main.c revision 1.58
1 /* $NetBSD: main.c,v 1.58 2006/08/22 20:06:17 christos 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 1.58 2006/08/22 20:06:17 christos 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 #define N_PIMSTAT 68 206 { "_pimstat" }, 207 #define N_CARPSTAT 69 208 { "_carpstats" }, 209 { "" }, 210 }; 211 212 struct protox { 213 u_char pr_index; /* index into nlist of cb head */ 214 u_char pr_sindex; /* index into nlist of stat block */ 215 u_char pr_wanted; /* 1 if wanted, 0 otherwise */ 216 void (*pr_cblocks) /* control blocks printing routine */ 217 __P((u_long, char *)); 218 void (*pr_stats) /* statistics printing routine */ 219 __P((u_long, char *)); 220 void (*pr_istats) 221 __P((char *)); /* per/if statistics printing routine */ 222 void (*pr_dump) /* PCB state dump routine */ 223 __P((u_long)); 224 char *pr_name; /* well-known name */ 225 } protox[] = { 226 { N_TCBTABLE, N_TCPSTAT, 1, protopr, 227 tcp_stats, NULL, tcp_dump, "tcp" }, 228 { N_UDBTABLE, N_UDPSTAT, 1, protopr, 229 udp_stats, NULL, 0, "udp" }, 230 { -1, N_IPSTAT, 1, 0, 231 ip_stats, NULL, 0, "ip" }, 232 { -1, N_ICMPSTAT, 1, 0, 233 icmp_stats, NULL, 0, "icmp" }, 234 { -1, N_IGMPSTAT, 1, 0, 235 igmp_stats, NULL, 0, "igmp" }, 236 { -1, N_CARPSTAT, 1, 0, 237 carp_stats, NULL, 0, "carp" }, 238 #ifdef IPSEC 239 { -1, N_IPSECSTAT, 1, 0, 240 ipsec_switch, NULL, 0, "ipsec" }, 241 #endif 242 { -1, N_PIMSTAT, 1, 0, 243 pim_stats, NULL, 0, "pim" }, 244 { -1, -1, 0, 0, 245 0, NULL, 0, 0 } 246 }; 247 248 #ifdef INET6 249 struct protox ip6protox[] = { 250 { -1, N_IP6STAT, 1, 0, 251 ip6_stats, ip6_ifstats, 0, "ip6" }, 252 { -1, N_ICMP6STAT, 1, 0, 253 icmp6_stats, icmp6_ifstats, 0, "icmp6" }, 254 #ifdef TCP6 255 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 256 tcp6_stats, NULL, tcp6_dump, "tcp6" }, 257 #else 258 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 259 tcp_stats, NULL, tcp_dump, "tcp6" }, 260 #endif 261 { N_UDBTABLE, N_UDP6STAT, 1, ip6protopr, 262 udp6_stats, NULL, 0, "udp6" }, 263 #ifdef IPSEC 264 { -1, N_IPSEC6STAT, 1, 0, 265 ipsec_switch, NULL, 0, "ipsec6" }, 266 #endif 267 { -1, N_PIM6STAT, 1, 0, 268 pim6_stats, NULL, 0, "pim6" }, 269 { -1, N_RIP6STAT, 1, 0, 270 rip6_stats, NULL, 0, "rip6" }, 271 { -1, -1, 0, 0, 272 0, NULL, 0, 0 } 273 }; 274 #endif 275 276 struct protox arpprotox[] = { 277 { -1, N_ARPSTAT, 1, 0, 278 arp_stats, NULL, 0, "arp" }, 279 { -1, -1, 0, 0, 280 0, NULL, 0, 0 } 281 }; 282 283 #ifdef IPSEC 284 struct protox pfkeyprotox[] = { 285 { -1, N_PFKEYSTAT, 1, 0, 286 pfkey_stats, NULL, 0, "pfkey" }, 287 { -1, -1, 0, 0, 288 0, NULL, 0, 0 } 289 }; 290 #endif 291 292 #ifndef SMALL 293 struct protox atalkprotox[] = { 294 { N_DDPCB, N_DDPSTAT, 1, atalkprotopr, 295 ddp_stats, NULL, 0, "ddp" }, 296 { -1, -1, 0, 0, 297 0, NULL, 0 } 298 }; 299 300 struct protox nsprotox[] = { 301 { N_IDP, N_IDPSTAT, 1, nsprotopr, 302 idp_stats, NULL, 0, "idp" }, 303 { N_IDP, N_SPPSTAT, 1, nsprotopr, 304 spp_stats, NULL, 0, "spp" }, 305 { -1, N_NSERR, 1, 0, 306 nserr_stats, NULL, 0, "ns_err" }, 307 { -1, -1, 0, 0, 308 0, NULL, 0 } 309 }; 310 311 struct protox isoprotox[] = { 