[network-manager-openvpn: 6/8] service: create runstate dir for management socket

[Thomas Haller <thaller src gnome org>]

commit 8e3be3a50154e98100ae0a4a5c7222ab947371ab
Author: Thomas Haller <thaller redhat com>
Date:   Tue Sep 20 22:30:03 2016 +0200

    service: create runstate dir for management socket
    
    Without this, the directory for the management socket
    must already exist. That is usually not the case
    when installing to a separate prefix.

 src/nm-openvpn-service.c |   29 ++++++++++++++++++++++++++---
 1 files changed, 26 insertions(+), 3 deletions(-)
---
diff --git a/src/nm-openvpn-service.c b/src/nm-openvpn-service.c
index 11fccd6..abf7d0c 100644
--- a/src/nm-openvpn-service.c
+++ b/src/nm-openvpn-service.c
@@ -54,6 +54,8 @@
 # define DIST_VERSION VERSION
 #endif
 
+#define RUNDIR  LOCALSTATEDIR"/run/NetworkManager"
+
 static struct {
        gboolean debug;
        int log_level;
@@ -1029,6 +1031,26 @@ update_io_data_from_vpn_setting (NMOpenvpnPluginIOData *io_data,
        io_data->proxy_password = tmp ? g_strdup (tmp) : NULL;
 }
 
+static char *
+mgt_path_create (NMConnection *connection, GError **error)
+{
+       int errsv;
+
+       /* Setup runtime directory */
+       if (g_mkdir_with_parents (RUNDIR, 0755) != 0) {
+               errsv = errno;
+               g_set_error (error,
+                            NM_VPN_PLUGIN_ERROR,
+                            NM_VPN_PLUGIN_ERROR_BAD_ARGUMENTS,
+                            "Cannot create run-dir %s (%s)",
+                            RUNDIR, g_strerror (errsv));
+               return NULL;
+       }
+
+       return g_strdup_printf (RUNDIR"/nm-openvpn-%s",
+                               nm_connection_get_uuid (connection));
+}
+
 #define MAX_GROUPS 128
 static gboolean
 is_dir_writable (const char *dir, const char *user)
@@ -1566,10 +1588,11 @@ nm_openvpn_start_openvpn_binary (NMOpenvpnPlugin *plugin,
        add_openvpn_arg (args, "--persist-tun");
 
        /* Management socket for localhost access to supply username and password */
+       g_clear_pointer (&priv->mgt_path, g_free);
+       priv->mgt_path = mgt_path_create (connection, error);
+       if (!priv->mgt_path)
+               return FALSE;
        add_openvpn_arg (args, "--management");
-       g_warn_if_fail (priv->mgt_path == NULL);
-       priv->mgt_path = g_strdup_printf (LOCALSTATEDIR "/run/NetworkManager/nm-openvpn-%s",
-                                         nm_connection_get_uuid (connection));
        add_openvpn_arg (args, priv->mgt_path);
        add_openvpn_arg (args, "unix");
        add_openvpn_arg (args, "--management-client-user");