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inet6.c revision 1.12
      1 /*	$NetBSD: inet6.c,v 1.12 2000/08/13 18:41:38 jhawk Exp $	*/
      2 /*	BSDI inet.c,v 2.3 1995/10/24 02:19:29 prb Exp	*/
      3 
      4 /*
      5  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of the project nor the names of its contributors
     17  *    may be used to endorse or promote products derived from this software
     18  *    without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30  * SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * Copyright (c) 1983, 1988, 1993
     35  *	The Regents of the University of California.  All rights reserved.
     36  *
     37  * Redistribution and use in source and binary forms, with or without
     38  * modification, are permitted provided that the following conditions
     39  * are met:
     40  * 1. Redistributions of source code must retain the above copyright
     41  *    notice, this list of conditions and the following disclaimer.
     42  * 2. Redistributions in binary form must reproduce the above copyright
     43  *    notice, this list of conditions and the following disclaimer in the
     44  *    documentation and/or other materials provided with the distribution.
     45  * 3. All advertising materials mentioning features or use of this software
     46  *    must display the following acknowledgement:
     47  *	This product includes software developed by the University of
     48  *	California, Berkeley and its contributors.
     49  * 4. Neither the name of the University nor the names of its contributors
     50  *    may be used to endorse or promote products derived from this software
     51  *    without specific prior written permission.
     52  *
     53  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     54  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     55  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     56  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     57  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     58  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     59  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     60  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     61  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     62  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     63  * SUCH DAMAGE.
     64  */
     65 
     66 #include <sys/cdefs.h>
     67 #ifndef lint
     68 #if 0
     69 static char sccsid[] = "@(#)inet.c	8.4 (Berkeley) 4/20/94";
     70 #else
     71 __RCSID("$NetBSD: inet6.c,v 1.12 2000/08/13 18:41:38 jhawk Exp $");
     72 #endif
     73 #endif /* not lint */
     74 
     75 #include <sys/param.h>
     76 #include <sys/socket.h>
     77 #include <sys/socketvar.h>
     78 #include <sys/ioctl.h>
     79 #include <sys/mbuf.h>
     80 #include <sys/protosw.h>
     81 
     82 #include <net/route.h>
     83 #include <net/if.h>
     84 #include <netinet/in.h>
     85 #include <netinet/ip6.h>
     86 #include <netinet/icmp6.h>
     87 #include <netinet/in_systm.h>
     88 #ifndef TCP6
     89 #include <netinet/ip.h>
     90 #include <netinet/ip_var.h>
     91 #endif
     92 #include <netinet6/ip6_var.h>
     93 #include <netinet6/in6_pcb.h>
     94 #include <netinet6/in6_var.h>
     95 #include <netinet6/ip6_var.h>
     96 #ifdef TCP6
     97 #include <netinet6/tcp6.h>
     98 #include <netinet6/tcp6_seq.h>
     99 #define TCP6STATES
    100 #include <netinet6/tcp6_fsm.h>
    101 #define TCP6TIMERS
    102 #include <netinet6/tcp6_timer.h>
    103 #include <netinet6/tcp6_var.h>
    104 #include <netinet6/tcp6_debug.h>
    105 #else
    106 #include <netinet/tcp.h>
    107 #include <netinet/tcpip.h>
    108 #include <netinet/tcp_seq.h>
    109 /*#define TCPSTATES*/
    110 #include <netinet/tcp_fsm.h>
    111 extern char *tcpstates[];
    112 /*#define	TCPTIMERS*/
    113 #include <netinet/tcp_timer.h>
    114 #include <netinet/tcp_var.h>
    115 #include <netinet/tcp_debug.h>
    116 #endif /*TCP6*/
    117 #include <netinet6/udp6.h>
    118 #include <netinet6/udp6_var.h>
    119 #include <netinet6/pim6_var.h>
    120 
    121 #include <arpa/inet.h>
    122 #if 0
    123 #include "gethostbyname2.h"
    124 #endif
    125 #include <netdb.h>
    126 
    127 #include <stdio.h>
    128 #include <string.h>
    129 #include <unistd.h>
    130 #include "netstat.h"
    131 
    132 #ifdef INET6
    133 
    134 struct	in6pcb in6pcb;
    135 #ifdef TCP6
    136 struct	tcp6cb tcp6cb;
    137 #else
    138 struct	tcpcb tcpcb;
    139 #endif
    140 struct	socket sockb;
    141 
    142 char	*inet6name __P((struct in6_addr *));
    143 void	inet6print __P((struct in6_addr *, int, char *));
    144 
    145 /*
    146  * Print a summary of connections related to an Internet
    147  * protocol.  For TCP, also give state of connection.
    148  * Listening processes (aflag) are suppressed unless the
    149  * -a (all) flag is specified.
    150  */
    151 void
    152 ip6protopr(off, name)
    153 	u_long off;
    154 	char *name;
    155 {
    156 	struct in6pcb cb;
    157 	register struct in6pcb *prev, *next;
    158 	int istcp;
    159 	static int first = 1;
    160 
    161 	if (off == 0)
    162 		return;
    163 	istcp = strcmp(name, "tcp6") == 0;
    164 	kread(off, (char *)&cb, sizeof (struct in6pcb));
    165 	in6pcb = cb;
    166 	prev = (struct in6pcb *)off;
    167 	if (in6pcb.in6p_next == (struct in6pcb *)off)
    168 		return;
    169 	while (in6pcb.in6p_next != (struct in6pcb *)off) {
    170 		next = in6pcb.in6p_next;
    171 		kread((u_long)next, (char *)&in6pcb, sizeof (in6pcb));
    172 		if (in6pcb.in6p_prev != prev) {
    173 			printf("???\n");
    174 			break;
    175 		}
    176 		if (!aflag && IN6_IS_ADDR_UNSPECIFIED(&in6pcb.in6p_laddr)) {
    177 			prev = next;
    178 			continue;
    179 		}
    180 		kread((u_long)in6pcb.in6p_socket, (char *)&sockb, sizeof (sockb));
    181 		if (istcp) {
    182 #ifdef TCP6
    183 			kread((u_long)in6pcb.in6p_ppcb,
    184 			    (char *)&tcp6cb, sizeof (tcp6cb));
    185 #else
    186 			kread((u_long)in6pcb.in6p_ppcb,
    187 			    (char *)&tcpcb, sizeof (tcpcb));
    188 #endif
    189 		}
    190 		if (first) {
    191 			printf("Active Internet6 connections");
    192 			if (aflag)
    193 				printf(" (including servers)");
    194 			putchar('\n');
    195 			if (Aflag)
    196 				printf("%-8.8s ", "PCB");
    197 			printf(Aflag ?
