blob: 44e4d4b673448671e6ecbdc737ddfb87b272f61a [file] [log] [blame]
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2006-2007 Nokia Corporation
* Copyright (C) 2004-2008 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 <errno.h>
#include <stdlib.h>
#include <string.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
#include <bluetooth/sdp.h>
#include <bluetooth/sdp_lib.h>
#include <glib.h>
#include <dbus/dbus.h>
#include "dbus.h"
#include "dbus-helper.h"
#include "hcid.h"
#include "sdpd.h"
#include "sdp-xml.h"
#include "manager.h"
#include "adapter.h"
#include "dbus-hci.h"
#include "dbus-common.h"
#include "dbus-error.h"
#include "error.h"
#include "dbus-service.h"
#include "dbus-security.h"
#include "dbus-database.h"
static int sdp_server_enable = 0;
static GSList *records = NULL;
struct record_data {
uint32_t handle;
char *sender;
};
static struct record_data *find_record(uint32_t handle, const char *sender)
{
GSList *list;
for (list = records; list; list = list->next) {
struct record_data *data = list->data;
if (handle == data->handle && !strcmp(sender, data->sender))
return data;
}
return NULL;
}
static void exit_callback(const char *name, void *user_data)
{
struct record_data *user_record = user_data;
records = g_slist_remove(records, user_record);
if (sdp_server_enable)
remove_record_from_server(user_record->handle);
else
unregister_sdp_record(user_record->handle);
if (user_record->sender)
g_free(user_record->sender);
g_free(user_record);
}
static DBusHandlerResult add_service_record(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessage *reply;
DBusMessageIter iter, array;
const char *sender;
struct record_data *user_record;
sdp_record_t *sdp_record;
const uint8_t *record;
int scanned, len = -1;
dbus_message_iter_init(msg, &iter);
dbus_message_iter_recurse(&iter, &array);
dbus_message_iter_get_fixed_array(&array, &record, &len);
if (len <= 0)
return error_invalid_arguments(conn, msg, NULL);
user_record = g_new0(struct record_data, 1);
if (sdp_server_enable) {
sdp_record = sdp_extract_pdu(record, &scanned);
if (!sdp_record) {
error("Parsing of service record failed");
g_free(user_record);
return error_failed_errno(conn, msg, EIO);
}
if (scanned != len) {
error("Size mismatch of service record");
g_free(user_record);
sdp_record_free(sdp_record);
return error_failed_errno(conn, msg, EIO);
}
if (add_record_to_server(sdp_record) < 0) {
error("Failed to register service record");
g_free(user_record);
sdp_record_free(sdp_record);
return error_failed_errno(conn, msg, EIO);
}
user_record->handle = sdp_record->handle;
} else {
uint32_t size = len;
if (register_sdp_binary((uint8_t *) record, size,
&user_record->handle) < 0) {
error("Failed to register service record");
g_free(user_record);
return error_failed_errno(conn, msg, errno);
}
}
sender = dbus_message_get_sender(msg);
user_record->sender = g_strdup(sender);
records = g_slist_append(records, user_record);
name_listener_add(conn, sender, exit_callback, user_record);
reply = dbus_message_new_method_return(msg);
if (!reply)
return DBUS_HANDLER_RESULT_NEED_MEMORY;
dbus_message_append_args(reply, DBUS_TYPE_UINT32, &user_record->handle,
DBUS_TYPE_INVALID);
return send_message_and_unref(conn, reply);
}
static DBusHandlerResult add_service_record_from_xml(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessage *reply;
const char *sender, *record;
struct record_data *user_record;
sdp_record_t *sdp_record;
if (dbus_message_get_args(msg, NULL,
DBUS_TYPE_STRING, &record, DBUS_TYPE_INVALID) == FALSE)
return error_invalid_arguments(conn, msg, NULL);
user_record = g_new0(struct record_data, 1);
sdp_record = sdp_xml_parse_record(record, strlen(record));
if (!sdp_record) {
error("Parsing of XML service record failed");
g_free(user_record);
return error_failed_errno(conn, msg, EIO);
}
if (sdp_server_enable) {
if (add_record_to_server(sdp_record) < 0) {
error("Failed to register service record");
g_free(user_record);
sdp_record_free(sdp_record);
return error_failed_errno(conn, msg, EIO);
}
user_record->handle = sdp_record->handle;
} else {
if (register_sdp_record(sdp_record) < 0) {
error("Failed to register service record");
g_free(user_record);
sdp_record_free(sdp_record);
return error_failed_errno(conn, msg, EIO);
}
user_record->handle = sdp_record->handle;
