Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/tcpdump/print-ospf6.c	Lines:	0	256	0.0 %
Date:	2017-11-07	Branches:	0	223	0.0 %


/*	$OpenBSD: print-ospf6.c,v 1.9 2015/11/16 00:16:39 mmcc Exp $	*/


/*
 * Copyright (c) 1992, 1993, 1994, 1995, 1996, 1997
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu)
 */

#ifdef INET6

#include <sys/time.h>
#include <sys/socket.h>

#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>

#include <ctype.h>
#include <stdio.h>
#include <string.h>

#include "interface.h"
#include "addrtoname.h"

#include "ospf6.h"

struct bits {
	u_int32_t bit;
	const char *str;
};

static const struct bits ospf6_option_bits[] = {
	{ OSPF6_OPTION_V6,	"V6" },
	{ OSPF6_OPTION_E,	"E" },
	{ OSPF6_OPTION_MC,	"MC" },
	{ OSPF6_OPTION_N,	"N" },
	{ OSPF6_OPTION_R,	"R" },
	{ OSPF6_OPTION_DC,	"DC" },
	{ 0,			NULL }
};

static const struct bits ospf6_rla_flag_bits[] = {
	{ RLA_FLAG_B,		"B" },
	{ RLA_FLAG_E,		"E" },
	{ RLA_FLAG_V,		"V" },
	{ RLA_FLAG_W,		"W" },
	{ 0,			NULL }
};

static struct tok type2str[] = {
	{ OSPF_TYPE_UMD,	"umd" },
	{ OSPF_TYPE_HELLO,	"hello" },
	{ OSPF_TYPE_DB,		"dd" },
	{ OSPF_TYPE_LSR,	"ls_req" },
	{ OSPF_TYPE_LSU,	"ls_upd" },
	{ OSPF_TYPE_LSA,	"ls_ack" },
	{ 0,			NULL }
};

static char tstr[] = " [|ospf]";

/* Forwards */
static inline void ospf6_print_seqage(u_int32_t, time_t);
static inline void ospf6_print_bits(const struct bits *, u_char);
static void ospf6_print_ls_type(u_int, const rtrid_t *,
    const rtrid_t *, const char *);
static int ospf6_print_lshdr(const struct lsa_hdr *);
static int ospf6_print_lsa(const struct lsa *);
static int ospf6_decode_v3(const struct ospf6hdr *, const u_char *);

static inline void
ospf6_print_seqage(u_int32_t seq, time_t us)
{
	time_t sec = us % 60;
	time_t mins = (us / 60) % 60;
	time_t hour = us / 3600;

	printf(" S %X age ", seq);
	if (hour)
		printf("%u:%02u:%02u",
		    (u_int32_t) hour, (u_int32_t) mins, (u_int32_t) sec);
	else if (mins)
		printf("%u:%02u", (u_int32_t) mins, (u_int32_t) sec);
	else
		printf("%u", (u_int32_t) sec);
}


static inline void
ospf6_print_bits(const struct bits *bp, u_char options)
{
	char sep = ' ';

	do {
		if (options & bp->bit) {
			printf("%c%s", sep, bp->str);
			sep = '/';
		}
	} while ((++bp)->bit);
}

static void
ospf6_print_ls_type(u_int ls_type, const rtrid_t *ls_stateid,
    const rtrid_t *ls_router, const char *fmt)
{
	char *scope;

	switch (ls_type & LS_SCOPE_MASK) {
	case LS_SCOPE_LINKLOCAL:
		scope = "linklocal-";
		break;
	case LS_SCOPE_AREA:
		scope = "area-";
		break;
	case LS_SCOPE_AS:
		scope = "AS-";
		break;
	default:
		scope = "";
		break;
	}

	switch (ls_type & LS_TYPE_MASK) {
	case LS_TYPE_ROUTER:
		printf(" %srtr %s", scope, ipaddr_string(ls_router));
		break;

	case LS_TYPE_NETWORK:
		printf(" %snet dr %s if %s", scope,
		    ipaddr_string(ls_router),
		    ipaddr_string(ls_stateid));
		break;

	case LS_TYPE_INTER_AP:
		printf(" %sinter-area-prefix %s abr %s", scope,
		    ipaddr_string(ls_stateid),
		    ipaddr_string(ls_router));
		break;

	case LS_TYPE_INTER_AR:
		printf(" %sinter-area-router %s rtr %s", scope,
		    ipaddr_string(ls_router),
		    ipaddr_string(ls_stateid));
		break;

	case LS_TYPE_ASE:
		printf(" %sase %s asbr %s", scope,
		    ipaddr_string(ls_stateid),
		    ipaddr_string(ls_router));
		break;

	case LS_TYPE_GROUP:
		printf(" %sgroup %s rtr %s", scope,
		    ipaddr_string(ls_stateid),
		    ipaddr_string(ls_router));
		break;

	case LS_TYPE_TYPE7:
		printf(" %stype7 %s rtr %s", scope,
		    ipaddr_string(ls_stateid),
		    ipaddr_string(ls_router));
		break;

	case LS_TYPE_LINK:
		printf(" %slink %s rtr %s", scope,
		    ipaddr_string(ls_stateid),
		    ipaddr_string(ls_router));
		break;

	case LS_TYPE_INTRA_AP:
		printf(" %sintra-area-prefix %s rtr %s", scope,
		    ipaddr_string(ls_stateid),
		    ipaddr_string(ls_router));
		break;

	default:
		printf(" %s", scope);
		printf(fmt, ls_type);
		break;
	}

}

static int
ospf6_print_lshdr(const struct lsa_hdr *lshp)
{

	TCHECK(lshp->ls_type);
	printf(" {");						/* } (ctags) */

	TCHECK(lshp->ls_seq);
	ospf6_print_seqage(ntohl(lshp->ls_seq), ntohs(lshp->ls_age));
	ospf6_print_ls_type(ntohs(lshp->ls_type), &lshp->ls_stateid,
		&lshp->ls_router, "ls_type %d");

	return (0);
trunc:
	return (1);
}

static int
ospf6_print_lsaprefix(const struct lsa_prefix *lsapp)
{
	int k;
	struct in6_addr prefix;