    198 				"%-5.5s %-6.6s %-6.6s  %-18.18s %-18.18s %s\n" :
    199 				"%-5.5s %-6.6s %-6.6s  %-22.22s %-22.22s %s\n",
    200 				"Proto", "Recv-Q", "Send-Q",
    201 				"Local Address", "Foreign Address", "(state)");
    202 			first = 0;
    203 		}
    204 		if (Aflag) {
    205 			if (istcp)
    206 				printf("%8p ", in6pcb.in6p_ppcb);
    207 			else
    208 				printf("%8p ", next);
    209 		}
    210 		printf("%-5.5s %6ld %6ld ", name, sockb.so_rcv.sb_cc,
    211 			sockb.so_snd.sb_cc);
    212 		/* xxx */
    213 		inet6print(&in6pcb.in6p_laddr, (int)in6pcb.in6p_lport, name);
    214 		inet6print(&in6pcb.in6p_faddr, (int)in6pcb.in6p_fport, name);
    215 		if (istcp) {
    216 #ifdef TCP6
    217 			if (tcp6cb.t_state < 0 || tcp6cb.t_state >= TCP6_NSTATES)
    218 				printf(" %d", tcp6cb.t_state);
    219 			else
    220 				printf(" %s", tcp6states[tcp6cb.t_state]);
    221 #else
    222 			if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES)
    223 				printf(" %d", tcpcb.t_state);
    224 			else
    225 				printf(" %s", tcpstates[tcpcb.t_state]);
    226 #endif
    227 		}
    228 		putchar('\n');
    229 		prev = next;
    230 	}
    231 }
    232 
    233 #ifdef TCP6
    234 /*
    235  * Dump TCP6 statistics structure.
    236  */
    237 void
    238 tcp6_stats(off, name)
    239 	u_long off;
    240 	char *name;
    241 {
    242 	struct tcp6stat tcp6stat;
    243 
    244 	if (off == 0)
    245 		return;
    246 	printf ("%s:\n", name);
    247 	kread(off, (char *)&tcp6stat, sizeof (tcp6stat));
    248 
    249 #define	p(f, m) if (tcp6stat.f || sflag <= 1) \
    250     printf(m, tcp6stat.f, plural(tcp6stat.f))
    251 #define	p2(f1, f2, m) if (tcp6stat.f1 || tcp6stat.f2 || sflag <= 1) \
    252     printf(m, tcp6stat.f1, plural(tcp6stat.f1), tcp6stat.f2, plural(tcp6stat.f2))
    253 #define	p3(f, m) if (tcp6stat.f || sflag <= 1) \
    254     printf(m, tcp6stat.f, plurales(tcp6stat.f))
    255 
    256 	p(tcp6s_sndtotal, "\t%ld packet%s sent\n");
    257 	p2(tcp6s_sndpack,tcp6s_sndbyte,
    258 		"\t\t%ld data packet%s (%ld byte%s)\n");
    259 	p2(tcp6s_sndrexmitpack, tcp6s_sndrexmitbyte,
    260 		"\t\t%ld data packet%s (%ld byte%s) retransmitted\n");
    261 	p2(tcp6s_sndacks, tcp6s_delack,
    262 		"\t\t%ld ack-only packet%s (%ld packet%s delayed)\n");
    263 	p(tcp6s_sndurg, "\t\t%ld URG only packet%s\n");
    264 	p(tcp6s_sndprobe, "\t\t%ld window probe packet%s\n");
    265 	p(tcp6s_sndwinup, "\t\t%ld window update packet%s\n");
    266 	p(tcp6s_sndctrl, "\t\t%ld control packet%s\n");
    267 	p(tcp6s_rcvtotal, "\t%ld packet%s received\n");
    268 	p2(tcp6s_rcvackpack, tcp6s_rcvackbyte, "\t\t%ld ack%s (for %ld byte%s)\n");
    269 	p(tcp6s_rcvdupack, "\t\t%ld duplicate ack%s\n");
    270 	p(tcp6s_rcvacktoomuch, "\t\t%ld ack%s for unsent data\n");
    271 	p2(tcp6s_rcvpack, tcp6s_rcvbyte,
    272 		"\t\t%ld packet%s (%ld byte%s) received in-sequence\n");
    273 	p2(tcp6s_rcvduppack, tcp6s_rcvdupbyte,
    274 		"\t\t%ld completely duplicate packet%s (%ld byte%s)\n");
    275 	p(tcp6s_pawsdrop, "\t\t%ld old duplicate packet%s\n");
    276 	p2(tcp6s_rcvpartduppack, tcp6s_rcvpartdupbyte,
    277 		"\t\t%ld packet%s with some dup. data (%ld byte%s duped)\n");
    278 	p2(tcp6s_rcvoopack, tcp6s_rcvoobyte,
    279 		"\t\t%ld out-of-order packet%s (%ld byte%s)\n");
    280 	p2(tcp6s_rcvpackafterwin, tcp6s_rcvbyteafterwin,
    281 		"\t\t%ld packet%s (%ld byte%s) of data after window\n");
    282 	p(tcp6s_rcvwinprobe, "\t\t%ld window probe%s\n");
    283 	p(tcp6s_rcvwinupd, "\t\t%ld window update packet%s\n");
    284 	p(tcp6s_rcvafterclose, "\t\t%ld packet%s received after close\n");
    285 	p(tcp6s_rcvbadsum, "\t\t%ld discarded for bad checksum%s\n");
    286 	p(tcp6s_rcvbadoff, "\t\t%ld discarded for bad header offset field%s\n");
    287 	p(tcp6s_rcvshort, "\t\t%ld discarded because packet%s too short\n");
    288 	p(tcp6s_connattempt, "\t%ld connection request%s\n");
    289 	p(tcp6s_accepts, "\t%ld connection accept%s\n");
    290 	p(tcp6s_badsyn, "\t%ld bad connection attempt%s\n");
    291 	p(tcp6s_connects, "\t%ld connection%s established (including accepts)\n");
    292 	p2(tcp6s_closed, tcp6s_drops,
    293 		"\t%ld connection%s closed (including %ld drop%s)\n");
    294 	p(tcp6s_conndrops, "\t%ld embryonic connection%s dropped\n");
    295 	p2(tcp6s_rttupdated, tcp6s_segstimed,
    296 		"\t%ld segment%s updated rtt (of %ld attempt%s)\n");
    297 	p(tcp6s_rexmttimeo, "\t%ld retransmit timeout%s\n");
    298 	p(tcp6s_timeoutdrop, "\t\t%ld connection%s dropped by rexmit timeout\n");
    299 	p(tcp6s_persisttimeo, "\t%ld persist timeout%s\n");
    300 	p(tcp6s_persistdrop, "\t%ld connection%s timed out in persist\n");
    301 	p(tcp6s_keeptimeo, "\t%ld keepalive timeout%s\n");
    302 	p(tcp6s_keepprobe, "\t\t%ld keepalive probe%s sent\n");
    303 	p(tcp6s_keepdrops, "\t\t%ld connection%s dropped by keepalive\n");
    304 	p(tcp6s_predack, "\t%ld correct ACK header prediction%s\n");
    305 	p(tcp6s_preddat, "\t%ld correct data packet header prediction%s\n");
    306 	p3(tcp6s_pcbcachemiss, "\t%ld PCB cache miss%s\n");
    307 #undef p
    308 #undef p2
    309 #undef p3
    310 }
    311 #endif
    312 
    313 /*
    314  * Dump UDP6 statistics structure.
