1/*-
2 * sur.c
3 *
4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 *
6 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $Id: sur.c,v 1.1 2004/01/13 01:54:39 max Exp $
31 * $FreeBSD: stable/11/usr.sbin/bluetooth/sdpd/sur.c 330449 2018-03-05 07:26:05Z eadler $
32 */
33
34#include <sys/queue.h>
35#define L2CAP_SOCKET_CHECKED
36#include <bluetooth.h>
37#include <errno.h>
38#include <sdp.h>
39#include <string.h>
40#include "profile.h"
41#include "provider.h"
42#include "server.h"
43
44/*
45 * Prepare Service Unregister response
46 */
47
48int32_t
49server_prepare_service_unregister_response(server_p srv, int32_t fd)
50{
51	uint8_t const	*req = srv->req + sizeof(sdp_pdu_t);
52	uint8_t const	*req_end = req + ((sdp_pdu_p)(srv->req))->len;
53	uint8_t		*rsp = srv->fdidx[fd].rsp;
54
55	provider_t	*provider = NULL;
56	uint32_t	 handle;
57
58	/*
59	 * Minimal Service Unregister Request
60	 *
61	 * value32	- uuid 4 bytes
62	 */
63
64	if (!srv->fdidx[fd].control ||
65	    !srv->fdidx[fd].priv || req_end - req < 4)
66		return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
67
68	/* Get handle */
69	SDP_GET32(handle, req);
70
71	/* Lookup provider */
72	provider = provider_by_handle(handle);
73	if (provider == NULL || provider->fd != fd)
74		return (SDP_ERROR_CODE_INVALID_SERVICE_RECORD_HANDLE);
75
76	provider_unregister(provider);
77	SDP_PUT16(0, rsp);
78
79	/* Set reply size */
80	srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t);
81	srv->fdidx[fd].rsp_size = rsp - srv->fdidx[fd].rsp;
82	srv->fdidx[fd].rsp_cs = 0;
83
84	return (0);
85}
86
87