profiles: Add experimental daemon for Apple's Wireless iAP

1 files changed, 465 insertions, 0 deletions

diff --git a/profiles/iap/main.c b/profiles/iap/main.c
new file mode 100644
index 000000000..5ba9d2b91
--- /dev/null
+++ b/profiles/iap/main.c
@@ -0,0 +1,465 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2012  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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 <errno.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/signalfd.h>
+
+#include <glib.h>
+#include <gdbus.h>
+
+#define IAP_PATH "/org/bluez/iap"
+
+#define IAP_UUID "00000000-deca-fade-deca-deafdecacafe"
+
+#define IAP_RECORD							\
+	"<?xml version=\"1.0\" encoding=\"UTF-8\" ?>			\
+	<record>							\
+		<attribute id=\"0x0001\">				\
+			<sequence>					\
+				<uuid value=\"%s\" />			\
+			</sequence>					\
+		</attribute>						\
+		<attribute id=\"0x0002\">				\
+			<uint32 value=\"0x00000000\" />			\
+		</attribute>						\
+		<attribute id=\"0x0004\">				\
+			<sequence>					\
+				<sequence>				\
+					<uuid value=\"0x0100\" />	\
+				</sequence>				\
+				<sequence>				\
+					<uuid value=\"0x0003\" />	\
+					<uint8 value=\"0x%02x\" />	\
+				</sequence>				\
+			</sequence>					\
+		</attribute>						\
+		<attribute id=\"0x0005\">				\
+			<sequence>					\
+				<uuid value=\"0x1002\" />		\
+			</sequence>					\
+		</attribute>						\
+		<attribute id=\"0x0006\">				\
+			<sequence>					\
+				<uint16 value=\"0x656e\" />		\
+				<uint16 value=\"0x006a\" />		\
+				<uint16 value=\"0x0100\" />		\
+				<uint16 value=\"0x6672\" />		\
+				<uint16 value=\"0x006a\" />		\
+				<uint16 value=\"0x0110\" />		\
+				<uint16 value=\"0x6465\" />		\
+				<uint16 value=\"0x006a\" />		\
+				<uint16 value=\"0x0120\" />		\
+				<uint16 value=\"0x6a61\" />		\
+				<uint16 value=\"0x006a\" />		\
+				<uint16 value=\"0x0130\" />		\
+			</sequence>					\
+		</attribute>						\
+		<attribute id=\"0x0008\">				\
+			<uint8 value=\"0xff\" />			\
+		</attribute>						\
+		<attribute id=\"0x0009\">				\
+			<sequence>					\
+				<sequence>				\
+					<uuid value=\"0x1101\" />	\
+					<uint16 value=\"0x0100\" />	\
+				</sequence>				\
+			</sequence>					\
+		</attribute>						\
+		<attribute id=\"0x0100\">				\
+			<text value=\"Wireless iAP\" />			\
+		</attribute>						\
+	</record>"
+
+static GMainLoop *main_loop;
+
+static guint iap_source = 0;
+
+static gboolean iap_handler(GIOChannel *channel, GIOCondition condition,
+							gpointer user_data)
+{
+	unsigned char buf[512];
+	ssize_t len;
+	int fd;
+
+	if (condition & (G_IO_NVAL | G_IO_ERR | G_IO_HUP)) {
+		iap_source = 0;
+		return FALSE;
+	}
+
+	fd = g_io_channel_unix_get_fd(channel);
+
+	len = read(fd, buf, sizeof(buf));
+	if (len < 0) {
+		iap_source = 0;
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+static guint create_source(int fd, GIOFunc func)
+{
+	GIOChannel *channel;
+	guint source;
+
+	channel = g_io_channel_unix_new(fd);
+
+	g_io_channel_set_close_on_unref(channel, TRUE);
+	g_io_channel_set_encoding(channel, NULL, NULL);
+	g_io_channel_set_buffered(channel, FALSE);
+
+	source = g_io_add_watch(channel,
+			G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL, func, NULL);
+
+	g_io_channel_unref(channel);
+
+	return source;
+}
+
+static void remove_source(const char *path)
+{
+	if (iap_source > 0) {
+		g_source_remove(iap_source);
+		iap_source = 0;
+	}
+}
+
+static DBusMessage *release_profile(DBusConnection *conn,
+					DBusMessage *msg, void *user_data)
+{
+	g_print("Profile released\n");
+
+	remove_source(IAP_PATH);
+
+	return dbus_message_new_method_return(msg);
+}
+
+static DBusMessage *new_connection(DBusConnection *conn,
+					DBusMessage *msg, void *user_data)
+{
+	const char *path, *device;
+	int fd;
+
