mirror of
https://github.com/BlackLight/Snort_AIPreproc.git
synced 2024-11-23 20:25:12 +01:00
Fixing db, mutex and multithreading small bugs
This commit is contained in:
BlackLight
parent
cbee4cb9fa
commit
1cf36baadf
12 changed files with 251 additions and 156 deletions
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@ -107,13 +107,18 @@ AI_deserialize_alerts ()
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if ( j == 0 )
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{
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if ( !( event_list = ( AI_alert_event* ) malloc ( sizeof ( AI_alert_event ))))
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{
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AI_fatal_err ( "Fatal dynamic memory allocation error", __FILE__, __LINE__ );
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}
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memset ( event_list, 0, sizeof ( AI_alert_event ));
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event_iterator = event_list;
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} else {
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if ( !( event_iterator = ( AI_alert_event* ) malloc ( sizeof ( AI_alert_event ))))
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{
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AI_fatal_err ( "Fatal dynamic memory allocation error", __FILE__, __LINE__ );
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}
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memset ( event_iterator, 0, sizeof ( AI_alert_event ));
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}
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@ -169,7 +174,9 @@ AI_serialize_alerts ( AI_snort_alert **alerts_pool, unsigned int alerts_pool_cou
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for ( i=0; i < alerts_pool_count; i++ )
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{
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if ( !( event = ( AI_alert_event* ) malloc ( sizeof ( AI_alert_event ))))
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{
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AI_fatal_err ( "Fatal dynamic memory allocation error", __FILE__, __LINE__ );
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}
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memset ( event, 0, sizeof ( AI_alert_event ));
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key.gid = alerts_pool[i]->gid;
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@ -74,7 +74,7 @@ AI_serializer_thread ( void *arg )
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pthread_mutex_unlock ( &alerts_pool_mutex );
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}
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pthread_exit ((void*) 0);
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/* pthread_exit ((void*) 0); */
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return (void*) 0;
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} /* ----- end of function AI_serializer_thread ----- */
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@ -95,10 +95,12 @@ AI_alerts_pool_thread ( void *arg )
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if ( !alerts_pool || alerts_pool_count == 0 )
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continue;
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if ( pthread_create ( &serializer_thread, NULL, AI_serializer_thread, NULL ) != 0 )
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{
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AI_fatal_err ( "Failed to create the alerts' serializer thread", __FILE__, __LINE__ );
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}
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AI_serializer_thread((void*) 0);
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/* if ( pthread_create ( &serializer_thread, NULL, AI_serializer_thread, NULL ) != 0 ) */
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/* { */
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/* AI_fatal_err ( "Failed to create the alerts' serializer thread", __FILE__, __LINE__ ); */
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/* } */
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/* if ( pthread_join ( serializer_thread, NULL ) != 0 ) */
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/* { */
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@ -293,22 +295,21 @@ AI_file_alertparser_thread ( void* arg )
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tmp->next = alert;
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}
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if ( pthread_create ( &serializer_thread, NULL, AI_serializer_thread, alert ) != 0 )
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{
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AI_fatal_err ( "Failed to create the alerts' serializer thread", __FILE__, __LINE__ );
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}
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AI_serializer_thread ((void*) alert);
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if ( pthread_join ( serializer_thread, NULL ) != 0 )
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{
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AI_fatal_err ( "Failed to join the alerts' serializer thread", __FILE__, __LINE__ );
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}
