Merge "Fix derefrencing of NULL pointer" into tizen
[platform/upstream/connman.git] / plugins / ethernet.c
index 3013271..b0031cb 100644 (file)
@@ -2,7 +2,7 @@
  *
  *  Connection Manager
  *
- *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
+ *  Copyright (C) 2007-2013  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
 
 #include <errno.h>
 #include <net/if.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include <linux/if_vlan.h>
+#include <linux/sockios.h>
+#include <linux/ethtool.h>
 
 #ifndef IFF_LOWER_UP
 #define IFF_LOWER_UP   0x10000
 #include <glib.h>
 
 #define CONNMAN_API_SUBJECT_TO_CHANGE
+#include <connman/technology.h>
 #include <connman/plugin.h>
 #include <connman/device.h>
 #include <connman/inet.h>
 #include <connman/rtnl.h>
 #include <connman/log.h>
+#include <connman/setting.h>
+#if defined TIZEN_EXT_WIFI_MESH
+#include <connman/mesh.h>
+#endif
+
+#if defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET
+#include <connman/option.h>
+#include <gsupplicant/gsupplicant.h>
+#endif /* defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET */
+
+static bool eth_tethering = false;
 
 struct ethernet_data {
        int index;
        unsigned flags;
        unsigned int watch;
+       struct connman_network *network;
+#if defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET
+       GSupplicantInterface *interface;
+#endif /* defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET */
 };
 
