src/vpn/test.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <sys/socket.h>
   4 #include <string.h>
   5
   6 #include <linux/if.h>
   7
   8 #include "packet.h"
   9 #include "tun.h"
  10 #include "debug.h"
  11 #include "pretty-print.h"
  12 #include "tcp.h"
  13 #include "udp.h"
  14 #include <arpa/inet.h>
  15
  16
  17 int main(int c, char** v) {
  18         char dev[IFNAMSIZ];
  19         memset(dev, 0, IFNAMSIZ);
  20         int fd = init_tun(dev);
  21
  22         debug(1, 0, "Initialized the interface %s.\n", dev);
  23
  24         struct pkt_tun* pkt;
  25
  26         for(;;) {
  27                 printf("read %d bytes from socket, ", recv_pkt(fd, &pkt));
  28                 switch (ntohs(pkt->type)) {
  29                         case 0x86dd:
  30                                 printf("parsing ipv6:\n");
  31                                 struct ip6_pkt* pkt6 = parse_ip6(pkt);
  32                                 pkt_printf(pkt6);
  33                                 struct ip6_tcp* pkt6_tcp;
  34                                 struct ip6_udp* pkt6_udp;
  35                                 switch(pkt6->hdr.nxthdr) {
  36                                         case 0x06:
  37                                                 pkt6_tcp = parse_ip6_tcp(pkt6);
  38                                                 pkt_printf_ip6tcp(pkt6_tcp);
  39                                                 handle_tcp(pkt6_tcp);
  40                                                 break;
  41                                         case 0x11:
  42                                                 pkt6_udp = parse_ip6_udp(pkt6);
  43                                                 pkt_printf_ip6udp(pkt6_udp);
  44                                                 handle_udp(pkt6_udp);
  45                                                 break;
  46                                 }
  47                                 break;
  48                         default:
  49                                 printf("unknown/unimplemented packet-type\n");
  50                                 break;
  51                 }
  52         }
  53 }