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 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 } 113 114 static int32_t 115 lan_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 } 137 138 static int32_t 139 lan_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 } 150 151 static 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 }; 170 171 profile_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