+
+static int get_vlan_vid(const char *ifname)
+{
+       struct vlan_ioctl_args vifr;
+       int vid;
+       int sk;
+
+       memset(&vifr, 0, sizeof(vifr));
+
+       sk = socket(AF_INET, SOCK_STREAM, 0);
+       if (sk < 0)
+               return -errno;
+
+       vifr.cmd = GET_VLAN_VID_CMD;
+       strncpy(vifr.device1, ifname, sizeof(vifr.device1));
+
+       if(ioctl(sk, SIOCSIFVLAN, &vifr) >= 0)
+               vid = vifr.u.VID;
+       else
+               vid = -errno;
+
+       close(sk);
+
+       return vid;
+}
+
+static int get_dsa_port(const char *ifname)
+{
+       int sk;
+       int dsaport = -1;
+       struct ifreq ifr;
+       struct ethtool_cmd cmd;
+       struct ethtool_drvinfo drvinfocmd;
+       struct vlan_ioctl_args vifr;
+
+       sk = socket(AF_INET, SOCK_STREAM, 0);
+       if (sk < 0)
+               return -errno;
+
+       memset(&ifr, 0, sizeof(ifr));
+       strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+
+       /* check if it is a vlan and get physical interface name*/
+       vifr.cmd = GET_VLAN_REALDEV_NAME_CMD;
+       strncpy(vifr.device1, ifname, sizeof(vifr.device1));
+
+       if(ioctl(sk, SIOCSIFVLAN, &vifr) >= 0)
+               strncpy(ifr.ifr_name, vifr.u.device2, sizeof(ifr.ifr_name));
+
+       /* get driver info */
+       drvinfocmd.cmd =  ETHTOOL_GDRVINFO;
+       ifr.ifr_data = (caddr_t)&drvinfocmd;
+
+       if (!ioctl(sk, SIOCETHTOOL, &ifr)) {
+               if(!strcmp(drvinfocmd.driver, "dsa")) {
+                       /* get dsa port*/
+                       cmd.cmd =  ETHTOOL_GSET;
+                       ifr.ifr_data = (caddr_t)&cmd;
+
+                       if (!ioctl(sk, SIOCETHTOOL, &ifr))
+                               dsaport = cmd.phy_address;
+               }
+       }
+       close(sk);
+
+       return dsaport;
+}
+
+static int eth_network_probe(struct connman_network *network)
+{
+       DBG("network %p", network);
+
+       return 0;
+}
+
+static void eth_network_remove(struct connman_network *network)
+{
+       DBG("network %p", network);
+}
+
+#if defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET
+static struct connman_network *g_network = NULL;
+
+void handle_eap_signal(GSupplicantInterface *interface, bool status)
+{
+       DBG("captured EAP signal");
+
+       if (!g_network)
+               return;
+
+       if (g_strcmp0("wired", g_supplicant_interface_get_driver(interface)))
+               return;
+
+       if (!connman_network_check_validity(g_network))
+               return;
+
+       DBG("network is valid");
+
+       g_supplicant_unregister_eap_callback();
+
+       if (!status) {
+               // Should we mark service as non favorite or make autoconnect as false?
+
+               struct ethernet_data *ethernet = g_supplicant_interface_get_data(interface);
+               if (ethernet && ethernet->interface) {
+                       g_supplicant_interface_remove(ethernet->interface, NULL, NULL);
+                       ethernet->interface = NULL;
+               }
+
+               connman_network_set_error(g_network, CONNMAN_NETWORK_ERROR_ASSOCIATE_FAIL);
+               g_network = NULL;
+               return;
+       }
+
+       connman_network_set_connected(g_network, status);
+       g_network = NULL;
+}
+
+static void interface_create_callback(int result,
+               GSupplicantInterface *interface, void *user_data)
+{
+       struct ethernet_data *ethernet = user_data;
+
+       if (result < 0 || !interface || !ethernet)
+               return;
+
+       DBG("result %d ifname %s, ethernet %p", result,
+                       g_supplicant_interface_get_ifname(interface),
+                       ethernet);
+
+       ethernet->interface = interface;
+       g_supplicant_interface_set_data(interface, ethernet);
+}
+
+static int eth_network_connect(struct connman_network *network)
+{
+       DBG("network %p", network);
+
+       struct connman_service *service = connman_service_lookup_from_network(network);
+
+       if (service && __connman_service_get_use_eapol(service)) {
+               struct connman_device *device = connman_network_get_device(network);
+               struct ethernet_data *ethernet = connman_device_get_data(device);
+               const char *driver = "wired";
+               int index = connman_network_get_index(network);
+               char *ifname = connman_inet_ifname(index);;
+               char *config_file = NULL;
+
+               g_supplicant_register_eap_callback(handle_eap_signal);
+               g_network = network;
+
+               if (asprintf(&config_file, "/var/lib/connman/%s-eapol.conf", ifname) < 0) {
+                       g_free(ifname);
+                       return -ENOMEM;
+               }
+
+               DBG("config_file %s", config_file);
+
+               g_supplicant_replace_config_file(ifname, config_file);
+               free(config_file);
+
+               /*
+                *  TODO: RemoveInterface if already present because
+                *  already created interface will not start EAP handshake.
+                */
+               g_supplicant_interface_create(ifname, driver, NULL,
+                               interface_create_callback, ethernet);
+
+               g_free(ifname);
+
+               return 0;
+       }
+
+       connman_network_set_connected(network, true);
+
+       return 0;
+}
+
+static int eth_network_disconnect(struct connman_network *network)
+{
+       DBG("network %p", network);
+
+       struct connman_service *service = connman_service_lookup_from_network(network);
+
+       if (service && __connman_service_get_use_eapol(service)) {
+               struct connman_device *device = connman_network_get_device(network);
+               struct ethernet_data *ethernet = connman_device_get_data(device);
+
+               g_network = NULL;
+               g_supplicant_unregister_eap_callback();
+               if (ethernet && ethernet->interface) {
+                       g_supplicant_interface_remove(ethernet->interface, NULL, NULL);
+                       ethernet->interface = NULL;
+               }
+               connman_network_set_associating(network, false);
+               connman_network_set_connected(network, false);
+
+               return 0;
+       }
+
+       connman_network_set_connected(network, false);
+
+       return 0;
+}
+
+#else /* defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET */
+
+static int eth_network_connect(struct connman_network *network)
+{
+       DBG("network %p", network);
+
+       connman_network_set_connected(network, true);
+
+       return 0;
+}
+
+static int eth_network_disconnect(struct connman_network *network)
+{
+       DBG("network %p", network);
+
+       connman_network_set_connected(network, false);
+
+       return 0;
+}
+
+#endif /* defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET */
+
+static struct connman_network_driver eth_network_driver = {
+       .name           = "cable",
+       .type           = CONNMAN_NETWORK_TYPE_ETHERNET,
+       .probe          = eth_network_probe,
+       .remove         = eth_network_remove,
+       .connect        = eth_network_connect,
+       .disconnect     = eth_network_disconnect,
+};
+
+static void add_network(struct connman_device *device,
+                       struct ethernet_data *ethernet)
+{
+       struct connman_network *network;
+       int index;
+       char *ifname;
+
+       network = connman_network_create("carrier",
+                                       CONNMAN_NETWORK_TYPE_ETHERNET);
+       if (!network)
+               return;
+
+       index = connman_device_get_index(device);
+       connman_network_set_index(network, index);
+       ifname = connman_inet_ifname(index);
+       if (!ifname)
+               return;
+
+       connman_network_set_name(network, "Wired");
+
+       if (connman_device_add_network(device, network) < 0) {
+               connman_network_unref(network);
+               g_free(ifname);
+               return;
+       }
+
+       if (!eth_tethering) {
+               char group[25] = "cable";
+               int vid, dsaport;
+
+               vid = get_vlan_vid(ifname);
+               dsaport = get_dsa_port(ifname);
+
+               /*
+                * Prevent service from starting the reconnect
+                * procedure as we do not want the DHCP client
+                * to run when tethering.
+                */
+               if((vid >= 0) && (dsaport >= 0))
+                       snprintf(group, sizeof(group), "p%02x_%03x_cable", dsaport, vid);
+               else if (vid >= 0)
+                       snprintf(group, sizeof(group), "%03x_cable", vid);
+               else if (dsaport >= 0)
+                       snprintf(group, sizeof(group), "p%02x_cable", dsaport);
+
+               connman_network_set_group(network, group);
+       }
+
+       ethernet->network = network;
+       g_free(ifname);
+}
+
+static void remove_network(struct connman_device *device,
+                               struct ethernet_data *ethernet)
+{
+       if (!ethernet->network)
+               return;
+
+       connman_device_remove_network(device, ethernet->network);
+       connman_network_unref(ethernet->network);
+
+       ethernet->network = NULL;
+}
+
 static void ethernet_newlink(unsigned flags, unsigned change, void *user_data)
 {
        struct connman_device *device = user_data;
@@ -55,50 +380,55 @@ static void ethernet_newlink(unsigned flags, unsigned change, void *user_data)
        if ((ethernet->flags & IFF_UP) != (flags & IFF_UP)) {
                if (flags & IFF_UP) {
                        DBG("power on");
-                       connman_device_set_powered(device, TRUE);
+                       connman_device_set_powered(device, true);
                } else {
                        DBG("power off");
-                       connman_device_set_powered(device, FALSE);
+                       connman_device_set_powered(device, false);
                }
        }
 
