/**
* \test HOP header decode
*/
static int DecodeIPV6HopTest01 (void)
{
uint8_t raw_pkt1[] = {
0x60,0x00,0x00,0x00,0x00,0x20,0x00,0x01,0xfe,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
0x02,0x0f,0xfe,0xff,0xfe,0x98,0x3d,0x01,0xff,0x02,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x3a,0x00,0xff, /* 0xff is a nonsene opt */
0x02,0x00,0x00,0x00,0x00,
0x82,0x00,0x1c,0x6f,0x27,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
Packet *p1 = PacketGetFromAlloc();
FAIL_IF(unlikely(p1 == NULL));
ThreadVars tv;
DecodeThreadVars dtv;
PacketQueue pq;
FlowInitConfig(FLOW_QUIET);
memset(&pq, 0, sizeof(PacketQueue));
memset(&tv, 0, sizeof(ThreadVars));
memset(&dtv, 0, sizeof(DecodeThreadVars));
PacketCopyData(p1, raw_pkt1, sizeof(raw_pkt1));
DecodeIPV6(&tv, &dtv, p1, GET_PKT_DATA(p1), GET_PKT_LEN(p1), &pq);
FAIL_IF (!(ENGINE_ISSET_EVENT(p1, IPV6_HOPOPTS_UNKNOWN_OPT)));
PACKET_RECYCLE(p1);
SCFree(p1);
FlowShutdown();
PASS;
}
void PcapFileCallbackLoop(char *user, struct pcap_pkthdr *h, u_char *pkt) {
SCEnter();
PcapFileThreadVars *ptv = (PcapFileThreadVars *)user;
Packet *p = PacketGetFromQueueOrAlloc();
if (unlikely(p == NULL)) {
SCReturn;
}
PACKET_PROFILING_TMM_START(p, TMM_RECEIVEPCAPFILE);
p->ts.tv_sec = h->ts.tv_sec;
p->ts.tv_usec = h->ts.tv_usec;
SCLogDebug("p->ts.tv_sec %"PRIuMAX"", (uintmax_t)p->ts.tv_sec);
p->datalink = pcap_g.datalink;
p->pcap_cnt = ++pcap_g.cnt;
ptv->pkts++;
ptv->bytes += h->caplen;
if (unlikely(PacketCopyData(p, pkt, h->caplen))) {
TmqhOutputPacketpool(ptv->tv, p);
PACKET_PROFILING_TMM_END(p, TMM_RECEIVEPCAPFILE);
SCReturn;
}
PACKET_PROFILING_TMM_END(p, TMM_RECEIVEPCAPFILE);
if (TmThreadsSlotProcessPkt(ptv->tv, ptv->slot, p) != TM_ECODE_OK) {
pcap_breakloop(pcap_g.pcap_handle);
ptv->cb_result = TM_ECODE_FAILED;
}
SCReturn;
}
static void PcapCallbackLoop(char *user, struct pcap_pkthdr *h, u_char *pkt)
{
SCEnter();
PcapThreadVars *ptv = (PcapThreadVars *)user;
Packet *p = PacketGetFromQueueOrAlloc();
struct timeval current_time;
if (unlikely(p == NULL)) {
SCReturn;
}
PKT_SET_SRC(p, PKT_SRC_WIRE);
p->ts.tv_sec = h->ts.tv_sec;
p->ts.tv_usec = h->ts.tv_usec;
SCLogDebug("p->ts.tv_sec %"PRIuMAX"", (uintmax_t)p->ts.tv_sec);
p->datalink = ptv->datalink;
ptv->pkts++;
ptv->bytes += h->caplen;
(void) SC_ATOMIC_ADD(ptv->livedev->pkts, 1);
p->livedev = ptv->livedev;
if (unlikely(PacketCopyData(p, pkt, h->caplen))) {
TmqhOutputPacketpool(ptv->tv, p);
SCReturn;
}
switch (ptv->checksum_mode) {
case CHECKSUM_VALIDATION_AUTO:
if (ptv->livedev->ignore_checksum) {
p->flags |= PKT_IGNORE_CHECKSUM;
} else if (ChecksumAutoModeCheck(ptv->pkts,
SC_ATOMIC_GET(ptv->livedev->pkts),
SC_ATOMIC_GET(ptv->livedev->invalid_checksums))) {
ptv->livedev->ignore_checksum = 1;
p->flags |= PKT_IGNORE_CHECKSUM;
}
break;
case CHECKSUM_VALIDATION_DISABLE:
p->flags |= PKT_IGNORE_CHECKSUM;
break;
default:
break;
}
if (TmThreadsSlotProcessPkt(ptv->tv, ptv->slot, p) != TM_ECODE_OK) {
pcap_breakloop(ptv->pcap_handle);
ptv->cb_result = TM_ECODE_FAILED;
}
/* Trigger one dump of stats every second */
TimeGet(¤t_time);
if (current_time.tv_sec != ptv->last_stats_dump) {
PcapDumpCounters(ptv);
ptv->last_stats_dump = current_time.tv_sec;
}
SCReturn;
}
/**
* \brief Setup a pseudo packet (reassembled frags)
*
* Difference with PacketPseudoPktSetup is that this func doesn't increment
* the recursion level. It needs to be on the same level as the frags because
* we run the flow engine against this and we need to get the same flow.
