| author | jpk |
| Fri, 24 Mar 2006 12:29:20 -0800 | |
| changeset 1676 | 37f4a3e2bd99 |
| parent 1146 | c3555cdf52c2 |
| child 2035 | a29bc457bcb9 |
| permissions | -rw-r--r-- |
| 0 | 1 |
/* |
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* CDDL HEADER START |
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* |
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* The contents of this file are subject to the terms of the |
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* Common Development and Distribution License (the "License"). |
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* You may not use this file except in compliance with the License. |
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* |
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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* or http://www.opensolaris.org/os/licensing. |
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* See the License for the specific language governing permissions |
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* and limitations under the License. |
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* |
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* When distributing Covered Code, include this CDDL HEADER in each |
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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* If applicable, add the following below this CDDL HEADER, with the |
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* fields enclosed by brackets "[]" replaced with your own identifying |
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* information: Portions Copyright [yyyy] [name of copyright owner] |
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* |
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* CDDL HEADER END |
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*/ |
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/* |
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* Copyright 2006 Sun Microsystems, Inc. All rights reserved. |
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* Use is subject to license terms. |
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*/ |
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||
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/* |
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* Copyright (c) 1983,1984,1985,1986,1987,1988,1989 AT&T. |
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* All Rights Reserved |
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*/ |
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#pragma ident "%Z%%M% %I% %E% SMI" |
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#include <sys/param.h> |
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#include <sys/types.h> |
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#include <sys/systm.h> |
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#include <sys/cred.h> |
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#include <sys/buf.h> |
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#include <sys/vfs.h> |
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#include <sys/vnode.h> |
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#include <sys/uio.h> |
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#include <sys/errno.h> |
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#include <sys/sysmacros.h> |
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#include <sys/statvfs.h> |
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#include <sys/kmem.h> |
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#include <sys/dirent.h> |
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#include <sys/cmn_err.h> |
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#include <sys/debug.h> |
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#include <sys/systeminfo.h> |
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#include <sys/flock.h> |
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#include <sys/pathname.h> |
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#include <sys/nbmlock.h> |
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#include <sys/share.h> |
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#include <sys/atomic.h> |
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#include <sys/policy.h> |
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#include <sys/fem.h> |
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#include <sys/sdt.h> |
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#include <rpc/types.h> |
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#include <rpc/auth.h> |
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#include <rpc/rpcsec_gss.h> |
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#include <rpc/svc.h> |
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#include <nfs/nfs.h> |
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#include <nfs/export.h> |
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#include <nfs/lm.h> |
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#include <nfs/nfs4.h> |
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#include <sys/strsubr.h> |
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#include <sys/strsun.h> |
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#include <inet/common.h> |
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#include <inet/ip.h> |
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#include <inet/ip6.h> |
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#include <sys/tsol/label.h> |
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#include <sys/tsol/tndb.h> |
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#define RFS4_MAXLOCK_TRIES 4 /* Try to get the lock this many times */ |
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static int rfs4_maxlock_tries = RFS4_MAXLOCK_TRIES; |
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#define RFS4_LOCK_DELAY 10 /* Milliseconds */ |
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static clock_t rfs4_lock_delay = RFS4_LOCK_DELAY; |
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/* End of Tunables */ |
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/* |
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* Used to bump the stateid4.seqid value and show changes in the stateid |
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*/ |
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#define next_stateid(sp) (++(sp)->bits.chgseq) |
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/* |
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* RFS4_MINLEN_ENTRY4: XDR-encoded size of smallest possible dirent. |
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* This is used to return NFS4ERR_TOOSMALL when clients specify |
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* maxcount that isn't large enough to hold the smallest possible |
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* XDR encoded dirent. |
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* |
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* sizeof cookie (8 bytes) + |
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* sizeof name_len (4 bytes) + |
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* sizeof smallest (padded) name (4 bytes) + |
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* sizeof bitmap4_len (12 bytes) + NOTE: we always encode len=2 bm4 |
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* sizeof attrlist4_len (4 bytes) + |
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* sizeof next boolean (4 bytes) |
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* |
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* RFS4_MINLEN_RDDIR4: XDR-encoded size of READDIR op reply containing |
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* the smallest possible entry4 (assumes no attrs requested). |
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* sizeof nfsstat4 (4 bytes) + |
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* sizeof verifier4 (8 bytes) + |
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* sizeof entry4list bool (4 bytes) + |
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* sizeof entry4 (36 bytes) + |
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* sizeof eof bool (4 bytes) |
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* |
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* RFS4_MINLEN_RDDIR_BUF: minimum length of buffer server will provide to |
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* VOP_READDIR. Its value is the size of the maximum possible dirent |
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* for solaris. The DIRENT64_RECLEN macro returns the size of dirent |
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* required for a given name length. MAXNAMELEN is the maximum |
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* filename length allowed in Solaris. The first two DIRENT64_RECLEN() |
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* macros are to allow for . and .. entries -- just a minor tweak to try |
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* and guarantee that buffer we give to VOP_READDIR will be large enough |
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* to hold ., .., and the largest possible solaris dirent64. |
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*/ |
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#define RFS4_MINLEN_ENTRY4 36 |
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#define RFS4_MINLEN_RDDIR4 (4 + NFS4_VERIFIER_SIZE + 4 + RFS4_MINLEN_ENTRY4 + 4) |
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#define RFS4_MINLEN_RDDIR_BUF \ |
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(DIRENT64_RECLEN(1) + DIRENT64_RECLEN(2) + DIRENT64_RECLEN(MAXNAMELEN)) |
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/* |
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* It would be better to pad to 4 bytes since that's what XDR would do, |
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* but the dirents UFS gives us are already padded to 8, so just take |
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* what we're given. Dircount is only a hint anyway. Currently the |
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* solaris kernel is ASCII only, so there's no point in calling the |
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* UTF8 functions. |
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* |
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* dirent64: named padded to provide 8 byte struct alignment |
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* d_ino(8) + d_off(8) + d_reclen(2) + d_name(namelen + null(1) + pad) |
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* |
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* cookie: uint64_t + utf8namelen: uint_t + utf8name padded to 8 bytes |
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* |
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*/ |
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#define DIRENT64_TO_DIRCOUNT(dp) \ |
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(3 * BYTES_PER_XDR_UNIT + DIRENT64_NAMELEN((dp)->d_reclen)) |
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/* |
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* types of label comparison |
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*/ |
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#define EQUALITY_CHECK 0 |
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#define DOMINANCE_CHECK 1 |
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time_t rfs4_start_time; /* Initialized in rfs4_srvrinit */ |
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static sysid_t lockt_sysid; /* dummy sysid for all LOCKT calls */ |
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u_longlong_t nfs4_srv_caller_id; |
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verifier4 Write4verf; |
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verifier4 Readdir4verf; |
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void rfs4_init_compound_state(struct compound_state *); |
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static void nullfree(caddr_t); |
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static void rfs4_op_inval(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_access(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_close(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_commit(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_create(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_create_free(nfs_resop4 *resop); |
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static void rfs4_op_delegreturn(nfs_argop4 *, nfs_resop4 *, |
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struct svc_req *, struct compound_state *); |
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static void rfs4_op_getattr(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_getattr_free(nfs_resop4 *); |
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static void rfs4_op_getfh(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_getfh_free(nfs_resop4 *); |
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static void rfs4_op_illegal(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_link(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_lock(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void lock_denied_free(nfs_resop4 *); |
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static void rfs4_op_locku(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_lockt(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_lookup(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_lookupp(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_openattr(nfs_argop4 *argop, nfs_resop4 *resop, |
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struct svc_req *req, struct compound_state *cs); |
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static void rfs4_op_nverify(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_open(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_open_confirm(nfs_argop4 *, nfs_resop4 *, |
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struct svc_req *, struct compound_state *); |
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static void rfs4_op_open_downgrade(nfs_argop4 *, nfs_resop4 *, |
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struct svc_req *, struct compound_state *); |
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static void rfs4_op_putfh(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_putpubfh(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_putrootfh(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_read(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_read_free(nfs_resop4 *); |
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static void rfs4_op_readdir_free(nfs_resop4 *resop); |
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static void rfs4_op_readlink(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_readlink_free(nfs_resop4 *); |
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static void rfs4_op_release_lockowner(nfs_argop4 *, nfs_resop4 *, |
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struct svc_req *, struct compound_state *); |
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static void rfs4_op_remove(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_rename(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_renew(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_restorefh(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_savefh(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_setattr(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_verify(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_write(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_setclientid(nfs_argop4 *, nfs_resop4 *, |
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struct svc_req *, struct compound_state *); |
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static void rfs4_op_setclientid_confirm(nfs_argop4 *, nfs_resop4 *, |
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struct svc_req *req, struct compound_state *); |
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static void rfs4_op_secinfo(nfs_argop4 *, nfs_resop4 *, struct svc_req *, |
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struct compound_state *); |
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static void rfs4_op_secinfo_free(nfs_resop4 *); |
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static nfsstat4 check_open_access(uint32_t, |
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struct compound_state *, struct svc_req *); |
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nfsstat4 rfs4_client_sysid(rfs4_client_t *, sysid_t *); |
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static int vop_shrlock(vnode_t *, int, struct shrlock *, int); |
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static int rfs4_shrlock(rfs4_state_t *, int); |
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static int rfs4_share(rfs4_state_t *); |
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void rfs4_ss_clid(rfs4_client_t *, struct svc_req *); |
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/* |
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* translation table for attrs |
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*/ |
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struct nfs4_ntov_table {
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union nfs4_attr_u *na; |
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uint8_t amap[NFS4_MAXNUM_ATTRS]; |
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int attrcnt; |
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bool_t vfsstat; |
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}; |
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static void nfs4_ntov_table_init(struct nfs4_ntov_table *ntovp); |
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static void nfs4_ntov_table_free(struct nfs4_ntov_table *ntovp, |
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struct nfs4_svgetit_arg *sargp); |
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static nfsstat4 do_rfs4_set_attrs(bitmap4 *resp, fattr4 *fattrp, |
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struct compound_state *cs, struct nfs4_svgetit_arg *sargp, |
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struct nfs4_ntov_table *ntovp, nfs4_attr_cmd_t cmd); |
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fem_t *deleg_rdops; |
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fem_t *deleg_wrops; |
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rfs4_servinst_t *rfs4_cur_servinst = NULL; /* current server instance */ |
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kmutex_t rfs4_servinst_lock; /* protects linked list */ |
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int rfs4_seen_first_compound; /* set first time we see one */ |
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#ifdef DEBUG |
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int rfs4_servinst_debug = 0; |
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#endif |
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/* |
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* NFS4 op dispatch table |
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*/ |
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struct rfsv4disp {
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void (*dis_proc)(); /* proc to call */ |
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void (*dis_resfree)(); /* frees space allocated by proc */ |
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int dis_flags; /* RPC_IDEMPOTENT, etc... */ |
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}; |
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static struct rfsv4disp rfsv4disptab[] = {
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/* |
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* NFS VERSION 4 |
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*/ |
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/* RFS_NULL = 0 */ |
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{rfs4_op_illegal, nullfree, 0},
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/* UNUSED = 1 */ |
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{rfs4_op_illegal, nullfree, 0},
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/* UNUSED = 2 */ |
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{rfs4_op_illegal, nullfree, 0},
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/* OP_ACCESS = 3 */ |
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{rfs4_op_access, nullfree, RPC_IDEMPOTENT},
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/* OP_CLOSE = 4 */ |
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{rfs4_op_close, nullfree, 0},
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/* OP_COMMIT = 5 */ |
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{rfs4_op_commit, nullfree, RPC_IDEMPOTENT},
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/* OP_CREATE = 6 */ |
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{rfs4_op_create, nullfree, 0},
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/* OP_DELEGPURGE = 7 */ |
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{rfs4_op_inval, nullfree, 0},
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/* OP_DELEGRETURN = 8 */ |
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{rfs4_op_delegreturn, nullfree, 0},
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/* OP_GETATTR = 9 */ |
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{rfs4_op_getattr, rfs4_op_getattr_free, RPC_IDEMPOTENT},
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/* OP_GETFH = 10 */ |
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{rfs4_op_getfh, rfs4_op_getfh_free, RPC_ALL},
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/* OP_LINK = 11 */ |
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{rfs4_op_link, nullfree, 0},
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/* OP_LOCK = 12 */ |
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{rfs4_op_lock, lock_denied_free, 0},
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/* OP_LOCKT = 13 */ |
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{rfs4_op_lockt, lock_denied_free, 0},
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/* OP_LOCKU = 14 */ |
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{rfs4_op_locku, nullfree, 0},
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/* OP_LOOKUP = 15 */ |
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{rfs4_op_lookup, nullfree, (RPC_IDEMPOTENT|RPC_PUBLICFH_OK)},
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/* OP_LOOKUPP = 16 */ |
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{rfs4_op_lookupp, nullfree, (RPC_IDEMPOTENT|RPC_PUBLICFH_OK)},
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/* OP_NVERIFY = 17 */ |
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{rfs4_op_nverify, nullfree, RPC_IDEMPOTENT},
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/* OP_OPEN = 18 */ |
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{rfs4_op_open, rfs4_free_reply, 0},
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/* OP_OPENATTR = 19 */ |
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{rfs4_op_openattr, nullfree, 0},
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/* OP_OPEN_CONFIRM = 20 */ |
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{rfs4_op_open_confirm, nullfree, 0},
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/* OP_OPEN_DOWNGRADE = 21 */ |
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{rfs4_op_open_downgrade, nullfree, 0},
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359 |
||
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/* OP_OPEN_PUTFH = 22 */ |
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{rfs4_op_putfh, nullfree, RPC_ALL},
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362 |
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/* OP_PUTPUBFH = 23 */ |
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{rfs4_op_putpubfh, nullfree, RPC_ALL},
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/* OP_PUTROOTFH = 24 */ |
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{rfs4_op_putrootfh, nullfree, RPC_ALL},
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/* OP_READ = 25 */ |
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{rfs4_op_read, rfs4_op_read_free, RPC_IDEMPOTENT},
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/* OP_READDIR = 26 */ |
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{rfs4_op_readdir, rfs4_op_readdir_free, RPC_IDEMPOTENT},
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/* OP_READLINK = 27 */ |
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{rfs4_op_readlink, rfs4_op_readlink_free, RPC_IDEMPOTENT},
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378 |
/* OP_REMOVE = 28 */ |
|
379 |
{rfs4_op_remove, nullfree, 0},
|
|
380 |
||
381 |
/* OP_RENAME = 29 */ |
|
382 |
{rfs4_op_rename, nullfree, 0},
|
|
383 |
||
384 |
/* OP_RENEW = 30 */ |
|
385 |
{rfs4_op_renew, nullfree, 0},
|
|
386 |
||
387 |
/* OP_RESTOREFH = 31 */ |
|
388 |
{rfs4_op_restorefh, nullfree, RPC_ALL},
|
|
389 |
||
390 |
/* OP_SAVEFH = 32 */ |
|
391 |
{rfs4_op_savefh, nullfree, RPC_ALL},
|
|
392 |
||
393 |
/* OP_SECINFO = 33 */ |
|
394 |
{rfs4_op_secinfo, rfs4_op_secinfo_free, 0},
|
|
395 |
||
396 |
/* OP_SETATTR = 34 */ |
|
397 |
{rfs4_op_setattr, nullfree, 0},
|
|
398 |
||
399 |
/* OP_SETCLIENTID = 35 */ |
|
400 |
{rfs4_op_setclientid, nullfree, 0},
|
|
401 |
||
402 |
/* OP_SETCLIENTID_CONFIRM = 36 */ |
|
403 |
{rfs4_op_setclientid_confirm, nullfree, 0},
|
|
404 |
||
405 |
/* OP_VERIFY = 37 */ |
|
406 |
{rfs4_op_verify, nullfree, RPC_IDEMPOTENT},
|
|
407 |
||
408 |
/* OP_WRITE = 38 */ |
|
409 |
{rfs4_op_write, nullfree, 0},
|
|
410 |
||
411 |
/* OP_RELEASE_LOCKOWNER = 39 */ |
|
412 |
{rfs4_op_release_lockowner, nullfree, 0},
|
|
413 |
}; |
|
414 |
||
415 |
static uint_t rfsv4disp_cnt = sizeof (rfsv4disptab) / sizeof (rfsv4disptab[0]); |
|
416 |
||
417 |
#define OP_ILLEGAL_IDX (rfsv4disp_cnt) |
|
418 |
||
419 |
#ifdef DEBUG |
|
420 |
||
421 |
int rfs4_fillone_debug = 0; |
|
422 |
int rfs4_shrlock_debug = 0; |
|
423 |
int rfs4_no_stub_access = 1; |
|
424 |
int rfs4_rddir_debug = 0; |
|
425 |
||
426 |
static char *rfs4_op_string[] = {
|
|
427 |
"rfs4_op_null", |
|
428 |
"rfs4_op_1 unused", |
|
429 |
"rfs4_op_2 unused", |
|
430 |
"rfs4_op_access", |
|
431 |
"rfs4_op_close", |
|
432 |
"rfs4_op_commit", |
|
433 |
"rfs4_op_create", |
|
434 |
"rfs4_op_delegpurge", |
|
435 |
"rfs4_op_delegreturn", |
|
436 |
"rfs4_op_getattr", |
|
437 |
"rfs4_op_getfh", |
|
438 |
"rfs4_op_link", |
|
439 |
"rfs4_op_lock", |
|
440 |
"rfs4_op_lockt", |
|
441 |
"rfs4_op_locku", |
|
442 |
"rfs4_op_lookup", |
|
443 |
"rfs4_op_lookupp", |
|
444 |
"rfs4_op_nverify", |
|
445 |
"rfs4_op_open", |
|
446 |
"rfs4_op_openattr", |
|
447 |
"rfs4_op_open_confirm", |
|
448 |
"rfs4_op_open_downgrade", |
|
449 |
"rfs4_op_putfh", |
|
450 |
"rfs4_op_putpubfh", |
|
451 |
"rfs4_op_putrootfh", |
|
452 |
"rfs4_op_read", |
|
453 |
"rfs4_op_readdir", |
|
454 |
"rfs4_op_readlink", |
|
455 |
"rfs4_op_remove", |
|
456 |
"rfs4_op_rename", |
|
457 |
"rfs4_op_renew", |
|
458 |
"rfs4_op_restorefh", |
|
459 |
"rfs4_op_savefh", |
|
460 |
"rfs4_op_secinfo", |
|
461 |
"rfs4_op_setattr", |
|
462 |
"rfs4_op_setclientid", |
|
463 |
"rfs4_op_setclient_confirm", |
|
464 |
"rfs4_op_verify", |
|
465 |
"rfs4_op_write", |
|
466 |
"rfs4_op_release_lockowner", |
|
467 |
"rfs4_op_illegal" |
|
468 |
}; |
|
469 |
#endif |
|
470 |
||
471 |
void rfs4_ss_chkclid(rfs4_client_t *); |
|
472 |
||
473 |
#ifdef nextdp |
|
474 |
#undef nextdp |
|
475 |
#endif |
|
476 |
#define nextdp(dp) ((struct dirent64 *)((char *)(dp) + (dp)->d_reclen)) |
|
477 |
||
478 |
static const fs_operation_def_t nfs4_rd_deleg_tmpl[] = {
|
|
479 |
VOPNAME_OPEN, deleg_rdopen, |
|
480 |
VOPNAME_WRITE, deleg_write, |
|
481 |
VOPNAME_SETATTR, deleg_setattr, |
|
482 |
VOPNAME_RWLOCK, deleg_rd_rwlock, |
|
483 |
VOPNAME_SPACE, deleg_space, |
|
484 |
VOPNAME_SETSECATTR, deleg_setsecattr, |
|
485 |
VOPNAME_VNEVENT, deleg_vnevent, |
|
486 |
NULL, NULL |
|
487 |
}; |
|
488 |
static const fs_operation_def_t nfs4_wr_deleg_tmpl[] = {
|
|
489 |
VOPNAME_OPEN, deleg_wropen, |
|
490 |
VOPNAME_READ, deleg_read, |
|
491 |
VOPNAME_WRITE, deleg_write, |
|
492 |
VOPNAME_SETATTR, deleg_setattr, |
|
493 |
VOPNAME_RWLOCK, deleg_wr_rwlock, |
|
494 |
VOPNAME_SPACE, deleg_space, |
|
495 |
VOPNAME_SETSECATTR, deleg_setsecattr, |
|
496 |
VOPNAME_VNEVENT, deleg_vnevent, |
|
497 |
NULL, NULL |
|
498 |
}; |
|
499 |
||
500 |
int |
|
501 |
rfs4_srvrinit(void) |
|
502 |
{
|
|
503 |
timespec32_t verf; |
|
504 |
int error; |
|
505 |
extern void rfs4_attr_init(); |
|
506 |
extern krwlock_t rfs4_deleg_policy_lock; |
|
507 |
||
508 |
/* |
|
509 |
* The following algorithm attempts to find a unique verifier |
|
510 |
* to be used as the write verifier returned from the server |
|
511 |
* to the client. It is important that this verifier change |
|
512 |
* whenever the server reboots. Of secondary importance, it |
|
513 |
* is important for the verifier to be unique between two |
|
514 |
* different servers. |
|
515 |
* |
|
516 |
* Thus, an attempt is made to use the system hostid and the |
|
517 |
* current time in seconds when the nfssrv kernel module is |
|
518 |
* loaded. It is assumed that an NFS server will not be able |
|
519 |
* to boot and then to reboot in less than a second. If the |
|
520 |
* hostid has not been set, then the current high resolution |
|
521 |
* time is used. This will ensure different verifiers each |
|
522 |
* time the server reboots and minimize the chances that two |
|
523 |
* different servers will have the same verifier. |
|
524 |
* XXX - this is broken on LP64 kernels. |
|
525 |
*/ |
|
526 |
verf.tv_sec = (time_t)nfs_atoi(hw_serial); |
|
527 |
if (verf.tv_sec != 0) {
|
|
528 |
verf.tv_nsec = gethrestime_sec(); |
|
529 |
} else {
|
|
530 |
timespec_t tverf; |
|
531 |
||
532 |
gethrestime(&tverf); |
|
533 |
verf.tv_sec = (time_t)tverf.tv_sec; |
|
534 |
verf.tv_nsec = tverf.tv_nsec; |
|
535 |
} |
|
536 |
||
537 |
Write4verf = *(uint64_t *)&verf; |
|
538 |
||
539 |
rfs4_attr_init(); |
|
540 |
mutex_init(&rfs4_deleg_lock, NULL, MUTEX_DEFAULT, NULL); |
|
541 |
||
542 |
/* Used to manage create/destroy of server state */ |
|
543 |
mutex_init(&rfs4_state_lock, NULL, MUTEX_DEFAULT, NULL); |
|
544 |
||
545 |
/* Used to manage access to server instance linked list */ |
|
546 |
mutex_init(&rfs4_servinst_lock, NULL, MUTEX_DEFAULT, NULL); |
|
547 |
||
548 |
/* Used to manage access to rfs4_deleg_policy */ |
|
549 |
rw_init(&rfs4_deleg_policy_lock, NULL, RW_DEFAULT, NULL); |
|
550 |
||
551 |
error = fem_create("deleg_rdops", nfs4_rd_deleg_tmpl, &deleg_rdops);
|
|
552 |
if (error != 0) {
|
|
553 |
rfs4_disable_delegation(); |
|
554 |
} else {
|
|
555 |
error = fem_create("deleg_wrops", nfs4_wr_deleg_tmpl,
|
|
556 |
&deleg_wrops); |
|
557 |
if (error != 0) {
|
|
558 |
rfs4_disable_delegation(); |
|
559 |
fem_free(deleg_rdops); |
|
560 |
} |
|
561 |
} |
|
562 |
||
563 |
nfs4_srv_caller_id = fs_new_caller_id(); |
|
564 |
||
565 |
lockt_sysid = lm_alloc_sysidt(); |
|
566 |
||
567 |
return (0); |
|
568 |
} |
|
569 |
||
570 |
void |
|
571 |
rfs4_srvrfini(void) |
|
572 |
{
|
|
573 |
extern krwlock_t rfs4_deleg_policy_lock; |
|
574 |
||
575 |
if (lockt_sysid != LM_NOSYSID) {
|
|
576 |
lm_free_sysidt(lockt_sysid); |
|
577 |
lockt_sysid = LM_NOSYSID; |
|
578 |
} |
|
579 |
||
580 |
mutex_destroy(&rfs4_deleg_lock); |
|
581 |
mutex_destroy(&rfs4_state_lock); |
|
582 |
rw_destroy(&rfs4_deleg_policy_lock); |
|
583 |
||
584 |
fem_free(deleg_rdops); |
|
585 |
fem_free(deleg_wrops); |
|
586 |
} |
|
587 |
||
588 |
void |
|
589 |
rfs4_init_compound_state(struct compound_state *cs) |
|
590 |
{
|
|
591 |
bzero(cs, sizeof (*cs)); |
|
592 |
cs->cont = TRUE; |
|
593 |
cs->access = CS_ACCESS_DENIED; |
|
594 |
cs->deleg = FALSE; |
|
595 |
cs->mandlock = FALSE; |
|
596 |
cs->fh.nfs_fh4_val = cs->fhbuf; |
|
597 |
} |
|
598 |
||
599 |
void |
|
600 |
rfs4_grace_start(rfs4_servinst_t *sip) |
|
601 |
{
|
|
602 |
time_t now = gethrestime_sec(); |
|
603 |
||
604 |
NFS4_DEBUG(rfs4_servinst_debug, (CE_NOTE, |
|
605 |
"rfs4_grace_start: inst %p: 0x%lx", (void *)sip, now)); |
|
606 |
||
607 |
rw_enter(&sip->rwlock, RW_WRITER); |
|
608 |
sip->start_time = now; |
|
609 |
sip->grace_period = rfs4_grace_period; |
|
610 |
rw_exit(&sip->rwlock); |
|
611 |
} |
|
612 |
||
613 |
/* |
|
614 |
* returns true if the instance's grace period has never been started |
|
615 |
*/ |
|
616 |
int |
|
617 |
rfs4_servinst_grace_new(rfs4_servinst_t *sip) |
|
618 |
{
|
|
619 |
time_t start_time; |
|
620 |
||
621 |
rw_enter(&sip->rwlock, RW_READER); |
|
622 |
start_time = sip->start_time; |
|
623 |
rw_exit(&sip->rwlock); |
|
624 |
||
625 |
return (start_time == 0); |
|
626 |
} |
|
627 |
||
628 |
/* |
|
629 |
* Indicates if server instance is within the |
|
630 |
* grace period. |
|
631 |
*/ |
|
632 |
int |
|
633 |
rfs4_servinst_in_grace(rfs4_servinst_t *sip) |
|
634 |
{
|
|
635 |
time_t grace_expiry; |
|
636 |
||
637 |
rw_enter(&sip->rwlock, RW_READER); |
|
638 |
grace_expiry = sip->start_time + sip->grace_period; |
|
639 |
rw_exit(&sip->rwlock); |
|
640 |
||
641 |
return (gethrestime_sec() < grace_expiry); |
|
642 |
} |
|
643 |
||
644 |
int |
|
645 |
rfs4_clnt_in_grace(rfs4_client_t *cp) |
|
646 |
{
|
|
647 |
ASSERT(rfs4_dbe_refcnt(cp->dbe) > 0); |
|
648 |
||
649 |
return (rfs4_servinst_in_grace(cp->server_instance)); |
|
650 |
} |
|
651 |
||
652 |
/* |
|
653 |
* reset all currently active grace periods |
|
654 |
*/ |
|
655 |
void |
|
656 |
rfs4_grace_reset_all(void) |
|
657 |
{
|
|
658 |
#ifdef DEBUG |
|
659 |
int n = 0; |
|
660 |
#endif |
|
661 |
rfs4_servinst_t *sip; |
|
662 |
||
663 |
mutex_enter(&rfs4_servinst_lock); |
|
664 |
for (sip = rfs4_cur_servinst; sip != NULL; sip = sip->prev) {
|
|
665 |
if (rfs4_servinst_in_grace(sip)) {
|
|
666 |
rfs4_grace_start(sip); |
|
667 |
#ifdef DEBUG |
|
668 |
n++; |
|
669 |
#endif |
|
670 |
} |
|
671 |
} |
|
672 |
mutex_exit(&rfs4_servinst_lock); |
|
673 |
||
674 |
NFS4_DEBUG(rfs4_servinst_debug, (CE_NOTE, |
|
675 |
"rfs4_grace_reset_all: reset %d instances", n)); |
|
676 |
} |
|
677 |
||
678 |
/* |
|
679 |
* start any new instances' grace periods |
|
680 |
*/ |
|
681 |
void |
|
682 |
rfs4_grace_start_new(void) |
|
683 |
{
|
|
684 |
#ifdef DEBUG |
|
685 |
int n = 0; |
|
686 |
#endif |
|
687 |
rfs4_servinst_t *sip; |
|
688 |
||
689 |
mutex_enter(&rfs4_servinst_lock); |
|
690 |
for (sip = rfs4_cur_servinst; sip != NULL; sip = sip->prev) {
|
|
691 |
if (rfs4_servinst_grace_new(sip)) |
|
692 |
rfs4_grace_start(sip); |
|
693 |
#ifdef DEBUG |
|
694 |
n++; |
|
695 |
#endif |
|
696 |
} |
|
697 |
mutex_exit(&rfs4_servinst_lock); |
|
698 |
||
699 |
NFS4_DEBUG(rfs4_servinst_debug, (CE_NOTE, |
|
700 |
"rfs4_grace_start_new: started %d new instances", n)); |
|
701 |
} |
|
702 |
||
703 |
/* |
|
704 |
* Create a new server instance, and make it the currently active instance. |
|
705 |
* Note that starting the grace period too early will reduce the clients' |
|
706 |
* recovery window. |
|
707 |
*/ |
|
708 |
void |
|
709 |
rfs4_servinst_create(int start_grace) |
|
710 |
{
|
|
711 |
rfs4_servinst_t *sip; |
|
712 |
||
713 |
sip = kmem_alloc(sizeof (rfs4_servinst_t), KM_SLEEP); |
|
714 |
rw_init(&sip->rwlock, NULL, RW_DEFAULT, NULL); |
|
715 |
||
716 |
sip->start_time = (time_t)0; |
|
717 |
sip->grace_period = (time_t)0; |
|
718 |
sip->next = NULL; |
|
719 |
sip->prev = NULL; |
|
720 |
||
721 |
mutex_enter(&rfs4_servinst_lock); |
|
722 |
if (rfs4_cur_servinst == NULL) {
|
|
723 |
NFS4_DEBUG(rfs4_servinst_debug, (CE_NOTE, |
|
724 |
"rfs4_servinst_create: creating first instance")); |
|
725 |
} else {
|
|
726 |
/* add to linked list */ |
|
727 |
sip->prev = rfs4_cur_servinst; |
|
728 |
rfs4_cur_servinst->next = sip; |
|
729 |
} |
|
730 |
if (start_grace) |
|
731 |
rfs4_grace_start(sip); |
|
732 |
/* make the new instance "current" */ |
|
733 |
rfs4_cur_servinst = sip; |
|
734 |
mutex_exit(&rfs4_servinst_lock); |
|
735 |
||
736 |
NFS4_DEBUG(rfs4_servinst_debug, (CE_NOTE, |
|
737 |
"rfs4_servinst_create: new current instance: %p; start_grace: %d", |
|
738 |
(void *)sip, start_grace)); |
|
739 |
} |
|
740 |
||
741 |
/* |
|
742 |
* In future, we might add a rfs4_servinst_destroy(sip) but, for now, destroy |
|
743 |
* all instances directly. |
|
744 |
*/ |
|
745 |
void |
|
746 |
rfs4_servinst_destroy_all(void) |
|
747 |
{
|
|
748 |
rfs4_servinst_t *sip, *prev, *current; |
|
749 |
#ifdef DEBUG |
|
750 |
int n = 0; |
|
751 |
#endif |
|
752 |
||
753 |
mutex_enter(&rfs4_servinst_lock); |
|
754 |
ASSERT(rfs4_cur_servinst != NULL); |
|
755 |
current = rfs4_cur_servinst; |
|
756 |
rfs4_cur_servinst = NULL; |
|
757 |
for (sip = current; sip != NULL; sip = prev) {
|
|
758 |
prev = sip->prev; |
|
759 |
rw_destroy(&sip->rwlock); |
|
760 |
kmem_free(sip, sizeof (rfs4_servinst_t)); |
|
761 |
#ifdef DEBUG |
|
762 |
n++; |
|
763 |
#endif |
|
764 |
} |
|
765 |
mutex_exit(&rfs4_servinst_lock); |
|
766 |
||
767 |
NFS4_DEBUG(rfs4_servinst_debug, (CE_NOTE, |
|
768 |
"rfs4_servinst_destroy_all: destroyed %d instances", n)); |
|
769 |
} |
|
770 |
||
771 |
/* |
|
772 |
* Assign the current server instance to a client_t. |
|
773 |
* Should be called with cp->dbe held. |
|
774 |
*/ |
|
775 |
void |
|
776 |
rfs4_servinst_assign(rfs4_client_t *cp, rfs4_servinst_t *sip) |
|
777 |
{
|
|
778 |
ASSERT(rfs4_dbe_refcnt(cp->dbe) > 0); |
|
779 |
||
780 |
NFS4_DEBUG(rfs4_servinst_debug, (CE_NOTE, |
|
781 |
"rfs4_servinst_assign: client: %p, old: %p, new: %p", (void *)cp, |
|
782 |
(void *)cp->server_instance, (void *)sip)); |
|
783 |
||
784 |
/* |
|
785 |
* The lock ensures that if the current instance is in the process |
|
786 |
* of changing, we will see the new one. |
|
787 |
*/ |
|
788 |
mutex_enter(&rfs4_servinst_lock); |
|
789 |
cp->server_instance = sip; |
|
790 |
mutex_exit(&rfs4_servinst_lock); |
|
791 |
} |
|
792 |
||
793 |
rfs4_servinst_t * |
|
794 |
rfs4_servinst(rfs4_client_t *cp) |
|
795 |
{
|
|
796 |
ASSERT(rfs4_dbe_refcnt(cp->dbe) > 0); |
|
797 |
