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" 57f23f6584SChuck Lever #include "nfs4trace.h" 584882ef72SAlexandros Batsakis #include "internal.h" 5940c64c26SAnna Schumaker #include "nfs4idmap.h" 6076e697baSTrond Myklebust #include "nfs4session.h" 61b1f69b75SAndy Adamson #include "pnfs.h" 62f092075dSChuck Lever #include "netns.h" 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 671da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 681da177e4SLinus Torvalds 6956f487f8SFred Isaman struct compound_hdr; 700a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 7156f487f8SFred Isaman static void encode_layoutget(struct xdr_stream *xdr, 7256f487f8SFred Isaman const struct nfs4_layoutget_args *args, 7356f487f8SFred Isaman struct compound_hdr *hdr); 7456f487f8SFred Isaman static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 7556f487f8SFred Isaman struct nfs4_layoutget_res *res); 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 781da177e4SLinus Torvalds #ifdef DEBUG 791da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 801da177e4SLinus Torvalds #else 811da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 821da177e4SLinus Torvalds #endif 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds /* lock,open owner id: 859f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 861da177e4SLinus Torvalds */ 8795b72eb0STrond Myklebust #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) 88d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 899104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 901da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 911da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 921da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 931da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 949104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 959104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 969104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 979104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 981da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 991da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 1001da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 1011da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 1021da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 1031da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 1041da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 1051da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 106e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 10796928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 10836b3743fSTrond Myklebust #define nfstime4_maxsz (3) 1091da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 1101da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 111bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 112bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 113aa9c2669SDavid Quigley #ifdef CONFIG_NFS_V4_SECURITY_LABEL 114aa9c2669SDavid Quigley /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */ 115aa9c2669SDavid Quigley #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN)) 116aa9c2669SDavid Quigley #else 117aa9c2669SDavid Quigley #define nfs4_label_maxsz 0 118aa9c2669SDavid Quigley #endif 11988034c3dSAndy Adamson /* We support only one layout type per file system */ 12088034c3dSAndy Adamson #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) 12196928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 12296928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 12336b3743fSTrond Myklebust 3*nfstime4_maxsz + \ 12436b3743fSTrond Myklebust nfs4_owner_maxsz + \ 125aa9c2669SDavid Quigley nfs4_group_maxsz + nfs4_label_maxsz + \ 126aa9c2669SDavid Quigley decode_mdsthreshold_maxsz)) 12796928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 12896928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 12996928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1309104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1319104a55dSTrond Myklebust 1 + 2 + 1 + \ 1329104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1339104a55dSTrond Myklebust nfs4_group_maxsz + \ 134aa9c2669SDavid Quigley nfs4_label_maxsz + \ 13536b3743fSTrond Myklebust 1 + nfstime4_maxsz + \ 13636b3743fSTrond Myklebust 1 + nfstime4_maxsz) 1371da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1381da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 13956ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 14056ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1412f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 142dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 143dae100c2SFred Isaman * layout types will be returned. 144dae100c2SFred Isaman */ 145dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 146dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1471da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1481da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1491da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1501da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 151cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 152b8fb2f59SJeff Layton /* client name */ \ 153b8fb2f59SJeff Layton 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 154cc38bac3SChuck Lever 1 /* sc_prog */ + \ 1556dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1566dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 157cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1581da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1591da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1606dd3436bSChuck Lever 2 /* clientid */ + \ 1616dd3436bSChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 1626dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1636dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN)) 1641da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1651da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1661da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1671da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1681da177e4SLinus Torvalds (op_decode_hdr_maxsz) 169e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 170e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1715b5faaf6SJeff Layton #define encode_lookupp_maxsz (op_encode_hdr_maxsz) 1725b5faaf6SJeff Layton #define decode_lookupp_maxsz (op_decode_hdr_maxsz) 1732cebf828STrond Myklebust #define encode_share_access_maxsz \ 1742cebf828STrond Myklebust (2) 1754882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1762cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1772cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1782cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1792cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1802cebf828STrond Myklebust open_owner_id_maxsz + \ 1812cebf828STrond Myklebust encode_opentype_maxsz + \ 1822cebf828STrond Myklebust encode_claim_null_maxsz) 1835a1f6d9eSTrond Myklebust #define decode_space_limit_maxsz (3) 1842cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1859104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1865a1f6d9eSTrond Myklebust decode_space_limit_maxsz + \ 1872cebf828STrond Myklebust decode_ace_maxsz) 1882cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1892cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1909104a55dSTrond Myklebust decode_stateid_maxsz + \ 1912cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1922cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1932cebf828STrond Myklebust decode_delegation_maxsz) 1949104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1959104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1969104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1979104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1989104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1999104a55dSTrond Myklebust decode_stateid_maxsz) 2009104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 2019104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 2029104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 2039104a55dSTrond Myklebust encode_share_access_maxsz) 2049104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 2059104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 2069104a55dSTrond Myklebust decode_stateid_maxsz) 2079104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 2089104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 2099104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 2109104a55dSTrond Myklebust decode_stateid_maxsz) 2119104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 2129104a55dSTrond Myklebust encode_stateid_maxsz + \ 2139104a55dSTrond Myklebust encode_attrs_maxsz) 2149104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 2159104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 2169104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 2179104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2189104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 2199104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 220aa9c2669SDavid Quigley 2 + encode_verifier_maxsz + 5 + \ 221aa9c2669SDavid Quigley nfs4_label_maxsz) 2229104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 223a7697f6fSChuck Lever decode_verifier_maxsz) 2249104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 2259104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 2269104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2279104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2289104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2299104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2309104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2319104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2329104a55dSTrond Myklebust decode_verifier_maxsz) 2331da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2341da177e4SLinus Torvalds nfs4_name_maxsz) 2356ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2366ce18391SBenny Halevy decode_change_info_maxsz) 2371da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2381da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2396ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2406ce18391SBenny Halevy decode_change_info_maxsz + \ 2416ce18391SBenny Halevy decode_change_info_maxsz) 2421da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2431da177e4SLinus Torvalds nfs4_name_maxsz) 2446ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 245daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2469104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2479104a55dSTrond Myklebust 7 + \ 248daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 249daccbdedSTrond Myklebust encode_lockowner_maxsz) 2509104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2519104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2529104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2539104a55dSTrond Myklebust decode_lock_denied_maxsz) 254daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 255daccbdedSTrond Myklebust encode_lockowner_maxsz) 2569104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2579104a55dSTrond Myklebust decode_lock_denied_maxsz) 2589104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2599104a55dSTrond Myklebust encode_stateid_maxsz + \ 2609104a55dSTrond Myklebust 4) 2619104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2629104a55dSTrond Myklebust decode_stateid_maxsz) 263d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 264d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 265d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 266d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 267d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2689104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2699104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2701da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2711da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 27294a6d753SChuck Lever 1 + \ 27396928206SJ. Bruce Fields nfs4_fattr_maxsz) 2741da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2751da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2769104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2779104a55dSTrond Myklebust encode_attrs_maxsz) 2782cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2792cebf828STrond Myklebust decode_change_info_maxsz + \ 2802cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2819104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2829104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2831da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2841da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2859104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2869104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2879104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2889104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2899104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2909104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 291e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 292e6889620STrond Myklebust (encode_getattr_maxsz) 293e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 294e6889620STrond Myklebust (0) 2955a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2961650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2979b7b9fccSAndy Adamson 2989b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 299fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 300d751f748SJim Rees #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ 301d751f748SJim Rees sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) 302fc931582SAndy Adamson 30399fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 30499fe60d0SBenny Halevy encode_verifier_maxsz + \ 30599fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 306b8fb2f59SJeff Layton /* eia_clientowner */ \ 307b8fb2f59SJeff Layton 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 30899fe60d0SBenny Halevy 1 /* flags */ + \ 30999fe60d0SBenny Halevy 1 /* spa_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 + \ 313db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 314db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 315db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 316db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 317d751f748SJim Rees XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 318db8ac8baSWeston Andros Adamson 3 /* nii_date */) 31999fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 32099fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 32199fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 32299fe60d0SBenny Halevy 1 /* eir_flags */ + \ 32399fe60d0SBenny Halevy 1 /* spr_how */ + \ 3242031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 3252031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 3262031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 32799fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 32899fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 32999fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 33099fe60d0SBenny Halevy /* eir_server_scope<> */ \ 33199fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 33299fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 3337d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3347d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3357d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3367d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3377d2ed9acSWeston Andros Adamson 3 /* nii_date */) 338fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 339fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 340fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 341fc931582SAndy Adamson 1 /* ca_rdma_ird */) 342fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 343fc931582SAndy Adamson 2 /* csa_clientid */ + \ 344fc931582SAndy Adamson 1 /* csa_sequence */ + \ 345fc931582SAndy Adamson 1 /* csa_flags */ + \ 346fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 347fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 348fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 349fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 350fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 351fc931582SAndy Adamson 1 /* stamp */ + \ 352fc931582SAndy Adamson 1 /* machinename.len */ + \ 353fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 354fc931582SAndy Adamson 1 /* uid */ + \ 355fc931582SAndy Adamson 1 /* gid */ + \ 356fc931582SAndy Adamson 1 /* gids.len (0) */) 357fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 358fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 359fc931582SAndy Adamson 1 /* csr_sequence */ + \ 360fc931582SAndy Adamson 1 /* csr_flags */ + \ 361fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 362fc931582SAndy Adamson decode_channel_attrs_maxsz) 3637c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3647c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3657c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3667c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3677c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3687c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3697c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3707c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3717c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3727c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3730f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3740f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 37566245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 37666245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 377fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 378fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 379fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 380fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 38118019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 38218019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 38384c9dee3SChristoph Hellwig #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \ 38484c9dee3SChristoph Hellwig XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \ 38584c9dee3SChristoph Hellwig 1 /* layout type */ + \ 38684c9dee3SChristoph Hellwig 1 /* maxcount */ + \ 38784c9dee3SChristoph Hellwig 1 /* bitmap size */ + \ 38884c9dee3SChristoph Hellwig 1 /* notification bitmap length */ + \ 38984c9dee3SChristoph Hellwig 1 /* notification bitmap, word 0 */) 390b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 391b1f69b75SAndy Adamson 1 /* layout type */ + \ 392b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 393b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 394b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 39584c9dee3SChristoph Hellwig 1 /* notification bitmap, word 0 */) 396b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 397b1f69b75SAndy Adamson encode_stateid_maxsz) 398b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 399b1f69b75SAndy Adamson decode_stateid_maxsz + \ 400b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 401863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 402863a3c6cSAndy Adamson 2 /* offset */ + \ 403863a3c6cSAndy Adamson 2 /* length */ + \ 404863a3c6cSAndy Adamson 1 /* reclaim */ + \ 405863a3c6cSAndy Adamson encode_stateid_maxsz + \ 406863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 407863a3c6cSAndy Adamson 2 /* last byte written */ + \ 408863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 409863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 4105f919c9fSChristoph Hellwig 1 /* layoutupdate4 opaqueue len */) 4115f919c9fSChristoph Hellwig /* the actual content of layoutupdate4 should 4125f919c9fSChristoph Hellwig be allocated by drivers and spliced in 4135f919c9fSChristoph Hellwig using xdr_write_pages */ 414863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 415cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 416cbe82603SBenny Halevy encode_stateid_maxsz + \ 4176669cb8bSTrond Myklebust 1 + \ 4186669cb8bSTrond Myklebust XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) 419cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 420cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 421fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 422fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 4237d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 4247d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4257d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 4269aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 4279aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4289f79fb48SAndy Adamson #define decode_free_stateid_maxsz (op_decode_hdr_maxsz) 4299b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 4309b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 4319b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 432cf805165STrond Myklebust #define encode_layoutreturn_maxsz 0 433cf805165STrond Myklebust #define decode_layoutreturn_maxsz 0 43456f487f8SFred Isaman #define encode_layoutget_maxsz 0 43556f487f8SFred Isaman #define decode_layoutget_maxsz 0 4369b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4379b7b9fccSAndy Adamson 4381da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4391da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4401da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4419b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4421da177e4SLinus Torvalds encode_putfh_maxsz + \ 4439104a55dSTrond Myklebust encode_read_maxsz) 4441da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4459b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4461da177e4SLinus Torvalds decode_putfh_maxsz + \ 4479104a55dSTrond Myklebust decode_read_maxsz) 4481da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4499b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4501da177e4SLinus Torvalds encode_putfh_maxsz + \ 4519104a55dSTrond Myklebust encode_readlink_maxsz) 4521da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4541da177e4SLinus Torvalds decode_putfh_maxsz + \ 4559104a55dSTrond Myklebust decode_readlink_maxsz) 4561da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4581da177e4SLinus Torvalds encode_putfh_maxsz + \ 4599104a55dSTrond Myklebust encode_readdir_maxsz) 4601da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4621da177e4SLinus Torvalds decode_putfh_maxsz + \ 4639104a55dSTrond Myklebust decode_readdir_maxsz) 4641da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4661da177e4SLinus Torvalds encode_putfh_maxsz + \ 4679104a55dSTrond Myklebust encode_write_maxsz + \ 4684f9838c7STrond Myklebust encode_getattr_maxsz) 4691da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4709b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4711da177e4SLinus Torvalds decode_putfh_maxsz + \ 4729104a55dSTrond Myklebust decode_write_maxsz + \ 4734f9838c7STrond Myklebust decode_getattr_maxsz) 4741da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4759b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4761da177e4SLinus Torvalds encode_putfh_maxsz + \ 4778582715eSTrond Myklebust encode_commit_maxsz) 4781da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4799b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4801da177e4SLinus Torvalds decode_putfh_maxsz + \ 4818582715eSTrond Myklebust decode_commit_maxsz) 4821da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4839b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4841da177e4SLinus Torvalds encode_putfh_maxsz + \ 4852cebf828STrond Myklebust encode_open_maxsz + \ 4866168f62cSWeston Andros Adamson encode_access_maxsz + \ 4872cebf828STrond Myklebust encode_getfh_maxsz + \ 48856f487f8SFred Isaman encode_getattr_maxsz + \ 48956f487f8SFred Isaman encode_layoutget_maxsz) 4901da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4921da177e4SLinus Torvalds decode_putfh_maxsz + \ 4932cebf828STrond Myklebust decode_open_maxsz + \ 4946168f62cSWeston Andros Adamson decode_access_maxsz + \ 4952cebf828STrond Myklebust decode_getfh_maxsz + \ 49656f487f8SFred Isaman decode_getattr_maxsz + \ 49756f487f8SFred Isaman decode_layoutget_maxsz) 4981da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4991da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5001da177e4SLinus Torvalds encode_putfh_maxsz + \ 5019104a55dSTrond Myklebust encode_open_confirm_maxsz) 5029104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 5039104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 5041da177e4SLinus Torvalds decode_putfh_maxsz + \ 5059104a55dSTrond Myklebust decode_open_confirm_maxsz) 5061da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 5079b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5081da177e4SLinus Torvalds encode_putfh_maxsz + \ 5092cebf828STrond Myklebust encode_open_maxsz + \ 5106168f62cSWeston Andros Adamson encode_access_maxsz + \ 51156f487f8SFred Isaman encode_getattr_maxsz + \ 51256f487f8SFred Isaman encode_layoutget_maxsz) 5131da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 5149b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5151da177e4SLinus Torvalds decode_putfh_maxsz + \ 5162cebf828STrond Myklebust decode_open_maxsz + \ 5176168f62cSWeston Andros Adamson decode_access_maxsz + \ 51856f487f8SFred Isaman decode_getattr_maxsz + \ 51956f487f8SFred Isaman decode_layoutget_maxsz) 5201da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 5211da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5231da177e4SLinus Torvalds encode_putfh_maxsz + \ 524b6808145STrond Myklebust encode_layoutreturn_maxsz + \ 5253947b74dSTrond Myklebust encode_open_downgrade_maxsz) 5261da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 5271da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5289b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5291da177e4SLinus Torvalds decode_putfh_maxsz + \ 530b6808145STrond Myklebust decode_layoutreturn_maxsz + \ 5313947b74dSTrond Myklebust decode_open_downgrade_maxsz) 5321da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 5339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5341da177e4SLinus Torvalds encode_putfh_maxsz + \ 535cf805165STrond Myklebust encode_layoutreturn_maxsz + \ 5369104a55dSTrond Myklebust encode_close_maxsz + \ 537516a6af6STrond Myklebust encode_getattr_maxsz) 5381da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 5399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5401da177e4SLinus Torvalds decode_putfh_maxsz + \ 541cf805165STrond Myklebust decode_layoutreturn_maxsz + \ 5429104a55dSTrond Myklebust decode_close_maxsz + \ 543516a6af6STrond Myklebust decode_getattr_maxsz) 5441da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5461da177e4SLinus Torvalds encode_putfh_maxsz + \ 5479104a55dSTrond Myklebust encode_setattr_maxsz + \ 5481da177e4SLinus Torvalds encode_getattr_maxsz) 5491da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5511da177e4SLinus Torvalds decode_putfh_maxsz + \ 5529104a55dSTrond Myklebust decode_setattr_maxsz + \ 5539104a55dSTrond Myklebust decode_getattr_maxsz) 5541da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5561da177e4SLinus Torvalds encode_putfh_maxsz + \ 5571da177e4SLinus Torvalds encode_fsinfo_maxsz) 5581da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5599b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5601da177e4SLinus Torvalds decode_putfh_maxsz + \ 5611da177e4SLinus Torvalds decode_fsinfo_maxsz) 5621da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5631da177e4SLinus Torvalds encode_renew_maxsz) 5641da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5651da177e4SLinus Torvalds decode_renew_maxsz) 5661da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5671da177e4SLinus Torvalds encode_setclientid_maxsz) 5681da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5691da177e4SLinus Torvalds decode_setclientid_maxsz) 5701da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5711da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 57283ca7f5aSChuck Lever encode_setclientid_confirm_maxsz) 5731da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5741da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 57583ca7f5aSChuck Lever decode_setclientid_confirm_maxsz) 5761da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5779b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5781da177e4SLinus Torvalds encode_putfh_maxsz + \ 5799104a55dSTrond Myklebust encode_lock_maxsz) 5801da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5819b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5821da177e4SLinus Torvalds decode_putfh_maxsz + \ 5839104a55dSTrond Myklebust decode_lock_maxsz) 5841da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5861da177e4SLinus Torvalds encode_putfh_maxsz + \ 5879104a55dSTrond Myklebust encode_lockt_maxsz) 5889104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5899b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5909104a55dSTrond Myklebust decode_putfh_maxsz + \ 5919104a55dSTrond Myklebust decode_lockt_maxsz) 5921da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5939b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5941da177e4SLinus Torvalds encode_putfh_maxsz + \ 5959104a55dSTrond Myklebust encode_locku_maxsz) 5961da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5981da177e4SLinus Torvalds decode_putfh_maxsz + \ 5999104a55dSTrond Myklebust decode_locku_maxsz) 600d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 601d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 602d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 603d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 604d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 605d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 6061da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 6079b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6081da177e4SLinus Torvalds encode_putfh_maxsz + \ 60976b32999STrond Myklebust encode_access_maxsz + \ 61076b32999STrond Myklebust encode_getattr_maxsz) 6111da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 6129b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6131da177e4SLinus Torvalds decode_putfh_maxsz + \ 61476b32999STrond Myklebust decode_access_maxsz + \ 61576b32999STrond Myklebust decode_getattr_maxsz) 6161da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 6179b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6181da177e4SLinus Torvalds encode_putfh_maxsz + \ 61944c99933SChuck Lever encode_getattr_maxsz + \ 62044c99933SChuck Lever encode_renew_maxsz) 6211da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 6229b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6231da177e4SLinus Torvalds decode_putfh_maxsz + \ 62444c99933SChuck Lever decode_getattr_maxsz + \ 62544c99933SChuck Lever decode_renew_maxsz) 6261da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 6279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6281da177e4SLinus Torvalds encode_putfh_maxsz + \ 6291da177e4SLinus Torvalds encode_lookup_maxsz + \ 6301da177e4SLinus Torvalds encode_getattr_maxsz + \ 6311da177e4SLinus Torvalds encode_getfh_maxsz) 6321da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 6339b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6341da177e4SLinus Torvalds decode_putfh_maxsz + \ 635e6889620STrond Myklebust decode_lookup_maxsz + \ 6361da177e4SLinus Torvalds decode_getattr_maxsz + \ 6371da177e4SLinus Torvalds decode_getfh_maxsz) 6385b5faaf6SJeff Layton #define NFS4_enc_lookupp_sz (compound_encode_hdr_maxsz + \ 6395b5faaf6SJeff Layton encode_sequence_maxsz + \ 6405b5faaf6SJeff Layton encode_putfh_maxsz + \ 6415b5faaf6SJeff Layton encode_lookupp_maxsz + \ 6425b5faaf6SJeff Layton encode_getattr_maxsz + \ 6435b5faaf6SJeff Layton encode_getfh_maxsz) 6445b5faaf6SJeff Layton #define NFS4_dec_lookupp_sz (compound_decode_hdr_maxsz + \ 6455b5faaf6SJeff Layton decode_sequence_maxsz + \ 6465b5faaf6SJeff Layton decode_putfh_maxsz + \ 6475b5faaf6SJeff Layton decode_lookupp_maxsz + \ 6485b5faaf6SJeff Layton decode_getattr_maxsz + \ 6495b5faaf6SJeff Layton decode_getfh_maxsz) 6501da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 6519b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6521da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6531da177e4SLinus Torvalds encode_getattr_maxsz + \ 6541da177e4SLinus Torvalds encode_getfh_maxsz) 6551da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6569b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6571da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6581da177e4SLinus Torvalds decode_getattr_maxsz + \ 6591da177e4SLinus Torvalds decode_getfh_maxsz) 6601da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6619b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6621da177e4SLinus Torvalds encode_putfh_maxsz + \ 663778d2817STrond Myklebust encode_remove_maxsz) 6641da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6659b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6661da177e4SLinus Torvalds decode_putfh_maxsz + \ 667778d2817STrond Myklebust decode_remove_maxsz) 6681da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6701da177e4SLinus Torvalds encode_putfh_maxsz + \ 6711da177e4SLinus Torvalds encode_savefh_maxsz + \ 6721da177e4SLinus Torvalds encode_putfh_maxsz + \ 673778d2817STrond Myklebust encode_rename_maxsz) 6741da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6759b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6761da177e4SLinus Torvalds decode_putfh_maxsz + \ 6771da177e4SLinus Torvalds decode_savefh_maxsz + \ 6781da177e4SLinus Torvalds decode_putfh_maxsz + \ 679778d2817STrond Myklebust decode_rename_maxsz) 6801da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6821da177e4SLinus Torvalds encode_putfh_maxsz + \ 6831da177e4SLinus Torvalds encode_savefh_maxsz + \ 6841da177e4SLinus Torvalds encode_putfh_maxsz + \ 68591ba2eeeSTrond Myklebust encode_link_maxsz + \ 68691ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 687a9f6991bSTrond Myklebust encode_getattr_maxsz) 6881da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6899b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6901da177e4SLinus Torvalds decode_putfh_maxsz + \ 6911da177e4SLinus Torvalds decode_savefh_maxsz + \ 6921da177e4SLinus Torvalds decode_putfh_maxsz + \ 69391ba2eeeSTrond Myklebust decode_link_maxsz + \ 69491ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 69591ba2eeeSTrond Myklebust decode_getattr_maxsz) 6961da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6979b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6981da177e4SLinus Torvalds encode_putfh_maxsz + \ 6991da177e4SLinus Torvalds encode_symlink_maxsz + \ 7001da177e4SLinus Torvalds encode_getattr_maxsz + \ 7011da177e4SLinus Torvalds encode_getfh_maxsz) 7021da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 7039b7b9fccSAndy Adamson decode_sequence_maxsz + \ 7041da177e4SLinus Torvalds decode_putfh_maxsz + \ 7051da177e4SLinus Torvalds decode_symlink_maxsz + \ 7061da177e4SLinus Torvalds decode_getattr_maxsz + \ 7071da177e4SLinus Torvalds decode_getfh_maxsz) 7081da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 7099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7101da177e4SLinus Torvalds encode_putfh_maxsz + \ 7111da177e4SLinus Torvalds encode_create_maxsz + \ 71256ae19f3STrond Myklebust encode_getfh_maxsz + \ 71356ae19f3STrond Myklebust encode_getattr_maxsz) 7141da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 7159b7b9fccSAndy Adamson decode_sequence_maxsz + \ 7161da177e4SLinus Torvalds decode_putfh_maxsz + \ 7171da177e4SLinus Torvalds decode_create_maxsz + \ 71856ae19f3STrond Myklebust decode_getfh_maxsz + \ 71956ae19f3STrond Myklebust decode_getattr_maxsz) 7201da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 7219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7221da177e4SLinus Torvalds encode_putfh_maxsz + \ 7231da177e4SLinus Torvalds encode_getattr_maxsz) 7241da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 7259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 7261da177e4SLinus Torvalds decode_putfh_maxsz + \ 7271da177e4SLinus Torvalds decode_getattr_maxsz) 7281da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 7299b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7301da177e4SLinus Torvalds encode_putfh_maxsz + \ 7319104a55dSTrond Myklebust encode_statfs_maxsz) 7321da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 7339b7b9fccSAndy Adamson decode_sequence_maxsz + \ 7341da177e4SLinus Torvalds decode_putfh_maxsz + \ 7359104a55dSTrond Myklebust decode_statfs_maxsz) 7361da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 7379b7b9fccSAndy Adamson encode_sequence_maxsz + \ 738ab91f264STrond Myklebust encode_putfh_maxsz + \ 7391da177e4SLinus Torvalds encode_getattr_maxsz) 7401da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 7419b7b9fccSAndy Adamson decode_sequence_maxsz + \ 742ab91f264STrond Myklebust decode_putfh_maxsz + \ 7431da177e4SLinus Torvalds decode_getattr_maxsz) 7441da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 7459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7461da177e4SLinus Torvalds encode_putfh_maxsz + \ 747586f1c39STrond Myklebust encode_layoutreturn_maxsz + \ 748fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 749fa178f29STrond Myklebust encode_getattr_maxsz) 7501da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7519b7b9fccSAndy Adamson decode_sequence_maxsz + \ 752d8434d4cSTrond Myklebust decode_putfh_maxsz + \ 753586f1c39STrond Myklebust decode_layoutreturn_maxsz + \ 754fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 755fa178f29STrond Myklebust decode_getattr_maxsz) 756029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 758029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7599104a55dSTrond Myklebust encode_getacl_maxsz) 760029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 762029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7639104a55dSTrond Myklebust decode_getacl_maxsz) 76423ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 76623ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7679104a55dSTrond Myklebust encode_setacl_maxsz) 76823ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 77023ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7719104a55dSTrond Myklebust decode_setacl_maxsz) 772683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 773683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7749b7b9fccSAndy Adamson encode_sequence_maxsz + \ 775683b57b4STrond Myklebust encode_putfh_maxsz + \ 776e6889620STrond Myklebust encode_lookup_maxsz + \ 777b03d735bSChuck Lever encode_fs_locations_maxsz + \ 778b03d735bSChuck Lever encode_renew_maxsz) 779683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 780683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7819b7b9fccSAndy Adamson decode_sequence_maxsz + \ 782683b57b4STrond Myklebust decode_putfh_maxsz + \ 783e6889620STrond Myklebust decode_lookup_maxsz + \ 784b03d735bSChuck Lever decode_fs_locations_maxsz + \ 785b03d735bSChuck Lever decode_renew_maxsz) 7865a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7875a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7885a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7895a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7905a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7915a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7925a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7935a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 79444c99933SChuck Lever #define NFS4_enc_fsid_present_sz \ 79544c99933SChuck Lever (compound_encode_hdr_maxsz + \ 79644c99933SChuck Lever encode_sequence_maxsz + \ 79744c99933SChuck Lever encode_putfh_maxsz + \ 79844c99933SChuck Lever encode_getfh_maxsz + \ 79944c99933SChuck Lever encode_renew_maxsz) 80044c99933SChuck Lever #define NFS4_dec_fsid_present_sz \ 80144c99933SChuck Lever (compound_decode_hdr_maxsz + \ 80244c99933SChuck Lever decode_sequence_maxsz + \ 80344c99933SChuck Lever decode_putfh_maxsz + \ 80444c99933SChuck Lever decode_getfh_maxsz + \ 80544c99933SChuck Lever decode_renew_maxsz) 80699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 8077c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 8087c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 8097c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 8107c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 8117c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 8127c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 81399fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 81499fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 81599fe60d0SBenny Halevy encode_exchange_id_maxsz) 81699fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 81799fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 81899fe60d0SBenny Halevy decode_exchange_id_maxsz) 819fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 820fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 821fc931582SAndy Adamson encode_create_session_maxsz) 822fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 823fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 824fc931582SAndy Adamson decode_create_session_maxsz) 8250f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 8260f3e66c6SAndy Adamson encode_destroy_session_maxsz) 8270f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 8280f3e66c6SAndy Adamson decode_destroy_session_maxsz) 82966245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 83066245539STrond Myklebust encode_destroy_clientid_maxsz) 83166245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 83266245539STrond Myklebust decode_destroy_clientid_maxsz) 833fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 834fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 835fc01cea9SAndy Adamson encode_sequence_maxsz) 836fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 837fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 838fc01cea9SAndy Adamson decode_sequence_maxsz) 8392050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 8402050f0ccSAndy Adamson encode_sequence_maxsz + \ 8412050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 8422050f0ccSAndy Adamson encode_fsinfo_maxsz) 8432050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 8442050f0ccSAndy Adamson decode_sequence_maxsz + \ 8452050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 8462050f0ccSAndy Adamson decode_fsinfo_maxsz) 84718019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 84818019753SRicardo Labiaga encode_sequence_maxsz + \ 84918019753SRicardo Labiaga encode_reclaim_complete_maxsz) 85018019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 85118019753SRicardo Labiaga decode_sequence_maxsz + \ 85218019753SRicardo Labiaga decode_reclaim_complete_maxsz) 853b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 854b1f69b75SAndy Adamson encode_sequence_maxsz +\ 855b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 856b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 857b1f69b75SAndy Adamson decode_sequence_maxsz + \ 858b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 859b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 860b1f69b75SAndy Adamson encode_sequence_maxsz + \ 861b1f69b75SAndy Adamson encode_putfh_maxsz + \ 862b1f69b75SAndy Adamson encode_layoutget_maxsz) 863b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 864b1f69b75SAndy Adamson decode_sequence_maxsz + \ 865b1f69b75SAndy Adamson decode_putfh_maxsz + \ 866b1f69b75SAndy Adamson decode_layoutget_maxsz) 867863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 868863a3c6cSAndy Adamson encode_sequence_maxsz +\ 869863a3c6cSAndy Adamson encode_putfh_maxsz + \ 870863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 871863a3c6cSAndy Adamson encode_getattr_maxsz) 872863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 873863a3c6cSAndy Adamson decode_sequence_maxsz + \ 874863a3c6cSAndy Adamson decode_putfh_maxsz + \ 875863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 876863a3c6cSAndy Adamson decode_getattr_maxsz) 877cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 878cbe82603SBenny Halevy encode_sequence_maxsz + \ 879cbe82603SBenny Halevy encode_putfh_maxsz + \ 880cbe82603SBenny Halevy encode_layoutreturn_maxsz) 881cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 882cbe82603SBenny Halevy decode_sequence_maxsz + \ 883cbe82603SBenny Halevy decode_putfh_maxsz + \ 884cbe82603SBenny Halevy decode_layoutreturn_maxsz) 885fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 886fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 887fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 888fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 889fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 890fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 891fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 892fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8937d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8947d974794SBryan Schumaker encode_sequence_maxsz + \ 8957d974794SBryan Schumaker encode_test_stateid_maxsz) 8967d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8977d974794SBryan Schumaker decode_sequence_maxsz + \ 8987d974794SBryan Schumaker decode_test_stateid_maxsz) 8999aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 9009aeda35fSBryan Schumaker encode_sequence_maxsz + \ 9019aeda35fSBryan Schumaker encode_free_stateid_maxsz) 9029aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 9039aeda35fSBryan Schumaker decode_sequence_maxsz + \ 9049aeda35fSBryan Schumaker decode_free_stateid_maxsz) 9052449ea2eSAlexandros Batsakis 9062449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 9072449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 9082449ea2eSAlexandros Batsakis encode_sequence_maxsz + 9092449ea2eSAlexandros Batsakis encode_putfh_maxsz + 9102449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 9112449ea2eSAlexandros Batsakis XDR_UNIT); 9122449ea2eSAlexandros Batsakis 9132449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 9142449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 9152449ea2eSAlexandros Batsakis decode_sequence_maxsz + 9162449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 9172449ea2eSAlexandros Batsakis XDR_UNIT); 918f1c097beSAndy Adamson 919f1c097beSAndy Adamson const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH + 920f1c097beSAndy Adamson compound_decode_hdr_maxsz + 921f1c097beSAndy Adamson decode_sequence_maxsz) * 922f1c097beSAndy Adamson XDR_UNIT); 923f1c097beSAndy Adamson EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead); 92499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 9251da177e4SLinus Torvalds 926bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 927bca79478STrond Myklebust [NF4BAD] = 0, 928bca79478STrond Myklebust [NF4REG] = S_IFREG, 929bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 930bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 931bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 932bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 933bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 934bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 935bca79478STrond Myklebust [NF4ATTRDIR] = 0, 936bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 9371da177e4SLinus Torvalds }; 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds struct compound_hdr { 9401da177e4SLinus Torvalds int32_t status; 9411da177e4SLinus Torvalds uint32_t nops; 942d017931cSAndy Adamson __be32 * nops_p; 9431da177e4SLinus Torvalds uint32_t taglen; 9441da177e4SLinus Torvalds char * tag; 9450c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 94666cc0429SBenny Halevy u32 minorversion; 9471da177e4SLinus Torvalds }; 9481da177e4SLinus Torvalds 94913c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 95013c65ce9SBenny Halevy { 95113c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 95213c65ce9SBenny Halevy BUG_ON(!p); 95313c65ce9SBenny Halevy return p; 95413c65ce9SBenny Halevy } 9551da177e4SLinus Torvalds 956cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 957cb17e556STrond Myklebust { 958ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0); 959cb17e556STrond Myklebust } 960cb17e556STrond Myklebust 9611da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9621da177e4SLinus Torvalds { 963ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_opaque(xdr, str, len) < 0); 9641da177e4SLinus Torvalds } 9651da177e4SLinus Torvalds 9664ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9674ade9821STrond Myklebust { 968ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_u32(xdr, n) < 0); 9694ade9821STrond Myklebust } 9704ade9821STrond Myklebust 971ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 972ff2eb681STrond Myklebust { 973ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_u64(xdr, n) < 0); 974ff2eb681STrond Myklebust } 975ff2eb681STrond Myklebust 97637c88763STrond Myklebust static ssize_t xdr_encode_bitmap4(struct xdr_stream *xdr, 97737c88763STrond Myklebust const __u32 *bitmap, size_t len) 97837c88763STrond Myklebust { 97937c88763STrond Myklebust ssize_t ret; 98037c88763STrond Myklebust 98137c88763STrond Myklebust /* Trim empty words */ 98237c88763STrond Myklebust while (len > 0 && bitmap[len-1] == 0) 98337c88763STrond Myklebust len--; 98437c88763STrond Myklebust ret = xdr_stream_encode_uint32_array(xdr, bitmap, len); 98537c88763STrond Myklebust if (WARN_ON_ONCE(ret < 0)) 98637c88763STrond Myklebust return ret; 98737c88763STrond Myklebust return len; 98837c88763STrond Myklebust } 98937c88763STrond Myklebust 99037c88763STrond Myklebust static size_t mask_bitmap4(const __u32 *bitmap, const __u32 *mask, 99137c88763STrond Myklebust __u32 *res, size_t len) 99237c88763STrond Myklebust { 99337c88763STrond Myklebust size_t i; 99437c88763STrond Myklebust __u32 tmp; 99537c88763STrond Myklebust 99637c88763STrond Myklebust while (len > 0 && (bitmap[len-1] == 0 || mask[len-1] == 0)) 99737c88763STrond Myklebust len--; 99837c88763STrond Myklebust for (i = len; i-- > 0;) { 99937c88763STrond Myklebust tmp = bitmap[i] & mask[i]; 100037c88763STrond Myklebust res[i] = tmp; 100137c88763STrond Myklebust } 100237c88763STrond Myklebust return len; 100337c88763STrond Myklebust } 100437c88763STrond Myklebust 10054ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 10064ade9821STrond Myklebust const struct nfs_seqid *seqid) 10074ade9821STrond Myklebust { 1008a6796419STrond Myklebust if (seqid != NULL) 10094ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 1010a6796419STrond Myklebust else 1011a6796419STrond Myklebust encode_uint32(xdr, 0); 10124ade9821STrond Myklebust } 10134ade9821STrond Myklebust 10140c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 10150c4e8c18SBenny Halevy struct rpc_rqst *req, 10160c4e8c18SBenny Halevy struct compound_hdr *hdr) 10171da177e4SLinus Torvalds { 10188687b63aSAl Viro __be32 *p; 1019a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 10200c4e8c18SBenny Halevy 10210c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 10220c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 10230c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 10240c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 10251da177e4SLinus Torvalds 10267fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 10276fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 10286fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 1029e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 1030d017931cSAndy Adamson hdr->nops_p = p; 103134558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 1032d017931cSAndy Adamson } 1033d017931cSAndy Adamson 1034ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 1035ab19b481STrond Myklebust uint32_t replen, 1036ab19b481STrond Myklebust struct compound_hdr *hdr) 1037ab19b481STrond Myklebust { 1038ab19b481STrond Myklebust encode_uint32(xdr, op); 1039ab19b481STrond Myklebust hdr->nops++; 1040ab19b481STrond Myklebust hdr->replen += replen; 1041ab19b481STrond Myklebust } 1042ab19b481STrond Myklebust 1043d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 1044d017931cSAndy Adamson { 10457fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 1046d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 10471da177e4SLinus Torvalds } 10481da177e4SLinus Torvalds 1049ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1050ea9d23f5STrond Myklebust { 10512d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 1052ea9d23f5STrond Myklebust } 1053ea9d23f5STrond Myklebust 10541da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 10551da177e4SLinus Torvalds { 1056cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 10571da177e4SLinus Torvalds } 10581da177e4SLinus Torvalds 105936b3743fSTrond Myklebust static __be32 * 106036b3743fSTrond Myklebust xdr_encode_nfstime4(__be32 *p, const struct timespec *t) 106136b3743fSTrond Myklebust { 106236b3743fSTrond Myklebust p = xdr_encode_hyper(p, (__s64)t->tv_sec); 106336b3743fSTrond Myklebust *p++ = cpu_to_be32(t->tv_nsec); 106436b3743fSTrond Myklebust return p; 106536b3743fSTrond Myklebust } 106636b3743fSTrond Myklebust 1067aa9c2669SDavid Quigley static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, 1068aa9c2669SDavid Quigley const struct nfs4_label *label, 106928cf22d0STrond Myklebust const umode_t *umask, 10705334c5bdSKinglong Mee const struct nfs_server *server, 107128cf22d0STrond Myklebust const uint32_t attrmask[]) 10721da177e4SLinus Torvalds { 107395582b00SDeepa Dinamani struct timespec ts; 10741da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 10751da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 10761da177e4SLinus Torvalds int owner_namelen = 0; 10771da177e4SLinus Torvalds int owner_grouplen = 0; 10788687b63aSAl Viro __be32 *p; 1079d7067b2dSTrond Myklebust uint32_t len = 0; 1080d7067b2dSTrond Myklebust uint32_t bmval[3] = { 0 }; 10811da177e4SLinus Torvalds 10821da177e4SLinus Torvalds /* 10831da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 10841da177e4SLinus Torvalds */ 108528cf22d0STrond Myklebust if ((iap->ia_valid & ATTR_SIZE) && (attrmask[0] & FATTR4_WORD0_SIZE)) { 1086d7067b2dSTrond Myklebust bmval[0] |= FATTR4_WORD0_SIZE; 10871da177e4SLinus Torvalds len += 8; 1088d7067b2dSTrond Myklebust } 1089d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MODE) { 109028cf22d0STrond Myklebust if (umask && (attrmask[2] & FATTR4_WORD2_MODE_UMASK)) { 1091dff25ddbSAndreas Gruenbacher bmval[2] |= FATTR4_WORD2_MODE_UMASK; 1092dff25ddbSAndreas Gruenbacher len += 8; 109328cf22d0STrond Myklebust } else if (attrmask[1] & FATTR4_WORD1_MODE) { 1094d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_MODE; 10951da177e4SLinus Torvalds len += 4; 1096d7067b2dSTrond Myklebust } 1097dff25ddbSAndreas Gruenbacher } 109828cf22d0STrond Myklebust if ((iap->ia_valid & ATTR_UID) && (attrmask[1] & FATTR4_WORD1_OWNER)) { 1099e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 11001da177e4SLinus Torvalds if (owner_namelen < 0) { 1101fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1102e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 11031da177e4SLinus Torvalds /* XXX */ 11041da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 11051da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 11061da177e4SLinus Torvalds /* goto out; */ 11071da177e4SLinus Torvalds } 1108d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER; 11091da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 11101da177e4SLinus Torvalds } 111128cf22d0STrond Myklebust if ((iap->ia_valid & ATTR_GID) && 111228cf22d0STrond Myklebust (attrmask[1] & FATTR4_WORD1_OWNER_GROUP)) { 1113e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 11141da177e4SLinus Torvalds if (owner_grouplen < 0) { 1115fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1116e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 11171da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 11181da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 11191da177e4SLinus Torvalds /* goto out; */ 11201da177e4SLinus Torvalds } 1121d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER_GROUP; 11221da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 11231da177e4SLinus Torvalds } 112428cf22d0STrond Myklebust if (attrmask[1] & FATTR4_WORD1_TIME_ACCESS_SET) { 1125d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_ATIME_SET) { 1126d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 112736b3743fSTrond Myklebust len += 4 + (nfstime4_maxsz << 2); 1128d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_ATIME) { 1129d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 11301da177e4SLinus Torvalds len += 4; 1131d7067b2dSTrond Myklebust } 113228cf22d0STrond Myklebust } 113328cf22d0STrond Myklebust if (attrmask[1] & FATTR4_WORD1_TIME_MODIFY_SET) { 1134d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MTIME_SET) { 1135d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 113636b3743fSTrond Myklebust len += 4 + (nfstime4_maxsz << 2); 1137d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_MTIME) { 1138d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 11391da177e4SLinus Torvalds len += 4; 1140d7067b2dSTrond Myklebust } 11415334c5bdSKinglong Mee } 11425334c5bdSKinglong Mee 114328cf22d0STrond Myklebust if (label && (attrmask[2] & FATTR4_WORD2_SECURITY_LABEL)) { 1144b4a2cf76STrond Myklebust len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2); 1145d7067b2dSTrond Myklebust bmval[2] |= FATTR4_WORD2_SECURITY_LABEL; 1146d7067b2dSTrond Myklebust } 1147d7067b2dSTrond Myklebust 114840a3426cSTrond Myklebust xdr_encode_bitmap4(xdr, bmval, ARRAY_SIZE(bmval)); 114940a3426cSTrond Myklebust xdr_stream_encode_opaque_inline(xdr, (void **)&p, len); 11501da177e4SLinus Torvalds 1151d7067b2dSTrond Myklebust if (bmval[0] & FATTR4_WORD0_SIZE) 1152b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 1153d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_MODE) 1154e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1155d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER) 1156811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 1157d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) 1158811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 1159d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) { 11601da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 1161e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 116295582b00SDeepa Dinamani ts = timespec64_to_timespec(iap->ia_atime); 116395582b00SDeepa Dinamani p = xdr_encode_nfstime4(p, &ts); 1164d7067b2dSTrond Myklebust } else 1165e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11661da177e4SLinus Torvalds } 1167d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) { 11681da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 1169e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 117095582b00SDeepa Dinamani ts = timespec64_to_timespec(iap->ia_mtime); 117195582b00SDeepa Dinamani p = xdr_encode_nfstime4(p, &ts); 1172d7067b2dSTrond Myklebust } else 1173e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11741da177e4SLinus Torvalds } 1175d7067b2dSTrond Myklebust if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) { 1176aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->lfs); 1177aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->pi); 1178aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->len); 1179aa9c2669SDavid Quigley p = xdr_encode_opaque_fixed(p, label->label, label->len); 1180aa9c2669SDavid Quigley } 1181dff25ddbSAndreas Gruenbacher if (bmval[2] & FATTR4_WORD2_MODE_UMASK) { 1182dff25ddbSAndreas Gruenbacher *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1183dff25ddbSAndreas Gruenbacher *p++ = cpu_to_be32(*umask); 1184dff25ddbSAndreas Gruenbacher } 11851da177e4SLinus Torvalds 11861da177e4SLinus Torvalds /* out: */ 11871da177e4SLinus Torvalds } 11881da177e4SLinus Torvalds 1189cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 11901da177e4SLinus Torvalds { 1191475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1192475d4ba0STrond Myklebust encode_uint32(xdr, access); 11931da177e4SLinus Torvalds } 11941da177e4SLinus Torvalds 1195cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11961da177e4SLinus Torvalds { 1197ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11984ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1199566fcec6STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 12001da177e4SLinus Torvalds } 12011da177e4SLinus Torvalds 12020b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 12031da177e4SLinus Torvalds { 12048687b63aSAl Viro __be32 *p; 12051da177e4SLinus Torvalds 1206475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1207475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1208b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 120934558513SBenny Halevy *p = cpu_to_be32(args->count); 12101da177e4SLinus Torvalds } 12111da177e4SLinus Torvalds 1212cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 12131da177e4SLinus Torvalds { 12148687b63aSAl Viro __be32 *p; 12151da177e4SLinus Torvalds 1216475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1217475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 12181da177e4SLinus Torvalds 12191da177e4SLinus Torvalds switch (create->ftype) { 12201da177e4SLinus Torvalds case NF4LNK: 122113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 122234558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 12232fcc213aSChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, 12242fcc213aSChuck Lever create->u.symlink.len); 12252fcc213aSChuck Lever xdr->buf->flags |= XDRBUF_WRITE; 12261da177e4SLinus Torvalds break; 12271da177e4SLinus Torvalds 12281da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 122913c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1230e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 123134558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 12321da177e4SLinus Torvalds break; 12331da177e4SLinus Torvalds 12341da177e4SLinus Torvalds default: 12351da177e4SLinus Torvalds break; 12361da177e4SLinus Torvalds } 12371da177e4SLinus Torvalds 1238811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 123928cf22d0STrond Myklebust encode_attrs(xdr, create->attrs, create->label, &create->umask, 124028cf22d0STrond Myklebust create->server, create->server->attr_bitmask); 12411da177e4SLinus Torvalds } 12421da177e4SLinus Torvalds 124337c88763STrond Myklebust static void encode_getattr(struct xdr_stream *xdr, 124437c88763STrond Myklebust const __u32 *bitmap, const __u32 *mask, size_t len, 1245dae100c2SFred Isaman struct compound_hdr *hdr) 1246dae100c2SFred Isaman { 124737c88763STrond Myklebust __u32 masked_bitmap[nfs4_fattr_bitmap_maxsz]; 1248dae100c2SFred Isaman 1249ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 125037c88763STrond Myklebust if (mask) { 125137c88763STrond Myklebust if (WARN_ON_ONCE(len > ARRAY_SIZE(masked_bitmap))) 125237c88763STrond Myklebust len = ARRAY_SIZE(masked_bitmap); 125337c88763STrond Myklebust len = mask_bitmap4(bitmap, mask, masked_bitmap, len); 125437c88763STrond Myklebust bitmap = masked_bitmap; 1255dae100c2SFred Isaman } 125637c88763STrond Myklebust xdr_encode_bitmap4(xdr, bitmap, len); 1257dae100c2SFred Isaman } 1258dae100c2SFred Isaman 1259cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12601da177e4SLinus Torvalds { 126137c88763STrond Myklebust encode_getattr(xdr, nfs4_fattr_bitmap, bitmask, 126237c88763STrond Myklebust ARRAY_SIZE(nfs4_fattr_bitmap), hdr); 12631da177e4SLinus Torvalds } 12641da177e4SLinus Torvalds 126588034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 12661549210fSTrond Myklebust const u32 *open_bitmap, 126788034c3dSAndy Adamson struct compound_hdr *hdr) 126888034c3dSAndy Adamson { 126937c88763STrond Myklebust encode_getattr(xdr, open_bitmap, bitmask, 3, hdr); 127088034c3dSAndy Adamson } 127188034c3dSAndy Adamson 1272cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12731da177e4SLinus Torvalds { 127437c88763STrond Myklebust encode_getattr(xdr, nfs4_fsinfo_bitmap, bitmask, 127537c88763STrond Myklebust ARRAY_SIZE(nfs4_fsinfo_bitmap), hdr); 12761da177e4SLinus Torvalds } 12771da177e4SLinus Torvalds 1278cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1279830b8e33SManoj Naik { 128037c88763STrond Myklebust encode_getattr(xdr, nfs4_fs_locations_bitmap, bitmask, 128137c88763STrond Myklebust ARRAY_SIZE(nfs4_fs_locations_bitmap), hdr); 1282830b8e33SManoj Naik } 1283830b8e33SManoj Naik 1284cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12851da177e4SLinus Torvalds { 1286ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12871da177e4SLinus Torvalds } 12881da177e4SLinus Torvalds 1289cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12901da177e4SLinus Torvalds { 1291ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12926fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12931da177e4SLinus Torvalds } 12941da177e4SLinus Torvalds 1295911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1296911d1aafSTrond Myklebust { 1297f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1298911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1299911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1300911d1aafSTrond Myklebust } 1301911d1aafSTrond Myklebust 1302911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1303911d1aafSTrond Myklebust { 1304911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1305911d1aafSTrond Myklebust return ~(uint64_t)0; 1306911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1307911d1aafSTrond Myklebust } 1308911d1aafSTrond Myklebust 1309daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1310daccbdedSTrond Myklebust { 1311daccbdedSTrond Myklebust __be32 *p; 1312daccbdedSTrond Myklebust 1313d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1314daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1315d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1316daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1317d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1318daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1319daccbdedSTrond Myklebust } 1320daccbdedSTrond Myklebust 13211da177e4SLinus Torvalds /* 13221da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 13231da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 13241da177e4SLinus Torvalds */ 1325cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 13261da177e4SLinus Torvalds { 13278687b63aSAl Viro __be32 *p; 13281da177e4SLinus Torvalds 1329475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1330475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1331e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1332e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1333b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1334b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 133534558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1336911d1aafSTrond Myklebust if (args->new_lock_owner){ 13374ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1338425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->open_stateid); 13394ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1340daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13411da177e4SLinus Torvalds } 13421da177e4SLinus Torvalds else { 1343425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->lock_stateid); 13444ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 13451da177e4SLinus Torvalds } 13461da177e4SLinus Torvalds } 13471da177e4SLinus Torvalds 1348cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 13491da177e4SLinus Torvalds { 13508687b63aSAl Viro __be32 *p; 13511da177e4SLinus Torvalds 1352475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1353475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1354e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1355b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1356b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1357daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13581da177e4SLinus Torvalds } 13591da177e4SLinus Torvalds 1360cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13611da177e4SLinus Torvalds { 13628687b63aSAl Viro __be32 *p; 13631da177e4SLinus Torvalds 1364475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1365475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13664ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1367425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1368ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1369b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 137034558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13711da177e4SLinus Torvalds } 13721da177e4SLinus Torvalds 1373d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1374d3c7b7ccSTrond Myklebust { 1375ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1376d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1377d3c7b7ccSTrond Myklebust } 1378d3c7b7ccSTrond Myklebust 1379cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13801da177e4SLinus Torvalds { 1381ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13826fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13831da177e4SLinus Torvalds } 13841da177e4SLinus Torvalds 13855b5faaf6SJeff Layton static void encode_lookupp(struct xdr_stream *xdr, struct compound_hdr *hdr) 13865b5faaf6SJeff Layton { 13875b5faaf6SJeff Layton encode_op_hdr(xdr, OP_LOOKUPP, decode_lookupp_maxsz, hdr); 13885b5faaf6SJeff Layton } 13895b5faaf6SJeff Layton 13906ae37339STrond Myklebust static void encode_share_access(struct xdr_stream *xdr, u32 share_access) 13911da177e4SLinus Torvalds { 13928687b63aSAl Viro __be32 *p; 13931da177e4SLinus Torvalds 139413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 13956ae37339STrond Myklebust *p++ = cpu_to_be32(share_access); 139634558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13971da177e4SLinus Torvalds } 13981da177e4SLinus Torvalds 13991da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14001da177e4SLinus Torvalds { 14018687b63aSAl Viro __be32 *p; 14021da177e4SLinus Torvalds /* 14031da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 14041da177e4SLinus Torvalds * owner 4 = 32 14051da177e4SLinus Torvalds */ 14064ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 14076ae37339STrond Myklebust encode_share_access(xdr, arg->share_access); 140895b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1409b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 141095b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 141193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1412d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 141395b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 141495b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 14151da177e4SLinus Torvalds } 14161da177e4SLinus Torvalds 14171da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14181da177e4SLinus Torvalds { 14198687b63aSAl Viro __be32 *p; 14201da177e4SLinus Torvalds 142113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 1422549b19ccSTrond Myklebust switch(arg->createmode) { 1423549b19ccSTrond Myklebust case NFS4_CREATE_UNCHECKED: 142434558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 142528cf22d0STrond Myklebust encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, 142628cf22d0STrond Myklebust arg->server, arg->server->attr_bitmask); 14271da177e4SLinus Torvalds break; 1428549b19ccSTrond Myklebust case NFS4_CREATE_GUARDED: 14294882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 143028cf22d0STrond Myklebust encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, 143128cf22d0STrond Myklebust arg->server, arg->server->attr_bitmask); 1432549b19ccSTrond Myklebust break; 1433549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE: 1434549b19ccSTrond Myklebust *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 1435549b19ccSTrond Myklebust encode_nfs4_verifier(xdr, &arg->u.verifier); 1436549b19ccSTrond Myklebust break; 1437549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE4_1: 14384882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 14394882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 144028cf22d0STrond Myklebust encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, 144128cf22d0STrond Myklebust arg->server, arg->server->exclcreat_bitmask); 14424882ef72SAlexandros Batsakis } 14434882ef72SAlexandros Batsakis } 14441da177e4SLinus Torvalds 14451da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14461da177e4SLinus Torvalds { 14478687b63aSAl Viro __be32 *p; 14481da177e4SLinus Torvalds 144913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14501da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14511da177e4SLinus Torvalds case 0: 145234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14531da177e4SLinus Torvalds break; 14541da177e4SLinus Torvalds default: 145534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14561da177e4SLinus Torvalds encode_createmode(xdr, arg); 14571da177e4SLinus Torvalds } 14581da177e4SLinus Torvalds } 14591da177e4SLinus Torvalds 1460bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14611da177e4SLinus Torvalds { 14628687b63aSAl Viro __be32 *p; 14631da177e4SLinus Torvalds 146413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14651da177e4SLinus Torvalds switch (delegation_type) { 14661da177e4SLinus Torvalds case 0: 146734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14681da177e4SLinus Torvalds break; 14691da177e4SLinus Torvalds case FMODE_READ: 147034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14711da177e4SLinus Torvalds break; 14721da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 147334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14741da177e4SLinus Torvalds break; 14751da177e4SLinus Torvalds default: 14761da177e4SLinus Torvalds BUG(); 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds } 14791da177e4SLinus Torvalds 14801da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14811da177e4SLinus Torvalds { 14828687b63aSAl Viro __be32 *p; 14831da177e4SLinus Torvalds 148413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 148534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14861da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14871da177e4SLinus Torvalds } 14881da177e4SLinus Torvalds 1489bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14901da177e4SLinus Torvalds { 14918687b63aSAl Viro __be32 *p; 14921da177e4SLinus Torvalds 149313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 149434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14951da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14961da177e4SLinus Torvalds } 14971da177e4SLinus Torvalds 14981da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14991da177e4SLinus Torvalds { 15008687b63aSAl Viro __be32 *p; 15011da177e4SLinus Torvalds 1502ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1503ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1504ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 15051da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 15061da177e4SLinus Torvalds } 15071da177e4SLinus Torvalds 1508d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1509d9fc6619STrond Myklebust { 1510d9fc6619STrond Myklebust __be32 *p; 1511d9fc6619STrond Myklebust 1512d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1513d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1514d9fc6619STrond Myklebust } 1515d9fc6619STrond Myklebust 1516d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1517d9fc6619STrond Myklebust { 1518d9fc6619STrond Myklebust __be32 *p; 1519d9fc6619STrond Myklebust 1520d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1521d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1522d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1523d9fc6619STrond Myklebust } 1524d9fc6619STrond Myklebust 1525cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 15261da177e4SLinus Torvalds { 1527ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 15281da177e4SLinus Torvalds encode_openhdr(xdr, arg); 15291da177e4SLinus Torvalds encode_opentype(xdr, arg); 15301da177e4SLinus Torvalds switch (arg->claim) { 15311da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 15321da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 15331da177e4SLinus Torvalds break; 15341da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 15351da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 15361da177e4SLinus Torvalds break; 15371da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 15381da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 15391da177e4SLinus Torvalds break; 1540d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1541d9fc6619STrond Myklebust encode_claim_fh(xdr); 1542d9fc6619STrond Myklebust break; 1543d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1544d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1545d9fc6619STrond Myklebust break; 15461da177e4SLinus Torvalds default: 15471da177e4SLinus Torvalds BUG(); 15481da177e4SLinus Torvalds } 15491da177e4SLinus Torvalds } 15501da177e4SLinus Torvalds 1551cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15521da177e4SLinus Torvalds { 1553ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1554ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15554ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15561da177e4SLinus Torvalds } 15571da177e4SLinus Torvalds 1558cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15591da177e4SLinus Torvalds { 1560ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1561566fcec6STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 15624ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15636ae37339STrond Myklebust encode_share_access(xdr, arg->share_access); 15641da177e4SLinus Torvalds } 15651da177e4SLinus Torvalds 1566cf8cdbe5SAndy Adamson static void 1567d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15681da177e4SLinus Torvalds { 1569ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15706fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15711da177e4SLinus Torvalds } 15721da177e4SLinus Torvalds 1573cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15741da177e4SLinus Torvalds { 1575ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15761da177e4SLinus Torvalds } 15771da177e4SLinus Torvalds 15783c6b899cSAnna Schumaker static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 15793c6b899cSAnna Schumaker struct compound_hdr *hdr) 15801da177e4SLinus Torvalds { 15818687b63aSAl Viro __be32 *p; 15821da177e4SLinus Torvalds 1583ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15849b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 15851da177e4SLinus Torvalds 158613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1587b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 158834558513SBenny Halevy *p = cpu_to_be32(args->count); 15891da177e4SLinus Torvalds } 15901da177e4SLinus Torvalds 1591cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15921da177e4SLinus Torvalds { 1593aa9c2669SDavid Quigley uint32_t attrs[3] = { 159428331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 159528331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 159628331a46STrond Myklebust }; 15976f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1598cd93710eSChuck Lever __be32 *p, verf[2]; 1599d204c5d2STrond Myklebust uint32_t attrlen = 0; 1600d204c5d2STrond Myklebust unsigned int i; 16011da177e4SLinus Torvalds 160282f2e547SBryan Schumaker if (readdir->plus) { 160382f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 160428331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 160582f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 160682f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 160782f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 160882f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 1609d204c5d2STrond Myklebust attrs[2] |= FATTR4_WORD2_SECURITY_LABEL; 16106f7a35bdSTrond Myklebust dircount >>= 1; 161182f2e547SBryan Schumaker } 161228331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 161328331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 161428331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 1615d204c5d2STrond Myklebust for (i = 0; i < ARRAY_SIZE(attrs); i++) { 1616d204c5d2STrond Myklebust attrs[i] &= readdir->bitmask[i]; 1617d204c5d2STrond Myklebust if (attrs[i] != 0) 1618d204c5d2STrond Myklebust attrlen = i+1; 1619d204c5d2STrond Myklebust } 16206f7a35bdSTrond Myklebust 1621475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1622ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1623cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1624d204c5d2STrond Myklebust p = reserve_space(xdr, 12 + (attrlen << 2)); 16256f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 16266f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 1627d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrlen); 1628d204c5d2STrond Myklebust for (i = 0; i < attrlen; i++) 1629d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrs[i]); 1630cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 1631aa9c2669SDavid Quigley 1632aa9c2669SDavid Quigley dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n", 163344109241SFred Isaman __func__, 1634eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1635cd93710eSChuck Lever verf[0], verf[1], 1636eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1637aa9c2669SDavid Quigley attrs[1] & readdir->bitmask[1], 1638aa9c2669SDavid Quigley attrs[2] & readdir->bitmask[2]); 16391da177e4SLinus Torvalds } 16401da177e4SLinus Torvalds 1641cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16421da177e4SLinus Torvalds { 1643ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 16441da177e4SLinus Torvalds } 16451da177e4SLinus Torvalds 1646cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16471da177e4SLinus Torvalds { 1648ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 16496fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16501da177e4SLinus Torvalds } 16511da177e4SLinus Torvalds 1652cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16531da177e4SLinus Torvalds { 1654ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1655811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1656811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 16571da177e4SLinus Torvalds } 16581da177e4SLinus Torvalds 1659bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1660bb4dae5eSChuck Lever struct compound_hdr *hdr) 16611da177e4SLinus Torvalds { 1662475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1663ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16641da177e4SLinus Torvalds } 16651da177e4SLinus Torvalds 1666cf8cdbe5SAndy Adamson static void 1667d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 166856ae19f3STrond Myklebust { 1669ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 167056ae19f3STrond Myklebust } 167156ae19f3STrond Myklebust 16729f06c719SChuck Lever static void 1673fcc85819SChristoph Hellwig encode_setacl(struct xdr_stream *xdr, const struct nfs_setaclargs *arg, 1674fcc85819SChristoph Hellwig struct compound_hdr *hdr) 167523ec6965SJ. Bruce Fields { 16768687b63aSAl Viro __be32 *p; 167723ec6965SJ. Bruce Fields 1678ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1679ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 168013c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1681e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 168234558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 168313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 168434558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 16858fbcf237SAndreas Gruenbacher xdr_write_pages(xdr, arg->acl_pages, 0, arg->acl_len); 168623ec6965SJ. Bruce Fields } 168723ec6965SJ. Bruce Fields 1688cf8cdbe5SAndy Adamson static void 1689d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16901da177e4SLinus Torvalds { 1691ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16921da177e4SLinus Torvalds } 16931da177e4SLinus Torvalds 1694cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16951da177e4SLinus Torvalds { 1696ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1697ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 169828cf22d0STrond Myklebust encode_attrs(xdr, arg->iap, arg->label, NULL, server, 169928cf22d0STrond Myklebust server->attr_bitmask); 17001da177e4SLinus Torvalds } 17011da177e4SLinus Torvalds 1702cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 17031da177e4SLinus Torvalds { 17048687b63aSAl Viro __be32 *p; 17051da177e4SLinus Torvalds 170670019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1707cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 17081da177e4SLinus Torvalds 17093a6bb738SJeff Layton encode_string(xdr, strlen(setclientid->sc_clnt->cl_owner_id), 17103a6bb738SJeff Layton setclientid->sc_clnt->cl_owner_id); 171113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 171234558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 17131da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 17141da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 171513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 17163a6bb738SJeff Layton *p = cpu_to_be32(setclientid->sc_clnt->cl_cb_ident); 17171da177e4SLinus Torvalds } 17181da177e4SLinus Torvalds 1719bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 17201da177e4SLinus Torvalds { 1721475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1722475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1723ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1724cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 17251da177e4SLinus Torvalds } 17261da177e4SLinus Torvalds 17273c6b899cSAnna Schumaker static void encode_write(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 17283c6b899cSAnna Schumaker struct compound_hdr *hdr) 17291da177e4SLinus Torvalds { 17308687b63aSAl Viro __be32 *p; 17311da177e4SLinus Torvalds 1732ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 17339b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 17341da177e4SLinus Torvalds 173513c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1736b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1737e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 173834558513SBenny Halevy *p = cpu_to_be32(args->count); 17391da177e4SLinus Torvalds 17401da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 17411da177e4SLinus Torvalds } 17421da177e4SLinus Torvalds 1743cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17441da177e4SLinus Torvalds { 1745ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1746ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 17471da177e4SLinus Torvalds } 17489b7b9fccSAndy Adamson 17495a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17505a5ea0d4SBryan Schumaker { 1751ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 17526fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 17535a5ea0d4SBryan Schumaker } 17545a5ea0d4SBryan Schumaker 175599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17569b7b9fccSAndy Adamson /* NFSv4.1 operations */ 17577c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 1758fcc85819SChristoph Hellwig const struct nfs41_bind_conn_to_session_args *args, 17597c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 17607c44f1aeSWeston Andros Adamson { 17617c44f1aeSWeston Andros Adamson __be32 *p; 17627c44f1aeSWeston Andros Adamson 17637c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17647c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 176571a097c6STrond Myklebust encode_opaque_fixed(xdr, args->sessionid.data, NFS4_MAX_SESSIONID_LEN); 17667c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 176771a097c6STrond Myklebust *p++ = cpu_to_be32(args->dir); 176871a097c6STrond Myklebust *p = (args->use_conn_in_rdma_mode) ? cpu_to_be32(1) : cpu_to_be32(0); 17697c44f1aeSWeston Andros Adamson } 17707c44f1aeSWeston Andros Adamson 1771fcc85819SChristoph Hellwig static void encode_op_map(struct xdr_stream *xdr, const struct nfs4_op_map *op_map) 17722031cd1aSWeston Andros Adamson { 17732031cd1aSWeston Andros Adamson unsigned int i; 17742031cd1aSWeston Andros Adamson encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS); 17752031cd1aSWeston Andros Adamson for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++) 17762031cd1aSWeston Andros Adamson encode_uint32(xdr, op_map->u.words[i]); 17772031cd1aSWeston Andros Adamson } 17782031cd1aSWeston Andros Adamson 177999fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 1780fcc85819SChristoph Hellwig const struct nfs41_exchange_id_args *args, 178199fe60d0SBenny Halevy struct compound_hdr *hdr) 178299fe60d0SBenny Halevy { 178399fe60d0SBenny Halevy __be32 *p; 1784d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1785db8ac8baSWeston Andros Adamson int len = 0; 178699fe60d0SBenny Halevy 178770019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1788fd40559cSTrond Myklebust encode_nfs4_verifier(xdr, &args->verifier); 178999fe60d0SBenny Halevy 17903a6bb738SJeff Layton encode_string(xdr, strlen(args->client->cl_owner_id), 17913a6bb738SJeff Layton args->client->cl_owner_id); 179299fe60d0SBenny Halevy 17932031cd1aSWeston Andros Adamson encode_uint32(xdr, args->flags); 17942031cd1aSWeston Andros Adamson encode_uint32(xdr, args->state_protect.how); 17952031cd1aSWeston Andros Adamson 17962031cd1aSWeston Andros Adamson switch (args->state_protect.how) { 17972031cd1aSWeston Andros Adamson case SP4_NONE: 17982031cd1aSWeston Andros Adamson break; 17992031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 18002031cd1aSWeston Andros Adamson encode_op_map(xdr, &args->state_protect.enforce); 18012031cd1aSWeston Andros Adamson encode_op_map(xdr, &args->state_protect.allow); 18022031cd1aSWeston Andros Adamson break; 18032031cd1aSWeston Andros Adamson default: 18042031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 18052031cd1aSWeston Andros Adamson break; 18062031cd1aSWeston Andros Adamson } 1807db8ac8baSWeston Andros Adamson 1808db8ac8baSWeston Andros Adamson if (send_implementation_id && 1809db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1810db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1811d751f748SJim Rees <= sizeof(impl_name) + 1) 1812db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1813db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1814db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1815db8ac8baSWeston Andros Adamson 1816db8ac8baSWeston Andros Adamson if (len > 0) { 18172031cd1aSWeston Andros Adamson encode_uint32(xdr, 1); /* implementation id array length=1 */ 1818db8ac8baSWeston Andros Adamson 1819db8ac8baSWeston Andros Adamson encode_string(xdr, 1820db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1821db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1822db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1823db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1824db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1825db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1826db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1827db8ac8baSWeston Andros Adamson } else 18282031cd1aSWeston Andros Adamson encode_uint32(xdr, 0); /* implementation id array length=0 */ 182999fe60d0SBenny Halevy } 1830fc931582SAndy Adamson 1831fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1832fcc85819SChristoph Hellwig const struct nfs41_create_session_args *args, 1833fc931582SAndy Adamson struct compound_hdr *hdr) 1834fc931582SAndy Adamson { 1835fc931582SAndy Adamson __be32 *p; 1836fc931582SAndy Adamson struct nfs_client *clp = args->client; 183789f0ff38STrond Myklebust struct rpc_clnt *clnt = clp->cl_rpcclient; 1838f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 18398e0d46e1SMike Sager u32 max_resp_sz_cached; 18408e0d46e1SMike Sager 18418e0d46e1SMike Sager /* 18428e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 18438e0d46e1SMike Sager * 2 is the verifier. 