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 39 static MALLOC_DEFINE(XZ_DEC, "XZ_DEC", "XZ decompressor data"); 40 41 void * 42 xz_malloc(unsigned long size) 43 { 44 void *addr; 45 46 addr = malloc(size, XZ_DEC, M_NOWAIT); 47 return (addr); 48 } 49 50 void 51 xz_free(void *addr) 52 { 53 54 free(addr, XZ_DEC); 55 } 56 57 static int 58 xz_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 83 static moduledata_t xz_moduledata = { 84 "xz", 85 xz_module_event_handler, 86 NULL 87 }; 88 89 DECLARE_MODULE(xz, xz_moduledata, SI_SUB_INIT_IF, SI_ORDER_ANY); 90 MODULE_VERSION(xz, 1); 91