1 /* 2 * Copyright (c) 1983, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 /* 36 static char sccsid[] = "@(#)if.c 8.3 (Berkeley) 4/28/95"; 37 */ 38 static const char rcsid[] = 39 "$FreeBSD$"; 40 #endif /* not lint */ 41 42 #include <sys/types.h> 43 #include <sys/protosw.h> 44 #include <sys/socket.h> 45 #include <sys/sysctl.h> 46 #include <sys/time.h> 47 48 #include <net/if.h> 49 #include <net/if_var.h> 50 #include <net/if_dl.h> 51 #include <net/if_types.h> 52 #include <net/bridge.h> 53 #include <net/ethernet.h> 54 #include <netinet/in.h> 55 #include <netinet/in_var.h> 56 #include <netipx/ipx.h> 57 #include <netipx/ipx_if.h> 58 #ifdef NS 59 #include <netns/ns.h> 60 #include <netns/ns_if.h> 61 #endif 62 #ifdef ISO 63 #include <netiso/iso.h> 64 #include <netiso/iso_var.h> 65 #endif 66 #include <arpa/inet.h> 67 68 #include <signal.h> 69 #include <stdio.h> 70 #include <string.h> 71 #include <unistd.h> 72 73 #include "netstat.h" 74 75 #define YES 1 76 #define NO 0 77 78 static void sidewaysintpr __P((u_int, u_long)); 79 static void catchalarm __P((int)); 80 81 void 82 bdg_stats(u_long dummy, char *name) /* print bridge statistics */ 83 { 84 int i, slen ; 85 struct bdg_stats s ; 86 int mib[4] ; 87 88 slen = sizeof(s); 89 90 mib[0] = CTL_NET ; 91 mib[1] = PF_LINK ; 92 mib[2] = IFT_ETHER ; 93 mib[3] = PF_BDG ; 94 if (sysctl(mib,4, &s,&slen,NULL,0)==-1) 95 return ; /* no bridging */ 96 printf("-- Bridging statistics (%s) --\n", name) ; 97 printf( 98 "Name In Out Forward Drop Bcast Mcast Local Unknown\n"); 99 for (i = 0 ; i < 16 ; i++) { 100 if (s.s[i].name[0]) 101 printf("%-6s %9ld%9ld%9ld%9ld%9ld%9ld%9ld%9ld\n", 102 s.s[i].name, 103 s.s[i].p_in[(int)BDG_IN], 104 s.s[i].p_in[(int)BDG_OUT], 105 s.s[i].p_in[(int)BDG_FORWARD], 106 s.s[i].p_in[(int)BDG_DROP], 107 s.s[i].p_in[(int)BDG_BCAST], 108 s.s[i].p_in[(int)BDG_MCAST], 109 s.s[i].p_in[(int)BDG_LOCAL], 110 s.s[i].p_in[(int)BDG_UNKNOWN] ); 111 } 112 } 113 114 /* 115 * Print a description of the network interfaces. 116 */ 117 void 118 intpr(interval, ifnetaddr) 119 int interval; 120 u_long ifnetaddr; 121 { 122 struct ifnet ifnet; 123 struct ifnethead ifnethead; 124 union { 125 struct ifaddr ifa; 126 struct in_ifaddr in; 127 struct ipx_ifaddr ipx; 128 #ifdef NS 129 struct ns_ifaddr ns; 130 #endif 131 #ifdef ISO 132 struct iso_ifaddr iso; 133 #endif 134 } ifaddr; 135 u_long ifaddraddr; 136 u_long ifaddrfound; 137 u_long ifnetfound; 138 struct sockaddr *sa = NULL; 139 char name[32], tname[16]; 140 141 if (ifnetaddr == 0) { 142 printf("ifnet: symbol not defined\n"); 143 return; 144 } 145 if (interval) { 146 sidewaysintpr((unsigned)interval, ifnetaddr); 147 return; 148 } 149 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead)) 150 return; 151 ifnetaddr = (u_long)ifnethead.tqh_first; 152 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet)) 153 return; 154 155 printf("%-5.5s %-5.5s %-13.13s %-15.15s %8.8s %5.5s", 156 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs"); 157 if (bflag) 158 printf(" %10.10s","Ibytes"); 159 printf(" %8.8s %5.5s", "Opkts", "Oerrs"); 160 if (bflag) 161 printf(" %10.10s","Obytes"); 162 printf(" %5s", "Coll"); 163 if (tflag) 164 printf(" %s", "Time"); 165 if (dflag) 166 printf(" %s", "Drop"); 