main.c revision 1.81
1 /* $NetBSD: main.c,v 1.81 2011/09/16 15:39:27 joerg 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 1.81 2011/09/16 15:39:27 joerg 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 #include "prog_ops.h" 68 69 struct nlist nl[] = { 70 #define N_MBSTAT 0 71 { "_mbstat", 0, 0, 0, 0 }, 72 #define N_IPSTAT 1 73 { "_ipstat", 0, 0, 0, 0 }, /* not available via kvm */ 74 #define N_TCBTABLE 2 75 { "_tcbtable", 0, 0, 0, 0 }, 76 #define N_TCPSTAT 3 77 { "_tcpstat", 0, 0, 0, 0 }, /* not available via kvm */ 78 #define N_UDBTABLE 4 79 { "_udbtable", 0, 0, 0, 0 }, 80 #define N_UDPSTAT 5 81 { "_udpstat", 0, 0, 0, 0 }, /* not available via kvm */ 82 #define N_IFNET 6 83 { "_ifnet", 0, 0, 0, 0 }, 84 #define N_IMP 7 85 { "_imp_softc", 0, 0, 0, 0 }, 86 #define N_ICMPSTAT 8 87 { "_icmpstat", 0, 0, 0, 0 }, /* not available via kvm */ 88 #define N_RTSTAT 9 89 { "_rtstat", 0, 0, 0, 0 }, 90 #define N_UNIXSW 10 91 { "_unixsw", 0, 0, 0, 0 }, 92 #define N_CLNPSTAT 11 93 { "_clnp_stat", 0, 0, 0, 0 }, 94 #define IN_NOTUSED 12 95 { "_tp_inpcb", 0, 0, 0, 0 }, 96 #define ISO_TP 13 97 { "_tp_refinfo", 0, 0, 0, 0 }, 98 #define N_TPSTAT 14 99 { "_tp_stat", 0, 0, 0, 0 }, 100 #define N_ESISSTAT 15 101 { "_esis_stat", 0, 0, 0, 0 }, 102 #define N_NIMP 16 103 { "_nimp", 0, 0, 0, 0 }, 104 #define N_RTREE 17 105 { "_rt_tables", 0, 0, 0, 0 }, 106 #define N_CLTP 18 107 { "_cltb", 0, 0, 0, 0 }, 108 #define N_CLTPSTAT 19 109 { "_cltpstat", 0, 0, 0, 0 }, 110 #define N_NFILE 20 111 { "_nfile", 0, 0, 0, 0 }, 112 #define N_FILE 21 113 { "_file", 0, 0, 0, 0 }, 114 #define N_IGMPSTAT 22 115 { "_igmpstat", 0, 0, 0, 0 }, /* not available via kvm */ 116 #define N_MRTPROTO 23 117 { "_ip_mrtproto", 0, 0, 0, 0 }, 118 #define N_MRTSTAT 24 119 { "_mrtstat", 0, 0, 0, 0 }, 120 #define N_MFCHASHTBL 25 121 { "_mfchashtbl", 0, 0, 0, 0 }, 122 #define N_MFCHASH 26 123 { "_mfchash", 0, 0, 0, 0 }, 124 #define N_VIFTABLE 27 125 { "_viftable", 0, 0, 0, 0 }, 126 #define N_MSIZE 28 127 { "_msize", 0, 0, 0, 0 }, 128 #define N_MCLBYTES 29 129 { "_mclbytes", 0, 0, 0, 0 }, 130 #define N_DDPSTAT 30 131 { "_ddpstat", 0, 0, 0, 0 }, /* not available via kvm */ 132 #define N_DDPCB 31 133 { "_ddpcb", 0, 0, 0, 0 }, 134 #define N_MBPOOL 32 135 { "_mbpool", 0, 0, 0, 0 }, 136 #define N_MCLPOOL 33 137 { "_mclpool", 0, 0, 0, 0 }, 138 #define N_DIVPCB 34 139 { "_divcb", 0, 0, 0, 0 }, 140 #define N_DIVSTAT 35 141 { "_divstat", 0, 0, 0, 0 }, 142 #define N_IP6STAT 36 143 { "_ip6stat", 0, 0, 0, 0 }, /* not available via kvm */ 144 #define N_TCP6STAT 37 145 { "_tcp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 146 #define N_UDP6STAT 38 147 { "_udp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 148 #define N_ICMP6STAT 39 149 { "_icmp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 150 #define N_IPSECSTAT 40 151 { "_ipsecstat", 0, 0, 0, 0 }, /* not available via kvm */ 152 #define N_IPSEC6STAT 41 153 { "_ipsec6stat", 0, 0, 0, 0 }, /* not available via kvm */ 154 #define N_PIM6STAT 42 155 { "_pim6stat", 0, 0, 0, 0 }, /* not available