inet.c revision 1.107
1 /* $NetBSD: inet.c,v 1.107 2016/12/23 06:22:00 mrg 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 1.107 2016/12/23 06:22:00 mrg 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/tcpip.h> 70 #include <netinet/tcp_seq.h> 71 #define TCPSTATES 72 #include <netinet/tcp_fsm.h> 73 #define TCPTIMERS 74 #include <netinet/tcp_timer.h> 75 #include <netinet/tcp_var.h> 76 #include <netinet/tcp_debug.h> 77 #include <netinet/udp.h> 78 #include <netinet/ip_carp.h> 79 #include <netinet/udp_var.h> 80 #include <netinet/tcp_vtw.h> 81 82 #include <arpa/inet.h> 83 #include <kvm.h> 84 #include <netdb.h> 85 #include <stdio.h> 86 #include <string.h> 87 #include <unistd.h> 88 #include <stdlib.h> 89 #include <err.h> 90 #include <util.h> 91 #include <errno.h> 92 93 #include "netstat.h" 94 #include "vtw.h" 95 #include "prog_ops.h" 96 97 char *inetname(struct in_addr *); 98 void inetprint(struct in_addr *, u_int16_t, const char *, int); 99 100 void print_vtw_v4(const vtw_t *); 101 102 /* 103 * Print a summary of connections related to an Internet 104 * protocol. For TCP, also give state of connection. 105 * Listening processes (aflag) are suppressed unless the 106 * -a (all) flag is specified. 107 */ 108 static int width; 109 static int compact; 110 111 /* VTW-related variables. */ 112 static struct timeval now; 113 114 static void 115 protoprhdr(void) 116 { 117 printf("Active Internet connections"); 118 if (aflag) 119 printf(" (including servers)"); 120 putchar('\n'); 121 if (Aflag) 122 printf("%-8.8s ", "PCB"); 123 printf( 124 Vflag ? "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %-13.13s Expires\n" 125 : "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %s\n", 126 "Proto", "Recv-Q", "Send-Q", compact ? "" : " ", 127 width, width, "Local Address", 128 width, width, "Foreign Address", 129 "State"); 130 } 131 132 static void 133 protopr0(intptr_t ppcb, u_long rcv_sb_cc, u_long snd_sb_cc, 134 struct in_addr *laddr, u_int16_t lport, 135 struct in_addr *faddr, u_int16_t fport, 136 short t_state, const char *name, int inp_flags, 137 const struct timeval *expires) 138 { 139 static const char *shorttcpstates[] = { 140 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 141 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 142 "LASTAK", "FWAIT2", "TMWAIT", 143 }; 144 int istcp; 145 146 istcp = strcmp(name, "tcp") == 0; 147 148 if (Aflag) { 149 printf("%8" PRIxPTR " ", ppcb); 150 } 151 printf("%-5.5s %6ld %6ld%s", name, rcv_sb_cc, snd_sb_cc, 152 compact ? "" : " "); 153 if (numeric_port) { 154 inetprint(laddr, lport, name, 1); 155 inetprint(faddr, fport, name, 1); 156 } else if (inp_flags & INP_ANONPORT) { 157 inetprint(laddr, lport, name, 1); 158 inetprint(faddr, fport, name, 0); 159 } else { 160 inetprint(laddr, lport, name, 0); 161 inetprint(faddr, fport, name, 0); 162 } 163 if (istcp) { 164 if (t_state < 0 || t_state >= TCP_NSTATES) 165 printf(" %d", t_state); 166 else 167 printf(" %s", compact ? shorttcpstates[t_state] : 168 tcpstates[t_state]); 169 } 170 if (Vflag && expires != NULL) { 171 if (expires->tv_sec == 0 && expires->tv_usec == -1) 172 printf(" reclaimed"); 173 else { 174 struct timeval delta; 175 176 timersub(expires, &now, &delta); 177 printf(" %.3fms", 178 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 179 } 180 } 181 putchar('\n'); 182 } 183 184 static void 185 dbg_printf(const char *fmt, ...) 186 { 187 return; 188 } 189 190 void 191 print_vtw_v4(const vtw_t *vtw) 192 { 193 const vtw_v4_t *v4 = (const vtw_v4_t *)vtw; 194 struct timeval delta; 195 struct in_addr la, fa; 196 char buf[2][32]; 197 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 198 199 la.s_addr = v4->laddr; 200 fa.s_addr = v4->faddr; 201 202 snprintf(&buf[0][0], 32, "%s", inet_ntoa(la)); 203 snprintf(&buf[1][0], 32, "%s", inet_ntoa(fa)); 204 205 timersub(&vtw->expire, &now, &delta); 206 207 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 208 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n" 209 ,buf[0], ntohs(v4->lport) 210 ,buf[1], ntohs(v4->fport)); 211 if (!