/*      $NetBSD: btdevctl.c,v 1.11 2020/06/07 00:12:00 thorpej Exp $    */

/*-
 * Copyright (c) 2006 Itronix Inc.
 * All rights reserved.
 *
 * Written by Iain Hibbert for Itronix Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of Itronix Inc. may not be used to endorse
 *    or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__COPYRIGHT("@(#) Copyright (c) 2006 The NetBSD Foundation, Inc.\
  @(#) Copyright (c) 2006 Itronix, Inc.\
  All rights reserved.");
__RCSID("$NetBSD: btdevctl.c,v 1.11 2020/06/07 00:12:00 thorpej Exp $");

#include <prop/proplib.h>
#include <sys/ioctl.h>

#include <bluetooth.h>
#include <ctype.h>
#include <err.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <dev/bluetooth/btdev.h>

#include "btdevctl.h"

#define BTHUB_PATH              "/dev/bthub"

__dead static void usage(void);
static char *uppercase(const char *);
static int bthub_pioctl(unsigned long, prop_dictionary_t);

int
main(int argc, char *argv[])
{
        prop_dictionary_t dev;
        bdaddr_t laddr, raddr;
        const char *service, *mode;
        int ch, query, verbose, attach, detach, set, none;

        bdaddr_copy(&laddr, BDADDR_ANY);
        bdaddr_copy(&raddr, BDADDR_ANY);
        service = NULL;
        mode = NULL;
        query = false;
        verbose = false;
        attach = false;
        detach = false;
        set = false;
        none = false;

        while ((ch = getopt(argc, argv, "Aa:Dd:hm:qs:v")) != -1) {
                switch (ch) {
                case 'A': /* Attach device */
                        attach = true;
                        break;

                case 'a': /* remote address */
                        if (!bt_aton(optarg, &raddr)) {
                                struct hostent  *he = NULL;

                                if ((he = bt_gethostbyname(optarg)) == NULL)
                                        errx(EXIT_FAILURE, "%s: %s",
                                                optarg, hstrerror(h_errno));

                                bdaddr_copy(&raddr, (bdaddr_t *)he->h_addr);
                        }
                        break;

                case 'D': /* Detach device */
                        detach = true;
                        break;

                case 'd': /* local device address */
                        if (!bt_devaddr(optarg, &laddr))
                                err(EXIT_FAILURE, "%s", optarg);

                        break;

                case 'm': /* link mode */
                        if (strcasecmp(optarg, "none") == 0)
                                none = true;
                        else if (strcasecmp(optarg, BTDEVauth) == 0)
                                mode = BTDEVauth;
                        else if (strcasecmp(optarg, BTDEVencrypt) == 0)
                                mode = BTDEVencrypt;
                        else if (strcasecmp(optarg, BTDEVsecure) == 0)
                                mode = BTDEVsecure;
                        else
                                errx(EXIT_FAILURE, "%s: unknown mode", optarg);

                        break;

                case 'q':
                        query = true;
                        break;

                case 's': /* service */
                        service = uppercase(optarg);
                        break;

                case 'v': /* verbose */
                        verbose = true;
                        break;

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

        argc -= optind;
        argv += optind;

        if (argc > 0
            || (attach == true && detach == true)
            || bdaddr_any(&laddr)
            || bdaddr_any(&raddr)
            || service == NULL)
                usage();

        if (attach == false && detach == false)
                verbose = true;

        dev = db_get(&laddr, &raddr, service);
        if (dev == NULL || query == true) {
                if (verbose == true)
                        printf("Performing SDP query for service '%s'..\n", service);

                dev = cfg_query(&laddr, &raddr, service);
                set = true;
        }

        if (mode != NULL) {
                if (!prop_dictionary_set_string_nocopy(dev, BTDEVmode, mode))
                        errx(EXIT_FAILURE, "proplib failure (%s)", BTDEVmode);
                set = true;
        }

        if (none == true) {
                prop_dictionary_remove(dev, BTDEVmode);
                set = true;
        }

        if (set == true && !db_set(dev, &laddr, &raddr, service))
                errx(EXIT_FAILURE, "service store failed");

        /* add binary local-bdaddr */
        if (!prop_dictionary_set_data(dev, BTDEVladdr, &laddr, sizeof(laddr)))
                errx(EXIT_FAILURE, "proplib failure (%s)", BTDEVladdr);

        /* add binary remote-bdaddr */
        if (!prop_dictionary_set_data(dev, BTDEVraddr, &raddr, sizeof(raddr)))
                errx(EXIT_FAILURE, "proplib failure (%s)", BTDEVraddr);

        /* add service name */
        if (!prop_dictionary_set_string(dev, BTDEVservice, service))
                errx(EXIT_FAILURE, "proplib failure (%s)", BTDEVservice);

        if (verbose == true)
                cfg_print(dev);

        if (attach == true)
                bthub_pioctl(BTDEV_ATTACH, dev);

        if (detach == true)
                bthub_pioctl(BTDEV_DETACH, dev);

        exit(EXIT_SUCCESS);
}

static void
usage(void)
{

        fprintf(stderr,
                "usage: %s [-A | -D] [-qv] [-m mode] -a address -d device -s service\n"
                "Where:\n"
                "\t-A           attach device\n"
                "\t-a address   remote device address\n"
                "\t-D           detach device\n"
                "\t-d device    local device address\n"
                "\t-m mode      link mode\n"
                "\t-q           force SDP query\n"
                "\t-s service   remote service\n"
                "\t-v           verbose\n"
                "", getprogname());

        exit(EXIT_FAILURE);
}

static char *
uppercase(const char *arg)
{
        char *str, *ptr;

        str = strdup(arg);
        if (str == NULL)
                err(EXIT_FAILURE, "strdup");

        for (ptr = str ; *ptr ; ptr++)
                *ptr = (char)toupper((int)*ptr);

        return str;
}

static int
bthub_pioctl(unsigned long cmd, prop_dictionary_t dict)
{
        int fd;

        fd = open(BTHUB_PATH, O_WRONLY, 0);
        if (fd < 0)
                err(EXIT_FAILURE, "%s", BTHUB_PATH);

        if (prop_dictionary_send_ioctl(dict, fd, cmd))
                err(EXIT_FAILURE, "%s", BTHUB_PATH);

        close(fd);
        return EXIT_SUCCESS;
}