*
* \param parent parent packet for this pseudo pkt
* \param pkt raw packet data
* \param len packet data length
* \param proto protocol of the tunneled packet
*
* \retval p the pseudo packet or NULL if out of memory
*/
Packet *PacketDefragPktSetup(Packet *parent, uint8_t *pkt, uint16_t len, uint8_t proto)
{
SCEnter();
/* get us a packet */
Packet *p = PacketGetFromQueueOrAlloc();
if (unlikely(p == NULL)) {
SCReturnPtr(NULL, "Packet");
}
/* set the root ptr to the lowest layer */
if (parent->root != NULL)
p->root = parent->root;
else
p->root = parent;
/* copy packet and set lenght, proto */
PacketCopyData(p, pkt, len);
p->recursion_level = parent->recursion_level; /* NOT incremented */
p->ts.tv_sec = parent->ts.tv_sec;
p->ts.tv_usec = parent->ts.tv_usec;
p->datalink = DLT_RAW;
/* tell new packet it's part of a tunnel */
SET_TUNNEL_PKT(p);
p->vlan_id[0] = parent->vlan_id[0];
p->vlan_id[1] = parent->vlan_id[1];
p->vlan_idx = parent->vlan_idx;
SCReturnPtr(p, "Packet");
}
/**
* \brief Setup a pseudo packet (tunnel)
*
* \param parent parent packet for this pseudo pkt
* \param pkt raw packet data
* \param len packet data length
* \param proto protocol of the tunneled packet
*
* \retval p the pseudo packet or NULL if out of memory
*/
Packet *PacketTunnelPktSetup(ThreadVars *tv, DecodeThreadVars *dtv, Packet *parent,
uint8_t *pkt, uint16_t len, enum DecodeTunnelProto proto,
PacketQueue *pq)
{
int ret;
SCEnter();
/* get us a packet */
Packet *p = PacketGetFromQueueOrAlloc();
if (unlikely(p == NULL)) {
SCReturnPtr(NULL, "Packet");
}
/* copy packet and set lenght, proto */
PacketCopyData(p, pkt, len);
p->recursion_level = parent->recursion_level + 1;
p->ts.tv_sec = parent->ts.tv_sec;
p->ts.tv_usec = parent->ts.tv_usec;
p->datalink = DLT_RAW;
p->tenant_id = parent->tenant_id;
/* set the root ptr to the lowest layer */
if (parent->root != NULL)
p->root = parent->root;
else
p->root = parent;
/* tell new packet it's part of a tunnel */
SET_TUNNEL_PKT(p);
ret = DecodeTunnel(tv, dtv, p, GET_PKT_DATA(p),
GET_PKT_LEN(p), pq, proto);
if (unlikely(ret != TM_ECODE_OK)) {
/* Not a tunnel packet, just a pseudo packet */
p->root = NULL;
UNSET_TUNNEL_PKT(p);
TmqhOutputPacketpool(tv, p);
SCReturnPtr(NULL, "Packet");
}
/* tell parent packet it's part of a tunnel */
SET_TUNNEL_PKT(parent);
/* increment tunnel packet refcnt in the root packet */
TUNNEL_INCR_PKT_TPR(p);
/* disable payload (not packet) inspection on the parent, as the payload
* is the packet we will now run through the system separately. We do
* check it against the ip/port/other header checks though */
DecodeSetNoPayloadInspectionFlag(parent);
SCReturnPtr(p, "Packet");
}
/**
* \brief Process a DAG record into a TM packet buffer.
* \param prec pointer to a DAG record.
* \param
*/
TmEcode ProcessErfDagRecord(ErfDagThreadVars *ewtn, char *prec, Packet *p)
{
SCEnter();
int wlen = 0;
dag_record_t *dr = (dag_record_t*)prec;
erf_payload_t *pload;
assert(prec);
assert(p);
if (p == NULL) SCReturnInt(TM_ECODE_OK);
/* Only support ethernet at this time. */
if (dr->type != TYPE_ETH &&
dr->type != TYPE_DSM_COLOR_ETH &&
dr->type != TYPE_COLOR_ETH &&
dr->type != TYPE_COLOR_HASH_ETH) {
SCLogError(SC_ERR_UNIMPLEMENTED,
"Processing of DAG record type: %d not implemented.", dr->type);
SCReturnInt(TM_ECODE_FAILED);
}
wlen = ntohs(dr->wlen);
pload = &(dr->rec);
SET_PKT_LEN(p, wlen - 4); /* Trim the FCS... */
p->datalink = LINKTYPE_ETHERNET;
/* Take into account for link type Ethernet ETH frame starts
* after ther ERF header + pad.
*/
PacketCopyData(p, pload->eth.dst, GET_PKT_LEN(p));
SCLogDebug("pktlen: %" PRIu32 " (pkt %02x, pkt data %02x)",
GET_PKT_LEN(p), *p, *GET_PKT_DATA(p));
/* Convert ERF time to timeval - from libpcap. */
uint64_t ts = dr->ts;
p->ts.tv_sec = ts >> 32;
ts = (ts & 0xffffffffULL) * 1000000;
ts += 0x80000000; /* rounding */
p->ts.tv_usec = ts >> 32;
if (p->ts.tv_usec >= 1000000) {
p->ts.tv_usec -= 1000000;
p->ts.tv_sec++;
}
ewtn->pkts++;
ewtn->bytes += wlen;
SCReturnInt(TM_ECODE_OK);
}
/**
* \test routing header decode
*/
static int DecodeIPV6RouteTest01 (void) {
uint8_t raw_pkt1[] = {
0x60, 0x00, 0x00, 0x00, 0x00, 0x1c, 0x2b, 0x40,
0x20, 0x01, 0xaa, 0xaa, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
0x20, 0x01, 0xaa, 0xaa, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xb2, 0xed, 0x00, 0x50, 0x1b, 0xc7, 0x6a, 0xdf,
0x00, 0x00, 0x00, 0x00, 0x50, 0x02, 0x20, 0x00,
0xfa, 0x87, 0x00, 0x00,
};
Packet *p1 = SCMalloc(SIZE_OF_PACKET);
if (p1 == NULL)
return 0;
ThreadVars tv;
DecodeThreadVars dtv;
int result = 0;
PacketQueue pq;
FlowInitConfig(FLOW_QUIET);
memset(&pq, 0, sizeof(PacketQueue));
memset(&tv, 0, sizeof(ThreadVars));
memset(p1, 0, SIZE_OF_PACKET);
p1->pkt = (uint8_t *)(p1 + 1);
memset(&dtv, 0, sizeof(DecodeThreadVars));
PACKET_INITIALIZE(p1);
