From: Krister Johansen <k...@templeofstupid.com> Date: Thu, 8 Jun 2017 13:12:14 -0700
> The ipvlan code already knows how to detect when a duplicate address is > about to be assigned to an ipvlan device. However, that failure is not > propogated outward and leads to a silent failure. > > Introduce a validation step at ip address creation time and allow device > drivers to register to validate the incoming ip addresses. The ipvlan > code is the first consumer. If it detects an address in use, we can > return an error to the user before beginning to commit the new ifa in > the networking code. > > This can be especially useful if it is necessary to provision many > ipvlans in containers. The provisioning software (or operator) can use > this to detect situations where an ip address is unexpectedly in use. > > Signed-off-by: Krister Johansen <k...@templeofstupid.com> Ok, applied, thank you.
