#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/epoll.h>
#include <sys/stat.h>
#include <sys/timerfd.h>
#include <unistd.h>
#include <ndpi_typedefs.h>
#include "nDPIsrvd.h"
#include "utils.h"
#define BUFFER_MAX (NETWORK_BUFFER_MAX_SIZE / 3)
#define BUFFER_REMAINING(siz) (BUFFER_MAX - siz)
#define MAX_RISKS_PER_FLOW 8
#define MAX_SEVERITIES_PER_FLOW 4
typedef char csv_buf_t[(NETWORK_BUFFER_MAX_SIZE / 3) + 1];
static int main_thread_shutdown = 0;
static int analysed_timerfd = -1;
static struct nDPIsrvd_socket * distributor = NULL;
static char * pidfile = NULL;
static char * serv_optarg = NULL;
static char * user = NULL;
static char * group = NULL;
static char * analysed_interval = NULL;
static nDPIsrvd_ull analysed_interval_ull = 0uL;
static char * csv_outfile = NULL;
static FILE * csv_fp = NULL;
static char * stats_csv_outfile = NULL;
static FILE * stats_csv_fp = 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;
};
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_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 CSV write: gauges[0] -= gauges[1], gauges[1] is zero'd afterwards */
} analysed_statistics = {};
struct global_map
{
char const * const json_key;
struct
{
uint64_t * const global_stat_inc;
uint64_t * const global_stat_dec;
};
};
#define ANALYSED_STATS_COUNTER_PTR(member) {.global_stat_inc = &(analysed_statistics.counters.member), NULL}
#define ANALYSED_STATS_GAUGE_PTR(member) \
{.global_stat_inc = &(analysed_statistics.gauges[0].member), \
.global_stat_dec = &(analysed_statistics.gauges[1].member)}
#define ANALYSED_STATS_COUNTER_INC(member) (analysed_statistics.counters.member++)
#define ANALYSED_STATS_GAUGE_RES(member) (analysed_statistics.gauges[0].member--)
#define ANALYSED_STATS_GAUGE_INC(member) (analysed_statistics.gauges[0].member++)
#define ANALYSED_STATS_GAUGE_DEC(member) (analysed_statistics.gauges[1].member++)
#define ANALYSED_STATS_GAUGE_SUB(member) (analysed_statistics.gauges[0].member -= analysed_statistics.gauges[1].member)
#define ANALYSED_STATS_MAP_NOTNULL(map, index) (map[index - 1].global_stat_dec != NULL)
#define ANALYSED_STATS_MAP_DEC(map, index) ((*map[index - 1].global_stat_dec)++)
static struct global_map const flow_event_map[] = {{"new", ANALYSED_STATS_COUNTER_PTR(flow_new_count)},
{"end", ANALYSED_STATS_COUNTER_PTR(flow_end_count)},
{"idle", ANALYSED_STATS_COUNTER_PTR(flow_idle_count)},
{"update", ANALYSED_STATS_COUNTER_PTR(flow_update_count)},
{"analyse", ANALYSED_STATS_COUNTER_PTR(flow_analyse_count)},
{"guessed", ANALYSED_STATS_COUNTER_PTR(flow_guessed_count)},
{"detected", ANALYSED_STATS_COUNTER_PTR(flow_detected_count)},
{"detection-update",
ANALYSED_STATS_COUNTER_PTR(flow_detection_update_count)},
{"not-detected",
ANALYSED_STATS_COUNTER_PTR(flow_not_detected_count)}};
static struct global_map const packet_event_map[] = {{"packet", ANALYSED_STATS_COUNTER_PTR(packet_count)},
{"packet-flow", ANALYSED_STATS_COUNTER_PTR(packet_flow_count)}};
static struct global_map const daemon_event_map[] = {{"init", ANALYSED_STATS_COUNTER_PTR(init_count)},
{"reconnect", ANALYSED_STATS_COUNTER_PTR(reconnect_count)},
{"shutdown", ANALYSED_STATS_COUNTER_PTR(shutdown_count)},
{"status", ANALYSED_STATS_COUNTER_PTR(status_count)}};
static struct global_map const error_event_map[] = {
{"Unknown datalink layer packet", ANALYSED_STATS_COUNTER_PTR(error_unknown_datalink)},
{"Unknown L3 protocol", ANALYSED_STATS_COUNTER_PTR(error_unknown_l3_protocol)},
{"Unsupported datalink layer", ANALYSED_STATS_COUNTER_PTR(error_unsupported_datalink)},
{"Packet too short", ANALYSED_STATS_COUNTER_PTR(error_packet_too_short)},
{"Unknown packet type", ANALYSED_STATS_COUNTER_PTR(error_packet_type_unknown)},
{"Packet header invalid", ANALYSED_STATS_COUNTER_PTR(error_packet_header_invalid)},
{"IP4 packet too short", ANALYSED_STATS_COUNTER_PTR(error_ip4_packet_too_short)},
{"Packet smaller than IP4 header", ANALYSED_STATS_COUNTER_PTR(error_ip4_size_smaller_than_header)},
{"nDPI IPv4\\/L4 payload detection failed", ANALYSED_STATS_COUNTER_PTR(error_ip4_l4_payload_detection)},
{"IP6 packet too short", ANALYSED_STATS_COUNTER_PTR(error_ip6_packet_too_short)},
{"Packet smaller than IP6 header", ANALYSED_STATS_COUNTER_PTR(error_ip6_size_smaller_than_header)},
{"nDPI IPv6\\/L4 payload detection failed", ANALYSED_STATS_COUNTER_PTR(error_ip6_l4_payload_detection)},
{"TCP packet smaller than expected", ANALYSED_STATS_COUNTER_PTR(error_tcp_packet_too_short)},
{"UDP packet smaller than expected", ANALYSED_STATS_COUNTER_PTR(error_udp_packet_too_short)},
{"Captured packet size is smaller than expected packet size",
ANALYSED_STATS_COUNTER_PTR(error_capture_size_smaller_than_packet)},
{"Max flows to track reached", ANALYSED_STATS_COUNTER_PTR(error_max_flows_to_track)},
{"Flow memory allocation failed", ANALYSED_STATS_COUNTER_PTR(error_flow_memory_alloc)}};
static struct global_map const breeds_map[] = {{"Safe", ANALYSED_STATS_GAUGE_PTR(flow_breed_safe_count)},
{"Acceptable", ANALYSED_STATS_GAUGE_PTR(flow_breed_acceptable_count)},
{"Fun", ANALYSED_STATS_GAUGE_PTR(flow_breed_fun_count)},
{"Unsafe", ANALYSED_STATS_GAUGE_PTR(flow_breed_unsafe_count)},
{"Potentially Dangerous",
ANALYSED_STATS_GAUGE_PTR(flow_breed_potentially_dangerous_count)},
{"Tracker\\/Ads",
ANALYSED_STATS_GAUGE_PTR(flow_breed_tracker_ads_count)},
{"Dangerous", ANALYSED_STATS_GAUGE_PTR(flow_breed_dangerous_count)},
{"Unrated", ANALYSED_STATS_GAUGE_PTR(flow_breed_unrated_count)},
{NULL, ANALYSED_STATS_GAUGE_PTR(flow_breed_unknown_count)}};
static struct global_map const categories_map[] = {
{"Unspecified", ANALYSED_STATS_GAUGE_PTR(flow_category_unspecified_count)},
{"Media", ANALYSED_STATS_GAUGE_PTR(flow_category_media_count)},
{"VPN", ANALYSED_STATS_GAUGE_PTR(flow_category_vpn_count)},
{"Email", ANALYSED_STATS_GAUGE_PTR(flow_category_email_count)},
{"DataTransfer", ANALYSED_STATS_GAUGE_PTR(flow_category_data_transfer_count)},
{"Web", ANALYSED_STATS_GAUGE_PTR(flow_category_web_count)},
{"SocialNetwork", ANALYSED_STATS_GAUGE_PTR(flow_category_social_network_count)},
{"Download", ANALYSED_STATS_GAUGE_PTR(flow_category_download_count)},
