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      1 /*
      2  * Copyright (c) 2007
      3  *	paolo.abeni (at) 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