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-rw-r--r--print-eigrp.c532
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);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 17:20:00 +0000