Patches sent by India based on Security review.
This commit is contained in:
Jim Norman
@@ -20,205 +20,208 @@
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*
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***********************************************************************/
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using System;
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using System.IO;
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using System.Text;
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using System.Threading;
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using System.Diagnostics;
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using sscs.communication;
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using sscs.constants;
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using sscs.common;
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class SecretStoreClientService
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{
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private static Communication server = null;
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private static Thread listeningThread = null;
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public static void Main(string[] args)
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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try
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{
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/* If getting a lock fails, just exit.
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*/
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if(!AcquireLock())
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{
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Console.WriteLine("Another instance of micasad is already running");
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Mono.Unix.Native.Syscall.exit(-1);
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}
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RegisterSignals();
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CSSSLogger.DbgLog("Client Side SecretStore Service has started.");
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server = CommunicationFactory.CreateCommunicationEndPoint();
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listeningThread = new Thread(new ThreadStart(StartServer));
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listeningThread.Start();
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listeningThread.Join();
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}
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catch(Exception e)
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{
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Terminate();
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}
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}
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/* The thread which listens and spawns threads on every accept
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* starts its execution from this method.
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*/
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private static void StartServer()
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{
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try
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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server.StartCommunicationEndPoint();
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}
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catch(ThreadAbortException exp)
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{
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CSSSLogger.DbgLog("Listening thread of miCASAd is going down.");
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CSSSLogger.ExpLog(exp.ToString());
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}
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catch(Exception exp)
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{
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CSSSLogger.ExpLog(exp.ToString());
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}
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CSSSLogger.DbgLog("Listening thread of miCASAd is going down.");
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}
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/* This ensures that there is only one instance of
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* SSCS at any point.
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*/
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private static bool AcquireLock()
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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int platform = (int)Environment.OSVersion.Platform;
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if( (platform == 128) || (platform == 4) )
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{
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if(File.Exists(ConstStrings.SSCS_LINUX_PIDFILE))
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{
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if(CheckIfMiCASAdIsRunning())
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{
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CSSSLogger.DbgLog("Acquiring lock failed. Terminating miCASAd.");
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return false;
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}
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else
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{
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File.Delete(ConstStrings.SSCS_LINUX_PIDFILE);
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CreatePidFile();
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return true;
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}
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}
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else
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{
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CreatePidFile();
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return true;
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}
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}
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else
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return false;
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}
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private static void RegisterSignals()
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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if(( (int)Environment.OSVersion.Platform) == 128)
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{
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//SIGTERM
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Mono.Unix.Native.Stdlib.signal(Mono.Unix.Native.Signum.SIGTERM, new Mono.Unix.Native.SignalHandler(Terminate));
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//SIGINT
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Mono.Unix.Native.Stdlib.signal(Mono.Unix.Native.Signum.SIGINT, new Mono.Unix.Native.SignalHandler(Terminate));
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//SIGHUP
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Mono.Unix.Native.Stdlib.signal(Mono.Unix.Native.Signum.SIGHUP, new Mono.Unix.Native.SignalHandler(Terminate));
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}
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}
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private static void Terminate(int sigNum)
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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Terminate();
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}
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private static void Terminate()
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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CSSSLogger.DbgLog("Client Side SecretStore Service is now exiting.");
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if( listeningThread != null )
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{
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listeningThread.Abort("Aborting listening thread");
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}
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int platform = (int)Environment.OSVersion.Platform;
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if( (platform == 128) || (platform == 4) )
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{
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if( File.Exists(ConstStrings.SSCS_LINUX_PIDFILE) )
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{
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File.Delete(ConstStrings.SSCS_LINUX_PIDFILE);
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}
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Mono.Unix.Native.Syscall.exit(0);
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}
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}
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private static void CreatePidFile()
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{
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int pid = Mono.Unix.Native.Syscall.getpid();
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string pidStr = String.Format("{0}",pid);
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FileInfo fInfo = new FileInfo(ConstStrings.SSCS_LINUX_PIDFILE);
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FileStream fs = fInfo.Open(System.IO.FileMode.OpenOrCreate, FileAccess.ReadWrite);
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StreamWriter w = new StreamWriter(fs);
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w.Write(pidStr);
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w.Flush();
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fs.Close();
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}
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private static bool CheckIfMiCASAdIsRunning()
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{
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try
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{
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StreamReader sr = new StreamReader(ConstStrings.SSCS_LINUX_PIDFILE);
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string line = sr.ReadLine();
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if( line == null )
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{
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sr.Close();
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return false;
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}
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string procPath = "/proc/"+ line + "/cmdline";
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/* If the file procPath itself does not exist,
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* then another instance is surely not running.
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*/
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if( !File.Exists(procPath) )
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{
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return false;
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}
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/* There is a possibility that the pid stored in
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* the pidfile has been reassigned to another process.
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* So, if procPath exists, check if the process is
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* micasad.exe.
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*/
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StreamReader procReader = new StreamReader(procPath);
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string cmdline = procReader.ReadLine();
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/*
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string assemblyName = (System.Reflection.MethodBase.GetCurrentMethod().DeclaringType).Assembly.FullName + ".exe\0";
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*/
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string assemblyName = "micasad.exe\0";
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if(cmdline.EndsWith(assemblyName))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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catch(Exception e)
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{
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return false;
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}
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}
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}
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using System;
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using System.IO;
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using System.Text;
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using System.Threading;
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using System.Diagnostics;
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using sscs.communication;
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using sscs.constants;
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using sscs.common;
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class SecretStoreClientService
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{
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private static Communication server = null;
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private static Thread listeningThread = null;
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public static void Main(string[] args)
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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try
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{
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/* If getting a lock fails, just exit.
