dnsproxy: Only one copy of the relevant buffers will be made to a TCP request
[framework/connectivity/connman.git] / plugins / dundee.c
index c61a743..045f639 100644 (file)
@@ -23,6 +23,7 @@
 #include <config.h>
 #endif
 
+#include <string.h>
 #include <errno.h>
 
 #include <gdbus.h>
 #include <connman/plugin.h>
 #include <connman/device.h>
 #include <connman/network.h>
+#include <connman/inet.h>
 #include <connman/dbus.h>
 
 #define DUNDEE_SERVICE                 "org.ofono.dundee"
+#define DUNDEE_MANAGER_INTERFACE       DUNDEE_SERVICE ".Manager"
+#define DUNDEE_DEVICE_INTERFACE                DUNDEE_SERVICE ".Device"
+
+#define DEVICE_ADDED                   "DeviceAdded"
+#define DEVICE_REMOVED                 "DeviceRemoved"
+#define PROPERTY_CHANGED               "PropertyChanged"
+
+#define GET_PROPERTIES                 "GetProperties"
+#define SET_PROPERTY                   "SetProperty"
+#define GET_DEVICES                    "GetDevices"
+
+#define TIMEOUT 40000
 
 static DBusConnection *connection;
 
 static GHashTable *dundee_devices = NULL;
 
 struct dundee_data {
+       char *path;
+       char *name;
+
+       struct connman_device *device;
+       struct connman_network *network;
+
+       connman_bool_t active;
+
+       int index;
+
+       /* IPv4 Settings */
+       enum connman_ipconfig_method method;
+       struct connman_ipaddress *address;
+       char *nameservers;
+
+       DBusPendingCall *call;
 };
 
+static char *get_ident(const char *path)
+{
+       char *pos;
+
+       if (*path != '/')
+               return NULL;
+
+       pos = strrchr(path, '/');
+       if (pos == NULL)
+               return NULL;
+
+       return pos + 1;
+}
+
+static void create_device(struct dundee_data *info)
+{
+       struct connman_device *device;
+       char *ident;
+
+       DBG("%s", info->path);
+
+       ident = g_strdup(get_ident(info->path));
+       device = connman_device_create(ident, CONNMAN_DEVICE_TYPE_BLUETOOTH);
+       if (device == NULL)
+               goto out;
+
+       DBG("device %p", device);
+
+       connman_device_set_ident(device, ident);
+
+       connman_device_set_string(device, "Path", info->path);
+
+       connman_device_set_data(device, info);
+
+       if (connman_device_register(device) < 0) {
+               connman_error("Failed to register DUN device");
+               connman_device_unref(device);
+               goto out;
+       }
+
+       info->device = device;
+
+out:
+       g_free(ident);
+}
+
+static void destroy_device(struct dundee_data *info)
+{
+       connman_device_set_powered(info->device, FALSE);
+
+       if (info->call != NULL)
+               dbus_pending_call_cancel(info->call);
+
+       if (info->network != NULL) {
+               connman_device_remove_network(info->device, info->network);
+               connman_network_unref(info->network);
+               info->network = NULL;
+       }
+
+       connman_device_unregister(info->device);
+       connman_device_unref(info->device);
+
+       info->device = NULL;
+}
+
 static void device_destroy(gpointer data)
 {
        struct dundee_data *info = data;
 
+       if (info->device != NULL)
+               destroy_device(info);
+
+       g_free(info->path);
+       g_free(info->name);
+
        g_free(info);
 }
 
