inet.c revision 1.105
1 /* $NetBSD: inet.c,v 1.105 2015/02/07 19:36:06 christos 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 1.105 2015/02/07 19:36:06 christos 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 "netstat.h" 92 #include "vtw.h" 93 #include "prog_ops.h" 94 95 char *inetname(struct in_addr *); 96 void inetprint(struct in_addr *, u_int16_t, const char *, int); 97 98 void print_vtw_v4(const vtw_t *); 99 100 /* 101 * Print a summary of connections related to an Internet 102 * protocol. For TCP, also give state of connection. 103 * Listening processes (aflag) are suppressed unless the 104 * -a (all) flag is specified. 105 */ 106 static int width; 107 static int compact; 108 109 /* VTW-related variables. */ 110 static struct timeval now; 111 112 static void 113 protoprhdr(void) 114 { 115 printf("Active Internet connections"); 116 if (aflag) 117 printf(" (including servers)"); 118 putchar('\n'); 119 if (Aflag) 120 printf("%-8.8s ", "PCB"); 121 printf( 122 Vflag ? "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %-13.13s Expires\n" 123 : "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %s\n", 124 "Proto", "Recv-Q", "Send-Q", compact ? "" : " ", 125 width, width, "Local Address", 126 width, width, "Foreign Address", 127 "State"); 128 } 129 130 static void 131 protopr0(intptr_t ppcb, u_long rcv_sb_cc, u_long snd_sb_cc, 132 struct in_addr *laddr, u_int16_t lport, 133 struct in_addr *faddr, u_int16_t fport, 134 short t_state, const char *name, int inp_flags, 135 const struct timeval *expires) 136 { 137 static const char *shorttcpstates[] = { 138 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 139 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 140 "LASTAK", "FWAIT2", "TMWAIT", 141 }; 142 int istcp; 143 144 istcp = strcmp(name, "tcp") == 0; 145 146 if (Aflag) { 147 printf("%8" PRIxPTR " ", ppcb); 148 } 149 printf("%-5.5s %6ld %6ld%s", name, rcv_sb_cc, snd_sb_cc, 150 compact ? "" : " "); 151 if (numeric_port) { 152 inetprint(laddr, lport, name, 1); 153 inetprint(faddr, fport, name, 1); 154 } else if (inp_flags & INP_ANONPORT) { 155 inetprint(laddr, lport, name, 1); 156 inetprint(faddr, fport, name, 0); 157 } else { 158 inetprint(laddr, lport, name, 0); 159 inetprint(faddr, fport, name, 0); 160 } 161 if (istcp) { 162 if (t_state < 0 || t_state >= TCP_NSTATES) 163 printf(" %d", t_state); 164 else 165 printf(" %s", compact ? shorttcpstates[t_state] : 166 tcpstates[t_state]); 167 } 168 if (Vflag && expires != NULL) { 169 if (expires->tv_sec == 0 && expires->tv_usec == -1) 170 printf(" reclaimed"); 171 else { 172 struct timeval delta; 173 174 timersub(expires, &now, &delta); 175 printf(" %.3fms", 176 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 177 } 178 } 179 putchar('\n'); 180 } 181 182 static void 183 dbg_printf(const char *fmt, ...) 184 { 185 return; 186 } 187 188 void 189 print_vtw_v4(const vtw_t *vtw) 190 { 191 const vtw_v4_t *v4 = (const vtw_v4_t *)vtw; 192 struct timeval delta; 193 struct in_addr la, fa; 194 char buf[2][32]; 195 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 196 197 la.s_addr = v4->laddr; 198 fa.s_addr = v4->faddr; 199 200 snprintf(&buf[0][0], 32, "%s", inet_ntoa(la)); 201 snprintf(&buf[1][0], 32, "%s", inet_ntoa(fa)); 202 203 timersub(&vtw->expire, &now, &delta); 204 205 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 206 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n" 207 ,buf[0], ntohs(v4->lport) 208 ,buf[1], ntohs(v4->fport)); 209 if (!(Vflag && vflag)) 210 return; 211 } else if (vtw->expire.tv_sec == 0) 212 return; 213 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 214 dbg_printf("%15.15s:%d %15.15s:%d expired\n" 215 ,buf[0], ntohs(v4->lport) 216 ,buf[1], ntohs(v4->fport)); 217 return; 218 } else { 219 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n" 220 ,buf[0], ntohs(v4->lport) 221 ,buf[1], ntohs(v4->fport) 222 ,delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 223 } 224 protopr0(0, 0, 0, 225 &la, v4->lport, 226 &fa, v4->fport, 227 TCPS_TIME_WAIT, "tcp", 0, &vtw->expire); 228 } 229 230 struct kinfo_pcb * 231 getpcblist_sysctl(const char *name, size_t *len) { 232 int mib[8]; 233 size_t namelen = 0, size = 0; 234 char *mibname = NULL; 235 struct kinfo_pcb *pcblist; 236 237 memset(mib, 0, sizeof(mib)); 238 239 if (asprintf(&mibname, "net.inet%s.