    315  */
    316 void
    317 udp6_stats(off, name)
    318 	u_long off;
    319 	char *name;
    320 {
    321 	struct udp6stat udp6stat;
    322 	u_quad_t delivered;
    323 
    324 	if (off == 0)
    325 		return;
    326 	kread(off, (char *)&udp6stat, sizeof (udp6stat));
    327 	printf("%s:\n", name);
    328 #define	p(f, m) if (udp6stat.f || sflag <= 1) \
    329     printf(m, (unsigned long long)udp6stat.f, plural(udp6stat.f))
    330 #define	p1(f, m) if (udp6stat.f || sflag <= 1) \
    331     printf(m, (unsigned long long)udp6stat.f)
    332 	p(udp6s_ipackets, "\t%llu datagram%s received\n");
    333 	p1(udp6s_hdrops, "\t%llu with incomplete header\n");
    334 	p1(udp6s_badlen, "\t%llu with bad data length field\n");
    335 	p1(udp6s_badsum, "\t%llu with bad checksum\n");
    336 	p1(udp6s_nosum, "\t%llu with no checksum\n");
    337 	p1(udp6s_noport, "\t%llu dropped due to no socket\n");
    338 	p(udp6s_noportmcast,
    339 	    "\t%llu multicast datagram%s dropped due to no socket\n");
    340 	p1(udp6s_fullsock, "\t%llu dropped due to full socket buffers\n");
    341 	delivered = udp6stat.udp6s_ipackets -
    342 		    udp6stat.udp6s_hdrops -
    343 		    udp6stat.udp6s_badlen -
    344 		    udp6stat.udp6s_badsum -
    345 		    udp6stat.udp6s_noport -
    346 		    udp6stat.udp6s_noportmcast -
    347 		    udp6stat.udp6s_fullsock;
    348 	if (delivered || sflag <= 1)
    349 		printf("\t%llu delivered\n", (unsigned long long)delivered);
    350 	p(udp6s_opackets, "\t%llu datagram%s output\n");
    351 #undef p
    352 #undef p1
    353 }
    354 
    355 static	char *ip6nh[] = {
    356 	"hop by hop",
    357 	"ICMP",
    358 	"IGMP",
    359 	"#3",
    360 	"IP",
    361 	"#5",
    362 	"TCP",
    363 	"#7",
    364 	"#8",
    365 	"#9",
    366 	"#10",
    367 	"#11",
    368 	"#12",
    369 	"#13",
    370 	"#14",
    371 	"#15",
    372 	"#16",
    373 	"UDP",
    374 	"#18",
    375 	"#19",
    376 	"#20",
    377 	"#21",
    378 	"IDP",
    379 	"#23",
    380 	"#24",
    381 	"#25",
    382 	"#26",
    383 	"#27",
    384 	"#28",
    385 	"TP",
    386 	"#30",
    387 	"#31",
    388 	"#32",
    389 	"#33",
    390 	"#34",
    391 	"#35",
    392 	"#36",
    393 	"#37",
    394 	"#38",
    395 	"#39",
    396 	"#40",
    397 	"IP6",
    398 	"#42",
    399 	"routing",
    400 	"fragment",
    401 	"#45",
    402 	"#46",
    403 	"#47",
    404 	"#48",
    405 	"#49",
    406 	"ESP",
    407 	"AH",
    408 	"#52",
    409 	"#53",
    410 	"#54",
    411 	"#55",
    412 	"#56",
    413 	"#57",
    414 	"ICMP6",
    415 	"no next header",
    416 	"destination option",
    417 	"#61",
    418 	"#62",
    419 	"#63",
    420 	"#64",
    421 	"#65",
    422 	"#66",
    423 	"#67",
    424 	"#68",
    425 	"#69",
    426 	"#70",
    427 	"#71",
    428 	"#72",
    429 	"#73",
    430 	"#74",
    431 	"#75",
    432 	"#76",
    433 	"#77",
    434 	"#78",
    435 	"#79",
    436 	"ISOIP",
    437 	"#81",
    438 	"#82",
    439 	"#83",
    440 	"#84",
    441 	"#85",
    442 	"#86",
    443 	"#87",
    444 	"#88",
    445 	"OSPF",
    446 	"#80",
    447 	"#91",
    448 	"#92",
    449 	"#93",
    450 	"#94",
    451 	"#95",
    452 	"#96",
    453 	"Ethernet",
    454 	"#98",
    455 	"#99",
    456 	"#100",
    457 	"#101",
    458 	"#102",
    459 	"PIM",
    460 	"#104",
    461 	"#105",
    462 	"#106",
    463 	"#107",
    464 	"#108",
    465 	"#109",
    466 	"#110",
    467 	"#111",
    468 	"#112",
    469 	"#113",
    470 	"#114",
    471 	"#115",
    472 	"#116",
    473 	"#117",
    474 	"#118",
    475 	"#119",
    476 	"#120",
    477 	"#121",
    478 	"#122",
    479 	"#123",
    480 	"#124",
    481 	"#125",
    482 	"#126",
    483 	"#127",
    484 	"#128",
    485 	"#129",
    486 	"#130",
    487 	"#131",
    488 	"#132",
    489 	"#133",
    490 	"#134",
    491 	"#135",
    492 	"#136",
    493 	"#137",
    494 	"#138",
    495 	"#139",
    496 	"#140",
    497 	"#141",
    498 	"#142",
    499 	"#143",
    500 	"#144",
    501 	"#145",
    502 	"#146",
    503 	"#147",
    504 	"#148",
    505 	"#149",
    506 	"#150",
    507 	"#151",
    508 	"#152",
    509 	"#153",
    510 	"#154",
    511 	"#155",
    512 	"#156",
    513 	"#157",
    514 	"#158",
    515 	"#159",
    516 	"#160",
    517 	"#161",
    518 	"#162",
    519 	"#163",
    520 	"#164",
    521 	"#165",
    522 	"#166",
    523 	"#167",
    524 	"#168",
    525 	"#169",
    526 	"#170",
    527 	"#171",
    528 	"#172",
    529 	"#173",
    530 	"#174",
    531 	"#175",
    532 	"#176",
    533 	"#177",
    534 	"#178",
    535 	"#179",
    536 	"#180",
    537 	"#181",
    538 	"#182",
    539 	"#183",
    540 	"#184",
    541 	"#185",
    542 	"#186",
    543 	"#187",
    544 	"#188",
    545 	"#189",
    546 	"#180",
    547 	"#191",
    548 	"#192",
    549 	"#193",
    550 	"#194",
    551 	"#195",
    552 	"#196",
    553 	"#197",
    554 	"#198",
    555 	"#199",
    556 	"#200",
    557 	"#201",
    558 	"#202",
    559 	"#203",
    560 	"#204",
    561 	"#205",
    562 	"#206",
    563 	"#207",
    564 	"#208",
    565 	"#209",
    566 	"#210",
    567 	"#211",
    568 	"#212",
    569 	"#213",
    570 	"#214",
    571 	"#215",
    572 	"#216",
    573 	"#217",
    574 	"#218",
    575 	"#219",
    576 	"#220",
    577 	"#221",
    578 	"#222",
    579 	"#223",
    580 	"#224",
    581 	"#225",
    582 	"#226",
    583 	"#227",
    584 	"#228",
    585 	"#229",
    586 	"#230",
    587 	"#231",
    588 	"#232",
    589 	"#233",
    590 	"#234",
    591 	"#235",
    592 	"#236",
    593 	"#237",
    594 	"#238",
    595 	"#239",
    596 	"#240",
    597 	"#241",
    598 	"#242",
    599 	"#243",
    600 	"#244",
    601 	"#245",
    602 	"#246",
    603 	"#247",
    604 	"#248",
    605 	"#249",
    606 	"#250",
    607 	"#251",
    608 	"#252",
    609 	"#253",
    610 	"#254",
    611 	"#255",
    612 };
    613 
    614 /*
    615  * Dump IP6 statistics structure.
