diff options
Diffstat (limited to 'src/lib/protocols')
| -rw-r--r-- | src/lib/protocols/telnet.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/src/lib/protocols/telnet.c b/src/lib/protocols/telnet.c index 0fd00e6d4..35693bf62 100644 --- a/src/lib/protocols/telnet.c +++ b/src/lib/protocols/telnet.c @@ -1,8 +1,8 @@ /* * telnet.c * - * Copyright (C) 2009-2011 by ipoque GmbH * Copyright (C) 2011-19 - ntop.org + * Copyright (C) 2009-2011 by ipoque GmbH * * This file is part of nDPI, an open source deep packet inspection * library based on the OpenDPI and PACE technology by ipoque GmbH @@ -47,6 +47,34 @@ static int search_telnet_again(struct ndpi_detection_module_struct *ndpi_struct, if(packet->payload_packet_len > 0) { int i; + if(flow->protos.telnet.username_detected) { + if((!flow->protos.telnet.password_found) + && (packet->payload_packet_len > 6)) { + + if(strncasecmp((char*)packet->payload, "password:", 9) == 0) { + flow->protos.telnet.password_found = 1; + } + + return(1); + } + + if(packet->payload[0] == '\r') { + if(!flow->protos.telnet.password_found) + return(1); + + flow->protos.telnet.password_detected = 1; + flow->protos.telnet.password[flow->protos.telnet.character_id] = '\0'; + return(0); + } + + for(i=0; i<packet->payload_packet_len; i++) { + if(flow->protos.telnet.character_id < (sizeof(flow->protos.telnet.password)-1)) + flow->protos.telnet.password[flow->protos.telnet.character_id++] = packet->payload[i]; + } + + return(1); + } + if((!flow->protos.telnet.username_found) && (packet->payload_packet_len > 6)) { @@ -60,7 +88,8 @@ static int search_telnet_again(struct ndpi_detection_module_struct *ndpi_struct, if(packet->payload[0] == '\r') { flow->protos.telnet.username_detected = 1; flow->protos.telnet.username[flow->protos.telnet.character_id] = '\0'; - return(0); + flow->protos.telnet.character_id = 0; + return(1); } for(i=0; i<packet->payload_packet_len; i++) { |