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 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sys/types.h>
28 #include <errno.h>
29 #include <malloc.h>
30 #include <mdesc.h>
31 #include <pri.h>
32 #include "priplugin.h"
33
34 static void pri_free(void *bufp, size_t size);
35 static uint64_t *md_bufp = NULL;
36 static uint64_t *new_md_bufp;
37
38 int
pri_devinit(uint64_t * tok)39 pri_devinit(uint64_t *tok)
40 {
41 int status;
42
43 new_md_bufp = NULL;
44 status = 0;
45 if (pri_get(PRI_WAITGET, tok, &new_md_bufp, malloc, pri_free) ==
46 (ssize_t)-1) {
47 pri_debug(LOG_NOTICE, "pri_devinit: can'r read from "
48 "the PRI: %d\n", errno);
49 status = -1;
50 }
51 if (new_md_bufp == NULL) {
52 pri_debug(LOG_NOTICE, "pri_devinit: pri_get returned "
53 "NULL buffer!\n");
54 status = -1;
55 }
56 return (status);
57 }
58
59 md_t *
pri_bufinit(md_t * mdp)60 pri_bufinit(md_t *mdp)
61 {
62
63 if (mdp)
64 md_fini(mdp);
65 if (md_bufp)
66 free(md_bufp);
67 md_bufp = new_md_bufp;
68
69 pri_debug(LOG_NOTICE, "pri_bufinit: done reading PRI\n");
70
71 /*
72 * The PRI and the MD use the same data format so they can be
73 * parsed by the same functions.
74 */
75 if (md_bufp) {
76 mdp = md_init_intern(md_bufp, malloc, pri_free);
77 if (mdp == NULL) {
78 pri_debug(LOG_NOTICE, "pri_bufinit: md_init_intern "
79 "failed\n");
80 free(md_bufp);
81 md_bufp = NULL;
82 } else {
83 pri_debug(LOG_NOTICE, "pri_bufinit: mdi_init_intern "
84 "completed successfully\n");
85 }
86 } else
87 mdp = NULL;
88
89 pri_debug(LOG_NOTICE, "pri_bufinit: returning\n");
90
91 return (mdp);
92 }
93
94 /*ARGSUSED*/
95 static void
pri_free(void * bufp,size_t size)96 pri_free(void *bufp, size_t size)
97 {
98 if (bufp)
99 free(bufp);
100 }
101
102 void
pri_devfini(md_t * mdp)103 pri_devfini(md_t *mdp)
104 {
105 if (mdp)
106 (void) md_fini(mdp);
107
108 if (md_bufp)
109 free(md_bufp);
110 md_bufp = NULL;
111 }
112