This patch changes the way Infix DHCP and ZerocConf clients set their
routes in the system. Instead of setting them directly in the kernel
we ask FRR staticd to set them for us.
The reason for this change is to be able to override routes from these
protocols with locally set static routes. The routes are now set with
a distance of 5 and 254, respectively, while static routes by default
have a distance of 1. In contrast, kernel routes are always treated
by Frr as distance 0, i.e., they are preferred over static routes.
Finally, this patch drops the use of Linux legacy interface aliases, or
colon interfaces, in an effort to reduce confusion for end users. This
may give some odd results if using older tools like ifconfig, so we
recommend using 'show interfaces' or 'ipb a' instead.
Fixes#640
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Apply a distance adjustment to routes retrieved from IPv4LL/ZeroConf and
DHCP to ensure that Frr (Zebra) can compare other protocol routes, e.g.,
static. Without this Frr will consider all routes read from the kernel
to have a protocol distance of 0, meaning better than static routes that
have a distance of 1.
Initial proposal to fix issue #640
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
- We know we always have iproute2 tools
- We only use one ipv4ll client per interface, so UNBIND can be
simplified to flush ifname:avahi
- Log all events handled by script for troubleshooting
Note: on BIND event we may be called without first getting UNBIND on
previous address, hence the flush there too.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
With Classic builds out of the way we can move everything back to common
again to simplify and reduce our collective cognitive overhead a bit.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Set the IP origin "random" for avahi IPv4LL addresses. The reason we
use random and not link-layer for link-local IPv4 addresses is the
fact that they are not based on link-layer info, such as IPv6 eui64
generated LL addresses.
Signed-off-by: Richard Alpe <richard@bit42.se>
Add a pristine copy of the current version of avahi-autoipd.action.
This script will be modified by us in later commits.
Signed-off-by: Richard Alpe <richard@bit42.se>
Joachim Wiberg