tree 2b606362307e751882adaf9c24c16478b4a9a814
parent 144dc696adaa677f5ceee36374eb2e57d8a4f75c
author Maxim Dounin <mdounin@mdounin.ru> 1475161565 +0300
committer Maxim Dounin <mdounin@mdounin.ru> 1475161565 +0300

Modules compatibility: down flag promoted to a bitmask.

It is to be used as a bitmask with various bits set/reset when appropriate.
Any bit set means that the peer should not be used, that is, exactly what
current checks do, no additional changes required.