via kvm */ 156 #define N_MRT6PROTO 43 157 { "_ip6_mrtproto", 0, 0, 0, 0 }, 158 #define N_MRT6STAT 44 159 { "_mrt6stat", 0, 0, 0, 0 }, 160 #define N_MF6CTABLE 45 161 { "_mf6ctable", 0, 0, 0, 0 }, 162 #define N_MIF6TABLE 46 163 { "_mif6table", 0, 0, 0, 0 }, 164 #define N_PFKEYSTAT 47 165 { "_pfkeystat", 0, 0, 0, 0 }, /* not available via kvm */ 166 #define N_ARPSTAT 48 167 { "_arpstat", 0, 0, 0, 0 }, /* not available via kvm */ 168 #define N_RIP6STAT 49 169 { "_rip6stat", 0, 0, 0, 0 }, /* not available via kvm */ 170 #define N_ARPINTRQ 50 171 { "_arpintrq", 0, 0, 0, 0 }, 172 #define N_IPINTRQ 51 173 { "_ipintrq", 0, 0, 0, 0 }, 174 #define N_IP6INTRQ 52 175 { "_ip6intrq", 0, 0, 0, 0 }, 176 #define N_ATINTRQ1 53 177 { "_atintrq1", 0, 0, 0, 0 }, 178 #define N_ATINTRQ2 54 179 { "_atintrq2", 0, 0, 0, 0 }, 180 #define N_NSINTRQ 55 181 { "_nsintrq", 0, 0, 0, 0 }, 182 #define N_CLNLINTRQ 56 183 { "_clnlintrq", 0, 0, 0, 0 }, 184 #define N_LLCINTRQ 57 185 { "_llcintrq", 0, 0, 0, 0 }, 186 #define N_HDINTRQ 58 187 { "_hdintrq", 0, 0, 0, 0 }, 188 #define N_NATMINTRQ 59 189 { "_natmintrq", 0, 0, 0, 0 }, 190 #define N_PPPOEDISCINQ 61 191 { "_ppoediscinq", 0, 0, 0, 0 }, 192 #define N_PPPOEINQ 61 193 { "_ppoeinq", 0, 0, 0, 0 }, 194 #define N_PKINTRQ 62 195 { "_pkintrq", 0, 0, 0, 0 }, 196 #define N_HARDCLOCK_TICKS 63 197 { "_hardclock_ticks", 0, 0, 0, 0 }, 198 #define N_PIMSTAT 64 199 { "_pimstat", 0, 0, 0, 0 }, 200 #define N_CARPSTAT 65 201 { "_carpstats", 0, 0, 0, 0 }, /* not available via kvm */ 202 #define N_PFSYNCSTAT 66 203 { "_pfsyncstats", 0, 0, 0, 0}, /* not available via kvm */ 204 { "", 0, 0, 0, 0 }, 205 }; 206 207 struct protox { 208 u_char pr_index; /* index into nlist of cb head */ 209 u_char pr_sindex; /* index into nlist of stat block */ 210 u_char pr_wanted; /* 1 if wanted, 0 otherwise */ 211 void (*pr_cblocks) /* control blocks printing routine */ 212 __P((u_long, const char *)); 213 void (*pr_stats) /* statistics printing routine */ 214 __P((u_long, const char *)); 215 void (*pr_istats) 216 __P((const char *)); /* per/if statistics printing routine */ 217 void (*pr_dump) /* PCB state dump routine */ 218 __P((u_long)); 219 const char *pr_name; /* well-known name */ 220 } protox[] = { 221 { N_TCBTABLE, N_TCPSTAT, 1, protopr, 222 tcp_stats, NULL, tcp_dump, "tcp" }, 223 { N_UDBTABLE, N_UDPSTAT, 1, protopr, 224 udp_stats, NULL, 0, "udp" }, 225 { -1, N_IPSTAT, 1, 0, 226 ip_stats, NULL, 0, "ip" }, 227 { -1, N_ICMPSTAT, 1, 0, 228 icmp_stats, NULL, 0, "icmp" }, 229 { -1, N_IGMPSTAT, 1, 0, 230 igmp_stats, NULL, 0, "igmp" }, 231 { -1, N_CARPSTAT, 1, 0, 232 carp_stats, NULL, 0, "carp" }, 233 #ifdef IPSEC 234 { -1, N_IPSECSTAT, 1, 0, 235 ipsec_switch, NULL, 0, "ipsec" }, 236 #endif 237 { -1, N_PIMSTAT, 1, 0, 238 pim_stats, NULL, 0, "pim" }, 239 { -1, N_PFSYNCSTAT, 1, 0, 240 pfsync_stats, NULL, 0, "pfsync" }, 241 { -1, -1, 0, 0, 242 0, NULL, 0, 0 } 243 }; 244 245 #ifdef INET6 246 struct protox ip6protox[] = { 247 { -1, N_IP6STAT, 1, 0, 248 ip6_stats, ip6_ifstats, 0, "ip6" }, 249 { -1, N_ICMP6STAT, 1, 0, 