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path: root/src/lib/protocols/dofus.c
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Diffstat (limited to 'src/lib/protocols/dofus.c')
-rw-r--r--src/lib/protocols/dofus.c100
1 files changed, 47 insertions, 53 deletions
diff --git a/src/lib/protocols/dofus.c b/src/lib/protocols/dofus.c
index 26ccdb444..baed6c262 100644
--- a/src/lib/protocols/dofus.c
+++ b/src/lib/protocols/dofus.c
@@ -22,76 +22,68 @@
*
*/
+#include "ndpi_protocol_ids.h"
+#ifdef NDPI_PROTOCOL_DOFUS
-#include "ndpi_api.h"
+#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_DOFUS
-#ifdef NDPI_PROTOCOL_DOFUS
+#include "ndpi_api.h"
static void ndpi_dofus_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_DOFUS, NDPI_PROTOCOL_UNKNOWN);
+ NDPI_LOG_INFO(ndpi_struct, "found dofus\n");
}
void ndpi_search_dofus(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
- struct ndpi_packet_struct *packet = &flow->packet;
- // struct ndpi_id_struct *src=ndpi_struct->src;
- // struct ndpi_id_struct *dst=ndpi_struct->dst;
+ struct ndpi_packet_struct *packet = &flow->packet;
+ NDPI_LOG_DBG(ndpi_struct, "search dofus\n");
/* Dofus v 1.x.x */
if (packet->payload_packet_len == 13 && get_u_int16_t(packet->payload, 1) == ntohs(0x0508)
&& get_u_int16_t(packet->payload, 5) == ntohs(0x04a0)
&& get_u_int16_t(packet->payload, packet->payload_packet_len - 2) == ntohs(0x0194)) {
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "found dofus.\n");
ndpi_dofus_add_connection(ndpi_struct, flow);
return;
}
- if (flow->l4.tcp.dofus_stage == 0 && packet->payload_packet_len == 3 && memcmp(packet->payload, "HG", 2) == 0
- && packet->payload[packet->payload_packet_len - 1] == 0) {
- flow->l4.tcp.dofus_stage = 1;
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "maybe dofus.\n");
- return;
- }
- if (flow->l4.tcp.dofus_stage == 0 && packet->payload_packet_len == 35 && memcmp(packet->payload, "HC", 2) == 0
- && packet->payload[packet->payload_packet_len - 1] == 0) {
- flow->l4.tcp.dofus_stage = 1;
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "maybe dofus.\n");
- return;
- }
- if (flow->l4.tcp.dofus_stage == 0 && packet->payload_packet_len > 2 && packet->payload[0] == 'A'
- && (packet->payload[1] == 'x' || packet->payload[1] == 'X')
- && packet->payload[packet->payload_packet_len - 1] == 0) {
- flow->l4.tcp.dofus_stage = 1;
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "maybe dofus.\n");
- return;
- }
- if (flow->l4.tcp.dofus_stage == 0 && packet->payload_packet_len == 12 && memcmp(packet->payload, "Af", 2) == 0
- && packet->payload[packet->payload_packet_len - 1] == 0) {
- flow->l4.tcp.dofus_stage = 1;
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "maybe dofus.\n");
- return;
- }
- if (flow->l4.tcp.dofus_stage == 0 && packet->payload_packet_len > 2 && memcmp(packet->payload, "Ad", 2)
- && packet->payload[packet->payload_packet_len - 1] == 0) {
- flow->l4.tcp.dofus_stage = 1;
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "maybe dofus.\n");
- return;
+ if (flow->l4.tcp.dofus_stage == 0) {
+ if (packet->payload_packet_len == 3 && memcmp(packet->payload, "HG", 2) == 0
+ && packet->payload[packet->payload_packet_len - 1] == 0)
+ goto maybe_dofus;
+
+ if (packet->payload_packet_len == 12 && memcmp(packet->payload, "Af", 2) == 0