{"Game", ANALYSED_STATS_GAUGE_PTR(flow_category_game_count)},
{"Chat", ANALYSED_STATS_GAUGE_PTR(flow_category_chat_count)},
{"VoIP", ANALYSED_STATS_GAUGE_PTR(flow_category_voip_count)},
{"Database", ANALYSED_STATS_GAUGE_PTR(flow_category_database_count)},
{"RemoteAccess", ANALYSED_STATS_GAUGE_PTR(flow_category_remote_access_count)},
{"Cloud", ANALYSED_STATS_GAUGE_PTR(flow_category_cloud_count)},
{"Network", ANALYSED_STATS_GAUGE_PTR(flow_category_network_count)},
{"Collaborative", ANALYSED_STATS_GAUGE_PTR(flow_category_collaborative_count)},
{"RPC", ANALYSED_STATS_GAUGE_PTR(flow_category_rpc_count)},
{"Streaming", ANALYSED_STATS_GAUGE_PTR(flow_category_streaming_count)},
{"System", ANALYSED_STATS_GAUGE_PTR(flow_category_system_count)},
{"SoftwareUpdate", ANALYSED_STATS_GAUGE_PTR(flow_category_software_update_count)},
{"Music", ANALYSED_STATS_GAUGE_PTR(flow_category_music_count)},
{"Video", ANALYSED_STATS_GAUGE_PTR(flow_category_video_count)},
{"Shopping", ANALYSED_STATS_GAUGE_PTR(flow_category_shopping_count)},
{"Productivity", ANALYSED_STATS_GAUGE_PTR(flow_category_productivity_count)},
{"FileSharing", ANALYSED_STATS_GAUGE_PTR(flow_category_file_sharing_count)},
{"ConnCheck", ANALYSED_STATS_GAUGE_PTR(flow_category_conn_check_count)},
{"IoT-Scada", ANALYSED_STATS_GAUGE_PTR(flow_category_iot_scada_count)},
{"VirtAssistant", ANALYSED_STATS_GAUGE_PTR(flow_category_virt_assistant_count)},
{"Cybersecurity", ANALYSED_STATS_GAUGE_PTR(flow_category_cybersecurity_count)},
{"AdultContent", ANALYSED_STATS_GAUGE_PTR(flow_category_adult_content_count)},
{"Mining", ANALYSED_STATS_GAUGE_PTR(flow_category_mining_count)},
{"Malware", ANALYSED_STATS_GAUGE_PTR(flow_category_malware_count)},
{"Advertisement", ANALYSED_STATS_GAUGE_PTR(flow_category_advertisment_count)},
{"Banned_Site", ANALYSED_STATS_GAUGE_PTR(flow_category_banned_site_count)},
{"Site_Unavailable", ANALYSED_STATS_GAUGE_PTR(flow_category_site_unavail_count)},
{"Allowed_Site", ANALYSED_STATS_GAUGE_PTR(flow_category_allowed_site_count)},
{"Antimalware", ANALYSED_STATS_GAUGE_PTR(flow_category_antimalware_count)},
{"Crypto_Currency", ANALYSED_STATS_GAUGE_PTR(flow_category_crypto_currency_count)},
{"Gambling", ANALYSED_STATS_GAUGE_PTR(flow_category_gambling_count)},
{"Health", ANALYSED_STATS_GAUGE_PTR(flow_category_health_count)},
{NULL, ANALYSED_STATS_GAUGE_PTR(flow_category_unknown_count)}};
static struct global_map const confidence_map[] = {
{"Match by port", ANALYSED_STATS_GAUGE_PTR(flow_confidence_by_port)},
{"DPI (partial)", ANALYSED_STATS_GAUGE_PTR(flow_confidence_dpi_partial)},
{"DPI (partial cache)", ANALYSED_STATS_GAUGE_PTR(flow_confidence_dpi_partial_cache)},
{"DPI (cache)", ANALYSED_STATS_GAUGE_PTR(flow_confidence_dpi_cache)},
{"DPI", ANALYSED_STATS_GAUGE_PTR(flow_confidence_dpi)},
{"nBPF", ANALYSED_STATS_GAUGE_PTR(flow_confidence_nbpf)},
{"Match by IP", ANALYSED_STATS_GAUGE_PTR(flow_confidence_by_ip)},
{"DPI (aggressive)", ANALYSED_STATS_GAUGE_PTR(flow_confidence_dpi_aggressive)},
{"Match by custom rule", ANALYSED_STATS_GAUGE_PTR(flow_confidence_custom_rule)},
{NULL, ANALYSED_STATS_GAUGE_PTR(flow_confidence_unknown)}};
static struct global_map const severity_map[] = {{"Low", ANALYSED_STATS_GAUGE_PTR(flow_severity_low)},
{"Medium", ANALYSED_STATS_GAUGE_PTR(flow_severity_medium)},
{"High", ANALYSED_STATS_GAUGE_PTR(flow_severity_high)},
{"Severe", ANALYSED_STATS_GAUGE_PTR(flow_severity_severe)},
{"Critical", ANALYSED_STATS_GAUGE_PTR(flow_severity_critical)},
{"Emergency", ANALYSED_STATS_GAUGE_PTR(flow_severity_emergency)},
{NULL, ANALYSED_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
static void nDPIsrvd_write_flow_info_cb(struct nDPIsrvd_socket const * sock,
struct nDPIsrvd_instance const * instance,
struct nDPIsrvd_thread_data const * thread_data,
struct nDPIsrvd_flow const * flow,
void * user_data)
{
(void)sock;
(void)instance;
(void)user_data;
if (flow == NULL || thread_data == NULL)
{
logger(0, "%s", "[WriteFlowInfoCallback] BUG: Internal error.");
return;
}
logger(0,
"[Thread %2d][Flow %5llu][ptr: "
#ifdef __LP64__
"0x%016llx"
#else
"0x%08lx"
#endif
"][last-seen: %13llu][idle-time: %7llu][time-until-timeout: %7llu]",
flow->thread_id,
flow->id_as_ull,
#ifdef __LP64__
(unsigned long long int)flow,
#else
(unsigned long int)flow,
#endif
flow->last_seen,
flow->idle_time,
(flow->last_seen + flow->idle_time >= thread_data->most_recent_flow_time
? flow->last_seen + flow->idle_time - thread_data->most_recent_flow_time
: 0));
}
static void nDPIsrvd_verify_flows_cb(struct nDPIsrvd_thread_data const * const thread_data,
struct nDPIsrvd_flow const * const flow,
void * user_data)
{
(void)user_data;
if (thread_data != NULL)
{
if (flow->last_seen + flow->idle_time >= thread_data->most_recent_flow_time)
{
logger(1,
"Thread %d / %d, Flow %llu verification failed",
thread_data->thread_key,
flow->thread_id,
flow->id_as_ull);
}
else
{
logger(1,
"Thread %d / %d, Flow %llu verification failed, diff: %llu",
thread_data->thread_key,
flow->thread_id,
flow->id_as_ull,
thread_data->most_recent_flow_time - flow->last_seen + flow->idle_time);
}
}
else
{
logger(1, "Thread [UNKNOWN], Flow %llu verification failed", flow->id_as_ull);
}
}
static void sighandler(int signum)
{
struct nDPIsrvd_instance * current_instance;
struct nDPIsrvd_instance * itmp;
int verification_failed = 0;
if (signum == SIGUSR1)
{
nDPIsrvd_flow_info(distributor, nDPIsrvd_write_flow_info_cb, NULL);
HASH_ITER(hh, distributor->instance_table, current_instance, itmp)
{
if (nDPIsrvd_verify_flows(current_instance, nDPIsrvd_verify_flows_cb, NULL) != 0)
{
logger(1, "Flow verification failed for instance %d", current_instance->alias_source_key);
verification_failed = 1;
}
}
if (verification_failed == 0)
{
logger(1, "%s", "Flow verification succeeded.");
}
else
{
/* FATAL! */
exit(EXIT_FAILURE);
}
}
else if (signum == SIGUSR2)
{
if (csv_fp != NULL)
{
fflush(csv_fp);
}
if (stats_csv_fp != NULL)
{
fflush(stats_csv_fp);
}
}
else if (main_thread_shutdown == 0)
{
main_thread_shutdown = 1;
}
}
static void csv_buf_add(csv_buf_t buf, size_t * const csv_buf_used, char const * const str, size_t siz_len)
