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-rw-r--r--src/monitor/monitor_sbus.c195
1 files changed, 195 insertions, 0 deletions
diff --git a/src/monitor/monitor_sbus.c b/src/monitor/monitor_sbus.c
new file mode 100644
index 000000000..3f73e84f7
--- /dev/null
+++ b/src/monitor/monitor_sbus.c
@@ -0,0 +1,195 @@
+/*
+ SSSD
+
+ Data Provider Helpers
+
+ Copyright (C) Stephen Gallagher <sgallagh@redhat.com> 2009
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+/* Needed for res_init() */
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <resolv.h>
+
+#include "util/util.h"
+#include "confdb/confdb.h"
+#include "sbus/sssd_dbus.h"
+#include "monitor/monitor_interfaces.h"
+
+int monitor_get_sbus_address(TALLOC_CTX *mem_ctx, char **address)
+{
+ char *default_address;
+
+ *address = NULL;
+ default_address = talloc_asprintf(mem_ctx, "unix:path=%s/%s",
+ PIPE_PATH, SSSD_SERVICE_PIPE);
+ if (default_address == NULL) {
+ return ENOMEM;
+ }
+
+ *address = default_address;
+ return EOK;
+}
+
+static void id_callback(DBusPendingCall *pending, void *ptr)
+{
+ DBusMessage *reply;
+ DBusError dbus_error;
+ dbus_bool_t ret;
+ dbus_uint16_t mon_ver;
+ int type;
+
+ dbus_error_init(&dbus_error);
+
+ reply = dbus_pending_call_steal_reply(pending);
+ if (!reply) {
+ /* reply should never be null. This function shouldn't be called
+ * until reply is valid or timeout has occurred. If reply is NULL
+ * here, something is seriously wrong and we should bail out.
+ */
+ DEBUG(0, ("Severe error. A reply callback was called but no"
+ " reply was received and no timeout occurred\n"));
+
+ /* FIXME: Destroy this connection ? */
+ goto done;
+ }
+
+ type = dbus_message_get_type(reply);
+ switch (type) {
+ case DBUS_MESSAGE_TYPE_METHOD_RETURN:
+ ret = dbus_message_get_args(reply, &dbus_error,
+ DBUS_TYPE_UINT16, &mon_ver,
+ DBUS_TYPE_INVALID);
+ if (!ret) {
+ DEBUG(1, ("Failed to parse message\n"));
+ if (dbus_error_is_set(&dbus_error)) dbus_error_free(&dbus_error);
+ /* FIXME: Destroy this connection ? */
+ goto done;
+ }
+
+ DEBUG(4, ("Got id ack and version (%d) from Monitor\n", mon_ver));
+
+ break;
+
+ case DBUS_MESSAGE_TYPE_ERROR:
+ DEBUG(0,("The Monitor returned an error [%s]\n",
+ dbus_message_get_error_name(reply)));
+ /* Falling through to default intentionally*/
+ default:
+ /*
+ * Timeout or other error occurred or something
+ * unexpected happened.
+ * It doesn't matter which, because either way we
+ * know that this connection isn't trustworthy.
+ * We'll destroy it now.
+ */
+
+ /* FIXME: Destroy this connection ? */
+ break;
+ }
+
+done:
+ dbus_pending_call_unref(pending);
+ dbus_message_unref(reply);
+}
+
+int monitor_common_send_id(struct sbus_connection *conn,
+ const char *name, uint16_t version)
+{
+ DBusPendingCall *pending_reply;
+ DBusConnection *dbus_conn;
+ DBusMessage *msg;
+ dbus_bool_t ret;
+
+ dbus_conn = sbus_get_connection(conn);
+
+ /* create the message */
+ msg = dbus_message_new_method_call(NULL,
+ MON_SRV_PATH,
+ MON_SRV_INTERFACE,
+ MON_SRV_METHOD_REGISTER);
+ if (msg == NULL) {
+ DEBUG(0, ("Out of memory?!\n"));
+ return ENOMEM;
+ }
+
+ DEBUG(4, ("Sending ID: (%s,%d)\n", name, version));
+
+ ret = dbus_message_append_args(msg,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_UINT16, &version,
+ DBUS_TYPE_INVALID);
+ if (!ret) {
+ DEBUG(1, ("Failed to build message\n"));
+ return EIO;
+ }
+
+ ret = dbus_connection_send_with_reply(dbus_conn, msg, &pending_reply,
+ 30000 /* TODO: set timeout */);
+ if (!ret || !pending_reply) {
+ /*
+ * Critical Failure
+ * We can't communicate on this connection
+ * We'll drop it using the default destructor.
+ */
+ DEBUG(0, ("D-BUS send failed.\n"));
+ dbus_message_unref(msg);
+ return EIO;
+ }
+
+ /* Set up the reply handler */
+ dbus_pending_call_set_notify(pending_reply, id_callback, NULL, NULL);
+ dbus_message_unref(msg);
+
+ return EOK;
+}
+
+int monitor_common_pong(DBusMessage *message,
+ struct sbus_connection *conn)
+{
+ DBusMessage *reply;
+ dbus_bool_t ret;
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply) return ENOMEM;
+
+ ret = dbus_message_append_args(reply, DBUS_TYPE_INVALID);
+ if (!ret) {
+ dbus_message_unref(reply);
+ return EIO;
+ }
+
+ /* send reply back */
+ sbus_conn_send_reply(conn, reply);
+ dbus_message_unref(reply);
+
+ return EOK;
+}
+
+int monitor_common_res_init(DBusMessage *message,
+ struct sbus_connection *conn)
+{
+ int ret;
+
+ ret = res_init();
+ if(ret != 0) {
+ return EIO;
+ }
+
+ /* Send an empty reply to acknowledge receipt */
+ return monitor_common_pong(message, conn);
+}
+