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