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netinet/ip.h File Reference

Definitions for internet protocol version 4. More...


Data Structures

struct  ip
 Structure of an internet header. More...


Defines

#define IPVERSION   4
 IP protocol version.

#define IP_DF   0x4000
 Don't fragment flag.

#define IP_MF   0x2000
 More fragments flag.

#define IP_OFFMASK   0x1fff
 Mask for fragmenting bits.

#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_OPTVAL   0
 Option identifier offset.

#define IPOPT_OLEN   1
 Option length offset.

#define IPOPT_OFFSET   2
 Offset within option.

#define IPOPT_MINOFF   4
 Minimum offset within option.

#define MAXTTL   255
 Maximum time to live (seconds).

#define IPDEFTTL   64
 Default time to live.

#define IPFRAGTTL   60
 Time to live for fragments.

#define IPTTLDEC   1
 Subtracted from time to live when forwarding.


Typedefs

typedef ip IPHDR
 Internet header type.


Functions

int NutIpOutput (u_char proto, u_long dest, NETBUF *nb)
 Send IP datagram.

void NutIpInput (NUTDEVICE *dev, NETBUF *nb)
 Process incoming IP datagrams.


Detailed Description

Definitions for internet protocol version 4.

RFC 791.


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