#include #include #include #include extern void nDPIsrvd_memprof_log(char const * const format, ...); extern void nDPIsrvd_memprof_log_alloc(size_t alloc_size); extern void nDPIsrvd_memprof_log_free(size_t free_size); // #define VERBOSE_MEMORY_PROFILING 1 #define NO_MAIN 1 #include "utils.c" #include "nio.c" #include "nDPIsrvd.c" #include "nDPId.c" enum { PIPE_nDPId = 1, /* nDPId mock pipefd array index */ PIPE_nDPIsrvd = 0, /* nDPIsrvd mock pipefd array index */ PIPE_TEST_WRITE = 1, /* Distributor (data from nDPIsrvd) write */ PIPE_TEST_READ = 0, /* Distributor (do some validation tests) read */ PIPE_BUFFER_WRITE = 1, /* Distributor (data from nDPIsrvd, buffered json lines) write */ PIPE_BUFFER_READ = 0, /* Distributor (do some validation tests, buffered json lines) read */ PIPE_NULL_WRITE = 1, /* Distributor (data from nDPIsrvd) write */ PIPE_NULL_READ = 0, /* Distributor (print to stdout) read */ PIPE_ARPA_WRITE = 1, /* Distributor (data from nDPIsrvd) write */ PIPE_ARPA_READ = 0, /* Distributor (IP mockup) read */ PIPE_FDS = 2, MAX_REMOTE_DESCRIPTORS = 5 /* mock pipefd's + 2 * distributor pipefd's */ }; struct thread_return_value { int val; }; struct nDPId_return_value { struct thread_return_value thread_return_value; size_t thread_index; unsigned long long int packets_captured; unsigned long long int packets_processed; unsigned long long int total_skipped_flows; unsigned long long int total_l4_payload_len; unsigned long long int not_detected_flow_protocols; unsigned long long int guessed_flow_protocols; unsigned long long int detected_flow_protocols; unsigned long long int flow_detection_updates; unsigned long long int flow_updates; unsigned long long int total_active_flows; unsigned long long int total_idle_flows; unsigned long long int cur_active_flows; unsigned long long int cur_idle_flows; #ifdef ENABLE_ZLIB unsigned long long int total_compressions; unsigned long long int total_compression_diff; unsigned long long int current_compression_diff; #endif unsigned long long int total_events_serialized; }; struct distributor_instance_user_data { unsigned long long int flow_cleanup_count; unsigned long long int daemon_event_count; }; struct distributor_thread_user_data { unsigned long long int flow_new_count; unsigned long long int flow_end_count; unsigned long long int flow_idle_count; unsigned long long int daemon_event_count; }; struct distributor_global_user_data { unsigned long long int total_packets_processed; unsigned long long int total_l4_payload_len; unsigned long long int total_events_deserialized; unsigned long long int total_events_serialized; unsigned long long int total_flow_timeouts; unsigned long long int flow_new_count; unsigned long long int flow_end_count; unsigned long long int flow_idle_count; unsigned long long int flow_detected_count; unsigned long long int flow_guessed_count; unsigned long long int flow_not_detected_count; unsigned long long int flow_detection_update_count; unsigned long long int flow_update_count; unsigned long long int shutdown_events; unsigned long long int json_message_len_min; unsigned long long int json_message_len_max; double json_message_len_avg; unsigned long long int cur_active_flows; unsigned long long int cur_idle_flows; struct distributor_instance_user_data instance_user_data; struct distributor_thread_user_data thread_user_data; int flow_cleanup_error; // please keep this struct at the end struct { int do_hash_checks; } options; } __attribute__((__packed__)); struct distributor_flow_user_data { unsigned long long int total_packets_processed; unsigned long long int flow_total_l4_data_len; uint8_t is_flow_timedout; }; struct distributor_return_value { struct thread_return_value thread_return_value; struct distributor_global_user_data stats; }; #define TC_INIT(initial, wanted) \ { \ .mutex = PTHREAD_MUTEX_INITIALIZER, .condition = PTHREAD_COND_INITIALIZER, .value = initial, \ .wanted_value = wanted \ } struct thread_condition { pthread_mutex_t mutex; pthread_cond_t condition; int value; int wanted_value; }; static int mock_pipefds[PIPE_FDS] = {}; static int mock_testfds[PIPE_FDS] = {}; static int mock_bufffds[PIPE_FDS] = {}; static int mock_nullfds[PIPE_FDS] = {}; static int mock_arpafds[PIPE_FDS] = {}; static struct thread_condition start_condition = TC_INIT(3, 0); #ifdef VERBOSE_MEMORY_PROFILING static pthread_mutex_t log_mutex = PTHREAD_MUTEX_INITIALIZER; #endif static pthread_mutex_t mem_mutex = PTHREAD_MUTEX_INITIALIZER; // required; memory wrappers are used from two threads // (distributor and nDPIsrvd) static unsigned long long int nDPIsrvd_alloc_count = 0; static unsigned long long int nDPIsrvd_alloc_bytes = 0; static unsigned long long int nDPIsrvd_free_count = 0; static unsigned long long int nDPIsrvd_free_bytes = 0; #define THREAD_ERROR(thread_arg) \ do \ { \ ((struct thread_return_value *)thread_arg)->val = (errno != 0 ? errno : 1); \ } while (0) #define THREAD_ERROR_GOTO(thread_arg) \ do \ { \ THREAD_ERROR(thread_arg); \ goto error; \ } while (0) void nDPIsrvd_memprof_log(char const * const format, ...) { #ifdef VERBOSE_MEMORY_PROFILING int logbuf_used, logbuf_used_tmp; char logbuf[BUFSIZ]; va_list ap; va_start(ap, format); pthread_mutex_lock(&log_mutex); logbuf_used = snprintf(logbuf, sizeof(logbuf), "%s", "nDPIsrvd MemoryProfiler: "); if (logbuf_used > 0) { logbuf_used_tmp = vsnprintf(logbuf + logbuf_used, sizeof(logbuf) - logbuf_used, format, ap); if (logbuf_used_tmp > 0) { logbuf_used += logbuf_used_tmp; } } fprintf(stderr, "%s\n", logbuf); pthread_mutex_unlock(&log_mutex); va_end(ap); #else (void)format; #endif } void nDPIsrvd_memprof_log_alloc(size_t alloc_size) { unsigned long alloc_count; // nDPIsrvd.h is used by client applications and nDPIsrvd (two threads!) pthread_mutex_lock(&mem_mutex); nDPIsrvd_alloc_count++; nDPIsrvd_alloc_bytes += alloc_size; alloc_count = nDPIsrvd_alloc_count; pthread_mutex_unlock(&mem_mutex); nDPIsrvd_memprof_log("nDPIsrvd.h: malloc #%llu, %llu bytes", alloc_count, alloc_size); } void nDPIsrvd_memprof_log_free(size_t free_size) { unsigned long free_count; // nDPIsrvd.h is used by client applications and nDPIsrvd (two threads!) pthread_mutex_lock(&mem_mutex); nDPIsrvd_free_count++; nDPIsrvd_free_bytes += free_size; free_count = nDPIsrvd_free_count; pthread_mutex_unlock(&mem_mutex); nDPIsrvd_memprof_log("nDPIsrvd.h: free #%llu, %llu bytes", free_count, free_size); } static int thread_wait(struct thread_condition * const tc) { int ret = 0; ret |= (pthread_mutex_lock(&tc->mutex) << 16); while (tc->value > tc->wanted_value) { ret |= (pthread_cond_wait(&tc->condition, &tc->mutex) << 8); } ret |= (pthread_mutex_unlock(&tc->mutex)); return ret; } static int thread_block_signals() { sigset_t blocked_signals; sigfillset(&blocked_signals); return pthread_sigmask(SIG_BLOCK, &blocked_signals, NULL); } static int thread_signal(struct thread_condition * const tc) { int ret = 0; ret |= (pthread_mutex_lock(&tc->mutex) << 16); if (tc->value > tc->wanted_value) { tc->value--; } if (tc->value == tc->wanted_value) { ret |= (pthread_cond_broadcast(&tc->condition) << 8); } ret |= (pthread_mutex_unlock(&tc->mutex)); return ret; } static int setup_pipe(int pipefd[PIPE_FDS]) { if (pipe(pipefd) != 0) { return -1; } if (fcntl_add_flags(pipefd[0], O_NONBLOCK) != 0) { return -1; } if (fcntl_add_flags(pipefd[1], O_NONBLOCK) != 