Adding upstream version 4.99.4.upstream/4.99.4

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

1 files changed, 532 insertions, 0 deletions

diff --git a/print-eigrp.c b/print-eigrp.c
new file mode 100644
index 0000000..2702beb
--- /dev/null
+++ b/print-eigrp.c
@@ -0,0 +1,532 @@
+/*
+ * Copyright (c) 1998-2004  Hannes Gredler <hannes@gredler.at>
+ *      The TCPDUMP project
+ *
+ * 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, and (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.
+ * 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.
+ */
+
+/* \summary: Enhanced Interior Gateway Routing Protocol (EIGRP) printer */
+
+/*
+ * specification:
+ *
+ * https://web.archive.org/web/20190722221712/https://www.rhyshaden.com/eigrp.htm
+ * RFC 7868
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#include <string.h>
+
+#include "netdissect.h"
+#include "extract.h"
+#include "addrtoname.h"
+
+
+struct eigrp_common_header {
+    nd_uint8_t  version;
+    nd_uint8_t  opcode;
+    nd_uint16_t checksum;
+    nd_uint32_t flags;
+    nd_uint32_t seq;
+    nd_uint32_t ack;
+    nd_uint16_t vrid;
+    nd_uint16_t asn;
+};
+
+#define	EIGRP_VERSION                        2
+
+#define	EIGRP_OPCODE_UPDATE                  1
+#define	EIGRP_OPCODE_QUERY                   3
+#define	EIGRP_OPCODE_REPLY                   4
+#define	EIGRP_OPCODE_HELLO                   5
+#define	EIGRP_OPCODE_IPXSAP                  6
+#define	EIGRP_OPCODE_PROBE                   7
+
+static const struct tok eigrp_opcode_values[] = {
+    { EIGRP_OPCODE_UPDATE, "Update" },
+    { EIGRP_OPCODE_QUERY, "Query" },
+    { EIGRP_OPCODE_REPLY, "Reply" },
+    { EIGRP_OPCODE_HELLO, "Hello" },
+    { EIGRP_OPCODE_IPXSAP, "IPX SAP" },
+    { EIGRP_OPCODE_PROBE, "Probe" },
+    { 0, NULL}
+};
+
+static const struct tok eigrp_common_header_flag_values[] = {
+    { 0x01, "Init" },
+    { 0x02, "Conditionally Received" },
+    { 0x04, "Restart" },
+    { 0x08, "End-of-Table" },
+    { 0, NULL}
+};
+
+struct eigrp_tlv_header {
+    nd_uint16_t type;
+    nd_uint16_t length;
+};
+
+#define EIGRP_TLV_GENERAL_PARM   0x0001
+#define EIGRP_TLV_AUTH           0x0002
+#define EIGRP_TLV_SEQ            0x0003
+#define EIGRP_TLV_SW_VERSION     0x0004
+#define EIGRP_TLV_MCAST_SEQ      0x0005
+#define EIGRP_TLV_IP_INT         0x0102
+#define EIGRP_TLV_IP_EXT         0x0103
+#define EIGRP_TLV_AT_INT         0x0202
+#define EIGRP_TLV_AT_EXT         0x0203
+#define EIGRP_TLV_AT_CABLE_SETUP 0x0204
+#define EIGRP_TLV_IPX_INT        0x0302
+#define EIGRP_TLV_IPX_EXT        0x0303
+
+static const struct tok eigrp_tlv_values[] = {
+    { EIGRP_TLV_GENERAL_PARM, "General Parameters"},
+    { EIGRP_TLV_AUTH, "Authentication"},
+    { EIGRP_TLV_SEQ, "Sequence"},
+    { EIGRP_TLV_SW_VERSION, "Software Version"},
+    { EIGRP_TLV_MCAST_SEQ, "Next Multicast Sequence"},
+    { EIGRP_TLV_IP_INT, "IP Internal routes"},
+    { EIGRP_TLV_IP_EXT, "IP External routes"},
+    { EIGRP_TLV_AT_INT, "AppleTalk Internal routes"},
+    { EIGRP_TLV_AT_EXT, "AppleTalk External routes"},
+    { EIGRP_TLV_AT_CABLE_SETUP, "AppleTalk Cable setup"},
+    { EIGRP_TLV_IPX_INT, "IPX Internal routes"},
+    { EIGRP_TLV_IPX_EXT, "IPX External routes"},
+    { 0, NULL}
+};
+
+struct eigrp_tlv_general_parm_t {
+    nd_uint8_t  k1;
+    nd_uint8_t  k2;
+    nd_uint8_t  k3;
+    nd_uint8_t  k4;
+    nd_uint8_t  k5;
+    nd_uint8_t  res;
+    nd_uint16_t holdtime;
