diff options
Diffstat (limited to 'src/lib/protocols/lisp.c')
-rw-r--r-- | src/lib/protocols/lisp.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/lib/protocols/lisp.c b/src/lib/protocols/lisp.c new file mode 100644 index 000000000..e507be9f9 --- /dev/null +++ b/src/lib/protocols/lisp.c @@ -0,0 +1,71 @@ +#include "ndpi_protocol_ids.h" + +#ifdef NDPI_PROTOCOL_LISP + +#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_LISP + +#include "ndpi_api.h" + +#define LISP_PORT 4341 +#define LISP_PORT1 4342 + +static void ndpi_int_lisp_add_connection(struct ndpi_detection_module_struct *ndpi_struct, + struct ndpi_flow_struct *flow, + u_int8_t due_to_correlation) +{ + + ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_LISP, NDPI_PROTOCOL_UNKNOWN); +} + +static void ndpi_check_lisp(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) +{ + + struct ndpi_packet_struct *packet = &flow->packet; + + if(packet->udp != NULL) { + + u_int16_t lisp_port = htons(LISP_PORT); + u_int16_t lisp_port1 = htons(LISP_PORT1); + + if(((packet->udp->source == lisp_port) + && (packet->udp->dest == lisp_port)) || + ((packet->udp->source == lisp_port1) + && (packet->udp->dest == lisp_port1)) ) { + + NDPI_LOG_INFO(ndpi_struct, "found lisp\n"); + ndpi_int_lisp_add_connection(ndpi_struct, flow, 0); + return; + + } + } + + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); +} + +void ndpi_search_lisp(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) +{ + struct ndpi_packet_struct *packet = &flow->packet; + + NDPI_LOG_DBG(ndpi_struct, "search lisp\n"); + + /* skip marked packets */ + if (packet->detected_protocol_stack[0] != NDPI_PROTOCOL_LISP) { + + ndpi_check_lisp(ndpi_struct, flow); + + } +} + + +void init_lisp_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask) +{ + ndpi_set_bitmask_protocol_detection("LISP", ndpi_struct, detection_bitmask, *id, + NDPI_PROTOCOL_LISP, + ndpi_search_lisp, + NDPI_SELECTION_BITMASK_PROTOCOL_UDP_WITH_PAYLOAD, + SAVE_DETECTION_BITMASK_AS_UNKNOWN, + ADD_TO_DETECTION_BITMASK); + *id += 1; +} + +#endif |