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authorJulian Elischer <jrelis@google.com>2020-10-05 20:41:50 -0700
committergVisor bot <gvisor-bot@google.com>2020-10-05 20:43:55 -0700
commit798cc6b04dc1206538b2cedb1af427e0d5468b46 (patch)
treec45c33e2bd35ccf9001a4b127af58cabf11c1228 /pkg/tcpip/hash
parenta1df7f2ed1be5cb170218c3e127a9b5f51a314fd (diff)
Fix IPv4 ICMP echo handler to copy options
The IPv4 RFCs are specific (though obtuse) that an echo response packet needs to contain all the options from the echo request, much as if it been routed back to the sender, though apparently with a new TTL. They suggest copying the incoming packet header to achieve this so that is what this patch does. PiperOrigin-RevId: 335559176
Diffstat (limited to 'pkg/tcpip/hash')
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