||
798 |
return (cp->server_instance); |
|
799 |
} |
|
800 |
||
801 |
/* ARGSUSED */ |
|
802 |
static void |
|
803 |
nullfree(caddr_t resop) |
|
804 |
{
|
|
805 |
} |
|
806 |
||
807 |
/* |
|
808 |
* This is a fall-through for invalid or not implemented (yet) ops |
|
809 |
*/ |
|
810 |
/* ARGSUSED */ |
|
811 |
static void |
|
812 |
rfs4_op_inval(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
813 |
struct compound_state *cs) |
|
814 |
{
|
|
815 |
*cs->statusp = *((nfsstat4 *)&(resop)->nfs_resop4_u) = NFS4ERR_INVAL; |
|
816 |
} |
|
817 |
||
818 |
/* |
|
819 |
* Check if the security flavor, nfsnum, is in the flavor_list. |
|
820 |
*/ |
|
821 |
bool_t |
|
822 |
in_flavor_list(int nfsnum, int *flavor_list, int count) |
|
823 |
{
|
|
824 |
int i; |
|
825 |
||
826 |
for (i = 0; i < count; i++) {
|
|
827 |
if (nfsnum == flavor_list[i]) |
|
828 |
return (TRUE); |
|
829 |
} |
|
830 |
return (FALSE); |
|
831 |
} |
|
832 |
||
833 |
/* |
|
834 |
* Used by rfs4_op_secinfo to get the security information from the |
|
835 |
* export structure associated with the component. |
|
836 |
*/ |
|
837 |
/* ARGSUSED */ |
|
838 |
static nfsstat4 |
|
839 |
do_rfs4_op_secinfo(struct compound_state *cs, char *nm, SECINFO4res *resp) |
|
840 |
{
|
|
841 |
int error, different_export = 0; |
|
842 |
vnode_t *dvp, *vp, *tvp; |
|
843 |
struct exportinfo *exi = NULL; |
|
844 |
fid_t fid; |
|
845 |
uint_t count, i; |
|
846 |
secinfo4 *resok_val; |
|
847 |
struct secinfo *secp; |
|
848 |
bool_t did_traverse; |
|
849 |
int dotdot, walk; |
|
850 |
||
851 |
dvp = cs->vp; |
|
852 |
dotdot = (nm[0] == '.' && nm[1] == '.' && nm[2] == '\0'); |
|
853 |
||
854 |
/* |
|
855 |
* If dotdotting, then need to check whether it's above the |
|
856 |
* root of a filesystem, or above an export point. |
|
857 |
*/ |
|
858 |
if (dotdot) {
|
|
859 |
||
860 |
/* |
|
861 |
* If dotdotting at the root of a filesystem, then |
|
862 |
* need to traverse back to the mounted-on filesystem |
|
863 |
* and do the dotdot lookup there. |
|
864 |
*/ |
|
865 |
if (cs->vp->v_flag & VROOT) {
|
|
866 |
||
867 |
/* |
|
868 |
* If at the system root, then can |
|
869 |
* go up no further. |
|
870 |
*/ |
|
871 |
if (VN_CMP(dvp, rootdir)) |
|
872 |
return (puterrno4(ENOENT)); |
|
873 |
||
874 |
/* |
|
875 |
* Traverse back to the mounted-on filesystem |
|
876 |
*/ |
|
877 |
dvp = untraverse(cs->vp); |
|
878 |
||
879 |
/* |
|
880 |
* Set the different_export flag so we remember |
|
881 |
* to pick up a new exportinfo entry for |
|
882 |
* this new filesystem. |
|
883 |
*/ |
|
884 |
different_export = 1; |
|
885 |
} else {
|
|
886 |
||
887 |
/* |
|
888 |
* If dotdotting above an export point then set |
|
889 |
* the different_export to get new export info. |
|
890 |
*/ |
|
891 |
different_export = nfs_exported(cs->exi, cs->vp); |
|
892 |
} |
|
893 |
} |
|
894 |
||
895 |
/* |
|
896 |
* Get the vnode for the component "nm". |
|
897 |
*/ |
|
898 |
error = VOP_LOOKUP(dvp, nm, &vp, NULL, 0, NULL, cs->cr); |
|
899 |
if (error) |
|
900 |
return (puterrno4(error)); |
|
901 |
||
902 |
/* |
|
903 |
* If the vnode is in a pseudo filesystem, or if the security flavor |
|
904 |
* used in the request is valid but not an explicitly shared flavor, |
|
905 |
* or the access bit indicates that this is a limited access, |
|
906 |
* check whether this vnode is visible. |
|
907 |
*/ |
|
908 |
if (!different_export && |
|
909 |
(PSEUDO(cs->exi) || ! is_exported_sec(cs->nfsflavor, cs->exi) || |
|
910 |
cs->access & CS_ACCESS_LIMITED)) {
|
|
911 |
if (! nfs_visible(cs->exi, vp, &different_export)) {
|
|
912 |
VN_RELE(vp); |
|
913 |
return (puterrno4(ENOENT)); |
|
914 |
} |
|
915 |
} |
|
916 |
||
917 |
/* |
|
918 |
* If it's a mountpoint, then traverse it. |
|
919 |
*/ |
|
920 |
if (vn_ismntpt(vp)) {
|
|
921 |
tvp = vp; |
|
922 |
if ((error = traverse(&tvp)) != 0) {
|
|
923 |
VN_RELE(vp); |
|
924 |
return (puterrno4(error)); |
|
925 |
} |
|
926 |
/* remember that we had to traverse mountpoint */ |
|
927 |
did_traverse = TRUE; |
|
928 |
vp = tvp; |
|
929 |
different_export = 1; |
|
930 |
} else if (vp->v_vfsp != dvp->v_vfsp) {
|
|
931 |
/* |
|
932 |
* If vp isn't a mountpoint and the vfs ptrs aren't the same, |
|
933 |
* then vp is probably an LOFS object. We don't need the |
|
934 |
* realvp, we just need to know that we might have crossed |
|
935 |
* a server fs boundary and need to call checkexport4. |
|
936 |
* (LOFS lookup hides server fs mountpoints, and actually calls |
|
937 |
* traverse) |
|
938 |
*/ |
|
939 |
different_export = 1; |
|
940 |
did_traverse = FALSE; |
|
941 |
} |
|
942 |
||
943 |
/* |
|
944 |
* Get the export information for it. |
|
945 |
*/ |
|
946 |
if (different_export) {
|
|
947 |
||
948 |
bzero(&fid, sizeof (fid)); |
|
949 |
fid.fid_len = MAXFIDSZ; |
|
950 |
error = vop_fid_pseudo(vp, &fid); |
|
951 |
if (error) {
|
|
952 |
VN_RELE(vp); |
|
953 |
return (puterrno4(error)); |
|
954 |
} |
|
955 |
||
956 |
if (dotdot) |
|
957 |
exi = nfs_vptoexi(NULL, vp, cs->cr, &walk, NULL, TRUE); |
|
958 |
else |
|
959 |
exi = checkexport4(&vp->v_vfsp->vfs_fsid, &fid, vp); |
|
960 |
||
961 |
if (exi == NULL) {
|
|
962 |
if (did_traverse == TRUE) {
|
|
963 |
/* |
|
964 |
* If this vnode is a mounted-on vnode, |
|
965 |
* but the mounted-on file system is not |
|
966 |
* exported, send back the secinfo for |
|
967 |
* the exported node that the mounted-on |
|
968 |
* vnode lives in. |
|
969 |
*/ |
|
970 |
exi = cs->exi; |
|
971 |
} else {
|
|
972 |
VN_RELE(vp); |
|
973 |
return (puterrno4(EACCES)); |
|
974 |
} |
|
975 |
} |
|
976 |
} else {
|
|
977 |
exi = cs->exi; |
|
978 |
} |
|
979 |
ASSERT(exi != NULL); |
|
980 |
||
981 |
||
982 |
/* |
|
983 |
* Create the secinfo result based on the security information |
|
984 |
* from the exportinfo structure (exi). |
|
985 |
* |
|
986 |
* Return all flavors for a pseudo node. |
|
987 |
* For a real export node, return the flavor that the client |
|
988 |
* has access with. |
|
989 |
*/ |
|
990 |
ASSERT(RW_LOCK_HELD(&exported_lock)); |
|
991 |
if (PSEUDO(exi)) {
|
|
992 |
count = exi->exi_export.ex_seccnt; /* total sec count */ |
|
993 |
resok_val = kmem_alloc(count * sizeof (secinfo4), KM_SLEEP); |
|
994 |
secp = exi->exi_export.ex_secinfo; |
|
995 |
||
996 |
for (i = 0; i < count; i++) {
|
|
997 |
resok_val[i].flavor = secp[i].s_secinfo.sc_rpcnum; |
|
998 |
if (resok_val[i].flavor == RPCSEC_GSS) {
|
|
999 |
rpcsec_gss_info *info; |
|
1000 |
||
1001 |
info = &resok_val[i].flavor_info; |
|
1002 |
info->qop = secp[i].s_secinfo.sc_qop; |
|
1003 |
info->service = |
|
1004 |
(rpc_gss_svc_t)secp[i].s_secinfo.sc_service; |
|
1005 |
||
1006 |
/* get oid opaque data */ |
|
1007 |
info->oid.sec_oid4_len = |
|
1008 |
secp[i].s_secinfo.sc_gss_mech_type->length; |
|
1009 |
info->oid.sec_oid4_val = |
|
1010 |
kmem_alloc( |
|
1011 |
secp[i].s_secinfo.sc_gss_mech_type->length, |
|
1012 |
KM_SLEEP); |
|
1013 |
bcopy(secp[i].s_secinfo.sc_gss_mech_type->elements, |
|
1014 |
info->oid.sec_oid4_val, info->oid.sec_oid4_len); |
|
1015 |
} |
|
1016 |
} |
|
1017 |
resp->SECINFO4resok_len = count; |
|
1018 |
resp->SECINFO4resok_val = resok_val; |
|
1019 |
} else {
|
|
1020 |
int ret_cnt = 0, k = 0; |
|
1021 |
int *flavor_list; |
|
1022 |
||
1023 |
count = exi->exi_export.ex_seccnt; /* total sec count */ |
|
1024 |
secp = exi->exi_export.ex_secinfo; |
|
1025 |
||
1026 |
flavor_list = kmem_alloc(count * sizeof (int), KM_SLEEP); |
|
1027 |
/* find out which flavors to return */ |
|
1028 |
for (i = 0; i < count; i ++) {
|
|
1029 |
int access, flavor, perm; |
|
1030 |
||
1031 |
flavor = secp[i].s_secinfo.sc_nfsnum; |
|
1032 |
perm = secp[i].s_flags; |
|
1033 |
||
1034 |
access = nfsauth4_secinfo_access(exi, cs->req, |
|
1035 |
flavor, perm); |
|
1036 |
||
1037 |
if (! (access & NFSAUTH_DENIED) && |
|
1038 |
! (access & NFSAUTH_WRONGSEC)) {
|
|
1039 |
flavor_list[ret_cnt] = flavor; |
|
1040 |
ret_cnt++; |
|
1041 |
} |
|
1042 |
} |
|
1043 |
||
1044 |
/* Create the returning SECINFO value */ |
|
1045 |
resok_val = kmem_alloc(ret_cnt * sizeof (secinfo4), KM_SLEEP); |
|
1046 |
||
1047 |
for (i = 0; i < count; i++) {
|
|
1048 |
/* If the flavor is in the flavor list, fill in resok_val. */ |
|
1049 |
if (in_flavor_list(secp[i].s_secinfo.sc_nfsnum, |
|
1050 |
flavor_list, ret_cnt)) {
|
|
1051 |
resok_val[k].flavor = secp[i].s_secinfo.sc_rpcnum; |
|
1052 |
if (resok_val[k].flavor == RPCSEC_GSS) {
|
|
1053 |
rpcsec_gss_info *info; |
|
1054 |
||
1055 |
info = &resok_val[k].flavor_info; |
|
1056 |
info->qop = secp[i].s_secinfo.sc_qop; |
|
1057 |
info->service = |
|
1058 |
(rpc_gss_svc_t)secp[i].s_secinfo.sc_service; |
|
1059 |
||
1060 |
/* get oid opaque data */ |
|
1061 |
info->oid.sec_oid4_len = |
|
1062 |
secp[i].s_secinfo.sc_gss_mech_type->length; |
|
1063 |
info->oid.sec_oid4_val = |
|
1064 |
kmem_alloc( |
|
1065 |
secp[i].s_secinfo.sc_gss_mech_type->length, |
|
1066 |
KM_SLEEP); |
|
1067 |
bcopy(secp[i].s_secinfo.sc_gss_mech_type->elements, |
|
1068 |
info->oid.sec_oid4_val, info->oid.sec_oid4_len); |
|
1069 |
} |
|
1070 |
k++; |
|
1071 |
} |
|
1072 |
if (k >= ret_cnt) |
|
1073 |
break; |
|
1074 |
} |
|
1075 |
resp->SECINFO4resok_len = ret_cnt; |
|
1076 |
resp->SECINFO4resok_val = resok_val; |
|
1077 |
kmem_free(flavor_list, count * sizeof (int)); |
|
1078 |
} |
|
1079 |
||
1080 |
VN_RELE(vp); |
|
1081 |
return (NFS4_OK); |
|
1082 |
} |
|
1083 |
||
1084 |
/* |
|
1085 |
* SECINFO (Operation 33): Obtain required security information on |
|
1086 |
* the component name in the format of (security-mechanism-oid, qop, service) |
|
1087 |
* triplets. |
|
1088 |
*/ |
|
1089 |
/* ARGSUSED */ |
|
1090 |
static void |
|
1091 |
rfs4_op_secinfo(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
1092 |
struct compound_state *cs) |
|
1093 |
{
|
|
1094 |
SECINFO4res *resp = &resop->nfs_resop4_u.opsecinfo; |
|
1095 |
utf8string *utfnm = &argop->nfs_argop4_u.opsecinfo.name; |
|
1096 |
uint_t len; |
|
1097 |
char *nm; |
|
1098 |
||
1099 |
/* |
|
1100 |
* Current file handle (cfh) should have been set before getting |
|
1101 |
* into this function. If not, return error. |
|
1102 |
*/ |
|
1103 |
if (cs->vp == NULL) {
|
|
1104 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
1105 |
return; |
|
1106 |
} |
|
1107 |
||
1108 |
if (cs->vp->v_type != VDIR) {
|
|
1109 |
*cs->statusp = resp->status = NFS4ERR_NOTDIR; |
|
1110 |
return; |
|
1111 |
} |
|
1112 |
||
1113 |
/* |
|
1114 |
* Verify the component name. If failed, error out, but |
|
1115 |
* do not error out if the component name is a "..". |
|
1116 |
* SECINFO will return its parents secinfo data for SECINFO "..". |
|
1117 |
*/ |
|
1118 |
if (!utf8_dir_verify(utfnm)) {
|
|
1119 |
if (utfnm->utf8string_len != 2 || |
|
1120 |
utfnm->utf8string_val[0] != '.' || |
|
1121 |
utfnm->utf8string_val[1] != '.') {
|
|
1122 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
1123 |
return; |
|
1124 |
} |
|
1125 |
} |
|
1126 |
||
1127 |
nm = utf8_to_str(utfnm, &len, NULL); |
|
1128 |
if (nm == NULL) {
|
|
1129 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
1130 |
return; |
|
1131 |
} |
|
1132 |
||
1133 |
if (len > MAXNAMELEN) {
|
|
1134 |
*cs->statusp = resp->status = NFS4ERR_NAMETOOLONG; |
|
1135 |
kmem_free(nm, len); |
|
1136 |
return; |
|
1137 |
} |
|
1138 |
||
1139 |
*cs->statusp = resp->status = do_rfs4_op_secinfo(cs, nm, resp); |
|
1140 |
||
1141 |
kmem_free(nm, len); |
|
1142 |
} |
|
1143 |
||
1144 |
/* |
|
1145 |
* Free SECINFO result. |
|
1146 |
*/ |
|
1147 |
/* ARGSUSED */ |
|
1148 |
static void |
|
1149 |
rfs4_op_secinfo_free(nfs_resop4 *resop) |
|
1150 |
{
|
|
1151 |
SECINFO4res *resp = &resop->nfs_resop4_u.opsecinfo; |
|
1152 |
int count, i; |
|
1153 |
secinfo4 *resok_val; |
|
1154 |
||
1155 |
/* If this is not an Ok result, nothing to free. */ |
|
1156 |
if (resp->status != NFS4_OK) {
|
|
1157 |
return; |
|
1158 |
} |
|
1159 |
||
1160 |
count = resp->SECINFO4resok_len; |
|
1161 |
resok_val = resp->SECINFO4resok_val; |
|
1162 |
||
1163 |
for (i = 0; i < count; i++) {
|
|
1164 |
if (resok_val[i].flavor == RPCSEC_GSS) {
|
|
1165 |
rpcsec_gss_info *info; |
|
1166 |
||
1167 |
info = &resok_val[i].flavor_info; |
|
1168 |
kmem_free(info->oid.sec_oid4_val, info->oid.sec_oid4_len); |
|
1169 |
} |
|
1170 |
} |
|
1171 |
kmem_free(resok_val, count * sizeof (secinfo4)); |
|
1172 |
resp->SECINFO4resok_len = 0; |
|
1173 |
resp->SECINFO4resok_val = NULL; |
|
1174 |
} |
|
1175 |
||
| 1676 | 1176 |
/* |
1177 |
* do label check on client label and server's file lable. |
|
1178 |
*/ |
|
1179 |
static boolean_t |
|
1180 |
do_rfs4_label_check(bslabel_t *clabel, vnode_t *vp, int flag) |
|
1181 |
{
|
|
1182 |
bslabel_t *slabel; |
|
1183 |
ts_label_t *tslabel; |
|
1184 |
boolean_t result; |
|
1185 |
||
1186 |
if ((tslabel = nfs4_getflabel(vp)) == NULL) {
|
|
1187 |
return (B_FALSE); |
|
1188 |
} |
|
1189 |
slabel = label2bslabel(tslabel); |
|
1190 |
DTRACE_PROBE4(tx__rfs4__log__info__labelcheck, char *, |
|
1191 |
"comparing server's file label(1) with client label(2) (vp(3))", |
|
1192 |
bslabel_t *, slabel, bslabel_t *, clabel, vnode_t *, vp); |
|
1193 |
||
1194 |
if (flag == EQUALITY_CHECK) |
|
1195 |
result = blequal(clabel, slabel); |
|
1196 |
else |
|
1197 |
result = bldominates(clabel, slabel); |
|
1198 |
label_rele(tslabel); |
|
1199 |
return (result); |
|
1200 |
} |
|
1201 |
||
| 0 | 1202 |
/* ARGSUSED */ |
1203 |
static void |
|
1204 |
rfs4_op_access(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
1205 |
struct compound_state *cs) |
|
1206 |
{
|
|
1207 |
ACCESS4args *args = &argop->nfs_argop4_u.opaccess; |
|
1208 |
ACCESS4res *resp = &resop->nfs_resop4_u.opaccess; |
|
1209 |
int error; |
|
1210 |
vnode_t *vp; |
|
1211 |
struct vattr va; |
|
1212 |
int checkwriteperm; |
|
1213 |
cred_t *cr = cs->cr; |
|
| 1676 | 1214 |
bslabel_t *clabel, *slabel; |
1215 |
ts_label_t *tslabel; |
|
1216 |
boolean_t admin_low_client; |
|
| 0 | 1217 |
|
1218 |
#if 0 /* XXX allow access even if !cs->access. Eventually only pseudo fs */ |
|
1219 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
1220 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
1221 |
return; |
|
1222 |
} |
|
1223 |
#endif |
|
1224 |
if (cs->vp == NULL) {
|
|
1225 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
1226 |
return; |
|
1227 |
} |
|
1228 |
||
1229 |
ASSERT(cr != NULL); |
|
1230 |
||
1231 |
vp = cs->vp; |
|
1232 |
||
1233 |
/* |
|
1234 |
* If the file system is exported read only, it is not appropriate |
|
1235 |
* to check write permissions for regular files and directories. |
|
1236 |
* Special files are interpreted by the client, so the underlying |
|
1237 |
* permissions are sent back to the client for interpretation. |
|
1238 |
*/ |
|
1239 |
if (rdonly4(cs->exi, cs->vp, req) && |
|
1240 |
(vp->v_type == VREG || vp->v_type == VDIR)) |
|
1241 |
checkwriteperm = 0; |
|
1242 |
else |
|
1243 |
checkwriteperm = 1; |
|
1244 |
||
1245 |
/* |
|
1246 |
* XXX |
|
1247 |
* We need the mode so that we can correctly determine access |
|
1248 |
* permissions relative to a mandatory lock file. Access to |
|
1249 |
* mandatory lock files is denied on the server, so it might |
|
1250 |
* as well be reflected to the server during the open. |
|
1251 |
*/ |
|
1252 |
va.va_mask = AT_MODE; |
|
1253 |
error = VOP_GETATTR(vp, &va, 0, cr); |
|
1254 |
if (error) {
|
|
1255 |
*cs->statusp = resp->status = puterrno4(error); |
|
1256 |
return; |
|
1257 |
} |
|
1258 |
resp->access = 0; |
|
1259 |
resp->supported = 0; |
|
1260 |
||
| 1676 | 1261 |
if (is_system_labeled()) {
|
1262 |
ASSERT(req->rq_label != NULL); |
|
1263 |
clabel = req->rq_label; |
|
1264 |
DTRACE_PROBE2(tx__rfs4__log__info__opaccess__clabel, char *, |
|
1265 |
"got client label from request(1)", |
|
1266 |
struct svc_req *, req); |
|
1267 |
if (!blequal(&l_admin_low->tsl_label, clabel)) {
|
|
1268 |
if ((tslabel = nfs4_getflabel(vp)) == NULL) {
|
|
1269 |
*cs->statusp = resp->status = puterrno4(EACCES); |
|
1270 |
return; |
|
1271 |
} |
|
1272 |
slabel = label2bslabel(tslabel); |
|
1273 |
DTRACE_PROBE3(tx__rfs4__log__info__opaccess__slabel, |
|
1274 |
char *, "got server label(1) for vp(2)", |
|
1275 |
bslabel_t *, slabel, vnode_t *, vp); |
|
1276 |
||
1277 |
admin_low_client = B_FALSE; |
|
1278 |
} else |
|
1279 |
admin_low_client = B_TRUE; |
|
1280 |
} |
|
1281 |
||
| 0 | 1282 |
if (args->access & ACCESS4_READ) {
|
1283 |
error = VOP_ACCESS(vp, VREAD, 0, cr); |
|
| 1676 | 1284 |
if (!error && !MANDLOCK(vp, va.va_mode) && |
1285 |
(!is_system_labeled() || admin_low_client || |
|
1286 |
bldominates(clabel, slabel))) |
|
| 0 | 1287 |
resp->access |= ACCESS4_READ; |
1288 |
resp->supported |= ACCESS4_READ; |
|
1289 |
} |
|
1290 |
if ((args->access & ACCESS4_LOOKUP) && vp->v_type == VDIR) {
|
|
1291 |
error = VOP_ACCESS(vp, VEXEC, 0, cr); |
|
| 1676 | 1292 |
if (!error && (!is_system_labeled() || admin_low_client || |
1293 |
bldominates(clabel, slabel))) |
|
| 0 | 1294 |
resp->access |= ACCESS4_LOOKUP; |
1295 |
resp->supported |= ACCESS4_LOOKUP; |
|
1296 |
} |
|
1297 |
if (checkwriteperm && |
|
1298 |
(args->access & (ACCESS4_MODIFY|ACCESS4_EXTEND))) {
|
|
1299 |
error = VOP_ACCESS(vp, VWRITE, 0, cr); |
|
| 1676 | 1300 |
if (!error && !MANDLOCK(vp, va.va_mode) && |
1301 |
(!is_system_labeled() || admin_low_client || |
|
1302 |
blequal(clabel, slabel))) |
|
| 0 | 1303 |
resp->access |= |
1304 |
(args->access & (ACCESS4_MODIFY|ACCESS4_EXTEND)); |
|
1305 |
resp->supported |= (ACCESS4_MODIFY|ACCESS4_EXTEND); |
|
1306 |
} |
|
1307 |
||
1308 |
if (checkwriteperm && |
|
1309 |
(args->access & ACCESS4_DELETE) && vp->v_type == VDIR) {
|
|
1310 |
error = VOP_ACCESS(vp, VWRITE, 0, cr); |
|
| 1676 | 1311 |
if (!error && (!is_system_labeled() || admin_low_client || |
1312 |
blequal(clabel, slabel))) |
|
| 0 | 1313 |
resp->access |= ACCESS4_DELETE; |
1314 |
resp->supported |= ACCESS4_DELETE; |
|
1315 |
} |
|
1316 |
if (args->access & ACCESS4_EXECUTE && vp->v_type != VDIR) {
|
|
1317 |
error = VOP_ACCESS(vp, VEXEC, 0, cr); |
|
| 1676 | 1318 |
if (!error && !MANDLOCK(vp, va.va_mode) && |
1319 |
(!is_system_labeled() || admin_low_client || |
|
1320 |
bldominates(clabel, slabel))) |
|
| 0 | 1321 |
resp->access |= ACCESS4_EXECUTE; |
1322 |
resp->supported |= ACCESS4_EXECUTE; |
|
1323 |
} |
|
1324 |
||
| 1676 | 1325 |
if (is_system_labeled() && !admin_low_client) |
1326 |
label_rele(tslabel); |
|
1327 |
||
| 0 | 1328 |
*cs->statusp = resp->status = NFS4_OK; |
1329 |
} |
|
1330 |
||
1331 |
/* ARGSUSED */ |
|
1332 |
static void |
|
1333 |
rfs4_op_commit(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
1334 |
struct compound_state *cs) |
|
1335 |
{
|
|
1336 |
COMMIT4args *args = &argop->nfs_argop4_u.opcommit; |
|
1337 |
COMMIT4res *resp = &resop->nfs_resop4_u.opcommit; |
|
1338 |
int error; |
|
1339 |
vnode_t *vp = cs->vp; |
|
1340 |
cred_t *cr = cs->cr; |
|
1341 |
vattr_t va; |
|
1342 |
||
1343 |
if (vp == NULL) {
|
|
1344 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
1345 |
return; |
|
1346 |
} |
|
1347 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
1348 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
1349 |
return; |
|
1350 |
} |
|
1351 |
||
1352 |
if (args->offset + args->count < args->offset) {
|
|
1353 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
1354 |
return; |
|
1355 |
} |
|
1356 |
||
1357 |
va.va_mask = AT_UID; |
|
1358 |
error = VOP_GETATTR(vp, &va, 0, cr); |
|
1359 |
||
1360 |
/* |
|
1361 |
* If we can't get the attributes, then we can't do the |
|
1362 |
* right access checking. So, we'll fail the request. |
|
1363 |
*/ |
|
1364 |
if (error) {
|
|
1365 |
*cs->statusp = resp->status = puterrno4(error); |
|
1366 |
return; |
|
1367 |
} |
|
1368 |
if (rdonly4(cs->exi, cs->vp, req)) {
|
|
1369 |
*cs->statusp = resp->status = NFS4ERR_ROFS; |
|
1370 |
return; |
|
1371 |
} |
|
1372 |
||
1373 |
if (vp->v_type != VREG) {
|
|
1374 |
if (vp->v_type == VDIR) |
|
1375 |
resp->status = NFS4ERR_ISDIR; |
|
1376 |
else |
|
1377 |
resp->status = NFS4ERR_INVAL; |
|
1378 |
*cs->statusp = resp->status; |
|
1379 |
return; |
|
1380 |
} |
|
1381 |
||
1382 |
if (crgetuid(cr) != va.va_uid && |
|
1383 |
(error = VOP_ACCESS(vp, VWRITE, 0, cs->cr))) {
|
|
1384 |
*cs->statusp = resp->status = puterrno4(error); |
|
1385 |
return; |
|
1386 |
} |
|
1387 |
||
1388 |
error = VOP_PUTPAGE(vp, args->offset, args->count, 0, cr); |
|
1389 |
if (!error) |
|
1390 |
error = VOP_FSYNC(vp, FNODSYNC, cr); |
|
1391 |
||
1392 |
if (error) {
|
|
1393 |
*cs->statusp = resp->status = puterrno4(error); |
|
1394 |
return; |
|
1395 |
} |
|
1396 |
||
1397 |
*cs->statusp = resp->status = NFS4_OK; |
|
1398 |
resp->writeverf = Write4verf; |
|
1399 |
} |
|
1400 |
||
1401 |
/* |
|
1402 |
* rfs4_op_mknod is called from rfs4_op_create after all initial verification |
|
1403 |
* was completed. It does the nfsv4 create for special files. |
|
1404 |
*/ |
|
1405 |
/* ARGSUSED */ |
|
1406 |
static vnode_t * |
|
1407 |
do_rfs4_op_mknod(CREATE4args *args, CREATE4res *resp, struct svc_req *req, |
|
1408 |
struct compound_state *cs, vattr_t *vap, char *nm) |
|
1409 |
{
|
|
1410 |
int error; |
|
1411 |
cred_t *cr = cs->cr; |
|
1412 |
vnode_t *dvp = cs->vp; |
|
1413 |
vnode_t *vp = NULL; |
|
1414 |
int mode; |
|
1415 |
enum vcexcl excl; |
|
1416 |
||
1417 |
switch (args->type) {
|
|
1418 |
case NF4CHR: |
|
1419 |
case NF4BLK: |
|
1420 |
if (secpolicy_sys_devices(cr) != 0) {
|
|
1421 |
*cs->statusp = resp->status = NFS4ERR_PERM; |
|
1422 |
return (NULL); |
|
1423 |
} |
|
1424 |
if (args->type == NF4CHR) |
|
1425 |
vap->va_type = VCHR; |
|
1426 |
else |
|
1427 |
vap->va_type = VBLK; |
|
1428 |
vap->va_rdev = makedevice(args->ftype4_u.devdata.specdata1, |
|
1429 |
args->ftype4_u.devdata.specdata2); |
|
1430 |
vap->va_mask |= AT_RDEV; |
|
1431 |
break; |
|
1432 |
case NF4SOCK: |
|
1433 |
vap->va_type = VSOCK; |
|
1434 |
break; |
|
1435 |
case NF4FIFO: |
|
1436 |
vap->va_type = VFIFO; |
|
1437 |
break; |
|
1438 |
default: |
|
1439 |
*cs->statusp = resp->status = NFS4ERR_BADTYPE; |
|
1440 |
return (NULL); |
|
1441 |
} |
|
1442 |
||
1443 |
/* |
|
1444 |
* Must specify the mode. |
|
1445 |
*/ |
|
1446 |
if (!(vap->va_mask & AT_MODE)) {
|
|
1447 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
1448 |
return (NULL); |
|
1449 |
} |
|
1450 |
||
1451 |
excl = EXCL; |
|
1452 |
||
1453 |
mode = 0; |
|
1454 |
||
1455 |
error = VOP_CREATE(dvp, nm, vap, excl, mode, &vp, cr, 0); |
|
1456 |
if (error) {
|
|
1457 |
*cs->statusp = resp->status = puterrno4(error); |
|
1458 |
return (NULL); |
|
1459 |
} |
|
1460 |
return (vp); |
|
1461 |
} |
|
1462 |
||
1463 |
/* |
|
1464 |
* nfsv4 create is used to create non-regular files. For regular files, |
|
1465 |
* use nfsv4 open. |
|
1466 |
*/ |
|
1467 |
/* ARGSUSED */ |
|
1468 |
static void |
|
1469 |
rfs4_op_create(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
1470 |
struct compound_state *cs) |
|
1471 |
{
|
|
1472 |
CREATE4args *args = &argop->nfs_argop4_u.opcreate; |
|
1473 |
CREATE4res *resp = &resop->nfs_resop4_u.opcreate; |
|
1474 |
int error; |
|
1475 |
struct vattr bva, iva, iva2, ava, *vap; |
|
1476 |
cred_t *cr = cs->cr; |
|
1477 |
vnode_t *dvp = cs->vp; |
|
1478 |
vnode_t *vp = NULL; |
|
1479 |
char *nm, *lnm; |
|
1480 |
uint_t len, llen; |
|
1481 |
int syncval = 0; |
|
1482 |
struct nfs4_svgetit_arg sarg; |
|
1483 |
struct nfs4_ntov_table ntov; |
|
1484 |
struct statvfs64 sb; |
|
1485 |
nfsstat4 status; |
|
1486 |
||
1487 |
resp->attrset = 0; |
|
1488 |
||
1489 |
if (dvp == NULL) {
|
|
1490 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
1491 |
return; |
|
1492 |
} |
|
1493 |
||
1494 |
/* |
|
1495 |
* If there is an unshared filesystem mounted on this vnode, |
|
1496 |
* do not allow to create an object in this directory. |
|
1497 |
*/ |
|
1498 |
if (vn_ismntpt(dvp)) {
|
|
1499 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
1500 |
return; |
|
1501 |
} |
|
1502 |
||
1503 |
/* Verify that type is correct */ |
|
1504 |
switch (args->type) {
|
|
1505 |
case NF4LNK: |
|
1506 |
case NF4BLK: |
|
1507 |
case NF4CHR: |
|
1508 |
case NF4SOCK: |
|
1509 |
case NF4FIFO: |
|
1510 |
case NF4DIR: |
|
1511 |
break; |
|
1512 |
default: |
|
1513 |
*cs->statusp = resp->status = NFS4ERR_BADTYPE; |
|
1514 |
return; |
|
1515 |
}; |
|
1516 |
||
1517 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
1518 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
1519 |
return; |
|
1520 |
} |
|
1521 |
if (dvp->v_type != VDIR) {
|
|
1522 |
*cs->statusp = resp->status = NFS4ERR_NOTDIR; |
|
1523 |
return; |
|
1524 |
} |
|
1525 |
if (!utf8_dir_verify(&args->objname)) {
|
|
1526 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
1527 |
return; |
|
1528 |
} |
|
1529 |
||
1530 |
if (rdonly4(cs->exi, cs->vp, req)) {
|
|
1531 |
*cs->statusp = resp->status = NFS4ERR_ROFS; |
|
1532 |
return; |
|
1533 |
} |
|
1534 |
||
1535 |
/* |
|
1536 |
* Name of newly created object |
|
1537 |
*/ |
|
1538 |
nm = utf8_to_fn(&args->objname, &len, NULL); |
|
1539 |
if (nm == NULL) {
|
|
1540 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
1541 |
return; |
|
1542 |
} |
|
1543 |
||
1544 |
if (len > MAXNAMELEN) {
|
|
1545 |
*cs->statusp = resp->status = NFS4ERR_NAMETOOLONG; |
|
1546 |
kmem_free(nm, len); |
|
1547 |
return; |
|
1548 |
} |
|
1549 |
||
1550 |
resp->attrset = 0; |
|
1551 |
||
1552 |
sarg.sbp = &sb; |
|
1553 |
nfs4_ntov_table_init(&ntov); |
|
1554 |
||
1555 |
status = do_rfs4_set_attrs(&resp->attrset, |
|
1556 |
&args->createattrs, cs, &sarg, |
|
1557 |
&ntov, NFS4ATTR_SETIT); |
|
1558 |
||
1559 |
if (sarg.vap->va_mask == 0 && status == NFS4_OK) |
|
1560 |
status = NFS4ERR_INVAL; |
|
1561 |
||
1562 |
if (status != NFS4_OK) {
|
|
1563 |
*cs->statusp = resp->status = status; |
|
1564 |
kmem_free(nm, len); |
|
1565 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
1566 |
resp->attrset = 0; |
|
1567 |
return; |
|
1568 |
} |
|
1569 |
||
1570 |
/* Get "before" change value */ |
|
1571 |
bva.va_mask = AT_CTIME|AT_SEQ; |
|
1572 |
error = VOP_GETATTR(dvp, &bva, 0, cr); |
|
1573 |
if (error) {
|
|
1574 |
*cs->statusp = resp->status = puterrno4(error); |
|
1575 |
kmem_free(nm, len); |
|
1576 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
1577 |
resp->attrset = 0; |
|
1578 |
return; |
|
1579 |
} |
|
1580 |
NFS4_SET_FATTR4_CHANGE(resp->cinfo.before, bva.va_ctime) |
|
1581 |
||
1582 |
vap = sarg.vap; |
|
1583 |
||
1584 |
/* |
|
1585 |
* Set default initial values for attributes when not specified |
|
1586 |
* in createattrs. |
|
1587 |
*/ |
|
1588 |
if ((vap->va_mask & AT_UID) == 0) {
|
|
1589 |
vap->va_uid = crgetuid(cr); |
|
1590 |
vap->va_mask |= AT_UID; |
|
1591 |
} |
|
1592 |
if ((vap->va_mask & AT_GID) == 0) {
|
|
1593 |
vap->va_gid = crgetgid(cr); |
|
1594 |
vap->va_mask |= AT_GID; |
|
1595 |
} |
|
1596 |
||
1597 |
vap->va_mask |= AT_TYPE; |
|
1598 |
switch (args->type) {
|
|
1599 |
case NF4DIR: |
|
1600 |
vap->va_type = VDIR; |
|
1601 |
if ((vap->va_mask & AT_MODE) == 0) {
|
|
1602 |
vap->va_mode = 0700; /* default: owner rwx only */ |
|
1603 |
vap->va_mask |= AT_MODE; |
|
1604 |
} |
|
1605 |
error = VOP_MKDIR(dvp, nm, vap, &vp, cr); |
|
1606 |
if (error) |
|
1607 |
break; |
|
1608 |
||
1609 |
/* |
|
1610 |
* Get the initial "after" sequence number, if it fails, |
|
1611 |
* set to zero |
|
1612 |
*/ |
|
1613 |
iva.va_mask = AT_SEQ; |
|
1614 |
if (VOP_GETATTR(dvp, &iva, 0, cs->cr)) |
|
1615 |
iva.va_seq = 0; |
|
1616 |
break; |
|
1617 |
case NF4LNK: |
|
1618 |
vap->va_type = VLNK; |
|
1619 |
if ((vap->va_mask & AT_MODE) == 0) {
|
|
1620 |
vap->va_mode = 0700; /* default: owner rwx only */ |
|
1621 |
vap->va_mask |= AT_MODE; |
|
1622 |
} |
|
1623 |
||
1624 |
/* |
|
1625 |
* symlink names must be treated as data |
|
1626 |
*/ |
|
1627 |
lnm = utf8_to_str(&args->ftype4_u.linkdata, &llen, NULL); |
|
1628 |
||
1629 |
if (lnm == NULL) {
|
|
1630 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
1631 |
kmem_free(nm, len); |
|
1632 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
1633 |
resp->attrset = 0; |
|
1634 |
return; |
|
1635 |
} |
|
1636 |
||
1637 |
if (llen > MAXPATHLEN) {
|
|
1638 |
*cs->statusp = resp->status = NFS4ERR_NAMETOOLONG; |
|
1639 |
kmem_free(nm, len); |
|
1640 |
kmem_free(lnm, llen); |
|
1641 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
1642 |
resp->attrset = 0; |
|
1643 |
return; |
|
1644 |
} |
|
1645 |
||
1646 |
error = VOP_SYMLINK(dvp, nm, vap, lnm, cr); |
|
1647 |
if (lnm != NULL) |
|
1648 |
kmem_free(lnm, llen); |
|
1649 |
if (error) |
|
1650 |
break; |
|
1651 |
||
1652 |
/* |
|
1653 |
* Get the initial "after" sequence number, if it fails, |
|
1654 |
* set to zero |
|
1655 |
*/ |
|
1656 |
iva.va_mask = AT_SEQ; |
|
1657 |
if (VOP_GETATTR(dvp, &iva, 0, cs->cr)) |
|
1658 |
iva.va_seq = 0; |
|
1659 |
||
1660 |
error = VOP_LOOKUP(dvp, nm, &vp, NULL, 0, NULL, cr); |
|
1661 |
if (error) |
|
1662 |
break; |
|
1663 |
||
1664 |
/* |
|
1665 |
* va_seq is not safe over VOP calls, check it again |
|
1666 |
* if it has changed zero out iva to force atomic = FALSE. |
|
1667 |
*/ |
|
1668 |
iva2.va_mask = AT_SEQ; |
|
1669 |
if (VOP_GETATTR(dvp, &iva2, 0, cs->cr) || |
|
1670 |
iva2.va_seq != iva.va_seq) |
|
1671 |
iva.va_seq = 0; |
|
1672 |
break; |
|
1673 |
default: |
|
1674 |
/* |
|
1675 |
* probably a special file. |
|
1676 |
*/ |
|
1677 |
if ((vap->va_mask & AT_MODE) == 0) {
|
|
1678 |
vap->va_mode = 0600; /* default: owner rw only */ |
|
1679 |
vap->va_mask |= AT_MODE; |
|
1680 |
} |
|
1681 |
syncval = FNODSYNC; |
|
1682 |
/* |
|
1683 |
* We know this will only generate one VOP call |
|
1684 |
*/ |
|
1685 |
vp = do_rfs4_op_mknod(args, resp, req, cs, vap, nm); |
|
1686 |
||
1687 |
if (vp == NULL) {
|
|
1688 |
kmem_free(nm, len); |
|
1689 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
1690 |
resp->attrset = 0; |
|
1691 |
return; |
|
1692 |
} |
|
1693 |
||
1694 |
/* |
|
1695 |
* Get the initial "after" sequence number, if it fails, |
|
1696 |
* set to zero |
|
1697 |
*/ |
|
1698 |
iva.va_mask = AT_SEQ; |
|
1699 |
if (VOP_GETATTR(dvp, &iva, 0, cs->cr)) |
|
1700 |
iva.va_seq = 0; |
|
1701 |
||
1702 |
break; |
|
1703 |
} |
|
1704 |
kmem_free(nm, len); |
|
1705 |
||
1706 |
if (error) {
|
|
1707 |
*cs->statusp = resp->status = puterrno4(error); |
|
1708 |
} |
|
1709 |
||
1710 |
/* |
|
1711 |
* Force modified data and metadata out to stable storage. |
|
1712 |
*/ |
|
1713 |
(void) VOP_FSYNC(dvp, 0, cr); |
|
1714 |
||
1715 |
if (resp->status != NFS4_OK) {
|
|
1716 |
if (vp != NULL) |
|
1717 |
VN_RELE(vp); |
|
1718 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
1719 |
resp->attrset = 0; |
|
1720 |
return; |
|
1721 |
} |
|
1722 |
||
1723 |
/* |
|
1724 |
* Finish setup of cinfo response, "before" value already set. |
|
1725 |
* Get "after" change value, if it fails, simply return the |
|
1726 |
* before value. |
|
1727 |
*/ |
|
1728 |
ava.va_mask = AT_CTIME|AT_SEQ; |
|
1729 |
if (VOP_GETATTR(dvp, &ava, 0, cr)) {
|
|
1730 |
ava.va_ctime = bva.va_ctime; |
|
1731 |
ava.va_seq = 0; |
|
1732 |
} |
|
1733 |
NFS4_SET_FATTR4_CHANGE(resp->cinfo.after, ava.va_ctime); |
|
1734 |
||
1735 |
/* |
|
1736 |
* True verification that object was created with correct |
|
1737 |
* attrs is impossible. The attrs could have been changed |
|
1738 |
* immediately after object creation. If attributes did |
|
1739 |
* not verify, the only recourse for the server is to |
|
1740 |
* destroy the object. Maybe if some attrs (like gid) |
|
1741 |
* are set incorrectly, the object should be destroyed; |
|
1742 |
* however, seems bad as a default policy. Do we really |
|
1743 |
* want to destroy an object over one of the times not |
|
1744 |
* verifying correctly? For these reasons, the server |
|
1745 |
* currently sets bits in attrset for createattrs |
|
1746 |
* that were set; however, no verification is done. |
|
1747 |
* |
|
1748 |
* vmask_to_nmask accounts for vattr bits set on create |
|
1749 |
* [do_rfs4_set_attrs() only sets resp bits for |
|
1750 |
* non-vattr/vfs bits.] |
|
1751 |
* Mask off any bits set by default so as not to return |
|
1752 |
* more attrset bits than were requested in createattrs |
|
1753 |
*/ |
|
1754 |
nfs4_vmask_to_nmask(sarg.vap->va_mask, &resp->attrset); |
|
1755 |
resp->attrset &= args->createattrs.attrmask; |
|
1756 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
1757 |
||
1758 |
error = makefh4(&cs->fh, vp, cs->exi); |
|
1759 |
if (error) {
|
|
1760 |
*cs->statusp = resp->status = puterrno4(error); |
|
1761 |
} |
|
1762 |
||
1763 |
/* |
|
1764 |
* The cinfo.atomic = TRUE only if we got no errors, we have |
|
1765 |
* non-zero va_seq's, and it has incremented by exactly one |
|
1766 |
* during the creation and it didn't change during the VOP_LOOKUP |
|
1767 |
* or VOP_FSYNC. |
|
1768 |
*/ |
|
1769 |
if (!error && bva.va_seq && iva.va_seq && ava.va_seq && |
|
1770 |
iva.va_seq == (bva.va_seq + 1) && |
|
1771 |
iva.va_seq == ava.va_seq) |
|
1772 |
resp->cinfo.atomic = TRUE; |
|
1773 |
else |
|
1774 |
resp->cinfo.atomic = FALSE; |
|
1775 |
||
1776 |
(void) VOP_FSYNC(vp, syncval, cr); |
|
1777 |
||
1778 |
if (resp->status != NFS4_OK) {
|
|
1779 |
VN_RELE(vp); |
|
1780 |
return; |
|
1781 |
} |
|
1782 |
if (cs->vp) |
|
1783 |
VN_RELE(cs->vp); |
|
1784 |
||
1785 |
cs->vp = vp; |
|
1786 |
*cs->statusp = resp->status = NFS4_OK; |
|
1787 |
} |
|
1788 |
||
1789 |
||
1790 |
/*ARGSUSED*/ |
|
1791 |
static void |
|
1792 |
rfs4_op_delegreturn(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
1793 |
struct compound_state *cs) |
|
1794 |
{
|
|
1795 |
DELEGRETURN4args *args = &argop->nfs_argop4_u.opdelegreturn; |
|
1796 |
DELEGRETURN4res *resp = &resop->nfs_resop4_u.opdelegreturn; |
|
1797 |
rfs4_deleg_state_t *dsp; |
|
1798 |
nfsstat4 status; |
|
1799 |
||
1800 |
status = rfs4_get_deleg_state(&args->deleg_stateid, &dsp); |
|
1801 |
resp->status = *cs->statusp = status; |
|
1802 |
if (status != NFS4_OK) |
|
1803 |
return; |
|
1804 |
||
1805 |
/* Ensure specified filehandle matches */ |
|
1806 |
if (cs->vp != dsp->finfo->vp) {
|
|
1807 |
resp->status = *cs->statusp = NFS4ERR_BAD_STATEID; |
|
1808 |
} else |
|
1809 |
rfs4_return_deleg(dsp, FALSE); |
|
1810 |
||
1811 |
rfs4_update_lease(dsp->client); |
|
1812 |
||
1813 |
rfs4_deleg_state_rele(dsp); |
|
1814 |
} |
|
1815 |
||
1816 |
/* |
|
1817 |
* Check to see if a given "flavor" is an explicitly shared flavor. |
|
1818 |
* The assumption of this routine is the "flavor" is already a valid |
|
1819 |
* flavor in the secinfo list of "exi". |
|
1820 |
* |
|
1821 |
* e.g. |
|
1822 |
* # share -o sec=flavor1 /export |
|
1823 |
* # share -o sec=flavor2 /export/home |
|
1824 |
* |
|
1825 |
* flavor2 is not an explicitly shared flavor for /export, |
|
1826 |
* however it is in the secinfo list for /export thru the |
|
1827 |
* server namespace setup. |
|
1828 |
*/ |
|
1829 |
int |
|
1830 |
is_exported_sec(int flavor, struct exportinfo *exi) |
|
1831 |
{
|
|
1832 |
int i; |
|
1833 |
struct secinfo *sp; |
|
1834 |
||
1835 |
sp = exi->exi_export.ex_secinfo; |
|
1836 |
for (i = 0; i < exi->exi_export.ex_seccnt; i++) {
|
|
1837 |
if (flavor == sp[i].s_secinfo.sc_nfsnum || |
|
1838 |
sp[i].s_secinfo.sc_nfsnum == AUTH_NONE) {
|
|
1839 |
return (SEC_REF_EXPORTED(&sp[i])); |
|
1840 |
} |
|
1841 |
} |
|
1842 |
||
1843 |
/* Should not reach this point based on the assumption */ |
|
1844 |
return (0); |
|
1845 |
} |
|
1846 |
||
1847 |
/* |
|
1848 |
* Check if the security flavor used in the request matches what is |
|
1849 |
* required at the export point or at the root pseudo node (exi_root). |
|
1850 |
* |
|
1851 |
* returns 1 if there's a match or if exported with AUTH_NONE; 0 otherwise. |
|
1852 |
* |
|
1853 |
*/ |
|
1854 |
static int |
|
1855 |
secinfo_match_or_authnone(struct compound_state *cs) |
|
1856 |
{
|
|
1857 |
int i; |
|
1858 |
struct secinfo *sp; |
|
1859 |
||
1860 |
/* |
|
1861 |
* Check cs->nfsflavor (from the request) against |
|
1862 |
* the current export data in cs->exi. |
|
1863 |
*/ |
|
1864 |
sp = cs->exi->exi_export.ex_secinfo; |
|
1865 |
for (i = 0; i < cs->exi->exi_export.ex_seccnt; i++) {
|
|
1866 |
if (cs->nfsflavor == sp[i].s_secinfo.sc_nfsnum || |
|
1867 |
sp[i].s_secinfo.sc_nfsnum == AUTH_NONE) |
|
1868 |
return (1); |
|
1869 |
} |
|
1870 |
||
1871 |
return (0); |
|
1872 |
} |
|
1873 |
||
1874 |
/* |
|
1875 |
* Check the access authority for the client and return the correct error. |
|
1876 |
*/ |
|
1877 |
nfsstat4 |
|
1878 |
call_checkauth4(struct compound_state *cs, struct svc_req *req) |
|
1879 |
{
|
|
1880 |
int authres; |
|
1881 |
||
1882 |
/* |
|
1883 |
* First, check if the security flavor used in the request |
|
1884 |
* are among the flavors set in the server namespace. |
|
1885 |
*/ |
|
1886 |
if (!secinfo_match_or_authnone(cs)) {
|
|
1887 |
*cs->statusp = NFS4ERR_WRONGSEC; |
|
1888 |
return (*cs->statusp); |
|
1889 |
} |
|
1890 |
||
1891 |
authres = checkauth4(cs, req); |
|
1892 |
||
1893 |
if (authres > 0) {
|
|
1894 |
*cs->statusp = NFS4_OK; |
|
1895 |
if (! (cs->access & CS_ACCESS_LIMITED)) |
|
1896 |
cs->access = CS_ACCESS_OK; |
|
1897 |
} else if (authres == 0) {
|
|
1898 |
*cs->statusp = NFS4ERR_ACCESS; |
|
1899 |
} else if (authres == -2) {
|
|
1900 |
*cs->statusp = NFS4ERR_WRONGSEC; |
|
1901 |
} else {
|
|
1902 |
*cs->statusp = NFS4ERR_DELAY; |
|
1903 |
} |
|
1904 |
return (*cs->statusp); |
|
1905 |
} |
|
1906 |
||
1907 |
/* |
|
1908 |
* bitmap4_to_attrmask is called by getattr and readdir. |
|
1909 |
* It sets up the vattr mask and determines whether vfsstat call is needed |
|
1910 |
* based on the input bitmap. |
|
1911 |
* Returns nfsv4 status. |
|
1912 |
*/ |
|
1913 |
static nfsstat4 |
|
1914 |
bitmap4_to_attrmask(bitmap4 breq, struct nfs4_svgetit_arg *sargp) |
|
1915 |
{
|
|
1916 |
int i; |
|
1917 |
uint_t va_mask; |
|
1918 |
struct statvfs64 *sbp = sargp->sbp; |
|
1919 |
||
1920 |
sargp->sbp = NULL; |
|
1921 |
sargp->flag = 0; |
|
1922 |
sargp->rdattr_error = NFS4_OK; |
|
1923 |
sargp->mntdfid_set = FALSE; |
|
1924 |
if (sargp->cs->vp) |
|
1925 |
sargp->xattr = get_fh4_flag(&sargp->cs->fh, |
|
1926 |
FH4_ATTRDIR | FH4_NAMEDATTR); |
|
1927 |
else |
|
1928 |
sargp->xattr = 0; |
|
1929 |
||
1930 |
/* |
|
1931 |
* Set rdattr_error_req to true if return error per |
|
1932 |
* failed entry rather than fail the readdir. |
|
1933 |
*/ |
|
1934 |
if (breq & FATTR4_RDATTR_ERROR_MASK) |
|
1935 |
sargp->rdattr_error_req = 1; |
|
1936 |
else |
|
1937 |
sargp->rdattr_error_req = 0; |
|
1938 |
||
1939 |
/* |
|
1940 |
* generate the va_mask |
|
1941 |
* Handle the easy cases first |
|
1942 |
*/ |
|
1943 |
switch (breq) {
|
|
1944 |
case NFS4_NTOV_ATTR_MASK: |
|
1945 |
sargp->vap->va_mask = NFS4_NTOV_ATTR_AT_MASK; |
|
1946 |
return (NFS4_OK); |
|
1947 |
||
1948 |
case NFS4_FS_ATTR_MASK: |
|
1949 |
sargp->vap->va_mask = NFS4_FS_ATTR_AT_MASK; |
|
1950 |
sargp->sbp = sbp; |
|
1951 |
return (NFS4_OK); |
|
1952 |
||
1953 |
