author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 18 Jan 2010 20:22:35 +0200 | |
changeset 2 | 1c7bc153c08e |
parent 0 | c8830336c852 |
child 26 | 9abfd4f00d37 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: EAP and WLAN authentication protocols. |
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* |
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*/ |
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/* |
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* %version: 9 % |
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*/ |
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// This is enumeration of EAPOL source code. |
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#if defined(USE_EAP_MINIMUM_RELEASE_TRACES) |
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#undef EAP_FILE_NUMBER_ENUM |
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#define EAP_FILE_NUMBER_ENUM 131 |
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#undef EAP_FILE_NUMBER_DATE |
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#define EAP_FILE_NUMBER_DATE 1127594498 |
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#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES) |
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#include "eap_am_memory.h" |
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#include "eap_tools.h" |
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#include "eap_array.h" |
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#include "tls_message.h" |
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#include "tls_peap_types.h" |
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#include "eap_automatic_variable.h" |
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/** @file */ |
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//-------------------------------------------------- |
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EAP_FUNC_EXPORT tls_message_c::~tls_message_c() |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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m_record_messages.reset(); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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} |
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//-------------------------------------------------- |
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EAP_FUNC_EXPORT tls_message_c::tls_message_c( |
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abs_eap_am_tools_c * const tools, |
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abs_tls_message_hash_c * const message_hash, |
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abs_tls_apply_cipher_spec_c * const apply_cipher_spec, |
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abs_tls_change_cipher_spec_c * change_cipher_spec, |
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const bool is_client) |
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: m_am_tools(tools) |
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, m_message_hash(message_hash) |
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, m_apply_cipher_spec(apply_cipher_spec) |
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, m_change_cipher_spec(change_cipher_spec) |
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, m_tls_message_data(tools) |
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, m_received_eap_identifier(0ul) |
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, m_analyse_index(0ul) |
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, m_record_messages(tools) |
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, m_is_client(is_client) |
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, m_includes_tls_handshake_message(false) |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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} |
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//-------------------------------------------------- |
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EAP_FUNC_EXPORT eap_status_e tls_message_c::reset() |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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m_analyse_index = 0ul; |
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m_received_eap_identifier = 0ul; |
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m_includes_tls_handshake_message = false; |
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eap_status_e status = m_record_messages.reset(); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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//-------------------------------------------------- |
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EAP_FUNC_EXPORT u32_t tls_message_c::get_analyse_index() const |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return m_analyse_index; |
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} |
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//-------------------------------------------------- |
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EAP_FUNC_EXPORT void tls_message_c::save_analyse_index(const u32_t analyse_index) |
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{ |
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105 |
EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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106 |
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m_analyse_index = analyse_index; |
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108 |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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} |
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111 |
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//-------------------------------------------------- |
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113 |
|
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EAP_FUNC_EXPORT eap_status_e tls_message_c::set_tls_message_data( |
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eap_variable_data_c * const tls_message_data, |
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u8_t received_eap_identifier) |
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117 |
{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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119 |
|
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eap_status_e status = m_tls_message_data.set_copy_of_buffer(tls_message_data); |
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if (status != eap_status_ok) |
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122 |
{ |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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126 |
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m_received_eap_identifier = received_eap_identifier; |
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128 |
|
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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132 |
|
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133 |
//-------------------------------------------------- |
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134 |
|
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EAP_FUNC_EXPORT eap_variable_data_c * tls_message_c::get_tls_message_data() |
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136 |
{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return &m_tls_message_data; |
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} |
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141 |
|
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//-------------------------------------------------- |
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143 |
|
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EAP_FUNC_EXPORT u8_t tls_message_c::get_received_eap_identifier() |
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145 |
{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return m_received_eap_identifier; |
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} |
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150 |
|
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151 |
//-------------------------------------------------- |
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152 |
|
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EAP_FUNC_EXPORT eap_status_e tls_message_c::add_record_message( |
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tls_record_message_c * const record, |
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const bool free_record, |
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const bool includes_tls_handshake_message) |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
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if (m_includes_tls_handshake_message == false) |
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161 |
{ |
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m_includes_tls_handshake_message = includes_tls_handshake_message; |
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} |
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|
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eap_status_e status = m_record_messages.add_object(record, free_record); |
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166 |
|
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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|
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//-------------------------------------------------- |
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172 |
|
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EAP_FUNC_EXPORT eap_status_e tls_message_c::fragment_tls_records( |
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tls_record_message_c * const tls_record_message, |
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eap_array_c<tls_record_message_c> * const tls_fragments) |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
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eap_status_e status = eap_status_ok; |
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|
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// Here we assume data included in tls_record_message does not include TLS-record header. |