	TCHECK(*lsapp);
	k = (lsapp->lsa_p_len + 31) / 32;
	if (k * 4 > sizeof(struct in6_addr)) {
		printf("??prefixlen %d??", lsapp->lsa_p_len);
		goto trunc;
	}
	memset(&prefix, 0, sizeof(prefix));
	memcpy(&prefix, lsapp->lsa_p_prefix, k * 4);
	printf(" %s/%d", ip6addr_string(&prefix),
		lsapp->lsa_p_len);
	if (lsapp->lsa_p_opt)
		printf("(opt=%x)", lsapp->lsa_p_opt);
	return sizeof(*lsapp) - 4 + k * 4;

trunc:
	return -1;
}


/*
 * Print a single link state advertisement.  If truncated return 1, else 0.
 */
static int
ospf6_print_lsa(const struct lsa *lsap)
{
	const u_char *ls_end;
	const struct rlalink *rlp;
#if 0
	const struct tos_metric *tosp;
#endif
	const rtrid_t *ap;
#if 0
	const struct aslametric *almp;
	const struct mcla *mcp;
#endif
	const struct llsa *llsap;
	const struct lsa_prefix *lsapp;
#if 0
	const u_int32_t *lp;
#endif
	int j, k;

	if (ospf6_print_lshdr(&lsap->ls_hdr))
		return (1);
	TCHECK(lsap->ls_hdr.ls_length);
	ls_end = (u_char *)lsap + ntohs(lsap->ls_hdr.ls_length);
	switch (ntohs(lsap->ls_hdr.ls_type)) {
	case LS_TYPE_ROUTER | LS_SCOPE_AREA:
		TCHECK(lsap->lsa_un.un_rla.rla_flags);
		ospf6_print_bits(ospf6_rla_flag_bits,
			lsap->lsa_un.un_rla.rla_flags);
		TCHECK(lsap->lsa_un.un_rla.rla_options);
		ospf6_print_bits(ospf6_option_bits,
			ntohl(lsap->lsa_un.un_rla.rla_options));

		TCHECK(lsap->lsa_un.un_rla.rla_link);
		rlp = lsap->lsa_un.un_rla.rla_link;
		while (rlp + sizeof(*rlp) <= (struct rlalink *)ls_end) {
			TCHECK(*rlp);
			printf(" {");				/* } (ctags) */
			switch (rlp->link_type) {

			case RLA_TYPE_VIRTUAL:
				printf(" virt");
				/* FALLTHROUGH */

			case RLA_TYPE_ROUTER:
				printf(" nbrid %s nbrif %s if %s",
				    ipaddr_string(&rlp->link_nrtid),
				    ipaddr_string(&rlp->link_nifid),
				    ipaddr_string(&rlp->link_ifid));
				break;

			case RLA_TYPE_TRANSIT:
				printf(" dr %s drif %s if %s",
				    ipaddr_string(&rlp->link_nrtid),
				    ipaddr_string(&rlp->link_nifid),
				    ipaddr_string(&rlp->link_ifid));
				break;

			default:
								/* { (ctags) */
				printf(" ??RouterLinksType 0x%02x?? }",
				    rlp->link_type);
				return (0);
			}
			printf(" metric %d", ntohs(rlp->link_metric));
								/* { (ctags) */
			printf(" }");
			rlp++;
		}
		break;

	case LS_TYPE_NETWORK | LS_SCOPE_AREA:
		TCHECK(lsap->lsa_un.un_nla.nla_options);
		ospf6_print_bits(ospf6_option_bits,
			ntohl(lsap->lsa_un.un_nla.nla_options));
		printf(" rtrs");
		ap = lsap->lsa_un.un_nla.nla_router;
		while ((u_char *)ap < ls_end) {
			TCHECK(*ap);
			printf(" %s", ipaddr_string(ap));
			++ap;
		}
		break;

	case LS_TYPE_INTER_AP | LS_SCOPE_AREA:
		TCHECK(lsap->lsa_un.un_inter_ap.inter_ap_metric);
		printf(" metric %u",
			(u_int32_t)ntohl(lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC);
		lsapp = lsap->lsa_un.un_inter_ap.inter_ap_prefix;
		while (lsapp + sizeof(lsapp) <= (struct lsa_prefix *)ls_end) {
			k = ospf6_print_lsaprefix(lsapp);
			if (k < 0)
				goto trunc;
			lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k);
		}
		break;

#if 0
	case LS_TYPE_SUM_ABR:
		TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);
		lp = lsap->lsa_un.un_sla.sla_tosmetric;
		while ((u_char *)lp < ls_end) {
			u_int32_t ul;

