#ifndef _GPXE_IP_H
#define _GPXE_IP_H

/** @file
 *
 * IP protocol
 *
 */

#include <ip.h>

/* IP constants */

#define IP_HLEN 	20
#define IP_VER		4
#define IP_MASK_VER	0xf0
#define IP_MASK_HLEN 	0x0f
#define IP_PSHLEN 	12

/* IP header defaults */
#define IP_TOS		0
#define IP_TTL		64

/* IP6 constants */

#define IP6_HLEN	38

struct pk_buff;
struct net_device;
struct net_protocol;

extern struct net_protocol ipv4_protocol;
extern struct net_protocol ipv6_protocol;

extern int add_ipv4_address ( struct net_device *netdev,
			      struct in_addr address, struct in_addr netmask,
			      struct in_addr gateway );
extern void del_ipv4_address ( struct net_device *netdev );

extern int ipv4_uip_tx ( struct pk_buff *pkb );

extern int ipv4_tx ( struct pk_buff *pkb, uint16_t trans_proto, struct in_addr *dest );
extern int ipv6_tx ( struct pk_buff *pkb, uint16_t trans_proto, struct in6_addr *dest );

extern void ipv4_rx ( struct pk_buff *pkb, struct net_device *netdev, const void *ll_source );
extern void ipv6_rx ( struct pk_buff *pkb, struct net_device *netdev, const void *ll_source );

#endif /* _GPXE_IP_H */