diff options
| author | Donatas Abraitis <donatas@opensourcerouting.org> | 2023-10-23 11:24:12 +0300 |
|---|---|---|
| committer | Donatas Abraitis <donatas@opensourcerouting.org> | 2023-10-30 08:33:05 +0200 |
| commit | 9af596648fee6618dbaab7eb2b1b5625d23445dd (patch) | |
| tree | 0bed434b1ad1b0c7a3ab8a1f957ffcb6b43b1782 | |
| parent | 21c38aeae724af96f936a0a7365df0882d2eaded (diff) | |
ospf6d: Set loopback interface cost to 0
https://www.rfc-editor.org/rfc/rfc5340.html#page-37 states:
If the interface type is point-
to-multipoint or the interface is in the state Loopback, the
global scope IPv6 addresses associated with the interface (if any)
are copied into the intra-area-prefix-LSA with the PrefixOptions
LA-bit set, the PrefixLength set to 128, and the metric set to 0.
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
| -rw-r--r-- | ospf6d/ospf6_interface.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/ospf6d/ospf6_interface.c b/ospf6d/ospf6_interface.c index 0fb3d29e25..36680ea87b 100644 --- a/ospf6d/ospf6_interface.c +++ b/ospf6d/ospf6_interface.c @@ -128,9 +128,19 @@ static uint8_t ospf6_default_iftype(struct interface *ifp) static uint32_t ospf6_interface_get_cost(struct ospf6_interface *oi) { /* If all else fails, use default OSPF cost */ - uint32_t cost; + uint32_t cost = 0; uint32_t bw, refbw; struct ospf6 *ospf6; + + /* If the interface type is point-to-multipoint or the interface + * is in the state Loopback, the global scope IPv6 addresses + * associated with the interface (if any) are copied into the + * intra-area-prefix-LSA with the PrefixOptions LA-bit set, the + * PrefixLength set to 128, and the metric set to 0. + */ + if (if_is_loopback(oi->interface)) + return cost; + /* interface speed and bw can be 0 in some platforms, * use ospf default bw. If bw is configured then it would * be used. |