First attempts for session and process handling

1 files changed, 214 insertions, 0 deletions

diff --git a/transfer/session.c b/transfer/session.c
index 9a30e98f..e63fc3bc 100644
--- a/transfer/session.c
+++ b/transfer/session.c
@@ -25,4 +25,218 @@
 #include <config.h>
 #endif
 
+#include <errno.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/rfcomm.h>
+
+#include <glib.h>
+
+#include <dbus/dbus.h>
+
+#include "logging.h"
+
+#include "process.h"
 #include "session.h"
+
+static DBusHandlerResult cancel_message(DBusConnection *conn,
+						DBusMessage *msg, void *data)
+{
+	DBusMessage *reply;
+	struct session_data *session = data;
+
+	reply = dbus_message_new_method_return(msg);
+	if (!reply)
+		return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+	debug("Cancel of session at %s", session->identifier);
+
+	dbus_message_append_args(reply, DBUS_TYPE_INVALID);
+
+	dbus_connection_send(conn, reply, NULL);
+
+	dbus_message_unref(reply);
+
+	return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+static DBusHandlerResult session_handler(DBusConnection *conn,
+						DBusMessage *msg, void *data)
+{
+	if (dbus_message_is_method_call(msg, "org.bluez.transfer.Session", "Cancel"))
+		return cancel_message(conn, msg, data);
+
+	return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+static DBusObjectPathVTable session_table = {
+	.message_function = session_handler,
+};
+
+struct session_data *session_create(DBusConnection *conn, DBusMessage *msg)
+{
+	struct session_data *session;
+
+	session = malloc(sizeof(*session));
+	if (!session)
+		return NULL;
+
+	memset(session, 0, sizeof(*session));
+
+	session->conn = dbus_connection_ref(conn);
+
+	session->msg = dbus_message_ref(msg);
+
+	return session;
+}
+
+void session_destroy(struct session_data *session)
+{
+	if (!session)
+		return;
+
+	if (session->identifier) {
+		dbus_connection_unregister_object_path(session->conn,
+							session->identifier);
+		free(session->identifier);
+	}
+
+	dbus_message_unref(session->msg);
+
+	dbus_connection_unref(session->conn);
+
+	free(session);
+}
+
+static gboolean connect_callback(GIOChannel *chan,
+					GIOCondition cond, gpointer data)
+{
+	struct session_data *session = data;
+	int sk;
+
+	debug("Connection for session %s established", session->identifier);
+
+	sk = g_io_channel_unix_get_fd(session->rfcomm_io);
+
+	close(sk);
+
+	return FALSE;
+}
+
+static int rfcomm_connect(struct session_data *session)
+{
+	struct sockaddr_rc addr;
+	long arg;
+	int sk;
+
+	sk = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
+	if (sk < 0)
+		return -1;
+
+	arg = fcntl(sk, F_GETFL);
+	if (arg < 0) {
+		close(sk);
+		return -1;
+	}
+
+	arg |= O_NONBLOCK;
+
+	if (fcntl(sk, F_SETFL, arg) < 0) {
+		close(sk);
+		return -1;
+	}
+
+	session->rfcomm_io = g_io_channel_unix_new(sk);
+	if (!session->rfcomm_io) {
+		close(sk);
+		return -1;
+	}
+
+	g_io_channel_set_close_on_unref(session->rfcomm_io, TRUE);
+
+	memset(&addr, 0, sizeof(addr));
+	addr.rc_family = AF_BLUETOOTH;
+	bacpy(&addr.rc_bdaddr, &session->bdaddr);
+	addr.rc_channel = session->channel;
+
+	if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+		if (errno != EAGAIN && errno != EINPROGRESS) {
+			close(sk);
+			return -1;
+		}
+	}
+
+	g_io_add_watch(session->rfcomm_io, G_IO_OUT, connect_callback, session);
+
+	return 0;
+}
+
+static gboolean data_event(GIOChannel *chan, GIOCondition cond, gpointer data)
+{
+	unsigned char buf[64];
+	gsize len;
+	GIOError err;
+	int i;
+
+	debug("Data event");
+
+	if (cond & (G_IO_HUP | G_IO_ERR))
+		return FALSE;
+
+	memset(buf, 0, sizeof(buf));
+
+	err = g_io_channel_read(chan, (gchar *) buf, sizeof(buf) - 1, &len);
+	if (err == G_IO_ERROR_AGAIN)
+		return TRUE;
+
+	for (i = 0; i < len; i++)
+		if (!isprint(buf[i]))
+			buf[i] = '.';
+
+	debug("%s", buf);
+
+	return TRUE;
+}
+
+const char *session_connect(struct session_data *session,
+				const char *address, const char *pathname)
+{
+	const char *sender;
+	char path[128];
+
+	sender = dbus_message_get_sender(session->msg);
+
+	session->uid = dbus_bus_get_unix_user(session->conn, sender, NULL);
+
+	debug("Request by user %d", session->uid);
+
+	create_reader(session->uid, pathname, data_event, NULL);
+
+	str2ba(address, &session->bdaddr);
+
+	session->channel = 1;
+
+	snprintf(path, sizeof(path), "/org/bluez/transfer/%d%d",
+						session->uid, rand());
+
+	session->identifier = strdup(path);
+	if (!session->identifier)
+		return NULL;
+
+	if (dbus_connection_register_object_path(session->conn, path,
+					&session_table, session) == FALSE) {
+		free(session->identifier);
+		session->identifier = NULL;
+		return NULL;
+	}
+
+	if (rfcomm_connect(session) < 0)
+		return NULL;
+
+	return session->identifier;
+}