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-rw-r--r--freebsd/contrib/tcpdump/print-ospf6.c646
1 files changed, 646 insertions, 0 deletions
diff --git a/freebsd/contrib/tcpdump/print-ospf6.c b/freebsd/contrib/tcpdump/print-ospf6.c
new file mode 100644
index 00000000..419cf705
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-ospf6.c
@@ -0,0 +1,646 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * 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)
+ */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-ospf6.c,v 1.15 2006-09-13 06:31:11 guy Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+#include "ospf.h"
+#include "ospf6.h"
+
+static const struct tok ospf6_option_values[] = {
+ { OSPF6_OPTION_V6, "V6" },
+ { OSPF6_OPTION_E, "External" },
+ { OSPF6_OPTION_MC, "Multicast" },
+ { OSPF6_OPTION_N, "NSSA" },
+ { OSPF6_OPTION_R, "Router" },
+ { OSPF6_OPTION_DC, "Demand Circuit" },
+ { 0, NULL }
+};
+
+static const struct tok ospf6_rla_flag_values[] = {
+ { RLA_FLAG_B, "ABR" },
+ { RLA_FLAG_E, "External" },
+ { RLA_FLAG_V, "Virtual-Link Endpoint" },
+ { RLA_FLAG_W, "Wildcard Receiver" },
+ { RLA_FLAG_N, "NSSA Translator" },
+ { 0, NULL }
+};
+
+static const struct tok ospf6_asla_flag_values[] = {
+ { ASLA_FLAG_EXTERNAL, "External Type 2" },
+ { ASLA_FLAG_FWDADDR, "Fforwarding" },
+ { ASLA_FLAG_ROUTETAG, "Tag" },
+ { 0, NULL }
+};
+
+static struct tok ospf6_type_values[] = {
+ { OSPF_TYPE_HELLO, "Hello" },
+ { OSPF_TYPE_DD, "Database Description" },
+ { OSPF_TYPE_LS_REQ, "LS-Request" },
+ { OSPF_TYPE_LS_UPDATE, "LS-Update" },
+ { OSPF_TYPE_LS_ACK, "LS-Ack" },
+ { 0, NULL }
+};
+
+static struct tok ospf6_lsa_values[] = {
+ { LS_TYPE_ROUTER, "Router" },
+ { LS_TYPE_NETWORK, "Network" },
+ { LS_TYPE_INTER_AP, "Inter-Area Prefix" },
+ { LS_TYPE_INTER_AR, "Inter-Area Router" },
+ { LS_TYPE_ASE, "External" },
+ { LS_TYPE_GROUP, "Multicast Group" },
+ { LS_TYPE_NSSA, "NSSA" },
+ { LS_TYPE_LINK, "Link" },
+ { LS_TYPE_INTRA_AP, "Intra-Area Prefix" },
+ { LS_TYPE_INTRA_ATE, "Intra-Area TE" },
+ { LS_TYPE_GRACE, "Grace" },
+ { 0, NULL }
+};
+
+static struct tok ospf6_ls_scope_values[] = {
+ { LS_SCOPE_LINKLOCAL, "Link Local" },
+ { LS_SCOPE_AREA, "Area Local" },
+ { LS_SCOPE_AS, "Domain Wide" },
+ { 0, NULL }
+};
+
+static struct tok ospf6_dd_flag_values[] = {
+ { OSPF6_DB_INIT, "Init" },
+ { OSPF6_DB_MORE, "More" },
+ { OSPF6_DB_MASTER, "Master" },
+ { 0, NULL }
+};
+
+static struct tok ospf6_lsa_prefix_option_values[] = {
+ { LSA_PREFIX_OPT_NU, "No Unicast" },
