patch to fix RHBZ 1319858, 1319861

#2781)

.gitignore

@@ -0,0 +1,3 @@
+vtun-3.0.1.tar.gz
+/vtun-3.0.1.tar.gz
+/vtun-3.0.3.tar.gz

dead.package

@@ -1 +0,0 @@
-Orphaned for 6+ weeks

sources

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+c342ffe77055d4248a38f0b380f28c1b  vtun-3.0.1.tar.gz

vtun-client-sighup.patch

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+When sending a SIGHUP to a vtun client process which is unable to connect
+to the remote server, it will attempt to reconnect without sleeping between
+consecutive attempts. This results in a CPU usage spike, and a flood of
+data sent to syslog.
+This patch causes the first sleep after SIGHUP to be discarded, then allows
+sleep to be used again in subsequent iterations.
+diff -NarU5 a/client.c b/client.c
+--- a/client.c	2006-12-11 02:55:06.000000000 -0500
++++ b/client.c	2016-03-21 14:41:09.014377581 -0400
+@@ -129,10 +129,11 @@
+         vtun_syslog(LOG_INFO,"Connecting to %s", vtun.svr_name);
+ 
+         if( connect_t(s,(struct sockaddr *) &svr_addr, host->timeout) ){
+ 	   vtun_syslog(LOG_INFO,"Connect to %s failed. %s(%d)", vtun.svr_name,
+ 					strerror(errno), errno);
++	   client_term = 0;
+         } else {
+ 	   if( auth_client(s, host) ){   
+ 	      vtun_syslog(LOG_INFO,"Session %s[%s] opened",host->host,vtun.svr_name);
+ 
+  	      host->rmt_fd = s;
+@@ -141,10 +142,11 @@
+ 	      client_term = tunnel(host);
+ 
+ 	      vtun_syslog(LOG_INFO,"Session %s[%s] closed",host->host,vtun.svr_name);
+ 	   } else {
+ 	      vtun_syslog(LOG_INFO,"Connection denied by %s",vtun.svr_name);
++	      client_term = 0;
+ 	   }
+ 	}
+ 	close(s);
+ 	free_sopt(&host->sopt);
+      }

vtun.spec

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+Name: vtun
+Version: 3.0.1
+Release: 10%{?dist}
+Summary: Virtual tunnel over TCP/IP networks
+License: GPLv2+
+Group: System Environment/Daemons
+Url: http://vtun.sourceforge.net
+Source0: http://prdownloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
+Source1: vtund.init
+Patch0: vtun-client-sighup.patch
+BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+Requires: xinetd
+Requires(post): /sbin/chkconfig
+Requires(preun): /sbin/service /sbin/chkconfig
+Requires(postun): /sbin/service 
+BuildRequires: zlib-devel lzo-devel openssl-devel bison flex
+
+%description
+VTun provides a method for creating Virtual Tunnels over TCP/IP networks
+and allows one to shape, compress, and encrypt traffic in those tunnels.
+Supported types of tunnels are: PPP, IP, Ethernet and most other serial
+protocols and programs.
+VTun is easily and highly configurable: it can be used for various
+network tasks like VPN, Mobile IP, Shaped Internet access, IP address
+saving, etc. It is completely a user space implementation and does not
+require modification to any kernel parts.
+
+%prep
+%setup -q
+%patch0 -p1
+
+%build
+%configure
+%{__make} %{?_smp_mflags}
+
+%install
+%{__rm} -rf %{buildroot}
+%{__install} -D -m 0755 -p %{SOURCE1} %{buildroot}/%{_initrddir}/vtund
+%{__install} -D -m 0644 -p scripts/vtund.xinetd %{buildroot}/%{_sysconfdir}/xinetd.d/vtun
+%{__sed} -i 's:/usr/local:%{_prefix}:' %{buildroot}/%{_sysconfdir}/xinetd.d/vtun
+%{__make} install DESTDIR=%{buildroot} INSTALL_OWNER= INSTALL="/usr/bin/install -p"
+
+%clean
+%{__rm} -rf %{buildroot}
+
+%post
+if [ $1 -eq 1 ]; then
+	/sbin/chkconfig --add vtund || :
+fi
+
+%preun
+if [ $1 -eq 0 ]; then
+	/sbin/service vtund stop >/dev/null 2>&1 || :
+	/sbin/chkconfig --del vtund || :
+fi
+
+%postun
+if [ $1 -eq 1 ]; then
+	/sbin/service vtund condrestart >/dev/null 2>&1 || :
+fi
+
+%files
+%defattr(-,root,root,-)
+%doc ChangeLog Credits FAQ README README.LZO README.Setup README.Shaper TODO vtund.conf
+%config(noreplace) %{_sysconfdir}/vtund.conf
+%config(noreplace) %{_sysconfdir}/xinetd.d/vtun
+%{_initrddir}/vtund
+%{_sbindir}/vtund
+%dir %{_localstatedir}/log/vtund
+%dir %{_localstatedir}/lock/vtund
+%{_mandir}/man5/vtund.conf.5*
+%{_mandir}/man8/vtun.8*
+%{_mandir}/man8/vtund.8*
+
+%changelog
+* Mon Mar 21 2016 Gabriel Somlo <somlo at cmu.edu> 3.0.1-10
+- patch to fix RHBZ 1319858, 1319860
+- bump release past (el6 & Fedora specific) attempts to add systemd support
+* Mon Nov 17 2008 Gabriel Somlo <somlo at cmu.edu> 3.0.1-3
+- scriptlets fixes
+* Fri Nov 14 2008 Gabriel Somlo <somlo at cmu.edu> 3.0.1-2
+- spec file fixes: defattr, -p flag to install program
+* Mon Oct 20 2008 Gabriel Somlo <somlo at cmu.edu> 3.0.1-1
+- initial fedora package

