1 /* $NetBSD: inet.c,v 1.117 2022/09/21 07:59:19 msaitoh Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1988, 1993 5 * The 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 #if 0 35 static char sccsid[] = "from: @(#)inet.c 8.4 (Berkeley) 4/20/94"; 36 #else 37 __RCSID("$NetBSD: inet.c,v 1.117 2022/09/21 07:59:19 msaitoh Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #define _CALLOUT_PRIVATE /* for defs in sys/callout.h */ 42 43 #include <sys/param.h> 44 #include <sys/queue.h> 45 #include <sys/socket.h> 46 #include <sys/socketvar.h> 47 #include <sys/mbuf.h> 48 #include <sys/protosw.h> 49 #include <sys/sysctl.h> 50 51 #include <net/if_arp.h> 52 #include <net/route.h> 53 #include <netinet/in.h> 54 #include <netinet/in_systm.h> 55 #include <netinet/ip.h> 56 #include <netinet/in_pcb.h> 57 #define ICMP_STRINGS 58 #include <netinet/ip_icmp.h> 59 60 #ifdef INET6 61 #include <netinet/ip6.h> 62 #endif 63 64 #include <netinet/icmp_var.h> 65 #include <netinet/igmp_var.h> 66 #include <netinet/ip_var.h> 67 #include <netinet/pim_var.h> 68 #include <netinet/tcp.h> 69 #include <netinet/tcp_seq.h> 70 #define TCPSTATES 71 #include <netinet/tcp_fsm.h> 72 #define TCPTIMERS 73 #include <netinet/tcp_timer.h> 74 #include <netinet/tcp_var.h> 75 #include <netinet/tcp_debug.h> 76 #include <netinet/udp.h> 77 #include <netinet/ip_carp.h> 78 #include <netinet/udp_var.h> 79 #include <netinet/tcp_vtw.h> 80 81 #include <arpa/inet.h> 82 #include <kvm.h> 83 #include <netdb.h> 84 #include <stdio.h> 85 #include <string.h> 86 #include <unistd.h> 87 #include <stdlib.h> 88 #include <err.h> 89 #include <util.h> 90 #include <errno.h> 91 92 #include "netstat.h" 93 #include "vtw.h" 94 #include "prog_ops.h" 95 96 char *inetname(struct in_addr *); 97 void inetprint(struct in_addr *, uint16_t, const char *, int); 98 99 void print_vtw_v4(const vtw_t *); 100 101 /* 102 * Print a summary of connections related to an Internet 103 * protocol. For TCP, also give state of connection. 104 * Listening processes (aflag) are suppressed unless the 105 * -a (all) flag is specified. 106 */ 107 static int width; 108 static int compact; 109 110 /* VTW-related variables. */ 111 static struct timeval now; 112 113 static void 114 protoprhdr(void) 115 { 116 printf("Active Internet connections"); 117 if (aflag) 118 printf(" (including servers)"); 119 putchar('\n'); 120 if (Aflag) 121 printf("%-8.8s ", "PCB"); 122 printf( 123 Vflag ? "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %-13.13s Expires\n" 124 : "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %s\n", 125 "Proto", "Recv-Q", "Send-Q", compact ? "" : " ", 126 width, width, "Local Address", 127 width, width, "Foreign Address", 128 "State"); 129 } 130 131 static void 132 protopr0(intptr_t ppcb, u_long rcv_sb_cc, u_long snd_sb_cc, 133 struct in_addr *laddr, uint16_t lport, 134 struct in_addr *faddr, uint16_t fport, 135 short t_state, const char *name, int inp_flags, 136 const struct timeval *expires) 137 { 138 static const char *shorttcpstates[] = { 139 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 140 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 141 "LASTAK", "FWAIT2", "TMWAIT" 142 }; 143 int istcp; 144 145 istcp = strcmp(name, "tcp") == 0; 146 147 if (Aflag) 148 printf("%8" PRIxPTR " ", ppcb); 149 150 printf("%-5.5s %6ld %6ld%s", name, rcv_sb_cc, snd_sb_cc, 151 compact ? "" : " "); 152 if (numeric_port) { 153 inetprint(laddr, lport, name, 1); 154 inetprint(faddr, fport, name, 1); 155 } else if (inp_flags & INP_ANONPORT) { 156 inetprint(laddr, lport, name, 1); 157 inetprint(faddr, fport, name, 0); 158 } else { 159 inetprint(laddr, lport, name, 0); 160 inetprint(faddr, fport, name, 0); 161 } 162 if (istcp) { 163 if (t_state < 0 || t_state >= TCP_NSTATES) 164 printf(" %d", t_state); 165 else 166 printf(" %s", compact ? shorttcpstates[t_state] : 167 tcpstates[t_state]); 168 } 169 if (Vflag && expires != NULL) { 170 if (expires->tv_sec == 0 && expires->tv_usec == -1) 171 printf(" reclaimed"); 172 else { 173 struct timeval delta; 174 175 timersub(expires, &now, &delta); 176 printf(" %.3fms", 177 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 178 } 179 } 180 putchar('\n'); 181 } 182 183 static void 184 dbg_printf(const char *fmt, ...) 