+ { LSA_PREFIX_OPT_LA, "Local address" },
+ { LSA_PREFIX_OPT_MC, "Multicast" },
+ { LSA_PREFIX_OPT_P, "Propagate" },
+ { LSA_PREFIX_OPT_DN, "Down" },
+ { 0, NULL }
+};
+
+static char tstr[] = " [|ospf3]";
+
+#ifdef WIN32
+#define inline __inline
+#endif /* WIN32 */
+
+/* Forwards */
+static void ospf6_print_ls_type(u_int, const rtrid_t *);
+static int ospf6_print_lshdr(const struct lsa6_hdr *);
+static int ospf6_print_lsa(const struct lsa6 *);
+static int ospf6_decode_v3(const struct ospf6hdr *, const u_char *);
+
+
+static void
+ospf6_print_ls_type(register u_int ls_type, register const rtrid_t *ls_stateid)
+{
+ printf("\n\t %s LSA (%d), %s Scope%s, LSA-ID %s",
+ tok2str(ospf6_lsa_values, "Unknown", ls_type & LS_TYPE_MASK),
+ ls_type & LS_TYPE_MASK,
+ tok2str(ospf6_ls_scope_values, "Unknown", ls_type & LS_SCOPE_MASK),
+ ls_type &0x8000 ? ", transitive" : "", /* U-bit */
+ ipaddr_string(ls_stateid));
+}
+
+static int
+ospf6_print_lshdr(register const struct lsa6_hdr *lshp)
+{
+
+ TCHECK(lshp->ls_type);
+ TCHECK(lshp->ls_seq);
+
+ printf("\n\t Advertising Router %s, seq 0x%08x, age %us, length %u",
+ ipaddr_string(&lshp->ls_router),
+ EXTRACT_32BITS(&lshp->ls_seq),
+ EXTRACT_16BITS(&lshp->ls_age),
+ EXTRACT_16BITS(&lshp->ls_length)-(u_int)sizeof(struct lsa6_hdr));
+
+ ospf6_print_ls_type(EXTRACT_16BITS(&lshp->ls_type), &lshp->ls_stateid);
+
+ return (0);
+trunc:
+ return (1);
+}
+
+static int
+ospf6_print_lsaprefix(const u_int8_t *tptr, u_int lsa_length)
+{
+ const struct lsa6_prefix *lsapp = (struct lsa6_prefix *)tptr;
+ u_int wordlen;
+ struct in6_addr prefix;
+
+ if (lsa_length < sizeof (*lsapp) - 4)
+ goto trunc;
+ lsa_length -= sizeof (*lsapp) - 4;
+ TCHECK2(*lsapp, sizeof (*lsapp) - 4);
+ wordlen = (lsapp->lsa_p_len + 31) / 32;
+ if (wordlen * 4 > sizeof(struct in6_addr)) {
+ printf(" bogus prefixlen /%d", lsapp->lsa_p_len);
+ goto trunc;
+ }
+ if (lsa_length < wordlen * 4)
+ goto trunc;
+ lsa_length -= wordlen * 4;
+ TCHECK2(lsapp->lsa_p_prefix, wordlen * 4);
+ memset(&prefix, 0, sizeof(prefix));
+ memcpy(&prefix, lsapp->lsa_p_prefix, wordlen * 4);
+ printf("\n\t\t%s/%d", ip6addr_string(&prefix),
+ lsapp->lsa_p_len);
+ if (lsapp->lsa_p_opt) {
+ printf(", Options [%s]",
+ bittok2str(ospf6_lsa_prefix_option_values,
+ "none", lsapp->lsa_p_opt));
+ }
+ printf(", metric %u", EXTRACT_16BITS(&lsapp->lsa_p_metric));
+ return sizeof(*lsapp) - 4 + wordlen * 4;
+
+trunc:
+ return -1;
+}
+
+
+/*
+ * Print a single link state advertisement. If truncated return 1, else 0.
