l2ping.c revision 107120
1/* 2 * l2ping.c 3 * 4 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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. 15 * 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 26 * SUCH DAMAGE. 27 * 28 * $Id: l2ping.c,v 1.9 2002/09/04 21:28:05 max Exp $ 29 * $FreeBSD: head/usr.sbin/bluetooth/l2ping/l2ping.c 107120 2002-11-20 23:01:59Z julian $ 30 */ 31 32#include <sys/types.h> 33#include <sys/ioctl.h> 34#include <sys/socket.h> 35#include <sys/time.h> 36#include <arpa/inet.h> 37#include <netinet/in.h> 38#include <assert.h> 39#include <bitstring.h> 40#include <err.h> 41#include <errno.h> 42#include <stdio.h> 43#include <stdlib.h> 44#include <string.h> 45#include <unistd.h> 46#include <ng_hci.h> 47#include <ng_l2cap.h> 48#include <ng_btsocket.h> 49 50static void usage (void); 51static void tv_sub (struct timeval *, struct timeval const *); 52static double tv2msec (struct timeval const *); 53 54#undef min 55#define min(x, y) (((x) > (y))? (y) : (x)) 56 57static char const pattern[] = "1234567890-"; 58#define PATTERN_SIZE (sizeof(pattern) - 1) 59 60/* 61 * Main 62 */ 63 64int 65main(int argc, char *argv[]) 66{ 67 struct ng_btsocket_l2cap_raw_ping r; 68 int n, s, count, wait, flood, fail; 69 struct timeval a, b; 70 71 /* Set defaults */ 72 memset(&r, 0, sizeof(r)); 73 r.echo_data = calloc(NG_L2CAP_MAX_ECHO_SIZE, sizeof(u_int8_t)); 74 if (r.echo_data == NULL) { 75 fprintf(stderr, "Failed to allocate echo data buffer"); 76 exit(1); 77 } 78 79 r.echo_size = 64; /* bytes */ 80 count = -1; /* unlimited */ 81 wait = 1; /* sec */ 82 flood = 0; 83 84 /* Parse command line arguments */ 85 while ((n = getopt(argc, argv, "a:c:fi:n:s:S:")) != -1) { 86 switch (n) { 87 case 'a': 88 case 'S': { 89 int a0, a1, a2, a3, a4, a5; 90 91 if (sscanf(optarg, "%x:%x:%x:%x:%x:%x", 92 &a5, &a4, &a3, &a2, &a1, &a0) != 6) 93 usage(); 94 95 if (n == 'a') { 96 /* destination bdaddr */ 97 r.echo_dst.b[0] = (a0 & 0xff); 98 r.echo_dst.b[1] = (a1 & 0xff); 99 r.echo_dst.b[2] = (a2 & 0xff); 100 r.echo_dst.b[3] = (a3 & 0xff); 101 r.echo_dst.b[4] = (a4 & 0xff); 102 r.echo_dst.b[5] = (a5 & 0xff); 103 } else { 104 /* source bdaddr */ 105 r.echo_src.b[0] = (a0 & 0xff); 106 r.echo_src.b[1] = (a1 & 0xff); 107 r.echo_src.b[2] = (a2 & 0xff); 108 r.echo_src.b[3] = (a3 & 0xff); 109 r.echo_src.b[4] = (a4 & 0xff); 110 r.echo_src.b[5] = (a5 & 0xff); 111 } 112 } break; 113 114 case 'c': 115 count = atoi(optarg); 116 if (count <= 0) 117 usage(); 118 break; 119 120 case 'f': 121 flood = 1; 122 break; 123 124 case 'i': 125 wait = atoi(optarg); 126 if (wait <= 0) 127 usage(); 128 break; 129 130 case 's': 131 r.echo_size = atoi(optarg); 132 if ((int) r.echo_size < sizeof(int)) 133 usage(); 134 135 if (r.echo_size > NG_L2CAP_MAX_ECHO_SIZE) 136 r.echo_size = NG_L2CAP_MAX_ECHO_SIZE; 137 break; 138 139 default: 140 usage(); 141 break; 142 } 143 } 144 145 if (memcmp(&r.echo_dst, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) == 0) 146 usage(); 147 148 s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_L2CAP); 149 if (s < 0) 150 err(2, "Could not create socket"); 151 152 if (memcmp(&r.echo_src, NG_HCI_BDADDR_ANY, sizeof(bdaddr_t)) != 0) { 153 struct sockaddr_l2cap sa; 154 155 memset(&sa, 0, sizeof(sa)); 