250 icmp6_stats, icmp6_ifstats, 0, "icmp6" }, 251 #ifdef TCP6 252 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 253 tcp6_stats, NULL, tcp6_dump, "tcp6" }, 254 #else 255 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 256 tcp_stats, NULL, tcp_dump, "tcp6" }, 257 #endif 258 { N_UDBTABLE, N_UDP6STAT, 1, ip6protopr, 259 udp6_stats, NULL, 0, "udp6" }, 260 #ifdef IPSEC 261 { -1, N_IPSEC6STAT, 1, 0, 262 ipsec_switch, NULL, 0, "ipsec6" }, 263 #endif 264 { -1, N_PIM6STAT, 1, 0, 265 pim6_stats, NULL, 0, "pim6" }, 266 { -1, N_RIP6STAT, 1, 0, 267 rip6_stats, NULL, 0, "rip6" }, 268 { -1, -1, 0, 0, 269 0, NULL, 0, 0 } 270 }; 271 #endif 272 273 struct protox arpprotox[] = { 274 { -1, N_ARPSTAT, 1, 0, 275 arp_stats, NULL, 0, "arp" }, 276 { -1, -1, 0, 0, 277 0, NULL, 0, 0 } 278 }; 279 280 #ifdef IPSEC 281 struct protox pfkeyprotox[] = { 282 { -1, N_PFKEYSTAT, 1, 0, 283 pfkey_stats, NULL, 0, "pfkey" }, 284 { -1, -1, 0, 0, 285 0, NULL, 0, 0 } 286 }; 287 #endif 288 289 #ifndef SMALL 290 struct protox atalkprotox[] = { 291 { N_DDPCB, N_DDPSTAT, 1, atalkprotopr, 292 ddp_stats, NULL, 0, "ddp" }, 293 { -1, -1, 0, 0, 294 0, NULL, 0, NULL } 295 }; 296 297 struct protox isoprotox[] = { 298 { ISO_TP, N_TPSTAT, 1, iso_protopr, 299 tp_stats, NULL, 0, "tp" }, 300 { N_CLTP, N_CLTPSTAT, 1, iso_protopr, 301 cltp_stats, NULL, 0, "cltp" }, 302 { -1, N_CLNPSTAT, 1, 0, 303 clnp_stats, NULL, 0, "clnp"}, 304 { -1, N_ESISSTAT, 1, 0, 305 esis_stats, NULL, 0, "esis"}, 306 { -1, -1, 0, 0, 307 0, NULL, 0, 0 } 308 }; 309 #endif 310 311 struct protox *protoprotox[] = { protox, 312 #ifdef INET6 313 ip6protox, 314 #endif 315 arpprotox, 316 #ifdef IPSEC 317 pfkeyprotox, 318 #endif 319 #ifndef SMALL 320 atalkprotox, 321 isoprotox, 322 #endif 323 NULL }; 324 325 const struct softintrq { 326 const char *siq_name; 327 int siq_index; 328 } softintrq[] = { 329 { "arpintrq", N_ARPINTRQ }, 330 { "ipintrq", N_IPINTRQ }, 331 { "ip6intrq", N_IP6INTRQ }, 332 { "atintrq1", N_ATINTRQ1 }, 333 { "atintrq2", N_ATINTRQ2 }, 334 { "clnlintrq", N_CLNLINTRQ }, 335 { "llcintrq", N_LLCINTRQ }, 336 { "hdintrq", N_HDINTRQ }, 337 { "natmintrq", N_NATMINTRQ }, 338 { "ppoediscinq", N_PPPOEDISCINQ }, 339 { "ppoeinq", N_PPPOEINQ }, 340 { "pkintrq", N_PKINTRQ }, 341 { NULL, -1 }, 342 }; 343 344 int main __P((int, char *[])); 345 static void printproto __P((struct protox *, const char *)); 346 static void print_softintrq __P((void)); 347 __dead static void usage(void); 348 static struct protox *name2protox __P((const char *)); 349 static struct protox *knownname __P((const char *)); 350 static void prepare(const char *, const char *, struct protox *tp); 351 static kvm_t *prepare_kvmd(const char *, const char *, char *); 352 353 static kvm_t *kvmd = NULL; 354 gid_t egid; 355 int interval; /* repeat interval for i/f stats */ 356 static const char *nlistf = NULL, *memf = NULL; 357 358 kvm_t * 359 get_kvmd(void) 360 { 361 char buf[_POSIX2_LINE_MAX]; 362 363 if (kvmd != NULL) 364 return kvmd; 365 if ((kvmd = prepare_kvmd(nlistf, memf, buf)) == NULL) 366 