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authorMatthew Smith <mgsmith@netgate.com>2022-08-09 22:19:38 +0000
committerMatthew Smith <mgsmith@netgate.com>2022-08-19 14:13:36 +0000
commit6f1eb484c85cfdb091cbef18252a02b3310b9aae (patch)
tree5e2d31421dea41d774615aafe8cf96eedd67485a /docs/interfacing
parent47c1b1c6338c2d46173f337cf69a4b0d7f27845e (diff)
ipsec: enable UDP encap for IPv6 ESP tun protect
Type: improvement If an SA protecting an IPv6 tunnel interface has UDP encapsulation enabled, the code in esp_encrypt_inline() inserts a UDP header but does not set the next protocol or the UDP payload length, so the peer that receives the packet drops it. Set the next protocol field and the UDP payload length correctly. The port(s) for UDP encapsulation of IPsec was not registered for IPv6. Add this registration for IPv6 SAs when UDP encapsulation is enabled. Add punt handling for IPv6 IKE on NAT-T port. Add registration of linux-cp for the new punt reason. Add unit tests of IPv6 ESP w/ UDP encapsulation on tun protect Signed-off-by: Matthew Smith <mgsmith@netgate.com> Change-Id: Ibb28e423ab8c7bcea2c1964782a788a0f4da5268
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