From a98d7ff433c234eeec83e96a4e33645d6f7205bd Mon Sep 17 00:00:00 2001 From: Toni Date: Mon, 2 Oct 2023 18:10:47 +0200 Subject: Added HAProxy protocol. (#2088) * fixed tests/do.sh.in failure print Signed-off-by: lns Signed-off-by: Toni Uhlig --- src/lib/protocols/haproxy.c | 78 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/lib/protocols/haproxy.c (limited to 'src/lib/protocols/haproxy.c') diff --git a/src/lib/protocols/haproxy.c b/src/lib/protocols/haproxy.c new file mode 100644 index 000000000..8354df9db --- /dev/null +++ b/src/lib/protocols/haproxy.c @@ -0,0 +1,78 @@ +/* + * haproxy.c + * + * Copyright (C) 2023 - ntop.org + * + * nDPI is free software: you can zmqtribute 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_HAPROXY + +#include "ndpi_api.h" + +static void ndpi_int_haproxy_add_connection(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) +{ + ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_HAPROXY, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI); +} + +static void ndpi_search_haproxy(struct ndpi_detection_module_struct *ndpi_struct, + struct ndpi_flow_struct *flow) +{ + struct ndpi_packet_struct *packet = &ndpi_struct->packet; + const uint8_t *haproxy_end; + + NDPI_LOG_DBG(ndpi_struct, "search HAProxy\n"); + + if (packet->payload_packet_len < NDPI_STATICSTRING_LEN("PROXY TCP")) + { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + return; + } + + if (strncmp((char *)packet->payload, "PROXY TCP", NDPI_STATICSTRING_LEN("PROXY TCP")) != 0) + { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + return; + } + + /* The following code may be also used in the future to call subprotocol dissectors e.g. TLS. */ + haproxy_end = (uint8_t *)ndpi_strnstr((char *)packet->payload, "\r\n", packet->payload_packet_len); + if (haproxy_end == NULL) + { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + return; + } + haproxy_end += 2; + if (packet->payload_packet_len - (haproxy_end - packet->payload) == 0) + { + NDPI_EXCLUDE_PROTO(ndpi_struct, flow); + return; + } + + ndpi_int_haproxy_add_connection(ndpi_struct, flow); +} + +void init_haproxy_dissector(struct ndpi_detection_module_struct *ndpi_struct, + u_int32_t *id) +{ + ndpi_set_bitmask_protocol_detection("HAProxy", ndpi_struct, *id, + NDPI_PROTOCOL_HAPROXY, + ndpi_search_haproxy, + 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