errx(1, "kvm error: %s", buf); 367 return kvmd; 368 } 369 370 static kvm_t * 371 prepare_kvmd(const char *nf, const char *mf, char *errbuf) 372 { 373 kvm_t *k; 374 375 (void)setegid(egid); 376 k = kvm_openfiles(nf, mf, NULL, O_RDONLY, errbuf); 377 (void)setgid(getgid()); 378 return k; 379 } 380 381 void 382 prepare(const char *nf, const char *mf, struct protox *tp) 383 { 384 char buf[_POSIX2_LINE_MAX]; 385 /* 386 * Try to figure out if we can use sysctl or not. 387 */ 388 if (nf != NULL && mf != NULL) { 389 /* Of course, we can't use sysctl with dumps. */ 390 if (force_sysctl) 391 errx(EXIT_FAILURE, "can't use sysctl with dumps"); 392 393 /* If we have -M and -N, we're not dealing with live memory. */ 394 use_sysctl = 0; 395 } else if (qflag || 396 rflag || 397 iflag || 398 #ifndef SMALL 399 gflag || 400 (pflag && tp->pr_sindex == N_TPSTAT) || 401 (pflag && tp->pr_sindex == N_CLTPSTAT) || 402 (pflag && tp->pr_sindex == N_CLNPSTAT) || 403 (pflag && tp->pr_sindex == N_ESISSTAT) || 404 #endif 405 (pflag && tp->pr_sindex == N_PIMSTAT) || 406 Pflag) { 407 /* These flags are not yet supported via sysctl(3). */ 408 use_sysctl = 0; 409 } else { 410 /* We can use sysctl(3). */ 411 use_sysctl = 1; 412 } 413 414 if (force_sysctl && !use_sysctl) { 415 /* Let the user know what's about to happen. */ 416 warnx("forcing sysctl usage even though it might not be "\ 417 "supported"); 418 use_sysctl = 1; 419 } 420 421 kvmd = prepare_kvmd(nf, mf, buf); 422 423 if (!use_sysctl) { 424 425 if (kvmd == NULL) 426 errx(1, "kvm error: %s", buf); 427 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 428 if (nf) 429 errx(1, "%s: no namelist", nf); 430 else 431 errx(1, "no namelist"); 432 } 433 } else 434 (void)setgid(getgid()); 435 } 436 437 int 438 main(argc, argv) 439 int argc; 440 char *argv[]; 441 { 442 struct protoent *p; 443 struct protox *tp; /* for printing cblocks & stats */ 444 int ch; 445 char *cp; 446 u_long pcbaddr; 447 448 if (prog_init) { 449 if (prog_init() == -1) 450 err(1, "init failed"); 451 force_sysctl = 1; /* cheap trick */ 452 } 453 454 egid = getegid(); 455 (void)setegid(getgid()); 456 tp = NULL; 457 af = AF_UNSPEC; 458 pcbaddr = 0; 459 460 while ((ch = getopt(argc, argv, 461 "AabBdf:ghI:LliM:mN:nP:p:qrsStTuVvw:X")) != -1) 462 switch (ch) { 463 case 'A': 464 Aflag = 1; 465 break; 466 case 'a': 467 aflag = 1; 468 break; 469 case 'b': 470 bflag = 1; 471 break; 472 case 'B': 473 Bflag = 1; 474 break; 475 case 'd': 476 dflag = 1; 477 break; 478 case 'f': 479 if (strcmp(optarg, "inet") == 0) 480 af = AF_INET; 481 else if (strcmp(optarg, "inet6") == 0) 482 af = AF_INET6; 483 else if (strcmp(optarg, "arp") == 0) 484 af = AF_ARP; 485 else if (strcmp(optarg, "pfkey") == 0) 486 af = PF_KEY; 487 else if (strcmp(optarg, "unix") == 0 488 || strcmp(optarg, "local") == 0) 489 af = AF_LOCAL; 490 else if (strcmp(optarg, "iso") == 0) 491 af = AF_ISO; 492 else if (strcmp(optarg, "atalk") == 0) 493 af = AF_APPLETALK; 494 else if (strcmp(optarg, "mpls") == 0) 495 af = AF_MPLS; 496 else 497 errx(1, "%s: unknown address