main.c revision 1.98
1 /* $NetBSD: main.c,v 1.98 2016/07/14 19:39:41 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 1.98 2016/07/14 19:39:41 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 (u_long, const char *); 188 void (*pr_stats) /* statistics printing routine */ 189 (u_long, const char *); 190 void (*pr_istats) 191 (const char *); /* per/if statistics printing routine */ 192 void (*pr_dump) /* PCB state dump routine */ 193 (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 static void printproto(struct protox *, const char *); 305 static void print_softintrq(void); 306 __dead static void usage(void); 307 static struct protox *name2protox(const char *); 308 static struct protox *knownname(const char *); 309 static void prepare(const char *, const char *, struct protox *tp); 310 static kvm_t *prepare_kvmd(const char *, const char *, char *); 311 312 static kvm_t *kvmd = NULL; 313 gid_t egid; 314 int interval; /* repeat interval for i/f stats */ 315 static const char *nlistf = NULL, *memf = NULL; 316 317 kvm_t * 318 get_kvmd(void) 319 { 320 char buf[_POSIX2_LINE_MAX]; 321 322 if (kvmd != NULL) 323 return kvmd; 324 if ((kvmd = prepare_kvmd(nlistf, memf, buf)) == NULL) 325 errx(1, "kvm error: %s", buf); 326 return kvmd; 327 } 328 329 static kvm_t * 330 prepare_kvmd(const char *nf, const char *mf, char *errbuf) 331 { 332 kvm_t *k; 333 334 (void)setegid(egid); 335 k = kvm_openfiles(nf, mf, NULL, O_RDONLY, errbuf); 336 (void)setgid(getgid()); 337 return k; 338 } 339 340 void 341 prepare(const char *nf, const char *mf, struct protox *tp) 342 { 343 char buf[_POSIX2_LINE_MAX]; 344 /* 345 * Try to figure out if we can use sysctl or not. 346 */ 347 if (nf != NULL || mf != NULL) { 348 /* Of course, we can't use sysctl with dumps. */ 349 if (force_sysctl) 350 errx(EXIT_FAILURE, "can't use sysctl with dumps"); 351 352 /* 353 * If we have -M or -N, we're not dealing with live memory 354 * or want to use kvm interface explicitly. It is sometimes 355 * useful to dig inside of kernel without extending 356 * sysctl interface (i.e., without rebuilding kernel). 357 */ 358 use_sysctl = 0; 359 } else if (qflag || 360 #ifndef SMALL 361 gflag || 362 #endif 363 (pflag && tp->pr_sindex == N_PIMSTAT) || 364 Pflag) { 365 /* These flags are not yet supported via sysctl(3). */ 366 use_sysctl = 0; 367 } else { 368 /* We can use sysctl(3). */ 369 use_sysctl = 1; 370 } 371 372 if (force_sysctl && !use_sysctl) { 373 /* Let the user know what's about to happen. */ 374 warnx("forcing sysctl usage even though it might not be "\ 375 "supported"); 376 use_sysctl = 1; 377 } 378 379 kvmd = prepare_kvmd(nf, mf, buf); 380 381 if (!use_sysctl) { 382 383 if (kvmd == NULL) 384 errx(1, "kvm error: %s", buf); 385 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 386 if (nf) 387 errx(1, "%s: no namelist", nf); 388 else 389 errx(1, "no namelist"); 390 } 391 } else 392 (void)setgid(getgid()); 393 } 394 395 int 396 main(int argc, char *argv[]) 397 { 398 struct protoent *p; 399 struct protox *tp; /* for printing cblocks & stats */ 400 int ch; 401 char *cp; 402 char *afname, *afnames; 403 u_long pcbaddr; 404 405 if (prog_init) { 406 if (prog_init() == -1) 407 err(1, "init failed"); 408 force_sysctl = 1; /* cheap trick */ 409 } 410 411 egid = getegid(); 412 (void)setegid(getgid()); 413 tp = NULL; 414 af = AF_UNSPEC; 415 afnames = NULL; 416 pcbaddr = 0; 417 418 while ((ch = getopt(argc, argv, 419 "AabBdf:ghI:LliM:mN:nP:p:qrsStTuVvw:X")) != -1) 420 switch (ch) { 421 case 'A': 422 Aflag = RT_AFLAG; 423 break; 424 case 'a': 425 aflag = 1; 426 break; 427 case 'b': 428 bflag = 1; 429 break; 430 case 'B': 431 Bflag = 1; 432 break; 433 case 'd': 434 dflag = 1; 435 break; 436 case 'f': 437 afnames = optarg; 438 break; 439 #ifndef SMALL 440 case 'g': 441 gflag = 1; 442 break; 443 #endif 444 case 'h': 445 hflag = 1; 446 break; 447 case 'I': 448 iflag = 1; 449 interface = optarg; 450 break; 451 case 'i': 452 iflag = 1; 453 break; 454 case 'L': 455 Lflag = RT_LFLAG; 456 break; 457 case 'l': 458 lflag = 1; 459 break; 460 case 'M': 461 memf = optarg; 462 break; 463 case 'm': 464 mflag = 1; 465 break; 466 case 'N': 467 nlistf = optarg; 468 break; 469 case 'n': 470 numeric_addr = numeric_port = nflag = RT_NFLAG; 471 break; 472 case 'P': 473 errno = 0; 474 pcbaddr = strtoul(optarg, &cp, 16); 475 if (*cp != '\0' || errno == ERANGE) 476 errx(1, "invalid PCB address %s", 477 optarg); 478 Pflag = 1; 479 break; 480 case 'p': 481 if ((tp = name2protox(optarg)) == NULL) 482 errx(1, "%s: unknown or uninstrumented protocol", 483 optarg); 484 pflag = 1; 485 break; 486 case 'q': 487 qflag = 1; 488 break; 489 case 'r': 490 rflag = 1; 491 break; 492 case 's': 493 ++sflag; 494 break; 495 case 'S': 496 numeric_addr = 1; 497 break; 498 case 't': 499 tflag = 1; 500 break; 501 case 'T': 502 tagflag = RT_TFLAG; 503 break; 504 case 'u': 505 af = AF_LOCAL; 506 break; 507 case 'V': 508 Vflag++; 509 break; 510 case 'v': 511 vflag = RT_VFLAG; 512 break; 513 case 'w': 514 interval = atoi(optarg); 515 iflag = 1; 516 break; 517 case 'X': 518 force_sysctl = 1; 519 break; 520 case '?': 521 default: 522 usage(); 523 } 524 argv += optind; 525 argc -= optind; 526 527 #define BACKWARD_COMPATIBILITY 528 #ifdef BACKWARD_COMPATIBILITY 529 if (*argv) { 530 if (isdigit((unsigned char)**argv)) { 531 interval = atoi(*argv); 532 if (interval <= 0) 533 usage(); 534 ++argv; 535 iflag = 1; 536 } 537 if (*argv) { 538 nlistf = *argv; 539 if (*++argv) 540 memf = *argv; 541 } 542 } 543 #endif 544 545 prepare(nlistf, memf, tp); 546 547 #ifndef SMALL 548 if (Bflag) { 549 if (sflag) 550 bpf_stats(); 551 else 552 bpf_dump(interface); 553 exit(0); 554 } 555 #endif 556 557 if (mflag) { 558 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 559 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 560 nl[N_MCLPOOL].n_value); 561 exit(0); 562 } 563 if (Pflag) { 564 if (tp == NULL) { 565 /* Default to TCP. */ 566 tp = name2protox("tcp"); 567 } 568 if (tp->pr_dump) 569 (*tp->pr_dump)(nl[tp->pr_index].n_value, tp->pr_name, 570 pcbaddr); 571 else 572 printf("%s: no PCB dump routine\n", tp->pr_name); 573 exit(0); 574 } 575 if (pflag) { 576 if (iflag && tp->pr_istats) 577 intpr(interval, nl[N_IFNET_LIST].n_value, tp->pr_istats); 578 else if (tp->pr_stats) 579 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 580 tp->pr_name); 581 else 582 printf("%s: no stats routine\n", tp->pr_name); 583 exit(0); 584 } 585 if (qflag) { 586 print_softintrq(); 587 exit(0); 588 } 589 /* 590 * Keep file descriptors open to avoid overhead 591 * of open/close on each call to get* routines. 592 */ 593 sethostent(1); 594 setnetent(1); 595 /* 596 * If -f was used afnames != NULL, loop over the address families. 597 * Otherwise do this at least once (with af == AF_UNSPEC). 