#include <stdint.h>
#include <stdio.h>
#include <rte_memcpy.h>
#include <rte_random.h>
#include <rte_mbuf.h>
#include <rte_byteorder.h>

Data Structures
struct	ether_addr
struct	ether_hdr
struct	vlan_hdr
struct	vxlan_hdr

Macros
#define	ETHER_ADDR_LEN 6
#define	ETHER_TYPE_LEN 2
#define	ETHER_CRC_LEN 4
#define	ETHER_HDR_LEN (ETHER_ADDR_LEN * 2 + ETHER_TYPE_LEN)
#define	ETHER_MIN_LEN 64
#define	ETHER_MAX_LEN 1518
#define	ETHER_MTU (ETHER_MAX_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
#define	ETHER_MAX_VLAN_FRAME_LEN (ETHER_MAX_LEN + 4)
#define	ETHER_MAX_JUMBO_FRAME_LEN 0x3F00
#define	ETHER_MAX_VLAN_ID 4095
#define	ETHER_MIN_MTU 68
#define	ETHER_LOCAL_ADMIN_ADDR 0x02
#define	ETHER_GROUP_ADDR 0x01
#define	ETHER_TYPE_IPv4 0x0800
#define	ETHER_TYPE_IPv6 0x86DD
#define	ETHER_TYPE_ARP 0x0806
#define	ETHER_TYPE_RARP 0x8035
#define	ETHER_TYPE_VLAN 0x8100
#define	ETHER_TYPE_1588 0x88F7
#define	ETHER_TYPE_SLOW 0x8809
#define	ETHER_TYPE_TEB 0x6558
#define	ETHER_VXLAN_HLEN (sizeof(struct udp_hdr) + sizeof(struct vxlan_hdr))

Functions
static int	is_same_ether_addr (const struct ether_addr ea1, const struct ether_addr ea2)
static int	is_zero_ether_addr (const struct ether_addr *ea)
static int	is_unicast_ether_addr (const struct ether_addr *ea)
static int	is_multicast_ether_addr (const struct ether_addr *ea)
static int	is_broadcast_ether_addr (const struct ether_addr *ea)
static int	is_universal_ether_addr (const struct ether_addr *ea)
static int	is_local_admin_ether_addr (const struct ether_addr *ea)
static int	is_valid_assigned_ether_addr (const struct ether_addr *ea)
static void	eth_random_addr (uint8_t *addr)
static void	ether_addr_copy (const struct ether_addr ea_from, struct ether_addr ea_to)
static void	ether_format_addr (char buf, uint16_t size, const struct ether_addr eth_addr)
static int	rte_vlan_strip (struct rte_mbuf *m)
static int	rte_vlan_insert (struct rte_mbuf **m)

Detailed Description

Ethernet Helpers in RTE

Definition in file rte_ether.h.

Macro Definition Documentation

#define ETHER_ADDR_LEN 6

Length of Ethernet address.

Definition at line 55 of file rte_ether.h.

#define ETHER_TYPE_LEN 2

Length of Ethernet type field.

Definition at line 56 of file rte_ether.h.

#define ETHER_CRC_LEN 4

Length of Ethernet CRC.

Definition at line 57 of file rte_ether.h.

#define ETHER_HDR_LEN (ETHER_ADDR_LEN * 2 + ETHER_TYPE_LEN)

Length of Ethernet header.

Definition at line 58 of file rte_ether.h.

#define ETHER_MIN_LEN 64

Minimum frame len, including CRC.

Definition at line 60 of file rte_ether.h.

#define ETHER_MAX_LEN 1518

Maximum frame len, including CRC.

Definition at line 61 of file rte_ether.h.

#define ETHER_MTU (ETHER_MAX_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)

Ethernet MTU.

Definition at line 62 of file rte_ether.h.

#define ETHER_MAX_VLAN_FRAME_LEN (ETHER_MAX_LEN + 4)

Maximum VLAN frame length, including CRC.

Definition at line 65 of file rte_ether.h.

#define ETHER_MAX_JUMBO_FRAME_LEN 0x3F00

Maximum Jumbo frame length, including CRC.

Definition at line 68 of file rte_ether.h.

#define ETHER_MAX_VLAN_ID 4095

Maximum VLAN ID.

Definition at line 71 of file rte_ether.h.

#define ETHER_MIN_MTU 68

Minimum MTU for IPv4 packets, see RFC 791.

Definition at line 73 of file rte_ether.h.

#define ETHER_LOCAL_ADMIN_ADDR 0x02

Locally assigned Eth. address.

Definition at line 90 of file rte_ether.h.

#define ETHER_GROUP_ADDR 0x01

Multicast or broadcast Eth. address.

Definition at line 91 of file rte_ether.h.

#define ETHER_TYPE_IPv4 0x0800

IPv4 Protocol.

Definition at line 327 of file rte_ether.h.

#define ETHER_TYPE_IPv6 0x86DD

IPv6 Protocol.

Definition at line 328 of file rte_ether.h.

#define ETHER_TYPE_ARP 0x0806

Arp Protocol.

Definition at line 329 of file rte_ether.h.

#define ETHER_TYPE_RARP 0x8035

Reverse Arp Protocol.

Definition at line 330 of file rte_ether.h.

#define ETHER_TYPE_VLAN 0x8100

IEEE 802.1Q VLAN tagging.

Definition at line 331 of file rte_ether.h.