+ */
+static int
+ospf6_print_lsa(register const struct lsa6 *lsap)
+{
+ register const struct rlalink6 *rlp;
+#if 0
+ register const struct tos_metric *tosp;
+#endif
+ register const rtrid_t *ap;
+#if 0
+ register const struct aslametric *almp;
+ register const struct mcla *mcp;
+#endif
+ register const struct llsa *llsap;
+ register const struct lsa6_prefix *lsapp;
+#if 0
+ register const u_int32_t *lp;
+#endif
+ register u_int prefixes;
+ register int bytelen;
+ register u_int length, lsa_length;
+ u_int32_t flags32;
+ const u_int8_t *tptr;
+
+ if (ospf6_print_lshdr(&lsap->ls_hdr))
+ return (1);
+ TCHECK(lsap->ls_hdr.ls_length);
+ length = EXTRACT_16BITS(&lsap->ls_hdr.ls_length);
+
+ /*
+ * The LSA length includes the length of the header;
+ * it must have a value that's at least that length.
+ * If it does, find the length of what follows the
+ * header.
+ */
+ if (length < sizeof(struct lsa6_hdr))
+ return (1);
+ lsa_length = length - sizeof(struct lsa6_hdr);
+ tptr = (u_int8_t *)lsap+sizeof(struct lsa6_hdr);
+
+ switch (EXTRACT_16BITS(&lsap->ls_hdr.ls_type)) {
+ case LS_TYPE_ROUTER | LS_SCOPE_AREA:
+ if (lsa_length < sizeof (lsap->lsa_un.un_rla.rla_options))
+ return (1);
+ lsa_length -= sizeof (lsap->lsa_un.un_rla.rla_options);
+ TCHECK(lsap->lsa_un.un_rla.rla_options);
+ printf("\n\t Options [%s]",
+ bittok2str(ospf6_option_values, "none",
+ EXTRACT_32BITS(&lsap->lsa_un.un_rla.rla_options)));
+ printf(", RLA-Flags [%s]",
+ bittok2str(ospf6_rla_flag_values, "none",
+ lsap->lsa_un.un_rla.rla_flags));
+
+ rlp = lsap->lsa_un.un_rla.rla_link;
+ while (lsa_length != 0) {
+ if (lsa_length < sizeof (*rlp))
+ return (1);
+ lsa_length -= sizeof (*rlp);
+ TCHECK(*rlp);
+ switch (rlp->link_type) {
+
+ case RLA_TYPE_VIRTUAL:
+ printf("\n\t Virtual Link: Neighbor Router-ID %s"
+ "\n\t Neighbor Interface-ID %s, Interface %s",
+ ipaddr_string(&rlp->link_nrtid),
+ ipaddr_string(&rlp->link_nifid),
+ ipaddr_string(&rlp->link_ifid));
+ break;
+
+ case RLA_TYPE_ROUTER:
+ printf("\n\t Neighbor Router-ID %s"
+ "\n\t Neighbor Interface-ID %s, Interface %s",
+ ipaddr_string(&rlp->link_nrtid),
+ ipaddr_string(&rlp->link_nifid),
+ ipaddr_string(&rlp->link_ifid));
+ break;
+
+ case RLA_TYPE_TRANSIT:
+ printf("\n\t Neighbor Network-ID %s"
+ "\n\t Neighbor Interface-ID %s, Interface %s",
+ ipaddr_string(&rlp->link_nrtid),
+ ipaddr_string(&rlp->link_nifid),
+ ipaddr_string(&rlp->link_ifid));
+ break;
+
+ default:
+ printf("\n\t Unknown Router Links Type 0x%02x",
+ rlp->link_type);
+ return (0);
+ }
+ printf(", metric %d", EXTRACT_16BITS(&rlp->link_metric));
+ rlp++;
+ }
+ break;
+
+ case LS_TYPE_NETWORK | LS_SCOPE_AREA:
+ if (lsa_length < sizeof (lsap->lsa_un.un_nla.nla_options))
+ return (1);
+ lsa_length -= sizeof (lsap->lsa_un.un_nla.nla_options);
+ TCHECK(lsap->lsa_un.un_nla.nla_options);
