main.c revision 1.82
1 /* $NetBSD: main.c,v 1.82 2012/03/20 20:34:58 matt 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 1.82 2012/03/20 20:34:58 matt 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(int argc, char *argv[]) 439 { 440 struct protoent *p; 441 struct protox *tp; /* for printing cblocks & stats */ 442 int ch; 443 char *cp; 444 u_long pcbaddr; 445 446 if (prog_init) { 447 if (prog_init() == -1) 448 err(1, "init failed"); 449 force_sysctl = 1; /* cheap trick */ 450 } 451 452 egid = getegid(); 453 (void)setegid(getgid()); 454 tp = NULL; 455 af = AF_UNSPEC; 456 pcbaddr = 0; 457 458 while ((ch = getopt(argc, argv, 459 "AabBdf:ghI:LliM:mN:nP:p:qrsStTuVvw:X")) != -1) 460 switch (ch) { 461 case 'A': 462 Aflag = 1; 463 break; 464 case 'a': 465 aflag = 1; 466 break; 467 case 'b': 468 bflag = 1; 469 break; 470 case 'B': 471 Bflag = 1; 472 break; 473 case 'd': 474 dflag = 1; 475 break; 476 case 'f': 477 if (strcmp(optarg, "inet") == 0) 478 af = AF_INET; 479 else if (strcmp(optarg, "inet6") == 0) 480 af = AF_INET6; 481 else if (strcmp(optarg, "arp") == 0) 482 af = AF_ARP; 483 else if (strcmp(optarg, "pfkey") == 0) 484 af = PF_KEY; 485 else if (strcmp(optarg, "unix") == 0 486 || strcmp(optarg, "local") == 0) 487 af = AF_LOCAL; 488 else if (strcmp(optarg, "iso") == 0) 489 af = AF_ISO; 490 else if (strcmp(optarg, "atalk") == 0) 491 af = AF_APPLETALK; 492 else if (strcmp(optarg, "mpls") == 0) 493 af = AF_MPLS; 494 else 495 errx(1, "%s: unknown address family", 496 optarg); 497 break; 498 #ifndef SMALL 499 case 'g': 500 gflag = 1; 501 break; 502 #endif 503 case 'h': 504 hflag = 1; 505 break; 506 case 'I': 507 iflag = 1; 508 interface = optarg; 509 break; 510 case 'i': 511 iflag = 1; 512 break; 513 case 'L': 514 Lflag = 1; 515 break; 516 case 'l': 517 lflag = 1; 518 break; 519 case 'M': 520 memf = optarg; 521 break; 522 case 'm': 523 mflag = 1; 524 break; 525 case 'N': 526 nlistf = optarg; 527 break; 528 case 'n': 529 numeric_addr = numeric_port = nflag = 1; 530 break; 531 case 'P': 532 errno = 0; 533 pcbaddr = strtoul(optarg, &cp, 16); 534 if (*cp != '\0' || errno == ERANGE) 535 errx(1, "invalid PCB address %s", 536 optarg); 537 Pflag = 1; 538 break; 539 case 'p': 540 if ((tp = name2protox(optarg)) == NULL) 541 errx(1, "%s: unknown or uninstrumented protocol", 542 optarg); 543 pflag = 1; 544 break; 545 case 'q': 546 qflag = 1; 547 break; 548 case 'r': 549 rflag = 1; 550 break; 551 case 's': 552 ++sflag; 553 break; 554 case 'S': 555 numeric_addr = 1; 556 break; 557 case 't': 558 tflag = 1; 559 break; 560 case 'T': 561 tagflag = 1; 562 break; 563 case 'u': 564 af = AF_LOCAL; 565 break; 566 case 'V': 567 Vflag++; 568 break; 569 case 'v': 570 vflag++; 571 break; 572 case 'w': 573 interval = atoi(optarg); 574 iflag = 1; 575 break; 576 case 'X': 577 force_sysctl = 1; 578 break; 579 case '?': 580 default: 581 usage(); 582 } 583 argv += optind; 584 argc -= optind; 585 586 #define BACKWARD_COMPATIBILITY 587 #ifdef BACKWARD_COMPATIBILITY 588 if (*argv) { 589 if (isdigit((unsigned char)**argv)) { 590 interval = atoi(*argv); 591 if (interval <= 0) 592 usage(); 593 ++argv; 594 iflag = 1; 595 } 596 if (*argv) { 597 nlistf = *argv; 598 if (*++argv) 599 memf = *argv; 600 } 601 } 602 #endif 603 604 prepare(nlistf, memf, tp); 605 606 #ifndef SMALL 607 if (Bflag) { 608 if (sflag) 609 bpf_stats(); 610 else 611 bpf_dump(interface); 612 exit(0); 613 } 614 #endif 615 616 if (mflag) { 617 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 618 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 