1 /* $NetBSD: main.c,v 1.46 2004/06/27 01:10:54 jonathan Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1988, 1993 5 * Regents of the University of California. 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 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1983, 1988, 1993\n\ 35 Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "from: @(#)main.c 8.4 (Berkeley) 3/1/94"; 41 #else 42 __RCSID("$NetBSD: main.c,v 1.46 2004/06/27 01:10:54 jonathan Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/file.h> 48 #include <sys/protosw.h> 49 #include <sys/socket.h> 50 51 #include <net/if.h> 52 #include <netinet/in.h> 53 54 #include <ctype.h> 55 #include <err.h> 56 #include <errno.h> 57 #include <kvm.h> 58 #include <limits.h> 59 #include <netdb.h> 60 #include <nlist.h> 61 #include <paths.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <unistd.h> 66 #include "netstat.h" 67 68 struct nlist nl[] = { 69 #define N_MBSTAT 0 70 { "_mbstat" }, 71 #define N_IPSTAT 1 72 { "_ipstat" }, 73 #define N_TCBTABLE 2 74 { "_tcbtable" }, 75 #define N_TCPSTAT 3 76 { "_tcpstat" }, 77 #define N_UDBTABLE 4 78 { "_udbtable" }, 79 #define N_UDPSTAT 5 80 { "_udpstat" }, 81 #define N_IFNET 6 82 { "_ifnet" }, 83 #define N_IMP 7 84 { "_imp_softc" }, 85 #define N_ICMPSTAT 8 86 { "_icmpstat" }, 87 #define N_RTSTAT 9 88 { "_rtstat" }, 89 #define N_UNIXSW 10 90 { "_unixsw" }, 91 #define N_IDP 11 92 { "_nspcb"}, 93 #define N_IDPSTAT 12 94 { "_idpstat"}, 95 #define N_SPPSTAT 13 96 { "_spp_istat"}, 97 #define N_NSERR 14 98 { "_ns_errstat"}, 99 #define N_CLNPSTAT 15 100 { "_clnp_stat"}, 101 #define IN_NOTUSED 16 102 { "_tp_inpcb" }, 103 #define ISO_TP 17 104 { "_tp_refinfo" }, 105 #define N_TPSTAT 18 106 { "_tp_stat" }, 107 #define N_ESISSTAT 19 108 { "_esis_stat"}, 109 #define N_NIMP 20 110 { "_nimp"}, 111 #define N_RTREE 21 112 { "_rt_tables"}, 113 #define N_CLTP 22 114 { "_cltb"}, 115 #define N_CLTPSTAT 23 116 { "_cltpstat"}, 117 #define N_NFILE 24 118 { "_nfile" }, 119 #define N_FILE 25 120 { "_file" }, 121 #define N_IGMPSTAT 26 122 { "_igmpstat" }, 123 #define N_MRTPROTO 27 124 { "_ip_mrtproto" }, 125 #define N_MRTSTAT 28 126 { "_mrtstat" }, 127 #define N_MFCHASHTBL 29 128 { "_mfchashtbl" }, 129 #define N_MFCHASH 30 130 { "_mfchash" }, 131 #define N_VIFTABLE 31 132 { "_viftable" }, 133 #define N_MSIZE 32 134 { "_msize" }, 135 #define N_MCLBYTES 33 136 { "_mclbytes" }, 137 #define N_DDPSTAT 34 138 { "_ddpstat"}, 139 #define N_DDPCB 35 140 { "_ddpcb"}, 141 #define N_MBPOOL 36 142 { "_mbpool" }, 143 #define N_MCLPOOL 37 144 { "_mclpool" }, 145 #define N_DIVPCB 38 146 { "_divcb"}, 147 #define N_DIVSTAT 39 148 { "_divstat"}, 149 #define N_IP6STAT 40 150 { "_ip6stat" }, 151 #define N_TCP6STAT 41 152 { "_tcp6stat" }, 153 #define N_UDP6STAT 42 154 { "_udp6stat" }, 155 #define N_ICMP6STAT 43 156 { "_icmp6stat" }, 157 #define N_IPSECSTAT 44 158 { "_ipsecstat" }, 159 #define N_IPSEC6STAT 45 160 { "_ipsec6stat" }, 161 #define N_PIM6STAT 46 162 { "_pim6stat" }, 163 #define N_MRT6PROTO 47 164 { "_ip6_mrtproto" }, 165 #define N_MRT6STAT 48 166 { "_mrt6stat" }, 167 #define N_MF6CTABLE 49 168 { "_mf6ctable" }, 