Ethernet. More...

#include "core/net.h"
#include "core/nic.h"
#include "core/ethernet.h"
#include "core/ethernet_misc.h"
#include "core/socket.h"
#include "core/raw_socket.h"
#include "core/tcp_timer.h"
#include "ipv4/arp.h"
#include "ipv4/ipv4.h"
#include "ipv6/ipv6.h"
#include "mibs/mib2_module.h"
#include "mibs/if_mib_module.h"
#include "debug.h"

Macros
#define	TRACE_LEVEL ETH_TRACE_LEVEL

Functions
error_t	ethInit (NetInterface *interface)
	Ethernet related initialization. More...

void	ethProcessFrame (NetInterface interface, uint8_t frame, size_t length, NetRxAncillary *ancillary)
	Process an incoming Ethernet frame. More...

error_t	ethSendFrame (NetInterface interface, const MacAddr destAddr, uint16_t type, NetBuffer buffer, size_t offset, NetTxAncillary ancillary)
	Send an Ethernet frame. More...

error_t	ethAcceptMacAddr (NetInterface interface, const MacAddr macAddr)
	Add a unicast/multicast address to the MAC filter table. More...

error_t	ethDropMacAddr (NetInterface interface, const MacAddr macAddr)
	Remove a unicast/multicast address from the MAC filter table. More...

error_t	ethAttachLlcRxCalback (NetInterface interface, LlcRxCallback callback, void param)
	Register LLC frame received callback. More...

error_t	ethDetachLlcRxCalback (NetInterface *interface)
	Unregister LLC frame received callback. More...

NetBuffer *	ethAllocBuffer (size_t length, size_t *offset)
	Allocate a buffer to hold an Ethernet frame. More...

error_t	macStringToAddr (const char_t str, MacAddr macAddr)
	Convert a string representation of a MAC address to a binary MAC address. More...

char_t *	macAddrToString (const MacAddr macAddr, char_t str)
	Convert a MAC address to a dash delimited string. More...

void	macAddrToEui64 (const MacAddr macAddr, Eui64 interfaceId)
	Map a MAC address to the IPv6 modified EUI-64 identifier. More...

void	ethDumpHeader (const EthHeader *ethHeader)
	Dump Ethernet header for debugging purpose. More...

error_t	eui64StringToAddr (const char_t str, Eui64 eui64)
	Convert a string representation of an EUI-64 address to a binary EUI-64 address. More...

char_t *	eui64AddrToString (const Eui64 eui64, char_t str)
	Convert an EUI-64 address to a dash delimited string. More...

Variables
const MacAddr	MAC_UNSPECIFIED_ADDR = {{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}}

const MacAddr	MAC_BROADCAST_ADDR = {{{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}}}

const Eui64	EUI64_UNSPECIFIED_ADDR = {{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}}

Detailed Description

Ethernet.

License

SPDX-License-Identifier: GPL-2.0-or-later

This file is part of CycloneTCP Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author: Oryx Embedded SARL (www.oryx-embedded.com)

Version: 2.4.4

Definition in file ethernet.c.

Macro Definition Documentation

◆ TRACE_LEVEL

#define TRACE_LEVEL ETH_TRACE_LEVEL

Definition at line 32 of file ethernet.c.

Function Documentation

◆ ethAcceptMacAddr()

error_t ethAcceptMacAddr	(	NetInterface *	interface,
		const MacAddr *	macAddr
	)

Add a unicast/multicast address to the MAC filter table.

Parameters

[in]	interface	Underlying network interface
[in]	macAddr	MAC address to accept

Returns: Error code

Definition at line 594 of file ethernet.c.

◆ ethAllocBuffer()

NetBuffer* ethAllocBuffer	(	size_t	length,
		size_t *	offset
	)

Allocate a buffer to hold an Ethernet frame.

Parameters

[in]	length	Desired payload length
[out]	offset	Offset to the first byte of the payload

Returns: The function returns a pointer to the newly allocated buffer. If the system is out of resources, NULL is returned

Definition at line 777 of file ethernet.c.

◆ ethAttachLlcRxCalback()

error_t ethAttachLlcRxCalback	(	NetInterface *	interface,
		LlcRxCallback	callback,
		void *	param
	)

Register LLC frame received callback.

Parameters

[in]	interface	Underlying network interface
[in]	callback	Callback function to be called when a LLC frame is received
[in]	param	Callback function parameter (optional)

Returns: Error code

Definition at line 721 of file ethernet.c.

◆ ethDetachLlcRxCalback()

error_t ethDetachLlcRxCalback ( NetInterface * interface )

Unregister LLC frame received callback.

Parameters

[in] interface Underlying network interface

Returns: Error code

Definition at line 749 of file ethernet.c.

◆ ethDropMacAddr()

error_t ethDropMacAddr	(	NetInterface *	interface,
		const MacAddr *	macAddr
	)

Remove a unicast/multicast address from the MAC filter table.

