1 | /*
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2 | * Copyright (C) 2014 by BlueKitchen GmbH
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3 | *
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4 | * Redistribution and use in source and binary forms, with or without
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5 | * modification, are permitted provided that the following conditions
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6 | * are met:
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7 | *
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the copyright holders nor the names of
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14 | * contributors may be used to endorse or promote products derived
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15 | * from this software without specific prior written permission.
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16 | * 4. Any redistribution, use, or modification is done solely for
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17 | * personal benefit and not for any commercial purpose or for
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18 | * monetary gain.
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19 | *
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20 | * THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD AND CONTRIBUTORS
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21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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23 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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24 | * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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25 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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26 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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27 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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28 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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29 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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30 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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31 | * SUCH DAMAGE.
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32 | *
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33 | * Please inquire about commercial licensing options at btstack@ringwald.ch
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34 | *
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35 | */
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36 |
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37 | /*
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38 | * pan.h
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39 | *
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40 | * Created by Milanka Ringwald on 10/16/14.
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41 | */
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42 |
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43 | #include "pan.h"
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44 |
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45 | #include <stdio.h>
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46 | #include <string.h>
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47 |
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48 | #include <btstack/sdp_util.h>
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49 |
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50 | static const char default_panu_service_name[] = "Personal Ad-hoc User Service";
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51 | static const char default_panu_service_desc[] = "Personal Ad-hoc User Service";
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52 |
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53 | static const char default_nap_service_name[] = "Network Access Point Service";
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54 | static const char default_nap_service_desc[] = "Personal Ad-hoc Network Service which provides access to a network";
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55 |
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56 | static const char default_gn_service_name[] = "Group Ad-hoc Network Service";
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57 | static const char default_gn_service_desc[] = "Personal Group Ad-hoc Network Service";
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58 |
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59 | #define NETWORK_TYPE_IPv4 0x0800
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60 | #define NETWORK_TYPE_ARP 0x0806
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61 | #define NETWORK_TYPE_IPv6 0x86DD
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62 |
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63 | #define IP_PROTOCOL_ICMP_IPv4 0x0001
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64 | #define IP_PROTOCOL_ICMP_IPv6 0x003a
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65 | #define IP_PROTOCOL_UDP 0x0011
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66 |
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67 | static uint16_t network_packet_types_table[] = { NETWORK_TYPE_IPv4, NETWORK_TYPE_ARP, 0}; // 0 as end of list
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68 |
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69 | void pan_create_service(bnep_service_uuid_t service_uuid, uint8_t *service, const char *name, const char *descriptor,
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70 | security_description_t security_desc, net_access_type_t net_access_type, uint32_t max_net_access_rate,
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71 | const char *IPv4Subnet, const char *IPv6Subnet){
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72 |
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73 | uint8_t* attribute;
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74 | uint16_t *network_packet_types = network_packet_types_table;
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75 | de_create_sequence(service);
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76 |
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77 | // 0x0000 "Service Record Handle"
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78 | de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ServiceRecordHandle);
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79 | de_add_number(service, DE_UINT, DE_SIZE_32, 0x10001);
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80 |
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81 | // 0x0001 "Service Class ID List"
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82 | de_add_number(service, DE_UINT, DE_SIZE_16, BLUETOOTH_ATTRIBUTE_SERVICE_CLASS_ID_LIST);
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83 | attribute = de_push_sequence(service);
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84 | {