%s.pcblist", name + 3, name) == -1) 240 err(1, "asprintf"); 241 242 /* get dynamic pcblist node */ 243 if (sysctlnametomib(mibname, mib, &namelen) == -1) 244 err(1, "sysctlnametomib: %s", mibname); 245 246 free(mibname); 247 248 if (prog_sysctl(mib, __arraycount(mib), NULL, &size, NULL, 0) == -1) 249 err(1, "sysctl (query)"); 250 251 if ((pcblist = malloc(size)) == NULL) 252 err(1, "malloc"); 253 memset(pcblist, 0, size); 254 255 mib[6] = sizeof(*pcblist); 256 mib[7] = size / sizeof(*pcblist); 257 258 if (prog_sysctl(mib, __arraycount(mib), pcblist, &size, NULL, 0) == -1) 259 err(1, "sysctl (copy)"); 260 261 *len = size / sizeof(*pcblist); 262 return pcblist; 263 264 } 265 266 static struct kinfo_pcb * 267 getpcblist_kmem(u_long off, const char *name, size_t *len) { 268 struct inpcbtable table; 269 struct inpcb_hdr *next, *prev; 270 struct inpcb inpcb; 271 struct tcpcb tcpcb; 272 struct socket sockb; 273 int istcp = strcmp(name, "tcp") == 0; 274 struct kinfo_pcb *pcblist; 275 size_t size = 100, i; 276 struct sockaddr_in sin; 277 struct inpcbqueue *head; 278 279 if (off == 0) { 280 *len = 0; 281 return NULL; 282 } 283 284 kread(off, (char *)&table, sizeof table); 285 head = &table.inpt_queue; 286 next = TAILQ_FIRST(head); 287 prev = TAILQ_END(head); 288 289 if ((pcblist = malloc(size)) == NULL) 290 err(1, "malloc"); 291 292 i = 0; 293 while (next != TAILQ_END(head)) { 294 kread((u_long)next, (char *)&inpcb, sizeof inpcb); 295 prev = next; 296 next = TAILQ_NEXT(&inpcb, inp_queue); 297 298 if (inpcb.inp_af != AF_INET) 299 continue; 300 301 kread((u_long)inpcb.inp_socket, (char *)&sockb, sizeof(sockb)); 302 if (istcp) { 303 kread((u_long)inpcb.inp_ppcb, 304 (char *)&tcpcb, sizeof (tcpcb)); 305 } 306 pcblist[i].ki_ppcbaddr = 307 istcp ? (uintptr_t) inpcb.inp_ppcb : (uintptr_t) prev; 308 pcblist[i].ki_rcvq = (uint64_t)sockb.so_rcv.sb_cc; 309 pcblist[i].ki_sndq = (uint64_t)sockb.so_snd.sb_cc; 310 311 sin.sin_addr = inpcb.inp_laddr; 312 sin.sin_port = inpcb.inp_lport; 313 memcpy(&pcblist[i].ki_s, &sin, sizeof(sin)); 314 sin.sin_addr = inpcb.inp_faddr; 315 sin.sin_port = inpcb.inp_fport; 316 memcpy(&pcblist[i].ki_d, &sin, sizeof(sin)); 317 pcblist[i].ki_tstate = tcpcb.t_state; 318 pcblist[i].ki_pflags = inpcb.inp_flags; 319 if (i++ == size) { 320 struct kinfo_pcb *n = realloc(pcblist, size += 100); 321 if (n == NULL) 322 err(1, "realloc"); 323 pcblist = n; 324 } 325 } 326 *len = i; 327 return pcblist; 328 } 329 330 void 331 protopr(u_long off, const char *name) 332 { 333 static int first = 1; 334 struct kinfo_pcb *pcblist; 335 size_t i, len; 336 337 compact = 0; 338 if (Aflag) { 339 if (!numeric_addr) 340 width = 18; 341 else { 342 width = 21; 343 compact = 1; 344 } 345 } else 346 width = 22; 347 348 if (use_sysctl) 349 pcblist = getpcblist_sysctl(name, &len); 350 else 351 pcblist = getpcblist_kmem(off, name, &len); 352 353 for (i = 0; i < len; i++) { 354 struct sockaddr_in src, dst; 355 356 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 357 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 358 359 if (!aflag && 360 inet_lnaof(dst.sin_addr) == INADDR_ANY) 361 continue; 362 363 if (first) { 364 protoprhdr(); 365 first = 0; 366 } 367 protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 368 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 369 &src.sin_addr, src.sin_port, 370 &dst.sin_addr, dst.sin_port, 371 pcblist[i].ki_tstate, name, 372 pcblist[i].ki_pflags, NULL); 373 } 374 375 free(pcblist); 376 377 if (strcmp(name, "tcp") == 0) { 378 struct timeval t; 379 timebase(&t); 380 gettimeofday(&now, NULL); 381 timersub(&now, &t, &now); 382 show_vtw_v4(print_vtw_v4); 383 } 384 } 385 386 /* 387 * Dump TCP statistics structure. 