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nDPId/examples/c-collectd/c-collectd.c
Toni Uhlig 876aef98e1 Improved collectd example. 
* similiar behavior to influxd example
 * gauges and counters are now handled properly

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
2024-01-05 11:26:53 +01:00

1585 lines
66 KiB
C
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#include <arpa/inet.h> // ndpi_typedefs.h
#include <errno.h>
#include <signal.h>
#include <stdbool.h> // ndpi_typedefs.h
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/epoll.h>
#include <sys/timerfd.h>
#include <unistd.h>
#include <ndpi_typedefs.h>
#include "nDPIsrvd.h"
#include "utils.h"
#define DEFAULT_COLLECTD_EXEC_INST "nDPIsrvd"
#define MAX_RISKS_PER_FLOW 8
#define MAX_SEVERITIES_PER_FLOW 4
#define LOGGER_EARLY(is_error, fmt, ...) \
do \
{ \
if (enable_console_logging != 0) \
{ \
logger_early(is_error, fmt, __VA_ARGS__); \
} \
else \
{ \
logger(is_error, fmt, __VA_ARGS__); \
} \
} while (0)
//#define GENERATE_TIMESTAMP 1
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;
};
static int main_thread_shutdown = 0;
static int collectd_timerfd = -1;
static pid_t collectd_pid;
static int enable_console_logging = 0;
static char * serv_optarg = NULL;
static char * collectd_hostname = NULL;
static char * collectd_interval = NULL;
static char * instance_name = NULL;
static nDPIsrvd_ull collectd_interval_ull = 0uL;
static struct
{
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_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_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];
nDPIsrvd_ull flow_risk_unknown_count;
} gauges[2];
} collectd_statistics = {};
struct global_map
{
char const * const json_key;
struct
{
uint64_t * const global_stat_inc;
uint64_t * const global_stat_dec;
};
};
#define COLLECTD_STATS_COUNTER_PTR(member) \
{ \
.global_stat_inc = &(collectd_statistics.counters.member), NULL \
}
#define COLLECTD_STATS_GAUGE_PTR(member) \
{ \
.global_stat_inc = &(collectd_statistics.gauges[0].member), \
.global_stat_dec = &(collectd_statistics.gauges[1].member) \
}
#define COLLECTD_STATS_COUNTER_INC(member) (collectd_statistics.counters.member++)
#define COLLECTD_STATS_GAUGE_RES(member) (collectd_statistics.gauges[0].member--)
#define COLLECTD_STATS_GAUGE_INC(member) (collectd_statistics.gauges[0].member++)
#define COLLECTD_STATS_GAUGE_DEC(member) (collectd_statistics.gauges[1].member++)
#define COLLECTD_STATS_GAUGE_SUB(member) (collectd_statistics.gauges[0].member -= collectd_statistics.gauges[1].member)
#define COLLECTD_STATS_MAP_NOTNULL(map, index) (map[index - 1].global_stat_dec != NULL)
#define COLLECTD_STATS_MAP_DEC(map, index) ((*map[index - 1].global_stat_dec)++)
static struct global_map const flow_event_map[] = {{"new", COLLECTD_STATS_COUNTER_PTR(flow_new_count)},
{"end", COLLECTD_STATS_COUNTER_PTR(flow_end_count)},
{"idle", COLLECTD_STATS_COUNTER_PTR(flow_idle_count)},
{"update", COLLECTD_STATS_COUNTER_PTR(flow_update_count)},
{"analyse", COLLECTD_STATS_COUNTER_PTR(flow_analyse_count)},
{"guessed", COLLECTD_STATS_COUNTER_PTR(flow_guessed_count)},
{"detected", COLLECTD_STATS_COUNTER_PTR(flow_detected_count)},
{"detection-update",
COLLECTD_STATS_COUNTER_PTR(flow_detection_update_count)},
{"not-detected",
COLLECTD_STATS_COUNTER_PTR(flow_not_detected_count)}};
static struct global_map const packet_event_map[] = {{"packet", COLLECTD_STATS_COUNTER_PTR(packet_count)},
{"packet-flow", COLLECTD_STATS_COUNTER_PTR(packet_flow_count)}};
static struct global_map const daemon_event_map[] = {{"init", COLLECTD_STATS_COUNTER_PTR(init_count)},
{"reconnect", COLLECTD_STATS_COUNTER_PTR(reconnect_count)},
{"shutdown", COLLECTD_STATS_COUNTER_PTR(shutdown_count)},
{"status", COLLECTD_STATS_COUNTER_PTR(status_count)}};
static struct global_map const error_event_map[] = {
{"Unknown datalink layer packet", COLLECTD_STATS_COUNTER_PTR(error_unknown_datalink)},
{"Unknown L3 protocol", COLLECTD_STATS_COUNTER_PTR(error_unknown_l3_protocol)},
{"Unsupported datalink layer", COLLECTD_STATS_COUNTER_PTR(error_unsupported_datalink)},
{"Packet too short", COLLECTD_STATS_COUNTER_PTR(error_packet_too_short)},
{"Unknown packet type", COLLECTD_STATS_COUNTER_PTR(error_packet_type_unknown)},
{"Packet header invalid", COLLECTD_STATS_COUNTER_PTR(error_packet_header_invalid)},
