1 files changed, 70 insertions, 0 deletions
diff --git a/src/lib/protocols/line.c b/src/lib/protocols/line.c
new file mode 100644
index 000000000..35f6d17af
--- /dev/null
+++ b/src/lib/protocols/line.c
@@ -0,0 +1,70 @@
+/*
+ * line.c
+ *
+ * Copyright (C) 2019 - ntop.org
+ *
+ * nDPI is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * nDPI is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with nDPI.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#include "ndpi_protocol_ids.h"
+
+#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_LINE
+
+#include "ndpi_api.h"
+
+
+static void ndpi_line_report_protocol(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) {
+  /* printf("-> payload_len=%u\n", flow->packet.payload_packet_len); */
+
+  NDPI_LOG_INFO(ndpi_struct, "found line\n");
+  ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_LINE, NDPI_PROTOCOL_LINE);
+}
+
+void ndpi_search_line(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 line\n");
+
+  if(packet->iph) {
+    /* 125.209.252.xxx */
+    if(((ntohl(packet->iph->saddr) & 0xFFFFFF00 /* 255.255.255.0 */) == 0x7DD1FC00)
+       || ((ntohl(packet->iph->daddr) & 0xFFFFFF00 /* 255.255.255.0 */) == 0x7DD1FC00)) {
+      if(
+	 ((packet->payload_packet_len == 110)
+	  && (flow->packet.payload[0] == 0xB6) && (flow->packet.payload[1] == 0x18)
+	  && (flow->packet.payload[2] == 0x00) && (flow->packet.payload[3] == 0x6A))
+	 ||
+	 ((flow->packet.payload[0] == 0xB0) && (flow->packet.payload[1] == 0x78))
+	 ) {
+	ndpi_line_report_protocol(ndpi_struct, flow);
+	return;
+      }
+    }
+  }
+
+  NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+}
+
+
+void init_line_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id, NDPI_PROTOCOL_BITMASK *detection_bitmask)
+{
+  ndpi_set_bitmask_protocol_detection("Line", ndpi_struct, detection_bitmask, *id,
+				      NDPI_PROTOCOL_LINE,
+				      ndpi_search_line,
+				      NDPI_SELECTION_BITMASK_PROTOCOL_UDP_WITH_PAYLOAD,
+				      SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+				      ADD_TO_DETECTION_BITMASK);
+
+  *id += 1;
+}