#include #include #include #include #include #include #include #include #include "nDPIsrvd.h" #include "utils.h" #define MAX_RISKS_PER_FLOW 8 #define MAX_SEVERITIES_PER_FLOW 4 static int main_thread_shutdown = 0; static int influxd_timerfd = -1; static char * pidfile = NULL; static char * serv_optarg = NULL; static char * user = NULL; static char * group = NULL; static int test_mode = 0; static char * influxdb_interval = NULL; static nDPIsrvd_ull influxdb_interval_ull = 0uL; static char * influxdb_url = NULL; static char * influxdb_token = NULL; struct flow_user_data { nDPIsrvd_ull last_flow_src_l4_payload_len; nDPIsrvd_ull last_flow_dst_l4_payload_len; uint8_t risks[MAX_RISKS_PER_FLOW]; uint8_t severities[MAX_SEVERITIES_PER_FLOW]; uint8_t category; uint8_t breed; uint8_t confidence; // "fallthroughs" if we are not in sync with nDPI uint8_t risk_ndpid_invalid : 1; uint8_t category_ndpid_invalid : 1; uint8_t breed_ndpid_invalid : 1; uint8_t confidence_ndpid_invalid : 1; // detection status uint8_t new_seen : 1; uint8_t is_detected : 1; uint8_t is_guessed : 1; uint8_t is_not_detected : 1; // flow state uint8_t is_info : 1; uint8_t is_finished : 1; // Layer3 / Layer4 uint8_t is_ip4 : 1; uint8_t is_ip6 : 1; uint8_t is_other_l3 : 1; uint8_t is_tcp : 1; uint8_t is_udp : 1; uint8_t is_icmp : 1; uint8_t is_other_l4 : 1; }; struct influx_ctx { CURL * curl; CURLcode last_result; struct curl_slist * http_header; }; static struct { pthread_mutex_t rw_lock; struct { uint64_t json_lines; uint64_t json_bytes; uint64_t flow_new_count; uint64_t flow_end_count; uint64_t flow_idle_count; uint64_t flow_update_count; uint64_t flow_analyse_count; uint64_t flow_guessed_count; uint64_t flow_detected_count; uint64_t flow_detection_update_count; uint64_t flow_not_detected_count; uint64_t packet_count; uint64_t packet_flow_count; uint64_t init_count; uint64_t reconnect_count; uint64_t shutdown_count; uint64_t status_count; uint64_t error_unknown_datalink; uint64_t error_unknown_l3_protocol; uint64_t error_unsupported_datalink; uint64_t error_packet_too_short; uint64_t error_packet_type_unknown; uint64_t error_packet_header_invalid; uint64_t error_ip4_packet_too_short; uint64_t error_ip4_size_smaller_than_header; uint64_t error_ip4_l4_payload_detection; uint64_t error_ip6_packet_too_short; uint64_t error_ip6_size_smaller_than_header; uint64_t error_ip6_l4_payload_detection; uint64_t error_tcp_packet_too_short; uint64_t error_udp_packet_too_short; uint64_t error_capture_size_smaller_than_packet; uint64_t error_max_flows_to_track; uint64_t error_flow_memory_alloc; uint64_t flow_src_total_bytes; uint64_t flow_dst_total_bytes; uint64_t flow_risky_count; } counters; struct { uint64_t flow_state_info; uint64_t flow_state_finished; uint64_t flow_breed_safe_count; uint64_t flow_breed_acceptable_count; uint64_t flow_breed_fun_count; uint64_t flow_breed_unsafe_count; uint64_t flow_breed_potentially_dangerous_count; uint64_t flow_breed_tracker_ads_count; uint64_t flow_breed_dangerous_count; uint64_t flow_breed_unrated_count; uint64_t flow_breed_unknown_count; uint64_t flow_category_unspecified_count; uint64_t flow_category_media_count; uint64_t flow_category_vpn_count; uint64_t flow_category_email_count; uint64_t flow_category_data_transfer_count; uint64_t flow_category_web_count; uint64_t flow_category_social_network_count; uint64_t flow_category_download_count; uint64_t flow_category_game_count; uint64_t flow_category_chat_count; uint64_t flow_category_voip_count; uint64_t flow_category_database_count; uint64_t flow_category_remote_access_count; uint64_t flow_category_cloud_count; uint64_t flow_category_network_count; uint64_t flow_category_collaborative_count; uint64_t flow_category_rpc_count; uint64_t flow_category_streaming_count; uint64_t flow_category_system_count; uint64_t flow_category_software_update_count; uint64_t flow_category_music_count; uint64_t flow_category_video_count; uint64_t flow_category_shopping_count; uint64_t flow_category_productivity_count; uint64_t flow_category_file_sharing_count; uint64_t flow_category_conn_check_count; uint64_t flow_category_iot_scada_count; uint64_t flow_category_virt_assistant_count; uint64_t flow_category_cybersecurity_count; uint64_t flow_category_adult_content_count; uint64_t flow_category_mining_count; uint64_t flow_category_malware_count; uint64_t flow_category_advertisment_count; uint64_t flow_category_banned_site_count; uint64_t flow_category_site_unavail_count; uint64_t flow_category_allowed_site_count; uint64_t flow_category_antimalware_count; uint64_t flow_category_crypto_currency_count; uint64_t flow_category_gambling_count; uint64_t flow_category_health_count; uint64_t flow_category_unknown_count; uint64_t flow_confidence_by_port; uint64_t flow_confidence_dpi_partial; uint64_t flow_confidence_dpi_partial_cache; uint64_t flow_confidence_dpi_cache; uint64_t flow_confidence_dpi; uint64_t flow_confidence_nbpf; uint64_t flow_confidence_by_ip; uint64_t flow_confidence_dpi_aggressive; uint64_t flow_confidence_custom_rule; uint64_t flow_confidence_unknown; uint64_t flow_severity_low; uint64_t flow_severity_medium; uint64_t flow_severity_high; uint64_t flow_severity_severe; uint64_t flow_severity_critical; uint64_t flow_severity_emergency; uint64_t flow_severity_unknown; uint64_t flow_l3_ip4_count; uint64_t flow_l3_ip6_count; uint64_t flow_l3_other_count; uint64_t flow_l4_tcp_count; uint64_t flow_l4_udp_count; uint64_t flow_l4_icmp_count; uint64_t flow_l4_other_count; uint64_t flow_active_count; uint64_t flow_detected_count; uint64_t flow_guessed_count; uint64_t flow_not_detected_count; nDPIsrvd_ull flow_risk_count[NDPI_MAX_RISK - 1 /* NDPI_NO_RISK */]; nDPIsrvd_ull flow_risk_unknown_count; } gauges[2]; /* values after InfluxDB push: gauges[0] -= gauges[1], gauges[1] is zero'd afterwards */ } influxd_statistics = {.rw_lock = PTHREAD_MUTEX_INITIALIZER}; struct global_map { char const * const json_key; struct { uint64_t * const global_stat_inc; uint64_t * const global_stat_dec; }; }; #define INFLUXD_STATS_COUNTER_PTR(member) {.global_stat_inc = &(influxd_statistics.counters.member), NULL} #define INFLUXD_STATS_GAUGE_PTR(member) \ {.global_stat_inc = &(influxd_statistics.gauges[0].member), \ .global_stat_dec = &(influxd_statistics.gauges[1].member)} #define INFLUXD_STATS_COUNTER_INC(member) (influxd_statistics.counters.member++) #define