sdp_record_free(sdp_record);
}
sender = dbus_message_get_sender(msg);
user_record->sender = g_strdup(sender);
records = g_slist_append(records, user_record);
name_listener_add(conn, sender, exit_callback, user_record);
reply = dbus_message_new_method_return(msg);
if (!reply)
return DBUS_HANDLER_RESULT_NEED_MEMORY;
dbus_message_append_args(reply, DBUS_TYPE_UINT32, &user_record->handle,
DBUS_TYPE_INVALID);
return send_message_and_unref(conn, reply);
}
static DBusHandlerResult update_record(DBusConnection *conn, DBusMessage *msg,
dbus_uint32_t handle, sdp_record_t *sdp_record)
{
int err;
if (sdp_server_enable) {
if (remove_record_from_server(handle) < 0) {
sdp_record_free(sdp_record);
return error_not_available(conn, msg);
}
sdp_record->handle = handle;
err = add_record_to_server(sdp_record);
if (err < 0) {
sdp_record_free(sdp_record);
error("Failed to update the service record");
return error_failed_errno(conn, msg, EIO);
}
} else {
sdp_data_t *d = sdp_data_alloc(SDP_UINT32, &handle);
sdp_attr_replace(sdp_record, SDP_ATTR_RECORD_HANDLE, d);
err = update_sdp_record(handle, sdp_record);
sdp_record_free(sdp_record);
if (err < 0) {
error("Failed to update the service record");
return error_failed_errno(conn, msg, EIO);
}
}
return send_message_and_unref(conn,
dbus_message_new_method_return(msg));
}
static DBusHandlerResult update_service_record(DBusConnection *conn,
DBusMessage *msg, void *data)
{
struct record_data *user_record;
DBusMessageIter iter, array;
sdp_record_t *sdp_record;
dbus_uint32_t handle;
const uint8_t *bin_record;
int scanned, size = -1;
dbus_message_iter_init(msg, &iter);
dbus_message_iter_get_basic(&iter, &handle);
dbus_message_iter_next(&iter);
dbus_message_iter_recurse(&iter, &array);
dbus_message_iter_get_fixed_array(&array, &bin_record, &size);
if (size <= 0)
return error_invalid_arguments(conn, msg, NULL);
user_record = find_record(handle, dbus_message_get_sender(msg));
if (!user_record)
return error_not_available(conn, msg);
sdp_record = sdp_extract_pdu(bin_record, &scanned);
if (!sdp_record) {
error("Parsing of service record failed");
return error_invalid_arguments(conn, msg, NULL);
}
if (scanned != size) {
error("Size mismatch of service record");
sdp_record_free(sdp_record);
return error_invalid_arguments(conn, msg, NULL);
}
return update_record(conn, msg, handle, sdp_record);
}
static DBusHandlerResult update_service_record_from_xml(DBusConnection *conn,
DBusMessage *msg, void *data)
{
const char *record;
struct record_data *user_record;
sdp_record_t *sdp_record;
dbus_uint32_t handle;
int len;
if (dbus_message_get_args(msg, NULL,
DBUS_TYPE_UINT32, &handle,
DBUS_TYPE_STRING, &record,
DBUS_TYPE_INVALID) == FALSE)
return error_invalid_arguments(conn, msg, NULL);
len = (record ? strlen(record) : 0);
if (len == 0)
return error_invalid_arguments(conn, msg, NULL);
user_record = find_record(handle, dbus_message_get_sender(msg));
if (!user_record)
return error_not_available(conn, msg);
sdp_record = sdp_xml_parse_record(record, len);
if (!sdp_record) {
error("Parsing of XML service record failed");
sdp_record_free(sdp_record);
return error_failed_errno(conn, msg, EIO);
}
return update_record(conn, msg, handle, sdp_record);
}
static DBusHandlerResult remove_service_record(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessage *reply;
dbus_uint32_t handle;
const char *sender;
struct record_data *user_record;
if (dbus_message_get_args(msg, NULL,
DBUS_TYPE_UINT32, &handle, DBUS_TYPE_INVALID) == FALSE)
return error_invalid_arguments(conn, msg, NULL);
sender = dbus_message_get_sender(msg);
user_record = find_record(handle, sender);
if (!user_record)
return error_not_available(conn, msg);
name_listener_remove(conn, sender, exit_callback, user_record);
records = g_slist_remove(records, user_record);
if (sdp_server_enable)
remove_record_from_server(handle);
else
unregister_sdp_record(handle);
if (user_record->sender)
g_free(user_record->sender);
g_free(user_record);
reply = dbus_message_new_method_return(msg);
if (!reply)
return DBUS_HANDLER_RESULT_NEED_MEMORY;
return send_message_and_unref(conn, reply);
}
static DBusHandlerResult register_service(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessage *reply;
const char *sender, *ident, *name, *desc;
if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &ident,