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85 | // "UUID for PAN Service"
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86 | de_add_number(attribute, DE_UUID, DE_SIZE_32, service_uuid);
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87 | }
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88 | de_pop_sequence(service, attribute);
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89 |
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90 | // 0x0004 "Protocol Descriptor List"
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91 | de_add_number(service, DE_UINT, DE_SIZE_16, BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST);
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92 | attribute = de_push_sequence(service);
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93 | {
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94 | uint8_t* l2cpProtocol = de_push_sequence(attribute);
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95 | {
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96 | de_add_number(l2cpProtocol, DE_UUID, DE_SIZE_16, 0x0100);
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97 | de_add_number(l2cpProtocol, DE_UINT, DE_SIZE_16, BLUETOOTH_PROTOCOL_BNEP); // l2cap psm
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98 | }
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99 | de_pop_sequence(attribute, l2cpProtocol);
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100 |
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101 | uint8_t* bnep = de_push_sequence(attribute);
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102 | {
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103 | de_add_number(bnep, DE_UUID, DE_SIZE_16, 0x000F); // bnep
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104 | de_add_number(bnep, DE_UINT, DE_SIZE_16, 0x0100); // version
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105 |
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106 | uint8_t * net_packet_type_list = de_push_sequence(bnep);
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107 | {
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108 | if (network_packet_types){
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109 | while (*network_packet_types){
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110 | de_add_number(net_packet_type_list, DE_UINT, DE_SIZE_16, *network_packet_types++);
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111 | }
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112 | }
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113 | }
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114 | de_pop_sequence(bnep, net_packet_type_list);
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115 | }
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116 | de_pop_sequence(attribute, bnep);
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117 | }
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118 | de_pop_sequence(service, attribute);
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119 |
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120 | // 0x0005 "Public Browse Group"
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121 | de_add_number(service, DE_UINT, DE_SIZE_16, SDP_BrowseGroupList); // public browse group
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122 | attribute = de_push_sequence(service);
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123 | {
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124 | de_add_number(attribute, DE_UUID, DE_SIZE_16, 0x1002 );
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125 | }
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126 | de_pop_sequence(service, attribute);
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127 |
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128 | // 0x0006 "LanguageBaseAttributeIDList"
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129 | de_add_number(service, DE_UINT, DE_SIZE_16, SDP_LanguageBaseAttributeIDList);
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130 | attribute = de_push_sequence(service);
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131 | {
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132 | de_add_number(attribute, DE_UINT, DE_SIZE_16, 0x656e);
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133 | de_add_number(attribute, DE_UINT, DE_SIZE_16, 0x006a);
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134 | de_add_number(attribute, DE_UINT, DE_SIZE_16, 0x0100); // Base for Service Name and Service Description
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135 | }
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136 | de_pop_sequence(service, attribute);
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137 |
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138 | // 0x0008 "Service Availability", optional
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139 | // de_add_number(service, DE_UINT, DE_SIZE_16, 0x0008);
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140 | // de_add_number(service, DE_UINT, DE_SIZE_8, service_availability);
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141 |
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142 | // 0x0009 "Bluetooth Profile Descriptor List"
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143 | de_add_number(service, DE_UINT, DE_SIZE_16, SDP_BluetoothProfileDescriptorList);
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144 | attribute = de_push_sequence(service);
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145 | {
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146 | uint8_t *sppProfile = de_push_sequence(attribute);
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147 | {
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148 | de_add_number(sppProfile, DE_UUID, DE_SIZE_16, service_uuid);
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149 | de_add_number(sppProfile, DE_UINT, DE_SIZE_16, 0x0100); // Verision 1.0
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150 | }
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151 | de_pop_sequence(attribute, sppProfile);
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152 | }
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153 | de_pop_sequence(service, attribute);
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154 |
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155 | // 0x0100 "Service Name"
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156 | de_add_number(service, DE_UINT, DE_SIZE_16, 0x0100);
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157 | if (name){
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158 | de_add_data(service, DE_STRING, strlen(name), (uint8_t *) name);
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159 | } else {
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160 | switch (service_uuid){
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161 | case PANU_UUID:
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162 | de_add_data(service, DE_STRING, strlen(default_panu_service_name), (uint8_t *) default_panu_service_name);
