main.c revision 1.92
1 /* $NetBSD: main.c,v 1.92 2014/10/09 23:45:47 enami 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 1.92 2014/10/09 23:45:47 enami 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_LIST 6 83 { "_ifnet_list", 0, 0, 0, 0 }, 84 #define N_ICMPSTAT 7 85 { "_icmpstat", 0, 0, 0, 0 }, /* not available via kvm */ 86 #define N_RTSTAT 8 87 { "_rtstat", 0, 0, 0, 0 }, 88 #define N_UNIXSW 9 89 { "_unixsw", 0, 0, 0, 0 }, 90 #define N_RTREE 10 91 { "_rt_tables", 0, 0, 0, 0 }, 92 #define N_NFILE 11 93 { "_nfile", 0, 0, 0, 0 }, 94 #define N_IGMPSTAT 12 95 { "_igmpstat", 0, 0, 0, 0 }, /* not available via kvm */ 96 #define N_MRTPROTO 13 97 { "_ip_mrtproto", 0, 0, 0, 0 }, 98 #define N_MRTSTAT 14 99 { "_mrtstat", 0, 0, 0, 0 }, 100 #define N_MFCHASHTBL 15 101 { "_mfchashtbl", 0, 0, 0, 0 }, 102 #define N_MFCHASH 16 103 { "_mfchash", 0, 0, 0, 0 }, 104 #define N_VIFTABLE 17 105 { "_viftable", 0, 0, 0, 0 }, 106 #define N_MSIZE 18 107 { "_msize", 0, 0, 0, 0 }, 108 #define N_MCLBYTES 19 109 { "_mclbytes", 0, 0, 0, 0 }, 110 #define N_DDPSTAT 20 111 { "_ddpstat", 0, 0, 0, 0 }, /* not available via kvm */ 112 #define N_DDPCB 21 113 { "_ddpcb", 0, 0, 0, 0 }, 114 #define N_MBPOOL 22 115 { "_mbpool", 0, 0, 0, 0 }, 116 #define N_MCLPOOL 23 117 { "_mclpool", 0, 0, 0, 0 }, 118 #define N_IP6STAT 24 119 { "_ip6stat", 0, 0, 0, 0 }, /* not available via kvm */ 120 #define N_TCP6STAT 25 121 { "_tcp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 122 #define N_UDP6STAT 26 123 { "_udp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 124 #define N_ICMP6STAT 27 125 { "_icmp6stat", 0, 0, 0, 0 }, /* not available via kvm */ 126 #define N_IPSECSTAT 28 127 { "_ipsecstat", 0, 0, 0, 0 }, /* not available via kvm */ 128 #define N_IPSEC6STAT 29 129 { "_ipsec6stat", 0, 0, 0, 0 }, /* not available via kvm */ 130 #define N_PIM6STAT 30 131 { "_pim6stat", 0, 0, 0, 0 }, /* not available via kvm */ 132 #define N_MRT6PROTO 31 133 { "_ip6_mrtproto", 0, 0, 0, 0 }, 134 #define N_MRT6STAT 32 135 { "_mrt6stat", 0, 0, 0, 0 }, 136 #define N_MF6CTABLE 33 137 { "_mf6ctable", 0, 0, 0, 0 }, 138 #define N_MIF6TABLE 34 139 { "_mif6table", 0, 0, 0, 0 }, 140 #define N_PFKEYSTAT 35 141 { "_pfkeystat", 0, 0, 0, 0 }, /* not available via kvm */ 142 #define N_ARPSTAT 36 143 { "_arpstat", 0, 0, 0, 0 }, /* not available via kvm */ 144 #define N_RIP6STAT 37 145 { "_rip6stat", 0, 0, 0, 0 }, /* not available via kvm */ 146 #define N_ARPINTRQ 38 147 { "_arpintrq", 0, 0, 0, 0 }, 148 #define N_IPINTRQ 39 149 { "_ipintrq", 0, 0, 0, 0 }, 150 #define N_IP6INTRQ 40 151 { "_ip6intrq", 0, 0, 0, 0 }, 152 #define N_ATINTRQ1 41 153 { "_atintrq1", 0, 0, 0, 0 }, 154 #define N_ATINTRQ2 42 155 { "_atintrq2", 0, 0, 0, 0 }, 156 #define N_NSINTRQ 43 157 { "_nsintrq", 0, 0, 0, 0 }, 158 #define N_LLCINTRQ 44 159 { "_llcintrq", 0, 0, 0, 0 }, 160 #define N_HDINTRQ 45 161 { "_hdintrq", 0, 0, 0, 0 }, 162 #define N_NATMINTRQ 46 163 { "_natmintrq", 0, 0, 0, 0 }, 164 #define N_PPPOEDISCINQ 47 165 { "_ppoediscinq", 0, 0, 0, 0 }, 166 #define N_PPPOEINQ 48 167 { "_ppoeinq", 0, 0, 0, 0 }, 168 #define N_PKINTRQ 49 169 { "_pkintrq", 0, 0, 0, 0 }, 170 #define N_HARDCLOCK_TICKS 50 171 { "_hardclock_ticks", 0, 0, 