inet.c revision 1.59
1 /* $NetBSD: inet.c,v 1.59 2003/09/04 09:23:38 itojun 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 1.59 2003/09/04 09:23:38 itojun Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <sys/param.h> 42 #include <sys/queue.h> 43 #include <sys/socket.h> 44 #include <sys/socketvar.h> 45 #include <sys/mbuf.h> 46 #include <sys/protosw.h> 47 48 #include <net/if_arp.h> 49 #include <net/route.h> 50 #include <netinet/in.h> 51 #include <netinet/in_systm.h> 52 #include <netinet/ip.h> 53 #include <netinet/in_pcb.h> 54 #include <netinet/ip_icmp.h> 55 56 #ifdef INET6 57 #include <netinet/ip6.h> 58 #endif 59 60 #include <netinet/icmp_var.h> 61 #include <netinet/igmp_var.h> 62 #include <netinet/ip_var.h> 63 #include <netinet/tcp.h> 64 #include <netinet/tcpip.h> 65 #include <netinet/tcp_seq.h> 66 #define TCPSTATES 67 #include <netinet/tcp_fsm.h> 68 #define TCPTIMERS 69 #include <netinet/tcp_timer.h> 70 #include <netinet/tcp_var.h> 71 #include <netinet/tcp_debug.h> 72 #include <netinet/udp.h> 73 #include <netinet/udp_var.h> 74 75 #include <arpa/inet.h> 76 #include <netdb.h> 77 #include <stdio.h> 78 #include <string.h> 79 #include <unistd.h> 80 #include "netstat.h" 81 82 struct inpcb inpcb; 83 struct tcpcb tcpcb; 84 struct socket sockb; 85 86 char *inetname __P((struct in_addr *)); 87 void inetprint __P((struct in_addr *, u_int16_t, const char *, int)); 88 89 /* 90 * Print a summary of connections related to an Internet 91 * protocol. For TCP, also give state of connection. 92 * Listening processes (aflag) are suppressed unless the 93 * -a (all) flag is specified. 94 */ 95 static int width; 96 97 void 98 protopr(off, name) 99 u_long off; 100 char *name; 101 { 102 struct inpcbtable table; 103 struct inpcb *head, *next, *prev; 104 struct inpcb inpcb; 105 int istcp, compact; 106 static int first = 1; 107 static char *shorttcpstates[] = { 108 "CLOSED", "LISTEN", "SYNSEN", "SYSRCV", 109 "ESTABL", "CLWAIT", "FWAIT1", "CLOSNG", 110 "LASTAK", "FWAIT2", "TMWAIT", 111 }; 112 113 if (off == 0) 114 return; 115 istcp = strcmp(name, "tcp") == 0; 116 kread(off, (char *)&table, sizeof table); 117 prev = head = 118 (struct inpcb *)&((struct inpcbtable *)off)->inpt_queue.cqh_first; 119 next = (struct inpcb *)table.inpt_queue.cqh_first; 120 121 compact = 0; 122 if (Aflag) { 123 if (!numeric_addr) 124 width = 18; 125 else { 126 width = 21; 127 compact = 1; 128 } 129 } else 130 width = 22; 131 while (next != head) { 132 kread((u_long)next, (char *)&inpcb, sizeof inpcb); 133 if ((struct inpcb *)inpcb.inp_queue.cqe_prev != prev) { 134 printf("???\n"); 135 break; 136 } 137 prev = next; 138 next = (struct inpcb *)inpcb.inp_queue.cqe_next; 139 140 if (inpcb.inp_af != AF_INET) 141 continue; 142 143 if (!aflag && 144 inet_lnaof(inpcb.inp_laddr) == INADDR_ANY) 145 continue; 146 kread((u_long)inpcb.inp_socket, (char *)&sockb, sizeof (sockb)); 147 if (istcp) { 148 kread((u_long)inpcb.inp_ppcb, 149 (char *)&tcpcb, sizeof (tcpcb)); 150 } 151 if (first) { 152 printf("Active Internet connections"); 153 if (aflag) 154 printf(" (including servers)"); 155 putchar('\n'); 156 if (Aflag) 157 printf("%-8.8s ", "PCB"); 158 printf("%-5.5s %-6.6s %-6.6s %s%-*.*s %-*.