388 */ 389 void 390 tcp_stats(u_long off, const char *name) 391 { 392 uint64_t tcpstat[TCP_NSTATS]; 393 394 if (use_sysctl) { 395 size_t size = sizeof(tcpstat); 396 397 if (sysctlbyname("net.inet.tcp.stats", tcpstat, &size, 398 NULL, 0) == -1) 399 return; 400 } else { 401 warnx("%s stats not available via KVM.", name); 402 return; 403 } 404 405 printf ("%s:\n", name); 406 407 #define ps(f, m) if (tcpstat[f] || sflag <= 1) \ 408 printf(m, tcpstat[f]) 409 #define p(f, m) if (tcpstat[f] || sflag <= 1) \ 410 printf(m, tcpstat[f], plural(tcpstat[f])) 411 #define p2(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 412 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 413 tcpstat[f2], plural(tcpstat[f2])) 414 #define p2s(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 415 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 416 tcpstat[f2]) 417 #define p3(f, m) if (tcpstat[f] || sflag <= 1) \ 418 printf(m, tcpstat[f], plurales(tcpstat[f])) 419 420 p(TCP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 421 p2(TCP_STAT_SNDPACK,TCP_STAT_SNDBYTE, 422 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s)\n"); 423 p2(TCP_STAT_SNDREXMITPACK, TCP_STAT_SNDREXMITBYTE, 424 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s) retransmitted\n"); 425 p2s(TCP_STAT_SNDACKS, TCP_STAT_DELACK, 426 "\t\t%" PRIu64 " ack-only packet%s (%" PRIu64 " delayed)\n"); 427 p(TCP_STAT_SNDURG, "\t\t%" PRIu64 " URG only packet%s\n"); 428 p(TCP_STAT_SNDPROBE, "\t\t%" PRIu64 " window probe packet%s\n"); 429 p(TCP_STAT_SNDWINUP, "\t\t%" PRIu64 " window update packet%s\n"); 430 p(TCP_STAT_SNDCTRL, "\t\t%" PRIu64 " control packet%s\n"); 431 p(TCP_STAT_SELFQUENCH, 432 "\t\t%" PRIu64 " send attempt%s resulted in self-quench\n"); 433 p(TCP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 434 p2(TCP_STAT_RCVACKPACK, TCP_STAT_RCVACKBYTE, 435 "\t\t%" PRIu64 " ack%s (for %" PRIu64 " byte%s)\n"); 436 p(TCP_STAT_RCVDUPACK, "\t\t%" PRIu64 " duplicate ack%s\n"); 437 p(TCP_STAT_RCVACKTOOMUCH, "\t\t%" PRIu64 " ack%s for unsent data\n"); 438 p2(TCP_STAT_RCVPACK, TCP_STAT_RCVBYTE, 439 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) received in-sequence\n"); 440 p2(TCP_STAT_RCVDUPPACK, TCP_STAT_RCVDUPBYTE, 441 "\t\t%" PRIu64 " completely duplicate packet%s (%" PRIu64 " byte%s)\n"); 442 p(TCP_STAT_PAWSDROP, "\t\t%" PRIu64 " old duplicate packet%s\n"); 443 p2(TCP_STAT_RCVPARTDUPPACK, TCP_STAT_RCVPARTDUPBYTE, 444 "\t\t%" PRIu64 " packet%s with some dup. data (%" PRIu64 " byte%s duped)\n"); 445 p2(TCP_STAT_RCVOOPACK, TCP_STAT_RCVOOBYTE, 446 "\t\t%" PRIu64 " out-of-order packet%s (%" PRIu64 " byte%s)\n"); 447 p2(TCP_STAT_RCVPACKAFTERWIN, TCP_STAT_RCVBYTEAFTERWIN, 448 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) of data after window\n"); 449 p(TCP_STAT_RCVWINPROBE, "\t\t%" PRIu64 " window probe%s\n"); 450 p(TCP_STAT_RCVWINUPD, "\t\t%" PRIu64 " window update packet%s\n"); 451 p(TCP_STAT_RCVAFTERCLOSE, "\t\t%" PRIu64 " packet%s received after close\n"); 452 p(TCP_STAT_RCVBADSUM, "\t\t%" PRIu64 " discarded for bad checksum%s\n"); 453 p(TCP_STAT_RCVBADOFF, "\t\t%" PRIu64 " discarded for bad header offset field%s\n"); 454 ps(TCP_STAT_RCVSHORT, "\t\t%" PRIu64 " discarded because packet too short\n"); 455 p(TCP_STAT_CONNATTEMPT, "\t%" PRIu64 " connection request%s\n"); 456 p(TCP_STAT_ACCEPTS, "\t%" PRIu64 " connection accept%s\n"); 457 p(TCP_STAT_CONNECTS, 458 "\t%" PRIu64 " connection%s established (including accepts)\n"); 459 p2(TCP_STAT_CLOSED, TCP_STAT_DROPS, 460 "\t%" PRIu64 " connection%s closed (including %" PRIu64 " drop%s)\n"); 461 p(TCP_STAT_CONNDROPS, "\t%" PRIu64 " embryonic connection%s dropped\n"); 462 p(TCP_STAT_DELAYED_FREE, "\t%" PRIu64 " delayed free%s of tcpcb\n"); 463 p2(TCP_STAT_RTTUPDATED, TCP_STAT_SEGSTIMED, 464 "\t%" PRIu64 " segment%s updated rtt (of %" PRIu64 " attempt%s)\n"); 465 p(TCP_STAT_REXMTTIMEO, "\t%" PRIu64 " retransmit timeout%s\n"); 466 p(TCP_STAT_TIMEOUTDROP, 467 "\t\t%" PRIu64 " connection%s dropped by rexmit timeout\n"); 468 p2(TCP_STAT_PERSISTTIMEO, TCP_STAT_PERSISTDROPS, 469 "\t%" PRIu64 " persist timeout%s (resulting in %" PRIu64 " dropped " 470 "connection%s)\n"); 471 p(TCP_STAT_KEEPTIMEO, "\t%" PRIu64 " keepalive timeout%s\n"); 472 p(TCP_STAT_KEEPPROBE, "\t\t%" PRIu64 " keepalive probe%s sent\n"); 473 p(TCP_STAT_KEEPDROPS, "\t\t%" PRIu64 " connection%s dropped by keepalive\n"); 474 p(TCP_STAT_PREDACK, "\t%" PRIu64 " correct ACK header prediction%s\n"); 475 p(TCP_STAT_PREDDAT, "\t%" PRIu64 " correct data packet header prediction%s\n"); 476 p3(TCP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 477 ps(TCP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 478 p(TCP_STAT_CONNSDRAINED, "\t%" PRIu64 " connection%s drained due to memory " 479 "shortage\n"); 480 p(TCP_STAT_PMTUBLACKHOLE, "\t%" PRIu64 " PMTUD blackhole%s detected\n"); 481 482 p(TCP_STAT_BADSYN, "\t%" PRIu64 " bad connection attempt%s\n"); 483 ps(TCP_STAT_SC_ADDED, "\t%" PRIu64 " SYN cache entries added\n"); 484 p(TCP_STAT_SC_COLLISIONS, "\t\t%" PRIu64 " hash collision%s\n"); 485 ps(TCP_STAT_SC_COMPLETED, "\t\t%" PRIu64 " completed\n"); 486 ps(TCP_STAT_SC_ABORTED, "\t\t%" PRIu64 " aborted (no space to build PCB)\n"); 487 ps(TCP_STAT_SC_TIMED_OUT, "\t\t%" PRIu64 " timed out\n"); 488 ps(TCP_STAT_SC_OVERFLOWED, "\t\t%" PRIu64 " dropped due to overflow\n"); 489 ps(TCP_STAT_SC_BUCKETOVERFLOW, "\t\t%" PRIu64 " dropped due to bucket overflow\n"); 490 ps(TCP_STAT_SC_RESET, "\t\t%" PRIu64 " dropped due to RST\n"); 491 ps(TCP_STAT_SC_UNREACH, "\t\t%" PRIu64 " dropped due to ICMP unreachable\n"); 492 ps(TCP_STAT_SC_DELAYED_FREE, "\t\t%" PRIu64 " delayed free of SYN cache " 493 "entries\n"); 494 p(TCP_STAT_SC_RETRANSMITTED, "\t%" PRIu64 " SYN,ACK%s retransmitted\n"); 495 p(TCP_STAT_SC_DUPESYN, "\t%" PRIu64 " duplicate SYN%s received for entries " 496 "already in the cache\n"); 497 p(TCP_STAT_SC_DROPPED, "\t%" PRIu64 " SYN%s dropped (no route or no space)\n"); 498 p(TCP_STAT_BADSIG, "\t%" PRIu64 " packet%s with bad signature\n"); 499 p(TCP_STAT_GOODSIG, "\t%" PRIu64 " packet%s with good signature\n"); 500 501 p(TCP_STAT_ECN_SHS, "\t%" PRIu64 " successful ECN handshake%s\n"); 502 p(TCP_STAT_ECN_CE, "\t%" PRIu64 " packet%s with ECN CE bit\n"); 503 p(TCP_STAT_ECN_ECT, "\t%" PRIu64 " packet%s ECN ECT(0) bit\n"); 504 #undef p 505 #undef ps 506 #undef p2 507 #undef p2s 508 #undef p3 509 show_vtw_stats(); 510 } 511 512 /* 513 * Dump UDP statistics structure. 514 */ 515 void 516 udp_stats(u_long off, const char *name) 517 { 518 uint64_t udpstat[UDP_NSTATS]; 519 u_quad_t delivered; 520 521 if (use_sysctl) { 522 size_t size = sizeof(udpstat); 523 524 if (sysctlbyname("net.inet.udp.stats", udpstat, &size, 525 NULL, 0) == -1) 526 return; 527 } else { 528 warnx("%s stats not available via KVM.", name); 529 return; 530 } 531 532 printf ("%s:\n", name); 533 534 #define ps(f, m) if (udpstat[f] || sflag <= 1) \ 535 printf(m, udpstat[f]) 536 #define p(f, m) if (udpstat[f] || sflag <= 1) \ 537 printf(m, udpstat[f], plural(udpstat[f])) 538 #define p3(f, m) if (udpstat[f] || sflag <= 1) \ 539 printf(m, udpstat[f], plurales(udpstat[f])) 540 541 p(UDP_STAT_IPACKETS, "\t%" PRIu64 " datagram%s received\n"); 542 ps(UDP_STAT_HDROPS, "\t%" PRIu64 " with incomplete header\n"); 543 ps(UDP_STAT_BADLEN, "\t%" PRIu64 " with bad data length field\n"); 544 ps(UDP_STAT_BADSUM, "\t%" PRIu64 " with bad checksum\n"); 545 ps(UDP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 546 p(UDP_STAT_NOPORTBCAST, 547 "\t%" PRIu64 " broadcast/multicast datagram%s dropped due to no socket\n"); 548 ps(UDP_STAT_FULLSOCK, "\t%" PRIu64 " dropped due to full socket buffers\n"); 549 delivered = udpstat[UDP_STAT_IPACKETS] - 550 udpstat[UDP_STAT_HDROPS] - 551 udpstat[UDP_STAT_BADLEN] - 552 udpstat[UDP_STAT_BADSUM] - 553 udpstat[UDP_STAT_NOPORT] - 554 udpstat[UDP_STAT_NOPORTBCAST] - 555 udpstat[UDP_STAT_FULLSOCK]; 556 if (delivered || sflag <= 1) 557 printf("\t%" PRIu64 " delivered\n", delivered); 558 p3(UDP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 559 p(UDP_STAT_OPACKETS, "\t%" PRIu64 " datagram%s output\n"); 560 561 #undef ps 562 #undef p 563 #undef p3 564 } 565 566 /* 567 * Dump IP statistics structure. 