main.c revision 1.94
1 /* $NetBSD: main.c,v 1.94 2014/11/07 12:42:27 christos 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 1.94 2014/11/07 12:42:27 christos 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 "rtutil.h" 68 #include "prog_ops.h" 69 70 struct nlist nl[] = { 71 #define N_MBSTAT 0 72 { "_mbstat", 0, 0, 0, 0 }, 73 #define N_IPSTAT 1 74 { "_ipstat", 0, 0, 0, 0 }, /* not available via kvm */ 75 #define N_TCBTABLE 2 76 { "_tcbtable", 0, 0, 0, 0 }, 77 #define N_TCPSTAT 3 78 { "_tcpstat", 0, 0, 0, 0 }, /* not available via kvm */ 79 #define N_UDBTABLE 4 80 { "_udbtable", 0, 0, 0, 0 }, 81 #define N_UDPSTAT 5 82 { "_udpstat", 0, 0, 0, 0 }, /* not available via kvm */ 83 #define N_IFNET_LIST 6 84 { "_ifnet_list", 0, 0, 0, 0 }, 85 #define N_ICMPSTAT 7 86 { "_icmpstat", 0, 0, 0, 0 }, /* not available via kvm */ 87 #define N_RTSTAT 8 88 { "_rtstat", 0, 0, 0, 0 }, 89 #define N_UNIXSW 9 90 { "_unixsw", 0, 0, 0, 0 }, 91 #define N_RTREE 10 92 { "_rt_tables", 0, 0, 0, 0 }, 93 #define N_NFILE 11 94 { "_nfile", 0, 0, 0, 0 }, 95 #define N_IGMPSTAT 12 96 { "_igmpstat", 0, 0, 0, 0 }, /* not available via kvm */ 97 #define N_MRTPROTO 13 98 { "_ip_mrtproto", 0, 0, 0, 0 }, 99 #define N_MRTSTAT 14 100 { "_mrtstat", 0, 0, 0, 0 }, 101 #define N_MFCHASHTBL 15 102 { "_mfchashtbl", 0, 0, 0, 0 }, 103 #define N_MFCHASH 16 104 { "_mfchash", 0, 0, 0, 0 }, 105 #define N_VIFTABLE 17 106 { "_viftable", 0, 0, 0, 0 }, 107 #define N_MSIZE 18 108 { "_msize", 0, 0, 0, 0 }, 109 #define N_MCLBYTES 19 110 { "_mclbytes", 0, 0, 0, 0 }, 111 #define N_DDPSTAT 20 112 { "_ddpstat", 0, 0, 0, 0 }, /* not available via kvm */ 113 #define N_DDPCB 21 114 { "_ddpcb", 0, 0, 0, 0 }, 115 #define N_MBPOOL 22 116 { "_mbpool", 0, 0, 0, 0 }, 117 #define N_MCLPOOL 23 118 { "_mclpool", 0, 0, 0, 0 }, 119 #define N_IP6STAT 24 120 { "_ip6stat", 0, 0, 0, 0 }, /* not available via kvm */ 121 #define N_TCP6STAT 25 122 { "_tcp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 123 #define N_UDP6STAT 26 124 { "_udp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 125 #define N_ICMP6STAT 27 126 { "_icmp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 127 #define N_IPSECSTAT 28 128 { "_ipsecstat", 0, 0, 0, 0 }, /* not available via kvm */ 129 #define N_IPSEC6STAT 29 130 { "_ipsec6stat", 0, 0, 0, 0 }, /* not available via kvm */ 131 #define N_PIM6STAT 30 132 { "_pim6stat", 0, 0, 0, 0 }, /* not available via kvm */ 133 #define N_MRT6PROTO 31 134 { "_ip6_mrtproto", 0, 0, 0, 0 }, 135 #define N_MRT6STAT 32 136 { "_mrt6stat", 0, 0, 0, 0 }, 137 #define N_MF6CTABLE 33 138 { "_mf6ctable", 0, 0, 0, 0 }, 139 #define N_MIF6TABLE 34 140 { "_mif6table", 0, 0, 0, 0 }, 141 #define N_PFKEYSTAT 35 142 { "_pfkeystat", 0, 0, 0, 0 }, /* not available via kvm */ 143 #define N_ARPSTAT 36 144 { "_arpstat", 0, 0, 0, 0 }, /* not available via kvm */ 145 #define N_RIP6STAT 37 146 { "_rip6stat", 0, 0, 0, 0 }, /* not