312 { ISO_TP, N_TPSTAT, 1, iso_protopr, 313 tp_stats, NULL, 0, "tp" }, 314 { N_CLTP, N_CLTPSTAT, 1, iso_protopr, 315 cltp_stats, NULL, 0, "cltp" }, 316 { -1, N_CLNPSTAT, 1, 0, 317 clnp_stats, NULL, 0, "clnp"}, 318 { -1, N_ESISSTAT, 1, 0, 319 esis_stats, NULL, 0, "esis"}, 320 { -1, -1, 0, 0, 321 0, NULL, 0, 0 } 322 }; 323 #endif 324 325 struct protox *protoprotox[] = { protox, 326 #ifdef INET6 327 ip6protox, 328 #endif 329 arpprotox, 330 #ifdef IPSEC 331 pfkeyprotox, 332 #endif 333 #ifndef SMALL 334 atalkprotox, nsprotox, isoprotox, 335 #endif 336 NULL }; 337 338 const struct softintrq { 339 const char *siq_name; 340 int siq_index; 341 } softintrq[] = { 342 { "arpintrq", N_ARPINTRQ }, 343 { "ipintrq", N_IPINTRQ }, 344 { "ip6intrq", N_IP6INTRQ }, 345 { "atintrq1", N_ATINTRQ1 }, 346 { "atintrq2", N_ATINTRQ2 }, 347 { "nsintrq", N_NSINTRQ }, 348 { "clnlintrq", N_CLNLINTRQ }, 349 { "llcintrq", N_LLCINTRQ }, 350 { "hdintrq", N_HDINTRQ }, 351 { "natmintrq", N_NATMINTRQ }, 352 { "ppoediscinq", N_PPPOEDISCINQ }, 353 { "ppoeinq", N_PPPOEINQ }, 354 { "pkintrq", N_PKINTRQ }, 355 { NULL, -1 }, 356 }; 357 358 int main __P((int, char *[])); 359 static void printproto __P((struct protox *, char *)); 360 static void print_softintrq __P((void)); 361 static void usage __P((void)); 362 static struct protox *name2protox __P((char *)); 363 static struct protox *knownname __P((char *)); 364 365 kvm_t *kvmd; 366 367 int 368 main(argc, argv) 369 int argc; 370 char *argv[]; 371 { 372 struct protoent *p; 373 struct protox *tp; /* for printing cblocks & stats */ 374 int ch; 375 char *nlistf = NULL, *memf = NULL; 376 char buf[_POSIX2_LINE_MAX], *cp; 377 u_long pcbaddr; 378 gid_t egid = getegid(); 379 380 (void)setegid(getgid()); 381 tp = NULL; 382 af = AF_UNSPEC; 383 pcbaddr = 0; 384 385 while ((ch = getopt(argc, argv, 386 "AabBdf:ghI:LliM:mN:nP:p:qrsStuvw:")) != -1) 387 switch (ch) { 388 case 'A': 389 Aflag = 1; 390 break; 391 case 'a': 392 aflag = 1; 393 break; 394 case 'b': 395 bflag = 1; 396 break; 397 case 'B': 398 Bflag = 1; 399 break; 400 case 'd': 401 dflag = 1; 402 break; 403 case 'f': 404 if (strcmp(optarg, "ns") == 0) 405 af = AF_NS; 406 else if (strcmp(optarg, "inet") == 0) 407 af = AF_INET; 408 else if (strcmp(optarg, "inet6") == 0) 409 af = AF_INET6; 410 else if (strcmp(optarg, "arp") == 0) 411 af = AF_ARP; 412 else if (strcmp(optarg, "pfkey") == 0) 413 af = PF_KEY; 414 else if (strcmp(optarg, "unix") == 0 415 || strcmp(optarg, "local") == 0) 416 af = AF_LOCAL; 417 else if (strcmp(optarg, "iso") == 0) 418 af = AF_ISO; 419 else if (strcmp(optarg, "atalk") == 0) 420 af = AF_APPLETALK; 421 else 422 errx(1, "%s: unknown address family", 423 optarg); 424 break; 425 #ifndef SMALL 426 case 'g': 427 gflag = 1; 428 break; 429 #endif 430 case 'I': 431 iflag = 1; 432 interface = optarg; 433 break; 434 case 'i': 435 iflag = 1; 436 break; 437 case 'L': 438 Lflag = 1; 439 break; 440 case 'l': 441 lflag = 1; 442 break; 443 case 'M': 444 memf = optarg; 445 break; 446 case 'm': 447 mflag = 1; 448 break; 449 case 'N': 450 nlistf = optarg; 451 break; 452 case 'n': 453 numeric_addr = numeric_port = nflag = 1; 454 break; 455 case 'P': 456 errno = 0; 457 pcbaddr = strtoul(optarg, &cp, 16); 458 if (*cp != '\0' || errno == ERANGE) 459 errx(1, "invalid PCB address %s", 460 optarg); 461 Pflag = 1; 462 break; 463 case 'p': 464 if ((tp = name2protox(optarg)) == NULL) 465 errx(1, "%s: unknown or uninstrumented protocol", 466 optarg); 467 pflag = 1; 468 break; 469 case 'q': 470 qflag = 1; 471 break; 472 case 'r': 473 rflag = 1; 474 break; 475 case 's': 476 ++sflag; 477 break; 478 case 'S': 479 numeric_addr = 1; 480 break; 481 case 't': 482 tflag = 1; 483 break; 484 case 'u': 485 af = AF_LOCAL; 486 break; 487 case 'v': 488 vflag++; 489 break; 490 case 'w': 491 interval = atoi(optarg); 492 iflag = 1; 493 break; 494 case '?': 495 default: 496 usage(); 497 } 498 argv += optind; 499 argc -= optind; 500 501 #define BACKWARD_COMPATIBILITY 502 #ifdef BACKWARD_COMPATIBILITY 503 if (*argv) { 504 if (isdigit((unsigned char)**argv)) { 505 interval = atoi(*argv); 506 if (interval <= 0) 507 usage(); 508 ++argv; 509 iflag = 1; 510 } 511 if (*argv) { 512 nlistf = *argv; 513 if (*++argv) 514 memf = *argv; 515 } 516 } 517 #endif 518 519 /* 520 * Discard setgid privileges. If not the running kernel, we toss 521 * them away totally so that bad guys can't print interesting stuff 522 * from kernel memory, otherwise switch back to kmem for the 523 * duration of the kvm_openfiles() call. 524 */ 525 use_sysctl = (nlistf == NULL && memf == NULL); 526 if (!use_sysctl || Pflag) 527 (void)setgid(getgid()); 528 else 529 (void)setegid(egid); 530 531 532 if ((kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, 533 buf)) == NULL && !use_sysctl) 534 errx(1, "%s", buf); 535 536 /* do this now anyway */ 537 if (use_sysctl) 538 (void)setgid(getgid()); 539 540 #ifndef SMALL 541 if (Bflag) { 542 if (sflag) 543 bpf_stats(); 544 else 545 bpf_dump(interface); 546 exit(0); 547 } 548 #endif 549 550 if ((kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) && !use_sysctl) { 551 if (nlistf) 552 errx(1, "%s: no namelist", nlistf); 553 else 554 errx(1, "no namelist"); 555 } 556 if (mflag) { 557 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 558 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 559 nl[N_MCLPOOL].n_value); 560 exit(0); 561 } 562 if (Pflag) { 563 if (tp == NULL) { 564 /* Default to TCP. */ 565 tp = name2protox("tcp"); 566 } 567 if (tp->pr_dump) 568 (*tp->pr_dump)(pcbaddr); 569 else 570 printf("%s: no PCB dump routine\n", tp->pr_name); 571 exit(0); 572 } 573 if (pflag) { 574 if (iflag && tp->pr_istats) 575 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 576 else if (tp->pr_stats) 577 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 578 tp->pr_name); 579 else 580 printf("%s: no stats routine\n", tp->pr_name); 581 exit(0); 582 } 583 if (qflag) { 584 print_softintrq(); 585 exit(0); 586 } 587 /* 588 * Keep file descriptors open to avoid overhead 589 * of open/close on each call to get* routines. 