main.c revision 1.37
1 /* $NetBSD: main.c,v 1.37 2002/07/03 01:42:59 enami 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1983, 1988, 1993\n\ 39 Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "from: @(#)main.c 8.4 (Berkeley) 3/1/94"; 45 #else 46 __RCSID("$NetBSD: main.c,v 1.37 2002/07/03 01:42:59 enami Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/file.h> 52 #include <sys/protosw.h> 53 #include <sys/socket.h> 54 55 #include <net/if.h> 56 #include <netinet/in.h> 57 58 #include <ctype.h> 59 #include <err.h> 60 #include <errno.h> 61 #include <kvm.h> 62 #include <limits.h> 63 #include <netdb.h> 64 #include <nlist.h> 65 #include <paths.h> 66 #include <stdio.h> 67 #include <stdlib.h> 68 #include <string.h> 69 #include <unistd.h> 70 #include "netstat.h" 71 72 struct nlist nl[] = { 73 #define N_MBSTAT 0 74 { "_mbstat" }, 75 #define N_IPSTAT 1 76 { "_ipstat" }, 77 #define N_TCBTABLE 2 78 { "_tcbtable" }, 79 #define N_TCPSTAT 3 80 { "_tcpstat" }, 81 #define N_UDBTABLE 4 82 { "_udbtable" }, 83 #define N_UDPSTAT 5 84 { "_udpstat" }, 85 #define N_IFNET 6 86 { "_ifnet" }, 87 #define N_IMP 7 88 { "_imp_softc" }, 89 #define N_ICMPSTAT 8 90 { "_icmpstat" }, 91 #define N_RTSTAT 9 92 { "_rtstat" }, 93 #define N_UNIXSW 10 94 { "_unixsw" }, 95 #define N_IDP 11 96 { "_nspcb"}, 97 #define N_IDPSTAT 12 98 { "_idpstat"}, 99 #define N_SPPSTAT 13 100 { "_spp_istat"}, 101 #define N_NSERR 14 102 { "_ns_errstat"}, 103 #define N_CLNPSTAT 15 104 { "_clnp_stat"}, 105 #define IN_NOTUSED 16 106 { "_tp_inpcb" }, 107 #define ISO_TP 17 108 { "_tp_refinfo" }, 109 #define N_TPSTAT 18 110 { "_tp_stat" }, 111 #define N_ESISSTAT 19 112 { "_esis_stat"}, 113 #define N_NIMP 20 114 { "_nimp"}, 115 #define N_RTREE 21 116 { "_rt_tables"}, 117 #define N_CLTP 22 118 { "_cltb"}, 119 #define N_CLTPSTAT 23 120 { "_cltpstat"}, 121 #define N_NFILE 24 122 { "_nfile" }, 123 #define N_FILE 25 124 { "_file" }, 125 #define N_IGMPSTAT 26 126 { "_igmpstat" }, 127 #define N_MRTPROTO 27 128 { "_ip_mrtproto" }, 129 #define N_MRTSTAT 28 130 { "_mrtstat" }, 131 #define N_MFCHASHTBL 29 132 { "_mfchashtbl" }, 133 #define N_MFCHASH 30 134 { "_mfchash" }, 135 #define N_VIFTABLE 31 136 { "_viftable" }, 137 #define N_MSIZE 32 138 { "_msize" }, 139 #define N_MCLBYTES 33 140 { "_mclbytes" }, 141 #define N_DDPSTAT 34 142 { "_ddpstat"}, 143 #define N_DDPCB 35 144 { "_ddpcb"}, 145 #define N_MBPOOL 36 146 { "_mbpool" }, 147 #define N_MCLPOOL 37 148 { "_mclpool" }, 149 #define N_DIVPCB 38 150 { "_divcb"}, 151 #define N_DIVSTAT 39 152 { "_divstat"}, 153 #define N_IP6STAT 40 154 { "_ip6stat" }, 155 #define N_TCB6 41 156 { "_tcb6" }, 157 #define N_TCP6STAT 42 158 { "_tcp6stat" }, 159 #define N_UDB6 43 160 { "_udb6" }, 161 #define N_UDP6STAT 44 162 { "_udp6stat" }, 163 #define N_ICMP6STAT 45 164 { "_icmp6stat" }, 165 #define N_IPSECSTAT 46 166 { "_ipsecstat" }, 167 #define N_IPSEC6STAT 47 168 { "_ipsec6stat" }, 169 #define N_PIM6STAT 48 170 { "_pim6stat" }, 171 #define N_MRT6PROTO 49 172 { "_ip6_mrtproto" }, 173 #define N_MRT6STAT 50 