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Merge branch 'ICMP-error-handling-for-UDP-tunnels'

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Stefano Brivio says:

====================
ICMP error handling for UDP tunnels

This series introduces ICMP error handling for UDP tunnels and
encapsulations and related selftests. We need to handle ICMP errors to
support PMTU discovery and route redirection -- this support is entirely
missing right now:

- patch 1/11 adds a socket lookup for UDP tunnels that use, by design,
  the same destination port on both endpoints -- i.e. VXLAN and GENEVE
- patches 2/11 to 7/11 are specific to VxLAN and GENEVE
- patches 8/11 and 9/11 add infrastructure for lookup of encapsulations
  where sent packets cannot be matched via receiving socket lookup, i.e.
  FoU and GUE
- patches 10/11 and 11/11 are specific to FoU and GUE

v2: changes are listed in the single patches
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-11-08 17:13:09 -08:00
commit 20da4ef91c
40 changed files with 1083 additions and 166 deletions
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