* FOR A PARTICULAR PURPOSE.
*/
-#ifndef lint
-static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-eigrp.c,v 1.4 2004-05-01 21:07:39 hannes Exp $";
-#endif
-
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tcpdump-stdinc.h>
-#include <stdio.h>
-#include <stdlib.h>
#include <string.h>
-#include "interface.h"
+#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
*/
struct eigrp_common_header {
- u_int8_t version;
- u_int8_t opcode;
- u_int8_t checksum[2];
- u_int8_t flags[4];
- u_int8_t seq[4];
- u_int8_t ack[4];
- u_int8_t asn[4];
+ uint8_t version;
+ uint8_t opcode;
+ uint8_t checksum[2];
+ uint8_t flags[4];
+ uint8_t seq[4];
+ uint8_t ack[4];
+ uint8_t asn[4];
};
#define EIGRP_VERSION 2
};
struct eigrp_tlv_header {
- u_int8_t type[2];
- u_int8_t length[2];
+ uint8_t type[2];
+ uint8_t length[2];
};
#define EIGRP_TLV_GENERAL_PARM 0x0001
};
struct eigrp_tlv_general_parm_t {
- u_int8_t k1;
- u_int8_t k2;
- u_int8_t k3;
- u_int8_t k4;
- u_int8_t k5;
- u_int8_t res;
- u_int8_t holdtime[2];
-};
+ uint8_t k1;
+ uint8_t k2;
+ uint8_t k3;
+ uint8_t k4;
+ uint8_t k5;
+ uint8_t res;
+ uint8_t holdtime[2];
+};
struct eigrp_tlv_sw_version_t {
- u_int8_t ios_major;
- u_int8_t ios_minor;
- u_int8_t eigrp_major;
- u_int8_t eigrp_minor;
-};
+ uint8_t ios_major;
+ uint8_t ios_minor;
+ uint8_t eigrp_major;
+ uint8_t eigrp_minor;
+};
struct eigrp_tlv_ip_int_t {
- u_int8_t nexthop[4];
- u_int8_t delay[4];
- u_int8_t bandwidth[4];
- u_int8_t mtu[3];
- u_int8_t hopcount;
- u_int8_t reliability;
- u_int8_t load;
- u_int8_t reserved[2];
- u_int8_t plen;
- u_int8_t destination; /* variable length [1-4] bytes encoding */
-};
+ uint8_t nexthop[4];
+ uint8_t delay[4];
+ uint8_t bandwidth[4];
+ uint8_t mtu[3];
+ uint8_t hopcount;
+ uint8_t reliability;
+ uint8_t load;
+ uint8_t reserved[2];
+ uint8_t plen;
+ uint8_t destination; /* variable length [1-4] bytes encoding */
+};
struct eigrp_tlv_ip_ext_t {
- u_int8_t nexthop[4];
- u_int8_t origin_router[4];
- u_int8_t origin_as[4];
- u_int8_t tag[4];
- u_int8_t metric[4];
- u_int8_t reserved[2];
- u_int8_t proto_id;
- u_int8_t flags;
- u_int8_t delay[4];
- u_int8_t bandwidth[4];
- u_int8_t mtu[3];
- u_int8_t hopcount;
- u_int8_t reliability;
- u_int8_t load;
- u_int8_t reserved2[2];
- u_int8_t plen;
- u_int8_t destination; /* variable length [1-4] bytes encoding */
-};
+ uint8_t nexthop[4];
+ uint8_t origin_router[4];
+ uint8_t origin_as[4];
+ uint8_t tag[4];
+ uint8_t metric[4];
+ uint8_t reserved[2];
+ uint8_t proto_id;
+ uint8_t flags;
+ uint8_t delay[4];
+ uint8_t bandwidth[4];
+ uint8_t mtu[3];
+ uint8_t hopcount;
+ uint8_t reliability;
+ uint8_t load;
+ uint8_t reserved2[2];
+ uint8_t plen;
+ uint8_t destination; /* variable length [1-4] bytes encoding */
+};
+
+struct eigrp_tlv_at_cable_setup_t {
+ uint8_t cable_start[2];
+ uint8_t cable_end[2];
+ uint8_t router_id[4];
+};
+
+struct eigrp_tlv_at_int_t {
+ uint8_t nexthop[4];
+ uint8_t delay[4];
+ uint8_t bandwidth[4];
+ uint8_t mtu[3];
+ uint8_t hopcount;
+ uint8_t reliability;
+ uint8_t load;
+ uint8_t reserved[2];
+ uint8_t cable_start[2];
+ uint8_t cable_end[2];
+};
+
+struct eigrp_tlv_at_ext_t {
+ uint8_t nexthop[4];
+ uint8_t origin_router[4];
+ uint8_t origin_as[4];
+ uint8_t tag[4];
+ uint8_t proto_id;
+ uint8_t flags;
+ uint8_t metric[2];
+ uint8_t delay[4];
+ uint8_t bandwidth[4];
+ uint8_t mtu[3];
+ uint8_t hopcount;
+ uint8_t reliability;
+ uint8_t load;
+ uint8_t reserved2[2];
+ uint8_t cable_start[2];
+ uint8_t cable_end[2];
+};
static const struct tok eigrp_ext_proto_id_values[] = {
{ 0x01, "IGRP" },
};
void
-eigrp_print(register const u_char *pptr, register u_int len) {
-
+eigrp_print(netdissect_options *ndo, register const u_char *pptr, register 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;
- int tlen,eigrp_tlv_len,eigrp_tlv_type,tlv_tlen,byte_length, bit_length;
- u_int8_t prefix[4];
+ 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;
tptr=pptr;
eigrp_com_header = (const struct eigrp_common_header *)pptr;
- TCHECK(*eigrp_com_header);
+ ND_TCHECK(*eigrp_com_header);
/*
* Sanity checking of the header.
*/
if (eigrp_com_header->version != EIGRP_VERSION) {
- printf("EIGRP version %u packet not supported",eigrp_com_header->version);
+ ND_PRINT((ndo, "EIGRP version %u packet not supported",eigrp_com_header->version));
return;
}
/* in non-verbose mode just lets print the basic Message Type*/
- if (vflag < 1) {
- printf("EIGRP %s, length: %u",
+ if (ndo->ndo_vflag < 1) {
+ ND_PRINT((ndo, "EIGRP %s, length: %u",
tok2str(eigrp_opcode_values, "unknown (%u)",eigrp_com_header->opcode),
- len);
+ len));
return;
}
tlen=len-sizeof(struct eigrp_common_header);
/* FIXME print other header info */
- printf("\n\tEIGRP v%u, opcode: %s (%u), chksum: 0x%04x, Flags: [%s]\n\tseq: 0x%08x, ack: 0x%08x, AS: %u, length: %u",
+ ND_PRINT((ndo, "\n\tEIGRP v%u, opcode: %s (%u), chksum: 0x%04x, Flags: [%s]\n\tseq: 0x%08x, ack: 0x%08x, AS: %u, length: %u",
eigrp_com_header->version,
tok2str(eigrp_opcode_values, "unknown, type: %u",eigrp_com_header->opcode),
eigrp_com_header->opcode,
EXTRACT_32BITS(&eigrp_com_header->seq),
EXTRACT_32BITS(&eigrp_com_header->ack),
EXTRACT_32BITS(&eigrp_com_header->asn),
- tlen);
+ tlen));
tptr+=sizeof(const struct eigrp_common_header);
while(tlen>0) {
/* did we capture enough for fully decoding the object header ? */
- if (!TTEST2(*tptr, sizeof(struct eigrp_tlv_header)))
- goto trunc;
+ ND_TCHECK2(*tptr, sizeof(struct eigrp_tlv_header));
eigrp_tlv_header = (const struct eigrp_tlv_header *)tptr;
eigrp_tlv_len=EXTRACT_16BITS(&eigrp_tlv_header->length);
eigrp_tlv_type=EXTRACT_16BITS(&eigrp_tlv_header->type);
- if (eigrp_tlv_len == 0 || eigrp_tlv_len > tlen) {
- print_unknown_data(tptr+sizeof(sizeof(struct eigrp_tlv_header)),"\n\t ",tlen);
+ 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;
}
- printf("\n\t %s TLV (0x%04x), length: %u",
+ ND_PRINT((ndo, "\n\t %s TLV (0x%04x), length: %u",
tok2str(eigrp_tlv_values,
"Unknown",
eigrp_tlv_type),
eigrp_tlv_type,
- eigrp_tlv_len);
+ eigrp_tlv_len));
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 ? */
- if (!TTEST2(*tptr, eigrp_tlv_len))
- goto trunc;
+ ND_TCHECK2(*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;
- printf("\n\t holdtime: %us, k1 %u, k2 %u, k3 %u, k4 %u, k5 %u",
+ ND_PRINT((ndo, "\n\t holdtime: %us, k1 %u, k2 %u, k3 %u, k4 %u, k5 %u",
EXTRACT_16BITS(tlv_ptr.eigrp_tlv_general_parm->holdtime),
tlv_ptr.eigrp_tlv_general_parm->k1,
tlv_ptr.eigrp_tlv_general_parm->k2,
tlv_ptr.eigrp_tlv_general_parm->k3,
tlv_ptr.eigrp_tlv_general_parm->k4,
- tlv_ptr.eigrp_tlv_general_parm->k5);
+ 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;
- printf("\n\t IOS version: %u.%u, EIGRP version %u.%u",
+ ND_PRINT((ndo, "\n\t IOS version: %u.%u, EIGRP version %u.%u",
