1107120Sjulian/* 2107120Sjulian * l2ping.c 3107120Sjulian * 4107120Sjulian * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 5107120Sjulian * All rights reserved. 6107120Sjulian * 7107120Sjulian * Redistribution and use in source and binary forms, with or without 8107120Sjulian * modification, are permitted provided that the following conditions 9107120Sjulian * are met: 10107120Sjulian * 1. Redistributions of source code must retain the above copyright 11107120Sjulian * notice, this list of conditions and the following disclaimer. 12107120Sjulian * 2. Redistributions in binary form must reproduce the above copyright 13107120Sjulian * notice, this list of conditions and the following disclaimer in the 14107120Sjulian * documentation and/or other materials provided with the distribution. 15107120Sjulian * 16107120Sjulian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17107120Sjulian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18107120Sjulian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19107120Sjulian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20107120Sjulian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21107120Sjulian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22107120Sjulian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23107120Sjulian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24107120Sjulian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25107120Sjulian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26107120Sjulian * SUCH DAMAGE. 27107120Sjulian * 28121054Semax * $Id: l2ping.c,v 1.5 2003/05/16 19:54:40 max Exp $ 29107120Sjulian * $FreeBSD$ 30107120Sjulian */ 31107120Sjulian 32107120Sjulian#include <sys/ioctl.h> 33107120Sjulian#include <sys/time.h> 34107120Sjulian#include <arpa/inet.h> 35107120Sjulian#include <netinet/in.h> 36107120Sjulian#include <assert.h> 37121054Semax#include <bluetooth.h> 38107120Sjulian#include <err.h> 39107120Sjulian#include <errno.h> 40220116Semax#include <limits.h> 41107120Sjulian#include <stdio.h> 42107120Sjulian#include <stdlib.h> 43107120Sjulian#include <string.h> 44107120Sjulian#include <unistd.h> 45107120Sjulian 46107120Sjulianstatic void usage (void); 47107120Sjulianstatic void tv_sub (struct timeval *, struct timeval const *); 48107120Sjulianstatic double tv2msec (struct timeval const *); 49107120Sjulian 50107120Sjulian#undef min 51107120Sjulian#define min(x, y) (((x) > (y))? (y) : (x)) 52107120Sjulian 53107120Sjulianstatic char const pattern[] = "1234567890-"; 54107120Sjulian#define PATTERN_SIZE (sizeof(pattern) - 1) 55107120Sjulian 56107120Sjulian/* 57107120Sjulian * Main 58107120Sjulian */ 59107120Sjulian 60107120Sjulianint 61107120Sjulianmain(int argc, char *argv[]) 62107120Sjulian{ 63125943Semax bdaddr_t src, dst; 64220116Semax struct hostent *he; 65220116Semax uint8_t *echo_data; 66125943Semax struct sockaddr_l2cap sa; 67133140Semax int32_t n, s, count, wait, flood, echo_size, numeric; 68220116Semax char *endp, *rname; 69107120Sjulian 70107120Sjulian /* Set defaults */ 71114879Sjulian memcpy(&src, NG_HCI_BDADDR_ANY, sizeof(src)); 72114879Sjulian memcpy(&dst, NG_HCI_BDADDR_ANY, sizeof(dst)); 73114879Sjulian 74125943Semax echo_data = (uint8_t *) calloc(NG_L2CAP_MAX_ECHO_SIZE, sizeof(uint8_t)); 75125943Semax if (echo_data == NULL) { 76107120Sjulian fprintf(stderr, "Failed to allocate echo data buffer"); 77107120Sjulian exit(1); 78107120Sjulian } 79107120Sjulian 80125943Semax /* 81125943Semax * Set default echo size to the NG_L2CAP_MTU_MINIMUM minus 82125943Semax * the size of the L2CAP signalling command header. 