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 */ 18532f86e091SDeepa Dinamani *p++ = cpu_to_be32(ktime_to_ns(nn->boot_time)); /* 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); 19882e18d4d8STrond Myklebust if (args->lastbytewritten != U64_MAX) { 1989ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1990863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1991863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 19922e18d4d8STrond Myklebust } else { 19932e18d4d8STrond Myklebust p = reserve_space(xdr, 12); 19942e18d4d8STrond Myklebust *p++ = cpu_to_be32(0); /* newoffset = FALSE */ 19952e18d4d8STrond Myklebust } 1996863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1997863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1998ac7db726SBenny Halevy 19995f919c9fSChristoph Hellwig if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) { 2000ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 2001ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 20025f919c9fSChristoph Hellwig } else { 20035f919c9fSChristoph Hellwig encode_uint32(xdr, args->layoutupdate_len); 20045f919c9fSChristoph Hellwig if (args->layoutupdate_pages) { 20055f919c9fSChristoph Hellwig xdr_write_pages(xdr, args->layoutupdate_pages, 0, 20065f919c9fSChristoph Hellwig args->layoutupdate_len); 20075f919c9fSChristoph Hellwig } 20085f919c9fSChristoph Hellwig } 2009863a3c6cSAndy Adamson 2010863a3c6cSAndy Adamson return 0; 2011863a3c6cSAndy Adamson } 2012cbe82603SBenny Halevy 2013cbe82603SBenny Halevy static void 2014cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2015cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2016cbe82603SBenny Halevy struct compound_hdr *hdr) 2017cbe82603SBenny Halevy { 2018cbe82603SBenny Halevy __be32 *p; 2019cbe82603SBenny Halevy 2020475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 2021475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 2022cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2023cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 202415eb67c1SPeng Tao *p++ = cpu_to_be32(args->range.iomode); 2025cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2026ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 202715eb67c1SPeng Tao p = xdr_encode_hyper(p, args->range.offset); 202815eb67c1SPeng Tao p = xdr_encode_hyper(p, args->range.length); 2029cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2030ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 2031cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 203204a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 203304a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 203404a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 2035475d4ba0STrond Myklebust } else 2036475d4ba0STrond Myklebust encode_uint32(xdr, 0); 2037cbe82603SBenny Halevy } 2038fca78d6dSBryan Schumaker 2039fca78d6dSBryan Schumaker static int 2040fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2041fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2042fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2043fca78d6dSBryan Schumaker { 2044475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 2045475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2046fca78d6dSBryan Schumaker return 0; 2047fca78d6dSBryan Schumaker } 20487d974794SBryan Schumaker 20497d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20507d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20517d974794SBryan Schumaker struct compound_hdr *hdr) 20527d974794SBryan Schumaker { 2053475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2054475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2055ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20567d974794SBryan Schumaker } 20579aeda35fSBryan Schumaker 20589aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20599aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20609aeda35fSBryan Schumaker struct compound_hdr *hdr) 20619aeda35fSBryan Schumaker { 2062ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 20637c1d5faeSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 20649aeda35fSBryan Schumaker } 2065b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2066b1f69b75SAndy Adamson 20671da177e4SLinus Torvalds /* 20681da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20691da177e4SLinus Torvalds */ 20701da177e4SLinus Torvalds 207166cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 207266cc0429SBenny Halevy { 207366cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 20743bd2384aSChuck Lever struct nfs4_session *session = args->sa_slot->table->session; 20753bd2384aSChuck Lever if (session) 20763bd2384aSChuck Lever return session->clp->cl_mvops->minor_version; 207766cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 207866cc0429SBenny Halevy return 0; 207966cc0429SBenny Halevy } 208066cc0429SBenny Halevy 20811da177e4SLinus Torvalds /* 20821da177e4SLinus Torvalds * Encode an ACCESS request 20831da177e4SLinus Torvalds */ 20849f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20859f06c719SChuck Lever const struct nfs4_accessargs *args) 20861da177e4SLinus Torvalds { 20871da177e4SLinus Torvalds struct compound_hdr hdr = { 208866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20891da177e4SLinus Torvalds }; 20901da177e4SLinus Torvalds 20919f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20929f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20939f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20949f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 20959f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2096d017931cSAndy Adamson encode_nops(&hdr); 20971da177e4SLinus Torvalds } 20981da177e4SLinus Torvalds 20991da177e4SLinus Torvalds /* 21001da177e4SLinus Torvalds * Encode LOOKUP request 21011da177e4SLinus Torvalds */ 21029f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 21039f06c719SChuck Lever const struct nfs4_lookup_arg *args) 21041da177e4SLinus Torvalds { 21051da177e4SLinus Torvalds struct compound_hdr hdr = { 210666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21071da177e4SLinus Torvalds }; 21081da177e4SLinus Torvalds 21099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21109f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21119f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21129f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21139f06c719SChuck Lever encode_getfh(xdr, &hdr); 21149f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2115d017931cSAndy Adamson encode_nops(&hdr); 21161da177e4SLinus Torvalds } 21171da177e4SLinus Torvalds 21181da177e4SLinus Torvalds /* 21191da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21201da177e4SLinus Torvalds */ 21219f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21229f06c719SChuck Lever struct xdr_stream *xdr, 21239f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21241da177e4SLinus Torvalds { 21251da177e4SLinus Torvalds struct compound_hdr hdr = { 212666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21271da177e4SLinus Torvalds }; 21281da177e4SLinus Torvalds 21299f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21309f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21319f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21329f06c719SChuck Lever encode_getfh(xdr, &hdr); 21339f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2134d017931cSAndy Adamson encode_nops(&hdr); 21351da177e4SLinus Torvalds } 21361da177e4SLinus Torvalds 21371da177e4SLinus Torvalds /* 21381da177e4SLinus Torvalds * Encode REMOVE request 21391da177e4SLinus Torvalds */ 21409f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 21419f06c719SChuck Lever const struct nfs_removeargs *args) 21421da177e4SLinus Torvalds { 21431da177e4SLinus Torvalds struct compound_hdr hdr = { 214466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21451da177e4SLinus Torvalds }; 21461da177e4SLinus Torvalds 21479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21489f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21499f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21509f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2151d017931cSAndy Adamson encode_nops(&hdr); 21521da177e4SLinus Torvalds } 21531da177e4SLinus Torvalds 21541da177e4SLinus Torvalds /* 21551da177e4SLinus Torvalds * Encode RENAME request 21561da177e4SLinus Torvalds */ 21579f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21589f06c719SChuck Lever const struct nfs_renameargs *args) 21591da177e4SLinus Torvalds { 21601da177e4SLinus Torvalds struct compound_hdr hdr = { 216166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21621da177e4SLinus Torvalds }; 21631da177e4SLinus Torvalds 21649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21669f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21679f06c719SChuck Lever encode_savefh(xdr, &hdr); 21689f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21699f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2170d017931cSAndy Adamson encode_nops(&hdr); 21711da177e4SLinus Torvalds } 21721da177e4SLinus Torvalds 21731da177e4SLinus Torvalds /* 21741da177e4SLinus Torvalds * Encode LINK request 21751da177e4SLinus Torvalds */ 21769f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21779f06c719SChuck Lever const struct nfs4_link_arg *args) 21781da177e4SLinus Torvalds { 21791da177e4SLinus Torvalds struct compound_hdr hdr = { 218066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21811da177e4SLinus Torvalds }; 21821da177e4SLinus Torvalds 21839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21869f06c719SChuck Lever encode_savefh(xdr, &hdr); 21879f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21889f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21899f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21909f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2191d017931cSAndy Adamson encode_nops(&hdr); 21921da177e4SLinus Torvalds } 21931da177e4SLinus Torvalds 21941da177e4SLinus Torvalds /* 21951da177e4SLinus Torvalds * Encode CREATE request 21961da177e4SLinus Torvalds */ 21979f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 21989f06c719SChuck Lever const struct nfs4_create_arg *args) 21991da177e4SLinus Torvalds { 22001da177e4SLinus Torvalds struct compound_hdr hdr = { 220166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22021da177e4SLinus Torvalds }; 22031da177e4SLinus Torvalds 22049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22059f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22069f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22079f06c719SChuck Lever encode_create(xdr, args, &hdr); 22089f06c719SChuck Lever encode_getfh(xdr, &hdr); 22099f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2210d017931cSAndy Adamson encode_nops(&hdr); 22111da177e4SLinus Torvalds } 22121da177e4SLinus Torvalds 22131da177e4SLinus Torvalds /* 22141da177e4SLinus Torvalds * Encode SYMLINK request 22151da177e4SLinus Torvalds */ 22169f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22179f06c719SChuck Lever const struct nfs4_create_arg *args) 22181da177e4SLinus Torvalds { 22199f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22201da177e4SLinus Torvalds } 22211da177e4SLinus Torvalds 22221da177e4SLinus Torvalds /* 22231da177e4SLinus Torvalds * Encode GETATTR request 22241da177e4SLinus Torvalds */ 22259f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22269f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22271da177e4SLinus Torvalds { 22281da177e4SLinus Torvalds struct compound_hdr hdr = { 222966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22301da177e4SLinus Torvalds }; 22311da177e4SLinus Torvalds 22329f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22339f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22349f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22359f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2236d017931cSAndy Adamson encode_nops(&hdr); 22371da177e4SLinus Torvalds } 22381da177e4SLinus Torvalds 22391da177e4SLinus Torvalds /* 22401da177e4SLinus Torvalds * Encode a CLOSE request 22411da177e4SLinus Torvalds */ 22429f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 22439f06c719SChuck Lever struct nfs_closeargs *args) 22441da177e4SLinus Torvalds { 22451da177e4SLinus Torvalds struct compound_hdr hdr = { 224666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22471da177e4SLinus Torvalds }; 22481da177e4SLinus Torvalds 22499f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22509f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22519f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22529f06c719SChuck Lever encode_close(xdr, args, &hdr); 22539f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2254d017931cSAndy Adamson encode_nops(&hdr); 22551da177e4SLinus Torvalds } 22561da177e4SLinus Torvalds 22571da177e4SLinus Torvalds /* 22581da177e4SLinus Torvalds * Encode an OPEN request 22591da177e4SLinus Torvalds */ 22609f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22619f06c719SChuck Lever struct nfs_openargs *args) 22621da177e4SLinus Torvalds { 22631da177e4SLinus Torvalds struct compound_hdr hdr = { 226466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22651da177e4SLinus Torvalds }; 22661da177e4SLinus Torvalds 22679f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22689f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22699f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22709f06c719SChuck Lever encode_open(xdr, args, &hdr); 22719f06c719SChuck Lever encode_getfh(xdr, &hdr); 2272ae2bb032SWeston Andros Adamson if (args->access) 22736168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22741549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2275d017931cSAndy Adamson encode_nops(&hdr); 22761da177e4SLinus Torvalds } 22771da177e4SLinus Torvalds 22781da177e4SLinus Torvalds /* 22791da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22801da177e4SLinus Torvalds */ 22819f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22829f06c719SChuck Lever struct xdr_stream *xdr, 22839f06c719SChuck Lever struct nfs_open_confirmargs *args) 22841da177e4SLinus Torvalds { 22851da177e4SLinus Torvalds struct compound_hdr hdr = { 2286d017931cSAndy Adamson .nops = 0, 22871da177e4SLinus Torvalds }; 22881da177e4SLinus Torvalds 22899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22909f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22919f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2292d017931cSAndy Adamson encode_nops(&hdr); 22931da177e4SLinus Torvalds } 22941da177e4SLinus Torvalds 22951da177e4SLinus Torvalds /* 22961da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 22971da177e4SLinus Torvalds */ 22989f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 22999f06c719SChuck Lever struct xdr_stream *xdr, 23009f06c719SChuck Lever struct nfs_openargs *args) 23011da177e4SLinus Torvalds { 23021da177e4SLinus Torvalds struct compound_hdr hdr = { 230366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23041da177e4SLinus Torvalds }; 23051da177e4SLinus Torvalds 23069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23089f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23099f06c719SChuck Lever encode_open(xdr, args, &hdr); 2310ae2bb032SWeston Andros Adamson if (args->access) 23116168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2312e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2313d017931cSAndy Adamson encode_nops(&hdr); 23141da177e4SLinus Torvalds } 23151da177e4SLinus Torvalds 23161da177e4SLinus Torvalds /* 23171da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23181da177e4SLinus Torvalds */ 23199f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23209f06c719SChuck Lever struct xdr_stream *xdr, 23219f06c719SChuck Lever struct nfs_closeargs *args) 23221da177e4SLinus Torvalds { 23231da177e4SLinus Torvalds struct compound_hdr hdr = { 232466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23251da177e4SLinus Torvalds }; 23261da177e4SLinus Torvalds 23279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23289f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23299f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23309f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 23319f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2332d017931cSAndy Adamson encode_nops(&hdr); 23331da177e4SLinus Torvalds } 23341da177e4SLinus Torvalds 23351da177e4SLinus Torvalds /* 23361da177e4SLinus Torvalds * Encode a LOCK request 23371da177e4SLinus Torvalds */ 23389f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 23399f06c719SChuck Lever struct nfs_lock_args *args) 23401da177e4SLinus Torvalds { 23411da177e4SLinus Torvalds struct compound_hdr hdr = { 234266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23431da177e4SLinus Torvalds }; 23441da177e4SLinus Torvalds 23459f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23469f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23479f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23489f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2349d017931cSAndy Adamson encode_nops(&hdr); 23501da177e4SLinus Torvalds } 23511da177e4SLinus Torvalds 23521da177e4SLinus Torvalds /* 23531da177e4SLinus Torvalds * Encode a LOCKT request 23541da177e4SLinus Torvalds */ 23559f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23569f06c719SChuck Lever struct nfs_lockt_args *args) 23571da177e4SLinus Torvalds { 23581da177e4SLinus Torvalds struct compound_hdr hdr = { 235966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23601da177e4SLinus Torvalds }; 23611da177e4SLinus Torvalds 23629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23649f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23659f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2366d017931cSAndy Adamson encode_nops(&hdr); 23671da177e4SLinus Torvalds } 23681da177e4SLinus Torvalds 23691da177e4SLinus Torvalds /* 23701da177e4SLinus Torvalds * Encode a LOCKU request 23711da177e4SLinus Torvalds */ 23729f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23739f06c719SChuck Lever struct nfs_locku_args *args) 23741da177e4SLinus Torvalds { 23751da177e4SLinus Torvalds struct compound_hdr hdr = { 237666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23771da177e4SLinus Torvalds }; 23781da177e4SLinus Torvalds 23799f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23809f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23819f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23829f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2383d017931cSAndy Adamson encode_nops(&hdr); 23841da177e4SLinus Torvalds } 23851da177e4SLinus Torvalds 23869f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23879f06c719SChuck Lever struct xdr_stream *xdr, 23889f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2389d3c7b7ccSTrond Myklebust { 2390d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2391d3c7b7ccSTrond Myklebust .minorversion = 0, 2392d3c7b7ccSTrond Myklebust }; 2393d3c7b7ccSTrond Myklebust 23949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23959f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2396d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2397d3c7b7ccSTrond Myklebust } 2398d3c7b7ccSTrond Myklebust 23991da177e4SLinus Torvalds /* 24001da177e4SLinus Torvalds * Encode a READLINK request 24011da177e4SLinus Torvalds */ 24029f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 24039f06c719SChuck Lever const struct nfs4_readlink *args) 24041da177e4SLinus Torvalds { 24051da177e4SLinus Torvalds struct compound_hdr hdr = { 240666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24071da177e4SLinus Torvalds }; 24081da177e4SLinus Torvalds 24099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24109f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24119f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24129f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2413e3a535e1STrond Myklebust 241428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2415e3a535e1STrond Myklebust args->pgbase, args->pglen); 2416d017931cSAndy Adamson encode_nops(&hdr); 24171da177e4SLinus Torvalds } 24181da177e4SLinus Torvalds 24191da177e4SLinus Torvalds /* 24201da177e4SLinus Torvalds * Encode a READDIR request 24211da177e4SLinus Torvalds */ 24229f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24239f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24241da177e4SLinus Torvalds { 24251da177e4SLinus Torvalds struct compound_hdr hdr = { 242666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24271da177e4SLinus Torvalds }; 24281da177e4SLinus Torvalds 24299f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24309f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24319f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24329f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2433d6ac02dfSTrond Myklebust 243428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2435d6ac02dfSTrond Myklebust args->pgbase, args->count); 2436d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 243728f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2438d6ac02dfSTrond Myklebust args->pgbase, args->count); 2439d017931cSAndy Adamson encode_nops(&hdr); 24401da177e4SLinus Torvalds } 24411da177e4SLinus Torvalds 24421da177e4SLinus Torvalds /* 24431da177e4SLinus Torvalds * Encode a READ request 24441da177e4SLinus Torvalds */ 24459f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24463c6b899cSAnna Schumaker struct nfs_pgio_args *args) 24471da177e4SLinus Torvalds { 24481da177e4SLinus Torvalds struct compound_hdr hdr = { 244966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24501da177e4SLinus Torvalds }; 24511da177e4SLinus Torvalds 24529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24549f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24559f06c719SChuck Lever encode_read(xdr, args, &hdr); 24561da177e4SLinus Torvalds 245728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24581da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24594f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2460d017931cSAndy Adamson encode_nops(&hdr); 24611da177e4SLinus Torvalds } 24621da177e4SLinus Torvalds 24631da177e4SLinus Torvalds /* 24641da177e4SLinus Torvalds * Encode an SETATTR request 24651da177e4SLinus Torvalds */ 24669f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24679f06c719SChuck Lever struct nfs_setattrargs *args) 24681da177e4SLinus Torvalds { 24691da177e4SLinus Torvalds struct compound_hdr hdr = { 247066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24711da177e4SLinus Torvalds }; 24721da177e4SLinus Torvalds 24739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24749f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24759f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24769f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24779f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2478d017931cSAndy Adamson encode_nops(&hdr); 24791da177e4SLinus Torvalds } 24801da177e4SLinus Torvalds 24811da177e4SLinus Torvalds /* 2482029d105eSJ. Bruce Fields * Encode a GETACL request 2483029d105eSJ. Bruce Fields */ 24849f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2485029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2486029d105eSJ. Bruce Fields { 2487029d105eSJ. Bruce Fields struct compound_hdr hdr = { 248866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2489029d105eSJ. Bruce Fields }; 249028f56694SBenny Halevy uint32_t replen; 2491029d105eSJ. Bruce Fields 24929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24939f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24949f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2495bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 24969f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2497cf8cdbe5SAndy Adamson 249828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 24998fbcf237SAndreas Gruenbacher args->acl_pages, 0, args->acl_len); 2500bf118a34SAndy Adamson 2501d017931cSAndy Adamson encode_nops(&hdr); 2502029d105eSJ. Bruce Fields } 2503029d105eSJ. Bruce Fields 2504029d105eSJ. Bruce Fields /* 25051da177e4SLinus Torvalds * Encode a WRITE request 25061da177e4SLinus Torvalds */ 25079f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25083c6b899cSAnna Schumaker struct nfs_pgio_args *args) 25091da177e4SLinus Torvalds { 25101da177e4SLinus Torvalds struct compound_hdr hdr = { 251166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25121da177e4SLinus Torvalds }; 25131da177e4SLinus Torvalds 25149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25159f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25169f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25179f06c719SChuck Lever encode_write(xdr, args, &hdr); 25184f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25197ffd1064SFred Isaman if (args->bitmask) 25209f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2521d017931cSAndy Adamson encode_nops(&hdr); 25221da177e4SLinus Torvalds } 25231da177e4SLinus Torvalds 25241da177e4SLinus Torvalds /* 25251da177e4SLinus Torvalds * a COMMIT request 25261da177e4SLinus Torvalds */ 25279f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25280b7c0153SFred Isaman struct nfs_commitargs *args) 25291da177e4SLinus Torvalds { 25301da177e4SLinus Torvalds struct compound_hdr hdr = { 253166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25321da177e4SLinus Torvalds }; 25331da177e4SLinus Torvalds 25349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25359f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25369f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25379f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2538d017931cSAndy Adamson encode_nops(&hdr); 25391da177e4SLinus Torvalds } 25401da177e4SLinus Torvalds 25411da177e4SLinus Torvalds /* 25421da177e4SLinus Torvalds * FSINFO request 25431da177e4SLinus Torvalds */ 25449f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 25459f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25461da177e4SLinus Torvalds { 25471da177e4SLinus Torvalds struct compound_hdr hdr = { 254866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25491da177e4SLinus Torvalds }; 25501da177e4SLinus Torvalds 25519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25529f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25539f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25549f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2555d017931cSAndy Adamson encode_nops(&hdr); 25561da177e4SLinus Torvalds } 25571da177e4SLinus Torvalds 25581da177e4SLinus Torvalds /* 25591da177e4SLinus Torvalds * a PATHCONF request 25601da177e4SLinus Torvalds */ 25619f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25629f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25631da177e4SLinus Torvalds { 25641da177e4SLinus Torvalds struct compound_hdr hdr = { 256566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25661da177e4SLinus Torvalds }; 25671da177e4SLinus Torvalds 25689f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25699f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25709f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25719f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2572d017931cSAndy Adamson &hdr); 2573d017931cSAndy Adamson encode_nops(&hdr); 25741da177e4SLinus Torvalds } 25751da177e4SLinus Torvalds 25761da177e4SLinus Torvalds /* 25771da177e4SLinus Torvalds * a STATFS request 25781da177e4SLinus Torvalds */ 25799f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25809f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25811da177e4SLinus Torvalds { 25821da177e4SLinus Torvalds struct compound_hdr hdr = { 258366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25841da177e4SLinus Torvalds }; 25851da177e4SLinus Torvalds 25869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25879f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25889f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25899f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2590d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2591d017931cSAndy Adamson encode_nops(&hdr); 25921da177e4SLinus Torvalds } 25931da177e4SLinus Torvalds 25941da177e4SLinus Torvalds /* 25951da177e4SLinus Torvalds * GETATTR_BITMAP request 25961da177e4SLinus Torvalds */ 25979f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 25989f06c719SChuck Lever struct xdr_stream *xdr, 259943652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 26001da177e4SLinus Torvalds { 26018c61282fSKinglong Mee const u32 *bitmask = args->bitmask; 26021da177e4SLinus Torvalds struct compound_hdr hdr = { 260366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26041da177e4SLinus Torvalds }; 26051da177e4SLinus Torvalds 26069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26089f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26098c61282fSKinglong Mee encode_getattr_three(xdr, bitmask[0], bitmask[1], bitmask[2], &hdr); 2610d017931cSAndy Adamson encode_nops(&hdr); 26111da177e4SLinus Torvalds } 26121da177e4SLinus Torvalds 26131da177e4SLinus Torvalds /* 26141da177e4SLinus Torvalds * a RENEW request 26151da177e4SLinus Torvalds */ 26169f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 26179f06c719SChuck Lever struct nfs_client *clp) 26181da177e4SLinus Torvalds { 26191da177e4SLinus Torvalds struct compound_hdr hdr = { 2620d017931cSAndy Adamson .nops = 0, 26211da177e4SLinus Torvalds }; 26221da177e4SLinus Torvalds 26239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2624bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2625d017931cSAndy Adamson encode_nops(&hdr); 26261da177e4SLinus Torvalds } 26271da177e4SLinus Torvalds 26281da177e4SLinus Torvalds /* 26291da177e4SLinus Torvalds * a SETCLIENTID request 26301da177e4SLinus Torvalds */ 26319f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 26329f06c719SChuck Lever struct xdr_stream *xdr, 26339f06c719SChuck Lever struct nfs4_setclientid *sc) 26341da177e4SLinus Torvalds { 26351da177e4SLinus Torvalds struct compound_hdr hdr = { 2636d017931cSAndy Adamson .nops = 0, 26371da177e4SLinus Torvalds }; 26381da177e4SLinus Torvalds 26399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26409f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2641d017931cSAndy Adamson encode_nops(&hdr); 26421da177e4SLinus Torvalds } 26431da177e4SLinus Torvalds 26441da177e4SLinus Torvalds /* 26451da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 26461da177e4SLinus Torvalds */ 26479f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26489f06c719SChuck Lever struct xdr_stream *xdr, 26499f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26501da177e4SLinus Torvalds { 26511da177e4SLinus Torvalds struct compound_hdr hdr = { 2652d017931cSAndy Adamson .nops = 0, 26531da177e4SLinus Torvalds }; 26541da177e4SLinus Torvalds 26559f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26569f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 2657d017931cSAndy Adamson encode_nops(&hdr); 26581da177e4SLinus Torvalds } 26591da177e4SLinus Torvalds 26601da177e4SLinus Torvalds /* 26611da177e4SLinus Torvalds * DELEGRETURN request 26621da177e4SLinus Torvalds */ 26639f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26649f06c719SChuck Lever struct xdr_stream *xdr, 26659f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26661da177e4SLinus Torvalds { 26671da177e4SLinus Torvalds struct compound_hdr hdr = { 266866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26691da177e4SLinus Torvalds }; 26701da177e4SLinus Torvalds 26719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26729f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26739f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26749f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2675e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2676d017931cSAndy Adamson encode_nops(&hdr); 26771da177e4SLinus Torvalds } 26781da177e4SLinus Torvalds 26791da177e4SLinus Torvalds /* 2680683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2681683b57b4STrond Myklebust */ 26829f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26839f06c719SChuck Lever struct xdr_stream *xdr, 26849f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2685683b57b4STrond Myklebust { 2686683b57b4STrond Myklebust struct compound_hdr hdr = { 268766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2688683b57b4STrond Myklebust }; 268928f56694SBenny Halevy uint32_t replen; 2690683b57b4STrond Myklebust 26919f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26929f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 2693b03d735bSChuck Lever if (args->migration) { 2694b03d735bSChuck Lever encode_putfh(xdr, args->fh, &hdr); 2695b03d735bSChuck Lever replen = hdr.replen; 2696b03d735bSChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2697b03d735bSChuck Lever if (args->renew) 2698b03d735bSChuck Lever encode_renew(xdr, args->clientid, &hdr); 2699b03d735bSChuck Lever } else { 27009f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27019f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 2702b03d735bSChuck Lever replen = hdr.replen; 27039f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2704b03d735bSChuck Lever } 2705cf8cdbe5SAndy Adamson 2706b03d735bSChuck Lever /* Set up reply kvec to capture returned fs_locations array. */ 270728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2708683b57b4STrond Myklebust 0, PAGE_SIZE); 2709d017931cSAndy Adamson encode_nops(&hdr); 2710683b57b4STrond Myklebust } 2711683b57b4STrond Myklebust 27125a5ea0d4SBryan Schumaker /* 27135a5ea0d4SBryan Schumaker * Encode SECINFO request 27145a5ea0d4SBryan Schumaker */ 27155a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27165a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27175a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27185a5ea0d4SBryan Schumaker { 27195a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27205a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27215a5ea0d4SBryan Schumaker }; 27225a5ea0d4SBryan Schumaker 27235a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27245a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27255a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27265a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27275a5ea0d4SBryan Schumaker encode_nops(&hdr); 27285a5ea0d4SBryan Schumaker } 27295a5ea0d4SBryan Schumaker 273044c99933SChuck Lever /* 273144c99933SChuck Lever * Encode FSID_PRESENT request 273244c99933SChuck Lever */ 273344c99933SChuck Lever static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req, 273444c99933SChuck Lever struct xdr_stream *xdr, 273544c99933SChuck Lever struct nfs4_fsid_present_arg *args) 273644c99933SChuck Lever { 273744c99933SChuck Lever struct compound_hdr hdr = { 273844c99933SChuck Lever .minorversion = nfs4_xdr_minorversion(&args->seq_args), 273944c99933SChuck Lever }; 274044c99933SChuck Lever 274144c99933SChuck Lever encode_compound_hdr(xdr, req, &hdr); 274244c99933SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 274344c99933SChuck Lever encode_putfh(xdr, args->fh, &hdr); 274444c99933SChuck Lever encode_getfh(xdr, &hdr); 274544c99933SChuck Lever if (args->renew) 274644c99933SChuck Lever encode_renew(xdr, args->clientid, &hdr); 274744c99933SChuck Lever encode_nops(&hdr); 274844c99933SChuck Lever } 274944c99933SChuck Lever 275099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 275199fe60d0SBenny Halevy /* 27527c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 27537c44f1aeSWeston Andros Adamson */ 27547c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 27557c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 275671a097c6STrond Myklebust struct nfs41_bind_conn_to_session_args *args) 27577c44f1aeSWeston Andros Adamson { 27587c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 275971a097c6STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 27607c44f1aeSWeston Andros Adamson }; 27617c44f1aeSWeston Andros Adamson 27627c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 276371a097c6STrond Myklebust encode_bind_conn_to_session(xdr, args, &hdr); 27647c44f1aeSWeston Andros Adamson encode_nops(&hdr); 27657c44f1aeSWeston Andros Adamson } 27667c44f1aeSWeston Andros Adamson 27677c44f1aeSWeston Andros Adamson /* 276899fe60d0SBenny Halevy * EXCHANGE_ID request 276999fe60d0SBenny Halevy */ 27709f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27719f06c719SChuck Lever struct xdr_stream *xdr, 277299fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 277399fe60d0SBenny Halevy { 277499fe60d0SBenny Halevy struct compound_hdr hdr = { 2775a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 277699fe60d0SBenny Halevy }; 277799fe60d0SBenny Halevy 27789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27799f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 278099fe60d0SBenny Halevy encode_nops(&hdr); 278199fe60d0SBenny Halevy } 27822050f0ccSAndy Adamson 27832050f0ccSAndy Adamson /* 2784fc931582SAndy Adamson * a CREATE_SESSION request 2785fc931582SAndy Adamson */ 27869f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27879f06c719SChuck Lever struct xdr_stream *xdr, 2788fc931582SAndy Adamson struct nfs41_create_session_args *args) 2789fc931582SAndy Adamson { 2790fc931582SAndy Adamson struct compound_hdr hdr = { 2791a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2792fc931582SAndy Adamson }; 2793fc931582SAndy Adamson 27949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27959f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2796fc931582SAndy Adamson encode_nops(&hdr); 2797fc931582SAndy Adamson } 2798fc931582SAndy Adamson 2799fc931582SAndy Adamson /* 28000f3e66c6SAndy Adamson * a DESTROY_SESSION request 28010f3e66c6SAndy Adamson */ 28029f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 28039f06c719SChuck Lever struct xdr_stream *xdr, 28040f3e66c6SAndy Adamson struct nfs4_session *session) 28050f3e66c6SAndy Adamson { 28060f3e66c6SAndy Adamson struct compound_hdr hdr = { 2807a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28080f3e66c6SAndy Adamson }; 28090f3e66c6SAndy Adamson 28109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28119f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28120f3e66c6SAndy Adamson encode_nops(&hdr); 28130f3e66c6SAndy Adamson } 28140f3e66c6SAndy Adamson 28150f3e66c6SAndy Adamson /* 281666245539STrond Myklebust * a DESTROY_CLIENTID request 281766245539STrond Myklebust */ 281866245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 281966245539STrond Myklebust struct xdr_stream *xdr, 282066245539STrond Myklebust struct nfs_client *clp) 282166245539STrond Myklebust { 282266245539STrond Myklebust struct compound_hdr hdr = { 282366245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 282466245539STrond Myklebust }; 282566245539STrond Myklebust 282666245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 282766245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 282866245539STrond Myklebust encode_nops(&hdr); 282966245539STrond Myklebust } 283066245539STrond Myklebust 283166245539STrond Myklebust /* 2832fc01cea9SAndy Adamson * a SEQUENCE request 2833fc01cea9SAndy Adamson */ 28349f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2835fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2836fc01cea9SAndy Adamson { 2837fc01cea9SAndy Adamson struct compound_hdr hdr = { 2838fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2839fc01cea9SAndy Adamson }; 2840fc01cea9SAndy Adamson 28419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28429f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2843fc01cea9SAndy Adamson encode_nops(&hdr); 2844fc01cea9SAndy Adamson } 2845fc01cea9SAndy Adamson 2846fc01cea9SAndy Adamson /* 28472050f0ccSAndy Adamson * a GET_LEASE_TIME request 28482050f0ccSAndy Adamson */ 28499f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28509f06c719SChuck Lever struct xdr_stream *xdr, 28512050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28522050f0ccSAndy Adamson { 28532050f0ccSAndy Adamson struct compound_hdr hdr = { 28542050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28552050f0ccSAndy Adamson }; 2856dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28572050f0ccSAndy Adamson 28589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28599f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28609f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28619f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28622050f0ccSAndy Adamson encode_nops(&hdr); 28632050f0ccSAndy Adamson } 286418019753SRicardo Labiaga 286518019753SRicardo Labiaga /* 286618019753SRicardo Labiaga * a RECLAIM_COMPLETE request 286718019753SRicardo Labiaga */ 28689f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28699f06c719SChuck Lever struct xdr_stream *xdr, 287018019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 287118019753SRicardo Labiaga { 287218019753SRicardo Labiaga struct compound_hdr hdr = { 287318019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 287418019753SRicardo Labiaga }; 287518019753SRicardo Labiaga 28769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28779f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28789f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 287918019753SRicardo Labiaga encode_nops(&hdr); 288018019753SRicardo Labiaga } 288118019753SRicardo Labiaga 2882b1f69b75SAndy Adamson /* 2883b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2884b1f69b75SAndy Adamson */ 28859f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28869f06c719SChuck Lever struct xdr_stream *xdr, 2887b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2888b1f69b75SAndy Adamson { 2889b1f69b75SAndy Adamson struct compound_hdr hdr = { 2890b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2891b1f69b75SAndy Adamson }; 2892b1f69b75SAndy Adamson 28939f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28949f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28959f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2896b1f69b75SAndy Adamson 2897b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2898b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2899b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2900b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2901b1f69b75SAndy Adamson args->pdev->pglen); 2902b1f69b75SAndy Adamson 2903b1f69b75SAndy Adamson encode_nops(&hdr); 2904b1f69b75SAndy Adamson } 2905b1f69b75SAndy Adamson 2906b1f69b75SAndy Adamson /* 2907b1f69b75SAndy Adamson * Encode LAYOUTGET request 2908b1f69b75SAndy Adamson */ 29099f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29109f06c719SChuck Lever struct xdr_stream *xdr, 2911b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2912b1f69b75SAndy Adamson { 2913b1f69b75SAndy Adamson struct compound_hdr hdr = { 2914b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2915b1f69b75SAndy Adamson }; 2916b1f69b75SAndy Adamson 29179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29189f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29199f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29209f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 292135124a09SWeston Andros Adamson 292235124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 292335124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 292435124a09SWeston Andros Adamson 2925b1f69b75SAndy Adamson encode_nops(&hdr); 2926b1f69b75SAndy Adamson } 2927863a3c6cSAndy Adamson 2928863a3c6cSAndy Adamson /* 2929863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2930863a3c6cSAndy Adamson */ 2931cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2932863a3c6cSAndy Adamson struct xdr_stream *xdr, 2933863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2934863a3c6cSAndy Adamson { 2935ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2936ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2937863a3c6cSAndy Adamson struct compound_hdr hdr = { 2938863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2939863a3c6cSAndy Adamson }; 2940863a3c6cSAndy Adamson 2941863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2942863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2943863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2944ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2945863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2946863a3c6cSAndy Adamson encode_nops(&hdr); 2947cbe82603SBenny Halevy } 2948cbe82603SBenny Halevy 2949cbe82603SBenny Halevy /* 2950cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2951cbe82603SBenny Halevy */ 2952cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2953cbe82603SBenny Halevy struct xdr_stream *xdr, 2954cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2955cbe82603SBenny Halevy { 2956cbe82603SBenny Halevy struct compound_hdr hdr = { 2957cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2958cbe82603SBenny Halevy }; 2959cbe82603SBenny Halevy 2960cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2961cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2962cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2963cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2964cbe82603SBenny Halevy encode_nops(&hdr); 2965863a3c6cSAndy Adamson } 2966fca78d6dSBryan Schumaker 2967fca78d6dSBryan Schumaker /* 2968fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2969fca78d6dSBryan Schumaker */ 2970fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2971fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2972fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2973fca78d6dSBryan Schumaker { 2974fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2975fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2976fca78d6dSBryan Schumaker }; 2977fca78d6dSBryan Schumaker 2978fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2979fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2980fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2981fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2982fca78d6dSBryan Schumaker encode_nops(&hdr); 2983fca78d6dSBryan Schumaker return 0; 2984fca78d6dSBryan Schumaker } 29857d974794SBryan Schumaker 29867d974794SBryan Schumaker /* 29877d974794SBryan Schumaker * Encode TEST_STATEID request 29887d974794SBryan Schumaker */ 29897d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29907d974794SBryan Schumaker struct xdr_stream *xdr, 29917d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29927d974794SBryan Schumaker { 29937d974794SBryan Schumaker struct compound_hdr hdr = { 29947d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29957d974794SBryan Schumaker }; 29967d974794SBryan Schumaker 29977d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29987d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29997d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 30007d974794SBryan Schumaker encode_nops(&hdr); 30017d974794SBryan Schumaker } 30029aeda35fSBryan Schumaker 30039aeda35fSBryan Schumaker /* 30049aeda35fSBryan Schumaker * Encode FREE_STATEID request 30059aeda35fSBryan Schumaker */ 30069aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30079aeda35fSBryan Schumaker struct xdr_stream *xdr, 30089aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 30099aeda35fSBryan Schumaker { 30109aeda35fSBryan Schumaker struct compound_hdr hdr = { 30119aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30129aeda35fSBryan Schumaker }; 30139aeda35fSBryan Schumaker 30149aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30159aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30169aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30179aeda35fSBryan Schumaker encode_nops(&hdr); 30189aeda35fSBryan Schumaker } 301999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 302099fe60d0SBenny Halevy 3021686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3022686841b3SBenny Halevy { 3023686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3024686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3025686841b3SBenny Halevy func, xdr->end - xdr->p); 3026686841b3SBenny Halevy } 30271da177e4SLinus Torvalds 3028683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30291da177e4SLinus Torvalds { 30308687b63aSAl Viro __be32 *p; 30311da177e4SLinus Torvalds 3032c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3033c0eae66eSBenny Halevy if (unlikely(!p)) 3034c0eae66eSBenny Halevy goto out_overflow; 3035cccddf4fSBenny Halevy *len = be32_to_cpup(p); 3036c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 3037c0eae66eSBenny Halevy if (unlikely(!p)) 3038c0eae66eSBenny Halevy goto out_overflow; 30391da177e4SLinus Torvalds *string = (char *)p; 30401da177e4SLinus Torvalds return 0; 3041c0eae66eSBenny Halevy out_overflow: 3042c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3043c0eae66eSBenny Halevy return -EIO; 30441da177e4SLinus Torvalds } 30451da177e4SLinus Torvalds 30461da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30471da177e4SLinus Torvalds { 30488687b63aSAl Viro __be32 *p; 30491da177e4SLinus Torvalds 3050c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3051c0eae66eSBenny Halevy if (unlikely(!p)) 3052c0eae66eSBenny Halevy goto out_overflow; 30536f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3054cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30551da177e4SLinus Torvalds 3056c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3057c0eae66eSBenny Halevy if (unlikely(!p)) 3058c0eae66eSBenny Halevy goto out_overflow; 30591da177e4SLinus Torvalds hdr->tag = (char *)p; 30601da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3061cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3062aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3063aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30641da177e4SLinus Torvalds return 0; 3065c0eae66eSBenny Halevy out_overflow: 3066c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3067c0eae66eSBenny Halevy return -EIO; 30681da177e4SLinus Torvalds } 30691da177e4SLinus Torvalds 3070c7848f69STrond Myklebust static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected, 3071c7848f69STrond Myklebust int *nfs_retval) 30721da177e4SLinus Torvalds { 30738687b63aSAl Viro __be32 *p; 30741da177e4SLinus Torvalds uint32_t opnum; 30751da177e4SLinus Torvalds int32_t nfserr; 30761da177e4SLinus Torvalds 3077c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3078c0eae66eSBenny Halevy if (unlikely(!p)) 3079c0eae66eSBenny Halevy goto out_overflow; 30806f723f77SBenny Halevy opnum = be32_to_cpup(p++); 3081c7848f69STrond Myklebust if (unlikely(opnum != expected)) 3082c7848f69STrond Myklebust goto out_bad_operation; 3083c7848f69STrond Myklebust nfserr = be32_to_cpup(p); 3084c7848f69STrond Myklebust if (nfserr == NFS_OK) 3085c7848f69STrond Myklebust *nfs_retval = 0; 3086c7848f69STrond Myklebust else 3087c7848f69STrond Myklebust *nfs_retval = nfs4_stat_to_errno(nfserr); 3088c7848f69STrond Myklebust return true; 3089c7848f69STrond Myklebust out_bad_operation: 3090fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30911da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30921da177e4SLinus Torvalds opnum, expected); 3093c7848f69STrond Myklebust *nfs_retval = -EREMOTEIO; 3094c7848f69STrond Myklebust return false; 3095c0eae66eSBenny Halevy out_overflow: 3096c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3097c7848f69STrond Myklebust *nfs_retval = -EIO; 3098c7848f69STrond Myklebust return false; 3099c7848f69STrond Myklebust } 3100c7848f69STrond Myklebust 3101c7848f69STrond Myklebust static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 3102c7848f69STrond Myklebust { 3103c7848f69STrond Myklebust int retval; 3104c7848f69STrond Myklebust 3105c7848f69STrond Myklebust __decode_op_hdr(xdr, expected, &retval); 3106c7848f69STrond Myklebust return retval; 31071da177e4SLinus Torvalds } 31081da177e4SLinus Torvalds 31091da177e4SLinus Torvalds /* Dummy routine */ 3110adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 31111da177e4SLinus Torvalds { 31128687b63aSAl Viro __be32 *p; 3113683b57b4STrond Myklebust unsigned int strlen; 31141da177e4SLinus Torvalds char *str; 31151da177e4SLinus Torvalds 3116c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3117c0eae66eSBenny Halevy if (likely(p)) 31181da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3119c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3120c0eae66eSBenny Halevy return -EIO; 31211da177e4SLinus Torvalds } 31221da177e4SLinus Torvalds 31231da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31241da177e4SLinus Torvalds { 31258687b63aSAl Viro uint32_t bmlen; 31268687b63aSAl Viro __be32 *p; 31271da177e4SLinus Torvalds 3128c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3129c0eae66eSBenny Halevy if (unlikely(!p)) 3130c0eae66eSBenny Halevy goto out_overflow; 3131cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31321da177e4SLinus Torvalds 3133dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3134c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3135c0eae66eSBenny Halevy if (unlikely(!p)) 3136c0eae66eSBenny Halevy goto out_overflow; 31371da177e4SLinus Torvalds if (bmlen > 0) { 31386f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3139dae100c2SFred Isaman if (bmlen > 1) { 3140dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3141dae100c2SFred Isaman if (bmlen > 2) 3142dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3143dae100c2SFred Isaman } 31441da177e4SLinus Torvalds } 31451da177e4SLinus Torvalds return 0; 3146c0eae66eSBenny Halevy out_overflow: 3147c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3148c0eae66eSBenny Halevy return -EIO; 31491da177e4SLinus Torvalds } 31501da177e4SLinus Torvalds 3151256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 31521da177e4SLinus Torvalds { 31538687b63aSAl Viro __be32 *p; 31541da177e4SLinus Torvalds 3155c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3156c0eae66eSBenny Halevy if (unlikely(!p)) 3157c0eae66eSBenny Halevy goto out_overflow; 3158cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3159256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 31601da177e4SLinus Torvalds return 0; 3161c0eae66eSBenny Halevy out_overflow: 3162c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3163c0eae66eSBenny Halevy return -EIO; 31641da177e4SLinus Torvalds } 31651da177e4SLinus Torvalds 31661da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31671da177e4SLinus Torvalds { 31681da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31693388bff5SRoman Borisov int ret; 31703388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31713388bff5SRoman Borisov if (unlikely(ret < 0)) 31723388bff5SRoman Borisov return ret; 31731da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31741da177e4SLinus Torvalds } else 3175dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3176dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3177dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31781da177e4SLinus Torvalds return 0; 31791da177e4SLinus Torvalds } 31801da177e4SLinus Torvalds 31811da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31821da177e4SLinus Torvalds { 31838687b63aSAl Viro __be32 *p; 3184409924e4STrond Myklebust int ret = 0; 31851da177e4SLinus Torvalds 31861da177e4SLinus Torvalds *type = 0; 31871da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31881da177e4SLinus Torvalds return -EIO; 31891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3190c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3191c0eae66eSBenny Halevy if (unlikely(!p)) 3192c0eae66eSBenny Halevy goto out_overflow; 3193cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31941da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31953110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31961da177e4SLinus Torvalds return -EIO; 31971da177e4SLinus Torvalds } 31981da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3199409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32001da177e4SLinus Torvalds } 3201bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3202409924e4STrond Myklebust return ret; 3203c0eae66eSBenny Halevy out_overflow: 3204c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3205c0eae66eSBenny Halevy return -EIO; 32061da177e4SLinus Torvalds } 32071da177e4SLinus Torvalds 3208264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3209264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3210264e6351SChuck Lever { 3211264e6351SChuck Lever __be32 *p; 3212264e6351SChuck Lever 3213264e6351SChuck Lever *type = 0; 3214264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3215264e6351SChuck Lever return -EIO; 3216264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3217264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3218264e6351SChuck Lever if (unlikely(!p)) 3219264e6351SChuck Lever goto out_overflow; 3220264e6351SChuck Lever *type = be32_to_cpup(p); 3221264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3222264e6351SChuck Lever } 3223264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3224264e6351SChuck Lever return 0; 3225264e6351SChuck Lever out_overflow: 3226264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3227264e6351SChuck Lever return -EIO; 3228264e6351SChuck Lever } 3229264e6351SChuck Lever 32301da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 32311da177e4SLinus Torvalds { 32328687b63aSAl Viro __be32 *p; 3233409924e4STrond Myklebust int ret = 0; 32341da177e4SLinus Torvalds 32351da177e4SLinus Torvalds *change = 0; 32361da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 32371da177e4SLinus Torvalds return -EIO; 32381da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3239c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3240c0eae66eSBenny Halevy if (unlikely(!p)) 3241c0eae66eSBenny Halevy goto out_overflow; 3242cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 32431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3244409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 32451da177e4SLinus Torvalds } 32463110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32471da177e4SLinus Torvalds (unsigned long long)*change); 3248409924e4STrond Myklebust return ret; 3249c0eae66eSBenny Halevy out_overflow: 3250c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3251c0eae66eSBenny Halevy return -EIO; 32521da177e4SLinus Torvalds } 32531da177e4SLinus Torvalds 32541da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32551da177e4SLinus Torvalds { 32568687b63aSAl Viro __be32 *p; 3257409924e4STrond Myklebust int ret = 0; 32581da177e4SLinus Torvalds 32591da177e4SLinus Torvalds *size = 0; 32601da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32611da177e4SLinus Torvalds return -EIO; 32621da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3263c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3264c0eae66eSBenny Halevy if (unlikely(!p)) 3265c0eae66eSBenny Halevy goto out_overflow; 3266cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32671da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3268409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32691da177e4SLinus Torvalds } 32703110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3271409924e4STrond Myklebust return ret; 3272c0eae66eSBenny Halevy out_overflow: 3273c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3274c0eae66eSBenny Halevy return -EIO; 32751da177e4SLinus Torvalds } 32761da177e4SLinus Torvalds 32771da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32781da177e4SLinus Torvalds { 32798687b63aSAl Viro __be32 *p; 32801da177e4SLinus Torvalds 32811da177e4SLinus Torvalds *res = 0; 32821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32831da177e4SLinus Torvalds return -EIO; 32841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3285c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3286c0eae66eSBenny Halevy if (unlikely(!p)) 3287c0eae66eSBenny Halevy goto out_overflow; 3288cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32901da177e4SLinus Torvalds } 32913110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32921da177e4SLinus Torvalds return 0; 3293c0eae66eSBenny Halevy out_overflow: 3294c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3295c0eae66eSBenny Halevy return -EIO; 32961da177e4SLinus Torvalds } 32971da177e4SLinus Torvalds 32981da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32991da177e4SLinus Torvalds { 33008687b63aSAl Viro __be32 *p; 33011da177e4SLinus Torvalds 33021da177e4SLinus Torvalds *res = 0; 33031da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 33041da177e4SLinus Torvalds return -EIO; 33051da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3306c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3307c0eae66eSBenny Halevy if (unlikely(!p)) 3308c0eae66eSBenny Halevy goto out_overflow; 3309cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33101da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33111da177e4SLinus Torvalds } 33123110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33131da177e4SLinus Torvalds return 0; 3314c0eae66eSBenny Halevy out_overflow: 3315c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3316c0eae66eSBenny Halevy return -EIO; 33171da177e4SLinus Torvalds } 33181da177e4SLinus Torvalds 33198b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 33201da177e4SLinus Torvalds { 33218687b63aSAl Viro __be32 *p; 3322409924e4STrond Myklebust int ret = 0; 33231da177e4SLinus Torvalds 33241da177e4SLinus Torvalds fsid->major = 0; 33251da177e4SLinus Torvalds fsid->minor = 0; 33261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 33271da177e4SLinus Torvalds return -EIO; 33281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3329c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3330c0eae66eSBenny Halevy if (unlikely(!p)) 3331c0eae66eSBenny Halevy goto out_overflow; 33323ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3333cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 33341da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3335409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 33361da177e4SLinus Torvalds } 33373110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 33381da177e4SLinus Torvalds (unsigned long long)fsid->major, 33391da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3340409924e4STrond Myklebust return ret; 3341c0eae66eSBenny Halevy out_overflow: 3342c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3343c0eae66eSBenny Halevy return -EIO; 33441da177e4SLinus Torvalds } 33451da177e4SLinus Torvalds 33461da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33471da177e4SLinus Torvalds { 33488687b63aSAl Viro __be32 *p; 33491da177e4SLinus Torvalds 33501da177e4SLinus Torvalds *res = 60; 33511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33521da177e4SLinus Torvalds return -EIO; 33531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3354c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3355c0eae66eSBenny Halevy if (unlikely(!p)) 3356c0eae66eSBenny Halevy goto out_overflow; 3357cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 33591da177e4SLinus Torvalds } 33603110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33611da177e4SLinus Torvalds return 0; 3362c0eae66eSBenny Halevy out_overflow: 3363c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3364c0eae66eSBenny Halevy return -EIO; 33651da177e4SLinus Torvalds } 33661da177e4SLinus Torvalds 3367ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3368ae42c70aSBryan Schumaker { 3369ae42c70aSBryan Schumaker __be32 *p; 3370ae42c70aSBryan Schumaker 3371ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3372ae42c70aSBryan Schumaker return -EIO; 3373ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3374ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3375ae42c70aSBryan Schumaker if (unlikely(!p)) 3376ae42c70aSBryan Schumaker goto out_overflow; 