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
27#include <errno.h>
28#include <strings.h>
29
30#include <gmem_fmri.h>
31#include <gmem.h>
32
33void
34gmem_fmri_init(fmd_hdl_t *hdl, gmem_fmri_t *fmri, nvlist_t *nvl,
35    const char *fmt, ...)
36{
37	va_list ap;
38
39	va_start(ap, fmt);
40	gmem_vbufname(fmri->fmri_packnm, sizeof (fmri->fmri_packnm), fmt, ap);
41	va_end(ap);
42
43	if ((errno = nvlist_dup(nvl, &fmri->fmri_nvl, 0)) != 0 ||
44	    (errno = nvlist_size(nvl, &fmri->fmri_packsz,
45	    NV_ENCODE_NATIVE)) != 0)
46		fmd_hdl_abort(hdl, "failed to copy fmri for fmri create");
47
48	fmri->fmri_packbuf = fmd_hdl_alloc(hdl, fmri->fmri_packsz, FMD_SLEEP);
49
50	if ((errno = nvlist_pack(nvl, &fmri->fmri_packbuf, &fmri->fmri_packsz,
51	    NV_ENCODE_NATIVE, 0)) != 0)
52		fmd_hdl_abort(hdl, "failed to pack fmri for fmri create");
53
54	gmem_fmri_write(hdl, fmri);
55}
56
57void
58gmem_fmri_fini(fmd_hdl_t *hdl, gmem_fmri_t *fmri, int destroy)
59{
60	if (destroy)
61		fmd_buf_destroy(hdl, NULL, fmri->fmri_packnm);
62
63	fmd_hdl_free(hdl, fmri->fmri_packbuf, fmri->fmri_packsz);
64	nvlist_free(fmri->fmri_nvl);
65}
66
67void
68gmem_fmri_restore(fmd_hdl_t *hdl, gmem_fmri_t *fmri)
69{
70	if (fmd_buf_size(hdl, NULL, fmri->fmri_packnm) == 0) {
71		bzero(fmri, sizeof (gmem_fmri_t));
72		return;
73	}
74
75	if ((fmri->fmri_packbuf = gmem_buf_read(hdl, NULL, fmri->fmri_packnm,
76	    fmri->fmri_packsz)) == NULL) {
77		fmd_hdl_abort(hdl, "failed to read fmri buffer %s",
78		    fmri->fmri_packnm);
79	}
80
81	if (nvlist_unpack(fmri->fmri_packbuf, fmri->fmri_packsz,
82	    &fmri->fmri_nvl, 0) != 0) {
83		fmd_hdl_abort(hdl, "failed to unpack fmri buffer %s\n",
84		    fmri->fmri_packnm);
85	}
86}
87
88void
89gmem_fmri_write(fmd_hdl_t *hdl, gmem_fmri_t *fmri)
90{
91	size_t sz;
92
93	if ((sz = fmd_buf_size(hdl, NULL, fmri->fmri_packnm)) !=
94	    fmri->fmri_packsz && sz != 0)
95		fmd_buf_destroy(hdl, NULL, fmri->fmri_packnm);
96
97	fmd_buf_write(hdl, NULL, fmri->fmri_packnm, fmri->fmri_packbuf,
98	    fmri->fmri_packsz);
99}
100