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BGP: Fix extended messages

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Change attribute length limit to handle extended (64 kB) messages.

Do not mix updates and withdraws (RFC 7606).
This commit is contained in:
Ondrej Zajicek (work) 2016-07-11 20:41:32 +02:00
parent f0b822a831
commit ea0cb652e9
1 changed files with 4 additions and 5 deletions
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9
proto/bgp/packets.c
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@ -369,7 +369,7 @@ bgp_create_update(struct bgp_conn *conn, byte *buf)
}
put_u16(buf, wd_size);
if (remains >= 3072)
if (!wd_size)
{
while ((buck = (struct bgp_bucket *) HEAD(p->bucket_queue))->send_node.next)
{
@ -382,7 +382,7 @@ bgp_create_update(struct bgp_conn *conn, byte *buf)
}
DBG("Processing bucket %p\n", buck);
a_size = bgp_encode_attrs(p, w+2, buck->eattrs, 2048);
a_size = bgp_encode_attrs(p, w+2, buck->eattrs, remains - 1024);
if (a_size < 0)
{
@ -461,8 +461,7 @@ bgp_create_update(struct bgp_conn *conn, byte *buf)
w += size;
remains -= size;
}
if (remains >= 3072)
else
{
while ((buck = (struct bgp_bucket *) HEAD(p->bucket_queue))->send_node.next)
{
@ -478,7 +477,7 @@ bgp_create_update(struct bgp_conn *conn, byte *buf)
rem_stored = remains;
w_stored = w;
size = bgp_encode_attrs(p, w, buck->eattrs, 2048);
size = bgp_encode_attrs(p, w, buck->eattrs, remains - 1024);
if (size < 0)
{
log(L_ERR "%s: Attribute list too long, skipping corresponding routes", p->p.name);