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add support for the GENERAL_PARM and SW_VERSION TLV

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This commit is contained in:
hannes 2004-04-30 23:52:00 +00:00
parent 98cab678a8
commit 1829bc0edb
1 changed files with 51 additions and 8 deletions
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59
print-eigrp.c
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@ -16,7 +16,7 @@
#ifndef lint
static const char rcsid[] _U_ =
"@(#) $Header: /tcpdump/master/tcpdump/print-eigrp.c,v 1.1 2004-04-30 22:22:04 hannes Exp $";
"@(#) $Header: /tcpdump/master/tcpdump/print-eigrp.c,v 1.2 2004-04-30 23:52:00 hannes Exp $";
#endif
#ifdef HAVE_CONFIG_H
@ -73,6 +73,7 @@ struct eigrp_tlv_header {
};
#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
@ -86,6 +87,7 @@ struct eigrp_tlv_header {
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"},
@ -99,13 +101,35 @@ static const struct tok eigrp_tlv_values[] = {
{ 0, NULL}
};
struct eigrp_tlv_general_parm {
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];
};
struct eigrp_tlv_sw_version {
u_int8_t ios_major;
u_int8_t ios_minor;
u_int8_t eigrp_major;
u_int8_t eigrp_minor;
};
void
eigrp_print(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,*obj_tptr;
int tlen,eigrp_tlv_len,eigrp_tlv_type,obj_tlen;
const u_char *tptr,*tlv_tptr;
int tlen,eigrp_tlv_len,eigrp_tlv_type,tlv_tlen;
union {
const struct eigrp_tlv_general_parm *eigrp_tlv_general_parm;
const struct eigrp_tlv_sw_version *eigrp_tlv_sw_version;
} tlv_ptr;
tptr=pptr;
eigrp_com_header = (const struct eigrp_common_header *)pptr;
@ -167,8 +191,8 @@ eigrp_print(register const u_char *pptr, register u_int len) {
eigrp_tlv_type,
eigrp_tlv_len);
obj_tptr=tptr+sizeof(struct eigrp_tlv_header);
obj_tlen=eigrp_tlv_len-sizeof(struct eigrp_tlv_header);
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))
@ -176,14 +200,33 @@ eigrp_print(register const u_char *pptr, register u_int len) {
switch(eigrp_tlv_type) {
case EIGRP_TLV_GENERAL_PARM:
tlv_ptr.eigrp_tlv_general_parm = (const struct eigrp_tlv_general_parm *)tlv_tptr;
printf("\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);
break;
case EIGRP_TLV_SW_VERSION:
tlv_ptr.eigrp_tlv_sw_version = (const struct eigrp_tlv_sw_version *)tlv_tptr;
printf("\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);
break;
/*
* FIXME those are the defined TLVs that lack a decoder
* you are welcome to contribute code ;-)
*/
case EIGRP_TLV_GENERAL_PARM:
case EIGRP_TLV_AUTH:
case EIGRP_TLV_SEQ:
case EIGRP_TLV_SW_VERSION:
case EIGRP_TLV_MCAST_SEQ:
case EIGRP_TLV_IP_INT:
case EIGRP_TLV_IP_EXT:
@ -195,7 +238,7 @@ eigrp_print(register const u_char *pptr, register u_int len) {
default:
if (vflag <= 1)
print_unknown_data(obj_tptr,"\n\t ",obj_tlen);
print_unknown_data(tlv_tptr,"\n\t ",tlv_tlen);
break;
}
/* do we want to see an additionally hexdump ? */