{
size_t len;
if (siz_len > 0 && str != NULL)
{
len = MIN(BUFFER_REMAINING(*csv_buf_used), siz_len);
if (len == 0)
{
return;
}
snprintf(buf + *csv_buf_used, BUFFER_MAX - len, "%.*s", (int)len, str);
}
else
{
len = 0;
}
*csv_buf_used += len;
if (BUFFER_REMAINING(*csv_buf_used) > 0)
{
buf[*csv_buf_used] = ',';
(*csv_buf_used)++;
}
buf[*csv_buf_used] = '\0';
}
static int json_value_to_csv(
struct nDPIsrvd_socket * const sock, csv_buf_t buf, size_t * const csv_buf_used, char const * const json_key, ...)
{
va_list ap;
nDPIsrvd_hashkey key;
struct nDPIsrvd_json_token const * token;
size_t val_length = 0;
char const * val;
int ret = 0;
va_start(ap, json_key);
key = nDPIsrvd_vbuild_jsmn_key(json_key, ap);
va_end(ap);
token = nDPIsrvd_find_token(sock, key);
if (token == NULL)
{
ret++;
}
val = TOKEN_GET_VALUE(sock, token, &val_length);
if (val == NULL)
{
ret++;
}
csv_buf_add(buf, csv_buf_used, val, val_length);
return ret;
}
static int json_array_to_csv(
struct nDPIsrvd_socket * const sock, csv_buf_t buf, size_t * const csv_buf_used, char const * const json_key, ...)
{
va_list ap;
nDPIsrvd_hashkey key;
struct nDPIsrvd_json_token const * token;
int ret = 0;
va_start(ap, json_key);
key = nDPIsrvd_vbuild_jsmn_key(json_key, ap);
va_end(ap);
token = nDPIsrvd_find_token(sock, key);
if (token == NULL)
{
ret++;
csv_buf_add(buf, csv_buf_used, NULL, 0);
}
{
size_t token_count = 0;
struct nDPIsrvd_json_token next = {};
csv_buf_add(buf, csv_buf_used, "\"", 1);
buf[--(*csv_buf_used)] = '\0';
while (nDPIsrvd_token_iterate(sock, token, &next) == 0)
{
size_t val_length = 0;
char const * const val = TOKEN_GET_VALUE(sock, &next, &val_length);
csv_buf_add(buf, csv_buf_used, val, val_length);
token_count++;
}
if (token_count > 0)
{
buf[--(*csv_buf_used)] = '\0';
}
csv_buf_add(buf, csv_buf_used, "\"", 1);
}
return ret;
}
static int analysed_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 analysed_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 analysed_map_to_stat(value_str, value_length, map, map_length);
}
static void analysed_unmap_flow_from_stat(struct flow_user_data const * const flow_user_data)
{
if (flow_user_data->is_ip4 != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_l3_ip4_count);
}
if (flow_user_data->is_ip6 != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_l3_ip6_count);
}
if (flow_user_data->is_other_l3 != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_l3_other_count);
}
if (flow_user_data->is_tcp != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_l4_tcp_count);
}
if (flow_user_data->is_udp != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_l4_udp_count);
}
if (flow_user_data->is_icmp != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_l4_icmp_count);
}
if (flow_user_data->is_other_l4 != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_l4_other_count);
}
if (flow_user_data->new_seen != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_active_count);
}
if (flow_user_data->is_detected != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_detected_count);
}
if (flow_user_data->is_guessed != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_guessed_count);
}
if (flow_user_data->is_not_detected != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_not_detected_count);
}
if (flow_user_data->is_info != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_state_info);
}
if (flow_user_data->is_finished != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_state_finished);
}
if (flow_user_data->breed > 0 && flow_user_data->breed_ndpid_invalid == 0 &&
ANALYSED_STATS_MAP_NOTNULL(breeds_map, flow_user_data->breed) != 0)
{
ANALYSED_STATS_MAP_DEC(breeds_map, flow_user_data->breed);
}
if (flow_user_data->category > 0 && flow_user_data->category_ndpid_invalid == 0 &&
ANALYSED_STATS_MAP_NOTNULL(categories_map, flow_user_data->category) != 0)
{
ANALYSED_STATS_MAP_DEC(categories_map, flow_user_data->category);
}
if (flow_user_data->confidence > 0 && flow_user_data->confidence_ndpid_invalid == 0 &&
ANALYSED_STATS_MAP_NOTNULL(confidence_map, flow_user_data->confidence) != 0)
{
ANALYSED_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)
{
ANALYSED_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)
{
ANALYSED_STATS_GAUGE_DEC(flow_risk_count[flow_user_data->risks[i]]);
}
}
if (flow_user_data->risk_ndpid_invalid != 0)
{
ANALYSED_STATS_GAUGE_DEC(flow_risk_unknown_count);
}
}
static ssize_t analysed_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 analysed_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 = analysed_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 * 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;
ANALYSED_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;
ANALYSED_STATS_GAUGE_INC(flow_l3_ip4_count);
}
else if (TOKEN_VALUE_EQUALS_SZ(sock, l3_proto, "ip6") != 0)
{
flow_user_data->is_ip6 = 1;
ANALYSED_STATS_GAUGE_INC(flow_l3_ip6_count);
}
else if (l3_proto != NULL)
{
flow_user_data->is_other_l3 = 1;
ANALYSED_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;
ANALYSED_STATS_GAUGE_INC(flow_l4_tcp_count);
}
else if (TOKEN_VALUE_EQUALS_SZ(sock, l4_proto, "udp") != 0)
{
flow_user_data->is_udp = 1;
ANALYSED_STATS_GAUGE_INC(flow_l4_udp_count);
}
else if (TOKEN_VALUE_EQUALS_SZ(sock, l4_proto, "icmp") != 0)
{
flow_user_data->is_icmp = 1;
ANALYSED_STATS_GAUGE_INC(flow_l4_icmp_count);
}
else if (l4_proto != NULL)
{
flow_user_data->is_other_l4 = 1;
ANALYSED_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;
ANALYSED_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;
ANALYSED_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;
ANALYSED_STATS_GAUGE_INC(flow_detected_count);
}
if (flow_risk != NULL)
{
if (flow_user_data->risks[0] == 0)
{
ANALYSED_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 (analysed_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 (analysed_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;
}
if (numeric_risk_value > UCHAR_MAX)
{
logger(1, "BUG: Numeric risk value > 255");
}
ANALYSED_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;
