Adding upstream version 4.99.4.upstream/4.99.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1178 insertions, 0 deletions

diff --git a/print-ospf.c b/print-ospf.c
new file mode 100644
index 0000000..e6bebed
--- /dev/null
+++ b/print-ospf.c
@@ -0,0 +1,1178 @@
+/*
+ * 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)
+ */
+
+/* \summary: Open Shortest Path First (OSPF) printer */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#include "netdissect.h"
+#include "addrtoname.h"
+#include "extract.h"
+#include "gmpls.h"
+
+#include "ospf.h"
+
+
+static const struct tok ospf_option_values[] = {
+	{ OSPF_OPTION_MT,	"MultiTopology" }, /* draft-ietf-ospf-mt-09 */
+	{ OSPF_OPTION_E,	"External" },
+	{ OSPF_OPTION_MC,	"Multicast" },
+	{ OSPF_OPTION_NP,	"NSSA" },
+	{ OSPF_OPTION_L,	"LLS" },
+	{ OSPF_OPTION_DC,	"Demand Circuit" },
+	{ OSPF_OPTION_O,	"Opaque" },
+	{ OSPF_OPTION_DN,	"Up/Down" },
+	{ 0,			NULL }
+};
+
+static const struct tok ospf_authtype_values[] = {
+	{ OSPF_AUTH_NONE,	"none" },
+	{ OSPF_AUTH_SIMPLE,	"simple" },
+	{ OSPF_AUTH_MD5,	"MD5" },
+	{ 0,			NULL }
+};
+
+static const struct tok ospf_rla_flag_values[] = {
+	{ RLA_FLAG_B,		"ABR" },
+	{ RLA_FLAG_E,		"ASBR" },
+	{ RLA_FLAG_V,		"Virtual" },
+	{ RLA_FLAG_W,		"Wildcard" },
+	{ RLA_FLAG_NT,		"Nt" },
+	{ RLA_FLAG_H,		"Host" },
+	{ 0,			NULL }
+};
+
+static const struct tok type2str[] = {
+	{ 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 const struct tok lsa_values[] = {
+	{ LS_TYPE_ROUTER,       "Router" },
+	{ LS_TYPE_NETWORK,      "Network" },
+	{ LS_TYPE_SUM_IP,       "Summary" },
+	{ LS_TYPE_SUM_ABR,      "ASBR Summary" },
+	{ LS_TYPE_ASE,          "External" },
+	{ LS_TYPE_GROUP,        "Multicast Group" },
+	{ LS_TYPE_NSSA,         "NSSA" },
+	{ LS_TYPE_OPAQUE_LL,    "Link Local Opaque" },
+	{ LS_TYPE_OPAQUE_AL,    "Area Local Opaque" },
+	{ LS_TYPE_OPAQUE_DW,    "Domain Wide Opaque" },
+	{ 0,			NULL }
+};
+
+static const struct tok ospf_dd_flag_values[] = {
+	{ OSPF_DB_INIT,	        "Init" },
+	{ OSPF_DB_MORE,	        "More" },
+	{ OSPF_DB_MASTER,	"Master" },
+    { OSPF_DB_RESYNC,	"OOBResync" },
+	{ 0,			NULL }
+};
+
+static const struct tok lsa_opaque_values[] = {
+	{ LS_OPAQUE_TYPE_TE,    "Traffic Engineering" },
+	{ LS_OPAQUE_TYPE_GRACE, "Graceful restart" },
+	{ LS_OPAQUE_TYPE_RI,    "Router Information" },
+	{ 0,			NULL }
+};
+
+static const struct tok lsa_opaque_te_tlv_values[] = {
+	{ LS_OPAQUE_TE_TLV_ROUTER, "Router Address" },
+	{ LS_OPAQUE_TE_TLV_LINK,   "Link" },
+	{ 0,			NULL }
+};
+
+static const struct tok lsa_opaque_te_link_tlv_subtlv_values[] = {
+	{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE,            "Link Type" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID,              "Link ID" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP,             "Local Interface IP address" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP,            "Remote Interface IP address" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC,            "Traffic Engineering Metric" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW,               "Maximum Bandwidth" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW,           "Maximum Reservable Bandwidth" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW,             "Unreserved Bandwidth" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP,          "Administrative Group" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID, "Link Local/Remote Identifier" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE, "Link Protection Type" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR,    "Interface Switching Capability" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP,    "Shared Risk Link Group" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS,       "Bandwidth Constraints" },
+	{ 0,			NULL }
+};
+
+static const struct tok lsa_opaque_grace_tlv_values[] = {
+	{ LS_OPAQUE_GRACE_TLV_PERIOD,             "Grace Period" },
+	{ LS_OPAQUE_GRACE_TLV_REASON,             "Graceful restart Reason" },
+	{ LS_OPAQUE_GRACE_TLV_INT_ADDRESS,        "IPv4 interface address" },
+	{ 0,		        NULL }
+};
+
+static const struct tok lsa_opaque_grace_tlv_reason_values[] = {
+	{ LS_OPAQUE_GRACE_TLV_REASON_UNKNOWN,     "Unknown" },
+	{ LS_OPAQUE_GRACE_TLV_REASON_SW_RESTART,  "Software Restart" },
+	{ LS_OPAQUE_GRACE_TLV_REASON_SW_UPGRADE,  "Software Reload/Upgrade" },
+	{ LS_OPAQUE_GRACE_TLV_REASON_CP_SWITCH,   "Control Processor Switch" },
+	{ 0,		        NULL }
+};
+
+static const struct tok lsa_opaque_te_tlv_link_type_sub_tlv_values[] = {
+	{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_PTP, "Point-to-point" },
+	{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_MA,  "Multi-Access" },
+	{ 0,			NULL }
+};
+
+static const struct tok lsa_opaque_ri_tlv_values[] = {
+	{ LS_OPAQUE_RI_TLV_CAP, "Router Capabilities" },
+	{ 0,		        NULL }
+};
+
+static const struct tok lsa_opaque_ri_tlv_cap_values[] = {
+	{ 1, "Reserved" },
+	{ 2, "Reserved" },
+	{ 4, "Reserved" },
+	{ 8, "Reserved" },
+	{ 16, "graceful restart capable" },
+	{ 32, "graceful restart helper" },
+	{ 64, "Stub router support" },
