main.c revision 1.84
1 /* $NetBSD: main.c,v 1.84 2013/01/28 13:49:08 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 1.84 2013/01/28 13:49:08 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 fast_ipsec_stats, 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 fast_ipsec_stats, 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 iflag || 397 #ifndef SMALL 398 gflag || 399 (pflag && tp->pr_sindex == N_TPSTAT) || 400 (pflag && tp->pr_sindex == N_CLTPSTAT) || 401 (pflag && tp->pr_sindex == N_CLNPSTAT) || 402 (pflag && tp->pr_sindex == N_ESISSTAT) || 403 #endif 404 (pflag && tp->pr_sindex == N_PIMSTAT) || 405 Pflag) { 406 /* These flags are not yet supported via sysctl(3). */ 407 use_sysctl = 0; 408 } else { 409 /* We can use sysctl(3). */ 410 use_sysctl = 1; 411 } 412 413 if (force_sysctl && !use_sysctl) { 414 /* Let the user know what's about to happen. */ 415 warnx("forcing sysctl usage even though it might not be "\ 416 "supported"); 417 use_sysctl = 1; 418 } 419 420 kvmd = prepare_kvmd(nf, mf, buf); 421 422 if (!use_sysctl) { 423 424 if (kvmd == NULL) 425 errx(1, "kvm error: %s", buf); 426 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 427 if (nf) 428 errx(1, "%s: no namelist", nf); 429 else 430 errx(1, "no namelist"); 431 } 432 } else 433 (void)setgid(getgid()); 434 } 435 436 int 437 main(int argc, char *argv[]) 438 { 439 struct protoent *p; 440 struct protox *tp; /* for printing cblocks & stats */ 441 int ch; 442 char *cp; 443 u_long pcbaddr; 444 445 if (prog_init) { 446 if (prog_init() == -1) 447 err(1, "init failed"); 448 force_sysctl = 1; /* cheap trick */ 449 } 450 451 egid = getegid(); 452 (void)setegid(getgid()); 453 tp = NULL; 454 af = AF_UNSPEC; 455 pcbaddr = 0; 456 457 while ((ch = getopt(argc, argv, 458 "AabBdf:ghI:LliM:mN:nP:p:qrsStTuVvw:X")) != -1) 459 switch (ch) { 460 case 'A': 461 Aflag = 1; 462 break; 463 case 'a': 464 aflag = 1; 465 break; 466 case 'b': 467 bflag = 1; 468 break; 469 case 'B': 470 Bflag = 1; 471 break; 472 case 'd': 473 dflag = 1; 474 break; 475 case 'f': 476 if (strcmp(optarg, "inet") == 0) 477 af = AF_INET; 478 else if (strcmp(optarg, "inet6") == 0) 479 af = AF_INET6; 480 else if (strcmp(optarg, "arp") == 0) 481 af = AF_ARP; 482 else if (strcmp(optarg, "pfkey") == 0) 483 af = PF_KEY; 484 else if (strcmp(optarg, "unix") == 0 485 || strcmp(optarg, "local") == 0) 486 af = AF_LOCAL; 487 else if (strcmp(optarg, "iso") == 0) 488 af = AF_ISO; 489 else if (strcmp(optarg, "atalk") == 0) 490 af = AF_APPLETALK; 491 else if (strcmp(optarg, "mpls") == 0) 492 af = AF_MPLS; 493 else 494 errx(1, "%s: unknown address family", 495 optarg); 496 break; 497 #ifndef SMALL 498 case 'g': 499 gflag = 1; 500 break; 501 #endif 502 case 'h': 503 hflag = 1; 504 break; 505 case 'I': 506 iflag = 1; 507 interface = optarg; 508 break; 509 case 'i': 510 iflag = 1; 511 break; 512 case 'L': 513 Lflag = 1; 514 break; 515 case 'l': 516 lflag = 1; 517 break; 518 case 'M': 519 memf = optarg; 520 break; 521 case 'm': 522 mflag = 1; 523 break; 524 case 'N': 525 nlistf = optarg; 526 break; 527 case 'n': 528 numeric_addr = numeric_port = nflag = 1; 529 break; 530 case 'P': 531 errno = 0; 532 pcbaddr = strtoul(optarg, &cp, 16); 533 if (*cp != '\0' || errno == ERANGE) 534 errx(1, "invalid PCB address %s", 535 optarg); 536 Pflag = 1; 537 break; 538 case 'p': 539 if ((tp = name2protox(optarg)) == NULL) 540 errx(1, "%s: unknown or uninstrumented protocol", 541 optarg); 542 pflag = 1; 543 break; 544 case 'q': 545 qflag = 1; 546 break; 547 case 'r': 548 rflag = 1; 549 break; 550 case 's': 551 ++sflag; 552 break; 553 case 'S': 554 numeric_addr = 1; 555 break; 556 case 't': 557 tflag = 1; 558 break; 559 case 'T': 560 tagflag = 1; 561 break; 562 case 'u': 563 af = AF_LOCAL; 564 break; 565 case 'V': 566 Vflag++; 567 break; 568 case 'v': 569 vflag++; 570 break; 571 case 'w': 572 interval = atoi(optarg); 573 iflag = 1; 