619 nl[N_MCLPOOL].n_value); 620 exit(0); 621 } 622 if (Pflag) { 623 if (tp == NULL) { 624 /* Default to TCP. */ 625 tp = name2protox("tcp"); 626 } 627 if (tp->pr_dump) 628 (*tp->pr_dump)(pcbaddr); 629 else 630 printf("%s: no PCB dump routine\n", tp->pr_name); 631 exit(0); 632 } 633 if (pflag) { 634 if (iflag && tp->pr_istats) 635 intpr(interval, nl[N_IFNET].n_value, tp->pr_istats); 636 else if (tp->pr_stats) 637 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 638 tp->pr_name); 639 else 640 printf("%s: no stats routine\n", tp->pr_name); 641 exit(0); 642 } 643 if (qflag) { 644 print_softintrq(); 645 exit(0); 646 } 647 /* 648 * Keep file descriptors open to avoid overhead 649 * of open/close on each call to get* routines. 650 */ 651 sethostent(1); 652 setnetent(1); 653 if (iflag) { 654 if (af != AF_UNSPEC) 655 goto protostat; 656 657 intpr(interval, nl[N_IFNET].n_value, NULL); 658 exit(0); 659 } 660 if (rflag) { 661 if (sflag) 662 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 663 else { 664 if (use_sysctl) 665 p_rttables(af); 666 else 667 routepr(nl[N_RTREE].n_value); 668 } 669 exit(0); 670 } 671 #ifndef SMALL 672 if (gflag) { 673 if (sflag) { 674 if (af == AF_INET || af == AF_UNSPEC) 675 mrt_stats(nl[N_MRTPROTO].n_value, 676 nl[N_MRTSTAT].n_value); 677 #ifdef INET6 678 if (af == AF_INET6 || af == AF_UNSPEC) 679 mrt6_stats(nl[N_MRT6PROTO].n_value, 680 nl[N_MRT6STAT].n_value); 681 #endif 682 } 683 else { 684 if (af == AF_INET || af == AF_UNSPEC) 685 mroutepr(nl[N_MRTPROTO].n_value, 686 nl[N_MFCHASHTBL].n_value, 687 nl[N_MFCHASH].n_value, 688 nl[N_VIFTABLE].n_value); 689 #ifdef INET6 690 if (af == AF_INET6 || af == AF_UNSPEC) 691 mroute6pr(nl[N_MRT6PROTO].n_value, 692 nl[N_MF6CTABLE].n_value, 693 nl[N_MIF6TABLE].n_value); 694 #endif 695 } 696 exit(0); 697 } 698 #endif 699 protostat: 700 if (af == AF_INET || af == AF_UNSPEC) { 701 setprotoent(1); 702 setservent(1); 703 /* ugh, this is O(MN) ... why do we do this? */ 704 while ((p = getprotoent()) != NULL) { 705 for (tp = protox; tp->pr_name; tp++) 706 if (strcmp(tp->pr_name, p->p_name) == 0) 707 break; 708 if (tp->pr_name == 0 || tp->pr_wanted == 0) 709 continue; 710 printproto(tp, p->p_name); 711 tp->pr_wanted = 0; 712 } 713 endprotoent(); 714 for (tp = protox; tp->pr_name; tp++) 715 if (tp->pr_wanted) 716 printproto(tp, tp->pr_name); 717 } 718 #ifdef INET6 719 if (af == AF_INET6 || af == AF_UNSPEC) 720 for (tp = ip6protox; tp->pr_name; tp++) 721 printproto(tp, tp->pr_name); 722 #endif 723 if (af == AF_ARP || af == AF_UNSPEC) 724 for (tp = arpprotox; tp->pr_name; tp++) 725 printproto(tp, tp->pr_name); 726 #ifdef IPSEC 727 if (af == PF_KEY || af == AF_UNSPEC) 728 for (tp = pfkeyprotox; tp->pr_name; tp++) 729 printproto(tp, tp->pr_name); 730 #endif 731 #ifndef SMALL 732 if (af == AF_APPLETALK || af == AF_UNSPEC) 733 for (tp = atalkprotox; tp->pr_name; tp++) 734 printproto(tp, tp->pr_name); 735 if (af == AF_ISO || af == AF_UNSPEC) 736 for (tp = isoprotox; tp->pr_name; tp++) 737 printproto(tp, tp->pr_name); 738 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 739 unixpr(nl[N_UNIXSW].n_value); 740 #endif 741 exit(0); 742 } 743 744 /* 745 * Print out protocol statistics or control blocks (per sflag). 