diff options
| author | Peter Hessler <phessler@cvs.openbsd.org> | 2016-10-13 08:48:16 +0000 |
|---|---|---|
| committer | Peter Hessler <phessler@cvs.openbsd.org> | 2016-10-13 08:48:16 +0000 |
| commit | 014200566d58188bc7ded6c15549ecff9a31dcaf (patch) | |
| tree | ce8be19b65c36590da4f6c55bf4533960056b80c /usr.sbin | |
| parent | 9fa282f2df3380a67eb85fbedbe9e1fb13cc494e (diff) | |
Teach tcpdump to decode bgp path attribute draft-ietf-idr-large-community
Patch from Job Snijders, thanks!
OK sthen@
Diffstat (limited to 'usr.sbin')
| -rw-r--r-- | usr.sbin/tcpdump/print-bgp.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/usr.sbin/tcpdump/print-bgp.c b/usr.sbin/tcpdump/print-bgp.c index deba0ffeee7..3b525355dae 100644 --- a/usr.sbin/tcpdump/print-bgp.c +++ b/usr.sbin/tcpdump/print-bgp.c @@ -1,4 +1,4 @@ -/* $OpenBSD: print-bgp.c,v 1.18 2015/10/20 11:29:07 sthen Exp $ */ +/* $OpenBSD: print-bgp.c,v 1.19 2016/10/13 08:48:15 phessler Exp $ */ /* * Copyright (C) 1999 WIDE Project. @@ -134,6 +134,7 @@ struct bgp_attr { #define BGPTYPE_EXTD_COMMUNITIES 16 /* RFC4360 */ #define BGPTYPE_AS4_PATH 17 /* RFC4893 */ #define BGPTYPE_AGGREGATOR4 18 /* RFC4893 */ +#define BGPTYPE_LARGE_COMMUNITIES 30 /* draft-ietf-idr-large-community */ #define BGP_AS_SET 1 #define BGP_AS_SEQUENCE 2 @@ -265,7 +266,8 @@ static const char *bgpattr_type[] = { "MULTI_EXIT_DISC", "LOCAL_PREF", "ATOMIC_AGGREGATE", "AGGREGATOR", "COMMUNITIES", "ORIGINATOR_ID", "CLUSTER_LIST", "DPA", "ADVERTISERS", "RCID_PATH", "MP_REACH_NLRI", "MP_UNREACH_NLRI", - "EXTD_COMMUNITIES", "AS4_PATH", "AGGREGATOR4", + "EXTD_COMMUNITIES", "AS4_PATH", "AGGREGATOR4", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "LARGE_COMMUNITIES", }; #define bgp_attr_type(x) \ num_or_str(bgpattr_type, \ @@ -546,6 +548,21 @@ bgp_attr_print(const struct bgp_attr *attr, const u_char *dat, int len) p += 4; } break; + case BGPTYPE_LARGE_COMMUNITIES: + if (len == 0 || len % 12) { + printf(" invalid len"); + break; + } + while (tlen>0) { + TCHECK2(p[0], 12); + printf(" %u:%u:%u", + EXTRACT_32BITS(p), + EXTRACT_32BITS(p + 4), + EXTRACT_32BITS(p + 8)); + tlen -= 12; + p += 12; + } + break; case BGPTYPE_ORIGINATOR_ID: if (len != 4) { printf(" invalid len"); |