static int DecodeMPLSTestHeaderTooSmall(void)
{
int ret = 1;
/* A packet that is too small to have a complete MPLS header. */
uint8_t pkt[] = {
0x00, 0x00, 0x11
};
Packet *p = SCMalloc(SIZE_OF_PACKET);
if (unlikely(p == NULL)) {
return 0;
}
ThreadVars tv;
DecodeThreadVars dtv;
memset(&dtv, 0, sizeof(DecodeThreadVars));
memset(&tv, 0, sizeof(ThreadVars));
memset(p, 0, SIZE_OF_PACKET);
DecodeMPLS(&tv, &dtv, p, pkt, sizeof(pkt), NULL);
if (!ENGINE_ISSET_EVENT(p, MPLS_HEADER_TOO_SMALL)) {
ret = 0;
}
SCFree(p);
return ret;
}
static int DecodeMPLSTestPacketTooSmall(void)
{
ThreadVars tv;
DecodeThreadVars dtv;
memset(&dtv, 0, sizeof(DecodeThreadVars));
memset(&tv, 0, sizeof(ThreadVars));
Packet *p0 = SCCalloc(1, SIZE_OF_PACKET);
memset(p0, 0, SIZE_OF_PACKET);
uint8_t pkt0[] = { 0x00, 0x01, 0x51, 0xff };
DecodeMPLS(&tv, &dtv, p0, pkt0, sizeof(pkt0), NULL);
FAIL_IF_NOT(ENGINE_ISSET_EVENT(p0, MPLS_PKT_TOO_SMALL));
SCFree(p0);
Packet *p1 = SCCalloc(1, SIZE_OF_PACKET);
FAIL_IF_NULL(p1);
uint8_t pkt1[] = { 0x00, 0x01, 0x51, 0xff, 0x45 };
DecodeMPLS(&tv, &dtv, p1, pkt1, sizeof(pkt1), NULL);
FAIL_IF_NOT(ENGINE_ISSET_EVENT(p1, MPLS_PKT_TOO_SMALL));
SCFree(p1);
Packet *p2 = SCCalloc(1, SIZE_OF_PACKET);
FAIL_IF_NULL(p2);
uint8_t pkt2[] = { 0x00, 0x01, 0x51, 0xff, 0x45, 0x01 };
DecodeMPLS(&tv, &dtv, p2, pkt2, sizeof(pkt2), NULL);
FAIL_IF_NOT(ENGINE_ISSET_EVENT(p2, MPLS_PKT_TOO_SMALL));
SCFree(p2);
Packet *p3 = SCCalloc(1, SIZE_OF_PACKET);
FAIL_IF_NULL(p3);
uint8_t pkt3[] = { 0x00, 0x01, 0x51, 0xff, 0x45, 0x01, 0x02 };
DecodeMPLS(&tv, &dtv, p3, pkt3, sizeof(pkt3), NULL);
FAIL_IF_NOT(ENGINE_ISSET_EVENT(p3, MPLS_PKT_TOO_SMALL));
SCFree(p3);
// This should not create a too small event is it has one more byte
// than required.