    616  */
    617 void
    618 ip6_stats(off, name)
    619 	u_long off;
    620 	char *name;
    621 {
    622 	struct ip6stat ip6stat;
    623 	int first, i;
    624 
    625 	if (off == 0)
    626 		return;
    627 
    628 	kread(off, (char *)&ip6stat, sizeof (ip6stat));
    629 	printf("%s:\n", name);
    630 
    631 #define	p(f, m) if (ip6stat.f || sflag <= 1) \
    632     printf(m, (unsigned long long)ip6stat.f, plural(ip6stat.f))
    633 #define	p1(f, m) if (ip6stat.f || sflag <= 1) \
    634     printf(m, (unsigned long long)ip6stat.f)
    635 
    636 	p(ip6s_total, "\t%llu total packet%s received\n");
    637 	p1(ip6s_toosmall, "\t%llu with size smaller than minimum\n");
    638 	p1(ip6s_tooshort, "\t%llu with data size < data length\n");
    639 	p1(ip6s_badoptions, "\t%llu with bad options\n");
    640 	p1(ip6s_badvers, "\t%llu with incorrect version number\n");
    641 	p(ip6s_fragments, "\t%llu fragment%s received\n");
    642 	p(ip6s_fragdropped,
    643 	    "\t%llu fragment%s dropped (dup or out of space)\n");
    644 	p(ip6s_fragtimeout, "\t%llu fragment%s dropped after timeout\n");
    645 	p(ip6s_fragoverflow, "\t%llu fragment%s that exceeded limit\n");
    646 	p(ip6s_reassembled, "\t%llu packet%s reassembled ok\n");
    647 	p(ip6s_delivered, "\t%llu packet%s for this host\n");
    648 	p(ip6s_forward, "\t%llu packet%s forwarded\n");
    649 	p(ip6s_cantforward, "\t%llu packet%s not forwardable\n");
    650 	p(ip6s_redirectsent, "\t%llu redirect%s sent\n");
    651 	p(ip6s_localout, "\t%llu packet%s sent from this host\n");
    652 	p(ip6s_rawout, "\t%llu packet%s sent with fabricated ip header\n");
    653 	p(ip6s_odropped,
    654 	    "\t%llu output packet%s dropped due to no bufs, etc.\n");
    655 	p(ip6s_noroute, "\t%llu output packet%s discarded due to no route\n");
    656 	p(ip6s_fragmented, "\t%llu output datagram%s fragmented\n");
    657 	p(ip6s_ofragments, "\t%llu fragment%s created\n");
    658 	p(ip6s_cantfrag, "\t%llu datagram%s that can't be fragmented\n");
    659 	p(ip6s_badscope, "\t%llu packet%s that violated scope rules\n");
    660 	p(ip6s_notmember, "\t%llu multicast packet%s which we don't join\n");
    661 	for (first = 1, i = 0; i < 256; i++)
    662 		if (ip6stat.ip6s_nxthist[i] != 0) {
    663 			if (first) {
    664 				printf("\tInput histogram:\n");
    665 				first = 0;
    666 			}
    667 			printf("\t\t%s: %llu\n", ip6nh[i],
    668 			       (unsigned long long)ip6stat.ip6s_nxthist[i]);
    669 		}
    670 	printf("\tMbuf statistics:\n");
    671 	p(ip6s_m1, "\t\t%llu one mbuf%s\n");
    672 	for (first = 1, i = 0; i < 32; i++) {
    673 		char ifbuf[IFNAMSIZ];
    674 		if (ip6stat.ip6s_m2m[i] != 0) {
    675 			if (first) {
    676 				printf("\t\ttwo or more mbuf:\n");
    677 				first = 0;
    678 			}
    679 			printf("\t\t\t%s = %llu\n",
    680 			       if_indextoname(i, ifbuf),
    681 			       (unsigned long long)ip6stat.ip6s_m2m[i]);
    682 		}
    683 	}
    684 	p(ip6s_mext1,"\t\t%llu one ext mbuf%s\n");
    685 	p(ip6s_mext2m, "\t\t%llu two or more ext mbuf%s\n");
    686 	p(ip6s_exthdrtoolong,
    687 	    "\t%llu packet%s whose headers are not continuous\n");
    688 	p(ip6s_nogif, "\t%llu tunneling packet%s that can't find gif\n");
    689 	p(ip6s_toomanyhdr,
    690 	    "\t%llu packet%s discarded due to too many headers\n");
    691 
    692 	/* for debugging source address selection */
    693 #define PRINT_SCOPESTAT(s,i) do {\
    694 		switch(i) { /* XXX hardcoding in each case */\
    695 		case 1:\
    696 			p(s, "\t\t%llu node-local%s\n");\
    697 			break;\
    698 		case 2:\
    699 			p(s, "\t\t%llu link-local%s\n");\
    700 			break;\
    701 		case 5:\
    702 			p(s, "\t\t%llu site-local%s\n");\
    703 			break;\
    704 		case 14:\
    705 			p(s, "\t\t%llu global%s\n");\
    706 			break;\
    707 		default:\
    708 			printf("\t\t%llu addresses scope=%x\n",\
    709 			       (unsigned long long)ip6stat.s, i);\
    710 		}\
    711 	} while(0);
    712 
    713 	p(ip6s_sources_none,
    714 	  "\t%llu failure%s of source address selection\n");
    715 	for (first = 1, i = 0; i < 16; i++) {
    716 		if (ip6stat.ip6s_sources_sameif[i]) {
    717 			if (first) {
    718 				printf("\tsource addresses on an outgoing I/F\n");
    719 				first = 0;
    720 			}
    721 			PRINT_SCOPESTAT(ip6s_sources_sameif[i], i);
    722 		}
    723 	}
    724 	for (first = 1, i = 0; i < 16; i++) {
    725 		if (ip6stat.ip6s_sources_otherif[i]) {
    726 			if (first) {
    727 				printf("\tsource addresses on a non-outgoing I/F\n");
    728 				first = 0;
    729 			}
    730 			PRINT_SCOPESTAT(ip6s_sources_otherif[i], i);
    731 		}
    732 	}
    733 	for (first = 1, i = 0; i < 16; i++) {
    734 		if (ip6stat.ip6s_sources_samescope[i]) {
    735 			if (first) {
    736 				printf("\tsource addresses of same scope\n");
    737 				first = 0;
    738 			}
    739 			PRINT_SCOPESTAT(ip6s_sources_samescope[i], i);
    740 		}
    741 	}
    742 	for (first = 1, i = 0; i < 16; i++) {
    743 		if (ip6stat.ip6s_sources_otherscope[i]) {
    744 			if (first) {
    745 				printf("\tsource addresses of a different scope\n");
    746 				first = 0;
    747 			}
    748 			PRINT_SCOPESTAT(ip6s_sources_otherscope[i], i);
    749 		}
    750 	}
    751 	for (first = 1, i = 0; i < 16; i++) {
    752 		if (ip6stat.ip6s_sources_deprecated[i]) {
    753 			if (first) {
    754 				printf("\tdeprecated source addresses\n");
    755 				first = 0;
    756 			}
    757 			PRINT_SCOPESTAT(ip6s_sources_deprecated[i], i);
    758 		}
    759 	}
    760 
    761 	p1(ip6s_forward_cachehit, "\t%llu forward cache hit\n");
    762 	p1(ip6s_forward_cachemiss, "\t%llu forward cache miss\n");
    763 #undef p
    764 #undef p1
    765 }
    766 
    767 /*
    768  * Dump IPv6 per-interface statistics based on RFC 2465.
