Make pam.d directory configurable

configure.ac

@@ -464,6 +464,12 @@ if test "x$enable_strict_locations" != "xyes"; then
   localstatedir="/var";
 fi
 
+AC_ARG_WITH([pamconfdir],
+  [AS_HELP_STRING([--with-pamconfdir=DIR],
+                  [Use directory for pam.d config (default: /etc/pam.d)])],
+                  [], [with_pamconfdir="$sysconfdir/pam.d"])
+AC_SUBST([pamconfdir], [$with_pamconfdir])
+
 PKG_INSTALLDIR
 
 AC_CHECK_HEADERS([sys/prctl.h])
@@ -542,6 +548,7 @@ echo "  exec_prefix             $exec_prefix"
 echo "  libdir                  $libdir"
 echo "  bindir                  $bindir"
 echo "  sysconfdir              $sysconfdir"
+echo "  pamconfdir              $pamconfdir"
 echo ""
 echo "  unit tests performable  $perform_unit_tests"
 echo ""

instfiles/pam.d/Makefile.am

@@ -26,7 +26,7 @@ endif
 endif
 endif
 
-pamddir = $(sysconfdir)/pam.d
+pamddir = $(pamconfdir)
 
 pamd_DATA = \
   $(PAMFILE)

sesman/Makefile.am

@@ -8,6 +8,7 @@ AM_CPPFLAGS = \
   -DXRDP_SHARE_PATH=\"${datadir}/xrdp\" \
   -DXRDP_PID_PATH=\"${localstatedir}/run\" \
   -DXRDP_SOCKET_PATH=\"${socketdir}\" \
+  -DXRDP_PAMCONF_PATH=\"${pamconfdir}\" \
   -I$(top_srcdir)/common \
   -I$(top_srcdir)/sesman/libscp
 

sesman/tools/Makefile.am

@@ -4,6 +4,7 @@ AM_CPPFLAGS = \
   -DXRDP_SHARE_PATH=\"${datadir}/xrdp\" \
   -DXRDP_PID_PATH=\"${localstatedir}/run\" \
   -DXRDP_SOCKET_PATH=\"${socketdir}\" \
+  -DXRDP_PAMCONF_PATH=\"${pamconfdir}\" \
   -I$(top_srcdir)/common \
   -I$(top_srcdir)/sesman/libscp \
   -I$(top_srcdir)/sesman

sesman/verify_user_pam.c

@@ -204,7 +204,15 @@ get_service_name(char *service_name)
     service_name[0] = 0;
 
     if (g_file_exist("/etc/pam.d/xrdp-sesman") ||
-            g_file_exist(XRDP_SYSCONF_PATH "/pam.d/xrdp-sesman"))
+#ifdef __LINUX_PAM__
+            /* /usr/lib/pam.d is hardcoded into Linux-PAM */
+            g_file_exist("/usr/lib/pam.d/xrdp-sesman") ||
+#endif
+#ifdef OPENPAM_VERSION
+            /* /usr/local/etc/pam.d is hardcoded into OpenPAM */
+            g_file_exist("/usr/local/etc/pam.d/xrdp-sesman") ||
+#endif
+            g_file_exist(XRDP_PAMCONF_PATH "/xrdp-sesman"))
     {
         g_strncpy(service_name, "xrdp-sesman", 255);
     }