main.c revision 1.67
1 /* $NetBSD: main.c,v 1.67 2008/04/23 15:17:42 thorpej 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 1.67 2008/04/23 15:17:42 thorpej 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 static void prepare(char *, char *, struct protox *tp); 373 374 kvm_t *kvmd; 375 gid_t egid; 376 377 void 378 prepare(char *nlistf, char *memf, struct protox *tp) 379 { 380 char buf[_POSIX2_LINE_MAX]; 381 382 /* 383 * Try to figure out if we can use sysctl or not. 384 */ 385 if (nlistf != NULL && memf != NULL) { 386 /* If we have -M and -N, we're not dealing with live memory. */ 387 use_sysctl = 0; 388 } else if (qflag || 389 rflag || 390 iflag || 391 #ifndef SMALL 392 gflag || 393 #ifdef NS 394 (pflag && tp->pr_sindex == N_IDPSTAT) || 395 (pflag && tp->pr_sindex == N_SPPSTAT) || 396 (pflag && tp->pr_sindex == N_NSERR) || 397 #endif 398 (pflag && tp->pr_sindex == N_TPSTAT) || 399 (pflag && tp->pr_sindex == N_CLTPSTAT) || 400 (pflag && tp->pr_sindex == N_CLNPSTAT) || 401 (pflag && tp->pr_sindex == N_ESISSTAT) || 402 #endif 403 (pflag && tp->pr_sindex == N_PIMSTAT) || 404 Pflag) { 405 /* These flags are not yet supported via sysctl(3). */ 406 use_sysctl = 0; 407 } else { 408 /* We can use sysctl(3). */ 409 use_sysctl = 1; 410 } 411 412 if (!use_sysctl) { 413 (void)setegid(egid); 414 kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf); 415 (void)setgid(getgid()); 416 if (kvmd == NULL) 417 err(1, "kvm error: %s", buf); 418 419 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 420 if (nlistf) 421 errx(1, "%s: no namelist", nlistf); 422 else 423 errx(1, "no namelist"); 424 } 425 } else 426 (void)setgid(getgid()); 427 } 428 429 int 430 main(argc, argv) 431 int argc; 432 char *argv[]; 433 { 434 struct protoent *p; 435 struct protox *tp; /* for printing cblocks & stats */ 436 int ch; 437 char *nlistf = NULL, *memf = NULL; 438 char *cp; 439 u_long pcbaddr; 440 441 egid = getegid(); 442 (void)setegid(getgid()); 443 tp = NULL; 444 af = AF_UNSPEC; 445 pcbaddr = 0; 446 447 while ((ch = getopt(argc, argv, 448 "AabBdf:ghI:LliM:mN:nP:p:qrsStuvw:")) != -1) 449 switch (ch) { 450 case 'A': 451 Aflag = 1; 452 break; 453 case 'a': 454 aflag = 1; 455 break; 456 case 'b': 457 bflag = 1; 458 break; 459 case 'B': 460 Bflag = 1; 461 break; 462 case 'd': 463 dflag = 1; 464 break; 465 case 'f': 466 #ifdef NS 467 if (strcmp(optarg, "ns") == 0) { 468 af = AF_NS; 469 break; 470 } 471 #endif 472 if (strcmp(optarg, "inet") == 0) 473 af = AF_INET; 474 else if (strcmp(optarg, "inet6") == 0) 475 af = AF_INET6; 476 else if (strcmp(optarg, "arp") == 0) 477 af = AF_ARP; 478 else if (strcmp(optarg, "pfkey") == 0) 479 af = PF_KEY; 480 else if (strcmp(optarg, "unix") == 0 481 || strcmp(optarg, "local") == 0) 482 af = AF_LOCAL; 483 else if (strcmp(optarg, "iso") == 0) 484 af = AF_ISO; 485 else if (strcmp(optarg, "atalk") == 0) 486 af = AF_APPLETALK; 487 else 488 errx(1, "%s: unknown address family", 489 optarg); 490 break; 491 #ifndef SMALL 492 case 'g': 493 gflag = 1; 494 break; 495 #endif 496 case 'I': 497 iflag = 1; 498 interface = optarg; 499 break; 500 case 'i': 501 iflag = 1; 502 break; 503 case 'L': 504 Lflag = 1; 505 break; 506 case 'l': 507 lflag = 1; 508 break; 509 case 'M': 510 memf = optarg; 511 break; 512 case 'm': 513 mflag = 1; 514 break; 515 case 'N': 516 nlistf = optarg; 517 break; 518 case 'n': 519 numeric_addr = numeric_port = nflag = 1; 520 break; 521 case 'P': 522 errno = 0; 523 pcbaddr = strtoul(optarg, &cp, 16); 524 if (*cp != '\0' || errno == ERANGE) 525 errx(1, "invalid PCB address %s", 526 optarg); 527 Pflag = 1; 528 break; 529 case 'p': 530 if ((tp = name2protox(optarg)) == NULL) 531 errx(1, "%s: unknown or uninstrumented protocol", 532 optarg); 533 pflag = 1; 534 break; 535 case 'q': 536 qflag = 1; 537 break; 538 case 'r': 539 rflag = 1; 540 break; 541 case 's': 542 ++sflag; 543 break; 544 case 'S': 545 numeric_addr = 1; 546 break; 547 case 't': 548 tflag = 1; 549 break; 550 case 'u': 551 af = AF_LOCAL; 552 break; 