tlv_ptr.eigrp_tlv_sw_version->ios_major,
tlv_ptr.eigrp_tlv_sw_version->ios_minor,
tlv_ptr.eigrp_tlv_sw_version->eigrp_major,
- tlv_ptr.eigrp_tlv_sw_version->eigrp_minor);
+ 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;
bit_length = tlv_ptr.eigrp_tlv_ip_int->plen;
- if (bit_length < 0 || bit_length > 32) {
- printf("\n\t illegal prefix length %u",bit_length);
+ if (bit_length > 32) {
+ ND_PRINT((ndo, "\n\t illegal prefix length %u",bit_length));
break;
}
byte_length = (bit_length + 7) / 8; /* variable length encoding */
memset(prefix, 0, 4);
memcpy(prefix,&tlv_ptr.eigrp_tlv_ip_int->destination,byte_length);
- printf("\n\t IPv4 prefix: %15s/%u, nexthop: ",
- ipaddr_string(prefix),
- bit_length);
+ ND_PRINT((ndo, "\n\t IPv4 prefix: %15s/%u, nexthop: ",
+ ipaddr_string(ndo, prefix),
+ bit_length));
if (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_int->nexthop) == 0)
- printf("self");
+ ND_PRINT((ndo, "self"));
else
- printf("%s",ipaddr_string(EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_int->nexthop)));
+ ND_PRINT((ndo, "%s",ipaddr_string(ndo, &tlv_ptr.eigrp_tlv_ip_int->nexthop)));
- printf("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
+ ND_PRINT((ndo, "\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
(EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_int->delay)/100),
EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_int->bandwidth),
EXTRACT_24BITS(&tlv_ptr.eigrp_tlv_ip_int->mtu),
tlv_ptr.eigrp_tlv_ip_int->hopcount,
tlv_ptr.eigrp_tlv_ip_int->reliability,
- tlv_ptr.eigrp_tlv_ip_int->load);
+ 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;
bit_length = tlv_ptr.eigrp_tlv_ip_ext->plen;
- if (bit_length < 0 || bit_length > 32) {
- printf("\n\t illegal prefix length %u",bit_length);
+ if (bit_length > 32) {
+ ND_PRINT((ndo, "\n\t illegal prefix length %u",bit_length));
break;
}
byte_length = (bit_length + 7) / 8; /* variable length encoding */
memset(prefix, 0, 4);
memcpy(prefix,&tlv_ptr.eigrp_tlv_ip_ext->destination,byte_length);
- printf("\n\t IPv4 prefix: %15s/%u, nexthop: ",
- ipaddr_string(prefix),
- bit_length);
+ ND_PRINT((ndo, "\n\t IPv4 prefix: %15s/%u, nexthop: ",
+ ipaddr_string(ndo, prefix),
+ bit_length));
if (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_ext->nexthop) == 0)
- printf("self");
+ ND_PRINT((ndo, "self"));
else
- printf("%s",ipaddr_string(EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_ext->nexthop)));
+ ND_PRINT((ndo, "%s",ipaddr_string(ndo, &tlv_ptr.eigrp_tlv_ip_ext->nexthop)));
- printf("\n\t origin-router %s, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u",
- ipaddr_string(tlv_ptr.eigrp_tlv_ip_ext->origin_router),
+ ND_PRINT((ndo, "\n\t origin-router %s, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u",
+ ipaddr_string(ndo, tlv_ptr.eigrp_tlv_ip_ext->origin_router),
EXTRACT_32BITS(tlv_ptr.eigrp_tlv_ip_ext->origin_as),
tok2str(eigrp_ext_proto_id_values,"unknown",tlv_ptr.eigrp_tlv_ip_ext->proto_id),
tlv_ptr.eigrp_tlv_ip_ext->flags,
EXTRACT_32BITS(tlv_ptr.eigrp_tlv_ip_ext->tag),
- EXTRACT_32BITS(tlv_ptr.eigrp_tlv_ip_ext->metric));
+ EXTRACT_32BITS(tlv_ptr.eigrp_tlv_ip_ext->metric)));
- printf("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
+ ND_PRINT((ndo, "\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
(EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_ext->delay)/100),
EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_ext->bandwidth),