590 */ 591 sethostent(1); 592 setnetent(1); 593 if (iflag) { 594 if (af != AF_UNSPEC) 595 goto protostat; 596 597 intpr(interval, nl[N_IFNET].n_value, NULL); 598 exit(0); 599 } 600 if (rflag) { 601 if (sflag) 602 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 603 else { 604 if (use_sysctl) 605 p_rttables(af); 606 else 607 routepr(nl[N_RTREE].n_value); 608 } 609 exit(0); 610 } 611 #ifndef SMALL 612 if (gflag) { 613 if (sflag) { 614 if (af == AF_INET || af == AF_UNSPEC) 615 mrt_stats(nl[N_MRTPROTO].n_value, 616 nl[N_MRTSTAT].n_value); 617 #ifdef INET6 618 if (af == AF_INET6 || af == AF_UNSPEC) 619 mrt6_stats(nl[N_MRT6PROTO].n_value, 620 nl[N_MRT6STAT].n_value); 621 #endif 622 } 623 else { 624 if (af == AF_INET || af == AF_UNSPEC) 625 mroutepr(nl[N_MRTPROTO].n_value, 626 nl[N_MFCHASHTBL].n_value, 627 nl[N_MFCHASH].n_value, 628 nl[N_VIFTABLE].n_value); 629 #ifdef INET6 630 if (af == AF_INET6 || af == AF_UNSPEC) 631 mroute6pr(nl[N_MRT6PROTO].n_value, 632 nl[N_MF6CTABLE].n_value, 633 nl[N_MIF6TABLE].n_value); 634 #endif 635 } 636 exit(0); 637 } 638 #endif 639 protostat: 640 if (af == AF_INET || af == AF_UNSPEC) { 641 setprotoent(1); 642 setservent(1); 643 /* ugh, this is O(MN) ... why do we do this? */ 644 while ((p = getprotoent()) != NULL) { 645 for (tp = protox; tp->pr_name; tp++) 646 if (strcmp(tp->pr_name, p->p_name) == 0) 647 break; 648 if (tp->pr_name == 0 || tp->pr_wanted == 0) 649 continue; 650 printproto(tp, p->p_name); 651 tp->pr_wanted = 0; 652 } 653 endprotoent(); 654 for (tp = protox; tp->pr_name; tp++) 655 if (tp->pr_wanted) 656 printproto(tp, tp->pr_name); 657 } 658 #ifdef INET6 659 if (af == AF_INET6 || af == AF_UNSPEC) 660 for (tp = ip6protox; tp->pr_name; tp++) 661 printproto(tp, tp->pr_name); 662 #endif 663 if (af == AF_ARP || af == AF_UNSPEC) 664 for (tp = arpprotox; tp->pr_name; tp++) 665 printproto(tp, tp->pr_name); 666 #ifdef IPSEC 667 if (af == PF_KEY || af == AF_UNSPEC) 668 for (tp = pfkeyprotox; tp->pr_name; tp++) 669 printproto(tp, tp->pr_name); 670 #endif 671 #ifndef SMALL 672 if (af == AF_APPLETALK || af == AF_UNSPEC) 673 for (tp = atalkprotox; tp->pr_name; tp++) 674 printproto(tp, tp->pr_name); 675 if (af == AF_NS || af == AF_UNSPEC) 676 for (tp = nsprotox; tp->pr_name; tp++) 677 printproto(tp, tp->pr_name); 678 if (af == AF_ISO || af == AF_UNSPEC) 679 for (tp = isoprotox; tp->pr_name; tp++) 680 printproto(tp, tp->pr_name); 681 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 682 unixpr(nl[N_UNIXSW].n_value); 683 #endif 684 exit(0); 685 } 686 687 /* 688 * Print out protocol statistics or control blocks (per sflag). 689 * If the interface was not specifically requested, and the symbol 690 * is not in the namelist, ignore this one. 691 */ 692 static void 693 printproto(tp, name) 694 struct protox *tp; 695 char *name; 696 { 697 void (*pr) __P((u_long, char *)); 698 u_long off; 699 700 if (sflag) { 701 if (iflag) { 702 if (tp->pr_istats) 703 intpr(interval, nl[N_IFNET].n_value, 704 tp->pr_istats); 705 return; 706 } 707 else { 708 pr = tp->pr_stats; 709 off = nl[tp->pr_sindex].n_value; 710 } 711 } else { 712 pr = tp->pr_cblocks; 713 off = nl[tp->pr_index].n_value; 714 } 715 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 716 (*pr)(off, name); 717 } 718 } 719 720 /* 721 * Print softintrq status. 