/* * Copyright (c) 1999 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: src/sbin/ifconfig/ifvlan.c,v 1.7.2.4 2006/02/09 10:48:43 yar Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ifconfig.h" static struct vlanreq __vreq; static int __have_dev = 0; static int __have_tag = 0; static void vlan_status(int s) { struct vlanreq vreq; struct ifreq ifr; memset(&ifr, 0, sizeof(ifr)); memset(&vreq, 0, sizeof(vreq)); strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); ifr.ifr_data = &vreq; if (ioctl(s, SIOCGETVLAN, &ifr) == -1) return; printf("\tvlan: %d parent interface: %s\n", vreq.vlr_tag, vreq.vlr_parent[0] == '\0' ? "" : vreq.vlr_parent); } static void setvlantag(const char *val, int d __unused, int s __unused, const struct afswtch *afp __unused) { char *endp; u_long ul; ul = strtoul(val, &endp, 0); if (*endp != '\0') errx(1, "invalid value for vlan"); __vreq.vlr_tag = ul; /* check if the value can be represented in vlr_tag */ if (__vreq.vlr_tag != ul) errx(1, "value for vlan out of range"); /* the kernel will do more specific checks on vlr_tag */ __have_tag = 1; } static void setvlandev(const char *val, int d __unused, int s __unused, const struct afswtch *afp __unused) { strlcpy(__vreq.vlr_parent, val, sizeof(__vreq.vlr_parent)); __have_dev = 1; } static void unsetvlandev(const char *val, int d __unused, int s, const struct afswtch *afp __unused) { struct ifreq ifr; if (val != NULL) warnx("argument to -vlandev is useless and hence deprecated"); memset(&ifr, 0, sizeof(ifr)); memset(&__vreq, 0, sizeof(__vreq)); strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); ifr.ifr_data = &__vreq; #if 0 /* this code will be of use when we can alter vlan or vlandev only */ if (ioctl(s, SIOCGETVLAN, &ifr) == -1) err(1, "SIOCGETVLAN"); memset(&__vreq.vlr_parent, 0, sizeof(__vreq.vlr_parent)); __vreq.vlr_tag = 0; /* XXX clear parent only (no kernel support now) */ #endif if (ioctl(s, SIOCSETVLAN, &ifr) == -1) err(1, "SIOCSETVLAN"); __have_dev = __have_tag = 0; } static void vlan_cb(int s, void *arg __unused) { struct ifreq ifr; if (__have_tag ^ __have_dev) errx(1, "both vlan and vlandev must be specified"); if (__have_tag && __have_dev) { memset(&ifr, 0, sizeof(ifr)); strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); ifr.ifr_data = &__vreq; if (ioctl(s, SIOCSETVLAN, &ifr) == -1) err(1, "SIOCSETVLAN"); } } static struct cmd vlan_cmds[] = { DEF_CMD_ARG("vlan", setvlantag), DEF_CMD_ARG("vlandev", setvlandev), /* XXX For compatibility. Should become DEF_CMD() some day. */ DEF_CMD_OPTARG("-vlandev", unsetvlandev), DEF_CMD("vlanmtu", IFCAP_VLAN_MTU, setifcap), DEF_CMD("-vlanmtu", -IFCAP_VLAN_MTU, setifcap), DEF_CMD("vlanhwtag", IFCAP_VLAN_HWTAGGING, setifcap), DEF_CMD("-vlanhwtag", -IFCAP_VLAN_HWTAGGING, setifcap), }; static struct afswtch af_vlan = { .af_name = "af_vlan", .af_af = AF_UNSPEC, .af_other_status = vlan_status, }; __constructor(124) static void vlan_ctor(void) { size_t i; for (i = 0; i < nitems(vlan_cmds); i++) cmd_register(&vlan_cmds[i]); af_register(&af_vlan); callback_register(vlan_cb, NULL); }