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*/
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if(!AcquireLock())
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{
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Console.WriteLine("Another instance of micasad is already running");
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Mono.Unix.Native.Syscall.exit(-1);
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}
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RegisterSignals();
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Mono.Unix.Native.Syscall.umask( Mono.Unix.Native.FilePermissions.S_IRGRP |
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Mono.Unix.Native.FilePermissions.S_IWGRP |
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Mono.Unix.Native.FilePermissions.S_IROTH |
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Mono.Unix.Native.FilePermissions.S_IWOTH);
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CSSSLogger.DbgLog("Client Side SecretStore Service has started.");
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server = CommunicationFactory.CreateCommunicationEndPoint();
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listeningThread = new Thread(new ThreadStart(StartServer));
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listeningThread.Start();
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listeningThread.Join();
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}
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catch(Exception e)
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{
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Terminate();
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}
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}
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/* The thread which listens and spawns threads on every accept
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* starts its execution from this method.
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*/
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private static void StartServer()
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{
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try
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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server.StartCommunicationEndPoint();
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}
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catch(ThreadAbortException exp)
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{
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CSSSLogger.DbgLog("Listening thread of miCASAd is going down.");
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CSSSLogger.ExpLog(exp.ToString());
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}
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catch(Exception exp)
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{
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CSSSLogger.ExpLog(exp.ToString());
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}
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CSSSLogger.DbgLog("Listening thread of miCASAd is going down.");
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}
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/* This ensures that there is only one instance of
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* SSCS at any point.
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*/
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private static bool AcquireLock()
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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int platform = (int)Environment.OSVersion.Platform;
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if( (platform == 128) || (platform == 4) )
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{
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if(File.Exists(ConstStrings.SSCS_LINUX_PIDFILE))
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{
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if(CheckIfMiCASAdIsRunning())
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{
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CSSSLogger.DbgLog("Acquiring lock failed. Terminating miCASAd.");
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return false;
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}
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else
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{
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File.Delete(ConstStrings.SSCS_LINUX_PIDFILE);
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CreatePidFile();
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return true;
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}
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}
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else
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{
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CreatePidFile();
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return true;
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}
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}
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else
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return false;
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}
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private static void RegisterSignals()
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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if(( (int)Environment.OSVersion.Platform) == 128)
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{
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//SIGTERM
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Mono.Unix.Native.Stdlib.signal(Mono.Unix.Native.Signum.SIGTERM, new Mono.Unix.Native.SignalHandler(Terminate));
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//SIGINT
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Mono.Unix.Native.Stdlib.signal(Mono.Unix.Native.Signum.SIGINT, new Mono.Unix.Native.SignalHandler(Terminate));
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//SIGHUP
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Mono.Unix.Native.Stdlib.signal(Mono.Unix.Native.Signum.SIGHUP, new Mono.Unix.Native.SignalHandler(Terminate));
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}
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}
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private static void Terminate(int sigNum)
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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Terminate();
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}
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private static void Terminate()
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{
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CSSSLogger.ExecutionTrace(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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CSSSLogger.DbgLog("Client Side SecretStore Service is now exiting.");
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if( listeningThread != null )
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{
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listeningThread.Abort("Aborting listening thread");
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}
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int platform = (int)Environment.OSVersion.Platform;
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if( (platform == 128) || (platform == 4) )
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{
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if( File.Exists(ConstStrings.SSCS_LINUX_PIDFILE) )
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{
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File.Delete(ConstStrings.SSCS_LINUX_PIDFILE);
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}
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Mono.Unix.Native.Syscall.exit(0);
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}
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}
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private static void CreatePidFile()
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{
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int pid = Mono.Unix.Native.Syscall.getpid();
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string pidStr = String.Format("{0}",pid);
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FileInfo fInfo = new FileInfo(ConstStrings.SSCS_LINUX_PIDFILE);
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FileStream fs = fInfo.Open(System.IO.FileMode.OpenOrCreate, FileAccess.ReadWrite);
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StreamWriter w = new StreamWriter(fs);
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w.Write(pidStr);
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w.Flush();
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fs.Close();
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}
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private static bool CheckIfMiCASAdIsRunning()
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{
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try
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{
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StreamReader sr = new StreamReader(ConstStrings.SSCS_LINUX_PIDFILE);
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string line = sr.ReadLine();
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if( line == null )
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{
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sr.Close();
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return false;
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}
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string procPath = "/proc/"+ line + "/cmdline";
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/* If the file procPath itself does not exist,
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* then another instance is surely not running.
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*/
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if( !File.Exists(procPath) )
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{
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return false;
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}
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/* There is a possibility that the pid stored in
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* the pidfile has been reassigned to another process.
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* So, if procPath exists, check if the process is
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* micasad.exe.
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*/
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StreamReader procReader = new StreamReader(procPath);
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string cmdline = procReader.ReadLine();
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/*
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string assemblyName = (System.Reflection.MethodBase.GetCurrentMethod().DeclaringType).Assembly.FullName + ".exe\0";
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*/
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string assemblyName = "micasad.exe\0";
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if(cmdline.EndsWith(assemblyName))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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catch(Exception e)
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{
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return false;
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}
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}
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}
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Block a user