{"IP4 packet too short", COLLECTD_STATS_COUNTER_PTR(error_ip4_packet_too_short)},
{"Packet smaller than IP4 header", COLLECTD_STATS_COUNTER_PTR(error_ip4_size_smaller_than_header)},
{"nDPI IPv4\\/L4 payload detection failed", COLLECTD_STATS_COUNTER_PTR(error_ip4_l4_payload_detection)},
{"IP6 packet too short", COLLECTD_STATS_COUNTER_PTR(error_ip6_packet_too_short)},
{"Packet smaller than IP6 header", COLLECTD_STATS_COUNTER_PTR(error_ip6_size_smaller_than_header)},
{"nDPI IPv6\\/L4 payload detection failed", COLLECTD_STATS_COUNTER_PTR(error_ip6_l4_payload_detection)},
{"TCP packet smaller than expected", COLLECTD_STATS_COUNTER_PTR(error_tcp_packet_too_short)},
{"UDP packet smaller than expected", COLLECTD_STATS_COUNTER_PTR(error_udp_packet_too_short)},
{"Captured packet size is smaller than expected packet size",
COLLECTD_STATS_COUNTER_PTR(error_capture_size_smaller_than_packet)},
{"Max flows to track reached", COLLECTD_STATS_COUNTER_PTR(error_max_flows_to_track)},
{"Flow memory allocation failed", COLLECTD_STATS_COUNTER_PTR(error_flow_memory_alloc)}};
static struct global_map const breeds_map[] = {{"Safe", COLLECTD_STATS_GAUGE_PTR(flow_breed_safe_count)},
{"Acceptable", COLLECTD_STATS_GAUGE_PTR(flow_breed_acceptable_count)},
{"Fun", COLLECTD_STATS_GAUGE_PTR(flow_breed_fun_count)},
{"Unsafe", COLLECTD_STATS_GAUGE_PTR(flow_breed_unsafe_count)},
{"Potentially Dangerous",
COLLECTD_STATS_GAUGE_PTR(flow_breed_potentially_dangerous_count)},
{"Tracker\\/Ads",
COLLECTD_STATS_GAUGE_PTR(flow_breed_tracker_ads_count)},
{"Dangerous", COLLECTD_STATS_GAUGE_PTR(flow_breed_dangerous_count)},
{"Unrated", COLLECTD_STATS_GAUGE_PTR(flow_breed_unrated_count)},
{NULL, COLLECTD_STATS_GAUGE_PTR(flow_breed_unknown_count)}};
static struct global_map const categories_map[] = {
{"Unspecified", COLLECTD_STATS_GAUGE_PTR(flow_category_unspecified_count)},
{"Media", COLLECTD_STATS_GAUGE_PTR(flow_category_media_count)},
{"VPN", COLLECTD_STATS_GAUGE_PTR(flow_category_vpn_count)},
{"Email", COLLECTD_STATS_GAUGE_PTR(flow_category_email_count)},
{"DataTransfer", COLLECTD_STATS_GAUGE_PTR(flow_category_data_transfer_count)},
{"Web", COLLECTD_STATS_GAUGE_PTR(flow_category_web_count)},
{"SocialNetwork", COLLECTD_STATS_GAUGE_PTR(flow_category_social_network_count)},
{"Download", COLLECTD_STATS_GAUGE_PTR(flow_category_download_count)},
{"Game", COLLECTD_STATS_GAUGE_PTR(flow_category_game_count)},
{"Chat", COLLECTD_STATS_GAUGE_PTR(flow_category_chat_count)},
{"VoIP", COLLECTD_STATS_GAUGE_PTR(flow_category_voip_count)},
{"Database", COLLECTD_STATS_GAUGE_PTR(flow_category_database_count)},
{"RemoteAccess", COLLECTD_STATS_GAUGE_PTR(flow_category_remote_access_count)},
{"Cloud", COLLECTD_STATS_GAUGE_PTR(flow_category_cloud_count)},
{"Network", COLLECTD_STATS_GAUGE_PTR(flow_category_network_count)},
{"Collaborative", COLLECTD_STATS_GAUGE_PTR(flow_category_collaborative_count)},
{"RPC", COLLECTD_STATS_GAUGE_PTR(flow_category_rpc_count)},
{"Streaming", COLLECTD_STATS_GAUGE_PTR(flow_category_streaming_count)},
{"System", COLLECTD_STATS_GAUGE_PTR(flow_category_system_count)},
{"SoftwareUpdate", COLLECTD_STATS_GAUGE_PTR(flow_category_software_update_count)},
{"Music", COLLECTD_STATS_GAUGE_PTR(flow_category_music_count)},
{"Video", COLLECTD_STATS_GAUGE_PTR(flow_category_video_count)},
{"Shopping", COLLECTD_STATS_GAUGE_PTR(flow_category_shopping_count)},
{"Productivity", COLLECTD_STATS_GAUGE_PTR(flow_category_productivity_count)},
{"FileSharing", COLLECTD_STATS_GAUGE_PTR(flow_category_file_sharing_count)},
{"ConnCheck", COLLECTD_STATS_GAUGE_PTR(flow_category_conn_check_count)},
{"IoT-Scada", COLLECTD_STATS_GAUGE_PTR(flow_category_iot_scada_count)},
{"VirtAssistant", COLLECTD_STATS_GAUGE_PTR(flow_category_virt_assistant_count)},
{"Cybersecurity", COLLECTD_STATS_GAUGE_PTR(flow_category_cybersecurity_count)},
{"AdultContent", COLLECTD_STATS_GAUGE_PTR(flow_category_adult_content_count)},
{"Mining", COLLECTD_STATS_GAUGE_PTR(flow_category_mining_count)},
{"Malware", COLLECTD_STATS_GAUGE_PTR(flow_category_malware_count)},
{"Advertisement", COLLECTD_STATS_GAUGE_PTR(flow_category_advertisment_count)},
{"Banned_Site", COLLECTD_STATS_GAUGE_PTR(flow_category_banned_site_count)},
{"Site_Unavailable", COLLECTD_STATS_GAUGE_PTR(flow_category_site_unavail_count)},