DBUS_TYPE_STRING, &name, DBUS_TYPE_STRING, &desc,
DBUS_TYPE_INVALID) == FALSE)
return error_invalid_arguments(conn, msg, NULL);
sender = dbus_message_get_sender(msg);
if (service_register(conn, sender, ident, name, desc) < 0)
return error_failed_errno(conn, msg, EIO);
reply = dbus_message_new_method_return(msg);
if (!reply)
return DBUS_HANDLER_RESULT_NEED_MEMORY;
return send_message_and_unref(conn, reply);
}
static DBusHandlerResult unregister_service(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessage *reply;
const char *sender, *ident;
struct service *service;
if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &ident,
DBUS_TYPE_INVALID) == FALSE)
return error_invalid_arguments(conn, msg, NULL);
sender = dbus_message_get_sender(msg);
service = search_service(conn, ident);
if (!service)
return error_service_does_not_exist(conn, msg);
if (!service->external || strcmp(sender, service->bus_name))
return error_not_authorized(conn, msg);
if (service_unregister(conn, service) < 0)
return error_failed_errno(conn, msg, EIO);
reply = dbus_message_new_method_return(msg);
if (!reply)
return DBUS_HANDLER_RESULT_NEED_MEMORY;
return send_message_and_unref(conn, reply);
}
static DBusHandlerResult request_authorization(DBusConnection *conn,
DBusMessage *msg, void *data)
{
const char *sender, *address, *path;
struct service *service;
bdaddr_t bdaddr;
gboolean trusted;
int adapter_id;
if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &address,
DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID) == FALSE)
return error_invalid_arguments(conn, msg, NULL);
sender = dbus_message_get_sender(msg);
service = search_service(conn, sender);
if (!service) {
debug("Got RequestAuthorization from non-service owner %s",
sender);
return error_not_authorized(conn, msg);
}
str2ba(address, &bdaddr);
adapter_id = hci_for_each_dev(HCI_UP, find_conn, (long) &bdaddr);
if (adapter_id < 0)
return error_not_connected(conn, msg);
hci_devba(adapter_id, &bdaddr);
trusted = read_trust(&bdaddr, address, GLOBAL_TRUST);
if (!trusted)
trusted = read_trust(BDADDR_ANY, address, service->ident);
if (trusted) {
DBusMessage *reply;
reply = dbus_message_new_method_return(msg);
if (!reply)
return DBUS_HANDLER_RESULT_NEED_MEMORY;
return send_message_and_unref(conn, reply);
}
return handle_authorize_request(conn, msg, service, address, path);
}
static DBusHandlerResult cancel_authorization_request(DBusConnection *conn,
DBusMessage *msg, void *data)
{
const char *sender, *address, *path;
struct service *service;
if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &address,
DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID) == FALSE)
return error_invalid_arguments(conn, msg, NULL);
sender = dbus_message_get_sender(msg);
service = search_service(conn, sender);
if (!service)
return error_not_authorized(conn, msg);
return cancel_authorize_request(conn, msg, service, address, path);
}
static DBusMethodVTable database_methods[] = {
{ "AddServiceRecord", add_service_record, "ay", "u" },
{ "AddServiceRecordFromXML", add_service_record_from_xml, "s", "u" },
{ "UpdateServiceRecord", update_service_record, "uay", "" },
{ "UpdateServiceRecordFromXML", update_service_record_from_xml, "us", "" },
{ "RemoveServiceRecord", remove_service_record, "u", "" },
{ "RegisterService", register_service, "sss", "" },
{ "UnregisterService", unregister_service, "s", "" },
{ "RequestAuthorization", request_authorization, "ss", "" },
{ "CancelAuthorizationRequest", cancel_authorization_request, "ss", "" },
{ NULL, NULL, NULL, NULL }
};
dbus_bool_t database_init(DBusConnection *conn, const char *path)
{
return dbus_connection_register_interface(conn, path,
DATABASE_INTERFACE,
database_methods,
NULL, NULL);
}
DBusHandlerResult database_message(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMethodVTable *current;
for (current = database_methods;
current->name && current->message_function; current++) {
if (!dbus_message_is_method_call(msg, DATABASE_INTERFACE,
current->name))
continue;
if (dbus_message_has_signature(msg, current->signature)) {
debug("%s: %s.%s()", dbus_message_get_path(msg),
DATABASE_INTERFACE, current->name);
return current->message_function(conn, msg, data);
}
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
void set_sdp_server_enable(void)
{
sdp_server_enable = 1;
}