inet.c revision 1.114
1 /* $NetBSD: inet.c,v 1.114 2021/10/30 11:23:07 nia 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 1.114 2021/10/30 11:23:07 nia Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #define _CALLOUT_PRIVATE /* for defs in sys/callout.h */ 42 43 #include <sys/param.h> 44 #include <sys/queue.h> 45 #include <sys/socket.h> 46 #include <sys/socketvar.h> 47 #include <sys/mbuf.h> 48 #include <sys/protosw.h> 49 #include <sys/sysctl.h> 50 51 #include <net/if_arp.h> 52 #include <net/route.h> 53 #include <netinet/in.h> 54 #include <netinet/in_systm.h> 55 #include <netinet/ip.h> 56 #include <netinet/in_pcb.h> 57 #define ICMP_STRINGS 58 #include <netinet/ip_icmp.h> 59 60 #ifdef INET6 61 #include <netinet/ip6.h> 62 #endif 63 64 #include <netinet/icmp_var.h> 65 #include <netinet/igmp_var.h> 66 #include <netinet/ip_var.h> 67 #include <netinet/pim_var.h> 68 #include <netinet/tcp.h> 69 #include <netinet/tcp_seq.h> 70 #define TCPSTATES 71 #include <netinet/tcp_fsm.h> 72 #define TCPTIMERS 73 #include <netinet/tcp_timer.h> 74 #include <netinet/tcp_var.h> 75 #include <netinet/tcp_debug.h> 76 #include <netinet/udp.h> 77 #include <netinet/ip_carp.h> 78 #include <netinet/udp_var.h> 79 #include <netinet/tcp_vtw.h> 80 81 #include <arpa/inet.h> 82 #include <kvm.h> 83 #include <netdb.h> 84 #include <stdio.h> 85 #include <string.h> 86 #include <unistd.h> 87 #include <stdlib.h> 88 #include <err.h> 89 #include <util.h> 90 #include <errno.h> 91 92 #include "netstat.h" 93 #include "vtw.h" 94 #include "prog_ops.h" 95 96 char *inetname(struct in_addr *); 97 void inetprint(struct in_addr *, u_int16_t, const char *, int); 98 99 void print_vtw_v4(const vtw_t *); 100 101 /* 102 * Print a summary of connections related to an Internet 103 * protocol. For TCP, also give state of connection. 104 * Listening processes (aflag) are suppressed unless the 105 * -a (all) flag is specified. 106 */ 107 static int width; 108 static int compact; 109 110 /* VTW-related variables. */ 111 static struct timeval now; 112 113 static void 114 protoprhdr(void) 115 { 116 printf("Active Internet connections"); 117 if (aflag) 118 printf(" (including servers)"); 119 putchar('\n'); 120 if (Aflag) 121 printf("%-8.8s ", "PCB"); 122 printf( 123 Vflag ? "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %-13.13s Expires\n" 124 : "%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %s\n", 125 "Proto", "Recv-Q", "Send-Q", compact ? "" : " ", 126 width, width, "Local Address", 127 width, width, "Foreign Address", 128 "State"); 129 } 130 131 static void 132 protopr0(intptr_t ppcb, u_long rcv_sb_cc, u_long snd_sb_cc, 133 struct in_addr *laddr, u_int16_t lport, 134 struct in_addr *faddr, u_int16_t fport, 135 short t_state, const char *name, int inp_flags, 136 const struct timeval *expires) 137 { 138 static const char *shorttcpstates[] = { 139 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 140 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 141 "LASTAK", "FWAIT2", "TMWAIT", 142 }; 143 int istcp; 144 145 istcp = strcmp(name, "tcp") == 0; 146 147 if (Aflag) { 148 printf("%8" PRIxPTR " ", ppcb); 149 } 150 printf("%-5.5s %6ld %6ld%s", name, rcv_sb_cc, snd_sb_cc, 151 compact ? "" : " "); 152 if (numeric_port) { 153 inetprint(laddr, lport, name, 1); 154 inetprint(faddr, fport, name, 1); 155 } else if (inp_flags & INP_ANONPORT) { 156 inetprint(laddr, lport, name, 1); 157 inetprint(faddr, fport, name, 0); 158 } else { 159 inetprint(laddr, lport, name, 0); 160 inetprint(faddr, fport, name, 0); 161 } 162 if (istcp) { 163 if (t_state < 0 || t_state >= TCP_NSTATES) 164 printf(" %d", t_state); 165 else 166 printf(" %s", compact ? shorttcpstates[t_state] : 167 tcpstates[t_state]); 168 } 169 if (Vflag && expires != NULL) { 170 if (expires->tv_sec == 0 && expires->tv_usec == -1) 171 printf(" reclaimed"); 172 else { 173 struct timeval delta; 174 175 timersub(expires, &now, &delta); 176 printf(" %.3fms", 177 delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 178 } 179 } 180 putchar('\n'); 181 } 182 183 static void 184 dbg_printf(const char *fmt, ...) 