        if ((ethernet->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
                if (flags & IFF_LOWER_UP) {
                        DBG("carrier on");
-                       connman_device_set_carrier(device, TRUE);
+                       add_network(device, ethernet);
                } else {
                        DBG("carrier off");
-                       connman_device_set_carrier(device, FALSE);
+                       remove_network(device, ethernet);
+#if defined TIZEN_EXT_WIFI_MESH
+                       /* Remove ethernet from mesh bridge */
+                       __connman_mesh_remove_ethernet_from_bridge();
+#endif
                }
        }
 
        ethernet->flags = flags;
 }
 
-static int ethernet_probe(struct connman_device *device)
+static int eth_dev_probe(struct connman_device *device)
 {
        struct ethernet_data *ethernet;
 
        DBG("device %p", device);
 
        ethernet = g_try_new0(struct ethernet_data, 1);
-       if (ethernet == NULL)
+       if (!ethernet)
                return -ENOMEM;
 
        connman_device_set_data(device, ethernet);
 
        ethernet->index = connman_device_get_index(device);
        ethernet->flags = 0;
+#if defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET
+       ethernet->interface = NULL;
+#endif /* defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET */
 
        ethernet->watch = connman_rtnl_add_newlink_watch(ethernet->index,
                                                ethernet_newlink, device);
 