+	{ 128, "Traffic engineering" },
+	{ 256, "p2p over LAN" },
+	{ 512, "path computation server" },
+	{ 0,		        NULL }
+};
+
+static const struct tok ospf_lls_tlv_values[] = {
+	{ OSPF_LLS_EO,	"Extended Options" },
+	{ OSPF_LLS_MD5,	"MD5 Authentication" },
+	{ 0,	NULL }
+};
+
+static const struct tok ospf_lls_eo_options[] = {
+	{ OSPF_LLS_EO_LR,	"LSDB resync" },
+	{ OSPF_LLS_EO_RS,	"Restart" },
+	{ 0,	NULL }
+};
+
+int
+ospf_grace_lsa_print(netdissect_options *ndo,
+                     const u_char *tptr, u_int ls_length)
+{
+    u_int tlv_type, tlv_length;
+
+
+    while (ls_length > 0) {
+        ND_TCHECK_4(tptr);
+        if (ls_length < 4) {
+            ND_PRINT("\n\t    Remaining LS length %u < 4", ls_length);
+            return -1;
+        }
+        tlv_type = GET_BE_U_2(tptr);
+        tlv_length = GET_BE_U_2(tptr + 2);
+        tptr+=4;
+        ls_length-=4;
+
+        ND_PRINT("\n\t    %s TLV (%u), length %u, value: ",
+               tok2str(lsa_opaque_grace_tlv_values,"unknown",tlv_type),
+               tlv_type,
+               tlv_length);
+
+        if (tlv_length > ls_length) {
+            ND_PRINT("\n\t    Bogus length %u > %u", tlv_length,
+                   ls_length);
+            return -1;
+        }
+
+        /* Infinite loop protection. */
+        if (tlv_type == 0 || tlv_length ==0) {
+            return -1;
+        }
+
+        ND_TCHECK_LEN(tptr, tlv_length);
+        switch(tlv_type) {
+
+        case LS_OPAQUE_GRACE_TLV_PERIOD:
+            if (tlv_length != 4) {
+                ND_PRINT("\n\t    Bogus length %u != 4", tlv_length);
+                return -1;
+            }
+            ND_PRINT("%us", GET_BE_U_4(tptr));
+            break;
+
+        case LS_OPAQUE_GRACE_TLV_REASON:
+            if (tlv_length != 1) {
+                ND_PRINT("\n\t    Bogus length %u != 1", tlv_length);
+                return -1;
+            }
+            ND_PRINT("%s (%u)",
+                   tok2str(lsa_opaque_grace_tlv_reason_values, "Unknown", GET_U_1(tptr)),
+                   GET_U_1(tptr));
+            break;
+
+        case LS_OPAQUE_GRACE_TLV_INT_ADDRESS:
+            if (tlv_length != 4) {
+                ND_PRINT("\n\t    Bogus length %u != 4", tlv_length);
+                return -1;
+            }
+            ND_PRINT("%s", GET_IPADDR_STRING(tptr));
+            break;
+
+        default:
+            if (ndo->ndo_vflag <= 1) {
+                if (!print_unknown_data(ndo, tptr, "\n\t      ", tlv_length))
+                    return -1;
+            }
+            break;
+
+        }
+        /* in OSPF everything has to be 32-bit aligned, including TLVs */
+        if (tlv_length%4 != 0)
+            tlv_length+=4-(tlv_length%4);
+        ls_length-=tlv_length;
+        tptr+=tlv_length;
+    }
+
+    return 0;
+trunc:
+    return -1;
+}
+
+int
+ospf_te_lsa_print(netdissect_options *ndo,
+                  const u_char *tptr, u_int ls_length)
+{
+    u_int tlv_type, tlv_length, subtlv_type, subtlv_length;
+    u_int priority_level, te_class, count_srlg;
+    union { /* int to float conversion buffer for several subTLVs */
+        float f;
+        uint32_t i;
+    } bw;
+
+    while (ls_length != 0) {
+        ND_TCHECK_4(tptr);
+        if (ls_length < 4) {
+            ND_PRINT("\n\t    Remaining LS length %u < 4", ls_length);
+            return -1;
+        }
+        tlv_type = GET_BE_U_2(tptr);
+        tlv_length = GET_BE_U_2(tptr + 2);
+        tptr+=4;
+        ls_length-=4;
+
+        ND_PRINT("\n\t    %s TLV (%u), length: %u",
+               tok2str(lsa_opaque_te_tlv_values,"unknown",tlv_type),
+               tlv_type,
+               tlv_length);
+
+        if (tlv_length > ls_length) {
+            ND_PRINT("\n\t    Bogus length %u > %u", tlv_length,
+                   ls_length);
+            return -1;
+        }
+
+        /* Infinite loop protection. */
+        if (tlv_type == 0 || tlv_length ==0) {
+            return -1;
+        }
+
+        switch(tlv_type) {
+        case LS_OPAQUE_TE_TLV_LINK:
+            while (tlv_length != 0) {
+                if (tlv_length < 4) {
+                    ND_PRINT("\n\t    Remaining TLV length %u < 4",
+                           tlv_length);
+                    return -1;
+                }
+                subtlv_type = GET_BE_U_2(tptr);
+                subtlv_length = GET_BE_U_2(tptr + 2);
+                tptr+=4;
+                tlv_length-=4;
+
+		/* Infinite loop protection */
+		if (subtlv_type == 0 || subtlv_length == 0)
+		    goto invalid;
+
+                ND_PRINT("\n\t      %s subTLV (%u), length: %u",
+                       tok2str(lsa_opaque_te_link_tlv_subtlv_values,"unknown",subtlv_type),
+                       subtlv_type,
+                       subtlv_length);
+
+                if (tlv_length < subtlv_length) {
+                    ND_PRINT("\n\t    Remaining TLV length %u < %u",
+                           tlv_length + 4, subtlv_length + 4);
+                    return -1;
+                }
+                ND_TCHECK_LEN(tptr, subtlv_length);
+                switch(subtlv_type) {