174 { "_mrt6stat" }, 175 #define N_MF6CTABLE 51 176 { "_mf6ctable" }, 177 #define N_MIF6TABLE 52 178 { "_mif6table" }, 179 #define N_PFKEYSTAT 53 180 { "_pfkeystat" }, 181 #define N_ARPSTAT 54 182 { "_arpstat" }, 183 #define N_RIP6STAT 55 184 { "_rip6stat" }, 185 #define N_ARPINTRQ 56 186 { "_arpintrq" }, 187 #define N_IPINTRQ 57 188 { "_ipintrq" }, 189 #define N_IP6INTRQ 58 190 { "_ip6intrq" }, 191 #define N_ATINTRQ1 59 192 { "_atintrq1" }, 193 #define N_ATINTRQ2 60 194 { "_atintrq2" }, 195 #define N_NSINTRQ 61 196 { "_nsintrq" }, 197 #define N_CLNLINTRQ 62 198 { "_clnlintrq" }, 199 #define N_LLCINTRQ 63 200 { "_llcintrq" }, 201 #define N_HDINTRQ 64 202 { "_hdintrq" }, 203 #define N_NATMINTRQ 65 204 { "_natmintrq" }, 205 { "" }, 206 }; 207 208 struct protox { 209 u_char pr_index; /* index into nlist of cb head */ 210 u_char pr_sindex; /* index into nlist of stat block */ 211 u_char pr_wanted; /* 1 if wanted, 0 otherwise */ 212 void (*pr_cblocks) /* control blocks printing routine */ 213 __P((u_long, char *)); 214 void (*pr_stats) /* statistics printing routine */ 215 __P((u_long, char *)); 216 void (*pr_istats) 217 __P((char *)); /* per/if statistics printing routine */ 218 void (*pr_dump) /* PCB state dump routine */ 219 __P((u_long)); 220 char *pr_name; /* well-known name */ 221 } protox[] = { 222 { N_TCBTABLE, N_TCPSTAT, 1, protopr, 223 tcp_stats, NULL, tcp_dump, "tcp" }, 224 { N_UDBTABLE, N_UDPSTAT, 1, protopr, 225 udp_stats, NULL, 0, "udp" }, 226 { -1, N_IPSTAT, 1, 0, 227 ip_stats, NULL, 0, "ip" }, 228 { -1, N_ICMPSTAT, 1, 0, 229 icmp_stats, NULL, 0, "icmp" }, 230 { -1, N_IGMPSTAT, 1, 0, 231 igmp_stats, NULL, 0, "igmp" }, 232 #ifdef IPSEC 233 { -1, N_IPSECSTAT, 1, 0, 234 ipsec_stats, NULL, 0, "ipsec" }, 235 #endif 236 { -1, -1, 0, 0, 237 0, NULL, 0, 0 } 238 }; 239 240 #ifdef INET6 241 struct protox ip6protox[] = { 242 { -1, N_IP6STAT, 1, 0, 243 ip6_stats, ip6_ifstats, 0, "ip6" }, 244 { -1, N_ICMP6STAT, 1, 0, 245 icmp6_stats, icmp6_ifstats, 0, "icmp6" }, 246 #ifdef TCP6 247 { N_TCB6, N_TCP6STAT, 1, ip6protopr, 248 tcp6_stats, NULL, tcp6_dump, "tcp6" }, 249 #else 250 { N_TCB6, N_TCP6STAT, 1, ip6protopr, 251 tcp_stats, NULL, tcp_dump, "tcp6" }, 252 #endif 253 { N_UDB6, N_UDP6STAT, 1, ip6protopr, 254 udp6_stats, NULL, 0, "udp6" }, 255 #ifdef IPSEC 256 { -1, N_IPSEC6STAT, 1, 0, 257 ipsec_stats, NULL, 0, "ipsec6" }, 258 #endif 259 { -1, N_PIM6STAT, 1, 0, 260 pim6_stats, NULL, 0, "pim6" }, 261 { -1, N_RIP6STAT, 1, 0, 262 rip6_stats, NULL, 0, "rip6" }, 263 { -1, -1, 0, 0, 264 0, NULL, 0, 0 } 265 }; 266 #endif 267 268 struct protox arpprotox[] = { 269 { -1, N_ARPSTAT, 1, 0, 270 arp_stats, NULL, 0, "arp" }, 271 { -1, -1, 0, 0, 272 0, NULL, 0, 0 } 273 }; 274 275 #ifdef IPSEC 276 struct protox pfkeyprotox[] = { 277 { -1, N_PFKEYSTAT, 1, 0, 278 pfkey_stats, NULL, 0, "pfkey" }, 279 { -1, -1, 0, 0, 280 0, NULL, 0, 0 } 281 }; 282 #endif 283 284 #ifndef SMALL 285 struct protox atalkprotox[] = { 286 { N_DDPCB, N_DDPSTAT, 1, atalkprotopr, 287 ddp_stats, NULL, 0, "ddp" }, 288 { -1, -1, 