mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
synced 2024-11-25 13:14:14 +08:00
701 lines
16 KiB
C
701 lines
16 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <getopt.h>
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#include <string.h>
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#include <dbus/dbus.h>
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static char *passkey_value = NULL;
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static int passkey_delay = 0;
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static int do_reject = 0;
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static volatile sig_atomic_t __io_canceled = 0;
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static volatile sig_atomic_t __io_terminated = 0;
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static void sig_term(int sig)
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{
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__io_canceled = 1;
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}
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static DBusHandlerResult agent_filter(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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const char *name, *old, *new;
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if (!dbus_message_is_signal(msg, DBUS_INTERFACE_DBUS,
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"NameOwnerChanged"))
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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if (!dbus_message_get_args(msg, NULL,
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DBUS_TYPE_STRING, &name,
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DBUS_TYPE_STRING, &old,
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DBUS_TYPE_STRING, &new,
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DBUS_TYPE_INVALID)) {
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fprintf(stderr, "Invalid arguments for NameOwnerChanged signal");
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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if (!strcmp(name, "org.bluez") && *new == '\0') {
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fprintf(stderr, "Agent has been terminated\n");
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__io_terminated = 1;
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}
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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static DBusHandlerResult request_pincode_message(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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DBusMessage *reply;
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const char *path;
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if (!passkey_value)
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
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DBUS_TYPE_INVALID)) {
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fprintf(stderr, "Invalid arguments for RequestPinCode method");
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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if (do_reject) {
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reply = dbus_message_new_error(msg, "org.bluez.Error.Rejected", "");
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goto send;
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}
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reply = dbus_message_new_method_return(msg);
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if (!reply) {
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fprintf(stderr, "Can't create reply message\n");
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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}
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printf("Pincode request for device %s\n", path);
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if (passkey_delay) {
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printf("Waiting for %d seconds\n", passkey_delay);
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sleep(passkey_delay);
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}
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dbus_message_append_args(reply, DBUS_TYPE_STRING, &passkey_value,
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DBUS_TYPE_INVALID);
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send:
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dbus_connection_send(conn, reply, NULL);
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dbus_connection_flush(conn);
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dbus_message_unref(reply);
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return DBUS_HANDLER_RESULT_HANDLED;
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}
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static DBusHandlerResult request_passkey_message(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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DBusMessage *reply;
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const char *path;
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unsigned int passkey;
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if (!passkey_value)
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
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DBUS_TYPE_INVALID)) {
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fprintf(stderr, "Invalid arguments for RequestPasskey method");
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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if (do_reject) {
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reply = dbus_message_new_error(msg, "org.bluez.Error.Rejected", "");
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goto send;
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}
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reply = dbus_message_new_method_return(msg);
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if (!reply) {
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fprintf(stderr, "Can't create reply message\n");
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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}
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printf("Passkey request for device %s\n", path);
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if (passkey_delay) {
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printf("Waiting for %d seconds\n", passkey_delay);
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sleep(passkey_delay);
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}
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passkey = strtoul(passkey_value, NULL, 10);
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dbus_message_append_args(reply, DBUS_TYPE_UINT32, &passkey,
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DBUS_TYPE_INVALID);
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send:
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dbus_connection_send(conn, reply, NULL);
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dbus_connection_flush(conn);
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dbus_message_unref(reply);
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return DBUS_HANDLER_RESULT_HANDLED;
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}
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static DBusHandlerResult request_confirmation_message(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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DBusMessage *reply;
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const char *path;
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unsigned int passkey;
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if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
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DBUS_TYPE_UINT32, &passkey,
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DBUS_TYPE_INVALID)) {
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fprintf(stderr, "Invalid arguments for RequestPasskey method");