+                case LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP:
+		    if (subtlv_length != 4) {
+			ND_PRINT(" != 4");
+			goto invalid;
+		    }
+                    ND_PRINT(", 0x%08x", GET_BE_U_4(tptr));
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID:
+                case LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID:
+		    if (subtlv_length != 4 && subtlv_length != 8) {
+			ND_PRINT(" != 4 && != 8");
+			goto invalid;
+		    }
+                    ND_PRINT(", %s (0x%08x)",
+                           GET_IPADDR_STRING(tptr),
+                           GET_BE_U_4(tptr));
+                    if (subtlv_length == 8) /* rfc4203 */
+                        ND_PRINT(", %s (0x%08x)",
+                               GET_IPADDR_STRING(tptr+4),
+                               GET_BE_U_4(tptr + 4));
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP:
+                case LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP:
+		    if (subtlv_length != 4) {
+			ND_PRINT(" != 4");
+			goto invalid;
+		    }
+                    ND_PRINT(", %s", GET_IPADDR_STRING(tptr));
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW:
+                case LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW:
+		    if (subtlv_length != 4) {
+			ND_PRINT(" != 4");
+			goto invalid;
+		    }
+                    bw.i = GET_BE_U_4(tptr);
+                    ND_PRINT(", %.3f Mbps", bw.f * 8 / 1000000);
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW:
+		    if (subtlv_length != 32) {
+			ND_PRINT(" != 32");
+			goto invalid;
+		    }
+                    for (te_class = 0; te_class < 8; te_class++) {
+                        bw.i = GET_BE_U_4(tptr + te_class * 4);
+                        ND_PRINT("\n\t\tTE-Class %u: %.3f Mbps",
+                               te_class,
+                               bw.f * 8 / 1000000);
+                    }
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS:
+		    if (subtlv_length < 4) {
+			ND_PRINT(" < 4");
+			goto invalid;
+		    }
+		    /* BC Model Id (1 octet) + Reserved (3 octets) */
+                    ND_PRINT("\n\t\tBandwidth Constraints Model ID: %s (%u)",
+                           tok2str(diffserv_te_bc_values, "unknown", GET_U_1(tptr)),
+                           GET_U_1(tptr));
+		    if (subtlv_length % 4 != 0) {
+			ND_PRINT("\n\t\tlength %u != N x 4", subtlv_length);
+			goto invalid;
+		    }
+		    if (subtlv_length > 36) {
+			ND_PRINT("\n\t\tlength %u > 36", subtlv_length);
+			goto invalid;
+		    }
+                    /* decode BCs until the subTLV ends */
+                    for (te_class = 0; te_class < (subtlv_length-4)/4; te_class++) {
+                        bw.i = GET_BE_U_4(tptr + 4 + te_class * 4);
+                        ND_PRINT("\n\t\t  Bandwidth constraint CT%u: %.3f Mbps",
+                               te_class,
+                               bw.f * 8 / 1000000);
+                    }
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC:
+		    if (subtlv_length != 4) {
+			ND_PRINT(" != 4");
+			goto invalid;
+		    }
+                    ND_PRINT(", Metric %u", GET_BE_U_4(tptr));
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE:
+		    /* Protection Cap (1 octet) + Reserved ((3 octets) */
+		    if (subtlv_length != 4) {
+			ND_PRINT(" != 4");
+			goto invalid;
+		    }
+                    ND_PRINT(", %s",
+                             bittok2str(gmpls_link_prot_values, "none", GET_U_1(tptr)));
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR:
+		    if (subtlv_length < 36) {
+			ND_PRINT(" < 36");
+			goto invalid;
+		    }
+		    /* Switching Cap (1 octet) + Encoding (1) +  Reserved (2) */
+                    ND_PRINT("\n\t\tInterface Switching Capability: %s",
+                           tok2str(gmpls_switch_cap_values, "Unknown", GET_U_1((tptr))));
+                    ND_PRINT("\n\t\tLSP Encoding: %s\n\t\tMax LSP Bandwidth:",
+                           tok2str(gmpls_encoding_values, "Unknown", GET_U_1((tptr + 1))));
+                    for (priority_level = 0; priority_level < 8; priority_level++) {
+                        bw.i = GET_BE_U_4(tptr + 4 + (priority_level * 4));
+                        ND_PRINT("\n\t\t  priority level %u: %.3f Mbps",
+                               priority_level,
+                               bw.f * 8 / 1000000);
+                    }
+                    break;
+                case LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE:
+		    if (subtlv_length != 1) {
+			ND_PRINT(" != 1");
+			goto invalid;
+		    }
+                    ND_PRINT(", %s (%u)",
+                           tok2str(lsa_opaque_te_tlv_link_type_sub_tlv_values,"unknown",GET_U_1(tptr)),
+                           GET_U_1(tptr));
+                    break;
+
+                case LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP:
+		    if (subtlv_length % 4 != 0) {
+			ND_PRINT(" != N x 4");
+			goto invalid;
+		    }
+                    count_srlg = subtlv_length / 4;
+                    if (count_srlg != 0)
+                        ND_PRINT("\n\t\t  Shared risk group: ");
+                    while (count_srlg > 0) {