+	g_print("New connection\n");
+
+	path = dbus_message_get_path(msg);
+
+	dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &device,
+				DBUS_TYPE_UNIX_FD, &fd, DBUS_TYPE_INVALID);
+
+	g_print("  from %s\n", path);
+	g_print("  for device %s with fd %d\n", device, fd);
+
+	if (iap_source == 0)
+		iap_source = create_source(fd, iap_handler);
+	else
+		close(fd);
+
+	return dbus_message_new_method_return(msg);
+}
+
+static DBusMessage *request_disconnection(DBusConnection *conn,
+					DBusMessage *msg, void *user_data)
+{
+	DBusMessageIter iter;
+	const char *path, *device;
+
+	g_print("Request disconnection\n");
+
+	path = dbus_message_get_path(msg);
+
+	dbus_message_iter_init(msg, &iter);
+	dbus_message_iter_get_basic(&iter, &device);
+
+	g_print("  from %s\n", path);
+	g_print("  for device %s\n", device);
+
+	remove_source(path);
+
+	return dbus_message_new_method_return(msg);
+}
+
+static DBusMessage *cancel_request(DBusConnection *conn,
+					DBusMessage *msg, void *user_data)
+{
+	const char *path;
+
+	g_print("Request canceled\n");
+
+	path = dbus_message_get_path(msg);
+
+	g_print("  from %s\n", path);
+
+	remove_source(path);
+
+	return dbus_message_new_method_return(msg);
+}
+
+static const GDBusMethodTable methods[] = {
+	{ GDBUS_METHOD("Release", NULL, NULL, release_profile) },
+	{ GDBUS_METHOD("NewConnection",
+			GDBUS_ARGS({ "device", "o" },
+					{ "fd", "h"}, { "opts", "a{sv}"}),
+			NULL, new_connection) },
+	{ GDBUS_METHOD("RequestDisconnection",
+			GDBUS_ARGS({ "device", "o" }),
+			NULL, request_disconnection) },
+	{ GDBUS_METHOD("Cancel", NULL, NULL, cancel_request) },
+	{ }
+};
+
+static void register_profile_setup(DBusMessageIter *iter, void *user_data)
+{
+	const char *path = IAP_PATH;
+	const char *uuid = IAP_UUID;
+	DBusMessageIter dict, entry, value;
+	dbus_uint16_t channel;
+	char *record;
+	const char *str;
+
+	dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH, &path);
+	dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING, &uuid);
+
+	dbus_message_iter_open_container(iter, DBUS_TYPE_ARRAY,
+				DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+				DBUS_TYPE_STRING_AS_STRING
+				DBUS_TYPE_VARIANT_AS_STRING
+				DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+
+	dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
+							NULL, &entry);
+	str = "Role";
+	dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &str);
+	dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
+					DBUS_TYPE_STRING_AS_STRING, &value);
+	str = "server";
+	dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &str);
+	dbus_message_iter_close_container(&entry, &value);
+	dbus_message_iter_close_container(&dict, &entry);
+
+	dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
+							NULL, &entry);
+	str = "Channel";
+	dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &str);
+	dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
+					DBUS_TYPE_UINT16_AS_STRING, &value);
+	channel = 23;
+	dbus_message_iter_append_basic(&value, DBUS_TYPE_UINT16, &channel);
+	dbus_message_iter_close_container(&entry, &value);
+	dbus_message_iter_close_container(&dict, &entry);
+
+	dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
+							NULL, &entry);
+	str = "ServiceRecord";
+	dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &str);
+	dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
+					DBUS_TYPE_STRING_AS_STRING, &value);
+	record = g_strdup_printf(IAP_RECORD, IAP_UUID, channel);
+	dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &record);
+	g_free(record);
+	dbus_message_iter_close_container(&entry, &value);
+	dbus_message_iter_close_container(&dict, &entry);
+
+	dbus_message_iter_close_container(iter, &dict);
+}
+
+static void register_profile_reply(DBusMessage *message, void *user_data)