family", 498 optarg); 499 break; 500 #ifndef SMALL 501 case 'g': 502 gflag = 1; 503 break; 504 #endif 505 case 'h': 506 hflag = 1; 507 break; 508 case 'I': 509 iflag = 1; 510 interface = optarg; 511 break; 512 case 'i': 513 iflag = 1; 514 break; 515 case 'L': 516 Lflag = 1; 517 break; 518 case 'l': 519 lflag = 1; 520 break; 521 case 'M': 522 memf = optarg; 523 break; 524 case 'm': 525 mflag = 1; 526 break; 527 case 'N': 528 nlistf = optarg; 529 break; 530 case 'n': 531 numeric_addr = numeric_port = nflag = 1; 532 break; 533 case 'P': 534 errno = 0; 535 pcbaddr = strtoul(optarg, &cp, 16); 536 if (*cp != '\0' || errno == ERANGE) 537 errx(1, "invalid PCB address %s", 538 optarg); 539 Pflag = 1; 540 break; 541 case 'p': 542 if ((tp = name2protox(optarg)) == NULL) 543 errx(1, "%s: unknown or uninstrumented protocol", 544 optarg); 545 pflag = 1; 546 break; 547 case 'q': 548 qflag = 1; 549 break; 550 case 'r': 551 rflag = 1; 552 break; 553 case 's': 554 ++sflag; 555 break; 556 case 'S': 557 numeric_addr = 1; 558 break; 559 case 't': 560 tflag = 1; 561 break; 562 case 'T': 563 tagflag = 1; 564 break; 565 case 'u': 566 af = AF_LOCAL; 567 break; 568 case 'V': 569 Vflag++; 570 break; 571 case 'v': 572 vflag++; 573 break; 574 case 'w': 575 interval = atoi(optarg); 576 iflag = 1; 577 break; 578 case 'X': 579 force_sysctl = 1; 580 break; 581 case '?': 582 default: 583 usage(); 584 } 585 argv += optind; 586 argc -= optind; 587 588 #define BACKWARD_COMPATIBILITY 589 #ifdef BACKWARD_COMPATIBILITY 590 if (*argv) { 591 if (isdigit((unsigned char)**argv)) { 592 interval = atoi(*argv); 593 if (interval <= 0) 594 usage(); 595 ++argv; 596 iflag = 1; 597 } 598 if (*argv) { 599 nlistf = *argv; 600 if (*++argv) 601 memf = *argv; 602 } 603 } 604 #endif 605 606 prepare(nlistf, memf, tp); 607 608 #ifndef SMALL 609 if (Bflag) { 610 if (sflag) 611 bpf_stats(); 612 else 613 bpf_dump(interface); 614 exit(0); 615 } 616 #endif 617 618 if (mflag) { 619 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 620 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 621 nl[N_MCLPOOL].n_value); 622 exit(0); 623 } 624 if (Pflag) { 625 if (tp == NULL) { 626 /* Default to TCP. */ 627 tp = name2protox("tcp"); 628 } 629 if (tp->pr_dump) 630 (*tp->pr_dump)(pcbaddr); 631 else 632 printf("%s: no PCB dump routine\n", tp->pr_name); 633 exit(0); 634 } 635 if (pflag) { 636 if (iflag && tp->pr_istats) 637 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 638 else if (tp->pr_stats) 639 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 640 tp->pr_name); 641 else 642 printf("%s: no stats routine\n", tp->pr_name); 643 exit(0); 644 } 645 if (qflag) { 646 print_softintrq(); 647 exit(0); 648 } 649 /* 650 * Keep file descriptors open to avoid overhead 651 * of open/close on each call to get* routines. 