main.c revision 1.60
1 /* $NetBSD: main.c,v 1.60 2006/09/14 20:43:50 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 1.60 2006/09/14 20:43:50 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 #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, buf)) == NULL) { 545 if (!use_sysctl) 546 errx(1, "%s", buf); 547 } else 548 use_sysctl = 0; 549 550 /* do this now anyway */ 551 if (use_sysctl) 552 (void)setgid(getgid()); 553 554 #ifndef SMALL 555 if (Bflag) { 556 if (sflag) 557 bpf_stats(); 558 else 559 bpf_dump(interface); 560 exit(0); 561 } 562 #endif 563 564 if (kvmd && (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) && !use_sysctl) { 565 if (nlistf) 566 errx(1, "%s: no namelist", nlistf); 567 else 568 errx(1, "no namelist"); 569 } 570 if (mflag) { 571 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 572 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 573 nl[N_MCLPOOL].n_value); 574 exit(0); 575 } 576 if (Pflag) { 577 if (tp == NULL) { 578 /* Default to TCP. */ 579 tp = name2protox("tcp"); 580 } 581 if (tp->pr_dump) 582 (*tp->pr_dump)(pcbaddr); 583 else 584 printf("%s: no PCB dump routine\n", tp->pr_name); 585 exit(0); 586 } 587 if (pflag) { 588 if (iflag && tp->pr_istats) 589 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 590 else if (tp->pr_stats) 591 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 592 tp->pr_name); 593 else 594 printf("%s: no stats routine\n", tp->pr_name); 595 exit(0); 596 } 597 if (qflag) { 598 print_softintrq(); 599 exit(0); 600 } 601 /* 602 * Keep file descriptors open to avoid overhead 603 * of open/close on each call to get* routines. 604 */ 605 sethostent(1); 606 setnetent(1); 607 if (iflag) { 608 if (af != AF_UNSPEC) 609 goto protostat; 610 611 intpr(interval, nl[N_IFNET].n_value, NULL); 612 exit(0); 613 } 614 if (rflag) { 615 if (sflag) 616 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 617 else { 618 if (use_sysctl) 619 p_rttables(af); 620 else 621 routepr(nl[N_RTREE].n_value); 622 } 623 exit(0); 624 } 625 #ifndef SMALL 626 if (gflag) { 627 if (sflag) { 628 if (af == AF_INET || af == AF_UNSPEC) 629 mrt_stats(nl[N_MRTPROTO].n_value, 630 nl[N_MRTSTAT].n_value); 631 #ifdef INET6 632 if (af == AF_INET6 || af == AF_UNSPEC) 633 mrt6_stats(nl[N_MRT6PROTO].n_value, 634 nl[N_MRT6STAT].n_value); 635 #endif 636 } 637 else { 638 if (af == AF_INET || af == AF_UNSPEC) 639 mroutepr(nl[N_MRTPROTO].n_value, 640 nl[N_MFCHASHTBL].n_value, 641 nl[N_MFCHASH].n_value, 642 nl[N_VIFTABLE].n_value); 643 #ifdef INET6 644 if (af == AF_INET6 || af == AF_UNSPEC) 645 mroute6pr(nl[N_MRT6PROTO].n_value, 646 nl[N_MF6CTABLE].n_value, 647 nl[N_MIF6TABLE].n_value); 648 #endif 649 } 650 exit(0); 651 } 652 #endif 653 protostat: 654 if (af == AF_INET || af == AF_UNSPEC) { 655 setprotoent(1); 656 setservent(1); 657 /* ugh, this is O(MN) ... why do we do this? */ 658 while ((p = getprotoent()) != NULL) { 659 for (tp = protox; tp->pr_name; tp++) 660 if (strcmp(tp->pr_name, p->p_name) == 0) 661 break; 662 if (tp->pr_name == 0 || tp->pr_wanted == 0) 663 continue; 664 printproto(tp, p->p_name); 665 tp->pr_wanted = 0; 666 } 667 endprotoent(); 668 for (tp = protox; tp->pr_name; tp++) 669 if (tp->pr_wanted) 670 printproto(tp, tp->pr_name); 671 } 672 #ifdef INET6 673 if (af == AF_INET6 || af == AF_UNSPEC) 674 for (tp = ip6protox; tp->pr_name; tp++) 675 printproto(tp, tp->pr_name); 676 #endif 677 if (af == AF_ARP || af == AF_UNSPEC) 678 for (tp = arpprotox; tp->pr_name; tp++) 679 printproto(tp, tp->pr_name); 680 #ifdef IPSEC 681 if (af == PF_KEY || af == AF_UNSPEC) 682 for (tp = pfkeyprotox; tp->pr_name; tp++) 683 printproto(tp, tp->pr_name); 684 #endif 685 #ifndef SMALL 686 if (af == AF_APPLETALK || af == AF_UNSPEC) 687 for (tp = atalkprotox; tp->pr_name; tp++) 688 printproto(tp, tp->pr_name); 689 #ifdef NS 690 if (af == AF_NS || af == AF_UNSPEC) 691 for (tp = nsprotox; tp->pr_name; tp++) 692 printproto(tp, tp->pr_name); 693 #endif 694 if (af == AF_ISO || af == AF_UNSPEC) 695 for (tp = isoprotox; tp->pr_name; tp++) 696 printproto(tp, tp->pr_name); 697 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 698 unixpr(nl[N_UNIXSW].n_value); 699 #endif 700 exit(0); 701 } 702 703 /* 704 * Print out protocol statistics or control blocks (per sflag). 