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List: quagga-dev
Subject: [quagga-dev 5457] [PATCH 1/6] Set destination for PtP links to
From: Joakim Tjernlund <Joakim.Tjernlund () transmode ! se>
Date: 2008-06-03 17:41:36
Message-ID: 1212514901-29168-2-git-send-email-Joakim.Tjernlund () transmode ! se
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See RFC 2328, chap 8.1 for details:
"The IP destination address for the packet is selected as
follows. On physical point-to-point networks, the IP
destination is always set to the address AllSPFRouters."
Without this, it won't be possible to establish adjacencies on
multiple unnumbered links to the same router.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
---
ospfd/ospf_packet.c | 20 ++++++++++++++------
1 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c
index a778a50..ed342e7 100644
--- a/ospfd/ospf_packet.c
+++ b/ospfd/ospf_packet.c
@@ -3151,7 +3151,10 @@ ospf_db_desc_send (struct ospf_neighbor *nbr)
op->length = length;
/* Decide destination address. */
- op->dst = nbr->address.u.prefix4;
+ if (oi->type == OSPF_IFTYPE_POINTOPOINT)
+ op->dst.s_addr = htonl (OSPF_ALLSPFROUTERS);
+ else
+ op->dst = nbr->address.u.prefix4;
/* Add packet to the interface output queue. */
ospf_packet_add (oi, op);
@@ -3210,7 +3213,10 @@ ospf_ls_req_send (struct ospf_neighbor *nbr)
op->length = length;
/* Decide destination address. */
- op->dst = nbr->address.u.prefix4;
+ if (oi->type == OSPF_IFTYPE_POINTOPOINT)
+ op->dst.s_addr = htonl (OSPF_ALLSPFROUTERS);
+ else
+ op->dst = nbr->address.u.prefix4;
/* Add packet to the interface output queue. */
ospf_packet_add (oi, op);
@@ -3326,7 +3332,10 @@ ospf_ls_upd_queue_send (struct ospf_interface *oi, struct list *update,
op->length = length;
/* Decide destination address. */
- op->dst.s_addr = addr.s_addr;
+ if (oi->type == OSPF_IFTYPE_POINTOPOINT)
+ op->dst.s_addr = htonl (OSPF_ALLSPFROUTERS);
+ else
+ op->dst.s_addr = addr.s_addr;
/* Add packet to the interface output queue. */
ospf_packet_add (oi, op);
@@ -3403,13 +3412,12 @@ ospf_ls_upd_send (struct ospf_neighbor *nbr, struct list *update, int flag)
/* Decide destination address. */
if (oi->type == OSPF_IFTYPE_VIRTUALLINK)
p.prefix = oi->vl_data->peer_addr;
+ else if (oi->type == OSPF_IFTYPE_POINTOPOINT)
+ p.prefix.s_addr = htonl (OSPF_ALLSPFROUTERS);
else if (flag == OSPF_SEND_PACKET_DIRECT)
p.prefix = nbr->address.u.prefix4;
else if (oi->state == ISM_DR || oi->state == ISM_Backup)
p.prefix.s_addr = htonl (OSPF_ALLSPFROUTERS);
- else if ((oi->type == OSPF_IFTYPE_POINTOPOINT)
- && (flag == OSPF_SEND_PACKET_INDIRECT))
- p.prefix.s_addr = htonl (OSPF_ALLSPFROUTERS);
else if (oi->type == OSPF_IFTYPE_POINTOMULTIPOINT)
p.prefix.s_addr = htonl (OSPF_ALLSPFROUTERS);
else
--
1.5.5.1
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