main.c revision 1.75
1 /* $NetBSD: main.c,v 1.75 2010/06/27 06:52:37 kefren 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\ 35 Regents of the University of California. All rights reserved."); 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 1.75 2010/06/27 06:52:37 kefren 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", 0, 0, 0, 0 }, 71 #define N_IPSTAT 1 72 { "_ipstat", 0, 0, 0, 0 }, /* not available via kvm */ 73 #define N_TCBTABLE 2 74 { "_tcbtable", 0, 0, 0, 0 }, 75 #define N_TCPSTAT 3 76 { "_tcpstat", 0, 0, 0, 0 }, /* not available via kvm */ 77 #define N_UDBTABLE 4 78 { "_udbtable", 0, 0, 0, 0 }, 79 #define N_UDPSTAT 5 80 { "_udpstat", 0, 0, 0, 0 }, /* not available via kvm */ 81 #define N_IFNET 6 82 { "_ifnet", 0, 0, 0, 0 }, 83 #define N_IMP 7 84 { "_imp_softc", 0, 0, 0, 0 }, 85 #define N_ICMPSTAT 8 86 { "_icmpstat", 0, 0, 0, 0 }, /* not available via kvm */ 87 #define N_RTSTAT 9 88 { "_rtstat", 0, 0, 0, 0 }, 89 #define N_UNIXSW 10 90 { "_unixsw", 0, 0, 0, 0 }, 91 #define N_CLNPSTAT 11 92 { "_clnp_stat", 0, 0, 0, 0 }, 93 #define IN_NOTUSED 12 94 { "_tp_inpcb", 0, 0, 0, 0 }, 95 #define ISO_TP 13 96 { "_tp_refinfo", 0, 0, 0, 0 }, 97 #define N_TPSTAT 14 98 { "_tp_stat", 0, 0, 0, 0 }, 99 #define N_ESISSTAT 15 100 { "_esis_stat", 0, 0, 0, 0 }, 101 #define N_NIMP 16 102 { "_nimp", 0, 0, 0, 0 }, 103 #define N_RTREE 17 104 { "_rt_tables", 0, 0, 0, 0 }, 105 #define N_CLTP 18 106 { "_cltb", 0, 0, 0, 0 }, 107 #define N_CLTPSTAT 19 108 { "_cltpstat", 0, 0, 0, 0 }, 109 #define N_NFILE 20 110 { "_nfile", 0, 0, 0, 0 }, 111 #define N_FILE 21 112 { "_file", 0, 0, 0, 0 }, 113 #define N_IGMPSTAT 22 114 { "_igmpstat", 0, 0, 0, 0 }, /* not available via kvm */ 115 #define N_MRTPROTO 23 116 { "_ip_mrtproto", 0, 0, 0, 0 }, 117 #define N_MRTSTAT 24 118 { "_mrtstat", 0, 0, 0, 0 }, 119 #define N_MFCHASHTBL 25 120 { "_mfchashtbl", 0, 0, 0, 0 }, 121 #define N_MFCHASH 26 122 { "_mfchash", 0, 0, 0, 0 }, 123 #define N_VIFTABLE 27 124 { "_viftable", 0, 0, 0, 0 }, 125 #define N_MSIZE 28 126 { "_msize", 0, 0, 0, 0 }, 127 #define N_MCLBYTES 29 128 { "_mclbytes", 0, 0, 0, 0 }, 129 #define N_DDPSTAT 30 130 { "_ddpstat", 0, 0, 0, 0 }, /* not available via kvm */ 131 #define N_DDPCB 31 132 { "_ddpcb", 0, 0, 0, 0 }, 133 #define N_MBPOOL 32 134 { "_mbpool", 0, 0, 0, 0 }, 135 #define N_MCLPOOL 33 136 { "_mclpool", 0, 0, 0, 0 }, 137 #define N_DIVPCB 34 138 { "_divcb", 0, 0, 0, 0 }, 139 #define N_DIVSTAT 35 140 { "_divstat", 0, 0, 0, 0 }, 141 #define N_IP6STAT 36 142 { "_ip6stat", 0, 0, 0, 0 }, /* not available via kvm */ 143 #define N_TCP6STAT 37 144 { "_tcp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 145 #define N_UDP6STAT 38 146 { "_udp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 147 #define N_ICMP6STAT 39 148 { "_icmp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 149 #define N_IPSECSTAT 40 150 { "_ipsecstat", 0, 0, 0, 0 }, /* not available via kvm */ 151 #define N_IPSEC6STAT 41 152 { "_ipsec6stat", 0, 0, 0, 0 }, /* not available via kvm */ 153 #define N_PIM6STAT 42 154 { "_pim6stat", 0, 0, 0, 0 }, /* not available via kvm */ 155 #define N_MRT6PROTO 43 156 { "_ip6_mrtproto", 0, 0, 0, 0 }, 157 #define N_MRT6STAT 44 158 { "_mrt6stat", 0, 0, 0, 0 }, 159 #define N_MF6CTABLE 45 160 { "_mf6ctable", 0, 0, 0, 0 }, 161 #define N_MIF6TABLE 46 162 { "_mif6table", 0, 0, 0, 0 }, 163 #define N_PFKEYSTAT 47 164 { "_pfkeystat", 0, 0, 0, 0 }, /* not available via kvm */ 165 #define N_ARPSTAT 48 166 { "_arpstat", 0, 0, 0, 0 }, /* not available via kvm */ 167 #define N_RIP6STAT 49 168 { "_rip6stat", 0, 0, 0, 0 }, /* not available via kvm */ 169 #define N_ARPINTRQ 50 170 { "_arpintrq", 0, 0, 0, 0 }, 171 #define N_IPINTRQ 51 172 { "_ipintrq", 0, 0, 0, 0 }, 173 #define N_IP6INTRQ 52 174 { "_ip6intrq", 0, 0, 0, 0 }, 175 #define N_ATINTRQ1 53 176 { "_atintrq1", 0, 0, 0, 0 }, 177 #define N_ATINTRQ2 54 178 { "_atintrq2", 0, 0, 0, 0 }, 179 #define N_NSINTRQ 55 180 { "_nsintrq", 0, 0, 0, 0 }, 181 #define N_CLNLINTRQ 56 182 { "_clnlintrq", 0, 0, 0, 0 }, 183 #define N_LLCINTRQ 57 184 { "_llcintrq", 0, 0, 0, 0 }, 185 #define N_HDINTRQ 58 186 { "_hdintrq", 0, 0, 0, 0 }, 187 #define N_NATMINTRQ 59 188 { "_natmintrq", 0, 0, 0, 0 }, 189 #define N_PPPOEDISCINQ 61 190 { "_ppoediscinq", 0, 0, 0, 0 }, 191 #define N_PPPOEINQ 61 192 { "_ppoeinq", 0, 0, 0, 0 }, 193 #define N_PKINTRQ 62 194 { "_pkintrq", 0, 0, 0, 0 }, 195 #define N_HARDCLOCK_TICKS 63 196 { "_hardclock_ticks", 0, 0, 0, 0 }, 197 #define N_PIMSTAT 64 198 { "_pimstat", 0, 0, 0, 0 }, 199 #define N_CARPSTAT 65 200 { "_carpstats", 0, 0, 0, 0 }, /* not available via kvm */ 201 #define N_PFSYNCSTAT 66 202 { "_pfsyncstats", 0, 0, 0, 0}, /* not available via kvm */ 203 { "", 0, 0, 0, 0 }, 204 }; 205 206 struct protox { 207 u_char pr_index; /* index into nlist of cb head */ 208 u_char pr_sindex; /* index into nlist of stat block */ 209 u_char pr_wanted; /* 1 if wanted, 0 otherwise */ 210 void (*pr_cblocks) /* control blocks printing routine */ 211 __P((u_long, const char *)); 212 void (*pr_stats) /* statistics printing routine */ 213 __P((u_long, const char *)); 214 void (*pr_istats) 215 __P((const char *)); /* per/if statistics printing routine */ 216 void (*pr_dump) /* PCB state dump routine */ 217 __P((u_long)); 218 const char *pr_name; /* well-known name */ 219 } protox[] = { 220 { N_TCBTABLE, N_TCPSTAT, 1, protopr, 221 tcp_stats, NULL, tcp_dump, "tcp" }, 222 { N_UDBTABLE, N_UDPSTAT, 1, protopr, 223 udp_stats, NULL, 0, "udp" }, 224 { -1, N_IPSTAT, 1, 0, 225 ip_stats, NULL, 0, "ip" }, 226 { -1, N_ICMPSTAT, 1, 0, 227 icmp_stats, NULL, 0, "icmp" }, 228 { -1, N_IGMPSTAT, 1, 0, 229 igmp_stats, NULL, 0, "igmp" }, 230 { -1, N_CARPSTAT, 1, 0, 231 carp_stats, NULL, 0, "carp" }, 232 #ifdef IPSEC 233 { -1, N_IPSECSTAT, 1, 0, 234 ipsec_switch, NULL, 0, "ipsec" }, 235 #endif 236 { -1, N_PIMSTAT, 1, 0, 237 pim_stats, NULL, 0, "pim" }, 238 { -1, N_PFSYNCSTAT, 1, 0, 239 