{"Allowed_Site", COLLECTD_STATS_GAUGE_PTR(flow_category_allowed_site_count)},
{"Antimalware", COLLECTD_STATS_GAUGE_PTR(flow_category_antimalware_count)},
{"Crypto_Currency", COLLECTD_STATS_GAUGE_PTR(flow_category_crypto_currency_count)},
{"Gambling", COLLECTD_STATS_GAUGE_PTR(flow_category_gambling_count)},
{NULL, COLLECTD_STATS_GAUGE_PTR(flow_category_unknown_count)}};
static struct global_map const confidence_map[] = {
{"Match by port", COLLECTD_STATS_GAUGE_PTR(flow_confidence_by_port)},
{"DPI (partial)", COLLECTD_STATS_GAUGE_PTR(flow_confidence_dpi_partial)},
{"DPI (partial cache)", COLLECTD_STATS_GAUGE_PTR(flow_confidence_dpi_partial_cache)},
{"DPI (cache)", COLLECTD_STATS_GAUGE_PTR(flow_confidence_dpi_cache)},
{"DPI", COLLECTD_STATS_GAUGE_PTR(flow_confidence_dpi)},
{"nBPF", COLLECTD_STATS_GAUGE_PTR(flow_confidence_nbpf)},
{"Match by IP", COLLECTD_STATS_GAUGE_PTR(flow_confidence_by_ip)},
{"DPI (aggressive)", COLLECTD_STATS_GAUGE_PTR(flow_confidence_dpi_aggressive)},
{NULL, COLLECTD_STATS_GAUGE_PTR(flow_confidence_unknown)}};
static struct global_map const severity_map[] = {{"Low", COLLECTD_STATS_GAUGE_PTR(flow_severity_low)},
{"Medium", COLLECTD_STATS_GAUGE_PTR(flow_severity_medium)},
{"High", COLLECTD_STATS_GAUGE_PTR(flow_severity_high)},
{"Severe", COLLECTD_STATS_GAUGE_PTR(flow_severity_severe)},
{"Critical", COLLECTD_STATS_GAUGE_PTR(flow_severity_critical)},
{"Emergency", COLLECTD_STATS_GAUGE_PTR(flow_severity_emergency)},
{NULL, COLLECTD_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);
fprintf(stderr, "%s", "nDPIsrvd MemoryProfiler: ");
vfprintf(stderr, format, ap);
fprintf(stderr, "%s\n", "");
va_end(ap);
}
#endif
static int set_collectd_timer(void)
{
const time_t interval = collectd_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(collectd_timerfd, 0, &its, NULL);
}
static int create_collectd_timer(void)
{
collectd_timerfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK);
if (collectd_timerfd < 0)
{
return 1;
}
return set_collectd_timer();
}
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;
}
}
static int parse_options(int argc, char ** argv, struct nDPIsrvd_socket * const sock)
{
int opt;
static char const usage[] =
"Usage: %s "
"[-l] [-s host] [-c hostname] [-n collectd-instance-name] [-i interval] [-q]\n\n"
"\t-l\tLog to console instead of syslog.\n"
"\t-s\tDestination where nDPIsrvd is listening on.\n"
"\t-c\tCollectd hostname.\n"
"\t \tThis value defaults to the environment variable COLLECTD_HOSTNAME.\n"
"\t-n\tName of the collectd(-exec) instance.\n"
"\t \tDefaults to: " DEFAULT_COLLECTD_EXEC_INST
"\n"
"\t-i\tInterval between print statistics to stdout.\n"
"\t \tThis value defaults to the environment variable COLLECTD_INTERVAL.\n";
while ((opt = getopt(argc, argv, "hls:c:n:i:")) != -1)
{
switch (opt)
{
case 'l':
enable_console_logging = 1;
break;
case 's':
free(serv_optarg);
serv_optarg = strdup(optarg);
break;
case 'c':
free(collectd_hostname);
collectd_hostname = strdup(optarg);
break;
case 'n':
free(instance_name);
instance_name = strdup(optarg);
break;
case 'i':
free(collectd_interval);
collectd_interval = strdup(optarg);
break;
default:
fprintf(stderr, usage, argv[0]);
return 1;
}
}
if (serv_optarg == NULL)
{
serv_optarg = strdup(DISTRIBUTOR_UNIX_SOCKET);
}
if (collectd_hostname == NULL)
{
collectd_hostname = getenv("COLLECTD_HOSTNAME");
if (collectd_hostname == NULL)
{
collectd_hostname = strdup("localhost");
}
else
{
enable_console_logging = 0;
}
}
if (instance_name == NULL)
{
instance_name = strdup(DEFAULT_COLLECTD_EXEC_INST);
}
if (collectd_interval == NULL)
{
collectd_interval = getenv("COLLECTD_INTERVAL");
if (collectd_interval == NULL)
{
collectd_interval = strdup("60");
}
else
{
enable_console_logging = 0;
}
}
if (enable_console_logging != 0)
{
enable_console_logger();
}
if (str_value_to_ull(collectd_interval, &collectd_interval_ull) != CONVERSION_OK)
{
LOGGER_EARLY(1, "Collectd interval `%s' is not a valid number", collectd_interval);
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");
LOGGER_EARLY(1, "%s", "");
LOGGER_EARLY(1, usage, argv[0]);
return 1;
}
return 0;
}
#ifdef GENERATE_TIMESTAMP
#define COLLECTD_COUNTER_PREFIX "PUTVAL \"%s/exec-%s/counter-"
#define COLLECTD_COUNTER_SUFFIX "\" interval=%llu %llu:%llu\n"
#define COLLECTD_COUNTER_N(value) \