185 { 186 return; 187 } 188 189 void 190 print_vtw_v4(const vtw_t *vtw) 191 { 192 const vtw_v4_t *v4 = (const vtw_v4_t *)vtw; 193 struct timeval delta; 194 struct in_addr la, fa; 195 char buf[2][32]; 196 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 197 198 la.s_addr = v4->laddr; 199 fa.s_addr = v4->faddr; 200 201 snprintf(&buf[0][0], 32, "%s", inet_ntoa(la)); 202 snprintf(&buf[1][0], 32, "%s", inet_ntoa(fa)); 203 204 timersub(&vtw->expire, &now, &delta); 205 206 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 207 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n", 208 buf[0], ntohs(v4->lport), 209 buf[1], ntohs(v4->fport)); 210 if (!(Vflag && vflag)) 211 return; 212 } else if (vtw->expire.tv_sec == 0) 213 return; 214 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 215 dbg_printf("%15.15s:%d %15.15s:%d expired\n", 216 buf[0], ntohs(v4->lport), 217 buf[1], ntohs(v4->fport)); 218 return; 219 } else { 220 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n", 221 buf[0], ntohs(v4->lport), 222 buf[1], ntohs(v4->fport), 223 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 224 } 225 protopr0(0, 0, 0, 226 &la, v4->lport, 227 &fa, v4->fport, 228 TCPS_TIME_WAIT, "tcp", 0, &vtw->expire); 229 } 230 231 struct kinfo_pcb * 232 getpcblist_sysctl(const char *name, size_t *len) 233 { 234 int mib[8]; 235 size_t namelen = 0, size = 0; 236 char *mibname = NULL; 237 struct kinfo_pcb *pcblist; 238 239 memset(mib, 0, sizeof(mib)); 240 241 if (asprintf(&mibname, "net.inet%s.%s.pcblist", name + 3, name) == -1) 242 err(1, "asprintf"); 243 244 /* get dynamic pcblist node */ 245 if (prog_sysctlnametomib(mibname, mib, &namelen) == -1) { 246 if (errno == ENOENT) { 247 *len = 0; 248 return NULL; 249 } 250 251 err(1, "sysctlnametomib: %s", mibname); 252 } 253 254 free(mibname); 255 256 if (prog_sysctl(mib, __arraycount(mib), NULL, &size, NULL, 0) == -1) 257 err(1, "sysctl (query)"); 258 259 if ((pcblist = malloc(size)) == NULL) 260 err(1, "malloc"); 261 memset(pcblist, 0, size); 262 263 mib[6] = sizeof(*pcblist); 264 mib[7] = size / sizeof(*pcblist); 265 266 if (prog_sysctl(mib, __arraycount(mib), pcblist, &size, NULL, 0) == -1) 267 err(1, "sysctl (copy)"); 268 269 *len = size / sizeof(*pcblist); 270 return pcblist; 271 272 } 273 274 static struct kinfo_pcb * 275 getpcblist_kmem(u_long off, const char *name, size_t *len) 276 { 277 struct inpcbtable table; 278 struct inpcb_hdr *next, *prev; 279 struct inpcb inpcb; 280 struct tcpcb tcpcb; 281 struct socket sockb; 282 int istcp = strcmp(name, "tcp") == 0; 283 struct kinfo_pcb *pcblist; 284 size_t size = 100, i; 285 struct sockaddr_in sin; 286 struct inpcbqueue *head; 287 288 if (off == 0) { 289 *len = 0; 290 return NULL; 291 } 292 293 kread(off, (char *)&table, sizeof table); 294 head = &table.inpt_queue; 295 next = TAILQ_FIRST(head); 296 prev = TAILQ_END(head); 297 298 pcblist = NULL; 299 if (reallocarr(&pcblist, size, sizeof(*pcblist)) != 0) 300 err(1, "reallocarr"); 301 302 i = 0; 303 while (next != TAILQ_END(head)) { 304 kread((u_long)next, (char *)&inpcb, sizeof inpcb); 305 prev = next; 306 next = TAILQ_NEXT(&inpcb, inp_queue); 307 308 if (inpcb.inp_af != AF_INET) 309 continue; 310 311 kread((u_long)inpcb.inp_socket, (char *)&sockb, sizeof(sockb)); 312 if (istcp) { 313 kread((u_long)inpcb.inp_ppcb, 314 (char *)&tcpcb, sizeof (tcpcb)); 315 } 316 pcblist[i].ki_ppcbaddr = 317 istcp ? (uintptr_t) inpcb.inp_ppcb : (uintptr_t) prev; 318 pcblist[i].ki_rcvq = (uint64_t)sockb.so_rcv.sb_cc; 319 pcblist[i].ki_sndq = (uint64_t)sockb.so_snd.sb_cc; 320 321 sin.sin_addr = inpcb.inp_laddr; 322 sin.sin_port = inpcb.inp_lport; 323 memcpy(&pcblist[i].ki_s, &sin, sizeof(sin)); 324 sin.sin_addr = inpcb.inp_faddr; 325 sin.sin_port = inpcb.inp_fport; 326 memcpy(&pcblist[i].ki_d, &sin, sizeof(sin)); 327 pcblist[i].ki_tstate = tcpcb.t_state; 328 pcblist[i].ki_pflags = inpcb.inp_flags; 329 if (i++ == size) { 330 size += 100; 331 if (reallocarr(&pcblist, size, sizeof(*pcblist)) != 0) 332 err(1, "reallocarr"); 333 } 334 } 335 *len = i; 336 return pcblist; 337 } 338 339 void 340 protopr(u_long off, const char *name) 341 { 342 static int first = 1; 343 struct kinfo_pcb *pcblist; 344 size_t i, len; 345 346 compact = 0; 347 if (Aflag) { 348 if (!numeric_addr) 349 width = 18; 350 else { 351 width = 21; 352 compact = 1; 353 } 354 } else 355 width = 22; 356 357 if (use_sysctl) 358 pcblist = getpcblist_sysctl(name, &len); 359 else 360 pcblist = getpcblist_kmem(off, name, &len); 361 362 for (i = 0; i < len; i++) { 363 struct sockaddr_in src, dst; 364 365 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 366 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 367 368 if (!aflag && (inet_lnaof(dst.sin_addr) == INADDR_ANY)) 369 continue; 370 371 if (first) { 372 protoprhdr(); 373 first = 0; 374 } 375 protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 376 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 377 &src.sin_addr, src.sin_port, 378 &dst.sin_addr, dst.sin_port, 379 pcblist[i].ki_tstate, name, 380 pcblist[i].ki_pflags, NULL); 381 } 382 383 free(pcblist); 384 385 if (strcmp(name, "tcp") == 0) { 386 struct timeval t; 387 timebase(&t); 388 gettimeofday(&now, NULL); 389 timersub(&now, &t, &now); 390 show_vtw_v4(print_vtw_v4); 391 } 392 } 393 394 /* 395 * Dump TCP statistics structure. 