185 { 186 return; 187 } 188 189 void 190 print_vtw_v4(const vtw_t *vtw) 191 { 192 const vtw_v4_t *v4 = (const vtw_v4_t *)vtw; 193 struct timeval delta; 194 struct in_addr la, fa; 195 char buf[2][32]; 196 static const struct timeval zero = {.tv_sec = 0, .tv_usec = 0}; 197 198 la.s_addr = v4->laddr; 199 fa.s_addr = v4->faddr; 200 201 snprintf(&buf[0][0], 32, "%s", inet_ntoa(la)); 202 snprintf(&buf[1][0], 32, "%s", inet_ntoa(fa)); 203 204 timersub(&vtw->expire, &now, &delta); 205 206 if (vtw->expire.tv_sec == 0 && vtw->expire.tv_usec == -1) { 207 dbg_printf("%15.15s:%d %15.15s:%d reclaimed\n" 208 ,buf[0], ntohs(v4->lport) 209 ,buf[1], ntohs(v4->fport)); 210 if (!(Vflag && vflag)) 211 return; 212 } else if (vtw->expire.tv_sec == 0) 213 return; 214 else if (timercmp(&delta, &zero, <) && !(Vflag && vflag)) { 215 dbg_printf("%15.15s:%d %15.15s:%d expired\n" 216 ,buf[0], ntohs(v4->lport) 217 ,buf[1], ntohs(v4->fport)); 218 return; 219 } else { 220 dbg_printf("%15.15s:%d %15.15s:%d expires in %.3fms\n" 221 ,buf[0], ntohs(v4->lport) 222 ,buf[1], ntohs(v4->fport) 223 ,delta.tv_sec * 1000.0 + delta.tv_usec / 1000.0); 224 } 225 protopr0(0, 0, 0, 226 &la, v4->lport, 227 &fa, v4->fport, 228 TCPS_TIME_WAIT, "tcp", 0, &vtw->expire); 229 } 230 231 struct kinfo_pcb * 232 getpcblist_sysctl(const char *name, size_t *len) { 233 int mib[8]; 234 size_t namelen = 0, size = 0; 235 char *mibname = NULL; 236 struct kinfo_pcb *pcblist; 237 238 memset(mib, 0, sizeof(mib)); 239 240 if (asprintf(&mibname, "net.inet%s.%s.pcblist", name + 3, name) == -1) 241 err(1, "asprintf"); 242 243 /* get dynamic pcblist node */ 244 if (prog_sysctlnametomib(mibname, mib, &namelen) == -1) { 245 if (errno == ENOENT) { 246 *len = 0; 247 return NULL; 248 } 249 250 err(1, "sysctlnametomib: %s", mibname); 251 } 252 253 free(mibname); 254 255 if (prog_sysctl(mib, __arraycount(mib), NULL, &size, NULL, 0) == -1) 256 err(1, "sysctl (query)"); 257 258 if ((pcblist = malloc(size)) == NULL) 259 err(1, "malloc"); 260 memset(pcblist, 0, size); 261 262 mib[6] = sizeof(*pcblist); 263 mib[7] = size / sizeof(*pcblist); 264 265 if (prog_sysctl(mib, __arraycount(mib), pcblist, &size, NULL, 0) == -1) 266 err(1, "sysctl (copy)"); 267 268 *len = size / sizeof(*pcblist); 269 return pcblist; 270 271 } 272 273 static struct kinfo_pcb * 274 getpcblist_kmem(u_long off, const char *name, size_t *len) { 275 struct inpcbtable table; 276 struct inpcb_hdr *next, *prev; 277 struct inpcb inpcb; 278 struct tcpcb tcpcb; 279 struct socket sockb; 280 int istcp = strcmp(name, "tcp") == 0; 281 struct kinfo_pcb *pcblist; 282 size_t size = 100, i; 283 struct sockaddr_in sin; 284 struct inpcbqueue *head; 285 286 if (off == 0) { 287 *len = 0; 288 return NULL; 289 } 290 291 kread(off, (char *)&table, sizeof table); 292 head = &table.inpt_queue; 293 next = TAILQ_FIRST(head); 294 prev = TAILQ_END(head); 295 296 pcblist = NULL; 297 if (reallocarr(&pcblist, size, sizeof(*pcblist)) != 0) 298 err(1, "reallocarr"); 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 if (reallocarr(&pcblist, size, sizeof(*pcblist)) != 0) 330 err(1, "reallocarr"); 331 } 332 } 333 *len = i; 334 return pcblist; 335 } 336 337 void 338 protopr(u_long off, const char *name) 339 { 340 static int first = 1; 341 struct kinfo_pcb *pcblist; 342 size_t i, len; 343 344 compact = 0; 345 if (Aflag) { 346 if (!numeric_addr) 347 width = 18; 348 else { 349 width = 21; 350 compact = 1; 351 } 352 } else 353 width = 22; 354 355 if (use_sysctl) 356 pcblist = getpcblist_sysctl(name, &len); 357 else 358 pcblist = getpcblist_kmem(off, name, &len); 359 360 for (i = 0; i < len; i++) { 361 struct sockaddr_in src, dst; 362 363 memcpy(&src, &pcblist[i].ki_s, sizeof(src)); 364 memcpy(&dst, &pcblist[i].ki_d, sizeof(dst)); 365 366 if (!aflag && 367 inet_lnaof(dst.sin_addr) == INADDR_ANY) 368 continue; 369 370 if (first) { 371 protoprhdr(); 372 first = 0; 373 } 374 protopr0((intptr_t) pcblist[i].ki_ppcbaddr, 375 pcblist[i].ki_rcvq, pcblist[i].ki_sndq, 376 &src.sin_addr, src.sin_port, 377 &dst.sin_addr, dst.sin_port, 378 pcblist[i].ki_tstate, name, 379 pcblist[i].ki_pflags, NULL); 380 } 381 382 free(pcblist); 383 384 if (strcmp(name, "tcp") == 0) { 385 struct timeval t; 386 timebase(&t); 387 gettimeofday(&now, NULL); 388 timersub(&now, &t, &now); 389 show_vtw_v4(print_vtw_v4); 390 } 391 } 392 393 /* 394 * Dump TCP statistics structure. 