xref: /illumos-gate/usr/src/cmd/fm/schemes/dev/scheme.c (revision d48be21240dfd051b689384ce2b23479d757f2d8)
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 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include <fm/fmd_fmri.h>
28 #include <fm/libtopo.h>
29 #include <fm/topo_mod.h>
30 #include <libdevinfo.h>
31 #include <alloca.h>
32 #include <string.h>
33 
34 int
35 fmd_fmri_init(void)
36 {
37 	return (0);
38 }
39 
40 void
41 fmd_fmri_fini(void)
42 {
43 }
44 
45 ssize_t
46 fmd_fmri_nvl2str(nvlist_t *nvl, char *buf, size_t buflen)
47 {
48 	int err;
49 	ssize_t len;
50 	topo_hdl_t *thp;
51 	char *str;
52 
53 	if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
54 		return (fmd_fmri_set_errno(EINVAL));
55 
56 	if (topo_fmri_nvl2str(thp, nvl, &str, &err) != 0) {
57 		fmd_fmri_topo_rele(thp);
58 		return (fmd_fmri_set_errno(EINVAL));
59 	}
60 
61 	if (buf != NULL)
62 		len = snprintf(buf, buflen, "%s", str);
63 	else
64 		len = strlen(str);
65 
66 	topo_hdl_strfree(thp, str);
67 	fmd_fmri_topo_rele(thp);
68 
69 	return (len);
70 }
71 
72 int
73 fmd_fmri_present(nvlist_t *nvl)
74 {
75 	int err, present;
76 	topo_hdl_t *thp;
77 
78 	if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
79 		return (fmd_fmri_set_errno(EINVAL));
80 	err = 0;
81 	present = topo_fmri_present(thp, nvl, &err);
82 	fmd_fmri_topo_rele(thp);
83 
84 	return (present);
85 }
86 
87 int
88 fmd_fmri_replaced(nvlist_t *nvl)
89 {
90 	int err, rval;
91 	topo_hdl_t *thp;
92 
93 	if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
94 		return (fmd_fmri_set_errno(EINVAL));
95 	err = 0;
96 	rval = topo_fmri_replaced(thp, nvl, &err);
97 	fmd_fmri_topo_rele(thp);
98 
99 	return (rval);
100 }
101 
102 int
103 fmd_fmri_unusable(nvlist_t *nvl)
104 {
105 	uint8_t version;
106 	int err, unusable;
107 	topo_hdl_t *thp;
108 
109 	if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 ||
110 	    version > FM_DEV_SCHEME_VERSION)
111 		return (fmd_fmri_set_errno(EINVAL));
112 
113 	if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
114 		return (fmd_fmri_set_errno(EINVAL));
115 	err = 0;
116 	unusable = topo_fmri_unusable(thp, nvl, &err);
117 	fmd_fmri_topo_rele(thp);
118 
119 	if (err != 0)
120 		return (0);
121 	else
122 		return (unusable);
123 }
124 
125 int
126 fmd_fmri_service_state(nvlist_t *nvl)
127 {
128 	uint8_t version;
129 	int err, service_state;
130 	topo_hdl_t *thp;
131 
132 	if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 ||
133 	    version > FM_DEV_SCHEME_VERSION)
134 		return (fmd_fmri_set_errno(EINVAL));
135 
136 	if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
137 		return (fmd_fmri_set_errno(EINVAL));
138 	err = 0;
139 	service_state = topo_fmri_service_state(thp, nvl, &err);
140 	fmd_fmri_topo_rele(thp);
141 
142 	if (err != 0)
143 		return (FMD_SERVICE_STATE_UNKNOWN);
144 	else
145 		return (service_state);
146 }
147