18448e0d46e1SMike Sager */ 184535c036efSJ. Bruce Fields max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 2) 184635c036efSJ. Bruce Fields * XDR_UNIT + RPC_MAX_AUTH_SIZE; 1847fc931582SAndy Adamson 1848475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 184989f0ff38STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + clnt->cl_nodelen + 12); 185079969dd1STrond Myklebust p = xdr_encode_hyper(p, args->clientid); 185179969dd1STrond Myklebust *p++ = cpu_to_be32(args->seqid); /*Sequence id */ 1852e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1853fc931582SAndy Adamson 1854fc931582SAndy Adamson /* Fore Channel */ 1855c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1856e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1857e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18588e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1859e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1860e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1861e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1862fc931582SAndy Adamson 1863fc931582SAndy Adamson /* Back Channel */ 1864c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1866e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1868e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1869e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1870e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1871fc931582SAndy Adamson 1872e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1873e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1874e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1875fc931582SAndy Adamson 1876fc931582SAndy Adamson /* authsys_parms rfc1831 */ 18772f86e091SDeepa Dinamani *p++ = cpu_to_be32(ktime_to_ns(nn->boot_time)); /* stamp */ 187889f0ff38STrond Myklebust p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen); 1879e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1880e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 188134558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1882fc931582SAndy Adamson } 18830f3e66c6SAndy Adamson 18840f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 1885fcc85819SChristoph Hellwig const struct nfs4_session *session, 18860f3e66c6SAndy Adamson struct compound_hdr *hdr) 18870f3e66c6SAndy Adamson { 1888475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1889475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18900f3e66c6SAndy Adamson } 189118019753SRicardo Labiaga 189266245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 189366245539STrond Myklebust uint64_t clientid, 189466245539STrond Myklebust struct compound_hdr *hdr) 189566245539STrond Myklebust { 189666245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 189766245539STrond Myklebust encode_uint64(xdr, clientid); 189866245539STrond Myklebust } 189966245539STrond Myklebust 190018019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 1901fcc85819SChristoph Hellwig const struct nfs41_reclaim_complete_args *args, 190218019753SRicardo Labiaga struct compound_hdr *hdr) 190318019753SRicardo Labiaga { 1904475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1905475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 190618019753SRicardo Labiaga } 190799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 190899fe60d0SBenny Halevy 19099b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 19109b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 19119b7b9fccSAndy Adamson struct compound_hdr *hdr) 19129b7b9fccSAndy Adamson { 19139b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 19142b2fa717STrond Myklebust struct nfs4_session *session; 1915fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 19162b2fa717STrond Myklebust struct nfs4_slot *slot = args->sa_slot; 1917fc01cea9SAndy Adamson __be32 *p; 19189b7b9fccSAndy Adamson 19192b2fa717STrond Myklebust tp = slot->table; 19202b2fa717STrond Myklebust session = tp->session; 19213bd2384aSChuck Lever if (!session) 19223bd2384aSChuck Lever return; 1923fc01cea9SAndy Adamson 1924475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1925fc01cea9SAndy Adamson 1926fc01cea9SAndy Adamson /* 1927fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1928fc01cea9SAndy Adamson */ 1929fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1930fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1931fc01cea9SAndy Adamson __func__, 1932fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1933fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1934fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1935fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 19362b2fa717STrond Myklebust slot->seq_nr, slot->slot_nr, 1937fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1938475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 193993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1940e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 19412b2fa717STrond Myklebust *p++ = cpu_to_be32(slot->slot_nr); 1942e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 194334558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19449b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19459b7b9fccSAndy Adamson } 19469b7b9fccSAndy Adamson 1947b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1948b1f69b75SAndy Adamson static void 1949b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1950b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1951b1f69b75SAndy Adamson struct compound_hdr *hdr) 1952b1f69b75SAndy Adamson { 1953b1f69b75SAndy Adamson __be32 *p; 1954b1f69b75SAndy Adamson 1955475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 195684c9dee3SChristoph Hellwig p = reserve_space(xdr, NFS4_DEVICEID4_SIZE + 4 + 4); 1957b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1958b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1959b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1960f1c097beSAndy Adamson *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */ 196184c9dee3SChristoph Hellwig 196284c9dee3SChristoph Hellwig p = reserve_space(xdr, 4 + 4); 196384c9dee3SChristoph Hellwig *p++ = cpu_to_be32(1); /* bitmap length */ 19644e590803STrond Myklebust *p++ = cpu_to_be32(args->notify_types); 1965b1f69b75SAndy Adamson } 1966b1f69b75SAndy Adamson 1967b1f69b75SAndy Adamson static void 1968b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1969b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1970b1f69b75SAndy Adamson struct compound_hdr *hdr) 1971b1f69b75SAndy Adamson { 1972b1f69b75SAndy Adamson __be32 *p; 1973b1f69b75SAndy Adamson 1974475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1975475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1976b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1977b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1978b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1979b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1980b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1981b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1982ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1983475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1984b1f69b75SAndy Adamson 1985b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1986b1f69b75SAndy Adamson __func__, 1987b1f69b75SAndy Adamson args->type, 1988b1f69b75SAndy Adamson args->range.iomode, 1989b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1990b1f69b75SAndy Adamson (unsigned long)args->range.length, 1991b1f69b75SAndy Adamson args->maxcount); 1992b1f69b75SAndy Adamson } 1993863a3c6cSAndy Adamson 1994863a3c6cSAndy Adamson static int 1995863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1996ac7db726SBenny Halevy struct inode *inode, 1997fcc85819SChristoph Hellwig const struct nfs4_layoutcommit_args *args, 1998863a3c6cSAndy Adamson struct compound_hdr *hdr) 1999863a3c6cSAndy Adamson { 2000863a3c6cSAndy Adamson __be32 *p; 2001863a3c6cSAndy Adamson 2002863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 2003863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 2004863a3c6cSAndy Adamson 2005475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 2006475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 2007863a3c6cSAndy Adamson /* Only whole file layouts */ 2008863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 20093557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 2010ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 2011ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 20122e18d4d8STrond Myklebust if (args->lastbytewritten != U64_MAX) { 2013ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 2014863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 2015863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 20162e18d4d8STrond Myklebust } else { 20172e18d4d8STrond Myklebust p = reserve_space(xdr, 12); 20182e18d4d8STrond Myklebust *p++ = cpu_to_be32(0); /* newoffset = FALSE */ 20192e18d4d8STrond Myklebust } 2020863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 2021863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 2022ac7db726SBenny Halevy 20235f919c9fSChristoph Hellwig encode_uint32(xdr, args->layoutupdate_len); 202473504740STrond Myklebust if (args->layoutupdate_pages) 20255f919c9fSChristoph Hellwig xdr_write_pages(xdr, args->layoutupdate_pages, 0, 20265f919c9fSChristoph Hellwig args->layoutupdate_len); 2027863a3c6cSAndy Adamson 2028863a3c6cSAndy Adamson return 0; 2029863a3c6cSAndy Adamson } 2030cbe82603SBenny Halevy 2031cbe82603SBenny Halevy static void 2032cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2033cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2034cbe82603SBenny Halevy struct compound_hdr *hdr) 2035cbe82603SBenny Halevy { 2036cbe82603SBenny Halevy __be32 *p; 2037cbe82603SBenny Halevy 2038475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 2039475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 2040cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2041cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 204215eb67c1SPeng Tao *p++ = cpu_to_be32(args->range.iomode); 2043cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2044ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 204515eb67c1SPeng Tao p = xdr_encode_hyper(p, args->range.offset); 204615eb67c1SPeng Tao p = xdr_encode_hyper(p, args->range.length); 2047cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2048ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 2049cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 20504d796d75STrond Myklebust if (args->ld_private->ops && args->ld_private->ops->encode) 20514d796d75STrond Myklebust args->ld_private->ops->encode(xdr, args, args->ld_private); 205294e5c571STrond Myklebust else 2053475d4ba0STrond Myklebust encode_uint32(xdr, 0); 2054cbe82603SBenny Halevy } 2055fca78d6dSBryan Schumaker 2056fca78d6dSBryan Schumaker static int 2057fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2058fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2059fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2060fca78d6dSBryan Schumaker { 2061475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 2062475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2063fca78d6dSBryan Schumaker return 0; 2064fca78d6dSBryan Schumaker } 20657d974794SBryan Schumaker 20667d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 2067fcc85819SChristoph Hellwig const struct nfs41_test_stateid_args *args, 20687d974794SBryan Schumaker struct compound_hdr *hdr) 20697d974794SBryan Schumaker { 2070475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2071475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2072ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20737d974794SBryan Schumaker } 20749aeda35fSBryan Schumaker 20759aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 2076fcc85819SChristoph Hellwig const struct nfs41_free_stateid_args *args, 20779aeda35fSBryan Schumaker struct compound_hdr *hdr) 20789aeda35fSBryan Schumaker { 2079ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 20807c1d5faeSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 20819aeda35fSBryan Schumaker } 2082cf805165STrond Myklebust #else 2083cf805165STrond Myklebust static inline void 2084cf805165STrond Myklebust encode_layoutreturn(struct xdr_stream *xdr, 2085cf805165STrond Myklebust const struct nfs4_layoutreturn_args *args, 2086cf805165STrond Myklebust struct compound_hdr *hdr) 2087cf805165STrond Myklebust { 2088cf805165STrond Myklebust } 208956f487f8SFred Isaman 209056f487f8SFred Isaman static void 209156f487f8SFred Isaman encode_layoutget(struct xdr_stream *xdr, 209256f487f8SFred Isaman const struct nfs4_layoutget_args *args, 209356f487f8SFred Isaman struct compound_hdr *hdr) 209456f487f8SFred Isaman { 209556f487f8SFred Isaman } 2096b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2097b1f69b75SAndy Adamson 20981da177e4SLinus Torvalds /* 20991da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 21001da177e4SLinus Torvalds */ 21011da177e4SLinus Torvalds 210266cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 210366cc0429SBenny Halevy { 210466cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 21053bd2384aSChuck Lever struct nfs4_session *session = args->sa_slot->table->session; 21063bd2384aSChuck Lever if (session) 21073bd2384aSChuck Lever return session->clp->cl_mvops->minor_version; 210866cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 210966cc0429SBenny Halevy return 0; 211066cc0429SBenny Halevy } 211166cc0429SBenny Halevy 21121da177e4SLinus Torvalds /* 21131da177e4SLinus Torvalds * Encode an ACCESS request 21141da177e4SLinus Torvalds */ 21159f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 2116fcc85819SChristoph Hellwig const void *data) 21171da177e4SLinus Torvalds { 2118fcc85819SChristoph Hellwig const struct nfs4_accessargs *args = data; 21191da177e4SLinus Torvalds struct compound_hdr hdr = { 212066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21211da177e4SLinus Torvalds }; 21221da177e4SLinus Torvalds 21239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21249f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21259f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21269f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21278bcbe7d9STrond Myklebust if (args->bitmask) 21289f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2129d017931cSAndy Adamson encode_nops(&hdr); 21301da177e4SLinus Torvalds } 21311da177e4SLinus Torvalds 21321da177e4SLinus Torvalds /* 21331da177e4SLinus Torvalds * Encode LOOKUP request 21341da177e4SLinus Torvalds */ 21359f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 2136fcc85819SChristoph Hellwig const void *data) 21371da177e4SLinus Torvalds { 2138fcc85819SChristoph Hellwig const struct nfs4_lookup_arg *args = data; 21391da177e4SLinus Torvalds struct compound_hdr hdr = { 214066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21411da177e4SLinus Torvalds }; 21421da177e4SLinus Torvalds 21439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21449f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21459f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21469f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21479f06c719SChuck Lever encode_getfh(xdr, &hdr); 21489f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2149d017931cSAndy Adamson encode_nops(&hdr); 21501da177e4SLinus Torvalds } 21511da177e4SLinus Torvalds 21521da177e4SLinus Torvalds /* 21535b5faaf6SJeff Layton * Encode LOOKUPP request 21545b5faaf6SJeff Layton */ 21555b5faaf6SJeff Layton static void nfs4_xdr_enc_lookupp(struct rpc_rqst *req, struct xdr_stream *xdr, 21565b5faaf6SJeff Layton const void *data) 21575b5faaf6SJeff Layton { 21585b5faaf6SJeff Layton const struct nfs4_lookupp_arg *args = data; 21595b5faaf6SJeff Layton struct compound_hdr hdr = { 21605b5faaf6SJeff Layton .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21615b5faaf6SJeff Layton }; 21625b5faaf6SJeff Layton 21635b5faaf6SJeff Layton encode_compound_hdr(xdr, req, &hdr); 21645b5faaf6SJeff Layton encode_sequence(xdr, &args->seq_args, &hdr); 21655b5faaf6SJeff Layton encode_putfh(xdr, args->fh, &hdr); 21665b5faaf6SJeff Layton encode_lookupp(xdr, &hdr); 21675b5faaf6SJeff Layton encode_getfh(xdr, &hdr); 21685b5faaf6SJeff Layton encode_getfattr(xdr, args->bitmask, &hdr); 21695b5faaf6SJeff Layton encode_nops(&hdr); 21705b5faaf6SJeff Layton } 21715b5faaf6SJeff Layton 21725b5faaf6SJeff Layton /* 21731da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21741da177e4SLinus Torvalds */ 21759f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21769f06c719SChuck Lever struct xdr_stream *xdr, 2177fcc85819SChristoph Hellwig const void *data) 21781da177e4SLinus Torvalds { 2179fcc85819SChristoph Hellwig const struct nfs4_lookup_root_arg *args = data; 21801da177e4SLinus Torvalds struct compound_hdr hdr = { 218166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21821da177e4SLinus Torvalds }; 21831da177e4SLinus Torvalds 21849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21859f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21869f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21879f06c719SChuck Lever encode_getfh(xdr, &hdr); 21889f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2189d017931cSAndy Adamson encode_nops(&hdr); 21901da177e4SLinus Torvalds } 21911da177e4SLinus Torvalds 21921da177e4SLinus Torvalds /* 21931da177e4SLinus Torvalds * Encode REMOVE request 21941da177e4SLinus Torvalds */ 21959f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 2196fcc85819SChristoph Hellwig const void *data) 21971da177e4SLinus Torvalds { 2198fcc85819SChristoph Hellwig const struct nfs_removeargs *args = data; 21991da177e4SLinus Torvalds struct compound_hdr hdr = { 220066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22011da177e4SLinus Torvalds }; 22021da177e4SLinus Torvalds 22039f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22049f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22059f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22069f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2207d017931cSAndy Adamson encode_nops(&hdr); 22081da177e4SLinus Torvalds } 22091da177e4SLinus Torvalds 22101da177e4SLinus Torvalds /* 22111da177e4SLinus Torvalds * Encode RENAME request 22121da177e4SLinus Torvalds */ 22139f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 2214fcc85819SChristoph Hellwig const void *data) 22151da177e4SLinus Torvalds { 2216fcc85819SChristoph Hellwig const struct nfs_renameargs *args = data; 22171da177e4SLinus Torvalds struct compound_hdr hdr = { 221866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22191da177e4SLinus Torvalds }; 22201da177e4SLinus Torvalds 22219f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22229f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22239f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 22249f06c719SChuck Lever encode_savefh(xdr, &hdr); 22259f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 22269f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2227d017931cSAndy Adamson encode_nops(&hdr); 22281da177e4SLinus Torvalds } 22291da177e4SLinus Torvalds 22301da177e4SLinus Torvalds /* 22311da177e4SLinus Torvalds * Encode LINK request 22321da177e4SLinus Torvalds */ 22339f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 2234fcc85819SChristoph Hellwig const void *data) 22351da177e4SLinus Torvalds { 2236fcc85819SChristoph Hellwig const struct nfs4_link_arg *args = data; 22371da177e4SLinus Torvalds struct compound_hdr hdr = { 223866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22391da177e4SLinus Torvalds }; 22401da177e4SLinus Torvalds 22419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22449f06c719SChuck Lever encode_savefh(xdr, &hdr); 22459f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22469f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 22479f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22489f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2249d017931cSAndy Adamson encode_nops(&hdr); 22501da177e4SLinus Torvalds } 22511da177e4SLinus Torvalds 22521da177e4SLinus Torvalds /* 22531da177e4SLinus Torvalds * Encode CREATE request 22541da177e4SLinus Torvalds */ 22559f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 2256fcc85819SChristoph Hellwig const void *data) 22571da177e4SLinus Torvalds { 2258fcc85819SChristoph Hellwig const struct nfs4_create_arg *args = data; 22591da177e4SLinus Torvalds struct compound_hdr hdr = { 226066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22611da177e4SLinus Torvalds }; 22621da177e4SLinus Torvalds 22639f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22649f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22659f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22669f06c719SChuck Lever encode_create(xdr, args, &hdr); 22679f06c719SChuck Lever encode_getfh(xdr, &hdr); 22689f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2269d017931cSAndy Adamson encode_nops(&hdr); 22701da177e4SLinus Torvalds } 22711da177e4SLinus Torvalds 22721da177e4SLinus Torvalds /* 22731da177e4SLinus Torvalds * Encode SYMLINK request 22741da177e4SLinus Torvalds */ 22759f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 2276fcc85819SChristoph Hellwig const void *data) 22771da177e4SLinus Torvalds { 2278fcc85819SChristoph Hellwig const struct nfs4_create_arg *args = data; 2279fcc85819SChristoph Hellwig 22809f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22811da177e4SLinus Torvalds } 22821da177e4SLinus Torvalds 22831da177e4SLinus Torvalds /* 22841da177e4SLinus Torvalds * Encode GETATTR request 22851da177e4SLinus Torvalds */ 22869f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 2287fcc85819SChristoph Hellwig const void *data) 22881da177e4SLinus Torvalds { 2289fcc85819SChristoph Hellwig const struct nfs4_getattr_arg *args = data; 22901da177e4SLinus Torvalds struct compound_hdr hdr = { 229166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22921da177e4SLinus Torvalds }; 22931da177e4SLinus Torvalds 22949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22959f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22969f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22979f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2298d017931cSAndy Adamson encode_nops(&hdr); 22991da177e4SLinus Torvalds } 23001da177e4SLinus Torvalds 23011da177e4SLinus Torvalds /* 23021da177e4SLinus Torvalds * Encode a CLOSE request 23031da177e4SLinus Torvalds */ 23049f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 2305fcc85819SChristoph Hellwig const void *data) 23061da177e4SLinus Torvalds { 2307fcc85819SChristoph Hellwig const struct nfs_closeargs *args = data; 23081da177e4SLinus Torvalds struct compound_hdr hdr = { 230966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23101da177e4SLinus Torvalds }; 23111da177e4SLinus Torvalds 23129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23139f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23149f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2315cf805165STrond Myklebust if (args->lr_args) 2316cf805165STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 23173ecefc92STrond Myklebust if (args->bitmask != NULL) 23189f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2319d8d84983STrond Myklebust encode_close(xdr, args, &hdr); 2320d017931cSAndy Adamson encode_nops(&hdr); 23211da177e4SLinus Torvalds } 23221da177e4SLinus Torvalds 23231da177e4SLinus Torvalds /* 23241da177e4SLinus Torvalds * Encode an OPEN request 23251da177e4SLinus Torvalds */ 23269f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 2327fcc85819SChristoph Hellwig const void *data) 23281da177e4SLinus Torvalds { 2329fcc85819SChristoph Hellwig const struct nfs_openargs *args = data; 23301da177e4SLinus Torvalds struct compound_hdr hdr = { 233166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23321da177e4SLinus Torvalds }; 23331da177e4SLinus Torvalds 23349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23359f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23369f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23379f06c719SChuck Lever encode_open(xdr, args, &hdr); 23389f06c719SChuck Lever encode_getfh(xdr, &hdr); 2339ae2bb032SWeston Andros Adamson if (args->access) 23406168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 23411549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 234256f487f8SFred Isaman if (args->lg_args) { 234356f487f8SFred Isaman encode_layoutget(xdr, args->lg_args, &hdr); 234456f487f8SFred Isaman xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 234556f487f8SFred Isaman args->lg_args->layout.pages, 234656f487f8SFred Isaman 0, args->lg_args->layout.pglen); 234756f487f8SFred Isaman } 2348d017931cSAndy Adamson encode_nops(&hdr); 23491da177e4SLinus Torvalds } 23501da177e4SLinus Torvalds 23511da177e4SLinus Torvalds /* 23521da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 23531da177e4SLinus Torvalds */ 23549f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 23559f06c719SChuck Lever struct xdr_stream *xdr, 2356fcc85819SChristoph Hellwig const void *data) 23571da177e4SLinus Torvalds { 2358fcc85819SChristoph Hellwig const struct nfs_open_confirmargs *args = data; 23591da177e4SLinus Torvalds struct compound_hdr hdr = { 2360d017931cSAndy Adamson .nops = 0, 23611da177e4SLinus Torvalds }; 23621da177e4SLinus Torvalds 23639f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23649f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23659f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2366d017931cSAndy Adamson encode_nops(&hdr); 23671da177e4SLinus Torvalds } 23681da177e4SLinus Torvalds 23691da177e4SLinus Torvalds /* 23701da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23711da177e4SLinus Torvalds */ 23729f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23739f06c719SChuck Lever struct xdr_stream *xdr, 2374fcc85819SChristoph Hellwig const void *data) 23751da177e4SLinus Torvalds { 2376fcc85819SChristoph Hellwig const struct nfs_openargs *args = data; 23771da177e4SLinus Torvalds struct compound_hdr hdr = { 237866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23791da177e4SLinus Torvalds }; 23801da177e4SLinus Torvalds 23819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23829f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23839f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23849f06c719SChuck Lever encode_open(xdr, args, &hdr); 2385ae2bb032SWeston Andros Adamson if (args->access) 23866168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2387e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 238856f487f8SFred Isaman if (args->lg_args) { 238956f487f8SFred Isaman encode_layoutget(xdr, args->lg_args, &hdr); 239056f487f8SFred Isaman xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 239156f487f8SFred Isaman args->lg_args->layout.pages, 239256f487f8SFred Isaman 0, args->lg_args->layout.pglen); 239356f487f8SFred Isaman } 2394d017931cSAndy Adamson encode_nops(&hdr); 23951da177e4SLinus Torvalds } 23961da177e4SLinus Torvalds 23971da177e4SLinus Torvalds /* 23981da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23991da177e4SLinus Torvalds */ 24009f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 24019f06c719SChuck Lever struct xdr_stream *xdr, 2402fcc85819SChristoph Hellwig const void *data) 24031da177e4SLinus Torvalds { 2404fcc85819SChristoph Hellwig const struct nfs_closeargs *args = data; 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); 2412b6808145STrond Myklebust if (args->lr_args) 2413b6808145STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 24149f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 2415d017931cSAndy Adamson encode_nops(&hdr); 24161da177e4SLinus Torvalds } 24171da177e4SLinus Torvalds 24181da177e4SLinus Torvalds /* 24191da177e4SLinus Torvalds * Encode a LOCK request 24201da177e4SLinus Torvalds */ 24219f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 2422fcc85819SChristoph Hellwig const void *data) 24231da177e4SLinus Torvalds { 2424fcc85819SChristoph Hellwig const struct nfs_lock_args *args = data; 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_lock(xdr, args, &hdr); 2433d017931cSAndy Adamson encode_nops(&hdr); 24341da177e4SLinus Torvalds } 24351da177e4SLinus Torvalds 24361da177e4SLinus Torvalds /* 24371da177e4SLinus Torvalds * Encode a LOCKT request 24381da177e4SLinus Torvalds */ 24399f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 2440fcc85819SChristoph Hellwig const void *data) 24411da177e4SLinus Torvalds { 2442fcc85819SChristoph Hellwig const struct nfs_lockt_args *args = data; 24431da177e4SLinus Torvalds struct compound_hdr hdr = { 244466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24451da177e4SLinus Torvalds }; 24461da177e4SLinus Torvalds 24479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24489f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24499f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24509f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2451d017931cSAndy Adamson encode_nops(&hdr); 24521da177e4SLinus Torvalds } 24531da177e4SLinus Torvalds 24541da177e4SLinus Torvalds /* 24551da177e4SLinus Torvalds * Encode a LOCKU request 24561da177e4SLinus Torvalds */ 24579f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 2458fcc85819SChristoph Hellwig const void *data) 24591da177e4SLinus Torvalds { 2460fcc85819SChristoph Hellwig const struct nfs_locku_args *args = data; 24611da177e4SLinus Torvalds struct compound_hdr hdr = { 246266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24631da177e4SLinus Torvalds }; 24641da177e4SLinus Torvalds 24659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24669f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24679f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24689f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2469d017931cSAndy Adamson encode_nops(&hdr); 24701da177e4SLinus Torvalds } 24711da177e4SLinus Torvalds 24729f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 24739f06c719SChuck Lever struct xdr_stream *xdr, 2474fcc85819SChristoph Hellwig const void *data) 2475d3c7b7ccSTrond Myklebust { 2476fcc85819SChristoph Hellwig const struct nfs_release_lockowner_args *args = data; 2477d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2478d3c7b7ccSTrond Myklebust .minorversion = 0, 2479d3c7b7ccSTrond Myklebust }; 2480d3c7b7ccSTrond Myklebust 24819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24829f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2483d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2484d3c7b7ccSTrond Myklebust } 2485d3c7b7ccSTrond Myklebust 24861da177e4SLinus Torvalds /* 24871da177e4SLinus Torvalds * Encode a READLINK request 24881da177e4SLinus Torvalds */ 24899f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 2490fcc85819SChristoph Hellwig const void *data) 24911da177e4SLinus Torvalds { 2492fcc85819SChristoph Hellwig const struct nfs4_readlink *args = data; 24931da177e4SLinus Torvalds struct compound_hdr hdr = { 249466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24951da177e4SLinus Torvalds }; 24961da177e4SLinus Torvalds 24979f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24989f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24999f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25009f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2501e3a535e1STrond Myklebust 250228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2503e3a535e1STrond Myklebust args->pgbase, args->pglen); 2504d017931cSAndy Adamson encode_nops(&hdr); 25051da177e4SLinus Torvalds } 25061da177e4SLinus Torvalds 25071da177e4SLinus Torvalds /* 25081da177e4SLinus Torvalds * Encode a READDIR request 25091da177e4SLinus Torvalds */ 25109f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 2511fcc85819SChristoph Hellwig const void *data) 25121da177e4SLinus Torvalds { 2513fcc85819SChristoph Hellwig const struct nfs4_readdir_arg *args = data; 25141da177e4SLinus Torvalds struct compound_hdr hdr = { 251566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25161da177e4SLinus Torvalds }; 25171da177e4SLinus Torvalds 25189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25209f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25219f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2522d6ac02dfSTrond Myklebust 252328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2524d6ac02dfSTrond Myklebust args->pgbase, args->count); 2525d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 252628f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2527d6ac02dfSTrond Myklebust args->pgbase, args->count); 2528d017931cSAndy Adamson encode_nops(&hdr); 25291da177e4SLinus Torvalds } 25301da177e4SLinus Torvalds 25311da177e4SLinus Torvalds /* 25321da177e4SLinus Torvalds * Encode a READ request 25331da177e4SLinus Torvalds */ 25349f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 2535fcc85819SChristoph Hellwig const void *data) 25361da177e4SLinus Torvalds { 2537fcc85819SChristoph Hellwig const struct nfs_pgio_args *args = data; 25381da177e4SLinus Torvalds struct compound_hdr hdr = { 253966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25401da177e4SLinus Torvalds }; 25411da177e4SLinus Torvalds 25429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25459f06c719SChuck Lever encode_read(xdr, args, &hdr); 25461da177e4SLinus Torvalds 254728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 25481da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 25494f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2550d017931cSAndy Adamson encode_nops(&hdr); 25511da177e4SLinus Torvalds } 25521da177e4SLinus Torvalds 25531da177e4SLinus Torvalds /* 25541da177e4SLinus Torvalds * Encode an SETATTR request 25551da177e4SLinus Torvalds */ 25569f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 2557fcc85819SChristoph Hellwig const void *data) 25581da177e4SLinus Torvalds { 2559fcc85819SChristoph Hellwig const struct nfs_setattrargs *args = data; 25601da177e4SLinus Torvalds struct compound_hdr hdr = { 256166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25621da177e4SLinus Torvalds }; 25631da177e4SLinus Torvalds 25649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25669f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25679f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 25689f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2569d017931cSAndy Adamson encode_nops(&hdr); 25701da177e4SLinus Torvalds } 25711da177e4SLinus Torvalds 25721da177e4SLinus Torvalds /* 2573029d105eSJ. Bruce Fields * Encode a GETACL request 2574029d105eSJ. Bruce Fields */ 25759f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2576fcc85819SChristoph Hellwig const void *data) 2577029d105eSJ. Bruce Fields { 2578fcc85819SChristoph Hellwig const struct nfs_getaclargs *args = data; 2579029d105eSJ. Bruce Fields struct compound_hdr hdr = { 258066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2581029d105eSJ. Bruce Fields }; 258237c88763STrond Myklebust const __u32 nfs4_acl_bitmap[1] = { 258337c88763STrond Myklebust [0] = FATTR4_WORD0_ACL, 258437c88763STrond Myklebust }; 258528f56694SBenny Halevy uint32_t replen; 2586029d105eSJ. Bruce Fields 25879f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25889f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25899f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25906682c14bSJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz; 259137c88763STrond Myklebust encode_getattr(xdr, nfs4_acl_bitmap, NULL, 259237c88763STrond Myklebust ARRAY_SIZE(nfs4_acl_bitmap), &hdr); 2593cf8cdbe5SAndy Adamson 259428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 25958fbcf237SAndreas Gruenbacher args->acl_pages, 0, args->acl_len); 2596bf118a34SAndy Adamson 2597d017931cSAndy Adamson encode_nops(&hdr); 2598029d105eSJ. Bruce Fields } 2599029d105eSJ. Bruce Fields 2600029d105eSJ. Bruce Fields /* 26011da177e4SLinus Torvalds * Encode a WRITE request 26021da177e4SLinus Torvalds */ 26039f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 2604fcc85819SChristoph Hellwig const void *data) 26051da177e4SLinus Torvalds { 2606fcc85819SChristoph Hellwig const struct nfs_pgio_args *args = data; 26071da177e4SLinus Torvalds struct compound_hdr hdr = { 260866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26091da177e4SLinus Torvalds }; 26101da177e4SLinus Torvalds 26119f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26129f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26139f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26149f06c719SChuck Lever encode_write(xdr, args, &hdr); 26154f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 26167ffd1064SFred Isaman if (args->bitmask) 26179f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2618d017931cSAndy Adamson encode_nops(&hdr); 26191da177e4SLinus Torvalds } 26201da177e4SLinus Torvalds 26211da177e4SLinus Torvalds /* 26221da177e4SLinus Torvalds * a COMMIT request 26231da177e4SLinus Torvalds */ 26249f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 2625fcc85819SChristoph Hellwig const void *data) 26261da177e4SLinus Torvalds { 2627fcc85819SChristoph Hellwig const struct nfs_commitargs *args = data; 26281da177e4SLinus Torvalds struct compound_hdr hdr = { 262966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26301da177e4SLinus Torvalds }; 26311da177e4SLinus Torvalds 26329f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26339f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26349f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26359f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2636d017931cSAndy Adamson encode_nops(&hdr); 26371da177e4SLinus Torvalds } 26381da177e4SLinus Torvalds 26391da177e4SLinus Torvalds /* 26401da177e4SLinus Torvalds * FSINFO request 26411da177e4SLinus Torvalds */ 26429f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 2643fcc85819SChristoph Hellwig const void *data) 26441da177e4SLinus Torvalds { 2645fcc85819SChristoph Hellwig const struct nfs4_fsinfo_arg *args = data; 26461da177e4SLinus Torvalds struct compound_hdr hdr = { 264766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26481da177e4SLinus Torvalds }; 26491da177e4SLinus Torvalds 26509f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26519f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26529f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26539f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2654d017931cSAndy Adamson encode_nops(&hdr); 26551da177e4SLinus Torvalds } 26561da177e4SLinus Torvalds 26571da177e4SLinus Torvalds /* 26581da177e4SLinus Torvalds * a PATHCONF request 26591da177e4SLinus Torvalds */ 26609f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 2661fcc85819SChristoph Hellwig const void *data) 26621da177e4SLinus Torvalds { 2663fcc85819SChristoph Hellwig const struct nfs4_pathconf_arg *args = data; 26641da177e4SLinus Torvalds struct compound_hdr hdr = { 266566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26661da177e4SLinus Torvalds }; 26671da177e4SLinus Torvalds 26689f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26699f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26709f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 267137c88763STrond Myklebust encode_getattr(xdr, nfs4_pathconf_bitmap, args->bitmask, 267237c88763STrond Myklebust ARRAY_SIZE(nfs4_pathconf_bitmap), &hdr); 2673d017931cSAndy Adamson encode_nops(&hdr); 26741da177e4SLinus Torvalds } 26751da177e4SLinus Torvalds 26761da177e4SLinus Torvalds /* 26771da177e4SLinus Torvalds * a STATFS request 26781da177e4SLinus Torvalds */ 26799f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 2680fcc85819SChristoph Hellwig const void *data) 26811da177e4SLinus Torvalds { 2682fcc85819SChristoph Hellwig const struct nfs4_statfs_arg *args = data; 26831da177e4SLinus Torvalds struct compound_hdr hdr = { 268466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26851da177e4SLinus Torvalds }; 26861da177e4SLinus Torvalds 26879f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26889f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26899f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 269037c88763STrond Myklebust encode_getattr(xdr, nfs4_statfs_bitmap, args->bitmask, 269137c88763STrond Myklebust ARRAY_SIZE(nfs4_statfs_bitmap), &hdr); 2692d017931cSAndy Adamson encode_nops(&hdr); 26931da177e4SLinus Torvalds } 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds /* 26961da177e4SLinus Torvalds * GETATTR_BITMAP request 26971da177e4SLinus Torvalds */ 26989f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26999f06c719SChuck Lever struct xdr_stream *xdr, 2700fcc85819SChristoph Hellwig const void *data) 27011da177e4SLinus Torvalds { 2702fcc85819SChristoph Hellwig const struct nfs4_server_caps_arg *args = data; 27038c61282fSKinglong Mee const u32 *bitmask = args->bitmask; 27041da177e4SLinus Torvalds struct compound_hdr hdr = { 270566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27061da177e4SLinus Torvalds }; 27071da177e4SLinus Torvalds 27089f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27099f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27109f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 271137c88763STrond Myklebust encode_getattr(xdr, bitmask, NULL, 3, &hdr); 2712d017931cSAndy Adamson encode_nops(&hdr); 27131da177e4SLinus Torvalds } 27141da177e4SLinus Torvalds 27151da177e4SLinus Torvalds /* 27161da177e4SLinus Torvalds * a RENEW request 27171da177e4SLinus Torvalds */ 27189f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 2719fcc85819SChristoph Hellwig const void *data) 2720fcc85819SChristoph Hellwig 27211da177e4SLinus Torvalds { 2722fcc85819SChristoph Hellwig const struct nfs_client *clp = data; 27231da177e4SLinus Torvalds struct compound_hdr hdr = { 2724d017931cSAndy Adamson .nops = 0, 27251da177e4SLinus Torvalds }; 27261da177e4SLinus Torvalds 27279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2728bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2729d017931cSAndy Adamson encode_nops(&hdr); 27301da177e4SLinus Torvalds } 27311da177e4SLinus Torvalds 27321da177e4SLinus Torvalds /* 27331da177e4SLinus Torvalds * a SETCLIENTID request 27341da177e4SLinus