| /* |
| * |
| * BlueZ - Bluetooth protocol stack for Linux |
| * |
| * Copyright (C) 2006-2008 Marcel Holtmann <marcel@holtmann.org> |
| * |
| * |
| * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #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; |
| } |