396 */ 397 void 398 tcp_stats(u_long off, const char *name) 399 { 400 uint64_t tcpstat[TCP_NSTATS]; 401 402 if (use_sysctl) { 403 size_t size = sizeof(tcpstat); 404 405 if (prog_sysctlbyname("net.inet.tcp.stats", tcpstat, &size, 406 NULL, 0) == -1 && errno != ENOMEM) 407 return; 408 } else { 409 warnx("%s stats not available via KVM.", name); 410 return; 411 } 412 413 printf ("%s:\n", name); 414 415 #define ps(f, m) if (tcpstat[f] || sflag <= 1) \ 416 printf(m, tcpstat[f]) 417 #define p(f, m) if (tcpstat[f] || sflag <= 1) \ 418 printf(m, tcpstat[f], plural(tcpstat[f])) 419 #define p2(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 420 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 421 tcpstat[f2], plural(tcpstat[f2])) 422 #define p2s(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 423 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 424 tcpstat[f2]) 425 #define p3(f, m) if (tcpstat[f] || sflag <= 1) \ 426 printf(m, tcpstat[f], plurales(tcpstat[f])) 427 428 p(TCP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 429 p2(TCP_STAT_SNDPACK,TCP_STAT_SNDBYTE, 430 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s)\n"); 431 p2(TCP_STAT_SNDREXMITPACK, TCP_STAT_SNDREXMITBYTE, 432 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s) retransmitted\n"); 433 p2s(TCP_STAT_SNDACKS, TCP_STAT_DELACK, 434 "\t\t%" PRIu64 " ack-only packet%s (%" PRIu64 " delayed)\n"); 435 p(TCP_STAT_SNDURG, "\t\t%" PRIu64 " URG only packet%s\n"); 436 p(TCP_STAT_SNDPROBE, "\t\t%" PRIu64 " window probe packet%s\n"); 437 p(TCP_STAT_SNDWINUP, "\t\t%" PRIu64 " window update packet%s\n"); 438 p(TCP_STAT_SNDCTRL, "\t\t%" PRIu64 " control packet%s\n"); 439 p(TCP_STAT_SELFQUENCH, 440 "\t\t%" PRIu64 " send attempt%s resulted in self-quench\n"); 441 p(TCP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 442 p2(TCP_STAT_RCVACKPACK, TCP_STAT_RCVACKBYTE, 443 "\t\t%" PRIu64 " ack%s (for %" PRIu64 " byte%s)\n"); 444 p(TCP_STAT_RCVDUPACK, "\t\t%" PRIu64 " duplicate ack%s\n"); 445 p(TCP_STAT_RCVACKTOOMUCH, "\t\t%" PRIu64 " ack%s for unsent data\n"); 446 p2(TCP_STAT_RCVPACK, TCP_STAT_RCVBYTE, 447 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) received in-sequence\n"); 448 p2(TCP_STAT_RCVDUPPACK, TCP_STAT_RCVDUPBYTE, 449 "\t\t%" PRIu64 " completely duplicate packet%s (%" PRIu64 " byte%s)\n"); 450 p(TCP_STAT_PAWSDROP, "\t\t%" PRIu64 " old duplicate packet%s\n"); 451 p2(TCP_STAT_RCVPARTDUPPACK, TCP_STAT_RCVPARTDUPBYTE, 452 "\t\t%" PRIu64 " packet%s with some dup. data (%" PRIu64 " byte%s duped)\n"); 453 p2(TCP_STAT_RCVOOPACK, TCP_STAT_RCVOOBYTE, 454 "\t\t%" PRIu64 " out-of-order packet%s (%" PRIu64 " byte%s)\n"); 455 p2(TCP_STAT_RCVPACKAFTERWIN, TCP_STAT_RCVBYTEAFTERWIN, 456 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) of data after window\n"); 457 p(TCP_STAT_RCVWINPROBE, "\t\t%" PRIu64 " window probe%s\n"); 458 p(TCP_STAT_RCVWINUPD, "\t\t%" PRIu64 " window update packet%s\n"); 459 p(TCP_STAT_RCVAFTERCLOSE, 460 "\t\t%" PRIu64 " packet%s received after close\n"); 461 p(TCP_STAT_RCVBADSUM, 462 "\t\t%" PRIu64 " discarded for bad checksum%s\n"); 463 p(TCP_STAT_RCVBADOFF, 464 "\t\t%" PRIu64 " discarded for bad header offset field%s\n"); 465 ps(TCP_STAT_RCVSHORT, 466 "\t\t%" PRIu64 " discarded because packet too short\n"); 467 p(TCP_STAT_CONNATTEMPT, "\t%" PRIu64 " connection request%s\n"); 468 p(TCP_STAT_ACCEPTS, "\t%" PRIu64 " connection accept%s\n"); 469 p(TCP_STAT_CONNECTS, 470 "\t%" PRIu64 " connection%s established (including accepts)\n"); 471 p2(TCP_STAT_CLOSED, TCP_STAT_DROPS, 472 "\t%" PRIu64 " connection%s closed (including %" PRIu64 " drop%s)\n"); 473 p(TCP_STAT_CONNDROPS, 474 "\t%" PRIu64 " embryonic connection%s dropped\n"); 475 p(TCP_STAT_DELAYED_FREE, "\t%" PRIu64 " delayed free%s of tcpcb\n"); 476 p2(TCP_STAT_RTTUPDATED, TCP_STAT_SEGSTIMED, 477 "\t%" PRIu64 " segment%s updated rtt (of %" PRIu64 " attempt%s)\n"); 478 p(TCP_STAT_REXMTTIMEO, "\t%" PRIu64 " retransmit