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cc760de218
Commit 57ce37f9dc modified the NFSv4.2 Copy operation so that
it will update atime on the infd file whenever possible.
This is done by adding a Setattr of TimeAccess for the
input file.
This patch disables this change for the case of an NFSv4.2
mount with the "noatime" mount option, which avoids the
additional Setattr of TimeAccess operation.
MFC after: 1 week
5157 lines
139 KiB
C
5157 lines
139 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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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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* 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 contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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/*
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* These functions support the macros and help fiddle mbuf chains for
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* the nfs op functions. They do things like create the rpc header and
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* copy data between mbuf chains and uio lists.
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*/
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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include <fs/nfs/nfsport.h>
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#include <fs/nfsclient/nfsmount.h>
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#include <sys/extattr.h>
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#include <security/mac/mac_framework.h>
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#include <vm/vm_param.h>
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/*
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* Data items converted to xdr at startup, since they are constant
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* This is kinda hokey, but may save a little time doing byte swaps
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*/
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u_int32_t newnfs_true, newnfs_false, newnfs_xdrneg1;
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/* And other global data */
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nfstype nfsv34_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK, NFSOCK,
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NFFIFO, NFNON };
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__enum_uint8(vtype) newnv2tov_type[8] = { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VNON, VNON };
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__enum_uint8(vtype) nv34tov_type[8]={ VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO };
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struct timeval nfsboottime; /* Copy boottime once, so it never changes */
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int nfscl_ticks;
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int nfsrv_useacl = 1;
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struct nfsreqhead nfsd_reqq;
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int nfsrv_lease = NFSRV_LEASE;
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int ncl_mbuf_mlen = MLEN;
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int nfsrv_doflexfile = 0;
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NFSNAMEIDMUTEX;
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NFSSOCKMUTEX;
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extern int nfsrv_lughashsize;
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extern struct mtx nfsrv_dslock_mtx;
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extern volatile int nfsrv_devidcnt;
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extern int nfscl_debuglevel;
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extern struct nfsdevicehead nfsrv_devidhead;
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extern struct nfsstatsv1 nfsstatsv1;
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extern uint32_t nfs_srvmaxio;
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NFSD_VNET_DEFINE(int, nfsd_enable_stringtouid) = 0;
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NFSD_VNET_DEFINE(struct nfssockreq, nfsrv_nfsuserdsock);
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NFSD_VNET_DEFINE(nfsuserd_state, nfsrv_nfsuserd) = NOTRUNNING;
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NFSD_VNET_DEFINE(uid_t, nfsrv_defaultuid) = UID_NOBODY;
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NFSD_VNET_DEFINE(gid_t, nfsrv_defaultgid) = GID_NOGROUP;
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NFSD_VNET_DEFINE_STATIC(int, nfsrv_userdupcalls) = 0;
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SYSCTL_DECL(_vfs_nfs);
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NFSD_VNET_DEFINE_STATIC(int, nfs_enable_uidtostring) = 0;
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SYSCTL_INT(_vfs_nfs, OID_AUTO, enable_uidtostring,
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CTLFLAG_NFSD_VNET | CTLFLAG_RW, &NFSD_VNET_NAME(nfs_enable_uidtostring), 0,
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"Make nfs always send numeric owner_names");
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int nfsrv_maxpnfsmirror = 1;
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SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsmirror, CTLFLAG_RD,
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&nfsrv_maxpnfsmirror, 0, "Mirror level for pNFS service");
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/*
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* This array of structures indicates, for V4:
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* retfh - which of 3 types of calling args are used
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* 0 - doesn't change cfh or use a sfh
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* 1 - replaces cfh with a new one (unless it returns an error status)
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* 2 - uses cfh and sfh
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* needscfh - if the op wants a cfh and premtime
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* 0 - doesn't use a cfh
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* 1 - uses a cfh, but doesn't want pre-op attributes
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* 2 - uses a cfh and wants pre-op attributes
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* savereply - indicates a non-idempotent Op
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* 0 - not non-idempotent
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* 1 - non-idempotent
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* Ops that are ordered via seqid# are handled separately from these
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* non-idempotent Ops.
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* Define it here, since it is used by both the client and server.
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*/
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struct nfsv4_opflag nfsv4_opflag[NFSV42_NOPS] = {
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* undef */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* undef */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* undef */
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{ 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Access */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Close */
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{ 0, 2, 0, 1, LK_EXCLUSIVE, 1, 1 }, /* Commit */
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{ 1, 2, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Create */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Delegpurge */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Delegreturn */
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{ 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Getattr */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* GetFH */
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{ 2, 1, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Link */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Lock */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* LockT */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* LockU */
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{ 1, 2, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Lookup */
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{ 1, 2, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Lookupp */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* NVerify */
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{ 1, 1, 0, 1, LK_EXCLUSIVE, 1, 0 }, /* Open */
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{ 1, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* OpenAttr */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* OpenConfirm */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* OpenDowngrade */
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{ 1, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* PutFH */
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{ 1, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* PutPubFH */
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{ 1, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* PutRootFH */
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{ 0, 1, 0, 0, LK_SHARED, 1, 0 }, /* Read */
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{ 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Readdir */
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{ 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* ReadLink */
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{ 0, 2, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Remove */
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{ 2, 1, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Rename */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Renew */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* RestoreFH */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* SaveFH */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* SecInfo */
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{ 0, 2, 1, 1, LK_EXCLUSIVE, 1, 0 }, /* Setattr */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* SetClientID */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* SetClientIDConfirm */
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{ 0, 2, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Verify (AppWrite) */
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{ 0, 2, 1, 1, LK_EXCLUSIVE, 1, 0 }, /* Write */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* ReleaseLockOwner */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Backchannel Ctrl */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Bind Conn to Sess */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Exchange ID */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Create Session */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Destroy Session */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Free StateID */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Get Dir Deleg */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Get Device Info */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Get Device List */
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{ 0, 1, 0, 1, LK_EXCLUSIVE, 1, 1 }, /* Layout Commit */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Layout Get */
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{ 0, 1, 0, 1, LK_EXCLUSIVE, 1, 0 }, /* Layout Return */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Secinfo No name */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Sequence */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Set SSV */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Test StateID */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Want Delegation */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 0, 0 }, /* Destroy ClientID */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Reclaim Complete */
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{ 0, 1, 1, 1, LK_EXCLUSIVE, 1, 0 }, /* Allocate */
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{ 2, 1, 1, 0, LK_SHARED, 1, 0 }, /* Copy */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Copy Notify */
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{ 0, 2, 1, 1, LK_EXCLUSIVE, 1, 0 }, /* Deallocate */
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{ 0, 1, 0, 0, LK_SHARED, 1, 0 }, /* IO Advise */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Layout Error */
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{ 0, 1, 0, 0, LK_EXCLUSIVE, 1, 0 }, /* Layout Stats */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Offload Cancel */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Offload Status */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Read Plus */
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{ 0, 1, 0, 0, LK_SHARED, 1, 0 }, /* Seek */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Write Same */
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{ 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Clone */
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{ 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Getxattr */
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{ 0, 1, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Setxattr */
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{ 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Listxattrs */
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{ 0, 1, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Removexattr */
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};
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static int ncl_mbuf_mhlen = MHLEN;
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struct nfsrv_lughash {
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struct mtx mtx;
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struct nfsuserhashhead lughead;
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};
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NFSD_VNET_DEFINE_STATIC(int, nfsrv_usercnt) = 0;
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NFSD_VNET_DEFINE_STATIC(int, nfsrv_dnsnamelen) = 0;
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NFSD_VNET_DEFINE_STATIC(int, nfsrv_usermax) = 999999999;
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NFSD_VNET_DEFINE_STATIC(struct nfsrv_lughash *, nfsuserhash) = NULL;
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NFSD_VNET_DEFINE_STATIC(struct nfsrv_lughash *, nfsusernamehash) = NULL;
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NFSD_VNET_DEFINE_STATIC(struct nfsrv_lughash *, nfsgrouphash) = NULL;
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NFSD_VNET_DEFINE_STATIC(struct nfsrv_lughash *, nfsgroupnamehash) = NULL;
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NFSD_VNET_DEFINE_STATIC(u_char *, nfsrv_dnsname) = NULL;
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/*
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* This static array indicates whether or not the RPC generates a large
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* reply. This is used by nfs_reply() to decide whether or not an mbuf
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* cluster should be allocated. (If a cluster is required by an RPC
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* marked 0 in this array, the code will still work, just not quite as
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* efficiently.)
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*/
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static int nfs_bigreply[NFSV42_NPROCS] = { 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 0, 0, 1, 0, 0, 0, 0, 0 };
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/* local functions */
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static int nfsrv_skipace(struct nfsrv_descript *nd, int *acesizep);
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static void nfsv4_wanted(struct nfsv4lock *lp);
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static uint32_t nfsv4_filesavail(struct statfs *, struct mount *);
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static int nfsrv_cmpmixedcase(u_char *cp, u_char *cp2, int len);
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static int nfsrv_getuser(int procnum, uid_t uid, gid_t gid, char *name);
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static void nfsrv_removeuser(struct nfsusrgrp *usrp, int isuser);
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static int nfsrv_getrefstr(struct nfsrv_descript *, u_char **, u_char **,
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int *, int *);
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static void nfsrv_refstrbigenough(int, u_char **, u_char **, int *);
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static struct {
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int op;
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int opcnt;
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const u_char *tag;
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int taglen;
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} nfsv4_opmap[NFSV42_NPROCS] = {
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{ 0, 1, "Null", 4 },
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{ NFSV4OP_GETATTR, 1, "Getattr", 7, },
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{ NFSV4OP_SETATTR, 2, "Setattr", 7, },
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{ NFSV4OP_LOOKUP, 3, "Lookup", 6, },
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{ NFSV4OP_ACCESS, 2, "Access", 6, },
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{ NFSV4OP_READLINK, 2, "Readlink", 8, },
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{ NFSV4OP_READ, 1, "Read", 4, },
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{ NFSV4OP_WRITE, 2, "Write", 5, },
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{ NFSV4OP_OPEN, 5, "Open", 4, },
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{ NFSV4OP_CREATE, 5, "Create", 6, },
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{ NFSV4OP_CREATE, 1, "Create", 6, },
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{ NFSV4OP_CREATE, 3, "Create", 6, },
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{ NFSV4OP_REMOVE, 1, "Remove", 6, },
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{ NFSV4OP_REMOVE, 1, "Remove", 6, },
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{ NFSV4OP_SAVEFH, 5, "Rename", 6, },
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{ NFSV4OP_SAVEFH, 4, "Link", 4, },
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{ NFSV4OP_READDIR, 2, "Readdir", 7, },
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{ NFSV4OP_READDIR, 2, "Readdir", 7, },
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{ NFSV4OP_GETATTR, 1, "Getattr", 7, },
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{ NFSV4OP_GETATTR, 1, "Getattr", 7, },
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{ NFSV4OP_GETATTR, 1, "Getattr", 7, },
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{ NFSV4OP_COMMIT, 2, "Commit", 6, },
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{ NFSV4OP_LOOKUPP, 3, "Lookupp", 7, },
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{ NFSV4OP_SETCLIENTID, 1, "SetClientID", 11, },
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{ NFSV4OP_SETCLIENTIDCFRM, 1, "SetClientIDConfirm", 18, },
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{ NFSV4OP_LOCK, 1, "Lock", 4, },
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{ NFSV4OP_LOCKU, 1, "LockU", 5, },
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{ NFSV4OP_OPEN, 2, "Open", 4, },
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{ NFSV4OP_CLOSE, 1, "Close", 5, },
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{ NFSV4OP_OPENCONFIRM, 1, "Openconfirm", 11, },
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{ NFSV4OP_LOCKT, 1, "LockT", 5, },
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{ NFSV4OP_OPENDOWNGRADE, 1, "Opendowngrade", 13, },
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{ NFSV4OP_RENEW, 1, "Renew", 5, },
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{ NFSV4OP_PUTROOTFH, 1, "Dirpath", 7, },
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{ NFSV4OP_RELEASELCKOWN, 1, "Rellckown", 9, },
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{ NFSV4OP_DELEGRETURN, 1, "Delegret", 8, },
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{ NFSV4OP_DELEGRETURN, 3, "DelegRemove", 11, },
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{ NFSV4OP_DELEGRETURN, 7, "DelegRename1", 12, },
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{ NFSV4OP_DELEGRETURN, 9, "DelegRename2", 12, },
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{ NFSV4OP_GETATTR, 1, "Getacl", 6, },
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{ NFSV4OP_SETATTR, 1, "Setacl", 6, },
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{ NFSV4OP_EXCHANGEID, 1, "ExchangeID", 10, },
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{ NFSV4OP_CREATESESSION, 1, "CreateSession", 13, },
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{ NFSV4OP_DESTROYSESSION, 1, "DestroySession", 14, },
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{ NFSV4OP_DESTROYCLIENTID, 1, "DestroyClient", 13, },
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{ NFSV4OP_FREESTATEID, 1, "FreeStateID", 11, },
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{ NFSV4OP_LAYOUTGET, 1, "LayoutGet", 9, },
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{ NFSV4OP_GETDEVINFO, 1, "GetDeviceInfo", 13, },
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{ NFSV4OP_LAYOUTCOMMIT, 1, "LayoutCommit", 12, },
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{ NFSV4OP_LAYOUTRETURN, 1, "LayoutReturn", 12, },
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{ NFSV4OP_RECLAIMCOMPL, 1, "ReclaimComplete", 15, },
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{ NFSV4OP_WRITE, 1, "WriteDS", 7, },
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{ NFSV4OP_READ, 1, "ReadDS", 6, },
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{ NFSV4OP_COMMIT, 1, "CommitDS", 8, },
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{ NFSV4OP_OPEN, 3, "OpenLayoutGet", 13, },
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{ NFSV4OP_OPEN, 8, "CreateLayGet", 12, },
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{ NFSV4OP_IOADVISE, 1, "Advise", 6, },
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{ NFSV4OP_ALLOCATE, 2, "Allocate", 8, },
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{ NFSV4OP_SAVEFH, 5, "Copy", 4, },
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{ NFSV4OP_SEEK, 2, "Seek", 4, },
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{ NFSV4OP_SEEK, 1, "SeekDS", 6, },
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{ NFSV4OP_GETXATTR, 2, "Getxattr", 8, },
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{ NFSV4OP_SETXATTR, 2, "Setxattr", 8, },
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{ NFSV4OP_REMOVEXATTR, 2, "Rmxattr", 7, },
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{ NFSV4OP_LISTXATTRS, 2, "Listxattr", 9, },
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{ NFSV4OP_BINDCONNTOSESS, 1, "BindConSess", 11, },
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{ NFSV4OP_LOOKUP, 5, "LookupOpen", 10, },
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{ NFSV4OP_DEALLOCATE, 2, "Deallocate", 10, },
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{ NFSV4OP_LAYOUTERROR, 1, "LayoutError", 11, },
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{ NFSV4OP_VERIFY, 3, "AppendWrite", 11, },
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};
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/*
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* NFS RPCS that have large request message size.
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*/
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static int nfs_bigrequest[NFSV42_NPROCS] = {
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0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
|
|
0, 1
|
|
};
|
|
|
|
/*
|
|
* Start building a request. Mostly just put the first file handle in
|
|
* place.
|
|
*/
|
|
void
|
|
nfscl_reqstart(struct nfsrv_descript *nd, int procnum, struct nfsmount *nmp,
|
|
u_int8_t *nfhp, int fhlen, u_int32_t **opcntpp, struct nfsclsession *sep,
|
|
int vers, int minorvers, struct ucred *cred)
|
|
{
|
|
struct mbuf *mb;
|
|
u_int32_t *tl;
|
|
int opcnt;
|
|
nfsattrbit_t attrbits;
|
|
|
|
/*
|
|
* First, fill in some of the fields of nd.
|
|
*/
|
|
nd->nd_slotseq = NULL;
|
|
if (vers == NFS_VER4) {
|
|
nd->nd_flag = ND_NFSV4 | ND_NFSCL;
|
|
if (minorvers == NFSV41_MINORVERSION)
|
|
nd->nd_flag |= ND_NFSV41;
|
|
else if (minorvers == NFSV42_MINORVERSION)
|
|
nd->nd_flag |= (ND_NFSV41 | ND_NFSV42);
|
|
} else if (vers == NFS_VER3)
|
|
nd->nd_flag = ND_NFSV3 | ND_NFSCL;
|
|
else {
|
|
if (NFSHASNFSV4(nmp)) {
|
|
nd->nd_flag = ND_NFSV4 | ND_NFSCL;
|
|
if (nmp->nm_minorvers == 1)
|
|
nd->nd_flag |= ND_NFSV41;
|
|
else if (nmp->nm_minorvers == 2)
|
|
nd->nd_flag |= (ND_NFSV41 | ND_NFSV42);
|
|
} else if (NFSHASNFSV3(nmp))
|
|
nd->nd_flag = ND_NFSV3 | ND_NFSCL;
|
|
else
|
|
nd->nd_flag = ND_NFSV2 | ND_NFSCL;
|
|
}
|
|
nd->nd_procnum = procnum;
|
|
nd->nd_repstat = 0;
|
|
nd->nd_maxextsiz = 0;
|
|
|
|
/*
|
|
* Get the first mbuf for the request.
|
|
*/
|
|
if (nfs_bigrequest[procnum])
|
|
NFSMCLGET(mb, M_WAITOK);
|
|
else
|
|
NFSMGET(mb);
|
|
mb->m_len = 0;
|
|
nd->nd_mreq = nd->nd_mb = mb;
|
|
nd->nd_bpos = mtod(mb, char *);
|
|
|
|
/* For NFSPROC_NULL, there are no arguments. */
|
|
if (procnum == NFSPROC_NULL)
|
|
goto out;
|
|
|
|
/*
|
|
* And fill the first file handle into the request.
|
|
*/
|
|
if (nd->nd_flag & ND_NFSV4) {
|
|
opcnt = nfsv4_opmap[procnum].opcnt +
|
|
nfsv4_opflag[nfsv4_opmap[procnum].op].needscfh;
|
|
if ((nd->nd_flag & ND_NFSV41) != 0) {
|
|
opcnt += nfsv4_opflag[nfsv4_opmap[procnum].op].needsseq;
|
|
if (procnum == NFSPROC_RENEW)
|
|
/*
|
|
* For the special case of Renew, just do a
|
|
* Sequence Op.
|
|
*/
|
|
opcnt = 1;
|
|
else if (procnum == NFSPROC_WRITEDS ||
|
|
procnum == NFSPROC_COMMITDS)
|
|
/*
|
|
* For the special case of a Writeor Commit to
|
|
* a DS, the opcnt == 3, for Sequence, PutFH,
|
|
* Write/Commit.
|
|
*/
|
|
opcnt = 3;
|
|
}
|
|
/*
|
|
* What should the tag really be?
|
|
*/
|
|
(void) nfsm_strtom(nd, nfsv4_opmap[procnum].tag,
|
|
nfsv4_opmap[procnum].taglen);
|
|
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
|
|
if ((nd->nd_flag & ND_NFSV42) != 0)
|
|
*tl++ = txdr_unsigned(NFSV42_MINORVERSION);
|
|
else if ((nd->nd_flag & ND_NFSV41) != 0)
|
|
*tl++ = txdr_unsigned(NFSV41_MINORVERSION);
|
|
else
|
|
*tl++ = txdr_unsigned(NFSV4_MINORVERSION);
|
|
if (opcntpp != NULL)
|
|
*opcntpp = tl;
|
|
*tl = txdr_unsigned(opcnt);
|
|
if ((nd->nd_flag & ND_NFSV41) != 0 &&
|
|
nfsv4_opflag[nfsv4_opmap[procnum].op].needsseq > 0) {
|
|
if (nfsv4_opflag[nfsv4_opmap[procnum].op].loopbadsess >
|
|
0)
|
|
nd->nd_flag |= ND_LOOPBADSESS;
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV4OP_SEQUENCE);
|
|
if (sep == NULL) {
|
|
sep = nfsmnt_mdssession(nmp);
|
|
/*
|
|
* For MDS mount sessions, check for bad
|
|
* slots. If the caller does not want this
|
|
* check to be done, the "cred" argument can
|
|
* be passed in as NULL.
|
|
*/
|
|
nfsv4_setsequence(nmp, nd, sep,
|
|
nfs_bigreply[procnum], cred);
|
|
} else
|
|
nfsv4_setsequence(nmp, nd, sep,
|
|
nfs_bigreply[procnum], NULL);
|
|
}
|
|
if (nfsv4_opflag[nfsv4_opmap[procnum].op].needscfh > 0) {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV4OP_PUTFH);
|
|
(void)nfsm_fhtom(nmp, nd, nfhp, fhlen, 0);
|
|
if (nfsv4_opflag[nfsv4_opmap[procnum].op].needscfh
|
|
== 2 && procnum != NFSPROC_WRITEDS &&
|
|
procnum != NFSPROC_COMMITDS) {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV4OP_GETATTR);
|
|
/*
|
|
* For Lookup Ops, we want all the directory
|
|
* attributes, so we can load the name cache.
|
|
*/
|
|
if (procnum == NFSPROC_LOOKUP ||
|
|
procnum == NFSPROC_LOOKUPP ||
|
|
procnum == NFSPROC_LOOKUPOPEN)
|
|
NFSGETATTR_ATTRBIT(&attrbits);
|
|
else {
|
|
NFSWCCATTR_ATTRBIT(&attrbits);
|
|
/* For AppendWrite, get the size. */
|
|
if (procnum == NFSPROC_APPENDWRITE)
|
|
NFSSETBIT_ATTRBIT(&attrbits,
|
|
NFSATTRBIT_SIZE);
|
|
nd->nd_flag |= ND_V4WCCATTR;
|
|
}
|
|
(void) nfsrv_putattrbit(nd, &attrbits);
|
|
}
|
|
}
|
|
if (procnum != NFSPROC_RENEW ||
|
|
(nd->nd_flag & ND_NFSV41) == 0) {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(nfsv4_opmap[procnum].op);
|
|
}
|
|
} else {
|
|
(void)nfsm_fhtom(NULL, nd, nfhp, fhlen, 0);
|
|
}
|
|
out:
|
|
if (procnum < NFSV42_NPROCS)
|
|
NFSINCRGLOBAL(nfsstatsv1.rpccnt[procnum]);
|
|
}
|
|
|
|
/*
|
|
* Put a state Id in the mbuf list.
|
|
*/
|
|
void
|
|
nfsm_stateidtom(struct nfsrv_descript *nd, nfsv4stateid_t *stateidp, int flag)
|
|
{
|
|
nfsv4stateid_t *st;
|
|
|
|
NFSM_BUILD(st, nfsv4stateid_t *, NFSX_STATEID);
|
|
if (flag == NFSSTATEID_PUTALLZERO) {
|
|
st->seqid = 0;
|
|
st->other[0] = 0;
|
|
st->other[1] = 0;
|
|
st->other[2] = 0;
|
|
} else if (flag == NFSSTATEID_PUTALLONE) {
|
|
st->seqid = 0xffffffff;
|
|
st->other[0] = 0xffffffff;
|
|
st->other[1] = 0xffffffff;
|
|
st->other[2] = 0xffffffff;
|
|
} else if (flag == NFSSTATEID_PUTSEQIDZERO) {
|
|
st->seqid = 0;
|
|
st->other[0] = stateidp->other[0];
|
|
st->other[1] = stateidp->other[1];
|
|
st->other[2] = stateidp->other[2];
|
|
} else {
|
|
st->seqid = stateidp->seqid;
|
|
st->other[0] = stateidp->other[0];
|
|
st->other[1] = stateidp->other[1];
|
|
st->other[2] = stateidp->other[2];
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Fill in the setable attributes. The full argument indicates whether
|
|
* to fill in them all or just mode and time.