			TCHECK(*lp);
			ul = ntohl(*lp);
			printf(" tos %d metric %d",
			    (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS,
			    ul & SLA_MASK_METRIC);
			++lp;
		}
		break;

	case LS_TYPE_ASE:
		TCHECK(lsap->lsa_un.un_nla.nla_mask);
		printf(" mask %s",
		    ipaddr_string(&lsap->lsa_un.un_asla.asla_mask));

		TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);
		almp = lsap->lsa_un.un_asla.asla_metric;
		while ((u_char *)almp < ls_end) {
			u_int32_t ul;

			TCHECK(almp->asla_tosmetric);
			ul = ntohl(almp->asla_tosmetric);
			printf(" type %d tos %d metric %d",
			    (ul & ASLA_FLAG_EXTERNAL) ? 2 : 1,
			    (ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS,
			    (ul & ASLA_MASK_METRIC));
			TCHECK(almp->asla_forward);
			if (almp->asla_forward.s_addr) {
				printf(" forward %s",
				    ipaddr_string(&almp->asla_forward));
			}
			TCHECK(almp->asla_tag);
			if (almp->asla_tag.s_addr) {
				printf(" tag %s",
				    ipaddr_string(&almp->asla_tag));
			}
			++almp;
		}
		break;

	case LS_TYPE_GROUP:
		/* Multicast extensions as of 23 July 1991 */
		mcp = lsap->lsa_un.un_mcla;
		while ((u_char *)mcp < ls_end) {
			TCHECK(mcp->mcla_vid);
			switch (ntohl(mcp->mcla_vtype)) {

			case MCLA_VERTEX_ROUTER:
				printf(" rtr rtrid %s",
				    ipaddr_string(&mcp->mcla_vid));
				break;

			case MCLA_VERTEX_NETWORK:
				printf(" net dr %s",
				    ipaddr_string(&mcp->mcla_vid));
				break;

			default:
				printf(" ??VertexType %u??",
				    (u_int32_t)ntohl(mcp->mcla_vtype));
				break;
			}
		++mcp;
		}
#endif

	case LS_TYPE_LINK:
		/* Link LSA */
		llsap = &lsap->lsa_un.un_llsa;
		TCHECK(llsap->llsa_options);
		ospf6_print_bits(ospf6_option_bits, ntohl(llsap->llsa_options));
		TCHECK(llsap->llsa_nprefix);
		printf(" pri %d lladdr %s npref %d", llsap->llsa_priority,
			ip6addr_string(&llsap->llsa_lladdr),
			(u_int32_t)ntohl(llsap->llsa_nprefix));
		lsapp = llsap->llsa_prefix;
		for (j = 0; j < ntohl(llsap->llsa_nprefix); j++) {
			k = ospf6_print_lsaprefix(lsapp);
			if (k < 0)
				goto trunc;
			lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k);
		}
		break;

	case LS_TYPE_INTRA_AP | LS_SCOPE_AREA:
		/* Intra-Area-Prefix LSA */
		TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_rtid);
		ospf6_print_ls_type(
			ntohs(lsap->lsa_un.un_intra_ap.intra_ap_lstype),
			&lsap->lsa_un.un_intra_ap.intra_ap_lsid,
			&lsap->lsa_un.un_intra_ap.intra_ap_rtid,
			"LinkStateType %d");
		TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
		printf(" npref %d",
			ntohs(lsap->lsa_un.un_intra_ap.intra_ap_nprefix));

		lsapp = lsap->lsa_un.un_intra_ap.intra_ap_prefix;
		for (j = 0;
		     j < ntohs(lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
		     j++) {
			k = ospf6_print_lsaprefix(lsapp);
			if (k < 0)
				goto trunc;
			lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k);
		}
		break;

	default:
		printf(" ??LinkStateType 0x%04x??",
			ntohs(lsap->ls_hdr.ls_type));
	}

								/* { (ctags) */
	fputs(" }", stdout);
	return (0);
trunc:
	fputs(" }", stdout);
	return (1);
}

static int
ospf6_decode_v3(const struct ospf6hdr *op, const u_char *dataend)
{
	const rtrid_t *ap;
	const struct lsr *lsrp;
	const struct lsa_hdr *lshp;
	const struct lsa *lsap;
	char sep;
	int i;

	switch (op->ospf6_type) {

	case OSPF_TYPE_UMD:
		/*
		 * Rob Coltun's special monitoring packets;
		 * do nothing
		 */
		break;

	case OSPF_TYPE_HELLO:
		if (vflag) {
			TCHECK(op->ospf6_hello.hello_deadint);
			ospf6_print_bits(ospf6_option_bits,
			    ntohl(op->ospf6_hello.hello_options));
			printf(" ifid %s pri %d int %d dead %u",
			    ipaddr_string(&op->ospf6_hello.hello_ifid),
			    op->ospf6_hello.hello_priority,
			    ntohs(op->ospf6_hello.hello_helloint),
			    ntohs(op->ospf6_hello.hello_deadint));
		}
		TCHECK(op->ospf6_hello.hello_dr);
		if (op->ospf6_hello.hello_dr != 0)
			printf(" dr %s",
			    ipaddr_string(&op->ospf6_hello.hello_dr));
		TCHECK(op->ospf6_hello.hello_bdr);
		if (op->ospf6_hello.hello_bdr != 0)
			printf(" bdr %s",
			    ipaddr_string(&op->ospf6_hello.hello_bdr));
		if (vflag) {
			printf(" nbrs");
			ap = op->ospf6_hello.hello_neighbor;
			while ((u_char *)ap < dataend) {
				TCHECK(*ap);
				printf(" %s", ipaddr_string(ap));
				++ap;
			}
		}
		break;	/* HELLO */

