main.c revision 1.69
1 /* $NetBSD: main.c,v 1.69 2008/04/24 03:46:25 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 1.69 2008/04/24 03:46:25 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" }, /* not available via kvm */ 73 #define N_TCBTABLE 2 74 { "_tcbtable" }, 75 #define N_TCPSTAT 3 76 { "_tcpstat" }, /* not available via kvm */ 77 #define N_UDBTABLE 4 78 { "_udbtable" }, 79 #define N_UDPSTAT 5 80 { "_udpstat" }, /* not available via kvm */ 81 #define N_IFNET 6 82 { "_ifnet" }, 83 #define N_IMP 7 84 { "_imp_softc" }, 85 #define N_ICMPSTAT 8 86 { "_icmpstat" }, /* not available via kvm */ 87 #define N_RTSTAT 9 88 { "_rtstat" }, 89 #define N_UNIXSW 10 90 { "_unixsw" }, 91 #define N_CLNPSTAT 11 92 { "_clnp_stat"}, 93 #define IN_NOTUSED 12 94 { "_tp_inpcb" }, 95 #define ISO_TP 13 96 { "_tp_refinfo" }, 97 #define N_TPSTAT 14 98 { "_tp_stat" }, 99 #define N_ESISSTAT 15 100 { "_esis_stat"}, 101 #define N_NIMP 16 102 { "_nimp"}, 103 #define N_RTREE 17 104 { "_rt_tables"}, 105 #define N_CLTP 18 106 { "_cltb"}, 107 #define N_CLTPSTAT 19 108 { "_cltpstat"}, 109 #define N_NFILE 20 110 { "_nfile" }, 111 #define N_FILE 21 112 { "_file" }, 113 #define N_IGMPSTAT 22 114 { "_igmpstat" }, /* not available via kvm */ 115 #define N_MRTPROTO 23 116 { "_ip_mrtproto" }, 117 #define N_MRTSTAT 24 118 { "_mrtstat" }, 119 #define N_MFCHASHTBL 25 120 { "_mfchashtbl" }, 121 #define N_MFCHASH 26 122 { "_mfchash" }, 123 #define N_VIFTABLE 27 124 { "_viftable" }, 125 #define N_MSIZE 28 126 { "_msize" }, 127 #define N_MCLBYTES 29 128 { "_mclbytes" }, 129 #define N_DDPSTAT 30 130 { "_ddpstat"}, /* not available via kvm */ 131 #define N_DDPCB 31 132 { "_ddpcb"}, 133 #define N_MBPOOL 32 134 { "_mbpool" }, 135 #define N_MCLPOOL 33 136 { "_mclpool" }, 137 #define N_DIVPCB 34 138 { "_divcb"}, 139 #define N_DIVSTAT 35 140 { "_divstat"}, 141 #define N_IP6STAT 36 142 { "_ip6stat" }, /* not available via kvm */ 143 #define N_TCP6STAT 37 144 { "_tcp6stat" }, /* not available via kvm */ 145 #define N_UDP6STAT 38 146 { "_udp6stat" }, /* not available via kvm */ 147 #define N_ICMP6STAT 39 148 { "_icmp6stat" }, /* not available via kvm */ 149 #define N_IPSECSTAT 40 150 { "_ipsecstat" }, /* not available via kvm */ 151 #define N_IPSEC6STAT 41 152 { "_ipsec6stat" }, /* not available via kvm */ 153 #define N_PIM6STAT 42 154 { "_pim6stat" }, /* not available via kvm */ 155 #define N_MRT6PROTO 43 156 { "_ip6_mrtproto" }, 157 #define N_MRT6STAT 44 158 { "_mrt6stat" }, 159 #define N_MF6CTABLE 45 160 { "_mf6ctable" }, 161 #define N_MIF6TABLE 46 162 { "_mif6table" }, 163 #define N_PFKEYSTAT 47 164 { "_pfkeystat" }, /* not available via kvm */ 165 #define N_ARPSTAT 48 166 { "_arpstat" }, /* not available via kvm */ 167 #define N_RIP6STAT 49 168 { "_rip6stat" }, /* not available via kvm */ 169 #define N_ARPINTRQ 50 170 { "_arpintrq" }, 171 #define N_IPINTRQ 51 172 { "_ipintrq" }, 173 #define N_IP6INTRQ 52 174 { "_ip6intrq" }, 175 #define N_ATINTRQ1 53 176 { "_atintrq1" }, 177 #define N_ATINTRQ2 54 178 { "_atintrq2" }, 179 #define N_NSINTRQ 55 180 { "_nsintrq" }, 181 #define N_CLNLINTRQ 56 182 { "_clnlintrq" }, 183 #define N_LLCINTRQ 57 184 { "_llcintrq" }, 185 #define N_HDINTRQ 58 186 { "_hdintrq" }, 187 #define N_NATMINTRQ 59 188 { "_natmintrq" }, 189 #define N_PPPOEDISCINQ 61 190 { "_ppoediscinq" }, 191 #define N_PPPOEINQ 61 192 { "_ppoeinq" }, 193 #define N_PKINTRQ 62 194 { "_pkintrq" }, 195 #define N_HARDCLOCK_TICKS 63 196 { "_hardclock_ticks" }, 197 #define N_PIMSTAT 64 198 { "_pimstat" }, 199 #define N_CARPSTAT 65 200 { "_carpstats" }, /* not available via kvm */ 201 { "" }, 202 }; 203 204 struct protox { 205 u_char pr_index; /* index into nlist of cb head */ 206 u_char pr_sindex; /* index into nlist of stat block */ 207 u_char pr_wanted; /* 1 if wanted, 0 otherwise */ 208 void (*pr_cblocks) /* control blocks printing routine */ 209 __P((u_long, char *)); 210 void (*pr_stats) /* statistics printing routine */ 211 __P((u_long, char *)); 212 void (*pr_istats) 213 __P((char *)); /* per/if statistics printing routine */ 214 void (*pr_dump) /* PCB state dump routine */ 215 __P((u_long)); 216 char *pr_name; /* well-known name */ 217 } protox[] = { 218 { N_TCBTABLE, N_TCPSTAT, 1, protopr, 219 tcp_stats, NULL, tcp_dump, "tcp" }, 220 { N_UDBTABLE, N_UDPSTAT, 1, protopr, 221 udp_stats, NULL, 0, "udp" }, 222 { -1, N_IPSTAT, 1, 0, 223 ip_stats, NULL, 0, "ip" }, 224 { -1, N_ICMPSTAT, 1, 0, 225 icmp_stats, NULL, 0, "icmp" }, 226 { -1, N_IGMPSTAT, 1, 0, 227 igmp_stats, NULL, 0, "igmp" }, 228 { -1, N_CARPSTAT, 1, 0, 229 carp_stats, NULL, 0, "carp" }, 230 #ifdef IPSEC 231 { -1, N_IPSECSTAT, 1, 0, 232 ipsec_switch, NULL, 0, "ipsec" }, 233 #endif 234 { -1, N_PIMSTAT, 1, 0, 235 pim_stats, NULL, 0, "pim" }, 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_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 248 tcp6_stats, NULL, tcp6_dump, "tcp6" }, 249 #else 250 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 251 tcp_stats, NULL, tcp_dump, "tcp6" }, 252 #endif 253 { N_UDBTABLE, N_UDP6STAT, 1, ip6protopr, 254 udp6_stats, NULL, 0, "udp6" }, 255 #ifdef IPSEC 256 { -1, N_IPSEC6STAT, 1, 0, 257 ipsec_switch, 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 isoprotox[] = { 293 { ISO_TP, N_TPSTAT, 1, iso_protopr, 294 tp_stats, NULL, 0, "tp" }, 295 { N_CLTP, N_CLTPSTAT, 1, iso_protopr, 296 cltp_stats, NULL, 0, "cltp" }, 297 { -1, N_CLNPSTAT, 1, 0, 298 clnp_stats, NULL, 0, "clnp"}, 299 { -1, N_ESISSTAT, 1, 0, 300 esis_stats, NULL, 0, "esis"}, 301 { -1, -1, 0, 0, 302 0, NULL, 0, 0 } 303 }; 304 #endif 305 306 struct protox *protoprotox[] = { protox, 307 #ifdef INET6 308 ip6protox, 309 #endif 310 arpprotox, 311 #ifdef IPSEC 312 pfkeyprotox, 313 #endif 314 #ifndef SMALL 315 atalkprotox, 316 isoprotox, 317 #endif 318 NULL }; 319 320 const struct softintrq { 321 const char *siq_name; 322 int siq_index; 323 } softintrq[] = { 324 { "arpintrq", N_ARPINTRQ }, 325 { "ipintrq", N_IPINTRQ }, 326 { "ip6intrq", N_IP6INTRQ }, 327 { "atintrq1", N_ATINTRQ1 }, 328 { "atintrq2", N_ATINTRQ2 }, 329 { "clnlintrq", N_CLNLINTRQ }, 330 { "llcintrq", N_LLCINTRQ }, 331 { "hdintrq", N_HDINTRQ }, 332 { "natmintrq", N_NATMINTRQ }, 333 { "ppoediscinq", N_PPPOEDISCINQ }, 334 { "ppoeinq", N_PPPOEINQ }, 335 { "pkintrq", N_PKINTRQ }, 336 { NULL, -1 }, 337 }; 338 339 int main __P((int, char *[])); 340 static void printproto __P((struct protox *, char *)); 341 static void print_softintrq __P((void)); 342 static void usage __P((void)); 343 static struct protox *name2protox __P((char *)); 344 static struct protox *knownname __P((char *)); 345 static void prepare(char *, char *, struct protox *tp); 346 347 kvm_t *kvmd; 348 gid_t egid; 349 350 void 351 prepare(char *nlistf, char *memf, struct protox *tp) 352 { 353 char buf[_POSIX2_LINE_MAX]; 354 355 /* 356 * Try to figure out if we can use sysctl or not. 357 */ 358 if (nlistf != NULL && memf != NULL) { 359 /* If we have -M and -N, we're not dealing with live memory. */ 360 use_sysctl = 0; 361 } else if (qflag || 362 rflag || 363 iflag || 364 #ifndef SMALL 365 gflag || 366 (pflag && tp->pr_sindex == N_TPSTAT) || 367 (pflag && tp->pr_sindex == N_CLTPSTAT) || 368 (pflag && tp->pr_sindex == N_CLNPSTAT) || 369 (pflag && tp->pr_sindex == N_ESISSTAT) || 370 #endif 371 (pflag && tp->pr_sindex == N_PIMSTAT) || 372 Pflag) { 373 /* These flags are not yet supported via sysctl(3). */ 374 use_sysctl = 0; 375 } else { 376 /* We can use sysctl(3). */ 377 use_sysctl = 1; 378 } 379 380 if (!use_sysctl) { 381 (void)setegid(egid); 382 kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf); 383 (void)setgid(getgid()); 384 if (kvmd == NULL) 385 err(1, "kvm error: %s", buf); 386 387 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 388 if (nlistf) 389 errx(1, "%s: no namelist", nlistf); 390 else 391 errx(1, "no namelist"); 392 } 393 } else 394 (void)setgid(getgid()); 395 } 396 397 int 398 main(argc, argv) 399 int argc; 400 char *argv[]; 401 { 402 struct protoent *p; 403 struct protox *tp; /* for printing cblocks & stats */ 404 int ch; 405 char *nlistf = NULL, *memf = NULL; 406 char *cp; 407 u_long pcbaddr; 408 409 egid = getegid(); 410 (void)setegid(getgid()); 411 tp = NULL; 412 af = AF_UNSPEC; 413 pcbaddr = 0; 414 415 while ((ch = getopt(argc, argv, 416 "AabBdf:ghI:LliM:mN:nP:p:qrsStuvw:")) != -1) 417 switch (ch) { 418 case 'A': 419 Aflag = 1; 420 break; 421 case 'a': 422 aflag = 1; 423 break; 424 case 'b': 425 bflag = 1; 426 break; 427 case 'B': 428 Bflag = 1; 429 break; 430 case 'd': 431 dflag = 1; 432 break; 433 case 'f': 434 if (strcmp(optarg, "inet") == 0) 435 af = AF_INET; 436 else if (strcmp(optarg, "inet6") == 0) 437 af = AF_INET6; 438 else if (strcmp(optarg, "arp") == 0) 439 af = AF_ARP; 440 else if (strcmp(optarg, "pfkey") == 0) 441 af = PF_KEY; 442 else if (strcmp(optarg, "unix") == 0 443 || strcmp(optarg, "local") == 0) 444 af = AF_LOCAL; 445 else if (strcmp(optarg, "iso") == 0) 446 af = AF_ISO; 447 else if (strcmp(optarg, "atalk") == 0) 448 af = AF_APPLETALK; 449 else 450 errx(1, "%s: unknown address family", 451 optarg); 452 break; 453 #ifndef SMALL 454 case 'g': 455 gflag = 1; 456 break; 457 #endif 458 case 'I': 459 iflag = 1; 460 interface = optarg; 461 break; 462 case 'i': 463 iflag = 1; 464 break; 465 case 'L': 466 Lflag = 1; 467 break; 468 case 'l': 469 lflag = 1; 470 break; 471 case 'M': 472 memf = optarg; 473 break; 474 case 'm': 475 mflag = 1; 476 break; 477 case 'N': 478 nlistf = optarg; 479 break; 480 case 'n': 481 numeric_addr = numeric_port = nflag = 1; 482 break; 483 case 'P': 484 errno = 0; 485 pcbaddr = strtoul(optarg, &cp, 16); 486 if (*cp != '\0' || errno == ERANGE) 487 errx(1, "invalid PCB address %s", 488 optarg); 489 Pflag = 1; 490 break; 491 case 'p': 492 if ((tp = name2protox(optarg)) == NULL) 493 errx(1, "%s: unknown or uninstrumented protocol", 494 optarg); 495 pflag = 1; 496 break; 497 case 'q': 498 qflag = 1; 499 break; 500 case 'r': 501 rflag = 1; 502 break; 503 case 's': 504 ++sflag; 505 break; 506 case 'S': 507 numeric_addr = 1; 508 break; 509 case 't': 510 tflag = 1; 511 break; 512 case 'u': 513 af = AF_LOCAL; 514 break; 515 case 'v': 516 vflag++; 517 break; 518 case 'w': 519 interval = atoi(optarg); 520 iflag = 1; 521 break; 522 case '?': 523 default: 524 usage(); 525 } 526 argv += optind; 527 argc -= optind; 528 529 #define BACKWARD_COMPATIBILITY 530 #ifdef BACKWARD_COMPATIBILITY 531 if (*argv) { 532 if (isdigit((unsigned char)**argv)) { 533 interval = atoi(*argv); 534 if (interval <= 0) 535 usage(); 536 ++argv; 537 iflag = 1; 538 } 539 if (*argv) { 540 nlistf = *argv; 541 if (*++argv) 542 memf = *argv; 543 } 544 } 545 #endif 546 547 prepare(nlistf, memf, tp); 548 549 #ifndef SMALL 550 if (Bflag) { 551 if (sflag) 552 bpf_stats(); 553 else 554 bpf_dump(interface); 555 exit(0); 556 } 557 #endif 558 559 if (mflag) { 560 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 561 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 562 nl[N_MCLPOOL].n_value); 563 exit(0); 564 } 565 if (Pflag) { 566 if (tp == NULL) { 567 /* Default to TCP. */ 568 tp = name2protox("tcp"); 569 } 570 if (tp->pr_dump) 571 (*tp->pr_dump)(pcbaddr); 572 else 573 printf("%s: no PCB dump routine\n", tp->pr_name); 574 exit(0); 575 } 576 if (pflag) { 577 if (iflag && tp->pr_istats) 578 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 579 else if (tp->pr_stats) 580 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 581 tp->pr_name); 582 else 583 printf("%s: no stats routine\n", tp->pr_name); 584 exit(0); 585 } 586 if (qflag) { 587 print_softintrq(); 588 exit(0); 589 } 590 /* 591 * Keep file descriptors open to avoid overhead 592 * of open/close on each call to get* routines. 