Currently, all the probes of an acd instance share the same seed
state. This means that the state is updated by all the probes, and as
a consequence they get different jitters for the wait timeouts;
therefore the order in which addresses become available (and are
configured on the interface) is not deterministic.
Keep a separate seed state for each probe, initialized from the acd
seed. This ensures that all the probes use the same timeouts when
sending probe requests, and that in case of no collision, addresses
are available in the order of probe start.
n-acd pull request: https://github.com/nettools/n-acd/pull/10
Usually we want no difference between the upstream project that we fork
via git-subtree, and our copy. However, for the subprojects, we need to
patch them. Do it.
If you know a better way, that allows to overwriting the subprojects
please send a patch.
N_ACD_E_DROPPED is an error code of n-acd, albeit internal. But such codes are returned
as postive values, unlike error codes from errno.h (which are negative).
Fix comparing for N_ACD_E_DROPPED, otherwise the error gets propagate to the caller
when we should handle it internally.