(Vflag && vflag)) 212 return; 213 } else if (vtw->expire.tv_sec == 0) 214 return; 215 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 216 dbg_printf("%15.15s:%d %15.15s:%d expired\n" 217 ,buf[0], ntohs(v4->lport) 218 ,buf[1], ntohs(v4->fport)); 219 return; 220 } else { 221 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n" 222 ,buf[0], ntohs(v4->lport) 223 ,buf[1], ntohs(v4->fport) 224 ,delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 225 } 226 protopr0(0, 0, 0, 227 &la, v4->lport, 228 &fa, v4->fport, 229 TCPS_TIME_WAIT, "tcp", 0, &vtw->expire); 230 } 231 232 struct kinfo_pcb * 233 getpcblist_sysctl(const char *name, size_t *len) { 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 (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 struct inpcbtable table; 277 struct inpcb_hdr *next, *prev; 278 struct inpcb inpcb; 279 struct tcpcb tcpcb; 280 struct socket sockb; 281 int istcp = strcmp(name, "tcp") == 0; 282 struct kinfo_pcb *pcblist; 283 size_t size = 100, i; 284 struct sockaddr_in sin; 285 struct inpcbqueue *head; 286 287 if (off == 0) { 288 *len = 0; 289 return NULL; 290 } 291 292 kread(off, (char *)&table, sizeof table); 293 head = &table.inpt_queue; 294 next = TAILQ_FIRST(head); 295 prev = TAILQ_END(head); 296 297 if ((pcblist = malloc(size * sizeof(*pcblist))) == NULL) 298 err(1, "malloc"); 299 300 i = 0; 301 while (next != TAILQ_END(head)) { 302 kread((u_long)next, (char *)&inpcb, sizeof inpcb); 303 prev = next; 304 next = TAILQ_NEXT(&inpcb, inp_queue); 305 306 if (inpcb.inp_af != AF_INET) 307 continue; 308 309 kread((u_long)inpcb.inp_socket, (char *)&sockb, sizeof(sockb)); 310 if (istcp) { 311 kread((u_long)inpcb.inp_ppcb, 312 (char *)&tcpcb, sizeof (tcpcb)); 313 } 314 pcblist[i].ki_ppcbaddr = 315 istcp ? (uintptr_t) inpcb.inp_ppcb : (uintptr_t) prev; 316 pcblist[i].ki_rcvq = (uint64_t)sockb.so_rcv.sb_cc; 317 pcblist[i].ki_sndq = (uint64_t)sockb.so_snd.sb_cc; 318 319 sin.sin_addr = inpcb.inp_laddr; 320 sin.sin_port = inpcb.inp_lport; 321 memcpy(&pcblist[i].ki_s, &sin, sizeof(sin)); 322 sin.sin_addr = inpcb.inp_faddr; 323 sin.sin_port = inpcb.inp_fport; 324 memcpy(&pcblist[i].ki_d, &sin, sizeof(sin)); 325 pcblist[i].ki_tstate = tcpcb.t_state; 326 pcblist[i].ki_pflags = inpcb.inp_flags; 327 if (i++ == size) { 328 size += 100; 329 struct kinfo_pcb *n = realloc(pcblist, 330 size * sizeof(*pcblist)); 331 if (n == NULL) 332 err(1, "realloc"); 333 pcblist = n; 334 } 335 } 336 *len = i; 337 return pcblist; 338 } 339 340 void 341 protopr(u_long off, const char *name) 342 { 343 static int first = 1; 344 struct kinfo_pcb *pcblist; 345 size_t i, len; 346 347 compact = 0; 348 if (Aflag) { 349 if (!numeric_addr) 350 width = 18; 351 else { 352 width = 21; 353 compact = 1; 354 } 355 } else 356 width = 22; 357 358 if (use_sysctl) 359 pcblist = getpcblist_sysctl(name, &len); 360 else 361 pcblist = getpcblist_kmem(off, name, &len); 362 363 for (i = 0; i < len; i++) { 364 struct sockaddr_in src, dst; 365 366 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 367 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 368 369 if (!aflag && 370 inet_lnaof(dst.sin_addr) == INADDR_ANY) 371 continue; 372 373 if (first) { 374 protoprhdr(); 375 first = 0; 376 } 377 protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 378 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 379 &src.sin_addr, src.sin_port, 380 &dst.sin_addr, dst.sin_port, 381 pcblist[i].ki_tstate, name, 382 pcblist[i].ki_pflags, NULL); 383 } 384 385 free(pcblist); 386 387 if (strcmp(name, "tcp") == 0) { 388 struct timeval t; 389 timebase(&t); 390 gettimeofday(&now, NULL); 391 timersub(&now, &t, &now); 392 show_vtw_v4(print_vtw_v4); 393 } 394 } 395 396 /* 397 * Dump TCP statistics structure. 