Torvalds */ 27359f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 27369f06c719SChuck Lever struct xdr_stream *xdr, 2737fcc85819SChristoph Hellwig const void *data) 27381da177e4SLinus Torvalds { 2739fcc85819SChristoph Hellwig const struct nfs4_setclientid *sc = data; 27401da177e4SLinus Torvalds struct compound_hdr hdr = { 2741d017931cSAndy Adamson .nops = 0, 27421da177e4SLinus Torvalds }; 27431da177e4SLinus Torvalds 27449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27459f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2746d017931cSAndy Adamson encode_nops(&hdr); 27471da177e4SLinus Torvalds } 27481da177e4SLinus Torvalds 27491da177e4SLinus Torvalds /* 27501da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 27511da177e4SLinus Torvalds */ 27529f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 27539f06c719SChuck Lever struct xdr_stream *xdr, 2754fcc85819SChristoph Hellwig const void *data) 27551da177e4SLinus Torvalds { 2756fcc85819SChristoph Hellwig const struct nfs4_setclientid_res *arg = data; 27571da177e4SLinus Torvalds struct compound_hdr hdr = { 2758d017931cSAndy Adamson .nops = 0, 27591da177e4SLinus Torvalds }; 27601da177e4SLinus Torvalds 27619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27629f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 2763d017931cSAndy Adamson encode_nops(&hdr); 27641da177e4SLinus Torvalds } 27651da177e4SLinus Torvalds 27661da177e4SLinus Torvalds /* 27671da177e4SLinus Torvalds * DELEGRETURN request 27681da177e4SLinus Torvalds */ 27699f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 27709f06c719SChuck Lever struct xdr_stream *xdr, 2771fcc85819SChristoph Hellwig const void *data) 27721da177e4SLinus Torvalds { 2773fcc85819SChristoph Hellwig const struct nfs4_delegreturnargs *args = data; 27741da177e4SLinus Torvalds struct compound_hdr hdr = { 277566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27761da177e4SLinus Torvalds }; 27771da177e4SLinus Torvalds 27789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27799f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27809f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 2781586f1c39STrond Myklebust if (args->lr_args) 2782586f1c39STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 27838ac2b422STrond Myklebust if (args->bitmask) 27849f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2785e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2786d017931cSAndy Adamson encode_nops(&hdr); 27871da177e4SLinus Torvalds } 27881da177e4SLinus Torvalds 27891da177e4SLinus Torvalds /* 2790683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2791683b57b4STrond Myklebust */ 27929f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 27939f06c719SChuck Lever struct xdr_stream *xdr, 2794fcc85819SChristoph Hellwig const void *data) 2795683b57b4STrond Myklebust { 2796fcc85819SChristoph Hellwig const struct nfs4_fs_locations_arg *args = data; 2797683b57b4STrond Myklebust struct compound_hdr hdr = { 279866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2799683b57b4STrond Myklebust }; 280028f56694SBenny Halevy uint32_t replen; 2801683b57b4STrond Myklebust 28029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 2804b03d735bSChuck Lever if (args->migration) { 2805b03d735bSChuck Lever encode_putfh(xdr, args->fh, &hdr); 2806b03d735bSChuck Lever replen = hdr.replen; 2807b03d735bSChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2808b03d735bSChuck Lever if (args->renew) 2809b03d735bSChuck Lever encode_renew(xdr, args->clientid, &hdr); 2810b03d735bSChuck Lever } else { 28119f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 28129f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 2813b03d735bSChuck Lever replen = hdr.replen; 28149f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2815b03d735bSChuck Lever } 2816cf8cdbe5SAndy Adamson 2817b03d735bSChuck Lever /* Set up reply kvec to capture returned fs_locations array. */ 2818fcc85819SChristoph Hellwig xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2819fcc85819SChristoph Hellwig (struct page **)&args->page, 0, PAGE_SIZE); 2820d017931cSAndy Adamson encode_nops(&hdr); 2821683b57b4STrond Myklebust } 2822683b57b4STrond Myklebust 28235a5ea0d4SBryan Schumaker /* 28245a5ea0d4SBryan Schumaker * Encode SECINFO request 28255a5ea0d4SBryan Schumaker */ 28265a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 28275a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 2828fcc85819SChristoph Hellwig const void *data) 28295a5ea0d4SBryan Schumaker { 2830fcc85819SChristoph Hellwig const struct nfs4_secinfo_arg *args = data; 28315a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 28325a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 28335a5ea0d4SBryan Schumaker }; 28345a5ea0d4SBryan Schumaker 28355a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 28365a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 28375a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 28385a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 28395a5ea0d4SBryan Schumaker encode_nops(&hdr); 28405a5ea0d4SBryan Schumaker } 28415a5ea0d4SBryan Schumaker 284244c99933SChuck Lever /* 284344c99933SChuck Lever * Encode FSID_PRESENT request 284444c99933SChuck Lever */ 284544c99933SChuck Lever static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req, 284644c99933SChuck Lever struct xdr_stream *xdr, 2847fcc85819SChristoph Hellwig const void *data) 284844c99933SChuck Lever { 2849fcc85819SChristoph Hellwig const struct nfs4_fsid_present_arg *args = data; 285044c99933SChuck Lever struct compound_hdr hdr = { 285144c99933SChuck Lever .minorversion = nfs4_xdr_minorversion(&args->seq_args), 285244c99933SChuck Lever }; 285344c99933SChuck Lever 285444c99933SChuck Lever encode_compound_hdr(xdr, req, &hdr); 285544c99933SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 285644c99933SChuck Lever encode_putfh(xdr, args->fh, &hdr); 285744c99933SChuck Lever encode_getfh(xdr, &hdr); 285844c99933SChuck Lever if (args->renew) 285944c99933SChuck Lever encode_renew(xdr, args->clientid, &hdr); 286044c99933SChuck Lever encode_nops(&hdr); 286144c99933SChuck Lever } 286244c99933SChuck Lever 286399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 286499fe60d0SBenny Halevy /* 28657c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 28667c44f1aeSWeston Andros Adamson */ 28677c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 28687c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 2869fcc85819SChristoph Hellwig const void *data) 28707c44f1aeSWeston Andros Adamson { 2871fcc85819SChristoph Hellwig const struct nfs41_bind_conn_to_session_args *args = data; 28727c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 287371a097c6STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 28747c44f1aeSWeston Andros Adamson }; 28757c44f1aeSWeston Andros Adamson 28767c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 287771a097c6STrond Myklebust encode_bind_conn_to_session(xdr, args, &hdr); 28787c44f1aeSWeston Andros Adamson encode_nops(&hdr); 28797c44f1aeSWeston Andros Adamson } 28807c44f1aeSWeston Andros Adamson 28817c44f1aeSWeston Andros Adamson /* 288299fe60d0SBenny Halevy * EXCHANGE_ID request 288399fe60d0SBenny Halevy */ 28849f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 28859f06c719SChuck Lever struct xdr_stream *xdr, 2886fcc85819SChristoph Hellwig const void *data) 288799fe60d0SBenny Halevy { 2888fcc85819SChristoph Hellwig const struct nfs41_exchange_id_args *args = data; 288999fe60d0SBenny Halevy struct compound_hdr hdr = { 2890a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 289199fe60d0SBenny Halevy }; 289299fe60d0SBenny Halevy 28939f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28949f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 289599fe60d0SBenny Halevy encode_nops(&hdr); 289699fe60d0SBenny Halevy } 28972050f0ccSAndy Adamson 28982050f0ccSAndy Adamson /* 2899fc931582SAndy Adamson * a CREATE_SESSION request 2900fc931582SAndy Adamson */ 29019f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 29029f06c719SChuck Lever struct xdr_stream *xdr, 2903fcc85819SChristoph Hellwig const void *data) 2904fc931582SAndy Adamson { 2905fcc85819SChristoph Hellwig const struct nfs41_create_session_args *args = data; 2906fc931582SAndy Adamson struct compound_hdr hdr = { 2907a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2908fc931582SAndy Adamson }; 2909fc931582SAndy Adamson 29109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29119f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2912fc931582SAndy Adamson encode_nops(&hdr); 2913fc931582SAndy Adamson } 2914fc931582SAndy Adamson 2915fc931582SAndy Adamson /* 29160f3e66c6SAndy Adamson * a DESTROY_SESSION request 29170f3e66c6SAndy Adamson */ 29189f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 29199f06c719SChuck Lever struct xdr_stream *xdr, 2920fcc85819SChristoph Hellwig const void *data) 29210f3e66c6SAndy Adamson { 2922fcc85819SChristoph Hellwig const struct nfs4_session *session = data; 29230f3e66c6SAndy Adamson struct compound_hdr hdr = { 2924a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 29250f3e66c6SAndy Adamson }; 29260f3e66c6SAndy Adamson 29279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29289f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 29290f3e66c6SAndy Adamson encode_nops(&hdr); 29300f3e66c6SAndy Adamson } 29310f3e66c6SAndy Adamson 29320f3e66c6SAndy Adamson /* 293366245539STrond Myklebust * a DESTROY_CLIENTID request 293466245539STrond Myklebust */ 293566245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 293666245539STrond Myklebust struct xdr_stream *xdr, 2937fcc85819SChristoph Hellwig const void *data) 293866245539STrond Myklebust { 2939fcc85819SChristoph Hellwig const struct nfs_client *clp = data; 294066245539STrond Myklebust struct compound_hdr hdr = { 294166245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 294266245539STrond Myklebust }; 294366245539STrond Myklebust 294466245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 294566245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 294666245539STrond Myklebust encode_nops(&hdr); 294766245539STrond Myklebust } 294866245539STrond Myklebust 294966245539STrond Myklebust /* 2950fc01cea9SAndy Adamson * a SEQUENCE request 2951fc01cea9SAndy Adamson */ 29529f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2953fcc85819SChristoph Hellwig const void *data) 2954fc01cea9SAndy Adamson { 2955fcc85819SChristoph Hellwig const struct nfs4_sequence_args *args = data; 2956fc01cea9SAndy Adamson struct compound_hdr hdr = { 2957fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2958fc01cea9SAndy Adamson }; 2959fc01cea9SAndy Adamson 29609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29619f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2962fc01cea9SAndy Adamson encode_nops(&hdr); 2963fc01cea9SAndy Adamson } 2964fc01cea9SAndy Adamson 2965fc01cea9SAndy Adamson /* 29662050f0ccSAndy Adamson * a GET_LEASE_TIME request 29672050f0ccSAndy Adamson */ 29689f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 29699f06c719SChuck Lever struct xdr_stream *xdr, 2970fcc85819SChristoph Hellwig const void *data) 29712050f0ccSAndy Adamson { 2972fcc85819SChristoph Hellwig const struct nfs4_get_lease_time_args *args = data; 29732050f0ccSAndy Adamson struct compound_hdr hdr = { 29742050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 29752050f0ccSAndy Adamson }; 2976dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 29772050f0ccSAndy Adamson 29789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29799f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 29809f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 29819f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 29822050f0ccSAndy Adamson encode_nops(&hdr); 29832050f0ccSAndy Adamson } 298418019753SRicardo Labiaga 298518019753SRicardo Labiaga /* 298618019753SRicardo Labiaga * a RECLAIM_COMPLETE request 298718019753SRicardo Labiaga */ 29889f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 29899f06c719SChuck Lever struct xdr_stream *xdr, 2990fcc85819SChristoph Hellwig const void *data) 299118019753SRicardo Labiaga { 2992fcc85819SChristoph Hellwig const struct nfs41_reclaim_complete_args *args = data; 299318019753SRicardo Labiaga struct compound_hdr hdr = { 299418019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 299518019753SRicardo Labiaga }; 299618019753SRicardo Labiaga 29979f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29989f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29999f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 300018019753SRicardo Labiaga encode_nops(&hdr); 300118019753SRicardo Labiaga } 300218019753SRicardo Labiaga 3003b1f69b75SAndy Adamson /* 3004b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 3005b1f69b75SAndy Adamson */ 30069f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 30079f06c719SChuck Lever struct xdr_stream *xdr, 3008fcc85819SChristoph Hellwig const void *data) 3009b1f69b75SAndy Adamson { 3010fcc85819SChristoph Hellwig const struct nfs4_getdeviceinfo_args *args = data; 3011b1f69b75SAndy Adamson struct compound_hdr hdr = { 3012b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3013b1f69b75SAndy Adamson }; 3014b1f69b75SAndy Adamson 30159f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 30169f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 30179f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 3018b1f69b75SAndy Adamson 3019b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 3020b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 3021b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 3022b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 3023b1f69b75SAndy Adamson args->pdev->pglen); 3024b1f69b75SAndy Adamson 3025b1f69b75SAndy Adamson encode_nops(&hdr); 3026b1f69b75SAndy Adamson } 3027b1f69b75SAndy Adamson 3028b1f69b75SAndy Adamson /* 3029b1f69b75SAndy Adamson * Encode LAYOUTGET request 3030b1f69b75SAndy Adamson */ 30319f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 30329f06c719SChuck Lever struct xdr_stream *xdr, 3033fcc85819SChristoph Hellwig const void *data) 3034b1f69b75SAndy Adamson { 3035fcc85819SChristoph Hellwig const struct nfs4_layoutget_args *args = data; 3036b1f69b75SAndy Adamson struct compound_hdr hdr = { 3037b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3038b1f69b75SAndy Adamson }; 3039b1f69b75SAndy Adamson 30409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 30419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 30429f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 30439f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 304435124a09SWeston Andros Adamson 304535124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 304635124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 304735124a09SWeston Andros Adamson 3048b1f69b75SAndy Adamson encode_nops(&hdr); 3049b1f69b75SAndy Adamson } 3050863a3c6cSAndy Adamson 3051863a3c6cSAndy Adamson /* 3052863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 3053863a3c6cSAndy Adamson */ 3054cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 3055863a3c6cSAndy Adamson struct xdr_stream *xdr, 3056fcc85819SChristoph Hellwig const void *priv) 3057863a3c6cSAndy Adamson { 3058fcc85819SChristoph Hellwig const struct nfs4_layoutcommit_args *args = priv; 3059ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 3060ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 3061863a3c6cSAndy Adamson struct compound_hdr hdr = { 3062863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3063863a3c6cSAndy Adamson }; 3064863a3c6cSAndy Adamson 3065863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 3066863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 3067863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 3068ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 3069863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 3070863a3c6cSAndy Adamson encode_nops(&hdr); 3071cbe82603SBenny Halevy } 3072cbe82603SBenny Halevy 3073cbe82603SBenny Halevy /* 3074cbe82603SBenny Halevy * Encode LAYOUTRETURN request 3075cbe82603SBenny Halevy */ 3076cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 3077cbe82603SBenny Halevy struct xdr_stream *xdr, 3078fcc85819SChristoph Hellwig const void *data) 3079cbe82603SBenny Halevy { 3080fcc85819SChristoph Hellwig const struct nfs4_layoutreturn_args *args = data; 3081cbe82603SBenny Halevy struct compound_hdr hdr = { 3082cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3083cbe82603SBenny Halevy }; 3084cbe82603SBenny Halevy 3085cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 3086cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 3087cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 3088cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 3089cbe82603SBenny Halevy encode_nops(&hdr); 3090863a3c6cSAndy Adamson } 3091fca78d6dSBryan Schumaker 3092fca78d6dSBryan Schumaker /* 3093fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 3094fca78d6dSBryan Schumaker */ 3095fcc85819SChristoph Hellwig static void nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 3096fca78d6dSBryan Schumaker struct xdr_stream *xdr, 3097fcc85819SChristoph Hellwig const void *data) 3098fca78d6dSBryan Schumaker { 3099fcc85819SChristoph Hellwig const struct nfs41_secinfo_no_name_args *args = data; 3100fca78d6dSBryan Schumaker struct compound_hdr hdr = { 3101fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3102fca78d6dSBryan Schumaker }; 3103fca78d6dSBryan Schumaker 3104fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 3105fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 3106fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 3107fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 3108fca78d6dSBryan Schumaker encode_nops(&hdr); 3109fca78d6dSBryan Schumaker } 31107d974794SBryan Schumaker 31117d974794SBryan Schumaker /* 31127d974794SBryan Schumaker * Encode TEST_STATEID request 31137d974794SBryan Schumaker */ 31147d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 31157d974794SBryan Schumaker struct xdr_stream *xdr, 3116fcc85819SChristoph Hellwig const void *data) 31177d974794SBryan Schumaker { 3118fcc85819SChristoph Hellwig const struct nfs41_test_stateid_args *args = data; 31197d974794SBryan Schumaker struct compound_hdr hdr = { 31207d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 31217d974794SBryan Schumaker }; 31227d974794SBryan Schumaker 31237d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 31247d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 31257d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 31267d974794SBryan Schumaker encode_nops(&hdr); 31277d974794SBryan Schumaker } 31289aeda35fSBryan Schumaker 31299aeda35fSBryan Schumaker /* 31309aeda35fSBryan Schumaker * Encode FREE_STATEID request 31319aeda35fSBryan Schumaker */ 31329aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 31339aeda35fSBryan Schumaker struct xdr_stream *xdr, 3134fcc85819SChristoph Hellwig const void *data) 31359aeda35fSBryan Schumaker { 3136fcc85819SChristoph Hellwig const struct nfs41_free_stateid_args *args = data; 31379aeda35fSBryan Schumaker struct compound_hdr hdr = { 31389aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 31399aeda35fSBryan Schumaker }; 31409aeda35fSBryan Schumaker 31419aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 31429aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 31439aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 31449aeda35fSBryan Schumaker encode_nops(&hdr); 31459aeda35fSBryan Schumaker } 314699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 314799fe60d0SBenny Halevy 3148683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 31491da177e4SLinus Torvalds { 31506da59ce2STrond Myklebust ssize_t ret = xdr_stream_decode_opaque_inline(xdr, (void **)string, 31516da59ce2STrond Myklebust NFS4_OPAQUE_LIMIT); 3152eb72f484SChuck Lever if (unlikely(ret < 0)) 3153c0eae66eSBenny Halevy return -EIO; 31546da59ce2STrond Myklebust *len = ret; 31556da59ce2STrond Myklebust return 0; 31566da59ce2STrond Myklebust } 31571da177e4SLinus Torvalds 31581da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 31591da177e4SLinus Torvalds { 31608687b63aSAl Viro __be32 *p; 31611da177e4SLinus Torvalds 3162c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3163c0eae66eSBenny Halevy if (unlikely(!p)) 3164eb72f484SChuck Lever return -EIO; 31656f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3166cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 31671da177e4SLinus Torvalds 3168c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3169c0eae66eSBenny Halevy if (unlikely(!p)) 3170eb72f484SChuck Lever return -EIO; 31711da177e4SLinus Torvalds hdr->tag = (char *)p; 31721da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3173cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3174aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3175aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 31761da177e4SLinus Torvalds return 0; 31771da177e4SLinus Torvalds } 31781da177e4SLinus Torvalds 3179c7848f69STrond Myklebust static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected, 3180c7848f69STrond Myklebust int *nfs_retval) 31811da177e4SLinus Torvalds { 31828687b63aSAl Viro __be32 *p; 31831da177e4SLinus Torvalds uint32_t opnum; 31841da177e4SLinus Torvalds int32_t nfserr; 31851da177e4SLinus Torvalds 3186c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3187c0eae66eSBenny Halevy if (unlikely(!p)) 3188c0eae66eSBenny Halevy goto out_overflow; 31896f723f77SBenny Halevy opnum = be32_to_cpup(p++); 3190c7848f69STrond Myklebust if (unlikely(opnum != expected)) 3191c7848f69STrond Myklebust goto out_bad_operation; 3192f23f6584SChuck Lever if (unlikely(*p != cpu_to_be32(NFS_OK))) 3193f23f6584SChuck Lever goto out_status; 3194c7848f69STrond Myklebust *nfs_retval = 0; 3195f23f6584SChuck Lever return true; 3196f23f6584SChuck Lever out_status: 3197f23f6584SChuck Lever nfserr = be32_to_cpup(p); 3198f23f6584SChuck Lever trace_nfs4_xdr_status(opnum, nfserr); 3199c7848f69STrond Myklebust *nfs_retval = nfs4_stat_to_errno(nfserr); 3200c7848f69STrond Myklebust return true; 3201c7848f69STrond Myklebust out_bad_operation: 3202fe82a183SChuck Lever dprintk("nfs: Server returned operation" 32031da177e4SLinus Torvalds " %d but we issued a request for %d\n", 32041da177e4SLinus Torvalds opnum, expected); 3205c7848f69STrond Myklebust *nfs_retval = -EREMOTEIO; 3206c7848f69STrond Myklebust return false; 3207c0eae66eSBenny Halevy out_overflow: 3208c7848f69STrond Myklebust *nfs_retval = -EIO; 3209c7848f69STrond Myklebust return false; 3210c7848f69STrond Myklebust } 3211c7848f69STrond Myklebust 3212c7848f69STrond Myklebust static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 3213c7848f69STrond Myklebust { 3214c7848f69STrond Myklebust int retval; 3215c7848f69STrond Myklebust 3216c7848f69STrond Myklebust __decode_op_hdr(xdr, expected, &retval); 3217c7848f69STrond Myklebust return retval; 32181da177e4SLinus Torvalds } 32191da177e4SLinus Torvalds 32201da177e4SLinus Torvalds /* Dummy routine */ 32211bbe60ffSTrond Myklebust static int decode_ace(struct xdr_stream *xdr, void *ace) 32221da177e4SLinus Torvalds { 32238687b63aSAl Viro __be32 *p; 3224683b57b4STrond Myklebust unsigned int strlen; 32251da177e4SLinus Torvalds char *str; 32261da177e4SLinus Torvalds 3227c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3228eb72f484SChuck Lever if (unlikely(!p)) 3229c0eae66eSBenny Halevy return -EIO; 3230eb72f484SChuck Lever return decode_opaque_inline(xdr, &strlen, &str); 32311da177e4SLinus Torvalds } 32321da177e4SLinus Torvalds 323337c88763STrond Myklebust static ssize_t 323437c88763STrond Myklebust decode_bitmap4(struct xdr_stream *xdr, uint32_t *bitmap, size_t sz) 32351da177e4SLinus Torvalds { 323637c88763STrond Myklebust ssize_t ret; 32371da177e4SLinus Torvalds 323837c88763STrond Myklebust ret = xdr_stream_decode_uint32_array(xdr, bitmap, sz); 323937c88763STrond Myklebust if (likely(ret >= 0)) 324037c88763STrond Myklebust return ret; 3241eb72f484SChuck Lever if (ret != -EMSGSIZE) 3242c0eae66eSBenny Halevy return -EIO; 3243eb72f484SChuck Lever return sz; 32441da177e4SLinus Torvalds } 32451da177e4SLinus Torvalds 324637c88763STrond Myklebust static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 324737c88763STrond Myklebust { 324837c88763STrond Myklebust ssize_t ret; 324937c88763STrond Myklebust ret = decode_bitmap4(xdr, bitmap, 3); 325037c88763STrond Myklebust return ret < 0 ? ret : 0; 325137c88763STrond Myklebust } 325237c88763STrond Myklebust 3253256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 32541da177e4SLinus Torvalds { 32558687b63aSAl Viro __be32 *p; 32561da177e4SLinus Torvalds 3257c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3258c0eae66eSBenny Halevy if (unlikely(!p)) 3259eb72f484SChuck Lever return -EIO; 3260cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3261256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 32621da177e4SLinus Torvalds return 0; 32631da177e4SLinus Torvalds } 32641da177e4SLinus Torvalds 32651da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 32661da177e4SLinus Torvalds { 32671da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 32683388bff5SRoman Borisov int ret; 32693388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 32703388bff5SRoman Borisov if (unlikely(ret < 0)) 32713388bff5SRoman Borisov return ret; 32721da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 32731da177e4SLinus Torvalds } else 3274dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3275dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3276dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 32771da177e4SLinus Torvalds return 0; 32781da177e4SLinus Torvalds } 32791da177e4SLinus Torvalds 32801da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 32811da177e4SLinus Torvalds { 32828687b63aSAl Viro __be32 *p; 3283409924e4STrond Myklebust int ret = 0; 32841da177e4SLinus Torvalds 32851da177e4SLinus Torvalds *type = 0; 32861da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 32871da177e4SLinus Torvalds return -EIO; 32881da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3289c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3290c0eae66eSBenny Halevy if (unlikely(!p)) 3291eb72f484SChuck Lever return -EIO; 3292cccddf4fSBenny Halevy *type = be32_to_cpup(p); 32931da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 32943110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 32951da177e4SLinus Torvalds return -EIO; 32961da177e4SLinus Torvalds } 32971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3298409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32991da177e4SLinus Torvalds } 3300bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3301409924e4STrond Myklebust return ret; 33021da177e4SLinus Torvalds } 33031da177e4SLinus Torvalds 3304264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3305264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3306264e6351SChuck Lever { 3307264e6351SChuck Lever __be32 *p; 3308264e6351SChuck Lever 3309264e6351SChuck Lever *type = 0; 3310264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3311264e6351SChuck Lever return -EIO; 3312264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3313264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3314264e6351SChuck Lever if (unlikely(!p)) 3315eb72f484SChuck Lever return -EIO; 3316264e6351SChuck Lever *type = be32_to_cpup(p); 3317264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3318264e6351SChuck Lever } 3319264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3320264e6351SChuck Lever return 0; 3321264e6351SChuck Lever } 3322264e6351SChuck Lever 33231da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 33241da177e4SLinus Torvalds { 33258687b63aSAl Viro __be32 *p; 3326409924e4STrond Myklebust int ret = 0; 33271da177e4SLinus Torvalds 33281da177e4SLinus Torvalds *change = 0; 33291da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 33301da177e4SLinus Torvalds return -EIO; 33311da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3332c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3333c0eae66eSBenny Halevy if (unlikely(!p)) 3334eb72f484SChuck Lever return -EIO; 3335cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 33361da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3337409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 33381da177e4SLinus Torvalds } 33393110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 33401da177e4SLinus Torvalds (unsigned long long)*change); 3341409924e4STrond Myklebust return ret; 33421da177e4SLinus Torvalds } 33431da177e4SLinus Torvalds 33441da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 33451da177e4SLinus Torvalds { 33468687b63aSAl Viro __be32 *p; 3347409924e4STrond Myklebust int ret = 0; 33481da177e4SLinus Torvalds 33491da177e4SLinus Torvalds *size = 0; 33501da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 33511da177e4SLinus Torvalds return -EIO; 33521da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3353c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3354c0eae66eSBenny Halevy if (unlikely(!p)) 3355eb72f484SChuck Lever return -EIO; 3356cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 33571da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3358409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 33591da177e4SLinus Torvalds } 33603110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3361409924e4STrond Myklebust return ret; 33621da177e4SLinus Torvalds } 33631da177e4SLinus Torvalds 33641da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33651da177e4SLinus Torvalds { 33668687b63aSAl Viro __be32 *p; 33671da177e4SLinus Torvalds 33681da177e4SLinus Torvalds *res = 0; 33691da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 33701da177e4SLinus Torvalds return -EIO; 33711da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3372c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3373c0eae66eSBenny Halevy if (unlikely(!p)) 3374eb72f484SChuck Lever return -EIO; 3375cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33761da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 33771da177e4SLinus Torvalds } 33783110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 33791da177e4SLinus Torvalds return 0; 33801da177e4SLinus Torvalds } 33811da177e4SLinus Torvalds 33821da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33831da177e4SLinus Torvalds { 33848687b63aSAl Viro __be32 *p; 33851da177e4SLinus Torvalds 33861da177e4SLinus Torvalds *res = 0; 33871da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 33881da177e4SLinus Torvalds return -EIO; 33891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3390c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3391c0eae66eSBenny Halevy if (unlikely(!p)) 3392eb72f484SChuck Lever return -EIO; 3393cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33941da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33951da177e4SLinus Torvalds } 33963110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33971da177e4SLinus Torvalds return 0; 33981da177e4SLinus Torvalds } 33991da177e4SLinus Torvalds 34008b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 34011da177e4SLinus Torvalds { 34028687b63aSAl Viro __be32 *p; 3403409924e4STrond Myklebust int ret = 0; 34041da177e4SLinus Torvalds 34051da177e4SLinus Torvalds fsid->major = 0; 34061da177e4SLinus Torvalds fsid->minor = 0; 34071da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 34081da177e4SLinus Torvalds return -EIO; 34091da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3410c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3411c0eae66eSBenny Halevy if (unlikely(!p)) 3412eb72f484SChuck Lever return -EIO; 34133ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3414cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 34151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3416409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 34171da177e4SLinus Torvalds } 34183110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 34191da177e4SLinus Torvalds (unsigned long long)fsid->major, 34201da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3421409924e4STrond Myklebust return ret; 34221da177e4SLinus Torvalds } 34231da177e4SLinus Torvalds 34241da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34251da177e4SLinus Torvalds { 34268687b63aSAl Viro __be32 *p; 34271da177e4SLinus Torvalds 34281da177e4SLinus Torvalds *res = 60; 34291da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 34301da177e4SLinus Torvalds return -EIO; 34311da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3432c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3433c0eae66eSBenny Halevy if (unlikely(!p)) 3434eb72f484SChuck Lever return -EIO; 3435cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34361da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 34371da177e4SLinus Torvalds } 34383110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 34391da177e4SLinus Torvalds return 0; 34401da177e4SLinus Torvalds } 34411da177e4SLinus Torvalds 3442ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3443ae42c70aSBryan Schumaker { 3444ae42c70aSBryan Schumaker __be32 *p; 3445ae42c70aSBryan Schumaker 3446ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3447ae42c70aSBryan Schumaker return -EIO; 3448ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3449ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3450ae42c70aSBryan Schumaker if (unlikely(!p)) 3451eb72f484SChuck Lever return -EIO; 3452ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3453ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3454ae42c70aSBryan Schumaker } 3455ae42c70aSBryan Schumaker return 0; 3456ae42c70aSBryan Schumaker } 3457ae42c70aSBryan Schumaker 34588c61282fSKinglong Mee static int decode_attr_exclcreat_supported(struct xdr_stream *xdr, 34598c61282fSKinglong Mee uint32_t *bitmap, uint32_t *bitmask) 34608c61282fSKinglong Mee { 34618c61282fSKinglong Mee if (likely(bitmap[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT)) { 34628c61282fSKinglong Mee int ret; 34638c61282fSKinglong Mee ret = decode_attr_bitmap(xdr, bitmask); 34648c61282fSKinglong Mee if (unlikely(ret < 0)) 34658c61282fSKinglong Mee return ret; 34668c61282fSKinglong Mee bitmap[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT; 34678c61282fSKinglong Mee } else 34688c61282fSKinglong Mee bitmask[0] = bitmask[1] = bitmask[2] = 0; 34698c61282fSKinglong Mee dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 34708c61282fSKinglong Mee bitmask[0], bitmask[1], bitmask[2]); 34718c61282fSKinglong Mee return 0; 34728c61282fSKinglong Mee } 34738c61282fSKinglong Mee 3474ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3475ae42c70aSBryan Schumaker { 3476ae42c70aSBryan Schumaker __be32 *p; 347786bbd742SFrank Sorenson u32 len; 3478ae42c70aSBryan Schumaker 34797ad07353STrond Myklebust if (fh != NULL) 3480ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3481ae42c70aSBryan Schumaker 3482ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3483ae42c70aSBryan Schumaker return -EIO; 3484ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3485ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3486ae42c70aSBryan Schumaker if (unlikely(!p)) 3487eb72f484SChuck Lever return -EIO; 3488ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3489ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3490ae42c70aSBryan Schumaker return -EIO; 3491ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3492ae42c70aSBryan Schumaker if (unlikely(!p)) 3493eb72f484SChuck Lever return -EIO; 34947ad07353STrond Myklebust if (fh != NULL) { 3495ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 34967ad07353STrond Myklebust fh->size = len; 34977ad07353STrond Myklebust } 3498ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3499ae42c70aSBryan Schumaker } 3500ae42c70aSBryan Schumaker return 0; 3501ae42c70aSBryan Schumaker } 3502ae42c70aSBryan Schumaker 35031da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 35041da177e4SLinus Torvalds { 35058687b63aSAl Viro __be32 *p; 35061da177e4SLinus Torvalds 3507a1800acaSMalahal Naineni *res = 0; 35081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 35091da177e4SLinus Torvalds return -EIO; 35101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3511c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3512c0eae66eSBenny Halevy if (unlikely(!p)) 3513eb72f484SChuck Lever return -EIO; 3514cccddf4fSBenny Halevy *res = be32_to_cpup(p); 35151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 35161da177e4SLinus Torvalds } 35173110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 35181da177e4SLinus Torvalds return 0; 35191da177e4SLinus Torvalds } 35201da177e4SLinus Torvalds 35211da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 35221da177e4SLinus Torvalds { 35238687b63aSAl Viro __be32 *p; 3524409924e4STrond Myklebust int ret = 0; 35251da177e4SLinus Torvalds 35261da177e4SLinus Torvalds *fileid = 0; 35271da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 35281da177e4SLinus Torvalds return -EIO; 35291da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3530c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3531c0eae66eSBenny Halevy if (unlikely(!p)) 3532eb72f484SChuck Lever return -EIO; 3533cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 35341da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3535409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 35361da177e4SLinus Torvalds } 35373110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3538409924e4STrond Myklebust return ret; 35391da177e4SLinus Torvalds } 35401da177e4SLinus Torvalds 354199baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 354299baf625SManoj Naik { 35438687b63aSAl Viro __be32 *p; 3544409924e4STrond Myklebust int ret = 0; 354599baf625SManoj Naik 354699baf625SManoj Naik *fileid = 0; 354799baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 354899baf625SManoj Naik return -EIO; 354999baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3550c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3551c0eae66eSBenny Halevy if (unlikely(!p)) 3552eb72f484SChuck Lever return -EIO; 3553cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 355499baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 355528331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 355699baf625SManoj Naik } 35573110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3558409924e4STrond Myklebust return ret; 355999baf625SManoj Naik } 356099baf625SManoj Naik 35611da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35621da177e4SLinus Torvalds { 35638687b63aSAl Viro __be32 *p; 35641da177e4SLinus Torvalds int status = 0; 35651da177e4SLinus Torvalds 35661da177e4SLinus Torvalds *res = 0; 35671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 35681da177e4SLinus Torvalds return -EIO; 35691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3570c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3571c0eae66eSBenny Halevy if (unlikely(!p)) 3572eb72f484SChuck Lever return -EIO; 3573cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35741da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 35751da177e4SLinus Torvalds } 35763110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 35771da177e4SLinus Torvalds return status; 35781da177e4SLinus Torvalds } 35791da177e4SLinus Torvalds 35801da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35811da177e4SLinus Torvalds { 35828687b63aSAl Viro __be32 *p; 35831da177e4SLinus Torvalds int status = 0; 35841da177e4SLinus Torvalds 35851da177e4SLinus Torvalds *res = 0; 35861da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35871da177e4SLinus Torvalds return -EIO; 35881da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3589c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3590c0eae66eSBenny Halevy if (unlikely(!p)) 3591eb72f484SChuck Lever return -EIO; 3592cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35931da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35941da177e4SLinus Torvalds } 35953110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35961da177e4SLinus Torvalds return status; 35971da177e4SLinus Torvalds } 35981da177e4SLinus Torvalds 35991da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36001da177e4SLinus Torvalds { 36018687b63aSAl Viro __be32 *p; 36021da177e4SLinus Torvalds int status = 0; 36031da177e4SLinus Torvalds 36041da177e4SLinus Torvalds *res = 0; 36051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 36061da177e4SLinus Torvalds return -EIO; 36071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3608c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3609c0eae66eSBenny Halevy if (unlikely(!p)) 3610eb72f484SChuck Lever return -EIO; 3611cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 36131da177e4SLinus Torvalds } 36143110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 36151da177e4SLinus Torvalds return status; 36161da177e4SLinus Torvalds } 36171da177e4SLinus Torvalds 36187aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 36197aaa0b3bSManoj Naik { 3620464ad6b1SChuck Lever u32 n; 36218687b63aSAl Viro __be32 *p; 36227aaa0b3bSManoj Naik int status = 0; 36237aaa0b3bSManoj Naik 3624c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3625c0eae66eSBenny Halevy if (unlikely(!p)) 3626eb72f484SChuck Lever return -EIO; 3627cccddf4fSBenny Halevy n = be32_to_cpup(p); 362833a43f28SAndy Adamson if (n == 0) 362933a43f28SAndy Adamson goto root_path; 363002a2976cSChuck Lever dprintk("pathname4: "); 3631809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3632809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3633809b426cSTrond Myklebust goto out_eio; 3634809b426cSTrond Myklebust } 3635809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 36367aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 36377aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 36387aaa0b3bSManoj Naik if (unlikely(status != 0)) 36397aaa0b3bSManoj Naik goto out_eio; 364095a13f7bSTrond Myklebust ifdebug (XDR) 364102a2976cSChuck Lever pr_cont("%s%.