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	c7bf94e9f1
	
	
	
		
			
			* nDPIsrvd.h: support for O_NONBLOCK nDPIsrvd_socket Signed-off-by: lns <matzeton@googlemail.com>
		
			
				
	
	
		
			766 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			766 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| #include <errno.h>
 | |
| #include <signal.h>
 | |
| #include <stdio.h>
 | |
| #include <stdlib.h>
 | |
| #include <string.h>
 | |
| #include <syslog.h>
 | |
| #include <sys/epoll.h>
 | |
| #include <sys/timerfd.h>
 | |
| #include <unistd.h>
 | |
| 
 | |
| #include "nDPIsrvd.h"
 | |
| 
 | |
| #define DEFAULT_COLLECTD_EXEC_INST "exec-nDPIsrvd"
 | |
| 
 | |
| #define LOG(flags, format, ...)                                                                                        \
 | |
|     if (quiet == 0)                                                                                                    \
 | |
|     {                                                                                                                  \
 | |
|         fprintf(stderr, format, __VA_ARGS__);                                                                          \
 | |
|         fprintf(stderr, "%s", "\n");                                                                                   \
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|     }                                                                                                                  \
 | |
|     else                                                                                                               \
 | |
|     {                                                                                                                  \
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|         syslog(flags, format, __VA_ARGS__);                                                                            \
 | |
|     }
 | |
| 
 | |
| static int main_thread_shutdown = 0;
 | |
| static int collectd_timerfd = -1;
 | |
| static pid_t collectd_pid;
 | |
| 
 | |
| 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 int quiet = 0;
 | |
| 
 | |
| static struct
 | |
| {
 | |
|     uint64_t flow_new_count;
 | |
|     uint64_t flow_end_count;
 | |
|     uint64_t flow_idle_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 flow_total_bytes;
 | |
|     uint64_t flow_risky_count;
 | |
| 
 | |
|     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_dangerous_count;
 | |
|     uint64_t flow_breed_unrated_count;
 | |
|     uint64_t flow_breed_unknown_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_mining_count;
 | |
|     uint64_t flow_category_malware_count;
 | |
|     uint64_t flow_category_advertisment_count;
 | |
|     uint64_t flow_category_other_count;
 | |
|     uint64_t flow_category_unknown_count;
 | |
| 
 | |
|     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;
 | |
| } collectd_statistics = {};
 | |
| 
 | |
| #ifdef ENABLE_MEMORY_PROFILING
 | |
| void nDPIsrvd_memprof_log(char const * const format, ...)
 | |
| {
 | |
|     va_list ap;
 | |
| 
 | |
|     va_start(ap, format);
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|     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)
 | |
| {
 | |
|     LOG(LOG_DAEMON | LOG_NOTICE, "Received SIGNAL %d", signum);
 | |
| 
 | |
|     if (main_thread_shutdown == 0)
 | |
|     {
 | |
|         LOG(LOG_DAEMON | LOG_NOTICE, "%s", "Shutting down ..");
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|         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 "
 | |
|         "[-s host] [-c hostname] [-n collectd-instance-name] [-i interval] [-q]\n\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"
 | |
|         "\t-q\tDo not print anything except collectd statistics.\n"
 | |
|         "\t  \tAutomatically enabled if environment variables mentioned above are set.\n";
 | |
| 
 | |
|     while ((opt = getopt(argc, argv, "hs:c:n:i:q")) != -1)
 | |
|     {
 | |
|         switch (opt)
 | |
|         {
 | |
|             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;
 | |
|             case 'q':
 | |
|                 quiet = 1;
 | |
|                 break;
 | |
|             default:
 | |
|                 LOG(LOG_DAEMON | LOG_ERR, 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");
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     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");