746 * If the interface was not specifically requested, and the symbol 747 * is not in the namelist, ignore this one. 748 */ 749 static void 750 printproto(struct protox *tp, const char *name) 751 { 752 void (*pr) __P((u_long, const char *)); 753 u_long off; 754 755 if (sflag) { 756 if (iflag) { 757 if (tp->pr_istats) 758 intpr(interval, nl[N_IFNET].n_value, 759 tp->pr_istats); 760 return; 761 } 762 else { 763 pr = tp->pr_stats; 764 off = nl[tp->pr_sindex].n_value; 765 } 766 } else { 767 pr = tp->pr_cblocks; 768 off = nl[tp->pr_index].n_value; 769 } 770 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 771 (*pr)(off, name); 772 } 773 } 774 775 /* 776 * Print softintrq status. 777 */ 778 void 779 print_softintrq(void) 780 { 781 struct ifqueue intrq, *ifq = &intrq; 782 const struct softintrq *siq; 783 u_long off; 784 785 for (siq = softintrq; siq->siq_name != NULL; siq++) { 786 off = nl[siq->siq_index].n_value; 787 if (off == 0) 788 continue; 789 790 kread(off, (char *)ifq, sizeof(*ifq)); 791 printf("%s:\n", siq->siq_name); 792 printf("\tqueue length: %d\n", ifq->ifq_len); 793 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 794 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 795 } 796 } 797 798 /* 799 * Read kernel memory, return 0 on success. 800 */ 801 int 802 kread(u_long addr, char *buf, int size) 803 { 804 805 if (kvm_read(kvmd, addr, buf, size) != size) { 806 warnx("%s", kvm_geterr(kvmd)); 807 return (-1); 808 } 809 return (0); 810 } 811 812 const char * 813 plural(int n) 814 { 815 816 return (n != 1 ? "s" : ""); 817 } 818 819 const char * 820 plurales(int n) 821 { 822 823 return (n != 1 ? "es" : ""); 824 } 825 826 int 827 get_hardticks(void) 828 { 829 int hardticks; 830 831 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 832 sizeof(hardticks)); 833 return (hardticks); 834 } 835 836 /* 837 * Find the protox for the given "well-known" name. 838 */ 839 static struct protox * 840 knownname(const char *name) 841 { 842 struct protox **tpp, *tp; 843 844 for (tpp = protoprotox; *tpp; tpp++) 845 for (tp = *tpp; tp->pr_name; tp++) 846 if (strcmp(tp->pr_name, name) == 0) 847 return (tp); 848 return (NULL); 849 } 850 851 /* 852 * Find the protox corresponding to name. 853 */ 854 static struct protox * 855 name2protox(const char *name) 856 { 857 struct protox *tp; 858 char **alias; /* alias from p->aliases */ 859 struct protoent *p; 860 861 /* 862 * Try to find the name in the list of "well-known" names. If that 863 * fails, check if name is an alias for an Internet protocol. 864 */ 865 if ((tp = knownname(name)) != NULL) 866 return (tp); 867 868 setprotoent(1); /* make protocol lookup cheaper */ 869 while ((p = getprotoent()) != NULL) { 870 /* assert: name not same as p->name */ 871 for (alias = p->p_aliases; *alias; alias++) 872 if (strcmp(name, *alias) == 0) { 873 endprotoent(); 874 return (knownname(p->p_name)); 875 } 876 } 877 endprotoent(); 878 return (NULL); 879 } 880 881 static void 882 usage(void) 883 { 884 const char *progname = getprogname(); 885 886 (void)fprintf(stderr, 887 "usage: %s [-Aan] [-f address_family] [-M core] [-N system]\n", progname); 888 (void)fprintf(stderr, 889 " %s [-bdgiLmnqrsSv] [-f address_family] [-M core] [-N system]\n", 890 progname); 891 (void)fprintf(stderr, 892 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 893 (void)fprintf(stderr, 894 " %s [-p protocol] [-M core] [-N system]\n", progname); 895 (void)fprintf(stderr, 896 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 897 (void)fprintf(stderr, 898 " %s [-p protocol] [-i] [-I Interface] \n", progname); 899 (void)fprintf(stderr, 900 " %s [-s] [-f address_family] [-i] [-I Interface]\n", progname); 901 (void)fprintf(stderr, 902 " %s [-s] [-B] [-I interface]\n", progname); 903 exit(1); 904 } 905
Indexes created Thu Sep 25 08:09:54 GMT 2025