case NFS4_NTOV_ATTR_CACHE_MASK: |
|
1954 |
sargp->vap->va_mask = NFS4_NTOV_ATTR_CACHE_AT_MASK; |
|
1955 |
return (NFS4_OK); |
|
1956 |
||
1957 |
case FATTR4_LEASE_TIME_MASK: |
|
1958 |
sargp->vap->va_mask = 0; |
|
1959 |
return (NFS4_OK); |
|
1960 |
||
1961 |
default: |
|
1962 |
va_mask = 0; |
|
1963 |
for (i = 0; i < nfs4_ntov_map_size; i++) {
|
|
1964 |
if ((breq & nfs4_ntov_map[i].fbit) && |
|
1965 |
nfs4_ntov_map[i].vbit) |
|
1966 |
va_mask |= nfs4_ntov_map[i].vbit; |
|
1967 |
} |
|
1968 |
||
1969 |
/* |
|
1970 |
* Check is vfsstat is needed |
|
1971 |
*/ |
|
1972 |
if (breq & NFS4_FS_ATTR_MASK) |
|
1973 |
sargp->sbp = sbp; |
|
1974 |
||
1975 |
sargp->vap->va_mask = va_mask; |
|
1976 |
return (NFS4_OK); |
|
1977 |
} |
|
1978 |
/* NOTREACHED */ |
|
1979 |
} |
|
1980 |
||
1981 |
/* |
|
1982 |
* bitmap4_get_sysattrs is called by getattr and readdir. |
|
1983 |
* It calls both VOP_GETATTR and VFS_STATVFS calls to get the attrs. |
|
1984 |
* Returns nfsv4 status. |
|
1985 |
*/ |
|
1986 |
static nfsstat4 |
|
1987 |
bitmap4_get_sysattrs(struct nfs4_svgetit_arg *sargp) |
|
1988 |
{
|
|
1989 |
int error; |
|
1990 |
struct compound_state *cs = sargp->cs; |
|
1991 |
vnode_t *vp = cs->vp; |
|
1992 |
||
1993 |
if (sargp->sbp != NULL) {
|
|
1994 |
if (error = VFS_STATVFS(vp->v_vfsp, sargp->sbp)) {
|
|
1995 |
sargp->sbp = NULL; /* to identify error */ |
|
1996 |
return (puterrno4(error)); |
|
1997 |
} |
|
1998 |
} |
|
1999 |
||
2000 |
return (rfs4_vop_getattr(vp, sargp->vap, 0, cs->cr)); |
|
2001 |
} |
|
2002 |
||
2003 |
static void |
|
2004 |
nfs4_ntov_table_init(struct nfs4_ntov_table *ntovp) |
|
2005 |
{
|
|
2006 |
ntovp->na = kmem_zalloc(sizeof (union nfs4_attr_u) * nfs4_ntov_map_size, |
|
2007 |
KM_SLEEP); |
|
2008 |
ntovp->attrcnt = 0; |
|
2009 |
ntovp->vfsstat = FALSE; |
|
2010 |
} |
|
2011 |
||
2012 |
static void |
|
2013 |
nfs4_ntov_table_free(struct nfs4_ntov_table *ntovp, |
|
2014 |
struct nfs4_svgetit_arg *sargp) |
|
2015 |
{
|
|
2016 |
int i; |
|
2017 |
union nfs4_attr_u *na; |
|
2018 |
uint8_t *amap; |
|
2019 |
||
2020 |
/* |
|
2021 |
* XXX Should do the same checks for whether the bit is set |
|
2022 |
*/ |
|
2023 |
for (i = 0, na = ntovp->na, amap = ntovp->amap; |
|
2024 |
i < ntovp->attrcnt; i++, na++, amap++) {
|
|
2025 |
(void) (*nfs4_ntov_map[*amap].sv_getit)( |
|
2026 |
NFS4ATTR_FREEIT, sargp, na); |
|
2027 |
} |
|
2028 |
if ((sargp->op == NFS4ATTR_SETIT) || (sargp->op == NFS4ATTR_VERIT)) {
|
|
2029 |
/* |
|
2030 |
* xdr_free for getattr will be done later |
|
2031 |
*/ |
|
2032 |
for (i = 0, na = ntovp->na, amap = ntovp->amap; |
|
2033 |
i < ntovp->attrcnt; i++, na++, amap++) {
|
|
2034 |
xdr_free(nfs4_ntov_map[*amap].xfunc, (caddr_t)na); |
|
2035 |
} |
|
2036 |
} |
|
2037 |
kmem_free(ntovp->na, sizeof (union nfs4_attr_u) * nfs4_ntov_map_size); |
|
2038 |
} |
|
2039 |
||
2040 |
/* |
|
2041 |
* do_rfs4_op_getattr gets the system attrs and converts into fattr4. |
|
2042 |
*/ |
|
2043 |
static nfsstat4 |
|
2044 |
do_rfs4_op_getattr(bitmap4 breq, fattr4 *fattrp, |
|
2045 |
struct nfs4_svgetit_arg *sargp) |
|
2046 |
{
|
|
2047 |
int error = 0; |
|
2048 |
int i, k; |
|
2049 |
struct nfs4_ntov_table ntov; |
|
2050 |
XDR xdr; |
|
2051 |
ulong_t xdr_size; |
|
2052 |
char *xdr_attrs; |
|
2053 |
nfsstat4 status = NFS4_OK; |
|
2054 |
nfsstat4 prev_rdattr_error = sargp->rdattr_error; |
|
2055 |
union nfs4_attr_u *na; |
|
2056 |
uint8_t *amap; |
|
2057 |
||
2058 |
sargp->op = NFS4ATTR_GETIT; |
|
2059 |
sargp->flag = 0; |
|
2060 |
||
2061 |
fattrp->attrmask = 0; |
|
2062 |
/* if no bits requested, then return empty fattr4 */ |
|
2063 |
if (breq == 0) {
|
|
2064 |
fattrp->attrlist4_len = 0; |
|
2065 |
fattrp->attrlist4 = NULL; |
|
2066 |
return (NFS4_OK); |
|
2067 |
} |
|
2068 |
||
2069 |
/* |
|
2070 |
* return NFS4ERR_INVAL when client requests write-only attrs |
|
2071 |
*/ |
|
2072 |
if (breq & (FATTR4_TIME_ACCESS_SET_MASK | FATTR4_TIME_MODIFY_SET_MASK)) |
|
2073 |
return (NFS4ERR_INVAL); |
|
2074 |
||
2075 |
nfs4_ntov_table_init(&ntov); |
|
2076 |
na = ntov.na; |
|
2077 |
amap = ntov.amap; |
|
2078 |
||
2079 |
/* |
|
2080 |
* Now loop to get or verify the attrs |
|
2081 |
*/ |
|
2082 |
for (i = 0; i < nfs4_ntov_map_size; i++) {
|
|
2083 |
if (breq & nfs4_ntov_map[i].fbit) {
|
|
2084 |
if ((*nfs4_ntov_map[i].sv_getit)( |
|
2085 |
NFS4ATTR_SUPPORTED, sargp, NULL) == 0) {
|
|
2086 |
||
2087 |
error = (*nfs4_ntov_map[i].sv_getit)( |
|
2088 |
NFS4ATTR_GETIT, sargp, na); |
|
2089 |
||
2090 |
/* |
|
2091 |
* Possible error values: |
|
2092 |
* >0 if sv_getit failed to |
|
2093 |
* get the attr; 0 if succeeded; |
|
2094 |
* <0 if rdattr_error and the |
|
2095 |
* attribute cannot be returned. |
|
2096 |
*/ |
|
2097 |
if (error && !(sargp->rdattr_error_req)) |
|
2098 |
goto done; |
|
2099 |
/* |
|
2100 |
* If error then just for entry |
|
2101 |
*/ |
|
2102 |
if (error == 0) {
|
|
2103 |
fattrp->attrmask |= |
|
2104 |
nfs4_ntov_map[i].fbit; |
|
2105 |
*amap++ = |
|
2106 |
(uint8_t)nfs4_ntov_map[i].nval; |
|
2107 |
na++; |
|
2108 |
(ntov.attrcnt)++; |
|
2109 |
} else if ((error > 0) && |
|
2110 |
(sargp->rdattr_error == NFS4_OK)) {
|
|
2111 |
sargp->rdattr_error = puterrno4(error); |
|
2112 |
} |
|
2113 |
error = 0; |
|
2114 |
} |
|
2115 |
} |
|
2116 |
} |
|
2117 |
||
2118 |
/* |
|
2119 |
* If rdattr_error was set after the return value for it was assigned, |
|
2120 |
* update it. |
|
2121 |
*/ |
|
2122 |
if (prev_rdattr_error != sargp->rdattr_error) {
|
|
2123 |
na = ntov.na; |
|
2124 |
amap = ntov.amap; |
|
2125 |
for (i = 0; i < ntov.attrcnt; i++, na++, amap++) {
|
|
2126 |
k = *amap; |
|
2127 |
if (k < FATTR4_RDATTR_ERROR) {
|
|
2128 |
continue; |
|
2129 |
} |
|
2130 |
if ((k == FATTR4_RDATTR_ERROR) && |
|
2131 |
((*nfs4_ntov_map[k].sv_getit)( |
|
2132 |
NFS4ATTR_SUPPORTED, sargp, NULL) == 0)) {
|
|
2133 |
||
2134 |
(void) (*nfs4_ntov_map[k].sv_getit)( |
|
2135 |
NFS4ATTR_GETIT, sargp, na); |
|
2136 |
} |
|
2137 |
break; |
|
2138 |
} |
|
2139 |
} |
|
2140 |
||
2141 |
xdr_size = 0; |
|
2142 |
na = ntov.na; |
|
2143 |
amap = ntov.amap; |
|
2144 |
for (i = 0; i < ntov.attrcnt; i++, na++, amap++) {
|
|
2145 |
xdr_size += xdr_sizeof(nfs4_ntov_map[*amap].xfunc, na); |
|
2146 |
} |
|
2147 |
||
2148 |
fattrp->attrlist4_len = xdr_size; |
|
2149 |
if (xdr_size) {
|
|
2150 |
/* freed by rfs4_op_getattr_free() */ |
|
2151 |
fattrp->attrlist4 = xdr_attrs = kmem_zalloc(xdr_size, KM_SLEEP); |
|
2152 |
||
2153 |
xdrmem_create(&xdr, xdr_attrs, xdr_size, XDR_ENCODE); |
|
2154 |
||
2155 |
na = ntov.na; |
|
2156 |
amap = ntov.amap; |
|
2157 |
for (i = 0; i < ntov.attrcnt; i++, na++, amap++) {
|
|
2158 |
if (!(*nfs4_ntov_map[*amap].xfunc)(&xdr, na)) {
|
|
2159 |
cmn_err(CE_WARN, "do_rfs4_op_getattr: xdr " |
|
2160 |
"encode of attribute %d failed\n", |
|
2161 |
*amap); |
|
2162 |
status = NFS4ERR_SERVERFAULT; |
|
2163 |
break; |
|
2164 |
} |
|
2165 |
} |
|
2166 |
/* xdrmem_destroy(&xdrs); */ /* NO-OP */ |
|
2167 |
} else {
|
|
2168 |
fattrp->attrlist4 = NULL; |
|
2169 |
} |
|
2170 |
done: |
|
2171 |
||
2172 |
nfs4_ntov_table_free(&ntov, sargp); |
|
2173 |
||
2174 |
if (error != 0) |
|
2175 |
status = puterrno4(error); |
|
2176 |
||
2177 |
return (status); |
|
2178 |
} |
|
2179 |
||
2180 |
/* ARGSUSED */ |
|
2181 |
static void |
|
2182 |
rfs4_op_getattr(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
2183 |
struct compound_state *cs) |
|
2184 |
{
|
|
2185 |
GETATTR4args *args = &argop->nfs_argop4_u.opgetattr; |
|
2186 |
GETATTR4res *resp = &resop->nfs_resop4_u.opgetattr; |
|
2187 |
struct nfs4_svgetit_arg sarg; |
|
2188 |
struct statvfs64 sb; |
|
2189 |
nfsstat4 status; |
|
2190 |
||
2191 |
if (cs->vp == NULL) {
|
|
2192 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
2193 |
return; |
|
2194 |
} |
|
2195 |
||
2196 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
2197 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
2198 |
return; |
|
2199 |
} |
|
2200 |
||
2201 |
sarg.sbp = &sb; |
|
2202 |
sarg.cs = cs; |
|
2203 |
||
2204 |
status = bitmap4_to_attrmask(args->attr_request, &sarg); |
|
2205 |
if (status == NFS4_OK) {
|
|
2206 |
status = bitmap4_get_sysattrs(&sarg); |
|
2207 |
if (status == NFS4_OK) |
|
2208 |
status = do_rfs4_op_getattr(args->attr_request, |
|
2209 |
&resp->obj_attributes, &sarg); |
|
2210 |
} |
|
2211 |
*cs->statusp = resp->status = status; |
|
2212 |
} |
|
2213 |
||
2214 |
static void |
|
2215 |
rfs4_op_getattr_free(nfs_resop4 *resop) |
|
2216 |
{
|
|
2217 |
GETATTR4res *resp = &resop->nfs_resop4_u.opgetattr; |
|
2218 |
||
2219 |
nfs4_fattr4_free(&resp->obj_attributes); |
|
2220 |
} |
|
2221 |
||
2222 |
/* ARGSUSED */ |
|
2223 |
static void |
|
2224 |
rfs4_op_getfh(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
2225 |
struct compound_state *cs) |
|
2226 |
{
|
|
2227 |
GETFH4res *resp = &resop->nfs_resop4_u.opgetfh; |
|
2228 |
||
2229 |
if (cs->vp == NULL) {
|
|
2230 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
2231 |
return; |
|
2232 |
} |
|
2233 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
2234 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
2235 |
return; |
|
2236 |
} |
|
2237 |
||
2238 |
resp->object.nfs_fh4_val = |
|
2239 |
kmem_alloc(cs->fh.nfs_fh4_len, KM_SLEEP); |
|
2240 |
nfs_fh4_copy(&cs->fh, &resp->object); |
|
2241 |
*cs->statusp = resp->status = NFS4_OK; |
|
2242 |
} |
|
2243 |
||
2244 |
static void |
|
2245 |
rfs4_op_getfh_free(nfs_resop4 *resop) |
|
2246 |
{
|
|
2247 |
GETFH4res *resp = &resop->nfs_resop4_u.opgetfh; |
|
2248 |
||
2249 |
if (resp->status == NFS4_OK && |
|
2250 |
resp->object.nfs_fh4_val != NULL) {
|
|
2251 |
kmem_free(resp->object.nfs_fh4_val, resp->object.nfs_fh4_len); |
|
2252 |
resp->object.nfs_fh4_val = NULL; |
|
2253 |
resp->object.nfs_fh4_len = 0; |
|
2254 |
} |
|
2255 |
} |
|
2256 |
||
2257 |
/* |
|
2258 |
* illegal: args: void |
|
2259 |
* res : status (NFS4ERR_OP_ILLEGAL) |
|
2260 |
*/ |
|
2261 |
/* ARGSUSED */ |
|
2262 |
static void |
|
2263 |
rfs4_op_illegal(nfs_argop4 *argop, nfs_resop4 *resop, |
|
2264 |
struct svc_req *req, struct compound_state *cs) |
|
2265 |
{
|
|
2266 |
ILLEGAL4res *resp = &resop->nfs_resop4_u.opillegal; |
|
2267 |
||
2268 |
resop->resop = OP_ILLEGAL; |
|
2269 |
*cs->statusp = resp->status = NFS4ERR_OP_ILLEGAL; |
|
2270 |
} |
|
2271 |
||
2272 |
/* |
|
2273 |
* link: args: SAVED_FH: file, CURRENT_FH: target directory |
|
2274 |
* res: status. If success - CURRENT_FH unchanged, return change_info |
|
2275 |
*/ |
|
2276 |
/* ARGSUSED */ |
|
2277 |
static void |
|
2278 |
rfs4_op_link(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
2279 |
struct compound_state *cs) |
|
2280 |
{
|
|
2281 |
LINK4args *args = &argop->nfs_argop4_u.oplink; |
|
2282 |
LINK4res *resp = &resop->nfs_resop4_u.oplink; |
|
2283 |
int error; |
|
2284 |
vnode_t *vp; |
|
2285 |
vnode_t *dvp; |
|
2286 |
struct vattr bdva, idva, adva; |
|
2287 |
char *nm; |
|
2288 |
uint_t len; |
|
2289 |
||
2290 |
/* SAVED_FH: source object */ |
|
2291 |
vp = cs->saved_vp; |
|
2292 |
if (vp == NULL) {
|
|
2293 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
2294 |
return; |
|
2295 |
} |
|
2296 |
||
2297 |
/* CURRENT_FH: target directory */ |
|
2298 |
dvp = cs->vp; |
|
2299 |
if (dvp == NULL) {
|
|
2300 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
2301 |
return; |
|
2302 |
} |
|
2303 |
||
2304 |
/* |
|
2305 |
* If there is a non-shared filesystem mounted on this vnode, |
|
2306 |
* do not allow to link any file in this directory. |
|
2307 |
*/ |
|
2308 |
if (vn_ismntpt(dvp)) {
|
|
2309 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
2310 |
return; |
|
2311 |
} |
|
2312 |
||
2313 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
2314 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
2315 |
return; |
|
2316 |
} |
|
2317 |
||
2318 |
/* Check source object's type validity */ |
|
2319 |
if (vp->v_type == VDIR) {
|
|
2320 |
*cs->statusp = resp->status = NFS4ERR_ISDIR; |
|
2321 |
return; |
|
2322 |
} |
|
2323 |
||
2324 |
/* Check target directory's type */ |
|
2325 |
if (dvp->v_type != VDIR) {
|
|
2326 |
*cs->statusp = resp->status = NFS4ERR_NOTDIR; |
|
2327 |
return; |
|
2328 |
} |
|
2329 |
||
2330 |
if (cs->saved_exi != cs->exi) {
|
|
2331 |
*cs->statusp = resp->status = NFS4ERR_XDEV; |
|
2332 |
return; |
|
2333 |
} |
|
2334 |
||
2335 |
if (!utf8_dir_verify(&args->newname)) {
|
|
2336 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
2337 |
return; |
|
2338 |
} |
|
2339 |
||
2340 |
nm = utf8_to_fn(&args->newname, &len, NULL); |
|
2341 |
if (nm == NULL) {
|
|
2342 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
2343 |
return; |
|
2344 |
} |
|
2345 |
||
2346 |
if (len > MAXNAMELEN) {
|
|
2347 |
*cs->statusp = resp->status = NFS4ERR_NAMETOOLONG; |
|
2348 |
kmem_free(nm, len); |
|
2349 |
return; |
|
2350 |
} |
|
2351 |
||
2352 |
if (rdonly4(cs->exi, cs->vp, req)) {
|
|
2353 |
*cs->statusp = resp->status = NFS4ERR_ROFS; |
|
2354 |
kmem_free(nm, len); |
|
2355 |
return; |
|
2356 |
} |
|
2357 |
||
2358 |
/* Get "before" change value */ |
|
2359 |
bdva.va_mask = AT_CTIME|AT_SEQ; |
|
2360 |
error = VOP_GETATTR(dvp, &bdva, 0, cs->cr); |
|
2361 |
if (error) {
|
|
2362 |
*cs->statusp = resp->status = puterrno4(error); |
|
2363 |
kmem_free(nm, len); |
|
2364 |
return; |
|
2365 |
} |
|
2366 |
||
2367 |
NFS4_SET_FATTR4_CHANGE(resp->cinfo.before, bdva.va_ctime) |
|
2368 |
||
2369 |
error = VOP_LINK(dvp, vp, nm, cs->cr); |
|
2370 |
||
2371 |
kmem_free(nm, len); |
|
2372 |
||
2373 |
/* |
|
2374 |
* Get the initial "after" sequence number, if it fails, set to zero |
|
2375 |
*/ |
|
2376 |
idva.va_mask = AT_SEQ; |
|
2377 |
if (VOP_GETATTR(dvp, &idva, 0, cs->cr)) |
|
2378 |
idva.va_seq = 0; |
|
2379 |
||
2380 |
/* |
|
2381 |
* Force modified data and metadata out to stable storage. |
|
2382 |
*/ |
|
2383 |
(void) VOP_FSYNC(vp, FNODSYNC, cs->cr); |
|
2384 |
(void) VOP_FSYNC(dvp, 0, cs->cr); |
|
2385 |
||
2386 |
if (error) {
|
|
2387 |
*cs->statusp = resp->status = puterrno4(error); |
|
2388 |
return; |
|
2389 |
} |
|
2390 |
||
2391 |
/* |
|
2392 |
* Get "after" change value, if it fails, simply return the |
|
2393 |
* before value. |
|
2394 |
*/ |
|
2395 |
adva.va_mask = AT_CTIME|AT_SEQ; |
|
2396 |
if (VOP_GETATTR(dvp, &adva, 0, cs->cr)) {
|
|
2397 |
adva.va_ctime = bdva.va_ctime; |
|
2398 |
adva.va_seq = 0; |
|
2399 |
} |
|
2400 |
||
2401 |
NFS4_SET_FATTR4_CHANGE(resp->cinfo.after, adva.va_ctime) |
|
2402 |
||
2403 |
/* |
|
2404 |
* The cinfo.atomic = TRUE only if we have |
|
2405 |
* non-zero va_seq's, and it has incremented by exactly one |
|
2406 |
* during the VOP_LINK and it didn't change during the VOP_FSYNC. |
|
2407 |
*/ |
|
2408 |
if (bdva.va_seq && idva.va_seq && adva.va_seq && |
|
2409 |
idva.va_seq == (bdva.va_seq + 1) && |
|
2410 |
idva.va_seq == adva.va_seq) |
|
2411 |
resp->cinfo.atomic = TRUE; |
|
2412 |
else |
|
2413 |
resp->cinfo.atomic = FALSE; |
|
2414 |
||
2415 |
*cs->statusp = resp->status = NFS4_OK; |
|
2416 |
} |
|
2417 |
||
2418 |
/* |
|
2419 |
* Used by rfs4_op_lookup and rfs4_op_lookupp to do the actual work. |
|
2420 |
*/ |
|
2421 |
||
2422 |
/* ARGSUSED */ |
|
2423 |
static nfsstat4 |
|
2424 |
do_rfs4_op_lookup(char *nm, uint_t buflen, struct svc_req *req, |
|
2425 |
struct compound_state *cs) |
|
2426 |
{
|
|
2427 |
int error; |
|
2428 |
int different_export = 0; |
|
2429 |
vnode_t *vp, *tvp, *pre_tvp = NULL, *oldvp = NULL; |
|
2430 |
struct exportinfo *exi = NULL, *pre_exi = NULL; |
|
2431 |
nfsstat4 stat; |
|
2432 |
fid_t fid; |
|
2433 |
int attrdir, dotdot, walk; |
|
2434 |
bool_t is_newvp = FALSE; |
|
2435 |
||
2436 |
if (cs->vp->v_flag & V_XATTRDIR) {
|
|
2437 |
attrdir = 1; |
|
2438 |
ASSERT(get_fh4_flag(&cs->fh, FH4_ATTRDIR)); |
|
2439 |
} else {
|
|
2440 |
attrdir = 0; |
|
2441 |
ASSERT(! get_fh4_flag(&cs->fh, FH4_ATTRDIR)); |
|
2442 |
} |
|
2443 |
||
2444 |
dotdot = (nm[0] == '.' && nm[1] == '.' && nm[2] == '\0'); |
|
2445 |
||
2446 |
/* |
|
2447 |
* If dotdotting, then need to check whether it's |
|
2448 |
* above the root of a filesystem, or above an |
|
2449 |
* export point. |
|
2450 |
*/ |
|
2451 |
if (dotdot) {
|
|
2452 |
||
2453 |
/* |
|
2454 |
* If dotdotting at the root of a filesystem, then |
|
2455 |
* need to traverse back to the mounted-on filesystem |
|
2456 |
* and do the dotdot lookup there. |
|
2457 |
*/ |
|
2458 |
if (cs->vp->v_flag & VROOT) {
|
|
2459 |
||
2460 |
/* |
|
2461 |
* If at the system root, then can |
|
2462 |
* go up no further. |
|
2463 |
*/ |
|
2464 |
if (VN_CMP(cs->vp, rootdir)) |
|
2465 |
return (puterrno4(ENOENT)); |
|
2466 |
||
2467 |
/* |
|
2468 |
* Traverse back to the mounted-on filesystem |
|
2469 |
*/ |
|
2470 |
cs->vp = untraverse(cs->vp); |
|
2471 |
||
2472 |
/* |
|
2473 |
* Set the different_export flag so we remember |
|
2474 |
* to pick up a new exportinfo entry for |
|
2475 |
* this new filesystem. |
|
2476 |
*/ |
|
2477 |
different_export = 1; |
|
2478 |
} else {
|
|
2479 |
||
2480 |
/* |
|
2481 |
* If dotdotting above an export point then set |
|
2482 |
* the different_export to get new export info. |
|
2483 |
*/ |
|
2484 |
different_export = nfs_exported(cs->exi, cs->vp); |
|
2485 |
} |
|
2486 |
} |
|
2487 |
||
2488 |
error = VOP_LOOKUP(cs->vp, nm, &vp, NULL, 0, NULL, cs->cr); |
|
2489 |
if (error) |
|
2490 |
return (puterrno4(error)); |
|
2491 |
||
2492 |
/* |
|
2493 |
* If the vnode is in a pseudo filesystem, check whether it is visible. |
|
2494 |
* |
|
2495 |
* XXX if the vnode is a symlink and it is not visible in |
|
2496 |
* a pseudo filesystem, return ENOENT (not following symlink). |
|
2497 |
* V4 client can not mount such symlink. This is a regression |
|
2498 |
* from V2/V3. |
|
2499 |
* |
|
2500 |
* In the same exported filesystem, if the security flavor used |
|
2501 |
* is not an explicitly shared flavor, limit the view to the visible |
|
2502 |
* list entries only. This is not a WRONGSEC case because it's already |
|
2503 |
* checked via PUTROOTFH/PUTPUBFH or PUTFH. |
|
2504 |
*/ |
|
2505 |
if (!different_export && |
|
2506 |
(PSEUDO(cs->exi) || ! is_exported_sec(cs->nfsflavor, cs->exi) || |
|
2507 |
cs->access & CS_ACCESS_LIMITED)) {
|
|
2508 |
if (! nfs_visible(cs->exi, vp, &different_export)) {
|
|
2509 |
VN_RELE(vp); |
|
2510 |
return (puterrno4(ENOENT)); |
|
2511 |
} |
|
2512 |
} |
|
2513 |
||
2514 |
/* |
|
2515 |
* If it's a mountpoint, then traverse it. |
|
2516 |
*/ |
|
2517 |
if (vn_ismntpt(vp)) {
|
|
2518 |
pre_exi = cs->exi; /* save pre-traversed exportinfo */ |
|
2519 |
pre_tvp = vp; /* save pre-traversed vnode */ |
|
2520 |
||
2521 |
/* |
|
2522 |
* hold pre_tvp to counteract rele by traverse. We will |
|
2523 |
* need pre_tvp below if checkexport4 fails |
|
2524 |
*/ |
|
2525 |
VN_HOLD(pre_tvp); |
|
2526 |
tvp = vp; |
|
2527 |
if ((error = traverse(&tvp)) != 0) {
|
|
2528 |
VN_RELE(vp); |
|
2529 |
VN_RELE(pre_tvp); |
|
2530 |
return (puterrno4(error)); |
|
2531 |
} |
|
2532 |
vp = tvp; |
|
2533 |
different_export = 1; |
|
2534 |
} else if (vp->v_vfsp != cs->vp->v_vfsp) {
|
|
2535 |
/* |
|
2536 |
* The vfsp comparison is to handle the case where |
|
2537 |
* a LOFS mount is shared. lo_lookup traverses mount points, |
|
2538 |
* and NFS is unaware of local fs transistions because |
|
2539 |
* v_vfsmountedhere isn't set. For this special LOFS case, |
|
2540 |
* the dir and the obj returned by lookup will have different |
|
2541 |
* vfs ptrs. |
|
2542 |
*/ |
|
2543 |
different_export = 1; |
|
2544 |
} |
|
2545 |
||
2546 |
if (different_export) {
|
|
2547 |
||
2548 |
bzero(&fid, sizeof (fid)); |
|
2549 |
fid.fid_len = MAXFIDSZ; |
|
2550 |
error = vop_fid_pseudo(vp, &fid); |
|
2551 |
if (error) {
|
|
2552 |
VN_RELE(vp); |
|
2553 |
if (pre_tvp) |
|
2554 |
VN_RELE(pre_tvp); |
|
2555 |
return (puterrno4(error)); |
|
2556 |
} |
|
2557 |
||
2558 |
if (dotdot) |
|
2559 |
exi = nfs_vptoexi(NULL, vp, cs->cr, &walk, NULL, TRUE); |
|
2560 |
else |
|
2561 |
exi = checkexport4(&vp->v_vfsp->vfs_fsid, &fid, vp); |
|
2562 |
||
2563 |
if (exi == NULL) {
|
|
2564 |
if (pre_tvp) {
|
|
2565 |
/* |
|
2566 |
* If this vnode is a mounted-on vnode, |
|
2567 |
* but the mounted-on file system is not |
|
2568 |
* exported, send back the filehandle for |
|
2569 |
* the mounted-on vnode, not the root of |
|
2570 |
* the mounted-on file system. |
|
2571 |
*/ |
|
2572 |
VN_RELE(vp); |
|
2573 |
vp = pre_tvp; |
|
2574 |
exi = pre_exi; |
|
2575 |
} else {
|
|
2576 |
VN_RELE(vp); |
|
2577 |
return (puterrno4(EACCES)); |
|
2578 |
} |
|
2579 |
} else if (pre_tvp) {
|
|
2580 |
/* we're done with pre_tvp now. release extra hold */ |
|
2581 |
VN_RELE(pre_tvp); |
|
2582 |
} |
|
2583 |
||
2584 |
cs->exi = exi; |
|
2585 |
||
2586 |
/* |
|
2587 |
* Now we do a checkauth4. The reason is that |
|
2588 |
* this client/user may not have access to the new |
|
2589 |
* exported file system, and if he does, |
|
2590 |
* the client/user may be mapped to a different uid. |
|
2591 |
* |
|
2592 |
* We start with a new cr, because the checkauth4 done |
|
2593 |
* in the PUT*FH operation over wrote the cred's uid, |
|
2594 |
* gid, etc, and we want the real thing before calling |
|
2595 |
* checkauth4() |
|
2596 |
*/ |
|
2597 |
crfree(cs->cr); |
|
2598 |
cs->cr = crdup(cs->basecr); |
|
2599 |
||
2600 |
if (cs->vp) |
|
2601 |
oldvp = cs->vp; |
|
2602 |
cs->vp = vp; |
|
2603 |
is_newvp = TRUE; |
|
2604 |
||
2605 |
stat = call_checkauth4(cs, req); |
|
2606 |
if (stat != NFS4_OK) {
|
|
2607 |
VN_RELE(cs->vp); |
|
2608 |
cs->vp = oldvp; |
|
2609 |
return (stat); |
|
2610 |
} |
|
2611 |
} |
|
2612 |
||
| 1676 | 2613 |
/* |
2614 |
* After various NFS checks, do a label check on the path |
|
2615 |
* component. The label on this path should either be the |
|
2616 |
* global zone's label or a zone's label. We are only |
|
2617 |
* interested in the zone's label because exported files |
|
2618 |
* in global zone is accessible (though read-only) to |
|
2619 |
* clients. The exportability/visibility check is already |
|
2620 |
* done before reaching this code. |
|
2621 |
*/ |
|
2622 |
if (is_system_labeled()) {
|
|
2623 |
bslabel_t *clabel; |
|
2624 |
||
2625 |
ASSERT(req->rq_label != NULL); |
|
2626 |
clabel = req->rq_label; |
|
2627 |
DTRACE_PROBE2(tx__rfs4__log__info__oplookup__clabel, char *, |
|
2628 |
"got client label from request(1)", struct svc_req *, req); |
|
2629 |
||
2630 |
if (!blequal(&l_admin_low->tsl_label, clabel)) {
|
|
2631 |
if (!do_rfs4_label_check(clabel, vp, DOMINANCE_CHECK)) {
|
|
2632 |
error = EACCES; |
|
2633 |
goto err_out; |
|
2634 |
} |
|
2635 |
} else {
|
|
2636 |
/* |
|
2637 |
* We grant access to admin_low label clients |
|
2638 |
* only if the client is trusted, i.e. also |
|
2639 |
* running Solaris Trusted Extension. |
|
2640 |
*/ |
|
2641 |
struct sockaddr *ca; |
|
2642 |
int addr_type; |
|
2643 |
void *ipaddr; |
|
2644 |
tsol_tpc_t *tp; |
|
2645 |
||
2646 |
ca = (struct sockaddr *)svc_getrpccaller( |
|
2647 |
req->rq_xprt)->buf; |
|
2648 |
if (ca->sa_family == AF_INET) {
|
|
2649 |
addr_type = IPV4_VERSION; |
|
2650 |
ipaddr = &((struct sockaddr_in *)ca)->sin_addr; |
|
2651 |
} else if (ca->sa_family == AF_INET6) {
|
|
2652 |
addr_type = IPV6_VERSION; |
|
2653 |
ipaddr = &((struct sockaddr_in6 *) |
|
2654 |
ca)->sin6_addr; |
|
2655 |
} |
|
2656 |
tp = find_tpc(ipaddr, addr_type, B_FALSE); |
|
2657 |
if (tp == NULL || tp->tpc_tp.tp_doi != |
|
2658 |
l_admin_low->tsl_doi || tp->tpc_tp.host_type != |
|
2659 |
SUN_CIPSO) {
|
|
2660 |
error = EACCES; |
|
2661 |
goto err_out; |
|
2662 |
} |
|
2663 |
} |
|
2664 |
} |
|
2665 |
||
| 0 | 2666 |
error = makefh4(&cs->fh, vp, cs->exi); |
2667 |
||
| 1676 | 2668 |
err_out: |
| 0 | 2669 |
if (error) {
|
2670 |
if (is_newvp) {
|
|
2671 |
VN_RELE(cs->vp); |
|
2672 |
cs->vp = oldvp; |
|
2673 |
} else |
|
2674 |
VN_RELE(vp); |
|
2675 |
return (puterrno4(error)); |
|
2676 |
} |
|
2677 |
||
2678 |
if (!is_newvp) {
|
|
2679 |
if (cs->vp) |
|
2680 |
VN_RELE(cs->vp); |
|
2681 |
cs->vp = vp; |
|
2682 |
} else if (oldvp) |
|
2683 |
VN_RELE(oldvp); |
|
2684 |
||
2685 |
/* |
|
2686 |
* if did lookup on attrdir and didn't lookup .., set named |
|
2687 |
* attr fh flag |
|
2688 |
*/ |
|
2689 |
if (attrdir && ! dotdot) |
|
2690 |
set_fh4_flag(&cs->fh, FH4_NAMEDATTR); |
|
2691 |
||
2692 |
/* Assume false for now, open proc will set this */ |
|
2693 |
cs->mandlock = FALSE; |
|
2694 |
||
2695 |
return (NFS4_OK); |
|
2696 |
} |
|
2697 |
||
2698 |
/* ARGSUSED */ |
|
2699 |
static void |
|
2700 |
rfs4_op_lookup(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
2701 |
struct compound_state *cs) |
|
2702 |
{
|
|
2703 |
LOOKUP4args *args = &argop->nfs_argop4_u.oplookup; |
|
2704 |
LOOKUP4res *resp = &resop->nfs_resop4_u.oplookup; |
|
2705 |
char *nm; |
|
2706 |
uint_t len; |
|
2707 |
||
2708 |
if (cs->vp == NULL) {
|
|
2709 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
2710 |
return; |
|
2711 |
} |
|
2712 |
||
2713 |
if (cs->vp->v_type == VLNK) {
|
|
2714 |
*cs->statusp = resp->status = NFS4ERR_SYMLINK; |
|
2715 |
return; |
|
2716 |
} |
|
2717 |
||
2718 |
if (cs->vp->v_type != VDIR) {
|
|
2719 |
*cs->statusp = resp->status = NFS4ERR_NOTDIR; |
|
2720 |
return; |
|
2721 |
} |
|
2722 |
||
2723 |
if (!utf8_dir_verify(&args->objname)) {
|
|
2724 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
2725 |
return; |
|
2726 |
} |
|
2727 |
||
2728 |
nm = utf8_to_str(&args->objname, &len, NULL); |
|
2729 |
if (nm == NULL) {
|
|
2730 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
2731 |
return; |
|
2732 |
} |
|
2733 |
||
2734 |
if (len > MAXNAMELEN) {
|
|
2735 |
*cs->statusp = resp->status = NFS4ERR_NAMETOOLONG; |
|
2736 |
kmem_free(nm, len); |
|
2737 |
return; |
|
2738 |
} |
|
2739 |
||
2740 |
*cs->statusp = resp->status = do_rfs4_op_lookup(nm, len, req, cs); |
|
2741 |
||
2742 |
kmem_free(nm, len); |
|
2743 |
} |
|
2744 |
||
2745 |
/* ARGSUSED */ |
|
2746 |
static void |
|
2747 |
rfs4_op_lookupp(nfs_argop4 *args, nfs_resop4 *resop, struct svc_req *req, |
|
2748 |
struct compound_state *cs) |
|
2749 |
{
|
|
2750 |
LOOKUPP4res *resp = &resop->nfs_resop4_u.oplookupp; |
|
2751 |
||
2752 |
if (cs->vp == NULL) {
|
|
2753 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
2754 |
return; |
|
2755 |
} |
|
2756 |
||
2757 |
if (cs->vp->v_type != VDIR) {
|
|
2758 |
*cs->statusp = resp->status = NFS4ERR_NOTDIR; |
|
2759 |
return; |
|
2760 |
} |
|
2761 |
||
2762 |
*cs->statusp = resp->status = do_rfs4_op_lookup("..", 3, req, cs);
|
|
2763 |
||
2764 |
/* |
|
2765 |
* From NFSV4 Specification, LOOKUPP should not check for |
|
2766 |
* NFS4ERR_WRONGSEC. Retrun NFS4_OK instead. |
|
2767 |
*/ |
|
2768 |
if (resp->status == NFS4ERR_WRONGSEC) {
|
|
2769 |
*cs->statusp = resp->status = NFS4_OK; |
|
2770 |
} |
|
2771 |
} |
|
2772 |
||
2773 |
||
2774 |
/*ARGSUSED2*/ |
|
2775 |
static void |
|
2776 |
rfs4_op_openattr(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
2777 |
struct compound_state *cs) |
|
2778 |
{
|
|
2779 |
OPENATTR4args *args = &argop->nfs_argop4_u.opopenattr; |
|
2780 |
OPENATTR4res *resp = &resop->nfs_resop4_u.opopenattr; |
|
2781 |
vnode_t *avp = NULL; |
|
2782 |
int lookup_flags = LOOKUP_XATTR, error; |
|
2783 |
int exp_ro = 0; |
|
2784 |
||
2785 |
if (cs->vp == NULL) {
|
|
2786 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
2787 |
return; |
|
2788 |
} |
|
2789 |
||
2790 |
/* |
|
2791 |
* Make a couple of checks made by copen() |
|
2792 |
* |
|
2793 |
* Check to make sure underlying fs supports xattrs. This |
|
2794 |
* is required because solaris filesystem implementations |
|
2795 |
* (UFS/TMPFS) don't enforce the noxattr mount option |
|
2796 |
* in VOP_LOOKUP(LOOKUP_XATTR). If fs doesn't support this |
|
2797 |
* pathconf cmd or if fs supports cmd but doesn't claim |
|
2798 |
* support for xattr, return NOTSUPP. It would be better |
|
2799 |
* to use VOP_PATHCONF( _PC_XATTR_ENABLED) for this; however, |
|
2800 |
* that cmd is not available to VOP_PATHCONF interface |
|
2801 |
* (it's only implemented inside pathconf syscall)... |
|
2802 |
* |
|
2803 |
* Verify permission to put attributes on files (access |
|
2804 |
* checks from copen). |
|
2805 |
*/ |
|
2806 |
||
2807 |
if ((cs->vp->v_vfsp->vfs_flag & VFS_XATTR) == 0) {
|
|
2808 |
error = ENOTSUP; |
|
2809 |
goto error_out; |
|
2810 |
} |
|
2811 |
||
2812 |
if ((VOP_ACCESS(cs->vp, VREAD, 0, cs->cr) != 0) && |
|
2813 |
(VOP_ACCESS(cs->vp, VWRITE, 0, cs->cr) != 0) && |
|
2814 |
(VOP_ACCESS(cs->vp, VEXEC, 0, cs->cr) != 0)) {
|
|
2815 |
error = EACCES; |
|
2816 |
goto error_out; |
|
2817 |
} |
|
2818 |
||
2819 |
/* |
|
2820 |
* The CREATE_XATTR_DIR VOP flag cannot be specified if |
|
2821 |
* the file system is exported read-only -- regardless of |
|
2822 |
* createdir flag. Otherwise the attrdir would be created |
|
2823 |
* (assuming server fs isn't mounted readonly locally). If |
|
2824 |
* VOP_LOOKUP returns ENOENT in this case, the error will |
|
2825 |
* be translated into EROFS. ENOSYS is mapped to ENOTSUP |
|
2826 |
* because specfs has no VOP_LOOKUP op, so the macro would |
|
2827 |
* return ENOSYS. EINVAL is returned by all (current) |
|
2828 |
* Solaris file system implementations when any of their |
|
2829 |
* restrictions are violated (xattr(dir) can't have xattrdir). |
|
2830 |
* Returning NOTSUPP is more appropriate in this case |
|
2831 |
* because the object will never be able to have an attrdir. |
|
2832 |
*/ |
|
2833 |
if (args->createdir && ! (exp_ro = rdonly4(cs->exi, cs->vp, req))) |
|
2834 |
lookup_flags |= CREATE_XATTR_DIR; |
|
2835 |
||
2836 |
error = VOP_LOOKUP(cs->vp, "", &avp, NULL, lookup_flags, NULL, cs->cr); |
|
2837 |
||
2838 |
if (error) {
|
|
2839 |
if (error == ENOENT && args->createdir && exp_ro) |
|
2840 |
error = EROFS; |
|
2841 |
else if (error == EINVAL || error == ENOSYS) |
|
2842 |
error = ENOTSUP; |
|
2843 |
goto error_out; |
|
2844 |
} |
|
2845 |
||
2846 |
ASSERT(avp->v_flag & V_XATTRDIR); |
|
2847 |
||
2848 |
error = makefh4(&cs->fh, avp, cs->exi); |
|
2849 |
||
2850 |
if (error) {
|
|
2851 |
VN_RELE(avp); |
|
2852 |
goto error_out; |
|
2853 |
} |
|
2854 |
||
2855 |
VN_RELE(cs->vp); |
|
2856 |
cs->vp = avp; |
|
2857 |
||
2858 |
/* |
|
2859 |
* There is no requirement for an attrdir fh flag |
|
2860 |
* because the attrdir has a vnode flag to distinguish |
|
2861 |
* it from regular (non-xattr) directories. The |
|
2862 |
* FH4_ATTRDIR flag is set for future sanity checks. |
|
2863 |
*/ |
|
2864 |
set_fh4_flag(&cs->fh, FH4_ATTRDIR); |
|
2865 |
*cs->statusp = resp->status = NFS4_OK; |
|
2866 |
return; |
|
2867 |
||
2868 |
error_out: |
|
2869 |
||
2870 |
*cs->statusp = resp->status = puterrno4(error); |
|
2871 |
} |
|
2872 |
||
2873 |
static int |
|
2874 |
do_io(int direction, vnode_t *vp, struct uio *uio, int ioflag, cred_t *cred) |
|
2875 |
{
|
|
2876 |
int error; |
|
2877 |
int i; |
|
2878 |
clock_t delaytime; |
|
2879 |
caller_context_t ct; |
|
2880 |
||
2881 |
delaytime = MSEC_TO_TICK_ROUNDUP(rfs4_lock_delay); |
|
2882 |
||
2883 |
/* |
|
2884 |
* Don't block on mandatory locks. If this routine returns |
|
2885 |
* EAGAIN, the caller should return NFS4ERR_LOCKED. |
|
2886 |
*/ |
|
2887 |
uio->uio_fmode = FNONBLOCK; |
|
2888 |
||
2889 |
ct.cc_sysid = 0; |
|
2890 |
ct.cc_pid = 0; |
|
2891 |
ct.cc_caller_id = nfs4_srv_caller_id; |
|
2892 |
||
2893 |
for (i = 0; i < rfs4_maxlock_tries; i++) {
|
|
2894 |
||
2895 |
||
2896 |
if (direction == FREAD) {
|
|
2897 |
(void) VOP_RWLOCK(vp, V_WRITELOCK_FALSE, &ct); |
|
2898 |
error = VOP_READ(vp, uio, ioflag, cred, &ct); |
|
2899 |
VOP_RWUNLOCK(vp, V_WRITELOCK_FALSE, &ct); |
|
2900 |
} else {
|
|
2901 |
(void) VOP_RWLOCK(vp, V_WRITELOCK_TRUE, &ct); |
|
2902 |
error = VOP_WRITE(vp, uio, ioflag, cred, &ct); |
|
2903 |
VOP_RWUNLOCK(vp, V_WRITELOCK_TRUE, &ct); |
|
2904 |
} |
|
2905 |
||
2906 |
if (error != EAGAIN) |
|
2907 |
break; |
|
2908 |
||
2909 |
if (i < rfs4_maxlock_tries - 1) {
|
|
2910 |
delay(delaytime); |
|
2911 |
delaytime *= 2; |
|
2912 |
} |
|
2913 |
} |
|
2914 |
||
2915 |
return (error); |
|
2916 |
} |
|
2917 |
||
2918 |
/* ARGSUSED */ |
|
2919 |
static void |
|
2920 |
rfs4_op_read(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
2921 |
struct compound_state *cs) |
|
2922 |
{
|
|
2923 |
READ4args *args = &argop->nfs_argop4_u.opread; |
|
2924 |
READ4res *resp = &resop->nfs_resop4_u.opread; |
|
2925 |
int error; |
|
2926 |
int verror; |
|
2927 |
vnode_t *vp; |
|
2928 |
struct vattr va; |
|
2929 |
struct iovec iov; |
|
2930 |
struct uio uio; |
|
2931 |
u_offset_t offset; |
|
2932 |
bool_t *deleg = &cs->deleg; |
|
2933 |
nfsstat4 stat; |
|
2934 |
int in_crit = 0; |
|
2935 |
mblk_t *mp; |
|
2936 |
int alloc_err = 0; |
|
2937 |
||
2938 |
vp = cs->vp; |
|
2939 |
if (vp == NULL) {
|
|
2940 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
2941 |
return; |
|
2942 |
} |
|
2943 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
2944 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
2945 |
return; |
|
2946 |
} |
|
2947 |
||
2948 |
/* |
|
2949 |
* Enter the critical region before calling VOP_RWLOCK |
|
2950 |
* to avoid a deadlock with write requests. |
|
2951 |
*/ |
|
2952 |
if (nbl_need_check(vp)) {
|
|
2953 |
nbl_start_crit(vp, RW_READER); |
|
2954 |
in_crit = 1; |
|
2955 |
if (nbl_conflict(vp, NBL_READ, args->offset, args->count, 0)) {
|
|
2956 |
*cs->statusp = resp->status = NFS4ERR_LOCKED; |
|
2957 |
goto out; |
|
2958 |
} |
|
2959 |
} |
|
2960 |
||
2961 |
if ((stat = rfs4_check_stateid(FREAD, vp, &args->stateid, FALSE, |
|
2962 |
deleg, TRUE)) != NFS4_OK) {
|
|
2963 |
*cs->statusp = resp->status = stat; |
|
2964 |
goto out; |
|
2965 |
} |
|
2966 |
||
2967 |
va.va_mask = AT_MODE|AT_SIZE|AT_UID; |
|
2968 |
verror = VOP_GETATTR(vp, &va, 0, cs->cr); |
|
2969 |
||
2970 |
/* |
|
2971 |
* If we can't get the attributes, then we can't do the |
|
2972 |
* right access checking. So, we'll fail the request. |
|
2973 |
*/ |
|
2974 |
if (verror) {
|
|
2975 |
*cs->statusp = resp->status = puterrno4(verror); |
|
2976 |
goto out; |
|
2977 |
} |
|
2978 |
||
2979 |
if (vp->v_type != VREG) {
|
|
2980 |
*cs->statusp = resp->status = |
|
2981 |
((vp->v_type == VDIR) ? NFS4ERR_ISDIR : NFS4ERR_INVAL); |
|
2982 |
goto out; |
|
2983 |
} |
|
2984 |
||
2985 |
if (crgetuid(cs->cr) != va.va_uid && |
|
2986 |
(error = VOP_ACCESS(vp, VREAD, 0, cs->cr)) && |
|
2987 |
(error = VOP_ACCESS(vp, VEXEC, 0, cs->cr))) {
|
|
2988 |
*cs->statusp = resp->status = puterrno4(error); |
|
2989 |
goto out; |
|
2990 |
} |
|
2991 |
||
2992 |
if (MANDLOCK(vp, va.va_mode)) { /* XXX - V4 supports mand locking */
|
|
2993 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
2994 |
goto out; |
|
2995 |
} |
|
2996 |
||
2997 |
offset = args->offset; |
|
2998 |
if (offset >= va.va_size) {
|
|
2999 |
*cs->statusp = resp->status = NFS4_OK; |
|
3000 |
resp->eof = TRUE; |
|
3001 |
resp->data_len = 0; |
|
3002 |
resp->data_val = NULL; |
|
3003 |
resp->mblk = NULL; |
|
3004 |
*cs->statusp = resp->status = NFS4_OK; |
|
3005 |
goto out; |
|
3006 |
} |
|
3007 |
||
3008 |
if (args->count == 0) {
|
|
3009 |
*cs->statusp = resp->status = NFS4_OK; |
|
3010 |
resp->eof = FALSE; |
|
3011 |
resp->data_len = 0; |
|
3012 |
resp->data_val = NULL; |
|
3013 |
resp->mblk = NULL; |
|
3014 |
goto out; |
|
3015 |
} |
|
3016 |
||
3017 |
/* |
|
3018 |
* Do not allocate memory more than maximum allowed |
|
3019 |
* transfer size |
|
3020 |
*/ |
|
3021 |
if (args->count > rfs4_tsize(req)) |
|
3022 |
args->count = rfs4_tsize(req); |
|
3023 |
||
3024 |
/* |
|
3025 |
* mp will contain the data to be sent out in the read reply. |
|
3026 |
* It will be freed after the reply has been sent. |
|
3027 |
* Let's roundup the data to a BYTES_PER_XDR_UNIT multiple, |
|
3028 |
* so that the call to xdrmblk_putmblk() never fails. |
|
3029 |
* If the first alloc of the requested size fails, then |
|
3030 |
* decrease the size to something more reasonable and wait |
|
3031 |
* for the allocation to occur. |
|
3032 |
*/ |
|
3033 |
mp = allocb(RNDUP(args->count), BPRI_MED); |
|
3034 |
if (mp == NULL) {
|
|
3035 |
if (args->count > MAXBSIZE) |
|
3036 |
args->count = MAXBSIZE; |
|
3037 |
mp = allocb_wait(RNDUP(args->count), BPRI_MED, |
|
3038 |
STR_NOSIG, &alloc_err); |
|
3039 |
} |
|
3040 |
ASSERT(mp != NULL); |
|
3041 |
ASSERT(alloc_err == 0); |
|
3042 |
||
3043 |
iov.iov_base = (caddr_t)mp->b_datap->db_base; |
|
3044 |
iov.iov_len = args->count; |
|
3045 |
uio.uio_iov = &iov; |
|
3046 |
uio.uio_iovcnt = 1; |
|
3047 |
uio.uio_segflg = UIO_SYSSPACE; |
|
3048 |
uio.uio_extflg = UIO_COPY_CACHED; |
|
3049 |
uio.uio_loffset = args->offset; |
|
3050 |
uio.uio_resid = args->count; |
|
3051 |
||
3052 |
error = do_io(FREAD, vp, &uio, 0, cs->cr); |
|
3053 |
||
3054 |
va.va_mask = AT_SIZE; |
|
3055 |
verror = VOP_GETATTR(vp, &va, 0, cs->cr); |
|
3056 |
||
3057 |
if (error) {
|
|
3058 |
freeb(mp); |
|
3059 |
*cs->statusp = resp->status = puterrno4(error); |
|
3060 |
goto out; |
|
3061 |
} |
|
3062 |
||
3063 |
*cs->statusp = resp->status = NFS4_OK; |
|
3064 |
||
3065 |
ASSERT(uio.uio_resid >= 0); |
|
3066 |
resp->data_len = args->count - uio.uio_resid; |
|
3067 |
resp->data_val = (char *)mp->b_datap->db_base; |
|
3068 |
resp->mblk = mp; |
|
3069 |
||
3070 |
if (!verror && offset + resp->data_len == va.va_size) |
|
3071 |
resp->eof = TRUE; |
|
3072 |
else |
|
3073 |
resp->eof = FALSE; |
|
3074 |
||
3075 |
out: |
|
3076 |
if (in_crit) |
|
3077 |
nbl_end_crit(vp); |
|
3078 |
} |
|
3079 |
||
3080 |
static void |
|
3081 |
rfs4_op_read_free(nfs_resop4 *resop) |
|
3082 |
{
|
|
3083 |
READ4res *resp = &resop->nfs_resop4_u.opread; |
|
3084 |
||
3085 |
if (resp->status == NFS4_OK && resp->mblk != NULL) {
|
|
3086 |
freeb(resp->mblk); |
|
3087 |
resp->mblk = NULL; |
|
3088 |
resp->data_val = NULL; |
|
3089 |
resp->data_len = 0; |
|
3090 |
} |
|
3091 |
} |
|
3092 |
||
3093 |
static void |
|
3094 |
rfs4_op_readdir_free(nfs_resop4 *resop) |
|
3095 |
{
|
|
3096 |
READDIR4res *resp = &resop->nfs_resop4_u.opreaddir; |
|
3097 |
||
3098 |
if (resp->status == NFS4_OK && resp->mblk != NULL) {
|
|
3099 |
freeb(resp->mblk); |
|
3100 |
resp->mblk = NULL; |
|
3101 |
resp->data_len = 0; |
|
3102 |
} |
|
3103 |
} |
|
3104 |
||
3105 |
||
3106 |
/* ARGSUSED */ |
|
3107 |
static void |
|
3108 |
rfs4_op_putpubfh(nfs_argop4 *args, nfs_resop4 *resop, struct svc_req *req, |
|
3109 |
struct compound_state *cs) |
|
3110 |
{
|
|
3111 |
PUTPUBFH4res *resp = &resop->nfs_resop4_u.opputpubfh; |
|
3112 |
int error; |
|
3113 |
vnode_t *vp; |
|
3114 |
struct exportinfo *exi, *sav_exi; |
|
3115 |
nfs_fh4_fmt_t *fh_fmtp; |
|
3116 |
||
3117 |
if (cs->vp) {
|
|
3118 |
VN_RELE(cs->vp); |
|
3119 |
cs->vp = NULL; |
|
3120 |
} |
|
3121 |
||
3122 |
if (cs->cr) |
|
3123 |
crfree(cs->cr); |
|
3124 |
||
3125 |
cs->cr = crdup(cs->basecr); |
|
3126 |
||
3127 |
vp = exi_public->exi_vp; |
|
3128 |
if (vp == NULL) {
|
|
3129 |
*cs->statusp = resp->status = NFS4ERR_SERVERFAULT; |
|
3130 |
return; |
|
3131 |
} |
|
