[PATCH 3/6] dun_gw: Add DUN emulator plugin
Zhenhua Zhang
zhenhua.zhang at intel.com
Sun Jul 4 22:45:06 PDT 2010
It implements DUN server role and register itself as agent to BlueZ
interface.
---
Makefile.am | 3 +
plugins/dun_gw.c | 274 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 277 insertions(+), 0 deletions(-)
create mode 100644 plugins/dun_gw.c
diff --git a/Makefile.am b/Makefile.am
index 8ecb2d9..908e945 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -244,6 +244,9 @@ builtin_sources += plugins/bluetooth.c plugins/bluetooth.h
builtin_modules += hfp
builtin_sources += plugins/hfp.c plugins/bluetooth.h
+builtin_modules += dun_gw
+builtin_sources += plugins/dun_gw.c
+
builtin_modules += palmpre
builtin_sources += plugins/palmpre.c
diff --git a/plugins/dun_gw.c b/plugins/dun_gw.c
new file mode 100644
index 0000000..95b176c
--- /dev/null
+++ b/plugins/dun_gw.c
@@ -0,0 +1,274 @@
+/*
+ * oFono - Open Source Telephony
+ *
+ * Copyright (C) 2008-2010 Intel Corporation. All rights reserved.
+ * Copyright (C) 2010 Gustavo F. Padovan <gustavo at padovan.org>
+ *
+ * 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 <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <glib.h>
+#include <ofono.h>
+
+#define OFONO_API_SUBJECT_TO_CHANGE
+#include <ofono/plugin.h>
+#include <ofono/log.h>
+#include <ofono/modem.h>
+
+#include <ofono/dbus.h>
+
+#include "gdbus.h"
+#include "bluetooth.h"
+
+#ifndef DBUS_TYPE_UNIX_FD
+#define DBUS_TYPE_UNIX_FD -1
+#endif
+
+#define BLUEZ_DUN_INTERFACE BLUEZ_SERVICE ".SerialDUN"
+#define DUN_AGENT_INTERFACE "org.bluez.DUNAgent"
+
+static DBusConnection *connection;
+static GHashTable *adapter_hash;
+
+struct dun_data {
+ char *adapter;
+ char *path;
+ gboolean agent_registered;
+ struct ofono_emulator *e;
+};
+
+static struct ofono_emulator_driver dun_gw_driver;
+
+static int dun_gw_create_adapter(const char *path, const char *dev_addr,
+ const char *adapter, const char *alias)
+{
+ GSList *l;
+ struct dun_data *data;
+
+ /* Ignore if we already have this adapter */
+ l = g_hash_table_lookup(adapter_hash, (char *)adapter);
+ if (l != NULL)
+ return -EALREADY;
+
+ DBG("Adding adapter: %s", adapter);
+
+ data = g_try_new0(struct dun_data, 1);
+ if (!data)
+ return -ENOMEM;
+
+ data->adapter = g_strdup(adapter);
+ data->path = g_strdup(path);
+ data->agent_registered = FALSE;
+
+ g_hash_table_insert(adapter_hash, g_strdup(adapter), data);
+
+ return 0;
+}
+
+static gboolean remove_adapter(gpointer key, gpointer value, gpointer user_data)
+{
+ struct dun_data *data = value;
+
+ if (data) {
+ g_free(data->adapter);
+ g_free(data->path);
+ g_free(data);
+ data = NULL;
+ }
+
+ return TRUE;
+}
+
+static void dun_gw_remove_all_adapter()
+{
+ if (adapter_hash == NULL)
+ return;
+
+ DBG("");
+
+ g_hash_table_foreach_remove(adapter_hash, remove_adapter, NULL);
+}
+
+static DBusMessage *dun_agent_new_connection(DBusConnection *conn,
+ DBusMessage *msg,
+ void *user_data)
+{
+ DBusMessage *reply;
+ int fd;
+
+ if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_UNIX_FD, &fd,
+ DBUS_TYPE_INVALID)) {
+ reply = g_dbus_create_error(msg, DUN_AGENT_INTERFACE, ".Failed",
+ "Invalid File Descriptor");
+ goto error;
+ }
+
+ return dbus_message_new_method_return(msg);
+
+error:
+ return reply;
+}
+
+static DBusMessage *dun_agent_release(DBusConnection *conn,