available via kvm */ 147 #define N_ARPINTRQ 38 148 { "_arpintrq", 0, 0, 0, 0 }, 149 #define N_IPINTRQ 39 150 { "_ipintrq", 0, 0, 0, 0 }, 151 #define N_IP6INTRQ 40 152 { "_ip6intrq", 0, 0, 0, 0 }, 153 #define N_ATINTRQ1 41 154 { "_atintrq1", 0, 0, 0, 0 }, 155 #define N_ATINTRQ2 42 156 { "_atintrq2", 0, 0, 0, 0 }, 157 #define N_NSINTRQ 43 158 { "_nsintrq", 0, 0, 0, 0 }, 159 #define N_LLCINTRQ 44 160 { "_llcintrq", 0, 0, 0, 0 }, 161 #define N_HDINTRQ 45 162 { "_hdintrq", 0, 0, 0, 0 }, 163 #define N_NATMINTRQ 46 164 { "_natmintrq", 0, 0, 0, 0 }, 165 #define N_PPPOEDISCINQ 47 166 { "_ppoediscinq", 0, 0, 0, 0 }, 167 #define N_PPPOEINQ 48 168 { "_ppoeinq", 0, 0, 0, 0 }, 169 #define N_PKINTRQ 49 170 { "_pkintrq", 0, 0, 0, 0 }, 171 #define N_HARDCLOCK_TICKS 50 172 { "_hardclock_ticks", 0, 0, 0, 0 }, 173 #define N_PIMSTAT 51 174 { "_pimstat", 0, 0, 0, 0 }, 175 #define N_CARPSTAT 52 176 { "_carpstats", 0, 0, 0, 0 }, /* not available via kvm */ 177 #define N_PFSYNCSTAT 53 178 { "_pfsyncstats", 0, 0, 0, 0}, /* not available via kvm */ 179 { "", 0, 0, 0, 0 }, 180 }; 181 182 struct protox { 183 u_char pr_index; /* index into nlist of cb head */ 184 u_char pr_sindex; /* index into nlist of stat block */ 185 u_char pr_wanted; /* 1 if wanted, 0 otherwise */ 186 void (*pr_cblocks) /* control blocks printing routine */ 187 __P((u_long, const char *)); 188 void (*pr_stats) /* statistics printing routine */ 189 __P((u_long, const char *)); 190 void (*pr_istats) 191 __P((const char *)); /* per/if statistics printing routine */ 192 void (*pr_dump) /* PCB state dump routine */ 193 __P((u_long, const char *, u_long)); 194 const char *pr_name; /* well-known name */ 195 } protox[] = { 196 { N_TCBTABLE, N_TCPSTAT, 1, protopr, 197 tcp_stats, NULL, tcp_dump, "tcp" }, 198 { N_UDBTABLE, N_UDPSTAT, 1, protopr, 199 udp_stats, NULL, 0, "udp" }, 200 { -1, N_IPSTAT, 1, 0, 201 ip_stats, NULL, 0, "ip" }, 202 { -1, N_ICMPSTAT, 1, 0, 203 icmp_stats, NULL, 0, "icmp" }, 204 { -1, N_IGMPSTAT, 1, 0, 205 igmp_stats, NULL, 0, "igmp" }, 206 { -1, N_CARPSTAT, 1, 0, 207 carp_stats, NULL, 0, "carp" }, 208 #ifdef IPSEC 209 { -1, N_IPSECSTAT, 1, 0, 210 fast_ipsec_stats, NULL, 0, "ipsec" }, 211 #endif 212 { -1, N_PIMSTAT, 1, 0, 213 pim_stats, NULL, 0, "pim" }, 214 { -1, N_PFSYNCSTAT, 1, 0, 215 pfsync_stats, NULL, 0, "pfsync" }, 216 { -1, -1, 0, 0, 217 0, NULL, 0, 0 } 218 }; 219 220 #ifdef INET6 221 struct protox ip6protox[] = { 222 { -1, N_IP6STAT, 1, 0, 223 ip6_stats, ip6_ifstats, 0, "ip6" }, 224 { -1, N_ICMP6STAT, 1, 0, 225 icmp6_stats, icmp6_ifstats, 0, "icmp6" }, 226 #ifdef TCP6 227 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 228 tcp6_stats, NULL, tcp6_dump, "tcp6" }, 229 #else 230 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 231 tcp_stats, NULL, tcp6_dump, "tcp6" }, 232 #endif 233 { N_UDBTABLE, N_UDP6STAT, 1, ip6protopr, 234 udp6_stats, NULL, 0, "udp6" }, 235 #ifdef IPSEC 236 { -1, N_IPSEC6STAT, 1, 0, 237 fast_ipsec_stats, NULL, 0, "ipsec6" }, 238 #endif 239 { -1, N_PIM6STAT, 1, 0, 240 pim6_stats, NULL, 0, "pim6" }, 241 { -1, N_RIP6STAT, 1, 0, 242 rip6_stats, NULL, 0, "rip6" }, 243 { -1, -1, 0, 0, 244 0, NULL, 0, 0 } 245 }; 246 #endif 247 248 struct protox arpprotox[] = { 249 { -1, N_ARPSTAT, 1, 0, 250 arp_stats, NULL, 0, "arp" }, 251 { -1, -1, 0, 0, 252 0, NULL, 0, 0 } 253 }; 254 255 #ifdef IPSEC 256 struct protox pfkeyprotox[] = { 257 { -1, N_PFKEYSTAT, 1, 0, 258 pfkey_stats, NULL, 0, "pfkey" }, 259 { -1, -1, 0, 0, 260 0, NULL, 0, 0 } 261 }; 262 #endif 263 264 #ifndef SMALL 265 struct protox atalkprotox[] = { 266 { N_DDPCB, N_DDPSTAT, 1, atalkprotopr, 267 ddp_stats, NULL, 0, "ddp" }, 268 { -1, -1, 0, 0, 269 0, NULL, 0, NULL } 270 }; 271 #endif 272 273 struct protox *protoprotox[] = { protox, 274 #ifdef INET6 275 ip6protox, 276 #endif 277 arpprotox, 278 #ifdef IPSEC 279 pfkeyprotox, 280 #endif 281 #ifndef SMALL 282 atalkprotox, 283 #endif 284 NULL }; 285 286 const struct softintrq { 287 const char *siq_name; 288 int siq_index; 289 } softintrq[] = { 290 { "arpintrq", N_ARPINTRQ }, 291 { "ipintrq", N_IPINTRQ }, 292 { "ip6intrq", N_IP6INTRQ }, 293 { "atintrq1", N_ATINTRQ1 }, 294 { "atintrq2", N_ATINTRQ2 }, 295 { "llcintrq", N_LLCINTRQ }, 296 { "hdintrq", N_HDINTRQ }, 297 { "natmintrq", N_NATMINTRQ }, 298 { "ppoediscinq", N_PPPOEDISCINQ }, 299 { "ppoeinq", N_PPPOEINQ }, 300 { "pkintrq", N_PKINTRQ }, 301 { NULL, -1 }, 302 }; 303 304 int main __P((int, char *[])); 305 static void printproto __P((struct protox *, const char *)); 306 static void print_softintrq __P((void)); 307 __dead static void usage(void); 308 static struct protox *name2protox __P((const char *)); 309 static struct protox *knownname __P((const char *)); 310 static void prepare(const char *, const char *, struct protox *tp); 311 static kvm_t *prepare_kvmd(const char *, const char *, char *); 312 313 static kvm_t *kvmd = NULL; 314 gid_t egid; 315 int interval; /* repeat interval for i/f stats */ 316 static const char *nlistf = NULL, *memf = NULL; 317 318 kvm_t * 319 get_kvmd(void) 320 { 321 char buf[_POSIX2_LINE_MAX]; 322 323 if (kvmd != NULL) 324 return kvmd; 325 if ((kvmd = prepare_kvmd(nlistf, memf, buf)) == NULL) 326 errx(1, "kvm error: %s", buf); 327 return kvmd; 328 } 329 330 static kvm_t * 331 prepare_kvmd(const char *nf, const char *mf, char *errbuf) 332 { 333 kvm_t *k; 334 335 (void)setegid(egid); 336 k = kvm_openfiles(nf, mf, NULL, O_RDONLY, errbuf); 337 (void)setgid(getgid()); 338 return k; 339 } 340 341 void 342 prepare(const char *nf, const char *mf, struct protox *tp) 343 { 344 char buf[_POSIX2_LINE_MAX]; 345 /* 346 * Try to figure out if we can use sysctl or not. 347 */ 348 if (nf != NULL || mf != NULL) { 349 /* Of course, we can't use sysctl with dumps. */ 350 if (force_sysctl) 351 errx(EXIT_FAILURE, "can't use sysctl with dumps"); 352 353 /* 354 * If we have -M or -N, we're not dealing with live memory 355 * or want to use kvm interface explicitly. It is sometimes 356 * useful to dig inside of kernel without extending 357 * sysctl interface (i.e., without rebuilding kernel). 