398 */ 399 void 400 tcp_stats(u_long off, const char *name) 401 { 402 uint64_t tcpstat[TCP_NSTATS]; 403 404 if (use_sysctl) { 405 size_t size = sizeof(tcpstat); 406 407 if (sysctlbyname("net.inet.tcp.stats", tcpstat, &size, 408 NULL, 0) == -1) 409 return; 410 } else { 411 warnx("%s stats not available via KVM.", name); 412 return; 413 } 414 415 printf ("%s:\n", name); 416 417 #define ps(f, m) if (tcpstat[f] || sflag <= 1) \ 418 printf(m, tcpstat[f]) 419 #define p(f, m) if (tcpstat[f] || sflag <= 1) \ 420 printf(m, tcpstat[f], plural(tcpstat[f])) 421 #define p2(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 422 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 423 tcpstat[f2], plural(tcpstat[f2])) 424 #define p2s(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 425 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 426 tcpstat[f2]) 427 #define p3(f, m) if (tcpstat[f] || sflag <= 1) \ 428 printf(m, tcpstat[f], plurales(tcpstat[f])) 429 430 p(TCP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 431 p2(TCP_STAT_SNDPACK,TCP_STAT_SNDBYTE, 432 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s)\n"); 433 p2(TCP_STAT_SNDREXMITPACK, TCP_STAT_SNDREXMITBYTE, 434 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s) retransmitted\n"); 435 p2s(TCP_STAT_SNDACKS, TCP_STAT_DELACK, 436 "\t\t%" PRIu64 " ack-only packet%s (%" PRIu64 " delayed)\n"); 437 p(TCP_STAT_SNDURG, "\t\t%" PRIu64 " URG only packet%s\n"); 438 p(TCP_STAT_SNDPROBE, "\t\t%" PRIu64 " window probe packet%s\n"); 439 p(TCP_STAT_SNDWINUP, "\t\t%" PRIu64 " window update packet%s\n"); 440 p(TCP_STAT_SNDCTRL, "\t\t%" PRIu64 " control packet%s\n"); 441 p(TCP_STAT_SELFQUENCH, 442 "\t\t%" PRIu64 " send attempt%s resulted in self-quench\n"); 443 p(TCP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 444 p2(TCP_STAT_RCVACKPACK, TCP_STAT_RCVACKBYTE, 445 "\t\t%" PRIu64 " ack%s (for %" PRIu64 " byte%s)\n"); 446 p(TCP_STAT_RCVDUPACK, "\t\t%" PRIu64 " duplicate ack%s\n"); 447 p(TCP_STAT_RCVACKTOOMUCH, "\t\t%" PRIu64 " ack%s for unsent data\n"); 448 p2(TCP_STAT_RCVPACK, TCP_STAT_RCVBYTE, 449 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) received in-sequence\n"); 450 p2(TCP_STAT_RCVDUPPACK, TCP_STAT_RCVDUPBYTE, 451 "\t\t%" PRIu64 " completely duplicate packet%s (%" PRIu64 " byte%s)\n"); 452 p(TCP_STAT_PAWSDROP, "\t\t%" PRIu64 " old duplicate packet%s\n"); 453 p2(TCP_STAT_RCVPARTDUPPACK, TCP_STAT_RCVPARTDUPBYTE, 454 "\t\t%" PRIu64 " packet%s with some dup. data (%" PRIu64 " byte%s duped)\n"); 455 p2(TCP_STAT_RCVOOPACK, TCP_STAT_RCVOOBYTE, 456 "\t\t%" PRIu64 " out-of-order packet%s (%" PRIu64 " byte%s)\n"); 457 p2(TCP_STAT_RCVPACKAFTERWIN, TCP_STAT_RCVBYTEAFTERWIN, 458 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) of data after window\n"); 459 p(TCP_STAT_RCVWINPROBE, "\t\t%" PRIu64 " window probe%s\n"); 460 p(TCP_STAT_RCVWINUPD, "\t\t%" PRIu64 " window update packet%s\n"); 461 p(TCP_STAT_RCVAFTERCLOSE, "\t\t%" PRIu64 " packet%s received after close\n"); 462 p(TCP_STAT_RCVBADSUM, "\t\t%" PRIu64 " discarded for bad checksum%s\n"); 463 p(TCP_STAT_RCVBADOFF, "\t\t%" PRIu64 " discarded for bad header offset field%s\n"); 464 ps(TCP_STAT_RCVSHORT, "\t\t%" PRIu64 " discarded because packet too short\n"); 465 p(TCP_STAT_CONNATTEMPT, "\t%" PRIu64 " connection request%s\n"); 466 p(TCP_STAT_ACCEPTS, "\t%" PRIu64 " connection accept%s\n"); 467 p(TCP_STAT_CONNECTS, 468 "\t%" PRIu64 " connection%s established (including accepts)\n"); 469 p2(TCP_STAT_CLOSED, TCP_STAT_DROPS, 470 "\t%" PRIu64 " connection%s closed (including %" PRIu64 " drop%s)\n"); 471 p(TCP_STAT_CONNDROPS, "\t%" PRIu64 " embryonic connection%s dropped\n"); 472 p(TCP_STAT_DELAYED_FREE, "\t%" PRIu64 " delayed free%s of tcpcb\n"); 473 p2(TCP_STAT_RTTUPDATED, TCP_STAT_SEGSTIMED, 474 "\t%" PRIu64 " segment%s updated rtt (of %" PRIu64 " attempt%s)\n"); 475 p(TCP_STAT_REXMTTIMEO, "\t%" PRIu64 " retransmit timeout%s\n"); 476 p(TCP_STAT_TIMEOUTDROP, 477 "\t\t%" PRIu64 " connection%s dropped by rexmit timeout\n"); 478 p2(TCP_STAT_PERSISTTIMEO, TCP_STAT_PERSISTDROPS, 479 "\t%" PRIu64 " persist timeout%s (resulting in %" PRIu64 " dropped " 480 "connection%s)\n"); 481 p(TCP_STAT_KEEPTIMEO, "\t%" PRIu64 " keepalive timeout%s\n"); 482 p(TCP_STAT_KEEPPROBE, "\t\t%" PRIu64 " keepalive probe%s sent\n"); 483 p(TCP_STAT_KEEPDROPS, "\t\t%" PRIu64 " connection%s dropped by keepalive\n"); 484 p(TCP_STAT_PREDACK, "\t%" PRIu64 " correct ACK header prediction%s\n"); 485 p(TCP_STAT_PREDDAT, "\t%" PRIu64 " correct data packet header prediction%s\n"); 486 