1 /* $NetBSD: main.c,v 1.63 2006/11/15 11:55:00 elad 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 1.63 2006/11/15 11:55:00 elad 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 *); 373 374 kvm_t *kvmd; 375 gid_t egid; 376 377 void 378 prepare(char *nlistf, char *memf) 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 #endif 394 Pflag) { 395 /* These flags are not yet supported via sysctl(3). */ 396 use_sysctl = 0; 397 } else { 398 /* We can use sysctl(3). */ 399 use_sysctl = 1; 400 } 401 402 if (!use_sysctl) { 403 (void)setegid(egid); 404 kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf); 405 (void)setgid(getgid()); 406 if (kvmd == NULL) 407 err(1, "kvm error: %s", buf); 408 409 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 410 if (nlistf) 411 errx(1, "%s: no namelist", nlistf); 412 else 413 errx(1, "no namelist"); 414 } 415 } else 416 (void)setgid(getgid()); 417 } 418 419 int 420 main(argc, argv) 421 int argc; 422 char *argv[]; 423 { 424 struct protoent *p; 425 struct protox *tp; /* for printing cblocks & stats */ 426 int ch; 427 char *nlistf = NULL, *memf = NULL; 428 char *cp; 429 u_long pcbaddr; 430 431 egid = getegid(); 432 (void)setegid(getgid()); 433 tp = NULL; 434 af = AF_UNSPEC; 435 pcbaddr = 0; 436 437 while ((ch = getopt(argc, argv, 438 "AabBdf:ghI:LliM:mN:nP:p:qrsStuvw:")) != -1) 439 switch (ch) { 440 case 'A': 441 Aflag = 1; 442 break; 443 case 'a': 444 aflag = 1; 445 break; 446 case 'b': 447 bflag = 1; 448 break; 449 case 'B': 450 Bflag = 1; 451 break; 452 case 'd': 453 dflag = 1; 454 break; 455 case 'f': 456 #ifdef NS 457 if (strcmp(optarg, "ns") == 0) { 458 af = AF_NS; 459 break; 460 } 461 #endif 462 if (strcmp(optarg, "inet") == 0) 463 af = AF_INET; 464 else if (strcmp(optarg, "inet6") == 0) 465 af = AF_INET6; 466 else if (strcmp(optarg, "arp") == 0) 467 af = AF_ARP; 468 else if (strcmp(optarg, "pfkey") == 0) 469 af = PF_KEY; 470 else if (strcmp(optarg, "unix") == 0 471 || strcmp(optarg, "local") == 0) 472 af = AF_LOCAL; 473 else if (strcmp(optarg, "iso") == 0) 474 af = AF_ISO; 475 else if (strcmp(optarg, "atalk") == 0) 476 af = AF_APPLETALK; 477 else 478 errx(1, "%s: unknown address family", 479 optarg); 480 break; 481 #ifndef SMALL 482 case 'g': 483 gflag = 1; 484 break; 485 #endif 486 case 'I': 487 iflag = 1; 488 interface = optarg; 489 break; 490 case 'i': 491 iflag = 1; 492 break; 493 case 'L': 494 Lflag = 1; 495 break; 496 case 'l': 497 lflag = 1; 498 break; 499 case 'M': 500 memf = optarg; 501 break; 502 case 'm': 503 mflag = 1; 504 break; 505 case 'N': 506 nlistf = optarg; 507 break; 508 case 'n': 509 numeric_addr = numeric_port = nflag = 1; 510 break; 511 case 'P': 512 errno = 0; 513 pcbaddr = strtoul(optarg, &cp, 16); 514 if (*cp != '\0' || errno == ERANGE) 515 errx(1, "invalid PCB address %s", 516 optarg); 517 Pflag = 1; 518 break; 519 case 'p': 520 if ((tp = name2protox(optarg)) == NULL) 521 errx(1, "%s: unknown or uninstrumented protocol", 522 optarg); 523 pflag = 1; 524 break; 525 case 'q': 526 qflag = 1; 527 break; 528 case 'r': 529 rflag = 1; 530 break; 531 case 's': 532 ++sflag; 533 break; 534 case 'S': 535 numeric_addr = 1; 536 break; 537 case 't': 538 tflag = 1; 539 break; 540 case 'u': 541 af = AF_LOCAL; 542 break; 543 case 'v': 544 vflag++; 545 break; 546 case 'w': 547 interval = atoi(optarg); 548 iflag = 1; 549 break; 550 case '?': 551 default: 552 usage(); 553 } 554 argv += optind; 555 argc -= optind; 556 557 #define BACKWARD_COMPATIBILITY 558 #ifdef BACKWARD_COMPATIBILITY 559 if (*argv) { 560 if (isdigit((unsigned char)**argv)) { 561 interval = atoi(*argv); 562 if (interval <= 0) 563 usage(); 564 ++argv; 565 iflag = 1; 566 } 567 if (*argv) { 568 nlistf = *argv; 569 if (*++argv) 570 memf = *argv; 571 } 572 } 573 #endif 574 575 prepare(nlistf, memf); 576 577 #ifndef SMALL 578 if (Bflag) { 579 if (sflag) 580 bpf_stats(); 581 else 582 bpf_dump(interface); 583 exit(0); 584 } 585 #endif 586 587 if (mflag) { 588 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 589 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 590 nl[N_MCLPOOL].n_value); 591 exit(0); 592 } 593 if (Pflag) { 594 if (tp == NULL) { 595 /* Default to TCP. */ 596 tp = name2protox("tcp"); 597 } 598 if (tp->pr_dump) 599 (*tp->pr_dump)(pcbaddr); 600 else 601 printf("%s: no PCB dump routine\n", tp->pr_name); 602 exit(0); 603 } 604 if (pflag) { 605 if (iflag && tp->pr_istats) 606 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 607 else if (tp->pr_stats) 608 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 609 tp->pr_name); 610 else 611 printf("%s: no stats routine\n", tp->pr_name); 612 exit(0); 613 } 614 if (qflag) { 615 print_softintrq(); 616 exit(0); 617 } 618 /* 619 * Keep file descriptors open to avoid overhead 620 * of open/close on each call to get* routines. 621 */ 622 sethostent(1); 623 setnetent(1); 624 if (iflag) { 625 if (af != AF_UNSPEC) 626 goto protostat; 627 628 intpr(interval, nl[N_IFNET].n_value, NULL); 629 exit(0); 630 } 631 if (rflag) { 632 if (sflag) 633 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 634 else { 635 if (use_sysctl) 636 p_rttables(af); 637 else 638 routepr(nl[N_RTREE].n_value); 639 } 640 exit(0); 641 } 642 #ifndef SMALL 643 if (gflag) { 644 if (sflag) { 645 if (af == AF_INET || af == AF_UNSPEC) 646 mrt_stats(nl[N_MRTPROTO].n_value, 647 nl[N_MRTSTAT].n_value); 648 #ifdef INET6 649 if (af == AF_INET6 || af == AF_UNSPEC) 650 mrt6_stats(nl[N_MRT6PROTO].n_value, 651 nl[N_MRT6STAT].n_value); 652 #endif 653 } 654 else { 655 if (af == AF_INET || af == AF_UNSPEC) 656 mroutepr(nl[N_MRTPROTO].n_value, 657 nl[N_MFCHASHTBL].n_value, 658 nl[N_MFCHASH].n_value, 659 nl[N_VIFTABLE].n_value); 660 #ifdef INET6 661 if (af == AF_INET6 || af == AF_UNSPEC) 662 mroute6pr(nl[N_MRT6PROTO].n_value, 663 nl[N_MF6CTABLE].n_value, 664 nl[N_MIF6TABLE].n_value); 665 #endif 666 } 667 exit(0); 668 } 669 #endif 670 protostat: 671 if (af == AF_INET || af == AF_UNSPEC) { 672 setprotoent(1); 673 setservent(1); 674 /* ugh, this is O(MN) ... why do we do this? */ 675 while ((p = getprotoent()) != NULL) { 676 for (tp = protox; tp->pr_name; tp++) 677 if (strcmp(tp->pr_name, p->p_name) == 0) 678 break; 679 if (tp->pr_name == 0 || tp->pr_wanted == 0) 680 continue; 681 printproto(tp, p->p_name); 682 tp->pr_wanted = 0; 683 } 684 endprotoent(); 685 for (tp = protox; tp->pr_name; tp++) 686 if (tp->pr_wanted) 687 printproto(tp, tp->pr_name); 688 } 689 #ifdef INET6 690 if (af == AF_INET6 || af == AF_UNSPEC) 691 for (tp = ip6protox; tp->pr_name; tp++) 692 printproto(tp, tp->pr_name); 693 #endif 694 if (af == AF_ARP || af == AF_UNSPEC) 695 for (tp = arpprotox; tp->pr_name; tp++) 696 printproto(tp, tp->pr_name); 697 #ifdef IPSEC 698 if (af == PF_KEY || af == AF_UNSPEC) 699 for (tp = pfkeyprotox; tp->pr_name; tp++) 700 printproto(tp, tp->pr_name); 701 #endif 702 #ifndef SMALL 703 if (af == AF_APPLETALK || af == AF_UNSPEC) 704 for (tp = atalkprotox; tp->pr_name; tp++) 705 printproto(tp, tp->pr_name); 706 #ifdef NS 707 if (af == AF_NS || af == AF_UNSPEC) 708 for (tp = nsprotox; tp->pr_name; tp++) 709 printproto(tp, tp->pr_name); 710 #endif 711 if (af == AF_ISO || af == AF_UNSPEC) 712 for (tp = isoprotox; tp->pr_name; tp++) 713 printproto(tp, tp->pr_name); 714 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 715 unixpr(nl[N_UNIXSW].n_value); 716 #endif 717 exit(0); 718 } 719 720 /* 721 * Print out protocol statistics or control blocks (per sflag). 