358 */ 359 use_sysctl = 0; 360 } else if (qflag || 361 iflag || 362 #ifndef SMALL 363 gflag || 364 #endif 365 (pflag && tp->pr_sindex == N_PIMSTAT) || 366 Pflag) { 367 /* These flags are not yet supported via sysctl(3). */ 368 use_sysctl = 0; 369 } else { 370 /* We can use sysctl(3). */ 371 use_sysctl = 1; 372 } 373 374 if (force_sysctl && !use_sysctl) { 375 /* Let the user know what's about to happen. */ 376 warnx("forcing sysctl usage even though it might not be "\ 377 "supported"); 378 use_sysctl = 1; 379 } 380 381 kvmd = prepare_kvmd(nf, mf, buf); 382 383 if (!use_sysctl) { 384 385 if (kvmd == NULL) 386 errx(1, "kvm error: %s", buf); 387 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 388 if (nf) 389 errx(1, "%s: no namelist", nf); 390 else 391 errx(1, "no namelist"); 392 } 393 } else 394 (void)setgid(getgid()); 395 } 396 397 int 398 main(int argc, char *argv[]) 399 { 400 struct protoent *p; 401 struct protox *tp; /* for printing cblocks & stats */ 402 int ch; 403 char *cp; 404 char *afname, *afnames; 405 u_long pcbaddr; 406 407 if (prog_init) { 408 if (prog_init() == -1) 409 err(1, "init failed"); 410 force_sysctl = 1; /* cheap trick */ 411 } 412 413 egid = getegid(); 414 (void)setegid(getgid()); 415 tp = NULL; 416 af = AF_UNSPEC; 417 afnames = NULL; 418 pcbaddr = 0; 419 420 while ((ch = getopt(argc, argv, 421 "AabBdf:ghI:LliM:mN:nP:p:qrsStTuVvw:X")) != -1) 422 switch (ch) { 423 case 'A': 424 Aflag = RT_AFLAG; 425 break; 426 case 'a': 427 aflag = 1; 428 break; 429 case 'b': 430 bflag = 1; 431 break; 432 case 'B': 433 Bflag = 1; 434 break; 435 case 'd': 436 dflag = 1; 437 break; 438 case 'f': 439 afnames = optarg; 440 break; 441 #ifndef SMALL 442 case 'g': 443 gflag = 1; 444 break; 445 #endif 446 case 'h': 447 hflag = 1; 448 break; 449 case 'I': 450 iflag = 1; 451 interface = optarg; 452 break; 453 case 'i': 454 iflag = 1; 455 break; 456 case 'L': 457 Lflag = 1; 458 break; 459 case 'l': 460 lflag = 1; 461 break; 462 case 'M': 463 memf = optarg; 464 break; 465 case 'm': 466 mflag = 1; 467 break; 468 case 'N': 469 nlistf = optarg; 470 break; 471 case 'n': 472 numeric_addr = numeric_port = nflag = RT_NFLAG; 473 break; 474 case 'P': 475 errno = 0; 476 pcbaddr = strtoul(optarg, &cp, 16); 477 if (*cp != '\0' || errno == ERANGE) 478 errx(1, "invalid PCB address %s", 479 optarg); 480 Pflag = 1; 481 break; 482 case 'p': 483 if ((tp = name2protox(optarg)) == NULL) 484 errx(1, "%s: unknown or uninstrumented protocol", 485 optarg); 486 pflag = 1; 487 break; 488 case 'q': 489 qflag = 1; 490 break; 491 case 'r': 492 rflag = 1; 493 break; 494 case 's': 495 ++sflag; 496 break; 497 case 'S': 498 numeric_addr = 1; 499 