diff options
Diffstat (limited to 'plugins/gadget.c')
-rw-r--r-- | plugins/gadget.c | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/plugins/gadget.c b/plugins/gadget.c new file mode 100644 index 00000000..94f66487 --- /dev/null +++ b/plugins/gadget.c @@ -0,0 +1,358 @@ +/* + * + * 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) +{ + 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) |