pfsync_stats, NULL, 0, "pfsync" }, 240 { -1, -1, 0, 0, 241 0, NULL, 0, 0 } 242 }; 243 244 #ifdef INET6 245 struct protox ip6protox[] = { 246 { -1, N_IP6STAT, 1, 0, 247 ip6_stats, ip6_ifstats, 0, "ip6" }, 248 { -1, N_ICMP6STAT, 1, 0, 249 icmp6_stats, icmp6_ifstats, 0, "icmp6" }, 250 #ifdef TCP6 251 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 252 tcp6_stats, NULL, tcp6_dump, "tcp6" }, 253 #else 254 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 255 tcp_stats, NULL, tcp_dump, "tcp6" }, 256 #endif 257 { N_UDBTABLE, N_UDP6STAT, 1, ip6protopr, 258 udp6_stats, NULL, 0, "udp6" }, 259 #ifdef IPSEC 260 { -1, N_IPSEC6STAT, 1, 0, 261 ipsec_switch, NULL, 0, "ipsec6" }, 262 #endif 263 { -1, N_PIM6STAT, 1, 0, 264 pim6_stats, NULL, 0, "pim6" }, 265 { -1, N_RIP6STAT, 1, 0, 266 rip6_stats, NULL, 0, "rip6" }, 267 { -1, -1, 0, 0, 268 0, NULL, 0, 0 } 269 }; 270 #endif 271 272 struct protox arpprotox[] = { 273 { -1, N_ARPSTAT, 1, 0, 274 arp_stats, NULL, 0, "arp" }, 275 { -1, -1, 0, 0, 276 0, NULL, 0, 0 } 277 }; 278 279 #ifdef IPSEC 280 struct protox pfkeyprotox[] = { 281 { -1, N_PFKEYSTAT, 1, 0, 282 pfkey_stats, NULL, 0, "pfkey" }, 283 { -1, -1, 0, 0, 284 0, NULL, 0, 0 } 285 }; 286 #endif 287 288 #ifndef SMALL 289 struct protox atalkprotox[] = { 290 { N_DDPCB, N_DDPSTAT, 1, atalkprotopr, 291 ddp_stats, NULL, 0, "ddp" }, 292 { -1, -1, 0, 0, 293 0, NULL, 0, NULL } 294 }; 295 296 struct protox isoprotox[] = { 297 { ISO_TP, N_TPSTAT, 1, iso_protopr, 298 tp_stats, NULL, 0, "tp" }, 299 { N_CLTP, N_CLTPSTAT, 1, iso_protopr, 300 cltp_stats, NULL, 0, "cltp" }, 301 { -1, N_CLNPSTAT, 1, 0, 302 clnp_stats, NULL, 0, "clnp"}, 303 { -1, N_ESISSTAT, 1, 0, 304 esis_stats, NULL, 0, "esis"}, 305 { -1, -1, 0, 0, 306 0, NULL, 0, 0 } 307 }; 308 #endif 309 310 struct protox *protoprotox[] = { protox, 311 #ifdef INET6 312 ip6protox, 313 #endif 314 arpprotox, 315 #ifdef IPSEC 316 pfkeyprotox, 317 #endif 318 #ifndef SMALL 319 atalkprotox, 320 isoprotox, 321 #endif 322 NULL }; 323 324 const struct softintrq { 325 const char *siq_name; 326 int siq_index; 327 } softintrq[] = { 328 { "arpintrq", N_ARPINTRQ }, 329 { "ipintrq", N_IPINTRQ }, 330 { "ip6intrq", N_IP6INTRQ }, 331 { "atintrq1", N_ATINTRQ1 }, 332 { "atintrq2", N_ATINTRQ2 }, 333 { "clnlintrq", N_CLNLINTRQ }, 334 { "llcintrq", N_LLCINTRQ }, 335 { "hdintrq", N_HDINTRQ }, 336 { "natmintrq", N_NATMINTRQ }, 337 { "ppoediscinq", N_PPPOEDISCINQ }, 338 { "ppoeinq", N_PPPOEINQ }, 339 { "pkintrq", N_PKINTRQ }, 340 { NULL, -1 }, 341 }; 342 343 int main __P((int, char *[])); 344 static void printproto __P((struct protox *, const char *)); 345 static void print_softintrq __P((void)); 346 static void usage __P((void)); 347 static struct protox *name2protox __P((const char *)); 348 static struct protox *knownname __P((const char *)); 349 static void prepare(char *, char *, struct protox *tp); 350 351 kvm_t *kvmd; 352 gid_t egid; 353 int interval; /* repeat interval for i/f stats */ 354 