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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if (do_reject) {
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reply = dbus_message_new_error(msg, "org.bluez.Error.Rejected", "");
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goto send;
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}
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reply = dbus_message_new_method_return(msg);
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if (!reply) {
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fprintf(stderr, "Can't create reply message\n");
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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}
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printf("Confirmation request of %u for device %s\n", passkey, path);
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if (passkey_delay) {
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printf("Waiting for %d seconds\n", passkey_delay);
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sleep(passkey_delay);
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}
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send:
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dbus_connection_send(conn, reply, NULL);
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dbus_connection_flush(conn);
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dbus_message_unref(reply);
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return DBUS_HANDLER_RESULT_HANDLED;
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}
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static DBusHandlerResult authorize_message(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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DBusMessage *reply;
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const char *path, *uuid;
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if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
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DBUS_TYPE_STRING, &uuid,
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DBUS_TYPE_INVALID)) {
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fprintf(stderr, "Invalid arguments for Authorize method");
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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if (do_reject) {
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reply = dbus_message_new_error(msg, "org.bluez.Error.Rejected", "");
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goto send;
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}
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reply = dbus_message_new_method_return(msg);
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if (!reply) {
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fprintf(stderr, "Can't create reply message\n");
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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}
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printf("Authorizing request for %s\n", path);
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send:
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dbus_connection_send(conn, reply, NULL);
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dbus_connection_flush(conn);
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dbus_message_unref(reply);
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return DBUS_HANDLER_RESULT_HANDLED;
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}
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static DBusHandlerResult cancel_message(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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DBusMessage *reply;
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if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_INVALID)) {
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fprintf(stderr, "Invalid arguments for passkey Confirm method");
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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printf("Request canceled\n");
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reply = dbus_message_new_method_return(msg);
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if (!reply) {
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fprintf(stderr, "Can't create reply message\n");
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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}
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dbus_connection_send(conn, reply, NULL);
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dbus_connection_flush(conn);
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dbus_message_unref(reply);
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return DBUS_HANDLER_RESULT_HANDLED;
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}
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static DBusHandlerResult release_message(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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DBusMessage *reply;
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if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_INVALID)) {
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fprintf(stderr, "Invalid arguments for Release method");
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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if (!__io_canceled)
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fprintf(stderr, "Agent has been released\n");
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__io_terminated = 1;
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reply = dbus_message_new_method_return(msg);
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if (!reply) {
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fprintf(stderr, "Can't create reply message\n");
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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}
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dbus_connection_send(conn, reply, NULL);
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dbus_connection_flush(conn);
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dbus_message_unref(reply);
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return DBUS_HANDLER_RESULT_HANDLED;
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}
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static DBusHandlerResult agent_message(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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if (dbus_message_is_method_call(msg, "org.bluez.Agent",
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"RequestPinCode"))
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return request_pincode_message(conn, msg, data);
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if (dbus_message_is_method_call(msg, "org.bluez.Agent",
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"RequestPasskey"))
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return request_passkey_message(conn, msg, data);
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if (dbus_message_is_method_call(msg, "org.bluez.Agent",
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"RequestConfirmation"))
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return request_confirmation_message(conn, msg, data);
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if (dbus_message_is_method_call(msg, "org.bluez.Agent", "Authorize"))
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return authorize_message(conn, msg, data);
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if (dbus_message_is_method_call(msg, "org.bluez.Agent", "Cancel"))
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return cancel_message(conn, msg, data);
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if (dbus_message_is_method_call(msg, "org.bluez.Agent", "Release"))
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return release_message(conn, msg, data);
