4 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * $Id: l2ping.c,v 1.5 2003/05/16 19:54:40 max Exp $
32 #include <sys/ioctl.h>
34 #include <arpa/inet.h>
35 #include <netinet/in.h>
37 #include <bluetooth.h>
45 static void usage (void);
46 static void tv_sub (struct timeval *, struct timeval const *);
47 static double tv2msec (struct timeval const *);
50 #define min(x, y) (((x) > (y))? (y) : (x))
52 static char const pattern[] = "1234567890-";
53 #define PATTERN_SIZE (sizeof(pattern) - 1)
60 main(int argc, char *argv[])
63 struct hostent *he = NULL;
64 uint8_t *echo_data = NULL;
65 struct sockaddr_l2cap sa;
66 int32_t n, s, count, wait, flood, echo_size, numeric;
70 memcpy(&src, NG_HCI_BDADDR_ANY, sizeof(src));
71 memcpy(&dst, NG_HCI_BDADDR_ANY, sizeof(dst));
73 echo_data = (uint8_t *) calloc(NG_L2CAP_MAX_ECHO_SIZE, sizeof(uint8_t));
74 if (echo_data == NULL) {
75 fprintf(stderr, "Failed to allocate echo data buffer");
80 * Set default echo size to the NG_L2CAP_MTU_MINIMUM minus
81 * the size of the L2CAP signalling command header.
84 echo_size = NG_L2CAP_MTU_MINIMUM - sizeof(ng_l2cap_cmd_hdr_t);
85 count = -1; /* unimited */
90 /* Parse command line arguments */
91 while ((n = getopt(argc, argv, "a:c:fi:nS:s:h")) != -1) {
94 if (!bt_aton(optarg, &dst)) {
95 if ((he = bt_gethostbyname(optarg)) == NULL)
96 errx(1, "%s: %s", optarg, hstrerror(h_errno));
98 memcpy(&dst, he->h_addr, sizeof(dst));
103 count = atoi(optarg);
123 if (!bt_aton(optarg, &src)) {
124 if ((he = bt_gethostbyname(optarg)) == NULL)
125 errx(1, "%s: %s", optarg, hstrerror(h_errno));
127 memcpy(&src, he->h_addr, sizeof(src));
132 echo_size = atoi(optarg);
133 if (echo_size < sizeof(int32_t) ||
134 echo_size > NG_L2CAP_MAX_ECHO_SIZE)
145 if (memcmp(&dst, NG_HCI_BDADDR_ANY, sizeof(dst)) == 0)
148 he = bt_gethostbyaddr((const char *)&dst, sizeof(dst), AF_BLUETOOTH);
149 if (he == NULL || he->h_name == NULL || he->h_name[0] == '\0' || numeric)
150 asprintf(&rname, "%s", bt_ntoa(&dst, NULL));
152 rname = strdup(he->h_name);
155 errx(1, "Failed to create remote hostname");
157 s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_L2CAP);
159 err(2, "Could not create socket");
161 memset(&sa, 0, sizeof(sa));
162 sa.l2cap_len = sizeof(sa);
163 sa.l2cap_family = AF_BLUETOOTH;
164 memcpy(&sa.l2cap_bdaddr, &src, sizeof(sa.l2cap_bdaddr));
166 if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
168 "Could not bind socket, src bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL));
170 memset(&sa, 0, sizeof(sa));
171 sa.l2cap_len = sizeof(sa);
172 sa.l2cap_family = AF_BLUETOOTH;
173 memcpy(&sa.l2cap_bdaddr, &dst, sizeof(sa.l2cap_bdaddr));
175 if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
177 "Could not connect socket, dst bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL));
180 for (n = 0; n < echo_size; ) {
181 int32_t avail = min(echo_size - n, PATTERN_SIZE);
183 memcpy(echo_data + n, pattern, avail);
188 for (n = 0; count == -1 || count > 0; n ++) {
189 struct ng_btsocket_l2cap_raw_ping r;
193 if (gettimeofday(&a, NULL) < 0)
194 err(5, "Could not gettimeofday(a)");
197 *((int32_t *) echo_data) = htonl(n);
200 r.echo_size = echo_size;
201 r.echo_data = echo_data;
202 if (ioctl(s, SIOC_L2CAP_L2CA_PING, &r, sizeof(r)) < 0) {
206 warn("Could not ping, dst bdaddr=%s",
207 bt_ntoa(&r.echo_dst, NULL));
211 if (gettimeofday(&b, NULL) < 0)
212 err(7, "Could not gettimeofday(b)");
217 "%d bytes from %s seq_no=%d time=%.3f ms result=%#x %s\n",
220 ntohl(*((int32_t *)(r.echo_data))),
221 tv2msec(&b), r.result,
222 ((fail == 0)? "" : strerror(errno)));
228 select(0, NULL, NULL, NULL, &a);
243 * a -= b, for timevals
247 tv_sub(struct timeval *a, struct timeval const *b)
249 if (a->tv_usec < b->tv_usec) {
250 a->tv_usec += 1000000;
254 a->tv_usec -= b->tv_usec;
255 a->tv_sec -= b->tv_sec;
263 tv2msec(struct timeval const *tvp)
265 return(((double)tvp->tv_usec)/1000.0 + ((double)tvp->tv_sec)*1000.0);
275 fprintf(stderr, "Usage: l2ping -a bd_addr " \
276 "[-S bd_addr -c count -i wait -n -s size -h]\n");
277 fprintf(stderr, "Where:\n");
278 fprintf(stderr, " -a remote Specify remote device to ping\n");
279 fprintf(stderr, " -c count Number of packets to send\n");
280 fprintf(stderr, " -f No delay (sort of flood)\n");
281 fprintf(stderr, " -h Display this message\n");
282 fprintf(stderr, " -i wait Delay between packets (sec)\n");
283 fprintf(stderr, " -n Numeric output only\n");
284 fprintf(stderr, " -S source Specify source device\n");
285 fprintf(stderr, " -s size Packet size (bytes), " \
286 "between %zd and %zd\n", sizeof(int32_t), NG_L2CAP_MAX_ECHO_SIZE);