355 void 356 prepare(char *nlistf, char *memf, struct protox *tp) 357 { 358 char buf[_POSIX2_LINE_MAX]; 359 360 /* 361 * Try to figure out if we can use sysctl or not. 362 */ 363 if (nlistf != NULL && memf != NULL) { 364 /* Of course, we can't use sysctl with dumps. */ 365 if (force_sysctl) 366 errx(EXIT_FAILURE, "can't use sysctl with dumps"); 367 368 /* If we have -M and -N, we're not dealing with live memory. */ 369 use_sysctl = 0; 370 } else if (qflag || 371 rflag || 372 iflag || 373 #ifndef SMALL 374 gflag || 375 (pflag && tp->pr_sindex == N_TPSTAT) || 376 (pflag && tp->pr_sindex == N_CLTPSTAT) || 377 (pflag && tp->pr_sindex == N_CLNPSTAT) || 378 (pflag && tp->pr_sindex == N_ESISSTAT) || 379 #endif 380 (pflag && tp->pr_sindex == N_PIMSTAT) || 381 Pflag) { 382 /* These flags are not yet supported via sysctl(3). */ 383 use_sysctl = 0; 384 } else { 385 /* We can use sysctl(3). */ 386 use_sysctl = 1; 387 } 388 389 if (force_sysctl && !use_sysctl) { 390 /* Let the user know what's about to happen. */ 391 warnx("forcing sysctl usage even though it might not be "\ 392 "supported"); 393 use_sysctl = 1; 394 } 395 396 if (!use_sysctl) { 397 (void)setegid(egid); 398 kvmd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf); 399 (void)setgid(getgid()); 400 if (kvmd == NULL) 401 err(1, "kvm error: %s", buf); 402 403 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 404 if (nlistf) 405 errx(1, "%s: no namelist", nlistf); 406 else 407 errx(1, "no namelist"); 408 } 409 } else 410 (void)setgid(getgid()); 411 } 412 413 int 414 main(argc, argv) 415 int argc; 416 char *argv[]; 417 { 418 struct protoent *p; 419 struct protox *tp; /* for printing cblocks & stats */ 420 int ch; 421 char *nlistf = NULL, *memf = NULL; 422 char *cp; 423 u_long pcbaddr; 424 425 egid = getegid(); 426 (void)setegid(getgid()); 427 tp = NULL; 428 af = AF_UNSPEC; 429 pcbaddr = 0; 430 431 while ((ch = getopt(argc, argv, 432 "AabBdf:ghI:LliM:mN:nP:p:qrsStTuvw:X")) != -1) 433 switch (ch) { 434 case 'A': 435 Aflag = 1; 436 break; 437 case 'a': 438 aflag = 1; 439 break; 440 case 'b': 441 bflag = 1; 442 break; 443 case 'B': 444 Bflag = 1; 445 break; 446 case 'd': 447 dflag = 1; 448 break; 449 case 'f': 450 if (strcmp(optarg, "inet") == 0) 451 af = AF_INET; 452 else if (strcmp(optarg, "inet6") == 0) 453 af = AF_INET6; 454 else if (strcmp(optarg, "arp") == 0) 455 af = AF_ARP; 456 else if (strcmp(optarg, "pfkey") == 0) 457 af = PF_KEY; 458 else if (strcmp(optarg, "unix") == 0 459 || strcmp(optarg, "local") == 0) 460 af = AF_LOCAL; 461 else if (strcmp(optarg, "iso") == 0) 462 af = AF_ISO; 463 else if (strcmp(optarg, "atalk") == 0) 464 af = AF_APPLETALK; 465 else 466 errx(1, "%s: unknown address family", 467 optarg); 468 break; 469 #ifndef SMALL 470 case 'g': 471 gflag = 1; 472 break; 473 #endif 474 case 'h': 475 hflag = 1; 476 break; 477 case 'I': 478 iflag = 1; 479 interface = optarg; 480 break; 481 case 'i': 482 iflag = 1; 483 break; 484 