PacketCopyData(p1, raw_pkt1, sizeof(raw_pkt1));
DecodeIPV6(&tv, &dtv, p1, GET_PKT_DATA(p1), GET_PKT_LEN(p1), &pq);
if (!(IPV6_EXTHDR_ISSET_RH(p1))) {
printf("ipv6 routing header not detected: ");
goto end;
}
if (p1->ip6eh.ip6_exthdrs[0].len != 8) {
printf("ipv6 routing length incorrect: ");
goto end;
}
result = 1;
end:
PACKET_CLEANUP(p1);
SCFree(p1);
FlowShutdown();
return result;
}
void PcapFileCallbackLoop(char *user, struct pcap_pkthdr *h, u_char *pkt)
{
SCEnter();
PcapFileFileVars *ptv = (PcapFileFileVars *)user;
Packet *p = PacketGetFromQueueOrAlloc();
if (unlikely(p == NULL)) {
SCReturn;
}
PACKET_PROFILING_TMM_START(p, TMM_RECEIVEPCAPFILE);
PKT_SET_SRC(p, PKT_SRC_WIRE);
p->ts.tv_sec = h->ts.tv_sec;
p->ts.tv_usec = h->ts.tv_usec;
SCLogDebug("p->ts.tv_sec %"PRIuMAX"", (uintmax_t)p->ts.tv_sec);
p->datalink = ptv->datalink;
p->pcap_cnt = ++pcap_g.cnt;
p->pcap_v.tenant_id = ptv->shared->tenant_id;
ptv->shared->pkts++;
ptv->shared->bytes += h->caplen;
if (unlikely(PacketCopyData(p, pkt, h->caplen))) {
TmqhOutputPacketpool(ptv->shared->tv, p);
PACKET_PROFILING_TMM_END(p, TMM_RECEIVEPCAPFILE);
SCReturn;
}
/* We only check for checksum disable */
if (pcap_g.checksum_mode == CHECKSUM_VALIDATION_DISABLE) {
p->flags |= PKT_IGNORE_CHECKSUM;
} else if (pcap_g.checksum_mode == CHECKSUM_VALIDATION_AUTO) {
if (ChecksumAutoModeCheck(ptv->shared->pkts, p->pcap_cnt,
SC_ATOMIC_GET(pcap_g.invalid_checksums))) {
pcap_g.checksum_mode = CHECKSUM_VALIDATION_DISABLE;
p->flags |= PKT_IGNORE_CHECKSUM;
}
}
PACKET_PROFILING_TMM_END(p, TMM_RECEIVEPCAPFILE);
if (TmThreadsSlotProcessPkt(ptv->shared->tv, ptv->shared->slot, p) != TM_ECODE_OK) {
pcap_breakloop(ptv->pcap_handle);
ptv->shared->cb_result = TM_ECODE_FAILED;
}
SCReturn;
}
/**
* \test HOP header decode
*/
static int DecodeIPV6HopTest01 (void)
{
uint8_t raw_pkt1[] = {
0x60,0x00,0x00,0x00,0x00,0x20,0x00,0x01,0xfe,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
0x02,0x0f,0xfe,0xff,0xfe,0x98,0x3d,0x01,0xff,0x02,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x3a,0x00,0x05,0x02,0x00,0x00,0x00,0x00,
0x82,0x00,0x1c,0x6f,0x27,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
Packet *p1 = PacketGetFromAlloc();
if (unlikely(p1 == NULL))
return 0;
ThreadVars tv;
DecodeThreadVars dtv;
int result = 0;
PacketQueue pq;
FlowInitConfig(FLOW_QUIET);
memset(&pq, 0, sizeof(PacketQueue));
memset(&tv, 0, sizeof(ThreadVars));
memset(&dtv, 0, sizeof(DecodeThreadVars));
PacketCopyData(p1, raw_pkt1, sizeof(raw_pkt1));
DecodeIPV6(&tv, &dtv, p1, GET_PKT_DATA(p1), GET_PKT_LEN(p1), &pq);
if (!(IPV6_EXTHDR_ISSET_HH(p1))) {
printf("ipv6 routing header not detected: ");
goto end;
}
if (p1->ip6eh.ip6_exthdrs[0].len != 8) {
printf("ipv6 routing length incorrect: ");
goto end;
}
if (ENGINE_ISSET_EVENT(p1, IPV6_HOPOPTS_UNKNOWN_OPT)) {
printf("engine event IPV6_HOPOPTS_UNKNOWN_OPT set: ");
goto end;
}
result = 1;
end:
PACKET_RECYCLE(p1);
SCFree(p1);
FlowShutdown();
return result;
}
/** DecodeRawtest01
* \brief Valid Raw packet
* \retval 0 Expected test value
*/
static int DecodeRawTest01 (void) {
/* IPV6/TCP/no eth header */
uint8_t raw_ip[] = {
0x60, 0x00, 0x00, 0x00, 0x00, 0x28, 0x06, 0x40,
0x20, 0x01, 0x06, 0x18, 0x04, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x51, 0x99, 0xcc, 0x70,
0x20, 0x01, 0x06, 0x18, 0x00, 0x01, 0x80, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
0x8c, 0x9b, 0x00, 0x50, 0x6a, 0xe7, 0x07, 0x36,
0x00, 0x00, 0x00, 0x00, 0xa0, 0x02, 0x16, 0x30,
0x29, 0x9c, 0x00, 0x00, 0x02, 0x04, 0x05, 0x8c,
0x04, 0x02, 0x08, 0x0a, 0x00, 0xdd, 0x1a, 0x39,
0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x02 };
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);
p->pkt = (uint8_t *)(p + 1);
if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) {
SCFree(p);
return 1;
}
FlowInitConfig(FLOW_QUIET);
DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p), NULL);
if (p->ip6h == NULL) {
printf("expected a valid ipv6 header but it was NULL: ");
FlowShutdown();
SCFree(p);
return 1;
}
FlowShutdown();
SCFree(p);
return 0;
}
/** DecodeRawtest03
* \brief Valid Raw packet
* \retval 0 Expected test value
*/
static int DecodeRawTest03 (void) {
/* IPV13 */
uint8_t raw_ip[] = {
0xdf, 0x00, 0x00, 0x3d, 0x49, 0x42, 0x40, 0x00,
0x40, 0x06, 0xcf, 0x8a, 0x0a, 0x1f, 0x03, 0xaf,
0x0a, 0x1f, 0x0a, 0x02, 0xa5, 0xe7, 0xde, 0xad,
0x00, 0x0c, 0xe2, 0x0e, 0x8b, 0xfe, 0x0c, 0xe7,
0x80, 0x18, 0x00, 0xb7, 0xaf, 0xeb, 0x00, 0x00,
0x01, 0x01, 0x08, 0x0a, 0x00, 0x08, 0xab, 0x4f,
0x34, 0x40, 0x67, 0x31, 0x3b, 0x63, 0x61, 0x74,
0x20, 0x6b, 0x65, 0x79, 0x3b };
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);
p->pkt = (uint8_t *)(p + 1);
if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) {
SCFree(p);
return 1;
}
FlowInitConfig(FLOW_QUIET);
DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p), NULL);
