260 lines
7.2 KiB
C
260 lines
7.2 KiB
C
/*
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* Copyright (c) 1999 Bill Paul <wpaul@ctr.columbia.edu>
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* Copyright (c) 2012 ADARA Networks, Inc.
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* All rights reserved.
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*
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* Portions of this software were developed by Robert N. M. Watson under
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* contract to ADARA Networks, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_vlan_var.h>
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#include <net/route.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <err.h>
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#include <errno.h>
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#include "ifconfig.h"
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif
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#define NOTAG ((u_short) -1)
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static struct vlanreq params = {
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.vlr_tag = NOTAG,
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};
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static int
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getvlan(int s, struct ifreq *ifr, struct vlanreq *vreq)
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{
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bzero((char *)vreq, sizeof(*vreq));
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ifr->ifr_data = (caddr_t)vreq;
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#ifndef FSTACK
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return ioctl(s, SIOCGETVLAN, (caddr_t)ifr);
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#else
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size_t offset = (char *)&(ifr->ifr_data) - (char *)ifr;
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size_t clen = sizeof(*vreq);
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return ioctl_va(s, SIOCGETVLAN, (caddr_t)ifr, 3, offset, ifr->ifr_data, clen);
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#endif
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}
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static void
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vlan_status(int s)
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{
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struct vlanreq vreq;
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if (getvlan(s, &ifr, &vreq) == -1)
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return;
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printf("\tvlan: %d", vreq.vlr_tag);
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if (ioctl(s, SIOCGVLANPCP, (caddr_t)&ifr) != -1)
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printf(" vlanpcp: %u", ifr.ifr_vlan_pcp);
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printf(" parent interface: %s", vreq.vlr_parent[0] == '\0' ?
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"<none>" : vreq.vlr_parent);
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printf("\n");
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}
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static void
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vlan_create(int s, struct ifreq *ifr)
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{
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if (params.vlr_tag != NOTAG || params.vlr_parent[0] != '\0') {
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/*
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* One or both parameters were specified, make sure both.
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*/
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if (params.vlr_tag == NOTAG)
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errx(1, "must specify a tag for vlan create");
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if (params.vlr_parent[0] == '\0')
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errx(1, "must specify a parent device for vlan create");
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ifr->ifr_data = (caddr_t) ¶ms;
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#ifdef FSTACK
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size_t offset = (char *)&(ifr->ifr_data) - (char *)ifr;
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size_t clen = sizeof(params);
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if (ioctl_va(s, SIOCIFCREATE2, ifr, 3, offset, ifr->ifr_data, clen) < 0)
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err(1, "SIOCIFCREATE2");
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return;
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#endif
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}
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if (ioctl(s, SIOCIFCREATE2, ifr) < 0)
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err(1, "SIOCIFCREATE2");
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}
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static void
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vlan_cb(int s, void *arg)
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{
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if ((params.vlr_tag != NOTAG) ^ (params.vlr_parent[0] != '\0'))
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errx(1, "both vlan and vlandev must be specified");
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}
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static void
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vlan_set(int s, struct ifreq *ifr)
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{
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if (params.vlr_tag != NOTAG && params.vlr_parent[0] != '\0') {
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ifr->ifr_data = (caddr_t) ¶ms;
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#ifndef FSTACK
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if (ioctl(s, SIOCSETVLAN, (caddr_t)ifr) == -1)
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#else
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size_t offset = (char *)&(ifr->ifr_data) - (char *)ifr;
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size_t clen = sizeof(params);
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if (ioctl_va(s, SIOCSETVLAN, ifr, 3, offset, ifr->ifr_data, clen) == -1)
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#endif
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err(1, "SIOCSETVLAN");
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}
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}
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static
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DECL_CMD_FUNC(setvlantag, val, d)
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{
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struct vlanreq vreq;
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u_long ul;
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char *endp;
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ul = strtoul(val, &endp, 0);
