1 /* $NetBSD: tap_component.c,v 1.4 2016/08/08 09:29:45 pgoyette Exp $ */
2
3 /*
4 * Copyright (c) 2015 Wei Liu. 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 ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * 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 OR
21 * 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 __KERNEL_RCSID(0, "$NetBSD: tap_component.c,v 1.4 2016/08/08 09:29:45 pgoyette Exp $");
30
31 #include <sys/param.h>
32 #include <sys/device.h>
33 #include <sys/stat.h>
34
35 #include <rump-sys/kern.h>
36 #include <rump-sys/vfs.h>
37
38 #include "ioconf.h"
39
RUMP_COMPONENT(RUMP_COMPONENT_NET_IF)40 RUMP_COMPONENT(RUMP_COMPONENT_NET_IF)
41 {
42 extern const struct cdevsw tap_cdevsw;
43 extern devmajor_t tap_bmajor, tap_cmajor;
44 int error;
45
46 error = devsw_attach("tap", NULL, &tap_bmajor,
47 &tap_cdevsw, &tap_cmajor);
48 if (error != 0)
49 panic("tap devsw attach failed: %d", error);
50
51 error = rump_vfs_makeonedevnode(S_IFCHR, "/dev/tap", tap_cmajor,
52 0xfffff);
53 if (error != 0)
54 panic("cannot create tap device node: %d", error);
55
56 error = rump_vfs_makedevnodes(S_IFCHR, "/dev/tap", '0', tap_cmajor,
57 0, 4);
58 if (error != 0)
59 panic("cannot create tap[0-4] device node: %d", error);
60
61 devsw_detach(NULL, &tap_cdevsw);
62 }
63