0, 0 }, 172 #define N_PIMSTAT 51 173 { "_pimstat", 0, 0, 0, 0 }, 174 #define N_CARPSTAT 52 175 { "_carpstats", 0, 0, 0, 0 }, /* not available via kvm */ 176 #define N_PFSYNCSTAT 53 177 { "_pfsyncstats", 0, 0, 0, 0}, /* not available via kvm */ 178 { "", 0, 0, 0, 0 }, 179 }; 180 181 struct protox { 182 u_char pr_index; /* index into nlist of cb head */ 183 u_char pr_sindex; /* index into nlist of stat block */ 184 u_char pr_wanted; /* 1 if wanted, 0 otherwise */ 185 void (*pr_cblocks) /* control blocks printing routine */ 186 __P((u_long, const char *)); 187 void (*pr_stats) /* statistics printing routine */ 188 __P((u_long, const char *)); 189 void (*pr_istats) 190 __P((const char *)); /* per/if statistics printing routine */ 191 void (*pr_dump) /* PCB state dump routine */ 192 __P((u_long, const char *, u_long)); 193 const char *pr_name; /* well-known name */ 194 } protox[] = { 195 { N_TCBTABLE, N_TCPSTAT, 1, protopr, 196 tcp_stats, NULL, tcp_dump, "tcp" }, 197 { N_UDBTABLE, N_UDPSTAT, 1, protopr, 198 udp_stats, NULL, 0, "udp" }, 199 { -1, N_IPSTAT, 1, 0, 200 ip_stats, NULL, 0, "ip" }, 201 { -1, N_ICMPSTAT, 1, 0, 202 icmp_stats, NULL, 0, "icmp" }, 203 { -1, N_IGMPSTAT, 1, 0, 204 igmp_stats, NULL, 0, "igmp" }, 205 { -1, N_CARPSTAT, 1, 0, 206 carp_stats, NULL, 0, "carp" }, 207 #ifdef IPSEC 208 { -1, N_IPSECSTAT, 1, 0, 209 fast_ipsec_stats, NULL, 0, "ipsec" }, 210 #endif 211 { -1, N_PIMSTAT, 1, 0, 212 pim_stats, NULL, 0, "pim" }, 213 { -1, N_PFSYNCSTAT, 1, 0, 214 pfsync_stats, NULL, 0, "pfsync" }, 215 { -1, -1, 0, 0, 216 0, NULL, 0, 0 } 217 }; 218 219 #ifdef INET6 220 struct protox ip6protox[] = { 221 { -1, N_IP6STAT, 1, 0, 222 ip6_stats, ip6_ifstats, 0, "ip6" }, 223 { -1, N_ICMP6STAT, 1, 0, 224 icmp6_stats, icmp6_ifstats, 0, "icmp6" }, 225 #ifdef TCP6 226 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 227 tcp6_stats, NULL, tcp6_dump, "tcp6" }, 228 #else 229 { N_TCBTABLE, N_TCP6STAT, 1, ip6protopr, 230 tcp_stats, NULL, tcp6_dump, "tcp6" }, 231 #endif 232 { N_UDBTABLE, N_UDP6STAT, 1, ip6protopr, 233 udp6_stats, NULL, 0, "udp6" }, 234 #ifdef IPSEC 235 { -1, N_IPSEC6STAT, 1, 0, 236 fast_ipsec_stats, NULL, 0, "ipsec6" }, 237 #endif 238 { -1, N_PIM6STAT, 1, 0, 239 pim6_stats, NULL, 0, "pim6" }, 240 { -1, N_RIP6STAT, 1, 0, 241 rip6_stats, NULL, 0, "rip6" }, 242 { -1, -1, 0, 0, 243 0, NULL, 0, 0 } 244 }; 245 #endif 246 247 struct protox arpprotox[] = { 248 { -1, N_ARPSTAT, 1, 0, 249 arp_stats, NULL, 0, "arp" }, 250 { -1, -1, 0, 0, 251 0, NULL, 0, 0 } 252 }; 253 254 #ifdef IPSEC 255 struct protox pfkeyprotox[] = { 256 { -1, N_PFKEYSTAT, 1, 0, 257 pfkey_stats, NULL, 0, "pfkey" }, 258 { -1, -1, 0, 0, 259 0, NULL, 0, 0 } 260 }; 261 #endif 262 263 #ifndef SMALL 264 struct protox atalkprotox[] = { 265 { N_DDPCB, N_DDPSTAT, 1, atalkprotopr, 266 ddp_stats, NULL, 0, "ddp" }, 267 { -1, -1, 0, 0, 268 0, NULL, 0, NULL } 269 }; 270 #endif 271 272 struct protox *protoprotox[] = { protox, 273 #ifdef INET6 274 ip6protox, 275 #endif 276 arpprotox, 277 #ifdef IPSEC 278 pfkeyprotox, 279 #endif 280 #ifndef SMALL 281 atalkprotox, 282 #endif 283 NULL }; 284 285 const struct softintrq { 286 const char *siq_name; 287 int siq_index; 288 } softintrq[] = { 289 { "arpintrq", N_ARPINTRQ }, 290 { "ipintrq", N_IPINTRQ }, 291 { "ip6intrq", N_IP6INTRQ }, 292 { "atintrq1", N_ATINTRQ1 }, 293 { "atintrq2", N_ATINTRQ2 }, 294 { "llcintrq", N_LLCINTRQ }, 295 { "hdintrq", N_HDINTRQ }, 296 { "natmintrq", N_NATMINTRQ }, 297 { "ppoediscinq", N_PPPOEDISCINQ }, 298 { "ppoeinq", N_PPPOEINQ }, 299 { "pkintrq", N_PKINTRQ }, 300 { NULL, -1 }, 301 }; 302 303 int main __P((int, char *[])); 304 static void printproto __P((struct protox *, const char *)); 305 static void print_softintrq __P((void)); 306 __dead static void usage(void); 307 static struct protox *name2protox __P((const char *)); 308 static struct protox *knownname __P((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 iflag || 361 #ifndef SMALL 362 gflag || 363 #endif 364 (pflag && tp->pr_sindex == N_PIMSTAT) || 365 Pflag) { 366 /* These flags are not yet supported via sysctl(3). */ 367 use_sysctl = 0; 368 } else { 369 /* We can use sysctl(3). */ 370 use_sysctl = 1; 371 } 372 373 if (force_sysctl && !use_sysctl) { 374 /* Let the user know what's about to happen. */ 375 warnx("forcing sysctl usage even though it might not be "\ 376 "supported"); 377 use_sysctl = 1; 378 } 379 380 kvmd = prepare_kvmd(nf, mf, buf); 381 382 if (!use_sysctl) { 383 384 if (kvmd == NULL) 385 errx(1, "kvm error: %s", buf); 386 if (kvm_nlist(kvmd, nl) < 0 || nl[0].n_type == 0) { 387 if (nf) 388 errx(1, "%s: no namelist", nf); 389 else 390 errx(1, "no namelist"); 391 } 392 } else 393 (void)setgid(getgid()); 394 } 395 396 int 397 main(int argc, char *argv[]) 398 { 399 struct protoent *p; 400 struct protox *tp; /* for printing cblocks & stats */ 401 int ch; 402 char *cp; 403 char *afname, *afnames; 404 u_long pcbaddr; 405 406 if (prog_init) { 407 if (prog_init() == -1) 408 err(1, "init failed"); 409 force_sysctl = 1; /* cheap trick */ 410 } 411 412 egid = getegid(); 413 (void)setegid(getgid()); 414 tp = NULL; 415 af = AF_UNSPEC; 416 afnames = NULL; 417 pcbaddr = 0; 418 419 while ((ch = getopt(argc, argv, 420 "AabBdf:ghI:LliM:mN:nP:p:qrsStTuVvw:X")) != -1) 421 switch (ch) { 422 case 'A': 423 Aflag = 1; 424 break; 425 case 'a': 426 aflag = 1; 427 break; 428 case 'b': 429 bflag = 1; 430 break; 431 case 'B': 432 Bflag = 1; 433 break; 434 case 'd': 435 dflag = 1; 436 break; 437 case 'f': 438 afnames = optarg; 439 break; 440 #ifndef SMALL 441 case 'g': 442 gflag = 1; 443 break; 444 #endif 445 case 'h': 446 hflag = 1; 447 break; 448 case 'I': 449 iflag = 1; 450 interface = optarg; 451 break; 452 case 'i': 453 iflag = 1; 454 break; 455 case 'L': 456 Lflag = 1; 457 break; 458 case 'l': 459 lflag = 1; 460 break; 461 case 'M': 462 memf = optarg; 463 break; 464 case 'm': 465 mflag = 1; 466 break; 467 case 'N': 468 nlistf = optarg; 469 break; 470 case 'n': 471 numeric_addr = numeric_port = nflag = 1; 472 break; 473 case 'P': 474 errno = 0; 475 pcbaddr = strtoul(optarg, &cp, 16); 476 if (*cp != '\0' || errno == ERANGE) 477 errx(1, "invalid PCB address %s", 478 optarg); 479 Pflag = 1; 480 break; 481 case 'p': 482 if ((tp = name2protox(optarg)) == NULL) 483 errx(1, "%s: unknown or uninstrumented protocol", 484 optarg); 485 pflag = 1; 486 break; 487 case 'q': 488 qflag = 1; 489 break; 490 case 'r': 