3377ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3378ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3379ae42c70aSBryan Schumaker } 3380ae42c70aSBryan Schumaker return 0; 3381ae42c70aSBryan Schumaker out_overflow: 3382ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3383ae42c70aSBryan Schumaker return -EIO; 3384ae42c70aSBryan Schumaker } 3385ae42c70aSBryan Schumaker 33868c61282fSKinglong Mee static int decode_attr_exclcreat_supported(struct xdr_stream *xdr, 33878c61282fSKinglong Mee uint32_t *bitmap, uint32_t *bitmask) 33888c61282fSKinglong Mee { 33898c61282fSKinglong Mee if (likely(bitmap[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT)) { 33908c61282fSKinglong Mee int ret; 33918c61282fSKinglong Mee ret = decode_attr_bitmap(xdr, bitmask); 33928c61282fSKinglong Mee if (unlikely(ret < 0)) 33938c61282fSKinglong Mee return ret; 33948c61282fSKinglong Mee bitmap[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT; 33958c61282fSKinglong Mee } else 33968c61282fSKinglong Mee bitmask[0] = bitmask[1] = bitmask[2] = 0; 33978c61282fSKinglong Mee dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 33988c61282fSKinglong Mee bitmask[0], bitmask[1], bitmask[2]); 33998c61282fSKinglong Mee return 0; 34008c61282fSKinglong Mee } 34018c61282fSKinglong Mee 3402ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3403ae42c70aSBryan Schumaker { 3404ae42c70aSBryan Schumaker __be32 *p; 3405ae42c70aSBryan Schumaker int len; 3406ae42c70aSBryan Schumaker 34077ad07353STrond Myklebust if (fh != NULL) 3408ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3409ae42c70aSBryan Schumaker 3410ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3411ae42c70aSBryan Schumaker return -EIO; 3412ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3413ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3414ae42c70aSBryan Schumaker if (unlikely(!p)) 3415ae42c70aSBryan Schumaker goto out_overflow; 3416ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3417ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3418ae42c70aSBryan Schumaker return -EIO; 3419ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3420ae42c70aSBryan Schumaker if (unlikely(!p)) 3421ae42c70aSBryan Schumaker goto out_overflow; 34227ad07353STrond Myklebust if (fh != NULL) { 3423ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 34247ad07353STrond Myklebust fh->size = len; 34257ad07353STrond Myklebust } 3426ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3427ae42c70aSBryan Schumaker } 3428ae42c70aSBryan Schumaker return 0; 3429ae42c70aSBryan Schumaker out_overflow: 3430ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3431ae42c70aSBryan Schumaker return -EIO; 3432ae42c70aSBryan Schumaker } 3433ae42c70aSBryan Schumaker 34341da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34351da177e4SLinus Torvalds { 34368687b63aSAl Viro __be32 *p; 34371da177e4SLinus Torvalds 3438a1800acaSMalahal Naineni *res = 0; 34391da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 34401da177e4SLinus Torvalds return -EIO; 34411da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3442c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3443c0eae66eSBenny Halevy if (unlikely(!p)) 3444c0eae66eSBenny Halevy goto out_overflow; 3445cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34461da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 34471da177e4SLinus Torvalds } 34483110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 34491da177e4SLinus Torvalds return 0; 3450c0eae66eSBenny Halevy out_overflow: 3451c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3452c0eae66eSBenny Halevy return -EIO; 34531da177e4SLinus Torvalds } 34541da177e4SLinus Torvalds 34551da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 34561da177e4SLinus Torvalds { 34578687b63aSAl Viro __be32 *p; 3458409924e4STrond Myklebust int ret = 0; 34591da177e4SLinus Torvalds 34601da177e4SLinus Torvalds *fileid = 0; 34611da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34621da177e4SLinus Torvalds return -EIO; 34631da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3464c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3465c0eae66eSBenny Halevy if (unlikely(!p)) 3466c0eae66eSBenny Halevy goto out_overflow; 3467cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34681da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3469409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34701da177e4SLinus Torvalds } 34713110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3472409924e4STrond Myklebust return ret; 3473c0eae66eSBenny Halevy out_overflow: 3474c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3475c0eae66eSBenny Halevy return -EIO; 34761da177e4SLinus Torvalds } 34771da177e4SLinus Torvalds 347899baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 347999baf625SManoj Naik { 34808687b63aSAl Viro __be32 *p; 3481409924e4STrond Myklebust int ret = 0; 348299baf625SManoj Naik 348399baf625SManoj Naik *fileid = 0; 348499baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 348599baf625SManoj Naik return -EIO; 348699baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3487c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3488c0eae66eSBenny Halevy if (unlikely(!p)) 3489c0eae66eSBenny Halevy goto out_overflow; 3490cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 349199baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 349228331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 349399baf625SManoj Naik } 34943110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3495409924e4STrond Myklebust return ret; 3496c0eae66eSBenny Halevy out_overflow: 3497c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3498c0eae66eSBenny Halevy return -EIO; 349999baf625SManoj Naik } 350099baf625SManoj Naik 35011da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35021da177e4SLinus Torvalds { 35038687b63aSAl Viro __be32 *p; 35041da177e4SLinus Torvalds int status = 0; 35051da177e4SLinus Torvalds 35061da177e4SLinus Torvalds *res = 0; 35071da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 35081da177e4SLinus Torvalds return -EIO; 35091da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3510c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3511c0eae66eSBenny Halevy if (unlikely(!p)) 3512c0eae66eSBenny Halevy goto out_overflow; 3513cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35141da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 35151da177e4SLinus Torvalds } 35163110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 35171da177e4SLinus Torvalds return status; 3518c0eae66eSBenny Halevy out_overflow: 3519c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3520c0eae66eSBenny Halevy return -EIO; 35211da177e4SLinus Torvalds } 35221da177e4SLinus Torvalds 35231da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35241da177e4SLinus Torvalds { 35258687b63aSAl Viro __be32 *p; 35261da177e4SLinus Torvalds int status = 0; 35271da177e4SLinus Torvalds 35281da177e4SLinus Torvalds *res = 0; 35291da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35301da177e4SLinus Torvalds return -EIO; 35311da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3532c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3533c0eae66eSBenny Halevy if (unlikely(!p)) 3534c0eae66eSBenny Halevy goto out_overflow; 3535cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35361da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35371da177e4SLinus Torvalds } 35383110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35391da177e4SLinus Torvalds return status; 3540c0eae66eSBenny Halevy out_overflow: 3541c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3542c0eae66eSBenny Halevy return -EIO; 35431da177e4SLinus Torvalds } 35441da177e4SLinus Torvalds 35451da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35461da177e4SLinus Torvalds { 35478687b63aSAl Viro __be32 *p; 35481da177e4SLinus Torvalds int status = 0; 35491da177e4SLinus Torvalds 35501da177e4SLinus Torvalds *res = 0; 35511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 35521da177e4SLinus Torvalds return -EIO; 35531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3554c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3555c0eae66eSBenny Halevy if (unlikely(!p)) 3556c0eae66eSBenny Halevy goto out_overflow; 3557cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 35591da177e4SLinus Torvalds } 35603110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 35611da177e4SLinus Torvalds return status; 3562c0eae66eSBenny Halevy out_overflow: 3563c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3564c0eae66eSBenny Halevy return -EIO; 35651da177e4SLinus Torvalds } 35661da177e4SLinus Torvalds 35677aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35687aaa0b3bSManoj Naik { 3569464ad6b1SChuck Lever u32 n; 35708687b63aSAl Viro __be32 *p; 35717aaa0b3bSManoj Naik int status = 0; 35727aaa0b3bSManoj Naik 3573c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3574c0eae66eSBenny Halevy if (unlikely(!p)) 3575c0eae66eSBenny Halevy goto out_overflow; 3576cccddf4fSBenny Halevy n = be32_to_cpup(p); 357733a43f28SAndy Adamson if (n == 0) 357833a43f28SAndy Adamson goto root_path; 357902a2976cSChuck Lever dprintk("pathname4: "); 3580809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3581809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3582809b426cSTrond Myklebust goto out_eio; 3583809b426cSTrond Myklebust } 3584809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 35857aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35867aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35877aaa0b3bSManoj Naik if (unlikely(status != 0)) 35887aaa0b3bSManoj Naik goto out_eio; 358995a13f7bSTrond Myklebust ifdebug (XDR) 359002a2976cSChuck Lever pr_cont("%s%.*s ", 359102a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 359202a2976cSChuck Lever component->len, component->data); 35937aaa0b3bSManoj Naik } 35947aaa0b3bSManoj Naik out: 35957aaa0b3bSManoj Naik return status; 359633a43f28SAndy Adamson root_path: 359733a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 359833a43f28SAndy Adamson path->ncomponents = 1; 359933a43f28SAndy Adamson path->components[0].len=0; 360033a43f28SAndy Adamson path->components[0].data=NULL; 360102a2976cSChuck Lever dprintk("pathname4: /\n"); 360233a43f28SAndy Adamson goto out; 36037aaa0b3bSManoj Naik out_eio: 36047aaa0b3bSManoj Naik dprintk(" status %d", status); 36057aaa0b3bSManoj Naik status = -EIO; 36067aaa0b3bSManoj Naik goto out; 3607c0eae66eSBenny Halevy out_overflow: 3608c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3609c0eae66eSBenny Halevy return -EIO; 36107aaa0b3bSManoj Naik } 36117aaa0b3bSManoj Naik 36127aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3613683b57b4STrond Myklebust { 3614683b57b4STrond Myklebust int n; 36158687b63aSAl Viro __be32 *p; 3616683b57b4STrond Myklebust int status = -EIO; 3617683b57b4STrond Myklebust 3618683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3619683b57b4STrond Myklebust goto out; 3620683b57b4STrond Myklebust status = 0; 3621683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3622683b57b4STrond Myklebust goto out; 3623f54423a1SKinglong Mee bitmap[0] &= ~FATTR4_WORD0_FS_LOCATIONS; 36248b7e3f49STrond Myklebust status = -EIO; 36258b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36268b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36278b7e3f49STrond Myklebust goto out; 362802a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 36297aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3630683b57b4STrond Myklebust if (unlikely(status != 0)) 3631683b57b4STrond Myklebust goto out; 3632c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3633c0eae66eSBenny Halevy if (unlikely(!p)) 3634c0eae66eSBenny Halevy goto out_overflow; 3635cccddf4fSBenny Halevy n = be32_to_cpup(p); 3636683b57b4STrond Myklebust if (n <= 0) 3637683b57b4STrond Myklebust goto out_eio; 3638809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3639464ad6b1SChuck Lever u32 m; 3640809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3641683b57b4STrond Myklebust 3642809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3643809b426cSTrond Myklebust break; 3644809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3645c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3646c0eae66eSBenny Halevy if (unlikely(!p)) 3647c0eae66eSBenny Halevy goto out_overflow; 3648cccddf4fSBenny Halevy m = be32_to_cpup(p); 36497aaa0b3bSManoj Naik 365002a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3651809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3652809b426cSTrond Myklebust struct nfs4_string *server; 3653809b426cSTrond Myklebust 3654809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3655464ad6b1SChuck Lever unsigned int i; 3656464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3657464ad6b1SChuck Lever "returned for location %u\n", 36583110ff80SHarvey Harrison __func__, 3659464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3660464ad6b1SChuck Lever m, res->nlocations); 36617aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36622e42c3e2STrond Myklebust unsigned int len; 36637aaa0b3bSManoj Naik char *data; 36647aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3665683b57b4STrond Myklebust if (unlikely(status != 0)) 3666683b57b4STrond Myklebust goto out_eio; 36677aaa0b3bSManoj Naik } 3668809b426cSTrond Myklebust break; 36697aaa0b3bSManoj Naik } 3670809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3671809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3672809b426cSTrond Myklebust if (unlikely(status != 0)) 3673809b426cSTrond Myklebust goto out_eio; 3674809b426cSTrond Myklebust dprintk("%s ", server->data); 36757aaa0b3bSManoj Naik } 36767aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36777aaa0b3bSManoj Naik if (unlikely(status != 0)) 36787aaa0b3bSManoj Naik goto out_eio; 3679683b57b4STrond Myklebust } 3680409924e4STrond Myklebust if (res->nlocations != 0) 368181934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3682683b57b4STrond Myklebust out: 36833110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3684683b57b4STrond Myklebust return status; 3685c0eae66eSBenny Halevy out_overflow: 3686c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3687683b57b4STrond Myklebust out_eio: 3688683b57b4STrond Myklebust status = -EIO; 3689683b57b4STrond Myklebust goto out; 3690683b57b4STrond Myklebust } 3691683b57b4STrond Myklebust 36921da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36931da177e4SLinus Torvalds { 36948687b63aSAl Viro __be32 *p; 36951da177e4SLinus Torvalds int status = 0; 36961da177e4SLinus Torvalds 36971da177e4SLinus Torvalds *res = 0; 36981da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36991da177e4SLinus Torvalds return -EIO; 37001da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3701c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3702c0eae66eSBenny Halevy if (unlikely(!p)) 3703c0eae66eSBenny Halevy goto out_overflow; 3704cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 37051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 37061da177e4SLinus Torvalds } 37073110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 37081da177e4SLinus Torvalds return status; 3709c0eae66eSBenny Halevy out_overflow: 3710c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3711c0eae66eSBenny Halevy return -EIO; 37121da177e4SLinus Torvalds } 37131da177e4SLinus Torvalds 37141da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 37151da177e4SLinus Torvalds { 37168687b63aSAl Viro __be32 *p; 37171da177e4SLinus Torvalds int status = 0; 37181da177e4SLinus Torvalds 37191da177e4SLinus Torvalds *maxlink = 1; 37201da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 37211da177e4SLinus Torvalds return -EIO; 37221da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3723c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3724c0eae66eSBenny Halevy if (unlikely(!p)) 3725c0eae66eSBenny Halevy goto out_overflow; 3726cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37281da177e4SLinus Torvalds } 37293110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37301da177e4SLinus Torvalds return status; 3731c0eae66eSBenny Halevy out_overflow: 3732c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3733c0eae66eSBenny Halevy return -EIO; 37341da177e4SLinus Torvalds } 37351da177e4SLinus Torvalds 37361da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37371da177e4SLinus Torvalds { 37388687b63aSAl Viro __be32 *p; 37391da177e4SLinus Torvalds int status = 0; 37401da177e4SLinus Torvalds 37411da177e4SLinus Torvalds *maxname = 1024; 37421da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37431da177e4SLinus Torvalds return -EIO; 37441da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3745c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3746c0eae66eSBenny Halevy if (unlikely(!p)) 3747c0eae66eSBenny Halevy goto out_overflow; 3748cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37491da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37501da177e4SLinus Torvalds } 37513110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 37521da177e4SLinus Torvalds return status; 3753c0eae66eSBenny Halevy out_overflow: 3754c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3755c0eae66eSBenny Halevy return -EIO; 37561da177e4SLinus Torvalds } 37571da177e4SLinus Torvalds 37581da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37591da177e4SLinus Torvalds { 37608687b63aSAl Viro __be32 *p; 37611da177e4SLinus Torvalds int status = 0; 37621da177e4SLinus Torvalds 37631da177e4SLinus Torvalds *res = 1024; 37641da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 37651da177e4SLinus Torvalds return -EIO; 37661da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37671da177e4SLinus Torvalds uint64_t maxread; 3768c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3769c0eae66eSBenny Halevy if (unlikely(!p)) 3770c0eae66eSBenny Halevy goto out_overflow; 3771cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37721da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37731da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37741da177e4SLinus Torvalds *res = (uint32_t)maxread; 37751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37761da177e4SLinus Torvalds } 37773110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37781da177e4SLinus Torvalds return status; 3779c0eae66eSBenny Halevy out_overflow: 3780c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3781c0eae66eSBenny Halevy return -EIO; 37821da177e4SLinus Torvalds } 37831da177e4SLinus Torvalds 37841da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37851da177e4SLinus Torvalds { 37868687b63aSAl Viro __be32 *p; 37871da177e4SLinus Torvalds int status = 0; 37881da177e4SLinus Torvalds 37891da177e4SLinus Torvalds *res = 1024; 37901da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37911da177e4SLinus Torvalds return -EIO; 37921da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37931da177e4SLinus Torvalds uint64_t maxwrite; 3794c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3795c0eae66eSBenny Halevy if (unlikely(!p)) 3796c0eae66eSBenny Halevy goto out_overflow; 3797cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37981da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37991da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 38001da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 38011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 38021da177e4SLinus Torvalds } 38033110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 38041da177e4SLinus Torvalds return status; 3805c0eae66eSBenny Halevy out_overflow: 3806c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3807c0eae66eSBenny Halevy return -EIO; 38081da177e4SLinus Torvalds } 38091da177e4SLinus Torvalds 3810bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 38111da177e4SLinus Torvalds { 3812bca79478STrond Myklebust uint32_t tmp; 38138687b63aSAl Viro __be32 *p; 3814409924e4STrond Myklebust int ret = 0; 38151da177e4SLinus Torvalds 38161da177e4SLinus Torvalds *mode = 0; 38171da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38181da177e4SLinus Torvalds return -EIO; 38191da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3820c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3821c0eae66eSBenny Halevy if (unlikely(!p)) 3822c0eae66eSBenny Halevy goto out_overflow; 3823cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3824bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3826409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38271da177e4SLinus Torvalds } 38283110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3829409924e4STrond Myklebust return ret; 3830c0eae66eSBenny Halevy out_overflow: 3831c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3832c0eae66eSBenny Halevy return -EIO; 38331da177e4SLinus Torvalds } 38341da177e4SLinus Torvalds 38351da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38361da177e4SLinus Torvalds { 38378687b63aSAl Viro __be32 *p; 3838409924e4STrond Myklebust int ret = 0; 38391da177e4SLinus Torvalds 38401da177e4SLinus Torvalds *nlink = 1; 38411da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38421da177e4SLinus Torvalds return -EIO; 38431da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3844c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3845c0eae66eSBenny Halevy if (unlikely(!p)) 3846c0eae66eSBenny Halevy goto out_overflow; 3847cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38481da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3849409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38501da177e4SLinus Torvalds } 38513110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3852409924e4STrond Myklebust return ret; 3853c0eae66eSBenny Halevy out_overflow: 3854c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3855c0eae66eSBenny Halevy return -EIO; 38561da177e4SLinus Torvalds } 38571da177e4SLinus Torvalds 385880e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3859e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 38606926afd1STrond Myklebust struct nfs4_string *owner_name) 38611da177e4SLinus Torvalds { 38628687b63aSAl Viro uint32_t len; 38638687b63aSAl Viro __be32 *p; 3864409924e4STrond Myklebust int ret = 0; 38651da177e4SLinus Torvalds 3866e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 38671da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38681da177e4SLinus Torvalds return -EIO; 38691da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3870c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3871c0eae66eSBenny Halevy if (unlikely(!p)) 3872c0eae66eSBenny Halevy goto out_overflow; 3873cccddf4fSBenny Halevy len = be32_to_cpup(p); 3874c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3875c0eae66eSBenny Halevy if (unlikely(!p)) 3876c0eae66eSBenny Halevy goto out_overflow; 38776926afd1STrond Myklebust if (owner_name != NULL) { 38786926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38796926afd1STrond Myklebust if (owner_name->data != NULL) { 38806926afd1STrond Myklebust owner_name->len = len; 38816926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38826926afd1STrond Myklebust } 388380e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3884e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3885409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3886409924e4STrond Myklebust else 38871da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38883110ff80SHarvey Harrison __func__); 38891da177e4SLinus Torvalds } else 3890fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38913110ff80SHarvey Harrison __func__, len); 38921da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38931da177e4SLinus Torvalds } 3894e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3895409924e4STrond Myklebust return ret; 3896c0eae66eSBenny Halevy out_overflow: 3897c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3898c0eae66eSBenny Halevy return -EIO; 38991da177e4SLinus Torvalds } 39001da177e4SLinus Torvalds 390180e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3902e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 39036926afd1STrond Myklebust struct nfs4_string *group_name) 39041da177e4SLinus Torvalds { 39058687b63aSAl Viro uint32_t len; 39068687b63aSAl Viro __be32 *p; 3907409924e4STrond Myklebust int ret = 0; 39081da177e4SLinus Torvalds 3909e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 39101da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 39111da177e4SLinus Torvalds return -EIO; 39121da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3913c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3914c0eae66eSBenny Halevy if (unlikely(!p)) 3915c0eae66eSBenny Halevy goto out_overflow; 3916cccddf4fSBenny Halevy len = be32_to_cpup(p); 3917c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3918c0eae66eSBenny Halevy if (unlikely(!p)) 3919c0eae66eSBenny Halevy goto out_overflow; 39206926afd1STrond Myklebust if (group_name != NULL) { 39216926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 39226926afd1STrond Myklebust if (group_name->data != NULL) { 39236926afd1STrond Myklebust group_name->len = len; 39246926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 39256926afd1STrond Myklebust } 392680e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3927e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3928409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3929409924e4STrond Myklebust else 39301da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 39313110ff80SHarvey Harrison __func__); 39321da177e4SLinus Torvalds } else 3933fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39343110ff80SHarvey Harrison __func__, len); 39351da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 39361da177e4SLinus Torvalds } 3937e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3938409924e4STrond Myklebust return ret; 3939c0eae66eSBenny Halevy out_overflow: 3940c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3941c0eae66eSBenny Halevy return -EIO; 39421da177e4SLinus Torvalds } 39431da177e4SLinus Torvalds 39441da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39451da177e4SLinus Torvalds { 39468687b63aSAl Viro uint32_t major = 0, minor = 0; 39478687b63aSAl Viro __be32 *p; 3948409924e4STrond Myklebust int ret = 0; 39491da177e4SLinus Torvalds 39501da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39511da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39521da177e4SLinus Torvalds return -EIO; 39531da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39541da177e4SLinus Torvalds dev_t tmp; 39551da177e4SLinus Torvalds 3956c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3957c0eae66eSBenny Halevy if (unlikely(!p)) 3958c0eae66eSBenny Halevy goto out_overflow; 39596f723f77SBenny Halevy major = be32_to_cpup(p++); 3960cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39611da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39621da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39631da177e4SLinus Torvalds *rdev = tmp; 39641da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3965409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39661da177e4SLinus Torvalds } 39673110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3968409924e4STrond Myklebust return ret; 3969c0eae66eSBenny Halevy out_overflow: 3970c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3971c0eae66eSBenny Halevy return -EIO; 39721da177e4SLinus Torvalds } 39731da177e4SLinus Torvalds 39741da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39751da177e4SLinus Torvalds { 39768687b63aSAl Viro __be32 *p; 39771da177e4SLinus Torvalds int status = 0; 39781da177e4SLinus Torvalds 39791da177e4SLinus Torvalds *res = 0; 39801da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39811da177e4SLinus Torvalds return -EIO; 39821da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3983c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3984c0eae66eSBenny Halevy if (unlikely(!p)) 3985c0eae66eSBenny Halevy goto out_overflow; 3986cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39871da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39881da177e4SLinus Torvalds } 39893110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39901da177e4SLinus Torvalds return status; 3991c0eae66eSBenny Halevy out_overflow: 3992c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3993c0eae66eSBenny Halevy return -EIO; 39941da177e4SLinus Torvalds } 39951da177e4SLinus Torvalds 39961da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39971da177e4SLinus Torvalds { 39988687b63aSAl Viro __be32 *p; 39991da177e4SLinus Torvalds int status = 0; 40001da177e4SLinus Torvalds 40011da177e4SLinus Torvalds *res = 0; 40021da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 40031da177e4SLinus Torvalds return -EIO; 40041da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 4005c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4006c0eae66eSBenny Halevy if (unlikely(!p)) 4007c0eae66eSBenny Halevy goto out_overflow; 4008cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40091da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 40101da177e4SLinus Torvalds } 40113110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 40121da177e4SLinus Torvalds return status; 4013c0eae66eSBenny Halevy out_overflow: 4014c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4015c0eae66eSBenny Halevy return -EIO; 40161da177e4SLinus Torvalds } 40171da177e4SLinus Torvalds 40181da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40191da177e4SLinus Torvalds { 40208687b63aSAl Viro __be32 *p; 40211da177e4SLinus Torvalds int status = 0; 40221da177e4SLinus Torvalds 40231da177e4SLinus Torvalds *res = 0; 40241da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40251da177e4SLinus Torvalds return -EIO; 40261da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4027c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4028c0eae66eSBenny Halevy if (unlikely(!p)) 4029c0eae66eSBenny Halevy goto out_overflow; 4030cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40311da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40321da177e4SLinus Torvalds } 40333110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40341da177e4SLinus Torvalds return status; 4035c0eae66eSBenny Halevy out_overflow: 4036c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4037c0eae66eSBenny Halevy return -EIO; 40381da177e4SLinus Torvalds } 40391da177e4SLinus Torvalds 40401da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40411da177e4SLinus Torvalds { 40428687b63aSAl Viro __be32 *p; 4043409924e4STrond Myklebust int ret = 0; 40441da177e4SLinus Torvalds 40451da177e4SLinus Torvalds *used = 0; 40461da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40471da177e4SLinus Torvalds return -EIO; 40481da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4049c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4050c0eae66eSBenny Halevy if (unlikely(!p)) 4051c0eae66eSBenny Halevy goto out_overflow; 4052cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40531da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4054409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40551da177e4SLinus Torvalds } 40563110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40571da177e4SLinus Torvalds (unsigned long long)*used); 4058409924e4STrond Myklebust return ret; 4059c0eae66eSBenny Halevy out_overflow: 4060c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4061c0eae66eSBenny Halevy return -EIO; 40621da177e4SLinus Torvalds } 40631da177e4SLinus Torvalds 40641da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40651da177e4SLinus Torvalds { 40668687b63aSAl Viro __be32 *p; 40671da177e4SLinus Torvalds uint64_t sec; 40681da177e4SLinus Torvalds uint32_t nsec; 40691da177e4SLinus Torvalds 4070c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4071c0eae66eSBenny Halevy if (unlikely(!p)) 4072c0eae66eSBenny Halevy goto