xref: /freebsd/usr.sbin/bluetooth/sdpd/lan.c (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
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  * $FreeBSD$
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 
41 static int32_t
42 lan_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 
56 static int32_t
57 lan_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 
72 static int32_t
73 lan_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 
84 static int32_t
85 lan_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 
97 static int32_t
98 lan_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 	return (common_profile_create_service_availability(buf, eob,
106 			&lan->load_factor, 1));
107 }
108 
109 static int32_t
110 lan_profile_create_ip_subnet(
111 		uint8_t *buf, uint8_t const * const eob,
112 		uint8_t const *data, uint32_t datalen)
113 {
114 	provider_p		provider = (provider_p) data;
115 	sdp_lan_profile_p	lan = (sdp_lan_profile_p) provider->data;
116 	char			net[32];
117 	int32_t			len;
118 
119 	len = snprintf(net, sizeof(net), "%s/%d",
120 			inet_ntoa(* (struct in_addr *) &lan->ip_subnet),
121 			lan->ip_subnet_radius);
122 
123 	if (len < 0 || buf + 2 + len > eob)
124 		return (-1);
125 
126 	SDP_PUT8(SDP_DATA_STR8, buf);
127 	SDP_PUT8(len, buf);
128 	memcpy(buf, net, len);
129 
130 	return (2 + len);
131 }
132 
133 static int32_t
134 lan_profile_data_valid(uint8_t const *data, uint32_t datalen)
135 {
136 	sdp_lan_profile_p	lan = (sdp_lan_profile_p) data;
137 
138 	if (lan->server_channel < 1 ||
139 	    lan->server_channel > 30 ||
140 	    lan->ip_subnet_radius > 32)
141 		return (0);
142 
143 	return (1);
144 }
145 
146 static attr_t	lan_profile_attrs[] = {
147 	{ SDP_ATTR_SERVICE_RECORD_HANDLE,
148 	  common_profile_create_service_record_handle },
149 	{ SDP_ATTR_SERVICE_CLASS_ID_LIST,
150 	  lan_profile_create_service_class_id_list },
151 	{ SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST,
152 	  lan_profile_create_bluetooth_profile_descriptor_list },
153 	{ SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST,
154 	  common_profile_create_language_base_attribute_id_list },
155 	{ SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET,
156 	  lan_profile_create_service_name },
157 	{ SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST,
158 	  lan_profile_create_protocol_descriptor_list },
159 	{ SDP_ATTR_SERVICE_AVAILABILITY,
160 	  lan_profile_create_service_availability },
161 	{ SDP_ATTR_IP_SUBNET,
162 	  lan_profile_create_ip_subnet },
163 	{ 0, NULL } /* end entry */
164 };
165 
166 profile_t	lan_profile_descriptor = {
167 	SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP,
168 	sizeof(sdp_lan_profile_t),
169 	lan_profile_data_valid,
170 	(attr_t const * const) &lan_profile_attrs
171 };
172 
173