+static void create_network(struct dundee_data *info)
+{
+       struct connman_network *network;
+       const char *group;
+
+       DBG("%s", info->path);
+
+       network = connman_network_create(info->path,
+                               CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN);
+       if (network == NULL)
+               return;
+
+       DBG("network %p", network);
+
+       connman_network_set_data(network, info);
+
+       connman_network_set_string(network, "Path",
+                               info->path);
+
+       connman_network_set_name(network, info->name);
+
+       group = get_ident(info->path);
+       connman_network_set_group(network, group);
+
+       connman_network_set_available(network, TRUE);
+
+       if (connman_device_add_network(info->device, network) < 0) {
+               connman_network_unref(network);
+               return;
+       }
+
+       info->network = network;
+}
+
+static void set_connected(struct dundee_data *info)
+{
+       DBG("%s", info->path);
+
+       connman_inet_ifup(info->index);
+
+       connman_network_set_index(info->network, info->index);
+       connman_network_set_ipv4_method(info->network,
+                                       CONNMAN_IPCONFIG_METHOD_FIXED);
+       connman_network_set_ipaddress(info->network, info->address);
+       connman_network_set_nameservers(info->network, info->nameservers);
+
+       connman_network_set_connected(info->network, TRUE);
+}
+
+static void set_disconnected(struct dundee_data *info)
+{
+       DBG("%s", info->path);
+
+       connman_network_set_connected(info->network, FALSE);
+       connman_inet_ifdown(info->index);
+}
+
+static void set_property_reply(DBusPendingCall *call, void *user_data)
+{
+       struct dundee_data *info = user_data;
+       DBusMessage *reply;
+       DBusError error;
+
+       DBG("%s", info->path);
+
+       info->call = NULL;
+
+       dbus_error_init(&error);
+
+       reply = dbus_pending_call_steal_reply(call);
+
+       if (dbus_set_error_from_message(&error, reply)) {
+               connman_error("Failed to change property: %s %s %s",
+                               info->path, error.name, error.message);
+               dbus_error_free(&error);
+
+               connman_network_set_error(info->network,
+                                       CONNMAN_NETWORK_ERROR_ASSOCIATE_FAIL);
+       }
+
+       dbus_message_unref(reply);
+
+       dbus_pending_call_unref(call);
+}
+
+static int set_property(struct dundee_data *info,
+                       const char *property, int type, void *value)
+{
+       DBusMessage *message;
+       DBusMessageIter iter;
+
+       DBG("%s %s", info->path, property);
+
+       message = dbus_message_new_method_call(DUNDEE_SERVICE, info->path,
+                                       DUNDEE_DEVICE_INTERFACE, SET_PROPERTY);
+       if (message == NULL)
+               return -ENOMEM;
+
+       dbus_message_iter_init_append(message, &iter);
+       connman_dbus_property_append_basic(&iter, property, type, value);
+
+       if (dbus_connection_send_with_reply(connection, message,
+                       &info->call, TIMEOUT) == FALSE) {
+               connman_error("Failed to change property: %s %s",
+                               info->path, property);
+               dbus_message_unref(message);
+               return -EINVAL;
+       }
+
+       if (info->call == NULL) {
+               connman_error("D-Bus connection not available");
+               dbus_message_unref(message);
+               return -EINVAL;
+       }
+
+       dbus_pending_call_set_notify(info->call, set_property_reply,
+                                       info, NULL);
+
+       dbus_message_unref(message);
+
+       return -EINPROGRESS;
+}
+
+static int device_set_active(struct dundee_data *info)
+{
+       dbus_bool_t active = TRUE;
+
+       DBG("%s", info->path);
+
+       return set_property(info, "Active", DBUS_TYPE_BOOLEAN,
+                               &active);
+}
+
+static int device_set_inactive(struct dundee_data *info)
+{
+       dbus_bool_t active = FALSE;
+       int err;
+
+       DBG("%s", info->path);
+
+       err = set_property(info, "Active", DBUS_TYPE_BOOLEAN,
+                               &active);
+       if (err == -EINPROGRESS)
+               return 0;
+
+       return err;
+}
+
 static int network_probe(struct connman_network *network)
 {
        DBG("network %p", network);
@@ -63,16 +312,20 @@ static void network_remove(struct connman_network *network)
 
 static int network_connect(struct connman_network *network)
 {
+       struct dundee_data *info = connman_network_get_data(network);
+
        DBG("network %p", network);
 
-       return 0;
+       return device_set_active(info);
 }
 
 static int network_disconnect(struct connman_network *network)
 {
+       struct dundee_data *info = connman_network_get_data(network);
+
        DBG("network %p", network);
 
-       return 0;
+       return device_set_inactive(info);
 }
 
 static struct connman_network_driver network_driver = {
@@ -86,9 +339,24 @@ static struct connman_network_driver network_driver = {
 
 static int dundee_probe(struct connman_device *device)
 {
+       GHashTableIter iter;
+       gpointer key, value;
+
        DBG("device %p", device);
 
-       return 0;
+       if (dundee_devices == NULL)
+               return -ENOTSUP;
+
+       g_hash_table_iter_init(&iter, dundee_devices);
+
+       while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
+               struct dundee_data *info = value;
+
+               if (device == info->device)
+                       return 0;
+       }
+
+       return -ENOTSUP;
 }
 
 static void dundee_remove(struct connman_device *device)
@@ -119,12 +387,382 @@ static struct connman_device_driver dundee_driver = {
        .disable        = dundee_disable,
 };
 