0) { return -1; } return 0; } static void * nDPIsrvd_mainloop_thread(void * const arg) { int nDPIsrvd_distributor_disconnects = 0; int const nDPIsrvd_distributor_expected_disconnects = 5; struct nio io; struct remote_desc * mock_json_desc = NULL; struct remote_desc * mock_test_desc = NULL; struct remote_desc * mock_buff_desc = NULL; struct remote_desc * mock_null_desc = NULL; struct remote_desc * mock_arpa_desc = NULL; logger(0, "nDPIsrvd thread started, init.."); if (thread_block_signals() != 0) { logger(1, "nDPIsrvd block signals failed: %s", strerror(errno)); } nio_init(&io); #ifdef ENABLE_EPOLL if (nio_use_epoll(&io, 32) != NIO_SUCCESS) #else if (nio_use_poll(&io, nDPIsrvd_MAX_REMOTE_DESCRIPTORS) != NIO_SUCCESS) #endif { logger(1, "%s", "Error creating nDPIsrvd poll/epoll event I/O"); THREAD_ERROR_GOTO(arg); } mock_json_desc = get_remote_descriptor(COLLECTOR_UN, mock_pipefds[PIPE_nDPIsrvd], NETWORK_BUFFER_MAX_SIZE); if (mock_json_desc == NULL) { logger(1, "%s", "nDPIsrvd could not acquire remote descriptor (Collector)"); THREAD_ERROR_GOTO(arg); } mock_test_desc = get_remote_descriptor(DISTRIBUTOR_UN, mock_testfds[PIPE_TEST_WRITE], NETWORK_BUFFER_MAX_SIZE / 4); if (mock_test_desc == NULL) { logger(1, "%s", "nDPIsrvd could not acquire remote descriptor (TEST Distributor)"); THREAD_ERROR_GOTO(arg); } mock_buff_desc = get_remote_descriptor(DISTRIBUTOR_UN, mock_bufffds[PIPE_BUFFER_WRITE], 8); if (mock_buff_desc == NULL) { logger(1, "%s", "nDPIsrvd could not acquire remote descriptor (BUFFER Distributor)"); THREAD_ERROR_GOTO(arg); } mock_null_desc = get_remote_descriptor(DISTRIBUTOR_UN, mock_nullfds[PIPE_NULL_WRITE], NETWORK_BUFFER_MAX_SIZE); if (mock_null_desc == NULL) { logger(1, "%s", "nDPIsrvd could not acquire remote descriptor (NULL Distributor)"); THREAD_ERROR_GOTO(arg); } mock_arpa_desc = get_remote_descriptor(DISTRIBUTOR_IN, mock_arpafds[PIPE_ARPA_WRITE], NETWORK_BUFFER_MAX_SIZE / 8); if (mock_arpa_desc == NULL) { logger(1, "%s", "nDPIsrvd could not acquire remote descriptor (ARPA Distributor)"); THREAD_ERROR_GOTO(arg); } strncpy(mock_arpa_desc->event_distributor_in.peer_addr, "arpa-mockup", sizeof(mock_arpa_desc->event_distributor_in.peer_addr)); mock_arpa_desc->event_distributor_in.peer.sin_port = 0; errno = 0; if (add_in_event(&io, mock_json_desc) != 0 || add_in_event(&io, mock_test_desc) != 0 || add_in_event(&io, mock_buff_desc) != 0 || add_in_event(&io, mock_null_desc) != 0 || add_in_event(&io, mock_arpa_desc) != 0) { logger(1, "%s", "nDPIsrvd add input event failed"); THREAD_ERROR_GOTO(arg); } logger(0, "nDPIsrvd thread init done"); thread_signal(&start_condition); thread_wait(&start_condition); while (nDPIsrvd_distributor_disconnects < nDPIsrvd_distributor_expected_disconnects) { if (nio_run(&io, -1) != NIO_SUCCESS) { logger(1, "nDPIsrvd event I/O returned: %s", strerror(errno)); THREAD_ERROR_GOTO(arg); } int nready = nio_get_nready(&io); for (int i = 0; i < nready; i++) { struct remote_desc * remote = (struct remote_desc *)nio_get_ptr(&io, i); if (remote != mock_json_desc && remote != mock_test_desc && remote != mock_buff_desc && remote != mock_null_desc && remote != mock_arpa_desc) { logger(1, "nDPIsrvd epoll returned unexpected event data: %p", remote); THREAD_ERROR_GOTO(arg); } if (nio_has_error(&io, i) == NIO_SUCCESS) { char const * remote_desc_name; if (remote == mock_json_desc) { remote_desc_name = "Mock JSON"; do { if (mock_test_desc->fd >= 0) drain_write_buffers_blocking(mock_test_desc); if (mock_buff_desc->fd >= 0) drain_write_buffers_blocking(mock_buff_desc); if (mock_null_desc->fd >= 0) drain_write_buffers_blocking(mock_null_desc); if (mock_arpa_desc->fd >= 0) drain_write_buffers_blocking(mock_arpa_desc); } while (handle_data_event(&io, i) == 0); } else if (remote == mock_test_desc) { remote_desc_name = "Mock Test"; } else if (remote == mock_buff_desc) { remote_desc_name = "Mock Buffer"; } else if (remote == mock_null_desc) { remote_desc_name = "Mock NULL"; } else if (remote == mock_arpa_desc) { remote_desc_name = "Mock ARPA"; } else { remote_desc_name = "UNKNOWN"; } nDPIsrvd_distributor_disconnects++; logger(1, "nDPIsrvd distributor '%s' connection closed (%d/%d)", remote_desc_name, nDPIsrvd_distributor_disconnects, nDPIsrvd_distributor_expected_disconnects); free_remote(&io, remote); } else { if (handle_data_event(&io, i) != 0) { if (mock_arpa_desc == remote) { // arpa mock does not care about shutdown events free_remote(&io, mock_arpa_desc); nDPIsrvd_distributor_disconnects++; logger(1, "nDPIsrvd distributor '%s' connection closed (%d/%d)", "Mock ARPA", nDPIsrvd_distributor_disconnects, nDPIsrvd_distributor_expected_disconnects); continue; } logger(1, "%s", "nDPIsrvd data event handler failed"); THREAD_ERROR_GOTO(arg); } } } } error: free_remotes(&io); nio_free(&io); logger(0, "%s", "nDPIsrvd worker thread exits.."); return NULL; } static enum nDPIsrvd_callback_return update_flow_packets_processed(struct nDPIsrvd_socket * const sock, struct distributor_flow_user_data * const flow_stats) { struct nDPIsrvd_json_token const * const flow_total_packets_processed[FD_COUNT] = { TOKEN_GET_SZ(sock, "flow_src_packets_processed"), TOKEN_GET_SZ(sock, "flow_dst_packets_processed")}; if (sock == NULL) { return CALLBACK_ERROR; } if (flow_stats != NULL && sock->flow_user_data_size > 0) { flow_stats->total_packets_processed = 0; } for (int dir = 0; dir < FD_COUNT; ++dir) { if (flow_total_packets_processed[dir] != NULL) { nDPIsrvd_ull nmb = 0; if (TOKEN_VALUE_TO_ULL(sock, flow_total_packets_processed[dir], &nmb) != CONVERSION_OK) { return CALLBACK_ERROR; } if (flow_stats != NULL) { if (sock->flow_user_data_size > 0) { flow_stats->total_packets_processed += nmb; } } } } return CALLBACK_OK; } static enum nDPIsrvd_callback_return update_flow_l4_payload_len(struct nDPIsrvd_socket * const sock, struct distributor_flow_user_data * const flow_stats) { struct nDPIsrvd_json_token const * const flow_total_l4_payload_len[FD_COUNT] = { TOKEN_GET_SZ(sock, "flow_src_tot_l4_payload_len"), TOKEN_GET_SZ(sock, "flow_dst_tot_l4_payload_len")}; if (flow_stats != NULL && sock->flow_user_data_size > 0) { flow_stats->flow_total_l4_data_len = 0; } for (int dir = 0; dir < FD_COUNT; ++dir) { if (flow_total_l4_payload_len[dir] != NULL) { nDPIsrvd_ull nmb = 0; if (TOKEN_VALUE_TO_ULL(sock, flow_total_l4_payload_len[dir], &nmb) != CONVERSION_OK) { return CALLBACK_ERROR; } if (sock->flow_user_data_size > 0 && flow_stats != NULL) { flow_stats->flow_total_l4_data_len += nmb; } } } return CALLBACK_OK; } static enum nDPIsrvd_callback_return distributor_json_callback(struct nDPIsrvd_socket * const sock, struct nDPIsrvd_instance * const instance, struct nDPIsrvd_thread_data * const thread_data, struct nDPIsrvd_flow * const flow) { struct distributor_global_user_data * const global_stats = (struct distributor_global_user_data *)sock->global_user_data; struct distributor_instance_user_data * instance_stats = (struct distributor_instance_user_data *)instance->instance_user_data; struct distributor_thread_user_data * thread_stats = NULL; struct distributor_flow_user_data * flow_stats = NULL; #if 0 printf("Distributor: %.