collectd_hostname, instance_name, #value, collectd_interval_ull, (unsigned long long int)now, \
(unsigned long long int)collectd_statistics.value
#define COLLECTD_COUNTER_N2(name, value) \
collectd_hostname, instance_name, name, collectd_interval_ull, (unsigned long long int)now, \
(unsigned long long int)collectd_statistics.value
#define COLLECTD_GAUGE_PREFIX "PUTVAL \"%s/exec-%s/gauge-"
#define COLLECTD_GAUGE_SUFFIX "\" interval=%llu %llu:%llu\n"
#define COLLECTD_GAUGE_N(value) \
collectd_hostname, instance_name, #value, collectd_interval_ull, (unsigned long long int)now, \
(unsigned long long int)collectd_statistics.value
#define COLLECTD_GAUGE_N2(name, value) \
collectd_hostname, instance_name, name, collectd_interval_ull, (unsigned long long int)now, \
(unsigned long long int)collectd_statistics.value
#else
#define COLLECTD_COUNTER_PREFIX "PUTVAL \"%s/exec-%s/counter-"
#define COLLECTD_COUNTER_SUFFIX "\" interval=%llu N:%llu\n"
#define COLLECTD_COUNTER_N(value) \
collectd_hostname, instance_name, #value, collectd_interval_ull, \
(unsigned long long int)collectd_statistics.counters.value
#define COLLECTD_COUNTER_N2(name, value) \
collectd_hostname, instance_name, name, collectd_interval_ull, \
(unsigned long long int)collectd_statistics.counters.value
#define COLLECTD_GAUGE_PREFIX "PUTVAL \"%s/exec-%s/gauge-"
#define COLLECTD_GAUGE_SUFFIX "\" interval=%llu N:%llu\n"
#define COLLECTD_GAUGE_N(value) \
collectd_hostname, instance_name, #value, collectd_interval_ull, \
(unsigned long long int)collectd_statistics.gauges[0].value
#define COLLECTD_GAUGE_N2(name, value) \
collectd_hostname, instance_name, name, collectd_interval_ull, \
(unsigned long long int)collectd_statistics.gauges[0].value
#endif
#define COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_PREFIX "%s" COLLECTD_COUNTER_SUFFIX
#define COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_PREFIX "%s" COLLECTD_GAUGE_SUFFIX
static void print_collectd_exec_output(void)
{
size_t i;
#ifdef GENERATE_TIMESTAMP
time_t now = time(NULL);
#endif
printf(COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT() COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT()
COLLECTD_COUNTER_N_FORMAT(),
COLLECTD_COUNTER_N(json_lines),
COLLECTD_COUNTER_N(json_bytes),
COLLECTD_COUNTER_N(flow_new_count),
COLLECTD_COUNTER_N(flow_end_count),
COLLECTD_COUNTER_N(flow_idle_count),
COLLECTD_COUNTER_N(flow_update_count),
COLLECTD_COUNTER_N(flow_analyse_count),
COLLECTD_COUNTER_N(flow_guessed_count),
COLLECTD_COUNTER_N(flow_detected_count),
COLLECTD_COUNTER_N(flow_detection_update_count),
COLLECTD_COUNTER_N(flow_not_detected_count),
COLLECTD_COUNTER_N(flow_src_total_bytes),
COLLECTD_COUNTER_N(flow_dst_total_bytes),
COLLECTD_COUNTER_N(flow_risky_count),
COLLECTD_COUNTER_N(packet_count),
COLLECTD_COUNTER_N(packet_flow_count),
COLLECTD_COUNTER_N(init_count),
COLLECTD_COUNTER_N(reconnect_count),
COLLECTD_COUNTER_N(shutdown_count),
COLLECTD_COUNTER_N(status_count),
COLLECTD_COUNTER_N(error_unknown_datalink),
COLLECTD_COUNTER_N(error_unknown_l3_protocol),
COLLECTD_COUNTER_N(error_unsupported_datalink),
COLLECTD_COUNTER_N(error_packet_too_short),
COLLECTD_COUNTER_N(error_packet_type_unknown),
COLLECTD_COUNTER_N(error_packet_header_invalid),
COLLECTD_COUNTER_N(error_ip4_packet_too_short),
COLLECTD_COUNTER_N(error_ip4_size_smaller_than_header),
COLLECTD_COUNTER_N(error_ip4_l4_payload_detection),
COLLECTD_COUNTER_N(error_ip6_packet_too_short),
COLLECTD_COUNTER_N(error_ip6_size_smaller_than_header),
COLLECTD_COUNTER_N(error_ip6_l4_payload_detection),
COLLECTD_COUNTER_N(error_tcp_packet_too_short),
COLLECTD_COUNTER_N(error_udp_packet_too_short),
COLLECTD_COUNTER_N(error_capture_size_smaller_than_packet),
COLLECTD_COUNTER_N(error_max_flows_to_track),
COLLECTD_COUNTER_N(error_flow_memory_alloc));
printf(COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT(),
COLLECTD_GAUGE_N(flow_breed_safe_count),
COLLECTD_GAUGE_N(flow_breed_acceptable_count),
COLLECTD_GAUGE_N(flow_breed_fun_count),
COLLECTD_GAUGE_N(flow_breed_unsafe_count),
COLLECTD_GAUGE_N(flow_breed_potentially_dangerous_count),
COLLECTD_GAUGE_N(flow_breed_tracker_ads_count),
COLLECTD_GAUGE_N(flow_breed_dangerous_count),
COLLECTD_GAUGE_N(flow_breed_unrated_count),
COLLECTD_GAUGE_N(flow_breed_unknown_count));
printf(COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT(),
