From 11787b8473ae1685d43dad809592fabc64eb8f46 Mon Sep 17 00:00:00 2001 From: Ondrej Zajicek Date: Wed, 2 Dec 2009 17:26:16 +0100 Subject: Fixes some problems in pipes. For transparent pipes, loop detection works correctly now. Pipes are now more symmetric - in both directions filtering is done in do_rte_announce(). --- proto/pipe/pipe.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) (limited to 'proto/pipe') diff --git a/proto/pipe/pipe.c b/proto/pipe/pipe.c index e57c9ef..c117f3b 100644 --- a/proto/pipe/pipe.c +++ b/proto/pipe/pipe.c @@ -31,7 +31,7 @@ #include "pipe.h" static void -pipe_send(struct pipe_proto *p, rtable *dest, net *n, rte *new, rte *old, ea_list *attrs) +pipe_send(struct pipe_proto *p, rtable *src_table, rtable *dest, net *n, rte *new, rte *old, ea_list *attrs) { struct proto *src; net *nn; @@ -80,9 +80,9 @@ pipe_send(struct pipe_proto *p, rtable *dest, net *n, rte *new, rte *old, ea_lis src = old->attrs->proto; } - dest->pipe_busy = 1; + src_table->pipe_busy = 1; rte_update(dest, nn, &p->p, (p->mode == PIPE_OPAQUE) ? &p->p : src, e); - dest->pipe_busy = 0; + src_table->pipe_busy = 0; } static void @@ -91,7 +91,7 @@ pipe_rt_notify_pri(struct proto *P, net *net, rte *new, rte *old, ea_list *attrs struct pipe_proto *p = (struct pipe_proto *) P; DBG("PIPE %c> %I/%d\n", (new ? '+' : '-'), net->n.prefix, net->n.pxlen); - pipe_send(p, p->peer, net, new, old, attrs); + pipe_send(p, p->p.table, p->peer, net, new, old, attrs); } static void @@ -100,7 +100,7 @@ pipe_rt_notify_sec(struct proto *P, net *net, rte *new, rte *old, ea_list *attrs struct pipe_proto *p = ((struct pipe_proto *) P)->phantom; DBG("PIPE %c< %I/%d\n", (new ? '+' : '-'), net->n.prefix, net->n.pxlen); - pipe_send(p, p->p.table, net, new, old, attrs); + pipe_send(p, p->peer, p->p.table, net, new, old, attrs); } static int @@ -134,7 +134,20 @@ pipe_start(struct proto *P) ph->p.rt_notify = pipe_rt_notify_sec; ph->p.proto_state = PS_UP; ph->p.core_state = ph->p.core_goal = FS_HAPPY; - ph->p.in_filter = ph->p.out_filter = FILTER_ACCEPT; /* We do all filtering on the local end */ + + /* + * Routes should be filtered in the do_rte_announce() (export + * filter for protocols). Reverse direction is handled by putting + * specified import filter to out_filter field of the phantom + * protocol. + * + * in_filter fields are not important, there is an exception in + * rte_update() to ignore it for pipes. We cannot just set + * P->in_filter to FILTER_ACCEPT, because that would break other + * things (reconfiguration, show-protocols command). + */ + ph->p.in_filter = FILTER_ACCEPT; + ph->p.out_filter = P->in_filter; /* * Connect the phantom protocol to the peer routing table, but -- cgit v1.2.3