hcidump.c

bluetooth 开发程序bluez-hcidump-1.28

			}
		}
	}

	return fd;
}

static int open_socket(int dev, unsigned long flags)
{
	struct sockaddr_hci addr;
	struct hci_filter flt;
	struct hci_dev_info di;
	int sk, dd, opt;

	if (permcheck && dev != HCI_DEV_NONE) {
		dd = hci_open_dev(dev);
		if (dd < 0) {
			perror("Can't open device");
			exit(1);
		}

		if (hci_devinfo(dev, &di) < 0) {
			perror("Can't get device info");
			exit(1);
		}

		opt = hci_test_bit(HCI_RAW, &di.flags);
		if (ioctl(dd, HCISETRAW, opt) < 0) {
			if (errno == EACCES) {
				perror("Can't access device");
				exit(1);
			}
		}

		hci_close_dev(dd);
	}

	/* Create HCI socket */
	sk = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
	if (sk < 0) {
		perror("Can't create raw socket");
		exit(1);
	}

	opt = 1;
	if (setsockopt(sk, SOL_HCI, HCI_DATA_DIR, &opt, sizeof(opt)) < 0) {
		perror("Can't enable data direction info");
		exit(1);
	}

	opt = 1;
	if (setsockopt(sk, SOL_HCI, HCI_TIME_STAMP, &opt, sizeof(opt)) < 0) {
		perror("Can't enable time stamp");
		exit(1);
	}

	/* Setup filter */
	hci_filter_clear(&flt);
	hci_filter_all_ptypes(&flt);
	hci_filter_all_events(&flt);
	if (setsockopt(sk, SOL_HCI, HCI_FILTER, &flt, sizeof(flt)) < 0) {
		perror("Can't set filter");
		exit(1);
	}

	/* Bind socket to the HCI device */
	addr.hci_family = AF_BLUETOOTH;
	addr.hci_dev = dev;
	if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
		printf("Can't attach to device hci%d. %s(%d)\n", 
					dev, strerror(errno), errno);
		exit(1);
	}

	return sk;
}

static int open_connection(in_addr_t addr, in_port_t port)
{
	struct sockaddr_in sa;
	int sk, opt;

	sk = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if (sk < 0) {
		perror("Can't create inet socket");
		exit(1);
	}

	opt = 1;
	setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));

	sa.sin_family = AF_INET;
	sa.sin_addr.s_addr = htonl(INADDR_ANY);
	sa.sin_port = htons(0);
	if (bind(sk, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
		perror("Can't bind inet socket");
		close(sk);
		exit(1);
	}

	sa.sin_family = AF_INET;
	sa.sin_addr.s_addr = htonl(addr);
	sa.sin_port = htons(port);
	if (connect(sk, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
		perror("Can't connect inet socket");
		close(sk);
		exit(1);
	}

	return sk;
}

static int wait_connection(in_addr_t addr, in_port_t port)
{
	struct sockaddr_in sa;
	struct hostent *host;
	socklen_t len;
	int sk, nsk, opt;

	sk = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if (sk < 0) {
		perror("Can't create inet socket");
		exit(1);
	}

	opt = 1;
	setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));

	sa.sin_family = AF_INET;
	sa.sin_addr.s_addr = htonl(addr);
	sa.sin_port = htons(port);
	if (bind(sk, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
		perror("Can't bind inet socket");
		close(sk);
		exit(1);
	}

	host = gethostbyaddr(&sa.sin_addr, sizeof(sa.sin_addr), AF_INET);
	printf("device: %s:%d snap_len: %d filter: 0x%lx\n", 
		host ? host->h_name : inet_ntoa(sa.sin_addr),
		ntohs(sa.sin_port), snap_len, filter);

	if (listen(sk, 1)) {
		perror("Can't listen on inet socket");
		close(sk);
		exit(1);
	}

	len = sizeof(sa);
	nsk = accept(sk, (struct sockaddr *) &sa, &len);
	if (nsk < 0) {
		perror("Can't accept new inet socket");
		close(sk);
		exit(1);
	}

