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rte_ether.h(3) Library Functions Manual rte_ether.h(3)

NAME

rte_ether.h

SYNOPSIS

#include <assert.h>
#include <stdalign.h>
#include <stdint.h>
#include <stdio.h>
#include <rte_random.h>
#include <rte_mbuf.h>
#include <rte_byteorder.h>

Data Structures


struct rte_ether_hdr
struct rte_vlan_hdr

Macros


#define RTE_ETHER_ADDR_LEN 6
#define RTE_ETHER_TYPE_LEN 2
#define RTE_ETHER_CRC_LEN 4
#define RTE_ETHER_HDR_LEN
#define RTE_ETHER_MIN_LEN 64
#define RTE_ETHER_MAX_LEN 1518
#define RTE_ETHER_MTU
#define RTE_VLAN_HLEN 4
#define RTE_ETHER_MAX_VLAN_FRAME_LEN (RTE_ETHER_MAX_LEN + RTE_VLAN_HLEN)
#define RTE_ETHER_MAX_JUMBO_FRAME_LEN 0x3F00
#define RTE_ETHER_MAX_VLAN_ID 4095
#define RTE_ETHER_MIN_MTU 68
#define RTE_ETHER_LOCAL_ADMIN_ADDR 0x02
#define RTE_ETHER_GROUP_ADDR 0x01
#define RTE_ETHER_ADDR_PRT_FMT '%02X:%02X:%02X:%02X:%02X:%02X'
#define RTE_ETHER_ADDR_BYTES(mac_addrs)
#define RTE_ETHER_TYPE_IPV4 0x0800
#define RTE_ETHER_TYPE_IPV6 0x86DD
#define RTE_ETHER_TYPE_ARP 0x0806
#define RTE_ETHER_TYPE_RARP 0x8035
#define RTE_ETHER_TYPE_VLAN 0x8100
#define RTE_ETHER_TYPE_QINQ 0x88A8
#define RTE_ETHER_TYPE_QINQ1 0x9100
#define RTE_ETHER_TYPE_QINQ2 0x9200
#define RTE_ETHER_TYPE_QINQ3 0x9300
#define RTE_ETHER_TYPE_PPPOE_DISCOVERY 0x8863
#define RTE_ETHER_TYPE_PPPOE_SESSION 0x8864
#define RTE_ETHER_TYPE_ETAG 0x893F
#define RTE_ETHER_TYPE_1588 0x88F7
#define RTE_ETHER_TYPE_SLOW 0x8809
#define RTE_ETHER_TYPE_TEB 0x6558
#define RTE_ETHER_TYPE_LLDP 0x88CC
#define RTE_ETHER_TYPE_MPLS 0x8847
#define RTE_ETHER_TYPE_MPLSM 0x8848
#define RTE_ETHER_TYPE_ECPRI 0xAEFE

Functions


struct __rte_aligned (2) rte_ether_addr
static int rte_is_same_ether_addr (const struct rte_ether_addr *ea1, const struct rte_ether_addr *ea2)
static int rte_is_zero_ether_addr (const struct rte_ether_addr *ea)
static int rte_is_unicast_ether_addr (const struct rte_ether_addr *ea)
static int rte_is_multicast_ether_addr (const struct rte_ether_addr *ea)
static int rte_is_broadcast_ether_addr (const struct rte_ether_addr *ea)
static int rte_is_universal_ether_addr (const struct rte_ether_addr *ea)
static int rte_is_local_admin_ether_addr (const struct rte_ether_addr *ea)
static int rte_is_valid_assigned_ether_addr (const struct rte_ether_addr *ea)
void rte_eth_random_addr (uint8_t *addr)
static void rte_ether_addr_copy (const struct rte_ether_addr *__restrict ea_from, struct rte_ether_addr *__restrict ea_to)
void rte_ether_format_addr (char *buf, uint16_t size, const struct rte_ether_addr *eth_addr)
int rte_ether_unformat_addr (const char *str, struct rte_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 RTE_ETHER_ADDR_LEN 6

Length of Ethernet address.

Definition at line 27 of file rte_ether.h.

#define RTE_ETHER_TYPE_LEN 2

Length of Ethernet type field.

Definition at line 28 of file rte_ether.h.

#define RTE_ETHER_CRC_LEN 4

Length of Ethernet CRC.

Definition at line 29 of file rte_ether.h.