568 */ 569 void 570 ip_stats(u_long off, const char *name) 571 { 572 uint64_t ipstat[IP_NSTATS]; 573 574 if (use_sysctl) { 575 size_t size = sizeof(ipstat); 576 577 if (sysctlbyname("net.inet.ip.stats", ipstat, &size, 578 NULL, 0) == -1) 579 return; 580 } else { 581 warnx("%s stats not available via KVM.", name); 582 return; 583 } 584 585 printf("%s:\n", name); 586 587 #define ps(f, m) if (ipstat[f] || sflag <= 1) \ 588 printf(m, ipstat[f]) 589 #define p(f, m) if (ipstat[f] || sflag <= 1) \ 590 printf(m, ipstat[f], plural(ipstat[f])) 591 592 p(IP_STAT_TOTAL, "\t%" PRIu64 " total packet%s received\n"); 593 p(IP_STAT_BADSUM, "\t%" PRIu64 " bad header checksum%s\n"); 594 ps(IP_STAT_TOOSMALL, "\t%" PRIu64 " with size smaller than minimum\n"); 595 ps(IP_STAT_TOOSHORT, "\t%" PRIu64 " with data size < data length\n"); 596 ps(IP_STAT_TOOLONG, "\t%" PRIu64 " with length > max ip packet size\n"); 597 ps(IP_STAT_BADHLEN, "\t%" PRIu64 " with header length < data size\n"); 598 ps(IP_STAT_BADLEN, "\t%" PRIu64 " with data length < header length\n"); 599 ps(IP_STAT_BADOPTIONS, "\t%" PRIu64 " with bad options\n"); 600 ps(IP_STAT_BADVERS, "\t%" PRIu64 " with incorrect version number\n"); 601 p(IP_STAT_FRAGMENTS, "\t%" PRIu64 " fragment%s received\n"); 602 p(IP_STAT_FRAGDROPPED, "\t%" PRIu64 " fragment%s dropped (dup or out of space)\n"); 603 p(IP_STAT_RCVMEMDROP, "\t%" PRIu64 " fragment%s dropped (out of ipqent)\n"); 604 p(IP_STAT_BADFRAGS, "\t%" PRIu64 " malformed fragment%s dropped\n"); 605 p(IP_STAT_FRAGTIMEOUT, "\t%" PRIu64 " fragment%s dropped after timeout\n"); 606 p(IP_STAT_REASSEMBLED, "\t%" PRIu64 " packet%s reassembled ok\n"); 607 p(IP_STAT_DELIVERED, "\t%" PRIu64 " packet%s for this host\n"); 608 p(IP_STAT_NOPROTO, "\t%" PRIu64 " packet%s for unknown/unsupported protocol\n"); 609 p(IP_STAT_FORWARD, "\t%" PRIu64 " packet%s forwarded"); 610 p(IP_STAT_FASTFORWARD, " (%" PRIu64 " packet%s fast forwarded)"); 611 if (ipstat[IP_STAT_FORWARD] || sflag <= 1) 612 putchar('\n'); 613 p(IP_STAT_CANTFORWARD, "\t%" PRIu64 " packet%s not forwardable\n"); 614 p(IP_STAT_REDIRECTSENT, "\t%" PRIu64 " redirect%s sent\n"); 615 p(IP_STAT_NOGIF, "\t%" PRIu64 " packet%s no matching gif found\n"); 616 p(IP_STAT_LOCALOUT, "\t%" PRIu64 " packet%s sent from this host\n"); 617 p(IP_STAT_RAWOUT, "\t%" PRIu64 " packet%s sent with fabricated ip header\n"); 618 p(IP_STAT_ODROPPED, "\t%" PRIu64 " output packet%s dropped due to no bufs, etc.\n"); 619 p(IP_STAT_NOROUTE, "\t%" PRIu64 " output packet%s discarded due to no route\n"); 620 p(IP_STAT_FRAGMENTED, "\t%" PRIu64 " output datagram%s fragmented\n"); 621 p(IP_STAT_OFRAGMENTS, "\t%" PRIu64 " fragment%s created\n"); 622 p(IP_STAT_CANTFRAG, "\t%" PRIu64 " datagram%s that can't be fragmented\n"); 623 p(IP_STAT_BADADDR, "\t%" PRIu64 " datagram%s with bad address in header\n"); 624 #undef ps 625 #undef p 626 } 627 628 /* 629 * Dump ICMP statistics. 630 */ 631 void 632 icmp_stats(u_long off, const char *name) 633 { 634 uint64_t icmpstat[ICMP_NSTATS]; 635 int i, first; 636 637 if (use_sysctl) { 638 size_t size = sizeof(icmpstat); 639 640 if (sysctlbyname("net.inet.icmp.stats", icmpstat, &size, 641 NULL, 0) == -1) 642 return; 643 } else { 644 warnx("%s stats not available via KVM.", name); 645 return; 646 } 647 648 printf("%s:\n", name); 649 650 #define p(f, m) if (icmpstat[f] || sflag <= 1) \ 651 printf(m, icmpstat[f], plural(icmpstat[f])) 652 653 p(ICMP_STAT_ERROR, "\t%" PRIu64 " call%s to icmp_error\n"); 654 p(ICMP_STAT_OLDICMP, 655 "\t%" PRIu64 " error%s not generated because old message was icmp\n"); 656 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 657 if (icmpstat[ICMP_STAT_OUTHIST + i] != 0) { 658 if (first) { 659 printf("\tOutput histogram:\n"); 660 first = 0; 661 } 662 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 663 icmpstat[ICMP_STAT_OUTHIST + i]); 664 } 665 p(ICMP_STAT_BADCODE, "\t%" PRIu64 " message%s with bad code fields\n"); 666 p(ICMP_STAT_TOOSHORT, "\t%" PRIu64 " message%s < minimum length\n"); 667 p(ICMP_STAT_CHECKSUM, "\t%" PRIu64 " bad checksum%s\n"); 668 p(ICMP_STAT_BADLEN, "\t%" PRIu64 " message%s with bad length\n"); 669 p(ICMP_STAT_BMCASTECHO, "\t%" PRIu64 " multicast echo request%s ignored\n"); 670 p(ICMP_STAT_BMCASTTSTAMP, "\t%" PRIu64 " multicast timestamp request%s ignored\n"); 671 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 672 if (icmpstat[ICMP_STAT_INHIST + i] != 0) { 673 if (first) { 674 printf("\tInput histogram:\n"); 675 first = 0; 676 } 677 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 678 icmpstat[ICMP_STAT_INHIST + i]); 679 } 680 p(ICMP_STAT_REFLECT, "\t%" PRIu64 " message response%s generated\n"); 681 p(ICMP_STAT_PMTUCHG, "\t%" PRIu64 " path MTU change%s\n"); 682 #undef p 683 } 684 685 /* 686 * Dump IGMP statistics structure. 