p3(TCP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 487 ps(TCP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 488 p(TCP_STAT_CONNSDRAINED, "\t%" PRIu64 " connection%s drained due to memory " 489 "shortage\n"); 490 p(TCP_STAT_PMTUBLACKHOLE, "\t%" PRIu64 " PMTUD blackhole%s detected\n"); 491 492 p(TCP_STAT_BADSYN, "\t%" PRIu64 " bad connection attempt%s\n"); 493 ps(TCP_STAT_SC_ADDED, "\t%" PRIu64 " SYN cache entries added\n"); 494 p(TCP_STAT_SC_COLLISIONS, "\t\t%" PRIu64 " hash collision%s\n"); 495 ps(TCP_STAT_SC_COMPLETED, "\t\t%" PRIu64 " completed\n"); 496 ps(TCP_STAT_SC_ABORTED, "\t\t%" PRIu64 " aborted (no space to build PCB)\n"); 497 ps(TCP_STAT_SC_TIMED_OUT, "\t\t%" PRIu64 " timed out\n"); 498 ps(TCP_STAT_SC_OVERFLOWED, "\t\t%" PRIu64 " dropped due to overflow\n"); 499 ps(TCP_STAT_SC_BUCKETOVERFLOW, "\t\t%" PRIu64 " dropped due to bucket overflow\n"); 500 ps(TCP_STAT_SC_RESET, "\t\t%" PRIu64 " dropped due to RST\n"); 501 ps(TCP_STAT_SC_UNREACH, "\t\t%" PRIu64 " dropped due to ICMP unreachable\n"); 502 ps(TCP_STAT_SC_DELAYED_FREE, "\t\t%" PRIu64 " delayed free of SYN cache " 503 "entries\n"); 504 p(TCP_STAT_SC_RETRANSMITTED, "\t%" PRIu64 " SYN,ACK%s retransmitted\n"); 505 p(TCP_STAT_SC_DUPESYN, "\t%" PRIu64 " duplicate SYN%s received for entries " 506 "already in the cache\n"); 507 p(TCP_STAT_SC_DROPPED, "\t%" PRIu64 " SYN%s dropped (no route or no space)\n"); 508 p(TCP_STAT_BADSIG, "\t%" PRIu64 " packet%s with bad signature\n"); 509 p(TCP_STAT_GOODSIG, "\t%" PRIu64 " packet%s with good signature\n"); 510 511 p(TCP_STAT_ECN_SHS, "\t%" PRIu64 " successful ECN handshake%s\n"); 512 p(TCP_STAT_ECN_CE, "\t%" PRIu64 " packet%s with ECN CE bit\n"); 513 p(TCP_STAT_ECN_ECT, "\t%" PRIu64 " packet%s ECN ECT(0) bit\n"); 514 #undef p 515 #undef ps 516 #undef p2 517 #undef p2s 518 #undef p3 519 show_vtw_stats(); 520 } 521 522 /* 523 * Dump UDP statistics structure. 524 */ 525 void 526 udp_stats(u_long off, const char *name) 527 { 528 uint64_t udpstat[UDP_NSTATS]; 529 u_quad_t delivered; 530 531 if (use_sysctl) { 532 size_t size = sizeof(udpstat); 533 534 if (sysctlbyname("net.inet.udp.stats", udpstat, &size, 535 NULL, 0) == -1) 536 return; 537 } else { 538 warnx("%s stats not available via KVM.", name); 539 return; 540 } 541 542 printf ("%s:\n", name); 543 544 #define ps(f, m) if (udpstat[f] || sflag <= 1) \ 545 printf(m, udpstat[f]) 546 #define p(f, m) if (udpstat[f] || sflag <= 1) \ 547 printf(m, udpstat[f], plural(udpstat[f])) 548 #define p3(f, m) if (udpstat[f] || sflag <= 1) \ 549 printf(m, udpstat[f], plurales(udpstat[f])) 550 551 p(UDP_STAT_IPACKETS, "\t%" PRIu64 " datagram%s received\n"); 552 ps(UDP_STAT_HDROPS, "\t%" PRIu64 " with incomplete header\n"); 553 ps(UDP_STAT_BADLEN, "\t%" PRIu64 " with bad data length field\n"); 554 ps(UDP_STAT_BADSUM, "\t%" PRIu64 " with bad checksum\n"); 555 ps(UDP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 556 p(UDP_STAT_NOPORTBCAST, 557 "\t%" PRIu64 " broadcast/multicast datagram%s dropped due to no socket\n"); 558 ps(UDP_STAT_FULLSOCK, "\t%" PRIu64 " dropped due to full socket buffers\n"); 559 delivered = udpstat[UDP_STAT_IPACKETS] - 560 udpstat[UDP_STAT_HDROPS] - 561 udpstat[UDP_STAT_BADLEN] - 562 udpstat[UDP_STAT_BADSUM] - 563 udpstat[UDP_STAT_NOPORT] - 564 udpstat[UDP_STAT_NOPORTBCAST] - 565 udpstat[UDP_STAT_FULLSOCK]; 566 if (delivered || sflag <= 1) 567 printf("\t%" PRIu64 " delivered\n", delivered); 568 p3(UDP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 569 p(UDP_STAT_OPACKETS, "\t%" PRIu64 " datagram%s output\n"); 570 571 #undef ps 572 #undef p 573 #undef p3 574 } 575 576 /* 577 * Dump IP statistics structure. 