inet.c revision 1.104.4.1
1 /* $NetBSD: inet.c,v 1.104.4.1 2015/02/11 08:29:56 snj 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 1.104.4.1 2015/02/11 08:29:56 snj 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 "netstat.h" 91 #include "vtw.h" 92 #include "prog_ops.h" 93 94 char *inetname(struct in_addr *); 95 void inetprint(struct in_addr *, u_int16_t, const char *, int); 96 97 void print_vtw_v4(const vtw_t *); 98 99 /* 100 * Print a summary of connections related to an Internet 101 * protocol. For TCP, also give state of connection. 102 * Listening processes (aflag) are suppressed unless the 103 * -a (all) flag is specified. 104 */ 105 static int width; 106 static int compact; 107 108 /* VTW-related variables. */ 109 static struct timeval now; 110 111 static void 112 protoprhdr(void) 113 { 114 printf("Active Internet connections"); 115 if (aflag) 116 printf(" (including servers)"); 117 putchar('\n'); 118 if (Aflag) 119 printf("%-8.8s ", "PCB"); 120 printf( 121 Vflag ? "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %-13.13s Expires\n" 122 : "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %s\n", 123 "Proto", "Recv-Q", "Send-Q", compact ? "" : " ", 124 width, width, "Local Address", 125 width, width, "Foreign Address", 126 "State"); 127 } 128 129 static void 130 protopr0(intptr_t ppcb, u_long rcv_sb_cc, u_long snd_sb_cc, 131 struct in_addr *laddr, u_int16_t lport, 132 struct in_addr *faddr, u_int16_t fport, 133 short t_state, const char *name, int inp_flags, 134 const struct timeval *expires) 135 { 136 static const char *shorttcpstates[] = { 137 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 138 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 139 "LASTAK", "FWAIT2", "TMWAIT", 140 }; 141 int istcp; 142 143 istcp = strcmp(name, "tcp") == 0; 144 145 if (Aflag) { 146 printf("%8" PRIxPTR " ", ppcb); 147 } 148 printf("%-5.5s %6ld %6ld%s", name, rcv_sb_cc, snd_sb_cc, 149 compact ? "" : " "); 150 if (numeric_port) { 151 inetprint(laddr, lport, name, 1); 152 inetprint(faddr, fport, name, 1); 153 } else if (inp_flags & INP_ANONPORT) { 154 inetprint(laddr, lport, name, 1); 155 inetprint(faddr, fport, name, 0); 156 } else { 157 inetprint(laddr, lport, name, 0); 158 inetprint(faddr, fport, name, 0); 159 } 160 if (istcp) { 161 if (t_state < 0 || t_state >= TCP_NSTATES) 162 printf(" %d", t_state); 163 else 164 printf(" %s", compact ? shorttcpstates[t_state] : 165 tcpstates[t_state]); 166 } 167 if (Vflag && expires != NULL) { 168 if (expires->tv_sec == 0 && expires->tv_usec == -1) 169 printf(" reclaimed"); 170 else { 171 struct timeval delta; 172 173 timersub(expires, &now, &delta); 174 printf(" %.3fms", 175 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 176 } 177 } 178 putchar('\n'); 179 } 180 181 static void 182 dbg_printf(const char *fmt, ...) 183 { 184 return; 185 } 186 187 void 188 print_vtw_v4(const vtw_t *vtw) 189 { 190 const vtw_v4_t *v4 = (const vtw_v4_t *)vtw; 191 struct timeval delta; 192 struct in_addr la, fa; 193 char buf[2][32]; 194 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 195 196 la.s_addr = v4->laddr; 197 fa.s_addr = v4->faddr; 198 199 snprintf(&buf[0][0], 32, "%s", inet_ntoa(la)); 200 snprintf(&buf[1][0], 32, "%s", inet_ntoa(fa)); 201 202 timersub(&vtw->expire, &now, &delta); 203 204 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 205 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n" 206 ,buf[0], ntohs(v4->lport) 207 ,buf[1], ntohs(v4->fport)); 208 if (!(Vflag && vflag)) 209 return; 210 } else if (vtw->expire.tv_sec == 0) 211 return; 212 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 213 dbg_printf("%15.15s:%d %15.15s:%d expired\n" 214 ,buf[0], ntohs(v4->lport) 215 ,buf[1], ntohs(v4->fport)); 216 return; 217 } else { 218 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n" 219 ,buf[0], ntohs(v4->lport) 220 ,buf[1], ntohs(v4->fport) 221 ,delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 222 } 223 protopr0(0, 0, 0, 224 &la, v4->lport, 225 &fa, v4->fport, 226 TCPS_TIME_WAIT, "tcp", 0, &vtw->expire); 227 } 228 229 struct kinfo_pcb * 230 getpcblist_sysctl(const char *name, size_t *len) { 231 int mib[8]; 232 size_t namelen = 0, size = 0; 233 char *mibname = NULL; 234 struct kinfo_pcb *pcblist; 235 236 memset(mib, 0, sizeof(mib)); 237 238 if (asprintf(&mibname, "net.inet%s.