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>
41 #include <net/if_var.h>
42 #include <net/route.h>
43 #include <net/ethernet.h>
44 #include <net/vlan/if_vlan_var.h>
56 static struct vlanreq __vreq
;
57 static int __have_dev
= 0;
58 static int __have_tag
= 0;
65 bzero((char *)&vreq
, sizeof(vreq
));
66 ifr
.ifr_data
= (caddr_t
)&vreq
;
68 if (ioctl(s
, SIOCGETVLAN
, (caddr_t
)&ifr
) == -1)
71 printf("\tvlan: %d parent interface: %s\n",
72 vreq
.vlr_tag
, vreq
.vlr_parent
[0] == '\0' ?
73 "<none>" : vreq
.vlr_parent
);
77 setvlantag(const char *val
, int d
, int s
, const struct afswtch
*afp
)
82 ul
= strtoul(val
, &endp
, 0);
84 errx(1, "invalid value for vlan");
86 /* check if the value can be represented in vlr_tag */
87 if (__vreq
.vlr_tag
!= ul
)
88 errx(1, "value for vlan out of range");
89 /* the kernel will do more specific checks on vlr_tag */
94 setvlandev(const char *val
, int d
, int s
, const struct afswtch
*afp
)
97 strlcpy(__vreq
.vlr_parent
, val
, sizeof(__vreq
.vlr_parent
));
102 unsetvlandev(const char *val
, int d
, int s
, const struct afswtch
*afp
)
106 warnx("argument to -vlandev is useless and hence deprecated");
108 bzero((char *)&__vreq
, sizeof(__vreq
));
109 ifr
.ifr_data
= (caddr_t
)&__vreq
;
110 #if 0 /* this code will be of use when we can alter vlan or vlandev only */
111 if (ioctl(s
, SIOCGETVLAN
, (caddr_t
)&ifr
) == -1)
112 err(1, "SIOCGETVLAN");
114 bzero((char *)&__vreq
.vlr_parent
, sizeof(__vreq
.vlr_parent
));
115 __vreq
.vlr_tag
= 0; /* XXX clear parent only (no kernel support now) */
117 if (ioctl(s
, SIOCSETVLAN
, (caddr_t
)&ifr
) == -1)
118 err(1, "SIOCSETVLAN");
119 __have_dev
= __have_tag
= 0;
123 vlan_cb(int s
, void *arg
)
126 if (__have_tag
^ __have_dev
)
127 errx(1, "both vlan and vlandev must be specified");
129 if (__have_tag
&& __have_dev
) {
130 ifr
.ifr_data
= (caddr_t
)&__vreq
;
131 if (ioctl(s
, SIOCSETVLAN
, (caddr_t
)&ifr
) == -1)
132 err(1, "SIOCSETVLAN");
136 static struct cmd vlan_cmds
[] = {
137 DEF_CMD_ARG("vlan", setvlantag
),
138 DEF_CMD_ARG("vlandev", setvlandev
),
139 /* XXX For compatibility. Should become DEF_CMD() some day. */
140 DEF_CMD_OPTARG("-vlandev", unsetvlandev
),
141 DEF_CMD("vlanmtu", IFCAP_VLAN_MTU
, setifcap
),
142 DEF_CMD("-vlanmtu", -IFCAP_VLAN_MTU
, setifcap
),
143 DEF_CMD("vlanhwtag", IFCAP_VLAN_HWTAGGING
, setifcap
),
144 DEF_CMD("-vlanhwtag", -IFCAP_VLAN_HWTAGGING
, setifcap
),
146 static struct afswtch af_vlan
= {
147 .af_name
= "af_vlan",
149 .af_other_status
= vlan_status
,
152 static __constructor(101) void
157 for (i
= 0; i
< nitems(vlan_cmds
); i
++)
158 cmd_register(&vlan_cmds
[i
]);
159 af_register(&af_vlan
);
160 callback_register(vlan_cb
, NULL
);