ifvlan.c revision 81586 
1/*
2 * Copyright (c) 1999
3 *	Bill Paul <wpaul@ctr.columbia.edu>.  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 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/param.h>
34#include <sys/ioctl.h>
35#include <sys/socket.h>
36#include <sys/sockio.h>
37#include <sys/mbuf.h>
38
39#include <stdlib.h>
40#include <unistd.h>
41
42#include <net/ethernet.h>
43#include <net/if.h>
44#include <net/if_var.h>
45#include <net/if_vlan_var.h>
46#include <net/route.h>
47
48#include <ctype.h>
49#include <stdio.h>
50#include <string.h>
51#include <stdlib.h>
52#include <unistd.h>
53#include <err.h>
54#include <errno.h>
55
56#include "ifconfig.h"
57
58#ifndef lint
59static const char rcsid[] =
60  "$FreeBSD: head/sbin/ifconfig/ifvlan.c 81586 2001-08-13 14:06:34Z ru $";
61#endif
62static int			__tag = 0;
63static int			__have_tag = 0;
64
65void vlan_status(s, info)
66	int			s;
67	struct rt_addrinfo *info __unused;
68{
69	struct vlanreq		vreq;
70
71	bzero((char *)&vreq, sizeof(struct vlanreq));
72	ifr.ifr_data = (caddr_t)&vreq;
73
74	if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
75		return;
76
77	printf("\tvlan: %d parent interface: %s\n",
78	    vreq.vlr_tag, vreq.vlr_parent[0] == '\0' ?
79	    "<none>" : vreq.vlr_parent);
80
81	return;
82}
83
84void setvlantag(val, d, s, afp)
85	const char		*val;
86	int			d, s;
87	const struct afswtch	*afp;
88{
89	u_int16_t		tag;
90	struct vlanreq		vreq;
91
92	__tag = tag = atoi(val);
93	__have_tag = 1;
94
95	bzero((char *)&vreq, sizeof(struct vlanreq));
96	ifr.ifr_data = (caddr_t)&vreq;
97
98	if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
99		err(1, "SIOCGETVLAN");
100
101	vreq.vlr_tag = tag;
102
103	if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
104		err(1, "SIOCSETVLAN");
105
106	return;
107}
108
109void setvlandev(val, d, s, afp)
110	const char		*val;
111	int			d, s;
112	const struct afswtch	*afp;
113{
114	struct vlanreq		vreq;
115
116	if (!__have_tag)
117		errx(1, "must specify both vlan tag and device");
118
119	bzero((char *)&vreq, sizeof(struct vlanreq));
120	ifr.ifr_data = (caddr_t)&vreq;
121
122	if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
123		err(1, "SIOCGETVLAN");
124
125	strncpy(vreq.vlr_parent, val, sizeof(vreq.vlr_parent));
126	vreq.vlr_tag = __tag;
127
128	if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
129		err(1, "SIOCSETVLAN");
130
131	return;
132}
133
134void unsetvlandev(val, d, s, afp)
135	const char		*val;
136	int			d, s;
137	const struct afswtch	*afp;
138{
139	struct vlanreq		vreq;
140
141	bzero((char *)&vreq, sizeof(struct vlanreq));
142	ifr.ifr_data = (caddr_t)&vreq;
143
144	if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
145		err(1, "SIOCGETVLAN");
146
147	bzero((char *)&vreq.vlr_parent, sizeof(vreq.vlr_parent));
148	vreq.vlr_tag = 0;
149
150	if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
151		err(1, "SIOCSETVLAN");
152
153	return;
154}
155