+ printf("\n\t Options [%s]",
+ bittok2str(ospf6_option_values, "none",
+ EXTRACT_32BITS(&lsap->lsa_un.un_nla.nla_options)));
+
+ printf("\n\t Connected Routers:");
+ ap = lsap->lsa_un.un_nla.nla_router;
+ while (lsa_length != 0) {
+ if (lsa_length < sizeof (*ap))
+ return (1);
+ lsa_length -= sizeof (*ap);
+ TCHECK(*ap);
+ printf("\n\t\t%s", ipaddr_string(ap));
+ ++ap;
+ }
+ break;
+
+ case LS_TYPE_INTER_AP | LS_SCOPE_AREA:
+ if (lsa_length < sizeof (lsap->lsa_un.un_inter_ap.inter_ap_metric))
+ return (1);
+ lsa_length -= sizeof (lsap->lsa_un.un_inter_ap.inter_ap_metric);
+ TCHECK(lsap->lsa_un.un_inter_ap.inter_ap_metric);
+ printf(", metric %u",
+ EXTRACT_32BITS(&lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC);
+
+ tptr = (u_int8_t *)lsap->lsa_un.un_inter_ap.inter_ap_prefix;
+ while (lsa_length != 0) {
+ bytelen = ospf6_print_lsaprefix(tptr, lsa_length);
+ if (bytelen < 0)
+ goto trunc;
+ lsa_length -= bytelen;
+ tptr += bytelen;
+ }
+ break;
+
+ case LS_TYPE_ASE | LS_SCOPE_AS:
+ if (lsa_length < sizeof (lsap->lsa_un.un_asla.asla_metric))
+ return (1);
+ lsa_length -= sizeof (lsap->lsa_un.un_asla.asla_metric);
+ TCHECK(lsap->lsa_un.un_asla.asla_metric);
+ flags32 = EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric);
+ printf("\n\t Flags [%s]",
+ bittok2str(ospf6_asla_flag_values, "none", flags32));
+ printf(" metric %u",
+ EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric) &
+ ASLA_MASK_METRIC);
+
+ tptr = (u_int8_t *)lsap->lsa_un.un_asla.asla_prefix;
+ lsapp = (struct lsa6_prefix *)tptr;
+ bytelen = ospf6_print_lsaprefix(tptr, lsa_length);
+ if (bytelen < 0)
+ goto trunc;
+ lsa_length -= bytelen;
+ tptr += bytelen;
+
+ if ((flags32 & ASLA_FLAG_FWDADDR) != 0) {
+ struct in6_addr *fwdaddr6;
+
+ fwdaddr6 = (struct in6_addr *)tptr;
+ if (lsa_length < sizeof (*fwdaddr6))
+ return (1);
+ lsa_length -= sizeof (*fwdaddr6);
+ TCHECK(*fwdaddr6);
+ printf(" forward %s",
+ ip6addr_string(fwdaddr6));
+ tptr += sizeof(*fwdaddr6);
+ }
+
+ if ((flags32 & ASLA_FLAG_ROUTETAG) != 0) {
+ if (lsa_length < sizeof (u_int32_t))
+ return (1);
+ lsa_length -= sizeof (u_int32_t);
+ TCHECK(*(u_int32_t *)tptr);
+ printf(" tag %s",
+ ipaddr_string((u_int32_t *)tptr));
+ tptr += sizeof(u_int32_t);
+ }
+
+ if (lsapp->lsa_p_metric) {
+ if (lsa_length < sizeof (u_int32_t))
+ return (1);
+ lsa_length -= sizeof (u_int32_t);
+ TCHECK(*(u_int32_t *)tptr);
+ printf(" RefLSID: %s",
+ ipaddr_string((u_int32_t *)tptr));
+ tptr += sizeof(u_int32_t);
+ }
+ break;
+
+ case LS_TYPE_LINK:
+ /* Link LSA */
+ llsap = &lsap->lsa_un.un_llsa;
+ if (lsa_length < sizeof (llsap->llsa_priandopt))
+ return (1);
+ lsa_length -= sizeof (llsap->llsa_priandopt);
+ TCHECK(llsap->llsa_priandopt);
+ printf("\n\t Options [%s]",
+ bittok2str(ospf6_option_values, "none",
