Initial import from SVN

1 files changed, 63 insertions, 0 deletions

diff --git a/src/lib/protocols/skinny.c b/src/lib/protocols/skinny.c
new file mode 100644
index 000000000..5e35f11f5
--- /dev/null
+++ b/src/lib/protocols/skinny.c
@@ -0,0 +1,63 @@
+/*
+ * skinny.c
+ *
+ * Copyright (C) 2013 Remy Mudingay <mudingay@ill.fr>
+ *
+ * This module 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.
+ *
+ * This module 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.
+ * If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#include "ndpi_api.h"
+
+
+#ifdef NDPI_PROTOCOL_SKINNY
+static void ndpi_int_skinny_add_connection(struct ndpi_detection_module_struct
+					   *ndpi_struct, struct ndpi_flow_struct *flow)
+{
+  ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_SKINNY, NDPI_CORRELATED_PROTOCOL);
+}
+
+void ndpi_search_skinny(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
+{
+  struct ndpi_packet_struct *packet = &flow->packet;
+  u_int16_t dport = 0, sport = 0;
+  const char pattern_9_bytes[9] = { 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+  const char pattern_8_bytes[8] = { 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+  const char keypadmsg_8_bytes[8] = { 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+  const char selectmsg_8_bytes[8] = { 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+  NDPI_LOG(NDPI_PROTOCOL_SKINNY, ndpi_struct, NDPI_LOG_DEBUG, "search for SKINNY.\n");
+
+  if(packet->tcp != NULL) {
+    sport = ntohs(packet->tcp->source), dport = ntohs(packet->tcp->dest);
+    NDPI_LOG(NDPI_PROTOCOL_SKINNY, ndpi_struct, NDPI_LOG_DEBUG, "calculating SKINNY over tcp.\n");
+    if (dport == 2000  && ((packet->payload_packet_len == 24 &&
+			    memcmp(&packet->payload[0], keypadmsg_8_bytes, 8) == 0) 
+			   || ((packet->payload_packet_len == 64) && memcmp(&packet->payload[0], pattern_8_bytes, 8) == 0))) {
+      NDPI_LOG(NDPI_PROTOCOL_SKINNY, ndpi_struct, NDPI_LOG_DEBUG, "found skinny.\n");
+      ndpi_int_skinny_add_connection(ndpi_struct, flow);
+    } else if (sport == 2000 && ((packet->payload_packet_len == 28 &&
+				 memcmp(&packet->payload[0], selectmsg_8_bytes, 8) == 0 ) ||
+	       (packet->payload_packet_len == 44 &&
+		memcmp(&packet->payload[0], pattern_9_bytes, 9) == 0))) {
+      NDPI_LOG(NDPI_PROTOCOL_SKINNY, ndpi_struct, NDPI_LOG_DEBUG, "found skinny.\n");
+      ndpi_int_skinny_add_connection(ndpi_struct, flow);
+    }
+  } else {
+    NDPI_LOG(NDPI_PROTOCOL_SKINNY, ndpi_struct, NDPI_LOG_DEBUG, "exclude SKINNY.\n");
+    NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_SKINNY);
+  }
+}
+#endif