big svn cleanup

1 files changed, 181 insertions, 0 deletions

diff --git a/src/anytun-controld.cpp b/src/anytun-controld.cpp
new file mode 100644
index 0000000..204694e
--- /dev/null
+++ b/src/anytun-controld.cpp
@@ -0,0 +1,181 @@
+/*
+ *  anytun
+ *
+ *  The secure anycast tunneling protocol (satp) defines a protocol used
+ *  for communication between any combination of unicast and anycast
+ *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
+ *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
+ *  ethernet, ip, arp ...). satp directly includes cryptography and
+ *  message authentication based on the methodes used by SRTP.  It is
+ *  intended to deliver a generic, scaleable and secure solution for
+ *  tunneling and relaying of packets of any protocol.
+ *
+ *
+ *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program (see the file COPYING included with this
+ *  distribution); if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <iostream>
+#include <fstream>
+#include <poll.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <grp.h>
+
+#include "datatypes.h"
+
+#include "log.h"
+#include "signalController.h"
+#include "anymuxOptions.h"
+
+#include "muxSocket.h"
+#include "Sockets/ListenSocket.h"
+#include "Sockets/SocketHandler.h"
+
+
+class ThreadParam
+{
+public:
+  ThreadParam() : addr(""), port(0) {};
+  std::string addr;
+  u_int16_t port;
+};
+
+
+void* syncListener(void* p )
+{
+  ThreadParam* param = reinterpret_cast<ThreadParam*>(p);
+	SOCKETS_NAMESPACE::SocketHandler h;
+	SOCKETS_NAMESPACE::ListenSocket<MuxSocket> l(h,true);
+
+	if( l.Bind(param->addr, param->port) )
+		pthread_exit(NULL);
+
+	Utility::ResolveLocal(); // resolve local hostname
+	h.Add(&l);
+	h.Select(1,0);
+	while (1) {
+		h.Select(1,0);
+	}
+}
+
+void chrootAndDrop(std::string const& chrootdir, std::string const& username)
+{
+	if (getuid() != 0)
+	{
+	  std::cerr << "this programm has to be run as root in order to run in a chroot" << std::endl;
+		exit(-1);
+	}	
+
+  struct passwd *pw = getpwnam(username.c_str());
+	if(pw) {
+		if(chroot(chrootdir.c_str()))
+		{
+      std::cerr << "can't chroot to " << chrootdir << std::endl;
+      exit(-1);
+		}
+    cLog.msg(Log::PRIO_NOTICE) << "we are in chroot jail (" << chrootdir << ") now" << std::endl;
+    chdir("/");
+		if (initgroups(pw->pw_name, pw->pw_gid) || setgid(pw->pw_gid) || setuid(pw->pw_uid)) 
+		{
+			std::cerr << "can't drop to user " << username << " " << pw->pw_uid << ":" << pw->pw_gid << std::endl;
+			exit(-1);
+		}
+    cLog.msg(Log::PRIO_NOTICE) << "dropped user to " << username << " " << pw->pw_uid << ":" << pw->pw_gid << std::endl;
+	}
+	else 
+  {
+    std::cerr << "unknown user " << username << std::endl;
+    exit(-1);
+	}
+}
+
+void daemonize()
+{
+  pid_t pid;
+
+  pid = fork();
+  if(pid) exit(0);  
+  setsid();
+  pid = fork();
+  if(pid) exit(0);
+  
+//  std::cout << "running in background now..." << std::endl;
+
+  int fd;
+//  for (fd=getdtablesize();fd>=0;--fd) // close all file descriptors
+  for (fd=0;fd<=2;fd++) // close all file descriptors
+    close(fd);
+  fd=open("/dev/null",O_RDWR);        // stdin
+  dup(fd);                            // stdout
+  dup(fd);                            // stderr
+  umask(027); 
+}
+
+int main(int argc, char* argv[])
+{
+  if(!gOpt.parse(argc, argv))
+  {
+    gOpt.printUsage();
+    exit(-1);
+  }
+  
+  std::ifstream file( gOpt.getFileName().c_str() );
+  if( file.is_open() )
+    file.close();
+  else
+  {
+    std::cout << "ERROR: unable to open file!" << std::endl;
+    exit(-1);
+  }
+
+  std::ofstream pidFile;
+  if(gOpt.getPidFile() != "") {
+    pidFile.open(gOpt.getPidFile().c_str());
+    if(!pidFile.is_open()) {
+      std::cout << "can't open pid file" << std::endl;
+    }
+  }
+  
+  if(gOpt.getChroot())
+    chrootAndDrop(gOpt.getChrootDir(), gOpt.getUsername());
+  if(gOpt.getDaemonize())
+    daemonize();
+
+  if(pidFile.is_open()) {
+    pid_t pid = getpid();
+    pidFile << pid;
+    pidFile.close();
+  }
+
+  SignalController sig;
+  sig.init();
+
+  ThreadParam p;
+  p.addr = gOpt.getBindToAddr();
+  p.port = gOpt.getBindToPort(); 
+	pthread_t syncListenerThread;
+	pthread_create(&syncListenerThread, NULL, syncListener, &p);  
+
+	int ret = sig.run();
+
+	pthread_cancel(syncListenerThread);  
+  
+	pthread_join(syncListenerThread, NULL);
+
+  return ret;
+}
+