mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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684a64bf32
New Features: * Add a 'noalignwrite' mount option for lock-less 'lost writes' prevention * Add support for the LOCALIO protocol extention Bugfixes: * Fix memory leak in error path of nfs4_do_reclaim() * Simplify and guarantee lock owner uniqueness * Fix -Wformat-truncation warning * Fix folio refcounts by using folio_attach_private() * Fix failing the mount system call when the server is down * Fix detection of "Proxying of Times" server support Cleanups: * Annotate struct nfs_cache_array with __counted_by() * Remove unnecessary NULL checks before kfree() * Convert RPC_TASK_* constants to an enum * Remove obsolete or misleading comments and declerations -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEnZ5MQTpR7cLU7KEp18tUv7ClQOsFAmbzKDAACgkQ18tUv7Cl QOusjBAAxTSoVbHocl+9eYpvKnscPArgPXnfd6mB9rnQRgtnceTO2ei7cdiE2qhz dxQiyzlAXh3e7dGwoy02qEd6wTTqWeQ8ESdMpCAqSacBU4tu5owfzNSWunZvgYYj QOhjdmv8M1IfZnTstPlVrRNaZcDkhV1tzEtpZppkEqhTB0bHWqrcM4EdklTWT0Yc PGMpGbfuGsa4qZy2vWl7doERVEgK8mBeahLtYFD2W6phIvNWgD6IlKy66RaK2RfH nXmZoZbI2/ioi4TKvNyY8xoGMGvetLI1h8YNQYkEg060XCkisLZDOvoodUAylOTR 2jHQLG5+/ejhpD/zgPghGZDSGNN1GyZaH09E/vtiS+3k9OXxFz6Rq68VnC6kpMA4 TIUYsT8ejPzs2gW59iDFGB6cKI4XnRtxgmApW/Za0y9A72PSi+G/pbWAk7ThjTxf +HySsba4baA63opIgBSLVBrUsXZfdn/KTDTZ4nkPiq57BggGcZv7Y2ItOTXA+pB/ 5nigDKkhWsYVjMbkx6wmh+VO2gv4/Z8WqsmiDwFMpVqM0w8eycBOHjOumuuc6nmw y+2OKZqU2Npm2HI/R8lA7nB1m2QP5t7CRM2+xlZNuavHrfsMaqHNl8/9VgxlCATQ /Zo74hbhmCgQYxrTjL8XFQG9/8y0o3H5IcTEr/SgCVxHyDSan1I= =YjyC -----END PGP SIGNATURE----- Merge tag 'nfs-for-6.12-1' of git://git.linux-nfs.org/projects/anna/linux-nfs Pull NFS client updates from Anna Schumaker: "New Features: - Add a 'noalignwrite' mount option for lock-less 'lost writes' prevention - Add support for the LOCALIO protocol extention Bugfixes: - Fix memory leak in error path of nfs4_do_reclaim() - Simplify and guarantee lock owner uniqueness - Fix -Wformat-truncation warning - Fix folio refcounts by using folio_attach_private() - Fix failing the mount system call when the server is down - Fix detection of "Proxying of Times" server support Cleanups: - Annotate struct nfs_cache_array with __counted_by() - Remove unnecessary NULL checks before kfree() - Convert RPC_TASK_* constants to an enum - Remove obsolete or misleading comments and declerations" * tag 'nfs-for-6.12-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (41 commits) nfs: Fix `make htmldocs` warnings in the localio documentation nfs: add "NFS Client and Server Interlock" section to localio.rst nfs: add FAQ section to Documentation/filesystems/nfs/localio.rst nfs: add Documentation/filesystems/nfs/localio.rst nfs: implement client support for NFS_LOCALIO_PROGRAM nfs/localio: use dedicated workqueues for filesystem read and write pnfs/flexfiles: enable localio support nfs: enable localio for non-pNFS IO nfs: add LOCALIO support nfs: pass struct nfsd_file to nfs_init_pgio and nfs_init_commit nfsd: implement server support for NFS_LOCALIO_PROGRAM nfsd: add LOCALIO support nfs_common: prepare for the NFS client to use nfsd_file for LOCALIO nfs_common: add NFS LOCALIO auxiliary protocol enablement SUNRPC: replace program list with program array SUNRPC: add svcauth_map_clnt_to_svc_cred_local SUNRPC: remove call_allocate() BUG_ONs nfsd: add nfsd_serv_try_get and nfsd_serv_put nfsd: add nfsd_file_acquire_local() nfsd: factor out __fh_verify to allow NULL rqstp to be passed ...
7721 lines
202 KiB
C
7721 lines
202 KiB
C
/*
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* fs/nfs/nfs4xdr.c
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*
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* Client-side XDR for NFSv4.
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*
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* Copyright (c) 2002 The Regents of the University of Michigan.
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* All rights reserved.
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*
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* Kendrick Smith <kmsmith@umich.edu>
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* Andy Adamson <andros@umich.edu>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/param.h>
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#include <linux/time.h>
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#include <linux/mm.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/in.h>
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#include <linux/pagemap.h>
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#include <linux/proc_fs.h>
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#include <linux/kdev_t.h>
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#include <linux/module.h>
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#include <linux/utsname.h>
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#include <linux/sunrpc/clnt.h>
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#include <linux/sunrpc/msg_prot.h>
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#include <linux/sunrpc/gss_api.h>
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#include <linux/nfs.h>
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#include <linux/nfs4.h>
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#include <linux/nfs_fs.h>
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#include <linux/nfs_common.h>
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#include "nfs4_fs.h"
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#include "nfs4trace.h"
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#include "internal.h"
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#include "nfs4idmap.h"
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#include "nfs4session.h"
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#include "pnfs.h"
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#include "netns.h"
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#define NFSDBG_FACILITY NFSDBG_XDR
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struct compound_hdr;
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static void encode_layoutget(struct xdr_stream *xdr,
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const struct nfs4_layoutget_args *args,
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struct compound_hdr *hdr);
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static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
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struct nfs4_layoutget_res *res);
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/* NFSv4 COMPOUND tags are only wanted for debugging purposes */
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#ifdef DEBUG
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#define NFS4_MAXTAGLEN 20
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#else
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#define NFS4_MAXTAGLEN 0
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#endif
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/* lock,open owner id:
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* we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
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*/
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#define pagepad_maxsz (1)
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#define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2)
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#define lock_owner_id_maxsz (1 + 1 + 4)
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#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
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#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
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#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
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#define op_encode_hdr_maxsz (1)
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#define op_decode_hdr_maxsz (2)
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#define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
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#define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
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#define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
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#define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
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#define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
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(NFS4_FHSIZE >> 2))
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#define decode_putfh_maxsz (op_decode_hdr_maxsz)
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#define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
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#define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
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#define encode_getfh_maxsz (op_encode_hdr_maxsz)
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#define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
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((3+NFS4_FHSIZE) >> 2))
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#define nfs4_fattr_bitmap_maxsz 4
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#define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
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#define nfstime4_maxsz (3)
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#define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
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#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
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#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
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#define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
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#ifdef CONFIG_NFS_V4_SECURITY_LABEL
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/* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */
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#define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN))
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#else
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#define nfs4_label_maxsz 0
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#endif
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/* We support only one layout type per file system */
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#define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8)
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/* This is based on getfattr, which uses the most attributes: */
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#define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
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3*nfstime4_maxsz + \
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nfs4_owner_maxsz + \
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nfs4_group_maxsz + nfs4_label_maxsz + \
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decode_mdsthreshold_maxsz))
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#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
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nfs4_fattr_value_maxsz)
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#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
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#define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
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1 + 2 + 1 + \
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nfs4_owner_maxsz + \
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nfs4_group_maxsz + \
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nfs4_label_maxsz + \
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1 + nfstime4_maxsz + \
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1 + nfstime4_maxsz)
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#define encode_savefh_maxsz (op_encode_hdr_maxsz)
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#define decode_savefh_maxsz (op_decode_hdr_maxsz)
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#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
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#define decode_restorefh_maxsz (op_decode_hdr_maxsz)
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#define encode_fsinfo_maxsz (encode_getattr_maxsz)
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/* The 5 accounts for the PNFS attributes, and assumes that at most three
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* layout types will be returned.
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*/
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#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
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nfs4_fattr_bitmap_maxsz + 1 + \
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1 /* lease time */ + \
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2 /* max filesize */ + \
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2 /* max read */ + \
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2 /* max write */ + \
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nfstime4_maxsz /* time delta */ + \
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5 /* fs layout types */ + \
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1 /* layout blksize */ + \
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1 /* clone blksize */ + \
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1 /* change attr type */ + \
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1 /* xattr support */)
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#define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
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#define decode_renew_maxsz (op_decode_hdr_maxsz)
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#define encode_setclientid_maxsz \
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(op_encode_hdr_maxsz + \
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XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
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/* client name */ \
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1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
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1 /* sc_prog */ + \
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1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
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1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
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1) /* sc_cb_ident */
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#define decode_setclientid_maxsz \
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(op_decode_hdr_maxsz + \
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2 /* clientid */ + \
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XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
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1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
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1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN))
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#define encode_setclientid_confirm_maxsz \
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(op_encode_hdr_maxsz + \
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3 + (NFS4_VERIFIER_SIZE >> 2))
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#define decode_setclientid_confirm_maxsz \
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(op_decode_hdr_maxsz)
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#define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
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#define decode_lookup_maxsz (op_decode_hdr_maxsz)
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#define encode_lookupp_maxsz (op_encode_hdr_maxsz)
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#define decode_lookupp_maxsz (op_decode_hdr_maxsz)
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#define encode_share_access_maxsz \
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(2)
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#define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
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#define encode_opentype_maxsz (1 + encode_createmode_maxsz)
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#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
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#define encode_open_maxsz (op_encode_hdr_maxsz + \
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2 + encode_share_access_maxsz + 2 + \
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open_owner_id_maxsz + \
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encode_opentype_maxsz + \
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encode_claim_null_maxsz)
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#define decode_space_limit_maxsz (3)
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#define decode_ace_maxsz (3 + nfs4_owner_maxsz)
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#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
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decode_space_limit_maxsz + \
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decode_ace_maxsz)
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#define decode_change_info_maxsz (5)
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#define decode_open_maxsz (op_decode_hdr_maxsz + \
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decode_stateid_maxsz + \
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decode_change_info_maxsz + 1 + \
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nfs4_fattr_bitmap_maxsz + \
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decode_delegation_maxsz)
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#define encode_open_confirm_maxsz \
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(op_encode_hdr_maxsz + \
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encode_stateid_maxsz + 1)
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#define decode_open_confirm_maxsz \
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(op_decode_hdr_maxsz + \
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decode_stateid_maxsz)
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#define encode_open_downgrade_maxsz \
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(op_encode_hdr_maxsz + \
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encode_stateid_maxsz + 1 + \
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encode_share_access_maxsz)
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#define decode_open_downgrade_maxsz \
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(op_decode_hdr_maxsz + \
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decode_stateid_maxsz)
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#define encode_close_maxsz (op_encode_hdr_maxsz + \
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1 + encode_stateid_maxsz)
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#define decode_close_maxsz (op_decode_hdr_maxsz + \
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decode_stateid_maxsz)
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#define encode_setattr_maxsz (op_encode_hdr_maxsz + \
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encode_stateid_maxsz + \
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encode_attrs_maxsz)
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#define decode_setattr_maxsz (op_decode_hdr_maxsz + \
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nfs4_fattr_bitmap_maxsz)
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#define encode_delegattr_maxsz (op_encode_hdr_maxsz + \
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encode_stateid_maxsz + \
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nfs4_fattr_bitmap_maxsz + \
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2*nfstime4_maxsz)
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#define decode_delegattr_maxsz (decode_setattr_maxsz)
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#define encode_read_maxsz (op_encode_hdr_maxsz + \
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encode_stateid_maxsz + 3)
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#define decode_read_maxsz (op_decode_hdr_maxsz + 2 + pagepad_maxsz)
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#define encode_readdir_maxsz (op_encode_hdr_maxsz + \
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2 + encode_verifier_maxsz + 5 + \
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nfs4_label_maxsz)
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#define decode_readdir_maxsz (op_decode_hdr_maxsz + \
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decode_verifier_maxsz + pagepad_maxsz)
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#define encode_readlink_maxsz (op_encode_hdr_maxsz)
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#define decode_readlink_maxsz (op_decode_hdr_maxsz + 1 + pagepad_maxsz)
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#define encode_write_maxsz (op_encode_hdr_maxsz + \
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encode_stateid_maxsz + 4)
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#define decode_write_maxsz (op_decode_hdr_maxsz + \
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2 + decode_verifier_maxsz)
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#define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
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#define decode_commit_maxsz (op_decode_hdr_maxsz + \
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decode_verifier_maxsz)
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#define encode_remove_maxsz (op_encode_hdr_maxsz + \
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nfs4_name_maxsz)
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#define decode_remove_maxsz (op_decode_hdr_maxsz + \
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decode_change_info_maxsz)
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#define encode_rename_maxsz (op_encode_hdr_maxsz + \
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2 * nfs4_name_maxsz)
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#define decode_rename_maxsz (op_decode_hdr_maxsz + \
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decode_change_info_maxsz + \
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decode_change_info_maxsz)
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#define encode_link_maxsz (op_encode_hdr_maxsz + \
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nfs4_name_maxsz)
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#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
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#define encode_lockowner_maxsz (7)
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#define encode_lock_maxsz (op_encode_hdr_maxsz + \
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7 + \
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1 + encode_stateid_maxsz + 1 + \
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encode_lockowner_maxsz)
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#define decode_lock_denied_maxsz \
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(8 + decode_lockowner_maxsz)
