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 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/types.h>
30 #include <errno.h>
31 #include <malloc.h>
32 #include <mdesc.h>
33 #include <pri.h>
34 #include "priplugin.h"
35
36 static void pri_free(void *bufp, size_t size);
37 static uint64_t *md_bufp = NULL;
38 static uint64_t *new_md_bufp;
39
40 int
pri_devinit(uint64_t * tok)41 pri_devinit(uint64_t *tok)
42 {
43 int status;
44
45 new_md_bufp = NULL;
46 status = 0;
47 if (pri_get(PRI_WAITGET, tok, &new_md_bufp, malloc, pri_free) ==
48 (ssize_t)-1) {
49 pri_debug(LOG_NOTICE, "pri_devinit: can'r read from "
50 "the PRI: %d\n", errno);
51 status = -1;
52 }
53 if (new_md_bufp == NULL) {
54 pri_debug(LOG_NOTICE, "pri_devinit: pri_get returned "
55 "NULL buffer!\n");
56 status = -1;
57 }
58 return (status);
59 }
60
61 md_t *
pri_bufinit(md_t * mdp)62 pri_bufinit(md_t *mdp)
63 {
64
65 if (mdp)
66 md_fini(mdp);
67 if (md_bufp)
68 free(md_bufp);
69 md_bufp = new_md_bufp;
70
71 pri_debug(LOG_NOTICE, "pri_bufinit: done reading PRI\n");
72
73 /*
74 * The PRI and the MD use the same data format so they can be
75 * parsed by the same functions.
76 */
77 if (md_bufp) {
78 mdp = md_init_intern(md_bufp, malloc, pri_free);
79 if (mdp == NULL) {
80 pri_debug(LOG_NOTICE, "pri_bufinit: md_init_intern "
81 "failed\n");
82 free(md_bufp);
83 md_bufp = NULL;
84 } else {
85 pri_debug(LOG_NOTICE, "pri_bufinit: mdi_init_intern "
86 "completed successfully\n");
87 }
88 } else
89 mdp = NULL;
90
91 pri_debug(LOG_NOTICE, "pri_bufinit: returning\n");
92
93 return (mdp);
94 }
95
96 /*ARGSUSED*/
97 static void
pri_free(void * bufp,size_t size)98 pri_free(void *bufp, size_t size)
99 {
100 if (bufp)
101 free(bufp);
102 }
103
104 void
pri_devfini(md_t * mdp)105 pri_devfini(md_t *mdp)
106 {
107 if (mdp)
108 (void) md_fini(mdp);
109
110 if (md_bufp)
111 free(md_bufp);
112 md_bufp = NULL;
113 }
114