INFLUXD_STATS_GAUGE_RES(member) (influxd_statistics.gauges[0].member--) #define INFLUXD_STATS_GAUGE_INC(member) (influxd_statistics.gauges[0].member++) #define INFLUXD_STATS_GAUGE_DEC(member) (influxd_statistics.gauges[1].member++) #define INFLUXD_STATS_GAUGE_SUB(member) (influxd_statistics.gauges[0].member -= influxd_statistics.gauges[1].member) #define INFLUXD_STATS_MAP_NOTNULL(map, index) (map[index - 1].global_stat_dec != NULL) #define INFLUXD_STATS_MAP_DEC(map, index) ((*map[index - 1].global_stat_dec)++) static struct global_map const flow_event_map[] = {{"new", INFLUXD_STATS_COUNTER_PTR(flow_new_count)}, {"end", INFLUXD_STATS_COUNTER_PTR(flow_end_count)}, {"idle", INFLUXD_STATS_COUNTER_PTR(flow_idle_count)}, {"update", INFLUXD_STATS_COUNTER_PTR(flow_update_count)}, {"analyse", INFLUXD_STATS_COUNTER_PTR(flow_analyse_count)}, {"guessed", INFLUXD_STATS_COUNTER_PTR(flow_guessed_count)}, {"detected", INFLUXD_STATS_COUNTER_PTR(flow_detected_count)}, {"detection-update", INFLUXD_STATS_COUNTER_PTR(flow_detection_update_count)}, {"not-detected", INFLUXD_STATS_COUNTER_PTR(flow_not_detected_count)}}; static struct global_map const packet_event_map[] = {{"packet", INFLUXD_STATS_COUNTER_PTR(packet_count)}, {"packet-flow", INFLUXD_STATS_COUNTER_PTR(packet_flow_count)}}; static struct global_map const daemon_event_map[] = {{"init", INFLUXD_STATS_COUNTER_PTR(init_count)}, {"reconnect", INFLUXD_STATS_COUNTER_PTR(reconnect_count)}, {"shutdown", INFLUXD_STATS_COUNTER_PTR(shutdown_count)}, {"status", INFLUXD_STATS_COUNTER_PTR(status_count)}}; static struct global_map const error_event_map[] = { {"Unknown datalink layer packet", INFLUXD_STATS_COUNTER_PTR(error_unknown_datalink)}, {"Unknown L3 protocol", INFLUXD_STATS_COUNTER_PTR(error_unknown_l3_protocol)}, {"Unsupported datalink layer", INFLUXD_STATS_COUNTER_PTR(error_unsupported_datalink)}, {"Packet too short", INFLUXD_STATS_COUNTER_PTR(error_packet_too_short)}, {"Unknown packet type", INFLUXD_STATS_COUNTER_PTR(error_packet_type_unknown)}, {"Packet header invalid", INFLUXD_STATS_COUNTER_PTR(error_packet_header_invalid)}, {"IP4 packet too short", INFLUXD_STATS_COUNTER_PTR(error_ip4_packet_too_short)}, {"Packet smaller than IP4 header", INFLUXD_STATS_COUNTER_PTR(error_ip4_size_smaller_than_header)}, {"nDPI IPv4\\/L4 payload detection failed", INFLUXD_STATS_COUNTER_PTR(error_ip4_l4_payload_detection)}, {"IP6 packet too short", INFLUXD_STATS_COUNTER_PTR(error_ip6_packet_too_short)}, {"Packet smaller than IP6 header", INFLUXD_STATS_COUNTER_PTR(error_ip6_size_smaller_than_header)}, {"nDPI IPv6\\/L4 payload detection failed", INFLUXD_STATS_COUNTER_PTR(error_ip6_l4_payload_detection)}, {"TCP packet smaller than expected", INFLUXD_STATS_COUNTER_PTR(error_tcp_packet_too_short)}, {"UDP packet smaller than expected", INFLUXD_STATS_COUNTER_PTR(error_udp_packet_too_short)}, {"Captured packet size is smaller than expected packet size", INFLUXD_STATS_COUNTER_PTR(error_capture_size_smaller_than_packet)}, {"Max flows to track reached", INFLUXD_STATS_COUNTER_PTR(error_max_flows_to_track)}, {"Flow memory allocation failed", INFLUXD_STATS_COUNTER_PTR(error_flow_memory_alloc)}}; static struct global_map const breeds_map[] = {{"Safe", INFLUXD_STATS_GAUGE_PTR(flow_breed_safe_count)}, {"Acceptable", INFLUXD_STATS_GAUGE_PTR(flow_breed_acceptable_count)}, {"Fun", INFLUXD_STATS_GAUGE_PTR(flow_breed_fun_count)}, {"Unsafe", INFLUXD_STATS_GAUGE_PTR(flow_breed_unsafe_count)}, {"Potentially Dangerous", INFLUXD_STATS_GAUGE_PTR(flow_breed_potentially_dangerous_count)}, {"Tracker\\/Ads", INFLUXD_STATS_GAUGE_PTR(flow_breed_tracker_ads_count)}, {"Dangerous", INFLUXD_STATS_GAUGE_PTR(flow_breed_dangerous_count)}, {"Unrated", INFLUXD_STATS_GAUGE_PTR(flow_breed_unrated_count)}, {NULL, INFLUXD_STATS_GAUGE_PTR(flow_breed_unknown_count)}}; static struct global_map const categories_map[] = { {"Unspecified", INFLUXD_STATS_GAUGE_PTR(flow_category_unspecified_count)}, {"Media", INFLUXD_STATS_GAUGE_PTR(flow_category_media_count)}, {"VPN", INFLUXD_STATS_GAUGE_PTR(flow_category_vpn_count)}, {"Email", INFLUXD_STATS_GAUGE_PTR(flow_category_email_count)}, {"DataTransfer", INFLUXD_STATS_GAUGE_PTR(flow_category_data_transfer_count)}, {"Web", INFLUXD_STATS_GAUGE_PTR(flow_category_web_count)}, {"SocialNetwork", INFLUXD_STATS_GAUGE_PTR(flow_category_social_network_count)}, {"Download", INFLUXD_STATS_GAUGE_PTR(flow_category_download_count)}, {"Game", INFLUXD_STATS_GAUGE_PTR(flow_category_game_count)}, {"Chat", INFLUXD_STATS_GAUGE_PTR(flow_category_chat_count)}, {"VoIP", INFLUXD_STATS_GAUGE_PTR(flow_category_voip_count)}, {"Database", INFLUXD_STATS_GAUGE_PTR(flow_category_database_count)}, {"RemoteAccess", INFLUXD_STATS_GAUGE_PTR(flow_category_remote_access_count)}, {"Cloud", INFLUXD_STATS_GAUGE_PTR(flow_category_cloud_count)}, {"Network", INFLUXD_STATS_GAUGE_PTR(flow_category_network_count)}, {"Collaborative", INFLUXD_STATS_GAUGE_PTR(flow_category_collaborative_count)}, {"RPC", INFLUXD_STATS_GAUGE_PTR(flow_category_rpc_count)}, {"Streaming", INFLUXD_STATS_GAUGE_PTR(flow_category_streaming_count)}, {"System", INFLUXD_STATS_GAUGE_PTR(flow_category_system_count)}, {"SoftwareUpdate", INFLUXD_STATS_GAUGE_PTR(flow_category_software_update_count)}, {"Music", INFLUXD_STATS_GAUGE_PTR(flow_category_music_count)}, {"Video", INFLUXD_STATS_GAUGE_PTR(flow_category_video_count)}, {"Shopping", INFLUXD_STATS_GAUGE_PTR(flow_category_shopping_count)}, {"Productivity", INFLUXD_STATS_GAUGE_PTR(flow_category_productivity_count)}, {"FileSharing", INFLUXD_STATS_GAUGE_PTR(flow_category_file_sharing_count)}, {"ConnCheck", INFLUXD_STATS_GAUGE_PTR(flow_category_conn_check_count)}, {"IoT-Scada", INFLUXD_STATS_GAUGE_PTR(flow_category_iot_scada_count)}, {"VirtAssistant", INFLUXD_STATS_GAUGE_PTR(flow_category_virt_assistant_count)}, {"Cybersecurity", INFLUXD_STATS_GAUGE_PTR(flow_category_cybersecurity_count)}, {"AdultContent", INFLUXD_STATS_GAUGE_PTR(flow_category_adult_content_count)}, {"Mining", INFLUXD_STATS_GAUGE_PTR(flow_category_mining_count)}, {"Malware", INFLUXD_STATS_GAUGE_PTR(flow_category_malware_count)}, {"Advertisement", INFLUXD_STATS_GAUGE_PTR(flow_category_advertisment_count)}, {"Banned_Site", INFLUXD_STATS_GAUGE_PTR(flow_category_banned_site_count)}, {"Site_Unavailable", INFLUXD_STATS_GAUGE_PTR(flow_category_site_unavail_count)}, {"Allowed_Site", INFLUXD_STATS_GAUGE_PTR(flow_category_allowed_site_count)}, {"Antimalware", INFLUXD_STATS_GAUGE_PTR(flow_category_antimalware_count)}, {"Crypto_Currency", INFLUXD_STATS_GAUGE_PTR(flow_category_crypto_currency_count)}, {"Gambling", INFLUXD_STATS_GAUGE_PTR(flow_category_gambling_count)}, {"Health", INFLUXD_STATS_GAUGE_PTR(flow_category_health_count)}, {NULL, INFLUXD_STATS_GAUGE_PTR(flow_category_unknown_count)}}; static