if (ENGINE_ISSET_EVENT(p,IPRAW_INVALID_IPV)) {
FlowShutdown();
SCFree(p);
return 0;
} else {
printf("expected IPRAW_INVALID_IPV to be set but it wasn't: ");
}
FlowShutdown();
SCFree(p);
return 1;
}
/** DecodeRawtest02
* \brief Valid Raw packet
* \retval 0 Expected test value
*/
static int DecodeRawTest02 (void)
{
/* IPV4/TCP/no eth header */
uint8_t raw_ip[] = {
0x45, 0x00, 0x00, 0x30, 0x00, 0xad, 0x40, 0x00,
0x7f, 0x06, 0xac, 0xc5, 0xc0, 0xa8, 0x67, 0x02,
0xc0, 0xa8, 0x66, 0x02, 0x0b, 0xc7, 0x00, 0x50,
0x1d, 0xb3, 0x12, 0x37, 0x00, 0x00, 0x00, 0x00,
0x70, 0x02, 0x40, 0x00, 0xb8, 0xc8, 0x00, 0x00,
0x02, 0x04, 0x05, 0xb4, 0x01, 0x01, 0x04, 0x02 };
Packet *p = PacketGetFromAlloc();
if (unlikely(p == NULL))
return 0;
ThreadVars tv;
DecodeThreadVars dtv;
memset(&dtv, 0, sizeof(DecodeThreadVars));
memset(&tv, 0, sizeof(ThreadVars));
if (PacketCopyData(p, raw_ip, sizeof(raw_ip)) == -1) {
SCFree(p);
return 0;
}
FlowInitConfig(FLOW_QUIET);
DecodeRaw(&tv, &dtv, p, raw_ip, GET_PKT_LEN(p), NULL);
if (p->ip4h == NULL) {
printf("expected a valid ipv4 header but it was NULL: ");
PACKET_RECYCLE(p);
FlowShutdown();
SCFree(p);
return 0;
}
PACKET_RECYCLE(p);
FlowShutdown();
SCFree(p);
return 1;
}
/**
* \brief Setup a pseudo packet (tunnel)
*
* \param parent parent packet for this pseudo pkt
* \param pkt raw packet data
* \param len packet data length
* \param proto protocol of the tunneled packet
*
* \retval p the pseudo packet or NULL if out of memory
*/
Packet *PacketPseudoPktSetup(Packet *parent, uint8_t *pkt, uint16_t len, uint8_t proto)
{
SCEnter();
/* get us a packet */
Packet *p = PacketGetFromQueueOrAlloc();
if (p == NULL) {
SCReturnPtr(NULL, "Packet");
}
/* set the root ptr to the lowest layer */
if (parent->root != NULL)
p->root = parent->root;
else
p->root = parent;
/* copy packet and set lenght, proto */
PacketCopyData(p, pkt, len);
p->recursion_level = parent->recursion_level + 1;
p->ts.tv_sec = parent->ts.tv_sec;
p->ts.tv_usec = parent->ts.tv_usec;
p->datalink = DLT_RAW;
/* set tunnel flags */
/* tell new packet it's part of a tunnel */
SET_TUNNEL_PKT(p);
/* tell parent packet it's part of a tunnel */
SET_TUNNEL_PKT(parent);
/* increment tunnel packet refcnt in the root packet */
TUNNEL_INCR_PKT_TPR(p);
/* disable payload (not packet) inspection on the parent, as the payload
* is the packet we will now run through the system separately. We do
* check it against the ip/port/other header checks though */
DecodeSetNoPayloadInspectionFlag(parent);
SCReturnPtr(p, "Packet");
}
/**
* \test routing header decode
*/
static int DecodeIPV6RouteTest01 (void)
{
uint8_t raw_pkt1[] = {
0x60, 0x00, 0x00, 0x00, 0x00, 0x1c, 0x2b, 0x40,
0x20, 0x01, 0xaa, 0xaa, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
0x20, 0x01, 0xaa, 0xaa, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xb2, 0xed, 0x00, 0x50, 0x1b, 0xc7, 0x6a, 0xdf,
0x00, 0x00, 0x00, 0x00, 0x50, 0x02, 0x20, 0x00,
0xfa, 0x87, 0x00, 0x00,
};
Packet *p1 = PacketGetFromAlloc();
FAIL_IF(unlikely(p1 == NULL));
ThreadVars tv;
DecodeThreadVars dtv;
PacketQueue pq;
FlowInitConfig(FLOW_QUIET);
memset(&pq, 0, sizeof(PacketQueue));
memset(&tv, 0, sizeof(ThreadVars));
memset(&dtv, 0, sizeof(DecodeThreadVars));
PacketCopyData(p1, raw_pkt1, sizeof(raw_pkt1));
DecodeIPV6(&tv, &dtv, p1, GET_PKT_DATA(p1), GET_PKT_LEN(p1), &pq);
FAIL_IF (!(IPV6_EXTHDR_ISSET_RH(p1)));
FAIL_IF (p1->ip6eh.rh_type != 0);
PACKET_RECYCLE(p1);
SCFree(p1);
FlowShutdown();
PASS;
}
/**
* \brief Process a DAG record into a TM packet buffer.
* \param prec pointer to a DAG record.
* \param
*/
static inline TmEcode ProcessErfDagRecord(ErfDagThreadVars *ewtn, char *prec)
{
SCEnter();
int wlen = 0;
int rlen = 0;
int hdr_num = 0;
char hdr_type = 0;
dag_record_t *dr = (dag_record_t*)prec;
erf_payload_t *pload;
Packet *p;
hdr_type = dr->type;
wlen = ntohs(dr->wlen);
rlen = ntohs(dr->rlen);
/* count extension headers */
while (hdr_type & 0x80) {
if (rlen < (dag_record_size + (hdr_num * 8))) {
SCLogError(SC_ERR_UNIMPLEMENTED,
"Insufficient captured packet length.");
SCReturnInt(TM_ECODE_FAILED);
}
hdr_type = prec[(dag_record_size + (hdr_num * 8))];
hdr_num++;
}
/* Check that the whole frame was captured */
if (rlen < (dag_record_size + (8 * hdr_num) + 2 + wlen)) {
SCLogInfo("Incomplete frame captured.");
SCReturnInt(TM_ECODE_OK);
}
/* skip over extension headers */
pload = (erf_payload_t *)(prec + dag_record_size + (8 * hdr_num));
p = PacketGetFromQueueOrAlloc();
if (p == NULL) {
SCLogError(SC_ERR_MEM_ALLOC,
"Failed to allocate a Packet on stream: %d, DAG: %s",
ewtn->dagstream, ewtn->dagname);
SCReturnInt(TM_ECODE_FAILED);
}
PKT_SET_SRC(p, PKT_SRC_WIRE);
SET_PKT_LEN(p, wlen);
p->datalink = LINKTYPE_ETHERNET;
/* Take into account for link type Ethernet ETH frame starts
* after ther ERF header + pad.
