1a5779b6eSRui Paulo /* 2a5779b6eSRui Paulo * Copyright (c) 2007 3a5779b6eSRui Paulo * paolo.abeni@email.it All rights reserved. 4a5779b6eSRui Paulo * 5a5779b6eSRui Paulo * Redistribution and use in source and binary forms, with or without 6a5779b6eSRui Paulo * modification, are permitted provided that: (1) source code distributions 7a5779b6eSRui Paulo * retain the above copyright notice and this paragraph in its entirety, (2) 8a5779b6eSRui Paulo * distributions including binary code include the above copyright notice and 9a5779b6eSRui Paulo * this paragraph in its entirety in the documentation or other materials 10a5779b6eSRui Paulo * provided with the distribution, and (3) all advertising materials mentioning 11a5779b6eSRui Paulo * features or use of this software display the following acknowledgement: 12a5779b6eSRui Paulo * ``This product includes software developed by Paolo Abeni.'' 13a5779b6eSRui Paulo * The name of author may not be used to endorse or promote products derived 14a5779b6eSRui Paulo * from this software without specific prior written permission. 15a5779b6eSRui Paulo * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 16a5779b6eSRui Paulo * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 17a5779b6eSRui Paulo * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 18a5779b6eSRui Paulo */ 19a5779b6eSRui Paulo 203340d773SGleb Smirnoff /* \summary: Bluetooth printer */ 213340d773SGleb Smirnoff 22*ee67461eSJoseph Mingrone #include <config.h> 23a5779b6eSRui Paulo 24*ee67461eSJoseph Mingrone #include "netdissect-stdinc.h" 25a5779b6eSRui Paulo 26*ee67461eSJoseph Mingrone #define ND_LONGJMP_FROM_TCHECK 273340d773SGleb Smirnoff #include "netdissect.h" 2827df3f5dSRui Paulo #include "extract.h" 29a5779b6eSRui Paulo 30*ee67461eSJoseph Mingrone #ifdef DLT_BLUETOOTH_HCI_H4_WITH_PHDR 31a5779b6eSRui Paulo 32*ee67461eSJoseph Mingrone /* 33*ee67461eSJoseph Mingrone * Header prepended by libpcap to each bluetooth h4 frame; 34*ee67461eSJoseph Mingrone * the direction field is in network byte order. 35*ee67461eSJoseph Mingrone */ 36*ee67461eSJoseph Mingrone typedef struct _bluetooth_h4_header { 37*ee67461eSJoseph Mingrone nd_uint32_t direction; /* if first bit is set direction is incoming */ 38*ee67461eSJoseph Mingrone } bluetooth_h4_header; 39*ee67461eSJoseph Mingrone 40*ee67461eSJoseph Mingrone #define BT_HDRLEN sizeof(bluetooth_h4_header) 41*ee67461eSJoseph Mingrone 42a5779b6eSRui Paulo /* 43a5779b6eSRui Paulo * This is the top level routine of the printer. 'p' points 44a5779b6eSRui Paulo * to the bluetooth header of the packet, 'h->ts' is the timestamp, 45a5779b6eSRui Paulo * 'h->len' is the length of the packet off the wire, and 'h->caplen' 46a5779b6eSRui Paulo * is the number of bytes actually captured. 47a5779b6eSRui Paulo */ 48*ee67461eSJoseph Mingrone void 493c602fabSXin LI bt_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p) 50a5779b6eSRui Paulo { 51a5779b6eSRui Paulo u_int length = h->len; 52a5779b6eSRui Paulo u_int caplen = h->caplen; 53*ee67461eSJoseph Mingrone const bluetooth_h4_header *hdr = (const bluetooth_h4_header *)p; 54a5779b6eSRui Paulo 55*ee67461eSJoseph Mingrone ndo->ndo_protocol = "bluetooth"; 56*ee67461eSJoseph Mingrone nd_print_protocol(ndo); 57*ee67461eSJoseph Mingrone ND_TCHECK_LEN(p, BT_HDRLEN); 58*ee67461eSJoseph Mingrone ndo->ndo_ll_hdr_len += BT_HDRLEN; 59a5779b6eSRui Paulo caplen -= BT_HDRLEN; 60a5779b6eSRui Paulo length -= BT_HDRLEN; 61a5779b6eSRui Paulo p += BT_HDRLEN; 623c602fabSXin LI if (ndo->ndo_eflag) 63*ee67461eSJoseph Mingrone ND_PRINT(", hci length %u, direction %s", length, 64*ee67461eSJoseph Mingrone (GET_BE_U_4(hdr->direction)&0x1) ? "in" : "out"); 65a5779b6eSRui Paulo 663c602fabSXin LI if (!ndo->ndo_suppress_default_print) 673c602fabSXin LI ND_DEFAULTPRINT(p, caplen); 68a5779b6eSRui Paulo } 69a5779b6eSRui Paulo #endif 70