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/* if ( pthread_create ( &serializer_thread, NULL, AI_serializer_thread, alert ) != 0 ) */
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/* { */
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/* AI_fatal_err ( "Failed to create the alerts' serializer thread", __FILE__, __LINE__ ); */
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/* } */
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/* if ( pthread_join ( serializer_thread, NULL ) != 0 ) */
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/* { */
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/* AI_fatal_err ( "Failed to join the alerts' serializer thread", __FILE__, __LINE__ ); */
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/* } */
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if ( config->outdbtype != outdb_none )
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{
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if ( pthread_create ( &db_thread, NULL, AI_store_alert_to_db_thread, alert ) != 0 )
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{
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AI_fatal_err ( "Failed to create the alert to db storing thread", __FILE__, __LINE__ );
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}
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AI_store_alert_to_db ( alert );
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}
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in_alert = false;
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18
cluster.c
18
cluster.c
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@ -289,15 +289,17 @@ __AI_merge_alerts ( AI_snort_alert **log )
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alerts_couple->alert1 = tmp;
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alerts_couple->alert2 = tmp2->next;
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if ( pthread_create ( &db_thread, NULL, AI_store_cluster_to_db_thread, alerts_couple ) != 0 )
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{
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AI_fatal_err ( "Failed to create the cluster-to-database thread", __FILE__, __LINE__ );
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}
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AI_store_cluster_to_db ( alerts_couple );
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if ( pthread_join ( db_thread, NULL ) != 0 )
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{
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AI_fatal_err ( "Could not join the cluster-to-database thread", __FILE__, __LINE__ );
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}
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/* if ( pthread_create ( &db_thread, NULL, AI_store_cluster_to_db_thread, alerts_couple ) != 0 ) */
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/* { */
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/* AI_fatal_err ( "Failed to create the cluster-to-database thread", __FILE__, __LINE__ ); */
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/* } */
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/* if ( pthread_join ( db_thread, NULL ) != 0 ) */
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/* { */
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/* AI_fatal_err ( "Could not join the cluster-to-database thread", __FILE__, __LINE__ ); */
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/* } */
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}
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/* Merge the two alerts */
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@ -1468,15 +1468,17 @@ AI_alert_correlation_thread ( void *arg )
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if ( config->outdbtype != outdb_none )
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{
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if ( pthread_create ( &db_thread, NULL, AI_store_correlation_to_db_thread, corr ) != 0 )
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{
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AI_fatal_err ( "Failed to create the correlation-to-database storing thread", __FILE__, __LINE__ );
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}
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AI_store_correlation_to_db ( corr );
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if ( pthread_join ( db_thread, NULL ) != 0 )
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{
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AI_fatal_err ( "Failed to join the correlation-to-database storing thread", __FILE__, __LINE__ );
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}
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/* if ( pthread_create ( &db_thread, NULL, AI_store_correlation_to_db_thread, corr ) != 0 ) */
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/* { */
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/* AI_fatal_err ( "Failed to create the correlation-to-database storing thread", __FILE__, __LINE__ ); */
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/* } */
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/* if ( pthread_join ( db_thread, NULL ) != 0 ) */
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/* { */
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/* AI_fatal_err ( "Failed to join the correlation-to-database storing thread", __FILE__, __LINE__ ); */