ANALYSED_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 (analysed_map_flow_u8(
sock, breed, breeds_map, nDPIsrvd_ARRAY_LENGTH(breeds_map), &flow_user_data->breed) != 0 ||
analysed_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 (analysed_map_flow_u8(
sock, category, categories_map, nDPIsrvd_ARRAY_LENGTH(categories_map), &flow_user_data->category) !=
0 ||
analysed_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 (analysed_map_flow_u8(sock,
current,
confidence_map,
nDPIsrvd_ARRAY_LENGTH(confidence_map),
&flow_user_data->confidence) != 0 ||
analysed_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;
ANALYSED_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;
ANALYSED_STATS_GAUGE_RES(flow_state_info);
}
flow_user_data->is_finished = 1;
ANALYSED_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)
{
analysed_statistics.counters.flow_src_total_bytes +=
total_bytes_ull[0] - flow_user_data->last_flow_src_l4_payload_len;
analysed_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)
{
analysed_unmap_flow_from_stat(flow_user_data);
}
}
static void process_global_stats(struct nDPIsrvd_socket const * const sock)
{
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");
ANALYSED_STATS_COUNTER_INC(json_lines);
analysed_statistics.counters.json_bytes += sock->buffer.json_message_length + NETWORK_BUFFER_LENGTH_DIGITS;
if (flow_event != NULL &&
analysed_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 &&
analysed_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 &&
analysed_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 &&
analysed_map_value_to_stat(sock, error_event, error_event_map, nDPIsrvd_ARRAY_LENGTH(error_event_map)) != 0)
{
logger(1, "%s", "Unknown error_event_name");
}
}
static enum nDPIsrvd_callback_return process_analyse_events(struct nDPIsrvd_socket * const sock)
{
csv_buf_t buf;
size_t csv_buf_used = 0;
struct nDPIsrvd_json_token const * const flow_event_name = TOKEN_GET_SZ(sock, "flow_event_name");
if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "analyse") == 0)
{
return CALLBACK_OK;
}
if (TOKEN_GET_SZ(sock, "data_analysis") == NULL)
{
return CALLBACK_ERROR;
}
buf[0] = '\0';
json_value_to_csv(sock, buf, &csv_buf_used, "flow_datalink", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "l3_proto", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "src_ip", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "dst_ip", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "l4_proto", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "src_port", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "dst_port", NULL);
if (json_value_to_csv(sock, buf, &csv_buf_used, "flow_state", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_src_packets_processed", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_dst_packets_processed", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_first_seen", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_src_last_pkt_time", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_dst_last_pkt_time", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_src_min_l4_payload_len", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_dst_min_l4_payload_len", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_src_max_l4_payload_len", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_dst_max_l4_payload_len", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_src_tot_l4_payload_len", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "flow_dst_tot_l4_payload_len", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "midstream", NULL) != 0)
{
return CALLBACK_ERROR;
}
if (json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "iat", "min", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "iat", "avg", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "iat", "max", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "iat", "stddev", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "iat", "var", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "iat", "ent", NULL) != 0)
{
return CALLBACK_ERROR;
}
if (json_array_to_csv(sock, buf, &csv_buf_used, "data_analysis", "iat", "data", NULL) != 0)
{
return CALLBACK_ERROR;
}
if (json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "pktlen", "min", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "pktlen", "avg", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "pktlen", "max", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "pktlen", "stddev", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "pktlen", "var", NULL) != 0 ||
json_value_to_csv(sock, buf, &csv_buf_used, "data_analysis", "pktlen", "ent", NULL) != 0)
{
return CALLBACK_ERROR;
}
if (json_array_to_csv(sock, buf, &csv_buf_used, "data_analysis", "pktlen", "data", NULL) != 0)
{
return CALLBACK_ERROR;
}
if (json_array_to_csv(sock, buf, &csv_buf_used, "data_analysis", "bins", "c_to_s", NULL) != 0)
{
return CALLBACK_ERROR;
}
if (json_array_to_csv(sock, buf, &csv_buf_used, "data_analysis", "bins", "s_to_c", NULL) != 0)
{
return CALLBACK_ERROR;
}
if (json_array_to_csv(sock, buf, &csv_buf_used, "data_analysis", "directions", NULL) != 0)
{
return CALLBACK_ERROR;
}
if (json_array_to_csv(sock, buf, &csv_buf_used, "data_analysis", "entropies", NULL) != 0)
{
return CALLBACK_ERROR;
}
json_value_to_csv(sock, buf, &csv_buf_used, "ndpi", "proto", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "ndpi", "proto_id", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "ndpi", "encrypted", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "ndpi", "breed", NULL);
json_value_to_csv(sock, buf, &csv_buf_used, "ndpi", "category", NULL);
{
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 (token == NULL)
{
csv_buf_add(buf, &csv_buf_used, NULL, 0);
csv_buf_add(buf, &csv_buf_used, NULL, 0);
}
else
{
while ((current = nDPIsrvd_get_next_token(sock, token, &next_child_index)) != NULL)
{
size_t key_length = 0, value_length = 0;
char const * const key = TOKEN_GET_KEY(sock, current, &key_length);
char const * const value = TOKEN_GET_VALUE(sock, current, &value_length);