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if (*endp != '\0')
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errx(1, "invalid value for vlan");
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params.vlr_tag = ul;
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/* check if the value can be represented in vlr_tag */
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if (params.vlr_tag != ul)
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errx(1, "value for vlan out of range");
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if (getvlan(s, &ifr, &vreq) != -1)
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vlan_set(s, &ifr);
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}
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static
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DECL_CMD_FUNC(setvlandev, val, d)
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{
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struct vlanreq vreq;
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strlcpy(params.vlr_parent, val, sizeof(params.vlr_parent));
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if (getvlan(s, &ifr, &vreq) != -1)
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vlan_set(s, &ifr);
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}
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static
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DECL_CMD_FUNC(setvlanpcp, val, d)
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{
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u_long ul;
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char *endp;
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ul = strtoul(val, &endp, 0);
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if (*endp != '\0')
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errx(1, "invalid value for vlanpcp");
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if (ul > 7)
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errx(1, "value for vlanpcp out of range");
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ifr.ifr_vlan_pcp = ul;
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if (ioctl(s, SIOCSVLANPCP, (caddr_t)&ifr) == -1)
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err(1, "SIOCSVLANPCP");
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}
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static
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DECL_CMD_FUNC(unsetvlandev, val, d)
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{
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struct vlanreq vreq;
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bzero((char *)&vreq, sizeof(struct vlanreq));
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ifr.ifr_data = (caddr_t)&vreq;
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#ifndef FSTACK
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if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
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#else
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size_t offset = (char *)&(ifr.ifr_data) - (char *)&(ifr);
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size_t clen = sizeof(vreq);
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if (ioctl_va(s, SIOCGETVLAN, (caddr_t)&ifr, 3, offset, ifr.ifr_data, clen) == -1)
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#endif
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err(1, "SIOCGETVLAN");
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bzero((char *)&vreq.vlr_parent, sizeof(vreq.vlr_parent));
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vreq.vlr_tag = 0;
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#ifndef FSTACK
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if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
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#else
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if (ioctl_va(s, SIOCSETVLAN, (caddr_t)&ifr, 3, offset, ifr.ifr_data, clen) == -1)
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#endif
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err(1, "SIOCSETVLAN");
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}
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static struct cmd vlan_cmds[] = {
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DEF_CLONE_CMD_ARG("vlan", setvlantag),
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DEF_CLONE_CMD_ARG("vlandev", setvlandev),
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DEF_CMD_ARG("vlanpcp", setvlanpcp),
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/* NB: non-clone cmds */
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DEF_CMD_ARG("vlan", setvlantag),
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DEF_CMD_ARG("vlandev", setvlandev),
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/* XXX For compatibility. Should become DEF_CMD() some day. */
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DEF_CMD_OPTARG("-vlandev", unsetvlandev),
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DEF_CMD("vlanmtu", IFCAP_VLAN_MTU, setifcap),
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DEF_CMD("-vlanmtu", -IFCAP_VLAN_MTU, setifcap),
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DEF_CMD("vlanhwtag", IFCAP_VLAN_HWTAGGING, setifcap),
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DEF_CMD("-vlanhwtag", -IFCAP_VLAN_HWTAGGING, setifcap),
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DEF_CMD("vlanhwfilter", IFCAP_VLAN_HWFILTER, setifcap),
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DEF_CMD("-vlanhwfilter", -IFCAP_VLAN_HWFILTER, setifcap),
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DEF_CMD("-vlanhwtso", -IFCAP_VLAN_HWTSO, setifcap),
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DEF_CMD("vlanhwtso", IFCAP_VLAN_HWTSO, setifcap),
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DEF_CMD("vlanhwcsum", IFCAP_VLAN_HWCSUM, setifcap),
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DEF_CMD("-vlanhwcsum", -IFCAP_VLAN_HWCSUM, setifcap),
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};
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static struct afswtch af_vlan = {
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.af_name = "af_vlan",
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.af_af = AF_UNSPEC,
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.af_other_status = vlan_status,
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};
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static __constructor void
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vlan_ctor(void)
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{
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size_t i;
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for (i = 0; i < nitems(vlan_cmds); i++)
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cmd_register(&vlan_cmds[i]);
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af_register(&af_vlan);
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callback_register(vlan_cb, NULL);
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clone_setdefcallback("vlan", vlan_create);
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}
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