*s %s\n", 159 "Proto", "Recv-Q", "Send-Q", 160 compact ? "" : " ", 161 width, width, "Local Address", 162 width, width, "Foreign Address", "State"); 163 first = 0; 164 } 165 if (Aflag) { 166 if (istcp) 167 printf("%8lx ", (u_long) inpcb.inp_ppcb); 168 else 169 printf("%8lx ", (u_long) prev); 170 } 171 printf("%-5.5s %6ld %6ld%s", name, sockb.so_rcv.sb_cc, 172 sockb.so_snd.sb_cc, compact ? "" : " "); 173 if (numeric_port) { 174 inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name, 1); 175 inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name, 1); 176 } else if (inpcb.inp_flags & INP_ANONPORT) { 177 inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name, 1); 178 inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name, 0); 179 } else { 180 inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name, 0); 181 inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name, 0); 182 } 183 if (istcp) { 184 if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) 185 printf(" %d", tcpcb.t_state); 186 else 187 printf(" %s", compact ? 188 shorttcpstates[tcpcb.t_state] : 189 tcpstates[tcpcb.t_state]); 190 } 191 putchar('\n'); 192 } 193 } 194 195 /* 196 * Dump TCP statistics structure. 197 */ 198 void 199 tcp_stats(off, name) 200 u_long off; 201 char *name; 202 { 203 struct tcpstat tcpstat; 204 205 if (off == 0) 206 return; 207 printf ("%s:\n", name); 208 kread(off, (char *)&tcpstat, sizeof (tcpstat)); 209 210 #define ps(f, m) if (tcpstat.f || sflag <= 1) \ 211 printf(m, (unsigned long long)tcpstat.f) 212 #define p(f, m) if (tcpstat.f || sflag <= 1) \ 213 printf(m, (unsigned long long)tcpstat.f, plural(tcpstat.f)) 214 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ 215 printf(m, (unsigned long long)tcpstat.f1, plural(tcpstat.f1), \ 216 (unsigned long long)tcpstat.f2, plural(tcpstat.f2)) 217 #define p2s(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ 218 printf(m, (unsigned long long)tcpstat.f1, plural(tcpstat.f1), \ 219 (unsigned long long)tcpstat.f2) 220 #define p3(f, m) if (tcpstat.f || sflag <= 1) \ 221 printf(m, (unsigned long long)tcpstat.f, plurales(tcpstat.f)) 222 223 p(tcps_sndtotal, "\t%llu packet%s sent\n"); 224 p2(tcps_sndpack,tcps_sndbyte, 225 "\t\t%llu data packet%s (%llu byte%s)\n"); 226 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, 227 "\t\t%llu data packet%s (%llu byte%s) retransmitted\n"); 228 p2s(tcps_sndacks, tcps_delack, 229 "\t\t%llu ack-only packet%s (%llu delayed)\n"); 230 p(tcps_sndurg, "\t\t%llu URG only packet%s\n"); 231 p(tcps_sndprobe, "\t\t%llu window probe packet%s\n"); 232 p(tcps_sndwinup, "\t\t%llu window update packet%s\n"); 233 p(tcps_sndctrl, "\t\t%llu control packet%s\n"); 234 p(tcps_selfquench, 235 "\t\t%llu send attempt%s resulted in self-quench\n"); 236 p(tcps_rcvtotal, "\t%llu packet%s received\n"); 237 p2(tcps_rcvackpack, tcps_rcvackbyte, 238 "\t\t%llu ack%s (for %llu byte%s)\n"); 239 p(tcps_rcvdupack, "\t\t%llu duplicate ack%s\n"); 240 p(tcps_rcvacktoomuch, "\t\t%llu ack%s for unsent data\n"); 241 p2(tcps_rcvpack, tcps_rcvbyte, 242 "\t\t%llu packet%s (%llu byte%s) received in-sequence\n"); 243 p2(tcps_rcvduppack, tcps_rcvdupbyte, 244 "\t\t%llu completely duplicate packet%s (%llu byte%s)\n"); 245 p(tcps_pawsdrop, "\t\t%llu old duplicate packet%s\n"); 246 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, 247 "\t\t%llu packet%s with some dup. data (%llu byte%s duped)\n"); 248 p2(tcps_rcvoopack, tcps_rcvoobyte, 249 "\t\t%llu out-of-order packet%s (%llu byte%s)\n"); 250 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, 251 "\t\t%llu packet%s (%llu byte%s) of data after window\n"); 252 p(tcps_rcvwinprobe, "\t\t%llu window probe%s\n"); 253 p(tcps_rcvwinupd, "\t\t%llu window update packet%s\n"); 254 p(tcps_rcvafterclose, "\t\t%llu packet%s received after close\n"); 255 p(tcps_rcvbadsum, "\t\t%llu discarded for bad checksum%s\n"); 256 p(tcps_rcvbadoff, "\t\t%llu discarded for bad header offset field%s\n"); 257 ps(tcps_rcvshort, "\t\t%llu discarded because packet too short\n"); 258 p(tcps_connattempt, "\t%llu connection request%s\n"); 259 p(tcps_accepts, "\t%llu connection accept%s\n"); 260 p(tcps_connects, 261 "\t%llu connection%s established (including accepts)\n"); 262 p2(tcps_closed, tcps_drops, 263 "\t%llu connection%s closed (including %llu drop%s)\n"); 264 p(tcps_conndrops, "\t%llu embryonic connection%s dropped\n"); 265 p(tcps_delayed_free, "\t%llu delayed free%s of tcpcb\n"); 266 p2(tcps_rttupdated, tcps_segstimed, 267 "\t%llu segment%s updated rtt (of %llu attempt%s)\n"); 268 p(tcps_rexmttimeo, "\t%llu retransmit timeout%s\n"); 269 p(tcps_timeoutdrop, 270 "\t\t%llu connection%s dropped by rexmit timeout\n"); 271 p2(tcps_persisttimeo, tcps_persistdrops, 272 "\t%llu persist timeout%s (resulting in %llu dropped " 273 "connection%s)\n"); 274 p(tcps_keeptimeo, "\t%llu keepalive timeout%s\n"); 275 p(tcps_keepprobe, "\t\t%llu keepalive probe%s sent\n"); 276 p(tcps_keepdrops, "\t\t%llu connection%s dropped by keepalive\n"); 277 p(tcps_predack, "\t%llu correct ACK header prediction%s\n"); 278 p(tcps_preddat, "\t%llu correct data packet header prediction%s\n"); 279 p3(tcps_pcbhashmiss, "\t%llu PCB hash miss%s\n"); 280 ps(tcps_noport, "\t%llu dropped due to no socket\n"); 281 p(tcps_connsdrained, "\t%llu connection%s drained due to memory " 282 "shortage\n"); 283 p(tcps_pmtublackhole, "\t%llu PMTUD blackhole%s detected\n"); 284 285 p(tcps_badsyn, "\t%llu bad connection attempt%s\n"); 286 ps(tcps_sc_added, "\t%llu SYN cache entries added\n"); 287 p(tcps_sc_collisions, "\t\t%llu hash collision%s\n"); 288 ps(tcps_sc_completed, "\t\t%llu completed\n"); 289 ps(tcps_sc_aborted, "\t\t%llu aborted (no space to build PCB)\n"); 290 ps(tcps_sc_timed_out, "\t\t%llu timed out\n"); 291 ps(tcps_sc_overflowed, "\t\t%llu dropped due to overflow\n"); 292 ps(tcps_sc_bucketoverflow, "\t\t%llu dropped due to bucket overflow\n"); 293 ps(tcps_sc_reset, "\t\t%llu dropped due to RST\n"); 294 ps(tcps_sc_unreach, "\t\t%llu dropped due to ICMP unreachable\n"); 295 ps(tcps_sc_delayed_free, "\t\t%llu delayed free of SYN cache " 296 "entries\n"); 297 p(tcps_sc_retransmitted, "\t%llu SYN,ACK%s retransmitted\n"); 298 p(tcps_sc_dupesyn, "\t%llu duplicate SYN%s received for entries " 299 "already in the cache\n"); 300 p(tcps_sc_dropped, "\t%llu SYN%s dropped (no route or no space)\n"); 301 302 #undef p 303 #undef ps 304 #undef p2 305 #undef p2s 306 #undef p3 307 } 308 309 /* 310 * Dump UDP statistics structure. 