395 */ 396 void 397 tcp_stats(u_long off, const char *name) 398 { 399 uint64_t tcpstat[TCP_NSTATS]; 400 401 if (use_sysctl) { 402 size_t size = sizeof(tcpstat); 403 404 if (prog_sysctlbyname("net.inet.tcp.stats", tcpstat, &size, 405 NULL, 0) == -1 && errno != ENOMEM) 406 return; 407 } else { 408 warnx("%s stats not available via KVM.", name); 409 return; 410 } 411 412 printf ("%s:\n", name); 413 414 #define ps(f, m) if (tcpstat[f] || sflag <= 1) \ 415 printf(m, tcpstat[f]) 416 #define p(f, m) if (tcpstat[f] || sflag <= 1) \ 417 printf(m, tcpstat[f], plural(tcpstat[f])) 418 #define p2(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 419 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 420 tcpstat[f2], plural(tcpstat[f2])) 421 #define p2s(f1, f2, m) if (tcpstat[f1] || tcpstat[f2] || sflag <= 1) \ 422 printf(m, tcpstat[f1], plural(tcpstat[f1]), \ 423 tcpstat[f2]) 424 #define p3(f, m) if (tcpstat[f] || sflag <= 1) \ 425 printf(m, tcpstat[f], plurales(tcpstat[f])) 426 427 p(TCP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 428 p2(TCP_STAT_SNDPACK,TCP_STAT_SNDBYTE, 429 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s)\n"); 430 p2(TCP_STAT_SNDREXMITPACK, TCP_STAT_SNDREXMITBYTE, 431 "\t\t%" PRIu64 " data packet%s (%" PRIu64 " byte%s) retransmitted\n"); 432 p2s(TCP_STAT_SNDACKS, TCP_STAT_DELACK, 433 "\t\t%" PRIu64 " ack-only packet%s (%" PRIu64 " delayed)\n"); 434 p(TCP_STAT_SNDURG, "\t\t%" PRIu64 " URG only packet%s\n"); 435 p(TCP_STAT_SNDPROBE, "\t\t%" PRIu64 " window probe packet%s\n"); 436 p(TCP_STAT_SNDWINUP, "\t\t%" PRIu64 " window update packet%s\n"); 437 p(TCP_STAT_SNDCTRL, "\t\t%" PRIu64 " control packet%s\n"); 438 p(TCP_STAT_SELFQUENCH, 439 "\t\t%" PRIu64 " send attempt%s resulted in self-quench\n"); 440 p(TCP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 441 p2(TCP_STAT_RCVACKPACK, TCP_STAT_RCVACKBYTE, 442 "\t\t%" PRIu64 " ack%s (for %" PRIu64 " byte%s)\n"); 443 p(TCP_STAT_RCVDUPACK, "\t\t%" PRIu64 " duplicate ack%s\n"); 444 p(TCP_STAT_RCVACKTOOMUCH, "\t\t%" PRIu64 " ack%s for unsent data\n"); 445 p2(TCP_STAT_RCVPACK, TCP_STAT_RCVBYTE, 446 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) received in-sequence\n"); 447 p2(TCP_STAT_RCVDUPPACK, TCP_STAT_RCVDUPBYTE, 448 "\t\t%" PRIu64 " completely duplicate packet%s (%" PRIu64 " byte%s)\n"); 449 p(TCP_STAT_PAWSDROP, "\t\t%" PRIu64 " old duplicate packet%s\n"); 450 p2(TCP_STAT_RCVPARTDUPPACK, TCP_STAT_RCVPARTDUPBYTE, 451 "\t\t%" PRIu64 " packet%s with some dup. data (%" PRIu64 " byte%s duped)\n"); 452 p2(TCP_STAT_RCVOOPACK, TCP_STAT_RCVOOBYTE, 453 "\t\t%" PRIu64 " out-of-order packet%s (%" PRIu64 " byte%s)\n"); 454 p2(TCP_STAT_RCVPACKAFTERWIN, TCP_STAT_RCVBYTEAFTERWIN, 455 "\t\t%" PRIu64 " packet%s (%" PRIu64 " byte%s) of data after window\n"); 456 p(TCP_STAT_RCVWINPROBE, "\t\t%" PRIu64 " window probe%s\n"); 457 p(TCP_STAT_RCVWINUPD, "\t\t%" PRIu64 " window update packet%s\n"); 458 p(TCP_STAT_RCVAFTERCLOSE, "\t\t%" PRIu64 " packet%s received after close\n"); 459 p(TCP_STAT_RCVBADSUM, "\t\t%" PRIu64 " discarded for bad checksum%s\n"); 460 p(TCP_STAT_RCVBADOFF, "\t\t%" PRIu64 " discarded for bad header offset field%s\n"); 461 ps(TCP_STAT_RCVSHORT, "\t\t%" PRIu64 " discarded because packet too short\n"); 462 p(TCP_STAT_CONNATTEMPT, "\t%" PRIu64 " connection request%s\n"); 463 p(TCP_STAT_ACCEPTS, "\t%" PRIu64 " connection accept%s\n"); 464 p(TCP_STAT_CONNECTS, 465 "\t%" PRIu64 " connection%s established (including accepts)\n"); 466 p2(TCP_STAT_CLOSED, TCP_STAT_DROPS, 467 "\t%" PRIu64 " connection%s closed (including %" PRIu64 " drop%s)\n"); 468 p(TCP_STAT_CONNDROPS, "\t%" PRIu64 " embryonic connection%s dropped\n"); 469 p(TCP_STAT_DELAYED_FREE, "\t%" PRIu64 " delayed free%s of tcpcb\n"); 470 p2(TCP_STAT_RTTUPDATED, TCP_STAT_SEGSTIMED, 471 "\t%" PRIu64 " segment%s updated rtt (of %" PRIu64 " attempt%s)\n"); 472 p(TCP_STAT_REXMTTIMEO, "\t%" PRIu64 " retransmit timeout%s\n"); 473 p(TCP_STAT_TIMEOUTDROP, 474 "\t\t%" PRIu64 " connection%s dropped by rexmit timeout\n"); 475 p2(TCP_STAT_PERSISTTIMEO, TCP_STAT_PERSISTDROPS, 476 "\t%" PRIu64 " persist timeout%s (resulting in %" PRIu64 " dropped " 477 "connection%s)\n"); 478 p(TCP_STAT_KEEPTIMEO, "\t%" PRIu64 " keepalive timeout%s\n"); 479 p(TCP_STAT_KEEPPROBE, "\t\t%" PRIu64 " keepalive probe%s sent\n"); 480 p(TCP_STAT_KEEPDROPS, "\t\t%" PRIu64 " connection%s dropped by keepalive\n"); 481 p(TCP_STAT_PREDACK, "\t%" PRIu64 " correct ACK header prediction%s\n"); 482 p(TCP_STAT_PREDDAT, "\t%" PRIu64 " correct data