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/* } */
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}
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}
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}
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28
db.c
28
db.c
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@ -78,24 +78,27 @@ AI_db_alertparser_thread ( void *arg )
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while ( 1 )
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{
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sleep ( config->databaseParsingInterval );
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pthread_mutex_lock ( &mutex );
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memset ( query, 0, sizeof ( query ));
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snprintf ( query, sizeof (query), "select cid, unix_timestamp(timestamp), signature from event where cid > %d "
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"and unix_timestamp(timestamp) > %ld order by cid", latest_cid, latest_time );
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pthread_mutex_lock ( &mutex );
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if ( !( res = (DB_result) DB_query ( query )))
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{
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pthread_mutex_unlock ( &mutex );
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DB_close();
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AI_fatal_err ( "Fatal error while executing a query on the database", __FILE__, __LINE__ );
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}
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pthread_mutex_unlock ( &mutex );
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if (( rows = DB_num_rows ( res )) < 0 )
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{
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DB_close();
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AI_fatal_err ( "Could not store the query result", __FILE__, __LINE__ );
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} else if ( rows == 0 ) {
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pthread_mutex_unlock ( &mutex );
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continue;
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}
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@ -115,12 +118,17 @@ AI_db_alertparser_thread ( void *arg )
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snprintf ( query, sizeof ( query ), "select sig_gid, sig_sid, sig_rev, sig_name, sig_priority from signature "
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"where sig_id='%ld'", strtol ( row[2], NULL, 0 ));
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pthread_mutex_lock ( &mutex );
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if ( !( res2 = (DB_result) DB_query ( query )))
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{
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pthread_mutex_unlock ( &mutex );
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DB_close();
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AI_fatal_err ( "Fatal error while executing a query on the database", __FILE__, __LINE__ );
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}
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pthread_mutex_unlock ( &mutex );
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if (( rows = DB_num_rows ( res2 )) < 0 ) {
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DB_close();
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AI_fatal_err ( "Could not store the query result", __FILE__, __LINE__ );
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@ -142,12 +150,17 @@ AI_db_alertparser_thread ( void *arg )
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snprintf ( query, sizeof ( query ), "select ip_tos, ip_len, ip_id, ip_ttl, ip_proto, ip_src, ip_dst "
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"from iphdr where cid='%d'", latest_cid);
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pthread_mutex_lock ( &mutex );
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if ( !( res2 = (DB_result) DB_query ( query )))
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{
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pthread_mutex_unlock ( &mutex );
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DB_close();
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AI_fatal_err ( "Fatal error while executing a query on the database", __FILE__, __LINE__ );
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}
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pthread_mutex_unlock ( &mutex );
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if (( rows = DB_num_rows ( res2 )) < 0 ) {
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DB_close();
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AI_fatal_err ( "Could not store the query result", __FILE__, __LINE__ );
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@ -171,12 +184,17 @@ AI_db_alertparser_thread ( void *arg )
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snprintf ( query, sizeof ( query ), "select tcp_sport, tcp_dport, tcp_seq, tcp_ack, tcp_flags, tcp_win "
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"from tcphdr where cid='%d'", latest_cid );
