1/*-
2 * Copyright (c) 2010-2012 Aleksandr Rybalko
3 * Copyright (c) 2019 Mellanox Technologies
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__FBSDID("$FreeBSD$");
30
31#include <sys/malloc.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include "xz.h"
35#include "xz_malloc.h"
36
37/* Wraper for XZ decompressor memory pool */
38
39static MALLOC_DEFINE(XZ_DEC, "XZ_DEC", "XZ decompressor data");
40
41void *
42xz_malloc(unsigned long size)
43{
44	void *addr;
45
46	addr = malloc(size, XZ_DEC, M_NOWAIT);
47	return (addr);
48}
49
50void
51xz_free(void *addr)
52{
53
54	free(addr, XZ_DEC);
55}
56
57static int
58xz_module_event_handler(module_t mod, int what, void *arg)
59{
60	int error;
61
62	switch (what) {
63	case MOD_LOAD:
64#if XZ_INTERNAL_CRC32
65		xz_crc32_init();
66#endif
67#if XZ_INTERNAL_CRC64
68		xz_crc64_init();
69#endif
70		error = 0;
71		break;
72	case MOD_UNLOAD:
73		error = 0;
74		break;
75	default:
76		error = EOPNOTSUPP;
77		break;
78	}
79
80	return (error);
81}
82
83static moduledata_t xz_moduledata = {
84	"xz",
85	xz_module_event_handler,
86	NULL
87};
88
89DECLARE_MODULE(xz, xz_moduledata, SI_SUB_INIT_IF, SI_ORDER_ANY);
90MODULE_VERSION(xz, 1);
91