1 /*- 2 * lan.c 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 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 */ 32 33 #include <arpa/inet.h> 34 #include <sys/queue.h> 35 #define L2CAP_SOCKET_CHECKED 36 #include <bluetooth.h> 37 #include <sdp.h> 38 #include <stdio.h> 39 #include <string.h> 40 #include "profile.h" 41 #include "provider.h" 42 43 static int32_t 44 lan_profile_create_service_class_id_list( 45 uint8_t *buf, uint8_t const * const eob, 46 uint8_t const *data, uint32_t datalen) 47 { 48 static uint16_t service_classes[] = { 49 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP 50 }; 51 52 return (common_profile_create_service_class_id_list( 53 buf, eob, 54 (uint8_t const *) service_classes, 55 sizeof(service_classes))); 56 } 57 58 static int32_t 59 lan_profile_create_bluetooth_profile_descriptor_list( 60 uint8_t *buf, uint8_t const * const eob, 61 uint8_t const *data, uint32_t datalen) 62 { 63 static uint16_t profile_descriptor_list[] = { 64 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP, 65 0x0100 66 }; 67 68 return (common_profile_create_bluetooth_profile_descriptor_list( 69 buf, eob, 70 (uint8_t const *) profile_descriptor_list, 71 sizeof(profile_descriptor_list))); 72 } 73 74 static int32_t 75 lan_profile_create_service_name( 76 uint8_t *buf, uint8_t const * const eob, 77 uint8_t const *data, uint32_t datalen) 78 { 79 static char service_name[] = "LAN Access using PPP"; 80 81 return (common_profile_create_string8( 82 buf, eob, 83 (uint8_t const *) service_name, strlen(service_name))); 84 } 85 86 static int32_t 87 lan_profile_create_protocol_descriptor_list( 88 uint8_t *buf, uint8_t const * const eob, 89 uint8_t const *data, uint32_t datalen) 90 { 91 provider_p provider = (provider_p) data; 92 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 93 94 return (rfcomm_profile_create_protocol_descriptor_list( 95 buf, eob, 96 (uint8_t const *) &lan->server_channel, 1)); 97 } 98 99 static int32_t 100 lan_profile_create_service_availability( 101 uint8_t *buf, uint8_t const * const eob, 102 uint8_t const *data, uint32_t datalen) 103 { 104 provider_p provider = (provider_p) data; 105 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 106 107 return (common_profile_create_service_availability(buf, eob, 108 &lan->load_factor, 1)); 109 } 110 111 static int32_t 112 lan_profile_create_ip_subnet( 113 uint8_t *buf, uint8_t const * const eob, 114 uint8_t const *data, uint32_t datalen) 115 { 116 provider_p provider = (provider_p) data; 117 sdp_lan_profile_p lan = (sdp_lan_profile_p) provider->data; 118 char net[32]; 119 int32_t len; 120 121 len = snprintf(net, sizeof(net), "%s/%d", 122 inet_ntoa(* (struct in_addr *) &lan->ip_subnet), 123 lan->ip_subnet_radius); 124 125 if (len < 0 || buf + 2 + len > eob) 126 return (-1); 127 128 SDP_PUT8(SDP_DATA_STR8, buf); 129 SDP_PUT8(len, buf); 130 memcpy(buf, net, len); 131 132 return (2 + len); 133 } 134 135 static int32_t 136 lan_profile_data_valid(uint8_t const *data, uint32_t datalen) 137 { 138 sdp_lan_profile_p lan = (sdp_lan_profile_p) data; 139 140 if (lan->server_channel < 1 || 141 lan->server_channel > 30 || 142 lan->ip_subnet_radius > 32) 143 return (0); 144 145 return (1); 146 } 147 148 static attr_t lan_profile_attrs[] = { 149 { SDP_ATTR_SERVICE_RECORD_HANDLE, 150 common_profile_create_service_record_handle }, 151 { SDP_ATTR_SERVICE_CLASS_ID_LIST, 152 lan_profile_create_service_class_id_list }, 153 { SDP_ATTR_BLUETOOTH_PROFILE_DESCRIPTOR_LIST, 154 lan_profile_create_bluetooth_profile_descriptor_list }, 155 { SDP_ATTR_LANGUAGE_BASE_ATTRIBUTE_ID_LIST, 156 common_profile_create_language_base_attribute_id_list }, 157 { SDP_ATTR_PRIMARY_LANGUAGE_BASE_ID + SDP_ATTR_SERVICE_NAME_OFFSET, 158 lan_profile_create_service_name }, 159 { SDP_ATTR_PROTOCOL_DESCRIPTOR_LIST, 160 lan_profile_create_protocol_descriptor_list }, 161 { SDP_ATTR_SERVICE_AVAILABILITY, 162 lan_profile_create_service_availability }, 163 { SDP_ATTR_IP_SUBNET, 164 lan_profile_create_ip_subnet }, 165 { 0, NULL } /* end entry */ 166 }; 167 168 profile_t lan_profile_descriptor = { 169 SDP_SERVICE_CLASS_LAN_ACCESS_USING_PPP, 170 sizeof(sdp_lan_profile_t), 171 lan_profile_data_valid, 172 (attr_t const * const) &lan_profile_attrs 173 }; 174 175