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/*
This file is part of Kismet
Kismet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Kismet is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Kismet; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "ifcontrol.h"
#if defined(SYS_LINUX) || defined(SYS_NETBSD) || defined(SYS_OPENBSD) || \
defined(SYS_FREEBSD) || defined(SYS_DARWIN)
int Ifconfig_Set_Flags(const char *in_dev, char *errstr, int flags) {
struct ifreq ifr;
int skfd;
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
snprintf(errstr, STATUS_MAX, "SetIFFlags: Failed to create AF_INET "
"DGRAM socket. %d:%s", errno, strerror(errno));
return -1;
}
// Fetch interface flags
memset(&ifr, 0, sizeof ifr);
strncpy(ifr.ifr_name, in_dev, sizeof(ifr.ifr_name)-1);
#if defined(SYS_FREEBSD)
ifr.ifr_flags = flags & 0xFFFF;
ifr.ifr_flagshigh = flags >> 16;
#else
ifr.ifr_flags = flags;
#endif
if (ioctl(skfd, SIOCSIFFLAGS, &ifr) < 0) {
snprintf(errstr, STATUS_MAX, "SetIFFlags: Unknown interface %s: %s",
in_dev, strerror(errno));
close(skfd);
return -1;
}
close(skfd);
return 0;
}
int Ifconfig_Get_Flags(const char *in_dev, char *errstr, int *flags) {
struct ifreq ifr;
int skfd;
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
snprintf(errstr, STATUS_MAX, "GetIFFlags: Failed to create AF_INET "
"DGRAM socket. %d:%s",
errno, strerror(errno));
return -1;
}
// Fetch interface flags
memset(&ifr, 0, sizeof ifr);
strncpy(ifr.ifr_name, in_dev, sizeof(ifr.ifr_name)-1);
if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) {
snprintf(errstr, STATUS_MAX, "GetIFFlags: interface %s: %s",
in_dev, strerror(errno));
close(skfd);
return -1;
}
#if defined(SYS_FREEBSD)
(*flags) = (ifr.ifr_flags & 0xFFFF) | (ifr.ifr_flagshigh << 16);
#else
(*flags) = ifr.ifr_flags;
#endif
close(skfd);
return 0;
}
int Ifconfig_Delta_Flags(const char *in_dev, char *errstr, int flags) {
int ret;
int rflags;
if ((ret = Ifconfig_Get_Flags(in_dev, errstr, &rflags)) < 0)
return ret;
rflags |= flags;
return Ifconfig_Set_Flags(in_dev, errstr, rflags);
}
#ifdef SYS_LINUX
int Ifconfig_Get_Hwaddr(const char *in_dev, char *errstr, uint8_t *ret_hwaddr) {
struct ifreq ifr;
int skfd;
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
snprintf(errstr, STATUS_MAX, "Getting HWAddr: failed to create AF_INET "
"DGRAM socket. %d:%s", errno, strerror(errno));
return -1;
}
// Fetch interface flags
memset(&ifr, 0, sizeof ifr);
strncpy(ifr.ifr_name, in_dev, sizeof(ifr.ifr_name)-1);
if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0) {
snprintf(errstr, STATUS_MAX, "Getting HWAddr: unknown interface %s: %s",
in_dev, strerror(errno));
close(skfd);
return -1;
}
memcpy(ret_hwaddr, ifr.ifr_hwaddr.sa_data, 6);
close(skfd);
return 0;
}
int Ifconfig_Set_Hwaddr(const char *in_dev, char *errstr, uint8_t *in_hwaddr) {
struct ifreq ifr;
int skfd;
// struct sockaddr sa;
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
snprintf(errstr, STATUS_MAX, "Setting HWAddr: failed to create AF_INET "
"DGRAM socket. %d:%s", errno, strerror(errno));
return -1;
}
memset(&ifr, 0, sizeof ifr);
strncpy(ifr.ifr_name, in_dev, sizeof(ifr.ifr_name)-1);
memcpy(ifr.ifr_hwaddr.sa_data, in_hwaddr, 6);
ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
// memcpy((char *) &ifr.ifr_hwaddr, (char *) &sa, sizeof(struct sockaddr));
if (ioctl(skfd, SIOCSIFHWADDR, &ifr) < 0) {
snprintf(errstr, STATUS_MAX, "Setting HWAddr: interface %s: %s",
in_dev, strerror(errno));
close(skfd);
return -1;
}
close(skfd);
return 0;
}
int Ifconfig_Set_MTU(const char *in_dev, char *errstr, uint16_t in_mtu) {
struct ifreq ifr;
int skfd;
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
snprintf(errstr, STATUS_MAX, "Setting MTU: failed to create AF_INET "
"DGRAM socket. %d:%s", errno, strerror(errno));
return -1;
}
// Fetch interface flags
memset(&ifr, 0, sizeof ifr);
strncpy(ifr.ifr_name, in_dev, sizeof(ifr.ifr_name)-1);
ifr.ifr_mtu = in_mtu;
if (ioctl(skfd, SIOCSIFMTU, &ifr) < 0) {
snprintf(errstr, STATUS_MAX, "Setting MTU: unknown interface %s: %s",
in_dev, strerror(errno));
close(skfd);
return -1;
}
close(skfd);
return 0;
}
#endif
#endif
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