/*
* l2control.c
*
* Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
*
* $Id: l2control.c,v 1.3 2003/04/27 19:45:34 max Exp $
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <bitstring.h>
#include <assert.h>
#include <err.h>
#include <errno.h>
#include <ng_hci.h>
#include <ng_l2cap.h>
#include <ng_btsocket.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "l2control.h"
/* Prototypes */
static int do_l2cap_command (bdaddr_p, int, char **);
static struct l2cap_command * find_l2cap_command (char const *,
struct l2cap_command *);
static void print_l2cap_command (struct l2cap_command *);
static void usage (void);
/* Main */
int
main(int argc, char *argv[])
{
int n;
bdaddr_t bdaddr;
memset(&bdaddr, 0, sizeof(bdaddr));
/* Process command line arguments */
while ((n = getopt(argc, argv, "a:h")) != -1) {
switch (n) {
case 'a': {
int a0, a1, a2, a3, a4, a5;
if (sscanf(optarg, "%x:%x:%x:%x:%x:%x",
&a5, &a4, &a3, &a2, &a1, &a0) != 6) {
usage();
break;
}
bdaddr.b[0] = (a0 & 0xff);
bdaddr.b[1] = (a1 & 0xff);
bdaddr.b[2] = (a2 & 0xff);
bdaddr.b[3] = (a3 & 0xff);
bdaddr.b[4] = (a4 & 0xff);
bdaddr.b[5] = (a5 & 0xff);
} break;
case 'h':
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (*argv == NULL)
usage();
return (do_l2cap_command(&bdaddr, argc, argv));
} /* main */
/* Execute commands */
static int
do_l2cap_command(bdaddr_p bdaddr, int argc, char **argv)
{
char *cmd = argv[0];
struct l2cap_command *c = NULL;
struct sockaddr_l2cap sa;
int s, e, help;
help = 0;
if (strcasecmp(cmd, "help") == 0) {
argc --;
argv ++;
if (argc <= 0) {
fprintf(stdout, "Supported commands:\n");
print_l2cap_command(l2cap_commands);
fprintf(stdout, "\nFor more information use " \
"'help command'\n");
return (OK);
}
help = 1;
cmd = argv[0];
}
c = find_l2cap_command(cmd, l2cap_commands);
if (c == NULL) {
fprintf(stdout, "Unknown command: \"%s\"\n", cmd);
return (ERROR);
}
if (!help) {
if (memcmp(bdaddr, NG_HCI_BDADDR_ANY, sizeof(*bdaddr)) == 0)
usage();
memset(&sa, 0, sizeof(sa));
sa.l2cap_len = sizeof(sa);
sa.l2cap_family = AF_BLUETOOTH;
memcpy(&sa.l2cap_bdaddr, bdaddr, sizeof(sa.l2cap_bdaddr));
s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_L2CAP);
if (s < 0)
err(1, "Could not create socket");
if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
err(2,
"Could not bind socket, bdaddr=%x:%x:%x:%x:%x:%x",
sa.l2cap_bdaddr.b[5], sa.l2cap_bdaddr.b[4],
sa.l2cap_bdaddr.b[3], sa.l2cap_bdaddr.b[2],
sa.l2cap_bdaddr.b[1], sa.l2cap_bdaddr.b[0]);
e = 0x0ffff;
if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &e, sizeof(e)) < 0)
err(3, "Coult not setsockopt(RCVBUF, %d)", e);
e = (c->handler)(s, -- argc, ++ argv);
close(s);
} else
e = USAGE;
switch (e) {
case OK:
case FAILED:
break;
case ERROR:
fprintf(stdout, "Could not execute command \"%s\". %s\n",
cmd, strerror(errno));
break;
case USAGE:
fprintf(stdout, "Usage: %s\n%s\n", c->command, c->description);
break;
default: assert(0); break;
}
return (e);
} /* do_l2cap_command */
/* Try to find command in specified category */
static struct l2cap_command *
find_l2cap_command(char const *command, struct l2cap_command *category)
{
struct l2cap_command *c = NULL;
for (c = category; c->command != NULL; c++) {
char *c_end = strchr(c->command, ' ');
if (c_end != NULL) {
int len = c_end - c->command;
if (strncasecmp(command, c->command, len) == 0)
return (c);
} else if (strcasecmp(command, c->command) == 0)
return (c);
}
return (NULL);
} /* find_l2cap_command */
/* Try to find command in specified category */
static void
print_l2cap_command(struct l2cap_command *category)
{
struct l2cap_command *c = NULL;
for (c = category; c->command != NULL; c++)
fprintf(stdout, "\t%s\n", c->command);
} /* print_l2cap_command */
/* Usage */
static void
usage(void)
{
fprintf(stdout, "Usage: l2control -a BD_ADDR [-h] cmd [p1] [..]]\n");
exit(255);
} /* usage */