+ EXTRACT_32BITS(&llsap->llsa_options)));
+
+ if (lsa_length < sizeof (llsap->llsa_lladdr) + sizeof (llsap->llsa_nprefix))
+ return (1);
+ lsa_length -= sizeof (llsap->llsa_lladdr) + sizeof (llsap->llsa_nprefix);
+ prefixes = EXTRACT_32BITS(&llsap->llsa_nprefix);
+ printf("\n\t Priority %d, Link-local address %s, Prefixes %d:",
+ llsap->llsa_priority,
+ ip6addr_string(&llsap->llsa_lladdr),
+ prefixes);
+
+ tptr = (u_int8_t *)llsap->llsa_prefix;
+ while (prefixes > 0) {
+ bytelen = ospf6_print_lsaprefix(tptr, lsa_length);
+ if (bytelen < 0)
+ goto trunc;
+ prefixes--;
+ lsa_length -= bytelen;
+ tptr += bytelen;
+ }
+ break;
+
+ case LS_TYPE_INTRA_AP | LS_SCOPE_AREA:
+ /* Intra-Area-Prefix LSA */
+ if (lsa_length < sizeof (lsap->lsa_un.un_intra_ap.intra_ap_rtid))
+ return (1);
+ lsa_length -= sizeof (lsap->lsa_un.un_intra_ap.intra_ap_rtid);
+ TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_rtid);
+ ospf6_print_ls_type(
+ EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_lstype),
+ &lsap->lsa_un.un_intra_ap.intra_ap_lsid);
+
+ if (lsa_length < sizeof (lsap->lsa_un.un_intra_ap.intra_ap_nprefix))
+ return (1);
+ lsa_length -= sizeof (lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
+ TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
+ prefixes = EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
+ printf("\n\t Prefixes %d:", prefixes);
+
+ tptr = (u_int8_t *)lsap->lsa_un.un_intra_ap.intra_ap_prefix;
+ while (prefixes > 0) {
+ bytelen = ospf6_print_lsaprefix(tptr, lsa_length);
+ if (bytelen < 0)
+ goto trunc;
+ prefixes--;
+ lsa_length -= bytelen;
+ tptr += bytelen;
+ }
+ break;
+
+ case LS_TYPE_GRACE | LS_SCOPE_LINKLOCAL:
+ if (ospf_print_grace_lsa(tptr, lsa_length) == -1) {
+ return 1;
+ }
+ break;
+
+ case LS_TYPE_INTRA_ATE | LS_SCOPE_LINKLOCAL:
+ if (ospf_print_te_lsa(tptr, lsa_length) == -1) {
+ return 1;
+ }
+ break;
+
+ default:
+ if(!print_unknown_data(tptr,
+ "\n\t ",
+ lsa_length)) {
+ return (1);
+ }
+ break;
+ }
+
+ return (0);
+trunc:
+ return (1);
+}
+
+static int
+ospf6_decode_v3(register const struct ospf6hdr *op,
+ register const u_char *dataend)
+{
+ register const rtrid_t *ap;
+ register const struct lsr6 *lsrp;
+ register const struct lsa6_hdr *lshp;
+ register const struct lsa6 *lsap;
+ register int i;
+
+ switch (op->ospf6_type) {
+
+ case OSPF_TYPE_HELLO:
+ printf("\n\tOptions [%s]",
+ bittok2str(ospf6_option_values, "none",
+ EXTRACT_32BITS(&op->ospf6_hello.hello_options)));
+
+ TCHECK(op->ospf6_hello.hello_deadint);
+ printf("\n\t Hello Timer %us, Dead Timer %us, Interface-ID %s, Priority %u",
+ EXTRACT_16BITS(&op->ospf6_hello.hello_helloint),
+ EXTRACT_16BITS(&op->ospf6_hello.hello_deadint),
+ ipaddr_string(&op->ospf6_hello.hello_ifid),
+ op->ospf6_hello.hello_priority);
+
+ TCHECK(op->ospf6_hello.hello_dr);
+ if (op->ospf6_hello.hello_dr != 0)
