xref: /netbsd-src/external/bsd/tcpdump/dist/print-bt.c (revision c2f76ff004a2cb67efe5b12d97bd3ef7fe89e18d)
1 /*
2  * Copyright (c) 2007
3  *	paolo.abeni@email.it  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that: (1) source code distributions
7  * retain the above copyright notice and this paragraph in its entirety, (2)
8  * distributions including binary code include the above copyright notice and
9  * this paragraph in its entirety in the documentation or other materials
10  * provided with the distribution, and (3) all advertising materials mentioning
11  * features or use of this software display the following acknowledgement:
12  * ``This product includes software developed by Paolo Abeni.''
13  * The name of author may not be used to endorse or promote products derived
14  * from this software without specific prior written permission.
15  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
16  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
17  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18  */
19 
20 #include <sys/cdefs.h>
21 #ifndef lint
22 #if 0
23 static const char rcsid[] _U_ =
24     "@(#) Header: /tcpdump/master/tcpdump/print-bt.c,v 1.2 2008-09-25 21:45:50 guy Exp";
25 #else
26 __RCSID("$NetBSD: print-bt.c,v 1.2 2010/12/05 05:11:30 christos Exp $");
27 #endif
28 #endif
29 
30 #ifdef HAVE_CONFIG_H
31 #include "config.h"
32 #endif
33 
34 #include <tcpdump-stdinc.h>
35 
36 #include <pcap.h>
37 #include <stdio.h>
38 #include <string.h>
39 
40 #include "interface.h"
41 #include "extract.h"
42 #include "addrtoname.h"
43 
44 #if defined(DLT_BLUETOOTH_HCI_H4_WITH_PHDR) && defined(HAVE_PCAP_BLUETOOTH_H)
45 #include <pcap/bluetooth.h>
46 
47 #define	BT_HDRLEN sizeof(pcap_bluetooth_h4_header)
48 /*
49  * This is the top level routine of the printer.  'p' points
50  * to the bluetooth header of the packet, 'h->ts' is the timestamp,
51  * 'h->len' is the length of the packet off the wire, and 'h->caplen'
52  * is the number of bytes actually captured.
53  */
54 u_int
55 bt_if_print(const struct pcap_pkthdr *h, const u_char *p)
56 {
57 	u_int length = h->len;
58 	u_int caplen = h->caplen;
59 	const pcap_bluetooth_h4_header* hdr = (const pcap_bluetooth_h4_header*)p;
60 
61 	if (caplen < BT_HDRLEN) {
62 		printf("[|bt]");
63 		return (BT_HDRLEN);
64 	}
65 	caplen -= BT_HDRLEN;
66 	length -= BT_HDRLEN;
67 	p += BT_HDRLEN;
68 	if (eflag)
69 		(void)printf("hci length %d, direction %s, ", length, (EXTRACT_32BITS(&hdr->direction)&0x1)?"in":"out");
70 
71 	if (!suppress_default_print)
72 		default_print(p, caplen);
73 
74 	return (BT_HDRLEN);
75 }
76 #endif
77 
78 
79 /*
80  * Local Variables:
81  * c-style: whitesmith
82  * c-basic-offset: 8
83  * End:
84  */
85