-       connman_rtnl_send_getlink();
-
        return 0;
 }
 
-static void ethernet_remove(struct connman_device *device)
+static void eth_dev_remove(struct connman_device *device)
 {
        struct ethernet_data *ethernet = connman_device_get_data(device);
 
@@ -106,12 +436,24 @@ static void ethernet_remove(struct connman_device *device)
 
        connman_device_set_data(device, NULL);
 
+#if defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET
+       if (!ethernet)
+              return;
+
+       if (ethernet->interface) {
+               g_supplicant_interface_remove(ethernet->interface, NULL, NULL);
+               ethernet->interface = NULL;
+       }
+#endif /* defined TIZEN_EXT && defined TIZEN_EXT_EAP_ON_ETHERNET */
+
        connman_rtnl_remove_watch(ethernet->watch);
 
+       remove_network(device, ethernet);
+
        g_free(ethernet);
 }
 
-static int ethernet_enable(struct connman_device *device)
+static int eth_dev_enable(struct connman_device *device)
 {
        struct ethernet_data *ethernet = connman_device_get_data(device);
 
@@ -120,7 +462,7 @@ static int ethernet_enable(struct connman_device *device)
        return connman_inet_ifup(ethernet->index);
 }
 
-static int ethernet_disable(struct connman_device *device)
+static int eth_dev_disable(struct connman_device *device)
 {
        struct ethernet_data *ethernet = connman_device_get_data(device);
 
@@ -129,23 +471,210 @@ static int ethernet_disable(struct connman_device *device)
        return connman_inet_ifdown(ethernet->index);
 }
 