593 */ 594 sethostent(1); 595 setnetent(1); 596 if (iflag) { 597 if (af != AF_UNSPEC) 598 goto protostat; 599 600 intpr(interval, nl[N_IFNET].n_value, NULL); 601 exit(0); 602 } 603 if (rflag) { 604 if (sflag) 605 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 606 else { 607 if (use_sysctl) 608 p_rttables(af); 609 else 610 routepr(nl[N_RTREE].n_value); 611 } 612 exit(0); 613 } 614 #ifndef SMALL 615 if (gflag) { 616 if (sflag) { 617 if (af == AF_INET || af == AF_UNSPEC) 618 mrt_stats(nl[N_MRTPROTO].n_value, 619 nl[N_MRTSTAT].n_value); 620 #ifdef INET6 621 if (af == AF_INET6 || af == AF_UNSPEC) 622 mrt6_stats(nl[N_MRT6PROTO].n_value, 623 nl[N_MRT6STAT].n_value); 624 #endif 625 } 626 else { 627 if (af == AF_INET || af == AF_UNSPEC) 628 mroutepr(nl[N_MRTPROTO].n_value, 629 nl[N_MFCHASHTBL].n_value, 630 nl[N_MFCHASH].n_value, 631 nl[N_VIFTABLE].n_value); 632 #ifdef INET6 633 if (af == AF_INET6 || af == AF_UNSPEC) 634 mroute6pr(nl[N_MRT6PROTO].n_value, 635 nl[N_MF6CTABLE].n_value, 636 nl[N_MIF6TABLE].n_value); 637 #endif 638 } 639 exit(0); 640 } 641 #endif 642 protostat: 643 if (af == AF_INET || af == AF_UNSPEC) { 644 setprotoent(1); 645 setservent(1); 646 /* ugh, this is O(MN) ... why do we do this? */ 647 while ((p = getprotoent()) != NULL) { 648 for (tp = protox; tp->pr_name; tp++) 649 if (strcmp(tp->pr_name, p->p_name) == 0) 650 break; 651 if (tp->pr_name == 0 || tp->pr_wanted == 0) 652 continue; 653 printproto(tp, p->p_name); 654 tp->pr_wanted = 0; 655 } 656 endprotoent(); 657 for (tp = protox; tp->pr_name; tp++) 658 if (tp->pr_wanted) 659 printproto(tp, tp->pr_name); 660 } 661 #ifdef INET6 662 if (af == AF_INET6 || af == AF_UNSPEC) 663 for (tp = ip6protox; tp->pr_name; tp++) 664 printproto(tp, tp->pr_name); 665 #endif 666 if (af == AF_ARP || af == AF_UNSPEC) 667 for (tp = arpprotox; tp->pr_name; tp++) 668 printproto(tp, tp->pr_name); 669 #ifdef IPSEC 670 if (af == PF_KEY || af == AF_UNSPEC) 671 for (tp = pfkeyprotox; tp->pr_name; tp++) 672 printproto(tp, tp->pr_name); 673 #endif 674 #ifndef SMALL 675 if (af == AF_APPLETALK || af == AF_UNSPEC) 676 for (tp = atalkprotox; tp->pr_name; tp++) 677 printproto(tp, tp->pr_name); 678 if (af == AF_ISO || af == AF_UNSPEC) 679 for (tp = isoprotox; tp->pr_name; tp++) 680 printproto(tp, tp->pr_name); 681 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 682 unixpr(nl[N_UNIXSW].n_value); 683 #endif 684 exit(0); 685 } 686 687 /* 688 * Print out protocol statistics or control blocks (per sflag). 689 * If the interface was not specifically requested, and the symbol 690 * is not in the namelist, ignore this one. 691 */ 692 static void 693 printproto(tp, name) 694 struct protox *tp; 695 char *name; 696 { 697 void (*pr) __P((u_long, char *)); 698 u_long off; 699 700 if (sflag) { 701 if (iflag) { 702 if (tp->pr_istats) 703 intpr(interval, nl[N_IFNET].n_value, 704 tp->pr_istats); 705 return; 706 } 707 else { 708 pr = tp->pr_stats; 709 off = nl[tp->pr_sindex].n_value; 710 } 711 } else { 712 pr = tp->pr_cblocks; 713 off = nl[tp->pr_index].n_value; 714 } 715 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 716 (*pr)(off, name); 717 } 718 } 719 720 /* 721 * Print softintrq status. 