598 */ 599 afname = NULL; 600 do { 601 if (afnames != NULL) { 602 afname = strsep(&afnames, ","); 603 if (afname == NULL) 604 break; /* Exit early */ 605 if (strcmp(afname, "inet") == 0) 606 af = AF_INET; 607 else if (strcmp(afname, "inet6") == 0) 608 af = AF_INET6; 609 else if (strcmp(afname, "arp") == 0) 610 af = AF_ARP; 611 else if (strcmp(afname, "pfkey") == 0) 612 af = PF_KEY; 613 else if (strcmp(afname, "unix") == 0 614 || strcmp(afname, "local") == 0) 615 af = AF_LOCAL; 616 else if (strcmp(afname, "atalk") == 0) 617 af = AF_APPLETALK; 618 else if (strcmp(afname, "mpls") == 0) 619 af = AF_MPLS; 620 else { 621 warnx("%s: unknown address family", 622 afname); 623 continue; 624 } 625 } 626 627 if (iflag) { 628 if (af != AF_UNSPEC) 629 goto protostat; 630 631 intpr(interval, nl[N_IFNET_LIST].n_value, NULL); 632 break; 633 } 634 if (rflag) { 635 if (sflag) 636 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 637 else { 638 if (use_sysctl) 639 p_rttables(af, 640 nflag|tagflag|vflag|Lflag, 0, ~0); 641 else 642 routepr(nl[N_RTREE].n_value); 643 } 644 break; 645 } 646 #ifndef SMALL 647 if (gflag) { 648 if (sflag) { 649 if (af == AF_INET || af == AF_UNSPEC) 650 mrt_stats(nl[N_MRTPROTO].n_value, 651 nl[N_MRTSTAT].n_value); 652 #ifdef INET6 653 if (af == AF_INET6 || af == AF_UNSPEC) 654 mrt6_stats(nl[N_MRT6PROTO].n_value, 655 nl[N_MRT6STAT].n_value); 656 #endif 657 } 658 else { 659 if (af == AF_INET || af == AF_UNSPEC) 660 mroutepr(nl[N_MRTPROTO].n_value, 661 nl[N_MFCHASHTBL].n_value, 662 nl[N_MFCHASH].n_value, 663 nl[N_VIFTABLE].n_value); 664 #ifdef INET6 665 if (af == AF_INET6 || af == AF_UNSPEC) 666 mroute6pr(nl[N_MRT6PROTO].n_value, 667 nl[N_MF6CTABLE].n_value, 668 nl[N_MIF6TABLE].n_value); 669 #endif 670 } 671 break; 672 } 673 #endif 674 protostat: 675 if (af == AF_INET || af == AF_UNSPEC) { 676 setprotoent(1); 677 setservent(1); 678 /* ugh, this is O(MN) ... why do we do this? */ 679 while ((p = getprotoent()) != NULL) { 680 for (tp = protox; tp->pr_name; tp++) 681 if (strcmp(tp->pr_name, p->p_name) == 0) 682 break; 683 if (tp->pr_name == 0 || tp->pr_wanted == 0) 684 continue; 685 printproto(tp, p->p_name); 686 tp->pr_wanted = 0; 687 } 688 endprotoent(); 689 for (tp = protox; tp->pr_name; tp++) 690 if (tp->pr_wanted) 691 printproto(tp, tp->pr_name); 692 } 693 #ifdef INET6 694 if (af == AF_INET6 || af == AF_UNSPEC) 695 for (tp = ip6protox; tp->pr_name; tp++) 696 printproto(tp, tp->pr_name); 697 #endif 698 if (af == AF_ARP || af == AF_UNSPEC) 699 for (tp = arpprotox; tp->pr_name; tp++) 700 printproto(tp, tp->pr_name); 701 #ifdef IPSEC 702 if (af == PF_KEY || af == AF_UNSPEC) 703 for (tp = pfkeyprotox; tp->pr_name; tp++) 704 printproto(tp, tp->pr_name); 705 #endif 706 #ifndef SMALL 707 if (af == AF_APPLETALK || af == AF_UNSPEC) 708 for (tp = atalkprotox; tp->pr_name; tp++) 709 printproto(tp, tp->pr_name); 710 if ((af == AF_LOCAL || af == AF_UNSPEC) && !sflag) 711 unixpr(nl[N_UNIXSW].n_value); 712 #endif 713 } while (afnames != NULL && afname != NULL); 714 exit(0); 715 } 716 717 /* 718 * Print out protocol statistics or control blocks (per sflag). 719 * If the interface was not specifically requested, and the symbol 720 * is not in the namelist, ignore this one. 721 */ 722 static void 723 printproto(struct protox *tp, const char *name) 724 { 725 void (*pr)(u_long, const char *); 726 u_long off; 727 728 if (sflag) { 729 if (iflag) { 730 if (tp->pr_istats) 731 intpr(interval, nl[N_IFNET_LIST].n_value, 732 tp->pr_istats); 733 return; 734 } 735 else { 736 pr = tp->pr_stats; 737 off = nl[tp->pr_sindex].n_value; 738 } 739 } else { 740 pr = tp->pr_cblocks; 741 off = nl[tp->pr_index].n_value; 742 } 743 if (pr != NULL && ((off || af != AF_UNSPEC) || use_sysctl)) { 744 (*pr)(off, name); 745 } 746 } 747 748 /* 749 * Print softintrq status. 