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (str_value_to_ull(collectd_interval, &collectd_interval_ull) != CONVERSION_OK)
 | |
|     {
 | |
|         LOG(LOG_DAEMON | LOG_ERR, "Collectd interval `%s' is not a valid number", collectd_interval);
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|         return 1;
 | |
|     }
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| 
 | |
|     if (nDPIsrvd_setup_address(&sock->address, serv_optarg) != 0)
 | |
|     {
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|         LOG(LOG_DAEMON | LOG_ERR, "Could not parse address `%s'", serv_optarg);
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|         return 1;
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|     }
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| 
 | |
|     if (optind < argc)
 | |
|     {
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|         LOG(LOG_DAEMON | LOG_ERR, "%s", "Unexpected argument after options");
 | |
|         if (quiet == 0)
 | |
|         {
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|             LOG(0, "%s", "");
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|             LOG(0, usage, argv[0]);
 | |
|         }
 | |
|         return 1;
 | |
|     }
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| #define COLLECTD_PUTVAL_N_FORMAT(name) "PUTVAL %s/%s/" #name " interval=%llu %llu:%llu\n"
 | |
| #define COLLECTD_PUTVAL_N(value)                                                                                       \
 | |
|     collectd_hostname, instance_name, collectd_interval_ull, (unsigned long long int)now,                              \
 | |
|         (unsigned long long int)collectd_statistics.value
 | |
| static void print_collectd_exec_output(void)
 | |
| {
 | |
|     time_t now = time(NULL);
 | |
| 
 | |
|     printf(COLLECTD_PUTVAL_N_FORMAT(flow_new_count) COLLECTD_PUTVAL_N_FORMAT(flow_end_count)
 | |
|                COLLECTD_PUTVAL_N_FORMAT(flow_idle_count) COLLECTD_PUTVAL_N_FORMAT(flow_guessed_count)
 | |
|                    COLLECTD_PUTVAL_N_FORMAT(flow_detected_count) COLLECTD_PUTVAL_N_FORMAT(flow_detection_update_count)
 | |
|                        COLLECTD_PUTVAL_N_FORMAT(flow_not_detected_count)
 | |
|                            COLLECTD_PUTVAL_N_FORMAT(flow_total_bytes) COLLECTD_PUTVAL_N_FORMAT(flow_risky_count),
 | |
| 
 | |
|            COLLECTD_PUTVAL_N(flow_new_count),
 | |
|            COLLECTD_PUTVAL_N(flow_end_count),
 | |
|            COLLECTD_PUTVAL_N(flow_idle_count),
 | |
|            COLLECTD_PUTVAL_N(flow_guessed_count),
 | |
|            COLLECTD_PUTVAL_N(flow_detected_count),
 | |
|            COLLECTD_PUTVAL_N(flow_detection_update_count),
 | |
|            COLLECTD_PUTVAL_N(flow_not_detected_count),
 | |
|            COLLECTD_PUTVAL_N(flow_total_bytes),
 | |
|            COLLECTD_PUTVAL_N(flow_risky_count));
 | |
| 
 | |
|     printf(COLLECTD_PUTVAL_N_FORMAT(flow_breed_safe_count) COLLECTD_PUTVAL_N_FORMAT(flow_breed_acceptable_count)
 | |
|                COLLECTD_PUTVAL_N_FORMAT(flow_breed_fun_count) COLLECTD_PUTVAL_N_FORMAT(flow_breed_unsafe_count)
 | |
|                    COLLECTD_PUTVAL_N_FORMAT(flow_breed_potentially_dangerous_count)
 | |
|                        COLLECTD_PUTVAL_N_FORMAT(flow_breed_dangerous_count)
 | |
|                            COLLECTD_PUTVAL_N_FORMAT(flow_breed_unrated_count)
 | |
|                                COLLECTD_PUTVAL_N_FORMAT(flow_breed_unknown_count),
 | |
| 
 | |
|            COLLECTD_PUTVAL_N(flow_breed_safe_count),
 | |
|            COLLECTD_PUTVAL_N(flow_breed_acceptable_count),
 | |
|            COLLECTD_PUTVAL_N(flow_breed_fun_count),
 | |
|            COLLECTD_PUTVAL_N(flow_breed_unsafe_count),
 | |
|            COLLECTD_PUTVAL_N(flow_breed_potentially_dangerous_count),
 | |
|            COLLECTD_PUTVAL_N(flow_breed_dangerous_count),
 | |
|            COLLECTD_PUTVAL_N(flow_breed_unrated_count),
 | |
|            COLLECTD_PUTVAL_N(flow_breed_unknown_count));
 | |
| 
 | |
|     printf(
 | |
|         COLLECTD_PUTVAL_N_FORMAT(flow_category_media_count) COLLECTD_PUTVAL_N_FORMAT(
 | |
|             flow_category_vpn_count) COLLECTD_PUTVAL_N_FORMAT(flow_category_email_count)
 | |
|             COLLECTD_PUTVAL_N_FORMAT(flow_category_data_transfer_count) COLLECTD_PUTVAL_N_FORMAT(
 | |
|                 flow_category_web_count) COLLECTD_PUTVAL_N_FORMAT(flow_category_social_network_count)
