swanctl: Use a ./configure-able swanctl base directory

configure.ac

@@ -56,6 +56,7 @@ ARG_WITH_SUBST([ipseclibdir],        [${libdir%/}/ipsec], [set installation path
 ARG_WITH_SUBST([plugindir],          [${ipseclibdir%/}/plugins], [set the installation path of plugins])
 ARG_WITH_SUBST([imcvdir],            [${ipseclibdir%/}/imcvs], [set the installation path of IMC and IMV dynamic librariers])
 ARG_WITH_SUBST([nm-ca-dir],          [/usr/share/ca-certificates], [directory the NM backend uses to look up trusted root certificates])
+ARG_WITH_SUBST([swanctldir],         [${sysconfdir}/swanctl], [base directory for swanctl configuration files and credentials])
 ARG_WITH_SUBST([linux-headers],      [\${top_srcdir}/src/include], [set directory of linux header files to use])
 ARG_WITH_SUBST([routing-table],      [220], [set routing table to use for IPsec routes])
 ARG_WITH_SUBST([routing-table-prio], [220], [set priority for IPsec routing table])

src/swanctl/Makefile.am

@@ -1,7 +1,5 @@
 sbin_PROGRAMS = swanctl
 
-conffile = `dirname $(strongswan_conf)`/strongswan.d/swanctl.conf
-
 swanctl_SOURCES = \
 	command.c command.h \
 	commands/initiate.c \
@@ -11,7 +9,7 @@ swanctl_SOURCES = \
 	commands/list_sas.c \
 	commands/list_pols.c \
 	commands/load_conns.c \
-	swanctl.c
+	swanctl.c swanctl.h
 
 swanctl_LDADD = \
 	$(top_builddir)/src/libcharon/plugins/vici/libvici.la \
@@ -22,5 +20,5 @@ swanctl.o :		$(top_builddir)/config.status
 AM_CPPFLAGS = \
 	-I$(top_srcdir)/src/libstrongswan \
 	-I$(top_srcdir)/src/libcharon/plugins/vici \
-	-DCONF_FILE=\""${conffile}\"" \
+	-DSWANCTLDIR=\""${swanctldir}\"" \
 	-DPLUGINS=\""${s_plugins}\""

src/swanctl/commands/load_conns.c

@@ -18,6 +18,7 @@
 #include <errno.h>
 
 #include "command.h"
+#include "swanctl.h"
 
 /**
  * Check if we should handle a key as a list of comma separated values
@@ -262,10 +263,10 @@ static int load_conns(vici_conn_t *conn)
 		break;
 	}
 
-	cfg = settings_create(CONF_FILE);
+	cfg = settings_create(SWANCTL_CONF);
 	if (!cfg)
 	{
-		fprintf(stderr, "parsing '%s' failed\n", CONF_FILE);
+		fprintf(stderr, "parsing '%s' failed\n", SWANCTL_CONF);
 		return EINVAL;
 	}
 

src/swanctl/swanctl.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2014 Martin Willi
+ * Copyright (C) 2014 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+/**
+ * @defgroup swanctl swanctl
+ * @{ @ingroup swanctl
+ */
+
+#ifndef SWANCTL_H_
+#define SWANCTL_H_
+
+/**
+ * Configuration file for connections, etc.
+ */
+#define SWANCTL_CONF SWANCTLDIR "/swanctl.conf"
+
+#endif /** SWANCTL_H_ @}*/