1 /* $NetBSD: srr.c,v 1.1 2006/06/19 15:44:56 gdamore Exp $ */
2 /* $DragonFly: src/usr.sbin/sdpd/srr.c,v 1.1 2008/01/06 21:51:30 hasso Exp $ */
3
4 /*
5 * srr.c
6 *
7 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $Id: srr.c,v 1.2 2007/11/30 07:39:37 griffin Exp $
32 * $FreeBSD: src/usr.sbin/bluetooth/sdpd/srr.c,v 1.2 2005/12/06 17:56:36 emax Exp $
33 */
34
35 #include <sys/queue.h>
36 #include <sys/uio.h>
37 #include <netinet/in.h>
38 #include <arpa/inet.h>
39 #include <assert.h>
40 #include <bluetooth.h>
41 #include <errno.h>
42 #include <sdp.h>
43 #include <string.h>
44 #include "profile.h"
45 #include "provider.h"
46 #include "server.h"
47
48 /*
49 * Prepare Service Register response
50 */
51
52 int32_t
server_prepare_service_register_response(server_p srv,int32_t fd)53 server_prepare_service_register_response(server_p srv, int32_t fd)
54 {
55 uint8_t const *req = srv->req + sizeof(sdp_pdu_t);
56 uint8_t const *req_end = req + ((sdp_pdu_p)(srv->req))->len;
57 uint8_t *rsp = srv->fdidx[fd].rsp;
58
59 profile_t *profile = NULL;
60 provider_t *provider = NULL;
61 bdaddr_t const *bdaddr = NULL;
62 int32_t uuid;
63
64 /*
65 * Minimal Service Register Request
66 *
67 * value16 - uuid 2 bytes
68 * bdaddr - BD_ADDR 6 bytes
69 */
70
71 if (!srv->fdidx[fd].control ||
72 !srv->fdidx[fd].priv || req_end - req < 8)
73 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
74
75 /* Get ServiceClass UUID */
76 SDP_GET16(uuid, req);
77
78 /* Get BD_ADDR */
79 bdaddr = (bdaddr_t const *) req;
80 req += sizeof(*bdaddr);
81
82 /* Lookup profile descriptror */
83 profile = profile_get_descriptor(uuid);
84 if (profile == NULL)
85 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
86
87 /* Validate user data */
88 if (req_end - req < profile->dsize ||
89 profile->valid == NULL ||
90 (profile->valid)(req, req_end - req) == 0)
91 return (SDP_ERROR_CODE_INVALID_REQUEST_SYNTAX);
92
93 /* Register provider */
94 provider = provider_register(profile, bdaddr, fd, req, req_end - req);
95 if (provider == NULL)
96 return (SDP_ERROR_CODE_INSUFFICIENT_RESOURCES);
97
98 SDP_PUT16(0, rsp);
99 SDP_PUT32(provider->handle, rsp);
100
101 /* Set reply size */
102 srv->fdidx[fd].rsp_limit = srv->fdidx[fd].omtu - sizeof(sdp_pdu_t);
103 srv->fdidx[fd].rsp_size = rsp - srv->fdidx[fd].rsp;
104 srv->fdidx[fd].rsp_cs = 0;
105
106 return (0);
107 }
108
109 /*
110 * Send Service Register Response
111 */
112
113 int32_t
server_send_service_register_response(server_p srv,int32_t fd)114 server_send_service_register_response(server_p srv, int32_t fd)
115 {
116 struct iovec iov[2];
117 sdp_pdu_t pdu;
118 int32_t size;
119
120 assert(srv->fdidx[fd].rsp_size < srv->fdidx[fd].rsp_limit);
121
122 pdu.pid = SDP_PDU_ERROR_RESPONSE;
123 pdu.tid = ((sdp_pdu_p)(srv->req))->tid;
124 pdu.len = htons(srv->fdidx[fd].rsp_size);
125
126 iov[0].iov_base = &pdu;
127 iov[0].iov_len = sizeof(pdu);
128
129 iov[1].iov_base = srv->fdidx[fd].rsp;
130 iov[1].iov_len = srv->fdidx[fd].rsp_size;
131
132 do {
133 size = writev(fd, (struct iovec const *) &iov, sizeof(iov)/sizeof(iov[0]));
134 } while (size < 0 && errno == EINTR);
135
136 srv->fdidx[fd].rsp_cs = 0;
137 srv->fdidx[fd].rsp_size = 0;
138 srv->fdidx[fd].rsp_limit = 0;
139
140 return ((size < 0)? errno : 0);
141 }
142