xref: /freebsd/contrib/tcpdump/print-bt.c (revision 8d20be1e22095c27faf8fe8b2f0d089739cc742e)
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 #ifndef lint
21 static const char rcsid[] _U_ =
22     "@(#) $Header: /tcpdump/master/tcpdump/print-bt.c,v 1.2 2008-09-25 21:45:50 guy Exp $";
23 #endif
24 
25 #ifdef HAVE_CONFIG_H
26 #include "config.h"
27 #endif
28 
29 #include <tcpdump-stdinc.h>
30 
31 #include <pcap.h>
32 #include <stdio.h>
33 #include <string.h>
34 
35 #include "interface.h"
36 #include "extract.h"
37 #include "addrtoname.h"
38 
39 #if defined(DLT_BLUETOOTH_HCI_H4_WITH_PHDR) && defined(HAVE_PCAP_BLUETOOTH_H)
40 #include <pcap/bluetooth.h>
41 
42 #define	BT_HDRLEN sizeof(pcap_bluetooth_h4_header)
43 /*
44  * This is the top level routine of the printer.  'p' points
45  * to the bluetooth header of the packet, 'h->ts' is the timestamp,
46  * 'h->len' is the length of the packet off the wire, and 'h->caplen'
47  * is the number of bytes actually captured.
48  */
49 u_int
50 bt_if_print(const struct pcap_pkthdr *h, const u_char *p)
51 {
52 	u_int length = h->len;
53 	u_int caplen = h->caplen;
54 	const pcap_bluetooth_h4_header* hdr = (const pcap_bluetooth_h4_header*)p;
55 
56 	if (caplen < BT_HDRLEN) {
57 		printf("[|bt]");
58 		return (BT_HDRLEN);
59 	}
60 	caplen -= BT_HDRLEN;
61 	length -= BT_HDRLEN;
62 	p += BT_HDRLEN;
63 	if (eflag)
64 		(void)printf("hci length %d, direction %s, ", length, (EXTRACT_32BITS(&hdr->direction)&0x1)?"in":"out");
65 
66 	if (!suppress_default_print)
67 		default_print(p, caplen);
68 
69 	return (BT_HDRLEN);
70 }
71 #endif
72 
73 
74 /*
75  * Local Variables:
76  * c-style: whitesmith
77  * c-basic-offset: 8
78  * End:
79  */
80