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Implements ADD-PATH extension for BGP.

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Allows to send and receive multiple routes for one network by one BGP
session. Also contains necessary core changes to support this (routing
tables accepting several routes for one network from one protocol).
It needs some more cleanup before merging to the master branch.
This commit is contained in:
Ondrej Zajicek
2012-08-14 16:25:22 +02:00
parent d760229ab8
commit 094d2bdb79
22 changed files with 657 additions and 194 deletions
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20
proto/pipe/pipe.c
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@@ -49,7 +49,7 @@ pipe_rt_notify(struct proto *P, rtable *src_table, net *n, rte *new, rte *old, e
struct pipe_proto *p = (struct pipe_proto *) P;
struct announce_hook *ah = (src_table == P->table) ? p->peer_ahook : P->main_ahook;
rtable *dst_table = ah->table;
struct proto *src;
struct rte_src *src;
net *nn;
rte *e;
@@ -72,7 +72,7 @@ pipe_rt_notify(struct proto *P, rtable *src_table, net *n, rte *new, rte *old, e
if (p->mode == PIPE_OPAQUE)
{
a.proto = &p->p;
a.src = P->main_source;
a.source = RTS_PIPE;
}
@@ -91,16 +91,16 @@ pipe_rt_notify(struct proto *P, rtable *src_table, net *n, rte *new, rte *old, e
e->pflags = new->pflags;
}
src = new->attrs->proto;
src = a.src;
}
else
{
e = NULL;
src = old->attrs->proto;
src = old->attrs->src;
}
src_table->pipe_busy = 1;
rte_update2(ah, nn, e, (p->mode == PIPE_OPAQUE) ? &p->p : src);
rte_update2(ah, nn, e, src);
src_table->pipe_busy = 0;
}
@@ -173,6 +173,12 @@ pipe_start(struct proto *P)
p->peer_ahook->in_limit = cf->c.out_limit;
proto_reset_limit(p->peer_ahook->in_limit);
if (p->mode == PIPE_OPAQUE)
{
P->main_source = rt_get_source(P, 0);
rt_lock_source(P->main_source);
}
return PS_UP;
}
@@ -187,6 +193,10 @@ pipe_cleanup(struct proto *P)
P->main_ahook = NULL;
p->peer_ahook = NULL;
if (p->mode == PIPE_OPAQUE)
rt_unlock_source(P->main_source);
P->main_source = NULL;
rt_unlock_table(P->table);
rt_unlock_table(p->peer_table);
}