	case OSPF_TYPE_DB:
		TCHECK(op->ospf6_db.db_options);
		ospf6_print_bits(ospf6_option_bits,
			ntohl(op->ospf6_db.db_options));
		sep = ' ';
		TCHECK(op->ospf6_db.db_flags);
		if (op->ospf6_db.db_flags & OSPF6_DB_INIT) {
			printf("%cI", sep);
			sep = '/';
		}
		if (op->ospf6_db.db_flags & OSPF6_DB_MORE) {
			printf("%cM", sep);
			sep = '/';
		}
		if (op->ospf6_db.db_flags & OSPF6_DB_MASTER) {
			printf("%cMS", sep);
			sep = '/';
		}
		TCHECK(op->ospf6_db.db_seq);
		printf(" mtu %u S %X", ntohs(op->ospf6_db.db_mtu),
			(u_int32_t)ntohl(op->ospf6_db.db_seq));

		if (vflag) {
			/* Print all the LS adv's */
			lshp = op->ospf6_db.db_lshdr;

			while (!ospf6_print_lshdr(lshp)) {
							/* { (ctags) */
				printf(" }");
				++lshp;
			}
		}
		break;

	case OSPF_TYPE_LSR:
		if (vflag) {
			lsrp = op->ospf6_lsr;
			while ((u_char *)lsrp < dataend) {
				TCHECK(*lsrp);
				printf(" {");		/* } (ctags) */
				ospf6_print_ls_type(ntohs(lsrp->ls_type),
				    &lsrp->ls_stateid,
				    &lsrp->ls_router,
				    "LinkStateType %d");
							/* { (ctags) */
				printf(" }");
				++lsrp;
			}
		}
		break;

	case OSPF_TYPE_LSU:
		if (vflag) {
			lsap = op->ospf6_lsu.lsu_lsa;
			TCHECK(op->ospf6_lsu.lsu_count);
			i = ntohl(op->ospf6_lsu.lsu_count);
			while (i--) {
				if (ospf6_print_lsa(lsap))
					goto trunc;
				lsap = (struct lsa *)((u_char *)lsap +
				    ntohs(lsap->ls_hdr.ls_length));
			}
		}
		break;


	case OSPF_TYPE_LSA:
		if (vflag) {
			lshp = op->ospf6_lsa.lsa_lshdr;

			while (!ospf6_print_lshdr(lshp)) {
							/* { (ctags) */
				printf(" }");
				++lshp;
			}
		}
		break;

	default:
		printf("v3 type %d", op->ospf6_type);
		break;
	}
	return (0);
trunc:
	return (1);
}

void
ospf6_print(const u_char *bp, u_int length)
{
	const struct ospf6hdr *op;
	const u_char *dataend;
	const char *cp;

	op = (struct ospf6hdr *)bp;

	/* If the type is valid translate it, or just print the type */
	/* value.  If it's not valid, say so and return */
	TCHECK(op->ospf6_type);
	cp = tok2str(type2str, "type%d", op->ospf6_type);
	printf(" OSPFv%d-%s %d:", op->ospf6_version, cp, length);
	if (*cp == 't')
		return;

	TCHECK(op->ospf6_len);
	if (length != ntohs(op->ospf6_len)) {
		printf(" [len %d]", ntohs(op->ospf6_len));
		return;
	}
	dataend = bp + length;

	TCHECK(op->ospf6_routerid);
	printf(" rtrid %s", ipaddr_string(&op->ospf6_routerid));

	TCHECK(op->ospf6_areaid);
	if (op->ospf6_areaid != 0)
		printf(" area %s", ipaddr_string(&op->ospf6_areaid));
	else
		printf(" backbone");
	TCHECK(op->ospf6_instanceid);
	if (op->ospf6_instanceid)
		printf(" instance %u", op->ospf6_instanceid);

	/* Do rest according to version.	 */
	switch (op->ospf6_version) {

	case 3:
		/* ospf version 3 */
		if (ospf6_decode_v3(op, dataend))
			goto trunc;
		break;

	default:
		printf(" ospf [version %d]", op->ospf6_version);
		break;
	}			/* end switch on version */

