mirror of https://github.com/dirtbags/fluffy.git
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
#ifndef __PCAP_H__
|
|
#define __PCAP_H__
|
|
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#define MAGIC 0xa1b2c3d4
|
|
#define MAXFRAME 9000
|
|
|
|
/*
|
|
* Described at http://www.tcpdump.org/linktypes.html
|
|
*/
|
|
#define LINKTYPE_ETHERNET 1
|
|
#define LINKTYPE_RAW 101
|
|
|
|
struct pcap_file {
|
|
FILE *f;
|
|
uint32_t linktype;
|
|
bool swap;
|
|
};
|
|
|
|
struct pcap_file_header {
|
|
uint32_t magic;
|
|
uint16_t version_major;
|
|
uint16_t version_minor;
|
|
int32_t thiszone; /* gmt to local correction */
|
|
uint32_t sigfigs; /* accuracy of timestamps */
|
|
int32_t snaplen; /* max length saved portion of each pkt */
|
|
int32_t linktype; /* data link type (LINKTYPE_*) */
|
|
};
|
|
|
|
struct pcap_pkthdr {
|
|
struct pcap_timeval {
|
|
uint32_t tv_sec;
|
|
uint32_t tv_usec;
|
|
} ts; /* time stamp */
|
|
uint32_t caplen; /* length of portion present */
|
|
uint32_t len; /* length this packet (off wire) */
|
|
};
|
|
|
|
#ifndef max
|
|
#define max(a, b) ((a)>(b)?(a):(b))
|
|
#endif
|
|
|
|
#ifndef min
|
|
#define min(a, b) ((a)<(b)?(a):(b))
|
|
#endif
|
|
|
|
#define bswap32(i) (((i & 0xff000000) >> 030) | \
|
|
((i & 0x00ff0000) >> 010) | \
|
|
((i & 0x0000ff00) << 010) | \
|
|
((i & 0x000000ff) << 030))
|
|
#define bswap16(i) (((i & 0xff00) >> 010) | \
|
|
((i & 0x00ff) << 010))
|
|
|
|
|
|
/*
|
|
* Debugging help
|
|
*/
|
|
#define DUMPf(fmt, args...) fprintf(stderr, "%s:%s:%d " fmt "\n", __FILE__, __FUNCTION__, __LINE__, ##args)
|
|
#define DUMP() DUMPf("")
|
|
#define DUMP_d(v) DUMPf("%s = %d", #v, v)
|
|
#define DUMP_u(v) DUMPf("%s = %u", #v, v)
|
|
#define DUMP_x(v) DUMPf("%s = 0x%x", #v, v)
|
|
#define DUMP_s(v) DUMPf("%s = %s", #v, v)
|
|
#define DUMP_c(v) DUMPf("%s = %c", #v, v)
|
|
#define DUMP_p(v) DUMPf("%s = %p", #v, v)
|
|
|
|
int pcap_open_in(struct pcap_file *ctx, FILE * f);
|
|
int pcap_open_out(struct pcap_file *ctx, FILE * f);
|
|
int pcap_read_pkthdr(struct pcap_file *ctx, struct pcap_pkthdr *hdr);
|
|
int pcap_write_pkthdr(struct pcap_file *ctx, struct pcap_pkthdr *hdr);
|
|
void pcap_close(struct pcap_file *ctx);
|
|
|
|
#endif /* __PCAP_H__ */
|