---
name: "rte_security_macsec_sa"
section: "3"
platform: "linux"
package: "dpdk-doc"
version: "24.11.4-0+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/rte_security_macsec_sa"
---

# rte\_security\_macsec\_sa(3)

## NAME

rte\_security\_macsec\_sa

## SYNOPSIS

`#include <rte_security.h>`

### Data Fields

enum **rte\_security\_macsec\_direction** **dir**\
 struct {\
    const uint8\_t \* **data**\
    uint16\_t **length**\
 } **key**\
 uint8\_t **salt** \[**RTE\_SECURITY\_MACSEC\_SALT\_LEN**\]\
 uint8\_t **an**: 2\
 uint32\_t **ssci**\
 uint32\_t **xpn**\
 uint32\_t **next\_pn**\

## Detailed Description

MACsec secure association (SA) configuration structure.

Definition at line **352** of file **rte\_security.h**.

## Field Documentation

### enum rte\_security\_macsec\_direction dir

Direction of SA

Definition at line **354** of file **rte\_security.h**.

### const uint8\_t\* data

pointer to key data

Definition at line **357** of file **rte\_security.h**.

### uint16\_t length

key length in bytes

Definition at line **358** of file **rte\_security.h**.

### struct { ... } key

MACsec SA key for AES-GCM 128/256

### uint8\_t salt\[RTE\_SECURITY\_MACSEC\_SALT\_LEN\]

96-bit value distributed by key agreement protocol

Definition at line **361** of file **rte\_security.h**.

### uint8\_t an

Association number to be used

Definition at line **363** of file **rte\_security.h**.

### uint32\_t ssci

Short Secure Channel Identifier, to be used for XPN cases

Definition at line **365** of file **rte\_security.h**.

### uint32\_t xpn

Extended packet number

Definition at line **367** of file **rte\_security.h**.

### uint32\_t next\_pn

Packet number expected/ to be used for next packet of this SA

Definition at line **369** of file **rte\_security.h**.

## Author

Generated automatically by Doxygen for DPDK from the source code.