311 */ 312 void 313 udp_stats(off, name) 314 u_long off; 315 char *name; 316 { 317 struct udpstat udpstat; 318 u_quad_t delivered; 319 320 if (off == 0) 321 return; 322 printf("%s:\n", name); 323 kread(off, (char *)&udpstat, sizeof (udpstat)); 324 325 #define ps(f, m) if (udpstat.f || sflag <= 1) \ 326 printf(m, (unsigned long long)udpstat.f) 327 #define p(f, m) if (udpstat.f || sflag <= 1) \ 328 printf(m, (unsigned long long)udpstat.f, plural(udpstat.f)) 329 #define p3(f, m) if (udpstat.f || sflag <= 1) \ 330 printf(m, (unsigned long long)udpstat.f, plurales(udpstat.f)) 331 332 p(udps_ipackets, "\t%llu datagram%s received\n"); 333 ps(udps_hdrops, "\t%llu with incomplete header\n"); 334 ps(udps_badlen, "\t%llu with bad data length field\n"); 335 ps(udps_badsum, "\t%llu with bad checksum\n"); 336 ps(udps_noport, "\t%llu dropped due to no socket\n"); 337 p(udps_noportbcast, "\t%llu broadcast/multicast datagram%s dropped due to no socket\n"); 338 ps(udps_fullsock, "\t%llu dropped due to full socket buffers\n"); 339 delivered = udpstat.udps_ipackets - 340 udpstat.udps_hdrops - 341 udpstat.udps_badlen - 342 udpstat.udps_badsum - 343 udpstat.udps_noport - 344 udpstat.udps_noportbcast - 345 udpstat.udps_fullsock; 346 if (delivered || sflag <= 1) 347 printf("\t%llu delivered\n", (unsigned long long)delivered); 348 p3(udps_pcbhashmiss, "\t%llu PCB hash miss%s\n"); 349 p(udps_opackets, "\t%llu datagram%s output\n"); 350 351 #undef ps 352 #undef p 353 #undef p3 354 } 355 356 /* 357 * Dump IP statistics structure. 358 */ 359 void 360 ip_stats(off, name) 361 u_long off; 362 char *name; 363 { 364 struct ipstat ipstat; 365 366 if (off == 0) 367 return; 368 kread(off, (char *)&ipstat, sizeof (ipstat)); 369 printf("%s:\n", name); 370 371 #define ps(f, m) if (ipstat.f || sflag <= 1) \ 372 printf(m, (unsigned long long)ipstat.f) 373 #define p(f, m) if (ipstat.f || sflag <= 1) \ 374 printf(m, (unsigned long long)ipstat.f, plural(ipstat.f)) 375 376 p(ips_total, "\t%llu total packet%s received\n"); 377 p(ips_badsum, "\t%llu bad header checksum%s\n"); 378 ps(ips_toosmall, "\t%llu with size smaller than minimum\n"); 379 ps(ips_tooshort, "\t%llu with data size < data length\n"); 380 ps(ips_toolong, "\t%llu with length > max ip packet size\n"); 381 ps(ips_badhlen, "\t%llu with header length < data size\n"); 382 ps(ips_badlen, "\t%llu with data length < header length\n"); 383 ps(ips_badoptions, "\t%llu with bad options\n"); 384 ps(ips_badvers, "\t%llu with incorrect version number\n"); 385 p(ips_fragments, "\t%llu fragment%s received\n"); 386 p(ips_fragdropped, "\t%llu fragment%s dropped (dup or out of space)\n"); 387 p(ips_badfrags, "\t%llu malformed fragment%s dropped\n"); 388 p(ips_fragtimeout, "\t%llu fragment%s dropped after timeout\n"); 389 p(ips_reassembled, "\t%llu packet%s reassembled ok\n"); 390 p(ips_delivered, "\t%llu packet%s for this host\n"); 391 p(ips_noproto, "\t%llu packet%s for unknown/unsupported protocol\n"); 392 p(ips_forward, "\t%llu packet%s forwarded"); 393 p(ips_fastforward, " (%llu packet%s fast forwarded)"); 394 if (ipstat.ips_forward || sflag <= 1) 395 putchar('\n'); 396 p(ips_cantforward, "\t%llu packet%s not forwardable\n"); 397 p(ips_redirectsent, "\t%llu redirect%s sent\n"); 398 p(ips_localout, "\t%llu packet%s sent from this host\n"); 399 p(ips_rawout, "\t%llu packet%s sent with fabricated ip header\n"); 400 p(ips_odropped, "\t%llu output packet%s dropped due to no bufs, etc.