diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 17:13:01 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 17:13:01 +0000 |
commit | 7adcb5b605cc1328a3084c334f4697ec9771936c (patch) | |
tree | 03e681bfda053978ba896745828e09cb056ad156 /print-bt.c | |
parent | Initial commit. (diff) | |
download | tcpdump-upstream/4.99.4.tar.xz tcpdump-upstream/4.99.4.zip |
Adding upstream version 4.99.4.upstream/4.99.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | print-bt.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/print-bt.c b/print-bt.c new file mode 100644 index 0000000..46aa278 --- /dev/null +++ b/print-bt.c @@ -0,0 +1,71 @@ +/* + * Copyright (c) 2007 + * paolo.abeni@email.it All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that: (1) source code distributions + * retain the above copyright notice and this paragraph in its entirety, (2) + * distributions including binary code include the above copyright notice and + * this paragraph in its entirety in the documentation or other materials + * provided with the distribution, and (3) all advertising materials mentioning + * features or use of this software display the following acknowledgement: + * ``This product includes software developed by Paolo Abeni.'' + * The name of author may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +/* \summary: Bluetooth printer */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "netdissect-stdinc.h" + +#define ND_LONGJMP_FROM_TCHECK +#include "netdissect.h" +#include "extract.h" + +#ifdef DLT_BLUETOOTH_HCI_H4_WITH_PHDR + +/* + * Header prepended by libpcap to each bluetooth h4 frame; + * the direction field is in network byte order. + */ +typedef struct _bluetooth_h4_header { + nd_uint32_t direction; /* if first bit is set direction is incoming */ +} bluetooth_h4_header; + +#define BT_HDRLEN sizeof(bluetooth_h4_header) + +/* + * This is the top level routine of the printer. 'p' points + * to the bluetooth header of the packet, 'h->ts' is the timestamp, + * 'h->len' is the length of the packet off the wire, and 'h->caplen' + * is the number of bytes actually captured. + */ +void +bt_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p) +{ + u_int length = h->len; + u_int caplen = h->caplen; + const bluetooth_h4_header *hdr = (const bluetooth_h4_header *)p; + + ndo->ndo_protocol = "bluetooth"; + nd_print_protocol(ndo); + ND_TCHECK_LEN(p, BT_HDRLEN); + ndo->ndo_ll_hdr_len += BT_HDRLEN; + caplen -= BT_HDRLEN; + length -= BT_HDRLEN; + p += BT_HDRLEN; + if (ndo->ndo_eflag) + ND_PRINT(", hci length %u, direction %s", length, + (GET_BE_U_4(hdr->direction)&0x1) ? "in" : "out"); + + if (!ndo->ndo_suppress_default_print) + ND_DEFAULTPRINT(p, caplen); +} +#endif |