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Initial import from SVN

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Luca Deri 2015-04-19 07:25:59 +02:00
parent 7fa4694dad
commit 2e5ceac844
204 changed files with 47689 additions and 1 deletions
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src/lib/protocols/attic/flash.c Normal file
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/*
* flash.c
*
* Copyright (C) 2009-2011 by ipoque GmbH
* Copyright (C) 2011-15 - 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_protocols.h"
#ifdef NDPI_PROTOCOL_FLASH
static void ndpi_int_flash_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
ndpi_int_add_connection(ndpi_struct, flow, NDPI_PROTOCOL_FLASH, NDPI_REAL_PROTOCOL);
}
void ndpi_search_flash(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
// struct ndpi_id_struct *src=ndpi_struct->src;
// struct ndpi_id_struct *dst=ndpi_struct->dst;
if (flow->l4.tcp.flash_stage == 0 && packet->payload_packet_len > 0
&& (packet->payload[0] == 0x03 || packet->payload[0] == 0x06)) {
flow->l4.tcp.flash_bytes = packet->payload_packet_len;
if (packet->tcp->psh == 0) {
NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG, "FLASH pass 1: \n");
flow->l4.tcp.flash_stage = packet->packet_direction + 1;
NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
"FLASH pass 1: flash_stage: %u, flash_bytes: %u\n", flow->l4.tcp.flash_stage,
flow->l4.tcp.flash_bytes);
return;
} else if (packet->tcp->psh != 0 && flow->l4.tcp.flash_bytes == 1537) {
NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
"FLASH hit: flash_stage: %u, flash_bytes: %u\n", flow->l4.tcp.flash_stage,
flow->l4.tcp.flash_bytes);
flow->l4.tcp.flash_stage = 3;
ndpi_int_flash_add_connection(ndpi_struct, flow);
return;
}
} else if (flow->l4.tcp.flash_stage == 1 + packet->packet_direction) {
flow->l4.tcp.flash_bytes += packet->payload_packet_len;
if (packet->tcp->psh != 0 && flow->l4.tcp.flash_bytes == 1537) {
NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
"FLASH hit: flash_stage: %u, flash_bytes: %u\n", flow->l4.tcp.flash_stage,
flow->l4.tcp.flash_bytes);
flow->l4.tcp.flash_stage = 3;
ndpi_int_flash_add_connection(ndpi_struct, flow);
return;
} else if (packet->tcp->psh == 0 && flow->l4.tcp.flash_bytes < 1537) {
NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
"FLASH pass 2: flash_stage: %u, flash_bytes: %u\n", flow->l4.tcp.flash_stage,
flow->l4.tcp.flash_bytes);
return;
}
}
NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG,
"FLASH might be excluded: flash_stage: %u, flash_bytes: %u, packet_direction: %u\n",
flow->l4.tcp.flash_stage, flow->l4.tcp.flash_bytes, packet->packet_direction);
#ifdef NDPI_PROTOCOL_HTTP
if (NDPI_COMPARE_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_HTTP) != 0) {
#endif /* NDPI_PROTOCOL_HTTP */
NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG, "FLASH: exclude\n");
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, NDPI_PROTOCOL_FLASH);
#ifdef NDPI_PROTOCOL_HTTP
} else {
NDPI_LOG(NDPI_PROTOCOL_FLASH, ndpi_struct, NDPI_LOG_DEBUG, "FLASH avoid early exclude from http\n");
}
#endif /* NDPI_PROTOCOL_HTTP */
}
#endif