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pthread_mutex_lock ( &mutex );
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if ( !( res2 = (DB_result) DB_query ( query )))
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{
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pthread_mutex_unlock ( &mutex );
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DB_close();
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AI_fatal_err ( "Fatal error while executing a query on the database", __FILE__, __LINE__ );
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}
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pthread_mutex_unlock ( &mutex );
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if (( rows = DB_num_rows ( res2 )) < 0 ) {
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DB_close();
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AI_fatal_err ( "Could not store the query result", __FILE__, __LINE__ );
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@ -218,14 +236,10 @@ AI_db_alertparser_thread ( void *arg )
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}
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}
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pthread_mutex_unlock ( &mutex );
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DB_free_result ( res );
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latest_time = time ( NULL );
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if ( pthread_create ( &serializer_thread, NULL, AI_serializer_thread, alert ) != 0 )
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{
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AI_fatal_err ( "Failed to create the alerts' serializer thread", __FILE__, __LINE__ );
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}
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AI_serializer_thread ((void*) alert);
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}
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DB_close();
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60
mysql.c
60
mysql.c
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@ -79,20 +79,6 @@ __mysql_do_init ( MYSQL **__DB, BOOL is_out )
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return (void*) *__DB;
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}
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PRIVATE MYSQL_RES*
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__mysql_do_query ( MYSQL *__DB, const char *query )
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{
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MYSQL_RES *res = NULL;
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if ( mysql_query ( __DB, query ))
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return NULL;
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if ( !( res = mysql_store_result ( __DB )))
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return NULL;
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return res;
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}
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PRIVATE void
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__mysql_do_close ( MYSQL **__DB )
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{
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@ -103,6 +89,22 @@ __mysql_do_close ( MYSQL **__DB )
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*__DB = NULL;
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}
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PRIVATE MYSQL_RES*
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__mysql_do_query ( MYSQL *__DB, const char *query )
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{
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MYSQL_RES *res = NULL;
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if ( mysql_query ( __DB, query ))
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{
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return NULL;
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}
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if ( !( res = mysql_store_result ( __DB )))
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return NULL;
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return res;
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}
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/* End of private functions */
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/****************************/
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@ -121,9 +123,18 @@ mysql_do_init ()
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return __mysql_do_init ( &db, false );
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}
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BOOL
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mysql_is_gone ()
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{
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return (( mysql_errno ( db ) == CR_SERVER_GONE_ERROR ) || ( mysql_errno ( db ) == CR_SERVER_LOST ));
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}
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MYSQL_RES*
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mysql_do_query ( const char *query )
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{
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if ( !db )
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mysql_do_init();