COLLECTD_GAUGE_N(flow_category_unspecified_count),
COLLECTD_GAUGE_N(flow_category_media_count),
COLLECTD_GAUGE_N(flow_category_vpn_count),
COLLECTD_GAUGE_N(flow_category_email_count),
COLLECTD_GAUGE_N(flow_category_data_transfer_count),
COLLECTD_GAUGE_N(flow_category_web_count),
COLLECTD_GAUGE_N(flow_category_social_network_count),
COLLECTD_GAUGE_N(flow_category_download_count),
COLLECTD_GAUGE_N(flow_category_game_count),
COLLECTD_GAUGE_N(flow_category_chat_count),
COLLECTD_GAUGE_N(flow_category_voip_count),
COLLECTD_GAUGE_N(flow_category_database_count),
COLLECTD_GAUGE_N(flow_category_remote_access_count),
COLLECTD_GAUGE_N(flow_category_cloud_count),
COLLECTD_GAUGE_N(flow_category_network_count),
COLLECTD_GAUGE_N(flow_category_collaborative_count),
COLLECTD_GAUGE_N(flow_category_rpc_count),
COLLECTD_GAUGE_N(flow_category_streaming_count),
COLLECTD_GAUGE_N(flow_category_system_count),
COLLECTD_GAUGE_N(flow_category_software_update_count),
COLLECTD_GAUGE_N(flow_category_music_count),
COLLECTD_GAUGE_N(flow_category_video_count),
COLLECTD_GAUGE_N(flow_category_shopping_count),
COLLECTD_GAUGE_N(flow_category_productivity_count),
COLLECTD_GAUGE_N(flow_category_file_sharing_count),
COLLECTD_GAUGE_N(flow_category_conn_check_count),
COLLECTD_GAUGE_N(flow_category_iot_scada_count),
COLLECTD_GAUGE_N(flow_category_virt_assistant_count),
COLLECTD_GAUGE_N(flow_category_cybersecurity_count),
COLLECTD_GAUGE_N(flow_category_adult_content_count),
COLLECTD_GAUGE_N(flow_category_mining_count),
COLLECTD_GAUGE_N(flow_category_malware_count),
COLLECTD_GAUGE_N(flow_category_advertisment_count),
COLLECTD_GAUGE_N(flow_category_banned_site_count),
COLLECTD_GAUGE_N(flow_category_site_unavail_count),
COLLECTD_GAUGE_N(flow_category_allowed_site_count),
COLLECTD_GAUGE_N(flow_category_antimalware_count),
COLLECTD_GAUGE_N(flow_category_crypto_currency_count),
COLLECTD_GAUGE_N(flow_category_gambling_count),
COLLECTD_GAUGE_N(flow_category_unknown_count));
printf(COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT(),
COLLECTD_GAUGE_N(flow_confidence_by_port),
COLLECTD_GAUGE_N(flow_confidence_dpi_partial),
COLLECTD_GAUGE_N(flow_confidence_dpi_partial_cache),
COLLECTD_GAUGE_N(flow_confidence_dpi_cache),
COLLECTD_GAUGE_N(flow_confidence_dpi),
COLLECTD_GAUGE_N(flow_confidence_nbpf),
COLLECTD_GAUGE_N(flow_confidence_by_ip),
COLLECTD_GAUGE_N(flow_confidence_dpi_aggressive),
COLLECTD_GAUGE_N(flow_confidence_unknown));
printf(COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT(),
COLLECTD_GAUGE_N(flow_severity_low),
COLLECTD_GAUGE_N(flow_severity_medium),
COLLECTD_GAUGE_N(flow_severity_high),
COLLECTD_GAUGE_N(flow_severity_severe),
COLLECTD_GAUGE_N(flow_severity_critical),
COLLECTD_GAUGE_N(flow_severity_emergency),
COLLECTD_GAUGE_N(flow_severity_unknown));
printf(COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT()
COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT(),
COLLECTD_GAUGE_N(flow_l3_ip4_count),
COLLECTD_GAUGE_N(flow_l3_ip6_count),
COLLECTD_GAUGE_N(flow_l3_other_count),
COLLECTD_GAUGE_N(flow_l4_tcp_count),
COLLECTD_GAUGE_N(flow_l4_udp_count),
COLLECTD_GAUGE_N(flow_l4_icmp_count),
COLLECTD_GAUGE_N(flow_l4_other_count),
COLLECTD_GAUGE_N(flow_risk_unknown_count));
printf(COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT() COLLECTD_GAUGE_N_FORMAT(),
COLLECTD_GAUGE_N(flow_active_count),
COLLECTD_GAUGE_N(flow_detected_count),
COLLECTD_GAUGE_N(flow_guessed_count),
COLLECTD_GAUGE_N(flow_not_detected_count));
for (i = 0; i < NDPI_MAX_RISK - 1; ++i)
{
char gauge_name[BUFSIZ];
snprintf(gauge_name, sizeof(gauge_name), "flow_risk_%zu_count", i + 1);
printf(COLLECTD_GAUGE_N_FORMAT(), COLLECTD_GAUGE_N2(gauge_name, flow_risk_count[i]));
}
COLLECTD_STATS_GAUGE_SUB(flow_state_info);
COLLECTD_STATS_GAUGE_SUB(flow_state_finished);
COLLECTD_STATS_GAUGE_SUB(flow_breed_safe_count);
COLLECTD_STATS_GAUGE_SUB(flow_breed_acceptable_count);
COLLECTD_STATS_GAUGE_SUB(flow_breed_fun_count);
COLLECTD_STATS_GAUGE_SUB(flow_breed_unsafe_count);
COLLECTD_STATS_GAUGE_SUB(flow_breed_potentially_dangerous_count);
COLLECTD_STATS_GAUGE_SUB(flow_breed_tracker_ads_count);
COLLECTD_STATS_GAUGE_SUB(flow_breed_dangerous_count);
COLLECTD_STATS_GAUGE_SUB(flow_breed_unrated_count);