|
|
*/
|
|
void
|
|
nfscl_fillsattr(struct nfsrv_descript *nd, struct vattr *vap,
|
|
struct vnode *vp, int flags, u_int32_t rdev)
|
|
{
|
|
u_int32_t *tl;
|
|
struct nfsv2_sattr *sp;
|
|
nfsattrbit_t attrbits;
|
|
struct nfsnode *np;
|
|
|
|
switch (nd->nd_flag & (ND_NFSV2 | ND_NFSV3 | ND_NFSV4)) {
|
|
case ND_NFSV2:
|
|
NFSM_BUILD(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
|
|
if (vap->va_mode == (mode_t)VNOVAL)
|
|
sp->sa_mode = newnfs_xdrneg1;
|
|
else
|
|
sp->sa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode);
|
|
if (vap->va_uid == (uid_t)VNOVAL)
|
|
sp->sa_uid = newnfs_xdrneg1;
|
|
else
|
|
sp->sa_uid = txdr_unsigned(vap->va_uid);
|
|
if (vap->va_gid == (gid_t)VNOVAL)
|
|
sp->sa_gid = newnfs_xdrneg1;
|
|
else
|
|
sp->sa_gid = txdr_unsigned(vap->va_gid);
|
|
if (flags & NFSSATTR_SIZE0)
|
|
sp->sa_size = 0;
|
|
else if (flags & NFSSATTR_SIZENEG1)
|
|
sp->sa_size = newnfs_xdrneg1;
|
|
else if (flags & NFSSATTR_SIZERDEV)
|
|
sp->sa_size = txdr_unsigned(rdev);
|
|
else
|
|
sp->sa_size = txdr_unsigned(vap->va_size);
|
|
txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
|
|
txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
|
|
break;
|
|
case ND_NFSV3:
|
|
if (vap->va_mode != (mode_t)VNOVAL) {
|
|
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
|
|
*tl++ = newnfs_true;
|
|
*tl = txdr_unsigned(vap->va_mode);
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_false;
|
|
}
|
|
if ((flags & NFSSATTR_FULL) && vap->va_uid != (uid_t)VNOVAL) {
|
|
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
|
|
*tl++ = newnfs_true;
|
|
*tl = txdr_unsigned(vap->va_uid);
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_false;
|
|
}
|
|
if ((flags & NFSSATTR_FULL) && vap->va_gid != (gid_t)VNOVAL) {
|
|
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
|
|
*tl++ = newnfs_true;
|
|
*tl = txdr_unsigned(vap->va_gid);
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_false;
|
|
}
|
|
if ((flags & NFSSATTR_FULL) && vap->va_size != VNOVAL) {
|
|
NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
|
|
*tl++ = newnfs_true;
|
|
txdr_hyper(vap->va_size, tl);
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_false;
|
|
}
|
|
if (vap->va_atime.tv_sec != VNOVAL) {
|
|
if ((vap->va_vaflags & VA_UTIMES_NULL) == 0) {
|
|
NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
|
|
*tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);
|
|
txdr_nfsv3time(&vap->va_atime, tl);
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER);
|
|
}
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);
|
|
}
|
|
if (vap->va_mtime.tv_sec != VNOVAL) {
|
|
if ((vap->va_vaflags & VA_UTIMES_NULL) == 0) {
|
|
NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED);
|
|
*tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);
|
|
txdr_nfsv3time(&vap->va_mtime, tl);
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER);
|
|
}
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);
|
|
}
|
|
break;
|
|
case ND_NFSV4:
|
|
NFSZERO_ATTRBIT(&attrbits);
|
|
if (vap->va_mode != (mode_t)VNOVAL)
|
|
NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_MODE);
|
|
if ((flags & NFSSATTR_FULL) && vap->va_uid != (uid_t)VNOVAL)
|
|
NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNER);
|
|
if ((flags & NFSSATTR_FULL) && vap->va_gid != (gid_t)VNOVAL)
|
|
NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_OWNERGROUP);
|
|
if ((flags & NFSSATTR_FULL) && vap->va_size != VNOVAL)
|
|
NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_SIZE);
|
|
if (vap->va_atime.tv_sec != VNOVAL)
|
|
NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET);
|
|
if (vap->va_mtime.tv_sec != VNOVAL)
|
|
NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFYSET);
|
|
if (vap->va_birthtime.tv_sec != VNOVAL &&
|
|
strcmp(vp->v_mount->mnt_vfc->vfc_name, "nfs") == 0) {
|
|
/*
|
|
* We can only test for support of TimeCreate if
|
|
* the "vp" argument is for an NFS vnode.
|
|
*/
|
|
np = VTONFS(vp);
|
|
if (NFSISSET_ATTRBIT(&np->n_vattr.na_suppattr,
|
|
NFSATTRBIT_TIMECREATE))
|
|
NFSSETBIT_ATTRBIT(&attrbits,
|
|
NFSATTRBIT_TIMECREATE);
|
|
}
|
|
(void) nfsv4_fillattr(nd, vp->v_mount, vp, NULL, vap, NULL, 0,
|
|
&attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0, NULL);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* copies mbuf chain to the uio scatter/gather list
|
|
*/
|
|
int
|
|
nfsm_mbufuio(struct nfsrv_descript *nd, struct uio *uiop, int siz)
|
|
{
|
|
char *mbufcp, *uiocp;
|
|
int xfer, left, len;
|
|
struct mbuf *mp;
|
|
long uiosiz, rem;
|
|
int error = 0;
|
|
|
|
mp = nd->nd_md;
|
|
mbufcp = nd->nd_dpos;
|
|
len = mtod(mp, caddr_t) + mp->m_len - mbufcp;
|
|
rem = NFSM_RNDUP(siz) - siz;
|
|
while (siz > 0) {
|
|
if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) {
|
|
error = EBADRPC;
|
|
goto out;
|
|
}
|
|
left = uiop->uio_iov->iov_len;
|
|
uiocp = uiop->uio_iov->iov_base;
|
|
if (left > siz)
|
|
left = siz;
|
|
uiosiz = left;
|
|
while (left > 0) {
|
|
while (len == 0) {
|
|
mp = mp->m_next;
|
|
if (mp == NULL) {
|
|
error = EBADRPC;
|
|
goto out;
|
|
}
|
|
mbufcp = mtod(mp, caddr_t);
|
|
len = mp->m_len;
|
|
KASSERT(len >= 0,
|
|
("len %d, corrupted mbuf?", len));
|
|
}
|
|
xfer = (left > len) ? len : left;
|
|
if (uiop->uio_segflg == UIO_SYSSPACE)
|
|
NFSBCOPY(mbufcp, uiocp, xfer);
|
|
else {
|
|
error = copyout(mbufcp, uiocp, xfer);
|
|
if (error != 0)
|
|
goto out;
|
|
}
|
|
left -= xfer;
|
|
len -= xfer;
|
|
mbufcp += xfer;
|
|
uiocp += xfer;
|
|
uiop->uio_offset += xfer;
|
|
uiop->uio_resid -= xfer;
|
|
}
|
|
if (uiop->uio_iov->iov_len <= siz) {
|
|
uiop->uio_iovcnt--;
|
|
uiop->uio_iov++;
|
|
} else {
|
|
uiop->uio_iov->iov_base = (void *)
|
|
((char *)uiop->uio_iov->iov_base + uiosiz);
|
|
uiop->uio_iov->iov_len -= uiosiz;
|
|
}
|
|
siz -= uiosiz;
|
|
}
|
|
nd->nd_dpos = mbufcp;
|
|
nd->nd_md = mp;
|
|
if (rem > 0) {
|
|
if (len < rem)
|
|
error = nfsm_advance(nd, rem, len);
|
|
else
|
|
nd->nd_dpos += rem;
|
|
}
|
|
|
|
out:
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Help break down an mbuf chain by setting the first siz bytes contiguous
|
|
* pointed to by returned val.
|
|
* This is used by the macro NFSM_DISSECT for tough
|
|
* cases.
|
|
*/
|
|
void *
|
|
nfsm_dissct(struct nfsrv_descript *nd, int siz, int how)
|
|
{
|
|
struct mbuf *mp2;
|
|
int siz2, xfer;
|
|
caddr_t p;
|
|
int left;
|
|
caddr_t retp;
|
|
|
|
retp = NULL;
|
|
left = mtod(nd->nd_md, caddr_t) + nd->nd_md->m_len - nd->nd_dpos;
|
|
while (left == 0) {
|
|
nd->nd_md = nd->nd_md->m_next;
|
|
if (nd->nd_md == NULL)
|
|
return (retp);
|
|
left = nd->nd_md->m_len;
|
|
nd->nd_dpos = mtod(nd->nd_md, caddr_t);
|
|
}
|
|
if (left >= siz) {
|
|
retp = nd->nd_dpos;
|
|
nd->nd_dpos += siz;
|
|
} else if (nd->nd_md->m_next == NULL) {
|
|
return (retp);
|
|
} else if (siz > ncl_mbuf_mhlen) {
|
|
panic("nfs S too big");
|
|
} else {
|
|
MGET(mp2, how, MT_DATA);
|
|
if (mp2 == NULL)
|
|
return (NULL);
|
|
mp2->m_next = nd->nd_md->m_next;
|
|
nd->nd_md->m_next = mp2;
|
|
nd->nd_md->m_len -= left;
|
|
nd->nd_md = mp2;
|
|
retp = p = mtod(mp2, caddr_t);
|
|
NFSBCOPY(nd->nd_dpos, p, left); /* Copy what was left */
|
|
siz2 = siz - left;
|
|
p += left;
|
|
mp2 = mp2->m_next;
|
|
/* Loop around copying up the siz2 bytes */
|
|
while (siz2 > 0) {
|
|
if (mp2 == NULL)
|
|
return (NULL);
|
|
xfer = (siz2 > mp2->m_len) ? mp2->m_len : siz2;
|
|
if (xfer > 0) {
|
|
NFSBCOPY(mtod(mp2, caddr_t), p, xfer);
|
|
mp2->m_data += xfer;
|
|
mp2->m_len -= xfer;
|
|
p += xfer;
|
|
siz2 -= xfer;
|
|
}
|
|
if (siz2 > 0)
|
|
mp2 = mp2->m_next;
|
|
}
|
|
nd->nd_md->m_len = siz;
|
|
nd->nd_md = mp2;
|
|
nd->nd_dpos = mtod(mp2, caddr_t);
|
|
}
|
|
return (retp);
|
|
}
|
|
|
|
/*
|
|
* Advance the position in the mbuf chain.
|
|
* If offs == 0, this is a no-op, but it is simpler to just return from
|
|
* here than check for offs > 0 for all calls to nfsm_advance.
|
|
* If left == -1, it should be calculated here.
|
|
*/
|
|
int
|
|
nfsm_advance(struct nfsrv_descript *nd, int offs, int left)
|
|
{
|
|
int error = 0;
|
|
|
|
if (offs == 0)
|
|
goto out;
|
|
/*
|
|
* A negative offs might indicate a corrupted mbuf chain and,
|
|
* as such, a printf is logged.
|
|
*/
|
|
if (offs < 0) {
|
|
printf("nfsrv_advance: negative offs\n");
|
|
error = EBADRPC;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* If left == -1, calculate it here.
|
|
*/
|
|
if (left == -1)
|
|
left = mtod(nd->nd_md, caddr_t) + nd->nd_md->m_len -
|
|
nd->nd_dpos;
|
|
|
|
/*
|
|
* Loop around, advancing over the mbuf data.
|
|
*/
|
|
while (offs > left) {
|
|
offs -= left;
|
|
nd->nd_md = nd->nd_md->m_next;
|
|
if (nd->nd_md == NULL) {
|
|
error = EBADRPC;
|
|
goto out;
|
|
}
|
|
left = nd->nd_md->m_len;
|
|
nd->nd_dpos = mtod(nd->nd_md, caddr_t);
|
|
}
|
|
nd->nd_dpos += offs;
|
|
|
|
out:
|
|
NFSEXITCODE(error);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Copy a string into mbuf(s).
|
|
* Return the number of bytes output, including XDR overheads.
|
|
*/
|
|
int
|
|
nfsm_strtom(struct nfsrv_descript *nd, const char *cp, int siz)
|
|
{
|
|
struct mbuf *m2;
|
|
int xfer, left;
|
|
struct mbuf *m1;
|
|
int rem, bytesize;
|
|
u_int32_t *tl;
|
|
char *cp2;
|
|
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(siz);
|
|
rem = NFSM_RNDUP(siz) - siz;
|
|
bytesize = NFSX_UNSIGNED + siz + rem;
|
|
m2 = nd->nd_mb;
|
|
cp2 = nd->nd_bpos;
|
|
if ((nd->nd_flag & ND_EXTPG) != 0)
|
|
left = nd->nd_bextpgsiz;
|
|
else
|
|
left = M_TRAILINGSPACE(m2);
|
|
|
|
KASSERT(((m2->m_flags & (M_EXT | M_EXTPG)) ==
|
|
(M_EXT | M_EXTPG) && (nd->nd_flag & ND_EXTPG) != 0) ||
|
|
((m2->m_flags & (M_EXT | M_EXTPG)) !=
|
|
(M_EXT | M_EXTPG) && (nd->nd_flag & ND_EXTPG) == 0),
|
|
("nfsm_strtom: ext_pgs and non-ext_pgs mbufs mixed"));
|
|
/*
|
|
* Loop around copying the string to mbuf(s).
|
|
*/
|
|
while (siz > 0) {
|
|
if (left == 0) {
|
|
if ((nd->nd_flag & ND_EXTPG) != 0) {
|
|
m2 = nfsm_add_ext_pgs(m2,
|
|
nd->nd_maxextsiz, &nd->nd_bextpg);
|
|
cp2 = (char *)(void *)PHYS_TO_DMAP(
|
|
m2->m_epg_pa[nd->nd_bextpg]);
|
|
nd->nd_bextpgsiz = left = PAGE_SIZE;
|
|
} else {
|
|
if (siz > ncl_mbuf_mlen)
|
|
NFSMCLGET(m1, M_WAITOK);
|
|
else
|
|
NFSMGET(m1);
|
|
m1->m_len = 0;
|
|
cp2 = mtod(m1, char *);
|
|
left = M_TRAILINGSPACE(m1);
|
|
m2->m_next = m1;
|
|
m2 = m1;
|
|
}
|
|
}
|
|
if (left >= siz)
|
|
xfer = siz;
|
|
else
|
|
xfer = left;
|
|
NFSBCOPY(cp, cp2, xfer);
|
|
cp += xfer;
|
|
cp2 += xfer;
|
|
m2->m_len += xfer;
|
|
siz -= xfer;
|
|
left -= xfer;
|
|
if ((nd->nd_flag & ND_EXTPG) != 0) {
|
|
nd->nd_bextpgsiz -= xfer;
|
|
m2->m_epg_last_len += xfer;
|
|
}
|
|
if (siz == 0 && rem) {
|
|
if (left < rem)
|
|
panic("nfsm_strtom");
|
|
NFSBZERO(cp2, rem);
|
|
m2->m_len += rem;
|
|
cp2 += rem;
|
|
if ((nd->nd_flag & ND_EXTPG) != 0) {
|
|
nd->nd_bextpgsiz -= rem;
|
|
m2->m_epg_last_len += rem;
|
|
}
|
|
}
|
|
}
|
|
nd->nd_mb = m2;
|
|
if ((nd->nd_flag & ND_EXTPG) != 0)
|
|
nd->nd_bpos = cp2;
|
|
else
|
|
nd->nd_bpos = mtod(m2, char *) + m2->m_len;
|
|
return (bytesize);
|
|
}
|
|
|
|
/*
|
|
* Called once to initialize data structures...
|
|
*/
|
|
void
|
|
newnfs_init(void)
|
|
{
|
|
static int nfs_inited = 0;
|
|
|
|
if (nfs_inited)
|
|
return;
|
|
nfs_inited = 1;
|
|
|
|
newnfs_true = txdr_unsigned(TRUE);
|
|
newnfs_false = txdr_unsigned(FALSE);
|
|
newnfs_xdrneg1 = txdr_unsigned(-1);
|
|
nfscl_ticks = (hz * NFS_TICKINTVL + 500) / 1000;
|
|
if (nfscl_ticks < 1)
|
|
nfscl_ticks = 1;
|
|
NFSSETBOOTTIME(nfsboottime);
|
|
|
|
/*
|
|
* Initialize reply list and start timer
|
|
*/
|
|
TAILQ_INIT(&nfsd_reqq);
|
|
}
|
|
|
|
/*
|
|
* Put a file handle in an mbuf list.
|
|
* If the size argument == 0, just use the default size.
|
|
* set_true == 1 if there should be an newnfs_true prepended on the file handle.
|
|
* Return the number of bytes output, including XDR overhead.
|
|
*/
|
|
int
|
|
nfsm_fhtom(struct nfsmount *nmp, struct nfsrv_descript *nd, u_int8_t *fhp,
|
|
int size, int set_true)
|
|
{
|
|
u_int32_t *tl;
|
|
u_int8_t *cp;
|
|
int fullsiz, bytesize = 0;
|
|
|
|
KASSERT(nmp == NULL || nmp->nm_fhsize > 0,
|
|
("nfsm_fhtom: 0 length fh"));
|
|
if (size == 0)
|
|
size = NFSX_MYFH;
|
|
switch (nd->nd_flag & (ND_NFSV2 | ND_NFSV3 | ND_NFSV4)) {
|
|
case ND_NFSV2:
|
|
if (size > NFSX_V2FH)
|
|
panic("fh size > NFSX_V2FH for NFSv2");
|
|
NFSM_BUILD(cp, u_int8_t *, NFSX_V2FH);
|
|
NFSBCOPY(fhp, cp, size);
|
|
if (size < NFSX_V2FH)
|
|
NFSBZERO(cp + size, NFSX_V2FH - size);
|
|
bytesize = NFSX_V2FH;
|
|
break;
|
|
case ND_NFSV3:
|
|
case ND_NFSV4:
|
|
if (size == NFSX_FHMAX + 1 && nmp != NULL &&
|
|
(nmp->nm_privflag & NFSMNTP_FAKEROOTFH) != 0) {
|
|
fhp = nmp->nm_fh;
|
|
size = nmp->nm_fhsize;
|
|
}
|
|
fullsiz = NFSM_RNDUP(size);
|
|
if (set_true) {
|
|
bytesize = 2 * NFSX_UNSIGNED + fullsiz;
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_true;
|
|
} else {
|
|
bytesize = NFSX_UNSIGNED + fullsiz;
|
|
}
|
|
(void) nfsm_strtom(nd, fhp, size);
|
|
break;
|
|
}
|
|
return (bytesize);
|
|
}
|
|
|
|
/*
|
|
* This function compares two net addresses by family and returns TRUE
|
|
* if they are the same host.
|
|
* If there is any doubt, return FALSE.
|
|
* The AF_INET family is handled as a special case so that address mbufs
|
|
* don't need to be saved to store "struct in_addr", which is only 4 bytes.
|
|
*/
|
|
int
|
|
nfsaddr_match(int family, union nethostaddr *haddr, NFSSOCKADDR_T nam)
|
|
{
|
|
#ifdef INET
|
|
struct sockaddr_in *inetaddr;
|
|
#endif
|
|
|
|
switch (family) {
|
|
#ifdef INET
|
|
case AF_INET:
|
|
inetaddr = NFSSOCKADDR(nam, struct sockaddr_in *);
|
|
if (inetaddr->sin_family == AF_INET &&
|
|
inetaddr->sin_addr.s_addr == haddr->had_inet.s_addr)
|
|
return (1);
|
|
break;
|
|
#endif
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
{
|
|
struct sockaddr_in6 *inetaddr6;
|
|
|
|
inetaddr6 = NFSSOCKADDR(nam, struct sockaddr_in6 *);
|
|
/* XXX - should test sin6_scope_id ? */
|
|
if (inetaddr6->sin6_family == AF_INET6 &&
|
|
IN6_ARE_ADDR_EQUAL(&inetaddr6->sin6_addr,
|
|
&haddr->had_inet6))
|
|
return (1);
|
|
}
|
|
break;
|
|
#endif
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Similar to the above, but takes to NFSSOCKADDR_T args.
|
|
*/
|
|
int
|
|
nfsaddr2_match(NFSSOCKADDR_T nam1, NFSSOCKADDR_T nam2)
|
|
{
|
|
struct sockaddr_in *addr1, *addr2;
|
|
struct sockaddr *inaddr;
|
|
|
|
inaddr = NFSSOCKADDR(nam1, struct sockaddr *);
|
|
switch (inaddr->sa_family) {
|
|
case AF_INET:
|
|
addr1 = NFSSOCKADDR(nam1, struct sockaddr_in *);
|
|
addr2 = NFSSOCKADDR(nam2, struct sockaddr_in *);
|
|
if (addr2->sin_family == AF_INET &&
|
|
addr1->sin_addr.s_addr == addr2->sin_addr.s_addr)
|
|
return (1);
|
|
break;
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
{
|
|
struct sockaddr_in6 *inet6addr1, *inet6addr2;
|
|
|
|
inet6addr1 = NFSSOCKADDR(nam1, struct sockaddr_in6 *);
|
|
inet6addr2 = NFSSOCKADDR(nam2, struct sockaddr_in6 *);
|
|
/* XXX - should test sin6_scope_id ? */
|
|
if (inet6addr2->sin6_family == AF_INET6 &&
|
|
IN6_ARE_ADDR_EQUAL(&inet6addr1->sin6_addr,
|
|
&inet6addr2->sin6_addr))
|
|
return (1);
|
|
}
|
|
break;
|
|
#endif
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Dissect a file handle on the client.
|
|
*/
|
|
int
|
|
nfsm_getfh(struct nfsrv_descript *nd, struct nfsfh **nfhpp)
|
|
{
|
|
u_int32_t *tl;
|
|
struct nfsfh *nfhp;
|
|
int error, len;
|
|
|
|
*nfhpp = NULL;
|
|
if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) {
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if ((len = fxdr_unsigned(int, *tl)) <= 0 ||
|
|
len > NFSX_FHMAX) {
|
|
error = EBADRPC;
|
|
goto nfsmout;
|
|
}
|
|
} else
|
|
len = NFSX_V2FH;
|
|
nfhp = malloc(sizeof (struct nfsfh) + len,
|
|
M_NFSFH, M_WAITOK);
|
|
error = nfsrv_mtostr(nd, nfhp->nfh_fh, len);
|
|
if (error) {
|
|
free(nfhp, M_NFSFH);
|
|
goto nfsmout;
|
|
}
|
|
nfhp->nfh_len = len;
|
|
*nfhpp = nfhp;
|
|
nfsmout:
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Break down the nfsv4 acl.
|
|
* If the aclp == NULL or won't fit in an acl, just discard the acl info.
|
|
*/
|
|
int
|
|
nfsrv_dissectacl(struct nfsrv_descript *nd, NFSACL_T *aclp, bool server,
|
|
int *aclerrp, int *aclsizep, __unused NFSPROC_T *p)
|
|
{
|
|
u_int32_t *tl;
|
|
int i, aclsize;
|
|
int acecnt, error = 0, aceerr = 0, acesize;
|
|
|
|
*aclerrp = 0;
|
|
if (aclp)
|
|
aclp->acl_cnt = 0;
|
|
/*
|
|
* Parse out the ace entries and expect them to conform to
|
|
* what can be supported by R/W/X bits.
|
|
*/
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
aclsize = NFSX_UNSIGNED;
|
|
acecnt = fxdr_unsigned(int, *tl);
|
|
/*
|
|
* The RFCs do not define a fixed limit to the number of ACEs in
|
|
* an ACL, but 10240 should be more than sufficient.
|
|
*/
|
|
if (acecnt < 0 || acecnt > 10240) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
if (acecnt > ACL_MAX_ENTRIES)
|
|
aceerr = NFSERR_ATTRNOTSUPP;
|
|
if (nfsrv_useacl == 0)
|
|
aceerr = NFSERR_ATTRNOTSUPP;
|
|
for (i = 0; i < acecnt; i++) {
|
|
if (aclp && !aceerr)
|
|
error = nfsrv_dissectace(nd, &aclp->acl_entry[i],
|
|
server, &aceerr, &acesize, p);
|
|
else
|
|
error = nfsrv_skipace(nd, &acesize);
|
|
if (error)
|
|
goto nfsmout;
|
|
aclsize += acesize;
|
|
}
|
|
if (aclp && !aceerr)
|
|
aclp->acl_cnt = acecnt;
|
|
if (aceerr)
|
|
*aclerrp = aceerr;
|
|
if (aclsizep)
|
|
*aclsizep = aclsize;
|
|
nfsmout:
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Skip over an NFSv4 ace entry. Just dissect the xdr and discard it.
|
|
*/
|
|
static int
|
|
nfsrv_skipace(struct nfsrv_descript *nd, int *acesizep)
|
|
{
|
|
u_int32_t *tl;
|
|
int error, len = 0;
|
|
|
|
NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
|
|
len = fxdr_unsigned(int, *(tl + 3));
|
|
error = nfsm_advance(nd, NFSM_RNDUP(len), -1);
|
|
nfsmout:
|
|
*acesizep = NFSM_RNDUP(len) + (4 * NFSX_UNSIGNED);
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Get attribute bits from an mbuf list.