722 */ 723 void 724 print_softintrq() 725 { 726 struct ifqueue intrq, *ifq = &intrq; 727 const struct softintrq *siq; 728 u_long off; 729 730 for (siq = softintrq; siq->siq_name != NULL; siq++) { 731 off = nl[siq->siq_index].n_value; 732 if (off == 0) 733 continue; 734 735 kread(off, (char *)ifq, sizeof(*ifq)); 736 printf("%s:\n", siq->siq_name); 737 printf("\tqueue length: %d\n", ifq->ifq_len); 738 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 739 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 740 } 741 } 742 743 /* 744 * Read kernel memory, return 0 on success. 745 */ 746 int 747 kread(addr, buf, size) 748 u_long addr; 749 char *buf; 750 int size; 751 { 752 753 if (kvm_read(kvmd, addr, buf, size) != size) { 754 warnx("%s", kvm_geterr(kvmd)); 755 return (-1); 756 } 757 return (0); 758 } 759 760 char * 761 plural(n) 762 int n; 763 { 764 765 return (n != 1 ? "s" : ""); 766 } 767 768 char * 769 plurales(n) 770 int n; 771 { 772 773 return (n != 1 ? "es" : ""); 774 } 775 776 int 777 get_hardticks(void) 778 { 779 int hardticks; 780 781 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 782 sizeof(hardticks)); 783 return (hardticks); 784 } 785 786 /* 787 * Find the protox for the given "well-known" name. 788 */ 789 static struct protox * 790 knownname(name) 791 char *name; 792 { 793 struct protox **tpp, *tp; 794 795 for (tpp = protoprotox; *tpp; tpp++) 796 for (tp = *tpp; tp->pr_name; tp++) 797 if (strcmp(tp->pr_name, name) == 0) 798 return (tp); 799 return (NULL); 800 } 801 802 /* 803 * Find the protox corresponding to name. 804 */ 805 static struct protox * 806 name2protox(name) 807 char *name; 808 { 809 struct protox *tp; 810 char **alias; /* alias from p->aliases */ 811 struct protoent *p; 812 813 /* 814 * Try to find the name in the list of "well-known" names. If that 815 * fails, check if name is an alias for an Internet protocol. 816 */ 817 if ((tp = knownname(name)) != NULL) 818 return (tp); 819 820 setprotoent(1); /* make protocol lookup cheaper */ 821 while ((p = getprotoent()) != NULL) { 822 /* assert: name not same as p->name */ 823 for (alias = p->p_aliases; *alias; alias++) 824 if (strcmp(name, *alias) == 0) { 825 endprotoent(); 826 return (knownname(p->p_name)); 827 } 828 } 829 endprotoent(); 830 return (NULL); 831 } 832 833 static void 834 usage() 835 { 836 const char *progname = getprogname(); 837 838 (void)fprintf(stderr, 839 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 840 (void)fprintf(stderr, 841 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 842 progname); 843 (void)fprintf(stderr, 844 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 845 (void)fprintf(stderr, 846 " %s [-p protocol] [-M core] [-N system]\n", progname); 847 (void)fprintf(stderr, 848 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 849 (void)fprintf(stderr, 850 " %s [-p protocol] [-i] [-I Interface] \n", progname); 851 (void)fprintf(stderr, 852 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 853 (void)fprintf(stderr, 854 " %s [-s] [-B] [-I interface]\n", progname); 855 exit(1); 856 } 857
Indexes created Fri Sep 26 20:09:58 GMT 2025