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return __mysql_do_query ( db, query );
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}
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@ -145,12 +156,6 @@ mysql_do_error ()
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return mysql_error ( db );
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}
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BOOL
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mysql_is_gone ()
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{
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return (( mysql_errno ( db ) == CR_SERVER_GONE_ERROR ) || ( mysql_errno ( db ) == CR_SERVER_LOST ));
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}
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void
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mysql_do_close ()
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{
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@ -171,9 +176,18 @@ mysql_do_out_init ()
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return __mysql_do_init ( &outdb, true );
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}
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BOOL
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mysql_is_out_gone ()
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{
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return (( mysql_errno ( outdb ) == CR_SERVER_GONE_ERROR ) || ( mysql_errno ( outdb ) == CR_SERVER_LOST ));
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}
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MYSQL_RES*
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mysql_do_out_query ( const char *query )
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{
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if ( !outdb )
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mysql_do_out_init();
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return __mysql_do_query ( outdb, query );
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}
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@ -195,12 +209,6 @@ mysql_do_out_error ()
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return mysql_error ( outdb );
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}
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BOOL
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mysql_is_out_gone ()
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{
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return (( mysql_errno ( outdb ) == CR_SERVER_GONE_ERROR ) || ( mysql_errno ( outdb ) == CR_SERVER_LOST ));
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}
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void
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mysql_do_out_close ()
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{
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18
neural.c
18
neural.c
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@ -67,7 +67,6 @@ AI_neural_correlation_weight ()
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double x = 0,
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k = (double) config->alert_correlation_weight / HYPERBOLIC_TANGENT_SOLUTION;
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snprintf ( query, sizeof ( query ), "SELECT count(*) FROM %s", outdb_config[ALERTS_TABLE] );
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pthread_mutex_lock ( &outdb_mutex );
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if ( !DB_out_init() )
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@ -76,16 +75,23 @@ AI_neural_correlation_weight ()
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AI_fatal_err ( "Unable to connect to the database specified in module configuration", __FILE__, __LINE__ );
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}
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pthread_mutex_unlock ( &outdb_mutex );
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snprintf ( query, sizeof ( query ), "SELECT count(*) FROM %s", outdb_config[ALERTS_TABLE] );
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pthread_mutex_lock ( &outdb_mutex );
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if ( !( res = (DB_result) DB_out_query ( query )))
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{
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_dpd.errMsg ( "Warning: Database error while executing the query '%s'\n", query );
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pthread_mutex_unlock ( &outdb_mutex );
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return 0;
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return 0.0;
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}
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pthread_mutex_unlock ( &outdb_mutex );
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row = (DB_row) DB_fetch_row ( res );
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x = strtod ( row[0], NULL );
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DB_free_result ( res );
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pthread_mutex_unlock ( &outdb_mutex );
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return (( exp(x/k) - exp(-x/k) ) / ( exp(x/k) + exp(-x/k) ));
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} /* ----- end of function AI_neural_correlation_weight ----- */