574 break; 575 case 'X': 576 force_sysctl = 1; 577 break; 578 case '?': 579 default: 580 usage(); 581 } 582 argv += optind; 583 argc -= optind; 584 585 #define BACKWARD_COMPATIBILITY 586 #ifdef BACKWARD_COMPATIBILITY 587 if (*argv) { 588 if (isdigit((unsigned char)**argv)) { 589 interval = atoi(*argv); 590 if (interval <= 0) 591 usage(); 592 ++argv; 593 iflag = 1; 594 } 595 if (*argv) { 596 nlistf = *argv; 597 if (*++argv) 598 memf = *argv; 599 } 600 } 601 #endif 602 603 prepare(nlistf, memf, tp); 604 605 #ifndef SMALL 606 if (Bflag) { 607 if (sflag) 608 bpf_stats(); 609 else 610 bpf_dump(interface); 611 exit(0); 612 } 613 #endif 614 615 if (mflag) { 616 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 617 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 618 nl[N_MCLPOOL].n_value); 619 exit(0); 620 } 621 if (Pflag) { 622 if (tp == NULL) { 623 /* Default to TCP. */ 624 tp = name2protox("tcp"); 625 } 626 if (tp->pr_dump) 627 (*tp->pr_dump)(pcbaddr); 628 else 629 printf("%s: no PCB dump routine\n", tp->pr_name); 630 exit(0); 631 } 632 if (pflag) { 633 if (iflag && tp->pr_istats) 634 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 635 else if (tp->pr_stats) 636 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 637 tp->pr_name); 638 else 639 printf("%s: no stats routine\n", tp->pr_name); 640 exit(0); 641 } 642 if (qflag) { 643 print_softintrq(); 644 exit(0); 645 } 646 /* 647 * Keep file descriptors open to avoid overhead 648 * of open/close on each call to get* routines. 649 */ 650 sethostent(1); 651 setnetent(1); 652 if (iflag) { 653 if (af != AF_UNSPEC) 654 goto protostat; 655 656 intpr(interval, nl[N_IFNET].n_value, NULL); 657 exit(0); 658 } 659 if (rflag) { 660 if (sflag) 661 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 662 else { 663 if (!use_sysctl) 664 err(1, "-r is not supported " 665 "for post-mortem analysis."); 666 p_rttables(af); 667 } 668 exit(0); 669 } 670 #ifndef SMALL 671 if (gflag) { 672 if (sflag) { 673 if (af == AF_INET || af == AF_UNSPEC) 674 mrt_stats(nl[N_MRTPROTO].n_value, 675 nl[N_MRTSTAT].n_value); 676 #ifdef INET6 677 if (af == AF_INET6 || af == AF_UNSPEC) 678 mrt6_stats(nl[N_MRT6PROTO].n_value, 679 nl[N_MRT6STAT].n_value); 680 #endif 681 } 682 else { 683 if (af == AF_INET || af == AF_UNSPEC) 684 mroutepr(nl[N_MRTPROTO].n_value, 685 nl[N_MFCHASHTBL].n_value, 686 nl[N_MFCHASH].n_value, 687 nl[N_VIFTABLE].n_value); 688 #ifdef INET6 689 if (af == AF_INET6 || af == AF_UNSPEC) 690 mroute6pr(nl[N_MRT6PROTO].n_value, 691 nl[N_MF6CTABLE].n_value, 692 nl[N_MIF6TABLE].n_value); 693 #endif 694 } 695 exit(0); 696 } 697 #endif 698 protostat: 699 if (af == AF_INET || af == AF_UNSPEC) { 700 setprotoent(1); 701 setservent(1); 702 /* ugh, this is O(MN) ... why do we do this? */ 703 while ((p = getprotoent()) != NULL) { 704 for (tp = protox; tp->pr_name; tp++) 705 if (strcmp(tp->pr_name, p->p_name) == 0) 706 break; 707 if (tp->pr_name == 0 || tp->pr_wanted == 0) 708 continue; 709 printproto(tp, p->p_name); 710 tp->pr_wanted = 0; 711 } 712 endprotoent(); 713 for (tp = protox; tp->pr_name; tp++) 714 if (tp->pr_wanted) 715 printproto(tp, tp->pr_name); 716 } 717 #ifdef INET6 718 if (af == AF_INET6 || af == AF_UNSPEC) 719 for (tp = ip6protox; tp->pr_name; tp++) 720 printproto(tp, tp->pr_name); 721 #endif 722 if (af == AF_ARP || af == AF_UNSPEC) 723 for (tp = arpprotox; tp->pr_name; tp++) 724 printproto(tp, tp->pr_name); 725 #ifdef IPSEC 726 if (af == PF_KEY || af == AF_UNSPEC) 727 for (tp = pfkeyprotox; tp->pr_name; tp++) 728 printproto(tp, tp->pr_name); 729 #endif 730 #ifndef SMALL 731 if (af == AF_APPLETALK || af == AF_UNSPEC) 732 for (tp = atalkprotox; tp->pr_name; tp++) 733 printproto(tp, tp->pr_name); 734 if (af == AF_ISO || af == AF_UNSPEC) 735 for (tp = isoprotox; tp->pr_name; tp++) 736 printproto(tp, tp->pr_name); 737 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 738 unixpr(nl[N_UNIXSW].n_value); 739 #endif 740 exit(0); 741 } 742 743 /* 744 * Print out protocol statistics or control blocks (per sflag). 