/*
* Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: EAP and WLAN authentication protocols.
*
*/
/*
* %version: 11.1.5 %
*/
// This is enumeration of EAPOL source code.
#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)
#undef EAP_FILE_NUMBER_ENUM
#define EAP_FILE_NUMBER_ENUM 21
#undef EAP_FILE_NUMBER_DATE
#define EAP_FILE_NUMBER_DATE 1127594498
#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)
#include "eap_am_memory.h"
#include "eap_buffer.h"
#include "eap_am_assert.h"
#include "eap_am_tools.h"
#include "eapol_ethernet_header.h"
static const bool EAP_BUFFER_DO_PACKET_RETRANSMISSION_INIT_VALUE = true;
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::check_guard_bytes(const u8_t * const guard) const
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return false;
}
u32_t ind = 0;
for (ind = 0; ind < m_data->m_mem_guard_length; ind++)
{
if (guard[ind] != EAP_MEM_GUARD_BYTE)
{
EAP_TRACE_ERROR(
m_am_tools,
TRACE_FLAGS_DEFAULT,
(EAPL("ERROR: check_guard_bytes(): buffer overflow in byte %d."),
ind));
EAP_ASSERT_ANYWAY_TOOLS(m_am_tools);
return false;
}
}
return true;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT abs_eap_am_tools_c * eap_buf_chain_base_c::get_am_tools()
{
return m_am_tools;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::check_guards() const
{
#if defined(_DEBUG)
if (m_data == 0
|| m_data->m_buffer == 0)
{
return false;
}
if (m_data->m_buffer->get_is_writable() == true)
{
const u8_t * const buffer = m_data->m_buffer->get_data(
m_data->m_buffer->get_data_length());
if (buffer == 0)
{
return true;
}
if (check_guard_bytes(buffer) == false
|| check_guard_bytes(
buffer+(m_data->m_buffer->get_buffer_length()
- m_data->m_mem_guard_length)) == false
/* || check_guard_bytes(buffer+(m_data->m_real_data_length
- m_data->m_mem_guard_length)) == false */)
{
EAP_TRACE_ERROR(
m_am_tools,
TRACE_FLAGS_DEFAULT,
(EAPL("ERROR: check_guard_bytes(): buffer overflow, buffer 0x%08x."),
buffer - m_data->m_mem_guard_length));
EAP_ASSERT_ANYWAY_TOOLS(m_am_tools);
return false;
}
}
#endif //#if defined(_DEBUG)
return true;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_base_c::~eap_buf_chain_base_c()
{
if (m_data != 0)
{
check_guards();
delete m_data->m_buffer;
m_data->m_buffer = 0;
}
delete m_data;
m_data = 0;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_base_c::eap_buf_chain_base_c(
const eap_write_buffer_e,
abs_eap_am_tools_c * const tools,
u8_t * const data,
const u32_t data_length,
const bool reset_data,
const bool free_buffer,
const u32_t mem_guard_length)
: m_am_tools(tools)
, m_data(0)
{
eap_status_e status = initialize(mem_guard_length);
if (status != eap_status_ok)
{
if (free_buffer == true)
{
delete [] data;
}
return;
}
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_data->m_buffer == 0)
{
if (free_buffer == true)
{
delete [] data;
}
return;
}
status = m_data->m_buffer->set_buffer(
data,
data_length,
free_buffer,
true);
if (status != eap_status_ok)
{
if (free_buffer == true)
{
delete [] data;
}
m_data->m_is_valid = false;
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
return;
}
EAP_ASSERT_TOOLS(m_am_tools, data_length >= m_data->m_mem_guard_length);
m_data->m_buffer->set_data_length(data_length - m_data->m_mem_guard_length);
set_mem_guard_bytes();
if (reset_data == true)
{
reset_data_buffer();
}
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_base_c::eap_buf_chain_base_c(
const eap_read_buffer_e,
abs_eap_am_tools_c * const tools,
const u8_t * const data,
const u32_t data_length,
const bool free_buffer)
: m_am_tools(tools)
, m_data(0)
