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Diffstat (limited to 'src/lib/protocols/sopcast.c')
-rw-r--r--src/lib/protocols/sopcast.c223
1 files changed, 0 insertions, 223 deletions
diff --git a/src/lib/protocols/sopcast.c b/src/lib/protocols/sopcast.c
deleted file mode 100644
index b903538cc..000000000
--- a/src/lib/protocols/sopcast.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * sopcast.c
- *
- * Copyright (C) 2009-11 - ipoque GmbH
- * Copyright (C) 2011-22 - ntop.org
- *
- * 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_SOPCAST
-
-#include "ndpi_api.h"
-
-
-static void ndpi_int_sopcast_add_connection(struct ndpi_detection_module_struct
- *ndpi_struct, struct ndpi_flow_struct *flow)
-{
- ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_SOPCAST, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI);
-}
-
-/**
- * this function checks for sopcast tcp pattern
- *
- * NOTE: if you add more patterns please keep the number of if levels
- * low, it is already complex enough
- */
-
-#if !defined(WIN32)
-static inline
-#elif defined(MINGW_GCC)
-__mingw_forceinline static
-#else
-__forceinline static
-#endif
-u_int8_t ndpi_int_is_sopcast_tcp(const u_int8_t * payload, const u_int16_t payload_len)
-{
- if (payload[2] != payload[3] - 4 && payload[2] != payload[3] + 4)
- return 0;
-
- if (payload[2] != payload[4] - 1 && payload[2] != payload[4] + 1)
- return 0;
-
- if (payload[25] != payload[25 + 16 - 1] + 1 && payload[25] != payload[25 + 16 - 1] - 1) {
-
- if (payload[3] != payload[25] &&
- payload[3] != payload[25] - 4 && payload[3] != payload[25] + 4 && payload[3] != payload[25] - 21) {
- return 0;
- }
- }
-
- if (payload[4] != payload[28] ||
- payload[28] != payload[30] ||
- payload[30] != payload[31] ||
- get_u_int16_t(payload, 30) != get_u_int16_t(payload, 32) || get_u_int16_t(payload, 32) != get_u_int16_t(payload, 34)) {
-
- if ((payload[2] != payload[5] - 1 && payload[2] != payload[5] + 1) ||
- payload[2] != payload[25] ||
- payload[4] != payload[28] ||
- payload[4] != payload[31] ||
- payload[4] != payload[32] ||
- payload[4] != payload[33] ||
- payload[4] != payload[34] ||
- payload[4] != payload[35] || payload[4] != payload[30] || payload[2] != payload[36]) {
- return 0;
- }
- }
-
- if (payload[42] != payload[53])
- return 0;
-
- if (payload[45] != payload[46] + 1 && payload[45] != payload[46] - 1)
- return 0;
-
- if (payload[45] != payload[49] || payload[46] != payload[50] || payload[47] != payload[51])
- return 0;
-
- return 1;
-}
-
-static void ndpi_search_sopcast_tcp(struct ndpi_detection_module_struct
- *ndpi_struct, struct ndpi_flow_struct *flow)
-{
-
- struct ndpi_packet_struct *packet = &ndpi_struct->packet;
-
- if (flow->packet_counter == 1 && packet->payload_packet_len == 54 && get_u_int16_t(packet->payload, 0) == ntohs(0x0036)) {
- if (ndpi_int_is_sopcast_tcp(packet->payload, packet->payload_packet_len)) {
- NDPI_LOG_INFO(ndpi_struct, "found sopcast TCP \n");
- ndpi_int_sopcast_add_connection(ndpi_struct, flow);
- return;
- }
- }
-
- NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
-
-}
-
-static void ndpi_search_sopcast_udp(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 sopcast. \n");
-
- if (packet->payload_packet_len == 52 && packet->payload[0] == 0xff
- && packet->payload[1] == 0xff && packet->payload[2] == 0x01
- && packet->payload[8] == 0x02 && packet->payload[9] == 0xff
- && packet->payload[10] == 0x00 && packet->payload[11] == 0x2c
- && packet->payload[12] == 0x00 && packet->payload[13] == 0x00 && packet->payload[14] == 0x00) {
- NDPI_LOG_INFO(ndpi_struct, "found sopcast with if I. \n");
- ndpi_int_sopcast_add_connection(ndpi_struct, flow);
- return;
- }
- if ((packet->payload_packet_len == 80 || packet->payload_packet_len == 28 || packet->payload_packet_len == 94)
- && packet->payload[0] == 0x00 && (packet->payload[2] == 0x02 || packet->payload[2] == 0x01)
- && packet->payload[8] == 0x01 && packet->payload[9] == 0xff