687 */ 688 void 689 igmp_stats(u_long off, const char *name) 690 { 691 uint64_t igmpstat[IGMP_NSTATS]; 692 693 if (use_sysctl) { 694 size_t size = sizeof(igmpstat); 695 696 if (sysctlbyname("net.inet.igmp.stats", igmpstat, &size, 697 NULL, 0) == -1) 698 return; 699 } else { 700 warnx("%s stats not available via KVM.", name); 701 return; 702 } 703 704 printf("%s:\n", name); 705 706 #define p(f, m) if (igmpstat[f] || sflag <= 1) \ 707 printf(m, igmpstat[f], plural(igmpstat[f])) 708 #define py(f, m) if (igmpstat[f] || sflag <= 1) \ 709 printf(m, igmpstat[f], igmpstat[f] != 1 ? "ies" : "y") 710 p(IGMP_STAT_RCV_TOTAL, "\t%" PRIu64 " message%s received\n"); 711 p(IGMP_STAT_RCV_TOOSHORT, "\t%" PRIu64 " message%s received with too few bytes\n"); 712 p(IGMP_STAT_RCV_BADSUM, "\t%" PRIu64 " message%s received with bad checksum\n"); 713 py(IGMP_STAT_RCV_QUERIES, "\t%" PRIu64 " membership quer%s received\n"); 714 py(IGMP_STAT_RCV_BADQUERIES, "\t%" PRIu64 " membership quer%s received with invalid field(s)\n"); 715 p(IGMP_STAT_RCV_REPORTS, "\t%" PRIu64 " membership report%s received\n"); 716 p(IGMP_STAT_RCV_BADREPORTS, "\t%" PRIu64 " membership report%s received with invalid field(s)\n"); 717 p(IGMP_STAT_RCV_OURREPORTS, "\t%" PRIu64 " membership report%s received for groups to which we belong\n"); 718 p(IGMP_STAT_SND_REPORTS, "\t%" PRIu64 " membership report%s sent\n"); 719 #undef p 720 #undef py 721 } 722 723 /* 724 * Dump CARP statistics structure. 725 */ 726 void 727 carp_stats(u_long off, const char *name) 728 { 729 uint64_t carpstat[CARP_NSTATS]; 730 731 if (use_sysctl) { 732 size_t size = sizeof(carpstat); 733 734 if (sysctlbyname("net.inet.carp.stats", carpstat, &size, 735 NULL, 0) == -1) 736 return; 737 } else { 738 warnx("%s stats not available via KVM.", name); 739 return; 740 } 741 742 printf("%s:\n", name); 743 744 #define p(f, m) if (carpstat[f] || sflag <= 1) \ 745 printf(m, carpstat[f], plural(carpstat[f])) 746 #define p2(f, m) if (carpstat[f] || sflag <= 1) \ 747 printf(m, carpstat[f]) 748 749 p(CARP_STAT_IPACKETS, "\t%" PRIu64 " packet%s received (IPv4)\n"); 750 p(CARP_STAT_IPACKETS6, "\t%" PRIu64 " packet%s received (IPv6)\n"); 751 p(CARP_STAT_BADIF, 752 "\t\t%" PRIu64 " packet%s discarded for bad interface\n"); 753 p(CARP_STAT_BADTTL, 754 "\t\t%" PRIu64 " packet%s discarded for wrong TTL\n"); 755 p(CARP_STAT_HDROPS, "\t\t%" PRIu64 " packet%s shorter than header\n"); 756 p(CARP_STAT_BADSUM, "\t\t%" PRIu64 757 " packet%s discarded for bad checksum\n"); 758 p(CARP_STAT_BADVER, 759 "\t\t%" PRIu64 " packet%s discarded with a bad version\n"); 760 p2(CARP_STAT_BADLEN, 761 "\t\t%" PRIu64 " discarded because packet was too short\n"); 762 p(CARP_STAT_BADAUTH, 763 "\t\t%" PRIu64 " packet%s discarded for bad authentication\n"); 764 p(CARP_STAT_BADVHID, "\t\t%" PRIu64 " packet%s discarded for bad vhid\n"); 765 p(CARP_STAT_BADADDRS, "\t\t%" PRIu64 766 " packet%s discarded because of a bad address list\n"); 767 p(CARP_STAT_OPACKETS, "\t%" PRIu64 " packet%s sent (IPv4)\n"); 768 p(CARP_STAT_OPACKETS6, "\t%" PRIu64 " packet%s sent (IPv6)\n"); 769 p2(CARP_STAT_ONOMEM, 770 "\t\t%" PRIu64 " send failed due to mbuf memory error\n"); 771 #undef p 772 #undef p2 773 } 774 775 /* 776 * Dump PIM statistics structure. 