2 * copyright (c) 2001-2009 Emil Mikulic.
4 * decode.h: packet decoding.
6 * You may use, modify and redistribute this file under the terms of the
7 * GNU General Public License version 2. (see COPYING.GPL)
11 #include <netinet/in_systm.h> /* n_time */
13 #include <netinet/in.h> /* for <netinet/ip.h> */
14 #include <netinet/ip.h> /* struct ip */
16 #include "hosts_db.h" /* addr46 */
19 #define FDDI_HDR_LEN 21
20 #define IP_HDR_LEN sizeof(struct ip)
21 #define IPV6_HDR_LEN sizeof(struct ip6_hdr)
22 #define TCP_HDR_LEN sizeof(struct tcphdr)
23 #define UDP_HDR_LEN sizeof(struct udphdr)
24 #define NULL_HDR_LEN 4
25 #define PPPOE_HDR_LEN 8
26 #define SLL_HDR_LEN 16
29 #ifndef ETHER_ADDR_LEN
30 #define ETHER_ADDR_LEN 6
39 const linkhdr_t
*getlinkhdr(int linktype
);
40 int getsnaplen(const linkhdr_t
*lh
);
41 char *ip_to_str(const struct addr46
*const ip
);
42 char *ip_to_str_af(const void *const addr
, sa_family_t af
);
45 /* Fields are in host byte order (except IPs) */
47 struct in_addr src_ip
;
48 struct in6_addr src_ip6
;
51 struct in_addr dest_ip
;
52 struct in6_addr dest_ip6
;
56 sa_family_t af
; /* AF_{UNSPEC, INET, INET6} */
57 uint8_t proto
; /* IPPROTO_{TCP, UDP, ICMP} */
58 uint8_t tcp_flags
; /* only for TCP */
59 uint16_t src_port
, dest_port
; /* only for TCP, UDP */
60 uint8_t src_mac
[ETHER_ADDR_LEN
],
61 dst_mac
[ETHER_ADDR_LEN
]; /* only for Ethernet */
64 /* vim:set ts=3 sw=3 tw=78 expandtab: */