578 */ 579 void 580 ip_stats(u_long off, const char *name) 581 { 582 uint64_t ipstat[IP_NSTATS]; 583 584 if (use_sysctl) { 585 size_t size = sizeof(ipstat); 586 587 if (sysctlbyname("net.inet.ip.stats", ipstat, &size, 588 NULL, 0) == -1) 589 return; 590 } else { 591 warnx("%s stats not available via KVM.", name); 592 return; 593 } 594 595 printf("%s:\n", name); 596 597 #define ps(f, m) if (ipstat[f] || sflag <= 1) \ 598 printf(m, ipstat[f]) 599 #define p(f, m) if (ipstat[f] || sflag <= 1) \ 600 printf(m, ipstat[f], plural(ipstat[f])) 601 602 p(IP_STAT_TOTAL, "\t%" PRIu64 " total packet%s received\n"); 603 p(IP_STAT_BADSUM, "\t%" PRIu64 " bad header checksum%s\n"); 604 ps(IP_STAT_TOOSMALL, "\t%" PRIu64 " with size smaller than minimum\n"); 605 ps(IP_STAT_TOOSHORT, "\t%" PRIu64 " with data size < data length\n"); 606 ps(IP_STAT_TOOLONG, "\t%" PRIu64 " with length > max ip packet size\n"); 607 ps(IP_STAT_BADHLEN, "\t%" PRIu64 " with header length < data size\n"); 608 ps(IP_STAT_BADLEN, "\t%" PRIu64 " with data length < header length\n"); 609 ps(IP_STAT_BADOPTIONS, "\t%" PRIu64 " with bad options\n"); 610 ps(IP_STAT_BADVERS, "\t%" PRIu64 " with incorrect version number\n"); 611 p(IP_STAT_FRAGMENTS, "\t%" PRIu64 " fragment%s received\n"); 612 p(IP_STAT_FRAGDROPPED, "\t%" PRIu64 " fragment%s dropped (dup or out of space)\n"); 613 p(IP_STAT_RCVMEMDROP, "\t%" PRIu64 " fragment%s dropped (out of ipqent)\n"); 614 p(IP_STAT_BADFRAGS, "\t%" PRIu64 " malformed fragment%s dropped\n"); 615 p(IP_STAT_FRAGTIMEOUT, "\t%" PRIu64 " fragment%s dropped after timeout\n"); 616 p(IP_STAT_REASSEMBLED, "\t%" PRIu64 " packet%s reassembled ok\n"); 617 p(IP_STAT_DELIVERED, "\t%" PRIu64 " packet%s for this host\n"); 618 p(IP_STAT_NOPROTO, "\t%" PRIu64 " packet%s for unknown/unsupported protocol\n"); 619 p(IP_STAT_FORWARD, "\t%" PRIu64 " packet%s forwarded"); 620 p(IP_STAT_FASTFORWARD, " (%" PRIu64 " packet%s fast forwarded)"); 621 if (ipstat[IP_STAT_FORWARD] || sflag <= 1) 622 putchar('\n'); 623 p(IP_STAT_CANTFORWARD, "\t%" PRIu64 " packet%s not forwardable\n"); 624 p(IP_STAT_REDIRECTSENT, "\t%" PRIu64 " redirect%s sent\n"); 625 p(IP_STAT_NOGIF, "\t%" PRIu64 " packet%s no matching gif found\n"); 626 p(IP_STAT_LOCALOUT, "\t%" PRIu64 " packet%s sent from this host\n"); 627 p(IP_STAT_RAWOUT, "\t%" PRIu64 " packet%s sent with fabricated ip header\n"); 628 p(IP_STAT_ODROPPED, "\t%" PRIu64 " output packet%s dropped due to no bufs, etc.\n"); 629 p(IP_STAT_NOROUTE, "\t%" PRIu64 " output packet%s discarded due to no route\n"); 630 p(IP_STAT_FRAGMENTED, "\t%" PRIu64 " output datagram%s fragmented\n"); 631 p(IP_STAT_OFRAGMENTS, "\t%" PRIu64 " fragment%s created\n"); 632 p(IP_STAT_CANTFRAG, "\t%" PRIu64 " datagram%s that can't be fragmented\n"); 633 p(IP_STAT_BADADDR, "\t%" PRIu64 " datagram%s with bad address in header\n"); 634 #undef ps 635 #undef p 636 } 637 638 /* 639 * Dump ICMP statistics. 640 */ 641 void 642 icmp_stats(u_long off, const char *name) 643 { 644 uint64_t icmpstat[ICMP_NSTATS]; 645 int i, first; 646 647 if (use_sysctl) { 648 size_t size = sizeof(icmpstat); 649 650 if (sysctlbyname("net.inet.icmp.stats", icmpstat, &size, 651 NULL, 0) == -1) 652 return; 653 } else { 654 warnx("%s stats not available via KVM.", name); 655 return; 656 } 657 658 printf("%s:\n", name); 659 660 #define p(f, m) if (icmpstat[f] || sflag <= 1) \ 661 printf(m, icmpstat[f], plural(icmpstat[f])) 662 663 p(ICMP_STAT_ERROR, "\t%" PRIu64 " call%s to icmp_error\n"); 664 p(ICMP_STAT_OLDICMP, 665 "\t%" PRIu64 " error%s not generated because old message was icmp\n"); 666 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 667 if (icmpstat[ICMP_STAT_OUTHIST + i] != 0) { 668 if (first) { 669 printf("\tOutput histogram:\n"); 670 first = 0; 671 } 672 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 673 icmpstat[ICMP_STAT_OUTHIST + i]); 674 } 675 p(ICMP_STAT_BADCODE, "\t%" PRIu64 " message%s with bad code fields\n"); 676 p(ICMP_STAT_TOOSHORT, "\t%" PRIu64 " message%s < minimum length\n"); 677 p(ICMP_STAT_CHECKSUM, "\t%" PRIu64 " bad checksum%s\n"); 678 p(ICMP_STAT_BADLEN, "\t%" PRIu64 " message%s with bad length\n"); 679 p(ICMP_STAT_BMCASTECHO, "\t%" PRIu64 " multicast echo request%s ignored\n"); 680 p(ICMP_STAT_BMCASTTSTAMP, "\t%" PRIu64 " multicast timestamp request%s ignored\n"); 681 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 682 if (icmpstat[ICMP_STAT_INHIST + i] != 0) { 683 if (first) { 684 printf("\tInput histogram:\n"); 685 first = 0; 686 } 687 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 688 icmpstat[ICMP_STAT_INHIST + i]); 689 } 690 p(ICMP_STAT_REFLECT, "\t%" PRIu64 " message response%s generated\n"); 691 p(ICMP_STAT_PMTUCHG, "\t%" PRIu64 " path MTU change%s\n"); 692 #undef p 693 } 694 695 /* 696 * Dump IGMP statistics structure. 