83125943Semax */ 84125943Semax 85125943Semax echo_size = NG_L2CAP_MTU_MINIMUM - sizeof(ng_l2cap_cmd_hdr_t); 86125943Semax count = -1; /* unimited */ 87125943Semax wait = 1; /* sec */ 88107120Sjulian flood = 0; 89133140Semax numeric = 0; 90107120Sjulian 91107120Sjulian /* Parse command line arguments */ 92133140Semax while ((n = getopt(argc, argv, "a:c:fi:nS:s:h")) != -1) { 93107120Sjulian switch (n) { 94107120Sjulian case 'a': 95121054Semax if (!bt_aton(optarg, &dst)) { 96121054Semax if ((he = bt_gethostbyname(optarg)) == NULL) 97121054Semax errx(1, "%s: %s", optarg, hstrerror(h_errno)); 98107120Sjulian 99121054Semax memcpy(&dst, he->h_addr, sizeof(dst)); 100121054Semax } 101121054Semax break; 102107120Sjulian 103107120Sjulian case 'c': 104220116Semax count = strtol(optarg, &endp, 10); 105220116Semax if (count <= 0 || *endp != '\0') 106107120Sjulian usage(); 107107120Sjulian break; 108107120Sjulian 109107120Sjulian case 'f': 110107120Sjulian flood = 1; 111107120Sjulian break; 112107120Sjulian 113107120Sjulian case 'i': 114220116Semax wait = strtol(optarg, &endp, 10); 115220116Semax if (wait <= 0 || *endp != '\0') 116107120Sjulian usage(); 117107120Sjulian break; 118107120Sjulian 119133140Semax case 'n': 120133140Semax numeric = 1; 121133140Semax break; 122133140Semax 123133140Semax case 'S': 124133140Semax if (!bt_aton(optarg, &src)) { 125133140Semax if ((he = bt_gethostbyname(optarg)) == NULL) 126133140Semax errx(1, "%s: %s", optarg, hstrerror(h_errno)); 127133140Semax 128133140Semax memcpy(&src, he->h_addr, sizeof(src)); 129133140Semax } 130133140Semax break; 131133140Semax 132107120Sjulian case 's': 133220116Semax echo_size = strtol(optarg, &endp, 10); 134220116Semax if (echo_size < sizeof(int32_t) || 135220116Semax echo_size > NG_L2CAP_MAX_ECHO_SIZE || 136220116Semax *endp != '\0') 137107120Sjulian usage(); 138107120Sjulian break; 139107120Sjulian 140114879Sjulian case 'h': 141107120Sjulian default: 142107120Sjulian usage(); 143107120Sjulian break; 144107120Sjulian } 145107120Sjulian } 146107120Sjulian 147114879Sjulian if (memcmp(&dst, NG_HCI_BDADDR_ANY, sizeof(dst)) == 0) 148107120Sjulian usage(); 149107120Sjulian 150133140Semax he = bt_gethostbyaddr((const char *)&dst, sizeof(dst), AF_BLUETOOTH); 151133140Semax if (he == NULL || he->h_name == NULL || he->h_name[0] == '\0' || numeric) 152133140Semax asprintf(&rname, "%s", bt_ntoa(&dst, NULL)); 153133140Semax else 154133140Semax rname = strdup(he->h_name); 155133140Semax 156133140Semax if (rname == NULL) 157133140Semax errx(1, "Failed to create remote hostname"); 158133140Semax 159107120Sjulian s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_L2CAP); 160107120Sjulian if (s < 0) 161107120Sjulian err(2, "Could not create socket"); 162107120Sjulian 163114879Sjulian memset(&sa, 0, sizeof(sa)); 164114879Sjulian sa.l2cap_len = sizeof(sa); 165114879Sjulian sa.l2cap_family = AF_BLUETOOTH; 166114879Sjulian memcpy(&sa.l2cap_bdaddr, &src, sizeof(sa.l2cap_bdaddr)); 167107120Sjulian 168114879Sjulian if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0) 169114879Sjulian err(3, 170121054Semax"Could not bind socket, src bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL)); 171107120Sjulian 172114879Sjulian memset(&sa, 0, sizeof(sa)); 173114879Sjulian sa.l2cap_len = sizeof(sa); 174114879Sjulian sa.l2cap_family = AF_BLUETOOTH; 175114879Sjulian memcpy(&sa.l2cap_bdaddr, &dst, sizeof(sa.l2cap_bdaddr)); 176107120Sjulian 177114879Sjulian if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0) 178114879Sjulian err(4, 179121054Semax"Could not connect socket, dst bdaddr=%s", bt_ntoa(&sa.l2cap_bdaddr, NULL)); 180114879Sjulian 181107120Sjulian /* Fill pattern */ 182125943Semax for (n = 0; n < echo_size; ) { 183125943Semax int32_t avail = min(echo_size - n, PATTERN_SIZE); 184107120Sjulian 185125943Semax memcpy(echo_data + n, pattern, avail); 186107120Sjulian n += avail; 187107120Sjulian } 188107120Sjulian 189107120Sjulian /* Start ping'ing */ 190107120Sjulian for (n = 0; count == -1 || count > 0; n ++) { 191125943Semax struct ng_btsocket_l2cap_raw_ping r; 192125943Semax struct timeval a, b; 193125943Semax int32_t fail; 194125943Semax 195107120Sjulian if (gettimeofday(&a, NULL) < 0) 196107120Sjulian err(5, "Could not gettimeofday(a)"); 197107120Sjulian 198107120Sjulian fail = 0; 199125943Semax *((int32_t *) echo_data) = htonl(n); 200125943Semax 201125943Semax r.result = 0; 202125943Semax r.echo_size = echo_size; 203125943Semax r.echo_data = echo_data; 204107120Sjulian if (ioctl(s, SIOC_L2CAP_L2CA_PING, &r, sizeof(r)) < 0) { 205107120Sjulian r.result = errno; 206107120Sjulian fail = 1; 207107120Sjulian/* 208121054Semax warn("Could not ping, dst bdaddr=%s", 209121054Semax bt_ntoa(&r.echo_dst, NULL)); 210107120Sjulian*/ 211107120Sjulian } 212107120Sjulian 213107120Sjulian if (gettimeofday(&b, NULL) < 0) 214107120Sjulian err(7, "Could not gettimeofday(b)"); 215107120Sjulian 216107120Sjulian tv_sub(&b, &a); 217107120Sjulian 218107120Sjulian fprintf(stdout, 219121054Semax"%d bytes from %s seq_no=%d time=%.3f ms result=%#x %s\n", 220121054Semax r.echo_size, 221133140Semax rname, 222125943Semax ntohl(*((int32_t *)(r.echo_data))), 223107120Sjulian tv2msec(&b), r.result, 224107120Sjulian ((fail == 0)? "" : strerror(errno))); 225107120Sjulian 226107120Sjulian if (!flood) { 227107120Sjulian /* Wait */ 228107120Sjulian a.tv_sec = wait; 229107120Sjulian a.tv_usec = 0; 230107120Sjulian select(0, NULL, NULL, NULL, &a); 231107120Sjulian } 232107120Sjulian 233107120Sjulian if (count != -1) 234107120Sjulian count --; 235107120Sjulian } 236107120Sjulian 237133140Semax free(rname); 238125943Semax free(echo_data); 239107120Sjulian close(s); 240107120Sjulian 241107120Sjulian return (0); 242107120Sjulian} /* main */ 243107120Sjulian 244107120Sjulian/* 245107120Sjulian * a -= b, for timevals 246107120Sjulian */ 247107120Sjulian 248107120Sjulianstatic void 249107120Sjuliantv_sub(struct timeval *a, struct timeval const *b) 250107120Sjulian{ 251107120Sjulian if (a->tv_usec < b->tv_usec) { 252107120Sjulian a->tv_usec += 1000000; 253107120Sjulian a->tv_sec -= 1; 254107120Sjulian } 255107120Sjulian 256107120Sjulian a->tv_usec -= b->tv_usec; 257107120Sjulian a->tv_sec -= b->tv_sec; 258107120Sjulian} /* tv_sub */ 259107120Sjulian 260107120Sjulian/* 261107120Sjulian * convert tv to msec 262107120Sjulian */ 263107120Sjulian 264107120Sjulianstatic double 265107120Sjuliantv2msec(struct timeval const *tvp) 266107120Sjulian{ 267107120Sjulian return(((double)tvp->tv_usec)/1000.0 + ((double)tvp->tv_sec)*1000.0); 268107120Sjulian} /* tv2msec */ 269107120Sjulian 270107120Sjulian/* 271107120Sjulian * Usage 272107120Sjulian */ 273107120Sjulian 274107120Sjulianstatic void 275107120Sjulianusage(void) 276107120Sjulian{ 277220116Semax fprintf(stderr, "Usage: l2ping [-fhn] -a remote " \ 278220116Semax "[-c count] [-i wait] [-S source] [-s size]\n"); 279107120Sjulian fprintf(stderr, "Where:\n"); 280133140Semax fprintf(stderr, " -a remote Specify remote device to ping\n"); 281133140Semax fprintf(stderr, " -c count Number of packets to send\n"); 282220116Semax fprintf(stderr, " -f No delay between packets\n"); 283133140Semax fprintf(stderr, " -h Display this message\n"); 284133140Semax fprintf(stderr, " -i wait Delay between packets (sec)\n"); 285133140Semax fprintf(stderr, " -n Numeric output only\n"); 286133140Semax fprintf(stderr, " -S source Specify source device\n"); 287133140Semax fprintf(stderr, " -s size Packet size (bytes), " \ 288128076Semax "between %zd and %zd\n", sizeof(int32_t), NG_L2CAP_MAX_ECHO_SIZE); 289107120Sjulian 290107120Sjulian exit(255); 291107120Sjulian} /* usage */ 292107120Sjulian 293