From f796c943753b3125950d75a64dee7e869d21d775 Mon Sep 17 00:00:00 2001 From: Mark Jeffery Date: Sat, 15 Jun 2024 10:52:28 +0200 Subject: Added protocol - JRMI - Java Remote Method Invocation (#2470) --- src/lib/protocols/jrmi.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 src/lib/protocols/jrmi.c (limited to 'src/lib/protocols/jrmi.c') diff --git a/src/lib/protocols/jrmi.c b/src/lib/protocols/jrmi.c new file mode 100644 index 000000000..e5d9848dc --- /dev/null +++ b/src/lib/protocols/jrmi.c @@ -0,0 +1,66 @@ +/* + * jrmi.c + * + * Copyright (C) 2024 - 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 . + * + */ + +#include "ndpi_protocol_ids.h" + +#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_JRMI + +#include "ndpi_api.h" +#include "ndpi_private.h" + + +static void ndpi_int_jrmi_add_connection(struct ndpi_detection_module_struct *ndpi_struct, + struct ndpi_flow_struct *flow) { + ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_JRMI, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI); +} + +static void ndpi_search_jrmi(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) { + + struct ndpi_packet_struct *packet = &ndpi_struct->packet; + + NDPI_LOG_DBG(ndpi_struct, "search jrmi\n"); + + //>5 because of the version + if(packet->payload_packet_len > 5) { + if(packet->payload[0] == 0x4a && + packet->payload[1] == 0x52 && + packet->payload[2] == 0x4d && + packet->payload[3] == 0x49 ) { + NDPI_LOG_INFO(ndpi_struct, "found jrmi over tcp\n"); + ndpi_int_jrmi_add_connection(ndpi_struct, flow); + return; + } + } + + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); +} + + +void init_jrmi_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id) { + ndpi_set_bitmask_protocol_detection("JRMI", ndpi_struct, *id, + NDPI_PROTOCOL_JRMI, + ndpi_search_jrmi, + NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION, + SAVE_DETECTION_BITMASK_AS_UNKNOWN, + ADD_TO_DETECTION_BITMASK); + + *id += 1; +} + -- cgit v1.2.3