postup

main.cpp

@@ -13,6 +13,9 @@
 
 #include <boost/program_options.hpp>
 
+namespace po = boost::program_options;
+
+
 in_addr_t remote;
 
 auto cipher = "Mathematics is the art of giving the same name to different things";
@@ -62,30 +65,28 @@ void outbound(int raw, int tun) {
     perror("outbound read");
 }
 
-
-namespace po = boost::program_options;
-
 int main(int argc, char *argv[]) {
 
     po::options_description desc("Allowed options");
     desc.add_options()
             ("help", "produce help message")
             ("IP,i", po::value<std::string>(), "IP to connect")
-            ("dev,d", po::value<std::string>(), "tun device name");
+            ("dev,d", po::value<std::string>(), "tun device name")
+            ("postup,p", po::value<std::string>(), "post up script");
 
-    po::variables_map vm;
-    po::store(po::parse_command_line(argc, argv, desc), vm);
-    po::notify(vm);
+    po::variables_map args;
+    po::store(po::parse_command_line(argc, argv, desc), args);
+    po::notify(args);
 
-    if (vm.count("help") || !vm.count("IP") || !vm.count("dev")) {
+    if (args.count("help") || !args.count("IP") || !args.count("dev")) {
         std::cout << desc << std::endl;
         return -1;
     }
 
     ifreq ifr{};
-    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
-    strcpy(ifr.ifr_name, vm["dev"].as<std::string>().c_str());
-    remote = inet_addr(vm["IP"].as<std::string>().c_str());
+    ifr.ifr_flags = IFF_TUN | IFF_NO_PI | IFF_UP;
+    strcpy(ifr.ifr_name, args["dev"].as<std::string>().c_str());
+    remote = inet_addr(args["IP"].as<std::string>().c_str());
 
     auto raw = socket(AF_INET, SOCK_RAW, IPPROTO_IPIP);
     if (raw < 0) {
@@ -103,6 +104,10 @@ int main(int argc, char *argv[]) {
         return -1;
     }
 
+    if (args.count("postup")) {
+        system(args["postup"].as<std::string>().c_str());
+    }
+
     std::thread t1(inbound, raw, tun);
     std::thread t2(outbound, raw, tun);
     t1.join();