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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static const DBusObjectPathVTable agent_table = {
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.message_function = agent_message,
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};
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static int register_agent(DBusConnection *conn, const char *adapter_path,
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const char *agent_path,
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const char *capabilities)
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{
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DBusMessage *msg, *reply;
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DBusError err;
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msg = dbus_message_new_method_call("org.bluez", adapter_path,
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"org.bluez.Adapter", "RegisterAgent");
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if (!msg) {
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fprintf(stderr, "Can't allocate new method call\n");
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return -1;
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}
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dbus_message_append_args(msg, DBUS_TYPE_OBJECT_PATH, &agent_path,
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DBUS_TYPE_STRING, &capabilities,
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DBUS_TYPE_INVALID);
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dbus_error_init(&err);
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reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
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dbus_message_unref(msg);
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if (!reply) {
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fprintf(stderr, "Can't register agent\n");
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if (dbus_error_is_set(&err)) {
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fprintf(stderr, "%s\n", err.message);
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dbus_error_free(&err);
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}
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return -1;
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}
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dbus_message_unref(reply);
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dbus_connection_flush(conn);
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return 0;
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}
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static int unregister_agent(DBusConnection *conn, const char *adapter_path,
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const char *agent_path)
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{
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DBusMessage *msg, *reply;
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DBusError err;
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msg = dbus_message_new_method_call("org.bluez", adapter_path,
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"org.bluez.Adapter", "UnregisterAgent");
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if (!msg) {
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fprintf(stderr, "Can't allocate new method call\n");
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return -1;
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}
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dbus_message_append_args(msg, DBUS_TYPE_OBJECT_PATH, &agent_path,
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DBUS_TYPE_INVALID);
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dbus_error_init(&err);
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reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
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dbus_message_unref(msg);
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if (!reply) {
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fprintf(stderr, "Can't unregister agent\n");
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if (dbus_error_is_set(&err)) {
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fprintf(stderr, "%s\n", err.message);
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dbus_error_free(&err);
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}
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return -1;
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}
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dbus_message_unref(reply);
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dbus_connection_flush(conn);
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dbus_connection_unregister_object_path(conn, agent_path);
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return 0;
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}
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static int create_paired_device(DBusConnection *conn, const char *adapter_path,
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const char *agent_path,
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const char *capabilities,
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const char *device)
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{
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dbus_bool_t success;
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DBusMessage *msg;
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msg = dbus_message_new_method_call("org.bluez", adapter_path,
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"org.bluez.Adapter",
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"CreatePairedDevice");
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if (!msg) {
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fprintf(stderr, "Can't allocate new method call\n");
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return -1;
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}
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dbus_message_append_args(msg, DBUS_TYPE_STRING, &device,
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DBUS_TYPE_OBJECT_PATH, &agent_path,
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DBUS_TYPE_STRING, &capabilities,
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DBUS_TYPE_INVALID);
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success = dbus_connection_send(conn, msg, NULL);
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dbus_message_unref(msg);
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if (!success) {
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fprintf(stderr, "Not enough memory for message send\n");
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return -1;
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}
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dbus_connection_flush(conn);
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return 0;
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}
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static char *get_default_adapter_path(DBusConnection *conn)
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{
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DBusMessage *msg, *reply;
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DBusError err;
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const char *reply_path;
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char *path;
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msg = dbus_message_new_method_call("org.bluez", "/",
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"org.bluez.Manager", "DefaultAdapter");
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if (!msg) {
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fprintf(stderr, "Can't allocate new method call\n");
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return NULL;
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}
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dbus_error_init(&err);