%s.pcblist", name + 3, name) == -1) 239 err(1, "asprintf"); 240 241 /* get dynamic pcblist node */ 242 if (sysctlnametomib(mibname, mib, &namelen) == -1) 243 err(1, "sysctlnametomib: %s", mibname); 244 245 free(mibname); 246 247 if (prog_sysctl(mib, __arraycount(mib), NULL, &size, NULL, 0) == -1) 248 err(1, "sysctl (query)"); 249 250 if ((pcblist = malloc(size)) == NULL) 251 err(1, "malloc"); 252 memset(pcblist, 0, size); 253 254 mib[6] = sizeof(*pcblist); 255 mib[7] = size / sizeof(*pcblist); 256 257 if (prog_sysctl(mib, __arraycount(mib), pcblist, &size, NULL, 0) == -1) 258 err(1, "sysctl (copy)"); 259 260 *len = size / sizeof(*pcblist); 261 return pcblist; 262 263 } 264 265 static struct kinfo_pcb * 266 getpcblist_kmem(u_long off, const char *name, size_t *len) { 267 struct inpcbtable table; 268 struct inpcb_hdr *next, *prev; 269 struct inpcb inpcb; 270 struct tcpcb tcpcb; 271 struct socket sockb; 272 int istcp = strcmp(name, "tcp") == 0; 273 struct kinfo_pcb *pcblist; 274 size_t size = 100, i; 275 struct sockaddr_in sin; 276 struct inpcbqueue *head; 277 278 if (off == 0) { 279 *len = 0; 280 return NULL; 281 } 282 283 kread(off, (char *)&table, sizeof table); 284 head = &table.inpt_queue; 285 next = TAILQ_FIRST(head); 286 prev = TAILQ_END(head); 287 288 if ((pcblist = malloc(size * sizeof(*pcblist))) == NULL) 289 err(1, "malloc"); 290 291 i = 0; 292 while (next != TAILQ_END(head)) { 293 kread((u_long)next, (char *)&inpcb, sizeof inpcb); 294 prev = next; 295 next = TAILQ_NEXT(&inpcb, inp_queue); 296 297 if (inpcb.inp_af != AF_INET) 298 continue; 299 300 kread((u_long)inpcb.inp_socket, (char *)&sockb, sizeof(sockb)); 301 if (istcp) { 302 kread((u_long)inpcb.inp_ppcb, 303 (char *)&tcpcb, sizeof (tcpcb)); 304 } 305 pcblist[i].ki_ppcbaddr = 306 istcp ? (uintptr_t) inpcb.inp_ppcb : (uintptr_t) prev; 307 pcblist[i].ki_rcvq = (uint64_t)sockb.so_rcv.sb_cc; 308 pcblist[i].ki_sndq = (uint64_t)sockb.so_snd.sb_cc; 309 310 sin.sin_addr = inpcb.inp_laddr; 311 sin.sin_port = inpcb.inp_lport; 312 memcpy(&pcblist[i].ki_s, &sin, sizeof(sin)); 313 sin.sin_addr = inpcb.inp_faddr; 314 sin.sin_port = inpcb.inp_fport; 315 memcpy(&pcblist[i].ki_d, &sin, sizeof(sin)); 316 pcblist[i].ki_tstate = tcpcb.t_state; 317 pcblist[i].ki_pflags = inpcb.inp_flags; 318 if (i++ == size) { 319 size += 100; 320 struct kinfo_pcb *n = realloc(pcblist, 321 size * sizeof(*pcblist)); 322 if (n == NULL) 323 err(1, "realloc"); 324 pcblist = n; 325 } 326 } 327 *len = i; 328 return pcblist; 329 } 330 331 void 332 protopr(u_long off, const char *name) 333 { 334 static int first = 1; 335 struct kinfo_pcb *pcblist; 336 size_t i, len; 337 338 compact = 0; 339 if (Aflag) { 340 if (!numeric_addr) 341 width = 18; 342 else { 343 width = 21; 344 compact = 1; 345 } 346 } else 347 width = 22; 348 349 if (use_sysctl) 350 pcblist = getpcblist_sysctl(name, &len); 351 else 352 pcblist = getpcblist_kmem(off, name, &len); 353 354 for (i = 0; i < len; i++) { 355 struct sockaddr_in src, dst; 356 357 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 358 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 359 360 if (!aflag && 361 inet_lnaof(dst.sin_addr) == INADDR_ANY) 362 continue; 363 364 if (first) { 365 protoprhdr(); 366 first = 0; 367 } 368 protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 369 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 370 &src.sin_addr, src.sin_port, 371 &dst.sin_addr, dst.sin_port, 372 pcblist[i].ki_tstate, name, 373 pcblist[i].ki_pflags, NULL); 374 } 375 376 free(pcblist); 377 378 if (strcmp(name, "tcp") == 0) { 379 struct timeval t; 380 timebase(&t); 381 gettimeofday(&now, NULL); 382 timersub(&now, &t, &now); 383 show_vtw_v4(print_vtw_v4); 384 } 385 } 386 387 /* 388 * Dump TCP statistics structure. 