timeout%s\n"); 479 p(TCP_STAT_TIMEOUTDROP, 480 "\t\t%" PRIu64 " connection%s dropped by rexmit timeout\n"); 481 p2(TCP_STAT_PERSISTTIMEO, TCP_STAT_PERSISTDROPS, 482 "\t%" PRIu64 " persist timeout%s (resulting in %" PRIu64 " dropped " 483 "connection%s)\n"); 484 p(TCP_STAT_KEEPTIMEO, "\t%" PRIu64 " keepalive timeout%s\n"); 485 p(TCP_STAT_KEEPPROBE, "\t\t%" PRIu64 " keepalive probe%s sent\n"); 486 p(TCP_STAT_KEEPDROPS, 487 "\t\t%" PRIu64 " connection%s dropped by keepalive\n"); 488 p(TCP_STAT_PREDACK, "\t%" PRIu64 " correct ACK header prediction%s\n"); 489 p(TCP_STAT_PREDDAT, 490 "\t%" PRIu64 " correct data packet header prediction%s\n"); 491 p3(TCP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 492 ps(TCP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 493 p(TCP_STAT_CONNSDRAINED, 494 "\t%" PRIu64 " connection%s drained due to memory shortage\n"); 495 p(TCP_STAT_PMTUBLACKHOLE, 496 "\t%" PRIu64 " PMTUD blackhole%s detected\n"); 497 498 p(TCP_STAT_BADSYN, "\t%" PRIu64 " bad connection attempt%s\n"); 499 ps(TCP_STAT_SC_ADDED, "\t%" PRIu64 " SYN cache entries added\n"); 500 p(TCP_STAT_SC_COLLISIONS, "\t\t%" PRIu64 " hash collision%s\n"); 501 ps(TCP_STAT_SC_COMPLETED, "\t\t%" PRIu64 " completed\n"); 502 ps(TCP_STAT_SC_ABORTED, 503 "\t\t%" PRIu64 " aborted (no space to build PCB)\n"); 504 ps(TCP_STAT_SC_TIMED_OUT, "\t\t%" PRIu64 " timed out\n"); 505 ps(TCP_STAT_SC_OVERFLOWED, 506 "\t\t%" PRIu64 " dropped due to overflow\n"); 507 ps(TCP_STAT_SC_BUCKETOVERFLOW, 508 "\t\t%" PRIu64 " dropped due to bucket overflow\n"); 509 ps(TCP_STAT_SC_RESET, "\t\t%" PRIu64 " dropped due to RST\n"); 510 ps(TCP_STAT_SC_UNREACH, 511 "\t\t%" PRIu64 " dropped due to ICMP unreachable\n"); 512 ps(TCP_STAT_SC_DELAYED_FREE, 513 "\t\t%" PRIu64 " delayed free of SYN cache entries\n"); 514 p(TCP_STAT_SC_RETRANSMITTED, 515 "\t%" PRIu64 " SYN,ACK%s retransmitted\n"); 516 p(TCP_STAT_SC_DUPESYN, 517 "\t%" PRIu64 " duplicate SYN%s received for entries " 518 "already in the cache\n"); 519 p(TCP_STAT_SC_DROPPED, 520 "\t%" PRIu64 " SYN%s dropped (no route or no space)\n"); 521 p(TCP_STAT_BADSIG, "\t%" PRIu64 " packet%s with bad signature\n"); 522 p(TCP_STAT_GOODSIG, "\t%" PRIu64 " packet%s with good signature\n"); 523 524 p(TCP_STAT_ECN_SHS, "\t%" PRIu64 " successful ECN handshake%s\n"); 525 p(TCP_STAT_ECN_CE, "\t%" PRIu64 " packet%s with ECN CE bit\n"); 526 p(TCP_STAT_ECN_ECT, "\t%" PRIu64 " packet%s ECN ECT(0) bit\n"); 527 #undef p 528 #undef ps 529 #undef p2 530 #undef p2s 531 #undef p3 532 show_vtw_stats(); 533 } 534 535 /* 536 * Dump UDP statistics structure. 537 */ 538 void 539 udp_stats(u_long off, const char *name) 540 { 541 uint64_t udpstat[UDP_NSTATS]; 542 uint64_t delivered; 543 544 if (use_sysctl) { 545 size_t size = sizeof(udpstat); 546 547 if (prog_sysctlbyname("net.inet.udp.stats", udpstat, &size, 548 NULL, 0) == -1 && errno != ENOMEM) 549 return; 550 } else { 551 warnx("%s stats not available via KVM.", name); 552 return; 553 } 554 555 printf ("%s:\n", name); 556 557 #define ps(f, m) if (udpstat[f] || sflag <= 1) \ 558 printf(m, udpstat[f]) 559 #define p(f, m) if (udpstat[f] || sflag <= 1) \ 560 printf(m, udpstat[f], plural(udpstat[f])) 561 #define p3(f, m) if (udpstat[f] || sflag <= 1) \ 562 printf(m, udpstat[f], plurales(udpstat[f])) 563 564 p(UDP_STAT_IPACKETS, "\t%" PRIu64 " datagram%s received\n"); 565 ps(UDP_STAT_HDROPS, "\t%" PRIu64 " with incomplete header\n"); 566 ps(UDP_STAT_BADLEN, "\t%" PRIu64 " with bad data length field\n"); 567 ps(UDP_STAT_BADSUM, "\t%" PRIu64 " with bad checksum\n"); 568 ps(UDP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 569 p(UDP_STAT_NOPORTBCAST, "\t%" PRIu64 570 " broadcast/multicast datagram%s dropped due to no socket\n"); 571 ps(UDP_STAT_FULLSOCK, "\t%" PRIu64 572 " dropped due to full socket buffers\n"); 573 delivered = udpstat[UDP_STAT_IPACKETS] - 574 udpstat[UDP_STAT_HDROPS] - 575 udpstat[UDP_STAT_BADLEN] - 576 udpstat[UDP_STAT_BADSUM] - 577 udpstat[UDP_STAT_NOPORT] - 578 udpstat[UDP_STAT_NOPORTBCAST] - 579 udpstat[UDP_STAT_FULLSOCK]; 580 if (delivered || sflag <= 1) 581 printf("\t%" PRIu64 " delivered\n", delivered); 582 p3(UDP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 583 p(UDP_STAT_OPACKETS, "\t%" PRIu64 " datagram%s output\n"); 584 585 #undef ps 586 #undef p 587 #undef p3 588 } 589 590 /* 591 * Dump IP statistics structure. 