3132 |
||
3133 |
error = makefh4(&cs->fh, vp, exi_public); |
|
3134 |
if (error != 0) {
|
|
3135 |
*cs->statusp = resp->status = puterrno4(error); |
|
3136 |
return; |
|
3137 |
} |
|
3138 |
sav_exi = cs->exi; |
|
3139 |
if (exi_public == exi_root) {
|
|
3140 |
/* |
|
3141 |
* No filesystem is actually shared public, so we default |
|
3142 |
* to exi_root. In this case, we must check whether root |
|
3143 |
* is exported. |
|
3144 |
*/ |
|
3145 |
fh_fmtp = (nfs_fh4_fmt_t *)cs->fh.nfs_fh4_val; |
|
3146 |
||
3147 |
/* |
|
3148 |
* if root filesystem is exported, the exportinfo struct that we |
|
3149 |
* should use is what checkexport4 returns, because root_exi is |
|
3150 |
* actually a mostly empty struct. |
|
3151 |
*/ |
|
3152 |
exi = checkexport4(&fh_fmtp->fh4_fsid, |
|
3153 |
(fid_t *)&fh_fmtp->fh4_xlen, NULL); |
|
3154 |
cs->exi = ((exi != NULL) ? exi : exi_public); |
|
3155 |
} else {
|
|
3156 |
/* |
|
3157 |
* it's a properly shared filesystem |
|
3158 |
*/ |
|
3159 |
cs->exi = exi_public; |
|
3160 |
} |
|
3161 |
||
3162 |
VN_HOLD(vp); |
|
3163 |
cs->vp = vp; |
|
3164 |
||
3165 |
if ((resp->status = call_checkauth4(cs, req)) != NFS4_OK) {
|
|
3166 |
VN_RELE(cs->vp); |
|
3167 |
cs->vp = NULL; |
|
3168 |
cs->exi = sav_exi; |
|
3169 |
return; |
|
3170 |
} |
|
3171 |
||
3172 |
*cs->statusp = resp->status = NFS4_OK; |
|
3173 |
} |
|
3174 |
||
3175 |
/* |
|
3176 |
* XXX - issue with put*fh operations. Suppose /export/home is exported. |
|
3177 |
* Suppose an NFS client goes to mount /export/home/joe. If /export, home, |
|
3178 |
* or joe have restrictive search permissions, then we shouldn't let |
|
3179 |
* the client get a file handle. This is easy to enforce. However, we |
|
3180 |
* don't know what security flavor should be used until we resolve the |
|
3181 |
* path name. Another complication is uid mapping. If root is |
|
3182 |
* the user, then it will be mapped to the anonymous user by default, |
|
3183 |
* but we won't know that till we've resolved the path name. And we won't |
|
3184 |
* know what the anonymous user is. |
|
3185 |
* Luckily, SECINFO is specified to take a full filename. |
|
3186 |
* So what we will have to in rfs4_op_lookup is check that flavor of |
|
3187 |
* the target object matches that of the request, and if root was the |
|
3188 |
* caller, check for the root= and anon= options, and if necessary, |
|
3189 |
* repeat the lookup using the right cred_t. But that's not done yet. |
|
3190 |
*/ |
|
3191 |
/* ARGSUSED */ |
|
3192 |
static void |
|
3193 |
rfs4_op_putfh(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
3194 |
struct compound_state *cs) |
|
3195 |
{
|
|
3196 |
PUTFH4args *args = &argop->nfs_argop4_u.opputfh; |
|
3197 |
PUTFH4res *resp = &resop->nfs_resop4_u.opputfh; |
|
3198 |
nfs_fh4_fmt_t *fh_fmtp; |
|
3199 |
||
3200 |
if (cs->vp) {
|
|
3201 |
VN_RELE(cs->vp); |
|
3202 |
cs->vp = NULL; |
|
3203 |
} |
|
3204 |
||
3205 |
if (cs->cr) {
|
|
3206 |
crfree(cs->cr); |
|
3207 |
cs->cr = NULL; |
|
3208 |
} |
|
3209 |
||
3210 |
||
3211 |
if (args->object.nfs_fh4_len < NFS_FH4_LEN) {
|
|
3212 |
*cs->statusp = resp->status = NFS4ERR_BADHANDLE; |
|
3213 |
return; |
|
3214 |
} |
|
3215 |
||
3216 |
fh_fmtp = (nfs_fh4_fmt_t *)args->object.nfs_fh4_val; |
|
3217 |
cs->exi = checkexport4(&fh_fmtp->fh4_fsid, (fid_t *)&fh_fmtp->fh4_xlen, |
|
3218 |
NULL); |
|
3219 |
||
3220 |
if (cs->exi == NULL) {
|
|
3221 |
*cs->statusp = resp->status = NFS4ERR_STALE; |
|
3222 |
return; |
|
3223 |
} |
|
3224 |
||
3225 |
cs->cr = crdup(cs->basecr); |
|
3226 |
||
3227 |
ASSERT(cs->cr != NULL); |
|
3228 |
||
3229 |
if (! (cs->vp = nfs4_fhtovp(&args->object, cs->exi, &resp->status))) {
|
|
3230 |
*cs->statusp = resp->status; |
|
3231 |
return; |
|
3232 |
} |
|
3233 |
||
3234 |
if ((resp->status = call_checkauth4(cs, req)) != NFS4_OK) {
|
|
3235 |
VN_RELE(cs->vp); |
|
3236 |
cs->vp = NULL; |
|
3237 |
return; |
|
3238 |
} |
|
3239 |
||
3240 |
nfs_fh4_copy(&args->object, &cs->fh); |
|
3241 |
*cs->statusp = resp->status = NFS4_OK; |
|
3242 |
cs->deleg = FALSE; |
|
3243 |
} |
|
3244 |
||
3245 |
/* ARGSUSED */ |
|
3246 |
static void |
|
3247 |
rfs4_op_putrootfh(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
3248 |
struct compound_state *cs) |
|
3249 |
||
3250 |
{
|
|
3251 |
PUTROOTFH4res *resp = &resop->nfs_resop4_u.opputrootfh; |
|
3252 |
int error; |
|
3253 |
fid_t fid; |
|
3254 |
struct exportinfo *exi, *sav_exi; |
|
3255 |
||
3256 |
if (cs->vp) {
|
|
3257 |
VN_RELE(cs->vp); |
|
3258 |
cs->vp = NULL; |
|
3259 |
} |
|
3260 |
||
3261 |
if (cs->cr) |
|
3262 |
crfree(cs->cr); |
|
3263 |
||
3264 |
cs->cr = crdup(cs->basecr); |
|
3265 |
||
3266 |
/* |
|
3267 |
* Using rootdir, the system root vnode, |
|
3268 |
* get its fid. |
|
3269 |
*/ |
|
3270 |
bzero(&fid, sizeof (fid)); |
|
3271 |
fid.fid_len = MAXFIDSZ; |
|
3272 |
error = vop_fid_pseudo(rootdir, &fid); |
|
3273 |
if (error != 0) {
|
|
3274 |
*cs->statusp = resp->status = puterrno4(error); |
|
3275 |
return; |
|
3276 |
} |
|
3277 |
||
3278 |
/* |
|
3279 |
* Then use the root fsid & fid it to find out if it's exported |
|
3280 |
* |
|
3281 |
* If the server root isn't exported directly, then |
|
3282 |
* it should at least be a pseudo export based on |
|
3283 |
* one or more exports further down in the server's |
|
3284 |
* file tree. |
|
3285 |
*/ |
|
3286 |
exi = checkexport4(&rootdir->v_vfsp->vfs_fsid, &fid, NULL); |
|
3287 |
if (exi == NULL || exi->exi_export.ex_flags & EX_PUBLIC) {
|
|
3288 |
NFS4_DEBUG(rfs4_debug, |
|
3289 |
(CE_WARN, "rfs4_op_putrootfh: export check failure")); |
|
3290 |
*cs->statusp = resp->status = NFS4ERR_SERVERFAULT; |
|
3291 |
return; |
|
3292 |
} |
|
3293 |
||
3294 |
/* |
|
3295 |
* Now make a filehandle based on the root |
|
3296 |
* export and root vnode. |
|
3297 |
*/ |
|
3298 |
error = makefh4(&cs->fh, rootdir, exi); |
|
3299 |
if (error != 0) {
|
|
3300 |
*cs->statusp = resp->status = puterrno4(error); |
|
3301 |
return; |
|
3302 |
} |
|
3303 |
||
3304 |
sav_exi = cs->exi; |
|
3305 |
cs->exi = exi; |
|
3306 |
||
3307 |
VN_HOLD(rootdir); |
|
3308 |
cs->vp = rootdir; |
|
3309 |
||
3310 |
if ((resp->status = call_checkauth4(cs, req)) != NFS4_OK) {
|
|
3311 |
VN_RELE(rootdir); |
|
3312 |
cs->vp = NULL; |
|
3313 |
cs->exi = sav_exi; |
|
3314 |
return; |
|
3315 |
} |
|
3316 |
||
3317 |
*cs->statusp = resp->status = NFS4_OK; |
|
3318 |
cs->deleg = FALSE; |
|
3319 |
} |
|
3320 |
||
3321 |
/* |
|
3322 |
* A directory entry is a valid nfsv4 entry if |
|
3323 |
* - it has a non-zero ino |
|
3324 |
* - it is not a dot or dotdot name |
|
3325 |
* - it is visible in a pseudo export or in a real export that can |
|
3326 |
* only have a limited view. |
|
3327 |
*/ |
|
3328 |
static bool_t |
|
3329 |
valid_nfs4_entry(struct exportinfo *exi, struct dirent64 *dp, |
|
3330 |
int *expseudo, int check_visible) |
|
3331 |
{
|
|
3332 |
if (dp->d_ino == 0 || NFS_IS_DOTNAME(dp->d_name)) {
|
|
3333 |
*expseudo = 0; |
|
3334 |
return (FALSE); |
|
3335 |
} |
|
3336 |
||
3337 |
if (! check_visible) {
|
|
3338 |
*expseudo = 0; |
|
3339 |
return (TRUE); |
|
3340 |
} |
|
3341 |
||
3342 |
return (nfs_visible_inode(exi, dp->d_ino, expseudo)); |
|
3343 |
} |
|
3344 |
||
3345 |
/* |
|
3346 |
* set_rdattr_params sets up the variables used to manage what information |
|
3347 |
* to get for each directory entry. |
|
3348 |
*/ |
|
3349 |
static nfsstat4 |
|
3350 |
set_rdattr_params(struct nfs4_svgetit_arg *sargp, |
|
3351 |
bitmap4 attrs, bool_t *need_to_lookup) |
|
3352 |
{
|
|
3353 |
uint_t va_mask; |
|
3354 |
nfsstat4 status; |
|
3355 |
bitmap4 objbits; |
|
3356 |
||
3357 |
status = bitmap4_to_attrmask(attrs, sargp); |
|
3358 |
if (status != NFS4_OK) {
|
|
3359 |
/* |
|
3360 |
* could not even figure attr mask |
|
3361 |
*/ |
|
3362 |
return (status); |
|
3363 |
} |
|
3364 |
va_mask = sargp->vap->va_mask; |
|
3365 |
||
3366 |
/* |
|
3367 |
* dirent's d_ino is always correct value for mounted_on_fileid. |
|
3368 |
* mntdfid_set is set once here, but mounted_on_fileid is |
|
3369 |
* set in main dirent processing loop for each dirent. |
|
3370 |
* The mntdfid_set is a simple optimization that lets the |
|
3371 |
* server attr code avoid work when caller is readdir. |
|
3372 |
*/ |
|
3373 |
sargp->mntdfid_set = TRUE; |
|
3374 |
||
3375 |
/* |
|
3376 |
* Lookup entry only if client asked for any of the following: |
|
3377 |
* a) vattr attrs |
|
3378 |
* b) vfs attrs |
|
3379 |
* c) attrs w/per-object scope requested (change, filehandle, etc) |
|
3380 |
* other than mounted_on_fileid (which we can take from dirent) |
|
3381 |
*/ |
|
3382 |
objbits = attrs ? attrs & NFS4_VP_ATTR_MASK : 0; |
|
3383 |
||
3384 |
if (va_mask || sargp->sbp || (objbits & ~FATTR4_MOUNTED_ON_FILEID_MASK)) |
|
3385 |
*need_to_lookup = TRUE; |
|
3386 |
else |
|
3387 |
*need_to_lookup = FALSE; |
|
3388 |
||
3389 |
if (sargp->sbp == NULL) |
|
3390 |
return (NFS4_OK); |
|
3391 |
||
3392 |
/* |
|
3393 |
* If filesystem attrs are requested, get them now from the |
|
3394 |
* directory vp, as most entries will have same filesystem. The only |
|
3395 |
* exception are mounted over entries but we handle |
|
3396 |
* those as we go (XXX mounted over detection not yet implemented). |
|
3397 |
*/ |
|
3398 |
sargp->vap->va_mask = 0; /* to avoid VOP_GETATTR */ |
|
3399 |
status = bitmap4_get_sysattrs(sargp); |
|
3400 |
sargp->vap->va_mask = va_mask; |
|
3401 |
||
3402 |
if ((status != NFS4_OK) && sargp->rdattr_error_req) {
|
|
3403 |
/* |
|
3404 |
* Failed to get filesystem attributes. |
|
3405 |
* Return a rdattr_error for each entry, but don't fail. |
|
3406 |
* However, don't get any obj-dependent attrs. |
|
3407 |
*/ |
|
3408 |
sargp->rdattr_error = status; /* for rdattr_error */ |
|
3409 |
*need_to_lookup = FALSE; |
|
3410 |
/* |
|
3411 |
* At least get fileid for regular readdir output |
|
3412 |
*/ |
|
3413 |
sargp->vap->va_mask &= AT_NODEID; |
|
3414 |
status = NFS4_OK; |
|
3415 |
} |
|
3416 |
||
3417 |
return (status); |
|
3418 |
} |
|
3419 |
||
3420 |
/* |
|
3421 |
* readlink: args: CURRENT_FH. |
|
3422 |
* res: status. If success - CURRENT_FH unchanged, return linktext. |
|
3423 |
*/ |
|
3424 |
||
3425 |
/* ARGSUSED */ |
|
3426 |
static void |
|
3427 |
rfs4_op_readlink(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
3428 |
struct compound_state *cs) |
|
3429 |
{
|
|
3430 |
READLINK4res *resp = &resop->nfs_resop4_u.opreadlink; |
|
3431 |
int error; |
|
3432 |
vnode_t *vp; |
|
3433 |
struct iovec iov; |
|
3434 |
struct vattr va; |
|
3435 |
struct uio uio; |
|
3436 |
char *data; |
|
3437 |
||
3438 |
/* CURRENT_FH: directory */ |
|
3439 |
vp = cs->vp; |
|
3440 |
if (vp == NULL) {
|
|
3441 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
3442 |
return; |
|
3443 |
} |
|
3444 |
||
3445 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
3446 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
3447 |
return; |
|
3448 |
} |
|
3449 |
||
3450 |
if (vp->v_type == VDIR) {
|
|
3451 |
*cs->statusp = resp->status = NFS4ERR_ISDIR; |
|
3452 |
return; |
|
3453 |
} |
|
3454 |
||
3455 |
if (vp->v_type != VLNK) {
|
|
3456 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
3457 |
return; |
|
3458 |
} |
|
3459 |
||
3460 |
va.va_mask = AT_MODE; |
|
3461 |
error = VOP_GETATTR(vp, &va, 0, cs->cr); |
|
3462 |
if (error) {
|
|
3463 |
*cs->statusp = resp->status = puterrno4(error); |
|
3464 |
return; |
|
3465 |
} |
|
3466 |
||
3467 |
if (MANDLOCK(vp, va.va_mode)) {
|
|
3468 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
3469 |
return; |
|
3470 |
} |
|
3471 |
||
3472 |
data = kmem_alloc(MAXPATHLEN + 1, KM_SLEEP); |
|
3473 |
||
3474 |
iov.iov_base = data; |
|
3475 |
iov.iov_len = MAXPATHLEN; |
|
3476 |
uio.uio_iov = &iov; |
|
3477 |
uio.uio_iovcnt = 1; |
|
3478 |
uio.uio_segflg = UIO_SYSSPACE; |
|
3479 |
uio.uio_extflg = UIO_COPY_CACHED; |
|
3480 |
uio.uio_loffset = 0; |
|
3481 |
uio.uio_resid = MAXPATHLEN; |
|
3482 |
||
3483 |
error = VOP_READLINK(vp, &uio, cs->cr); |
|
3484 |
||
3485 |
if (error) {
|
|
3486 |
kmem_free((caddr_t)data, (uint_t)MAXPATHLEN + 1); |
|
3487 |
*cs->statusp = resp->status = puterrno4(error); |
|
3488 |
return; |
|
3489 |
} |
|
3490 |
||
3491 |
*(data + MAXPATHLEN - uio.uio_resid) = '\0'; |
|
3492 |
||
3493 |
/* |
|
3494 |
* treat link name as data |
|
3495 |
*/ |
|
3496 |
(void) str_to_utf8(data, &resp->link); |
|
3497 |
||
3498 |
kmem_free((caddr_t)data, (uint_t)MAXPATHLEN + 1); |
|
3499 |
*cs->statusp = resp->status = NFS4_OK; |
|
3500 |
} |
|
3501 |
||
3502 |
static void |
|
3503 |
rfs4_op_readlink_free(nfs_resop4 *resop) |
|
3504 |
{
|
|
3505 |
READLINK4res *resp = &resop->nfs_resop4_u.opreadlink; |
|
3506 |
utf8string *symlink = &resp->link; |
|
3507 |
||
3508 |
if (symlink->utf8string_val) {
|
|
3509 |
UTF8STRING_FREE(*symlink) |
|
3510 |
} |
|
3511 |
} |
|
3512 |
||
3513 |
/* |
|
3514 |
* release_lockowner: |
|
3515 |
* Release any state associated with the supplied |
|
3516 |
* lockowner. Note if any lo_state is holding locks we will not |
|
3517 |
* rele that lo_state and thus the lockowner will not be destroyed. |
|
3518 |
* A client using lock after the lock owner stateid has been released |
|
3519 |
* will suffer the consequence of NFS4ERR_BAD_STATEID and would have |
|
3520 |
* to reissue the lock with new_lock_owner set to TRUE. |
|
3521 |
* args: lock_owner |
|
3522 |
* res: status |
|
3523 |
*/ |
|
3524 |
/* ARGSUSED */ |
|
3525 |
static void |
|
3526 |
rfs4_op_release_lockowner(nfs_argop4 *argop, nfs_resop4 *resop, |
|
3527 |
struct svc_req *req, struct compound_state *cs) |
|
3528 |
{
|
|
3529 |
RELEASE_LOCKOWNER4args *ap = &argop->nfs_argop4_u.oprelease_lockowner; |
|
3530 |
RELEASE_LOCKOWNER4res *resp = &resop->nfs_resop4_u.oprelease_lockowner; |
|
3531 |
rfs4_lockowner_t *lo; |
|
3532 |
rfs4_openowner_t *oop; |
|
3533 |
rfs4_state_t *sp; |
|
3534 |
rfs4_lo_state_t *lsp; |
|
3535 |
rfs4_client_t *cp; |
|
3536 |
bool_t create = FALSE; |
|
3537 |
locklist_t *llist; |
|
3538 |
sysid_t sysid; |
|
3539 |
||
3540 |
/* Make sure there is a clientid around for this request */ |
|
3541 |
cp = rfs4_findclient_by_id(ap->lock_owner.clientid, FALSE); |
|
3542 |
||
3543 |
if (cp == NULL) {
|
|
3544 |
*cs->statusp = resp->status = |
|
3545 |
rfs4_check_clientid(&ap->lock_owner.clientid, 0); |
|
3546 |
return; |
|
3547 |
} |
|
3548 |
rfs4_client_rele(cp); |
|
3549 |
||
3550 |
lo = rfs4_findlockowner(&ap->lock_owner, &create); |
|
3551 |
if (lo == NULL) {
|
|
3552 |
*cs->statusp = resp->status = NFS4_OK; |
|
3553 |
return; |
|
3554 |
} |
|
3555 |
ASSERT(lo->client != NULL); |
|
3556 |
||
3557 |
/* |
|
3558 |
* Check for EXPIRED client. If so will reap state with in a lease |
|
3559 |
* period or on next set_clientid_confirm step |
|
3560 |
*/ |
|
3561 |
if (rfs4_lease_expired(lo->client)) {
|
|
3562 |
rfs4_lockowner_rele(lo); |
|
3563 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
3564 |
return; |
|
3565 |
} |
|
3566 |
||
3567 |
/* |
|
3568 |
* If no sysid has been assigned, then no locks exist; just return. |
|
3569 |
*/ |
|
3570 |
rfs4_dbe_lock(lo->client->dbe); |
|
3571 |
if (lo->client->sysidt == LM_NOSYSID) {
|
|
3572 |
rfs4_lockowner_rele(lo); |
|
3573 |
rfs4_dbe_unlock(lo->client->dbe); |
|
3574 |
return; |
|
3575 |
} |
|
3576 |
||
3577 |
sysid = lo->client->sysidt; |
|
3578 |
rfs4_dbe_unlock(lo->client->dbe); |
|
3579 |
||
3580 |
/* |
|
3581 |
* Mark the lockowner invalid. |
|
3582 |
*/ |
|
3583 |
rfs4_dbe_hide(lo->dbe); |
|
3584 |
||
3585 |
/* |
|
3586 |
* sysid-pid pair should now not be used since the lockowner is |
|
3587 |
* invalid. If the client were to instantiate the lockowner again |
|
3588 |
* it would be assigned a new pid. Thus we can get the list of |
|
3589 |
* current locks. |
|
3590 |
*/ |
|
3591 |
||
3592 |
llist = flk_get_active_locks(sysid, lo->pid); |
|
3593 |
/* If we are still holding locks fail */ |
|
3594 |
if (llist != NULL) {
|
|
3595 |
||
3596 |
*cs->statusp = resp->status = NFS4ERR_LOCKS_HELD; |
|
3597 |
||
3598 |
flk_free_locklist(llist); |
|
3599 |
/* |
|
3600 |
* We need to unhide the lockowner so the client can |
|
3601 |
* try it again. The bad thing here is if the client |
|
3602 |
* has a logic error that took it here in the first place |
|
3603 |
* he probably has lost accounting of the locks that it |
|
3604 |
* is holding. So we may have dangling state until the |
|
3605 |
* open owner state is reaped via close. One scenario |
|
3606 |
* that could possibly occur is that the client has |
|
3607 |
* sent the unlock request(s) in separate threads |
|
3608 |
* and has not waited for the replies before sending the |
|
3609 |
* RELEASE_LOCKOWNER request. Presumably, it would expect |
|
3610 |
* and deal appropriately with NFS4ERR_LOCKS_HELD, by |
|
3611 |
* reissuing the request. |
|
3612 |
*/ |
|
3613 |
rfs4_dbe_unhide(lo->dbe); |
|
3614 |
rfs4_lockowner_rele(lo); |
|
3615 |
return; |
|
3616 |
} |
|
3617 |
||
3618 |
/* |
|
3619 |
* For the corresponding client we need to check each open |
|
3620 |
* owner for any opens that have lockowner state associated |
|
3621 |
* with this lockowner. |
|
3622 |
*/ |
|
3623 |
||
3624 |
rfs4_dbe_lock(lo->client->dbe); |
|
3625 |
for (oop = lo->client->openownerlist.next->oop; oop != NULL; |
|
3626 |
oop = oop->openownerlist.next->oop) {
|
|
3627 |
||
3628 |
rfs4_dbe_lock(oop->dbe); |
|
3629 |
for (sp = oop->ownerstateids.next->sp; sp != NULL; |
|
3630 |
sp = sp->ownerstateids.next->sp) {
|
|
3631 |
||
3632 |
rfs4_dbe_lock(sp->dbe); |
|
3633 |
for (lsp = sp->lockownerlist.next->lsp; |
|
3634 |
lsp != NULL; lsp = lsp->lockownerlist.next->lsp) {
|
|
3635 |
if (lsp->locker == lo) {
|
|
3636 |
rfs4_dbe_lock(lsp->dbe); |
|
3637 |
rfs4_dbe_invalidate(lsp->dbe); |
|
3638 |
rfs4_dbe_unlock(lsp->dbe); |
|
3639 |
} |
|
3640 |
} |
|
3641 |
rfs4_dbe_unlock(sp->dbe); |
|
3642 |
} |
|
3643 |
rfs4_dbe_unlock(oop->dbe); |
|
3644 |
} |
|
3645 |
rfs4_dbe_unlock(lo->client->dbe); |
|
3646 |
||
3647 |
rfs4_lockowner_rele(lo); |
|
3648 |
||
3649 |
*cs->statusp = resp->status = NFS4_OK; |
|
3650 |
} |
|
3651 |
||
3652 |
/* |
|
3653 |
* short utility function to lookup a file and recall the delegation |
|
3654 |
*/ |
|
3655 |
static rfs4_file_t * |
|
3656 |
rfs4_lookup_and_findfile(vnode_t *dvp, char *nm, vnode_t **vpp, |
|
3657 |
int *lkup_error, cred_t *cr) |
|
3658 |
{
|
|
3659 |
vnode_t *vp; |
|
3660 |
rfs4_file_t *fp = NULL; |
|
3661 |
bool_t fcreate = FALSE; |
|
3662 |
int error; |
|
3663 |
||
3664 |
if (vpp) |
|
3665 |
*vpp = NULL; |
|
3666 |
||
3667 |
if ((error = VOP_LOOKUP(dvp, nm, &vp, NULL, 0, NULL, cr)) == 0) {
|
|
3668 |
if (vp->v_type == VREG) |
|
3669 |
fp = rfs4_findfile(vp, NULL, &fcreate); |
|
3670 |
if (vpp) |
|
3671 |
*vpp = vp; |
|
3672 |
else |
|
3673 |
VN_RELE(vp); |
|
3674 |
} |
|
3675 |
||
3676 |
if (lkup_error) |
|
3677 |
*lkup_error = error; |
|
3678 |
||
3679 |
return (fp); |
|
3680 |
} |
|
3681 |
||
3682 |
/* |
|
3683 |
* remove: args: CURRENT_FH: directory; name. |
|
3684 |
* res: status. If success - CURRENT_FH unchanged, return change_info |
|
3685 |
* for directory. |
|
3686 |
*/ |
|
3687 |
/* ARGSUSED */ |
|
3688 |
static void |
|
3689 |
rfs4_op_remove(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
3690 |
struct compound_state *cs) |
|
3691 |
{
|
|
3692 |
REMOVE4args *args = &argop->nfs_argop4_u.opremove; |
|
3693 |
REMOVE4res *resp = &resop->nfs_resop4_u.opremove; |
|
3694 |
int error; |
|
3695 |
vnode_t *dvp, *vp; |
|
3696 |
struct vattr bdva, idva, adva; |
|
3697 |
char *nm; |
|
3698 |
uint_t len; |
|
3699 |
rfs4_file_t *fp; |
|
3700 |
int in_crit = 0; |
|
| 1676 | 3701 |
bslabel_t *clabel; |
| 0 | 3702 |
|
3703 |
/* CURRENT_FH: directory */ |
|
3704 |
dvp = cs->vp; |
|
3705 |
if (dvp == NULL) {
|
|
3706 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
3707 |
return; |
|
3708 |
} |
|
3709 |
||
3710 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
3711 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
3712 |
return; |
|
3713 |
} |
|
3714 |
||
3715 |
/* |
|
3716 |
* If there is an unshared filesystem mounted on this vnode, |
|
3717 |
* Do not allow to remove anything in this directory. |
|
3718 |
*/ |
|
3719 |
if (vn_ismntpt(dvp)) {
|
|
3720 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
3721 |
return; |
|
3722 |
} |
|
3723 |
||
3724 |
if (dvp->v_type != VDIR) {
|
|
3725 |
*cs->statusp = resp->status = NFS4ERR_NOTDIR; |
|
3726 |
return; |
|
3727 |
} |
|
3728 |
||
3729 |
if (!utf8_dir_verify(&args->target)) {
|
|
3730 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
3731 |
return; |
|
3732 |
} |
|
3733 |
||
3734 |
/* |
|
3735 |
* Lookup the file so that we can check if it's a directory |
|
3736 |
*/ |
|
3737 |
nm = utf8_to_fn(&args->target, &len, NULL); |
|
3738 |
if (nm == NULL) {
|
|
3739 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
3740 |
return; |
|
3741 |
} |
|
3742 |
||
3743 |
if (len > MAXNAMELEN) {
|
|
3744 |
*cs->statusp = resp->status = NFS4ERR_NAMETOOLONG; |
|
3745 |
kmem_free(nm, len); |
|
3746 |
return; |
|
3747 |
} |
|
3748 |
||
3749 |
if (rdonly4(cs->exi, cs->vp, req)) {
|
|
3750 |
*cs->statusp = resp->status = NFS4ERR_ROFS; |
|
3751 |
kmem_free(nm, len); |
|
3752 |
return; |
|
3753 |
} |
|
3754 |
||
3755 |
/* |
|
3756 |
* Lookup the file to determine type and while we are see if |
|
3757 |
* there is a file struct around and check for delegation. |
|
3758 |
* We don't need to acquire va_seq before this lookup, if |
|
3759 |
* it causes an update, cinfo.before will not match, which will |
|
3760 |
* trigger a cache flush even if atomic is TRUE. |
|
3761 |
*/ |
|
3762 |
if (fp = rfs4_lookup_and_findfile(dvp, nm, &vp, &error, cs->cr)) {
|
|
3763 |
if (rfs4_check_delegated_byfp(FWRITE, fp, TRUE, TRUE, TRUE, |
|
3764 |
NULL)) {
|
|
3765 |
VN_RELE(vp); |
|
3766 |
rfs4_file_rele(fp); |
|
3767 |
*cs->statusp = resp->status = NFS4ERR_DELAY; |
|
3768 |
kmem_free(nm, len); |
|
3769 |
return; |
|
3770 |
} |
|
3771 |
} |
|
3772 |
||
3773 |
/* Didn't find anything to remove */ |
|
3774 |
if (vp == NULL) {
|
|
3775 |
*cs->statusp = resp->status = error; |
|
3776 |
kmem_free(nm, len); |
|
3777 |
return; |
|
3778 |
} |
|
3779 |
||
3780 |
if (nbl_need_check(vp)) {
|
|
3781 |
nbl_start_crit(vp, RW_READER); |
|
3782 |
in_crit = 1; |
|
3783 |
if (nbl_conflict(vp, NBL_REMOVE, 0, 0, 0)) {
|
|
3784 |
*cs->statusp = resp->status = NFS4ERR_FILE_OPEN; |
|
3785 |
kmem_free(nm, len); |
|
3786 |
nbl_end_crit(vp); |
|
3787 |
VN_RELE(vp); |
|
3788 |
if (fp) {
|
|
3789 |
rfs4_clear_dont_grant(fp); |
|
3790 |
rfs4_file_rele(fp); |
|
3791 |
} |
|
3792 |
return; |
|
3793 |
} |
|
3794 |
} |
|
3795 |
||
| 1676 | 3796 |
/* check label before allowing removal */ |
3797 |
if (is_system_labeled()) {
|
|
3798 |
ASSERT(req->rq_label != NULL); |
|
3799 |
clabel = req->rq_label; |
|
3800 |
DTRACE_PROBE2(tx__rfs4__log__info__opremove__clabel, char *, |
|
3801 |
"got client label from request(1)", |
|
3802 |
struct svc_req *, req); |
|
3803 |
if (!blequal(&l_admin_low->tsl_label, clabel)) {
|
|
3804 |
if (!do_rfs4_label_check(clabel, vp, EQUALITY_CHECK)) {
|
|
3805 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
3806 |
kmem_free(nm, len); |
|
3807 |
if (in_crit) |
|
3808 |
nbl_end_crit(vp); |
|
3809 |
VN_RELE(vp); |
|
3810 |
if (fp) {
|
|
3811 |
rfs4_clear_dont_grant(fp); |
|
3812 |
rfs4_file_rele(fp); |
|
3813 |
} |
|
3814 |
return; |
|
3815 |
} |
|
3816 |
} |
|
3817 |
} |
|
3818 |
||
| 0 | 3819 |
/* Get dir "before" change value */ |
3820 |
bdva.va_mask = AT_CTIME|AT_SEQ; |
|
3821 |
error = VOP_GETATTR(dvp, &bdva, 0, cs->cr); |
|
3822 |
if (error) {
|
|
3823 |
*cs->statusp = resp->status = puterrno4(error); |
|
3824 |
kmem_free(nm, len); |
|
3825 |
return; |
|
3826 |
} |
|
3827 |
NFS4_SET_FATTR4_CHANGE(resp->cinfo.before, bdva.va_ctime) |
|
3828 |
||
3829 |
/* Actually do the REMOVE operation */ |
|
3830 |
if (vp->v_type == VDIR) {
|
|
3831 |
/* |
|
3832 |
* Can't remove a directory that has a mounted-on filesystem. |
|
3833 |
*/ |
|
3834 |
if (vn_ismntpt(vp)) {
|
|
3835 |
error = EACCES; |
|
3836 |
} else {
|
|
3837 |
/* |
|
3838 |
* System V defines rmdir to return EEXIST, |
|
3839 |
* not * ENOTEMPTY, if the directory is not |
|
3840 |
* empty. A System V NFS server needs to map |
|
3841 |
* NFS4ERR_EXIST to NFS4ERR_NOTEMPTY to |
|
3842 |
* transmit over the wire. |
|
3843 |
*/ |
|
3844 |
if ((error = VOP_RMDIR(dvp, nm, rootdir, cs->cr)) |
|
3845 |
== EEXIST) |
|
3846 |
error = ENOTEMPTY; |
|
3847 |
} |
|
3848 |
} else {
|
|
3849 |
if ((error = VOP_REMOVE(dvp, nm, cs->cr)) == 0 && |
|
3850 |
fp != NULL) {
|
|
3851 |
struct vattr va; |
|
|
154
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3852 |
vnode_t *tvp; |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3853 |
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3854 |
rfs4_dbe_lock(fp->dbe); |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3855 |
tvp = fp->vp; |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3856 |
if (tvp) |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3857 |
VN_HOLD(tvp); |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3858 |
rfs4_dbe_unlock(fp->dbe); |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3859 |
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3860 |
if (tvp) {
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3861 |
/* |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3862 |
* This is va_seq safe because we are not |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3863 |
* manipulating dvp. |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3864 |
*/ |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3865 |
va.va_mask = AT_NLINK; |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3866 |
if (!VOP_GETATTR(tvp, &va, 0, cs->cr) && |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3867 |
va.va_nlink == 0) {
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3868 |
/* Remove state on file remove */ |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3869 |
if (in_crit) {
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3870 |
nbl_end_crit(vp); |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3871 |
in_crit = 0; |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3872 |
} |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3873 |
rfs4_close_all_state(fp); |
| 0 | 3874 |
} |
|
154
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
3875 |
VN_RELE(tvp); |
| 0 | 3876 |
} |
3877 |
} |
|
3878 |
} |
|
3879 |
||
3880 |
if (in_crit) |
|
3881 |
nbl_end_crit(vp); |
|
3882 |
VN_RELE(vp); |
|
3883 |
||
3884 |
if (fp) {
|
|
3885 |
rfs4_clear_dont_grant(fp); |
|
3886 |
rfs4_file_rele(fp); |
|
3887 |
} |
|
3888 |
kmem_free(nm, len); |
|
3889 |
||
3890 |
if (error) {
|
|
3891 |
*cs->statusp = resp->status = puterrno4(error); |
|
3892 |
return; |
|
3893 |
} |
|
3894 |
||
3895 |
/* |
|
3896 |
* Get the initial "after" sequence number, if it fails, set to zero |
|
3897 |
*/ |
|
3898 |
idva.va_mask = AT_SEQ; |
|
3899 |
if (VOP_GETATTR(dvp, &idva, 0, cs->cr)) |
|
3900 |
idva.va_seq = 0; |
|
3901 |
||
3902 |
/* |
|
3903 |
* Force modified data and metadata out to stable storage. |
|
3904 |
*/ |
|
3905 |
(void) VOP_FSYNC(dvp, 0, cs->cr); |
|
3906 |
||
3907 |
/* |
|
3908 |
* Get "after" change value, if it fails, simply return the |
|
3909 |
* before value. |
|
3910 |
*/ |
|
3911 |
adva.va_mask = AT_CTIME|AT_SEQ; |
|
3912 |
if (VOP_GETATTR(dvp, &adva, 0, cs->cr)) {
|
|
3913 |
adva.va_ctime = bdva.va_ctime; |
|
3914 |
adva.va_seq = 0; |
|
3915 |
} |
|
3916 |
||
3917 |
NFS4_SET_FATTR4_CHANGE(resp->cinfo.after, adva.va_ctime) |
|
3918 |
||
3919 |
/* |
|
3920 |
* The cinfo.atomic = TRUE only if we have |
|
3921 |
* non-zero va_seq's, and it has incremented by exactly one |
|
3922 |
* during the VOP_REMOVE/RMDIR and it didn't change during |
|
3923 |
* the VOP_FSYNC. |
|
3924 |
*/ |
|
3925 |
if (bdva.va_seq && idva.va_seq && adva.va_seq && |
|
3926 |
idva.va_seq == (bdva.va_seq + 1) && |
|
3927 |
idva.va_seq == adva.va_seq) |
|
3928 |
resp->cinfo.atomic = TRUE; |
|
3929 |
else |
|
3930 |
resp->cinfo.atomic = FALSE; |
|
3931 |
||
3932 |
*cs->statusp = resp->status = NFS4_OK; |
|
3933 |
} |
|
3934 |
||
3935 |
/* |
|
3936 |
* rename: args: SAVED_FH: from directory, CURRENT_FH: target directory, |
|
3937 |
* oldname and newname. |
|
3938 |
* res: status. If success - CURRENT_FH unchanged, return change_info |
|
3939 |
* for both from and target directories. |
|
3940 |
*/ |
|
3941 |
/* ARGSUSED */ |
|
3942 |
static void |
|
3943 |
rfs4_op_rename(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
3944 |
struct compound_state *cs) |
|
3945 |
{
|
|
3946 |
RENAME4args *args = &argop->nfs_argop4_u.oprename; |
|
3947 |
RENAME4res *resp = &resop->nfs_resop4_u.oprename; |
|
3948 |
int error; |
|
3949 |
vnode_t *odvp; |
|
3950 |
vnode_t *ndvp; |
|
3951 |
vnode_t *srcvp, *targvp; |
|
3952 |
struct vattr obdva, oidva, oadva; |
|
3953 |
struct vattr nbdva, nidva, nadva; |
|
3954 |
char *onm, *nnm; |
|
3955 |
uint_t olen, nlen; |
|
3956 |
rfs4_file_t *fp, *sfp; |
|
3957 |
int in_crit_src, in_crit_targ; |
|
3958 |
int fp_rele_grant_hold, sfp_rele_grant_hold; |
|
| 1676 | 3959 |
bslabel_t *clabel; |
| 0 | 3960 |
|
3961 |
fp = sfp = NULL; |
|
3962 |
srcvp = targvp = NULL; |
|
3963 |
in_crit_src = in_crit_targ = 0; |
|
3964 |
fp_rele_grant_hold = sfp_rele_grant_hold = 0; |
|
3965 |
||
3966 |
/* CURRENT_FH: target directory */ |
|
3967 |
ndvp = cs->vp; |
|
3968 |
if (ndvp == NULL) {
|
|
3969 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
3970 |
return; |
|
3971 |
} |
|
3972 |
||
3973 |
/* SAVED_FH: from directory */ |
|
3974 |
odvp = cs->saved_vp; |
|
3975 |
if (odvp == NULL) {
|
|
3976 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
3977 |
return; |
|
3978 |
} |
|
3979 |
||
3980 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
3981 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
3982 |
return; |
|
3983 |
} |
|
3984 |
||
3985 |
/* |
|
3986 |
* If there is an unshared filesystem mounted on this vnode, |
|
3987 |
* do not allow to rename objects in this directory. |
|
3988 |
*/ |
|
3989 |
if (vn_ismntpt(odvp)) {
|
|
3990 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
3991 |
return; |
|
3992 |
} |
|
3993 |
||
3994 |
/* |
|
3995 |
* If there is an unshared filesystem mounted on this vnode, |
|
3996 |
* do not allow to rename to this directory. |
|
3997 |
*/ |
|
3998 |
if (vn_ismntpt(ndvp)) {
|
|
3999 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
4000 |
return; |
|
4001 |
} |
|
4002 |
||
4003 |
if (odvp->v_type != VDIR || ndvp->v_type != VDIR) {
|
|
4004 |
*cs->statusp = resp->status = NFS4ERR_NOTDIR; |
|
4005 |
return; |
|
4006 |
} |
|
4007 |
||
4008 |
if (cs->saved_exi != cs->exi) {
|
|
4009 |
*cs->statusp = resp->status = NFS4ERR_XDEV; |
|
4010 |
return; |
|
4011 |
} |
|
4012 |
||
4013 |
if (!utf8_dir_verify(&args->oldname)) {
|
|
4014 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
4015 |
return; |
|
4016 |
} |
|
4017 |
||
4018 |
if (!utf8_dir_verify(&args->newname)) {
|
|
4019 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
4020 |
return; |
|
4021 |
} |
|
4022 |
||
4023 |
onm = utf8_to_fn(&args->oldname, &olen, NULL); |
|
4024 |
if (onm == NULL) {
|
|
4025 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
4026 |
return; |
|
4027 |
} |
|
4028 |
||
4029 |
nnm = utf8_to_fn(&args->newname, &nlen, NULL); |
|
4030 |
if (nnm == NULL) {
|
|
4031 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
4032 |
kmem_free(onm, olen); |
|
4033 |
return; |
|
4034 |
} |
|
4035 |
||
4036 |
if (olen > MAXNAMELEN || nlen > MAXNAMELEN) {
|
|
4037 |
*cs->statusp = resp->status = NFS4ERR_NAMETOOLONG; |
|
4038 |
kmem_free(onm, olen); |
|
4039 |
kmem_free(nnm, nlen); |
|
4040 |
return; |
|
4041 |
} |
|
4042 |
||
4043 |
||
4044 |
if (rdonly4(cs->exi, cs->vp, req)) {
|
|
4045 |
*cs->statusp = resp->status = NFS4ERR_ROFS; |
|
4046 |
kmem_free(onm, olen); |
|
4047 |
kmem_free(nnm, nlen); |
|
4048 |
return; |
|
4049 |
} |
|
4050 |
||
| 1676 | 4051 |
/* check label of the target dir */ |
4052 |
if (is_system_labeled()) {
|
|
4053 |
ASSERT(req->rq_label != NULL); |
|
4054 |
clabel = req->rq_label; |
|
4055 |
DTRACE_PROBE2(tx__rfs4__log__info__oprename__clabel, char *, |
|
4056 |
"got client label from request(1)", |
|
4057 |
struct svc_req *, req); |
|
4058 |
if (!blequal(&l_admin_low->tsl_label, clabel)) {
|
|
4059 |
if (!do_rfs4_label_check(clabel, ndvp, |
|
4060 |
EQUALITY_CHECK)) {
|
|
4061 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
4062 |
return; |
|
4063 |
} |
|
4064 |
} |
|
4065 |
} |
|
4066 |
||
| 0 | 4067 |
/* |
4068 |
* Is the source a file and have a delegation? |
|
4069 |
* We don't need to acquire va_seq before these lookups, if |
|
4070 |
* it causes an update, cinfo.before will not match, which will |
|
4071 |
* trigger a cache flush even if atomic is TRUE. |
|
4072 |
*/ |
|
4073 |
if (sfp = rfs4_lookup_and_findfile(odvp, onm, &srcvp, &error, cs->cr)) {
|
|
4074 |
if (rfs4_check_delegated_byfp(FWRITE, sfp, TRUE, TRUE, TRUE, |
|
4075 |
NULL)) {
|
|
4076 |
*cs->statusp = resp->status = NFS4ERR_DELAY; |
|
4077 |
goto err_out; |
|
4078 |
} |
|
4079 |
} |
|
4080 |
||
4081 |
if (srcvp == NULL) {
|
|
4082 |
*cs->statusp = resp->status = puterrno4(error); |
|
4083 |
kmem_free(onm, olen); |
|
4084 |
kmem_free(nnm, nlen); |
|
4085 |
return; |
|
4086 |
} |
|
4087 |
||
4088 |
sfp_rele_grant_hold = 1; |
|
4089 |
||
4090 |
/* Does the destination exist and a file and have a delegation? */ |
|
4091 |
if (fp = rfs4_lookup_and_findfile(ndvp, nnm, &targvp, NULL, cs->cr)) {
|
|
4092 |
if (rfs4_check_delegated_byfp(FWRITE, fp, TRUE, TRUE, TRUE, |
|
4093 |
NULL)) {
|
|
4094 |
*cs->statusp = resp->status = NFS4ERR_DELAY; |
|
4095 |
goto err_out; |
|
4096 |
} |
|
4097 |
} |
|
4098 |
fp_rele_grant_hold = 1; |
|
4099 |
||
4100 |
||
4101 |
/* Check for NBMAND lock on both source and target */ |
|
4102 |
if (nbl_need_check(srcvp)) {
|
|
4103 |
nbl_start_crit(srcvp, RW_READER); |
|
4104 |
in_crit_src = 1; |
|
4105 |
if (nbl_conflict(srcvp, NBL_RENAME, 0, 0, 0)) {
|
|
4106 |
*cs->statusp = resp->status = NFS4ERR_FILE_OPEN; |
|
4107 |
goto err_out; |
|
4108 |
} |
|
4109 |
} |
|
4110 |
||
4111 |
if (targvp && nbl_need_check(targvp)) {
|
|
4112 |
nbl_start_crit(targvp, RW_READER); |
|
4113 |
in_crit_targ = 1; |
|
4114 |
if (nbl_conflict(targvp, NBL_REMOVE, 0, 0, 0)) {
|
|
4115 |
*cs->statusp = resp->status = NFS4ERR_FILE_OPEN; |
|
4116 |
goto err_out; |
|
4117 |
} |
|
4118 |
} |
|
4119 |
||
4120 |
/* Get source "before" change value */ |
|
4121 |
obdva.va_mask = AT_CTIME|AT_SEQ; |
|
4122 |
error = VOP_GETATTR(odvp, &obdva, 0, cs->cr); |
|
4123 |
if (!error) {
|
|
4124 |
nbdva.va_mask = AT_CTIME|AT_SEQ; |
|
4125 |
error = VOP_GETATTR(ndvp, &nbdva, 0, cs->cr); |
|
4126 |
} |
|
4127 |
if (error) {
|
|
4128 |
*cs->statusp = resp->status = puterrno4(error); |
|
4129 |
goto err_out; |
|
4130 |
} |
|
4131 |
||
4132 |
NFS4_SET_FATTR4_CHANGE(resp->source_cinfo.before, obdva.va_ctime) |
|
4133 |
NFS4_SET_FATTR4_CHANGE(resp->target_cinfo.before, nbdva.va_ctime) |
|
4134 |
||
4135 |
if ((error = VOP_RENAME(odvp, onm, ndvp, nnm, cs->cr)) == 0 && |
|
4136 |
fp != NULL) {
|
|
4137 |
struct vattr va; |
|
|
154
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4138 |
vnode_t *tvp; |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4139 |
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4140 |
rfs4_dbe_lock(fp->dbe); |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4141 |
tvp = fp->vp; |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4142 |
if (tvp) |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4143 |
VN_HOLD(tvp); |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4144 |
rfs4_dbe_unlock(fp->dbe); |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4145 |
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4146 |
if (tvp) {
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4147 |
va.va_mask = AT_NLINK; |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4148 |
if (!VOP_GETATTR(tvp, &va, 0, cs->cr) && |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4149 |
va.va_nlink == 0) {
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4150 |
/* The file is gone and so should the state */ |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4151 |
if (in_crit_targ) {
|
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4152 |
nbl_end_crit(targvp); |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4153 |
in_crit_targ = 0; |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4154 |
} |
|
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4155 |
rfs4_close_all_state(fp); |
| 0 | 4156 |
} |
|
154
7a745d3804a2
6262563 NFSv4 server panic in fop_getattr due to bad call by rfs4_op_remove
shepler
parents:
0
diff
changeset
|
4157 |
VN_RELE(tvp); |
| 0 | 4158 |
} |
4159 |
} |
|
|
1146
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4160 |
if (error == 0) {
|
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4161 |
char *tmp; |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4162 |
|
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4163 |
/* fix the path name for the renamed file */ |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4164 |
mutex_enter(&srcvp->v_lock); |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4165 |
tmp = srcvp->v_path; |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4166 |
srcvp->v_path = NULL; |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4167 |
mutex_exit(&srcvp->v_lock); |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4168 |
vn_setpath(rootdir, ndvp, srcvp, nnm, nlen - 1); |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4169 |
if (tmp != NULL) |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4170 |
kmem_free(tmp, strlen(tmp) + 1); |
|
c3555cdf52c2
6331154 v_path contains old name after file is renamed
jwahlig
parents:
602
diff
changeset
|
4171 |
} |
| 0 | 4172 |
|
4173 |
if (in_crit_src) |
|
4174 |
nbl_end_crit(srcvp); |
|
4175 |
if (srcvp) |
|
4176 |
VN_RELE(srcvp); |
|
4177 |
if (in_crit_targ) |
|
4178 |
nbl_end_crit(targvp); |
|
4179 |
if (targvp) |
|
4180 |
VN_RELE(targvp); |
|
4181 |
||
4182 |
if (sfp) {
|
|
4183 |
rfs4_clear_dont_grant(sfp); |
|
4184 |
rfs4_file_rele(sfp); |
|
4185 |
} |
|
4186 |
if (fp) {
|
|
4187 |
rfs4_clear_dont_grant(fp); |
|
4188 |
rfs4_file_rele(fp); |
|
4189 |
} |
|
4190 |
||
4191 |
kmem_free(onm, olen); |
|
4192 |
kmem_free(nnm, nlen); |
|
4193 |
||
4194 |
/* |
|
4195 |
* Get the initial "after" sequence number, if it fails, set to zero |
|
4196 |
*/ |
|
4197 |
oidva.va_mask = AT_SEQ; |
|
4198 |
if (VOP_GETATTR(odvp, &oidva, 0, cs->cr)) |
|
4199 |
oidva.va_seq = 0; |
|
4200 |
||
4201 |
nidva.va_mask = AT_SEQ; |
|
4202 |
if (VOP_GETATTR(ndvp, &nidva, 0, cs->cr)) |
|
4203 |
nidva.va_seq = 0; |
|
4204 |
||
4205 |
/* |
|
4206 |