389 */ 390 void 391 tcp_stats(u_long off, const char *name) 392 { 393 uint64_t tcpstat[TCP_NSTATS]; 394 395 if (use_sysctl) { 396 size_t size = sizeof(tcpstat); 397 398 if (sysctlbyname("net.inet.tcp.stats", tcpstat, &size, 399 NULL, 0) == -1) 400 return; 401 } else { 402 warnx("%s stats not available via KVM.", name); 403 return; 404 } 405 406 printf ("%s:\n", name); 407 408 #define ps(f, m) if (tcpstat[f] || sflag <= 1) \ 409 printf(m, tcpstat[f]) 410 #define p(f, m) if (tcpstat[f] || sflag <= 1) \ 411 printf(m, tcpstat[f], plural(tcpstat[f])) 412 #define p2(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 413 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 414 tcpstat[f2], plural(tcpstat[f2])) 415 #define p2s(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 416 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 417 tcpstat[f2]) 418 #define p3(f, m) if (tcpstat[f] || sflag <= 1) \ 419 printf(m, tcpstat[f], plurales(tcpstat[f])) 420 421 p(TCP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 422 p2(TCP_STAT_SNDPACK,TCP_STAT_SNDBYTE, 423 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s)\n"); 424 p2(TCP_STAT_SNDREXMITPACK, TCP_STAT_SNDREXMITBYTE, 425 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s) retransmitted\n"); 426 p2s(TCP_STAT_SNDACKS, TCP_STAT_DELACK, 427 "\t\t%" PRIu64 " ack-only packet%s (%" PRIu64 " delayed)\n"); 428 p(TCP_STAT_SNDURG, "\t\t%" PRIu64 " URG only packet%s\n"); 429 p(TCP_STAT_SNDPROBE, "\t\t%" PRIu64 " window probe packet%s\n"); 430 p(TCP_STAT_SNDWINUP, "\t\t%" PRIu64 " window update packet%s\n"); 431 p(TCP_STAT_SNDCTRL, "\t\t%" PRIu64 " control packet%s\n"); 432 p(TCP_STAT_SELFQUENCH, 433 "\t\t%" PRIu64 " send attempt%s resulted in self-quench\n"); 434 p(TCP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 435 p2(TCP_STAT_RCVACKPACK, TCP_STAT_RCVACKBYTE, 436 "\t\t%" PRIu64 " ack%s (for %" PRIu64 " byte%s)\n"); 437 p(TCP_STAT_RCVDUPACK, "\t\t%" PRIu64 " duplicate ack%s\n"); 438 p(TCP_STAT_RCVACKTOOMUCH, "\t\t%" PRIu64 " ack%s for unsent data\n"); 439 p2(TCP_STAT_RCVPACK, TCP_STAT_RCVBYTE, 440 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) received in-sequence\n"); 441 p2(TCP_STAT_RCVDUPPACK, TCP_STAT_RCVDUPBYTE, 442 "\t\t%" PRIu64 " completely duplicate packet%s (%" PRIu64 " byte%s)\n"); 443 p(TCP_STAT_PAWSDROP, "\t\t%" PRIu64 " old duplicate packet%s\n"); 444 p2(TCP_STAT_RCVPARTDUPPACK, TCP_STAT_RCVPARTDUPBYTE, 445 "\t\t%" PRIu64 " packet%s with some dup. data (%" PRIu64 " byte%s duped)\n"); 446 p2(TCP_STAT_RCVOOPACK, TCP_STAT_RCVOOBYTE, 447 "\t\t%" PRIu64 " out-of-order packet%s (%" PRIu64 " byte%s)\n"); 448 p2(TCP_STAT_RCVPACKAFTERWIN, TCP_STAT_RCVBYTEAFTERWIN, 449 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) of data after window\n"); 450 p(TCP_STAT_RCVWINPROBE, "\t\t%" PRIu64 " window probe%s\n"); 451 p(TCP_STAT_RCVWINUPD, "\t\t%" PRIu64 " window update packet%s\n"); 452 p(TCP_STAT_RCVAFTERCLOSE, "\t\t%" PRIu64 " packet%s received after close\n"); 453 p(TCP_STAT_RCVBADSUM, "\t\t%" PRIu64 " discarded for bad checksum%s\n"); 454 p(TCP_STAT_RCVBADOFF, "\t\t%" PRIu64 " discarded for bad header offset field%s\n"); 455 ps(TCP_STAT_RCVSHORT, "\t\t%" PRIu64 " discarded because packet too short\n"); 456 p(TCP_STAT_CONNATTEMPT, "\t%" PRIu64 " connection request%s\n"); 457 p(TCP_STAT_ACCEPTS, "\t%" PRIu64 " connection accept%s\n"); 458 p(TCP_STAT_CONNECTS, 459 "\t%" PRIu64 " connection%s established (including accepts)\n"); 460 p2(TCP_STAT_CLOSED, TCP_STAT_DROPS, 461 "\t%" PRIu64 " connection%s closed (including %" PRIu64 " drop%s)\n"); 462 p(TCP_STAT_CONNDROPS, "\t%" PRIu64 " embryonic connection%s dropped\n"); 463 p(TCP_STAT_DELAYED_FREE, "\t%" PRIu64 " delayed free%s of tcpcb\n"); 464 p2(TCP_STAT_RTTUPDATED, TCP_STAT_SEGSTIMED, 465 "\t%" PRIu64 " segment%s updated rtt (of %" PRIu64 " attempt%s)\n"); 466 p(TCP_STAT_REXMTTIMEO, "\t%" PRIu64 " retransmit timeout%s\n"); 467 p(TCP_STAT_TIMEOUTDROP, 468 "\t\t%" PRIu64 " connection%s dropped by rexmit timeout\n"); 469 p2(TCP_STAT_PERSISTTIMEO, TCP_STAT_PERSISTDROPS, 470 "\t%" PRIu64 " persist timeout%s (resulting in %" PRIu64 " dropped " 471 "connection%s)\n"); 472 p(TCP_STAT_KEEPTIMEO, "\t%" PRIu64 " keepalive timeout%s\n"); 473 p(TCP_STAT_KEEPPROBE, "\t\t%" PRIu64 " keepalive probe%s sent\n"); 474 p(TCP_STAT_KEEPDROPS, "\t\t%" PRIu64 " connection%s dropped by keepalive\n"); 475 p(TCP_STAT_PREDACK, "\t%" PRIu64 " correct ACK header prediction%s\n"); 476 p(TCP_STAT_PREDDAT, "\t%" PRIu64 " correct data packet header prediction%s\n"); 477 p3(TCP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 478 ps(TCP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 479 p(TCP_STAT_CONNSDRAINED, "\t%" PRIu64 " connection%s drained due to memory " 480 "shortage\n"); 481 p(TCP_STAT_PMTUBLACKHOLE, "\t%" PRIu64 " PMTUD blackhole%s detected\n"); 482 483 p(TCP_STAT_BADSYN, "\t%" PRIu64 " bad connection attempt%s\n"); 484 ps(TCP_STAT_SC_ADDED, "\t%" PRIu64 " SYN cache entries added\n"); 485 p(TCP_STAT_SC_COLLISIONS, "\t\t%" PRIu64 " hash collision%s\n"); 486 ps(TCP_STAT_SC_COMPLETED, "\t\t%" PRIu64 " completed\n"); 487 ps(TCP_STAT_SC_ABORTED, "\t\t%" PRIu64 " aborted (no space to build PCB)\n"); 488 ps(TCP_STAT_SC_TIMED_OUT, "\t\t%" PRIu64 " timed out\n"); 489 ps(TCP_STAT_SC_OVERFLOWED, "\t\t%" PRIu64 " dropped due to overflow\n"); 490 ps(TCP_STAT_SC_BUCKETOVERFLOW, "\t\t%" PRIu64 " dropped due to bucket overflow\n"); 491 ps(TCP_STAT_SC_RESET, "\t\t%" PRIu64 " dropped due to RST\n"); 492 ps(TCP_STAT_SC_UNREACH, "\t\t%" PRIu64 " dropped due to ICMP unreachable\n"); 493 ps(TCP_STAT_SC_DELAYED_FREE, "\t\t%" PRIu64 " delayed free of SYN cache " 494 "entries\n"); 495 p(TCP_STAT_SC_RETRANSMITTED, "\t%" PRIu64 " SYN,ACK%s retransmitted\n"); 496 p(TCP_STAT_SC_DUPESYN, "\t%" PRIu64 " duplicate SYN%s received for entries " 497 "already in the cache\n"); 498 p(TCP_STAT_SC_DROPPED, "\t%" PRIu64 " SYN%s dropped (no route or no space)\n"); 499 p(TCP_STAT_BADSIG, "\t%" PRIu64 " packet%s with bad signature\n"); 500 p(TCP_STAT_GOODSIG, "\t%" PRIu64 " packet%s with good signature\n"); 501 502 p(TCP_STAT_ECN_SHS, "\t%" PRIu64 " successful ECN handshake%s\n"); 503 p(TCP_STAT_ECN_CE, "\t%" PRIu64 " packet%s with ECN CE bit\n"); 504 p(TCP_STAT_ECN_ECT, "\t%" PRIu64 " packet%s ECN ECT(0) bit\n"); 505 #undef p 506 #undef ps 507 #undef p2 508 #undef p2s 509 #undef p3 510 show_vtw_stats(); 511 } 512 513 /* 514 * Dump UDP statistics structure. 515 */ 516 void 517 udp_stats(u_long off, const char *name) 518 { 519 uint64_t udpstat[UDP_NSTATS]; 520 u_quad_t delivered; 521 522 if (use_sysctl) { 523 size_t size = sizeof(udpstat); 524 525 if (sysctlbyname("net.inet.udp.stats", udpstat, &size, 526 NULL, 0) == -1) 527 return; 528 } else { 529 warnx("%s stats not available via KVM.", name); 530 return; 531 } 532 533 printf ("%s:\n", name); 534 535 #define ps(f, m) if (udpstat[f] || sflag <= 1) \ 536 printf(m, udpstat[f]) 537 #define p(f, m) if (udpstat[f] || sflag <= 1) \ 538 printf(m, udpstat[f], plural(udpstat[f])) 539 #define p3(f, m) if (udpstat[f] || sflag <= 1) \ 540 printf(m, udpstat[f], plurales(udpstat[f])) 541 542 p(UDP_STAT_IPACKETS, "\t%" PRIu64 " datagram%s received\n"); 543 ps(UDP_STAT_HDROPS, "\t%" PRIu64 " with incomplete header\n"); 544 ps(UDP_STAT_BADLEN, "\t%" PRIu64 " with bad data length field\n"); 545 ps(UDP_STAT_BADSUM, "\t%" PRIu64 " with bad checksum\n"); 546 ps(UDP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 547 p(UDP_STAT_NOPORTBCAST, 548 "\t%" PRIu64 " broadcast/multicast datagram%s dropped due to no socket\n"); 549 ps(UDP_STAT_FULLSOCK, "\t%" PRIu64 " dropped due to full socket buffers\n"); 550 delivered = udpstat[UDP_STAT_IPACKETS] - 551 udpstat[UDP_STAT_HDROPS] - 552 udpstat[UDP_STAT_BADLEN] - 553 udpstat[UDP_STAT_BADSUM] - 554 udpstat[UDP_STAT_NOPORT] - 555 udpstat[UDP_STAT_NOPORTBCAST] - 556 udpstat[UDP_STAT_FULLSOCK]; 557 if (delivered || sflag <= 1) 558 printf("\t%" PRIu64 " delivered\n", delivered); 559 p3(UDP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 560 p(UDP_STAT_OPACKETS, "\t%" PRIu64 " datagram%s output\n"); 561 562 #undef ps 563 #undef p 564 #undef p3 565 } 566 567 /* 568 * Dump IP statistics structure. 