+};
+
+struct eigrp_tlv_sw_version_t {
+    nd_uint8_t ios_major;
+    nd_uint8_t ios_minor;
+    nd_uint8_t eigrp_major;
+    nd_uint8_t eigrp_minor;
+};
+
+struct eigrp_tlv_ip_int_t {
+    nd_ipv4     nexthop;
+    nd_uint32_t delay;
+    nd_uint32_t bandwidth;
+    nd_uint24_t mtu;
+    nd_uint8_t  hopcount;
+    nd_uint8_t  reliability;
+    nd_uint8_t  load;
+    nd_byte     reserved[2];
+    nd_uint8_t  plen;
+    nd_uint8_t  destination; /* variable length [1-4] bytes encoding */
+};
+
+struct eigrp_tlv_ip_ext_t {
+    nd_ipv4     nexthop;
+    nd_ipv4     origin_router;
+    nd_uint32_t origin_as;
+    nd_uint32_t tag;
+    nd_uint32_t metric;
+    nd_byte     reserved[2];
+    nd_uint8_t  proto_id;
+    nd_uint8_t  flags;
+    nd_uint32_t delay;
+    nd_uint32_t bandwidth;
+    nd_uint24_t mtu;
+    nd_uint8_t  hopcount;
+    nd_uint8_t  reliability;
+    nd_uint8_t  load;
+    nd_byte     reserved2[2];
+    nd_uint8_t  plen;
+    nd_uint8_t  destination; /* variable length [1-4] bytes encoding */
+};
+
+struct eigrp_tlv_at_cable_setup_t {
+    nd_uint16_t cable_start;
+    nd_uint16_t cable_end;
+    nd_uint32_t router_id;
+};
+
+struct eigrp_tlv_at_int_t {
+    nd_byte     nexthop[4];
+    nd_uint32_t delay;
+    nd_uint32_t bandwidth;
+    nd_uint24_t mtu;
+    nd_uint8_t  hopcount;
+    nd_uint8_t  reliability;
+    nd_uint8_t  load;
+    nd_byte     reserved[2];
+    nd_uint16_t cable_start;
+    nd_uint16_t cable_end;
+};
+
+struct eigrp_tlv_at_ext_t {
+    nd_byte     nexthop[4];
+    nd_uint32_t origin_router;
+    nd_uint32_t origin_as;
+    nd_uint32_t tag;
+    nd_uint8_t  proto_id;
+    nd_uint8_t  flags;
+    nd_uint16_t metric;
+    nd_uint32_t delay;
+    nd_uint32_t bandwidth;
+    nd_uint24_t mtu;
+    nd_uint8_t  hopcount;
+    nd_uint8_t  reliability;
+    nd_uint8_t  load;
+    nd_byte     reserved2[2];
+    nd_uint16_t cable_start;
+    nd_uint16_t cable_end;
+};
+
+static const struct tok eigrp_ext_proto_id_values[] = {
+    { 0x01, "IGRP" },
+    { 0x02, "EIGRP" },
+    { 0x03, "Static" },
+    { 0x04, "RIP" },
+    { 0x05, "Hello" },
+    { 0x06, "OSPF" },
+    { 0x07, "IS-IS" },
+    { 0x08, "EGP" },
+    { 0x09, "BGP" },
+    { 0x0a, "IDRP" },
+    { 0x0b, "Connected" },
+    { 0, NULL}
+};
+
+void
+eigrp_print(netdissect_options *ndo, const u_char *pptr, u_int len)
+{
+    const struct eigrp_common_header *eigrp_com_header;
+    const struct eigrp_tlv_header *eigrp_tlv_header;
+    const u_char *tptr,*tlv_tptr;
+    u_int tlen,eigrp_tlv_len,eigrp_tlv_type,tlv_tlen, byte_length, bit_length;
+    uint8_t prefix[4];
+
+    union {
+        const struct eigrp_tlv_general_parm_t *eigrp_tlv_general_parm;
+        const struct eigrp_tlv_sw_version_t *eigrp_tlv_sw_version;
+        const struct eigrp_tlv_ip_int_t *eigrp_tlv_ip_int;
+        const struct eigrp_tlv_ip_ext_t *eigrp_tlv_ip_ext;
+        const struct eigrp_tlv_at_cable_setup_t *eigrp_tlv_at_cable_setup;
+        const struct eigrp_tlv_at_int_t *eigrp_tlv_at_int;
+        const struct eigrp_tlv_at_ext_t *eigrp_tlv_at_ext;
+    } tlv_ptr;
+
+    ndo->ndo_protocol = "eigrp";
+    tptr=pptr;
+    eigrp_com_header = (const struct eigrp_common_header *)pptr;
+    ND_TCHECK_SIZE(eigrp_com_header);
+
+    /*
+     * Sanity checking of the header.
+     */
+    if (GET_U_1(eigrp_com_header->version) != EIGRP_VERSION) {
+        ND_PRINT("EIGRP version %u packet not supported",