553 case 'v': 554 vflag++; 555 break; 556 case 'w': 557 interval = atoi(optarg); 558 iflag = 1; 559 break; 560 case '?': 561 default: 562 usage(); 563 } 564 argv += optind; 565 argc -= optind; 566 567 #define BACKWARD_COMPATIBILITY 568 #ifdef BACKWARD_COMPATIBILITY 569 if (*argv) { 570 if (isdigit((unsigned char)**argv)) { 571 interval = atoi(*argv); 572 if (interval <= 0) 573 usage(); 574 ++argv; 575 iflag = 1; 576 } 577 if (*argv) { 578 nlistf = *argv; 579 if (*++argv) 580 memf = *argv; 581 } 582 } 583 #endif 584 585 prepare(nlistf, memf, tp); 586 587 #ifndef SMALL 588 if (Bflag) { 589 if (sflag) 590 bpf_stats(); 591 else 592 bpf_dump(interface); 593 exit(0); 594 } 595 #endif 596 597 if (mflag) { 598 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 599 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 600 nl[N_MCLPOOL].n_value); 601 exit(0); 602 } 603 if (Pflag) { 604 if (tp == NULL) { 605 /* Default to TCP. */ 606 tp = name2protox("tcp"); 607 } 608 if (tp->pr_dump) 609 (*tp->pr_dump)(pcbaddr); 610 else 611 printf("%s: no PCB dump routine\n", tp->pr_name); 612 exit(0); 613 } 614 if (pflag) { 615 if (iflag && tp->pr_istats) 616 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 617 else if (tp->pr_stats) 618 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 619 tp->pr_name); 620 else 621 printf("%s: no stats routine\n", tp->pr_name); 622 exit(0); 623 } 624 if (qflag) { 625 print_softintrq(); 626 exit(0); 627 } 628 /* 629 * Keep file descriptors open to avoid overhead 630 * of open/close on each call to get* routines. 631 */ 632 sethostent(1); 633 setnetent(1); 634 if (iflag) { 635 if (af != AF_UNSPEC) 636 goto protostat; 637 638 intpr(interval, nl[N_IFNET].n_value, NULL); 639 exit(0); 640 } 641 if (rflag) { 642 if (sflag) 643 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 644 else { 645 if (use_sysctl) 646 p_rttables(af); 647 else 648 routepr(nl[N_RTREE].n_value); 649 } 650 exit(0); 651 } 652 #ifndef SMALL 653 if (gflag) { 654 if (sflag) { 655 if (af == AF_INET || af == AF_UNSPEC) 656 mrt_stats(nl[N_MRTPROTO].n_value, 657 nl[N_MRTSTAT].n_value); 658 #ifdef INET6 659 if (af == AF_INET6 || af == AF_UNSPEC) 660 mrt6_stats(nl[N_MRT6PROTO].n_value, 661 nl[N_MRT6STAT].n_value); 662 #endif 663 } 664 else { 665 if (af == AF_INET || af == AF_UNSPEC) 666 mroutepr(nl[N_MRTPROTO].n_value, 667 nl[N_MFCHASHTBL].n_value, 668 nl[N_MFCHASH].n_value, 669 nl[N_VIFTABLE].n_value); 670 #ifdef INET6 671 if (af == AF_INET6 || af == AF_UNSPEC) 672 mroute6pr(nl[N_MRT6PROTO].n_value, 673 nl[N_MF6CTABLE].n_value, 674 nl[N_MIF6TABLE].n_value); 675 #endif 676 } 677 exit(0); 678 } 679 #endif 680 protostat: 681 if (af == AF_INET || af == AF_UNSPEC) { 682 setprotoent(1); 683 setservent(1); 684 /* ugh, this is O(MN) ... why do we do this? */ 685 while ((p = getprotoent()) != NULL) { 686 for (tp = protox; tp->pr_name; tp++) 687 if (strcmp(tp->pr_name, p->p_name) == 0) 688 break; 689 if (tp->pr_name == 0 || tp->pr_wanted == 0) 690 continue; 691 printproto(tp, p->p_name); 692 tp->pr_wanted = 0; 693 } 694 endprotoent(); 695 for (tp = protox; tp->pr_name; tp++) 696 if (tp->pr_wanted) 697 printproto(tp, tp->pr_name); 698 } 699 #ifdef INET6 700 if (af == AF_INET6 || af == AF_UNSPEC) 701 for (tp = ip6protox; tp->pr_name; tp++) 702 printproto(tp, tp->pr_name); 703 #endif 704 if (af == AF_ARP || af == AF_UNSPEC) 705 for (tp = arpprotox; tp->pr_name; tp++) 706 printproto(tp, tp->pr_name); 707 #ifdef IPSEC 708 if (af == PF_KEY || af == AF_UNSPEC) 709 for (tp = pfkeyprotox; tp->pr_name; tp++) 710 printproto(tp, tp->pr_name); 711 #endif 712 #ifndef SMALL 713 if (af == AF_APPLETALK || af == AF_UNSPEC) 714 for (tp = atalkprotox; tp->pr_name; tp++) 715 printproto(tp, tp->pr_name); 716 #ifdef NS 717 if (af == AF_NS || af == AF_UNSPEC) 718 for (tp = nsprotox; tp->pr_name; tp++) 719 printproto(tp, tp->pr_name); 720 #endif 721 if (af == AF_ISO || af == AF_UNSPEC) 722 for (tp = isoprotox; tp->pr_name; tp++) 723 printproto(tp, tp->pr_name); 724 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 725 unixpr(nl[N_UNIXSW].n_value); 726 #endif 727 exit(0); 728 } 729 730 /* 731 * Print out protocol statistics or control blocks (per sflag). 