out_overflow; 40733ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4074cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40751da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40761da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40771da177e4SLinus Torvalds return 0; 4078c0eae66eSBenny Halevy out_overflow: 4079c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4080c0eae66eSBenny Halevy return -EIO; 40811da177e4SLinus Torvalds } 40821da177e4SLinus Torvalds 40831da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40841da177e4SLinus Torvalds { 40851da177e4SLinus Torvalds int status = 0; 40861da177e4SLinus Torvalds 40871da177e4SLinus Torvalds time->tv_sec = 0; 40881da177e4SLinus Torvalds time->tv_nsec = 0; 40891da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40901da177e4SLinus Torvalds return -EIO; 40911da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40921da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4093409924e4STrond Myklebust if (status == 0) 4094409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40951da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40961da177e4SLinus Torvalds } 40973110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40981da177e4SLinus Torvalds return status; 40991da177e4SLinus Torvalds } 41001da177e4SLinus Torvalds 41011da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41021da177e4SLinus Torvalds { 41031da177e4SLinus Torvalds int status = 0; 41041da177e4SLinus Torvalds 41051da177e4SLinus Torvalds time->tv_sec = 0; 41061da177e4SLinus Torvalds time->tv_nsec = 0; 41071da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 41081da177e4SLinus Torvalds return -EIO; 41091da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 41101da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4111409924e4STrond Myklebust if (status == 0) 4112409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 41131da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 41141da177e4SLinus Torvalds } 41153110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 41161da177e4SLinus Torvalds return status; 41171da177e4SLinus Torvalds } 41181da177e4SLinus Torvalds 411955b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 412055b6e774SRicardo Labiaga struct timespec *time) 412155b6e774SRicardo Labiaga { 412255b6e774SRicardo Labiaga int status = 0; 412355b6e774SRicardo Labiaga 412455b6e774SRicardo Labiaga time->tv_sec = 0; 412555b6e774SRicardo Labiaga time->tv_nsec = 0; 412655b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 412755b6e774SRicardo Labiaga return -EIO; 412855b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 412955b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 413055b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 413155b6e774SRicardo Labiaga } 413255b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 413355b6e774SRicardo Labiaga (long)time->tv_nsec); 413455b6e774SRicardo Labiaga return status; 413555b6e774SRicardo Labiaga } 413655b6e774SRicardo Labiaga 4137aa9c2669SDavid Quigley static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap, 4138aa9c2669SDavid Quigley struct nfs4_label *label) 4139aa9c2669SDavid Quigley { 4140aa9c2669SDavid Quigley uint32_t pi = 0; 4141aa9c2669SDavid Quigley uint32_t lfs = 0; 4142aa9c2669SDavid Quigley __u32 len; 4143aa9c2669SDavid Quigley __be32 *p; 4144aa9c2669SDavid Quigley int status = 0; 4145aa9c2669SDavid Quigley 4146aa9c2669SDavid Quigley if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U))) 4147aa9c2669SDavid Quigley return -EIO; 4148aa9c2669SDavid Quigley if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) { 4149aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4150aa9c2669SDavid Quigley if (unlikely(!p)) 4151aa9c2669SDavid Quigley goto out_overflow; 4152aa9c2669SDavid Quigley lfs = be32_to_cpup(p++); 4153aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4154aa9c2669SDavid Quigley if (unlikely(!p)) 4155aa9c2669SDavid Quigley goto out_overflow; 4156aa9c2669SDavid Quigley pi = be32_to_cpup(p++); 4157aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4158aa9c2669SDavid Quigley if (unlikely(!p)) 4159aa9c2669SDavid Quigley goto out_overflow; 4160aa9c2669SDavid Quigley len = be32_to_cpup(p++); 4161aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, len); 4162aa9c2669SDavid Quigley if (unlikely(!p)) 4163aa9c2669SDavid Quigley goto out_overflow; 4164aa9c2669SDavid Quigley if (len < NFS4_MAXLABELLEN) { 4165aa9c2669SDavid Quigley if (label) { 4166aa9c2669SDavid Quigley memcpy(label->label, p, len); 4167aa9c2669SDavid Quigley label->len = len; 4168aa9c2669SDavid Quigley label->pi = pi; 4169aa9c2669SDavid Quigley label->lfs = lfs; 4170aa9c2669SDavid Quigley status = NFS_ATTR_FATTR_V4_SECURITY_LABEL; 4171aa9c2669SDavid Quigley } 4172aa9c2669SDavid Quigley bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL; 4173aa9c2669SDavid Quigley } else 4174aa9c2669SDavid Quigley printk(KERN_WARNING "%s: label too long (%u)!\n", 4175aa9c2669SDavid Quigley __func__, len); 4176aa9c2669SDavid Quigley } 4177aa9c2669SDavid Quigley if (label && label->label) 4178aa9c2669SDavid Quigley dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__, 4179aa9c2669SDavid Quigley (char *)label->label, label->len, label->pi, label->lfs); 4180aa9c2669SDavid Quigley return status; 4181aa9c2669SDavid Quigley 4182aa9c2669SDavid Quigley out_overflow: 4183aa9c2669SDavid Quigley print_overflow_msg(__func__, xdr); 4184aa9c2669SDavid Quigley return -EIO; 4185aa9c2669SDavid Quigley } 4186aa9c2669SDavid Quigley 41871da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41881da177e4SLinus Torvalds { 41891da177e4SLinus Torvalds int status = 0; 41901da177e4SLinus Torvalds 41911da177e4SLinus Torvalds time->tv_sec = 0; 41921da177e4SLinus Torvalds time->tv_nsec = 0; 41931da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 41941da177e4SLinus Torvalds return -EIO; 41951da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 41961da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4197409924e4STrond Myklebust if (status == 0) 4198409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 41991da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 42001da177e4SLinus Torvalds } 42013110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 42021da177e4SLinus Torvalds return status; 42031da177e4SLinus Torvalds } 42041da177e4SLinus Torvalds 4205256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 42061da177e4SLinus Torvalds { 42071da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4208256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 42091da177e4SLinus Torvalds 42101da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4211fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4212fe82a183SChuck Lever "%u %c %u\n", 42133110ff80SHarvey Harrison __func__, 42141da177e4SLinus Torvalds attrwords << 2, 42151da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 42161da177e4SLinus Torvalds nwords << 2); 42171da177e4SLinus Torvalds return -EIO; 42181da177e4SLinus Torvalds } 42191da177e4SLinus Torvalds return 0; 42201da177e4SLinus Torvalds } 42211da177e4SLinus Torvalds 42221da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42231da177e4SLinus Torvalds { 42248687b63aSAl Viro __be32 *p; 42251da177e4SLinus Torvalds 4226c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4227c0eae66eSBenny Halevy if (unlikely(!p)) 4228c0eae66eSBenny Halevy goto out_overflow; 42296f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 42303ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4231cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 42321da177e4SLinus Torvalds return 0; 4233c0eae66eSBenny Halevy out_overflow: 4234c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4235c0eae66eSBenny Halevy return -EIO; 42361da177e4SLinus Torvalds } 42371da177e4SLinus Torvalds 42386168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 42391da177e4SLinus Torvalds { 42408687b63aSAl Viro __be32 *p; 42411da177e4SLinus Torvalds uint32_t supp, acc; 42421da177e4SLinus Torvalds int status; 42431da177e4SLinus Torvalds 42441da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 42451da177e4SLinus Torvalds if (status) 42461da177e4SLinus Torvalds return status; 4247c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4248c0eae66eSBenny Halevy if (unlikely(!p)) 4249c0eae66eSBenny Halevy goto out_overflow; 42506f723f77SBenny Halevy supp = be32_to_cpup(p++); 4251cccddf4fSBenny Halevy acc = be32_to_cpup(p); 42526168f62cSWeston Andros Adamson *supported = supp; 42536168f62cSWeston Andros Adamson *access = acc; 42541da177e4SLinus Torvalds return 0; 4255c0eae66eSBenny Halevy out_overflow: 4256c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4257c0eae66eSBenny Halevy return -EIO; 42581da177e4SLinus Torvalds } 42591da177e4SLinus Torvalds 426007d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 42611da177e4SLinus Torvalds { 42628687b63aSAl Viro __be32 *p; 426307d30434SBenny Halevy 426407d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 426507d30434SBenny Halevy if (likely(p)) { 426607d30434SBenny Halevy memcpy(buf, p, len); 426707d30434SBenny Halevy return 0; 426807d30434SBenny Halevy } 426907d30434SBenny Halevy print_overflow_msg(__func__, xdr); 427007d30434SBenny Halevy return -EIO; 427107d30434SBenny Halevy } 427207d30434SBenny Halevy 427307d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 427407d30434SBenny Halevy { 42752d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 42761da177e4SLinus Torvalds } 42771da177e4SLinus Torvalds 427893b717fdSTrond Myklebust static int decode_open_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 427993b717fdSTrond Myklebust { 428093b717fdSTrond Myklebust stateid->type = NFS4_OPEN_STATEID_TYPE; 428193b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 428293b717fdSTrond Myklebust } 428393b717fdSTrond Myklebust 428493b717fdSTrond Myklebust static int decode_lock_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 428593b717fdSTrond Myklebust { 428693b717fdSTrond Myklebust stateid->type = NFS4_LOCK_STATEID_TYPE; 428793b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 428893b717fdSTrond Myklebust } 428993b717fdSTrond Myklebust 429093b717fdSTrond Myklebust static int decode_delegation_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 429193b717fdSTrond Myklebust { 429293b717fdSTrond Myklebust stateid->type = NFS4_DELEGATION_STATEID_TYPE; 429393b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 429493b717fdSTrond Myklebust } 429593b717fdSTrond Myklebust 42961da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 42971da177e4SLinus Torvalds { 42981da177e4SLinus Torvalds int status; 42991da177e4SLinus Torvalds 43001da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4301c1d51931STrond Myklebust if (status != -EIO) 4302c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 430307d30434SBenny Halevy if (!status) 430493b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 43051da177e4SLinus Torvalds return status; 43061da177e4SLinus Torvalds } 43071da177e4SLinus Torvalds 4308db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4309db942bbdSBenny Halevy { 4310cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 43111da177e4SLinus Torvalds } 43121da177e4SLinus Torvalds 43132f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 43142f2c63bcSTrond Myklebust { 43152f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 43162f2c63bcSTrond Myklebust } 43172f2c63bcSTrond Myklebust 43180b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 43191da177e4SLinus Torvalds { 43201da177e4SLinus Torvalds int status; 43211da177e4SLinus Torvalds 43221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4323db942bbdSBenny Halevy if (!status) 43242f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 43251da177e4SLinus Torvalds return status; 43261da177e4SLinus Torvalds } 43271da177e4SLinus Torvalds 43281da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43291da177e4SLinus Torvalds { 43308687b63aSAl Viro __be32 *p; 43311da177e4SLinus Torvalds uint32_t bmlen; 43321da177e4SLinus Torvalds int status; 43331da177e4SLinus Torvalds 43341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 43351da177e4SLinus Torvalds if (status) 43361da177e4SLinus Torvalds return status; 43371da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 43381da177e4SLinus Torvalds return status; 4339c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4340c0eae66eSBenny Halevy if (unlikely(!p)) 4341c0eae66eSBenny Halevy goto out_overflow; 4342cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4343c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4344c0eae66eSBenny Halevy if (likely(p)) 43451da177e4SLinus Torvalds return 0; 4346c0eae66eSBenny Halevy out_overflow: 4347c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4348c0eae66eSBenny Halevy return -EIO; 43491da177e4SLinus Torvalds } 43501da177e4SLinus Torvalds 43511da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 43521da177e4SLinus Torvalds { 4353256e48bbSTrond Myklebust unsigned int savep; 4354dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43551da177e4SLinus Torvalds int status; 43561da177e4SLinus Torvalds 43571da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43581da177e4SLinus Torvalds goto xdr_error; 43591da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43601da177e4SLinus Torvalds goto xdr_error; 43611da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43621da177e4SLinus Torvalds goto xdr_error; 43631da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 43641da177e4SLinus Torvalds goto xdr_error; 4365264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4366264e6351SChuck Lever &res->fh_expire_type)) != 0) 4367264e6351SChuck Lever goto xdr_error; 43681da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 43691da177e4SLinus Torvalds goto xdr_error; 43701da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 43711da177e4SLinus Torvalds goto xdr_error; 43721da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 43731da177e4SLinus Torvalds goto xdr_error; 43748c61282fSKinglong Mee if ((status = decode_attr_exclcreat_supported(xdr, bitmap, 43758c61282fSKinglong Mee res->exclcreat_bitmask)) != 0) 43768c61282fSKinglong Mee goto xdr_error; 43771da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43781da177e4SLinus Torvalds xdr_error: 43793110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43801da177e4SLinus Torvalds return status; 43811da177e4SLinus Torvalds } 43821da177e4SLinus Torvalds 43831da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 43841da177e4SLinus Torvalds { 4385256e48bbSTrond Myklebust unsigned int savep; 4386dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43871da177e4SLinus Torvalds int status; 43881da177e4SLinus Torvalds 43891da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43901da177e4SLinus Torvalds goto xdr_error; 43911da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43921da177e4SLinus Torvalds goto xdr_error; 43931da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43941da177e4SLinus Torvalds goto xdr_error; 43951da177e4SLinus Torvalds 43961da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 43971da177e4SLinus Torvalds goto xdr_error; 43981da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 43991da177e4SLinus Torvalds goto xdr_error; 44001da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 44011da177e4SLinus Torvalds goto xdr_error; 44021ca843a2SAndreas Gruenbacher 44031ca843a2SAndreas Gruenbacher status = -EIO; 44041ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 44051ca843a2SAndreas Gruenbacher goto xdr_error; 44061ca843a2SAndreas Gruenbacher 44071da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 44081da177e4SLinus Torvalds goto xdr_error; 44091da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 44101da177e4SLinus Torvalds goto xdr_error; 44111da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 44121da177e4SLinus Torvalds goto xdr_error; 44131da177e4SLinus Torvalds 44141da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44151da177e4SLinus Torvalds xdr_error: 44163110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44171da177e4SLinus Torvalds return status; 44181da177e4SLinus Torvalds } 44191da177e4SLinus Torvalds 44201da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 44211da177e4SLinus Torvalds { 4422256e48bbSTrond Myklebust unsigned int savep; 4423dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 44241da177e4SLinus Torvalds int status; 44251da177e4SLinus Torvalds 44261da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 44271da177e4SLinus Torvalds goto xdr_error; 44281da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 44291da177e4SLinus Torvalds goto xdr_error; 44301da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 44311da177e4SLinus Torvalds goto xdr_error; 44321da177e4SLinus Torvalds 44331da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 44341da177e4SLinus Torvalds goto xdr_error; 44351da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 44361da177e4SLinus Torvalds goto xdr_error; 44371da177e4SLinus Torvalds 44381da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44391da177e4SLinus Torvalds xdr_error: 44403110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44411da177e4SLinus Torvalds return status; 44421da177e4SLinus Torvalds } 44431da177e4SLinus Torvalds 444488034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 444588034c3dSAndy Adamson uint32_t *bitmap, 444688034c3dSAndy Adamson uint64_t *res, 444788034c3dSAndy Adamson uint32_t hint_bit) 444888034c3dSAndy Adamson { 444988034c3dSAndy Adamson __be32 *p; 445088034c3dSAndy Adamson 445188034c3dSAndy Adamson *res = 0; 445288034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 445388034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 445488034c3dSAndy Adamson if (unlikely(!p)) 445588034c3dSAndy Adamson goto out_overflow; 445688034c3dSAndy Adamson xdr_decode_hyper(p, res); 445788034c3dSAndy Adamson } 445888034c3dSAndy Adamson return 0; 445988034c3dSAndy Adamson out_overflow: 446088034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 446188034c3dSAndy Adamson return -EIO; 446288034c3dSAndy Adamson } 446388034c3dSAndy Adamson 446488034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 446588034c3dSAndy Adamson struct nfs4_threshold *res) 446688034c3dSAndy Adamson { 4467256e48bbSTrond Myklebust __be32 *p; 4468256e48bbSTrond Myklebust unsigned int savep; 446988034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 447088034c3dSAndy Adamson int status; 447188034c3dSAndy Adamson 447288034c3dSAndy Adamson /* layout type */ 447388034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 447488034c3dSAndy Adamson if (unlikely(!p)) { 447588034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 447688034c3dSAndy Adamson return -EIO; 447788034c3dSAndy Adamson } 447888034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 447988034c3dSAndy Adamson 448088034c3dSAndy Adamson /* thi_hintset bitmap */ 448188034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 448288034c3dSAndy Adamson if (status < 0) 448388034c3dSAndy Adamson goto xdr_error; 448488034c3dSAndy Adamson 448588034c3dSAndy Adamson /* thi_hintlist length */ 448688034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 448788034c3dSAndy Adamson if (status < 0) 448888034c3dSAndy Adamson goto xdr_error; 448988034c3dSAndy Adamson /* thi_hintlist */ 449088034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 449188034c3dSAndy Adamson if (status < 0) 449288034c3dSAndy Adamson goto xdr_error; 449388034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 449488034c3dSAndy Adamson if (status < 0) 449588034c3dSAndy Adamson goto xdr_error; 449688034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 449788034c3dSAndy Adamson THRESHOLD_RD_IO); 449888034c3dSAndy Adamson if (status < 0) 449988034c3dSAndy Adamson goto xdr_error; 450088034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 450188034c3dSAndy Adamson THRESHOLD_WR_IO); 450288034c3dSAndy Adamson if (status < 0) 450388034c3dSAndy Adamson goto xdr_error; 450488034c3dSAndy Adamson 450588034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 450688034c3dSAndy Adamson res->bm = bitmap[0]; 450788034c3dSAndy Adamson 450888034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 450988034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 451088034c3dSAndy Adamson res->wr_io_sz); 451188034c3dSAndy Adamson xdr_error: 451288034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 451388034c3dSAndy Adamson return status; 451488034c3dSAndy Adamson } 451588034c3dSAndy Adamson 451688034c3dSAndy Adamson /* 451788034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 451888034c3dSAndy Adamson */ 451988034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 452088034c3dSAndy Adamson uint32_t *bitmap, 452188034c3dSAndy Adamson struct nfs4_threshold *res) 452288034c3dSAndy Adamson { 452388034c3dSAndy Adamson __be32 *p; 452488034c3dSAndy Adamson int status = 0; 452588034c3dSAndy Adamson uint32_t num; 452688034c3dSAndy Adamson 452788034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 452888034c3dSAndy Adamson return -EIO; 4529029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 45301549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 45311549210fSTrond Myklebust if (unlikely(res == NULL)) 45321549210fSTrond Myklebust return -EREMOTEIO; 453388034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 453488034c3dSAndy Adamson if (unlikely(!p)) 453588034c3dSAndy Adamson goto out_overflow; 453688034c3dSAndy Adamson num = be32_to_cpup(p); 453788034c3dSAndy Adamson if (num == 0) 453888034c3dSAndy Adamson return 0; 453988034c3dSAndy Adamson if (num > 1) 454088034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 454188034c3dSAndy Adamson "drivers per filesystem not supported\n", 454288034c3dSAndy Adamson __func__); 454388034c3dSAndy Adamson 454488034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4545029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 454688034c3dSAndy Adamson } 454788034c3dSAndy Adamson return status; 454888034c3dSAndy Adamson out_overflow: 454988034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 455088034c3dSAndy Adamson return -EIO; 455188034c3dSAndy Adamson } 455288034c3dSAndy Adamson 4553ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4554ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 4555aa9c2669SDavid Quigley struct nfs4_fs_locations *fs_loc, struct nfs4_label *label, 45566926afd1STrond Myklebust const struct nfs_server *server) 45571da177e4SLinus Torvalds { 4558bca79478STrond Myklebust int status; 4559bca79478STrond Myklebust umode_t fmode = 0; 4560ae42c70aSBryan Schumaker uint32_t type; 4561ee7b75fcSTrond Myklebust int32_t err; 45621da177e4SLinus Torvalds 4563f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4564f26c7a78STrond Myklebust if (status < 0) 45651da177e4SLinus Torvalds goto xdr_error; 4566409924e4STrond Myklebust fattr->mode = 0; 4567409924e4STrond Myklebust if (status != 0) { 4568409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4569409924e4STrond Myklebust fattr->valid |= status; 4570409924e4STrond Myklebust } 45711da177e4SLinus Torvalds 4572f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4573f26c7a78STrond Myklebust if (status < 0) 45741da177e4SLinus Torvalds goto xdr_error; 4575409924e4STrond Myklebust fattr->valid |= status; 4576f26c7a78STrond Myklebust 4577f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4578f26c7a78STrond Myklebust if (status < 0) 45791da177e4SLinus Torvalds goto xdr_error; 4580409924e4STrond Myklebust fattr->valid |= status; 4581f26c7a78STrond Myklebust 4582f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4583f26c7a78STrond Myklebust if (status < 0) 45841da177e4SLinus Torvalds goto xdr_error; 4585409924e4STrond Myklebust fattr->valid |= status; 4586f26c7a78STrond Myklebust 4587ee7b75fcSTrond Myklebust err = 0; 4588ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4589ae42c70aSBryan Schumaker if (status < 0) 4590ae42c70aSBryan Schumaker goto xdr_error; 4591ae42c70aSBryan Schumaker 4592ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4593ae42c70aSBryan Schumaker if (status < 0) 4594ae42c70aSBryan Schumaker goto xdr_error; 4595ae42c70aSBryan Schumaker 4596f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4597f26c7a78STrond Myklebust if (status < 0) 45981da177e4SLinus Torvalds goto xdr_error; 4599409924e4STrond Myklebust fattr->valid |= status; 4600f26c7a78STrond Myklebust 46018b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4602f26c7a78STrond Myklebust if (status < 0) 4603683b57b4STrond Myklebust goto xdr_error; 4604409924e4STrond Myklebust fattr->valid |= status; 4605f26c7a78STrond Myklebust 46061ca843a2SAndreas Gruenbacher status = -EIO; 46071ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 46081ca843a2SAndreas Gruenbacher goto xdr_error; 46091ca843a2SAndreas Gruenbacher 4610f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4611f26c7a78STrond Myklebust if (status < 0) 46121da177e4SLinus Torvalds goto xdr_error; 4613409924e4STrond Myklebust if (status != 0) { 46141da177e4SLinus Torvalds fattr->mode |= fmode; 4615409924e4STrond Myklebust fattr->valid |= status; 4616409924e4STrond Myklebust } 4617f26c7a78STrond Myklebust 4618f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4619f26c7a78STrond Myklebust if (status < 0) 46201da177e4SLinus Torvalds goto xdr_error; 4621409924e4STrond Myklebust fattr->valid |= status; 4622f26c7a78STrond Myklebust 46236926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4624f26c7a78STrond Myklebust if (status < 0) 46251da177e4SLinus Torvalds goto xdr_error; 4626409924e4STrond Myklebust fattr->valid |= status; 4627f26c7a78STrond Myklebust 46286926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4629f26c7a78STrond Myklebust if (status < 0) 46301da177e4SLinus Torvalds goto xdr_error; 4631409924e4STrond Myklebust fattr->valid |= status; 4632f26c7a78STrond Myklebust 4633f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4634f26c7a78STrond Myklebust if (status < 0) 46351da177e4SLinus Torvalds goto xdr_error; 4636409924e4STrond Myklebust fattr->valid |= status; 4637f26c7a78STrond Myklebust 4638f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4639f26c7a78STrond Myklebust if (status < 0) 46401da177e4SLinus Torvalds goto xdr_error; 4641409924e4STrond Myklebust fattr->valid |= status; 4642f26c7a78STrond Myklebust 4643f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4644f26c7a78STrond Myklebust if (status < 0) 46451da177e4SLinus Torvalds goto xdr_error; 4646409924e4STrond Myklebust fattr->valid |= status; 4647f26c7a78STrond Myklebust 4648f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4649f26c7a78STrond Myklebust if (status < 0) 46501da177e4SLinus Torvalds goto xdr_error; 4651409924e4STrond Myklebust fattr->valid |= status; 4652f26c7a78STrond Myklebust 4653f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4654f26c7a78STrond Myklebust if (status < 0) 46551da177e4SLinus Torvalds goto xdr_error; 4656409924e4STrond Myklebust fattr->valid |= status; 4657f26c7a78STrond Myklebust 465828331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4659f26c7a78STrond Myklebust if (status < 0) 466099baf625SManoj Naik goto xdr_error; 4661409924e4STrond Myklebust fattr->valid |= status; 4662f26c7a78STrond Myklebust 46631ca843a2SAndreas Gruenbacher status = -EIO; 46641ca843a2SAndreas Gruenbacher if (unlikely(bitmap[1])) 46651ca843a2SAndreas Gruenbacher goto xdr_error; 46661ca843a2SAndreas Gruenbacher 466788034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 466888034c3dSAndy Adamson if (status < 0) 466988034c3dSAndy Adamson goto xdr_error; 467088034c3dSAndy Adamson 4671aa9c2669SDavid Quigley if (label) { 4672aa9c2669SDavid Quigley status = decode_attr_security_label(xdr, bitmap, label); 4673aa9c2669SDavid Quigley if (status < 0) 4674aa9c2669SDavid Quigley goto xdr_error; 4675aa9c2669SDavid Quigley fattr->valid |= status; 4676aa9c2669SDavid Quigley } 4677aa9c2669SDavid Quigley 4678ae42c70aSBryan Schumaker xdr_error: 4679ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4680ae42c70aSBryan Schumaker return status; 4681ae42c70aSBryan Schumaker } 4682ae42c70aSBryan Schumaker 4683ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 46848b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 4685aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4686ae42c70aSBryan Schumaker { 4687256e48bbSTrond Myklebust unsigned int savep; 4688ae42c70aSBryan Schumaker uint32_t attrlen, 4689dae100c2SFred Isaman bitmap[3] = {0}; 4690ae42c70aSBryan Schumaker int status; 4691ae42c70aSBryan Schumaker 4692ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4693ae42c70aSBryan Schumaker if (status < 0) 4694ae42c70aSBryan Schumaker goto xdr_error; 4695ae42c70aSBryan Schumaker 4696ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4697ae42c70aSBryan Schumaker if (status < 0) 4698ae42c70aSBryan Schumaker goto xdr_error; 4699ae42c70aSBryan Schumaker 4700ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4701ae42c70aSBryan Schumaker if (status < 0) 4702ae42c70aSBryan Schumaker goto xdr_error; 4703ae42c70aSBryan Schumaker 4704aa9c2669SDavid Quigley status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, 4705aa9c2669SDavid Quigley label, server); 4706ae42c70aSBryan Schumaker if (status < 0) 4707ae42c70aSBryan Schumaker goto xdr_error; 4708ae42c70aSBryan Schumaker 4709f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 47101da177e4SLinus Torvalds xdr_error: 47113110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 47121da177e4SLinus Torvalds return status; 47131da177e4SLinus Torvalds } 47141da177e4SLinus Torvalds 4715aa9c2669SDavid Quigley static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4716aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4717aa9c2669SDavid Quigley { 4718aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server); 4719aa9c2669SDavid Quigley } 4720aa9c2669SDavid Quigley 4721ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 47226926afd1STrond Myklebust const struct nfs_server *server) 4723ae42c70aSBryan Schumaker { 4724aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server); 4725ae42c70aSBryan Schumaker } 47261da177e4SLinus Torvalds 4727504913fbSAndy Adamson /* 47283132e49eSJeff Layton * Decode potentially multiple layout types. 4729504913fbSAndy Adamson */ 47303132e49eSJeff Layton static int decode_pnfs_layout_types(struct xdr_stream *xdr, 4731ca440c38SJeff Layton struct nfs_fsinfo *fsinfo) 4732504913fbSAndy Adamson { 4733b8a8a0ddSTrond Myklebust __be32 *p; 4734ca440c38SJeff Layton uint32_t i; 4735504913fbSAndy Adamson 4736504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4737504913fbSAndy Adamson if (unlikely(!p)) 4738504913fbSAndy Adamson goto out_overflow; 4739ca440c38SJeff Layton fsinfo->nlayouttypes = be32_to_cpup(p); 4740504913fbSAndy Adamson 4741504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4742ca440c38SJeff Layton if (fsinfo->nlayouttypes == 0) 4743504913fbSAndy Adamson return 0; 4744504913fbSAndy Adamson 4745504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4746ca440c38SJeff Layton p = xdr_inline_decode(xdr, fsinfo->nlayouttypes * 4); 4747504913fbSAndy Adamson if (unlikely(!p)) 4748504913fbSAndy Adamson goto out_overflow; 4749ca440c38SJeff Layton 4750ca440c38SJeff Layton /* If we get too many, then just cap it at the max */ 4751ca440c38SJeff Layton if (fsinfo->nlayouttypes > NFS_MAX_LAYOUT_TYPES) { 4752ca440c38SJeff Layton printk(KERN_INFO "NFS: %s: Warning: Too many (%u) pNFS layout types\n", 4753ca440c38SJeff Layton __func__, fsinfo->nlayouttypes); 4754ca440c38SJeff Layton fsinfo->nlayouttypes = NFS_MAX_LAYOUT_TYPES; 4755ca440c38SJeff Layton } 4756ca440c38SJeff Layton 4757ca440c38SJeff Layton for(i = 0; i < fsinfo->nlayouttypes; ++i) 4758ca440c38SJeff Layton fsinfo->layouttype[i] = be32_to_cpup(p++); 4759504913fbSAndy Adamson return 0; 4760504913fbSAndy Adamson out_overflow: 4761504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4762504913fbSAndy Adamson return -EIO; 4763504913fbSAndy Adamson } 4764504913fbSAndy Adamson 4765504913fbSAndy Adamson /* 4766504913fbSAndy Adamson * The type of file system exported. 