- && packet->payload[10] == 0x00 && packet->payload[11] == 0x14
- && packet->payload[12] == 0x00 && packet->payload[13] == 0x00) {
- NDPI_LOG_INFO(ndpi_struct, "found sopcast with if II. \n");
- ndpi_int_sopcast_add_connection(ndpi_struct, flow);
- return;
- }
- /* this case has been seen once. Please remove this comment, if you see it another time */
- if (packet->payload_packet_len == 60 && packet->payload[0] == 0x00
- && packet->payload[2] == 0x01
- && packet->payload[8] == 0x03 && packet->payload[9] == 0xff
- && packet->payload[10] == 0x00 && packet->payload[11] == 0x34
- && packet->payload[12] == 0x00 && packet->payload[13] == 0x00 && packet->payload[14] == 0x00) {
- NDPI_LOG_INFO(ndpi_struct, "found sopcast with if III. \n");
- ndpi_int_sopcast_add_connection(ndpi_struct, flow);
- return;
- }
- if (packet->payload_packet_len == 42 && packet->payload[0] == 0x00
- && packet->payload[1] == 0x02 && packet->payload[2] == 0x01
- && packet->payload[3] == 0x07 && packet->payload[4] == 0x03
- && packet->payload[8] == 0x06
- && packet->payload[9] == 0x01 && packet->payload[10] == 0x00
- && packet->payload[11] == 0x22 && packet->payload[12] == 0x00 && packet->payload[13] == 0x00) {
- NDPI_LOG_INFO(ndpi_struct, "found sopcast with if IV. \n");
- ndpi_int_sopcast_add_connection(ndpi_struct, flow);
- return;
- }
- if (packet->payload_packet_len == 28 && packet->payload[0] == 0x00
- && packet->payload[1] == 0x0c && packet->payload[2] == 0x01
- && packet->payload[3] == 0x07 && packet->payload[4] == 0x00
- && packet->payload[8] == 0x01
- && packet->payload[9] == 0x01 && packet->payload[10] == 0x00
- && packet->payload[11] == 0x14 && packet->payload[12] == 0x00 && packet->payload[13] == 0x00) {
- NDPI_LOG_INFO(ndpi_struct, "found sopcast with if V. \n");
- ndpi_int_sopcast_add_connection(ndpi_struct, flow);
- return;
- }
- /* this case has been seen once. Please remove this comment, if you see it another time */
- if (packet->payload_packet_len == 286 && packet->payload[0] == 0x00
- && packet->payload[1] == 0x02 && packet->payload[2] == 0x01
- && packet->payload[3] == 0x07 && packet->payload[4] == 0x03
- && packet->payload[8] == 0x06
- && packet->payload[9] == 0x01 && packet->payload[10] == 0x01
- && packet->payload[11] == 0x16 && packet->payload[12] == 0x00 && packet->payload[13] == 0x00) {
- NDPI_LOG_INFO(ndpi_struct, "found sopcast with if VI. \n");
- ndpi_int_sopcast_add_connection(ndpi_struct, flow);
- return;
- }
- if (packet->payload_packet_len == 76 && packet->payload[0] == 0xff
- && packet->payload[1] == 0xff && packet->payload[2] == 0x01
- && packet->payload[8] == 0x0c && packet->payload[9] == 0xff
- && packet->payload[10] == 0x00 && packet->payload[11] == 0x44
- && packet->payload[16] == 0x01 && packet->payload[15] == 0x01
- && packet->payload[12] == 0x00 && packet->payload[13] == 0x00 && packet->payload[14] == 0x00) {
- NDPI_LOG_INFO(ndpi_struct, "found sopcast with if VII. \n");
- ndpi_int_sopcast_add_connection(ndpi_struct, flow);
- return;
- }
-
- /* Attention please: no asymmetric detection necessary. This detection works asymmetrically as well. */
-
- NDPI_LOG_DBG(ndpi_struct, "exclude sopcast. \n");
- NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_SOPCAST);
-
-}
-
-void ndpi_search_sopcast(struct ndpi_detection_module_struct
- *ndpi_struct, struct ndpi_flow_struct *flow)
-{
- struct ndpi_packet_struct *packet = &ndpi_struct->packet;
-
- if (packet->udp != NULL)
- ndpi_search_sopcast_udp(ndpi_struct, flow);
- if (packet->tcp != NULL)
- ndpi_search_sopcast_tcp(ndpi_struct, flow);
-
-}
-
-
-void init_sopcast_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id)
-{
- ndpi_set_bitmask_protocol_detection("Sopcast", ndpi_struct, *id,
- NDPI_PROTOCOL_SOPCAST,
- ndpi_search_sopcast,
- NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_OR_UDP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
- SAVE_DETECTION_BITMASK_AS_UNKNOWN,
- ADD_TO_DETECTION_BITMASK);
-
- *id += 1;
-}
-
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