diff options
Diffstat (limited to 'server/monitor/monitor_sbus.c')
| -rw-r--r-- | server/monitor/monitor_sbus.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/server/monitor/monitor_sbus.c b/server/monitor/monitor_sbus.c index 817b42ae..777a47fe 100644 --- a/server/monitor/monitor_sbus.c +++ b/server/monitor/monitor_sbus.c @@ -19,6 +19,11 @@ 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" @@ -54,3 +59,152 @@ done: return ret; } +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); +} + |