaker } 3428ae42c70aSBryan Schumaker 34291da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34301da177e4SLinus Torvalds { 34318687b63aSAl Viro __be32 *p; 34321da177e4SLinus Torvalds 3433a1800acaSMalahal Naineni *res = 0; 34341da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 34351da177e4SLinus Torvalds return -EIO; 34361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3437c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3438c0eae66eSBenny Halevy if (unlikely(!p)) 3439c0eae66eSBenny Halevy goto out_overflow; 3440cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34411da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 34421da177e4SLinus Torvalds } 34433110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 34441da177e4SLinus Torvalds return 0; 3445c0eae66eSBenny Halevy out_overflow: 3446c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3447c0eae66eSBenny Halevy return -EIO; 34481da177e4SLinus Torvalds } 34491da177e4SLinus Torvalds 34501da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 34511da177e4SLinus Torvalds { 34528687b63aSAl Viro __be32 *p; 3453409924e4STrond Myklebust int ret = 0; 34541da177e4SLinus Torvalds 34551da177e4SLinus Torvalds *fileid = 0; 34561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34571da177e4SLinus Torvalds return -EIO; 34581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3459c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3460c0eae66eSBenny Halevy if (unlikely(!p)) 3461c0eae66eSBenny Halevy goto out_overflow; 3462cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3464409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34651da177e4SLinus Torvalds } 34663110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3467409924e4STrond Myklebust return ret; 3468c0eae66eSBenny Halevy out_overflow: 3469c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3470c0eae66eSBenny Halevy return -EIO; 34711da177e4SLinus Torvalds } 34721da177e4SLinus Torvalds 347399baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 347499baf625SManoj Naik { 34758687b63aSAl Viro __be32 *p; 3476409924e4STrond Myklebust int ret = 0; 347799baf625SManoj Naik 347899baf625SManoj Naik *fileid = 0; 347999baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 348099baf625SManoj Naik return -EIO; 348199baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3482c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3483c0eae66eSBenny Halevy if (unlikely(!p)) 3484c0eae66eSBenny Halevy goto out_overflow; 3485cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 348699baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 348728331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 348899baf625SManoj Naik } 34893110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3490409924e4STrond Myklebust return ret; 3491c0eae66eSBenny Halevy out_overflow: 3492c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3493c0eae66eSBenny Halevy return -EIO; 349499baf625SManoj Naik } 349599baf625SManoj Naik 34961da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34971da177e4SLinus Torvalds { 34988687b63aSAl Viro __be32 *p; 34991da177e4SLinus Torvalds int status = 0; 35001da177e4SLinus Torvalds 35011da177e4SLinus Torvalds *res = 0; 35021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 35031da177e4SLinus Torvalds return -EIO; 35041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3505c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3506c0eae66eSBenny Halevy if (unlikely(!p)) 3507c0eae66eSBenny Halevy goto out_overflow; 3508cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35091da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 35101da177e4SLinus Torvalds } 35113110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 35121da177e4SLinus Torvalds return status; 3513c0eae66eSBenny Halevy out_overflow: 3514c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3515c0eae66eSBenny Halevy return -EIO; 35161da177e4SLinus Torvalds } 35171da177e4SLinus Torvalds 35181da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35191da177e4SLinus Torvalds { 35208687b63aSAl Viro __be32 *p; 35211da177e4SLinus Torvalds int status = 0; 35221da177e4SLinus Torvalds 35231da177e4SLinus Torvalds *res = 0; 35241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35251da177e4SLinus Torvalds return -EIO; 35261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3527c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3528c0eae66eSBenny Halevy if (unlikely(!p)) 3529c0eae66eSBenny Halevy goto out_overflow; 3530cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35321da177e4SLinus Torvalds } 35333110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35341da177e4SLinus Torvalds return status; 3535c0eae66eSBenny Halevy out_overflow: 3536c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3537c0eae66eSBenny Halevy return -EIO; 35381da177e4SLinus Torvalds } 35391da177e4SLinus Torvalds 35401da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35411da177e4SLinus Torvalds { 35428687b63aSAl Viro __be32 *p; 35431da177e4SLinus Torvalds int status = 0; 35441da177e4SLinus Torvalds 35451da177e4SLinus Torvalds *res = 0; 35461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 35471da177e4SLinus Torvalds return -EIO; 35481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3549c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3550c0eae66eSBenny Halevy if (unlikely(!p)) 3551c0eae66eSBenny Halevy goto out_overflow; 3552cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 35541da177e4SLinus Torvalds } 35553110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 35561da177e4SLinus Torvalds return status; 3557c0eae66eSBenny Halevy out_overflow: 3558c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3559c0eae66eSBenny Halevy return -EIO; 35601da177e4SLinus Torvalds } 35611da177e4SLinus Torvalds 35627aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35637aaa0b3bSManoj Naik { 3564464ad6b1SChuck Lever u32 n; 35658687b63aSAl Viro __be32 *p; 35667aaa0b3bSManoj Naik int status = 0; 35677aaa0b3bSManoj Naik 3568c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3569c0eae66eSBenny Halevy if (unlikely(!p)) 3570c0eae66eSBenny Halevy goto out_overflow; 3571cccddf4fSBenny Halevy n = be32_to_cpup(p); 357233a43f28SAndy Adamson if (n == 0) 357333a43f28SAndy Adamson goto root_path; 357402a2976cSChuck Lever dprintk("pathname4: "); 3575809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3576809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3577809b426cSTrond Myklebust goto out_eio; 3578809b426cSTrond Myklebust } 3579809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 35807aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35817aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35827aaa0b3bSManoj Naik if (unlikely(status != 0)) 35837aaa0b3bSManoj Naik goto out_eio; 358495a13f7bSTrond Myklebust ifdebug (XDR) 358502a2976cSChuck Lever pr_cont("%s%.*s ", 358602a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 358702a2976cSChuck Lever component->len, component->data); 35887aaa0b3bSManoj Naik } 35897aaa0b3bSManoj Naik out: 35907aaa0b3bSManoj Naik return status; 359133a43f28SAndy Adamson root_path: 359233a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 359333a43f28SAndy Adamson path->ncomponents = 1; 359433a43f28SAndy Adamson path->components[0].len=0; 359533a43f28SAndy Adamson path->components[0].data=NULL; 359602a2976cSChuck Lever dprintk("pathname4: /\n"); 359733a43f28SAndy Adamson goto out; 35987aaa0b3bSManoj Naik out_eio: 35997aaa0b3bSManoj Naik dprintk(" status %d", status); 36007aaa0b3bSManoj Naik status = -EIO; 36017aaa0b3bSManoj Naik goto out; 3602c0eae66eSBenny Halevy out_overflow: 3603c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3604c0eae66eSBenny Halevy return -EIO; 36057aaa0b3bSManoj Naik } 36067aaa0b3bSManoj Naik 36077aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3608683b57b4STrond Myklebust { 3609683b57b4STrond Myklebust int n; 36108687b63aSAl Viro __be32 *p; 3611683b57b4STrond Myklebust int status = -EIO; 3612683b57b4STrond Myklebust 3613683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3614683b57b4STrond Myklebust goto out; 3615683b57b4STrond Myklebust status = 0; 3616683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3617683b57b4STrond Myklebust goto out; 36188b7e3f49STrond Myklebust status = -EIO; 36198b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36208b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36218b7e3f49STrond Myklebust goto out; 362202a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 36237aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3624683b57b4STrond Myklebust if (unlikely(status != 0)) 3625683b57b4STrond Myklebust goto out; 3626c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3627c0eae66eSBenny Halevy if (unlikely(!p)) 3628c0eae66eSBenny Halevy goto out_overflow; 3629cccddf4fSBenny Halevy n = be32_to_cpup(p); 3630683b57b4STrond Myklebust if (n <= 0) 3631683b57b4STrond Myklebust goto out_eio; 3632809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3633464ad6b1SChuck Lever u32 m; 3634809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3635683b57b4STrond Myklebust 3636809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3637809b426cSTrond Myklebust break; 3638809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3639c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3640c0eae66eSBenny Halevy if (unlikely(!p)) 3641c0eae66eSBenny Halevy goto out_overflow; 3642cccddf4fSBenny Halevy m = be32_to_cpup(p); 36437aaa0b3bSManoj Naik 364402a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3645809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3646809b426cSTrond Myklebust struct nfs4_string *server; 3647809b426cSTrond Myklebust 3648809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3649464ad6b1SChuck Lever unsigned int i; 3650464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3651464ad6b1SChuck Lever "returned for location %u\n", 36523110ff80SHarvey Harrison __func__, 3653464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3654464ad6b1SChuck Lever m, res->nlocations); 36557aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36562e42c3e2STrond Myklebust unsigned int len; 36577aaa0b3bSManoj Naik char *data; 36587aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3659683b57b4STrond Myklebust if (unlikely(status != 0)) 3660683b57b4STrond Myklebust goto out_eio; 36617aaa0b3bSManoj Naik } 3662809b426cSTrond Myklebust break; 36637aaa0b3bSManoj Naik } 3664809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3665809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3666809b426cSTrond Myklebust if (unlikely(status != 0)) 3667809b426cSTrond Myklebust goto out_eio; 3668809b426cSTrond Myklebust dprintk("%s ", server->data); 36697aaa0b3bSManoj Naik } 36707aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36717aaa0b3bSManoj Naik if (unlikely(status != 0)) 36727aaa0b3bSManoj Naik goto out_eio; 3673683b57b4STrond Myklebust } 3674409924e4STrond Myklebust if (res->nlocations != 0) 367581934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3676683b57b4STrond Myklebust out: 36773110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3678683b57b4STrond Myklebust return status; 3679c0eae66eSBenny Halevy out_overflow: 3680c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3681683b57b4STrond Myklebust out_eio: 3682683b57b4STrond Myklebust status = -EIO; 3683683b57b4STrond Myklebust goto out; 3684683b57b4STrond Myklebust } 3685683b57b4STrond Myklebust 36861da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36871da177e4SLinus Torvalds { 36888687b63aSAl Viro __be32 *p; 36891da177e4SLinus Torvalds int status = 0; 36901da177e4SLinus Torvalds 36911da177e4SLinus Torvalds *res = 0; 36921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36931da177e4SLinus Torvalds return -EIO; 36941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3695c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3696c0eae66eSBenny Halevy if (unlikely(!p)) 3697c0eae66eSBenny Halevy goto out_overflow; 3698cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36991da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 37001da177e4SLinus Torvalds } 37013110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 37021da177e4SLinus Torvalds return status; 3703c0eae66eSBenny Halevy out_overflow: 3704c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3705c0eae66eSBenny Halevy return -EIO; 37061da177e4SLinus Torvalds } 37071da177e4SLinus Torvalds 37081da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 37091da177e4SLinus Torvalds { 37108687b63aSAl Viro __be32 *p; 37111da177e4SLinus Torvalds int status = 0; 37121da177e4SLinus Torvalds 37131da177e4SLinus Torvalds *maxlink = 1; 37141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 37151da177e4SLinus Torvalds return -EIO; 37161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3717c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3718c0eae66eSBenny Halevy if (unlikely(!p)) 3719c0eae66eSBenny Halevy goto out_overflow; 3720cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37211da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37221da177e4SLinus Torvalds } 37233110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37241da177e4SLinus Torvalds return status; 3725c0eae66eSBenny Halevy out_overflow: 3726c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3727c0eae66eSBenny Halevy return -EIO; 37281da177e4SLinus Torvalds } 37291da177e4SLinus Torvalds 37301da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37311da177e4SLinus Torvalds { 37328687b63aSAl Viro __be32 *p; 37331da177e4SLinus Torvalds int status = 0; 37341da177e4SLinus Torvalds 37351da177e4SLinus Torvalds *maxname = 1024; 37361da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37371da177e4SLinus Torvalds return -EIO; 37381da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3739c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3740c0eae66eSBenny Halevy if (unlikely(!p)) 3741c0eae66eSBenny Halevy goto out_overflow; 3742cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37441da177e4SLinus Torvalds } 37453110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 37461da177e4SLinus Torvalds return status; 3747c0eae66eSBenny Halevy out_overflow: 3748c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3749c0eae66eSBenny Halevy return -EIO; 37501da177e4SLinus Torvalds } 37511da177e4SLinus Torvalds 37521da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37531da177e4SLinus Torvalds { 37548687b63aSAl Viro __be32 *p; 37551da177e4SLinus Torvalds int status = 0; 37561da177e4SLinus Torvalds 37571da177e4SLinus Torvalds *res = 1024; 37581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 37591da177e4SLinus Torvalds return -EIO; 37601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37611da177e4SLinus Torvalds uint64_t maxread; 3762c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3763c0eae66eSBenny Halevy if (unlikely(!p)) 3764c0eae66eSBenny Halevy goto out_overflow; 3765cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37661da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37671da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37681da177e4SLinus Torvalds *res = (uint32_t)maxread; 37691da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37701da177e4SLinus Torvalds } 37713110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37721da177e4SLinus Torvalds return status; 3773c0eae66eSBenny Halevy out_overflow: 3774c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3775c0eae66eSBenny Halevy return -EIO; 37761da177e4SLinus Torvalds } 37771da177e4SLinus Torvalds 37781da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37791da177e4SLinus Torvalds { 37808687b63aSAl Viro __be32 *p; 37811da177e4SLinus Torvalds int status = 0; 37821da177e4SLinus Torvalds 37831da177e4SLinus Torvalds *res = 1024; 37841da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37851da177e4SLinus Torvalds return -EIO; 37861da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37871da177e4SLinus Torvalds uint64_t maxwrite; 3788c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3789c0eae66eSBenny Halevy if (unlikely(!p)) 3790c0eae66eSBenny Halevy goto out_overflow; 3791cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37921da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37931da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37941da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37951da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37961da177e4SLinus Torvalds } 37973110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37981da177e4SLinus Torvalds return status; 3799c0eae66eSBenny Halevy out_overflow: 3800c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3801c0eae66eSBenny Halevy return -EIO; 38021da177e4SLinus Torvalds } 38031da177e4SLinus Torvalds 3804bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 38051da177e4SLinus Torvalds { 3806bca79478STrond Myklebust uint32_t tmp; 38078687b63aSAl Viro __be32 *p; 3808409924e4STrond Myklebust int ret = 0; 38091da177e4SLinus Torvalds 38101da177e4SLinus Torvalds *mode = 0; 38111da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38121da177e4SLinus Torvalds return -EIO; 38131da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3814c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3815c0eae66eSBenny Halevy if (unlikely(!p)) 3816c0eae66eSBenny Halevy goto out_overflow; 3817cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3818bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38191da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3820409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38211da177e4SLinus Torvalds } 38223110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3823409924e4STrond Myklebust return ret; 3824c0eae66eSBenny Halevy out_overflow: 3825c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3826c0eae66eSBenny Halevy return -EIO; 38271da177e4SLinus Torvalds } 38281da177e4SLinus Torvalds 38291da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38301da177e4SLinus Torvalds { 38318687b63aSAl Viro __be32 *p; 3832409924e4STrond Myklebust int ret = 0; 38331da177e4SLinus Torvalds 38341da177e4SLinus Torvalds *nlink = 1; 38351da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38361da177e4SLinus Torvalds return -EIO; 38371da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3838c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3839c0eae66eSBenny Halevy if (unlikely(!p)) 3840c0eae66eSBenny Halevy goto out_overflow; 3841cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38421da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3843409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38441da177e4SLinus Torvalds } 38453110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3846409924e4STrond Myklebust return ret; 3847c0eae66eSBenny Halevy out_overflow: 3848c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3849c0eae66eSBenny Halevy return -EIO; 38501da177e4SLinus Torvalds } 38511da177e4SLinus Torvalds 385280e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3853e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 38546926afd1STrond Myklebust struct nfs4_string *owner_name) 38551da177e4SLinus Torvalds { 38568687b63aSAl Viro uint32_t len; 38578687b63aSAl Viro __be32 *p; 3858409924e4STrond Myklebust int ret = 0; 38591da177e4SLinus Torvalds 3860e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 38611da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38621da177e4SLinus Torvalds return -EIO; 38631da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3864c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3865c0eae66eSBenny Halevy if (unlikely(!p)) 3866c0eae66eSBenny Halevy goto out_overflow; 3867cccddf4fSBenny Halevy len = be32_to_cpup(p); 3868c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3869c0eae66eSBenny Halevy if (unlikely(!p)) 3870c0eae66eSBenny Halevy goto out_overflow; 38716926afd1STrond Myklebust if (owner_name != NULL) { 38726926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38736926afd1STrond Myklebust if (owner_name->data != NULL) { 38746926afd1STrond Myklebust owner_name->len = len; 38756926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38766926afd1STrond Myklebust } 387780e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3878e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3879409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3880409924e4STrond Myklebust else 38811da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38823110ff80SHarvey Harrison __func__); 38831da177e4SLinus Torvalds } else 3884fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38853110ff80SHarvey Harrison __func__, len); 38861da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38871da177e4SLinus Torvalds } 3888e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3889409924e4STrond Myklebust return ret; 3890c0eae66eSBenny Halevy out_overflow: 3891c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3892c0eae66eSBenny Halevy return -EIO; 38931da177e4SLinus Torvalds } 38941da177e4SLinus Torvalds 389580e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3896e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 38976926afd1STrond Myklebust struct nfs4_string *group_name) 38981da177e4SLinus Torvalds { 38998687b63aSAl Viro uint32_t len; 39008687b63aSAl Viro __be32 *p; 3901409924e4STrond Myklebust int ret = 0; 39021da177e4SLinus Torvalds 3903e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 39041da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 39051da177e4SLinus Torvalds return -EIO; 39061da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3907c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3908c0eae66eSBenny Halevy if (unlikely(!p)) 3909c0eae66eSBenny Halevy goto out_overflow; 3910cccddf4fSBenny Halevy len = be32_to_cpup(p); 3911c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3912c0eae66eSBenny Halevy if (unlikely(!p)) 3913c0eae66eSBenny Halevy goto out_overflow; 39146926afd1STrond Myklebust if (group_name != NULL) { 39156926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 39166926afd1STrond Myklebust if (group_name->data != NULL) { 39176926afd1STrond Myklebust group_name->len = len; 39186926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 39196926afd1STrond Myklebust } 392080e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3921e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3922409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3923409924e4STrond Myklebust else 39241da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 39253110ff80SHarvey Harrison __func__); 39261da177e4SLinus Torvalds } else 3927fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39283110ff80SHarvey Harrison __func__, len); 39291da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 39301da177e4SLinus Torvalds } 3931e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3932409924e4STrond Myklebust return ret; 3933c0eae66eSBenny Halevy out_overflow: 3934c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3935c0eae66eSBenny Halevy return -EIO; 39361da177e4SLinus Torvalds } 39371da177e4SLinus Torvalds 39381da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39391da177e4SLinus