569 */ 570 void 571 ip_stats(u_long off, const char *name) 572 { 573 uint64_t ipstat[IP_NSTATS]; 574 575 if (use_sysctl) { 576 size_t size = sizeof(ipstat); 577 578 if (sysctlbyname("net.inet.ip.stats", ipstat, &size, 579 NULL, 0) == -1) 580 return; 581 } else { 582 warnx("%s stats not available via KVM.", name); 583 return; 584 } 585 586 printf("%s:\n", name); 587 588 #define ps(f, m) if (ipstat[f] || sflag <= 1) \ 589 printf(m, ipstat[f]) 590 #define p(f, m) if (ipstat[f] || sflag <= 1) \ 591 printf(m, ipstat[f], plural(ipstat[f])) 592 593 p(IP_STAT_TOTAL, "\t%" PRIu64 " total packet%s received\n"); 594 p(IP_STAT_BADSUM, "\t%" PRIu64 " bad header checksum%s\n"); 595 ps(IP_STAT_TOOSMALL, "\t%" PRIu64 " with size smaller than minimum\n"); 596 ps(IP_STAT_TOOSHORT, "\t%" PRIu64 " with data size < data length\n"); 597 ps(IP_STAT_TOOLONG, "\t%" PRIu64 " with length > max ip packet size\n"); 598 ps(IP_STAT_BADHLEN, "\t%" PRIu64 " with header length < data size\n"); 599 ps(IP_STAT_BADLEN, "\t%" PRIu64 " with data length < header length\n"); 600 ps(IP_STAT_BADOPTIONS, "\t%" PRIu64 " with bad options\n"); 601 ps(IP_STAT_BADVERS, "\t%" PRIu64 " with incorrect version number\n"); 602 p(IP_STAT_FRAGMENTS, "\t%" PRIu64 " fragment%s received\n"); 603 p(IP_STAT_FRAGDROPPED, "\t%" PRIu64 " fragment%s dropped (dup or out of space)\n"); 604 p(IP_STAT_RCVMEMDROP, "\t%" PRIu64 " fragment%s dropped (out of ipqent)\n"); 605 p(IP_STAT_BADFRAGS, "\t%" PRIu64 " malformed fragment%s dropped\n"); 606 p(IP_STAT_FRAGTIMEOUT, "\t%" PRIu64 " fragment%s dropped after timeout\n"); 607 p(IP_STAT_REASSEMBLED, "\t%" PRIu64 " packet%s reassembled ok\n"); 608 p(IP_STAT_DELIVERED, "\t%" PRIu64 " packet%s for this host\n"); 609 p(IP_STAT_NOPROTO, "\t%" PRIu64 " packet%s for unknown/unsupported protocol\n"); 610 p(IP_STAT_FORWARD, "\t%" PRIu64 " packet%s forwarded"); 611 p(IP_STAT_FASTFORWARD, " (%" PRIu64 " packet%s fast forwarded)"); 612 if (ipstat[IP_STAT_FORWARD] || sflag <= 1) 613 putchar('\n'); 614 p(IP_STAT_CANTFORWARD, "\t%" PRIu64 " packet%s not forwardable\n"); 615 p(IP_STAT_REDIRECTSENT, "\t%" PRIu64 " redirect%s sent\n"); 616 p(IP_STAT_NOGIF, "\t%" PRIu64 " packet%s no matching gif found\n"); 617 p(IP_STAT_LOCALOUT, "\t%" PRIu64 " packet%s sent from this host\n"); 618 p(IP_STAT_RAWOUT, "\t%" PRIu64 " packet%s sent with fabricated ip header\n"); 619 p(IP_STAT_ODROPPED, "\t%" PRIu64 " output packet%s dropped due to no bufs, etc.\n"); 620 p(IP_STAT_NOROUTE, "\t%" PRIu64 " output packet%s discarded due to no route\n"); 621 p(IP_STAT_FRAGMENTED, "\t%" PRIu64 " output datagram%s fragmented\n"); 622 p(IP_STAT_OFRAGMENTS, "\t%" PRIu64 " fragment%s created\n"); 623 p(IP_STAT_CANTFRAG, "\t%" PRIu64 " datagram%s that can't be fragmented\n"); 624 p(IP_STAT_BADADDR, "\t%" PRIu64 " datagram%s with bad address in header\n"); 625 #undef ps 626 #undef p 627 } 628 629 /* 630 * Dump ICMP statistics. 631 */ 632 void 633 icmp_stats(u_long off, const char *name) 634 { 635 uint64_t icmpstat[ICMP_NSTATS]; 636 int i, first; 637 638 if (use_sysctl) { 639 size_t size = sizeof(icmpstat); 640 641 if (sysctlbyname("net.inet.icmp.stats", icmpstat, &size, 642 NULL, 0) == -1) 643 return; 644 } else { 645 warnx("%s stats not available via KVM.", name); 646 return; 647 } 648 649 printf("%s:\n", name); 650 651 #define p(f, m) if (icmpstat[f] || sflag <= 1) \ 652 printf(m, icmpstat[f], plural(icmpstat[f])) 653 654 p(ICMP_STAT_ERROR, "\t%" PRIu64 " call%s to icmp_error\n"); 655 p(ICMP_STAT_OLDICMP, 656 "\t%" PRIu64 " error%s not generated because old message was icmp\n"); 657 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 658 if (icmpstat[ICMP_STAT_OUTHIST + i] != 0) { 659 if (first) { 660 printf("\tOutput histogram:\n"); 661 first = 0; 662 } 663 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 664 icmpstat[ICMP_STAT_OUTHIST + i]); 665 } 666 p(ICMP_STAT_BADCODE, "\t%" PRIu64 " message%s with bad code fields\n"); 667 p(ICMP_STAT_TOOSHORT, "\t%" PRIu64 " message%s < minimum length\n"); 668 p(ICMP_STAT_CHECKSUM, "\t%" PRIu64 " bad checksum%s\n"); 669 p(ICMP_STAT_BADLEN, "\t%" PRIu64 " message%s with bad length\n"); 670 p(ICMP_STAT_BMCASTECHO, "\t%" PRIu64 " multicast echo request%s ignored\n"); 671 p(ICMP_STAT_BMCASTTSTAMP, "\t%" PRIu64 " multicast timestamp request%s ignored\n"); 672 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 673 if (icmpstat[ICMP_STAT_INHIST + i] != 0) { 674 if (first) { 675 printf("\tInput histogram:\n"); 676 first = 0; 677 } 678 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 679 icmpstat[ICMP_STAT_INHIST + i]); 680 } 681 p(ICMP_STAT_REFLECT, "\t%" PRIu64 " message response%s generated\n"); 682 p(ICMP_STAT_PMTUCHG, "\t%" PRIu64 " path MTU change%s\n"); 683 #undef p 684 } 685 686 /* 687 * Dump IGMP statistics structure. 