+                 GET_U_1(eigrp_com_header->version));
+        return;
+    }
+
+    /* in non-verbose mode just lets print the basic Message Type*/
+    if (ndo->ndo_vflag < 1) {
+        ND_PRINT("EIGRP %s, length: %u",
+               tok2str(eigrp_opcode_values, "unknown (%u)",GET_U_1(eigrp_com_header->opcode)),
+               len);
+        return;
+    }
+
+    /* ok they seem to want to know everything - lets fully decode it */
+
+    if (len < sizeof(struct eigrp_common_header)) {
+        ND_PRINT("EIGRP %s, length: %u (too short, < %zu)",
+               tok2str(eigrp_opcode_values, "unknown (%u)",GET_U_1(eigrp_com_header->opcode)),
+               len, sizeof(struct eigrp_common_header));
+        return;
+    }
+    tlen=len-sizeof(struct eigrp_common_header);
+
+    ND_PRINT("\n\tEIGRP v%u, opcode: %s (%u), chksum: 0x%04x, Flags: [%s]"
+             "\n\tseq: 0x%08x, ack: 0x%08x, VRID: %u, AS: %u, length: %u",
+           GET_U_1(eigrp_com_header->version),
+           tok2str(eigrp_opcode_values, "unknown, type: %u",GET_U_1(eigrp_com_header->opcode)),
+           GET_U_1(eigrp_com_header->opcode),
+           GET_BE_U_2(eigrp_com_header->checksum),
+           bittok2str(eigrp_common_header_flag_values,
+                   "none",
+                   GET_BE_U_4(eigrp_com_header->flags)),
+           GET_BE_U_4(eigrp_com_header->seq),
+           GET_BE_U_4(eigrp_com_header->ack),
+           GET_BE_U_2(eigrp_com_header->vrid),
+           GET_BE_U_2(eigrp_com_header->asn),
+           tlen);
+
+    tptr+=sizeof(struct eigrp_common_header);
+
+    while(tlen>0) {
+        /* did we capture enough for fully decoding the object header ? */
+        ND_TCHECK_LEN(tptr, sizeof(struct eigrp_tlv_header));
+
+        eigrp_tlv_header = (const struct eigrp_tlv_header *)tptr;
+        eigrp_tlv_len=GET_BE_U_2(eigrp_tlv_header->length);
+        eigrp_tlv_type=GET_BE_U_2(eigrp_tlv_header->type);
+
+
+        if (eigrp_tlv_len < sizeof(struct eigrp_tlv_header) ||
+            eigrp_tlv_len > tlen) {
+            print_unknown_data(ndo,tptr+sizeof(struct eigrp_tlv_header),"\n\t    ",tlen);
+            return;
+        }
+
+        ND_PRINT("\n\t  %s TLV (0x%04x), length: %u",
+               tok2str(eigrp_tlv_values,
+                       "Unknown",
+                       eigrp_tlv_type),
+               eigrp_tlv_type,
+               eigrp_tlv_len);
+
+        if (eigrp_tlv_len < sizeof(struct eigrp_tlv_header)) {
+                ND_PRINT(" (too short, < %zu)",
+                         sizeof(struct eigrp_tlv_header));
+                break;
+        }
+        tlv_tptr=tptr+sizeof(struct eigrp_tlv_header);
+        tlv_tlen=eigrp_tlv_len-sizeof(struct eigrp_tlv_header);
+
+        /* did we capture enough for fully decoding the object ? */
+        ND_TCHECK_LEN(tptr, eigrp_tlv_len);
+
+        switch(eigrp_tlv_type) {
+
+        case EIGRP_TLV_GENERAL_PARM:
+            tlv_ptr.eigrp_tlv_general_parm = (const struct eigrp_tlv_general_parm_t *)tlv_tptr;
+            if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_general_parm)) {
+                ND_PRINT(" (too short, < %zu)",
+			 sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_general_parm));
+                break;
+            }
+
+            ND_PRINT("\n\t    holdtime: %us, k1 %u, k2 %u, k3 %u, k4 %u, k5 %u",
+                   GET_BE_U_2(tlv_ptr.eigrp_tlv_general_parm->holdtime),