Torvalds { 39408687b63aSAl Viro uint32_t major = 0, minor = 0; 39418687b63aSAl Viro __be32 *p; 3942409924e4STrond Myklebust int ret = 0; 39431da177e4SLinus Torvalds 39441da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39451da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39461da177e4SLinus Torvalds return -EIO; 39471da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39481da177e4SLinus Torvalds dev_t tmp; 39491da177e4SLinus Torvalds 3950c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3951c0eae66eSBenny Halevy if (unlikely(!p)) 3952c0eae66eSBenny Halevy goto out_overflow; 39536f723f77SBenny Halevy major = be32_to_cpup(p++); 3954cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39551da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39561da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39571da177e4SLinus Torvalds *rdev = tmp; 39581da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3959409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39601da177e4SLinus Torvalds } 39613110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3962409924e4STrond Myklebust return ret; 3963c0eae66eSBenny Halevy out_overflow: 3964c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3965c0eae66eSBenny Halevy return -EIO; 39661da177e4SLinus Torvalds } 39671da177e4SLinus Torvalds 39681da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39691da177e4SLinus Torvalds { 39708687b63aSAl Viro __be32 *p; 39711da177e4SLinus Torvalds int status = 0; 39721da177e4SLinus Torvalds 39731da177e4SLinus Torvalds *res = 0; 39741da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39751da177e4SLinus Torvalds return -EIO; 39761da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3977c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3978c0eae66eSBenny Halevy if (unlikely(!p)) 3979c0eae66eSBenny Halevy goto out_overflow; 3980cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39811da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39821da177e4SLinus Torvalds } 39833110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39841da177e4SLinus Torvalds return status; 3985c0eae66eSBenny Halevy out_overflow: 3986c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3987c0eae66eSBenny Halevy return -EIO; 39881da177e4SLinus Torvalds } 39891da177e4SLinus Torvalds 39901da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39911da177e4SLinus Torvalds { 39928687b63aSAl Viro __be32 *p; 39931da177e4SLinus Torvalds int status = 0; 39941da177e4SLinus Torvalds 39951da177e4SLinus Torvalds *res = 0; 39961da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39971da177e4SLinus Torvalds return -EIO; 39981da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3999c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4000c0eae66eSBenny Halevy if (unlikely(!p)) 4001c0eae66eSBenny Halevy goto out_overflow; 4002cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40031da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 40041da177e4SLinus Torvalds } 40053110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 40061da177e4SLinus Torvalds return status; 4007c0eae66eSBenny Halevy out_overflow: 4008c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4009c0eae66eSBenny Halevy return -EIO; 40101da177e4SLinus Torvalds } 40111da177e4SLinus Torvalds 40121da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40131da177e4SLinus Torvalds { 40148687b63aSAl Viro __be32 *p; 40151da177e4SLinus Torvalds int status = 0; 40161da177e4SLinus Torvalds 40171da177e4SLinus Torvalds *res = 0; 40181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40191da177e4SLinus Torvalds return -EIO; 40201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4021c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4022c0eae66eSBenny Halevy if (unlikely(!p)) 4023c0eae66eSBenny Halevy goto out_overflow; 4024cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40261da177e4SLinus Torvalds } 40273110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40281da177e4SLinus Torvalds return status; 4029c0eae66eSBenny Halevy out_overflow: 4030c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4031c0eae66eSBenny Halevy return -EIO; 40321da177e4SLinus Torvalds } 40331da177e4SLinus Torvalds 40341da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40351da177e4SLinus Torvalds { 40368687b63aSAl Viro __be32 *p; 4037409924e4STrond Myklebust int ret = 0; 40381da177e4SLinus Torvalds 40391da177e4SLinus Torvalds *used = 0; 40401da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40411da177e4SLinus Torvalds return -EIO; 40421da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4043c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4044c0eae66eSBenny Halevy if (unlikely(!p)) 4045c0eae66eSBenny Halevy goto out_overflow; 4046cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40471da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4048409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40491da177e4SLinus Torvalds } 40503110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40511da177e4SLinus Torvalds (unsigned long long)*used); 4052409924e4STrond Myklebust return ret; 4053c0eae66eSBenny Halevy out_overflow: 4054c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4055c0eae66eSBenny Halevy return -EIO; 40561da177e4SLinus Torvalds } 40571da177e4SLinus Torvalds 40581da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40591da177e4SLinus Torvalds { 40608687b63aSAl Viro __be32 *p; 40611da177e4SLinus Torvalds uint64_t sec; 40621da177e4SLinus Torvalds uint32_t nsec; 40631da177e4SLinus Torvalds 4064c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4065c0eae66eSBenny Halevy if (unlikely(!p)) 4066c0eae66eSBenny Halevy goto out_overflow; 40673ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4068cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40691da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40701da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40711da177e4SLinus Torvalds return 0; 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_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40781da177e4SLinus Torvalds { 40791da177e4SLinus Torvalds int status = 0; 40801da177e4SLinus Torvalds 40811da177e4SLinus Torvalds time->tv_sec = 0; 40821da177e4SLinus Torvalds time->tv_nsec = 0; 40831da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40841da177e4SLinus Torvalds return -EIO; 40851da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40861da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4087409924e4STrond Myklebust if (status == 0) 4088409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40891da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40901da177e4SLinus Torvalds } 40913110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40921da177e4SLinus Torvalds return status; 40931da177e4SLinus Torvalds } 40941da177e4SLinus Torvalds 40951da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40961da177e4SLinus Torvalds { 40971da177e4SLinus Torvalds int status = 0; 40981da177e4SLinus Torvalds 40991da177e4SLinus Torvalds time->tv_sec = 0; 41001da177e4SLinus Torvalds time->tv_nsec = 0; 41011da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 41021da177e4SLinus Torvalds return -EIO; 41031da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 41041da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4105409924e4STrond Myklebust if (status == 0) 4106409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 41071da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 41081da177e4SLinus Torvalds } 41093110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 41101da177e4SLinus Torvalds return status; 41111da177e4SLinus Torvalds } 41121da177e4SLinus Torvalds 411355b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 411455b6e774SRicardo Labiaga struct timespec *time) 411555b6e774SRicardo Labiaga { 411655b6e774SRicardo Labiaga int status = 0; 411755b6e774SRicardo Labiaga 411855b6e774SRicardo Labiaga time->tv_sec = 0; 411955b6e774SRicardo Labiaga time->tv_nsec = 0; 412055b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 412155b6e774SRicardo Labiaga return -EIO; 412255b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 412355b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 412455b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 412555b6e774SRicardo Labiaga } 412655b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 412755b6e774SRicardo Labiaga (long)time->tv_nsec); 412855b6e774SRicardo Labiaga return status; 412955b6e774SRicardo Labiaga } 413055b6e774SRicardo Labiaga 4131aa9c2669SDavid Quigley static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap, 4132aa9c2669SDavid Quigley struct nfs4_label *label) 4133aa9c2669SDavid Quigley { 4134aa9c2669SDavid Quigley uint32_t pi = 0; 4135aa9c2669SDavid Quigley uint32_t lfs = 0; 4136aa9c2669SDavid Quigley __u32 len; 4137aa9c2669SDavid Quigley __be32 *p; 4138aa9c2669SDavid Quigley int status = 0; 4139aa9c2669SDavid Quigley 4140aa9c2669SDavid Quigley if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U))) 4141aa9c2669SDavid Quigley return -EIO; 4142aa9c2669SDavid Quigley if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) { 4143aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4144aa9c2669SDavid Quigley if (unlikely(!p)) 4145aa9c2669SDavid Quigley goto out_overflow; 4146aa9c2669SDavid Quigley lfs = be32_to_cpup(p++); 4147aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4148aa9c2669SDavid Quigley if (unlikely(!p)) 4149aa9c2669SDavid Quigley goto out_overflow; 4150aa9c2669SDavid Quigley pi = be32_to_cpup(p++); 4151aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4152aa9c2669SDavid Quigley if (unlikely(!p)) 4153aa9c2669SDavid Quigley goto out_overflow; 4154aa9c2669SDavid Quigley len = be32_to_cpup(p++); 4155aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, len); 4156aa9c2669SDavid Quigley if (unlikely(!p)) 4157aa9c2669SDavid Quigley goto out_overflow; 4158aa9c2669SDavid Quigley if (len < NFS4_MAXLABELLEN) { 4159aa9c2669SDavid Quigley if (label) { 4160aa9c2669SDavid Quigley memcpy(label->label, p, len); 4161aa9c2669SDavid Quigley label->len = len; 4162aa9c2669SDavid Quigley label->pi = pi; 4163aa9c2669SDavid Quigley label->lfs = lfs; 4164aa9c2669SDavid Quigley status = NFS_ATTR_FATTR_V4_SECURITY_LABEL; 4165aa9c2669SDavid Quigley } 4166aa9c2669SDavid Quigley bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL; 4167aa9c2669SDavid Quigley } else 4168aa9c2669SDavid Quigley printk(KERN_WARNING "%s: label too long (%u)!\n", 4169aa9c2669SDavid Quigley __func__, len); 4170aa9c2669SDavid Quigley } 4171aa9c2669SDavid Quigley if (label && label->label) 4172aa9c2669SDavid Quigley dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__, 4173aa9c2669SDavid Quigley (char *)label->label, label->len, label->pi, label->lfs); 4174aa9c2669SDavid Quigley return status; 4175aa9c2669SDavid Quigley 4176aa9c2669SDavid Quigley out_overflow: 4177aa9c2669SDavid Quigley print_overflow_msg(__func__, xdr); 4178aa9c2669SDavid Quigley return -EIO; 4179aa9c2669SDavid Quigley } 4180aa9c2669SDavid Quigley 41811da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41821da177e4SLinus Torvalds { 41831da177e4SLinus Torvalds int status = 0; 41841da177e4SLinus Torvalds 41851da177e4SLinus Torvalds time->tv_sec = 0; 41861da177e4SLinus Torvalds time->tv_nsec = 0; 41871da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 41881da177e4SLinus Torvalds return -EIO; 41891da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 41901da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4191409924e4STrond Myklebust if (status == 0) 4192409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 41931da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 41941da177e4SLinus Torvalds } 41953110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 41961da177e4SLinus Torvalds return status; 41971da177e4SLinus Torvalds } 41981da177e4SLinus Torvalds 4199256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 42001da177e4SLinus Torvalds { 42011da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4202256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 42031da177e4SLinus Torvalds 42041da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4205fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4206fe82a183SChuck Lever "%u %c %u\n", 42073110ff80SHarvey Harrison __func__, 42081da177e4SLinus Torvalds attrwords << 2, 42091da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 42101da177e4SLinus Torvalds nwords << 2); 42111da177e4SLinus Torvalds return -EIO; 42121da177e4SLinus Torvalds } 42131da177e4SLinus Torvalds return 0; 42141da177e4SLinus Torvalds } 42151da177e4SLinus Torvalds 42161da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42171da177e4SLinus Torvalds { 42188687b63aSAl Viro __be32 *p; 42191da177e4SLinus Torvalds 4220c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4221c0eae66eSBenny Halevy if (unlikely(!p)) 4222c0eae66eSBenny Halevy goto out_overflow; 42236f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 42243ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4225cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 42261da177e4SLinus Torvalds return 0; 4227c0eae66eSBenny Halevy out_overflow: 4228c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4229c0eae66eSBenny Halevy return -EIO; 42301da177e4SLinus Torvalds } 42311da177e4SLinus Torvalds 42326168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 42331da177e4SLinus Torvalds { 42348687b63aSAl Viro __be32 *p; 42351da177e4SLinus Torvalds uint32_t supp, acc; 42361da177e4SLinus Torvalds int status; 42371da177e4SLinus Torvalds 42381da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 42391da177e4SLinus Torvalds if (status) 42401da177e4SLinus Torvalds return status; 4241c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4242c0eae66eSBenny Halevy if (unlikely(!p)) 4243c0eae66eSBenny Halevy goto out_overflow; 42446f723f77SBenny Halevy supp = be32_to_cpup(p++); 4245cccddf4fSBenny Halevy acc = be32_to_cpup(p); 42466168f62cSWeston Andros Adamson *supported = supp; 42476168f62cSWeston Andros Adamson *access = acc; 42481da177e4SLinus Torvalds return 0; 4249c0eae66eSBenny Halevy out_overflow: 4250c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4251c0eae66eSBenny Halevy return -EIO; 42521da177e4SLinus Torvalds } 42531da177e4SLinus Torvalds 425407d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 42551da177e4SLinus Torvalds { 42568687b63aSAl Viro __be32 *p; 425707d30434SBenny Halevy 425807d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 425907d30434SBenny Halevy if (likely(p)) { 426007d30434SBenny Halevy memcpy(buf, p, len); 426107d30434SBenny Halevy return 0; 426207d30434SBenny Halevy } 426307d30434SBenny Halevy print_overflow_msg(__func__, xdr); 426407d30434SBenny Halevy return -EIO; 426507d30434SBenny Halevy } 426607d30434SBenny Halevy 426707d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 426807d30434SBenny Halevy { 42692d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 42701da177e4SLinus Torvalds } 42711da177e4SLinus Torvalds 42721da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 42731da177e4SLinus Torvalds { 42741da177e4SLinus Torvalds int status; 42751da177e4SLinus Torvalds 42761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4277c1d51931STrond Myklebust if (status != -EIO) 4278c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 427907d30434SBenny Halevy if (!status) 428007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42811da177e4SLinus Torvalds return status; 42821da177e4SLinus Torvalds } 42831da177e4SLinus Torvalds 4284db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4285db942bbdSBenny Halevy { 4286cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 42871da177e4SLinus Torvalds } 42881da177e4SLinus Torvalds 42892f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 42902f2c63bcSTrond Myklebust { 42912f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 42922f2c63bcSTrond Myklebust } 42932f2c63bcSTrond Myklebust 42940b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 42951da177e4SLinus Torvalds { 42961da177e4SLinus Torvalds int status; 42971da177e4SLinus Torvalds 42981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4299db942bbdSBenny Halevy if (!status) 43002f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 43011da177e4SLinus Torvalds return status; 43021da177e4SLinus Torvalds } 43031da177e4SLinus Torvalds 43041da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43051da177e4SLinus Torvalds { 43068687b63aSAl Viro __be32 *p; 43071da177e4SLinus Torvalds uint32_t bmlen; 43081da177e4SLinus Torvalds int status; 43091da177e4SLinus Torvalds 43101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 43111da177e4SLinus Torvalds if (status) 43121da177e4SLinus Torvalds return status; 43131da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 43141da177e4SLinus Torvalds return status; 4315c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4316c0eae66eSBenny Halevy if (unlikely(!p)) 4317c0eae66eSBenny Halevy goto out_overflow; 4318cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4319c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4320c0eae66eSBenny Halevy if (likely(p)) 43211da177e4SLinus Torvalds return 0; 4322c0eae66eSBenny Halevy out_overflow: 4323c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4324c0eae66eSBenny Halevy return -EIO; 43251da177e4SLinus Torvalds } 43261da177e4SLinus Torvalds 43271da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 43281da177e4SLinus Torvalds { 4329256e48bbSTrond Myklebust unsigned int savep; 4330dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43311da177e4SLinus Torvalds int status; 43321da177e4SLinus Torvalds 43331da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43341da177e4SLinus Torvalds goto xdr_error; 43351da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43361da177e4SLinus Torvalds goto xdr_error; 43371da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43381da177e4SLinus Torvalds goto xdr_error; 43391da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 43401da177e4SLinus Torvalds goto xdr_error; 4341264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4342264e6351SChuck Lever &res->fh_expire_type)) != 0) 4343264e6351SChuck Lever goto xdr_error; 43441da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 43451da177e4SLinus Torvalds goto xdr_error; 43461da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 43471da177e4SLinus Torvalds goto xdr_error; 43481da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 43491da177e4SLinus Torvalds goto xdr_error; 43508c61282fSKinglong Mee if ((status = decode_attr_exclcreat_supported(xdr, bitmap, 43518c61282fSKinglong Mee res->exclcreat_bitmask)) != 0) 43528c61282fSKinglong Mee goto xdr_error; 43531da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43541da177e4SLinus Torvalds xdr_error: 43553110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43561da177e4SLinus Torvalds return status; 43571da177e4SLinus Torvalds } 43581da177e4SLinus Torvalds 43591da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 43601da177e4SLinus Torvalds { 4361256e48bbSTrond Myklebust unsigned int savep; 4362dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43631da177e4SLinus Torvalds int status; 43641da177e4SLinus Torvalds 43651da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43661da177e4SLinus Torvalds goto xdr_error; 43671da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43681da177e4SLinus Torvalds goto xdr_error; 43691da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43701da177e4SLinus Torvalds goto xdr_error; 43711da177e4SLinus Torvalds 43721da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 43731da177e4SLinus Torvalds goto xdr_error; 43741da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 43751da177e4SLinus Torvalds goto xdr_error; 43761da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 43771da177e4SLinus Torvalds goto xdr_error; 43781da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 43791da177e4SLinus Torvalds goto xdr_error; 43801da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 43811da177e4SLinus Torvalds goto xdr_error; 43821da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 43831da177e4SLinus Torvalds goto xdr_error; 43841da177e4SLinus Torvalds 43851da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43861da177e4SLinus Torvalds xdr_error: 43873110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43881da177e4SLinus Torvalds return status; 43891da177e4SLinus Torvalds } 43901da177e4SLinus Torvalds 43911da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 43921da177e4SLinus Torvalds { 4393256e48bbSTrond Myklebust unsigned int savep; 4394dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43951da177e4SLinus Torvalds int status; 43961da177e4SLinus Torvalds 43971da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43981da177e4SLinus Torvalds goto xdr_error; 43991da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 44001da177e4SLinus Torvalds goto xdr_error; 44011da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 44021da177e4SLinus Torvalds goto xdr_error; 44031da177e4SLinus Torvalds 44041da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 44051da177e4SLinus Torvalds goto xdr_error; 44061da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 44071da177e4SLinus Torvalds goto xdr_error; 44081da177e4SLinus Torvalds 44091da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44101da177e4SLinus Torvalds xdr_error: 44113110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44121da177e4SLinus Torvalds return status; 44131da177e4SLinus Torvalds } 44141da177e4SLinus Torvalds 441588034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 441688034c3dSAndy Adamson uint32_t *bitmap, 441788034c3dSAndy Adamson uint64_t *res, 441888034c3dSAndy Adamson uint32_t hint_bit) 441988034c3dSAndy Adamson { 442088034c3dSAndy Adamson __be32 *p; 442188034c3dSAndy Adamson 442288034c3dSAndy Adamson *res = 0; 442388034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 442488034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 442588034c3dSAndy Adamson if (unlikely(!p)) 442688034c3dSAndy Adamson goto out_overflow; 442788034c3dSAndy Adamson xdr_decode_hyper(p, res); 442888034c3dSAndy Adamson } 442988034c3dSAndy Adamson return 0; 443088034c3dSAndy Adamson out_overflow: 443188034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 443288034c3dSAndy Adamson return -EIO; 443388034c3dSAndy Adamson } 443488034c3dSAndy Adamson 443588034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 443688034c3dSAndy Adamson struct nfs4_threshold *res) 443788034c3dSAndy Adamson { 4438256e48bbSTrond Myklebust __be32 *p; 4439256e48bbSTrond Myklebust unsigned int savep; 444088034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 444188034c3dSAndy Adamson int status; 444288034c3dSAndy Adamson 444388034c3dSAndy Adamson /* layout type */ 444488034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 444588034c3dSAndy Adamson if (unlikely(!p)) { 444688034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 444788034c3dSAndy Adamson return -EIO; 444888034c3dSAndy Adamson } 444988034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 