1*05b00f60SXin Li /*
2*05b00f60SXin Li * Copyright (c) 2007
3*05b00f60SXin Li * [email protected] All rights reserved.
4*05b00f60SXin Li *
5*05b00f60SXin Li * Redistribution and use in source and binary forms, with or without
6*05b00f60SXin Li * modification, are permitted provided that: (1) source code distributions
7*05b00f60SXin Li * retain the above copyright notice and this paragraph in its entirety, (2)
8*05b00f60SXin Li * distributions including binary code include the above copyright notice and
9*05b00f60SXin Li * this paragraph in its entirety in the documentation or other materials
10*05b00f60SXin Li * provided with the distribution, and (3) all advertising materials mentioning
11*05b00f60SXin Li * features or use of this software display the following acknowledgement:
12*05b00f60SXin Li * ``This product includes software developed by Paolo Abeni.''
13*05b00f60SXin Li * The name of author may not be used to endorse or promote products derived
14*05b00f60SXin Li * from this software without specific prior written permission.
15*05b00f60SXin Li * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
16*05b00f60SXin Li * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
17*05b00f60SXin Li * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18*05b00f60SXin Li */
19*05b00f60SXin Li
20*05b00f60SXin Li /* \summary: Bluetooth printer */
21*05b00f60SXin Li
22*05b00f60SXin Li #ifdef HAVE_CONFIG_H
23*05b00f60SXin Li #include <config.h>
24*05b00f60SXin Li #endif
25*05b00f60SXin Li
26*05b00f60SXin Li #include "netdissect-stdinc.h"
27*05b00f60SXin Li
28*05b00f60SXin Li #define ND_LONGJMP_FROM_TCHECK
29*05b00f60SXin Li #include "netdissect.h"
30*05b00f60SXin Li #include "extract.h"
31*05b00f60SXin Li
32*05b00f60SXin Li #ifdef DLT_BLUETOOTH_HCI_H4_WITH_PHDR
33*05b00f60SXin Li
34*05b00f60SXin Li /*
35*05b00f60SXin Li * Header prepended by libpcap to each bluetooth h4 frame;
36*05b00f60SXin Li * the direction field is in network byte order.
37*05b00f60SXin Li */
38*05b00f60SXin Li typedef struct _bluetooth_h4_header {
39*05b00f60SXin Li nd_uint32_t direction; /* if first bit is set direction is incoming */
40*05b00f60SXin Li } bluetooth_h4_header;
41*05b00f60SXin Li
42*05b00f60SXin Li #define BT_HDRLEN sizeof(bluetooth_h4_header)
43*05b00f60SXin Li
44*05b00f60SXin Li /*
45*05b00f60SXin Li * This is the top level routine of the printer. 'p' points
46*05b00f60SXin Li * to the bluetooth header of the packet, 'h->ts' is the timestamp,
47*05b00f60SXin Li * 'h->len' is the length of the packet off the wire, and 'h->caplen'
48*05b00f60SXin Li * is the number of bytes actually captured.
49*05b00f60SXin Li */
50*05b00f60SXin Li void
bt_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)51*05b00f60SXin Li bt_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
52*05b00f60SXin Li {
53*05b00f60SXin Li u_int length = h->len;
54*05b00f60SXin Li u_int caplen = h->caplen;
55*05b00f60SXin Li const bluetooth_h4_header *hdr = (const bluetooth_h4_header *)p;
56*05b00f60SXin Li
57*05b00f60SXin Li ndo->ndo_protocol = "bluetooth";
58*05b00f60SXin Li nd_print_protocol(ndo);
59*05b00f60SXin Li ND_TCHECK_LEN(p, BT_HDRLEN);
60*05b00f60SXin Li ndo->ndo_ll_hdr_len += BT_HDRLEN;
61*05b00f60SXin Li caplen -= BT_HDRLEN;
62*05b00f60SXin Li length -= BT_HDRLEN;
63*05b00f60SXin Li p += BT_HDRLEN;
64*05b00f60SXin Li if (ndo->ndo_eflag)
65*05b00f60SXin Li ND_PRINT(", hci length %u, direction %s", length,
66*05b00f60SXin Li (GET_BE_U_4(hdr->direction)&0x1) ? "in" : "out");
67*05b00f60SXin Li
68*05b00f60SXin Li if (!ndo->ndo_suppress_default_print)
69*05b00f60SXin Li ND_DEFAULTPRINT(p, caplen);
70*05b00f60SXin Li }
71*05b00f60SXin Li #endif
72