+                        bw.i = GET_BE_U_4(tptr);
+                        ND_PRINT("%u", bw.i);
+                        tptr+=4;
+                        count_srlg--;
+                        if (count_srlg > 0)
+                            ND_PRINT(", ");
+                    }
+                    break;
+
+                default:
+                    if (ndo->ndo_vflag <= 1) {
+                        if (!print_unknown_data(ndo, tptr, "\n\t\t", subtlv_length))
+                            return -1;
+                    }
+                    break;
+                }
+                /* in OSPF everything has to be 32-bit aligned, including subTLVs */
+                if (subtlv_length%4 != 0)
+                    subtlv_length+=4-(subtlv_length%4);
+
+                if (tlv_length < subtlv_length) {
+                    ND_PRINT("\n\t    Remaining TLV length %u < %u",
+                           tlv_length + 4, subtlv_length + 4);
+                    return -1;
+                }
+                tlv_length-=subtlv_length;
+                tptr+=subtlv_length;
+
+            }
+            break;
+
+        case LS_OPAQUE_TE_TLV_ROUTER:
+            if (tlv_length < 4) {
+                ND_PRINT("\n\t    TLV length %u < 4", tlv_length);
+                return -1;
+            }
+            ND_PRINT(", %s", GET_IPADDR_STRING(tptr));
+            break;
+
+        default:
+            if (ndo->ndo_vflag <= 1) {
+                if (!print_unknown_data(ndo, tptr, "\n\t      ", tlv_length))
+                    return -1;
+            }
+            break;
+        }
+        /* in OSPF everything has to be 32-bit aligned, including TLVs */
+        if (tlv_length%4 != 0)
+            tlv_length+=4-(tlv_length%4);
+        if (tlv_length > ls_length) {
+            ND_PRINT("\n\t    Bogus padded length %u > %u", tlv_length,
+                   ls_length);
+            return -1;
+        }
+        ls_length-=tlv_length;
+        tptr+=tlv_length;
+    }
+    return 0;
+trunc:
+    return -1;
+invalid:
+    nd_print_invalid(ndo);
+    return -1;
+}
+
+static int
+ospf_print_lshdr(netdissect_options *ndo,
+                 const struct lsa_hdr *lshp)
+{
+        u_int ls_type;
+        u_int ls_length;
+
+        ls_length = GET_BE_U_2(lshp->ls_length);
+        if (ls_length < sizeof(struct lsa_hdr)) {
+                ND_PRINT("\n\t    Bogus length %u < header (%zu)", ls_length,
+                    sizeof(struct lsa_hdr));
+                return(-1);
+        }
+        ND_PRINT("\n\t  Advertising Router %s, seq 0x%08x, age %us, length %zu",
+                  GET_IPADDR_STRING(lshp->ls_router),
+                  GET_BE_U_4(lshp->ls_seq),
+                  GET_BE_U_2(lshp->ls_age),
+                  ls_length - sizeof(struct lsa_hdr));
+        ls_type = GET_U_1(lshp->ls_type);
+        switch (ls_type) {
+        /* the LSA header for opaque LSAs was slightly changed */
+        case LS_TYPE_OPAQUE_LL:
+        case LS_TYPE_OPAQUE_AL:
+        case LS_TYPE_OPAQUE_DW:
+            ND_PRINT("\n\t    %s LSA (%u), Opaque-Type %s LSA (%u), Opaque-ID %u",
+                   tok2str(lsa_values,"unknown",ls_type),
+                   ls_type,
+
+		   tok2str(lsa_opaque_values,
+			   "unknown",
+			   GET_U_1(lshp->un_lsa_id.opaque_field.opaque_type)),
+		   GET_U_1(lshp->un_lsa_id.opaque_field.opaque_type),
+		   GET_BE_U_3(lshp->un_lsa_id.opaque_field.opaque_id)
+
+                   );
+            break;
+
+        /* all other LSA types use regular style LSA headers */
+        default:
+            ND_PRINT("\n\t    %s LSA (%u), LSA-ID: %s",
+                   tok2str(lsa_values,"unknown",ls_type),
+                   ls_type,
+                   GET_IPADDR_STRING(lshp->un_lsa_id.lsa_id));
+            break;
+        }
+        ND_PRINT("\n\t    Options: [%s]",
+		 bittok2str(ospf_option_values, "none", GET_U_1(lshp->ls_options)));
+
+        return (ls_length);
+}
+
+/* draft-ietf-ospf-mt-09 */
+static const struct tok ospf_topology_values[] = {
+    { 0, "default" },
+    { 1, "multicast" },
+    { 2, "management" },
+    { 0, NULL }
+};
+
+/*
+ * Print all the per-topology metrics.
+ */
+static void
+ospf_print_tos_metrics(netdissect_options *ndo,
+                       const union un_tos *tos)
+{
+    u_int metric_count;
+    u_int toscount;
+    u_int tos_type;
+
+    toscount = GET_U_1(tos->link.link_tos_count)+1;
+    metric_count = 0;
+
+    /*
+     * All but the first metric contain a valid topology id.
+     */
+    while (toscount != 0) {
+        tos_type = GET_U_1(tos->metrics.tos_type);
+        ND_PRINT("\n\t\ttopology %s (%u), metric %u",
+               tok2str(ospf_topology_values, "Unknown",
+                       metric_count ? tos_type : 0),
+               metric_count ? tos_type : 0,
+               GET_BE_U_2(tos->metrics.tos_metric));
+        metric_count++;
+        tos++;
+        toscount--;
+    }
+}
+
+/*
+ * Print a single link state advertisement.  If truncated or if LSA length
+ * field is less than the length of the LSA header, return NULl, else
+ * return pointer to data past end of LSA.
