Add tool for the CSR BCCMD interface

1 files changed, 193 insertions, 0 deletions

diff --git a/tools/bccmd.c b/tools/bccmd.c
new file mode 100644
index 00000000..4b4a1fb4
--- /dev/null
+++ b/tools/bccmd.c
@@ -0,0 +1,193 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2004-2005  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation;
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ *  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+ *  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+ *  CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ *  ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+ *  COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+ *  SOFTWARE IS DISCLAIMED.
+ *
+ *
+ *  $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <sys/socket.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/hci.h>
+#include <bluetooth/hci_lib.h>
+
+#include "csr.h"
+
+static int cmd_keylen(int dd, int argc, char *argv[])
+{
+	uint8_t buf[8];
+	uint16_t handle, keylen;
+	int err;
+
+	if (argc < 1) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	if (argc > 1) {
+		errno = E2BIG;
+		return -1;
+	}
+
+	handle = atoi(argv[0]);
+
+	memset(buf, 0, sizeof(buf));
+	buf[0] = handle & 0xff;
+	buf[1] = handle >> 8;
+
+	err = csr_read_varid_complex(dd, 0x4711,
+				CSR_VARID_CRYPT_KEY_LENGTH, buf, sizeof(buf));
+	if (err < 0) {
+		errno = -err;
+		return -1;
+	}
+
+	handle = buf[0] | (buf[1] << 8);
+	keylen = buf[2] | (buf[3] << 8);
+
+	printf("Crypt key length: %d bit\n", keylen * 8);
+
+	return 0;
+}
+
+static struct {
+	char *str;
+	int (*func)(int dd, int argc, char **argv);
+	char *arg;
+	char *doc;
+} commands[] = {
+	{ "keylen", cmd_keylen, "<handle>", "Get current crypt key length" },
+	{ NULL },
+};
+
+static void usage(void)
+{
+	int i;
+
+	printf("bccmd - Utility for the CSR BCCMD interface\n\n");
+	printf("Usage:\n"
+		"\tbccmd [-i <dev>] <command>\n\n");
+
+	printf("Commands:\n");
+		for (i = 0; commands[i].str; i++)
+			printf("\t%s\t%s\t%s\n", commands[i].str,
+				commands[i].arg, commands[i].doc);
+}
+
+static struct option main_options[] = {
+	{ "help",	0, 0, 'h' },
+	{ "device",	1, 0, 'i' },
+	{ 0, 0, 0, 0 }
+};
+
+int main(int argc, char *argv[])
+{
+	struct hci_dev_info di;
+	struct hci_version ver;
+	int i, err, dd, opt, dev = 0;
+
+	while ((opt=getopt_long(argc, argv, "+i:h", main_options, NULL)) != -1) {
+		switch (opt) {
+		case 'i':
+			dev = hci_devid(optarg);
+			if (dev < 0) {
+				perror("Invalid device");
+				exit(1);
+			}
+			break;
+
+		case 'h':
+		default:
+			usage();
+			exit(0);
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+	optind = 0;
+
+	if (argc < 1) {
+		usage();
+		exit(1);
+	}
+
+	dd = hci_open_dev(dev);
+	if (dd < 0) {
+		fprintf(stderr, "Can't open device hci%d: %s (%d)\n",
+						dev, strerror(errno), errno);
+		exit(1);
+	}
+
+	if (hci_devinfo(dev, &di) < 0) {
+		fprintf(stderr, "Can't get device info for hci%d: %s (%d)\n",
+						dev, strerror(errno), errno);
+		hci_close_dev(dd);
+		exit(1);
+	}
+
+	if (hci_read_local_version(dd, &ver, 1000) < 0) {
+		fprintf(stderr, "Can't read version info for hci%d: %s (%d)\n",
+						dev, strerror(errno), errno);
+		hci_close_dev(dd);
+		exit(1);
+	}
+
+	if (ver.manufacturer != 10) {
+		fprintf(stderr, "Unsupported manufacturer\n");
+		hci_close_dev(dd);
+		exit(1);
+	}
+
+	for (i = 0; commands[i].str; i++) {
+		if (strcasecmp(commands[i].str, argv[0]))
+			continue;
+
+		err = commands[i].func(dd, argc - 1, argv + 1);
+
+		hci_close_dev(dd);
+
+		if (err < 0) {
+			fprintf(stderr, "Can't execute command: %s (%d)\n",
+							strerror(errno), errno);
+			exit(1);
+		}
+
+		exit(0);
+	}
+
+	fprintf(stderr, "Unsupported command\n");
+
+	hci_close_dev(dd);
+
+	exit(1);
+}