*/
if (unlikely(PacketCopyData(p, pload->eth.dst, GET_PKT_LEN(p)))) {
TmqhOutputPacketpool(ewtn->tv, p);
SCReturnInt(TM_ECODE_FAILED);
}
/* Convert ERF time to timeval - from libpcap. */
uint64_t ts = dr->ts;
p->ts.tv_sec = ts >> 32;
ts = (ts & 0xffffffffULL) * 1000000;
ts += 0x80000000; /* rounding */
p->ts.tv_usec = ts >> 32;
if (p->ts.tv_usec >= 1000000) {
p->ts.tv_usec -= 1000000;
p->ts.tv_sec++;
}
SCPerfCounterIncr(ewtn->packets, ewtn->tv->sc_perf_pca);
ewtn->bytes += wlen;
if (TmThreadsSlotProcessPkt(ewtn->tv, ewtn->slot, p) != TM_ECODE_OK) {
TmqhOutputPacketpool(ewtn->tv, p);
SCReturnInt(TM_ECODE_FAILED);
}
SCReturnInt(TM_ECODE_OK);
}
int NFQSetupPkt (Packet *p, struct nfq_q_handle *qh, void *data)
{
struct nfq_data *tb = (struct nfq_data *)data;
int ret;
char *pktdata;
struct nfqnl_msg_packet_hdr *ph;
ph = nfq_get_msg_packet_hdr(tb);
if (ph != NULL) {
p->nfq_v.id = ntohl(ph->packet_id);
//p->nfq_v.hw_protocol = ntohs(p->nfq_v.ph->hw_protocol);
p->nfq_v.hw_protocol = ph->hw_protocol;
}
p->nfq_v.mark = nfq_get_nfmark(tb);
if (nfq_config.mode == NFQ_REPEAT_MODE) {
if ((nfq_config.mark & nfq_config.mask) ==
(p->nfq_v.mark & nfq_config.mask)) {
int iter = 0;
if (already_seen_warning < MAX_ALREADY_TREATED)
SCLogInfo("Packet seems already treated by suricata");
already_seen_warning++;
do {
ret = nfq_set_verdict(qh, p->nfq_v.id, NF_ACCEPT, 0, NULL);
} while ((ret < 0) && (iter++ < NFQ_VERDICT_RETRY_TIME));
if (ret < 0) {
SCLogWarning(SC_ERR_NFQ_SET_VERDICT,
"nfq_set_verdict of %p failed %" PRId32 "",
p, ret);
}
return -1 ;
}
}
p->nfq_v.ifi = nfq_get_indev(tb);
p->nfq_v.ifo = nfq_get_outdev(tb);
#ifdef NFQ_GET_PAYLOAD_SIGNED
ret = nfq_get_payload(tb, &pktdata);
#else
ret = nfq_get_payload(tb, (unsigned char **) &pktdata);
#endif /* NFQ_GET_PAYLOAD_SIGNED */
if (ret > 0) {
/* nfq_get_payload returns a pointer to a part of memory
* that is not preserved over the lifetime of our packet.
* So we need to copy it. */
if (ret > 65536) {
/* Will not be able to copy data ! Set length to 0
* to trigger an error in packet decoding.
* This is unlikely to happen */
SCLogWarning(SC_ERR_INVALID_ARGUMENTS, "NFQ sent too big packet");
SET_PKT_LEN(p, 0);
} else {
PacketCopyData(p, (uint8_t *)pktdata, ret);
}
} else if (ret == -1) {
/* unable to get pointer to data, ensure packet length is zero.
* This will trigger an error in packet decoding */
SET_PKT_LEN(p, 0);
}
ret = nfq_get_timestamp(tb, &p->ts);
if (ret != 0) {
memset (&p->ts, 0, sizeof(struct timeval));
gettimeofday(&p->ts, NULL);
}
p->datalink = DLT_RAW;
return 0;
}
static int DetectCsumICMPV6Test01(void)
{
DetectEngineCtx *de_ctx = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
DecodeThreadVars dtv;
Packet *p = PacketGetFromAlloc();
FAIL_IF_NULL(p);
uint8_t pkt[] = {
0x00, 0x30, 0x18, 0xa8, 0x7c, 0x23, 0x2c, 0x41,
0x38, 0xa7, 0xea, 0xeb, 0x86, 0xdd, 0x60, 0x00,
0x00, 0x00, 0x00, 0x40, 0x3c, 0x40, 0xad, 0xa1,
0x09, 0x80, 0x00, 0x01, 0xd6, 0xf3, 0x20, 0x01,
0xf4, 0xbe, 0xea, 0x3c, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x32, 0xb2, 0x00, 0x01, 0x32, 0xb2,
0x09, 0x80, 0x20, 0x01, 0x00, 0x00, 0x3c, 0x00,
0x01, 0x04, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x00,
0x01, 0x04, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00,
0x01, 0x04, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00,
0x01, 0x04, 0x00, 0x00, 0x00, 0x00, 0x3a, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
0x63, 0xc2, 0x00, 0x00, 0x00, 0x00 };
PacketCopyData(p, pkt, sizeof(pkt));
memset(&tv, 0, sizeof(tv));
memset(&dtv, 0, sizeof(dtv));
StreamTcpInitConfig(TRUE);
FlowInitConfig(FLOW_QUIET);
de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->mpm_matcher = mpm_default_matcher;
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx, "alert ip any any -> any any "
"(icmpv6-csum:valid; sid:1;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DecodeEthernet(&tv, &dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), NULL);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
SigMatchSignatures(&tv, de_ctx, det_ctx, p);
FAIL_IF(!PacketAlertCheck(p, 1));
DetectEngineThreadCtxDeinit(&tv, det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
PACKET_RECYCLE(p);
FlowShutdown();
SCFree(p);
PASS;
}
/**
* \test fragment decoding
*/
static int DecodeIPV6FragTest01 (void) {
uint8_t raw_frag1[] = {
0x60, 0x0f, 0x1a, 0xcf, 0x05, 0xa8, 0x2c, 0x36, 0x20, 0x01, 0x04, 0x70, 0x00, 0x01, 0x00, 0x18,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x20, 0x01, 0x09, 0x80, 0x32, 0xb2, 0x00, 0x01,
0x2e, 0x41, 0x38, 0xff, 0xfe, 0xa7, 0xea, 0xeb, 0x06, 0x00, 0x00, 0x01, 0xdf, 0xf8, 0x11, 0xd7,