592 */ 593 void 594 ip_stats(u_long off, const char *name) 595 { 596 uint64_t ipstat[IP_NSTATS]; 597 598 if (use_sysctl) { 599 size_t size = sizeof(ipstat); 600 601 if (prog_sysctlbyname("net.inet.ip.stats", ipstat, &size, 602 NULL, 0) == -1 && errno != ENOMEM) 603 return; 604 } else { 605 warnx("%s stats not available via KVM.", name); 606 return; 607 } 608 609 printf("%s:\n", name); 610 611 #define ps(f, m) if (ipstat[f] || sflag <= 1) \ 612 printf(m, ipstat[f]) 613 #define p(f, m) if (ipstat[f] || sflag <= 1) \ 614 printf(m, ipstat[f], plural(ipstat[f])) 615 616 p(IP_STAT_TOTAL, "\t%" PRIu64 " total packet%s received\n"); 617 p(IP_STAT_BADSUM, "\t%" PRIu64 " bad header checksum%s\n"); 618 ps(IP_STAT_TOOSMALL, "\t%" PRIu64 " with size smaller than minimum\n"); 619 ps(IP_STAT_TOOSHORT, "\t%" PRIu64 " with data size < data length\n"); 620 ps(IP_STAT_TOOLONG, 621 "\t%" PRIu64 " with length > max ip packet size\n"); 622 ps(IP_STAT_BADHLEN, "\t%" PRIu64 " with header length < data size\n"); 623 ps(IP_STAT_BADLEN, "\t%" PRIu64 " with data length < header length\n"); 624 ps(IP_STAT_BADOPTIONS, "\t%" PRIu64 " with bad options\n"); 625 ps(IP_STAT_BADVERS, "\t%" PRIu64 " with incorrect version number\n"); 626 p(IP_STAT_FRAGMENTS, "\t%" PRIu64 " fragment%s received\n"); 627 p(IP_STAT_FRAGDROPPED, 628 "\t%" PRIu64 " fragment%s dropped (dup or out of space)\n"); 629 p(IP_STAT_RCVMEMDROP, 630 "\t%" PRIu64 " fragment%s dropped (out of ipqent)\n"); 631 p(IP_STAT_BADFRAGS, "\t%" PRIu64 " malformed fragment%s dropped\n"); 632 p(IP_STAT_FRAGTIMEOUT, 633 "\t%" PRIu64 " fragment%s dropped after timeout\n"); 634 p(IP_STAT_REASSEMBLED, "\t%" PRIu64 " packet%s reassembled ok\n"); 635 p(IP_STAT_DELIVERED, "\t%" PRIu64 " packet%s for this host\n"); 636 p(IP_STAT_NOPROTO, 637 "\t%" PRIu64 " packet%s for unknown/unsupported protocol\n"); 638 p(IP_STAT_FORWARD, "\t%" PRIu64 " packet%s forwarded"); 639 p(IP_STAT_FASTFORWARD, " (%" PRIu64 " packet%s fast forwarded)"); 640 if (ipstat[IP_STAT_FORWARD] || sflag <= 1) 641 putchar('\n'); 642 p(IP_STAT_CANTFORWARD, "\t%" PRIu64 " packet%s not forwardable\n"); 643 p(IP_STAT_REDIRECTSENT, "\t%" PRIu64 " redirect%s sent\n"); 644 p(IP_STAT_NOGIF, "\t%" PRIu64 " packet%s no matching gif found\n"); 645 p(IP_STAT_NOIPSEC, 646 "\t%" PRIu64 " packet%s no matching ipsecif found\n"); 647 p(IP_STAT_LOCALOUT, "\t%" PRIu64 " packet%s sent from this host\n"); 648 p(IP_STAT_RAWOUT, 649 "\t%" PRIu64 " packet%s sent with fabricated ip header\n"); 650 p(IP_STAT_ODROPPED, 651 "\t%" PRIu64 " output packet%s dropped due to no bufs, etc.\n"); 652 p(IP_STAT_NOROUTE, 653 "\t%" PRIu64 " output packet%s discarded due to no route\n"); 654 p(IP_STAT_FRAGMENTED, "\t%" PRIu64 " output datagram%s fragmented\n"); 655 p(IP_STAT_OFRAGMENTS, "\t%" PRIu64 " fragment%s created\n"); 656 p(IP_STAT_CANTFRAG, 657 "\t%" PRIu64 " datagram%s that can't be fragmented\n"); 658 p(IP_STAT_BADADDR, 659 "\t%" PRIu64 " datagram%s with bad address in header\n"); 660 p(IP_STAT_PFILDROP_IN, 661 "\t%" PRIu64 " input packet%s dropped by pfil\n"); 662 p(IP_STAT_PFILDROP_OUT, 663 "\t%" PRIu64 " output packet%s dropped by pfil\n"); 664 p(IP_STAT_IPSECDROP_IN, 665 "\t%" PRIu64 " input packet%s dropped by IPsec\n"); 666 p(IP_STAT_IPSECDROP_OUT, 667 "\t%" PRIu64 " output packet%s dropped by IPsec\n"); 668 p(IP_STAT_IFDROP, 669 "\t%" PRIu64 " input packet%s dropped due to interface state\n"); 670 p(IP_STAT_TIMXCEED, 671 "\t%" PRIu64 " packet%s dropped due to TTL exceeded\n"); 672 p(IP_STAT_IFNOADDR, 673 "\t%" PRIu64 " output packet%s dropped (no IP address)\n"); 674 p(IP_STAT_RTREJECT, 675 "\t%" PRIu64 " output packet%s discarded due to reject route\n"); 676 p(IP_STAT_BCASTDENIED, 677 "\t%" PRIu64 " output packet%s dropped (broadcast prohibited)\n"); 678 #undef ps 679 #undef p 680 } 681 682 /* 683 * Dump ICMP statistics. 684 */ 685 void 686 icmp_stats(u_long off, const char *name) 687 { 688 uint64_t icmpstat[ICMP_NSTATS]; 689 int i, first; 690 691 if (use_sysctl) { 692 size_t size = sizeof(icmpstat); 693 694 if (prog_sysctlbyname("net.inet.icmp.stats", icmpstat, &size, 695 NULL, 0) == -1 && errno != ENOMEM) 696 return; 697 } else { 698 warnx("%s stats not available via KVM.", name); 699 return; 700 } 701 702 printf("%s:\n", name); 703 704 #define p(f, m) if (icmpstat[f] || sflag <= 1) \ 705 printf(m, icmpstat[f], plural(icmpstat[f])) 706 707 p(ICMP_STAT_ERROR, "\t%" PRIu64 " call%s to icmp_error\n"); 708 p(ICMP_STAT_OLDICMP, "\t%" PRIu64 709 " error%s not generated because old message was icmp\n"); 710 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 711 if (icmpstat[ICMP_STAT_OUTHIST + i] != 0) { 712 if (first) { 713 printf("\tOutput histogram:\n"); 714 first = 0; 715 } 716 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 717 icmpstat[ICMP_STAT_OUTHIST + i]); 718 } 719 p(ICMP_STAT_BADCODE, "\t%" PRIu64 " message%s with bad code fields\n"); 720 p(ICMP_STAT_TOOSHORT, "\t%" PRIu64 " message%s < minimum length\n"); 721 p(ICMP_STAT_CHECKSUM, "\t%" PRIu64 " bad checksum%s\n"); 722 p(ICMP_STAT_BADLEN, "\t%" PRIu64 " message%s with bad length\n"); 723 p(ICMP_STAT_BMCASTECHO, 724 "\t%" PRIu64 " multicast echo request%s ignored\n"); 725 p(ICMP_STAT_BMCASTTSTAMP, 726 "\t%" PRIu64 " multicast timestamp request%s ignored\n"); 727 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 728 if (icmpstat[ICMP_STAT_INHIST + i] != 0) { 729 if (first) { 730 printf("\tInput histogram:\n"); 731 first = 0; 732 } 733 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 734 icmpstat[ICMP_STAT_INHIST + i]); 735 } 736 p(ICMP_STAT_REFLECT, "\t%" PRIu64 " message response%s generated\n"); 737 p(ICMP_STAT_PMTUCHG, "\t%" PRIu64 " path MTU change%s\n"); 738 #undef p 739 } 740 741 /* 742 * Dump IGMP statistics structure. 743 */ 744 void 745 igmp_stats(u_long off, const char *name) 746 { 747 uint64_t igmpstat[IGMP_NSTATS]; 748 749 if (use_sysctl) { 750 size_t size = sizeof(igmpstat); 751 752 if (prog_sysctlbyname("net.inet.igmp.stats", igmpstat, &size, 753 NULL, 0) == -1 && errno != ENOMEM) 754 return; 755 } else { 756 warnx("%s stats not available via KVM.", name); 757 return; 758 } 759 760 printf("%s:\n", name); 761 762 #define p(f, m) if (igmpstat[f] || sflag <= 1) \ 763 printf(m, igmpstat[f], plural(igmpstat[f])) 764 #define py(f, m) if (igmpstat[f] || sflag <= 1) \ 765 printf(m, igmpstat[f], igmpstat[f] != 1 ? "ies" : "y") 766 767 p(IGMP_STAT_RCV_TOTAL, "\t%" PRIu64 " message%s received\n"); 768 p(IGMP_STAT_RCV_TOOSHORT, 769 "\t%" PRIu64 " message%s received with too few bytes\n"); 770 p(IGMP_STAT_RCV_BADSUM, 771 "\t%" PRIu64 " message%s received with bad checksum\n"); 772 py(IGMP_STAT_RCV_QUERIES, 773 "\t%" PRIu64 " membership quer%s received\n"); 774 py(IGMP_STAT_RCV_BADQUERIES, 775 "\t%" PRIu64 " membership quer%s received with invalid field(s)\n"); 776 p(IGMP_STAT_RCV_REPORTS, 777 "\t%" PRIu64 " membership report%s received\n"); 778 p(IGMP_STAT_RCV_BADREPORTS, "\t%" PRIu64 779 " membership report%s received with invalid field(s)\n"); 780 p(IGMP_STAT_RCV_OURREPORTS, "\t%" PRIu64 781 " membership report%s received for groups to which we belong\n"); 782 p(IGMP_STAT_SND_REPORTS, 783 "\t%" PRIu64 " membership report%s sent\n"); 784 #undef p 785 #undef py 786 } 787 788 /* 789 * Dump CARP statistics structure. 790 */ 791 void 792 carp_stats(u_long off, const char *name) 793 { 794 uint64_t carpstat[CARP_NSTATS]; 795 796 if (use_sysctl) { 797 size_t size = sizeof(carpstat); 798 799 if (prog_sysctlbyname("net.inet.carp.stats", carpstat, &size, 800 NULL, 0) == -1 && errno != ENOMEM) 801 return; 802 } else { 803 warnx("%s stats not available via KVM.", name); 804 return; 805 } 806 807 printf("%s:\n", name); 808 809 #define p(f, m) if (carpstat[f] || sflag <= 1) \ 810 printf(m, carpstat[f], plural(carpstat[f])) 811 #define p2(f, m) if (carpstat[f] || sflag <= 1) \ 812 printf(m, carpstat[f]) 813 814 p(CARP_STAT_IPACKETS, "\t%" PRIu64 " packet%s received (IPv4)\n"); 815 p(CARP_STAT_IPACKETS6, "\t%" PRIu64 " packet%s received (IPv6)\n"); 816 p(CARP_STAT_BADIF, 817 "\t\t%" PRIu64 " packet%s discarded for bad interface\n"); 818 p(CARP_STAT_BADTTL, 819 "\t\t%" PRIu64 " packet%s discarded for wrong TTL\n"); 820 p(CARP_STAT_HDROPS, "\t\t%" PRIu64 " packet%s shorter than header\n"); 821 p(CARP_STAT_BADSUM, 822 "\t\t%" PRIu64 " packet%s discarded for bad checksum\n"); 823 p(CARP_STAT_BADVER, 824 "\t\t%" PRIu64 " packet%s discarded with a bad version\n"); 825 p2(CARP_STAT_BADLEN, 826 "\t\t%" PRIu64 " discarded because packet was too short\n"); 827 p(CARP_STAT_BADAUTH, 828 "\t\t%" PRIu64 " packet%s discarded for bad authentication\n"); 829 p(CARP_STAT_BADVHID, 830 "\t\t%" PRIu64 " packet%s discarded for bad vhid\n"); 831 p(CARP_STAT_BADADDRS, "\t\t%" PRIu64 832 " packet%s discarded because of a bad address list\n"); 833 p(CARP_STAT_OPACKETS, "\t%" PRIu64 " packet%s sent (IPv4)\n"); 834 p(CARP_STAT_OPACKETS6, "\t%" PRIu64 " packet%s sent (IPv6)\n"); 835 p2(CARP_STAT_ONOMEM, 836 "\t\t%" PRIu64 " send failed due to mbuf memory error\n"); 837 #undef p 838 #undef p2 839 } 840 841 /* 842 * Dump PIM statistics structure. 