+ printf("\n\t Designated Router %s",
+ ipaddr_string(&op->ospf6_hello.hello_dr));
+ TCHECK(op->ospf6_hello.hello_bdr);
+ if (op->ospf6_hello.hello_bdr != 0)
+ printf(", Backup Designated Router %s",
+ ipaddr_string(&op->ospf6_hello.hello_bdr));
+ if (vflag) {
+ printf("\n\t Neighbor List:");
+ ap = op->ospf6_hello.hello_neighbor;
+ while ((u_char *)ap < dataend) {
+ TCHECK(*ap);
+ printf("\n\t %s", ipaddr_string(ap));
+ ++ap;
+ }
+ }
+ break; /* HELLO */
+
+ case OSPF_TYPE_DD:
+ TCHECK(op->ospf6_db.db_options);
+ printf("\n\tOptions [%s]",
+ bittok2str(ospf6_option_values, "none",
+ EXTRACT_32BITS(&op->ospf6_db.db_options)));
+ TCHECK(op->ospf6_db.db_flags);
+ printf(", DD Flags [%s]",
+ bittok2str(ospf6_dd_flag_values,"none",op->ospf6_db.db_flags));
+
+ TCHECK(op->ospf6_db.db_seq);
+ printf(", MTU %u, DD-Sequence 0x%08x",
+ EXTRACT_16BITS(&op->ospf6_db.db_mtu),
+ EXTRACT_32BITS(&op->ospf6_db.db_seq));
+
+ /* Print all the LS adv's */
+ lshp = op->ospf6_db.db_lshdr;
+ while (!ospf6_print_lshdr(lshp)) {
+ ++lshp;
+ }
+ break;
+
+ case OSPF_TYPE_LS_REQ:
+ if (vflag) {
+ lsrp = op->ospf6_lsr;
+ while ((u_char *)lsrp < dataend) {
+ TCHECK(*lsrp);
+ printf("\n\t Advertising Router %s",
+ ipaddr_string(&lsrp->ls_router));
+ ospf6_print_ls_type(EXTRACT_16BITS(&lsrp->ls_type),
+ &lsrp->ls_stateid);
+ ++lsrp;
+ }
+ }
+ break;
+
+ case OSPF_TYPE_LS_UPDATE:
+ if (vflag) {
+ lsap = op->ospf6_lsu.lsu_lsa;
+ TCHECK(op->ospf6_lsu.lsu_count);
+ i = EXTRACT_32BITS(&op->ospf6_lsu.lsu_count);
+ while (i--) {
+ if (ospf6_print_lsa(lsap))
+ goto trunc;
+ lsap = (struct lsa6 *)((u_char *)lsap +
+ EXTRACT_16BITS(&lsap->ls_hdr.ls_length));
+ }
+ }
+ break;
+
+
+ case OSPF_TYPE_LS_ACK:
+ if (vflag) {
+ lshp = op->ospf6_lsa.lsa_lshdr;
+
+ while (!ospf6_print_lshdr(lshp)) {
+ ++lshp;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+ return (0);
+trunc:
+ return (1);
+}
+
+void
+ospf6_print(register const u_char *bp, register u_int length)
+{
+ register const struct ospf6hdr *op;
+ register const u_char *dataend;
+ register 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(ospf6_type_values, "unknown LS-type", op->ospf6_type);
+ printf("OSPFv%u, %s, length %d", op->ospf6_version, cp, length);
+ if (*cp == 'u') {
+ return;
+ }
+
+ if(!vflag) { /* non verbose - so lets bail out here */
+ return;
+ }
+
+ TCHECK(op->ospf6_len);
+ if (length != EXTRACT_16BITS(&op->ospf6_len)) {
+ printf(" [len %d]", EXTRACT_16BITS(&op->ospf6_len));
+ return;
+ }
+ dataend = bp + length;
+
+ /* Print the routerid if it is not the same as the source */
+ TCHECK(op->ospf6_routerid);
+ printf("\n\tRouter-ID %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 Area");
+ 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);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 17:02:24 +0000