On dual-stack sockets, both v4 & v6 PKTINFO cmsg can be returned in recvmsg
arthurpi opened this issue · comments
Description
On linux, on a dual stack socket (e.g. an AF_INET6 socket with an IPv4-mapped IPv6 address), if both IP_PKTINFO and IPV6_RECVPKTINFO options are enabled, then both v4 and v6 control message should be returned by recvmsg.
Steps to reproduce
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runsc version
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docker version (if using docker)
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uname
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kubectl (if using Kubernetes)
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repo state (if built from source)
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runsc debug logs (if available)
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