csv_buf_add(buf, &csv_buf_used, key, key_length);
csv_buf_add(buf, &csv_buf_used, value, value_length);
}
}
}
{
csv_buf_t risks;
size_t csv_risks_used = 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;
risks[csv_risks_used++] = '"';
risks[csv_risks_used] = '\0';
if (flow_risk != NULL)
{
while ((current = nDPIsrvd_get_next_token(sock, flow_risk, &next_child_index)) != NULL)
{
size_t key_length = 0;
char const * const key = TOKEN_GET_KEY(sock, current, &key_length);
csv_buf_add(risks, &csv_risks_used, key, key_length);
}
}
if (csv_risks_used > 1)
{
risks[csv_risks_used - 1] = '"';
}
else if (BUFFER_REMAINING(csv_risks_used) > 0)
{
risks[csv_risks_used++] = '"';
}
if (BUFFER_REMAINING(csv_risks_used) > 0)
{
risks[csv_risks_used] = '\0';
}
else
{
risks[csv_risks_used - 1] = '\0';
}
csv_buf_add(buf, &csv_buf_used, risks, csv_risks_used);
}
if (csv_buf_used > 0 && buf[csv_buf_used - 1] == ',')
{
buf[--csv_buf_used] = '\0';
}
fprintf(csv_fp, "%.*s\n", (int)csv_buf_used, buf);
return CALLBACK_OK;
}
static enum nDPIsrvd_callback_return analysed_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;
if (stats_csv_fp != NULL)
{
process_global_stats(sock);
}
if (flow == NULL)
{
return CALLBACK_OK;
}
if (stats_csv_fp != NULL)
{
process_flow_stats(sock, flow);
}
if (csv_fp != NULL && process_analyse_events(sock) != CALLBACK_OK)
{
return CALLBACK_ERROR;
}
return CALLBACK_OK;
}
static void print_usage(char const * const arg0)
{
static char const usage[] =
"Usage: %s "
"[-l] [-d] [-p pidfile] [-s host]\n"
"\t \t[-u user] [-g group] [-o csv-outfile] [-O csv-outfile]\n\n"
"\t-l\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 \tCan be either a path to UNIX socket or an IPv4/TCP-Port IPv6/TCP-Port tuple.\n"
"\t-u\tChange user.\n"
"\t-g\tChange group.\n"
"\t-o\tSpecify the CSV output file for analysis results.\n"
"\t-O\tWrite some global statistics to a CSV every `-t' seconds.\n"
"\t-t\tTime interval for `-O'.\n\n";
fprintf(stderr, usage, arg0);
}
static int parse_options(int argc, char ** argv)
{
int opt;
while ((opt = getopt(argc, argv, "hldp:s:u:g:o:O:t:")) != -1)
{
switch (opt)
{
case 'l':
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 'o':
free(csv_outfile);
csv_outfile = strdup(optarg);
break;
case 'O':
free(stats_csv_outfile);
stats_csv_outfile = strdup(optarg);
break;
case 't':
free(analysed_interval);
analysed_interval = strdup(optarg);
break;
default:
print_usage(argv[0]);
return 1;
}
}
if (csv_outfile == NULL && stats_csv_outfile == NULL)
{
logger_early(1,
"%s: Missing either analyse CSV output file (`-o') or global stats CSV output file (`-O')",
argv[0]);
return 1;
}
if (csv_outfile != NULL)
{
opt = 0;
if (access(csv_outfile, F_OK) != 0 && errno == ENOENT)
{
opt = 1;
}
else
{
if (chmod_chown(csv_outfile, S_IRUSR | S_IWUSR, "root", "root") != 0)
{
// skip "unused result" warning
}
}
csv_fp = fopen(csv_outfile, "a+");
if (csv_fp == NULL)
{
logger_early(1, "%s: Could not open file `%s' for appending: %s", argv[0], csv_outfile, strerror(errno));
return 1;
}
if (opt != 0)
{
fprintf(csv_fp,
"flow_datalink,l3_proto,src_ip,dst_ip,l4_proto,src_port,dst_port,flow_state,flow_src_packets_"
"processed,"
"flow_dst_packets_processed,flow_first_seen,flow_src_last_pkt_time,flow_dst_last_pkt_time,flow_src_"
"min_"
"l4_payload_len,flow_dst_min_l4_payload_len,flow_src_max_l4_payload_len,flow_dst_max_l4_payload_"
"len,"
"flow_src_tot_l4_payload_len,flow_dst_tot_l4_payload_len,midstream,iat_min,iat_avg,iat_max,iat_"
"stddev,"
"iat_var,iat_ent,iat_data,pktlen_min,pktlen_avg,pktlen_max,pktlen_stddev,pktlen_var,pktlen_ent,"
"pktlen_"
"data,bins_c_to_s,bins_s_to_c,directions,entropies,proto,proto_id,encrypted,breed,category,"
"confidence_id,confidence,risks\n");
}
}
if (serv_optarg == NULL)
{
serv_optarg = strdup(DISTRIBUTOR_UNIX_SOCKET);
}
if (stats_csv_outfile != NULL)
{
opt = 0;
if (access(stats_csv_outfile, F_OK) != 0 && errno == ENOENT)
{
opt = 1;
}
else
{
if (chmod_chown(stats_csv_outfile, S_IRUSR | S_IWUSR, "root", "root") != 0)
{
// skip "unused result" warning
}
}
stats_csv_fp = fopen(stats_csv_outfile, "a+");
if (stats_csv_fp == NULL)
{
logger_early(
1, "%s: Could not open file `%s' for appending: %s", argv[0], stats_csv_outfile, strerror(errno));
return 1;
}
if (opt != 0)
{
fprintf(stats_csv_fp,
"%s",
"timestamp,"
"json_lines,json_bytes,flow_src_total_bytes,flow_dst_total_bytes,"
"flow_new_count,flow_end_count,flow_idle_count,flow_update_count,flow_analyse_count,flow_guessed_"
"count,flow_detected_count,flow_detection_update_count,flow_not_detected_count,flow_risky_count,"
"packet_count,packet_flow_count,init_count,reconnect_count,shutdown_count,status_count,error_"
"unknown_datalink,error_unknown_l3_protocol,error_unsupported_datalink,error_packet_too_short,"
"error_packet_type_unknown,error_packet_header_invalid,error_ip4_packet_too_short,error_ip4_size_"
"smaller_than_header,error_ip4_l4_payload_detection,error_ip6_packet_too_short,error_ip6_size_"
"smaller_than_header,error_ip6_l4_payload_detection,error_tcp_packet_too_short,error_udp_packet_"
"too_short,error_capture_size_smaller_than_packet,error_max_flows_to_track,error_flow_memory_"
"alloc,"
"flow_state_info,flow_state_finished,"
"flow_breed_safe_count,flow_breed_acceptable_count,flow_breed_fun_count,flow_breed_unsafe_count,"
"flow_breed_potentially_dangerous_count,flow_breed_tracker_ads_count,flow_breed_dangerous_count,"
"flow_breed_unrated_count,flow_breed_unknown_count,"
"flow_category_unspecified_count,flow_category_media_count,flow_category_vpn_count,flow_category_"
"email_count,flow_category_data_transfer_count,flow_category_web_count,flow_category_social_"
"network_count,flow_category_download_count,flow_category_game_count,flow_category_chat_count,flow_"
"category_voip_count,flow_category_database_count,flow_category_remote_access_count,flow_category_"
"cloud_count,flow_category_network_count,flow_category_collaborative_count,flow_category_rpc_count,"
"flow_category_streaming_count,flow_category_system_count,flow_category_software_update_count,flow_"
"category_music_count,flow_category_video_count,flow_category_shopping_count,flow_category_"