+static char *extract_nameservers(DBusMessageIter *array)
+{
+       DBusMessageIter entry;
+       char *nameservers = NULL;
+       char *tmp;
+
+       dbus_message_iter_recurse(array, &entry);
+
+       while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_STRING) {
+               const char *nameserver;
+
+               dbus_message_iter_get_basic(&entry, &nameserver);
+
+               if (nameservers == NULL) {
+                       nameservers = g_strdup(nameserver);
+               } else {
+                       tmp = nameservers;
+                       nameservers = g_strdup_printf("%s %s", tmp, nameserver);
+                       g_free(tmp);
+               }
+
+               dbus_message_iter_next(&entry);
+       }
+
+       return nameservers;
+}
+
+static void extract_settings(DBusMessageIter *array,
+                               struct dundee_data *info)
+{
+       DBusMessageIter dict;
+       char *address = NULL, *gateway = NULL;
+       char *nameservers = NULL;
+       const char *interface = NULL;
+       int index = -1;
+
+       if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY)
+               return;
+
+       dbus_message_iter_recurse(array, &dict);
+
+       while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
+               DBusMessageIter entry, value;
+               const char *key, *val;
+
+               dbus_message_iter_recurse(&dict, &entry);
+               dbus_message_iter_get_basic(&entry, &key);
+
+               dbus_message_iter_next(&entry);
+               dbus_message_iter_recurse(&entry, &value);
+
+               if (g_str_equal(key, "Interface") == TRUE) {
+                       dbus_message_iter_get_basic(&value, &interface);
+
+                       DBG("Interface %s", interface);
+
+                       index = connman_inet_ifindex(interface);
+
+                       DBG("index %d", index);
+
+                       if (index < 0)
+                               break;
+               } else if (g_str_equal(key, "Address") == TRUE) {
+                       dbus_message_iter_get_basic(&value, &val);
+
+                       address = g_strdup(val);
+
+                       DBG("Address %s", address);
+               } else if (g_str_equal(key, "DomainNameServers") == TRUE) {
+                       nameservers = extract_nameservers(&value);
+
+                       DBG("Nameservers %s", nameservers);
+               } else if (g_str_equal(key, "Gateway") == TRUE) {
+                       dbus_message_iter_get_basic(&value, &val);
+
+                       gateway = g_strdup(val);
+
+                       DBG("Gateway %s", gateway);
+               }
+
+               dbus_message_iter_next(&dict);
+       }
+
+       if (index < 0)
+               goto out;
+
+       info->address = connman_ipaddress_alloc(CONNMAN_IPCONFIG_TYPE_IPV4);
+       if (info->address == NULL)
+               goto out;
+
+       info->index = index;
+       connman_ipaddress_set_ipv4(info->address, address, NULL, gateway);
+
+       info->nameservers = nameservers;
+
+out:
+       if (info->nameservers != nameservers)
+               g_free(nameservers);
+
+       g_free(address);
+       g_free(gateway);
+}
+
+static gboolean device_changed(DBusConnection *connection,
+                               DBusMessage *message,
+                               void *user_data)
+{
+       const char *path = dbus_message_get_path(message);
+       struct dundee_data *info = NULL;
+       DBusMessageIter iter, value;
+       const char *key;
+       const char *signature = DBUS_TYPE_STRING_AS_STRING
+               DBUS_TYPE_VARIANT_AS_STRING;
+
+       if (dbus_message_has_signature(message, signature) == FALSE) {
+               connman_error("dundee signature does not match");
+               return TRUE;
+       }
+
+       info = g_hash_table_lookup(dundee_devices, path);
+       if (info == NULL)
+               return TRUE;
+
+       if (dbus_message_iter_init(message, &iter) == FALSE)
+               return TRUE;
+
+       dbus_message_iter_get_basic(&iter, &key);
+
+       dbus_message_iter_next(&iter);
+       dbus_message_iter_recurse(&iter, &value);
+
+       /*
+        * Dundee guarantees the ordering of Settings and
+        * Active. Settings will always be send before Active = True.
+        * That means we don't have to order here.
+        */
+       if (g_str_equal(key, "Active") == TRUE) {
+               dbus_message_iter_get_basic(&value, &info->active);
+
+               DBG("%s Active %d", info->path, info->active);
+
+               if (info->active == TRUE)
+                       set_connected(info);
+               else
+                       set_disconnected(info);
+       } else if (g_str_equal(key, "Settings") == TRUE) {
+               DBG("%s Settings", info->path);
+
+               extract_settings(&value, info);
+       } else if (g_str_equal(key, "Name") == TRUE) {
+               char *name;
+
+               dbus_message_iter_get_basic(&value, &name);
+
+               g_free(info->name);
+               info->name = g_strdup(name);
+
+               DBG("%s Name %s", info->path, info->name);
+
+               connman_network_set_name(info->network, info->name);
+               connman_network_update(info->network);
+       }
+
+       return TRUE;
+}
+
+static void add_device(const char *path, DBusMessageIter *properties)
+{
+       struct dundee_data *info;
+
+       info = g_hash_table_lookup(dundee_devices, path);
+       if (info != NULL)
+               return;
+
+       info = g_try_new0(struct dundee_data, 1);
+       if (info == NULL)
+               return;
+
+       info->path = g_strdup(path);
+
+       while (dbus_message_iter_get_arg_type(properties) ==
+                       DBUS_TYPE_DICT_ENTRY) {
+               DBusMessageIter entry, value;
+               const char *key;
+