    769  */
    770 void
    771 ip6_ifstats(ifname)
    772 	char *ifname;
    773 {
    774 	struct in6_ifreq ifr;
    775 	int s;
    776 #define	p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \
    777     printf(m, (unsigned long long)ifr.ifr_ifru.ifru_stat.f, \
    778 	plural(ifr.ifr_ifru.ifru_stat.f))
    779 #define	p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \
    780     printf(m, (unsigned long long)ip6stat.f)
    781 
    782 	if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
    783 		perror("Warning: socket(AF_INET6)");
    784 		return;
    785 	}
    786 
    787 	strcpy(ifr.ifr_name, ifname);
    788 	printf("ip6 on %s:\n", ifr.ifr_name);
    789 
    790 	if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) {
    791 		perror("Warning: ioctl(SIOCGIFSTAT_IN6)");
    792 		goto end;
    793 	}
    794 
    795 	p(ifs6_in_receive, "\t%llu total input datagram%s\n");
    796 	p(ifs6_in_hdrerr, "\t%llu datagram%s with invalid header received\n");
    797 	p(ifs6_in_toobig, "\t%llu datagram%s exceeded MTU received\n");
    798 	p(ifs6_in_noroute, "\t%llu datagram%s with no route received\n");
    799 	p(ifs6_in_addrerr, "\t%llu datagram%s with invalid dst received\n");
    800 	p(ifs6_in_truncated, "\t%llu truncated datagram%s received\n");
    801 	p(ifs6_in_protounknown, "\t%llu datagram%s with unknown proto received\n");
    802 	p(ifs6_in_discard, "\t%llu input datagram%s discarded\n");
    803 	p(ifs6_in_deliver,
    804 	  "\t%llu datagram%s delivered to an upper layer protocol\n");
    805 	p(ifs6_out_forward, "\t%llu datagram%s forwarded to this interface\n");
    806 	p(ifs6_out_request,
    807 	  "\t%llu datagram%s sent from an upper layer protocol\n");
    808 	p(ifs6_out_discard, "\t%llu total discarded output datagram%s\n");
    809 	p(ifs6_out_fragok, "\t%llu output datagram%s fragmented\n");
    810 	p(ifs6_out_fragfail, "\t%llu output datagram%s failed on fragment\n");
    811 	p(ifs6_out_fragcreat, "\t%llu output datagram%s succeeded on fragment\n");
    812 	p(ifs6_reass_reqd, "\t%llu incoming datagram%s fragmented\n");
    813 	p(ifs6_reass_ok, "\t%llu datagram%s reassembled\n");
    814 	p(ifs6_reass_fail, "\t%llu datagram%s failed on reassembling\n");
    815 	p(ifs6_in_mcast, "\t%llu multicast datagram%s received\n");
    816 	p(ifs6_out_mcast, "\t%llu multicast datagram%s sent\n");
    817 
    818   end:
    819 	close(s);
    820 
    821 #undef p
    822 #undef p_5
    823 }
    824 
    825 static	char *icmp6names[] = {
    826 	"#0",
    827 	"unreach",
    828 	"packet too big",
    829 	"time exceed",
    830 	"parameter problem",
    831 	"#5",
    832 	"#6",
    833 	"#7",
    834 	"#8",
    835 	"#9",
    836 	"#10",
    837 	"#11",
    838 	"#12",
    839 	"#13",
    840 	"#14",
    841 	"#15",
    842 	"#16",
    843 	"#17",
    844 	"#18",
    845 	"#19",
    846 	"#20",
    847 	"#21",
    848 	"#22",
    849 	"#23",
    850 	"#24",
    851 	"#25",
    852 	"#26",
    853 	"#27",
    854 	"#28",
    855 	"#29",
    856 	"#30",
    857 	"#31",
    858 	"#32",
    859 	"#33",
    860 	"#34",
    861 	"#35",
    862 	"#36",
    863 	"#37",
    864 	"#38",
    865 	"#39",
    866 	"#40",
    867 	"#41",
    868 	"#42",
    869 	"#43",
    870 	"#44",
    871 	"#45",
    872 	"#46",
    873 	"#47",
    874 	"#48",
    875 	"#49",
    876 	"#50",
    877 	"#51",
    878 	"#52",
    879 	"#53",
    880 	"#54",
    881 	"#55",
    882 	"#56",
    883 	"#57",
    884 	"#58",
    885 	"#59",
    886 	"#60",
    887 	"#61",
    888 	"#62",
    889 	"#63",
    890 	"#64",
    891 	"#65",
    892 	"#66",
    893 	"#67",
    894 	"#68",
    895 	"#69",
    896 	"#70",
    897 	"#71",
    898 	"#72",
    899 	"#73",
    900 	"#74",
    901 	"#75",
    902 	"#76",
    903 	"#77",
    904 	"#78",
    905 	"#79",
    906 	"#80",
    907 	"#81",
    908 	"#82",
    909 	"#83",
    910 	"#84",
    911 	"#85",
    912 	"#86",
    913 	"#87",
    914 	"#88",
    915 	"#89",
    916 	"#80",
    917 	"#91",
    918 	"#92",
    919 	"#93",
    920 	"#94",
    921 	"#95",
    922 	"#96",
    923 	"#97",
    924 	"#98",
    925 	"#99",
    926 	"#100",
    927 	"#101",
    928 	"#102",
    929 	"#103",
    930 	"#104",
    931 	"#105",
    932 	"#106",
    933 	"#107",
    934 	"#108",
    935 	"#109",
    936 	"#110",
    937 	"#111",
    938 	"#112",
    939 	"#113",
    940 	"#114",
    941 	"#115",
    942 	"#116",
    943 	"#117",
    944 	"#118",
    945 	"#119",
    946 	"#120",
    947 	"#121",
    948 	"#122",
    949 	"#123",
    950 	"#124",
    951 	"#125",
    952 	"#126",
    953 	"#127",
    954 	"echo",
    955 	"echo reply",
    956 	"multicast listener query",
    957 	"multicast listener report",
    958 	"multicast listener done",
    959 	"router solicitation",
    960 	"router advertisment",
    961 	"neighbor solicitation",
    962 	"neighbor advertisment",
    963 	"redirect",
    964 	"router renumbering",
    965 	"node information request",
    966 	"node information reply",
    967 	"#141",
