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Commit 795389aa authored by Toke Høiland-Jørgensen's avatar Toke Høiland-Jørgensen Committed by Paul Gortmaker
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tunnel: Propagate ECT(1) when decapsulating as recommended by RFC6040



commit b7237487 upstream.

RFC 6040 recommends propagating an ECT(1) mark from an outer tunnel header
to the inner header if that inner header is already marked as ECT(0). When
RFC 6040 decapsulation was implemented, this case of propagation was not
added. This simply appears to be an oversight, so let's fix that.

Fixes: eccc1bb8 ("tunnel: drop packet if ECN present with not-ECT")
Reported-by: default avatarBob Briscoe <ietf@bobbriscoe.net>
Reported-by: default avatarOlivier Tilmans <olivier.tilmans@nokia-bell-labs.com>
Cc: Dave Taht <dave.taht@gmail.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: default avatarToke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
parent d61ee5d0
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