*s ", 364202a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 364302a2976cSChuck Lever component->len, component->data); 36447aaa0b3bSManoj Naik } 36457aaa0b3bSManoj Naik out: 36467aaa0b3bSManoj Naik return status; 364733a43f28SAndy Adamson root_path: 364833a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 364933a43f28SAndy Adamson path->ncomponents = 1; 365033a43f28SAndy Adamson path->components[0].len=0; 365133a43f28SAndy Adamson path->components[0].data=NULL; 365202a2976cSChuck Lever dprintk("pathname4: /\n"); 365333a43f28SAndy Adamson goto out; 36547aaa0b3bSManoj Naik out_eio: 36557aaa0b3bSManoj Naik dprintk(" status %d", status); 36567aaa0b3bSManoj Naik status = -EIO; 36577aaa0b3bSManoj Naik goto out; 36587aaa0b3bSManoj Naik } 36597aaa0b3bSManoj Naik 36607aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3661683b57b4STrond Myklebust { 3662683b57b4STrond Myklebust int n; 36638687b63aSAl Viro __be32 *p; 3664683b57b4STrond Myklebust int status = -EIO; 3665683b57b4STrond Myklebust 3666683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3667683b57b4STrond Myklebust goto out; 3668683b57b4STrond Myklebust status = 0; 3669683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3670683b57b4STrond Myklebust goto out; 3671f54423a1SKinglong Mee bitmap[0] &= ~FATTR4_WORD0_FS_LOCATIONS; 36728b7e3f49STrond Myklebust status = -EIO; 36738b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36748b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36758b7e3f49STrond Myklebust goto out; 367602a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 36777aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3678683b57b4STrond Myklebust if (unlikely(status != 0)) 3679683b57b4STrond Myklebust goto out; 3680c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3681c0eae66eSBenny Halevy if (unlikely(!p)) 3682eb72f484SChuck Lever goto out_eio; 3683cccddf4fSBenny Halevy n = be32_to_cpup(p); 3684683b57b4STrond Myklebust if (n <= 0) 3685683b57b4STrond Myklebust goto out_eio; 3686809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3687464ad6b1SChuck Lever u32 m; 3688809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3689683b57b4STrond Myklebust 3690809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3691809b426cSTrond Myklebust break; 3692809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3693c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3694c0eae66eSBenny Halevy if (unlikely(!p)) 3695eb72f484SChuck Lever goto out_eio; 3696cccddf4fSBenny Halevy m = be32_to_cpup(p); 36977aaa0b3bSManoj Naik 369802a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3699809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3700809b426cSTrond Myklebust struct nfs4_string *server; 3701809b426cSTrond Myklebust 3702809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3703464ad6b1SChuck Lever unsigned int i; 3704464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3705464ad6b1SChuck Lever "returned for location %u\n", 37063110ff80SHarvey Harrison __func__, 3707464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3708464ad6b1SChuck Lever m, res->nlocations); 37097aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 37102e42c3e2STrond Myklebust unsigned int len; 37117aaa0b3bSManoj Naik char *data; 37127aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3713683b57b4STrond Myklebust if (unlikely(status != 0)) 3714683b57b4STrond Myklebust goto out_eio; 37157aaa0b3bSManoj Naik } 3716809b426cSTrond Myklebust break; 37177aaa0b3bSManoj Naik } 3718809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3719809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3720809b426cSTrond Myklebust if (unlikely(status != 0)) 3721809b426cSTrond Myklebust goto out_eio; 3722809b426cSTrond Myklebust dprintk("%s ", server->data); 37237aaa0b3bSManoj Naik } 37247aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 37257aaa0b3bSManoj Naik if (unlikely(status != 0)) 37267aaa0b3bSManoj Naik goto out_eio; 3727683b57b4STrond Myklebust } 3728409924e4STrond Myklebust if (res->nlocations != 0) 372981934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3730683b57b4STrond Myklebust out: 37313110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3732683b57b4STrond Myklebust return status; 3733683b57b4STrond Myklebust out_eio: 3734683b57b4STrond Myklebust status = -EIO; 3735683b57b4STrond Myklebust goto out; 3736683b57b4STrond Myklebust } 3737683b57b4STrond Myklebust 37381da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 37391da177e4SLinus Torvalds { 37408687b63aSAl Viro __be32 *p; 37411da177e4SLinus Torvalds int status = 0; 37421da177e4SLinus Torvalds 37431da177e4SLinus Torvalds *res = 0; 37441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 37451da177e4SLinus Torvalds return -EIO; 37461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3747c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3748c0eae66eSBenny Halevy if (unlikely(!p)) 3749eb72f484SChuck Lever return -EIO; 3750cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 37511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 37521da177e4SLinus Torvalds } 37533110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 37541da177e4SLinus Torvalds return status; 37551da177e4SLinus Torvalds } 37561da177e4SLinus Torvalds 37571da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 37581da177e4SLinus Torvalds { 37598687b63aSAl Viro __be32 *p; 37601da177e4SLinus Torvalds int status = 0; 37611da177e4SLinus Torvalds 37621da177e4SLinus Torvalds *maxlink = 1; 37631da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 37641da177e4SLinus Torvalds return -EIO; 37651da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3766c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3767c0eae66eSBenny Halevy if (unlikely(!p)) 3768eb72f484SChuck Lever return -EIO; 3769cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37711da177e4SLinus Torvalds } 37723110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37731da177e4SLinus Torvalds return status; 37741da177e4SLinus Torvalds } 37751da177e4SLinus Torvalds 37761da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37771da177e4SLinus Torvalds { 37788687b63aSAl Viro __be32 *p; 37791da177e4SLinus Torvalds int status = 0; 37801da177e4SLinus Torvalds 37811da177e4SLinus Torvalds *maxname = 1024; 37821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37831da177e4SLinus Torvalds return -EIO; 37841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3785c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3786c0eae66eSBenny Halevy if (unlikely(!p)) 3787eb72f484SChuck Lever return -EIO; 3788cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37901da177e4SLinus Torvalds } 37913110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 37921da177e4SLinus Torvalds return status; 37931da177e4SLinus Torvalds } 37941da177e4SLinus Torvalds 37951da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37961da177e4SLinus Torvalds { 37978687b63aSAl Viro __be32 *p; 37981da177e4SLinus Torvalds int status = 0; 37991da177e4SLinus Torvalds 38001da177e4SLinus Torvalds *res = 1024; 38011da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 38021da177e4SLinus Torvalds return -EIO; 38031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 38041da177e4SLinus Torvalds uint64_t maxread; 3805c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3806c0eae66eSBenny Halevy if (unlikely(!p)) 3807eb72f484SChuck Lever return -EIO; 3808cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 38091da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 38101da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 38111da177e4SLinus Torvalds *res = (uint32_t)maxread; 38121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 38131da177e4SLinus Torvalds } 38143110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 38151da177e4SLinus Torvalds return status; 38161da177e4SLinus Torvalds } 38171da177e4SLinus Torvalds 38181da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 38191da177e4SLinus Torvalds { 38208687b63aSAl Viro __be32 *p; 38211da177e4SLinus Torvalds int status = 0; 38221da177e4SLinus Torvalds 38231da177e4SLinus Torvalds *res = 1024; 38241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 38251da177e4SLinus Torvalds return -EIO; 38261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 38271da177e4SLinus Torvalds uint64_t maxwrite; 3828c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3829c0eae66eSBenny Halevy if (unlikely(!p)) 3830eb72f484SChuck Lever return -EIO; 3831cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 38321da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 38331da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 38341da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 38351da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 38361da177e4SLinus Torvalds } 38373110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 38381da177e4SLinus Torvalds return status; 38391da177e4SLinus Torvalds } 38401da177e4SLinus Torvalds 3841bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 38421da177e4SLinus Torvalds { 3843bca79478STrond Myklebust uint32_t tmp; 38448687b63aSAl Viro __be32 *p; 3845409924e4STrond Myklebust int ret = 0; 38461da177e4SLinus Torvalds 38471da177e4SLinus Torvalds *mode = 0; 38481da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38491da177e4SLinus Torvalds return -EIO; 38501da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3851c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3852c0eae66eSBenny Halevy if (unlikely(!p)) 3853eb72f484SChuck Lever return -EIO; 3854cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3855bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38561da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3857409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38581da177e4SLinus Torvalds } 38593110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3860409924e4STrond Myklebust return ret; 38611da177e4SLinus Torvalds } 38621da177e4SLinus Torvalds 38631da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38641da177e4SLinus Torvalds { 38658687b63aSAl Viro __be32 *p; 3866409924e4STrond Myklebust int ret = 0; 38671da177e4SLinus Torvalds 38681da177e4SLinus Torvalds *nlink = 1; 38691da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38701da177e4SLinus Torvalds return -EIO; 38711da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3872c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3873c0eae66eSBenny Halevy if (unlikely(!p)) 3874eb72f484SChuck Lever return -EIO; 3875cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38761da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3877409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38781da177e4SLinus Torvalds } 38793110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3880409924e4STrond Myklebust return ret; 38811da177e4SLinus Torvalds } 38821da177e4SLinus Torvalds 3883686a816aSTrond Myklebust static ssize_t decode_nfs4_string(struct xdr_stream *xdr, 3884686a816aSTrond Myklebust struct nfs4_string *name, gfp_t gfp_flags) 3885686a816aSTrond Myklebust { 3886686a816aSTrond Myklebust ssize_t ret; 3887686a816aSTrond Myklebust 3888686a816aSTrond Myklebust ret = xdr_stream_decode_string_dup(xdr, &name->data, 3889686a816aSTrond Myklebust XDR_MAX_NETOBJ, gfp_flags); 3890686a816aSTrond Myklebust name->len = 0; 3891686a816aSTrond Myklebust if (ret > 0) 3892686a816aSTrond Myklebust name->len = ret; 3893686a816aSTrond Myklebust return ret; 3894686a816aSTrond Myklebust } 3895686a816aSTrond Myklebust 389680e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3897e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 38986926afd1STrond Myklebust struct nfs4_string *owner_name) 38991da177e4SLinus Torvalds { 3900686a816aSTrond Myklebust ssize_t len; 3901686a816aSTrond Myklebust char *p; 39021da177e4SLinus Torvalds 3903e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 39041da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 39051da177e4SLinus Torvalds return -EIO; 3906686a816aSTrond Myklebust if (!(bitmap[1] & FATTR4_WORD1_OWNER)) 3907686a816aSTrond Myklebust return 0; 39081da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 3909686a816aSTrond Myklebust 3910686a816aSTrond Myklebust if (owner_name != NULL) { 3911e8d8aa46STrond Myklebust len = decode_nfs4_string(xdr, owner_name, GFP_NOIO); 3912686a816aSTrond Myklebust if (len <= 0) 3913686a816aSTrond Myklebust goto out; 3914686a816aSTrond Myklebust dprintk("%s: name=%s\n", __func__, owner_name->data); 3915686a816aSTrond Myklebust return NFS_ATTR_FATTR_OWNER_NAME; 3916686a816aSTrond Myklebust } else { 3917686a816aSTrond Myklebust len = xdr_stream_decode_opaque_inline(xdr, (void **)&p, 3918686a816aSTrond Myklebust XDR_MAX_NETOBJ); 3919686a816aSTrond Myklebust if (len <= 0 || nfs_map_name_to_uid(server, p, len, uid) != 0) 3920686a816aSTrond Myklebust goto out; 3921e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3922686a816aSTrond Myklebust return NFS_ATTR_FATTR_OWNER; 3923686a816aSTrond Myklebust } 3924686a816aSTrond Myklebust out: 3925eb72f484SChuck Lever if (len == -EBADMSG) 3926c0eae66eSBenny Halevy return -EIO; 3927eb72f484SChuck Lever return 0; 39281da177e4SLinus Torvalds } 39291da177e4SLinus Torvalds 393080e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3931e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 39326926afd1STrond Myklebust struct nfs4_string *group_name) 39331da177e4SLinus Torvalds { 3934686a816aSTrond Myklebust ssize_t len; 3935686a816aSTrond Myklebust char *p; 39361da177e4SLinus Torvalds 3937e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 39381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 39391da177e4SLinus Torvalds return -EIO; 3940686a816aSTrond Myklebust if (!(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) 3941686a816aSTrond Myklebust return 0; 39421da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 3943686a816aSTrond Myklebust 3944686a816aSTrond Myklebust if (group_name != NULL) { 3945e8d8aa46STrond Myklebust len = decode_nfs4_string(xdr, group_name, GFP_NOIO); 3946686a816aSTrond Myklebust if (len <= 0) 3947686a816aSTrond Myklebust goto out; 3948686a816aSTrond Myklebust dprintk("%s: name=%s\n", __func__, group_name->data); 39496f1f6220SKinglong Mee return NFS_ATTR_FATTR_GROUP_NAME; 3950686a816aSTrond Myklebust } else { 3951686a816aSTrond Myklebust len = xdr_stream_decode_opaque_inline(xdr, (void **)&p, 3952686a816aSTrond Myklebust XDR_MAX_NETOBJ); 3953686a816aSTrond Myklebust if (len <= 0 || nfs_map_group_to_gid(server, p, len, gid) != 0) 3954686a816aSTrond Myklebust goto out; 3955e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3956686a816aSTrond Myklebust return NFS_ATTR_FATTR_GROUP; 3957686a816aSTrond Myklebust } 3958686a816aSTrond Myklebust out: 3959eb72f484SChuck Lever if (len == -EBADMSG) 3960c0eae66eSBenny Halevy return -EIO; 3961eb72f484SChuck Lever return 0; 39621da177e4SLinus Torvalds } 39631da177e4SLinus Torvalds 39641da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39651da177e4SLinus Torvalds { 39668687b63aSAl Viro uint32_t major = 0, minor = 0; 39678687b63aSAl Viro __be32 *p; 3968409924e4STrond Myklebust int ret = 0; 39691da177e4SLinus Torvalds 39701da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39711da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39721da177e4SLinus Torvalds return -EIO; 39731da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39741da177e4SLinus Torvalds dev_t tmp; 39751da177e4SLinus Torvalds 3976c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3977c0eae66eSBenny Halevy if (unlikely(!p)) 3978eb72f484SChuck Lever return -EIO; 39796f723f77SBenny Halevy major = be32_to_cpup(p++); 3980cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39811da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39821da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39831da177e4SLinus Torvalds *rdev = tmp; 39841da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3985409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39861da177e4SLinus Torvalds } 39873110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3988409924e4STrond Myklebust return ret; 39891da177e4SLinus Torvalds } 39901da177e4SLinus Torvalds 39911da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39921da177e4SLinus Torvalds { 39938687b63aSAl Viro __be32 *p; 39941da177e4SLinus Torvalds int status = 0; 39951da177e4SLinus Torvalds 39961da177e4SLinus Torvalds *res = 0; 39971da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39981da177e4SLinus Torvalds return -EIO; 39991da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 4000c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4001c0eae66eSBenny Halevy if (unlikely(!p)) 4002eb72f484SChuck Lever return -EIO; 4003cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40041da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 40051da177e4SLinus Torvalds } 40063110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 40071da177e4SLinus Torvalds return status; 40081da177e4SLinus Torvalds } 40091da177e4SLinus Torvalds 40101da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40111da177e4SLinus Torvalds { 40128687b63aSAl Viro __be32 *p; 40131da177e4SLinus Torvalds int status = 0; 40141da177e4SLinus Torvalds 40151da177e4SLinus Torvalds *res = 0; 40161da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 40171da177e4SLinus Torvalds return -EIO; 40181da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 4019c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4020c0eae66eSBenny Halevy if (unlikely(!p)) 4021eb72f484SChuck Lever return -EIO; 4022cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40231da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 40241da177e4SLinus Torvalds } 40253110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 40261da177e4SLinus Torvalds return status; 40271da177e4SLinus Torvalds } 40281da177e4SLinus Torvalds 40291da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40301da177e4SLinus Torvalds { 40318687b63aSAl Viro __be32 *p; 40321da177e4SLinus Torvalds int status = 0; 40331da177e4SLinus Torvalds 40341da177e4SLinus Torvalds *res = 0; 40351da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40361da177e4SLinus Torvalds return -EIO; 40371da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4038c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4039c0eae66eSBenny Halevy if (unlikely(!p)) 4040eb72f484SChuck Lever return -EIO; 4041cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40421da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40431da177e4SLinus Torvalds } 40443110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40451da177e4SLinus Torvalds return status; 40461da177e4SLinus Torvalds } 40471da177e4SLinus Torvalds 40481da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40491da177e4SLinus Torvalds { 40508687b63aSAl Viro __be32 *p; 4051409924e4STrond Myklebust int ret = 0; 40521da177e4SLinus Torvalds 40531da177e4SLinus Torvalds *used = 0; 40541da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40551da177e4SLinus Torvalds return -EIO; 40561da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4057c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4058c0eae66eSBenny Halevy if (unlikely(!p)) 4059eb72f484SChuck Lever return -EIO; 4060cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40611da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4062409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40631da177e4SLinus Torvalds } 40643110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40651da177e4SLinus Torvalds (unsigned long long)*used); 4066409924e4STrond Myklebust return ret; 40671da177e4SLinus Torvalds } 40681da177e4SLinus Torvalds 406936b3743fSTrond Myklebust static __be32 * 407036b3743fSTrond Myklebust xdr_decode_nfstime4(__be32 *p, struct timespec *t) 407136b3743fSTrond Myklebust { 407236b3743fSTrond Myklebust __u64 sec; 407336b3743fSTrond Myklebust 407436b3743fSTrond Myklebust p = xdr_decode_hyper(p, &sec); 407536b3743fSTrond Myklebust t-> tv_sec = (time_t)sec; 407636b3743fSTrond Myklebust t->tv_nsec = be32_to_cpup(p++); 407736b3743fSTrond Myklebust return p; 407836b3743fSTrond Myklebust } 407936b3743fSTrond Myklebust 40801da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40811da177e4SLinus Torvalds { 40828687b63aSAl Viro __be32 *p; 40831da177e4SLinus Torvalds 408436b3743fSTrond Myklebust p = xdr_inline_decode(xdr, nfstime4_maxsz << 2); 4085c0eae66eSBenny Halevy if (unlikely(!p)) 4086eb72f484SChuck Lever return -EIO; 408736b3743fSTrond Myklebust xdr_decode_nfstime4(p, time); 40881da177e4SLinus Torvalds return 0; 40891da177e4SLinus Torvalds } 40901da177e4SLinus Torvalds 40911da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40921da177e4SLinus Torvalds { 40931da177e4SLinus Torvalds int status = 0; 40941da177e4SLinus Torvalds 40951da177e4SLinus Torvalds time->tv_sec = 0; 40961da177e4SLinus Torvalds time->tv_nsec = 0; 40971da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40981da177e4SLinus Torvalds return -EIO; 40991da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 41001da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4101409924e4STrond Myklebust if (status == 0) 4102409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 41031da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 41041da177e4SLinus Torvalds } 41053110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 41061da177e4SLinus Torvalds return status; 41071da177e4SLinus Torvalds } 41081da177e4SLinus Torvalds 41091da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41101da177e4SLinus Torvalds { 41111da177e4SLinus Torvalds int status = 0; 41121da177e4SLinus Torvalds 41131da177e4SLinus Torvalds time->tv_sec = 0; 41141da177e4SLinus Torvalds time->tv_nsec = 0; 41151da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 41161da177e4SLinus Torvalds return -EIO; 41171da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 41181da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4119409924e4STrond Myklebust if (status == 0) 4120409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 41211da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 41221da177e4SLinus Torvalds } 41233110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 41241da177e4SLinus Torvalds return status; 41251da177e4SLinus Torvalds } 41261da177e4SLinus Torvalds 412755b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 412855b6e774SRicardo Labiaga struct timespec *time) 412955b6e774SRicardo Labiaga { 413055b6e774SRicardo Labiaga int status = 0; 413155b6e774SRicardo Labiaga 413255b6e774SRicardo Labiaga time->tv_sec = 0; 413355b6e774SRicardo Labiaga time->tv_nsec = 0; 413455b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 413555b6e774SRicardo Labiaga return -EIO; 413655b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 413755b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 413855b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 413955b6e774SRicardo Labiaga } 414055b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 414155b6e774SRicardo Labiaga (long)time->tv_nsec); 414255b6e774SRicardo Labiaga return status; 414355b6e774SRicardo Labiaga } 414455b6e774SRicardo Labiaga 4145aa9c2669SDavid Quigley static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap, 4146aa9c2669SDavid Quigley struct nfs4_label *label) 4147aa9c2669SDavid Quigley { 4148aa9c2669SDavid Quigley uint32_t pi = 0; 4149aa9c2669SDavid Quigley uint32_t lfs = 0; 4150aa9c2669SDavid Quigley __u32 len; 4151aa9c2669SDavid Quigley __be32 *p; 4152aa9c2669SDavid Quigley int status = 0; 4153aa9c2669SDavid Quigley 4154aa9c2669SDavid Quigley if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U))) 4155aa9c2669SDavid Quigley return -EIO; 4156aa9c2669SDavid Quigley if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) { 4157aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4158aa9c2669SDavid Quigley if (unlikely(!p)) 4159eb72f484SChuck Lever return -EIO; 4160aa9c2669SDavid Quigley lfs = be32_to_cpup(p++); 4161aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4162aa9c2669SDavid Quigley if (unlikely(!p)) 4163eb72f484SChuck Lever return -EIO; 4164aa9c2669SDavid Quigley pi = be32_to_cpup(p++); 4165aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4166aa9c2669SDavid Quigley if (unlikely(!p)) 4167eb72f484SChuck Lever return -EIO; 4168aa9c2669SDavid Quigley len = be32_to_cpup(p++); 4169aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, len); 4170aa9c2669SDavid Quigley if (unlikely(!p)) 4171eb72f484SChuck Lever return -EIO; 4172aa9c2669SDavid Quigley if (len < NFS4_MAXLABELLEN) { 4173aa9c2669SDavid Quigley if (label) { 4174aa9c2669SDavid Quigley memcpy(label->label, p, len); 4175aa9c2669SDavid Quigley label->len = len; 4176aa9c2669SDavid Quigley label->pi = pi; 4177aa9c2669SDavid Quigley label->lfs = lfs; 4178aa9c2669SDavid Quigley status = NFS_ATTR_FATTR_V4_SECURITY_LABEL; 4179aa9c2669SDavid Quigley } 4180aa9c2669SDavid Quigley bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL; 4181aa9c2669SDavid Quigley } else 4182aa9c2669SDavid Quigley printk(KERN_WARNING "%s: label too long (%u)!\n", 4183aa9c2669SDavid Quigley __func__, len); 4184aa9c2669SDavid Quigley } 4185aa9c2669SDavid Quigley if (label && label->label) 4186aa9c2669SDavid Quigley dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__, 4187aa9c2669SDavid Quigley (char *)label->label, label->len, label->pi, label->lfs); 4188aa9c2669SDavid Quigley return status; 4189aa9c2669SDavid Quigley } 4190aa9c2669SDavid Quigley 41911da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41921da177e4SLinus Torvalds { 41931da177e4SLinus Torvalds int status = 0; 41941da177e4SLinus Torvalds 41951da177e4SLinus Torvalds time->tv_sec = 0; 41961da177e4SLinus Torvalds time->tv_nsec = 0; 41971da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 41981da177e4SLinus Torvalds return -EIO; 41991da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 42001da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4201409924e4STrond Myklebust if (status == 0) 4202409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 42031da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 42041da177e4SLinus Torvalds } 42053110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 42061da177e4SLinus Torvalds return status; 42071da177e4SLinus Torvalds } 42081da177e4SLinus Torvalds 4209256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 42101da177e4SLinus Torvalds { 42111da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4212256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 42131da177e4SLinus Torvalds 42141da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4215fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4216fe82a183SChuck Lever "%u %c %u\n", 42173110ff80SHarvey Harrison __func__, 42181da177e4SLinus Torvalds attrwords << 2, 42191da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 42201da177e4SLinus Torvalds nwords << 2); 42211da177e4SLinus Torvalds return -EIO; 42221da177e4SLinus Torvalds } 42231da177e4SLinus Torvalds return 0; 42241da177e4SLinus Torvalds } 42251da177e4SLinus Torvalds 42261da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42271da177e4SLinus Torvalds { 42288687b63aSAl Viro __be32 *p; 42291da177e4SLinus Torvalds 4230c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4231c0eae66eSBenny Halevy if (unlikely(!p)) 4232eb72f484SChuck Lever return -EIO; 42336f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 42343ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4235cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 42361da177e4SLinus Torvalds return 0; 42371da177e4SLinus Torvalds } 42381da177e4SLinus Torvalds 42396168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 42401da177e4SLinus Torvalds { 42418687b63aSAl Viro __be32 *p; 42421da177e4SLinus Torvalds uint32_t supp, acc; 42431da177e4SLinus Torvalds int status; 42441da177e4SLinus Torvalds 42451da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 42461da177e4SLinus Torvalds if (status) 42471da177e4SLinus Torvalds return status; 4248c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4249c0eae66eSBenny Halevy if (unlikely(!p)) 4250eb72f484SChuck Lever return -EIO; 42516f723f77SBenny Halevy supp = be32_to_cpup(p++); 4252cccddf4fSBenny Halevy acc = be32_to_cpup(p); 42536168f62cSWeston Andros Adamson *supported = supp; 42546168f62cSWeston Andros Adamson *access = acc; 42551da177e4SLinus Torvalds return 0; 42561da177e4SLinus Torvalds } 42571da177e4SLinus Torvalds 425807d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 42591da177e4SLinus Torvalds { 4260ab6e9aafSTrond Myklebust ssize_t ret = xdr_stream_decode_opaque_fixed(xdr, buf, len); 4261eb72f484SChuck Lever if (unlikely(ret < 0)) 426207d30434SBenny Halevy return -EIO; 4263ab6e9aafSTrond Myklebust return 0; 4264ab6e9aafSTrond Myklebust } 426507d30434SBenny Halevy 426607d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 426707d30434SBenny Halevy { 42682d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 42691da177e4SLinus Torvalds } 42701da177e4SLinus Torvalds 427193b717fdSTrond Myklebust static int decode_open_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 427293b717fdSTrond Myklebust { 427393b717fdSTrond Myklebust stateid->type = NFS4_OPEN_STATEID_TYPE; 427493b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 427593b717fdSTrond Myklebust } 427693b717fdSTrond Myklebust 427793b717fdSTrond Myklebust static int decode_lock_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 427893b717fdSTrond Myklebust { 427993b717fdSTrond Myklebust stateid->type = NFS4_LOCK_STATEID_TYPE; 428093b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 428193b717fdSTrond Myklebust } 428293b717fdSTrond Myklebust 428393b717fdSTrond Myklebust static int decode_delegation_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 428493b717fdSTrond Myklebust { 428593b717fdSTrond Myklebust stateid->type = NFS4_DELEGATION_STATEID_TYPE; 428693b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 428793b717fdSTrond Myklebust } 428893b717fdSTrond Myklebust 4289fcd8843cSTrond Myklebust static int decode_invalid_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 4290fcd8843cSTrond Myklebust { 4291fcd8843cSTrond Myklebust nfs4_stateid dummy; 4292fcd8843cSTrond Myklebust 4293fcd8843cSTrond Myklebust nfs4_stateid_copy(stateid, &invalid_stateid); 4294fcd8843cSTrond Myklebust return decode_stateid(xdr, &dummy); 4295fcd8843cSTrond Myklebust } 4296fcd8843cSTrond Myklebust 42971da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 42981da177e4SLinus Torvalds { 42991da177e4SLinus Torvalds int status; 43001da177e4SLinus Torvalds 43011da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4302c1d51931STrond Myklebust if (status != -EIO) 4303c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 430407d30434SBenny Halevy if (!status) 4305fcd8843cSTrond Myklebust status = decode_invalid_stateid(xdr, &res->stateid); 43061da177e4SLinus Torvalds return status; 43071da177e4SLinus Torvalds } 43081da177e4SLinus Torvalds 4309db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4310db942bbdSBenny Halevy { 4311cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 43121da177e4SLinus Torvalds } 43131da177e4SLinus Torvalds 43142f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 43152f2c63bcSTrond Myklebust { 43162f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 43172f2c63bcSTrond Myklebust } 43182f2c63bcSTrond Myklebust 43190b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 43201da177e4SLinus Torvalds { 43211da177e4SLinus Torvalds int status; 43221da177e4SLinus Torvalds 43231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4324db942bbdSBenny Halevy if (!status) 43252f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 43261da177e4SLinus Torvalds return status; 43271da177e4SLinus Torvalds } 43281da177e4SLinus Torvalds 43291da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43301da177e4SLinus Torvalds { 43318687b63aSAl Viro __be32 *p; 43321da177e4SLinus Torvalds uint32_t bmlen; 43331da177e4SLinus Torvalds int status; 43341da177e4SLinus Torvalds 43351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 43361da177e4SLinus Torvalds if (status) 43371da177e4SLinus Torvalds return status; 43381da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 43391da177e4SLinus Torvalds return status; 4340c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4341c0eae66eSBenny Halevy if (unlikely(!p)) 4342eb72f484SChuck Lever return -EIO; 4343cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4344c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4345c0eae66eSBenny Halevy if (likely(p)) 43461da177e4SLinus Torvalds return 0; 4347c0eae66eSBenny Halevy return -EIO; 43481da177e4SLinus Torvalds } 43491da177e4SLinus Torvalds 43501da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 43511da177e4SLinus Torvalds { 4352256e48bbSTrond Myklebust unsigned int savep; 4353dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43541da177e4SLinus Torvalds int status; 43551da177e4SLinus Torvalds 43561da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43571da177e4SLinus Torvalds goto xdr_error; 43581da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43591da177e4SLinus Torvalds goto xdr_error; 43601da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43611da177e4SLinus Torvalds goto xdr_error; 43621da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 43631da177e4SLinus Torvalds goto xdr_error; 4364264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4365264e6351SChuck Lever &res->fh_expire_type)) != 0) 4366264e6351SChuck Lever goto xdr_error; 43671da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 43681da177e4SLinus Torvalds goto xdr_error; 43691da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 43701da177e4SLinus Torvalds goto xdr_error; 43711da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 43721da177e4SLinus Torvalds goto xdr_error; 43738c61282fSKinglong Mee if ((status = decode_attr_exclcreat_supported(xdr, bitmap, 43748c61282fSKinglong Mee res->exclcreat_bitmask)) != 0) 43758c61282fSKinglong Mee goto xdr_error; 43761da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43771da177e4SLinus Torvalds xdr_error: 43783110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43791da177e4SLinus Torvalds return status; 43801da177e4SLinus Torvalds } 43811da177e4SLinus Torvalds 43821da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 43831da177e4SLinus Torvalds { 4384256e48bbSTrond Myklebust unsigned int savep; 4385dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43861da177e4SLinus Torvalds int status; 43871da177e4SLinus Torvalds 43881da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43891da177e4SLinus Torvalds goto xdr_error; 43901da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43911da177e4SLinus Torvalds goto xdr_error; 43921da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43931da177e4SLinus Torvalds goto xdr_error; 43941da177e4SLinus Torvalds 43951da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 43961da177e4SLinus Torvalds goto xdr_error; 43971da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 43981da177e4SLinus Torvalds goto xdr_error; 43991da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 44001da177e4SLinus Torvalds goto xdr_error; 44011ca843a2SAndreas Gruenbacher 44021ca843a2SAndreas Gruenbacher status = -EIO; 44031ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 44041ca843a2SAndreas Gruenbacher goto xdr_error; 44051ca843a2SAndreas Gruenbacher 44061da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 44071da177e4SLinus Torvalds goto xdr_error; 44081da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 44091da177e4SLinus Torvalds goto xdr_error; 44101da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 44111da177e4SLinus Torvalds goto xdr_error; 44121da177e4SLinus Torvalds 44131da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44141da177e4SLinus Torvalds xdr_error: 44153110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44161da177e4SLinus Torvalds return status; 44171da177e4SLinus Torvalds } 44181da177e4SLinus Torvalds 44191da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 44201da177e4SLinus Torvalds { 4421256e48bbSTrond Myklebust unsigned int savep; 4422dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 44231da177e4SLinus Torvalds int status; 44241da177e4SLinus Torvalds 44251da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 44261da177e4SLinus Torvalds goto xdr_error; 44271da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 44281da177e4SLinus Torvalds goto xdr_error; 44291da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 44301da177e4SLinus Torvalds goto xdr_error; 44311da177e4SLinus Torvalds 44321da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 44331da177e4SLinus Torvalds goto xdr_error; 44341da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 44351da177e4SLinus Torvalds goto xdr_error; 44361da177e4SLinus Torvalds 44371da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44381da177e4SLinus Torvalds xdr_error: 44393110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44401da177e4SLinus Torvalds return status; 44411da177e4SLinus Torvalds } 44421da177e4SLinus Torvalds 444388034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 444488034c3dSAndy Adamson uint32_t *bitmap, 444588034c3dSAndy Adamson uint64_t *res, 444688034c3dSAndy Adamson uint32_t hint_bit) 444788034c3dSAndy Adamson { 444888034c3dSAndy Adamson __be32 *p; 444988034c3dSAndy Adamson 445088034c3dSAndy Adamson *res = 0; 445188034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 445288034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 445388034c3dSAndy Adamson if (unlikely(!p)) 4454eb72f484SChuck Lever return -EIO; 445588034c3dSAndy Adamson xdr_decode_hyper(p, res); 445688034c3dSAndy Adamson } 445788034c3dSAndy Adamson return 0; 445888034c3dSAndy Adamson } 445988034c3dSAndy Adamson 446088034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 446188034c3dSAndy Adamson struct nfs4_threshold *res) 446288034c3dSAndy Adamson { 4463256e48bbSTrond Myklebust __be32 *p; 4464256e48bbSTrond Myklebust unsigned int savep; 446588034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 446688034c3dSAndy Adamson int status; 446788034c3dSAndy Adamson 446888034c3dSAndy Adamson /* layout type */ 446988034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 4470eb72f484SChuck Lever if (unlikely(!p)) 447188034c3dSAndy Adamson return -EIO; 447288034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 447388034c3dSAndy Adamson 447488034c3dSAndy Adamson /* thi_hintset bitmap */ 447588034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 447688034c3dSAndy Adamson if (status < 0) 447788034c3dSAndy Adamson goto xdr_error; 447888034c3dSAndy Adamson 447988034c3dSAndy Adamson /* thi_hintlist length */ 448088034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 448188034c3dSAndy Adamson if (status < 0) 448288034c3dSAndy Adamson goto xdr_error; 448388034c3dSAndy Adamson /* thi_hintlist */ 448488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 448588034c3dSAndy Adamson if (status < 0) 448688034c3dSAndy Adamson goto xdr_error; 448788034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 448888034c3dSAndy Adamson if (status < 0) 448988034c3dSAndy Adamson goto xdr_error; 449088034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 449188034c3dSAndy Adamson THRESHOLD_RD_IO); 449288034c3dSAndy Adamson if (status < 0) 449388034c3dSAndy Adamson goto xdr_error; 449488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 449588034c3dSAndy Adamson THRESHOLD_WR_IO); 449688034c3dSAndy Adamson if (status < 0) 449788034c3dSAndy Adamson goto xdr_error; 449888034c3dSAndy Adamson 449988034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 450088034c3dSAndy Adamson res->bm = bitmap[0]; 450188034c3dSAndy Adamson 450288034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 450388034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 450488034c3dSAndy Adamson res->wr_io_sz); 450588034c3dSAndy Adamson xdr_error: 450688034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 450788034c3dSAndy Adamson return status; 450888034c3dSAndy Adamson } 450988034c3dSAndy Adamson 451088034c3dSAndy Adamson /* 451188034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 451288034c3dSAndy Adamson */ 451388034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 451488034c3dSAndy Adamson uint32_t *bitmap, 451588034c3dSAndy Adamson struct nfs4_threshold *res) 451688034c3dSAndy Adamson { 451788034c3dSAndy Adamson __be32 *p; 451888034c3dSAndy Adamson int status = 0; 451988034c3dSAndy Adamson uint32_t num; 452088034c3dSAndy Adamson 452188034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 452288034c3dSAndy Adamson return -EIO; 4523029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 45241549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 45251549210fSTrond Myklebust if (unlikely(res == NULL)) 45261549210fSTrond Myklebust return -EREMOTEIO; 452788034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 452888034c3dSAndy Adamson if (unlikely(!p)) 4529eb72f484SChuck Lever return -EIO; 453088034c3dSAndy Adamson num = be32_to_cpup(p); 453188034c3dSAndy Adamson if (num == 0) 453288034c3dSAndy Adamson return 0; 453388034c3dSAndy Adamson if (num > 1) 453488034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 453588034c3dSAndy Adamson "drivers per filesystem not supported\n", 453688034c3dSAndy Adamson __func__); 453788034c3dSAndy Adamson 453888034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4539029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 454088034c3dSAndy Adamson } 454188034c3dSAndy Adamson return status; 454288034c3dSAndy Adamson } 454388034c3dSAndy Adamson 4544ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4545ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 4546aa9c2669SDavid Quigley struct nfs4_fs_locations *fs_loc, struct nfs4_label *label, 45476926afd1STrond Myklebust const struct nfs_server *server) 45481da177e4SLinus Torvalds { 4549bca79478STrond Myklebust int status; 4550bca79478STrond Myklebust umode_t fmode = 0; 4551ae42c70aSBryan Schumaker uint32_t type; 4552ee7b75fcSTrond Myklebust int32_t err; 45531da177e4SLinus Torvalds 4554f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4555f26c7a78STrond Myklebust if (status < 0) 45561da177e4SLinus Torvalds goto xdr_error; 4557409924e4STrond Myklebust fattr->mode = 0; 4558409924e4STrond Myklebust if (status != 0) { 4559409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4560409924e4STrond Myklebust fattr->valid |= status; 4561409924e4STrond Myklebust } 45621da177e4SLinus Torvalds 4563f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4564f26c7a78STrond Myklebust if (status < 0) 45651da177e4SLinus Torvalds goto xdr_error; 4566409924e4STrond Myklebust fattr->valid |= status; 4567f26c7a78STrond Myklebust 4568f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4569f26c7a78STrond Myklebust if (status < 0) 45701da177e4SLinus Torvalds goto xdr_error; 4571409924e4STrond Myklebust fattr->valid |= status; 4572f26c7a78STrond Myklebust 4573f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4574f26c7a78STrond Myklebust if (status < 0) 45751da177e4SLinus Torvalds goto xdr_error; 4576409924e4STrond Myklebust fattr->valid |= status; 4577f26c7a78STrond Myklebust 4578ee7b75fcSTrond Myklebust err = 0; 4579ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4580ae42c70aSBryan Schumaker if (status < 0) 4581ae42c70aSBryan Schumaker goto xdr_error; 4582ae42c70aSBryan Schumaker 4583ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4584ae42c70aSBryan Schumaker if (status < 0) 4585ae42c70aSBryan Schumaker goto xdr_error; 4586ae42c70aSBryan Schumaker 4587f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4588f26c7a78STrond Myklebust if (status < 0) 45891da177e4SLinus Torvalds goto xdr_error; 4590409924e4STrond Myklebust fattr->valid |= status; 4591f26c7a78STrond Myklebust 45928b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4593f26c7a78STrond Myklebust if (status < 0) 4594683b57b4STrond Myklebust goto xdr_error; 4595409924e4STrond Myklebust fattr->valid |= status; 4596f26c7a78STrond Myklebust 45971ca843a2SAndreas Gruenbacher status = -EIO; 45981ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 45991ca843a2SAndreas Gruenbacher goto xdr_error; 46001ca843a2SAndreas Gruenbacher 4601f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4602f26c7a78STrond Myklebust if (status < 0) 46031da177e4SLinus Torvalds goto xdr_error; 4604409924e4STrond Myklebust if (status != 0) { 46051da177e4SLinus Torvalds fattr->mode |= fmode; 4606409924e4STrond Myklebust fattr->valid |= status; 4607409924e4STrond Myklebust } 4608f26c7a78STrond Myklebust 4609f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4610f26c7a78STrond Myklebust if (status < 0) 46111da177e4SLinus Torvalds goto xdr_error; 4612409924e4STrond Myklebust fattr->valid |= status; 4613f26c7a78STrond Myklebust 46146926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4615f26c7a78STrond Myklebust if (status < 0) 46161da177e4SLinus Torvalds goto xdr_error; 4617409924e4STrond Myklebust fattr->valid |= status; 4618f26c7a78STrond Myklebust 46196926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4620f26c7a78STrond Myklebust if (status < 0) 46211da177e4SLinus Torvalds goto xdr_error; 4622409924e4STrond Myklebust fattr->valid |= status; 4623f26c7a78STrond Myklebust 4624f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4625f26c7a78STrond Myklebust if (status < 0) 46261da177e4SLinus Torvalds goto xdr_error; 4627409924e4STrond Myklebust fattr->valid |= status; 4628f26c7a78STrond Myklebust 4629f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4630f26c7a78STrond Myklebust if (status < 0) 46311da177e4SLinus Torvalds goto xdr_error; 4632409924e4STrond Myklebust fattr->valid |= status; 4633f26c7a78STrond Myklebust 4634f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4635f26c7a78STrond Myklebust if (status < 0) 46361da177e4SLinus Torvalds goto xdr_error; 4637409924e4STrond Myklebust fattr->valid |= status; 4638f26c7a78STrond Myklebust 4639f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4640f26c7a78STrond Myklebust if (status < 0) 46411da177e4SLinus Torvalds goto xdr_error; 4642409924e4STrond Myklebust fattr->valid |= status; 4643f26c7a78STrond Myklebust 4644f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4645f26c7a78STrond Myklebust if (status < 0) 46461da177e4SLinus Torvalds goto xdr_error; 4647409924e4STrond Myklebust fattr->valid |= status; 4648f26c7a78STrond Myklebust 464928331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4650f26c7a78STrond Myklebust if (status < 0) 465199baf625SManoj Naik goto xdr_error; 4652409924e4STrond Myklebust fattr->valid |= status; 4653f26c7a78STrond Myklebust 46541ca843a2SAndreas Gruenbacher status = -EIO; 46551ca843a2SAndreas Gruenbacher if (unlikely(bitmap[1])) 46561ca843a2SAndreas Gruenbacher goto xdr_error; 46571ca843a2SAndreas Gruenbacher 465888034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 465988034c3dSAndy Adamson if (status < 0) 466088034c3dSAndy Adamson goto xdr_error; 466188034c3dSAndy Adamson 4662aa9c2669SDavid Quigley if (label) { 4663aa9c2669SDavid Quigley status = decode_attr_security_label(xdr, bitmap, label); 4664aa9c2669SDavid Quigley if (status < 0) 4665aa9c2669SDavid Quigley goto xdr_error; 4666aa9c2669SDavid Quigley fattr->valid |= status; 4667aa9c2669SDavid Quigley } 4668aa9c2669SDavid Quigley 4669ae42c70aSBryan Schumaker xdr_error: 4670ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4671ae42c70aSBryan Schumaker return status; 4672ae42c70aSBryan Schumaker } 4673ae42c70aSBryan Schumaker 4674ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 46758b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 4676aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4677ae42c70aSBryan Schumaker { 4678256e48bbSTrond Myklebust unsigned int savep; 4679ae42c70aSBryan Schumaker uint32_t attrlen, 4680dae100c2SFred Isaman bitmap[3] = {0}; 4681ae42c70aSBryan Schumaker int status; 4682ae42c70aSBryan Schumaker 4683ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4684ae42c70aSBryan Schumaker if (status < 0) 4685ae42c70aSBryan Schumaker goto xdr_error; 4686ae42c70aSBryan Schumaker 4687ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4688ae42c70aSBryan Schumaker if (status < 0) 4689ae42c70aSBryan Schumaker goto xdr_error; 4690ae42c70aSBryan Schumaker 4691ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4692ae42c70aSBryan Schumaker if (status < 0) 4693ae42c70aSBryan Schumaker goto xdr_error; 4694ae42c70aSBryan Schumaker 4695aa9c2669SDavid Quigley status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, 4696aa9c2669SDavid Quigley label, server); 4697ae42c70aSBryan Schumaker if (status < 0) 4698ae42c70aSBryan Schumaker goto xdr_error; 4699ae42c70aSBryan Schumaker 4700f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 47011da177e4SLinus Torvalds xdr_error: 47023110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 47031da177e4SLinus Torvalds return status; 47041da177e4SLinus Torvalds } 47051da177e4SLinus Torvalds 4706aa9c2669SDavid Quigley static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4707aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4708aa9c2669SDavid Quigley { 4709aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server); 4710aa9c2669SDavid Quigley } 4711aa9c2669SDavid Quigley 4712ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 47136926afd1STrond Myklebust const struct nfs_server *server) 4714ae42c70aSBryan Schumaker { 4715aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server); 4716ae42c70aSBryan Schumaker } 47171da177e4SLinus Torvalds 4718504913fbSAndy Adamson /* 47193132e49eSJeff Layton * Decode potentially multiple layout types. 