697 */ 698 void 699 igmp_stats(u_long off, const char *name) 700 { 701 uint64_t igmpstat[IGMP_NSTATS]; 702 703 if (use_sysctl) { 704 size_t size = sizeof(igmpstat); 705 706 if (sysctlbyname("net.inet.igmp.stats", igmpstat, &size, 707 NULL, 0) == -1) 708 return; 709 } else { 710 warnx("%s stats not available via KVM.", name); 711 return; 712 } 713 714 printf("%s:\n", name); 715 716 #define p(f, m) if (igmpstat[f] || sflag <= 1) \ 717 printf(m, igmpstat[f], plural(igmpstat[f])) 718 #define py(f, m) if (igmpstat[f] || sflag <= 1) \ 719 printf(m, igmpstat[f], igmpstat[f] != 1 ? "ies" : "y") 720 p(IGMP_STAT_RCV_TOTAL, "\t%" PRIu64 " message%s received\n"); 721 p(IGMP_STAT_RCV_TOOSHORT, "\t%" PRIu64 " message%s received with too few bytes\n"); 722 p(IGMP_STAT_RCV_BADSUM, "\t%" PRIu64 " message%s received with bad checksum\n"); 723 py(IGMP_STAT_RCV_QUERIES, "\t%" PRIu64 " membership quer%s received\n"); 724 py(IGMP_STAT_RCV_BADQUERIES, "\t%" PRIu64 " membership quer%s received with invalid field(s)\n"); 725 p(IGMP_STAT_RCV_REPORTS, "\t%" PRIu64 " membership report%s received\n"); 726 p(IGMP_STAT_RCV_BADREPORTS, "\t%" PRIu64 " membership report%s received with invalid field(s)\n"); 727 p(IGMP_STAT_RCV_OURREPORTS, "\t%" PRIu64 " membership report%s received for groups to which we belong\n"); 728 p(IGMP_STAT_SND_REPORTS, "\t%" PRIu64 " membership report%s sent\n"); 729 #undef p 730 #undef py 731 } 732 733 /* 734 * Dump CARP statistics structure. 735 */ 736 void 737 carp_stats(u_long off, const char *name) 738 { 739 uint64_t carpstat[CARP_NSTATS]; 740 741 if (use_sysctl) { 742 size_t size = sizeof(carpstat); 743 744 if (sysctlbyname("net.inet.carp.stats", carpstat, &size, 745 NULL, 0) == -1) 746 return; 747 } else { 748 warnx("%s stats not available via KVM.", name); 749 return; 750 } 751 752 printf("%s:\n", name); 753 754 #define p(f, m) if (carpstat[f] || sflag <= 1) \ 755 printf(m, carpstat[f], plural(carpstat[f])) 756 #define p2(f, m) if (carpstat[f] || sflag <= 1) \ 757 printf(m, carpstat[f]) 758 759 p(CARP_STAT_IPACKETS, "\t%" PRIu64 " packet%s received (IPv4)\n"); 760 p(CARP_STAT_IPACKETS6, "\t%" PRIu64 " packet%s received (IPv6)\n"); 761 p(CARP_STAT_BADIF, 762 "\t\t%" PRIu64 " packet%s discarded for bad interface\n"); 763 p(CARP_STAT_BADTTL, 764 "\t\t%" PRIu64 " packet%s discarded for wrong TTL\n"); 765 p(CARP_STAT_HDROPS, "\t\t%" PRIu64 " packet%s shorter than header\n"); 766 p(CARP_STAT_BADSUM, "\t\t%" PRIu64 767 " packet%s discarded for bad checksum\n"); 768 p(CARP_STAT_BADVER, 769 "\t\t%" PRIu64 " packet%s discarded with a bad version\n"); 770 p2(CARP_STAT_BADLEN, 771 "\t\t%" PRIu64 " discarded because packet was too short\n"); 772 p(CARP_STAT_BADAUTH, 773 "\t\t%" PRIu64 " packet%s discarded for bad authentication\n"); 774 p(CARP_STAT_BADVHID, "\t\t%" PRIu64 " packet%s discarded for bad vhid\n"); 775 p(CARP_STAT_BADADDRS, "\t\t%" PRIu64 776 " packet%s discarded because of a bad address list\n"); 777 p(CARP_STAT_OPACKETS, "\t%" PRIu64 " packet%s sent (IPv4)\n"); 778 p(CARP_STAT_OPACKETS6, "\t%" PRIu64 " packet%s sent (IPv6)\n"); 779 p2(CARP_STAT_ONOMEM, 780 "\t\t%" PRIu64 " send failed due to mbuf memory error\n"); 781 #undef p 782 #undef p2 783 } 784 785 /* 786 * Dump PIM statistics structure. 787 */ 788 void 789 pim_stats(u_long off, const char *name) 790 { 791 struct pimstat pimstat; 792 793 if (off == 0) 794 return; 795 if (kread(off, (char *)&pimstat, sizeof (pimstat)) != 0) { 796 /* XXX: PIM is probably not enabled in the kernel */ 797 return; 798 } 799 800 printf("%s:\n", name); 801 802 #define p(f, m) if (pimstat.f || sflag <= 1) \ 803 printf(m, pimstat.f, plural(pimstat.f)) 804 805 p(pims_rcv_total_msgs, "\t%" PRIu64 " message%s received\n"); 806 p(pims_rcv_total_bytes, "\t%" PRIu64 " byte%s received\n"); 807 p(pims_rcv_tooshort, "\t%" PRIu64 " message%s received with too few bytes\n"); 808 p(pims_rcv_badsum, "\t%" PRIu64 " message%s received with bad