167 putchar('\n'); 168 ifaddraddr = 0; 169 while (ifnetaddr || ifaddraddr) { 170 struct sockaddr_in *sin; 171 register char *cp; 172 int n, m; 173 174 if (ifaddraddr == 0) { 175 ifnetfound = ifnetaddr; 176 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet) || 177 kread((u_long)ifnet.if_name, tname, 16)) 178 return; 179 tname[15] = '\0'; 180 ifnetaddr = (u_long)ifnet.if_link.tqe_next; 181 snprintf(name, 32, "%s%d", tname, ifnet.if_unit); 182 if (interface != 0 && (strcmp(name, interface) != 0)) 183 continue; 184 cp = index(name, '\0'); 185 if ((ifnet.if_flags&IFF_UP) == 0) 186 *cp++ = '*'; 187 *cp = '\0'; 188 ifaddraddr = (u_long)ifnet.if_addrhead.tqh_first; 189 } 190 printf("%-5.5s %-5lu ", name, ifnet.if_mtu); 191 ifaddrfound = ifaddraddr; 192 if (ifaddraddr == 0) { 193 printf("%-13.13s ", "none"); 194 printf("%-15.15s ", "none"); 195 } else { 196 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) { 197 ifaddraddr = 0; 198 continue; 199 } 200 #define CP(x) ((char *)(x)) 201 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) + 202 CP(&ifaddr); 203 sa = (struct sockaddr *)cp; 204 switch (sa->sa_family) { 205 case AF_UNSPEC: 206 printf("%-13.13s ", "none"); 207 printf("%-15.15s ", "none"); 208 break; 209 case AF_INET: 210 sin = (struct sockaddr_in *)sa; 211 #ifdef notdef 212 /* can't use inet_makeaddr because kernel 213 * keeps nets unshifted. 214 */ 215 in = inet_makeaddr(ifaddr.in.ia_subnet, 216 INADDR_ANY); 217 printf("%-13.13s ", netname(in.s_addr, 218 ifaddr.in.ia_subnetmask)); 219 #else 220 printf("%-13.13s ", 221 netname(htonl(ifaddr.in.ia_subnet), 222 ifaddr.in.ia_subnetmask)); 223 #endif 224 printf("%-15.15s ", 225 routename(sin->sin_addr.s_addr)); 226 break; 227 case AF_IPX: 228 { 229 struct sockaddr_ipx *sipx = 230 (struct sockaddr_ipx *)sa; 231 u_long net; 232 char netnum[10]; 233 234 *(union ipx_net *) &net = sipx->sipx_addr.x_net; 235 sprintf(netnum, "%lx", (u_long)ntohl(net)); 236 printf("ipx:%-8s ", netnum); 237 /* printf("ipx:%-8s ", netname(net, 0L)); */ 238 printf("%-15s ", 239 ipx_phost((struct sockaddr *)sipx)); 240 } 241 break; 242 243 case AF_APPLETALK: 244 printf("atalk:%-12.12s ",atalk_print(sa,0x10) ); 245 printf("%-9.9s ",atalk_print(sa,0x0b) ); 246 break; 247 #ifdef NS 248 case AF_NS: 249 { 250 struct sockaddr_ns *sns = 251 (struct sockaddr_ns *)sa; 252 u_long net; 253 char netnum[10]; 254 255 *(union ns_net *) &net = sns->sns_addr.x_net; 256 sprintf(netnum, "%lxH", ntohl(net)); 257 upHex(netnum); 258 printf("ns:%-8s ", netnum); 259 printf("%-15s ", 260 ns_phost((struct sockaddr *)sns)); 261 } 262 break; 263 #endif 264 case AF_LINK: 265 { 266 struct sockaddr_dl *sdl = 267 (struct sockaddr_dl *)sa; 268 cp = (char *)LLADDR(sdl); 269 n = sdl->sdl_alen; 270 } 271 m = printf("%-11.11s ", "<Link>"); 272 goto hexprint; 273 default: 274 m = printf("(%d)", sa->sa_family); 275 for (cp = sa->sa_len + (char *)sa; 276 --cp > sa->sa_data && (*cp == 0);) {} 277 n = cp - sa->sa_data + 1; 278 cp = sa->sa_data; 279 hexprint: 280 while (--n >= 0) 281 m += printf("%02x%c", *cp++ & 0xff, 282 n > 0 ? '.' : ' '); 283 m = 30 - m; 284 while (m-- > 0) 285 putchar(' '); 286 break; 287 } 288 ifaddraddr = (u_long)ifaddr.ifa.ifa_link.tqe_next; 289 } 290 