|
|
* Returns EBADRPC for a parsing error, 0 otherwise.
|
|
* If the clearinvalid flag is set, clear the bits not supported.
|
|
*/
|
|
int
|
|
nfsrv_getattrbits(struct nfsrv_descript *nd, nfsattrbit_t *attrbitp, int *cntp,
|
|
int *retnotsupp)
|
|
{
|
|
u_int32_t *tl;
|
|
int cnt, i, outcnt;
|
|
int error = 0;
|
|
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
cnt = fxdr_unsigned(int, *tl);
|
|
if (cnt < 0) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
if (cnt > NFSATTRBIT_MAXWORDS)
|
|
outcnt = NFSATTRBIT_MAXWORDS;
|
|
else
|
|
outcnt = cnt;
|
|
NFSZERO_ATTRBIT(attrbitp);
|
|
if (outcnt > 0) {
|
|
NFSM_DISSECT(tl, u_int32_t *, outcnt * NFSX_UNSIGNED);
|
|
for (i = 0; i < outcnt; i++)
|
|
attrbitp->bits[i] = fxdr_unsigned(u_int32_t, *tl++);
|
|
}
|
|
for (i = 0; i < (cnt - outcnt); i++) {
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (retnotsupp != NULL && *tl != 0)
|
|
*retnotsupp = NFSERR_ATTRNOTSUPP;
|
|
}
|
|
if (cntp)
|
|
*cntp = NFSX_UNSIGNED + (cnt * NFSX_UNSIGNED);
|
|
nfsmout:
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Get operation bits from an mbuf list.
|
|
* Returns EBADRPC for a parsing error, 0 otherwise.
|
|
*/
|
|
int
|
|
nfsrv_getopbits(struct nfsrv_descript *nd, nfsopbit_t *opbitp, int *cntp)
|
|
{
|
|
uint32_t *tl;
|
|
int cnt, i, outcnt;
|
|
int error = 0;
|
|
|
|
NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
|
|
cnt = fxdr_unsigned(int, *tl);
|
|
if (cnt < 0) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
if (cnt > NFSOPBIT_MAXWORDS)
|
|
outcnt = NFSOPBIT_MAXWORDS;
|
|
else
|
|
outcnt = cnt;
|
|
NFSZERO_OPBIT(opbitp);
|
|
if (outcnt > 0) {
|
|
NFSM_DISSECT(tl, uint32_t *, outcnt * NFSX_UNSIGNED);
|
|
for (i = 0; i < outcnt; i++)
|
|
opbitp->bits[i] = fxdr_unsigned(uint32_t, *tl++);
|
|
}
|
|
for (i = 0; i < (cnt - outcnt); i++) {
|
|
NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED);
|
|
if (*tl != 0) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
}
|
|
if (cntp != NULL)
|
|
*cntp = NFSX_UNSIGNED + (cnt * NFSX_UNSIGNED);
|
|
nfsmout:
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Get the attributes for V4.
|
|
* If the compare flag is true, test for any attribute changes,
|
|
* otherwise return the attribute values.
|
|
* These attributes cover fields in "struct vattr", "struct statfs",
|
|
* "struct nfsfsinfo", the file handle and the lease duration.
|
|
* The value of retcmpp is set to 1 if all attributes are the same,
|
|
* and 0 otherwise.
|
|
* Returns EBADRPC if it can't be parsed, 0 otherwise.
|
|
*/
|
|
int
|
|
nfsv4_loadattr(struct nfsrv_descript *nd, vnode_t vp,
|
|
struct nfsvattr *nap, struct nfsfh **nfhpp, fhandle_t *fhp, int fhsize,
|
|
struct nfsv3_pathconf *pc, struct statfs *sbp, struct nfsstatfs *sfp,
|
|
struct nfsfsinfo *fsp, NFSACL_T *aclp, int compare, int *retcmpp,
|
|
u_int32_t *leasep, u_int32_t *rderrp, NFSPROC_T *p, struct ucred *cred)
|
|
{
|
|
u_int32_t *tl;
|
|
int i = 0, j, k, l = 0, m, bitpos, attrsum = 0;
|
|
int error, tfhsize, aceerr, attrsize, cnt, retnotsup;
|
|
u_char *cp, *cp2, namestr[NFSV4_SMALLSTR + 1];
|
|
nfsattrbit_t attrbits, retattrbits, checkattrbits;
|
|
struct nfsfh *tnfhp;
|
|
struct nfsreferral *refp;
|
|
u_quad_t tquad;
|
|
nfsquad_t tnfsquad;
|
|
struct timespec temptime;
|
|
uid_t uid;
|
|
gid_t gid;
|
|
u_int32_t freenum = 0, tuint;
|
|
u_int64_t uquad = 0, thyp, thyp2;
|
|
#ifdef QUOTA
|
|
struct dqblk dqb;
|
|
uid_t savuid;
|
|
#endif
|
|
|
|
CTASSERT(sizeof(ino_t) == sizeof(uint64_t));
|
|
NFSD_CURVNET_SET_QUIET(NFSD_TD_TO_VNET(curthread));
|
|
if (compare) {
|
|
retnotsup = 0;
|
|
error = nfsrv_getattrbits(nd, &attrbits, NULL, &retnotsup);
|
|
} else {
|
|
error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL);
|
|
}
|
|
if (error)
|
|
goto nfsmout;
|
|
|
|
if (compare) {
|
|
*retcmpp = retnotsup;
|
|
} else {
|
|
/*
|
|
* Just set default values to some of the important ones.
|
|
*/
|
|
if (nap != NULL) {
|
|
nap->na_type = VREG;
|
|
nap->na_mode = 0;
|
|
nap->na_rdev = (NFSDEV_T)0;
|
|
nap->na_mtime.tv_sec = 0;
|
|
nap->na_mtime.tv_nsec = 0;
|
|
nap->na_btime.tv_sec = -1;
|
|
nap->na_btime.tv_nsec = 0;
|
|
nap->na_gen = 0;
|
|
nap->na_flags = 0;
|
|
nap->na_blocksize = NFS_FABLKSIZE;
|
|
}
|
|
if (sbp != NULL) {
|
|
sbp->f_bsize = NFS_FABLKSIZE;
|
|
sbp->f_blocks = 0;
|
|
sbp->f_bfree = 0;
|
|
sbp->f_bavail = 0;
|
|
sbp->f_files = 0;
|
|
sbp->f_ffree = 0;
|
|
}
|
|
if (fsp != NULL) {
|
|
fsp->fs_rtmax = 8192;
|
|
fsp->fs_rtpref = 8192;
|
|
fsp->fs_maxname = NFS_MAXNAMLEN;
|
|
fsp->fs_wtmax = 8192;
|
|
fsp->fs_wtpref = 8192;
|
|
fsp->fs_wtmult = NFS_FABLKSIZE;
|
|
fsp->fs_dtpref = 8192;
|
|
fsp->fs_maxfilesize = 0xffffffffffffffffull;
|
|
fsp->fs_timedelta.tv_sec = 0;
|
|
fsp->fs_timedelta.tv_nsec = 1;
|
|
fsp->fs_properties = (NFSV3_FSFLINK | NFSV3_FSFSYMLINK |
|
|
NFSV3_FSFHOMOGENEOUS | NFSV3_FSFCANSETTIME);
|
|
}
|
|
if (pc != NULL) {
|
|
pc->pc_linkmax = NFS_LINK_MAX;
|
|
pc->pc_namemax = NAME_MAX;
|
|
pc->pc_notrunc = 0;
|
|
pc->pc_chownrestricted = 0;
|
|
pc->pc_caseinsensitive = 0;
|
|
pc->pc_casepreserving = 1;
|
|
}
|
|
if (sfp != NULL) {
|
|
sfp->sf_ffiles = UINT64_MAX;
|
|
sfp->sf_tfiles = UINT64_MAX;
|
|
sfp->sf_afiles = UINT64_MAX;
|
|
sfp->sf_fbytes = UINT64_MAX;
|
|
sfp->sf_tbytes = UINT64_MAX;
|
|
sfp->sf_abytes = UINT64_MAX;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Loop around getting the attributes.
|
|
*/
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
attrsize = fxdr_unsigned(int, *tl);
|
|
for (bitpos = 0; bitpos < NFSATTRBIT_MAX; bitpos++) {
|
|
if (attrsum > attrsize) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
if (NFSISSET_ATTRBIT(&attrbits, bitpos))
|
|
switch (bitpos) {
|
|
case NFSATTRBIT_SUPPORTEDATTRS:
|
|
retnotsup = 0;
|
|
if (compare || nap == NULL)
|
|
error = nfsrv_getattrbits(nd, &retattrbits,
|
|
&cnt, &retnotsup);
|
|
else
|
|
error = nfsrv_getattrbits(nd, &nap->na_suppattr,
|
|
&cnt, &retnotsup);
|
|
if (error)
|
|
goto nfsmout;
|
|
if (compare && !(*retcmpp)) {
|
|
NFSSETSUPP_ATTRBIT(&checkattrbits, nd);
|
|
|
|
/* Some filesystem do not support NFSv4ACL */
|
|
if (nfsrv_useacl == 0 || nfs_supportsnfsv4acls(vp) == 0) {
|
|
NFSCLRBIT_ATTRBIT(&checkattrbits, NFSATTRBIT_ACL);
|
|
NFSCLRBIT_ATTRBIT(&checkattrbits, NFSATTRBIT_ACLSUPPORT);
|
|
}
|
|
if (!NFSEQUAL_ATTRBIT(&retattrbits, &checkattrbits)
|
|
|| retnotsup)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
attrsum += cnt;
|
|
break;
|
|
case NFSATTRBIT_TYPE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nap->na_type != nfsv34tov_type(*tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_type = nfsv34tov_type(*tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_FHEXPIRETYPE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare && !(*retcmpp)) {
|
|
if (fxdr_unsigned(int, *tl) !=
|
|
NFSV4FHTYPE_PERSISTENT)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CHANGE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nap->na_filerev != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_filerev = fxdr_hyper(tl);
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SIZE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nap->na_size != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_size = fxdr_hyper(tl);
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_LINKSUPPORT:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (fsp->fs_properties & NFSV3_FSFLINK) {
|
|
if (*tl == newnfs_false)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else {
|
|
if (*tl == newnfs_true)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
}
|
|
} else if (fsp != NULL) {
|
|
if (*tl == newnfs_true)
|
|
fsp->fs_properties |= NFSV3_FSFLINK;
|
|
else
|
|
fsp->fs_properties &= ~NFSV3_FSFLINK;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_SYMLINKSUPPORT:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (fsp->fs_properties & NFSV3_FSFSYMLINK) {
|
|
if (*tl == newnfs_false)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else {
|
|
if (*tl == newnfs_true)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
}
|
|
} else if (fsp != NULL) {
|
|
if (*tl == newnfs_true)
|
|
fsp->fs_properties |= NFSV3_FSFSYMLINK;
|
|
else
|
|
fsp->fs_properties &= ~NFSV3_FSFSYMLINK;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_NAMEDATTR:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare && !(*retcmpp)) {
|
|
if (*tl != newnfs_false)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_FSID:
|
|
NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
|
|
thyp = fxdr_hyper(tl);
|
|
tl += 2;
|
|
thyp2 = fxdr_hyper(tl);
|
|
if (compare) {
|
|
if (*retcmpp == 0) {
|
|
if (thyp != (u_int64_t)
|
|
vp->v_mount->mnt_stat.f_fsid.val[0] ||
|
|
thyp2 != (u_int64_t)
|
|
vp->v_mount->mnt_stat.f_fsid.val[1])
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_filesid[0] = thyp;
|
|
nap->na_filesid[1] = thyp2;
|
|
}
|
|
attrsum += (4 * NFSX_UNSIGNED);
|
|
break;
|
|
case NFSATTRBIT_UNIQUEHANDLES:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare && !(*retcmpp)) {
|
|
if (*tl != newnfs_true)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_LEASETIME:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (fxdr_unsigned(int, *tl) != nfsrv_lease &&
|
|
!(*retcmpp))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else if (leasep != NULL) {
|
|
*leasep = fxdr_unsigned(u_int32_t, *tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_RDATTRERROR:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp))
|
|
*retcmpp = NFSERR_INVAL;
|
|
} else if (rderrp != NULL) {
|
|
*rderrp = fxdr_unsigned(u_int32_t, *tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_ACL:
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nfsrv_useacl && nfs_supportsnfsv4acls(vp)) {
|
|
NFSACL_T *naclp;
|
|
|
|
naclp = acl_alloc(M_WAITOK);
|
|
error = nfsrv_dissectacl(nd, naclp, true,
|
|
&aceerr, &cnt, p);
|
|
if (error) {
|
|
acl_free(naclp);
|
|
goto nfsmout;
|
|
}
|
|
if (aceerr || aclp == NULL ||
|
|
nfsrv_compareacl(aclp, naclp))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
acl_free(naclp);
|
|
} else {
|
|
error = nfsrv_dissectacl(nd, NULL, true,
|
|
&aceerr, &cnt, p);
|
|
if (error)
|
|
goto nfsmout;
|
|
*retcmpp = NFSERR_ATTRNOTSUPP;
|
|
}
|
|
}
|
|
} else {
|
|
if (vp != NULL && aclp != NULL)
|
|
error = nfsrv_dissectacl(nd, aclp, false,
|
|
&aceerr, &cnt, p);
|
|
else
|
|
error = nfsrv_dissectacl(nd, NULL, false,
|
|
&aceerr, &cnt, p);
|
|
if (error)
|
|
goto nfsmout;
|
|
}
|
|
|
|
attrsum += cnt;
|
|
break;
|
|
case NFSATTRBIT_ACLSUPPORT:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare && !(*retcmpp)) {
|
|
if (nfsrv_useacl && nfs_supportsnfsv4acls(vp)) {
|
|
if (fxdr_unsigned(u_int32_t, *tl) !=
|
|
NFSV4ACE_SUPTYPES)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else {
|
|
*retcmpp = NFSERR_ATTRNOTSUPP;
|
|
}
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_ARCHIVE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare && !(*retcmpp))
|
|
*retcmpp = NFSERR_ATTRNOTSUPP;
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CANSETTIME:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (fsp->fs_properties & NFSV3_FSFCANSETTIME) {
|
|
if (*tl == newnfs_false)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else {
|
|
if (*tl == newnfs_true)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
}
|
|
} else if (fsp != NULL) {
|
|
if (*tl == newnfs_true)
|
|
fsp->fs_properties |= NFSV3_FSFCANSETTIME;
|
|
else
|
|
fsp->fs_properties &= ~NFSV3_FSFCANSETTIME;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CASEINSENSITIVE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (*tl != newnfs_false)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (pc != NULL) {
|
|
pc->pc_caseinsensitive =
|
|
fxdr_unsigned(u_int32_t, *tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CASEPRESERVING:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (*tl != newnfs_true)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (pc != NULL) {
|
|
pc->pc_casepreserving =
|
|
fxdr_unsigned(u_int32_t, *tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CHOWNRESTRICTED:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (*tl != newnfs_true)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (pc != NULL) {
|
|
pc->pc_chownrestricted =
|
|
fxdr_unsigned(u_int32_t, *tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_FILEHANDLE:
|
|
error = nfsm_getfh(nd, &tnfhp);
|
|
if (error)
|
|
goto nfsmout;
|
|
tfhsize = tnfhp->nfh_len;
|
|
if (compare) {
|
|
if (!(*retcmpp) &&
|
|
!NFSRV_CMPFH(tnfhp->nfh_fh, tfhsize,
|
|
fhp, fhsize))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
free(tnfhp, M_NFSFH);
|
|
} else if (nfhpp != NULL) {
|
|
*nfhpp = tnfhp;
|
|
} else {
|
|
free(tnfhp, M_NFSFH);
|
|
}
|
|
attrsum += (NFSX_UNSIGNED + NFSM_RNDUP(tfhsize));
|
|
break;
|
|
case NFSATTRBIT_FILEID:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
thyp = fxdr_hyper(tl);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nap->na_fileid != thyp)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL)
|
|
nap->na_fileid = thyp;
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_FILESAVAIL:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
uquad = nfsv4_filesavail(sbp, vp->v_mount);
|
|
if (!(*retcmpp) && uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else if (sfp != NULL) {
|
|
sfp->sf_afiles = fxdr_hyper(tl);
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_FILESFREE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
uquad = (uint64_t)sbp->f_ffree;
|
|
if (!(*retcmpp) && uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else if (sfp != NULL) {
|
|
sfp->sf_ffiles = fxdr_hyper(tl);
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_FILESTOTAL:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
uquad = sbp->f_files;
|
|
if (!(*retcmpp) && uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else if (sfp != NULL) {
|
|
sfp->sf_tfiles = fxdr_hyper(tl);
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_FSLOCATIONS:
|
|
error = nfsrv_getrefstr(nd, &cp, &cp2, &l, &m);
|
|
if (error)
|
|
goto nfsmout;
|
|
attrsum += l;
|
|
if (compare && !(*retcmpp)) {
|
|
refp = nfsv4root_getreferral(vp, NULL, 0);
|
|
if (refp != NULL) {
|
|
if (cp == NULL || cp2 == NULL ||
|
|
strcmp(cp, "/") ||
|
|
strcmp(cp2, refp->nfr_srvlist))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else if (m == 0) {
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
}
|
|
if (cp != NULL)
|
|
free(cp, M_NFSSTRING);
|
|
if (cp2 != NULL)
|
|
free(cp2, M_NFSSTRING);
|
|
break;
|
|
case NFSATTRBIT_HIDDEN:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare && !(*retcmpp))
|
|
*retcmpp = NFSERR_ATTRNOTSUPP;
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_HOMOGENEOUS:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (fsp->fs_properties &
|
|
NFSV3_FSFHOMOGENEOUS) {
|
|
if (*tl == newnfs_false)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else {
|
|
if (*tl == newnfs_true)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
}
|
|
} else if (fsp != NULL) {
|
|
if (*tl == newnfs_true)
|
|
fsp->fs_properties |= NFSV3_FSFHOMOGENEOUS;
|
|
else
|
|
fsp->fs_properties &= ~NFSV3_FSFHOMOGENEOUS;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_MAXFILESIZE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
tnfsquad.qval = fxdr_hyper(tl);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
tquad = NFSRV_MAXFILESIZE;
|
|
if (tquad != tnfsquad.qval)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (fsp != NULL) {
|
|
fsp->fs_maxfilesize = tnfsquad.qval;
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_MAXLINK:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (fxdr_unsigned(int, *tl) != NFS_LINK_MAX)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (pc != NULL) {
|
|
pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_MAXNAME:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (fsp->fs_maxname !=
|
|
fxdr_unsigned(u_int32_t, *tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else {
|
|
tuint = fxdr_unsigned(u_int32_t, *tl);
|
|
/*
|
|
* Some Linux NFSv4 servers report this
|
|
* as 0 or 4billion, so I'll set it to
|
|
* NFS_MAXNAMLEN. If a server actually creates
|
|
* a name longer than NFS_MAXNAMLEN, it will
|
|
* get an error back.
|
|
*/
|
|
if (tuint == 0 || tuint > NFS_MAXNAMLEN)
|
|
tuint = NFS_MAXNAMLEN;
|
|
if (fsp != NULL)
|
|
fsp->fs_maxname = tuint;
|
|
if (pc != NULL)
|
|
pc->pc_namemax = tuint;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_MAXREAD:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (fsp->fs_rtmax != fxdr_unsigned(u_int32_t,
|
|
*(tl + 1)) || *tl != 0)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (fsp != NULL) {
|
|
fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *++tl);
|
|
fsp->fs_rtpref = fsp->fs_rtmax;
|
|
fsp->fs_dtpref = fsp->fs_rtpref;
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_MAXWRITE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (fsp->fs_wtmax != fxdr_unsigned(u_int32_t,
|
|
*(tl + 1)) || *tl != 0)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (fsp != NULL) {
|
|
fsp->fs_wtmax = fxdr_unsigned(int, *++tl);
|
|
fsp->fs_wtpref = fsp->fs_wtmax;
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_MIMETYPE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
i = fxdr_unsigned(int, *tl);
|
|
attrsum += (NFSX_UNSIGNED + NFSM_RNDUP(i));
|
|
error = nfsm_advance(nd, NFSM_RNDUP(i), -1);
|
|
if (error)
|
|
goto nfsmout;
|
|
if (compare && !(*retcmpp))
|
|
*retcmpp = NFSERR_ATTRNOTSUPP;
|
|
break;
|
|
case NFSATTRBIT_MODE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nap->na_mode != nfstov_mode(*tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_mode = nfstov_mode(*tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_NOTRUNC:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (*tl != newnfs_true)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (pc != NULL) {
|
|
pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl);
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_NUMLINKS:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
tuint = fxdr_unsigned(u_int32_t, *tl);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if ((u_int32_t)nap->na_nlink != tuint)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_nlink = tuint;
|
|
}
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_OWNER:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
j = fxdr_unsigned(int, *tl);
|
|
if (j < 0 || j > NFSV4_MAXOWNERGROUPLEN) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
attrsum += (NFSX_UNSIGNED + NFSM_RNDUP(j));
|
|
if (j > NFSV4_SMALLSTR)
|
|
cp = malloc(j + 1, M_NFSSTRING, M_WAITOK);
|
|
else
|
|
cp = namestr;
|
|
error = nfsrv_mtostr(nd, cp, j);
|
|
if (error) {
|
|
if (j > NFSV4_SMALLSTR)
|
|
free(cp, M_NFSSTRING);
|
|
goto nfsmout;
|
|
}
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nfsv4_strtouid(nd, cp, j, &uid) ||
|
|
nap->na_uid != uid)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
if (nfsv4_strtouid(nd, cp, j, &uid))
|
|
nap->na_uid =
|
|
NFSD_VNET(nfsrv_defaultuid);
|
|
else
|
|
nap->na_uid = uid;
|
|
}
|
|
if (j > NFSV4_SMALLSTR)
|
|
free(cp, M_NFSSTRING);
|
|
break;
|
|
case NFSATTRBIT_OWNERGROUP:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
j = fxdr_unsigned(int, *tl);
|
|
if (j < 0 || j > NFSV4_MAXOWNERGROUPLEN) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
attrsum += (NFSX_UNSIGNED + NFSM_RNDUP(j));
|
|
if (j > NFSV4_SMALLSTR)
|
|
cp = malloc(j + 1, M_NFSSTRING, M_WAITOK);
|
|
else
|
|
cp = namestr;
|
|
error = nfsrv_mtostr(nd, cp, j);
|
|
if (error) {
|
|
if (j > NFSV4_SMALLSTR)
|
|
free(cp, M_NFSSTRING);
|
|
goto nfsmout;
|
|
}
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nfsv4_strtogid(nd, cp, j, &gid) ||
|
|
nap->na_gid != gid)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
if (nfsv4_strtogid(nd, cp, j, &gid))
|
|
nap->na_gid =
|
|
NFSD_VNET(nfsrv_defaultgid);
|
|
else
|
|
nap->na_gid = gid;
|
|
}
|
|
if (j > NFSV4_SMALLSTR)
|
|
free(cp, M_NFSSTRING);
|
|
break;
|
|
case NFSATTRBIT_QUOTAHARD:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (sbp != NULL) {
|
|
if (priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA))
|
|
freenum = sbp->f_bfree;
|
|
else
|
|
freenum = sbp->f_bavail;
|
|
#ifdef QUOTA
|
|
/*
|
|
* ufs_quotactl() insists that the uid argument
|
|
* equal p_ruid for non-root quota access, so
|
|
* we'll just make sure that's the case.
|
|
*/
|
|
savuid = p->p_cred->p_ruid;
|
|
p->p_cred->p_ruid = cred->cr_uid;
|
|
if (!VFS_QUOTACTL(vp->v_mount,QCMD(Q_GETQUOTA,
|
|
USRQUOTA), cred->cr_uid, &dqb))
|
|
freenum = min(dqb.dqb_bhardlimit, freenum);
|
|
p->p_cred->p_ruid = savuid;
|
|
#endif /* QUOTA */
|
|
uquad = (u_int64_t)freenum;
|
|
NFSQUOTABLKTOBYTE(uquad, sbp->f_bsize);
|
|
}
|
|
if (compare && !(*retcmpp)) {
|
|
if (uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_QUOTASOFT:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (sbp != NULL) {
|
|
if (priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA))
|
|
freenum = sbp->f_bfree;
|
|
else
|
|
freenum = sbp->f_bavail;
|
|
#ifdef QUOTA
|
|
/*
|
|
* ufs_quotactl() insists that the uid argument
|
|
* equal p_ruid for non-root quota access, so
|
|
* we'll just make sure that's the case.