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#define decode_lock_maxsz (op_decode_hdr_maxsz + \
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decode_lock_denied_maxsz)
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#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
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encode_lockowner_maxsz)
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#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
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decode_lock_denied_maxsz)
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#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
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encode_stateid_maxsz + \
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4)
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#define decode_locku_maxsz (op_decode_hdr_maxsz + \
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decode_stateid_maxsz)
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#define encode_release_lockowner_maxsz \
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(op_encode_hdr_maxsz + \
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encode_lockowner_maxsz)
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#define decode_release_lockowner_maxsz \
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(op_decode_hdr_maxsz)
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#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
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#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
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#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
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1 + nfs4_name_maxsz + \
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1 + \
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nfs4_fattr_maxsz)
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#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
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#define encode_create_maxsz (op_encode_hdr_maxsz + \
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1 + 2 + nfs4_name_maxsz + \
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encode_attrs_maxsz)
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#define decode_create_maxsz (op_decode_hdr_maxsz + \
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decode_change_info_maxsz + \
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nfs4_fattr_bitmap_maxsz)
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#define encode_statfs_maxsz (encode_getattr_maxsz)
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#define decode_statfs_maxsz (decode_getattr_maxsz)
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#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
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#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
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#define encode_getacl_maxsz (encode_getattr_maxsz)
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#define decode_getacl_maxsz (op_decode_hdr_maxsz + \
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nfs4_fattr_bitmap_maxsz + 1 + pagepad_maxsz)
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#define encode_setacl_maxsz (op_encode_hdr_maxsz + \
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encode_stateid_maxsz + 3)
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#define decode_setacl_maxsz (decode_setattr_maxsz)
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#define encode_fs_locations_maxsz \
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(encode_getattr_maxsz)
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#define decode_fs_locations_maxsz \
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(pagepad_maxsz)
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#define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
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#define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
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#if defined(CONFIG_NFS_V4_1)
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#define NFS4_MAX_MACHINE_NAME_LEN (64)
|
|
#define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \
|
|
sizeof(utsname()->version) + sizeof(utsname()->machine) + 8)
|
|
|
|
#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
|
|
encode_verifier_maxsz + \
|
|
1 /* co_ownerid.len */ + \
|
|
/* eia_clientowner */ \
|
|
1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
|
|
1 /* flags */ + \
|
|
1 /* spa_how */ + \
|
|
/* max is SP4_MACH_CRED (for now) */ + \
|
|
1 + NFS4_OP_MAP_NUM_WORDS + \
|
|
1 + NFS4_OP_MAP_NUM_WORDS + \
|
|
1 /* implementation id array of size 1 */ + \
|
|
1 /* nii_domain */ + \
|
|
XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
|
|
1 /* nii_name */ + \
|
|
XDR_QUADLEN(IMPL_NAME_LIMIT) + \
|
|
3 /* nii_date */)
|
|
#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
|
|
2 /* eir_clientid */ + \
|
|
1 /* eir_sequenceid */ + \
|
|
1 /* eir_flags */ + \
|
|
1 /* spr_how */ + \
|
|
/* max is SP4_MACH_CRED (for now) */ + \
|
|
1 + NFS4_OP_MAP_NUM_WORDS + \
|
|
1 + NFS4_OP_MAP_NUM_WORDS + \
|
|
2 /* eir_server_owner.so_minor_id */ + \
|
|
/* eir_server_owner.so_major_id<> */ \
|
|
XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
|
|
/* eir_server_scope<> */ \
|
|
XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
|
|
1 /* eir_server_impl_id array length */ + \
|
|
1 /* nii_domain */ + \
|
|
XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
|
|
1 /* nii_name */ + \
|
|
XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
|
|
3 /* nii_date */)
|
|
#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
|
|
#define decode_channel_attrs_maxsz (6 + \
|
|
1 /* ca_rdma_ird.len */ + \
|
|
1 /* ca_rdma_ird */)
|
|
#define encode_create_session_maxsz (op_encode_hdr_maxsz + \
|
|
2 /* csa_clientid */ + \
|
|
1 /* csa_sequence */ + \
|
|
1 /* csa_flags */ + \
|
|
encode_channel_attrs_maxsz + \
|
|
encode_channel_attrs_maxsz + \
|
|
1 /* csa_cb_program */ + \
|
|
1 /* csa_sec_parms.len (1) */ + \
|
|
1 /* cb_secflavor (AUTH_SYS) */ + \
|
|
1 /* stamp */ + \
|
|
1 /* machinename.len */ + \
|
|
XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
|
|
1 /* uid */ + \
|
|
1 /* gid */ + \
|
|
1 /* gids.len (0) */)
|
|
#define decode_create_session_maxsz (op_decode_hdr_maxsz + \
|
|
XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
|
|
1 /* csr_sequence */ + \
|
|
1 /* csr_flags */ + \
|
|
decode_channel_attrs_maxsz + \
|
|
decode_channel_attrs_maxsz)
|
|
#define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
|
|
/* bctsa_sessid */ \
|
|
XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
|
|
1 /* bctsa_dir */ + \
|
|
1 /* bctsa_use_conn_in_rdma_mode */)
|
|
#define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
|
|
/* bctsr_sessid */ \
|
|
XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
|
|
1 /* bctsr_dir */ + \
|
|
1 /* bctsr_use_conn_in_rdma_mode */)
|
|
#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
|
|
#define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
|
|
#define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
|
|
#define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
|
|
#define encode_sequence_maxsz (op_encode_hdr_maxsz + \
|
|
XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
|
|
#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
|
|
XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
|
|
#define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
|
|
#define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
|
|
#define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \
|
|
XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \
|
|
1 /* layout type */ + \
|
|
1 /* maxcount */ + \
|
|
1 /* bitmap size */ + \
|
|
1 /* notification bitmap length */ + \
|
|
1 /* notification bitmap, word 0 */)
|
|
#define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
|
|
1 /* layout type */ + \
|
|
1 /* opaque devaddr4 length */ + \
|
|
/* devaddr4 payload is read into page */ \
|
|
1 /* notification bitmap length */ + \
|
|
1 /* notification bitmap, word 0 */ + \
|
|
pagepad_maxsz /* possible XDR padding */)
|
|
#define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
|
|
encode_stateid_maxsz)
|
|
#define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
|
|
decode_stateid_maxsz + \
|
|
XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE) + \
|
|
pagepad_maxsz)
|
|
#define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
|
|
2 /* offset */ + \
|
|
2 /* length */ + \
|
|
1 /* reclaim */ + \
|
|
encode_stateid_maxsz + \
|
|
1 /* new offset (true) */ + \
|
|
2 /* last byte written */ + \
|
|
1 /* nt_timechanged (false) */ + \
|
|
1 /* layoutupdate4 layout type */ + \
|
|
1 /* layoutupdate4 opaqueue len */)
|
|
/* the actual content of layoutupdate4 should
|
|
be allocated by drivers and spliced in
|
|
using xdr_write_pages */
|
|
#define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
|
|
#define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
|
|
encode_stateid_maxsz + \
|
|
1 + \
|
|
XDR_QUADLEN(NFS4_OPAQUE_LIMIT))
|
|
#define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
|
|
1 + decode_stateid_maxsz)
|
|
#define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
|
|
#define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
|
|
#define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
|
|
XDR_QUADLEN(NFS4_STATEID_SIZE))
|
|
#define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
|
|
#define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
|
|
XDR_QUADLEN(NFS4_STATEID_SIZE))
|
|
#define decode_free_stateid_maxsz (op_decode_hdr_maxsz)
|
|
#else /* CONFIG_NFS_V4_1 */
|
|
#define encode_sequence_maxsz 0
|
|
#define decode_sequence_maxsz 0
|
|
#define encode_layoutreturn_maxsz 0
|
|
#define decode_layoutreturn_maxsz 0
|
|
#define encode_layoutget_maxsz 0
|
|
#define decode_layoutget_maxsz 0
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
|
|
#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
|
|
#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
|
|
#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_read_maxsz)
|
|
#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_read_maxsz)
|
|
#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_readlink_maxsz)
|
|
#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_readlink_maxsz)
|
|
#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_readdir_maxsz)
|
|
#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_readdir_maxsz)
|
|
#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_write_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_write_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_commit_maxsz)
|
|
#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_commit_maxsz)
|
|
#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_open_maxsz + \
|
|
encode_access_maxsz + \
|
|
encode_getfh_maxsz + \
|
|
encode_getattr_maxsz + \
|
|
encode_layoutget_maxsz)
|
|
#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_open_maxsz + \
|
|
decode_access_maxsz + \
|
|
decode_getfh_maxsz + \
|
|
decode_getattr_maxsz + \
|
|
decode_layoutget_maxsz)
|
|
#define NFS4_enc_open_confirm_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_open_confirm_maxsz)
|
|
#define NFS4_dec_open_confirm_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_open_confirm_maxsz)
|
|
#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_open_maxsz + \
|
|
encode_access_maxsz + \
|
|
encode_getattr_maxsz + \
|
|
encode_layoutget_maxsz)
|
|
#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_open_maxsz + \
|
|
decode_access_maxsz + \
|
|
decode_getattr_maxsz + \
|
|
decode_layoutget_maxsz)
|
|
#define NFS4_enc_open_downgrade_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_layoutreturn_maxsz + \
|
|
encode_open_downgrade_maxsz)
|
|
#define NFS4_dec_open_downgrade_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_layoutreturn_maxsz + \
|
|
decode_open_downgrade_maxsz)
|
|
#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_layoutreturn_maxsz + \
|
|
encode_close_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_layoutreturn_maxsz + \
|
|
decode_close_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_setattr_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_setattr_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_fsinfo_maxsz)
|
|
#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_fsinfo_maxsz)
|
|
#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
|
|
encode_renew_maxsz)
|
|
#define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
|
|
decode_renew_maxsz)
|
|
#define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
|
|
encode_setclientid_maxsz)
|
|
#define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
|
|
decode_setclientid_maxsz)
|
|
#define NFS4_enc_setclientid_confirm_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_setclientid_confirm_maxsz)
|
|
#define NFS4_dec_setclientid_confirm_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_setclientid_confirm_maxsz)
|
|
#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_lock_maxsz)
|
|
#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_lock_maxsz)
|
|
#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_lockt_maxsz)
|
|
#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_lockt_maxsz)
|
|
#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_locku_maxsz)
|
|
#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_locku_maxsz)
|
|
#define NFS4_enc_release_lockowner_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_lockowner_maxsz)
|
|
#define NFS4_dec_release_lockowner_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_lockowner_maxsz)
|
|
#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_access_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_access_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_getattr_maxsz + \
|
|
encode_renew_maxsz)
|
|
#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_getattr_maxsz + \
|
|
decode_renew_maxsz)
|
|
#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_lookup_maxsz + \
|
|
encode_getattr_maxsz + \
|
|
encode_getfh_maxsz)
|
|
#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_lookup_maxsz + \
|
|
decode_getattr_maxsz + \
|
|
decode_getfh_maxsz)
|
|
#define NFS4_enc_lookupp_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_lookupp_maxsz + \
|
|
encode_getattr_maxsz + \
|
|
encode_getfh_maxsz)
|
|
#define NFS4_dec_lookupp_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_lookupp_maxsz + \
|
|
decode_getattr_maxsz + \
|
|
decode_getfh_maxsz)
|
|
#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putrootfh_maxsz + \
|
|
encode_getattr_maxsz + \
|
|
encode_getfh_maxsz)
|
|
#define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putrootfh_maxsz + \
|
|
decode_getattr_maxsz + \
|
|
decode_getfh_maxsz)
|
|
#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_remove_maxsz)
|
|
#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_remove_maxsz)
|
|
#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_savefh_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_rename_maxsz)
|
|
#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_savefh_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_rename_maxsz)
|
|
#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_savefh_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_link_maxsz + \
|
|
encode_restorefh_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_savefh_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_link_maxsz + \
|
|
decode_restorefh_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_symlink_maxsz + \
|
|
encode_getattr_maxsz + \
|
|
encode_getfh_maxsz)
|
|
#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_symlink_maxsz + \
|
|
decode_getattr_maxsz + \
|
|
decode_getfh_maxsz)
|
|
#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_create_maxsz + \
|
|
encode_getfh_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_create_maxsz + \
|
|
decode_getfh_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_statfs_maxsz)
|
|
#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_statfs_maxsz)
|
|
#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_layoutreturn_maxsz + \
|
|
encode_delegattr_maxsz + \
|
|
encode_delegreturn_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_layoutreturn_maxsz + \
|
|
decode_delegattr_maxsz + \
|
|
decode_delegreturn_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_getacl_maxsz)
|
|
#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_getacl_maxsz)
|
|
#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_setacl_maxsz)
|
|
#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_setacl_maxsz)
|
|
#define NFS4_enc_fs_locations_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_lookup_maxsz + \
|
|
encode_fs_locations_maxsz + \
|
|
encode_renew_maxsz)
|
|
#define NFS4_dec_fs_locations_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_lookup_maxsz + \
|
|
decode_fs_locations_maxsz + \
|
|
decode_renew_maxsz)
|
|
#define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_secinfo_maxsz)
|
|
#define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_secinfo_maxsz)
|
|
#define NFS4_enc_fsid_present_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_getfh_maxsz + \
|
|
encode_renew_maxsz)
|
|
#define NFS4_dec_fsid_present_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_getfh_maxsz + \
|
|
decode_renew_maxsz)
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
#define NFS4_enc_bind_conn_to_session_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_bind_conn_to_session_maxsz)
|
|
#define NFS4_dec_bind_conn_to_session_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_bind_conn_to_session_maxsz)
|
|
#define NFS4_enc_exchange_id_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_exchange_id_maxsz)
|
|
#define NFS4_dec_exchange_id_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_exchange_id_maxsz)
|
|
#define NFS4_enc_create_session_sz \
|
|
(compound_encode_hdr_maxsz + \
|
|
encode_create_session_maxsz)
|
|
#define NFS4_dec_create_session_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_create_session_maxsz)
|
|
#define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
|
|
encode_destroy_session_maxsz)
|
|
#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
|
|
decode_destroy_session_maxsz)
|
|
#define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
|
|
encode_destroy_clientid_maxsz)
|
|
#define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
|
|
decode_destroy_clientid_maxsz)
|
|
#define NFS4_enc_sequence_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
encode_sequence_maxsz)
|
|
#define NFS4_dec_sequence_sz \
|
|
(compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz)
|
|
#endif
|
|
#define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putrootfh_maxsz + \
|
|
encode_fsinfo_maxsz)
|
|
#define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putrootfh_maxsz + \
|
|
decode_fsinfo_maxsz)
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
#define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_reclaim_complete_maxsz)
|
|
#define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_reclaim_complete_maxsz)
|
|
#define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz +\
|
|
encode_getdeviceinfo_maxsz)
|
|
#define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_getdeviceinfo_maxsz)
|
|
#define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_layoutget_maxsz)
|
|
#define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_layoutget_maxsz)
|
|
#define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz +\
|
|
encode_putfh_maxsz + \
|
|
encode_layoutcommit_maxsz + \
|
|
encode_getattr_maxsz)
|
|
#define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_layoutcommit_maxsz + \
|
|
decode_getattr_maxsz)
|
|
#define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putfh_maxsz + \
|
|
encode_layoutreturn_maxsz)
|
|
#define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putfh_maxsz + \
|
|
decode_layoutreturn_maxsz)
|
|
#define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_putrootfh_maxsz +\
|
|
encode_secinfo_no_name_maxsz)
|
|
#define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_putrootfh_maxsz + \
|
|
decode_secinfo_no_name_maxsz)
|
|
#define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_test_stateid_maxsz)
|
|
#define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_test_stateid_maxsz)
|
|
#define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
|
|
encode_sequence_maxsz + \
|
|
encode_free_stateid_maxsz)
|
|
#define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
|
|
decode_sequence_maxsz + \
|
|
decode_free_stateid_maxsz)
|
|
|
|
const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
|
|
compound_encode_hdr_maxsz +
|
|
encode_sequence_maxsz +
|
|
encode_putfh_maxsz +
|
|
encode_getattr_maxsz) *
|
|
XDR_UNIT);
|
|
|
|
const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
|
|
compound_decode_hdr_maxsz +
|
|
decode_sequence_maxsz +
|
|
decode_putfh_maxsz) *
|
|
XDR_UNIT);
|
|
|
|
const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH +
|
|
compound_decode_hdr_maxsz +
|
|
decode_sequence_maxsz) *
|
|
XDR_UNIT);
|
|
EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead);
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
|
|
static const umode_t nfs_type2fmt[] = {
|
|
[NF4BAD] = 0,
|
|
[NF4REG] = S_IFREG,
|
|
[NF4DIR] = S_IFDIR,
|
|
[NF4BLK] = S_IFBLK,
|
|
[NF4CHR] = S_IFCHR,
|
|
[NF4LNK] = S_IFLNK,
|
|
[NF4SOCK] = S_IFSOCK,
|
|
[NF4FIFO] = S_IFIFO,
|
|
[NF4ATTRDIR] = 0,
|
|
[NF4NAMEDATTR] = 0,
|
|
};
|
|
|
|
struct compound_hdr {
|
|
int32_t status;
|
|
uint32_t nops;
|
|
__be32 * nops_p;
|
|
uint32_t taglen;
|
|
char * tag;
|
|
uint32_t replen; /* expected reply words */
|
|
u32 minorversion;
|
|
};
|
|
|
|
static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
|
|
{
|
|
__be32 *p = xdr_reserve_space(xdr, nbytes);
|
|
BUG_ON(!p);
|
|
return p;
|
|
}
|
|
|
|
static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
|
|
{
|
|
WARN_ON_ONCE(xdr_stream_encode_opaque(xdr, str, len) < 0);
|
|
}
|
|
|
|
static void encode_uint32(struct xdr_stream *xdr, u32 n)
|
|
{
|
|
WARN_ON_ONCE(xdr_stream_encode_u32(xdr, n) < 0);
|
|
}
|
|
|
|
static void encode_uint64(struct xdr_stream *xdr, u64 n)
|
|
{
|
|
WARN_ON_ONCE(xdr_stream_encode_u64(xdr, n) < 0);
|
|
}
|
|
|
|
static ssize_t xdr_encode_bitmap4(struct xdr_stream *xdr,
|
|
const __u32 *bitmap, size_t len)
|
|
{
|
|
ssize_t ret;
|
|
|
|
/* Trim empty words */
|
|
while (len > 0 && bitmap[len-1] == 0)
|
|
len--;
|
|
ret = xdr_stream_encode_uint32_array(xdr, bitmap, len);
|
|
if (WARN_ON_ONCE(ret < 0))
|
|
return ret;
|
|
return len;
|
|
}
|
|
|
|
static size_t mask_bitmap4(const __u32 *bitmap, const __u32 *mask,
|
|
__u32 *res, size_t len)
|
|
{
|
|
size_t i;
|
|
__u32 tmp;
|
|
|
|
while (len > 0 && (bitmap[len-1] == 0 || mask[len-1] == 0))
|
|
len--;
|
|
for (i = len; i-- > 0;) {
|
|
tmp = bitmap[i] & mask[i];
|
|
res[i] = tmp;
|
|
}
|
|
return len;
|
|
}
|
|
|
|
static void encode_nfs4_seqid(struct xdr_stream *xdr,
|
|
const struct nfs_seqid *seqid)
|
|
{
|
|
if (seqid != NULL)
|
|
encode_uint32(xdr, seqid->sequence->counter);
|
|
else
|
|
encode_uint32(xdr, 0);
|
|
}
|
|
|
|
static void encode_compound_hdr(struct xdr_stream *xdr,
|
|
struct rpc_rqst *req,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
/* initialize running count of expected bytes in reply.
|
|
* NOTE: the replied tag SHOULD be the same is the one sent,
|
|
* but this is not required as a MUST for the server to do so. */
|
|
hdr->replen = 3 + hdr->taglen;
|
|
|
|
WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN);
|
|
encode_string(xdr, hdr->taglen, hdr->tag);