	return;
trunc:
	fputs(tstr, stdout);
}

#endif /* INET6 */


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: print-ospf6.c,v 1.9 2015/11/16 00:16:39 mmcc Exp $ */
2
3
4			/*
5			* Copyright (c) 1992, 1993, 1994, 1995, 1996, 1997
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that: (1) source code distributions
10			* retain the above copyright notice and this paragraph in its entirety, (2)
11			* distributions including binary code include the above copyright notice and
12			* this paragraph in its entirety in the documentation or other materials
13			* provided with the distribution, and (3) all advertising materials mentioning
14			* features or use of this software display the following acknowledgement:
15			* ``This product includes software developed by the University of California,
16			* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
17			* the University nor the names of its contributors may be used to endorse
18			* or promote products derived from this software without specific prior
19			* written permission.
20			* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
21			* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
22			* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
23			*
24			* OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu)
25			*/
26
27			#ifdef INET6
28
29			#include <sys/time.h>
30			#include <sys/socket.h>
31
32			#include <netinet/in.h>
33			#include <netinet/ip.h>
34			#include <netinet/ip_var.h>
35
36			#include <ctype.h>
37			#include <stdio.h>
38			#include <string.h>
39
40			#include "interface.h"
41			#include "addrtoname.h"
42
43			#include "ospf6.h"
44
45			struct bits {
46			u_int32_t bit;
47			const char *str;
48			};
49
50			static const struct bits ospf6_option_bits[] = {
51			{ OSPF6_OPTION_V6, "V6" },
52			{ OSPF6_OPTION_E, "E" },
53			{ OSPF6_OPTION_MC, "MC" },
54			{ OSPF6_OPTION_N, "N" },
55			{ OSPF6_OPTION_R, "R" },
56			{ OSPF6_OPTION_DC, "DC" },
57			{ 0, NULL }
58			};
59
60			static const struct bits ospf6_rla_flag_bits[] = {
61			{ RLA_FLAG_B, "B" },
62			{ RLA_FLAG_E, "E" },
63			{ RLA_FLAG_V, "V" },
64			{ RLA_FLAG_W, "W" },
65			{ 0, NULL }
66			};
67
68			static struct tok type2str[] = {
69			{ OSPF_TYPE_UMD, "umd" },
70			{ OSPF_TYPE_HELLO, "hello" },
71			{ OSPF_TYPE_DB, "dd" },
72			{ OSPF_TYPE_LSR, "ls_req" },
73			{ OSPF_TYPE_LSU, "ls_upd" },
74			{ OSPF_TYPE_LSA, "ls_ack" },
75			{ 0, NULL }
76			};
77
78			static char tstr[] = " [\|ospf]";
79
80			/* Forwards */
81			static inline void ospf6_print_seqage(u_int32_t, time_t);
82			static inline void ospf6_print_bits(const struct bits *, u_char);
83			static void ospf6_print_ls_type(u_int, const rtrid_t *,
84			const rtrid_t , const char );
85			static int ospf6_print_lshdr(const struct lsa_hdr *);
86			static int ospf6_print_lsa(const struct lsa *);
87			static int ospf6_decode_v3(const struct ospf6hdr , const u_char );
88
89			static inline void
90			ospf6_print_seqage(u_int32_t seq, time_t us)
91			{
92			time_t sec = us % 60;
93			time_t mins = (us / 60) % 60;
94			time_t hour = us / 3600;
95
96			printf(" S %X age ", seq);
97			if (hour)
98			printf("%u:%02u:%02u",
99			(u_int32_t) hour, (u_int32_t) mins, (u_int32_t) sec);
100			else if (mins)
101			printf("%u:%02u", (u_int32_t) mins, (u_int32_t) sec);
102			else
103			printf("%u", (u_int32_t) sec);
104			}
105
106
107			static inline void
108			ospf6_print_bits(const struct bits *bp, u_char options)
109			{
110			char sep = ' ';
111
112			do {
113			if (options & bp->bit) {
114			printf("%c%s", sep, bp->str);
115			sep = '/';
116			}
117			} while ((++bp)->bit);
118			}
119
120			static void
121			ospf6_print_ls_type(u_int ls_type, const rtrid_t *ls_stateid,
122			const rtrid_t ls_router, const char fmt)
123			{
124			char *scope;
125
126			switch (ls_type & LS_SCOPE_MASK) {
127			case LS_SCOPE_LINKLOCAL:
128			scope = "linklocal-";
129			break;
130			case LS_SCOPE_AREA:
131			scope = "area-";
132			break;
133			case LS_SCOPE_AS:
134			scope = "AS-";
135			break;
136			default:
137			scope = "";
138			break;
139			}
140
141			switch (ls_type & LS_TYPE_MASK) {
142			case LS_TYPE_ROUTER:
143			printf(" %srtr %s", scope, ipaddr_string(ls_router));
144			break;
145
146			case LS_TYPE_NETWORK:
147			printf(" %snet dr %s if %s", scope,
148			ipaddr_string(ls_router),
149			ipaddr_string(ls_stateid));
150			break;
151
152			case LS_TYPE_INTER_AP:
153			printf(" %sinter-area-prefix %s abr %s", scope,
154			ipaddr_string(ls_stateid),