|
|
*/
|
|
savuid = p->p_cred->p_ruid;
|
|
p->p_cred->p_ruid = cred->cr_uid;
|
|
if (!VFS_QUOTACTL(vp->v_mount,QCMD(Q_GETQUOTA,
|
|
USRQUOTA), cred->cr_uid, &dqb))
|
|
freenum = min(dqb.dqb_bsoftlimit, freenum);
|
|
p->p_cred->p_ruid = savuid;
|
|
#endif /* QUOTA */
|
|
uquad = (u_int64_t)freenum;
|
|
NFSQUOTABLKTOBYTE(uquad, sbp->f_bsize);
|
|
}
|
|
if (compare && !(*retcmpp)) {
|
|
if (uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_QUOTAUSED:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (sbp != NULL) {
|
|
freenum = 0;
|
|
#ifdef QUOTA
|
|
/*
|
|
* ufs_quotactl() insists that the uid argument
|
|
* equal p_ruid for non-root quota access, so
|
|
* we'll just make sure that's the case.
|
|
*/
|
|
savuid = p->p_cred->p_ruid;
|
|
p->p_cred->p_ruid = cred->cr_uid;
|
|
if (!VFS_QUOTACTL(vp->v_mount,QCMD(Q_GETQUOTA,
|
|
USRQUOTA), cred->cr_uid, &dqb))
|
|
freenum = dqb.dqb_curblocks;
|
|
p->p_cred->p_ruid = savuid;
|
|
#endif /* QUOTA */
|
|
uquad = (u_int64_t)freenum;
|
|
NFSQUOTABLKTOBYTE(uquad, sbp->f_bsize);
|
|
}
|
|
if (compare && !(*retcmpp)) {
|
|
if (uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_RAWDEV:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4SPECDATA);
|
|
j = fxdr_unsigned(int, *tl++);
|
|
k = fxdr_unsigned(int, *tl);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (nap->na_rdev != NFSMAKEDEV(j, k))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_rdev = NFSMAKEDEV(j, k);
|
|
}
|
|
attrsum += NFSX_V4SPECDATA;
|
|
break;
|
|
case NFSATTRBIT_SPACEAVAIL:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
if (priv_check_cred(cred,
|
|
PRIV_VFS_BLOCKRESERVE))
|
|
uquad = sbp->f_bfree;
|
|
else
|
|
uquad = (uint64_t)sbp->f_bavail;
|
|
uquad *= sbp->f_bsize;
|
|
if (!(*retcmpp) && uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else if (sfp != NULL) {
|
|
sfp->sf_abytes = fxdr_hyper(tl);
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SPACEFREE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
uquad = sbp->f_bfree;
|
|
uquad *= sbp->f_bsize;
|
|
if (!(*retcmpp) && uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else if (sfp != NULL) {
|
|
sfp->sf_fbytes = fxdr_hyper(tl);
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SPACETOTAL:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
if (compare) {
|
|
uquad = sbp->f_blocks;
|
|
uquad *= sbp->f_bsize;
|
|
if (!(*retcmpp) && uquad != fxdr_hyper(tl))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else if (sfp != NULL) {
|
|
sfp->sf_tbytes = fxdr_hyper(tl);
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SPACEUSED:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
thyp = fxdr_hyper(tl);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if ((u_int64_t)nap->na_bytes != thyp)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_bytes = thyp;
|
|
}
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SYSTEM:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (compare && !(*retcmpp))
|
|
*retcmpp = NFSERR_ATTRNOTSUPP;
|
|
attrsum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_TIMEACCESS:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
|
|
fxdr_nfsv4time(tl, &temptime);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (!NFS_CMPTIME(temptime, nap->na_atime))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_atime = temptime;
|
|
}
|
|
attrsum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEACCESSSET:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
attrsum += NFSX_UNSIGNED;
|
|
i = fxdr_unsigned(int, *tl);
|
|
if (i == NFSV4SATTRTIME_TOCLIENT) {
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
|
|
attrsum += NFSX_V4TIME;
|
|
}
|
|
if (compare && !(*retcmpp))
|
|
*retcmpp = NFSERR_INVAL;
|
|
break;
|
|
case NFSATTRBIT_TIMEBACKUP:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
|
|
if (compare && !(*retcmpp))
|
|
*retcmpp = NFSERR_ATTRNOTSUPP;
|
|
attrsum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMECREATE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
|
|
fxdr_nfsv4time(tl, &temptime);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (!NFS_CMPTIME(temptime, nap->na_btime))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_btime = temptime;
|
|
}
|
|
attrsum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEDELTA:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
|
|
if (fsp != NULL) {
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if ((u_int32_t)fsp->fs_timedelta.tv_sec !=
|
|
fxdr_unsigned(u_int32_t, *(tl + 1)) ||
|
|
(u_int32_t)fsp->fs_timedelta.tv_nsec !=
|
|
(fxdr_unsigned(u_int32_t, *(tl + 2)) %
|
|
1000000000) ||
|
|
*tl != 0)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else {
|
|
fxdr_nfsv4time(tl, &fsp->fs_timedelta);
|
|
}
|
|
}
|
|
attrsum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEMETADATA:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
|
|
fxdr_nfsv4time(tl, &temptime);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (!NFS_CMPTIME(temptime, nap->na_ctime))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_ctime = temptime;
|
|
}
|
|
attrsum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEMODIFY:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
|
|
fxdr_nfsv4time(tl, &temptime);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (!NFS_CMPTIME(temptime, nap->na_mtime))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL) {
|
|
nap->na_mtime = temptime;
|
|
}
|
|
attrsum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEMODIFYSET:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
attrsum += NFSX_UNSIGNED;
|
|
i = fxdr_unsigned(int, *tl);
|
|
if (i == NFSV4SATTRTIME_TOCLIENT) {
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_V4TIME);
|
|
attrsum += NFSX_V4TIME;
|
|
}
|
|
if (compare && !(*retcmpp))
|
|
*retcmpp = NFSERR_INVAL;
|
|
break;
|
|
case NFSATTRBIT_MOUNTEDONFILEID:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER);
|
|
thyp = fxdr_hyper(tl);
|
|
if (compare) {
|
|
if (!(*retcmpp)) {
|
|
if (!vp || !nfsrv_atroot(vp, &thyp2))
|
|
thyp2 = nap->na_fileid;
|
|
if (thyp2 != thyp)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
} else if (nap != NULL)
|
|
nap->na_mntonfileno = thyp;
|
|
attrsum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SUPPATTREXCLCREAT:
|
|
retnotsup = 0;
|
|
error = nfsrv_getattrbits(nd, &retattrbits,
|
|
&cnt, &retnotsup);
|
|
if (error)
|
|
goto nfsmout;
|
|
if (compare && !(*retcmpp)) {
|
|
NFSSETSUPP_ATTRBIT(&checkattrbits, nd);
|
|
NFSCLRNOTSETABLE_ATTRBIT(&checkattrbits, nd);
|
|
NFSCLRBIT_ATTRBIT(&checkattrbits,
|
|
NFSATTRBIT_TIMEACCESSSET);
|
|
if (!NFSEQUAL_ATTRBIT(&retattrbits, &checkattrbits)
|
|
|| retnotsup)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
attrsum += cnt;
|
|
break;
|
|
case NFSATTRBIT_FSLAYOUTTYPE:
|
|
case NFSATTRBIT_LAYOUTTYPE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
attrsum += NFSX_UNSIGNED;
|
|
i = fxdr_unsigned(int, *tl);
|
|
/*
|
|
* The RFCs do not define an upper limit for the
|
|
* number of layout types, but 32 should be more
|
|
* than enough.
|
|
*/
|
|
if (i < 0 || i > 32) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
if (i > 0) {
|
|
NFSM_DISSECT(tl, u_int32_t *, i *
|
|
NFSX_UNSIGNED);
|
|
attrsum += i * NFSX_UNSIGNED;
|
|
j = fxdr_unsigned(int, *tl);
|
|
if (i == 1 && compare && !(*retcmpp) &&
|
|
(((nfsrv_doflexfile != 0 ||
|
|
nfsrv_maxpnfsmirror > 1) &&
|
|
j != NFSLAYOUT_FLEXFILE) ||
|
|
(nfsrv_doflexfile == 0 &&
|
|
j != NFSLAYOUT_NFSV4_1_FILES)))
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
if (nfsrv_devidcnt == 0) {
|
|
if (compare && !(*retcmpp) && i > 0)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
} else {
|
|
if (compare && !(*retcmpp) && i != 1)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
}
|
|
break;
|
|
case NFSATTRBIT_LAYOUTALIGNMENT:
|
|
case NFSATTRBIT_LAYOUTBLKSIZE:
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
attrsum += NFSX_UNSIGNED;
|
|
i = fxdr_unsigned(int, *tl);
|
|
if (compare && !(*retcmpp) && i != nfs_srvmaxio)
|
|
*retcmpp = NFSERR_NOTSAME;
|
|
break;
|
|
default:
|
|
printf("EEK! nfsv4_loadattr unknown attr=%d\n",
|
|
bitpos);
|
|
if (compare && !(*retcmpp))
|
|
*retcmpp = NFSERR_ATTRNOTSUPP;
|
|
/*
|
|
* and get out of the loop, since we can't parse
|
|
* the unknown attribute data.
|
|
*/
|
|
bitpos = NFSATTRBIT_MAX;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* some clients pad the attrlist, so we need to skip over the
|
|
* padding.
|
|
*/
|
|
if (attrsum > attrsize) {
|
|
error = NFSERR_BADXDR;
|
|
} else {
|
|
attrsize = NFSM_RNDUP(attrsize);
|
|
if (attrsum < attrsize)
|
|
error = nfsm_advance(nd, attrsize - attrsum, -1);
|
|
}
|
|
nfsmout:
|
|
NFSD_CURVNET_RESTORE();
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Implement sleep locks for newnfs. The nfslock_usecnt allows for a
|
|
* shared lock and the NFSXXX_LOCK flag permits an exclusive lock.
|
|
* The first argument is a pointer to an nfsv4lock structure.
|
|
* The second argument is 1 iff a blocking lock is wanted.
|
|
* If this argument is 0, the call waits until no thread either wants nor
|
|
* holds an exclusive lock.
|
|
* It returns 1 if the lock was acquired, 0 otherwise.
|
|
* If several processes call this function concurrently wanting the exclusive
|
|
* lock, one will get the lock and the rest will return without getting the
|
|
* lock. (If the caller must have the lock, it simply calls this function in a
|
|
* loop until the function returns 1 to indicate the lock was acquired.)
|
|
* Any usecnt must be decremented by calling nfsv4_relref() before
|
|
* calling nfsv4_lock(). It was done this way, so nfsv4_lock() could
|
|
* be called in a loop.
|
|
* The isleptp argument is set to indicate if the call slept, iff not NULL
|
|
* and the mp argument indicates to check for a forced dismount, iff not
|
|
* NULL.
|
|
*/
|
|
int
|
|
nfsv4_lock(struct nfsv4lock *lp, int iwantlock, int *isleptp,
|
|
struct mtx *mutex, struct mount *mp)
|
|
{
|
|
|
|
if (isleptp)
|
|
*isleptp = 0;
|
|
/*
|
|
* If a lock is wanted, loop around until the lock is acquired by
|
|
* someone and then released. If I want the lock, try to acquire it.
|
|
* For a lock to be issued, no lock must be in force and the usecnt
|
|
* must be zero.
|
|
*/
|
|
if (iwantlock) {
|
|
if (!(lp->nfslock_lock & NFSV4LOCK_LOCK) &&
|
|
lp->nfslock_usecnt == 0) {
|
|
lp->nfslock_lock &= ~NFSV4LOCK_LOCKWANTED;
|
|
lp->nfslock_lock |= NFSV4LOCK_LOCK;
|
|
return (1);
|
|
}
|
|
lp->nfslock_lock |= NFSV4LOCK_LOCKWANTED;
|
|
}
|
|
while (lp->nfslock_lock & (NFSV4LOCK_LOCK | NFSV4LOCK_LOCKWANTED)) {
|
|
if (mp != NULL && NFSCL_FORCEDISM(mp)) {
|
|
lp->nfslock_lock &= ~NFSV4LOCK_LOCKWANTED;
|
|
return (0);
|
|
}
|
|
lp->nfslock_lock |= NFSV4LOCK_WANTED;
|
|
if (isleptp)
|
|
*isleptp = 1;
|
|
msleep(&lp->nfslock_lock, mutex, PVFS, "nfsv4lck", hz);
|
|
if (iwantlock && !(lp->nfslock_lock & NFSV4LOCK_LOCK) &&
|
|
lp->nfslock_usecnt == 0) {
|
|
lp->nfslock_lock &= ~NFSV4LOCK_LOCKWANTED;
|
|
lp->nfslock_lock |= NFSV4LOCK_LOCK;
|
|
return (1);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Release the lock acquired by nfsv4_lock().
|
|
* The second argument is set to 1 to indicate the nfslock_usecnt should be
|
|
* incremented, as well.
|
|
*/
|
|
void
|
|
nfsv4_unlock(struct nfsv4lock *lp, int incref)
|
|
{
|
|
|
|
lp->nfslock_lock &= ~NFSV4LOCK_LOCK;
|
|
if (incref)
|
|
lp->nfslock_usecnt++;
|
|
nfsv4_wanted(lp);
|
|
}
|
|
|
|
/*
|
|
* Release a reference cnt.
|
|
*/
|
|
void
|
|
nfsv4_relref(struct nfsv4lock *lp)
|
|
{
|
|
|
|
if (lp->nfslock_usecnt <= 0)
|
|
panic("nfsv4root ref cnt");
|
|
lp->nfslock_usecnt--;
|
|
if (lp->nfslock_usecnt == 0)
|
|
nfsv4_wanted(lp);
|
|
}
|
|
|
|
/*
|
|
* Get a reference cnt.
|
|
* This function will wait for any exclusive lock to be released, but will
|
|
* not wait for threads that want the exclusive lock. If priority needs
|
|
* to be given to threads that need the exclusive lock, a call to nfsv4_lock()
|
|
* with the 2nd argument == 0 should be done before calling nfsv4_getref().
|
|
* If the mp argument is not NULL, check for NFSCL_FORCEDISM() being set and
|
|
* return without getting a refcnt for that case.
|
|
*/
|
|
void
|
|
nfsv4_getref(struct nfsv4lock *lp, int *isleptp, struct mtx *mutex,
|
|
struct mount *mp)
|
|
{
|
|
|
|
if (isleptp)
|
|
*isleptp = 0;
|
|
|
|
/*
|
|
* Wait for a lock held.
|
|
*/
|
|
while (lp->nfslock_lock & NFSV4LOCK_LOCK) {
|
|
if (mp != NULL && NFSCL_FORCEDISM(mp))
|
|
return;
|
|
lp->nfslock_lock |= NFSV4LOCK_WANTED;
|
|
if (isleptp)
|
|
*isleptp = 1;
|
|
msleep(&lp->nfslock_lock, mutex, PVFS, "nfsv4gr", hz);
|
|
}
|
|
if (mp != NULL && NFSCL_FORCEDISM(mp))
|
|
return;
|
|
|
|
lp->nfslock_usecnt++;
|
|
}
|
|
|
|
/*
|
|
* Get a reference as above, but return failure instead of sleeping if
|
|
* an exclusive lock is held.
|
|
*/
|
|
int
|
|
nfsv4_getref_nonblock(struct nfsv4lock *lp)
|
|
{
|
|
|
|
if ((lp->nfslock_lock & NFSV4LOCK_LOCK) != 0)
|
|
return (0);
|
|
|
|
lp->nfslock_usecnt++;
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Test for a lock. Return 1 if locked, 0 otherwise.
|
|
*/
|
|
int
|
|
nfsv4_testlock(struct nfsv4lock *lp)
|
|
{
|
|
|
|
if ((lp->nfslock_lock & NFSV4LOCK_LOCK) == 0 &&
|
|
lp->nfslock_usecnt == 0)
|
|
return (0);
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Wake up anyone sleeping, waiting for this lock.
|
|
*/
|
|
static void
|
|
nfsv4_wanted(struct nfsv4lock *lp)
|
|
{
|
|
|
|
if (lp->nfslock_lock & NFSV4LOCK_WANTED) {
|
|
lp->nfslock_lock &= ~NFSV4LOCK_WANTED;
|
|
wakeup((caddr_t)&lp->nfslock_lock);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Copy a string from an mbuf list into a character array.
|
|
* Return EBADRPC if there is an mbuf error,
|
|
* 0 otherwise.
|
|
*/
|
|
int
|
|
nfsrv_mtostr(struct nfsrv_descript *nd, char *str, int siz)
|
|
{
|
|
char *cp;
|
|
int xfer, len;
|
|
struct mbuf *mp;
|
|
int rem, error = 0;
|
|
|
|
mp = nd->nd_md;
|
|
cp = nd->nd_dpos;
|
|
len = mtod(mp, caddr_t) + mp->m_len - cp;
|
|
rem = NFSM_RNDUP(siz) - siz;
|
|
while (siz > 0) {
|
|
if (len > siz)
|
|
xfer = siz;
|
|
else
|
|
xfer = len;
|
|
NFSBCOPY(cp, str, xfer);
|
|
str += xfer;
|
|
siz -= xfer;
|
|
if (siz > 0) {
|
|
mp = mp->m_next;
|
|
if (mp == NULL) {
|
|
error = EBADRPC;
|
|
goto out;
|
|
}
|
|
cp = mtod(mp, caddr_t);
|
|
len = mp->m_len;
|
|
} else {
|
|
cp += xfer;
|
|
len -= xfer;
|
|
}
|
|
}
|
|
*str = '\0';
|
|
nd->nd_dpos = cp;
|
|
nd->nd_md = mp;
|
|
if (rem > 0) {
|
|
if (len < rem)
|
|
error = nfsm_advance(nd, rem, len);
|
|
else
|
|
nd->nd_dpos += rem;
|
|
}
|
|
|
|
out:
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Fill in the attributes as marked by the bitmap (V4).
|
|
*/
|
|
int
|
|
nfsv4_fillattr(struct nfsrv_descript *nd, struct mount *mp, vnode_t vp,
|
|
NFSACL_T *saclp, struct vattr *vap, fhandle_t *fhp, int rderror,
|
|
nfsattrbit_t *attrbitp, struct ucred *cred, NFSPROC_T *p, int isdgram,
|
|
int reterr, int supports_nfsv4acls, int at_root, uint64_t mounted_on_fileno,
|
|
struct statfs *pnfssf)
|
|
{
|
|
int bitpos, retnum = 0;
|
|
u_int32_t *tl;
|
|
int siz, prefixnum, error;
|
|
u_char *cp, namestr[NFSV4_SMALLSTR];
|
|
nfsattrbit_t attrbits, retbits;
|
|
nfsattrbit_t *retbitp = &retbits;
|
|
u_int32_t freenum, *retnump;
|
|
u_int64_t uquad;
|
|
struct statfs *fs;
|
|
struct nfsfsinfo fsinf;
|
|
struct timespec temptime;
|
|
NFSACL_T *aclp, *naclp = NULL;
|
|
size_t atsiz;
|
|
bool xattrsupp;
|
|
#ifdef QUOTA
|
|
struct dqblk dqb;
|
|
uid_t savuid;
|
|
#endif
|
|
|
|
/*
|
|
* First, set the bits that can be filled and get fsinfo.
|
|
*/
|
|
NFSSET_ATTRBIT(retbitp, attrbitp);
|
|
/*
|
|
* If both p and cred are NULL, it is a client side setattr call.
|
|
* If both p and cred are not NULL, it is a server side reply call.
|
|
* If p is not NULL and cred is NULL, it is a client side callback
|
|
* reply call.
|
|
*/
|
|
if (p == NULL && cred == NULL) {
|
|
NFSCLRNOTSETABLE_ATTRBIT(retbitp, nd);
|
|
aclp = saclp;
|
|
} else {
|
|
NFSCLRNOTFILLABLE_ATTRBIT(retbitp, nd);
|
|
naclp = acl_alloc(M_WAITOK);
|
|
aclp = naclp;
|
|
}
|
|
nfsvno_getfs(&fsinf, isdgram);
|
|
/*
|
|
* Get the VFS_STATFS(), since some attributes need them.
|
|
*/
|
|
fs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
|
|
if (NFSISSETSTATFS_ATTRBIT(retbitp)) {
|
|
error = VFS_STATFS(mp, fs);
|
|
if (error != 0) {
|
|
if (reterr) {
|
|
nd->nd_repstat = NFSERR_ACCES;
|
|
free(fs, M_STATFS);
|
|
return (0);
|
|
}
|
|
NFSCLRSTATFS_ATTRBIT(retbitp);
|
|
}
|
|
/*
|
|
* Since NFS handles these values as unsigned on the
|
|
* wire, there is no way to represent negative values,
|
|
* so set them to 0. Without this, they will appear
|
|
* to be very large positive values for clients like
|
|
* Solaris10.
|
|
*/
|
|
if (fs->f_bavail < 0)
|
|
fs->f_bavail = 0;
|
|
if (fs->f_ffree < 0)
|
|
fs->f_ffree = 0;
|
|
}
|
|
|
|
/*
|
|
* And the NFSv4 ACL...
|
|
*/
|
|
if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_ACLSUPPORT) &&
|
|
(nfsrv_useacl == 0 || ((cred != NULL || p != NULL) &&
|
|
supports_nfsv4acls == 0))) {
|
|
NFSCLRBIT_ATTRBIT(retbitp, NFSATTRBIT_ACLSUPPORT);
|
|
}
|
|
if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_ACL)) {
|
|
if (nfsrv_useacl == 0 || ((cred != NULL || p != NULL) &&
|
|
supports_nfsv4acls == 0)) {
|
|
NFSCLRBIT_ATTRBIT(retbitp, NFSATTRBIT_ACL);
|
|
} else if (naclp != NULL) {
|
|
if (NFSVOPLOCK(vp, LK_SHARED) == 0) {
|
|
error = VOP_ACCESSX(vp, VREAD_ACL, cred, p);
|
|
if (error == 0)
|
|
error = VOP_GETACL(vp, ACL_TYPE_NFS4,
|
|
naclp, cred, p);
|
|
NFSVOPUNLOCK(vp);
|
|
} else
|
|
error = NFSERR_PERM;
|
|
if (error != 0) {
|
|
if (reterr) {
|
|
nd->nd_repstat = NFSERR_ACCES;
|
|
free(fs, M_STATFS);
|
|
return (0);
|
|
}
|
|
NFSCLRBIT_ATTRBIT(retbitp, NFSATTRBIT_ACL);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Check to see if Extended Attributes are supported. */
|
|
xattrsupp = false;
|
|
if (NFSISSET_ATTRBIT(retbitp, NFSATTRBIT_XATTRSUPPORT)) {
|
|
if (NFSVOPLOCK(vp, LK_SHARED) == 0) {
|
|
error = VOP_GETEXTATTR(vp, EXTATTR_NAMESPACE_USER,
|
|
"xxx", NULL, &atsiz, cred, p);
|
|
NFSVOPUNLOCK(vp);
|
|
if (error != EOPNOTSUPP)
|
|
xattrsupp = true;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Put out the attribute bitmap for the ones being filled in
|
|
* and get the field for the number of attributes returned.
|
|
*/
|
|
prefixnum = nfsrv_putattrbit(nd, retbitp);
|
|
NFSM_BUILD(retnump, u_int32_t *, NFSX_UNSIGNED);
|
|
prefixnum += NFSX_UNSIGNED;
|
|
|
|
/*
|
|
* Now, loop around filling in the attributes for each bit set.
