1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26
27
28 #include <sys/types.h>
29 #include <sys/param.h>
30 #include <sys/time.h>
31 #include <sys/cred.h>
32 #include <sys/vfs.h>
33 #include <sys/vfs_opreg.h>
34 #include <sys/gfs.h>
35 #include <sys/vnode.h>
36 #include <sys/systm.h>
37 #include <sys/errno.h>
38 #include <sys/sysmacros.h>
39 #include <fs/fs_subr.h>
40 #include <sys/contract.h>
41 #include <sys/contract_impl.h>
42 #include <sys/ctfs.h>
43 #include <sys/ctfs_impl.h>
44 #include <sys/file.h>
45 #include <sys/pathname.h>
46
47 /*
48 * Entries in a /system/contract/<type> directory.
49 */
50 static gfs_dirent_t ctfs_tdir_dirents[] = {
51 { "bundle", ctfs_create_bundle },
52 { "pbundle", ctfs_create_pbundle },
53 { "template", ctfs_create_tmplnode },
54 { "latest", ctfs_create_latenode, GFS_CACHE_VNODE },
55 { NULL }
56 };
57 #define CTFS_NSPECIALS ((sizeof ctfs_tdir_dirents / sizeof (gfs_dirent_t)) - 1)
58
59 static int ctfs_tdir_do_readdir(vnode_t *, void *, int *, offset_t *,
60 offset_t *, void *, int);
61 static int ctfs_tdir_do_lookup(vnode_t *, const char *, vnode_t **, ino64_t *,
62 cred_t *, int, int *, pathname_t *);
63 static ino64_t ctfs_tdir_do_inode(vnode_t *, int);
64
65 /*
66 * ctfs_create_tdirnode
67 */
68 vnode_t *
69 ctfs_create_tdirnode(vnode_t *pvp)
70 {
71 return (gfs_dir_create(sizeof (ctfs_tdirnode_t), pvp, ctfs_ops_tdir,
72 ctfs_tdir_dirents, ctfs_tdir_do_inode, CTFS_NAME_MAX,
73 ctfs_tdir_do_readdir, ctfs_tdir_do_lookup));
74 }
75
76 /*
77 * ctfs_tdir_getattr - VOP_GETATTR entry point
78 */
79 /* ARGSUSED */
80 static int
81 ctfs_tdir_getattr(
82 vnode_t *vp,
83 vattr_t *vap,
84 int flags,
85 cred_t *cr,
86 caller_context_t *ct)
87 {
88 vap->va_type = VDIR;
89 vap->va_mode = 0555;
90 vap->va_nlink = 2 + CTFS_NSPECIALS;
91 vap->va_size = vap->va_nlink +
92 contract_type_count(ct_types[gfs_file_index(vp)]);
93 vap->va_ctime.tv_sec = vp->v_vfsp->vfs_mtime;
94 vap->va_ctime.tv_nsec = 0;
95 contract_type_time(ct_types[gfs_file_index(vp)], &vap->va_atime);
96 vap->va_mtime = vap->va_atime;
97 ctfs_common_getattr(vp, vap);
98
99 return (0);
100 }
101
102 static ino64_t
103 ctfs_tdir_do_inode(vnode_t *vp, int index)
104 {
105 return (CTFS_INO_TYPE_FILE(gfs_file_index(vp), index));
106 }
107
108 /* ARGSUSED */
109 static int
110 ctfs_tdir_do_readdir(vnode_t *vp, void *dp, int *eofp,
111 offset_t *offp, offset_t *nextp, void *data, int flags)
112 {
113 uint64_t zuniqid;
114 ctid_t next;
115 ct_type_t *ty = ct_types[gfs_file_index(vp)];
116 struct dirent64 *odp = dp;
117
118 ASSERT(!(flags & V_RDDIR_ENTFLAGS));
119
120 zuniqid = VTOZONE(vp)->zone_uniqid;
121 next = contract_type_lookup(ty, zuniqid, *offp);
122
123 if (next == -1) {
124 *eofp = 1;
125 return (0);
126 }
127
128 odp->d_ino = CTFS_INO_CT_DIR(next);
129 numtos(next, odp->d_name);
130 *offp = next;
131 *nextp = next + 1;
132
133 return (0);
134 }
135
136 /* ARGSUSED */
137 static int
138 ctfs_tdir_do_lookup(vnode_t *vp, const char *nm, vnode_t **vpp, ino64_t *inop,
139 cred_t *cr, int flags, int *deflags, pathname_t *rpnp)
140 {
141 int i;
142 contract_t *ct;
143
144 i = stoi((char **)&nm);
145 if (*nm != '\0')
146 return (ENOENT);
147
148 ct = contract_type_ptr(ct_types[gfs_file_index(vp)], i,
149 VTOZONE(vp)->zone_uniqid);
150 if (ct == NULL)
151 return (ENOENT);
152
153 *vpp = ctfs_create_cdirnode(vp, ct);
154 *inop = gfs_file_inode(*vpp);
155 contract_rele(ct);
156 return (0);
157 }
158
159 const fs_operation_def_t ctfs_tops_tdir[] = {
160 { VOPNAME_OPEN, { .vop_open = ctfs_open } },
161 { VOPNAME_CLOSE, { .vop_close = ctfs_close } },
162 { VOPNAME_IOCTL, { .error = fs_inval } },
163 { VOPNAME_GETATTR, { .vop_getattr = ctfs_tdir_getattr } },
164 { VOPNAME_ACCESS, { .vop_access = ctfs_access_dir } },
165 { VOPNAME_READDIR, { .vop_readdir = gfs_vop_readdir } },
166 { VOPNAME_LOOKUP, { .vop_lookup = gfs_vop_lookup } },
167 { VOPNAME_SEEK, { .vop_seek = fs_seek } },
168 { VOPNAME_INACTIVE, { .vop_inactive = gfs_vop_inactive } },
169 { NULL, { NULL } }
170 };