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>
46 static void usage (void);
47 static void tv_sub (struct timeval *, struct timeval const *);
48 static double tv2msec (struct timeval const *);
51 #define min(x, y) (((x) > (y))? (y) : (x))
53 static char const pattern[] = "1234567890-";
54 #define PATTERN_SIZE (sizeof(pattern) - 1)
61 main(int argc, char *argv[])
66 struct sockaddr_l2cap sa;
67 int32_t n, s, count, wait, flood, echo_size, numeric;
71 memcpy(&src, NG_HCI_BDADDR_ANY, sizeof(src));
72 memcpy(&dst, NG_HCI_BDADDR_ANY, sizeof(dst));
74 echo_data = (uint8_t *) calloc(NG_L2CAP_MAX_ECHO_SIZE, sizeof(uint8_t));
75 if (echo_data == NULL) {
76 fprintf(stderr, "Failed to allocate echo data buffer");
81 * Set default echo size to the NG_L2CAP_MTU_MINIMUM minus
82 * the size of the L2CAP signalling command header.
85 echo_size = NG_L2CAP_MTU_MINIMUM - sizeof(ng_l2cap_cmd_hdr_t);
86 count = -1; /* unimited */
91 /* Parse command line arguments */
92 while ((n = getopt(argc, argv, "a:c:fi:nS:s:h")) != -1) {
95 if (!bt_aton(optarg, &dst)) {
96 if ((he = bt_gethostbyname(optarg)) == NULL)
97 errx(1, "%s: %s", optarg, hstrerror(h_errno));
99 memcpy(&dst, he->h_addr, sizeof(dst));
104 count = strtol(optarg, &endp, 10);
105 if (count <= 0 || *endp != '\0')
114 wait = strtol(optarg, &endp, 10);
115 if (wait <= 0 || *endp != '\0')
124 if (!bt_aton(optarg, &src)) {
125 if ((he = bt_gethostbyname(optarg)) == NULL)
126 errx(1, "%s: %s", optarg, hstrerror(h_errno));
128 memcpy(&src, he->h_addr, sizeof(src));
133 echo_size = strtol(optarg, &endp, 10);
134 if (echo_size < sizeof(int32_t) ||
135 echo_size > NG_L2CAP_MAX_ECHO_SIZE ||
147 if (memcmp(&dst, NG_HCI_BDADDR_ANY, sizeof(dst)) == 0)
150 he = bt_gethostbyaddr((const char *)&dst, sizeof(dst), AF_BLUETOOTH);
151 if (he == NULL || he->h_name == NULL || he->h_name[0] == '\0' || numeric)
152 asprintf(&rname, "%s", bt_ntoa(&dst, NULL));
154 rname = strdup(he->h_name);
157 errx(1, "Failed to create remote hostname");
159 s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_L2CAP);
161 err(2, "Could not create socket");
163 memset(&sa, 0, sizeof(sa));
164 sa.l2cap_len = sizeof(sa);
165 sa.l2cap_family = AF_BLUETOOTH;
166 memcpy(&sa.l2cap_bdaddr, &src, sizeof(sa.l2cap_bdaddr));
168 if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
170 "Could not bind socket, src bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL));
172 memset(&sa, 0, sizeof(sa));
173 sa.l2cap_len = sizeof(sa);
174 sa.l2cap_family = AF_BLUETOOTH;
175 memcpy(&sa.l2cap_bdaddr, &dst, sizeof(sa.l2cap_bdaddr));
177 if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
179 "Could not connect socket, dst bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL));
182 for (n = 0; n < echo_size; ) {
183 int32_t avail = min(echo_size - n, PATTERN_SIZE);
185 memcpy(echo_data + n, pattern, avail);
190 for (n = 0; count == -1 || count > 0; n ++) {
191 struct ng_btsocket_l2cap_raw_ping r;
195 if (gettimeofday(&a, NULL) < 0)
196 err(5, "Could not gettimeofday(a)");
199 *((int32_t *) echo_data) = htonl(n);
202 r.echo_size = echo_size;
203 r.echo_data = echo_data;
204 if (ioctl(s, SIOC_L2CAP_L2CA_PING, &r, sizeof(r)) < 0) {
208 warn("Could not ping, dst bdaddr=%s",
209 bt_ntoa(&r.echo_dst, NULL));
213 if (gettimeofday(&b, NULL) < 0)
214 err(7, "Could not gettimeofday(b)");
219 "%d bytes from %s seq_no=%d time=%.3f ms result=%#x %s\n",
222 ntohl(*((int32_t *)(r.echo_data))),
223 tv2msec(&b), r.result,
224 ((fail == 0)? "" : strerror(errno)));
230 select(0, NULL, NULL, NULL, &a);
245 * a -= b, for timevals
249 tv_sub(struct timeval *a, struct timeval const *b)
251 if (a->tv_usec < b->tv_usec) {
252 a->tv_usec += 1000000;
256 a->tv_usec -= b->tv_usec;
257 a->tv_sec -= b->tv_sec;
265 tv2msec(struct timeval const *tvp)
267 return(((double)tvp->tv_usec)/1000.0 + ((double)tvp->tv_sec)*1000.0);
277 fprintf(stderr, "Usage: l2ping [-fhn] -a remote " \
278 "[-c count] [-i wait] [-S source] [-s size]\n");
279 fprintf(stderr, "Where:\n");
280 fprintf(stderr, " -a remote Specify remote device to ping\n");
281 fprintf(stderr, " -c count Number of packets to send\n");
282 fprintf(stderr, " -f No delay between packets\n");
283 fprintf(stderr, " -h Display this message\n");
284 fprintf(stderr, " -i wait Delay between packets (sec)\n");
285 fprintf(stderr, " -n Numeric output only\n");
286 fprintf(stderr, " -S source Specify source device\n");
287 fprintf(stderr, " -s size Packet size (bytes), " \
288 "between %zd and %zd\n", sizeof(int32_t), NG_L2CAP_MAX_ECHO_SIZE);