4720504913fbSAndy Adamson */ 47213132e49eSJeff Layton static int decode_pnfs_layout_types(struct xdr_stream *xdr, 4722ca440c38SJeff Layton struct nfs_fsinfo *fsinfo) 4723504913fbSAndy Adamson { 4724b8a8a0ddSTrond Myklebust __be32 *p; 4725ca440c38SJeff Layton uint32_t i; 4726504913fbSAndy Adamson 4727504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4728504913fbSAndy Adamson if (unlikely(!p)) 4729eb72f484SChuck Lever return -EIO; 4730ca440c38SJeff Layton fsinfo->nlayouttypes = be32_to_cpup(p); 4731504913fbSAndy Adamson 4732504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4733ca440c38SJeff Layton if (fsinfo->nlayouttypes == 0) 4734504913fbSAndy Adamson return 0; 4735504913fbSAndy Adamson 4736504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4737ca440c38SJeff Layton p = xdr_inline_decode(xdr, fsinfo->nlayouttypes * 4); 4738504913fbSAndy Adamson if (unlikely(!p)) 4739eb72f484SChuck Lever return -EIO; 4740ca440c38SJeff Layton 4741ca440c38SJeff Layton /* If we get too many, then just cap it at the max */ 4742ca440c38SJeff Layton if (fsinfo->nlayouttypes > NFS_MAX_LAYOUT_TYPES) { 4743ca440c38SJeff Layton printk(KERN_INFO "NFS: %s: Warning: Too many (%u) pNFS layout types\n", 4744ca440c38SJeff Layton __func__, fsinfo->nlayouttypes); 4745ca440c38SJeff Layton fsinfo->nlayouttypes = NFS_MAX_LAYOUT_TYPES; 4746ca440c38SJeff Layton } 4747ca440c38SJeff Layton 4748ca440c38SJeff Layton for(i = 0; i < fsinfo->nlayouttypes; ++i) 4749ca440c38SJeff Layton fsinfo->layouttype[i] = be32_to_cpup(p++); 4750504913fbSAndy Adamson return 0; 4751504913fbSAndy Adamson } 4752504913fbSAndy Adamson 4753504913fbSAndy Adamson /* 4754504913fbSAndy Adamson * The type of file system exported. 4755504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4756504913fbSAndy Adamson */ 4757504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4758ca440c38SJeff Layton struct nfs_fsinfo *fsinfo) 4759504913fbSAndy Adamson { 4760504913fbSAndy Adamson int status = 0; 4761504913fbSAndy Adamson 4762504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4763504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4764504913fbSAndy Adamson return -EIO; 4765504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4766ca440c38SJeff Layton status = decode_pnfs_layout_types(xdr, fsinfo); 4767504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 47683132e49eSJeff Layton } 4769504913fbSAndy Adamson return status; 4770504913fbSAndy Adamson } 4771504913fbSAndy Adamson 4772dae100c2SFred Isaman /* 4773dae100c2SFred Isaman * The prefered block size for layout directed io 4774dae100c2SFred Isaman */ 4775dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4776dae100c2SFred Isaman uint32_t *res) 4777dae100c2SFred Isaman { 4778dae100c2SFred Isaman __be32 *p; 4779dae100c2SFred Isaman 4780dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4781dae100c2SFred Isaman *res = 0; 4782dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4783dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4784eb72f484SChuck Lever if (unlikely(!p)) 4785dae100c2SFred Isaman return -EIO; 4786dae100c2SFred Isaman *res = be32_to_cpup(p); 4787dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4788dae100c2SFred Isaman } 4789dae100c2SFred Isaman return 0; 4790dae100c2SFred Isaman } 4791dae100c2SFred Isaman 47922a92ee92SPeng Tao /* 47932a92ee92SPeng Tao * The granularity of a CLONE operation. 47942a92ee92SPeng Tao */ 47952a92ee92SPeng Tao static int decode_attr_clone_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 47962a92ee92SPeng Tao uint32_t *res) 47972a92ee92SPeng Tao { 47982a92ee92SPeng Tao __be32 *p; 47992a92ee92SPeng Tao 48002a92ee92SPeng Tao dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 48012a92ee92SPeng Tao *res = 0; 48022a92ee92SPeng Tao if (bitmap[2] & FATTR4_WORD2_CLONE_BLKSIZE) { 48032a92ee92SPeng Tao p = xdr_inline_decode(xdr, 4); 4804eb72f484SChuck Lever if (unlikely(!p)) 48052a92ee92SPeng Tao return -EIO; 48062a92ee92SPeng Tao *res = be32_to_cpup(p); 48072a92ee92SPeng Tao bitmap[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE; 48082a92ee92SPeng Tao } 48092a92ee92SPeng Tao return 0; 48102a92ee92SPeng Tao } 48112a92ee92SPeng Tao 48121da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 48131da177e4SLinus Torvalds { 4814256e48bbSTrond Myklebust unsigned int savep; 4815dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 48161da177e4SLinus Torvalds int status; 48171da177e4SLinus Torvalds 48181da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 48191da177e4SLinus Torvalds goto xdr_error; 48201da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 48211da177e4SLinus Torvalds goto xdr_error; 48221da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 48231da177e4SLinus Torvalds goto xdr_error; 48241da177e4SLinus Torvalds 48251da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 48261da177e4SLinus Torvalds 48271da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 48281da177e4SLinus Torvalds goto xdr_error; 48291da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 48301da177e4SLinus Torvalds goto xdr_error; 48311da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 48321da177e4SLinus Torvalds goto xdr_error; 48331da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 48341da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 48351da177e4SLinus Torvalds goto xdr_error; 48361da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 48371ca843a2SAndreas Gruenbacher 48381ca843a2SAndreas Gruenbacher status = -EIO; 48391ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 48401ca843a2SAndreas Gruenbacher goto xdr_error; 48411ca843a2SAndreas Gruenbacher 484255b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 484355b6e774SRicardo Labiaga if (status != 0) 484455b6e774SRicardo Labiaga goto xdr_error; 4845ca440c38SJeff Layton status = decode_attr_pnfstype(xdr, bitmap, fsinfo); 4846504913fbSAndy Adamson if (status != 0) 4847504913fbSAndy Adamson goto xdr_error; 48481ca843a2SAndreas Gruenbacher 48491ca843a2SAndreas Gruenbacher status = -EIO; 48501ca843a2SAndreas Gruenbacher if (unlikely(bitmap[1])) 48511ca843a2SAndreas Gruenbacher goto xdr_error; 48521ca843a2SAndreas Gruenbacher 4853dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4854dae100c2SFred Isaman if (status) 4855dae100c2SFred Isaman goto xdr_error; 48562a92ee92SPeng Tao status = decode_attr_clone_blksize(xdr, bitmap, &fsinfo->clone_blksize); 48572a92ee92SPeng Tao if (status) 48582a92ee92SPeng Tao goto xdr_error; 48591da177e4SLinus Torvalds 48601da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 48611da177e4SLinus Torvalds xdr_error: 48623110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 48631da177e4SLinus Torvalds return status; 48641da177e4SLinus Torvalds } 48651da177e4SLinus Torvalds 48661da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 48671da177e4SLinus Torvalds { 48688687b63aSAl Viro __be32 *p; 48691da177e4SLinus Torvalds uint32_t len; 48701da177e4SLinus Torvalds int status; 48711da177e4SLinus Torvalds 48729936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 48739936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 48749936781dSTrond Myklebust 48751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 48761da177e4SLinus Torvalds if (status) 48771da177e4SLinus Torvalds return status; 48781da177e4SLinus Torvalds 4879c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4880c0eae66eSBenny Halevy if (unlikely(!p)) 4881eb72f484SChuck Lever return -EIO; 4882cccddf4fSBenny Halevy len = be32_to_cpup(p); 48831da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 48841da177e4SLinus Torvalds return -EIO; 48851da177e4SLinus Torvalds fh->size = len; 4886c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4887c0eae66eSBenny Halevy if (unlikely(!p)) 4888eb72f484SChuck Lever return -EIO; 488999398d06SBenny Halevy memcpy(fh->data, p, len); 48901da177e4SLinus Torvalds return 0; 48911da177e4SLinus Torvalds } 48921da177e4SLinus Torvalds 48931da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 48941da177e4SLinus Torvalds { 48951da177e4SLinus Torvalds int status; 48961da177e4SLinus Torvalds 48971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 48981da177e4SLinus Torvalds if (status) 48991da177e4SLinus Torvalds return status; 49001da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 49011da177e4SLinus Torvalds } 49021da177e4SLinus Torvalds 49031da177e4SLinus Torvalds /* 49041da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 49051da177e4SLinus Torvalds */ 4906911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 49071da177e4SLinus Torvalds { 4908911d1aafSTrond Myklebust uint64_t offset, length, clientid; 49098687b63aSAl Viro __be32 *p; 4910911d1aafSTrond Myklebust uint32_t namelen, type; 49111da177e4SLinus Torvalds 4912babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4913c0eae66eSBenny Halevy if (unlikely(!p)) 4914eb72f484SChuck Lever return -EIO; 4915babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 49163ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4917babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4918babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4919911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4920911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4921911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4922911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4923911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4924911d1aafSTrond Myklebust if (type & 1) 4925911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4926911d1aafSTrond Myklebust fl->fl_pid = 0; 4927911d1aafSTrond Myklebust } 4928babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4929babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4930babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4931eb72f484SChuck Lever if (likely(!p)) 4932c0eae66eSBenny Halevy return -EIO; 4933eb72f484SChuck Lever return -NFS4ERR_DENIED; 49341da177e4SLinus Torvalds } 49351da177e4SLinus Torvalds 4936911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 49371da177e4SLinus Torvalds { 49381da177e4SLinus Torvalds int status; 49391da177e4SLinus Torvalds 49401da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4941c1d51931STrond Myklebust if (status == -EIO) 4942c1d51931STrond Myklebust goto out; 49431da177e4SLinus Torvalds if (status == 0) { 494493b717fdSTrond Myklebust status = decode_lock_stateid(xdr, &res->stateid); 494507d30434SBenny Halevy if (unlikely(status)) 494607d30434SBenny Halevy goto out; 49471da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4948c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4949c1d51931STrond Myklebust if (res->open_seqid != NULL) 4950c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4951c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4952c1d51931STrond Myklebust out: 49531da177e4SLinus Torvalds return status; 49541da177e4SLinus Torvalds } 49551da177e4SLinus Torvalds 4956911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 49571da177e4SLinus Torvalds { 49581da177e4SLinus Torvalds int status; 49591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 49601da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4961911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 49621da177e4SLinus Torvalds return status; 49631da177e4SLinus Torvalds } 49641da177e4SLinus Torvalds 4965911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 49661da177e4SLinus Torvalds { 49671da177e4SLinus Torvalds int status; 49681da177e4SLinus Torvalds 49691da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4970c1d51931STrond Myklebust if (status != -EIO) 4971c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 497207d30434SBenny Halevy if (status == 0) 497393b717fdSTrond Myklebust status = decode_lock_stateid(xdr, &res->stateid); 49741da177e4SLinus Torvalds return status; 49751da177e4SLinus Torvalds } 49761da177e4SLinus Torvalds 4977d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4978d3c7b7ccSTrond Myklebust { 4979d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4980d3c7b7ccSTrond Myklebust } 4981d3c7b7ccSTrond Myklebust 49821da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 49831da177e4SLinus Torvalds { 49841da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 49851da177e4SLinus Torvalds } 49861da177e4SLinus Torvalds 49875b5faaf6SJeff Layton static int decode_lookupp(struct xdr_stream *xdr) 49885b5faaf6SJeff Layton { 49895b5faaf6SJeff Layton return decode_op_hdr(xdr, OP_LOOKUPP); 49905b5faaf6SJeff Layton } 49915b5faaf6SJeff Layton 49921da177e4SLinus Torvalds /* This is too sick! */ 49937d160a6cSTrond Myklebust static int decode_space_limit(struct xdr_stream *xdr, 49947d160a6cSTrond Myklebust unsigned long *pagemod_limit) 49951da177e4SLinus Torvalds { 49968687b63aSAl Viro __be32 *p; 49971da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 49987d160a6cSTrond Myklebust u64 maxsize = 0; 49991da177e4SLinus Torvalds 5000c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5001c0eae66eSBenny Halevy if (unlikely(!p)) 5002eb72f484SChuck Lever return -EIO; 50036f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 50041da177e4SLinus Torvalds switch (limit_type) { 50057d160a6cSTrond Myklebust case NFS4_LIMIT_SIZE: 50067d160a6cSTrond Myklebust xdr_decode_hyper(p, &maxsize); 50071da177e4SLinus Torvalds break; 50087d160a6cSTrond Myklebust case NFS4_LIMIT_BLOCKS: 50096f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 5010cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 50117d160a6cSTrond Myklebust maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 50121da177e4SLinus Torvalds } 501309cbfeafSKirill A. Shutemov maxsize >>= PAGE_SHIFT; 50147d160a6cSTrond Myklebust *pagemod_limit = min_t(u64, maxsize, ULONG_MAX); 50151da177e4SLinus Torvalds return 0; 50161da177e4SLinus Torvalds } 50171da177e4SLinus Torvalds 50186ae37339STrond Myklebust static int decode_rw_delegation(struct xdr_stream *xdr, 50196ae37339STrond Myklebust uint32_t delegation_type, 50206ae37339STrond Myklebust struct nfs_openres *res) 50211da177e4SLinus Torvalds { 50228687b63aSAl Viro __be32 *p; 502307d30434SBenny Halevy int status; 50241da177e4SLinus Torvalds 502593b717fdSTrond Myklebust status = decode_delegation_stateid(xdr, &res->delegation); 502607d30434SBenny Halevy if (unlikely(status)) 502707d30434SBenny Halevy return status; 5028c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5029c0eae66eSBenny Halevy if (unlikely(!p)) 5030eb72f484SChuck Lever return -EIO; 5031cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 503205d564feSAndy Adamson 50331da177e4SLinus Torvalds switch (delegation_type) { 50341da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 50351da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 50361da177e4SLinus Torvalds break; 50371da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 50381da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 50397d160a6cSTrond Myklebust if (decode_space_limit(xdr, &res->pagemod_limit) < 0) 50401da177e4SLinus Torvalds return -EIO; 50411da177e4SLinus Torvalds } 50421bbe60ffSTrond Myklebust return decode_ace(xdr, NULL); 50431da177e4SLinus Torvalds } 50441da177e4SLinus Torvalds 50456ae37339STrond Myklebust static int decode_no_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 50466ae37339STrond Myklebust { 50476ae37339STrond Myklebust __be32 *p; 50486ae37339STrond Myklebust uint32_t why_no_delegation; 50496ae37339STrond Myklebust 50506ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 50516ae37339STrond Myklebust if (unlikely(!p)) 5052eb72f484SChuck Lever return -EIO; 50536ae37339STrond Myklebust why_no_delegation = be32_to_cpup(p); 50546ae37339STrond Myklebust switch (why_no_delegation) { 50556ae37339STrond Myklebust case WND4_CONTENTION: 50566ae37339STrond Myklebust case WND4_RESOURCE: 50576ae37339STrond Myklebust xdr_inline_decode(xdr, 4); 50586ae37339STrond Myklebust /* Ignore for now */ 50596ae37339STrond Myklebust } 50606ae37339STrond Myklebust return 0; 50616ae37339STrond Myklebust } 50626ae37339STrond Myklebust 50636ae37339STrond Myklebust static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 50646ae37339STrond Myklebust { 50656ae37339STrond Myklebust __be32 *p; 50666ae37339STrond Myklebust uint32_t delegation_type; 50676ae37339STrond Myklebust 50686ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 50696ae37339STrond Myklebust if (unlikely(!p)) 5070eb72f484SChuck Lever return -EIO; 50716ae37339STrond Myklebust delegation_type = be32_to_cpup(p); 50726ae37339STrond Myklebust res->delegation_type = 0; 50736ae37339STrond Myklebust switch (delegation_type) { 50746ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE: 50756ae37339STrond Myklebust return 0; 50766ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_READ: 50776ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_WRITE: 50786ae37339STrond Myklebust return decode_rw_delegation(xdr, delegation_type, res); 50796ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE_EXT: 50806ae37339STrond Myklebust return decode_no_delegation(xdr, res); 50816ae37339STrond Myklebust } 50826ae37339STrond Myklebust return -EIO; 50836ae37339STrond Myklebust } 50846ae37339STrond Myklebust 50851da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 50861da177e4SLinus Torvalds { 50878687b63aSAl Viro __be32 *p; 5088aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 50891da177e4SLinus Torvalds int status; 50901da177e4SLinus Torvalds 5091c7848f69STrond Myklebust if (!__decode_op_hdr(xdr, OP_OPEN, &status)) 5092c7848f69STrond Myklebust return status; 5093c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 5094c7848f69STrond Myklebust if (status) 5095c7848f69STrond Myklebust return status; 509693b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 509707d30434SBenny Halevy if (unlikely(status)) 50981da177e4SLinus Torvalds return status; 50991da177e4SLinus Torvalds 51001da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 51011da177e4SLinus Torvalds 5102c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5103c0eae66eSBenny Halevy if (unlikely(!p)) 5104eb72f484SChuck Lever return -EIO; 51056f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 5106cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 51071da177e4SLinus Torvalds if (bmlen > 10) 51081da177e4SLinus Torvalds goto xdr_error; 51091da177e4SLinus Torvalds 5110c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5111c0eae66eSBenny Halevy if (unlikely(!p)) 5112eb72f484SChuck Lever return -EIO; 5113aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 5114aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 51156f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 5116aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 5117aa53ed54SJeff Layton res->attrset[i] = 0; 5118aa53ed54SJeff Layton 51191da177e4SLinus Torvalds return decode_delegation(xdr, res); 51201da177e4SLinus Torvalds xdr_error: 51213110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 51221da177e4SLinus Torvalds return -EIO; 51231da177e4SLinus Torvalds } 51241da177e4SLinus Torvalds 51251da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 51261da177e4SLinus Torvalds { 51271da177e4SLinus Torvalds int status; 51281da177e4SLinus Torvalds 51291da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 5130c1d51931STrond Myklebust if (status != -EIO) 5131c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 513207d30434SBenny Halevy if (!status) 513393b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 51341da177e4SLinus Torvalds return status; 51351da177e4SLinus Torvalds } 51361da177e4SLinus Torvalds 51371da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 51381da177e4SLinus Torvalds { 51391da177e4SLinus Torvalds int status; 51401da177e4SLinus Torvalds 51411da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 5142c1d51931STrond Myklebust if (status != -EIO) 5143c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 514407d30434SBenny Halevy if (!status) 514593b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 51461da177e4SLinus Torvalds return status; 51471da177e4SLinus Torvalds } 51481da177e4SLinus Torvalds 51491da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 51501da177e4SLinus Torvalds { 51511da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 51521da177e4SLinus Torvalds } 51531da177e4SLinus Torvalds 51541da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 51551da177e4SLinus Torvalds { 51561da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 51571da177e4SLinus Torvalds } 51581da177e4SLinus Torvalds 51599137bdf3SAnna Schumaker static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, 51609137bdf3SAnna Schumaker struct nfs_pgio_res *res) 51611da177e4SLinus Torvalds { 51628687b63aSAl Viro __be32 *p; 516364bd577eSTrond Myklebust uint32_t count, eof, recvd; 51641da177e4SLinus Torvalds int status; 51651da177e4SLinus Torvalds 51661da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 51671da177e4SLinus Torvalds if (status) 51681da177e4SLinus Torvalds return status; 5169c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5170c0eae66eSBenny Halevy if (unlikely(!p)) 5171eb72f484SChuck Lever return -EIO; 51726f723f77SBenny Halevy eof = be32_to_cpup(p++); 5173cccddf4fSBenny Halevy count = be32_to_cpup(p); 517464bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 51751da177e4SLinus Torvalds if (count > recvd) { 5176fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 51771da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 51781da177e4SLinus Torvalds count = recvd; 51791da177e4SLinus Torvalds eof = 0; 51801da177e4SLinus Torvalds } 51811da177e4SLinus Torvalds res->eof = eof; 51821da177e4SLinus Torvalds res->count = count; 51831da177e4SLinus Torvalds return 0; 51841da177e4SLinus Torvalds } 51851da177e4SLinus Torvalds 51861da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 51871da177e4SLinus Torvalds { 5188bcecff77SChuck Lever int status; 5189cd93710eSChuck Lever __be32 verf[2]; 51901da177e4SLinus Torvalds 51911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 5192db942bbdSBenny Halevy if (!status) 5193db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 5194db942bbdSBenny Halevy if (unlikely(status)) 51951da177e4SLinus Torvalds return status; 5196cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 519744109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 5198cd93710eSChuck Lever __func__, verf[0], verf[1]); 519964bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 52001da177e4SLinus Torvalds } 52011da177e4SLinus Torvalds 52021da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 52031da177e4SLinus Torvalds { 52041da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 5205bcecff77SChuck Lever u32 len, recvd; 52068687b63aSAl Viro __be32 *p; 52071da177e4SLinus Torvalds int status; 52081da177e4SLinus Torvalds 52091da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 52101da177e4SLinus Torvalds if (status) 52111da177e4SLinus Torvalds return status; 52121da177e4SLinus Torvalds 52131da177e4SLinus Torvalds /* Convert length of symlink */ 5214c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5215c0eae66eSBenny Halevy if (unlikely(!p)) 5216eb72f484SChuck Lever return -EIO; 5217cccddf4fSBenny Halevy len = be32_to_cpup(p); 52181da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 5219fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 52201da177e4SLinus Torvalds return -ENAMETOOLONG; 52211da177e4SLinus Torvalds } 522264bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 52231da177e4SLinus Torvalds if (recvd < len) { 5224fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 52251da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 52261da177e4SLinus Torvalds return -EIO; 52271da177e4SLinus Torvalds } 52281da177e4SLinus Torvalds /* 52291da177e4SLinus Torvalds * The XDR encode routine has set things up so that 52301da177e4SLinus Torvalds * the link text will be copied directly into the 52311da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 52321da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 52331da177e4SLinus Torvalds * null-termination). 52341da177e4SLinus Torvalds */ 5235b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 52361da177e4SLinus Torvalds return 0; 52371da177e4SLinus Torvalds } 52381da177e4SLinus Torvalds 52391da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 52401da177e4SLinus Torvalds { 52411da177e4SLinus Torvalds int status; 52421da177e4SLinus Torvalds 52431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 52441da177e4SLinus Torvalds if (status) 52451da177e4SLinus Torvalds goto out; 52461da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 52471da177e4SLinus Torvalds out: 52481da177e4SLinus Torvalds return status; 52491da177e4SLinus Torvalds } 52501da177e4SLinus Torvalds 52511da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 52521da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 52531da177e4SLinus Torvalds { 52541da177e4SLinus Torvalds int status; 52551da177e4SLinus Torvalds 52561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 52571da177e4SLinus Torvalds if (status) 52581da177e4SLinus Torvalds goto out; 52591da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 52601da177e4SLinus Torvalds goto out; 52611da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 52621da177e4SLinus Torvalds out: 52631da177e4SLinus Torvalds return status; 52641da177e4SLinus Torvalds } 52651da177e4SLinus Torvalds 52661da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 52671da177e4SLinus Torvalds { 52681da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 52691da177e4SLinus Torvalds } 52701da177e4SLinus Torvalds 527156ae19f3STrond Myklebust static int 527256ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 527356ae19f3STrond Myklebust { 527456ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 527556ae19f3STrond Myklebust } 527656ae19f3STrond Myklebust 5277029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5278bf118a34SAndy Adamson struct nfs_getaclres *res) 5279029d105eSJ. Bruce Fields { 5280256e48bbSTrond Myklebust unsigned int savep; 5281029d105eSJ. Bruce Fields uint32_t attrlen, 5282dae100c2SFred Isaman bitmap[3] = {0}; 5283029d105eSJ. Bruce Fields int status; 5284cff298c7STrond Myklebust unsigned int pg_offset; 5285029d105eSJ. Bruce Fields 5286bf118a34SAndy Adamson res->acl_len = 0; 5287029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5288029d105eSJ. Bruce Fields goto out; 52895a006899SSachin Prabhu 5290519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5291519d3959STrond Myklebust 5292cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5293cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 52945a006899SSachin Prabhu 5295029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5296029d105eSJ. Bruce Fields goto out; 5297029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5298029d105eSJ. Bruce Fields goto out; 5299029d105eSJ. Bruce Fields 5300029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5301029d105eSJ. Bruce Fields return -EIO; 5302029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5303029d105eSJ. Bruce Fields 5304bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5305bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5306bf118a34SAndy Adamson * variable length bitmaps.*/ 5307cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5308519d3959STrond Myklebust res->acl_len = attrlen; 53091f1ea6c2STrond Myklebust 53101f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 53111f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 53121f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 53131f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5314519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5315cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5316029d105eSJ. Bruce Fields } 53178c233cf9SJ. Bruce Fields } else 53188c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5319029d105eSJ. Bruce Fields 5320029d105eSJ. Bruce Fields out: 5321029d105eSJ. Bruce Fields return status; 5322029d105eSJ. Bruce Fields } 5323029d105eSJ. Bruce Fields 53241da177e4SLinus Torvalds static int 53251da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 53261da177e4SLinus Torvalds { 53271da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 53281da177e4SLinus Torvalds } 53291da177e4SLinus Torvalds 53309e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 53311da177e4SLinus Torvalds { 53321da177e4SLinus Torvalds int status; 53331da177e4SLinus Torvalds 53341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 53351da177e4SLinus Torvalds if (status) 53361da177e4SLinus Torvalds return status; 533737c88763STrond Myklebust if (decode_bitmap4(xdr, NULL, 0) >= 0) 53381da177e4SLinus Torvalds return 0; 5339c0eae66eSBenny Halevy return -EIO; 53401da177e4SLinus Torvalds } 53411da177e4SLinus Torvalds 5342bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 53431da177e4SLinus Torvalds { 53448687b63aSAl Viro __be32 *p; 53451da177e4SLinus Torvalds uint32_t opnum; 53461da177e4SLinus Torvalds int32_t nfserr; 53471da177e4SLinus Torvalds 5348c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5349c0eae66eSBenny Halevy if (unlikely(!p)) 5350eb72f484SChuck Lever return -EIO; 53516f723f77SBenny Halevy opnum = be32_to_cpup(p++); 53521da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5353fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 53541da177e4SLinus Torvalds " %d\n", opnum); 53551da177e4SLinus Torvalds return -EIO; 53561da177e4SLinus Torvalds } 5357cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 53581da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5359c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5360c0eae66eSBenny Halevy if (unlikely(!p)) 5361eb72f484SChuck Lever return -EIO; 5362bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5363bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 53641da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 53651da177e4SLinus Torvalds uint32_t len; 53661da177e4SLinus Torvalds 53671da177e4SLinus Torvalds /* skip netid string */ 5368c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5369c0eae66eSBenny Halevy if (unlikely(!p)) 5370eb72f484SChuck Lever return -EIO; 5371cccddf4fSBenny Halevy len = be32_to_cpup(p); 5372c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5373c0eae66eSBenny Halevy if (unlikely(!p)) 5374eb72f484SChuck Lever return -EIO; 53751da177e4SLinus Torvalds 53761da177e4SLinus Torvalds /* skip uaddr string */ 5377c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5378c0eae66eSBenny Halevy if (unlikely(!p)) 5379eb72f484SChuck Lever return -EIO; 5380cccddf4fSBenny Halevy len = be32_to_cpup(p); 5381c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5382c0eae66eSBenny Halevy if (unlikely(!p)) 5383eb72f484SChuck Lever return -EIO; 53841da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 53851da177e4SLinus Torvalds } else 5386856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 53871da177e4SLinus Torvalds 53881da177e4SLinus Torvalds return 0; 53891da177e4SLinus Torvalds } 53901da177e4SLinus Torvalds 53911da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 53921da177e4SLinus Torvalds { 53931da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 53941da177e4SLinus Torvalds } 53951da177e4SLinus Torvalds 53969137bdf3SAnna Schumaker static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res) 53971da177e4SLinus Torvalds { 53988687b63aSAl Viro __be32 *p; 53991da177e4SLinus Torvalds int status; 54001da177e4SLinus Torvalds 54011da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 54021da177e4SLinus Torvalds if (status) 54031da177e4SLinus Torvalds return status; 54041da177e4SLinus Torvalds 54052f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5406c0eae66eSBenny Halevy if (unlikely(!p)) 5407eb72f484SChuck Lever return -EIO; 54086f723f77SBenny Halevy res->count = be32_to_cpup(p++); 54096f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 54102f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 54111da177e4SLinus Torvalds } 54121da177e4SLinus Torvalds 54131da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 54141da177e4SLinus Torvalds { 54151da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 54161da177e4SLinus Torvalds } 54171da177e4SLinus Torvalds 5418fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5419fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 54205a5ea0d4SBryan Schumaker { 5421fb15b26fSChuck Lever u32 oid_len; 54225a5ea0d4SBryan Schumaker __be32 *p; 54235a5ea0d4SBryan Schumaker 54245a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54255a5ea0d4SBryan Schumaker if (unlikely(!p)) 5426eb72f484SChuck Lever return -EIO; 5427fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5428fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 5429eb72f484SChuck Lever return -EINVAL; 54305a5ea0d4SBryan Schumaker 5431fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 54325a5ea0d4SBryan Schumaker if (unlikely(!p)) 5433eb72f484SChuck Lever return -EIO; 5434fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5435fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 54365a5ea0d4SBryan Schumaker 54375a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 54385a5ea0d4SBryan Schumaker if (unlikely(!p)) 5439eb72f484SChuck Lever return -EIO; 5440fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5441fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 54425a5ea0d4SBryan Schumaker 54435a5ea0d4SBryan Schumaker return 0; 54445a5ea0d4SBryan Schumaker } 54455a5ea0d4SBryan Schumaker 544631e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 54475a5ea0d4SBryan Schumaker { 5448fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5449fb15b26fSChuck Lever unsigned int i, num_flavors; 54505a5ea0d4SBryan Schumaker int status; 54515a5ea0d4SBryan Schumaker __be32 *p; 54525a5ea0d4SBryan Schumaker 54535a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54545a5ea0d4SBryan Schumaker if (unlikely(!p)) 5455eb72f484SChuck Lever return -EIO; 54565a5ea0d4SBryan Schumaker 5457c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5458c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5459c3dfc280SBryan Schumaker 5460c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 54615a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5462c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 54635a5ea0d4SBryan Schumaker break; 54645a5ea0d4SBryan Schumaker 54655a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54665a5ea0d4SBryan Schumaker if (unlikely(!p)) 5467eb72f484SChuck Lever return -EIO; 54685a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 54695a5ea0d4SBryan Schumaker 54705a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5471613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5472613e901eSBryan Schumaker if (status) 5473613e901eSBryan Schumaker goto out; 54745a5ea0d4SBryan Schumaker } 5475c3dfc280SBryan Schumaker res->flavors->num_flavors++; 54765a5ea0d4SBryan Schumaker } 54775a5ea0d4SBryan Schumaker 547831e4dda4SBryan Schumaker status = 0; 5479613e901eSBryan Schumaker out: 5480613e901eSBryan Schumaker return status; 54815a5ea0d4SBryan Schumaker } 54825a5ea0d4SBryan Schumaker 548331e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 548431e4dda4SBryan Schumaker { 548531e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 548631e4dda4SBryan Schumaker if (status) 548731e4dda4SBryan Schumaker return status; 548831e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 548931e4dda4SBryan Schumaker } 549031e4dda4SBryan Schumaker 549199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 549231e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 549331e4dda4SBryan Schumaker { 549431e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 549531e4dda4SBryan Schumaker if (status) 549631e4dda4SBryan Schumaker return status; 549731e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 549831e4dda4SBryan Schumaker } 549931e4dda4SBryan Schumaker 55002031cd1aSWeston Andros Adamson static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 55012031cd1aSWeston Andros Adamson { 55022031cd1aSWeston Andros Adamson __be32 *p; 55032031cd1aSWeston Andros Adamson uint32_t bitmap_words; 55042031cd1aSWeston Andros Adamson unsigned int i; 55052031cd1aSWeston Andros Adamson 55062031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 55074edabfd7SPan Bian if (!p) 55084edabfd7SPan Bian return -EIO; 55092031cd1aSWeston Andros Adamson bitmap_words = be32_to_cpup(p++); 55102031cd1aSWeston Andros Adamson if (bitmap_words > NFS4_OP_MAP_NUM_WORDS) 55112031cd1aSWeston Andros Adamson return -EIO; 55122031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4 * bitmap_words); 55132031cd1aSWeston Andros Adamson for (i = 0; i < bitmap_words; i++) 55142031cd1aSWeston Andros Adamson op_map->u.words[i] = be32_to_cpup(p++); 55152031cd1aSWeston Andros Adamson 55162031cd1aSWeston Andros Adamson return 0; 55172031cd1aSWeston Andros Adamson } 55182031cd1aSWeston Andros Adamson 551999fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 552099fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 552199fe60d0SBenny Halevy { 552299fe60d0SBenny Halevy __be32 *p; 552399fe60d0SBenny Halevy uint32_t dummy; 55242460ba57SBenny Halevy char *dummy_str; 552599fe60d0SBenny Halevy int status; 55267d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 552799fe60d0SBenny Halevy 552899fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 552999fe60d0SBenny Halevy if (status) 553099fe60d0SBenny Halevy return status; 553199fe60d0SBenny Halevy 5532c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5533c0eae66eSBenny Halevy if (unlikely(!p)) 5534eb72f484SChuck Lever return -EIO; 553532b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5536c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5537c0eae66eSBenny Halevy if (unlikely(!p)) 5538eb72f484SChuck Lever return -EIO; 553932b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 554032b01310STrond Myklebust res->flags = be32_to_cpup(p++); 554199fe60d0SBenny Halevy 55422031cd1aSWeston Andros Adamson res->state_protect.how = be32_to_cpup(p); 55432031cd1aSWeston Andros Adamson switch (res->state_protect.how) { 55442031cd1aSWeston Andros Adamson case SP4_NONE: 55452031cd1aSWeston Andros Adamson break; 55462031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 55472031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.enforce); 55482031cd1aSWeston Andros Adamson if (status) 55492031cd1aSWeston Andros Adamson return status; 55502031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.allow); 55512031cd1aSWeston Andros Adamson if (status) 55522031cd1aSWeston Andros Adamson return status; 55532031cd1aSWeston Andros Adamson break; 55542031cd1aSWeston Andros Adamson default: 55552031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 555699fe60d0SBenny Halevy return -EIO; 55572031cd1aSWeston Andros Adamson } 555899fe60d0SBenny Halevy 5559acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5560c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5561c0eae66eSBenny Halevy if (unlikely(!p)) 5562eb72f484SChuck Lever return -EIO; 5563acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 556499fe60d0SBenny Halevy 5565acdeb69dSChuck Lever /* server_owner4.so_major_id */ 55662460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55672460ba57SBenny Halevy if (unlikely(status)) 55682460ba57SBenny Halevy return status; 5569acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5570acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 557178fe0f41SWeston Andros Adamson 5572acdeb69dSChuck Lever /* server_scope4 */ 5573acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5574acdeb69dSChuck Lever if (unlikely(status)) 5575acdeb69dSChuck Lever return status; 557678fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 557778fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 557878fe0f41SWeston Andros Adamson 55797d2ed9acSWeston Andros Adamson /* Implementation Id */ 55807d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 55817d2ed9acSWeston Andros Adamson if (unlikely(!p)) 5582eb72f484SChuck Lever return -EIO; 55837d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 55847d2ed9acSWeston Andros Adamson 55857d2ed9acSWeston Andros Adamson if (impl_id_count) { 55867d2ed9acSWeston Andros Adamson /* nii_domain */ 55872460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55882460ba57SBenny Halevy if (unlikely(status)) 55892460ba57SBenny Halevy return status; 55907d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 559199fe60d0SBenny Halevy 55927d2ed9acSWeston Andros Adamson /* nii_name */ 55937d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55947d2ed9acSWeston Andros Adamson if (unlikely(status)) 55957d2ed9acSWeston Andros Adamson return status; 55967d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 55977d2ed9acSWeston Andros Adamson 55987d2ed9acSWeston Andros Adamson /* nii_date */ 55997d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 56007d2ed9acSWeston Andros Adamson if (unlikely(!p)) 5601eb72f484SChuck Lever return -EIO; 56027d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 56037d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 56047d2ed9acSWeston Andros Adamson 56057d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 56067d2ed9acSWeston Andros Adamson } 560799fe60d0SBenny Halevy return 0; 560899fe60d0SBenny Halevy } 5609fc931582SAndy Adamson 5610fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5611fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5612fc931582SAndy Adamson { 5613fc931582SAndy Adamson __be32 *p; 5614c9c30dd5SBenny Halevy u32 nr_attrs, val; 5615fc931582SAndy Adamson 5616c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5617c0eae66eSBenny Halevy if (unlikely(!p)) 5618eb72f484SChuck Lever return -EIO; 5619c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5620c9c30dd5SBenny Halevy if (val) 5621c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 56226f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 56236f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 56246f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 56256f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 