struct global_map const confidence_map[] = { {"Match by port", INFLUXD_STATS_GAUGE_PTR(flow_confidence_by_port)}, {"DPI (partial)", INFLUXD_STATS_GAUGE_PTR(flow_confidence_dpi_partial)}, {"DPI (partial cache)", INFLUXD_STATS_GAUGE_PTR(flow_confidence_dpi_partial_cache)}, {"DPI (cache)", INFLUXD_STATS_GAUGE_PTR(flow_confidence_dpi_cache)}, {"DPI", INFLUXD_STATS_GAUGE_PTR(flow_confidence_dpi)}, {"nBPF", INFLUXD_STATS_GAUGE_PTR(flow_confidence_nbpf)}, {"Match by IP", INFLUXD_STATS_GAUGE_PTR(flow_confidence_by_ip)}, {"DPI (aggressive)", INFLUXD_STATS_GAUGE_PTR(flow_confidence_dpi_aggressive)}, {"Match by custom rule", INFLUXD_STATS_GAUGE_PTR(flow_confidence_custom_rule)}, {NULL, INFLUXD_STATS_GAUGE_PTR(flow_confidence_unknown)}}; static struct global_map const severity_map[] = {{"Low", INFLUXD_STATS_GAUGE_PTR(flow_severity_low)}, {"Medium", INFLUXD_STATS_GAUGE_PTR(flow_severity_medium)}, {"High", INFLUXD_STATS_GAUGE_PTR(flow_severity_high)}, {"Severe", INFLUXD_STATS_GAUGE_PTR(flow_severity_severe)}, {"Critical", INFLUXD_STATS_GAUGE_PTR(flow_severity_critical)}, {"Emergency", INFLUXD_STATS_GAUGE_PTR(flow_severity_emergency)}, {NULL, INFLUXD_STATS_GAUGE_PTR(flow_severity_unknown)}}; #ifdef ENABLE_MEMORY_PROFILING void nDPIsrvd_memprof_log_alloc(size_t alloc_size) { (void)alloc_size; } void nDPIsrvd_memprof_log_free(size_t free_size) { (void)free_size; } void nDPIsrvd_memprof_log(char const * const format, ...) { va_list ap; va_start(ap, format); logger(0, "%s", "nDPIsrvd MemoryProfiler: "); vlogger(0, format, ap); va_end(ap); } #endif #define INFLUXDB_FORMAT() "%s=%llu," #define INFLUXDB_FORMAT_END() "%s=%llu\n" #define INFLUXDB_VALUE_COUNTER(value) #value, (unsigned long long int)influxd_statistics.counters.value #define INFLUXDB_VALUE_GAUGE(value) #value, (unsigned long long int)influxd_statistics.gauges[0].value #define CHECK_SNPRINTF_RET(bytes) \ do \ { \ if (bytes <= 0 || (size_t)bytes >= siz) \ { \ goto failure; \ } \ else \ { \ buf += bytes; \ siz -= bytes; \ } \ } while (0) static int serialize_influx_line(char * buf, size_t siz) { int bytes; pthread_mutex_lock(&influxd_statistics.rw_lock); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "general", INFLUXDB_VALUE_COUNTER(json_lines), INFLUXDB_VALUE_COUNTER(json_bytes), INFLUXDB_VALUE_COUNTER(flow_src_total_bytes), INFLUXDB_VALUE_COUNTER(flow_dst_total_bytes)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "events", INFLUXDB_VALUE_COUNTER(flow_new_count), INFLUXDB_VALUE_COUNTER(flow_end_count), INFLUXDB_VALUE_COUNTER(flow_idle_count), INFLUXDB_VALUE_COUNTER(flow_update_count), INFLUXDB_VALUE_COUNTER(flow_analyse_count), INFLUXDB_VALUE_COUNTER(flow_guessed_count), INFLUXDB_VALUE_COUNTER(flow_detected_count), INFLUXDB_VALUE_COUNTER(flow_detection_update_count), INFLUXDB_VALUE_COUNTER(flow_not_detected_count), INFLUXDB_VALUE_COUNTER(flow_risky_count), INFLUXDB_VALUE_COUNTER(packet_count), INFLUXDB_VALUE_COUNTER(packet_flow_count), INFLUXDB_VALUE_COUNTER(init_count), INFLUXDB_VALUE_COUNTER(reconnect_count), INFLUXDB_VALUE_COUNTER(shutdown_count), INFLUXDB_VALUE_COUNTER(status_count), INFLUXDB_VALUE_COUNTER(error_unknown_datalink), INFLUXDB_VALUE_COUNTER(error_unknown_l3_protocol), INFLUXDB_VALUE_COUNTER(error_unsupported_datalink), INFLUXDB_VALUE_COUNTER(error_packet_too_short), INFLUXDB_VALUE_COUNTER(error_packet_type_unknown), INFLUXDB_VALUE_COUNTER(error_packet_header_invalid), INFLUXDB_VALUE_COUNTER(error_ip4_packet_too_short), INFLUXDB_VALUE_COUNTER(error_ip4_size_smaller_than_header), INFLUXDB_VALUE_COUNTER(error_ip4_l4_payload_detection), INFLUXDB_VALUE_COUNTER(error_ip6_packet_too_short), INFLUXDB_VALUE_COUNTER(error_ip6_size_smaller_than_header), INFLUXDB_VALUE_COUNTER(error_ip6_l4_payload_detection), INFLUXDB_VALUE_COUNTER(error_tcp_packet_too_short), INFLUXDB_VALUE_COUNTER(error_udp_packet_too_short), INFLUXDB_VALUE_COUNTER(error_capture_size_smaller_than_packet), INFLUXDB_VALUE_COUNTER(error_max_flows_to_track), INFLUXDB_VALUE_COUNTER(error_flow_memory_alloc)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "state", INFLUXDB_VALUE_GAUGE(flow_state_info), INFLUXDB_VALUE_GAUGE(flow_state_finished)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "breed", INFLUXDB_VALUE_GAUGE(flow_breed_safe_count), INFLUXDB_VALUE_GAUGE(flow_breed_acceptable_count), INFLUXDB_VALUE_GAUGE(flow_breed_fun_count), INFLUXDB_VALUE_GAUGE(flow_breed_unsafe_count), INFLUXDB_VALUE_GAUGE(flow_breed_potentially_dangerous_count), INFLUXDB_VALUE_GAUGE(flow_breed_tracker_ads_count), INFLUXDB_VALUE_GAUGE(flow_breed_dangerous_count), INFLUXDB_VALUE_GAUGE(flow_breed_unrated_count), INFLUXDB_VALUE_GAUGE(flow_breed_unknown_count)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "category", INFLUXDB_VALUE_GAUGE(flow_category_unspecified_count), INFLUXDB_VALUE_GAUGE(flow_category_media_count), INFLUXDB_VALUE_GAUGE(flow_category_vpn_count), INFLUXDB_VALUE_GAUGE(flow_category_email_count), INFLUXDB_VALUE_GAUGE(flow_category_data_transfer_count), INFLUXDB_VALUE_GAUGE(flow_category_web_count), INFLUXDB_VALUE_GAUGE(flow_category_social_network_count), INFLUXDB_VALUE_GAUGE(flow_category_download_count), INFLUXDB_VALUE_GAUGE(flow_category_game_count), INFLUXDB_VALUE_GAUGE(flow_category_chat_count), INFLUXDB_VALUE_GAUGE(flow_category_voip_count), INFLUXDB_VALUE_GAUGE(flow_category_database_count), INFLUXDB_VALUE_GAUGE(flow_category_remote_access_count), INFLUXDB_VALUE_GAUGE(flow_category_cloud_count), INFLUXDB_VALUE_GAUGE(flow_category_network_count), INFLUXDB_VALUE_GAUGE(flow_category_collaborative_count), INFLUXDB_VALUE_GAUGE(flow_category_rpc_count), INFLUXDB_VALUE_GAUGE(flow_category_streaming_count), INFLUXDB_VALUE_GAUGE(flow_category_system_count), INFLUXDB_VALUE_GAUGE(flow_category_software_update_count), INFLUXDB_VALUE_GAUGE(flow_category_music_count), INFLUXDB_VALUE_GAUGE(flow_category_video_count), INFLUXDB_VALUE_GAUGE(flow_category_shopping_count), INFLUXDB_VALUE_GAUGE(flow_