688 */ 689 void 690 igmp_stats(u_long off, const char *name) 691 { 692 uint64_t igmpstat[IGMP_NSTATS]; 693 694 if (use_sysctl) { 695 size_t size = sizeof(igmpstat); 696 697 if (sysctlbyname("net.inet.igmp.stats", igmpstat, &size, 698 NULL, 0) == -1) 699 return; 700 } else { 701 warnx("%s stats not available via KVM.", name); 702 return; 703 } 704 705 printf("%s:\n", name); 706 707 #define p(f, m) if (igmpstat[f] || sflag <= 1) \ 708 printf(m, igmpstat[f], plural(igmpstat[f])) 709 #define py(f, m) if (igmpstat[f] || sflag <= 1) \ 710 printf(m, igmpstat[f], igmpstat[f] != 1 ? "ies" : "y") 711 p(IGMP_STAT_RCV_TOTAL, "\t%" PRIu64 " message%s received\n"); 712 p(IGMP_STAT_RCV_TOOSHORT, "\t%" PRIu64 " message%s received with too few bytes\n"); 713 p(IGMP_STAT_RCV_BADSUM, "\t%" PRIu64 " message%s received with bad checksum\n"); 714 py(IGMP_STAT_RCV_QUERIES, "\t%" PRIu64 " membership quer%s received\n"); 715 py(IGMP_STAT_RCV_BADQUERIES, "\t%" PRIu64 " membership quer%s received with invalid field(s)\n"); 716 p(IGMP_STAT_RCV_REPORTS, "\t%" PRIu64 " membership report%s received\n"); 717 p(IGMP_STAT_RCV_BADREPORTS, "\t%" PRIu64 " membership report%s received with invalid field(s)\n"); 718 p(IGMP_STAT_RCV_OURREPORTS, "\t%" PRIu64 " membership report%s received for groups to which we belong\n"); 719 p(IGMP_STAT_SND_REPORTS, "\t%" PRIu64 " membership report%s sent\n"); 720 #undef p 721 #undef py 722 } 723 724 /* 725 * Dump CARP statistics structure. 726 */ 727 void 728 carp_stats(u_long off, const char *name) 729 { 730 uint64_t carpstat[CARP_NSTATS]; 731 732 if (use_sysctl) { 733 size_t size = sizeof(carpstat); 734 735 if (sysctlbyname("net.inet.carp.stats", carpstat, &size, 736 NULL, 0) == -1) 737 return; 738 } else { 739 warnx("%s stats not available via KVM.", name); 740 return; 741 } 742 743 printf("%s:\n", name); 744 745 #define p(f, m) if (carpstat[f] || sflag <= 1) \ 746 printf(m, carpstat[f], plural(carpstat[f])) 747 #define p2(f, m) if (carpstat[f] || sflag <= 1) \ 748 printf(m, carpstat[f]) 749 750 p(CARP_STAT_IPACKETS, "\t%" PRIu64 " packet%s received (IPv4)\n"); 751 p(CARP_STAT_IPACKETS6, "\t%" PRIu64 " packet%s received (IPv6)\n"); 752 p(CARP_STAT_BADIF, 753 "\t\t%" PRIu64 " packet%s discarded for bad interface\n"); 754 p(CARP_STAT_BADTTL, 755 "\t\t%" PRIu64 " packet%s discarded for wrong TTL\n"); 756 p(CARP_STAT_HDROPS, "\t\t%" PRIu64 " packet%s shorter than header\n"); 757 p(CARP_STAT_BADSUM, "\t\t%" PRIu64 758 " packet%s discarded for bad checksum\n"); 759 p(CARP_STAT_BADVER, 760 "\t\t%" PRIu64 " packet%s discarded with a bad version\n"); 761 p2(CARP_STAT_BADLEN, 762 "\t\t%" PRIu64 " discarded because packet was too short\n"); 763 p(CARP_STAT_BADAUTH, 764 "\t\t%" PRIu64 " packet%s discarded for bad authentication\n"); 765 p(CARP_STAT_BADVHID, "\t\t%" PRIu64 " packet%s discarded for bad vhid\n"); 766 p(CARP_STAT_BADADDRS, "\t\t%" PRIu64 767 " packet%s discarded because of a bad address list\n"); 768 p(CARP_STAT_OPACKETS, "\t%" PRIu64 " packet%s sent (IPv4)\n"); 769 p(CARP_STAT_OPACKETS6, "\t%" PRIu64 " packet%s sent (IPv6)\n"); 770 p2(CARP_STAT_ONOMEM, 771 "\t\t%" PRIu64 " send failed due to mbuf memory error\n"); 772 #undef p 773 #undef p2 774 } 775 776 /* 777 * Dump PIM statistics structure. 