745 * If the interface was not specifically requested, and the symbol 746 * is not in the namelist, ignore this one. 747 */ 748 static void 749 printproto(struct protox *tp, const char *name) 750 { 751 void (*pr) __P((u_long, const char *)); 752 u_long off; 753 754 if (sflag) { 755 if (iflag) { 756 if (tp->pr_istats) 757 intpr(interval, nl[N_IFNET].n_value, 758 tp->pr_istats); 759 return; 760 } 761 else { 762 pr = tp->pr_stats; 763 off = nl[tp->pr_sindex].n_value; 764 } 765 } else { 766 pr = tp->pr_cblocks; 767 off = nl[tp->pr_index].n_value; 768 } 769 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 770 (*pr)(off, name); 771 } 772 } 773 774 /* 775 * Print softintrq status. 776 */ 777 void 778 print_softintrq(void) 779 { 780 struct ifqueue intrq, *ifq = &intrq; 781 const struct softintrq *siq; 782 u_long off; 783 784 for (siq = softintrq; siq->siq_name != NULL; siq++) { 785 off = nl[siq->siq_index].n_value; 786 if (off == 0) 787 continue; 788 789 kread(off, (char *)ifq, sizeof(*ifq)); 790 printf("%s:\n", siq->siq_name); 791 printf("\tqueue length: %d\n", ifq->ifq_len); 792 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 793 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 794 } 795 } 796 797 /* 798 * Read kernel memory, return 0 on success. 799 */ 800 int 801 kread(u_long addr, char *buf, int size) 802 { 803 804 if (kvm_read(kvmd, addr, buf, size) != size) { 805 warnx("%s", kvm_geterr(kvmd)); 806 return (-1); 807 } 808 return (0); 809 } 810 811 const char * 812 plural(int n) 813 { 814 815 return (n != 1 ? "s" : ""); 816 } 817 818 const char * 819 plurales(int n) 820 { 821 822 return (n != 1 ? "es" : ""); 823 } 824 825 int 826 get_hardticks(void) 827 { 828 int hardticks; 829 830 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 831 sizeof(hardticks)); 832 return (hardticks); 833 } 834 835 /* 836 * Find the protox for the given "well-known" name. 837 */ 838 static struct protox * 839 knownname(const char *name) 840 { 841 struct protox **tpp, *tp; 842 843 for (tpp = protoprotox; *tpp; tpp++) 844 for (tp = *tpp; tp->pr_name; tp++) 845 if (strcmp(tp->pr_name, name) == 0) 846 return (tp); 847 return (NULL); 848 } 849 850 /* 851 * Find the protox corresponding to name. 852 */ 853 static struct protox * 854 name2protox(const char *name) 855 { 856 struct protox *tp; 857 char **alias; /* alias from p->aliases */ 858 struct protoent *p; 859 860 /* 861 * Try to find the name in the list of "well-known" names. If that 862 * fails, check if name is an alias for an Internet protocol. 863 */ 864 if ((tp = knownname(name)) != NULL) 865 return (tp); 866 867 setprotoent(1); /* make protocol lookup cheaper */ 868 while ((p = getprotoent()) != NULL) { 869 /* assert: name not same as p->name */ 870 for (alias = p->p_aliases; *alias; alias++) 871 if (strcmp(name, *alias) == 0) { 872 endprotoent(); 873 return (knownname(p->p_name)); 874 } 875 } 876 endprotoent(); 877 return (NULL); 878 } 879 880 static void 881 usage(void) 882 { 883 const char *progname = getprogname(); 884 885 (void)fprintf(stderr, 886 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 887 (void)fprintf(stderr, 888 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 889 progname); 890 (void)fprintf(stderr, 891 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 892 (void)fprintf(stderr, 893 " %s [-p protocol] [-M core] [-N system]\n", progname); 894 (void)fprintf(stderr, 895 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 896 (void)fprintf(stderr, 897 " %s [-p protocol] [-i] [-I Interface] \n", progname); 898 (void)fprintf(stderr, 899 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 900 (void)fprintf(stderr, 901 " %s [-s] [-B] [-I interface]\n", progname); 902 exit(1); 903 } 904
Indexes created Sat Sep 27 14:09:57 GMT 2025