705 * If the interface was not specifically requested, and the symbol 706 * is not in the namelist, ignore this one. 707 */ 708 static void 709 printproto(tp, name) 710 struct protox *tp; 711 char *name; 712 { 713 void (*pr) __P((u_long, char *)); 714 u_long off; 715 716 if (sflag) { 717 if (iflag) { 718 if (tp->pr_istats) 719 intpr(interval, nl[N_IFNET].n_value, 720 tp->pr_istats); 721 return; 722 } 723 else { 724 pr = tp->pr_stats; 725 off = nl[tp->pr_sindex].n_value; 726 } 727 } else { 728 pr = tp->pr_cblocks; 729 off = nl[tp->pr_index].n_value; 730 } 731 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 732 (*pr)(off, name); 733 } 734 } 735 736 /* 737 * Print softintrq status. 738 */ 739 void 740 print_softintrq() 741 { 742 struct ifqueue intrq, *ifq = &intrq; 743 const struct softintrq *siq; 744 u_long off; 745 746 for (siq = softintrq; siq->siq_name != NULL; siq++) { 747 off = nl[siq->siq_index].n_value; 748 if (off == 0) 749 continue; 750 751 kread(off, (char *)ifq, sizeof(*ifq)); 752 printf("%s:\n", siq->siq_name); 753 printf("\tqueue length: %d\n", ifq->ifq_len); 754 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 755 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 756 } 757 } 758 759 /* 760 * Read kernel memory, return 0 on success. 761 */ 762 int 763 kread(addr, buf, size) 764 u_long addr; 765 char *buf; 766 int size; 767 { 768 769 if (kvm_read(kvmd, addr, buf, size) != size) { 770 warnx("%s", kvm_geterr(kvmd)); 771 return (-1); 772 } 773 return (0); 774 } 775 776 char * 777 plural(n) 778 int n; 779 { 780 781 return (n != 1 ? "s" : ""); 782 } 783 784 char * 785 plurales(n) 786 int n; 787 { 788 789 return (n != 1 ? "es" : ""); 790 } 791 792 int 793 get_hardticks(void) 794 { 795 int hardticks; 796 797 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 798 sizeof(hardticks)); 799 return (hardticks); 800 } 801 802 /* 803 * Find the protox for the given "well-known" name. 804 */ 805 static struct protox * 806 knownname(name) 807 char *name; 808 { 809 struct protox **tpp, *tp; 810 811 for (tpp = protoprotox; *tpp; tpp++) 812 for (tp = *tpp; tp->pr_name; tp++) 813 if (strcmp(tp->pr_name, name) == 0) 814 return (tp); 815 return (NULL); 816 } 817 818 /* 819 * Find the protox corresponding to name. 820 */ 821 static struct protox * 822 name2protox(name) 823 char *name; 824 { 825 struct protox *tp; 826 char **alias; /* alias from p->aliases */ 827 struct protoent *p; 828 829 /* 830 * Try to find the name in the list of "well-known" names. If that 831 * fails, check if name is an alias for an Internet protocol. 832 */ 833 if ((tp = knownname(name)) != NULL) 834 return (tp); 835 836 setprotoent(1); /* make protocol lookup cheaper */ 837 while ((p = getprotoent()) != NULL) { 838 /* assert: name not same as p->name */ 839 for (alias = p->p_aliases; *alias; alias++) 840 if (strcmp(name, *alias) == 0) { 841 endprotoent(); 842 return (knownname(p->p_name)); 843 } 844 } 845 endprotoent(); 846 return (NULL); 847 } 848 849 static void 850 usage() 851 { 852 const char *progname = getprogname(); 853 854 (void)fprintf(stderr, 855 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 856 (void)fprintf(stderr, 857 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 858 progname); 859 (void)fprintf(stderr, 860 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 861 (void)fprintf(stderr, 862 " %s [-p protocol] [-M core] [-N system]\n", progname); 863 (void)fprintf(stderr, 864 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 865 (void)fprintf(stderr, 866 " %s [-p protocol] [-i] [-I Interface] \n", progname); 867 (void)fprintf(stderr, 868 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 869 (void)fprintf(stderr, 870 " %s [-s] [-B] [-I interface]\n", progname); 871 exit(1); 872 } 873
Indexes created Sat Oct 11 16:09:52 GMT 2025