{
eap_status_e status = initialize(0ul);
if (status != eap_status_ok)
{
return;
}
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_data->m_buffer == 0)
{
return;
}
status = m_data->m_buffer->set_buffer(
data,
data_length,
free_buffer,
false);
if (status != eap_status_ok)
{
m_data->m_is_valid = false;
EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
return;
}
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_base_c::eap_buf_chain_base_c(
const eap_write_buffer_e,
abs_eap_am_tools_c * const tools,
const u32_t data_length)
: m_am_tools(tools)
, m_data(0)
{
eap_status_e status = initialize(EAP_MEM_GUARD_LENGTH);
if (status != eap_status_ok)
{
return;
}
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_data->m_buffer == 0)
{
return;
}
status = m_data->m_buffer->init(data_length+2*m_data->m_mem_guard_length);
if (status == eap_status_ok)
{
m_data->m_buffer->set_is_valid();
m_data->m_buffer->set_data_length(m_data->m_mem_guard_length);
set_mem_guard_bytes();
}
else
{
m_data->m_is_valid = false;
}
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_base_c::eap_buf_chain_base_c(
const eap_read_buffer_e,
abs_eap_am_tools_c * const tools,
const u32_t data_length)
: m_am_tools(tools)
, m_data(0)
{
eap_status_e status = initialize(EAP_MEM_GUARD_LENGTH);
if (status != eap_status_ok)
{
return;
}
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_data->m_buffer == 0)
{
return;
}
if (data_length > 0ul)
{
status = m_data->m_buffer->init(data_length+2*m_data->m_mem_guard_length);
if (status == eap_status_ok)
{
m_data->m_buffer->set_is_valid();
m_data->m_buffer->set_data_length(m_data->m_mem_guard_length);
set_mem_guard_bytes();
}
else
{
m_data->m_is_valid = false;
}
}
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_status_e eap_buf_chain_base_c::initialize(
const u32_t mem_guard_length)
{
m_data = new eap_buf_chain_base_impl_str;
if (m_data == 0)
{
return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
}
m_data->m_mem_guard_length = mem_guard_length;
m_data->m_buffer = 0;
m_data->m_next_buffer = 0;
m_data->m_random_error_type = eap_random_error_type_none_keep_this_last_case;
m_data->m_send_packet_index = 0ul;
m_data->m_stack_address = 0;
m_data->m_is_valid = false;
m_data->m_is_manipulated = false;
m_data->m_do_packet_retransmission = EAP_BUFFER_DO_PACKET_RETRANSMISSION_INIT_VALUE;
m_data->m_is_client = true;
m_data->m_do_length_checks = false;
m_data->m_encrypt = false;
m_data->m_buffer = new eap_variable_data_c(m_am_tools);
if (m_data->m_buffer == 0
|| m_data->m_buffer->get_is_valid() == false)
{
delete m_data;
m_data = 0;
return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
}
m_data->m_is_valid = true;
return EAP_STATUS_RETURN(m_am_tools, eap_status_ok);
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::reset_data_buffer()
{
if (m_data == 0
|| m_data->m_buffer == 0)
{
return;
}
m_am_tools->memset(
get_data(get_data_length()),
0,
get_data_length());
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_mem_guard_bytes()
{
EAP_ASSERT_TOOLS(
m_am_tools,
m_data != 0);
EAP_ASSERT_TOOLS(
m_am_tools,
m_data->m_buffer->get_buffer_length()
>= m_data->m_mem_guard_length);
EAP_ASSERT_TOOLS(
m_am_tools,
m_data->m_buffer->get_data_length()
>= m_data->m_mem_guard_length);
if (m_data == 0
|| m_data->m_buffer == 0)
{
return;
}
u8_t * const buffer = m_data->m_buffer->get_data(m_data->m_buffer->get_data_length());
m_am_tools->memset(
buffer,
EAP_MEM_GUARD_BYTE,
m_data->m_mem_guard_length);
m_am_tools->memset(
buffer+(m_data->m_buffer->get_buffer_length() - m_data->m_mem_guard_length),