|
|
*/
|
|
for (bitpos = 0; bitpos < NFSATTRBIT_MAX; bitpos++) {
|
|
if (NFSISSET_ATTRBIT(retbitp, bitpos)) {
|
|
switch (bitpos) {
|
|
case NFSATTRBIT_SUPPORTEDATTRS:
|
|
NFSSETSUPP_ATTRBIT(&attrbits, nd);
|
|
if (nfsrv_useacl == 0 || ((cred != NULL || p != NULL)
|
|
&& supports_nfsv4acls == 0)) {
|
|
NFSCLRBIT_ATTRBIT(&attrbits,NFSATTRBIT_ACLSUPPORT);
|
|
NFSCLRBIT_ATTRBIT(&attrbits,NFSATTRBIT_ACL);
|
|
}
|
|
retnum += nfsrv_putattrbit(nd, &attrbits);
|
|
break;
|
|
case NFSATTRBIT_TYPE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = vtonfsv34_type(vap->va_type);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_FHEXPIRETYPE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV4FHTYPE_PERSISTENT);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CHANGE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
txdr_hyper(vap->va_filerev, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SIZE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
txdr_hyper(vap->va_size, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_LINKSUPPORT:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (fsinf.fs_properties & NFSV3FSINFO_LINK)
|
|
*tl = newnfs_true;
|
|
else
|
|
*tl = newnfs_false;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_SYMLINKSUPPORT:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (fsinf.fs_properties & NFSV3FSINFO_SYMLINK)
|
|
*tl = newnfs_true;
|
|
else
|
|
*tl = newnfs_false;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_NAMEDATTR:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_false;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_FSID:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4FSID);
|
|
*tl++ = 0;
|
|
*tl++ = txdr_unsigned(mp->mnt_stat.f_fsid.val[0]);
|
|
*tl++ = 0;
|
|
*tl = txdr_unsigned(mp->mnt_stat.f_fsid.val[1]);
|
|
retnum += NFSX_V4FSID;
|
|
break;
|
|
case NFSATTRBIT_UNIQUEHANDLES:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_true;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_LEASETIME:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(nfsrv_lease);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_RDATTRERROR:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(rderror);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
/*
|
|
* Recommended Attributes. (Only the supported ones.)
|
|
*/
|
|
case NFSATTRBIT_ACL:
|
|
retnum += nfsrv_buildacl(nd, aclp, vp->v_type, p);
|
|
break;
|
|
case NFSATTRBIT_ACLSUPPORT:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV4ACE_SUPTYPES);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CANSETTIME:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (fsinf.fs_properties & NFSV3FSINFO_CANSETTIME)
|
|
*tl = newnfs_true;
|
|
else
|
|
*tl = newnfs_false;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CASEINSENSITIVE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_false;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CASEPRESERVING:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_true;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_CHOWNRESTRICTED:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_true;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_FILEHANDLE:
|
|
retnum += nfsm_fhtom(NULL, nd, (u_int8_t *)fhp, 0, 0);
|
|
break;
|
|
case NFSATTRBIT_FILEID:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
uquad = vap->va_fileid;
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_FILESAVAIL:
|
|
freenum = nfsv4_filesavail(fs, mp);
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
*tl++ = 0;
|
|
*tl = txdr_unsigned(freenum);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_FILESFREE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
*tl++ = 0;
|
|
*tl = txdr_unsigned(fs->f_ffree);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_FILESTOTAL:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
*tl++ = 0;
|
|
*tl = txdr_unsigned(fs->f_files);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_FSLOCATIONS:
|
|
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
|
|
*tl++ = 0;
|
|
*tl = 0;
|
|
retnum += 2 * NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_HOMOGENEOUS:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (fsinf.fs_properties & NFSV3FSINFO_HOMOGENEOUS)
|
|
*tl = newnfs_true;
|
|
else
|
|
*tl = newnfs_false;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_MAXFILESIZE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
uquad = NFSRV_MAXFILESIZE;
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_MAXLINK:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFS_LINK_MAX);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_MAXNAME:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFS_MAXNAMLEN);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_MAXREAD:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
*tl++ = 0;
|
|
*tl = txdr_unsigned(fsinf.fs_rtmax);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_MAXWRITE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
*tl++ = 0;
|
|
*tl = txdr_unsigned(fsinf.fs_wtmax);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_MODE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = vtonfsv34_mode(vap->va_mode);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_NOTRUNC:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = newnfs_true;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_NUMLINKS:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(vap->va_nlink);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_OWNER:
|
|
cp = namestr;
|
|
nfsv4_uidtostr(vap->va_uid, &cp, &siz);
|
|
retnum += nfsm_strtom(nd, cp, siz);
|
|
if (cp != namestr)
|
|
free(cp, M_NFSSTRING);
|
|
break;
|
|
case NFSATTRBIT_OWNERGROUP:
|
|
cp = namestr;
|
|
nfsv4_gidtostr(vap->va_gid, &cp, &siz);
|
|
retnum += nfsm_strtom(nd, cp, siz);
|
|
if (cp != namestr)
|
|
free(cp, M_NFSSTRING);
|
|
break;
|
|
case NFSATTRBIT_QUOTAHARD:
|
|
if (priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA))
|
|
freenum = fs->f_bfree;
|
|
else
|
|
freenum = fs->f_bavail;
|
|
#ifdef QUOTA
|
|
/*
|
|
* ufs_quotactl() insists that the uid argument
|
|
* equal p_ruid for non-root quota access, so
|
|
* we'll just make sure that's the case.
|
|
*/
|
|
savuid = p->p_cred->p_ruid;
|
|
p->p_cred->p_ruid = cred->cr_uid;
|
|
if (!VFS_QUOTACTL(mp, QCMD(Q_GETQUOTA,USRQUOTA),
|
|
cred->cr_uid, &dqb))
|
|
freenum = min(dqb.dqb_bhardlimit, freenum);
|
|
p->p_cred->p_ruid = savuid;
|
|
#endif /* QUOTA */
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
uquad = (u_int64_t)freenum;
|
|
NFSQUOTABLKTOBYTE(uquad, fs->f_bsize);
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_QUOTASOFT:
|
|
if (priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA))
|
|
freenum = fs->f_bfree;
|
|
else
|
|
freenum = fs->f_bavail;
|
|
#ifdef QUOTA
|
|
/*
|
|
* ufs_quotactl() insists that the uid argument
|
|
* equal p_ruid for non-root quota access, so
|
|
* we'll just make sure that's the case.
|
|
*/
|
|
savuid = p->p_cred->p_ruid;
|
|
p->p_cred->p_ruid = cred->cr_uid;
|
|
if (!VFS_QUOTACTL(mp, QCMD(Q_GETQUOTA,USRQUOTA),
|
|
cred->cr_uid, &dqb))
|
|
freenum = min(dqb.dqb_bsoftlimit, freenum);
|
|
p->p_cred->p_ruid = savuid;
|
|
#endif /* QUOTA */
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
uquad = (u_int64_t)freenum;
|
|
NFSQUOTABLKTOBYTE(uquad, fs->f_bsize);
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_QUOTAUSED:
|
|
freenum = 0;
|
|
#ifdef QUOTA
|
|
/*
|
|
* ufs_quotactl() insists that the uid argument
|
|
* equal p_ruid for non-root quota access, so
|
|
* we'll just make sure that's the case.
|
|
*/
|
|
savuid = p->p_cred->p_ruid;
|
|
p->p_cred->p_ruid = cred->cr_uid;
|
|
if (!VFS_QUOTACTL(mp, QCMD(Q_GETQUOTA,USRQUOTA),
|
|
cred->cr_uid, &dqb))
|
|
freenum = dqb.dqb_curblocks;
|
|
p->p_cred->p_ruid = savuid;
|
|
#endif /* QUOTA */
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
uquad = (u_int64_t)freenum;
|
|
NFSQUOTABLKTOBYTE(uquad, fs->f_bsize);
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_RAWDEV:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4SPECDATA);
|
|
*tl++ = txdr_unsigned(NFSMAJOR(vap->va_rdev));
|
|
*tl = txdr_unsigned(NFSMINOR(vap->va_rdev));
|
|
retnum += NFSX_V4SPECDATA;
|
|
break;
|
|
case NFSATTRBIT_SPACEAVAIL:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
if (priv_check_cred(cred, PRIV_VFS_BLOCKRESERVE)) {
|
|
if (pnfssf != NULL)
|
|
uquad = (u_int64_t)pnfssf->f_bfree;
|
|
else
|
|
uquad = (u_int64_t)fs->f_bfree;
|
|
} else {
|
|
if (pnfssf != NULL)
|
|
uquad = (u_int64_t)pnfssf->f_bavail;
|
|
else
|
|
uquad = (u_int64_t)fs->f_bavail;
|
|
}
|
|
if (pnfssf != NULL)
|
|
uquad *= pnfssf->f_bsize;
|
|
else
|
|
uquad *= fs->f_bsize;
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SPACEFREE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
if (pnfssf != NULL) {
|
|
uquad = (u_int64_t)pnfssf->f_bfree;
|
|
uquad *= pnfssf->f_bsize;
|
|
} else {
|
|
uquad = (u_int64_t)fs->f_bfree;
|
|
uquad *= fs->f_bsize;
|
|
}
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SPACETOTAL:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
if (pnfssf != NULL) {
|
|
uquad = (u_int64_t)pnfssf->f_blocks;
|
|
uquad *= pnfssf->f_bsize;
|
|
} else {
|
|
uquad = (u_int64_t)fs->f_blocks;
|
|
uquad *= fs->f_bsize;
|
|
}
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SPACEUSED:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
txdr_hyper(vap->va_bytes, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_TIMEACCESS:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
|
|
txdr_nfsv4time(&vap->va_atime, tl);
|
|
retnum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEACCESSSET:
|
|
if ((vap->va_vaflags & VA_UTIMES_NULL) == 0) {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4SETTIME);
|
|
*tl++ = txdr_unsigned(NFSV4SATTRTIME_TOCLIENT);
|
|
txdr_nfsv4time(&vap->va_atime, tl);
|
|
retnum += NFSX_V4SETTIME;
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV4SATTRTIME_TOSERVER);
|
|
retnum += NFSX_UNSIGNED;
|
|
}
|
|
break;
|
|
case NFSATTRBIT_TIMEDELTA:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
|
|
temptime.tv_sec = 0;
|
|
temptime.tv_nsec = 1000000000 / hz;
|
|
txdr_nfsv4time(&temptime, tl);
|
|
retnum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEMETADATA:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
|
|
txdr_nfsv4time(&vap->va_ctime, tl);
|
|
retnum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEMODIFY:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
|
|
txdr_nfsv4time(&vap->va_mtime, tl);
|
|
retnum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMECREATE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4TIME);
|
|
txdr_nfsv4time(&vap->va_birthtime, tl);
|
|
retnum += NFSX_V4TIME;
|
|
break;
|
|
case NFSATTRBIT_TIMEMODIFYSET:
|
|
if ((vap->va_vaflags & VA_UTIMES_NULL) == 0) {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_V4SETTIME);
|
|
*tl++ = txdr_unsigned(NFSV4SATTRTIME_TOCLIENT);
|
|
txdr_nfsv4time(&vap->va_mtime, tl);
|
|
retnum += NFSX_V4SETTIME;
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(NFSV4SATTRTIME_TOSERVER);
|
|
retnum += NFSX_UNSIGNED;
|
|
}
|
|
break;
|
|
case NFSATTRBIT_MOUNTEDONFILEID:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER);
|
|
if (at_root != 0)
|
|
uquad = mounted_on_fileno;
|
|
else
|
|
uquad = vap->va_fileid;
|
|
txdr_hyper(uquad, tl);
|
|
retnum += NFSX_HYPER;
|
|
break;
|
|
case NFSATTRBIT_SUPPATTREXCLCREAT:
|
|
NFSSETSUPP_ATTRBIT(&attrbits, nd);
|
|
NFSCLRNOTSETABLE_ATTRBIT(&attrbits, nd);
|
|
NFSCLRBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEACCESSSET);
|
|
retnum += nfsrv_putattrbit(nd, &attrbits);
|
|
break;
|
|
case NFSATTRBIT_FSLAYOUTTYPE:
|
|
case NFSATTRBIT_LAYOUTTYPE:
|
|
if (nfsrv_devidcnt == 0)
|
|
siz = 1;
|
|
else
|
|
siz = 2;
|
|
if (siz == 2) {
|
|
NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED);
|
|
*tl++ = txdr_unsigned(1); /* One entry. */
|
|
if (nfsrv_doflexfile != 0 ||
|
|
nfsrv_maxpnfsmirror > 1)
|
|
*tl = txdr_unsigned(NFSLAYOUT_FLEXFILE);
|
|
else
|
|
*tl = txdr_unsigned(
|
|
NFSLAYOUT_NFSV4_1_FILES);
|
|
} else {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = 0;
|
|
}
|
|
retnum += siz * NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_LAYOUTALIGNMENT:
|
|
case NFSATTRBIT_LAYOUTBLKSIZE:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
*tl = txdr_unsigned(nfs_srvmaxio);
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
case NFSATTRBIT_XATTRSUPPORT:
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (xattrsupp)
|
|
*tl = newnfs_true;
|
|
else
|
|
*tl = newnfs_false;
|
|
retnum += NFSX_UNSIGNED;
|
|
break;
|
|
default:
|
|
printf("EEK! Bad V4 attribute bitpos=%d\n", bitpos);
|
|
}
|
|
}
|
|
}
|
|
if (naclp != NULL)
|
|
acl_free(naclp);
|
|
free(fs, M_STATFS);
|
|
*retnump = txdr_unsigned(retnum);
|
|
return (retnum + prefixnum);
|
|
}
|
|
|
|
/*
|
|
* Calculate the files available attribute value.
|
|
*/
|
|
static uint32_t
|
|
nfsv4_filesavail(struct statfs *fs, struct mount *mp)
|
|
{
|
|
uint32_t freenum;
|
|
#ifdef QUOTA
|
|
struct dqblk dqb;
|
|
uid_t savuid;
|
|
NFSPROC_T *p;
|
|
#endif
|
|
|
|
/*
|
|
* Check quota and use min(quota, f_ffree).
|
|
*/
|
|
freenum = fs->f_ffree;
|
|
#ifdef QUOTA
|
|
/*
|
|
* This is old OpenBSD code that does not build
|
|
* for FreeBSD. I do not know if doing this is
|
|
* useful, so I will just leave the code here.
|
|
*/
|
|
p = curthread();
|
|
/*
|
|
* ufs_quotactl() insists that the uid argument
|
|
* equal p_ruid for non-root quota access, so
|
|
* we'll just make sure that's the case.
|
|
*/
|
|
savuid = p->p_cred->p_ruid;
|
|
p->p_cred->p_ruid = cred->cr_uid;
|
|
if (!VFS_QUOTACTL(mp, QCMD(Q_GETQUOTA,USRQUOTA),
|
|
cred->cr_uid, &dqb))
|
|
freenum = min(dqb.dqb_isoftlimit-dqb.dqb_curinodes,
|
|
freenum);
|
|
p->p_cred->p_ruid = savuid;
|
|
#endif /* QUOTA */
|
|
return (freenum);
|
|
}
|
|
|
|
/*
|
|
* Put the attribute bits onto an mbuf list.
|
|
* Return the number of bytes of output generated.
|
|
*/
|
|
int
|
|
nfsrv_putattrbit(struct nfsrv_descript *nd, nfsattrbit_t *attrbitp)
|
|
{
|
|
u_int32_t *tl;
|
|
int cnt, i, bytesize;
|
|
|
|
for (cnt = NFSATTRBIT_MAXWORDS; cnt > 0; cnt--)
|
|
if (attrbitp->bits[cnt - 1])
|
|
break;
|
|
bytesize = (cnt + 1) * NFSX_UNSIGNED;
|
|
NFSM_BUILD(tl, u_int32_t *, bytesize);
|
|
*tl++ = txdr_unsigned(cnt);
|
|
for (i = 0; i < cnt; i++)
|
|
*tl++ = txdr_unsigned(attrbitp->bits[i]);
|
|
return (bytesize);
|
|
}
|
|
|
|
/*
|
|
* Put the operation bits onto an mbuf list.
|
|
* Return the number of bytes of output generated.
|
|
*/
|
|
int
|
|
nfsrv_putopbit(struct nfsrv_descript *nd, nfsopbit_t *opbitp)
|
|
{
|
|
uint32_t *tl;
|
|
int cnt, i, bytesize;
|
|
|
|
for (cnt = NFSOPBIT_MAXWORDS; cnt > 0; cnt--)
|
|
if (opbitp->bits[cnt - 1])
|
|
break;
|
|
bytesize = (cnt + 1) * NFSX_UNSIGNED;
|
|
NFSM_BUILD(tl, uint32_t *, bytesize);
|
|
*tl++ = txdr_unsigned(cnt);
|
|
for (i = 0; i < cnt; i++)
|
|
*tl++ = txdr_unsigned(opbitp->bits[i]);
|
|
return (bytesize);
|
|
}
|
|
|
|
/*
|
|
* Convert a uid to a string.
|
|
* If the lookup fails, just output the digits.
|
|
* uid - the user id
|
|
* cpp - points to a buffer of size NFSV4_SMALLSTR
|
|
* (malloc a larger one, as required)
|
|
* retlenp - pointer to length to be returned
|
|
*/
|
|
void
|
|
nfsv4_uidtostr(uid_t uid, u_char **cpp, int *retlenp)
|
|
{
|
|
int i;
|
|
struct nfsusrgrp *usrp;
|
|
u_char *cp = *cpp;
|
|
uid_t tmp;
|
|
int cnt, hasampersand, len = NFSV4_SMALLSTR, ret;
|
|
struct nfsrv_lughash *hp;
|
|
|
|
NFSD_CURVNET_SET_QUIET(NFSD_TD_TO_VNET(curthread));
|
|
cnt = 0;
|
|
tryagain:
|
|
if (NFSD_VNET(nfsrv_dnsnamelen) > 0 &&
|
|
!NFSD_VNET(nfs_enable_uidtostring)) {
|
|
/*
|
|
* Always map nfsrv_defaultuid to "nobody".
|
|
*/
|
|
if (uid == NFSD_VNET(nfsrv_defaultuid)) {
|
|
i = NFSD_VNET(nfsrv_dnsnamelen) + 7;
|
|
if (i > len) {
|
|
if (len > NFSV4_SMALLSTR)
|
|
free(cp, M_NFSSTRING);
|
|
cp = malloc(i, M_NFSSTRING, M_WAITOK);
|
|
*cpp = cp;
|
|
len = i;
|
|
goto tryagain;
|
|
}
|
|
*retlenp = i;
|
|
NFSBCOPY("nobody@", cp, 7);
|
|
cp += 7;
|
|
NFSBCOPY(NFSD_VNET(nfsrv_dnsname), cp,
|
|
NFSD_VNET(nfsrv_dnsnamelen));
|
|
NFSD_CURVNET_RESTORE();
|
|
return;
|
|
}
|
|
hasampersand = 0;
|
|
hp = NFSUSERHASH(uid);
|
|
mtx_lock(&hp->mtx);
|
|
TAILQ_FOREACH(usrp, &hp->lughead, lug_numhash) {
|
|
if (usrp->lug_uid == uid) {
|
|
if (usrp->lug_expiry < NFSD_MONOSEC)
|
|
break;
|
|
/*
|
|
* If the name doesn't already have an '@'
|
|
* in it, append @domainname to it.
|
|
*/
|
|
for (i = 0; i < usrp->lug_namelen; i++) {
|
|
if (usrp->lug_name[i] == '@') {
|
|
hasampersand = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (hasampersand)
|
|
i = usrp->lug_namelen;
|
|
else
|
|
i = usrp->lug_namelen +
|
|
NFSD_VNET(nfsrv_dnsnamelen) + 1;
|
|
if (i > len) {
|
|
mtx_unlock(&hp->mtx);
|
|
if (len > NFSV4_SMALLSTR)
|
|
free(cp, M_NFSSTRING);
|
|
cp = malloc(i, M_NFSSTRING, M_WAITOK);
|
|
*cpp = cp;
|
|
len = i;
|
|
goto tryagain;
|
|
}
|
|
*retlenp = i;
|
|
NFSBCOPY(usrp->lug_name, cp, usrp->lug_namelen);
|
|
if (!hasampersand) {
|
|
cp += usrp->lug_namelen;
|
|
*cp++ = '@';
|
|
NFSBCOPY(NFSD_VNET(nfsrv_dnsname), cp,
|
|
NFSD_VNET(nfsrv_dnsnamelen));
|
|
}
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
|
|
TAILQ_INSERT_TAIL(&hp->lughead, usrp,
|
|
lug_numhash);
|
|
mtx_unlock(&hp->mtx);
|
|
NFSD_CURVNET_RESTORE();
|
|
return;
|
|
}
|
|
}
|
|
mtx_unlock(&hp->mtx);
|
|
cnt++;
|
|
ret = nfsrv_getuser(RPCNFSUSERD_GETUID, uid, (gid_t)0, NULL);
|
|
if (ret == 0 && cnt < 2)
|
|
goto tryagain;
|
|
}
|
|
|
|
/*
|
|
* No match, just return a string of digits.
|
|
*/
|
|
tmp = uid;
|
|
i = 0;
|
|
while (tmp || i == 0) {
|
|
tmp /= 10;
|
|
i++;
|
|
}
|
|
len = (i > len) ? len : i;
|
|
*retlenp = len;
|
|
cp += (len - 1);
|
|
tmp = uid;
|
|
for (i = 0; i < len; i++) {
|
|
*cp-- = '0' + (tmp % 10);
|
|
tmp /= 10;
|
|
}
|
|
NFSD_CURVNET_RESTORE();
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Get a credential for the uid with the server's group list.
|
|
* If none is found, just return the credential passed in after
|
|
* logging a warning message.
|
|
*/
|
|
struct ucred *
|
|
nfsrv_getgrpscred(struct ucred *oldcred)
|
|
{
|
|
struct nfsusrgrp *usrp;
|
|
struct ucred *newcred;
|
|
int cnt, ret;
|
|
uid_t uid;
|
|
struct nfsrv_lughash *hp;
|
|
|
|
cnt = 0;
|
|
uid = oldcred->cr_uid;
|
|
tryagain:
|
|
if (NFSD_VNET(nfsrv_dnsnamelen) > 0) {
|
|
hp = NFSUSERHASH(uid);
|
|
mtx_lock(&hp->mtx);
|
|
TAILQ_FOREACH(usrp, &hp->lughead, lug_numhash) {
|
|
if (usrp->lug_uid == uid) {
|
|
if (usrp->lug_expiry < NFSD_MONOSEC)
|
|
break;
|
|
if (usrp->lug_cred != NULL) {
|
|
newcred = crhold(usrp->lug_cred);
|
|
crfree(oldcred);
|
|
} else
|
|
newcred = oldcred;
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
|
|
TAILQ_INSERT_TAIL(&hp->lughead, usrp,
|
|
lug_numhash);
|
|
mtx_unlock(&hp->mtx);
|
|
return (newcred);
|
|
}
|
|
}
|
|
mtx_unlock(&hp->mtx);
|
|
cnt++;
|
|
ret = nfsrv_getuser(RPCNFSUSERD_GETUID, uid, (gid_t)0, NULL);
|
|
if (ret == 0 && cnt < 2)
|
|
goto tryagain;
|
|
}
|
|
return (oldcred);
|
|
}
|
|
|
|
/*
|
|
* Convert a string to a uid.
|
|
* If no conversion is possible return NFSERR_BADOWNER, otherwise
|
|
* return 0.
|
|
* If this is called from a client side mount using AUTH_SYS and the
|
|
* string is made up entirely of digits, just convert the string to
|
|
* a number.
|
|
*/
|
|
int
|
|
nfsv4_strtouid(struct nfsrv_descript *nd, u_char *str, int len, uid_t *uidp)
|
|
{
|
|
int i;
|
|
char *cp, *endstr, *str0;
|
|
struct nfsusrgrp *usrp;
|
|
int cnt, ret;
|
|
int error = 0;
|
|
uid_t tuid;
|
|
struct nfsrv_lughash *hp, *hp2;
|
|
|
|
NFSD_CURVNET_SET_QUIET(NFSD_TD_TO_VNET(curthread));
|
|
if (len == 0) {
|
|
error = NFSERR_BADOWNER;
|
|
goto out;
|
|
}
|
|
/* If a string of digits and an AUTH_SYS mount, just convert it. */
|
|
str0 = str;
|
|
tuid = (uid_t)strtoul(str0, &endstr, 10);
|
|
if ((endstr - str0) == len) {
|
|
/* A numeric string. */
|
|
if ((nd->nd_flag & ND_KERBV) == 0 &&
|
|
((nd->nd_flag & ND_NFSCL) != 0 ||
|
|
NFSD_VNET(nfsd_enable_stringtouid) != 0))
|
|
*uidp = tuid;
|
|
else
|
|
error = NFSERR_BADOWNER;
|
|
goto out;
|
|
}
|
|
/*
|
|
* Look for an '@'.
|
|
*/
|
|
cp = strchr(str0, '@');
|
|
if (cp != NULL)
|
|
i = (int)(cp++ - str0);
|
|
else
|
|
i = len;
|
|
|
|
cnt = 0;
|
|
tryagain:
|
|
if (NFSD_VNET(nfsrv_dnsnamelen) > 0) {
|
|
/*
|
|
* If an '@' is found and the domain name matches, search for
|
|
* the name with dns stripped off.