0, 0, 289 0, NULL, 0 } 290 }; 291 292 struct protox nsprotox[] = { 293 { N_IDP, N_IDPSTAT, 1, nsprotopr, 294 idp_stats, NULL, 0, "idp" }, 295 { N_IDP, N_SPPSTAT, 1, nsprotopr, 296 spp_stats, NULL, 0, "spp" }, 297 { -1, N_NSERR, 1, 0, 298 nserr_stats, NULL, 0, "ns_err" }, 299 { -1, -1, 0, 0, 300 0, NULL, 0 } 301 }; 302 303 struct protox isoprotox[] = { 304 { ISO_TP, N_TPSTAT, 1, iso_protopr, 305 tp_stats, NULL, 0, "tp" }, 306 { N_CLTP, N_CLTPSTAT, 1, iso_protopr, 307 cltp_stats, NULL, 0, "cltp" }, 308 { -1, N_CLNPSTAT, 1, 0, 309 clnp_stats, NULL, 0, "clnp"}, 310 { -1, N_ESISSTAT, 1, 0, 311 esis_stats, NULL, 0, "esis"}, 312 { -1, -1, 0, 0, 313 0, NULL, 0, 0 } 314 }; 315 #endif 316 317 struct protox *protoprotox[] = { protox, 318 #ifdef INET6 319 ip6protox, 320 #endif 321 arpprotox, 322 #ifdef IPSEC 323 pfkeyprotox, 324 #endif 325 #ifndef SMALL 326 atalkprotox, nsprotox, isoprotox, 327 #endif 328 NULL }; 329 330 const struct softintrq { 331 const char *siq_name; 332 int siq_index; 333 } softintrq[] = { 334 { "arpintrq", N_ARPINTRQ }, 335 { "ipintrq", N_IPINTRQ }, 336 { "ip6intrq", N_IP6INTRQ }, 337 { "atintrq1", N_ATINTRQ1 }, 338 { "atintrq2", N_ATINTRQ2 }, 339 { "nsintrq", N_NSINTRQ }, 340 { "clnlintrq", N_CLNLINTRQ }, 341 { "llcintrq", N_LLCINTRQ }, 342 { "hdintrq", N_HDINTRQ }, 343 { "natmintrq", N_NATMINTRQ }, 344 { NULL, -1 }, 345 }; 346 347 int main __P((int, char *[])); 348 static void printproto __P((struct protox *, char *)); 349 static void print_softintrq __P((void)); 350 static void usage __P((void)); 351 static struct protox *name2protox __P((char *)); 352 static struct protox *knownname __P((char *)); 353 354 kvm_t *kvmd; 355 356 int 357 main(argc, argv) 358 int argc; 359 char *argv[]; 360 { 361 struct protoent *p; 362 struct protox *tp; /* for printing cblocks & stats */ 363 int ch; 364 char *nlistf = NULL, *memf = NULL; 365 char buf[_POSIX2_LINE_MAX], *cp; 366 u_long pcbaddr; 367 gid_t egid = getegid(); 368 369 (void)setegid(getgid()); 370 tp = NULL; 371 af = AF_UNSPEC; 372 pcbaddr = 0; 373 374 while ((ch = getopt(argc, argv, 375 "Aabdf:ghI:LliM:mN:nP:p:qrsStuvw:")) != -1) 376 switch (ch) { 377 case 'A': 378 Aflag = 1; 379 break; 380 case 'a': 381 aflag = 1; 382 break; 383 case 'b': 384 bflag = 1; 385 break; 386 case 'd': 387 dflag = 1; 388 break; 389 case 'f': 390 if (strcmp(optarg, "ns") == 0) 391 af = AF_NS; 392 else if (strcmp(optarg, "inet") == 0) 393 af = AF_INET; 394 else if (strcmp(optarg, "inet6") == 0) 395 af = AF_INET6; 396 else if (strcmp(optarg, "arp") == 0) 397 af = AF_ARP; 398 else if (strcmp(optarg, "pfkey") == 0) 399 af = PF_KEY; 400 else if (strcmp(optarg, "unix") == 0 401 || strcmp(optarg, "local") == 0) 402 af = AF_LOCAL; 403 else if (strcmp(optarg, "iso") == 0) 404 af = AF_ISO; 405 else if (strcmp(optarg, "atalk") == 0) 406 af = AF_APPLETALK; 407 else 408 errx(1, "%s: unknown address family", 409 optarg); 410 break; 411 #ifndef SMALL 412 case 'g': 413 gflag = 1; 414 break; 415 #endif 416 case 'I': 417 iflag = 1; 418 interface = optarg; 