0x00, 0x50, 0xa6, 0x5c, 0xcc, 0xd7, 0x28, 0x9f, 0xc3, 0x34, 0xc6, 0x58, 0x80, 0x10, 0x20, 0x13,
0x18, 0x1f, 0x00, 0x00, 0x01, 0x01, 0x08, 0x0a, 0xcd, 0xf9, 0x3a, 0x41, 0x00, 0x1a, 0x91, 0x8a,
0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, 0x2e, 0x31, 0x20, 0x32, 0x30, 0x30, 0x20, 0x4f, 0x4b, 0x0d,
0x0a, 0x44, 0x61, 0x74, 0x65, 0x3a, 0x20, 0x46, 0x72, 0x69, 0x2c, 0x20, 0x30, 0x32, 0x20, 0x44,
0x65, 0x63, 0x20, 0x32, 0x30, 0x31, 0x31, 0x20, 0x30, 0x38, 0x3a, 0x33, 0x32, 0x3a, 0x35, 0x37,
0x20, 0x47, 0x4d, 0x54, 0x0d, 0x0a, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x3a, 0x20, 0x41, 0x70,
0x61, 0x63, 0x68, 0x65, 0x0d, 0x0a, 0x43, 0x61, 0x63, 0x68, 0x65, 0x2d, 0x43, 0x6f, 0x6e, 0x74,
0x72, 0x6f, 0x6c, 0x3a, 0x20, 0x6e, 0x6f, 0x2d, 0x63, 0x61, 0x63, 0x68, 0x65, 0x0d, 0x0a, 0x50,
0x72, 0x61, 0x67, 0x6d, 0x61, 0x3a, 0x20, 0x6e, 0x6f, 0x2d, 0x63, 0x61, 0x63, 0x68, 0x65, 0x0d,
0x0a, 0x45, 0x78, 0x70, 0x69, 0x72, 0x65, 0x73, 0x3a, 0x20, 0x54, 0x68, 0x75, 0x2c, 0x20, 0x30,
0x31, 0x20, 0x4a, 0x61, 0x6e, 0x20, 0x31, 0x39, 0x37, 0x31, 0x20, 0x30, 0x30, 0x3a, 0x30, 0x30,
0x3a, 0x30, 0x30, 0x20, 0x47, 0x4d, 0x54, 0x0d, 0x0a, 0x43, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74,
0x2d, 0x4c, 0x65, 0x6e, 0x67, 0x74, 0x68, 0x3a, 0x20, 0x31, 0x35, 0x39, 0x39, 0x0d, 0x0a, 0x4b,
0x65, 0x65, 0x70, 0x2d, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x3a, 0x20, 0x74, 0x69, 0x6d, 0x65, 0x6f,
0x75, 0x74, 0x3d, 0x35, 0x2c, 0x20, 0x6d, 0x61, 0x78, 0x3d, 0x39, 0x39, 0x0d, 0x0a, 0x43, 0x6f,
0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x3a, 0x20, 0x4b, 0x65, 0x65, 0x70, 0x2d, 0x41,
0x6c, 0x69, 0x76, 0x65, 0x0d, 0x0a, 0x43, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, 0x54, 0x79,
0x70, 0x65, 0x3a, 0x20, 0x61, 0x70, 0x70, 0x6c, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f,
0x6a, 0x61, 0x76, 0x61, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x3b, 0x63, 0x68, 0x61, 0x72, 0x73,
0x65, 0x74, 0x3d, 0x61, 0x73, 0x63, 0x69, 0x69, 0x0d, 0x0a, 0x0d, 0x0a, 0x5f, 0x6a, 0x71, 0x6a,
0x73, 0x70, 0x28, 0x7b, 0x22, 0x69, 0x70, 0x22, 0x3a, 0x22, 0x32, 0x30, 0x30, 0x31, 0x3a, 0x39,
0x38, 0x30, 0x3a, 0x33, 0x32, 0x62, 0x32, 0x3a, 0x31, 0x3a, 0x32, 0x65, 0x34, 0x31, 0x3a, 0x33,
0x38, 0x66, 0x66, 0x3a, 0x66, 0x65, 0x61, 0x37, 0x3a, 0x65, 0x61, 0x65, 0x62, 0x22, 0x2c, 0x22,
0x74, 0x79, 0x70, 0x65, 0x22, 0x3a, 0x22, 0x69, 0x70, 0x76, 0x36, 0x22, 0x2c, 0x22, 0x73, 0x75,
0x62, 0x74, 0x79, 0x70, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x76, 0x69, 0x61, 0x22, 0x3a,
0x22, 0x22, 0x2c, 0x22, 0x70, 0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x22, 0x3a, 0x22, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
};
uint8_t raw_frag2[] = {
0x60, 0x0f, 0x1a, 0xcf, 0x00, 0x1c, 0x2c, 0x36, 0x20, 0x01, 0x04, 0x70, 0x00, 0x01, 0x00, 0x18,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x20, 0x01, 0x09, 0x80, 0x32, 0xb2, 0x00, 0x01,
0x2e, 0x41, 0x38, 0xff, 0xfe, 0xa7, 0xea, 0xeb, 0x06, 0x00, 0x05, 0xa0, 0xdf, 0xf8, 0x11, 0xd7,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20,
};
Packet *p1 = SCMalloc(SIZE_OF_PACKET);
if (p1 == NULL)
return 0;
Packet *p2 = SCMalloc(SIZE_OF_PACKET);
if (p2 == NULL) {
SCFree(p1);
return 0;
}
ThreadVars tv;
DecodeThreadVars dtv;
int result = 0;
PacketQueue pq;
FlowInitConfig(FLOW_QUIET);
memset(&pq, 0, sizeof(PacketQueue));
memset(&tv, 0, sizeof(ThreadVars));
memset(p1, 0, SIZE_OF_PACKET);
p1->pkt = (uint8_t *)(p1 + 1);
memset(p2, 0, SIZE_OF_PACKET);
p2->pkt = (uint8_t *)(p2 + 1);
memset(&dtv, 0, sizeof(DecodeThreadVars));
PACKET_INITIALIZE(p1);
PACKET_INITIALIZE(p2);
PacketCopyData(p1, raw_frag1, sizeof(raw_frag1));
PacketCopyData(p2, raw_frag2, sizeof(raw_frag2));
DecodeIPV6(&tv, &dtv, p1, GET_PKT_DATA(p1), GET_PKT_LEN(p1), &pq);
if (!(IPV6_EXTHDR_ISSET_FH(p1))) {
printf("ipv6 frag header not detected: ");
goto end;
}
DecodeIPV6(&tv, &dtv, p2, GET_PKT_DATA(p2), GET_PKT_LEN(p2), &pq);
if (!(IPV6_EXTHDR_ISSET_FH(p2))) {
printf("ipv6 frag header not detected: ");
goto end;
}
if (pq.len != 1) {
printf("no reassembled packet: ");
goto end;
}
result = 1;
end:
PACKET_CLEANUP(p1);
PACKET_CLEANUP(p2);
SCFree(p1);
SCFree(p2);
FlowShutdown();
return result;
}
/**
* \test Test packet Matches
* \param raw_eth_pkt pointer to the ethernet packet
* \param pktsize size of the packet
* \param sig pointer to the signature to test
* \param sid sid number of the signature
* \retval return 1 if match
* \retval return 0 if not
*/
int DetectReplaceLongPatternMatchTest(uint8_t *raw_eth_pkt, uint16_t pktsize, char *sig,
uint32_t sid, uint8_t *pp, uint16_t *len)
{
int result = 0;
Packet *p = NULL;
p = PacketGetFromAlloc();
if (unlikely(p == NULL))
return 0;
