1 /*
2 *
3 * CDDL HEADER START
4 *
5 * The contents of this file are subject to the terms of the
6 * Common Development and Distribution License (the "License").
7 * You may not use this file except in compliance with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22
23 /*
24 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
25 */
26
27
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <ctype.h>
33 #include <alloca.h>
34 #include <limits.h>
35 #include <fm/topo_mod.h>
36 #include <sys/param.h>
37 #include <sys/systeminfo.h>
38 #include <sys/fm/protocol.h>
39 #include <sys/stat.h>
40
41 #include <topo_method.h>
42 #include <topo_subr.h>
43 #include <fmd.h>
44
45 static int fmd_enum(topo_mod_t *, tnode_t *, const char *, topo_instance_t,
46 topo_instance_t, void *, void *);
47 static void fmd_release(topo_mod_t *, tnode_t *);
48 static int fmd_fmri_nvl2str(topo_mod_t *, tnode_t *, topo_version_t,
49 nvlist_t *, nvlist_t **);
50
51 const topo_method_t fmd_methods[] = {
52 { TOPO_METH_NVL2STR, TOPO_METH_NVL2STR_DESC, TOPO_METH_NVL2STR_VERSION,
53 TOPO_STABILITY_INTERNAL, fmd_fmri_nvl2str },
54 { NULL }
55 };
56
57 static const topo_modops_t fmd_ops =
58 { fmd_enum, fmd_release };
59 static const topo_modinfo_t fmd_info =
60 { FMD, FM_FMRI_SCHEME_FMD, FMD_VERSION, &fmd_ops };
61
62 int
fmd_init(topo_mod_t * mod,topo_version_t version)63 fmd_init(topo_mod_t *mod, topo_version_t version)
64 {
65 /*
66 * Turn on module debugging output
67 */
68 if (getenv("TOPOFMDDEBUG"))
69 topo_mod_setdebug(mod);
70
71 topo_mod_dprintf(mod, "initializing fmd builtin\n");
72
73 if (version != FMD_VERSION)
74 return (topo_mod_seterrno(mod, EMOD_VER_NEW));
75
76 if (topo_mod_register(mod, &fmd_info, TOPO_VERSION) != 0) {
77 topo_mod_dprintf(mod, "failed to register fmd: "
78 "%s\n", topo_mod_errmsg(mod));
79 return (-1); /* mod errno already set */
80 }
81
82 return (0);
83 }
84
85 void
fmd_fini(topo_mod_t * mod)86 fmd_fini(topo_mod_t *mod)
87 {
88 topo_mod_unregister(mod);
89 }
90
91
92 /*ARGSUSED*/
93 int
fmd_enum(topo_mod_t * mod,tnode_t * pnode,const char * name,topo_instance_t min,topo_instance_t max,void * notused1,void * notused2)94 fmd_enum(topo_mod_t *mod, tnode_t *pnode, const char *name, topo_instance_t min,
95 topo_instance_t max, void *notused1, void *notused2)
96 {
97 /*
98 * Methods are registered, but there is no enumeration. Should
99 * enumeration be added be sure to cater for global vs non-global
100 * zones.
101 */
102 (void) topo_method_register(mod, pnode, fmd_methods);
103 return (0);
104 }
105
106 /*ARGSUSED*/
107 static void
fmd_release(topo_mod_t * mp,tnode_t * node)108 fmd_release(topo_mod_t *mp, tnode_t *node)
109 {
110 topo_method_unregister_all(mp, node);
111 }
112
113 static ssize_t
fmri_nvl2str(nvlist_t * nvl,char * buf,size_t buflen)114 fmri_nvl2str(nvlist_t *nvl, char *buf, size_t buflen)
115 {
116 char *name;
117
118 if (nvlist_lookup_string(nvl, FM_FMRI_FMD_NAME, &name) != 0)
119 return (0);
120
121 return (snprintf(buf, buflen,
122 "%s:///module/%s", FM_FMRI_SCHEME_FMD, name));
123 }
124
125 /*ARGSUSED*/
126 static int
fmd_fmri_nvl2str(topo_mod_t * mod,tnode_t * node,topo_version_t version,nvlist_t * nvl,nvlist_t ** out)127 fmd_fmri_nvl2str(topo_mod_t *mod, tnode_t *node, topo_version_t version,
128 nvlist_t *nvl, nvlist_t **out)
129 {
130 ssize_t len;
131 char *name = NULL;
132 nvlist_t *fmristr;
133
134 if (version > TOPO_METH_NVL2STR_VERSION)
135 return (topo_mod_seterrno(mod, EMOD_VER_NEW));
136
137 if ((len = fmri_nvl2str(nvl, NULL, 0)) == 0 ||
138 (name = topo_mod_alloc(mod, len + 1)) == NULL ||
139 fmri_nvl2str(nvl, name, len + 1) == 0) {
140 if (name != NULL)
141 topo_mod_free(mod, name, len + 1);
142 return (topo_mod_seterrno(mod, EMOD_FMRI_NVL));
143 }
144
145 if (topo_mod_nvalloc(mod, &fmristr, NV_UNIQUE_NAME) != 0) {
146 topo_mod_free(mod, name, len + 1);
147 return (topo_mod_seterrno(mod, EMOD_FMRI_NVL));
148 }
149 if (nvlist_add_string(fmristr, "fmri-string", name) != 0) {
150 topo_mod_free(mod, name, len + 1);
151 nvlist_free(fmristr);
152 return (topo_mod_seterrno(mod, EMOD_FMRI_NVL));
153 }
154 topo_mod_free(mod, name, len + 1);
155 *out = fmristr;
156
157 return (0);
158 }
159