mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2017, Marie Helene Kvello-Aune
|
|
* 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,
|
|
* thislist 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <net/if.h>
|
|
#include <sys/ioctl.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <libifconfig.h>
|
|
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
char *parentif, *ifactualname;
|
|
unsigned short vlantag;
|
|
const char *errstr;
|
|
ifconfig_handle_t *lifh;
|
|
|
|
if (argc != 3) {
|
|
errx(EINVAL, "Invalid number of arguments."
|
|
" Should provide exactly two arguments: "
|
|
"PARENT_INTERFACE and VLAN_TAG.");
|
|
}
|
|
|
|
/* We have a static number of arguments. Therefore we can do it simple. */
|
|
parentif = strdup(argv[1]);
|
|
vlantag = strtonum(argv[2], 0, USHRT_MAX, &errstr);
|
|
|
|
if (errstr != NULL) {
|
|
errx(1, "VLAN_TAG must be between 0 and %i.\n", USHRT_MAX);
|
|
}
|
|
|
|
printf("Parent interface: %s\nVLAN tag: %i\n", parentif, vlantag);
|
|
|
|
lifh = ifconfig_open();
|
|
if (lifh == NULL) {
|
|
errx(ENOMEM, "Failed to open libifconfig handle.");
|
|
return (-1);
|
|
}
|
|
|
|
if (ifconfig_create_interface_vlan(lifh, "vlan", &ifactualname,
|
|
parentif, vlantag) == 0) {
|
|
printf("Successfully created interface '%s'\n", ifactualname);
|
|
ifconfig_close(lifh);
|
|
lifh = NULL;
|
|
free(parentif);
|
|
free(ifactualname);
|
|
return (0);
|
|
}
|
|
|
|
switch (ifconfig_err_errtype(lifh)) {
|
|
case SOCKET:
|
|
warnx("couldn't create socket. This shouldn't happen.\n");
|
|
break;
|
|
case IOCTL:
|
|
if (ifconfig_err_ioctlreq(lifh) == SIOCIFCREATE2) {
|
|
warnx(
|
|
"Failed to create interface (SIOCIFCREATE2)\n");
|
|
}
|
|
break;
|
|
default:
|
|
warnx(
|
|
"This is a thorough example accommodating for temporary"
|
|
" 'not implemented yet' errors. That's likely what happened"
|
|
" now. If not, your guess is as good as mine. ;)"
|
|
" Error code: %d\n", ifconfig_err_errno(
|
|
lifh));
|
|
break;
|
|
}
|
|
|
|
ifconfig_close(lifh);
|
|
lifh = NULL;
|
|
free(parentif);
|
|
free(ifactualname);
|
|
return (-1);
|
|
}
|