169 #define N_MIF6TABLE 50 170 { "_mif6table" }, 171 #define N_PFKEYSTAT 51 172 { "_pfkeystat" }, 173 #define N_ARPSTAT 52 174 { "_arpstat" }, 175 #define N_RIP6STAT 53 176 { "_rip6stat" }, 177 #define N_ARPINTRQ 54 178 { "_arpintrq" }, 179 #define N_IPINTRQ 55 180 { "_ipintrq" }, 181 #define N_IP6INTRQ 56 182 { "_ip6intrq" }, 183 #define N_ATINTRQ1 57 184 { "_atintrq1" }, 185 #define N_ATINTRQ2 58 186 { "_atintrq2" }, 187 #define N_NSINTRQ 59 188 { "_nsintrq" }, 189 #define N_CLNLINTRQ 60 190 { "_clnlintrq" }, 191 #define N_LLCINTRQ 61 192 { "_llcintrq" }, 193 #define N_HDINTRQ 62 194 { "_hdintrq" }, 195 #define N_NATMINTRQ 63 196 { "_natmintrq" }, 197 #define N_PPPOEDISCINQ 64 198 { "_ppoediscinq" }, 199 #define N_PPPOEINQ 65 200 { "_ppoeinq" }, 201 #define N_PKINTRQ 66 202 { "_pkintrq" }, 203 #define N_HARDCLOCK_TICKS 67 204 { "_hardclock_ticks" }, 205 { "" }, 206 }; 207 208 struct protox { 209 u_char pr_index; /* index into nlist of cb head */ 210 u_char pr_sindex; /* index into nlist of stat block */ 211 u_char pr_wanted; /* 1 if wanted, 0 otherwise */ 212 void (*pr_cblocks) /* control blocks printing routine */ 213 __P((u_long, char *)); 214 void (*pr_stats) /* statistics printing routine */ 215 __P((u_long, char *)); 216 void (*pr_istats) 217 __P((char *)); /* per/if statistics printing routine */ 218 void (*pr_dump) /* PCB state dump routine */ 219 __P((u_long)); 220 char *pr_name; /* well-known name */ 221 } protox[] = { 222 { N_TCBTABLE, N_TCPSTAT, 1, protopr, 223 tcp_stats, NULL, tcp_dump, "tcp" }, 224 { N_UDBTABLE, N_UDPSTAT, 1, protopr, 225 udp_stats, NULL, 0, "udp" }, 226 { -1, N_IPSTAT, 1, 0, 227 ip_stats, NULL, 0, "ip" }, 228 { -1, N_ICMPSTAT, 1, 0, 229 icmp_stats, NULL, 0, "icmp" }, 230 { -1, N_IGMPSTAT, 1, 0, 231 igmp_stats, NULL, 0, "igmp" }, 232 #ifdef IPSEC 233 { -1, N_IPSECSTAT, 1, 0, 234 ipsec_switch, NULL, 0, "ipsec" }, 235 #endif 236 { -1, -1, 0, 0, 237 0, NULL, 0, 0 } 238 }; 239 240 #ifdef INET6 241 struct protox ip6protox[] = { 242 { -1, N_IP6STAT, 1, 0, 243 ip6_stats, ip6_ifstats, 0, "ip6" }, 244 { -1, N_ICMP6STAT, 1, 0, 245 icmp6_stats, icmp6_ifstats, 0, "icmp6" }, 246 #ifdef TCP6 247 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 248 tcp6_stats, NULL, tcp6_dump, "tcp6" }, 249 #else 250 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 251 tcp_stats, NULL, tcp_dump, "tcp6" }, 252 #endif 253 { N_UDBTABLE, N_UDP6STAT, 1, ip6protopr, 254 udp6_stats, NULL, 0, "udp6" }, 255 #ifdef IPSEC 256 { -1, N_IPSEC6STAT, 1, 0, 257 ipsec_switch, NULL, 0, "ipsec6" }, 258 #endif 259 { -1, N_PIM6STAT, 1, 0, 260 pim6_stats, NULL, 0, "pim6" }, 261 { -1, N_RIP6STAT, 1, 0, 262 rip6_stats, NULL, 0, "rip6" }, 263 { -1, -1, 0, 0, 264 0, NULL, 0, 0 } 265 }; 266 #endif 267 268 struct protox arpprotox[] = { 269 { -1, N_ARPSTAT, 1, 0, 270 arp_stats, NULL, 0, "arp" }, 271 { -1, -1, 0, 0, 272 0, NULL, 0, 0 } 273 }; 274 275 #ifdef IPSEC 276 struct protox pfkeyprotox[] = { 277 { -1, N_PFKEYSTAT, 1, 0, 278 pfkey_stats, NULL, 0, "pfkey" }, 279 { -1, -1, 0, 0, 280 0, NULL, 0, 0 } 281 }; 282 #endif 283 284 #ifndef SMALL 285 struct protox atalkprotox[] = { 286 { N_DDPCB, N_DDPSTAT, 1, atalkprotopr, 287 ddp_stats, NULL, 0, "ddp" }, 288 { -1, -1, 0, 0, 289 0, NULL, 0 } 290 }; 291 292 struct protox nsprotox[] = { 293 { N_IDP, N_IDPSTAT, 1, nsprotopr, 294 idp_stats, NULL, 0, "idp" }, 295 { N_IDP, N_SPPSTAT, 1, nsprotopr, 296 spp_stats, NULL, 0, "spp" }, 297 { -1, N_NSERR, 1, 0, 298 nserr_stats, NULL, 0, "ns_err" }, 299 { -1, -1, 0, 0, 300 0, NULL, 0 } 301 }; 302 303 struct protox isoprotox[] = { 304 { ISO_TP, N_TPSTAT, 1, iso_protopr, 305 tp_stats, NULL, 0, "tp" }, 306 { N_CLTP, N_CLTPSTAT, 1, iso_protopr, 307 cltp_stats, NULL, 0, "cltp" }, 308 { -1, N_CLNPSTAT, 1, 0, 309 clnp_stats, NULL, 0, "clnp"}, 310 { -1, N_ESISSTAT, 1, 0, 311 esis_stats, NULL, 0, "esis"}, 312 { -1, -1, 0, 0, 313 0, NULL, 0, 0 } 314 }; 315 #endif 316 317 struct protox *protoprotox[] = { protox, 318 #ifdef INET6 319 ip6protox, 320 #endif 321 arpprotox, 322 #ifdef IPSEC 323 pfkeyprotox, 324 #endif 325 #ifndef SMALL 326 atalkprotox, nsprotox, isoprotox, 327 #endif 328 NULL }; 329 330 const struct softintrq { 331 const char *siq_name; 332 int siq_index; 333 } softintrq[] = { 334 { "arpintrq", N_ARPINTRQ }, 335 { "ipintrq", N_IPINTRQ }, 336 { "ip6intrq", N_IP6INTRQ }, 337 { "atintrq1", N_ATINTRQ1 }, 338 { "atintrq2", N_ATINTRQ2 }, 339 { "nsintrq", N_NSINTRQ }, 340 { "clnlintrq", N_CLNLINTRQ }, 341 { "llcintrq", N_LLCINTRQ }, 342 { "hdintrq", N_HDINTRQ }, 343 { "natmintrq", N_NATMINTRQ }, 344 { "ppoediscinq", N_PPPOEDISCINQ }, 345 { "ppoeinq", N_PPPOEINQ }, 346 { "pkintrq", N_PKINTRQ }, 347 { NULL, -1 }, 348 }; 349 350 int main __P((int, char *[])); 351 static void printproto __P((struct protox *, char *)); 352 static void print_softintrq __P((void)); 353 static void usage __P((void)); 354 static struct protox *name2protox __P((char *)); 355 static struct protox *knownname __P((char *)); 356 357 kvm_t *kvmd; 358 359 int 360 main(argc, argv) 361 int argc; 362 char *argv[]; 363 { 364 struct protoent *p; 365 struct protox *tp; /* for printing cblocks & stats */ 366 int ch; 367 char *nlistf = NULL, *memf = NULL; 368 char buf[_POSIX2_LINE_MAX], *cp; 369 u_long pcbaddr; 370 gid_t egid = getegid(); 371 372 (void)setegid(getgid()); 373 tp = NULL; 374 af = AF_UNSPEC; 375 pcbaddr = 0; 376 377 while ((ch = getopt(argc, argv, 378 "Aabdf:ghI:LliM:mN:nP:p:qrsStuvw:")) != -1) 379 switch (ch) { 380 case 'A': 381 Aflag = 1; 382 break; 383 case 'a': 384 aflag = 1; 385 break; 386 case 'b': 387 bflag = 1; 388 break; 389 case 'd': 390 dflag = 1; 391 break; 392 case 'f': 393 if (strcmp(optarg, "ns") == 0) 394 af = AF_NS; 395 else if (strcmp(optarg, "inet") == 0) 396 af = AF_INET; 397 else if (strcmp(optarg, "inet6") == 0) 398 af = AF_INET6; 399 else if (strcmp(optarg, "arp") == 0) 400 af = AF_ARP; 401 else if (strcmp(optarg, "pfkey") == 0) 402 af = PF_KEY; 403 else if (strcmp(optarg, "unix") == 0 404 || strcmp(optarg, "local") == 0) 405 af = AF_LOCAL; 406 else if (strcmp(optarg, "iso") == 0) 407 af = AF_ISO; 408 else if (strcmp(optarg, "atalk") == 0) 409 af = AF_APPLETALK; 410 else 411 errx(1, "%s: unknown address family", 412 optarg); 413 break; 414 #ifndef SMALL 415 case 'g': 