EAP_MEM_GUARD_BYTE,
m_data->m_mem_guard_length);
m_am_tools->memset(
buffer+(m_data->m_buffer->get_data_length()),
EAP_MEM_GUARD_BYTE,
m_data->m_mem_guard_length);
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT u32_t eap_buf_chain_base_c::get_mem_guard_length()
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return 0;
}
return m_data->m_mem_guard_length;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT u32_t eap_buf_chain_base_c::get_buffer_length() const
{
EAP_ASSERT_TOOLS(
m_am_tools,
m_data != 0);
EAP_ASSERT_TOOLS(
m_am_tools,
m_data->m_buffer->get_buffer_length()
>= 2ul*m_data->m_mem_guard_length);
if (m_data == 0
|| m_data->m_buffer == 0)
{
return 0;
}
return m_data->m_buffer->get_buffer_length() - 2ul*m_data->m_mem_guard_length;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT u32_t eap_buf_chain_base_c::get_data_length() const
{
EAP_ASSERT_TOOLS(
m_am_tools,
m_data != 0);
EAP_ASSERT_TOOLS(
m_am_tools,
m_data->m_buffer->get_data_length()
>= m_data->m_mem_guard_length);
if (m_data == 0
|| m_data->m_buffer == 0)
{
return 0;
}
return m_data->m_buffer->get_data_length() - m_data->m_mem_guard_length;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT u8_t * eap_buf_chain_base_c::get_data_offset(
const u32_t p_offset,
const u32_t p_continuous_bytes) const
{
EAP_ASSERT_TOOLS(
m_am_tools,
m_data != 0);
EAP_ASSERT_TOOLS(
m_am_tools,
m_data->m_buffer->get_data_length() >= m_data->m_mem_guard_length);
if (m_data == 0
|| m_data->m_buffer == 0)
{
return 0;
}
if (p_offset+p_continuous_bytes <= get_buffer_length())
{
return m_data->m_buffer->get_buffer_offset(
p_offset + m_data->m_mem_guard_length,
p_continuous_bytes);
}
else
{
EAP_TRACE_ERROR(
m_am_tools,
TRACE_FLAGS_DEFAULT,
(EAPL("ERROR: Fragments are not supported yet.\n")));
EAP_ASSERT_ALWAYS_TOOLS(
m_am_tools,
p_offset+p_continuous_bytes <= get_data_length());
return 0;
}
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT u8_t * eap_buf_chain_base_c::get_data(
const u32_t p_continuous_bytes) const
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_data->m_buffer == 0)
{
return 0;
}
return get_data_offset(0u, p_continuous_bytes);
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_status_e eap_buf_chain_base_c::set_buffer_length(
const u32_t buffer_length)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
EAP_ASSERT_TOOLS(m_am_tools, m_data->m_buffer != 0);
if (m_data == 0
|| m_am_tools == 0
|| m_am_tools->get_is_valid() == false)
{
return eap_status_allocation_error;
}
if (m_data->m_buffer == 0)
{
return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
}
m_data->m_buffer->reset();
eap_status_e status = m_data->m_buffer->init(buffer_length+2*m_data->m_mem_guard_length);
if (status == eap_status_ok)
{
m_data->m_buffer->set_is_valid();
m_data->m_buffer->set_data_length(m_data->m_mem_guard_length);
set_mem_guard_bytes();
}
return EAP_STATUS_RETURN(m_am_tools, status);
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_status_e eap_buf_chain_base_c::set_data_length(
const u32_t length)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
EAP_ASSERT_TOOLS(m_am_tools, m_data->m_buffer != 0);
EAP_ASSERT_TOOLS(m_am_tools, m_data->m_buffer->get_is_writable() == true);
if (m_data == 0
|| m_am_tools == 0
|| m_am_tools->get_is_valid() == false)
{
return eap_status_allocation_error;
}
if (m_data->m_buffer == 0)
{
return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
}
check_guards();
if (get_buffer_length() > length)
{
// Here we must reset the memory guard bytes because not all of the buffer is used.