* Force modified data and metadata out to stable storage. |
|
4207 |
*/ |
|
4208 |
(void) VOP_FSYNC(odvp, 0, cs->cr); |
|
4209 |
(void) VOP_FSYNC(ndvp, 0, cs->cr); |
|
4210 |
||
4211 |
if (error) {
|
|
4212 |
*cs->statusp = resp->status = puterrno4(error); |
|
4213 |
return; |
|
4214 |
} |
|
4215 |
||
4216 |
/* |
|
4217 |
* Get "after" change values, if it fails, simply return the |
|
4218 |
* before value. |
|
4219 |
*/ |
|
4220 |
oadva.va_mask = AT_CTIME|AT_SEQ; |
|
4221 |
if (VOP_GETATTR(odvp, &oadva, 0, cs->cr)) {
|
|
4222 |
oadva.va_ctime = obdva.va_ctime; |
|
4223 |
oadva.va_seq = 0; |
|
4224 |
} |
|
4225 |
||
4226 |
nadva.va_mask = AT_CTIME|AT_SEQ; |
|
4227 |
if (VOP_GETATTR(odvp, &nadva, 0, cs->cr)) {
|
|
4228 |
nadva.va_ctime = nbdva.va_ctime; |
|
4229 |
nadva.va_seq = 0; |
|
4230 |
} |
|
4231 |
||
4232 |
NFS4_SET_FATTR4_CHANGE(resp->source_cinfo.after, oadva.va_ctime) |
|
4233 |
NFS4_SET_FATTR4_CHANGE(resp->target_cinfo.after, nadva.va_ctime) |
|
4234 |
||
4235 |
/* |
|
4236 |
* The cinfo.atomic = TRUE only if we have |
|
4237 |
* non-zero va_seq's, and it has incremented by exactly one |
|
4238 |
* during the VOP_RENAME and it didn't change during the VOP_FSYNC. |
|
4239 |
*/ |
|
4240 |
if (obdva.va_seq && oidva.va_seq && oadva.va_seq && |
|
4241 |
oidva.va_seq == (obdva.va_seq + 1) && |
|
4242 |
oidva.va_seq == oadva.va_seq) |
|
4243 |
resp->source_cinfo.atomic = TRUE; |
|
4244 |
else |
|
4245 |
resp->source_cinfo.atomic = FALSE; |
|
4246 |
||
4247 |
if (nbdva.va_seq && nidva.va_seq && nadva.va_seq && |
|
4248 |
nidva.va_seq == (nbdva.va_seq + 1) && |
|
4249 |
nidva.va_seq == nadva.va_seq) |
|
4250 |
resp->target_cinfo.atomic = TRUE; |
|
4251 |
else |
|
4252 |
resp->target_cinfo.atomic = FALSE; |
|
4253 |
||
4254 |
#ifdef VOLATILE_FH_TEST |
|
4255 |
{
|
|
4256 |
extern void add_volrnm_fh(struct exportinfo *, vnode_t *); |
|
4257 |
||
4258 |
/* |
|
4259 |
* Add the renamed file handle to the volatile rename list |
|
4260 |
*/ |
|
4261 |
if (cs->exi->exi_export.ex_flags & EX_VOLRNM) {
|
|
4262 |
/* file handles may expire on rename */ |
|
4263 |
vnode_t *vp; |
|
4264 |
||
4265 |
nnm = utf8_to_fn(&args->newname, &nlen, NULL); |
|
4266 |
/* |
|
4267 |
* Already know that nnm will be a valid string |
|
4268 |
*/ |
|
4269 |
error = VOP_LOOKUP(ndvp, nnm, &vp, NULL, 0, NULL, cs->cr); |
|
4270 |
kmem_free(nnm, nlen); |
|
4271 |
if (!error) {
|
|
4272 |
add_volrnm_fh(cs->exi, vp); |
|
4273 |
VN_RELE(vp); |
|
4274 |
} |
|
4275 |
} |
|
4276 |
} |
|
4277 |
#endif /* VOLATILE_FH_TEST */ |
|
4278 |
||
4279 |
*cs->statusp = resp->status = NFS4_OK; |
|
4280 |
return; |
|
4281 |
||
4282 |
err_out: |
|
4283 |
kmem_free(onm, olen); |
|
4284 |
kmem_free(nnm, nlen); |
|
4285 |
||
4286 |
if (in_crit_src) nbl_end_crit(srcvp); |
|
4287 |
if (in_crit_targ) nbl_end_crit(targvp); |
|
4288 |
if (targvp) VN_RELE(targvp); |
|
4289 |
if (srcvp) VN_RELE(srcvp); |
|
4290 |
if (sfp) {
|
|
4291 |
if (sfp_rele_grant_hold) rfs4_clear_dont_grant(sfp); |
|
4292 |
rfs4_file_rele(sfp); |
|
4293 |
} |
|
4294 |
if (fp) {
|
|
4295 |
if (fp_rele_grant_hold) rfs4_clear_dont_grant(fp); |
|
4296 |
rfs4_file_rele(fp); |
|
4297 |
} |
|
4298 |
} |
|
4299 |
||
4300 |
/* ARGSUSED */ |
|
4301 |
static void |
|
4302 |
rfs4_op_renew(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
4303 |
struct compound_state *cs) |
|
4304 |
{
|
|
4305 |
RENEW4args *args = &argop->nfs_argop4_u.oprenew; |
|
4306 |
RENEW4res *resp = &resop->nfs_resop4_u.oprenew; |
|
4307 |
rfs4_client_t *cp; |
|
4308 |
||
4309 |
if ((cp = rfs4_findclient_by_id(args->clientid, FALSE)) == NULL) {
|
|
4310 |
*cs->statusp = resp->status = |
|
4311 |
rfs4_check_clientid(&args->clientid, 0); |
|
4312 |
return; |
|
4313 |
} |
|
4314 |
||
4315 |
if (rfs4_lease_expired(cp)) {
|
|
4316 |
rfs4_client_rele(cp); |
|
4317 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
4318 |
return; |
|
4319 |
} |
|
4320 |
||
4321 |
rfs4_update_lease(cp); |
|
4322 |
||
4323 |
mutex_enter(cp->cbinfo.cb_lock); |
|
4324 |
if (cp->cbinfo.cb_notified_of_cb_path_down == FALSE) {
|
|
4325 |
cp->cbinfo.cb_notified_of_cb_path_down = TRUE; |
|
4326 |
*cs->statusp = resp->status = NFS4ERR_CB_PATH_DOWN; |
|
4327 |
} else {
|
|
4328 |
*cs->statusp = resp->status = NFS4_OK; |
|
4329 |
} |
|
4330 |
mutex_exit(cp->cbinfo.cb_lock); |
|
4331 |
||
4332 |
rfs4_client_rele(cp); |
|
4333 |
||
4334 |
} |
|
4335 |
||
4336 |
/* ARGSUSED */ |
|
4337 |
static void |
|
4338 |
rfs4_op_restorefh(nfs_argop4 *args, nfs_resop4 *resop, struct svc_req *req, |
|
4339 |
struct compound_state *cs) |
|
4340 |
{
|
|
4341 |
RESTOREFH4res *resp = &resop->nfs_resop4_u.oprestorefh; |
|
4342 |
||
4343 |
/* No need to check cs->access - we are not accessing any object */ |
|
4344 |
if ((cs->saved_vp == NULL) || (cs->saved_fh.nfs_fh4_val == NULL)) {
|
|
4345 |
*cs->statusp = resp->status = NFS4ERR_RESTOREFH; |
|
4346 |
return; |
|
4347 |
} |
|
4348 |
if (cs->vp != NULL) {
|
|
4349 |
VN_RELE(cs->vp); |
|
4350 |
} |
|
4351 |
cs->vp = cs->saved_vp; |
|
4352 |
cs->saved_vp = NULL; |
|
4353 |
cs->exi = cs->saved_exi; |
|
4354 |
nfs_fh4_copy(&cs->saved_fh, &cs->fh); |
|
4355 |
*cs->statusp = resp->status = NFS4_OK; |
|
4356 |
cs->deleg = FALSE; |
|
4357 |
} |
|
4358 |
||
4359 |
/* ARGSUSED */ |
|
4360 |
static void |
|
4361 |
rfs4_op_savefh(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
4362 |
struct compound_state *cs) |
|
4363 |
{
|
|
4364 |
SAVEFH4res *resp = &resop->nfs_resop4_u.opsavefh; |
|
4365 |
||
4366 |
/* No need to check cs->access - we are not accessing any object */ |
|
4367 |
if (cs->vp == NULL) {
|
|
4368 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
4369 |
return; |
|
4370 |
} |
|
4371 |
if (cs->saved_vp != NULL) {
|
|
4372 |
VN_RELE(cs->saved_vp); |
|
4373 |
} |
|
4374 |
cs->saved_vp = cs->vp; |
|
4375 |
VN_HOLD(cs->saved_vp); |
|
4376 |
cs->saved_exi = cs->exi; |
|
4377 |
/* |
|
4378 |
* since SAVEFH is fairly rare, don't alloc space for its fh |
|
4379 |
* unless necessary. |
|
4380 |
*/ |
|
4381 |
if (cs->saved_fh.nfs_fh4_val == NULL) {
|
|
4382 |
cs->saved_fh.nfs_fh4_val = kmem_alloc(NFS4_FHSIZE, KM_SLEEP); |
|
4383 |
} |
|
4384 |
nfs_fh4_copy(&cs->fh, &cs->saved_fh); |
|
4385 |
*cs->statusp = resp->status = NFS4_OK; |
|
4386 |
} |
|
4387 |
||
4388 |
/* |
|
4389 |
* rfs4_verify_attr is called when nfsv4 Setattr failed, but we wish to |
|
4390 |
* return the bitmap of attrs that were set successfully. It is also |
|
4391 |
* called by Verify/Nverify to test the vattr/vfsstat attrs. It should |
|
4392 |
* always be called only after rfs4_do_set_attrs(). |
|
4393 |
* |
|
4394 |
* Verify that the attributes are same as the expected ones. sargp->vap |
|
4395 |
* and sargp->sbp contain the input attributes as translated from fattr4. |
|
4396 |
* |
|
4397 |
* This function verifies only the attrs that correspond to a vattr or |
|
4398 |
* vfsstat struct. That is because of the extra step needed to get the |
|
4399 |
* corresponding system structs. Other attributes have already been set or |
|
4400 |
* verified by do_rfs4_set_attrs. |
|
4401 |
* |
|
4402 |
* Return 0 if all attrs match, -1 if some don't, error if error processing. |
|
4403 |
*/ |
|
4404 |
static int |
|
4405 |
rfs4_verify_attr(struct nfs4_svgetit_arg *sargp, |
|
4406 |
bitmap4 *resp, struct nfs4_ntov_table *ntovp) |
|
4407 |
{
|
|
4408 |
int error, ret_error = 0; |
|
4409 |
int i, k; |
|
4410 |
uint_t sva_mask = sargp->vap->va_mask; |
|
4411 |
uint_t vbit; |
|
4412 |
union nfs4_attr_u *na; |
|
4413 |
uint8_t *amap; |
|
4414 |
bool_t getsb = ntovp->vfsstat; |
|
4415 |
||
4416 |
if (sva_mask != 0) {
|
|
4417 |
/* |
|
4418 |
* Okay to overwrite sargp->vap because we verify based |
|
4419 |
* on the incoming values. |
|
4420 |
*/ |
|
4421 |
ret_error = VOP_GETATTR(sargp->cs->vp, sargp->vap, 0, |
|
4422 |
sargp->cs->cr); |
|
4423 |
if (ret_error) {
|
|
4424 |
if (resp == NULL) |
|
4425 |
return (ret_error); |
|
4426 |
/* |
|
4427 |
* Must return bitmap of successful attrs |
|
4428 |
*/ |
|
4429 |
sva_mask = 0; /* to prevent checking vap later */ |
|
4430 |
} else {
|
|
4431 |
/* |
|
4432 |
* Some file systems clobber va_mask. it is probably |
|
4433 |
* wrong of them to do so, nonethless we practice |
|
4434 |
* defensive coding. |
|
4435 |
* See bug id 4276830. |
|
4436 |
*/ |
|
4437 |
sargp->vap->va_mask = sva_mask; |
|
4438 |
} |
|
4439 |
} |
|
4440 |
||
4441 |
if (getsb) {
|
|
4442 |
/* |
|
4443 |
* Now get the superblock and loop on the bitmap, as there is |
|
4444 |
* no simple way of translating from superblock to bitmap4. |
|
4445 |
*/ |
|
4446 |
ret_error = VFS_STATVFS(sargp->cs->vp->v_vfsp, sargp->sbp); |
|
4447 |
if (ret_error) {
|
|
4448 |
if (resp == NULL) |
|
4449 |
goto errout; |
|
4450 |
getsb = FALSE; |
|
4451 |
} |
|
4452 |
} |
|
4453 |
||
4454 |
/* |
|
4455 |
* Now loop and verify each attribute which getattr returned |
|
4456 |
* whether it's the same as the input. |
|
4457 |
*/ |
|
4458 |
if (resp == NULL && !getsb && (sva_mask == 0)) |
|
4459 |
goto errout; |
|
4460 |
||
4461 |
na = ntovp->na; |
|
4462 |
amap = ntovp->amap; |
|
4463 |
k = 0; |
|
4464 |
for (i = 0; i < ntovp->attrcnt; i++, na++, amap++) {
|
|
4465 |
k = *amap; |
|
4466 |
ASSERT(nfs4_ntov_map[k].nval == k); |
|
4467 |
vbit = nfs4_ntov_map[k].vbit; |
|
4468 |
||
4469 |
/* |
|
4470 |
* If vattr attribute but VOP_GETATTR failed, or it's |
|
4471 |
* superblock attribute but VFS_STATVFS failed, skip |
|
4472 |
*/ |
|
4473 |
if (vbit) {
|
|
4474 |
if ((vbit & sva_mask) == 0) |
|
4475 |
continue; |
|
4476 |
} else if (!(getsb && nfs4_ntov_map[k].vfsstat)) {
|
|
4477 |
continue; |
|
4478 |
} |
|
4479 |
error = (*nfs4_ntov_map[k].sv_getit)( |
|
4480 |
NFS4ATTR_VERIT, sargp, na); |
|
4481 |
if (resp != NULL) {
|
|
4482 |
if (error) |
|
4483 |
ret_error = -1; /* not all match */ |
|
4484 |
else /* update response bitmap */ |
|
4485 |
*resp |= nfs4_ntov_map[k].fbit; |
|
4486 |
continue; |
|
4487 |
} |
|
4488 |
if (error) {
|
|
4489 |
ret_error = -1; /* not all match */ |
|
4490 |
break; |
|
4491 |
} |
|
4492 |
} |
|
4493 |
errout: |
|
4494 |
return (ret_error); |
|
4495 |
} |
|
4496 |
||
4497 |
/* |
|
4498 |
* Decode the attribute to be set/verified. If the attr requires a sys op |
|
4499 |
* (VOP_GETATTR, VFS_VFSSTAT), and the request is to verify, then don't |
|
4500 |
* call the sv_getit function for it, because the sys op hasn't yet been done. |
|
4501 |
* Return 0 for success, error code if failed. |
|
4502 |
* |
|
4503 |
* Note: the decoded arg is not freed here but in nfs4_ntov_table_free. |
|
4504 |
*/ |
|
4505 |
static int |
|
4506 |
decode_fattr4_attr(nfs4_attr_cmd_t cmd, struct nfs4_svgetit_arg *sargp, |
|
4507 |
int k, XDR *xdrp, bitmap4 *resp_bval, union nfs4_attr_u *nap) |
|
4508 |
{
|
|
4509 |
int error = 0; |
|
4510 |
bool_t set_later; |
|
4511 |
||
4512 |
sargp->vap->va_mask |= nfs4_ntov_map[k].vbit; |
|
4513 |
||
4514 |
if ((*nfs4_ntov_map[k].xfunc)(xdrp, nap)) {
|
|
4515 |
set_later = nfs4_ntov_map[k].vbit || nfs4_ntov_map[k].vfsstat; |
|
4516 |
/* |
|
4517 |
* don't verify yet if a vattr or sb dependent attr, |
|
4518 |
* because we don't have their sys values yet. |
|
4519 |
* Will be done later. |
|
4520 |
*/ |
|
4521 |
if (! (set_later && (cmd == NFS4ATTR_VERIT))) {
|
|
4522 |
/* |
|
4523 |
* ACLs are a special case, since setting the MODE |
|
4524 |
* conflicts with setting the ACL. We delay setting |
|
4525 |
* the ACL until all other attributes have been set. |
|
4526 |
* The ACL gets set in do_rfs4_op_setattr(). |
|
4527 |
*/ |
|
4528 |
if (nfs4_ntov_map[k].fbit != FATTR4_ACL_MASK) {
|
|
4529 |
error = (*nfs4_ntov_map[k].sv_getit)(cmd, |
|
4530 |
sargp, nap); |
|
4531 |
if (error) {
|
|
4532 |
xdr_free(nfs4_ntov_map[k].xfunc, |
|
4533 |
(caddr_t)nap); |
|
4534 |
} |
|
4535 |
} |
|
4536 |
} |
|
4537 |
} else {
|
|
4538 |
#ifdef DEBUG |
|
4539 |
cmn_err(CE_NOTE, "decode_fattr4_attr: error " |
|
4540 |
"decoding attribute %d\n", k); |
|
4541 |
#endif |
|
4542 |
error = EINVAL; |
|
4543 |
} |
|
4544 |
if (!error && resp_bval && !set_later) {
|
|
4545 |
*resp_bval |= nfs4_ntov_map[k].fbit; |
|
4546 |
} |
|
4547 |
||
4548 |
return (error); |
|
4549 |
} |
|
4550 |
||
4551 |
/* |
|
4552 |
* Set vattr based on incoming fattr4 attrs - used by setattr. |
|
4553 |
* Set response mask. Ignore any values that are not writable vattr attrs. |
|
4554 |
*/ |
|
4555 |
static nfsstat4 |
|
4556 |
do_rfs4_set_attrs(bitmap4 *resp, fattr4 *fattrp, struct compound_state *cs, |
|
4557 |
struct nfs4_svgetit_arg *sargp, struct nfs4_ntov_table *ntovp, |
|
4558 |
nfs4_attr_cmd_t cmd) |
|
4559 |
{
|
|
4560 |
int error = 0; |
|
4561 |
int i; |
|
4562 |
char *attrs = fattrp->attrlist4; |
|
4563 |
uint32_t attrslen = fattrp->attrlist4_len; |
|
4564 |
XDR xdr; |
|
4565 |
nfsstat4 status = NFS4_OK; |
|
4566 |
vnode_t *vp = cs->vp; |
|
4567 |
union nfs4_attr_u *na; |
|
4568 |
uint8_t *amap; |
|
4569 |
||
4570 |
#ifndef lint |
|
4571 |
/* |
|
4572 |
* Make sure that maximum attribute number can be expressed as an |
|
4573 |
* 8 bit quantity. |
|
4574 |
*/ |
|
4575 |
ASSERT(NFS4_MAXNUM_ATTRS <= (UINT8_MAX + 1)); |
|
4576 |
#endif |
|
4577 |
||
4578 |
if (vp == NULL) {
|
|
4579 |
if (resp) |
|
4580 |
*resp = 0; |
|
4581 |
return (NFS4ERR_NOFILEHANDLE); |
|
4582 |
} |
|
4583 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
4584 |
if (resp) |
|
4585 |
*resp = 0; |
|
4586 |
return (NFS4ERR_ACCESS); |
|
4587 |
} |
|
4588 |
||
4589 |
sargp->op = cmd; |
|
4590 |
sargp->cs = cs; |
|
4591 |
sargp->flag = 0; /* may be set later */ |
|
4592 |
sargp->vap->va_mask = 0; |
|
4593 |
sargp->rdattr_error = NFS4_OK; |
|
4594 |
sargp->rdattr_error_req = FALSE; |
|
4595 |
/* sargp->sbp is set by the caller */ |
|
4596 |
||
4597 |
xdrmem_create(&xdr, attrs, attrslen, XDR_DECODE); |
|
4598 |
||
4599 |
na = ntovp->na; |
|
4600 |
amap = ntovp->amap; |
|
4601 |
||
4602 |
/* |
|
4603 |
* The following loop iterates on the nfs4_ntov_map checking |
|
4604 |
* if the fbit is set in the requested bitmap. |
|
4605 |
* If set then we process the arguments using the |
|
4606 |
* rfs4_fattr4 conversion functions to populate the setattr |
|
4607 |
* vattr and va_mask. Any settable attrs that are not using vattr |
|
4608 |
* will be set in this loop. |
|
4609 |
*/ |
|
4610 |
for (i = 0; i < nfs4_ntov_map_size; i++) {
|
|
4611 |
if (!(fattrp->attrmask & nfs4_ntov_map[i].fbit)) {
|
|
4612 |
continue; |
|
4613 |
} |
|
4614 |
/* |
|
4615 |
* If setattr, must be a writable attr. |
|
4616 |
* If verify/nverify, must be a readable attr. |
|
4617 |
*/ |
|
4618 |
if ((error = (*nfs4_ntov_map[i].sv_getit)( |
|
4619 |
NFS4ATTR_SUPPORTED, sargp, NULL)) != 0) {
|
|
4620 |
/* |
|
4621 |
* Client tries to set/verify an |
|
4622 |
* unsupported attribute, tries to set |
|
4623 |
* a read only attr or verify a write |
|
4624 |
* only one - error! |
|
4625 |
*/ |
|
4626 |
break; |
|
4627 |
} |
|
4628 |
/* |
|
4629 |
* Decode the attribute to set/verify |
|
4630 |
*/ |
|
4631 |
error = decode_fattr4_attr(cmd, sargp, nfs4_ntov_map[i].nval, |
|
4632 |
&xdr, resp ? resp : NULL, na); |
|
4633 |
if (error) |
|
4634 |
break; |
|
4635 |
*amap++ = (uint8_t)nfs4_ntov_map[i].nval; |
|
4636 |
na++; |
|
4637 |
(ntovp->attrcnt)++; |
|
4638 |
if (nfs4_ntov_map[i].vfsstat) |
|
4639 |
ntovp->vfsstat = TRUE; |
|
4640 |
} |
|
4641 |
||
4642 |
if (error != 0) |
|
4643 |
status = (error == ENOTSUP ? NFS4ERR_ATTRNOTSUPP : |
|
4644 |
puterrno4(error)); |
|
4645 |
/* xdrmem_destroy(&xdrs); */ /* NO-OP */ |
|
4646 |
return (status); |
|
4647 |
} |
|
4648 |
||
4649 |
static nfsstat4 |
|
4650 |
do_rfs4_op_setattr(bitmap4 *resp, fattr4 *fattrp, struct compound_state *cs, |
|
4651 |
stateid4 *stateid) |
|
4652 |
{
|
|
4653 |
int error = 0; |
|
4654 |
struct nfs4_svgetit_arg sarg; |
|
4655 |
bool_t trunc; |
|
4656 |
||
4657 |
nfsstat4 status = NFS4_OK; |
|
4658 |
cred_t *cr = cs->cr; |
|
4659 |
vnode_t *vp = cs->vp; |
|
4660 |
struct nfs4_ntov_table ntov; |
|
4661 |
struct statvfs64 sb; |
|
4662 |
struct vattr bva; |
|
4663 |
struct flock64 bf; |
|
4664 |
int in_crit = 0; |
|
4665 |
uint_t saved_mask = 0; |
|
4666 |
caller_context_t ct; |
|
4667 |
||
4668 |
*resp = 0; |
|
4669 |
sarg.sbp = &sb; |
|
4670 |
nfs4_ntov_table_init(&ntov); |
|
4671 |
status = do_rfs4_set_attrs(resp, fattrp, cs, &sarg, &ntov, |
|
4672 |
NFS4ATTR_SETIT); |
|
4673 |
if (status != NFS4_OK) {
|
|
4674 |
/* |
|
4675 |
* failed set attrs |
|
4676 |
*/ |
|
4677 |
goto done; |
|
4678 |
} |
|
4679 |
if ((sarg.vap->va_mask == 0) && |
|
4680 |
(! (fattrp->attrmask & FATTR4_ACL_MASK))) {
|
|
4681 |
/* |
|
4682 |
* no further work to be done |
|
4683 |
*/ |
|
4684 |
goto done; |
|
4685 |
} |
|
4686 |
||
4687 |
/* |
|
4688 |
* If we got a request to set the ACL and the MODE, only |
|
4689 |
* allow changing VSUID, VSGID, and VSVTX. Attempting |
|
4690 |
* to change any other bits, along with setting an ACL, |
|
4691 |
* gives NFS4ERR_INVAL. |
|
4692 |
*/ |
|
4693 |
if ((fattrp->attrmask & FATTR4_ACL_MASK) && |
|
4694 |
(fattrp->attrmask & FATTR4_MODE_MASK)) {
|
|
4695 |
vattr_t va; |
|
4696 |
||
4697 |
va.va_mask = AT_MODE; |
|
4698 |
error = VOP_GETATTR(vp, &va, 0, cs->cr); |
|
4699 |
if (error) {
|
|
4700 |
status = puterrno4(error); |
|
4701 |
goto done; |
|
4702 |
} |
|
4703 |
if ((sarg.vap->va_mode ^ va.va_mode) & |
|
4704 |
~(VSUID | VSGID | VSVTX)) {
|
|
4705 |
status = NFS4ERR_INVAL; |
|
4706 |
goto done; |
|
4707 |
} |
|
4708 |
} |
|
4709 |
||
4710 |
/* Check stateid only if size has been set */ |
|
4711 |
if (sarg.vap->va_mask & AT_SIZE) {
|
|
4712 |
trunc = (sarg.vap->va_size == 0); |
|
4713 |
status = rfs4_check_stateid(FWRITE, cs->vp, stateid, |
|
4714 |
trunc, &cs->deleg, sarg.vap->va_mask & AT_SIZE); |
|
4715 |
if (status != NFS4_OK) |
|
4716 |
goto done; |
|
4717 |
} |
|
4718 |
||
4719 |
ct.cc_sysid = 0; |
|
4720 |
ct.cc_pid = 0; |
|
4721 |
ct.cc_caller_id = nfs4_srv_caller_id; |
|
4722 |
||
4723 |
/* XXX start of possible race with delegations */ |
|
4724 |
||
4725 |
/* |
|
4726 |
* We need to specially handle size changes because it is |
|
4727 |
* possible for the client to create a file with read-only |
|
4728 |
* modes, but with the file opened for writing. If the client |
|
4729 |
* then tries to set the file size, e.g. ftruncate(3C), |
|
4730 |
* fcntl(F_FREESP), the normal access checking done in |
|
4731 |
* VOP_SETATTR would prevent the client from doing it even though |
|
4732 |
* it should be allowed to do so. To get around this, we do the |
|
4733 |
* access checking for ourselves and use VOP_SPACE which doesn't |
|
4734 |
* do the access checking. |
|
4735 |
* Also the client should not be allowed to change the file |
|
4736 |
* size if there is a conflicting non-blocking mandatory lock in |
|
4737 |
* the region of the change. |
|
4738 |
*/ |
|
4739 |
if (vp->v_type == VREG && (sarg.vap->va_mask & AT_SIZE)) {
|
|
4740 |
u_offset_t offset; |
|
4741 |
ssize_t length; |
|
4742 |
||
4743 |
/* |
|
|
602
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4744 |
* ufs_setattr clears AT_SIZE from vap->va_mask, but |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4745 |
* before returning, sarg.vap->va_mask is used to |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4746 |
* generate the setattr reply bitmap. We also clear |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4747 |
* AT_SIZE below before calling VOP_SPACE. For both |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4748 |
* of these cases, the va_mask needs to be saved here |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4749 |
* and restored after calling VOP_SETATTR. |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4750 |
*/ |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4751 |
saved_mask = sarg.vap->va_mask; |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4752 |
|
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4753 |
/* |
| 0 | 4754 |
* Check any possible conflict due to NBMAND locks. |
4755 |
* Get into critical region before VOP_GETATTR, so the |
|
4756 |
* size attribute is valid when checking conflicts. |
|
4757 |
*/ |
|
4758 |
if (nbl_need_check(vp)) {
|
|
4759 |
nbl_start_crit(vp, RW_READER); |
|
4760 |
in_crit = 1; |
|
4761 |
} |
|
4762 |
||
4763 |
bva.va_mask = AT_UID|AT_SIZE; |
|
4764 |
if (error = VOP_GETATTR(vp, &bva, 0, cr)) {
|
|
4765 |
status = puterrno4(error); |
|
4766 |
goto done; |
|
4767 |
} |
|
4768 |
||
4769 |
if (in_crit) {
|
|
4770 |
if (sarg.vap->va_size < bva.va_size) {
|
|
4771 |
offset = sarg.vap->va_size; |
|
4772 |
length = bva.va_size - sarg.vap->va_size; |
|
4773 |
} else {
|
|
4774 |
offset = bva.va_size; |
|
4775 |
length = sarg.vap->va_size - bva.va_size; |
|
4776 |
} |
|
4777 |
if (nbl_conflict(vp, NBL_WRITE, offset, length, 0)) {
|
|
4778 |
status = NFS4ERR_LOCKED; |
|
4779 |
goto done; |
|
4780 |
} |
|
4781 |
} |
|
4782 |
||
4783 |
if (crgetuid(cr) == bva.va_uid) {
|
|
4784 |
sarg.vap->va_mask &= ~AT_SIZE; |
|
4785 |
bf.l_type = F_WRLCK; |
|
4786 |
bf.l_whence = 0; |
|
4787 |
bf.l_start = (off64_t)sarg.vap->va_size; |
|
4788 |
bf.l_len = 0; |
|
4789 |
bf.l_sysid = 0; |
|
4790 |
bf.l_pid = 0; |
|
4791 |
error = VOP_SPACE(vp, F_FREESP, &bf, FWRITE, |
|
4792 |
(offset_t)sarg.vap->va_size, cr, &ct); |
|
4793 |
} |
|
4794 |
} |
|
4795 |
||
4796 |
if (!error && sarg.vap->va_mask != 0) |
|
4797 |
error = VOP_SETATTR(vp, sarg.vap, sarg.flag, cr, &ct); |
|
4798 |
||
|
602
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4799 |
/* restore va_mask -- ufs_setattr clears AT_SIZE */ |
| 0 | 4800 |
if (saved_mask & AT_SIZE) |
4801 |
sarg.vap->va_mask |= AT_SIZE; |
|
4802 |
||
4803 |
/* |
|
4804 |
* If an ACL was being set, it has been delayed until now, |
|
4805 |
* in order to set the mode (via the VOP_SETATTR() above) first. |
|
4806 |
*/ |
|
4807 |
if ((! error) && (fattrp->attrmask & FATTR4_ACL_MASK)) {
|
|
4808 |
int i; |
|
4809 |
||
4810 |
for (i = 0; i < NFS4_MAXNUM_ATTRS; i++) |
|
4811 |
if (ntov.amap[i] == FATTR4_ACL) |
|
4812 |
break; |
|
4813 |
if (i < NFS4_MAXNUM_ATTRS) {
|
|
4814 |
error = (*nfs4_ntov_map[FATTR4_ACL].sv_getit)( |
|
4815 |
NFS4ATTR_SETIT, &sarg, &ntov.na[i]); |
|
4816 |
if (error == 0) {
|
|
4817 |
*resp |= FATTR4_ACL_MASK; |
|
4818 |
} else if (error == ENOTSUP) {
|
|
4819 |
(void) rfs4_verify_attr(&sarg, resp, &ntov); |
|
4820 |
status = NFS4ERR_ATTRNOTSUPP; |
|
4821 |
goto done; |
|
4822 |
} |
|
4823 |
} else {
|
|
4824 |
NFS4_DEBUG(rfs4_debug, |
|
4825 |
(CE_NOTE, "do_rfs4_op_setattr: " |
|
4826 |
"unable to find ACL in fattr4")); |
|
4827 |
error = EINVAL; |
|
4828 |
} |
|
4829 |
} |
|
4830 |
||
4831 |
if (error) {
|
|
4832 |
status = puterrno4(error); |
|
4833 |
||
4834 |
/* |
|
4835 |
* Set the response bitmap when setattr failed. |
|
4836 |
* If VOP_SETATTR partially succeeded, test by doing a |
|
4837 |
* VOP_GETATTR on the object and comparing the data |
|
4838 |
* to the setattr arguments. |
|
4839 |
*/ |
|
4840 |
(void) rfs4_verify_attr(&sarg, resp, &ntov); |
|
4841 |
} else {
|
|
4842 |
/* |
|
4843 |
* Force modified metadata out to stable storage. |
|
4844 |
*/ |
|
4845 |
(void) VOP_FSYNC(vp, FNODSYNC, cr); |
|
4846 |
/* |
|
4847 |
* Set response bitmap |
|
4848 |
*/ |
|
|
602
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4849 |
nfs4_vmask_to_nmask_set(sarg.vap->va_mask, resp); |
| 0 | 4850 |
} |
4851 |
||
4852 |
/* Return early and already have a NFSv4 error */ |
|
4853 |
done: |
|
|
602
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4854 |
/* |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4855 |
* Except for nfs4_vmask_to_nmask_set(), vattr --> fattr |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4856 |
* conversion sets both readable and writeable NFS4 attrs |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4857 |
* for AT_MTIME and AT_ATIME. The line below masks out |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4858 |
* unrequested attrs from the setattr result bitmap. This |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4859 |
* is placed after the done: label to catch the ATTRNOTSUP |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4860 |
* case. |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4861 |
*/ |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4862 |
*resp &= fattrp->attrmask; |
|
4ef537c7acd0
6284687 SETATTR(size) with special stateid=0 does not have bitmask set
jasmith
parents:
254
diff
changeset
|
4863 |
|
| 0 | 4864 |
if (in_crit) |
4865 |
nbl_end_crit(vp); |
|
4866 |
||
4867 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
4868 |
||
4869 |
return (status); |
|
4870 |
} |
|
4871 |
||
4872 |
/* ARGSUSED */ |
|
4873 |
static void |
|
4874 |
rfs4_op_setattr(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
4875 |
struct compound_state *cs) |
|
4876 |
{
|
|
4877 |
SETATTR4args *args = &argop->nfs_argop4_u.opsetattr; |
|
4878 |
SETATTR4res *resp = &resop->nfs_resop4_u.opsetattr; |
|
| 1676 | 4879 |
bslabel_t *clabel; |
| 0 | 4880 |
|
4881 |
if (cs->vp == NULL) {
|
|
4882 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
4883 |
return; |
|
4884 |
} |
|
4885 |
||
4886 |
/* |
|
4887 |
* If there is an unshared filesystem mounted on this vnode, |
|
4888 |
* do not allow to setattr on this vnode. |
|
4889 |
*/ |
|
4890 |
if (vn_ismntpt(cs->vp)) {
|
|
4891 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
4892 |
return; |
|
4893 |
} |
|
4894 |
||
4895 |
resp->attrsset = 0; |
|
4896 |
||
4897 |
if (rdonly4(cs->exi, cs->vp, req)) {
|
|
4898 |
*cs->statusp = resp->status = NFS4ERR_ROFS; |
|
4899 |
return; |
|
4900 |
} |
|
4901 |
||
| 1676 | 4902 |
/* check label before setting attributes */ |
4903 |
if (is_system_labeled()) {
|
|
4904 |
ASSERT(req->rq_label != NULL); |
|
4905 |
clabel = req->rq_label; |
|
4906 |
DTRACE_PROBE2(tx__rfs4__log__info__opsetattr__clabel, char *, |
|
4907 |
"got client label from request(1)", |
|
4908 |
struct svc_req *, req); |
|
4909 |
if (!blequal(&l_admin_low->tsl_label, clabel)) {
|
|
4910 |
if (!do_rfs4_label_check(clabel, cs->vp, |
|
4911 |
EQUALITY_CHECK)) {
|
|
4912 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
4913 |
return; |
|
4914 |
} |
|
4915 |
} |
|
4916 |
} |
|
4917 |
||
| 0 | 4918 |
*cs->statusp = resp->status = |
4919 |
do_rfs4_op_setattr(&resp->attrsset, &args->obj_attributes, cs, |
|
4920 |
&args->stateid); |
|
4921 |
} |
|
4922 |
||
4923 |
/* ARGSUSED */ |
|
4924 |
static void |
|
4925 |
rfs4_op_verify(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
4926 |
struct compound_state *cs) |
|
4927 |
{
|
|
4928 |
/* |
|
4929 |
* verify and nverify are exactly the same, except that nverify |
|
4930 |
* succeeds when some argument changed, and verify succeeds when |
|
4931 |
* when none changed. |
|
4932 |
*/ |
|
4933 |
||
4934 |
VERIFY4args *args = &argop->nfs_argop4_u.opverify; |
|
4935 |
VERIFY4res *resp = &resop->nfs_resop4_u.opverify; |
|
4936 |
||
4937 |
int error; |
|
4938 |
struct nfs4_svgetit_arg sarg; |
|
4939 |
struct statvfs64 sb; |
|
4940 |
struct nfs4_ntov_table ntov; |
|
4941 |
||
4942 |
if (cs->vp == NULL) {
|
|
4943 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
4944 |
return; |
|
4945 |
} |
|
4946 |
||
4947 |
sarg.sbp = &sb; |
|
4948 |
nfs4_ntov_table_init(&ntov); |
|
4949 |
resp->status = do_rfs4_set_attrs(NULL, &args->obj_attributes, cs, |
|
4950 |
&sarg, &ntov, NFS4ATTR_VERIT); |
|
4951 |
if (resp->status != NFS4_OK) {
|
|
4952 |
/* |
|
4953 |
* do_rfs4_set_attrs will try to verify systemwide attrs, |
|
4954 |
* so could return -1 for "no match". |
|
4955 |
*/ |
|
4956 |
if (resp->status == -1) |
|
4957 |
resp->status = NFS4ERR_NOT_SAME; |
|
4958 |
goto done; |
|
4959 |
} |
|
4960 |
error = rfs4_verify_attr(&sarg, NULL, &ntov); |
|
4961 |
switch (error) {
|
|
4962 |
case 0: |
|
4963 |
resp->status = NFS4_OK; |
|
4964 |
break; |
|
4965 |
case -1: |
|
4966 |
resp->status = NFS4ERR_NOT_SAME; |
|
4967 |
break; |
|
4968 |
default: |
|
4969 |
resp->status = puterrno4(error); |
|
4970 |
break; |
|
4971 |
} |
|
4972 |
done: |
|
4973 |
*cs->statusp = resp->status; |
|
4974 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
4975 |
} |
|
4976 |
||
4977 |
/* ARGSUSED */ |
|
4978 |
static void |
|
4979 |
rfs4_op_nverify(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
4980 |
struct compound_state *cs) |
|
4981 |
{
|
|
4982 |
/* |
|
4983 |
* verify and nverify are exactly the same, except that nverify |
|
4984 |
* succeeds when some argument changed, and verify succeeds when |
|
4985 |
* when none changed. |
|
4986 |
*/ |
|
4987 |
||
4988 |
NVERIFY4args *args = &argop->nfs_argop4_u.opnverify; |
|
4989 |
NVERIFY4res *resp = &resop->nfs_resop4_u.opnverify; |
|
4990 |
||
4991 |
int error; |
|
4992 |
struct nfs4_svgetit_arg sarg; |
|
4993 |
struct statvfs64 sb; |
|
4994 |
struct nfs4_ntov_table ntov; |
|
4995 |
||
4996 |
if (cs->vp == NULL) {
|
|
4997 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
4998 |
return; |
|
4999 |
} |
|
5000 |
sarg.sbp = &sb; |
|
5001 |
nfs4_ntov_table_init(&ntov); |
|
5002 |
resp->status = do_rfs4_set_attrs(NULL, &args->obj_attributes, cs, |
|
5003 |
&sarg, &ntov, NFS4ATTR_VERIT); |
|
5004 |
if (resp->status != NFS4_OK) {
|
|
5005 |
/* |
|
5006 |
* do_rfs4_set_attrs will try to verify systemwide attrs, |
|
5007 |
* so could return -1 for "no match". |
|
5008 |
*/ |
|
5009 |
if (resp->status == -1) |
|
5010 |
resp->status = NFS4_OK; |
|
5011 |
goto done; |
|
5012 |
} |
|
5013 |
error = rfs4_verify_attr(&sarg, NULL, &ntov); |
|
5014 |
switch (error) {
|
|
5015 |
case 0: |
|
5016 |
resp->status = NFS4ERR_SAME; |
|
5017 |
break; |
|
5018 |
case -1: |
|
5019 |
resp->status = NFS4_OK; |
|
5020 |
break; |
|
5021 |
default: |
|
5022 |
resp->status = puterrno4(error); |
|
5023 |
break; |
|
5024 |
} |
|
5025 |
done: |
|
5026 |
*cs->statusp = resp->status; |
|
5027 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
5028 |
} |
|
5029 |
||
5030 |
/* |
|
5031 |
* XXX - This should live in an NFS header file. |
|
5032 |
*/ |
|
5033 |
#define MAX_IOVECS 12 |
|
5034 |
||
5035 |
/* ARGSUSED */ |
|
5036 |
static void |
|
5037 |
rfs4_op_write(nfs_argop4 *argop, nfs_resop4 *resop, struct svc_req *req, |
|
5038 |
struct compound_state *cs) |
|
5039 |
{
|
|
5040 |
WRITE4args *args = &argop->nfs_argop4_u.opwrite; |
|
5041 |
WRITE4res *resp = &resop->nfs_resop4_u.opwrite; |
|
5042 |
int error; |
|
5043 |
vnode_t *vp; |
|
5044 |
struct vattr bva; |
|
5045 |
u_offset_t rlimit; |
|
5046 |
struct uio uio; |
|
5047 |
struct iovec iov[MAX_IOVECS]; |
|
5048 |
struct iovec *iovp; |
|
5049 |
int iovcnt; |
|
5050 |
int ioflag; |
|
5051 |
cred_t *savecred, *cr; |
|
5052 |
bool_t *deleg = &cs->deleg; |
|
5053 |
nfsstat4 stat; |
|
5054 |
int in_crit = 0; |
|
5055 |
||
5056 |
vp = cs->vp; |
|
5057 |
if (vp == NULL) {
|
|
5058 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
5059 |
return; |
|
5060 |
} |
|
5061 |
if (cs->access == CS_ACCESS_DENIED) {
|
|
5062 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
5063 |
return; |
|
5064 |
} |
|
5065 |
||
5066 |
cr = cs->cr; |
|
5067 |
||
5068 |
/* |
|
5069 |
* We have to enter the critical region before calling VOP_RWLOCK |
|
5070 |
* to avoid a deadlock with ufs. |
|
5071 |
*/ |
|
5072 |
if (nbl_need_check(vp)) {
|
|
5073 |
nbl_start_crit(vp, RW_READER); |
|
5074 |
in_crit = 1; |
|
5075 |
if (nbl_conflict(vp, NBL_WRITE, |
|
5076 |
args->offset, args->data_len, 0)) {
|
|
5077 |
*cs->statusp = resp->status = NFS4ERR_LOCKED; |
|
5078 |
goto out; |
|
5079 |
} |
|
5080 |
} |
|
5081 |
||
5082 |
if ((stat = rfs4_check_stateid(FWRITE, vp, &args->stateid, FALSE, |
|
5083 |
deleg, TRUE)) != NFS4_OK) {
|
|
5084 |
*cs->statusp = resp->status = stat; |
|
5085 |
goto out; |
|
5086 |
} |
|
5087 |
||
5088 |
bva.va_mask = AT_MODE | AT_UID; |
|
5089 |
error = VOP_GETATTR(vp, &bva, 0, cr); |
|
5090 |
||
5091 |
/* |
|
5092 |
* If we can't get the attributes, then we can't do the |
|
5093 |
* right access checking. So, we'll fail the request. |
|
5094 |
*/ |
|
5095 |
if (error) {
|
|
5096 |
*cs->statusp = resp->status = puterrno4(error); |
|
5097 |
goto out; |
|
5098 |
} |
|
5099 |
||
5100 |
if (rdonly4(cs->exi, cs->vp, req)) {
|
|
5101 |
*cs->statusp = resp->status = NFS4ERR_ROFS; |
|
5102 |
goto out; |
|
5103 |
} |
|
5104 |
||
5105 |
if (vp->v_type != VREG) {
|
|
5106 |
*cs->statusp = resp->status = |
|
5107 |
((vp->v_type == VDIR) ? NFS4ERR_ISDIR : NFS4ERR_INVAL); |
|
5108 |
goto out; |
|
5109 |
} |
|
5110 |
||
5111 |
if (crgetuid(cr) != bva.va_uid && |
|
5112 |
(error = VOP_ACCESS(vp, VWRITE, 0, cr))) {
|
|
5113 |
*cs->statusp = resp->status = puterrno4(error); |
|
5114 |
goto out; |
|
5115 |
} |
|
5116 |
||
5117 |
if (MANDLOCK(vp, bva.va_mode)) {
|
|
5118 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
5119 |
goto out; |
|
5120 |
} |
|
5121 |
||
5122 |
if (args->data_len == 0) {
|
|
5123 |
*cs->statusp = resp->status = NFS4_OK; |
|
5124 |
resp->count = 0; |
|
5125 |
resp->committed = args->stable; |
|
5126 |
resp->writeverf = Write4verf; |
|
5127 |
goto out; |
|
5128 |
} |
|
5129 |
||
5130 |
if (args->mblk != NULL) {
|
|
5131 |
mblk_t *m; |
|
5132 |
uint_t bytes, round_len; |
|
5133 |
||
5134 |
iovcnt = 0; |
|
5135 |
bytes = 0; |
|
5136 |
round_len = roundup(args->data_len, BYTES_PER_XDR_UNIT); |
|
5137 |
for (m = args->mblk; |
|
5138 |
m != NULL && bytes < round_len; |
|
5139 |
m = m->b_cont) {
|
|
5140 |
iovcnt++; |
|
5141 |
bytes += MBLKL(m); |
|
5142 |
} |
|
5143 |
#ifdef DEBUG |
|
5144 |
/* should have ended on an mblk boundary */ |
|
5145 |
if (bytes != round_len) {
|
|
5146 |
printf("bytes=0x%x, round_len=0x%x, req len=0x%x\n",
|
|
5147 |
bytes, round_len, args->data_len); |
|
5148 |
printf("args=%p, args->mblk=%p, m=%p", (void *)args,
|
|
5149 |
(void *)args->mblk, (void *)m); |
|
5150 |
ASSERT(bytes == round_len); |
|
5151 |
} |
|
5152 |
#endif |
|
5153 |
if (iovcnt <= MAX_IOVECS) {
|
|
5154 |
iovp = iov; |
|
5155 |
} else {
|
|
5156 |
iovp = kmem_alloc(sizeof (*iovp) * iovcnt, KM_SLEEP); |
|
5157 |
} |
|
5158 |
mblk_to_iov(args->mblk, iovcnt, iovp); |
|
5159 |
} else {
|
|
5160 |
iovcnt = 1; |
|
5161 |
iovp = iov; |
|
5162 |
iovp->iov_base = args->data_val; |
|
5163 |
iovp->iov_len = args->data_len; |
|
5164 |
} |
|
5165 |
||
5166 |
uio.uio_iov = iovp; |
|
5167 |
uio.uio_iovcnt = iovcnt; |
|
5168 |
||
5169 |
uio.uio_segflg = UIO_SYSSPACE; |
|
5170 |
uio.uio_extflg = UIO_COPY_DEFAULT; |
|
5171 |
uio.uio_loffset = args->offset; |
|
5172 |
uio.uio_resid = args->data_len; |
|
5173 |
uio.uio_llimit = curproc->p_fsz_ctl; |
|
5174 |
rlimit = uio.uio_llimit - args->offset; |
|
5175 |
if (rlimit < (u_offset_t)uio.uio_resid) |
|
5176 |
uio.uio_resid = (int)rlimit; |
|
5177 |
||
5178 |
if (args->stable == UNSTABLE4) |
|
5179 |
ioflag = 0; |
|
5180 |
else if (args->stable == FILE_SYNC4) |
|
5181 |
ioflag = FSYNC; |
|
5182 |
else if (args->stable == DATA_SYNC4) |
|
5183 |
ioflag = FDSYNC; |
|
5184 |
else {
|
|
5185 |
if (iovp != iov) |
|
5186 |
kmem_free(iovp, sizeof (*iovp) * iovcnt); |
|
5187 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
5188 |
goto out; |
|
5189 |
} |
|
5190 |
||
5191 |
/* |
|
5192 |
* We're changing creds because VM may fault and we need |
|
5193 |
* the cred of the current thread to be used if quota |
|
5194 |
* checking is enabled. |
|
5195 |
*/ |
|
5196 |
savecred = curthread->t_cred; |
|
5197 |
curthread->t_cred = cr; |
|
5198 |
error = do_io(FWRITE, vp, &uio, ioflag, cr); |
|
5199 |
curthread->t_cred = savecred; |
|
5200 |
||
5201 |
if (iovp != iov) |
|
5202 |
kmem_free(iovp, sizeof (*iovp) * iovcnt); |
|
5203 |
||
5204 |
if (error) {
|
|
5205 |
*cs->statusp = resp->status = puterrno4(error); |
|
5206 |
goto out; |
|
5207 |
} |
|
5208 |
||
5209 |
*cs->statusp = resp->status = NFS4_OK; |
|
5210 |
resp->count = args->data_len - uio.uio_resid; |
|
5211 |
||
5212 |
if (ioflag == 0) |
|
5213 |
resp->committed = UNSTABLE4; |
|
5214 |
else |
|
5215 |
resp->committed = FILE_SYNC4; |
|
5216 |
||
5217 |
resp->writeverf = Write4verf; |
|
5218 |
||
5219 |
out: |
|
5220 |
if (in_crit) |
|
5221 |
nbl_end_crit(vp); |
|
5222 |
} |
|
5223 |
||
5224 |
||
5225 |
/* XXX put in a header file */ |
|
5226 |
extern int sec_svc_getcred(struct svc_req *, cred_t *, caddr_t *, int *); |
|
5227 |
||
5228 |
void |
|
5229 |
rfs4_compound(COMPOUND4args *args, COMPOUND4res *resp, struct exportinfo *exi, |
|
5230 |
struct svc_req *req, cred_t *cr) |
|
5231 |
{
|
|
5232 |
uint_t i; |
|
5233 |
struct compound_state cs; |
|
5234 |
||
5235 |
rfs4_init_compound_state(&cs); |
|
5236 |
/* |
|
5237 |
* Form a reply tag by copying over the reqeuest tag. |
|
5238 |
*/ |
|
5239 |
resp->tag.utf8string_val = |
|
5240 |
kmem_alloc(args->tag.utf8string_len, KM_SLEEP); |
|
5241 |
resp->tag.utf8string_len = args->tag.utf8string_len; |
|
5242 |
bcopy(args->tag.utf8string_val, resp->tag.utf8string_val, |
|
5243 |
resp->tag.utf8string_len); |
|
5244 |
||
5245 |
cs.statusp = &resp->status; |
|
5246 |
||
5247 |
/* |
|
5248 |
* XXX for now, minorversion should be zero |
|
5249 |
*/ |
|
5250 |
if (args->minorversion != NFS4_MINORVERSION) {
|
|
5251 |
resp->array_len = 0; |
|
5252 |
resp->array = NULL; |
|
5253 |
resp->status = NFS4ERR_MINOR_VERS_MISMATCH; |
|
5254 |
return; |
|
5255 |
} |
|
5256 |
||
5257 |
resp->array_len = args->array_len; |
|
5258 |
resp->array = kmem_zalloc(args->array_len * sizeof (nfs_resop4), |
|
5259 |
KM_SLEEP); |
|
5260 |
||
5261 |
ASSERT(exi == NULL); |
|
5262 |
ASSERT(cr == NULL); |
|
5263 |
||
5264 |
cr = crget(); |
|
5265 |
ASSERT(cr != NULL); |
|
5266 |
||
5267 |
if (sec_svc_getcred(req, cr, &cs.principal, &cs.nfsflavor) == 0) {
|
|
5268 |
crfree(cr); |
|
5269 |
return; |
|
5270 |
} |
|
5271 |
||
5272 |
cs.basecr = cr; |
|
5273 |
||
5274 |
cs.req = req; |
|
5275 |
||
5276 |
/* |
|
5277 |
* For now, NFS4 compound processing must be protected by |
|
5278 |
* exported_lock because it can access more than one exportinfo |
|
5279 |
* per compound and share/unshare can now change multiple |
|
5280 |
* exinfo structs. The NFS2/3 code only refs 1 exportinfo |
|
5281 |
* per proc (excluding public exinfo), and exi_count design |
|
5282 |
* is sufficient to protect concurrent execution of NFS2/3 |
|
5283 |
* ops along with unexport. This lock will be removed as |
|
5284 |
* part of the NFSv4 phase 2 namespace redesign work. |
|
5285 |
*/ |
|
5286 |
rw_enter(&exported_lock, RW_READER); |
|
5287 |
||
5288 |
/* |
|
5289 |
* If this is the first compound we've seen, we need to start all |
|
5290 |
* new instances' grace periods. |
|
5291 |
*/ |
|
5292 |
if (rfs4_seen_first_compound == 0) {
|
|
5293 |
rfs4_grace_start_new(); |
|
5294 |
/* |
|
5295 |
* This must be set after rfs4_grace_start_new(), otherwise |
|
5296 |
* another thread could proceed past here before the former |
|
5297 |
* is finished. |
|
5298 |
*/ |
|
5299 |
rfs4_seen_first_compound = 1; |
|
5300 |
} |
|
5301 |
||
5302 |
