1 /*- 2 * Copyright (c) 2014 Vassilis Laganakos 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 #include <sys/param.h> 29 #include <sys/exec.h> 30 #include <sys/imgact.h> 31 #include <sys/kernel.h> 32 #include <sys/malloc.h> 33 #include <sys/sx.h> 34 35 #include <compat/linux/linux.h> 36 #include <compat/linux/linux_mib.h> 37 #include <compat/linux/linux_util.h> 38 39 SET_DECLARE(linux_device_handler_set, struct linux_device_handler); 40 41 TAILQ_HEAD(, linux_ioctl_handler_element) linux_ioctl_handlers = 42 TAILQ_HEAD_INITIALIZER(linux_ioctl_handlers); 43 struct sx linux_ioctl_sx; 44 SX_SYSINIT(linux_ioctl, &linux_ioctl_sx, "Linux ioctl handlers"); 45 46 static int 47 linux_common_modevent(module_t mod, int type, void *data) 48 { 49 struct linux_device_handler **ldhp; 50 51 switch(type) { 52 case MOD_LOAD: 53 #ifdef INVARIANTS 54 linux_check_errtbl(); 55 #endif 56 linux_dev_shm_create(); 57 linux_osd_jail_register(); 58 SET_FOREACH(ldhp, linux_device_handler_set) 59 linux_device_register_handler(*ldhp); 60 linux_netlink_register(); 61 break; 62 case MOD_UNLOAD: 63 linux_dev_shm_destroy(); 64 linux_osd_jail_deregister(); 65 SET_FOREACH(ldhp, linux_device_handler_set) 66 linux_device_unregister_handler(*ldhp); 67 linux_netlink_deregister(); 68 break; 69 default: 70 return (EOPNOTSUPP); 71 } 72 return (0); 73 } 74 75 static moduledata_t linux_common_mod = { 76 "linux_common", 77 linux_common_modevent, 78 0 79 }; 80 81 DECLARE_MODULE(linux_common, linux_common_mod, SI_SUB_EXEC, SI_ORDER_ANY); 82 MODULE_VERSION(linux_common, 1); 83 MODULE_DEPEND(linux_common, netlink, 1, 1, 1); 84