"productivity_count,flow_category_file_sharing_count,flow_category_conn_check_count,flow_category_"
"iot_scada_count,flow_category_virt_assistant_count,flow_category_cybersecurity_count,flow_"
"category_adult_content_count,flow_category_mining_count,flow_category_malware_count,flow_category_"
"advertisment_count,flow_category_banned_site_count,flow_category_site_unavail_count,flow_category_"
"allowed_site_count,flow_category_antimalware_count,flow_category_crypto_currency_count,flow_"
"category_gambling_count,flow_category_unknown_count,"
"flow_confidence_by_port,flow_confidence_dpi_partial,flow_confidence_dpi_partial_cache,flow_"
"confidence_dpi_cache,flow_confidence_dpi,flow_confidence_nbpf,flow_confidence_by_ip,flow_"
"confidence_dpi_aggressive,flow_confidence_custom_rule,flow_confidence_unknown,"
"flow_severity_low,flow_severity_medium,flow_severity_high,flow_severity_severe,flow_severity_"
"critical,flow_severity_emergency,flow_severity_unknown,"
"flow_l3_ip4_count,flow_l3_ip6_count,flow_l3_other_count,"
"flow_l4_tcp_count,flow_l4_udp_count,flow_l4_icmp_count,flow_l4_other_count,"
"flow_active_count,flow_detected_count,flow_guessed_count,flow_not_detected_count,");
for (size_t i = 0; i < NDPI_MAX_RISK - 1 /* NDPI_NO_RISK */; ++i)
{
fprintf(stats_csv_fp, "flow_risk_%zu_count,", i + 1);
}
fprintf(stats_csv_fp, "%s\n", "flow_risk_unknown_count");
}
if (analysed_interval == NULL)
{
analysed_interval = strdup("30");
}
if (str_value_to_ull(analysed_interval, &analysed_interval_ull) != CONVERSION_OK)
{
logger_early(1, "Global Stats CSV write interval `%s' is not a valid number", analysed_interval);
return 1;
}
if (analysed_interval_ull == 0)
{
logger_early(0, "%s", "Global Stats CSV write interval is zero, summarizing stats during termination");
}
}
if (optind < argc)
{
logger_early(1, "%s", "Unexpected argument after options");
print_usage(argv[0]);
return 1;
}
return 0;
}
static int set_analysed_timer(void)
{
if (analysed_interval_ull == 0)
{
return 0;
}
const time_t interval = analysed_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(analysed_timerfd, 0, &its, NULL);
}
static int create_analysed_timer(void)
{
analysed_timerfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK);
if (analysed_timerfd < 0)
{
return 1;
}
return set_analysed_timer();
}
#define ANALYSEDB_FORMAT() "%llu,"
#define ANALYSEDB_VALUE_COUNTER(value) (unsigned long long int)analysed_statistics.counters.value
#define ANALYSEDB_VALUE_GAUGE(value) (unsigned long long int)analysed_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 write_global_flow_stats(void)
{
int rc = 1;
char output_buffer[BUFSIZ];
char * buf = &output_buffer[0];
size_t siz = sizeof(output_buffer);
int bytes;
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_COUNTER(json_lines),
ANALYSEDB_VALUE_COUNTER(json_bytes),
ANALYSEDB_VALUE_COUNTER(flow_src_total_bytes),
ANALYSEDB_VALUE_COUNTER(flow_dst_total_bytes));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_COUNTER(flow_new_count),
ANALYSEDB_VALUE_COUNTER(flow_end_count),
ANALYSEDB_VALUE_COUNTER(flow_idle_count),
ANALYSEDB_VALUE_COUNTER(flow_update_count),
ANALYSEDB_VALUE_COUNTER(flow_analyse_count),
ANALYSEDB_VALUE_COUNTER(flow_guessed_count),
ANALYSEDB_VALUE_COUNTER(flow_detected_count),
ANALYSEDB_VALUE_COUNTER(flow_detection_update_count),
ANALYSEDB_VALUE_COUNTER(flow_not_detected_count),
ANALYSEDB_VALUE_COUNTER(flow_risky_count),
ANALYSEDB_VALUE_COUNTER(packet_count),
ANALYSEDB_VALUE_COUNTER(packet_flow_count),
ANALYSEDB_VALUE_COUNTER(init_count),
ANALYSEDB_VALUE_COUNTER(reconnect_count),
ANALYSEDB_VALUE_COUNTER(shutdown_count),
ANALYSEDB_VALUE_COUNTER(status_count),
ANALYSEDB_VALUE_COUNTER(error_unknown_datalink),
ANALYSEDB_VALUE_COUNTER(error_unknown_l3_protocol),
ANALYSEDB_VALUE_COUNTER(error_unsupported_datalink),
ANALYSEDB_VALUE_COUNTER(error_packet_too_short),
ANALYSEDB_VALUE_COUNTER(error_packet_type_unknown),
ANALYSEDB_VALUE_COUNTER(error_packet_header_invalid),
ANALYSEDB_VALUE_COUNTER(error_ip4_packet_too_short),
ANALYSEDB_VALUE_COUNTER(error_ip4_size_smaller_than_header),
ANALYSEDB_VALUE_COUNTER(error_ip4_l4_payload_detection),
ANALYSEDB_VALUE_COUNTER(error_ip6_packet_too_short),
ANALYSEDB_VALUE_COUNTER(error_ip6_size_smaller_than_header),
ANALYSEDB_VALUE_COUNTER(error_ip6_l4_payload_detection),
ANALYSEDB_VALUE_COUNTER(error_tcp_packet_too_short),
ANALYSEDB_VALUE_COUNTER(error_udp_packet_too_short),
ANALYSEDB_VALUE_COUNTER(error_capture_size_smaller_than_packet),
ANALYSEDB_VALUE_COUNTER(error_max_flows_to_track),
ANALYSEDB_VALUE_COUNTER(error_flow_memory_alloc));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_GAUGE(flow_state_info),
ANALYSEDB_VALUE_GAUGE(flow_state_finished));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_GAUGE(flow_breed_safe_count),
ANALYSEDB_VALUE_GAUGE(flow_breed_acceptable_count),
ANALYSEDB_VALUE_GAUGE(flow_breed_fun_count),
ANALYSEDB_VALUE_GAUGE(flow_breed_unsafe_count),
ANALYSEDB_VALUE_GAUGE(flow_breed_potentially_dangerous_count),
ANALYSEDB_VALUE_GAUGE(flow_breed_tracker_ads_count),
ANALYSEDB_VALUE_GAUGE(flow_breed_dangerous_count),
ANALYSEDB_VALUE_GAUGE(flow_breed_unrated_count),
ANALYSEDB_VALUE_GAUGE(flow_breed_unknown_count));
CHECK_SNPRINTF_RET(bytes);
bytes =
snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_GAUGE(flow_category_unspecified_count),
ANALYSEDB_VALUE_GAUGE(flow_category_media_count),
ANALYSEDB_VALUE_GAUGE(flow_category_vpn_count),
ANALYSEDB_VALUE_GAUGE(flow_category_email_count),
ANALYSEDB_VALUE_GAUGE(flow_category_data_transfer_count),
ANALYSEDB_VALUE_GAUGE(flow_category_web_count),
ANALYSEDB_VALUE_GAUGE(flow_category_social_network_count),
ANALYSEDB_VALUE_GAUGE(flow_category_download_count),
ANALYSEDB_VALUE_GAUGE(flow_category_game_count),
ANALYSEDB_VALUE_GAUGE(flow_category_chat_count),
ANALYSEDB_VALUE_GAUGE(flow_category_voip_count),
ANALYSEDB_VALUE_GAUGE(flow_category_database_count),
ANALYSEDB_VALUE_GAUGE(flow_category_remote_access_count),
ANALYSEDB_VALUE_GAUGE(flow_category_cloud_count),
ANALYSEDB_VALUE_GAUGE(flow_category_network_count),