COLLECTD_STATS_GAUGE_SUB(flow_breed_unknown_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_unspecified_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_media_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_vpn_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_email_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_data_transfer_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_web_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_social_network_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_download_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_game_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_chat_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_voip_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_database_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_remote_access_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_cloud_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_network_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_collaborative_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_rpc_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_streaming_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_system_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_software_update_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_music_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_video_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_shopping_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_productivity_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_file_sharing_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_conn_check_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_iot_scada_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_virt_assistant_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_cybersecurity_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_adult_content_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_mining_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_malware_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_advertisment_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_banned_site_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_site_unavail_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_allowed_site_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_antimalware_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_crypto_currency_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_gambling_count);
COLLECTD_STATS_GAUGE_SUB(flow_category_unknown_count);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_by_port);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_dpi_partial);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_dpi_partial_cache);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_dpi_cache);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_dpi);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_nbpf);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_by_ip);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_dpi_aggressive);
COLLECTD_STATS_GAUGE_SUB(flow_confidence_unknown);
COLLECTD_STATS_GAUGE_SUB(flow_severity_low);
COLLECTD_STATS_GAUGE_SUB(flow_severity_medium);
COLLECTD_STATS_GAUGE_SUB(flow_severity_high);
COLLECTD_STATS_GAUGE_SUB(flow_severity_severe);
COLLECTD_STATS_GAUGE_SUB(flow_severity_critical);
COLLECTD_STATS_GAUGE_SUB(flow_severity_emergency);
COLLECTD_STATS_GAUGE_SUB(flow_severity_unknown);
COLLECTD_STATS_GAUGE_SUB(flow_l3_ip4_count);
COLLECTD_STATS_GAUGE_SUB(flow_l3_ip6_count);
COLLECTD_STATS_GAUGE_SUB(flow_l3_other_count);
COLLECTD_STATS_GAUGE_SUB(flow_l4_tcp_count);
COLLECTD_STATS_GAUGE_SUB(flow_l4_udp_count);
COLLECTD_STATS_GAUGE_SUB(flow_l4_icmp_count);
COLLECTD_STATS_GAUGE_SUB(flow_l4_other_count);
COLLECTD_STATS_GAUGE_SUB(flow_active_count);
COLLECTD_STATS_GAUGE_SUB(flow_detected_count);
COLLECTD_STATS_GAUGE_SUB(flow_guessed_count);
COLLECTD_STATS_GAUGE_SUB(flow_not_detected_count);
for (size_t i = 0; i < NDPI_MAX_RISK - 1; ++i)
{
COLLECTD_STATS_GAUGE_SUB(flow_risk_count[i]);
}
COLLECTD_STATS_GAUGE_SUB(flow_risk_unknown_count);
memset(&collectd_statistics.gauges[1], 0, sizeof(collectd_statistics.gauges[1]));
}
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 == collectd_timerfd)
{
uint64_t expirations;
/*
* Check if collectd parent process is still running.