|
|
* Mixed case alpahbetics will match for the domain name, but
|
|
* all upper case will not.
|
|
*/
|
|
if (cnt == 0 && i < len && i > 0 &&
|
|
(len - 1 - i) == NFSD_VNET(nfsrv_dnsnamelen) &&
|
|
!nfsrv_cmpmixedcase(cp,
|
|
NFSD_VNET(nfsrv_dnsname), NFSD_VNET(nfsrv_dnsnamelen))) {
|
|
len -= (NFSD_VNET(nfsrv_dnsnamelen) + 1);
|
|
*(cp - 1) = '\0';
|
|
}
|
|
|
|
/*
|
|
* Check for the special case of "nobody".
|
|
*/
|
|
if (len == 6 && !NFSBCMP(str, "nobody", 6)) {
|
|
*uidp = NFSD_VNET(nfsrv_defaultuid);
|
|
error = 0;
|
|
goto out;
|
|
}
|
|
|
|
hp = NFSUSERNAMEHASH(str, len);
|
|
mtx_lock(&hp->mtx);
|
|
TAILQ_FOREACH(usrp, &hp->lughead, lug_namehash) {
|
|
if (usrp->lug_namelen == len &&
|
|
!NFSBCMP(usrp->lug_name, str, len)) {
|
|
if (usrp->lug_expiry < NFSD_MONOSEC)
|
|
break;
|
|
hp2 = NFSUSERHASH(usrp->lug_uid);
|
|
mtx_lock(&hp2->mtx);
|
|
TAILQ_REMOVE(&hp2->lughead, usrp, lug_numhash);
|
|
TAILQ_INSERT_TAIL(&hp2->lughead, usrp,
|
|
lug_numhash);
|
|
*uidp = usrp->lug_uid;
|
|
mtx_unlock(&hp2->mtx);
|
|
mtx_unlock(&hp->mtx);
|
|
error = 0;
|
|
goto out;
|
|
}
|
|
}
|
|
mtx_unlock(&hp->mtx);
|
|
cnt++;
|
|
ret = nfsrv_getuser(RPCNFSUSERD_GETUSER, (uid_t)0, (gid_t)0,
|
|
str);
|
|
if (ret == 0 && cnt < 2)
|
|
goto tryagain;
|
|
}
|
|
error = NFSERR_BADOWNER;
|
|
|
|
out:
|
|
NFSD_CURVNET_RESTORE();
|
|
NFSEXITCODE(error);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Convert a gid to a string.
|
|
* gid - the group id
|
|
* cpp - points to a buffer of size NFSV4_SMALLSTR
|
|
* (malloc a larger one, as required)
|
|
* retlenp - pointer to length to be returned
|
|
*/
|
|
void
|
|
nfsv4_gidtostr(gid_t gid, u_char **cpp, int *retlenp)
|
|
{
|
|
int i;
|
|
struct nfsusrgrp *usrp;
|
|
u_char *cp = *cpp;
|
|
gid_t tmp;
|
|
int cnt, hasampersand, len = NFSV4_SMALLSTR, ret;
|
|
struct nfsrv_lughash *hp;
|
|
|
|
NFSD_CURVNET_SET_QUIET(NFSD_TD_TO_VNET(curthread));
|
|
cnt = 0;
|
|
tryagain:
|
|
if (NFSD_VNET(nfsrv_dnsnamelen) > 0 &&
|
|
!NFSD_VNET(nfs_enable_uidtostring)) {
|
|
/*
|
|
* Always map nfsrv_defaultgid to "nogroup".
|
|
*/
|
|
if (gid == NFSD_VNET(nfsrv_defaultgid)) {
|
|
i = NFSD_VNET(nfsrv_dnsnamelen) + 8;
|
|
if (i > len) {
|
|
if (len > NFSV4_SMALLSTR)
|
|
free(cp, M_NFSSTRING);
|
|
cp = malloc(i, M_NFSSTRING, M_WAITOK);
|
|
*cpp = cp;
|
|
len = i;
|
|
goto tryagain;
|
|
}
|
|
*retlenp = i;
|
|
NFSBCOPY("nogroup@", cp, 8);
|
|
cp += 8;
|
|
NFSBCOPY(NFSD_VNET(nfsrv_dnsname), cp,
|
|
NFSD_VNET(nfsrv_dnsnamelen));
|
|
NFSD_CURVNET_RESTORE();
|
|
return;
|
|
}
|
|
hasampersand = 0;
|
|
hp = NFSGROUPHASH(gid);
|
|
mtx_lock(&hp->mtx);
|
|
TAILQ_FOREACH(usrp, &hp->lughead, lug_numhash) {
|
|
if (usrp->lug_gid == gid) {
|
|
if (usrp->lug_expiry < NFSD_MONOSEC)
|
|
break;
|
|
/*
|
|
* If the name doesn't already have an '@'
|
|
* in it, append @domainname to it.
|
|
*/
|
|
for (i = 0; i < usrp->lug_namelen; i++) {
|
|
if (usrp->lug_name[i] == '@') {
|
|
hasampersand = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (hasampersand)
|
|
i = usrp->lug_namelen;
|
|
else
|
|
i = usrp->lug_namelen +
|
|
NFSD_VNET(nfsrv_dnsnamelen) + 1;
|
|
if (i > len) {
|
|
mtx_unlock(&hp->mtx);
|
|
if (len > NFSV4_SMALLSTR)
|
|
free(cp, M_NFSSTRING);
|
|
cp = malloc(i, M_NFSSTRING, M_WAITOK);
|
|
*cpp = cp;
|
|
len = i;
|
|
goto tryagain;
|
|
}
|
|
*retlenp = i;
|
|
NFSBCOPY(usrp->lug_name, cp, usrp->lug_namelen);
|
|
if (!hasampersand) {
|
|
cp += usrp->lug_namelen;
|
|
*cp++ = '@';
|
|
NFSBCOPY(NFSD_VNET(nfsrv_dnsname), cp,
|
|
NFSD_VNET(nfsrv_dnsnamelen));
|
|
}
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
|
|
TAILQ_INSERT_TAIL(&hp->lughead, usrp,
|
|
lug_numhash);
|
|
mtx_unlock(&hp->mtx);
|
|
NFSD_CURVNET_RESTORE();
|
|
return;
|
|
}
|
|
}
|
|
mtx_unlock(&hp->mtx);
|
|
cnt++;
|
|
ret = nfsrv_getuser(RPCNFSUSERD_GETGID, (uid_t)0, gid, NULL);
|
|
if (ret == 0 && cnt < 2)
|
|
goto tryagain;
|
|
}
|
|
|
|
/*
|
|
* No match, just return a string of digits.
|
|
*/
|
|
tmp = gid;
|
|
i = 0;
|
|
while (tmp || i == 0) {
|
|
tmp /= 10;
|
|
i++;
|
|
}
|
|
len = (i > len) ? len : i;
|
|
*retlenp = len;
|
|
cp += (len - 1);
|
|
tmp = gid;
|
|
for (i = 0; i < len; i++) {
|
|
*cp-- = '0' + (tmp % 10);
|
|
tmp /= 10;
|
|
}
|
|
NFSD_CURVNET_RESTORE();
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Convert a string to a gid.
|
|
* If no conversion is possible return NFSERR_BADOWNER, otherwise
|
|
* return 0.
|
|
* If this is called from a client side mount using AUTH_SYS and the
|
|
* string is made up entirely of digits, just convert the string to
|
|
* a number.
|
|
*/
|
|
int
|
|
nfsv4_strtogid(struct nfsrv_descript *nd, u_char *str, int len, gid_t *gidp)
|
|
{
|
|
int i;
|
|
char *cp, *endstr, *str0;
|
|
struct nfsusrgrp *usrp;
|
|
int cnt, ret;
|
|
int error = 0;
|
|
gid_t tgid;
|
|
struct nfsrv_lughash *hp, *hp2;
|
|
|
|
NFSD_CURVNET_SET_QUIET(NFSD_TD_TO_VNET(curthread));
|
|
if (len == 0) {
|
|
error = NFSERR_BADOWNER;
|
|
goto out;
|
|
}
|
|
/* If a string of digits and an AUTH_SYS mount, just convert it. */
|
|
str0 = str;
|
|
tgid = (gid_t)strtoul(str0, &endstr, 10);
|
|
if ((endstr - str0) == len) {
|
|
/* A numeric string. */
|
|
if ((nd->nd_flag & ND_KERBV) == 0 &&
|
|
((nd->nd_flag & ND_NFSCL) != 0 ||
|
|
NFSD_VNET(nfsd_enable_stringtouid) != 0))
|
|
*gidp = tgid;
|
|
else
|
|
error = NFSERR_BADOWNER;
|
|
goto out;
|
|
}
|
|
/*
|
|
* Look for an '@'.
|
|
*/
|
|
cp = strchr(str0, '@');
|
|
if (cp != NULL)
|
|
i = (int)(cp++ - str0);
|
|
else
|
|
i = len;
|
|
|
|
cnt = 0;
|
|
tryagain:
|
|
if (NFSD_VNET(nfsrv_dnsnamelen) > 0) {
|
|
/*
|
|
* If an '@' is found and the dns name matches, search for the
|
|
* name with the dns stripped off.
|
|
*/
|
|
if (cnt == 0 && i < len && i > 0 &&
|
|
(len - 1 - i) == NFSD_VNET(nfsrv_dnsnamelen) &&
|
|
!nfsrv_cmpmixedcase(cp,
|
|
NFSD_VNET(nfsrv_dnsname), NFSD_VNET(nfsrv_dnsnamelen))) {
|
|
len -= (NFSD_VNET(nfsrv_dnsnamelen) + 1);
|
|
*(cp - 1) = '\0';
|
|
}
|
|
|
|
/*
|
|
* Check for the special case of "nogroup".
|
|
*/
|
|
if (len == 7 && !NFSBCMP(str, "nogroup", 7)) {
|
|
*gidp = NFSD_VNET(nfsrv_defaultgid);
|
|
error = 0;
|
|
goto out;
|
|
}
|
|
|
|
hp = NFSGROUPNAMEHASH(str, len);
|
|
mtx_lock(&hp->mtx);
|
|
TAILQ_FOREACH(usrp, &hp->lughead, lug_namehash) {
|
|
if (usrp->lug_namelen == len &&
|
|
!NFSBCMP(usrp->lug_name, str, len)) {
|
|
if (usrp->lug_expiry < NFSD_MONOSEC)
|
|
break;
|
|
hp2 = NFSGROUPHASH(usrp->lug_gid);
|
|
mtx_lock(&hp2->mtx);
|
|
TAILQ_REMOVE(&hp2->lughead, usrp, lug_numhash);
|
|
TAILQ_INSERT_TAIL(&hp2->lughead, usrp,
|
|
lug_numhash);
|
|
*gidp = usrp->lug_gid;
|
|
mtx_unlock(&hp2->mtx);
|
|
mtx_unlock(&hp->mtx);
|
|
error = 0;
|
|
goto out;
|
|
}
|
|
}
|
|
mtx_unlock(&hp->mtx);
|
|
cnt++;
|
|
ret = nfsrv_getuser(RPCNFSUSERD_GETGROUP, (uid_t)0, (gid_t)0,
|
|
str);
|
|
if (ret == 0 && cnt < 2)
|
|
goto tryagain;
|
|
}
|
|
error = NFSERR_BADOWNER;
|
|
|
|
out:
|
|
NFSD_CURVNET_RESTORE();
|
|
NFSEXITCODE(error);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Cmp len chars, allowing mixed case in the first argument to match lower
|
|
* case in the second, but not if the first argument is all upper case.
|
|
* Return 0 for a match, 1 otherwise.
|
|
*/
|
|
static int
|
|
nfsrv_cmpmixedcase(u_char *cp, u_char *cp2, int len)
|
|
{
|
|
int i;
|
|
u_char tmp;
|
|
int fndlower = 0;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
if (*cp >= 'A' && *cp <= 'Z') {
|
|
tmp = *cp++ + ('a' - 'A');
|
|
} else {
|
|
tmp = *cp++;
|
|
if (tmp >= 'a' && tmp <= 'z')
|
|
fndlower = 1;
|
|
}
|
|
if (tmp != *cp2++)
|
|
return (1);
|
|
}
|
|
if (fndlower)
|
|
return (0);
|
|
else
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Set the port for the nfsuserd.
|
|
*/
|
|
int
|
|
nfsrv_nfsuserdport(struct nfsuserd_args *nargs, NFSPROC_T *p)
|
|
{
|
|
struct nfssockreq *rp;
|
|
#ifdef INET
|
|
struct sockaddr_in *ad;
|
|
#endif
|
|
#ifdef INET6
|
|
struct sockaddr_in6 *ad6;
|
|
const struct in6_addr in6loopback = IN6ADDR_LOOPBACK_INIT;
|
|
#endif
|
|
int error;
|
|
|
|
NFSLOCKNAMEID();
|
|
if (NFSD_VNET(nfsrv_nfsuserd) != NOTRUNNING) {
|
|
NFSUNLOCKNAMEID();
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
NFSD_VNET(nfsrv_nfsuserd) = STARTSTOP;
|
|
/*
|
|
* Set up the socket record and connect.
|
|
* Set nr_client NULL before unlocking, just to ensure that no other
|
|
* process/thread/core will use a bogus old value. This could only
|
|
* occur if the use of the nameid lock to protect nfsrv_nfsuserd is
|
|
* broken.
|
|
*/
|
|
rp = &NFSD_VNET(nfsrv_nfsuserdsock);
|
|
rp->nr_client = NULL;
|
|
NFSUNLOCKNAMEID();
|
|
rp->nr_sotype = SOCK_DGRAM;
|
|
rp->nr_soproto = IPPROTO_UDP;
|
|
rp->nr_lock = (NFSR_RESERVEDPORT | NFSR_LOCALHOST);
|
|
rp->nr_cred = NULL;
|
|
rp->nr_prog = RPCPROG_NFSUSERD;
|
|
error = 0;
|
|
switch (nargs->nuserd_family) {
|
|
#ifdef INET
|
|
case AF_INET:
|
|
rp->nr_nam = malloc(sizeof(struct sockaddr_in), M_SONAME,
|
|
M_WAITOK | M_ZERO);
|
|
ad = (struct sockaddr_in *)rp->nr_nam;
|
|
ad->sin_len = sizeof(struct sockaddr_in);
|
|
ad->sin_family = AF_INET;
|
|
ad->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
|
ad->sin_port = nargs->nuserd_port;
|
|
break;
|
|
#endif
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
rp->nr_nam = malloc(sizeof(struct sockaddr_in6), M_SONAME,
|
|
M_WAITOK | M_ZERO);
|
|
ad6 = (struct sockaddr_in6 *)rp->nr_nam;
|
|
ad6->sin6_len = sizeof(struct sockaddr_in6);
|
|
ad6->sin6_family = AF_INET6;
|
|
ad6->sin6_addr = in6loopback;
|
|
ad6->sin6_port = nargs->nuserd_port;
|
|
break;
|
|
#endif
|
|
default:
|
|
error = ENXIO;
|
|
}
|
|
rp->nr_vers = RPCNFSUSERD_VERS;
|
|
if (error == 0)
|
|
error = newnfs_connect(NULL, rp, NFSPROCCRED(p), p, 0, false,
|
|
&rp->nr_client);
|
|
if (error == 0) {
|
|
NFSLOCKNAMEID();
|
|
NFSD_VNET(nfsrv_nfsuserd) = RUNNING;
|
|
NFSUNLOCKNAMEID();
|
|
} else {
|
|
free(rp->nr_nam, M_SONAME);
|
|
NFSLOCKNAMEID();
|
|
NFSD_VNET(nfsrv_nfsuserd) = NOTRUNNING;
|
|
NFSUNLOCKNAMEID();
|
|
}
|
|
out:
|
|
NFSEXITCODE(error);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Delete the nfsuserd port.
|
|
*/
|
|
void
|
|
nfsrv_nfsuserddelport(void)
|
|
{
|
|
|
|
NFSLOCKNAMEID();
|
|
if (NFSD_VNET(nfsrv_nfsuserd) != RUNNING) {
|
|
NFSUNLOCKNAMEID();
|
|
return;
|
|
}
|
|
NFSD_VNET(nfsrv_nfsuserd) = STARTSTOP;
|
|
/* Wait for all upcalls to complete. */
|
|
while (NFSD_VNET(nfsrv_userdupcalls) > 0)
|
|
msleep(&NFSD_VNET(nfsrv_userdupcalls), NFSNAMEIDMUTEXPTR, PVFS,
|
|
"nfsupcalls", 0);
|
|
NFSUNLOCKNAMEID();
|
|
newnfs_disconnect(NULL, &NFSD_VNET(nfsrv_nfsuserdsock));
|
|
free(NFSD_VNET(nfsrv_nfsuserdsock).nr_nam, M_SONAME);
|
|
NFSLOCKNAMEID();
|
|
NFSD_VNET(nfsrv_nfsuserd) = NOTRUNNING;
|
|
NFSUNLOCKNAMEID();
|
|
}
|
|
|
|
/*
|
|
* Do upcalls to the nfsuserd, for cache misses of the owner/ownergroup
|
|
* name<-->id cache.
|
|
* Returns 0 upon success, non-zero otherwise.
|
|
*/
|
|
static int
|
|
nfsrv_getuser(int procnum, uid_t uid, gid_t gid, char *name)
|
|
{
|
|
u_int32_t *tl;
|
|
struct nfsrv_descript *nd;
|
|
int len;
|
|
struct nfsrv_descript nfsd;
|
|
struct ucred *cred;
|
|
int error;
|
|
|
|
NFSLOCKNAMEID();
|
|
if (NFSD_VNET(nfsrv_nfsuserd) != RUNNING) {
|
|
NFSUNLOCKNAMEID();
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
/*
|
|
* Maintain a count of upcalls in progress, so that nfsrv_X()
|
|
* can wait until no upcalls are in progress.
|
|
*/
|
|
NFSD_VNET(nfsrv_userdupcalls)++;
|
|
NFSUNLOCKNAMEID();
|
|
KASSERT(NFSD_VNET(nfsrv_userdupcalls) > 0,
|
|
("nfsrv_getuser: non-positive upcalls"));
|
|
nd = &nfsd;
|
|
cred = newnfs_getcred();
|
|
nd->nd_flag = ND_GSSINITREPLY;
|
|
nfsrvd_rephead(nd);
|
|
|
|
nd->nd_procnum = procnum;
|
|
if (procnum == RPCNFSUSERD_GETUID || procnum == RPCNFSUSERD_GETGID) {
|
|
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (procnum == RPCNFSUSERD_GETUID)
|
|
*tl = txdr_unsigned(uid);
|
|
else
|
|
*tl = txdr_unsigned(gid);
|
|
} else {
|
|
len = strlen(name);
|
|
(void) nfsm_strtom(nd, name, len);
|
|
}
|
|
error = newnfs_request(nd, NULL, NULL, &NFSD_VNET(nfsrv_nfsuserdsock),
|
|
NULL, NULL, cred, RPCPROG_NFSUSERD, RPCNFSUSERD_VERS, NULL, 0,
|
|
NULL, NULL);
|
|
NFSLOCKNAMEID();
|
|
if (--NFSD_VNET(nfsrv_userdupcalls) == 0 &&
|
|
NFSD_VNET(nfsrv_nfsuserd) == STARTSTOP)
|
|
wakeup(&NFSD_VNET(nfsrv_userdupcalls));
|
|
NFSUNLOCKNAMEID();
|
|
NFSFREECRED(cred);
|
|
if (!error) {
|
|
m_freem(nd->nd_mrep);
|
|
error = nd->nd_repstat;
|
|
}
|
|
out:
|
|
NFSEXITCODE(error);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* This function is called from the nfssvc(2) system call, to update the
|
|
* kernel user/group name list(s) for the V4 owner and ownergroup attributes.
|
|
*/
|
|
int
|
|
nfssvc_idname(struct nfsd_idargs *nidp)
|
|
{
|
|
struct nfsusrgrp *nusrp, *usrp, *newusrp;
|
|
struct nfsrv_lughash *hp_name, *hp_idnum, *thp;
|
|
int i, group_locked, groupname_locked, user_locked, username_locked;
|
|
int error = 0;
|
|
u_char *cp;
|
|
gid_t *grps;
|
|
struct ucred *cr;
|
|
static int onethread = 0;
|
|
static time_t lasttime = 0;
|
|
|
|
if (nidp->nid_namelen <= 0 || nidp->nid_namelen > MAXHOSTNAMELEN) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
if (nidp->nid_flag & NFSID_INITIALIZE) {
|
|
cp = malloc(nidp->nid_namelen + 1, M_NFSSTRING, M_WAITOK);
|
|
error = copyin(nidp->nid_name, cp, nidp->nid_namelen);
|
|
if (error != 0) {
|
|
free(cp, M_NFSSTRING);
|
|
goto out;
|
|
}
|
|
if (atomic_cmpset_acq_int(&NFSD_VNET(nfsrv_dnsnamelen), 0, 0) ==
|
|
0) {
|
|
/*
|
|
* Free up all the old stuff and reinitialize hash
|
|
* lists. All mutexes for both lists must be locked,
|
|
* with the user/group name ones before the uid/gid
|
|
* ones, to avoid a LOR.
|
|
*/
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsusernamehash)[i].mtx);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsuserhash)[i].mtx);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
TAILQ_FOREACH_SAFE(usrp,
|
|
&NFSD_VNET(nfsuserhash)[i].lughead, lug_numhash, nusrp)
|
|
nfsrv_removeuser(usrp, 1);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_unlock(&NFSD_VNET(nfsuserhash)[i].mtx);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_unlock(&NFSD_VNET(nfsusernamehash)[i].mtx);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsgroupnamehash)[i].mtx);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsgrouphash)[i].mtx);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
TAILQ_FOREACH_SAFE(usrp,
|
|
&NFSD_VNET(nfsgrouphash)[i].lughead, lug_numhash,
|
|
nusrp)
|
|
nfsrv_removeuser(usrp, 0);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_unlock(&NFSD_VNET(nfsgrouphash)[i].mtx);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_unlock(&NFSD_VNET(nfsgroupnamehash)[i].mtx);
|
|
free(NFSD_VNET(nfsrv_dnsname), M_NFSSTRING);
|
|
NFSD_VNET(nfsrv_dnsname) = NULL;
|
|
}
|
|
if (NFSD_VNET(nfsuserhash) == NULL) {
|
|
/* Allocate the hash tables. */
|
|
NFSD_VNET(nfsuserhash) = malloc(sizeof(struct nfsrv_lughash) *
|
|
nfsrv_lughashsize, M_NFSUSERGROUP, M_WAITOK |
|
|
M_ZERO);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_init(&NFSD_VNET(nfsuserhash)[i].mtx, "nfsuidhash",
|
|
NULL, MTX_DEF | MTX_DUPOK);
|
|
NFSD_VNET(nfsusernamehash) = malloc(sizeof(struct nfsrv_lughash) *
|
|
nfsrv_lughashsize, M_NFSUSERGROUP, M_WAITOK |
|
|
M_ZERO);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_init(&NFSD_VNET(nfsusernamehash)[i].mtx,
|
|
"nfsusrhash", NULL, MTX_DEF |
|
|
MTX_DUPOK);
|
|
NFSD_VNET(nfsgrouphash) = malloc(sizeof(struct nfsrv_lughash) *
|
|
nfsrv_lughashsize, M_NFSUSERGROUP, M_WAITOK |
|
|
M_ZERO);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_init(&NFSD_VNET(nfsgrouphash)[i].mtx, "nfsgidhash",
|
|
NULL, MTX_DEF | MTX_DUPOK);
|
|
NFSD_VNET(nfsgroupnamehash) = malloc(sizeof(struct nfsrv_lughash) *
|
|
nfsrv_lughashsize, M_NFSUSERGROUP, M_WAITOK |
|
|
M_ZERO);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_init(&NFSD_VNET(nfsgroupnamehash)[i].mtx,
|
|
"nfsgrphash", NULL, MTX_DEF | MTX_DUPOK);
|
|
}
|
|
/* (Re)initialize the list heads. */
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
TAILQ_INIT(&NFSD_VNET(nfsuserhash)[i].lughead);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
TAILQ_INIT(&NFSD_VNET(nfsusernamehash)[i].lughead);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
TAILQ_INIT(&NFSD_VNET(nfsgrouphash)[i].lughead);
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
TAILQ_INIT(&NFSD_VNET(nfsgroupnamehash)[i].lughead);
|
|
|
|
/*
|
|
* Put name in "DNS" string.