    968 	"#142",
    969 	"#143",
    970 	"#144",
    971 	"#145",
    972 	"#146",
    973 	"#147",
    974 	"#148",
    975 	"#149",
    976 	"#150",
    977 	"#151",
    978 	"#152",
    979 	"#153",
    980 	"#154",
    981 	"#155",
    982 	"#156",
    983 	"#157",
    984 	"#158",
    985 	"#159",
    986 	"#160",
    987 	"#161",
    988 	"#162",
    989 	"#163",
    990 	"#164",
    991 	"#165",
    992 	"#166",
    993 	"#167",
    994 	"#168",
    995 	"#169",
    996 	"#170",
    997 	"#171",
    998 	"#172",
    999 	"#173",
   1000 	"#174",
   1001 	"#175",
   1002 	"#176",
   1003 	"#177",
   1004 	"#178",
   1005 	"#179",
   1006 	"#180",
   1007 	"#181",
   1008 	"#182",
   1009 	"#183",
   1010 	"#184",
   1011 	"#185",
   1012 	"#186",
   1013 	"#187",
   1014 	"#188",
   1015 	"#189",
   1016 	"#180",
   1017 	"#191",
   1018 	"#192",
   1019 	"#193",
   1020 	"#194",
   1021 	"#195",
   1022 	"#196",
   1023 	"#197",
   1024 	"#198",
   1025 	"#199",
   1026 	"#200",
   1027 	"#201",
   1028 	"#202",
   1029 	"#203",
   1030 	"#204",
   1031 	"#205",
   1032 	"#206",
   1033 	"#207",
   1034 	"#208",
   1035 	"#209",
   1036 	"#210",
   1037 	"#211",
   1038 	"#212",
   1039 	"#213",
   1040 	"#214",
   1041 	"#215",
   1042 	"#216",
   1043 	"#217",
   1044 	"#218",
   1045 	"#219",
   1046 	"#220",
   1047 	"#221",
   1048 	"#222",
   1049 	"#223",
   1050 	"#224",
   1051 	"#225",
   1052 	"#226",
   1053 	"#227",
   1054 	"#228",
   1055 	"#229",
   1056 	"#230",
   1057 	"#231",
   1058 	"#232",
   1059 	"#233",
   1060 	"#234",
   1061 	"#235",
   1062 	"#236",
   1063 	"#237",
   1064 	"#238",
   1065 	"#239",
   1066 	"#240",
   1067 	"#241",
   1068 	"#242",
   1069 	"#243",
   1070 	"#244",
   1071 	"#245",
   1072 	"#246",
   1073 	"#247",
   1074 	"#248",
   1075 	"#249",
   1076 	"#250",
   1077 	"#251",
   1078 	"#252",
   1079 	"#253",
   1080 	"#254",
   1081 	"#255",
   1082 };
   1083 
   1084 /*
   1085  * Dump ICMPv6 statistics.
   1086  */
   1087 void
   1088 icmp6_stats(off, name)
   1089 	u_long off;
   1090 	char *name;
   1091 {
   1092 	struct icmp6stat icmp6stat;
   1093 	register int i, first;
   1094 
   1095 	if (off == 0)
   1096 		return;
   1097 	kread(off, (char *)&icmp6stat, sizeof (icmp6stat));
   1098 	printf("%s:\n", name);
   1099 
   1100 #define	p(f, m) if (icmp6stat.f || sflag <= 1) \
   1101     printf(m, (unsigned long long)icmp6stat.f, plural(icmp6stat.f))
   1102 #define p_5(f, m) if (icmp6stat.f || sflag <= 1) \
   1103     printf(m, (unsigned long long)icmp6stat.f)
   1104 
   1105 	p(icp6s_error, "\t%llu call%s to icmp6_error\n");
   1106 	p(icp6s_canterror,
   1107 	    "\t%llu error%s not generated because old message was icmp6 or so\n");
   1108 	p(icp6s_toofreq,
   1109 	    "\t%llu error%s not generated because rate limitation\n");
   1110 	for (first = 1, i = 0; i < 256; i++)
   1111 		if (icmp6stat.icp6s_outhist[i] != 0) {
   1112 			if (first) {
   1113 				printf("\tOutput histogram:\n");
   1114 				first = 0;
   1115 			}
   1116 			printf("\t\t%s: %llu\n", icmp6names[i],
   1117 				(unsigned long long)icmp6stat.icp6s_outhist[i]);
   1118 		}
   1119 	p(icp6s_badcode, "\t%llu message%s with bad code fields\n");
   1120 	p(icp6s_tooshort, "\t%llu message%s < minimum length\n");
   1121 	p(icp6s_checksum, "\t%llu bad checksum%s\n");
   1122 	p(icp6s_badlen, "\t%llu message%s with bad length\n");
   1123 	for (first = 1, i = 0; i < ICMP6_MAXTYPE; i++)
   1124 		if (icmp6stat.icp6s_inhist[i] != 0) {
   1125 			if (first) {
   1126 				printf("\tInput histogram:\n");
   1127 				first = 0;
   1128 			}
   1129 			printf("\t\t%s: %llu\n", icmp6names[i],
   1130 				(unsigned long long)icmp6stat.icp6s_inhist[i]);
   1131 		}
   1132 	printf("\tHistogram of error messages to be generated:\n");
   1133 	p_5(icp6s_odst_unreach_noroute, "\t\t%llu no route\n");
   1134 	p_5(icp6s_odst_unreach_admin, "\t\t%llu administratively prohibited\n");
   1135 	p_5(icp6s_odst_unreach_beyondscope, "\t\t%llu beyond scope\n");
   1136 	p_5(icp6s_odst_unreach_addr, "\t\t%llu address unreachable\n");
   1137 	p_5(icp6s_odst_unreach_noport, "\t\t%llu port unreachable\n");
   1138 	p_5(icp6s_opacket_too_big, "\t\t%llu packet too big\n");
   1139 	p_5(icp6s_otime_exceed_transit, "\t\t%llu time exceed transit\n");
   1140 	p_5(icp6s_otime_exceed_reassembly, "\t\t%llu time exceed reassembly\n");
   1141 	p_5(icp6s_oparamprob_header, "\t\t%llu erroneous header field\n");
   1142 	p_5(icp6s_oparamprob_nextheader, "\t\t%llu unrecognized next header\n");
   1143 	p_5(icp6s_oparamprob_option, "\t\t%llu unrecognized option\n");
   1144 	p_5(icp6s_oredirect, "\t\t%llu redirect\n");
   1145 	p_5(icp6s_ounknown, "\t\t%llu unknown\n");
   1146 
   1147 	p(icp6s_reflect, "\t%llu message response%s generated\n");
   1148 	p(icp6s_nd_toomanyopt, "\t%llu message%s with too many ND options\n");
   1149 #undef p
   1150 #undef p_5
   1151 }
   1152 
   1153 /*
   1154  * Dump ICMPv6 per-interface statistics based on RFC 2466.