printf("%8lu %5lu ", 291 ifnet.if_ipackets, ifnet.if_ierrors); 292 if (bflag) 293 printf("%10lu ", ifnet.if_ibytes); 294 printf("%8lu %5lu ", 295 ifnet.if_opackets, ifnet.if_oerrors); 296 if (bflag) 297 printf("%10lu ", ifnet.if_obytes); 298 printf("%5lu", ifnet.if_collisions); 299 if (tflag) 300 printf(" %3d", ifnet.if_timer); 301 if (dflag) 302 printf(" %3d", ifnet.if_snd.ifq_drops); 303 putchar('\n'); 304 if (aflag && ifaddrfound) { 305 /* 306 * Print family's multicast addresses 307 */ 308 u_long multiaddr; 309 struct ifmultiaddr ifma; 310 union { 311 struct sockaddr sa; 312 struct sockaddr_in in; 313 struct sockaddr_dl dl; 314 } msa; 315 const char *fmt; 316 317 for(multiaddr = (u_long)ifnet.if_multiaddrs.lh_first; 318 multiaddr; 319 multiaddr = (u_long)ifma.ifma_link.le_next) { 320 if (kread(multiaddr, (char *)&ifma, 321 sizeof ifma)) 322 break; 323 if (kread((u_long)ifma.ifma_addr, (char *)&msa, 324 sizeof msa)) 325 break; 326 if (msa.sa.sa_family != sa->sa_family) 327 continue; 328 329 fmt = 0; 330 switch (msa.sa.sa_family) { 331 case AF_INET: 332 fmt = routename(msa.in.sin_addr.s_addr); 333 break; 334 335 case AF_LINK: 336 switch (ifnet.if_type) { 337 case IFT_ETHER: 338 case IFT_FDDI: 339 fmt = ether_ntoa( 340 (struct ether_addr *) 341 LLADDR(&msa.dl)); 342 break; 343 } 344 break; 345 } 346 if (fmt) 347 printf("%23s %s\n", "", fmt); 348 } 349 } 350 } 351 } 352 353 #define MAXIF 10 354 struct iftot { 355 char ift_name[16]; /* interface name */ 356 u_int ift_ip; /* input packets */ 357 u_int ift_ie; /* input errors */ 358 u_int ift_op; /* output packets */ 359 u_int ift_oe; /* output errors */ 360 u_int ift_co; /* collisions */ 361 u_int ift_dr; /* drops */ 362 u_int ift_ib; /* input bytes */ 363 u_int ift_ob; /* output bytes */ 364 } iftot[MAXIF]; 365 366 u_char signalled; /* set if alarm goes off "early" */ 367 368 /* 369 * Print a running summary of interface statistics. 370 * Repeat display every interval seconds, showing statistics 371 * collected over that interval. Assumes that interval is non-zero. 372 * First line printed at top of screen is always cumulative. 373 * XXX - should be rewritten to use ifmib(4). 374 */ 375 static void 376 sidewaysintpr(interval, off) 377 unsigned interval; 378 u_long off; 379 { 380 struct ifnet ifnet; 381 u_long firstifnet; 382 struct ifnethead ifnethead; 383 register struct iftot *ip, *total; 384 register int line; 385 struct iftot *lastif, *sum, *interesting; 386 int oldmask, first; 387 u_long interesting_off; 388 389 if (kread(off, (char *)&ifnethead, sizeof ifnethead)) 390 return; 391 firstifnet = (u_long)ifnethead.tqh_first; 392 393 lastif = iftot; 394 sum = iftot + MAXIF - 1; 395 total = sum - 1; 396 interesting = NULL; 397 interesting_off = 0; 398 for (off = firstifnet, ip = iftot; off;) { 399 char name[16], tname[16]; 400 401 if (kread(off, (char *)&ifnet, sizeof ifnet)) 402 break; 403 if (kread((u_long)ifnet.if_name, tname, 16)) 404 break; 405 tname[15] = '\0'; 406 snprintf(name, 16, "%s%d", tname, ifnet.if_unit); 407 if (interface && strcmp(name, interface) == 0) { 408 interesting = ip; 409 interesting_off = off; 410 } 411 snprintf(ip->ift_name, 16, "(%s)", name);; 412 ip++; 413 if (ip >= iftot + MAXIF - 2) 414 