445088034c3dSAndy Adamson 445188034c3dSAndy Adamson /* thi_hintset bitmap */ 445288034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 445388034c3dSAndy Adamson if (status < 0) 445488034c3dSAndy Adamson goto xdr_error; 445588034c3dSAndy Adamson 445688034c3dSAndy Adamson /* thi_hintlist length */ 445788034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 445888034c3dSAndy Adamson if (status < 0) 445988034c3dSAndy Adamson goto xdr_error; 446088034c3dSAndy Adamson /* thi_hintlist */ 446188034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 446288034c3dSAndy Adamson if (status < 0) 446388034c3dSAndy Adamson goto xdr_error; 446488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 446588034c3dSAndy Adamson if (status < 0) 446688034c3dSAndy Adamson goto xdr_error; 446788034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 446888034c3dSAndy Adamson THRESHOLD_RD_IO); 446988034c3dSAndy Adamson if (status < 0) 447088034c3dSAndy Adamson goto xdr_error; 447188034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 447288034c3dSAndy Adamson THRESHOLD_WR_IO); 447388034c3dSAndy Adamson if (status < 0) 447488034c3dSAndy Adamson goto xdr_error; 447588034c3dSAndy Adamson 447688034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 447788034c3dSAndy Adamson res->bm = bitmap[0]; 447888034c3dSAndy Adamson 447988034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 448088034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 448188034c3dSAndy Adamson res->wr_io_sz); 448288034c3dSAndy Adamson xdr_error: 448388034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 448488034c3dSAndy Adamson return status; 448588034c3dSAndy Adamson } 448688034c3dSAndy Adamson 448788034c3dSAndy Adamson /* 448888034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 448988034c3dSAndy Adamson */ 449088034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 449188034c3dSAndy Adamson uint32_t *bitmap, 449288034c3dSAndy Adamson struct nfs4_threshold *res) 449388034c3dSAndy Adamson { 449488034c3dSAndy Adamson __be32 *p; 449588034c3dSAndy Adamson int status = 0; 449688034c3dSAndy Adamson uint32_t num; 449788034c3dSAndy Adamson 449888034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 449988034c3dSAndy Adamson return -EIO; 4500029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 45011549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 45021549210fSTrond Myklebust if (unlikely(res == NULL)) 45031549210fSTrond Myklebust return -EREMOTEIO; 450488034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 450588034c3dSAndy Adamson if (unlikely(!p)) 450688034c3dSAndy Adamson goto out_overflow; 450788034c3dSAndy Adamson num = be32_to_cpup(p); 450888034c3dSAndy Adamson if (num == 0) 450988034c3dSAndy Adamson return 0; 451088034c3dSAndy Adamson if (num > 1) 451188034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 451288034c3dSAndy Adamson "drivers per filesystem not supported\n", 451388034c3dSAndy Adamson __func__); 451488034c3dSAndy Adamson 451588034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4516029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 451788034c3dSAndy Adamson } 451888034c3dSAndy Adamson return status; 451988034c3dSAndy Adamson out_overflow: 452088034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 452188034c3dSAndy Adamson return -EIO; 452288034c3dSAndy Adamson } 452388034c3dSAndy Adamson 4524ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4525ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 4526aa9c2669SDavid Quigley struct nfs4_fs_locations *fs_loc, struct nfs4_label *label, 45276926afd1STrond Myklebust const struct nfs_server *server) 45281da177e4SLinus Torvalds { 4529bca79478STrond Myklebust int status; 4530bca79478STrond Myklebust umode_t fmode = 0; 4531ae42c70aSBryan Schumaker uint32_t type; 4532ee7b75fcSTrond Myklebust int32_t err; 45331da177e4SLinus Torvalds 4534f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4535f26c7a78STrond Myklebust if (status < 0) 45361da177e4SLinus Torvalds goto xdr_error; 4537409924e4STrond Myklebust fattr->mode = 0; 4538409924e4STrond Myklebust if (status != 0) { 4539409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4540409924e4STrond Myklebust fattr->valid |= status; 4541409924e4STrond Myklebust } 45421da177e4SLinus Torvalds 4543f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4544f26c7a78STrond Myklebust if (status < 0) 45451da177e4SLinus Torvalds goto xdr_error; 4546409924e4STrond Myklebust fattr->valid |= status; 4547f26c7a78STrond Myklebust 4548f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4549f26c7a78STrond Myklebust if (status < 0) 45501da177e4SLinus Torvalds goto xdr_error; 4551409924e4STrond Myklebust fattr->valid |= status; 4552f26c7a78STrond Myklebust 4553f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4554f26c7a78STrond Myklebust if (status < 0) 45551da177e4SLinus Torvalds goto xdr_error; 4556409924e4STrond Myklebust fattr->valid |= status; 4557f26c7a78STrond Myklebust 4558ee7b75fcSTrond Myklebust err = 0; 4559ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4560ae42c70aSBryan Schumaker if (status < 0) 4561ae42c70aSBryan Schumaker goto xdr_error; 4562ae42c70aSBryan Schumaker 4563ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4564ae42c70aSBryan Schumaker if (status < 0) 4565ae42c70aSBryan Schumaker goto xdr_error; 4566ae42c70aSBryan Schumaker 4567f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4568f26c7a78STrond Myklebust if (status < 0) 45691da177e4SLinus Torvalds goto xdr_error; 4570409924e4STrond Myklebust fattr->valid |= status; 4571f26c7a78STrond Myklebust 45728b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4573f26c7a78STrond Myklebust if (status < 0) 4574683b57b4STrond Myklebust goto xdr_error; 4575409924e4STrond Myklebust fattr->valid |= status; 4576f26c7a78STrond Myklebust 4577f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4578f26c7a78STrond Myklebust if (status < 0) 45791da177e4SLinus Torvalds goto xdr_error; 4580409924e4STrond Myklebust if (status != 0) { 45811da177e4SLinus Torvalds fattr->mode |= fmode; 4582409924e4STrond Myklebust fattr->valid |= status; 4583409924e4STrond Myklebust } 4584f26c7a78STrond Myklebust 4585f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4586f26c7a78STrond Myklebust if (status < 0) 45871da177e4SLinus Torvalds goto xdr_error; 4588409924e4STrond Myklebust fattr->valid |= status; 4589f26c7a78STrond Myklebust 45906926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4591f26c7a78STrond Myklebust if (status < 0) 45921da177e4SLinus Torvalds goto xdr_error; 4593409924e4STrond Myklebust fattr->valid |= status; 4594f26c7a78STrond Myklebust 45956926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4596f26c7a78STrond Myklebust if (status < 0) 45971da177e4SLinus Torvalds goto xdr_error; 4598409924e4STrond Myklebust fattr->valid |= status; 4599f26c7a78STrond Myklebust 4600f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4601f26c7a78STrond Myklebust if (status < 0) 46021da177e4SLinus Torvalds goto xdr_error; 4603409924e4STrond Myklebust fattr->valid |= status; 4604f26c7a78STrond Myklebust 4605f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4606f26c7a78STrond Myklebust if (status < 0) 46071da177e4SLinus Torvalds goto xdr_error; 4608409924e4STrond Myklebust fattr->valid |= status; 4609f26c7a78STrond Myklebust 4610f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4611f26c7a78STrond Myklebust if (status < 0) 46121da177e4SLinus Torvalds goto xdr_error; 4613409924e4STrond Myklebust fattr->valid |= status; 4614f26c7a78STrond Myklebust 4615f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4616f26c7a78STrond Myklebust if (status < 0) 46171da177e4SLinus Torvalds goto xdr_error; 4618409924e4STrond Myklebust fattr->valid |= status; 4619f26c7a78STrond Myklebust 4620f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4621f26c7a78STrond Myklebust if (status < 0) 46221da177e4SLinus Torvalds goto xdr_error; 4623409924e4STrond Myklebust fattr->valid |= status; 4624f26c7a78STrond Myklebust 462528331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4626f26c7a78STrond Myklebust if (status < 0) 462799baf625SManoj Naik goto xdr_error; 4628409924e4STrond Myklebust fattr->valid |= status; 4629f26c7a78STrond Myklebust 463088034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 463188034c3dSAndy Adamson if (status < 0) 463288034c3dSAndy Adamson goto xdr_error; 463388034c3dSAndy Adamson 4634aa9c2669SDavid Quigley if (label) { 4635aa9c2669SDavid Quigley status = decode_attr_security_label(xdr, bitmap, label); 4636aa9c2669SDavid Quigley if (status < 0) 4637aa9c2669SDavid Quigley goto xdr_error; 4638aa9c2669SDavid Quigley fattr->valid |= status; 4639aa9c2669SDavid Quigley } 4640aa9c2669SDavid Quigley 4641ae42c70aSBryan Schumaker xdr_error: 4642ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4643ae42c70aSBryan Schumaker return status; 4644ae42c70aSBryan Schumaker } 4645ae42c70aSBryan Schumaker 4646ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 46478b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 4648aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4649ae42c70aSBryan Schumaker { 4650256e48bbSTrond Myklebust unsigned int savep; 4651ae42c70aSBryan Schumaker uint32_t attrlen, 4652dae100c2SFred Isaman bitmap[3] = {0}; 4653ae42c70aSBryan Schumaker int status; 4654ae42c70aSBryan Schumaker 4655ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4656ae42c70aSBryan Schumaker if (status < 0) 4657ae42c70aSBryan Schumaker goto xdr_error; 4658ae42c70aSBryan Schumaker 4659ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4660ae42c70aSBryan Schumaker if (status < 0) 4661ae42c70aSBryan Schumaker goto xdr_error; 4662ae42c70aSBryan Schumaker 4663ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4664ae42c70aSBryan Schumaker if (status < 0) 4665ae42c70aSBryan Schumaker goto xdr_error; 4666ae42c70aSBryan Schumaker 4667aa9c2669SDavid Quigley status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, 4668aa9c2669SDavid Quigley label, server); 4669ae42c70aSBryan Schumaker if (status < 0) 4670ae42c70aSBryan Schumaker goto xdr_error; 4671ae42c70aSBryan Schumaker 4672f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 46731da177e4SLinus Torvalds xdr_error: 46743110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 46751da177e4SLinus Torvalds return status; 46761da177e4SLinus Torvalds } 46771da177e4SLinus Torvalds 4678aa9c2669SDavid Quigley static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4679aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4680aa9c2669SDavid Quigley { 4681aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server); 4682aa9c2669SDavid Quigley } 4683aa9c2669SDavid Quigley 4684ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 46856926afd1STrond Myklebust const struct nfs_server *server) 4686ae42c70aSBryan Schumaker { 4687aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server); 4688ae42c70aSBryan Schumaker } 46891da177e4SLinus Torvalds 4690504913fbSAndy Adamson /* 4691504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4692504913fbSAndy Adamson * one layout driver per file system. 4693504913fbSAndy Adamson */ 4694504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4695504913fbSAndy Adamson uint32_t *layouttype) 4696504913fbSAndy Adamson { 4697b8a8a0ddSTrond Myklebust __be32 *p; 4698504913fbSAndy Adamson int num; 4699504913fbSAndy Adamson 4700504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4701504913fbSAndy Adamson if (unlikely(!p)) 4702504913fbSAndy Adamson goto out_overflow; 4703504913fbSAndy Adamson num = be32_to_cpup(p); 4704504913fbSAndy Adamson 4705504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4706504913fbSAndy Adamson if (num == 0) { 4707504913fbSAndy Adamson *layouttype = 0; 4708504913fbSAndy Adamson return 0; 4709504913fbSAndy Adamson } 4710504913fbSAndy Adamson if (num > 1) 4711a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4712a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4713504913fbSAndy Adamson 4714504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4715504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4716504913fbSAndy Adamson if (unlikely(!p)) 4717504913fbSAndy Adamson goto out_overflow; 4718504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4719504913fbSAndy Adamson return 0; 4720504913fbSAndy Adamson out_overflow: 4721504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4722504913fbSAndy Adamson return -EIO; 4723504913fbSAndy Adamson } 4724504913fbSAndy Adamson 4725504913fbSAndy Adamson /* 4726504913fbSAndy Adamson * The type of file system exported. 4727504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4728504913fbSAndy Adamson */ 4729504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4730504913fbSAndy Adamson uint32_t *layouttype) 4731504913fbSAndy Adamson { 4732504913fbSAndy Adamson int status = 0; 4733504913fbSAndy Adamson 4734504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4735504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4736504913fbSAndy Adamson return -EIO; 4737504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4738504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4739504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4740504913fbSAndy Adamson } else 4741504913fbSAndy Adamson *layouttype = 0; 4742504913fbSAndy Adamson return status; 4743504913fbSAndy Adamson } 4744504913fbSAndy Adamson 4745dae100c2SFred Isaman /* 4746dae100c2SFred Isaman * The prefered block size for layout directed io 4747dae100c2SFred Isaman */ 4748dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4749dae100c2SFred Isaman uint32_t *res) 4750dae100c2SFred Isaman { 4751dae100c2SFred Isaman __be32 *p; 4752dae100c2SFred Isaman 4753dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4754dae100c2SFred Isaman *res = 0; 4755dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4756dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4757dae100c2SFred Isaman if (unlikely(!p)) { 4758dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4759dae100c2SFred Isaman return -EIO; 4760dae100c2SFred Isaman } 4761dae100c2SFred Isaman *res = be32_to_cpup(p); 4762dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4763dae100c2SFred Isaman } 4764dae100c2SFred Isaman return 0; 4765dae100c2SFred Isaman } 4766dae100c2SFred Isaman 47672a92ee92SPeng Tao /* 47682a92ee92SPeng Tao * The granularity of a CLONE operation. 47692a92ee92SPeng Tao */ 47702a92ee92SPeng Tao static int decode_attr_clone_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 47712a92ee92SPeng Tao uint32_t *res) 47722a92ee92SPeng Tao { 47732a92ee92SPeng Tao __be32 *p; 47742a92ee92SPeng Tao 47752a92ee92SPeng Tao dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 47762a92ee92SPeng Tao *res = 0; 47772a92ee92SPeng Tao if (bitmap[2] & FATTR4_WORD2_CLONE_BLKSIZE) { 47782a92ee92SPeng Tao p = xdr_inline_decode(xdr, 4); 47792a92ee92SPeng Tao if (unlikely(!p)) { 47802a92ee92SPeng Tao print_overflow_msg(__func__, xdr); 47812a92ee92SPeng Tao return -EIO; 47822a92ee92SPeng Tao } 47832a92ee92SPeng Tao *res = be32_to_cpup(p); 47842a92ee92SPeng Tao bitmap[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE; 47852a92ee92SPeng Tao } 47862a92ee92SPeng Tao return 0; 47872a92ee92SPeng Tao } 47882a92ee92SPeng Tao 47891da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 47901da177e4SLinus Torvalds { 4791256e48bbSTrond Myklebust unsigned int savep; 4792dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 47931da177e4SLinus Torvalds int status; 47941da177e4SLinus Torvalds 47951da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 47961da177e4SLinus Torvalds goto xdr_error; 47971da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 47981da177e4SLinus Torvalds goto xdr_error; 47991da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 48001da177e4SLinus Torvalds goto xdr_error; 48011da177e4SLinus Torvalds 48021da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 48031da177e4SLinus Torvalds 48041da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 48051da177e4SLinus Torvalds goto xdr_error; 48061da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 48071da177e4SLinus Torvalds goto xdr_error; 48081da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 48091da177e4SLinus Torvalds goto xdr_error; 48101da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 48111da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 48121da177e4SLinus Torvalds goto xdr_error; 48131da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 481455b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 481555b6e774SRicardo Labiaga if (status != 0) 481655b6e774SRicardo Labiaga goto xdr_error; 4817504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4818504913fbSAndy Adamson if (status != 0) 4819504913fbSAndy Adamson goto xdr_error; 4820dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4821dae100c2SFred Isaman if (status) 4822dae100c2SFred Isaman goto xdr_error; 48232a92ee92SPeng Tao status = decode_attr_clone_blksize(xdr, bitmap, &fsinfo->clone_blksize); 48242a92ee92SPeng Tao if (status) 48252a92ee92SPeng Tao goto xdr_error; 48261da177e4SLinus Torvalds 48271da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 48281da177e4SLinus Torvalds xdr_error: 48293110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 48301da177e4SLinus Torvalds return status; 48311da177e4SLinus Torvalds } 48321da177e4SLinus Torvalds 48331da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 48341da177e4SLinus Torvalds { 48358687b63aSAl Viro __be32 *p; 48361da177e4SLinus Torvalds uint32_t len; 48371da177e4SLinus Torvalds int status; 48381da177e4SLinus Torvalds 48399936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 48409936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 48419936781dSTrond Myklebust 48421da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 48431da177e4SLinus Torvalds if (status) 48441da177e4SLinus Torvalds return status; 48451da177e4SLinus Torvalds 4846c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4847c0eae66eSBenny Halevy if (unlikely(!p)) 4848c0eae66eSBenny Halevy goto out_overflow; 4849cccddf4fSBenny Halevy len = be32_to_cpup(p); 48501da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 48511da177e4SLinus Torvalds return -EIO; 48521da177e4SLinus Torvalds fh->size = len; 4853c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4854c0eae66eSBenny Halevy if (unlikely(!p)) 4855c0eae66eSBenny Halevy goto out_overflow; 485699398d06SBenny Halevy memcpy(fh->data, p, len); 48571da177e4SLinus Torvalds return 0; 4858c0eae66eSBenny Halevy out_overflow: 4859c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4860c0eae66eSBenny Halevy return -EIO; 48611da177e4SLinus Torvalds } 48621da177e4SLinus Torvalds 48631da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 48641da177e4SLinus Torvalds { 48651da177e4SLinus Torvalds int status; 48661da177e4SLinus Torvalds 48671da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 48681da177e4SLinus Torvalds if (status) 48691da177e4SLinus Torvalds return status; 48701da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 48711da177e4SLinus Torvalds } 48721da177e4SLinus Torvalds 48731da177e4SLinus Torvalds /* 48741da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 48751da177e4SLinus Torvalds */ 4876911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 48771da177e4SLinus Torvalds { 4878911d1aafSTrond Myklebust uint64_t offset, length, clientid; 48798687b63aSAl Viro __be32 *p; 4880911d1aafSTrond Myklebust uint32_t namelen, type; 48811da177e4SLinus Torvalds 4882babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4883c0eae66eSBenny Halevy if (unlikely(!p)) 4884c0eae66eSBenny Halevy goto out_overflow; 4885babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 48863ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4887babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4888babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4889911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4890911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4891911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4892911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4893911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4894911d1aafSTrond Myklebust if (type & 1) 4895911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4896911d1aafSTrond Myklebust fl->fl_pid = 0; 4897911d1aafSTrond Myklebust } 4898babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4899babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4900babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4901c0eae66eSBenny Halevy if (likely(p)) 49021da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4903c0eae66eSBenny Halevy out_overflow: 4904c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4905c0eae66eSBenny Halevy return -EIO; 49061da177e4SLinus Torvalds } 49071da177e4SLinus Torvalds 4908911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 49091da177e4SLinus Torvalds { 49101da177e4SLinus Torvalds int status; 49111da177e4SLinus Torvalds 49121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4913c1d51931STrond Myklebust if (status == -EIO) 4914c1d51931STrond Myklebust goto out; 49151da177e4SLinus Torvalds if (status == 0) { 491607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 491707d30434SBenny Halevy if (unlikely(status)) 491807d30434SBenny Halevy goto out; 49191da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4920c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4921c1d51931STrond Myklebust if (res->open_seqid != NULL) 4922c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4923c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4924c1d51931STrond Myklebust out: 49251da177e4SLinus Torvalds return status; 49261da177e4SLinus Torvalds } 49271da177e4SLinus Torvalds 4928911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 49291da177e4SLinus Torvalds { 49301da177e4SLinus Torvalds int status; 49311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 49321da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4933911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 49341da177e4SLinus Torvalds return status; 49351da177e4SLinus Torvalds } 49361da177e4SLinus Torvalds 4937911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 49381da177e4SLinus Torvalds { 49391da177e4SLinus Torvalds int status; 49401da177e4SLinus Torvalds 49411da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4942c1d51931STrond Myklebust if (status != -EIO) 4943c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 494407d30434SBenny Halevy if (status == 0) 494507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49461da177e4SLinus Torvalds return status; 49471da177e4SLinus Torvalds } 49481da177e4SLinus Torvalds 4949d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4950d3c7b7ccSTrond Myklebust { 4951d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4952d3c7b7ccSTrond Myklebust } 4953d3c7b7ccSTrond Myklebust 49541da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 49551da177e4SLinus Torvalds { 49561da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 49571da177e4SLinus Torvalds } 49581da177e4SLinus Torvalds 49591da177e4SLinus Torvalds /* This is too sick! */ 49607d160a6cSTrond Myklebust static int decode_space_limit(struct xdr_stream *xdr, 49617d160a6cSTrond Myklebust unsigned long *pagemod_limit) 49621da177e4SLinus Torvalds { 49638687b63aSAl Viro __be32 *p; 49641da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 49657d160a6cSTrond Myklebust u64 maxsize = 0; 49661da177e4SLinus Torvalds 4967c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4968c0eae66eSBenny Halevy if (unlikely(!p)) 4969c0eae66eSBenny Halevy goto out_overflow; 49706f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 49711da177e4SLinus Torvalds switch (limit_type) { 49727d160a6cSTrond Myklebust case NFS4_LIMIT_SIZE: 49737d160a6cSTrond Myklebust xdr_decode_hyper(p, &maxsize); 49741da177e4SLinus Torvalds break; 49757d160a6cSTrond Myklebust case NFS4_LIMIT_BLOCKS: 49766f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4977cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 49787d160a6cSTrond Myklebust maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 49791da177e4SLinus Torvalds } 49807d160a6cSTrond Myklebust maxsize >>= PAGE_CACHE_SHIFT; 49817d160a6cSTrond Myklebust *pagemod_limit = min_t(u64, maxsize, ULONG_MAX); 49821da177e4SLinus Torvalds return 0; 4983c0eae66eSBenny Halevy out_overflow: 4984c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4985c0eae66eSBenny Halevy return -EIO; 49861da177e4SLinus Torvalds } 49871da177e4SLinus Torvalds 49886ae37339STrond Myklebust static int decode_rw_delegation(struct xdr_stream *xdr, 49896ae37339STrond Myklebust uint32_t delegation_type, 49906ae37339STrond Myklebust struct nfs_openres *res) 49911da177e4SLinus Torvalds { 49928687b63aSAl Viro __be32 *p; 499307d30434SBenny Halevy int status; 49941da177e4SLinus Torvalds 499507d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 499607d30434SBenny Halevy if (unlikely(status)) 499707d30434SBenny Halevy return status; 4998c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4999c0eae66eSBenny Halevy if (unlikely(!p)) 5000c0eae66eSBenny Halevy goto out_overflow; 5001cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 500205d564feSAndy Adamson 50031da177e4SLinus Torvalds switch (delegation_type) { 50041da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 50051da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 50061da177e4SLinus Torvalds break; 50071da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 50081da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 50097d160a6cSTrond Myklebust if (decode_space_limit(xdr, &res->pagemod_limit) < 0) 50101da177e4SLinus Torvalds return -EIO; 50111da177e4SLinus Torvalds } 50127539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 5013c0eae66eSBenny Halevy out_overflow: 5014c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5015c0eae66eSBenny Halevy return -EIO; 50161da177e4SLinus Torvalds } 50171da177e4SLinus Torvalds 50186ae37339STrond Myklebust static int decode_no_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 50196ae37339STrond Myklebust { 50206ae37339STrond Myklebust __be32 *p; 50216ae37339STrond Myklebust uint32_t why_no_delegation; 50226ae37339STrond Myklebust 50236ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 50246ae37339STrond Myklebust if (unlikely(!p)) 50256ae37339STrond Myklebust goto out_overflow; 50266ae37339STrond Myklebust why_no_delegation = be32_to_cpup(p); 50276ae37339STrond Myklebust switch (why_no_delegation) { 50286ae37339STrond Myklebust case WND4_CONTENTION: 50296ae37339STrond Myklebust case WND4_RESOURCE: 50306ae37339STrond Myklebust xdr_inline_decode(xdr, 4); 50316ae37339STrond Myklebust /* Ignore for now */ 50326ae37339STrond Myklebust } 50336ae37339STrond Myklebust return 0; 50346ae37339STrond Myklebust out_overflow: 50356ae37339STrond Myklebust print_overflow_msg(__func__, xdr); 50366ae37339STrond Myklebust return -EIO; 50376ae37339STrond Myklebust } 50386ae37339STrond Myklebust 50396ae37339STrond Myklebust static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 50406ae37339STrond Myklebust { 50416ae37339STrond Myklebust __be32 *p; 50426ae37339STrond Myklebust uint32_t delegation_type; 50436ae37339STrond Myklebust 50446ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 50456ae37339STrond Myklebust if (unlikely(!p)) 50466ae37339STrond Myklebust goto out_overflow; 50476ae37339STrond Myklebust delegation_type = be32_to_cpup(p); 50486ae37339STrond Myklebust res->delegation_type = 0; 50496ae37339STrond Myklebust switch (delegation_type) { 50506ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE: 50516ae37339STrond Myklebust return 0; 50526ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_READ: 50536ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_WRITE: 50546ae37339STrond Myklebust return decode_rw_delegation(xdr, delegation_type, res); 50556ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE_EXT: 50566ae37339STrond Myklebust return decode_no_delegation(xdr, res); 50576ae37339STrond Myklebust } 50586ae37339STrond Myklebust return -EIO; 50596ae37339STrond Myklebust out_overflow: 50606ae37339STrond Myklebust print_overflow_msg(__func__, xdr); 50616ae37339STrond Myklebust return -EIO; 50626ae37339STrond Myklebust } 50636ae37339STrond Myklebust 50641da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 50651da177e4SLinus Torvalds { 50668687b63aSAl Viro __be32 *p; 5067aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 50681da177e4SLinus Torvalds int status; 50691da177e4SLinus Torvalds 5070c7848f69STrond Myklebust if (!__decode_op_hdr(xdr, OP_OPEN, &status)) 5071c7848f69STrond Myklebust return status; 5072c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 5073c7848f69STrond Myklebust if (status) 5074c7848f69STrond Myklebust return status; 507507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 507607d30434SBenny Halevy if (unlikely(status)) 50771da177e4SLinus Torvalds return status; 50781da177e4SLinus Torvalds 50791da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 50801da177e4SLinus Torvalds 5081c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5082c0eae66eSBenny Halevy if (unlikely(!p)) 5083c0eae66eSBenny Halevy goto out_overflow; 50846f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 5085cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 50861da177e4SLinus Torvalds if (bmlen > 10) 50871da177e4SLinus Torvalds goto xdr_error; 50881da177e4SLinus Torvalds 5089c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5090c0eae66eSBenny Halevy if (unlikely(!p)) 5091c0eae66eSBenny Halevy goto out_overflow; 5092aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 5093aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 50946f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 5095aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 5096aa53ed54SJeff Layton res->attrset[i] = 0; 5097aa53ed54SJeff Layton 50981da177e4SLinus Torvalds return decode_delegation(xdr, res); 50991da177e4SLinus Torvalds xdr_error: 51003110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 51011da177e4SLinus Torvalds return -EIO; 5102c0eae66eSBenny Halevy out_overflow: 5103c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5104c0eae66eSBenny Halevy return -EIO; 51051da177e4SLinus Torvalds } 51061da177e4SLinus Torvalds 51071da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 51081da177e4SLinus Torvalds { 51091da177e4SLinus Torvalds int status; 51101da177e4SLinus Torvalds 51111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 5112c1d51931STrond Myklebust if (status != -EIO) 5113c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 511407d30434SBenny Halevy if (!status) 511507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 51161da177e4SLinus Torvalds return status; 51171da177e4SLinus Torvalds } 51181da177e4SLinus Torvalds 51191da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 51201da177e4SLinus Torvalds { 51211da177e4SLinus Torvalds int status; 51221da177e4SLinus Torvalds 51231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 5124c1d51931STrond Myklebust if (status != -EIO) 5125c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 512607d30434SBenny Halevy if (!status) 512707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 51281da177e4SLinus Torvalds return status; 51291da177e4SLinus Torvalds } 51301da177e4SLinus Torvalds 51311da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 51321da177e4SLinus Torvalds { 51331da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 51341da177e4SLinus Torvalds } 51351da177e4SLinus Torvalds 51361da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 51371da177e4SLinus Torvalds { 51381da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 51391da177e4SLinus Torvalds } 51401da177e4SLinus Torvalds 51419137bdf3SAnna Schumaker static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, 51429137bdf3SAnna Schumaker struct nfs_pgio_res *res) 51431da177e4SLinus Torvalds { 51448687b63aSAl Viro __be32 *p; 514564bd577eSTrond Myklebust uint32_t count, eof, recvd; 51461da177e4SLinus Torvalds int status; 51471da177e4SLinus Torvalds 51481da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 51491da177e4SLinus Torvalds if (status) 51501da177e4SLinus Torvalds return status; 5151c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5152c0eae66eSBenny Halevy if (unlikely(!p)) 5153c0eae66eSBenny Halevy goto out_overflow; 51546f723f77SBenny Halevy eof = be32_to_cpup(p++); 5155cccddf4fSBenny Halevy count = be32_to_cpup(p); 515664bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 51571da177e4SLinus Torvalds if (count > recvd) { 5158fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 51591da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 51601da177e4SLinus Torvalds count = recvd; 51611da177e4SLinus Torvalds eof = 0; 51621da177e4SLinus Torvalds } 51631da177e4SLinus Torvalds res->eof = eof; 51641da177e4SLinus Torvalds res->count = count; 51651da177e4SLinus Torvalds return 0; 5166c0eae66eSBenny Halevy out_overflow: 5167c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5168c0eae66eSBenny Halevy return -EIO; 51691da177e4SLinus Torvalds } 51701da177e4SLinus Torvalds 51711da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 51721da177e4SLinus Torvalds { 5173bcecff77SChuck Lever int status; 5174cd93710eSChuck Lever __be32 verf[2]; 51751da177e4SLinus Torvalds 51761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 5177db942bbdSBenny Halevy if (!status) 5178db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 5179db942bbdSBenny Halevy if (unlikely(status)) 51801da177e4SLinus Torvalds return status; 5181cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 518244109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 5183cd93710eSChuck Lever __func__, verf[0], verf[1]); 518464bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 51851da177e4SLinus Torvalds } 51861da177e4SLinus Torvalds 51871da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 51881da177e4SLinus Torvalds { 51891da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 5190bcecff77SChuck Lever u32 len, recvd; 51918687b63aSAl Viro __be32 *p; 51921da177e4SLinus Torvalds int status; 51931da177e4SLinus Torvalds 51941da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 51951da177e4SLinus Torvalds if (status) 51961da177e4SLinus Torvalds return status; 51971da177e4SLinus Torvalds 51981da177e4SLinus Torvalds /* Convert length of symlink */ 5199c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5200c0eae66eSBenny Halevy if (unlikely(!p)) 5201c0eae66eSBenny Halevy goto out_overflow; 5202cccddf4fSBenny Halevy len = be32_to_cpup(p); 52031da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 5204fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 52051da177e4SLinus Torvalds return -ENAMETOOLONG; 52061da177e4SLinus Torvalds } 520764bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 52081da177e4SLinus Torvalds if (recvd < len) { 5209fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 52101da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 52111da177e4SLinus Torvalds return -EIO; 52121da177e4SLinus Torvalds } 52131da177e4SLinus Torvalds /* 52141da177e4SLinus Torvalds * The XDR encode routine has set things up so that 52151da177e4SLinus Torvalds * the link text will be copied directly into the 52161da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 52171da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 52181da177e4SLinus Torvalds * null-termination). 52191da177e4SLinus Torvalds */ 5220b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 52211da177e4SLinus Torvalds return 0; 5222c0eae66eSBenny Halevy out_overflow: 5223c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5224c0eae66eSBenny Halevy return -EIO; 52251da177e4SLinus Torvalds } 52261da177e4SLinus Torvalds 52271da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 52281da177e4SLinus Torvalds { 52291da177e4SLinus Torvalds int status; 52301da177e4SLinus Torvalds 52311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 52321da177e4SLinus Torvalds if (status) 52331da177e4SLinus Torvalds goto out; 52341da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 52351da177e4SLinus Torvalds out: 52361da177e4SLinus Torvalds return status; 52371da177e4SLinus Torvalds } 52381da177e4SLinus Torvalds 52391da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 52401da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 52411da177e4SLinus Torvalds { 52421da177e4SLinus Torvalds int status; 52431da177e4SLinus Torvalds 52441da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 52451da177e4SLinus Torvalds if (status) 52461da177e4SLinus Torvalds goto out; 52471da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 52481da177e4SLinus Torvalds goto out; 52491da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 52501da177e4SLinus Torvalds out: 52511da177e4SLinus Torvalds return status; 52521da177e4SLinus Torvalds } 52531da177e4SLinus Torvalds 52541da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 52551da177e4SLinus Torvalds { 52561da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 52571da177e4SLinus Torvalds } 52581da177e4SLinus Torvalds 525956ae19f3STrond Myklebust static int 526056ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 526156ae19f3STrond Myklebust { 526256ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 526356ae19f3STrond Myklebust } 526456ae19f3STrond Myklebust 5265029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5266bf118a34SAndy Adamson struct nfs_getaclres *res) 5267029d105eSJ. Bruce Fields { 5268256e48bbSTrond Myklebust unsigned int savep; 5269029d105eSJ. Bruce Fields uint32_t attrlen, 5270dae100c2SFred Isaman bitmap[3] = {0}; 5271029d105eSJ. Bruce Fields int status; 5272cff298c7STrond Myklebust unsigned int pg_offset; 5273029d105eSJ. Bruce Fields 5274bf118a34SAndy Adamson res->acl_len = 0; 5275029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5276029d105eSJ. Bruce Fields goto out; 52775a006899SSachin Prabhu 5278519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5279519d3959STrond Myklebust 5280cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5281cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 52825a006899SSachin Prabhu 5283029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5284029d105eSJ. Bruce Fields goto out; 5285029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5286029d105eSJ. Bruce Fields goto out; 5287029d105eSJ. Bruce Fields 5288029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5289029d105eSJ. Bruce Fields return -EIO; 5290029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5291029d105eSJ. Bruce Fields 5292bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5293bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5294bf118a34SAndy Adamson * variable length bitmaps.*/ 5295cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5296519d3959STrond Myklebust res->acl_len = attrlen; 52971f1ea6c2STrond Myklebust 52981f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 52991f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 53001f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 53011f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5302519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5303cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5304029d105eSJ. Bruce Fields } 53058c233cf9SJ. Bruce Fields } else 53068c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5307029d105eSJ. Bruce Fields 5308029d105eSJ. Bruce Fields out: 5309029d105eSJ. Bruce Fields return status; 5310029d105eSJ. Bruce Fields } 5311029d105eSJ. Bruce Fields 53121da177e4SLinus Torvalds static int 53131da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 53141da177e4SLinus Torvalds { 53151da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 53161da177e4SLinus Torvalds } 53171da177e4SLinus Torvalds 53189e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 53191da177e4SLinus Torvalds { 53208687b63aSAl Viro __be32 *p; 53211da177e4SLinus Torvalds uint32_t bmlen; 53221da177e4SLinus Torvalds int status; 53231da177e4SLinus Torvalds 53241da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 53251da177e4SLinus Torvalds if (status) 53261da177e4SLinus Torvalds return status; 5327c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5328c0eae66eSBenny Halevy if (unlikely(!p)) 5329c0eae66eSBenny Halevy goto out_overflow; 5330cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5331c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5332c0eae66eSBenny Halevy if (likely(p)) 53331da177e4SLinus Torvalds return 0; 5334c0eae66eSBenny Halevy out_overflow: 5335c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5336c0eae66eSBenny Halevy return -EIO; 53371da177e4SLinus Torvalds } 53381da177e4SLinus Torvalds 5339bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 53401da177e4SLinus Torvalds { 53418687b63aSAl Viro __be32 *p; 53421da177e4SLinus Torvalds uint32_t opnum; 53431da177e4SLinus Torvalds int32_t nfserr; 53441da177e4SLinus Torvalds 5345c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5346c0eae66eSBenny Halevy if (unlikely(!p)) 5347c0eae66eSBenny Halevy goto out_overflow; 53486f723f77SBenny Halevy opnum = be32_to_cpup(p++); 53491da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5350fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 53511da177e4SLinus Torvalds " %d\n", opnum); 53521da177e4SLinus Torvalds return -EIO; 53531da177e4SLinus Torvalds } 5354cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 53551da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5356c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5357c0eae66eSBenny Halevy if (unlikely(!p)) 5358c0eae66eSBenny Halevy goto out_overflow; 5359bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5360bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 53611da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 53621da177e4SLinus Torvalds uint32_t len; 53631da177e4SLinus Torvalds 53641da177e4SLinus Torvalds /* skip netid string */ 5365c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5366c0eae66eSBenny Halevy if (unlikely(!p)) 5367c0eae66eSBenny Halevy goto out_overflow; 5368cccddf4fSBenny Halevy len = be32_to_cpup(p); 5369c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5370c0eae66eSBenny Halevy if (unlikely(!p)) 5371c0eae66eSBenny Halevy goto out_overflow; 53721da177e4SLinus Torvalds 53731da177e4SLinus Torvalds /* skip uaddr string */ 5374c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5375c0eae66eSBenny Halevy if (unlikely(!p)) 5376c0eae66eSBenny Halevy goto out_overflow; 5377cccddf4fSBenny Halevy len = be32_to_cpup(p); 5378c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5379c0eae66eSBenny Halevy if (unlikely(!p)) 5380c0eae66eSBenny Halevy goto out_overflow; 53811da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 53821da177e4SLinus Torvalds } else 5383856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 53841da177e4SLinus Torvalds 53851da177e4SLinus Torvalds return 0; 5386c0eae66eSBenny Halevy out_overflow: 5387c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5388c0eae66eSBenny Halevy return -EIO; 53891da177e4SLinus Torvalds } 53901da177e4SLinus Torvalds 53911da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 53921da177e4SLinus Torvalds { 53931da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 53941da177e4SLinus Torvalds } 53951da177e4SLinus Torvalds 53969137bdf3SAnna Schumaker static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res) 53971da177e4SLinus Torvalds { 53988687b63aSAl Viro __be32 *p; 53991da177e4SLinus Torvalds int status; 54001da177e4SLinus Torvalds 54011da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 54021da177e4SLinus Torvalds if (status) 54031da177e4SLinus Torvalds return status; 54041da177e4SLinus Torvalds 54052f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5406c0eae66eSBenny Halevy if (unlikely(!p)) 5407c0eae66eSBenny Halevy goto out_overflow; 54086f723f77SBenny Halevy res->count = be32_to_cpup(p++); 54096f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 54102f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5411c0eae66eSBenny Halevy out_overflow: 5412c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5413c0eae66eSBenny Halevy return -EIO; 54141da177e4SLinus Torvalds } 54151da177e4SLinus Torvalds 54161da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 54171da177e4SLinus Torvalds { 54181da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 54191da177e4SLinus Torvalds } 54201da177e4SLinus Torvalds 5421fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5422fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 54235a5ea0d4SBryan Schumaker { 5424fb15b26fSChuck Lever u32 oid_len; 54255a5ea0d4SBryan Schumaker __be32 *p; 54265a5ea0d4SBryan Schumaker 54275a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54285a5ea0d4SBryan Schumaker if (unlikely(!p)) 54295a5ea0d4SBryan Schumaker goto out_overflow; 5430fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5431fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 54325a5ea0d4SBryan Schumaker goto out_err; 54335a5ea0d4SBryan Schumaker 5434fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 54355a5ea0d4SBryan Schumaker if (unlikely(!p)) 54365a5ea0d4SBryan Schumaker goto out_overflow; 5437fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5438fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 54395a5ea0d4SBryan Schumaker 54405a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 54415a5ea0d4SBryan Schumaker if (unlikely(!p)) 54425a5ea0d4SBryan Schumaker goto out_overflow; 5443fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5444fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 54455a5ea0d4SBryan Schumaker 54465a5ea0d4SBryan Schumaker return 0; 54475a5ea0d4SBryan Schumaker 54485a5ea0d4SBryan Schumaker out_overflow: 54495a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 54505a5ea0d4SBryan Schumaker return -EIO; 54515a5ea0d4SBryan Schumaker out_err: 54525a5ea0d4SBryan Schumaker return -EINVAL; 54535a5ea0d4SBryan Schumaker } 54545a5ea0d4SBryan Schumaker 545531e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 54565a5ea0d4SBryan Schumaker { 5457fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5458fb15b26fSChuck Lever unsigned int i, num_flavors; 54595a5ea0d4SBryan Schumaker