category_productivity_count), INFLUXDB_VALUE_GAUGE(flow_category_file_sharing_count), INFLUXDB_VALUE_GAUGE(flow_category_conn_check_count), INFLUXDB_VALUE_GAUGE(flow_category_iot_scada_count), INFLUXDB_VALUE_GAUGE(flow_category_virt_assistant_count), INFLUXDB_VALUE_GAUGE(flow_category_cybersecurity_count), INFLUXDB_VALUE_GAUGE(flow_category_adult_content_count), INFLUXDB_VALUE_GAUGE(flow_category_mining_count), INFLUXDB_VALUE_GAUGE(flow_category_malware_count), INFLUXDB_VALUE_GAUGE(flow_category_advertisment_count), INFLUXDB_VALUE_GAUGE(flow_category_banned_site_count), INFLUXDB_VALUE_GAUGE(flow_category_site_unavail_count), INFLUXDB_VALUE_GAUGE(flow_category_allowed_site_count), INFLUXDB_VALUE_GAUGE(flow_category_antimalware_count), INFLUXDB_VALUE_GAUGE(flow_category_crypto_currency_count), INFLUXDB_VALUE_GAUGE(flow_category_gambling_count), INFLUXDB_VALUE_GAUGE(flow_category_health_count), INFLUXDB_VALUE_GAUGE(flow_category_unknown_count)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "confidence", INFLUXDB_VALUE_GAUGE(flow_confidence_by_port), INFLUXDB_VALUE_GAUGE(flow_confidence_dpi_partial), INFLUXDB_VALUE_GAUGE(flow_confidence_dpi_partial_cache), INFLUXDB_VALUE_GAUGE(flow_confidence_dpi_cache), INFLUXDB_VALUE_GAUGE(flow_confidence_dpi), INFLUXDB_VALUE_GAUGE(flow_confidence_nbpf), INFLUXDB_VALUE_GAUGE(flow_confidence_by_ip), INFLUXDB_VALUE_GAUGE(flow_confidence_dpi_aggressive), INFLUXDB_VALUE_GAUGE(flow_confidence_custom_rule), INFLUXDB_VALUE_GAUGE(flow_confidence_unknown)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "severity", INFLUXDB_VALUE_GAUGE(flow_severity_low), INFLUXDB_VALUE_GAUGE(flow_severity_medium), INFLUXDB_VALUE_GAUGE(flow_severity_high), INFLUXDB_VALUE_GAUGE(flow_severity_severe), INFLUXDB_VALUE_GAUGE(flow_severity_critical), INFLUXDB_VALUE_GAUGE(flow_severity_emergency), INFLUXDB_VALUE_GAUGE(flow_severity_unknown)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "layer3", INFLUXDB_VALUE_GAUGE(flow_l3_ip4_count), INFLUXDB_VALUE_GAUGE(flow_l3_ip6_count), INFLUXDB_VALUE_GAUGE(flow_l3_other_count)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "layer4", INFLUXDB_VALUE_GAUGE(flow_l4_tcp_count), INFLUXDB_VALUE_GAUGE(flow_l4_udp_count), INFLUXDB_VALUE_GAUGE(flow_l4_icmp_count), INFLUXDB_VALUE_GAUGE(flow_l4_other_count)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT() INFLUXDB_FORMAT_END(), "detection", INFLUXDB_VALUE_GAUGE(flow_active_count), INFLUXDB_VALUE_GAUGE(flow_detected_count), INFLUXDB_VALUE_GAUGE(flow_guessed_count), INFLUXDB_VALUE_GAUGE(flow_not_detected_count)); CHECK_SNPRINTF_RET(bytes); bytes = snprintf(buf, siz, "%s " INFLUXDB_FORMAT(), "risks", INFLUXDB_VALUE_GAUGE(flow_risk_unknown_count)); CHECK_SNPRINTF_RET(bytes); for (size_t i = 0; i < NDPI_MAX_RISK - 1 /* NDPI_NO_RISK */; ++i) { bytes = snprintf(buf, siz, "flow_risk_%zu_count=%llu,", i + 1, influxd_statistics.gauges[0].flow_risk_count[i]); CHECK_SNPRINTF_RET(bytes); } buf[-1] = '\n'; failure: memset(&influxd_statistics.counters, 0, sizeof(influxd_statistics.counters)); INFLUXD_STATS_GAUGE_SUB(flow_state_info); INFLUXD_STATS_GAUGE_SUB(flow_state_finished); INFLUXD_STATS_GAUGE_SUB(flow_breed_safe_count); INFLUXD_STATS_GAUGE_SUB(flow_breed_acceptable_count); INFLUXD_STATS_GAUGE_SUB(flow_breed_fun_count); INFLUXD_STATS_GAUGE_SUB(flow_breed_unsafe_count); INFLUXD_STATS_GAUGE_SUB(flow_breed_potentially_dangerous_count); INFLUXD_STATS_GAUGE_SUB(flow_breed_tracker_ads_count); INFLUXD_STATS_GAUGE_SUB(flow_breed_dangerous_count); INFLUXD_STATS_GAUGE_SUB(flow_breed_unrated_count); INFLUXD_STATS_GAUGE_SUB(flow_breed_unknown_count); INFLUXD_STATS_GAUGE_SUB(flow_category_unspecified_count); INFLUXD_STATS_GAUGE_SUB(flow_category_media_count); INFLUXD_STATS_GAUGE_SUB(flow_category_vpn_count); INFLUXD_STATS_GAUGE_SUB(flow_category_email_count); INFLUXD_STATS_GAUGE_SUB(flow_category_data_transfer_count); INFLUXD_STATS_GAUGE_SUB(flow_category_web_count); INFLUXD_STATS_GAUGE_SUB(flow_category_social_network_count); INFLUXD_STATS_GAUGE_SUB(flow_category_download_count); INFLUXD_STATS_GAUGE_SUB(flow_category_game_count); INFLUXD_STATS_GAUGE_SUB(flow_category_chat_count); INFLUXD_STATS_GAUGE_SUB(flow_category_voip_count); INFLUXD_STATS_GAUGE_SUB(flow_category_database_count); INFLUXD_STATS_GAUGE_SUB(flow_category_remote_access_count); INFLUXD_STATS_GAUGE_SUB(flow_category_cloud_count); INFLUXD_STATS_GAUGE_SUB(flow_category_network_count); INFLUXD_STATS_GAUGE_SUB(flow_category_collaborative_count); INFLUXD_STATS_GAUGE_SUB(flow_category_rpc_count); INFLUXD_STATS_GAUGE_SUB(flow_category_streaming_count); INFLUXD_STATS_GAUGE_SUB(flow_category_system_count); INFLUXD_STATS_GAUGE_SUB(flow_category_software_update_count); INFLUXD_STATS_GAUGE_SUB(flow_category_music_count); INFLUXD_STATS_GAUGE_SUB(flow_category_video_count); INFLUXD_STATS_GAUGE_SUB(flow_category_shopping_count); INFLUXD_STATS_GAUGE_SUB(flow_category_productivity_count); INFLUXD_STATS_GAUGE_SUB(flow_category_file_sharing_count); INFLUXD_STATS_GAUGE_SUB(flow_category_conn_check_count); INFLUXD_STATS_GAUGE_SUB(flow_category_iot_scada_count); INFLUXD_STATS_GAUGE_SUB(flow_category_virt_assistant_count); INFLUXD_STATS_GAUGE_SUB(flow_category_cybersecurity_count); INFLUXD_STATS_GAUGE_SUB(flow_category_adult_content_count); INFLUXD_STATS_GAUGE_SUB(flow_category_mining_count); INFLUXD_STATS_GAUGE_SUB(flow_category_malware_count); INFLUXD_STATS_GAUGE_SUB(flow_category_advertisment_count); INFLUXD_STATS_GAUGE_SUB(flow_category_banned_site_count); INFLUXD_STATS_GAUGE_SUB(flow_category_site_unavail_count); INFLUXD_STATS_GAUGE_SUB(flow_category_allowed_site_count); INFLUXD_STATS_GAUGE_SUB(flow_category_antimalware_count); INFLUXD_STATS_GAUGE_SUB(flow_category_crypto_currency_count); INFLUXD_STATS_GAUGE_SUB(flow_category_gambling_count); INFLUXD_STATS_GAUGE_SUB(flow_category_health_count); INFLUXD_STATS_GAUGE_SUB(flow_category_unknown_count); INFLUXD_STATS_GAUGE_SUB(flow_confidence_by_port); INFLUXD_STATS_GAUGE_SUB(flow_confidence_dpi_partial); INFLUXD_STATS_GAUGE_SUB(flow_confidence_dpi_partial_cache); INFLUXD_STATS_GAUGE_SUB(flow_confidence_dpi_cache); INFLUXD_STATS_GAUGE_SUB(flow_confidence_dpi); INFLUXD_STATS_GAUGE_SUB(flow_confidence_nbpf); INFLUXD_STATS_GAUGE_SUB(flow_confidence_by_ip); INFLUXD_STATS_GAUGE_SUB(flow_confidence_dpi_aggressive); INFLUXD_STATS_GAUGE_SUB(flow_confidence_custom_rule); INFLUXD_STATS_GAUGE_SUB(flow_confidence_unknown); INFLUXD_STATS_GAUGE_SUB(flow_severity_low); INFLUXD_STATS_GAUGE_SUB(flow_severity_medium); INFLUXD_STATS_GAUGE_SUB(flow_severity_high); INFLUXD_STATS_GAUGE_SUB(flow_severity_severe); INFLUXD_STATS_GAUGE_SUB(flow_severity_critical); INFLUXD_STATS_GAUGE_SUB(flow_severity_emergency); INFLUXD_STATS_GAUGE_SUB(flow_severity_unknown); INFLUXD_STATS_GAUGE_SUB(flow_l3_ip4_count); INFLUXD_STATS_GAUGE_SUB(flow_l3_ip6_count); INFLUXD_STATS_GAUGE_SUB(flow_l3_other_count); INFLUXD_STATS_GAUGE_SUB(flow_l4_tcp_count); INFLUXD_STATS_GAUGE_SUB(flow_l4_udp_count); INFLUXD_STATS_GAUGE_SUB(flow_l4_icmp_count); INFLUXD_STATS_GAUGE_SUB(flow_l4_other_count); INFLUXD_STATS_GAUGE_SUB(flow_active_count); INFLUXD_STATS_GAUGE_SUB(flow_detected_count); INFLUXD_STATS_GAUGE_SUB(flow_guessed_count); INFLUXD_STATS_GAUGE_SUB(flow_not_detected_count); for (size_t i = 0; i < NDPI_MAX_RISK - 1 /* NDPI_NO_RISK */; ++i) { INFLUXD_STATS_GAUGE_SUB(flow_risk_count[i]); } INFLUXD_STATS_GAUGE_SUB(flow_risk_unknown_count); memset(&influxd_statistics.gauges[1], 0, sizeof(influxd_statistics.gauges[1])); pthread_mutex_unlock(&influxd_statistics.rw_lock); return 0; } static int init_influx_ctx(struct influx_ctx * const ctx, char const * const url, char const * const api_token) { char auth[128]; ctx->http_header = curl_slist_append(ctx->http_header, "Content-Type: application/json"); if (ctx->http_header == NULL) { return -1; } if (snprintf(auth, sizeof(auth), "Authorization: Token %s", api_token) >= (int)sizeof(auth)) { return -1; } ctx->http_header = curl_slist_append(ctx->http_header, auth); memset(auth, '\0', sizeof(auth)); if (ctx->http_header == NULL) { return -1; } ctx->curl = curl_easy_init(); if (ctx->curl == NULL) { return -1; } if (curl_easy_setopt(ctx->curl, CURLOPT_URL, url) != CURLE_OK || curl_easy_setopt(ctx->curl, CURLOPT_USERAGENT, "nDPIsrvd-influxd") != CURLE_OK || curl_easy_setopt(ctx->curl, CURLOPT_HTTPHEADER, ctx->http_header) != CURLE_OK || curl_easy_setopt(ctx->curl, CURLOPT_TIMEOUT, (long)influxdb_interval_ull) != CURLE_OK) { return -1; } return 0; } static void free_influx_ctx(struct influx_ctx * const ctx) { curl_easy_cleanup(ctx->curl); curl_slist_free_all(ctx->http_header); ctx->curl = NULL; ctx->http_header = NULL; } static void post_influx_ctx(struct influx_ctx * const ctx) { CURLcode res; char post_buffer[BUFSIZ]; if (serialize_influx_line(post_buffer, sizeof(post_buffer)) != 0) { logger(1, "%s", "Could not serialize influx buffer"); return; } curl_easy_setopt(ctx->curl, CURLOPT_POSTFIELDS, post_buffer); res = curl_easy_perform(ctx->curl); if (res != CURLE_OK) { logger(1, "curl_easy_perform() failed: %s", curl_easy_strerror(res)); return; } } static void * send_to_influxdb(void * thread_data) { struct influx_ctx influx_ctx = {}; (void)thread_data; init_influx_ctx(&influx_ctx, influxdb_url, influxdb_token); post_influx_ctx(&influx_ctx); free_influx_ctx(&influx_ctx); return NULL; } static int start_influxdb_thread(void) { pthread_t tid; pthread_attr_t att; if (pthread_attr_init(&att) != 0) { return 1; } if (pthread_attr_setdetachstate(&att, PTHREAD_CREATE_DETACHED) != 0) { return 1; } int error = pthread_create(&tid, &att, send_to_influxdb, NULL); if (0 != error) { logger(1, "Couldn't run thread, errno %d", error); } pthread_attr_destroy(&att); return 0; } static int influxd_map_to_stat(char const * const token_str, size_t token_length, struct global_map const * const map, size_t map_length) { size_t i; size_t null_i = map_length; for (i = 0; i < map_length; ++i) { if (map[i].json_key == NULL) { null_i = i; break; } size_t key_length = strlen(map[i].json_key); if (key_length == token_length && strncmp(map[i].json_key, token_str, token_length) == 0) { (*map[i].global_stat_inc)++; return 0; } } if (null_i < map_length && map[null_i].global_stat_inc != NULL) { (*map[null_i].global_stat_inc)++; return 0; } return 1; } static int influxd_map_value_to_stat(struct nDPIsrvd_socket const * const sock, struct nDPIsrvd_json_token const * const token, struct global_map const * const map, size_t map_length) { char const * value_str = NULL; size_t value_length = 0; value_str = TOKEN_GET_VALUE(sock, token, &value_length); if (value_length == 0 || value_str == NULL) { return 1; } return influxd_map_to_stat(value_str, value_length, map, map_length); } static void influxd_unmap_flow_from_stat(struct flow_user_data const * const flow_user_data) { if (flow_user_data->is_ip4 != 0) { INFLUXD_STATS_GAUGE_DEC(flow_l3_ip4_count); } if (flow_user_data->is_ip6 != 0) { INFLUXD_STATS_GAUGE_DEC(flow_l3_ip6_count); } if (flow_user_data->is_other_l3 != 0) { INFLUXD_STATS_GAUGE_DEC(flow_l3_other_count); } if (flow_user_data->is_tcp != 0) { INFLUXD_STATS_GAUGE_DEC(flow_l4_tcp_count); } if (flow_user_data->is_udp != 0) { INFLUXD_STATS_GAUGE_DEC(flow_l4_udp_count); } if (flow_user_data->is_icmp != 0) { INFLUXD_STATS_GAUGE_DEC(flow_l4_icmp_count); } if (flow_user_data->is_other_l4 != 0) { INFLUXD_STATS_GAUGE_DEC(flow_l4_other_count); } if (flow_user_data->new_seen != 0) { INFLUXD_STATS_GAUGE_DEC(flow_active_count); } if (flow_user_data->is_detected != 0) { INFLUXD_STATS_GAUGE_DEC(flow_detected_count); } if (flow_user_data->is_guessed != 0) { INFLUXD_STATS_GAUGE_DEC(flow_guessed_count); } if (flow_user_data->is_not_detected != 0) { INFLUXD_STATS_GAUGE_DEC(flow_not_detected_count); } if (flow_user_data->is_info != 0) { INFLUXD_STATS_GAUGE_DEC(flow_state_info); } if (flow_user_data->is_finished != 0) { INFLUXD_STATS_GAUGE_DEC(flow_state_finished); } if (flow_user_data->breed > 0 && flow_user_data->breed_ndpid_invalid == 0 && INFLUXD_STATS_MAP_NOTNULL(breeds_map, flow_user_data->breed) != 0) { INFLUXD_STATS_MAP_DEC(breeds_map, flow_user_data->breed); } if (flow_user_data->category > 0 && flow_user_data->category_ndpid_invalid == 0 && INFLUXD_STATS_MAP_NOTNULL(categories_map, flow_user_data->category) != 0) { INFLUXD_STATS_MAP_DEC(categories_map, flow_user_data->category); } if (flow_user_data->confidence > 0 && flow_user_data->confidence_ndpid_invalid == 0 && INFLUXD_STATS_MAP_NOTNULL(confidence_map, flow_user_data->confidence) != 0) { INFLUXD_STATS_MAP_DEC(confidence_map, flow_user_data->confidence); } for (uint8_t i = 0; i < MAX_SEVERITIES_PER_FLOW; ++i) { if (flow_user_data->severities[i] > 0) { INFLUXD_STATS_MAP_DEC(severity_map, flow_user_data->severities[i]); } } for (uint8_t i = 0; i < MAX_RISKS_PER_FLOW; ++i) { if (flow_user_data->risks[i] > 0) { INFLUXD_STATS_GAUGE_DEC(flow_risk_count[flow_user_data->risks[i]]); } } if (flow_user_data->risk_ndpid_invalid != 0) { INFLUXD_STATS_GAUGE_DEC(flow_risk_unknown_count); } } static ssize_t influxd_map_index(char const * const json_key, size_t key_length, struct global_map const * const map, size_t map_length) { ssize_t unknown_key = -1; if (json_key == NULL || key_length == 0) { return -1; } for (size_t i = 0; i < map_length; ++i) { if (map[i].json_key == NULL) { unknown_key = i; continue; } if (key_length == strlen(map[i].json_key) && strncmp(json_key, map[i].json_key, key_length) == 0) { return i; } } return unknown_key; } static int influxd_map_flow_u8(struct nDPIsrvd_socket const * const sock, struct nDPIsrvd_json_token const * const token, struct global_map const * const map, size_t map_length, uint8_t * const dest) { if (token == NULL || dest == NULL) { return 1; } size_t len; char const * const str = TOKEN_GET_VALUE(sock, token, &len); if (str == NULL || len == 0) { return 1; } ssize_t const map_index = influxd_map_index(str, len, map, map_length); if (map_index < 0 || map_index > UCHAR_MAX) { return 1; } *dest = map_index + 1; return 0; } static void process_flow_stats(struct nDPIsrvd_socket * const sock, struct nDPIsrvd_flow * const flow) { struct flow_user_data * flow_user_data; struct nDPIsrvd_json_token const * const flow_event_name = TOKEN_GET_SZ(sock, "flow_event_name"); struct nDPIsrvd_json_token const * const flow_state = TOKEN_GET_SZ(sock, "flow_state"); nDPIsrvd_ull total_bytes_ull[2]; if (flow == NULL) { return; } flow_user_data = (struct flow_user_data *)flow->flow_user_data; if (flow_user_data == NULL) { return; } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "new") != 0) { flow_user_data->new_seen = 1; INFLUXD_STATS_GAUGE_INC(flow_active_count); struct nDPIsrvd_json_token const * const l3_proto = TOKEN_GET_SZ(sock, "l3_proto"); if (TOKEN_VALUE_EQUALS_SZ(sock, l3_proto, "ip4") != 0) { flow_user_data->is_ip4 = 1; INFLUXD_STATS_GAUGE_INC(flow_l3_ip4_count); } else if (TOKEN_VALUE_EQUALS_SZ(sock, l3_proto, "ip6") != 0) { flow_user_data->is_ip6 = 1; INFLUXD_STATS_GAUGE_INC(flow_l3_ip6_count); } else if (l3_proto != NULL) { flow_user_data->is_other_l3 = 1; INFLUXD_STATS_GAUGE_INC(flow_l3_other_count); } struct nDPIsrvd_json_token const * const l4_proto = TOKEN_GET_SZ(sock, "l4_proto"); if (TOKEN_VALUE_EQUALS_SZ(sock, l4_proto, "tcp") != 0) { flow_user_data->is_tcp = 1; INFLUXD_STATS_GAUGE_INC(flow_l4_tcp_count); } else if (TOKEN_VALUE_EQUALS_SZ(sock, l4_proto, "udp") != 0) { flow_user_data->is_udp = 1; INFLUXD_STATS_GAUGE_INC(flow_l4_udp_count); } else if (TOKEN_VALUE_EQUALS_SZ(sock, l4_proto, "icmp") != 0) { flow_user_data->is_icmp = 1; INFLUXD_STATS_GAUGE_INC(flow_l4_icmp_count); } else if (l4_proto != NULL) { flow_user_data->is_other_l4 = 1; INFLUXD_STATS_GAUGE_INC(flow_l4_other_count); } } else if (flow_user_data->new_seen == 0) { return; } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "not-detected") != 0) { flow_user_data->is_not_detected = 1; INFLUXD_STATS_GAUGE_INC(flow_not_detected_count); } else if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "guessed") != 0) { flow_user_data->is_guessed = 1; INFLUXD_STATS_GAUGE_INC(flow_guessed_count); } else if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "detected") != 0 || TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "detection-update") != 0) { struct nDPIsrvd_json_token const * const flow_risk = TOKEN_GET_SZ(sock, "ndpi", "flow_risk"); struct nDPIsrvd_json_token const * current = NULL; int next_child_index = -1; if (flow_user_data->is_detected == 0) { flow_user_data->is_detected = 1; INFLUXD_STATS_GAUGE_INC(flow_detected_count); } if (flow_risk != NULL) { if (flow_user_data->risks[0] == 0) { INFLUXD_STATS_COUNTER_INC(flow_risky_count); } while ((current = nDPIsrvd_get_next_token(sock, flow_risk, &next_child_index)) != NULL) { size_t numeric_risk_len = 0; char const * const numeric_risk_str = TOKEN_GET_KEY(sock, current, &numeric_risk_len); nDPIsrvd_ull numeric_risk_value = 0; char numeric_risk_buf[numeric_risk_len + 1]; if (numeric_risk_len > 0 && numeric_risk_str != NULL) { strncpy(numeric_risk_buf, numeric_risk_str, numeric_risk_len); numeric_risk_buf[numeric_risk_len] = '\0'; struct nDPIsrvd_json_token const * const severity = TOKEN_GET_SZ(sock, "ndpi", "flow_risk", numeric_risk_buf, "severity"); uint8_t severity_index; if (influxd_map_flow_u8( sock, severity, severity_map, nDPIsrvd_ARRAY_LENGTH(severity_map), &severity_index) != 0) { severity_index = 0; } if (severity_index != 0) { for (uint8_t i = 0; i < MAX_SEVERITIES_PER_FLOW; ++i) { if (flow_user_data->severities[i] != 0) { continue; } if (flow_user_data->severities[i] == severity_index) { break; } if (influxd_map_value_to_stat( sock, severity, severity_map, nDPIsrvd_ARRAY_LENGTH(severity_map)) != 0) { severity_index = 0; break; } flow_user_data->severities[i] = severity_index; break; } } if (severity_index == 0) { size_t value_len = 0; char const * const value_str = TOKEN_GET_VALUE(sock, severity, &value_len); if (value_len > 0 && value_str != NULL) { logger(1, "Unknown/Invalid JSON value for key 'ndpi','breed': %.*s", (int)value_len, value_str); } } if (str_value_to_ull(numeric_risk_str, &numeric_risk_value) == CONVERSION_OK) { if (numeric_risk_value < NDPI_MAX_RISK && numeric_risk_value > 0) { for (uint8_t i = 0; i < MAX_RISKS_PER_FLOW; ++i) { if (flow_user_data->risks[i] != 0) { continue; } if (flow_user_data->risks[i] == numeric_risk_value - 1) { break; } INFLUXD_STATS_GAUGE_INC(flow_risk_count[numeric_risk_value - 1]); flow_user_data->risks[i] = numeric_risk_value - 1; break; } } else if (flow_user_data->risk_ndpid_invalid == 0) { flow_user_data->risk_ndpid_invalid = 1; INFLUXD_STATS_GAUGE_INC(flow_risk_unknown_count); } } else { logger(1, "Invalid numeric risk value: %s", numeric_risk_buf); } } else { logger(1, "%s", "Missing numeric risk value"); } } } if (flow_user_data->breed == 0 && flow_user_data->breed_ndpid_invalid == 0) { struct nDPIsrvd_json_token const * const breed = TOKEN_GET_SZ(sock, "ndpi", "breed"); if (influxd_map_flow_u8( sock, breed, breeds_map, nDPIsrvd_ARRAY_LENGTH(breeds_map), &flow_user_data->breed) != 0 || influxd_map_value_to_stat(sock, breed, breeds_map, nDPIsrvd_ARRAY_LENGTH(breeds_map)) != 0) { size_t value_len = 0; char const * const value_str = TOKEN_GET_VALUE(sock, breed, &value_len); flow_user_data->breed = 0; flow_user_data->breed_ndpid_invalid = 1; if (value_len > 0 && value_str != NULL) { logger(1, "Unknown/Invalid JSON value for key 'ndpi','breed': %.