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Alexander V. Chernikov authored
P2P ifa may require 2 routes: one is the loopback route, another is the "prefix" route towards its destination. Current code marks loopback routes existence with IFA_RTSELF and "prefix" p2p routes with IFA_ROUTE. For historic reasons, we fill in ifa_dstaddr for loopback interfaces. To avoid installing the same route twice, we preemptively set IFA_RTSELF when adding "prefix" route for loopback. However, the teardown part doesn't have this hack, so we try to remove the same route twice. Fix this by checking if ifa_dstaddr is different from the ifa_addr and moving this logic into a separate function. Reviewed By: kp Differential Revision: https://reviews.freebsd.org/D29121 MFC after: 3 days
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