4767504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4768504913fbSAndy Adamson */ 4769504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4770ca440c38SJeff Layton struct nfs_fsinfo *fsinfo) 4771504913fbSAndy Adamson { 4772504913fbSAndy Adamson int status = 0; 4773504913fbSAndy Adamson 4774504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4775504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4776504913fbSAndy Adamson return -EIO; 4777504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4778ca440c38SJeff Layton status = decode_pnfs_layout_types(xdr, fsinfo); 4779504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 47803132e49eSJeff Layton } 4781504913fbSAndy Adamson return status; 4782504913fbSAndy Adamson } 4783504913fbSAndy Adamson 4784dae100c2SFred Isaman /* 4785dae100c2SFred Isaman * The prefered block size for layout directed io 4786dae100c2SFred Isaman */ 4787dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4788dae100c2SFred Isaman uint32_t *res) 4789dae100c2SFred Isaman { 4790dae100c2SFred Isaman __be32 *p; 4791dae100c2SFred Isaman 4792dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4793dae100c2SFred Isaman *res = 0; 4794dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4795dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4796dae100c2SFred Isaman if (unlikely(!p)) { 4797dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4798dae100c2SFred Isaman return -EIO; 4799dae100c2SFred Isaman } 4800dae100c2SFred Isaman *res = be32_to_cpup(p); 4801dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4802dae100c2SFred Isaman } 4803dae100c2SFred Isaman return 0; 4804dae100c2SFred Isaman } 4805dae100c2SFred Isaman 48062a92ee92SPeng Tao /* 48072a92ee92SPeng Tao * The granularity of a CLONE operation. 48082a92ee92SPeng Tao */ 48092a92ee92SPeng Tao static int decode_attr_clone_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 48102a92ee92SPeng Tao uint32_t *res) 48112a92ee92SPeng Tao { 48122a92ee92SPeng Tao __be32 *p; 48132a92ee92SPeng Tao 48142a92ee92SPeng Tao dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 48152a92ee92SPeng Tao *res = 0; 48162a92ee92SPeng Tao if (bitmap[2] & FATTR4_WORD2_CLONE_BLKSIZE) { 48172a92ee92SPeng Tao p = xdr_inline_decode(xdr, 4); 48182a92ee92SPeng Tao if (unlikely(!p)) { 48192a92ee92SPeng Tao print_overflow_msg(__func__, xdr); 48202a92ee92SPeng Tao return -EIO; 48212a92ee92SPeng Tao } 48222a92ee92SPeng Tao *res = be32_to_cpup(p); 48232a92ee92SPeng Tao bitmap[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE; 48242a92ee92SPeng Tao } 48252a92ee92SPeng Tao return 0; 48262a92ee92SPeng Tao } 48272a92ee92SPeng Tao 48281da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 48291da177e4SLinus Torvalds { 4830256e48bbSTrond Myklebust unsigned int savep; 4831dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 48321da177e4SLinus Torvalds int status; 48331da177e4SLinus Torvalds 48341da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 48351da177e4SLinus Torvalds goto xdr_error; 48361da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 48371da177e4SLinus Torvalds goto xdr_error; 48381da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 48391da177e4SLinus Torvalds goto xdr_error; 48401da177e4SLinus Torvalds 48411da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 48421da177e4SLinus Torvalds 48431da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 48441da177e4SLinus Torvalds goto xdr_error; 48451da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 48461da177e4SLinus Torvalds goto xdr_error; 48471da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 48481da177e4SLinus Torvalds goto xdr_error; 48491da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 48501da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 48511da177e4SLinus Torvalds goto xdr_error; 48521da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 48531ca843a2SAndreas Gruenbacher 48541ca843a2SAndreas Gruenbacher status = -EIO; 48551ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 48561ca843a2SAndreas Gruenbacher goto xdr_error; 48571ca843a2SAndreas Gruenbacher 485855b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 485955b6e774SRicardo Labiaga if (status != 0) 486055b6e774SRicardo Labiaga goto xdr_error; 4861ca440c38SJeff Layton status = decode_attr_pnfstype(xdr, bitmap, fsinfo); 4862504913fbSAndy Adamson if (status != 0) 4863504913fbSAndy Adamson goto xdr_error; 48641ca843a2SAndreas Gruenbacher 48651ca843a2SAndreas Gruenbacher status = -EIO; 48661ca843a2SAndreas Gruenbacher if (unlikely(bitmap[1])) 48671ca843a2SAndreas Gruenbacher goto xdr_error; 48681ca843a2SAndreas Gruenbacher 4869dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4870dae100c2SFred Isaman if (status) 4871dae100c2SFred Isaman goto xdr_error; 48722a92ee92SPeng Tao status = decode_attr_clone_blksize(xdr, bitmap, &fsinfo->clone_blksize); 48732a92ee92SPeng Tao if (status) 48742a92ee92SPeng Tao goto xdr_error; 48751da177e4SLinus Torvalds 48761da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 48771da177e4SLinus Torvalds xdr_error: 48783110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 48791da177e4SLinus Torvalds return status; 48801da177e4SLinus Torvalds } 48811da177e4SLinus Torvalds 48821da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 48831da177e4SLinus Torvalds { 48848687b63aSAl Viro __be32 *p; 48851da177e4SLinus Torvalds uint32_t len; 48861da177e4SLinus Torvalds int status; 48871da177e4SLinus Torvalds 48889936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 48899936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 48909936781dSTrond Myklebust 48911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 48921da177e4SLinus Torvalds if (status) 48931da177e4SLinus Torvalds return status; 48941da177e4SLinus Torvalds 4895c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4896c0eae66eSBenny Halevy if (unlikely(!p)) 4897c0eae66eSBenny Halevy goto out_overflow; 4898cccddf4fSBenny Halevy len = be32_to_cpup(p); 48991da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 49001da177e4SLinus Torvalds return -EIO; 49011da177e4SLinus Torvalds fh->size = len; 4902c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4903c0eae66eSBenny Halevy if (unlikely(!p)) 4904c0eae66eSBenny Halevy goto out_overflow; 490599398d06SBenny Halevy memcpy(fh->data, p, len); 49061da177e4SLinus Torvalds return 0; 4907c0eae66eSBenny Halevy out_overflow: 4908c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4909c0eae66eSBenny Halevy return -EIO; 49101da177e4SLinus Torvalds } 49111da177e4SLinus Torvalds 49121da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 49131da177e4SLinus Torvalds { 49141da177e4SLinus Torvalds int status; 49151da177e4SLinus Torvalds 49161da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 49171da177e4SLinus Torvalds if (status) 49181da177e4SLinus Torvalds return status; 49191da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 49201da177e4SLinus Torvalds } 49211da177e4SLinus Torvalds 49221da177e4SLinus Torvalds /* 49231da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 49241da177e4SLinus Torvalds */ 4925911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 49261da177e4SLinus Torvalds { 4927911d1aafSTrond Myklebust uint64_t offset, length, clientid; 49288687b63aSAl Viro __be32 *p; 4929911d1aafSTrond Myklebust uint32_t namelen, type; 49301da177e4SLinus Torvalds 4931babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4932c0eae66eSBenny Halevy if (unlikely(!p)) 4933c0eae66eSBenny Halevy goto out_overflow; 4934babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 49353ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4936babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4937babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4938911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4939911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4940911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4941911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4942911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4943911d1aafSTrond Myklebust if (type & 1) 4944911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4945911d1aafSTrond Myklebust fl->fl_pid = 0; 4946911d1aafSTrond Myklebust } 4947babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4948babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4949babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4950c0eae66eSBenny Halevy if (likely(p)) 49511da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4952c0eae66eSBenny Halevy out_overflow: 4953c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4954c0eae66eSBenny Halevy return -EIO; 49551da177e4SLinus Torvalds } 49561da177e4SLinus Torvalds 4957911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 49581da177e4SLinus Torvalds { 49591da177e4SLinus Torvalds int status; 49601da177e4SLinus Torvalds 49611da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4962c1d51931STrond Myklebust if (status == -EIO) 4963c1d51931STrond Myklebust goto out; 49641da177e4SLinus Torvalds if (status == 0) { 496593b717fdSTrond Myklebust status = decode_lock_stateid(xdr, &res->stateid); 496607d30434SBenny Halevy if (unlikely(status)) 496707d30434SBenny Halevy goto out; 49681da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4969c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4970c1d51931STrond Myklebust if (res->open_seqid != NULL) 4971c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4972c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4973c1d51931STrond Myklebust out: 49741da177e4SLinus Torvalds return status; 49751da177e4SLinus Torvalds } 49761da177e4SLinus Torvalds 4977911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 49781da177e4SLinus Torvalds { 49791da177e4SLinus Torvalds int status; 49801da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 49811da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4982911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 49831da177e4SLinus Torvalds return status; 49841da177e4SLinus Torvalds } 49851da177e4SLinus Torvalds 4986911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 49871da177e4SLinus Torvalds { 49881da177e4SLinus Torvalds int status; 49891da177e4SLinus Torvalds 49901da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4991c1d51931STrond Myklebust if (status != -EIO) 4992c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 499307d30434SBenny Halevy if (status == 0) 499493b717fdSTrond Myklebust status = decode_lock_stateid(xdr, &res->stateid); 49951da177e4SLinus Torvalds return status; 49961da177e4SLinus Torvalds } 49971da177e4SLinus Torvalds 4998d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4999d3c7b7ccSTrond Myklebust { 5000d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 5001d3c7b7ccSTrond Myklebust } 5002d3c7b7ccSTrond Myklebust 50031da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 50041da177e4SLinus Torvalds { 50051da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 50061da177e4SLinus Torvalds } 50071da177e4SLinus Torvalds 50081da177e4SLinus Torvalds /* This is too sick! */ 50097d160a6cSTrond Myklebust static int decode_space_limit(struct xdr_stream *xdr, 50107d160a6cSTrond Myklebust unsigned long *pagemod_limit) 50111da177e4SLinus Torvalds { 50128687b63aSAl Viro __be32 *p; 50131da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 50147d160a6cSTrond Myklebust u64 maxsize = 0; 50151da177e4SLinus Torvalds 5016c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5017c0eae66eSBenny Halevy if (unlikely(!p)) 5018c0eae66eSBenny Halevy goto out_overflow; 50196f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 50201da177e4SLinus Torvalds switch (limit_type) { 50217d160a6cSTrond Myklebust case NFS4_LIMIT_SIZE: 50227d160a6cSTrond Myklebust xdr_decode_hyper(p, &maxsize); 50231da177e4SLinus Torvalds break; 50247d160a6cSTrond Myklebust case NFS4_LIMIT_BLOCKS: 50256f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 5026cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 50277d160a6cSTrond Myklebust maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 50281da177e4SLinus Torvalds } 502909cbfeafSKirill A. Shutemov maxsize >>= PAGE_SHIFT; 50307d160a6cSTrond Myklebust *pagemod_limit = min_t(u64, maxsize, ULONG_MAX); 50311da177e4SLinus Torvalds return 0; 5032c0eae66eSBenny Halevy out_overflow: 5033c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5034c0eae66eSBenny Halevy return -EIO; 50351da177e4SLinus Torvalds } 50361da177e4SLinus Torvalds 50376ae37339STrond Myklebust static int decode_rw_delegation(struct xdr_stream *xdr, 50386ae37339STrond Myklebust uint32_t delegation_type, 50396ae37339STrond Myklebust struct nfs_openres *res) 50401da177e4SLinus Torvalds { 50418687b63aSAl Viro __be32 *p; 504207d30434SBenny Halevy int status; 50431da177e4SLinus Torvalds 504493b717fdSTrond Myklebust status = decode_delegation_stateid(xdr, &res->delegation); 504507d30434SBenny Halevy if (unlikely(status)) 504607d30434SBenny Halevy return status; 5047c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5048c0eae66eSBenny Halevy if (unlikely(!p)) 5049c0eae66eSBenny Halevy goto out_overflow; 5050cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 505105d564feSAndy Adamson 50521da177e4SLinus Torvalds switch (delegation_type) { 50531da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 50541da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 50551da177e4SLinus Torvalds break; 50561da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 50571da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 50587d160a6cSTrond Myklebust if (decode_space_limit(xdr, &res->pagemod_limit) < 0) 50591da177e4SLinus Torvalds return -EIO; 50601da177e4SLinus Torvalds } 50617539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 5062c0eae66eSBenny Halevy out_overflow: 5063c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5064c0eae66eSBenny Halevy return -EIO; 50651da177e4SLinus Torvalds } 50661da177e4SLinus Torvalds 50676ae37339STrond Myklebust static int decode_no_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 50686ae37339STrond Myklebust { 50696ae37339STrond Myklebust __be32 *p; 50706ae37339STrond Myklebust uint32_t why_no_delegation; 50716ae37339STrond Myklebust 50726ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 50736ae37339STrond Myklebust if (unlikely(!p)) 50746ae37339STrond Myklebust goto out_overflow; 50756ae37339STrond Myklebust why_no_delegation = be32_to_cpup(p); 50766ae37339STrond Myklebust switch (why_no_delegation) { 50776ae37339STrond Myklebust case WND4_CONTENTION: 50786ae37339STrond Myklebust case WND4_RESOURCE: 50796ae37339STrond Myklebust xdr_inline_decode(xdr, 4); 50806ae37339STrond Myklebust /* Ignore for now */ 50816ae37339STrond Myklebust } 50826ae37339STrond Myklebust return 0; 50836ae37339STrond Myklebust out_overflow: 50846ae37339STrond Myklebust print_overflow_msg(__func__, xdr); 50856ae37339STrond Myklebust return -EIO; 50866ae37339STrond Myklebust } 50876ae37339STrond Myklebust 50886ae37339STrond Myklebust static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 50896ae37339STrond Myklebust { 50906ae37339STrond Myklebust __be32 *p; 50916ae37339STrond Myklebust uint32_t delegation_type; 50926ae37339STrond Myklebust 50936ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 50946ae37339STrond Myklebust if (unlikely(!p)) 50956ae37339STrond Myklebust goto out_overflow; 50966ae37339STrond Myklebust delegation_type = be32_to_cpup(p); 50976ae37339STrond Myklebust res->delegation_type = 0; 50986ae37339STrond Myklebust switch (delegation_type) { 50996ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE: 51006ae37339STrond Myklebust return 0; 51016ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_READ: 51026ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_WRITE: 51036ae37339STrond Myklebust return decode_rw_delegation(xdr, delegation_type, res); 51046ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE_EXT: 51056ae37339STrond Myklebust return decode_no_delegation(xdr, res); 51066ae37339STrond Myklebust } 51076ae37339STrond Myklebust return -EIO; 51086ae37339STrond Myklebust out_overflow: 51096ae37339STrond Myklebust print_overflow_msg(__func__, xdr); 51106ae37339STrond Myklebust return -EIO; 51116ae37339STrond Myklebust } 51126ae37339STrond Myklebust 51131da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 51141da177e4SLinus Torvalds { 51158687b63aSAl Viro __be32 *p; 5116aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 51171da177e4SLinus Torvalds int status; 51181da177e4SLinus Torvalds 5119c7848f69STrond Myklebust if (!__decode_op_hdr(xdr, OP_OPEN, &status)) 5120c7848f69STrond Myklebust return status; 5121c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 5122c7848f69STrond Myklebust if (status) 5123c7848f69STrond Myklebust return status; 512493b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 512507d30434SBenny Halevy if (unlikely(status)) 51261da177e4SLinus Torvalds return status; 51271da177e4SLinus Torvalds 51281da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 51291da177e4SLinus Torvalds 5130c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5131c0eae66eSBenny Halevy if (unlikely(!p)) 5132c0eae66eSBenny Halevy goto out_overflow; 51336f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 5134cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 51351da177e4SLinus Torvalds if (bmlen > 10) 51361da177e4SLinus Torvalds goto xdr_error; 51371da177e4SLinus Torvalds 5138c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5139c0eae66eSBenny Halevy if (unlikely(!p)) 5140c0eae66eSBenny Halevy goto out_overflow; 5141aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 5142aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 51436f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 5144aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 5145aa53ed54SJeff Layton res->attrset[i] = 0; 5146aa53ed54SJeff Layton 51471da177e4SLinus Torvalds return decode_delegation(xdr, res); 51481da177e4SLinus Torvalds xdr_error: 51493110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 51501da177e4SLinus Torvalds return -EIO; 5151c0eae66eSBenny Halevy out_overflow: 5152c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5153c0eae66eSBenny Halevy return -EIO; 51541da177e4SLinus Torvalds } 51551da177e4SLinus Torvalds 51561da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 51571da177e4SLinus Torvalds { 51581da177e4SLinus Torvalds int status; 51591da177e4SLinus Torvalds 51601da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 5161c1d51931STrond Myklebust if (status != -EIO) 5162c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 516307d30434SBenny Halevy if (!status) 516493b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 51651da177e4SLinus Torvalds return status; 51661da177e4SLinus Torvalds } 51671da177e4SLinus Torvalds 51681da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 51691da177e4SLinus Torvalds { 51701da177e4SLinus Torvalds int status; 51711da177e4SLinus Torvalds 51721da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 5173c1d51931STrond Myklebust if (status != -EIO) 5174c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 517507d30434SBenny Halevy if (!status) 517693b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 51771da177e4SLinus Torvalds return status; 51781da177e4SLinus Torvalds } 51791da177e4SLinus Torvalds 51801da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 51811da177e4SLinus Torvalds { 51821da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 51831da177e4SLinus Torvalds } 51841da177e4SLinus Torvalds 51851da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 51861da177e4SLinus Torvalds { 51871da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 51881da177e4SLinus Torvalds } 51891da177e4SLinus Torvalds 51909137bdf3SAnna Schumaker static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, 51919137bdf3SAnna Schumaker struct nfs_pgio_res *res) 51921da177e4SLinus Torvalds { 51938687b63aSAl Viro __be32 *p; 519464bd577eSTrond Myklebust uint32_t count, eof, recvd; 51951da177e4SLinus Torvalds int status; 51961da177e4SLinus Torvalds 51971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 51981da177e4SLinus Torvalds if (status) 51991da177e4SLinus Torvalds return status; 5200c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5201c0eae66eSBenny Halevy if (unlikely(!p)) 5202c0eae66eSBenny Halevy goto out_overflow; 52036f723f77SBenny Halevy eof = be32_to_cpup(p++); 5204cccddf4fSBenny Halevy count = be32_to_cpup(p); 520564bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 52061da177e4SLinus Torvalds if (count > recvd) { 5207fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 52081da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 52091da177e4SLinus Torvalds count = recvd; 52101da177e4SLinus Torvalds eof = 0; 52111da177e4SLinus Torvalds } 52121da177e4SLinus Torvalds res->eof = eof; 52131da177e4SLinus Torvalds res->count = count; 52141da177e4SLinus Torvalds return 0; 5215c0eae66eSBenny Halevy out_overflow: 5216c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5217c0eae66eSBenny Halevy return -EIO; 52181da177e4SLinus Torvalds } 52191da177e4SLinus Torvalds 52201da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 52211da177e4SLinus Torvalds { 5222bcecff77SChuck Lever int status; 5223cd93710eSChuck Lever __be32 verf[2]; 52241da177e4SLinus Torvalds 52251da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 5226db942bbdSBenny Halevy if (!status) 5227db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 5228db942bbdSBenny Halevy if (unlikely(status)) 52291da177e4SLinus Torvalds return status; 5230cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 523144109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 5232cd93710eSChuck Lever __func__, verf[0], verf[1]); 523364bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 52341da177e4SLinus Torvalds } 52351da177e4SLinus Torvalds 52361da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 52371da177e4SLinus Torvalds { 52381da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 5239bcecff77SChuck Lever u32 len, recvd; 52408687b63aSAl Viro __be32 *p; 52411da177e4SLinus Torvalds int status; 52421da177e4SLinus Torvalds 52431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 52441da177e4SLinus Torvalds if (status) 52451da177e4SLinus Torvalds return status; 52461da177e4SLinus Torvalds 52471da177e4SLinus Torvalds /* Convert length of symlink */ 5248c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5249c0eae66eSBenny Halevy if (unlikely(!p)) 5250c0eae66eSBenny Halevy goto out_overflow; 5251cccddf4fSBenny Halevy len = be32_to_cpup(p); 52521da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 5253fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 52541da177e4SLinus Torvalds return -ENAMETOOLONG; 52551da177e4SLinus Torvalds } 525664bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 52571da177e4SLinus Torvalds if (recvd < len) { 5258fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 52591da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 52601da177e4SLinus Torvalds return -EIO; 52611da177e4SLinus Torvalds } 52621da177e4SLinus Torvalds /* 52631da177e4SLinus Torvalds * The XDR encode routine has set things up so that 52641da177e4SLinus Torvalds * the link text will be copied directly into the 52651da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 52661da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 52671da177e4SLinus Torvalds * null-termination). 52681da177e4SLinus Torvalds */ 5269b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 52701da177e4SLinus Torvalds return 0; 5271c0eae66eSBenny Halevy out_overflow: 5272c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5273c0eae66eSBenny Halevy return -EIO; 52741da177e4SLinus Torvalds } 52751da177e4SLinus Torvalds 52761da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 52771da177e4SLinus Torvalds { 52781da177e4SLinus Torvalds int status; 52791da177e4SLinus Torvalds 52801da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 52811da177e4SLinus Torvalds if (status) 52821da177e4SLinus Torvalds goto out; 52831da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 52841da177e4SLinus Torvalds out: 52851da177e4SLinus Torvalds return status; 52861da177e4SLinus Torvalds } 52871da177e4SLinus Torvalds 52881da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 52891da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 52901da177e4SLinus Torvalds { 52911da177e4SLinus Torvalds int status; 52921da177e4SLinus Torvalds 52931da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 52941da177e4SLinus Torvalds if (status) 52951da177e4SLinus Torvalds goto out; 52961da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 52971da177e4SLinus Torvalds goto out; 52981da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 52991da177e4SLinus Torvalds out: 53001da177e4SLinus Torvalds return status; 53011da177e4SLinus Torvalds } 53021da177e4SLinus Torvalds 53031da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 53041da177e4SLinus Torvalds { 53051da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 53061da177e4SLinus Torvalds } 53071da177e4SLinus Torvalds 530856ae19f3STrond Myklebust static int 530956ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 531056ae19f3STrond Myklebust { 531156ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 531256ae19f3STrond Myklebust } 531356ae19f3STrond Myklebust 5314029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5315bf118a34SAndy Adamson struct nfs_getaclres *res) 5316029d105eSJ. Bruce Fields { 5317256e48bbSTrond Myklebust unsigned int savep; 5318029d105eSJ. Bruce Fields uint32_t attrlen, 5319dae100c2SFred Isaman bitmap[3] = {0}; 5320029d105eSJ. Bruce Fields int status; 5321cff298c7STrond Myklebust unsigned int pg_offset; 5322029d105eSJ. Bruce Fields 5323bf118a34SAndy Adamson res->acl_len = 0; 5324029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5325029d105eSJ. Bruce Fields goto out; 53265a006899SSachin Prabhu 5327519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5328519d3959STrond Myklebust 5329cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5330cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 53315a006899SSachin Prabhu 5332029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5333029d105eSJ. Bruce Fields goto out; 5334029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5335029d105eSJ. Bruce Fields goto out; 5336029d105eSJ. Bruce Fields 5337029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5338029d105eSJ. Bruce Fields return -EIO; 5339029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5340029d105eSJ. Bruce Fields 5341bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5342bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5343bf118a34SAndy Adamson * variable length bitmaps.