for (i = 0; i < args->array_len && cs.cont; i++) {
|
|
5303 |
nfs_argop4 *argop; |
|
5304 |
nfs_resop4 *resop; |
|
5305 |
uint_t op; |
|
5306 |
||
5307 |
argop = &args->array[i]; |
|
5308 |
resop = &resp->array[i]; |
|
5309 |
resop->resop = argop->argop; |
|
5310 |
op = (uint_t)resop->resop; |
|
5311 |
||
5312 |
if (op < rfsv4disp_cnt) {
|
|
5313 |
/* |
|
5314 |
* Count the individual ops here; NULL and COMPOUND |
|
5315 |
* are counted in common_dispatch() |
|
5316 |
*/ |
|
5317 |
rfsproccnt_v4_ptr[op].value.ui64++; |
|
5318 |
||
5319 |
NFS4_DEBUG(rfs4_debug > 1, |
|
5320 |
(CE_NOTE, "Executing %s", rfs4_op_string[op])); |
|
5321 |
(*rfsv4disptab[op].dis_proc)(argop, resop, req, &cs); |
|
5322 |
NFS4_DEBUG(rfs4_debug > 1, |
|
5323 |
(CE_NOTE, "%s returned %d", |
|
5324 |
rfs4_op_string[op], *cs.statusp)); |
|
5325 |
if (*cs.statusp != NFS4_OK) |
|
5326 |
cs.cont = FALSE; |
|
5327 |
} else {
|
|
5328 |
/* |
|
5329 |
* This is effectively dead code since XDR code |
|
5330 |
* will have already returned BADXDR if op doesn't |
|
5331 |
* decode to legal value. This only done for a |
|
5332 |
* day when XDR code doesn't verify v4 opcodes. |
|
5333 |
*/ |
|
5334 |
op = OP_ILLEGAL; |
|
5335 |
rfsproccnt_v4_ptr[OP_ILLEGAL_IDX].value.ui64++; |
|
5336 |
||
5337 |
rfs4_op_illegal(argop, resop, req, &cs); |
|
5338 |
cs.cont = FALSE; |
|
5339 |
} |
|
5340 |
||
5341 |
/* |
|
5342 |
* If not at last op, and if we are to stop, then |
|
5343 |
* compact the results array. |
|
5344 |
*/ |
|
5345 |
if ((i + 1) < args->array_len && !cs.cont) {
|
|
5346 |
nfs_resop4 *new_res = kmem_alloc( |
|
5347 |
(i+1) * sizeof (nfs_resop4), KM_SLEEP); |
|
5348 |
bcopy(resp->array, |
|
5349 |
new_res, (i+1) * sizeof (nfs_resop4)); |
|
5350 |
kmem_free(resp->array, |
|
5351 |
args->array_len * sizeof (nfs_resop4)); |
|
5352 |
||
5353 |
resp->array_len = i + 1; |
|
5354 |
resp->array = new_res; |
|
5355 |
} |
|
5356 |
} |
|
5357 |
||
5358 |
rw_exit(&exported_lock); |
|
5359 |
||
5360 |
if (cs.vp) |
|
5361 |
VN_RELE(cs.vp); |
|
5362 |
if (cs.saved_vp) |
|
5363 |
VN_RELE(cs.saved_vp); |
|
5364 |
if (cs.saved_fh.nfs_fh4_val) |
|
5365 |
kmem_free(cs.saved_fh.nfs_fh4_val, NFS4_FHSIZE); |
|
5366 |
||
5367 |
if (cs.basecr) |
|
5368 |
crfree(cs.basecr); |
|
5369 |
if (cs.cr) |
|
5370 |
crfree(cs.cr); |
|
| 1676 | 5371 |
/* |
5372 |
* done with this compound request, free the label |
|
5373 |
*/ |
|
5374 |
||
5375 |
if (req->rq_label != NULL) {
|
|
5376 |
kmem_free(req->rq_label, sizeof (bslabel_t)); |
|
5377 |
req->rq_label = NULL; |
|
5378 |
} |
|
| 0 | 5379 |
} |
5380 |
||
5381 |
/* |
|
5382 |
* XXX because of what appears to be duplicate calls to rfs4_compound_free |
|
5383 |
* XXX zero out the tag and array values. Need to investigate why the |
|
5384 |
* XXX calls occur, but at least prevent the panic for now. |
|
5385 |
*/ |
|
5386 |
void |
|
5387 |
rfs4_compound_free(COMPOUND4res *resp) |
|
5388 |
{
|
|
5389 |
uint_t i; |
|
5390 |
||
5391 |
if (resp->tag.utf8string_val) {
|
|
5392 |
UTF8STRING_FREE(resp->tag) |
|
5393 |
} |
|
5394 |
||
5395 |
for (i = 0; i < resp->array_len; i++) {
|
|
5396 |
nfs_resop4 *resop; |
|
5397 |
uint_t op; |
|
5398 |
||
5399 |
resop = &resp->array[i]; |
|
5400 |
op = (uint_t)resop->resop; |
|
5401 |
if (op < rfsv4disp_cnt) {
|
|
5402 |
(*rfsv4disptab[op].dis_resfree)(resop); |
|
5403 |
} |
|
5404 |
} |
|
5405 |
if (resp->array != NULL) {
|
|
5406 |
kmem_free(resp->array, resp->array_len * sizeof (nfs_resop4)); |
|
5407 |
} |
|
5408 |
} |
|
5409 |
||
5410 |
/* |
|
5411 |
* Process the value of the compound request rpc flags, as a bit-AND |
|
5412 |
* of the individual per-op flags (idempotent, allowork, publicfh_ok) |
|
5413 |
*/ |
|
5414 |
void |
|
5415 |
rfs4_compound_flagproc(COMPOUND4args *args, int *flagp) |
|
5416 |
{
|
|
5417 |
int i; |
|
5418 |
int flag = RPC_ALL; |
|
5419 |
||
5420 |
for (i = 0; flag && i < args->array_len; i++) {
|
|
5421 |
uint_t op; |
|
5422 |
||
5423 |
op = (uint_t)args->array[i].argop; |
|
5424 |
||
5425 |
if (op < rfsv4disp_cnt) |
|
5426 |
flag &= rfsv4disptab[op].dis_flags; |
|
5427 |
else |
|
5428 |
flag = 0; |
|
5429 |
} |
|
5430 |
*flagp = flag; |
|
5431 |
} |
|
5432 |
||
5433 |
nfsstat4 |
|
5434 |
rfs4_client_sysid(rfs4_client_t *cp, sysid_t *sp) |
|
5435 |
{
|
|
5436 |
nfsstat4 e; |
|
5437 |
||
5438 |
rfs4_dbe_lock(cp->dbe); |
|
5439 |
||
5440 |
if (cp->sysidt != LM_NOSYSID) {
|
|
5441 |
*sp = cp->sysidt; |
|
5442 |
e = NFS4_OK; |
|
5443 |
||
5444 |
} else if ((cp->sysidt = lm_alloc_sysidt()) != LM_NOSYSID) {
|
|
5445 |
*sp = cp->sysidt; |
|
5446 |
e = NFS4_OK; |
|
5447 |
||
5448 |
NFS4_DEBUG(rfs4_debug, (CE_NOTE, |
|
5449 |
"rfs4_client_sysid: allocated 0x%x\n", *sp)); |
|
5450 |
} else |
|
5451 |
e = NFS4ERR_DELAY; |
|
5452 |
||
5453 |
rfs4_dbe_unlock(cp->dbe); |
|
5454 |
return (e); |
|
5455 |
} |
|
5456 |
||
5457 |
#if defined(DEBUG) && ! defined(lint) |
|
5458 |
static void lock_print(char *str, int operation, struct flock64 *flk) |
|
5459 |
{
|
|
5460 |
char *op, *type; |
|
5461 |
||
5462 |
switch (operation) {
|
|
5463 |
case F_GETLK: op = "F_GETLK"; |
|
5464 |
break; |
|
5465 |
case F_SETLK: op = "F_SETLK"; |
|
5466 |
break; |
|
5467 |
default: op = "F_UNKNOWN"; |
|
5468 |
break; |
|
5469 |
} |
|
5470 |
switch (flk->l_type) {
|
|
5471 |
case F_UNLCK: type = "F_UNLCK"; |
|
5472 |
break; |
|
5473 |
case F_RDLCK: type = "F_RDLCK"; |
|
5474 |
break; |
|
5475 |
case F_WRLCK: type = "F_WRLCK"; |
|
5476 |
break; |
|
5477 |
default: type = "F_UNKNOWN"; |
|
5478 |
break; |
|
5479 |
} |
|
5480 |
||
5481 |
ASSERT(flk->l_whence == 0); |
|
5482 |
cmn_err(CE_NOTE, "%s: %s, type = %s, off = %llx len = %llx pid = %d", |
|
5483 |
str, op, type, |
|
5484 |
(longlong_t)flk->l_start, |
|
5485 |
flk->l_len ? (longlong_t)flk->l_len : ~0LL, |
|
5486 |
flk->l_pid); |
|
5487 |
} |
|
5488 |
||
5489 |
#define LOCK_PRINT(d, s, t, f) if (d) lock_print(s, t, f) |
|
5490 |
#else |
|
5491 |
#define LOCK_PRINT(d, s, t, f) |
|
5492 |
#endif |
|
5493 |
||
5494 |
/*ARGSUSED*/ |
|
5495 |
static bool_t |
|
5496 |
creds_ok(cred_set_t cr_set, struct svc_req *req, struct compound_state *cs) |
|
5497 |
{
|
|
5498 |
return (TRUE); |
|
5499 |
} |
|
5500 |
||
5501 |
/* |
|
5502 |
* Look up the pathname using the vp in cs as the directory vnode. |
|
5503 |
* cs->vp will be the vnode for the file on success |
|
5504 |
*/ |
|
5505 |
||
5506 |
static nfsstat4 |
|
5507 |
rfs4_lookup(component4 *component, struct svc_req *req, |
|
5508 |
struct compound_state *cs) |
|
5509 |
{
|
|
5510 |
char *nm; |
|
5511 |
uint32_t len; |
|
5512 |
nfsstat4 status; |
|
5513 |
||
5514 |
if (cs->vp == NULL) {
|
|
5515 |
return (NFS4ERR_NOFILEHANDLE); |
|
5516 |
} |
|
5517 |
if (cs->vp->v_type != VDIR) {
|
|
5518 |
return (NFS4ERR_NOTDIR); |
|
5519 |
} |
|
5520 |
||
5521 |
if (!utf8_dir_verify(component)) |
|
5522 |
return (NFS4ERR_INVAL); |
|
5523 |
||
5524 |
nm = utf8_to_fn(component, &len, NULL); |
|
5525 |
if (nm == NULL) {
|
|
5526 |
return (NFS4ERR_INVAL); |
|
5527 |
} |
|
5528 |
||
5529 |
if (len > MAXNAMELEN) {
|
|
5530 |
kmem_free(nm, len); |
|
5531 |
return (NFS4ERR_NAMETOOLONG); |
|
5532 |
} |
|
5533 |
||
5534 |
status = do_rfs4_op_lookup(nm, len, req, cs); |
|
5535 |
||
5536 |
kmem_free(nm, len); |
|
5537 |
||
5538 |
return (status); |
|
5539 |
} |
|
5540 |
||
5541 |
static nfsstat4 |
|
5542 |
rfs4_lookupfile(component4 *component, struct svc_req *req, |
|
5543 |
struct compound_state *cs, uint32_t access, |
|
5544 |
change_info4 *cinfo) |
|
5545 |
{
|
|
5546 |
nfsstat4 status; |
|
5547 |
vnode_t *dvp = cs->vp; |
|
5548 |
vattr_t bva, ava, fva; |
|
5549 |
int error; |
|
5550 |
||
5551 |
/* Get "before" change value */ |
|
5552 |
bva.va_mask = AT_CTIME|AT_SEQ; |
|
5553 |
error = VOP_GETATTR(dvp, &bva, 0, cs->cr); |
|
5554 |
if (error) |
|
5555 |
return (puterrno4(error)); |
|
5556 |
||
5557 |
/* rfs4_lookup may VN_RELE directory */ |
|
5558 |
VN_HOLD(dvp); |
|
5559 |
||
5560 |
status = rfs4_lookup(component, req, cs); |
|
5561 |
if (status != NFS4_OK) {
|
|
5562 |
VN_RELE(dvp); |
|
5563 |
return (status); |
|
5564 |
} |
|
5565 |
||
5566 |
/* |
|
5567 |
* Get "after" change value, if it fails, simply return the |
|
5568 |
* before value. |
|
5569 |
*/ |
|
5570 |
ava.va_mask = AT_CTIME|AT_SEQ; |
|
5571 |
if (VOP_GETATTR(dvp, &ava, 0, cs->cr)) {
|
|
5572 |
ava.va_ctime = bva.va_ctime; |
|
5573 |
ava.va_seq = 0; |
|
5574 |
} |
|
5575 |
VN_RELE(dvp); |
|
5576 |
||
5577 |
/* |
|
5578 |
* Validate the file is a file |
|
5579 |
*/ |
|
5580 |
fva.va_mask = AT_TYPE|AT_MODE; |
|
5581 |
error = VOP_GETATTR(cs->vp, &fva, 0, cs->cr); |
|
5582 |
if (error) |
|
5583 |
return (puterrno4(error)); |
|
5584 |
||
5585 |
if (fva.va_type != VREG) {
|
|
5586 |
if (fva.va_type == VDIR) |
|
5587 |
return (NFS4ERR_ISDIR); |
|
5588 |
if (fva.va_type == VLNK) |
|
5589 |
return (NFS4ERR_SYMLINK); |
|
5590 |
return (NFS4ERR_INVAL); |
|
5591 |
} |
|
5592 |
||
5593 |
NFS4_SET_FATTR4_CHANGE(cinfo->before, bva.va_ctime); |
|
5594 |
NFS4_SET_FATTR4_CHANGE(cinfo->after, ava.va_ctime); |
|
5595 |
||
5596 |
/* |
|
5597 |
* It is undefined if VOP_LOOKUP will change va_seq, so |
|
5598 |
* cinfo.atomic = TRUE only if we have |
|
5599 |
* non-zero va_seq's, and they have not changed. |
|
5600 |
*/ |
|
5601 |
if (bva.va_seq && ava.va_seq && ava.va_seq == bva.va_seq) |
|
5602 |
cinfo->atomic = TRUE; |
|
5603 |
else |
|
5604 |
cinfo->atomic = FALSE; |
|
5605 |
||
5606 |
/* Check for mandatory locking */ |
|
5607 |
cs->mandlock = MANDLOCK(cs->vp, fva.va_mode); |
|
5608 |
return (check_open_access(access, cs, req)); |
|
5609 |
} |
|
5610 |
||
5611 |
static nfsstat4 |
|
5612 |
create_vnode(vnode_t *dvp, char *nm, vattr_t *vap, createmode4 mode, |
|
5613 |
timespec32_t *mtime, cred_t *cr, vnode_t **vpp, bool_t *created) |
|
5614 |
{
|
|
5615 |
int error; |
|
5616 |
nfsstat4 status = NFS4_OK; |
|
5617 |
vattr_t va; |
|
5618 |
||
5619 |
tryagain: |
|
5620 |
||
5621 |
/* |
|
5622 |
* The file open mode used is VWRITE. If the client needs |
|
5623 |
* some other semantic, then it should do the access checking |
|
5624 |
* itself. It would have been nice to have the file open mode |
|
5625 |
* passed as part of the arguments. |
|
5626 |
*/ |
|
5627 |
||
5628 |
*created = TRUE; |
|
5629 |
error = VOP_CREATE(dvp, nm, vap, EXCL, VWRITE, vpp, cr, 0); |
|
5630 |
||
5631 |
if (error) {
|
|
5632 |
*created = FALSE; |
|
5633 |
||
5634 |
/* |
|
5635 |
* If we got something other than file already exists |
|
5636 |
* then just return this error. Otherwise, we got |
|
5637 |
* EEXIST. If we were doing a GUARDED create, then |
|
5638 |
* just return this error. Otherwise, we need to |
|
5639 |
* make sure that this wasn't a duplicate of an |
|
5640 |
* exclusive create request. |
|
5641 |
* |
|
5642 |
* The assumption is made that a non-exclusive create |
|
5643 |
* request will never return EEXIST. |
|
5644 |
*/ |
|
5645 |
||
5646 |
if (error != EEXIST || mode == GUARDED4) {
|
|
5647 |
status = puterrno4(error); |
|
5648 |
return (status); |
|
5649 |
} |
|
5650 |
error = VOP_LOOKUP(dvp, nm, vpp, NULL, 0, NULL, cr); |
|
5651 |
||
5652 |
if (error) {
|
|
5653 |
/* |
|
5654 |
* We couldn't find the file that we thought that |
|
5655 |
* we just created. So, we'll just try creating |
|
5656 |
* it again. |
|
5657 |
*/ |
|
5658 |
if (error == ENOENT) |
|
5659 |
goto tryagain; |
|
5660 |
||
5661 |
status = puterrno4(error); |
|
5662 |
return (status); |
|
5663 |
} |
|
5664 |
||
5665 |
if (mode == UNCHECKED4) {
|
|
5666 |
/* existing object must be regular file */ |
|
5667 |
if ((*vpp)->v_type != VREG) {
|
|
5668 |
if ((*vpp)->v_type == VDIR) |
|
5669 |
status = NFS4ERR_ISDIR; |
|
5670 |
else if ((*vpp)->v_type == VLNK) |
|
5671 |
status = NFS4ERR_SYMLINK; |
|
5672 |
else |
|
5673 |
status = NFS4ERR_INVAL; |
|
5674 |
VN_RELE(*vpp); |
|
5675 |
return (status); |
|
5676 |
} |
|
5677 |
||
5678 |
return (NFS4_OK); |
|
5679 |
} |
|
5680 |
||
5681 |
/* Check for duplicate request */ |
|
5682 |
ASSERT(mtime != 0); |
|
5683 |
va.va_mask = AT_MTIME; |
|
5684 |
error = VOP_GETATTR(*vpp, &va, 0, cr); |
|
5685 |
if (!error) {
|
|
5686 |
/* We found the file */ |
|
5687 |
if (va.va_mtime.tv_sec != mtime->tv_sec || |
|
5688 |
va.va_mtime.tv_nsec != mtime->tv_nsec) {
|
|
5689 |
/* but its not our creation */ |
|
5690 |
VN_RELE(*vpp); |
|
5691 |
return (NFS4ERR_EXIST); |
|
5692 |
} |
|
5693 |
*created = TRUE; /* retrans of create == created */ |
|
5694 |
return (NFS4_OK); |
|
5695 |
} |
|
5696 |
VN_RELE(*vpp); |
|
5697 |
return (NFS4ERR_EXIST); |
|
5698 |
} |
|
5699 |
||
5700 |
return (NFS4_OK); |
|
5701 |
} |
|
5702 |
||
5703 |
static nfsstat4 |
|
5704 |
check_open_access(uint32_t access, |
|
5705 |
struct compound_state *cs, struct svc_req *req) |
|
5706 |
{
|
|
5707 |
int error; |
|
5708 |
vnode_t *vp; |
|
5709 |
bool_t readonly; |
|
5710 |
cred_t *cr = cs->cr; |
|
5711 |
||
5712 |
/* For now we don't allow mandatory locking as per V2/V3 */ |
|
5713 |
if (cs->access == CS_ACCESS_DENIED || cs->mandlock) {
|
|
5714 |
return (NFS4ERR_ACCESS); |
|
5715 |
} |
|
5716 |
||
5717 |
vp = cs->vp; |
|
5718 |
ASSERT(cr != NULL && vp->v_type == VREG); |
|
5719 |
||
5720 |
/* |
|
5721 |
* If the file system is exported read only and we are trying |
|
5722 |
* to open for write, then return NFS4ERR_ROFS |
|
5723 |
*/ |
|
5724 |
||
5725 |
readonly = rdonly4(cs->exi, cs->vp, req); |
|
5726 |
||
5727 |
if ((access & OPEN4_SHARE_ACCESS_WRITE) && readonly) |
|
5728 |
return (NFS4ERR_ROFS); |
|
5729 |
||
5730 |
if (access & OPEN4_SHARE_ACCESS_READ) {
|
|
5731 |
if ((VOP_ACCESS(vp, VREAD, 0, cr) != 0) && |
|
5732 |
(VOP_ACCESS(vp, VEXEC, 0, cr) != 0)) {
|
|
5733 |
return (NFS4ERR_ACCESS); |
|
5734 |
} |
|
5735 |
} |
|
5736 |
||
5737 |
if (access & OPEN4_SHARE_ACCESS_WRITE) {
|
|
5738 |
error = VOP_ACCESS(vp, VWRITE, 0, cr); |
|
5739 |
if (error) |
|
5740 |
return (NFS4ERR_ACCESS); |
|
5741 |
} |
|
5742 |
||
5743 |
return (NFS4_OK); |
|
5744 |
} |
|
5745 |
||
5746 |
static nfsstat4 |
|
5747 |
rfs4_createfile(OPEN4args *args, struct svc_req *req, struct compound_state *cs, |
|
5748 |
change_info4 *cinfo, bitmap4 *attrset, clientid4 clientid) |
|
5749 |
{
|
|
5750 |
struct nfs4_svgetit_arg sarg; |
|
5751 |
struct nfs4_ntov_table ntov; |
|
5752 |
||
5753 |
bool_t ntov_table_init = FALSE; |
|
5754 |
struct statvfs64 sb; |
|
5755 |
nfsstat4 status; |
|
5756 |
vnode_t *vp; |
|
5757 |
vattr_t bva, ava, iva, cva, *vap; |
|
5758 |
vnode_t *dvp; |
|
5759 |
timespec32_t *mtime; |
|
5760 |
char *nm = NULL; |
|
5761 |
uint_t buflen; |
|
5762 |
bool_t created; |
|
5763 |
bool_t setsize = FALSE; |
|
5764 |
len_t reqsize; |
|
5765 |
int error; |
|
5766 |
bool_t trunc; |
|
5767 |
caller_context_t ct; |
|
5768 |
component4 *component; |
|
| 1676 | 5769 |
bslabel_t *clabel; |
| 0 | 5770 |
|
5771 |
sarg.sbp = &sb; |
|
5772 |
||
5773 |
dvp = cs->vp; |
|
5774 |
||
5775 |
/* Check if the file system is read only */ |
|
5776 |
if (rdonly4(cs->exi, dvp, req)) |
|
5777 |
return (NFS4ERR_ROFS); |
|
5778 |
||
| 1676 | 5779 |
/* check the label of including directory */ |
5780 |
if (is_system_labeled()) {
|
|
5781 |
ASSERT(req->rq_label != NULL); |
|
5782 |
clabel = req->rq_label; |
|
5783 |
DTRACE_PROBE2(tx__rfs4__log__info__opremove__clabel, char *, |
|
5784 |
"got client label from request(1)", |
|
5785 |
struct svc_req *, req); |
|
5786 |
if (!blequal(&l_admin_low->tsl_label, clabel)) {
|
|
5787 |
if (!do_rfs4_label_check(clabel, dvp, EQUALITY_CHECK)) {
|
|
5788 |
return (NFS4ERR_ACCESS); |
|
5789 |
} |
|
5790 |
} |
|
5791 |
} |
|
5792 |
||
| 0 | 5793 |
/* |
5794 |
* Get the last component of path name in nm. cs will reference |
|
5795 |
* the including directory on success. |
|
5796 |
*/ |
|
5797 |
component = &args->open_claim4_u.file; |
|
5798 |
if (!utf8_dir_verify(component)) |
|
5799 |
return (NFS4ERR_INVAL); |
|
5800 |
||
5801 |
nm = utf8_to_fn(component, &buflen, NULL); |
|
5802 |
||
5803 |
if (nm == NULL) |
|
5804 |
return (NFS4ERR_RESOURCE); |
|
5805 |
||
5806 |
if (buflen > MAXNAMELEN) {
|
|
5807 |
kmem_free(nm, buflen); |
|
5808 |
return (NFS4ERR_NAMETOOLONG); |
|
5809 |
} |
|
5810 |
||
5811 |
bva.va_mask = AT_TYPE|AT_CTIME|AT_SEQ; |
|
5812 |
error = VOP_GETATTR(dvp, &bva, 0, cs->cr); |
|
5813 |
if (error) {
|
|
5814 |
kmem_free(nm, buflen); |
|
5815 |
return (puterrno4(error)); |
|
5816 |
} |
|
5817 |
||
5818 |
if (bva.va_type != VDIR) {
|
|
5819 |
kmem_free(nm, buflen); |
|
5820 |
return (NFS4ERR_NOTDIR); |
|
5821 |
} |
|
5822 |
||
5823 |
NFS4_SET_FATTR4_CHANGE(cinfo->before, bva.va_ctime) |
|
5824 |
||
5825 |
switch (args->mode) {
|
|
5826 |
case GUARDED4: |
|
5827 |
/*FALLTHROUGH*/ |
|
5828 |
case UNCHECKED4: |
|
5829 |
nfs4_ntov_table_init(&ntov); |
|
5830 |
ntov_table_init = TRUE; |
|
5831 |
||
5832 |
*attrset = 0; |
|
5833 |
status = do_rfs4_set_attrs(attrset, |
|
5834 |
&args->createhow4_u.createattrs, |
|
5835 |
cs, &sarg, &ntov, NFS4ATTR_SETIT); |
|
5836 |
||
5837 |
if (status == NFS4_OK && (sarg.vap->va_mask & AT_TYPE) && |
|
5838 |
sarg.vap->va_type != VREG) {
|
|
5839 |
if (sarg.vap->va_type == VDIR) |
|
5840 |
status = NFS4ERR_ISDIR; |
|
5841 |
else if (sarg.vap->va_type == VLNK) |
|
5842 |
status = NFS4ERR_SYMLINK; |
|
5843 |
else |
|
5844 |
status = NFS4ERR_INVAL; |
|
5845 |
} |
|
5846 |
||
5847 |
if (status != NFS4_OK) {
|
|
5848 |
kmem_free(nm, buflen); |
|
5849 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
5850 |
*attrset = 0; |
|
5851 |
return (status); |
|
5852 |
} |
|
5853 |
||
5854 |
vap = sarg.vap; |
|
5855 |
vap->va_type = VREG; |
|
5856 |
vap->va_mask |= AT_TYPE; |
|
5857 |
||
5858 |
if ((vap->va_mask & AT_MODE) == 0) {
|
|
5859 |
vap->va_mask |= AT_MODE; |
|
5860 |
vap->va_mode = (mode_t)0600; |
|
5861 |
} |
|
5862 |
||
5863 |
if (vap->va_mask & AT_SIZE) {
|
|
5864 |
||
5865 |
/* Disallow create with a non-zero size */ |
|
5866 |
||
5867 |
if ((reqsize = sarg.vap->va_size) != 0) {
|
|
5868 |
kmem_free(nm, buflen); |
|
5869 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
5870 |
*attrset = 0; |
|
5871 |
return (NFS4ERR_INVAL); |
|
5872 |
} |
|
5873 |
setsize = TRUE; |
|
5874 |
} |
|
5875 |
break; |
|
5876 |
||
5877 |
case EXCLUSIVE4: |
|
5878 |
/* prohibit EXCL create of named attributes */ |
|
5879 |
if (dvp->v_flag & V_XATTRDIR) {
|
|
5880 |
kmem_free(nm, buflen); |
|
5881 |
*attrset = 0; |
|
5882 |
return (NFS4ERR_INVAL); |
|
5883 |
} |
|
5884 |
||
5885 |
cva.va_mask = AT_TYPE | AT_MTIME | AT_MODE; |
|
5886 |
cva.va_type = VREG; |
|
5887 |
/* |
|
5888 |
* Ensure no time overflows. Assumes underlying |
|
5889 |
* filesystem supports at least 32 bits. |
|
5890 |
* Truncate nsec to usec resolution to allow valid |
|
5891 |
* compares even if the underlying filesystem truncates. |
|
5892 |
*/ |
|
5893 |
mtime = (timespec32_t *)&args->createhow4_u.createverf; |
|
5894 |
cva.va_mtime.tv_sec = mtime->tv_sec % TIME32_MAX; |
|
5895 |
cva.va_mtime.tv_nsec = (mtime->tv_nsec / 1000) * 1000; |
|
5896 |
cva.va_mode = (mode_t)0; |
|
5897 |
vap = &cva; |
|
5898 |
break; |
|
5899 |
} |
|
5900 |
||
5901 |
status = create_vnode(dvp, nm, vap, args->mode, mtime, |
|
5902 |
cs->cr, &vp, &created); |
|
5903 |
kmem_free(nm, buflen); |
|
5904 |
||
5905 |
if (status != NFS4_OK) {
|
|
5906 |
if (ntov_table_init) |
|
5907 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
5908 |
*attrset = 0; |
|
5909 |
return (status); |
|
5910 |
} |
|
5911 |
||
5912 |
trunc = (setsize && !created); |
|
5913 |
||
5914 |
if (args->mode != EXCLUSIVE4) {
|
|
5915 |
bitmap4 createmask = args->createhow4_u.createattrs.attrmask; |
|
5916 |
||
5917 |
/* |
|
5918 |
* True verification that object was created with correct |
|
5919 |
* attrs is impossible. The attrs could have been changed |
|
5920 |
* immediately after object creation. If attributes did |
|
5921 |
* not verify, the only recourse for the server is to |
|
5922 |
* destroy the object. Maybe if some attrs (like gid) |
|
5923 |
* are set incorrectly, the object should be destroyed; |
|
5924 |
* however, seems bad as a default policy. Do we really |
|
5925 |
* want to destroy an object over one of the times not |
|
5926 |
* verifying correctly? For these reasons, the server |
|
5927 |
* currently sets bits in attrset for createattrs |
|
5928 |
* that were set; however, no verification is done. |
|
5929 |
* |
|
5930 |
* vmask_to_nmask accounts for vattr bits set on create |
|
5931 |
* [do_rfs4_set_attrs() only sets resp bits for |
|
5932 |
* non-vattr/vfs bits.] |
|
5933 |
* Mask off any bits we set by default so as not to return |
|
5934 |
* more attrset bits than were requested in createattrs |
|
5935 |
*/ |
|
5936 |
if (created) {
|
|
5937 |
nfs4_vmask_to_nmask(sarg.vap->va_mask, attrset); |
|
5938 |
*attrset &= createmask; |
|
5939 |
} else {
|
|
5940 |
/* |
|
5941 |
* We did not create the vnode (we tried but it |
|
5942 |
* already existed). In this case, the only createattr |
|
5943 |
* that the spec allows the server to set is size, |
|
5944 |
* and even then, it can only be set if it is 0. |
|
5945 |
*/ |
|
5946 |
*attrset = 0; |
|
5947 |
if (trunc) |
|
5948 |
*attrset = FATTR4_SIZE_MASK; |
|
5949 |
} |
|
5950 |
} |
|
5951 |
if (ntov_table_init) |
|
5952 |
nfs4_ntov_table_free(&ntov, &sarg); |
|
5953 |
||
5954 |
/* |
|
5955 |
* Get the initial "after" sequence number, if it fails, |
|
5956 |
* set to zero, time to before. |
|
5957 |
*/ |
|
5958 |
iva.va_mask = AT_CTIME|AT_SEQ; |
|
5959 |
if (VOP_GETATTR(dvp, &iva, 0, cs->cr)) {
|
|
5960 |
iva.va_seq = 0; |
|
5961 |
iva.va_ctime = bva.va_ctime; |
|
5962 |
} |
|
5963 |
||
5964 |
/* |
|
5965 |
* create_vnode attempts to create the file exclusive, |
|
5966 |
* if it already exists the VOP_CREATE will fail and |
|
5967 |
* may not increase va_seq. It is atomic if |
|
5968 |
* we haven't changed the directory, but if it has changed |
|
5969 |
* we don't know what changed it. |
|
5970 |
*/ |
|
5971 |
if (!created) {
|
|
5972 |
if (bva.va_seq && iva.va_seq && |
|
5973 |
bva.va_seq == iva.va_seq) |
|
5974 |
cinfo->atomic = TRUE; |
|
5975 |
else |
|
5976 |
cinfo->atomic = FALSE; |
|
5977 |
NFS4_SET_FATTR4_CHANGE(cinfo->after, iva.va_ctime); |
|
5978 |
} else {
|
|
5979 |
/* |
|
5980 |
* The entry was created, we need to sync the |
|
5981 |
* directory metadata. |
|
5982 |
*/ |
|
5983 |
(void) VOP_FSYNC(dvp, 0, cs->cr); |
|
5984 |
||
5985 |
/* |
|
5986 |
* Get "after" change value, if it fails, simply return the |
|
5987 |
* before value. |
|
5988 |
*/ |
|
5989 |
ava.va_mask = AT_CTIME|AT_SEQ; |
|
5990 |
if (VOP_GETATTR(dvp, &ava, 0, cs->cr)) {
|
|
5991 |
ava.va_ctime = bva.va_ctime; |
|
5992 |
ava.va_seq = 0; |
|
5993 |
} |
|
5994 |
||
5995 |
NFS4_SET_FATTR4_CHANGE(cinfo->after, ava.va_ctime); |
|
5996 |
||
5997 |
/* |
|
5998 |
* The cinfo->atomic = TRUE only if we have |
|
5999 |
* non-zero va_seq's, and it has incremented by exactly one |
|
6000 |
* during the create_vnode and it didn't |
|
6001 |
* change during the VOP_FSYNC. |
|
6002 |
*/ |
|
6003 |
if (bva.va_seq && iva.va_seq && ava.va_seq && |
|
6004 |
iva.va_seq == (bva.va_seq + 1) && |
|
6005 |
iva.va_seq == ava.va_seq) |
|
6006 |
cinfo->atomic = TRUE; |
|
6007 |
else |
|
6008 |
cinfo->atomic = FALSE; |
|
6009 |
} |
|
6010 |
||
6011 |
/* Check for mandatory locking and that the size gets set. */ |
|
6012 |
cva.va_mask = AT_MODE; |
|
6013 |
if (setsize) |
|
6014 |
cva.va_mask |= AT_SIZE; |
|
6015 |
||
6016 |
/* Assume the worst */ |
|
6017 |
cs->mandlock = TRUE; |
|
6018 |
||
6019 |
if (VOP_GETATTR(vp, &cva, 0, cs->cr) == 0) {
|
|
6020 |
cs->mandlock = MANDLOCK(cs->vp, cva.va_mode); |
|
6021 |
||
6022 |
/* |
|
6023 |
* Truncate the file if necessary; this would be |
|
6024 |
* the case for create over an existing file. |
|
6025 |
*/ |
|
6026 |
||
6027 |
if (trunc) {
|
|
6028 |
int in_crit = 0; |
|
6029 |
rfs4_file_t *fp; |
|
6030 |
bool_t create = FALSE; |
|
6031 |
||
6032 |
/* |
|
6033 |
* We are writing over an existing file. |
|
6034 |
* Check to see if we need to recall a delegation. |
|
6035 |
*/ |
|
6036 |
rfs4_hold_deleg_policy(); |
|
6037 |
if ((fp = rfs4_findfile(vp, NULL, &create)) != NULL) {
|
|
6038 |
if (rfs4_check_delegated_byfp(FWRITE, fp, |
|
6039 |
(reqsize == 0), FALSE, FALSE, |
|
6040 |
&clientid)) {
|
|
6041 |
||
6042 |
rfs4_file_rele(fp); |
|
6043 |
rfs4_rele_deleg_policy(); |
|
6044 |
VN_RELE(vp); |
|
6045 |
*attrset = 0; |
|
6046 |
return (NFS4ERR_DELAY); |
|
6047 |
} |
|
6048 |
rfs4_file_rele(fp); |
|
6049 |
} |
|
6050 |
rfs4_rele_deleg_policy(); |
|
6051 |
||
6052 |
if (nbl_need_check(vp)) {
|
|
6053 |
in_crit = 1; |
|
6054 |
||
6055 |
ASSERT(reqsize == 0); |
|
6056 |
||
6057 |
nbl_start_crit(vp, RW_READER); |
|
6058 |
if (nbl_conflict(vp, NBL_WRITE, 0, |
|
6059 |
cva.va_size, 0)) {
|
|
6060 |
in_crit = 0; |
|
6061 |
nbl_end_crit(vp); |
|
6062 |
VN_RELE(vp); |
|
6063 |
*attrset = 0; |
|
6064 |
return (NFS4ERR_ACCESS); |
|
6065 |
} |
|
6066 |
} |
|
6067 |
ct.cc_sysid = 0; |
|
6068 |
ct.cc_pid = 0; |
|
6069 |
ct.cc_caller_id = nfs4_srv_caller_id; |
|
6070 |
||
6071 |
cva.va_mask = AT_SIZE; |
|
6072 |
cva.va_size = reqsize; |
|
6073 |
(void) VOP_SETATTR(vp, &cva, 0, cs->cr, &ct); |
|
6074 |
if (in_crit) |
|
6075 |
nbl_end_crit(vp); |
|
6076 |
} |
|
6077 |
} |
|
6078 |
||
6079 |
error = makefh4(&cs->fh, vp, cs->exi); |
|
6080 |
||
6081 |
/* |
|
6082 |
* Force modified data and metadata out to stable storage. |
|
6083 |
*/ |
|
6084 |
(void) VOP_FSYNC(vp, FNODSYNC, cs->cr); |
|
6085 |
||
6086 |
if (error) {
|
|
6087 |
VN_RELE(vp); |
|
6088 |
*attrset = 0; |
|
6089 |
return (puterrno4(error)); |
|
6090 |
} |
|
6091 |
||
6092 |
/* if parent dir is attrdir, set namedattr fh flag */ |
|
6093 |
if (dvp->v_flag & V_XATTRDIR) |
|
6094 |
set_fh4_flag(&cs->fh, FH4_NAMEDATTR); |
|
6095 |
||
6096 |
if (cs->vp) |
|
6097 |
VN_RELE(cs->vp); |
|
6098 |
||
6099 |
cs->vp = vp; |
|
6100 |
||
6101 |
/* |
|
6102 |
* if we did not create the file, we will need to check |
|
6103 |
* the access bits on the file |
|
6104 |
*/ |
|
6105 |
||
6106 |
if (!created) {
|
|
6107 |
if (setsize) |
|
6108 |
args->share_access |= OPEN4_SHARE_ACCESS_WRITE; |
|
6109 |
status = check_open_access(args->share_access, cs, req); |
|
6110 |
if (status != NFS4_OK) |
|
6111 |
*attrset = 0; |
|
6112 |
} |
|
6113 |
return (status); |
|
6114 |
} |
|
6115 |
||
6116 |
/*ARGSUSED*/ |
|
6117 |
static void |
|
6118 |
rfs4_do_open(struct compound_state *cs, struct svc_req *req, |
|
6119 |
rfs4_openowner_t *oo, delegreq_t deleg, |
|
6120 |
uint32_t access, uint32_t deny, |
|
6121 |
OPEN4res *resp) |
|
6122 |
{
|
|
6123 |
/* XXX Currently not using req */ |
|
6124 |
rfs4_state_t *state; |
|
6125 |
rfs4_file_t *file; |
|
6126 |
bool_t screate = TRUE; |
|
6127 |
bool_t fcreate = TRUE; |
|
6128 |
uint32_t amodes; |
|
6129 |
uint32_t dmodes; |
|
6130 |
rfs4_deleg_state_t *dsp; |
|
6131 |
struct shrlock shr; |
|
6132 |
struct shr_locowner shr_loco; |
|
6133 |
sysid_t sysid; |
|
6134 |
nfsstat4 status; |
|
6135 |
int fflags = 0; |
|
6136 |
int recall = 0; |
|
6137 |
int err; |
|
6138 |
||
6139 |
/* get the file struct and hold a lock on it during initial open */ |
|
6140 |
file = rfs4_findfile_withlock(cs->vp, &cs->fh, &fcreate); |
|
6141 |
if (file == NULL) {
|
|
6142 |
NFS4_DEBUG(rfs4_debug, |
|
6143 |
(CE_NOTE, "rfs4_do_open: can't find file")); |
|
6144 |
resp->status = NFS4ERR_SERVERFAULT; |
|
6145 |
return; |
|
6146 |
} |
|
6147 |
||
6148 |
state = rfs4_findstate_by_owner_file(oo, file, &screate); |
|
6149 |
if (state == NULL) {
|
|
6150 |
NFS4_DEBUG(rfs4_debug, |
|
6151 |
(CE_NOTE, "rfs4_do_open: can't find state")); |
|
6152 |
resp->status = NFS4ERR_RESOURCE; |
|
6153 |
/* No need to keep any reference */ |
|
6154 |
rfs4_file_rele_withunlock(file); |
|
6155 |
return; |
|
6156 |
} |
|
6157 |
||
6158 |
/* |
|
6159 |
* Check for conflicts in deny and access before checking for |
|
6160 |
* conflicts in delegation. We don't want to recall a |
|
6161 |
* delegation based on an open that will eventually fail based |
|
6162 |
* on shares modes. |
|
6163 |
*/ |
|
6164 |
||
6165 |
shr.s_access = (short)access; |
|
6166 |
shr.s_deny = (short)deny; |
|
6167 |
shr.s_pid = rfs4_dbe_getid(oo->dbe); |
|
6168 |
||
6169 |
if ((status = rfs4_client_sysid(oo->client, &sysid)) != NFS4_OK) {
|
|
6170 |
resp->status = status; |
|
6171 |
rfs4_file_rele(file); |
|
6172 |
/* Not a fully formed open; "close" it */ |
|
6173 |
if (screate == TRUE) |
|
6174 |
rfs4_state_close(state, FALSE, FALSE, cs->cr); |
|
6175 |
rfs4_state_rele(state); |
|
6176 |
return; |
|
6177 |
} |
|
6178 |
shr.s_sysid = sysid; |
|
6179 |
shr_loco.sl_pid = shr.s_pid; |
|
6180 |
shr_loco.sl_id = shr.s_sysid; |
|
6181 |
shr.s_owner = (caddr_t)&shr_loco; |
|
6182 |
shr.s_own_len = sizeof (shr_loco); |
|
6183 |
||
6184 |
fflags = 0; |
|
6185 |
if (access & OPEN4_SHARE_ACCESS_READ) |
|
6186 |
fflags |= FREAD; |
|
6187 |
if (access & OPEN4_SHARE_ACCESS_WRITE) |
|
6188 |
fflags |= FWRITE; |
|
6189 |
||
6190 |
if ((err = vop_shrlock(cs->vp, F_SHARE, &shr, fflags)) != 0) {
|
|
6191 |
||
6192 |
resp->status = err == EAGAIN ? |
|
6193 |
NFS4ERR_SHARE_DENIED : puterrno4(err); |
|
6194 |
||
6195 |
rfs4_file_rele(file); |
|
6196 |
/* Not a fully formed open; "close" it */ |
|
6197 |
if (screate == TRUE) |
|
6198 |
rfs4_state_close(state, FALSE, FALSE, cs->cr); |
|
6199 |
rfs4_state_rele(state); |
|
6200 |
return; |
|
6201 |
} |
|
6202 |
||
6203 |
rfs4_dbe_lock(state->dbe); |
|
6204 |
rfs4_dbe_lock(file->dbe); |
|
6205 |
||
6206 |
/* |
|
6207 |
* Calculate the new deny and access mode that this open is adding to |
|
6208 |
* the file for this open owner; |
|
6209 |
*/ |
|
6210 |
dmodes = (deny & ~state->share_deny); |
|
6211 |
amodes = (access & ~state->share_access); |
|
6212 |
||
6213 |
/* |
|
6214 |
* Check to see if this file is delegated and if so, if a |
|
6215 |
* recall needs to be done. |
|
6216 |
*/ |
|
6217 |
if (rfs4_check_recall(state, access)) {
|
|
6218 |
rfs4_dbe_unlock(file->dbe); |
|
6219 |
rfs4_dbe_unlock(state->dbe); |
|
6220 |
rfs4_recall_deleg(file, FALSE, state->owner->client); |
|
6221 |
delay(NFS4_DELEGATION_CONFLICT_DELAY); |
|
6222 |
rfs4_dbe_lock(state->dbe); |
|
6223 |
rfs4_dbe_lock(file->dbe); |
|
6224 |
/* Let's see if the delegation was returned */ |
|
6225 |
if (rfs4_check_recall(state, access)) {
|
|
6226 |
rfs4_dbe_unlock(file->dbe); |
|
6227 |
rfs4_dbe_unlock(state->dbe); |
|
6228 |
rfs4_file_rele(file); |
|
6229 |
rfs4_update_lease(state->owner->client); |
|
6230 |
/* recalculate flags to match what was added */ |
|
6231 |
fflags = 0; |
|
6232 |
if (amodes & OPEN4_SHARE_ACCESS_READ) |
|
6233 |
fflags |= FREAD; |
|
6234 |
if (amodes & OPEN4_SHARE_ACCESS_WRITE) |
|
6235 |
fflags |= FWRITE; |
|
6236 |
(void) vop_shrlock(cs->vp, F_UNSHARE, &shr, fflags); |
|
6237 |
/* Not a fully formed open; "close" it */ |
|
6238 |
if (screate == TRUE) |
|
6239 |
rfs4_state_close(state, FALSE, FALSE, cs->cr); |
|
6240 |
rfs4_state_rele(state); |
|
6241 |
resp->status = NFS4ERR_DELAY; |
|
6242 |
return; |
|
6243 |
} |
|
6244 |
} |
|
6245 |
||
6246 |
if (dmodes & OPEN4_SHARE_DENY_READ) |
|
6247 |
file->deny_read++; |
|
6248 |
if (dmodes & OPEN4_SHARE_DENY_WRITE) |
|
6249 |
file->deny_write++; |
|
6250 |
file->share_deny |= deny; |
|
6251 |
state->share_deny |= deny; |
|
6252 |
||
6253 |
if (amodes & OPEN4_SHARE_ACCESS_READ) |
|
6254 |
file->access_read++; |
|
6255 |
if (amodes & OPEN4_SHARE_ACCESS_WRITE) |
|
6256 |
file->access_write++; |
|
6257 |
file->share_access |= access; |
|
6258 |
state->share_access |= access; |
|
6259 |
||
6260 |
/* |
|
6261 |
* Check for delegation here. if the deleg argument is not |
|
6262 |
* DELEG_ANY, then this is a reclaim from a client and |
|
6263 |
* we must honor the delegation requested. If necessary we can |
|
6264 |
* set the recall flag. |
|
6265 |
*/ |
|
6266 |
||
6267 |
dsp = rfs4_grant_delegation(deleg, state, &recall); |
|
6268 |
||
6269 |
cs->deleg = (file->dinfo->dtype == OPEN_DELEGATE_WRITE); |
|
6270 |
||
6271 |
next_stateid(&state->stateid); |
|
6272 |
||
6273 |
resp->stateid = state->stateid.stateid; |
|
6274 |
||
6275 |
rfs4_dbe_unlock(file->dbe); |
|
6276 |
rfs4_dbe_unlock(state->dbe); |
|
6277 |
||
6278 |
if (dsp) {
|
|
6279 |
rfs4_set_deleg_response(dsp, &resp->delegation, NULL, recall); |
|
6280 |
rfs4_deleg_state_rele(dsp); |
|
6281 |
} |
|
6282 |
||
6283 |
rfs4_file_rele(file); |
|
6284 |
rfs4_state_rele(state); |
|
6285 |
||
6286 |
resp->status = NFS4_OK; |
|
6287 |
} |
|
6288 |
||
6289 |
/*ARGSUSED*/ |
|
6290 |
static void |
|
6291 |
rfs4_do_opennull(struct compound_state *cs, struct svc_req *req, |
|
6292 |
OPEN4args *args, rfs4_openowner_t *oo, OPEN4res *resp) |
|
6293 |
{
|
|
6294 |
change_info4 *cinfo = &resp->cinfo; |
|
6295 |
bitmap4 *attrset = &resp->attrset; |
|
6296 |
||
6297 |
if (args->opentype == OPEN4_NOCREATE) |
|
6298 |
resp->status = rfs4_lookupfile(&args->open_claim4_u.file, |
|
6299 |
req, cs, args->share_access, cinfo); |
|
6300 |
else {
|
|
6301 |
/* inhibit delegation grants during exclusive create */ |
|
6302 |
||
6303 |
if (args->mode == EXCLUSIVE4) |
|
6304 |
rfs4_disable_delegation(); |
|
6305 |
||
6306 |
resp->status = rfs4_createfile(args, req, cs, cinfo, attrset, |
|
6307 |
oo->client->clientid); |
|
6308 |
} |
|
6309 |
||
6310 |
if (resp->status == NFS4_OK) {
|
|
6311 |
||
6312 |
/* cs->vp cs->fh now reference the desired file */ |
|
6313 |
||
6314 |
rfs4_do_open(cs, req, oo, DELEG_ANY, args->share_access, |
|
6315 |
args->share_deny, resp); |
|
6316 |
||
6317 |
/* |
|
6318 |
* If rfs4_createfile set attrset, we must |
|
6319 |
* clear this attrset before the response is copied. |
|
6320 |
*/ |
|
6321 |
if (resp->status != NFS4_OK && resp->attrset) {
|
|
6322 |
resp->attrset = 0; |
|
6323 |
} |
|
6324 |
} |
|
6325 |
else |
|
6326 |
*cs->statusp = resp->status; |
|
6327 |
||
6328 |
if (args->mode == EXCLUSIVE4) |
|
6329 |
rfs4_enable_delegation(); |
|
6330 |
} |
|
6331 |
||
6332 |
/*ARGSUSED*/ |
|
6333 |
static void |
|
6334 |
rfs4_do_openprev(struct compound_state *cs, struct svc_req *req, |
|
6335 |
OPEN4args *args, rfs4_openowner_t *oo, OPEN4res *resp) |
|
6336 |
{
|
|
6337 |
change_info4 *cinfo = &resp->cinfo; |
|
6338 |
vattr_t va; |
|
6339 |
vtype_t v_type = cs->vp->v_type; |
|
6340 |
int error = 0; |
|
6341 |
||
6342 |
/* Verify that we have a regular file */ |
|
6343 |
if (v_type != VREG) {
|
|
6344 |
if (v_type == VDIR) |
|
6345 |
resp->status = NFS4ERR_ISDIR; |
|
6346 |
else if (v_type == VLNK) |
|
6347 |
resp->status = NFS4ERR_SYMLINK; |
|
6348 |
else |
|
6349 |
resp->status = NFS4ERR_INVAL; |
|
6350 |
return; |
|
6351 |
} |
|
6352 |
||
6353 |
va.va_mask = AT_MODE|AT_UID; |
|
6354 |
error = VOP_GETATTR(cs->vp, &va, 0, cs->cr); |
|
6355 |
if (error) {
|
|
6356 |
resp->status = puterrno4(error); |
|
6357 |
return; |
|
6358 |
} |
|
6359 |
||
6360 |
cs->mandlock = MANDLOCK(cs->vp, va.va_mode); |
|
6361 |
||
6362 |
/* |
|
6363 |
* Check if we have access to the file, Note the the file |
|
6364 |
* could have originally been open UNCHECKED or GUARDED |
|
6365 |
* with mode bits that will now fail, but there is nothing |
|
6366 |
* we can really do about that except in the case that the |
|
6367 |
* owner of the file is the one requesting the open. |
|
6368 |
*/ |
|
6369 |
if (crgetuid(cs->cr) != va.va_uid) {
|
|
6370 |
resp->status = check_open_access(args->share_access, cs, req); |
|
6371 |
if (resp->status != NFS4_OK) {
|
|
6372 |
return; |
|
6373 |
} |
|
6374 |
} |
|
6375 |
||
6376 |
/* |
|
6377 |
* cinfo on a CLAIM_PREVIOUS is undefined, initialize to zero |
|
6378 |
*/ |
|
6379 |
cinfo->before = 0; |
|
6380 |
cinfo->after = 0; |
|
6381 |
cinfo->atomic = FALSE; |
|
6382 |
||
6383 |
rfs4_do_open(cs, req, oo, |
|
6384 |
NFS4_DELEG4TYPE2REQTYPE(args->open_claim4_u.delegate_type), |
|
6385 |
args->share_access, args->share_deny, resp); |
|
6386 |
} |
|
6387 |
||
6388 |
static void |
|
6389 |
rfs4_do_opendelcur(struct compound_state *cs, struct svc_req *req, |
|
6390 |
OPEN4args *args, rfs4_openowner_t *oo, OPEN4res *resp) |
|
6391 |
{
|
|
6392 |
int error; |
|
6393 |
nfsstat4 status; |
|
6394 |
stateid4 stateid = |
|
6395 |
args->open_claim4_u.delegate_cur_info.delegate_stateid; |
|
6396 |
rfs4_deleg_state_t *dsp; |
|
6397 |
||
6398 |
/* |
|
6399 |
* Find the state info from the stateid and confirm that the |
|
6400 |
* file is delegated. If the state openowner is the same as |
|
6401 |
* the supplied openowner we're done. If not, get the file |
|
6402 |
* info from the found state info. Use that file info to |
|
6403 |
* create the state for this lock owner. Note solaris doen't |
|
6404 |
* really need the pathname to find the file. We may want to |
|
6405 |
* lookup the pathname and make sure that the vp exist and |
|
6406 |
* matches the vp in the file structure. However it is |
|
6407 |
* possible that the pathname nolonger exists (local process |
|
6408 |
* unlinks the file), so this may not be that useful. |
|
6409 |
*/ |
|
6410 |
||
6411 |
status = rfs4_get_deleg_state(&stateid, &dsp); |
|
6412 |
if (status != NFS4_OK) {
|
|
6413 |
resp->status = status; |
|
6414 |
return; |
|
6415 |
} |
|
6416 |
||
6417 |
ASSERT(dsp->finfo->dinfo->dtype != OPEN_DELEGATE_NONE); |
|
6418 |
||
6419 |
/* |
|
6420 |
* New lock owner, create state. Since this was probably called |
|
6421 |
* in response to a CB_RECALL we set deleg to DELEG_NONE |
|
6422 |
*/ |
|
6423 |
||
6424 |
ASSERT(cs->vp != NULL); |
|
6425 |
VN_RELE(cs->vp); |
|
6426 |
VN_HOLD(dsp->finfo->vp); |
|
6427 |
cs->vp = dsp->finfo->vp; |
|
6428 |
||
6429 |
if (error = makefh4(&cs->fh, cs->vp, cs->exi)) {
|
|
6430 |
rfs4_deleg_state_rele(dsp); |
|
6431 |
*cs->statusp = resp->status = puterrno4(error); |
|
6432 |
return; |
|
6433 |
} |
|
6434 |
||
6435 |
/* Mark progress for delegation returns */ |
|
6436 |
dsp->finfo->dinfo->time_lastwrite = gethrestime_sec(); |
|
6437 |
rfs4_deleg_state_rele(dsp); |
|
6438 |
rfs4_do_open(cs, req, oo, DELEG_NONE, |
|
6439 |
args->share_access, args->share_deny, resp); |
|
6440 |
} |
|
6441 |
||
6442 |
/*ARGSUSED*/ |
|
6443 |
static void |
|
6444 |
rfs4_do_opendelprev(struct compound_state *cs, struct svc_req *req, |
|
6445 |
OPEN4args *args, rfs4_openowner_t *oo, OPEN4res *resp) |
|
6446 |
{
|
|
6447 |
/* |
|
6448 |
* Lookup the pathname, it must already exist since this file |
|
6449 |
* was delegated. |
|
6450 |
* |
|
6451 |
* Find the file and state info for this vp and open owner pair. |
|
6452 |
* check that they are in fact delegated. |
|
6453 |
* check that the state access and deny modes are the same. |
|
6454 |
* |
|
6455 |
* Return the delgation possibly seting the recall flag. |
|
6456 |
*/ |
|
6457 |
rfs4_file_t *file; |
|
6458 |
rfs4_state_t *state; |
|
6459 |
bool_t create = FALSE; |
|
6460 |
bool_t dcreate = FALSE; |
|
6461 |
rfs4_deleg_state_t *dsp; |
|
6462 |
nfsace4 *ace; |
|
6463 |
||
6464 |
||
6465 |
/* Note we ignore oflags */ |
|
6466 |