case 'L': 485 Lflag = 1; 486 break; 487 case 'l': 488 lflag = 1; 489 break; 490 case 'M': 491 memf = optarg; 492 break; 493 case 'm': 494 mflag = 1; 495 break; 496 case 'N': 497 nlistf = optarg; 498 break; 499 case 'n': 500 numeric_addr = numeric_port = nflag = 1; 501 break; 502 case 'P': 503 errno = 0; 504 pcbaddr = strtoul(optarg, &cp, 16); 505 if (*cp != '\0' || errno == ERANGE) 506 errx(1, "invalid PCB address %s", 507 optarg); 508 Pflag = 1; 509 break; 510 case 'p': 511 if ((tp = name2protox(optarg)) == NULL) 512 errx(1, "%s: unknown or uninstrumented protocol", 513 optarg); 514 pflag = 1; 515 break; 516 case 'q': 517 qflag = 1; 518 break; 519 case 'r': 520 rflag = 1; 521 break; 522 case 's': 523 ++sflag; 524 break; 525 case 'S': 526 numeric_addr = 1; 527 break; 528 case 't': 529 tflag = 1; 530 break; 531 case 'T': 532 tagflag = 1; 533 break; 534 case 'u': 535 af = AF_LOCAL; 536 break; 537 case 'v': 538 vflag++; 539 break; 540 case 'w': 541 interval = atoi(optarg); 542 iflag = 1; 543 break; 544 case 'X': 545 force_sysctl = 1; 546 break; 547 case '?': 548 default: 549 usage(); 550 } 551 argv += optind; 552 argc -= optind; 553 554 #define BACKWARD_COMPATIBILITY 555 #ifdef BACKWARD_COMPATIBILITY 556 if (*argv) { 557 if (isdigit((unsigned char)**argv)) { 558 interval = atoi(*argv); 559 if (interval <= 0) 560 usage(); 561 ++argv; 562 iflag = 1; 563 } 564 if (*argv) { 565 nlistf = *argv; 566 if (*++argv) 567 memf = *argv; 568 } 569 } 570 #endif 571 572 prepare(nlistf, memf, tp); 573 574 #ifndef SMALL 575 if (Bflag) { 576 if (sflag) 577 bpf_stats(); 578 else 579 bpf_dump(interface); 580 exit(0); 581 } 582 #endif 583 584 if (mflag) { 585 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 586 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 587 nl[N_MCLPOOL].n_value); 588 exit(0); 589 } 590 if (Pflag) { 591 if (tp == NULL) { 592 /* Default to TCP. */ 593 tp = name2protox("tcp"); 594 } 595 if (tp->pr_dump) 596 (*tp->pr_dump)(pcbaddr); 597 else 598 printf("%s: no PCB dump routine\n", tp->pr_name); 599 exit(0); 600 } 601 if (pflag) { 602 if (iflag && tp->pr_istats) 603 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 604 else if (tp->pr_stats) 605 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 606 tp->pr_name); 607 else 608 printf("%s: no stats routine\n", tp->pr_name); 609 exit(0); 610 } 611 if (qflag) { 612 print_softintrq(); 613 exit(0); 614 } 615 /* 616 * Keep file descriptors open to avoid overhead 617 * of open/close on each call to get* routines. 