diff options
Diffstat (limited to 'devices.c')
| -rw-r--r-- | devices.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/devices.c b/devices.c deleted file mode 100644 index 58c8054..0000000 --- a/devices.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - Mac-Telnet - Connect to RouterOS or mactelnetd devices via MAC address - Copyright (C) 2010, Håkon Nessjøen <haakon.nessjoen@gmail.com> - - This program 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. - - This program 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 this program; if not, write to the Free Software Foundation, Inc., - 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. -*/ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <netinet/in.h> -#include <linux/if_ether.h> -#include <sys/ioctl.h> -#include <net/if.h> - -#include <malloc.h> -#include <ifaddrs.h> -#include <sys/ioctl.h> -#include <net/if.h> -#include <netpacket/packet.h> -#include <netinet/in.h> - - -/* Functions using NETDEVICE api */ - -int get_device_index(int sockfd, char *device_name) { - struct ifreq ifr; - - /* Find interface index from device_name */ - strncpy(ifr.ifr_name, device_name, 16); - if (ioctl(sockfd, SIOCGIFINDEX, &ifr) != 0) { - return -1; - } - - /* Return interface index */ - return ifr.ifr_ifindex; -} - -int get_device_mac(const int sockfd, const char *device_name, unsigned char *mac) { - struct ifreq ifr; - - /* Find interface hardware address from device_name */ - strncpy(ifr.ifr_name, device_name, 16); - if (ioctl(sockfd, SIOCGIFHWADDR, &ifr) != 0) { - return -1; - } - - /* Fetch mac address */ - memcpy(mac, ifr.ifr_hwaddr.sa_data, ETH_ALEN); - return 1; -} - -int get_device_ip(const int sockfd, const char *device_name, struct sockaddr_in *ip) { - struct ifconf ifc; - struct ifreq *ifr; - int i,device_count; - - /* - * Do a initial query without allocating ifreq structs - * to count the number of ifreq structs to allocate memory for - */ - memset(&ifc, 0, sizeof(ifc)); - if (ioctl(sockfd, SIOCGIFCONF, &ifc) != 0) { - return -1; - } - - /* - * Allocate memory for interfaces, multiply by two in case - * the number of interfaces has increased since last ioctl - */ - if ((ifr = malloc(ifc.ifc_len * 2)) == NULL) { - perror("malloc"); - exit(1); - } - - /* Do the actual query for info about all interfaces */ - ifc.ifc_req = ifr; - if (ioctl(sockfd, SIOCGIFCONF, &ifc) != 0) { - free(ifr); - return -1; - } - - /* Iterate through all devices, searching for interface */ - device_count = ifc.ifc_len / sizeof(struct ifreq); - for (i = 0; i < device_count; ++i) { - if (strcmp(ifr[i].ifr_name, device_name) == 0) { - /* Fetch IP for found interface */ - memcpy(ip, &(ifr[i].ifr_addr), sizeof(struct sockaddr_in)); - free(ifr); - return 1; - } - } - free(ifr); - return -1; -} - -int get_macs(int sockfd, char *name, int name_len, unsigned char *mac) { - static int first = 1; - static struct ifaddrs *int_addrs; - static const struct ifaddrs *int_cursor; - const struct sockaddr_in *dl_addr; - - if (first == 1) { - first = 0; - if (getifaddrs(&int_addrs) == 0) { - int_cursor = int_addrs; - } else { - first = 1; - return 0; - } - } - if (int_cursor != NULL) { - while (int_cursor != NULL) { - dl_addr = (const struct sockaddr_in *) int_cursor->ifa_addr; - if (dl_addr != NULL && dl_addr->sin_family == AF_PACKET) { - strncpy(name, int_cursor->ifa_name, name_len - 1); - name[name_len - 1] = '\0'; - int_cursor = int_cursor->ifa_next; - if (get_device_mac(sockfd, name, mac)) { - return 1; - } - } - int_cursor = int_cursor->ifa_next; - } - } - if (int_addrs != NULL) { - freeifaddrs(int_addrs); - int_addrs = NULL; - } - return 0; -} - -int get_ips(char *name, int name_len, struct sockaddr_in *ip) { - static int first = 1; - static struct ifaddrs *int_addrs; - static const struct ifaddrs *int_cursor; - const struct sockaddr_in *dl_addr; - - if (first == 1) { - first = 0; - if (getifaddrs(&int_addrs) == 0) { - int_cursor = int_addrs; - } else { - first = 1; - return 0; - } - } - if (int_cursor != NULL) { - while (int_cursor != NULL) { - dl_addr = (const struct sockaddr_in *) int_cursor->ifa_addr; - if (dl_addr != NULL && dl_addr->sin_family == AF_INET) { - memcpy(ip, dl_addr, sizeof(struct sockaddr_in)); - strncpy(name, int_cursor->ifa_name, name_len - 1); - name[name_len - 1] = '\0'; - int_cursor = int_cursor->ifa_next; - return 1; - } - int_cursor = int_cursor->ifa_next; - } - } - if (int_addrs != NULL) { - freeifaddrs(int_addrs); - int_addrs = NULL; - } - return 0; - -} |