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reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
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dbus_message_unref(msg);
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if (!reply) {
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fprintf(stderr,
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"Can't get default adapter\n");
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if (dbus_error_is_set(&err)) {
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fprintf(stderr, "%s\n", err.message);
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dbus_error_free(&err);
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}
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return NULL;
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}
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if (!dbus_message_get_args(reply, &err,
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DBUS_TYPE_OBJECT_PATH, &reply_path,
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DBUS_TYPE_INVALID)) {
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fprintf(stderr,
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"Can't get reply arguments\n");
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if (dbus_error_is_set(&err)) {
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fprintf(stderr, "%s\n", err.message);
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dbus_error_free(&err);
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}
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return NULL;
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}
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path = strdup(reply_path);
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dbus_message_unref(reply);
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dbus_connection_flush(conn);
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return path;
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}
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static char *get_adapter_path(DBusConnection *conn, const char *adapter)
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{
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DBusMessage *msg, *reply;
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DBusError err;
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const char *reply_path;
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char *path;
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if (!adapter)
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return get_default_adapter_path(conn);
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msg = dbus_message_new_method_call("org.bluez", "/",
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"org.bluez.Manager", "FindAdapter");
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if (!msg) {
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fprintf(stderr, "Can't allocate new method call\n");
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return NULL;
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}
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dbus_message_append_args(msg, DBUS_TYPE_STRING, &adapter,
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DBUS_TYPE_INVALID);
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dbus_error_init(&err);
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reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
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dbus_message_unref(msg);
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if (!reply) {
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fprintf(stderr,
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"Can't find adapter %s\n", adapter);
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if (dbus_error_is_set(&err)) {
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fprintf(stderr, "%s\n", err.message);
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dbus_error_free(&err);
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}
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return NULL;
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}
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if (!dbus_message_get_args(reply, &err,
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DBUS_TYPE_OBJECT_PATH, &reply_path,
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DBUS_TYPE_INVALID)) {
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fprintf(stderr,
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"Can't get reply arguments\n");
|
|
if (dbus_error_is_set(&err)) {
|
|
fprintf(stderr, "%s\n", err.message);
|
|
dbus_error_free(&err);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
path = strdup(reply_path);
|
|
|
|
dbus_message_unref(reply);
|
|
|
|
dbus_connection_flush(conn);
|
|
|
|
return path;
|
|
}
|
|
|
|
static void usage(void)
|
|
{
|
|
printf("Bluetooth agent ver %s\n\n", VERSION);
|
|
|
|
printf("Usage:\n"
|
|
"\tagent [--adapter adapter-path] [--path agent-path] <passkey> [<device>]\n"
|
|
"\n");
|
|
}
|
|
|
|
static struct option main_options[] = {
|
|
{ "adapter", 1, 0, 'a' },
|
|
{ "path", 1, 0, 'p' },
|
|
{ "capabilites",1, 0, 'c' },
|
|
{ "delay", 1, 0, 'd' },
|
|
{ "reject", 0, 0, 'r' },
|
|
{ "help", 0, 0, 'h' },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
const char *capabilities = "DisplayYesNo";
|
|
struct sigaction sa;
|
|
DBusConnection *conn;
|
|
char match_string[128], default_path[128], *adapter_id = NULL;
|
|
char *adapter_path = NULL, *agent_path = NULL, *device = NULL;
|
|
int opt;
|
|
|
|
snprintf(default_path, sizeof(default_path),
|
|
"/org/bluez/agent_%d", getpid());
|
|
|
|
while ((opt = getopt_long(argc, argv, "+a:p:c:d:rh", main_options, NULL)) != EOF) {
|
|
switch(opt) {
|
|
case 'a':
|
|
adapter_id = optarg;
|
|
break;
|
|
case 'p':
|
|
if (optarg[0] != '/') {
|
|
fprintf(stderr, "Invalid path\n");
|
|
exit(1);
|
|
}
|
|
agent_path = strdup(optarg);
|
|
break;
|
|
case 'c':
|
|
capabilities = optarg;
|
|
break;
|
|
case 'd':
|
|
passkey_delay = atoi(optarg);
|
|
break;
|
|
case 'r':
|
|
do_reject = 1;
|
|
break;
|
|
case 'h':
|
|
usage();
|
|
exit(0);
|
|
default:
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
optind = 0;
|
|
|
|
if (argc < 1) {
|
|
usage();
|
|
exit(1);
|
|
}
|
|
|
|
passkey_value = strdup(argv[0]);
|
|
|
|
if (argc > 1)
|
|
device = strdup(argv[1]);
|
|
|
|
if (!agent_path)
|
|
agent_path = strdup(default_path);
|
|
|
|
conn = dbus_bus_get(DBUS_BUS_SYSTEM, NULL);
|
|
if (!conn) {
|
|
fprintf(stderr, "Can't get on system bus");
|
|
exit(1);
|
|
}
|
|
|
|
adapter_path = get_adapter_path(conn, adapter_id);
|
|
if (!adapter_path)
|
|
exit(1);
|
|
|
|
if (!dbus_connection_register_object_path(conn, agent_path,
|
|
&agent_table, NULL)) {
|
|
fprintf(stderr, "Can't register object path for agent\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (device) {
|
|
if (create_paired_device(conn, adapter_path, agent_path,
|
|
capabilities, device) < 0) {
|
|
dbus_connection_unref(conn);
|
|
exit(1);
|
|
}
|
|
} else {
|
|
if (register_agent(conn, adapter_path, agent_path,
|
|
capabilities) < 0) {
|
|
dbus_connection_unref(conn);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (!dbus_connection_add_filter(conn, agent_filter, NULL, NULL))
|
|
fprintf(stderr, "Can't add signal filter");
|
|
|
|
snprintf(match_string, sizeof(match_string),
|
|
"interface=%s,member=NameOwnerChanged,arg0=%s",
|
|
DBUS_INTERFACE_DBUS, "org.bluez");
|
|
|
|
dbus_bus_add_match(conn, match_string, NULL);
|
|
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_flags = SA_NOCLDSTOP;
|
|
sa.sa_handler = sig_term;
|
|
sigaction(SIGTERM, &sa, NULL);
|
|
sigaction(SIGINT, &sa, NULL);
|
|
|
|
while (!__io_canceled && !__io_terminated) {
|
|
if (dbus_connection_read_write_dispatch(conn, 500) != TRUE)
|
|
break;
|
|
}
|
|
|
|
if (!__io_terminated && !device)
|
|
unregister_agent(conn, adapter_path, agent_path);
|
|
|
|
free(adapter_path);
|
|
free(agent_path);
|
|
|
|
free(passkey_value);
|
|
|
|
dbus_connection_unref(conn);
|
|
|
|
return 0;
|
|
}
|