|
|
*/
|
|
NFSD_VNET(nfsrv_dnsname) = cp;
|
|
NFSD_VNET(nfsrv_defaultuid) = nidp->nid_uid;
|
|
NFSD_VNET(nfsrv_defaultgid) = nidp->nid_gid;
|
|
NFSD_VNET(nfsrv_usercnt) = 0;
|
|
NFSD_VNET(nfsrv_usermax) = nidp->nid_usermax;
|
|
atomic_store_rel_int(&NFSD_VNET(nfsrv_dnsnamelen),
|
|
nidp->nid_namelen);
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* malloc the new one now, so any potential sleep occurs before
|
|
* manipulation of the lists.
|
|
*/
|
|
newusrp = malloc(sizeof(struct nfsusrgrp) + nidp->nid_namelen,
|
|
M_NFSUSERGROUP, M_WAITOK | M_ZERO);
|
|
error = copyin(nidp->nid_name, newusrp->lug_name,
|
|
nidp->nid_namelen);
|
|
if (error == 0 && nidp->nid_ngroup > 0 &&
|
|
(nidp->nid_flag & NFSID_ADDUID) != 0) {
|
|
grps = malloc(sizeof(gid_t) * nidp->nid_ngroup, M_TEMP,
|
|
M_WAITOK);
|
|
error = copyin(nidp->nid_grps, grps,
|
|
sizeof(gid_t) * nidp->nid_ngroup);
|
|
if (error == 0) {
|
|
/*
|
|
* Create a credential just like svc_getcred(),
|
|
* but using the group list provided.
|
|
*/
|
|
cr = crget();
|
|
cr->cr_uid = cr->cr_ruid = cr->cr_svuid = nidp->nid_uid;
|
|
crsetgroups(cr, nidp->nid_ngroup, grps);
|
|
cr->cr_rgid = cr->cr_svgid = cr->cr_groups[0];
|
|
cr->cr_prison = curthread->td_ucred->cr_prison;
|
|
prison_hold(cr->cr_prison);
|
|
#ifdef MAC
|
|
mac_cred_associate_nfsd(cr);
|
|
#endif
|
|
newusrp->lug_cred = cr;
|
|
}
|
|
free(grps, M_TEMP);
|
|
}
|
|
if (error) {
|
|
free(newusrp, M_NFSUSERGROUP);
|
|
goto out;
|
|
}
|
|
newusrp->lug_namelen = nidp->nid_namelen;
|
|
|
|
/*
|
|
* The lock order is username[0]->[nfsrv_lughashsize - 1] followed
|
|
* by uid[0]->[nfsrv_lughashsize - 1], with the same for group.
|
|
* The flags user_locked, username_locked, group_locked and
|
|
* groupname_locked are set to indicate all of those hash lists are
|
|
* locked. hp_name != NULL and hp_idnum != NULL indicates that
|
|
* the respective one mutex is locked.
|
|
*/
|
|
user_locked = username_locked = group_locked = groupname_locked = 0;
|
|
hp_name = hp_idnum = NULL;
|
|
|
|
/*
|
|
* Delete old entries, as required.
|
|
*/
|
|
if (nidp->nid_flag & (NFSID_DELUID | NFSID_ADDUID)) {
|
|
/* Must lock all username hash lists first, to avoid a LOR. */
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsusernamehash)[i].mtx);
|
|
username_locked = 1;
|
|
hp_idnum = NFSUSERHASH(nidp->nid_uid);
|
|
mtx_lock(&hp_idnum->mtx);
|
|
TAILQ_FOREACH_SAFE(usrp, &hp_idnum->lughead, lug_numhash,
|
|
nusrp) {
|
|
if (usrp->lug_uid == nidp->nid_uid)
|
|
nfsrv_removeuser(usrp, 1);
|
|
}
|
|
} else if (nidp->nid_flag & (NFSID_DELUSERNAME | NFSID_ADDUSERNAME)) {
|
|
hp_name = NFSUSERNAMEHASH(newusrp->lug_name,
|
|
newusrp->lug_namelen);
|
|
mtx_lock(&hp_name->mtx);
|
|
TAILQ_FOREACH_SAFE(usrp, &hp_name->lughead, lug_namehash,
|
|
nusrp) {
|
|
if (usrp->lug_namelen == newusrp->lug_namelen &&
|
|
!NFSBCMP(usrp->lug_name, newusrp->lug_name,
|
|
usrp->lug_namelen)) {
|
|
thp = NFSUSERHASH(usrp->lug_uid);
|
|
mtx_lock(&thp->mtx);
|
|
nfsrv_removeuser(usrp, 1);
|
|
mtx_unlock(&thp->mtx);
|
|
}
|
|
}
|
|
hp_idnum = NFSUSERHASH(nidp->nid_uid);
|
|
mtx_lock(&hp_idnum->mtx);
|
|
} else if (nidp->nid_flag & (NFSID_DELGID | NFSID_ADDGID)) {
|
|
/* Must lock all groupname hash lists first, to avoid a LOR. */
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsgroupnamehash)[i].mtx);
|
|
groupname_locked = 1;
|
|
hp_idnum = NFSGROUPHASH(nidp->nid_gid);
|
|
mtx_lock(&hp_idnum->mtx);
|
|
TAILQ_FOREACH_SAFE(usrp, &hp_idnum->lughead, lug_numhash,
|
|
nusrp) {
|
|
if (usrp->lug_gid == nidp->nid_gid)
|
|
nfsrv_removeuser(usrp, 0);
|
|
}
|
|
} else if (nidp->nid_flag & (NFSID_DELGROUPNAME | NFSID_ADDGROUPNAME)) {
|
|
hp_name = NFSGROUPNAMEHASH(newusrp->lug_name,
|
|
newusrp->lug_namelen);
|
|
mtx_lock(&hp_name->mtx);
|
|
TAILQ_FOREACH_SAFE(usrp, &hp_name->lughead, lug_namehash,
|
|
nusrp) {
|
|
if (usrp->lug_namelen == newusrp->lug_namelen &&
|
|
!NFSBCMP(usrp->lug_name, newusrp->lug_name,
|
|
usrp->lug_namelen)) {
|
|
thp = NFSGROUPHASH(usrp->lug_gid);
|
|
mtx_lock(&thp->mtx);
|
|
nfsrv_removeuser(usrp, 0);
|
|
mtx_unlock(&thp->mtx);
|
|
}
|
|
}
|
|
hp_idnum = NFSGROUPHASH(nidp->nid_gid);
|
|
mtx_lock(&hp_idnum->mtx);
|
|
}
|
|
|
|
/*
|
|
* Now, we can add the new one.
|
|
*/
|
|
if (nidp->nid_usertimeout)
|
|
newusrp->lug_expiry = NFSD_MONOSEC + nidp->nid_usertimeout;
|
|
else
|
|
newusrp->lug_expiry = NFSD_MONOSEC + 5;
|
|
if (nidp->nid_flag & (NFSID_ADDUID | NFSID_ADDUSERNAME)) {
|
|
newusrp->lug_uid = nidp->nid_uid;
|
|
thp = NFSUSERHASH(newusrp->lug_uid);
|
|
mtx_assert(&thp->mtx, MA_OWNED);
|
|
TAILQ_INSERT_TAIL(&thp->lughead, newusrp, lug_numhash);
|
|
thp = NFSUSERNAMEHASH(newusrp->lug_name, newusrp->lug_namelen);
|
|
mtx_assert(&thp->mtx, MA_OWNED);
|
|
TAILQ_INSERT_TAIL(&thp->lughead, newusrp, lug_namehash);
|
|
atomic_add_int(&NFSD_VNET(nfsrv_usercnt), 1);
|
|
} else if (nidp->nid_flag & (NFSID_ADDGID | NFSID_ADDGROUPNAME)) {
|
|
newusrp->lug_gid = nidp->nid_gid;
|
|
thp = NFSGROUPHASH(newusrp->lug_gid);
|
|
mtx_assert(&thp->mtx, MA_OWNED);
|
|
TAILQ_INSERT_TAIL(&thp->lughead, newusrp, lug_numhash);
|
|
thp = NFSGROUPNAMEHASH(newusrp->lug_name, newusrp->lug_namelen);
|
|
mtx_assert(&thp->mtx, MA_OWNED);
|
|
TAILQ_INSERT_TAIL(&thp->lughead, newusrp, lug_namehash);
|
|
atomic_add_int(&NFSD_VNET(nfsrv_usercnt), 1);
|
|
} else {
|
|
if (newusrp->lug_cred != NULL)
|
|
crfree(newusrp->lug_cred);
|
|
free(newusrp, M_NFSUSERGROUP);
|
|
}
|
|
|
|
/*
|
|
* Once per second, allow one thread to trim the cache.
|
|
*/
|
|
if (lasttime < NFSD_MONOSEC &&
|
|
atomic_cmpset_acq_int(&onethread, 0, 1) != 0) {
|
|
/*
|
|
* First, unlock the single mutexes, so that all entries
|
|
* can be locked and any LOR is avoided.
|
|
*/
|
|
if (hp_name != NULL) {
|
|
mtx_unlock(&hp_name->mtx);
|
|
hp_name = NULL;
|
|
}
|
|
if (hp_idnum != NULL) {
|
|
mtx_unlock(&hp_idnum->mtx);
|
|
hp_idnum = NULL;
|
|
}
|
|
|
|
if ((nidp->nid_flag & (NFSID_DELUID | NFSID_ADDUID |
|
|
NFSID_DELUSERNAME | NFSID_ADDUSERNAME)) != 0) {
|
|
if (username_locked == 0) {
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsusernamehash)[i].mtx);
|
|
username_locked = 1;
|
|
}
|
|
KASSERT(user_locked == 0,
|
|
("nfssvc_idname: user_locked"));
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsuserhash)[i].mtx);
|
|
user_locked = 1;
|
|
for (i = 0; i < nfsrv_lughashsize; i++) {
|
|
TAILQ_FOREACH_SAFE(usrp,
|
|
&NFSD_VNET(nfsuserhash)[i].lughead, lug_numhash,
|
|
nusrp)
|
|
if (usrp->lug_expiry < NFSD_MONOSEC)
|
|
nfsrv_removeuser(usrp, 1);
|
|
}
|
|
for (i = 0; i < nfsrv_lughashsize; i++) {
|
|
/*
|
|
* Trim the cache using an approximate LRU
|
|
* algorithm. This code deletes the least
|
|
* recently used entry on each hash list.
|
|
*/
|
|
if (NFSD_VNET(nfsrv_usercnt) <= NFSD_VNET(nfsrv_usermax))
|
|
break;
|
|
usrp = TAILQ_FIRST(&NFSD_VNET(nfsuserhash)[i].lughead);
|
|
if (usrp != NULL)
|
|
nfsrv_removeuser(usrp, 1);
|
|
}
|
|
} else {
|
|
if (groupname_locked == 0) {
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsgroupnamehash)[i].mtx);
|
|
groupname_locked = 1;
|
|
}
|
|
KASSERT(group_locked == 0,
|
|
("nfssvc_idname: group_locked"));
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_lock(&NFSD_VNET(nfsgrouphash)[i].mtx);
|
|
group_locked = 1;
|
|
for (i = 0; i < nfsrv_lughashsize; i++) {
|
|
TAILQ_FOREACH_SAFE(usrp,
|
|
&NFSD_VNET(nfsgrouphash)[i].lughead, lug_numhash,
|
|
nusrp)
|
|
if (usrp->lug_expiry < NFSD_MONOSEC)
|
|
nfsrv_removeuser(usrp, 0);
|
|
}
|
|
for (i = 0; i < nfsrv_lughashsize; i++) {
|
|
/*
|
|
* Trim the cache using an approximate LRU
|
|
* algorithm. This code deletes the least
|
|
* recently user entry on each hash list.
|
|
*/
|
|
if (NFSD_VNET(nfsrv_usercnt) <= NFSD_VNET(nfsrv_usermax))
|
|
break;
|
|
usrp = TAILQ_FIRST(&NFSD_VNET(nfsgrouphash)[i].lughead);
|
|
if (usrp != NULL)
|
|
nfsrv_removeuser(usrp, 0);
|
|
}
|
|
}
|
|
lasttime = NFSD_MONOSEC;
|
|
atomic_store_rel_int(&onethread, 0);
|
|
}
|
|
|
|
/* Now, unlock all locked mutexes. */
|
|
if (hp_idnum != NULL)
|
|
mtx_unlock(&hp_idnum->mtx);
|
|
if (hp_name != NULL)
|
|
mtx_unlock(&hp_name->mtx);
|
|
if (user_locked != 0)
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_unlock(&NFSD_VNET(nfsuserhash)[i].mtx);
|
|
if (username_locked != 0)
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_unlock(&NFSD_VNET(nfsusernamehash)[i].mtx);
|
|
if (group_locked != 0)
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_unlock(&NFSD_VNET(nfsgrouphash)[i].mtx);
|
|
if (groupname_locked != 0)
|
|
for (i = 0; i < nfsrv_lughashsize; i++)
|
|
mtx_unlock(&NFSD_VNET(nfsgroupnamehash)[i].mtx);
|
|
out:
|
|
NFSEXITCODE(error);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Remove a user/group name element.
|
|
*/
|
|
static void
|
|
nfsrv_removeuser(struct nfsusrgrp *usrp, int isuser)
|
|
{
|
|
struct nfsrv_lughash *hp;
|
|
|
|
if (isuser != 0) {
|
|
hp = NFSUSERHASH(usrp->lug_uid);
|
|
mtx_assert(&hp->mtx, MA_OWNED);
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
|
|
hp = NFSUSERNAMEHASH(usrp->lug_name, usrp->lug_namelen);
|
|
mtx_assert(&hp->mtx, MA_OWNED);
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_namehash);
|
|
} else {
|
|
hp = NFSGROUPHASH(usrp->lug_gid);
|
|
mtx_assert(&hp->mtx, MA_OWNED);
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
|
|
hp = NFSGROUPNAMEHASH(usrp->lug_name, usrp->lug_namelen);
|
|
mtx_assert(&hp->mtx, MA_OWNED);
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_namehash);
|
|
}
|
|
atomic_add_int(&NFSD_VNET(nfsrv_usercnt), -1);
|
|
if (usrp->lug_cred != NULL)
|
|
crfree(usrp->lug_cred);
|
|
free(usrp, M_NFSUSERGROUP);
|
|
}
|
|
|
|
/*
|
|
* Free up all the allocations related to the name<-->id cache.
|
|
* This function should only be called when the nfsuserd daemon isn't
|
|
* running, since it doesn't do any locking.
|
|
* This function is meant to be called when a vnet jail is destroyed.
|
|
*/
|
|
void
|
|
nfsrv_cleanusergroup(void)
|
|
{
|
|
struct nfsrv_lughash *hp, *hp2;
|
|
struct nfsusrgrp *nusrp, *usrp;
|
|
int i;
|
|
|
|
if (NFSD_VNET(nfsuserhash) == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < nfsrv_lughashsize; i++) {
|
|
hp = &NFSD_VNET(nfsuserhash)[i];
|
|
TAILQ_FOREACH_SAFE(usrp, &hp->lughead, lug_numhash, nusrp) {
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
|
|
hp2 = NFSUSERNAMEHASH(usrp->lug_name,
|
|
usrp->lug_namelen);
|
|
TAILQ_REMOVE(&hp2->lughead, usrp, lug_namehash);
|
|
if (usrp->lug_cred != NULL)
|
|
crfree(usrp->lug_cred);
|
|
free(usrp, M_NFSUSERGROUP);
|
|
}
|
|
hp = &NFSD_VNET(nfsgrouphash)[i];
|
|
TAILQ_FOREACH_SAFE(usrp, &hp->lughead, lug_numhash, nusrp) {
|
|
TAILQ_REMOVE(&hp->lughead, usrp, lug_numhash);
|
|
hp2 = NFSGROUPNAMEHASH(usrp->lug_name,
|
|
usrp->lug_namelen);
|
|
TAILQ_REMOVE(&hp2->lughead, usrp, lug_namehash);
|
|
if (usrp->lug_cred != NULL)
|
|
crfree(usrp->lug_cred);
|
|
free(usrp, M_NFSUSERGROUP);
|
|
}
|
|
mtx_destroy(&NFSD_VNET(nfsuserhash)[i].mtx);
|
|
mtx_destroy(&NFSD_VNET(nfsusernamehash)[i].mtx);
|
|
mtx_destroy(&NFSD_VNET(nfsgroupnamehash)[i].mtx);
|
|
mtx_destroy(&NFSD_VNET(nfsgrouphash)[i].mtx);
|
|
}
|
|
free(NFSD_VNET(nfsuserhash), M_NFSUSERGROUP);
|
|
free(NFSD_VNET(nfsusernamehash), M_NFSUSERGROUP);
|
|
free(NFSD_VNET(nfsgrouphash), M_NFSUSERGROUP);
|
|
free(NFSD_VNET(nfsgroupnamehash), M_NFSUSERGROUP);
|
|
free(NFSD_VNET(nfsrv_dnsname), M_NFSSTRING);
|
|
}
|
|
|
|
/*
|
|
* This function scans a byte string and checks for UTF-8 compliance.
|
|
* It returns 0 if it conforms and NFSERR_INVAL if not.
|
|
*/
|
|
int
|
|
nfsrv_checkutf8(u_int8_t *cp, int len)
|
|
{
|
|
u_int32_t val = 0x0;
|
|
int cnt = 0, gotd = 0, shift = 0;
|
|
u_int8_t byte;
|
|
static int utf8_shift[5] = { 7, 11, 16, 21, 26 };
|
|
int error = 0;
|
|
|
|
/*
|
|
* Here are what the variables are used for:
|
|
* val - the calculated value of a multibyte char, used to check
|
|
* that it was coded with the correct range
|
|
* cnt - the number of 10xxxxxx bytes to follow
|
|
* gotd - set for a char of Dxxx, so D800<->DFFF can be checked for
|
|
* shift - lower order bits of range (ie. "val >> shift" should
|
|
* not be 0, in other words, dividing by the lower bound
|
|
* of the range should get a non-zero value)
|
|
* byte - used to calculate cnt
|
|
*/
|
|
while (len > 0) {
|
|
if (cnt > 0) {
|
|
/* This handles the 10xxxxxx bytes */
|
|
if ((*cp & 0xc0) != 0x80 ||
|
|
(gotd && (*cp & 0x20))) {
|
|
error = NFSERR_INVAL;
|
|
goto out;
|
|
}
|
|
gotd = 0;
|
|
val <<= 6;
|
|
val |= (*cp & 0x3f);
|
|
cnt--;
|
|
if (cnt == 0 && (val >> shift) == 0x0) {
|
|
error = NFSERR_INVAL;
|
|
goto out;
|
|
}
|
|
} else if (*cp & 0x80) {
|
|
/* first byte of multi byte char */
|
|
byte = *cp;
|
|
while ((byte & 0x40) && cnt < 6) {
|
|
cnt++;
|
|
byte <<= 1;
|
|
}
|
|
if (cnt == 0 || cnt == 6) {
|
|
error = NFSERR_INVAL;
|
|
goto out;
|
|
}
|
|
val = (*cp & (0x3f >> cnt));
|
|
shift = utf8_shift[cnt - 1];
|
|
if (cnt == 2 && val == 0xd)
|
|
/* Check for the 0xd800-0xdfff case */
|
|
gotd = 1;
|
|
}
|
|
cp++;
|
|
len--;
|
|
}
|
|
if (cnt > 0)
|
|
error = NFSERR_INVAL;
|
|
|
|
out:
|
|
NFSEXITCODE(error);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Parse the xdr for an NFSv4 FsLocations attribute. Return two malloc'd
|
|
* strings, one with the root path in it and the other with the list of
|
|
* locations. The list is in the same format as is found in nfr_refs.
|
|
* It is a "," separated list of entries, where each of them is of the
|
|
* form <server>:<rootpath>. For example
|
|
* "nfsv4-test:/sub2,nfsv4-test2:/user/mnt,nfsv4-test2:/user/mnt2"
|
|
* The nilp argument is set to 1 for the special case of a null fs_root
|
|
* and an empty server list.
|
|
* It returns NFSERR_BADXDR, if the xdr can't be parsed and returns the
|
|
* number of xdr bytes parsed in sump.
|
|
*/
|
|
static int
|
|
nfsrv_getrefstr(struct nfsrv_descript *nd, u_char **fsrootp, u_char **srvp,
|
|
int *sump, int *nilp)
|
|
{
|
|
u_int32_t *tl;
|
|
u_char *cp = NULL, *cp2 = NULL, *cp3, *str;
|
|
int i, j, len, stringlen, cnt, slen, siz, xdrsum, error = 0, nsrv;
|
|
struct list {
|
|
SLIST_ENTRY(list) next;
|
|
int len;
|
|
u_char host[1];
|
|
} *lsp, *nlsp;
|
|
SLIST_HEAD(, list) head;
|
|
|
|
*fsrootp = NULL;
|
|
*srvp = NULL;
|
|
*nilp = 0;
|
|
|
|
/*
|
|
* Get the fs_root path and check for the special case of null path
|
|
* and 0 length server list.
|
|
*/
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
len = fxdr_unsigned(int, *tl);
|
|
if (len < 0 || len > 10240) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
if (len == 0) {
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
if (*tl != 0) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
*nilp = 1;
|
|
*sump = 2 * NFSX_UNSIGNED;
|
|
error = 0;
|
|
goto nfsmout;
|
|
}
|
|
cp = malloc(len + 1, M_NFSSTRING, M_WAITOK);
|
|
error = nfsrv_mtostr(nd, cp, len);
|
|
if (!error) {
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
cnt = fxdr_unsigned(int, *tl);
|
|
if (cnt <= 0)
|
|
error = NFSERR_BADXDR;
|
|
}
|
|
if (error)
|
|
goto nfsmout;
|
|
|
|
/*
|
|
* Now, loop through the location list and make up the srvlist.
|
|
*/
|
|
xdrsum = (2 * NFSX_UNSIGNED) + NFSM_RNDUP(len);
|
|
cp2 = cp3 = malloc(1024, M_NFSSTRING, M_WAITOK);
|
|
slen = 1024;
|
|
siz = 0;
|
|
for (i = 0; i < cnt; i++) {
|
|
SLIST_INIT(&head);
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
nsrv = fxdr_unsigned(int, *tl);
|
|
if (nsrv <= 0) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
|
|
/*
|
|
* Handle the first server by putting it in the srvstr.
|
|
*/
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
len = fxdr_unsigned(int, *tl);
|
|
if (len <= 0 || len > 1024) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
nfsrv_refstrbigenough(siz + len + 3, &cp2, &cp3, &slen);
|
|
if (cp3 != cp2) {
|
|
*cp3++ = ',';
|
|
siz++;
|
|
}
|
|
error = nfsrv_mtostr(nd, cp3, len);
|
|
if (error)
|
|
goto nfsmout;
|
|
cp3 += len;
|
|
*cp3++ = ':';
|
|
siz += (len + 1);
|
|
xdrsum += (2 * NFSX_UNSIGNED) + NFSM_RNDUP(len);
|
|
for (j = 1; j < nsrv; j++) {
|
|
/*
|
|
* Yuck, put them in an slist and process them later.
|
|
*/
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
len = fxdr_unsigned(int, *tl);
|
|
if (len <= 0 || len > 1024) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
lsp = (struct list *)malloc(sizeof (struct list)
|
|
+ len, M_TEMP, M_WAITOK);
|
|
error = nfsrv_mtostr(nd, lsp->host, len);
|
|
if (error)
|
|
goto nfsmout;
|
|
xdrsum += NFSX_UNSIGNED + NFSM_RNDUP(len);
|
|
lsp->len = len;
|
|
SLIST_INSERT_HEAD(&head, lsp, next);
|
|
}
|
|
|
|
/*
|
|
* Finally, we can get the path.
