cfe_env.c revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2009 Neelkanth Natu
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/param.h>
30#include <sys/kenv.h>
31
32#include <dev/cfe/cfe_api.h>
33
34__FBSDID("$FreeBSD: stable/11/sys/dev/cfe/cfe_env.c 330897 2018-03-14 03:19:51Z eadler $");
35
36#ifndef	CFE_ENV_SIZE
37#define	CFE_ENV_SIZE	PAGE_SIZE	/* default is one page */
38#endif
39
40extern void cfe_env_init(void);
41
42static char cfe_env_buf[CFE_ENV_SIZE];
43
44void
45cfe_env_init(void)
46{
47	int idx;
48	char name[KENV_MNAMELEN], val[KENV_MVALLEN];
49
50	init_static_kenv(cfe_env_buf, CFE_ENV_SIZE);
51
52	idx = 0;
53	while (1) {
54		if (cfe_enumenv(idx, name, sizeof(name), val, sizeof(val)) != 0)
55			break;
56
57		if (kern_setenv(name, val) != 0) {
58			printf("No space to store CFE env: \"%s=%s\"\n",
59				name, val);
60		}
61		++idx;
62	}
63}
64