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#include <sys/malloc.h>
30#include <sys/kernel.h>
31#include <sys/module.h>
32#include "xz.h"
33#include "xz_malloc.h"
34
35/* Wraper for XZ decompressor memory pool */
36
37static MALLOC_DEFINE(XZ_DEC, "XZ_DEC", "XZ decompressor data");
38
39void *
40xz_malloc(unsigned long size)
41{
42	void *addr;
43
44	addr = malloc(size, XZ_DEC, M_NOWAIT);
45	return (addr);
46}
47
48void
49xz_free(void *addr)
50{
51
52	free(addr, XZ_DEC);
53}
54
55static int
56xz_module_event_handler(module_t mod, int what, void *arg)
57{
58	int error;
59
60	switch (what) {
61	case MOD_LOAD:
62#if XZ_INTERNAL_CRC32
63		xz_crc32_init();
64#endif
65#if XZ_INTERNAL_CRC64
66		xz_crc64_init();
67#endif
68		error = 0;
69		break;
70	case MOD_UNLOAD:
71		error = 0;
72		break;
73	default:
74		error = EOPNOTSUPP;
75		break;
76	}
77
78	return (error);
79}
80
81static moduledata_t xz_moduledata = {
82	"xz",
83	xz_module_event_handler,
84	NULL
85};
86
87DECLARE_MODULE(xz, xz_moduledata, SI_SUB_INIT_IF, SI_ORDER_ANY);
88MODULE_VERSION(xz, 1);
89