1 files changed, 317 insertions, 0 deletions
diff --git a/src/peer.c b/src/peer.c
new file mode 100644
index 00000000..ce3b582e
--- /dev/null
+++ b/src/peer.c
@@ -0,0 +1,317 @@
+/*
+ *
+ *  Connection Manager
+ *
+ *  Copyright (C) 2014  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 <gdbus.h>
+
+#include "connman.h"
+
+static DBusConnection *connection = NULL;
+
+static GHashTable *peers_table = NULL;
+
+struct connman_peer {
+	char *identifier;
+	char *name;
+	char *path;
+};
+
+static void peer_free(gpointer data)
+{
+	struct connman_peer *peer = data;
+	connman_peer_destroy(peer);
+}
+
+static void append_properties(DBusMessageIter *iter, struct connman_peer *peer)
+{
+	const char *state = "disconnected";
+	DBusMessageIter dict;
+
+	connman_dbus_dict_open(iter, &dict);
+
+	connman_dbus_dict_append_basic(&dict, "State",
+					DBUS_TYPE_STRING, &state);
+	connman_dbus_dict_append_basic(&dict, "Name",
+					DBUS_TYPE_STRING, &peer->name);
+	connman_dbus_dict_append_dict(&dict, "IPv4", NULL, NULL);
+
+	connman_dbus_dict_close(iter, &dict);
+}
+
+static DBusMessage *get_peer_properties(DBusConnection *conn,
+						DBusMessage *msg, void *data)
+{
+	struct connman_peer *peer = data;
+	DBusMessageIter dict;
+	DBusMessage *reply;
+
+	reply = dbus_message_new_method_return(msg);
+	if (!reply)
+		return NULL;
+
+	dbus_message_iter_init_append(reply, &dict);
+	append_properties(&dict, peer);
+
+	return reply;
+}
+
+static void append_peer_struct(gpointer key, gpointer value,
+						gpointer user_data)
+{
+	DBusMessageIter *array = user_data;
+	struct connman_peer *peer = value;
+	DBusMessageIter entry;
+
+	dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
+							NULL, &entry);
+	dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
+							&peer->path);
+	append_properties(&entry, peer);
+	dbus_message_iter_close_container(array, &entry);
+}
+
+struct _peers_notify {
+	int id;
+	GHashTable *add;
+	GHashTable *remove;
+} *peers_notify;
+
+static void append_existing_and_new_peers(gpointer key,
+					gpointer value, gpointer user_data)
+{
+	struct connman_peer *peer = value;
+	DBusMessageIter *iter = user_data;
+	DBusMessageIter entry;
+
+	if (g_hash_table_lookup(peers_notify->add, peer->path)) {
+		DBG("new %s", peer->path);
+
+		append_peer_struct(key, value, user_data);
+		g_hash_table_remove(peers_notify->add, peer->path);
+	} else {
+		DBG("existing %s", peer->path);
+
+		dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
+								NULL, &entry);
+		dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
+								&peer->path);
+		dbus_message_iter_close_container(iter, &entry);
+	}
+}
+
+static void peer_append_all(DBusMessageIter *iter, void *user_data)
+{
+	g_hash_table_foreach(peers_table, append_existing_and_new_peers, iter);
+}
+
+static void append_removed(gpointer key, gpointer value, gpointer user_data)
+{
+	DBusMessageIter *iter = user_data;
+	char *objpath = key;
+
+	DBG("removed %s", objpath);
+	dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH, &objpath);
+}
+
+static void peer_append_removed(DBusMessageIter *iter, void *user_data)
+{
+	g_hash_table_foreach(peers_notify->remove, append_removed, iter);
+}
+
+static gboolean peer_send_changed(gpointer data)
+{
+	DBusMessage *signal;
+
+	DBG("");
+
+	peers_notify->id = 0;
+
+	signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
+				CONNMAN_MANAGER_INTERFACE, "PeersChanged");
+	if (!signal)
+		return FALSE;
+
+	__connman_dbus_append_objpath_dict_array(signal,
+						peer_append_all, NULL);
+	__connman_dbus_append_objpath_array(signal,