|
|
p = reserve_space(xdr, 8);
|
|
*p++ = cpu_to_be32(hdr->minorversion);
|
|
hdr->nops_p = p;
|
|
*p = cpu_to_be32(hdr->nops);
|
|
}
|
|
|
|
static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op,
|
|
uint32_t replen,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_uint32(xdr, op);
|
|
hdr->nops++;
|
|
hdr->replen += replen;
|
|
}
|
|
|
|
static void encode_nops(struct compound_hdr *hdr)
|
|
{
|
|
WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS);
|
|
*hdr->nops_p = htonl(hdr->nops);
|
|
}
|
|
|
|
static void encode_nfs4_stateid(struct xdr_stream *xdr,
|
|
const nfs4_stateid *stateid)
|
|
{
|
|
encode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
|
|
}
|
|
|
|
static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
|
|
{
|
|
encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE);
|
|
}
|
|
|
|
static __be32 *
|
|
xdr_encode_nfstime4(__be32 *p, const struct timespec64 *t)
|
|
{
|
|
p = xdr_encode_hyper(p, t->tv_sec);
|
|
*p++ = cpu_to_be32(t->tv_nsec);
|
|
return p;
|
|
}
|
|
|
|
static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
|
|
const struct nfs4_label *label,
|
|
const umode_t *umask,
|
|
const struct nfs_server *server,
|
|
const uint32_t attrmask[])
|
|
{
|
|
char owner_name[IDMAP_NAMESZ];
|
|
char owner_group[IDMAP_NAMESZ];
|
|
int owner_namelen = 0;
|
|
int owner_grouplen = 0;
|
|
__be32 *p;
|
|
uint32_t len = 0;
|
|
uint32_t bmval[3] = { 0 };
|
|
|
|
/*
|
|
* We reserve enough space to write the entire attribute buffer at once.
|
|
*/
|
|
if ((iap->ia_valid & ATTR_SIZE) && (attrmask[0] & FATTR4_WORD0_SIZE)) {
|
|
bmval[0] |= FATTR4_WORD0_SIZE;
|
|
len += 8;
|
|
}
|
|
if (iap->ia_valid & ATTR_MODE) {
|
|
if (umask && (attrmask[2] & FATTR4_WORD2_MODE_UMASK)) {
|
|
bmval[2] |= FATTR4_WORD2_MODE_UMASK;
|
|
len += 8;
|
|
} else if (attrmask[1] & FATTR4_WORD1_MODE) {
|
|
bmval[1] |= FATTR4_WORD1_MODE;
|
|
len += 4;
|
|
}
|
|
}
|
|
if ((iap->ia_valid & ATTR_UID) && (attrmask[1] & FATTR4_WORD1_OWNER)) {
|
|
owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
|
|
if (owner_namelen < 0) {
|
|
dprintk("nfs: couldn't resolve uid %d to string\n",
|
|
from_kuid(&init_user_ns, iap->ia_uid));
|
|
/* XXX */
|
|
strcpy(owner_name, "nobody");
|
|
owner_namelen = sizeof("nobody") - 1;
|
|
/* goto out; */
|
|
}
|
|
bmval[1] |= FATTR4_WORD1_OWNER;
|
|
len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
|
|
}
|
|
if ((iap->ia_valid & ATTR_GID) &&
|
|
(attrmask[1] & FATTR4_WORD1_OWNER_GROUP)) {
|
|
owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
|
|
if (owner_grouplen < 0) {
|
|
dprintk("nfs: couldn't resolve gid %d to string\n",
|
|
from_kgid(&init_user_ns, iap->ia_gid));
|
|
strcpy(owner_group, "nobody");
|
|
owner_grouplen = sizeof("nobody") - 1;
|
|
/* goto out; */
|
|
}
|
|
bmval[1] |= FATTR4_WORD1_OWNER_GROUP;
|
|
len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
|
|
}
|
|
if (attrmask[1] & FATTR4_WORD1_TIME_ACCESS_SET) {
|
|
if (iap->ia_valid & ATTR_ATIME_SET) {
|
|
bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
|
|
len += 4 + (nfstime4_maxsz << 2);
|
|
} else if (iap->ia_valid & ATTR_ATIME) {
|
|
bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
|
|
len += 4;
|
|
}
|
|
}
|
|
if (attrmask[1] & FATTR4_WORD1_TIME_MODIFY_SET) {
|
|
if (iap->ia_valid & ATTR_MTIME_SET) {
|
|
bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
|
|
len += 4 + (nfstime4_maxsz << 2);
|
|
} else if (iap->ia_valid & ATTR_MTIME) {
|
|
bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
|
|
len += 4;
|
|
}
|
|
}
|
|
|
|
if (label && (attrmask[2] & FATTR4_WORD2_SECURITY_LABEL)) {
|
|
len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2);
|
|
bmval[2] |= FATTR4_WORD2_SECURITY_LABEL;
|
|
}
|
|
|
|
xdr_encode_bitmap4(xdr, bmval, ARRAY_SIZE(bmval));
|
|
xdr_stream_encode_opaque_inline(xdr, (void **)&p, len);
|
|
|
|
if (bmval[0] & FATTR4_WORD0_SIZE)
|
|
p = xdr_encode_hyper(p, iap->ia_size);
|
|
if (bmval[1] & FATTR4_WORD1_MODE)
|
|
*p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
|
|
if (bmval[1] & FATTR4_WORD1_OWNER)
|
|
p = xdr_encode_opaque(p, owner_name, owner_namelen);
|
|
if (bmval[1] & FATTR4_WORD1_OWNER_GROUP)
|
|
p = xdr_encode_opaque(p, owner_group, owner_grouplen);
|
|
if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) {
|
|
if (iap->ia_valid & ATTR_ATIME_SET) {
|
|
*p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
|
|
p = xdr_encode_nfstime4(p, &iap->ia_atime);
|
|
} else
|
|
*p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
|
|
}
|
|
if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) {
|
|
if (iap->ia_valid & ATTR_MTIME_SET) {
|
|
*p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
|
|
p = xdr_encode_nfstime4(p, &iap->ia_mtime);
|
|
} else
|
|
*p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
|
|
}
|
|
if (label && (bmval[2] & FATTR4_WORD2_SECURITY_LABEL)) {
|
|
*p++ = cpu_to_be32(label->lfs);
|
|
*p++ = cpu_to_be32(label->pi);
|
|
*p++ = cpu_to_be32(label->len);
|
|
p = xdr_encode_opaque_fixed(p, label->label, label->len);
|
|
}
|
|
if (bmval[2] & FATTR4_WORD2_MODE_UMASK) {
|
|
*p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
|
|
*p++ = cpu_to_be32(*umask);
|
|
}
|
|
|
|
/* out: */
|
|
}
|
|
|
|
static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr);
|
|
encode_uint32(xdr, access);
|
|
}
|
|
|
|
static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr);
|
|
encode_nfs4_seqid(xdr, arg->seqid);
|
|
encode_nfs4_stateid(xdr, &arg->stateid);
|
|
}
|
|
|
|
static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr);
|
|
p = reserve_space(xdr, 12);
|
|
p = xdr_encode_hyper(p, args->offset);
|
|
*p = cpu_to_be32(args->count);
|
|
}
|
|
|
|
static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr);
|
|
encode_uint32(xdr, create->ftype);
|
|
|
|
switch (create->ftype) {
|
|
case NF4LNK:
|
|
p = reserve_space(xdr, 4);
|
|
*p = cpu_to_be32(create->u.symlink.len);
|
|
xdr_write_pages(xdr, create->u.symlink.pages, 0,
|
|
create->u.symlink.len);
|
|
xdr->buf->flags |= XDRBUF_WRITE;
|
|
break;
|
|
|
|
case NF4BLK: case NF4CHR:
|
|
p = reserve_space(xdr, 8);
|
|
*p++ = cpu_to_be32(create->u.device.specdata1);
|
|
*p = cpu_to_be32(create->u.device.specdata2);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
encode_string(xdr, create->name->len, create->name->name);
|
|
encode_attrs(xdr, create->attrs, create->label, &create->umask,
|
|
create->server, create->server->attr_bitmask);
|
|
}
|
|
|
|
static void encode_getattr(struct xdr_stream *xdr,
|
|
const __u32 *bitmap, const __u32 *mask, size_t len,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__u32 masked_bitmap[nfs4_fattr_bitmap_maxsz];
|
|
|
|
encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
|
|
if (mask) {
|
|
if (WARN_ON_ONCE(len > ARRAY_SIZE(masked_bitmap)))
|
|
len = ARRAY_SIZE(masked_bitmap);
|
|
len = mask_bitmap4(bitmap, mask, masked_bitmap, len);
|
|
bitmap = masked_bitmap;
|
|
}
|
|
xdr_encode_bitmap4(xdr, bitmap, len);
|
|
}
|
|
|
|
static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
|
|
{
|
|
encode_getattr(xdr, nfs4_fattr_bitmap, bitmask,
|
|
ARRAY_SIZE(nfs4_fattr_bitmap), hdr);
|
|
}
|
|
|
|
static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask,
|
|
const u32 *open_bitmap,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_getattr(xdr, open_bitmap, bitmask, 3, hdr);
|
|
}
|
|
|
|
static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
|
|
{
|
|
encode_getattr(xdr, nfs4_fsinfo_bitmap, bitmask,
|
|
ARRAY_SIZE(nfs4_fsinfo_bitmap), hdr);
|
|
}
|
|
|
|
static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
|
|
{
|
|
encode_getattr(xdr, nfs4_fs_locations_bitmap, bitmask,
|
|
ARRAY_SIZE(nfs4_fs_locations_bitmap), hdr);
|
|
}
|
|
|
|
static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr);
|
|
}
|
|
|
|
static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr);
|
|
encode_string(xdr, name->len, name->name);
|
|
}
|
|
|
|
static inline int nfs4_lock_type(struct file_lock *fl, int block)
|
|
{
|
|
if (lock_is_read(fl))
|
|
return block ? NFS4_READW_LT : NFS4_READ_LT;
|
|
return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
|
|
}
|
|
|
|
static inline uint64_t nfs4_lock_length(struct file_lock *fl)
|
|
{
|
|
if (fl->fl_end == OFFSET_MAX)
|
|
return ~(uint64_t)0;
|
|
return fl->fl_end - fl->fl_start + 1;
|
|
}
|
|
|
|
static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 32);
|
|
p = xdr_encode_hyper(p, lowner->clientid);
|
|
*p++ = cpu_to_be32(20);
|
|
p = xdr_encode_opaque_fixed(p, "lock id:", 8);
|
|
*p++ = cpu_to_be32(lowner->s_dev);
|
|
xdr_encode_hyper(p, lowner->id);
|
|
}
|
|
|
|
/*
|
|
* opcode,type,reclaim,offset,length,new_lock_owner = 32
|
|
* open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
|
|
*/
|
|
static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr);
|
|
p = reserve_space(xdr, 28);
|
|
*p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
|
|
*p++ = cpu_to_be32(args->reclaim);
|
|
p = xdr_encode_hyper(p, args->fl->fl_start);
|
|
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
|
|
*p = cpu_to_be32(args->new_lock_owner);
|
|
if (args->new_lock_owner){
|
|
encode_nfs4_seqid(xdr, args->open_seqid);
|
|
encode_nfs4_stateid(xdr, &args->open_stateid);
|
|
encode_nfs4_seqid(xdr, args->lock_seqid);
|
|
encode_lockowner(xdr, &args->lock_owner);
|
|
}
|
|
else {
|
|
encode_nfs4_stateid(xdr, &args->lock_stateid);
|
|
encode_nfs4_seqid(xdr, args->lock_seqid);
|
|
}
|
|
}
|
|
|
|
static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr);
|
|
p = reserve_space(xdr, 20);
|
|
*p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
|
|
p = xdr_encode_hyper(p, args->fl->fl_start);
|
|
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
|
|
encode_lockowner(xdr, &args->lock_owner);
|
|
}
|
|
|
|
static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr);
|
|
encode_uint32(xdr, nfs4_lock_type(args->fl, 0));
|
|
encode_nfs4_seqid(xdr, args->seqid);
|
|
encode_nfs4_stateid(xdr, &args->stateid);
|
|
p = reserve_space(xdr, 16);
|
|
p = xdr_encode_hyper(p, args->fl->fl_start);
|
|
xdr_encode_hyper(p, nfs4_lock_length(args->fl));
|
|
}
|
|
|
|
static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr);
|
|
encode_lockowner(xdr, lowner);
|
|
}
|
|
|
|
static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr);
|
|
encode_string(xdr, name->len, name->name);
|
|
}
|
|
|
|
static void encode_lookupp(struct xdr_stream *xdr, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_LOOKUPP, decode_lookupp_maxsz, hdr);
|
|
}
|
|
|
|
static void encode_share_access(struct xdr_stream *xdr, u32 share_access)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 8);
|
|
*p++ = cpu_to_be32(share_access);
|
|
*p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
|
|
}
|
|
|
|
static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
|
|
{
|
|
__be32 *p;
|
|
/*
|
|
* opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
|
|
* owner 4 = 32
|
|
*/
|
|
encode_nfs4_seqid(xdr, arg->seqid);
|
|
encode_share_access(xdr, arg->share_access);
|
|
p = reserve_space(xdr, 40);
|
|
p = xdr_encode_hyper(p, arg->clientid);
|
|
*p++ = cpu_to_be32(28);
|
|
p = xdr_encode_opaque_fixed(p, "open id:", 8);
|
|
*p++ = cpu_to_be32(arg->server->s_dev);
|
|
p = xdr_encode_hyper(p, arg->id.uniquifier);
|
|
xdr_encode_hyper(p, arg->id.create_time);
|
|
}
|
|
|
|
static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 4);
|
|
switch(arg->createmode) {
|
|
case NFS4_CREATE_UNCHECKED:
|
|
*p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
|
|
encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
|
|
arg->server, arg->server->attr_bitmask);
|
|
break;
|
|
case NFS4_CREATE_GUARDED:
|
|
*p = cpu_to_be32(NFS4_CREATE_GUARDED);
|
|
encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
|
|
arg->server, arg->server->attr_bitmask);
|
|
break;
|
|
case NFS4_CREATE_EXCLUSIVE:
|
|
*p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
|
|
encode_nfs4_verifier(xdr, &arg->u.verifier);
|
|
break;
|
|
case NFS4_CREATE_EXCLUSIVE4_1:
|
|
*p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
|
|
encode_nfs4_verifier(xdr, &arg->u.verifier);
|
|
encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
|
|
arg->server, arg->server->exclcreat_bitmask);
|
|
}
|
|
}
|
|
|
|
static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 4);
|
|
switch (arg->open_flags & O_CREAT) {
|
|
case 0:
|
|
*p = cpu_to_be32(NFS4_OPEN_NOCREATE);
|
|
break;
|
|
default:
|
|
*p = cpu_to_be32(NFS4_OPEN_CREATE);
|
|
encode_createmode(xdr, arg);
|
|
}
|
|
}
|
|
|
|
static inline void encode_delegation_type(struct xdr_stream *xdr, u32 delegation_type)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 4);
|
|
switch (delegation_type) {
|
|
case NFS4_OPEN_DELEGATE_NONE:
|
|
case NFS4_OPEN_DELEGATE_READ:
|
|
case NFS4_OPEN_DELEGATE_WRITE:
|
|
case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG:
|
|
case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG:
|
|
*p = cpu_to_be32(delegation_type);
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 4);
|
|
*p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
|
|
encode_string(xdr, name->len, name->name);
|
|
}
|
|
|
|
static inline void encode_claim_previous(struct xdr_stream *xdr, u32 type)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 4);
|
|
*p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
|
|
encode_delegation_type(xdr, type);
|
|
}
|
|
|
|
static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 4);
|
|
*p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
|
|
encode_nfs4_stateid(xdr, stateid);
|
|
encode_string(xdr, name->len, name->name);
|
|
}
|
|
|
|
static inline void encode_claim_fh(struct xdr_stream *xdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 4);
|
|
*p = cpu_to_be32(NFS4_OPEN_CLAIM_FH);
|
|
}
|
|
|
|
static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = reserve_space(xdr, 4);
|
|
*p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH);
|
|
encode_nfs4_stateid(xdr, stateid);
|
|
}
|
|
|
|
static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr);
|
|
encode_openhdr(xdr, arg);
|
|
encode_opentype(xdr, arg);
|
|
switch (arg->claim) {
|
|
case NFS4_OPEN_CLAIM_NULL:
|
|
encode_claim_null(xdr, arg->name);
|
|
break;
|
|
case NFS4_OPEN_CLAIM_PREVIOUS:
|
|
encode_claim_previous(xdr, arg->u.delegation_type);
|
|
break;
|
|
case NFS4_OPEN_CLAIM_DELEGATE_CUR:
|
|
encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
|
|
break;
|
|
case NFS4_OPEN_CLAIM_FH:
|
|
encode_claim_fh(xdr);
|
|
break;
|
|
case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
|
|
encode_claim_delegate_cur_fh(xdr, &arg->u.delegation);
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, arg->stateid);
|
|
encode_nfs4_seqid(xdr, arg->seqid);
|
|
}
|
|
|
|
static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, &arg->stateid);
|
|
encode_nfs4_seqid(xdr, arg->seqid);
|
|
encode_share_access(xdr, arg->share_access);
|
|
}
|
|
|
|
static void
|
|
encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr);
|
|
encode_string(xdr, fh->size, fh->data);
|
|
}
|
|
|
|
static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr);
|
|
}
|
|
|
|
static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, &args->stateid);
|
|
|
|
p = reserve_space(xdr, 12);
|
|
p = xdr_encode_hyper(p, args->offset);
|
|
*p = cpu_to_be32(args->count);
|
|
}
|
|
|
|
static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
|
|
{
|
|
uint32_t attrs[3] = {
|
|
FATTR4_WORD0_TYPE
|
|
| FATTR4_WORD0_RDATTR_ERROR,
|
|
FATTR4_WORD1_MOUNTED_ON_FILEID,
|
|
};
|
|
uint32_t dircount = readdir->count;
|
|
uint32_t maxcount = readdir->count;
|
|
__be32 *p, verf[2];
|
|
uint32_t attrlen = 0;
|
|
unsigned int i;
|
|
|
|
if (readdir->plus) {
|
|
attrs[0] |= FATTR4_WORD0_CHANGE
|
|
| FATTR4_WORD0_SIZE
|
|
| FATTR4_WORD0_FSID
|
|
| FATTR4_WORD0_FILEHANDLE
|
|
| FATTR4_WORD0_FILEID;
|
|
attrs[1] |= FATTR4_WORD1_MODE
|
|
| FATTR4_WORD1_NUMLINKS
|
|
| FATTR4_WORD1_OWNER
|
|
| FATTR4_WORD1_OWNER_GROUP
|
|
| FATTR4_WORD1_RAWDEV
|
|
| FATTR4_WORD1_SPACE_USED
|
|
| FATTR4_WORD1_TIME_ACCESS
|
|
| FATTR4_WORD1_TIME_METADATA
|
|
| FATTR4_WORD1_TIME_MODIFY;
|
|
attrs[2] |= FATTR4_WORD2_SECURITY_LABEL;
|
|
}
|
|
/* Use mounted_on_fileid only if the server supports it */
|
|
if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
|
|
attrs[0] |= FATTR4_WORD0_FILEID;
|
|
for (i = 0; i < ARRAY_SIZE(attrs); i++) {
|
|
attrs[i] &= readdir->bitmask[i];
|
|
if (attrs[i] != 0)
|
|
attrlen = i+1;
|
|
}
|
|
|
|
encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr);
|
|
encode_uint64(xdr, readdir->cookie);
|
|
encode_nfs4_verifier(xdr, &readdir->verifier);
|
|
p = reserve_space(xdr, 12 + (attrlen << 2));
|
|
*p++ = cpu_to_be32(dircount);
|
|
*p++ = cpu_to_be32(maxcount);
|
|
*p++ = cpu_to_be32(attrlen);
|
|
for (i = 0; i < attrlen; i++)
|
|
*p++ = cpu_to_be32(attrs[i]);
|
|
memcpy(verf, readdir->verifier.data, sizeof(verf));
|
|
|
|
dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n",
|
|
__func__,
|
|
(unsigned long long)readdir->cookie,
|
|
verf[0], verf[1],
|
|
attrs[0] & readdir->bitmask[0],
|
|
attrs[1] & readdir->bitmask[1],
|
|
attrs[2] & readdir->bitmask[2]);
|
|
}
|
|
|
|
static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr);
|
|
}
|
|
|
|
static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr);
|
|
encode_string(xdr, name->len, name->name);
|
|
}
|
|
|
|
static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr);
|
|
encode_string(xdr, oldname->len, oldname->name);
|
|
encode_string(xdr, newname->len, newname->name);
|
|
}
|
|
|
|
static void encode_renew(struct xdr_stream *xdr, clientid4 clid,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr);
|
|
encode_uint64(xdr, clid);
|
|
}
|
|
|
|
static void
|
|
encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr);
|
|
}
|
|
|
|
static void nfs4_acltype_to_bitmap(enum nfs4_acl_type type, __u32 bitmap[2])
|
|
{
|
|
switch (type) {
|
|
default:
|
|
bitmap[0] = FATTR4_WORD0_ACL;
|
|
bitmap[1] = 0;
|
|
break;
|
|
case NFS4ACL_DACL:
|
|
bitmap[0] = 0;
|
|
bitmap[1] = FATTR4_WORD1_DACL;
|
|
break;
|
|
case NFS4ACL_SACL:
|
|
bitmap[0] = 0;
|
|
bitmap[1] = FATTR4_WORD1_SACL;
|
|
}
|
|
}
|
|
|
|
static void encode_setacl(struct xdr_stream *xdr,
|
|
const struct nfs_setaclargs *arg,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__u32 bitmap[2];
|
|
|
|
nfs4_acltype_to_bitmap(arg->acl_type, bitmap);
|
|
|
|
encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, &zero_stateid);
|
|
xdr_encode_bitmap4(xdr, bitmap, ARRAY_SIZE(bitmap));
|
|
encode_uint32(xdr, arg->acl_len);
|
|
xdr_write_pages(xdr, arg->acl_pages, 0, arg->acl_len);
|
|
}
|
|
|
|
static void
|
|
encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr);
|
|
}
|
|
|
|
static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, &arg->stateid);
|
|
encode_attrs(xdr, arg->iap, arg->label, NULL, server,
|
|
server->attr_bitmask);
|
|
}
|
|
|
|
static void encode_delegattr(struct xdr_stream *xdr,
|
|
const nfs4_stateid *stateid,
|
|
const struct nfs4_delegattr *attr,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
uint32_t bitmap[3] = { 0 };
|
|
uint32_t len = 0;
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_SETATTR, encode_delegattr_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, stateid);
|
|
if (attr->atime_set) {
|
|
bitmap[2] |= FATTR4_WORD2_TIME_DELEG_ACCESS;
|
|
len += (nfstime4_maxsz << 2);
|
|
}
|
|
if (attr->mtime_set) {
|
|
bitmap[2] |= FATTR4_WORD2_TIME_DELEG_MODIFY;
|
|
len += (nfstime4_maxsz << 2);
|
|
}
|
|
xdr_encode_bitmap4(xdr, bitmap, ARRAY_SIZE(bitmap));
|
|
xdr_stream_encode_opaque_inline(xdr, (void **)&p, len);
|
|
if (bitmap[2] & FATTR4_WORD2_TIME_DELEG_ACCESS)
|
|
p = xdr_encode_nfstime4(p, &attr->atime);
|
|
if (bitmap[2] & FATTR4_WORD2_TIME_DELEG_MODIFY)
|
|
p = xdr_encode_nfstime4(p, &attr->mtime);
|
|
}
|
|
|
|
static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr);
|
|
encode_nfs4_verifier(xdr, setclientid->sc_verifier);
|
|
|
|
encode_string(xdr, strlen(setclientid->sc_clnt->cl_owner_id),
|
|
setclientid->sc_clnt->cl_owner_id);
|
|
p = reserve_space(xdr, 4);
|
|
*p = cpu_to_be32(setclientid->sc_prog);
|
|
encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
|
|
encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
|
|
p = reserve_space(xdr, 4);
|
|
*p = cpu_to_be32(setclientid->sc_clnt->cl_cb_ident);
|
|
}
|
|
|
|
static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM,
|
|
decode_setclientid_confirm_maxsz, hdr);
|
|
encode_uint64(xdr, arg->clientid);
|
|
encode_nfs4_verifier(xdr, &arg->confirm);
|
|
}
|
|
|
|
static void encode_write(struct xdr_stream *xdr, const struct nfs_pgio_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, &args->stateid);
|
|
|
|
p = reserve_space(xdr, 16);
|
|
p = xdr_encode_hyper(p, args->offset);
|
|
*p++ = cpu_to_be32(args->stable);
|
|
*p = cpu_to_be32(args->count);
|
|
|
|
xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
|
|
}
|
|
|
|
static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, stateid);
|
|
}
|
|
|
|
static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr);
|
|
encode_string(xdr, name->len, name->name);
|
|
}
|
|
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
/* NFSv4.1 operations */
|
|
static void encode_bind_conn_to_session(struct xdr_stream *xdr,
|
|
const struct nfs41_bind_conn_to_session_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION,
|
|
decode_bind_conn_to_session_maxsz, hdr);
|
|
encode_opaque_fixed(xdr, args->sessionid.data, NFS4_MAX_SESSIONID_LEN);
|
|
p = xdr_reserve_space(xdr, 8);
|
|
*p++ = cpu_to_be32(args->dir);
|
|
*p = (args->use_conn_in_rdma_mode) ? cpu_to_be32(1) : cpu_to_be32(0);
|
|
}
|
|
|
|
static void encode_op_map(struct xdr_stream *xdr, const struct nfs4_op_map *op_map)
|
|
{
|
|
unsigned int i;
|
|
encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS);
|
|
for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++)
|
|
encode_uint32(xdr, op_map->u.words[i]);
|
|
}
|
|
|
|
static void encode_exchange_id(struct xdr_stream *xdr,
|
|
const struct nfs41_exchange_id_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
char impl_name[IMPL_NAME_LIMIT];
|
|
int len = 0;
|
|
|
|
encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
|
|
encode_nfs4_verifier(xdr, &args->verifier);
|
|
|
|
encode_string(xdr, strlen(args->client->cl_owner_id),
|
|
args->client->cl_owner_id);
|
|
|
|
encode_uint32(xdr, args->flags);
|
|
encode_uint32(xdr, args->state_protect.how);
|
|
|
|
switch (args->state_protect.how) {
|
|
case SP4_NONE:
|
|
break;
|
|
case SP4_MACH_CRED:
|
|
encode_op_map(xdr, &args->state_protect.enforce);
|
|
encode_op_map(xdr, &args->state_protect.allow);
|
|
break;
|
|
default:
|
|
WARN_ON_ONCE(1);
|
|
break;
|
|
}
|
|
|
|
if (send_implementation_id &&
|
|
sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 &&
|
|
sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN)
|
|
<= sizeof(impl_name) + 1)
|
|
len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s",
|
|
utsname()->sysname, utsname()->release,
|
|
utsname()->version, utsname()->machine);
|
|
|
|
if (len > 0) {
|
|
encode_uint32(xdr, 1); /* implementation id array length=1 */
|
|
|
|
encode_string(xdr,
|
|
sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1,
|
|
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN);
|
|
encode_string(xdr, len, impl_name);
|
|
/* just send zeros for nii_date - the date is in nii_name */
|
|
p = reserve_space(xdr, 12);
|
|
p = xdr_encode_hyper(p, 0);
|
|
*p = cpu_to_be32(0);
|
|
} else
|
|
encode_uint32(xdr, 0); /* implementation id array length=0 */
|
|
}
|
|
|
|
static void encode_create_session(struct xdr_stream *xdr,
|
|
const struct nfs41_create_session_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
struct nfs_client *clp = args->client;
|
|
struct rpc_clnt *clnt = clp->cl_rpcclient;
|
|
struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
|
|
u32 max_resp_sz_cached;
|
|
|
|
/*
|
|
* Assumes OPEN is the biggest non-idempotent compound.
|
|
* 2 is the verifier.