break; 500 case 't': 501 tflag = 1; 502 break; 503 case 'T': 504 tagflag = RT_TFLAG; 505 break; 506 case 'u': 507 af = AF_LOCAL; 508 break; 509 case 'V': 510 Vflag++; 511 break; 512 case 'v': 513 vflag = RT_VFLAG; 514 break; 515 case 'w': 516 interval = atoi(optarg); 517 iflag = 1; 518 break; 519 case 'X': 520 force_sysctl = 1; 521 break; 522 case '?': 523 default: 524 usage(); 525 } 526 argv += optind; 527 argc -= optind; 528 529 #define BACKWARD_COMPATIBILITY 530 #ifdef BACKWARD_COMPATIBILITY 531 if (*argv) { 532 if (isdigit((unsigned char)**argv)) { 533 interval = atoi(*argv); 534 if (interval <= 0) 535 usage(); 536 ++argv; 537 iflag = 1; 538 } 539 if (*argv) { 540 nlistf = *argv; 541 if (*++argv) 542 memf = *argv; 543 } 544 } 545 #endif 546 547 prepare(nlistf, memf, tp); 548 549 #ifndef SMALL 550 if (Bflag) { 551 if (sflag) 552 bpf_stats(); 553 else 554 bpf_dump(interface); 555 exit(0); 556 } 557 #endif 558 559 if (mflag) { 560 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 561 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 562 nl[N_MCLPOOL].n_value); 563 exit(0); 564 } 565 if (Pflag) { 566 if (tp == NULL) { 567 /* Default to TCP. */ 568 tp = name2protox("tcp"); 569 } 570 if (tp->pr_dump) 571 (*tp->pr_dump)(nl[tp->pr_index].n_value, tp->pr_name, 572 pcbaddr); 573 else 574 printf("%s: no PCB dump routine\n", tp->pr_name); 575 exit(0); 576 } 577 if (pflag) { 578 if (iflag && tp->pr_istats) 579 intpr(interval, nl[N_IFNET_LIST].n_value, tp->pr_istats); 580 else if (tp->pr_stats) 581 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 582 tp->pr_name); 583 else 584 printf("%s: no stats routine\n", tp->pr_name); 585 exit(0); 586 } 587 if (qflag) { 588 print_softintrq(); 589 exit(0); 590 } 591 /* 592 * Keep file descriptors open to avoid overhead 593 * of open/close on each call to get* routines. 594 */ 595 sethostent(1); 596 setnetent(1); 597 /* 598 * If -f was used afnames != NULL, loop over the address families. 599 * Otherwise do this at least once (with af == AF_UNSPEC). 600 */ 601 afname = NULL; 602 do { 603 if (afnames != NULL) { 604 afname = strsep(&afnames, ","); 605 if (afname == NULL) 606 break; /* Exit early */ 607 if (strcmp(afname, "inet") == 0) 608 af = AF_INET; 609 else if (strcmp(afname, "inet6") == 0) 610 af = AF_INET6; 611 else if (strcmp(afname, "arp") == 0) 612 af = AF_ARP; 613 else if (strcmp(afname, "pfkey") == 0) 614 af = PF_KEY; 615 else if (strcmp(afname, "unix") == 0 616 || strcmp(afname, "local") == 0) 617 af = AF_LOCAL; 618 else if (strcmp(afname, "atalk") == 0) 619 af = AF_APPLETALK; 620 else if (strcmp(afname, "mpls") == 0) 621 af = AF_MPLS; 622 else { 623 warnx("%s: unknown address family", 624 afname); 625 continue; 626 } 627 } 628 629 if (iflag) { 630 if (af != AF_UNSPEC) 631 goto protostat; 632 633 intpr(interval, nl[N_IFNET_LIST].n_value, NULL); 634 break; 635 } 636 if (rflag) { 637 if (sflag) 638 