resp->status = rfs4_lookupfile(&args->open_claim4_u.file_delegate_prev, |
|
6467 |
req, cs, args->share_access, &resp->cinfo); |
|
6468 |
||
6469 |
if (resp->status != NFS4_OK) {
|
|
6470 |
return; |
|
6471 |
} |
|
6472 |
||
6473 |
/* get the file struct and hold a lock on it during initial open */ |
|
6474 |
file = rfs4_findfile_withlock(cs->vp, NULL, &create); |
|
6475 |
if (file == NULL) {
|
|
6476 |
NFS4_DEBUG(rfs4_debug, |
|
6477 |
(CE_NOTE, "rfs4_do_opendelprev: can't find file")); |
|
6478 |
resp->status = NFS4ERR_SERVERFAULT; |
|
6479 |
return; |
|
6480 |
} |
|
6481 |
||
6482 |
state = rfs4_findstate_by_owner_file(oo, file, &create); |
|
6483 |
if (state == NULL) {
|
|
6484 |
NFS4_DEBUG(rfs4_debug, |
|
6485 |
(CE_NOTE, "rfs4_do_opendelprev: can't find state")); |
|
6486 |
resp->status = NFS4ERR_SERVERFAULT; |
|
6487 |
rfs4_file_rele_withunlock(file); |
|
6488 |
return; |
|
6489 |
} |
|
6490 |
||
6491 |
rfs4_dbe_lock(state->dbe); |
|
6492 |
rfs4_dbe_lock(file->dbe); |
|
6493 |
if (args->share_access != state->share_access || |
|
6494 |
args->share_deny != state->share_deny || |
|
6495 |
state->finfo->dinfo->dtype == OPEN_DELEGATE_NONE) {
|
|
6496 |
NFS4_DEBUG(rfs4_debug, |
|
6497 |
(CE_NOTE, "rfs4_do_opendelprev: state mixup")); |
|
6498 |
rfs4_dbe_unlock(file->dbe); |
|
6499 |
rfs4_dbe_unlock(state->dbe); |
|
6500 |
rfs4_file_rele(file); |
|
6501 |
rfs4_state_rele(state); |
|
6502 |
resp->status = NFS4ERR_SERVERFAULT; |
|
6503 |
return; |
|
6504 |
} |
|
6505 |
rfs4_dbe_unlock(file->dbe); |
|
6506 |
rfs4_dbe_unlock(state->dbe); |
|
6507 |
||
6508 |
dsp = rfs4_finddeleg(state, &dcreate); |
|
6509 |
if (dsp == NULL) {
|
|
6510 |
rfs4_state_rele(state); |
|
6511 |
rfs4_file_rele(file); |
|
6512 |
resp->status = NFS4ERR_SERVERFAULT; |
|
6513 |
return; |
|
6514 |
} |
|
6515 |
||
6516 |
next_stateid(&state->stateid); |
|
6517 |
||
6518 |
resp->stateid = state->stateid.stateid; |
|
6519 |
||
6520 |
resp->delegation.delegation_type = dsp->dtype; |
|
6521 |
||
6522 |
if (dsp->dtype == OPEN_DELEGATE_READ) {
|
|
6523 |
open_read_delegation4 *rv = |
|
6524 |
&resp->delegation.open_delegation4_u.read; |
|
6525 |
||
6526 |
rv->stateid = dsp->delegid.stateid; |
|
6527 |
rv->recall = FALSE; /* no policy in place to set to TRUE */ |
|
6528 |
ace = &rv->permissions; |
|
6529 |
} else {
|
|
6530 |
open_write_delegation4 *rv = |
|
6531 |
&resp->delegation.open_delegation4_u.write; |
|
6532 |
||
6533 |
rv->stateid = dsp->delegid.stateid; |
|
6534 |
rv->recall = FALSE; /* no policy in place to set to TRUE */ |
|
6535 |
ace = &rv->permissions; |
|
6536 |
rv->space_limit.limitby = NFS_LIMIT_SIZE; |
|
6537 |
rv->space_limit.nfs_space_limit4_u.filesize = UINT64_MAX; |
|
6538 |
} |
|
6539 |
||
6540 |
/* XXX For now */ |
|
6541 |
ace->type = ACE4_ACCESS_ALLOWED_ACE_TYPE; |
|
6542 |
ace->flag = 0; |
|
6543 |
ace->access_mask = 0; |
|
6544 |
ace->who.utf8string_len = 0; |
|
6545 |
ace->who.utf8string_val = 0; |
|
6546 |
||
6547 |
rfs4_deleg_state_rele(dsp); |
|
6548 |
rfs4_state_rele(state); |
|
6549 |
rfs4_file_rele(file); |
|
6550 |
} |
|
6551 |
||
6552 |
typedef enum {
|
|
6553 |
NFS4_CHKSEQ_OKAY = 0, |
|
6554 |
NFS4_CHKSEQ_REPLAY = 1, |
|
6555 |
NFS4_CHKSEQ_BAD = 2 |
|
6556 |
} rfs4_chkseq_t; |
|
6557 |
||
6558 |
/* |
|
6559 |
* Generic function for sequence number checks. |
|
6560 |
*/ |
|
6561 |
static rfs4_chkseq_t |
|
6562 |
rfs4_check_seqid(seqid4 seqid, nfs_resop4 *lastop, |
|
6563 |
seqid4 rqst_seq, nfs_resop4 *resop, bool_t copyres) |
|
6564 |
{
|
|
6565 |
/* Same sequence ids and matching operations? */ |
|
6566 |
if (seqid == rqst_seq && resop->resop == lastop->resop) {
|
|
6567 |
if (copyres == TRUE) {
|
|
6568 |
rfs4_free_reply(resop); |
|
6569 |
rfs4_copy_reply(resop, lastop); |
|
6570 |
} |
|
6571 |
NFS4_DEBUG(rfs4_debug, (CE_NOTE, |
|
6572 |
"Replayed SEQID %d\n", seqid)); |
|
6573 |
return (NFS4_CHKSEQ_REPLAY); |
|
6574 |
} |
|
6575 |
||
6576 |
/* If the incoming sequence is not the next expected then it is bad */ |
|
6577 |
if (rqst_seq != seqid + 1) {
|
|
6578 |
if (rqst_seq == seqid) {
|
|
6579 |
NFS4_DEBUG(rfs4_debug, |
|
6580 |
(CE_NOTE, "BAD SEQID: Replayed sequence id " |
|
6581 |
"but last op was %d current op is %d\n", |
|
6582 |
lastop->resop, resop->resop)); |
|
6583 |
return (NFS4_CHKSEQ_BAD); |
|
6584 |
} |
|
6585 |
NFS4_DEBUG(rfs4_debug, |
|
6586 |
(CE_NOTE, "BAD SEQID: got %u expecting %u\n", |
|
6587 |
rqst_seq, seqid)); |
|
6588 |
return (NFS4_CHKSEQ_BAD); |
|
6589 |
} |
|
6590 |
||
6591 |
/* Everything okay -- next expected */ |
|
6592 |
return (NFS4_CHKSEQ_OKAY); |
|
6593 |
} |
|
6594 |
||
6595 |
||
6596 |
static rfs4_chkseq_t |
|
6597 |
rfs4_check_open_seqid(seqid4 seqid, rfs4_openowner_t *op, nfs_resop4 *resop) |
|
6598 |
{
|
|
6599 |
rfs4_chkseq_t rc; |
|
6600 |
||
6601 |
rfs4_dbe_lock(op->dbe); |
|
6602 |
rc = rfs4_check_seqid(op->open_seqid, op->reply, seqid, resop, TRUE); |
|
6603 |
rfs4_dbe_unlock(op->dbe); |
|
6604 |
||
6605 |
if (rc == NFS4_CHKSEQ_OKAY) |
|
6606 |
rfs4_update_lease(op->client); |
|
6607 |
||
6608 |
return (rc); |
|
6609 |
} |
|
6610 |
||
6611 |
static rfs4_chkseq_t |
|
6612 |
rfs4_check_olo_seqid(seqid4 olo_seqid, rfs4_openowner_t *op, |
|
6613 |
nfs_resop4 *resop) |
|
6614 |
{
|
|
6615 |
rfs4_chkseq_t rc; |
|
6616 |
||
6617 |
rfs4_dbe_lock(op->dbe); |
|
6618 |
rc = rfs4_check_seqid(op->open_seqid, op->reply, |
|
6619 |
olo_seqid, resop, FALSE); |
|
6620 |
rfs4_dbe_unlock(op->dbe); |
|
6621 |
||
6622 |
return (rc); |
|
6623 |
} |
|
6624 |
||
6625 |
static rfs4_chkseq_t |
|
6626 |
rfs4_check_lock_seqid(seqid4 seqid, rfs4_lo_state_t *lp, nfs_resop4 *resop) |
|
6627 |
{
|
|
6628 |
rfs4_chkseq_t rc = NFS4_CHKSEQ_OKAY; |
|
6629 |
||
6630 |
rfs4_dbe_lock(lp->dbe); |
|
6631 |
if (!lp->skip_seqid_check) |
|
6632 |
rc = rfs4_check_seqid(lp->seqid, lp->reply, |
|
6633 |
seqid, resop, TRUE); |
|
6634 |
rfs4_dbe_unlock(lp->dbe); |
|
6635 |
||
6636 |
return (rc); |
|
6637 |
} |
|
6638 |
||
6639 |
static void |
|
6640 |
rfs4_op_open(nfs_argop4 *argop, nfs_resop4 *resop, |
|
6641 |
struct svc_req *req, struct compound_state *cs) |
|
6642 |
{
|
|
6643 |
OPEN4args *args = &argop->nfs_argop4_u.opopen; |
|
6644 |
OPEN4res *resp = &resop->nfs_resop4_u.opopen; |
|
6645 |
open_owner4 *owner = &args->owner; |
|
6646 |
open_claim_type4 claim = args->claim; |
|
6647 |
rfs4_client_t *cp; |
|
6648 |
rfs4_openowner_t *oo; |
|
6649 |
bool_t create; |
|
6650 |
bool_t replay = FALSE; |
|
6651 |
int can_reclaim; |
|
6652 |
||
6653 |
||
6654 |
if (cs->vp == NULL) {
|
|
6655 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
6656 |
return; |
|
6657 |
} |
|
6658 |
||
6659 |
/* |
|
6660 |
* Need to check clientid and lease expiration first based on |
|
6661 |
* error ordering and incrementing sequence id. |
|
6662 |
*/ |
|
6663 |
cp = rfs4_findclient_by_id(owner->clientid, FALSE); |
|
6664 |
if (cp == NULL) {
|
|
6665 |
*cs->statusp = resp->status = |
|
6666 |
rfs4_check_clientid(&owner->clientid, 0); |
|
6667 |
return; |
|
6668 |
} |
|
6669 |
||
6670 |
if (rfs4_lease_expired(cp)) {
|
|
6671 |
rfs4_client_close(cp); |
|
6672 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
6673 |
return; |
|
6674 |
} |
|
6675 |
can_reclaim = cp->can_reclaim; |
|
6676 |
||
6677 |
/* |
|
6678 |
* Find the open_owner for use from this point forward. Take |
|
6679 |
* care in updating the sequence id based on the type of error |
|
6680 |
* being returned. |
|
6681 |
*/ |
|
6682 |
retry: |
|
6683 |
create = TRUE; |
|
6684 |
oo = rfs4_findopenowner(owner, &create, args->seqid); |
|
6685 |
if (oo == NULL) {
|
|
6686 |
*cs->statusp = resp->status = NFS4ERR_STALE_CLIENTID; |
|
6687 |
rfs4_client_rele(cp); |
|
6688 |
return; |
|
6689 |
} |
|
6690 |
||
6691 |
/* Hold off access to the sequence space while the open is done */ |
|
6692 |
rfs4_sw_enter(&oo->oo_sw); |
|
6693 |
||
6694 |
/* |
|
6695 |
* If the open_owner existed before at the server, then check |
|
6696 |
* the sequence id. |
|
6697 |
*/ |
|
6698 |
if (!create && !oo->postpone_confirm) {
|
|
6699 |
switch (rfs4_check_open_seqid(args->seqid, oo, resop)) {
|
|
6700 |
case NFS4_CHKSEQ_BAD: |
|
6701 |
if ((args->seqid > oo->open_seqid) && |
|
6702 |
oo->need_confirm) {
|
|
6703 |
rfs4_free_opens(oo, TRUE, FALSE); |
|
6704 |
rfs4_sw_exit(&oo->oo_sw); |
|
6705 |
rfs4_openowner_rele(oo); |
|
6706 |
goto retry; |
|
6707 |
} |
|
6708 |
resp->status = NFS4ERR_BAD_SEQID; |
|
6709 |
goto out; |
|
6710 |
case NFS4_CHKSEQ_REPLAY: /* replay of previous request */ |
|
6711 |
replay = TRUE; |
|
6712 |
goto out; |
|
6713 |
default: |
|
6714 |
break; |
|
6715 |
} |
|
6716 |
||
6717 |
/* |
|
6718 |
* Sequence was ok and open owner exists |
|
6719 |
* check to see if we have yet to see an |
|
6720 |
* open_confirm. |
|
6721 |
*/ |
|
6722 |
if (oo->need_confirm) {
|
|
6723 |
rfs4_free_opens(oo, TRUE, FALSE); |
|
6724 |
rfs4_sw_exit(&oo->oo_sw); |
|
6725 |
rfs4_openowner_rele(oo); |
|
6726 |
goto retry; |
|
6727 |
} |
|
6728 |
} |
|
6729 |
/* Grace only applies to regular-type OPENs */ |
|
6730 |
if (rfs4_clnt_in_grace(cp) && |
|
6731 |
(claim == CLAIM_NULL || claim == CLAIM_DELEGATE_CUR)) {
|
|
6732 |
*cs->statusp = resp->status = NFS4ERR_GRACE; |
|
6733 |
goto out; |
|
6734 |
} |
|
6735 |
||
6736 |
/* |
|
6737 |
* If previous state at the server existed then can_reclaim |
|
6738 |
* will be set. If not reply NFS4ERR_NO_GRACE to the |
|
6739 |
* client. |
|
6740 |
*/ |
|
6741 |
if (rfs4_clnt_in_grace(cp) && claim == CLAIM_PREVIOUS && !can_reclaim) {
|
|
6742 |
*cs->statusp = resp->status = NFS4ERR_NO_GRACE; |
|
6743 |
goto out; |
|
6744 |
} |
|
6745 |
||
6746 |
||
6747 |
/* |
|
6748 |
* Reject the open if the client has missed the grace period |
|
6749 |
*/ |
|
6750 |
if (!rfs4_clnt_in_grace(cp) && claim == CLAIM_PREVIOUS) {
|
|
6751 |
*cs->statusp = resp->status = NFS4ERR_NO_GRACE; |
|
6752 |
goto out; |
|
6753 |
} |
|
6754 |
||
6755 |
/* Couple of up-front bookkeeping items */ |
|
6756 |
if (oo->need_confirm) {
|
|
6757 |
/* |
|
6758 |
* If this is a reclaim OPEN then we should not ask |
|
6759 |
* for a confirmation of the open_owner per the |
|
6760 |
* protocol specification. |
|
6761 |
*/ |
|
6762 |
if (claim == CLAIM_PREVIOUS) |
|
6763 |
oo->need_confirm = FALSE; |
|
6764 |
else |
|
6765 |
resp->rflags |= OPEN4_RESULT_CONFIRM; |
|
6766 |
} |
|
6767 |
resp->rflags |= OPEN4_RESULT_LOCKTYPE_POSIX; |
|
6768 |
||
6769 |
/* |
|
6770 |
* If there is an unshared filesystem mounted on this vnode, |
|
6771 |
* do not allow to open/create in this directory. |
|
6772 |
*/ |
|
6773 |
if (vn_ismntpt(cs->vp)) {
|
|
6774 |
*cs->statusp = resp->status = NFS4ERR_ACCESS; |
|
6775 |
goto out; |
|
6776 |
} |
|
6777 |
||
6778 |
/* |
|
6779 |
* access must READ, WRITE, or BOTH. No access is invalid. |
|
6780 |
* deny can be READ, WRITE, BOTH, or NONE. |
|
6781 |
* bits not defined for access/deny are invalid. |
|
6782 |
*/ |
|
6783 |
if (! (args->share_access & OPEN4_SHARE_ACCESS_BOTH) || |
|
6784 |
(args->share_access & ~OPEN4_SHARE_ACCESS_BOTH) || |
|
6785 |
(args->share_deny & ~OPEN4_SHARE_DENY_BOTH)) {
|
|
6786 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
6787 |
goto out; |
|
6788 |
} |
|
6789 |
||
6790 |
||
6791 |
/* |
|
6792 |
* make sure attrset is zero before response is built. |
|
6793 |
*/ |
|
6794 |
resp->attrset = 0; |
|
6795 |
||
6796 |
switch (claim) {
|
|
6797 |
case CLAIM_NULL: |
|
6798 |
rfs4_do_opennull(cs, req, args, oo, resp); |
|
6799 |
break; |
|
6800 |
case CLAIM_PREVIOUS: |
|
6801 |
rfs4_do_openprev(cs, req, args, oo, resp); |
|
6802 |
break; |
|
6803 |
case CLAIM_DELEGATE_CUR: |
|
6804 |
rfs4_do_opendelcur(cs, req, args, oo, resp); |
|
6805 |
break; |
|
6806 |
case CLAIM_DELEGATE_PREV: |
|
6807 |
rfs4_do_opendelprev(cs, req, args, oo, resp); |
|
6808 |
break; |
|
6809 |
default: |
|
6810 |
resp->status = NFS4ERR_INVAL; |
|
6811 |
break; |
|
6812 |
} |
|
6813 |
||
6814 |
out: |
|
6815 |
rfs4_client_rele(cp); |
|
6816 |
||
6817 |
/* Catch sequence id handling here to make it a little easier */ |
|
6818 |
switch (resp->status) {
|
|
6819 |
case NFS4ERR_BADXDR: |
|
6820 |
case NFS4ERR_BAD_SEQID: |
|
6821 |
case NFS4ERR_BAD_STATEID: |
|
6822 |
case NFS4ERR_NOFILEHANDLE: |
|
6823 |
case NFS4ERR_RESOURCE: |
|
6824 |
case NFS4ERR_STALE_CLIENTID: |
|
6825 |
case NFS4ERR_STALE_STATEID: |
|
6826 |
/* |
|
6827 |
* The protocol states that if any of these errors are |
|
6828 |
* being returned, the sequence id should not be |
|
6829 |
* incremented. Any other return requires an |
|
6830 |
* increment. |
|
6831 |
*/ |
|
6832 |
break; |
|
6833 |
default: |
|
6834 |
/* Always update the lease in this case */ |
|
6835 |
rfs4_update_lease(oo->client); |
|
6836 |
||
6837 |
/* Regular response - copy the result */ |
|
6838 |
if (!replay) |
|
6839 |
rfs4_update_open_resp(oo, resop, &cs->fh); |
|
6840 |
||
6841 |
/* |
|
6842 |
* REPLAY case: Only if the previous response was OK |
|
6843 |
* do we copy the filehandle. If not OK, no |
|
6844 |
* filehandle to copy. |
|
6845 |
*/ |
|
6846 |
if (replay == TRUE && |
|
6847 |
resp->status == NFS4_OK && |
|
6848 |
oo->reply_fh.nfs_fh4_val) {
|
|
6849 |
/* |
|
6850 |
* If this is a replay, we must restore the |
|
6851 |
* current filehandle/vp to that of what was |
|
6852 |
* returned originally. Try our best to do |
|
6853 |
* it. |
|
6854 |
*/ |
|
6855 |
nfs_fh4_fmt_t *fh_fmtp = |
|
6856 |
(nfs_fh4_fmt_t *)oo->reply_fh.nfs_fh4_val; |
|
6857 |
||
6858 |
cs->exi = checkexport4(&fh_fmtp->fh4_fsid, |
|
6859 |
(fid_t *)&fh_fmtp->fh4_xlen, NULL); |
|
6860 |
||
6861 |
if (cs->exi == NULL) {
|
|
6862 |
resp->status = NFS4ERR_STALE; |
|
6863 |
goto finish; |
|
6864 |
} |
|
6865 |
||
6866 |
VN_RELE(cs->vp); |
|
6867 |
||
6868 |
cs->vp = nfs4_fhtovp(&oo->reply_fh, cs->exi, |
|
6869 |
&resp->status); |
|
6870 |
||
6871 |
if (cs->vp == NULL) |
|
6872 |
goto finish; |
|
6873 |
||
6874 |
nfs_fh4_copy(&oo->reply_fh, &cs->fh); |
|
6875 |
} |
|
6876 |
||
6877 |
/* |
|
6878 |
* If this was a replay, no need to update the |
|
6879 |
* sequence id. If the open_owner was not created on |
|
6880 |
* this pass, then update. The first use of an |
|
6881 |
* open_owner will not bump the sequence id. |
|
6882 |
*/ |
|
6883 |
if (replay == FALSE && !create) |
|
6884 |
rfs4_update_open_sequence(oo); |
|
6885 |
/* |
|
6886 |
* If the client is receiving an error and the |
|
6887 |
* open_owner needs to be confirmed, there is no way |
|
6888 |
* to notify the client of this fact ignoring the fact |
|
6889 |
* that the server has no method of returning a |
|
6890 |
* stateid to confirm. Therefore, the server needs to |
|
6891 |
* mark this open_owner in a way as to avoid the |
|
6892 |
* sequence id checking the next time the client uses |
|
6893 |
* this open_owner. |
|
6894 |
*/ |
|
6895 |
if (resp->status != NFS4_OK && oo->need_confirm) |
|
6896 |
oo->postpone_confirm = TRUE; |
|
6897 |
/* |
|
6898 |
* If OK response then clear the postpone flag and |
|
6899 |
* reset the sequence id to keep in sync with the |
|
6900 |
* client. |
|
6901 |
*/ |
|
6902 |
if (resp->status == NFS4_OK && oo->postpone_confirm) {
|
|
6903 |
oo->postpone_confirm = FALSE; |
|
6904 |
oo->open_seqid = args->seqid; |
|
6905 |
} |
|
6906 |
break; |
|
6907 |
} |
|
6908 |
||
6909 |
finish: |
|
6910 |
*cs->statusp = resp->status; |
|
6911 |
||
6912 |
rfs4_sw_exit(&oo->oo_sw); |
|
6913 |
rfs4_openowner_rele(oo); |
|
6914 |
} |
|
6915 |
||
6916 |
/*ARGSUSED*/ |
|
6917 |
void |
|
6918 |
rfs4_op_open_confirm(nfs_argop4 *argop, nfs_resop4 *resop, |
|
6919 |
struct svc_req *req, struct compound_state *cs) |
|
6920 |
{
|
|
6921 |
OPEN_CONFIRM4args *args = &argop->nfs_argop4_u.opopen_confirm; |
|
6922 |
OPEN_CONFIRM4res *resp = &resop->nfs_resop4_u.opopen_confirm; |
|
6923 |
rfs4_state_t *sp; |
|
6924 |
nfsstat4 status; |
|
6925 |
||
6926 |
if (cs->vp == NULL) {
|
|
6927 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
6928 |
return; |
|
6929 |
} |
|
6930 |
||
6931 |
status = rfs4_get_state(&args->open_stateid, &sp, RFS4_DBS_VALID); |
|
6932 |
if (status != NFS4_OK) {
|
|
6933 |
*cs->statusp = resp->status = status; |
|
6934 |
return; |
|
6935 |
} |
|
6936 |
||
6937 |
/* Ensure specified filehandle matches */ |
|
6938 |
if (cs->vp != sp->finfo->vp) {
|
|
6939 |
rfs4_state_rele(sp); |
|
6940 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
6941 |
return; |
|
6942 |
} |
|
6943 |
||
6944 |
/* hold off other access to open_owner while we tinker */ |
|
6945 |
rfs4_sw_enter(&sp->owner->oo_sw); |
|
6946 |
||
6947 |
switch (rfs4_check_stateid_seqid(sp, &args->open_stateid)) {
|
|
6948 |
case NFS4_CHECK_STATEID_OKAY: |
|
6949 |
if (rfs4_check_open_seqid(args->seqid, sp->owner, |
|
6950 |
resop) != 0) {
|
|
6951 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
6952 |
break; |
|
6953 |
} |
|
6954 |
/* |
|
6955 |
* If it is the appropriate stateid and determined to |
|
6956 |
* be "OKAY" then this means that the stateid does not |
|
6957 |
* need to be confirmed and the client is in error for |
|
6958 |
* sending an OPEN_CONFIRM. |
|
6959 |
*/ |
|
6960 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
6961 |
break; |
|
6962 |
case NFS4_CHECK_STATEID_OLD: |
|
6963 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
6964 |
break; |
|
6965 |
case NFS4_CHECK_STATEID_BAD: |
|
6966 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
6967 |
break; |
|
6968 |
case NFS4_CHECK_STATEID_EXPIRED: |
|
6969 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
6970 |
break; |
|
6971 |
case NFS4_CHECK_STATEID_CLOSED: |
|
6972 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
6973 |
break; |
|
6974 |
case NFS4_CHECK_STATEID_REPLAY: |
|
6975 |
switch (rfs4_check_open_seqid(args->seqid, sp->owner, resop)) {
|
|
6976 |
case NFS4_CHKSEQ_OKAY: |
|
6977 |
/* |
|
6978 |
* This is replayed stateid; if seqid matches |
|
6979 |
* next expected, then client is using wrong seqid. |
|
6980 |
*/ |
|
6981 |
/* fall through */ |
|
6982 |
case NFS4_CHKSEQ_BAD: |
|
6983 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
6984 |
break; |
|
6985 |
case NFS4_CHKSEQ_REPLAY: |
|
6986 |
/* |
|
6987 |
* Note this case is the duplicate case so |
|
6988 |
* resp->status is already set. |
|
6989 |
*/ |
|
6990 |
*cs->statusp = resp->status; |
|
6991 |
rfs4_update_lease(sp->owner->client); |
|
6992 |
break; |
|
6993 |
} |
|
6994 |
break; |
|
6995 |
case NFS4_CHECK_STATEID_UNCONFIRMED: |
|
6996 |
if (rfs4_check_open_seqid(args->seqid, sp->owner, |
|
6997 |
resop) != NFS4_CHKSEQ_OKAY) {
|
|
6998 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
6999 |
break; |
|
7000 |
} |
|
7001 |
*cs->statusp = resp->status = NFS4_OK; |
|
7002 |
||
7003 |
next_stateid(&sp->stateid); |
|
7004 |
resp->open_stateid = sp->stateid.stateid; |
|
7005 |
sp->owner->need_confirm = FALSE; |
|
7006 |
rfs4_update_lease(sp->owner->client); |
|
7007 |
rfs4_update_open_sequence(sp->owner); |
|
7008 |
rfs4_update_open_resp(sp->owner, resop, NULL); |
|
7009 |
break; |
|
7010 |
default: |
|
7011 |
ASSERT(FALSE); |
|
7012 |
*cs->statusp = resp->status = NFS4ERR_SERVERFAULT; |
|
7013 |
break; |
|
7014 |
} |
|
7015 |
rfs4_sw_exit(&sp->owner->oo_sw); |
|
7016 |
rfs4_state_rele(sp); |
|
7017 |
} |
|
7018 |
||
7019 |
/*ARGSUSED*/ |
|
7020 |
void |
|
7021 |
rfs4_op_open_downgrade(nfs_argop4 *argop, nfs_resop4 *resop, |
|
7022 |
struct svc_req *req, struct compound_state *cs) |
|
7023 |
{
|
|
7024 |
OPEN_DOWNGRADE4args *args = &argop->nfs_argop4_u.opopen_downgrade; |
|
7025 |
OPEN_DOWNGRADE4res *resp = &resop->nfs_resop4_u.opopen_downgrade; |
|
7026 |
uint32_t access = args->share_access; |
|
7027 |
uint32_t deny = args->share_deny; |
|
7028 |
nfsstat4 status; |
|
7029 |
rfs4_state_t *sp; |
|
7030 |
rfs4_file_t *fp; |
|
7031 |
||
7032 |
if (cs->vp == NULL) {
|
|
7033 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
7034 |
return; |
|
7035 |
} |
|
7036 |
||
7037 |
status = rfs4_get_state(&args->open_stateid, &sp, RFS4_DBS_VALID); |
|
7038 |
if (status != NFS4_OK) {
|
|
7039 |
*cs->statusp = resp->status = status; |
|
7040 |
return; |
|
7041 |
} |
|
7042 |
||
7043 |
/* Ensure specified filehandle matches */ |
|
7044 |
if (cs->vp != sp->finfo->vp) {
|
|
7045 |
rfs4_state_rele(sp); |
|
7046 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
7047 |
return; |
|
7048 |
} |
|
7049 |
||
7050 |
/* hold off other access to open_owner while we tinker */ |
|
7051 |
rfs4_sw_enter(&sp->owner->oo_sw); |
|
7052 |
||
7053 |
switch (rfs4_check_stateid_seqid(sp, &args->open_stateid)) {
|
|
7054 |
case NFS4_CHECK_STATEID_OKAY: |
|
7055 |
if (rfs4_check_open_seqid(args->seqid, sp->owner, |
|
7056 |
resop) != NFS4_CHKSEQ_OKAY) {
|
|
7057 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
7058 |
goto end; |
|
7059 |
} |
|
7060 |
break; |
|
7061 |
case NFS4_CHECK_STATEID_OLD: |
|
7062 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
7063 |
goto end; |
|
7064 |
case NFS4_CHECK_STATEID_BAD: |
|
7065 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
7066 |
goto end; |
|
7067 |
case NFS4_CHECK_STATEID_EXPIRED: |
|
7068 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
7069 |
goto end; |
|
7070 |
case NFS4_CHECK_STATEID_CLOSED: |
|
7071 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
7072 |
goto end; |
|
7073 |
case NFS4_CHECK_STATEID_UNCONFIRMED: |
|
7074 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
7075 |
goto end; |
|
7076 |
case NFS4_CHECK_STATEID_REPLAY: |
|
7077 |
/* Check the sequence id for the open owner */ |
|
7078 |
switch (rfs4_check_open_seqid(args->seqid, sp->owner, resop)) {
|
|
7079 |
case NFS4_CHKSEQ_OKAY: |
|
7080 |
/* |
|
7081 |
* This is replayed stateid; if seqid matches |
|
7082 |
* next expected, then client is using wrong seqid. |
|
7083 |
*/ |
|
7084 |
/* fall through */ |
|
7085 |
case NFS4_CHKSEQ_BAD: |
|
7086 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
7087 |
goto end; |
|
7088 |
case NFS4_CHKSEQ_REPLAY: |
|
7089 |
/* |
|
7090 |
* Note this case is the duplicate case so |
|
7091 |
* resp->status is already set. |
|
7092 |
*/ |
|
7093 |
*cs->statusp = resp->status; |
|
7094 |
rfs4_update_lease(sp->owner->client); |
|
7095 |
goto end; |
|
7096 |
} |
|
7097 |
break; |
|
7098 |
default: |
|
7099 |
ASSERT(FALSE); |
|
7100 |
break; |
|
7101 |
} |
|
7102 |
||
7103 |
rfs4_dbe_lock(sp->dbe); |
|
7104 |
/* |
|
7105 |
* Check that the new access modes and deny modes are valid. |
|
7106 |
* Check that no invalid bits are set. |
|
7107 |
*/ |
|
7108 |
if ((access & ~(OPEN4_SHARE_ACCESS_READ | OPEN4_SHARE_ACCESS_WRITE)) || |
|
7109 |
(deny & ~(OPEN4_SHARE_DENY_READ | OPEN4_SHARE_DENY_READ))) {
|
|
7110 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
7111 |
rfs4_update_open_sequence(sp->owner); |
|
7112 |
rfs4_dbe_unlock(sp->dbe); |
|
7113 |
goto end; |
|
7114 |
} |
|
7115 |
||
7116 |
/* |
|
7117 |
* The new modes must be a subset of the current modes and |
|
7118 |
* the access must specify at least one mode. To test that |
|
7119 |
* the new mode is a subset of the current modes we bitwise |
|
7120 |
* AND them together and check that the result equals the new |
|
7121 |
* mode. For example: |
|
7122 |
* New mode, access == R and current mode, sp->share_access == RW |
|
7123 |
* access & sp->share_access == R == access, so the new access mode |
|
7124 |
* is valid. Consider access == RW, sp->share_access = R |
|
7125 |
* access & sp->share_access == R != access, so the new access mode |
|
7126 |
* is invalid. |
|
7127 |
*/ |
|
7128 |
if ((access & sp->share_access) != access || |
|
7129 |
(deny & sp->share_deny) != deny || |
|
7130 |
(access & |
|
7131 |
(OPEN4_SHARE_ACCESS_READ | OPEN4_SHARE_ACCESS_WRITE)) == 0) {
|
|
7132 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
7133 |
rfs4_update_open_sequence(sp->owner); |
|
7134 |
rfs4_dbe_unlock(sp->dbe); |
|
7135 |
goto end; |
|
7136 |
} |
|
7137 |
||
7138 |
/* |
|
7139 |
* Release any share locks associated with this stateID. |
|
7140 |
* Strictly speaking, this violates the spec because the |
|
7141 |
* spec effectively requires that open downgrade be atomic. |
|
7142 |
* At present, fs_shrlock does not have this capability. |
|
7143 |
*/ |
|
7144 |
rfs4_dbe_unlock(sp->dbe); |
|
7145 |
rfs4_unshare(sp); |
|
7146 |
rfs4_dbe_lock(sp->dbe); |
|
7147 |
||
7148 |
fp = sp->finfo; |
|
7149 |
rfs4_dbe_lock(fp->dbe); |
|
7150 |
||
7151 |
/* |
|
7152 |
* If the current mode has deny read and the new mode |
|
7153 |
* does not, decrement the number of deny read mode bits |
|
7154 |
* and if it goes to zero turn off the deny read bit |
|
7155 |
* on the file. |
|
7156 |
*/ |
|
7157 |
if ((sp->share_deny & OPEN4_SHARE_DENY_READ) && |
|
7158 |
(deny & OPEN4_SHARE_DENY_READ) == 0) {
|
|
7159 |
fp->deny_read--; |
|
7160 |
if (fp->deny_read == 0) |
|
7161 |
fp->share_deny &= ~OPEN4_SHARE_DENY_READ; |
|
7162 |
} |
|
7163 |
||
7164 |
/* |
|
7165 |
* If the current mode has deny write and the new mode |
|
7166 |
* does not, decrement the number of deny write mode bits |
|
7167 |
* and if it goes to zero turn off the deny write bit |
|
7168 |
* on the file. |
|
7169 |
*/ |
|
7170 |
if ((sp->share_deny & OPEN4_SHARE_DENY_WRITE) && |
|
7171 |
(deny & OPEN4_SHARE_DENY_WRITE) == 0) {
|
|
7172 |
fp->deny_write--; |
|
7173 |
if (fp->deny_write == 0) |
|
7174 |
fp->share_deny &= ~OPEN4_SHARE_DENY_WRITE; |
|
7175 |
} |
|
7176 |
||
7177 |
/* |
|
7178 |
* If the current mode has access read and the new mode |
|
7179 |
* does not, decrement the number of access read mode bits |
|
7180 |
* and if it goes to zero turn off the access read bit |
|
7181 |
* on the file. |
|
7182 |
*/ |
|
7183 |
if ((sp->share_access & OPEN4_SHARE_ACCESS_READ) && |
|
7184 |
(access & OPEN4_SHARE_ACCESS_READ) == 0) {
|
|
7185 |
fp->access_read--; |
|
7186 |
if (fp->access_read == 0) |
|
7187 |
fp->share_access &= ~OPEN4_SHARE_ACCESS_READ; |
|
7188 |
} |
|
7189 |
||
7190 |
/* |
|
7191 |
* If the current mode has access write and the new mode |
|
7192 |
* does not, decrement the number of access write mode bits |
|
7193 |
* and if it goes to zero turn off the access write bit |
|
7194 |
* on the file. |
|
7195 |
*/ |
|
7196 |
if ((sp->share_access & OPEN4_SHARE_ACCESS_WRITE) && |
|
7197 |
(access & OPEN4_SHARE_ACCESS_WRITE) == 0) {
|
|
7198 |
fp->access_write--; |
|
7199 |
if (fp->access_write == 0) |
|
7200 |
fp->share_deny &= ~OPEN4_SHARE_ACCESS_WRITE; |
|
7201 |
} |
|
7202 |
||
7203 |
/* Set the new access and deny modes */ |
|
7204 |
sp->share_access = access; |
|
7205 |
sp->share_deny = deny; |
|
7206 |
/* Check that the file is still accessible */ |
|
7207 |
ASSERT(fp->share_access); |
|
7208 |
||
7209 |
rfs4_dbe_unlock(fp->dbe); |
|
7210 |
||
7211 |
rfs4_dbe_unlock(sp->dbe); |
|
7212 |
if ((status = rfs4_share(sp)) != NFS4_OK) {
|
|
7213 |
*cs->statusp = resp->status = NFS4ERR_SERVERFAULT; |
|
7214 |
rfs4_update_open_sequence(sp->owner); |
|
7215 |
goto end; |
|
7216 |
} |
|
7217 |
||
7218 |
rfs4_dbe_lock(sp->dbe); |
|
7219 |
||
7220 |
/* Update the stateid */ |
|
7221 |
next_stateid(&sp->stateid); |
|
7222 |
resp->open_stateid = sp->stateid.stateid; |
|
7223 |
||
7224 |
rfs4_dbe_unlock(sp->dbe); |
|
7225 |
||
7226 |
*cs->statusp = resp->status = NFS4_OK; |
|
7227 |
/* Update the lease */ |
|
7228 |
rfs4_update_lease(sp->owner->client); |
|
7229 |
/* And the sequence */ |
|
7230 |
rfs4_update_open_sequence(sp->owner); |
|
7231 |
rfs4_update_open_resp(sp->owner, resop, NULL); |
|
7232 |
||
7233 |
end: |
|
7234 |
rfs4_sw_exit(&sp->owner->oo_sw); |
|
7235 |
rfs4_state_rele(sp); |
|
7236 |
} |
|
7237 |
||
7238 |
/* |
|
7239 |
* The logic behind this function is detailed in the NFSv4 RFC in the |
|
7240 |
* SETCLIENTID operation description under IMPLEMENTATION. Refer to |
|
7241 |
* that section for explicit guidance to server behavior for |
|
7242 |
* SETCLIENTID. |
|
7243 |
*/ |
|
7244 |
void |
|
7245 |
rfs4_op_setclientid(nfs_argop4 *argop, nfs_resop4 *resop, |
|
7246 |
struct svc_req *req, struct compound_state *cs) |
|
7247 |
{
|
|
7248 |
SETCLIENTID4args *args = &argop->nfs_argop4_u.opsetclientid; |
|
7249 |
SETCLIENTID4res *res = &resop->nfs_resop4_u.opsetclientid; |
|
7250 |
rfs4_client_t *cp, *newcp, *cp_confirmed, *cp_unconfirmed; |
|
7251 |
bool_t create = TRUE; |
|
7252 |
char *addr, *netid; |
|
7253 |
int len; |
|
7254 |
||
7255 |
retry: |
|
7256 |
newcp = cp_confirmed = cp_unconfirmed = NULL; |
|
7257 |
||
7258 |
/* |
|
7259 |
* In search of an EXISTING client matching the incoming |
|
7260 |
* request to establish a new client identifier at the server |
|
7261 |
*/ |
|
7262 |
create = TRUE; |
|
7263 |
cp = rfs4_findclient(&args->client, &create, NULL); |
|
7264 |
||
7265 |
/* Should never happen */ |
|
7266 |
ASSERT(cp != NULL); |
|
7267 |
||
7268 |
if (cp == NULL) {
|
|
7269 |
*cs->statusp = res->status = NFS4ERR_SERVERFAULT; |
|
7270 |
return; |
|
7271 |
} |
|
7272 |
||
7273 |
/* |
|
7274 |
* Easiest case. Client identifier is newly created and is |
|
7275 |
* unconfirmed. Also note that for this case, no other |
|
7276 |
* entries exist for the client identifier. Nothing else to |
|
7277 |
* check. Just setup the response and respond. |
|
7278 |
*/ |
|
7279 |
if (create) {
|
|
7280 |
*cs->statusp = res->status = NFS4_OK; |
|
7281 |
res->SETCLIENTID4res_u.resok4.clientid = cp->clientid; |
|
7282 |
res->SETCLIENTID4res_u.resok4.setclientid_confirm = |
|
7283 |
cp->confirm_verf; |
|
7284 |
/* Setup callback information; CB_NULL confirmation later */ |
|
7285 |
rfs4_client_setcb(cp, &args->callback, args->callback_ident); |
|
7286 |
||
7287 |
rfs4_client_rele(cp); |
|
7288 |
return; |
|
7289 |
} |
|
7290 |
||
7291 |
/* |
|
7292 |
* An existing, confirmed client may exist but it may not have |
|
7293 |
* been active for at least one lease period. If so, then |
|
7294 |
* "close" the client and create a new client identifier |
|
7295 |
*/ |
|
7296 |
if (rfs4_lease_expired(cp)) {
|
|
7297 |
rfs4_client_close(cp); |
|
7298 |
goto retry; |
|
7299 |
} |
|
7300 |
||
7301 |
if (cp->need_confirm == TRUE) |
|
7302 |
cp_unconfirmed = cp; |
|
7303 |
else |
|
7304 |
cp_confirmed = cp; |
|
7305 |
||
7306 |
cp = NULL; |
|
7307 |
||
7308 |
/* |
|
7309 |
* We have a confirmed client, now check for an |
|
7310 |
* unconfimred entry |
|
7311 |
*/ |
|
7312 |
if (cp_confirmed) {
|
|
7313 |
/* If creds don't match then client identifier is inuse */ |
|
7314 |
if (!creds_ok(cp_confirmed->cr_set, req, cs)) {
|
|
7315 |
rfs4_cbinfo_t *cbp; |
|
7316 |
/* |
|
7317 |
* Some one else has established this client |
|
7318 |
* id. Try and say * who they are. We will use |
|
7319 |
* the call back address supplied by * the |
|
7320 |
* first client. |
|
7321 |
*/ |
|
7322 |
*cs->statusp = res->status = NFS4ERR_CLID_INUSE; |
|
7323 |
||
7324 |
addr = netid = NULL; |
|
7325 |
||
7326 |
cbp = &cp_confirmed->cbinfo; |
|
7327 |
if (cbp->cb_callback.cb_location.r_addr && |
|
7328 |
cbp->cb_callback.cb_location.r_netid) {
|
|
7329 |
cb_client4 *cbcp = &cbp->cb_callback; |
|
7330 |
||
7331 |
len = strlen(cbcp->cb_location.r_addr)+1; |
|
7332 |
addr = kmem_alloc(len, KM_SLEEP); |
|
7333 |
bcopy(cbcp->cb_location.r_addr, addr, len); |
|
7334 |
len = strlen(cbcp->cb_location.r_netid)+1; |
|
7335 |
netid = kmem_alloc(len, KM_SLEEP); |
|
7336 |
bcopy(cbcp->cb_location.r_netid, netid, len); |
|
7337 |
} |
|
7338 |
||
7339 |
res->SETCLIENTID4res_u.client_using.r_addr = addr; |
|
7340 |
res->SETCLIENTID4res_u.client_using.r_netid = netid; |
|
7341 |
||
7342 |
rfs4_client_rele(cp_confirmed); |
|
7343 |
} |
|
7344 |
||
7345 |
/* |
|
7346 |
* Confirmed, creds match, and verifier matches; must |
|
7347 |
* be an update of the callback info |
|
7348 |
*/ |
|
7349 |
if (cp_confirmed->nfs_client.verifier == |
|
7350 |
args->client.verifier) {
|
|
7351 |
/* Setup callback information */ |
|
7352 |
rfs4_client_setcb(cp_confirmed, &args->callback, |
|
7353 |
args->callback_ident); |
|
7354 |
||
7355 |
/* everything okay -- move ahead */ |
|
7356 |
*cs->statusp = res->status = NFS4_OK; |
|
7357 |
res->SETCLIENTID4res_u.resok4.clientid = |
|
7358 |
cp_confirmed->clientid; |
|
7359 |
||
7360 |
/* update the confirm_verifier and return it */ |
|
7361 |
rfs4_client_scv_next(cp_confirmed); |
|
7362 |
res->SETCLIENTID4res_u.resok4.setclientid_confirm = |
|
7363 |
cp_confirmed->confirm_verf; |
|
7364 |
||
7365 |
rfs4_client_rele(cp_confirmed); |
|
7366 |
return; |
|
7367 |
} |
|
7368 |
||
7369 |
/* |
|
7370 |
* Creds match but the verifier doesn't. Must search |
|
7371 |
* for an unconfirmed client that would be replaced by |
|
7372 |
* this request. |
|
7373 |
*/ |
|
7374 |
create = FALSE; |
|
7375 |
cp_unconfirmed = rfs4_findclient(&args->client, &create, |
|
7376 |
cp_confirmed); |
|
7377 |
} |
|
7378 |
||
7379 |
/* |
|
7380 |
* At this point, we have taken care of the brand new client |
|
7381 |
* struct, INUSE case, update of an existing, and confirmed |
|
7382 |
* client struct. |
|
7383 |
*/ |
|
7384 |
||
7385 |
/* |
|
7386 |
* check to see if things have changed while we originally |
|
7387 |
* picked up the client struct. If they have, then return and |
|
7388 |
* retry the processing of this SETCLIENTID request. |
|
7389 |
*/ |
|
7390 |
if (cp_unconfirmed) {
|
|
7391 |
rfs4_dbe_lock(cp_unconfirmed->dbe); |
|
7392 |
if (!cp_unconfirmed->need_confirm) {
|
|
7393 |
rfs4_dbe_unlock(cp_unconfirmed->dbe); |
|
7394 |
rfs4_client_rele(cp_unconfirmed); |
|
7395 |
if (cp_confirmed) |
|
7396 |
rfs4_client_rele(cp_confirmed); |
|
7397 |
goto retry; |
|
7398 |
} |
|
7399 |
/* do away with the old unconfirmed one */ |
|
7400 |
rfs4_dbe_invalidate(cp_unconfirmed->dbe); |
|
7401 |
rfs4_dbe_unlock(cp_unconfirmed->dbe); |
|
7402 |
rfs4_client_rele(cp_unconfirmed); |
|
7403 |
cp_unconfirmed = NULL; |
|
7404 |
} |
|
7405 |
||
7406 |
/* |
|
7407 |
* This search will temporarily hide the confirmed client |
|
7408 |
* struct while a new client struct is created as the |
|
7409 |
* unconfirmed one. |
|
7410 |
*/ |
|
7411 |
create = TRUE; |
|
7412 |
newcp = rfs4_findclient(&args->client, &create, cp_confirmed); |
|
7413 |
||
7414 |
ASSERT(newcp != NULL); |
|
7415 |
||
7416 |
if (newcp == NULL) {
|
|
7417 |
*cs->statusp = res->status = NFS4ERR_SERVERFAULT; |
|
7418 |
rfs4_client_rele(cp_confirmed); |
|
7419 |
return; |
|
7420 |
} |
|
7421 |
||
7422 |
/* |
|
7423 |
* If one was not created, then a similar request must be in |
|
7424 |
* process so release and start over with this one |
|
7425 |
*/ |
|
7426 |
if (create != TRUE) {
|
|
7427 |
rfs4_client_rele(newcp); |
|
7428 |
if (cp_confirmed) |
|
7429 |
rfs4_client_rele(cp_confirmed); |
|
7430 |
goto retry; |
|
7431 |
} |
|
7432 |
||
7433 |
*cs->statusp = res->status = NFS4_OK; |
|
7434 |
res->SETCLIENTID4res_u.resok4.clientid = newcp->clientid; |
|
7435 |
res->SETCLIENTID4res_u.resok4.setclientid_confirm = |
|
7436 |
newcp->confirm_verf; |
|
7437 |
/* Setup callback information; CB_NULL confirmation later */ |
|
7438 |
rfs4_client_setcb(newcp, &args->callback, |
|
7439 |
args->callback_ident); |
|
7440 |
||
7441 |
newcp->cp_confirmed = cp_confirmed; |
|
7442 |
||
7443 |
rfs4_client_rele(newcp); |
|
7444 |
} |
|
7445 |
||
7446 |
/*ARGSUSED*/ |
|
7447 |
void |
|
7448 |
rfs4_op_setclientid_confirm(nfs_argop4 *argop, nfs_resop4 *resop, |
|
7449 |
struct svc_req *req, struct compound_state *cs) |
|
7450 |
{
|
|
7451 |
SETCLIENTID_CONFIRM4args *args = |
|
7452 |
&argop->nfs_argop4_u.opsetclientid_confirm; |
|
7453 |
SETCLIENTID_CONFIRM4res *res = |
|
7454 |
&resop->nfs_resop4_u.opsetclientid_confirm; |
|
7455 |
rfs4_client_t *cp, *cptoclose = NULL; |
|
7456 |
||
7457 |
*cs->statusp = res->status = NFS4_OK; |
|
7458 |
||
7459 |
cp = rfs4_findclient_by_id(args->clientid, TRUE); |
|
7460 |
||
7461 |
if (cp == NULL) {
|
|
7462 |
*cs->statusp = res->status = |
|
7463 |
rfs4_check_clientid(&args->clientid, 1); |
|
7464 |
return; |
|
7465 |
} |
|
7466 |
||
7467 |
if (!creds_ok(cp, req, cs)) {
|
|
7468 |
*cs->statusp = res->status = NFS4ERR_CLID_INUSE; |
|
7469 |
rfs4_client_rele(cp); |
|
7470 |
return; |
|
7471 |
} |
|
7472 |
||
7473 |
/* If the verifier doesn't match, the record doesn't match */ |
|
7474 |
if (cp->confirm_verf != args->setclientid_confirm) {
|
|
7475 |
*cs->statusp = res->status = NFS4ERR_STALE_CLIENTID; |
|
7476 |
rfs4_client_rele(cp); |
|
7477 |
return; |
|
7478 |
} |
|
7479 |
||
7480 |
rfs4_dbe_lock(cp->dbe); |
|
7481 |
cp->need_confirm = FALSE; |
|
7482 |
if (cp->cp_confirmed) {
|
|
7483 |
cptoclose = cp->cp_confirmed; |
|
7484 |
cptoclose->ss_remove = 1; |
|
7485 |
cp->cp_confirmed = NULL; |
|
7486 |
} |
|
7487 |
||
7488 |
/* |
|
7489 |
* Record clientid in stable storage |
|
7490 |
*/ |
|
7491 |
rfs4_ss_clid(cp, req); |
|
7492 |
||
7493 |
rfs4_dbe_unlock(cp->dbe); |
|
7494 |
||
7495 |
if (cptoclose) |
|
7496 |
/* don't need to rele, client_close does it */ |
|
7497 |
rfs4_client_close(cptoclose); |
|
7498 |
||
7499 |
/* If needed, initiate CB_NULL call for callback path */ |
|
7500 |
rfs4_deleg_cb_check(cp); |
|
7501 |
rfs4_update_lease(cp); |
|
7502 |
||
7503 |
/* |
|
7504 |
* Update the client's associated server instance, if it's changed |
|
7505 |
* since the client was created. |
|
7506 |
*/ |
|
7507 |
if (rfs4_servinst(cp) != rfs4_cur_servinst) |
|
7508 |
rfs4_servinst_assign(cp, rfs4_cur_servinst); |
|
7509 |
||
7510 |
/* |
|
7511 |
* Check to see if client can perform reclaims |
|
7512 |
*/ |
|
7513 |
rfs4_ss_chkclid(cp); |
|
7514 |
||
7515 |
rfs4_client_rele(cp); |
|
7516 |
} |
|
7517 |
||
7518 |
||
7519 |
/*ARGSUSED*/ |
|
7520 |
void |
|
7521 |
rfs4_op_close(nfs_argop4 *argop, nfs_resop4 *resop, |
|
7522 |
struct svc_req *req, struct compound_state *cs) |
|
7523 |
{
|
|
7524 |
/* XXX Currently not using req arg */ |
|
7525 |
CLOSE4args *args = &argop->nfs_argop4_u.opclose; |
|
7526 |
CLOSE4res *resp = &resop->nfs_resop4_u.opclose; |
|
7527 |
rfs4_state_t *sp; |
|
7528 |
nfsstat4 status; |
|
7529 |
||
7530 |
if (cs->vp == NULL) {
|
|
7531 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
7532 |
return; |
|
7533 |
} |
|
7534 |
||
7535 |
status = rfs4_get_state(&args->open_stateid, &sp, RFS4_DBS_INVALID); |
|
7536 |
if (status != NFS4_OK) {
|
|
7537 |
*cs->statusp = resp->status = status; |
|
7538 |
return; |
|
7539 |
} |
|
7540 |
||
7541 |
/* Ensure specified filehandle matches */ |
|
7542 |
if (cs->vp != sp->finfo->vp) {
|
|
7543 |
rfs4_state_rele(sp); |
|
7544 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
7545 |
return; |
|
7546 |
} |
|
7547 |
||
7548 |
/* hold off other access to open_owner while we tinker */ |
|
7549 |
rfs4_sw_enter(&sp->owner->oo_sw); |
|
7550 |
||
7551 |
switch (rfs4_check_stateid_seqid(sp, &args->open_stateid)) {
|
|
7552 |
case NFS4_CHECK_STATEID_OKAY: |
|
7553 |
if (rfs4_check_open_seqid(args->seqid, sp->owner, |
|
7554 |
resop) != NFS4_CHKSEQ_OKAY) {
|
|
7555 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
7556 |
goto end; |
|
7557 |
} |
|
7558 |
break; |
|
7559 |