*/ 5344cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5345519d3959STrond Myklebust res->acl_len = attrlen; 53461f1ea6c2STrond Myklebust 53471f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 53481f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 53491f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 53501f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5351519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5352cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5353029d105eSJ. Bruce Fields } 53548c233cf9SJ. Bruce Fields } else 53558c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5356029d105eSJ. Bruce Fields 5357029d105eSJ. Bruce Fields out: 5358029d105eSJ. Bruce Fields return status; 5359029d105eSJ. Bruce Fields } 5360029d105eSJ. Bruce Fields 53611da177e4SLinus Torvalds static int 53621da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 53631da177e4SLinus Torvalds { 53641da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 53651da177e4SLinus Torvalds } 53661da177e4SLinus Torvalds 53679e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 53681da177e4SLinus Torvalds { 53698687b63aSAl Viro __be32 *p; 53701da177e4SLinus Torvalds uint32_t bmlen; 53711da177e4SLinus Torvalds int status; 53721da177e4SLinus Torvalds 53731da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 53741da177e4SLinus Torvalds if (status) 53751da177e4SLinus Torvalds return status; 5376c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5377c0eae66eSBenny Halevy if (unlikely(!p)) 5378c0eae66eSBenny Halevy goto out_overflow; 5379cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5380c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5381c0eae66eSBenny Halevy if (likely(p)) 53821da177e4SLinus Torvalds return 0; 5383c0eae66eSBenny Halevy out_overflow: 5384c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5385c0eae66eSBenny Halevy return -EIO; 53861da177e4SLinus Torvalds } 53871da177e4SLinus Torvalds 5388bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 53891da177e4SLinus Torvalds { 53908687b63aSAl Viro __be32 *p; 53911da177e4SLinus Torvalds uint32_t opnum; 53921da177e4SLinus Torvalds int32_t nfserr; 53931da177e4SLinus Torvalds 5394c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5395c0eae66eSBenny Halevy if (unlikely(!p)) 5396c0eae66eSBenny Halevy goto out_overflow; 53976f723f77SBenny Halevy opnum = be32_to_cpup(p++); 53981da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5399fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 54001da177e4SLinus Torvalds " %d\n", opnum); 54011da177e4SLinus Torvalds return -EIO; 54021da177e4SLinus Torvalds } 5403cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 54041da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5405c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5406c0eae66eSBenny Halevy if (unlikely(!p)) 5407c0eae66eSBenny Halevy goto out_overflow; 5408bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5409bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 54101da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 54111da177e4SLinus Torvalds uint32_t len; 54121da177e4SLinus Torvalds 54131da177e4SLinus Torvalds /* skip netid string */ 5414c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5415c0eae66eSBenny Halevy if (unlikely(!p)) 5416c0eae66eSBenny Halevy goto out_overflow; 5417cccddf4fSBenny Halevy len = be32_to_cpup(p); 5418c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5419c0eae66eSBenny Halevy if (unlikely(!p)) 5420c0eae66eSBenny Halevy goto out_overflow; 54211da177e4SLinus Torvalds 54221da177e4SLinus Torvalds /* skip uaddr string */ 5423c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5424c0eae66eSBenny Halevy if (unlikely(!p)) 5425c0eae66eSBenny Halevy goto out_overflow; 5426cccddf4fSBenny Halevy len = be32_to_cpup(p); 5427c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5428c0eae66eSBenny Halevy if (unlikely(!p)) 5429c0eae66eSBenny Halevy goto out_overflow; 54301da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 54311da177e4SLinus Torvalds } else 5432856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 54331da177e4SLinus Torvalds 54341da177e4SLinus Torvalds return 0; 5435c0eae66eSBenny Halevy out_overflow: 5436c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5437c0eae66eSBenny Halevy return -EIO; 54381da177e4SLinus Torvalds } 54391da177e4SLinus Torvalds 54401da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 54411da177e4SLinus Torvalds { 54421da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 54431da177e4SLinus Torvalds } 54441da177e4SLinus Torvalds 54459137bdf3SAnna Schumaker static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res) 54461da177e4SLinus Torvalds { 54478687b63aSAl Viro __be32 *p; 54481da177e4SLinus Torvalds int status; 54491da177e4SLinus Torvalds 54501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 54511da177e4SLinus Torvalds if (status) 54521da177e4SLinus Torvalds return status; 54531da177e4SLinus Torvalds 54542f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5455c0eae66eSBenny Halevy if (unlikely(!p)) 5456c0eae66eSBenny Halevy goto out_overflow; 54576f723f77SBenny Halevy res->count = be32_to_cpup(p++); 54586f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 54592f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5460c0eae66eSBenny Halevy out_overflow: 5461c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5462c0eae66eSBenny Halevy return -EIO; 54631da177e4SLinus Torvalds } 54641da177e4SLinus Torvalds 54651da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 54661da177e4SLinus Torvalds { 54671da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 54681da177e4SLinus Torvalds } 54691da177e4SLinus Torvalds 5470fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5471fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 54725a5ea0d4SBryan Schumaker { 5473fb15b26fSChuck Lever u32 oid_len; 54745a5ea0d4SBryan Schumaker __be32 *p; 54755a5ea0d4SBryan Schumaker 54765a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54775a5ea0d4SBryan Schumaker if (unlikely(!p)) 54785a5ea0d4SBryan Schumaker goto out_overflow; 5479fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5480fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 54815a5ea0d4SBryan Schumaker goto out_err; 54825a5ea0d4SBryan Schumaker 5483fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 54845a5ea0d4SBryan Schumaker if (unlikely(!p)) 54855a5ea0d4SBryan Schumaker goto out_overflow; 5486fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5487fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 54885a5ea0d4SBryan Schumaker 54895a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 54905a5ea0d4SBryan Schumaker if (unlikely(!p)) 54915a5ea0d4SBryan Schumaker goto out_overflow; 5492fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5493fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 54945a5ea0d4SBryan Schumaker 54955a5ea0d4SBryan Schumaker return 0; 54965a5ea0d4SBryan Schumaker 54975a5ea0d4SBryan Schumaker out_overflow: 54985a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 54995a5ea0d4SBryan Schumaker return -EIO; 55005a5ea0d4SBryan Schumaker out_err: 55015a5ea0d4SBryan Schumaker return -EINVAL; 55025a5ea0d4SBryan Schumaker } 55035a5ea0d4SBryan Schumaker 550431e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 55055a5ea0d4SBryan Schumaker { 5506fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5507fb15b26fSChuck Lever unsigned int i, num_flavors; 55085a5ea0d4SBryan Schumaker int status; 55095a5ea0d4SBryan Schumaker __be32 *p; 55105a5ea0d4SBryan Schumaker 55115a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 55125a5ea0d4SBryan Schumaker if (unlikely(!p)) 55135a5ea0d4SBryan Schumaker goto out_overflow; 55145a5ea0d4SBryan Schumaker 5515c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5516c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5517c3dfc280SBryan Schumaker 5518c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 55195a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5520c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 55215a5ea0d4SBryan Schumaker break; 55225a5ea0d4SBryan Schumaker 55235a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 55245a5ea0d4SBryan Schumaker if (unlikely(!p)) 55255a5ea0d4SBryan Schumaker goto out_overflow; 55265a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 55275a5ea0d4SBryan Schumaker 55285a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5529613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5530613e901eSBryan Schumaker if (status) 5531613e901eSBryan Schumaker goto out; 55325a5ea0d4SBryan Schumaker } 5533c3dfc280SBryan Schumaker res->flavors->num_flavors++; 55345a5ea0d4SBryan Schumaker } 55355a5ea0d4SBryan Schumaker 553631e4dda4SBryan Schumaker status = 0; 5537613e901eSBryan Schumaker out: 5538613e901eSBryan Schumaker return status; 55395a5ea0d4SBryan Schumaker out_overflow: 55405a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 55415a5ea0d4SBryan Schumaker return -EIO; 55425a5ea0d4SBryan Schumaker } 55435a5ea0d4SBryan Schumaker 554431e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 554531e4dda4SBryan Schumaker { 554631e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 554731e4dda4SBryan Schumaker if (status) 554831e4dda4SBryan Schumaker return status; 554931e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 555031e4dda4SBryan Schumaker } 555131e4dda4SBryan Schumaker 555299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 555331e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 555431e4dda4SBryan Schumaker { 555531e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 555631e4dda4SBryan Schumaker if (status) 555731e4dda4SBryan Schumaker return status; 555831e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 555931e4dda4SBryan Schumaker } 556031e4dda4SBryan Schumaker 55612031cd1aSWeston Andros Adamson static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 55622031cd1aSWeston Andros Adamson { 55632031cd1aSWeston Andros Adamson __be32 *p; 55642031cd1aSWeston Andros Adamson uint32_t bitmap_words; 55652031cd1aSWeston Andros Adamson unsigned int i; 55662031cd1aSWeston Andros Adamson 55672031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 55682031cd1aSWeston Andros Adamson bitmap_words = be32_to_cpup(p++); 55692031cd1aSWeston Andros Adamson if (bitmap_words > NFS4_OP_MAP_NUM_WORDS) 55702031cd1aSWeston Andros Adamson return -EIO; 55712031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4 * bitmap_words); 55722031cd1aSWeston Andros Adamson for (i = 0; i < bitmap_words; i++) 55732031cd1aSWeston Andros Adamson op_map->u.words[i] = be32_to_cpup(p++); 55742031cd1aSWeston Andros Adamson 55752031cd1aSWeston Andros Adamson return 0; 55762031cd1aSWeston Andros Adamson } 55772031cd1aSWeston Andros Adamson 557899fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 557999fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 558099fe60d0SBenny Halevy { 558199fe60d0SBenny Halevy __be32 *p; 558299fe60d0SBenny Halevy uint32_t dummy; 55832460ba57SBenny Halevy char *dummy_str; 558499fe60d0SBenny Halevy int status; 55857d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 558699fe60d0SBenny Halevy 558799fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 558899fe60d0SBenny Halevy if (status) 558999fe60d0SBenny Halevy return status; 559099fe60d0SBenny Halevy 5591c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5592c0eae66eSBenny Halevy if (unlikely(!p)) 5593c0eae66eSBenny Halevy goto out_overflow; 559432b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5595c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5596c0eae66eSBenny Halevy if (unlikely(!p)) 5597c0eae66eSBenny Halevy goto out_overflow; 559832b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 559932b01310STrond Myklebust res->flags = be32_to_cpup(p++); 560099fe60d0SBenny Halevy 56012031cd1aSWeston Andros Adamson res->state_protect.how = be32_to_cpup(p); 56022031cd1aSWeston Andros Adamson switch (res->state_protect.how) { 56032031cd1aSWeston Andros Adamson case SP4_NONE: 56042031cd1aSWeston Andros Adamson break; 56052031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 56062031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.enforce); 56072031cd1aSWeston Andros Adamson if (status) 56082031cd1aSWeston Andros Adamson return status; 56092031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.allow); 56102031cd1aSWeston Andros Adamson if (status) 56112031cd1aSWeston Andros Adamson return status; 56122031cd1aSWeston Andros Adamson break; 56132031cd1aSWeston Andros Adamson default: 56142031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 561599fe60d0SBenny Halevy return -EIO; 56162031cd1aSWeston Andros Adamson } 561799fe60d0SBenny Halevy 5618acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5619c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5620c0eae66eSBenny Halevy if (unlikely(!p)) 5621c0eae66eSBenny Halevy goto out_overflow; 5622acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 562399fe60d0SBenny Halevy 5624acdeb69dSChuck Lever /* server_owner4.so_major_id */ 56252460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 56262460ba57SBenny Halevy if (unlikely(status)) 56272460ba57SBenny Halevy return status; 562878fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 562978fe0f41SWeston Andros Adamson return -EIO; 5630acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5631acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 563278fe0f41SWeston Andros Adamson 5633acdeb69dSChuck Lever /* server_scope4 */ 5634acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5635acdeb69dSChuck Lever if (unlikely(status)) 5636acdeb69dSChuck Lever return status; 5637acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5638acdeb69dSChuck Lever return -EIO; 563978fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 564078fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 564178fe0f41SWeston Andros Adamson 56427d2ed9acSWeston Andros Adamson /* Implementation Id */ 56437d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 56447d2ed9acSWeston Andros Adamson if (unlikely(!p)) 56457d2ed9acSWeston Andros Adamson goto out_overflow; 56467d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 56477d2ed9acSWeston Andros Adamson 56487d2ed9acSWeston Andros Adamson if (impl_id_count) { 56497d2ed9acSWeston Andros Adamson /* nii_domain */ 56502460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 56512460ba57SBenny Halevy if (unlikely(status)) 56522460ba57SBenny Halevy return status; 56537d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 56547d2ed9acSWeston Andros Adamson return -EIO; 56557d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 565699fe60d0SBenny Halevy 56577d2ed9acSWeston Andros Adamson /* nii_name */ 56587d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 56597d2ed9acSWeston Andros Adamson if (unlikely(status)) 56607d2ed9acSWeston Andros Adamson return status; 56617d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 56627d2ed9acSWeston Andros Adamson return -EIO; 56637d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 56647d2ed9acSWeston Andros Adamson 56657d2ed9acSWeston Andros Adamson /* nii_date */ 56667d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 56677d2ed9acSWeston Andros Adamson if (unlikely(!p)) 56687d2ed9acSWeston Andros Adamson goto out_overflow; 56697d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 56707d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 56717d2ed9acSWeston Andros Adamson 56727d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 56737d2ed9acSWeston Andros Adamson } 567499fe60d0SBenny Halevy return 0; 5675c0eae66eSBenny Halevy out_overflow: 5676c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5677c0eae66eSBenny Halevy return -EIO; 567899fe60d0SBenny Halevy } 5679fc931582SAndy Adamson 5680fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5681fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5682fc931582SAndy Adamson { 5683fc931582SAndy Adamson __be32 *p; 5684c9c30dd5SBenny Halevy u32 nr_attrs, val; 5685fc931582SAndy Adamson 5686c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5687c0eae66eSBenny Halevy if (unlikely(!p)) 5688c0eae66eSBenny Halevy goto out_overflow; 5689c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5690c9c30dd5SBenny Halevy if (val) 5691c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 56926f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 56936f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 56946f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 56956f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 56966f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5697cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5698fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5699a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5700a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5701fc931582SAndy Adamson return -EINVAL; 5702fc931582SAndy Adamson } 5703c0eae66eSBenny Halevy if (nr_attrs == 1) { 5704c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5705c0eae66eSBenny Halevy if (unlikely(!p)) 5706c0eae66eSBenny Halevy goto out_overflow; 5707c0eae66eSBenny Halevy } 5708fc931582SAndy Adamson return 0; 5709c0eae66eSBenny Halevy out_overflow: 5710c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5711c0eae66eSBenny Halevy return -EIO; 5712fc931582SAndy Adamson } 5713fc931582SAndy Adamson 5714e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5715e78291e4SBenny Halevy { 5716e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5717fc931582SAndy Adamson } 5718fc931582SAndy Adamson 57197c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 57207c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 57217c44f1aeSWeston Andros Adamson { 57227c44f1aeSWeston Andros Adamson __be32 *p; 57237c44f1aeSWeston Andros Adamson int status; 57247c44f1aeSWeston Andros Adamson 57257c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 57267c44f1aeSWeston Andros Adamson if (!status) 572771a097c6STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 57287c44f1aeSWeston Andros Adamson if (unlikely(status)) 57297c44f1aeSWeston Andros Adamson return status; 57307c44f1aeSWeston Andros Adamson 57317c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 57327c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 57337c44f1aeSWeston Andros Adamson if (unlikely(!p)) 57347c44f1aeSWeston Andros Adamson goto out_overflow; 57357c44f1aeSWeston Andros Adamson 57367c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 57377c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 57387c44f1aeSWeston Andros Adamson return -EIO; 57397c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 57407c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 57417c44f1aeSWeston Andros Adamson else 57427c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 57437c44f1aeSWeston Andros Adamson 57447c44f1aeSWeston Andros Adamson return 0; 57457c44f1aeSWeston Andros Adamson out_overflow: 57467c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 57477c44f1aeSWeston Andros Adamson return -EIO; 57487c44f1aeSWeston Andros Adamson } 57497c44f1aeSWeston Andros Adamson 5750fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5751fc931582SAndy Adamson struct nfs41_create_session_res *res) 5752fc931582SAndy Adamson { 5753fc931582SAndy Adamson __be32 *p; 5754fc931582SAndy Adamson int status; 5755fc931582SAndy Adamson 5756fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5757e78291e4SBenny Halevy if (!status) 575879969dd1STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 5759e78291e4SBenny Halevy if (unlikely(status)) 5760fc931582SAndy Adamson return status; 5761fc931582SAndy Adamson 5762fc931582SAndy Adamson /* seqid, flags */ 5763c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5764c0eae66eSBenny Halevy if (unlikely(!p)) 5765c0eae66eSBenny Halevy goto out_overflow; 576679969dd1STrond Myklebust res->seqid = be32_to_cpup(p++); 576779969dd1STrond Myklebust res->flags = be32_to_cpup(p); 5768fc931582SAndy Adamson 5769fc931582SAndy Adamson /* Channel attributes */ 577079969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->fc_attrs); 5771fc931582SAndy Adamson if (!status) 577279969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->bc_attrs); 5773fc931582SAndy Adamson return status; 5774c0eae66eSBenny Halevy out_overflow: 5775c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5776c0eae66eSBenny Halevy return -EIO; 5777fc931582SAndy Adamson } 57780f3e66c6SAndy Adamson 57790f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 57800f3e66c6SAndy Adamson { 57810f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 57820f3e66c6SAndy Adamson } 578318019753SRicardo Labiaga 578466245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 578566245539STrond Myklebust { 578666245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 578766245539STrond Myklebust } 578866245539STrond Myklebust 578918019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 579018019753SRicardo Labiaga { 579118019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 579218019753SRicardo Labiaga } 579399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 579499fe60d0SBenny Halevy 57959b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 57969b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 57979b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 57989b7b9fccSAndy Adamson { 57999b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5800e3725ec0STrond Myklebust struct nfs4_session *session; 5801fc01cea9SAndy Adamson struct nfs4_sessionid id; 5802fc01cea9SAndy Adamson u32 dummy; 5803fc01cea9SAndy Adamson int status; 5804fc01cea9SAndy Adamson __be32 *p; 5805fc01cea9SAndy Adamson 5806e3725ec0STrond Myklebust if (res->sr_slot == NULL) 58079b7b9fccSAndy Adamson return 0; 58083bd2384aSChuck Lever if (!res->sr_slot->table->session) 58093bd2384aSChuck Lever return 0; 58109b7b9fccSAndy Adamson 5811fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5812e78291e4SBenny Halevy if (!status) 5813e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5814e78291e4SBenny Halevy if (unlikely(status)) 5815fc01cea9SAndy Adamson goto out_err; 58169b7b9fccSAndy Adamson 5817fc01cea9SAndy Adamson /* 5818fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5819fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5820fc01cea9SAndy Adamson */ 5821fdcb4577STrond Myklebust status = -EREMOTEIO; 5822e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5823fc01cea9SAndy Adamson 5824e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5825fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5826fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5827fc01cea9SAndy Adamson goto out_err; 5828fc01cea9SAndy Adamson } 5829e78291e4SBenny Halevy 5830c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5831c0eae66eSBenny Halevy if (unlikely(!p)) 5832c0eae66eSBenny Halevy goto out_overflow; 5833e78291e4SBenny Halevy 5834fc01cea9SAndy Adamson /* seqid */ 58356f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5836dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5837fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5838fc01cea9SAndy Adamson goto out_err; 5839fc01cea9SAndy Adamson } 5840fc01cea9SAndy Adamson /* slot id */ 58416f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5842df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5843fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5844fc01cea9SAndy Adamson goto out_err; 5845fc01cea9SAndy Adamson } 5846da0507b7STrond Myklebust /* highest slot id */ 5847da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5848464ee9f9STrond Myklebust /* target highest slot id */ 5849464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 58500629e370SAlexandros Batsakis /* result flags */ 58510629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5852fc01cea9SAndy Adamson status = 0; 5853fc01cea9SAndy Adamson out_err: 5854fc01cea9SAndy Adamson res->sr_status = status; 5855fc01cea9SAndy Adamson return status; 5856c0eae66eSBenny Halevy out_overflow: 5857c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5858c0eae66eSBenny Halevy status = -EIO; 5859c0eae66eSBenny Halevy goto out_err; 5860fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 58619b7b9fccSAndy Adamson return 0; 5862fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 58639b7b9fccSAndy Adamson } 58649b7b9fccSAndy Adamson 5865b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 586693b717fdSTrond Myklebust static int decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 586793b717fdSTrond Myklebust { 586893b717fdSTrond Myklebust stateid->type = NFS4_LAYOUT_STATEID_TYPE; 586993b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 587093b717fdSTrond Myklebust } 587193b717fdSTrond Myklebust 5872b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 58734e590803STrond Myklebust struct nfs4_getdeviceinfo_res *res) 5874b1f69b75SAndy Adamson { 58754e590803STrond Myklebust struct pnfs_device *pdev = res->pdev; 5876b1f69b75SAndy Adamson __be32 *p; 5877b1f69b75SAndy Adamson uint32_t len, type; 5878b1f69b75SAndy Adamson int status; 5879b1f69b75SAndy Adamson 5880b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5881b1f69b75SAndy Adamson if (status) { 5882b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5883b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5884b1f69b75SAndy Adamson if (unlikely(!p)) 5885b1f69b75SAndy Adamson goto out_overflow; 5886b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5887b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5888b1f69b75SAndy Adamson __func__, pdev->mincount); 5889b1f69b75SAndy Adamson } 5890b1f69b75SAndy Adamson return status; 5891b1f69b75SAndy Adamson } 5892b1f69b75SAndy Adamson 5893b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5894b1f69b75SAndy Adamson if (unlikely(!p)) 5895b1f69b75SAndy Adamson goto out_overflow; 5896b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5897b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5898b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5899b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5900b1f69b75SAndy Adamson return -EINVAL; 5901b1f69b75SAndy Adamson } 5902b1f69b75SAndy Adamson /* 5903b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5904b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5905b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5906b1f69b75SAndy Adamson */ 5907b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 590813fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 590913fe4ba1STrond Myklebust goto out_overflow; 5910b1f69b75SAndy Adamson 5911b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5912b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5913b1f69b75SAndy Adamson if (unlikely(!p)) 5914b1f69b75SAndy Adamson goto out_overflow; 5915b1f69b75SAndy Adamson len = be32_to_cpup(p); 5916b1f69b75SAndy Adamson if (len) { 5917ead00597SChuck Lever uint32_t i; 5918b1f69b75SAndy Adamson 5919b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5920b1f69b75SAndy Adamson if (unlikely(!p)) 5921b1f69b75SAndy Adamson goto out_overflow; 592284c9dee3SChristoph Hellwig 59234e590803STrond Myklebust res->notification = be32_to_cpup(p++); 592484c9dee3SChristoph Hellwig for (i = 1; i < len; i++) { 592584c9dee3SChristoph Hellwig if (be32_to_cpup(p++)) { 592684c9dee3SChristoph Hellwig dprintk("%s: unsupported notification\n", 5927b1f69b75SAndy Adamson __func__); 5928b1f69b75SAndy Adamson return -EIO; 5929b1f69b75SAndy Adamson } 5930b1f69b75SAndy Adamson } 5931b1f69b75SAndy Adamson } 5932b1f69b75SAndy Adamson return 0; 5933b1f69b75SAndy Adamson out_overflow: 5934b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5935b1f69b75SAndy Adamson return -EIO; 5936b1f69b75SAndy Adamson } 5937b1f69b75SAndy Adamson 5938b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5939b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5940b1f69b75SAndy Adamson { 5941b1f69b75SAndy Adamson __be32 *p; 5942b1f69b75SAndy Adamson int status; 5943b1f69b75SAndy Adamson u32 layout_count; 594464bd577eSTrond Myklebust u32 recvd; 5945b1f69b75SAndy Adamson 5946b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5947b1f69b75SAndy Adamson if (status) 5948b1f69b75SAndy Adamson return status; 5949ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5950b1f69b75SAndy Adamson if (unlikely(!p)) 5951b1f69b75SAndy Adamson goto out_overflow; 5952ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 595393b717fdSTrond Myklebust decode_layout_stateid(xdr, &res->stateid); 5954ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5955ea9d23f5STrond Myklebust if (unlikely(!p)) 5956ea9d23f5STrond Myklebust goto out_overflow; 5957b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5958b1f69b75SAndy Adamson if (!layout_count) { 5959b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5960b1f69b75SAndy Adamson __func__); 5961b1f69b75SAndy Adamson return -EINVAL; 5962b1f69b75SAndy Adamson } 5963b1f69b75SAndy Adamson 596435124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5965b1f69b75SAndy Adamson if (unlikely(!p)) 5966b1f69b75SAndy Adamson goto out_overflow; 5967b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5968b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5969b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5970b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 597135124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5972b1f69b75SAndy Adamson 5973b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5974b1f69b75SAndy Adamson __func__, 5975b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5976b1f69b75SAndy Adamson (unsigned long)res->range.length, 5977b1f69b75SAndy Adamson res->range.iomode, 5978b1f69b75SAndy Adamson res->type, 597935124a09SWeston Andros Adamson res->layoutp->len); 5980b1f69b75SAndy Adamson 598164bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 598235124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 598335124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 598435124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 598535124a09SWeston Andros Adamson res->layoutp->len, recvd); 598635124a09SWeston Andros Adamson return -EINVAL; 598735124a09SWeston Andros Adamson } 598835124a09SWeston Andros Adamson 5989b1f69b75SAndy Adamson if (layout_count > 1) { 5990b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5991b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5992b1f69b75SAndy Adamson * the client may see a response that is less than the 5993b1f69b75SAndy Adamson * minimum it requested. 5994b1f69b75SAndy Adamson */ 5995b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5996b1f69b75SAndy Adamson __func__, layout_count); 5997b1f69b75SAndy Adamson } 5998b1f69b75SAndy Adamson 5999b1f69b75SAndy Adamson return 0; 6000b1f69b75SAndy Adamson out_overflow: 6001b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 6002b1f69b75SAndy Adamson return -EIO; 6003b1f69b75SAndy Adamson } 6004863a3c6cSAndy Adamson 6005cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 6006cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6007cbe82603SBenny Halevy { 6008cbe82603SBenny Halevy __be32 *p; 6009cbe82603SBenny Halevy int status; 6010cbe82603SBenny Halevy 6011cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 6012cbe82603SBenny Halevy if (status) 6013cbe82603SBenny Halevy return status; 6014cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 6015cbe82603SBenny Halevy if (unlikely(!p)) 6016cbe82603SBenny Halevy goto out_overflow; 6017cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 6018cbe82603SBenny Halevy if (res->lrs_present) 601993b717fdSTrond Myklebust status = decode_layout_stateid(xdr, &res->stateid); 6020cbe82603SBenny Halevy return status; 6021cbe82603SBenny Halevy out_overflow: 6022cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 6023cbe82603SBenny Halevy return -EIO; 6024cbe82603SBenny Halevy } 6025cbe82603SBenny Halevy 6026863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 6027863a3c6cSAndy Adamson struct rpc_rqst *req, 6028863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6029863a3c6cSAndy Adamson { 6030863a3c6cSAndy Adamson __be32 *p; 6031863a3c6cSAndy Adamson __u32 sizechanged; 6032863a3c6cSAndy Adamson int status; 6033863a3c6cSAndy Adamson 6034863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 6035db29c089SAndy Adamson res->status = status; 6036863a3c6cSAndy Adamson if (status) 6037863a3c6cSAndy Adamson return status; 6038863a3c6cSAndy Adamson 6039863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 6040863a3c6cSAndy Adamson if (unlikely(!p)) 6041863a3c6cSAndy Adamson goto out_overflow; 6042863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 6043863a3c6cSAndy Adamson 6044863a3c6cSAndy Adamson if (sizechanged) { 6045863a3c6cSAndy Adamson /* throw away new size */ 6046863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 6047863a3c6cSAndy Adamson if (unlikely(!p)) 6048863a3c6cSAndy Adamson goto out_overflow; 6049863a3c6cSAndy Adamson } 6050863a3c6cSAndy Adamson return 0; 6051863a3c6cSAndy Adamson out_overflow: 6052863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 6053863a3c6cSAndy Adamson return -EIO; 6054863a3c6cSAndy Adamson } 60557d974794SBryan Schumaker 60567d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 60577d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 60587d974794SBryan Schumaker { 60597d974794SBryan Schumaker __be32 *p; 60607d974794SBryan Schumaker int status; 60617d974794SBryan Schumaker int num_res; 60627d974794SBryan Schumaker 60637d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 60647d974794SBryan Schumaker if (status) 60657d974794SBryan Schumaker return status; 60667d974794SBryan Schumaker 60677d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60687d974794SBryan Schumaker if (unlikely(!p)) 60697d974794SBryan Schumaker goto out_overflow; 60707d974794SBryan Schumaker num_res = be32_to_cpup(p++); 60717d974794SBryan Schumaker if (num_res != 1) 60727d974794SBryan Schumaker goto out; 60737d974794SBryan Schumaker 60747d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60757d974794SBryan Schumaker if (unlikely(!p)) 60767d974794SBryan Schumaker goto out_overflow; 60777d974794SBryan Schumaker res->status = be32_to_cpup(p++); 60781cab0652SBryan Schumaker 60791cab0652SBryan Schumaker return status; 60807d974794SBryan Schumaker out_overflow: 60817d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 60827d974794SBryan Schumaker out: 60837d974794SBryan Schumaker return -EIO; 60847d974794SBryan Schumaker } 60859aeda35fSBryan Schumaker 60869aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 60879aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 60889aeda35fSBryan Schumaker { 60899f79fb48SAndy Adamson res->status = decode_op_hdr(xdr, OP_FREE_STATEID); 60909aeda35fSBryan Schumaker return res->status; 60919aeda35fSBryan Schumaker } 6092b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 6093b1f69b75SAndy Adamson 60941da177e4SLinus Torvalds /* 609549c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 609649c2559eSBenny Halevy */ 609749c2559eSBenny Halevy 609849c2559eSBenny Halevy /* 60991da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 61001da177e4SLinus Torvalds */ 6101bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 6102bf269551SChuck Lever struct xdr_stream *xdr, 6103bf269551SChuck Lever struct nfs_closeres *res) 61041da177e4SLinus Torvalds { 61051da177e4SLinus Torvalds struct compound_hdr hdr; 61061da177e4SLinus Torvalds int status; 61071da177e4SLinus Torvalds 6108bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61091da177e4SLinus Torvalds if (status) 61101da177e4SLinus Torvalds goto out; 6111bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61129b7b9fccSAndy Adamson if (status) 61139b7b9fccSAndy Adamson goto out; 6114bf269551SChuck Lever status = decode_putfh(xdr); 61151da177e4SLinus Torvalds if (status) 61161da177e4SLinus Torvalds goto out; 6117bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 6118516a6af6STrond Myklebust if (status != 0) 6119516a6af6STrond Myklebust goto out; 61206926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 61211da177e4SLinus Torvalds out: 61221da177e4SLinus Torvalds return status; 61231da177e4SLinus Torvalds } 61241da177e4SLinus Torvalds 61251da177e4SLinus Torvalds /* 61261da177e4SLinus Torvalds * Decode ACCESS response 61271da177e4SLinus Torvalds */ 6128bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6129bf269551SChuck Lever struct nfs4_accessres *res) 