777 */ 778 void 779 pim_stats(u_long off, const char *name) 780 { 781 struct pimstat pimstat; 782 783 if (off == 0) 784 return; 785 if (kread(off, (char *)&pimstat, sizeof (pimstat)) != 0) { 786 /* XXX: PIM is probably not enabled in the kernel */ 787 return; 788 } 789 790 printf("%s:\n", name); 791 792 #define p(f, m) if (pimstat.f || sflag <= 1) \ 793 printf(m, pimstat.f, plural(pimstat.f)) 794 795 p(pims_rcv_total_msgs, "\t%" PRIu64 " message%s received\n"); 796 p(pims_rcv_total_bytes, "\t%" PRIu64 " byte%s received\n"); 797 p(pims_rcv_tooshort, "\t%" PRIu64 " message%s received with too few bytes\n"); 798 p(pims_rcv_badsum, "\t%" PRIu64 " message%s received with bad checksum\n"); 799 p(pims_rcv_badversion, "\t%" PRIu64 " message%s received with bad version\n"); 800 p(pims_rcv_registers_msgs, "\t%" PRIu64 " data register message%s received\n"); 801 p(pims_rcv_registers_bytes, "\t%" PRIu64 " data register byte%s received\n"); 802 p(pims_rcv_registers_wrongiif, "\t%" PRIu64 " data register message%s received on wrong iif\n"); 803 p(pims_rcv_badregisters, "\t%" PRIu64 " bad register%s received\n"); 804 p(pims_snd_registers_msgs, "\t%" PRIu64 " data register message%s sent\n"); 805 p(pims_snd_registers_bytes, "\t%" PRIu64 " data register byte%s sent\n"); 806 #undef p 807 } 808 809 /* 810 * Dump the ARP statistics structure. 811 */ 812 void 813 arp_stats(u_long off, const char *name) 814 { 815 uint64_t arpstat[ARP_NSTATS]; 816 817 if (use_sysctl) { 818 size_t size = sizeof(arpstat); 819 820 if (sysctlbyname("net.inet.arp.stats", arpstat, &size, 821 NULL, 0) == -1) 822 return; 823 } else { 824 warnx("%s stats not available via KVM.", name); 825 return; 826 } 827 828 printf("%s:\n", name); 829 830 #define ps(f, m) if (arpstat[f] || sflag <= 1) \ 831 printf(m, arpstat[f]) 832 #define p(f, m) if (arpstat[f] || sflag <= 1) \ 833 printf(m, arpstat[f], plural(arpstat[f])) 834 835 p(ARP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 836 p(ARP_STAT_SNDREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 837 p(ARP_STAT_SENDREQUEST, "\t\t%" PRIu64 " request packet%s\n"); 838 839 p(ARP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 840 p(ARP_STAT_RCVREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 841 p(ARP_STAT_RCVREQUEST, "\t\t%" PRIu64 " valid request packet%s\n"); 842 p(ARP_STAT_RCVMCAST, "\t\t%" PRIu64 " broadcast/multicast packet%s\n"); 843 p(ARP_STAT_RCVBADPROTO, "\t\t%" PRIu64 " packet%s with unknown protocol type\n"); 844 p(ARP_STAT_RCVBADLEN, "\t\t%" PRIu64 " packet%s with bad (short) length\n"); 845 p(ARP_STAT_RCVZEROTPA, "\t\t%" PRIu64 " packet%s with null target IP address\n"); 846 p(ARP_STAT_RCVZEROSPA, "\t\t%" PRIu64 " packet%s with null source IP address\n"); 847 ps(ARP_STAT_RCVNOINT, "\t\t%" PRIu64 " could not be mapped to an interface\n"); 848 p(ARP_STAT_RCVLOCALSHA, "\t\t%" PRIu64 " packet%s sourced from a local hardware " 849 "address\n"); 850 p(ARP_STAT_RCVBCASTSHA, "\t\t%" PRIu64 " packet%s with a broadcast " 851 "source hardware address\n"); 852 p(ARP_STAT_RCVLOCALSPA, "\t\t%" PRIu64 " duplicate%s for a local IP address\n"); 853 p(ARP_STAT_RCVOVERPERM, "\t\t%" PRIu64 " attempt%s to overwrite a static entry\n"); 854 p(ARP_STAT_RCVOVERINT, "\t\t%" PRIu64 " packet%s received on wrong interface\n"); 855 p(ARP_STAT_RCVOVER, "\t\t%" PRIu64 " entry%s overwritten\n"); 856 p(ARP_STAT_RCVLENCHG, "\t\t%" PRIu64 " change%s in hardware address length\n"); 857 858 p(ARP_STAT_DFRTOTAL, "\t%" PRIu64 " packet%s deferred pending ARP resolution\n"); 859 ps(ARP_STAT_DFRSENT, "\t\t%" PRIu64 " sent\n"); 860 ps(ARP_STAT_DFRDROPPED, "\t\t%" PRIu64 " dropped\n"); 861 862 p(ARP_STAT_ALLOCFAIL, "\t%" PRIu64 " failure%s to allocate llinfo\n"); 863 864 #undef ps 865 #undef p 866 } 867 868 /* 869 * Pretty print an Internet address (net address + port). 870 * Take numeric_addr and numeric_port into consideration. 871 */ 872 void 873 inetprint(struct in_addr *in, uint16_t port, const char *proto, 874 int port_numeric) 875 { 876 struct servent *sp = 0; 877 char line[80], *cp; 878 size_t space; 879 880 (void)snprintf(line, sizeof line, "%.*s.", 881 (Aflag && !numeric_addr) ? 12 : 16, inetname(in)); 882 cp = strchr(line, '\0'); 883 if (!port_numeric && port) 884 sp = getservbyport((int)port, proto); 885 space = sizeof line - (cp-line); 886 if (sp || port == 0) 887 (void)snprintf(cp, space, "%s", sp ? sp->s_name : "*"); 888 else 889 (void)snprintf(cp, space, "%u", ntohs(port)); 890 (void)printf(" %-*.*s", width, width, line); 891 } 892 893 /* 894 * Construct an Internet address representation. 