155			ipaddr_string(ls_router));
156			break;
157
158			case LS_TYPE_INTER_AR:
159			printf(" %sinter-area-router %s rtr %s", scope,
160			ipaddr_string(ls_router),
161			ipaddr_string(ls_stateid));
162			break;
163
164			case LS_TYPE_ASE:
165			printf(" %sase %s asbr %s", scope,
166			ipaddr_string(ls_stateid),
167			ipaddr_string(ls_router));
168			break;
169
170			case LS_TYPE_GROUP:
171			printf(" %sgroup %s rtr %s", scope,
172			ipaddr_string(ls_stateid),
173			ipaddr_string(ls_router));
174			break;
175
176			case LS_TYPE_TYPE7:
177			printf(" %stype7 %s rtr %s", scope,
178			ipaddr_string(ls_stateid),
179			ipaddr_string(ls_router));
180			break;
181
182			case LS_TYPE_LINK:
183			printf(" %slink %s rtr %s", scope,
184			ipaddr_string(ls_stateid),
185			ipaddr_string(ls_router));
186			break;
187
188			case LS_TYPE_INTRA_AP:
189			printf(" %sintra-area-prefix %s rtr %s", scope,
190			ipaddr_string(ls_stateid),
191			ipaddr_string(ls_router));
192			break;
193
194			default:
195			printf(" %s", scope);
196			printf(fmt, ls_type);
197			break;
198			}
199
200			}
201
202			static int
203			ospf6_print_lshdr(const struct lsa_hdr *lshp)
204			{
205
206			TCHECK(lshp->ls_type);
207			printf(" {"); /* } (ctags) */
208
209			TCHECK(lshp->ls_seq);
210			ospf6_print_seqage(ntohl(lshp->ls_seq), ntohs(lshp->ls_age));
211			ospf6_print_ls_type(ntohs(lshp->ls_type), &lshp->ls_stateid,
212			&lshp->ls_router, "ls_type %d");
213
214			return (0);
215			trunc:
216			return (1);
217			}
218
219			static int
220			ospf6_print_lsaprefix(const struct lsa_prefix *lsapp)
221			{
222			int k;
223			struct in6_addr prefix;
224
225			TCHECK(*lsapp);
226			k = (lsapp->lsa_p_len + 31) / 32;
227			if (k * 4 > sizeof(struct in6_addr)) {
228			printf("??prefixlen %d??", lsapp->lsa_p_len);
229			goto trunc;
230			}
231			memset(&prefix, 0, sizeof(prefix));
232			memcpy(&prefix, lsapp->lsa_p_prefix, k * 4);
233			printf(" %s/%d", ip6addr_string(&prefix),
234			lsapp->lsa_p_len);
235			if (lsapp->lsa_p_opt)
236			printf("(opt=%x)", lsapp->lsa_p_opt);
237			return sizeof(lsapp) - 4 + k 4;
238
239			trunc:
240			return -1;
241			}
242
243
244			/*
245			* Print a single link state advertisement. If truncated return 1, else 0.
246			*/
247			static int
248			ospf6_print_lsa(const struct lsa *lsap)
249			{
250			const u_char *ls_end;
251			const struct rlalink *rlp;
252			#if 0
253			const struct tos_metric *tosp;
254			#endif
255			const rtrid_t *ap;
256			#if 0
257			const struct aslametric *almp;
258			const struct mcla *mcp;
259			#endif
260			const struct llsa *llsap;
261			const struct lsa_prefix *lsapp;
262			#if 0
263			const u_int32_t *lp;
264			#endif
265			int j, k;
266
267			if (ospf6_print_lshdr(&lsap->ls_hdr))
268			return (1);
269			TCHECK(lsap->ls_hdr.ls_length);
270			ls_end = (u_char *)lsap + ntohs(lsap->ls_hdr.ls_length);
271			switch (ntohs(lsap->ls_hdr.ls_type)) {
272			case LS_TYPE_ROUTER \| LS_SCOPE_AREA:
273			TCHECK(lsap->lsa_un.un_rla.rla_flags);
274			ospf6_print_bits(ospf6_rla_flag_bits,
275			lsap->lsa_un.un_rla.rla_flags);
276			TCHECK(lsap->lsa_un.un_rla.rla_options);
277			ospf6_print_bits(ospf6_option_bits,
278			ntohl(lsap->lsa_un.un_rla.rla_options));
279
280			TCHECK(lsap->lsa_un.un_rla.rla_link);
281			rlp = lsap->lsa_un.un_rla.rla_link;
282			while (rlp + sizeof(rlp) <= (struct rlalink )ls_end) {
283			TCHECK(*rlp);
284			printf(" {"); /* } (ctags) */
285			switch (rlp->link_type) {
286
287			case RLA_TYPE_VIRTUAL:
288			printf(" virt");
289			/* FALLTHROUGH */
290
291			case RLA_TYPE_ROUTER:
292			printf(" nbrid %s nbrif %s if %s",
293			ipaddr_string(&rlp->link_nrtid),
294			ipaddr_string(&rlp->link_nifid),
295			ipaddr_string(&rlp->link_ifid));
296			break;
297
298			case RLA_TYPE_TRANSIT:
299			printf(" dr %s drif %s if %s",
300			ipaddr_string(&rlp->link_nrtid),
301			ipaddr_string(&rlp->link_nifid),
302			ipaddr_string(&rlp->link_ifid));
303			break;
304
305			default:
306			/* { (ctags) */
307			printf(" ??RouterLinksType 0x%02x?? }",
308			rlp->link_type);
309			return (0);
310			}
311			printf(" metric %d", ntohs(rlp->link_metric));
312			/* { (ctags) */
313			printf(" }");
314			rlp++;
315			}
316			break;
317
318			case LS_TYPE_NETWORK \| LS_SCOPE_AREA:
319			TCHECK(lsap->lsa_un.un_nla.nla_options);
320			ospf6_print_bits(ospf6_option_bits,
321			ntohl(lsap->lsa_un.un_nla.nla_options));
322			printf(" rtrs");
323			ap = lsap->lsa_un.un_nla.nla_router;
324			while ((u_char *)ap < ls_end) {
325			TCHECK(*ap);
