2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1999 Bill Paul <wpaul@ctr.columbia.edu>
5 * Copyright (c) 2012 ADARA Networks, Inc.
8 * Portions of this software were developed by Robert N. M. Watson under
9 * contract to ADARA Networks, Inc.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by Bill Paul.
22 * 4. Neither the name of the author nor the names of any co-contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
36 * THE POSSIBILITY OF SUCH DAMAGE.
39 #include <sys/param.h>
40 #include <sys/ioctl.h>
41 #include <sys/socket.h>
42 #include <sys/sockio.h>
47 #include <net/ethernet.h>
49 #include <net/if_vlan_var.h>
50 #include <net/route.h>
63 static const char rcsid[] =
67 #define NOTAG ((u_short) -1)
69 static struct vlanreq params = {
74 getvlan(int s, struct ifreq *ifr, struct vlanreq *vreq)
76 bzero((char *)vreq, sizeof(*vreq));
77 ifr->ifr_data = (caddr_t)vreq;
79 return ioctl(s, SIOCGETVLAN, (caddr_t)ifr);
87 if (getvlan(s, &ifr, &vreq) == -1)
89 printf("\tvlan: %d", vreq.vlr_tag);
90 if (ioctl(s, SIOCGVLANPCP, (caddr_t)&ifr) != -1)
91 printf(" vlanpcp: %u", ifr.ifr_vlan_pcp);
92 printf(" parent interface: %s", vreq.vlr_parent[0] == '\0' ?
93 "<none>" : vreq.vlr_parent);
98 vlan_create(int s, struct ifreq *ifr)
100 if (params.vlr_tag != NOTAG || params.vlr_parent[0] != '\0') {
102 * One or both parameters were specified, make sure both.
104 if (params.vlr_tag == NOTAG)
105 errx(1, "must specify a tag for vlan create");
106 if (params.vlr_parent[0] == '\0')
107 errx(1, "must specify a parent device for vlan create");
108 ifr->ifr_data = (caddr_t) ¶ms;
110 if (ioctl(s, SIOCIFCREATE2, ifr) < 0)
111 err(1, "SIOCIFCREATE2");
115 vlan_cb(int s, void *arg)
117 if ((params.vlr_tag != NOTAG) ^ (params.vlr_parent[0] != '\0'))
118 errx(1, "both vlan and vlandev must be specified");
122 vlan_set(int s, struct ifreq *ifr)
124 if (params.vlr_tag != NOTAG && params.vlr_parent[0] != '\0') {
125 ifr->ifr_data = (caddr_t) ¶ms;
126 if (ioctl(s, SIOCSETVLAN, (caddr_t)ifr) == -1)
127 err(1, "SIOCSETVLAN");
132 DECL_CMD_FUNC(setvlantag, val, d)
138 ul = strtoul(val, &endp, 0);
140 errx(1, "invalid value for vlan");
142 /* check if the value can be represented in vlr_tag */
143 if (params.vlr_tag != ul)
144 errx(1, "value for vlan out of range");
146 if (getvlan(s, &ifr, &vreq) != -1)
151 DECL_CMD_FUNC(setvlandev, val, d)
155 strlcpy(params.vlr_parent, val, sizeof(params.vlr_parent));
157 if (getvlan(s, &ifr, &vreq) != -1)
162 DECL_CMD_FUNC(setvlanpcp, val, d)
167 ul = strtoul(val, &endp, 0);
169 errx(1, "invalid value for vlanpcp");
171 errx(1, "value for vlanpcp out of range");
172 ifr.ifr_vlan_pcp = ul;
173 if (ioctl(s, SIOCSVLANPCP, (caddr_t)&ifr) == -1)
174 err(1, "SIOCSVLANPCP");
178 DECL_CMD_FUNC(unsetvlandev, val, d)
182 bzero((char *)&vreq, sizeof(struct vlanreq));
183 ifr.ifr_data = (caddr_t)&vreq;
185 if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
186 err(1, "SIOCGETVLAN");
188 bzero((char *)&vreq.vlr_parent, sizeof(vreq.vlr_parent));
191 if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
192 err(1, "SIOCSETVLAN");
195 static struct cmd vlan_cmds[] = {
196 DEF_CLONE_CMD_ARG("vlan", setvlantag),
197 DEF_CLONE_CMD_ARG("vlandev", setvlandev),
198 DEF_CMD_ARG("vlanpcp", setvlanpcp),
199 /* NB: non-clone cmds */
200 DEF_CMD_ARG("vlan", setvlantag),
201 DEF_CMD_ARG("vlandev", setvlandev),
202 /* XXX For compatibility. Should become DEF_CMD() some day. */
203 DEF_CMD_OPTARG("-vlandev", unsetvlandev),
204 DEF_CMD("vlanmtu", IFCAP_VLAN_MTU, setifcap),
205 DEF_CMD("-vlanmtu", -IFCAP_VLAN_MTU, setifcap),
206 DEF_CMD("vlanhwtag", IFCAP_VLAN_HWTAGGING, setifcap),
207 DEF_CMD("-vlanhwtag", -IFCAP_VLAN_HWTAGGING, setifcap),
208 DEF_CMD("vlanhwfilter", IFCAP_VLAN_HWFILTER, setifcap),
209 DEF_CMD("-vlanhwfilter", -IFCAP_VLAN_HWFILTER, setifcap),
210 DEF_CMD("-vlanhwtso", -IFCAP_VLAN_HWTSO, setifcap),
211 DEF_CMD("vlanhwtso", IFCAP_VLAN_HWTSO, setifcap),
212 DEF_CMD("vlanhwcsum", IFCAP_VLAN_HWCSUM, setifcap),
213 DEF_CMD("-vlanhwcsum", -IFCAP_VLAN_HWCSUM, setifcap),
215 static struct afswtch af_vlan = {
216 .af_name = "af_vlan",
218 .af_other_status = vlan_status,
221 static __constructor void
226 for (i = 0; i < nitems(vlan_cmds); i++)
227 cmd_register(&vlan_cmds[i]);
228 af_register(&af_vlan);
229 callback_register(vlan_cb, NULL);
230 clone_setdefcallback("vlan", vlan_create);