+						peer_append_removed, NULL);
+
+	dbus_connection_send(connection, signal, NULL);
+	dbus_message_unref(signal);
+
+	g_hash_table_remove_all(peers_notify->remove);
+	g_hash_table_remove_all(peers_notify->add);
+
+	return FALSE;
+}
+
+static void peer_schedule_changed(void)
+{
+	if (peers_notify->id != 0)
+		return;
+
+	peers_notify->id = g_timeout_add(100, peer_send_changed, NULL);
+}
+
+static void peer_added(struct connman_peer *peer)
+{
+	DBG("peer %p", peer);
+
+	g_hash_table_remove(peers_notify->remove, peer->path);
+	g_hash_table_replace(peers_notify->add, peer->path, peer);
+
+	peer_schedule_changed();
+}
+
+static void peer_removed(struct connman_peer *peer)
+{
+	DBG("peer %p", peer);
+
+	g_hash_table_remove(peers_notify->add, peer->path);
+	g_hash_table_replace(peers_notify->remove, g_strdup(peer->path), NULL);
+
+	peer_schedule_changed();
+}
+
+struct connman_peer *connman_peer_create(const char *identifier)
+{
+	struct connman_peer *peer;
+
+	peer = g_malloc0(sizeof(struct connman_peer));
+	peer->identifier = g_strdup_printf("peer_%s", identifier);
+
+	return peer;
+}
+
+void connman_peer_destroy(struct connman_peer *peer)
+{
+	if (!peer)
+		return;
+
+	if (peer->path) {
+		peer_removed(peer);
+		g_dbus_unregister_interface(connection, peer->path,
+						CONNMAN_PEER_INTERFACE);
+		g_free(peer->path);
+	}
+
+	g_free(peer->identifier);
+	g_free(peer->name);
+
+	g_free(peer);
+}
+
+void connman_peer_set_name(struct connman_peer *peer, const char *name)
+{
+	g_free(peer->name);
+	peer->name = g_strdup(name);
+}
+
+static const GDBusMethodTable peer_methods[] = {
+	{ GDBUS_METHOD("GetProperties",
+			NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
+			get_peer_properties) },
+	{ GDBUS_ASYNC_METHOD("Connect", NULL, NULL, NULL) },
+	{ GDBUS_METHOD("Disconnect", NULL, NULL, NULL) },
+	{ },
+};
+
+static const GDBusSignalTable peer_signals[] = {
+	{ GDBUS_SIGNAL("PropertyChanged",
+			GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
+	{ },
+};
+
+int connman_peer_register(struct connman_peer *peer)
+{
+	DBG("peer %p", peer);
+
+	if (peer->path)
+		return -EALREADY;
+
+	peer->path = g_strdup_printf("%s/peer/%s", CONNMAN_PATH,
+						peer->identifier);
+	DBG("path %s", peer->path);
+
+	g_hash_table_insert(peers_table, peer->identifier, peer);
+
+	g_dbus_register_interface(connection, peer->path,
+					CONNMAN_PEER_INTERFACE,
+					peer_methods, peer_signals,
+					NULL, peer, NULL);
+	peer_added(peer);
+
+	return 0;
+}
+
+void connman_peer_unregister(struct connman_peer *peer)
+{
+	DBG("peer %p", peer);
+
+	if (peer->path)
+		g_hash_table_remove(peers_table, peer->identifier);
+	else
+		connman_peer_destroy(peer);
+}
+
+struct connman_peer *connman_peer_get(const char *identifier)
+{
+	char *ident = g_strdup_printf("peer_%s", identifier);
+	struct connman_peer *peer;
+
+	peer = g_hash_table_lookup(peers_table, ident);
+	g_free(ident);
+
+	return peer;
+}
+
+void __connman_peer_list_struct(DBusMessageIter *array)
+{
+	g_hash_table_foreach(peers_table, append_peer_struct, array);
+}
+
+int __connman_peer_init(void)
+{
+	DBG("");
+
+	connection = connman_dbus_get_connection();
+
+	peers_table = g_hash_table_new_full(g_str_hash, g_str_equal,
+							NULL, peer_free);
+
+	peers_notify = g_new0(struct _peers_notify, 1);
+	peers_notify->add = g_hash_table_new(g_str_hash, g_str_equal);
+	peers_notify->remove = g_hash_table_new_full(g_str_hash, g_str_equal,
+								g_free, NULL);
+	return 0;
+}
+
+void __connman_peer_cleanup(void)
+{
+	DBG("");
+
+	g_hash_table_destroy(peers_table);
+	dbus_connection_unref(connection);
+}