+ */
+static const uint8_t *
+ospf_print_lsa(netdissect_options *ndo,
+               const struct lsa *lsap)
+{
+	const uint8_t *ls_end;
+	const struct rlalink *rlp;
+	const nd_ipv4 *ap;
+	const struct aslametric *almp;
+	const struct mcla *mcp;
+	const uint8_t *lp;
+	u_int tlv_type, tlv_length, rla_count, topology;
+	int ospf_print_lshdr_ret;
+	u_int ls_length;
+	const uint8_t *tptr;
+
+	tptr = (const uint8_t *)lsap->lsa_un.un_unknown; /* squelch compiler warnings */
+	ospf_print_lshdr_ret = ospf_print_lshdr(ndo, &lsap->ls_hdr);
+	if (ospf_print_lshdr_ret < 0)
+		return(NULL);
+	ls_length = (u_int)ospf_print_lshdr_ret;
+	ls_end = (const uint8_t *)lsap + ls_length;
+	/*
+	 * ospf_print_lshdr() returns -1 if the length is too short,
+	 * so we know ls_length is >= sizeof(struct lsa_hdr).
+	 */
+	ls_length -= sizeof(struct lsa_hdr);
+
+	switch (GET_U_1(lsap->ls_hdr.ls_type)) {
+
+	case LS_TYPE_ROUTER:
+		ND_PRINT("\n\t    Router LSA Options: [%s]",
+		          bittok2str(ospf_rla_flag_values, "none", GET_U_1(lsap->lsa_un.un_rla.rla_flags)));
+
+		rla_count = GET_BE_U_2(lsap->lsa_un.un_rla.rla_count);
+		ND_TCHECK_SIZE(lsap->lsa_un.un_rla.rla_link);
+		rlp = lsap->lsa_un.un_rla.rla_link;
+		for (u_int i = rla_count; i != 0; i--) {
+			ND_TCHECK_SIZE(rlp);
+			switch (GET_U_1(rlp->un_tos.link.link_type)) {
+
+			case RLA_TYPE_VIRTUAL:
+				ND_PRINT("\n\t      Virtual Link: Neighbor Router-ID: %s, Interface Address: %s",
+				    GET_IPADDR_STRING(rlp->link_id),
+				    GET_IPADDR_STRING(rlp->link_data));
+				break;
+
+			case RLA_TYPE_ROUTER:
+				ND_PRINT("\n\t      Neighbor Router-ID: %s, Interface Address: %s",
+				    GET_IPADDR_STRING(rlp->link_id),
+				    GET_IPADDR_STRING(rlp->link_data));
+				break;
+
+			case RLA_TYPE_TRANSIT:
+				ND_PRINT("\n\t      Neighbor Network-ID: %s, Interface Address: %s",
+				    GET_IPADDR_STRING(rlp->link_id),
+				    GET_IPADDR_STRING(rlp->link_data));
+				break;
+
+			case RLA_TYPE_STUB:
+				ND_PRINT("\n\t      Stub Network: %s, Mask: %s",
+				    GET_IPADDR_STRING(rlp->link_id),
+				    GET_IPADDR_STRING(rlp->link_data));
+				break;
+
+			default:
+				ND_PRINT("\n\t      Unknown Router Link Type (%u)",
+				    GET_U_1(rlp->un_tos.link.link_type));
+				return (ls_end);
+			}
+
+			ospf_print_tos_metrics(ndo, &rlp->un_tos);
+
+			rlp = (const struct rlalink *)((const u_char *)(rlp + 1) +
+			    (GET_U_1(rlp->un_tos.link.link_tos_count) * sizeof(union un_tos)));
+		}
+		break;
+
+	case LS_TYPE_NETWORK:
+		ND_PRINT("\n\t    Mask %s\n\t    Connected Routers:",
+		    GET_IPADDR_STRING(lsap->lsa_un.un_nla.nla_mask));
+		ap = lsap->lsa_un.un_nla.nla_router;
+		while ((const u_char *)ap < ls_end) {
+			ND_PRINT("\n\t      %s", GET_IPADDR_STRING(ap));
+			++ap;
+		}
+		break;
+
+	case LS_TYPE_SUM_IP:
+		ND_TCHECK_4(lsap->lsa_un.un_nla.nla_mask);
+		ND_PRINT("\n\t    Mask %s",
+		    GET_IPADDR_STRING(lsap->lsa_un.un_sla.sla_mask));
+		ND_TCHECK_SIZE(lsap->lsa_un.un_sla.sla_tosmetric);
+		lp = (const uint8_t *)lsap->lsa_un.un_sla.sla_tosmetric;
+		while (lp < ls_end) {
+			uint32_t ul;
+
+			ul = GET_BE_U_4(lp);
+                        topology = (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS;
+			ND_PRINT("\n\t\ttopology %s (%u) metric %u",
+                               tok2str(ospf_topology_values, "Unknown", topology),
+                               topology,
+                               ul & SLA_MASK_METRIC);
+			lp += 4;
+		}
+		break;
+
+	case LS_TYPE_SUM_ABR:
+		ND_TCHECK_SIZE(lsap->lsa_un.un_sla.sla_tosmetric);
+		lp = (const uint8_t *)lsap->lsa_un.un_sla.sla_tosmetric;
+		while (lp < ls_end) {
+			uint32_t ul;
+
+			ul = GET_BE_U_4(lp);
+                        topology = (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS;
+			ND_PRINT("\n\t\ttopology %s (%u) metric %u",
+                               tok2str(ospf_topology_values, "Unknown", topology),
+                               topology,
+                               ul & SLA_MASK_METRIC);
+			lp += 4;
+		}
+		break;
+
+	case LS_TYPE_ASE:
+        case LS_TYPE_NSSA: /* fall through - those LSAs share the same format */
+		ND_TCHECK_4(lsap->lsa_un.un_nla.nla_mask);
+		ND_PRINT("\n\t    Mask %s",
+		    GET_IPADDR_STRING(lsap->lsa_un.un_asla.asla_mask));
+
+		ND_TCHECK_SIZE(lsap->lsa_un.un_sla.sla_tosmetric);
+		almp = lsap->lsa_un.un_asla.asla_metric;
+		while ((const u_char *)almp < ls_end) {
+			uint32_t ul;
+
+			ul = GET_BE_U_4(almp->asla_tosmetric);
+                        topology = ((ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS);
