3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
32 * $FreeBSD: src/sbin/ifconfig/ifvlan.c,v 1.7.2.4 2006/02/09 10:48:43 yar Exp $
35 #include <sys/param.h>
36 #include <sys/ioctl.h>
37 #include <sys/socket.h>
38 #include <sys/sockio.h>
43 #include <net/ethernet.h>
45 #include <net/if_var.h>
46 #include <net/vlan/if_vlan_var.h>
47 #include <net/route.h>
59 static struct vlanreq __vreq;
60 static int __have_dev = 0;
61 static int __have_tag = 0;
68 bzero((char *)&vreq, sizeof(vreq));
69 ifr.ifr_data = (caddr_t)&vreq;
71 if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
74 printf("\tvlan: %d parent interface: %s\n",
75 vreq.vlr_tag, vreq.vlr_parent[0] == '\0' ?
76 "<none>" : vreq.vlr_parent);
80 setvlantag(const char *val, int d, int s, const struct afswtch *afp)
85 ul = strtoul(val, &endp, 0);
87 errx(1, "invalid value for vlan");
89 /* check if the value can be represented in vlr_tag */
90 if (__vreq.vlr_tag != ul)
91 errx(1, "value for vlan out of range");
92 /* the kernel will do more specific checks on vlr_tag */
97 setvlandev(const char *val, int d, int s, const struct afswtch *afp)
100 strncpy(__vreq.vlr_parent, val, sizeof(__vreq.vlr_parent));
105 unsetvlandev(const char *val, int d, int s, const struct afswtch *afp)
109 warnx("argument to -vlandev is useless and hence deprecated");
111 bzero((char *)&__vreq, sizeof(__vreq));
112 ifr.ifr_data = (caddr_t)&__vreq;
113 #if 0 /* this code will be of use when we can alter vlan or vlandev only */
114 if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
115 err(1, "SIOCGETVLAN");
117 bzero((char *)&__vreq.vlr_parent, sizeof(__vreq.vlr_parent));
118 __vreq.vlr_tag = 0; /* XXX clear parent only (no kernel support now) */
120 if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
121 err(1, "SIOCSETVLAN");
122 __have_dev = __have_tag = 0;
126 vlan_cb(int s, void *arg)
129 if (__have_tag ^ __have_dev)
130 errx(1, "both vlan and vlandev must be specified");
132 if (__have_tag && __have_dev) {
133 ifr.ifr_data = (caddr_t)&__vreq;
134 if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
135 err(1, "SIOCSETVLAN");
139 static struct cmd vlan_cmds[] = {
140 DEF_CMD_ARG("vlan", setvlantag),
141 DEF_CMD_ARG("vlandev", setvlandev),
142 /* XXX For compatibility. Should become DEF_CMD() some day. */
143 DEF_CMD_OPTARG("-vlandev", unsetvlandev),
144 DEF_CMD("vlanmtu", IFCAP_VLAN_MTU, setifcap),
145 DEF_CMD("-vlanmtu", -IFCAP_VLAN_MTU, setifcap),
146 DEF_CMD("vlanhwtag", IFCAP_VLAN_HWTAGGING, setifcap),
147 DEF_CMD("-vlanhwtag", -IFCAP_VLAN_HWTAGGING, setifcap),
149 static struct afswtch af_vlan = {
150 .af_name = "af_vlan",
152 .af_other_status = vlan_status,
155 static __constructor(101) void
158 #define N(a) (sizeof(a) / sizeof(a[0]))
161 for (i = 0; i < N(vlan_cmds); i++)
162 cmd_register(&vlan_cmds[i]);
163 af_register(&af_vlan);
164 callback_register(vlan_cb, NULL);