1/*
2 * kernel_compat.h
3 *
4 * Compatibility stuff for building in kernel context where standard
5 * C headers and library are not available.
6 *
7 * Marcus Sundberg
8 * Ingate Systems AB
9 */
10/*
11 *
12 * Copyright(c) 2005 Ingate Systems AB
13 * All rights reserved.
14 *
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
17 * are met:
18 *
19 *   Redistributions of source code must retain the above copyright
20 *   notice, this list of conditions and the following disclaimer.
21 *
22 *   Redistributions in binary form must reproduce the above
23 *   copyright notice, this list of conditions and the following
24 *   disclaimer in the documentation and/or other materials provided
25 *   with the distribution.
26 *
27 *   Neither the name of the author(s) nor the names of its
28 *   contributors may be used to endorse or promote products derived
29 *   from this software without specific prior written permission.
30 *
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
34 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
35 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
36 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
37 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
38 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
42 * OF THE POSSIBILITY OF SUCH DAMAGE.
43 *
44 */
45
46#ifndef KERNEL_COMPAT_H
47#define KERNEL_COMPAT_H
48
49#ifdef SRTP_KERNEL_LINUX
50
51#include <linux/kernel.h>
52#include <linux/slab.h>
53#include <linux/sched.h>
54#include <linux/random.h>
55#include <linux/byteorder/generic.h>
56
57
58#define err_report(priority, ...) \
59  do {\
60    if (priority <= err_level) {\
61       printk(__VA_ARGS__);\
62    }\
63  }while(0)
64
65#define clock()	(jiffies)
66#define time(x)	(jiffies)
67
68/* rand() implementation. */
69#define RAND_MAX	32767
70
71static INLINE int rand(void)
72{
73	uint32_t temp;
74	get_random_bytes(&temp, sizeof(temp));
75	return temp % (RAND_MAX+1);
76}
77
78/* stdio/stdlib implementation. */
79#define printf(...)	printk(__VA_ARGS__)
80#define exit(n)	panic("%s:%d: exit(%d)\n", __FILE__, __LINE__, (n))
81
82#endif /* SRTP_KERNEL_LINUX */
83
84#endif /* KERNEL_COMPAT_H */
85