843 */ 844 void 845 pim_stats(u_long off, const char *name) 846 { 847 struct pimstat pimstat; 848 849 if (off == 0) 850 return; 851 if (kread(off, (char *)&pimstat, sizeof (pimstat)) != 0) { 852 /* XXX: PIM is probably not enabled in the kernel */ 853 return; 854 } 855 856 printf("%s:\n", name); 857 858 #define p(f, m) if (pimstat.f || sflag <= 1) \ 859 printf(m, pimstat.f, plural(pimstat.f)) 860 861 p(pims_rcv_total_msgs, "\t%" PRIu64 " message%s received\n"); 862 p(pims_rcv_total_bytes, "\t%" PRIu64 " byte%s received\n"); 863 p(pims_rcv_tooshort, 864 "\t%" PRIu64 " message%s received with too few bytes\n"); 865 p(pims_rcv_badsum, 866 "\t%" PRIu64 " message%s received with bad checksum\n"); 867 p(pims_rcv_badversion, 868 "\t%" PRIu64 " message%s received with bad version\n"); 869 p(pims_rcv_registers_msgs, 870 "\t%" PRIu64 " data register message%s received\n"); 871 p(pims_rcv_registers_bytes, 872 "\t%" PRIu64 " data register byte%s received\n"); 873 p(pims_rcv_registers_wrongiif, 874 "\t%" PRIu64 " data register message%s received on wrong iif\n"); 875 p(pims_rcv_badregisters, 876 "\t%" PRIu64 " bad register%s received\n"); 877 p(pims_snd_registers_msgs, 878 "\t%" PRIu64 " data register message%s sent\n"); 879 p(pims_snd_registers_bytes, 880 "\t%" PRIu64 " data register byte%s sent\n"); 881 #undef p 882 } 883 884 /* 885 * Dump the ARP statistics structure. 886 */ 887 void 888 arp_stats(u_long off, const char *name) 889 { 890 uint64_t arpstat[ARP_NSTATS]; 891 892 if (use_sysctl) { 893 size_t size = sizeof(arpstat); 894 895 if (prog_sysctlbyname("net.inet.arp.stats", arpstat, &size, 896 NULL, 0) == -1 && errno != ENOMEM) 897 return; 898 } else { 899 warnx("%s stats not available via KVM.", name); 900 return; 901 } 902 903 printf("%s:\n", name); 904 905 #define ps(f, m) if (arpstat[f] || sflag <= 1) \ 906 printf(m, arpstat[f]) 907 #define p(f, m) if (arpstat[f] || sflag <= 1) \ 908 printf(m, arpstat[f], plural(arpstat[f])) 909 910 p(ARP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 911 p(ARP_STAT_SNDREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 912 p(ARP_STAT_SENDREQUEST, "\t\t%" PRIu64 " request packet%s\n"); 913 914 p(ARP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 915 p(ARP_STAT_RCVREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 916 p(ARP_STAT_RCVREQUEST, "\t\t%" PRIu64 " valid request packet%s\n"); 917 p(ARP_STAT_RCVMCAST, "\t\t%" PRIu64 " broadcast/multicast packet%s\n"); 918 p(ARP_STAT_RCVBADPROTO, 919 "\t\t%" PRIu64 " packet%s with unknown protocol type\n"); 920 p(ARP_STAT_RCVBADLEN, 921 "\t\t%" PRIu64 " packet%s with bad (short) length\n"); 922 p(ARP_STAT_RCVZEROTPA, 923 "\t\t%" PRIu64 " packet%s with null target IP address\n"); 924 p(ARP_STAT_RCVZEROSPA, 925 "\t\t%" PRIu64 " packet%s with null source IP address\n"); 926 ps(ARP_STAT_RCVNOINT, 927 "\t\t%" PRIu64 " could not be mapped to an interface\n"); 928 p(ARP_STAT_RCVLOCALSHA, 929 "\t\t%" PRIu64 " packet%s sourced from a local hardware " 930 "address\n"); 931 p(ARP_STAT_RCVBCASTSHA, "\t\t%" PRIu64 " packet%s with a broadcast " 932 "source hardware address\n"); 933 p(ARP_STAT_RCVLOCALSPA, 934 "\t\t%" PRIu64 " duplicate%s for a local IP address\n"); 935 p(ARP_STAT_RCVOVERPERM, 936 "\t\t%" PRIu64 " attempt%s to overwrite a static entry\n"); 937 p(ARP_STAT_RCVOVERINT, 938 "\t\t%" PRIu64 " packet%s received on wrong interface\n"); 939 p(ARP_STAT_RCVOVER, "\t\t%" PRIu64 " entry%s overwritten\n"); 940 p(ARP_STAT_RCVLENCHG, 941 "\t\t%" PRIu64 " change%s in hardware address length\n"); 942 943 p(ARP_STAT_DFRTOTAL, 944 "\t%" PRIu64 " packet%s deferred pending ARP resolution\n"); 945 ps(ARP_STAT_DFRSENT, "\t\t%" PRIu64 " sent\n"); 946 ps(ARP_STAT_DFRDROPPED, "\t\t%" PRIu64 " dropped\n"); 947 948 p(ARP_STAT_ALLOCFAIL, "\t%" PRIu64 " failure%s to allocate llinfo\n"); 949 950 #undef ps 951 #undef p 952 } 953 954 /* 955 * Pretty print an Internet address (net address + port). 956 * Take numeric_addr and numeric_port into consideration. 957 */ 958 void 959 inetprint(struct in_addr *in, uint16_t port, const char *proto, 960 int port_numeric) 961 { 962 struct servent *sp = 0; 963 char line[80], *cp; 964 size_t space; 965 966 (void)snprintf(line, sizeof line, "%.*s.", 967 (Aflag && !numeric_addr) ? 12 : 16, inetname(in)); 968 cp = strchr(line, '\0'); 969 if (!port_numeric && port) 970 sp = getservbyport((int)port, proto); 971 space = sizeof line - (cp-line); 972 if (sp || port == 0) 973 (void)snprintf(cp, space, "%s", sp ? sp->s_name : "*"); 974 else 975 (void)snprintf(cp, space, "%u", ntohs(port)); 976 (void)printf(" %-*.