case NFS4_CHECK_STATEID_OLD: |
|
7560 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
7561 |
goto end; |
|
7562 |
case NFS4_CHECK_STATEID_BAD: |
|
7563 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
7564 |
goto end; |
|
7565 |
case NFS4_CHECK_STATEID_EXPIRED: |
|
7566 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
7567 |
goto end; |
|
7568 |
case NFS4_CHECK_STATEID_CLOSED: |
|
7569 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
7570 |
goto end; |
|
7571 |
case NFS4_CHECK_STATEID_UNCONFIRMED: |
|
7572 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
7573 |
goto end; |
|
7574 |
case NFS4_CHECK_STATEID_REPLAY: |
|
7575 |
/* Check the sequence id for the open owner */ |
|
7576 |
switch (rfs4_check_open_seqid(args->seqid, sp->owner, resop)) {
|
|
7577 |
case NFS4_CHKSEQ_OKAY: |
|
7578 |
/* |
|
7579 |
* This is replayed stateid; if seqid matches |
|
7580 |
* next expected, then client is using wrong seqid. |
|
7581 |
*/ |
|
7582 |
/* FALL THROUGH */ |
|
7583 |
case NFS4_CHKSEQ_BAD: |
|
7584 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
7585 |
goto end; |
|
7586 |
case NFS4_CHKSEQ_REPLAY: |
|
7587 |
/* |
|
7588 |
* Note this case is the duplicate case so |
|
7589 |
* resp->status is already set. |
|
7590 |
*/ |
|
7591 |
*cs->statusp = resp->status; |
|
7592 |
rfs4_update_lease(sp->owner->client); |
|
7593 |
goto end; |
|
7594 |
} |
|
7595 |
break; |
|
7596 |
default: |
|
7597 |
ASSERT(FALSE); |
|
7598 |
break; |
|
7599 |
} |
|
7600 |
||
7601 |
rfs4_dbe_lock(sp->dbe); |
|
7602 |
||
7603 |
/* Update the stateid. */ |
|
7604 |
next_stateid(&sp->stateid); |
|
7605 |
resp->open_stateid = sp->stateid.stateid; |
|
7606 |
||
7607 |
rfs4_dbe_unlock(sp->dbe); |
|
7608 |
||
7609 |
rfs4_update_lease(sp->owner->client); |
|
7610 |
rfs4_update_open_sequence(sp->owner); |
|
7611 |
rfs4_update_open_resp(sp->owner, resop, NULL); |
|
7612 |
||
7613 |
rfs4_state_close(sp, FALSE, FALSE, cs->cr); |
|
7614 |
||
7615 |
*cs->statusp = resp->status = status; |
|
7616 |
||
7617 |
end: |
|
7618 |
rfs4_sw_exit(&sp->owner->oo_sw); |
|
7619 |
rfs4_state_rele(sp); |
|
7620 |
} |
|
7621 |
||
7622 |
/* |
|
7623 |
* Manage the counts on the file struct and close all file locks |
|
7624 |
*/ |
|
7625 |
/*ARGSUSED*/ |
|
7626 |
void |
|
7627 |
rfs4_release_share_lock_state(rfs4_state_t *sp, cred_t *cr, |
|
7628 |
bool_t close_of_client) |
|
7629 |
{
|
|
7630 |
rfs4_file_t *fp = sp->finfo; |
|
7631 |
rfs4_lo_state_t *lsp; |
|
7632 |
struct shrlock shr; |
|
7633 |
struct shr_locowner shr_loco; |
|
7634 |
int fflags, s_access, s_deny; |
|
7635 |
||
7636 |
fflags = s_access = s_deny = 0; |
|
7637 |
/* |
|
7638 |
* Decrement the count for each access and deny bit that this |
|
7639 |
* state has contributed to the file. If the file counts go to zero |
|
7640 |
* clear the appropriate bit in the appropriate mask. |
|
7641 |
*/ |
|
7642 |
||
7643 |
if (sp->share_access & OPEN4_SHARE_ACCESS_READ) {
|
|
7644 |
fp->access_read--; |
|
7645 |
fflags |= FREAD; |
|
7646 |
s_access |= F_RDACC; |
|
7647 |
if (fp->access_read == 0) |
|
7648 |
fp->share_access &= ~OPEN4_SHARE_ACCESS_READ; |
|
7649 |
} |
|
7650 |
if (sp->share_access & OPEN4_SHARE_ACCESS_WRITE) {
|
|
7651 |
fp->access_write--; |
|
7652 |
fflags |= FWRITE; |
|
7653 |
s_access |= F_WRACC; |
|
7654 |
if (fp->access_write == 0) |
|
7655 |
fp->share_access &= ~OPEN4_SHARE_ACCESS_WRITE; |
|
7656 |
} |
|
7657 |
if (sp->share_deny & OPEN4_SHARE_DENY_READ) {
|
|
7658 |
fp->deny_read--; |
|
7659 |
s_deny |= F_RDDNY; |
|
7660 |
if (fp->deny_read == 0) |
|
7661 |
fp->share_deny &= ~OPEN4_SHARE_DENY_READ; |
|
7662 |
} |
|
7663 |
if (sp->share_deny & OPEN4_SHARE_DENY_WRITE) {
|
|
7664 |
fp->deny_write--; |
|
7665 |
s_deny |= F_WRDNY; |
|
7666 |
if (fp->deny_write == 0) |
|
7667 |
fp->share_deny &= ~OPEN4_SHARE_DENY_WRITE; |
|
7668 |
} |
|
7669 |
||
7670 |
/* |
|
7671 |
* If this call is part of the larger closing down of client |
|
7672 |
* state then it is just easier to release all locks |
|
7673 |
* associated with this client instead of going through each |
|
7674 |
* individual file and cleaning locks there. |
|
7675 |
*/ |
|
7676 |
if (close_of_client) {
|
|
7677 |
if (sp->owner->client->unlksys_completed == FALSE && |
|
7678 |
sp->lockownerlist.next->lsp != NULL && |
|
7679 |
sp->owner->client->sysidt != LM_NOSYSID) {
|
|
7680 |
/* Is the PxFS kernel module loaded? */ |
|
7681 |
if (lm_remove_file_locks != NULL) {
|
|
7682 |
int new_sysid; |
|
7683 |
||
7684 |
/* Encode the cluster nodeid in new sysid */ |
|
7685 |
new_sysid = sp->owner->client->sysidt; |
|
7686 |
lm_set_nlmid_flk(&new_sysid); |
|
7687 |
||
7688 |
/* |
|
7689 |
* This PxFS routine removes file locks for a |
|
7690 |
* client over all nodes of a cluster. |
|
7691 |
*/ |
|
7692 |
NFS4_DEBUG(rfs4_debug, (CE_NOTE, |
|
7693 |
"lm_remove_file_locks(sysid=0x%x)\n", |
|
7694 |
new_sysid)); |
|
7695 |
(*lm_remove_file_locks)(new_sysid); |
|
7696 |
} else {
|
|
7697 |
struct flock64 flk; |
|
7698 |
||
7699 |
/* Release all locks for this client */ |
|
7700 |
flk.l_type = F_UNLKSYS; |
|
7701 |
flk.l_whence = 0; |
|
7702 |
flk.l_start = 0; |
|
7703 |
flk.l_len = 0; |
|
7704 |
flk.l_sysid = sp->owner->client->sysidt; |
|
7705 |
flk.l_pid = 0; |
|
7706 |
(void) VOP_FRLOCK(sp->finfo->vp, F_SETLK, &flk, |
|
7707 |
F_REMOTELOCK | FREAD | FWRITE, |
|
7708 |
(u_offset_t)0, NULL, CRED()); |
|
7709 |
} |
|
7710 |
||
7711 |
sp->owner->client->unlksys_completed = TRUE; |
|
7712 |
} |
|
7713 |
} |
|
7714 |
||
7715 |
/* |
|
7716 |
* Release all locks on this file by this lock owner or at |
|
7717 |
* least mark the locks as having been released |
|
7718 |
*/ |
|
7719 |
for (lsp = sp->lockownerlist.next->lsp; lsp != NULL; |
|
7720 |
lsp = lsp->lockownerlist.next->lsp) {
|
|
7721 |
||
7722 |
lsp->locks_cleaned = TRUE; |
|
7723 |
||
7724 |
/* Was this already taken care of above? */ |
|
7725 |
if (!close_of_client && |
|
7726 |
sp->owner->client->sysidt != LM_NOSYSID) |
|
7727 |
(void) cleanlocks(sp->finfo->vp, lsp->locker->pid, |
|
7728 |
lsp->locker->client->sysidt); |
|
7729 |
} |
|
7730 |
||
7731 |
/* |
|
7732 |
* Release any shrlocks associated with this open state ID. |
|
7733 |
* This must be done before the rfs4_state gets marked closed. |
|
7734 |
*/ |
|
7735 |
if (sp->owner->client->sysidt != LM_NOSYSID) {
|
|
7736 |
shr.s_access = s_access; |
|
7737 |
shr.s_deny = s_deny; |
|
7738 |
shr.s_pid = rfs4_dbe_getid(sp->owner->dbe); |
|
7739 |
shr.s_sysid = sp->owner->client->sysidt; |
|
7740 |
shr_loco.sl_pid = shr.s_pid; |
|
7741 |
shr_loco.sl_id = shr.s_sysid; |
|
7742 |
shr.s_owner = (caddr_t)&shr_loco; |
|
7743 |
shr.s_own_len = sizeof (shr_loco); |
|
7744 |
(void) vop_shrlock(sp->finfo->vp, F_UNSHARE, &shr, fflags); |
|
7745 |
} |
|
7746 |
} |
|
7747 |
||
7748 |
/* |
|
7749 |
* lock_denied: Fill in a LOCK4deneid structure given an flock64 structure. |
|
7750 |
*/ |
|
7751 |
static nfsstat4 |
|
7752 |
lock_denied(LOCK4denied *dp, struct flock64 *flk) |
|
7753 |
{
|
|
7754 |
rfs4_lockowner_t *lo; |
|
7755 |
rfs4_client_t *cp; |
|
7756 |
uint32_t len; |
|
7757 |
||
7758 |
lo = rfs4_findlockowner_by_pid(flk->l_pid); |
|
7759 |
if (lo != NULL) {
|
|
7760 |
cp = lo->client; |
|
7761 |
if (rfs4_lease_expired(cp)) {
|
|
7762 |
rfs4_lockowner_rele(lo); |
|
7763 |
rfs4_dbe_hold(cp->dbe); |
|
7764 |
rfs4_client_close(cp); |
|
7765 |
return (NFS4ERR_EXPIRED); |
|
7766 |
} |
|
7767 |
dp->owner.clientid = lo->owner.clientid; |
|
7768 |
len = lo->owner.owner_len; |
|
7769 |
dp->owner.owner_val = kmem_alloc(len, KM_SLEEP); |
|
7770 |
bcopy(lo->owner.owner_val, dp->owner.owner_val, len); |
|
7771 |
dp->owner.owner_len = len; |
|
7772 |
rfs4_lockowner_rele(lo); |
|
7773 |
goto finish; |
|
7774 |
} |
|
7775 |
||
7776 |
/* |
|
7777 |
* Its not a NFS4 lock. We take advantage that the upper 32 bits |
|
7778 |
* of the client id contain the boot time for a NFS4 lock. So we |
|
7779 |
* fabricate and identity by setting clientid to the sysid, and |
|
7780 |
* the lock owner to the pid. |
|
7781 |
*/ |
|
7782 |
dp->owner.clientid = flk->l_sysid; |
|
7783 |
len = sizeof (pid_t); |
|
7784 |
dp->owner.owner_len = len; |
|
7785 |
dp->owner.owner_val = kmem_alloc(len, KM_SLEEP); |
|
7786 |
bcopy(&flk->l_pid, dp->owner.owner_val, len); |
|
7787 |
finish: |
|
7788 |
dp->offset = flk->l_start; |
|
7789 |
dp->length = flk->l_len; |
|
7790 |
||
7791 |
if (flk->l_type == F_RDLCK) |
|
7792 |
dp->locktype = READ_LT; |
|
7793 |
else if (flk->l_type == F_WRLCK) |
|
7794 |
dp->locktype = WRITE_LT; |
|
7795 |
else |
|
7796 |
return (NFS4ERR_INVAL); /* no mapping from POSIX ltype to v4 */ |
|
7797 |
||
7798 |
return (NFS4_OK); |
|
7799 |
} |
|
7800 |
||
7801 |
static int |
|
7802 |
setlock(vnode_t *vp, struct flock64 *flock, int flag, cred_t *cred) |
|
7803 |
{
|
|
7804 |
int error; |
|
7805 |
struct flock64 flk; |
|
7806 |
int i; |
|
7807 |
clock_t delaytime; |
|
7808 |
||
7809 |
retry: |
|
7810 |
delaytime = MSEC_TO_TICK_ROUNDUP(rfs4_lock_delay); |
|
7811 |
||
7812 |
for (i = 0; i < rfs4_maxlock_tries; i++) {
|
|
7813 |
LOCK_PRINT(rfs4_debug, "setlock", F_SETLK, flock); |
|
7814 |
error = VOP_FRLOCK(vp, F_SETLK, |
|
7815 |
flock, flag, (u_offset_t)0, NULL, cred); |
|
7816 |
||
7817 |
if (error != EAGAIN && error != EACCES) |
|
7818 |
break; |
|
7819 |
||
7820 |
if (i < rfs4_maxlock_tries - 1) {
|
|
7821 |
delay(delaytime); |
|
7822 |
delaytime *= 2; |
|
7823 |
} |
|
7824 |
} |
|
7825 |
||
7826 |
if (error == EAGAIN || error == EACCES) {
|
|
7827 |
/* Get the owner of the lock */ |
|
7828 |
flk = *flock; |
|
7829 |
LOCK_PRINT(rfs4_debug, "setlock", F_GETLK, &flk); |
|
7830 |
if (VOP_FRLOCK(vp, F_GETLK, |
|
7831 |
&flk, flag, (u_offset_t)0, NULL, cred) == 0) {
|
|
7832 |
if (flk.l_type == F_UNLCK) {
|
|
7833 |
/* No longer locked, retry */ |
|
7834 |
goto retry; |
|
7835 |
} |
|
7836 |
*flock = flk; |
|
7837 |
LOCK_PRINT(rfs4_debug, "setlock(blocking lock)", |
|
7838 |
F_GETLK, &flk); |
|
7839 |
} |
|
7840 |
} |
|
7841 |
||
7842 |
return (error); |
|
7843 |
} |
|
7844 |
||
7845 |
/*ARGSUSED*/ |
|
7846 |
static nfsstat4 |
|
7847 |
rfs4_do_lock(rfs4_lo_state_t *lp, nfs_lock_type4 locktype, |
|
7848 |
seqid4 seqid, offset4 offset, |
|
7849 |
length4 length, cred_t *cred, nfs_resop4 *resop) |
|
7850 |
{
|
|
7851 |
nfsstat4 status; |
|
7852 |
rfs4_lockowner_t *lo = lp->locker; |
|
7853 |
rfs4_state_t *sp = lp->state; |
|
7854 |
struct flock64 flock; |
|
7855 |
int16_t ltype; |
|
7856 |
int flag; |
|
7857 |
int error; |
|
7858 |
sysid_t sysid; |
|
7859 |
LOCK4res *lres; |
|
7860 |
||
7861 |
if (rfs4_lease_expired(lo->client)) {
|
|
7862 |
return (NFS4ERR_EXPIRED); |
|
7863 |
} |
|
7864 |
||
7865 |
if ((status = rfs4_client_sysid(lo->client, &sysid)) != NFS4_OK) |
|
7866 |
return (status); |
|
7867 |
||
7868 |
/* Check for zero length. To lock to end of file use all ones for V4 */ |
|
7869 |
if (length == 0) |
|
7870 |
return (NFS4ERR_INVAL); |
|
7871 |
else if (length == (length4)(~0)) |
|
7872 |
length = 0; /* Posix to end of file */ |
|
7873 |
||
7874 |
retry: |
|
7875 |
rfs4_dbe_lock(sp->dbe); |
|
7876 |
||
7877 |
||
7878 |
if (resop->resop != OP_LOCKU) {
|
|
7879 |
switch (locktype) {
|
|
7880 |
case READ_LT: |
|
7881 |
case READW_LT: |
|
7882 |
if ((sp->share_access |
|
7883 |
& OPEN4_SHARE_ACCESS_READ) == 0) {
|
|
7884 |
rfs4_dbe_unlock(sp->dbe); |
|
7885 |
||
7886 |
return (NFS4ERR_OPENMODE); |
|
7887 |
} |
|
7888 |
ltype = F_RDLCK; |
|
7889 |
break; |
|
7890 |
case WRITE_LT: |
|
7891 |
case WRITEW_LT: |
|
7892 |
if ((sp->share_access |
|
7893 |
& OPEN4_SHARE_ACCESS_WRITE) == 0) {
|
|
7894 |
rfs4_dbe_unlock(sp->dbe); |
|
7895 |
||
7896 |
return (NFS4ERR_OPENMODE); |
|
7897 |
} |
|
7898 |
ltype = F_WRLCK; |
|
7899 |
break; |
|
7900 |
} |
|
7901 |
} else |
|
7902 |
ltype = F_UNLCK; |
|
7903 |
||
7904 |
flock.l_type = ltype; |
|
7905 |
flock.l_whence = 0; /* SEEK_SET */ |
|
7906 |
flock.l_start = offset; |
|
7907 |
flock.l_len = length; |
|
7908 |
flock.l_sysid = sysid; |
|
7909 |
flock.l_pid = lp->locker->pid; |
|
7910 |
||
7911 |
/* Note that length4 is uint64_t but l_len and l_start are off64_t */ |
|
7912 |
if (flock.l_len < 0 || flock.l_start < 0) {
|
|
7913 |
rfs4_dbe_unlock(sp->dbe); |
|
7914 |
return (NFS4ERR_INVAL); |
|
7915 |
} |
|
7916 |
||
7917 |
/* |
|
7918 |
* N.B. FREAD has the same value as OPEN4_SHARE_ACCESS_READ and |
|
7919 |
* FWRITE has the same value as OPEN4_SHARE_ACCESS_WRITE. |
|
7920 |
*/ |
|
7921 |
flag = (int)sp->share_access | F_REMOTELOCK; |
|
7922 |
||
7923 |
error = setlock(sp->finfo->vp, &flock, flag, cred); |
|
7924 |
if (error == 0) {
|
|
7925 |
rfs4_dbe_lock(lp->dbe); |
|
7926 |
next_stateid(&lp->lockid); |
|
7927 |
rfs4_dbe_unlock(lp->dbe); |
|
7928 |
} |
|
7929 |
||
7930 |
rfs4_dbe_unlock(sp->dbe); |
|
7931 |
||
7932 |
/* |
|
7933 |
* N.B. We map error values to nfsv4 errors. This is differrent |
|
7934 |
* than puterrno4 routine. |
|
7935 |
*/ |
|
7936 |
switch (error) {
|
|
7937 |
case 0: |
|
7938 |
status = NFS4_OK; |
|
7939 |
break; |
|
7940 |
case EAGAIN: |
|
7941 |
case EACCES: /* Old value */ |
|
7942 |
/* Can only get here if op is OP_LOCK */ |
|
7943 |
ASSERT(resop->resop == OP_LOCK); |
|
7944 |
lres = &resop->nfs_resop4_u.oplock; |
|
7945 |
status = NFS4ERR_DENIED; |
|
7946 |
if (lock_denied(&lres->LOCK4res_u.denied, &flock) |
|
7947 |
== NFS4ERR_EXPIRED) |
|
7948 |
goto retry; |
|
7949 |
break; |
|
7950 |
case ENOLCK: |
|
7951 |
status = NFS4ERR_DELAY; |
|
7952 |
break; |
|
7953 |
case EOVERFLOW: |
|
7954 |
status = NFS4ERR_INVAL; |
|
7955 |
break; |
|
7956 |
case EINVAL: |
|
7957 |
status = NFS4ERR_NOTSUPP; |
|
7958 |
break; |
|
7959 |
default: |
|
7960 |
cmn_err(CE_WARN, "rfs4_do_lock: unexpected errno (%d)", |
|
7961 |
error); |
|
7962 |
status = NFS4ERR_SERVERFAULT; |
|
7963 |
break; |
|
7964 |
} |
|
7965 |
||
7966 |
return (status); |
|
7967 |
} |
|
7968 |
||
7969 |
/*ARGSUSED*/ |
|
7970 |
void |
|
7971 |
rfs4_op_lock(nfs_argop4 *argop, nfs_resop4 *resop, |
|
7972 |
struct svc_req *req, struct compound_state *cs) |
|
7973 |
{
|
|
7974 |
/* XXX Currently not using req arg */ |
|
7975 |
LOCK4args *args = &argop->nfs_argop4_u.oplock; |
|
7976 |
LOCK4res *resp = &resop->nfs_resop4_u.oplock; |
|
7977 |
nfsstat4 status; |
|
7978 |
stateid4 *stateid; |
|
7979 |
rfs4_lockowner_t *lo; |
|
7980 |
rfs4_client_t *cp; |
|
7981 |
rfs4_state_t *sp = NULL; |
|
7982 |
rfs4_lo_state_t *lsp = NULL; |
|
7983 |
bool_t ls_sw_held = FALSE; |
|
7984 |
bool_t create = TRUE; |
|
7985 |
bool_t lcreate = TRUE; |
|
7986 |
bool_t dup_lock = FALSE; |
|
7987 |
int rc; |
|
7988 |
||
7989 |
if (cs->vp == NULL) {
|
|
7990 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
7991 |
return; |
|
7992 |
} |
|
7993 |
||
7994 |
if (args->locker.new_lock_owner) {
|
|
7995 |
/* Create a new lockowner for this instance */ |
|
7996 |
open_to_lock_owner4 *olo = &args->locker.locker4_u.open_owner; |
|
7997 |
||
7998 |
NFS4_DEBUG(rfs4_debug, (CE_NOTE, "Creating new lock owner")); |
|
7999 |
||
8000 |
stateid = &olo->open_stateid; |
|
8001 |
status = rfs4_get_state(stateid, &sp, RFS4_DBS_VALID); |
|
8002 |
if (status != NFS4_OK) {
|
|
8003 |
NFS4_DEBUG(rfs4_debug, |
|
8004 |
(CE_NOTE, "Get state failed in lock %d", |
|
8005 |
status)); |
|
8006 |
*cs->statusp = resp->status = status; |
|
8007 |
return; |
|
8008 |
} |
|
8009 |
||
8010 |
/* Ensure specified filehandle matches */ |
|
8011 |
if (cs->vp != sp->finfo->vp) {
|
|
8012 |
rfs4_state_rele(sp); |
|
8013 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
8014 |
return; |
|
8015 |
} |
|
8016 |
||
8017 |
/* hold off other access to open_owner while we tinker */ |
|
8018 |
rfs4_sw_enter(&sp->owner->oo_sw); |
|
8019 |
||
8020 |
switch (rc = rfs4_check_stateid_seqid(sp, stateid)) {
|
|
8021 |
case NFS4_CHECK_STATEID_OLD: |
|
8022 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
8023 |
goto end; |
|
8024 |
case NFS4_CHECK_STATEID_BAD: |
|
8025 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
8026 |
goto end; |
|
8027 |
case NFS4_CHECK_STATEID_EXPIRED: |
|
8028 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
8029 |
goto end; |
|
8030 |
case NFS4_CHECK_STATEID_UNCONFIRMED: |
|
8031 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
8032 |
goto end; |
|
8033 |
case NFS4_CHECK_STATEID_CLOSED: |
|
8034 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
8035 |
goto end; |
|
8036 |
case NFS4_CHECK_STATEID_OKAY: |
|
8037 |
case NFS4_CHECK_STATEID_REPLAY: |
|
8038 |
switch (rfs4_check_olo_seqid(olo->open_seqid, |
|
8039 |
sp->owner, resop)) {
|
|
8040 |
case NFS4_CHKSEQ_OKAY: |
|
8041 |
if (rc == NFS4_CHECK_STATEID_OKAY) |
|
8042 |
break; |
|
8043 |
/* |
|
8044 |
* This is replayed stateid; if seqid |
|
8045 |
* matches next expected, then client |
|
8046 |
* is using wrong seqid. |
|
8047 |
*/ |
|
8048 |
/* FALLTHROUGH */ |
|
8049 |
case NFS4_CHKSEQ_BAD: |
|
8050 |
*cs->statusp = resp->status = |
|
8051 |
NFS4ERR_BAD_SEQID; |
|
8052 |
goto end; |
|
8053 |
case NFS4_CHKSEQ_REPLAY: |
|
8054 |
/* This is a duplicate LOCK request */ |
|
8055 |
dup_lock = TRUE; |
|
8056 |
||
8057 |
/* |
|
8058 |
* For a duplicate we do not want to |
|
8059 |
* create a new lockowner as it should |
|
8060 |
* already exist. |
|
8061 |
* Turn off the lockowner create flag. |
|
8062 |
*/ |
|
8063 |
lcreate = FALSE; |
|
8064 |
} |
|
8065 |
break; |
|
8066 |
} |
|
8067 |
||
8068 |
lo = rfs4_findlockowner(&olo->lock_owner, &lcreate); |
|
8069 |
if (lo == NULL) {
|
|
8070 |
NFS4_DEBUG(rfs4_debug, |
|
8071 |
(CE_NOTE, "rfs4_op_lock: no lock owner")); |
|
8072 |
*cs->statusp = resp->status = NFS4ERR_RESOURCE; |
|
8073 |
goto end; |
|
8074 |
} |
|
8075 |
||
8076 |
lsp = rfs4_findlo_state_by_owner(lo, sp, &create); |
|
8077 |
if (lsp == NULL) {
|
|
8078 |
rfs4_update_lease(sp->owner->client); |
|
8079 |
/* |
|
8080 |
* Only update theh open_seqid if this is not |
|
8081 |
* a duplicate request |
|
8082 |
*/ |
|
8083 |
if (dup_lock == FALSE) {
|
|
8084 |
rfs4_update_open_sequence(sp->owner); |
|
8085 |
} |
|
8086 |
||
8087 |
NFS4_DEBUG(rfs4_debug, |
|
8088 |
(CE_NOTE, "rfs4_op_lock: no state")); |
|
8089 |
*cs->statusp = resp->status = NFS4ERR_SERVERFAULT; |
|
8090 |
rfs4_update_open_resp(sp->owner, resop, NULL); |
|
8091 |
rfs4_lockowner_rele(lo); |
|
8092 |
goto end; |
|
8093 |
} |
|
8094 |
||
8095 |
/* |
|
8096 |
* This is the new_lock_owner branch and the client is |
|
8097 |
* supposed to be associating a new lock_owner with |
|
8098 |
* the open file at this point. If we find that a |
|
8099 |
* lock_owner/state association already exists and a |
|
8100 |
* successful LOCK request was returned to the client, |
|
8101 |
* an error is returned to the client since this is |
|
8102 |
* not appropriate. The client should be using the |
|
8103 |
* existing lock_owner branch. |
|
8104 |
*/ |
|
8105 |
if (dup_lock == FALSE && create == FALSE) {
|
|
8106 |
if (lsp->lock_completed == TRUE) {
|
|
8107 |
*cs->statusp = |
|
8108 |
resp->status = NFS4ERR_BAD_SEQID; |
|
8109 |
rfs4_lockowner_rele(lo); |
|
8110 |
goto end; |
|
8111 |
} |
|
8112 |
} |
|
8113 |
||
8114 |
rfs4_update_lease(sp->owner->client); |
|
8115 |
||
8116 |
/* |
|
8117 |
* Only update theh open_seqid if this is not |
|
8118 |
* a duplicate request |
|
8119 |
*/ |
|
8120 |
if (dup_lock == FALSE) {
|
|
8121 |
rfs4_update_open_sequence(sp->owner); |
|
8122 |
} |
|
8123 |
||
8124 |
/* |
|
8125 |
* If this is a duplicate lock request, just copy the |
|
8126 |
* previously saved reply and return. |
|
8127 |
*/ |
|
8128 |
if (dup_lock == TRUE) {
|
|
8129 |
/* verify that lock_seqid's match */ |
|
8130 |
if (lsp->seqid != olo->lock_seqid) {
|
|
8131 |
NFS4_DEBUG(rfs4_debug, |
|
8132 |
(CE_NOTE, "rfs4_op_lock: Dup-Lock seqid bad" |
|
8133 |
"lsp->seqid=%d old->seqid=%d", |
|
8134 |
lsp->seqid, olo->lock_seqid)); |
|
8135 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
8136 |
} else {
|
|
8137 |
rfs4_copy_reply(resop, lsp->reply); |
|
8138 |
/* |
|
8139 |
* Make sure to copy the just |
|
8140 |
* retrieved reply status into the |
|
8141 |
* overall compound status |
|
8142 |
*/ |
|
8143 |
*cs->statusp = resp->status; |
|
8144 |
} |
|
8145 |
rfs4_lockowner_rele(lo); |
|
8146 |
goto end; |
|
8147 |
} |
|
8148 |
||
8149 |
rfs4_dbe_lock(lsp->dbe); |
|
8150 |
||
8151 |
/* Make sure to update the lock sequence id */ |
|
8152 |
lsp->seqid = olo->lock_seqid; |
|
8153 |
||
8154 |
NFS4_DEBUG(rfs4_debug, |
|
8155 |
(CE_NOTE, "Lock seqid established as %d", lsp->seqid)); |
|
8156 |
||
8157 |
/* |
|
8158 |
* This is used to signify the newly created lockowner |
|
8159 |
* stateid and its sequence number. The checks for |
|
8160 |
* sequence number and increment don't occur on the |
|
8161 |
* very first lock request for a lockowner. |
|
8162 |
*/ |
|
8163 |
lsp->skip_seqid_check = TRUE; |
|
8164 |
||
8165 |
/* hold off other access to lsp while we tinker */ |
|
8166 |
rfs4_sw_enter(&lsp->ls_sw); |
|
8167 |
ls_sw_held = TRUE; |
|
8168 |
||
8169 |
rfs4_dbe_unlock(lsp->dbe); |
|
8170 |
||
8171 |
rfs4_lockowner_rele(lo); |
|
8172 |
} else {
|
|
8173 |
stateid = &args->locker.locker4_u.lock_owner.lock_stateid; |
|
8174 |
/* get lsp and hold the lock on the underlying file struct */ |
|
8175 |
if ((status = rfs4_get_lo_state(stateid, &lsp, TRUE)) |
|
8176 |
!= NFS4_OK) {
|
|
8177 |
*cs->statusp = resp->status = status; |
|
8178 |
return; |
|
8179 |
} |
|
8180 |
create = FALSE; /* We didn't create lsp */ |
|
8181 |
||
8182 |
/* Ensure specified filehandle matches */ |
|
8183 |
if (cs->vp != lsp->state->finfo->vp) {
|
|
8184 |
rfs4_lo_state_rele(lsp, TRUE); |
|
8185 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
8186 |
return; |
|
8187 |
} |
|
8188 |
||
8189 |
/* hold off other access to lsp while we tinker */ |
|
8190 |
rfs4_sw_enter(&lsp->ls_sw); |
|
8191 |
ls_sw_held = TRUE; |
|
8192 |
||
8193 |
switch (rfs4_check_lo_stateid_seqid(lsp, stateid)) {
|
|
8194 |
/* |
|
8195 |
* The stateid looks like it was okay (expected to be |
|
8196 |
* the next one) |
|
8197 |
*/ |
|
8198 |
case NFS4_CHECK_STATEID_OKAY: |
|
8199 |
/* |
|
8200 |
* The sequence id is now checked. Determine |
|
8201 |
* if this is a replay or if it is in the |
|
8202 |
* expected (next) sequence. In the case of a |
|
8203 |
* replay, there are two replay conditions |
|
8204 |
* that may occur. The first is the normal |
|
8205 |
* condition where a LOCK is done with a |
|
8206 |
* NFS4_OK response and the stateid is |
|
8207 |
* updated. That case is handled below when |
|
8208 |
* the stateid is identified as a REPLAY. The |
|
8209 |
* second is the case where an error is |
|
8210 |
* returned, like NFS4ERR_DENIED, and the |
|
8211 |
* sequence number is updated but the stateid |
|
8212 |
* is not updated. This second case is dealt |
|
8213 |
* with here. So it may seem odd that the |
|
8214 |
* stateid is okay but the sequence id is a |
|
8215 |
* replay but it is okay. |
|
8216 |
*/ |
|
8217 |
switch (rfs4_check_lock_seqid( |
|
8218 |
args->locker.locker4_u.lock_owner.lock_seqid, |
|
8219 |
lsp, resop)) {
|
|
8220 |
case NFS4_CHKSEQ_REPLAY: |
|
8221 |
if (resp->status != NFS4_OK) {
|
|
8222 |
/* |
|
8223 |
* Here is our replay and need |
|
8224 |
* to verify that the last |
|
8225 |
* response was an error. |
|
8226 |
*/ |
|
8227 |
*cs->statusp = resp->status; |
|
8228 |
goto end; |
|
8229 |
} |
|
8230 |
/* |
|
8231 |
* This is done since the sequence id |
|
8232 |
* looked like a replay but it didn't |
|
8233 |
* pass our check so a BAD_SEQID is |
|
8234 |
* returned as a result. |
|
8235 |
*/ |
|
8236 |
/*FALLTHROUGH*/ |
|
8237 |
case NFS4_CHKSEQ_BAD: |
|
8238 |
*cs->statusp = resp->status = |
|
8239 |
NFS4ERR_BAD_SEQID; |
|
8240 |
goto end; |
|
8241 |
case NFS4_CHKSEQ_OKAY: |
|
8242 |
/* Everything looks okay move ahead */ |
|
8243 |
break; |
|
8244 |
} |
|
8245 |
break; |
|
8246 |
case NFS4_CHECK_STATEID_OLD: |
|
8247 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
8248 |
goto end; |
|
8249 |
case NFS4_CHECK_STATEID_BAD: |
|
8250 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
8251 |
goto end; |
|
8252 |
case NFS4_CHECK_STATEID_EXPIRED: |
|
8253 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
8254 |
goto end; |
|
8255 |
case NFS4_CHECK_STATEID_CLOSED: |
|
8256 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
8257 |
goto end; |
|
8258 |
case NFS4_CHECK_STATEID_REPLAY: |
|
8259 |
switch (rfs4_check_lock_seqid( |
|
8260 |
args->locker.locker4_u.lock_owner.lock_seqid, |
|
8261 |
lsp, resop)) {
|
|
8262 |
case NFS4_CHKSEQ_OKAY: |
|
8263 |
/* |
|
8264 |
* This is a replayed stateid; if |
|
8265 |
* seqid matches the next expected, |
|
8266 |
* then client is using wrong seqid. |
|
8267 |
*/ |
|
8268 |
case NFS4_CHKSEQ_BAD: |
|
8269 |
*cs->statusp = resp->status = |
|
8270 |
NFS4ERR_BAD_SEQID; |
|
8271 |
goto end; |
|
8272 |
case NFS4_CHKSEQ_REPLAY: |
|
8273 |
rfs4_update_lease(lsp->locker->client); |
|
8274 |
*cs->statusp = status = resp->status; |
|
8275 |
goto end; |
|
8276 |
} |
|
8277 |
break; |
|
8278 |
default: |
|
8279 |
ASSERT(FALSE); |
|
8280 |
break; |
|
8281 |
} |
|
8282 |
||
8283 |
rfs4_update_lock_sequence(lsp); |
|
8284 |
rfs4_update_lease(lsp->locker->client); |
|
8285 |
} |
|
8286 |
||
8287 |
/* |
|
8288 |
* NFS4 only allows locking on regular files, so |
|
8289 |
* verify type of object. |
|
8290 |
*/ |
|
8291 |
if (cs->vp->v_type != VREG) {
|
|
8292 |
if (cs->vp->v_type == VDIR) |
|
8293 |
status = NFS4ERR_ISDIR; |
|
8294 |
else |
|
8295 |
status = NFS4ERR_INVAL; |
|
8296 |
goto out; |
|
8297 |
} |
|
8298 |
||
8299 |
cp = lsp->state->owner->client; |
|
8300 |
||
8301 |
if (rfs4_clnt_in_grace(cp) && !args->reclaim) {
|
|
8302 |
status = NFS4ERR_GRACE; |
|
8303 |
goto out; |
|
8304 |
} |
|
8305 |
||
8306 |
if (rfs4_clnt_in_grace(cp) && args->reclaim && !cp->can_reclaim) {
|
|
8307 |
status = NFS4ERR_NO_GRACE; |
|
8308 |
goto out; |
|
8309 |
} |
|
8310 |
||
8311 |
if (!rfs4_clnt_in_grace(cp) && args->reclaim) {
|
|
8312 |
status = NFS4ERR_NO_GRACE; |
|
8313 |
goto out; |
|
8314 |
} |
|
8315 |
||
8316 |
if (lsp->state->finfo->dinfo->dtype == OPEN_DELEGATE_WRITE) |
|
8317 |
cs->deleg = TRUE; |
|
8318 |
||
8319 |
status = rfs4_do_lock(lsp, args->locktype, |
|
8320 |
args->locker.locker4_u.lock_owner.lock_seqid, |
|
8321 |
args->offset, |
|
8322 |
args->length, cs->cr, resop); |
|
8323 |
||
8324 |
out: |
|
8325 |
lsp->skip_seqid_check = FALSE; |
|
8326 |
||
8327 |
*cs->statusp = resp->status = status; |
|
8328 |
||
8329 |
if (status == NFS4_OK) {
|
|
8330 |
resp->LOCK4res_u.lock_stateid = lsp->lockid.stateid; |
|
8331 |
lsp->lock_completed = TRUE; |
|
8332 |
} |
|
8333 |
/* |
|
8334 |
* Only update the "OPEN" response here if this was a new |
|
8335 |
* lock_owner |
|
8336 |
*/ |
|
8337 |
if (sp) |
|
8338 |
rfs4_update_open_resp(sp->owner, resop, NULL); |
|
8339 |
||
8340 |
rfs4_update_lock_resp(lsp, resop); |
|
8341 |
||
8342 |
end: |
|
8343 |
if (lsp) {
|
|
8344 |
if (ls_sw_held) |
|
8345 |
rfs4_sw_exit(&lsp->ls_sw); |
|
8346 |
/* |
|
8347 |
* If an sp obtained, then the lsp does not represent |
|
8348 |
* a lock on the file struct. |
|
8349 |
*/ |
|
8350 |
if (sp != NULL) |
|
8351 |
rfs4_lo_state_rele(lsp, FALSE); |
|
8352 |
else |
|
8353 |
rfs4_lo_state_rele(lsp, TRUE); |
|
8354 |
} |
|
8355 |
if (sp) {
|
|
8356 |
rfs4_sw_exit(&sp->owner->oo_sw); |
|
8357 |
rfs4_state_rele(sp); |
|
8358 |
} |
|
8359 |
} |
|
8360 |
||
8361 |
/* free function for LOCK/LOCKT */ |
|
8362 |
static void |
|
8363 |
lock_denied_free(nfs_resop4 *resop) |
|
8364 |
{
|
|
8365 |
LOCK4denied *dp = NULL; |
|
8366 |
||
8367 |
switch (resop->resop) {
|
|
8368 |
case OP_LOCK: |
|
8369 |
if (resop->nfs_resop4_u.oplock.status == NFS4ERR_DENIED) |
|
8370 |
dp = &resop->nfs_resop4_u.oplock.LOCK4res_u.denied; |
|
8371 |
break; |
|
8372 |
case OP_LOCKT: |
|
8373 |
if (resop->nfs_resop4_u.oplockt.status == NFS4ERR_DENIED) |
|
8374 |
dp = &resop->nfs_resop4_u.oplockt.denied; |
|
8375 |
break; |
|
8376 |
default: |
|
8377 |
break; |
|
8378 |
} |
|
8379 |
||
8380 |
if (dp) |
|
8381 |
kmem_free(dp->owner.owner_val, dp->owner.owner_len); |
|
8382 |
} |
|
8383 |
||
8384 |
/*ARGSUSED*/ |
|
8385 |
void |
|
8386 |
rfs4_op_locku(nfs_argop4 *argop, nfs_resop4 *resop, |
|
8387 |
struct svc_req *req, struct compound_state *cs) |
|
8388 |
{
|
|
8389 |
/* XXX Currently not using req arg */ |
|
8390 |
LOCKU4args *args = &argop->nfs_argop4_u.oplocku; |
|
8391 |
LOCKU4res *resp = &resop->nfs_resop4_u.oplocku; |
|
8392 |
nfsstat4 status; |
|
8393 |
stateid4 *stateid = &args->lock_stateid; |
|
8394 |
rfs4_lo_state_t *lsp; |
|
8395 |
||
8396 |
if (cs->vp == NULL) {
|
|
8397 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
8398 |
return; |
|
8399 |
} |
|
8400 |
||
8401 |
if ((status = rfs4_get_lo_state(stateid, &lsp, TRUE)) != NFS4_OK) {
|
|
8402 |
*cs->statusp = resp->status = status; |
|
8403 |
return; |
|
8404 |
} |
|
8405 |
||
8406 |
/* Ensure specified filehandle matches */ |
|
8407 |
if (cs->vp != lsp->state->finfo->vp) {
|
|
8408 |
rfs4_lo_state_rele(lsp, TRUE); |
|
8409 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
8410 |
return; |
|
8411 |
} |
|
8412 |
||
8413 |
/* hold off other access to lsp while we tinker */ |
|
8414 |
rfs4_sw_enter(&lsp->ls_sw); |
|
8415 |
||
8416 |
switch (rfs4_check_lo_stateid_seqid(lsp, stateid)) {
|
|
8417 |
case NFS4_CHECK_STATEID_OKAY: |
|
8418 |
if (rfs4_check_lock_seqid(args->seqid, lsp, resop) |
|
8419 |
!= NFS4_CHKSEQ_OKAY) {
|
|
8420 |
*cs->statusp = resp->status = NFS4ERR_BAD_SEQID; |
|
8421 |
goto end; |
|
8422 |
} |
|
8423 |
break; |
|
8424 |
case NFS4_CHECK_STATEID_OLD: |
|
8425 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
8426 |
goto end; |
|
8427 |
case NFS4_CHECK_STATEID_BAD: |
|
8428 |
*cs->statusp = resp->status = NFS4ERR_BAD_STATEID; |
|
8429 |
goto end; |
|
8430 |
case NFS4_CHECK_STATEID_EXPIRED: |
|
8431 |
*cs->statusp = resp->status = NFS4ERR_EXPIRED; |
|
8432 |
goto end; |
|
8433 |
case NFS4_CHECK_STATEID_CLOSED: |
|
8434 |
*cs->statusp = resp->status = NFS4ERR_OLD_STATEID; |
|
8435 |
goto end; |
|
8436 |
case NFS4_CHECK_STATEID_REPLAY: |
|
8437 |
switch (rfs4_check_lock_seqid(args->seqid, lsp, resop)) {
|
|
8438 |
case NFS4_CHKSEQ_OKAY: |
|
8439 |
/* |
|
8440 |
* This is a replayed stateid; if |
|
8441 |
* seqid matches the next expected, |
|
8442 |
* then client is using wrong seqid. |
|
8443 |
*/ |
|
8444 |
case NFS4_CHKSEQ_BAD: |
|
8445 |
*cs->statusp = resp->status = |
|
8446 |
NFS4ERR_BAD_SEQID; |
|
8447 |
goto end; |
|
8448 |
case NFS4_CHKSEQ_REPLAY: |
|
8449 |
rfs4_update_lease(lsp->locker->client); |
|
8450 |
*cs->statusp = status = resp->status; |
|
8451 |
goto end; |
|
8452 |
} |
|
8453 |
break; |
|
8454 |
default: |
|
8455 |
ASSERT(FALSE); |
|
8456 |
break; |
|
8457 |
} |
|
8458 |
||
8459 |
rfs4_update_lock_sequence(lsp); |
|
8460 |
rfs4_update_lease(lsp->locker->client); |
|
8461 |
||
8462 |
/* |
|
8463 |
* NFS4 only allows locking on regular files, so |
|
8464 |
* verify type of object. |
|
8465 |
*/ |
|
8466 |
if (cs->vp->v_type != VREG) {
|
|
8467 |
if (cs->vp->v_type == VDIR) |
|
8468 |
status = NFS4ERR_ISDIR; |
|
8469 |
else |
|
8470 |
status = NFS4ERR_INVAL; |
|
8471 |
goto out; |
|
8472 |
} |
|
8473 |
||
8474 |
if (rfs4_clnt_in_grace(lsp->state->owner->client)) {
|
|
8475 |
status = NFS4ERR_GRACE; |
|
8476 |
goto out; |
|
8477 |
} |
|
8478 |
||
8479 |
status = rfs4_do_lock(lsp, args->locktype, |
|
8480 |
args->seqid, args->offset, |
|
8481 |
args->length, cs->cr, resop); |
|
8482 |
||
8483 |
out: |
|
8484 |
*cs->statusp = resp->status = status; |
|
8485 |
||
8486 |
if (status == NFS4_OK) |
|
8487 |
resp->lock_stateid = lsp->lockid.stateid; |
|
8488 |
||
8489 |
rfs4_update_lock_resp(lsp, resop); |
|
8490 |
||
8491 |
end: |
|
8492 |
rfs4_sw_exit(&lsp->ls_sw); |
|
8493 |
rfs4_lo_state_rele(lsp, TRUE); |
|
8494 |
} |
|
8495 |
||
8496 |
/* |
|
8497 |
* LOCKT is a best effort routine, the client can not be guaranteed that |
|
8498 |
* the status return is still in effect by the time the reply is received. |
|
8499 |
* They are numerous race conditions in this routine, but we are not required |
|
8500 |
* and can not be accurate. |
|
8501 |
*/ |
|
8502 |
/*ARGSUSED*/ |
|
8503 |
void |
|
8504 |
rfs4_op_lockt(nfs_argop4 *argop, nfs_resop4 *resop, |
|
8505 |
struct svc_req *req, struct compound_state *cs) |
|
8506 |
{
|
|
8507 |
LOCKT4args *args = &argop->nfs_argop4_u.oplockt; |
|
8508 |
LOCKT4res *resp = &resop->nfs_resop4_u.oplockt; |
|
8509 |
rfs4_lockowner_t *lo; |
|
8510 |
rfs4_client_t *cp; |
|
8511 |
bool_t create = FALSE; |
|
8512 |
struct flock64 flk; |
|
8513 |
int error; |
|
8514 |
int flag = FREAD | FWRITE; |
|
8515 |
int ltype; |
|
8516 |
length4 posix_length; |
|
8517 |
sysid_t sysid; |
|
8518 |
pid_t pid; |
|
8519 |
||
8520 |
if (cs->vp == NULL) {
|
|
8521 |
*cs->statusp = resp->status = NFS4ERR_NOFILEHANDLE; |
|
8522 |
return; |
|
8523 |
} |
|
8524 |
||
8525 |
/* |
|
8526 |
* NFS4 only allows locking on regular files, so |
|
8527 |
* verify type of object. |
|
8528 |
*/ |
|
8529 |
if (cs->vp->v_type != VREG) {
|
|
8530 |
if (cs->vp->v_type == VDIR) |
|
8531 |
*cs->statusp = resp->status = NFS4ERR_ISDIR; |
|
8532 |
else |
|
8533 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
8534 |
return; |
|
8535 |
} |
|
8536 |
||
8537 |
/* |
|
8538 |
* Check out the clientid to ensure the server knows about it |
|
8539 |
* so that we correctly inform the client of a server reboot. |
|
8540 |
*/ |
|
8541 |
if ((cp = rfs4_findclient_by_id(args->owner.clientid, FALSE)) |
|
8542 |
== NULL) {
|
|
8543 |
*cs->statusp = resp->status = |
|
8544 |
rfs4_check_clientid(&args->owner.clientid, 0); |
|
8545 |
return; |
|
8546 |
} |
|
8547 |
if (rfs4_lease_expired(cp)) {
|
|
8548 |
rfs4_client_close(cp); |
|
8549 |
/* |
|
8550 |
* Protocol doesn't allow returning NFS4ERR_STALE as |
|
8551 |
* other operations do on this check so STALE_CLIENTID |
|
8552 |
* is returned instead |
|
8553 |
*/ |
|
8554 |
*cs->statusp = resp->status = NFS4ERR_STALE_CLIENTID; |
|
8555 |
return; |
|
8556 |
} |
|
8557 |
||
8558 |
if (rfs4_clnt_in_grace(cp)) {
|
|
8559 |
*cs->statusp = resp->status = NFS4ERR_GRACE; |
|
8560 |
return; |
|
8561 |
} |
|
8562 |
rfs4_client_rele(cp); |
|
8563 |
||
8564 |
resp->status = NFS4_OK; |
|
8565 |
||
8566 |
switch (args->locktype) {
|
|
8567 |
case READ_LT: |
|
8568 |
case READW_LT: |
|
8569 |
ltype = F_RDLCK; |
|
8570 |
break; |
|
8571 |
case WRITE_LT: |
|
8572 |
case WRITEW_LT: |
|
8573 |
ltype = F_WRLCK; |
|
8574 |
break; |
|
8575 |
} |
|
8576 |
||
8577 |
posix_length = args->length; |
|
8578 |
/* Check for zero length. To lock to end of file use all ones for V4 */ |
|
8579 |
if (posix_length == 0) {
|
|
8580 |
*cs->statusp = resp->status = NFS4ERR_INVAL; |
|
8581 |
return; |
|
8582 |
} else if (posix_length == (length4)(~0)) {
|
|
8583 |
posix_length = 0; /* Posix to end of file */ |
|
8584 |
} |
|
8585 |
||
8586 |
/* Find or create a lockowner */ |
|
8587 |
lo = rfs4_findlockowner(&args->owner, &create); |
|
8588 |
||
8589 |
if (lo) {
|
|
8590 |
pid = lo->pid; |
|
8591 |
if ((resp->status = |
|
8592 |
rfs4_client_sysid(lo->client, &sysid)) != NFS4_OK) |
|
8593 |
goto out; |
|
8594 |
} else {
|
|
8595 |
pid = 0; |
|
8596 |
sysid = lockt_sysid; |
|
8597 |
} |
|
8598 |
retry: |
|
8599 |
flk.l_type = ltype; |
|
8600 |
flk.l_whence = 0; /* SEEK_SET */ |
|
8601 |
flk.l_start = args->offset; |
|
8602 |
flk.l_len = posix_length; |
|
8603 |
flk.l_sysid = sysid; |
|
8604 |
flk.l_pid = pid; |
|
8605 |
flag |= F_REMOTELOCK; |
|
8606 |
||
8607 |
LOCK_PRINT(rfs4_debug, "rfs4_op_lockt", F_GETLK, &flk); |
|
8608 |
||
8609 |
/* Note that length4 is uint64_t but l_len and l_start are off64_t */ |
|
8610 |
if (flk.l_len < 0 || flk.l_start < 0) {
|
|
8611 |
resp->status = NFS4ERR_INVAL; |
|
8612 |
goto out; |
|
8613 |
} |
|
8614 |
error = VOP_FRLOCK(cs->vp, F_GETLK, &flk, flag, (u_offset_t)0, |
|
8615 |
NULL, cs->cr); |
|
8616 |
||
8617 |
/* |
|
8618 |
* N.B. We map error values to nfsv4 errors. This is differrent |
|
8619 |
* than puterrno4 routine. |
|
8620 |
*/ |
|
8621 |
switch (error) {
|
|
8622 |
case 0: |
|
8623 |
if (flk.l_type == F_UNLCK) |
|
8624 |
resp->status = NFS4_OK; |
|
8625 |
else {
|
|
8626 |
if (lock_denied(&resp->denied, &flk) == NFS4ERR_EXPIRED) |
|
8627 |
goto retry; |
|
8628 |
resp->status = NFS4ERR_DENIED; |
|
8629 |
} |
|
8630 |
break; |
|
8631 |
case EOVERFLOW: |
|
8632 |
resp->status = NFS4ERR_INVAL; |
|
8633 |
break; |
|
8634 |
case EINVAL: |
|
8635 |
resp->status = NFS4ERR_NOTSUPP; |
|
8636 |
break; |
|
8637 |
default: |
|
8638 |
cmn_err(CE_WARN, "rfs4_op_lockt: unexpected errno (%d)", |
|
8639 |
error); |
|
8640 |
resp->status = NFS4ERR_SERVERFAULT; |
|
8641 |
break; |
|
8642 |
} |
|
8643 |
||
8644 |
out: |
|
8645 |
if (lo) |
|
8646 |
rfs4_lockowner_rele(lo); |
|
8647 |
*cs->statusp = resp->status; |
|
8648 |
} |
|
8649 |
||
8650 |
static int |
|
8651 |
vop_shrlock(vnode_t *vp, int cmd, struct shrlock *sp, int fflags) |
|
8652 |
{
|
|
8653 |
int err; |
|
8654 |
||
8655 |
if (cmd == F_UNSHARE && sp->s_deny == 0 && sp->s_access == 0) |
|
8656 |
return (0); |
|
8657 |
||
8658 |
err = VOP_SHRLOCK(vp, cmd, sp, fflags, CRED()); |
|
8659 |
||
8660 |
NFS4_DEBUG(rfs4_shrlock_debug, |
|
8661 |
(CE_NOTE, "rfs4_shrlock %s vp=%p acc=%d dny=%d sysid=%d " |
|
8662 |
"pid=%d err=%d\n", cmd == F_SHARE ? "SHARE" : "UNSHR", |
|
8663 |
(void *) vp, sp->s_access, sp->s_deny, sp->s_sysid, sp->s_pid, |
|
8664 |
err)); |
|
8665 |
||
8666 |
return (err); |
|
8667 |
} |
|
8668 |
||
8669 |
static int |
|
8670 |
rfs4_shrlock(rfs4_state_t *sp, int cmd) |
|
8671 |
{
|
|
8672 |
struct shrlock shr; |
|
8673 |
struct shr_locowner shr_loco; |
|
8674 |
int fflags; |
|
8675 |
||
8676 |
fflags = shr.s_access = shr.s_deny = 0; |
|
8677 |
||
8678 |
if (sp->share_access & OPEN4_SHARE_ACCESS_READ) {
|
|
8679 |
fflags |= FREAD; |
|
8680 |
shr.s_access |= F_RDACC; |
|
8681 |
} |
|
8682 |
if (sp->share_access & OPEN4_SHARE_ACCESS_WRITE) {
|
|
8683 |
fflags |= FWRITE; |
|
8684 |
shr.s_access |= F_WRACC; |
|
8685 |
} |
|
8686 |
if (sp->share_deny & OPEN4_SHARE_DENY_READ) |
|
8687 |
shr.s_deny |= F_RDDNY; |
|
8688 |
if (sp->share_deny & OPEN4_SHARE_DENY_WRITE) |
|
8689 |
shr.s_deny |= F_WRDNY; |
|
8690 |
||
8691 |
shr.s_pid = rfs4_dbe_getid(sp->owner->dbe); |
|
8692 |
shr.s_sysid = sp->owner->client->sysidt; |
|
8693 |
shr_loco.sl_pid = shr.s_pid; |
|
8694 |
shr_loco.sl_id = shr.s_sysid; |
|
8695 |
shr.s_owner = (caddr_t)&shr_loco; |
|
8696 |
shr.s_own_len = sizeof (shr_loco); |
|
8697 |
return (vop_shrlock(sp->finfo->vp, cmd, &shr, fflags)); |
|
8698 |
} |
|
8699 |
||
8700 |
static int |
|
8701 |
rfs4_share(rfs4_state_t *sp) |
|
8702 |
{
|
|
8703 |
return (rfs4_shrlock(sp, F_SHARE)); |
|
8704 |
} |
|
8705 |
||
8706 |
void |
|
8707 |
rfs4_unshare(rfs4_state_t *sp) |
|
8708 |
{
|
|
8709 |
(void) rfs4_shrlock(sp, F_UNSHARE); |
|
8710 |
} |