|
|
*/
|
|
max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 2)
|
|
* XDR_UNIT + RPC_MAX_AUTH_SIZE;
|
|
|
|
encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
|
|
p = reserve_space(xdr, 16 + 2*28 + 20 + clnt->cl_nodelen + 12);
|
|
p = xdr_encode_hyper(p, args->clientid);
|
|
*p++ = cpu_to_be32(args->seqid); /*Sequence id */
|
|
*p++ = cpu_to_be32(args->flags); /*flags */
|
|
|
|
/* Fore Channel */
|
|
*p++ = cpu_to_be32(0); /* header padding size */
|
|
*p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
|
|
*p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
|
|
*p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
|
|
*p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
|
|
*p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
|
|
*p++ = cpu_to_be32(0); /* rdmachannel_attrs */
|
|
|
|
/* Back Channel */
|
|
*p++ = cpu_to_be32(0); /* header padding size */
|
|
*p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
|
|
*p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
|
|
*p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
|
|
*p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
|
|
*p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
|
|
*p++ = cpu_to_be32(0); /* rdmachannel_attrs */
|
|
|
|
*p++ = cpu_to_be32(args->cb_program); /* cb_program */
|
|
*p++ = cpu_to_be32(1);
|
|
*p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
|
|
|
|
/* authsys_parms rfc1831 */
|
|
*p++ = cpu_to_be32(ktime_to_ns(nn->boot_time)); /* stamp */
|
|
p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen);
|
|
*p++ = cpu_to_be32(0); /* UID */
|
|
*p++ = cpu_to_be32(0); /* GID */
|
|
*p = cpu_to_be32(0); /* No more gids */
|
|
}
|
|
|
|
static void encode_destroy_session(struct xdr_stream *xdr,
|
|
const struct nfs4_session *session,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
|
|
encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
|
|
}
|
|
|
|
static void encode_destroy_clientid(struct xdr_stream *xdr,
|
|
uint64_t clientid,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr);
|
|
encode_uint64(xdr, clientid);
|
|
}
|
|
|
|
static void encode_reclaim_complete(struct xdr_stream *xdr,
|
|
const struct nfs41_reclaim_complete_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
|
|
encode_uint32(xdr, args->one_fs);
|
|
}
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
|
|
static void encode_sequence(struct xdr_stream *xdr,
|
|
const struct nfs4_sequence_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
struct nfs4_session *session;
|
|
struct nfs4_slot_table *tp;
|
|
struct nfs4_slot *slot = args->sa_slot;
|
|
__be32 *p;
|
|
|
|
tp = slot->table;
|
|
session = tp->session;
|
|
if (!session)
|
|
return;
|
|
|
|
encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr);
|
|
|
|
/*
|
|
* Sessionid + seqid + slotid + max slotid + cache_this
|
|
*/
|
|
dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
|
|
"max_slotid=%d cache_this=%d\n",
|
|
__func__,
|
|
((u32 *)session->sess_id.data)[0],
|
|
((u32 *)session->sess_id.data)[1],
|
|
((u32 *)session->sess_id.data)[2],
|
|
((u32 *)session->sess_id.data)[3],
|
|
slot->seq_nr, slot->slot_nr,
|
|
tp->highest_used_slotid, args->sa_cache_this);
|
|
p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16);
|
|
p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
|
|
*p++ = cpu_to_be32(slot->seq_nr);
|
|
*p++ = cpu_to_be32(slot->slot_nr);
|
|
*p++ = cpu_to_be32(tp->highest_used_slotid);
|
|
*p = cpu_to_be32(args->sa_cache_this);
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
}
|
|
|
|
#ifdef CONFIG_NFS_V4_1
|
|
static void
|
|
encode_getdeviceinfo(struct xdr_stream *xdr,
|
|
const struct nfs4_getdeviceinfo_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr);
|
|
p = reserve_space(xdr, NFS4_DEVICEID4_SIZE + 4 + 4);
|
|
p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
|
|
NFS4_DEVICEID4_SIZE);
|
|
*p++ = cpu_to_be32(args->pdev->layout_type);
|
|
*p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */
|
|
|
|
p = reserve_space(xdr, 4 + 4);
|
|
*p++ = cpu_to_be32(1); /* bitmap length */
|
|
*p++ = cpu_to_be32(args->notify_types);
|
|
}
|
|
|
|
static void
|
|
encode_layoutget(struct xdr_stream *xdr,
|
|
const struct nfs4_layoutget_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr);
|
|
p = reserve_space(xdr, 36);
|
|
*p++ = cpu_to_be32(0); /* Signal layout available */
|
|
*p++ = cpu_to_be32(args->type);
|
|
*p++ = cpu_to_be32(args->range.iomode);
|
|
p = xdr_encode_hyper(p, args->range.offset);
|
|
p = xdr_encode_hyper(p, args->range.length);
|
|
p = xdr_encode_hyper(p, args->minlength);
|
|
encode_nfs4_stateid(xdr, &args->stateid);
|
|
encode_uint32(xdr, args->maxcount);
|
|
|
|
dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
|
|
__func__,
|
|
args->type,
|
|
args->range.iomode,
|
|
(unsigned long)args->range.offset,
|
|
(unsigned long)args->range.length,
|
|
args->maxcount);
|
|
}
|
|
|
|
static int
|
|
encode_layoutcommit(struct xdr_stream *xdr,
|
|
struct inode *inode,
|
|
const struct nfs4_layoutcommit_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
|
|
NFS_SERVER(args->inode)->pnfs_curr_ld->id);
|
|
|
|
encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr);
|
|
p = reserve_space(xdr, 20);
|
|
/* Only whole file layouts */
|
|
p = xdr_encode_hyper(p, 0); /* offset */
|
|
p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
|
|
*p = cpu_to_be32(0); /* reclaim */
|
|
encode_nfs4_stateid(xdr, &args->stateid);
|
|
if (args->lastbytewritten != U64_MAX) {
|
|
p = reserve_space(xdr, 20);
|
|
*p++ = cpu_to_be32(1); /* newoffset = TRUE */
|
|
p = xdr_encode_hyper(p, args->lastbytewritten);
|
|
} else {
|
|
p = reserve_space(xdr, 12);
|
|
*p++ = cpu_to_be32(0); /* newoffset = FALSE */
|
|
}
|
|
*p++ = cpu_to_be32(0); /* Never send time_modify_changed */
|
|
*p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
|
|
|
|
encode_uint32(xdr, args->layoutupdate_len);
|
|
if (args->layoutupdate_pages)
|
|
xdr_write_pages(xdr, args->layoutupdate_pages, 0,
|
|
args->layoutupdate_len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
encode_layoutreturn(struct xdr_stream *xdr,
|
|
const struct nfs4_layoutreturn_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
__be32 *p;
|
|
|
|
encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
|
|
p = reserve_space(xdr, 16);
|
|
*p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
|
|
*p++ = cpu_to_be32(args->layout_type);
|
|
*p++ = cpu_to_be32(args->range.iomode);
|
|
*p = cpu_to_be32(RETURN_FILE);
|
|
p = reserve_space(xdr, 16);
|
|
p = xdr_encode_hyper(p, args->range.offset);
|
|
p = xdr_encode_hyper(p, args->range.length);
|
|
spin_lock(&args->inode->i_lock);
|
|
encode_nfs4_stateid(xdr, &args->stateid);
|
|
spin_unlock(&args->inode->i_lock);
|
|
if (args->ld_private->ops && args->ld_private->ops->encode)
|
|
args->ld_private->ops->encode(xdr, args, args->ld_private);
|
|
else
|
|
encode_uint32(xdr, 0);
|
|
}
|
|
|
|
static int
|
|
encode_secinfo_no_name(struct xdr_stream *xdr,
|
|
const struct nfs41_secinfo_no_name_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr);
|
|
encode_uint32(xdr, args->style);
|
|
return 0;
|
|
}
|
|
|
|
static void encode_test_stateid(struct xdr_stream *xdr,
|
|
const struct nfs41_test_stateid_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
|
|
encode_uint32(xdr, 1);
|
|
encode_nfs4_stateid(xdr, &args->stateid);
|
|
}
|
|
|
|
static void encode_free_stateid(struct xdr_stream *xdr,
|
|
const struct nfs41_free_stateid_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
|
|
encode_nfs4_stateid(xdr, &args->stateid);
|
|
}
|
|
#else
|
|
static inline void
|
|
encode_layoutreturn(struct xdr_stream *xdr,
|
|
const struct nfs4_layoutreturn_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
}
|
|
|
|
static void
|
|
encode_layoutget(struct xdr_stream *xdr,
|
|
const struct nfs4_layoutget_args *args,
|
|
struct compound_hdr *hdr)
|
|
{
|
|
}
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
|
|
/*
|
|
* END OF "GENERIC" ENCODE ROUTINES.
|
|
*/
|
|
|
|
static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
|
|
{
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
struct nfs4_session *session = args->sa_slot->table->session;
|
|
if (session)
|
|
return session->clp->cl_mvops->minor_version;
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Encode an ACCESS request
|
|
*/
|
|
static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_accessargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_access(xdr, args->access, &hdr);
|
|
if (args->bitmask)
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode LOOKUP request
|
|
*/
|
|
static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_lookup_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->dir_fh, &hdr);
|
|
encode_lookup(xdr, args->name, &hdr);
|
|
encode_getfh(xdr, &hdr);
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode LOOKUPP request
|
|
*/
|
|
static void nfs4_xdr_enc_lookupp(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_lookupp_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_lookupp(xdr, &hdr);
|
|
encode_getfh(xdr, &hdr);
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode LOOKUP_ROOT request
|
|
*/
|
|
static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_lookup_root_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putrootfh(xdr, &hdr);
|
|
encode_getfh(xdr, &hdr);
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode REMOVE request
|
|
*/
|
|
static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_removeargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_remove(xdr, &args->name, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode RENAME request
|
|
*/
|
|
static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_renameargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->old_dir, &hdr);
|
|
encode_savefh(xdr, &hdr);
|
|
encode_putfh(xdr, args->new_dir, &hdr);
|
|
encode_rename(xdr, args->old_name, args->new_name, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode LINK request
|
|
*/
|
|
static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_link_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_savefh(xdr, &hdr);
|
|
encode_putfh(xdr, args->dir_fh, &hdr);
|
|
encode_link(xdr, args->name, &hdr);
|
|
encode_restorefh(xdr, &hdr);
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode CREATE request
|
|
*/
|
|
static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_create_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->dir_fh, &hdr);
|
|
encode_create(xdr, args, &hdr);
|
|
encode_getfh(xdr, &hdr);
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode SYMLINK request
|
|
*/
|
|
static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_create_arg *args = data;
|
|
|
|
nfs4_xdr_enc_create(req, xdr, args);
|
|
}
|
|
|
|
/*
|
|
* Encode GETATTR request
|
|
*/
|
|
static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_getattr_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a CLOSE request
|
|
*/
|
|
static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_closeargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
if (args->lr_args)
|
|
encode_layoutreturn(xdr, args->lr_args, &hdr);
|
|
if (args->bitmask != NULL)
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_close(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode an OPEN request
|
|
*/
|
|
static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_openargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_open(xdr, args, &hdr);
|
|
encode_getfh(xdr, &hdr);
|
|
if (args->access)
|
|
encode_access(xdr, args->access, &hdr);
|
|
encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
|
|
if (args->lg_args) {
|
|
encode_layoutget(xdr, args->lg_args, &hdr);
|
|
rpc_prepare_reply_pages(req, args->lg_args->layout.pages, 0,
|
|
args->lg_args->layout.pglen,
|
|
hdr.replen - pagepad_maxsz);
|
|
}
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode an OPEN_CONFIRM request
|
|
*/
|
|
static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_open_confirmargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.nops = 0,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_open_confirm(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode an OPEN request with no attributes.
|
|
*/
|
|
static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_openargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_open(xdr, args, &hdr);
|
|
if (args->access)
|
|
encode_access(xdr, args->access, &hdr);
|
|
encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
|
|
if (args->lg_args) {
|
|
encode_layoutget(xdr, args->lg_args, &hdr);
|
|
rpc_prepare_reply_pages(req, args->lg_args->layout.pages, 0,
|
|
args->lg_args->layout.pglen,
|
|
hdr.replen - pagepad_maxsz);
|
|
}
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode an OPEN_DOWNGRADE request
|
|
*/
|
|
static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_closeargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
if (args->lr_args)
|
|
encode_layoutreturn(xdr, args->lr_args, &hdr);
|
|
encode_open_downgrade(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a LOCK request
|
|
*/
|
|
static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_lock_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_lock(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a LOCKT request
|
|
*/
|
|
static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_lockt_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_lockt(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a LOCKU request
|
|
*/
|
|
static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_locku_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_locku(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_release_lockowner_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = 0,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_release_lockowner(xdr, &args->lock_owner, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a READLINK request
|
|
*/
|
|
static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_readlink *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_readlink(xdr, args, req, &hdr);
|
|
|
|
rpc_prepare_reply_pages(req, args->pages, args->pgbase,
|
|
args->pglen, hdr.replen - pagepad_maxsz);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a READDIR request
|
|
*/
|
|
static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_readdir_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_readdir(xdr, args, req, &hdr);
|
|
|
|
rpc_prepare_reply_pages(req, args->pages, args->pgbase,
|
|
args->count, hdr.replen - pagepad_maxsz);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a READ request
|
|
*/
|
|
static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_pgio_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_read(xdr, args, &hdr);
|
|
|
|
rpc_prepare_reply_pages(req, args->pages, args->pgbase,
|
|
args->count, hdr.replen - pagepad_maxsz);
|
|
req->rq_rcv_buf.flags |= XDRBUF_READ;
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode an SETATTR request
|
|
*/
|
|
static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_setattrargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_setattr(xdr, args, args->server, &hdr);
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a GETACL request
|
|
*/
|
|
static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_getaclargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
__u32 nfs4_acl_bitmap[2];
|
|
uint32_t replen;
|
|
|
|
nfs4_acltype_to_bitmap(args->acl_type, nfs4_acl_bitmap);
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
replen = hdr.replen + op_decode_hdr_maxsz;
|
|
encode_getattr(xdr, nfs4_acl_bitmap, NULL,
|
|
ARRAY_SIZE(nfs4_acl_bitmap), &hdr);
|
|
|
|
rpc_prepare_reply_pages(req, args->acl_pages, 0,
|
|
args->acl_len, replen);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode a WRITE request
|
|
*/
|
|
static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_pgio_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_write(xdr, args, &hdr);
|
|
req->rq_snd_buf.flags |= XDRBUF_WRITE;
|
|
if (args->bitmask)
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a COMMIT request
|
|
*/
|
|
static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_commitargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_commit(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* FSINFO request
|
|
*/
|
|
static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_fsinfo_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_fsinfo(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a PATHCONF request
|
|
*/
|
|
static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_pathconf_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_getattr(xdr, nfs4_pathconf_bitmap, args->bitmask,
|
|
ARRAY_SIZE(nfs4_pathconf_bitmap), &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a STATFS request
|
|
*/
|
|
static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_statfs_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_getattr(xdr, nfs4_statfs_bitmap, args->bitmask,
|
|
ARRAY_SIZE(nfs4_statfs_bitmap), &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* GETATTR_BITMAP request
|
|
*/
|
|
static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_server_caps_arg *args = data;
|
|
const u32 *bitmask = args->bitmask;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fhandle, &hdr);
|
|
encode_getattr(xdr, bitmask, NULL, 3, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a RENEW request
|
|
*/
|
|
static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
|
|
{
|
|
const struct nfs_client *clp = data;
|
|
struct compound_hdr hdr = {
|
|
.nops = 0,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_renew(xdr, clp->cl_clientid, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a SETCLIENTID request
|
|
*/
|
|
static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_setclientid *sc = data;
|
|
struct compound_hdr hdr = {
|
|
.nops = 0,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_setclientid(xdr, sc, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a SETCLIENTID_CONFIRM request
|
|
*/
|
|
static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_setclientid_res *arg = data;
|
|
struct compound_hdr hdr = {
|
|
.nops = 0,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_setclientid_confirm(xdr, arg, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* DELEGRETURN request
|
|
*/
|
|
static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_delegreturnargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fhandle, &hdr);
|
|
if (args->lr_args)
|
|
encode_layoutreturn(xdr, args->lr_args, &hdr);
|
|
if (args->sattr_args)
|
|
encode_delegattr(xdr, args->stateid, args->sattr_args, &hdr);
|
|
if (args->bitmask)
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_delegreturn(xdr, args->stateid, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode FS_LOCATIONS request
|
|
*/
|
|
static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_fs_locations_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
uint32_t replen;
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
if (args->migration) {
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
replen = hdr.replen;
|
|
encode_fs_locations(xdr, args->bitmask, &hdr);
|
|
if (args->renew)
|
|
encode_renew(xdr, args->clientid, &hdr);
|
|
} else {
|
|
encode_putfh(xdr, args->dir_fh, &hdr);
|
|
encode_lookup(xdr, args->name, &hdr);
|
|
replen = hdr.replen;
|
|
encode_fs_locations(xdr, args->bitmask, &hdr);
|
|
}
|
|
|
|
rpc_prepare_reply_pages(req, (struct page **)&args->page, 0,
|
|
PAGE_SIZE, replen);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode SECINFO request
|
|
*/
|
|
static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_secinfo_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->dir_fh, &hdr);
|
|
encode_secinfo(xdr, args->name, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode FSID_PRESENT request
|
|
*/
|
|
static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_fsid_present_arg *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_getfh(xdr, &hdr);
|
|
if (args->renew)
|
|
encode_renew(xdr, args->clientid, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
/*
|
|
* BIND_CONN_TO_SESSION request
|
|
*/
|
|
static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs41_bind_conn_to_session_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = args->client->cl_mvops->minor_version,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_bind_conn_to_session(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* EXCHANGE_ID request
|
|
*/
|
|
static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs41_exchange_id_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = args->client->cl_mvops->minor_version,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_exchange_id(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a CREATE_SESSION request
|
|
*/
|
|
static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs41_create_session_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = args->client->cl_mvops->minor_version,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_create_session(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a DESTROY_SESSION request
|
|
*/
|
|
static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_session *session = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = session->clp->cl_mvops->minor_version,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_destroy_session(xdr, session, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a DESTROY_CLIENTID request
|
|
*/
|
|
static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_client *clp = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = clp->cl_mvops->minor_version,
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_destroy_clientid(xdr, clp->cl_clientid, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* a SEQUENCE request
|
|
*/
|
|
static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_sequence_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* a GET_LEASE_TIME request
|
|
*/
|
|
static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_get_lease_time_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
|
|
};
|
|
const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->la_seq_args, &hdr);
|
|
encode_putrootfh(xdr, &hdr);
|
|
encode_fsinfo(xdr, lease_bitmap, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
#ifdef CONFIG_NFS_V4_1
|
|
|
|
/*
|
|
* a RECLAIM_COMPLETE request
|
|
*/
|
|
static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs41_reclaim_complete_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args)
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_reclaim_complete(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode GETDEVICEINFO request
|
|
*/
|
|
static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_getdeviceinfo_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
uint32_t replen;
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
|
|
replen = hdr.replen + op_decode_hdr_maxsz + 2;
|
|
|
|
encode_getdeviceinfo(xdr, args, &hdr);
|
|
|
|
/* set up reply kvec. device_addr4 opaque data is read into the
|
|
* pages */
|
|
rpc_prepare_reply_pages(req, args->pdev->pages, args->pdev->pgbase,
|
|
args->pdev->pglen, replen);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode LAYOUTGET request
|
|
*/
|
|