#define ETHER_TYPE_1588 0x88F7

IEEE 802.1AS 1588 Precise Time Protocol.

Definition at line 332 of file rte_ether.h.

#define ETHER_TYPE_SLOW 0x8809

Slow protocols (LACP and Marker).

Definition at line 333 of file rte_ether.h.

#define ETHER_TYPE_TEB 0x6558

Transparent Ethernet Bridging.

Definition at line 334 of file rte_ether.h.

#define ETHER_VXLAN_HLEN (sizeof(struct udp_hdr) + sizeof(struct vxlan_hdr))

VXLAN tunnel header length.

Definition at line 336 of file rte_ether.h.

Function Documentation

static int is_same_ether_addr	(	const struct ether_addr *	ea1,
		const struct ether_addr *	ea2
	)

inlinestatic

Check if two Ethernet addresses are the same.

Parameters

ea1	A pointer to the first ether_addr structure containing the ethernet address.
ea2	A pointer to the second ether_addr structure containing the ethernet address.

Returns: True (1) if the given two ethernet address are the same; False (0) otherwise.

Definition at line 107 of file rte_ether.h.

static int is_zero_ether_addr ( const struct ether_addr * ea )

inlinestatic

Check if an Ethernet address is filled with zeros.

Parameters

ea	A pointer to a ether_addr structure containing the ethernet address to check.

Returns: True (1) if the given ethernet address is filled with zeros; false (0) otherwise.

Definition at line 127 of file rte_ether.h.

static int is_unicast_ether_addr ( const struct ether_addr * ea )

inlinestatic

Check if an Ethernet address is a unicast address.

Parameters

ea	A pointer to a ether_addr structure containing the ethernet address to check.

Returns: True (1) if the given ethernet address is a unicast address; false (0) otherwise.

Definition at line 146 of file rte_ether.h.

static int is_multicast_ether_addr ( const struct ether_addr * ea )

inlinestatic

Check if an Ethernet address is a multicast address.

Parameters

ea	A pointer to a ether_addr structure containing the ethernet address to check.

Returns: True (1) if the given ethernet address is a multicast address; false (0) otherwise.

Definition at line 161 of file rte_ether.h.

static int is_broadcast_ether_addr ( const struct ether_addr * ea )

inlinestatic

Check if an Ethernet address is a broadcast address.

Parameters

ea	A pointer to a ether_addr structure containing the ethernet address to check.

Returns: True (1) if the given ethernet address is a broadcast address; false (0) otherwise.

Definition at line 176 of file rte_ether.h.

static int is_universal_ether_addr ( const struct ether_addr * ea )

inlinestatic

Check if an Ethernet address is a universally assigned address.

Parameters

ea	A pointer to a ether_addr structure containing the ethernet address to check.

Returns: True (1) if the given ethernet address is a universally assigned address; false (0) otherwise.

Definition at line 194 of file rte_ether.h.

static int is_local_admin_ether_addr ( const struct ether_addr * ea )

inlinestatic

Check if an Ethernet address is a locally assigned address.

Parameters

ea	A pointer to a ether_addr structure containing the ethernet address to check.

Returns: True (1) if the given ethernet address is a locally assigned address; false (0) otherwise.

Definition at line 209 of file rte_ether.h.

static int is_valid_assigned_ether_addr ( const struct ether_addr * ea )

inlinestatic

Check if an Ethernet address is a valid address. Checks that the address is a unicast address and is not filled with zeros.

Parameters

ea	A pointer to a ether_addr structure containing the ethernet address to check.

Returns: True (1) if the given ethernet address is valid; false (0) otherwise.

Definition at line 225 of file rte_ether.h.

static void eth_random_addr ( uint8_t * addr )

inlinestatic

Generate a random Ethernet address that is locally administered and not multicast.

Parameters

addr	A pointer to Ethernet address.

Definition at line 236 of file rte_ether.h.

static void ether_addr_copy	(	const struct ether_addr *	ea_from,
		struct ether_addr *	ea_to
	)

inlinestatic

Fast copy an Ethernet address.

Parameters

ea_from	A pointer to a ether_addr structure holding the Ethernet address to copy.
ea_to	A pointer to a ether_addr structure where to copy the Ethernet address.

Definition at line 254 of file rte_ether.h.

static void ether_format_addr	(	char *	buf,
		uint16_t	size,
		const struct ether_addr *	eth_addr
	)

inlinestatic

Format 48bits Ethernet address in pattern xx:xx:xx:xx:xx:xx.

Parameters

buf	A pointer to buffer contains the formatted MAC address.
size	The format buffer size.
eth_addr	A pointer to a ether_addr structure.

Definition at line 284 of file rte_ether.h.

static int rte_vlan_strip ( struct rte_mbuf * m )

inlinestatic

Extract VLAN tag information into mbuf

Software version of VLAN stripping

Parameters

m	The packet mbuf.

Returns

0: Success
1: not a vlan packet

Definition at line 350 of file rte_ether.h.

static int rte_vlan_insert ( struct rte_mbuf ** m )

inlinestatic

Insert VLAN tag into mbuf.

Software version of VLAN unstripping

Parameters

m	The packet mbuf.

Returns

0: On success -EPERM: mbuf is is shared overwriting would be unsafe -ENOSPC: not enough headroom in mbuf

Definition at line 381 of file rte_ether.h.

Data Structures

Macros

Functions

Detailed Description

Macro Definition Documentation

Function Documentation