895 * If numeric_addr has been supplied, give 896 * numeric value, otherwise try for symbolic name. 897 */ 898 char * 899 inetname(struct in_addr *inp) 900 { 901 char *cp; 902 static char line[50]; 903 struct hostent *hp; 904 struct netent *np; 905 static char domain[MAXHOSTNAMELEN + 1]; 906 static int first = 1; 907 908 if (first && !numeric_addr) { 909 first = 0; 910 if (gethostname(domain, sizeof domain) == 0) { 911 domain[sizeof(domain) - 1] = '\0'; 912 if ((cp = strchr(domain, '.'))) 913 (void) strlcpy(domain, cp + 1, sizeof(domain)); 914 else 915 domain[0] = 0; 916 } else 917 domain[0] = 0; 918 } 919 cp = 0; 920 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 921 int net = inet_netof(*inp); 922 int lna = inet_lnaof(*inp); 923 924 if (lna == INADDR_ANY) { 925 np = getnetbyaddr(net, AF_INET); 926 if (np) 927 cp = np->n_name; 928 } 929 if (cp == 0) { 930 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 931 if (hp) { 932 if ((cp = strchr(hp->h_name, '.')) && 933 !strcmp(cp + 1, domain)) 934 *cp = 0; 935 cp = hp->h_name; 936 } 937 } 938 } 939 if (inp->s_addr == INADDR_ANY) 940 strlcpy(line, "*", sizeof line); 941 else if (cp) 942 strlcpy(line, cp, sizeof line); 943 else { 944 inp->s_addr = ntohl(inp->s_addr); 945 #define C(x) ((x) & 0xff) 946 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 947 C(inp->s_addr >> 24), C(inp->s_addr >> 16), 948 C(inp->s_addr >> 8), C(inp->s_addr)); 949 #undef C 950 } 951 return (line); 952 } 953 954 /* 955 * Dump the contents of a TCP PCB. 956 */ 957 void 958 tcp_dump(u_long off, const char *name, u_long pcbaddr) 959 { 960 callout_impl_t *ci; 961 struct tcpcb tcpcb; 962 int i, hardticks; 963 struct kinfo_pcb *pcblist; 964 size_t j, len; 965 966 if (use_sysctl) 967 pcblist = getpcblist_sysctl(name, &len); 968 else 969 pcblist = getpcblist_kmem(off, name, &len); 970 971 for (j = 0; j < len; j++) 972 if (pcblist[j].ki_ppcbaddr == pcbaddr) 973 break; 974 free(pcblist); 975 976 if (j == len) 977 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 978 979 kread(pcbaddr, (char *)&tcpcb, sizeof(tcpcb)); 980 hardticks = get_hardticks(); 981 982 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 983 984 printf("Timers:\n"); 985 for (i = 0; i < TCPT_NTIMERS; i++) { 986 char buf[128]; 987 ci = (callout_impl_t *)&tcpcb.t_timer[i]; 988 snprintb(buf, sizeof(buf), CALLOUT_FMT, ci->c_flags); 989 printf("\t%s\t%s", tcptimers[i], buf); 990 if (ci->c_flags & CALLOUT_PENDING) 991 printf("\t%d\n", ci->c_time - hardticks); 992 else 993 printf("\n"); 994 } 995 printf("\n\n"); 996 997 if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) 998 printf("State: %d", tcpcb.t_state); 999 else 1000 printf("State: %s", tcpstates[tcpcb.t_state]); 1001 printf(", flags 0x%x, inpcb 0x%lx, in6pcb 0x%lx\n\n", tcpcb.t_flags, 1002 (u_long)tcpcb.t_inpcb, (u_long)tcpcb.t_in6pcb); 1003 1004 printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcpcb.t_rxtshift, 1005 tcpcb.t_rxtcur, tcpcb.t_dupacks); 1006 printf("peermss %u, ourmss %u, segsz %u, segqlen %u\n\n", 1007 tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz, tcpcb.t_segqlen); 1008 1009 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1010 tcpcb.snd_una, tcpcb.snd_nxt, tcpcb.snd_up); 1011 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %lu\n\n", 1012 tcpcb.snd_wl1, tcpcb.snd_wl2, tcpcb.iss, tcpcb.snd_wnd); 1013 1014 printf("rcv_wnd %lu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1015 tcpcb.rcv_wnd, tcpcb.rcv_nxt, tcpcb.rcv_up, tcpcb.irs); 1016 1017 printf("rcv_adv %u, snd_max %u, snd_cwnd %lu, snd_ssthresh %lu\n", 1018 tcpcb.rcv_adv, tcpcb.snd_max, tcpcb.snd_cwnd, tcpcb.snd_ssthresh); 1019 1020 printf("rcvtime %u, rtttime %u, rtseq %u, srtt %d, rttvar %d, " 1021 "rttmin %d, max_sndwnd %lu\n\n", tcpcb.t_rcvtime, tcpcb.t_rtttime, 1022 tcpcb.t_rtseq, tcpcb.t_srtt, tcpcb.t_rttvar, tcpcb.t_rttmin, 1023 tcpcb.max_sndwnd); 1024 1025 printf("oobflags %d, iobc %d, softerror %d\n\n", tcpcb.t_oobflags, 1026 tcpcb.t_iobc, tcpcb.t_softerror); 1027 1028 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1029 tcpcb.snd_scale, tcpcb.rcv_scale, tcpcb.request_r_scale, 1030 tcpcb.requested_s_scale); 1031 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1032 tcpcb.ts_recent, tcpcb.ts_recent_age, tcpcb.last_ack_sent); 1033 } 1034
Indexes created Sun Sep 21 20:09:37 GMT 2025