xref: /freebsd/usr.sbin/bluetooth/sdpd/sur.c (revision 685dc743dc3b5645e34836464128e1c0558b404b)
1 /*-
2  * sur.c
3  *
4  * SPDX-License-Identifier: BSD-2-Clause
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  */
32 
33 #include <sys/queue.h>
34 #define L2CAP_SOCKET_CHECKED
35 #include <bluetooth.h>
36 #include <errno.h>
37 #include <sdp.h>
38 #include <string.h>
39 #include "profile.h"
40 #include "provider.h"
41 #include "server.h"
42 
43 /*
44  * Prepare Service Unregister response
45  */
46 
47 int32_t
48 server_prepare_service_unregister_response(server_p srv, int32_t fd)
49 {
50 	uint8_t const	*req = srv->req + sizeof(sdp_pdu_t);
51 	uint8_t const	*req_end = req + ((sdp_pdu_p)(srv->req))->len;
52 	uint8_t		*rsp = srv->fdidx[fd].rsp;
53 
54 	provider_t	*provider = NULL;
55 	uint32_t	 handle;
56 
57 	/*
58 	 * Minimal Service Unregister Request
59 	 *
60 	 * value32	- uuid 4 bytes
61 	 */
62 
63 	if (!srv->fdidx[fd].control ||
64 	    !srv->fdidx[fd].priv || req_end - req < 4)
65 		return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
66 
67 	/* Get handle */
68 	SDP_GET32(handle, req);
69 
70 	/* Lookup provider */
71 	provider = provider_by_handle(handle);
72 	if (provider == NULL || provider->fd != fd)
73 		return (SDP_ERROR_CODE_INVALID_SERVICE_RECORD_HANDLE);
74 
75 	provider_unregister(provider);
76 	SDP_PUT16(0, rsp);
77 
78 	/* Set reply size */
79 	srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t);
80 	srv->fdidx[fd].rsp_size = rsp - srv->fdidx[fd].rsp;
81 	srv->fdidx[fd].rsp_cs = 0;
82 
83 	return (0);
84 }
85 
86