+                   GET_U_1(tlv_ptr.eigrp_tlv_general_parm->k1),
+                   GET_U_1(tlv_ptr.eigrp_tlv_general_parm->k2),
+                   GET_U_1(tlv_ptr.eigrp_tlv_general_parm->k3),
+                   GET_U_1(tlv_ptr.eigrp_tlv_general_parm->k4),
+                   GET_U_1(tlv_ptr.eigrp_tlv_general_parm->k5));
+            break;
+
+        case EIGRP_TLV_SW_VERSION:
+            tlv_ptr.eigrp_tlv_sw_version = (const struct eigrp_tlv_sw_version_t *)tlv_tptr;
+            if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_sw_version)) {
+                ND_PRINT(" (too short, < %zu)",
+                         sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_sw_version));
+                break;
+            }
+
+            ND_PRINT("\n\t    IOS version: %u.%u, EIGRP version %u.%u",
+                   GET_U_1(tlv_ptr.eigrp_tlv_sw_version->ios_major),
+                   GET_U_1(tlv_ptr.eigrp_tlv_sw_version->ios_minor),
+                   GET_U_1(tlv_ptr.eigrp_tlv_sw_version->eigrp_major),
+                   GET_U_1(tlv_ptr.eigrp_tlv_sw_version->eigrp_minor));
+            break;
+
+        case EIGRP_TLV_IP_INT:
+            tlv_ptr.eigrp_tlv_ip_int = (const struct eigrp_tlv_ip_int_t *)tlv_tptr;
+            if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_ip_int)) {
+                ND_PRINT(" (too short, < %zu)",
+                         sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_ip_int));
+                break;
+            }
+
+            bit_length = GET_U_1(tlv_ptr.eigrp_tlv_ip_int->plen);
+            if (bit_length > 32) {
+                ND_PRINT("\n\t    illegal prefix length %u",bit_length);
+                break;
+            }
+            byte_length = (bit_length + 7) / 8; /* variable length encoding */
+            memset(prefix, 0, 4);
+            GET_CPY_BYTES(prefix, tlv_ptr.eigrp_tlv_ip_int->destination, byte_length);
+
+            ND_PRINT("\n\t    IPv4 prefix: %15s/%u, nexthop: ",
+                   ipaddr_string(ndo, prefix),	/* local buffer, not packet data; don't use GET_IPADDR_STRING() */
+                   bit_length);
+            if (GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_int->nexthop) == 0)
+                ND_PRINT("self");
+            else
+                ND_PRINT("%s",
+                         GET_IPADDR_STRING(tlv_ptr.eigrp_tlv_ip_int->nexthop));
+
+            ND_PRINT("\n\t      delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
+                   (GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_int->delay)/100),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_int->bandwidth),
+                   GET_BE_U_3(tlv_ptr.eigrp_tlv_ip_int->mtu),
+                   GET_U_1(tlv_ptr.eigrp_tlv_ip_int->hopcount),
+                   GET_U_1(tlv_ptr.eigrp_tlv_ip_int->reliability),
+                   GET_U_1(tlv_ptr.eigrp_tlv_ip_int->load));
+            break;
+
+        case EIGRP_TLV_IP_EXT:
+            tlv_ptr.eigrp_tlv_ip_ext = (const struct eigrp_tlv_ip_ext_t *)tlv_tptr;
+            if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_ip_ext)) {
+                ND_PRINT(" (too short, < %zu)",
+                         sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_ip_ext));
+                break;
+            }
+
+            bit_length = GET_U_1(tlv_ptr.eigrp_tlv_ip_ext->plen);
+            if (bit_length > 32) {
