ip.h File Reference

Go to the source code of this file.

Data Structures
struct	ip
struct	ip_timestamp
union	ip_timestamp::ipt_timestamp
struct	ip_timestamp::ipt_timestamp::ipt_ta
Defines
#define	IPVERSION   4
#define	IP_RF   0x8000 /* reserved fragment flag */
#define	IP_DF   0x4000 /* don't fragment flag */
#define	IP_MF   0x2000 /* more fragments flag */
#define	IP_OFFMASK   0x1fff /* mask for fragmenting bits */
#define	IP_MAXPACKET   65535 /* maximum packet size */
#define	IPTOS_LOWDELAY   0x10
#define	IPTOS_THROUGHPUT   0x08
#define	IPTOS_RELIABILITY   0x04
#define	IPTOS_MINCOST   0x02
#define	IPTOS_PREC_NETCONTROL   0xe0
#define	IPTOS_PREC_INTERNETCONTROL   0xc0
#define	IPTOS_PREC_CRITIC_ECP   0xa0
#define	IPTOS_PREC_FLASHOVERRIDE   0x80
#define	IPTOS_PREC_FLASH   0x60
#define	IPTOS_PREC_IMMEDIATE   0x40
#define	IPTOS_PREC_PRIORITY   0x20
#define	IPTOS_PREC_ROUTINE   0x00
#define	IPOPT_COPIED(o)   ((o)&0x80)
#define	IPOPT_CLASS(o)   ((o)&0x60)
#define	IPOPT_NUMBER(o)   ((o)&0x1f)
#define	IPOPT_CONTROL   0x00
#define	IPOPT_RESERVED1   0x20
#define	IPOPT_DEBMEAS   0x40
#define	IPOPT_RESERVED2   0x60
#define	IPOPT_EOL   0 /* end of option list */
#define	IPOPT_NOP   1 /* no operation */
#define	IPOPT_RR   7 /* record packet route */
#define	IPOPT_TS   68 /* timestamp */
#define	IPOPT_SECURITY   130 /* provide s,c,h,tcc */
#define	IPOPT_LSRR   131 /* loose source route */
#define	IPOPT_SATID   136 /* satnet id */
#define	IPOPT_SSRR   137 /* strict source route */
#define	IPOPT_RA   148 /* router alert */
#define	IPOPT_OPTVAL   0 /* option ID */
#define	IPOPT_OLEN   1 /* option length */
#define	IPOPT_OFFSET   2 /* offset within option */
#define	IPOPT_MINOFF   4 /* min value of above */
#define	IPOPT_TS_TSONLY   0 /* timestamps only */
#define	IPOPT_TS_TSANDADDR   1 /* timestamps and addresses */
#define	IPOPT_TS_PRESPEC   3 /* specified modules only */
#define	IPOPT_SECUR_UNCLASS   0x0000
#define	IPOPT_SECUR_CONFID   0xf135
#define	IPOPT_SECUR_EFTO   0x789a
#define	IPOPT_SECUR_MMMM   0xbc4d
#define	IPOPT_SECUR_RESTR   0xaf13
#define	IPOPT_SECUR_SECRET   0xd788
#define	IPOPT_SECUR_TOPSECRET   0x6bc5
#define	MAXTTL   255 /* maximum time to live (seconds) */
#define	IPDEFTTL   64 /* default ttl, from RFC 1340 */
#define	IPFRAGTTL   60 /* time to live for frags, slowhz */
#define	IPTTLDEC   1 /* subtracted when forwarding */
#define	IP_MSS   576 /* default maximum segment size */