416 gflag = 1; 417 break; 418 #endif 419 case 'I': 420 iflag = 1; 421 interface = optarg; 422 break; 423 case 'i': 424 iflag = 1; 425 break; 426 case 'L': 427 Lflag = 1; 428 break; 429 case 'l': 430 lflag = 1; 431 break; 432 case 'M': 433 memf = optarg; 434 break; 435 case 'm': 436 mflag = 1; 437 break; 438 case 'N': 439 nlistf = optarg; 440 break; 441 case 'n': 442 numeric_addr = numeric_port = 1; 443 break; 444 case 'P': 445 errno = 0; 446 pcbaddr = strtoul(optarg, &cp, 16); 447 if (*cp != '\0' || errno == ERANGE) 448 errx(1, "invalid PCB address %s", 449 optarg); 450 Pflag = 1; 451 break; 452 case 'p': 453 if ((tp = name2protox(optarg)) == NULL) 454 errx(1, "%s: unknown or uninstrumented protocol", 455 optarg); 456 pflag = 1; 457 break; 458 case 'q': 459 qflag = 1; 460 break; 461 case 'r': 462 rflag = 1; 463 break; 464 case 's': 465 ++sflag; 466 break; 467 case 'S': 468 numeric_addr = 1; 469 break; 470 case 't': 471 tflag = 1; 472 break; 473 case 'u': 474 af = AF_LOCAL; 475 break; 476 case 'v': 477 vflag++; 478 break; 479 case 'w': 480 interval = atoi(optarg); 481 iflag = 1; 482 break; 483 case '?': 484 default: 485 usage(); 486 } 487 argv += optind; 488 argc -= optind; 489 490 #define BACKWARD_COMPATIBILITY 491 #ifdef BACKWARD_COMPATIBILITY 492 if (*argv) { 493 if (isdigit(**argv)) { 494 interval = atoi(*argv); 495 if (interval <= 0) 496 usage(); 497 ++argv; 498 iflag = 1; 499 } 500 if (*argv) { 501 nlistf = *argv; 502 if (*++argv) 503 memf = *argv; 504 } 505 } 506 #endif 507 508 /* 509 * Discard setgid privileges. If not the running kernel, we toss 510 * them away totally so that bad guys can't print interesting stuff 511 * from kernel memory, otherwise switch back to kmem for the 512 * duration of the kvm_openfiles() call. 513 */ 514 if (nlistf != NULL || memf != NULL || Pflag) 515 (void)setgid(getgid()); 516 else 517 (void)setegid(egid); 518 519 use_sysctl = (nlistf == NULL && memf == NULL); 520 521 if ((kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, 522 buf)) == NULL) 523 errx(1, "%s", buf); 524 525 /* do this now anyway */ 526 if (nlistf == NULL && memf == NULL) 527 (void)setgid(getgid()); 528 529 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 530 if (nlistf) 531 errx(1, "%s: no namelist", nlistf); 532 else 533 errx(1, "no namelist"); 534 } 535 if (mflag) { 536 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 537 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 538 nl[N_MCLPOOL].n_value); 539 exit(0); 540 } 541 if (Pflag) { 542 if (tp == NULL) { 543 /* Default to TCP. */ 544 tp = name2protox("tcp"); 545 } 546 if (tp->pr_dump) 547 (*tp->pr_dump)(pcbaddr); 548 else 549 printf("%s: no PCB dump routine\n", tp->pr_name); 550 exit(0); 551 } 552 if (pflag) { 553 if (iflag && tp->pr_istats) 554 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 555 else if (tp->pr_stats) 556 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 557 tp->pr_name); 558 else 559 printf("%s: no stats routine\n", tp->pr_name); 560 exit(0); 561 } 562 if (qflag) { 563 print_softintrq(); 564 exit(0); 565 } 566 /* 567 * Keep file descriptors open to avoid overhead 568 * of open/close on each call to get* routines. 