int status; 54605a5ea0d4SBryan Schumaker __be32 *p; 54615a5ea0d4SBryan Schumaker 54625a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54635a5ea0d4SBryan Schumaker if (unlikely(!p)) 54645a5ea0d4SBryan Schumaker goto out_overflow; 54655a5ea0d4SBryan Schumaker 5466c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5467c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5468c3dfc280SBryan Schumaker 5469c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 54705a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5471c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 54725a5ea0d4SBryan Schumaker break; 54735a5ea0d4SBryan Schumaker 54745a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54755a5ea0d4SBryan Schumaker if (unlikely(!p)) 54765a5ea0d4SBryan Schumaker goto out_overflow; 54775a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 54785a5ea0d4SBryan Schumaker 54795a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5480613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5481613e901eSBryan Schumaker if (status) 5482613e901eSBryan Schumaker goto out; 54835a5ea0d4SBryan Schumaker } 5484c3dfc280SBryan Schumaker res->flavors->num_flavors++; 54855a5ea0d4SBryan Schumaker } 54865a5ea0d4SBryan Schumaker 548731e4dda4SBryan Schumaker status = 0; 5488613e901eSBryan Schumaker out: 5489613e901eSBryan Schumaker return status; 54905a5ea0d4SBryan Schumaker out_overflow: 54915a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 54925a5ea0d4SBryan Schumaker return -EIO; 54935a5ea0d4SBryan Schumaker } 54945a5ea0d4SBryan Schumaker 549531e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 549631e4dda4SBryan Schumaker { 549731e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 549831e4dda4SBryan Schumaker if (status) 549931e4dda4SBryan Schumaker return status; 550031e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 550131e4dda4SBryan Schumaker } 550231e4dda4SBryan Schumaker 550399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 550431e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 550531e4dda4SBryan Schumaker { 550631e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 550731e4dda4SBryan Schumaker if (status) 550831e4dda4SBryan Schumaker return status; 550931e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 551031e4dda4SBryan Schumaker } 551131e4dda4SBryan Schumaker 55122031cd1aSWeston Andros Adamson static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 55132031cd1aSWeston Andros Adamson { 55142031cd1aSWeston Andros Adamson __be32 *p; 55152031cd1aSWeston Andros Adamson uint32_t bitmap_words; 55162031cd1aSWeston Andros Adamson unsigned int i; 55172031cd1aSWeston Andros Adamson 55182031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 55192031cd1aSWeston Andros Adamson bitmap_words = be32_to_cpup(p++); 55202031cd1aSWeston Andros Adamson if (bitmap_words > NFS4_OP_MAP_NUM_WORDS) 55212031cd1aSWeston Andros Adamson return -EIO; 55222031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4 * bitmap_words); 55232031cd1aSWeston Andros Adamson for (i = 0; i < bitmap_words; i++) 55242031cd1aSWeston Andros Adamson op_map->u.words[i] = be32_to_cpup(p++); 55252031cd1aSWeston Andros Adamson 55262031cd1aSWeston Andros Adamson return 0; 55272031cd1aSWeston Andros Adamson } 55282031cd1aSWeston Andros Adamson 552999fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 553099fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 553199fe60d0SBenny Halevy { 553299fe60d0SBenny Halevy __be32 *p; 553399fe60d0SBenny Halevy uint32_t dummy; 55342460ba57SBenny Halevy char *dummy_str; 553599fe60d0SBenny Halevy int status; 55367d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 553799fe60d0SBenny Halevy 553899fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 553999fe60d0SBenny Halevy if (status) 554099fe60d0SBenny Halevy return status; 554199fe60d0SBenny Halevy 5542c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5543c0eae66eSBenny Halevy if (unlikely(!p)) 5544c0eae66eSBenny Halevy goto out_overflow; 554532b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5546c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5547c0eae66eSBenny Halevy if (unlikely(!p)) 5548c0eae66eSBenny Halevy goto out_overflow; 554932b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 555032b01310STrond Myklebust res->flags = be32_to_cpup(p++); 555199fe60d0SBenny Halevy 55522031cd1aSWeston Andros Adamson res->state_protect.how = be32_to_cpup(p); 55532031cd1aSWeston Andros Adamson switch (res->state_protect.how) { 55542031cd1aSWeston Andros Adamson case SP4_NONE: 55552031cd1aSWeston Andros Adamson break; 55562031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 55572031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.enforce); 55582031cd1aSWeston Andros Adamson if (status) 55592031cd1aSWeston Andros Adamson return status; 55602031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.allow); 55612031cd1aSWeston Andros Adamson if (status) 55622031cd1aSWeston Andros Adamson return status; 55632031cd1aSWeston Andros Adamson break; 55642031cd1aSWeston Andros Adamson default: 55652031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 556699fe60d0SBenny Halevy return -EIO; 55672031cd1aSWeston Andros Adamson } 556899fe60d0SBenny Halevy 5569acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5570c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5571c0eae66eSBenny Halevy if (unlikely(!p)) 5572c0eae66eSBenny Halevy goto out_overflow; 5573acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 557499fe60d0SBenny Halevy 5575acdeb69dSChuck Lever /* server_owner4.so_major_id */ 55762460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55772460ba57SBenny Halevy if (unlikely(status)) 55782460ba57SBenny Halevy return status; 557978fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 558078fe0f41SWeston Andros Adamson return -EIO; 5581acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5582acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 558378fe0f41SWeston Andros Adamson 5584acdeb69dSChuck Lever /* server_scope4 */ 5585acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5586acdeb69dSChuck Lever if (unlikely(status)) 5587acdeb69dSChuck Lever return status; 5588acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5589acdeb69dSChuck Lever return -EIO; 559078fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 559178fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 559278fe0f41SWeston Andros Adamson 55937d2ed9acSWeston Andros Adamson /* Implementation Id */ 55947d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 55957d2ed9acSWeston Andros Adamson if (unlikely(!p)) 55967d2ed9acSWeston Andros Adamson goto out_overflow; 55977d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 55987d2ed9acSWeston Andros Adamson 55997d2ed9acSWeston Andros Adamson if (impl_id_count) { 56007d2ed9acSWeston Andros Adamson /* nii_domain */ 56012460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 56022460ba57SBenny Halevy if (unlikely(status)) 56032460ba57SBenny Halevy return status; 56047d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 56057d2ed9acSWeston Andros Adamson return -EIO; 56067d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 560799fe60d0SBenny Halevy 56087d2ed9acSWeston Andros Adamson /* nii_name */ 56097d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 56107d2ed9acSWeston Andros Adamson if (unlikely(status)) 56117d2ed9acSWeston Andros Adamson return status; 56127d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 56137d2ed9acSWeston Andros Adamson return -EIO; 56147d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 56157d2ed9acSWeston Andros Adamson 56167d2ed9acSWeston Andros Adamson /* nii_date */ 56177d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 56187d2ed9acSWeston Andros Adamson if (unlikely(!p)) 56197d2ed9acSWeston Andros Adamson goto out_overflow; 56207d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 56217d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 56227d2ed9acSWeston Andros Adamson 56237d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 56247d2ed9acSWeston Andros Adamson } 562599fe60d0SBenny Halevy return 0; 5626c0eae66eSBenny Halevy out_overflow: 5627c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5628c0eae66eSBenny Halevy return -EIO; 562999fe60d0SBenny Halevy } 5630fc931582SAndy Adamson 5631fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5632fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5633fc931582SAndy Adamson { 5634fc931582SAndy Adamson __be32 *p; 5635c9c30dd5SBenny Halevy u32 nr_attrs, val; 5636fc931582SAndy Adamson 5637c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5638c0eae66eSBenny Halevy if (unlikely(!p)) 5639c0eae66eSBenny Halevy goto out_overflow; 5640c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5641c9c30dd5SBenny Halevy if (val) 5642c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 56436f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 56446f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 56456f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 56466f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 56476f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5648cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5649fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5650a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5651a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5652fc931582SAndy Adamson return -EINVAL; 5653fc931582SAndy Adamson } 5654c0eae66eSBenny Halevy if (nr_attrs == 1) { 5655c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5656c0eae66eSBenny Halevy if (unlikely(!p)) 5657c0eae66eSBenny Halevy goto out_overflow; 5658c0eae66eSBenny Halevy } 5659fc931582SAndy Adamson return 0; 5660c0eae66eSBenny Halevy out_overflow: 5661c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5662c0eae66eSBenny Halevy return -EIO; 5663fc931582SAndy Adamson } 5664fc931582SAndy Adamson 5665e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5666e78291e4SBenny Halevy { 5667e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5668fc931582SAndy Adamson } 5669fc931582SAndy Adamson 56707c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 56717c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 56727c44f1aeSWeston Andros Adamson { 56737c44f1aeSWeston Andros Adamson __be32 *p; 56747c44f1aeSWeston Andros Adamson int status; 56757c44f1aeSWeston Andros Adamson 56767c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 56777c44f1aeSWeston Andros Adamson if (!status) 567871a097c6STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 56797c44f1aeSWeston Andros Adamson if (unlikely(status)) 56807c44f1aeSWeston Andros Adamson return status; 56817c44f1aeSWeston Andros Adamson 56827c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 56837c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 56847c44f1aeSWeston Andros Adamson if (unlikely(!p)) 56857c44f1aeSWeston Andros Adamson goto out_overflow; 56867c44f1aeSWeston Andros Adamson 56877c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 56887c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 56897c44f1aeSWeston Andros Adamson return -EIO; 56907c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 56917c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 56927c44f1aeSWeston Andros Adamson else 56937c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 56947c44f1aeSWeston Andros Adamson 56957c44f1aeSWeston Andros Adamson return 0; 56967c44f1aeSWeston Andros Adamson out_overflow: 56977c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 56987c44f1aeSWeston Andros Adamson return -EIO; 56997c44f1aeSWeston Andros Adamson } 57007c44f1aeSWeston Andros Adamson 5701fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5702fc931582SAndy Adamson struct nfs41_create_session_res *res) 5703fc931582SAndy Adamson { 5704fc931582SAndy Adamson __be32 *p; 5705fc931582SAndy Adamson int status; 5706fc931582SAndy Adamson 5707fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5708e78291e4SBenny Halevy if (!status) 570979969dd1STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 5710e78291e4SBenny Halevy if (unlikely(status)) 5711fc931582SAndy Adamson return status; 5712fc931582SAndy Adamson 5713fc931582SAndy Adamson /* seqid, flags */ 5714c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5715c0eae66eSBenny Halevy if (unlikely(!p)) 5716c0eae66eSBenny Halevy goto out_overflow; 571779969dd1STrond Myklebust res->seqid = be32_to_cpup(p++); 571879969dd1STrond Myklebust res->flags = be32_to_cpup(p); 5719fc931582SAndy Adamson 5720fc931582SAndy Adamson /* Channel attributes */ 572179969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->fc_attrs); 5722fc931582SAndy Adamson if (!status) 572379969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->bc_attrs); 5724fc931582SAndy Adamson return status; 5725c0eae66eSBenny Halevy out_overflow: 5726c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5727c0eae66eSBenny Halevy return -EIO; 5728fc931582SAndy Adamson } 57290f3e66c6SAndy Adamson 57300f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 57310f3e66c6SAndy Adamson { 57320f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 57330f3e66c6SAndy Adamson } 573418019753SRicardo Labiaga 573566245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 573666245539STrond Myklebust { 573766245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 573866245539STrond Myklebust } 573966245539STrond Myklebust 574018019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 574118019753SRicardo Labiaga { 574218019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 574318019753SRicardo Labiaga } 574499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 574599fe60d0SBenny Halevy 57469b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 57479b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 57489b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 57499b7b9fccSAndy Adamson { 57509b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5751e3725ec0STrond Myklebust struct nfs4_session *session; 5752fc01cea9SAndy Adamson struct nfs4_sessionid id; 5753fc01cea9SAndy Adamson u32 dummy; 5754fc01cea9SAndy Adamson int status; 5755fc01cea9SAndy Adamson __be32 *p; 5756fc01cea9SAndy Adamson 5757e3725ec0STrond Myklebust if (res->sr_slot == NULL) 57589b7b9fccSAndy Adamson return 0; 57593bd2384aSChuck Lever if (!res->sr_slot->table->session) 57603bd2384aSChuck Lever return 0; 57619b7b9fccSAndy Adamson 5762fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5763e78291e4SBenny Halevy if (!status) 5764e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5765e78291e4SBenny Halevy if (unlikely(status)) 5766fc01cea9SAndy Adamson goto out_err; 57679b7b9fccSAndy Adamson 5768fc01cea9SAndy Adamson /* 5769fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5770fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5771fc01cea9SAndy Adamson */ 5772fdcb4577STrond Myklebust status = -EREMOTEIO; 5773e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5774fc01cea9SAndy Adamson 5775e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5776fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5777fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5778fc01cea9SAndy Adamson goto out_err; 5779fc01cea9SAndy Adamson } 5780e78291e4SBenny Halevy 5781c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5782c0eae66eSBenny Halevy if (unlikely(!p)) 5783c0eae66eSBenny Halevy goto out_overflow; 5784e78291e4SBenny Halevy 5785fc01cea9SAndy Adamson /* seqid */ 57866f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5787dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5788fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5789fc01cea9SAndy Adamson goto out_err; 5790fc01cea9SAndy Adamson } 5791fc01cea9SAndy Adamson /* slot id */ 57926f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5793df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5794fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5795fc01cea9SAndy Adamson goto out_err; 5796fc01cea9SAndy Adamson } 5797da0507b7STrond Myklebust /* highest slot id */ 5798da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5799464ee9f9STrond Myklebust /* target highest slot id */ 5800464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 58010629e370SAlexandros Batsakis /* result flags */ 58020629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5803fc01cea9SAndy Adamson status = 0; 5804fc01cea9SAndy Adamson out_err: 5805fc01cea9SAndy Adamson res->sr_status = status; 5806fc01cea9SAndy Adamson return status; 5807c0eae66eSBenny Halevy out_overflow: 5808c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5809c0eae66eSBenny Halevy status = -EIO; 5810c0eae66eSBenny Halevy goto out_err; 5811fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 58129b7b9fccSAndy Adamson return 0; 5813fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 58149b7b9fccSAndy Adamson } 58159b7b9fccSAndy Adamson 5816b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 5817b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 58184e590803STrond Myklebust struct nfs4_getdeviceinfo_res *res) 5819b1f69b75SAndy Adamson { 58204e590803STrond Myklebust struct pnfs_device *pdev = res->pdev; 5821b1f69b75SAndy Adamson __be32 *p; 5822b1f69b75SAndy Adamson uint32_t len, type; 5823b1f69b75SAndy Adamson int status; 5824b1f69b75SAndy Adamson 5825b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5826b1f69b75SAndy Adamson if (status) { 5827b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5828b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5829b1f69b75SAndy Adamson if (unlikely(!p)) 5830b1f69b75SAndy Adamson goto out_overflow; 5831b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5832b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5833b1f69b75SAndy Adamson __func__, pdev->mincount); 5834b1f69b75SAndy Adamson } 5835b1f69b75SAndy Adamson return status; 5836b1f69b75SAndy Adamson } 5837b1f69b75SAndy Adamson 5838b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5839b1f69b75SAndy Adamson if (unlikely(!p)) 5840b1f69b75SAndy Adamson goto out_overflow; 5841b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5842b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5843b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5844b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5845b1f69b75SAndy Adamson return -EINVAL; 5846b1f69b75SAndy Adamson } 5847b1f69b75SAndy Adamson /* 5848b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5849b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5850b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5851b1f69b75SAndy Adamson */ 5852b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 585313fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 585413fe4ba1STrond Myklebust goto out_overflow; 5855b1f69b75SAndy Adamson 5856b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5857b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5858b1f69b75SAndy Adamson if (unlikely(!p)) 5859b1f69b75SAndy Adamson goto out_overflow; 5860b1f69b75SAndy Adamson len = be32_to_cpup(p); 5861b1f69b75SAndy Adamson if (len) { 5862ead00597SChuck Lever uint32_t i; 5863b1f69b75SAndy Adamson 5864b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5865b1f69b75SAndy Adamson if (unlikely(!p)) 5866b1f69b75SAndy Adamson goto out_overflow; 586784c9dee3SChristoph Hellwig 58684e590803STrond Myklebust res->notification = be32_to_cpup(p++); 586984c9dee3SChristoph Hellwig for (i = 1; i < len; i++) { 587084c9dee3SChristoph Hellwig if (be32_to_cpup(p++)) { 587184c9dee3SChristoph Hellwig dprintk("%s: unsupported notification\n", 5872b1f69b75SAndy Adamson __func__); 5873b1f69b75SAndy Adamson return -EIO; 5874b1f69b75SAndy Adamson } 5875b1f69b75SAndy Adamson } 5876b1f69b75SAndy Adamson } 5877b1f69b75SAndy Adamson return 0; 5878b1f69b75SAndy Adamson out_overflow: 5879b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5880b1f69b75SAndy Adamson return -EIO; 5881b1f69b75SAndy Adamson } 5882b1f69b75SAndy Adamson 5883b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5884b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5885b1f69b75SAndy Adamson { 5886b1f69b75SAndy Adamson __be32 *p; 5887b1f69b75SAndy Adamson int status; 5888b1f69b75SAndy Adamson u32 layout_count; 588964bd577eSTrond Myklebust u32 recvd; 5890b1f69b75SAndy Adamson 5891b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5892b1f69b75SAndy Adamson if (status) 5893b1f69b75SAndy Adamson return status; 5894ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5895b1f69b75SAndy Adamson if (unlikely(!p)) 5896b1f69b75SAndy Adamson goto out_overflow; 5897ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5898ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5899ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5900ea9d23f5STrond Myklebust if (unlikely(!p)) 5901ea9d23f5STrond Myklebust goto out_overflow; 5902b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5903b1f69b75SAndy Adamson if (!layout_count) { 5904b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5905b1f69b75SAndy Adamson __func__); 5906b1f69b75SAndy Adamson return -EINVAL; 5907b1f69b75SAndy Adamson } 5908b1f69b75SAndy Adamson 590935124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5910b1f69b75SAndy Adamson if (unlikely(!p)) 5911b1f69b75SAndy Adamson goto out_overflow; 5912b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5913b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5914b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5915b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 591635124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5917b1f69b75SAndy Adamson 5918b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5919b1f69b75SAndy Adamson __func__, 5920b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5921b1f69b75SAndy Adamson (unsigned long)res->range.length, 5922b1f69b75SAndy Adamson res->range.iomode, 5923b1f69b75SAndy Adamson res->type, 592435124a09SWeston Andros Adamson res->layoutp->len); 5925b1f69b75SAndy Adamson 592664bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 592735124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 592835124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 592935124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 593035124a09SWeston Andros Adamson res->layoutp->len, recvd); 593135124a09SWeston Andros Adamson return -EINVAL; 593235124a09SWeston Andros Adamson } 593335124a09SWeston Andros Adamson 5934b1f69b75SAndy Adamson if (layout_count > 1) { 5935b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5936b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5937b1f69b75SAndy Adamson * the client may see a response that is less than the 5938b1f69b75SAndy Adamson * minimum it requested. 