freebsd-nq/usr.sbin/bluetooth/l2ping/l2ping.c
2015-04-07 16:48:23 +00:00

294 lines
7.2 KiB
C

/*
* l2ping.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: l2ping.c,v 1.5 2003/05/16 19:54:40 max Exp $
* $FreeBSD$
*/
#include <sys/ioctl.h>
#include <sys/time.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <assert.h>
#define L2CAP_SOCKET_CHECKED
#include <bluetooth.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static void usage (void);
static void tv_sub (struct timeval *, struct timeval const *);
static double tv2msec (struct timeval const *);
#undef min
#define min(x, y) (((x) > (y))? (y) : (x))
static char const pattern[] = "1234567890-";
#define PATTERN_SIZE (sizeof(pattern) - 1)
/*
* Main
*/
int
main(int argc, char *argv[])
{
bdaddr_t src, dst;
struct hostent *he;
uint8_t *echo_data;
struct sockaddr_l2cap sa;
int32_t n, s, count, wait, flood, echo_size, numeric;
char *endp, *rname;
/* Set defaults */
memcpy(&src, NG_HCI_BDADDR_ANY, sizeof(src));
memcpy(&dst, NG_HCI_BDADDR_ANY, sizeof(dst));
echo_data = (uint8_t *) calloc(NG_L2CAP_MAX_ECHO_SIZE, sizeof(uint8_t));
if (echo_data == NULL) {
fprintf(stderr, "Failed to allocate echo data buffer");
exit(1);
}
/*
* Set default echo size to the NG_L2CAP_MTU_MINIMUM minus
* the size of the L2CAP signalling command header.
*/
echo_size = NG_L2CAP_MTU_MINIMUM - sizeof(ng_l2cap_cmd_hdr_t);
count = -1; /* unimited */
wait = 1; /* sec */
flood = 0;
numeric = 0;
/* Parse command line arguments */
while ((n = getopt(argc, argv, "a:c:fi:nS:s:h")) != -1) {
switch (n) {
case 'a':
if (!bt_aton(optarg, &dst)) {
if ((he = bt_gethostbyname(optarg)) == NULL)
errx(1, "%s: %s", optarg, hstrerror(h_errno));
memcpy(&dst, he->h_addr, sizeof(dst));
}
break;
case 'c':
count = strtol(optarg, &endp, 10);
if (count <= 0 || *endp != '\0')
usage();
break;
case 'f':
flood = 1;
break;
case 'i':
wait = strtol(optarg, &endp, 10);
if (wait <= 0 || *endp != '\0')
usage();
break;
case 'n':
numeric = 1;
break;
case 'S':
if (!bt_aton(optarg, &src)) {
if ((he = bt_gethostbyname(optarg)) == NULL)
errx(1, "%s: %s", optarg, hstrerror(h_errno));
memcpy(&src, he->h_addr, sizeof(src));
}
break;
case 's':
echo_size = strtol(optarg, &endp, 10);
if (echo_size < sizeof(int32_t) ||
echo_size > NG_L2CAP_MAX_ECHO_SIZE ||
*endp != '\0')
usage();
break;
case 'h':
default:
usage();
break;
}
}
if (memcmp(&dst, NG_HCI_BDADDR_ANY, sizeof(dst)) == 0)
usage();
he = bt_gethostbyaddr((const char *)&dst, sizeof(dst), AF_BLUETOOTH);
if (he == NULL || he->h_name == NULL || he->h_name[0] == '\0' || numeric)
asprintf(&rname, "%s", bt_ntoa(&dst, NULL));
else
rname = strdup(he->h_name);
if (rname == NULL)
errx(1, "Failed to create remote hostname");
s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_L2CAP);
if (s < 0)
err(2, "Could not create socket");
memset(&sa, 0, sizeof(sa));
sa.l2cap_len = sizeof(sa);
sa.l2cap_family = AF_BLUETOOTH;
memcpy(&sa.l2cap_bdaddr, &src, sizeof(sa.l2cap_bdaddr));
if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
err(3,
"Could not bind socket, src bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL));
memset(&sa, 0, sizeof(sa));
sa.l2cap_len = sizeof(sa);
sa.l2cap_family = AF_BLUETOOTH;
memcpy(&sa.l2cap_bdaddr, &dst, sizeof(sa.l2cap_bdaddr));
if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
err(4,
"Could not connect socket, dst bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL));
/* Fill pattern */
for (n = 0; n < echo_size; ) {
int32_t avail = min(echo_size - n, PATTERN_SIZE);
memcpy(echo_data + n, pattern, avail);
n += avail;
}
/* Start ping'ing */
for (n = 0; count == -1 || count > 0; n ++) {
struct ng_btsocket_l2cap_raw_ping r;
struct timeval a, b;
int32_t fail;
if (gettimeofday(&a, NULL) < 0)
err(5, "Could not gettimeofday(a)");
fail = 0;
*((int32_t *) echo_data) = htonl(n);
r.result = 0;
r.echo_size = echo_size;
r.echo_data = echo_data;
if (ioctl(s, SIOC_L2CAP_L2CA_PING, &r, sizeof(r)) < 0) {
r.result = errno;
fail = 1;
/*
warn("Could not ping, dst bdaddr=%s",
bt_ntoa(&r.echo_dst, NULL));
*/
}
if (gettimeofday(&b, NULL) < 0)
err(7, "Could not gettimeofday(b)");
tv_sub(&b, &a);
fprintf(stdout,
"%d bytes from %s seq_no=%d time=%.3f ms result=%#x %s\n",
r.echo_size,
rname,
ntohl(*((int32_t *)(r.echo_data))),
tv2msec(&b), r.result,
((fail == 0)? "" : strerror(errno)));
if (!flood) {
/* Wait */
a.tv_sec = wait;
a.tv_usec = 0;
select(0, NULL, NULL, NULL, &a);
}
if (count != -1)
count --;
}
free(rname);
free(echo_data);
close(s);
return (0);
} /* main */
/*
* a -= b, for timevals
*/
static void
tv_sub(struct timeval *a, struct timeval const *b)
{
if (a->tv_usec < b->tv_usec) {
a->tv_usec += 1000000;
a->tv_sec -= 1;
}
a->tv_usec -= b->tv_usec;
a->tv_sec -= b->tv_sec;
} /* tv_sub */
/*
* convert tv to msec
*/
static double
tv2msec(struct timeval const *tvp)
{
return(((double)tvp->tv_usec)/1000.0 + ((double)tvp->tv_sec)*1000.0);
} /* tv2msec */
/*
* Usage
*/
static void
usage(void)
{
fprintf(stderr, "Usage: l2ping [-fhn] -a remote " \
"[-c count] [-i wait] [-S source] [-s size]\n");
fprintf(stderr, "Where:\n");
fprintf(stderr, " -a remote Specify remote device to ping\n");
fprintf(stderr, " -c count Number of packets to send\n");
fprintf(stderr, " -f No delay between packets\n");
fprintf(stderr, " -h Display this message\n");
fprintf(stderr, " -i wait Delay between packets (sec)\n");
fprintf(stderr, " -n Numeric output only\n");
fprintf(stderr, " -S source Specify source device\n");
fprintf(stderr, " -s size Packet size (bytes), " \
"between %zd and %zd\n", sizeof(int32_t), NG_L2CAP_MAX_ECHO_SIZE);
exit(255);
} /* usage */