static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_layoutget_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, NFS_FH(args->inode), &hdr);
|
|
encode_layoutget(xdr, args, &hdr);
|
|
|
|
rpc_prepare_reply_pages(req, args->layout.pages, 0,
|
|
args->layout.pglen, hdr.replen - pagepad_maxsz);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode LAYOUTCOMMIT request
|
|
*/
|
|
static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *priv)
|
|
{
|
|
const struct nfs4_layoutcommit_args *args = priv;
|
|
struct nfs4_layoutcommit_data *data =
|
|
container_of(args, struct nfs4_layoutcommit_data, args);
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, NFS_FH(args->inode), &hdr);
|
|
encode_layoutcommit(xdr, data->args.inode, args, &hdr);
|
|
encode_getfattr(xdr, args->bitmask, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode LAYOUTRETURN request
|
|
*/
|
|
static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs4_layoutreturn_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, NFS_FH(args->inode), &hdr);
|
|
encode_layoutreturn(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode SECINFO_NO_NAME request
|
|
*/
|
|
static void nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs41_secinfo_no_name_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putrootfh(xdr, &hdr);
|
|
encode_secinfo_no_name(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode TEST_STATEID request
|
|
*/
|
|
static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs41_test_stateid_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_test_stateid(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Encode FREE_STATEID request
|
|
*/
|
|
static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs41_free_stateid_args *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_free_stateid(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
|
|
static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
|
|
{
|
|
ssize_t ret = xdr_stream_decode_opaque_inline(xdr, (void **)string,
|
|
NFS4_OPAQUE_LIMIT);
|
|
if (unlikely(ret < 0))
|
|
return -EIO;
|
|
*len = ret;
|
|
return 0;
|
|
}
|
|
|
|
static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
|
|
{
|
|
ssize_t ret;
|
|
void *ptr;
|
|
u32 tmp;
|
|
|
|
if (xdr_stream_decode_u32(xdr, &tmp) < 0)
|
|
return -EIO;
|
|
hdr->status = tmp;
|
|
|
|
ret = xdr_stream_decode_opaque_inline(xdr, &ptr, NFS4_OPAQUE_LIMIT);
|
|
if (ret < 0)
|
|
return -EIO;
|
|
hdr->taglen = ret;
|
|
hdr->tag = ptr;
|
|
|
|
if (xdr_stream_decode_u32(xdr, &tmp) < 0)
|
|
return -EIO;
|
|
hdr->nops = tmp;
|
|
if (unlikely(hdr->nops < 1))
|
|
return nfs4_stat_to_errno(hdr->status);
|
|
return 0;
|
|
}
|
|
|
|
static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected,
|
|
int *nfs_retval)
|
|
{
|
|
__be32 *p;
|
|
uint32_t opnum;
|
|
int32_t nfserr;
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
goto out_overflow;
|
|
opnum = be32_to_cpup(p++);
|
|
if (unlikely(opnum != expected))
|
|
goto out_bad_operation;
|
|
if (unlikely(*p != cpu_to_be32(NFS_OK)))
|
|
goto out_status;
|
|
*nfs_retval = 0;
|
|
return true;
|
|
out_status:
|
|
nfserr = be32_to_cpup(p);
|
|
trace_nfs4_xdr_status(xdr, opnum, nfserr);
|
|
*nfs_retval = nfs4_stat_to_errno(nfserr);
|
|
return true;
|
|
out_bad_operation:
|
|
trace_nfs4_xdr_bad_operation(xdr, opnum, expected);
|
|
*nfs_retval = -EREMOTEIO;
|
|
return false;
|
|
out_overflow:
|
|
*nfs_retval = -EIO;
|
|
return false;
|
|
}
|
|
|
|
static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
|
|
{
|
|
int retval;
|
|
|
|
__decode_op_hdr(xdr, expected, &retval);
|
|
return retval;
|
|
}
|
|
|
|
/* Dummy routine */
|
|
static int decode_ace(struct xdr_stream *xdr, void *ace)
|
|
{
|
|
__be32 *p;
|
|
unsigned int strlen;
|
|
char *str;
|
|
|
|
p = xdr_inline_decode(xdr, 12);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
return decode_opaque_inline(xdr, &strlen, &str);
|
|
}
|
|
|
|
static ssize_t
|
|
decode_bitmap4(struct xdr_stream *xdr, uint32_t *bitmap, size_t sz)
|
|
{
|
|
ssize_t ret;
|
|
|
|
ret = xdr_stream_decode_uint32_array(xdr, bitmap, sz);
|
|
if (likely(ret >= 0))
|
|
return ret;
|
|
if (ret != -EMSGSIZE)
|
|
return -EIO;
|
|
return sz;
|
|
}
|
|
|
|
static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
|
|
{
|
|
ssize_t ret;
|
|
ret = decode_bitmap4(xdr, bitmap, 3);
|
|
return ret < 0 ? ret : 0;
|
|
}
|
|
|
|
static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*attrlen = be32_to_cpup(p);
|
|
*savep = xdr_stream_pos(xdr);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
|
|
{
|
|
if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
|
|
int ret;
|
|
ret = decode_attr_bitmap(xdr, bitmask);
|
|
if (unlikely(ret < 0))
|
|
return ret;
|
|
bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
|
|
} else
|
|
bitmask[0] = bitmask[1] = bitmask[2] = 0;
|
|
dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
|
|
bitmask[0], bitmask[1], bitmask[2]);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
|
|
{
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*type = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*type = be32_to_cpup(p);
|
|
if (*type < NF4REG || *type > NF4NAMEDATTR) {
|
|
dprintk("%s: bad type %d\n", __func__, *type);
|
|
return -EIO;
|
|
}
|
|
bitmap[0] &= ~FATTR4_WORD0_TYPE;
|
|
ret = NFS_ATTR_FATTR_TYPE;
|
|
}
|
|
dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_fh_expire_type(struct xdr_stream *xdr,
|
|
uint32_t *bitmap, uint32_t *type)
|
|
{
|
|
__be32 *p;
|
|
|
|
*type = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*type = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE;
|
|
}
|
|
dprintk("%s: expire type=0x%x\n", __func__, *type);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
|
|
{
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*change = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, change);
|
|
bitmap[0] &= ~FATTR4_WORD0_CHANGE;
|
|
ret = NFS_ATTR_FATTR_CHANGE;
|
|
}
|
|
dprintk("%s: change attribute=%Lu\n", __func__,
|
|
(unsigned long long)*change);
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
|
|
{
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*size = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, size);
|
|
bitmap[0] &= ~FATTR4_WORD0_SIZE;
|
|
ret = NFS_ATTR_FATTR_SIZE;
|
|
}
|
|
dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
|
|
}
|
|
dprintk("%s: link support=%s\n", __func__, str_false_true(*res == 0));
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
|
|
}
|
|
dprintk("%s: symlink support=%s\n", __func__, str_false_true(*res == 0));
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
|
|
{
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
fsid->major = 0;
|
|
fsid->minor = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
|
|
p = xdr_inline_decode(xdr, 16);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
p = xdr_decode_hyper(p, &fsid->major);
|
|
xdr_decode_hyper(p, &fsid->minor);
|
|
bitmap[0] &= ~FATTR4_WORD0_FSID;
|
|
ret = NFS_ATTR_FATTR_FSID;
|
|
}
|
|
dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
|
|
(unsigned long long)fsid->major,
|
|
(unsigned long long)fsid->minor);
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
*res = 60;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
|
|
}
|
|
dprintk("%s: lease time=%u\n", __func__, (unsigned int)*res);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
|
|
*res = -be32_to_cpup(p);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_exclcreat_supported(struct xdr_stream *xdr,
|
|
uint32_t *bitmap, uint32_t *bitmask)
|
|
{
|
|
if (likely(bitmap[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT)) {
|
|
int ret;
|
|
ret = decode_attr_bitmap(xdr, bitmask);
|
|
if (unlikely(ret < 0))
|
|
return ret;
|
|
bitmap[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT;
|
|
} else
|
|
bitmask[0] = bitmask[1] = bitmask[2] = 0;
|
|
dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
|
|
bitmask[0], bitmask[1], bitmask[2]);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
|
|
{
|
|
__be32 *p;
|
|
u32 len;
|
|
|
|
if (fh != NULL)
|
|
memset(fh, 0, sizeof(*fh));
|
|
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
len = be32_to_cpup(p);
|
|
if (len > NFS4_FHSIZE || len == 0) {
|
|
trace_nfs4_xdr_bad_filehandle(xdr, OP_READDIR,
|
|
NFS4ERR_BADHANDLE);
|
|
return -EREMOTEIO;
|
|
}
|
|
p = xdr_inline_decode(xdr, len);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
if (fh != NULL) {
|
|
memcpy(fh->data, p, len);
|
|
fh->size = len;
|
|
}
|
|
bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
|
|
}
|
|
dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_case_insensitive(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_CASE_INSENSITIVE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_CASE_INSENSITIVE)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_CASE_INSENSITIVE;
|
|
}
|
|
dprintk("%s: case_insensitive=%s\n", __func__, str_false_true(*res == 0));
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_case_preserving(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_CASE_PRESERVING - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_CASE_PRESERVING)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_CASE_PRESERVING;
|
|
}
|
|
dprintk("%s: case_preserving=%s\n", __func__, str_false_true(*res == 0));
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
|
|
{
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*fileid = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, fileid);
|
|
bitmap[0] &= ~FATTR4_WORD0_FILEID;
|
|
ret = NFS_ATTR_FATTR_FILEID;
|
|
}
|
|
dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
|
|
{
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*fileid = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, fileid);
|
|
bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
|
|
ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
|
|
}
|
|
dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, res);
|
|
bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
|
|
}
|
|
dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, res);
|
|
bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
|
|
}
|
|
dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, res);
|
|
bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
|
|
}
|
|
dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
|
|
{
|
|
u32 n;
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
n = be32_to_cpup(p);
|
|
if (n == 0)
|
|
goto root_path;
|
|
dprintk("pathname4: ");
|
|
if (n > NFS4_PATHNAME_MAXCOMPONENTS) {
|
|
dprintk("cannot parse %d components in path\n", n);
|
|
goto out_eio;
|
|
}
|
|
for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) {
|
|
struct nfs4_string *component = &path->components[path->ncomponents];
|
|
status = decode_opaque_inline(xdr, &component->len, &component->data);
|
|
if (unlikely(status != 0))
|
|
goto out_eio;
|
|
ifdebug (XDR)
|
|
pr_cont("%s%.*s ",
|
|
(path->ncomponents != n ? "/ " : ""),
|
|
component->len, component->data);
|
|
}
|
|
out:
|
|
return status;
|
|
root_path:
|
|
/* a root pathname is sent as a zero component4 */
|
|
path->ncomponents = 1;
|
|
path->components[0].len=0;
|
|
path->components[0].data=NULL;
|
|
dprintk("pathname4: /\n");
|
|
goto out;
|
|
out_eio:
|
|
dprintk(" status %d", status);
|
|
status = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
|
|
{
|
|
int n;
|
|
__be32 *p;
|
|
int status = -EIO;
|
|
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
|
|
goto out;
|
|
status = 0;
|
|
if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
|
|
goto out;
|
|
bitmap[0] &= ~FATTR4_WORD0_FS_LOCATIONS;
|
|
status = -EIO;
|
|
/* Ignore borken servers that return unrequested attrs */
|
|
if (unlikely(res == NULL))
|
|
goto out;
|
|
dprintk("%s: fsroot:\n", __func__);
|
|
status = decode_pathname(xdr, &res->fs_path);
|
|
if (unlikely(status != 0))
|
|
goto out;
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
goto out_eio;
|
|
n = be32_to_cpup(p);
|
|
for (res->nlocations = 0; res->nlocations < n; res->nlocations++) {
|
|
u32 m;
|
|
struct nfs4_fs_location *loc;
|
|
|
|
if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES)
|
|
break;
|
|
loc = &res->locations[res->nlocations];
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
goto out_eio;
|
|
m = be32_to_cpup(p);
|
|
|
|
dprintk("%s: servers:\n", __func__);
|
|
for (loc->nservers = 0; loc->nservers < m; loc->nservers++) {
|
|
struct nfs4_string *server;
|
|
|
|
if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) {
|
|
unsigned int i;
|
|
dprintk("%s: using first %u of %u servers "
|
|
"returned for location %u\n",
|
|
__func__,
|
|
NFS4_FS_LOCATION_MAXSERVERS,
|
|
m, res->nlocations);
|
|
for (i = loc->nservers; i < m; i++) {
|
|
unsigned int len;
|
|
char *data;
|
|
status = decode_opaque_inline(xdr, &len, &data);
|
|
if (unlikely(status != 0))
|
|
goto out_eio;
|
|
}
|
|
break;
|
|
}
|
|
server = &loc->servers[loc->nservers];
|
|
status = decode_opaque_inline(xdr, &server->len, &server->data);
|
|
if (unlikely(status != 0))
|
|
goto out_eio;
|
|
dprintk("%s ", server->data);
|
|
}
|
|
status = decode_pathname(xdr, &loc->rootpath);
|
|
if (unlikely(status != 0))
|
|
goto out_eio;
|
|
}
|
|
if (res->nlocations != 0)
|
|
status = NFS_ATTR_FATTR_V4_LOCATIONS;
|
|
out:
|
|
dprintk("%s: fs_locations done, error = %d\n", __func__, status);
|
|
return status;
|
|
out_eio:
|
|
status = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, res);
|
|
bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
|
|
}
|
|
dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*maxlink = 1;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*maxlink = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
|
|
}
|
|
dprintk("%s: maxlink=%u\n", __func__, *maxlink);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*maxname = 1024;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*maxname = be32_to_cpup(p);
|
|
bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
|
|
}
|
|
dprintk("%s: maxname=%u\n", __func__, *maxname);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 1024;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
|
|
uint64_t maxread;
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, &maxread);
|
|
if (maxread > 0x7FFFFFFF)
|
|
maxread = 0x7FFFFFFF;
|
|
*res = (uint32_t)maxread;
|
|
bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
|
|
}
|
|
dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 1024;
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
|
|
uint64_t maxwrite;
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, &maxwrite);
|
|
if (maxwrite > 0x7FFFFFFF)
|
|
maxwrite = 0x7FFFFFFF;
|
|
*res = (uint32_t)maxwrite;
|
|
bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
|
|
}
|
|
dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
|
|
{
|
|
uint32_t tmp;
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*mode = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
tmp = be32_to_cpup(p);
|
|
*mode = tmp & ~S_IFMT;
|
|
bitmap[1] &= ~FATTR4_WORD1_MODE;
|
|
ret = NFS_ATTR_FATTR_MODE;
|
|
}
|
|
dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
|
|
{
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*nlink = 1;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*nlink = be32_to_cpup(p);
|
|
bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
|
|
ret = NFS_ATTR_FATTR_NLINK;
|
|
}
|
|
dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t decode_nfs4_string(struct xdr_stream *xdr,
|
|
struct nfs4_string *name, gfp_t gfp_flags)
|
|
{
|
|
ssize_t ret;
|
|
|
|
ret = xdr_stream_decode_string_dup(xdr, &name->data,
|
|
XDR_MAX_NETOBJ, gfp_flags);
|
|
name->len = 0;
|
|
if (ret > 0)
|
|
name->len = ret;
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
const struct nfs_server *server, kuid_t *uid,
|
|
struct nfs4_string *owner_name)
|
|
{
|
|
ssize_t len;
|
|
char *p;
|
|
|
|
*uid = make_kuid(&init_user_ns, -2);
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
|
|
return -EIO;
|
|
if (!(bitmap[1] & FATTR4_WORD1_OWNER))
|
|
return 0;
|
|
bitmap[1] &= ~FATTR4_WORD1_OWNER;
|
|
|
|
if (owner_name != NULL) {
|
|
len = decode_nfs4_string(xdr, owner_name, GFP_NOIO);
|
|
if (len <= 0)
|
|
goto out;
|
|
dprintk("%s: name=%s\n", __func__, owner_name->data);
|
|
return NFS_ATTR_FATTR_OWNER_NAME;
|
|
} else {
|
|
len = xdr_stream_decode_opaque_inline(xdr, (void **)&p,
|
|
XDR_MAX_NETOBJ);
|
|
if (len <= 0 || nfs_map_name_to_uid(server, p, len, uid) != 0)
|
|
goto out;
|
|
dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid));
|
|
return NFS_ATTR_FATTR_OWNER;
|
|
}
|
|
out:
|
|
if (len == -EBADMSG)
|
|
return -EIO;
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
const struct nfs_server *server, kgid_t *gid,
|
|
struct nfs4_string *group_name)
|
|
{
|
|
ssize_t len;
|
|
char *p;
|
|
|
|
*gid = make_kgid(&init_user_ns, -2);
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
|
|
return -EIO;
|
|
if (!(bitmap[1] & FATTR4_WORD1_OWNER_GROUP))
|
|
return 0;
|
|
bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
|
|
|
|
if (group_name != NULL) {
|
|
len = decode_nfs4_string(xdr, group_name, GFP_NOIO);
|
|
if (len <= 0)
|
|
goto out;
|
|
dprintk("%s: name=%s\n", __func__, group_name->data);
|
|
return NFS_ATTR_FATTR_GROUP_NAME;
|
|
} else {
|
|
len = xdr_stream_decode_opaque_inline(xdr, (void **)&p,
|
|
XDR_MAX_NETOBJ);
|
|
if (len <= 0 || nfs_map_group_to_gid(server, p, len, gid) != 0)
|
|
goto out;
|
|
dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid));
|
|
return NFS_ATTR_FATTR_GROUP;
|
|
}
|
|
out:
|
|
if (len == -EBADMSG)
|
|
return -EIO;
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
|
|
{
|
|
uint32_t major = 0, minor = 0;
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*rdev = MKDEV(0,0);
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
|
|
dev_t tmp;
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
major = be32_to_cpup(p++);
|
|
minor = be32_to_cpup(p);
|
|
tmp = MKDEV(major, minor);
|
|
if (MAJOR(tmp) == major && MINOR(tmp) == minor)
|
|
*rdev = tmp;
|
|
bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
|
|
ret = NFS_ATTR_FATTR_RDEV;
|
|
}
|
|
dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
|
|
return ret;
|
|
}
|
|
|
|
static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, res);
|
|
bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
|
|
}
|
|
dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, res);
|
|
bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
|
|
}
|
|
dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, res);
|
|
bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
|
|
}
|
|
dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
|
|
{
|
|
__be32 *p;
|
|
int ret = 0;
|
|
|
|
*used = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, used);
|
|
bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
|
|
ret = NFS_ATTR_FATTR_SPACE_USED;
|
|
}
|
|
dprintk("%s: space used=%Lu\n", __func__,
|
|
(unsigned long long)*used);
|
|
return ret;
|
|
}
|
|
|
|
static __be32 *
|
|
xdr_decode_nfstime4(__be32 *p, struct timespec64 *t)
|
|
{
|
|
__u64 sec;
|
|
|
|
p = xdr_decode_hyper(p, &sec);
|
|
t-> tv_sec = sec;
|
|
t->tv_nsec = be32_to_cpup(p++);
|
|
return p;
|
|
}
|
|
|
|
static int decode_attr_time(struct xdr_stream *xdr, struct timespec64 *time)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = xdr_inline_decode(xdr, nfstime4_maxsz << 2);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_nfstime4(p, time);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec64 *time)
|
|
{
|
|
int status = 0;
|
|
|
|
time->tv_sec = 0;
|
|
time->tv_nsec = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
|
|
status = decode_attr_time(xdr, time);
|
|
if (status == 0)
|
|
status = NFS_ATTR_FATTR_ATIME;
|
|
bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
|
|
}
|
|
dprintk("%s: atime=%lld\n", __func__, time->tv_sec);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec64 *time)
|
|
{
|
|
int status = 0;
|
|
|
|
time->tv_sec = 0;
|
|
time->tv_nsec = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
|
|
status = decode_attr_time(xdr, time);
|
|
if (status == 0)
|
|
status = NFS_ATTR_FATTR_CTIME;
|
|
bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
|
|
}
|
|
dprintk("%s: ctime=%lld\n", __func__, time->tv_sec);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
struct timespec64 *time)
|
|
{
|
|
int status = 0;
|
|
|
|
time->tv_sec = 0;
|
|
time->tv_nsec = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
|
|
status = decode_attr_time(xdr, time);
|
|
bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
|
|
}
|
|
dprintk("%s: time_delta=%lld %ld\n", __func__, time->tv_sec,
|
|
time->tv_nsec);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
struct nfs4_label *label)
|
|
{
|
|
uint32_t pi = 0;
|
|
uint32_t lfs = 0;
|
|
__u32 len;
|
|
__be32 *p;
|
|
int status = 0;
|
|
|
|
if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
lfs = be32_to_cpup(p++);
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
pi = be32_to_cpup(p++);
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
len = be32_to_cpup(p++);
|
|
p = xdr_inline_decode(xdr, len);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
|
|
if (len < NFS4_MAXLABELLEN) {
|
|
if (label && label->len) {
|
|
if (label->len < len)
|
|
return -ERANGE;
|
|
memcpy(label->label, p, len);
|
|
label->len = len;
|
|
label->pi = pi;
|
|
label->lfs = lfs;
|
|
status = NFS_ATTR_FATTR_V4_SECURITY_LABEL;
|
|
}
|
|
} else
|
|
printk(KERN_WARNING "%s: label too long (%u)!\n",
|
|
__func__, len);
|
|
if (label && label->label)
|
|
dprintk("%s: label=%.*s, len=%d, PI=%d, LFS=%d\n",
|
|
__func__, label->len, (char *)label->label,
|
|
label->len, label->pi, label->lfs);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec64 *time)
|
|
{
|
|
int status = 0;
|
|
|
|
time->tv_sec = 0;
|
|
time->tv_nsec = 0;
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
|
|
status = decode_attr_time(xdr, time);
|
|
if (status == 0)
|
|
status = NFS_ATTR_FATTR_MTIME;
|
|
bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
|
|
}
|
|
dprintk("%s: mtime=%lld\n", __func__, time->tv_sec);
|
|
return status;
|
|
}
|
|
|
|
static int decode_attr_xattrsupport(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
*res = 0;
|
|
if (unlikely(bitmap[2] & (FATTR4_WORD2_XATTR_SUPPORT - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[2] & FATTR4_WORD2_XATTR_SUPPORT)) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[2] &= ~FATTR4_WORD2_XATTR_SUPPORT;
|
|
}
|
|
dprintk("%s: XATTR support=%s\n", __func__, str_false_true(*res == 0));
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_open_arguments(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
struct nfs4_open_caps *res)
|
|
{
|
|
memset(res, 0, sizeof(*res));
|
|
if (unlikely(bitmap[2] & (FATTR4_WORD2_OPEN_ARGUMENTS - 1U)))
|
|
return -EIO;
|
|
if (likely(bitmap[2] & FATTR4_WORD2_OPEN_ARGUMENTS)) {
|
|
if (decode_bitmap4(xdr, res->oa_share_access, ARRAY_SIZE(res->oa_share_access)) < 0)
|
|
return -EIO;
|
|
if (decode_bitmap4(xdr, res->oa_share_deny, ARRAY_SIZE(res->oa_share_deny)) < 0)
|
|
return -EIO;
|
|
if (decode_bitmap4(xdr, res->oa_share_access_want, ARRAY_SIZE(res->oa_share_access_want)) < 0)
|
|
return -EIO;
|
|
if (decode_bitmap4(xdr, res->oa_open_claim, ARRAY_SIZE(res->oa_open_claim)) < 0)
|
|
return -EIO;
|
|
if (decode_bitmap4(xdr, res->oa_createmode, ARRAY_SIZE(res->oa_createmode)) < 0)
|
|
return -EIO;
|
|
bitmap[2] &= ~FATTR4_WORD2_OPEN_ARGUMENTS;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen)
