| /* |
| * |
| * Connection Manager |
| * |
| * Copyright (C) 2007-2012 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 <errno.h> |
| #include <net/if.h> |
| |
| #ifndef IFF_LOWER_UP |
| #define IFF_LOWER_UP 0x10000 |
| #endif |
| |
| #include <glib.h> |
| |
| #define CONNMAN_API_SUBJECT_TO_CHANGE |
| #include <connman/technology.h> |
| #include <connman/plugin.h> |
| #include <connman/device.h> |
| #include <connman/rtnl.h> |
| #include <connman/inet.h> |
| #include <connman/log.h> |
| |
| static bool gadget_tethering = false; |
| |
| struct gadget_data { |
| int index; |
| unsigned flags; |
| unsigned int watch; |
| struct connman_network *network; |
| }; |
| |
| static int gadget_network_probe(struct connman_network *network) |
| { |
| DBG("network %p", network); |
| |
| return 0; |
| } |
| |
| static void gadget_network_remove(struct connman_network *network) |
| { |
| DBG("network %p", network); |
| } |
| |
| static int gadget_network_connect(struct connman_network *network) |
| { |
| DBG("network %p", network); |
| |
| connman_network_set_connected(network, true); |
| |
| return 0; |
| } |
| |
| static int gadget_network_disconnect(struct connman_network *network, bool user_initiated) |
| { |
| DBG("network %p", network); |
| |
| connman_network_set_connected(network, false); |
| |
| return 0; |
| } |
| |
| static struct connman_network_driver gadget_network_driver = { |
| .name = "usb", |
| .type = CONNMAN_NETWORK_TYPE_GADGET, |
| .probe = gadget_network_probe, |
| .remove = gadget_network_remove, |
| .connect = gadget_network_connect, |
| .disconnect = gadget_network_disconnect, |
| }; |
| |
| static void add_network(struct connman_device *device, |
| struct gadget_data *gadget) |
| { |
| struct connman_network *network; |
| int index; |
| |
| network = connman_network_create("gadget", |
| CONNMAN_NETWORK_TYPE_GADGET); |
| if (!network) |
| return; |
| |
| index = connman_device_get_index(device); |
| connman_network_set_index(network, index); |
| |
| connman_network_set_name(network, "Wired"); |
| |
| if (connman_device_add_network(device, network) < 0) { |
| connman_network_unref(network); |
| return; |
| } |
| |
| if (!gadget_tethering) |
| /* |
| * Prevent service from starting the reconnect |
| * procedure as we do not want the DHCP client |
| * to run when tethering. |
| */ |
| connman_network_set_group(network, "usb"); |
| |
| gadget->network = network; |
| } |
| |
| static void remove_network(struct connman_device *device, |
| struct gadget_data *gadget) |
| { |
| if (!gadget->network) |
| return; |
| |
| connman_device_remove_network(device, gadget->network); |
| connman_network_unref(gadget->network); |
| |
| gadget->network = NULL; |
| } |
| |
| static void gadget_newlink(unsigned flags, unsigned change, void *user_data) |
| { |
| struct connman_device *device = user_data; |
| struct gadget_data *gadget = connman_device_get_data(device); |
| |
| DBG("index %d flags %d change %d", gadget->index, flags, change); |
| |
| if ((gadget->flags & IFF_UP) != (flags & IFF_UP)) { |
| if (flags & IFF_UP) { |
| DBG("power on"); |
| connman_device_set_powered(device, true); |
| } else { |
| DBG("power off"); |
| connman_device_set_powered(device, false); |
| } |
| } |
| |
| if ((gadget->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) { |
| if (flags & IFF_LOWER_UP) { |
| DBG("carrier on"); |
| add_network(device, gadget); |
| } else { |
| DBG("carrier off"); |
| remove_network(device, gadget); |
| } |
| } |
| |
| gadget->flags = flags; |
| } |
| |
| static int gadget_dev_probe(struct connman_device *device) |
| { |
| struct gadget_data *gadget; |
| |
| DBG("device %p", device); |
| |
| gadget = g_try_new0(struct gadget_data, 1); |
| if (!gadget) |
| return -ENOMEM; |
| |
| connman_device_set_data(device, gadget); |
| |
| gadget->index = connman_device_get_index(device); |
| gadget->flags = 0; |
| |
| gadget->watch = connman_rtnl_add_newlink_watch(gadget->index, |
| gadget_newlink, device); |
| |
| return 0; |
| } |
| |
| static void gadget_dev_remove(struct connman_device *device) |
| { |
| struct gadget_data *gadget = connman_device_get_data(device); |
| |
| DBG("device %p", device); |
| |
| connman_device_set_data(device, NULL); |
| |
| connman_rtnl_remove_watch(gadget->watch); |
| |
| remove_network(device, gadget); |
| |
| g_free(gadget); |
