LCOM1920-T02G10

/*

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 $

 */