156 sa.l2cap_len = sizeof(sa); 157 sa.l2cap_family = AF_BLUETOOTH; 158 memcpy(&sa.l2cap_bdaddr, &r.echo_src, sizeof(bdaddr_t)); 159 160 if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0) 161 err(3, 162"Could not bind socket, src bdaddr=%x:%x:%x:%x:%x:%x", 163 sa.l2cap_bdaddr.b[5], sa.l2cap_bdaddr.b[4], 164 sa.l2cap_bdaddr.b[3], sa.l2cap_bdaddr.b[2], 165 sa.l2cap_bdaddr.b[1], sa.l2cap_bdaddr.b[0]); 166 167 if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0) 168 err(4, 169"Could not connect socket, src bdaddr=%x:%x:%x:%x:%x:%x", 170 sa.l2cap_bdaddr.b[5], sa.l2cap_bdaddr.b[4], 171 sa.l2cap_bdaddr.b[3], sa.l2cap_bdaddr.b[2], 172 sa.l2cap_bdaddr.b[1], sa.l2cap_bdaddr.b[0]); 173 } 174 175 /* Fill pattern */ 176 for (n = 0; n < r.echo_size; ) { 177 int avail = min(r.echo_size - n, PATTERN_SIZE); 178 179 memcpy(r.echo_data + n, pattern, avail); 180 n += avail; 181 } 182 183 /* Start ping'ing */ 184 for (n = 0; count == -1 || count > 0; n ++) { 185 if (gettimeofday(&a, NULL) < 0) 186 err(5, "Could not gettimeofday(a)"); 187 188 fail = 0; 189 *((int *)(r.echo_data)) = htonl(n); 190 if (ioctl(s, SIOC_L2CAP_L2CA_PING, &r, sizeof(r)) < 0) { 191 r.result = errno; 192 fail = 1; 193/* 194 warn("Could not ping, dst bdaddr=%x:%x:%x:%x:%x:%x", 195 r.echo_dst.b[5], r.echo_dst.b[4], 196 r.echo_dst.b[3], r.echo_dst.b[2], 197 r.echo_dst.b[1], r.echo_dst.b[0]); 198*/ 199 } 200 201 if (gettimeofday(&b, NULL) < 0) 202 err(7, "Could not gettimeofday(b)"); 203 204 tv_sub(&b, &a); 205 206 fprintf(stdout, 207"%d bytes from %x:%x:%x:%x:%x:%x seq_no=%d time=%.3f ms result=%#x %s\n", 208 r.echo_size, 209 r.echo_dst.b[5], r.echo_dst.b[4], 210 r.echo_dst.b[3], r.echo_dst.b[2], 211 r.echo_dst.b[1], r.echo_dst.b[0], 212 ntohl(*((int *)(r.echo_data))), 213 tv2msec(&b), r.result, 214 ((fail == 0)? "" : strerror(errno))); 215 216 if (!flood) { 217 /* Wait */ 218 a.tv_sec = wait; 219 a.tv_usec = 0; 220 select(0, NULL, NULL, NULL, &a); 221 } 222 223 if (count != -1) 224 count --; 225 } 226 227 free(r.echo_data); 228 close(s); 229 230 return (0); 231} /* main */ 232 233/* 234 * a -= b, for timevals 235 */ 236 237static void 238tv_sub(struct timeval *a, struct timeval const *b) 239{ 240 if (a->tv_usec < b->tv_usec) { 241 a->tv_usec += 1000000; 242 a->tv_sec -= 1; 243 } 244 245 a->tv_usec -= b->tv_usec; 246 a->tv_sec -= b->tv_sec; 247} /* tv_sub */ 248 249/* 250 * convert tv to msec 251 */ 252 253static double 254tv2msec(struct timeval const *tvp) 255{ 256 return(((double)tvp->tv_usec)/1000.0 + ((double)tvp->tv_sec)*1000.0); 257} /* tv2msec */ 258 259/* 260 * Usage 261 */ 262 263static void 264usage(void) 265{ 266 fprintf(stderr, "Usage: l2ping -a bd_addr " \ 267 "[-S bd_addr -c count -i wait -s size]\n"); 268 fprintf(stderr, "Where:\n"); 269 fprintf(stderr, "\t-S bd_addr - Source BD_ADDR\n"); 270 fprintf(stderr, "\t-a bd_addr - Remote BD_ADDR to ping\n"); 271 fprintf(stderr, "\t-c count - Number of packets to send\n"); 272 fprintf(stderr, "\t-f - No delay (soft of flood)\n"); 273 fprintf(stderr, "\t-i wait - Delay between packets (sec)\n"); 274 fprintf(stderr, "\t-s size - Packet size (bytes), " \ 275 "between %d and %d\n", sizeof(int), NG_L2CAP_MAX_ECHO_SIZE); 276 277 exit(255); 278} /* usage */ 279 280