xref: /onnv-gate/usr/src/uts/common/fs/ctfs/ctfs_tdir.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <sys/types.h>
30*0Sstevel@tonic-gate #include <sys/param.h>
31*0Sstevel@tonic-gate #include <sys/time.h>
32*0Sstevel@tonic-gate #include <sys/cred.h>
33*0Sstevel@tonic-gate #include <sys/vfs.h>
34*0Sstevel@tonic-gate #include <sys/gfs.h>
35*0Sstevel@tonic-gate #include <sys/vnode.h>
36*0Sstevel@tonic-gate #include <sys/systm.h>
37*0Sstevel@tonic-gate #include <sys/errno.h>
38*0Sstevel@tonic-gate #include <sys/sysmacros.h>
39*0Sstevel@tonic-gate #include <fs/fs_subr.h>
40*0Sstevel@tonic-gate #include <sys/contract.h>
41*0Sstevel@tonic-gate #include <sys/contract_impl.h>
42*0Sstevel@tonic-gate #include <sys/ctfs.h>
43*0Sstevel@tonic-gate #include <sys/ctfs_impl.h>
44*0Sstevel@tonic-gate #include <sys/file.h>
45*0Sstevel@tonic-gate #include <sys/pathname.h>
46*0Sstevel@tonic-gate 
47*0Sstevel@tonic-gate /*
48*0Sstevel@tonic-gate  * Entries in a /system/contract/<type> directory.
49*0Sstevel@tonic-gate  */
50*0Sstevel@tonic-gate static gfs_dirent_t ctfs_tdir_dirents[] = {
51*0Sstevel@tonic-gate 	{ "bundle", ctfs_create_bundle },
52*0Sstevel@tonic-gate 	{ "pbundle", ctfs_create_pbundle },
53*0Sstevel@tonic-gate 	{ "template", ctfs_create_tmplnode },
54*0Sstevel@tonic-gate 	{ "latest", ctfs_create_latenode, GFS_CACHE_VNODE },
55*0Sstevel@tonic-gate 	{ NULL }
56*0Sstevel@tonic-gate };
57*0Sstevel@tonic-gate #define	CTFS_NSPECIALS	((sizeof ctfs_tdir_dirents / sizeof (gfs_dirent_t)) - 1)
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate static int ctfs_tdir_do_readdir(vnode_t *, struct dirent64 *, int *, offset_t *,
60*0Sstevel@tonic-gate     offset_t *, void *);
61*0Sstevel@tonic-gate static int ctfs_tdir_do_lookup(vnode_t *, const char *, vnode_t **, ino64_t *);
62*0Sstevel@tonic-gate static ino64_t ctfs_tdir_do_inode(vnode_t *, int);
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate /*
65*0Sstevel@tonic-gate  * ctfs_create_tdirnode
66*0Sstevel@tonic-gate  */
67*0Sstevel@tonic-gate vnode_t *
68*0Sstevel@tonic-gate ctfs_create_tdirnode(vnode_t *pvp)
69*0Sstevel@tonic-gate {
70*0Sstevel@tonic-gate 	return (gfs_dir_create(sizeof (ctfs_tdirnode_t), pvp, ctfs_ops_tdir,
71*0Sstevel@tonic-gate 	    ctfs_tdir_dirents, ctfs_tdir_do_inode, CTFS_NAME_MAX,
72*0Sstevel@tonic-gate 	    ctfs_tdir_do_readdir, ctfs_tdir_do_lookup));
73*0Sstevel@tonic-gate }
74*0Sstevel@tonic-gate 
75*0Sstevel@tonic-gate /*
76*0Sstevel@tonic-gate  * ctfs_tdir_getattr - VOP_GETATTR entry point
77*0Sstevel@tonic-gate  */
78*0Sstevel@tonic-gate /* ARGSUSED */
79*0Sstevel@tonic-gate static int
80*0Sstevel@tonic-gate ctfs_tdir_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr)
81*0Sstevel@tonic-gate {
82*0Sstevel@tonic-gate 	vap->va_type = VDIR;
83*0Sstevel@tonic-gate 	vap->va_mode = 0555;
84*0Sstevel@tonic-gate 	vap->va_nlink = 2 + CTFS_NSPECIALS;
85*0Sstevel@tonic-gate 	vap->va_size = vap->va_nlink +
86*0Sstevel@tonic-gate 	    contract_type_count(ct_types[gfs_file_index(vp)]);
87*0Sstevel@tonic-gate 	vap->va_ctime.tv_sec = vp->v_vfsp->vfs_mtime;
88*0Sstevel@tonic-gate 	vap->va_ctime.tv_nsec = 0;
89*0Sstevel@tonic-gate 	contract_type_time(ct_types[gfs_file_index(vp)], &vap->va_atime);