56266f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5627cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5628fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5629a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5630a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5631fc931582SAndy Adamson return -EINVAL; 5632fc931582SAndy Adamson } 5633c0eae66eSBenny Halevy if (nr_attrs == 1) { 5634c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5635c0eae66eSBenny Halevy if (unlikely(!p)) 5636eb72f484SChuck Lever return -EIO; 5637c0eae66eSBenny Halevy } 5638fc931582SAndy Adamson return 0; 5639fc931582SAndy Adamson } 5640fc931582SAndy Adamson 5641e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5642e78291e4SBenny Halevy { 5643e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5644fc931582SAndy Adamson } 5645fc931582SAndy Adamson 56467c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 56477c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 56487c44f1aeSWeston Andros Adamson { 56497c44f1aeSWeston Andros Adamson __be32 *p; 56507c44f1aeSWeston Andros Adamson int status; 56517c44f1aeSWeston Andros Adamson 56527c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 56537c44f1aeSWeston Andros Adamson if (!status) 565471a097c6STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 56557c44f1aeSWeston Andros Adamson if (unlikely(status)) 56567c44f1aeSWeston Andros Adamson return status; 56577c44f1aeSWeston Andros Adamson 56587c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 56597c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 56607c44f1aeSWeston Andros Adamson if (unlikely(!p)) 5661eb72f484SChuck Lever return -EIO; 56627c44f1aeSWeston Andros Adamson 56637c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 56647c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 56657c44f1aeSWeston Andros Adamson return -EIO; 56667c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 56677c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 56687c44f1aeSWeston Andros Adamson else 56697c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 56707c44f1aeSWeston Andros Adamson 56717c44f1aeSWeston Andros Adamson return 0; 56727c44f1aeSWeston Andros Adamson } 56737c44f1aeSWeston Andros Adamson 5674fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5675fc931582SAndy Adamson struct nfs41_create_session_res *res) 5676fc931582SAndy Adamson { 5677fc931582SAndy Adamson __be32 *p; 5678fc931582SAndy Adamson int status; 5679fc931582SAndy Adamson 5680fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5681e78291e4SBenny Halevy if (!status) 568279969dd1STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 5683e78291e4SBenny Halevy if (unlikely(status)) 5684fc931582SAndy Adamson return status; 5685fc931582SAndy Adamson 5686fc931582SAndy Adamson /* seqid, flags */ 5687c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5688c0eae66eSBenny Halevy if (unlikely(!p)) 5689eb72f484SChuck Lever return -EIO; 569079969dd1STrond Myklebust res->seqid = be32_to_cpup(p++); 569179969dd1STrond Myklebust res->flags = be32_to_cpup(p); 5692fc931582SAndy Adamson 5693fc931582SAndy Adamson /* Channel attributes */ 569479969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->fc_attrs); 5695fc931582SAndy Adamson if (!status) 569679969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->bc_attrs); 5697fc931582SAndy Adamson return status; 5698fc931582SAndy Adamson } 56990f3e66c6SAndy Adamson 57000f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 57010f3e66c6SAndy Adamson { 57020f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 57030f3e66c6SAndy Adamson } 570418019753SRicardo Labiaga 570566245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 570666245539STrond Myklebust { 570766245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 570866245539STrond Myklebust } 570966245539STrond Myklebust 571018019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 571118019753SRicardo Labiaga { 571218019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 571318019753SRicardo Labiaga } 571499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 571599fe60d0SBenny Halevy 57169b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 57179b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 57189b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 57199b7b9fccSAndy Adamson { 57209b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5721e3725ec0STrond Myklebust struct nfs4_session *session; 5722fc01cea9SAndy Adamson struct nfs4_sessionid id; 5723fc01cea9SAndy Adamson u32 dummy; 5724fc01cea9SAndy Adamson int status; 5725fc01cea9SAndy Adamson __be32 *p; 5726fc01cea9SAndy Adamson 5727e3725ec0STrond Myklebust if (res->sr_slot == NULL) 57289b7b9fccSAndy Adamson return 0; 57293bd2384aSChuck Lever if (!res->sr_slot->table->session) 57303bd2384aSChuck Lever return 0; 57319b7b9fccSAndy Adamson 5732fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5733e78291e4SBenny Halevy if (!status) 5734e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5735e78291e4SBenny Halevy if (unlikely(status)) 5736fc01cea9SAndy Adamson goto out_err; 57379b7b9fccSAndy Adamson 5738fc01cea9SAndy Adamson /* 5739fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5740fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5741fc01cea9SAndy Adamson */ 5742fdcb4577STrond Myklebust status = -EREMOTEIO; 5743e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5744fc01cea9SAndy Adamson 5745e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5746fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5747fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5748fc01cea9SAndy Adamson goto out_err; 5749fc01cea9SAndy Adamson } 5750e78291e4SBenny Halevy 5751c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5752c0eae66eSBenny Halevy if (unlikely(!p)) 5753c0eae66eSBenny Halevy goto out_overflow; 5754e78291e4SBenny Halevy 5755fc01cea9SAndy Adamson /* seqid */ 57566f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5757dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5758fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5759fc01cea9SAndy Adamson goto out_err; 5760fc01cea9SAndy Adamson } 5761fc01cea9SAndy Adamson /* slot id */ 57626f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5763df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5764fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5765fc01cea9SAndy Adamson goto out_err; 5766fc01cea9SAndy Adamson } 5767da0507b7STrond Myklebust /* highest slot id */ 5768da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5769464ee9f9STrond Myklebust /* target highest slot id */ 5770464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 57710629e370SAlexandros Batsakis /* result flags */ 57720629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5773fc01cea9SAndy Adamson status = 0; 5774fc01cea9SAndy Adamson out_err: 5775fc01cea9SAndy Adamson res->sr_status = status; 5776fc01cea9SAndy Adamson return status; 5777c0eae66eSBenny Halevy out_overflow: 5778c0eae66eSBenny Halevy status = -EIO; 5779c0eae66eSBenny Halevy goto out_err; 5780fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 57819b7b9fccSAndy Adamson return 0; 5782fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 57839b7b9fccSAndy Adamson } 57849b7b9fccSAndy Adamson 5785b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 578693b717fdSTrond Myklebust static int decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 578793b717fdSTrond Myklebust { 578893b717fdSTrond Myklebust stateid->type = NFS4_LAYOUT_STATEID_TYPE; 578993b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 579093b717fdSTrond Myklebust } 579193b717fdSTrond Myklebust 5792b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 57934e590803STrond Myklebust struct nfs4_getdeviceinfo_res *res) 5794b1f69b75SAndy Adamson { 57954e590803STrond Myklebust struct pnfs_device *pdev = res->pdev; 5796b1f69b75SAndy Adamson __be32 *p; 5797b1f69b75SAndy Adamson uint32_t len, type; 5798b1f69b75SAndy Adamson int status; 5799b1f69b75SAndy Adamson 5800b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5801b1f69b75SAndy Adamson if (status) { 5802b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5803b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5804b1f69b75SAndy Adamson if (unlikely(!p)) 5805eb72f484SChuck Lever return -EIO; 5806b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5807b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5808b1f69b75SAndy Adamson __func__, pdev->mincount); 5809b1f69b75SAndy Adamson } 5810b1f69b75SAndy Adamson return status; 5811b1f69b75SAndy Adamson } 5812b1f69b75SAndy Adamson 5813b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5814b1f69b75SAndy Adamson if (unlikely(!p)) 5815eb72f484SChuck Lever return -EIO; 5816b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5817b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5818b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5819b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5820b1f69b75SAndy Adamson return -EINVAL; 5821b1f69b75SAndy Adamson } 5822b1f69b75SAndy Adamson /* 5823b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5824b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5825b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5826b1f69b75SAndy Adamson */ 5827b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 582813fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 5829eb72f484SChuck Lever return -EIO; 5830b1f69b75SAndy Adamson 5831b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5832b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5833b1f69b75SAndy Adamson if (unlikely(!p)) 5834eb72f484SChuck Lever return -EIO; 5835b1f69b75SAndy Adamson len = be32_to_cpup(p); 5836b1f69b75SAndy Adamson if (len) { 5837ead00597SChuck Lever uint32_t i; 5838b1f69b75SAndy Adamson 5839b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5840b1f69b75SAndy Adamson if (unlikely(!p)) 5841eb72f484SChuck Lever return -EIO; 584284c9dee3SChristoph Hellwig 58434e590803STrond Myklebust res->notification = be32_to_cpup(p++); 584484c9dee3SChristoph Hellwig for (i = 1; i < len; i++) { 584584c9dee3SChristoph Hellwig if (be32_to_cpup(p++)) { 584684c9dee3SChristoph Hellwig dprintk("%s: unsupported notification\n", 5847b1f69b75SAndy Adamson __func__); 5848b1f69b75SAndy Adamson return -EIO; 5849b1f69b75SAndy Adamson } 5850b1f69b75SAndy Adamson } 5851b1f69b75SAndy Adamson } 5852b1f69b75SAndy Adamson return 0; 5853b1f69b75SAndy Adamson } 5854b1f69b75SAndy Adamson 5855b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5856b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5857b1f69b75SAndy Adamson { 5858b1f69b75SAndy Adamson __be32 *p; 5859b1f69b75SAndy Adamson int status; 5860b1f69b75SAndy Adamson u32 layout_count; 586164bd577eSTrond Myklebust u32 recvd; 5862b1f69b75SAndy Adamson 5863b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5864b1f69b75SAndy Adamson if (status) 5865808ba32aSFred Isaman goto out; 5866ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5867b1f69b75SAndy Adamson if (unlikely(!p)) 5868b1f69b75SAndy Adamson goto out_overflow; 5869ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 587093b717fdSTrond Myklebust decode_layout_stateid(xdr, &res->stateid); 5871ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5872ea9d23f5STrond Myklebust if (unlikely(!p)) 5873ea9d23f5STrond Myklebust goto out_overflow; 5874b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5875b1f69b75SAndy Adamson if (!layout_count) { 5876b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5877b1f69b75SAndy Adamson __func__); 5878808ba32aSFred Isaman status = -EINVAL; 5879808ba32aSFred Isaman goto out; 5880b1f69b75SAndy Adamson } 5881b1f69b75SAndy Adamson 588235124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5883b1f69b75SAndy Adamson if (unlikely(!p)) 5884b1f69b75SAndy Adamson goto out_overflow; 5885b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5886b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5887b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5888b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 588935124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5890b1f69b75SAndy Adamson 5891b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5892b1f69b75SAndy Adamson __func__, 5893b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5894b1f69b75SAndy Adamson (unsigned long)res->range.length, 5895b1f69b75SAndy Adamson res->range.iomode, 5896b1f69b75SAndy Adamson res->type, 589735124a09SWeston Andros Adamson res->layoutp->len); 5898b1f69b75SAndy Adamson 589964bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 590035124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 590135124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 590235124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 590335124a09SWeston Andros Adamson res->layoutp->len, recvd); 5904808ba32aSFred Isaman status = -EINVAL; 5905808ba32aSFred Isaman goto out; 590635124a09SWeston Andros Adamson } 590735124a09SWeston Andros Adamson 5908b1f69b75SAndy Adamson if (layout_count > 1) { 5909b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5910b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5911b1f69b75SAndy Adamson * the client may see a response that is less than the 5912b1f69b75SAndy Adamson * minimum it requested. 5913b1f69b75SAndy Adamson */ 5914b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5915b1f69b75SAndy Adamson __func__, layout_count); 5916b1f69b75SAndy Adamson } 5917b1f69b75SAndy Adamson 5918808ba32aSFred Isaman out: 5919808ba32aSFred Isaman res->status = status; 5920808ba32aSFred Isaman return status; 5921b1f69b75SAndy Adamson out_overflow: 5922808ba32aSFred Isaman status = -EIO; 5923808ba32aSFred Isaman goto out; 5924b1f69b75SAndy Adamson } 5925863a3c6cSAndy Adamson 5926cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5927cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5928cbe82603SBenny Halevy { 5929cbe82603SBenny Halevy __be32 *p; 5930cbe82603SBenny Halevy int status; 5931cbe82603SBenny Halevy 5932cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5933cbe82603SBenny Halevy if (status) 5934cbe82603SBenny Halevy return status; 5935cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5936cbe82603SBenny Halevy if (unlikely(!p)) 5937eb72f484SChuck Lever return -EIO; 5938cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5939cbe82603SBenny Halevy if (res->lrs_present) 594093b717fdSTrond Myklebust status = decode_layout_stateid(xdr, &res->stateid); 5941fcd8843cSTrond Myklebust else 5942fcd8843cSTrond Myklebust nfs4_stateid_copy(&res->stateid, &invalid_stateid); 5943cbe82603SBenny Halevy return status; 5944cbe82603SBenny Halevy } 5945cbe82603SBenny Halevy 5946863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5947863a3c6cSAndy Adamson struct rpc_rqst *req, 5948863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5949863a3c6cSAndy Adamson { 5950863a3c6cSAndy Adamson __be32 *p; 5951863a3c6cSAndy Adamson __u32 sizechanged; 5952863a3c6cSAndy Adamson int status; 5953863a3c6cSAndy Adamson 5954863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5955db29c089SAndy Adamson res->status = status; 5956863a3c6cSAndy Adamson if (status) 5957863a3c6cSAndy Adamson return status; 5958863a3c6cSAndy Adamson 5959863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5960863a3c6cSAndy Adamson if (unlikely(!p)) 5961eb72f484SChuck Lever return -EIO; 5962863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5963863a3c6cSAndy Adamson 5964863a3c6cSAndy Adamson if (sizechanged) { 5965863a3c6cSAndy Adamson /* throw away new size */ 5966863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5967863a3c6cSAndy Adamson if (unlikely(!p)) 5968eb72f484SChuck Lever return -EIO; 5969863a3c6cSAndy Adamson } 5970863a3c6cSAndy Adamson return 0; 5971863a3c6cSAndy Adamson } 59727d974794SBryan Schumaker 59737d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 59747d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 59757d974794SBryan Schumaker { 59767d974794SBryan Schumaker __be32 *p; 59777d974794SBryan Schumaker int status; 59787d974794SBryan Schumaker int num_res; 59797d974794SBryan Schumaker 59807d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 59817d974794SBryan Schumaker if (status) 59827d974794SBryan Schumaker return status; 59837d974794SBryan Schumaker 59847d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 59857d974794SBryan Schumaker if (unlikely(!p)) 5986eb72f484SChuck Lever return -EIO; 59877d974794SBryan Schumaker num_res = be32_to_cpup(p++); 59887d974794SBryan Schumaker if (num_res != 1) 5989eb72f484SChuck Lever return -EIO; 59907d974794SBryan Schumaker 59917d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 59927d974794SBryan Schumaker if (unlikely(!p)) 5993eb72f484SChuck Lever return -EIO; 59947d974794SBryan Schumaker res->status = be32_to_cpup(p++); 59951cab0652SBryan Schumaker 59961cab0652SBryan Schumaker return status; 59977d974794SBryan Schumaker } 59989aeda35fSBryan Schumaker 59999aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 60009aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 60019aeda35fSBryan Schumaker { 60029f79fb48SAndy Adamson res->status = decode_op_hdr(xdr, OP_FREE_STATEID); 60039aeda35fSBryan Schumaker return res->status; 60049aeda35fSBryan Schumaker } 6005cf805165STrond Myklebust #else 6006cf805165STrond Myklebust static inline 6007cf805165STrond Myklebust int decode_layoutreturn(struct xdr_stream *xdr, 6008cf805165STrond Myklebust struct nfs4_layoutreturn_res *res) 6009cf805165STrond Myklebust { 6010cf805165STrond Myklebust return 0; 6011cf805165STrond Myklebust } 601256f487f8SFred Isaman 601356f487f8SFred Isaman static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 601456f487f8SFred Isaman struct nfs4_layoutget_res *res) 601556f487f8SFred Isaman { 601656f487f8SFred Isaman return 0; 601756f487f8SFred Isaman } 601856f487f8SFred Isaman 6019b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 6020b1f69b75SAndy Adamson 60211da177e4SLinus Torvalds /* 602249c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 602349c2559eSBenny Halevy */ 602449c2559eSBenny Halevy 602549c2559eSBenny Halevy /* 60261da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 60271da177e4SLinus Torvalds */ 6028bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 6029bf269551SChuck Lever struct xdr_stream *xdr, 6030fc016483SChristoph Hellwig void *data) 60311da177e4SLinus Torvalds { 6032fc016483SChristoph Hellwig struct nfs_closeres *res = data; 60331da177e4SLinus Torvalds struct compound_hdr hdr; 60341da177e4SLinus Torvalds int status; 60351da177e4SLinus Torvalds 6036bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60371da177e4SLinus Torvalds if (status) 60381da177e4SLinus Torvalds goto out; 6039bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60409b7b9fccSAndy Adamson if (status) 60419b7b9fccSAndy Adamson goto out; 6042bf269551SChuck Lever status = decode_putfh(xdr); 60431da177e4SLinus Torvalds if (status) 60441da177e4SLinus Torvalds goto out; 6045b6808145STrond Myklebust if (res->lr_res) { 6046b6808145STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 6047b6808145STrond Myklebust res->lr_ret = status; 6048b6808145STrond Myklebust if (status) 6049b6808145STrond Myklebust goto out; 6050b6808145STrond Myklebust } 6051bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 60521da177e4SLinus Torvalds out: 60531da177e4SLinus Torvalds return status; 60541da177e4SLinus Torvalds } 60551da177e4SLinus Torvalds 60561da177e4SLinus Torvalds /* 60571da177e4SLinus Torvalds * Decode ACCESS response 60581da177e4SLinus Torvalds */ 6059bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6060fc016483SChristoph Hellwig void *data) 60611da177e4SLinus Torvalds { 6062fc016483SChristoph Hellwig struct nfs4_accessres *res = data; 60631da177e4SLinus Torvalds struct compound_hdr hdr; 60641da177e4SLinus Torvalds int status; 60651da177e4SLinus Torvalds 6066bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60679b7b9fccSAndy Adamson if (status) 60689b7b9fccSAndy Adamson goto out; 6069bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60709b7b9fccSAndy Adamson if (status) 60711da177e4SLinus Torvalds goto out; 6072bf269551SChuck Lever status = decode_putfh(xdr); 607376b32999STrond Myklebust if (status != 0) 607476b32999STrond Myklebust goto out; 60756168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 607676b32999STrond Myklebust if (status != 0) 607776b32999STrond Myklebust goto out; 60788bcbe7d9STrond Myklebust if (res->fattr) 60796926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60801da177e4SLinus Torvalds out: 60811da177e4SLinus Torvalds return status; 60821da177e4SLinus Torvalds } 60831da177e4SLinus Torvalds 60841da177e4SLinus Torvalds /* 60851da177e4SLinus Torvalds * Decode LOOKUP response 60861da177e4SLinus Torvalds */ 6087bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6088fc016483SChristoph Hellwig void *data) 60891da177e4SLinus Torvalds { 6090fc016483SChristoph Hellwig struct nfs4_lookup_res *res = data; 60911da177e4SLinus Torvalds struct compound_hdr hdr; 60921da177e4SLinus Torvalds int status; 60931da177e4SLinus Torvalds 6094bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60959b7b9fccSAndy Adamson if (status) 60969b7b9fccSAndy Adamson goto out; 6097bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60989b7b9fccSAndy Adamson if (status) 60991da177e4SLinus Torvalds goto out; 6100bf269551SChuck Lever status = decode_putfh(xdr); 6101bf269551SChuck Lever if (status) 61021da177e4SLinus Torvalds goto out; 6103bf269551SChuck Lever status = decode_lookup(xdr); 6104bf269551SChuck Lever if (status) 61051da177e4SLinus Torvalds goto out; 6106bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6107bf269551SChuck Lever if (status) 61081da177e4SLinus Torvalds goto out; 6109aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 61101da177e4SLinus Torvalds out: 61111da177e4SLinus Torvalds return status; 61121da177e4SLinus Torvalds } 61131da177e4SLinus Torvalds 61141da177e4SLinus Torvalds /* 61155b5faaf6SJeff Layton * Decode LOOKUPP response 61165b5faaf6SJeff Layton */ 61175b5faaf6SJeff Layton static int nfs4_xdr_dec_lookupp(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 61185b5faaf6SJeff Layton void *data) 61195b5faaf6SJeff Layton { 61205b5faaf6SJeff Layton struct nfs4_lookupp_res *res = data; 61215b5faaf6SJeff Layton struct compound_hdr hdr; 61225b5faaf6SJeff Layton int status; 61235b5faaf6SJeff Layton 61245b5faaf6SJeff Layton status = decode_compound_hdr(xdr, &hdr); 61255b5faaf6SJeff Layton if (status) 61265b5faaf6SJeff Layton goto out; 61275b5faaf6SJeff Layton status = decode_sequence(xdr, &res->seq_res, rqstp); 61285b5faaf6SJeff Layton if (status) 61295b5faaf6SJeff Layton goto out; 61305b5faaf6SJeff Layton status = decode_putfh(xdr); 61315b5faaf6SJeff Layton if (status) 61325b5faaf6SJeff Layton goto out; 61335b5faaf6SJeff Layton status = decode_lookupp(xdr); 61345b5faaf6SJeff Layton if (status) 61355b5faaf6SJeff Layton goto out; 61365b5faaf6SJeff Layton status = decode_getfh(xdr, res->fh); 61375b5faaf6SJeff Layton if (status) 61385b5faaf6SJeff Layton goto out; 61395b5faaf6SJeff Layton status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 61405b5faaf6SJeff Layton out: 61415b5faaf6SJeff Layton return status; 61425b5faaf6SJeff Layton } 61435b5faaf6SJeff Layton 61445b5faaf6SJeff Layton /* 61451da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 61461da177e4SLinus Torvalds */ 6147bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 6148bf269551SChuck Lever struct xdr_stream *xdr, 6149fc016483SChristoph Hellwig void *data) 61501da177e4SLinus Torvalds { 6151fc016483SChristoph Hellwig struct nfs4_lookup_res *res = data; 61521da177e4SLinus Torvalds struct compound_hdr hdr; 61531da177e4SLinus Torvalds int status; 61541da177e4SLinus Torvalds 6155bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61569b7b9fccSAndy Adamson if (status) 61579b7b9fccSAndy Adamson goto out; 6158bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61599b7b9fccSAndy Adamson if (status) 61601da177e4SLinus Torvalds goto out; 6161bf269551SChuck Lever status = decode_putrootfh(xdr); 6162bf269551SChuck Lever if (status) 61631da177e4SLinus Torvalds goto out; 6164bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6165bf269551SChuck Lever if (status == 0) 6166aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, 6167aa9c2669SDavid Quigley res->label, res->server); 61681da177e4SLinus Torvalds out: 61691da177e4SLinus Torvalds return status; 61701da177e4SLinus Torvalds } 61711da177e4SLinus Torvalds 61721da177e4SLinus Torvalds /* 61731da177e4SLinus Torvalds * Decode REMOVE response 61741da177e4SLinus Torvalds */ 6175bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6176fc016483SChristoph Hellwig void *data) 61771da177e4SLinus Torvalds { 6178fc016483SChristoph Hellwig struct nfs_removeres *res = data; 61791da177e4SLinus Torvalds struct compound_hdr hdr; 61801da177e4SLinus Torvalds int status; 61811da177e4SLinus Torvalds 6182bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61839b7b9fccSAndy Adamson if (status) 61849b7b9fccSAndy Adamson goto out; 6185bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61869b7b9fccSAndy Adamson if (status) 61871da177e4SLinus Torvalds goto out; 6188bf269551SChuck Lever status = decode_putfh(xdr); 6189bf269551SChuck Lever if (status) 619016e42959STrond Myklebust goto out; 6191bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 61921da177e4SLinus Torvalds out: 61931da177e4SLinus Torvalds return status; 61941da177e4SLinus Torvalds } 61951da177e4SLinus Torvalds 61961da177e4SLinus Torvalds /* 61971da177e4SLinus Torvalds * Decode RENAME response 61981da177e4SLinus Torvalds */ 6199bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6200fc016483SChristoph Hellwig void *data) 62011da177e4SLinus Torvalds { 6202fc016483SChristoph Hellwig struct nfs_renameres *res = data; 62031da177e4SLinus Torvalds struct compound_hdr hdr; 62041da177e4SLinus Torvalds int status; 62051da177e4SLinus Torvalds 6206bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62079b7b9fccSAndy Adamson if (status) 62089b7b9fccSAndy Adamson goto out; 6209bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62109b7b9fccSAndy Adamson if (status) 62111da177e4SLinus Torvalds goto out; 6212bf269551SChuck Lever status = decode_putfh(xdr); 6213bf269551SChuck Lever if (status) 62141da177e4SLinus Torvalds goto out; 6215bf269551SChuck Lever status = decode_savefh(xdr); 6216bf269551SChuck Lever if (status) 62171da177e4SLinus Torvalds goto out; 6218bf269551SChuck Lever status = decode_putfh(xdr); 6219bf269551SChuck Lever if (status) 62201da177e4SLinus Torvalds goto out; 6221bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 62221da177e4SLinus Torvalds out: 62231da177e4SLinus Torvalds return status; 62241da177e4SLinus Torvalds } 62251da177e4SLinus Torvalds 62261da177e4SLinus Torvalds /* 62271da177e4SLinus Torvalds * Decode LINK response 62281da177e4SLinus Torvalds */ 6229bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6230fc016483SChristoph Hellwig void *data) 62311da177e4SLinus Torvalds { 6232fc016483SChristoph Hellwig struct nfs4_link_res *res = data; 62331da177e4SLinus Torvalds struct compound_hdr hdr; 62341da177e4SLinus Torvalds int status; 62351da177e4SLinus Torvalds 6236bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62379b7b9fccSAndy Adamson if (status) 62389b7b9fccSAndy Adamson goto out; 6239bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62409b7b9fccSAndy Adamson if (status) 62411da177e4SLinus Torvalds goto out; 6242bf269551SChuck Lever status = decode_putfh(xdr); 6243bf269551SChuck Lever if (status) 62441da177e4SLinus Torvalds goto out; 6245bf269551SChuck Lever status = decode_savefh(xdr); 6246bf269551SChuck Lever if (status) 62471da177e4SLinus Torvalds goto out; 6248bf269551SChuck Lever status = decode_putfh(xdr); 6249bf269551SChuck Lever if (status) 62501da177e4SLinus Torvalds goto out; 6251bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6252bf269551SChuck Lever if (status) 625391ba2eeeSTrond Myklebust goto out; 625491ba2eeeSTrond Myklebust /* 625591ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 625691ba2eeeSTrond Myklebust * filehandle. 625791ba2eeeSTrond Myklebust */ 6258bf269551SChuck Lever status = decode_restorefh(xdr); 6259bf269551SChuck Lever if (status) 626091ba2eeeSTrond Myklebust goto out; 6261aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62621da177e4SLinus Torvalds out: 62631da177e4SLinus Torvalds return status; 62641da177e4SLinus Torvalds } 62651da177e4SLinus Torvalds 62661da177e4SLinus Torvalds /* 62671da177e4SLinus Torvalds * Decode CREATE response 62681da177e4SLinus Torvalds */ 6269bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6270fc016483SChristoph Hellwig void *data) 62711da177e4SLinus Torvalds { 6272fc016483SChristoph Hellwig struct nfs4_create_res *res = data; 62731da177e4SLinus Torvalds struct compound_hdr hdr; 62741da177e4SLinus Torvalds int status; 62751da177e4SLinus Torvalds 6276bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62779b7b9fccSAndy Adamson if (status) 62789b7b9fccSAndy Adamson goto out; 6279bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62809b7b9fccSAndy Adamson if (status) 62811da177e4SLinus Torvalds goto out; 6282bf269551SChuck Lever status = decode_putfh(xdr); 6283bf269551SChuck Lever if (status) 62841da177e4SLinus Torvalds goto out; 6285bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6286bf269551SChuck Lever if (status) 62871da177e4SLinus Torvalds goto out; 6288bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6289bf269551SChuck Lever if (status) 62901da177e4SLinus Torvalds goto out; 6291aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62921da177e4SLinus Torvalds out: 62931da177e4SLinus Torvalds return status; 62941da177e4SLinus Torvalds } 62951da177e4SLinus Torvalds 62961da177e4SLinus Torvalds /* 62971da177e4SLinus Torvalds * Decode SYMLINK response 62981da177e4SLinus Torvalds */ 6299bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6300fc016483SChristoph Hellwig void *res) 63011da177e4SLinus Torvalds { 6302bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 63031da177e4SLinus Torvalds } 63041da177e4SLinus Torvalds 63051da177e4SLinus Torvalds /* 63061da177e4SLinus Torvalds * Decode GETATTR response 63071da177e4SLinus Torvalds */ 6308bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6309fc016483SChristoph Hellwig void *data) 63101da177e4SLinus Torvalds { 6311fc016483SChristoph Hellwig struct nfs4_getattr_res *res = data; 63121da177e4SLinus Torvalds struct compound_hdr hdr; 63131da177e4SLinus Torvalds int status; 63141da177e4SLinus Torvalds 6315bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63161da177e4SLinus Torvalds if (status) 63171da177e4SLinus Torvalds goto out; 6318bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63199b7b9fccSAndy Adamson if (status) 63209b7b9fccSAndy Adamson goto out; 6321bf269551SChuck Lever status = decode_putfh(xdr); 63221da177e4SLinus Torvalds if (status) 63231da177e4SLinus Torvalds goto out; 6324aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 63251da177e4SLinus Torvalds out: 63261da177e4SLinus Torvalds return status; 63271da177e4SLinus Torvalds } 63281da177e4SLinus Torvalds 632923ec6965SJ. Bruce Fields /* 633023ec6965SJ. Bruce Fields * Encode an SETACL request 633123ec6965SJ. Bruce Fields */ 63329f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 6333fcc85819SChristoph Hellwig const void *data) 633423ec6965SJ. Bruce Fields { 6335fcc85819SChristoph Hellwig const struct nfs_setaclargs *args = data; 633623ec6965SJ. Bruce Fields struct compound_hdr hdr = { 633766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 633823ec6965SJ. Bruce Fields }; 633923ec6965SJ. Bruce Fields 63409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 63419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 63429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 63439f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6344d017931cSAndy Adamson encode_nops(&hdr); 634523ec6965SJ. Bruce Fields } 634605d564feSAndy Adamson 634723ec6965SJ. Bruce Fields /* 634823ec6965SJ. Bruce Fields * Decode SETACL response 634923ec6965SJ. Bruce Fields */ 635023ec6965SJ. Bruce Fields static int 6351bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6352fc016483SChristoph Hellwig void *data) 635323ec6965SJ. Bruce Fields { 6354fc016483SChristoph Hellwig struct nfs_setaclres *res = data; 635523ec6965SJ. Bruce Fields struct compound_hdr hdr; 635623ec6965SJ. Bruce Fields int status; 635723ec6965SJ. Bruce Fields 6358bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 635923ec6965SJ. Bruce Fields if (status) 636023ec6965SJ. Bruce Fields goto out; 6361bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63629b7b9fccSAndy Adamson if (status) 63639b7b9fccSAndy Adamson goto out; 6364bf269551SChuck Lever status = decode_putfh(xdr); 636523ec6965SJ. Bruce Fields if (status) 636623ec6965SJ. Bruce Fields goto out; 6367bf269551SChuck Lever status = decode_setattr(xdr); 636823ec6965SJ. Bruce Fields out: 636923ec6965SJ. Bruce Fields return status; 637023ec6965SJ. Bruce Fields } 63711da177e4SLinus Torvalds 63721da177e4SLinus Torvalds /* 6373029d105eSJ. Bruce Fields * Decode GETACL response 6374029d105eSJ. Bruce Fields */ 6375029d105eSJ. Bruce Fields static int 6376bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6377fc016483SChristoph Hellwig void *data) 6378029d105eSJ. Bruce Fields { 6379fc016483SChristoph Hellwig struct nfs_getaclres *res = data; 6380029d105eSJ. Bruce Fields struct compound_hdr hdr; 6381029d105eSJ. Bruce Fields int status; 6382029d105eSJ. Bruce Fields 6383331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6384331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6385331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6386331818f1STrond Myklebust } 6387bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6388029d105eSJ. Bruce Fields if (status) 6389029d105eSJ. Bruce Fields goto out; 6390bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63919b7b9fccSAndy Adamson if (status) 63929b7b9fccSAndy Adamson goto out; 6393bf269551SChuck Lever status = decode_putfh(xdr); 6394029d105eSJ. Bruce Fields if (status) 6395029d105eSJ. Bruce Fields goto out; 6396bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6397029d105eSJ. Bruce Fields 6398029d105eSJ. Bruce Fields out: 6399029d105eSJ. Bruce Fields return status; 6400029d105eSJ. Bruce Fields } 6401029d105eSJ. Bruce Fields 6402029d105eSJ. Bruce Fields /* 64031da177e4SLinus Torvalds * Decode CLOSE response 64041da177e4SLinus Torvalds */ 6405bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6406fc016483SChristoph Hellwig void *data) 64071da177e4SLinus Torvalds { 6408fc016483SChristoph Hellwig struct nfs_closeres *res = data; 64091da177e4SLinus Torvalds struct compound_hdr hdr; 64101da177e4SLinus Torvalds int status; 64111da177e4SLinus Torvalds 6412bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64131da177e4SLinus Torvalds if (status) 64141da177e4SLinus Torvalds goto out; 6415bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64169b7b9fccSAndy Adamson if (status) 64179b7b9fccSAndy Adamson goto out; 6418bf269551SChuck Lever status = decode_putfh(xdr); 64191da177e4SLinus Torvalds if (status) 64201da177e4SLinus Torvalds goto out; 6421cf805165STrond Myklebust if (res->lr_res) { 6422cf805165STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 6423cf805165STrond Myklebust res->lr_ret = status; 6424cf805165STrond Myklebust if (status) 6425cf805165STrond Myklebust goto out; 6426cf805165STrond Myklebust } 6427d8d84983STrond Myklebust if (res->fattr != NULL) { 6428d8d84983STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6429516a6af6STrond Myklebust if (status != 0) 6430516a6af6STrond Myklebust goto out; 6431d8d84983STrond Myklebust } 6432d8d84983STrond Myklebust status = decode_close(xdr, res); 64331da177e4SLinus Torvalds out: 64341da177e4SLinus Torvalds return status; 64351da177e4SLinus Torvalds } 64361da177e4SLinus Torvalds 64371da177e4SLinus Torvalds /* 64381da177e4SLinus Torvalds * Decode OPEN response 64391da177e4SLinus Torvalds */ 6440bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6441fc016483SChristoph Hellwig void *data) 64421da177e4SLinus Torvalds { 6443fc016483SChristoph Hellwig struct nfs_openres *res = data; 64441da177e4SLinus Torvalds struct compound_hdr hdr; 64451da177e4SLinus Torvalds int status; 64461da177e4SLinus Torvalds 6447bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64481da177e4SLinus Torvalds if (status) 64491da177e4SLinus Torvalds goto out; 6450bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64519b7b9fccSAndy Adamson if (status) 64529b7b9fccSAndy Adamson goto out; 6453bf269551SChuck Lever status = decode_putfh(xdr); 64541da177e4SLinus Torvalds if (status) 64551da177e4SLinus Torvalds goto out; 6456bf269551SChuck Lever status = decode_open(xdr, res); 64571da177e4SLinus Torvalds if (status) 64581da177e4SLinus Torvalds goto out; 645901913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 646001913b49SWeston Andros Adamson if (status) 64611da177e4SLinus Torvalds goto out; 6462ae2bb032SWeston Andros Adamson if (res->access_request) 64636168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 6464aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server); 646556f487f8SFred Isaman if (res->lg_res) 646656f487f8SFred Isaman decode_layoutget(xdr, rqstp, res->lg_res); 64671da177e4SLinus Torvalds out: 64681da177e4SLinus Torvalds return status; 64691da177e4SLinus Torvalds } 64701da177e4SLinus Torvalds 64711da177e4SLinus Torvalds /* 64721da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 64731da177e4SLinus Torvalds */ 6474bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6475bf269551SChuck Lever struct xdr_stream *xdr, 6476fc016483SChristoph Hellwig void *data) 64771da177e4SLinus Torvalds { 6478fc016483SChristoph Hellwig struct nfs_open_confirmres *res = data; 64791da177e4SLinus Torvalds struct compound_hdr hdr; 64801da177e4SLinus Torvalds int status; 64811da177e4SLinus Torvalds 6482bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64831da177e4SLinus Torvalds if (status) 64841da177e4SLinus Torvalds goto out; 6485bf269551SChuck Lever status = decode_putfh(xdr); 64861da177e4SLinus Torvalds if (status) 64871da177e4SLinus Torvalds goto out; 6488bf269551SChuck Lever status = decode_open_confirm(xdr, res); 64891da177e4SLinus Torvalds out: 64901da177e4SLinus Torvalds return status; 64911da177e4SLinus Torvalds } 64921da177e4SLinus Torvalds 64931da177e4SLinus Torvalds /* 64941da177e4SLinus Torvalds * Decode OPEN response 64951da177e4SLinus Torvalds */ 6496bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6497bf269551SChuck Lever struct xdr_stream *xdr, 6498fc016483SChristoph Hellwig void *data) 64991da177e4SLinus Torvalds { 6500fc016483SChristoph Hellwig struct nfs_openres *res = data; 65011da177e4SLinus Torvalds struct compound_hdr hdr; 65021da177e4SLinus Torvalds int status; 65031da177e4SLinus Torvalds 6504bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65051da177e4SLinus Torvalds if (status) 65061da177e4SLinus Torvalds goto out; 6507bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65089b7b9fccSAndy Adamson if (status) 65099b7b9fccSAndy Adamson goto out; 6510bf269551SChuck Lever status = decode_putfh(xdr); 65111da177e4SLinus Torvalds if (status) 65121da177e4SLinus Torvalds goto out; 6513bf269551SChuck Lever status = decode_open(xdr, res); 6514864472e9STrond Myklebust if (status) 6515864472e9STrond Myklebust goto out; 6516ae2bb032SWeston Andros Adamson if (res->access_request) 65176168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 65186926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 651956f487f8SFred Isaman if (res->lg_res) 652056f487f8SFred Isaman decode_layoutget(xdr, rqstp, res->lg_res); 65211da177e4SLinus Torvalds out: 65221da177e4SLinus Torvalds return status; 65231da177e4SLinus Torvalds } 65241da177e4SLinus Torvalds 65251da177e4SLinus Torvalds /* 65261da177e4SLinus Torvalds * Decode SETATTR response 65271da177e4SLinus Torvalds */ 6528bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6529bf269551SChuck Lever struct xdr_stream *xdr, 6530fc016483SChristoph Hellwig void *data) 65311da177e4SLinus Torvalds { 6532fc016483SChristoph Hellwig struct nfs_setattrres *res = data; 65331da177e4SLinus Torvalds struct compound_hdr hdr; 65341da177e4SLinus Torvalds int status; 65351da177e4SLinus Torvalds 6536bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65371da177e4SLinus Torvalds if (status) 65381da177e4SLinus Torvalds goto out; 6539bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65409b7b9fccSAndy Adamson if (status) 65419b7b9fccSAndy Adamson goto out; 6542bf269551SChuck Lever status = decode_putfh(xdr); 65431da177e4SLinus Torvalds if (status) 65441da177e4SLinus Torvalds goto out; 6545bf269551SChuck Lever status = decode_setattr(xdr); 65461da177e4SLinus Torvalds if (status) 65471da177e4SLinus Torvalds goto out; 6548aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 65491da177e4SLinus Torvalds out: 65501da177e4SLinus Torvalds return status; 65511da177e4SLinus Torvalds } 65521da177e4SLinus Torvalds 65531da177e4SLinus Torvalds /* 65541da177e4SLinus Torvalds * Decode LOCK response 65551da177e4SLinus Torvalds */ 6556bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6557fc016483SChristoph Hellwig void *data) 65581da177e4SLinus Torvalds { 6559fc016483SChristoph Hellwig struct nfs_lock_res *res = data; 65601da177e4SLinus Torvalds struct compound_hdr hdr; 65611da177e4SLinus Torvalds int status; 65621da177e4SLinus Torvalds 6563bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65641da177e4SLinus Torvalds if (status) 65651da177e4SLinus Torvalds goto out; 6566bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65679b7b9fccSAndy Adamson if (status) 65689b7b9fccSAndy Adamson goto out; 6569bf269551SChuck Lever status = decode_putfh(xdr); 65701da177e4SLinus Torvalds if (status) 65711da177e4SLinus Torvalds goto out; 6572bf269551SChuck Lever status = decode_lock(xdr, res); 65731da177e4SLinus Torvalds out: 65741da177e4SLinus Torvalds return status; 65751da177e4SLinus Torvalds } 65761da177e4SLinus Torvalds 65771da177e4SLinus Torvalds /* 65781da177e4SLinus Torvalds * Decode LOCKT response 65791da177e4SLinus Torvalds */ 6580bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6581fc016483SChristoph Hellwig void *data) 65821da177e4SLinus Torvalds { 6583fc016483SChristoph Hellwig struct nfs_lockt_res *res = data; 65841da177e4SLinus Torvalds struct compound_hdr hdr; 65851da177e4SLinus Torvalds int status; 65861da177e4SLinus Torvalds 6587bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65881da177e4SLinus Torvalds if (status) 65891da177e4SLinus Torvalds goto out; 6590bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65919b7b9fccSAndy Adamson if (status) 65929b7b9fccSAndy Adamson goto out; 6593bf269551SChuck Lever status = decode_putfh(xdr); 65941da177e4SLinus Torvalds if (status) 65951da177e4SLinus Torvalds goto out; 6596bf269551SChuck Lever status = decode_lockt(xdr, res); 65971da177e4SLinus Torvalds out: 65981da177e4SLinus Torvalds return status; 65991da177e4SLinus Torvalds } 66001da177e4SLinus Torvalds 66011da177e4SLinus Torvalds /* 66021da177e4SLinus Torvalds * Decode LOCKU response 66031da177e4SLinus Torvalds */ 6604bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6605fc016483SChristoph Hellwig void *data) 66061da177e4SLinus Torvalds { 6607fc016483SChristoph Hellwig struct nfs_locku_res *res = data; 66081da177e4SLinus Torvalds struct compound_hdr hdr; 66091da177e4SLinus Torvalds int status; 66101da177e4SLinus Torvalds 6611bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66121da177e4SLinus Torvalds if (status) 66131da177e4SLinus Torvalds goto out; 6614bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66159b7b9fccSAndy Adamson if (status) 66169b7b9fccSAndy Adamson goto out; 6617bf269551SChuck Lever status = decode_putfh(xdr); 66181da177e4SLinus Torvalds if (status) 66191da177e4SLinus Torvalds goto out; 6620bf269551SChuck Lever status = decode_locku(xdr, res); 66211da177e4SLinus Torvalds out: 66221da177e4SLinus Torvalds return status; 66231da177e4SLinus Torvalds } 66241da177e4SLinus Torvalds 6625bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6626bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6627d3c7b7ccSTrond Myklebust { 6628d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6629d3c7b7ccSTrond Myklebust int status; 6630d3c7b7ccSTrond Myklebust 6631bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6632d3c7b7ccSTrond Myklebust if (!status) 6633bf269551SChuck Lever status = decode_release_lockowner(xdr); 6634d3c7b7ccSTrond Myklebust return status; 6635d3c7b7ccSTrond Myklebust } 6636d3c7b7ccSTrond Myklebust 66371da177e4SLinus Torvalds /* 66381da177e4SLinus Torvalds * Decode