*s", width, width, line); 977 } 978 979 /* 980 * Construct an Internet address representation. 981 * If numeric_addr has been supplied, give 982 * numeric value, otherwise try for symbolic name. 983 */ 984 char * 985 inetname(struct in_addr *inp) 986 { 987 char *cp; 988 static char line[50]; 989 struct hostent *hp; 990 struct netent *np; 991 static char domain[MAXHOSTNAMELEN + 1]; 992 static int first = 1; 993 994 if (first && !numeric_addr) { 995 first = 0; 996 if (gethostname(domain, sizeof domain) == 0) { 997 domain[sizeof(domain) - 1] = '\0'; 998 if ((cp = strchr(domain, '.'))) 999 (void) strlcpy(domain, cp + 1, sizeof(domain)); 1000 else 1001 domain[0] = 0; 1002 } else 1003 domain[0] = 0; 1004 } 1005 cp = 0; 1006 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 1007 int net = inet_netof(*inp); 1008 int lna = inet_lnaof(*inp); 1009 1010 if (lna == INADDR_ANY) { 1011 np = getnetbyaddr(net, AF_INET); 1012 if (np) 1013 cp = np->n_name; 1014 } 1015 if (cp == 0) { 1016 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 1017 if (hp) { 1018 if ((cp = strchr(hp->h_name, '.')) && 1019 !strcmp(cp + 1, domain)) 1020 *cp = 0; 1021 cp = hp->h_name; 1022 } 1023 } 1024 } 1025 if (inp->s_addr == INADDR_ANY) 1026 strlcpy(line, "*", sizeof line); 1027 else if (cp) 1028 strlcpy(line, cp, sizeof line); 1029 else { 1030 inp->s_addr = ntohl(inp->s_addr); 1031 #define C(x) ((x) & 0xff) 1032 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 1033 C(inp->s_addr >> 24), C(inp->s_addr >> 16), 1034 C(inp->s_addr >> 8), C(inp->s_addr)); 1035 #undef C 1036 } 1037 return line; 1038 } 1039 1040 /* 1041 * Dump the contents of a TCP PCB. 1042 */ 1043 void 1044 tcp_dump(u_long off, const char *name, u_long pcbaddr) 1045 { 1046 callout_impl_t *ci; 1047 struct tcpcb tcpcb; 1048 int i, hardticks; 1049 struct kinfo_pcb *pcblist; 1050 size_t j, len; 1051 1052 if (use_sysctl) 1053 pcblist = getpcblist_sysctl(name, &len); 1054 else 1055 pcblist = getpcblist_kmem(off, name, &len); 1056 1057 for (j = 0; j < len; j++) 1058 if (pcblist[j].ki_ppcbaddr == pcbaddr) 1059 break; 1060 free(pcblist); 1061 1062 if (j == len) 1063 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 1064 1065 kread(pcbaddr, (char *)&tcpcb, sizeof(tcpcb)); 1066 hardticks = get_hardticks(); 1067 1068 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 1069 1070 printf("Timers:\n"); 1071 for (i = 0; i < TCPT_NTIMERS; i++) { 1072 char buf[128]; 1073 ci = (callout_impl_t *)&tcpcb.t_timer[i]; 1074 snprintb(buf, sizeof(buf), CALLOUT_FMT, ci->c_flags); 1075 printf("\t%s\t%s", tcptimers[i], buf); 1076 if (ci->c_flags & CALLOUT_PENDING) 1077 printf("\t%d\n", ci->c_time - hardticks); 1078 else 1079 printf("\n"); 1080 } 1081 printf("\n\n"); 1082 1083 if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) 1084 printf("State: %d", tcpcb.t_state); 1085 else 1086 printf("State: %s", tcpstates[tcpcb.t_state]); 1087 printf(", flags 0x%x, inpcb 0x%lx, in6pcb 0x%lx\n\n", tcpcb.t_flags, 1088 (u_long)tcpcb.t_inpcb, (u_long)tcpcb.t_in6pcb); 1089 1090 printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcpcb.t_rxtshift, 1091 tcpcb.t_rxtcur, tcpcb.t_dupacks); 1092 printf("peermss %u, ourmss %u, segsz %u, segqlen %u\n\n", 1093 tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz, tcpcb.t_segqlen); 1094 1095 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1096 tcpcb.snd_una, tcpcb.snd_nxt, tcpcb.snd_up); 1097 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %lu\n\n", 1098 tcpcb.snd_wl1, tcpcb.snd_wl2, tcpcb.iss, tcpcb.snd_wnd); 1099 1100 printf("rcv_wnd %lu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1101 tcpcb.rcv_wnd, tcpcb.rcv_nxt, tcpcb.rcv_up, tcpcb.irs); 1102 1103 printf("rcv_adv %u, snd_max %u, snd_cwnd %lu, snd_ssthresh %lu\n", 1104 tcpcb.rcv_adv, tcpcb.snd_max, tcpcb.snd_cwnd, tcpcb.snd_ssthresh); 1105 1106 printf("rcvtime %u, rtttime %u, rtseq %u, srtt %d, rttvar %d, " 1107 "rttmin %d, max_sndwnd %lu\n\n", tcpcb.t_rcvtime, tcpcb.t_rtttime, 1108 tcpcb.t_rtseq, tcpcb.t_srtt, tcpcb.t_rttvar, tcpcb.t_rttmin, 1109 tcpcb.max_sndwnd); 1110 1111 printf("oobflags %d, iobc %d, softerror %d\n\n", tcpcb.t_oobflags, 1112 tcpcb.t_iobc, tcpcb.t_softerror); 1113 1114 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1115 tcpcb.snd_scale, tcpcb.rcv_scale, tcpcb.request_r_scale, 1116 tcpcb.requested_s_scale); 1117 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1118 tcpcb.ts_recent, tcpcb.ts_recent_age, tcpcb.last_ack_sent); 1119 } 1120