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163 | break;
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164 | case NAP_UUID:
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165 | de_add_data(service, DE_STRING, strlen(default_nap_service_name), (uint8_t *) default_nap_service_name);
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166 | break;
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167 | case GN_UUID:
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168 | de_add_data(service, DE_STRING, strlen(default_gn_service_name), (uint8_t *) default_gn_service_name);
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169 | break;
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170 | default:
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171 | break;
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172 | }
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173 | }
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174 |
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175 | // 0x0101 "Service Description"
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176 | de_add_number(service, DE_UINT, DE_SIZE_16, 0x0101);
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177 | if (descriptor){
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178 | de_add_data(service, DE_STRING, strlen(descriptor), (uint8_t *) descriptor);
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179 | } else {
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180 | switch (service_uuid){
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181 | case PANU_UUID:
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182 | de_add_data(service, DE_STRING, strlen(default_panu_service_desc), (uint8_t *) default_panu_service_desc);
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183 | break;
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184 | case NAP_UUID:
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185 | de_add_data(service, DE_STRING, strlen(default_nap_service_desc), (uint8_t *) default_nap_service_desc);
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186 | break;
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187 | case GN_UUID:
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188 | de_add_data(service, DE_STRING, strlen(default_gn_service_desc), (uint8_t *) default_gn_service_desc);
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189 | break;
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190 | default:
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191 | break;
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192 | }
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193 | }
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194 |
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195 | // 0x030A "Security Description"
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196 | de_add_number(service, DE_UINT, DE_SIZE_16, 0x030A);
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197 | de_add_number(service, DE_UINT, DE_SIZE_16, security_desc);
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198 |
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199 | if (service_uuid == PANU_UUID) return;
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200 |
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201 | if (IPv4Subnet){
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202 | // 0x030D "IPv4Subnet", optional
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203 | de_add_number(service, DE_UINT, DE_SIZE_16, 0x030D);
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204 | de_add_data(service, DE_STRING, strlen(IPv4Subnet), (uint8_t *) IPv4Subnet);
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205 | }
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206 |
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207 | if (IPv6Subnet){
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208 | // 0x030E "IPv6Subnet", optional
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209 | de_add_number(service, DE_UINT, DE_SIZE_16, 0x030E);
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210 | de_add_data(service, DE_STRING, strlen(IPv6Subnet), (uint8_t *) IPv6Subnet);
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211 | }
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212 |
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213 | if (service_uuid == GN_UUID) return;
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214 |
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215 | // 0x030B "NetAccessType"
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216 | de_add_number(service, DE_UINT, DE_SIZE_16, 0x030B);
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217 | de_add_number(service, DE_UINT, DE_SIZE_16, net_access_type);
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218 |
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219 | // 0x030C "MaxNetAccessRate"
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220 | de_add_number(service, DE_UINT, DE_SIZE_16, 0x030C);
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221 | de_add_number(service, DE_UINT, DE_SIZE_32, max_net_access_rate);
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222 |
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223 | }
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224 |
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225 |
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226 | void pan_create_nap_service(uint8_t *service, const char *name, const char *description, security_description_t security_desc,
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227 | net_access_type_t net_access_type, uint32_t max_net_access_rate, const char *IPv4Subnet, const char *IPv6Subnet){
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228 |
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229 | pan_create_service(NAP_UUID, service, name, description, security_desc, net_access_type, max_net_access_rate, IPv4Subnet, IPv6Subnet);
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230 | }
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231 |
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232 | void pan_create_gn_service(uint8_t *service, const char *name, const char *description, security_description_t security_desc,
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233 | const char *IPv4Subnet, const char *IPv6Subnet){
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234 | pan_create_service(GN_UUID, service, name, description, security_desc, PAN_NET_ACCESS_TYPE_NONE, 0, IPv4Subnet, IPv6Subnet);
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235 | }
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236 |
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237 | void pan_create_panu_service(uint8_t *service, const char *name, const char *description, security_description_t security_desc){
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238 | pan_create_service(PANU_UUID, service, name, description, security_desc, PAN_NET_ACCESS_TYPE_NONE, 0, NULL, NULL);
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239 | }
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