main.c revision 1.59
1 /* $NetBSD: main.c,v 1.59 2006/08/26 15:33:20 matt 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 1.59 2006/08/26 15:33:20 matt 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 #ifdef NS 301 struct protox nsprotox[] = { 302 { N_IDP, N_IDPSTAT, 1, nsprotopr, 303 idp_stats, NULL, 0, "idp" }, 304 { N_IDP, N_SPPSTAT, 1, nsprotopr, 305 spp_stats, NULL, 0, "spp" }, 306 { -1, N_NSERR, 1, 0, 307 nserr_stats, NULL, 0, "ns_err" }, 308 { -1, -1, 0, 0, 309 0, NULL, 0 } 310 }; 311 #endif 312 313 struct protox isoprotox[] = { 314 { ISO_TP, N_TPSTAT, 1, iso_protopr, 315 tp_stats, NULL, 0, "tp" }, 316 { N_CLTP, N_CLTPSTAT, 1, iso_protopr, 317 cltp_stats, NULL, 0, "cltp" }, 318 { -1, N_CLNPSTAT, 1, 0, 319 clnp_stats, NULL, 0, "clnp"}, 320 { -1, N_ESISSTAT, 1, 0, 321 esis_stats, NULL, 0, "esis"}, 322 { -1, -1, 0, 0, 323 0, NULL, 0, 0 } 324 }; 325 #endif 326 327 struct protox *protoprotox[] = { protox, 328 #ifdef INET6 329 ip6protox, 330 #endif 331 arpprotox, 332 #ifdef IPSEC 333 pfkeyprotox, 334 #endif 335 #ifndef SMALL 336 atalkprotox, 337 #ifdef NS 338 nsprotox, 339 #endif 340 isoprotox, 341 #endif 342 NULL }; 343 344 const struct softintrq { 345 const char *siq_name; 346 int siq_index; 347 } softintrq[] = { 348 { "arpintrq", N_ARPINTRQ }, 349 { "ipintrq", N_IPINTRQ }, 350 { "ip6intrq", N_IP6INTRQ }, 351 { "atintrq1", N_ATINTRQ1 }, 352 { "atintrq2", N_ATINTRQ2 }, 353 #ifdef NS 354 { "nsintrq", N_NSINTRQ }, 355 #endif 356 { "clnlintrq", N_CLNLINTRQ }, 357 { "llcintrq", N_LLCINTRQ }, 358 { "hdintrq", N_HDINTRQ }, 359 { "natmintrq", N_NATMINTRQ }, 360 { "ppoediscinq", N_PPPOEDISCINQ }, 361 { "ppoeinq", N_PPPOEINQ }, 362 { "pkintrq", N_PKINTRQ }, 363 { NULL, -1 }, 364 }; 365 366 int main __P((int, char *[])); 367 static void printproto __P((struct protox *, char *)); 368 static void print_softintrq __P((void)); 369 static void usage __P((void)); 370 static struct protox *name2protox __P((char *)); 371 static struct protox *knownname __P((char *)); 372 373 kvm_t *kvmd; 374 375 int 376 main(argc, argv) 377 int argc; 378 char *argv[]; 379 { 380 struct protoent *p; 381 struct protox *tp; /* for printing cblocks & stats */ 382 int ch; 383 char *nlistf = NULL, *memf = NULL; 384 char buf[_POSIX2_LINE_MAX], *cp; 385 u_long pcbaddr; 386 gid_t egid = getegid(); 387 388 (void)setegid(getgid()); 389 tp = NULL; 390 af = AF_UNSPEC; 391 pcbaddr = 0; 392 393 while ((ch = getopt(argc, argv, 394 "AabBdf:ghI:LliM:mN:nP:p:qrsStuvw:")) != -1) 395 switch (ch) { 396 case 'A': 397 Aflag = 1; 398 break; 399 case 'a': 400 aflag = 1; 401 break; 402 case 'b': 403 bflag = 1; 404 break; 405 case 'B': 406 Bflag = 1; 407 break; 408 case 'd': 409 dflag = 1; 410 break; 411 case 'f': 412 #ifdef NS 413 if (strcmp(optarg, "ns") == 0) { 414 af = AF_NS; 415 break; 416 } 417 #endif 418 if (strcmp(optarg, "inet") == 0) 419 af = AF_INET; 420 else if (strcmp(optarg, "inet6") == 0) 421 af = AF_INET6; 422 else if (strcmp(optarg, "arp") == 0) 423 af = AF_ARP; 424 else if (strcmp(optarg, "pfkey") == 0) 425 af = PF_KEY; 426 else if (strcmp(optarg, "unix") == 0 427 || strcmp(optarg, "local") == 0) 428 af = AF_LOCAL; 429 else if (strcmp(optarg, "iso") == 0) 430 af = AF_ISO; 431 else if (strcmp(optarg, "atalk") == 0) 432 af = AF_APPLETALK; 433 else 434 errx(1, "%s: unknown address family", 435 optarg); 436 break; 437 #ifndef SMALL 438 case 'g': 439 gflag = 1; 440 break; 441 #endif 442 case 'I': 443 iflag = 1; 444 interface = optarg; 445 break; 446 case 'i': 447 iflag = 1; 448 break; 449 case 'L': 450 Lflag = 1; 451 break; 452 case 'l': 453 lflag = 1; 454 break; 455 case 'M': 456 memf = optarg; 457 break; 458 case 'm': 459 mflag = 1; 460 break; 461 case 'N': 462 nlistf = optarg; 463 break; 464 case 'n': 465 numeric_addr = numeric_port = nflag = 1; 466 break; 467 case 'P': 468 errno = 0; 469 pcbaddr = strtoul(optarg, &cp, 16); 470 if (*cp != '\0' || errno == ERANGE) 471 errx(1, "invalid PCB address %s", 472 optarg); 473 Pflag = 1; 474 break; 475 case 'p': 476 if ((tp = name2protox(optarg)) == NULL) 477 errx(1, "%s: unknown or uninstrumented protocol", 478 optarg); 479 pflag = 1; 480 break; 481 case 'q': 482 qflag = 1; 483 break; 484 case 'r': 485 rflag = 1; 486 break; 487 case 's': 488 ++sflag; 489 break; 490 case 'S': 491 numeric_addr = 1; 492 break; 493 case 't': 494 tflag = 1; 495 break; 496 case 'u': 497 af = AF_LOCAL; 498 break; 499 case 'v': 500 vflag++; 501 break; 502 case 'w': 503 interval = atoi(optarg); 504 iflag = 1; 505 break; 506 case '?': 507 default: 508 usage(); 509 } 510 argv += optind; 511 argc -= optind; 512 513 #define BACKWARD_COMPATIBILITY 514 #ifdef BACKWARD_COMPATIBILITY 515 if (*argv) { 516 if (isdigit((unsigned char)**argv)) { 517 interval = atoi(*argv); 518 if (interval <= 0) 519 usage(); 520 ++argv; 521 iflag = 1; 522 } 523 if (*argv) { 524 nlistf = *argv; 525 if (*++argv) 526 memf = *argv; 527 } 528 } 529 #endif 530 531 /* 532 * Discard setgid privileges. If not the running kernel, we toss 533 * them away totally so that bad guys can't print interesting stuff 534 * from kernel memory, otherwise switch back to kmem for the 535 * duration of the kvm_openfiles() call. 536 */ 537 use_sysctl = (nlistf == NULL && memf == NULL); 538 if (!use_sysctl || Pflag) 539 (void)setgid(getgid()); 540 else 541 (void)setegid(egid); 542 543 544 if ((kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, 545 buf)) == NULL && !use_sysctl) 546 errx(1, "%s", buf); 547 548 /* do this now anyway */ 549 if (use_sysctl) 550 (void)setgid(getgid()); 551 552 #ifndef SMALL 553 if (Bflag) { 554 if (sflag) 555 bpf_stats(); 556 else 557 bpf_dump(interface); 558 exit(0); 559 } 560 #endif 561 562 if ((kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) && !use_sysctl) { 563 if (nlistf) 564 errx(1, "%s: no namelist", nlistf); 565 else 566 errx(1, "no namelist"); 567 } 568 if (mflag) { 569 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 570 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 571 nl[N_MCLPOOL].n_value); 572 exit(0); 573 } 574 if (Pflag) { 575 if (tp == NULL) { 576 /* Default to TCP. */ 577 tp = name2protox("tcp"); 578 } 579 if (tp->pr_dump) 580 (*tp->pr_dump)(pcbaddr); 581 else 582 printf("%s: no PCB dump routine\n", tp->pr_name); 583 exit(0); 584 } 585 if (pflag) { 586 if (iflag && tp->pr_istats) 587 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 588 else if (tp->pr_stats) 589 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 590 tp->pr_name); 591 else 592 printf("%s: no stats routine\n", tp->pr_name); 593 exit(0); 594 } 595 if (qflag) { 596 print_softintrq(); 597 exit(0); 598 } 599 /* 600 * Keep file descriptors open to avoid overhead 601 * of open/close on each call to get* routines. 