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 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/exec.h>
33 #include <sys/imgact.h>
34 #include <sys/imgact_elf.h>
35 #include <sys/kernel.h>
36 #include <sys/malloc.h>
37 #include <sys/sx.h>
38
39 #include <compat/linux/linux.h>
40 #include <compat/linux/linux_emul.h>
41 #include <compat/linux/linux_ioctl.h>
42 #include <compat/linux/linux_mib.h>
43 #include <compat/linux/linux_util.h>
44
45 SET_DECLARE(linux_device_handler_set, struct linux_device_handler);
46
47 TAILQ_HEAD(, linux_ioctl_handler_element) linux_ioctl_handlers =
48 TAILQ_HEAD_INITIALIZER(linux_ioctl_handlers);
49 struct sx linux_ioctl_sx;
50 SX_SYSINIT(linux_ioctl, &linux_ioctl_sx, "Linux ioctl handlers");
51
52 static int
53 linux_common_modevent(module_t mod, int type, void *data)
54 {
55 struct linux_device_handler **ldhp;
56
57 switch(type) {
58 case MOD_LOAD:
59 #ifdef INVARIANTS
60 linux_check_errtbl();
61 #endif
62 linux_dev_shm_create();
63 linux_osd_jail_register();
64 SET_FOREACH(ldhp, linux_device_handler_set)
65 linux_device_register_handler(*ldhp);
66 linux_netlink_register();
67 break;
68 case MOD_UNLOAD:
69 linux_dev_shm_destroy();
70 linux_osd_jail_deregister();
71 SET_FOREACH(ldhp, linux_device_handler_set)
72 linux_device_unregister_handler(*ldhp);
73 linux_netlink_deregister();
74 break;
75 default:
76 return (EOPNOTSUPP);
77 }
78 return (0);
79 }
80
81 static moduledata_t linux_common_mod = {
82 "linux_common",
83 linux_common_modevent,
84 0
85 };
86
87 DECLARE_MODULE(linux_common, linux_common_mod, SI_SUB_EXEC, SI_ORDER_ANY);
88 MODULE_VERSION(linux_common, 1);
89 MODULE_DEPEND(linux_common, netlink, 1, 1, 1);
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