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// Only data TLS-protocol messages are included. All TLS-protocol messages are same protocol. |
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// This function fragments TLS-protocol messages to one or more TLS-record messages. |
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184 |
|
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u32_t size_of_data = tls_record_message->get_data_length(); |
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u32_t offset_of_data = 0ul; |
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|
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while(size_of_data > 0ul) |
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{ |
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tls_record_message_c * const fragment = new tls_record_message_c( |
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m_am_tools, m_message_hash, m_is_client); |
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192 |
|
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eap_automatic_variable_c<tls_record_message_c> |
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automatic_fragment(m_am_tools, fragment); |
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195 |
|
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if (fragment == 0 |
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|| fragment->get_is_valid() == false) |
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{ |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error); |
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} |
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202 |
|
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u32_t fragment_length = size_of_data; |
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if (fragment_length > TLS_PEAP_MAX_RECORD_FRAGMENT_LENGTH) |
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205 |
{ |
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fragment_length = TLS_PEAP_MAX_RECORD_FRAGMENT_LENGTH; |
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} |
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|
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|
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// Adds TLS-record header. |
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status = fragment->get_record_message_data()->set_buffer_length(tls_record_header_c::get_header_length()+fragment_length); |
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if (status != eap_status_ok) |
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{ |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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217 |
|
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tls_record_header_c tmp_tls_record_header_on_tls_message_buffer( |
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m_am_tools, |
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fragment->get_record_message_data()->get_buffer(tls_record_header_c::get_header_length()+fragment_length), |
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tls_record_header_c::get_header_length()+fragment_length); |
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222 |
|
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if (tmp_tls_record_header_on_tls_message_buffer.get_is_valid() == false) |
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224 |
{ |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, eap_status_too_long_message); |
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} |
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228 |
|
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// Note this is the length of the TLS-record header. |
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fragment->get_record_message_data()->set_data_length(tls_record_header_c::get_header_length()); |
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fragment->set_protocol(tls_record_message->get_protocol()); |
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fragment->set_version(tls_record_message->get_version()); |
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// Note this is the length of the TLS-record header and TLS-record data. |
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// The length of the TLS-record data is the length of the fragment. |
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fragment->add_data_length(tls_record_header_c::get_header_length()+fragment_length); |
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fragment->set_tls_record_header_is_included(true); |
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237 |
|
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tmp_tls_record_header_on_tls_message_buffer.reset_header(0ul, tls_record_message->get_version()); |
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tmp_tls_record_header_on_tls_message_buffer.set_protocol(tls_record_message->get_protocol()); |
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tmp_tls_record_header_on_tls_message_buffer.set_data_length(static_cast<u16_t>(fragment_length)); |
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241 |
|
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EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("\n"))); |
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EAP_TRACE_DEBUG( |
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m_am_tools, |
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TRACE_FLAGS_DEFAULT, |
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(EAPL("TLS: %s: tls_message_c::fragment_tls_records(): %s fragment %d bytes from %d bytes.\n"), |
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(m_is_client == true ? "client": "server"), |
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tmp_tls_record_header_on_tls_message_buffer.get_tls_protocol_string(), |
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fragment_length, |
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tls_record_message->get_data_length())); |
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251 |
|
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// Adds TLS-record data, this includes TLS-protocol messages. |
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status = fragment->get_record_message_data()->add_data( |
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tls_record_message->get_record_message_data()->get_data_offset( |
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offset_of_data, fragment_length), |
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fragment_length); |
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if (status != eap_status_ok) |
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{ |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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262 |
|
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size_of_data -= fragment_length; |
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offset_of_data += fragment_length; |
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|
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automatic_fragment.do_not_free_variable(); |
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|
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status = tls_fragments->add_object(fragment, true); |
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if (status != eap_status_ok) |
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270 |
{ |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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|
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} // while() |
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|
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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|
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//-------------------------------------------------- |
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|
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EAP_FUNC_EXPORT eap_status_e tls_message_c::add_message_data( |
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eap_variable_data_c * const tls_message_buffer, |
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bool * const includes_tls_handshake_message) |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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288 |
|
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eap_status_e status = eap_status_ok; |
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|
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tls_message_buffer->reset(); |
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status = tls_message_buffer->set_buffer_length(TLS_PEAP_DEFAULT_RECORD_LENGTH); |
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if (status != eap_status_ok) |
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294 |
{ |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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298 |
|
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for (u32_t ind = 0ul; ind < m_record_messages.get_object_count(); ind++) |
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300 |
{ |
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tls_record_message_c * const tls_record_message = m_record_messages.get_object(ind); |
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if (tls_record_message == 0) |
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303 |
{ |
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304 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error); |
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306 |
} |
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307 |
|
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308 |
if (tls_record_message->get_record_message_data()->get_is_valid() == false |
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309 |
|| tls_record_message->get_record_message_data()->get_buffer_length() < TLS_PEAP_DEFAULT_RECORD_LENGTH) |
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{ |
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status = tls_record_message->get_record_message_data()->set_buffer_length(TLS_PEAP_DEFAULT_RECORD_LENGTH); |
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if (status != eap_status_ok) |