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 639 else { 640 if (use_sysctl) 641 p_rttables(af, 642 nflag|tagflag|vflag, 0, ~0); 643 else 644 routepr(nl[N_RTREE].n_value); 645 } 646 break; 647 } 648 #ifndef SMALL 649 if (gflag) { 650 if (sflag) { 651 if (af == AF_INET || af == AF_UNSPEC) 652 mrt_stats(nl[N_MRTPROTO].n_value, 653 nl[N_MRTSTAT].n_value); 654 #ifdef INET6 655 if (af == AF_INET6 || af == AF_UNSPEC) 656 mrt6_stats(nl[N_MRT6PROTO].n_value, 657 nl[N_MRT6STAT].n_value); 658 #endif 659 } 660 else { 661 if (af == AF_INET || af == AF_UNSPEC) 662 mroutepr(nl[N_MRTPROTO].n_value, 663 nl[N_MFCHASHTBL].n_value, 664 nl[N_MFCHASH].n_value, 665 nl[N_VIFTABLE].n_value); 666 #ifdef INET6 667 if (af == AF_INET6 || af == AF_UNSPEC) 668 mroute6pr(nl[N_MRT6PROTO].n_value, 669 nl[N_MF6CTABLE].n_value, 670 nl[N_MIF6TABLE].n_value); 671 #endif 672 } 673 break; 674 } 675 #endif 676 protostat: 677 if (af == AF_INET || af == AF_UNSPEC) { 678 setprotoent(1); 679 setservent(1); 680 /* ugh, this is O(MN) ... why do we do this? */ 681 while ((p = getprotoent()) != NULL) { 682 for (tp = protox; tp->pr_name; tp++) 683 if (strcmp(tp->pr_name, p->p_name) == 0) 684 break; 685 if (tp->pr_name == 0 || tp->pr_wanted == 0) 686 continue; 687 printproto(tp, p->p_name); 688 tp->pr_wanted = 0; 689 } 690 endprotoent(); 691 for (tp = protox; tp->pr_name; tp++) 692 if (tp->pr_wanted) 693 printproto(tp, tp->pr_name); 694 } 695 #ifdef INET6 696 if (af == AF_INET6 || af == AF_UNSPEC) 697 for (tp = ip6protox; tp->pr_name; tp++) 698 printproto(tp, tp->pr_name); 699 #endif 700 if (af == AF_ARP || af == AF_UNSPEC) 701 for (tp = arpprotox; tp->pr_name; tp++) 702 printproto(tp, tp->pr_name); 703 #ifdef IPSEC 704 if (af == PF_KEY || af == AF_UNSPEC) 705 for (tp = pfkeyprotox; tp->pr_name; tp++) 706 printproto(tp, tp->pr_name); 707 #endif 708 #ifndef SMALL 709 if (af == AF_APPLETALK || af == AF_UNSPEC) 710 for (tp = atalkprotox; tp->pr_name; tp++) 711 printproto(tp, tp->pr_name); 712 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 713 unixpr(nl[N_UNIXSW].n_value); 714 #endif 715 } while (afnames != NULL && afname != NULL); 716 exit(0); 717 } 718 719 /* 720 * Print out protocol statistics or control blocks (per sflag). 721 * If the interface was not specifically requested, and the symbol 722 * is not in the namelist, ignore this one. 723 */ 724 static void 725 printproto(struct protox *tp, const char *name) 726 { 727 void (*pr) __P((u_long, const char *)); 728 u_long off; 729 730 if (sflag) { 731 if (iflag) { 732 if (tp->pr_istats) 733 intpr(interval, nl[N_IFNET_LIST].n_value, 734 tp->pr_istats); 735 return; 736 } 737 else { 738 pr = tp->pr_stats; 739 off = nl[tp->pr_sindex].n_value; 740 } 741 } else { 742 pr = tp->pr_cblocks; 743 off = nl[tp->pr_index].n_value; 744 } 745 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 746 (*pr)(off, name); 747 } 748 } 749 750 /* 751 * Print softintrq status. 