-static struct connman_device_driver ethernet_driver = {
+static struct connman_device_driver eth_dev_driver = {
        .name           = "ethernet",
        .type           = CONNMAN_DEVICE_TYPE_ETHERNET,
-       .probe          = ethernet_probe,
-       .remove         = ethernet_remove,
-       .enable         = ethernet_enable,
-       .disable        = ethernet_disable,
+       .probe          = eth_dev_probe,
+       .remove         = eth_dev_remove,
+       .enable         = eth_dev_enable,
+       .disable        = eth_dev_disable,
+};
+
+static int eth_tech_probe(struct connman_technology *technology)
+{
+       return 0;
+}
+
+static void eth_tech_remove(struct connman_technology *technology)
+{
+       DBG("");
+}
+
+static GList *eth_interface_list = NULL;
+
+static void eth_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(eth_interface_list, GINT_TO_POINTER((int)index)))
+               return;
+
+       eth_interface_list = g_list_prepend(eth_interface_list,
+                                       (GINT_TO_POINTER((int) index)));
+}
+
+static void eth_tech_remove_interface(struct connman_technology *technology,
+                                                               int index)
+{
+       DBG("index %d", index);
+
+       eth_interface_list = g_list_remove(eth_interface_list,
+                                       GINT_TO_POINTER((int) index));
+}
+
+static void eth_tech_enable_tethering(struct connman_technology *technology,
+                                               const char *bridge)
+{
+       GList *list;
+       struct ethernet_data *ethernet;
+
+       for (list = eth_interface_list; list; list = list->next) {
+               int index = GPOINTER_TO_INT(list->data);
+               struct connman_device *device =
+                       connman_device_find_by_index(index);
+
+               if (device) {
+                       ethernet = connman_device_get_data(device);
+                       if (ethernet)
+                               remove_network(device, ethernet);
+               }
+
+               connman_technology_tethering_notify(technology, true);
+
+               connman_inet_ifup(index);
+
+               connman_inet_add_to_bridge(index, bridge);
+
+               eth_tethering = true;
+       }
+}
+
+static void eth_tech_disable_tethering(struct connman_technology *technology,
+                                               const char *bridge)
+{
+       GList *list;
+
+       for (list = eth_interface_list; list; list = list->next) {
+               int index = GPOINTER_TO_INT(list->data);
+               struct connman_device *device =
+                       connman_device_find_by_index(index);
+
+               connman_inet_remove_from_bridge(index, bridge);
+
+               connman_technology_tethering_notify(technology, false);
+
+               if (device)
+                       connman_device_reconnect_service(device);
+
+               eth_tethering = false;
+       }
+}
+
+static int eth_tech_set_tethering(struct connman_technology *technology,
+                               const char *identifier, const char *passphrase,
+                               const char *bridge, bool enabled)
+{
+       if (!connman_technology_is_tethering_allowed(
+                       CONNMAN_SERVICE_TYPE_ETHERNET))
+               return 0;
+
+       DBG("bridge %s enabled %d", bridge, enabled);
+
+       if (enabled)
+               eth_tech_enable_tethering(technology, bridge);
+       else
+               eth_tech_disable_tethering(technology, bridge);
+
+       return 0;
+}
+
+static struct connman_technology_driver eth_tech_driver = {
+       .name                   = "ethernet",
+       .type                   = CONNMAN_SERVICE_TYPE_ETHERNET,
+       .probe                  = eth_tech_probe,
+       .remove                 = eth_tech_remove,
+       .add_interface          = eth_tech_add_interface,
+       .remove_interface       = eth_tech_remove_interface,
+       .set_tethering          = eth_tech_set_tethering,
+};
+
+#if defined TIZEN_EXT_WIFI_MESH
+static int eth_mesh_add_to_bridge(const char *bridge)
+{
+       GList *list;
+       struct ethernet_data *ethernet;
+
+       DBG("Add ethernet to bridge %s", bridge);
+
+       for (list = eth_interface_list; list; list = list->next) {
+               int index = GPOINTER_TO_INT(list->data);
+               struct connman_device *device =
+                       connman_device_find_by_index(index);
+
+               if (device) {
+                       ethernet = connman_device_get_data(device);
+                       if (ethernet)
+                               remove_network(device, ethernet);
+               }
+
+               connman_inet_ifup(index);
+
+               connman_inet_add_to_bridge(index, bridge);
+       }
+
+       return 0;
+}
+
+static int eth_mesh_remove_from_bridge(const char *bridge)
+{
+       GList *list;
+
+       DBG("Remove ethernet from bridge %s", bridge);
+
+       for (list = eth_interface_list; list; list = list->next) {
+               int index = GPOINTER_TO_INT(list->data);
+
+               connman_inet_remove_from_bridge(index, bridge);
+       }
+
+       return 0;
+}
+
+static struct connman_mesh_eth_driver eth_mesh_driver = {
+       .add_to_bridge          = eth_mesh_add_to_bridge,
+       .remove_from_bridge     = eth_mesh_remove_from_bridge,
 };
+#endif
 
 static int ethernet_init(void)
 {
-       return connman_device_driver_register(&ethernet_driver);
+       int err;
+
+       err = connman_technology_driver_register(&eth_tech_driver);
+       if (err < 0)
+               return err;
+
+#if defined TIZEN_EXT_WIFI_MESH
+       err = connman_mesh_eth_driver_register(&eth_mesh_driver);
+       if (err < 0)
+               return err;
+#endif
+
+       err = connman_network_driver_register(&eth_network_driver);
+       if (err < 0)
+               return err;
+
+       err = connman_device_driver_register(&eth_dev_driver);
+       if (err < 0) {
+               connman_network_driver_unregister(&eth_network_driver);
+               return err;
+       }
+
+       return 0;
 }
 
 static void ethernet_exit(void)
 {
-       connman_device_driver_unregister(&ethernet_driver);
+       connman_technology_driver_unregister(&eth_tech_driver);
+
+#if defined TIZEN_EXT_WIFI_MESH
+       connman_mesh_eth_driver_unregister(&eth_mesh_driver);
+#endif
+
+       connman_network_driver_unregister(&eth_network_driver);
+
+       connman_device_driver_unregister(&eth_dev_driver);
 }
 
 CONNMAN_PLUGIN_DEFINE(ethernet, "Ethernet interface plugin", VERSION,