722 * If the interface was not specifically requested, and the symbol 723 * is not in the namelist, ignore this one. 724 */ 725 static void 726 printproto(tp, name) 727 struct protox *tp; 728 char *name; 729 { 730 void (*pr) __P((u_long, char *)); 731 u_long off; 732 733 if (sflag) { 734 if (iflag) { 735 if (tp->pr_istats) 736 intpr(interval, nl[N_IFNET].n_value, 737 tp->pr_istats); 738 return; 739 } 740 else { 741 pr = tp->pr_stats; 742 off = nl[tp->pr_sindex].n_value; 743 } 744 } else { 745 pr = tp->pr_cblocks; 746 off = nl[tp->pr_index].n_value; 747 } 748 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 749 (*pr)(off, name); 750 } 751 } 752 753 /* 754 * Print softintrq status. 755 */ 756 void 757 print_softintrq() 758 { 759 struct ifqueue intrq, *ifq = &intrq; 760 const struct softintrq *siq; 761 u_long off; 762 763 for (siq = softintrq; siq->siq_name != NULL; siq++) { 764 off = nl[siq->siq_index].n_value; 765 if (off == 0) 766 continue; 767 768 kread(off, (char *)ifq, sizeof(*ifq)); 769 printf("%s:\n", siq->siq_name); 770 printf("\tqueue length: %d\n", ifq->ifq_len); 771 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 772 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 773 } 774 } 775 776 /* 777 * Read kernel memory, return 0 on success. 778 */ 779 int 780 kread(addr, buf, size) 781 u_long addr; 782 char *buf; 783 int size; 784 { 785 786 if (kvm_read(kvmd, addr, buf, size) != size) { 787 warnx("%s", kvm_geterr(kvmd)); 788 return (-1); 789 } 790 return (0); 791 } 792 793 char * 794 plural(n) 795 int n; 796 { 797 798 return (n != 1 ? "s" : ""); 799 } 800 801 char * 802 plurales(n) 803 int n; 804 { 805 806 return (n != 1 ? "es" : ""); 807 } 808 809 int 810 get_hardticks(void) 811 { 812 int hardticks; 813 814 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 815 sizeof(hardticks)); 816 return (hardticks); 817 } 818 819 /* 820 * Find the protox for the given "well-known" name. 821 */ 822 static struct protox * 823 knownname(name) 824 char *name; 825 { 826 struct protox **tpp, *tp; 827 828 for (tpp = protoprotox; *tpp; tpp++) 829 for (tp = *tpp; tp->pr_name; tp++) 830 if (strcmp(tp->pr_name, name) == 0) 831 return (tp); 832 return (NULL); 833 } 834 835 /* 836 * Find the protox corresponding to name. 837 */ 838 static struct protox * 839 name2protox(name) 840 char *name; 841 { 842 struct protox *tp; 843 char **alias; /* alias from p->aliases */ 844 struct protoent *p; 845 846 /* 847 * Try to find the name in the list of "well-known" names. If that 848 * fails, check if name is an alias for an Internet protocol. 849 */ 850 if ((tp = knownname(name)) != NULL) 851 return (tp); 852 853 setprotoent(1); /* make protocol lookup cheaper */ 854 while ((p = getprotoent()) != NULL) { 855 /* assert: name not same as p->name */ 856 for (alias = p->p_aliases; *alias; alias++) 857 if (strcmp(name, *alias) == 0) { 858 endprotoent(); 859 return (knownname(p->p_name)); 860 } 861 } 862 endprotoent(); 863 return (NULL); 864 } 865 866 static void 867 usage() 868 { 869 const char *progname = getprogname(); 870 871 (void)fprintf(stderr, 872 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 873 (void)fprintf(stderr, 874 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 875 progname); 876 (void)fprintf(stderr, 877 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 878 (void)fprintf(stderr, 879 " %s [-p protocol] [-M core] [-N system]\n", progname); 880 (void)fprintf(stderr, 881 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 882 (void)fprintf(stderr, 883 " %s [-p protocol] [-i] [-I Interface] \n", progname); 884 (void)fprintf(stderr, 885 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 886 (void)fprintf(stderr, 887 " %s [-s] [-B] [-I interface]\n", progname); 888 exit(1); 889 } 890