652 */ 653 sethostent(1); 654 setnetent(1); 655 if (iflag) { 656 if (af != AF_UNSPEC) 657 goto protostat; 658 659 intpr(interval, nl[N_IFNET].n_value, NULL); 660 exit(0); 661 } 662 if (rflag) { 663 if (sflag) 664 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 665 else { 666 if (use_sysctl) 667 p_rttables(af); 668 else 669 routepr(nl[N_RTREE].n_value); 670 } 671 exit(0); 672 } 673 #ifndef SMALL 674 if (gflag) { 675 if (sflag) { 676 if (af == AF_INET || af == AF_UNSPEC) 677 mrt_stats(nl[N_MRTPROTO].n_value, 678 nl[N_MRTSTAT].n_value); 679 #ifdef INET6 680 if (af == AF_INET6 || af == AF_UNSPEC) 681 mrt6_stats(nl[N_MRT6PROTO].n_value, 682 nl[N_MRT6STAT].n_value); 683 #endif 684 } 685 else { 686 if (af == AF_INET || af == AF_UNSPEC) 687 mroutepr(nl[N_MRTPROTO].n_value, 688 nl[N_MFCHASHTBL].n_value, 689 nl[N_MFCHASH].n_value, 690 nl[N_VIFTABLE].n_value); 691 #ifdef INET6 692 if (af == AF_INET6 || af == AF_UNSPEC) 693 mroute6pr(nl[N_MRT6PROTO].n_value, 694 nl[N_MF6CTABLE].n_value, 695 nl[N_MIF6TABLE].n_value); 696 #endif 697 } 698 exit(0); 699 } 700 #endif 701 protostat: 702 if (af == AF_INET || af == AF_UNSPEC) { 703 setprotoent(1); 704 setservent(1); 705 /* ugh, this is O(MN) ... why do we do this? */ 706 while ((p = getprotoent()) != NULL) { 707 for (tp = protox; tp->pr_name; tp++) 708 if (strcmp(tp->pr_name, p->p_name) == 0) 709 break; 710 if (tp->pr_name == 0 || tp->pr_wanted == 0) 711 continue; 712 printproto(tp, p->p_name); 713 tp->pr_wanted = 0; 714 } 715 endprotoent(); 716 for (tp = protox; tp->pr_name; tp++) 717 if (tp->pr_wanted) 718 printproto(tp, tp->pr_name); 719 } 720 #ifdef INET6 721 if (af == AF_INET6 || af == AF_UNSPEC) 722 for (tp = ip6protox; tp->pr_name; tp++) 723 printproto(tp, tp->pr_name); 724 #endif 725 if (af == AF_ARP || af == AF_UNSPEC) 726 for (tp = arpprotox; tp->pr_name; tp++) 727 printproto(tp, tp->pr_name); 728 #ifdef IPSEC 729 if (af == PF_KEY || af == AF_UNSPEC) 730 for (tp = pfkeyprotox; tp->pr_name; tp++) 731 printproto(tp, tp->pr_name); 732 #endif 733 #ifndef SMALL 734 if (af == AF_APPLETALK || af == AF_UNSPEC) 735 for (tp = atalkprotox; tp->pr_name; tp++) 736 printproto(tp, tp->pr_name); 737 if (af == AF_ISO || af == AF_UNSPEC) 738 for (tp = isoprotox; tp->pr_name; tp++) 739 printproto(tp, tp->pr_name); 740 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 741 unixpr(nl[N_UNIXSW].n_value); 742 #endif 743 exit(0); 744 } 745 746 /* 747 * Print out protocol statistics or control blocks (per sflag). 748 * If the interface was not specifically requested, and the symbol 749 * is not in the namelist, ignore this one. 750 */ 751 static void 752 printproto(tp, name) 753 struct protox *tp; 754 const char *name; 755 { 756 void (*pr) __P((u_long, const char *)); 757 u_long off; 758 759 if (sflag) { 760 if (iflag) { 761 if (tp->pr_istats) 762 intpr(interval, nl[N_IFNET].n_value, 763 tp->pr_istats); 764 return; 765 } 766 else { 767 pr = tp->pr_stats; 768 off = nl[tp->pr_sindex].n_value; 769 } 770 } else { 771 pr = tp->pr_cblocks; 772 off = nl[tp->pr_index].n_value; 773 } 774 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 775 (*pr)(off, name); 776 } 777 } 778 779 /* 780 * Print softintrq status. 