+                ND_PRINT("\n\t    illegal prefix length %u",bit_length);
+                break;
+            }
+            byte_length = (bit_length + 7) / 8; /* variable length encoding */
+            memset(prefix, 0, 4);
+            GET_CPY_BYTES(prefix, tlv_ptr.eigrp_tlv_ip_ext->destination, byte_length);
+
+            ND_PRINT("\n\t    IPv4 prefix: %15s/%u, nexthop: ",
+                   ipaddr_string(ndo, prefix),	/* local buffer, not packet data; don't use GET_IPADDR_STRING() */
+                   bit_length);
+            if (GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->nexthop) == 0)
+                ND_PRINT("self");
+            else
+                ND_PRINT("%s",
+                         GET_IPADDR_STRING(tlv_ptr.eigrp_tlv_ip_ext->nexthop));
+
+            ND_PRINT("\n\t      origin-router %s, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u",
+                   GET_IPADDR_STRING(tlv_ptr.eigrp_tlv_ip_ext->origin_router),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->origin_as),
+                   tok2str(eigrp_ext_proto_id_values,"unknown",GET_U_1(tlv_ptr.eigrp_tlv_ip_ext->proto_id)),
+                   GET_U_1(tlv_ptr.eigrp_tlv_ip_ext->flags),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->tag),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->metric));
+
+            ND_PRINT("\n\t      delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
+                   (GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->delay)/100),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->bandwidth),
+                   GET_BE_U_3(tlv_ptr.eigrp_tlv_ip_ext->mtu),
+                   GET_U_1(tlv_ptr.eigrp_tlv_ip_ext->hopcount),
+                   GET_U_1(tlv_ptr.eigrp_tlv_ip_ext->reliability),
+                   GET_U_1(tlv_ptr.eigrp_tlv_ip_ext->load));
+            break;
+
+        case EIGRP_TLV_AT_CABLE_SETUP:
+            tlv_ptr.eigrp_tlv_at_cable_setup = (const struct eigrp_tlv_at_cable_setup_t *)tlv_tptr;
+            if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_at_cable_setup)) {
+                ND_PRINT(" (too short, < %zu)",
+                         sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_cable_setup));
+                break;
+            }
+
+            ND_PRINT("\n\t    Cable-range: %u-%u, Router-ID %u",
+                   GET_BE_U_2(tlv_ptr.eigrp_tlv_at_cable_setup->cable_start),
+                   GET_BE_U_2(tlv_ptr.eigrp_tlv_at_cable_setup->cable_end),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_at_cable_setup->router_id));
+            break;
+
+        case EIGRP_TLV_AT_INT:
+            tlv_ptr.eigrp_tlv_at_int = (const struct eigrp_tlv_at_int_t *)tlv_tptr;
+            if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_at_int)) {
+                ND_PRINT(" (too short, < %zu)",
+                         sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_int));
+                break;
+            }
+
+            ND_PRINT("\n\t     Cable-Range: %u-%u, nexthop: ",
+                   GET_BE_U_2(tlv_ptr.eigrp_tlv_at_int->cable_start),
+                   GET_BE_U_2(tlv_ptr.eigrp_tlv_at_int->cable_end));
+
+            if (GET_BE_U_4(tlv_ptr.eigrp_tlv_at_int->nexthop) == 0)
+                ND_PRINT("self");
+            else
+                ND_PRINT("%u.%u",
+                       GET_BE_U_2(&tlv_ptr.eigrp_tlv_at_int->nexthop[0]),