EAP_ASSERT_TOOLS(
m_am_tools,
m_data->m_buffer->get_data_length()
>= m_data->m_mem_guard_length);
u8_t * const buffer = m_data->m_buffer->get_data_offset(
m_data->m_mem_guard_length,
m_data->m_buffer->get_data_length() - m_data->m_mem_guard_length);
if (buffer == 0)
{
return EAP_STATUS_RETURN(m_am_tools, eap_status_buffer_too_short);
}
m_am_tools->memset(
buffer+length,
EAP_MEM_GUARD_BYTE,
m_data->m_mem_guard_length);
}
m_data->m_buffer->set_data_length(length + m_data->m_mem_guard_length);
return EAP_STATUS_RETURN(m_am_tools, eap_status_ok);
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::get_is_valid() const
{
if (m_data == 0)
{
return false;
}
return m_data->m_is_valid;
}
//--------------------------------------------------
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::get_is_valid_data() const
{
if (m_data == 0)
{
return false;
}
if (m_data->m_is_valid == false)
{
return false;
}
// Note the buffer could be empty.
if (m_data->m_buffer == 0)
{
return false;
}
return true;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_is_manipulated()
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return;
}
m_data->m_is_manipulated = true;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::get_is_manipulated()
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return false;
}
return m_data->m_is_manipulated;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_send_packet_index(const u32_t send_packet_index)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return;
}
m_data->m_send_packet_index = send_packet_index;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT u32_t eap_buf_chain_base_c::get_send_packet_index()
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return 0;
}
return m_data->m_send_packet_index;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_random_error_type(
eap_random_error_type error_type)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return;
}
m_data->m_random_error_type = error_type;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_random_error_type eap_buf_chain_base_c::get_random_error_type()
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return eap_random_error_type_manipulate_byte;
}
return m_data->m_random_error_type;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_do_packet_retransmission(
const bool do_packet_retransmission_when_true)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return;
}
m_data->m_do_packet_retransmission = do_packet_retransmission_when_true;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::get_do_packet_retransmission()
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0)
{
return false;
}
return m_data->m_do_packet_retransmission;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_is_client(const bool is_client_when_true)
{
m_data->m_is_client = is_client_when_true;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::get_is_client() const
{
return m_data->m_is_client;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_do_length_checks(const bool do_length_checks)
{
m_data->m_do_length_checks = do_length_checks;
}
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::get_do_length_checks() const
{
return m_data->m_do_length_checks;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_encrypt(const bool encrypt_when_true)
{
m_data->m_encrypt = encrypt_when_true;
}
EAP_FUNC_EXPORT bool eap_buf_chain_base_c::get_encrypt() const
{
return m_data->m_encrypt;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_base_c::set_stack_address(const void * const stack_address)
{
m_data->m_stack_address = stack_address;
}
EAP_FUNC_EXPORT const void * eap_buf_chain_base_c::get_stack_address() const
{
return m_data->m_stack_address;
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_status_e eap_buf_chain_base_c::add_data(
const void * const buffer,
const u32_t buffer_length)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_am_tools == 0
|| m_am_tools->get_is_valid() == false)
{
return eap_status_allocation_error;
}
eap_status_e status = add_data_to_offset(
get_data_length(),
buffer,
buffer_length);
return EAP_STATUS_RETURN(m_am_tools, status);
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_status_e eap_buf_chain_base_c::add_data(
const eap_variable_data_c * const buffer)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_am_tools == 0
|| m_am_tools->get_is_valid() == false)
{
return eap_status_allocation_error;
}
return EAP_STATUS_RETURN(m_am_tools, add_data(
buffer->get_data(buffer->get_data_length()),
buffer->get_data_length()));
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_status_e eap_buf_chain_base_c::add_data_to_offset(