+ && packet->payload[packet->payload_packet_len - 1] == 0)
+ goto maybe_dofus;
+
+ if (packet->payload_packet_len == 35 && memcmp(packet->payload, "HC", 2) == 0
+ && packet->payload[packet->payload_packet_len - 1] == 0)
+ goto maybe_dofus;
+
+ if (packet->payload_packet_len > 2 && packet->payload[0] == 'A'
+ && (packet->payload[1] == 'x' || packet->payload[1] == 'X')
+ && packet->payload[packet->payload_packet_len - 1] == 0)
+ goto maybe_dofus;
+
+ if (packet->payload_packet_len > 2 && memcmp(packet->payload, "Ad", 2)
+ && packet->payload[packet->payload_packet_len - 1] == 0)
+ goto maybe_dofus;
+
}
- if (packet->payload_packet_len == 11 && memcmp(packet->payload, "AT", 2) == 0 && packet->payload[10] == 0x00) {
- if (flow->l4.tcp.dofus_stage == 1) {
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "found dofus.\n");
+ if (flow->l4.tcp.dofus_stage == 1) {
+ if (packet->payload_packet_len == 11 && memcmp(packet->payload, "AT", 2) == 0
+ && packet->payload[10] == 0x00) {
+ ndpi_dofus_add_connection(ndpi_struct, flow);
+ return;
+ }
+ if (packet->payload_packet_len == 5
+ && packet->payload[0] == 'A' && packet->payload[4] == 0x00
+ && (packet->payload[1] == 'T' || packet->payload[1] == 'k')) {
ndpi_dofus_add_connection(ndpi_struct, flow);
return;
}
- }
- if (flow->l4.tcp.dofus_stage == 1 && packet->payload_packet_len == 5
- && packet->payload[0] == 'A' && packet->payload[4] == 0x00 && (packet->payload[1] == 'T'
- || packet->payload[1] == 'k')) {
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "found dofus asym.\n");
- ndpi_dofus_add_connection(ndpi_struct, flow);
- return;
}
/* end Dofus 1.x.x */
@@ -109,7 +101,6 @@ void ndpi_search_dofus(struct ndpi_detection_module_struct *ndpi_struct, struct
if (packet->payload_packet_len == 49 && ntohs(get_u_int16_t(packet->payload, 15)) + 17 != packet->payload_packet_len) {
goto exclude;
}
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "found dofus.\n");
ndpi_dofus_add_connection(ndpi_struct, flow);
return;
}
@@ -120,7 +111,6 @@ void ndpi_search_dofus(struct ndpi_detection_module_struct *ndpi_struct, struct
goto exclude;
len2 = ntohs(get_u_int16_t(packet->payload, 5 + len));
if (5 + len + 2 + len2 == packet->payload_packet_len) {
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "found dofus.\n");
ndpi_dofus_add_connection(ndpi_struct, flow);
return;
}
@@ -135,16 +125,20 @@ void ndpi_search_dofus(struct ndpi_detection_module_struct *ndpi_struct, struct
if ((12 + len + 2 + len2 + 1) > packet->payload_packet_len)
goto exclude;
if (12 + len + 2 + len2 + 1 == packet->payload_packet_len && packet->payload[12 + len + 2 + len2] == 0x01) {
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "found dofus.\n");
ndpi_dofus_add_connection(ndpi_struct, flow);
return;
}
}
- exclude:
- NDPI_LOG(NDPI_PROTOCOL_DOFUS, ndpi_struct, NDPI_LOG_DEBUG, "exclude dofus.\n");
- NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_DOFUS);
-}
+exclude:
+ NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+ return;
+
+maybe_dofus:
+ flow->l4.tcp.dofus_stage = 1;
+ NDPI_LOG_DBG2(ndpi_struct, "maybe dofus\n");
+ return;
+}
void init_dofus_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask)
{
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