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 * CTFS routines for the /system/contract/all vnode.
47 */
48
49 static int ctfs_adir_do_readdir(vnode_t *, void *, int *, offset_t *,
50 offset_t *, void *, int);
51 static int ctfs_adir_do_lookup(vnode_t *, const char *, vnode_t **, ino64_t *,
52 cred_t *, int, int *, pathname_t *);
53
54 /*
55 * ctfs_create_adirnode
56 */
57 /* ARGSUSED */
58 vnode_t *
ctfs_create_adirnode(vnode_t * pvp)59 ctfs_create_adirnode(vnode_t *pvp)
60 {
61 vnode_t *vp = gfs_dir_create(sizeof (ctfs_adirnode_t), pvp,
62 ctfs_ops_adir, NULL, NULL, CTFS_NAME_MAX, ctfs_adir_do_readdir,
63 ctfs_adir_do_lookup);
64
65 return (vp);
66 }
67
68 /*
69 * ctfs_adir_getattr - VOP_GETATTR entry point
70 */
71 /* ARGSUSED */
72 static int
ctfs_adir_getattr(vnode_t * vp,vattr_t * vap,int flags,cred_t * cr,caller_context_t * ct)73 ctfs_adir_getattr(
74 vnode_t *vp,
75 vattr_t *vap,
76 int flags,
77 cred_t *cr,
78 caller_context_t *ct)
79 {
80 int i, total;
81
82 vap->va_type = VDIR;
83 vap->va_mode = 0555;
84 for (i = 0, total = 0; i < ct_ntypes; i++)
85 total += contract_type_count(ct_types[i]);
86 vap->va_nlink = 2;
87 vap->va_size = 2 + total;
88 vap->va_ctime.tv_sec = vp->v_vfsp->vfs_mtime;
89 vap->va_ctime.tv_nsec = 0;
90 vap->va_mtime = vap->va_atime = vap->va_ctime;
91 ctfs_common_getattr(vp, vap);
92
93 return (0);
94 }
95
96 /* ARGSUSED */
97 static int
ctfs_adir_do_lookup(vnode_t * vp,const char * nm,vnode_t ** vpp,ino64_t * inop,cred_t * cr,int flags,int * deflags,pathname_t * rpnp)98 ctfs_adir_do_lookup(vnode_t *vp, const char *nm, vnode_t **vpp, ino64_t *inop,
99 cred_t *cr, int flags, int *deflags, pathname_t *rpnp)
100 {
101 int i;
102 contract_t *ct;
103
104 i = stoi((char **)&nm);
105 if (*nm != '\0')
106 return (ENOENT);
107
108 ct = contract_ptr(i, VTOZONE(vp)->zone_uniqid);
109 if (ct == NULL)
110 return (ENOENT);
111
112 *vpp = ctfs_create_symnode(vp, ct);
113 *inop = CTFS_INO_CT_LINK(ct->ct_id);
114 contract_rele(ct);
115
116 return (0);
117 }
118
119 /* ARGSUSED */
120 static int
ctfs_adir_do_readdir(vnode_t * vp,void * dp,int * eofp,offset_t * offp,offset_t * nextp,void * unused,int flags)121 ctfs_adir_do_readdir(vnode_t *vp, void *dp, int *eofp,
122 offset_t *offp, offset_t *nextp, void *unused, int flags)
123 {
124 uint64_t zuniqid;
125 ctid_t next;
126 struct dirent64 *odp = dp;
127
128 ASSERT(!(flags & V_RDDIR_ENTFLAGS));
129
130 zuniqid = VTOZONE(vp)->zone_uniqid;
131 next = contract_lookup(zuniqid, *offp);
132
133 if (next == -1) {
134 *eofp = 1;
135 return (0);
136 }
137
138 odp->d_ino = CTFS_INO_CT_LINK(next);
139 numtos(next, odp->d_name);
140 *offp = next;
141 *nextp = next + 1;
142
143 return (0);
144 }
145
146 const fs_operation_def_t ctfs_tops_adir[] = {
147 { VOPNAME_OPEN, { .vop_open = ctfs_open } },
148 { VOPNAME_CLOSE, { .vop_close = ctfs_close } },
149 { VOPNAME_IOCTL, { .error = fs_inval } },
150 { VOPNAME_GETATTR, { .vop_getattr = ctfs_adir_getattr } },
151 { VOPNAME_ACCESS, { .vop_access = ctfs_access_dir } },
152 { VOPNAME_READDIR, { .vop_readdir = gfs_vop_readdir } },
153 { VOPNAME_LOOKUP, { .vop_lookup = gfs_vop_lookup } },
154 { VOPNAME_SEEK, { .vop_seek = fs_seek } },
155 { VOPNAME_INACTIVE, { .vop_inactive = gfs_vop_inactive } },
156 { NULL, NULL }
157 };
158