+			ND_PRINT("\n\t\ttopology %s (%u), type %u, metric",
+                               tok2str(ospf_topology_values, "Unknown", topology),
+                               topology,
+                               (ul & ASLA_FLAG_EXTERNAL) ? 2 : 1);
+			if ((ul & ASLA_MASK_METRIC) == 0xffffff)
+				ND_PRINT(" infinite");
+			else
+				ND_PRINT(" %u", (ul & ASLA_MASK_METRIC));
+
+			if (GET_IPV4_TO_NETWORK_ORDER(almp->asla_forward) != 0) {
+				ND_PRINT(", forward %s", GET_IPADDR_STRING(almp->asla_forward));
+			}
+			if (GET_IPV4_TO_NETWORK_ORDER(almp->asla_tag) != 0) {
+				ND_PRINT(", tag %s", GET_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 ((const u_char *)mcp < ls_end) {
+			switch (GET_BE_U_4(mcp->mcla_vtype)) {
+
+			case MCLA_VERTEX_ROUTER:
+				ND_PRINT("\n\t    Router Router-ID %s",
+				    GET_IPADDR_STRING(mcp->mcla_vid));
+				break;
+
+			case MCLA_VERTEX_NETWORK:
+				ND_PRINT("\n\t    Network Designated Router %s",
+				    GET_IPADDR_STRING(mcp->mcla_vid));
+				break;
+
+			default:
+				ND_PRINT("\n\t    unknown VertexType (%u)",
+				    GET_BE_U_4(mcp->mcla_vtype));
+				break;
+			}
+		++mcp;
+		}
+		break;
+
+	case LS_TYPE_OPAQUE_LL: /* fall through */
+	case LS_TYPE_OPAQUE_AL:
+	case LS_TYPE_OPAQUE_DW:
+
+	    switch (GET_U_1(lsap->ls_hdr.un_lsa_id.opaque_field.opaque_type)) {
+            case LS_OPAQUE_TYPE_RI:
+		tptr = (const uint8_t *)(lsap->lsa_un.un_ri_tlv);
+
+		u_int ls_length_remaining = ls_length;
+		while (ls_length_remaining != 0) {
+                    ND_TCHECK_4(tptr);
+		    if (ls_length_remaining < 4) {
+                        ND_PRINT("\n\t    Remaining LS length %u < 4", ls_length_remaining);
+                        return(ls_end);
+                    }
+                    tlv_type = GET_BE_U_2(tptr);
+                    tlv_length = GET_BE_U_2(tptr + 2);
+                    tptr+=4;
+                    ls_length_remaining-=4;
+
+                    ND_PRINT("\n\t    %s TLV (%u), length: %u, value: ",
+                           tok2str(lsa_opaque_ri_tlv_values,"unknown",tlv_type),
+                           tlv_type,
+                           tlv_length);
+
+                    if (tlv_length > ls_length_remaining) {
+                        ND_PRINT("\n\t    Bogus length %u > remaining LS length %u", tlv_length,
+                            ls_length_remaining);
+                        return(ls_end);
+                    }
+                    ND_TCHECK_LEN(tptr, tlv_length);
+                    switch(tlv_type) {
+
+                    case LS_OPAQUE_RI_TLV_CAP:
+                        if (tlv_length != 4) {
+                            ND_PRINT("\n\t    Bogus length %u != 4", tlv_length);
+                            return(ls_end);
+                        }
+                        ND_PRINT("Capabilities: %s",
+                               bittok2str(lsa_opaque_ri_tlv_cap_values, "Unknown", GET_BE_U_4(tptr)));
+                        break;
+                    default:
+                        if (ndo->ndo_vflag <= 1) {
+                            if (!print_unknown_data(ndo, tptr, "\n\t      ", tlv_length))
+                                return(ls_end);
+                        }
+                        break;
+
+                    }
+                    tptr+=tlv_length;
+                    ls_length_remaining-=tlv_length;
+                }
+                break;
+
+            case LS_OPAQUE_TYPE_GRACE:
+                if (ospf_grace_lsa_print(ndo, (const u_char *)(lsap->lsa_un.un_grace_tlv),
+                                         ls_length) == -1) {
+                    return(ls_end);
+                }
+                break;
+
+	    case LS_OPAQUE_TYPE_TE:
+                if (ospf_te_lsa_print(ndo, (const u_char *)(lsap->lsa_un.un_te_lsa_tlv),
+                                      ls_length) == -1) {
+                    return(ls_end);
+                }
+                break;
+
+            default:
+                if (ndo->ndo_vflag <= 1) {
+                    if (!print_unknown_data(ndo, (const uint8_t *)lsap->lsa_un.un_unknown,
+                                           "\n\t    ", ls_length))
+                        return(ls_end);
+                }
+                break;
+            }
+        }
+
+        /* do we want to see an additionally hexdump ? */
+        if (ndo->ndo_vflag> 1)
+            if (!print_unknown_data(ndo, (const uint8_t *)lsap->lsa_un.un_unknown,
+                                   "\n\t    ", ls_length)) {
+                return(ls_end);