\n"); 401 p(ips_noroute, "\t%llu output packet%s discarded due to no route\n"); 402 p(ips_fragmented, "\t%llu output datagram%s fragmented\n"); 403 p(ips_ofragments, "\t%llu fragment%s created\n"); 404 p(ips_cantfrag, "\t%llu datagram%s that can't be fragmented\n"); 405 p(ips_badaddr, "\t%llu datagram%s with bad address in header\n"); 406 #undef ps 407 #undef p 408 } 409 410 static char *icmpnames[] = { 411 "echo reply", 412 "#1", 413 "#2", 414 "destination unreachable", 415 "source quench", 416 "routing redirect", 417 "alternate host address", 418 "#7", 419 "echo", 420 "router advertisement", 421 "router solicitation", 422 "time exceeded", 423 "parameter problem", 424 "time stamp", 425 "time stamp reply", 426 "information request", 427 "information request reply", 428 "address mask request", 429 "address mask reply", 430 }; 431 432 /* 433 * Dump ICMP statistics. 434 */ 435 void 436 icmp_stats(off, name) 437 u_long off; 438 char *name; 439 { 440 struct icmpstat icmpstat; 441 int i, first; 442 443 if (off == 0) 444 return; 445 kread(off, (char *)&icmpstat, sizeof (icmpstat)); 446 printf("%s:\n", name); 447 448 #define p(f, m) if (icmpstat.f || sflag <= 1) \ 449 printf(m, (unsigned long long)icmpstat.f, plural(icmpstat.f)) 450 451 p(icps_error, "\t%llu call%s to icmp_error\n"); 452 p(icps_oldicmp, 453 "\t%llu error%s not generated because old message was icmp\n"); 454 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 455 if (icmpstat.icps_outhist[i] != 0) { 456 if (first) { 457 printf("\tOutput histogram:\n"); 458 first = 0; 459 } 460 printf("\t\t%s: %llu\n", icmpnames[i], 461 (unsigned long long)icmpstat.icps_outhist[i]); 462 } 463 p(icps_badcode, "\t%llu message%s with bad code fields\n"); 464 p(icps_tooshort, "\t%llu message%s < minimum length\n"); 465 p(icps_checksum, "\t%llu bad checksum%s\n"); 466 p(icps_badlen, "\t%llu message%s with bad length\n"); 467 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 468 if (icmpstat.icps_inhist[i] != 0) { 469 if (first) { 470 printf("\tInput histogram:\n"); 471 first = 0; 472 } 473 printf("\t\t%s: %llu\n", icmpnames[i], 474 (unsigned long long)icmpstat.icps_inhist[i]); 475 } 476 p(icps_reflect, "\t%llu message response%s generated\n"); 477 p(icps_pmtuchg, "\t%llu path MTU change%s\n"); 478 #undef p 479 } 480 481 /* 482 * Dump IGMP statistics structure. 483 */ 484 void 485 igmp_stats(off, name) 486 u_long off; 487 char *name; 488 { 489 struct igmpstat igmpstat; 490 491 if (off == 0) 492 return; 493 kread(off, (char *)&igmpstat, sizeof (igmpstat)); 494 printf("%s:\n", name); 495 496 #define p(f, m) if (igmpstat.f || sflag <= 1) \ 497 printf(m, (unsigned long long)igmpstat.f, plural(igmpstat.f)) 498 #define py(f, m) if (igmpstat.f || sflag <= 1) \ 499 printf(m, (unsigned long long)igmpstat.f, igmpstat.f != 1 ? "ies" : "y") 500 p(igps_rcv_total, "\t%llu message%s received\n"); 501 p(igps_rcv_tooshort, "\t%llu message%s received with too few bytes\n"); 502 p(igps_rcv_badsum, "\t%llu message%s received with bad checksum\n"); 503 py(igps_rcv_queries, "\t%llu membership quer%s received\n"); 504 py(igps_rcv_badqueries, "\t%llu membership quer%s received with invalid field(s)\n"); 505 p(igps_rcv_reports, "\t%llu membership report%s received\n"); 506 p(igps_rcv_badreports, "\t%llu membership report%s received with invalid field(s)\n"); 507 p(igps_rcv_ourreports, "\t%llu membership report%s received for groups to which we belong\n"); 508 p(igps_snd_reports, "\t%llu membership report%s sent\n"); 509 #undef p 510 #undef py 511 } 512 513 /* 514 * Dump the ARP statistics structure. 