+               dbus_message_iter_recurse(properties, &entry);
+               dbus_message_iter_get_basic(&entry, &key);
+
+               dbus_message_iter_next(&entry);
+               dbus_message_iter_recurse(&entry, &value);
+
+               if (g_str_equal(key, "Active") == TRUE) {
+                       dbus_message_iter_get_basic(&value, &info->active);
+
+                       DBG("%s Active %d", info->path, info->active);
+               } else if (g_str_equal(key, "Settings") == TRUE) {
+                       DBG("%s Settings", info->path);
+
+                       extract_settings(&value, info);
+               } else if (g_str_equal(key, "Name") == TRUE) {
+                       char *name;
+
+                       dbus_message_iter_get_basic(&value, &name);
+
+                       info->name = g_strdup(name);
+
+                       DBG("%s Name %s", info->path, info->name);
+               }
+
+               dbus_message_iter_next(properties);
+       }
+
+       g_hash_table_insert(dundee_devices, g_strdup(path), info);
+
+       create_device(info);
+       create_network(info);
+
+       if (info->active == TRUE)
+               set_connected(info);
+}
+
+static gboolean device_added(DBusConnection *connection, DBusMessage *message,
+                               void *user_data)
+{
+       DBusMessageIter iter, properties;
+       const char *path;
+       const char *signature = DBUS_TYPE_OBJECT_PATH_AS_STRING
+               DBUS_TYPE_ARRAY_AS_STRING
+               DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+               DBUS_TYPE_STRING_AS_STRING
+               DBUS_TYPE_VARIANT_AS_STRING
+               DBUS_DICT_ENTRY_END_CHAR_AS_STRING;
+
+       if (dbus_message_has_signature(message, signature) == FALSE) {
+               connman_error("dundee signature does not match");
+               return TRUE;
+       }
+
+       DBG("");
+
+       if (dbus_message_iter_init(message, &iter) == FALSE)
+               return TRUE;
+
+       dbus_message_iter_get_basic(&iter, &path);
+
+       dbus_message_iter_next(&iter);
+       dbus_message_iter_recurse(&iter, &properties);
+
+       add_device(path, &properties);
+
+       return TRUE;
+}
+
+static void remove_device(DBusConnection *connection, const char *path)
+{
+       DBG("path %s", path);
+
+       g_hash_table_remove(dundee_devices, path);
+}
+
+static gboolean device_removed(DBusConnection *connection, DBusMessage *message,
+                               void *user_data)
+{
+       const char *path;
+       const char *signature = DBUS_TYPE_OBJECT_PATH_AS_STRING;
+
+       if (dbus_message_has_signature(message, signature) == FALSE) {
+               connman_error("dundee signature does not match");
+               return TRUE;
+       }
+
+       dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path,
+                               DBUS_TYPE_INVALID);
+       remove_device(connection, path);
+       return TRUE;
+}
+
+static void manager_get_devices_reply(DBusPendingCall *call, void *user_data)
+{
+       DBusMessage *reply;
+       DBusError error;
+       DBusMessageIter array, dict;
+       const char *signature = DBUS_TYPE_ARRAY_AS_STRING
+               DBUS_STRUCT_BEGIN_CHAR_AS_STRING
+               DBUS_TYPE_OBJECT_PATH_AS_STRING
+               DBUS_TYPE_ARRAY_AS_STRING
+               DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+               DBUS_TYPE_STRING_AS_STRING
+               DBUS_TYPE_VARIANT_AS_STRING
+               DBUS_DICT_ENTRY_END_CHAR_AS_STRING
+               DBUS_STRUCT_END_CHAR_AS_STRING;
+
+       DBG("");
+
+       reply = dbus_pending_call_steal_reply(call);
+
+       if (dbus_message_has_signature(reply, signature) == FALSE) {
+               connman_error("dundee signature does not match");
+               goto done;
+       }
+
+       dbus_error_init(&error);
+
+       if (dbus_set_error_from_message(&error, reply) == TRUE) {
+               connman_error("%s", error.message);
+               dbus_error_free(&error);
+               goto done;
+       }
+
+       if (dbus_message_iter_init(reply, &array) == FALSE)
+               goto done;
+
+       dbus_message_iter_recurse(&array, &dict);
+
+       while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_STRUCT) {
+               DBusMessageIter value, properties;
+               const char *path;
+
+               dbus_message_iter_recurse(&dict, &value);
+               dbus_message_iter_get_basic(&value, &path);
+
+               dbus_message_iter_next(&value);
+               dbus_message_iter_recurse(&value, &properties);
+
+               add_device(path, &properties);
+
+               dbus_message_iter_next(&dict);
+       }
+
+done:
+       dbus_message_unref(reply);
+
+       dbus_pending_call_unref(call);
+}
+
+static int manager_get_devices(void)
+{
+       DBusMessage *message;
+       DBusPendingCall *call;
+
+       DBG("");
+
+       message = dbus_message_new_method_call(DUNDEE_SERVICE, "/",
+                                       DUNDEE_MANAGER_INTERFACE, GET_DEVICES);
+       if (message == NULL)
+               return -ENOMEM;
+
+       if (dbus_connection_send_with_reply(connection, message,
+                                               &call, TIMEOUT) == FALSE) {
+               connman_error("Failed to call GetDevices()");
+               dbus_message_unref(message);
+               return -EINVAL;
+       }
+
+       if (call == NULL) {
+               connman_error("D-Bus connection not available");
+               dbus_message_unref(message);
+               return -EINVAL;
+       }
+
+       dbus_pending_call_set_notify(call, manager_get_devices_reply,
+                                       NULL, NULL);
+
+       dbus_message_unref(message);
+
+       return -EINPROGRESS;
+}
+
 static void dundee_connect(DBusConnection *connection, void *user_data)
 {
        DBG("connection %p", connection);
 