 | |
|                 COLLECTD_PUTVAL_N_FORMAT(flow_category_download_count) COLLECTD_PUTVAL_N_FORMAT(
 | |
|                     flow_category_game_count) COLLECTD_PUTVAL_N_FORMAT(flow_category_chat_count)
 | |
|                     COLLECTD_PUTVAL_N_FORMAT(flow_category_voip_count) COLLECTD_PUTVAL_N_FORMAT(
 | |
|                         flow_category_database_count) COLLECTD_PUTVAL_N_FORMAT(flow_category_remote_access_count)
 | |
|                         COLLECTD_PUTVAL_N_FORMAT(flow_category_cloud_count) COLLECTD_PUTVAL_N_FORMAT(
 | |
|                             flow_category_network_count) COLLECTD_PUTVAL_N_FORMAT(flow_category_collaborative_count)
 | |
|                             COLLECTD_PUTVAL_N_FORMAT(flow_category_rpc_count) COLLECTD_PUTVAL_N_FORMAT(
 | |
|                                 flow_category_streaming_count) COLLECTD_PUTVAL_N_FORMAT(flow_category_system_count)
 | |
|                                 COLLECTD_PUTVAL_N_FORMAT(flow_category_software_update_count) COLLECTD_PUTVAL_N_FORMAT(
 | |
|                                     flow_category_music_count) COLLECTD_PUTVAL_N_FORMAT(flow_category_video_count)
 | |
|                                     COLLECTD_PUTVAL_N_FORMAT(flow_category_shopping_count)
 | |
|                                         COLLECTD_PUTVAL_N_FORMAT(flow_category_productivity_count)
 | |
|                                             COLLECTD_PUTVAL_N_FORMAT(flow_category_file_sharing_count)
 | |
|                                                 COLLECTD_PUTVAL_N_FORMAT(flow_category_mining_count)
 | |
|                                                     COLLECTD_PUTVAL_N_FORMAT(flow_category_malware_count)
 | |
|                                                         COLLECTD_PUTVAL_N_FORMAT(flow_category_advertisment_count)
 | |
|                                                             COLLECTD_PUTVAL_N_FORMAT(flow_category_other_count)
 | |
|                                                                 COLLECTD_PUTVAL_N_FORMAT(flow_category_unknown_count),
 | |
| 
 | |
|         COLLECTD_PUTVAL_N(flow_category_media_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_vpn_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_email_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_data_transfer_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_web_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_social_network_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_download_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_game_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_chat_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_voip_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_database_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_remote_access_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_cloud_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_network_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_collaborative_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_rpc_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_streaming_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_system_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_software_update_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_music_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_video_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_shopping_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_productivity_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_file_sharing_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_mining_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_malware_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_advertisment_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_other_count),
 | |
|         COLLECTD_PUTVAL_N(flow_category_unknown_count));
 | |
| 
 | |
|     printf(COLLECTD_PUTVAL_N_FORMAT(flow_l3_ip4_count) COLLECTD_PUTVAL_N_FORMAT(flow_l3_ip6_count)
 | |
|                COLLECTD_PUTVAL_N_FORMAT(flow_l3_other_count) COLLECTD_PUTVAL_N_FORMAT(flow_l4_tcp_count)
 | |
|                    COLLECTD_PUTVAL_N_FORMAT(flow_l4_udp_count) COLLECTD_PUTVAL_N_FORMAT(flow_l4_icmp_count)
 | |
|                        COLLECTD_PUTVAL_N_FORMAT(flow_l4_other_count),
 | |
| 
 | |
|            COLLECTD_PUTVAL_N(flow_l3_ip4_count),
 | |
|            COLLECTD_PUTVAL_N(flow_l3_ip6_count),