packet header prediction%s\n"); 483 p3(TCP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 484 ps(TCP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 485 p(TCP_STAT_CONNSDRAINED, "\t%" PRIu64 " connection%s drained due to memory " 486 "shortage\n"); 487 p(TCP_STAT_PMTUBLACKHOLE, "\t%" PRIu64 " PMTUD blackhole%s detected\n"); 488 489 p(TCP_STAT_BADSYN, "\t%" PRIu64 " bad connection attempt%s\n"); 490 ps(TCP_STAT_SC_ADDED, "\t%" PRIu64 " SYN cache entries added\n"); 491 p(TCP_STAT_SC_COLLISIONS, "\t\t%" PRIu64 " hash collision%s\n"); 492 ps(TCP_STAT_SC_COMPLETED, "\t\t%" PRIu64 " completed\n"); 493 ps(TCP_STAT_SC_ABORTED, "\t\t%" PRIu64 " aborted (no space to build PCB)\n"); 494 ps(TCP_STAT_SC_TIMED_OUT, "\t\t%" PRIu64 " timed out\n"); 495 ps(TCP_STAT_SC_OVERFLOWED, "\t\t%" PRIu64 " dropped due to overflow\n"); 496 ps(TCP_STAT_SC_BUCKETOVERFLOW, "\t\t%" PRIu64 " dropped due to bucket overflow\n"); 497 ps(TCP_STAT_SC_RESET, "\t\t%" PRIu64 " dropped due to RST\n"); 498 ps(TCP_STAT_SC_UNREACH, "\t\t%" PRIu64 " dropped due to ICMP unreachable\n"); 499 ps(TCP_STAT_SC_DELAYED_FREE, "\t\t%" PRIu64 " delayed free of SYN cache " 500 "entries\n"); 501 p(TCP_STAT_SC_RETRANSMITTED, "\t%" PRIu64 " SYN,ACK%s retransmitted\n"); 502 p(TCP_STAT_SC_DUPESYN, "\t%" PRIu64 " duplicate SYN%s received for entries " 503 "already in the cache\n"); 504 p(TCP_STAT_SC_DROPPED, "\t%" PRIu64 " SYN%s dropped (no route or no space)\n"); 505 p(TCP_STAT_BADSIG, "\t%" PRIu64 " packet%s with bad signature\n"); 506 p(TCP_STAT_GOODSIG, "\t%" PRIu64 " packet%s with good signature\n"); 507 508 p(TCP_STAT_ECN_SHS, "\t%" PRIu64 " successful ECN handshake%s\n"); 509 p(TCP_STAT_ECN_CE, "\t%" PRIu64 " packet%s with ECN CE bit\n"); 510 p(TCP_STAT_ECN_ECT, "\t%" PRIu64 " packet%s ECN ECT(0) bit\n"); 511 #undef p 512 #undef ps 513 #undef p2 514 #undef p2s 515 #undef p3 516 show_vtw_stats(); 517 } 518 519 /* 520 * Dump UDP statistics structure. 521 */ 522 void 523 udp_stats(u_long off, const char *name) 524 { 525 uint64_t udpstat[UDP_NSTATS]; 526 u_quad_t delivered; 527 528 if (use_sysctl) { 529 size_t size = sizeof(udpstat); 530 531 if (prog_sysctlbyname("net.inet.udp.stats", udpstat, &size, 532 NULL, 0) == -1 && errno != ENOMEM) 533 return; 534 } else { 535 warnx("%s stats not available via KVM.", name); 536 return; 537 } 538 539 printf ("%s:\n", name); 540 541 #define ps(f, m) if (udpstat[f] || sflag <= 1) \ 542 printf(m, udpstat[f]) 543 #define p(f, m) if (udpstat[f] || sflag <= 1) \ 544 printf(m, udpstat[f], plural(udpstat[f])) 545 #define p3(f, m) if (udpstat[f] || sflag <= 1) \ 546 printf(m, udpstat[f], plurales(udpstat[f])) 547 548 p(UDP_STAT_IPACKETS, "\t%" PRIu64 " datagram%s received\n"); 549 ps(UDP_STAT_HDROPS, "\t%" PRIu64 " with incomplete header\n"); 550 ps(UDP_STAT_BADLEN, "\t%" PRIu64 " with bad data length field\n"); 551 ps(UDP_STAT_BADSUM, "\t%" PRIu64 " with bad checksum\n"); 552 ps(UDP_STAT_NOPORT, "\t%" PRIu64 " dropped due to no socket\n"); 553 p(UDP_STAT_NOPORTBCAST, 554 "\t%" PRIu64 " broadcast/multicast datagram%s dropped due to no socket\n"); 555 ps(UDP_STAT_FULLSOCK, "\t%" PRIu64 " dropped due to full socket buffers\n"); 556 delivered = udpstat[UDP_STAT_IPACKETS] - 557 udpstat[UDP_STAT_HDROPS] - 558 udpstat[UDP_STAT_BADLEN] - 559 udpstat[UDP_STAT_BADSUM] - 560 udpstat[UDP_STAT_NOPORT] - 561 udpstat[UDP_STAT_NOPORTBCAST] - 562 udpstat[UDP_STAT_FULLSOCK]; 563 if (delivered || sflag <= 1) 564 printf("\t%" PRIu64 " delivered\n", delivered); 565 p3(UDP_STAT_PCBHASHMISS, "\t%" PRIu64 " PCB hash miss%s\n"); 566 p(UDP_STAT_OPACKETS, "\t%" PRIu64 " datagram%s output\n"); 567 568 #undef ps 569 #undef p 570 #undef p3 571 } 572 573 /* 574 * Dump IP statistics structure. 