+                       GET_BE_U_2(&tlv_ptr.eigrp_tlv_at_int->nexthop[2]));
+
+            ND_PRINT("\n\t      delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
+                   (GET_BE_U_4(tlv_ptr.eigrp_tlv_at_int->delay)/100),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_at_int->bandwidth),
+                   GET_BE_U_3(tlv_ptr.eigrp_tlv_at_int->mtu),
+                   GET_U_1(tlv_ptr.eigrp_tlv_at_int->hopcount),
+                   GET_U_1(tlv_ptr.eigrp_tlv_at_int->reliability),
+                   GET_U_1(tlv_ptr.eigrp_tlv_at_int->load));
+            break;
+
+        case EIGRP_TLV_AT_EXT:
+            tlv_ptr.eigrp_tlv_at_ext = (const struct eigrp_tlv_at_ext_t *)tlv_tptr;
+            if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_at_ext)) {
+                ND_PRINT(" (too short, < %zu)",
+                         sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_ext));
+                break;
+            }
+
+            ND_PRINT("\n\t     Cable-Range: %u-%u, nexthop: ",
+                   GET_BE_U_2(tlv_ptr.eigrp_tlv_at_ext->cable_start),
+                   GET_BE_U_2(tlv_ptr.eigrp_tlv_at_ext->cable_end));
+
+            if (GET_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->nexthop) == 0)
+                ND_PRINT("self");
+            else
+                ND_PRINT("%u.%u",
+                       GET_BE_U_2(&tlv_ptr.eigrp_tlv_at_ext->nexthop[0]),
+                       GET_BE_U_2(&tlv_ptr.eigrp_tlv_at_ext->nexthop[2]));
+
+            ND_PRINT("\n\t      origin-router %u, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u",
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->origin_router),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->origin_as),
+                   tok2str(eigrp_ext_proto_id_values,"unknown",GET_U_1(tlv_ptr.eigrp_tlv_at_ext->proto_id)),
+                   GET_U_1(tlv_ptr.eigrp_tlv_at_ext->flags),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->tag),
+                   GET_BE_U_2(tlv_ptr.eigrp_tlv_at_ext->metric));
+
+            ND_PRINT("\n\t      delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
+                   (GET_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->delay)/100),
+                   GET_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->bandwidth),
+                   GET_BE_U_3(tlv_ptr.eigrp_tlv_at_ext->mtu),
+                   GET_U_1(tlv_ptr.eigrp_tlv_at_ext->hopcount),
+                   GET_U_1(tlv_ptr.eigrp_tlv_at_ext->reliability),
+                   GET_U_1(tlv_ptr.eigrp_tlv_at_ext->load));
+            break;
+
+            /*
+             * FIXME those are the defined TLVs that lack a decoder
+             * you are welcome to contribute code ;-)
+             */
+
+        case EIGRP_TLV_AUTH:
+        case EIGRP_TLV_SEQ:
+        case EIGRP_TLV_MCAST_SEQ:
+        case EIGRP_TLV_IPX_INT:
+        case EIGRP_TLV_IPX_EXT:
+
+        default:
+            if (ndo->ndo_vflag <= 1)
+                print_unknown_data(ndo,tlv_tptr,"\n\t    ",tlv_tlen);
+            break;
+        }
+        /* do we want to see an additionally hexdump ? */
+        if (ndo->ndo_vflag > 1)
+            print_unknown_data(ndo,tptr+sizeof(struct eigrp_tlv_header),"\n\t    ",
+                               eigrp_tlv_len-sizeof(struct eigrp_tlv_header));
+
+        tptr+=eigrp_tlv_len;
+        tlen-=eigrp_tlv_len;
+    }
+    return;
+trunc:
+    nd_print_trunc(ndo);
+}