2007-07-24 Richard Hughes <richard@hughsie.com>

* bus/activation-helper-bin.c: (convert_error_to_exit_code),
(main):
* bus/activation-helper.c: (desktop_file_for_name),
(clear_environment), (check_permissions), (check_service_name),
(get_parameters_for_service), (switch_user),
(exec_for_correct_user), (check_bus_name), (get_correct_parser),
(launch_bus_name), (check_dbus_user), (run_launch_helper):
* bus/activation-helper.h:
Add the initial launch-helper. This is split into a main section and a
binary loader that allows us to lauch the main section in another test
harness to do stuff like OOM testing. No build glue yet.

1 files changed, 92 insertions, 0 deletions

diff --git a/bus/activation-helper-bin.c b/bus/activation-helper-bin.c
new file mode 100644
index 00000000..6b9ec1f5
--- /dev/null
+++ b/bus/activation-helper-bin.c
@@ -0,0 +1,92 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/* activation-helper-bin.c  Setuid helper for launching programs as a custom
+ *                          user. This file is security sensitive.
+ *
+ * Copyright (C) 2007 Red Hat, Inc.
+ *
+ * Licensed under the Academic Free License version 2.1
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <config.h>
+
+#include "utils.h"
+#include "activation-helper.h"
+#include "activation-exit-codes.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static int
+convert_error_to_exit_code (DBusError *error)
+{
+  if (dbus_error_has_name (error, DBUS_ERROR_NO_MEMORY))
+    return BUS_SPAWN_EXIT_CODE_NO_MEMORY;
+
+  if (dbus_error_has_name (error, DBUS_ERROR_SPAWN_CONFIG_INVALID))
+    return BUS_SPAWN_EXIT_CODE_CONFIG_INVALID;
+
+  if (dbus_error_has_name (error, DBUS_ERROR_SPAWN_SETUP_FAILED))
+    return BUS_SPAWN_EXIT_CODE_SETUP_FAILED;
+
+  if (dbus_error_has_name (error, DBUS_ERROR_SPAWN_SERVICE_INVALID))
+    return BUS_SPAWN_EXIT_CODE_SERVICE_NOT_FOUND;
+
+  if (dbus_error_has_name (error, DBUS_ERROR_SPAWN_PERMISSIONS_INVALID))
+    return BUS_SPAWN_EXIT_CODE_PERMISSIONS_INVALID;
+
+  if (dbus_error_has_name (error, DBUS_ERROR_SPAWN_FILE_INVALID))
+    return BUS_SPAWN_EXIT_CODE_FILE_INVALID;
+
+  if (dbus_error_has_name (error, DBUS_ERROR_SPAWN_EXEC_FAILED))
+    return BUS_SPAWN_EXIT_CODE_EXEC_FAILED;
+
+  /* should we assert? */
+  return BUS_SPAWN_EXIT_CODE_SETUP_FAILED;
+}
+
+int
+main (int argc, char **argv)
+{
+  DBusError error;
+  int retval;
+
+  /* default is all okay */
+  retval = 0;
+
+  /* have we used a help option or not specified the correct arguments? */
+  if (argc != 2 ||
+      strcmp (argv[1], "--help") == 0 ||
+      strcmp (argv[1], "-h") == 0 ||
+      strcmp (argv[1], "-?") == 0)
+    {
+        fprintf (stderr, "dbus-daemon-activation-helper service.to.activate\n");
+        exit (0);
+    }
+
+  dbus_error_init (&error);
+  if (!run_launch_helper (argv[1], &error))
+    {
+      /* convert error to an exit code */
+      retval = convert_error_to_exit_code (&error);
+      dbus_error_free (&error);
+    }
+
+  return retval;
+}
+