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 #include <sys/types.h>
27 #include <sys/param.h>
28 #include <sys/time.h>
29 #include <sys/cred.h>
30 #include <sys/vfs.h>
31 #include <sys/vfs_opreg.h>
32 #include <sys/gfs.h>
33 #include <sys/vnode.h>
34 #include <sys/systm.h>
35 #include <sys/errno.h>
36 #include <sys/sysmacros.h>
37 #include <fs/fs_subr.h>
38 #include <sys/contract.h>
39 #include <sys/contract_impl.h>
40 #include <sys/ctfs.h>
41 #include <sys/ctfs_impl.h>
42 #include <sys/file.h>
43 #include <sys/pathname.h>
44
45 /*
46 * Entries in a /system/contract/<type> directory.
47 */
48 static gfs_dirent_t ctfs_tdir_dirents[] = {
49 { "bundle", ctfs_create_bundle },
50 { "pbundle", ctfs_create_pbundle },
51 { "template", ctfs_create_tmplnode },
52 { "latest", ctfs_create_latenode, GFS_CACHE_VNODE },
53 { NULL }
54 };
55 #define CTFS_NSPECIALS ((sizeof ctfs_tdir_dirents / sizeof (gfs_dirent_t)) - 1)
56
57 static int ctfs_tdir_do_readdir(vnode_t *, void *, int *, offset_t *,
58 offset_t *, void *, int);
59 static int ctfs_tdir_do_lookup(vnode_t *, const char *, vnode_t **, ino64_t *,
60 cred_t *, int, int *, pathname_t *);
61 static ino64_t ctfs_tdir_do_inode(vnode_t *, int);
62
63 /*
64 * ctfs_create_tdirnode
65 */
66 vnode_t *
ctfs_create_tdirnode(vnode_t * pvp)67 ctfs_create_tdirnode(vnode_t *pvp)
68 {
69 return (gfs_dir_create(sizeof (ctfs_tdirnode_t), pvp, ctfs_ops_tdir,
70 ctfs_tdir_dirents, ctfs_tdir_do_inode, CTFS_NAME_MAX,
71 ctfs_tdir_do_readdir, ctfs_tdir_do_lookup));
72 }
73
74 /*
75 * ctfs_tdir_getattr - VOP_GETATTR entry point
76 */
77 /* ARGSUSED */
78 static int
ctfs_tdir_getattr(vnode_t * vp,vattr_t * vap,int flags,cred_t * cr,caller_context_t * ct)79 ctfs_tdir_getattr(
80 vnode_t *vp,
81 vattr_t *vap,
82 int flags,
83 cred_t *cr,
84 caller_context_t *ct)
85 {
86 vap->va_type = VDIR;
87 vap->va_mode = 0555;
88 vap->va_nlink = 2 + CTFS_NSPECIALS;
89 vap->va_size = vap->va_nlink +
90 contract_type_count(ct_types[gfs_file_index(vp)]);
91 vap->va_ctime.tv_sec = vp->v_vfsp->vfs_mtime;
92 vap->va_ctime.tv_nsec = 0;
93 contract_type_time(ct_types[gfs_file_index(vp)], &vap->va_atime);
94 vap->va_mtime = vap->va_atime;
95 ctfs_common_getattr(vp, vap);
96
97 return (0);
98 }
99
100 static ino64_t
ctfs_tdir_do_inode(vnode_t * vp,int index)101 ctfs_tdir_do_inode(vnode_t *vp, int index)
102 {
103 return (CTFS_INO_TYPE_FILE(gfs_file_index(vp), index));
104 }
105
106 /* ARGSUSED */
107 static int
ctfs_tdir_do_readdir(vnode_t * vp,void * dp,int * eofp,offset_t * offp,offset_t * nextp,void * data,int flags)108 ctfs_tdir_do_readdir(vnode_t *vp, void *dp, int *eofp,
109 offset_t *offp, offset_t *nextp, void *data, int flags)
110 {
111 uint64_t zuniqid;
112 ctid_t next;
113 ct_type_t *ty = ct_types[gfs_file_index(vp)];
114 struct dirent64 *odp = dp;
115
116 ASSERT(!(flags & V_RDDIR_ENTFLAGS));
117
118 zuniqid = VTOZONE(vp)->zone_uniqid;
119 next = contract_type_lookup(ty, zuniqid, *offp);
120
121 if (next == -1) {
122 *eofp = 1;
123 return (0);
124 }
125
126 odp->d_ino = CTFS_INO_CT_DIR(next);
127 numtos(next, odp->d_name);
128 *offp = next;
129 *nextp = next + 1;
130
131 return (0);
132 }
133
134 /* ARGSUSED */
135 static int
ctfs_tdir_do_lookup(vnode_t * vp,const char * nm,vnode_t ** vpp,ino64_t * inop,cred_t * cr,int flags,int * deflags,pathname_t * rpnp)136 ctfs_tdir_do_lookup(vnode_t *vp, const char *nm, vnode_t **vpp, ino64_t *inop,
137 cred_t *cr, int flags, int *deflags, pathname_t *rpnp)
138 {
139 int i;
140 contract_t *ct;
141
142 i = stoi((char **)&nm);
143 if (*nm != '\0')
144 return (ENOENT);
145
146 ct = contract_type_ptr(ct_types[gfs_file_index(vp)], i,
147 VTOZONE(vp)->zone_uniqid);
148 if (ct == NULL)
149 return (ENOENT);
150
151 *vpp = ctfs_create_cdirnode(vp, ct);
152 *inop = gfs_file_inode(*vpp);
153 contract_rele(ct);
154 return (0);
155 }
156
157 const fs_operation_def_t ctfs_tops_tdir[] = {
158 { VOPNAME_OPEN, { .vop_open = ctfs_open } },
159 { VOPNAME_CLOSE, { .vop_close = ctfs_close } },
160 { VOPNAME_IOCTL, { .error = fs_inval } },
161 { VOPNAME_GETATTR, { .vop_getattr = ctfs_tdir_getattr } },
162 { VOPNAME_ACCESS, { .vop_access = ctfs_access_dir } },
163 { VOPNAME_READDIR, { .vop_readdir = gfs_vop_readdir } },
164 { VOPNAME_LOOKUP, { .vop_lookup = gfs_vop_lookup } },
165 { VOPNAME_SEEK, { .vop_seek = fs_seek } },
166 { VOPNAME_INACTIVE, { .vop_inactive = gfs_vop_inactive } },
167 { NULL, NULL }
168 };
169