Packet *p4 = SCCalloc(1, SIZE_OF_PACKET);
FAIL_IF_NULL(p4);
uint8_t pkt4[] = { 0x00, 0x01, 0x51, 0xff, 0x45, 0x01, 0x02, 0x03 };
DecodeMPLS(&tv, &dtv, p4, pkt4, sizeof(pkt4), NULL);
FAIL_IF(ENGINE_ISSET_EVENT(p4, MPLS_PKT_TOO_SMALL));
SCFree(p4);
PASS;
}
int DecodeEthernet(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
uint8_t *pkt, uint16_t len, PacketQueue *pq)
{
StatsIncr(tv, dtv->counter_eth);
if (unlikely(len < ETHERNET_HEADER_LEN)) {
ENGINE_SET_INVALID_EVENT(p, ETHERNET_PKT_TOO_SMALL);
return TM_ECODE_FAILED;
}
p->ethh = (EthernetHdr *)pkt;
if (unlikely(p->ethh == NULL))
return TM_ECODE_FAILED;
SCLogDebug("p %p pkt %p ether type %04x", p, pkt, ntohs(p->ethh->eth_type));
switch (ntohs(p->ethh->eth_type)) {
case ETHERNET_TYPE_IP:
//printf("DecodeEthernet ip4\n");
DecodeIPV4(tv, dtv, p, pkt + ETHERNET_HEADER_LEN,
len - ETHERNET_HEADER_LEN, pq);
break;
case ETHERNET_TYPE_IPV6:
//printf("DecodeEthernet ip6\n");
DecodeIPV6(tv, dtv, p, pkt + ETHERNET_HEADER_LEN,
len - ETHERNET_HEADER_LEN, pq);
break;
case ETHERNET_TYPE_PPPOE_SESS:
//printf("DecodeEthernet PPPOE Session\n");
DecodePPPOESession(tv, dtv, p, pkt + ETHERNET_HEADER_LEN,
len - ETHERNET_HEADER_LEN, pq);
break;
case ETHERNET_TYPE_PPPOE_DISC:
//printf("DecodeEthernet PPPOE Discovery\n");
DecodePPPOEDiscovery(tv, dtv, p, pkt + ETHERNET_HEADER_LEN,
len - ETHERNET_HEADER_LEN, pq);
break;
case ETHERNET_TYPE_VLAN:
case ETHERNET_TYPE_8021QINQ:
DecodeVLAN(tv, dtv, p, pkt + ETHERNET_HEADER_LEN,
len - ETHERNET_HEADER_LEN, pq);
break;
case ETHERNET_TYPE_MPLS_UNICAST:
case ETHERNET_TYPE_MPLS_MULTICAST:
DecodeMPLS(tv, dtv, p, pkt + ETHERNET_HEADER_LEN,
len - ETHERNET_HEADER_LEN, pq);
break;
default:
SCLogDebug("p %p pkt %p ether type %04x not supported", p,
pkt, ntohs(p->ethh->eth_type));
}
return TM_ECODE_OK;
}
static int DecodeMPLSTestUnknownPayloadType(void)
{
int ret = 1;
/* Valid label: 21.
* Unknown payload type: 1.
*/
uint8_t pkt[] = {
0x00, 0x01, 0x51, 0xff, 0x15, 0x00, 0x00, 0x64,
0x00, 0x0a, 0x00, 0x00, 0xff, 0x01, 0xa5, 0x6a,
0x0a, 0x01, 0x02, 0x01, 0x0a, 0x22, 0x00, 0x01,
0x08, 0x00, 0x3a, 0x77, 0x0a, 0x39, 0x06, 0x2b,
0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x33, 0x50,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd
};
Packet *p = SCMalloc(SIZE_OF_PACKET);
if (unlikely(p == NULL)) {
return 0;
}
ThreadVars tv;
DecodeThreadVars dtv;
memset(&dtv, 0, sizeof(DecodeThreadVars));
memset(&tv, 0, sizeof(ThreadVars));
memset(p, 0, SIZE_OF_PACKET);
DecodeMPLS(&tv, &dtv, p, pkt, sizeof(pkt), NULL);
if (!ENGINE_ISSET_EVENT(p, MPLS_UNKNOWN_PAYLOAD_TYPE)) {
ret = 0;
}
SCFree(p);
return ret;
}
static int DecodeMPLSTestBadLabelReserved(void)
{
int ret = 1;
uint8_t pkt[] = {
0x00, 0x00, 0x51, 0xff, 0x45, 0x00, 0x00, 0x64,
0x00, 0x0a, 0x00, 0x00, 0xff, 0x01, 0xa5, 0x6a,
0x0a, 0x01, 0x02, 0x01, 0x0a, 0x22, 0x00, 0x01,
0x08, 0x00, 0x3a, 0x77, 0x0a, 0x39, 0x06, 0x2b,
0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x33, 0x50,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd
};
Packet *p = SCMalloc(SIZE_OF_PACKET);
if (unlikely(p == NULL)) {
return 0;
}
ThreadVars tv;
DecodeThreadVars dtv;
memset(&dtv, 0, sizeof(DecodeThreadVars));
memset(&tv, 0, sizeof(ThreadVars));
memset(p, 0, SIZE_OF_PACKET);
DecodeMPLS(&tv, &dtv, p, pkt, sizeof(pkt), NULL);
if (!ENGINE_ISSET_EVENT(p, MPLS_BAD_LABEL_RESERVED)) {
ret = 0;
}
SCFree(p);
return ret;
}