569 */ 570 sethostent(1); 571 setnetent(1); 572 if (iflag) { 573 if (af != AF_UNSPEC) 574 goto protostat; 575 576 intpr(interval, nl[N_IFNET].n_value, NULL); 577 exit(0); 578 } 579 if (rflag) { 580 if (sflag) 581 rt_stats(nl[N_RTSTAT].n_value); 582 else 583 routepr(nl[N_RTREE].n_value); 584 exit(0); 585 } 586 #ifndef SMALL 587 if (gflag) { 588 if (sflag) { 589 if (af == AF_INET || af == AF_UNSPEC) 590 mrt_stats(nl[N_MRTPROTO].n_value, 591 nl[N_MRTSTAT].n_value); 592 #ifdef INET6 593 if (af == AF_INET6 || af == AF_UNSPEC) 594 mrt6_stats(nl[N_MRT6PROTO].n_value, 595 nl[N_MRT6STAT].n_value); 596 #endif 597 } 598 else { 599 if (af == AF_INET || af == AF_UNSPEC) 600 mroutepr(nl[N_MRTPROTO].n_value, 601 nl[N_MFCHASHTBL].n_value, 602 nl[N_MFCHASH].n_value, 603 nl[N_VIFTABLE].n_value); 604 #ifdef INET6 605 if (af == AF_INET6 || af == AF_UNSPEC) 606 mroute6pr(nl[N_MRT6PROTO].n_value, 607 nl[N_MF6CTABLE].n_value, 608 nl[N_MIF6TABLE].n_value); 609 #endif 610 } 611 exit(0); 612 } 613 #endif 614 protostat: 615 if (af == AF_INET || af == AF_UNSPEC) { 616 setprotoent(1); 617 setservent(1); 618 /* ugh, this is O(MN) ... why do we do this? */ 619 while ((p = getprotoent()) != NULL) { 620 for (tp = protox; tp->pr_name; tp++) 621 if (strcmp(tp->pr_name, p->p_name) == 0) 622 break; 623 if (tp->pr_name == 0 || tp->pr_wanted == 0) 624 continue; 625 printproto(tp, p->p_name); 626 tp->pr_wanted = 0; 627 } 628 endprotoent(); 629 for (tp = protox; tp->pr_name; tp++) 630 if (tp->pr_wanted) 631 printproto(tp, tp->pr_name); 632 } 633 #ifdef INET6 634 if (af == AF_INET6 || af == AF_UNSPEC) 635 for (tp = ip6protox; tp->pr_name; tp++) 636 printproto(tp, tp->pr_name); 637 #endif 638 if (af == AF_ARP || af == AF_UNSPEC) 639 for (tp = arpprotox; tp->pr_name; tp++) 640 printproto(tp, tp->pr_name); 641 #ifdef IPSEC 642 if (af == PF_KEY || af == AF_UNSPEC) 643 for (tp = pfkeyprotox; tp->pr_name; tp++) 644 printproto(tp, tp->pr_name); 645 #endif 646 #ifndef SMALL 647 if (af == AF_APPLETALK || af == AF_UNSPEC) 648 for (tp = atalkprotox; tp->pr_name; tp++) 649 printproto(tp, tp->pr_name); 650 if (af == AF_NS || af == AF_UNSPEC) 651 for (tp = nsprotox; tp->pr_name; tp++) 652 printproto(tp, tp->pr_name); 653 if (af == AF_ISO || af == AF_UNSPEC) 654 for (tp = isoprotox; tp->pr_name; tp++) 655 printproto(tp, tp->pr_name); 656 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 657 unixpr(nl[N_UNIXSW].n_value); 658 #endif 659 exit(0); 660 } 661 662 /* 663 * Print out protocol statistics or control blocks (per sflag). 664 * If the interface was not specifically requested, and the symbol 665 * is not in the namelist, ignore this one. 666 */ 667 static void 668 printproto(tp, name) 669 struct protox *tp; 670 char *name; 671 { 672 void (*pr) __P((u_long, char *)); 673 u_long off; 674 675 if (sflag) { 676 if (iflag) { 677 if (tp->pr_istats) 678 intpr(interval, nl[N_IFNET].n_value, 679 tp->pr_istats); 680 return; 681 } 682 else { 683 pr = tp->pr_stats; 684 off = nl[tp->pr_sindex].n_value; 685 } 686 } else { 687 pr = tp->pr_cblocks; 688 off = nl[tp->pr_index].n_value; 689 } 690 if (pr != NULL && (off || af != AF_UNSPEC)) 691 (*pr)(off, name); 692 } 693 694 /* 695 * Print softintrq status. 