515 */ 516 void 517 arp_stats(off, name) 518 u_long off; 519 char *name; 520 { 521 struct arpstat arpstat; 522 523 if (off == 0) 524 return; 525 kread(off, (char *)&arpstat, sizeof (arpstat)); 526 printf("%s:\n", name); 527 528 #define ps(f, m) if (arpstat.f || sflag <= 1) \ 529 printf(m, (unsigned long long)arpstat.f) 530 #define p(f, m) if (arpstat.f || sflag <= 1) \ 531 printf(m, (unsigned long long)arpstat.f, plural(arpstat.f)) 532 533 p(as_sndtotal, "\t%llu packet%s sent\n"); 534 p(as_sndreply, "\t\t%llu reply packet%s\n"); 535 p(as_sndrequest, "\t\t%llu request packet%s\n"); 536 537 p(as_rcvtotal, "\t%llu packet%s received\n"); 538 p(as_rcvreply, "\t\t%llu reply packet%s\n"); 539 p(as_rcvrequest, "\t\t%llu valid request packet%s\n"); 540 p(as_rcvmcast, "\t\t%llu broadcast/multicast packet%s\n"); 541 p(as_rcvbadproto, "\t\t%llu packet%s with unknown protocol type\n"); 542 p(as_rcvbadlen, "\t\t%llu packet%s with bad (short) length\n"); 543 p(as_rcvzerotpa, "\t\t%llu packet%s with null target IP address\n"); 544 p(as_rcvzerospa, "\t\t%llu packet%s with null source IP address\n"); 545 ps(as_rcvnoint, "\t\t%llu could not be mapped to an interface\n"); 546 p(as_rcvlocalsha, "\t\t%llu packet%s sourced from a local hardware " 547 "address\n"); 548 p(as_rcvbcastsha, "\t\t%llu packet%s with a broadcast " 549 "source hardware address\n"); 550 p(as_rcvlocalspa, "\t\t%llu duplicate%s for a local IP address\n"); 551 p(as_rcvoverperm, "\t\t%llu attempt%s to overwrite a static entry\n"); 552 p(as_rcvoverint, "\t\t%llu packet%s received on wrong interface\n"); 553 p(as_rcvover, "\t\t%llu entry%s overwritten\n"); 554 p(as_rcvlenchg, "\t\t%llu change%s in hardware address length\n"); 555 556 p(as_dfrtotal, "\t%llu packet%s deferred pending ARP resolution\n"); 557 ps(as_dfrsent, "\t\t%llu sent\n"); 558 ps(as_dfrdropped, "\t\t%llu dropped\n"); 559 560 p(as_allocfail, "\t%llu failure%s to allocate llinfo\n"); 561 562 #undef ps 563 #undef p 564 } 565 566 /* 567 * Pretty print an Internet address (net address + port). 568 * Take numeric_addr and numeric_port into consideration. 569 */ 570 void 571 inetprint(in, port, proto, numeric_port) 572 struct in_addr *in; 573 u_int16_t port; 574 const char *proto; 575 int numeric_port; 576 { 577 struct servent *sp = 0; 578 char line[80], *cp; 579 size_t space; 580 581 (void)snprintf(line, sizeof line, "%.*s.", 582 (Aflag && !numeric_addr) ? 12 : 16, inetname(in)); 583 cp = strchr(line, '\0'); 584 if (!numeric_port && port) 585 sp = getservbyport((int)port, proto); 586 space = sizeof line - (cp-line); 587 if (sp || port == 0) 588 (void)snprintf(cp, space, "%s", sp ? sp->s_name : "*"); 589 else 590 (void)snprintf(cp, space, "%u", ntohs(port)); 591 (void)printf(" %-*.*s", width, width, line); 592 } 593 594 /* 595 * Construct an Internet address representation. 596 * If numeric_addr has been supplied, give 597 * numeric value, otherwise try for symbolic name. 598 */ 599 char * 600 inetname(inp) 601 struct in_addr *inp; 602 { 603 char *cp; 604 static char line[50]; 605 struct hostent *hp; 606 struct netent *np; 607 static char domain[MAXHOSTNAMELEN + 1]; 608 static int first = 1; 609 610 if (first && !numeric_addr) { 611 first = 0; 612 if (gethostname(domain, sizeof domain) == 0) { 613 domain[sizeof(domain) - 1] = '\0'; 614 if ((cp = strchr(domain, '.'))) 