DecodeThreadVars dtv;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
if (pp == NULL) {
SCLogDebug("replace: looks like a second run");
}
PacketCopyData(p, raw_eth_pkt, pktsize);
memset(&dtv, 0, sizeof(DecodeThreadVars));
memset(&th_v, 0, sizeof(th_v));
FlowInitConfig(FLOW_QUIET);
DecodeEthernet(&th_v, &dtv, p, GET_PKT_DATA(p), pktsize, NULL);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, sig);
if (de_ctx->sig_list == NULL) {
goto end;
}
de_ctx->sig_list->next = NULL;
if (de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->type == DETECT_CONTENT) {
DetectContentData *co = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx;
if (co->flags & DETECT_CONTENT_RELATIVE_NEXT) {
printf("relative next flag set on final match which is content: ");
goto end;
}
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, sid) != 1) {
SCLogDebug("replace: no alert on sig %d", sid);
goto end;
}
if (pp) {
memcpy(pp, GET_PKT_DATA(p), GET_PKT_LEN(p));
*len = pktsize;
SCLogDebug("replace: copying %d on %p", *len, pp);
}
result = 1;
end:
if (de_ctx != NULL)
{
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
DetectEngineCtxFree(de_ctx);
}
FlowShutdown();
SCFree(p);
return result;
}
TmEcode ReceiveIPFWLoop(ThreadVars *tv, void *data, void *slot)
{
SCEnter();
IPFWThreadVars *ptv = (IPFWThreadVars *)data;
IPFWQueueVars *nq = NULL;
uint8_t pkt[IP_MAXPACKET];
int pktlen=0;
struct pollfd IPFWpoll;
struct timeval IPFWts;
Packet *p = NULL;
uint16_t packet_q_len = 0;
nq = IPFWGetQueue(ptv->ipfw_index);
if (nq == NULL) {
SCLogWarning(SC_ERR_INVALID_ARGUMENT, "Can't get thread variable");
SCReturnInt(TM_ECODE_FAILED);
}
SCLogInfo("Thread '%s' will run on port %d (item %d)",
tv->name, nq->port_num, ptv->ipfw_index);
while (1) {
if (suricata_ctl_flags & (SURICATA_STOP || SURICATA_KILL)) {
SCReturnInt(TM_ECODE_OK);
}
IPFWpoll.fd = nq->fd;
IPFWpoll.events = POLLRDNORM;
/* Poll the socket for status */
if ( (poll(&IPFWpoll, 1, IPFW_SOCKET_POLL_MSEC)) > 0) {
if (!(IPFWpoll.revents & (POLLRDNORM | POLLERR)))
continue;
}
if ((pktlen = recvfrom(nq->fd, pkt, sizeof(pkt), 0,
(struct sockaddr *)&nq->ipfw_sin,
&nq->ipfw_sinlen)) == -1) {
/* We received an error on socket read */
if (errno == EINTR || errno == EWOULDBLOCK) {
/* Nothing for us to process */
continue;
} else {
SCLogWarning(SC_WARN_IPFW_RECV,
"Read from IPFW divert socket failed: %s",
strerror(errno));
SCReturnInt(TM_ECODE_FAILED);
}
}
/* We have a packet to process */
memset (&IPFWts, 0, sizeof(struct timeval));
gettimeofday(&IPFWts, NULL);
/* make sure we have at least one packet in the packet pool, to prevent
* us from alloc'ing packets at line rate */
do {
packet_q_len = PacketPoolSize();
if (unlikely(packet_q_len == 0)) {
PacketPoolWait();
}
} while (packet_q_len == 0);
p = PacketGetFromQueueOrAlloc();
if (p == NULL) {
SCReturnInt(TM_ECODE_FAILED);
}
PKT_SET_SRC(p, PKT_SRC_WIRE);
SCLogDebug("Received Packet Len: %d", pktlen);
p->ts.tv_sec = IPFWts.tv_sec;
p->ts.tv_usec = IPFWts.tv_usec;
ptv->pkts++;
ptv->bytes += pktlen;
p->datalink = ptv->datalink;
p->ipfw_v.ipfw_index = ptv->ipfw_index;
PacketCopyData(p, pkt, pktlen);
SCLogDebug("Packet info: pkt_len: %" PRIu32 " (pkt %02x, pkt_data %02x)",
GET_PKT_LEN(p), *pkt, GET_PKT_DATA(p));
if (TmThreadsSlotProcessPkt(tv, ((TmSlot *) slot)->slot_next, p)
!= TM_ECODE_OK) {
TmqhOutputPacketpool(tv, p);
SCReturnInt(TM_ECODE_FAILED);
}
SCPerfSyncCountersIfSignalled(tv, 0);
}
SCReturnInt(TM_ECODE_OK);
}
/**
* \brief Main Napatech reading Loop function
*/
TmEcode NapatechFeedLoop(ThreadVars *tv, void *data, void *slot)
{
SCEnter();
int32_t status;
int32_t caplen;
PCAP_HEADER *header;
uint8_t *frame;
uint16_t packet_q_len = 0;
NapatechThreadVars *ntv = (NapatechThreadVars *)data;
int r;
TmSlot *s = (TmSlot *)slot;
ntv->slot = s->slot_next;
while (1) {
if (suricata_ctl_flags & (SURICATA_STOP || SURICATA_KILL)) {
SCReturnInt(TM_ECODE_OK);
}
/* make sure we have at least one packet in the packet pool, to prevent
* us from alloc'ing packets at line rate */
do {
packet_q_len = PacketPoolSize();
if (unlikely(packet_q_len == 0)) {
PacketPoolWait();
}
} while (packet_q_len == 0);
/*
* Napatech returns frames in segment chunks. Function ntci_next_frame
* returns 1 for a frame, 0 if the segment is empty, and -1 on error
*/
status = napatech_next_frame (ntv->feed, &header, &frame);
if (status == 0) {
/*
* no frames currently available
*/
continue;
} else if (status < 0) {
SCLogError(SC_ERR_NAPATECH_FEED_NEXT_FAILED,
"Failed to read from Napatech feed %d:%d",
ntv->adapter_number, ntv->feed_number);
SCReturnInt(TM_ECODE_FAILED);
}
// beware that storelen is aligned; therefore, it may be larger than "caplen"