+            }
+
+	return (ls_end);
+trunc:
+	return (NULL);
+}
+
+static void
+ospf_decode_lls(netdissect_options *ndo,
+                const struct ospfhdr *op, u_int length)
+{
+    const u_char *dptr;
+    const u_char *dataend;
+    u_int length2;
+    uint16_t lls_type, lls_len;
+    uint32_t lls_flags;
+
+    switch (GET_U_1(op->ospf_type)) {
+
+    case OSPF_TYPE_HELLO:
+        if (!(GET_U_1(op->ospf_hello.hello_options) & OSPF_OPTION_L))
+            return;
+        break;
+
+    case OSPF_TYPE_DD:
+        if (!(GET_U_1(op->ospf_db.db_options) & OSPF_OPTION_L))
+            return;
+        break;
+
+    default:
+        return;
+    }
+
+    /* dig deeper if LLS data is available; see RFC4813 */
+    length2 = GET_BE_U_2(op->ospf_len);
+    dptr = (const u_char *)op + length2;
+    dataend = (const u_char *)op + length;
+
+    if (GET_BE_U_2(op->ospf_authtype) == OSPF_AUTH_MD5) {
+        dptr = dptr + GET_U_1(op->ospf_authdata + 3);
+        length2 += GET_U_1(op->ospf_authdata + 3);
+    }
+    if (length2 >= length) {
+        ND_PRINT("\n\t[LLS truncated]");
+        return;
+    }
+    ND_PRINT("\n\t  LLS: checksum: 0x%04x", (u_int) GET_BE_U_2(dptr));
+
+    dptr += 2;
+    length2 = GET_BE_U_2(dptr);
+    ND_PRINT(", length: %u", length2);
+
+    dptr += 2;
+    while (dptr < dataend) {
+        lls_type = GET_BE_U_2(dptr);
+        ND_PRINT("\n\t    %s (%u)",
+               tok2str(ospf_lls_tlv_values,"Unknown TLV",lls_type),
+               lls_type);
+        dptr += 2;
+        lls_len = GET_BE_U_2(dptr);
+        ND_PRINT(", length: %u", lls_len);
+        dptr += 2;
+        switch (lls_type) {
+
+        case OSPF_LLS_EO:
+            if (lls_len != 4) {
+                ND_PRINT(" [should be 4]");
+                lls_len = 4;
+            }
+            lls_flags = GET_BE_U_4(dptr);
+            ND_PRINT("\n\t      Options: 0x%08x [%s]", lls_flags,
+                   bittok2str(ospf_lls_eo_options, "?", lls_flags));
+
+            break;
+
+        case OSPF_LLS_MD5:
+            if (lls_len != 20) {
+                ND_PRINT(" [should be 20]");
+                lls_len = 20;
+            }
+            ND_PRINT("\n\t      Sequence number: 0x%08x", GET_BE_U_4(dptr));
+            break;
+        }
+
+        dptr += lls_len;
+    }
+}
+
+static int
+ospf_decode_v2(netdissect_options *ndo,
+               const struct ospfhdr *op, const u_char *dataend)
+{
+	const nd_ipv4 *ap;
+	const struct lsr *lsrp;
+	const struct lsa_hdr *lshp;
+	const struct lsa *lsap;
+	uint32_t lsa_count,lsa_count_max;
+
+	switch (GET_U_1(op->ospf_type)) {
+
+	case OSPF_TYPE_HELLO:
+		ND_PRINT("\n\tOptions [%s]",
+		          bittok2str(ospf_option_values,"none",GET_U_1(op->ospf_hello.hello_options)));
+
+		ND_PRINT("\n\t  Hello Timer %us, Dead Timer %us, Mask %s, Priority %u",
+		          GET_BE_U_2(op->ospf_hello.hello_helloint),
+		          GET_BE_U_4(op->ospf_hello.hello_deadint),
+		          GET_IPADDR_STRING(op->ospf_hello.hello_mask),
+		          GET_U_1(op->ospf_hello.hello_priority));
+
+		if (GET_IPV4_TO_NETWORK_ORDER(op->ospf_hello.hello_dr) != 0)
+			ND_PRINT("\n\t  Designated Router %s",
+			    GET_IPADDR_STRING(op->ospf_hello.hello_dr));
+
+		if (GET_IPV4_TO_NETWORK_ORDER(op->ospf_hello.hello_bdr) != 0)
+			ND_PRINT(", Backup Designated Router %s",
+			          GET_IPADDR_STRING(op->ospf_hello.hello_bdr));
+
+		ap = op->ospf_hello.hello_neighbor;
+		if ((const u_char *)ap < dataend)
+			ND_PRINT("\n\t  Neighbor List:");
+		while ((const u_char *)ap < dataend) {
+			ND_PRINT("\n\t    %s", GET_IPADDR_STRING(ap));
+			++ap;
+		}
+		break;	/* HELLO */
+
+	case OSPF_TYPE_DD:
+		ND_PRINT("\n\tOptions [%s]",
+		          bittok2str(ospf_option_values, "none", GET_U_1(op->ospf_db.db_options)));
+		ND_PRINT(", DD Flags [%s]",
+		          bittok2str(ospf_dd_flag_values, "none", GET_U_1(op->ospf_db.db_flags)));
+		if (GET_BE_U_2(op->ospf_db.db_ifmtu)) {
+			ND_PRINT(", MTU: %u",
+				 GET_BE_U_2(op->ospf_db.db_ifmtu));
+		}
+		ND_PRINT(", Sequence: 0x%08x", GET_BE_U_4(op->ospf_db.db_seq));
+
+		/* Print all the LS adv's */
+		lshp = op->ospf_db.db_lshdr;
+		while (((const u_char *)lshp < dataend) && ospf_print_lshdr(ndo, lshp) != -1) {
+			++lshp;
+		}
+		break;
+
+	case OSPF_TYPE_LS_REQ:
+                lsrp = op->ospf_lsr;
+                while ((const u_char *)lsrp < dataend) {
+                    ND_TCHECK_SIZE(lsrp);
+
+                    ND_PRINT("\n\t  Advertising Router: %s, %s LSA (%u)",
+                           GET_IPADDR_STRING(lsrp->ls_router),
