127bfbee1SPeter Avalos /*
227bfbee1SPeter Avalos * Copyright (c) 2007
327bfbee1SPeter Avalos * paolo.abeni@email.it All rights reserved.
427bfbee1SPeter Avalos *
527bfbee1SPeter Avalos * Redistribution and use in source and binary forms, with or without
627bfbee1SPeter Avalos * modification, are permitted provided that: (1) source code distributions
727bfbee1SPeter Avalos * retain the above copyright notice and this paragraph in its entirety, (2)
827bfbee1SPeter Avalos * distributions including binary code include the above copyright notice and
927bfbee1SPeter Avalos * this paragraph in its entirety in the documentation or other materials
1027bfbee1SPeter Avalos * provided with the distribution, and (3) all advertising materials mentioning
1127bfbee1SPeter Avalos * features or use of this software display the following acknowledgement:
1227bfbee1SPeter Avalos * ``This product includes software developed by Paolo Abeni.''
1327bfbee1SPeter Avalos * The name of author may not be used to endorse or promote products derived
1427bfbee1SPeter Avalos * from this software without specific prior written permission.
1527bfbee1SPeter Avalos * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
1627bfbee1SPeter Avalos * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
1727bfbee1SPeter Avalos * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
1827bfbee1SPeter Avalos */
1927bfbee1SPeter Avalos
20411677aeSAaron LI /* \summary: Bluetooth printer */
2127bfbee1SPeter Avalos
2227bfbee1SPeter Avalos #ifdef HAVE_CONFIG_H
23*ed775ee7SAntonio Huete Jimenez #include <config.h>
2427bfbee1SPeter Avalos #endif
2527bfbee1SPeter Avalos
26*ed775ee7SAntonio Huete Jimenez #include "netdissect-stdinc.h"
2727bfbee1SPeter Avalos
28*ed775ee7SAntonio Huete Jimenez #define ND_LONGJMP_FROM_TCHECK
29411677aeSAaron LI #include "netdissect.h"
3027bfbee1SPeter Avalos #include "extract.h"
3127bfbee1SPeter Avalos
32*ed775ee7SAntonio Huete Jimenez #ifdef DLT_BLUETOOTH_HCI_H4_WITH_PHDR
3327bfbee1SPeter Avalos
34*ed775ee7SAntonio Huete Jimenez /*
35*ed775ee7SAntonio Huete Jimenez * Header prepended by libpcap to each bluetooth h4 frame;
36*ed775ee7SAntonio Huete Jimenez * the direction field is in network byte order.
37*ed775ee7SAntonio Huete Jimenez */
38*ed775ee7SAntonio Huete Jimenez typedef struct _bluetooth_h4_header {
39*ed775ee7SAntonio Huete Jimenez nd_uint32_t direction; /* if first bit is set direction is incoming */
40*ed775ee7SAntonio Huete Jimenez } bluetooth_h4_header;
41*ed775ee7SAntonio Huete Jimenez
42*ed775ee7SAntonio Huete Jimenez #define BT_HDRLEN sizeof(bluetooth_h4_header)
43*ed775ee7SAntonio Huete Jimenez
4427bfbee1SPeter Avalos /*
4527bfbee1SPeter Avalos * This is the top level routine of the printer. 'p' points
4627bfbee1SPeter Avalos * to the bluetooth header of the packet, 'h->ts' is the timestamp,
4727bfbee1SPeter Avalos * 'h->len' is the length of the packet off the wire, and 'h->caplen'
4827bfbee1SPeter Avalos * is the number of bytes actually captured.
4927bfbee1SPeter Avalos */
50*ed775ee7SAntonio Huete Jimenez void
bt_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)51411677aeSAaron LI bt_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
5227bfbee1SPeter Avalos {
5327bfbee1SPeter Avalos u_int length = h->len;
5427bfbee1SPeter Avalos u_int caplen = h->caplen;
55*ed775ee7SAntonio Huete Jimenez const bluetooth_h4_header* hdr = (const bluetooth_h4_header*)p;
5627bfbee1SPeter Avalos
57*ed775ee7SAntonio Huete Jimenez ndo->ndo_protocol = "bluetooth";
58*ed775ee7SAntonio Huete Jimenez nd_print_protocol(ndo);
59*ed775ee7SAntonio Huete Jimenez ND_TCHECK_LEN(p, BT_HDRLEN);
60*ed775ee7SAntonio Huete Jimenez ndo->ndo_ll_hdr_len += BT_HDRLEN;
6127bfbee1SPeter Avalos caplen -= BT_HDRLEN;
6227bfbee1SPeter Avalos length -= BT_HDRLEN;
6327bfbee1SPeter Avalos p += BT_HDRLEN;
64411677aeSAaron LI if (ndo->ndo_eflag)
65*ed775ee7SAntonio Huete Jimenez ND_PRINT(", hci length %u, direction %s", length,
66*ed775ee7SAntonio Huete Jimenez (GET_BE_U_4(hdr->direction)&0x1) ? "in" : "out");
6727bfbee1SPeter Avalos
68411677aeSAaron LI if (!ndo->ndo_suppress_default_print)
69411677aeSAaron LI ND_DEFAULTPRINT(p, caplen);
7027bfbee1SPeter Avalos }
7127bfbee1SPeter Avalos #endif
72