caplen = (header->wireLen < header->storeLen) ? header->wireLen : header->storeLen;
Packet *p = PacketGetFromQueueOrAlloc();
if (unlikely(p == NULL)) {
SCReturnInt(TM_ECODE_FAILED);
}
p->ts.tv_sec = header->ts.tv_sec;
p->ts.tv_usec = header->ts.tv_usec;
SCLogDebug("p->ts.tv_sec %"PRIuMAX"", (uintmax_t)p->ts.tv_sec);
p->datalink = LINKTYPE_ETHERNET;
ntv->pkts++;
ntv->bytes += caplen;
if (unlikely(PacketCopyData(p, frame, caplen))) {
TmqhOutputPacketpool(ntv->tv, p);
SCReturnInt(TM_ECODE_FAILED);
}
if (TmThreadsSlotProcessPkt(ntv->tv, ntv->slot, p) != TM_ECODE_OK) {
TmqhOutputPacketpool(ntv->tv, p);
SCReturnInt(TM_ECODE_FAILED);
}
}
SCReturnInt(TM_ECODE_OK);
}
/**
* \brief Main Napatech reading Loop function
*/
TmEcode NapatechStreamLoop(ThreadVars *tv, void *data, void *slot)
{
SCEnter();
int32_t status;
char errbuf[100];
uint16_t packet_q_len = 0;
uint64_t pkt_ts;
NtNetBuf_t packet_buffer;
NapatechThreadVars *ntv = (NapatechThreadVars *)data;
NtNetRx_t stat_cmd;
SCLogInfo("Opening NAPATECH Stream: %lu for processing", ntv->stream_id);
if ((status = NT_NetRxOpen(&(ntv->rx_stream), "SuricataStream", NT_NET_INTERFACE_PACKET, ntv->stream_id, ntv->hba)) != NT_SUCCESS) {
NT_ExplainError(status, errbuf, sizeof(errbuf));
SCLogError(SC_ERR_NAPATECH_OPEN_FAILED, "Failed to open NAPATECH Stream: %lu - %s", ntv->stream_id, errbuf);
SCFree(ntv);
SCReturnInt(TM_ECODE_FAILED);
}
stat_cmd.cmd = NT_NETRX_READ_CMD_STREAM_DROP;
SCLogInfo("Napatech Packet Stream Loop Started for Stream ID: %lu", ntv->stream_id);
TmSlot *s = (TmSlot *)slot;
ntv->slot = s->slot_next;
while (!(suricata_ctl_flags & (SURICATA_STOP | SURICATA_KILL))) {
/* make sure we have at least one packet in the packet pool, to prevent
* us from alloc'ing packets at line rate */
do {
packet_q_len = PacketPoolSize();
if (unlikely(packet_q_len == 0)) {
PacketPoolWait();
}
} while (packet_q_len == 0);
/*
* Napatech returns packets 1 at a time
*/
status = NT_NetRxGet(ntv->rx_stream, &packet_buffer, 1000);
if (unlikely(status == NT_STATUS_TIMEOUT || status == NT_STATUS_TRYAGAIN)) {
/*
* no frames currently available
*/
continue;
} else if (unlikely(status != NT_SUCCESS)) {
SCLogError(SC_ERR_NAPATECH_STREAM_NEXT_FAILED,
"Failed to read from Napatech Stream: %lu",
ntv->stream_id);
SCReturnInt(TM_ECODE_FAILED);
}
Packet *p = PacketGetFromQueueOrAlloc();
if (unlikely(p == NULL)) {
NT_NetRxRelease(ntv->rx_stream, packet_buffer);
SCReturnInt(TM_ECODE_FAILED);
}
pkt_ts = NT_NET_GET_PKT_TIMESTAMP(packet_buffer);
/*
* Handle the different timestamp forms that the napatech cards could use
* - NT_TIMESTAMP_TYPE_NATIVE is not supported due to having an base of 0 as opposed to NATIVE_UNIX which has a base of 1/1/1970
*/
switch(NT_NET_GET_PKT_TIMESTAMP_TYPE(packet_buffer)) {
case NT_TIMESTAMP_TYPE_NATIVE_UNIX:
p->ts.tv_sec = pkt_ts / 100000000;
p->ts.tv_usec = ((pkt_ts % 100000000) / 100) + (pkt_ts % 100) > 50 ? 1 : 0;
break;
case NT_TIMESTAMP_TYPE_PCAP:
p->ts.tv_sec = pkt_ts >> 32;
p->ts.tv_usec = pkt_ts & 0xFFFFFFFF;
break;
case NT_TIMESTAMP_TYPE_PCAP_NANOTIME:
p->ts.tv_sec = pkt_ts >> 32;
p->ts.tv_usec = ((pkt_ts & 0xFFFFFFFF) / 1000) + (pkt_ts % 1000) > 500 ? 1 : 0;
break;
case NT_TIMESTAMP_TYPE_NATIVE_NDIS:
/* number of seconds between 1/1/1601 and 1/1/1970 */
p->ts.tv_sec = (pkt_ts / 100000000) - 11644473600;
p->ts.tv_usec = ((pkt_ts % 100000000) / 100) + (pkt_ts % 100) > 50 ? 1 : 0;
break;
default:
SCLogError(SC_ERR_NAPATECH_TIMESTAMP_TYPE_NOT_SUPPORTED,
"Packet from Napatech Stream: %lu does not have a supported timestamp format",
ntv->stream_id);
NT_NetRxRelease(ntv->rx_stream, packet_buffer);
SCReturnInt(TM_ECODE_FAILED);
}
SCLogDebug("p->ts.tv_sec %"PRIuMAX"", (uintmax_t)p->ts.tv_sec);
p->datalink = LINKTYPE_ETHERNET;
ntv->pkts++;
ntv->bytes += NT_NET_GET_PKT_WIRE_LENGTH(packet_buffer);
// Update drop counter
if (unlikely((status = NT_NetRxRead(ntv->rx_stream, &stat_cmd)) != NT_SUCCESS))
{
NT_ExplainError(status, errbuf, sizeof(errbuf));
SCLogWarning(SC_ERR_NAPATECH_STAT_DROPS_FAILED, "Couldn't retrieve drop statistics from the RX stream: %lu - %s", ntv->stream_id, errbuf);
}
else
{
ntv->drops += stat_cmd.u.streamDrop.pktsDropped;
}
if (unlikely(PacketCopyData(p, (uint8_t *)NT_NET_GET_PKT_L2_PTR(packet_buffer), NT_NET_GET_PKT_WIRE_LENGTH(packet_buffer)))) {
TmqhOutputPacketpool(ntv->tv, p);
NT_NetRxRelease(ntv->rx_stream, packet_buffer);
SCReturnInt(TM_ECODE_FAILED);
}
if (unlikely(TmThreadsSlotProcessPkt(ntv->tv, ntv->slot, p) != TM_ECODE_OK)) {
TmqhOutputPacketpool(ntv->tv, p);
NT_NetRxRelease(ntv->rx_stream, packet_buffer);
SCReturnInt(TM_ECODE_FAILED);
}
NT_NetRxRelease(ntv->rx_stream, packet_buffer);
SCPerfSyncCountersIfSignalled(tv);
}
SCReturnInt(TM_ECODE_OK);
}
