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046d883265
Extend rtnetlink.py to check the reason reported in RTM_DELROUTE: - expired: route with a 2s lifetime collected by the fib6 GC (gc_interval lowered like fib_tests.sh fib6_gc_test does); - ra-withdrawn: a single RA advertises a default route (router lifetime), an on-link prefix route (RFC 4861 prefix information option) and a route information option route (RFC 4191), then a second RA withdraws all three with zero lifetimes; the RAs are crafted over a raw ICMPv6 socket so the test does not depend on an external RA tool; - absence: a userspace deletion request records no cause and must not carry the attribute at all. Signed-off-by: Yuyang Huang <sigefriedhyy@gmail.com> Link: https://patch.msgid.link/20260808005642.26901-11-sigefriedhyy@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>