break; 415 off = (u_long) ifnet.if_link.tqe_next; 416 } 417 lastif = ip; 418 419 (void)signal(SIGALRM, catchalarm); 420 signalled = NO; 421 (void)alarm(interval); 422 for (ip = iftot; ip < iftot + MAXIF; ip++) { 423 ip->ift_ip = 0; 424 ip->ift_ie = 0; 425 ip->ift_ib = 0; 426 ip->ift_op = 0; 427 ip->ift_oe = 0; 428 ip->ift_ob = 0; 429 ip->ift_co = 0; 430 ip->ift_dr = 0; 431 } 432 first = 1; 433 banner: 434 printf("%17s %14s %16s", "input", 435 interesting ? interesting->ift_name : "(Total)", "output"); 436 putchar('\n'); 437 printf("%10s %5s %10s %10s %5s %10s %5s", 438 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls"); 439 if (dflag) 440 printf(" %5.5s", "drops"); 441 putchar('\n'); 442 fflush(stdout); 443 line = 0; 444 loop: 445 if (interesting != NULL) { 446 ip = interesting; 447 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) { 448 printf("???\n"); 449 exit(1); 450 }; 451 if (!first) { 452 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu", 453 ifnet.if_ipackets - ip->ift_ip, 454 ifnet.if_ierrors - ip->ift_ie, 455 ifnet.if_ibytes - ip->ift_ib, 456 ifnet.if_opackets - ip->ift_op, 457 ifnet.if_oerrors - ip->ift_oe, 458 ifnet.if_obytes - ip->ift_ob, 459 ifnet.if_collisions - ip->ift_co); 460 if (dflag) 461 printf(" %5u", ifnet.if_snd.ifq_drops - ip->ift_dr); 462 } 463 ip->ift_ip = ifnet.if_ipackets; 464 ip->ift_ie = ifnet.if_ierrors; 465 ip->ift_ib = ifnet.if_ibytes; 466 ip->ift_op = ifnet.if_opackets; 467 ip->ift_oe = ifnet.if_oerrors; 468 ip->ift_ob = ifnet.if_obytes; 469 ip->ift_co = ifnet.if_collisions; 470 ip->ift_dr = ifnet.if_snd.ifq_drops; 471 } else { 472 sum->ift_ip = 0; 473 sum->ift_ie = 0; 474 sum->ift_ib = 0; 475 sum->ift_op = 0; 476 sum->ift_oe = 0; 477 sum->ift_ob = 0; 478 sum->ift_co = 0; 479 sum->ift_dr = 0; 480 for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) { 481 if (kread(off, (char *)&ifnet, sizeof ifnet)) { 482 off = 0; 483 continue; 484 } 485 sum->ift_ip += ifnet.if_ipackets; 486 sum->ift_ie += ifnet.if_ierrors; 487 sum->ift_ib += ifnet.if_ibytes; 488 sum->ift_op += ifnet.if_opackets; 489 sum->ift_oe += ifnet.if_oerrors; 490 sum->ift_ob += ifnet.if_obytes; 491 sum->ift_co += ifnet.if_collisions; 492 sum->ift_dr += ifnet.if_snd.ifq_drops; 493 off = (u_long) ifnet.if_link.tqe_next; 494 } 495 if (!first) { 496 printf("%10u %5u %10u %10u %5u %10u %5u", 497 sum->ift_ip - total->ift_ip, 498 sum->ift_ie - total->ift_ie, 499 sum->ift_ib - total->ift_ib, 500 sum->ift_op - total->ift_op, 501 sum->ift_oe - total->ift_oe, 502 sum->ift_ob - total->ift_ob, 503 sum->ift_co - total->ift_co); 504 if (dflag) 505 printf(" %5u", sum->ift_dr - total->ift_dr); 506 } 507 *total = *sum; 508 } 509 if (!first) 510 putchar('\n'); 511 fflush(stdout); 512 oldmask = sigblock(sigmask(SIGALRM)); 513 if (! signalled) { 514 sigpause(0); 515 } 516 sigsetmask(oldmask); 517 signalled = NO; 518 (void)alarm(interval); 519 line++; 520 first = 0; 521 if (line == 21) 522 goto banner; 523 else 524 goto loop; 525 /*NOTREACHED*/ 526 } 527 528 /* 529 * Called if an interval expires before sidewaysintpr has completed a loop. 530 * Sets a flag to not wait for the alarm. 531 */ 532 static void 533 catchalarm(signo) 534 int signo; 535 { 536 signalled = YES; 537 } 538