*s", (int)value_len, value_str); } } } if (flow_user_data->category == 0 && flow_user_data->category_ndpid_invalid == 0) { struct nDPIsrvd_json_token const * const category = TOKEN_GET_SZ(sock, "ndpi", "category"); if (influxd_map_flow_u8( sock, category, categories_map, nDPIsrvd_ARRAY_LENGTH(categories_map), &flow_user_data->category) != 0 || influxd_map_value_to_stat(sock, category, categories_map, nDPIsrvd_ARRAY_LENGTH(categories_map)) != 0) { size_t value_len = 0; char const * const value_str = TOKEN_GET_VALUE(sock, category, &value_len); flow_user_data->category = 0; flow_user_data->category_ndpid_invalid = 1; if (value_len > 0 && value_str != NULL) { logger(1, "Unknown/Invalid JSON value for key 'ndpi','category': %.*s", (int)value_len, value_str); } } } if (flow_user_data->confidence == 0 && flow_user_data->confidence_ndpid_invalid == 0) { struct nDPIsrvd_json_token const * const token = TOKEN_GET_SZ(sock, "ndpi", "confidence"); struct nDPIsrvd_json_token const * confi_current = NULL; int confi_next_child_index = -1; if ((confi_current = nDPIsrvd_get_next_token(sock, token, &confi_next_child_index)) == NULL) { flow_user_data->confidence_ndpid_invalid = 1; } else if (nDPIsrvd_get_next_token(sock, token, &confi_next_child_index) == NULL) { if (influxd_map_flow_u8(sock, confi_current, confidence_map, nDPIsrvd_ARRAY_LENGTH(confidence_map), &flow_user_data->confidence) != 0 || influxd_map_value_to_stat( sock, confi_current, confidence_map, nDPIsrvd_ARRAY_LENGTH(confidence_map)) != 0) { flow_user_data->confidence = 0; flow_user_data->confidence_ndpid_invalid = 1; } } else { flow_user_data->confidence_ndpid_invalid = 1; } if (flow_user_data->confidence_ndpid_invalid != 0) { size_t value_len = 0; char const * const value_str = TOKEN_GET_VALUE(sock, confi_current, &value_len); logger(1, "Unknown/Invalid JSON value for key 'ndpi','confidence': %.*s", (int)value_len, value_str); } } } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_state, "info") != 0) { if (flow_user_data->is_info == 0) { flow_user_data->is_info = 1; INFLUXD_STATS_GAUGE_INC(flow_state_info); } } else if (TOKEN_VALUE_EQUALS_SZ(sock, flow_state, "finished") != 0) { if (flow_user_data->is_finished == 0) { if (flow_user_data->is_info != 0) { flow_user_data->is_info = 0; INFLUXD_STATS_GAUGE_RES(flow_state_info); } flow_user_data->is_finished = 1; INFLUXD_STATS_GAUGE_INC(flow_state_finished); } } if (TOKEN_VALUE_TO_ULL(sock, TOKEN_GET_SZ(sock, "flow_src_tot_l4_payload_len"), &total_bytes_ull[0]) == CONVERSION_OK && TOKEN_VALUE_TO_ULL(sock, TOKEN_GET_SZ(sock, "flow_dst_tot_l4_payload_len"), &total_bytes_ull[1]) == CONVERSION_OK) { influxd_statistics.counters.flow_src_total_bytes += total_bytes_ull[0] - flow_user_data->last_flow_src_l4_payload_len; influxd_statistics.counters.flow_dst_total_bytes += total_bytes_ull[1] - flow_user_data->last_flow_dst_l4_payload_len; flow_user_data->last_flow_src_l4_payload_len = total_bytes_ull[0]; flow_user_data->last_flow_dst_l4_payload_len = total_bytes_ull[1]; } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "end") != 0 || TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "idle") != 0) { influxd_unmap_flow_from_stat(flow_user_data); } } static enum nDPIsrvd_callback_return influxd_json_callback(struct nDPIsrvd_socket * const sock, struct nDPIsrvd_instance * const instance, struct nDPIsrvd_thread_data * const thread_data, struct nDPIsrvd_flow * const flow) { (void)instance; (void)thread_data; struct nDPIsrvd_json_token const * const flow_event = TOKEN_GET_SZ(sock, "flow_event_name"); struct nDPIsrvd_json_token const * const packet_event = TOKEN_GET_SZ(sock, "packet_event_name"); struct nDPIsrvd_json_token const * const daemon_event = TOKEN_GET_SZ(sock, "daemon_event_name"); struct nDPIsrvd_json_token const * const error_event = TOKEN_GET_SZ(sock, "error_event_name"); pthread_mutex_lock(&influxd_statistics.rw_lock); INFLUXD_STATS_COUNTER_INC(json_lines); influxd_statistics.counters.json_bytes += sock->buffer.json_message_length + NETWORK_BUFFER_LENGTH_DIGITS; process_flow_stats(sock, flow); if (flow_event != NULL && influxd_map_value_to_stat(sock, flow_event, flow_event_map, nDPIsrvd_ARRAY_LENGTH(flow_event_map)) != 0) { logger(1, "%s", "Unknown flow_event_name"); } if (packet_event != NULL && influxd_map_value_to_stat(sock, packet_event, packet_event_map, nDPIsrvd_ARRAY_LENGTH(packet_event_map)) != 0) { logger(1, "%s", "Unknown packet_event_name"); } if (daemon_event != NULL && influxd_map_value_to_stat(sock, daemon_event, daemon_event_map, nDPIsrvd_ARRAY_LENGTH(daemon_event_map)) != 0) { logger(1, "%s", "Unknown daemon_event_name"); } if (error_event != NULL && influxd_map_value_to_stat(sock, error_event, error_event_map, nDPIsrvd_ARRAY_LENGTH(error_event_map)) != 0) { logger(1, "%s", "Unknown error_event_name"); } pthread_mutex_unlock(&influxd_statistics.rw_lock); return CALLBACK_OK; } static int set_influxd_timer(void) { const time_t interval = influxdb_interval_ull * 1000; struct itimerspec its; its.it_value.tv_sec = interval / 1000; its.it_value.tv_nsec = (interval % 1000) * 1000000; its.it_interval.tv_nsec = 0; its.it_interval.tv_sec = 0; errno = 0; return timerfd_settime(influxd_timerfd, 0, &its, NULL); } static int create_influxd_timer(void) { influxd_timerfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK); if (influxd_timerfd < 0) { return 1; } return set_influxd_timer(); } static int mainloop(int epollfd, struct nDPIsrvd_socket * const sock) { struct epoll_event events[32]; size_t const events_size = sizeof(events) / sizeof(events[0]); while (main_thread_shutdown == 0) { int nready = epoll_wait(epollfd, events, events_size, -1); for (int i = 0; i < nready; i++) { if (events[i].events & EPOLLERR) { logger(1, "Epoll event error: %s", (errno != 0 ? strerror(errno) : "EPOLLERR")); break; } if (events[i].data.fd == influxd_timerfd) { uint64_t expirations; errno = 0; if (read(influxd_timerfd, &expirations, sizeof(expirations)) != sizeof(expirations)) { logger(1, "Could not