781 */ 782 void 783 print_softintrq() 784 { 785 struct ifqueue intrq, *ifq = &intrq; 786 const struct softintrq *siq; 787 u_long off; 788 789 for (siq = softintrq; siq->siq_name != NULL; siq++) { 790 off = nl[siq->siq_index].n_value; 791 if (off == 0) 792 continue; 793 794 kread(off, (char *)ifq, sizeof(*ifq)); 795 printf("%s:\n", siq->siq_name); 796 printf("\tqueue length: %d\n", ifq->ifq_len); 797 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 798 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 799 } 800 } 801 802 /* 803 * Read kernel memory, return 0 on success. 804 */ 805 int 806 kread(addr, buf, size) 807 u_long addr; 808 char *buf; 809 int size; 810 { 811 812 if (kvm_read(kvmd, addr, buf, size) != size) { 813 warnx("%s", kvm_geterr(kvmd)); 814 return (-1); 815 } 816 return (0); 817 } 818 819 const char * 820 plural(n) 821 int n; 822 { 823 824 return (n != 1 ? "s" : ""); 825 } 826 827 const char * 828 plurales(n) 829 int n; 830 { 831 832 return (n != 1 ? "es" : ""); 833 } 834 835 int 836 get_hardticks(void) 837 { 838 int hardticks; 839 840 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 841 sizeof(hardticks)); 842 return (hardticks); 843 } 844 845 /* 846 * Find the protox for the given "well-known" name. 847 */ 848 static struct protox * 849 knownname(name) 850 const char *name; 851 { 852 struct protox **tpp, *tp; 853 854 for (tpp = protoprotox; *tpp; tpp++) 855 for (tp = *tpp; tp->pr_name; tp++) 856 if (strcmp(tp->pr_name, name) == 0) 857 return (tp); 858 return (NULL); 859 } 860 861 /* 862 * Find the protox corresponding to name. 863 */ 864 static struct protox * 865 name2protox(name) 866 const char *name; 867 { 868 struct protox *tp; 869 char **alias; /* alias from p->aliases */ 870 struct protoent *p; 871 872 /* 873 * Try to find the name in the list of "well-known" names. If that 874 * fails, check if name is an alias for an Internet protocol. 875 */ 876 if ((tp = knownname(name)) != NULL) 877 return (tp); 878 879 setprotoent(1); /* make protocol lookup cheaper */ 880 while ((p = getprotoent()) != NULL) { 881 /* assert: name not same as p->name */ 882 for (alias = p->p_aliases; *alias; alias++) 883 if (strcmp(name, *alias) == 0) { 884 endprotoent(); 885 return (knownname(p->p_name)); 886 } 887 } 888 endprotoent(); 889 return (NULL); 890 } 891 892 static void 893 usage() 894 { 895 const char *progname = getprogname(); 896 897 (void)fprintf(stderr, 898 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 899 (void)fprintf(stderr, 900 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 901 progname); 902 (void)fprintf(stderr, 903 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 904 (void)fprintf(stderr, 905 " %s [-p protocol] [-M core] [-N system]\n", progname); 906 (void)fprintf(stderr, 907 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 908 (void)fprintf(stderr, 909 " %s [-p protocol] [-i] [-I Interface] \n", progname); 910 (void)fprintf(stderr, 911 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 912 (void)fprintf(stderr, 913 " %s [-s] [-B] [-I interface]\n", progname); 914 exit(1); 915 } 916
Indexes created Thu Sep 25 08:09:54 GMT 2025