326			printf(" %s", ipaddr_string(ap));
327			++ap;
328			}
329			break;
330
331			case LS_TYPE_INTER_AP \| LS_SCOPE_AREA:
332			TCHECK(lsap->lsa_un.un_inter_ap.inter_ap_metric);
333			printf(" metric %u",
334			(u_int32_t)ntohl(lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC);
335			lsapp = lsap->lsa_un.un_inter_ap.inter_ap_prefix;
336			while (lsapp + sizeof(lsapp) <= (struct lsa_prefix *)ls_end) {
337			k = ospf6_print_lsaprefix(lsapp);
338			if (k < 0)
339			goto trunc;
340			lsapp = (struct lsa_prefix )(((u_char )lsapp) + k);
341			}
342			break;
343
344			#if 0
345			case LS_TYPE_SUM_ABR:
346			TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);
347			lp = lsap->lsa_un.un_sla.sla_tosmetric;
348			while ((u_char *)lp < ls_end) {
349			u_int32_t ul;
350
351			TCHECK(*lp);
352			ul = ntohl(*lp);
353			printf(" tos %d metric %d",
354			(ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS,
355			ul & SLA_MASK_METRIC);
356			++lp;
357			}
358			break;
359
360			case LS_TYPE_ASE:
361			TCHECK(lsap->lsa_un.un_nla.nla_mask);
362			printf(" mask %s",
363			ipaddr_string(&lsap->lsa_un.un_asla.asla_mask));
364
365			TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);
366			almp = lsap->lsa_un.un_asla.asla_metric;
367			while ((u_char *)almp < ls_end) {
368			u_int32_t ul;
369
370			TCHECK(almp->asla_tosmetric);
371			ul = ntohl(almp->asla_tosmetric);
372			printf(" type %d tos %d metric %d",
373			(ul & ASLA_FLAG_EXTERNAL) ? 2 : 1,
374			(ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS,
375			(ul & ASLA_MASK_METRIC));
376			TCHECK(almp->asla_forward);
377			if (almp->asla_forward.s_addr) {
378			printf(" forward %s",
379			ipaddr_string(&almp->asla_forward));
380			}
381			TCHECK(almp->asla_tag);
382			if (almp->asla_tag.s_addr) {
383			printf(" tag %s",
384			ipaddr_string(&almp->asla_tag));
385			}
386			++almp;
387			}
388			break;
389
390			case LS_TYPE_GROUP:
391			/* Multicast extensions as of 23 July 1991 */
392			mcp = lsap->lsa_un.un_mcla;
393			while ((u_char *)mcp < ls_end) {
394			TCHECK(mcp->mcla_vid);
395			switch (ntohl(mcp->mcla_vtype)) {
396
397			case MCLA_VERTEX_ROUTER:
398			printf(" rtr rtrid %s",
399			ipaddr_string(&mcp->mcla_vid));
400			break;
401
402			case MCLA_VERTEX_NETWORK:
403			printf(" net dr %s",
404			ipaddr_string(&mcp->mcla_vid));
405			break;
406
407			default:
408			printf(" ??VertexType %u??",
409			(u_int32_t)ntohl(mcp->mcla_vtype));
410			break;
411			}
412			++mcp;
413			}
414			#endif
415
416			case LS_TYPE_LINK:
417			/* Link LSA */
418			llsap = &lsap->lsa_un.un_llsa;
419			TCHECK(llsap->llsa_options);
420			ospf6_print_bits(ospf6_option_bits, ntohl(llsap->llsa_options));
421			TCHECK(llsap->llsa_nprefix);
422			printf(" pri %d lladdr %s npref %d", llsap->llsa_priority,
423			ip6addr_string(&llsap->llsa_lladdr),
424			(u_int32_t)ntohl(llsap->llsa_nprefix));
425			lsapp = llsap->llsa_prefix;
426			for (j = 0; j < ntohl(llsap->llsa_nprefix); j++) {
427			k = ospf6_print_lsaprefix(lsapp);
428			if (k < 0)
429			goto trunc;
430			lsapp = (struct lsa_prefix )(((u_char )lsapp) + k);
431			}
432			break;
433
434			case LS_TYPE_INTRA_AP \| LS_SCOPE_AREA:
435			/* Intra-Area-Prefix LSA */
436			TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_rtid);
437			ospf6_print_ls_type(
438			ntohs(lsap->lsa_un.un_intra_ap.intra_ap_lstype),
439			&lsap->lsa_un.un_intra_ap.intra_ap_lsid,
440			&lsap->lsa_un.un_intra_ap.intra_ap_rtid,
441			"LinkStateType %d");
442			TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
443			printf(" npref %d",
444			ntohs(lsap->lsa_un.un_intra_ap.intra_ap_nprefix));
445
446			lsapp = lsap->lsa_un.un_intra_ap.intra_ap_prefix;
447			for (j = 0;
448			j < ntohs(lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
449			j++) {
450			k = ospf6_print_lsaprefix(lsapp);
451			if (k < 0)
452			goto trunc;
453			lsapp = (struct lsa_prefix )(((u_char )lsapp) + k);
454			}
455			break;
456
457			default:
458			printf(" ??LinkStateType 0x%04x??",
459			ntohs(lsap->ls_hdr.ls_type));
460			}
461
462			/* { (ctags) */
463			fputs(" }", stdout);
464			return (0);
465			trunc:
466			fputs(" }", stdout);
467			return (1);
468			}
469
470			static int
471			ospf6_decode_v3(const struct ospf6hdr op, const u_char dataend)
472			{
473			const rtrid_t *ap;
474			const struct lsr *lsrp;
475			const struct lsa_hdr *lshp;
476			const struct lsa *lsap;
477			char sep;
478			int i;
479
480			switch (op->ospf6_type) {
481
482			case OSPF_TYPE_UMD:
483			/*
