/* * l2ping.c * * Copyright (c) 2001-2002 Maksim Yevmenkin * 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 #include #include #include #include #include #include #include #include #include #include #include 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 = NULL; struct sockaddr_l2cap sa; struct ng_btsocket_l2cap_raw_ping r; int n, s, count, wait, flood, fail; struct timeval a, b; /* Set defaults */ memcpy(&src, NG_HCI_BDADDR_ANY, sizeof(src)); memcpy(&dst, NG_HCI_BDADDR_ANY, sizeof(dst)); memset(&r, 0, sizeof(r)); r.echo_data = calloc(NG_L2CAP_MAX_ECHO_SIZE, sizeof(u_int8_t)); if (r.echo_data == NULL) { fprintf(stderr, "Failed to allocate echo data buffer"); exit(1); } r.echo_size = 64; /* bytes */ count = -1; /* unlimited */ wait = 1; /* sec */ flood = 0; /* Parse command line arguments */ while ((n = getopt(argc, argv, "a:c:fi:n:s: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 '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 'c': count = atoi(optarg); if (count <= 0) usage(); break; case 'f': flood = 1; break; case 'i': wait = atoi(optarg); if (wait <= 0) usage(); break; case 's': r.echo_size = atoi(optarg); if ((int) r.echo_size < sizeof(int)) usage(); if (r.echo_size > NG_L2CAP_MAX_ECHO_SIZE) r.echo_size = NG_L2CAP_MAX_ECHO_SIZE; break; case 'h': default: usage(); break; } } if (memcmp(&dst, NG_HCI_BDADDR_ANY, sizeof(dst)) == 0) usage(); 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 < r.echo_size; ) { int avail = min(r.echo_size - n, PATTERN_SIZE); memcpy(r.echo_data + n, pattern, avail); n += avail; } /* Start ping'ing */ for (n = 0; count == -1 || count > 0; n ++) { if (gettimeofday(&a, NULL) < 0) err(5, "Could not gettimeofday(a)"); fail = 0; *((int *)(r.echo_data)) = htonl(n); 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, bt_ntoa(&dst, NULL), ntohl(*((int *)(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(r.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 -a bd_addr " \ "[-S bd_addr -c count -i wait -s size -h]\n"); fprintf(stderr, "Where:\n"); fprintf(stderr, "\t-S bd_addr - Source BD_ADDR\n"); fprintf(stderr, "\t-a bd_addr - Remote BD_ADDR to ping\n"); fprintf(stderr, "\t-c count - Number of packets to send\n"); fprintf(stderr, "\t-f - No delay (soft of flood)\n"); fprintf(stderr, "\t-i wait - Delay between packets (sec)\n"); fprintf(stderr, "\t-s size - Packet size (bytes), " \ "between %d and %d\n", sizeof(int), NG_L2CAP_MAX_ECHO_SIZE); fprintf(stderr, "\t-h - Display this message\n"); exit(255); } /* usage */