778 */ 779 void 780 pim_stats(u_long off, const char *name) 781 { 782 struct pimstat pimstat; 783 784 if (off == 0) 785 return; 786 if (kread(off, (char *)&pimstat, sizeof (pimstat)) != 0) { 787 /* XXX: PIM is probably not enabled in the kernel */ 788 return; 789 } 790 791 printf("%s:\n", name); 792 793 #define p(f, m) if (pimstat.f || sflag <= 1) \ 794 printf(m, pimstat.f, plural(pimstat.f)) 795 796 p(pims_rcv_total_msgs, "\t%" PRIu64 " message%s received\n"); 797 p(pims_rcv_total_bytes, "\t%" PRIu64 " byte%s received\n"); 798 p(pims_rcv_tooshort, "\t%" PRIu64 " message%s received with too few bytes\n"); 799 p(pims_rcv_badsum, "\t%" PRIu64 " message%s received with bad checksum\n"); 800 p(pims_rcv_badversion, "\t%" PRIu64 " message%s received with bad version\n"); 801 p(pims_rcv_registers_msgs, "\t%" PRIu64 " data register message%s received\n"); 802 p(pims_rcv_registers_bytes, "\t%" PRIu64 " data register byte%s received\n"); 803 p(pims_rcv_registers_wrongiif, "\t%" PRIu64 " data register message%s received on wrong iif\n"); 804 p(pims_rcv_badregisters, "\t%" PRIu64 " bad register%s received\n"); 805 p(pims_snd_registers_msgs, "\t%" PRIu64 " data register message%s sent\n"); 806 p(pims_snd_registers_bytes, "\t%" PRIu64 " data register byte%s sent\n"); 807 #undef p 808 } 809 810 /* 811 * Dump the ARP statistics structure. 812 */ 813 void 814 arp_stats(u_long off, const char *name) 815 { 816 uint64_t arpstat[ARP_NSTATS]; 817 818 if (use_sysctl) { 819 size_t size = sizeof(arpstat); 820 821 if (sysctlbyname("net.inet.arp.stats", arpstat, &size, 822 NULL, 0) == -1) 823 return; 824 } else { 825 warnx("%s stats not available via KVM.", name); 826 return; 827 } 828 829 printf("%s:\n", name); 830 831 #define ps(f, m) if (arpstat[f] || sflag <= 1) \ 832 printf(m, arpstat[f]) 833 #define p(f, m) if (arpstat[f] || sflag <= 1) \ 834 printf(m, arpstat[f], plural(arpstat[f])) 835 836 p(ARP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 837 p(ARP_STAT_SNDREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 838 p(ARP_STAT_SENDREQUEST, "\t\t%" PRIu64 " request packet%s\n"); 839 840 p(ARP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 841 p(ARP_STAT_RCVREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 842 p(ARP_STAT_RCVREQUEST, "\t\t%" PRIu64 " valid request packet%s\n"); 843 p(ARP_STAT_RCVMCAST, "\t\t%" PRIu64 " broadcast/multicast packet%s\n"); 844 p(ARP_STAT_RCVBADPROTO, "\t\t%" PRIu64 " packet%s with unknown protocol type\n"); 845 p(ARP_STAT_RCVBADLEN, "\t\t%" PRIu64 " packet%s with bad (short) length\n"); 846 p(ARP_STAT_RCVZEROTPA, "\t\t%" PRIu64 " packet%s with null target IP address\n"); 847 p(ARP_STAT_RCVZEROSPA, "\t\t%" PRIu64 " packet%s with null source IP address\n"); 848 ps(ARP_STAT_RCVNOINT, "\t\t%" PRIu64 " could not be mapped to an interface\n"); 849 p(ARP_STAT_RCVLOCALSHA, "\t\t%" PRIu64 " packet%s sourced from a local hardware " 850 "address\n"); 851 p(ARP_STAT_RCVBCASTSHA, "\t\t%" PRIu64 " packet%s with a broadcast " 852 "source hardware address\n"); 853 p(ARP_STAT_RCVLOCALSPA, "\t\t%" PRIu64 " duplicate%s for a local IP address\n"); 854 p(ARP_STAT_RCVOVERPERM, "\t\t%" PRIu64 " attempt%s to overwrite a static entry\n"); 855 p(ARP_STAT_RCVOVERINT, "\t\t%" PRIu64 " packet%s received on wrong interface\n"); 856 p(ARP_STAT_RCVOVER, "\t\t%" PRIu64 " entry%s overwritten\n"); 857 p(ARP_STAT_RCVLENCHG, "\t\t%" PRIu64 " change%s in hardware address length\n"); 858 859 p(ARP_STAT_DFRTOTAL, "\t%" PRIu64 " packet%s deferred pending ARP resolution\n"); 860 ps(ARP_STAT_DFRSENT, "\t\t%" PRIu64 " sent\n"); 861 ps(ARP_STAT_DFRDROPPED, "\t\t%" PRIu64 " dropped\n"); 862 863 p(ARP_STAT_ALLOCFAIL, "\t%" PRIu64 " failure%s to allocate llinfo\n"); 864 865 #undef ps 866 #undef p 867 } 868 869 /* 870 * Pretty print an Internet address (net address + port). 871 * Take numeric_addr and numeric_port into consideration. 872 */ 873 void 874 inetprint(struct in_addr *in, uint16_t port, const char *proto, 875 int port_numeric) 876 { 877 struct servent *sp = 0; 878 char line[80], *cp; 879 size_t space; 880 881 (void)snprintf(line, sizeof line, "%.*s.", 882 (Aflag && !numeric_addr) ? 12 : 16, inetname(in)); 883 cp = strchr(line, '\0'); 884 if (!port_numeric && port) 885 sp = getservbyport((int)port, proto); 886 space = sizeof line - (cp-line); 887 if (sp || port == 0) 888 (void)snprintf(cp, space, "%s", sp ? sp->s_name : "*"); 889 else 890 (void)snprintf(cp, space, "%u", ntohs(port)); 891 (void)printf(" %-*.*s", width, width, line); 892 } 893 894 /* 895 * Construct an Internet address representation. 