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bgpd: encap: extend extcommunity handling

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Add code to print ENCAP communities.

Signed-off-by: Lou Berger <lberger@labn.net>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
(cherry picked from commit 5a81fc9ae610ff343902ebabc12237d6e40d91cb)
This commit is contained in:
Lou Berger 2016-01-12 13:42:00 -05:00 committed by Daniel Walton
parent 7a0ff1b285
commit 0014c3011f
2 changed files with 33 additions and 10 deletions
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37
bgpd/bgp_ecommunity.c
View File

@ -649,15 +649,34 @@ ecommunity_ecom2str (struct ecommunity *ecom, int format)
/* High-order octet of type. */
encode = *pnt++;
if (encode != ECOMMUNITY_ENCODE_AS && encode != ECOMMUNITY_ENCODE_IP
&& encode != ECOMMUNITY_ENCODE_AS4)
{
len = sprintf (str_buf + str_pnt, "?");
str_pnt += len;
first = 0;
continue;
}
switch (encode)
{
case ECOMMUNITY_ENCODE_AS:
case ECOMMUNITY_ENCODE_IP:
case ECOMMUNITY_ENCODE_AS4:
break;
case ECOMMUNITY_ENCODE_OPAQUE:
if (*pnt == ECOMMUNITY_OPAQUE_SUBTYPE_ENCAP)
{
uint16_t tunneltype;
memcpy (&tunneltype, pnt + 5, 2);
tunneltype = ntohs(tunneltype);
len = sprintf (str_buf + str_pnt, "ET:%d", tunneltype);
str_pnt += len;
first = 0;
continue;
}
/* fall through */
default:
len = sprintf (str_buf + str_pnt, "?");
str_pnt += len;
first = 0;
continue;
}
/* Low-order octet of type. */
type = *pnt++;
if (type != ECOMMUNITY_ROUTE_TARGET && type != ECOMMUNITY_SITE_ORIGIN)

6
bgpd/bgp_ecommunity.h
View File

@ -25,11 +25,15 @@ Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
#define ECOMMUNITY_ENCODE_AS 0x00
#define ECOMMUNITY_ENCODE_IP 0x01
#define ECOMMUNITY_ENCODE_AS4 0x02
#define ECOMMUNITY_ENCODE_OPAQUE 0x03
/* Low-order octet of the Extended Communityes type field. */
/* Low-order octet of the Extended Communities type field. */
#define ECOMMUNITY_ROUTE_TARGET 0x02
#define ECOMMUNITY_SITE_ORIGIN 0x03
/* Low-order octet of the Extended Communities type field for OPAQUE types */
#define ECOMMUNITY_OPAQUE_SUBTYPE_ENCAP 0x0c
/* Extended communities attribute string format. */
#define ECOMMUNITY_FORMAT_ROUTE_MAP 0
#define ECOMMUNITY_FORMAT_COMMUNITY_LIST 1