ANALYSEDB_VALUE_GAUGE(flow_category_collaborative_count),
ANALYSEDB_VALUE_GAUGE(flow_category_rpc_count),
ANALYSEDB_VALUE_GAUGE(flow_category_streaming_count),
ANALYSEDB_VALUE_GAUGE(flow_category_system_count),
ANALYSEDB_VALUE_GAUGE(flow_category_software_update_count),
ANALYSEDB_VALUE_GAUGE(flow_category_music_count),
ANALYSEDB_VALUE_GAUGE(flow_category_video_count),
ANALYSEDB_VALUE_GAUGE(flow_category_shopping_count),
ANALYSEDB_VALUE_GAUGE(flow_category_productivity_count),
ANALYSEDB_VALUE_GAUGE(flow_category_file_sharing_count),
ANALYSEDB_VALUE_GAUGE(flow_category_conn_check_count),
ANALYSEDB_VALUE_GAUGE(flow_category_iot_scada_count),
ANALYSEDB_VALUE_GAUGE(flow_category_virt_assistant_count),
ANALYSEDB_VALUE_GAUGE(flow_category_cybersecurity_count),
ANALYSEDB_VALUE_GAUGE(flow_category_adult_content_count),
ANALYSEDB_VALUE_GAUGE(flow_category_mining_count),
ANALYSEDB_VALUE_GAUGE(flow_category_malware_count),
ANALYSEDB_VALUE_GAUGE(flow_category_advertisment_count),
ANALYSEDB_VALUE_GAUGE(flow_category_banned_site_count),
ANALYSEDB_VALUE_GAUGE(flow_category_site_unavail_count),
ANALYSEDB_VALUE_GAUGE(flow_category_allowed_site_count),
ANALYSEDB_VALUE_GAUGE(flow_category_antimalware_count),
ANALYSEDB_VALUE_GAUGE(flow_category_crypto_currency_count),
ANALYSEDB_VALUE_GAUGE(flow_category_gambling_count),
ANALYSEDB_VALUE_GAUGE(flow_category_health_count),
ANALYSEDB_VALUE_GAUGE(flow_category_unknown_count));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_GAUGE(flow_confidence_by_port),
ANALYSEDB_VALUE_GAUGE(flow_confidence_dpi_partial),
ANALYSEDB_VALUE_GAUGE(flow_confidence_dpi_partial_cache),
ANALYSEDB_VALUE_GAUGE(flow_confidence_dpi_cache),
ANALYSEDB_VALUE_GAUGE(flow_confidence_dpi),
ANALYSEDB_VALUE_GAUGE(flow_confidence_nbpf),
ANALYSEDB_VALUE_GAUGE(flow_confidence_by_ip),
ANALYSEDB_VALUE_GAUGE(flow_confidence_dpi_aggressive),
ANALYSEDB_VALUE_GAUGE(flow_confidence_custom_rule),
ANALYSEDB_VALUE_GAUGE(flow_confidence_unknown));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT()
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_GAUGE(flow_severity_low),
ANALYSEDB_VALUE_GAUGE(flow_severity_medium),
ANALYSEDB_VALUE_GAUGE(flow_severity_high),
ANALYSEDB_VALUE_GAUGE(flow_severity_severe),
ANALYSEDB_VALUE_GAUGE(flow_severity_critical),
ANALYSEDB_VALUE_GAUGE(flow_severity_emergency),
ANALYSEDB_VALUE_GAUGE(flow_severity_unknown));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_GAUGE(flow_l3_ip4_count),
ANALYSEDB_VALUE_GAUGE(flow_l3_ip6_count),
ANALYSEDB_VALUE_GAUGE(flow_l3_other_count));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_GAUGE(flow_l4_tcp_count),
ANALYSEDB_VALUE_GAUGE(flow_l4_udp_count),
ANALYSEDB_VALUE_GAUGE(flow_l4_icmp_count),
ANALYSEDB_VALUE_GAUGE(flow_l4_other_count));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf,
siz,
ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT() ANALYSEDB_FORMAT(),
ANALYSEDB_VALUE_GAUGE(flow_active_count),
ANALYSEDB_VALUE_GAUGE(flow_detected_count),
ANALYSEDB_VALUE_GAUGE(flow_guessed_count),
ANALYSEDB_VALUE_GAUGE(flow_not_detected_count));
CHECK_SNPRINTF_RET(bytes);
bytes = snprintf(buf, siz, ANALYSEDB_FORMAT(), ANALYSEDB_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, "%llu,", (unsigned long long int)analysed_statistics.gauges[0].flow_risk_count[i]);
CHECK_SNPRINTF_RET(bytes);
}
buf[-1] = '\n';
struct timeval tval;
if (analysed_interval_ull != 0 && gettimeofday(&tval, NULL) == 0)
{
unsigned long long int sec = tval.tv_sec;
unsigned long long int usec = tval.tv_usec;
unsigned long long int timestamp = usec + sec * 1000 * 1000;
fprintf(stats_csv_fp, "%llu,%s", timestamp, output_buffer);
rc = 0;
}
else
{
fprintf(stats_csv_fp, "0,%s", output_buffer);
}
failure:
// reset all counters until the analysed timer is ready again
memset(&analysed_statistics.counters, 0, sizeof(analysed_statistics.counters));
ANALYSED_STATS_GAUGE_SUB(flow_state_info);
ANALYSED_STATS_GAUGE_SUB(flow_state_finished);
ANALYSED_STATS_GAUGE_SUB(flow_breed_safe_count);
ANALYSED_STATS_GAUGE_SUB(flow_breed_acceptable_count);
ANALYSED_STATS_GAUGE_SUB(flow_breed_fun_count);
ANALYSED_STATS_GAUGE_SUB(flow_breed_unsafe_count);
ANALYSED_STATS_GAUGE_SUB(flow_breed_potentially_dangerous_count);
ANALYSED_STATS_GAUGE_SUB(flow_breed_tracker_ads_count);
ANALYSED_STATS_GAUGE_SUB(flow_breed_dangerous_count);
ANALYSED_STATS_GAUGE_SUB(flow_breed_unrated_count);
ANALYSED_STATS_GAUGE_SUB(flow_breed_unknown_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_unspecified_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_media_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_vpn_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_email_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_data_transfer_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_web_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_social_network_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_download_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_game_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_chat_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_voip_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_database_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_remote_access_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_cloud_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_network_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_collaborative_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_rpc_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_streaming_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_system_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_software_update_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_music_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_video_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_shopping_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_productivity_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_file_sharing_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_conn_check_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_iot_scada_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_virt_assistant_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_cybersecurity_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_adult_content_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_mining_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_malware_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_advertisment_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_banned_site_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_site_unavail_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_allowed_site_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_antimalware_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_crypto_currency_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_gambling_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_health_count);