+ DBusMessage *msg, void *user_data)
+{
+ struct dun_data *data = user_data;
+ struct ofono_emulator *e = data->e;
+ const char *obj_path = ofono_emulator_get_path(e);
+
+ g_dbus_unregister_interface(connection, obj_path, DUN_AGENT_INTERFACE);
+ data->agent_registered = FALSE;
+
+ ofono_emulator_remove(e);
+
+ return dbus_message_new_method_return(msg);
+}
+
+static GDBusMethodTable agent_methods[] = {
+ { "NewConnection", "h", "", dun_agent_new_connection,
+ G_DBUS_METHOD_FLAG_ASYNC },
+ { "Release", "", "", dun_agent_release },
+ { NULL, NULL, NULL, NULL }
+};
+
+static int dun_gw_probe(struct ofono_emulator *e)
+{
+ char *adapter = NULL;
+ struct dun_data *data = NULL;
+ const char *obj_path = ofono_emulator_get_path(e);
+ GHashTableIter hash_iter;
+ gpointer key, value;
+
+ DBG("%p", e);
+
+ if (g_hash_table_size(adapter_hash) == 0) {
+ DBG("No Bluetooth adapater found in system");
+ return -EINVAL;
+ }
+
+ g_hash_table_iter_init(&hash_iter, adapter_hash);
+ while (g_hash_table_iter_next(&hash_iter, &key, &value)) {
+ adapter = key;
+ data = value;
+
+ /* Find the adapter that has no DUN GW register yet */
+ if (data->agent_registered == FALSE)
+ break;
+ }
+
+ if (!adapter || !data)
+ return -EINVAL;
+
+ /* Register dbus interface */
+ g_dbus_register_interface(connection, obj_path, DUN_AGENT_INTERFACE,
+ agent_methods, NULL, NULL, data, NULL);
+
+ data->e = e;
+ ofono_emulator_set_data(e, data);
+
+ return 0;
+}
+
+static void dun_gw_remove(struct ofono_emulator *e)
+{
+ struct dun_data *data = ofono_emulator_get_data(e);
+ const char *obj_path = ofono_emulator_get_path(e);
+
+ DBG("%p", e);
+
+ if (!data)
+ return;
+
+ g_dbus_unregister_interface(connection, obj_path, DUN_AGENT_INTERFACE);
+
+ g_hash_table_remove(adapter_hash, data->adapter);
+ remove_adapter(data->adapter, data, NULL);
+
+ ofono_emulator_set_data(e, NULL);
+
+ return;
+}
+
+static int dun_gw_enable(struct ofono_emulator *e, int fd)
+{
+ DBG("%p", e);
+
+ return 0;
+}
+
+static int dun_gw_disable(struct ofono_emulator *e)
+{
+ DBG("%p", e);
+
+ return 0;
+}
+
+static struct ofono_emulator_driver dun_gw_driver = {
+ .name = "dun_gw",
+ .type = OFONO_EMULATOR_TYPE_DUN,
+ .probe = dun_gw_probe,
+ .remove = dun_gw_remove,
+ .enable = dun_gw_enable,
+ .disable = dun_gw_disable,
+};
+
+static struct bluetooth_profile dun_gw_profile = {
+ .name = "dun_gw",
+ .create = dun_gw_create_adapter,
+ .remove_all = dun_gw_remove_all_adapter,
+ .set_alias = NULL,
+};
+
+static int dun_gw_init()
+{
+ int err;
+
+ if (DBUS_TYPE_UNIX_FD < 0)
+ return -EBADF;
+
+ connection = ofono_dbus_get_connection();
+
+ err = ofono_emulator_driver_register(&dun_gw_driver);
+ if (err < 0)
+ return err;
+
+ err = bluetooth_register_service(DUN_GATEWAY, &dun_gw_profile);
+ if (err < 0) {
+ ofono_emulator_driver_unregister(&dun_gw_driver);
+ return err;
+ }
+
+ adapter_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
+ g_free, NULL);
+
+ return 0;
+}
+
+static void dun_gw_exit()
+{
+ bluetooth_unregister_service(DUN_GATEWAY);
+ ofono_emulator_driver_unregister(&dun_gw_driver);
+ dun_gw_remove_all_adapter();
+ g_hash_table_destroy(adapter_hash);
+}
+
+OFONO_PLUGIN_DEFINE(dun_gw, "Dial-up Networking Profile Plugins", VERSION,
+ OFONO_PLUGIN_PRIORITY_DEFAULT, dun_gw_init, dun_gw_exit)
--
1.6.3.3
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