419 break; 420 case 'i': 421 iflag = 1; 422 break; 423 case 'L': 424 Lflag = 1; 425 break; 426 case 'l': 427 lflag = 1; 428 break; 429 case 'M': 430 memf = optarg; 431 break; 432 case 'm': 433 mflag = 1; 434 break; 435 case 'N': 436 nlistf = optarg; 437 break; 438 case 'n': 439 numeric_addr = numeric_port = 1; 440 break; 441 case 'P': 442 pcbaddr = strtoul(optarg, &cp, 16); 443 if (*cp != '\0' || errno == ERANGE) 444 errx(1, "invalid PCB address %s", 445 optarg); 446 Pflag = 1; 447 break; 448 case 'p': 449 if ((tp = name2protox(optarg)) == NULL) 450 errx(1, "%s: unknown or uninstrumented protocol", 451 optarg); 452 pflag = 1; 453 break; 454 case 'q': 455 qflag = 1; 456 break; 457 case 'r': 458 rflag = 1; 459 break; 460 case 's': 461 ++sflag; 462 break; 463 case 'S': 464 numeric_addr = 1; 465 break; 466 case 't': 467 tflag = 1; 468 break; 469 case 'u': 470 af = AF_LOCAL; 471 break; 472 case 'v': 473 vflag = 1; 474 break; 475 case 'w': 476 interval = atoi(optarg); 477 iflag = 1; 478 break; 479 case '?': 480 default: 481 usage(); 482 } 483 argv += optind; 484 argc -= optind; 485 486 #define BACKWARD_COMPATIBILITY 487 #ifdef BACKWARD_COMPATIBILITY 488 if (*argv) { 489 if (isdigit(**argv)) { 490 interval = atoi(*argv); 491 if (interval <= 0) 492 usage(); 493 ++argv; 494 iflag = 1; 495 } 496 if (*argv) { 497 nlistf = *argv; 498 if (*++argv) 499 memf = *argv; 500 } 501 } 502 #endif 503 504 /* 505 * Discard setgid privileges. If not the running kernel, we toss 506 * them away totally so that bad guys can't print interesting stuff 507 * from kernel memory, otherwise switch back to kmem for the 508 * duration of the kvm_openfiles() call. 509 */ 510 if (nlistf != NULL || memf != NULL || Pflag) 511 (void)setgid(getgid()); 512 else 513 (void)setegid(egid); 514 515 if ((kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, 516 buf)) == NULL) 517 errx(1, "%s", buf); 518 519 /* do this now anyway */ 520 if (nlistf == NULL && memf == NULL) 521 (void)setgid(getgid()); 522 523 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 524 if (nlistf) 525 errx(1, "%s: no namelist", nlistf); 526 else 527 errx(1, "no namelist"); 528 } 529 if (mflag) { 530 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 531 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 532 nl[N_MCLPOOL].n_value); 533 exit(0); 534 } 535 if (Pflag) { 536 if (tp == NULL) { 537 /* Default to TCP. */ 538 tp = name2protox("tcp"); 539 } 540 if (tp->pr_dump) 541 (*tp->pr_dump)(pcbaddr); 542 else 543 printf("%s: no PCB dump routine\n", tp->pr_name); 544 exit(0); 545 } 546 if (pflag) { 547 if (iflag && tp->pr_istats) 548 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 549 else if (tp->pr_stats) 550 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 551 tp->pr_name); 552 else 553 printf("%s: no stats routine\n", tp->pr_name); 554 exit(0); 555 } 556 if (qflag) { 557 print_softintrq(); 558 exit(0); 559 } 560 /* 561 * Keep file descriptors open to avoid overhead 562 * of open/close on each call to get* routines. 