*s\n", (int)sock->buffer.json_message_length, sock->buffer.json_message); #endif if (thread_data != NULL) { thread_stats = (struct distributor_thread_user_data *)thread_data->thread_user_data; } if (flow != NULL) { flow_stats = (struct distributor_flow_user_data *)flow->flow_user_data; } if (sock->buffer.json_message_length < global_stats->json_message_len_min) { global_stats->json_message_len_min = sock->buffer.json_message_length; } if (sock->buffer.json_message_length > global_stats->json_message_len_max) { global_stats->json_message_len_max = sock->buffer.json_message_length; } global_stats->json_message_len_avg = (global_stats->json_message_len_avg + (global_stats->json_message_len_max + global_stats->json_message_len_min) / 2) / 2; global_stats->total_events_deserialized++; { struct nDPIsrvd_json_token const * const daemon_event_name = TOKEN_GET_SZ(sock, "daemon_event_name"); if (daemon_event_name != NULL) { if (sock->instance_user_data_size > 0) { instance_stats->daemon_event_count++; } if (thread_stats != NULL && sock->thread_user_data_size > 0) { thread_stats->daemon_event_count++; } if (TOKEN_VALUE_EQUALS_SZ(sock, daemon_event_name, "shutdown") != 0) { struct nDPIsrvd_json_token const * const total_events_serialized = TOKEN_GET_SZ(sock, "total-events-serialized"); if (total_events_serialized != NULL) { nDPIsrvd_ull nmb = 0; if (TOKEN_VALUE_TO_ULL(sock, total_events_serialized, &nmb) != CONVERSION_OK) { goto callback_error; } global_stats->total_events_serialized = nmb; } logger(0, "%s", "Distributor received shutdown event.."); global_stats->shutdown_events++; } } } { struct nDPIsrvd_json_token const * const packet_event_name = TOKEN_GET_SZ(sock, "packet_event_name"); if (packet_event_name != NULL) { struct nDPIsrvd_json_token const * const pkt = TOKEN_GET_SZ(sock, "pkt"); struct nDPIsrvd_json_token const * const packet_id = TOKEN_GET_SZ(sock, "packet_id"); if (pkt == NULL || packet_id == NULL) { logger(1, "%s", "Missing base64 packet data"); goto callback_error; } nDPIsrvd_ull pkt_id = 0ULL; TOKEN_VALUE_TO_ULL(sock, packet_id, &pkt_id); if (pkt_id == 0ULL) { logger(1, "%s", "Missing packet id"); goto callback_error; } nDPIsrvd_ull src_len = nDPIsrvd_get_token_size(sock, pkt); char const * const encoded_base64_buf = nDPIsrvd_get_token_value(sock, pkt); if (src_len == 0 || encoded_base64_buf == NULL) { logger(1, "Missing base64 packet data for packet id: %llu", pkt_id); goto callback_error; } unsigned char out_buf[8192]; size_t out_len = sizeof(out_buf); if (nDPIsrvd_base64decode(encoded_base64_buf, src_len, out_buf, &out_len) != 0 || out_len == 0) { logger(1, "Decoding base64 packet data failed for packet id: %llu", pkt_id); logger(1, "Affected base64 packet data (%llu bytes): %.*s", src_len, (int)src_len, encoded_base64_buf); goto callback_error; } char base64_data[nDPId_PACKETS_PLEN_MAX * 4]; size_t base64_data_len = sizeof(base64_data); if (base64_encode(out_buf, out_len, base64_data, &base64_data_len) != 0) { logger(1, "Encoding previously decoded base64 packet data failed for packet id: %llu", pkt_id); goto callback_error; } unsigned char test_buf[8192]; size_t test_len = sizeof(test_buf); if (nDPIsrvd_base64decode(base64_data, base64_data_len, test_buf, &test_len) != 0 || test_len == 0) { logger(1, "Re-decoding base64 packet data failed for packet id: %llu", pkt_id); goto callback_error; } if (out_len != test_len || memcmp(out_buf, test_buf, out_len) != 0) { logger(1, "Re-decoded base64 packet data differs from data decoded from JSON for packet id: %llu", pkt_id); goto callback_error; } } } { struct nDPIsrvd_json_token const * const flow_event_name = TOKEN_GET_SZ(sock, "flow_event_name"); if (flow_event_name != NULL) { if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "new") != 0) { global_stats->cur_active_flows++; global_stats->flow_new_count++; if (thread_stats != NULL && sock->thread_user_data_size > 0) { thread_stats->flow_new_count++; } unsigned int hash_count = HASH_COUNT(instance->flow_table); if (global_stats->options.do_hash_checks != 0 && hash_count != global_stats->cur_active_flows) { logger(1, "Amount of flows in the flow table not equal to current active flows counter: %u != %llu", hash_count, global_stats->cur_active_flows); goto callback_error; } } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "end") != 0) { global_stats->cur_active_flows--; global_stats->cur_idle_flows++; global_stats->flow_end_count++; if (thread_stats != NULL && sock->thread_user_data_size > 0) { thread_stats->flow_end_count++; } if (update_flow_packets_processed(sock, flow_stats) != CALLBACK_OK || update_flow_l4_payload_len(sock, flow_stats) != CALLBACK_OK) { goto callback_error; } } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "idle") != 0) { global_stats->cur_active_flows--; global_stats->cur_idle_flows++; global_stats->flow_idle_count++; if (thread_stats != NULL && sock->thread_user_data_size > 0) { thread_stats->flow_idle_count++; } if (update_flow_packets_processed(sock, flow_stats) != CALLBACK_OK || update_flow_l4_payload_len(sock, flow_stats) != CALLBACK_OK) { goto callback_error; } } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "detected") != 0) { global_stats->flow_detected_count++; } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "guessed") != 0) { global_stats->flow_guessed_count++; } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "not-detected") != 0) { global_stats->flow_not_detected_count++; } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "detection-update") != 0) { global_stats->flow_detection_update_count++; } if (TOKEN_VALUE_EQUALS_SZ(sock, flow_event_name, "update") != 0) { global_stats->flow_update_count++; } struct nDPIsrvd_flow * current_flow; struct nDPIsrvd_flow * ftmp; size_t flow_count = 0; HASH_ITER(hh, instance->flow_table, current_flow, ftmp) { flow_count++; } if (global_stats->options.do_hash_checks != 0 && flow_count != global_stats->cur_active_flows + global_stats->cur_idle_flows) { logger(1, "Amount of flows in flow table not equal current active flows plus current idle flows: %llu != " "%llu + %llu", (unsigned long long int)flow_count, global_stats->cur_active_flows, global_stats->cur_idle_flows); goto callback_error; } } } return CALLBACK_OK; callback_error: logger(1, "%s", "Distributor error.."); return CALLBACK_ERROR; } static void distributor_instance_cleanup_callback(struct nDPIsrvd_socket * const sock, struct nDPIsrvd_instance * const instance, enum nDPIsrvd_cleanup_reason reason) { struct distributor_global_user_data * const global_stats = (struct distributor_global_user_data *)sock->global_user_data; struct nDPIsrvd_thread_data * current_thread_data; struct nDPIsrvd_thread_data * ttmp; (void)reason; if (sock->global_user_data_size == 0 || sock->thread_user_data_size == 0 || sock->instance_user_data_size == 0) { return; } HASH_ITER(hh, instance->thread_data_table, current_thread_data, ttmp) { struct distributor_thread_user_data * const tud = (struct distributor_thread_user_data *)current_thread_data->thread_user_data; global_stats->thread_user_data.daemon_event_count += tud->daemon_event_count; global_stats->thread_user_data.flow_new_count += tud->flow_new_count; global_stats->thread_user_data.flow_end_count += tud->flow_end_count; global_stats->thread_user_data.flow_idle_count += tud->flow_idle_count; } global_stats->instance_user_data = *(struct distributor_instance_user_data *)instance->instance_user_data; } static void distributor_flow_cleanup_callback(struct nDPIsrvd_socket * const sock, struct