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
37 static MALLOC_DEFINE(XZ_DEC, "XZ_DEC", "XZ decompressor data");
38
39 void *
xz_malloc(unsigned long size)40 xz_malloc(unsigned long size)
41 {
42 void *addr;
43
44 addr = malloc(size, XZ_DEC, M_NOWAIT);
45 return (addr);
46 }
47
48 void
xz_free(void * addr)49 xz_free(void *addr)
50 {
51
52 free(addr, XZ_DEC);
53 }
54
55 static int
xz_module_event_handler(module_t mod,int what,void * arg)56 xz_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
81 static moduledata_t xz_moduledata = {
82 "xz",
83 xz_module_event_handler,
84 NULL
85 };
86
87 DECLARE_MODULE(xz, xz_moduledata, SI_SUB_INIT_IF, SI_ORDER_ANY);
88 MODULE_VERSION(xz, 1);
89