lan.c revision 124758 
1/*
2 * lan.c
3 *
4 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $Id: lan.c,v 1.5 2004/01/13 01:54:39 max Exp $
29 * $FreeBSD: head/usr.sbin/bluetooth/sdpd/lan.c 124758 2004-01-20 20:48:26Z emax $
30 */
31
32#include <arpa/inet.h>
33#include <sys/queue.h>
34#include <bluetooth.h>
35#include <sdp.h>
36#include <stdio.h>
37#include <string.h>
38#include "profile.h"
39#include "provider.h"
40
41static int32_t
42lan_profile_create_service_class_id_list(
43		uint8_t *buf, uint8_t const * const eob,
44		uint8_t const *data, uint32_t datalen)
45{
46	static uint16_t	service_classes[] = {
47		SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP
48	};
49
50	return (common_profile_create_service_class_id_list(
51			buf, eob,
52			(uint8_t const *) service_classes,
53			sizeof(service_classes)));
54}
55
56static int32_t
57lan_profile_create_bluetooth_profile_descriptor_list(
58		uint8_t *buf, uint8_t const * const eob,
59		uint8_t const *data, uint32_t datalen)
60{
61	static uint16_t	profile_descriptor_list[] = {
62		SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP,
63		0x0100
64	};
65
66	return (common_profile_create_bluetooth_profile_descriptor_list(
67			buf, eob,
68			(uint8_t const *) profile_descriptor_list,
69			sizeof(profile_descriptor_list)));
70}
71
72static int32_t
73lan_profile_create_service_name(
74		uint8_t *buf, uint8_t const * const eob,
75		uint8_t const *data, uint32_t datalen)
76{
77	static char	service_name[] = "LAN Access using PPP";
78
79	return (common_profile_create_string8(
80			buf, eob,
81			(uint8_t const *) service_name, strlen(service_name)));
82}
83
84static int32_t
85lan_profile_create_protocol_descriptor_list(
86		uint8_t *buf, uint8_t const * const eob,
87		uint8_t const *data, uint32_t datalen)
88{
89	provider_p		provider = (provider_p) data;
90	sdp_lan_profile_p	lan = (sdp_lan_profile_p) provider->data;
91
92	return (rfcomm_profile_create_protocol_descriptor_list(
93			buf, eob,
94			(uint8_t const *) &lan->server_channel, 1));
95}
96
97static int32_t
98lan_profile_create_service_availability(
99		uint8_t *buf, uint8_t const * const eob,
100		uint8_t const *data, uint32_t datalen)
101{
102	provider_p		provider = (provider_p) data;
103	sdp_lan_profile_p	lan = (sdp_lan_profile_p) provider->data;
104
105	if (buf + 2 > eob)
106		return (-1);
107
108	SDP_PUT8(SDP_DATA_UINT8, buf);
109	SDP_PUT8(lan->load_factor, buf);
110
111	return (2);
112}
113
114static int32_t
115lan_profile_create_ip_subnet(
116		uint8_t *buf, uint8_t const * const eob,
117		uint8_t const *data, uint32_t datalen)
118{
119	provider_p		provider = (provider_p) data;
120	sdp_lan_profile_p	lan = (sdp_lan_profile_p) provider->data;
121	char			net[32];
122	int32_t			len;
123
124	len = snprintf(net, sizeof(net), "%s/%d",
125			inet_ntoa(* (struct in_addr *) &lan->ip_subnet),
126			lan->ip_subnet_radius);
127
128	if (len < 0 || buf + 2 + len > eob)
129		return (-1);
130
131	SDP_PUT8(SDP_DATA_STR8, buf);
132	SDP_PUT8(len, buf);
133	memcpy(buf, net, len);
134
135	return (2 + len);
136}
137
138static int32_t
139lan_profile_data_valid(uint8_t const *data, uint32_t datalen)
140{
141	sdp_lan_profile_p	lan = (sdp_lan_profile_p) data;
142
143	if (lan->server_channel < 1 ||
144	    lan->server_channel > 30 ||
145	    lan->ip_subnet_radius > 32)
146		return (0);
147
148	return (1);
149}
150
151static attr_t	lan_profile_attrs[] = {
152	{ SDP_ATTR_SERVICE_RECORD_HANDLE,
153	  common_profile_create_service_record_handle },
154	{ SDP_ATTR_SERVICE_CLASS_ID_LIST,
155	  lan_profile_create_service_class_id_list },
156	{ SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST,
157	  lan_profile_create_bluetooth_profile_descriptor_list },
158	{ SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST,
159	  common_profile_create_language_base_attribute_id_list },
160	{ SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET,
161	  lan_profile_create_service_name },
162	{ SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST,
163	  lan_profile_create_protocol_descriptor_list },
164	{ SDP_ATTR_SERVICE_AVAILABILITY,
165	  lan_profile_create_service_availability },
166	{ SDP_ATTR_IP_SUBNET,
167	  lan_profile_create_ip_subnet },
168	{ 0, NULL } /* end entry */
169};
170
171profile_t	lan_profile_descriptor = {
172	SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP,
173	sizeof(sdp_lan_profile_t),
174	lan_profile_data_valid,
175	(attr_t const * const) &lan_profile_attrs
176};
177
178