61301da177e4SLinus Torvalds { 61311da177e4SLinus Torvalds struct compound_hdr hdr; 61321da177e4SLinus Torvalds int status; 61331da177e4SLinus Torvalds 6134bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61359b7b9fccSAndy Adamson if (status) 61369b7b9fccSAndy Adamson goto out; 6137bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61389b7b9fccSAndy Adamson if (status) 61391da177e4SLinus Torvalds goto out; 6140bf269551SChuck Lever status = decode_putfh(xdr); 614176b32999STrond Myklebust if (status != 0) 614276b32999STrond Myklebust goto out; 61436168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 614476b32999STrond Myklebust if (status != 0) 614576b32999STrond Myklebust goto out; 61466926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 61471da177e4SLinus Torvalds out: 61481da177e4SLinus Torvalds return status; 61491da177e4SLinus Torvalds } 61501da177e4SLinus Torvalds 61511da177e4SLinus Torvalds /* 61521da177e4SLinus Torvalds * Decode LOOKUP response 61531da177e4SLinus Torvalds */ 6154bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6155bf269551SChuck Lever struct nfs4_lookup_res *res) 61561da177e4SLinus Torvalds { 61571da177e4SLinus Torvalds struct compound_hdr hdr; 61581da177e4SLinus Torvalds int status; 61591da177e4SLinus Torvalds 6160bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61619b7b9fccSAndy Adamson if (status) 61629b7b9fccSAndy Adamson goto out; 6163bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61649b7b9fccSAndy Adamson if (status) 61651da177e4SLinus Torvalds goto out; 6166bf269551SChuck Lever status = decode_putfh(xdr); 6167bf269551SChuck Lever if (status) 61681da177e4SLinus Torvalds goto out; 6169bf269551SChuck Lever status = decode_lookup(xdr); 6170bf269551SChuck Lever if (status) 61711da177e4SLinus Torvalds goto out; 6172bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6173bf269551SChuck Lever if (status) 61741da177e4SLinus Torvalds goto out; 6175aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 61761da177e4SLinus Torvalds out: 61771da177e4SLinus Torvalds return status; 61781da177e4SLinus Torvalds } 61791da177e4SLinus Torvalds 61801da177e4SLinus Torvalds /* 61811da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 61821da177e4SLinus Torvalds */ 6183bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 6184bf269551SChuck Lever struct xdr_stream *xdr, 6185bf269551SChuck Lever struct nfs4_lookup_res *res) 61861da177e4SLinus Torvalds { 61871da177e4SLinus Torvalds struct compound_hdr hdr; 61881da177e4SLinus Torvalds int status; 61891da177e4SLinus Torvalds 6190bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61919b7b9fccSAndy Adamson if (status) 61929b7b9fccSAndy Adamson goto out; 6193bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61949b7b9fccSAndy Adamson if (status) 61951da177e4SLinus Torvalds goto out; 6196bf269551SChuck Lever status = decode_putrootfh(xdr); 6197bf269551SChuck Lever if (status) 61981da177e4SLinus Torvalds goto out; 6199bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6200bf269551SChuck Lever if (status == 0) 6201aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, 6202aa9c2669SDavid Quigley res->label, res->server); 62031da177e4SLinus Torvalds out: 62041da177e4SLinus Torvalds return status; 62051da177e4SLinus Torvalds } 62061da177e4SLinus Torvalds 62071da177e4SLinus Torvalds /* 62081da177e4SLinus Torvalds * Decode REMOVE response 62091da177e4SLinus Torvalds */ 6210bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6211bf269551SChuck Lever struct nfs_removeres *res) 62121da177e4SLinus Torvalds { 62131da177e4SLinus Torvalds struct compound_hdr hdr; 62141da177e4SLinus Torvalds int status; 62151da177e4SLinus Torvalds 6216bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62179b7b9fccSAndy Adamson if (status) 62189b7b9fccSAndy Adamson goto out; 6219bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62209b7b9fccSAndy Adamson if (status) 62211da177e4SLinus Torvalds goto out; 6222bf269551SChuck Lever status = decode_putfh(xdr); 6223bf269551SChuck Lever if (status) 622416e42959STrond Myklebust goto out; 6225bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 62261da177e4SLinus Torvalds out: 62271da177e4SLinus Torvalds return status; 62281da177e4SLinus Torvalds } 62291da177e4SLinus Torvalds 62301da177e4SLinus Torvalds /* 62311da177e4SLinus Torvalds * Decode RENAME response 62321da177e4SLinus Torvalds */ 6233bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6234bf269551SChuck Lever struct nfs_renameres *res) 62351da177e4SLinus Torvalds { 62361da177e4SLinus Torvalds struct compound_hdr hdr; 62371da177e4SLinus Torvalds int status; 62381da177e4SLinus Torvalds 6239bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62409b7b9fccSAndy Adamson if (status) 62419b7b9fccSAndy Adamson goto out; 6242bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62439b7b9fccSAndy Adamson if (status) 62441da177e4SLinus Torvalds goto out; 6245bf269551SChuck Lever status = decode_putfh(xdr); 6246bf269551SChuck Lever if (status) 62471da177e4SLinus Torvalds goto out; 6248bf269551SChuck Lever status = decode_savefh(xdr); 6249bf269551SChuck Lever if (status) 62501da177e4SLinus Torvalds goto out; 6251bf269551SChuck Lever status = decode_putfh(xdr); 6252bf269551SChuck Lever if (status) 62531da177e4SLinus Torvalds goto out; 6254bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 62551da177e4SLinus Torvalds out: 62561da177e4SLinus Torvalds return status; 62571da177e4SLinus Torvalds } 62581da177e4SLinus Torvalds 62591da177e4SLinus Torvalds /* 62601da177e4SLinus Torvalds * Decode LINK response 62611da177e4SLinus Torvalds */ 6262bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6263bf269551SChuck Lever struct nfs4_link_res *res) 62641da177e4SLinus Torvalds { 62651da177e4SLinus Torvalds struct compound_hdr hdr; 62661da177e4SLinus Torvalds int status; 62671da177e4SLinus Torvalds 6268bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62699b7b9fccSAndy Adamson if (status) 62709b7b9fccSAndy Adamson goto out; 6271bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62729b7b9fccSAndy Adamson if (status) 62731da177e4SLinus Torvalds goto out; 6274bf269551SChuck Lever status = decode_putfh(xdr); 6275bf269551SChuck Lever if (status) 62761da177e4SLinus Torvalds goto out; 6277bf269551SChuck Lever status = decode_savefh(xdr); 6278bf269551SChuck Lever if (status) 62791da177e4SLinus Torvalds goto out; 6280bf269551SChuck Lever status = decode_putfh(xdr); 6281bf269551SChuck Lever if (status) 62821da177e4SLinus Torvalds goto out; 6283bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6284bf269551SChuck Lever if (status) 628591ba2eeeSTrond Myklebust goto out; 628691ba2eeeSTrond Myklebust /* 628791ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 628891ba2eeeSTrond Myklebust * filehandle. 628991ba2eeeSTrond Myklebust */ 6290bf269551SChuck Lever status = decode_restorefh(xdr); 6291bf269551SChuck Lever if (status) 629291ba2eeeSTrond Myklebust goto out; 6293aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62941da177e4SLinus Torvalds out: 62951da177e4SLinus Torvalds return status; 62961da177e4SLinus Torvalds } 62971da177e4SLinus Torvalds 62981da177e4SLinus Torvalds /* 62991da177e4SLinus Torvalds * Decode CREATE response 63001da177e4SLinus Torvalds */ 6301bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6302bf269551SChuck Lever struct nfs4_create_res *res) 63031da177e4SLinus Torvalds { 63041da177e4SLinus Torvalds struct compound_hdr hdr; 63051da177e4SLinus Torvalds int status; 63061da177e4SLinus Torvalds 6307bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63089b7b9fccSAndy Adamson if (status) 63099b7b9fccSAndy Adamson goto out; 6310bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63119b7b9fccSAndy Adamson if (status) 63121da177e4SLinus Torvalds goto out; 6313bf269551SChuck Lever status = decode_putfh(xdr); 6314bf269551SChuck Lever if (status) 63151da177e4SLinus Torvalds goto out; 6316bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6317bf269551SChuck Lever if (status) 63181da177e4SLinus Torvalds goto out; 6319bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6320bf269551SChuck Lever if (status) 63211da177e4SLinus Torvalds goto out; 6322aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 63231da177e4SLinus Torvalds out: 63241da177e4SLinus Torvalds return status; 63251da177e4SLinus Torvalds } 63261da177e4SLinus Torvalds 63271da177e4SLinus Torvalds /* 63281da177e4SLinus Torvalds * Decode SYMLINK response 63291da177e4SLinus Torvalds */ 6330bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6331bf269551SChuck Lever struct nfs4_create_res *res) 63321da177e4SLinus Torvalds { 6333bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 63341da177e4SLinus Torvalds } 63351da177e4SLinus Torvalds 63361da177e4SLinus Torvalds /* 63371da177e4SLinus Torvalds * Decode GETATTR response 63381da177e4SLinus Torvalds */ 6339bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6340bf269551SChuck Lever struct nfs4_getattr_res *res) 63411da177e4SLinus Torvalds { 63421da177e4SLinus Torvalds struct compound_hdr hdr; 63431da177e4SLinus Torvalds int status; 63441da177e4SLinus Torvalds 6345bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63461da177e4SLinus Torvalds if (status) 63471da177e4SLinus Torvalds goto out; 6348bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63499b7b9fccSAndy Adamson if (status) 63509b7b9fccSAndy Adamson goto out; 6351bf269551SChuck Lever status = decode_putfh(xdr); 63521da177e4SLinus Torvalds if (status) 63531da177e4SLinus Torvalds goto out; 6354aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 63551da177e4SLinus Torvalds out: 63561da177e4SLinus Torvalds return status; 63571da177e4SLinus Torvalds } 63581da177e4SLinus Torvalds 635923ec6965SJ. Bruce Fields /* 636023ec6965SJ. Bruce Fields * Encode an SETACL request 636123ec6965SJ. Bruce Fields */ 63629f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 63639f06c719SChuck Lever struct nfs_setaclargs *args) 636423ec6965SJ. Bruce Fields { 636523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 636666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 636723ec6965SJ. Bruce Fields }; 636823ec6965SJ. Bruce Fields 63699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 63709f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 63719f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 63729f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6373d017931cSAndy Adamson encode_nops(&hdr); 637423ec6965SJ. Bruce Fields } 637505d564feSAndy Adamson 637623ec6965SJ. Bruce Fields /* 637723ec6965SJ. Bruce Fields * Decode SETACL response 637823ec6965SJ. Bruce Fields */ 637923ec6965SJ. Bruce Fields static int 6380bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 638173c403a9SBenny Halevy struct nfs_setaclres *res) 638223ec6965SJ. Bruce Fields { 638323ec6965SJ. Bruce Fields struct compound_hdr hdr; 638423ec6965SJ. Bruce Fields int status; 638523ec6965SJ. Bruce Fields 6386bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 638723ec6965SJ. Bruce Fields if (status) 638823ec6965SJ. Bruce Fields goto out; 6389bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63909b7b9fccSAndy Adamson if (status) 63919b7b9fccSAndy Adamson goto out; 6392bf269551SChuck Lever status = decode_putfh(xdr); 639323ec6965SJ. Bruce Fields if (status) 639423ec6965SJ. Bruce Fields goto out; 6395bf269551SChuck Lever status = decode_setattr(xdr); 639623ec6965SJ. Bruce Fields out: 639723ec6965SJ. Bruce Fields return status; 639823ec6965SJ. Bruce Fields } 63991da177e4SLinus Torvalds 64001da177e4SLinus Torvalds /* 6401029d105eSJ. Bruce Fields * Decode GETACL response 6402029d105eSJ. Bruce Fields */ 6403029d105eSJ. Bruce Fields static int 6404bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6405663c79b3SBenny Halevy struct nfs_getaclres *res) 6406029d105eSJ. Bruce Fields { 6407029d105eSJ. Bruce Fields struct compound_hdr hdr; 6408029d105eSJ. Bruce Fields int status; 6409029d105eSJ. Bruce Fields 6410331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6411331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6412331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6413331818f1STrond Myklebust } 6414bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6415029d105eSJ. Bruce Fields if (status) 6416029d105eSJ. Bruce Fields goto out; 6417bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64189b7b9fccSAndy Adamson if (status) 64199b7b9fccSAndy Adamson goto out; 6420bf269551SChuck Lever status = decode_putfh(xdr); 6421029d105eSJ. Bruce Fields if (status) 6422029d105eSJ. Bruce Fields goto out; 6423bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6424029d105eSJ. Bruce Fields 6425029d105eSJ. Bruce Fields out: 6426029d105eSJ. Bruce Fields return status; 6427029d105eSJ. Bruce Fields } 6428029d105eSJ. Bruce Fields 6429029d105eSJ. Bruce Fields /* 64301da177e4SLinus Torvalds * Decode CLOSE response 64311da177e4SLinus Torvalds */ 6432bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6433bf269551SChuck Lever struct nfs_closeres *res) 64341da177e4SLinus Torvalds { 64351da177e4SLinus Torvalds struct compound_hdr hdr; 64361da177e4SLinus Torvalds int status; 64371da177e4SLinus Torvalds 6438bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64391da177e4SLinus Torvalds if (status) 64401da177e4SLinus Torvalds goto out; 6441bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64429b7b9fccSAndy Adamson if (status) 64439b7b9fccSAndy Adamson goto out; 6444bf269551SChuck Lever status = decode_putfh(xdr); 64451da177e4SLinus Torvalds if (status) 64461da177e4SLinus Torvalds goto out; 6447bf269551SChuck Lever status = decode_close(xdr, res); 6448516a6af6STrond Myklebust if (status != 0) 6449516a6af6STrond Myklebust goto out; 6450516a6af6STrond Myklebust /* 6451516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6452516a6af6STrond Myklebust * in which case the getattr call will fail with 6453516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6454516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6455516a6af6STrond Myklebust */ 64566926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64571da177e4SLinus Torvalds out: 64581da177e4SLinus Torvalds return status; 64591da177e4SLinus Torvalds } 64601da177e4SLinus Torvalds 64611da177e4SLinus Torvalds /* 64621da177e4SLinus Torvalds * Decode OPEN response 64631da177e4SLinus Torvalds */ 6464bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6465bf269551SChuck Lever struct nfs_openres *res) 64661da177e4SLinus Torvalds { 64671da177e4SLinus Torvalds struct compound_hdr hdr; 64681da177e4SLinus Torvalds int status; 64691da177e4SLinus Torvalds 6470bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64711da177e4SLinus Torvalds if (status) 64721da177e4SLinus Torvalds goto out; 6473bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64749b7b9fccSAndy Adamson if (status) 64759b7b9fccSAndy Adamson goto out; 6476bf269551SChuck Lever status = decode_putfh(xdr); 64771da177e4SLinus Torvalds if (status) 64781da177e4SLinus Torvalds goto out; 6479bf269551SChuck Lever status = decode_open(xdr, res); 64801da177e4SLinus Torvalds if (status) 64811da177e4SLinus Torvalds goto out; 648201913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 648301913b49SWeston Andros Adamson if (status) 64841da177e4SLinus Torvalds goto out; 6485ae2bb032SWeston Andros Adamson if (res->access_request) 64866168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 6487aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server); 64881da177e4SLinus Torvalds out: 64891da177e4SLinus Torvalds return status; 64901da177e4SLinus Torvalds } 64911da177e4SLinus Torvalds 64921da177e4SLinus Torvalds /* 64931da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 64941da177e4SLinus Torvalds */ 6495bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6496bf269551SChuck Lever struct xdr_stream *xdr, 6497bf269551SChuck Lever struct nfs_open_confirmres *res) 64981da177e4SLinus Torvalds { 64991da177e4SLinus Torvalds struct compound_hdr hdr; 65001da177e4SLinus Torvalds int status; 65011da177e4SLinus Torvalds 6502bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65031da177e4SLinus Torvalds if (status) 65041da177e4SLinus Torvalds goto out; 6505bf269551SChuck Lever status = decode_putfh(xdr); 65061da177e4SLinus Torvalds if (status) 65071da177e4SLinus Torvalds goto out; 6508bf269551SChuck Lever status = decode_open_confirm(xdr, res); 65091da177e4SLinus Torvalds out: 65101da177e4SLinus Torvalds return status; 65111da177e4SLinus Torvalds } 65121da177e4SLinus Torvalds 65131da177e4SLinus Torvalds /* 65141da177e4SLinus Torvalds * Decode OPEN response 65151da177e4SLinus Torvalds */ 6516bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6517bf269551SChuck Lever struct xdr_stream *xdr, 6518bf269551SChuck Lever struct nfs_openres *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_open(xdr, res); 6533864472e9STrond Myklebust if (status) 6534864472e9STrond Myklebust goto out; 6535ae2bb032SWeston Andros Adamson if (res->access_request) 65366168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 65376926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 65381da177e4SLinus Torvalds out: 65391da177e4SLinus Torvalds return status; 65401da177e4SLinus Torvalds } 65411da177e4SLinus Torvalds 65421da177e4SLinus Torvalds /* 65431da177e4SLinus Torvalds * Decode SETATTR response 65441da177e4SLinus Torvalds */ 6545bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6546bf269551SChuck Lever struct xdr_stream *xdr, 6547bf269551SChuck Lever struct nfs_setattrres *res) 65481da177e4SLinus Torvalds { 65491da177e4SLinus Torvalds struct compound_hdr hdr; 65501da177e4SLinus Torvalds int status; 65511da177e4SLinus Torvalds 6552bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65531da177e4SLinus Torvalds if (status) 65541da177e4SLinus Torvalds goto out; 6555bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65569b7b9fccSAndy Adamson if (status) 65579b7b9fccSAndy Adamson goto out; 6558bf269551SChuck Lever status = decode_putfh(xdr); 65591da177e4SLinus Torvalds if (status) 65601da177e4SLinus Torvalds goto out; 6561bf269551SChuck Lever status = decode_setattr(xdr); 65621da177e4SLinus Torvalds if (status) 65631da177e4SLinus Torvalds goto out; 6564aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 65651da177e4SLinus Torvalds out: 65661da177e4SLinus Torvalds return status; 65671da177e4SLinus Torvalds } 65681da177e4SLinus Torvalds 65691da177e4SLinus Torvalds /* 65701da177e4SLinus Torvalds * Decode LOCK response 65711da177e4SLinus Torvalds */ 6572bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6573bf269551SChuck Lever struct nfs_lock_res *res) 65741da177e4SLinus Torvalds { 65751da177e4SLinus Torvalds struct compound_hdr hdr; 65761da177e4SLinus Torvalds int status; 65771da177e4SLinus Torvalds 6578bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65791da177e4SLinus Torvalds if (status) 65801da177e4SLinus Torvalds goto out; 6581bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65829b7b9fccSAndy Adamson if (status) 65839b7b9fccSAndy Adamson goto out; 6584bf269551SChuck Lever status = decode_putfh(xdr); 65851da177e4SLinus Torvalds if (status) 65861da177e4SLinus Torvalds goto out; 6587bf269551SChuck Lever status = decode_lock(xdr, res); 65881da177e4SLinus Torvalds out: 65891da177e4SLinus Torvalds return status; 65901da177e4SLinus Torvalds } 65911da177e4SLinus Torvalds 65921da177e4SLinus Torvalds /* 65931da177e4SLinus Torvalds * Decode LOCKT response 65941da177e4SLinus Torvalds */ 6595bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6596bf269551SChuck Lever struct nfs_lockt_res *res) 65971da177e4SLinus Torvalds { 65981da177e4SLinus Torvalds struct compound_hdr hdr; 65991da177e4SLinus Torvalds int status; 66001da177e4SLinus Torvalds 6601bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66021da177e4SLinus Torvalds if (status) 66031da177e4SLinus Torvalds goto out; 6604bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66059b7b9fccSAndy Adamson if (status) 66069b7b9fccSAndy Adamson goto out; 6607bf269551SChuck Lever status = decode_putfh(xdr); 66081da177e4SLinus Torvalds if (status) 66091da177e4SLinus Torvalds goto out; 6610bf269551SChuck Lever status = decode_lockt(xdr, res); 66111da177e4SLinus Torvalds out: 66121da177e4SLinus Torvalds return status; 66131da177e4SLinus Torvalds } 66141da177e4SLinus Torvalds 66151da177e4SLinus Torvalds /* 66161da177e4SLinus Torvalds * Decode LOCKU response 66171da177e4SLinus Torvalds */ 6618bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6619bf269551SChuck Lever struct nfs_locku_res *res) 66201da177e4SLinus Torvalds { 66211da177e4SLinus Torvalds struct compound_hdr hdr; 66221da177e4SLinus Torvalds int status; 66231da177e4SLinus Torvalds 6624bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66251da177e4SLinus Torvalds if (status) 66261da177e4SLinus Torvalds goto out; 6627bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66289b7b9fccSAndy Adamson if (status) 66299b7b9fccSAndy Adamson goto out; 6630bf269551SChuck Lever status = decode_putfh(xdr); 66311da177e4SLinus Torvalds if (status) 66321da177e4SLinus Torvalds goto out; 6633bf269551SChuck Lever status = decode_locku(xdr, res); 66341da177e4SLinus Torvalds out: 66351da177e4SLinus Torvalds return status; 66361da177e4SLinus Torvalds } 66371da177e4SLinus Torvalds 6638bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6639bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6640d3c7b7ccSTrond Myklebust { 6641d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6642d3c7b7ccSTrond Myklebust int status; 6643d3c7b7ccSTrond Myklebust 6644bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6645d3c7b7ccSTrond Myklebust if (!status) 6646bf269551SChuck Lever status = decode_release_lockowner(xdr); 6647d3c7b7ccSTrond Myklebust return status; 6648d3c7b7ccSTrond Myklebust } 6649d3c7b7ccSTrond Myklebust 66501da177e4SLinus Torvalds /* 66511da177e4SLinus Torvalds * Decode READLINK response 66521da177e4SLinus Torvalds */ 6653bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6654bf269551SChuck Lever struct xdr_stream *xdr, 6655f50c7000SBenny Halevy struct nfs4_readlink_res *res) 66561da177e4SLinus Torvalds { 66571da177e4SLinus Torvalds struct compound_hdr hdr; 66581da177e4SLinus Torvalds int status; 66591da177e4SLinus Torvalds 6660bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66611da177e4SLinus Torvalds if (status) 66621da177e4SLinus Torvalds goto out; 6663bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66649b7b9fccSAndy Adamson if (status) 66659b7b9fccSAndy Adamson goto out; 6666bf269551SChuck Lever status = decode_putfh(xdr); 66671da177e4SLinus Torvalds if (status) 66681da177e4SLinus Torvalds goto out; 6669bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 66701da177e4SLinus Torvalds out: 66711da177e4SLinus Torvalds return status; 66721da177e4SLinus Torvalds } 66731da177e4SLinus Torvalds 66741da177e4SLinus Torvalds /* 66751da177e4SLinus Torvalds * Decode READDIR response 66761da177e4SLinus Torvalds */ 6677bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6678bf269551SChuck Lever struct nfs4_readdir_res *res) 66791da177e4SLinus Torvalds { 66801da177e4SLinus Torvalds struct compound_hdr hdr; 66811da177e4SLinus Torvalds int status; 66821da177e4SLinus Torvalds 6683bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66841da177e4SLinus Torvalds if (status) 66851da177e4SLinus Torvalds goto out; 6686bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66879b7b9fccSAndy Adamson if (status) 66889b7b9fccSAndy Adamson goto out; 6689bf269551SChuck Lever status = decode_putfh(xdr); 66901da177e4SLinus Torvalds if (status) 66911da177e4SLinus Torvalds goto out; 6692bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 66931da177e4SLinus Torvalds out: 66941da177e4SLinus Torvalds return status; 66951da177e4SLinus Torvalds } 66961da177e4SLinus Torvalds 66971da177e4SLinus Torvalds /* 66981da177e4SLinus Torvalds * Decode Read response 66991da177e4SLinus Torvalds */ 6700bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 67019137bdf3SAnna Schumaker struct nfs_pgio_res *res) 67021da177e4SLinus Torvalds { 67031da177e4SLinus Torvalds struct compound_hdr hdr; 67041da177e4SLinus Torvalds int status; 67051da177e4SLinus Torvalds 6706bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6707aabff4ddSPeng Tao res->op_status = hdr.status; 67081da177e4SLinus Torvalds if (status) 67091da177e4SLinus Torvalds goto out; 6710bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67119b7b9fccSAndy Adamson if (status) 67129b7b9fccSAndy Adamson goto out; 6713bf269551SChuck Lever status = decode_putfh(xdr); 67141da177e4SLinus Torvalds if (status) 67151da177e4SLinus Torvalds goto out; 6716bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 67171da177e4SLinus Torvalds if (!status) 67181da177e4SLinus Torvalds status = res->count; 67191da177e4SLinus Torvalds out: 67201da177e4SLinus Torvalds return status; 67211da177e4SLinus Torvalds } 67221da177e4SLinus Torvalds 67231da177e4SLinus Torvalds /* 67241da177e4SLinus Torvalds * Decode WRITE response 67251da177e4SLinus Torvalds */ 6726bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 67279137bdf3SAnna Schumaker struct nfs_pgio_res *res) 67281da177e4SLinus Torvalds { 67291da177e4SLinus Torvalds struct compound_hdr hdr; 67301da177e4SLinus Torvalds int status; 67311da177e4SLinus Torvalds 6732bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6733aabff4ddSPeng Tao res->op_status = hdr.status; 67341da177e4SLinus Torvalds if (status) 67351da177e4SLinus Torvalds goto out; 6736bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67379b7b9fccSAndy Adamson if (status) 67389b7b9fccSAndy Adamson goto out; 6739bf269551SChuck Lever status = decode_putfh(xdr); 67401da177e4SLinus Torvalds if (status) 67411da177e4SLinus Torvalds goto out; 6742bf269551SChuck Lever status = decode_write(xdr, res); 67434f9838c7STrond Myklebust if (status) 67444f9838c7STrond Myklebust goto out; 67457ffd1064SFred Isaman if (res->fattr) 67466926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 67471da177e4SLinus Torvalds if (!status) 67481da177e4SLinus Torvalds status = res->count; 67491da177e4SLinus Torvalds out: 67501da177e4SLinus Torvalds return status; 67511da177e4SLinus Torvalds } 67521da177e4SLinus Torvalds 67531da177e4SLinus Torvalds /* 67541da177e4SLinus Torvalds * Decode COMMIT response 67551da177e4SLinus Torvalds */ 6756bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 67570b7c0153SFred Isaman struct nfs_commitres *res) 67581da177e4SLinus Torvalds { 67591da177e4SLinus Torvalds struct compound_hdr hdr; 67601da177e4SLinus Torvalds int status; 67611da177e4SLinus Torvalds 6762bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6763aabff4ddSPeng Tao res->op_status = hdr.status; 67641da177e4SLinus Torvalds if (status) 67651da177e4SLinus Torvalds goto out; 6766bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67679b7b9fccSAndy Adamson if (status) 67689b7b9fccSAndy Adamson goto out; 6769bf269551SChuck Lever status = decode_putfh(xdr); 67701da177e4SLinus Torvalds if (status) 67711da177e4SLinus Torvalds goto out; 6772bf269551SChuck Lever status = decode_commit(xdr, res); 67731da177e4SLinus Torvalds out: 67741da177e4SLinus Torvalds return status; 67751da177e4SLinus Torvalds } 67761da177e4SLinus Torvalds 67771da177e4SLinus Torvalds /* 67788b173218SRicardo Labiaga * Decode FSINFO response 67791da177e4SLinus Torvalds */ 6780bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 67813dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 67821da177e4SLinus Torvalds { 67831da177e4SLinus Torvalds struct compound_hdr hdr; 67841da177e4SLinus Torvalds int status; 67851da177e4SLinus Torvalds 6786bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67871da177e4SLinus Torvalds if (!status) 6788bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67899b7b9fccSAndy Adamson if (!status) 6790bf269551SChuck Lever status = decode_putfh(xdr); 67911da177e4SLinus Torvalds if (!status) 6792bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 67931da177e4SLinus Torvalds return status; 67941da177e4SLinus Torvalds } 67951da177e4SLinus Torvalds 67961da177e4SLinus Torvalds /* 67978b173218SRicardo Labiaga * Decode PATHCONF response 67981da177e4SLinus Torvalds */ 6799bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6800d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 68011da177e4SLinus Torvalds { 68021da177e4SLinus Torvalds struct compound_hdr hdr; 68031da177e4SLinus Torvalds int status; 68041da177e4SLinus Torvalds 6805bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68061da177e4SLinus Torvalds if (!status) 6807bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68089b7b9fccSAndy Adamson if (!status) 6809bf269551SChuck Lever status = decode_putfh(xdr); 68101da177e4SLinus Torvalds if (!status) 6811bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 68121da177e4SLinus Torvalds return status; 68131da177e4SLinus Torvalds } 68141da177e4SLinus Torvalds 68151da177e4SLinus Torvalds /* 68168b173218SRicardo Labiaga * Decode STATFS response 68171da177e4SLinus Torvalds */ 6818bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 681924ad148aSBenny Halevy struct nfs4_statfs_res *res) 68201da177e4SLinus Torvalds { 68211da177e4SLinus Torvalds struct compound_hdr hdr; 68221da177e4SLinus Torvalds int status; 68231da177e4SLinus Torvalds 6824bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68251da177e4SLinus Torvalds if (!status) 6826bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68279b7b9fccSAndy Adamson if (!status) 6828bf269551SChuck Lever status = decode_putfh(xdr); 68291da177e4SLinus Torvalds if (!status) 6830bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 68311da177e4SLinus Torvalds return status; 68321da177e4SLinus Torvalds } 68331da177e4SLinus Torvalds 68341da177e4SLinus Torvalds /* 68358b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 68361da177e4SLinus Torvalds */ 6837bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6838bf269551SChuck Lever struct xdr_stream *xdr, 6839bf269551SChuck Lever struct nfs4_server_caps_res *res) 68401da177e4SLinus Torvalds { 68411da177e4SLinus Torvalds struct compound_hdr hdr; 68421da177e4SLinus Torvalds int status; 68431da177e4SLinus Torvalds 6844bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68459b7b9fccSAndy Adamson if (status) 68469b7b9fccSAndy Adamson goto out; 6847bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68489b7b9fccSAndy Adamson if (status) 68491da177e4SLinus Torvalds goto out; 6850bf269551SChuck Lever status = decode_putfh(xdr); 6851bf269551SChuck Lever if (status) 68521da177e4SLinus Torvalds goto out; 6853bf269551SChuck Lever status = decode_server_caps(xdr, res); 68541da177e4SLinus Torvalds out: 68551da177e4SLinus Torvalds return status; 68561da177e4SLinus Torvalds } 68571da177e4SLinus Torvalds 68581da177e4SLinus Torvalds /* 68591da177e4SLinus Torvalds * Decode RENEW response 68601da177e4SLinus Torvalds */ 6861bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6862bf269551SChuck Lever void *__unused) 68631da177e4SLinus Torvalds { 68641da177e4SLinus Torvalds struct compound_hdr hdr; 68651da177e4SLinus Torvalds int status; 68661da177e4SLinus Torvalds 6867bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68681da177e4SLinus Torvalds if (!status) 6869bf269551SChuck Lever status = decode_renew(xdr); 68701da177e4SLinus Torvalds return status; 68711da177e4SLinus Torvalds } 68721da177e4SLinus Torvalds 68731da177e4SLinus Torvalds /* 68748b173218SRicardo Labiaga * Decode SETCLIENTID response 68751da177e4SLinus Torvalds */ 6876bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6877bf269551SChuck Lever struct xdr_stream *xdr, 6878bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 68791da177e4SLinus Torvalds { 68801da177e4SLinus Torvalds struct compound_hdr hdr; 68811da177e4SLinus Torvalds int status; 68821da177e4SLinus Torvalds 