732 * If the interface was not specifically requested, and the symbol 733 * is not in the namelist, ignore this one. 734 */ 735 static void 736 printproto(tp, name) 737 struct protox *tp; 738 char *name; 739 { 740 void (*pr) __P((u_long, char *)); 741 u_long off; 742 743 if (sflag) { 744 if (iflag) { 745 if (tp->pr_istats) 746 intpr(interval, nl[N_IFNET].n_value, 747 tp->pr_istats); 748 return; 749 } 750 else { 751 pr = tp->pr_stats; 752 off = nl[tp->pr_sindex].n_value; 753 } 754 } else { 755 pr = tp->pr_cblocks; 756 off = nl[tp->pr_index].n_value; 757 } 758 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 759 (*pr)(off, name); 760 } 761 } 762 763 /* 764 * Print softintrq status. 765 */ 766 void 767 print_softintrq() 768 { 769 struct ifqueue intrq, *ifq = &intrq; 770 const struct softintrq *siq; 771 u_long off; 772 773 for (siq = softintrq; siq->siq_name != NULL; siq++) { 774 off = nl[siq->siq_index].n_value; 775 if (off == 0) 776 continue; 777 778 kread(off, (char *)ifq, sizeof(*ifq)); 779 printf("%s:\n", siq->siq_name); 780 printf("\tqueue length: %d\n", ifq->ifq_len); 781 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 782 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 783 } 784 } 785 786 /* 787 * Read kernel memory, return 0 on success. 788 */ 789 int 790 kread(addr, buf, size) 791 u_long addr; 792 char *buf; 793 int size; 794 { 795 796 if (kvm_read(kvmd, addr, buf, size) != size) { 797 warnx("%s", kvm_geterr(kvmd)); 798 return (-1); 799 } 800 return (0); 801 } 802 803 char * 804 plural(n) 805 int n; 806 { 807 808 return (n != 1 ? "s" : ""); 809 } 810 811 char * 812 plurales(n) 813 int n; 814 { 815 816 return (n != 1 ? "es" : ""); 817 } 818 819 int 820 get_hardticks(void) 821 { 822 int hardticks; 823 824 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 825 sizeof(hardticks)); 826 return (hardticks); 827 } 828 829 /* 830 * Find the protox for the given "well-known" name. 831 */ 832 static struct protox * 833 knownname(name) 834 char *name; 835 { 836 struct protox **tpp, *tp; 837 838 for (tpp = protoprotox; *tpp; tpp++) 839 for (tp = *tpp; tp->pr_name; tp++) 840 if (strcmp(tp->pr_name, name) == 0) 841 return (tp); 842 return (NULL); 843 } 844 845 /* 846 * Find the protox corresponding to name. 847 */ 848 static struct protox * 849 name2protox(name) 850 char *name; 851 { 852 struct protox *tp; 853 char **alias; /* alias from p->aliases */ 854 struct protoent *p; 855 856 /* 857 * Try to find the name in the list of "well-known" names. If that 858 * fails, check if name is an alias for an Internet protocol. 859 */ 860 if ((tp = knownname(name)) != NULL) 861 return (tp); 862 863 setprotoent(1); /* make protocol lookup cheaper */ 864 while ((p = getprotoent()) != NULL) { 865 /* assert: name not same as p->name */ 866 for (alias = p->p_aliases; *alias; alias++) 867 if (strcmp(name, *alias) == 0) { 868 endprotoent(); 869 return (knownname(p->p_name)); 870 } 871 } 872 endprotoent(); 873 return (NULL); 874 } 875 876 static void 877 usage() 878 { 879 const char *progname = getprogname(); 880 881 (void)fprintf(stderr, 882 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 883 (void)fprintf(stderr, 884 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 885 progname); 886 (void)fprintf(stderr, 887 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 888 (void)fprintf(stderr, 889 " %s [-p protocol] [-M core] [-N system]\n", progname); 890 (void)fprintf(stderr, 891 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 892 (void)fprintf(stderr, 893 " %s [-p protocol] [-i] [-I Interface] \n", progname); 894 (void)fprintf(stderr, 895 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 896 (void)fprintf(stderr, 897 " %s [-s] [-B] [-I interface]\n", progname); 898 exit(1); 899 } 900
Indexes created Sat Oct 11 16:09:52 GMT 2025