563 */ 564 sethostent(1); 565 setnetent(1); 566 if (iflag) { 567 if (af != AF_UNSPEC) 568 goto protostat; 569 570 intpr(interval, nl[N_IFNET].n_value, NULL); 571 exit(0); 572 } 573 if (rflag) { 574 if (sflag) 575 rt_stats(nl[N_RTSTAT].n_value); 576 else 577 routepr(nl[N_RTREE].n_value); 578 exit(0); 579 } 580 #ifndef SMALL 581 if (gflag) { 582 if (sflag) { 583 if (af == AF_INET || af == AF_UNSPEC) 584 mrt_stats(nl[N_MRTPROTO].n_value, 585 nl[N_MRTSTAT].n_value); 586 #ifdef INET6 587 if (af == AF_INET6 || af == AF_UNSPEC) 588 mrt6_stats(nl[N_MRT6PROTO].n_value, 589 nl[N_MRT6STAT].n_value); 590 #endif 591 } 592 else { 593 if (af == AF_INET || af == AF_UNSPEC) 594 mroutepr(nl[N_MRTPROTO].n_value, 595 nl[N_MFCHASHTBL].n_value, 596 nl[N_MFCHASH].n_value, 597 nl[N_VIFTABLE].n_value); 598 #ifdef INET6 599 if (af == AF_INET6 || af == AF_UNSPEC) 600 mroute6pr(nl[N_MRT6PROTO].n_value, 601 nl[N_MF6CTABLE].n_value, 602 nl[N_MIF6TABLE].n_value); 603 #endif 604 } 605 exit(0); 606 } 607 #endif 608 protostat: 609 if (af == AF_INET || af == AF_UNSPEC) { 610 setprotoent(1); 611 setservent(1); 612 /* ugh, this is O(MN) ... why do we do this? */ 613 while ((p = getprotoent()) != NULL) { 614 for (tp = protox; tp->pr_name; tp++) 615 if (strcmp(tp->pr_name, p->p_name) == 0) 616 break; 617 if (tp->pr_name == 0 || tp->pr_wanted == 0) 618 continue; 619 printproto(tp, p->p_name); 620 tp->pr_wanted = 0; 621 } 622 endprotoent(); 623 for (tp = protox; tp->pr_name; tp++) 624 if (tp->pr_wanted) 625 printproto(tp, tp->pr_name); 626 } 627 #ifdef INET6 628 if (af == AF_INET6 || af == AF_UNSPEC) 629 for (tp = ip6protox; tp->pr_name; tp++) 630 printproto(tp, tp->pr_name); 631 #endif 632 if (af == AF_ARP || af == AF_UNSPEC) 633 for (tp = arpprotox; tp->pr_name; tp++) 634 printproto(tp, tp->pr_name); 635 #ifdef IPSEC 636 if (af == PF_KEY || af == AF_UNSPEC) 637 for (tp = pfkeyprotox; tp->pr_name; tp++) 638 printproto(tp, tp->pr_name); 639 #endif 640 #ifndef SMALL 641 if (af == AF_APPLETALK || af == AF_UNSPEC) 642 for (tp = atalkprotox; tp->pr_name; tp++) 643 printproto(tp, tp->pr_name); 644 if (af == AF_NS || af == AF_UNSPEC) 645 for (tp = nsprotox; tp->pr_name; tp++) 646 printproto(tp, tp->pr_name); 647 if (af == AF_ISO || af == AF_UNSPEC) 648 for (tp = isoprotox; tp->pr_name; tp++) 649 printproto(tp, tp->pr_name); 650 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 651 unixpr(nl[N_UNIXSW].n_value); 652 #endif 653 exit(0); 654 } 655 656 /* 657 * Print out protocol statistics or control blocks (per sflag). 658 * If the interface was not specifically requested, and the symbol 659 * is not in the namelist, ignore this one. 660 */ 661 static void 662 printproto(tp, name) 663 struct protox *tp; 664 char *name; 665 { 666 void (*pr) __P((u_long, char *)); 667 u_long off; 668 669 if (sflag) { 670 if (iflag) { 671 if (tp->pr_istats) 672 intpr(interval, nl[N_IFNET].n_value, 673 tp->pr_istats); 674 return; 675 } 676 else { 677 pr = tp->pr_stats; 678 off = nl[tp->pr_sindex].n_value; 679 } 680 } else { 681 pr = tp->pr_cblocks; 682 off = nl[tp->pr_index].n_value; 683 } 684 if (pr != NULL && (off || af != AF_UNSPEC)) 685 (*pr)(off, name); 686 } 687 688 /* 689 * Print softintrq status. 