EXTRACT_24BITS(&tlv_ptr.eigrp_tlv_ip_ext->mtu),
tlv_ptr.eigrp_tlv_ip_ext->hopcount,
tlv_ptr.eigrp_tlv_ip_ext->reliability,
- tlv_ptr.eigrp_tlv_ip_ext->load);
+ 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;
+
+ ND_PRINT((ndo, "\n\t Cable-range: %u-%u, Router-ID %u",
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_cable_setup->cable_start),
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_cable_setup->cable_end),
+ EXTRACT_32BITS(&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;
+
+ ND_PRINT((ndo, "\n\t Cable-Range: %u-%u, nexthop: ",
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_int->cable_start),
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_int->cable_end)));
+
+ if (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_int->nexthop) == 0)
+ ND_PRINT((ndo, "self"));
+ else
+ ND_PRINT((ndo, "%u.%u",
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_int->nexthop),
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_int->nexthop[2])));
+
+ ND_PRINT((ndo, "\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
+ (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_int->delay)/100),
+ EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_int->bandwidth),
+ EXTRACT_24BITS(&tlv_ptr.eigrp_tlv_at_int->mtu),
+ tlv_ptr.eigrp_tlv_at_int->hopcount,
+ tlv_ptr.eigrp_tlv_at_int->reliability,
+ 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;
+
+ ND_PRINT((ndo, "\n\t Cable-Range: %u-%u, nexthop: ",
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_ext->cable_start),
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_ext->cable_end)));
+
+ if (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_ext->nexthop) == 0)
+ ND_PRINT((ndo, "self"));
+ else
+ ND_PRINT((ndo, "%u.%u",
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_ext->nexthop),
+ EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_ext->nexthop[2])));
+
+ ND_PRINT((ndo, "\n\t origin-router %u, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u",
+ EXTRACT_32BITS(tlv_ptr.eigrp_tlv_at_ext->origin_router),
+ EXTRACT_32BITS(tlv_ptr.eigrp_tlv_at_ext->origin_as),
+ tok2str(eigrp_ext_proto_id_values,"unknown",tlv_ptr.eigrp_tlv_at_ext->proto_id),
+ tlv_ptr.eigrp_tlv_at_ext->flags,
+ EXTRACT_32BITS(tlv_ptr.eigrp_tlv_at_ext->tag),
+ EXTRACT_16BITS(tlv_ptr.eigrp_tlv_at_ext->metric)));
+
+ ND_PRINT((ndo, "\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u",
+ (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_ext->delay)/100),
+ EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_ext->bandwidth),
+ EXTRACT_24BITS(&tlv_ptr.eigrp_tlv_at_ext->mtu),
+ tlv_ptr.eigrp_tlv_at_ext->hopcount,
+ tlv_ptr.eigrp_tlv_at_ext->reliability,
+ tlv_ptr.eigrp_tlv_at_ext->load));
break;
/*
case EIGRP_TLV_AUTH:
case EIGRP_TLV_SEQ:
case EIGRP_TLV_MCAST_SEQ:
- case EIGRP_TLV_AT_INT:
- case EIGRP_TLV_AT_EXT:
- case EIGRP_TLV_AT_CABLE_SETUP:
case EIGRP_TLV_IPX_INT:
case EIGRP_TLV_IPX_EXT:
default:
- if (vflag <= 1)
- print_unknown_data(tlv_tptr,"\n\t ",tlv_tlen);
+ 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 (vflag > 1)
- print_unknown_data(tptr+sizeof(sizeof(struct eigrp_tlv_header)),"\n\t ",
+ 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;
}
return;
trunc:
- printf("\n\t\t packet exceeded snapshot");
+ ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
}
projects / tcpdump / blobdiff