	host = gethostbyaddr(&sa.sin_addr, sizeof(sa.sin_addr), AF_INET);
	printf("device: %s snap_len: %d filter: 0x%lx\n", 
		host ? host->h_name : inet_ntoa(sa.sin_addr), snap_len, filter);

	close(sk);

	return nsk;
}

static struct {
	char *name;
	int  flag;
} filters[] = {
	{ "lmp",	FILT_LMP	},
	{ "hci",	FILT_HCI	},
	{ "sco",	FILT_SCO	},
	{ "l2cap",	FILT_L2CAP	},
	{ "rfcomm",	FILT_RFCOMM	},
	{ "sdp",	FILT_SDP	},
	{ "bnep",	FILT_BNEP	},
	{ "cmtp",	FILT_CMTP	},
	{ "hidp",	FILT_HIDP	},
	{ "hcrp",	FILT_HCRP	},
	{ "avdtp",	FILT_AVDTP	},
	{ "obex",	FILT_OBEX	},
	{ "capi",	FILT_CAPI	},
	{ "csr",	FILT_CSR	},
	{ "dga",	FILT_DGA	},
	{ 0 }
};

static void parse_filter(int argc, char **argv)
{
	int i,n;

	for (i = 0; i < argc; i++) {
		for (n = 0; filters[n].name; n++) {
			if (!strcasecmp(filters[n].name, argv[i])) {
				filter |= filters[n].flag;
				break;
			}
		}
	}
}

static void usage(void)
{
	printf(
	"Usage: hcidump [OPTION...] [filter]\n"
	"  -i, --device=hci_dev       HCI device\n"
	"  -l, --snap-len=len         Snap len (in bytes)\n"
	"  -p, --psm=psm              Default PSM\n"
	"  -m, --manufacturer=compid  Default manufacturer\n"
	"  -w, --save-dump=file       Save dump to a file\n"
	"  -r, --read-dump=file       Read dump from a file\n"
	"  -s, --send-dump=host       Send dump to a host\n"
	"  -n, --recv-dump=host       Receive dump on a host\n"
	"  -t, --ts                   Display time stamps\n"
	"  -a, --ascii                Dump data in ascii\n"
	"  -x, --hex                  Dump data in hex\n"
	"  -X, --ext                  Dump data in hex and ascii\n"
	"  -R, --raw                  Dump raw data\n"
	"  -C, --cmtp=psm             PSM for CMTP\n"
	"  -H, --hcrp=psm             PSM for HCRP\n"
	"  -O, --obex=channel         Channel for OBEX\n"
	"  -A, --audio=file           Extract SCO audio data\n"
	"  -B, --btsnoop              Use BTSnoop file format\n"
	"  -V, --verbose              Verbose decoding\n"
	"  -Y, --novendor             No vendor commands or events\n"
	"  -h, --help                 Give this help list\n"
	"      --usage                Give a short usage message\n"
	);
}

static struct option main_options[] = {
	{ "device",		1, 0, 'i' },
	{ "snap-len",		1, 0, 'l' },
	{ "psm",		1, 0, 'p' },
	{ "manufacturer",	1, 0, 'm' },
	{ "save-dump",		1, 0, 'w' },
	{ "read-dump",		1, 0, 'r' },
	{ "send-dump",		1, 0, 's' },
	{ "recv-dump",		1, 0, 'n' },
	{ "timestamp",		0, 0, 't' },
	{ "ascii",		0, 0, 'a' },
	{ "hex",		0, 0, 'x' },
	{ "ext",		0, 0, 'X' },
	{ "raw",		0, 0, 'R' },
	{ "cmtp",		1, 0, 'C' },
	{ "hcrp",		1, 0, 'H' },
	{ "obex",		1, 0, 'O' },
	{ "audio",		1, 0, 'A' },
	{ "btsnoop",		0, 0, 'B' },
	{ "verbose",		0, 0, 'V' },
	{ "novendor",		0, 0, 'Y' },
	{ "nopermcheck",	0, 0, 'Z' },
	{ "help",		0, 0, 'h' },
	{ 0 }
};