* May happen if collectd was killed with singals e.g. SIGKILL.
*/
if (getppid() != collectd_pid)
{
logger(1, "Parent process %d exited. Nothing left to do here, bye.", collectd_pid);
return 1;
}
errno = 0;
if (read(collectd_timerfd, &expirations, sizeof(expirations)) != sizeof(expirations))
{
logger(1, "Could not read timer expirations: %s", strerror(errno));
return 1;
}
if (set_collectd_timer() != 0)
{
logger(1, "Could not set timer: %s", strerror(errno));
return 1;
}
print_collectd_exec_output();
}
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 collectd_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, 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 collectd_map_value_to_stat(struct nDPIsrvd_socket * 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 collectd_map_to_stat(value_str, value_length, map, map_length);
}
static void collectd_unmap_flow_from_stat(struct flow_user_data * const flow_user_data)
{
if (flow_user_data->is_ip4 != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_l3_ip4_count);
}
if (flow_user_data->is_ip6 != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_l3_ip6_count);
}
if (flow_user_data->is_other_l3 != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_l3_other_count);
}
if (flow_user_data->is_tcp != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_l4_tcp_count);
}
if (flow_user_data->is_udp != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_l4_udp_count);
}
if (flow_user_data->is_icmp != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_l4_icmp_count);
}
if (flow_user_data->is_other_l4 != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_l4_other_count);
}
if (flow_user_data->new_seen != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_active_count);
}
if (flow_user_data->is_detected != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_detected_count);
}
if (flow_user_data->is_guessed != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_guessed_count);
}
if (flow_user_data->is_not_detected != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_not_detected_count);
}
if (flow_user_data->is_info != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_state_info);
}
if (flow_user_data->is_finished != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_state_finished);
}
if (flow_user_data->breed > 0 && flow_user_data->breed_ndpid_invalid == 0 &&
COLLECTD_STATS_MAP_NOTNULL(breeds_map, flow_user_data->breed) != 0)
{
COLLECTD_STATS_MAP_DEC(breeds_map, flow_user_data->breed);
}
if (flow_user_data->category > 0 && flow_user_data->category_ndpid_invalid == 0 &&
COLLECTD_STATS_MAP_NOTNULL(categories_map, flow_user_data->category) != 0)
{
COLLECTD_STATS_MAP_DEC(categories_map, flow_user_data->category);
}
if (flow_user_data->confidence > 0 && flow_user_data->confidence_ndpid_invalid == 0 &&
COLLECTD_STATS_MAP_NOTNULL(confidence_map, flow_user_data->confidence) != 0)
{
COLLECTD_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)
{
COLLECTD_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)
{
COLLECTD_STATS_GAUGE_DEC(flow_risk_count[flow_user_data->risks[i]]);
}
}
if (flow_user_data->risk_ndpid_invalid != 0)
{
COLLECTD_STATS_GAUGE_DEC(flow_risk_unknown_count);
}
}
static ssize_t collectd_map_index(char const * const json_key,
size_t key_length,
struct global_map const * const map,
size_t map_length)
{
if (json_key == NULL || key_length == 0)
{
return -1;
}
for (size_t i = 0; i < map_length; ++i)
{
if (map[i].json_key == NULL)
{
continue;
}
if (key_length == strlen(map[i].json_key) && strncmp(json_key, map[i].json_key, key_length) == 0)
{
return i;
}
}
return -1;
}
static int collectd_map_flow_u8(struct nDPIsrvd_socket * 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 = collectd_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;
COLLECTD_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;
COLLECTD_STATS_GAUGE_INC(flow_l3_ip4_count);
}
else if (TOKEN_VALUE_EQUALS_SZ(sock, l3_proto, "ip6") != 0)
{
flow_user_data->is_ip6 = 1;
COLLECTD_STATS_GAUGE_INC(flow_l3_ip6_count);
}
else if (l3_proto != NULL)
{
flow_user_data->is_other_l3 = 1;
COLLECTD_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;
COLLECTD_STATS_GAUGE_INC(flow_l4_tcp_count);
}
else if (TOKEN_VALUE_EQUALS_SZ(sock, l4_proto, "udp") != 0)
{
flow_user_data->is_udp = 1;
COLLECTD_STATS_GAUGE_INC(flow_l4_udp_count);
}
else if (TOKEN_VALUE_EQUALS_SZ(sock, l4_proto, "icmp") != 0)
{
flow_user_data->is_icmp = 1;
COLLECTD_STATS_GAUGE_INC(flow_l4_icmp_count);
}
else if (l4_proto != NULL)
{
flow_user_data->is_other_l4 = 1;
COLLECTD_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;
COLLECTD_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;
COLLECTD_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;
COLLECTD_STATS_GAUGE_INC(flow_detected_count);
}
if (flow_risk != NULL)
{
if (flow_user_data->risks[0] == 0)