   1155  */
   1156 void
   1157 icmp6_ifstats(ifname)
   1158 	char *ifname;
   1159 {
   1160 	struct in6_ifreq ifr;
   1161 	int s;
   1162 #define	p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \
   1163     printf(m, (unsigned long long)ifr.ifr_ifru.ifru_icmp6stat.f, \
   1164 	plural(ifr.ifr_ifru.ifru_icmp6stat.f))
   1165 
   1166 	if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
   1167 		perror("Warning: socket(AF_INET6)");
   1168 		return;
   1169 	}
   1170 
   1171 	strcpy(ifr.ifr_name, ifname);
   1172 	printf("icmp6 on %s:\n", ifr.ifr_name);
   1173 
   1174 	if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) {
   1175 		perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)");
   1176 		goto end;
   1177 	}
   1178 
   1179 	p(ifs6_in_msg, "\t%llu total input message%s\n");
   1180 	p(ifs6_in_error, "\t%llu total input error message%s\n");
   1181 	p(ifs6_in_dstunreach, "\t%llu input destination unreachable error%s\n");
   1182 	p(ifs6_in_adminprohib, "\t%llu input administratively prohibited error%s\n");
   1183 	p(ifs6_in_timeexceed, "\t%llu input time exceeded error%s\n");
   1184 	p(ifs6_in_paramprob, "\t%llu input parameter problem error%s\n");
   1185 	p(ifs6_in_pkttoobig, "\t%llu input packet too big error%s\n");
   1186 	p(ifs6_in_echo, "\t%llu input echo request%s\n");
   1187 	p(ifs6_in_echoreply, "\t%llu input echo reply%s\n");
   1188 	p(ifs6_in_routersolicit, "\t%llu input router solicitation%s\n");
   1189 	p(ifs6_in_routeradvert, "\t%llu input router advertisement%s\n");
   1190 	p(ifs6_in_neighborsolicit, "\t%llu input neighbor solicitation%s\n");
   1191 	p(ifs6_in_neighboradvert, "\t%llu input neighbor advertisement%s\n");
   1192 	p(ifs6_in_redirect, "\t%llu input redirect%s\n");
   1193 	p(ifs6_in_mldquery, "\t%llu input MLD query%s\n");
   1194 	p(ifs6_in_mldreport, "\t%llu input MLD report%s\n");
   1195 	p(ifs6_in_mlddone, "\t%llu input MLD done%s\n");
   1196 
   1197 	p(ifs6_out_msg, "\t%llu total output message%s\n");
   1198 	p(ifs6_out_error, "\t%llu total output error message%s\n");
   1199 	p(ifs6_out_dstunreach, "\t%llu output destination unreachable error%s\n");
   1200 	p(ifs6_out_adminprohib, "\t%llu output administratively prohibited error%s\n");
   1201 	p(ifs6_out_timeexceed, "\t%llu output time exceeded error%s\n");
   1202 	p(ifs6_out_paramprob, "\t%llu output parameter problem error%s\n");
   1203 	p(ifs6_out_pkttoobig, "\t%llu output packet too big error%s\n");
   1204 	p(ifs6_out_echo, "\t%llu output echo request%s\n");
   1205 	p(ifs6_out_echoreply, "\t%llu output echo reply%s\n");
   1206 	p(ifs6_out_routersolicit, "\t%llu output router solicitation%s\n");
   1207 	p(ifs6_out_routeradvert, "\t%llu output router advertisement%s\n");
   1208 	p(ifs6_out_neighborsolicit, "\t%llu output neighbor solicitation%s\n");
   1209 	p(ifs6_out_neighboradvert, "\t%llu output neighbor advertisement%s\n");
   1210 	p(ifs6_out_redirect, "\t%llu output redirect%s\n");
   1211 	p(ifs6_out_mldquery, "\t%llu output MLD query%s\n");
   1212 	p(ifs6_out_mldreport, "\t%llu output MLD report%s\n");
   1213 	p(ifs6_out_mlddone, "\t%llu output MLD done%s\n");
   1214 
   1215   end:
   1216 	close(s);
   1217 #undef p
   1218 }
   1219 
   1220 /*
   1221  * Dump PIM statistics structure.
   1222  */
   1223 void
   1224 pim6_stats(off, name)
   1225 	u_long off;
   1226 	char *name;
   1227 {
   1228 	struct pim6stat pim6stat;
   1229 
   1230 	if (off == 0)
   1231 		return;
   1232 	kread(off, (char *)&pim6stat, sizeof(pim6stat));
   1233 	printf("%s:\n", name);
   1234 
   1235 #define	p(f, m) if (pim6stat.f || sflag <= 1) \
   1236     printf(m, (unsigned long long)pim6stat.f, plural(pim6stat.f))
   1237 	p(pim6s_rcv_total, "\t%llu message%s received\n");
   1238 	p(pim6s_rcv_tooshort, "\t%llu message%s received with too few bytes\n");
   1239 	p(pim6s_rcv_badsum, "\t%llu message%s received with bad checksum\n");
   1240 	p(pim6s_rcv_badversion, "\t%llu message%s received with bad version\n");
   1241 	p(pim6s_rcv_registers, "\t%llu register%s received\n");
   1242 	p(pim6s_rcv_badregisters, "\t%llu bad register%s received\n");
   1243 	p(pim6s_snd_registers, "\t%llu register%s sent\n");
   1244 #undef p
   1245 }
   1246 
   1247 /*
   1248  * Pretty print an Internet address (net address + port).
   1249  * If the nflag was specified, use numbers instead of names.
   1250  */
   1251 
   1252 void
   1253 inet6print(in6, port, proto)
   1254 	register struct in6_addr *in6;
   1255 	int port;
   1256 	char *proto;
   1257 {
   1258 #define GETSERVBYPORT6(port, proto, ret)\
   1259 do {\
   1260 	if (strcmp((proto), "tcp6") == 0)\
   1261 		(ret) = getservbyport((int)(port), "tcp");\
   1262 	else if (strcmp((proto), "udp6") == 0)\
   1263 		(ret) = getservbyport((int)(port), "udp");\
   1264 	else\
   1265 		(ret) = getservbyport((int)(port), (proto));\
   1266 } while (0)
   1267 	struct servent *sp = 0;
   1268 	char line[80], *cp;
   1269 	int width;
   1270 
   1271 	width = Aflag ? 12 : 16;
   1272 	if (vflag && width < strlen(inet6name(in6)))
   1273 		width = strlen(inet6name(in6));
   1274 	sprintf(line, "%.*s.", width, inet6name(in6));
   1275 	cp = index(line, '\0');
   1276 	if (!nflag && port)
   1277 		GETSERVBYPORT6(port, proto, sp);
   1278 	if (sp || port == 0)
   1279 		sprintf(cp, "%.8s", sp ? sp->s_name : "*");
   1280 	else
   1281 		sprintf(cp, "%d", ntohs((u_short)port));
   1282 	width = Aflag ? 18 : 22;
   1283 	if (vflag && width < strlen(line))
   1284 		width = strlen(line);
   1285 	printf(" %-*.*s", width, width, line);
   1286 }
   1287 
   1288 /*
   1289  * Construct an Internet address representation.