5939b1f69b75SAndy Adamson */ 5940b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5941b1f69b75SAndy Adamson __func__, layout_count); 5942b1f69b75SAndy Adamson } 5943b1f69b75SAndy Adamson 5944b1f69b75SAndy Adamson return 0; 5945b1f69b75SAndy Adamson out_overflow: 5946b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5947b1f69b75SAndy Adamson return -EIO; 5948b1f69b75SAndy Adamson } 5949863a3c6cSAndy Adamson 5950cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5951cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5952cbe82603SBenny Halevy { 5953cbe82603SBenny Halevy __be32 *p; 5954cbe82603SBenny Halevy int status; 5955cbe82603SBenny Halevy 5956cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5957cbe82603SBenny Halevy if (status) 5958cbe82603SBenny Halevy return status; 5959cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5960cbe82603SBenny Halevy if (unlikely(!p)) 5961cbe82603SBenny Halevy goto out_overflow; 5962cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5963cbe82603SBenny Halevy if (res->lrs_present) 5964cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5965cbe82603SBenny Halevy return status; 5966cbe82603SBenny Halevy out_overflow: 5967cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5968cbe82603SBenny Halevy return -EIO; 5969cbe82603SBenny Halevy } 5970cbe82603SBenny Halevy 5971863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5972863a3c6cSAndy Adamson struct rpc_rqst *req, 5973863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5974863a3c6cSAndy Adamson { 5975863a3c6cSAndy Adamson __be32 *p; 5976863a3c6cSAndy Adamson __u32 sizechanged; 5977863a3c6cSAndy Adamson int status; 5978863a3c6cSAndy Adamson 5979863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5980db29c089SAndy Adamson res->status = status; 5981863a3c6cSAndy Adamson if (status) 5982863a3c6cSAndy Adamson return status; 5983863a3c6cSAndy Adamson 5984863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5985863a3c6cSAndy Adamson if (unlikely(!p)) 5986863a3c6cSAndy Adamson goto out_overflow; 5987863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5988863a3c6cSAndy Adamson 5989863a3c6cSAndy Adamson if (sizechanged) { 5990863a3c6cSAndy Adamson /* throw away new size */ 5991863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5992863a3c6cSAndy Adamson if (unlikely(!p)) 5993863a3c6cSAndy Adamson goto out_overflow; 5994863a3c6cSAndy Adamson } 5995863a3c6cSAndy Adamson return 0; 5996863a3c6cSAndy Adamson out_overflow: 5997863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5998863a3c6cSAndy Adamson return -EIO; 5999863a3c6cSAndy Adamson } 60007d974794SBryan Schumaker 60017d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 60027d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 60037d974794SBryan Schumaker { 60047d974794SBryan Schumaker __be32 *p; 60057d974794SBryan Schumaker int status; 60067d974794SBryan Schumaker int num_res; 60077d974794SBryan Schumaker 60087d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 60097d974794SBryan Schumaker if (status) 60107d974794SBryan Schumaker return status; 60117d974794SBryan Schumaker 60127d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60137d974794SBryan Schumaker if (unlikely(!p)) 60147d974794SBryan Schumaker goto out_overflow; 60157d974794SBryan Schumaker num_res = be32_to_cpup(p++); 60167d974794SBryan Schumaker if (num_res != 1) 60177d974794SBryan Schumaker goto out; 60187d974794SBryan Schumaker 60197d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60207d974794SBryan Schumaker if (unlikely(!p)) 60217d974794SBryan Schumaker goto out_overflow; 60227d974794SBryan Schumaker res->status = be32_to_cpup(p++); 60231cab0652SBryan Schumaker 60241cab0652SBryan Schumaker return status; 60257d974794SBryan Schumaker out_overflow: 60267d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 60277d974794SBryan Schumaker out: 60287d974794SBryan Schumaker return -EIO; 60297d974794SBryan Schumaker } 60309aeda35fSBryan Schumaker 60319aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 60329aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 60339aeda35fSBryan Schumaker { 60349f79fb48SAndy Adamson res->status = decode_op_hdr(xdr, OP_FREE_STATEID); 60359aeda35fSBryan Schumaker return res->status; 60369aeda35fSBryan Schumaker } 6037b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 6038b1f69b75SAndy Adamson 60391da177e4SLinus Torvalds /* 604049c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 604149c2559eSBenny Halevy */ 604249c2559eSBenny Halevy 604349c2559eSBenny Halevy /* 60441da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 60451da177e4SLinus Torvalds */ 6046bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 6047bf269551SChuck Lever struct xdr_stream *xdr, 6048bf269551SChuck Lever struct nfs_closeres *res) 60491da177e4SLinus Torvalds { 60501da177e4SLinus Torvalds struct compound_hdr hdr; 60511da177e4SLinus Torvalds int status; 60521da177e4SLinus Torvalds 6053bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60541da177e4SLinus Torvalds if (status) 60551da177e4SLinus Torvalds goto out; 6056bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60579b7b9fccSAndy Adamson if (status) 60589b7b9fccSAndy Adamson goto out; 6059bf269551SChuck Lever status = decode_putfh(xdr); 60601da177e4SLinus Torvalds if (status) 60611da177e4SLinus Torvalds goto out; 6062bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 6063516a6af6STrond Myklebust if (status != 0) 6064516a6af6STrond Myklebust goto out; 60656926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60661da177e4SLinus Torvalds out: 60671da177e4SLinus Torvalds return status; 60681da177e4SLinus Torvalds } 60691da177e4SLinus Torvalds 60701da177e4SLinus Torvalds /* 60711da177e4SLinus Torvalds * Decode ACCESS response 60721da177e4SLinus Torvalds */ 6073bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6074bf269551SChuck Lever struct nfs4_accessres *res) 60751da177e4SLinus Torvalds { 60761da177e4SLinus Torvalds struct compound_hdr hdr; 60771da177e4SLinus Torvalds int status; 60781da177e4SLinus Torvalds 6079bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60809b7b9fccSAndy Adamson if (status) 60819b7b9fccSAndy Adamson goto out; 6082bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60839b7b9fccSAndy Adamson if (status) 60841da177e4SLinus Torvalds goto out; 6085bf269551SChuck Lever status = decode_putfh(xdr); 608676b32999STrond Myklebust if (status != 0) 608776b32999STrond Myklebust goto out; 60886168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 608976b32999STrond Myklebust if (status != 0) 609076b32999STrond Myklebust goto out; 60916926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60921da177e4SLinus Torvalds out: 60931da177e4SLinus Torvalds return status; 60941da177e4SLinus Torvalds } 60951da177e4SLinus Torvalds 60961da177e4SLinus Torvalds /* 60971da177e4SLinus Torvalds * Decode LOOKUP response 60981da177e4SLinus Torvalds */ 6099bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6100bf269551SChuck Lever struct nfs4_lookup_res *res) 61011da177e4SLinus Torvalds { 61021da177e4SLinus Torvalds struct compound_hdr hdr; 61031da177e4SLinus Torvalds int status; 61041da177e4SLinus Torvalds 6105bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61069b7b9fccSAndy Adamson if (status) 61079b7b9fccSAndy Adamson goto out; 6108bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61099b7b9fccSAndy Adamson if (status) 61101da177e4SLinus Torvalds goto out; 6111bf269551SChuck Lever status = decode_putfh(xdr); 6112bf269551SChuck Lever if (status) 61131da177e4SLinus Torvalds goto out; 6114bf269551SChuck Lever status = decode_lookup(xdr); 6115bf269551SChuck Lever if (status) 61161da177e4SLinus Torvalds goto out; 6117bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6118bf269551SChuck Lever if (status) 61191da177e4SLinus Torvalds goto out; 6120aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 61211da177e4SLinus Torvalds out: 61221da177e4SLinus Torvalds return status; 61231da177e4SLinus Torvalds } 61241da177e4SLinus Torvalds 61251da177e4SLinus Torvalds /* 61261da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 61271da177e4SLinus Torvalds */ 6128bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 6129bf269551SChuck Lever struct xdr_stream *xdr, 6130bf269551SChuck Lever struct nfs4_lookup_res *res) 61311da177e4SLinus Torvalds { 61321da177e4SLinus Torvalds struct compound_hdr hdr; 61331da177e4SLinus Torvalds int status; 61341da177e4SLinus Torvalds 6135bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61369b7b9fccSAndy Adamson if (status) 61379b7b9fccSAndy Adamson goto out; 6138bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61399b7b9fccSAndy Adamson if (status) 61401da177e4SLinus Torvalds goto out; 6141bf269551SChuck Lever status = decode_putrootfh(xdr); 6142bf269551SChuck Lever if (status) 61431da177e4SLinus Torvalds goto out; 6144bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6145bf269551SChuck Lever if (status == 0) 6146aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, 6147aa9c2669SDavid Quigley res->label, res->server); 61481da177e4SLinus Torvalds out: 61491da177e4SLinus Torvalds return status; 61501da177e4SLinus Torvalds } 61511da177e4SLinus Torvalds 61521da177e4SLinus Torvalds /* 61531da177e4SLinus Torvalds * Decode REMOVE response 61541da177e4SLinus Torvalds */ 6155bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6156bf269551SChuck Lever struct nfs_removeres *res) 61571da177e4SLinus Torvalds { 61581da177e4SLinus Torvalds struct compound_hdr hdr; 61591da177e4SLinus Torvalds int status; 61601da177e4SLinus Torvalds 6161bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61629b7b9fccSAndy Adamson if (status) 61639b7b9fccSAndy Adamson goto out; 6164bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61659b7b9fccSAndy Adamson if (status) 61661da177e4SLinus Torvalds goto out; 6167bf269551SChuck Lever status = decode_putfh(xdr); 6168bf269551SChuck Lever if (status) 616916e42959STrond Myklebust goto out; 6170bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 61711da177e4SLinus Torvalds out: 61721da177e4SLinus Torvalds return status; 61731da177e4SLinus Torvalds } 61741da177e4SLinus Torvalds 61751da177e4SLinus Torvalds /* 61761da177e4SLinus Torvalds * Decode RENAME response 61771da177e4SLinus Torvalds */ 6178bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6179bf269551SChuck Lever struct nfs_renameres *res) 61801da177e4SLinus Torvalds { 61811da177e4SLinus Torvalds struct compound_hdr hdr; 61821da177e4SLinus Torvalds int status; 61831da177e4SLinus Torvalds 6184bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61859b7b9fccSAndy Adamson if (status) 61869b7b9fccSAndy Adamson goto out; 6187bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61889b7b9fccSAndy Adamson if (status) 61891da177e4SLinus Torvalds goto out; 6190bf269551SChuck Lever status = decode_putfh(xdr); 6191bf269551SChuck Lever if (status) 61921da177e4SLinus Torvalds goto out; 6193bf269551SChuck Lever status = decode_savefh(xdr); 6194bf269551SChuck Lever if (status) 61951da177e4SLinus Torvalds goto out; 6196bf269551SChuck Lever status = decode_putfh(xdr); 6197bf269551SChuck Lever if (status) 61981da177e4SLinus Torvalds goto out; 6199bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 62001da177e4SLinus Torvalds out: 62011da177e4SLinus Torvalds return status; 62021da177e4SLinus Torvalds } 62031da177e4SLinus Torvalds 62041da177e4SLinus Torvalds /* 62051da177e4SLinus Torvalds * Decode LINK response 62061da177e4SLinus Torvalds */ 6207bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6208bf269551SChuck Lever struct nfs4_link_res *res) 62091da177e4SLinus Torvalds { 62101da177e4SLinus Torvalds struct compound_hdr hdr; 62111da177e4SLinus Torvalds int status; 62121da177e4SLinus Torvalds 6213bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62149b7b9fccSAndy Adamson if (status) 62159b7b9fccSAndy Adamson goto out; 6216bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62179b7b9fccSAndy Adamson if (status) 62181da177e4SLinus Torvalds goto out; 6219bf269551SChuck Lever status = decode_putfh(xdr); 6220bf269551SChuck Lever if (status) 62211da177e4SLinus Torvalds goto out; 6222bf269551SChuck Lever status = decode_savefh(xdr); 6223bf269551SChuck Lever if (status) 62241da177e4SLinus Torvalds goto out; 6225bf269551SChuck Lever status = decode_putfh(xdr); 6226bf269551SChuck Lever if (status) 62271da177e4SLinus Torvalds goto out; 6228bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6229bf269551SChuck Lever if (status) 623091ba2eeeSTrond Myklebust goto out; 623191ba2eeeSTrond Myklebust /* 623291ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 623391ba2eeeSTrond Myklebust * filehandle. 623491ba2eeeSTrond Myklebust */ 6235bf269551SChuck Lever status = decode_restorefh(xdr); 6236bf269551SChuck Lever if (status) 623791ba2eeeSTrond Myklebust goto out; 6238aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62391da177e4SLinus Torvalds out: 62401da177e4SLinus Torvalds return status; 62411da177e4SLinus Torvalds } 62421da177e4SLinus Torvalds 62431da177e4SLinus Torvalds /* 62441da177e4SLinus Torvalds * Decode CREATE response 62451da177e4SLinus Torvalds */ 6246bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6247bf269551SChuck Lever struct nfs4_create_res *res) 62481da177e4SLinus Torvalds { 62491da177e4SLinus Torvalds struct compound_hdr hdr; 62501da177e4SLinus Torvalds int status; 62511da177e4SLinus Torvalds 6252bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62539b7b9fccSAndy Adamson if (status) 62549b7b9fccSAndy Adamson goto out; 6255bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62569b7b9fccSAndy Adamson if (status) 62571da177e4SLinus Torvalds goto out; 6258bf269551SChuck Lever status = decode_putfh(xdr); 6259bf269551SChuck Lever if (status) 62601da177e4SLinus Torvalds goto out; 6261bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6262bf269551SChuck Lever if (status) 62631da177e4SLinus Torvalds goto out; 6264bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6265bf269551SChuck Lever if (status) 62661da177e4SLinus Torvalds goto out; 6267aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62681da177e4SLinus Torvalds out: 62691da177e4SLinus Torvalds return status; 62701da177e4SLinus Torvalds } 62711da177e4SLinus Torvalds 62721da177e4SLinus Torvalds /* 62731da177e4SLinus Torvalds * Decode SYMLINK response 62741da177e4SLinus Torvalds */ 6275bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6276bf269551SChuck Lever struct nfs4_create_res *res) 62771da177e4SLinus Torvalds { 6278bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 62791da177e4SLinus Torvalds } 62801da177e4SLinus Torvalds 62811da177e4SLinus Torvalds /* 62821da177e4SLinus Torvalds * Decode GETATTR response 62831da177e4SLinus Torvalds */ 6284bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6285bf269551SChuck Lever struct nfs4_getattr_res *res) 62861da177e4SLinus Torvalds { 62871da177e4SLinus Torvalds struct compound_hdr hdr; 62881da177e4SLinus Torvalds int status; 62891da177e4SLinus Torvalds 6290bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62911da177e4SLinus Torvalds if (status) 62921da177e4SLinus Torvalds goto out; 6293bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62949b7b9fccSAndy Adamson if (status) 62959b7b9fccSAndy Adamson goto out; 6296bf269551SChuck Lever status = decode_putfh(xdr); 62971da177e4SLinus Torvalds if (status) 62981da177e4SLinus Torvalds goto out; 6299aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 63001da177e4SLinus Torvalds out: 63011da177e4SLinus Torvalds return status; 63021da177e4SLinus Torvalds } 63031da177e4SLinus Torvalds 630423ec6965SJ. Bruce Fields /* 630523ec6965SJ. Bruce Fields * Encode an SETACL request 630623ec6965SJ. Bruce Fields */ 63079f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 63089f06c719SChuck Lever struct nfs_setaclargs *args) 630923ec6965SJ. Bruce Fields { 631023ec6965SJ. Bruce Fields struct compound_hdr hdr = { 631166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 631223ec6965SJ. Bruce Fields }; 631323ec6965SJ. Bruce Fields 63149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 63159f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 63169f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 63179f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6318d017931cSAndy Adamson encode_nops(&hdr); 631923ec6965SJ. Bruce Fields } 632005d564feSAndy Adamson 632123ec6965SJ. Bruce Fields /* 632223ec6965SJ. Bruce Fields * Decode SETACL response 632323ec6965SJ. Bruce Fields */ 632423ec6965SJ. Bruce Fields static int 6325bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 632673c403a9SBenny Halevy struct nfs_setaclres *res) 632723ec6965SJ. Bruce Fields { 632823ec6965SJ. Bruce Fields struct compound_hdr hdr; 632923ec6965SJ. Bruce Fields int status; 633023ec6965SJ. Bruce Fields 6331bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 633223ec6965SJ. Bruce Fields if (status) 633323ec6965SJ. Bruce Fields goto out; 6334bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63359b7b9fccSAndy Adamson if (status) 63369b7b9fccSAndy Adamson goto out; 6337bf269551SChuck Lever status = decode_putfh(xdr); 633823ec6965SJ. Bruce Fields if (status) 633923ec6965SJ. Bruce Fields goto out; 6340bf269551SChuck Lever status = decode_setattr(xdr); 634123ec6965SJ. Bruce Fields out: 634223ec6965SJ. Bruce Fields return status; 634323ec6965SJ. Bruce Fields } 63441da177e4SLinus Torvalds 63451da177e4SLinus Torvalds /* 6346029d105eSJ. Bruce Fields * Decode GETACL response 6347029d105eSJ. Bruce Fields */ 6348029d105eSJ. Bruce Fields static int 6349bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6350663c79b3SBenny Halevy struct nfs_getaclres *res) 6351029d105eSJ. Bruce Fields { 6352029d105eSJ. Bruce Fields struct compound_hdr hdr; 6353029d105eSJ. Bruce Fields int status; 6354029d105eSJ. Bruce Fields 6355331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6356331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6357331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6358331818f1STrond Myklebust } 6359bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6360029d105eSJ. Bruce Fields if (status) 6361029d105eSJ. Bruce Fields goto out; 6362bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63639b7b9fccSAndy Adamson if (status) 63649b7b9fccSAndy Adamson goto out; 6365bf269551SChuck Lever status = decode_putfh(xdr); 6366029d105eSJ. Bruce Fields if (status) 6367029d105eSJ. Bruce Fields goto out; 6368bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6369029d105eSJ. Bruce Fields 6370029d105eSJ. Bruce Fields out: 6371029d105eSJ. Bruce Fields return status; 6372029d105eSJ. Bruce Fields } 6373029d105eSJ. Bruce Fields 6374029d105eSJ. Bruce Fields /* 63751da177e4SLinus Torvalds * Decode CLOSE response 63761da177e4SLinus Torvalds */ 6377bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6378bf269551SChuck Lever struct nfs_closeres *res) 63791da177e4SLinus Torvalds { 63801da177e4SLinus Torvalds struct compound_hdr hdr; 63811da177e4SLinus Torvalds int status; 63821da177e4SLinus Torvalds 6383bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63841da177e4SLinus Torvalds if (status) 63851da177e4SLinus Torvalds goto out; 6386bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63879b7b9fccSAndy Adamson if (status) 63889b7b9fccSAndy Adamson goto out; 6389bf269551SChuck Lever status = decode_putfh(xdr); 63901da177e4SLinus Torvalds if (status) 63911da177e4SLinus Torvalds goto out; 6392bf269551SChuck Lever status = decode_close(xdr, res); 6393516a6af6STrond Myklebust if (status != 0) 6394516a6af6STrond Myklebust goto out; 6395516a6af6STrond Myklebust /* 6396516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6397516a6af6STrond Myklebust * in which case the getattr call will fail with 6398516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6399516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6400516a6af6STrond Myklebust */ 64016926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64021da177e4SLinus Torvalds out: 64031da177e4SLinus Torvalds return status; 64041da177e4SLinus Torvalds } 64051da177e4SLinus Torvalds 64061da177e4SLinus Torvalds /* 64071da177e4SLinus Torvalds * Decode OPEN response 64081da177e4SLinus Torvalds */ 6409bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6410bf269551SChuck Lever struct nfs_openres *res) 64111da177e4SLinus Torvalds { 64121da177e4SLinus Torvalds struct compound_hdr hdr; 64131da177e4SLinus Torvalds int status; 64141da177e4SLinus Torvalds 6415bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64161da177e4SLinus Torvalds if (status) 64171da177e4SLinus Torvalds goto out; 6418bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64199b7b9fccSAndy Adamson if (status) 64209b7b9fccSAndy Adamson goto out; 6421bf269551SChuck Lever status = decode_putfh(xdr); 64221da177e4SLinus Torvalds if (status) 64231da177e4SLinus Torvalds goto out; 6424bf269551SChuck Lever status = decode_open(xdr, res); 64251da177e4SLinus Torvalds if (status) 64261da177e4SLinus Torvalds goto out; 642701913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 642801913b49SWeston Andros Adamson if (status) 64291da177e4SLinus Torvalds goto out; 6430ae2bb032SWeston Andros Adamson if (res->access_request) 64316168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 6432aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server); 64331da177e4SLinus Torvalds out: 64341da177e4SLinus Torvalds return status; 64351da177e4SLinus Torvalds } 64361da177e4SLinus Torvalds 64371da177e4SLinus Torvalds /* 64381da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 64391da177e4SLinus Torvalds */ 6440bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6441bf269551SChuck Lever struct xdr_stream *xdr, 6442bf269551SChuck Lever struct nfs_open_confirmres *res) 64431da177e4SLinus Torvalds { 64441da177e4SLinus Torvalds struct compound_hdr hdr; 64451da177e4SLinus Torvalds int status; 64461da177e4SLinus Torvalds 6447bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64481da177e4SLinus Torvalds if (status) 64491da177e4SLinus Torvalds goto out; 6450bf269551SChuck Lever status = decode_putfh(xdr); 64511da177e4SLinus Torvalds if (status) 64521da177e4SLinus Torvalds goto out; 6453bf269551SChuck Lever status = decode_open_confirm(xdr, res); 64541da177e4SLinus Torvalds out: 64551da177e4SLinus Torvalds return status; 64561da177e4SLinus Torvalds } 64571da177e4SLinus Torvalds 64581da177e4SLinus Torvalds /* 64591da177e4SLinus Torvalds * Decode OPEN response 64601da177e4SLinus Torvalds */ 6461bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6462bf269551SChuck Lever struct xdr_stream *xdr, 6463bf269551SChuck Lever struct nfs_openres *res) 64641da177e4SLinus Torvalds { 64651da177e4SLinus Torvalds struct compound_hdr hdr; 64661da177e4SLinus Torvalds int status; 64671da177e4SLinus Torvalds 6468bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64691da177e4SLinus Torvalds if (status) 64701da177e4SLinus Torvalds goto out; 6471bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64729b7b9fccSAndy Adamson if (status) 64739b7b9fccSAndy Adamson goto out; 6474bf269551SChuck Lever status = decode_putfh(xdr); 64751da177e4SLinus Torvalds if (status) 64761da177e4SLinus Torvalds goto out; 6477bf269551SChuck Lever status = decode_open(xdr, res); 6478864472e9STrond Myklebust if (status) 6479864472e9STrond Myklebust goto out; 6480ae2bb032SWeston Andros Adamson if (res->access_request) 64816168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 64826926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 64831da177e4SLinus Torvalds out: 64841da177e4SLinus Torvalds return status; 64851da177e4SLinus Torvalds } 