602 */ 603 sethostent(1); 604 setnetent(1); 605 if (iflag) { 606 if (af != AF_UNSPEC) 607 goto protostat; 608 609 intpr(interval, nl[N_IFNET].n_value, NULL); 610 exit(0); 611 } 612 if (rflag) { 613 if (sflag) 614 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 615 else { 616 if (use_sysctl) 617 p_rttables(af); 618 else 619 routepr(nl[N_RTREE].n_value); 620 } 621 exit(0); 622 } 623 #ifndef SMALL 624 if (gflag) { 625 if (sflag) { 626 if (af == AF_INET || af == AF_UNSPEC) 627 mrt_stats(nl[N_MRTPROTO].n_value, 628 nl[N_MRTSTAT].n_value); 629 #ifdef INET6 630 if (af == AF_INET6 || af == AF_UNSPEC) 631 mrt6_stats(nl[N_MRT6PROTO].n_value, 632 nl[N_MRT6STAT].n_value); 633 #endif 634 } 635 else { 636 if (af == AF_INET || af == AF_UNSPEC) 637 mroutepr(nl[N_MRTPROTO].n_value, 638 nl[N_MFCHASHTBL].n_value, 639 nl[N_MFCHASH].n_value, 640 nl[N_VIFTABLE].n_value); 641 #ifdef INET6 642 if (af == AF_INET6 || af == AF_UNSPEC) 643 mroute6pr(nl[N_MRT6PROTO].n_value, 644 nl[N_MF6CTABLE].n_value, 645 nl[N_MIF6TABLE].n_value); 646 #endif 647 } 648 exit(0); 649 } 650 #endif 651 protostat: 652 if (af == AF_INET || af == AF_UNSPEC) { 653 setprotoent(1); 654 setservent(1); 655 /* ugh, this is O(MN) ... why do we do this? */ 656 while ((p = getprotoent()) != NULL) { 657 for (tp = protox; tp->pr_name; tp++) 658 if (strcmp(tp->pr_name, p->p_name) == 0) 659 break; 660 if (tp->pr_name == 0 || tp->pr_wanted == 0) 661 continue; 662 printproto(tp, p->p_name); 663 tp->pr_wanted = 0; 664 } 665 endprotoent(); 666 for (tp = protox; tp->pr_name; tp++) 667 if (tp->pr_wanted) 668 printproto(tp, tp->pr_name); 669 } 670 #ifdef INET6 671 if (af == AF_INET6 || af == AF_UNSPEC) 672 for (tp = ip6protox; tp->pr_name; tp++) 673 printproto(tp, tp->pr_name); 674 #endif 675 if (af == AF_ARP || af == AF_UNSPEC) 676 for (tp = arpprotox; tp->pr_name; tp++) 677 printproto(tp, tp->pr_name); 678 #ifdef IPSEC 679 if (af == PF_KEY || af == AF_UNSPEC) 680 for (tp = pfkeyprotox; tp->pr_name; tp++) 681 printproto(tp, tp->pr_name); 682 #endif 683 #ifndef SMALL 684 if (af == AF_APPLETALK || af == AF_UNSPEC) 685 for (tp = atalkprotox; tp->pr_name; tp++) 686 printproto(tp, tp->pr_name); 687 #ifdef NS 688 if (af == AF_NS || af == AF_UNSPEC) 689 for (tp = nsprotox; tp->pr_name; tp++) 690 printproto(tp, tp->pr_name); 691 #endif 692 if (af == AF_ISO || af == AF_UNSPEC) 693 for (tp = isoprotox; tp->pr_name; tp++) 694 printproto(tp, tp->pr_name); 695 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 696 unixpr(nl[N_UNIXSW].n_value); 697 #endif 698 exit(0); 699 } 700 701 /* 702 * Print out protocol statistics or control blocks (per sflag). 703 * If the interface was not specifically requested, and the symbol 704 * is not in the namelist, ignore this one. 705 */ 706 static void 707 printproto(tp, name) 708 struct protox *tp; 709 char *name; 710 { 711 void (*pr) __P((u_long, char *)); 712 u_long off; 713 714 if (sflag) { 715 if (iflag) { 716 if (tp->pr_istats) 717 intpr(interval, nl[N_IFNET].n_value, 718 tp->pr_istats); 719 return; 720 } 721 else { 722 pr = tp->pr_stats; 723 off = nl[tp->pr_sindex].n_value; 724 } 725 } else { 726 pr = tp->pr_cblocks; 727 off = nl[tp->pr_index].n_value; 728 } 729 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 730 (*pr)(off, name); 731 } 732 } 733 734 /* 735 * Print softintrq status. 