615 (void) strlcpy(domain, cp + 1, sizeof(domain)); 616 else 617 domain[0] = 0; 618 } else 619 domain[0] = 0; 620 } 621 cp = 0; 622 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 623 int net = inet_netof(*inp); 624 int lna = inet_lnaof(*inp); 625 626 if (lna == INADDR_ANY) { 627 np = getnetbyaddr(net, AF_INET); 628 if (np) 629 cp = np->n_name; 630 } 631 if (cp == 0) { 632 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 633 if (hp) { 634 if ((cp = strchr(hp->h_name, '.')) && 635 !strcmp(cp + 1, domain)) 636 *cp = 0; 637 cp = hp->h_name; 638 } 639 } 640 } 641 if (inp->s_addr == INADDR_ANY) 642 strlcpy(line, "*", sizeof line); 643 else if (cp) 644 strlcpy(line, cp, sizeof line); 645 else { 646 inp->s_addr = ntohl(inp->s_addr); 647 #define C(x) ((x) & 0xff) 648 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 649 C(inp->s_addr >> 24), C(inp->s_addr >> 16), 650 C(inp->s_addr >> 8), C(inp->s_addr)); 651 #undef C 652 } 653 return (line); 654 } 655 656 /* 657 * Dump the contents of a TCP PCB. 658 */ 659 void 660 tcp_dump(pcbaddr) 661 u_long pcbaddr; 662 { 663 struct tcpcb tcpcb; 664 int i, hardticks; 665 666 kread(pcbaddr, (char *)&tcpcb, sizeof(tcpcb)); 667 hardticks = get_hardticks(); 668 669 printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr); 670 671 printf("Timers:\n"); 672 for (i = 0; i < TCPT_NTIMERS; i++) { 673 printf("\t%s: %d", tcptimers[i], 674 (tcpcb.t_timer[i].c_flags & CALLOUT_PENDING) ? 675 tcpcb.t_timer[i].c_time - hardticks : 0); 676 } 677 printf("\n\n"); 678 679 if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES) 680 printf("State: %d", tcpcb.t_state); 681 else 682 printf("State: %s", tcpstates[tcpcb.t_state]); 683 printf(", flags 0x%x, inpcb 0x%lx, in6pcb 0x%lx\n\n", tcpcb.t_flags, 684 (u_long)tcpcb.t_inpcb, (u_long)tcpcb.t_in6pcb); 685 686 printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcpcb.t_rxtshift, 687 tcpcb.t_rxtcur, tcpcb.t_dupacks); 688 printf("peermss %u, ourmss %u, segsz %u\n\n", tcpcb.t_peermss, 689 tcpcb.t_ourmss, tcpcb.t_segsz); 690 691 printf("snd_una %u, snd_nxt %u, snd_up %u\n", 692 tcpcb.snd_una, tcpcb.snd_nxt, tcpcb.snd_up); 693 printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %lu\n\n", 694 tcpcb.snd_wl1, tcpcb.snd_wl2, tcpcb.iss, tcpcb.snd_wnd); 695 696 printf("rcv_wnd %lu, rcv_nxt %u, rcv_up %u, irs %u\n\n", 697 tcpcb.rcv_wnd, tcpcb.rcv_nxt, tcpcb.rcv_up, tcpcb.irs); 698 699 printf("rcv_adv %u, snd_max %u, snd_cwnd %lu, snd_ssthresh %lu\n", 700 tcpcb.rcv_adv, tcpcb.snd_max, tcpcb.snd_cwnd, tcpcb.snd_ssthresh); 701 702 printf("rcvtime %u, rtttime %u, rtseq %u, srtt %d, rttvar %d, " 703 "rttmin %d, max_sndwnd %lu\n\n", tcpcb.t_rcvtime, tcpcb.t_rtttime, 704 tcpcb.t_rtseq, tcpcb.t_srtt, tcpcb.t_rttvar, tcpcb.t_rttmin, 705 tcpcb.max_sndwnd); 706 707 printf("oobflags %d, iobc %d, softerror %d\n\n", tcpcb.t_oobflags, 708 tcpcb.t_iobc, tcpcb.t_softerror); 709 710 printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n", 711 tcpcb.snd_scale, tcpcb.rcv_scale, tcpcb.request_r_scale, 712 tcpcb.requested_s_scale); 713 printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n", 714 tcpcb.ts_recent, tcpcb.ts_recent_age, tcpcb.last_ack_sent); 715 } 716
Indexes created Sun Sep 21 20:09:37 GMT 2025