64861da177e4SLinus Torvalds 64871da177e4SLinus Torvalds /* 64881da177e4SLinus Torvalds * Decode SETATTR response 64891da177e4SLinus Torvalds */ 6490bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6491bf269551SChuck Lever struct xdr_stream *xdr, 6492bf269551SChuck Lever struct nfs_setattrres *res) 64931da177e4SLinus Torvalds { 64941da177e4SLinus Torvalds struct compound_hdr hdr; 64951da177e4SLinus Torvalds int status; 64961da177e4SLinus Torvalds 6497bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64981da177e4SLinus Torvalds if (status) 64991da177e4SLinus Torvalds goto out; 6500bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65019b7b9fccSAndy Adamson if (status) 65029b7b9fccSAndy Adamson goto out; 6503bf269551SChuck Lever status = decode_putfh(xdr); 65041da177e4SLinus Torvalds if (status) 65051da177e4SLinus Torvalds goto out; 6506bf269551SChuck Lever status = decode_setattr(xdr); 65071da177e4SLinus Torvalds if (status) 65081da177e4SLinus Torvalds goto out; 6509aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 65101da177e4SLinus Torvalds out: 65111da177e4SLinus Torvalds return status; 65121da177e4SLinus Torvalds } 65131da177e4SLinus Torvalds 65141da177e4SLinus Torvalds /* 65151da177e4SLinus Torvalds * Decode LOCK response 65161da177e4SLinus Torvalds */ 6517bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6518bf269551SChuck Lever struct nfs_lock_res *res) 65191da177e4SLinus Torvalds { 65201da177e4SLinus Torvalds struct compound_hdr hdr; 65211da177e4SLinus Torvalds int status; 65221da177e4SLinus Torvalds 6523bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65241da177e4SLinus Torvalds if (status) 65251da177e4SLinus Torvalds goto out; 6526bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65279b7b9fccSAndy Adamson if (status) 65289b7b9fccSAndy Adamson goto out; 6529bf269551SChuck Lever status = decode_putfh(xdr); 65301da177e4SLinus Torvalds if (status) 65311da177e4SLinus Torvalds goto out; 6532bf269551SChuck Lever status = decode_lock(xdr, res); 65331da177e4SLinus Torvalds out: 65341da177e4SLinus Torvalds return status; 65351da177e4SLinus Torvalds } 65361da177e4SLinus Torvalds 65371da177e4SLinus Torvalds /* 65381da177e4SLinus Torvalds * Decode LOCKT response 65391da177e4SLinus Torvalds */ 6540bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6541bf269551SChuck Lever struct nfs_lockt_res *res) 65421da177e4SLinus Torvalds { 65431da177e4SLinus Torvalds struct compound_hdr hdr; 65441da177e4SLinus Torvalds int status; 65451da177e4SLinus Torvalds 6546bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65471da177e4SLinus Torvalds if (status) 65481da177e4SLinus Torvalds goto out; 6549bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65509b7b9fccSAndy Adamson if (status) 65519b7b9fccSAndy Adamson goto out; 6552bf269551SChuck Lever status = decode_putfh(xdr); 65531da177e4SLinus Torvalds if (status) 65541da177e4SLinus Torvalds goto out; 6555bf269551SChuck Lever status = decode_lockt(xdr, res); 65561da177e4SLinus Torvalds out: 65571da177e4SLinus Torvalds return status; 65581da177e4SLinus Torvalds } 65591da177e4SLinus Torvalds 65601da177e4SLinus Torvalds /* 65611da177e4SLinus Torvalds * Decode LOCKU response 65621da177e4SLinus Torvalds */ 6563bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6564bf269551SChuck Lever struct nfs_locku_res *res) 65651da177e4SLinus Torvalds { 65661da177e4SLinus Torvalds struct compound_hdr hdr; 65671da177e4SLinus Torvalds int status; 65681da177e4SLinus Torvalds 6569bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65701da177e4SLinus Torvalds if (status) 65711da177e4SLinus Torvalds goto out; 6572bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65739b7b9fccSAndy Adamson if (status) 65749b7b9fccSAndy Adamson goto out; 6575bf269551SChuck Lever status = decode_putfh(xdr); 65761da177e4SLinus Torvalds if (status) 65771da177e4SLinus Torvalds goto out; 6578bf269551SChuck Lever status = decode_locku(xdr, res); 65791da177e4SLinus Torvalds out: 65801da177e4SLinus Torvalds return status; 65811da177e4SLinus Torvalds } 65821da177e4SLinus Torvalds 6583bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6584bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6585d3c7b7ccSTrond Myklebust { 6586d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6587d3c7b7ccSTrond Myklebust int status; 6588d3c7b7ccSTrond Myklebust 6589bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6590d3c7b7ccSTrond Myklebust if (!status) 6591bf269551SChuck Lever status = decode_release_lockowner(xdr); 6592d3c7b7ccSTrond Myklebust return status; 6593d3c7b7ccSTrond Myklebust } 6594d3c7b7ccSTrond Myklebust 65951da177e4SLinus Torvalds /* 65961da177e4SLinus Torvalds * Decode READLINK response 65971da177e4SLinus Torvalds */ 6598bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6599bf269551SChuck Lever struct xdr_stream *xdr, 6600f50c7000SBenny Halevy struct nfs4_readlink_res *res) 66011da177e4SLinus Torvalds { 66021da177e4SLinus Torvalds struct compound_hdr hdr; 66031da177e4SLinus Torvalds int status; 66041da177e4SLinus Torvalds 6605bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66061da177e4SLinus Torvalds if (status) 66071da177e4SLinus Torvalds goto out; 6608bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66099b7b9fccSAndy Adamson if (status) 66109b7b9fccSAndy Adamson goto out; 6611bf269551SChuck Lever status = decode_putfh(xdr); 66121da177e4SLinus Torvalds if (status) 66131da177e4SLinus Torvalds goto out; 6614bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 66151da177e4SLinus Torvalds out: 66161da177e4SLinus Torvalds return status; 66171da177e4SLinus Torvalds } 66181da177e4SLinus Torvalds 66191da177e4SLinus Torvalds /* 66201da177e4SLinus Torvalds * Decode READDIR response 66211da177e4SLinus Torvalds */ 6622bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6623bf269551SChuck Lever struct nfs4_readdir_res *res) 66241da177e4SLinus Torvalds { 66251da177e4SLinus Torvalds struct compound_hdr hdr; 66261da177e4SLinus Torvalds int status; 66271da177e4SLinus Torvalds 6628bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66291da177e4SLinus Torvalds if (status) 66301da177e4SLinus Torvalds goto out; 6631bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66329b7b9fccSAndy Adamson if (status) 66339b7b9fccSAndy Adamson goto out; 6634bf269551SChuck Lever status = decode_putfh(xdr); 66351da177e4SLinus Torvalds if (status) 66361da177e4SLinus Torvalds goto out; 6637bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 66381da177e4SLinus Torvalds out: 66391da177e4SLinus Torvalds return status; 66401da177e4SLinus Torvalds } 66411da177e4SLinus Torvalds 66421da177e4SLinus Torvalds /* 66431da177e4SLinus Torvalds * Decode Read response 66441da177e4SLinus Torvalds */ 6645bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 66469137bdf3SAnna Schumaker struct nfs_pgio_res *res) 66471da177e4SLinus Torvalds { 66481da177e4SLinus Torvalds struct compound_hdr hdr; 66491da177e4SLinus Torvalds int status; 66501da177e4SLinus Torvalds 6651bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6652aabff4ddSPeng Tao res->op_status = hdr.status; 66531da177e4SLinus Torvalds if (status) 66541da177e4SLinus Torvalds goto out; 6655bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66569b7b9fccSAndy Adamson if (status) 66579b7b9fccSAndy Adamson goto out; 6658bf269551SChuck Lever status = decode_putfh(xdr); 66591da177e4SLinus Torvalds if (status) 66601da177e4SLinus Torvalds goto out; 6661bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 66621da177e4SLinus Torvalds if (!status) 66631da177e4SLinus Torvalds status = res->count; 66641da177e4SLinus Torvalds out: 66651da177e4SLinus Torvalds return status; 66661da177e4SLinus Torvalds } 66671da177e4SLinus Torvalds 66681da177e4SLinus Torvalds /* 66691da177e4SLinus Torvalds * Decode WRITE response 66701da177e4SLinus Torvalds */ 6671bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 66729137bdf3SAnna Schumaker struct nfs_pgio_res *res) 66731da177e4SLinus Torvalds { 66741da177e4SLinus Torvalds struct compound_hdr hdr; 66751da177e4SLinus Torvalds int status; 66761da177e4SLinus Torvalds 6677bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6678aabff4ddSPeng Tao res->op_status = hdr.status; 66791da177e4SLinus Torvalds if (status) 66801da177e4SLinus Torvalds goto out; 6681bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66829b7b9fccSAndy Adamson if (status) 66839b7b9fccSAndy Adamson goto out; 6684bf269551SChuck Lever status = decode_putfh(xdr); 66851da177e4SLinus Torvalds if (status) 66861da177e4SLinus Torvalds goto out; 6687bf269551SChuck Lever status = decode_write(xdr, res); 66884f9838c7STrond Myklebust if (status) 66894f9838c7STrond Myklebust goto out; 66907ffd1064SFred Isaman if (res->fattr) 66916926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 66921da177e4SLinus Torvalds if (!status) 66931da177e4SLinus Torvalds status = res->count; 66941da177e4SLinus Torvalds out: 66951da177e4SLinus Torvalds return status; 66961da177e4SLinus Torvalds } 66971da177e4SLinus Torvalds 66981da177e4SLinus Torvalds /* 66991da177e4SLinus Torvalds * Decode COMMIT response 67001da177e4SLinus Torvalds */ 6701bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 67020b7c0153SFred Isaman struct nfs_commitres *res) 67031da177e4SLinus Torvalds { 67041da177e4SLinus Torvalds struct compound_hdr hdr; 67051da177e4SLinus Torvalds int status; 67061da177e4SLinus Torvalds 6707bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6708aabff4ddSPeng Tao res->op_status = hdr.status; 67091da177e4SLinus Torvalds if (status) 67101da177e4SLinus Torvalds goto out; 6711bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67129b7b9fccSAndy Adamson if (status) 67139b7b9fccSAndy Adamson goto out; 6714bf269551SChuck Lever status = decode_putfh(xdr); 67151da177e4SLinus Torvalds if (status) 67161da177e4SLinus Torvalds goto out; 6717bf269551SChuck Lever status = decode_commit(xdr, res); 67181da177e4SLinus Torvalds out: 67191da177e4SLinus Torvalds return status; 67201da177e4SLinus Torvalds } 67211da177e4SLinus Torvalds 67221da177e4SLinus Torvalds /* 67238b173218SRicardo Labiaga * Decode FSINFO response 67241da177e4SLinus Torvalds */ 6725bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 67263dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 67271da177e4SLinus Torvalds { 67281da177e4SLinus Torvalds struct compound_hdr hdr; 67291da177e4SLinus Torvalds int status; 67301da177e4SLinus Torvalds 6731bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67321da177e4SLinus Torvalds if (!status) 6733bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67349b7b9fccSAndy Adamson if (!status) 6735bf269551SChuck Lever status = decode_putfh(xdr); 67361da177e4SLinus Torvalds if (!status) 6737bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 67381da177e4SLinus Torvalds return status; 67391da177e4SLinus Torvalds } 67401da177e4SLinus Torvalds 67411da177e4SLinus Torvalds /* 67428b173218SRicardo Labiaga * Decode PATHCONF response 67431da177e4SLinus Torvalds */ 6744bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6745d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 67461da177e4SLinus Torvalds { 67471da177e4SLinus Torvalds struct compound_hdr hdr; 67481da177e4SLinus Torvalds int status; 67491da177e4SLinus Torvalds 6750bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67511da177e4SLinus Torvalds if (!status) 6752bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67539b7b9fccSAndy Adamson if (!status) 6754bf269551SChuck Lever status = decode_putfh(xdr); 67551da177e4SLinus Torvalds if (!status) 6756bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 67571da177e4SLinus Torvalds return status; 67581da177e4SLinus Torvalds } 67591da177e4SLinus Torvalds 67601da177e4SLinus Torvalds /* 67618b173218SRicardo Labiaga * Decode STATFS response 67621da177e4SLinus Torvalds */ 6763bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 676424ad148aSBenny Halevy struct nfs4_statfs_res *res) 67651da177e4SLinus Torvalds { 67661da177e4SLinus Torvalds struct compound_hdr hdr; 67671da177e4SLinus Torvalds int status; 67681da177e4SLinus Torvalds 6769bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67701da177e4SLinus Torvalds if (!status) 6771bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67729b7b9fccSAndy Adamson if (!status) 6773bf269551SChuck Lever status = decode_putfh(xdr); 67741da177e4SLinus Torvalds if (!status) 6775bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 67761da177e4SLinus Torvalds return status; 67771da177e4SLinus Torvalds } 67781da177e4SLinus Torvalds 67791da177e4SLinus Torvalds /* 67808b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 67811da177e4SLinus Torvalds */ 6782bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6783bf269551SChuck Lever struct xdr_stream *xdr, 6784bf269551SChuck Lever struct nfs4_server_caps_res *res) 67851da177e4SLinus Torvalds { 67861da177e4SLinus Torvalds struct compound_hdr hdr; 67871da177e4SLinus Torvalds int status; 67881da177e4SLinus Torvalds 6789bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67909b7b9fccSAndy Adamson if (status) 67919b7b9fccSAndy Adamson goto out; 6792bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67939b7b9fccSAndy Adamson if (status) 67941da177e4SLinus Torvalds goto out; 6795bf269551SChuck Lever status = decode_putfh(xdr); 6796bf269551SChuck Lever if (status) 67971da177e4SLinus Torvalds goto out; 6798bf269551SChuck Lever status = decode_server_caps(xdr, res); 67991da177e4SLinus Torvalds out: 68001da177e4SLinus Torvalds return status; 68011da177e4SLinus Torvalds } 68021da177e4SLinus Torvalds 68031da177e4SLinus Torvalds /* 68041da177e4SLinus Torvalds * Decode RENEW response 68051da177e4SLinus Torvalds */ 6806bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6807bf269551SChuck Lever void *__unused) 68081da177e4SLinus Torvalds { 68091da177e4SLinus Torvalds struct compound_hdr hdr; 68101da177e4SLinus Torvalds int status; 68111da177e4SLinus Torvalds 6812bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68131da177e4SLinus Torvalds if (!status) 6814bf269551SChuck Lever status = decode_renew(xdr); 68151da177e4SLinus Torvalds return status; 68161da177e4SLinus Torvalds } 68171da177e4SLinus Torvalds 68181da177e4SLinus Torvalds /* 68198b173218SRicardo Labiaga * Decode SETCLIENTID response 68201da177e4SLinus Torvalds */ 6821bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6822bf269551SChuck Lever struct xdr_stream *xdr, 6823bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 68241da177e4SLinus Torvalds { 68251da177e4SLinus Torvalds struct compound_hdr hdr; 68261da177e4SLinus Torvalds int status; 68271da177e4SLinus Torvalds 6828bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68291da177e4SLinus Torvalds if (!status) 6830bf269551SChuck Lever status = decode_setclientid(xdr, res); 68311da177e4SLinus Torvalds return status; 68321da177e4SLinus Torvalds } 68331da177e4SLinus Torvalds 68341da177e4SLinus Torvalds /* 68358b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 68361da177e4SLinus Torvalds */ 6837bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 683883ca7f5aSChuck Lever struct xdr_stream *xdr) 68391da177e4SLinus Torvalds { 68401da177e4SLinus Torvalds struct compound_hdr hdr; 68411da177e4SLinus Torvalds int status; 68421da177e4SLinus Torvalds 6843bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68441da177e4SLinus Torvalds if (!status) 6845bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 68461da177e4SLinus Torvalds return status; 68471da177e4SLinus Torvalds } 68481da177e4SLinus Torvalds 68491da177e4SLinus Torvalds /* 68508b173218SRicardo Labiaga * Decode DELEGRETURN response 68511da177e4SLinus Torvalds */ 6852bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6853bf269551SChuck Lever struct xdr_stream *xdr, 6854bf269551SChuck Lever struct nfs4_delegreturnres *res) 68551da177e4SLinus Torvalds { 68561da177e4SLinus Torvalds struct compound_hdr hdr; 68571da177e4SLinus Torvalds int status; 68581da177e4SLinus Torvalds 6859bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68609b7b9fccSAndy Adamson if (status) 68619b7b9fccSAndy Adamson goto out; 6862bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 68639b7b9fccSAndy Adamson if (status) 6864fa178f29STrond Myklebust goto out; 6865bf269551SChuck Lever status = decode_putfh(xdr); 6866fa178f29STrond Myklebust if (status != 0) 6867fa178f29STrond Myklebust goto out; 6868e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6869556ae3bbSJeff Layton if (status != 0) 6870556ae3bbSJeff Layton goto out; 6871e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6872fa178f29STrond Myklebust out: 68731da177e4SLinus Torvalds return status; 68741da177e4SLinus Torvalds } 68751da177e4SLinus Torvalds 6876683b57b4STrond Myklebust /* 68778b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6878683b57b4STrond Myklebust */ 6879bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6880bf269551SChuck Lever struct xdr_stream *xdr, 688122958463SBenny Halevy struct nfs4_fs_locations_res *res) 6882683b57b4STrond Myklebust { 6883683b57b4STrond Myklebust struct compound_hdr hdr; 6884683b57b4STrond Myklebust int status; 6885683b57b4STrond Myklebust 6886bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68879b7b9fccSAndy Adamson if (status) 68889b7b9fccSAndy Adamson goto out; 6889bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68909b7b9fccSAndy Adamson if (status) 6891683b57b4STrond Myklebust goto out; 6892bf269551SChuck Lever status = decode_putfh(xdr); 6893bf269551SChuck Lever if (status) 6894683b57b4STrond Myklebust goto out; 6895b03d735bSChuck Lever if (res->migration) { 6896b03d735bSChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6897b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6898b03d735bSChuck Lever &res->fs_locations->fattr, 6899b03d735bSChuck Lever NULL, res->fs_locations, 6900b03d735bSChuck Lever NULL, res->fs_locations->server); 6901b03d735bSChuck Lever if (status) 6902b03d735bSChuck Lever goto out; 6903b03d735bSChuck Lever if (res->renew) 6904b03d735bSChuck Lever status = decode_renew(xdr); 6905b03d735bSChuck Lever } else { 6906bf269551SChuck Lever status = decode_lookup(xdr); 6907bf269551SChuck Lever if (status) 6908683b57b4STrond Myklebust goto out; 6909bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6910b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6911b03d735bSChuck Lever &res->fs_locations->fattr, 69128b7e3f49STrond Myklebust NULL, res->fs_locations, 6913aa9c2669SDavid Quigley NULL, res->fs_locations->server); 6914b03d735bSChuck Lever } 6915683b57b4STrond Myklebust out: 6916683b57b4STrond Myklebust return status; 6917683b57b4STrond Myklebust } 6918683b57b4STrond Myklebust 69195a5ea0d4SBryan Schumaker /* 69205a5ea0d4SBryan Schumaker * Decode SECINFO response 69215a5ea0d4SBryan Schumaker */ 69225a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 69235a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 69245a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 69255a5ea0d4SBryan Schumaker { 69265a5ea0d4SBryan Schumaker struct compound_hdr hdr; 69275a5ea0d4SBryan Schumaker int status; 69285a5ea0d4SBryan Schumaker 69295a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69305a5ea0d4SBryan Schumaker if (status) 69315a5ea0d4SBryan Schumaker goto out; 69325a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69335a5ea0d4SBryan Schumaker if (status) 69345a5ea0d4SBryan Schumaker goto out; 69355a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 69365a5ea0d4SBryan Schumaker if (status) 69375a5ea0d4SBryan Schumaker goto out; 69385a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 69395a5ea0d4SBryan Schumaker out: 69405a5ea0d4SBryan Schumaker return status; 69415a5ea0d4SBryan Schumaker } 69425a5ea0d4SBryan Schumaker 694344c99933SChuck Lever /* 694444c99933SChuck Lever * Decode FSID_PRESENT response 694544c99933SChuck Lever */ 694644c99933SChuck Lever static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp, 694744c99933SChuck Lever struct xdr_stream *xdr, 694844c99933SChuck Lever struct nfs4_fsid_present_res *res) 694944c99933SChuck Lever { 695044c99933SChuck Lever struct compound_hdr hdr; 695144c99933SChuck Lever int status; 695244c99933SChuck Lever 695344c99933SChuck Lever status = decode_compound_hdr(xdr, &hdr); 695444c99933SChuck Lever if (status) 695544c99933SChuck Lever goto out; 695644c99933SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 695744c99933SChuck Lever if (status) 695844c99933SChuck Lever goto out; 695944c99933SChuck Lever status = decode_putfh(xdr); 696044c99933SChuck Lever if (status) 696144c99933SChuck Lever goto out; 696244c99933SChuck Lever status = decode_getfh(xdr, res->fh); 696344c99933SChuck Lever if (status) 696444c99933SChuck Lever goto out; 696544c99933SChuck Lever if (res->renew) 696644c99933SChuck Lever status = decode_renew(xdr); 696744c99933SChuck Lever out: 696844c99933SChuck Lever return status; 696944c99933SChuck Lever } 697044c99933SChuck Lever 697199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 697299fe60d0SBenny Halevy /* 69737c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 69747c44f1aeSWeston Andros Adamson */ 69757c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 69767c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 69777c44f1aeSWeston Andros Adamson void *res) 69787c44f1aeSWeston Andros Adamson { 69797c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 69807c44f1aeSWeston Andros Adamson int status; 69817c44f1aeSWeston Andros Adamson 69827c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 69837c44f1aeSWeston Andros Adamson if (!status) 69847c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 69857c44f1aeSWeston Andros Adamson return status; 69867c44f1aeSWeston Andros Adamson } 69877c44f1aeSWeston Andros Adamson 69887c44f1aeSWeston Andros Adamson /* 69898b173218SRicardo Labiaga * Decode EXCHANGE_ID response 699099fe60d0SBenny Halevy */ 6991bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6992bf269551SChuck Lever struct xdr_stream *xdr, 699399fe60d0SBenny Halevy void *res) 699499fe60d0SBenny Halevy { 699599fe60d0SBenny Halevy struct compound_hdr hdr; 699699fe60d0SBenny Halevy int status; 699799fe60d0SBenny Halevy 6998bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 699999fe60d0SBenny Halevy if (!status) 7000bf269551SChuck Lever status = decode_exchange_id(xdr, res); 700199fe60d0SBenny Halevy return status; 700299fe60d0SBenny Halevy } 70032050f0ccSAndy Adamson 70042050f0ccSAndy Adamson /* 70058b173218SRicardo Labiaga * Decode CREATE_SESSION response 7006fc931582SAndy Adamson */ 7007bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 7008bf269551SChuck Lever struct xdr_stream *xdr, 7009fc931582SAndy Adamson struct nfs41_create_session_res *res) 7010fc931582SAndy Adamson { 7011fc931582SAndy Adamson struct compound_hdr hdr; 7012fc931582SAndy Adamson int status; 7013fc931582SAndy Adamson 7014bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7015fc931582SAndy Adamson if (!status) 7016bf269551SChuck Lever status = decode_create_session(xdr, res); 7017fc931582SAndy Adamson return status; 7018fc931582SAndy Adamson } 7019fc931582SAndy Adamson 7020fc931582SAndy Adamson /* 70218b173218SRicardo Labiaga * Decode DESTROY_SESSION response 70220f3e66c6SAndy