618 */ 619 sethostent(1); 620 setnetent(1); 621 if (iflag) { 622 if (af != AF_UNSPEC) 623 goto protostat; 624 625 intpr(interval, nl[N_IFNET].n_value, NULL); 626 exit(0); 627 } 628 if (rflag) { 629 if (sflag) 630 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 631 else { 632 if (use_sysctl) 633 p_rttables(af); 634 else 635 routepr(nl[N_RTREE].n_value); 636 } 637 exit(0); 638 } 639 #ifndef SMALL 640 if (gflag) { 641 if (sflag) { 642 if (af == AF_INET || af == AF_UNSPEC) 643 mrt_stats(nl[N_MRTPROTO].n_value, 644 nl[N_MRTSTAT].n_value); 645 #ifdef INET6 646 if (af == AF_INET6 || af == AF_UNSPEC) 647 mrt6_stats(nl[N_MRT6PROTO].n_value, 648 nl[N_MRT6STAT].n_value); 649 #endif 650 } 651 else { 652 if (af == AF_INET || af == AF_UNSPEC) 653 mroutepr(nl[N_MRTPROTO].n_value, 654 nl[N_MFCHASHTBL].n_value, 655 nl[N_MFCHASH].n_value, 656 nl[N_VIFTABLE].n_value); 657 #ifdef INET6 658 if (af == AF_INET6 || af == AF_UNSPEC) 659 mroute6pr(nl[N_MRT6PROTO].n_value, 660 nl[N_MF6CTABLE].n_value, 661 nl[N_MIF6TABLE].n_value); 662 #endif 663 } 664 exit(0); 665 } 666 #endif 667 protostat: 668 if (af == AF_INET || af == AF_UNSPEC) { 669 setprotoent(1); 670 setservent(1); 671 /* ugh, this is O(MN) ... why do we do this? */ 672 while ((p = getprotoent()) != NULL) { 673 for (tp = protox; tp->pr_name; tp++) 674 if (strcmp(tp->pr_name, p->p_name) == 0) 675 break; 676 if (tp->pr_name == 0 || tp->pr_wanted == 0) 677 continue; 678 printproto(tp, p->p_name); 679 tp->pr_wanted = 0; 680 } 681 endprotoent(); 682 for (tp = protox; tp->pr_name; tp++) 683 if (tp->pr_wanted) 684 printproto(tp, tp->pr_name); 685 } 686 #ifdef INET6 687 if (af == AF_INET6 || af == AF_UNSPEC) 688 for (tp = ip6protox; tp->pr_name; tp++) 689 printproto(tp, tp->pr_name); 690 #endif 691 if (af == AF_ARP || af == AF_UNSPEC) 692 for (tp = arpprotox; tp->pr_name; tp++) 693 printproto(tp, tp->pr_name); 694 #ifdef IPSEC 695 if (af == PF_KEY || af == AF_UNSPEC) 696 for (tp = pfkeyprotox; tp->pr_name; tp++) 697 printproto(tp, tp->pr_name); 698 #endif 699 #ifndef SMALL 700 if (af == AF_APPLETALK || af == AF_UNSPEC) 701 for (tp = atalkprotox; tp->pr_name; tp++) 702 printproto(tp, tp->pr_name); 703 if (af == AF_ISO || af == AF_UNSPEC) 704 for (tp = isoprotox; tp->pr_name; tp++) 705 printproto(tp, tp->pr_name); 706 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 707 unixpr(nl[N_UNIXSW].n_value); 708 #endif 709 exit(0); 710 } 711 712 /* 713 * Print out protocol statistics or control blocks (per sflag). 714 * If the interface was not specifically requested, and the symbol 715 * is not in the namelist, ignore this one. 716 */ 717 static void 718 printproto(tp, name) 719 struct protox *tp; 720 const char *name; 721 { 722 void (*pr) __P((u_long, const char *)); 723 u_long off; 724 725 if (sflag) { 726 if (iflag) { 727 if (tp->pr_istats) 728 intpr(interval, nl[N_IFNET].n_value, 729 tp->pr_istats); 730 return; 731 } 732 else { 733 pr = tp->pr_stats; 734 off = nl[tp->pr_sindex].n_value; 735 } 736 } else { 737 pr = tp->pr_cblocks; 738 off = nl[tp->pr_index].n_value; 739 } 740 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 741 (*pr)(off, name); 742 } 743 } 744 745 /* 746 * Print softintrq status. 