#define RTE_ETHER_HDR_LEN

Value:.PP



    (RTE_ETHER_ADDR_LEN * 2 + \


        RTE_ETHER_TYPE_LEN)

Length of Ethernet header.

Definition at line 32 of file rte_ether.h.

#define RTE_ETHER_MIN_LEN 64

Minimum frame len, including CRC.

Definition at line 33 of file rte_ether.h.

#define RTE_ETHER_MAX_LEN 1518

Maximum frame len, including CRC.

Definition at line 34 of file rte_ether.h.

#define RTE_ETHER_MTU

Value:.PP



    (RTE_ETHER_MAX_LEN - RTE_ETHER_HDR_LEN - \


        RTE_ETHER_CRC_LEN)

Ethernet MTU.

Definition at line 37 of file rte_ether.h.

#define RTE_VLAN_HLEN 4

VLAN (IEEE 802.1Q) header length.

Definition at line 39 of file rte_ether.h.

#define RTE_ETHER_MAX_VLAN_FRAME_LEN (RTE_ETHER_MAX_LEN + RTE_VLAN_HLEN)

Maximum VLAN frame length (excluding QinQ), including CRC.

Definition at line 41 of file rte_ether.h.

#define RTE_ETHER_MAX_JUMBO_FRAME_LEN 0x3F00

Maximum Jumbo frame length, including CRC.

Definition at line 45 of file rte_ether.h.

#define RTE_ETHER_MAX_VLAN_ID 4095

Maximum VLAN ID.

Definition at line 47 of file rte_ether.h.

#define RTE_ETHER_MIN_MTU 68

Minimum MTU for IPv4 packets, see RFC 791.

Definition at line 49 of file rte_ether.h.

#define RTE_ETHER_LOCAL_ADMIN_ADDR 0x02

Locally assigned Eth. address.

Definition at line 85 of file rte_ether.h.

#define RTE_ETHER_GROUP_ADDR 0x01

Multicast or broadcast Eth. address.

Definition at line 86 of file rte_ether.h.

#define RTE_ETHER_ADDR_PRT_FMT '%02X:%02X:%02X:%02X:%02X:%02X'

Macro to print six-bytes of MAC address in hex format

Definition at line 248 of file rte_ether.h.

#define RTE_ETHER_ADDR_BYTES(mac_addrs)

Value:.PP



                     ((mac_addrs)->addr_bytes[0]), \


                     ((mac_addrs)->addr_bytes[1]), \


                     ((mac_addrs)->addr_bytes[2]), \


                     ((mac_addrs)->addr_bytes[3]), \


                     ((mac_addrs)->addr_bytes[4]), \


                     ((mac_addrs)->addr_bytes[5])

Macro to extract the MAC address bytes from rte_ether_addr struct

Definition at line 252 of file rte_ether.h.

#define RTE_ETHER_TYPE_IPV4 0x0800

IPv4 Protocol.

Definition at line 329 of file rte_ether.h.

#define RTE_ETHER_TYPE_IPV6 0x86DD

IPv6 Protocol.

Definition at line 330 of file rte_ether.h.

#define RTE_ETHER_TYPE_ARP 0x0806

Arp Protocol.

Definition at line 331 of file rte_ether.h.

#define RTE_ETHER_TYPE_RARP 0x8035

Reverse Arp Protocol.

Definition at line 332 of file rte_ether.h.

#define RTE_ETHER_TYPE_VLAN 0x8100

IEEE 802.1Q VLAN tagging.

Definition at line 333 of file rte_ether.h.

#define RTE_ETHER_TYPE_QINQ 0x88A8

IEEE 802.1ad QinQ tagging.

Definition at line 334 of file rte_ether.h.

#define RTE_ETHER_TYPE_QINQ1 0x9100

Deprecated QinQ VLAN.

Definition at line 335 of file rte_ether.h.

#define RTE_ETHER_TYPE_QINQ2 0x9200

Deprecated QinQ VLAN.

Definition at line 336 of file rte_ether.h.

#define RTE_ETHER_TYPE_QINQ3 0x9300

Deprecated QinQ VLAN.

Definition at line 337 of file rte_ether.h.

#define RTE_ETHER_TYPE_PPPOE_DISCOVERY 0x8863

PPPoE Discovery Stage.

Definition at line 338 of file rte_ether.h.

#define RTE_ETHER_TYPE_PPPOE_SESSION 0x8864

PPPoE Session Stage.

Definition at line 339 of file rte_ether.h.