+{
+	DBusError error;
+
+	dbus_error_init(&error);
+
+	if (dbus_set_error_from_message(&error, message) == TRUE) {
+		g_print("Failed to register profile\n");
+		return;
+	}
+
+	g_print("Profile registered\n");
+}
+
+static void connect_handler(DBusConnection *connection, void *user_data)
+{
+	GDBusClient *client = user_data;
+	GDBusProxy *proxy;
+
+	g_print("Bluetooth connected\n");
+
+	proxy = g_dbus_proxy_new(client, "/org/bluez",
+					"org.bluez.ProfileManager1");
+	if (!proxy)
+		return;
+
+	g_dbus_register_interface(connection, IAP_PATH,
+					"org.bluez.Profile1",
+					methods, NULL, NULL, NULL, NULL);
+
+	g_dbus_proxy_method_call(proxy, "RegisterProfile", 
+					register_profile_setup,
+					register_profile_reply, NULL, NULL);
+
+	g_dbus_proxy_unref(proxy);
+}
+
+static void disconnect_handler(DBusConnection *connection, void *user_data)
+{
+	g_print("Bluetooth disconnected\n");
+
+	g_dbus_unregister_interface(connection, IAP_PATH,
+						"org.bluez.Profile1");
+}
+
+static gboolean signal_handler(GIOChannel *channel, GIOCondition condition,
+							gpointer user_data)
+{
+	static unsigned int __terminated = 0;
+	struct signalfd_siginfo si;
+	ssize_t result;
+	int fd;
+
+	if (condition & (G_IO_NVAL | G_IO_ERR | G_IO_HUP)) {
+		g_main_loop_quit(main_loop);
+		return FALSE;
+	}
+
+	fd = g_io_channel_unix_get_fd(channel);
+
+	result = read(fd, &si, sizeof(si));
+	if (result != sizeof(si))
+		return FALSE;
+
+	switch (si.ssi_signo) {
+	case SIGINT:
+	case SIGTERM:
+		if (__terminated == 0)
+			g_main_loop_quit(main_loop);
+
+		__terminated = 1;
+		break;
+	}
+
+	return TRUE;
+}
+
+static guint setup_signalfd(void)
+{
+	GIOChannel *channel;
+	guint source;
+	sigset_t mask;
+	int fd;
+
+	sigemptyset(&mask);
+	sigaddset(&mask, SIGINT);
+	sigaddset(&mask, SIGTERM);
+
+	if (sigprocmask(SIG_BLOCK, &mask, NULL) < 0) {
+		perror("Failed to set signal mask");
+		return 0;
+	}
+
+	fd = signalfd(-1, &mask, 0);
+	if (fd < 0) {
+		perror("Failed to create signal descriptor");
+		return 0;
+	}
+
+	channel = g_io_channel_unix_new(fd);
+
+	g_io_channel_set_close_on_unref(channel, TRUE);
+	g_io_channel_set_encoding(channel, NULL, NULL);
+	g_io_channel_set_buffered(channel, FALSE);
+
+	source = g_io_add_watch(channel,
+				G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
+				signal_handler, NULL);
+
+	g_io_channel_unref(channel);
+
+	return source;
+}
+
+static gboolean option_version = FALSE;
+
+static GOptionEntry options[] = {
+	{ "version", 'v', 0, G_OPTION_ARG_NONE, &option_version,
+				"Show version information and exit" },
+	{ NULL },
+};
+
+int main(int argc, char *argv[])
+{
+	GOptionContext *context;
+	GError *error = NULL;
+	DBusConnection *dbus_conn;
+	GDBusClient *client;
+	guint signal;
+
+	context = g_option_context_new(NULL);
+	g_option_context_add_main_entries(context, options, NULL);
+
+	if (g_option_context_parse(context, &argc, &argv, &error) == FALSE) {
+		if (error != NULL) {
+			g_printerr("%s\n", error->message);
+			g_error_free(error);
+		} else
+			g_printerr("An unknown error occurred\n");
+		exit(1);
+	}
+
+	g_option_context_free(context);
+
+	if (option_version == TRUE) {
+		g_print("%s\n", VERSION);
+		exit(0);
+	}
+
+	main_loop = g_main_loop_new(NULL, FALSE);
+	dbus_conn = g_dbus_setup_bus(DBUS_BUS_SYSTEM, NULL, NULL);
+
+        signal = setup_signalfd();
+
+	client = g_dbus_client_new(dbus_conn, "org.bluez", "/org/bluez");
+
+	g_dbus_client_set_connect_watch(client, connect_handler, client);
+	g_dbus_client_set_disconnect_watch(client, disconnect_handler, NULL);
+
+	g_main_loop_run(main_loop);
+
+	g_dbus_client_unref(client);
+
+	g_source_remove(signal);
+
+	dbus_connection_unref(dbus_conn);
+	g_main_loop_unref(main_loop);
+
+	return 0;
+}