1 /*- 2 * lan.c 3 * 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5 * 6 * Copyright (c) 2004 Maksim Yevmenkin <m_evmenkin@yahoo.com> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $Id: lan.c,v 1.5 2004/01/13 01:54:39 max Exp $ 31 * $FreeBSD$ 32 */ 33 34 #include <arpa/inet.h> 35 #include <sys/queue.h> 36 #define L2CAP_SOCKET_CHECKED 37 #include <bluetooth.h> 38 #include <sdp.h> 39 #include <stdio.h> 40 #include <string.h> 41 #include "profile.h" 42 #include "provider.h" 43 44 static int32_t 45 lan_profile_create_service_class_id_list( 46 uint8_t *buf, uint8_t const * const eob, 47 uint8_t const *data, uint32_t datalen) 48 { 49 static uint16_t service_classes[] = { 50 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP 51 }; 52 53 return (common_profile_create_service_class_id_list( 54 buf, eob, 55 (uint8_t const *) service_classes, 56 sizeof(service_classes))); 57 } 58 59 static int32_t 60 lan_profile_create_bluetooth_profile_descriptor_list( 61 uint8_t *buf, uint8_t const * const eob, 62 uint8_t const *data, uint32_t datalen) 63 { 64 static uint16_t profile_descriptor_list[] = { 65 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP, 66 0x0100 67 }; 68 69 return (common_profile_create_bluetooth_profile_descriptor_list( 70 buf, eob, 71 (uint8_t const *) profile_descriptor_list, 72 sizeof(profile_descriptor_list))); 73 } 74 75 static int32_t 76 lan_profile_create_service_name( 77 uint8_t *buf, uint8_t const * const eob, 78 uint8_t const *data, uint32_t datalen) 79 { 80 static char service_name[] = "LAN Access using PPP"; 81 82 return (common_profile_create_string8( 83 buf, eob, 84 (uint8_t const *) service_name, strlen(service_name))); 85 } 86 87 static int32_t 88 lan_profile_create_protocol_descriptor_list( 89 uint8_t *buf, uint8_t const * const eob, 90 uint8_t const *data, uint32_t datalen) 91 { 92 provider_p provider = (provider_p) data; 93 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 94 95 return (rfcomm_profile_create_protocol_descriptor_list( 96 buf, eob, 97 (uint8_t const *) &lan->server_channel, 1)); 98 } 99 100 static int32_t 101 lan_profile_create_service_availability( 102 uint8_t *buf, uint8_t const * const eob, 103 uint8_t const *data, uint32_t datalen) 104 { 105 provider_p provider = (provider_p) data; 106 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 107 108 return (common_profile_create_service_availability(buf, eob, 109 &lan->load_factor, 1)); 110 } 111 112 static int32_t 113 lan_profile_create_ip_subnet( 114 uint8_t *buf, uint8_t const * const eob, 115 uint8_t const *data, uint32_t datalen) 116 { 117 provider_p provider = (provider_p) data; 118 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 119 char net[32]; 120 int32_t len; 121 122 len = snprintf(net, sizeof(net), "%s/%d", 123 inet_ntoa(* (struct in_addr *) &lan->ip_subnet), 124 lan->ip_subnet_radius); 125 126 if (len < 0 || buf + 2 + len > eob) 127 return (-1); 128 129 SDP_PUT8(SDP_DATA_STR8, buf); 130 SDP_PUT8(len, buf); 131 memcpy(buf, net, len); 132 133 return (2 + len); 134 } 135 136 static int32_t 137 lan_profile_data_valid(uint8_t const *data, uint32_t datalen) 138 { 139 sdp_lan_profile_p lan = (sdp_lan_profile_p) data; 140 141 if (lan->server_channel < 1 || 142 lan->server_channel > 30 || 143 lan->ip_subnet_radius > 32) 144 return (0); 145 146 return (1); 147 } 148 149 static attr_t lan_profile_attrs[] = { 150 { SDP_ATTR_SERVICE_RECORD_HANDLE, 151 common_profile_create_service_record_handle }, 152 { SDP_ATTR_SERVICE_CLASS_ID_LIST, 153 lan_profile_create_service_class_id_list }, 154 { SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST, 155 lan_profile_create_bluetooth_profile_descriptor_list }, 156 { SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST, 157 common_profile_create_language_base_attribute_id_list }, 158 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET, 159 lan_profile_create_service_name }, 160 { SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST, 161 lan_profile_create_protocol_descriptor_list }, 162 { SDP_ATTR_SERVICE_AVAILABILITY, 163 lan_profile_create_service_availability }, 164 { SDP_ATTR_IP_SUBNET, 165 lan_profile_create_ip_subnet }, 166 { 0, NULL } /* end entry */ 167 }; 168 169 profile_t lan_profile_descriptor = { 170 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP, 171 sizeof(sdp_lan_profile_t), 172 lan_profile_data_valid, 173 (attr_t const * const) &lan_profile_attrs 174 }; 175 176