| } |
| |
| static int gadget_dev_enable(struct connman_device *device) |
| { |
| struct gadget_data *gadget = connman_device_get_data(device); |
| |
| DBG("device %p", device); |
| |
| return connman_inet_ifup(gadget->index); |
| } |
| |
| static int gadget_dev_disable(struct connman_device *device) |
| { |
| struct gadget_data *gadget = connman_device_get_data(device); |
| |
| DBG("device %p", device); |
| |
| return connman_inet_ifdown(gadget->index); |
| } |
| |
| static struct connman_device_driver gadget_dev_driver = { |
| .name = "gadget", |
| .type = CONNMAN_DEVICE_TYPE_GADGET, |
| .probe = gadget_dev_probe, |
| .remove = gadget_dev_remove, |
| .enable = gadget_dev_enable, |
| .disable = gadget_dev_disable, |
| }; |
| |
| static GList *cdc_interface_list = NULL; |
| |
| static void gadget_tech_add_interface(struct connman_technology *technology, |
| int index, const char *name, const char *ident) |
| { |
| DBG("index %d name %s ident %s", index, name, ident); |
| |
| if (g_list_find(cdc_interface_list, GINT_TO_POINTER((int)index))) |
| return; |
| |
| cdc_interface_list = g_list_prepend(cdc_interface_list, |
| (GINT_TO_POINTER((int) index))); |
| } |
| |
| static void gadget_tech_remove_interface(struct connman_technology *technology, |
| int index) |
| { |
| DBG("index %d", index); |
| |
| cdc_interface_list = g_list_remove(cdc_interface_list, |
| GINT_TO_POINTER((int) index)); |
| } |
| |
| static void gadget_tech_enable_tethering(struct connman_technology *technology, |
| const char *bridge) |
| { |
| GList *list; |
| |
| for (list = cdc_interface_list; list; list = list->next) { |
| int index = GPOINTER_TO_INT(list->data); |
| struct connman_device *device = |
| connman_device_find_by_index(index); |
| struct gadget_data *gadget; |
| |
| if (device) { |
| gadget = connman_device_get_data(device); |
| if (gadget) |
| remove_network(device, gadget); |
| } |
| |
| connman_technology_tethering_notify(technology, true); |
| |
| connman_inet_ifup(index); |
| |
| connman_inet_add_to_bridge(index, bridge); |
| } |
| } |
| |
| static void gadget_tech_disable_tethering(struct connman_technology *technology, |
| const char *bridge) |
| { |
| GList *list; |
| |
| for (list = cdc_interface_list; list; list = list->next) { |
| int index = GPOINTER_TO_INT(list->data); |
| |
| connman_inet_remove_from_bridge(index, bridge); |
| |
| connman_inet_ifdown(index); |
| |
| connman_technology_tethering_notify(technology, false); |
| } |
| } |
| |
| static int gadget_tech_set_tethering(struct connman_technology *technology, |
| const char *identifier, const char *passphrase, |
| const char *bridge, bool enabled) |
| { |
| DBG("bridge %s enabled %d", bridge, enabled); |
| |
| if (enabled) |
| gadget_tech_enable_tethering(technology, bridge); |
| else |
| gadget_tech_disable_tethering(technology, bridge); |
| |
| return 0; |
| } |
| |
| static int gadget_tech_probe(struct connman_technology *technology) |
| { |
| return 0; |
| } |
| |
| static void gadget_tech_remove(struct connman_technology *technology) |
| { |
| g_list_free(cdc_interface_list); |
| |
| cdc_interface_list = NULL; |
| } |
| |
| static struct connman_technology_driver gadget_tech_driver = { |
| .name = "cdc_ethernet", |
| .type = CONNMAN_SERVICE_TYPE_GADGET, |
| .probe = gadget_tech_probe, |
| .remove = gadget_tech_remove, |
| .add_interface = gadget_tech_add_interface, |
| .remove_interface = gadget_tech_remove_interface, |
| .set_tethering = gadget_tech_set_tethering, |
| }; |
| |
| static int gadget_init(void) |
| { |
| int err; |
| |
| err = connman_technology_driver_register(&gadget_tech_driver); |
| if (err < 0) { |
| return err; |
| } |
| |
| err = connman_network_driver_register(&gadget_network_driver); |
| if (err < 0) |
| return err; |
| |
| err = connman_device_driver_register(&gadget_dev_driver); |
| if (err < 0) { |
| connman_technology_driver_unregister(&gadget_tech_driver); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static void gadget_exit(void) |
| { |
| connman_technology_driver_unregister(&gadget_tech_driver); |
| connman_network_driver_unregister(&gadget_network_driver); |
| connman_device_driver_unregister(&gadget_dev_driver); |
| } |
| |
| CONNMAN_PLUGIN_DEFINE(gadget, "Gadget interface plugin", VERSION, |
| CONNMAN_PLUGIN_PRIORITY_DEFAULT, gadget_init, gadget_exit) |