For some purposes (e.g. SNAT, vxlan) it might be necessary to have an
additional address just for the router which is not attached to any
interfaces. Addresses like this are typically added to the loopback
interface.
The new options "router_ip" and "router_ip6" are added to the gateway
config to allow the user to configure such addresses. It is possible to
both specify the address with or without a subnet size.
The default configuration contains the IPv4 loopback address
(127.0.0.1/8) explicitly, but this is not necessary. These addresses are
configured automatically, even if they are not present in the
configuration, so they can safely be removed, if present.
The filters of our routing daemon babeld are adjusted accordingly, so
the newly added addresses are announced correctly.
Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Christian Dresel <freifunk@dresel.systems>
Reviewed-by: Johannes Kimmel <fff@bareminimum.eu>
When neither peer_ip nor ipaddr are set, no ipv4 address for peering
interfaces is available. Therefore, no IPv4 routes can be advertised.
Other than that, a configuration like this is perfectly valid and
configuration is already continued. Therefore, the "FATAL" message might
be misleading so it is replaced with "WARNING" and clarified slightly.
Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Johannes Kimmel <fff@bareminimum.eu>
[bump PKG_RELEASE]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
babeld filters routes before announcing them with the
redistribute filters.
Users might add unknown public subnets to the client interface,
so redistribute filters have to be generated for these addresses.
Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Robert Langhammer <rlanghammer@web.de>
Tested-by: Fabian Bläse <fabian@blaese.de>
Various things have to be done for every interface on
which babeld shall run.
Those procedures are moved into functions to reduce duplicate code.
Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Robert Langhammer <rlanghammer@web.de>
Fabian Bläse