READLINK response 66391da177e4SLinus Torvalds */ 6640bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6641bf269551SChuck Lever struct xdr_stream *xdr, 6642fc016483SChristoph Hellwig void *data) 66431da177e4SLinus Torvalds { 6644fc016483SChristoph Hellwig struct nfs4_readlink_res *res = data; 66451da177e4SLinus Torvalds struct compound_hdr hdr; 66461da177e4SLinus Torvalds int status; 66471da177e4SLinus Torvalds 6648bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66491da177e4SLinus Torvalds if (status) 66501da177e4SLinus Torvalds goto out; 6651bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66529b7b9fccSAndy Adamson if (status) 66539b7b9fccSAndy Adamson goto out; 6654bf269551SChuck Lever status = decode_putfh(xdr); 66551da177e4SLinus Torvalds if (status) 66561da177e4SLinus Torvalds goto out; 6657bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 66581da177e4SLinus Torvalds out: 66591da177e4SLinus Torvalds return status; 66601da177e4SLinus Torvalds } 66611da177e4SLinus Torvalds 66621da177e4SLinus Torvalds /* 66631da177e4SLinus Torvalds * Decode READDIR response 66641da177e4SLinus Torvalds */ 6665bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6666fc016483SChristoph Hellwig void *data) 66671da177e4SLinus Torvalds { 6668fc016483SChristoph Hellwig struct nfs4_readdir_res *res = data; 66691da177e4SLinus Torvalds struct compound_hdr hdr; 66701da177e4SLinus Torvalds int status; 66711da177e4SLinus Torvalds 6672bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66731da177e4SLinus Torvalds if (status) 66741da177e4SLinus Torvalds goto out; 6675bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66769b7b9fccSAndy Adamson if (status) 66779b7b9fccSAndy Adamson goto out; 6678bf269551SChuck Lever status = decode_putfh(xdr); 66791da177e4SLinus Torvalds if (status) 66801da177e4SLinus Torvalds goto out; 6681bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 66821da177e4SLinus Torvalds out: 66831da177e4SLinus Torvalds return status; 66841da177e4SLinus Torvalds } 66851da177e4SLinus Torvalds 66861da177e4SLinus Torvalds /* 66871da177e4SLinus Torvalds * Decode Read response 66881da177e4SLinus Torvalds */ 6689bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6690fc016483SChristoph Hellwig void *data) 66911da177e4SLinus Torvalds { 6692fc016483SChristoph Hellwig struct nfs_pgio_res *res = data; 66931da177e4SLinus Torvalds struct compound_hdr hdr; 66941da177e4SLinus Torvalds int status; 66951da177e4SLinus Torvalds 6696bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6697aabff4ddSPeng Tao res->op_status = hdr.status; 66981da177e4SLinus Torvalds if (status) 66991da177e4SLinus Torvalds goto out; 6700bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67019b7b9fccSAndy Adamson if (status) 67029b7b9fccSAndy Adamson goto out; 6703bf269551SChuck Lever status = decode_putfh(xdr); 67041da177e4SLinus Torvalds if (status) 67051da177e4SLinus Torvalds goto out; 6706bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 67071da177e4SLinus Torvalds if (!status) 67081da177e4SLinus Torvalds status = res->count; 67091da177e4SLinus Torvalds out: 67101da177e4SLinus Torvalds return status; 67111da177e4SLinus Torvalds } 67121da177e4SLinus Torvalds 67131da177e4SLinus Torvalds /* 67141da177e4SLinus Torvalds * Decode WRITE response 67151da177e4SLinus Torvalds */ 6716bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6717fc016483SChristoph Hellwig void *data) 67181da177e4SLinus Torvalds { 6719fc016483SChristoph Hellwig struct nfs_pgio_res *res = data; 67201da177e4SLinus Torvalds struct compound_hdr hdr; 67211da177e4SLinus Torvalds int status; 67221da177e4SLinus Torvalds 6723bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6724aabff4ddSPeng Tao res->op_status = hdr.status; 67251da177e4SLinus Torvalds if (status) 67261da177e4SLinus Torvalds goto out; 6727bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67289b7b9fccSAndy Adamson if (status) 67299b7b9fccSAndy Adamson goto out; 6730bf269551SChuck Lever status = decode_putfh(xdr); 67311da177e4SLinus Torvalds if (status) 67321da177e4SLinus Torvalds goto out; 6733bf269551SChuck Lever status = decode_write(xdr, res); 67344f9838c7STrond Myklebust if (status) 67354f9838c7STrond Myklebust goto out; 67367ffd1064SFred Isaman if (res->fattr) 67376926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 67381da177e4SLinus Torvalds if (!status) 67391da177e4SLinus Torvalds status = res->count; 67401da177e4SLinus Torvalds out: 67411da177e4SLinus Torvalds return status; 67421da177e4SLinus Torvalds } 67431da177e4SLinus Torvalds 67441da177e4SLinus Torvalds /* 67451da177e4SLinus Torvalds * Decode COMMIT response 67461da177e4SLinus Torvalds */ 6747bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6748fc016483SChristoph Hellwig void *data) 67491da177e4SLinus Torvalds { 6750fc016483SChristoph Hellwig struct nfs_commitres *res = data; 67511da177e4SLinus Torvalds struct compound_hdr hdr; 67521da177e4SLinus Torvalds int status; 67531da177e4SLinus Torvalds 6754bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6755aabff4ddSPeng Tao res->op_status = hdr.status; 67561da177e4SLinus Torvalds if (status) 67571da177e4SLinus Torvalds goto out; 6758bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67599b7b9fccSAndy Adamson if (status) 67609b7b9fccSAndy Adamson goto out; 6761bf269551SChuck Lever status = decode_putfh(xdr); 67621da177e4SLinus Torvalds if (status) 67631da177e4SLinus Torvalds goto out; 6764bf269551SChuck Lever status = decode_commit(xdr, res); 67651da177e4SLinus Torvalds out: 67661da177e4SLinus Torvalds return status; 67671da177e4SLinus Torvalds } 67681da177e4SLinus Torvalds 67691da177e4SLinus Torvalds /* 67708b173218SRicardo Labiaga * Decode FSINFO response 67711da177e4SLinus Torvalds */ 6772bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 6773fc016483SChristoph Hellwig void *data) 67741da177e4SLinus Torvalds { 6775fc016483SChristoph Hellwig struct nfs4_fsinfo_res *res = data; 67761da177e4SLinus Torvalds struct compound_hdr hdr; 67771da177e4SLinus Torvalds int status; 67781da177e4SLinus Torvalds 6779bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67801da177e4SLinus Torvalds if (!status) 6781bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67829b7b9fccSAndy Adamson if (!status) 6783bf269551SChuck Lever status = decode_putfh(xdr); 67841da177e4SLinus Torvalds if (!status) 6785bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 67861da177e4SLinus Torvalds return status; 67871da177e4SLinus Torvalds } 67881da177e4SLinus Torvalds 67891da177e4SLinus Torvalds /* 67908b173218SRicardo Labiaga * Decode PATHCONF response 67911da177e4SLinus Torvalds */ 6792bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6793fc016483SChristoph Hellwig void *data) 67941da177e4SLinus Torvalds { 6795fc016483SChristoph Hellwig struct nfs4_pathconf_res *res = data; 67961da177e4SLinus Torvalds struct compound_hdr hdr; 67971da177e4SLinus Torvalds int status; 67981da177e4SLinus Torvalds 6799bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68001da177e4SLinus Torvalds if (!status) 6801bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68029b7b9fccSAndy Adamson if (!status) 6803bf269551SChuck Lever status = decode_putfh(xdr); 68041da177e4SLinus Torvalds if (!status) 6805bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 68061da177e4SLinus Torvalds return status; 68071da177e4SLinus Torvalds } 68081da177e4SLinus Torvalds 68091da177e4SLinus Torvalds /* 68108b173218SRicardo Labiaga * Decode STATFS response 68111da177e4SLinus Torvalds */ 6812bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 6813fc016483SChristoph Hellwig void *data) 68141da177e4SLinus Torvalds { 6815fc016483SChristoph Hellwig struct nfs4_statfs_res *res = data; 68161da177e4SLinus Torvalds struct compound_hdr hdr; 68171da177e4SLinus Torvalds int status; 68181da177e4SLinus Torvalds 6819bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68201da177e4SLinus Torvalds if (!status) 6821bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68229b7b9fccSAndy Adamson if (!status) 6823bf269551SChuck Lever status = decode_putfh(xdr); 68241da177e4SLinus Torvalds if (!status) 6825bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 68261da177e4SLinus Torvalds return status; 68271da177e4SLinus Torvalds } 68281da177e4SLinus Torvalds 68291da177e4SLinus Torvalds /* 68308b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 68311da177e4SLinus Torvalds */ 6832bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6833bf269551SChuck Lever struct xdr_stream *xdr, 6834fc016483SChristoph Hellwig void *data) 68351da177e4SLinus Torvalds { 6836fc016483SChristoph Hellwig struct nfs4_server_caps_res *res = data; 68371da177e4SLinus Torvalds struct compound_hdr hdr; 68381da177e4SLinus Torvalds int status; 68391da177e4SLinus Torvalds 6840bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68419b7b9fccSAndy Adamson if (status) 68429b7b9fccSAndy Adamson goto out; 6843bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68449b7b9fccSAndy Adamson if (status) 68451da177e4SLinus Torvalds goto out; 6846bf269551SChuck Lever status = decode_putfh(xdr); 6847bf269551SChuck Lever if (status) 68481da177e4SLinus Torvalds goto out; 6849bf269551SChuck Lever status = decode_server_caps(xdr, res); 68501da177e4SLinus Torvalds out: 68511da177e4SLinus Torvalds return status; 68521da177e4SLinus Torvalds } 68531da177e4SLinus Torvalds 68541da177e4SLinus Torvalds /* 68551da177e4SLinus Torvalds * Decode RENEW response 68561da177e4SLinus Torvalds */ 6857bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6858bf269551SChuck Lever void *__unused) 68591da177e4SLinus Torvalds { 68601da177e4SLinus Torvalds struct compound_hdr hdr; 68611da177e4SLinus Torvalds int status; 68621da177e4SLinus Torvalds 6863bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68641da177e4SLinus Torvalds if (!status) 6865bf269551SChuck Lever status = decode_renew(xdr); 68661da177e4SLinus Torvalds return status; 68671da177e4SLinus Torvalds } 68681da177e4SLinus Torvalds 68691da177e4SLinus Torvalds /* 68708b173218SRicardo Labiaga * Decode SETCLIENTID response 68711da177e4SLinus Torvalds */ 6872bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6873bf269551SChuck Lever struct xdr_stream *xdr, 6874fc016483SChristoph Hellwig void *data) 68751da177e4SLinus Torvalds { 6876fc016483SChristoph Hellwig struct nfs4_setclientid_res *res = data; 68771da177e4SLinus Torvalds struct compound_hdr hdr; 68781da177e4SLinus Torvalds int status; 68791da177e4SLinus Torvalds 6880bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68811da177e4SLinus Torvalds if (!status) 6882bf269551SChuck Lever status = decode_setclientid(xdr, res); 68831da177e4SLinus Torvalds return status; 68841da177e4SLinus Torvalds } 68851da177e4SLinus Torvalds 68861da177e4SLinus Torvalds /* 68878b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 68881da177e4SLinus Torvalds */ 6889bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6890fc016483SChristoph Hellwig struct xdr_stream *xdr, 6891fc016483SChristoph Hellwig void *data) 68921da177e4SLinus Torvalds { 68931da177e4SLinus Torvalds struct compound_hdr hdr; 68941da177e4SLinus Torvalds int status; 68951da177e4SLinus Torvalds 6896bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68971da177e4SLinus Torvalds if (!status) 6898bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 68991da177e4SLinus Torvalds return status; 69001da177e4SLinus Torvalds } 69011da177e4SLinus Torvalds 69021da177e4SLinus Torvalds /* 69038b173218SRicardo Labiaga * Decode DELEGRETURN response 69041da177e4SLinus Torvalds */ 6905bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6906bf269551SChuck Lever struct xdr_stream *xdr, 6907fc016483SChristoph Hellwig void *data) 69081da177e4SLinus Torvalds { 6909fc016483SChristoph Hellwig struct nfs4_delegreturnres *res = data; 69101da177e4SLinus Torvalds struct compound_hdr hdr; 69111da177e4SLinus Torvalds int status; 69121da177e4SLinus Torvalds 6913bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69149b7b9fccSAndy Adamson if (status) 69159b7b9fccSAndy Adamson goto out; 6916bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 69179b7b9fccSAndy Adamson if (status) 6918fa178f29STrond Myklebust goto out; 6919bf269551SChuck Lever status = decode_putfh(xdr); 6920fa178f29STrond Myklebust if (status != 0) 6921fa178f29STrond Myklebust goto out; 6922586f1c39STrond Myklebust if (res->lr_res) { 6923586f1c39STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 6924586f1c39STrond Myklebust res->lr_ret = status; 6925586f1c39STrond Myklebust if (status) 6926586f1c39STrond Myklebust goto out; 6927586f1c39STrond Myklebust } 69288ac2b422STrond Myklebust if (res->fattr) { 6929e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6930556ae3bbSJeff Layton if (status != 0) 6931556ae3bbSJeff Layton goto out; 69328ac2b422STrond Myklebust } 6933e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6934fa178f29STrond Myklebust out: 69351da177e4SLinus Torvalds return status; 69361da177e4SLinus Torvalds } 69371da177e4SLinus Torvalds 6938683b57b4STrond Myklebust /* 69398b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6940683b57b4STrond Myklebust */ 6941bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6942bf269551SChuck Lever struct xdr_stream *xdr, 6943fc016483SChristoph Hellwig void *data) 6944683b57b4STrond Myklebust { 6945fc016483SChristoph Hellwig struct nfs4_fs_locations_res *res = data; 6946683b57b4STrond Myklebust struct compound_hdr hdr; 6947683b57b4STrond Myklebust int status; 6948683b57b4STrond Myklebust 6949bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69509b7b9fccSAndy Adamson if (status) 69519b7b9fccSAndy Adamson goto out; 6952bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 69539b7b9fccSAndy Adamson if (status) 6954683b57b4STrond Myklebust goto out; 6955bf269551SChuck Lever status = decode_putfh(xdr); 6956bf269551SChuck Lever if (status) 6957683b57b4STrond Myklebust goto out; 6958b03d735bSChuck Lever if (res->migration) { 6959b03d735bSChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6960b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6961b03d735bSChuck Lever &res->fs_locations->fattr, 6962b03d735bSChuck Lever NULL, res->fs_locations, 6963b03d735bSChuck Lever NULL, res->fs_locations->server); 6964b03d735bSChuck Lever if (status) 6965b03d735bSChuck Lever goto out; 6966b03d735bSChuck Lever if (res->renew) 6967b03d735bSChuck Lever status = decode_renew(xdr); 6968b03d735bSChuck Lever } else { 6969bf269551SChuck Lever status = decode_lookup(xdr); 6970bf269551SChuck Lever if (status) 6971683b57b4STrond Myklebust goto out; 6972bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6973b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6974b03d735bSChuck Lever &res->fs_locations->fattr, 69758b7e3f49STrond Myklebust NULL, res->fs_locations, 6976aa9c2669SDavid Quigley NULL, res->fs_locations->server); 6977b03d735bSChuck Lever } 6978683b57b4STrond Myklebust out: 6979683b57b4STrond Myklebust return status; 6980683b57b4STrond Myklebust } 6981683b57b4STrond Myklebust 69825a5ea0d4SBryan Schumaker /* 69835a5ea0d4SBryan Schumaker * Decode SECINFO response 69845a5ea0d4SBryan Schumaker */ 69855a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 69865a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 6987fc016483SChristoph Hellwig void *data) 69885a5ea0d4SBryan Schumaker { 6989fc016483SChristoph Hellwig struct nfs4_secinfo_res *res = data; 69905a5ea0d4SBryan Schumaker struct compound_hdr hdr; 69915a5ea0d4SBryan Schumaker int status; 69925a5ea0d4SBryan Schumaker 69935a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69945a5ea0d4SBryan Schumaker if (status) 69955a5ea0d4SBryan Schumaker goto out; 69965a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69975a5ea0d4SBryan Schumaker if (status) 69985a5ea0d4SBryan Schumaker goto out; 69995a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 70005a5ea0d4SBryan Schumaker if (status) 70015a5ea0d4SBryan Schumaker goto out; 70025a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 70035a5ea0d4SBryan Schumaker out: 70045a5ea0d4SBryan Schumaker return status; 70055a5ea0d4SBryan Schumaker } 70065a5ea0d4SBryan Schumaker 700744c99933SChuck Lever /* 700844c99933SChuck Lever * Decode FSID_PRESENT response 700944c99933SChuck Lever */ 701044c99933SChuck Lever static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp, 701144c99933SChuck Lever struct xdr_stream *xdr, 7012fc016483SChristoph Hellwig void *data) 701344c99933SChuck Lever { 7014fc016483SChristoph Hellwig struct nfs4_fsid_present_res *res = data; 701544c99933SChuck Lever struct compound_hdr hdr; 701644c99933SChuck Lever int status; 701744c99933SChuck Lever 701844c99933SChuck Lever status = decode_compound_hdr(xdr, &hdr); 701944c99933SChuck Lever if (status) 702044c99933SChuck Lever goto out; 702144c99933SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 702244c99933SChuck Lever if (status) 702344c99933SChuck Lever goto out; 702444c99933SChuck Lever status = decode_putfh(xdr); 702544c99933SChuck Lever if (status) 702644c99933SChuck Lever goto out; 702744c99933SChuck Lever status = decode_getfh(xdr, res->fh); 702844c99933SChuck Lever if (status) 702944c99933SChuck Lever goto out; 703044c99933SChuck Lever if (res->renew) 703144c99933SChuck Lever status = decode_renew(xdr); 703244c99933SChuck Lever out: 703344c99933SChuck Lever return status; 703444c99933SChuck Lever } 703544c99933SChuck Lever 703699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 703799fe60d0SBenny Halevy /* 70387c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 70397c44f1aeSWeston Andros Adamson */ 70407c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 70417c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 70427c44f1aeSWeston Andros Adamson void *res) 70437c44f1aeSWeston Andros Adamson { 70447c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 70457c44f1aeSWeston Andros Adamson int status; 70467c44f1aeSWeston Andros Adamson 70477c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 70487c44f1aeSWeston Andros Adamson if (!status) 70497c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 70507c44f1aeSWeston Andros Adamson return status; 70517c44f1aeSWeston Andros Adamson } 70527c44f1aeSWeston Andros Adamson 70537c44f1aeSWeston Andros Adamson /* 70548b173218SRicardo Labiaga * Decode EXCHANGE_ID response 705599fe60d0SBenny Halevy */ 7056bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 7057bf269551SChuck Lever struct xdr_stream *xdr, 705899fe60d0SBenny Halevy void *res) 705999fe60d0SBenny Halevy { 706099fe60d0SBenny Halevy struct compound_hdr hdr; 706199fe60d0SBenny Halevy int status; 706299fe60d0SBenny Halevy 7063bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 706499fe60d0SBenny Halevy if (!status) 7065bf269551SChuck Lever status = decode_exchange_id(xdr, res); 706699fe60d0SBenny Halevy return status; 706799fe60d0SBenny Halevy } 70682050f0ccSAndy Adamson 70692050f0ccSAndy Adamson /* 70708b173218SRicardo Labiaga * Decode CREATE_SESSION response 7071fc931582SAndy Adamson */ 7072bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 7073bf269551SChuck Lever struct xdr_stream *xdr, 7074fc016483SChristoph Hellwig void *res) 7075fc931582SAndy Adamson { 7076fc931582SAndy Adamson struct compound_hdr hdr; 7077fc931582SAndy Adamson int status; 7078fc931582SAndy Adamson 7079bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7080fc931582SAndy Adamson if (!status) 7081bf269551SChuck Lever status = decode_create_session(xdr, res); 7082fc931582SAndy Adamson return status; 7083fc931582SAndy Adamson } 7084fc931582SAndy Adamson 7085fc931582SAndy Adamson /* 70868b173218SRicardo Labiaga * Decode DESTROY_SESSION response 70870f3e66c6SAndy Adamson */ 7088bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 7089bf269551SChuck Lever struct xdr_stream *xdr, 7090bf269551SChuck Lever void *res) 70910f3e66c6SAndy Adamson { 70920f3e66c6SAndy Adamson struct compound_hdr hdr; 70930f3e66c6SAndy Adamson int status; 70940f3e66c6SAndy Adamson 7095bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70960f3e66c6SAndy Adamson if (!status) 7097bf269551SChuck Lever status = decode_destroy_session(xdr, res); 70980f3e66c6SAndy Adamson return status; 70990f3e66c6SAndy Adamson } 71000f3e66c6SAndy Adamson 71010f3e66c6SAndy Adamson /* 710266245539STrond Myklebust * Decode DESTROY_CLIENTID response 710366245539STrond Myklebust */ 710466245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 710566245539STrond Myklebust struct xdr_stream *xdr, 710666245539STrond Myklebust void *res) 710766245539STrond Myklebust { 710866245539STrond Myklebust struct compound_hdr hdr; 710966245539STrond Myklebust int status; 711066245539STrond Myklebust 711166245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 711266245539STrond Myklebust if (!status) 711366245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 711466245539STrond Myklebust return status; 711566245539STrond Myklebust } 711666245539STrond Myklebust 711766245539STrond Myklebust /* 71188b173218SRicardo Labiaga * Decode SEQUENCE response 7119fc01cea9SAndy Adamson */ 7120bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 7121bf269551SChuck Lever struct xdr_stream *xdr, 7122fc016483SChristoph Hellwig void *res) 7123fc01cea9SAndy Adamson { 7124fc01cea9SAndy Adamson struct compound_hdr hdr; 7125fc01cea9SAndy Adamson int status; 7126fc01cea9SAndy Adamson 7127bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7128fc01cea9SAndy Adamson if (!status) 7129bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 7130fc01cea9SAndy Adamson return status; 7131fc01cea9SAndy Adamson } 7132fc01cea9SAndy Adamson 7133fc01cea9SAndy Adamson /* 71348b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 71352050f0ccSAndy Adamson */ 7136bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 7137bf269551SChuck Lever struct xdr_stream *xdr, 7138fc016483SChristoph Hellwig void *data) 71392050f0ccSAndy Adamson { 7140fc016483SChristoph Hellwig struct nfs4_get_lease_time_res *res = data; 71412050f0ccSAndy Adamson struct compound_hdr hdr; 71422050f0ccSAndy Adamson int status; 71432050f0ccSAndy Adamson 7144bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 71452050f0ccSAndy Adamson if (!status) 7146bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 71472050f0ccSAndy Adamson if (!status) 7148bf269551SChuck Lever status = decode_putrootfh(xdr); 71492050f0ccSAndy Adamson if (!status) 7150bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 71512050f0ccSAndy Adamson return status; 71522050f0ccSAndy Adamson } 715318019753SRicardo Labiaga 715418019753SRicardo Labiaga /* 715518019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 715618019753SRicardo Labiaga */ 7157bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 7158bf269551SChuck Lever struct xdr_stream *xdr, 7159fc016483SChristoph Hellwig void *data) 716018019753SRicardo Labiaga { 7161fc016483SChristoph Hellwig struct nfs41_reclaim_complete_res *res = data; 716218019753SRicardo Labiaga struct compound_hdr hdr; 716318019753SRicardo Labiaga int status; 716418019753SRicardo Labiaga 7165bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 716618019753SRicardo Labiaga if (!status) 7167bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 716818019753SRicardo Labiaga if (!status) 71698ee2b78aSHimangi Saraogi status = decode_reclaim_complete(xdr, NULL); 717018019753SRicardo Labiaga return status; 717118019753SRicardo Labiaga } 7172b1f69b75SAndy Adamson 7173b1f69b75SAndy Adamson /* 7174b1f69b75SAndy Adamson * Decode GETDEVINFO response 7175b1f69b75SAndy Adamson */ 7176bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 7177bf269551SChuck Lever struct xdr_stream *xdr, 7178fc016483SChristoph Hellwig void *data) 7179b1f69b75SAndy Adamson { 7180fc016483SChristoph Hellwig struct nfs4_getdeviceinfo_res *res = data; 7181b1f69b75SAndy Adamson struct compound_hdr hdr; 7182b1f69b75SAndy Adamson int status; 7183b1f69b75SAndy Adamson 7184bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7185b1f69b75SAndy Adamson if (status != 0) 7186b1f69b75SAndy Adamson goto out; 7187bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7188b1f69b75SAndy Adamson if (status != 0) 7189b1f69b75SAndy Adamson goto out; 71904e590803STrond Myklebust status = decode_getdeviceinfo(xdr, res); 7191b1f69b75SAndy Adamson out: 7192b1f69b75SAndy Adamson return status; 7193b1f69b75SAndy Adamson } 7194b1f69b75SAndy Adamson 7195b1f69b75SAndy Adamson /* 7196b1f69b75SAndy Adamson * Decode LAYOUTGET response 7197b1f69b75SAndy Adamson */ 7198bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 7199bf269551SChuck Lever struct xdr_stream *xdr, 7200fc016483SChristoph Hellwig void *data) 7201b1f69b75SAndy Adamson { 7202fc016483SChristoph Hellwig struct nfs4_layoutget_res *res = data; 7203b1f69b75SAndy Adamson struct compound_hdr hdr; 7204b1f69b75SAndy Adamson int status; 7205b1f69b75SAndy Adamson 7206bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7207b1f69b75SAndy Adamson if (status) 7208b1f69b75SAndy Adamson goto out; 7209bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7210b1f69b75SAndy Adamson if (status) 7211b1f69b75SAndy Adamson goto out; 7212bf269551SChuck Lever status = decode_putfh(xdr); 7213b1f69b75SAndy Adamson if (status) 7214b1f69b75SAndy Adamson goto out; 7215bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 7216b1f69b75SAndy Adamson out: 7217b1f69b75SAndy Adamson return status; 7218b1f69b75SAndy Adamson } 7219863a3c6cSAndy Adamson 7220863a3c6cSAndy Adamson /* 7221cbe82603SBenny Halevy * Decode LAYOUTRETURN response 7222cbe82603SBenny Halevy */ 7223cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 7224cbe82603SBenny Halevy struct xdr_stream *xdr, 7225fc016483SChristoph Hellwig void *data) 7226cbe82603SBenny Halevy { 7227fc016483SChristoph Hellwig struct nfs4_layoutreturn_res *res = data; 7228cbe82603SBenny Halevy struct compound_hdr hdr; 7229cbe82603SBenny Halevy int status; 7230cbe82603SBenny Halevy 7231cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 7232cbe82603SBenny Halevy if (status) 7233cbe82603SBenny Halevy goto out; 7234cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 7235cbe82603SBenny Halevy if (status) 7236cbe82603SBenny Halevy goto out; 7237cbe82603SBenny Halevy status = decode_putfh(xdr); 7238cbe82603SBenny Halevy if (status) 7239cbe82603SBenny Halevy goto out; 7240cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 7241cbe82603SBenny Halevy out: 7242cbe82603SBenny Halevy return status; 7243cbe82603SBenny Halevy } 7244cbe82603SBenny Halevy 7245cbe82603SBenny Halevy /* 7246863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 7247863a3c6cSAndy Adamson */ 7248863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 7249863a3c6cSAndy Adamson struct xdr_stream *xdr, 7250fc016483SChristoph Hellwig void *data) 7251863a3c6cSAndy Adamson { 7252fc016483SChristoph Hellwig struct nfs4_layoutcommit_res *res = data; 7253863a3c6cSAndy Adamson struct compound_hdr hdr; 7254863a3c6cSAndy Adamson int status; 7255863a3c6cSAndy Adamson 7256863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 7257863a3c6cSAndy Adamson if (status) 7258863a3c6cSAndy Adamson goto out; 7259863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 7260863a3c6cSAndy Adamson if (status) 7261863a3c6cSAndy Adamson goto out; 7262863a3c6cSAndy Adamson status = decode_putfh(xdr); 7263863a3c6cSAndy Adamson if (status) 7264863a3c6cSAndy Adamson goto out; 7265863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 7266863a3c6cSAndy Adamson if (status) 7267863a3c6cSAndy Adamson goto out; 72686926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 7269863a3c6cSAndy Adamson out: 7270863a3c6cSAndy Adamson return status; 7271863a3c6cSAndy Adamson } 7272fca78d6dSBryan Schumaker 7273fca78d6dSBryan Schumaker /* 7274fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7275fca78d6dSBryan Schumaker */ 7276fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7277fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7278fc016483SChristoph Hellwig void *data) 7279fca78d6dSBryan Schumaker { 7280fc016483SChristoph Hellwig struct nfs4_secinfo_res *res = data; 7281fca78d6dSBryan Schumaker struct compound_hdr hdr; 7282fca78d6dSBryan Schumaker int status; 7283fca78d6dSBryan Schumaker 7284fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7285fca78d6dSBryan Schumaker if (status) 7286fca78d6dSBryan Schumaker goto out; 7287fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7288fca78d6dSBryan Schumaker if (status) 7289fca78d6dSBryan Schumaker goto out; 7290fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7291fca78d6dSBryan Schumaker if (status) 7292fca78d6dSBryan Schumaker goto out; 729331e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7294fca78d6dSBryan Schumaker out: 7295fca78d6dSBryan Schumaker return status; 7296fca78d6dSBryan Schumaker } 72977d974794SBryan Schumaker 72987d974794SBryan Schumaker /* 72997d974794SBryan Schumaker * Decode TEST_STATEID response 73007d974794SBryan Schumaker */ 73017d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 73027d974794SBryan Schumaker struct xdr_stream *xdr, 7303fc016483SChristoph Hellwig void *data) 73047d974794SBryan Schumaker { 7305fc016483SChristoph Hellwig struct nfs41_test_stateid_res *res = data; 73067d974794SBryan Schumaker struct compound_hdr hdr; 73077d974794SBryan Schumaker int status; 73087d974794SBryan Schumaker 73097d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 73107d974794SBryan Schumaker if (status) 73117d974794SBryan Schumaker goto out; 73127d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 73137d974794SBryan Schumaker if (status) 73147d974794SBryan Schumaker goto out; 73157d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 73167d974794SBryan Schumaker out: 73177d974794SBryan Schumaker return status; 73187d974794SBryan Schumaker } 73199aeda35fSBryan Schumaker 73209aeda35fSBryan Schumaker /* 73219aeda35fSBryan Schumaker * Decode FREE_STATEID response 73229aeda35fSBryan Schumaker */ 73239aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 73249aeda35fSBryan Schumaker struct xdr_stream *xdr, 7325fc016483SChristoph Hellwig void *data) 73269aeda35fSBryan Schumaker { 7327fc016483SChristoph Hellwig struct nfs41_free_stateid_res *res = data; 73289aeda35fSBryan Schumaker struct compound_hdr hdr; 73299aeda35fSBryan Schumaker int status; 73309aeda35fSBryan Schumaker 73319aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 73329aeda35fSBryan Schumaker if (status) 73339aeda35fSBryan Schumaker goto out; 73349aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 73359aeda35fSBryan Schumaker if (status) 73369aeda35fSBryan Schumaker goto out; 73379aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 73389aeda35fSBryan Schumaker out: 73399aeda35fSBryan Schumaker return status; 73409aeda35fSBryan Schumaker } 734199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 734299fe60d0SBenny Halevy 7343573c4e1eSChuck Lever /** 7344573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7345573c4e1eSChuck Lever * the local page cache. 7346573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7347573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7348573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7349573c4e1eSChuck Lever * 7350573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7351573c4e1eSChuck Lever * returned. 7352573c4e1eSChuck Lever * 7353573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7354573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7355573c4e1eSChuck Lever * on a directory already in our cache. 7356573c4e1eSChuck Lever */ 7357573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7358a7a3b1e9SBenjamin Coddington bool plus) 73591da177e4SLinus Torvalds { 7360256e48bbSTrond Myklebust unsigned int savep; 7361dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 73621da177e4SLinus Torvalds uint32_t len; 736398de9ce6SFrank Sorenson uint64_t new_cookie; 7364babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7365babddc72SBryan Schumaker if (unlikely(!p)) 7366eb72f484SChuck Lever return -EAGAIN; 7367c08e76d0SChuck Lever if (*p == xdr_zero) { 7368babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7369babddc72SBryan Schumaker if (unlikely(!p)) 7370eb72f484SChuck Lever return -EAGAIN; 7371c08e76d0SChuck Lever if (*p == xdr_zero) 7372573c4e1eSChuck Lever return -EAGAIN; 73731da177e4SLinus Torvalds entry->eof = 1; 7374573c4e1eSChuck Lever return -EBADCOOKIE; 73751da177e4SLinus Torvalds } 73761da177e4SLinus Torvalds 7377babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7378babddc72SBryan Schumaker if (unlikely(!p)) 7379eb72f484SChuck Lever return -EAGAIN; 738098de9ce6SFrank Sorenson p = xdr_decode_hyper(p, &new_cookie); 7381c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7382babddc72SBryan Schumaker 73839af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7384babddc72SBryan Schumaker if (unlikely(!p)) 7385eb72f484SChuck Lever return -EAGAIN; 73861da177e4SLinus Torvalds entry->name = (const char *) p; 73871da177e4SLinus Torvalds 73881da177e4SLinus Torvalds /* 73891da177e4SLinus Torvalds * In case the server doesn't return an inode number, 73901da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 73911da177e4SLinus Torvalds * since glibc seems to choke on it...) 73921da177e4SLinus Torvalds */ 73931da177e4SLinus Torvalds entry->ino = 1; 73944f082222STrond Myklebust entry->fattr->valid = 0; 73951da177e4SLinus Torvalds 73969af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7397eb72f484SChuck Lever return -EAGAIN; 73989af8c222STrond Myklebust 7399256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7400eb72f484SChuck Lever return -EAGAIN; 74019af8c222STrond Myklebust 7402573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 7403aa9c2669SDavid Quigley NULL, entry->label, entry->server) < 0) 7404eb72f484SChuck Lever return -EAGAIN; 740528331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 740628331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 740728331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 740882f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 74099af8c222STrond Myklebust 74100b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 74110b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 74120b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 74130b26a0bfSTrond Myklebust 741498de9ce6SFrank Sorenson entry->prev_cookie = entry->cookie; 741598de9ce6SFrank Sorenson entry->cookie = new_cookie; 741698de9ce6SFrank Sorenson 7417573c4e1eSChuck Lever return 0; 74181da177e4SLinus Torvalds } 74191da177e4SLinus Torvalds 74201da177e4SLinus Torvalds /* 74211da177e4SLinus Torvalds * We need to translate between nfs status return values and 74221da177e4SLinus Torvalds * the local errno values which may not be the same. 74231da177e4SLinus Torvalds */ 74241da177e4SLinus Torvalds static struct { 74251da177e4SLinus Torvalds int stat; 74261da177e4SLinus Torvalds int errno; 74271da177e4SLinus Torvalds } nfs_errtbl[] = { 74281da177e4SLinus Torvalds { NFS4_OK, 0 }, 7429856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7430856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7431856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7432856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7433856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7434856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7435856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7436856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7437856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7438856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7439856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7440856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7441856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7442856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7443856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7444856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7445856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7446856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7447856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7448856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7449856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7450856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7451fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7452856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7453856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7454856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7455856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7456856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7457856dff3dSBenny Halevy { -1, -EIO } 74581da177e4SLinus Torvalds }; 74591da177e4SLinus Torvalds 74601da177e4SLinus Torvalds /* 74611da177e4SLinus Torvalds * Convert an NFS error code to a local one. 74621da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 74631da177e4SLinus Torvalds */ 74641da177e4SLinus Torvalds static int 74650a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 74661da177e4SLinus Torvalds { 74671da177e4SLinus Torvalds int i; 74681da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 74691da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 74701da177e4SLinus Torvalds return nfs_errtbl[i].errno; 74711da177e4SLinus Torvalds } 74721da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 74731da177e4SLinus Torvalds /* The server is looney tunes. */ 7474fdcb4577STrond Myklebust return -EREMOTEIO; 74751da177e4SLinus Torvalds } 74761da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 74771da177e4SLinus Torvalds * handle it. 74781da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 74791da177e4SLinus Torvalds * not conflict with native Linux error codes. 74801da177e4SLinus Torvalds */ 7481856dff3dSBenny Halevy return -stat; 74821da177e4SLinus Torvalds } 74831da177e4SLinus Torvalds 74841c6dcbe5SAnna Schumaker #ifdef CONFIG_NFS_V4_2 74851c6dcbe5SAnna Schumaker #include "nfs42xdr.c" 74861c6dcbe5SAnna Schumaker #endif /* CONFIG_NFS_V4_2 */ 74871c6dcbe5SAnna Schumaker 74881da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 74891da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 74901da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 7491fcc85819SChristoph Hellwig .p_encode = nfs4_xdr_##argtype, \ 7492fc016483SChristoph Hellwig .p_decode = nfs4_xdr_##restype, \ 74932bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 74942bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7495cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7496cc0175c1SChuck Lever .p_name = #proc, \ 74971da177e4SLinus Torvalds } 74981da177e4SLinus Torvalds 74997c61f0d3SAnna Schumaker #define STUB(proc) \ 75007c61f0d3SAnna Schumaker [NFSPROC4_CLNT_##proc] = { \ 75017c61f0d3SAnna Schumaker .p_name = #proc, \ 75027c61f0d3SAnna Schumaker } 75037c61f0d3SAnna Schumaker 75048634ef5eSTrond Myklebust #if defined(CONFIG_NFS_V4_1) 75058634ef5eSTrond Myklebust #define PROC41(proc, argtype, restype) \ 75068634ef5eSTrond Myklebust PROC(proc, argtype, restype) 75078634ef5eSTrond Myklebust #else 75088634ef5eSTrond Myklebust #define PROC41(proc, argtype, restype) \ 75098634ef5eSTrond Myklebust STUB(proc) 75108634ef5eSTrond Myklebust #endif 75118634ef5eSTrond Myklebust 75128634ef5eSTrond Myklebust #if defined(CONFIG_NFS_V4_2) 75138634ef5eSTrond Myklebust #define PROC42(proc, argtype, restype) \ 75148634ef5eSTrond Myklebust PROC(proc, argtype, restype) 75158634ef5eSTrond Myklebust #else 75168634ef5eSTrond Myklebust #define PROC42(proc, argtype, restype) \ 75178634ef5eSTrond Myklebust STUB(proc) 75188634ef5eSTrond Myklebust #endif 75198634ef5eSTrond Myklebust 7520511e936bSChristoph Hellwig const struct rpc_procinfo nfs4_procedures[] = { 75211da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 75221da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 75231da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 75241da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 75251da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 75261da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 75271da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 75281da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 75291da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 75301da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 75311da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 75321da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 75331da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 75341da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 75351da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 75361da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 75371da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 75381da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 75391da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 75401da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 75411da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 75421da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 75431da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 75441da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 75451da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 75461da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 75471da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 75481da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 75491da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 75501da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 75511da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7552029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 755323ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7554683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7555d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 75565a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 755744c99933SChuck Lever PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present), 75588634ef5eSTrond Myklebust PROC41(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 75598634ef5eSTrond Myklebust PROC41(CREATE_SESSION, enc_create_session, dec_create_session), 75608634ef5eSTrond Myklebust PROC41(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 75618634ef5eSTrond Myklebust PROC41(SEQUENCE, enc_sequence, dec_sequence), 75628634ef5eSTrond Myklebust PROC41(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 75638634ef5eSTrond Myklebust PROC41(RECLAIM_COMPLETE,enc_reclaim_complete, dec_reclaim_complete), 75648634ef5eSTrond Myklebust PROC41(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 75658634ef5eSTrond Myklebust PROC41(LAYOUTGET, enc_layoutget, dec_layoutget), 75668634ef5eSTrond Myklebust PROC41(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 75678634ef5eSTrond Myklebust PROC41(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 75688634ef5eSTrond Myklebust PROC41(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 75698634ef5eSTrond Myklebust PROC41(TEST_STATEID, enc_test_stateid, dec_test_stateid), 75708634ef5eSTrond Myklebust PROC41(FREE_STATEID, enc_free_stateid, dec_free_stateid), 75717c61f0d3SAnna Schumaker STUB(GETDEVICELIST), 75728634ef5eSTrond Myklebust PROC41(BIND_CONN_TO_SESSION, 7573ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 75748634ef5eSTrond Myklebust PROC41(DESTROY_CLIENTID,enc_destroy_clientid, dec_destroy_clientid), 75758634ef5eSTrond Myklebust PROC42(SEEK, enc_seek, dec_seek), 75768634ef5eSTrond Myklebust PROC42(ALLOCATE, enc_allocate, dec_allocate), 75778634ef5eSTrond Myklebust PROC42(DEALLOCATE, enc_deallocate, dec_deallocate), 75788634ef5eSTrond Myklebust PROC42(LAYOUTSTATS, enc_layoutstats, dec_layoutstats), 75798634ef5eSTrond Myklebust PROC42(CLONE, enc_clone, dec_clone), 75808634ef5eSTrond Myklebust PROC42(COPY, enc_copy, dec_copy), 7581cb95deeaSOlga Kornievskaia PROC42(OFFLOAD_CANCEL, enc_offload_cancel, dec_offload_cancel), 75828634ef5eSTrond Myklebust PROC(LOOKUPP, enc_lookupp, dec_lookupp), 75831da177e4SLinus Torvalds }; 75841da177e4SLinus Torvalds 7585c551858aSChristoph Hellwig static unsigned int nfs_version4_counts[ARRAY_SIZE(nfs4_procedures)]; 7586a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 75871da177e4SLinus Torvalds .number = 4, 7588e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 7589c551858aSChristoph Hellwig .procs = nfs4_procedures, 7590c551858aSChristoph Hellwig .counts = nfs_version4_counts, 75911da177e4SLinus Torvalds }; 75921da177e4SLinus Torvalds 75931da177e4SLinus Torvalds /* 75941da177e4SLinus Torvalds * Local variables: 75951da177e4SLinus Torvalds * c-basic-offset: 8 75961da177e4SLinus Torvalds * End: 75971da177e4SLinus Torvalds */ 7598