checksum\n"); 809 p(pims_rcv_badversion, "\t%" PRIu64 " message%s received with bad version\n"); 810 p(pims_rcv_registers_msgs, "\t%" PRIu64 " data register message%s received\n"); 811 p(pims_rcv_registers_bytes, "\t%" PRIu64 " data register byte%s received\n"); 812 p(pims_rcv_registers_wrongiif, "\t%" PRIu64 " data register message%s received on wrong iif\n"); 813 p(pims_rcv_badregisters, "\t%" PRIu64 " bad register%s received\n"); 814 p(pims_snd_registers_msgs, "\t%" PRIu64 " data register message%s sent\n"); 815 p(pims_snd_registers_bytes, "\t%" PRIu64 " data register byte%s sent\n"); 816 #undef p 817 } 818 819 /* 820 * Dump the ARP statistics structure. 821 */ 822 void 823 arp_stats(u_long off, const char *name) 824 { 825 uint64_t arpstat[ARP_NSTATS]; 826 827 if (use_sysctl) { 828 size_t size = sizeof(arpstat); 829 830 if (sysctlbyname("net.inet.arp.stats", arpstat, &size, 831 NULL, 0) == -1) 832 return; 833 } else { 834 warnx("%s stats not available via KVM.", name); 835 return; 836 } 837 838 printf("%s:\n", name); 839 840 #define ps(f, m) if (arpstat[f] || sflag <= 1) \ 841 printf(m, arpstat[f]) 842 #define p(f, m) if (arpstat[f] || sflag <= 1) \ 843 printf(m, arpstat[f], plural(arpstat[f])) 844 845 p(ARP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 846 p(ARP_STAT_SNDREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 847 p(ARP_STAT_SENDREQUEST, "\t\t%" PRIu64 " request packet%s\n"); 848 849 p(ARP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 850 p(ARP_STAT_RCVREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 851 p(ARP_STAT_RCVREQUEST, "\t\t%" PRIu64 " valid request packet%s\n"); 852 p(ARP_STAT_RCVMCAST, "\t\t%" PRIu64 " broadcast/multicast packet%s\n"); 853 p(ARP_STAT_RCVBADPROTO, "\t\t%" PRIu64 " packet%s with unknown protocol type\n"); 854 p(ARP_STAT_RCVBADLEN, "\t\t%" PRIu64 " packet%s with bad (short) length\n"); 855 p(ARP_STAT_RCVZEROTPA, "\t\t%" PRIu64 " packet%s with null target IP address\n"); 856 p(ARP_STAT_RCVZEROSPA, "\t\t%" PRIu64 " packet%s with null source IP address\n"); 857 ps(ARP_STAT_RCVNOINT, "\t\t%" PRIu64 " could not be mapped to an interface\n"); 858 p(ARP_STAT_RCVLOCALSHA, "\t\t%" PRIu64 " packet%s sourced from a local hardware " 859 "address\n"); 860 p(ARP_STAT_RCVBCASTSHA, "\t\t%" PRIu64 " packet%s with a broadcast " 861 "source hardware address\n"); 862 p(ARP_STAT_RCVLOCALSPA, "\t\t%" PRIu64 " duplicate%s for a local IP address\n"); 863 p(ARP_STAT_RCVOVERPERM, "\t\t%" PRIu64 " attempt%s to overwrite a static entry\n"); 864 p(ARP_STAT_RCVOVERINT, "\t\t%" PRIu64 " packet%s received on wrong interface\n"); 865 p(ARP_STAT_RCVOVER, "\t\t%" PRIu64 " entry%s overwritten\n"); 866 p(ARP_STAT_RCVLENCHG, "\t\t%" PRIu64 " change%s in hardware address length\n"); 867 868 p(ARP_STAT_DFRTOTAL, "\t%" PRIu64 " packet%s deferred pending ARP resolution\n"); 869 ps(ARP_STAT_DFRSENT, "\t\t%" PRIu64 " sent\n"); 870 ps(ARP_STAT_DFRDROPPED, "\t\t%" PRIu64 " dropped\n"); 871 872 p(ARP_STAT_ALLOCFAIL, "\t%" PRIu64 " failure%s to allocate llinfo\n"); 873 874 #undef ps 875 #undef p 876 } 877 878 /* 879 * Pretty print an Internet address (net address + port). 880 * Take numeric_addr and numeric_port into consideration. 881 */ 882 void 883 inetprint(struct in_addr *in, uint16_t port, const char *proto, 884 int port_numeric) 885 { 886 struct servent *sp = 0; 887 char line[80], *cp; 888 size_t space; 889 890 (void)snprintf(line, sizeof line, "%.*s.", 891 (Aflag && !numeric_addr) ? 12 : 16, inetname(in)); 892 cp = strchr(line, '\0'); 893 if (!port_numeric && port) 894 sp = getservbyport((int)port, proto); 895 space = sizeof line - (cp-line); 896 if (sp || port == 0) 897 (void)snprintf(cp, space, "%s", sp ? sp->s_name : "*"); 898 else 899 (void)snprintf(cp, space, "%u", ntohs(port)); 900 (void)printf(" %-*.*s", width, width, line); 901 } 902 903 /* 904 * Construct an Internet address representation. 