        dundee_devices = g_hash_table_new_full(g_str_hash, g_str_equal,
                                        g_free, device_destroy);
+
+       manager_get_devices();
 }
 
 static void dundee_disconnect(DBusConnection *connection, void *user_data)
@@ -136,6 +774,9 @@ static void dundee_disconnect(DBusConnection *connection, void *user_data)
 }
 
 static guint watch;
+static guint added_watch;
+static guint removed_watch;
+static guint device_watch;
 
 static int dundee_init(void)
 {
@@ -148,7 +789,25 @@ static int dundee_init(void)
        watch = g_dbus_add_service_watch(connection, DUNDEE_SERVICE,
                        dundee_connect, dundee_disconnect, NULL, NULL);
 
-       if (watch == 0) {
+       added_watch = g_dbus_add_signal_watch(connection, NULL, NULL,
+                                               DUNDEE_MANAGER_INTERFACE,
+                                               DEVICE_ADDED, device_added,
+                                               NULL, NULL);
+
+       removed_watch = g_dbus_add_signal_watch(connection, NULL, NULL,
+                                               DUNDEE_MANAGER_INTERFACE,
+                                               DEVICE_REMOVED, device_removed,
+                                               NULL, NULL);
+
+       device_watch = g_dbus_add_signal_watch(connection, NULL, NULL,
+                                               DUNDEE_DEVICE_INTERFACE,
+                                               PROPERTY_CHANGED,
+                                               device_changed,
+                                               NULL, NULL);
+
+
+       if (watch == 0 || added_watch == 0 || removed_watch == 0 ||
+                       device_watch == 0) {
                err = -EIO;
                goto remove;
        }
@@ -167,6 +826,9 @@ static int dundee_init(void)
 
 remove:
        g_dbus_remove_watch(connection, watch);
+       g_dbus_remove_watch(connection, added_watch);
+       g_dbus_remove_watch(connection, removed_watch);
+       g_dbus_remove_watch(connection, device_watch);
 
        dbus_connection_unref(connection);
 
@@ -176,6 +838,9 @@ remove:
 static void dundee_exit(void)
 {
        g_dbus_remove_watch(connection, watch);
+       g_dbus_remove_watch(connection, added_watch);
+       g_dbus_remove_watch(connection, removed_watch);
+       g_dbus_remove_watch(connection, device_watch);
 
        connman_device_driver_unregister(&dundee_driver);
        connman_network_driver_unregister(&network_driver);