build: add DESTDIR support
[netsniff-ng.git] / dissector.h
blobc86a51d6c0f62b77f9fcbb8798713ad64959bcdc
1 /*
2 * netsniff-ng - the packet sniffing beast
3 * Copyright 2009 - 2013 Daniel Borkmann.
4 * Subject to the GPL, version 2.
5 */
7 #ifndef DISSECTOR_H
8 #define DISSECTOR_H
10 #include <stdlib.h>
11 #include <stdint.h>
12 #include <sys/socket.h>
13 #include <linux/if_packet.h>
14 #include <linux/if.h>
16 #include "ring.h"
17 #include "tprintf.h"
18 #include "pcap_io.h"
19 #include "built_in.h"
21 #define PRINT_NORM 0
22 #define PRINT_LESS 1
23 #define PRINT_HEX 2
24 #define PRINT_ASCII 3
25 #define PRINT_HEX_ASCII 4
26 #define PRINT_NONE 5
28 extern char *if_indextoname(unsigned ifindex, char *ifname);
30 static const char * const packet_types[256] = {
31 [0 ... 255] = "?", /* Unknown */
32 [PACKET_HOST] = "<", /* Incoming */
33 [PACKET_BROADCAST] = "B", /* Broadcast */
34 [PACKET_MULTICAST] = "M", /* Multicast */
35 [PACKET_OTHERHOST] = "P", /* Promisc */
36 [PACKET_OUTGOING] = ">", /* Outgoing */
37 [PACKET_USER] = ">U", /* To Userspace */
38 [PACKET_KERNEL] = ">K", /* To Kernelspace */
41 static inline const char *__show_ts_source(uint32_t status)
43 if (status & TP_STATUS_TS_RAW_HARDWARE)
44 return "(raw hw ts)";
45 else if (status & TP_STATUS_TS_SYS_HARDWARE)
46 return "(sys hw ts)";
47 else if (status & TP_STATUS_TS_SOFTWARE)
48 return "(sw ts)";
49 else
50 return "";
53 static inline void __show_frame_hdr(struct sockaddr_ll *s_ll,
54 void *raw, int mode, bool v3)
56 char tmp[IFNAMSIZ];
57 union tpacket_uhdr hdr;
59 if (mode == PRINT_NONE)
60 return;
62 hdr.raw = raw;
63 switch (mode) {
64 case PRINT_LESS:
65 tprintf("%s %s %u",
66 packet_types[s_ll->sll_pkttype] ? : "?",
67 if_indextoname(s_ll->sll_ifindex, tmp) ? : "?",
68 v3 ? hdr.h3->tp_len : hdr.h2->tp_len);
69 break;
70 default:
71 tprintf("%s %s %u %us.%uns %s\n",
72 packet_types[s_ll->sll_pkttype] ? : "?",
73 if_indextoname(s_ll->sll_ifindex, tmp) ? : "?",
74 v3 ? hdr.h3->tp_len : hdr.h2->tp_len,
75 v3 ? hdr.h3->tp_sec : hdr.h2->tp_sec,
76 v3 ? hdr.h3->tp_nsec : hdr.h2->tp_nsec,
77 v3 ? "" : __show_ts_source(hdr.h2->tp_status));
78 break;
82 static inline void show_frame_hdr(struct frame_map *hdr, int mode)
84 __show_frame_hdr(&hdr->s_ll, &hdr->tp_h, mode, false);
87 extern void dissector_init_all(int fnttype);
88 extern void dissector_entry_point(uint8_t *packet, size_t len, int linktype, int mode);
89 extern void dissector_cleanup_all(void);
90 extern int dissector_set_print_type(void *ptr, int type);
92 #endif /* DISSECTOR_H */