722 */ 723 void 724 print_softintrq() 725 { 726 struct ifqueue intrq, *ifq = &intrq; 727 const struct softintrq *siq; 728 u_long off; 729 730 for (siq = softintrq; siq->siq_name != NULL; siq++) { 731 off = nl[siq->siq_index].n_value; 732 if (off == 0) 733 continue; 734 735 kread(off, (char *)ifq, sizeof(*ifq)); 736 printf("%s:\n", siq->siq_name); 737 printf("\tqueue length: %d\n", ifq->ifq_len); 738 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 739 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 740 } 741 } 742 743 /* 744 * Read kernel memory, return 0 on success. 745 */ 746 int 747 kread(addr, buf, size) 748 u_long addr; 749 char *buf; 750 int size; 751 { 752 753 if (kvm_read(kvmd, addr, buf, size) != size) { 754 warnx("%s", kvm_geterr(kvmd)); 755 return (-1); 756 } 757 return (0); 758 } 759 760 char * 761 plural(n) 762 int n; 763 { 764 765 return (n != 1 ? "s" : ""); 766 } 767 768 char * 769 plurales(n) 770 int n; 771 { 772 773 return (n != 1 ? "es" : ""); 774 } 775 776 int 777 get_hardticks(void) 778 { 779 int hardticks; 780 781 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 782 sizeof(hardticks)); 783 return (hardticks); 784 } 785 786 /* 787 * Find the protox for the given "well-known" name. 788 */ 789 static struct protox * 790 knownname(name) 791 char *name; 792 { 793 struct protox **tpp, *tp; 794 795 for (tpp = protoprotox; *tpp; tpp++) 796 for (tp = *tpp; tp->pr_name; tp++) 797 if (strcmp(tp->pr_name, name) == 0) 798 return (tp); 799 return (NULL); 800 } 801 802 /* 803 * Find the protox corresponding to name. 804 */ 805 static struct protox * 806 name2protox(name) 807 char *name; 808 { 809 struct protox *tp; 810 char **alias; /* alias from p->aliases */ 811 struct protoent *p; 812 813 /* 814 * Try to find the name in the list of "well-known" names. If that 815 * fails, check if name is an alias for an Internet protocol. 816 */ 817 if ((tp = knownname(name)) != NULL) 818 return (tp); 819 820 setprotoent(1); /* make protocol lookup cheaper */ 821 while ((p = getprotoent()) != NULL) { 822 /* assert: name not same as p->name */ 823 for (alias = p->p_aliases; *alias; alias++) 824 if (strcmp(name, *alias) == 0) { 825 endprotoent(); 826 return (knownname(p->p_name)); 827 } 828 } 829 endprotoent(); 830 return (NULL); 831 } 832 833 static void 834 usage() 835 { 836 const char *progname = getprogname(); 837 838 (void)fprintf(stderr, 839 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 840 (void)fprintf(stderr, 841 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 842 progname); 843 (void)fprintf(stderr, 844 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 845 (void)fprintf(stderr, 846 " %s [-p protocol] [-M core] [-N system]\n", progname); 847 (void)fprintf(stderr, 848 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 849 (void)fprintf(stderr, 850 " %s [-p protocol] [-i] [-I Interface] \n", progname); 851 (void)fprintf(stderr, 852 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 853 (void)fprintf(stderr, 854 " %s [-s] [-B] [-I interface]\n", progname); 855 exit(1); 856 } 857
Indexes created Thu Sep 25 16:09:42 GMT 2025