Migration from 'in_addr_t' to 'struct addr46'.
[darkstat] / decode.h
1 /* darkstat 3
2 * copyright (c) 2001-2009 Emil Mikulic.
3 *
4 * decode.h: packet decoding.
5 *
6 * You may use, modify and redistribute this file under the terms of the
7 * GNU General Public License version 2. (see COPYING.GPL)
8 */
9
10 #include <pcap.h>
11 #include <netinet/in_systm.h> /* n_time */
12 #define __USE_GNU 1
13 #include <netinet/in.h> /* for <netinet/ip.h> */
14 #include <netinet/ip.h> /* struct ip */
15
16 #include "hosts_db.h" /* addr46 */
17
18 #define PPP_HDR_LEN 4
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
27 #define RAW_HDR_LEN 0
28
29 #ifndef ETHER_ADDR_LEN
30 #define ETHER_ADDR_LEN 6
31 #endif
32
33 typedef struct {
34 int linktype;
35 unsigned int hdrlen;
36 pcap_handler handler;
37 } linkhdr_t;
38
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);
43
44 typedef struct {
45 /* Fields are in host byte order (except IPs) */
46 union {
47 struct in_addr src_ip;
48 struct in6_addr src_ip6;
49 };
50 union {
51 struct in_addr dest_ip;
52 struct in6_addr dest_ip6;
53 };
54 time_t time;
55 uint16_t len;
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 */
62 } pktsummary;
63
64 /* vim:set ts=3 sw=3 tw=78 expandtab: */