690 */ 691 void 692 print_softintrq() 693 { 694 struct ifqueue intrq, *ifq = &intrq; 695 const struct softintrq *siq; 696 u_long off; 697 698 for (siq = softintrq; siq->siq_name != NULL; siq++) { 699 off = nl[siq->siq_index].n_value; 700 if (off == 0) 701 continue; 702 703 kread(off, (char *)ifq, sizeof(*ifq)); 704 printf("%s:\n", siq->siq_name); 705 printf("\tqueue length: %d\n", ifq->ifq_len); 706 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 707 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 708 } 709 } 710 711 /* 712 * Read kernel memory, return 0 on success. 713 */ 714 int 715 kread(addr, buf, size) 716 u_long addr; 717 char *buf; 718 int size; 719 { 720 721 if (kvm_read(kvmd, addr, buf, size) != size) { 722 warnx("%s", kvm_geterr(kvmd)); 723 return (-1); 724 } 725 return (0); 726 } 727 728 char * 729 plural(n) 730 int n; 731 { 732 733 return (n != 1 ? "s" : ""); 734 } 735 736 char * 737 plurales(n) 738 int n; 739 { 740 741 return (n != 1 ? "es" : ""); 742 } 743 744 /* 745 * Find the protox for the given "well-known" name. 746 */ 747 static struct protox * 748 knownname(name) 749 char *name; 750 { 751 struct protox **tpp, *tp; 752 753 for (tpp = protoprotox; *tpp; tpp++) 754 for (tp = *tpp; tp->pr_name; tp++) 755 if (strcmp(tp->pr_name, name) == 0) 756 return (tp); 757 return (NULL); 758 } 759 760 /* 761 * Find the protox corresponding to name. 762 */ 763 static struct protox * 764 name2protox(name) 765 char *name; 766 { 767 struct protox *tp; 768 char **alias; /* alias from p->aliases */ 769 struct protoent *p; 770 771 /* 772 * Try to find the name in the list of "well-known" names. If that 773 * fails, check if name is an alias for an Internet protocol. 774 */ 775 if ((tp = knownname(name)) != NULL) 776 return (tp); 777 778 setprotoent(1); /* make protocol lookup cheaper */ 779 while ((p = getprotoent()) != NULL) { 780 /* assert: name not same as p->name */ 781 for (alias = p->p_aliases; *alias; alias++) 782 if (strcmp(name, *alias) == 0) { 783 endprotoent(); 784 return (knownname(p->p_name)); 785 } 786 } 787 endprotoent(); 788 return (NULL); 789 } 790 791 static void 792 usage() 793 { 794 const char *progname = getprogname(); 795 796 (void)fprintf(stderr, 797 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 798 (void)fprintf(stderr, 799 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 800 progname); 801 (void)fprintf(stderr, 802 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 803 (void)fprintf(stderr, 804 " %s [-p protocol] [-M core] [-N system]\n", progname); 805 (void)fprintf(stderr, 806 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 807 (void)fprintf(stderr, 808 " %s [-p protocol] [-i] [-I Interface] \n", progname); 809 (void)fprintf(stderr, 810 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 811 exit(1); 812 } 813
Indexes created Fri Sep 26 20:09:58 GMT 2025