 | |
|            COLLECTD_PUTVAL_N(flow_l3_other_count),
 | |
|            COLLECTD_PUTVAL_N(flow_l4_tcp_count),
 | |
|            COLLECTD_PUTVAL_N(flow_l4_udp_count),
 | |
|            COLLECTD_PUTVAL_N(flow_l4_icmp_count),
 | |
|            COLLECTD_PUTVAL_N(flow_l4_other_count));
 | |
| 
 | |
|     memset(&collectd_statistics, 0, sizeof(collectd_statistics));
 | |
| }
 | |
| 
 | |
| 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)
 | |
|             {
 | |
|                 LOG(LOG_DAEMON | LOG_ERR, "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)
 | |
|                 {
 | |
|                     LOG(LOG_DAEMON | LOG_ERR, "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))
 | |
|                 {
 | |
|                     LOG(LOG_DAEMON | LOG_ERR, "Could not read timer expirations: %s", strerror(errno));
 | |
|                     return 1;
 | |
|                 }
 | |
|                 if (set_collectd_timer() != 0)
 | |
|                 {
 | |
|                     LOG(LOG_DAEMON | LOG_ERR, "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)
 | |
|                 {
 | |
|                     LOG(LOG_DAEMON | LOG_ERR, "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)
 | |
|                 {
 | |
|                     LOG(LOG_DAEMON | LOG_ERR, "nDPIsrvd parse failed with: %s", nDPIsrvd_enum_to_string(parse_ret));
 | |
|                     return 1;
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static uint64_t get_total_flow_bytes(struct nDPIsrvd_socket * const sock)
 | |
| {
 | |
|     nDPIsrvd_ull total_bytes_ull = 0;
 | |
| 
 | |
|     if (TOKEN_VALUE_TO_ULL(TOKEN_GET_SZ(sock, "flow_tot_l4_payload_len"), &total_bytes_ull) == CONVERSION_OK)
 | |
|     {
 | |
|         return total_bytes_ull;
 | |
|     }
 | |
|     else
 | |
|     {
 | |
|         return 0;
 | |
|     }
 | |
| }
 | |
| 
 | |
| static enum nDPIsrvd_callback_return captured_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)sock;
 | |
|     (void)instance;
 | |
|     (void)thread_data;
 | |
|     (void)flow;
 | |
| 
 | |
|     struct nDPIsrvd_json_token const * const flow_event_name = TOKEN_GET_SZ(sock, "flow_event_name");
 | |
| 
 | |
|     if (TOKEN_VALUE_EQUALS_SZ(flow_event_name, "new") != 0)
 | |
|     {
 | |
|         collectd_statistics.flow_new_count++;
 | |
| 
 | |
|         struct nDPIsrvd_json_token const * const l3_proto = TOKEN_GET_SZ(sock, "l3_proto");
 | |
|         if (TOKEN_VALUE_EQUALS_SZ(l3_proto, "ip4") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_l3_ip4_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(l3_proto, "ip6") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_l3_ip6_count++;
 | |
|         }
 | |
|         else if (l3_proto != NULL)
 | |
|         {
 | |
|             collectd_statistics.flow_l3_other_count++;
 | |
|         }
 | |
| 
 | |
|         struct nDPIsrvd_json_token const * const l4_proto = TOKEN_GET_SZ(sock, "l4_proto");
 | |
|         if (TOKEN_VALUE_EQUALS_SZ(l4_proto, "tcp") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_l4_tcp_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(l4_proto, "udp") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_l4_udp_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(l4_proto, "icmp") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_l4_icmp_count++;
 | |
|         }
 | |
|         else if (l4_proto != NULL)
 | |
|         {
 | |
|             collectd_statistics.flow_l4_other_count++;
 | |
|         }
 | |
|     }
 | |
|     else if (TOKEN_VALUE_EQUALS_SZ(flow_event_name, "end") != 0)
 | |
|     {
 | |
|         collectd_statistics.flow_end_count++;
 | |
|         collectd_statistics.flow_total_bytes += get_total_flow_bytes(sock);
 | |
|     }
 | |
|     else if (TOKEN_VALUE_EQUALS_SZ(flow_event_name, "idle") != 0)
 | |
|     {
 | |
|         collectd_statistics.flow_idle_count++;
 | |
|         collectd_statistics.flow_total_bytes += get_total_flow_bytes(sock);
 | |
|     }
 | |
|     else if (TOKEN_VALUE_EQUALS_SZ(flow_event_name, "guessed") != 0)
 | |
|     {
 | |
|         collectd_statistics.flow_guessed_count++;
 | |
|     }
 | |
|     else if (TOKEN_VALUE_EQUALS_SZ(flow_event_name, "detected") != 0)
 | |
|     {
 | |
|         collectd_statistics.flow_detected_count++;
 | |
| 
 | |
|         if (TOKEN_GET_SZ(sock, "flow_risk") != NULL)
 | |
|         {
 | |
|             collectd_statistics.flow_risky_count++;
 | |