905 * If numeric_addr has been supplied, give 906 * numeric value, otherwise try for symbolic name. 907 */ 908 char * 909 inetname(struct in_addr *inp) 910 { 911 char *cp; 912 static char line[50]; 913 struct hostent *hp; 914 struct netent *np; 915 static char domain[MAXHOSTNAMELEN + 1]; 916 static int first = 1; 917 918 if (first && !numeric_addr) { 919 first = 0; 920 if (gethostname(domain, sizeof domain) == 0) { 921 domain[sizeof(domain) - 1] = '\0'; 922 if ((cp = strchr(domain, '.'))) 923 (void) strlcpy(domain, cp + 1, sizeof(domain)); 924 else 925 domain[0] = 0; 926 } else 927 domain[0] = 0; 928 } 929 cp = 0; 930 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 931 int net = inet_netof(*inp); 932 int lna = inet_lnaof(*inp); 933 934 if (lna == INADDR_ANY) { 935 np = getnetbyaddr(net, AF_INET); 936 if (np) 937 cp = np->n_name; 938 } 939 if (cp == 0) { 940 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 941 if (hp) { 942 if ((cp = strchr(hp->h_name, '.')) && 943 !strcmp(cp + 1, domain)) 944 *cp = 0; 945 cp = hp->h_name; 946 } 947 } 948 } 949 if (inp->s_addr == INADDR_ANY) 950 strlcpy(line, "*", sizeof line); 951 else if (cp) 952 strlcpy(line, cp, sizeof line); 953 else { 954 inp->s_addr = ntohl(inp->s_addr); 955 #define C(x) ((x) & 0xff) 956 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 957 C(inp->s_addr >> 24), C(inp->s_addr >> 16), 958 C(inp->s_addr >> 8), C(inp->s_addr)); 959 #undef C 960 } 961 return (line); 962 } 963 964 /* 965 * Dump the contents of a TCP PCB. 966 */ 967 void 968 tcp_dump(u_long off, const char *name, u_long pcbaddr) 969 { 970 callout_impl_t *ci; 971 struct tcpcb tcpcb; 972 int i, hardticks; 973 struct kinfo_pcb *pcblist; 974 size_t j, len; 975 976 if (use_sysctl) 977 pcblist = getpcblist_sysctl(name, &len); 978 else 979 pcblist = getpcblist_kmem(off, name, &len); 980 981 for (j = 0; j < len; j++) 982 if (pcblist[j].ki_ppcbaddr == pcbaddr) 983 break; 984 free(pcblist); 985 986 if (j == len) 987 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 988 989 kread(pcbaddr, (char *)&tcpcb, sizeof(tcpcb)); 990 hardticks = get_hardticks(); 991 992 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 993 994 printf("Timers:\n"); 995 for (i = 0; i < TCPT_NTIMERS; i++) { 996 char buf[128]; 997 ci = (callout_impl_t *)&tcpcb.t_timer[i]; 998 snprintb(buf, sizeof(buf), CALLOUT_FMT, ci->c_flags); 999 printf("\t%s\t%s", tcptimers[i], buf); 1000 if (ci->c_flags & CALLOUT_PENDING) 1001 printf("\t%d\n", ci->c_time - hardticks); 1002 else 1003 printf("\n"); 1004 } 1005 printf("\n\n"); 1006 1007 if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) 1008 printf("State: %d", tcpcb.t_state); 1009 else 1010 printf("State: %s", tcpstates[tcpcb.t_state]); 1011 printf(", flags 0x%x, inpcb 0x%lx, in6pcb 0x%lx\n\n", tcpcb.t_flags, 1012 (u_long)tcpcb.t_inpcb, (u_long)tcpcb.t_in6pcb); 1013 1014 printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcpcb.t_rxtshift, 1015 tcpcb.t_rxtcur, tcpcb.t_dupacks); 1016 printf("peermss %u, ourmss %u, segsz %u, segqlen %u\n\n", 1017 tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz, tcpcb.t_segqlen); 1018 1019 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1020 tcpcb.snd_una, tcpcb.snd_nxt, tcpcb.snd_up); 1021 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %lu\n\n", 1022 tcpcb.snd_wl1, tcpcb.snd_wl2, tcpcb.iss, tcpcb.snd_wnd); 1023 1024 printf("rcv_wnd %lu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1025 tcpcb.rcv_wnd, tcpcb.rcv_nxt, tcpcb.rcv_up, tcpcb.irs); 1026 1027 printf("rcv_adv %u, snd_max %u, snd_cwnd %lu, snd_ssthresh %lu\n", 1028 tcpcb.rcv_adv, tcpcb.snd_max, tcpcb.snd_cwnd, tcpcb.snd_ssthresh); 1029 1030 printf("rcvtime %u, rtttime %u, rtseq %u, srtt %d, rttvar %d, " 1031 "rttmin %d, max_sndwnd %lu\n\n", tcpcb.t_rcvtime, tcpcb.t_rtttime, 1032 tcpcb.t_rtseq, tcpcb.t_srtt, tcpcb.t_rttvar, tcpcb.t_rttmin, 1033 tcpcb.max_sndwnd); 1034 1035 printf("oobflags %d, iobc %d, softerror %d\n\n", tcpcb.t_oobflags, 1036 tcpcb.t_iobc, tcpcb.t_softerror); 1037 1038 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1039 tcpcb.snd_scale, tcpcb.rcv_scale, tcpcb.request_r_scale, 1040 tcpcb.requested_s_scale); 1041 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1042 tcpcb.ts_recent, tcpcb.ts_recent_age, tcpcb.last_ack_sent); 1043 } 1044
Indexes created Tue Sep 23 07:09:52 GMT 2025