int main(int argc, char *argv[])
{
	struct hostent *host;
	struct in_addr addr;
	int opt, fd = -1;

	printf("HCI sniffer - Bluetooth packet analyzer ver %s\n", VERSION);

	while ((opt=getopt_long(argc, argv, "i:l:p:m:w:r:s:n:taxXRC:H:O:A:BVYZh", main_options, NULL)) != -1) {
		switch(opt) {
		case 'i':
			if (strcasecmp(optarg, "none") && strcasecmp(optarg, "system"))
				device = atoi(optarg + 3);
			else
				device = HCI_DEV_NONE;
			break;

		case 'l': 
			snap_len = atoi(optarg);
			break;

		case 'p': 
			defpsm = atoi(optarg);
			break;

		case 'm':
			defcompid = atoi(optarg);
			break;

		case 'w':
			mode = WRITE;
			dump_file = strdup(optarg);
			break;

		case 'r':
			mode = READ;
			dump_file = strdup(optarg);
			break;

		case 's':
			mode = SEND;
			host = gethostbyname(optarg);
			if (host) {
				bcopy(host->h_addr, &addr, sizeof(struct in_addr));
				dump_addr = ntohl(addr.s_addr);
				dump_port = DEFAULT_PORT;
			} else {
				dump_addr = INADDR_LOOPBACK;
				dump_port = DEFAULT_PORT;
			}
			break;

		case 'n':
			mode = RECEIVE;
			host = gethostbyname(optarg);
			if (host) {
				bcopy(host->h_addr, &addr, sizeof(struct in_addr));
				dump_addr = ntohl(addr.s_addr);
				dump_port = DEFAULT_PORT;
			} else {
				dump_addr = INADDR_LOOPBACK;
				dump_port = DEFAULT_PORT;
			}
			break;

		case 't': 
			flags |= DUMP_TSTAMP;
			break;

		case 'a': 
			flags |= DUMP_ASCII;
			break;

		case 'x':
			flags |= DUMP_HEX;
			break;

		case 'X':
			flags |= DUMP_EXT;
			break;

		case 'R': 
			flags |= DUMP_RAW;
			break;

		case 'C': 
			set_proto(0, atoi(optarg), 0, SDP_UUID_CMTP);
			break;

		case 'H':
			set_proto(0, atoi(optarg), 0, SDP_UUID_HARDCOPY_CONTROL_CHANNEL);
			break;

		case 'O':
			set_proto(0, 0, atoi(optarg), SDP_UUID_OBEX);
			break;

		case 'A':
			audio_file = strdup(optarg);
			break;

		case 'B':
			flags |= DUMP_BTSNOOP;
			break;

		case 'V':
			flags |= DUMP_VERBOSE;
			break;

		case 'Y':
			flags |= DUMP_NOVENDOR;
			break;

		case 'Z':
			permcheck = 0;
			break;

		case 'h':
		default:
			usage();
			exit(0);
		}
	}

	argc -= optind;
	argv += optind;
	optind = 0;

	if (argc > 0)
		parse_filter(argc, argv);

	/* Default settings */
	if (!filter)
		filter = ~0L;

	if (audio_file)
		fd = open_file(audio_file, AUDIO, flags);

	switch (mode) {
	case PARSE:
		init_parser(flags, filter, defpsm, defcompid, fd);
		process_frames(device, open_socket(device, flags), -1, flags);
		break;

	case READ:
		init_parser(flags, filter, defpsm, defcompid, fd);
		read_dump(open_file(dump_file, mode, flags));
		break;

	case WRITE:
		process_frames(device, open_socket(device, flags),
				open_file(dump_file, mode, flags), flags);
		break;

	case RECEIVE:
		init_parser(flags, filter, defpsm, defcompid, fd);
		read_dump(wait_connection(dump_addr, dump_port));
		break;

	case SEND:
		process_frames(device, open_socket(device, flags),
				open_connection(dump_addr, dump_port), flags);
		break;
	}

	return 0;
}