|         }
 | |
| 
 | |
|         struct nDPIsrvd_json_token const * const breed = TOKEN_GET_SZ(sock, "breed");
 | |
|         if (TOKEN_VALUE_EQUALS_SZ(breed, "Safe") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_breed_safe_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(breed, "Acceptable") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_breed_acceptable_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(breed, "Fun") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_breed_fun_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(breed, "Unsafe") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_breed_unsafe_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(breed, "Potentially Dangerous") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_breed_potentially_dangerous_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(breed, "Dangerous") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_breed_dangerous_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(breed, "Unrated") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_breed_unrated_count++;
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             collectd_statistics.flow_breed_unknown_count++;
 | |
|         }
 | |
| 
 | |
|         struct nDPIsrvd_json_token const * const category = TOKEN_GET_SZ(sock, "category");
 | |
|         if (TOKEN_VALUE_EQUALS_SZ(category, "Media") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_media_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "VPN") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_vpn_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Email") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_email_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "DataTransfer") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_data_transfer_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Web") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_web_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "SocialNetwork") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_social_network_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Download-FileTransfer-FileSharing") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_download_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Game") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_game_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Chat") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_chat_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "VoIP") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_voip_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Database") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_database_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "RemoteAccess") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_remote_access_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Cloud") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_cloud_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Network") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_network_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Collaborative") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_collaborative_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "RPC") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_rpc_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Streaming") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_streaming_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "System") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_system_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "SoftwareUpdate") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_software_update_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Music") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_music_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Video") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_video_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Shopping") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_shopping_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Productivity") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_productivity_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "FileSharing") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_file_sharing_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Mining") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_mining_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Malware") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_malware_count++;
