Add logging to file

README.md

@@ -103,6 +103,8 @@ gunzip GeoIPASNum.dat.gz
 
 It's REQUIRED to add all your networks in CIDR form to file /etc/networks_list if form when one subnet on one line. Please aggregate your networks because long networks list will significatly slow down programm. And please change REDIS_SUPPORT = yes to no in Makefile if you do not need traffic counting feature. When you running this software in OpenVZ node you may did not specify networks explicitly, we can read it from file /proc/vz/veip.
 
+You can add whitelist subnets in similar form to /etc/networks_whitelist (CIDR masks too).
+
 Copy standard config file to /etc:
 ```bash
 cp fastnetmon.conf /etc/fastnetmon.conf

fastnetmon.cpp

@@ -130,6 +130,10 @@ int ban_threshold = 20000;
 // Number of lines for sending ben attack details to email
 int ban_details_records_count = 500;
 
+
+// log file
+ofstream log_file("/var/log/fastnetmon.log");
+
 /* Configuration block ends */
 
 /* Our data structs */
@@ -543,6 +547,7 @@ void draw_table(map_for_counters& my_map_packets, direction data_direction, bool
                
                         string pps_as_string = convert_int_to_string(pps);
                         if (file_exists(notify_script_path)) { 
+                            log_file<<"Attack with direction: "<<data_direction_as_string<<" IP: "<<client_ip_as_string<<" Power: "<<pps_as_string<<endl;
                             exec(notify_script_path + " " + client_ip_as_string + " " + data_direction_as_string + " " + pps_as_string);
                         }
                     }
@@ -667,7 +672,11 @@ bool load_our_networks_list() {
     
     subnet white_subnet = std::make_pair(convert_ip_as_string_to_uint("159.253.17.0"), convert_cidr_to_binary_netmask(24));
     whitelist_networks.push_back(white_subnet);
-    
+   
+    if (file_exists("/etc/networks_whitelist")) {
+
+    }
+ 
     // Whet we used unordered_map it will encrease it perfomance
     //DataCounter.reserve(MAP_INITIAL_SIZE);
 
@@ -972,6 +981,7 @@ void calculation_thread() {
     }
 }
 
+
 void calculation_programm() {
     time_t current_time;
     time(&current_time);
@@ -1074,6 +1084,8 @@ void calculation_programm() {
                     // отсылаем детали атаки (отпечаток пакетов) по почте
                     if (file_exists(notify_script_path)) {
                         exec_with_stdin_params(notify_script_path + " " + client_ip_as_string + " " + attack_direction  + " " + pps_as_string, attack_details );
+                        log_file<<"Attack with direction: "<<attack_direction<<" IP: "<<client_ip_as_string<<" Power: "<<pps_as_string<<endl;
+                        log_file<<attack_details<<endl;
                     }
                     // удаляем ключ из деталей атаки, чтобы он не выводился снова и в него не собирался трафик
                     ban_list_details.erase((*ii).first); 
@@ -1121,6 +1133,13 @@ int main(int argc,char **argv) {
     struct pcap_pkthdr hdr;
 #endif 
 
+    if (!log_file.is_open()) {
+        printf("Can’t open log file, plese check filesystem!");
+        exit(1);
+    }
+
+    log_file<<"Read configuration file"<<endl;
+
     load_configuration_file();
 
     time(&start_time);