ANALYSED_STATS_GAUGE_SUB(flow_category_unknown_count);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_by_port);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_dpi_partial);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_dpi_partial_cache);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_dpi_cache);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_dpi);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_nbpf);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_by_ip);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_dpi_aggressive);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_custom_rule);
ANALYSED_STATS_GAUGE_SUB(flow_confidence_unknown);
ANALYSED_STATS_GAUGE_SUB(flow_severity_low);
ANALYSED_STATS_GAUGE_SUB(flow_severity_medium);
ANALYSED_STATS_GAUGE_SUB(flow_severity_high);
ANALYSED_STATS_GAUGE_SUB(flow_severity_severe);
ANALYSED_STATS_GAUGE_SUB(flow_severity_critical);
ANALYSED_STATS_GAUGE_SUB(flow_severity_emergency);
ANALYSED_STATS_GAUGE_SUB(flow_severity_unknown);
ANALYSED_STATS_GAUGE_SUB(flow_l3_ip4_count);
ANALYSED_STATS_GAUGE_SUB(flow_l3_ip6_count);
ANALYSED_STATS_GAUGE_SUB(flow_l3_other_count);
ANALYSED_STATS_GAUGE_SUB(flow_l4_tcp_count);
ANALYSED_STATS_GAUGE_SUB(flow_l4_udp_count);
ANALYSED_STATS_GAUGE_SUB(flow_l4_icmp_count);
ANALYSED_STATS_GAUGE_SUB(flow_l4_other_count);
ANALYSED_STATS_GAUGE_SUB(flow_active_count);
ANALYSED_STATS_GAUGE_SUB(flow_detected_count);
ANALYSED_STATS_GAUGE_SUB(flow_guessed_count);
ANALYSED_STATS_GAUGE_SUB(flow_not_detected_count);
for (size_t i = 0; i < NDPI_MAX_RISK - 1 /* NDPI_NO_RISK */; ++i)
{
ANALYSED_STATS_GAUGE_SUB(flow_risk_count[i]);
}
ANALYSED_STATS_GAUGE_SUB(flow_risk_unknown_count);
memset(&analysed_statistics.gauges[1], 0, sizeof(analysed_statistics.gauges[1]));
return rc;
}
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 == analysed_timerfd)
{
uint64_t expirations;
errno = 0;
if (read(analysed_timerfd, &expirations, sizeof(expirations)) != sizeof(expirations))
{
logger(1, "Could not read timer expirations: %s", strerror(errno));
return 1;
}
if (set_analysed_timer() != 0)
{
logger(1, "Could not set timer: %s", strerror(errno));
return 1;
}
if (write_global_flow_stats() != 0)
{
logger(1, "%s", "Could not write global/flow stats.");
return 1;
}
}
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;
}
int main(int argc, char ** argv)
{
int retval = 1;
int epollfd = -1;
init_logging("nDPIsrvd-analysed");
if (parse_options(argc, argv) != 0)
{
goto failure;
}
distributor = nDPIsrvd_socket_init(
0, 0, 0, (stats_csv_outfile != NULL ? sizeof(struct flow_user_data) : 0), analysed_json_callback, NULL, NULL);
if (distributor == NULL)
{
logger_early(1, "%s", "nDPIsrvd socket memory allocation failed!");
goto failure;
}
if (nDPIsrvd_setup_address(&distributor->address, serv_optarg) != 0)
{
logger_early(1, "%s: Could not parse address `%s'\n", argv[0], serv_optarg);
goto failure;
}
logger(0, "Recv buffer size: %u", NETWORK_BUFFER_MAX_SIZE);
logger(0, "Connecting to `%s'..", serv_optarg);
if (nDPIsrvd_connect(distributor) != CONNECT_OK)
{
logger_early(1, "nDPIsrvd socket connect to %s failed!", serv_optarg);
goto failure;
}
if (nDPIsrvd_set_nonblock(distributor) != 0)
{
logger_early(1, "nDPIsrvd set nonblock failed: %s", strerror(errno));
goto failure;
}
signal(SIGUSR1, sighandler);
signal(SIGUSR2, sighandler);
signal(SIGINT, sighandler);
signal(SIGTERM, sighandler);
signal(SIGPIPE, sighandler);
if (daemonize_with_pidfile(pidfile) != 0)
{
goto failure;
}
if (csv_outfile != NULL)
{
int ret = chmod_chown(csv_outfile, S_IRUSR | S_IWUSR | S_IRGRP, user, group);
if (ret != 0)
{
logger_early(1, "Could not chmod/chown `%s': %s", csv_outfile, strerror(ret));
return 1;
}
}
if (stats_csv_outfile != NULL)
{
int ret = chmod_chown(stats_csv_outfile, S_IRUSR | S_IWUSR | S_IRGRP, user, group);
if (ret != 0)
{
logger_early(1, "Could not chmod/chown `%s': %s", stats_csv_outfile, strerror(ret));
return 1;
}
}
errno = 0;
if (user != NULL && change_user_group(user, group, pidfile) != 0)
{
if (errno != 0)
{
logger_early(1, "Change user/group failed: %s", strerror(errno));
}
else
{
logger_early(1, "Change user/group failed.");
}
goto failure;
}
epollfd = epoll_create1(0);
if (epollfd < 0)
{
logger_early(1, "Error creating epoll: %s", strerror(errno));
goto failure;
}
if (stats_csv_fp != NULL)
{
if (create_analysed_timer() != 0)
{
logger_early(1, "Error creating timer: %s", strerror(errno));
goto failure;
}
{
struct epoll_event timer_event = {.data.fd = analysed_timerfd, .events = EPOLLIN};
if (epoll_ctl(epollfd, EPOLL_CTL_ADD, analysed_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 = distributor->fd, .events = EPOLLIN};
if (epoll_ctl(epollfd, EPOLL_CTL_ADD, distributor->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, distributor);
if (analysed_interval_ull == 0)
{
if (write_global_flow_stats() != 0)
{
logger(1, "%s", "Could not write global/flow stats on termination.");
}
}
failure:
nDPIsrvd_socket_free(&distributor);
daemonize_shutdown(pidfile);
shutdown_logging();
if (csv_fp != NULL)
{
fflush(csv_fp);
fclose(csv_fp);
}
if (stats_csv_fp != NULL)
{
fflush(stats_csv_fp);
fclose(stats_csv_fp);
}
return retval;
}