nDPIsrvd_instance * const instance, struct nDPIsrvd_thread_data * const thread_data, struct nDPIsrvd_flow * const flow, enum nDPIsrvd_cleanup_reason reason) { struct distributor_global_user_data * const global_stats = (struct distributor_global_user_data *)sock->global_user_data; struct distributor_flow_user_data * const flow_stats = (struct distributor_flow_user_data *)flow->flow_user_data; (void)thread_data; if (sock->instance_user_data_size > 0) { ((struct distributor_instance_user_data *)instance->instance_user_data)->flow_cleanup_count++; } switch (reason) { case CLEANUP_REASON_DAEMON_INIT: case CLEANUP_REASON_DAEMON_SHUTDOWN: /* If that happens, it is either a BUG or caused by other applications. */ logger(1, "Invalid flow cleanup reason: %s", nDPIsrvd_enum_to_string(reason)); global_stats->flow_cleanup_error = 1; break; case CLEANUP_REASON_FLOW_TIMEOUT: /* * Flow timeouts may happen. The cause is libpcap itself. * Unfortunately, libpcap does not provide retrieving the file descriptor if reading packets from a file. * Without a file descriptor select(), poll() or epoll() can not work. * As result all timestamps may have huge gaps depending on the recorded pcap file. * But those timestamps are necessary to make flow-updates work. */ global_stats->total_flow_timeouts++; flow_stats->is_flow_timedout = 1; break; case CLEANUP_REASON_APP_SHUTDOWN: case CLEANUP_REASON_FLOW_END: case CLEANUP_REASON_FLOW_IDLE: break; case CLEANUP_REASON_LAST_ENUM_VALUE: break; } unsigned hash_count = HASH_COUNT(instance->flow_table); if (hash_count != global_stats->cur_active_flows + global_stats->cur_idle_flows) { logger(1, "Flow count is not equal to current active flows plus current idle flows plus current timedout flows: " "%u != %llu + %llu", hash_count, global_stats->cur_active_flows, global_stats->cur_idle_flows); global_stats->flow_cleanup_error = 1; } if (flow_stats->is_flow_timedout == 0) { global_stats->total_packets_processed += flow_stats->total_packets_processed; global_stats->total_l4_payload_len += flow_stats->flow_total_l4_data_len; global_stats->cur_idle_flows--; } } static enum nDPIsrvd_callback_return distributor_json_mock_buff_callback( struct nDPIsrvd_socket * const sock, struct nDPIsrvd_instance * const instance, struct nDPIsrvd_thread_data * const thread_data, struct nDPIsrvd_flow * const flow) { return distributor_json_callback(sock, instance, thread_data, flow); } static enum nDPIsrvd_callback_return distributor_json_printer(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; (void)flow; { struct nDPIsrvd_json_token const * const daemon_event_name = TOKEN_GET_SZ(sock, "daemon_event_name"); if (daemon_event_name != NULL) { if (TOKEN_VALUE_EQUALS_SZ(sock, daemon_event_name, "shutdown") != 0) { logger(0, "%s", "Distributor received shutdown event.."); int * const mock_null_shutdown_events = (int *)sock->global_user_data; (*mock_null_shutdown_events)++; } } } printf("%0" NETWORK_BUFFER_LENGTH_DIGITS_STR "llu%.*s", sock->buffer.json_message_length - NETWORK_BUFFER_LENGTH_DIGITS, nDPIsrvd_json_buffer_length(sock), nDPIsrvd_json_buffer_string(sock)); return CALLBACK_OK; } static void * distributor_client_mainloop_thread(void * const arg) { struct nio io; #if !defined(__FreeBSD__) && !defined(__APPLE__) int signalfd = -1; #endif struct distributor_return_value * const drv = (struct distributor_return_value *)arg; struct thread_return_value * const trv = &drv->thread_return_value; struct nDPIsrvd_socket * mock_sock = nDPIsrvd_socket_init(sizeof(struct distributor_global_user_data), sizeof(struct distributor_instance_user_data), sizeof(struct distributor_thread_user_data), sizeof(struct distributor_flow_user_data), distributor_json_callback, distributor_instance_cleanup_callback, distributor_flow_cleanup_callback); struct nDPIsrvd_socket * mock_buff = nDPIsrvd_socket_init(sizeof(struct distributor_global_user_data), sizeof(struct distributor_instance_user_data), sizeof(struct distributor_thread_user_data), sizeof(struct distributor_flow_user_data), distributor_json_mock_buff_callback, distributor_instance_cleanup_callback, distributor_flow_cleanup_callback); struct nDPIsrvd_socket * mock_null = nDPIsrvd_socket_init(sizeof(int), 0, 0, 0, distributor_json_printer, NULL, NULL); struct distributor_global_user_data * sock_stats; struct distributor_global_user_data * buff_stats; int * mock_null_shutdown_events; logger(0, "Distributor thread started, init.."); nio_init(&io); #ifdef ENABLE_EPOLL if (nio_use_epoll(&io, 32) != NIO_SUCCESS) #else if (nio_use_poll(&io, 32) != NIO_SUCCESS) #endif { logger(1, "%s", "Error creating Distributor poll/epoll event I/O"); THREAD_ERROR_GOTO(trv); } #if !defined(__FreeBSD__) && !defined(__APPLE__) signalfd = setup_signalfd(&io); if (signalfd < 0) { logger(1, "Distributor signal fd setup failed: %s", strerror(errno)); THREAD_ERROR_GOTO(trv); } #endif if (thread_block_signals() != 0) { logger(1, "Distributor block signals failed: %s", strerror(errno)); THREAD_ERROR_GOTO(trv); } errno = 0; if (mock_sock == NULL || mock_buff == NULL || mock_null == NULL) { THREAD_ERROR_GOTO(trv); } mock_sock->fd = mock_testfds[PIPE_TEST_READ]; mock_buff->fd = mock_bufffds[PIPE_BUFFER_READ]; mock_null->fd = mock_nullfds[PIPE_NULL_READ]; errno = 0; if (add_in_event_fd(&io, mock_testfds[PIPE_TEST_READ]) != 0) { THREAD_ERROR_GOTO(trv); } errno = 0; if (add_in_event_fd(&io, mock_bufffds[PIPE_BUFFER_READ]) != 0) { THREAD_ERROR_GOTO(trv); } errno = 0; if (add_in_event_fd(&io, mock_nullfds[PIPE_NULL_READ]) != 0) { THREAD_ERROR_GOTO(trv); } errno = 0; if (add_in_event_fd(&io, mock_arpafds[PIPE_ARPA_READ]) != 0) { THREAD_ERROR_GOTO(trv); } sock_stats = (struct distributor_global_user_data *)mock_sock->global_user_data; sock_stats->json_message_len_min = (unsigned long long int)-1; sock_stats->options.do_hash_checks = 1; buff_stats = (struct distributor_global_user_data *)mock_buff->global_user_data; buff_stats->json_message_len_min = (unsigned long long int)-1; buff_stats->options.do_hash_checks = 0; mock_null_shutdown_events = (int *)mock_null->global_user_data; *mock_null_shutdown_events = 0; logger(0, "Distributor thread init done"); thread_signal(&start_condition); thread_wait(&start_condition); while (sock_stats->shutdown_events == 0 || buff_stats->shutdown_events == 0 || *mock_null_shutdown_events == 0) { if (nio_run(&io, -1) != NIO_SUCCESS) { logger(1, "nDPIsrvd event I/O returned: %s", strerror(errno)); THREAD_ERROR_GOTO(trv); } int nready = nio_get_nready(&io); for (int i = 0; i < nready; i++) { int fd = nio_get_fd(&io, i); if (nio_has_input(&io, i) != NIO_SUCCESS && nio_has_error(&io, i) != NIO_SUCCESS) { logger(1, "Invalid epoll event received for fd: %d", fd); THREAD_ERROR_GOTO(trv); } if (nio_has_error(&io, i) == NIO_SUCCESS) { logger(1, "Distributor disconnected: %d", fd); del_event(&io, fd); } if (fd == mock_testfds[PIPE_TEST_READ]) { switch (nDPIsrvd_read(mock_sock)) { case READ_OK: break; case READ_LAST_ENUM_VALUE: case READ_ERROR: case READ_TIMEOUT: logger(1, "Read and verify fd returned an error: %s", strerror(errno)); THREAD_ERROR_GOTO(trv); case READ_PEER_DISCONNECT: break; } enum nDPIsrvd_parse_return parse_ret = nDPIsrvd_parse_all(mock_sock); if (parse_ret != PARSE_NEED_MORE_DATA) { logger(1, "JSON parsing failed: %s", nDPIsrvd_enum_to_string(parse_ret)); logger(1, "Problematic JSON message (mock sock, start: %zu, length: %llu, buffer usage: %zu): %.