752 */ 753 void 754 print_softintrq(void) 755 { 756 struct ifqueue intrq, *ifq = &intrq; 757 const struct softintrq *siq; 758 u_long off; 759 760 for (siq = softintrq; siq->siq_name != NULL; siq++) { 761 off = nl[siq->siq_index].n_value; 762 if (off == 0) 763 continue; 764 765 kread(off, (char *)ifq, sizeof(*ifq)); 766 printf("%s:\n", siq->siq_name); 767 printf("\tqueue length: %d\n", ifq->ifq_len); 768 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 769 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 770 } 771 } 772 773 /* 774 * Read kernel memory, return 0 on success. 775 */ 776 int 777 kread(u_long addr, char *buf, int size) 778 { 779 780 if (kvm_read(kvmd, addr, buf, size) != size) { 781 warnx("%s", kvm_geterr(kvmd)); 782 return (-1); 783 } 784 return (0); 785 } 786 787 const char * 788 plural(int n) 789 { 790 791 return (n != 1 ? "s" : ""); 792 } 793 794 const char * 795 plurales(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(const char *name) 816 { 817 struct protox **tpp, *tp; 818 819 for (tpp = protoprotox; *tpp; tpp++) 820 for (tp = *tpp; tp->pr_name; tp++) 821 if (strcmp(tp->pr_name, name) == 0) 822 return (tp); 823 return (NULL); 824 } 825 826 /* 827 * Find the protox corresponding to name. 828 */ 829 static struct protox * 830 name2protox(const char *name) 831 { 832 struct protox *tp; 833 char **alias; /* alias from p->aliases */ 834 struct protoent *p; 835 836 /* 837 * Try to find the name in the list of "well-known" names. If that 838 * fails, check if name is an alias for an Internet protocol. 839 */ 840 if ((tp = knownname(name)) != NULL) 841 return (tp); 842 843 setprotoent(1); /* make protocol lookup cheaper */ 844 while ((p = getprotoent()) != NULL) { 845 /* assert: name not same as p->name */ 846 for (alias = p->p_aliases; *alias; alias++) 847 if (strcmp(name, *alias) == 0) { 848 endprotoent(); 849 return (knownname(p->p_name)); 850 } 851 } 852 endprotoent(); 853 return (NULL); 854 } 855 856 static void 857 usage(void) 858 { 859 const char *progname = getprogname(); 860 861 (void)fprintf(stderr, 862 "usage: %s [-Aan] [-f address_family[,family ...]] [-M core] [-N system]\n", progname); 863 (void)fprintf(stderr, 864 " %s [-bdgiLmnqrsSv] [-f address_family[,family ...]] [-M core] [-N system]\n", 865 progname); 866 (void)fprintf(stderr, 867 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 868 (void)fprintf(stderr, 869 " %s [-p protocol] [-M core] [-N system]\n", progname); 870 (void)fprintf(stderr, 871 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 872 (void)fprintf(stderr, 873 " %s [-p protocol] [-i] [-I Interface] \n", progname); 874 (void)fprintf(stderr, 875 " %s [-s] [-f address_family[,family ...]] [-i] [-I Interface]\n", progname); 876 (void)fprintf(stderr, 877 " %s [-s] [-B] [-I interface]\n", progname); 878 exit(1); 879 } 880
Indexes created Thu Sep 25 15:09:46 GMT 2025