read timer expirations: %s", strerror(errno)); return 1; } if (set_influxd_timer() != 0) { logger(1, "Could not set timer: %s", strerror(errno)); return 1; } if (test_mode == 0) { start_influxdb_thread(); } else { char stdout_buffer[BUFSIZ]; if (serialize_influx_line(stdout_buffer, sizeof(stdout_buffer)) != 0) { logger(1, "%s", "Could not serialize influx buffer"); return 1; } printf("%s", stdout_buffer); } } else if (events[i].data.fd == sock->fd) { errno = 0; enum nDPIsrvd_read_return read_ret = nDPIsrvd_read(sock); if (read_ret != READ_OK) { logger(1, "nDPIsrvd read failed with: %s", nDPIsrvd_enum_to_string(read_ret)); return 1; } enum nDPIsrvd_parse_return parse_ret = nDPIsrvd_parse_all(sock); if (parse_ret != PARSE_NEED_MORE_DATA) { logger(1, "nDPIsrvd parse failed with: %s", nDPIsrvd_enum_to_string(parse_ret)); return 1; } } } } return 0; } static int parse_options(int argc, char ** argv, struct nDPIsrvd_socket * const sock) { int opt; static char const usage[] = "Usage: %s " "[-c] [-d] [-p pidfile] [-s host] [-u user] [-g group]\n" "\t \t[-i interval] [-U URL] [-T token]\n\n" "\t-c\tLog to console instead of syslog.\n" "\t-d\tForking into background after initialization.\n" "\t-p\tWrite the daemon PID to the given file path.\n" "\t-s\tDestination where nDPIsrvd is listening on.\n" "\t-u\tChange user.\n" "\t-g\tChange group.\n" "\t-i\tInterval between pushing statistics to an influxdb endpoint.\n" "\t-t\tTest mode: Ignores `-U' / `-T' and prints stats to stdout.\n" "\t-U\tInfluxDB URL.\n" "\t \tExample: http://127.0.0.1:8086/write?db=ndpi-daemon\n" "\t-T\tInfluxDB access token.\n" "\t \tNot recommended, use environment variable INFLUXDB_AUTH_TOKEN instead.\n"; while ((opt = getopt(argc, argv, "hcdp:s:u:g:i:tU:T:")) != -1) { switch (opt) { case 'c': enable_console_logger(); break; case 'd': daemonize_enable(); break; case 'p': free(pidfile); pidfile = strdup(optarg); break; case 's': free(serv_optarg); serv_optarg = strdup(optarg); break; case 'u': free(user); user = strdup(optarg); break; case 'g': free(group); group = strdup(optarg); break; case 'i': free(influxdb_interval); influxdb_interval = strdup(optarg); break; case 't': test_mode = 1; break; case 'U': free(influxdb_url); influxdb_url = strdup(optarg); break; case 'T': free(influxdb_token); influxdb_token = strdup(optarg); break; default: fprintf(stderr, usage, argv[0]); return 1; } } if (test_mode != 0) { logger(1, "%s", "Test mode enabled: ignoring `-U' / `-T' command line parameters"); free(influxdb_url); free(influxdb_token); influxdb_url = NULL; influxdb_token = NULL; } if (serv_optarg == NULL) { serv_optarg = strdup(DISTRIBUTOR_UNIX_SOCKET); } if (influxdb_interval == NULL) { influxdb_interval = strdup("60"); } if (str_value_to_ull(influxdb_interval, &influxdb_interval_ull) != CONVERSION_OK) { logger_early(1, "InfluxDB push interval `%s' is not a valid number", influxdb_interval); return 1; } if (test_mode == 0) { if (influxdb_url == NULL) { logger_early(1, "%s", "Missing InfluxDB URL."); return 1; } if (influxdb_token == NULL && getenv("INFLUXDB_AUTH_TOKEN") != NULL) { influxdb_token = strdup(getenv("INFLUXDB_AUTH_TOKEN")); } if (influxdb_token == NULL) { logger_early(1, "%s", "Missing InfluxDB authentication token."); return 1; } } if (nDPIsrvd_setup_address(&sock->address, serv_optarg) != 0) { logger_early(1, "Could not parse address `%s'", serv_optarg); return 1; } if (optind < argc) { logger_early(1, "%s", "Unexpected argument after options"); fprintf(stderr, usage, argv[0]); return 1; } return 0; } static void sighandler(int signum) { logger(0, "Received SIGNAL %d", signum); if (main_thread_shutdown == 0) { logger(0, "%s", "Shutting down .."); main_thread_shutdown = 1; } } int main(int argc, char ** argv) { int retval = 1; int epollfd = -1; init_logging("nDPIsrvd-influxd"); struct nDPIsrvd_socket * sock = nDPIsrvd_socket_init(0, 0, 0, sizeof(struct flow_user_data), influxd_json_callback, NULL, NULL); if (sock == NULL) { logger_early(1, "%s", "nDPIsrvd socket memory allocation failed!"); goto failure; } if (parse_options(argc, argv, sock) != 0) { goto failure; } if (test_mode == 0) { logger(0, "Recv buffer size: %u", NETWORK_BUFFER_MAX_SIZE); logger(0, "Connecting to `%s'..", serv_optarg); logger(0, "InfluxDB push URL: %s", influxdb_url); } if (setvbuf(stdout, NULL, _IONBF, 0) != 0) { logger(1, "Could not set stdout unbuffered: %s. Collectd may receive too old PUTVALs and complain.", strerror(errno)); } if (nDPIsrvd_connect(sock) != CONNECT_OK) { logger(1, "nDPIsrvd socket connect to %s failed!", serv_optarg); goto failure; } if (nDPIsrvd_set_nonblock(sock) != 0) { logger(1, "nDPIsrvd set nonblock failed: %s", strerror(errno)); goto failure; } signal(SIGINT, sighandler); signal(SIGTERM, sighandler); signal(SIGPIPE, SIG_IGN); if (daemonize_with_pidfile(pidfile) != 0) { goto failure; } errno = 0; if (user != NULL && change_user_group(user, group, pidfile) != 0) { if (errno != 0) { logger(1, "Change user/group failed: %s", strerror(errno)); } else { logger(1, "%s", "Change user/group failed."); } goto failure; } epollfd = epoll_create1(0); if (epollfd < 0) { logger(1, "Error creating epoll: %s", strerror(errno)); goto failure; } if (create_influxd_timer() != 0) { logger(1, "Error creating timer: %s", strerror(errno)); goto failure; } { struct epoll_event timer_event = {.data.fd = influxd_timerfd, .events = EPOLLIN}; if (epoll_ctl(epollfd, EPOLL_CTL_ADD, influxd_timerfd, &timer_event) < 0) { logger(1, "Error adding JSON fd to epoll: %s", strerror(errno)); goto failure; } } { struct epoll_event socket_event = {.data.fd = sock->fd, .events = EPOLLIN}; if (epoll_ctl(epollfd, EPOLL_CTL_ADD, sock->fd, &socket_event) < 0) { logger(1, "Error adding nDPIsrvd socket fd to epoll: %s", strerror(errno)); goto failure; } } if (test_mode == 0) { curl_global_init(CURL_GLOBAL_ALL); } logger(0, "%s", "Initialization succeeded."); retval = mainloop(epollfd, sock); logger(0, "%s", "Bye."); if (test_mode == 0) { curl_global_cleanup(); } else { char stdout_buffer[BUFSIZ]; if (serialize_influx_line(stdout_buffer, sizeof(stdout_buffer)) != 0) { logger(1, "%s", "Could not serialize influx buffer"); return 1; } printf("%s", stdout_buffer); } failure: nDPIsrvd_socket_free(&sock); close(influxd_timerfd); close(epollfd); daemonize_shutdown(pidfile); shutdown_logging(); return retval; }