vtund.init

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+#!/bin/sh
+#
+# vtund	       Startup script for the virtual tunnel daemon
+#
+# chkconfig:   - 55 45
+# description: Virtual Tunnel Daemon provides the facility to create \
+#              virtual tunnels over TCP/IP networks and allows for \
+#              shaping, compression, and encryption of tunneled traffic.
+
+### BEGIN INIT INFO
+# Provides: 
+# Required-Start: 
+# Required-Stop: 
+# Should-Start: 
+# Should-Stop: 
+# Default-Start: 
+# Default-Stop: 
+# Short-Description: 
+# Description:      
+### END INIT INFO
+
+# Source function library.
+. /etc/rc.d/init.d/functions
+
+exec="/usr/sbin/vtund"
+prog="vtund"
+config="/etc/vtund.conf"
+
+[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
+
+lockfile=/var/lock/subsys/$prog
+
+start() {
+    [ -x $exec ] || exit 5
+    [ -f $config ] || exit 6
+    echo -n $"Starting $prog: "
+    daemon $exec -s
+    retval=$?
+    echo
+    [ $retval -eq 0 ] && touch $lockfile
+    return $retval
+}
+
+stop() {
+    echo -n $"Stopping $prog: "
+    killproc $prog
+    retval=$?
+    echo
+    [ $retval -eq 0 ] && rm -f $lockfile
+    return $retval
+}
+
+restart() {
+    stop
+    start
+}
+
+reload() {
+    echo -n $"Reloading config for $prog: "
+    killproc $prog -HUP
+    retval=$?
+    echo
+    return $retval
+}
+
+force_reload() {
+    restart
+}
+
+rh_status() {
+    # run checks to determine if the service is running or use generic status
+    status $prog
+}
+
+rh_status_q() {
+    rh_status >/dev/null 2>&1
+}
+
+
+case "$1" in
+    start)
+        rh_status_q && exit 0
+        $1
+        ;;
+    stop)
+        rh_status_q || exit 0
+        $1
+        ;;
+    restart)
+        $1
+        ;;
+    reload)
+        rh_status_q || exit 7
+        $1
+        ;;
+    force-reload)
+        force_reload
+        ;;
+    status)
+        rh_status
+        ;;
+    condrestart|try-restart)
+        rh_status_q || exit 0
+        restart
+        ;;
+    *)
+        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
+        exit 2
+esac
+exit $?