#define RTE_ETHER_TYPE_ETAG 0x893F

IEEE 802.1BR E-Tag.

Definition at line 340 of file rte_ether.h.

#define RTE_ETHER_TYPE_1588 0x88F7

IEEE 802.1AS 1588 Precise Time Protocol.

Definition at line 342 of file rte_ether.h.

#define RTE_ETHER_TYPE_SLOW 0x8809

Slow protocols (LACP and Marker).

Definition at line 343 of file rte_ether.h.

#define RTE_ETHER_TYPE_TEB 0x6558

Transparent Ethernet Bridging.

Definition at line 344 of file rte_ether.h.

#define RTE_ETHER_TYPE_LLDP 0x88CC

LLDP Protocol.

Definition at line 345 of file rte_ether.h.

#define RTE_ETHER_TYPE_MPLS 0x8847

MPLS ethertype.

Definition at line 346 of file rte_ether.h.

#define RTE_ETHER_TYPE_MPLSM 0x8848

MPLS multicast ethertype.

Definition at line 347 of file rte_ether.h.

#define RTE_ETHER_TYPE_ECPRI 0xAEFE

eCPRI ethertype (.1Q supported).

Definition at line 348 of file rte_ether.h.

Function Documentation

struct __rte_aligned (2)

Ethernet address: A universally administered address is uniquely assigned to a device by its manufacturer. The first three octets (in transmission order) contain the Organizationally Unique Identifier (OUI). The following three (MAC-48 and EUI-48) octets are assigned by that organization with the only constraint of uniqueness. A locally administered address is assigned to a device by a network administrator and does not contain OUIs. See http://standards.ieee.org/regauth/groupmac/tutorial.html < Addr bytes in tx order

Definition at line 1 of file rte_ether.h.

static int rte_is_same_ether_addr (const struct rte_ether_addr * ea1, const struct rte_ether_addr * ea2) [inline], [static]

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 102 of file rte_ether.h.

static int rte_is_zero_ether_addr (const struct rte_ether_addr * ea) [inline], [static]

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 121 of file rte_ether.h.

static int rte_is_unicast_ether_addr (const struct rte_ether_addr * ea) [inline], [static]

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 138 of file rte_ether.h.

static int rte_is_multicast_ether_addr (const struct rte_ether_addr * ea) [inline], [static]

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 153 of file rte_ether.h.

static int rte_is_broadcast_ether_addr (const struct rte_ether_addr * ea) [inline], [static]

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 168 of file rte_ether.h.

static int rte_is_universal_ether_addr (const struct rte_ether_addr * ea) [inline], [static]

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 185 of file rte_ether.h.

static int rte_is_local_admin_ether_addr (const struct rte_ether_addr * ea) [inline], [static]

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 200 of file rte_ether.h.

static int rte_is_valid_assigned_ether_addr (const struct rte_ether_addr * ea) [inline], [static]

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 216 of file rte_ether.h.

void rte_eth_random_addr (uint8_t * addr)

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

Parameters

addr A pointer to Ethernet address.

static void rte_ether_addr_copy (const struct rte_ether_addr *__restrict ea_from, struct rte_ether_addr *__restrict ea_to) [inline], [static]

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 239 of file rte_ether.h.

void rte_ether_format_addr (char * buf, uint16_t size, const struct rte_ether_addr * eth_addr)

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.

int rte_ether_unformat_addr (const char * str, struct rte_ether_addr * eth_addr)

Convert string with Ethernet address to an ether_addr.

Parameters

str A pointer to buffer contains the formatted MAC address. Accepts either byte or word format separated by colon, hyphen or period.

The example formats are: XX:XX:XX:XX:XX:XX - Canonical form XX-XX-XX-XX-XX-XX - Windows and IEEE 802 XXXX.XXXX.XXXX - Cisco where XX is a hex digit: 0-9, a-f, or A-F. In the byte format, leading zeros are optional.

Parameters

eth_addr A pointer to a ether_addr structure.

Returns

0 if successful -1 and sets rte_errno if invalid string

static int rte_vlan_strip (struct rte_mbuf * m) [inline], [static]

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 361 of file rte_ether.h.

static int rte_vlan_insert (struct rte_mbuf ** m) [inline], [static]

Insert VLAN tag into mbuf.

Software version of VLAN unstripping

Parameters

m The packet mbuf.

Returns

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

Definition at line 393 of file rte_ether.h.

Author

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