#ifndef TCPDUMP_IP_H
#define TCPDUMP_IP_H
+#include "tcpdump-stdinc.h"
+
/*
* Definitions for internet protocol version 4.
* Per RFC 791, September 1981.
* against negative integers quite easily, and fail in subtle ways.
*/
struct ip {
- uint8_t ip_vhl; /* header length, version */
+ uint8_t ip_vhl; /* header length, version */
#define IP_V(ip) (((ip)->ip_vhl & 0xf0) >> 4)
#define IP_HL(ip) ((ip)->ip_vhl & 0x0f)
- uint8_t ip_tos; /* type of service */
+ uint8_t ip_tos; /* type of service */
uint16_t ip_len; /* total length */
uint16_t ip_id; /* identification */
uint16_t ip_off; /* fragment offset field */
#define IP_DF 0x4000 /* dont fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
- uint8_t ip_ttl; /* time to live */
- uint8_t ip_p; /* protocol */
+ uint8_t ip_ttl; /* time to live */
+ uint8_t ip_p; /* protocol */
uint16_t ip_sum; /* checksum */
struct in_addr ip_src,ip_dst; /* source and dest address */
} UNALIGNED;
* Time stamp option structure.
*/
struct ip_timestamp {
- uint8_t ipt_code; /* IPOPT_TS */
- uint8_t ipt_len; /* size of structure (variable) */
- uint8_t ipt_ptr; /* index of current entry */
- uint8_t ipt_oflwflg; /* flags, overflow counter */
+ uint8_t ipt_code; /* IPOPT_TS */
+ uint8_t ipt_len; /* size of structure (variable) */
+ uint8_t ipt_ptr; /* index of current entry */
+ uint8_t ipt_oflwflg; /* flags, overflow counter */
#define IPTS_OFLW(ip) (((ipt)->ipt_oflwflg & 0xf0) >> 4)
#define IPTS_FLG(ip) ((ipt)->ipt_oflwflg & 0x0f)
union ipt_timestamp {