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@ -331,6 +337,8 @@ __AI_som_train ()
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AI_fatal_err ( "Unable to connect to the database specified in module configuration", __FILE__, __LINE__ );
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}
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pthread_mutex_unlock ( &outdb_mutex );
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#ifdef HAVE_LIBMYSQLCLIENT
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snprintf ( query, sizeof ( query ),
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"SELECT gid, sid, rev, unix_timestamp(timestamp), ip_src_addr, ip_dst_addr, tcp_src_port, tcp_dst_port "
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@ -351,8 +359,11 @@ __AI_som_train ()
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);
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#endif
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pthread_mutex_lock ( &outdb_mutex );
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if ( !( res = (DB_result) DB_out_query ( query )))
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{
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_dpd.errMsg ( "Warning: Database error while executing the query '%s'\n", query );
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pthread_mutex_unlock ( &outdb_mutex );
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return;
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}
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@ -405,6 +416,7 @@ __AI_som_train ()
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{
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if ( !( net = som_network_new ( SOM_NUM_ITEMS, config->outputNeuronsPerSide, config->outputNeuronsPerSide )))
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{
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pthread_mutex_unlock ( &neural_mutex );
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AI_fatal_err ( "AIPreproc: Could not create the neural network", __FILE__, __LINE__ );
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}
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152
outdb.c
152
outdb.c
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@ -54,14 +54,14 @@ AI_outdb_mutex_initialize ()
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} /* ----- end of function AI_outdb_mutex_initialize ----- */
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/**
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* \brief Thread for storing an alert to the database
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* \param arg Alert to be stored
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* \brief Store an alert to the database
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* \param alert Alert to be stored
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*/
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void*
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AI_store_alert_to_db_thread ( void *arg )
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void
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AI_store_alert_to_db ( AI_snort_alert *alert )
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{
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char query[65535] = { 0 },
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char query[32768] = { 0 },
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iphdr_id_str[20] = { 0 },
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tcphdr_id_str[20] = { 0 },
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srcip[INET_ADDRSTRLEN],
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|
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@ -77,12 +77,16 @@ AI_store_alert_to_db_thread ( void *arg )
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struct pkt_info *pkt = NULL;
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||||
DB_result res;
|
||||
DB_row row;
|
||||
AI_snort_alert *alert = (AI_snort_alert*) arg;
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
if ( !DB_out_init() )
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
AI_fatal_err ( "Unable to connect to the specified output database", __FILE__, __LINE__ );
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
inet_ntop ( AF_INET, &(alert->ip_src_addr), srcip, INET_ADDRSTRLEN );
|
||||
inet_ntop ( AF_INET, &(alert->ip_dst_addr), dstip, INET_ADDRSTRLEN );
|
||||
|
|
@ -100,24 +104,27 @@ AI_store_alert_to_db_thread ( void *arg )
|
|||
srcip,
|
||||
dstip );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
memset ( query, 0, sizeof ( query ));
|
||||
snprintf ( query, sizeof ( query ), "SELECT MAX(ip_hdr_id) FROM %s", outdb_config[IPV4_HEADERS_TABLE] );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
if ( !( res = (DB_result) DB_out_query ( query )))
|
||||
{
|
||||
_dpd.logMsg ( "AIPreproc: Warning: error in executing query: '%s'\n", query );
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
if ( !( row = (DB_row) DB_fetch_row ( res )))
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
latest_ip_hdr_id = strtoul ( row[0], NULL, 10 );
|
||||
|
|
@ -138,24 +145,27 @@ AI_store_alert_to_db_thread ( void *arg )
|
|||
ntohs (alert->tcp_window ),
|
||||
ntohs (alert->tcp_len ));
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
memset ( query, 0, sizeof ( query ));
|
||||
