From: Daniel Wagner <daniel.wag...@bmw-carit.de>
---
include/dbus.h | 8 +++++
src/dbus.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 101 insertions(+)
diff --git a/include/dbus.h b/include/dbus.h
index c00488e..85e8ede 100644
--- a/include/dbus.h
+++ b/include/dbus.h
@@ -171,6 +171,14 @@ static inline void
connman_dbus_dict_append_fixed_array(DBusMessageIter *dict,
dbus_bool_t connman_dbus_validate_ident(const char *ident);
char *connman_dbus_encode_string(const char *value);
+typedef void (* connman_dbus_get_connection_unix_user_cb_t) (unsigned int uid,
+ void *user_data, int err);
+
+int connman_dbus_get_connection_unix_user(DBusConnection *connection,
+ const char *bus_name,
+ connman_dbus_get_connection_unix_user_cb_t func,
+ void *user_data);
+
typedef void (* connman_dbus_get_context_cb_t) (const unsigned char *context,
void *user_data, int err);
diff --git a/src/dbus.c b/src/dbus.c
index 590bafa..5cc6106 100644
--- a/src/dbus.c
+++ b/src/dbus.c
@@ -411,6 +411,99 @@ struct callback_data {
void *user_data;
};
+static void get_connection_unix_user_reply(DBusPendingCall *call,
+ void *user_data)
+{
+ struct callback_data *data = user_data;
+ connman_dbus_get_connection_unix_user_cb_t cb = data->cb;
+ DBusMessageIter iter;
+ DBusMessage *reply;
+ int err = 0;
+ unsigned int uid;
+
+ reply = dbus_pending_call_steal_reply(call);
+
+ if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
+ DBG("Failed to retrieve UID");
+ err = -EIO;
+ goto done;
+ }
+
+ if (dbus_message_has_signature(reply, "u") == FALSE) {
+ DBG("Message signature is wrong");
+ err = -EINVAL;
+ goto done;
+ }
+
+ dbus_message_iter_init(reply, &iter);
+ dbus_message_iter_get_basic(&iter, &uid);
+
+done:
+ (*cb)(uid, data->user_data, err);
+
+ dbus_message_unref(reply);
+
+ dbus_pending_call_unref(call);
+}
+
+int connman_dbus_get_connection_unix_user(DBusConnection *connection,
+ const char *bus_name,
+ connman_dbus_get_connection_unix_user_cb_t func,
+ void *user_data)
+{
+ struct callback_data *data;
+ DBusPendingCall *call;
+ DBusMessage *msg = NULL;
+ int err;
+
+ data = g_try_new0(struct callback_data, 1);
+ if (data == NULL) {
+ DBG("Can't allocate data structure");
+ return -ENOMEM;
+ }
+
+ msg = dbus_message_new_method_call(DBUS_SERVICE_DBUS, DBUS_PATH_DBUS,
+ DBUS_INTERFACE_DBUS,
+ "GetConnectionUnixUser");
+ if (msg == NULL) {
+ DBG("Can't allocate new message");
+ err = -ENOMEM;
+ goto err;
+ }
+
+ dbus_message_append_args(msg, DBUS_TYPE_STRING, &bus_name,
+ DBUS_TYPE_INVALID);
+
+ if (dbus_connection_send_with_reply(connection, msg,
+ &call, -1) == FALSE) {
+ DBG("Failed to execute method call");
+ err = -EINVAL;
+ goto err;
+ }
+
+ if (call == NULL) {
+ DBG("D-Bus connection not available");
+ err = -EINVAL;
+ goto err;
+ }
+
+ data->cb = func;
+ data->user_data = user_data;
+
+ dbus_pending_call_set_notify(call, get_connection_unix_user_reply,
+ data, g_free);
+
+ dbus_message_unref(msg);
+
+ return 0;
+
+err:
+ dbus_message_unref(msg);
+ g_free(data);
+
+ return err;
+}
+
static unsigned char *parse_context(DBusMessage *msg)
{
DBusMessageIter iter, array;
--
1.8.2.rc3.16.gce432ca
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