696 */ 697 void 698 print_softintrq() 699 { 700 struct ifqueue intrq, *ifq = &intrq; 701 const struct softintrq *siq; 702 u_long off; 703 704 for (siq = softintrq; siq->siq_name != NULL; siq++) { 705 off = nl[siq->siq_index].n_value; 706 if (off == 0) 707 continue; 708 709 kread(off, (char *)ifq, sizeof(*ifq)); 710 printf("%s:\n", siq->siq_name); 711 printf("\tqueue length: %d\n", ifq->ifq_len); 712 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 713 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 714 } 715 } 716 717 /* 718 * Read kernel memory, return 0 on success. 719 */ 720 int 721 kread(addr, buf, size) 722 u_long addr; 723 char *buf; 724 int size; 725 { 726 727 if (kvm_read(kvmd, addr, buf, size) != size) { 728 warnx("%s", kvm_geterr(kvmd)); 729 return (-1); 730 } 731 return (0); 732 } 733 734 char * 735 plural(n) 736 int n; 737 { 738 739 return (n != 1 ? "s" : ""); 740 } 741 742 char * 743 plurales(n) 744 int n; 745 { 746 747 return (n != 1 ? "es" : ""); 748 } 749 750 int 751 get_hardticks(void) 752 { 753 int hardticks; 754 755 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 756 sizeof(hardticks)); 757 return (hardticks); 758 } 759 760 /* 761 * Find the protox for the given "well-known" name. 762 */ 763 static struct protox * 764 knownname(name) 765 char *name; 766 { 767 struct protox **tpp, *tp; 768 769 for (tpp = protoprotox; *tpp; tpp++) 770 for (tp = *tpp; tp->pr_name; tp++) 771 if (strcmp(tp->pr_name, name) == 0) 772 return (tp); 773 return (NULL); 774 } 775 776 /* 777 * Find the protox corresponding to name. 778 */ 779 static struct protox * 780 name2protox(name) 781 char *name; 782 { 783 struct protox *tp; 784 char **alias; /* alias from p->aliases */ 785 struct protoent *p; 786 787 /* 788 * Try to find the name in the list of "well-known" names. If that 789 * fails, check if name is an alias for an Internet protocol. 790 */ 791 if ((tp = knownname(name)) != NULL) 792 return (tp); 793 794 setprotoent(1); /* make protocol lookup cheaper */ 795 while ((p = getprotoent()) != NULL) { 796 /* assert: name not same as p->name */ 797 for (alias = p->p_aliases; *alias; alias++) 798 if (strcmp(name, *alias) == 0) { 799 endprotoent(); 800 return (knownname(p->p_name)); 801 } 802 } 803 endprotoent(); 804 return (NULL); 805 } 806 807 static void 808 usage() 809 { 810 const char *progname = getprogname(); 811 812 (void)fprintf(stderr, 813 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 814 (void)fprintf(stderr, 815 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 816 progname); 817 (void)fprintf(stderr, 818 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 819 (void)fprintf(stderr, 820 " %s [-p protocol] [-M core] [-N system]\n", progname); 821 (void)fprintf(stderr, 822 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 823 (void)fprintf(stderr, 824 " %s [-p protocol] [-i] [-I Interface] \n", progname); 825 (void)fprintf(stderr, 826 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 827 exit(1); 828 } 829