*s", mock_sock->buffer.json_message_start, mock_sock->buffer.json_message_length, mock_sock->buffer.buf.used, (int)mock_sock->buffer.json_message_length, mock_sock->buffer.json_message); THREAD_ERROR_GOTO(trv); } if (sock_stats->flow_cleanup_error != 0) { logger(1, "%s", "Flow cleanup callback error'd"); THREAD_ERROR_GOTO(trv); } } else if (fd == mock_bufffds[PIPE_BUFFER_READ]) { switch (nDPIsrvd_read(mock_buff)) { case READ_OK: break; case READ_LAST_ENUM_VALUE: case READ_ERROR: case READ_TIMEOUT: logger(1, "Read and verify fd returned an error: %s", strerror(errno)); THREAD_ERROR_GOTO(trv); case READ_PEER_DISCONNECT: break; } enum nDPIsrvd_parse_return parse_ret = nDPIsrvd_parse_all(mock_buff); if (parse_ret != PARSE_NEED_MORE_DATA) { logger(1, "JSON parsing failed: %s", nDPIsrvd_enum_to_string(parse_ret)); logger(1, "Problematic JSON message (buff sock, start: %zu, length: %llu, buffer usage: %zu): %.*s", mock_buff->buffer.json_message_start, mock_buff->buffer.json_message_length, mock_buff->buffer.buf.used, (int)mock_buff->buffer.json_message_length, mock_buff->buffer.json_message); THREAD_ERROR_GOTO(trv); } if (buff_stats->flow_cleanup_error != 0) { logger(1, "%s", "Flow cleanup callback error'd"); THREAD_ERROR_GOTO(trv); } } else if (fd == mock_nullfds[PIPE_NULL_READ]) { switch (nDPIsrvd_read(mock_null)) { case READ_OK: break; case READ_LAST_ENUM_VALUE: case READ_ERROR: case READ_TIMEOUT: logger(1, "Read and verify fd returned an error: %s", strerror(errno)); THREAD_ERROR_GOTO(trv); case READ_PEER_DISCONNECT: break; } enum nDPIsrvd_parse_return parse_ret = nDPIsrvd_parse_all(mock_null); if (parse_ret != PARSE_NEED_MORE_DATA) { logger(1, "JSON parsing failed: %s", nDPIsrvd_enum_to_string(parse_ret)); logger(1, "Problematic JSON message (buff sock, start: %zu, length: %llu, buffer usage: %zu): %.*s", mock_null->buffer.json_message_start, mock_null->buffer.json_message_length, mock_null->buffer.buf.used, (int)mock_null->buffer.json_message_length, mock_null->buffer.json_message); THREAD_ERROR_GOTO(trv); } } else if (fd == mock_arpafds[PIPE_ARPA_READ]) { char buf[NETWORK_BUFFER_MAX_SIZE]; ssize_t bytes_read = read(mock_arpafds[PIPE_ARPA_READ], buf, sizeof(buf)); if (bytes_read < 0) { logger(1, "Read fd returned an error: %s", strerror(errno)); THREAD_ERROR_GOTO(trv); } /* * Nothing to do .. ? * I am just here to trigger some IP code paths. */ } #if !defined(__FreeBSD__) && !defined(__APPLE__) else if (fd == signalfd) { struct signalfd_siginfo fdsi; ssize_t s; errno = 0; s = read(signalfd, &fdsi, sizeof(struct signalfd_siginfo)); if (s != sizeof(struct signalfd_siginfo)) { THREAD_ERROR(trv); } if (fdsi.ssi_signo == SIGINT || fdsi.ssi_signo == SIGTERM || fdsi.ssi_signo == SIGQUIT) { logger(1, "Got signal %d, abort.", fdsi.ssi_signo); errno = 0; THREAD_ERROR_GOTO(trv); } } #endif else { logger(1, "Distributor epoll returned unexpected event data: %p", nio_get_ptr(&io, i)); THREAD_ERROR_GOTO(trv); } } } struct nDPIsrvd_instance * current_instance; struct nDPIsrvd_instance * itmp; struct nDPIsrvd_flow * current_flow; struct nDPIsrvd_flow * ftmp; HASH_ITER(hh, mock_sock->instance_table, current_instance, itmp) { HASH_ITER(hh, current_instance->flow_table, current_flow, ftmp) { logger(1, "[Mock Sock] Active flow found during client distributor shutdown with id: %llu", current_flow->id_as_ull); errno = 0; THREAD_ERROR(trv); } nDPIsrvd_cleanup_instance(mock_sock, current_instance, CLEANUP_REASON_APP_SHUTDOWN); } HASH_ITER(hh, mock_buff->instance_table, current_instance, itmp) { HASH_ITER(hh, current_instance->flow_table, current_flow, ftmp) { logger(1, "[Mock Buff] Active flow found during client distributor shutdown with id: %llu", current_flow->id_as_ull); errno = 0; THREAD_ERROR(trv); } nDPIsrvd_cleanup_instance(mock_buff, current_instance, CLEANUP_REASON_APP_SHUTDOWN); } if (memcmp(sock_stats, buff_stats, sizeof(*sock_stats) - sizeof(sock_stats->options)) != 0) { logger(1, "Global statistics differ across different sockets! Events: %llu/%llu != %llu/%llu, Total Flows: " "%llu/%llu + %llu != %llu/%llu + %llu", buff_stats->total_events_serialized, buff_stats->total_events_deserialized, sock_stats->total_events_serialized, sock_stats->total_events_deserialized, buff_stats->flow_new_count, buff_stats->flow_end_count, buff_stats->flow_idle_count, sock_stats->flow_new_count, sock_stats->flow_end_count, sock_stats->flow_idle_count); errno = 0; THREAD_ERROR(trv); } drv->stats = *sock_stats; if (sock_stats->shutdown_events != 1 || buff_stats->shutdown_events != 1 || *mock_null_shutdown_events != 1) { logger(1, "Unexpected amount of shutdown events received, expected 1 per nDPIsrvd socket, got (Sock/Buff/NULL): " "%llu/%llu/%d", sock_stats->shutdown_events, buff_stats->shutdown_events, *mock_null_shutdown_events); errno = 0; THREAD_ERROR(trv); } error: #if !defined(__FreeBSD__) && !defined(__APPLE__) del_event(&io, signalfd); #endif del_event(&io, mock_testfds[PIPE_TEST_READ]); del_event(&io, mock_bufffds[PIPE_BUFFER_READ]); del_event(&io, mock_nullfds[PIPE_NULL_READ]); del_event(&io, mock_arpafds[PIPE_ARPA_READ]); close(mock_testfds[PIPE_TEST_READ]); close(mock_bufffds[PIPE_BUFFER_READ]); close(mock_nullfds[PIPE_NULL_READ]); close(mock_arpafds[PIPE_ARPA_READ]); #if !defined(__FreeBSD__) && !defined(__APPLE__) close(signalfd); #endif nio_free(&io); nDPIsrvd_socket_free(&mock_sock); nDPIsrvd_socket_free(&mock_buff); nDPIsrvd_socket_free(&mock_null); logger(0, "%s", "Distributor worker thread exits.."); return NULL; } static void * nDPId_mainloop_thread(void * const arg) { struct nDPId_return_value * const nrv = (struct nDPId_return_value *)arg; struct thread_return_value * const trr = &nrv->thread_return_value; logger(0, "nDPId thread started, init.."); if (thread_block_signals() != 0) { logger(1, "nDPId block signals failed: %s", strerror(errno)); THREAD_ERROR_GOTO(trr); } if (setup_reader_threads() != 0) { logger(1, "%s", "nDPId setup reader threads failed"); THREAD_ERROR_GOTO(trr); } /* Replace nDPId JSON socket fd with the one in our pipe and hope that no socket specific code-path triggered. */ reader_threads[nrv->thread_index].collector_sockfd = mock_pipefds[PIPE_nDPId]; reader_threads[nrv->thread_index].collector_sock_last_errno = 0; if (set_collector_block(&reader_threads[nrv->thread_index]) != 0) { THREAD_ERROR_GOTO(trr); } logger(0, "nDPId thread initialize done"); thread_signal(&start_condition); thread_wait(&start_condition); jsonize_daemon(&reader_threads[nrv->thread_index], DAEMON_EVENT_INIT); /* restore SIGPIPE to the default handler (Termination) */ if (signal(SIGPIPE, SIG_DFL) == SIG_ERR) { logger(1, "nDPId restore SIGPIPE to the default handler: %s", strerror(errno)); THREAD_ERROR_GOTO(trr); } run_capture_loop(&reader_threads[nrv->thread_index]); process_remaining_flows(); nrv->packets_captured += reader_threads[nrv->thread_index].workflow->packets_captured; nrv->packets_processed += reader_threads[nrv->thread_index].workflow->packets_processed; nrv->total_skipped_flows += reader_threads[nrv->thread_index].workflow->total_skipped_flows; nrv->total_l4_payload_len += reader_threads[nrv->thread_index].workflow->total_l4_payload_len; nrv->not_detected_flow_protocols += reader_threads[nrv->thread_index].workflow->total_not_detected_flows; nrv->guessed_flow_protocols += reader_threads[nrv->thread_index].workflow->total_guessed_flows; nrv->detected_flow_protocols += reader_threads[nrv->thread_index].workflow->total_detected_flows; nrv->flow_detection_updates += reader_threads[nrv->thread_index].workflow->total_flow_detection_updates; nrv->flow_updates += reader_threads[nrv->thread_index].workflow->total_flow_updates; nrv->total_active_flows += reader_threads[nrv->thread_index].workflow->total_active_flows; nrv->total_idle_flows += reader_threads[nrv->thread_index].workflow->total_idle_flows; nrv->cur_active_flows += reader_threads[nrv->thread_index].workflow->cur_active_flows; nrv->cur_idle_flows += reader_threads[nrv->thread_index].workflow->cur_idle_flows; #ifdef ENABLE_ZLIB nrv->total_compressions += reader_threads[nrv->thread_index].workflow->total_compressions; nrv->total_compression_diff += reader_threads[nrv->thread_index].workflow->total_compression_diff; nrv->current_compression_diff += reader_threads[nrv->thread_index].workflow->current_compression_diff; #endif nrv->total_events_serialized += reader_threads[nrv->thread_index].workflow->total_events_serialized; error: thread_signal(&start_condition); close(mock_pipefds[PIPE_nDPId]); mock_pipefds[PIPE_nDPId] = -1; logger(0, "%s", "nDPId worker thread exits.."); return NULL; } static void usage(char const * const arg0) { fprintf(stderr, "usage: %s [path-to-pcap-file] [optional-nDPId-config-file]\n", arg0); } static int thread_wait_for_termination(pthread_t thread, time_t wait_time_secs, struct thread_return_value * trv) { #if 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"oTu1PG6FVqPCU4kelQ7fxxlcIXd6HGqKRLIMjn7rfoqJjrMD6f+MuqOc6zhTtRiXVNt+" "I7QyDynWob9hXatr7lnV0PrL8khH77gzI2EMAAFpAwAYYQTecdNR1L5rxVVXMe7Djp2zNXzMwoqnJg/" "0hr4QS1hduMHTwKBXqjb4CGVJbxoc+S/7hjTHGDqWhHCpq9+4SQxcR6MVp65BVNMdGJRLMiHAkUWvivJW4DOanO//" "36RFuMQEAQEAUMabZOvBbAa1KSTcWbL5ZGc/YPxLofmSTDMxf+KmqSukiR3yVasPbv5J6Hx2zCATM9pR9VRArg=="; size_t encoded_len = strnlen(encoded_buf, sizeof(encoded_buf)); unsigned char decoded_buf[nDPId_PACKETS_PLEN_MAX]; size_t decoded_len = sizeof(decoded_buf); if (nDPIsrvd_base64decode(encoded_buf, encoded_len, decoded_buf, &decoded_len) != 0) { logger(1, "base64_selftest: Could not decode test buffer of size %zu bytes", encoded_len); return 1; } char base64_data[nDPId_PACKETS_PLEN_MAX * 4]; size_t base64_data_len = sizeof(base64_data); if (base64_encode(decoded_buf, decoded_len, base64_data, &base64_data_len) != 0) { logger(1, "base64_selftest: Re-encoding base64 buffer failed"); return 1; } if (base64_data_len != encoded_len) { logger(1, "base64_selftest: Re-encoded base64 buffer size differs: %zu bytes != %zu bytes", base64_data_len, encoded_len); return 1; } return strncmp(base64_data, encoded_buf, base64_data_len) != 0; } static int nio_selftest() { struct nio io; nio_init(&io); #ifdef ENABLE_EPOLL logger(0, "%s", "Using epoll for nio"); #else logger(0, "%s", "Using poll for nio"); #endif #ifdef ENABLE_EPOLL if (nio_use_epoll(&io, 32) != NIO_SUCCESS) #else if (nio_use_poll(&io, 32) != NIO_SUCCESS) #endif { logger(1, "%s", "Could not use poll/epoll for nio"); goto error; } int pipefds[2]; int rv = pipe(pipefds); if (rv < 0) { logger(1, "Could not create a pipe: %s", strerror(errno)); goto error; } if (nio_add_fd(&io, pipefds[1], NIO_EVENT_OUTPUT, NULL) != NIO_SUCCESS || nio_add_fd(&io, pipefds[0], NIO_EVENT_INPUT, NULL) != NIO_SUCCESS) { logger(1, "%s", "Could not add pipe fds to nio"); goto error; } if (fcntl_add_flags(pipefds[1], O_NONBLOCK) != 0 || fcntl_add_flags(pipefds[0], O_NONBLOCK) != 0) { logger(1, "%s", "Could not set pipe fds to O_NONBLOCK"); goto error; } char const wbuf[] = "AAAA"; size_t const wlen = strnlen(wbuf, sizeof(wbuf)); if (write(pipefds[1], wbuf, wlen) < 0) { logger(1, "Write '%s' (%zu bytes) to pipe failed with: %s", wbuf, wlen, strerror(errno)); goto error; } if (nio_run(&io, 1000) != NIO_SUCCESS) { logger(1, "%s", "Event notification failed"); goto error; } if (nio_can_output(&io, 0) != NIO_SUCCESS) { logger(1, "%s", "Pipe fd (write) can not output"); goto error; } if (nio_has_input(&io, 1) != NIO_SUCCESS) { logger(1, "%s", "Pipe fd (read) has no input"); goto error; } if (nio_is_valid(&io, 0) != NIO_SUCCESS || nio_is_valid(&io, 1) != NIO_SUCCESS || nio_has_error(&io, 0) == NIO_SUCCESS || nio_has_error(&io, 1) == NIO_SUCCESS) { logger(1, "%s", "Event validation failed"); goto error; } char rbuf[4]; if (read(pipefds[0], rbuf, sizeof(rbuf)) != sizeof(rbuf) || strncmp(rbuf, wbuf, wlen) != 0) { logger(1, "%s", "Buffer receive failed"); goto error; } if (nio_run(&io, 1000) != NIO_SUCCESS) { logger(1, "%s", "Event notification failed"); goto error; } if (nio_can_output(&io, 0) != NIO_SUCCESS) { logger(1, "%s", "Pipe fd (write) can not output"); goto error; } if (nio_has_input(&io, 1) == NIO_SUCCESS) { logger(1, "%s", "Pipe fd (read) has input"); goto error; } if (nio_is_valid(&io, 0) != NIO_SUCCESS || nio_is_valid(&io, 1) == NIO_SUCCESS || nio_has_error(&io, 0) == NIO_SUCCESS || nio_has_error(&io, 1) == NIO_SUCCESS) { logger(1, "%s", "Event validation failed"); goto error; } if (nio_del_fd(&io, pipefds[0]) != NIO_SUCCESS || nio_del_fd(&io, pipefds[1]) != NIO_SUCCESS) { logger(1, "%s", "Event delete failed"); goto error; } nio_free(&io); return 0; error: nio_free(&io); return 1; } #define THREADS_RETURNED_ERROR() \ (nDPId_return.thread_return_value.val != 0 || nDPIsrvd_return.val != 0 || \ distributor_return.thread_return_value.val != 0) int main(int argc, char ** argv) { if (argc != 1 && argc != 2 && argc != 3) { usage(argv[0]); return 1; } set_ndpi_malloc(ndpi_malloc_wrapper); set_ndpi_free(ndpi_free_wrapper); set_ndpi_flow_malloc(NULL); set_ndpi_flow_free(NULL); init_logging("nDPId-test"); log_app_info(); if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) { return 1; } if (argc == 1) { int retval = 0; usage(argv[0]); logger(1, "%s", "No pcap file provided. Running selftest mode."); retval += base64_selftest(); retval += nio_selftest(); logger(1, "Selftest returned: %d", retval); return retval; } if (access(argv[1], R_OK) != 0) { logger(1, "%s: pcap file `%s' does not exist or is not readable", argv[0], argv[1]); return 1; } set_config_defaults(&config_map[0], nDPIsrvd_ARRAY_LENGTH(config_map)); set_config_defaults(&general_config_map[0], nDPIsrvd_ARRAY_LENGTH(general_config_map)); set_config_defaults(&tuning_config_map[0], nDPIsrvd_ARRAY_LENGTH(tuning_config_map)); { int ret; if (argc == 3) { set_cmdarg_string(&nDPId_options.config_file, argv[2]); } if (IS_CMDARG_SET(nDPId_options.config_file) != 0 && (ret = parse_config_file(GET_CMDARG_STR(nDPId_options.config_file), nDPId_parsed_config_line, NULL)) != 0) { if (ret > 0) { logger(1, "Config file `%s' is malformed", GET_CMDARG_STR(nDPId_options.config_file)); } else if (ret == -ENOENT) { logger(1, "Path `%s' is not a regular file", GET_CMDARG_STR(nDPId_options.config_file)); } else { logger(1, "Could not open file `%s' for reading: %s", GET_CMDARG_STR(nDPId_options.config_file), strerror(errno)); } return 1; } } set_cmdarg_ull(&nDPIsrvd_options.max_write_buffers, 32); set_cmdarg_string(&nDPId_options.pcap_file_or_interface, argv[1]); set_cmdarg_boolean(&nDPId_options.decode_tunnel, 1); set_cmdarg_boolean(&nDPId_options.enable_data_analysis, 