575 */ 576 void 577 ip_stats(u_long off, const char *name) 578 { 579 uint64_t ipstat[IP_NSTATS]; 580 581 if (use_sysctl) { 582 size_t size = sizeof(ipstat); 583 584 if (prog_sysctlbyname("net.inet.ip.stats", ipstat, &size, 585 NULL, 0) == -1 && errno != ENOMEM) 586 return; 587 } else { 588 warnx("%s stats not available via KVM.", name); 589 return; 590 } 591 592 printf("%s:\n", name); 593 594 #define ps(f, m) if (ipstat[f] || sflag <= 1) \ 595 printf(m, ipstat[f]) 596 #define p(f, m) if (ipstat[f] || sflag <= 1) \ 597 printf(m, ipstat[f], plural(ipstat[f])) 598 599 p(IP_STAT_TOTAL, "\t%" PRIu64 " total packet%s received\n"); 600 p(IP_STAT_BADSUM, "\t%" PRIu64 " bad header checksum%s\n"); 601 ps(IP_STAT_TOOSMALL, "\t%" PRIu64 " with size smaller than minimum\n"); 602 ps(IP_STAT_TOOSHORT, "\t%" PRIu64 " with data size < data length\n"); 603 ps(IP_STAT_TOOLONG, "\t%" PRIu64 " with length > max ip packet size\n"); 604 ps(IP_STAT_BADHLEN, "\t%" PRIu64 " with header length < data size\n"); 605 ps(IP_STAT_BADLEN, "\t%" PRIu64 " with data length < header length\n"); 606 ps(IP_STAT_BADOPTIONS, "\t%" PRIu64 " with bad options\n"); 607 ps(IP_STAT_BADVERS, "\t%" PRIu64 " with incorrect version number\n"); 608 p(IP_STAT_FRAGMENTS, "\t%" PRIu64 " fragment%s received\n"); 609 p(IP_STAT_FRAGDROPPED, "\t%" PRIu64 " fragment%s dropped (dup or out of space)\n"); 610 p(IP_STAT_RCVMEMDROP, "\t%" PRIu64 " fragment%s dropped (out of ipqent)\n"); 611 p(IP_STAT_BADFRAGS, "\t%" PRIu64 " malformed fragment%s dropped\n"); 612 p(IP_STAT_FRAGTIMEOUT, "\t%" PRIu64 " fragment%s dropped after timeout\n"); 613 p(IP_STAT_REASSEMBLED, "\t%" PRIu64 " packet%s reassembled ok\n"); 614 p(IP_STAT_DELIVERED, "\t%" PRIu64 " packet%s for this host\n"); 615 p(IP_STAT_NOPROTO, "\t%" PRIu64 " packet%s for unknown/unsupported protocol\n"); 616 p(IP_STAT_FORWARD, "\t%" PRIu64 " packet%s forwarded"); 617 p(IP_STAT_FASTFORWARD, " (%" PRIu64 " packet%s fast forwarded)"); 618 if (ipstat[IP_STAT_FORWARD] || sflag <= 1) 619 putchar('\n'); 620 p(IP_STAT_CANTFORWARD, "\t%" PRIu64 " packet%s not forwardable\n"); 621 p(IP_STAT_REDIRECTSENT, "\t%" PRIu64 " redirect%s sent\n"); 622 p(IP_STAT_NOGIF, "\t%" PRIu64 " packet%s no matching gif found\n"); 623 p(IP_STAT_NOIPSEC, "\t%" PRIu64 " packet%s no matching ipsecif found\n"); 624 p(IP_STAT_LOCALOUT, "\t%" PRIu64 " packet%s sent from this host\n"); 625 p(IP_STAT_RAWOUT, "\t%" PRIu64 " packet%s sent with fabricated ip header\n"); 626 p(IP_STAT_ODROPPED, "\t%" PRIu64 " output packet%s dropped due to no bufs, etc.\n"); 627 p(IP_STAT_NOROUTE, "\t%" PRIu64 " output packet%s discarded due to no route\n"); 628 p(IP_STAT_FRAGMENTED, "\t%" PRIu64 " output datagram%s fragmented\n"); 629 p(IP_STAT_OFRAGMENTS, "\t%" PRIu64 " fragment%s created\n"); 630 p(IP_STAT_CANTFRAG, "\t%" PRIu64 " datagram%s that can't be fragmented\n"); 631 p(IP_STAT_BADADDR, "\t%" PRIu64 " datagram%s with bad address in header\n"); 632 p(IP_STAT_PFILDROP_IN, "\t%" PRIu64 " input packet%s dropped by pfil\n"); 633 p(IP_STAT_PFILDROP_OUT, "\t%" PRIu64 " output packet%s dropped by pfil\n"); 634 p(IP_STAT_IPSECDROP_IN, "\t%" PRIu64 " input packet%s dropped by IPsec\n"); 635 p(IP_STAT_IPSECDROP_OUT, "\t%" PRIu64 " output packet%s dropped by IPsec\n"); 636 p(IP_STAT_IFDROP, "\t%" PRIu64 " input packet%s dropped due to interface state\n"); 637 p(IP_STAT_TIMXCEED, "\t%" PRIu64 " packet%s dropped due to TTL exceeded\n"); 638 p(IP_STAT_IFNOADDR, "\t%" PRIu64 " output packet%s dropped (no IP address)\n"); 639 p(IP_STAT_RTREJECT, "\t%" PRIu64 " output packet%s discarded due to reject route\n"); 640 p(IP_STAT_BCASTDENIED, "\t%" PRIu64 " output packet%s dropped (broadcast prohibited)\n"); 641 #undef ps 642 #undef p 643 } 644 645 /* 646 * Dump ICMP statistics. 647 */ 648 void 649 icmp_stats(u_long off, const char *name) 650 { 651 uint64_t icmpstat[ICMP_NSTATS]; 652 int i, first; 653 654 if (use_sysctl) { 655 size_t size = sizeof(icmpstat); 656 657 if (prog_sysctlbyname("net.inet.icmp.stats", icmpstat, &size, 658 NULL, 0) == -1 && errno != ENOMEM) 659 return; 660 } else { 661 warnx("%s stats not available via KVM.", name); 662 return; 663 } 664 665 printf("%s:\n", name); 666 667 #define p(f, m) if (icmpstat[f] || sflag <= 1) \ 668 printf(m, icmpstat[f], plural(icmpstat[f])) 669 670 p(ICMP_STAT_ERROR, "\t%" PRIu64 " call%s to icmp_error\n"); 671 p(ICMP_STAT_OLDICMP, 672 "\t%" PRIu64 " error%s not generated because old message was icmp\n"); 673 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 674 if (icmpstat[ICMP_STAT_OUTHIST + i] != 0) { 675 if (first) { 676 printf("\tOutput histogram:\n"); 677 first = 0; 678 } 679 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 680 icmpstat[ICMP_STAT_OUTHIST + i]); 681 } 682 p(ICMP_STAT_BADCODE, "\t%" PRIu64 " message%s with bad code fields\n"); 683 p(ICMP_STAT_TOOSHORT, "\t%" PRIu64 " message%s < minimum length\n"); 684 p(ICMP_STAT_CHECKSUM, "\t%" PRIu64 " bad checksum%s\n"); 685 p(ICMP_STAT_BADLEN, "\t%" PRIu64 " message%s with bad length\n"); 686 p(ICMP_STAT_BMCASTECHO, "\t%" PRIu64 " multicast echo request%s ignored\n"); 687 p(ICMP_STAT_BMCASTTSTAMP, "\t%" PRIu64 " multicast timestamp request%s ignored\n"); 688 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 689 if (icmpstat[ICMP_STAT_INHIST + i] != 0) { 690 if (first) { 691 printf("\tInput histogram:\n"); 692 first = 0; 693 } 694 printf("\t\t%s: %" PRIu64 "\n", icmp_type[i], 695 icmpstat[ICMP_STAT_INHIST + i]); 696 } 697 p(ICMP_STAT_REFLECT, "\t%" PRIu64 " message response%s generated\n"); 698 p(ICMP_STAT_PMTUCHG, "\t%" PRIu64 " path MTU change%s\n"); 699 #undef p 700 } 701 702 /* 703 * Dump IGMP statistics structure. 704 */ 705 void 706 igmp_stats(u_long off, const char *name) 707 { 708 uint64_t igmpstat[IGMP_NSTATS]; 709 710 if (use_sysctl) { 711 size_t size = sizeof(igmpstat); 712 713 if (prog_sysctlbyname("net.inet.igmp.stats", igmpstat, &size, 714 NULL, 0) == -1 && errno != ENOMEM) 715 return; 716 } else { 717 warnx("%s stats not available via KVM.", name); 718 return; 719 } 720 721 printf("%s:\n", name); 722 723 #define p(f, m) if (igmpstat[f] || sflag <= 1) \ 724 printf(m, igmpstat[f], plural(igmpstat[f])) 725 #define py(f, m) if (igmpstat[f] || sflag <= 1) \ 726 printf(m, igmpstat[f], igmpstat[f] != 1 ? "ies" : "y") 727 p(IGMP_STAT_RCV_TOTAL, "\t%" PRIu64 " message%s received\n"); 728 p(IGMP_STAT_RCV_TOOSHORT, "\t%" PRIu64 " message%s received with too few bytes\n"); 729 p(IGMP_STAT_RCV_BADSUM, "\t%" PRIu64 " message%s received with bad checksum\n"); 730 py(IGMP_STAT_RCV_QUERIES, "\t%" PRIu64 " membership quer%s received\n"); 731 py(IGMP_STAT_RCV_BADQUERIES, "\t%" PRIu64 " membership quer%s received with invalid field(s)\n"); 732 p(IGMP_STAT_RCV_REPORTS, "\t%" PRIu64 " membership report%s received\n"); 733 p(IGMP_STAT_RCV_BADREPORTS, "\t%" PRIu64 " membership report%s received with invalid field(s)\n"); 734 p(IGMP_STAT_RCV_OURREPORTS, "\t%" PRIu64 " membership report%s received for groups to which we belong\n"); 735 p(IGMP_STAT_SND_REPORTS, "\t%" PRIu64 " membership report%s sent\n"); 736 #undef p 737 #undef py 738 } 739 740 /* 741 * Dump CARP statistics structure. 742 */ 743 void 744 carp_stats(u_long off, const char *name) 745 { 746 uint64_t carpstat[CARP_NSTATS]; 747 748 if (use_sysctl) { 749 size_t size = sizeof(carpstat); 750 751 if (prog_sysctlbyname("net.inet.carp.stats", carpstat, &size, 752 NULL, 0) == -1 && errno != ENOMEM) 753 return; 754 } else { 755 warnx("%s stats not available via KVM.", name); 756 return; 757 } 758 759 printf("%s:\n", name); 760 761 #define p(f, m) if (carpstat[f] || sflag <= 1) \ 762 printf(m, carpstat[f], plural(carpstat[f])) 763 #define p2(f, m) if (carpstat[f] || sflag <= 1) \ 764 printf(m, carpstat[f]) 765 766 p(CARP_STAT_IPACKETS, "\t%" PRIu64 " packet%s received (IPv4)\n"); 767 p(CARP_STAT_IPACKETS6, "\t%" PRIu64 " packet%s received (IPv6)\n"); 768 p(CARP_STAT_BADIF, 769 "\t\t%" PRIu64 " packet%s discarded for bad interface\n"); 770 p(CARP_STAT_BADTTL, 771 "\t\t%" PRIu64 " packet%s discarded for wrong TTL\n"); 772 p(CARP_STAT_HDROPS, "\t\t%" PRIu64 " packet%s shorter than header\n"); 773 p(CARP_STAT_BADSUM, "\t\t%" PRIu64 774 " packet%s discarded for bad checksum\n"); 775 p(CARP_STAT_BADVER, 776 "\t\t%" PRIu64 " packet%s discarded with a bad version\n"); 777 p2(CARP_STAT_BADLEN, 778 "\t\t%" PRIu64 " discarded because packet was too short\n"); 779 p(CARP_STAT_BADAUTH, 780 "\t\t%" PRIu64 " packet%s discarded for bad authentication\n"); 781 p(CARP_STAT_BADVHID, "\t\t%" PRIu64 " packet%s discarded for bad vhid\n"); 782 p(CARP_STAT_BADADDRS, "\t\t%" PRIu64 783 " packet%s discarded because of a bad address list\n"); 784 p(CARP_STAT_OPACKETS, "\t%" PRIu64 " packet%s sent (IPv4)\n"); 785 p(CARP_STAT_OPACKETS6, "\t%" PRIu64 " packet%s sent (IPv6)\n"); 786 p2(CARP_STAT_ONOMEM, 787 "\t\t%" PRIu64 " send failed due to mbuf memory error\n"); 788 #undef p 789 #undef p2 790 } 791 792 /* 793 * Dump PIM statistics structure. 