491 rflag = 1; 492 break; 493 case 's': 494 ++sflag; 495 break; 496 case 'S': 497 numeric_addr = 1; 498 break; 499 case 't': 500 tflag = 1; 501 break; 502 case 'T': 503 tagflag = 1; 504 break; 505 case 'u': 506 af = AF_LOCAL; 507 break; 508 case 'V': 509 Vflag++; 510 break; 511 case 'v': 512 vflag++; 513 break; 514 case 'w': 515 interval = atoi(optarg); 516 iflag = 1; 517 break; 518 case 'X': 519 force_sysctl = 1; 520 break; 521 case '?': 522 default: 523 usage(); 524 } 525 argv += optind; 526 argc -= optind; 527 528 #define BACKWARD_COMPATIBILITY 529 #ifdef BACKWARD_COMPATIBILITY 530 if (*argv) { 531 if (isdigit((unsigned char)**argv)) { 532 interval = atoi(*argv); 533 if (interval <= 0) 534 usage(); 535 ++argv; 536 iflag = 1; 537 } 538 if (*argv) { 539 nlistf = *argv; 540 if (*++argv) 541 memf = *argv; 542 } 543 } 544 #endif 545 546 prepare(nlistf, memf, tp); 547 548 #ifndef SMALL 549 if (Bflag) { 550 if (sflag) 551 bpf_stats(); 552 else 553 bpf_dump(interface); 554 exit(0); 555 } 556 #endif 557 558 if (mflag) { 559 mbpr(nl[N_MBSTAT].n_value, nl[N_MSIZE].n_value, 560 nl[N_MCLBYTES].n_value, nl[N_MBPOOL].n_value, 561 nl[N_MCLPOOL].n_value); 562 exit(0); 563 } 564 if (Pflag) { 565 if (tp == NULL) { 566 /* Default to TCP. */ 567 tp = name2protox("tcp"); 568 } 569 if (tp->pr_dump) 570 (*tp->pr_dump)(nl[tp->pr_index].n_value, tp->pr_name, 571 pcbaddr); 572 else 573 printf("%s: no PCB dump routine\n", tp->pr_name); 574 exit(0); 575 } 576 if (pflag) { 577 if (iflag && tp->pr_istats) 578 intpr(interval, nl[N_IFNET_LIST].n_value, tp->pr_istats); 579 else if (tp->pr_stats) 580 (*tp->pr_stats)(nl[tp->pr_sindex].n_value, 581 tp->pr_name); 582 else 583 printf("%s: no stats routine\n", tp->pr_name); 584 exit(0); 585 } 586 if (qflag) { 587 print_softintrq(); 588 exit(0); 589 } 590 /* 591 * Keep file descriptors open to avoid overhead 592 * of open/close on each call to get* routines. 593 */ 594 sethostent(1); 595 setnetent(1); 596 /* 597 * If -f was used afnames != NULL, loop over the address families. 598 * Otherwise do this at least once (with af == AF_UNSPEC). 599 */ 600 afname = NULL; 601 do { 602 if (afnames != NULL) { 603 afname = strsep(&afnames, ","); 604 if (afname == NULL) 605 break; /* Exit early */ 606 if (strcmp(afname, "inet") == 0) 607 af = AF_INET; 608 else if (strcmp(afname, "inet6") == 0) 609 af = AF_INET6; 610 else if (strcmp(afname, "arp") == 0) 611 af = AF_ARP; 612 else if (strcmp(afname, "pfkey") == 0) 613 af = PF_KEY; 614 else if (strcmp(afname, "unix") == 0 615 || strcmp(afname, "local") == 0) 616 af = AF_LOCAL; 617 else if (strcmp(afname, "atalk") == 0) 618 af = AF_APPLETALK; 619 else if (strcmp(afname, "mpls") == 0) 620 af = AF_MPLS; 621 else { 622 warnx("%s: unknown address family", 623 afname); 624 continue; 625 } 626 } 627 628 if (iflag) { 629 if (af != AF_UNSPEC) 630 goto protostat; 631 632 intpr(interval, nl[N_IFNET_LIST].n_value, NULL); 633 break; 634 } 635 if (rflag) { 636 if (sflag) 637 rt_stats(use_sysctl ? 0 : nl[N_RTSTAT].n_value); 638 else { 639 if (use_sysctl) 640 p_rttables(af); 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) __P((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 16:09:42 GMT 2025