896 * If numeric_addr has been supplied, give 897 * numeric value, otherwise try for symbolic name. 898 */ 899 char * 900 inetname(struct in_addr *inp) 901 { 902 char *cp; 903 static char line[50]; 904 struct hostent *hp; 905 struct netent *np; 906 static char domain[MAXHOSTNAMELEN + 1]; 907 static int first = 1; 908 909 if (first && !numeric_addr) { 910 first = 0; 911 if (gethostname(domain, sizeof domain) == 0) { 912 domain[sizeof(domain) - 1] = '\0'; 913 if ((cp = strchr(domain, '.'))) 914 (void) strlcpy(domain, cp + 1, sizeof(domain)); 915 else 916 domain[0] = 0; 917 } else 918 domain[0] = 0; 919 } 920 cp = 0; 921 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 922 int net = inet_netof(*inp); 923 int lna = inet_lnaof(*inp); 924 925 if (lna == INADDR_ANY) { 926 np = getnetbyaddr(net, AF_INET); 927 if (np) 928 cp = np->n_name; 929 } 930 if (cp == 0) { 931 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 932 if (hp) { 933 if ((cp = strchr(hp->h_name, '.')) && 934 !strcmp(cp + 1, domain)) 935 *cp = 0; 936 cp = hp->h_name; 937 } 938 } 939 } 940 if (inp->s_addr == INADDR_ANY) 941 strlcpy(line, "*", sizeof line); 942 else if (cp) 943 strlcpy(line, cp, sizeof line); 944 else { 945 inp->s_addr = ntohl(inp->s_addr); 946 #define C(x) ((x) & 0xff) 947 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 948 C(inp->s_addr >> 24), C(inp->s_addr >> 16), 949 C(inp->s_addr >> 8), C(inp->s_addr)); 950 #undef C 951 } 952 return (line); 953 } 954 955 /* 956 * Dump the contents of a TCP PCB. 957 */ 958 void 959 tcp_dump(u_long off, const char *name, u_long pcbaddr) 960 { 961 callout_impl_t *ci; 962 struct tcpcb tcpcb; 963 int i, hardticks; 964 struct kinfo_pcb *pcblist; 965 size_t j, len; 966 967 if (use_sysctl) 968 pcblist = getpcblist_sysctl(name, &len); 969 else 970 pcblist = getpcblist_kmem(off, name, &len); 971 972 for (j = 0; j < len; j++) 973 if (pcblist[j].ki_ppcbaddr == pcbaddr) 974 break; 975 free(pcblist); 976 977 if (j == len) 978 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 979 980 kread(pcbaddr, (char *)&tcpcb, sizeof(tcpcb)); 981 hardticks = get_hardticks(); 982 983 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 984 985 printf("Timers:\n"); 986 for (i = 0; i < TCPT_NTIMERS; i++) { 987 ci = (callout_impl_t *)&tcpcb.t_timer[i]; 988 printf("\t%s: %d", tcptimers[i], 989 (ci->c_flags & CALLOUT_PENDING) ? 990 ci->c_time - hardticks : 0); 991 } 992 printf("\n\n"); 993 994 if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) 995 printf("State: %d", tcpcb.t_state); 996 else 997 printf("State: %s", tcpstates[tcpcb.t_state]); 998 printf(", flags 0x%x, inpcb 0x%lx, in6pcb 0x%lx\n\n", tcpcb.t_flags, 999 (u_long)tcpcb.t_inpcb, (u_long)tcpcb.t_in6pcb); 1000 1001 printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcpcb.t_rxtshift, 1002 tcpcb.t_rxtcur, tcpcb.t_dupacks); 1003 printf("peermss %u, ourmss %u, segsz %u, segqlen %u\n\n", 1004 tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz, tcpcb.t_segqlen); 1005 1006 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1007 tcpcb.snd_una, tcpcb.snd_nxt, tcpcb.snd_up); 1008 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %lu\n\n", 1009 tcpcb.snd_wl1, tcpcb.snd_wl2, tcpcb.iss, tcpcb.snd_wnd); 1010 1011 printf("rcv_wnd %lu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1012 tcpcb.rcv_wnd, tcpcb.rcv_nxt, tcpcb.rcv_up, tcpcb.irs); 1013 1014 printf("rcv_adv %u, snd_max %u, snd_cwnd %lu, snd_ssthresh %lu\n", 1015 tcpcb.rcv_adv, tcpcb.snd_max, tcpcb.snd_cwnd, tcpcb.snd_ssthresh); 1016 1017 printf("rcvtime %u, rtttime %u, rtseq %u, srtt %d, rttvar %d, " 1018 "rttmin %d, max_sndwnd %lu\n\n", tcpcb.t_rcvtime, tcpcb.t_rtttime, 1019 tcpcb.t_rtseq, tcpcb.t_srtt, tcpcb.t_rttvar, tcpcb.t_rttmin, 1020 tcpcb.max_sndwnd); 1021 1022 printf("oobflags %d, iobc %d, softerror %d\n\n", tcpcb.t_oobflags, 1023 tcpcb.t_iobc, tcpcb.t_softerror); 1024 1025 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1026 tcpcb.snd_scale, tcpcb.rcv_scale, tcpcb.request_r_scale, 1027 tcpcb.requested_s_scale); 1028 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1029 tcpcb.ts_recent, tcpcb.ts_recent_age, tcpcb.last_ack_sent); 1030 } 1031
Indexes created Thu Oct 02 14:10:14 GMT 2025