|
|
{
|
|
unsigned int attrwords = XDR_QUADLEN(attrlen);
|
|
unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2;
|
|
|
|
if (unlikely(attrwords != nwords)) {
|
|
dprintk("%s: server returned incorrect attribute length: "
|
|
"%u %c %u\n",
|
|
__func__,
|
|
attrwords << 2,
|
|
(attrwords < nwords) ? '<' : '>',
|
|
nwords << 2);
|
|
return -EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = xdr_inline_decode(xdr, 20);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
cinfo->atomic = be32_to_cpup(p++);
|
|
p = xdr_decode_hyper(p, &cinfo->before);
|
|
xdr_decode_hyper(p, &cinfo->after);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access)
|
|
{
|
|
__be32 *p;
|
|
uint32_t supp, acc;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_ACCESS);
|
|
if (status)
|
|
return status;
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
supp = be32_to_cpup(p++);
|
|
acc = be32_to_cpup(p);
|
|
*supported = supp;
|
|
*access = acc;
|
|
return 0;
|
|
}
|
|
|
|
static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
|
|
{
|
|
return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
|
|
}
|
|
|
|
static int decode_open_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
|
|
{
|
|
stateid->type = NFS4_OPEN_STATEID_TYPE;
|
|
return decode_stateid(xdr, stateid);
|
|
}
|
|
|
|
static int decode_lock_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
|
|
{
|
|
stateid->type = NFS4_LOCK_STATEID_TYPE;
|
|
return decode_stateid(xdr, stateid);
|
|
}
|
|
|
|
static int decode_delegation_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
|
|
{
|
|
stateid->type = NFS4_DELEGATION_STATEID_TYPE;
|
|
return decode_stateid(xdr, stateid);
|
|
}
|
|
|
|
static int decode_invalid_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
|
|
{
|
|
nfs4_stateid dummy;
|
|
|
|
nfs4_stateid_copy(stateid, &invalid_stateid);
|
|
return decode_stateid(xdr, &dummy);
|
|
}
|
|
|
|
static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_CLOSE);
|
|
if (status != -EIO)
|
|
nfs_increment_open_seqid(status, res->seqid);
|
|
if (!status)
|
|
status = decode_invalid_stateid(xdr, &res->stateid);
|
|
return status;
|
|
}
|
|
|
|
static int decode_verifier(struct xdr_stream *xdr, void *verifier)
|
|
{
|
|
return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE);
|
|
}
|
|
|
|
static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier)
|
|
{
|
|
return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE);
|
|
}
|
|
|
|
static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res)
|
|
{
|
|
struct nfs_writeverf *verf = res->verf;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_COMMIT);
|
|
if (!status)
|
|
status = decode_write_verifier(xdr, &verf->verifier);
|
|
if (!status)
|
|
verf->committed = NFS_FILE_SYNC;
|
|
return status;
|
|
}
|
|
|
|
static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
|
|
{
|
|
__be32 *p;
|
|
uint32_t bmlen;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_CREATE);
|
|
if (status)
|
|
return status;
|
|
if ((status = decode_change_info(xdr, cinfo)))
|
|
return status;
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
bmlen = be32_to_cpup(p);
|
|
p = xdr_inline_decode(xdr, bmlen << 2);
|
|
if (likely(p))
|
|
return 0;
|
|
return -EIO;
|
|
}
|
|
|
|
static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
|
|
{
|
|
unsigned int savep;
|
|
uint32_t attrlen, bitmap[3] = {0};
|
|
int status;
|
|
|
|
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_fh_expire_type(xdr, bitmap,
|
|
&res->fh_expire_type)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_case_insensitive(xdr, bitmap, &res->case_insensitive)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_case_preserving(xdr, bitmap, &res->case_preserving)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_exclcreat_supported(xdr, bitmap,
|
|
res->exclcreat_bitmask)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_open_arguments(xdr, bitmap, &res->open_caps)) != 0)
|
|
goto xdr_error;
|
|
status = verify_attr_len(xdr, savep, attrlen);
|
|
xdr_error:
|
|
dprintk("%s: xdr returned %d!\n", __func__, -status);
|
|
return status;
|
|
}
|
|
|
|
static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
|
|
{
|
|
unsigned int savep;
|
|
uint32_t attrlen, bitmap[3] = {0};
|
|
int status;
|
|
|
|
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
|
|
goto xdr_error;
|
|
|
|
if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
|
|
goto xdr_error;
|
|
|
|
status = -EIO;
|
|
if (unlikely(bitmap[0]))
|
|
goto xdr_error;
|
|
|
|
if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
|
|
goto xdr_error;
|
|
|
|
status = verify_attr_len(xdr, savep, attrlen);
|
|
xdr_error:
|
|
dprintk("%s: xdr returned %d!\n", __func__, -status);
|
|
return status;
|
|
}
|
|
|
|
static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
|
|
{
|
|
unsigned int savep;
|
|
uint32_t attrlen, bitmap[3] = {0};
|
|
int status;
|
|
|
|
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
|
|
goto xdr_error;
|
|
|
|
if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
|
|
goto xdr_error;
|
|
|
|
status = verify_attr_len(xdr, savep, attrlen);
|
|
xdr_error:
|
|
dprintk("%s: xdr returned %d!\n", __func__, -status);
|
|
return status;
|
|
}
|
|
|
|
static int decode_threshold_hint(struct xdr_stream *xdr,
|
|
uint32_t *bitmap,
|
|
uint64_t *res,
|
|
uint32_t hint_bit)
|
|
{
|
|
__be32 *p;
|
|
|
|
*res = 0;
|
|
if (likely(bitmap[0] & hint_bit)) {
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, res);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_first_threshold_item4(struct xdr_stream *xdr,
|
|
struct nfs4_threshold *res)
|
|
{
|
|
__be32 *p;
|
|
unsigned int savep;
|
|
uint32_t bitmap[3] = {0,}, attrlen;
|
|
int status;
|
|
|
|
/* layout type */
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->l_type = be32_to_cpup(p);
|
|
|
|
/* thi_hintset bitmap */
|
|
status = decode_attr_bitmap(xdr, bitmap);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
/* thi_hintlist length */
|
|
status = decode_attr_length(xdr, &attrlen, &savep);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
/* thi_hintlist */
|
|
status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz,
|
|
THRESHOLD_RD_IO);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz,
|
|
THRESHOLD_WR_IO);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
status = verify_attr_len(xdr, savep, attrlen);
|
|
res->bm = bitmap[0];
|
|
|
|
dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
|
|
__func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz,
|
|
res->wr_io_sz);
|
|
xdr_error:
|
|
dprintk("%s ret=%d!\n", __func__, status);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Thresholds on pNFS direct I/O vrs MDS I/O
|
|
*/
|
|
static int decode_attr_mdsthreshold(struct xdr_stream *xdr,
|
|
uint32_t *bitmap,
|
|
struct nfs4_threshold *res)
|
|
{
|
|
__be32 *p;
|
|
int status = 0;
|
|
uint32_t num;
|
|
|
|
if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U)))
|
|
return -EIO;
|
|
if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) {
|
|
/* Did the server return an unrequested attribute? */
|
|
if (unlikely(res == NULL))
|
|
return -EREMOTEIO;
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
num = be32_to_cpup(p);
|
|
if (num == 0)
|
|
return 0;
|
|
if (num > 1)
|
|
printk(KERN_INFO "%s: Warning: Multiple pNFS layout "
|
|
"drivers per filesystem not supported\n",
|
|
__func__);
|
|
|
|
status = decode_first_threshold_item4(xdr, res);
|
|
bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
struct nfs_fattr *fattr, struct nfs_fh *fh,
|
|
struct nfs4_fs_locations *fs_loc, const struct nfs_server *server)
|
|
{
|
|
int status;
|
|
umode_t fmode = 0;
|
|
uint32_t type;
|
|
int32_t err;
|
|
|
|
status = decode_attr_type(xdr, bitmap, &type);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->mode = 0;
|
|
if (status != 0) {
|
|
fattr->mode |= nfs_type2fmt[type];
|
|
fattr->valid |= status;
|
|
}
|
|
|
|
status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_size(xdr, bitmap, &fattr->size);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
err = 0;
|
|
status = decode_attr_error(xdr, bitmap, &err);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_filehandle(xdr, bitmap, fh);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_fs_locations(xdr, bitmap, fs_loc);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = -EIO;
|
|
if (unlikely(bitmap[0]))
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_mode(xdr, bitmap, &fmode);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
if (status != 0) {
|
|
fattr->mode |= fmode;
|
|
fattr->valid |= status;
|
|
}
|
|
|
|
status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
status = -EIO;
|
|
if (unlikely(bitmap[1]))
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_security_label(xdr, bitmap, fattr->label);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
fattr->valid |= status;
|
|
|
|
xdr_error:
|
|
dprintk("%s: xdr returned %d\n", __func__, -status);
|
|
return status;
|
|
}
|
|
|
|
static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
|
|
struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc,
|
|
const struct nfs_server *server)
|
|
{
|
|
unsigned int savep;
|
|
uint32_t attrlen,
|
|
bitmap[3] = {0};
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_GETATTR);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_bitmap(xdr, bitmap);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_length(xdr, &attrlen, &savep);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server);
|
|
if (status < 0)
|
|
goto xdr_error;
|
|
|
|
status = verify_attr_len(xdr, savep, attrlen);
|
|
xdr_error:
|
|
dprintk("%s: xdr returned %d\n", __func__, -status);
|
|
return status;
|
|
}
|
|
|
|
static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
|
|
const struct nfs_server *server)
|
|
{
|
|
return decode_getfattr_generic(xdr, fattr, NULL, NULL, server);
|
|
}
|
|
|
|
/*
|
|
* Decode potentially multiple layout types.
|
|
*/
|
|
static int decode_pnfs_layout_types(struct xdr_stream *xdr,
|
|
struct nfs_fsinfo *fsinfo)
|
|
{
|
|
__be32 *p;
|
|
uint32_t i;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
fsinfo->nlayouttypes = be32_to_cpup(p);
|
|
|
|
/* pNFS is not supported by the underlying file system */
|
|
if (fsinfo->nlayouttypes == 0)
|
|
return 0;
|
|
|
|
/* Decode and set first layout type, move xdr->p past unused types */
|
|
p = xdr_inline_decode(xdr, fsinfo->nlayouttypes * 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
|
|
/* If we get too many, then just cap it at the max */
|
|
if (fsinfo->nlayouttypes > NFS_MAX_LAYOUT_TYPES) {
|
|
printk(KERN_INFO "NFS: %s: Warning: Too many (%u) pNFS layout types\n",
|
|
__func__, fsinfo->nlayouttypes);
|
|
fsinfo->nlayouttypes = NFS_MAX_LAYOUT_TYPES;
|
|
}
|
|
|
|
for(i = 0; i < fsinfo->nlayouttypes; ++i)
|
|
fsinfo->layouttype[i] = be32_to_cpup(p++);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The type of file system exported.
|
|
* Note we must ensure that layouttype is set in any non-error case.
|
|
*/
|
|
static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
struct nfs_fsinfo *fsinfo)
|
|
{
|
|
int status = 0;
|
|
|
|
dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
|
|
if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
|
|
return -EIO;
|
|
if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
|
|
status = decode_pnfs_layout_types(xdr, fsinfo);
|
|
bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* The prefered block size for layout directed io
|
|
*/
|
|
static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
|
|
*res = 0;
|
|
if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The granularity of a CLONE operation.
|
|
*/
|
|
static int decode_attr_clone_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
|
|
uint32_t *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
|
|
*res = 0;
|
|
if (bitmap[2] & FATTR4_WORD2_CLONE_BLKSIZE) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
*res = be32_to_cpup(p);
|
|
bitmap[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_attr_change_attr_type(struct xdr_stream *xdr,
|
|
uint32_t *bitmap,
|
|
enum nfs4_change_attr_type *res)
|
|
{
|
|
u32 tmp = NFS4_CHANGE_TYPE_IS_UNDEFINED;
|
|
|
|
dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
|
|
if (bitmap[2] & FATTR4_WORD2_CHANGE_ATTR_TYPE) {
|
|
if (xdr_stream_decode_u32(xdr, &tmp))
|
|
return -EIO;
|
|
bitmap[2] &= ~FATTR4_WORD2_CHANGE_ATTR_TYPE;
|
|
}
|
|
|
|
switch(tmp) {
|
|
case NFS4_CHANGE_TYPE_IS_MONOTONIC_INCR:
|
|
case NFS4_CHANGE_TYPE_IS_VERSION_COUNTER:
|
|
case NFS4_CHANGE_TYPE_IS_VERSION_COUNTER_NOPNFS:
|
|
case NFS4_CHANGE_TYPE_IS_TIME_METADATA:
|
|
*res = tmp;
|
|
break;
|
|
default:
|
|
*res = NFS4_CHANGE_TYPE_IS_UNDEFINED;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
|
|
{
|
|
unsigned int savep;
|
|
uint32_t attrlen, bitmap[3];
|
|
int status;
|
|
|
|
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
|
|
goto xdr_error;
|
|
|
|
fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
|
|
|
|
if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
|
|
goto xdr_error;
|
|
if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
|
|
goto xdr_error;
|
|
fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
|
|
if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
|
|
goto xdr_error;
|
|
fsinfo->wtpref = fsinfo->wtmax;
|
|
|
|
status = -EIO;
|
|
if (unlikely(bitmap[0]))
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
|
|
if (status != 0)
|
|
goto xdr_error;
|
|
status = decode_attr_pnfstype(xdr, bitmap, fsinfo);
|
|
if (status != 0)
|
|
goto xdr_error;
|
|
|
|
status = -EIO;
|
|
if (unlikely(bitmap[1]))
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
|
|
if (status)
|
|
goto xdr_error;
|
|
status = decode_attr_clone_blksize(xdr, bitmap, &fsinfo->clone_blksize);
|
|
if (status)
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_change_attr_type(xdr, bitmap,
|
|
&fsinfo->change_attr_type);
|
|
if (status)
|
|
goto xdr_error;
|
|
|
|
status = decode_attr_xattrsupport(xdr, bitmap,
|
|
&fsinfo->xattr_support);
|
|
if (status)
|
|
goto xdr_error;
|
|
|
|
status = verify_attr_len(xdr, savep, attrlen);
|
|
xdr_error:
|
|
dprintk("%s: xdr returned %d!\n", __func__, -status);
|
|
return status;
|
|
}
|
|
|
|
static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
|
|
{
|
|
__be32 *p;
|
|
uint32_t len;
|
|
int status;
|
|
|
|
/* Zero handle first to allow comparisons */
|
|
memset(fh, 0, sizeof(*fh));
|
|
|
|
status = decode_op_hdr(xdr, OP_GETFH);
|
|
if (status)
|
|
return status;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
len = be32_to_cpup(p);
|
|
if (len > NFS4_FHSIZE || len == 0) {
|
|
trace_nfs4_xdr_bad_filehandle(xdr, OP_GETFH, NFS4ERR_BADHANDLE);
|
|
return -EREMOTEIO;
|
|
}
|
|
fh->size = len;
|
|
p = xdr_inline_decode(xdr, len);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
memcpy(fh->data, p, len);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_LINK);
|
|
if (status)
|
|
return status;
|
|
return decode_change_info(xdr, cinfo);
|
|
}
|
|
|
|
/*
|
|
* We create the owner, so we know a proper owner.id length is 4.
|
|
*/
|
|
static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
|
|
{
|
|
uint64_t offset, length, clientid;
|
|
__be32 *p;
|
|
uint32_t namelen, type;
|
|
|
|
p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
|
|
p = xdr_decode_hyper(p, &length);
|
|
type = be32_to_cpup(p++); /* 4 byte read */
|
|
if (fl != NULL) { /* manipulate file lock */
|
|
fl->fl_start = (loff_t)offset;
|
|
fl->fl_end = fl->fl_start + (loff_t)length - 1;
|
|
if (length == ~(uint64_t)0)
|
|
fl->fl_end = OFFSET_MAX;
|
|
fl->c.flc_type = F_WRLCK;
|
|
if (type & 1)
|
|
fl->c.flc_type = F_RDLCK;
|
|
fl->c.flc_pid = 0;
|
|
}
|
|
p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
|
|
namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
|
|
p = xdr_inline_decode(xdr, namelen); /* variable size field */
|
|
if (likely(!p))
|
|
return -EIO;
|
|
return -NFS4ERR_DENIED;
|
|
}
|
|
|
|
static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_LOCK);
|
|
if (status == -EIO)
|
|
goto out;
|
|
if (status == 0) {
|
|
status = decode_lock_stateid(xdr, &res->stateid);
|
|
if (unlikely(status))
|
|
goto out;
|
|
} else if (status == -NFS4ERR_DENIED)
|
|
status = decode_lock_denied(xdr, NULL);
|
|
if (res->open_seqid != NULL)
|
|
nfs_increment_open_seqid(status, res->open_seqid);
|
|
nfs_increment_lock_seqid(status, res->lock_seqid);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
|
|
{
|
|
int status;
|
|
status = decode_op_hdr(xdr, OP_LOCKT);
|
|
if (status == -NFS4ERR_DENIED)
|
|
return decode_lock_denied(xdr, res->denied);
|
|
return status;
|
|
}
|
|
|
|
static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_LOCKU);
|
|
if (status != -EIO)
|
|
nfs_increment_lock_seqid(status, res->seqid);
|
|
if (status == 0)
|
|
status = decode_lock_stateid(xdr, &res->stateid);
|
|
return status;
|
|
}
|
|
|
|
static int decode_release_lockowner(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
|
|
}
|
|
|
|
static int decode_lookup(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_LOOKUP);
|
|
}
|
|
|
|
static int decode_lookupp(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_LOOKUPP);
|
|
}
|
|
|
|
/* This is too sick! */
|
|
static int decode_space_limit(struct xdr_stream *xdr,
|
|
unsigned long *pagemod_limit)
|
|
{
|
|
__be32 *p;
|
|
uint32_t limit_type, nblocks, blocksize;
|
|
u64 maxsize = 0;
|
|
|
|
p = xdr_inline_decode(xdr, 12);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
limit_type = be32_to_cpup(p++);
|
|
switch (limit_type) {
|
|
case NFS4_LIMIT_SIZE:
|
|
xdr_decode_hyper(p, &maxsize);
|
|
break;
|
|
case NFS4_LIMIT_BLOCKS:
|
|
nblocks = be32_to_cpup(p++);
|
|
blocksize = be32_to_cpup(p);
|
|
maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
|
|
}
|
|
maxsize >>= PAGE_SHIFT;
|
|
*pagemod_limit = min_t(u64, maxsize, ULONG_MAX);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_rw_delegation(struct xdr_stream *xdr,
|
|
struct nfs4_open_delegation *res)
|
|
{
|
|
__be32 *p;
|
|
int status;
|
|
|
|
status = decode_delegation_stateid(xdr, &res->stateid);
|
|
if (unlikely(status))
|
|
return status;
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->do_recall = be32_to_cpup(p);
|
|
|
|
switch (res->open_delegation_type) {
|
|
case NFS4_OPEN_DELEGATE_READ:
|
|
case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG:
|
|
res->type = FMODE_READ;
|
|
break;
|
|
case NFS4_OPEN_DELEGATE_WRITE:
|
|
case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG:
|
|
res->type = FMODE_WRITE|FMODE_READ;
|
|
if (decode_space_limit(xdr, &res->pagemod_limit) < 0)
|
|
return -EIO;
|
|
}
|
|
return decode_ace(xdr, NULL);
|
|
}
|
|
|
|
static int decode_no_delegation(struct xdr_stream *xdr,
|
|
struct nfs4_open_delegation *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->why_no_delegation = be32_to_cpup(p);
|
|
switch (res->why_no_delegation) {
|
|
case WND4_CONTENTION:
|
|
case WND4_RESOURCE:
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->will_notify = be32_to_cpup(p);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_delegation(struct xdr_stream *xdr,
|
|
struct nfs4_open_delegation *res)
|
|
{
|
|
__be32 *p;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->open_delegation_type = be32_to_cpup(p);
|
|
switch (res->open_delegation_type) {
|
|
case NFS4_OPEN_DELEGATE_NONE:
|
|
return 0;
|
|
case NFS4_OPEN_DELEGATE_READ:
|
|
case NFS4_OPEN_DELEGATE_WRITE:
|
|
case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG:
|
|
case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG:
|
|
return decode_rw_delegation(xdr, res);
|
|
case NFS4_OPEN_DELEGATE_NONE_EXT:
|
|
return decode_no_delegation(xdr, res);
|
|
}
|
|
return -EIO;
|
|
}
|
|
|
|
static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
|
|
{
|
|
__be32 *p;
|
|
uint32_t savewords, bmlen, i;
|
|
int status;
|
|
|
|
if (!__decode_op_hdr(xdr, OP_OPEN, &status))
|
|
return status;
|
|
nfs_increment_open_seqid(status, res->seqid);
|
|
if (status)
|
|
return status;
|
|
status = decode_open_stateid(xdr, &res->stateid);
|
|
if (unlikely(status))
|
|
return status;
|
|
|
|
decode_change_info(xdr, &res->cinfo);
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->rflags = be32_to_cpup(p++);
|
|
bmlen = be32_to_cpup(p);
|
|
if (bmlen > 10)
|
|
goto xdr_error;
|
|
|
|
p = xdr_inline_decode(xdr, bmlen << 2);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
|
|
for (i = 0; i < savewords; ++i)
|
|
res->attrset[i] = be32_to_cpup(p++);
|
|
for (; i < NFS4_BITMAP_SIZE; i++)
|
|
res->attrset[i] = 0;
|
|
|
|
return decode_delegation(xdr, &res->delegation);
|
|
xdr_error:
|
|
dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
|
|
return -EIO;
|
|
}
|
|
|
|
static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
|
|
if (status != -EIO)
|
|
nfs_increment_open_seqid(status, res->seqid);
|
|
if (!status)
|
|
status = decode_open_stateid(xdr, &res->stateid);
|
|
return status;
|
|
}
|
|
|
|
static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
|
|
if (status != -EIO)
|
|
nfs_increment_open_seqid(status, res->seqid);
|
|
if (!status)
|
|
status = decode_open_stateid(xdr, &res->stateid);
|
|
return status;
|
|
}
|
|
|
|
static int decode_putfh(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_PUTFH);
|
|
}
|
|
|
|
static int decode_putrootfh(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_PUTROOTFH);
|
|
}
|
|
|
|
static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req,
|
|
struct nfs_pgio_res *res)
|
|
{
|
|
__be32 *p;
|
|
uint32_t count, eof, recvd;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_READ);
|
|
if (status)
|
|
return status;
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
eof = be32_to_cpup(p++);
|
|
count = be32_to_cpup(p);
|
|
recvd = xdr_read_pages(xdr, count);
|
|
if (count > recvd) {
|
|
dprintk("NFS: server cheating in read reply: "
|
|
"count %u > recvd %u\n", count, recvd);
|
|
count = recvd;
|
|
eof = 0;
|
|
}
|
|
res->eof = eof;
|
|
res->count = count;
|
|
return 0;
|
|
}
|
|
|
|
static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
|
|
{
|
|
int status;
|
|
__be32 verf[2];
|
|
|
|
status = decode_op_hdr(xdr, OP_READDIR);
|
|
if (!status)
|
|
status = decode_verifier(xdr, readdir->verifier.data);
|
|
if (unlikely(status))
|
|
return status;
|
|
memcpy(verf, readdir->verifier.data, sizeof(verf));
|
|
dprintk("%s: verifier = %08x:%08x\n",
|
|
__func__, verf[0], verf[1]);
|
|
return xdr_read_pages(xdr, xdr->buf->page_len);
|
|
}
|
|
|
|
static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
|
|
{
|
|
struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
|
|
u32 len, recvd;
|
|
__be32 *p;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_READLINK);
|
|
if (status)
|
|
return status;
|
|
|
|
/* Convert length of symlink */
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
len = be32_to_cpup(p);
|
|
if (len >= rcvbuf->page_len || len <= 0) {
|
|
dprintk("nfs: server returned giant symlink!\n");
|
|
return -ENAMETOOLONG;
|
|
}
|
|
recvd = xdr_read_pages(xdr, len);
|
|
if (recvd < len) {
|
|
dprintk("NFS: server cheating in readlink reply: "
|
|
"count %u > recvd %u\n", len, recvd);
|
|
return -EIO;
|
|
}
|
|
/*
|
|
* The XDR encode routine has set things up so that
|
|
* the link text will be copied directly into the
|
|
* buffer. We just have to do overflow-checking,
|
|
* and null-terminate the text (the VFS expects
|
|
* null-termination).