Parameters

[in]	interface	Underlying network interface
[in]	macAddr	MAC address to drop

Returns: Error code

Definition at line 666 of file ethernet.c.

◆ ethDumpHeader()

void ethDumpHeader ( const EthHeader * ethHeader )

Dump Ethernet header for debugging purpose.

Parameters

[in] ethHeader Pointer to the Ethernet header

Definition at line 973 of file ethernet.c.

◆ ethInit()

error_t ethInit ( NetInterface * interface )

Ethernet related initialization.

Parameters

[in] interface Underlying network interface

Returns: Error code

Definition at line 64 of file ethernet.c.

◆ ethProcessFrame()

void ethProcessFrame	(	NetInterface *	interface,
		uint8_t *	frame,
		size_t	length,
		NetRxAncillary *	ancillary
	)

Process an incoming Ethernet frame.

Parameters

[in]	interface	Underlying network interface
[in]	frame	Incoming Ethernet frame to process
[in]	length	Total frame length
[in]	ancillary	Additional options passed to the stack along with the packet

Definition at line 84 of file ethernet.c.

◆ ethSendFrame()

error_t ethSendFrame	(	NetInterface *	interface,
		const MacAddr *	destAddr,
		uint16_t	type,
		NetBuffer *	buffer,
		size_t	offset,
		NetTxAncillary *	ancillary
	)

Send an Ethernet frame.

Parameters

[in]	interface	Underlying network interface
[in]	destAddr	MAC address of the destination host
[in]	type	Ethernet type
[in]	buffer	Multi-part buffer containing the payload
[in]	offset	Offset to the first payload byte
[in]	ancillary	Additional options passed to the stack along with the packet

Returns: Error code

Definition at line 399 of file ethernet.c.

◆ eui64AddrToString()

char_t* eui64AddrToString	(	const Eui64 *	eui64,
		char_t *	str
	)

Convert an EUI-64 address to a dash delimited string.

Parameters

[in]	eui64	Pointer to the EUI-64 address
[out]	str	NULL-terminated string representing the EUI-64 address

Returns: Pointer to the formatted string

Definition at line 1095 of file ethernet.c.

◆ eui64StringToAddr()

error_t eui64StringToAddr	(	const char_t *	str,
		Eui64 *	eui64
	)

Convert a string representation of an EUI-64 address to a binary EUI-64 address.

Parameters

[in]	str	NULL-terminated string representing the EUI-64 address
[out]	eui64	Binary representation of the EUI-64 address

Returns: Error code

Definition at line 995 of file ethernet.c.

◆ macAddrToEui64()

void macAddrToEui64	(	const MacAddr *	macAddr,
		Eui64 *	interfaceId
	)

Map a MAC address to the IPv6 modified EUI-64 identifier.

Parameters

[in]	macAddr	Host MAC address
[out]	interfaceId	IPv6 modified EUI-64 identifier

Definition at line 946 of file ethernet.c.

◆ macAddrToString()

char_t* macAddrToString	(	const MacAddr *	macAddr,
		char_t *	str
	)

Convert a MAC address to a dash delimited string.

Parameters

[in]	macAddr	Pointer to the MAC address
[out]	str	NULL-terminated string representing the MAC address

Returns: Pointer to the formatted string

Definition at line 919 of file ethernet.c.

◆ macStringToAddr()

error_t macStringToAddr	(	const char_t *	str,
		MacAddr *	macAddr
	)

Convert a string representation of a MAC address to a binary MAC address.

Parameters

[in]	str	NULL-terminated string representing the MAC address
[out]	macAddr	Binary representation of the MAC address

Returns: Error code

Definition at line 821 of file ethernet.c.

Variable Documentation

◆ EUI64_UNSPECIFIED_ADDR

const Eui64 EUI64_UNSPECIFIED_ADDR = {{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}}

Definition at line 985 of file ethernet.c.

◆ MAC_BROADCAST_ADDR

const MacAddr MAC_BROADCAST_ADDR = {{{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}}}

Definition at line 55 of file ethernet.c.

◆ MAC_UNSPECIFIED_ADDR

const MacAddr MAC_UNSPECIFIED_ADDR = {{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}}

Definition at line 53 of file ethernet.c.

Macros

Functions

Variables

Detailed Description

License

Macro Definition Documentation

◆ TRACE_LEVEL

Function Documentation

◆ ethAcceptMacAddr()

◆ ethAllocBuffer()

◆ ethAttachLlcRxCalback()

◆ ethDetachLlcRxCalback()

◆ ethDropMacAddr()

◆ ethDumpHeader()

◆ ethInit()

◆ ethProcessFrame()

◆ ethSendFrame()

◆ eui64AddrToString()

◆ eui64StringToAddr()

◆ macAddrToEui64()

◆ macAddrToString()

◆ macStringToAddr()

Variable Documentation

◆ EUI64_UNSPECIFIED_ADDR

◆ MAC_BROADCAST_ADDR

◆ MAC_UNSPECIFIED_ADDR