   1290  * If the nflag has been supplied, give
   1291  * numeric value, otherwise try for symbolic name.
   1292  */
   1293 
   1294 char *
   1295 inet6name(in6p)
   1296 	struct in6_addr *in6p;
   1297 {
   1298 	register char *cp;
   1299 	static char line[50];
   1300 	struct hostent *hp;
   1301 	static char domain[MAXHOSTNAMELEN + 1];
   1302 	static int first = 1;
   1303 	char hbuf[NI_MAXHOST];
   1304 	struct sockaddr_in6 sin6;
   1305 #ifdef KAME_SCOPEID
   1306 	const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
   1307 #else
   1308 	const int niflag = NI_NUMERICHOST;
   1309 #endif
   1310 
   1311 	if (first && !nflag) {
   1312 		first = 0;
   1313 		if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
   1314 		    (cp = index(domain, '.')))
   1315 			(void) strcpy(domain, cp + 1);
   1316 		else
   1317 			domain[0] = 0;
   1318 	}
   1319 	cp = 0;
   1320 	if (!nflag && !IN6_IS_ADDR_UNSPECIFIED(in6p)) {
   1321 		hp = gethostbyaddr((char *)in6p, sizeof(*in6p), AF_INET6);
   1322 		if (hp) {
   1323 			if ((cp = index(hp->h_name, '.')) &&
   1324 			    !strcmp(cp + 1, domain))
   1325 				*cp = 0;
   1326 			cp = hp->h_name;
   1327 		}
   1328 	}
   1329 	if (IN6_IS_ADDR_UNSPECIFIED(in6p))
   1330 		strcpy(line, "*");
   1331 	else if (cp)
   1332 		strcpy(line, cp);
   1333 	else  {
   1334 		memset(&sin6, 0, sizeof(sin6));
   1335 		sin6.sin6_len = sizeof(sin6);
   1336 		sin6.sin6_family = AF_INET6;
   1337 		sin6.sin6_addr = *in6p;
   1338 #ifdef KAME_SCOPEID
   1339 		if (IN6_IS_ADDR_LINKLOCAL(in6p)) {
   1340 			sin6.sin6_scope_id =
   1341 				ntohs(*(u_int16_t *)&in6p->s6_addr[2]);
   1342 			sin6.sin6_addr.s6_addr[2] = 0;
   1343 			sin6.sin6_addr.s6_addr[3] = 0;
   1344 		}
   1345 #endif
   1346 		if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
   1347 				hbuf, sizeof(hbuf), NULL, 0, niflag))
   1348 			strcpy(hbuf, "?");
   1349 		sprintf(line, "%s", hbuf);
   1350 	}
   1351 	return (line);
   1352 }
   1353 
   1354 #ifdef TCP6
   1355 /*
   1356  * Dump the contents of a TCP6 PCB.
   1357  */
   1358 void
   1359 tcp6_dump(pcbaddr)
   1360 	u_long pcbaddr;
   1361 {
   1362 	struct tcp6cb tcp6cb;
   1363 	int i;
   1364 
   1365 	kread(pcbaddr, (char *)&tcp6cb, sizeof(tcp6cb));
   1366 
   1367 	printf("TCP Protocol Control Block at 0x%08lx:\n\n", pcbaddr);
   1368 
   1369 	printf("Timers:\n");
   1370 	for (i = 0; i < TCP6T_NTIMERS; i++)
   1371 		printf("\t%s: %u", tcp6timers[i], tcp6cb.t_timer[i]);
   1372 	printf("\n\n");
   1373 
   1374 	if (tcp6cb.t_state < 0 || tcp6cb.t_state >= TCP6_NSTATES)
   1375 		printf("State: %d", tcp6cb.t_state);
   1376 	else
   1377 		printf("State: %s", tcp6states[tcp6cb.t_state]);
   1378 	printf(", flags 0x%x, in6pcb 0x%lx\n\n", tcp6cb.t_flags,
   1379 	    (u_long)tcp6cb.t_in6pcb);
   1380 
   1381 	printf("rxtshift %d, rxtcur %d, dupacks %d\n", tcp6cb.t_rxtshift,
   1382 	    tcp6cb.t_rxtcur, tcp6cb.t_dupacks);
   1383 	printf("peermaxseg %u, maxseg %u, force %d\n\n", tcp6cb.t_peermaxseg,
   1384 	    tcp6cb.t_maxseg, tcp6cb.t_force);
   1385 
   1386 	printf("snd_una %u, snd_nxt %u, snd_up %u\n",
   1387 	    tcp6cb.snd_una, tcp6cb.snd_nxt, tcp6cb.snd_up);
   1388 	printf("snd_wl1 %u, snd_wl2 %u, iss %u, snd_wnd %llu\n\n",
   1389 	    tcp6cb.snd_wl1, tcp6cb.snd_wl2, tcp6cb.iss,
   1390 	    (unsigned long long)tcp6cb.snd_wnd);
   1391 
   1392 	printf("rcv_wnd %llu, rcv_nxt %u, rcv_up %u, irs %u\n\n",
   1393 	    (unsigned long long)cp6cb.rcv_wnd, tcp6cb.rcv_nxt,
   1394 	    tcp6cb.rcv_up, tcp6cb.irs);
   1395 
   1396 	printf("rcv_adv %u, snd_max %u, snd_cwnd %llu, snd_ssthresh %llu\n",
   1397 	    tcp6cb.rcv_adv, tcp6cb.snd_max, (unsigned long long)tcp6cb.snd_cwnd,
   1398 	    (unsigned long long)tcp6cb.snd_ssthresh);
   1399 
   1400 	printf("idle %d, rtt %d, rtseq %u, srtt %d, rttvar %d, rttmin %d, "
   1401 	    "max_sndwnd %llu\n\n", tcp6cb.t_idle, tcp6cb.t_rtt, tcp6cb.t_rtseq,
   1402 	    tcp6cb.t_srtt, tcp6cb.t_rttvar, tcp6cb.t_rttmin,
   1403 	    (unsigned long long)tcp6cb.max_sndwnd);
   1404 
   1405 	printf("oobflags %d, iobc %d, softerror %d\n\n", tcp6cb.t_oobflags,
   1406 	    tcp6cb.t_iobc, tcp6cb.t_softerror);
   1407 
   1408 	printf("snd_scale %d, rcv_scale %d, req_r_scale %d, req_s_scale %d\n",
   1409 	    tcp6cb.snd_scale, tcp6cb.rcv_scale, tcp6cb.request_r_scale,
   1410 	    tcp6cb.requested_s_scale);
   1411 	printf("ts_recent %u, ts_regent_age %d, last_ack_sent %u\n",
   1412 	    tcp6cb.ts_recent, tcp6cb.ts_recent_age, tcp6cb.last_ack_sent);
   1413 }
   1414 #endif
   1415 
   1416 #endif /*INET6*/
   1417