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/*
* oFono - Open Source Telephony
*
* Copyright (C) 2013 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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 <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <stdint.h>
#include <sys/socket.h>
#include <glib.h>
#include <ofono.h>
#define OFONO_API_SUBJECT_TO_CHANGE
#include <ofono/plugin.h>
#include <ofono/log.h>
#include <ofono/modem.h>
#include <gdbus.h>
#include "bluez5.h"
#ifndef DBUS_TYPE_UNIX_FD
#define DBUS_TYPE_UNIX_FD -1
#endif
#define DUN_GW_VERSION_1_0 0x0100
#define DUN_GW_CHANNEL 1
#define DUN_GW_EXT_PROFILE_PATH "/bluetooth/profile/dun_gw"
static guint modemwatch_id;
static GList *modems;
static DBusMessage *profile_new_connection(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessageIter entry;
const char *device;
int fd;
struct ofono_emulator *em;
struct ofono_modem *modem;
DBG("Profile handler NewConnection");
if (dbus_message_iter_init(msg, &entry) == FALSE)
goto invalid;
if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_OBJECT_PATH)
goto invalid;
dbus_message_iter_get_basic(&entry, &device);
dbus_message_iter_next(&entry);
if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_UNIX_FD)
goto invalid;
dbus_message_iter_get_basic(&entry, &fd);
dbus_message_iter_next(&entry);
if (fd < 0)
goto invalid;
DBG("%s", device);
/* Pick the first powered modem */
if (modems == NULL) {
close(fd);
return g_dbus_create_error(msg, BLUEZ_ERROR_INTERFACE
".Rejected",
"No GPRS capable modem");
}
modem = modems->data;
DBG("Picked modem %p for emulator", modem);
em = ofono_emulator_create(modem, OFONO_EMULATOR_TYPE_DUN);
if (em == NULL) {
close(fd);
return g_dbus_create_error(msg, BLUEZ_ERROR_INTERFACE
".Rejected",
"Not enough resources");
}
ofono_emulator_register(em, fd);
return dbus_message_new_method_return(msg);
invalid:
return g_dbus_create_error(msg, BLUEZ_ERROR_INTERFACE ".Rejected",
"Invalid arguments in method call");
}
static DBusMessage *profile_release(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
DBG("Profile handler Release");
return g_dbus_create_error(msg, BLUEZ_ERROR_INTERFACE
".NotImplemented",
"Implementation not provided");
}
static DBusMessage *profile_cancel(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
DBG("Profile handler Cancel");
return g_dbus_create_error(msg, BLUEZ_ERROR_INTERFACE
".NotImplemented",
"Implementation not provided");
}
static DBusMessage *profile_disconnection(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
DBG("Profile handler RequestDisconnection");
return g_dbus_create_error(msg, BLUEZ_ERROR_INTERFACE
".NotImplemented",
"Implementation not provided");
}
static const GDBusMethodTable profile_methods[] = {
{ GDBUS_ASYNC_METHOD("NewConnection",
GDBUS_ARGS({ "device", "o"}, { "fd", "h"},
{ "fd_properties", "a{sv}" }),
NULL, profile_new_connection) },
{ GDBUS_METHOD("Release", NULL, NULL, profile_release) },
{ GDBUS_METHOD("Cancel", NULL, NULL, profile_cancel) },
{ GDBUS_METHOD("RequestDisconnection",
GDBUS_ARGS({"device", "o"}), NULL,
profile_disconnection) },
{ }
};
static void gprs_watch(struct ofono_atom *atom,
enum ofono_atom_watch_condition cond,
void *data)
{
struct ofono_modem *modem = data;
DBusConnection *conn = ofono_dbus_get_connection();
if (cond != OFONO_ATOM_WATCH_CONDITION_REGISTERED) {
modems = g_list_remove(modems, modem);
if (modems != NULL)
return;
bt_unregister_profile(conn, DUN_GW_EXT_PROFILE_PATH);
return;
}
modems = g_list_append(modems, modem);
if (modems->next == NULL)
bt_register_profile(conn, DUN_GW_UUID, DUN_GW_VERSION_1_0,
"dun_gw", DUN_GW_EXT_PROFILE_PATH, NULL, 0);
}
static void modem_watch(struct ofono_modem *modem, gboolean added, void *user)
{
DBG("modem: %p, added: %d", modem, added);
if (added == FALSE)
return;
__ofono_modem_add_atom_watch(modem, OFONO_ATOM_TYPE_GPRS,
gprs_watch, modem, NULL);
}
static void call_modemwatch(struct ofono_modem *modem, void *user)
{
modem_watch(modem, TRUE, user);
}
static int dun_gw_init(void)
{
DBusConnection *conn = ofono_dbus_get_connection();
DBG("");
if (DBUS_TYPE_UNIX_FD < 0)
return -EBADF;
/* Registers External Profile handler */
if (!g_dbus_register_interface(conn, DUN_GW_EXT_PROFILE_PATH,
BLUEZ_PROFILE_INTERFACE,
profile_methods, NULL,
NULL, NULL, NULL)) {
ofono_error("Register Profile interface failed: %s",
DUN_GW_EXT_PROFILE_PATH);
return -EIO;
}
modemwatch_id = __ofono_modemwatch_add(modem_watch, NULL, NULL);
__ofono_modem_foreach(call_modemwatch, NULL);
return 0;
}
static void dun_gw_exit(void)
{
DBusConnection *conn = ofono_dbus_get_connection();
__ofono_modemwatch_remove(modemwatch_id);
g_list_free(modems);
bt_unregister_profile(conn, DUN_GW_EXT_PROFILE_PATH);
g_dbus_unregister_interface(conn, DUN_GW_EXT_PROFILE_PATH,
BLUEZ_PROFILE_INTERFACE);
}
OFONO_PLUGIN_DEFINE(dun_gw_bluez5, "Dial-up Networking Profile Plugins",
VERSION, OFONO_PLUGIN_PRIORITY_DEFAULT,
dun_gw_init, dun_gw_exit)
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