{
COLLECTD_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 = (nDPIsrvd_ull)-1;
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 (collectd_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 (collectd_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)
{
break;
}
COLLECTD_STATS_GAUGE_INC(flow_risk_count[numeric_risk_value]);
flow_user_data->risks[i] = numeric_risk_value;
break;
}
}
else if (flow_user_data->risk_ndpid_invalid == 0)
{
flow_user_data->risk_ndpid_invalid = 1;
COLLECTD_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 (collectd_map_flow_u8(
sock, breed, breeds_map, nDPIsrvd_ARRAY_LENGTH(breeds_map), &flow_user_data->breed) != 0 ||
collectd_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 (collectd_map_flow_u8(
sock, category, categories_map, nDPIsrvd_ARRAY_LENGTH(categories_map), &flow_user_data->category) !=
0 ||
collectd_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 * current = NULL;
int next_child_index = -1;
if ((current = nDPIsrvd_get_next_token(sock, token, &next_child_index)) == NULL)
{
flow_user_data->confidence_ndpid_invalid = 1;
}
else if (nDPIsrvd_get_next_token(sock, token, &next_child_index) == NULL)
{
if (collectd_map_flow_u8(sock,
current,
confidence_map,
nDPIsrvd_ARRAY_LENGTH(confidence_map),
&flow_user_data->confidence) != 0 ||
collectd_map_value_to_stat(sock, 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, 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;
COLLECTD_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;
COLLECTD_STATS_GAUGE_RES(flow_state_info);
}
flow_user_data->is_finished = 1;
COLLECTD_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)
{
collectd_statistics.counters.flow_src_total_bytes +=
total_bytes_ull[0] - flow_user_data->last_flow_src_l4_payload_len;
collectd_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)
{
collectd_unmap_flow_from_stat(flow_user_data);
}
}
static enum nDPIsrvd_callback_return collectd_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");
COLLECTD_STATS_COUNTER_INC(json_lines);
collectd_statistics.counters.json_bytes += sock->buffer.json_message_length + NETWORK_BUFFER_LENGTH_DIGITS;
process_flow_stats(sock, flow);
if (flow_event != NULL &&
collectd_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 &&
collectd_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 &&
collectd_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 &&
collectd_map_value_to_stat(sock, error_event, error_event_map, nDPIsrvd_ARRAY_LENGTH(error_event_map)) != 0)
{
logger(1, "%s", "Unknown error_event_name");
}
return CALLBACK_OK;
}
int main(int argc, char ** argv)
{
enum nDPIsrvd_connect_return connect_ret;
int retval = 1, epollfd = -1;
init_logging("nDPIsrvd-collectd");
struct nDPIsrvd_socket * sock =
nDPIsrvd_socket_init(0, 0, 0, sizeof(struct flow_user_data), collectd_json_callback, NULL, NULL);
if (sock == NULL)
{
LOGGER_EARLY(1, "%s", "nDPIsrvd socket memory allocation failed!");
return 1;
}
if (parse_options(argc, argv, sock) != 0)
{
goto failure;
}
if (getenv("COLLECTD_HOSTNAME") == NULL && getenv("COLLECTD_INTERVAL") == NULL)
{
LOGGER_EARLY(0, "Recv buffer size: %u", NETWORK_BUFFER_MAX_SIZE);
LOGGER_EARLY(0, "Connecting to `%s'..", serv_optarg);
}
else
{
LOGGER_EARLY(0, "Collectd hostname: %s", getenv("COLLECTD_HOSTNAME"));
LOGGER_EARLY(0, "Collectd interval: %llu", collectd_interval_ull);
}
if (setvbuf(stdout, NULL, _IONBF, 0) != 0)
{
LOGGER_EARLY(1,
"Could not set stdout unbuffered: %s. Collectd may receive too old PUTVALs and complain.",
strerror(errno));
}
connect_ret = nDPIsrvd_connect(sock);
if (connect_ret != CONNECT_OK)
{
LOGGER_EARLY(1, "nDPIsrvd socket connect to %s failed!", serv_optarg);
goto failure;
}
if (nDPIsrvd_set_nonblock(sock) != 0)
{
LOGGER_EARLY(1, "nDPIsrvd set nonblock failed: %s", strerror(errno));
goto failure;
}
signal(SIGINT, sighandler);
signal(SIGTERM, sighandler);
signal(SIGPIPE, SIG_IGN);
collectd_pid = getppid();
epollfd = epoll_create1(0);
if (epollfd < 0)
{
LOGGER_EARLY(1, "Error creating epoll: %s", strerror(errno));
goto failure;
}
if (create_collectd_timer() != 0)
{
LOGGER_EARLY(1, "Error creating timer: %s", strerror(errno));
goto failure;
}
{
struct epoll_event timer_event = {.data.fd = collectd_timerfd, .events = EPOLLIN};
if (epoll_ctl(epollfd, EPOLL_CTL_ADD, collectd_timerfd, &timer_event) < 0)
{
LOGGER_EARLY(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_EARLY(1, "Error adding nDPIsrvd socket fd to epoll: %s", strerror(errno));
goto failure;
}
}
logger(0, "%s", "Initialization succeeded.");
retval = mainloop(epollfd, sock);
if (getenv("COLLECTD_INTERVAL") == NULL)
{
print_collectd_exec_output();
}
failure:
nDPIsrvd_socket_free(&sock);
close(collectd_timerfd);
close(epollfd);
shutdown_logging();
return retval;
}
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