Adamson */ 7023bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 7024bf269551SChuck Lever struct xdr_stream *xdr, 7025bf269551SChuck Lever void *res) 70260f3e66c6SAndy Adamson { 70270f3e66c6SAndy Adamson struct compound_hdr hdr; 70280f3e66c6SAndy Adamson int status; 70290f3e66c6SAndy Adamson 7030bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70310f3e66c6SAndy Adamson if (!status) 7032bf269551SChuck Lever status = decode_destroy_session(xdr, res); 70330f3e66c6SAndy Adamson return status; 70340f3e66c6SAndy Adamson } 70350f3e66c6SAndy Adamson 70360f3e66c6SAndy Adamson /* 703766245539STrond Myklebust * Decode DESTROY_CLIENTID response 703866245539STrond Myklebust */ 703966245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 704066245539STrond Myklebust struct xdr_stream *xdr, 704166245539STrond Myklebust void *res) 704266245539STrond Myklebust { 704366245539STrond Myklebust struct compound_hdr hdr; 704466245539STrond Myklebust int status; 704566245539STrond Myklebust 704666245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 704766245539STrond Myklebust if (!status) 704866245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 704966245539STrond Myklebust return status; 705066245539STrond Myklebust } 705166245539STrond Myklebust 705266245539STrond Myklebust /* 70538b173218SRicardo Labiaga * Decode SEQUENCE response 7054fc01cea9SAndy Adamson */ 7055bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 7056bf269551SChuck Lever struct xdr_stream *xdr, 7057fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 7058fc01cea9SAndy Adamson { 7059fc01cea9SAndy Adamson struct compound_hdr hdr; 7060fc01cea9SAndy Adamson int status; 7061fc01cea9SAndy Adamson 7062bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7063fc01cea9SAndy Adamson if (!status) 7064bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 7065fc01cea9SAndy Adamson return status; 7066fc01cea9SAndy Adamson } 7067fc01cea9SAndy Adamson 7068fc01cea9SAndy Adamson /* 70698b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 70702050f0ccSAndy Adamson */ 7071bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 7072bf269551SChuck Lever struct xdr_stream *xdr, 70732050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 70742050f0ccSAndy Adamson { 70752050f0ccSAndy Adamson struct compound_hdr hdr; 70762050f0ccSAndy Adamson int status; 70772050f0ccSAndy Adamson 7078bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70792050f0ccSAndy Adamson if (!status) 7080bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 70812050f0ccSAndy Adamson if (!status) 7082bf269551SChuck Lever status = decode_putrootfh(xdr); 70832050f0ccSAndy Adamson if (!status) 7084bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 70852050f0ccSAndy Adamson return status; 70862050f0ccSAndy Adamson } 708718019753SRicardo Labiaga 708818019753SRicardo Labiaga /* 708918019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 709018019753SRicardo Labiaga */ 7091bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 7092bf269551SChuck Lever struct xdr_stream *xdr, 709318019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 709418019753SRicardo Labiaga { 709518019753SRicardo Labiaga struct compound_hdr hdr; 709618019753SRicardo Labiaga int status; 709718019753SRicardo Labiaga 7098bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 709918019753SRicardo Labiaga if (!status) 7100bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 710118019753SRicardo Labiaga if (!status) 71028ee2b78aSHimangi Saraogi status = decode_reclaim_complete(xdr, NULL); 710318019753SRicardo Labiaga return status; 710418019753SRicardo Labiaga } 7105b1f69b75SAndy Adamson 7106b1f69b75SAndy Adamson /* 7107b1f69b75SAndy Adamson * Decode GETDEVINFO response 7108b1f69b75SAndy Adamson */ 7109bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 7110bf269551SChuck Lever struct xdr_stream *xdr, 7111b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 7112b1f69b75SAndy Adamson { 7113b1f69b75SAndy Adamson struct compound_hdr hdr; 7114b1f69b75SAndy Adamson int status; 7115b1f69b75SAndy Adamson 7116bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7117b1f69b75SAndy Adamson if (status != 0) 7118b1f69b75SAndy Adamson goto out; 7119bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7120b1f69b75SAndy Adamson if (status != 0) 7121b1f69b75SAndy Adamson goto out; 71224e590803STrond Myklebust status = decode_getdeviceinfo(xdr, res); 7123b1f69b75SAndy Adamson out: 7124b1f69b75SAndy Adamson return status; 7125b1f69b75SAndy Adamson } 7126b1f69b75SAndy Adamson 7127b1f69b75SAndy Adamson /* 7128b1f69b75SAndy Adamson * Decode LAYOUTGET response 7129b1f69b75SAndy Adamson */ 7130bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 7131bf269551SChuck Lever struct xdr_stream *xdr, 7132b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 7133b1f69b75SAndy Adamson { 7134b1f69b75SAndy Adamson struct compound_hdr hdr; 7135b1f69b75SAndy Adamson int status; 7136b1f69b75SAndy Adamson 7137bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7138b1f69b75SAndy Adamson if (status) 7139b1f69b75SAndy Adamson goto out; 7140bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7141b1f69b75SAndy Adamson if (status) 7142b1f69b75SAndy Adamson goto out; 7143bf269551SChuck Lever status = decode_putfh(xdr); 7144b1f69b75SAndy Adamson if (status) 7145b1f69b75SAndy Adamson goto out; 7146bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 7147b1f69b75SAndy Adamson out: 7148b1f69b75SAndy Adamson return status; 7149b1f69b75SAndy Adamson } 7150863a3c6cSAndy Adamson 7151863a3c6cSAndy Adamson /* 7152cbe82603SBenny Halevy * Decode LAYOUTRETURN response 7153cbe82603SBenny Halevy */ 7154cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 7155cbe82603SBenny Halevy struct xdr_stream *xdr, 7156cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 7157cbe82603SBenny Halevy { 7158cbe82603SBenny Halevy struct compound_hdr hdr; 7159cbe82603SBenny Halevy int status; 7160cbe82603SBenny Halevy 7161cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 7162cbe82603SBenny Halevy if (status) 7163cbe82603SBenny Halevy goto out; 7164cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 7165cbe82603SBenny Halevy if (status) 7166cbe82603SBenny Halevy goto out; 7167cbe82603SBenny Halevy status = decode_putfh(xdr); 7168cbe82603SBenny Halevy if (status) 7169cbe82603SBenny Halevy goto out; 7170cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 7171cbe82603SBenny Halevy out: 7172cbe82603SBenny Halevy return status; 7173cbe82603SBenny Halevy } 7174cbe82603SBenny Halevy 7175cbe82603SBenny Halevy /* 7176863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 7177863a3c6cSAndy Adamson */ 7178863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 7179863a3c6cSAndy Adamson struct xdr_stream *xdr, 7180863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 7181863a3c6cSAndy Adamson { 7182863a3c6cSAndy Adamson struct compound_hdr hdr; 7183863a3c6cSAndy Adamson int status; 7184863a3c6cSAndy Adamson 7185863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 7186863a3c6cSAndy Adamson if (status) 7187863a3c6cSAndy Adamson goto out; 7188863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 7189863a3c6cSAndy Adamson if (status) 7190863a3c6cSAndy Adamson goto out; 7191863a3c6cSAndy Adamson status = decode_putfh(xdr); 7192863a3c6cSAndy Adamson if (status) 7193863a3c6cSAndy Adamson goto out; 7194863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 7195863a3c6cSAndy Adamson if (status) 7196863a3c6cSAndy Adamson goto out; 71976926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 7198863a3c6cSAndy Adamson out: 7199863a3c6cSAndy Adamson return status; 7200863a3c6cSAndy Adamson } 7201fca78d6dSBryan Schumaker 7202fca78d6dSBryan Schumaker /* 7203fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7204fca78d6dSBryan Schumaker */ 7205fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7206fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7207fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 7208fca78d6dSBryan Schumaker { 7209fca78d6dSBryan Schumaker struct compound_hdr hdr; 7210fca78d6dSBryan Schumaker int status; 7211fca78d6dSBryan Schumaker 7212fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7213fca78d6dSBryan Schumaker if (status) 7214fca78d6dSBryan Schumaker goto out; 7215fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7216fca78d6dSBryan Schumaker if (status) 7217fca78d6dSBryan Schumaker goto out; 7218fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7219fca78d6dSBryan Schumaker if (status) 7220fca78d6dSBryan Schumaker goto out; 722131e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7222fca78d6dSBryan Schumaker out: 7223fca78d6dSBryan Schumaker return status; 7224fca78d6dSBryan Schumaker } 72257d974794SBryan Schumaker 72267d974794SBryan Schumaker /* 72277d974794SBryan Schumaker * Decode TEST_STATEID response 72287d974794SBryan Schumaker */ 72297d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 72307d974794SBryan Schumaker struct xdr_stream *xdr, 72317d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 72327d974794SBryan Schumaker { 72337d974794SBryan Schumaker struct compound_hdr hdr; 72347d974794SBryan Schumaker int status; 72357d974794SBryan Schumaker 72367d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 72377d974794SBryan Schumaker if (status) 72387d974794SBryan Schumaker goto out; 72397d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 72407d974794SBryan Schumaker if (status) 72417d974794SBryan Schumaker goto out; 72427d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 72437d974794SBryan Schumaker out: 72447d974794SBryan Schumaker return status; 72457d974794SBryan Schumaker } 72469aeda35fSBryan Schumaker 72479aeda35fSBryan Schumaker /* 72489aeda35fSBryan Schumaker * Decode FREE_STATEID response 72499aeda35fSBryan Schumaker */ 72509aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 72519aeda35fSBryan Schumaker struct xdr_stream *xdr, 72529aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 72539aeda35fSBryan Schumaker { 72549aeda35fSBryan Schumaker struct compound_hdr hdr; 72559aeda35fSBryan Schumaker int status; 72569aeda35fSBryan Schumaker 72579aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 72589aeda35fSBryan Schumaker if (status) 72599aeda35fSBryan Schumaker goto out; 72609aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 72619aeda35fSBryan Schumaker if (status) 72629aeda35fSBryan Schumaker goto out; 72639aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 72649aeda35fSBryan Schumaker out: 72659aeda35fSBryan Schumaker return status; 72669aeda35fSBryan Schumaker } 726799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 726899fe60d0SBenny Halevy 7269573c4e1eSChuck Lever /** 7270573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7271573c4e1eSChuck Lever * the local page cache. 7272573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7273573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7274573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7275573c4e1eSChuck Lever * 7276573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7277573c4e1eSChuck Lever * returned. 7278573c4e1eSChuck Lever * 7279573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7280573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7281573c4e1eSChuck Lever * on a directory already in our cache. 7282573c4e1eSChuck Lever */ 7283573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7284573c4e1eSChuck Lever int plus) 72851da177e4SLinus Torvalds { 7286256e48bbSTrond Myklebust unsigned int savep; 7287dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 72881da177e4SLinus Torvalds uint32_t len; 7289babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7290babddc72SBryan Schumaker if (unlikely(!p)) 7291babddc72SBryan Schumaker goto out_overflow; 7292c08e76d0SChuck Lever if (*p == xdr_zero) { 7293babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7294babddc72SBryan Schumaker if (unlikely(!p)) 7295babddc72SBryan Schumaker goto out_overflow; 7296c08e76d0SChuck Lever if (*p == xdr_zero) 7297573c4e1eSChuck Lever return -EAGAIN; 72981da177e4SLinus Torvalds entry->eof = 1; 7299573c4e1eSChuck Lever return -EBADCOOKIE; 73001da177e4SLinus Torvalds } 73011da177e4SLinus Torvalds 7302babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7303babddc72SBryan Schumaker if (unlikely(!p)) 7304babddc72SBryan Schumaker goto out_overflow; 73051da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 73061da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7307c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7308babddc72SBryan Schumaker 73099af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7310babddc72SBryan Schumaker if (unlikely(!p)) 7311babddc72SBryan Schumaker goto out_overflow; 73121da177e4SLinus Torvalds entry->name = (const char *) p; 73131da177e4SLinus Torvalds 73141da177e4SLinus Torvalds /* 73151da177e4SLinus Torvalds * In case the server doesn't return an inode number, 73161da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 73171da177e4SLinus Torvalds * since glibc seems to choke on it...) 73181da177e4SLinus Torvalds */ 73191da177e4SLinus Torvalds entry->ino = 1; 73204f082222STrond Myklebust entry->fattr->valid = 0; 73211da177e4SLinus Torvalds 73229af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7323babddc72SBryan Schumaker goto out_overflow; 73249af8c222STrond Myklebust 7325256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7326babddc72SBryan Schumaker goto out_overflow; 73279af8c222STrond Myklebust 7328573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 7329aa9c2669SDavid Quigley NULL, entry->label, entry->server) < 0) 7330babddc72SBryan Schumaker goto out_overflow; 733128331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 733228331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 733328331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 733482f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 73359af8c222STrond Myklebust 73360b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 73370b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 73380b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 73390b26a0bfSTrond Myklebust 7340573c4e1eSChuck Lever return 0; 7341babddc72SBryan Schumaker 7342babddc72SBryan Schumaker out_overflow: 7343babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7344573c4e1eSChuck Lever return -EAGAIN; 73451da177e4SLinus Torvalds } 73461da177e4SLinus Torvalds 73471da177e4SLinus Torvalds /* 73481da177e4SLinus Torvalds * We need to translate between nfs status return values and 73491da177e4SLinus Torvalds * the local errno values which may not be the same. 73501da177e4SLinus Torvalds */ 73511da177e4SLinus Torvalds static struct { 73521da177e4SLinus Torvalds int stat; 73531da177e4SLinus Torvalds int errno; 73541da177e4SLinus Torvalds } nfs_errtbl[] = { 73551da177e4SLinus Torvalds { NFS4_OK, 0 }, 7356856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7357856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7358856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7359856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7360856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7361856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7362856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7363856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7364856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7365856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7366856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7367856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7368856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7369856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7370856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7371856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7372856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7373856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7374856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7375856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7376856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7377856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7378fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7379856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7380856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7381856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7382856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7383856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7384856dff3dSBenny Halevy { -1, -EIO } 73851da177e4SLinus Torvalds }; 73861da177e4SLinus Torvalds 73871da177e4SLinus Torvalds /* 73881da177e4SLinus Torvalds * Convert an NFS error code to a local one. 73891da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 73901da177e4SLinus Torvalds */ 73911da177e4SLinus Torvalds static int 73920a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 73931da177e4SLinus Torvalds { 73941da177e4SLinus Torvalds int i; 73951da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 73961da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 73971da177e4SLinus Torvalds return nfs_errtbl[i].errno; 73981da177e4SLinus Torvalds } 73991da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 74001da177e4SLinus Torvalds /* The server is looney tunes. */ 7401fdcb4577STrond Myklebust return -EREMOTEIO; 74021da177e4SLinus Torvalds } 74031da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 74041da177e4SLinus Torvalds * handle it. 74051da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 74061da177e4SLinus Torvalds * not conflict with native Linux error codes. 74071da177e4SLinus Torvalds */ 7408856dff3dSBenny Halevy return -stat; 74091da177e4SLinus Torvalds } 74101da177e4SLinus Torvalds 74111c6dcbe5SAnna Schumaker #ifdef CONFIG_NFS_V4_2 74121c6dcbe5SAnna Schumaker #include "nfs42xdr.c" 74131c6dcbe5SAnna Schumaker #endif /* CONFIG_NFS_V4_2 */ 74141c6dcbe5SAnna Schumaker 74151da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 74161da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 74171da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 74189f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7419bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 74202bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 74212bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7422cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7423cc0175c1SChuck Lever .p_name = #proc, \ 74241da177e4SLinus Torvalds } 74251da177e4SLinus Torvalds 74267c61f0d3SAnna Schumaker #define STUB(proc) \ 74277c61f0d3SAnna Schumaker [NFSPROC4_CLNT_##proc] = { \ 74287c61f0d3SAnna Schumaker .p_name = #proc, \ 74297c61f0d3SAnna Schumaker } 74307c61f0d3SAnna Schumaker 74311da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 74321da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 74331da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 74341da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 74351da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 74361da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 74371da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 74381da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 74391da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 74401da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 74411da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 74421da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 74431da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 74441da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 74451da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 74461da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 74471da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 74481da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 74491da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 74501da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 74511da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 74521da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 74531da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 74541da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 74551da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 74561da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 74571da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 74581da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 74591da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 74601da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 74611da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 74621da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7463029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 746423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7465683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7466d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 74675a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 746844c99933SChuck Lever PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present), 746999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 747099fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7471fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 74720f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7473fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 74742050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 747518019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7476b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7477b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7478863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7479cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7480fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 74817d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 74829aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 74837c61f0d3SAnna Schumaker STUB(GETDEVICELIST), 7484ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7485ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 748666245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 748799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 74881c6dcbe5SAnna Schumaker #ifdef CONFIG_NFS_V4_2 74891c6dcbe5SAnna Schumaker PROC(SEEK, enc_seek, dec_seek), 7490f4ac1674SAnna Schumaker PROC(ALLOCATE, enc_allocate, dec_allocate), 7491624bd5b7SAnna Schumaker PROC(DEALLOCATE, enc_deallocate, dec_deallocate), 7492be3a5d23STrond Myklebust PROC(LAYOUTSTATS, enc_layoutstats, dec_layoutstats), 749336022770SPeng Tao PROC(CLONE, enc_clone, dec_clone), 74941c6dcbe5SAnna Schumaker #endif /* CONFIG_NFS_V4_2 */ 74951da177e4SLinus Torvalds }; 74961da177e4SLinus Torvalds 7497a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 74981da177e4SLinus Torvalds .number = 4, 7499e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 75001da177e4SLinus Torvalds .procs = nfs4_procedures 75011da177e4SLinus Torvalds }; 75021da177e4SLinus Torvalds 75031da177e4SLinus Torvalds /* 75041da177e4SLinus Torvalds * Local variables: 75051da177e4SLinus Torvalds * c-basic-offset: 8 75061da177e4SLinus Torvalds * End: 75071da177e4SLinus Torvalds */ 7508