snprintf ( query, sizeof ( query ), "SELECT MAX(tcp_hdr_id) FROM %s", outdb_config[TCP_HEADERS_TABLE] );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
if ( !( res = (DB_result) DB_out_query ( query )))
|
||||
{
|
||||
_dpd.logMsg ( "AIPreproc: Warning: error in executing query: '%s'\n", query );
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
if ( !( row = (DB_row) DB_fetch_row ( res )))
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
latest_tcp_hdr_id = strtoul ( row[0], NULL, 10 );
|
||||
|
|
@ -206,24 +216,27 @@ AI_store_alert_to_db_thread ( void *arg )
|
|||
tcphdr_id_str );
|
||||
#endif
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
memset ( query, 0, sizeof ( query ));
|
||||
snprintf ( query, sizeof ( query ), "SELECT MAX(alert_id) FROM %s", outdb_config[ALERTS_TABLE] );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
if ( !( res = (DB_result) DB_out_query ( query )))
|
||||
{
|
||||
_dpd.logMsg ( "AIPreproc: Warning: error in executing query: '%s'\n", query );
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
if ( !( row = (DB_row) DB_fetch_row ( res )))
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
latest_alert_id = strtoul ( row[0], NULL, 10 );
|
||||
|
|
@ -250,6 +263,12 @@ AI_store_alert_to_db_thread ( void *arg )
|
|||
if ( !( pkt_data = (unsigned char*) alloca ( 2 * ( pkt_size ) + 1 )))
|
||||
AI_fatal_err ( "Fatal dynamic memory allocation error", __FILE__, __LINE__ );
|
||||
|
||||
if ( pkt->pkt )
|
||||
{
|
||||
if ( pkt->pkt->pkt_data )
|
||||
{
|
||||
if ( strlen ((const char*) pkt->pkt->pkt_data ) != 0 )
|
||||
{
|
||||
DB_out_escape_string (
|
||||
(char**) &pkt_data,
|
||||
(const char*) pkt->pkt->pkt_data,
|
||||
|
|
@ -275,22 +294,25 @@ AI_store_alert_to_db_thread ( void *arg )
|
|||
pkt_data );
|
||||
#endif
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
} /* ----- end of function AI_store_alert_to_db_thread ----- */
|
||||
return;
|
||||
} /* ----- end of function AI_store_alert_to_db ----- */
|
||||
|
||||
/**
|
||||
* \brief Store an alert cluster to database
|
||||
* \param arg Struct pointer containing the couple of alerts to be clustered together
|
||||
* \param alerts_couple Struct pointer containing the couple of alerts to be clustered together
|
||||
*/
|
||||
|
||||
void*
|
||||
AI_store_cluster_to_db_thread ( void *arg )
|
||||
void
|
||||
AI_store_cluster_to_db ( AI_alerts_couple *alerts_couple )
|
||||
{
|
||||
int i;
|
||||
unsigned long cluster1 = 0,
|
||||
|
|
@ -303,35 +325,35 @@ AI_store_cluster_to_db_thread ( void *arg )
|
|||
srcport[10] = { 0 },
|
||||
dstport[10] = { 0 };
|
||||
|
||||
AI_alerts_couple *alerts_couple = (AI_alerts_couple*) arg;
|
||||
AI_couples_cache *found = NULL;
|
||||
DB_result res;
|
||||
DB_row row;
|
||||
BOOL new_cluster = false;
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
/* Check if the couple of alerts is already in our cache, so it already
|
||||
* belongs to the same cluster. If so, just return */
|
||||
HASH_FIND ( hh, couples_cache, alerts_couple, sizeof ( AI_alerts_couple ), found );
|
||||
|
||||
if ( found )
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
/* Initialize the database (it just does nothing if it is already initialized) */
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
if ( !DB_out_init() )
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
AI_fatal_err ( "Unable to connect to the specified output database", __FILE__, __LINE__ );
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
/* If one of the two alerts has no alert_id, simply return */
|
||||
if ( !alerts_couple->alert1->alert_id || !alerts_couple->alert2->alert_id )
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
/* Check if there already exist a cluster containing one of them */
|
||||
|
|
@ -340,14 +362,16 @@ AI_store_cluster_to_db_thread ( void *arg )
|
|||
"SELECT cluster_id FROM %s WHERE alert_id=%lu OR alert_id=%lu",
|
||||
outdb_config[ALERTS_TABLE], alerts_couple->alert1->alert_id, alerts_couple->alert2->alert_id );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
if ( !( res = (DB_result) DB_out_query ( query )))
|
||||
{
|
||||
_dpd.logMsg ( "AIPreproc: Warning: error in executing query: '%s'\n", query );
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
new_cluster = true;
|
||||
|
||||
for ( i=0; (row = (DB_row) DB_fetch_row ( res )); i++ )
|
||||
|
|
@ -379,9 +403,7 @@ AI_store_cluster_to_db_thread ( void *arg )
|
|||
found->alerts_couple = alerts_couple;
|
||||
found->cluster_id = cluster1;
|
||||
HASH_ADD ( hh, couples_cache, alerts_couple, sizeof ( AI_alerts_couple ), found );
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
if ( new_cluster )
|
||||
|
|
@ -403,25 +425,28 @@ AI_store_cluster_to_db_thread ( void *arg )
|
|||
((alerts_couple->alert1->h_node[dst_port]) ? alerts_couple->alert1->h_node[dst_port]->label : dstport)
|
||||
);
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
memset ( query, 0, sizeof ( query ));
|
||||
snprintf ( query, sizeof ( query ),
|
||||
"SELECT MAX(cluster_id) FROM %s", outdb_config[CLUSTERED_ALERTS_TABLE] );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
if ( !( res = (DB_result) DB_out_query ( query )))
|
||||
{
|
||||
_dpd.logMsg ( "AIPreproc: Warning: error in executing query: '%s'\n", query );
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
if ( !( row = (DB_row) DB_fetch_row ( res )))
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
return;
|
||||
}
|
||||
|
||||
latest_cluster_id = strtoul ( row[0], NULL, 10 );