794 */ 795 void 796 pim_stats(u_long off, const char *name) 797 { 798 struct pimstat pimstat; 799 800 if (off == 0) 801 return; 802 if (kread(off, (char *)&pimstat, sizeof (pimstat)) != 0) { 803 /* XXX: PIM is probably not enabled in the kernel */ 804 return; 805 } 806 807 printf("%s:\n", name); 808 809 #define p(f, m) if (pimstat.f || sflag <= 1) \ 810 printf(m, pimstat.f, plural(pimstat.f)) 811 812 p(pims_rcv_total_msgs, "\t%" PRIu64 " message%s received\n"); 813 p(pims_rcv_total_bytes, "\t%" PRIu64 " byte%s received\n"); 814 p(pims_rcv_tooshort, "\t%" PRIu64 " message%s received with too few bytes\n"); 815 p(pims_rcv_badsum, "\t%" PRIu64 " message%s received with bad checksum\n"); 816 p(pims_rcv_badversion, "\t%" PRIu64 " message%s received with bad version\n"); 817 p(pims_rcv_registers_msgs, "\t%" PRIu64 " data register message%s received\n"); 818 p(pims_rcv_registers_bytes, "\t%" PRIu64 " data register byte%s received\n"); 819 p(pims_rcv_registers_wrongiif, "\t%" PRIu64 " data register message%s received on wrong iif\n"); 820 p(pims_rcv_badregisters, "\t%" PRIu64 " bad register%s received\n"); 821 p(pims_snd_registers_msgs, "\t%" PRIu64 " data register message%s sent\n"); 822 p(pims_snd_registers_bytes, "\t%" PRIu64 " data register byte%s sent\n"); 823 #undef p 824 } 825 826 /* 827 * Dump the ARP statistics structure. 828 */ 829 void 830 arp_stats(u_long off, const char *name) 831 { 832 uint64_t arpstat[ARP_NSTATS]; 833 834 if (use_sysctl) { 835 size_t size = sizeof(arpstat); 836 837 if (prog_sysctlbyname("net.inet.arp.stats", arpstat, &size, 838 NULL, 0) == -1 && errno != ENOMEM) 839 return; 840 } else { 841 warnx("%s stats not available via KVM.", name); 842 return; 843 } 844 845 printf("%s:\n", name); 846 847 #define ps(f, m) if (arpstat[f] || sflag <= 1) \ 848 printf(m, arpstat[f]) 849 #define p(f, m) if (arpstat[f] || sflag <= 1) \ 850 printf(m, arpstat[f], plural(arpstat[f])) 851 852 p(ARP_STAT_SNDTOTAL, "\t%" PRIu64 " packet%s sent\n"); 853 p(ARP_STAT_SNDREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 854 p(ARP_STAT_SENDREQUEST, "\t\t%" PRIu64 " request packet%s\n"); 855 856 p(ARP_STAT_RCVTOTAL, "\t%" PRIu64 " packet%s received\n"); 857 p(ARP_STAT_RCVREPLY, "\t\t%" PRIu64 " reply packet%s\n"); 858 p(ARP_STAT_RCVREQUEST, "\t\t%" PRIu64 " valid request packet%s\n"); 859 p(ARP_STAT_RCVMCAST, "\t\t%" PRIu64 " broadcast/multicast packet%s\n"); 860 p(ARP_STAT_RCVBADPROTO, "\t\t%" PRIu64 " packet%s with unknown protocol type\n"); 861 p(ARP_STAT_RCVBADLEN, "\t\t%" PRIu64 " packet%s with bad (short) length\n"); 862 p(ARP_STAT_RCVZEROTPA, "\t\t%" PRIu64 " packet%s with null target IP address\n"); 863 p(ARP_STAT_RCVZEROSPA, "\t\t%" PRIu64 " packet%s with null source IP address\n"); 864 ps(ARP_STAT_RCVNOINT, "\t\t%" PRIu64 " could not be mapped to an interface\n"); 865 p(ARP_STAT_RCVLOCALSHA, "\t\t%" PRIu64 " packet%s sourced from a local hardware " 866 "address\n"); 867 p(ARP_STAT_RCVBCASTSHA, "\t\t%" PRIu64 " packet%s with a broadcast " 868 "source hardware address\n"); 869 p(ARP_STAT_RCVLOCALSPA, "\t\t%" PRIu64 " duplicate%s for a local IP address\n"); 870 p(ARP_STAT_RCVOVERPERM, "\t\t%" PRIu64 " attempt%s to overwrite a static entry\n"); 871 p(ARP_STAT_RCVOVERINT, "\t\t%" PRIu64 " packet%s received on wrong interface\n"); 872 p(ARP_STAT_RCVOVER, "\t\t%" PRIu64 " entry%s overwritten\n"); 873 p(ARP_STAT_RCVLENCHG, "\t\t%" PRIu64 " change%s in hardware address length\n"); 874 875 p(ARP_STAT_DFRTOTAL, "\t%" PRIu64 " packet%s deferred pending ARP resolution\n"); 876 ps(ARP_STAT_DFRSENT, "\t\t%" PRIu64 " sent\n"); 877 ps(ARP_STAT_DFRDROPPED, "\t\t%" PRIu64 " dropped\n"); 878 879 p(ARP_STAT_ALLOCFAIL, "\t%" PRIu64 " failure%s to allocate llinfo\n"); 880 881 #undef ps 882 #undef p 883 } 884 885 /* 886 * Pretty print an Internet address (net address + port). 887 * Take numeric_addr and numeric_port into consideration. 888 */ 889 void 890 inetprint(struct in_addr *in, uint16_t port, const char *proto, 891 int port_numeric) 892 { 893 struct servent *sp = 0; 894 char line[80], *cp; 895 size_t space; 896 897 (void)snprintf(line, sizeof line, "%.*s.", 898 (Aflag && !numeric_addr) ? 12 : 16, inetname(in)); 899 cp = strchr(line, '\0'); 900 if (!port_numeric && port) 901 sp = getservbyport((int)port, proto); 902 space = sizeof line - (cp-line); 903 if (sp || port == 0) 904 (void)snprintf(cp, space, "%s", sp ? sp->s_name : "*"); 905 else 906 (void)snprintf(cp, space, "%u", ntohs(port)); 907 (void)printf(" %-*.*s", width, width, line); 908 } 909 910 /* 911 * Construct an Internet address representation. 