747 */ 748 void 749 print_softintrq() 750 { 751 struct ifqueue intrq, *ifq = &intrq; 752 const struct softintrq *siq; 753 u_long off; 754 755 for (siq = softintrq; siq->siq_name != NULL; siq++) { 756 off = nl[siq->siq_index].n_value; 757 if (off == 0) 758 continue; 759 760 kread(off, (char *)ifq, sizeof(*ifq)); 761 printf("%s:\n", siq->siq_name); 762 printf("\tqueue length: %d\n", ifq->ifq_len); 763 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 764 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 765 } 766 } 767 768 /* 769 * Read kernel memory, return 0 on success. 770 */ 771 int 772 kread(addr, buf, size) 773 u_long addr; 774 char *buf; 775 int size; 776 { 777 778 if (kvm_read(kvmd, addr, buf, size) != size) { 779 warnx("%s", kvm_geterr(kvmd)); 780 return (-1); 781 } 782 return (0); 783 } 784 785 const char * 786 plural(n) 787 int n; 788 { 789 790 return (n != 1 ? "s" : ""); 791 } 792 793 const char * 794 plurales(n) 795 int n; 796 { 797 798 return (n != 1 ? "es" : ""); 799 } 800 801 int 802 get_hardticks(void) 803 { 804 int hardticks; 805 806 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 807 sizeof(hardticks)); 808 return (hardticks); 809 } 810 811 /* 812 * Find the protox for the given "well-known" name. 813 */ 814 static struct protox * 815 knownname(name) 816 const char *name; 817 { 818 struct protox **tpp, *tp; 819 820 for (tpp = protoprotox; *tpp; tpp++) 821 for (tp = *tpp; tp->pr_name; tp++) 822 if (strcmp(tp->pr_name, name) == 0) 823 return (tp); 824 return (NULL); 825 } 826 827 /* 828 * Find the protox corresponding to name. 829 */ 830 static struct protox * 831 name2protox(name) 832 const char *name; 833 { 834 struct protox *tp; 835 char **alias; /* alias from p->aliases */ 836 struct protoent *p; 837 838 /* 839 * Try to find the name in the list of "well-known" names. If that 840 * fails, check if name is an alias for an Internet protocol. 841 */ 842 if ((tp = knownname(name)) != NULL) 843 return (tp); 844 845 setprotoent(1); /* make protocol lookup cheaper */ 846 while ((p = getprotoent()) != NULL) { 847 /* assert: name not same as p->name */ 848 for (alias = p->p_aliases; *alias; alias++) 849 if (strcmp(name, *alias) == 0) { 850 endprotoent(); 851 return (knownname(p->p_name)); 852 } 853 } 854 endprotoent(); 855 return (NULL); 856 } 857 858 static void 859 usage() 860 { 861 const char *progname = getprogname(); 862 863 (void)fprintf(stderr, 864 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 865 (void)fprintf(stderr, 866 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 867 progname); 868 (void)fprintf(stderr, 869 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 870 (void)fprintf(stderr, 871 " %s [-p protocol] [-M core] [-N system]\n", progname); 872 (void)fprintf(stderr, 873 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 874 (void)fprintf(stderr, 875 " %s [-p protocol] [-i] [-I Interface] \n", progname); 876 (void)fprintf(stderr, 877 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 878 (void)fprintf(stderr, 879 " %s [-s] [-B] [-I interface]\n", progname); 880 exit(1); 881 } 882
Indexes created Thu Sep 25 16:09:42 GMT 2025