90*0Sstevel@tonic-gate 	vap->va_mtime = vap->va_atime;
91*0Sstevel@tonic-gate 	ctfs_common_getattr(vp, vap);
92*0Sstevel@tonic-gate 
93*0Sstevel@tonic-gate 	return (0);
94*0Sstevel@tonic-gate }
95*0Sstevel@tonic-gate 
96*0Sstevel@tonic-gate static ino64_t
97*0Sstevel@tonic-gate ctfs_tdir_do_inode(vnode_t *vp, int index)
98*0Sstevel@tonic-gate {
99*0Sstevel@tonic-gate 	return (CTFS_INO_TYPE_FILE(gfs_file_index(vp), index));
100*0Sstevel@tonic-gate }
101*0Sstevel@tonic-gate 
102*0Sstevel@tonic-gate /* ARGSUSED */
103*0Sstevel@tonic-gate static int
104*0Sstevel@tonic-gate ctfs_tdir_do_readdir(vnode_t *vp, struct dirent64 *dp, int *eofp,
105*0Sstevel@tonic-gate     offset_t *offp, offset_t *nextp, void *data)
106*0Sstevel@tonic-gate {
107*0Sstevel@tonic-gate 	uint64_t zuniqid;
108*0Sstevel@tonic-gate 	ctid_t next;
109*0Sstevel@tonic-gate 	ct_type_t *ty = ct_types[gfs_file_index(vp)];
110*0Sstevel@tonic-gate 
111*0Sstevel@tonic-gate 	zuniqid = VTOZ(vp)->zone_uniqid;
112*0Sstevel@tonic-gate 	next = contract_type_lookup(ty, zuniqid, *offp);
113*0Sstevel@tonic-gate 
114*0Sstevel@tonic-gate 	if (next == -1) {
115*0Sstevel@tonic-gate 		*eofp = 1;
116*0Sstevel@tonic-gate 		return (0);
117*0Sstevel@tonic-gate 	}
118*0Sstevel@tonic-gate 
119*0Sstevel@tonic-gate 	dp->d_ino = CTFS_INO_CT_DIR(next);
120*0Sstevel@tonic-gate 	numtos(next, dp->d_name);
121*0Sstevel@tonic-gate 	*offp = next;
122*0Sstevel@tonic-gate 	*nextp = next + 1;
123*0Sstevel@tonic-gate 
124*0Sstevel@tonic-gate 	return (0);
125*0Sstevel@tonic-gate }
126*0Sstevel@tonic-gate 
127*0Sstevel@tonic-gate static int
128*0Sstevel@tonic-gate ctfs_tdir_do_lookup(vnode_t *vp, const char *nm, vnode_t **vpp, ino64_t *inop)
129*0Sstevel@tonic-gate {
130*0Sstevel@tonic-gate 	int i;
131*0Sstevel@tonic-gate 	contract_t *ct;
132*0Sstevel@tonic-gate 
133*0Sstevel@tonic-gate 	i = stoi((char **)&nm);
134*0Sstevel@tonic-gate 	if (*nm != '\0')
135*0Sstevel@tonic-gate 		return (ENOENT);
136*0Sstevel@tonic-gate 
137*0Sstevel@tonic-gate 	ct = contract_type_ptr(ct_types[gfs_file_index(vp)], i,
138*0Sstevel@tonic-gate 	    VTOZ(vp)->zone_uniqid);
139*0Sstevel@tonic-gate 	if (ct == NULL)
140*0Sstevel@tonic-gate 		return (ENOENT);
141*0Sstevel@tonic-gate 
142*0Sstevel@tonic-gate 	*vpp = ctfs_create_cdirnode(vp, ct);
143*0Sstevel@tonic-gate 	*inop = gfs_file_inode(*vpp);
144*0Sstevel@tonic-gate 	contract_rele(ct);
145*0Sstevel@tonic-gate 	return (0);
146*0Sstevel@tonic-gate }
147*0Sstevel@tonic-gate 
148*0Sstevel@tonic-gate const fs_operation_def_t ctfs_tops_tdir[] = {
149*0Sstevel@tonic-gate 	{ VOPNAME_OPEN,		ctfs_open },
150*0Sstevel@tonic-gate 	{ VOPNAME_CLOSE,	ctfs_close },
151*0Sstevel@tonic-gate 	{ VOPNAME_IOCTL,	fs_inval },
152*0Sstevel@tonic-gate 	{ VOPNAME_GETATTR,	ctfs_tdir_getattr },
153*0Sstevel@tonic-gate 	{ VOPNAME_ACCESS,	ctfs_access_dir },
154*0Sstevel@tonic-gate 	{ VOPNAME_READDIR,	gfs_vop_readdir },
155*0Sstevel@tonic-gate 	{ VOPNAME_LOOKUP,	gfs_vop_lookup },
156*0Sstevel@tonic-gate 	{ VOPNAME_SEEK,		fs_seek },
157*0Sstevel@tonic-gate 	{ VOPNAME_INACTIVE,	(fs_generic_func_p) gfs_vop_inactive },
158*0Sstevel@tonic-gate 	{ NULL, NULL }
159*0Sstevel@tonic-gate };
160