484			* Rob Coltun's special monitoring packets;
485			* do nothing
486			*/
487			break;
488
489			case OSPF_TYPE_HELLO:
490			if (vflag) {
491			TCHECK(op->ospf6_hello.hello_deadint);
492			ospf6_print_bits(ospf6_option_bits,
493			ntohl(op->ospf6_hello.hello_options));
494			printf(" ifid %s pri %d int %d dead %u",
495			ipaddr_string(&op->ospf6_hello.hello_ifid),
496			op->ospf6_hello.hello_priority,
497			ntohs(op->ospf6_hello.hello_helloint),
498			ntohs(op->ospf6_hello.hello_deadint));
499			}
500			TCHECK(op->ospf6_hello.hello_dr);
501			if (op->ospf6_hello.hello_dr != 0)
502			printf(" dr %s",
503			ipaddr_string(&op->ospf6_hello.hello_dr));
504			TCHECK(op->ospf6_hello.hello_bdr);
505			if (op->ospf6_hello.hello_bdr != 0)
506			printf(" bdr %s",
507			ipaddr_string(&op->ospf6_hello.hello_bdr));
508			if (vflag) {
509			printf(" nbrs");
510			ap = op->ospf6_hello.hello_neighbor;
511			while ((u_char *)ap < dataend) {
512			TCHECK(*ap);
513			printf(" %s", ipaddr_string(ap));
514			++ap;
515			}
516			}
517			break; /* HELLO */
518
519			case OSPF_TYPE_DB:
520			TCHECK(op->ospf6_db.db_options);
521			ospf6_print_bits(ospf6_option_bits,
522			ntohl(op->ospf6_db.db_options));
523			sep = ' ';
524			TCHECK(op->ospf6_db.db_flags);
525			if (op->ospf6_db.db_flags & OSPF6_DB_INIT) {
526			printf("%cI", sep);
527			sep = '/';
528			}
529			if (op->ospf6_db.db_flags & OSPF6_DB_MORE) {
530			printf("%cM", sep);
531			sep = '/';
532			}
533			if (op->ospf6_db.db_flags & OSPF6_DB_MASTER) {
534			printf("%cMS", sep);
535			sep = '/';
536			}
537			TCHECK(op->ospf6_db.db_seq);
538			printf(" mtu %u S %X", ntohs(op->ospf6_db.db_mtu),
539			(u_int32_t)ntohl(op->ospf6_db.db_seq));
540
541			if (vflag) {
542			/* Print all the LS adv's */
543			lshp = op->ospf6_db.db_lshdr;
544
545			while (!ospf6_print_lshdr(lshp)) {
546			/* { (ctags) */
547			printf(" }");
548			++lshp;
549			}
550			}
551			break;
552
553			case OSPF_TYPE_LSR:
554			if (vflag) {
555			lsrp = op->ospf6_lsr;
556			while ((u_char *)lsrp < dataend) {
557			TCHECK(*lsrp);
558			printf(" {"); /* } (ctags) */
559			ospf6_print_ls_type(ntohs(lsrp->ls_type),
560			&lsrp->ls_stateid,
561			&lsrp->ls_router,
562			"LinkStateType %d");
563			/* { (ctags) */
564			printf(" }");
565			++lsrp;
566			}
567			}
568			break;
569
570			case OSPF_TYPE_LSU:
571			if (vflag) {
572			lsap = op->ospf6_lsu.lsu_lsa;
573			TCHECK(op->ospf6_lsu.lsu_count);
574			i = ntohl(op->ospf6_lsu.lsu_count);
575			while (i--) {
576			if (ospf6_print_lsa(lsap))
577			goto trunc;
578			lsap = (struct lsa )((u_char )lsap +
579			ntohs(lsap->ls_hdr.ls_length));
580			}
581			}
582			break;
583
584
585			case OSPF_TYPE_LSA:
586			if (vflag) {
587			lshp = op->ospf6_lsa.lsa_lshdr;
588
589			while (!ospf6_print_lshdr(lshp)) {
590			/* { (ctags) */
591			printf(" }");
592			++lshp;
593			}
594			}
595			break;
596
597			default:
598			printf("v3 type %d", op->ospf6_type);
599			break;
600			}
601			return (0);
602			trunc:
603			return (1);
604			}
605
606			void
607			ospf6_print(const u_char *bp, u_int length)
608			{
609			const struct ospf6hdr *op;
610			const u_char *dataend;
611			const char *cp;
612
613			op = (struct ospf6hdr *)bp;
614
615			/* If the type is valid translate it, or just print the type */
616			/* value. If it's not valid, say so and return */
617			TCHECK(op->ospf6_type);
618			cp = tok2str(type2str, "type%d", op->ospf6_type);
619			printf(" OSPFv%d-%s %d:", op->ospf6_version, cp, length);
620			if (*cp == 't')
621			return;
622
623			TCHECK(op->ospf6_len);
624			if (length != ntohs(op->ospf6_len)) {
625			printf(" [len %d]", ntohs(op->ospf6_len));
626			return;
627			}
628			dataend = bp + length;
629
630			TCHECK(op->ospf6_routerid);
631			printf(" rtrid %s", ipaddr_string(&op->ospf6_routerid));
632
633			TCHECK(op->ospf6_areaid);
634			if (op->ospf6_areaid != 0)
635			printf(" area %s", ipaddr_string(&op->ospf6_areaid));
636			else
637			printf(" backbone");
638			TCHECK(op->ospf6_instanceid);
639			if (op->ospf6_instanceid)
640			printf(" instance %u", op->ospf6_instanceid);
641
642			/* Do rest according to version. */
643			switch (op->ospf6_version) {
644
645			case 3:
646			/* ospf version 3 */
647			if (ospf6_decode_v3(op, dataend))
648			goto trunc;
649			break;
650
651			default:
652			printf(" ospf [version %d]", op->ospf6_version);
653			break;
654			} /* end switch on version */
655
656			return;
657			trunc:
658			fputs(tstr, stdout);
659			}
660
661			#endif /* INET6 */