|
|
*/
|
|
xdr_terminate_string(rcvbuf, len);
|
|
return 0;
|
|
}
|
|
|
|
static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_REMOVE);
|
|
if (status)
|
|
goto out;
|
|
status = decode_change_info(xdr, cinfo);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
|
|
struct nfs4_change_info *new_cinfo)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_RENAME);
|
|
if (status)
|
|
goto out;
|
|
if ((status = decode_change_info(xdr, old_cinfo)))
|
|
goto out;
|
|
status = decode_change_info(xdr, new_cinfo);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
static int decode_renew(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_RENEW);
|
|
}
|
|
|
|
static int
|
|
decode_restorefh(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_RESTOREFH);
|
|
}
|
|
|
|
static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
|
|
struct nfs_getaclres *res, enum nfs4_acl_type type)
|
|
{
|
|
unsigned int savep;
|
|
uint32_t attrlen,
|
|
bitmap[3] = {0};
|
|
int status;
|
|
|
|
res->acl_len = 0;
|
|
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
|
|
goto out;
|
|
|
|
xdr_enter_page(xdr, xdr->buf->page_len);
|
|
|
|
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
|
|
goto out;
|
|
if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
|
|
goto out;
|
|
|
|
switch (type) {
|
|
default:
|
|
if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
|
|
return -EIO;
|
|
if (!(bitmap[0] & FATTR4_WORD0_ACL))
|
|
return -EOPNOTSUPP;
|
|
break;
|
|
case NFS4ACL_DACL:
|
|
if (unlikely(bitmap[0] || bitmap[1] & (FATTR4_WORD1_DACL - 1U)))
|
|
return -EIO;
|
|
if (!(bitmap[1] & FATTR4_WORD1_DACL))
|
|
return -EOPNOTSUPP;
|
|
break;
|
|
case NFS4ACL_SACL:
|
|
if (unlikely(bitmap[0] || bitmap[1] & (FATTR4_WORD1_SACL - 1U)))
|
|
return -EIO;
|
|
if (!(bitmap[1] & FATTR4_WORD1_SACL))
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/* The bitmap (xdr len + bitmaps) and the attr xdr len words
|
|
* are stored with the acl data to handle the problem of
|
|
* variable length bitmaps.*/
|
|
res->acl_data_offset = xdr_page_pos(xdr);
|
|
res->acl_len = attrlen;
|
|
|
|
/* Check for receive buffer overflow */
|
|
if (res->acl_len > xdr_stream_remaining(xdr) ||
|
|
res->acl_len + res->acl_data_offset > xdr->buf->page_len) {
|
|
res->acl_flags |= NFS4_ACL_TRUNC;
|
|
dprintk("NFS: acl reply: attrlen %u > page_len %zu\n",
|
|
attrlen, xdr_stream_remaining(xdr));
|
|
}
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
static int
|
|
decode_savefh(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_SAVEFH);
|
|
}
|
|
|
|
static int decode_setattr(struct xdr_stream *xdr)
|
|
{
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_SETATTR);
|
|
if (status)
|
|
return status;
|
|
if (decode_bitmap4(xdr, NULL, 0) >= 0)
|
|
return 0;
|
|
return -EIO;
|
|
}
|
|
|
|
static int decode_delegattr(struct xdr_stream *xdr)
|
|
{
|
|
return decode_setattr(xdr);
|
|
}
|
|
|
|
static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
|
|
{
|
|
__be32 *p;
|
|
uint32_t opnum;
|
|
int32_t nfserr;
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
opnum = be32_to_cpup(p++);
|
|
if (opnum != OP_SETCLIENTID) {
|
|
dprintk("nfs: decode_setclientid: Server returned operation"
|
|
" %d\n", opnum);
|
|
return -EIO;
|
|
}
|
|
nfserr = be32_to_cpup(p);
|
|
if (nfserr == NFS_OK) {
|
|
p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
p = xdr_decode_hyper(p, &res->clientid);
|
|
memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
|
|
} else if (nfserr == NFSERR_CLID_INUSE) {
|
|
uint32_t len;
|
|
|
|
/* skip netid string */
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
len = be32_to_cpup(p);
|
|
p = xdr_inline_decode(xdr, len);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
|
|
/* skip uaddr string */
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
len = be32_to_cpup(p);
|
|
p = xdr_inline_decode(xdr, len);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
return -NFSERR_CLID_INUSE;
|
|
} else
|
|
return nfs4_stat_to_errno(nfserr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decode_setclientid_confirm(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
|
|
}
|
|
|
|
static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res)
|
|
{
|
|
__be32 *p;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_WRITE);
|
|
if (status)
|
|
return status;
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->count = be32_to_cpup(p++);
|
|
res->verf->committed = be32_to_cpup(p++);
|
|
return decode_write_verifier(xdr, &res->verf->verifier);
|
|
}
|
|
|
|
static int decode_delegreturn(struct xdr_stream *xdr)
|
|
{
|
|
return decode_op_hdr(xdr, OP_DELEGRETURN);
|
|
}
|
|
|
|
static int decode_secinfo_gss(struct xdr_stream *xdr,
|
|
struct nfs4_secinfo4 *flavor)
|
|
{
|
|
u32 oid_len;
|
|
__be32 *p;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
oid_len = be32_to_cpup(p);
|
|
if (oid_len > GSS_OID_MAX_LEN)
|
|
return -EINVAL;
|
|
|
|
p = xdr_inline_decode(xdr, oid_len);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
memcpy(flavor->flavor_info.oid.data, p, oid_len);
|
|
flavor->flavor_info.oid.len = oid_len;
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
flavor->flavor_info.qop = be32_to_cpup(p++);
|
|
flavor->flavor_info.service = be32_to_cpup(p);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
|
|
{
|
|
struct nfs4_secinfo4 *sec_flavor;
|
|
unsigned int i, num_flavors;
|
|
int status;
|
|
__be32 *p;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
|
|
res->flavors->num_flavors = 0;
|
|
num_flavors = be32_to_cpup(p);
|
|
|
|
for (i = 0; i < num_flavors; i++) {
|
|
sec_flavor = &res->flavors->flavors[i];
|
|
if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
|
|
break;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
sec_flavor->flavor = be32_to_cpup(p);
|
|
|
|
if (sec_flavor->flavor == RPC_AUTH_GSS) {
|
|
status = decode_secinfo_gss(xdr, sec_flavor);
|
|
if (status)
|
|
goto out;
|
|
}
|
|
res->flavors->num_flavors++;
|
|
}
|
|
|
|
status = 0;
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
|
|
{
|
|
int status = decode_op_hdr(xdr, OP_SECINFO);
|
|
if (status)
|
|
return status;
|
|
return decode_secinfo_common(xdr, res);
|
|
}
|
|
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
|
|
{
|
|
int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME);
|
|
if (status)
|
|
return status;
|
|
return decode_secinfo_common(xdr, res);
|
|
}
|
|
|
|
static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
|
|
{
|
|
if (xdr_stream_decode_uint32_array(xdr, op_map->u.words,
|
|
ARRAY_SIZE(op_map->u.words)) < 0)
|
|
return -EIO;
|
|
return 0;
|
|
}
|
|
|
|
static int decode_exchange_id(struct xdr_stream *xdr,
|
|
struct nfs41_exchange_id_res *res)
|
|
{
|
|
__be32 *p;
|
|
uint32_t dummy;
|
|
char *dummy_str;
|
|
int status;
|
|
uint32_t impl_id_count;
|
|
|
|
status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
|
|
if (status)
|
|
return status;
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
xdr_decode_hyper(p, &res->clientid);
|
|
p = xdr_inline_decode(xdr, 12);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->seqid = be32_to_cpup(p++);
|
|
res->flags = be32_to_cpup(p++);
|
|
|
|
res->state_protect.how = be32_to_cpup(p);
|
|
switch (res->state_protect.how) {
|
|
case SP4_NONE:
|
|
break;
|
|
case SP4_MACH_CRED:
|
|
status = decode_op_map(xdr, &res->state_protect.enforce);
|
|
if (status)
|
|
return status;
|
|
status = decode_op_map(xdr, &res->state_protect.allow);
|
|
if (status)
|
|
return status;
|
|
break;
|
|
default:
|
|
WARN_ON_ONCE(1);
|
|
return -EIO;
|
|
}
|
|
|
|
/* server_owner4.so_minor_id */
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
p = xdr_decode_hyper(p, &res->server_owner->minor_id);
|
|
|
|
/* server_owner4.so_major_id */
|
|
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
|
|
if (unlikely(status))
|
|
return status;
|
|
memcpy(res->server_owner->major_id, dummy_str, dummy);
|
|
res->server_owner->major_id_sz = dummy;
|
|
|
|
/* server_scope4 */
|
|
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
|
|
if (unlikely(status))
|
|
return status;
|
|
memcpy(res->server_scope->server_scope, dummy_str, dummy);
|
|
res->server_scope->server_scope_sz = dummy;
|
|
|
|
/* Implementation Id */
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
impl_id_count = be32_to_cpup(p++);
|
|
|
|
if (impl_id_count) {
|
|
/* nii_domain */
|
|
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
|
|
if (unlikely(status))
|
|
return status;
|
|
memcpy(res->impl_id->domain, dummy_str, dummy);
|
|
|
|
/* nii_name */
|
|
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
|
|
if (unlikely(status))
|
|
return status;
|
|
memcpy(res->impl_id->name, dummy_str, dummy);
|
|
|
|
/* nii_date */
|
|
p = xdr_inline_decode(xdr, 12);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
p = xdr_decode_hyper(p, &res->impl_id->date.seconds);
|
|
res->impl_id->date.nseconds = be32_to_cpup(p);
|
|
|
|
/* if there's more than one entry, ignore the rest */
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_chan_attrs(struct xdr_stream *xdr,
|
|
struct nfs4_channel_attrs *attrs)
|
|
{
|
|
__be32 *p;
|
|
u32 nr_attrs, val;
|
|
|
|
p = xdr_inline_decode(xdr, 28);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
val = be32_to_cpup(p++); /* headerpadsz */
|
|
if (val)
|
|
return -EINVAL; /* no support for header padding yet */
|
|
attrs->max_rqst_sz = be32_to_cpup(p++);
|
|
attrs->max_resp_sz = be32_to_cpup(p++);
|
|
attrs->max_resp_sz_cached = be32_to_cpup(p++);
|
|
attrs->max_ops = be32_to_cpup(p++);
|
|
attrs->max_reqs = be32_to_cpup(p++);
|
|
nr_attrs = be32_to_cpup(p);
|
|
if (unlikely(nr_attrs > 1)) {
|
|
printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs "
|
|
"count %u\n", __func__, nr_attrs);
|
|
return -EINVAL;
|
|
}
|
|
if (nr_attrs == 1) {
|
|
p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
|
|
{
|
|
return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
|
|
}
|
|
|
|
static int decode_bind_conn_to_session(struct xdr_stream *xdr,
|
|
struct nfs41_bind_conn_to_session_res *res)
|
|
{
|
|
__be32 *p;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION);
|
|
if (!status)
|
|
status = decode_sessionid(xdr, &res->sessionid);
|
|
if (unlikely(status))
|
|
return status;
|
|
|
|
/* dir flags, rdma mode bool */
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
|
|
res->dir = be32_to_cpup(p++);
|
|
if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH)
|
|
return -EIO;
|
|
if (be32_to_cpup(p) == 0)
|
|
res->use_conn_in_rdma_mode = false;
|
|
else
|
|
res->use_conn_in_rdma_mode = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decode_create_session(struct xdr_stream *xdr,
|
|
struct nfs41_create_session_res *res)
|
|
{
|
|
__be32 *p;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_CREATE_SESSION);
|
|
if (!status)
|
|
status = decode_sessionid(xdr, &res->sessionid);
|
|
if (unlikely(status))
|
|
return status;
|
|
|
|
/* seqid, flags */
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->seqid = be32_to_cpup(p++);
|
|
res->flags = be32_to_cpup(p);
|
|
|
|
/* Channel attributes */
|
|
status = decode_chan_attrs(xdr, &res->fc_attrs);
|
|
if (!status)
|
|
status = decode_chan_attrs(xdr, &res->bc_attrs);
|
|
return status;
|
|
}
|
|
|
|
static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
|
|
{
|
|
return decode_op_hdr(xdr, OP_DESTROY_SESSION);
|
|
}
|
|
|
|
static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy)
|
|
{
|
|
return decode_op_hdr(xdr, OP_DESTROY_CLIENTID);
|
|
}
|
|
|
|
static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
|
|
{
|
|
return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
|
|
}
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
|
|
static int decode_sequence(struct xdr_stream *xdr,
|
|
struct nfs4_sequence_res *res,
|
|
struct rpc_rqst *rqstp)
|
|
{
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
struct nfs4_session *session;
|
|
struct nfs4_sessionid id;
|
|
u32 dummy;
|
|
int status;
|
|
__be32 *p;
|
|
|
|
if (res->sr_slot == NULL)
|
|
return 0;
|
|
if (!res->sr_slot->table->session)
|
|
return 0;
|
|
|
|
status = decode_op_hdr(xdr, OP_SEQUENCE);
|
|
if (!status)
|
|
status = decode_sessionid(xdr, &id);
|
|
if (unlikely(status))
|
|
goto out_err;
|
|
|
|
/*
|
|
* If the server returns different values for sessionID, slotID or
|
|
* sequence number, the server is looney tunes.
|
|
*/
|
|
status = -EREMOTEIO;
|
|
session = res->sr_slot->table->session;
|
|
|
|
if (memcmp(id.data, session->sess_id.data,
|
|
NFS4_MAX_SESSIONID_LEN)) {
|
|
dprintk("%s Invalid session id\n", __func__);
|
|
goto out_err;
|
|
}
|
|
|
|
p = xdr_inline_decode(xdr, 20);
|
|
if (unlikely(!p))
|
|
goto out_overflow;
|
|
|
|
/* seqid */
|
|
dummy = be32_to_cpup(p++);
|
|
if (dummy != res->sr_slot->seq_nr) {
|
|
dprintk("%s Invalid sequence number\n", __func__);
|
|
goto out_err;
|
|
}
|
|
/* slot id */
|
|
dummy = be32_to_cpup(p++);
|
|
if (dummy != res->sr_slot->slot_nr) {
|
|
dprintk("%s Invalid slot id\n", __func__);
|
|
goto out_err;
|
|
}
|
|
/* highest slot id */
|
|
res->sr_highest_slotid = be32_to_cpup(p++);
|
|
/* target highest slot id */
|
|
res->sr_target_highest_slotid = be32_to_cpup(p++);
|
|
/* result flags */
|
|
res->sr_status_flags = be32_to_cpup(p);
|
|
status = 0;
|
|
out_err:
|
|
res->sr_status = status;
|
|
return status;
|
|
out_overflow:
|
|
status = -EIO;
|
|
goto out_err;
|
|
#else /* CONFIG_NFS_V4_1 */
|
|
return 0;
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
}
|
|
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
static int decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
|
|
{
|
|
stateid->type = NFS4_LAYOUT_STATEID_TYPE;
|
|
return decode_stateid(xdr, stateid);
|
|
}
|
|
|
|
static int decode_getdeviceinfo(struct xdr_stream *xdr,
|
|
struct nfs4_getdeviceinfo_res *res)
|
|
{
|
|
struct pnfs_device *pdev = res->pdev;
|
|
__be32 *p;
|
|
uint32_t len, type;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
|
|
if (status) {
|
|
if (status == -ETOOSMALL) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
pdev->mincount = be32_to_cpup(p);
|
|
dprintk("%s: Min count too small. mincnt = %u\n",
|
|
__func__, pdev->mincount);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
type = be32_to_cpup(p++);
|
|
if (type != pdev->layout_type) {
|
|
dprintk("%s: layout mismatch req: %u pdev: %u\n",
|
|
__func__, pdev->layout_type, type);
|
|
return -EINVAL;
|
|
}
|
|
/*
|
|
* Get the length of the opaque device_addr4. xdr_read_pages places
|
|
* the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
|
|
* and places the remaining xdr data in xdr_buf->tail
|
|
*/
|
|
pdev->mincount = be32_to_cpup(p);
|
|
if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount)
|
|
return -EIO;
|
|
|
|
/* Parse notification bitmap, verifying that it is zero. */
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
len = be32_to_cpup(p);
|
|
if (len) {
|
|
uint32_t i;
|
|
|
|
p = xdr_inline_decode(xdr, 4 * len);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
|
|
res->notification = be32_to_cpup(p++);
|
|
for (i = 1; i < len; i++) {
|
|
if (be32_to_cpup(p++)) {
|
|
dprintk("%s: unsupported notification\n",
|
|
__func__);
|
|
return -EIO;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
|
|
struct nfs4_layoutget_res *res)
|
|
{
|
|
__be32 *p;
|
|
int status;
|
|
u32 layout_count;
|
|
u32 recvd;
|
|
|
|
status = decode_op_hdr(xdr, OP_LAYOUTGET);
|
|
if (status)
|
|
goto out;
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
goto out_overflow;
|
|
res->return_on_close = be32_to_cpup(p);
|
|
decode_layout_stateid(xdr, &res->stateid);
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
goto out_overflow;
|
|
layout_count = be32_to_cpup(p);
|
|
if (!layout_count) {
|
|
dprintk("%s: server responded with empty layout array\n",
|
|
__func__);
|
|
status = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
p = xdr_inline_decode(xdr, 28);
|
|
if (unlikely(!p))
|
|
goto out_overflow;
|
|
p = xdr_decode_hyper(p, &res->range.offset);
|
|
p = xdr_decode_hyper(p, &res->range.length);
|
|
res->range.iomode = be32_to_cpup(p++);
|
|
res->type = be32_to_cpup(p++);
|
|
res->layoutp->len = be32_to_cpup(p);
|
|
|
|
dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
|
|
__func__,
|
|
(unsigned long)res->range.offset,
|
|
(unsigned long)res->range.length,
|
|
res->range.iomode,
|
|
res->type,
|
|
res->layoutp->len);
|
|
|
|
recvd = xdr_read_pages(xdr, res->layoutp->len);
|
|
if (res->layoutp->len > recvd) {
|
|
dprintk("NFS: server cheating in layoutget reply: "
|
|
"layout len %u > recvd %u\n",
|
|
res->layoutp->len, recvd);
|
|
status = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (layout_count > 1) {
|
|
/* We only handle a length one array at the moment. Any
|
|
* further entries are just ignored. Note that this means
|
|
* the client may see a response that is less than the
|
|
* minimum it requested.
|
|
*/
|
|
dprintk("%s: server responded with %d layouts, dropping tail\n",
|
|
__func__, layout_count);
|
|
}
|
|
|
|
out:
|
|
res->status = status;
|
|
return status;
|
|
out_overflow:
|
|
status = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
static int decode_layoutreturn(struct xdr_stream *xdr,
|
|
struct nfs4_layoutreturn_res *res)
|
|
{
|
|
__be32 *p;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
|
|
if (status)
|
|
return status;
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->lrs_present = be32_to_cpup(p);
|
|
if (res->lrs_present)
|
|
status = decode_layout_stateid(xdr, &res->stateid);
|
|
else
|
|
nfs4_stateid_copy(&res->stateid, &invalid_stateid);
|
|
return status;
|
|
}
|
|
|
|
static int decode_layoutcommit(struct xdr_stream *xdr,
|
|
struct rpc_rqst *req,
|
|
struct nfs4_layoutcommit_res *res)
|
|
{
|
|
__be32 *p;
|
|
__u32 sizechanged;
|
|
int status;
|
|
|
|
status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
|
|
res->status = status;
|
|
if (status)
|
|
return status;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
sizechanged = be32_to_cpup(p);
|
|
|
|
if (sizechanged) {
|
|
/* throw away new size */
|
|
p = xdr_inline_decode(xdr, 8);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_test_stateid(struct xdr_stream *xdr,
|
|
struct nfs41_test_stateid_res *res)
|
|
{
|
|
__be32 *p;
|
|
int status;
|
|
int num_res;
|
|
|
|
status = decode_op_hdr(xdr, OP_TEST_STATEID);
|
|
if (status)
|
|
return status;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
num_res = be32_to_cpup(p++);
|
|
if (num_res != 1)
|
|
return -EIO;
|
|
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EIO;
|
|
res->status = be32_to_cpup(p++);
|
|
|
|
return status;
|
|
}
|
|
|
|
static int decode_free_stateid(struct xdr_stream *xdr,
|
|
struct nfs41_free_stateid_res *res)
|
|
{
|
|
res->status = decode_op_hdr(xdr, OP_FREE_STATEID);
|
|
return res->status;
|
|
}
|
|
#else
|
|
static inline
|
|
int decode_layoutreturn(struct xdr_stream *xdr,
|
|
struct nfs4_layoutreturn_res *res)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
|
|
struct nfs4_layoutget_res *res)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
|
|
/*
|
|
* END OF "GENERIC" DECODE ROUTINES.
