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-rw-r--r--src/include/ndpi_protocol_ids.h1
-rw-r--r--src/lib/ndpi_main.c8
-rw-r--r--src/lib/ndpi_private.h1
-rw-r--r--src/lib/protocols/hl7.c82
4 files changed, 92 insertions, 0 deletions
diff --git a/src/include/ndpi_protocol_ids.h b/src/include/ndpi_protocol_ids.h
index 954960554..eb9246ebf 100644
--- a/src/include/ndpi_protocol_ids.h
+++ b/src/include/ndpi_protocol_ids.h
@@ -408,6 +408,7 @@ typedef enum {
NDPI_PROTOCOL_APACHE_KAFKA = 377,
NDPI_PROTOCOL_NOMACHINE = 378,
NDPI_PROTOCOL_IEC62056 = 379,
+ NDPI_PROTOCOL_HL7 = 380,
#ifdef CUSTOM_NDPI_PROTOCOLS
#include "../../../nDPI-custom/custom_ndpi_protocol_ids.h"
diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c
index 9f32c8c8b..0a6579bba 100644
--- a/src/lib/ndpi_main.c
+++ b/src/lib/ndpi_main.c
@@ -1089,6 +1089,7 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
NDPI_PROTOCOL_RTSP,
NDPI_PROTOCOL_APACHE_THRIFT,
NDPI_PROTOCOL_JSON_RPC,
+ NDPI_PROTOCOL_HL7,
NDPI_PROTOCOL_MATCHED_BY_CONTENT,
NDPI_PROTOCOL_NO_MORE_SUBPROTOCOLS); /* NDPI_PROTOCOL_HTTP can have (content-matched) subprotocols */
ndpi_set_proto_defaults(ndpi_str, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MDNS,
@@ -2226,6 +2227,10 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
"IEC62056", NDPI_PROTOCOL_CATEGORY_IOT_SCADA,
ndpi_build_default_ports(ports_a, 4059, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 4059, 0, 0, 0, 0) /* UDP */);
+ ndpi_set_proto_defaults(ndpi_str, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_HL7,
+ "HL7", NDPI_PROTOCOL_CATEGORY_RPC,
+ ndpi_build_default_ports(ports_a, 2575, 0, 0, 0, 0) /* TCP */,
+ ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
#ifdef CUSTOM_NDPI_PROTOCOLS
#include "../../../nDPI-custom/custom_ndpi_main.c"
@@ -5738,6 +5743,9 @@ static int ndpi_callback_init(struct ndpi_detection_module_struct *ndpi_str) {
/* IEC 62056 */
init_iec62056_dissector(ndpi_str, &a);
+ /* HL7 */
+ init_hl7_dissector(ndpi_str, &a);
+
#ifdef CUSTOM_NDPI_PROTOCOLS
#include "../../../nDPI-custom/custom_ndpi_main_init.c"
#endif
diff --git a/src/lib/ndpi_private.h b/src/lib/ndpi_private.h
index 8e0705ce7..84b72802d 100644
--- a/src/lib/ndpi_private.h
+++ b/src/lib/ndpi_private.h
@@ -642,6 +642,7 @@ void init_json_rpc_dissector(struct ndpi_detection_module_struct *ndpi_struct, u
void init_kafka_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
void init_nomachine_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
void init_iec62056_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
+void init_hl7_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
#endif
diff --git a/src/lib/protocols/hl7.c b/src/lib/protocols/hl7.c
new file mode 100644
index 000000000..193db55f4
--- /dev/null
+++ b/src/lib/protocols/hl7.c
@@ -0,0 +1,82 @@
+/*
+ * hl7.c
+ *
+ * Health Level Seven (HL7)
+ *
+ * Copyright (C) 2023 - ntop.org
+ * Copyright (C) 2023 - V.G <jacendi@protonmail.com>
+ *
+ * This file is part of nDPI, an open source deep packet inspection
+ * library based on the OpenDPI and PACE technology by ipoque GmbH
+ *
+ * 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_HL7
+
+#include "ndpi_api.h"
+#include "ndpi_private.h"
+
+static void ndpi_search_hl7(struct ndpi_detection_module_struct *ndpi_struct,
+ struct ndpi_flow_struct *flow)
+{
+ struct ndpi_packet_struct const * const packet = &ndpi_struct->packet;
+
+ NDPI_LOG_DBG(ndpi_struct, "search HL7\n");
+
+ if (flow->detected_protocol_stack[0] == NDPI_PROTOCOL_HTTP ||
+ flow->detected_protocol_stack[1] == NDPI_PROTOCOL_HTTP)
+ {
+ if (packet->content_line.ptr != NULL) {
+ if ((LINE_ENDS(packet->content_line, "x-application/hl7-v2+er7") != 0) ||
+ (LINE_ENDS(packet->content_line, "x-application/hl7-v2+xml") != 0) ||
+ (LINE_ENDS(packet->content_line, "x-application/hl7-v3+xml") != 0) ||
+ (LINE_ENDS(packet->content_line, "x-application/fhir+xml") != 0) ||
+ (LINE_ENDS(packet->content_line, "x-application/fhir+json") != 0) ||
+ (LINE_ENDS(packet->content_line, "x-application/xml+cda") != 0))
+ {
+ NDPI_LOG_INFO(ndpi_struct, "found HL7 over HTTP\n");
+ ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_HL7, NDPI_PROTOCOL_HTTP,
+ NDPI_CONFIDENCE_DPI);
+ }
+ }
+ return;
+ }
+
+ if (packet->payload_packet_len > 100 &&
+ memcmp(&packet->payload[1], "MSH|^~\\&|", NDPI_STATICSTRING_LEN("MSH|^~\\&|")) == 0)
+ {
+ NDPI_LOG_INFO(ndpi_struct, "found HL7\n");
+ ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_HL7, NDPI_PROTOCOL_UNKNOWN,
+ NDPI_CONFIDENCE_DPI);
+ return;
+ }
+
+ NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
+}
+
+void init_hl7_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id)
+{
+ ndpi_set_bitmask_protocol_detection("HL7", ndpi_struct, *id,
+ NDPI_PROTOCOL_HL7,
+ ndpi_search_hl7,
+ NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
+ SAVE_DETECTION_BITMASK_AS_UNKNOWN,
+ ADD_TO_DETECTION_BITMASK);
+
+ *id += 1;
+}
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