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/*
server/ip/gen/ip_hdr.h
*/
#ifndef __SERVER__IP__GEN__HDR_H__
#define __SERVER__IP__GEN__HDR_H__
typedef struct ip_hdr
{
u8_t ih_vers_ihl,
ih_tos;
u16_t ih_length,
ih_id,
ih_flags_fragoff;
u8_t ih_ttl,
ih_proto;
u16_t ih_hdr_chk;
ipaddr_t ih_src,
ih_dst;
} ip_hdr_t;
#define IH_IHL_MASK 0xf
#define IH_VERSION_MASK 0xf
#define IH_FRAGOFF_MASK 0x1fff
#define IH_MORE_FRAGS 0x2000
#define IH_DONT_FRAG 0x4000
#define IH_FLAGS_UNUSED 0x8000
#define IP_OPT_COPIED 0x80
#define IP_OPT_NUMBER 0x1f
#define IP_OPT_EOL 0x00 /* End of Options List, RFC-791 */
#define IP_OPT_NOP 0x01 /* No Operation, RFC-791 */
#define IP_OPT_RR 0x07 /* Record Route, RFC-791 */
#define IP_OPT_TS 0x44 /* Timestamp, RFC-791 */
#define IP_OPT_SEC 0x82 /* Security, RFC-1108 */
#define IP_OPT_LSRR 0x83 /* Loose Source Route, RFC-791 */
#define IP_OPT_SSRR 0x89 /* Strict Source Route, RFC-791 */
#define IP_OPT_RTRALT 0x94 /* Router Alert, RFC-2113 */
#define IP_OPT_RR_MIN 4
#endif /* __SERVER__IP__GEN__HDR_H__ */
/*
* $PchId: ip_hdr.h,v 1.5 2002/06/10 07:11:46 philip Exp $
*/
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