+                           tok2str(lsa_values,"unknown",GET_BE_U_4(lsrp->ls_type)),
+                           GET_BE_U_4(lsrp->ls_type));
+
+                    switch (GET_BE_U_4(lsrp->ls_type)) {
+                        /* the LSA header for opaque LSAs was slightly changed */
+                    case LS_TYPE_OPAQUE_LL:
+                    case LS_TYPE_OPAQUE_AL:
+                    case LS_TYPE_OPAQUE_DW:
+                        ND_PRINT(", Opaque-Type: %s LSA (%u), Opaque-ID: %u",
+                               tok2str(lsa_opaque_values, "unknown",GET_U_1(lsrp->un_ls_stateid.opaque_field.opaque_type)),
+                               GET_U_1(lsrp->un_ls_stateid.opaque_field.opaque_type),
+                               GET_BE_U_3(lsrp->un_ls_stateid.opaque_field.opaque_id));
+                        break;
+                    default:
+                        ND_PRINT(", LSA-ID: %s",
+                               GET_IPADDR_STRING(lsrp->un_ls_stateid.ls_stateid));
+                        break;
+                    }
+
+                    ++lsrp;
+                }
+		break;
+
+	case OSPF_TYPE_LS_UPDATE:
+                lsap = op->ospf_lsu.lsu_lsa;
+                lsa_count_max = GET_BE_U_4(op->ospf_lsu.lsu_count);
+                ND_PRINT(", %u LSA%s", lsa_count_max, PLURAL_SUFFIX(lsa_count_max));
+                for (lsa_count=1;lsa_count <= lsa_count_max;lsa_count++) {
+                    ND_PRINT("\n\t  LSA #%u", lsa_count);
+                        lsap = (const struct lsa *)ospf_print_lsa(ndo, lsap);
+                        if (lsap == NULL)
+                                goto trunc;
+                }
+		break;
+
+	case OSPF_TYPE_LS_ACK:
+                lshp = op->ospf_lsa.lsa_lshdr;
+                while (ospf_print_lshdr(ndo, lshp) != -1) {
+                    ++lshp;
+                }
+                break;
+
+	default:
+		break;
+	}
+	return (0);
+trunc:
+	return (1);
+}
+
+void
+ospf_print(netdissect_options *ndo,
+           const u_char *bp, u_int length,
+           const u_char *bp2 _U_)
+{
+	const struct ospfhdr *op;
+	const u_char *dataend;
+	const char *cp;
+
+	ndo->ndo_protocol = "ospf2";
+	op = (const struct ospfhdr *)bp;
+
+	/* XXX Before we do anything else, strip off the MD5 trailer */
+	if (GET_BE_U_2(op->ospf_authtype) == OSPF_AUTH_MD5) {
+		length -= OSPF_AUTH_MD5_LEN;
+		ndo->ndo_snapend -= OSPF_AUTH_MD5_LEN;
+	}
+
+	/* If the type is valid translate it, or just print the type */
+	/* value.  If it's not valid, say so and return */
+	cp = tok2str(type2str, "unknown LS-type %u", GET_U_1(op->ospf_type));
+	ND_PRINT("OSPFv%u, %s, length %u", GET_U_1(op->ospf_version), cp,
+		 length);
+	if (*cp == 'u')
+		return;
+
+	if (!ndo->ndo_vflag) { /* non verbose - so lets bail out here */
+		return;
+	}
+
+	if (length != GET_BE_U_2(op->ospf_len)) {
+		ND_PRINT(" [len %u]", GET_BE_U_2(op->ospf_len));
+	}
+
+	if (length > GET_BE_U_2(op->ospf_len)) {
+		dataend = bp + GET_BE_U_2(op->ospf_len);
+	} else {
+		dataend = bp + length;
+	}
+
+	ND_PRINT("\n\tRouter-ID %s", GET_IPADDR_STRING(op->ospf_routerid));
+
+	if (GET_IPV4_TO_NETWORK_ORDER(op->ospf_areaid) != 0)
+		ND_PRINT(", Area %s", GET_IPADDR_STRING(op->ospf_areaid));
+	else
+		ND_PRINT(", Backbone Area");
+
+	if (ndo->ndo_vflag) {
+		/* Print authentication data (should we really do this?) */
+		ND_TCHECK_LEN(op->ospf_authdata, sizeof(op->ospf_authdata));
+
+		ND_PRINT(", Authentication Type: %s (%u)",
+		          tok2str(ospf_authtype_values, "unknown", GET_BE_U_2(op->ospf_authtype)),
+		          GET_BE_U_2(op->ospf_authtype));
+
+		switch (GET_BE_U_2(op->ospf_authtype)) {
+
+		case OSPF_AUTH_NONE:
+			break;
+
+		case OSPF_AUTH_SIMPLE:
+			ND_PRINT("\n\tSimple text password: ");
+			nd_printjnp(ndo, op->ospf_authdata, OSPF_AUTH_SIMPLE_LEN);
+			break;
+
+		case OSPF_AUTH_MD5:
+			ND_PRINT("\n\tKey-ID: %u, Auth-Length: %u, Crypto Sequence Number: 0x%08x",
+			          GET_U_1(op->ospf_authdata + 2),
+			          GET_U_1(op->ospf_authdata + 3),
+			          GET_BE_U_4((op->ospf_authdata) + 4));
+			break;
+
+		default:
+			return;
+		}
+	}
+	/* Do rest according to version.	 */
+	switch (GET_U_1(op->ospf_version)) {
+
+	case 2:
+		/* ospf version 2 */
+		if (ospf_decode_v2(ndo, op, dataend))
+			goto trunc;
+		if (length > GET_BE_U_2(op->ospf_len))
+			ospf_decode_lls(ndo, op, length);
+		break;
+
+	default:
+		ND_PRINT(" ospf [version %u]", GET_U_1(op->ospf_version));
+		break;
+	}			/* end switch on version */
+
+	return;
+trunc:
+	nd_trunc_longjmp(ndo);
+}