ifvlan.c revision 50476 
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 * $FreeBSD: head/sbin/ifconfig/ifvlan.c 50476 1999-08-28 00:22:10Z peter $
33 */
34
35#include <sys/param.h>
36#include <sys/ioctl.h>
37#include <sys/socket.h>
38#include <sys/sockio.h>
39#include <sys/mbuf.h>
40
41#include <stdlib.h>
42#include <unistd.h>
43
44#include <net/ethernet.h>
45#include <net/if.h>
46#include <net/if_var.h>
47#include <net/if_vlan_var.h>
48#include <net/route.h>
49
50#include <ctype.h>
51#include <stdio.h>
52#include <string.h>
53#include <stdlib.h>
54#include <unistd.h>
55#include <err.h>
56#include <errno.h>
57
58#include "ifconfig.h"
59
60#ifndef lint
61static const char rcsid[] =
62  "$FreeBSD: head/sbin/ifconfig/ifvlan.c 50476 1999-08-28 00:22:10Z peter $";
63#endif
64static int			__tag = 0;
65static int			__have_tag = 0;
66
67void vlan_status(s, info)
68	int			s;
69	struct rt_addrinfo *info __unused;
70{
71	struct vlanreq		vreq;
72
73	bzero((char *)&vreq, sizeof(struct vlanreq));
74	ifr.ifr_data = (caddr_t)&vreq;
75
76	if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
77		return;
78
79	printf("\tvlan: %d parent interface: %s\n",
80	    vreq.vlr_tag, vreq.vlr_parent[0] == '\0' ?
81	    "<none>" : vreq.vlr_parent);
82
83	return;
84}
85
86void setvlantag(val, d, s, afp)
87	const char		*val;
88	int			d, s;
89	const struct afswtch	*afp;
90{
91	u_int16_t		tag;
92	struct vlanreq		vreq;
93
94	__tag = tag = atoi(val);
95	__have_tag = 1;
96
97	bzero((char *)&vreq, sizeof(struct vlanreq));
98	ifr.ifr_data = (caddr_t)&vreq;
99
100	if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
101		err(1, "SIOCGETVLAN");
102
103	vreq.vlr_tag = tag;
104
105	if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
106		err(1, "SIOCSETVLAN");
107
108	return;
109}
110
111void setvlandev(val, d, s, afp)
112	const char		*val;
113	int			d, s;
114	const struct afswtch	*afp;
115{
116	struct vlanreq		vreq;
117
118	if (!__have_tag)
119		errx(1, "must specify both vlan tag and device");
120
121	bzero((char *)&vreq, sizeof(struct vlanreq));
122	ifr.ifr_data = (caddr_t)&vreq;
123
124	if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
125		err(1, "SIOCGETVLAN");
126
127	strncpy(vreq.vlr_parent, val, sizeof(vreq.vlr_parent));
128	vreq.vlr_tag = __tag;
129
130	if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
131		err(1, "SIOCSETVLAN");
132
133	return;
134}
135
136void unsetvlandev(val, d, s, afp)
137	const char		*val;
138	int			d, s;
139	const struct afswtch	*afp;
140{
141	struct vlanreq		vreq;
142
143	bzero((char *)&vreq, sizeof(struct vlanreq));
144	ifr.ifr_data = (caddr_t)&vreq;
145
146	if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
147		err(1, "SIOCGETVLAN");
148
149	bzero((char *)&vreq.vlr_parent, sizeof(vreq.vlr_parent));
150	vreq.vlr_tag = 0;
151
152	if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
153		err(1, "SIOCSETVLAN");
154
155	return;
156}
157