This is an implementation of CARP for the Linux kernel. It's currently very rough and based off of the code found from the netdev mailing list circa 2004. It's been forward-ported to work (partially) on modern kernels.

A rough plan is:

• Add sysfs and procfs interfaces
• Add the demote stuff that obsd CARP has
• Change the INIT state so it acts correctly.
• Allow a carp interface to be started without a backing device
• Ensure everything is async

Known Issues:

• carp devices can use the same vhid
• Causes kernel oops if eth0 isn't configured but does exist