diff options
Diffstat (limited to 'src/include/ipxe')
| -rw-r--r-- | src/include/ipxe/if_arp.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/include/ipxe/if_arp.h b/src/include/ipxe/if_arp.h index 4eb1f80b7..9d7b03fe8 100644 --- a/src/include/ipxe/if_arp.h +++ b/src/include/ipxe/if_arp.h @@ -99,4 +99,14 @@ static inline void * arp_target_pa ( struct arphdr *arphdr ) { return ( arp_target_ha ( arphdr ) + arphdr->ar_hln ); } +/** ARP packet length + * + * @v arphdr ARP header + * @ret len Length (including header) + */ +static inline size_t arp_len ( struct arphdr *arphdr ) { + return ( sizeof ( *arphdr ) + + ( 2 * ( arphdr->ar_hln + arphdr->ar_pln ) ) ); +} + #endif /* _IPXE_IF_ARP_H */ |