4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
6 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * $Id: l2ping.c,v 1.5 2003/05/16 19:54:40 max Exp $
34 #include <sys/ioctl.h>
36 #include <arpa/inet.h>
37 #include <netinet/in.h>
39 #define L2CAP_SOCKET_CHECKED
40 #include <bluetooth.h>
49 static void usage (void);
50 static void tv_sub (struct timeval *, struct timeval const *);
51 static double tv2msec (struct timeval const *);
54 #define min(x, y) (((x) > (y))? (y) : (x))
56 static char const pattern[] = "1234567890-";
57 #define PATTERN_SIZE (sizeof(pattern) - 1)
64 main(int argc, char *argv[])
69 struct sockaddr_l2cap sa;
70 int32_t n, s, count, wait, flood, echo_size, numeric;
74 memcpy(&src, NG_HCI_BDADDR_ANY, sizeof(src));
75 memcpy(&dst, NG_HCI_BDADDR_ANY, sizeof(dst));
77 echo_data = (uint8_t *) calloc(NG_L2CAP_MAX_ECHO_SIZE, sizeof(uint8_t));
78 if (echo_data == NULL) {
79 fprintf(stderr, "Failed to allocate echo data buffer");
84 * Set default echo size to the NG_L2CAP_MTU_MINIMUM minus
85 * the size of the L2CAP signalling command header.
88 echo_size = NG_L2CAP_MTU_MINIMUM - sizeof(ng_l2cap_cmd_hdr_t);
89 count = -1; /* unimited */
94 /* Parse command line arguments */
95 while ((n = getopt(argc, argv, "a:c:fi:nS:s:h")) != -1) {
98 if (!bt_aton(optarg, &dst)) {
99 if ((he = bt_gethostbyname(optarg)) == NULL)
100 errx(1, "%s: %s", optarg, hstrerror(h_errno));
102 memcpy(&dst, he->h_addr, sizeof(dst));
107 count = strtol(optarg, &endp, 10);
108 if (count <= 0 || *endp != '\0')
117 wait = strtol(optarg, &endp, 10);
118 if (wait <= 0 || *endp != '\0')
127 if (!bt_aton(optarg, &src)) {
128 if ((he = bt_gethostbyname(optarg)) == NULL)
129 errx(1, "%s: %s", optarg, hstrerror(h_errno));
131 memcpy(&src, he->h_addr, sizeof(src));
136 echo_size = strtol(optarg, &endp, 10);
137 if (echo_size < sizeof(int32_t) ||
138 echo_size > NG_L2CAP_MAX_ECHO_SIZE ||
150 if (memcmp(&dst, NG_HCI_BDADDR_ANY, sizeof(dst)) == 0)
153 he = bt_gethostbyaddr((const char *)&dst, sizeof(dst), AF_BLUETOOTH);
154 if (he == NULL || he->h_name == NULL || he->h_name[0] == '\0' || numeric)
155 asprintf(&rname, "%s", bt_ntoa(&dst, NULL));
157 rname = strdup(he->h_name);
160 errx(1, "Failed to create remote hostname");
162 s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_L2CAP);
164 err(2, "Could not create socket");
166 memset(&sa, 0, sizeof(sa));
167 sa.l2cap_len = sizeof(sa);
168 sa.l2cap_family = AF_BLUETOOTH;
169 memcpy(&sa.l2cap_bdaddr, &src, sizeof(sa.l2cap_bdaddr));
171 if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
173 "Could not bind socket, src bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL));
175 memset(&sa, 0, sizeof(sa));
176 sa.l2cap_len = sizeof(sa);
177 sa.l2cap_family = AF_BLUETOOTH;
178 memcpy(&sa.l2cap_bdaddr, &dst, sizeof(sa.l2cap_bdaddr));
180 if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
182 "Could not connect socket, dst bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL));
185 for (n = 0; n < echo_size; ) {
186 int32_t avail = min(echo_size - n, PATTERN_SIZE);
188 memcpy(echo_data + n, pattern, avail);
193 for (n = 0; count == -1 || count > 0; n ++) {
194 struct ng_btsocket_l2cap_raw_ping r;
198 if (gettimeofday(&a, NULL) < 0)
199 err(5, "Could not gettimeofday(a)");
202 *((int32_t *) echo_data) = htonl(n);
205 r.echo_size = echo_size;
206 r.echo_data = echo_data;
207 if (ioctl(s, SIOC_L2CAP_L2CA_PING, &r, sizeof(r)) < 0) {
211 warn("Could not ping, dst bdaddr=%s",
212 bt_ntoa(&r.echo_dst, NULL));
216 if (gettimeofday(&b, NULL) < 0)
217 err(7, "Could not gettimeofday(b)");
222 "%d bytes from %s seq_no=%d time=%.3f ms result=%#x %s\n",
225 ntohl(*((int32_t *)(r.echo_data))),
226 tv2msec(&b), r.result,
227 ((fail == 0)? "" : strerror(errno)));
233 select(0, NULL, NULL, NULL, &a);
248 * a -= b, for timevals
252 tv_sub(struct timeval *a, struct timeval const *b)
254 if (a->tv_usec < b->tv_usec) {
255 a->tv_usec += 1000000;
259 a->tv_usec -= b->tv_usec;
260 a->tv_sec -= b->tv_sec;
268 tv2msec(struct timeval const *tvp)
270 return(((double)tvp->tv_usec)/1000.0 + ((double)tvp->tv_sec)*1000.0);
280 fprintf(stderr, "Usage: l2ping [-fhn] -a remote " \
281 "[-c count] [-i wait] [-S source] [-s size]\n");
282 fprintf(stderr, "Where:\n");
283 fprintf(stderr, " -a remote Specify remote device to ping\n");
284 fprintf(stderr, " -c count Number of packets to send\n");
285 fprintf(stderr, " -f No delay between packets\n");
286 fprintf(stderr, " -h Display this message\n");
287 fprintf(stderr, " -i wait Delay between packets (sec)\n");
288 fprintf(stderr, " -n Numeric output only\n");
289 fprintf(stderr, " -S source Specify source device\n");
290 fprintf(stderr, " -s size Packet size (bytes), " \
291 "between %zd and %zd\n", sizeof(int32_t), NG_L2CAP_MAX_ECHO_SIZE);