ARP.hpp

Go to the documentation of this file.

#ifndef DPDKLIBS_INCLUDE_DPDKLIBS_ARP_ARP_HPP_
#define DPDKLIBS_INCLUDE_DPDKLIBS_ARP_ARP_HPP_
 
#include "dpdklibs/udp/Utils.hpp"
#include <cstdint>
#include <rte_mbuf.h>
 
namespace dunedaq {
namespace dpdklibs {
namespace arp {
 
// RARP and ARP opcodes
enum
{
  ARP_REQUEST = 1,
  ARP_REPLY = 2,
  RARP_REQUEST = 3,
  RARP_REPLY = 4,
  GRATUITOUS_ARP = 5
};
 
// Queue flags
enum
{
  CLEAR_FAST_ALLOC_FLAG = 0x00000001, // < Clear the TX fast alloc flag
  DO_TX_FLUSH = 0x00000002            // Do a TX Flush by sending all of the pkts in the queue
};
 
// ethSwap(u16_t * to, u16_t * from) - Swap two 16 bit values
inline void
uint16Swap(void* t, void* f)
{
  uint16_t* d = (uint16_t*)t;
  uint16_t* s = (uint16_t*)f;
  uint16_t v;
  v = *d;
  *d = *s;
  *s = v;
}
 
// ethAddrSwap( u16_t * to, u16_t * from ) - Swap two ethernet addresses
inline void
ethAddrSwap(void* t, void* f)
{
  uint16_t* d = (uint16_t*)t;
  uint16_t* s = (uint16_t*)f;
  uint16Swap(d++, s++);
  uint16Swap(d++, s++);
  uint16Swap(d, s);
}
 
// inetAddrSwap( void * t, void * f ) - Swap two IPv4 addresses
inline void
inetAddrSwap(void* t, void* f)
{
  uint32_t* d = (uint32_t*)t;
  uint32_t* s = (uint32_t*)f;
  uint32_t v;
  v = *d;
  *d = *s;
  *s = v;
}
 
/* inetAddrCopy( void * t, void * f ) - Copy IPv4 address */
inline void
inetAddrCopy(void* t, void* f)
{
  uint32_t* d = (uint32_t*)t;
  uint32_t* s = (uint32_t*)f;
 
  *d = *s;
}
 
// Send GARP
void
pktgen_send_garp(struct rte_mbuf* m, uint32_t port_id, rte_be32_t binary_ip_address);
 
// Reply to ARP
void
pktgen_process_arp(struct rte_mbuf* m, uint32_t pid, rte_be32_t binary_ip_address);
 
} // namespace arp
} // namespace dpdklibs
} // namespace dunedaq
 
#endif // DPDKLIBS_INCLUDE_DPDKLIBS_ARP_ARP_HPP_