const u32_t offset,
const void * const buffer,
const u32_t buffer_length)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_am_tools == 0
|| m_am_tools->get_is_valid() == false)
{
return eap_status_allocation_error;
}
eap_status_e status = m_data->m_buffer->add_data_to_offset(
m_data->m_mem_guard_length+offset,
buffer,
buffer_length);
return EAP_STATUS_RETURN(m_am_tools, status);
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_status_e eap_buf_chain_base_c::add_data_to_offset(
const u32_t offset,
const eap_variable_data_c * const buffer)
{
EAP_ASSERT_TOOLS(m_am_tools, m_data != 0);
if (m_data == 0
|| m_am_tools == 0
|| m_am_tools->get_is_valid() == false)
{
return eap_status_allocation_error;
}
eap_status_e status = m_data->m_buffer->add_data_to_offset(
m_data->m_mem_guard_length+offset,
buffer->get_data(buffer->get_data_length()),
buffer->get_data_length());
return EAP_STATUS_RETURN(m_am_tools, status);
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_wr_c::~eap_buf_chain_wr_c()
{
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_wr_c::eap_buf_chain_wr_c(
const eap_write_buffer_e,
abs_eap_am_tools_c * const tools,
u8_t * const data,
const u32_t data_length,
const bool reset_data,
const bool free_buffer,
const u32_t mem_guard_length)
: eap_buf_chain_base_c(
eap_write_buffer,
tools,
data,
data_length,
reset_data,
free_buffer,
mem_guard_length)
{
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_wr_c::eap_buf_chain_wr_c(
const eap_write_buffer_e,
abs_eap_am_tools_c * const tools,
const u32_t data_length)
: eap_buf_chain_base_c(eap_write_buffer, tools, data_length)
{
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_wr_c::eap_buf_chain_wr_c(
const eap_write_buffer_e,
abs_eap_am_tools_c * const tools)
: eap_buf_chain_base_c(eap_write_buffer, tools, 0ul)
{
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_wr_c::force_inheritance()
{
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT u8_t * eap_buf_chain_wr_c::get_ethernet_header()
{
return static_cast<u8_t *>(
get_data(
eapol_ethernet_header_wr_c::get_header_length()));
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_wr_c * eap_buf_chain_wr_c::copy()
{
if (get_is_valid() == false)
{
return 0;
}
u8_t *new_data = new u8_t[get_buffer_length()+(2u*get_mem_guard_length())];
if (new_data == 0)
{
return 0;
}
get_am_tools()->memmove(
new_data+get_mem_guard_length(),
get_data(get_buffer_length()),
get_buffer_length());
eap_buf_chain_wr_c * const new_buffer
= new eap_buf_chain_wr_c(
eap_write_buffer,
get_am_tools(),
new_data,
get_buffer_length()+(2u*get_mem_guard_length()),
false, // Do not init data
true, // Free buffer on destructor
get_mem_guard_length());
if (new_buffer == 0
|| new_buffer->get_is_valid_data() == false)
{
delete new_buffer;
return 0;
}
new_buffer->set_data_length(get_data_length());
new_buffer->set_send_packet_index(get_send_packet_index());
new_buffer->set_random_error_type(get_random_error_type());
new_buffer->set_stack_address(get_stack_address());
new_buffer->set_is_client(get_is_client());
return new_buffer;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_rd_c::~eap_buf_chain_rd_c()
{
check_guards();
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_rd_c::eap_buf_chain_rd_c(
const eap_read_buffer_e,
abs_eap_am_tools_c * const tools,
const u8_t * const data,
const u32_t data_length,
const bool free_buffer)
: eap_buf_chain_base_c(
eap_read_buffer,
tools,
data,
data_length,
free_buffer)
{
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT eap_buf_chain_rd_c::eap_buf_chain_rd_c(
const eap_read_buffer_e,
abs_eap_am_tools_c * const tools,
const u32_t data_length)
: eap_buf_chain_base_c(eap_read_buffer, tools, data_length)
{
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT void eap_buf_chain_rd_c::force_inheritance()
{
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT const u8_t * eap_buf_chain_rd_c::get_data(
const u32_t p_continuous_bytes) const
{
return static_cast<const u8_t *>(
eap_buf_chain_base_c::get_data(p_continuous_bytes));
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT const u8_t * eap_buf_chain_rd_c::get_data_offset(
const u32_t p_offset,
const u32_t p_continuous_bytes) const
{
return static_cast<const u8_t *>(
eap_buf_chain_base_c::get_data_offset(
p_offset,
p_continuous_bytes));
}
//-----------------------------------------------------------------------------
EAP_FUNC_EXPORT const u8_t * eap_buf_chain_rd_c::get_ethernet_header() const
{
return static_cast<const u8_t *>(
get_data(
eapol_ethernet_header_rd_c::get_header_length()));
}
//-----------------------------------------------------------------------------
// End.