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 #define L2CAP_SOCKET_CHECKED 35 #include <bluetooth.h> 36 #include <sdp.h> 37 #include <stdio.h> 38 #include <string.h> 39 #include "profile.h" 40 #include "provider.h" 41 42 static int32_t 43 lan_profile_create_service_class_id_list( 44 uint8_t *buf, uint8_t const * const eob, 45 uint8_t const *data, uint32_t datalen) 46 { 47 static uint16_t service_classes[] = { 48 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP 49 }; 50 51 return (common_profile_create_service_class_id_list( 52 buf, eob, 53 (uint8_t const *) service_classes, 54 sizeof(service_classes))); 55 } 56 57 static int32_t 58 lan_profile_create_bluetooth_profile_descriptor_list( 59 uint8_t *buf, uint8_t const * const eob, 60 uint8_t const *data, uint32_t datalen) 61 { 62 static uint16_t profile_descriptor_list[] = { 63 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP, 64 0x0100 65 }; 66 67 return (common_profile_create_bluetooth_profile_descriptor_list( 68 buf, eob, 69 (uint8_t const *) profile_descriptor_list, 70 sizeof(profile_descriptor_list))); 71 } 72 73 static int32_t 74 lan_profile_create_service_name( 75 uint8_t *buf, uint8_t const * const eob, 76 uint8_t const *data, uint32_t datalen) 77 { 78 static char service_name[] = "LAN Access using PPP"; 79 80 return (common_profile_create_string8( 81 buf, eob, 82 (uint8_t const *) service_name, strlen(service_name))); 83 } 84 85 static int32_t 86 lan_profile_create_protocol_descriptor_list( 87 uint8_t *buf, uint8_t const * const eob, 88 uint8_t const *data, uint32_t datalen) 89 { 90 provider_p provider = (provider_p) data; 91 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 92 93 return (rfcomm_profile_create_protocol_descriptor_list( 94 buf, eob, 95 (uint8_t const *) &lan->server_channel, 1)); 96 } 97 98 static int32_t 99 lan_profile_create_service_availability( 100 uint8_t *buf, uint8_t const * const eob, 101 uint8_t const *data, uint32_t datalen) 102 { 103 provider_p provider = (provider_p) data; 104 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 105 106 return (common_profile_create_service_availability(buf, eob, 107 &lan->load_factor, 1)); 108 } 109 110 static int32_t 111 lan_profile_create_ip_subnet( 112 uint8_t *buf, uint8_t const * const eob, 113 uint8_t const *data, uint32_t datalen) 114 { 115 provider_p provider = (provider_p) data; 116 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 117 char net[32]; 118 int32_t len; 119 120 len = snprintf(net, sizeof(net), "%s/%d", 121 inet_ntoa(* (struct in_addr *) &lan->ip_subnet), 122 lan->ip_subnet_radius); 123 124 if (len < 0 || buf + 2 + len > eob) 125 return (-1); 126 127 SDP_PUT8(SDP_DATA_STR8, buf); 128 SDP_PUT8(len, buf); 129 memcpy(buf, net, len); 130 131 return (2 + len); 132 } 133 134 static int32_t 135 lan_profile_data_valid(uint8_t const *data, uint32_t datalen) 136 { 137 sdp_lan_profile_p lan = (sdp_lan_profile_p) data; 138 139 if (lan->server_channel < 1 || 140 lan->server_channel > 30 || 141 lan->ip_subnet_radius > 32) 142 return (0); 143 144 return (1); 145 } 146 147 static attr_t lan_profile_attrs[] = { 148 { SDP_ATTR_SERVICE_RECORD_HANDLE, 149 common_profile_create_service_record_handle }, 150 { SDP_ATTR_SERVICE_CLASS_ID_LIST, 151 lan_profile_create_service_class_id_list }, 152 { SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST, 153 lan_profile_create_bluetooth_profile_descriptor_list }, 154 { SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST, 155 common_profile_create_language_base_attribute_id_list }, 156 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET, 157 lan_profile_create_service_name }, 158 { SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST, 159 lan_profile_create_protocol_descriptor_list }, 160 { SDP_ATTR_SERVICE_AVAILABILITY, 161 lan_profile_create_service_availability }, 162 { SDP_ATTR_IP_SUBNET, 163 lan_profile_create_ip_subnet }, 164 { 0, NULL } /* end entry */ 165 }; 166 167 profile_t lan_profile_descriptor = { 168 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP, 169 sizeof(sdp_lan_profile_t), 170 lan_profile_data_valid, 171 (attr_t const * const) &lan_profile_attrs 172 }; 173 174