|
|
*/
|
|
|
|
/*
|
|
* Decode OPEN_DOWNGRADE response
|
|
*/
|
|
static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_closeres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
if (res->lr_res) {
|
|
status = decode_layoutreturn(xdr, res->lr_res);
|
|
res->lr_ret = status;
|
|
if (status)
|
|
goto out;
|
|
}
|
|
status = decode_open_downgrade(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode ACCESS response
|
|
*/
|
|
static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_accessres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status != 0)
|
|
goto out;
|
|
status = decode_access(xdr, &res->supported, &res->access);
|
|
if (status != 0)
|
|
goto out;
|
|
if (res->fattr)
|
|
decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LOOKUP response
|
|
*/
|
|
static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_lookup_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_lookup(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfh(xdr, res->fh);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LOOKUPP response
|
|
*/
|
|
static int nfs4_xdr_dec_lookupp(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_lookupp_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_lookupp(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfh(xdr, res->fh);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LOOKUP_ROOT response
|
|
*/
|
|
static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_lookup_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putrootfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfh(xdr, res->fh);
|
|
if (status == 0)
|
|
status = decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode REMOVE response
|
|
*/
|
|
static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_removeres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_remove(xdr, &res->cinfo);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode RENAME response
|
|
*/
|
|
static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_renameres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_savefh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LINK response
|
|
*/
|
|
static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_link_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_savefh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_link(xdr, &res->cinfo);
|
|
if (status)
|
|
goto out;
|
|
/*
|
|
* Note order: OP_LINK leaves the directory as the current
|
|
* filehandle.
|
|
*/
|
|
status = decode_restorefh(xdr);
|
|
if (status)
|
|
goto out;
|
|
decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode CREATE response
|
|
*/
|
|
static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_create_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_create(xdr, &res->dir_cinfo);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfh(xdr, res->fh);
|
|
if (status)
|
|
goto out;
|
|
decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode SYMLINK response
|
|
*/
|
|
static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *res)
|
|
{
|
|
return nfs4_xdr_dec_create(rqstp, xdr, res);
|
|
}
|
|
|
|
/*
|
|
* Decode GETATTR response
|
|
*/
|
|
static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_getattr_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Encode an SETACL request
|
|
*/
|
|
static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
const void *data)
|
|
{
|
|
const struct nfs_setaclargs *args = data;
|
|
struct compound_hdr hdr = {
|
|
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
|
};
|
|
|
|
encode_compound_hdr(xdr, req, &hdr);
|
|
encode_sequence(xdr, &args->seq_args, &hdr);
|
|
encode_putfh(xdr, args->fh, &hdr);
|
|
encode_setacl(xdr, args, &hdr);
|
|
encode_nops(&hdr);
|
|
}
|
|
|
|
/*
|
|
* Decode SETACL response
|
|
*/
|
|
static int
|
|
nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_setaclres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_setattr(xdr);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode GETACL response
|
|
*/
|
|
static int
|
|
nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_getaclres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
if (res->acl_scratch != NULL)
|
|
xdr_set_scratch_page(xdr, res->acl_scratch);
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getacl(xdr, rqstp, res, res->acl_type);
|
|
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode CLOSE response
|
|
*/
|
|
static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_closeres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
if (res->lr_res) {
|
|
status = decode_layoutreturn(xdr, res->lr_res);
|
|
res->lr_ret = status;
|
|
if (status)
|
|
goto out;
|
|
}
|
|
if (res->fattr != NULL) {
|
|
status = decode_getfattr(xdr, res->fattr, res->server);
|
|
if (status != 0)
|
|
goto out;
|
|
}
|
|
status = decode_close(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode OPEN response
|
|
*/
|
|
static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_openres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_open(xdr, res);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfh(xdr, &res->fh);
|
|
if (status)
|
|
goto out;
|
|
if (res->access_request)
|
|
decode_access(xdr, &res->access_supported, &res->access_result);
|
|
decode_getfattr(xdr, res->f_attr, res->server);
|
|
if (res->lg_res)
|
|
decode_layoutget(xdr, rqstp, res->lg_res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode OPEN_CONFIRM response
|
|
*/
|
|
static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_open_confirmres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_open_confirm(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode OPEN response
|
|
*/
|
|
static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_openres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_open(xdr, res);
|
|
if (status)
|
|
goto out;
|
|
if (res->access_request)
|
|
decode_access(xdr, &res->access_supported, &res->access_result);
|
|
decode_getfattr(xdr, res->f_attr, res->server);
|
|
if (res->lg_res)
|
|
decode_layoutget(xdr, rqstp, res->lg_res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode SETATTR response
|
|
*/
|
|
static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_setattrres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_setattr(xdr);
|
|
if (status)
|
|
goto out;
|
|
decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LOCK response
|
|
*/
|
|
static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_lock_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_lock(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LOCKT response
|
|
*/
|
|
static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_lockt_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_lockt(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LOCKU response
|
|
*/
|
|
static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_locku_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_locku(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr, void *dummy)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_release_lockowner(xdr);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode READLINK response
|
|
*/
|
|
static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_readlink_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_readlink(xdr, rqstp);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode READDIR response
|
|
*/
|
|
static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_readdir_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_readdir(xdr, rqstp, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode Read response
|
|
*/
|
|
static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_pgio_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
res->op_status = hdr.status;
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_read(xdr, rqstp, res);
|
|
if (!status)
|
|
status = res->count;
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode WRITE response
|
|
*/
|
|
static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_pgio_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
res->op_status = hdr.status;
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_write(xdr, res);
|
|
if (status)
|
|
goto out;
|
|
if (res->fattr)
|
|
decode_getfattr(xdr, res->fattr, res->server);
|
|
if (!status)
|
|
status = res->count;
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode COMMIT response
|
|
*/
|
|
static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs_commitres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
res->op_status = hdr.status;
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_commit(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode FSINFO response
|
|
*/
|
|
static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_fsinfo_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_sequence(xdr, &res->seq_res, req);
|
|
if (!status)
|
|
status = decode_putfh(xdr);
|
|
if (!status)
|
|
status = decode_fsinfo(xdr, res->fsinfo);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode PATHCONF response
|
|
*/
|
|
static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_pathconf_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_sequence(xdr, &res->seq_res, req);
|
|
if (!status)
|
|
status = decode_putfh(xdr);
|
|
if (!status)
|
|
status = decode_pathconf(xdr, res->pathconf);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode STATFS response
|
|
*/
|
|
static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_statfs_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_sequence(xdr, &res->seq_res, req);
|
|
if (!status)
|
|
status = decode_putfh(xdr);
|
|
if (!status)
|
|
status = decode_statfs(xdr, res->fsstat);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode GETATTR_BITMAP response
|
|
*/
|
|
static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_server_caps_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, req);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_server_caps(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode RENEW response
|
|
*/
|
|
static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
|
|
void *__unused)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_renew(xdr);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode SETCLIENTID response
|
|
*/
|
|
static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_setclientid_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_setclientid(xdr, res);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode SETCLIENTID_CONFIRM response
|
|
*/
|
|
static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_setclientid_confirm(xdr);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode DELEGRETURN response
|
|
*/
|
|
static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_delegreturnres *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status != 0)
|
|
goto out;
|
|
if (res->lr_res) {
|
|
status = decode_layoutreturn(xdr, res->lr_res);
|
|
res->lr_ret = status;
|
|
if (status)
|
|
goto out;
|
|
}
|
|
if (res->sattr_res) {
|
|
status = decode_delegattr(xdr);
|
|
res->sattr_ret = status;
|
|
if (status)
|
|
goto out;
|
|
}
|
|
if (res->fattr) {
|
|
status = decode_getfattr(xdr, res->fattr, res->server);
|
|
if (status != 0)
|
|
goto out;
|
|
}
|
|
status = decode_delegreturn(xdr);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode FS_LOCATIONS response
|
|
*/
|
|
static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_fs_locations_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, req);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
if (res->migration) {
|
|
xdr_enter_page(xdr, PAGE_SIZE);
|
|
status = decode_getfattr_generic(xdr,
|
|
res->fs_locations->fattr,
|
|
NULL, res->fs_locations,
|
|
res->fs_locations->server);
|
|
if (status)
|
|
goto out;
|
|
if (res->renew)
|
|
status = decode_renew(xdr);
|
|
} else {
|
|
status = decode_lookup(xdr);
|
|
if (status)
|
|
goto out;
|
|
xdr_enter_page(xdr, PAGE_SIZE);
|
|
status = decode_getfattr_generic(xdr,
|
|
res->fs_locations->fattr,
|
|
NULL, res->fs_locations,
|
|
res->fs_locations->server);
|
|
}
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode SECINFO response
|
|
*/
|
|
static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_secinfo_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_secinfo(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode FSID_PRESENT response
|
|
*/
|
|
static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_fsid_present_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_getfh(xdr, res->fh);
|
|
if (status)
|
|
goto out;
|
|
if (res->renew)
|
|
status = decode_renew(xdr);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
/*
|
|
* Decode BIND_CONN_TO_SESSION response
|
|
*/
|
|
static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *res)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_bind_conn_to_session(xdr, res);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode EXCHANGE_ID response
|
|
*/
|
|
static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *res)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_exchange_id(xdr, res);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode CREATE_SESSION response
|
|
*/
|
|
static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *res)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_create_session(xdr, res);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode DESTROY_SESSION response
|
|
*/
|
|
static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *res)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_destroy_session(xdr, res);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode DESTROY_CLIENTID response
|
|
*/
|
|
static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *res)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_destroy_clientid(xdr, res);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode SEQUENCE response
|
|
*/
|
|
static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *res)
|
|
{
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_sequence(xdr, res, rqstp);
|
|
return status;
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Decode GET_LEASE_TIME response
|
|
*/
|
|
static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_get_lease_time_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
|
|
if (!status)
|
|
status = decode_putrootfh(xdr);
|
|
if (!status)
|
|
status = decode_fsinfo(xdr, res->lr_fsinfo);
|
|
return status;
|
|
}
|
|
|
|
#ifdef CONFIG_NFS_V4_1
|
|
|
|
/*
|
|
* Decode RECLAIM_COMPLETE response
|
|
*/
|
|
static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs41_reclaim_complete_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (!status)
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (!status)
|
|
status = decode_reclaim_complete(xdr, NULL);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode GETDEVINFO response
|
|
*/
|
|
static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_getdeviceinfo_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status != 0)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status != 0)
|
|
goto out;
|
|
status = decode_getdeviceinfo(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LAYOUTGET response
|
|
*/
|
|
static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_layoutget_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_layoutget(xdr, rqstp, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LAYOUTRETURN response
|
|
*/
|
|
static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_layoutreturn_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_layoutreturn(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode LAYOUTCOMMIT response
|
|
*/
|
|
static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_layoutcommit_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_layoutcommit(xdr, rqstp, res);
|
|
if (status)
|
|
goto out;
|
|
decode_getfattr(xdr, res->fattr, res->server);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode SECINFO_NO_NAME response
|
|
*/
|
|
static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs4_secinfo_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_putrootfh(xdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_secinfo_no_name(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode TEST_STATEID response
|
|
*/
|
|
static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs41_test_stateid_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_test_stateid(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Decode FREE_STATEID response
|
|
*/
|
|
static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
|
|
struct xdr_stream *xdr,
|
|
void *data)
|
|
{
|
|
struct nfs41_free_stateid_res *res = data;
|
|
struct compound_hdr hdr;
|
|
int status;
|
|
|
|
status = decode_compound_hdr(xdr, &hdr);
|
|
if (status)
|
|
goto out;
|
|
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
|
if (status)
|
|
goto out;
|
|
status = decode_free_stateid(xdr, res);
|
|
out:
|
|
return status;
|
|
}
|
|
#endif /* CONFIG_NFS_V4_1 */
|
|
|
|
/**
|
|
* nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
|
|
* the local page cache.
|
|
* @xdr: XDR stream where entry resides
|
|
* @entry: buffer to fill in with entry data
|
|
* @plus: boolean indicating whether this should be a readdirplus entry
|
|
*
|
|
* Returns zero if successful, otherwise a negative errno value is
|
|
* returned.
|
|
*
|
|
* This function is not invoked during READDIR reply decoding, but
|
|
* rather whenever an application invokes the getdents(2) system call
|
|
* on a directory already in our cache.
|
|
*/
|
|
int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
|
|
bool plus)
|
|
{
|
|
unsigned int savep;
|
|
uint32_t bitmap[3] = {0};
|
|
uint32_t len;
|
|
uint64_t new_cookie;
|
|
__be32 *p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EAGAIN;
|
|
if (*p == xdr_zero) {
|
|
p = xdr_inline_decode(xdr, 4);
|
|
if (unlikely(!p))
|
|
return -EAGAIN;
|
|
if (*p == xdr_zero)
|
|
return -EAGAIN;
|
|
entry->eof = 1;
|
|
return -EBADCOOKIE;
|
|
}
|
|
|
|
p = xdr_inline_decode(xdr, 12);
|
|
if (unlikely(!p))
|
|
return -EAGAIN;
|
|
p = xdr_decode_hyper(p, &new_cookie);
|
|
entry->len = be32_to_cpup(p);
|
|
|
|
p = xdr_inline_decode(xdr, entry->len);
|
|
if (unlikely(!p))
|
|
return -EAGAIN;
|
|
entry->name = (const char *) p;
|
|
|
|
/*
|
|
* In case the server doesn't return an inode number,
|
|
* we fake one here. (We don't use inode number 0,
|
|
* since glibc seems to choke on it...)
|
|
*/
|
|
entry->ino = 1;
|
|
entry->fattr->valid = 0;
|
|
|
|
if (decode_attr_bitmap(xdr, bitmap) < 0)
|
|
return -EAGAIN;
|
|
|
|
if (decode_attr_length(xdr, &len, &savep) < 0)
|
|
return -EAGAIN;
|
|
|
|
if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
|
|
NULL, entry->server) < 0)
|
|
return -EAGAIN;
|
|
if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
|
|
entry->ino = entry->fattr->mounted_on_fileid;
|
|
else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
|
|
entry->ino = entry->fattr->fileid;
|
|
|
|
entry->d_type = DT_UNKNOWN;
|
|
if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
|
|
entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
|
|
|
|
entry->cookie = new_cookie;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_NFS_V4_2
|
|
#include "nfs42xdr.c"
|
|
#endif /* CONFIG_NFS_V4_2 */
|
|
|
|
#define PROC(proc, argtype, restype) \
|
|
[NFSPROC4_CLNT_##proc] = { \
|
|
.p_proc = NFSPROC4_COMPOUND, \
|
|
.p_encode = nfs4_xdr_##argtype, \
|
|
.p_decode = nfs4_xdr_##restype, \
|
|
.p_arglen = NFS4_##argtype##_sz, \
|
|
.p_replen = NFS4_##restype##_sz, \
|
|
.p_statidx = NFSPROC4_CLNT_##proc, \
|
|
.p_name = #proc, \
|
|
}
|
|
|
|
#define STUB(proc) \
|
|
[NFSPROC4_CLNT_##proc] = { \
|
|
.p_name = #proc, \
|
|
}
|
|
|
|
#if defined(CONFIG_NFS_V4_1)
|
|
#define PROC41(proc, argtype, restype) \
|
|
PROC(proc, argtype, restype)
|
|
#else
|
|
#define PROC41(proc, argtype, restype) \
|
|
STUB(proc)
|
|
#endif
|
|
|
|
#if defined(CONFIG_NFS_V4_2)
|
|
#define PROC42(proc, argtype, restype) \
|
|
PROC(proc, argtype, restype)
|
|
#else
|
|
#define PROC42(proc, argtype, restype) \
|
|
STUB(proc)
|
|
#endif
|
|
|
|
const struct rpc_procinfo nfs4_procedures[] = {
|
|
PROC(READ, enc_read, dec_read),
|
|
PROC(WRITE, enc_write, dec_write),
|
|
PROC(COMMIT, enc_commit, dec_commit),
|
|
PROC(OPEN, enc_open, dec_open),
|
|
PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
|
|
PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
|
|
PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
|
|
PROC(CLOSE, enc_close, dec_close),
|
|
PROC(SETATTR, enc_setattr, dec_setattr),
|
|
PROC(FSINFO, enc_fsinfo, dec_fsinfo),
|
|
PROC(RENEW, enc_renew, dec_renew),
|
|
PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
|
|
PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
|
|
PROC(LOCK, enc_lock, dec_lock),
|
|
PROC(LOCKT, enc_lockt, dec_lockt),
|
|
PROC(LOCKU, enc_locku, dec_locku),
|
|
PROC(ACCESS, enc_access, dec_access),
|
|
PROC(GETATTR, enc_getattr, dec_getattr),
|
|
PROC(LOOKUP, enc_lookup, dec_lookup),
|
|
PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
|
|
PROC(REMOVE, enc_remove, dec_remove),
|
|
PROC(RENAME, enc_rename, dec_rename),
|
|
PROC(LINK, enc_link, dec_link),
|
|
PROC(SYMLINK, enc_symlink, dec_symlink),
|
|
PROC(CREATE, enc_create, dec_create),
|
|
PROC(PATHCONF, enc_pathconf, dec_pathconf),
|
|
PROC(STATFS, enc_statfs, dec_statfs),
|
|
PROC(READLINK, enc_readlink, dec_readlink),
|
|
PROC(READDIR, enc_readdir, dec_readdir),
|
|
PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
|
|
PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
|
|
PROC(GETACL, enc_getacl, dec_getacl),
|
|
PROC(SETACL, enc_setacl, dec_setacl),
|
|
PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
|
|
PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
|
|
PROC(SECINFO, enc_secinfo, dec_secinfo),
|
|
PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present),
|
|
PROC41(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
|
|
PROC41(CREATE_SESSION, enc_create_session, dec_create_session),
|
|
PROC41(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
|
|
PROC41(SEQUENCE, enc_sequence, dec_sequence),
|
|
PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
|
|
PROC41(RECLAIM_COMPLETE,enc_reclaim_complete, dec_reclaim_complete),
|
|
PROC41(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
|
|
PROC41(LAYOUTGET, enc_layoutget, dec_layoutget),
|
|
PROC41(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
|
|
PROC41(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
|
|
PROC41(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
|
|
PROC41(TEST_STATEID, enc_test_stateid, dec_test_stateid),
|
|
PROC41(FREE_STATEID, enc_free_stateid, dec_free_stateid),
|
|
STUB(GETDEVICELIST),
|
|
PROC41(BIND_CONN_TO_SESSION,
|
|
enc_bind_conn_to_session, dec_bind_conn_to_session),
|
|
PROC41(DESTROY_CLIENTID,enc_destroy_clientid, dec_destroy_clientid),
|
|
PROC42(SEEK, enc_seek, dec_seek),
|
|
PROC42(ALLOCATE, enc_allocate, dec_allocate),
|
|
PROC42(DEALLOCATE, enc_deallocate, dec_deallocate),
|
|
PROC42(LAYOUTSTATS, enc_layoutstats, dec_layoutstats),
|
|
PROC42(CLONE, enc_clone, dec_clone),
|
|
PROC42(COPY, enc_copy, dec_copy),
|
|
PROC42(OFFLOAD_CANCEL, enc_offload_cancel, dec_offload_cancel),
|
|
PROC42(COPY_NOTIFY, enc_copy_notify, dec_copy_notify),
|
|
PROC(LOOKUPP, enc_lookupp, dec_lookupp),
|
|
PROC42(LAYOUTERROR, enc_layouterror, dec_layouterror),
|
|
PROC42(GETXATTR, enc_getxattr, dec_getxattr),
|
|
PROC42(SETXATTR, enc_setxattr, dec_setxattr),
|
|
PROC42(LISTXATTRS, enc_listxattrs, dec_listxattrs),
|
|
PROC42(REMOVEXATTR, enc_removexattr, dec_removexattr),
|
|
PROC42(READ_PLUS, enc_read_plus, dec_read_plus),
|
|
};
|
|
|
|
static unsigned int nfs_version4_counts[ARRAY_SIZE(nfs4_procedures)];
|
|
const struct rpc_version nfs_version4 = {
|
|
.number = 4,
|
|
.nrprocs = ARRAY_SIZE(nfs4_procedures),
|
|
.procs = nfs4_procedures,
|
|
.counts = nfs_version4_counts,
|
|
};
|