1); set_cmdarg_ull(&nDPId_options.max_packets_per_flow_to_send, 5); #ifdef ENABLE_ZLIB /* * zLib compression is forced enabled for testing. * Remember to compile nDPId with zlib enabled. * There will be diff's while running `test/run_tests.sh' otherwise. */ set_cmdarg_boolean(&nDPId_options.enable_zlib_compression, 1); #endif #ifdef ENABLE_MEMORY_PROFILING set_cmdarg_ull(&nDPId_options.memory_profiling_log_interval, (unsigned long long int)-1); #endif set_cmdarg_ull(&nDPId_options.reader_thread_count, 1); /* Please do not change this! Generating meaningful pcap diff's relies on a single reader thread! */ set_cmdarg_string(&nDPId_options.instance_alias, "nDPId-test"); if (validate_options() != 0) { return 1; } if (setup_pipe(mock_pipefds) != 0 || setup_pipe(mock_testfds) != 0 || setup_pipe(mock_bufffds) != 0 || setup_pipe(mock_nullfds) != 0 || setup_pipe(mock_arpafds) != 0) { return 1; } /* We do not have any sockets, any socket operation must fail! */ collector_un_sockfd = -1; distributor_un_sockfd = -1; distributor_in_sockfd = -1; global_context = ndpi_global_init(); if (global_context == NULL) { logger_early(1, "Could not initialize libnDPI global context."); } if (setup_remote_descriptors(MAX_REMOTE_DESCRIPTORS) != 0) { return 1; } pthread_t nDPId_thread; struct nDPId_return_value nDPId_return = {.thread_index = 0}; if (pthread_create(&nDPId_thread, NULL, nDPId_mainloop_thread, &nDPId_return) != 0) { return 1; } pthread_t nDPIsrvd_thread; struct thread_return_value nDPIsrvd_return = {}; if (pthread_create(&nDPIsrvd_thread, NULL, nDPIsrvd_mainloop_thread, &nDPIsrvd_return) != 0) { return 1; } pthread_t distributor_thread; struct distributor_return_value distributor_return = {}; if (pthread_create(&distributor_thread, NULL, distributor_client_mainloop_thread, &distributor_return) != 0) { return 1; } /* Try to gracefully shutdown all threads. */ while (thread_wait_for_termination(distributor_thread, 1, &distributor_return.thread_return_value) == 0) { if (THREADS_RETURNED_ERROR() != 0) { break; } } while (thread_wait_for_termination(nDPId_thread, 1, &nDPId_return.thread_return_value) == 0) { if (THREADS_RETURNED_ERROR() != 0) { break; } } while (thread_wait_for_termination(nDPIsrvd_thread, 1, &nDPIsrvd_return) == 0) { if (THREADS_RETURNED_ERROR() != 0) { break; } } logger(0, "%s", "All worker threads terminated.."); free_reader_threads(); if (global_context != NULL) { ndpi_global_deinit(global_context); } global_context = NULL; if (THREADS_RETURNED_ERROR() != 0) { char const * which_thread = "Unknown"; int thread_errno = 0; if (nDPId_return.thread_return_value.val != 0) { which_thread = "nDPId"; thread_errno = nDPId_return.thread_return_value.val; } else if (nDPIsrvd_return.val != 0) { which_thread = "nDPIsrvd"; thread_errno = nDPIsrvd_return.val; } else if (distributor_return.thread_return_value.val != 0) { which_thread = "Distributor"; thread_errno = distributor_return.thread_return_value.val; } logger(1, "%s Thread returned a non zero value: %d (%s)", which_thread, thread_errno, (thread_errno < 0 ? strerror(thread_errno) : "Application specific error")); return 1; } { printf( "~~~~~~~~~~~~~~~~~~~~ SUMMARY ~~~~~~~~~~~~~~~~~~~~\n" "~~ packets captured/processed: %llu/%llu\n" "~~ skipped flows.............: %llu\n" "~~ total layer4 data length..: %llu bytes\n" "~~ total detected protocols..: %llu\n" "~~ total active/idle flows...: %llu/%llu\n" "~~ total timeout flows.......: %llu\n" "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n", nDPId_return.packets_captured, nDPId_return.packets_processed, nDPId_return.total_skipped_flows, nDPId_return.total_l4_payload_len, nDPId_return.detected_flow_protocols, nDPId_return.total_active_flows, nDPId_return.total_idle_flows, distributor_return.stats.total_flow_timeouts); unsigned long long int total_alloc_bytes = #ifdef ENABLE_ZLIB (unsigned long long int)(MT_GET_AND_ADD(ndpi_memory_alloc_bytes, 0) - MT_GET_AND_ADD(zlib_compression_bytes, 0) - (MT_GET_AND_ADD(zlib_compressions, 0) * sizeof(struct nDPId_detection_data))); #else (unsigned long long int)MT_GET_AND_ADD(ndpi_memory_alloc_bytes, 0); #endif unsigned long long int total_free_bytes = #ifdef ENABLE_ZLIB (unsigned long long int)(MT_GET_AND_ADD(ndpi_memory_free_bytes, 0) - MT_GET_AND_ADD(zlib_compression_bytes, 0) - (MT_GET_AND_ADD(zlib_compressions, 0) * sizeof(struct nDPId_detection_data))); #else (unsigned long long int)MT_GET_AND_ADD(ndpi_memory_free_bytes, 0); #endif unsigned long long int total_alloc_count = #ifdef ENABLE_ZLIB (unsigned long long int)(MT_GET_AND_ADD(ndpi_memory_alloc_count, 0) - MT_GET_AND_ADD(zlib_compressions, 0) * 2); #else (unsigned long long int)MT_GET_AND_ADD(ndpi_memory_alloc_count, 0); #endif unsigned long long int total_free_count = #ifdef ENABLE_ZLIB (unsigned long long int)(MT_GET_AND_ADD(ndpi_memory_free_count, 0) - MT_GET_AND_ADD(zlib_decompressions, 0) * 2); #else (unsigned long long int)MT_GET_AND_ADD(ndpi_memory_free_count, 0); #endif printf( "~~ total memory allocated....: %llu bytes\n" "~~ total memory freed........: %llu bytes\n" "~~ total allocations/frees...: %llu/%llu\n" "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n", total_alloc_bytes - sizeof(struct nDPId_workflow) * GET_CMDARG_ULL( nDPId_options.reader_thread_count) /* We do not want to take the workflow into account. */, total_free_bytes - sizeof(struct nDPId_workflow) * GET_CMDARG_ULL( nDPId_options.reader_thread_count) /* We do not want to take the workflow into account. */, total_alloc_count, total_free_count); printf( "~~ json message min len.......: %llu chars\n" "~~ json message max len.......: %llu chars\n" "~~ json message avg len.......: %llu chars\n", distributor_return.stats.json_message_len_min, distributor_return.stats.json_message_len_max, (unsigned long long int)distributor_return.stats.json_message_len_avg); } if (MT_GET_AND_ADD(ndpi_memory_alloc_bytes, 0) != MT_GET_AND_ADD(ndpi_memory_free_bytes, 0) || MT_GET_AND_ADD(ndpi_memory_alloc_count, 0) != MT_GET_AND_ADD(ndpi_memory_free_count, 0) || nDPId_return.total_active_flows != nDPId_return.total_idle_flows) { logger(1, "%s: %s", argv[0], "Memory / Flow leak detected."); logger(1, "%s: Allocated / Free'd bytes: %llu / %llu", argv[0], (unsigned long long int)MT_GET_AND_ADD(ndpi_memory_alloc_bytes, 0), (unsigned long long int)MT_GET_AND_ADD(ndpi_memory_free_bytes, 0)); logger(1, "%s: Allocated / Free'd count: %llu / %llu", argv[0], (unsigned long long int)MT_GET_AND_ADD(ndpi_memory_alloc_count, 0), (unsigned long long int)MT_GET_AND_ADD(ndpi_memory_free_count, 0)); logger(1, "%s: Total Active / Idle Flows: %llu / %llu", argv[0], nDPId_return.total_active_flows, nDPId_return.total_idle_flows); return 1; } if (nDPIsrvd_alloc_bytes != nDPIsrvd_free_bytes || nDPIsrvd_alloc_count != nDPIsrvd_free_count) { logger(1, "%s: %s", argv[0], "nDPIsrvd.h memory leak detected."); logger(1, "%s: Allocated / Free'd bytes: %llu / %llu", argv[0], nDPIsrvd_alloc_bytes, nDPIsrvd_free_bytes); logger(1, "%s: Allocated / Free'd count: %llu / %llu", argv[0], nDPIsrvd_alloc_count, nDPIsrvd_free_count); return 1; } if (nDPId_return.cur_active_flows != 0 || nDPId_return.cur_idle_flows != 0) { logger(1, "%s: %s [%llu / %llu]", argv[0], "Active / Idle inconsistency detected.", nDPId_return.cur_active_flows, nDPId_return.cur_idle_flows); return 1; } if (nDPId_return.total_skipped_flows != 0) { logger(1, "%s: %s [%llu]", argv[0], "Skipped flow detected, that should not happen.", nDPId_return.total_skipped_flows); return 1; } if (nDPId_return.total_events_serialized != distributor_return.stats.total_events_deserialized || nDPId_return.total_events_serialized != distributor_return.stats.total_events_serialized) { logger(1, "%s: Event count of nDPId and distributor not equal: %llu != %llu", argv[0], nDPId_return.total_events_serialized, distributor_return.stats.total_events_deserialized); return 1; } if (nDPId_return.packets_processed != distributor_return.stats.total_packets_processed) { logger(1, "%s: Total nDPId and distributor packets processed not equal: %llu != %llu", argv[0], nDPId_return.packets_processed, distributor_return.stats.total_packets_processed); return 1; } if (nDPId_return.total_l4_payload_len != distributor_return.stats.total_l4_payload_len) { logger(1, "%s: Total processed layer4 payload length of nDPId and distributor not equal: %llu != %llu", argv[0], nDPId_return.total_l4_payload_len, distributor_return.stats.total_l4_payload_len); return 1; } if (distributor_return.stats.flow_new_count != distributor_return.stats.flow_end_count + distributor_return.stats.flow_idle_count) { logger(1, "%s: Amount of flow 'new' events received is not equal to the amount of 'end' plus 'idle': %llu != " "%llu + %llu", argv[0], distributor_return.stats.flow_new_count, distributor_return.stats.flow_end_count, distributor_return.stats.flow_idle_count); return 1; } if (nDPId_return.total_active_flows != distributor_return.stats.flow_end_count + distributor_return.stats.flow_idle_count) { logger(1, "%s: Amount of total active flows is not equal to the amount of received 'end' plus 'idle' events: " "%llu != %llu + %llu", argv[0], nDPId_return.total_active_flows, distributor_return.stats.flow_end_count, distributor_return.stats.flow_idle_count); return 1; } if (nDPId_return.total_idle_flows != distributor_return.stats.flow_idle_count + distributor_return.stats.flow_end_count) { logger(1, "%s: Amount of total idle flows is not equal to the amount of received 'idle' events: %llu != %llu", argv[0], nDPId_return.total_idle_flows, distributor_return.stats.flow_idle_count); return 1; } if (nDPId_return.not_detected_flow_protocols != distributor_return.stats.flow_not_detected_count) { logger(1, "%s: Amount of total undetected flows is not equal to the amount of received 'not-detected' events: " "%llu != %llu", argv[0], nDPId_return.not_detected_flow_protocols, distributor_return.stats.flow_not_detected_count); return 1; } if (nDPId_return.guessed_flow_protocols != distributor_return.stats.flow_guessed_count) { logger(1, "%s: Amount of total guessed flows is not equal to the amount of received 'guessed' events: %llu != " "%llu", argv[0], nDPId_return.guessed_flow_protocols, distributor_return.stats.flow_guessed_count); return 1; } if (nDPId_return.detected_flow_protocols != distributor_return.stats.flow_detected_count) { logger(1, "%s: Amount of total detected flows not equal to the amount of received 'detected' events: %llu != " "%llu", argv[0], nDPId_return.detected_flow_protocols, distributor_return.stats.flow_detected_count); return 1; } if (nDPId_return.flow_detection_updates != distributor_return.stats.flow_detection_update_count) { logger(1, "%s: Amount of total detection updates is not equal to the amount of received 'detection-update' " "events: %llu != %llu", argv[0], nDPId_return.flow_detection_updates, distributor_return.stats.flow_detection_update_count); return 1; } if (nDPId_return.flow_updates != distributor_return.stats.flow_update_count) { logger(1, "%s: Amount of total flow updates is not equal to the amount of received 'update' events: %llu != " "%llu", argv[0], nDPId_return.flow_updates, distributor_return.stats.flow_update_count); return 1; } if (nDPId_return.total_active_flows != distributor_return.stats.flow_detected_count + distributor_return.stats.flow_guessed_count + distributor_return.stats.flow_not_detected_count) { logger(1, "%s: Amount of total active flows not equal to the amount of received 'detected', 'guessed and " "'not-detected' flow events: %llu != " "%llu + %llu + %llu", argv[0], nDPId_return.total_active_flows, distributor_return.stats.flow_detected_count, distributor_return.stats.flow_guessed_count, distributor_return.stats.flow_not_detected_count); return 1; } if (distributor_return.stats.instance_user_data.daemon_event_count != distributor_return.stats.thread_user_data.daemon_event_count) { logger(1, "%s: Amount of received daemon events differs between instance and thread: %llu != %llu", argv[0], distributor_return.stats.instance_user_data.daemon_event_count, distributor_return.stats.thread_user_data.daemon_event_count); return 1; } if (distributor_return.stats.instance_user_data.flow_cleanup_count - distributor_return.stats.total_flow_timeouts != distributor_return.stats.flow_end_count + distributor_return.stats.flow_idle_count) { logger(1, "%s: Amount of flow cleanup callback calls differs between received 'end' and 'idle' flow events: %llu " "!= %llu + %llu", argv[0], distributor_return.stats.instance_user_data.flow_cleanup_count - distributor_return.stats.total_flow_timeouts, distributor_return.stats.flow_end_count, distributor_return.stats.flow_idle_count); return 1; } if (distributor_return.stats.flow_new_count != distributor_return.stats.thread_user_data.flow_new_count || distributor_return.stats.flow_end_count != distributor_return.stats.thread_user_data.flow_end_count || distributor_return.stats.flow_idle_count != distributor_return.stats.thread_user_data.flow_idle_count) { logger(1, "%s: Thread user data counters not equal to the global user data counters: %llu != %llu or %llu != %llu " "or %llu != %llu", argv[0], distributor_return.stats.flow_new_count, distributor_return.stats.thread_user_data.flow_new_count, distributor_return.stats.flow_end_count, distributor_return.stats.thread_user_data.flow_end_count, distributor_return.stats.flow_idle_count, distributor_return.stats.thread_user_data.flow_idle_count); return 1; } #ifdef ENABLE_ZLIB if (MT_GET_AND_ADD(zlib_compressions, 0) != MT_GET_AND_ADD(zlib_decompressions, 0)) { logger(1, "%s: %s (%llu != %llu)", argv[0], "ZLib compression / decompression inconsistency detected.", (unsigned long long int)MT_GET_AND_ADD(zlib_compressions, 0), (unsigned long long int)MT_GET_AND_ADD(zlib_decompressions, 0)); return 1; } if (nDPId_return.current_compression_diff != 0) { logger(1, "%s: %s (%llu bytes)", argv[0], "ZLib compression inconsistency detected. It should be 0.", nDPId_return.current_compression_diff); return 1; } if (nDPId_return.total_compressions != MT_GET_AND_ADD(zlib_compressions, 0)) { logger(1, "%s: %s (%llu != %llu)", argv[0], "ZLib global<->workflow compression / decompression inconsistency detected.", (unsigned long long int)MT_GET_AND_ADD(zlib_compressions, 0), nDPId_return.current_compression_diff); return 1; } if (nDPId_return.total_compression_diff != MT_GET_AND_ADD(zlib_compression_bytes, 0)) { logger(1, "%s: %s (%llu bytes != %llu bytes)", argv[0], "ZLib global<->workflow compression / decompression inconsistency detected.", (unsigned long long int)MT_GET_AND_ADD(zlib_compression_bytes, 0), nDPId_return.total_compression_diff); return 1; } #endif return 0; }