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// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* OBEX Server
*
* Copyright (C) 2007-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <glib.h>
#include "obex.h"
#include "service.h"
#include "log.h"
static GSList *drivers = NULL;
struct obex_service_driver *obex_service_driver_find(GSList *drivers,
const uint8_t *target, unsigned int target_size,
const uint8_t *who, unsigned int who_size)
{
GSList *l;
for (l = drivers; l; l = l->next) {
struct obex_service_driver *driver = l->data;
/* who is optional, so only check for it if not NULL */
if (who != NULL && memncmp0(who, who_size, driver->who,
driver->who_size))
continue;
if (memncmp0(target, target_size, driver->target,
driver->target_size) == 0)
return driver;
}
return NULL;
}
GSList *obex_service_driver_list(uint16_t services)
{
GSList *l;
GSList *list = NULL;
if (services == 0)
return drivers;
for (l = drivers; l && services; l = l->next) {
struct obex_service_driver *driver = l->data;
if (driver->service & services) {
list = g_slist_append(list, driver);
services &= ~driver->service;
}
}
return list;
}
static struct obex_service_driver *find_driver(uint16_t service)
{
GSList *l;
for (l = drivers; l; l = l->next) {
struct obex_service_driver *driver = l->data;
if (driver->service == service)
return driver;
}
return NULL;
}
int obex_service_driver_register(struct obex_service_driver *driver)
{
if (!driver) {
error("Invalid driver");
return -EINVAL;
}
if (find_driver(driver->service)) {
error("Permission denied: service %s already registered",
driver->name);
return -EPERM;
}
DBG("driver %p service %s registered", driver, driver->name);
/* Drivers that support who has priority */
if (driver->who)
drivers = g_slist_prepend(drivers, driver);
else
drivers = g_slist_append(drivers, driver);
return 0;
}
void obex_service_driver_unregister(struct obex_service_driver *driver)
{
if (!g_slist_find(drivers, driver)) {
error("Unable to unregister: No such driver %p", driver);
return;
}
DBG("driver %p service %s unregistered", driver, driver->name);
drivers = g_slist_remove(drivers, driver);
}
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