912 * If numeric_addr has been supplied, give 913 * numeric value, otherwise try for symbolic name. 914 */ 915 char * 916 inetname(struct in_addr *inp) 917 { 918 char *cp; 919 static char line[50]; 920 struct hostent *hp; 921 struct netent *np; 922 static char domain[MAXHOSTNAMELEN + 1]; 923 static int first = 1; 924 925 if (first && !numeric_addr) { 926 first = 0; 927 if (gethostname(domain, sizeof domain) == 0) { 928 domain[sizeof(domain) - 1] = '\0'; 929 if ((cp = strchr(domain, '.'))) 930 (void) strlcpy(domain, cp + 1, sizeof(domain)); 931 else 932 domain[0] = 0; 933 } else 934 domain[0] = 0; 935 } 936 cp = 0; 937 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 938 int net = inet_netof(*inp); 939 int lna = inet_lnaof(*inp); 940 941 if (lna == INADDR_ANY) { 942 np = getnetbyaddr(net, AF_INET); 943 if (np) 944 cp = np->n_name; 945 } 946 if (cp == 0) { 947 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 948 if (hp) { 949 if ((cp = strchr(hp->h_name, '.')) && 950 !strcmp(cp + 1, domain)) 951 *cp = 0; 952 cp = hp->h_name; 953 } 954 } 955 } 956 if (inp->s_addr == INADDR_ANY) 957 strlcpy(line, "*", sizeof line); 958 else if (cp) 959 strlcpy(line, cp, sizeof line); 960 else { 961 inp->s_addr = ntohl(inp->s_addr); 962 #define C(x) ((x) & 0xff) 963 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 964 C(inp->s_addr >> 24), C(inp->s_addr >> 16), 965 C(inp->s_addr >> 8), C(inp->s_addr)); 966 #undef C 967 } 968 return (line); 969 } 970 971 /* 972 * Dump the contents of a TCP PCB. 973 */ 974 void 975 tcp_dump(u_long off, const char *name, u_long pcbaddr) 976 { 977 callout_impl_t *ci; 978 struct tcpcb tcpcb; 979 int i, hardticks; 980 struct kinfo_pcb *pcblist; 981 size_t j, len; 982 983 if (use_sysctl) 984 pcblist = getpcblist_sysctl(name, &len); 985 else 986 pcblist = getpcblist_kmem(off, name, &len); 987 988 for (j = 0; j < len; j++) 989 if (pcblist[j].ki_ppcbaddr == pcbaddr) 990 break; 991 free(pcblist); 992 993 if (j == len) 994 errx(1, "0x%lx is not a valid pcb address", pcbaddr); 995 996 kread(pcbaddr, (char *)&tcpcb, sizeof(tcpcb)); 997 hardticks = get_hardticks(); 998 999 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 1000 1001 printf("Timers:\n"); 1002 for (i = 0; i < TCPT_NTIMERS; i++) { 1003 char buf[128]; 1004 ci = (callout_impl_t *)&tcpcb.t_timer[i]; 1005 snprintb(buf, sizeof(buf), CALLOUT_FMT, ci->c_flags); 1006 printf("\t%s\t%s", tcptimers[i], buf); 1007 if (ci->c_flags & CALLOUT_PENDING) 1008 printf("\t%d\n", ci->c_time - hardticks); 1009 else 1010 printf("\n"); 1011 } 1012 printf("\n\n"); 1013 1014 if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) 1015 printf("State: %d", tcpcb.t_state); 1016 else 1017 printf("State: %s", tcpstates[tcpcb.t_state]); 1018 printf(", flags 0x%x, inpcb 0x%lx, in6pcb 0x%lx\n\n", tcpcb.t_flags, 1019 (u_long)tcpcb.t_inpcb, (u_long)tcpcb.t_in6pcb); 1020 1021 printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcpcb.t_rxtshift, 1022 tcpcb.t_rxtcur, tcpcb.t_dupacks); 1023 printf("peermss %u, ourmss %u, segsz %u, segqlen %u\n\n", 1024 tcpcb.t_peermss, tcpcb.t_ourmss, tcpcb.t_segsz, tcpcb.t_segqlen); 1025 1026 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 1027 tcpcb.snd_una, tcpcb.snd_nxt, tcpcb.snd_up); 1028 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %lu\n\n", 1029 tcpcb.snd_wl1, tcpcb.snd_wl2, tcpcb.iss, tcpcb.snd_wnd); 1030 1031 printf("rcv_wnd %lu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 1032 tcpcb.rcv_wnd, tcpcb.rcv_nxt, tcpcb.rcv_up, tcpcb.irs); 1033 1034 printf("rcv_adv %u, snd_max %u, snd_cwnd %lu, snd_ssthresh %lu\n", 1035 tcpcb.rcv_adv, tcpcb.snd_max, tcpcb.snd_cwnd, tcpcb.snd_ssthresh); 1036 1037 printf("rcvtime %u, rtttime %u, rtseq %u, srtt %d, rttvar %d, " 1038 "rttmin %d, max_sndwnd %lu\n\n", tcpcb.t_rcvtime, tcpcb.t_rtttime, 1039 tcpcb.t_rtseq, tcpcb.t_srtt, tcpcb.t_rttvar, tcpcb.t_rttmin, 1040 tcpcb.max_sndwnd); 1041 1042 printf("oobflags %d, iobc %d, softerror %d\n\n", tcpcb.t_oobflags, 1043 tcpcb.t_iobc, tcpcb.t_softerror); 1044 1045 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 1046 tcpcb.snd_scale, tcpcb.rcv_scale, tcpcb.request_r_scale, 1047 tcpcb.requested_s_scale); 1048 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 1049 tcpcb.ts_recent, tcpcb.ts_recent_age, tcpcb.last_ack_sent); 1050 } 1051
Indexes created Sun Sep 21 20:09:37 GMT 2025