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313 |
{ |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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} |
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318 |
|
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tls_record_message->get_record_message_data()->set_data_length(0ul); |
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|
320 |
|
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|
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// This function creates data of TLS-protocol message to internal buffer (tls_record_message->get_record_message_data()). |
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status = tls_record_message->add_message_data(); |
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323 |
if (status != eap_status_ok) |
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324 |
{ |
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325 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return EAP_STATUS_RETURN(m_am_tools, status); |
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} |
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328 |
|
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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330 |
|
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EAP_ASSERT(tls_record_message->get_tls_record_header_is_included() == false); |
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332 |
|
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EAP_TRACE_DATA_DEBUG( |
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334 |
m_am_tools, |
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335 |
EAP_TRACE_FLAGS_MESSAGE_DATA, |
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336 |
(EAPL("TLS-record data"), |
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tls_record_message->get_record_message_data()->get_data( |
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tls_record_message->get_record_message_data()->get_data_length()), |
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tls_record_message->get_record_message_data()->get_data_length())); |
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|
340 |
|
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341 |
// Fragmentation checks the TLS-record is not too long, data more than 2^14 bytes. |
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342 |
// It fragments TLS-record to two or more TLS-records. |
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343 |
// TLS-records could be stored to object of type of eap_array_c<tls_record_message_c>. |
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344 |
// In a case the TLS-record cannot be fragmented the whole TLS-message must be dropped. |
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345 |
eap_array_c<tls_record_message_c> tls_fragments(m_am_tools); |
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status = fragment_tls_records( |
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347 |
tls_record_message, |
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348 |
&tls_fragments); |
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349 |
if (status != eap_status_ok) |
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|
350 |
{ |
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|
351 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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352 |
return EAP_STATUS_RETURN(m_am_tools, status); |
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|
353 |
} |
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|
354 |
|
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355 |
// After the fragmentation cipher suite can be applied to every fragment. |
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for (u32_t ind_frag = 0ul; ind_frag < tls_fragments.get_object_count(); ind_frag++) |
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|
357 |
{ |
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tls_record_message_c * const fragment = tls_fragments.get_object(ind_frag); |
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if (fragment == 0) |
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|
360 |
{ |
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|
361 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
362 |
return EAP_STATUS_RETURN(m_am_tools, eap_status_process_general_error); |
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|
363 |
} |
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|
364 |
|
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365 |
EAP_ASSERT(fragment->get_data_length() == fragment->get_record_message_data()->get_data_length()); |
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|
366 |
|
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367 |
status = m_apply_cipher_spec->apply_send_cipher_suite(fragment->get_record_message_data()); |
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368 |
if (status != eap_status_ok) |
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|
369 |
{ |
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|
370 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
371 |
return EAP_STATUS_RETURN(m_am_tools, status); |
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|
372 |
} |
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|
373 |
|
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|
374 |
if (ind_frag == 0ul) |
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|
375 |
{ |
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|
376 |
if (fragment->get_protocol() == tls_record_protocol_change_cipher_spec) |
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|
377 |
{ |
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|
378 |
// This is the right place to change the send cipher spec. |
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|
379 |
status = m_change_cipher_spec->change_cipher_spec(true); |
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|
380 |
if (status != eap_status_ok) |
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|
381 |
{ |
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|
382 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
383 |
return EAP_STATUS_RETURN(m_am_tools, status); |
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|
384 |
} |
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|
385 |
} |
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|
386 |
} |
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|
387 |
|
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|
388 |
status = tls_message_buffer->add_data(fragment->get_record_message_data()); |
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|
389 |
if (status != eap_status_ok) |
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|
390 |
{ |
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|
391 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
392 |
return EAP_STATUS_RETURN(m_am_tools, status); |
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|
393 |
} |
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394 |
} // for() |
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|
395 |
|
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|
396 |
} // for() |
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|
397 |
|
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|
398 |
*includes_tls_handshake_message = m_includes_tls_handshake_message; |
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|
399 |
|
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|
400 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
401 |
return EAP_STATUS_RETURN(m_am_tools, status); |
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|
402 |
} |
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|
403 |
|
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|
404 |
//-------------------------------------------------- |
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|
405 |
|
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|
406 |
EAP_FUNC_EXPORT u32_t tls_message_c::get_record_message_count() const |
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|
407 |
{ |
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|
408 |
EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
409 |
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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|
410 |
return m_record_messages.get_object_count(); |
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|
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} |
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//-------------------------------------------------- |
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EAP_FUNC_EXPORT tls_record_message_c * tls_message_c::get_record_message( |
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const u32_t index) const |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return m_record_messages.get_object(index); |
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} |
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//-------------------------------------------------- |
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EAP_FUNC_EXPORT eap_status_e tls_message_c::remove_record_message( |
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const u32_t index) |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return m_record_messages.remove_object(index); |
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} |
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//-------------------------------------------------- |
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EAP_FUNC_EXPORT tls_record_message_c * tls_message_c::get_last_record_message() const |
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{ |
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EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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return m_record_messages.get_last_object(); |
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} |
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|
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//-------------------------------------------------- |
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|
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// End. |