6883bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68841da177e4SLinus Torvalds if (!status) 6885bf269551SChuck Lever status = decode_setclientid(xdr, res); 68861da177e4SLinus Torvalds return status; 68871da177e4SLinus Torvalds } 68881da177e4SLinus Torvalds 68891da177e4SLinus Torvalds /* 68908b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 68911da177e4SLinus Torvalds */ 6892bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 689383ca7f5aSChuck Lever struct xdr_stream *xdr) 68941da177e4SLinus Torvalds { 68951da177e4SLinus Torvalds struct compound_hdr hdr; 68961da177e4SLinus Torvalds int status; 68971da177e4SLinus Torvalds 6898bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68991da177e4SLinus Torvalds if (!status) 6900bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 69011da177e4SLinus Torvalds return status; 69021da177e4SLinus Torvalds } 69031da177e4SLinus Torvalds 69041da177e4SLinus Torvalds /* 69058b173218SRicardo Labiaga * Decode DELEGRETURN response 69061da177e4SLinus Torvalds */ 6907bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6908bf269551SChuck Lever struct xdr_stream *xdr, 6909bf269551SChuck Lever struct nfs4_delegreturnres *res) 69101da177e4SLinus Torvalds { 69111da177e4SLinus Torvalds struct compound_hdr hdr; 69121da177e4SLinus Torvalds int status; 69131da177e4SLinus Torvalds 6914bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69159b7b9fccSAndy Adamson if (status) 69169b7b9fccSAndy Adamson goto out; 6917bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 69189b7b9fccSAndy Adamson if (status) 6919fa178f29STrond Myklebust goto out; 6920bf269551SChuck Lever status = decode_putfh(xdr); 6921fa178f29STrond Myklebust if (status != 0) 6922fa178f29STrond Myklebust goto out; 6923e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6924556ae3bbSJeff Layton if (status != 0) 6925556ae3bbSJeff Layton goto out; 6926e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6927fa178f29STrond Myklebust out: 69281da177e4SLinus Torvalds return status; 69291da177e4SLinus Torvalds } 69301da177e4SLinus Torvalds 6931683b57b4STrond Myklebust /* 69328b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6933683b57b4STrond Myklebust */ 6934bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6935bf269551SChuck Lever struct xdr_stream *xdr, 693622958463SBenny Halevy struct nfs4_fs_locations_res *res) 6937683b57b4STrond Myklebust { 6938683b57b4STrond Myklebust struct compound_hdr hdr; 6939683b57b4STrond Myklebust int status; 6940683b57b4STrond Myklebust 6941bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69429b7b9fccSAndy Adamson if (status) 69439b7b9fccSAndy Adamson goto out; 6944bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 69459b7b9fccSAndy Adamson if (status) 6946683b57b4STrond Myklebust goto out; 6947bf269551SChuck Lever status = decode_putfh(xdr); 6948bf269551SChuck Lever if (status) 6949683b57b4STrond Myklebust goto out; 6950b03d735bSChuck Lever if (res->migration) { 6951b03d735bSChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6952b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6953b03d735bSChuck Lever &res->fs_locations->fattr, 6954b03d735bSChuck Lever NULL, res->fs_locations, 6955b03d735bSChuck Lever NULL, res->fs_locations->server); 6956b03d735bSChuck Lever if (status) 6957b03d735bSChuck Lever goto out; 6958b03d735bSChuck Lever if (res->renew) 6959b03d735bSChuck Lever status = decode_renew(xdr); 6960b03d735bSChuck Lever } else { 6961bf269551SChuck Lever status = decode_lookup(xdr); 6962bf269551SChuck Lever if (status) 6963683b57b4STrond Myklebust goto out; 6964bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6965b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6966b03d735bSChuck Lever &res->fs_locations->fattr, 69678b7e3f49STrond Myklebust NULL, res->fs_locations, 6968aa9c2669SDavid Quigley NULL, res->fs_locations->server); 6969b03d735bSChuck Lever } 6970683b57b4STrond Myklebust out: 6971683b57b4STrond Myklebust return status; 6972683b57b4STrond Myklebust } 6973683b57b4STrond Myklebust 69745a5ea0d4SBryan Schumaker /* 69755a5ea0d4SBryan Schumaker * Decode SECINFO response 69765a5ea0d4SBryan Schumaker */ 69775a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 69785a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 69795a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 69805a5ea0d4SBryan Schumaker { 69815a5ea0d4SBryan Schumaker struct compound_hdr hdr; 69825a5ea0d4SBryan Schumaker int status; 69835a5ea0d4SBryan Schumaker 69845a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69855a5ea0d4SBryan Schumaker if (status) 69865a5ea0d4SBryan Schumaker goto out; 69875a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69885a5ea0d4SBryan Schumaker if (status) 69895a5ea0d4SBryan Schumaker goto out; 69905a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 69915a5ea0d4SBryan Schumaker if (status) 69925a5ea0d4SBryan Schumaker goto out; 69935a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 69945a5ea0d4SBryan Schumaker out: 69955a5ea0d4SBryan Schumaker return status; 69965a5ea0d4SBryan Schumaker } 69975a5ea0d4SBryan Schumaker 699844c99933SChuck Lever /* 699944c99933SChuck Lever * Decode FSID_PRESENT response 700044c99933SChuck Lever */ 700144c99933SChuck Lever static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp, 700244c99933SChuck Lever struct xdr_stream *xdr, 700344c99933SChuck Lever struct nfs4_fsid_present_res *res) 700444c99933SChuck Lever { 700544c99933SChuck Lever struct compound_hdr hdr; 700644c99933SChuck Lever int status; 700744c99933SChuck Lever 700844c99933SChuck Lever status = decode_compound_hdr(xdr, &hdr); 700944c99933SChuck Lever if (status) 701044c99933SChuck Lever goto out; 701144c99933SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 701244c99933SChuck Lever if (status) 701344c99933SChuck Lever goto out; 701444c99933SChuck Lever status = decode_putfh(xdr); 701544c99933SChuck Lever if (status) 701644c99933SChuck Lever goto out; 701744c99933SChuck Lever status = decode_getfh(xdr, res->fh); 701844c99933SChuck Lever if (status) 701944c99933SChuck Lever goto out; 702044c99933SChuck Lever if (res->renew) 702144c99933SChuck Lever status = decode_renew(xdr); 702244c99933SChuck Lever out: 702344c99933SChuck Lever return status; 702444c99933SChuck Lever } 702544c99933SChuck Lever 702699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 702799fe60d0SBenny Halevy /* 70287c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 70297c44f1aeSWeston Andros Adamson */ 70307c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 70317c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 70327c44f1aeSWeston Andros Adamson void *res) 70337c44f1aeSWeston Andros Adamson { 70347c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 70357c44f1aeSWeston Andros Adamson int status; 70367c44f1aeSWeston Andros Adamson 70377c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 70387c44f1aeSWeston Andros Adamson if (!status) 70397c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 70407c44f1aeSWeston Andros Adamson return status; 70417c44f1aeSWeston Andros Adamson } 70427c44f1aeSWeston Andros Adamson 70437c44f1aeSWeston Andros Adamson /* 70448b173218SRicardo Labiaga * Decode EXCHANGE_ID response 704599fe60d0SBenny Halevy */ 7046bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 7047bf269551SChuck Lever struct xdr_stream *xdr, 704899fe60d0SBenny Halevy void *res) 704999fe60d0SBenny Halevy { 705099fe60d0SBenny Halevy struct compound_hdr hdr; 705199fe60d0SBenny Halevy int status; 705299fe60d0SBenny Halevy 7053bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 705499fe60d0SBenny Halevy if (!status) 7055bf269551SChuck Lever status = decode_exchange_id(xdr, res); 705699fe60d0SBenny Halevy return status; 705799fe60d0SBenny Halevy } 70582050f0ccSAndy Adamson 70592050f0ccSAndy Adamson /* 70608b173218SRicardo Labiaga * Decode CREATE_SESSION response 7061fc931582SAndy Adamson */ 7062bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 7063bf269551SChuck Lever struct xdr_stream *xdr, 7064fc931582SAndy Adamson struct nfs41_create_session_res *res) 7065fc931582SAndy Adamson { 7066fc931582SAndy Adamson struct compound_hdr hdr; 7067fc931582SAndy Adamson int status; 7068fc931582SAndy Adamson 7069bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7070fc931582SAndy Adamson if (!status) 7071bf269551SChuck Lever status = decode_create_session(xdr, res); 7072fc931582SAndy Adamson return status; 7073fc931582SAndy Adamson } 7074fc931582SAndy Adamson 7075fc931582SAndy Adamson /* 70768b173218SRicardo Labiaga * Decode DESTROY_SESSION response 70770f3e66c6SAndy Adamson */ 7078bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 7079bf269551SChuck Lever struct xdr_stream *xdr, 7080bf269551SChuck Lever void *res) 70810f3e66c6SAndy Adamson { 70820f3e66c6SAndy Adamson struct compound_hdr hdr; 70830f3e66c6SAndy Adamson int status; 70840f3e66c6SAndy Adamson 7085bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70860f3e66c6SAndy Adamson if (!status) 7087bf269551SChuck Lever status = decode_destroy_session(xdr, res); 70880f3e66c6SAndy Adamson return status; 70890f3e66c6SAndy Adamson } 70900f3e66c6SAndy Adamson 70910f3e66c6SAndy Adamson /* 709266245539STrond Myklebust * Decode DESTROY_CLIENTID response 709366245539STrond Myklebust */ 709466245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 709566245539STrond Myklebust struct xdr_stream *xdr, 709666245539STrond Myklebust void *res) 709766245539STrond Myklebust { 709866245539STrond Myklebust struct compound_hdr hdr; 709966245539STrond Myklebust int status; 710066245539STrond Myklebust 710166245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 710266245539STrond Myklebust if (!status) 710366245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 710466245539STrond Myklebust return status; 710566245539STrond Myklebust } 710666245539STrond Myklebust 710766245539STrond Myklebust /* 71088b173218SRicardo Labiaga * Decode SEQUENCE response 7109fc01cea9SAndy Adamson */ 7110bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 7111bf269551SChuck Lever struct xdr_stream *xdr, 7112fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 7113fc01cea9SAndy Adamson { 7114fc01cea9SAndy Adamson struct compound_hdr hdr; 7115fc01cea9SAndy Adamson int status; 7116fc01cea9SAndy Adamson 7117bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7118fc01cea9SAndy Adamson if (!status) 7119bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 7120fc01cea9SAndy Adamson return status; 7121fc01cea9SAndy Adamson } 7122fc01cea9SAndy Adamson 7123fc01cea9SAndy Adamson /* 71248b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 71252050f0ccSAndy Adamson */ 7126bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 7127bf269551SChuck Lever struct xdr_stream *xdr, 71282050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 71292050f0ccSAndy Adamson { 71302050f0ccSAndy Adamson struct compound_hdr hdr; 71312050f0ccSAndy Adamson int status; 71322050f0ccSAndy Adamson 7133bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 71342050f0ccSAndy Adamson if (!status) 7135bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 71362050f0ccSAndy Adamson if (!status) 7137bf269551SChuck Lever status = decode_putrootfh(xdr); 71382050f0ccSAndy Adamson if (!status) 7139bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 71402050f0ccSAndy Adamson return status; 71412050f0ccSAndy Adamson } 714218019753SRicardo Labiaga 714318019753SRicardo Labiaga /* 714418019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 714518019753SRicardo Labiaga */ 7146bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 7147bf269551SChuck Lever struct xdr_stream *xdr, 714818019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 714918019753SRicardo Labiaga { 715018019753SRicardo Labiaga struct compound_hdr hdr; 715118019753SRicardo Labiaga int status; 715218019753SRicardo Labiaga 7153bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 715418019753SRicardo Labiaga if (!status) 7155bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 715618019753SRicardo Labiaga if (!status) 71578ee2b78aSHimangi Saraogi status = decode_reclaim_complete(xdr, NULL); 715818019753SRicardo Labiaga return status; 715918019753SRicardo Labiaga } 7160b1f69b75SAndy Adamson 7161b1f69b75SAndy Adamson /* 7162b1f69b75SAndy Adamson * Decode GETDEVINFO response 7163b1f69b75SAndy Adamson */ 7164bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 7165bf269551SChuck Lever struct xdr_stream *xdr, 7166b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 7167b1f69b75SAndy Adamson { 7168b1f69b75SAndy Adamson struct compound_hdr hdr; 7169b1f69b75SAndy Adamson int status; 7170b1f69b75SAndy Adamson 7171bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7172b1f69b75SAndy Adamson if (status != 0) 7173b1f69b75SAndy Adamson goto out; 7174bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7175b1f69b75SAndy Adamson if (status != 0) 7176b1f69b75SAndy Adamson goto out; 71774e590803STrond Myklebust status = decode_getdeviceinfo(xdr, res); 7178b1f69b75SAndy Adamson out: 7179b1f69b75SAndy Adamson return status; 7180b1f69b75SAndy Adamson } 7181b1f69b75SAndy Adamson 7182b1f69b75SAndy Adamson /* 7183b1f69b75SAndy Adamson * Decode LAYOUTGET response 7184b1f69b75SAndy Adamson */ 7185bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 7186bf269551SChuck Lever struct xdr_stream *xdr, 7187b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 7188b1f69b75SAndy Adamson { 7189b1f69b75SAndy Adamson struct compound_hdr hdr; 7190b1f69b75SAndy Adamson int status; 7191b1f69b75SAndy Adamson 7192bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7193b1f69b75SAndy Adamson if (status) 7194b1f69b75SAndy Adamson goto out; 7195bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7196b1f69b75SAndy Adamson if (status) 7197b1f69b75SAndy Adamson goto out; 7198bf269551SChuck Lever status = decode_putfh(xdr); 7199b1f69b75SAndy Adamson if (status) 7200b1f69b75SAndy Adamson goto out; 7201bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 7202b1f69b75SAndy Adamson out: 7203b1f69b75SAndy Adamson return status; 7204b1f69b75SAndy Adamson } 7205863a3c6cSAndy Adamson 7206863a3c6cSAndy Adamson /* 7207cbe82603SBenny Halevy * Decode LAYOUTRETURN response 7208cbe82603SBenny Halevy */ 7209cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 7210cbe82603SBenny Halevy struct xdr_stream *xdr, 7211cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 7212cbe82603SBenny Halevy { 7213cbe82603SBenny Halevy struct compound_hdr hdr; 7214cbe82603SBenny Halevy int status; 7215cbe82603SBenny Halevy 7216cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 7217cbe82603SBenny Halevy if (status) 7218cbe82603SBenny Halevy goto out; 7219cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 7220cbe82603SBenny Halevy if (status) 7221cbe82603SBenny Halevy goto out; 7222cbe82603SBenny Halevy status = decode_putfh(xdr); 7223cbe82603SBenny Halevy if (status) 7224cbe82603SBenny Halevy goto out; 7225cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 7226cbe82603SBenny Halevy out: 7227cbe82603SBenny Halevy return status; 7228cbe82603SBenny Halevy } 7229cbe82603SBenny Halevy 7230cbe82603SBenny Halevy /* 7231863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 7232863a3c6cSAndy Adamson */ 7233863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 7234863a3c6cSAndy Adamson struct xdr_stream *xdr, 7235863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 7236863a3c6cSAndy Adamson { 7237863a3c6cSAndy Adamson struct compound_hdr hdr; 7238863a3c6cSAndy Adamson int status; 7239863a3c6cSAndy Adamson 7240863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 7241863a3c6cSAndy Adamson if (status) 7242863a3c6cSAndy Adamson goto out; 7243863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 7244863a3c6cSAndy Adamson if (status) 7245863a3c6cSAndy Adamson goto out; 7246863a3c6cSAndy Adamson status = decode_putfh(xdr); 7247863a3c6cSAndy Adamson if (status) 7248863a3c6cSAndy Adamson goto out; 7249863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 7250863a3c6cSAndy Adamson if (status) 7251863a3c6cSAndy Adamson goto out; 72526926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 7253863a3c6cSAndy Adamson out: 7254863a3c6cSAndy Adamson return status; 7255863a3c6cSAndy Adamson } 7256fca78d6dSBryan Schumaker 7257fca78d6dSBryan Schumaker /* 7258fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7259fca78d6dSBryan Schumaker */ 7260fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7261fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7262fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 7263fca78d6dSBryan Schumaker { 7264fca78d6dSBryan Schumaker struct compound_hdr hdr; 7265fca78d6dSBryan Schumaker int status; 7266fca78d6dSBryan Schumaker 7267fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7268fca78d6dSBryan Schumaker if (status) 7269fca78d6dSBryan Schumaker goto out; 7270fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7271fca78d6dSBryan Schumaker if (status) 7272fca78d6dSBryan Schumaker goto out; 7273fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7274fca78d6dSBryan Schumaker if (status) 7275fca78d6dSBryan Schumaker goto out; 727631e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7277fca78d6dSBryan Schumaker out: 7278fca78d6dSBryan Schumaker return status; 7279fca78d6dSBryan Schumaker } 72807d974794SBryan Schumaker 72817d974794SBryan Schumaker /* 72827d974794SBryan Schumaker * Decode TEST_STATEID response 72837d974794SBryan Schumaker */ 72847d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 72857d974794SBryan Schumaker struct xdr_stream *xdr, 72867d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 72877d974794SBryan Schumaker { 72887d974794SBryan Schumaker struct compound_hdr hdr; 72897d974794SBryan Schumaker int status; 72907d974794SBryan Schumaker 72917d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 72927d974794SBryan Schumaker if (status) 72937d974794SBryan Schumaker goto out; 72947d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 72957d974794SBryan Schumaker if (status) 72967d974794SBryan Schumaker goto out; 72977d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 72987d974794SBryan Schumaker out: 72997d974794SBryan Schumaker return status; 73007d974794SBryan Schumaker } 73019aeda35fSBryan Schumaker 73029aeda35fSBryan Schumaker /* 73039aeda35fSBryan Schumaker * Decode FREE_STATEID response 73049aeda35fSBryan Schumaker */ 73059aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 73069aeda35fSBryan Schumaker struct xdr_stream *xdr, 73079aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 73089aeda35fSBryan Schumaker { 73099aeda35fSBryan Schumaker struct compound_hdr hdr; 73109aeda35fSBryan Schumaker int status; 73119aeda35fSBryan Schumaker 73129aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 73139aeda35fSBryan Schumaker if (status) 73149aeda35fSBryan Schumaker goto out; 73159aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 73169aeda35fSBryan Schumaker if (status) 73179aeda35fSBryan Schumaker goto out; 73189aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 73199aeda35fSBryan Schumaker out: 73209aeda35fSBryan Schumaker return status; 73219aeda35fSBryan Schumaker } 732299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 732399fe60d0SBenny Halevy 7324573c4e1eSChuck Lever /** 7325573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7326573c4e1eSChuck Lever * the local page cache. 7327573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7328573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7329573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7330573c4e1eSChuck Lever * 7331573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7332573c4e1eSChuck Lever * returned. 7333573c4e1eSChuck Lever * 7334573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7335573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7336573c4e1eSChuck Lever * on a directory already in our cache. 7337573c4e1eSChuck Lever */ 7338573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7339573c4e1eSChuck Lever int plus) 73401da177e4SLinus Torvalds { 7341256e48bbSTrond Myklebust unsigned int savep; 7342dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 73431da177e4SLinus Torvalds uint32_t len; 7344babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7345babddc72SBryan Schumaker if (unlikely(!p)) 7346babddc72SBryan Schumaker goto out_overflow; 7347c08e76d0SChuck Lever if (*p == xdr_zero) { 7348babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7349babddc72SBryan Schumaker if (unlikely(!p)) 7350babddc72SBryan Schumaker goto out_overflow; 7351c08e76d0SChuck Lever if (*p == xdr_zero) 7352573c4e1eSChuck Lever return -EAGAIN; 73531da177e4SLinus Torvalds entry->eof = 1; 7354573c4e1eSChuck Lever return -EBADCOOKIE; 73551da177e4SLinus Torvalds } 73561da177e4SLinus Torvalds 7357babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7358babddc72SBryan Schumaker if (unlikely(!p)) 7359babddc72SBryan Schumaker goto out_overflow; 73601da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 73611da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7362c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7363babddc72SBryan Schumaker 73649af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7365babddc72SBryan Schumaker if (unlikely(!p)) 7366babddc72SBryan Schumaker goto out_overflow; 73671da177e4SLinus Torvalds entry->name = (const char *) p; 73681da177e4SLinus Torvalds 73691da177e4SLinus Torvalds /* 73701da177e4SLinus Torvalds * In case the server doesn't return an inode number, 73711da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 73721da177e4SLinus Torvalds * since glibc seems to choke on it...) 73731da177e4SLinus Torvalds */ 73741da177e4SLinus Torvalds entry->ino = 1; 73754f082222STrond Myklebust entry->fattr->valid = 0; 73761da177e4SLinus Torvalds 73779af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7378babddc72SBryan Schumaker goto out_overflow; 73799af8c222STrond Myklebust 7380256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7381babddc72SBryan Schumaker goto out_overflow; 73829af8c222STrond Myklebust 7383573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 7384aa9c2669SDavid Quigley NULL, entry->label, entry->server) < 0) 7385babddc72SBryan Schumaker goto out_overflow; 738628331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 738728331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 738828331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 738982f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 73909af8c222STrond Myklebust 73910b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 73920b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 73930b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 73940b26a0bfSTrond Myklebust 7395573c4e1eSChuck Lever return 0; 7396babddc72SBryan Schumaker 7397babddc72SBryan Schumaker out_overflow: 7398babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7399573c4e1eSChuck Lever return -EAGAIN; 74001da177e4SLinus Torvalds } 74011da177e4SLinus Torvalds 74021da177e4SLinus Torvalds /* 74031da177e4SLinus Torvalds * We need to translate between nfs status return values and 74041da177e4SLinus Torvalds * the local errno values which may not be the same. 74051da177e4SLinus Torvalds */ 74061da177e4SLinus Torvalds static struct { 74071da177e4SLinus Torvalds int stat; 74081da177e4SLinus Torvalds int errno; 74091da177e4SLinus Torvalds } nfs_errtbl[] = { 74101da177e4SLinus Torvalds { NFS4_OK, 0 }, 7411856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7412856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7413856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7414856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7415856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7416856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7417856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7418856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7419856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7420856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7421856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7422856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7423856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7424856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7425856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7426856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7427856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7428856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7429856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7430856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7431856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7432856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7433fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7434856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7435856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7436856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7437856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7438856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7439856dff3dSBenny Halevy { -1, -EIO } 74401da177e4SLinus Torvalds }; 74411da177e4SLinus Torvalds 74421da177e4SLinus Torvalds /* 74431da177e4SLinus Torvalds * Convert an NFS error code to a local one. 74441da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 74451da177e4SLinus Torvalds */ 74461da177e4SLinus Torvalds static int 74470a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 74481da177e4SLinus Torvalds { 74491da177e4SLinus Torvalds int i; 74501da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 74511da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 74521da177e4SLinus Torvalds return nfs_errtbl[i].errno; 74531da177e4SLinus Torvalds } 74541da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 74551da177e4SLinus Torvalds /* The server is looney tunes. */ 7456fdcb4577STrond Myklebust return -EREMOTEIO; 74571da177e4SLinus Torvalds } 74581da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 74591da177e4SLinus Torvalds * handle it. 74601da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 74611da177e4SLinus Torvalds * not conflict with native Linux error codes. 74621da177e4SLinus Torvalds */ 7463856dff3dSBenny Halevy return -stat; 74641da177e4SLinus Torvalds } 74651da177e4SLinus Torvalds 74661c6dcbe5SAnna Schumaker #ifdef CONFIG_NFS_V4_2 74671c6dcbe5SAnna Schumaker #include "nfs42xdr.c" 74681c6dcbe5SAnna Schumaker #endif /* CONFIG_NFS_V4_2 */ 74691c6dcbe5SAnna Schumaker 74701da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 74711da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 74721da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 74739f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7474bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 74752bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 74762bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7477cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7478cc0175c1SChuck Lever .p_name = #proc, \ 74791da177e4SLinus Torvalds } 74801da177e4SLinus Torvalds 74817c61f0d3SAnna Schumaker #define STUB(proc) \ 74827c61f0d3SAnna Schumaker [NFSPROC4_CLNT_##proc] = { \ 74837c61f0d3SAnna Schumaker .p_name = #proc, \ 74847c61f0d3SAnna Schumaker } 74857c61f0d3SAnna Schumaker 74861da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 74871da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 74881da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 74891da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 74901da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 74911da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 74921da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 74931da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 74941da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 74951da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 74961da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 74971da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 74981da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 74991da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 75001da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 75011da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 75021da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 75031da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 75041da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 75051da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 75061da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 75071da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 75081da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 75091da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 75101da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 75111da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 75121da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 75131da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 75141da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 75151da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 75161da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 75171da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7518029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 751923ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7520683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7521d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 75225a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 752344c99933SChuck Lever PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present), 752499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 752599fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7526fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 75270f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7528fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 75292050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 753018019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7531b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7532b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7533863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7534cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7535fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 75367d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 75379aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 75387c61f0d3SAnna Schumaker STUB(GETDEVICELIST), 7539ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7540ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 754166245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 754299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 75431c6dcbe5SAnna Schumaker #ifdef CONFIG_NFS_V4_2 75441c6dcbe5SAnna Schumaker PROC(SEEK, enc_seek, dec_seek), 7545f4ac1674SAnna Schumaker PROC(ALLOCATE, enc_allocate, dec_allocate), 7546624bd5b7SAnna Schumaker PROC(DEALLOCATE, enc_deallocate, dec_deallocate), 7547be3a5d23STrond Myklebust PROC(LAYOUTSTATS, enc_layoutstats, dec_layoutstats), 754836022770SPeng Tao PROC(CLONE, enc_clone, dec_clone), 75492e72448bSAnna Schumaker PROC(COPY, enc_copy, dec_copy), 75501c6dcbe5SAnna Schumaker #endif /* CONFIG_NFS_V4_2 */ 75511da177e4SLinus Torvalds }; 75521da177e4SLinus Torvalds 7553a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 75541da177e4SLinus Torvalds .number = 4, 7555e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 75561da177e4SLinus Torvalds .procs = nfs4_procedures 75571da177e4SLinus Torvalds }; 75581da177e4SLinus Torvalds 75591da177e4SLinus Torvalds /* 75601da177e4SLinus Torvalds * Local variables: 75611da177e4SLinus Torvalds * c-basic-offset: 8 75621da177e4SLinus Torvalds * End: 75631da177e4SLinus Torvalds */ 7564