|
||||
|
|
@ -434,7 +459,9 @@ AI_store_cluster_to_db_thread ( void *arg )
|
|||
outdb_config[ALERTS_TABLE], latest_cluster_id,
|
||||
alerts_couple->alert1->alert_id, alerts_couple->alert2->alert_id );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
} else {
|
||||
/* Update the alert marked as 'not clustered' */
|
||||
if ( !cluster1 )
|
||||
|
|
@ -444,14 +471,18 @@ AI_store_cluster_to_db_thread ( void *arg )
|
|||
"UPDATE %s SET cluster_id=%lu WHERE alert_id=%lu",
|
||||
outdb_config[ALERTS_TABLE], cluster2, alerts_couple->alert1->alert_id );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
} else {
|
||||
memset ( query, 0, sizeof ( query ));
|
||||
snprintf ( query, sizeof ( query ),
|
||||
"UPDATE %s SET cluster_id=%lu WHERE alert_id=%lu",
|
||||
outdb_config[ALERTS_TABLE], cluster1, alerts_couple->alert2->alert_id );
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -462,11 +493,7 @@ AI_store_cluster_to_db_thread ( void *arg )
|
|||
found->alerts_couple = alerts_couple;
|
||||
found->cluster_id = cluster1;
|
||||
HASH_ADD ( hh, couples_cache, alerts_couple, sizeof ( AI_alerts_couple ), found );
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return (void*) 0;
|
||||
} /* ----- end of function AI_store_cluster_to_db_thread ----- */
|
||||
} /* ----- end of function AI_store_cluster_to_db ----- */
|
||||
|
||||
|
||||
/**
|
||||
|
|
@ -474,17 +501,21 @@ AI_store_cluster_to_db_thread ( void *arg )
|
|||
* \param arg Structure containing the two alerts to be saved and their correlation
|
||||
*/
|
||||
|
||||
void*
|
||||
AI_store_correlation_to_db_thread ( void *arg )
|
||||
void
|
||||
AI_store_correlation_to_db ( AI_alert_correlation *corr )
|
||||
{
|
||||
char query[1024] = { 0 };
|
||||
AI_alert_correlation *corr = (AI_alert_correlation*) arg;
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
/* Initialize the database (it just does nothing if it is already initialized) */
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
|
||||
if ( !DB_out_init() )
|
||||
{
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
AI_fatal_err ( "Unable to connect to the specified output database", __FILE__, __LINE__ );
|
||||
}
|
||||
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
|
||||
memset ( query, 0, sizeof ( query ));
|
||||
snprintf ( query, sizeof ( query ),
|
||||
|
|
@ -494,12 +525,11 @@ AI_store_correlation_to_db_thread ( void *arg )
|
|||
corr->key.a->alert_id,
|
||||
corr->key.b->alert_id,
|
||||
corr->correlation );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
|
||||
pthread_mutex_lock ( &outdb_mutex );
|
||||
DB_free_result ((DB_result) DB_out_query ( query ));
|
||||
pthread_mutex_unlock ( &outdb_mutex );
|
||||
pthread_exit ((void*) 0);
|
||||
return 0;
|
||||
} /* ----- end of function AI_store_correlation_to_db_thread ----- */
|
||||
} /* ----- end of function AI_store_correlation_to_db ----- */
|
||||
|
||||
#endif
|
||||
|
||||
|
|
|
|||
14
postgresql.c
14
postgresql.c
|
|
@ -200,6 +200,13 @@ unsigned long
|
|||
postgresql_do_escape_string ( char **to, const char *from, unsigned long length )
|
||||
{
|
||||
size_t out_len = 0;
|
||||
|
||||
if ( !from )
|
||||
return 0;
|
||||
|
||||
if ( strlen ( from ) == 0 )
|
||||
return 0;
|
||||
|
||||
*to = (char*) PQescapeByteaConn ( db, (const unsigned char* ) from, (size_t) length, &out_len );
|
||||
return (unsigned long) out_len;
|
||||
}
|
||||
|
|
@ -234,6 +241,13 @@ unsigned long
|
|||
postgresql_do_out_escape_string ( char **to, const char *from, unsigned long length )
|
||||
{
|
||||
size_t out_len = 0;
|
||||
|
||||
if ( !from )
|
||||
return 0;
|
||||
|
||||
if ( strlen ( from ) == 0 )
|
||||
return 0;
|
||||
|
||||
*to = (char*) PQescapeByteaConn ( outdb, (const unsigned char* ) from, (size_t) length, &out_len );
|
||||
return (unsigned long) out_len;
|
||||
}
|
||||
|
|
|
|||
1
spp_ai.c
1
spp_ai.c
|
|
@ -157,6 +157,7 @@ static void AI_init(char *args)
|
|||
AI_fatal_err ( "Failed to create the neural network thread", __FILE__, __LINE__ );
|
||||
}
|
||||
}
|
||||
|
||||
/* Register the preprocessor function, Transport layer, ID 10000 */
|
||||
_dpd.addPreproc(AI_process, PRIORITY_TRANSPORT, 10000, PROTO_BIT__TCP | PROTO_BIT__UDP);
|
||||
DEBUG_WRAP(_dpd.debugMsg(DEBUG_PLUGIN, "Preprocessor: AI is initialized\n"););
|
||||
|
|
|
|||
6
spp_ai.h
6
spp_ai.h
|
|
@ -552,9 +552,9 @@ double AI_neural_correlation_weight ();
|
|||
double AI_bayesian_correlation_weight ();
|
||||
|
||||
void AI_outdb_mutex_initialize ();
|
||||
void* AI_store_alert_to_db_thread ( void* );
|
||||
void* AI_store_cluster_to_db_thread ( void* );
|
||||
void* AI_store_correlation_to_db_thread ( void* );
|
||||
void AI_store_alert_to_db ( AI_snort_alert* );
|
||||
void AI_store_cluster_to_db ( AI_alerts_couple* );
|
||||
void AI_store_correlation_to_db ( AI_alert_correlation* );
|
||||
void* AI_neural_clustering_thread ( void* );
|
||||
AI_alerts_per_neuron* AI_get_alerts_per_neuron ();
|
||||
|
||||
|
|
|
|||
4
stream.c
4
stream.c
|
|
@ -208,6 +208,10 @@ AI_pkt_enqueue ( SFSnortPacket* pkt )
|
|||
tmp = NULL;
|
||||
|
||||
for ( ; found->next; found = found->next ) {
|
||||
/* Stupid memory bug fixed in a stupid and unelegant way */
|
||||
if ( (int) found->next->pkt < 0x100 )
|
||||
break;
|
||||
|
||||
/* If the sequence number of the next packet in the stream
|
||||
* is bigger than the sequence number of the current packet,
|
||||
* place the current packet before that */
|
||||
|
|
|
|||
Loading…
Reference in a new issue