736 */ 737 void 738 print_softintrq() 739 { 740 struct ifqueue intrq, *ifq = &intrq; 741 const struct softintrq *siq; 742 u_long off; 743 744 for (siq = softintrq; siq->siq_name != NULL; siq++) { 745 off = nl[siq->siq_index].n_value; 746 if (off == 0) 747 continue; 748 749 kread(off, (char *)ifq, sizeof(*ifq)); 750 printf("%s:\n", siq->siq_name); 751 printf("\tqueue length: %d\n", ifq->ifq_len); 752 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 753 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 754 } 755 } 756 757 /* 758 * Read kernel memory, return 0 on success. 759 */ 760 int 761 kread(addr, buf, size) 762 u_long addr; 763 char *buf; 764 int size; 765 { 766 767 if (kvm_read(kvmd, addr, buf, size) != size) { 768 warnx("%s", kvm_geterr(kvmd)); 769 return (-1); 770 } 771 return (0); 772 } 773 774 char * 775 plural(n) 776 int n; 777 { 778 779 return (n != 1 ? "s" : ""); 780 } 781 782 char * 783 plurales(n) 784 int n; 785 { 786 787 return (n != 1 ? "es" : ""); 788 } 789 790 int 791 get_hardticks(void) 792 { 793 int hardticks; 794 795 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 796 sizeof(hardticks)); 797 return (hardticks); 798 } 799 800 /* 801 * Find the protox for the given "well-known" name. 802 */ 803 static struct protox * 804 knownname(name) 805 char *name; 806 { 807 struct protox **tpp, *tp; 808 809 for (tpp = protoprotox; *tpp; tpp++) 810 for (tp = *tpp; tp->pr_name; tp++) 811 if (strcmp(tp->pr_name, name) == 0) 812 return (tp); 813 return (NULL); 814 } 815 816 /* 817 * Find the protox corresponding to name. 818 */ 819 static struct protox * 820 name2protox(name) 821 char *name; 822 { 823 struct protox *tp; 824 char **alias; /* alias from p->aliases */ 825 struct protoent *p; 826 827 /* 828 * Try to find the name in the list of "well-known" names. If that 829 * fails, check if name is an alias for an Internet protocol. 830 */ 831 if ((tp = knownname(name)) != NULL) 832 return (tp); 833 834 setprotoent(1); /* make protocol lookup cheaper */ 835 while ((p = getprotoent()) != NULL) { 836 /* assert: name not same as p->name */ 837 for (alias = p->p_aliases; *alias; alias++) 838 if (strcmp(name, *alias) == 0) { 839 endprotoent(); 840 return (knownname(p->p_name)); 841 } 842 } 843 endprotoent(); 844 return (NULL); 845 } 846 847 static void 848 usage() 849 { 850 const char *progname = getprogname(); 851 852 (void)fprintf(stderr, 853 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 854 (void)fprintf(stderr, 855 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 856 progname); 857 (void)fprintf(stderr, 858 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 859 (void)fprintf(stderr, 860 " %s [-p protocol] [-M core] [-N system]\n", progname); 861 (void)fprintf(stderr, 862 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 863 (void)fprintf(stderr, 864 " %s [-p protocol] [-i] [-I Interface] \n", progname); 865 (void)fprintf(stderr, 866 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 867 (void)fprintf(stderr, 868 " %s [-s] [-B] [-I interface]\n", progname); 869 exit(1); 870 } 871
Indexes created Thu Sep 25 08:09:54 GMT 2025