|
|
*/
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
len = fxdr_unsigned(int, *tl);
|
|
if (len <= 0 || len > 1024) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
}
|
|
nfsrv_refstrbigenough(siz + len + 1, &cp2, &cp3, &slen);
|
|
error = nfsrv_mtostr(nd, cp3, len);
|
|
if (error)
|
|
goto nfsmout;
|
|
xdrsum += NFSX_UNSIGNED + NFSM_RNDUP(len);
|
|
str = cp3;
|
|
stringlen = len;
|
|
cp3 += len;
|
|
siz += len;
|
|
SLIST_FOREACH_SAFE(lsp, &head, next, nlsp) {
|
|
nfsrv_refstrbigenough(siz + lsp->len + stringlen + 3,
|
|
&cp2, &cp3, &slen);
|
|
*cp3++ = ',';
|
|
NFSBCOPY(lsp->host, cp3, lsp->len);
|
|
cp3 += lsp->len;
|
|
*cp3++ = ':';
|
|
NFSBCOPY(str, cp3, stringlen);
|
|
cp3 += stringlen;
|
|
*cp3 = '\0';
|
|
siz += (lsp->len + stringlen + 2);
|
|
free(lsp, M_TEMP);
|
|
}
|
|
}
|
|
*fsrootp = cp;
|
|
*srvp = cp2;
|
|
*sump = xdrsum;
|
|
NFSEXITCODE2(0, nd);
|
|
return (0);
|
|
nfsmout:
|
|
if (cp != NULL)
|
|
free(cp, M_NFSSTRING);
|
|
if (cp2 != NULL)
|
|
free(cp2, M_NFSSTRING);
|
|
NFSEXITCODE2(error, nd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Make the malloc'd space large enough. This is a pain, but the xdr
|
|
* doesn't set an upper bound on the side, so...
|
|
*/
|
|
static void
|
|
nfsrv_refstrbigenough(int siz, u_char **cpp, u_char **cpp2, int *slenp)
|
|
{
|
|
u_char *cp;
|
|
int i;
|
|
|
|
if (siz <= *slenp)
|
|
return;
|
|
cp = malloc(siz + 1024, M_NFSSTRING, M_WAITOK);
|
|
NFSBCOPY(*cpp, cp, *slenp);
|
|
free(*cpp, M_NFSSTRING);
|
|
i = *cpp2 - *cpp;
|
|
*cpp = cp;
|
|
*cpp2 = cp + i;
|
|
*slenp = siz + 1024;
|
|
}
|
|
|
|
/*
|
|
* Initialize the reply header data structures.
|
|
*/
|
|
void
|
|
nfsrvd_rephead(struct nfsrv_descript *nd)
|
|
{
|
|
struct mbuf *mreq;
|
|
|
|
if ((nd->nd_flag & ND_EXTPG) != 0) {
|
|
mreq = mb_alloc_ext_plus_pages(PAGE_SIZE, M_WAITOK);
|
|
nd->nd_mreq = nd->nd_mb = mreq;
|
|
nd->nd_bpos = (char *)(void *)
|
|
PHYS_TO_DMAP(mreq->m_epg_pa[0]);
|
|
nd->nd_bextpg = 0;
|
|
nd->nd_bextpgsiz = PAGE_SIZE;
|
|
} else {
|
|
/*
|
|
* If this is a big reply, use a cluster.
|
|
*/
|
|
if ((nd->nd_flag & ND_GSSINITREPLY) == 0 &&
|
|
nfs_bigreply[nd->nd_procnum]) {
|
|
NFSMCLGET(mreq, M_WAITOK);
|
|
nd->nd_mreq = mreq;
|
|
nd->nd_mb = mreq;
|
|
} else {
|
|
NFSMGET(mreq);
|
|
nd->nd_mreq = mreq;
|
|
nd->nd_mb = mreq;
|
|
}
|
|
nd->nd_bpos = mtod(mreq, char *);
|
|
mreq->m_len = 0;
|
|
}
|
|
|
|
if ((nd->nd_flag & ND_GSSINITREPLY) == 0)
|
|
NFSM_BUILD(nd->nd_errp, int *, NFSX_UNSIGNED);
|
|
}
|
|
|
|
/*
|
|
* Lock a socket against others.
|
|
* Currently used to serialize connect/disconnect attempts.
|
|
*/
|
|
int
|
|
newnfs_sndlock(int *flagp)
|
|
{
|
|
struct timespec ts;
|
|
|
|
NFSLOCKSOCK();
|
|
while (*flagp & NFSR_SNDLOCK) {
|
|
*flagp |= NFSR_WANTSND;
|
|
ts.tv_sec = 0;
|
|
ts.tv_nsec = 0;
|
|
(void) nfsmsleep((caddr_t)flagp, NFSSOCKMUTEXPTR,
|
|
PZERO - 1, "nfsndlck", &ts);
|
|
}
|
|
*flagp |= NFSR_SNDLOCK;
|
|
NFSUNLOCKSOCK();
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Unlock the stream socket for others.
|
|
*/
|
|
void
|
|
newnfs_sndunlock(int *flagp)
|
|
{
|
|
|
|
NFSLOCKSOCK();
|
|
if ((*flagp & NFSR_SNDLOCK) == 0)
|
|
panic("nfs sndunlock");
|
|
*flagp &= ~NFSR_SNDLOCK;
|
|
if (*flagp & NFSR_WANTSND) {
|
|
*flagp &= ~NFSR_WANTSND;
|
|
wakeup((caddr_t)flagp);
|
|
}
|
|
NFSUNLOCKSOCK();
|
|
}
|
|
|
|
int
|
|
nfsv4_getipaddr(struct nfsrv_descript *nd, struct sockaddr_in *sin,
|
|
struct sockaddr_in6 *sin6, sa_family_t *saf, int *isudp)
|
|
{
|
|
struct in_addr saddr;
|
|
uint32_t portnum, *tl;
|
|
int i, j, k;
|
|
sa_family_t af = AF_UNSPEC;
|
|
char addr[64], protocol[5], *cp;
|
|
int cantparse = 0, error = 0;
|
|
uint16_t portv;
|
|
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
i = fxdr_unsigned(int, *tl);
|
|
if (i >= 3 && i <= 4) {
|
|
error = nfsrv_mtostr(nd, protocol, i);
|
|
if (error)
|
|
goto nfsmout;
|
|
if (strcmp(protocol, "tcp") == 0) {
|
|
af = AF_INET;
|
|
*isudp = 0;
|
|
} else if (strcmp(protocol, "udp") == 0) {
|
|
af = AF_INET;
|
|
*isudp = 1;
|
|
} else if (strcmp(protocol, "tcp6") == 0) {
|
|
af = AF_INET6;
|
|
*isudp = 0;
|
|
} else if (strcmp(protocol, "udp6") == 0) {
|
|
af = AF_INET6;
|
|
*isudp = 1;
|
|
} else
|
|
cantparse = 1;
|
|
} else {
|
|
cantparse = 1;
|
|
if (i > 0) {
|
|
error = nfsm_advance(nd, NFSM_RNDUP(i), -1);
|
|
if (error)
|
|
goto nfsmout;
|
|
}
|
|
}
|
|
NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED);
|
|
i = fxdr_unsigned(int, *tl);
|
|
if (i < 0) {
|
|
error = NFSERR_BADXDR;
|
|
goto nfsmout;
|
|
} else if (cantparse == 0 && i >= 11 && i < 64) {
|
|
/*
|
|
* The shortest address is 11chars and the longest is < 64.
|
|
*/
|
|
error = nfsrv_mtostr(nd, addr, i);
|
|
if (error)
|
|
goto nfsmout;
|
|
|
|
/* Find the port# at the end and extract that. */
|
|
i = strlen(addr);
|
|
k = 0;
|
|
cp = &addr[i - 1];
|
|
/* Count back two '.'s from end to get port# field. */
|
|
for (j = 0; j < i; j++) {
|
|
if (*cp == '.') {
|
|
k++;
|
|
if (k == 2)
|
|
break;
|
|
}
|
|
cp--;
|
|
}
|
|
if (k == 2) {
|
|
/*
|
|
* The NFSv4 port# is appended as .N.N, where N is
|
|
* a decimal # in the range 0-255, just like an inet4
|
|
* address. Cheat and use inet_aton(), which will
|
|
* return a Class A address and then shift the high
|
|
* order 8bits over to convert it to the port#.
|
|
*/
|
|
*cp++ = '\0';
|
|
if (inet_aton(cp, &saddr) == 1) {
|
|
portnum = ntohl(saddr.s_addr);
|
|
portv = (uint16_t)((portnum >> 16) |
|
|
(portnum & 0xff));
|
|
} else
|
|
cantparse = 1;
|
|
} else
|
|
cantparse = 1;
|
|
if (cantparse == 0) {
|
|
if (af == AF_INET) {
|
|
if (inet_pton(af, addr, &sin->sin_addr) == 1) {
|
|
sin->sin_len = sizeof(*sin);
|
|
sin->sin_family = AF_INET;
|
|
sin->sin_port = htons(portv);
|
|
*saf = af;
|
|
return (0);
|
|
}
|
|
} else {
|
|
if (inet_pton(af, addr, &sin6->sin6_addr)
|
|
== 1) {
|
|
sin6->sin6_len = sizeof(*sin6);
|
|
sin6->sin6_family = AF_INET6;
|
|
sin6->sin6_port = htons(portv);
|
|
*saf = af;
|
|
return (0);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (i > 0) {
|
|
error = nfsm_advance(nd, NFSM_RNDUP(i), -1);
|
|
if (error)
|
|
goto nfsmout;
|
|
}
|
|
}
|
|
error = EPERM;
|
|
nfsmout:
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Handle an NFSv4.1 Sequence request for the session.
|
|
* If reply != NULL, use it to return the cached reply, as required.
|
|
* The client gets a cached reply via this call for callbacks, however the
|
|
* server gets a cached reply via the nfsv4_seqsess_cacherep() call.
|
|
*/
|
|
int
|
|
nfsv4_seqsession(uint32_t seqid, uint32_t slotid, uint32_t highslot,
|
|
struct nfsslot *slots, struct mbuf **reply, uint16_t maxslot)
|
|
{
|
|
struct mbuf *m;
|
|
int error;
|
|
|
|
error = 0;
|
|
if (reply != NULL)
|
|
*reply = NULL;
|
|
if (slotid > maxslot)
|
|
return (NFSERR_BADSLOT);
|
|
if (seqid == slots[slotid].nfssl_seq) {
|
|
/* A retry. */
|
|
if (slots[slotid].nfssl_inprog != 0)
|
|
error = NFSERR_DELAY;
|
|
else if (slots[slotid].nfssl_reply != NULL) {
|
|
if (reply != NULL) {
|
|
m = m_copym(slots[slotid].nfssl_reply, 0,
|
|
M_COPYALL, M_NOWAIT);
|
|
if (m != NULL)
|
|
*reply = m;
|
|
else {
|
|
*reply = slots[slotid].nfssl_reply;
|
|
slots[slotid].nfssl_reply = NULL;
|
|
}
|
|
}
|
|
slots[slotid].nfssl_inprog = 1;
|
|
error = NFSERR_REPLYFROMCACHE;
|
|
} else
|
|
/* No reply cached, so just do it. */
|
|
slots[slotid].nfssl_inprog = 1;
|
|
} else if ((slots[slotid].nfssl_seq + 1) == seqid) {
|
|
if (slots[slotid].nfssl_reply != NULL)
|
|
m_freem(slots[slotid].nfssl_reply);
|
|
slots[slotid].nfssl_reply = NULL;
|
|
slots[slotid].nfssl_inprog = 1;
|
|
slots[slotid].nfssl_seq++;
|
|
} else
|
|
error = NFSERR_SEQMISORDERED;
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Cache this reply for the slot.
|
|
* Use the "rep" argument to return the cached reply if repstat is set to
|
|
* NFSERR_REPLYFROMCACHE. The client never sets repstat to this value.
|
|
*/
|
|
void
|
|
nfsv4_seqsess_cacherep(uint32_t slotid, struct nfsslot *slots, int repstat,
|
|
struct mbuf **rep)
|
|
{
|
|
struct mbuf *m;
|
|
|
|
if (repstat == NFSERR_REPLYFROMCACHE) {
|
|
if (slots[slotid].nfssl_reply != NULL) {
|
|
/*
|
|
* We cannot sleep here, but copy will usually
|
|
* succeed.
|
|
*/
|
|
m = m_copym(slots[slotid].nfssl_reply, 0, M_COPYALL,
|
|
M_NOWAIT);
|
|
if (m != NULL)
|
|
*rep = m;
|
|
else {
|
|
/*
|
|
* Multiple retries would be extremely rare,
|
|
* so using the cached reply will likely
|
|
* be ok.
|
|
*/
|
|
*rep = slots[slotid].nfssl_reply;
|
|
slots[slotid].nfssl_reply = NULL;
|
|
}
|
|
} else
|
|
*rep = NULL;
|
|
} else {
|
|
if (slots[slotid].nfssl_reply != NULL)
|
|
m_freem(slots[slotid].nfssl_reply);
|
|
slots[slotid].nfssl_reply = *rep;
|
|
}
|
|
slots[slotid].nfssl_inprog = 0;
|
|
}
|
|
|
|
/*
|
|
* Generate the xdr for an NFSv4.1 Sequence Operation.
|
|
*/
|
|
void
|
|
nfsv4_setsequence(struct nfsmount *nmp, struct nfsrv_descript *nd,
|
|
struct nfsclsession *sep, int dont_replycache, struct ucred *cred)
|
|
{
|
|
uint32_t *tl, slotseq = 0;
|
|
int error, maxslot, slotpos;
|
|
uint8_t sessionid[NFSX_V4SESSIONID];
|
|
|
|
if (cred != NULL) {
|
|
error = nfsv4_sequencelookup(nmp, sep, &slotpos, &maxslot,
|
|
&slotseq, sessionid, false);
|
|
if (error == NFSERR_SEQMISORDERED) {
|
|
/* If all slots are bad, Destroy the session. */
|
|
nfsrpc_destroysession(nmp, sep, cred, curthread);
|
|
}
|
|
} else
|
|
error = nfsv4_sequencelookup(nmp, sep, &slotpos, &maxslot,
|
|
&slotseq, sessionid, true);
|
|
nd->nd_maxreq = sep->nfsess_maxreq;
|
|
nd->nd_maxresp = sep->nfsess_maxresp;
|
|
|
|
/* Build the Sequence arguments. */
|
|
NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID + 4 * NFSX_UNSIGNED);
|
|
nd->nd_sequence = tl;
|
|
bcopy(sessionid, tl, NFSX_V4SESSIONID);
|
|
tl += NFSX_V4SESSIONID / NFSX_UNSIGNED;
|
|
nd->nd_slotseq = tl;
|
|
if (error == 0) {
|
|
nd->nd_flag |= ND_HASSLOTID;
|
|
nd->nd_slotid = slotpos;
|
|
*tl++ = txdr_unsigned(slotseq);
|
|
*tl++ = txdr_unsigned(slotpos);
|
|
*tl++ = txdr_unsigned(maxslot);
|
|
if (dont_replycache == 0)
|
|
*tl = newnfs_true;
|
|
else
|
|
*tl = newnfs_false;
|
|
} else {
|
|
/*
|
|
* There are two errors and the rest of the session can
|
|
* just be zeros.
|
|
* NFSERR_BADSESSION: This bad session should just generate
|
|
* the same error again when the RPC is retried.
|
|
* ESTALE: A forced dismount is in progress and will cause the
|
|
* RPC to fail later.
|
|
*/
|
|
*tl++ = 0;
|
|
*tl++ = 0;
|
|
*tl++ = 0;
|
|
*tl = 0;
|
|
}
|
|
nd->nd_flag |= ND_HASSEQUENCE;
|
|
}
|
|
|
|
/*
|
|
* If fnd_init is true, ignore the badslots.
|
|
* If fnd_init is false, return NFSERR_SEQMISORDERED if all slots are bad.
|
|
*/
|
|
int
|
|
nfsv4_sequencelookup(struct nfsmount *nmp, struct nfsclsession *sep,
|
|
int *slotposp, int *maxslotp, uint32_t *slotseqp, uint8_t *sessionid,
|
|
bool fnd_init)
|
|
{
|
|
int i, maxslot, slotpos;
|
|
uint64_t bitval;
|
|
bool fnd_ok;
|
|
|
|
/* Find an unused slot. */
|
|
slotpos = -1;
|
|
maxslot = -1;
|
|
mtx_lock(&sep->nfsess_mtx);
|
|
do {
|
|
if (nmp != NULL && sep->nfsess_defunct != 0) {
|
|
/* Just return the bad session. */
|
|
bcopy(sep->nfsess_sessionid, sessionid,
|
|
NFSX_V4SESSIONID);
|
|
mtx_unlock(&sep->nfsess_mtx);
|
|
return (NFSERR_BADSESSION);
|
|
}
|
|
fnd_ok = fnd_init;
|
|
bitval = 1;
|
|
for (i = 0; i < sep->nfsess_foreslots; i++) {
|
|
if ((bitval & sep->nfsess_badslots) == 0 || fnd_init) {
|
|
fnd_ok = true;
|
|
if ((bitval & sep->nfsess_slots) == 0) {
|
|
slotpos = i;
|
|
sep->nfsess_slots |= bitval;
|
|
sep->nfsess_slotseq[i]++;
|
|
*slotseqp = sep->nfsess_slotseq[i];
|
|
break;
|
|
}
|
|
}
|
|
bitval <<= 1;
|
|
}
|
|
if (slotpos == -1) {
|
|
/*
|
|
* If a forced dismount is in progress, just return.
|
|
* This RPC attempt will fail when it calls
|
|
* newnfs_request().
|
|
*/
|
|
if (nmp != NULL && NFSCL_FORCEDISM(nmp->nm_mountp)) {
|
|
mtx_unlock(&sep->nfsess_mtx);
|
|
return (ESTALE);
|
|
}
|
|
/* Wake up once/sec, to check for a forced dismount. */
|
|
if (fnd_ok)
|
|
mtx_sleep(&sep->nfsess_slots, &sep->nfsess_mtx,
|
|
PZERO, "nfsclseq", hz);
|
|
}
|
|
} while (slotpos == -1 && fnd_ok);
|
|
/*
|
|
* If all slots are bad, just return slot 0 and NFSERR_SEQMISORDERED.
|
|
* The caller will do a DestroySession, so that the session's use
|
|
* will get a NFSERR_BADSESSION reply from the server.
|
|
*/
|
|
if (!fnd_ok)
|
|
slotpos = 0;
|
|
|
|
/* Now, find the highest slot in use. (nfsc_slots is 64bits) */
|
|
bitval = 1;
|
|
for (i = 0; i < 64; i++) {
|
|
if ((bitval & sep->nfsess_slots) != 0)
|
|
maxslot = i;
|
|
bitval <<= 1;
|
|
}
|
|
bcopy(sep->nfsess_sessionid, sessionid, NFSX_V4SESSIONID);
|
|
mtx_unlock(&sep->nfsess_mtx);
|
|
*slotposp = slotpos;
|
|
*maxslotp = maxslot;
|
|
|
|
if (!fnd_ok)
|
|
return (NFSERR_SEQMISORDERED);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Free a session slot.
|
|
*/
|
|
void
|
|
nfsv4_freeslot(struct nfsclsession *sep, int slot, bool resetseq)
|
|
{
|
|
uint64_t bitval;
|
|
|
|
bitval = 1;
|
|
if (slot > 0)
|
|
bitval <<= slot;
|
|
mtx_lock(&sep->nfsess_mtx);
|
|
if (resetseq)
|
|
sep->nfsess_slotseq[slot]--;
|
|
if ((bitval & sep->nfsess_slots) == 0)
|
|
printf("freeing free slot!!\n");
|
|
sep->nfsess_slots &= ~bitval;
|
|
wakeup(&sep->nfsess_slots);
|
|
mtx_unlock(&sep->nfsess_mtx);
|
|
}
|
|
|
|
/*
|
|
* Search for a matching pnfsd DS, based on the nmp arg.
|
|
* Return one if found, NULL otherwise.
|
|
*/
|
|
struct nfsdevice *
|
|
nfsv4_findmirror(struct nfsmount *nmp)
|
|
{
|
|
struct nfsdevice *ds;
|
|
|
|
mtx_assert(NFSDDSMUTEXPTR, MA_OWNED);
|
|
/*
|
|
* Search the DS server list for a match with nmp.
|
|
*/
|
|
if (nfsrv_devidcnt == 0)
|
|
return (NULL);
|
|
TAILQ_FOREACH(ds, &nfsrv_devidhead, nfsdev_list) {
|
|
if (ds->nfsdev_nmp == nmp) {
|
|
NFSCL_DEBUG(4, "nfsv4_findmirror: fnd main ds\n");
|
|
break;
|
|
}
|
|
}
|
|
return (ds);
|
|
}
|
|
|
|
/*
|
|
* Fill in the fields of "struct nfsrv_descript".
|
|
*/
|
|
void
|
|
nfsm_set(struct nfsrv_descript *nd, u_int offs)
|
|
{
|
|
struct mbuf *m;
|
|
int rlen;
|
|
|
|
m = nd->nd_mb;
|
|
if ((m->m_flags & M_EXTPG) != 0) {
|
|
nd->nd_bextpg = 0;
|
|
while (offs > 0) {
|
|
if (nd->nd_bextpg == 0)
|
|
rlen = m_epg_pagelen(m, 0, m->m_epg_1st_off);
|
|
else
|
|
rlen = m_epg_pagelen(m, nd->nd_bextpg, 0);
|
|
if (offs <= rlen)
|
|
break;
|
|
offs -= rlen;
|
|
nd->nd_bextpg++;
|
|
if (nd->nd_bextpg == m->m_epg_npgs) {
|
|
printf("nfsm_set: build offs "
|
|
"out of range\n");
|
|
nd->nd_bextpg--;
|
|
break;
|
|
}
|
|
}
|
|
nd->nd_bpos = (char *)(void *)
|
|
PHYS_TO_DMAP(m->m_epg_pa[nd->nd_bextpg]);
|
|
if (nd->nd_bextpg == 0)
|
|
nd->nd_bpos += m->m_epg_1st_off;
|
|
if (offs > 0) {
|
|
nd->nd_bpos += offs;
|
|
nd->nd_bextpgsiz = rlen - offs;
|
|
} else if (nd->nd_bextpg == 0)
|
|
nd->nd_bextpgsiz = PAGE_SIZE - m->m_epg_1st_off;
|
|
else
|
|
nd->nd_bextpgsiz = PAGE_SIZE;
|
|
} else
|
|
nd->nd_bpos = mtod(m, char *) + offs;
|
|
}
|
|
|
|
/*
|
|
* Grow a ext_pgs mbuf list. Either allocate another page or add
|
|
* an mbuf to the list.
|
|
*/
|
|
struct mbuf *
|
|
nfsm_add_ext_pgs(struct mbuf *m, int maxextsiz, int *bextpg)
|
|
{
|
|
struct mbuf *mp;
|
|
vm_page_t pg;
|
|
|
|
if ((m->m_epg_npgs + 1) * PAGE_SIZE > maxextsiz) {
|
|
mp = mb_alloc_ext_plus_pages(PAGE_SIZE, M_WAITOK);
|
|
*bextpg = 0;
|
|
m->m_next = mp;
|
|
} else {
|
|
pg = vm_page_alloc_noobj(VM_ALLOC_WAITOK | VM_ALLOC_NODUMP |
|
|
VM_ALLOC_WIRED);
|
|
m->m_epg_pa[m->m_epg_npgs] = VM_PAGE_TO_PHYS(pg);
|
|
*bextpg = m->m_epg_npgs;
|
|
m->m_epg_npgs++;
|
|
m->m_epg_last_len = 0;
|
|
mp = m;
|
|
}
|
|
return (mp);
|
|
}
|
|
|
|
/*
|
|
* Do the NFSv4.1 Destroy Session.
|
|
*/
|
|
int
|
|
nfsrpc_destroysession(struct nfsmount *nmp, struct nfsclsession *tsep,
|
|
struct ucred *cred, NFSPROC_T *p)
|
|
{
|
|
uint32_t *tl;
|
|
struct nfsrv_descript nfsd;
|
|
struct nfsrv_descript *nd = &nfsd;
|
|
int error;
|
|
|
|
if (tsep == NULL)
|
|
tsep = nfsmnt_mdssession(nmp);
|
|
if (tsep == NULL)
|
|
return (0);
|
|
nfscl_reqstart(nd, NFSPROC_DESTROYSESSION, nmp, NULL, 0, NULL, NULL, 0,
|
|
0, NULL);
|
|
NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID);
|
|
bcopy(tsep->nfsess_sessionid, tl, NFSX_V4SESSIONID);
|
|
nd->nd_flag |= ND_USEGSSNAME;
|
|
error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred,
|
|
NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL);
|
|
if (error != 0)
|
|
return (error);
|
|
error = nd->nd_repstat;
|
|
m_freem(nd->nd_mrep);
|
|
return (error);
|
|
}
|