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support for BGP graceful restart draft-ietf-idr-restart-05

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This commit is contained in:
hannes 2002-10-11 10:33:09 +00:00
parent 87b71d4a5d
commit d6dc3a1240
1 changed files with 26 additions and 2 deletions
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28
print-bgp.c
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@ -36,7 +36,7 @@
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /tcpdump/master/tcpdump/print-bgp.c,v 1.51 2002-10-05 10:45:27 hannes Exp $";
"@(#) $Header: /tcpdump/master/tcpdump/print-bgp.c,v 1.52 2002-10-11 10:33:09 hannes Exp $";
#endif
#include <tcpdump-stdinc.h>
@ -174,11 +174,13 @@ static struct tok bgp_opt_values[] = {
#define BGP_CAPCODE_MP 1
#define BGP_CAPCODE_RR 2
#define BGP_CAPCODE_RESTART 64 /* draft-ietf-idr-restart-05 */
#define BGP_CAPCODE_RR_CISCO 128
static struct tok bgp_capcode_values[] = {
{ BGP_CAPCODE_MP, "Multiprotocol Extensions"},
{ BGP_CAPCODE_RR, "Route Refresh"},
{ BGP_CAPCODE_RESTART, "Graceful Restart"},
{ BGP_CAPCODE_RR_CISCO, "Route Refresh (Cisco)"},
{ 0, NULL}
};
@ -1086,7 +1088,7 @@ bgp_open_print(const u_char *dat, int length)
struct bgp_opt bgpopt;
int hlen;
const u_char *opt;
int i,cap_type,cap_len;
int i,cap_type,cap_len,tcap_len,cap_offset;
TCHECK2(dat[0], BGP_OPEN_SIZE);
memcpy(&bgpo, dat, BGP_OPEN_SIZE);
@ -1125,6 +1127,7 @@ bgp_open_print(const u_char *dat, int length)
case BGP_OPT_CAP:
cap_type=opt[i+BGP_OPT_SIZE];
cap_len=opt[i+BGP_OPT_SIZE+1];
tcap_len=cap_len;
printf("\n\t %s, length: %u",
tok2str(bgp_capcode_values,"Unknown", cap_type),
cap_len);
@ -1136,14 +1139,35 @@ bgp_open_print(const u_char *dat, int length)
tok2str(bgp_safi_values,"Unknown", opt[i+BGP_OPT_SIZE+5]),
opt[i+BGP_OPT_SIZE+5]);
break;
case BGP_CAPCODE_RESTART:
printf("\n\t\tRestart Flags: [%s], Restart Time %us",
(opt[i+BGP_OPT_SIZE+2]) ? "R" : "none",
EXTRACT_16BITS(opt+i+BGP_OPT_SIZE+2)&0xfff);
tcap_len-=2;
cap_offset=4;
while(tcap_len>=4) {
printf("\n\t\t AFI %s (%u), SAFI %s (%u), Forwarding state preserved: %s",
tok2str(bgp_afi_values,"Unknown", EXTRACT_16BITS(opt+i+BGP_OPT_SIZE+cap_offset)),
EXTRACT_16BITS(opt+i+BGP_OPT_SIZE+cap_offset),
tok2str(bgp_safi_values,"Unknown", opt[i+BGP_OPT_SIZE+cap_offset+2]),
opt[i+BGP_OPT_SIZE+cap_offset+2],
((opt[i+BGP_OPT_SIZE+cap_offset+3])&0x80) ? "yes" : "no" );
tcap_len-=4;
cap_offset+=4;
}
break;
case BGP_CAPCODE_RR:
case BGP_CAPCODE_RR_CISCO:
break;
default:
printf("\n\t\tno decoder for Capability %u",
cap_type);
if (vflag <= 1)
print_unknown_data(&opt[i+BGP_OPT_SIZE+2],"\n\t\t",cap_len);
break;
}
if (vflag > 1)
print_unknown_data(&opt[i+BGP_OPT_SIZE+2],"\n\t\t",cap_len);
break;
case BGP_OPT_AUTH:
default: