And add eth2/3 to /proc/net/dev, that way we don't need to
create them "virtually" (which we shouldn't, for physical
interfaces).
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
also check if mtu value is lower than parent interface
fixme: vxlan interface should be 50bytes lower than outgoing interface
we need to find which interface is used (unicast/multicast/frr)
read_etc_network_interfaces used the content of
/proc/net/if_inet6 to decide whether an interface's state is
"active", which means an interface is only active when it
has an ipv6 address, thus using net.ipv6.conf.*.disable_ipv6
on an interface will cause it to show as inactive in the web
interface.
We now filter the interfaces found in /proc/dev/net by their
IFF_UP flag read via an SIOCGIFFLAGS ioctl().
Giving unknown interfaces an order-id of 0 caused them to
always be on top of the interfaces file. This is often
undesired. Instead we now only take type-ordering into
account when both interfaces which are being compared have a
known type, and otherwise only use the priority attribute.
This should result in a more stable modification of
interfaces.
Fixes#747
