Fix password prompt on systemd systems

2 files changed, 42 insertions, 0 deletions

diff --git a/debian/patches/password_prompt_in_systemd.patch b/debian/patches/password_prompt_in_systemd.patch
new file mode 100644
index 0000000..f245881
--- /dev/null
+++ b/debian/patches/password_prompt_in_systemd.patch
@@ -0,0 +1,41 @@
+Index: openvpn-2.3.8/src/openvpn/console.c
+===================================================================
+--- openvpn-2.3.8.orig/src/openvpn/console.c
++++ openvpn-2.3.8/src/openvpn/console.c
+@@ -208,6 +208,19 @@ get_console_input (const char *prompt, c
+ #if defined(WIN32)
+   return get_console_input_win32 (prompt, echo, input, capacity);
+ #elif defined(HAVE_GETPASS)
++
++  /* did we --daemon'ize before asking for passwords?
++   * (in which case neither stdin or stderr are connected to a tty and
++   * /dev/tty can not be open()ed anymore)
++   */
++  if ( !isatty(0) && !isatty(2) )
++    {
++      int fd = open( "/dev/tty", O_RDWR );
++      if ( fd < 0 )
++	{ msg(M_FATAL, "neither stdin nor stderr are a tty device and you have neither a controlling tty nor systemd - can't ask for '%s'.  If you used --daemon, you need to use --askpass to make passphrase-protected keys work, and you can not use --auth-nocache.", prompt ); }
++      close(fd);
++    }
++
+   if (echo)
+     {
+       FILE *fp;
+Index: openvpn-2.3.8/src/openvpn/misc.c
+===================================================================
+--- openvpn-2.3.8.orig/src/openvpn/misc.c
++++ openvpn-2.3.8/src/openvpn/misc.c
+@@ -1088,12 +1088,6 @@ get_user_pass_cr (struct user_pass *up,
+        */
+       else if (from_stdin)
+ 	{
+-#ifndef WIN32
+-	  /* did we --daemon'ize before asking for passwords? */
+-	  if ( !isatty(0) && !isatty(2) )
+-	    { msg(M_FATAL, "neither stdin nor stderr are a tty device, can't ask for %s password.  If you used --daemon, you need to use --askpass to make passphrase-protected keys work, and you can not use --auth-nocache.", prefix ); }
+-#endif
+-
+ #ifdef ENABLE_CLIENT_CR
+ 	  if (auth_challenge && (flags & GET_USER_PASS_DYNAMIC_CHALLENGE))
+ 	    {
diff --git a/debian/patches/series b/debian/patches/series
index f37465a..64e73f4 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -6,3 +6,4 @@ route_default_nil.patch
 kfreebsd_support.patch
 accommodate_typo.patch
 manpage_fixes.patch
+password_prompt_in_systemd.patch