 | |
|         }
 | |
|         else if (TOKEN_VALUE_EQUALS_SZ(category, "Advertisement") != 0)
 | |
|         {
 | |
|             collectd_statistics.flow_category_advertisment_count++;
 | |
|         }
 | |
|         else if (category != NULL)
 | |
|         {
 | |
|             collectd_statistics.flow_category_other_count++;
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             collectd_statistics.flow_category_unknown_count++;
 | |
|         }
 | |
|     }
 | |
|     else if (TOKEN_VALUE_EQUALS_SZ(flow_event_name, "detection-update") != 0)
 | |
|     {
 | |
|         collectd_statistics.flow_detection_update_count++;
 | |
|     }
 | |
|     else if (TOKEN_VALUE_EQUALS_SZ(flow_event_name, "not-detected") != 0)
 | |
|     {
 | |
|         collectd_statistics.flow_not_detected_count++;
 | |
|     }
 | |
| 
 | |
|     return CALLBACK_OK;
 | |
| }
 | |
| 
 | |
| int main(int argc, char ** argv)
 | |
| {
 | |
|     int retval = 1;
 | |
| 
 | |
|     openlog("nDPIsrvd-collectd", LOG_CONS, LOG_DAEMON);
 | |
| 
 | |
|     struct nDPIsrvd_socket * sock = nDPIsrvd_socket_init(0, 0, 0, 0, captured_json_callback, NULL, NULL);
 | |
|     if (sock == NULL)
 | |
|     {
 | |
|         LOG(LOG_DAEMON | LOG_ERR, "%s", "nDPIsrvd socket memory allocation failed!");
 | |
|         return 1;
 | |
|     }
 | |
| 
 | |
|     if (parse_options(argc, argv, sock) != 0)
 | |
|     {
 | |
|         return 1;
 | |
|     }
 | |
| 
 | |
|     if (getenv("COLLECTD_HOSTNAME") == NULL && getenv("COLLECTD_INTERVAL") == NULL)
 | |
|     {
 | |
|         LOG(LOG_DAEMON | LOG_NOTICE, "Recv buffer size: %u", NETWORK_BUFFER_MAX_SIZE);
 | |
|         LOG(LOG_DAEMON | LOG_NOTICE, "Connecting to `%s'..", serv_optarg);
 | |
|     }
 | |
|     else
 | |
|     {
 | |
|         quiet = 1;
 | |
|         LOG(LOG_DAEMON | LOG_NOTICE, "Collectd hostname: %s", getenv("COLLECTD_HOSTNAME"));
 | |
|         LOG(LOG_DAEMON | LOG_NOTICE, "Collectd interval: %llu", collectd_interval_ull);
 | |
|     }
 | |
| 
 | |
|     enum nDPIsrvd_connect_return connect_ret = nDPIsrvd_connect(sock);
 | |
|     if (connect_ret != CONNECT_OK)
 | |
|     {
 | |
|         LOG(LOG_DAEMON | LOG_ERR, "nDPIsrvd socket connect to %s failed!", serv_optarg);
 | |
|         nDPIsrvd_socket_free(&sock);
 | |
|         return 1;
 | |
|     }
 | |
| 
 | |
|     if (nDPIsrvd_set_nonblock(sock) != 0)
 | |
|     {
 | |
|         LOG(LOG_DAEMON | LOG_ERR, "nDPIsrvd set nonblock failed: %s", strerror(errno));
 | |
|         nDPIsrvd_socket_free(&sock);
 | |
|         return 1;
 | |
|     }
 | |
| 
 | |
|     signal(SIGINT, sighandler);
 | |
|     signal(SIGTERM, sighandler);
 | |
|     signal(SIGPIPE, SIG_IGN);
 | |
| 
 | |
|     collectd_pid = getppid();
 | |
| 
 | |
|     int epollfd = epoll_create1(0);
 | |
|     if (epollfd < 0)
 | |
|     {
 | |
|         LOG(LOG_DAEMON | LOG_ERR, "Error creating epoll: %s", strerror(errno));
 | |
|         return 1;
 | |
|     }
 | |
| 
 | |
|     if (create_collectd_timer() != 0)
 | |
|     {
 | |
|         LOG(LOG_DAEMON | LOG_ERR, "Error creating timer: %s", strerror(errno));
 | |
|         return 1;
 | |
|     }
 | |
| 
 | |
|     {
 | |
|         struct epoll_event timer_event = {.data.fd = collectd_timerfd, .events = EPOLLIN};
 | |
|         if (epoll_ctl(epollfd, EPOLL_CTL_ADD, collectd_timerfd, &timer_event) < 0)
 | |
|         {
 | |
|             LOG(LOG_DAEMON | LOG_ERR, "Error adding JSON fd to epoll: %s", strerror(errno));
 | |
|             return 1;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     {
 | |
|         struct epoll_event socket_event = {.data.fd = sock->fd, .events = EPOLLIN};
 | |
|         if (epoll_ctl(epollfd, EPOLL_CTL_ADD, sock->fd, &socket_event) < 0)
 | |
|         {
 | |
|             LOG(LOG_DAEMON | LOG_ERR, "Error adding nDPIsrvd socket fd to epoll: %s", strerror(errno));
 | |
|             return 1;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     LOG(LOG_DAEMON | LOG_NOTICE, "%s", "Initialization succeeded.");
 | |
|     retval = mainloop(epollfd, sock);
 | |
| 
 | |
|     nDPIsrvd_socket_free(&sock);
 | |
|     close(collectd_timerfd);
 | |
|     close(epollfd);
 | |
|     closelog();
 | |
| 
 | |
|     return retval;
 | |
| }
 |