750 */ 751 void 752 print_softintrq(void) 753 { 754 struct ifqueue intrq, *ifq = &intrq; 755 const struct softintrq *siq; 756 u_long off; 757 758 for (siq = softintrq; siq->siq_name != NULL; siq++) { 759 off = nl[siq->siq_index].n_value; 760 if (off == 0) 761 continue; 762 763 kread(off, (char *)ifq, sizeof(*ifq)); 764 printf("%s:\n", siq->siq_name); 765 printf("\tqueue length: %d\n", ifq->ifq_len); 766 printf("\tmaximum queue length: %d\n", ifq->ifq_maxlen); 767 printf("\tpackets dropped: %d\n", ifq->ifq_drops); 768 } 769 } 770 771 /* 772 * Read kernel memory, return 0 on success. 773 */ 774 int 775 kread(u_long addr, char *buf, int size) 776 { 777 778 if (kvm_read(kvmd, addr, buf, size) != size) { 779 warnx("%s", kvm_geterr(kvmd)); 780 return (-1); 781 } 782 return (0); 783 } 784 785 const char * 786 plural(int n) 787 { 788 789 return (n != 1 ? "s" : ""); 790 } 791 792 const char * 793 plurales(int n) 794 { 795 796 return (n != 1 ? "es" : ""); 797 } 798 799 int 800 get_hardticks(void) 801 { 802 int hardticks; 803 804 kread(nl[N_HARDCLOCK_TICKS].n_value, (char *)&hardticks, 805 sizeof(hardticks)); 806 return (hardticks); 807 } 808 809 /* 810 * Find the protox for the given "well-known" name. 811 */ 812 static struct protox * 813 knownname(const char *name) 814 { 815 struct protox **tpp, *tp; 816 817 for (tpp = protoprotox; *tpp; tpp++) 818 for (tp = *tpp; tp->pr_name; tp++) 819 if (strcmp(tp->pr_name, name) == 0) 820 return (tp); 821 return (NULL); 822 } 823 824 /* 825 * Find the protox corresponding to name. 826 */ 827 static struct protox * 828 name2protox(const char *name) 829 { 830 struct protox *tp; 831 char **alias; /* alias from p->aliases */ 832 struct protoent *p; 833 834 /* 835 * Try to find the name in the list of "well-known" names. If that 836 * fails, check if name is an alias for an Internet protocol. 837 */ 838 if ((tp = knownname(name)) != NULL) 839 return (tp); 840 841 setprotoent(1); /* make protocol lookup cheaper */ 842 while ((p = getprotoent()) != NULL) { 843 /* assert: name not same as p->name */ 844 for (alias = p->p_aliases; *alias; alias++) 845 if (strcmp(name, *alias) == 0) { 846 endprotoent(); 847 return (knownname(p->p_name)); 848 } 849 } 850 endprotoent(); 851 return (NULL); 852 } 853 854 static void 855 usage(void) 856 { 857 const char *progname = getprogname(); 858 859 (void)fprintf(stderr, 860 "usage: %s [-Aan] [-f address_family[,family ...]] [-M core] [-N system]\n", progname); 861 (void)fprintf(stderr, 862 " %s [-bdgiLmnqrsSv] [-f address_family[,family ...]] [-M core] [-N system]\n", 863 progname); 864 (void)fprintf(stderr, 865 " %s [-dn] [-I interface] [-M core] [-N system] [-w wait]\n", progname); 866 (void)fprintf(stderr, 867 " %s [-p protocol] [-M core] [-N system]\n", progname); 868 (void)fprintf(stderr, 869 " %s [-p protocol] [-M core] [-N system] -P pcbaddr\n", progname); 870 (void)fprintf(stderr, 871 " %s [-p protocol] [-i] [-I Interface] \n", progname); 872 (void)fprintf(stderr, 873 " %s [-s] [-f address_family[,family ...]] [-i] [-I Interface]\n", progname); 874 (void)fprintf(stderr, 875 " %s [-s] [-B] [-I interface]\n", progname); 876 exit(1); 877 } 878
Indexes created Thu Sep 25 02:09:54 GMT 2025