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The RDMA CM uses a single port space for all associated (tcp, udp, etc.) port bindings, regardless of the address family that the user binds to. The result is that if a user binds to AF_INET, but does not specify an IP address, the bind will occur for AF_INET6. This causes an attempt to bind to the same port using AF_INET6 to fail, and connection requests to AF_INET6 will match with the AF_INET listener. Align the behavior with sockets and restrict the bind to AF_INET only. If a user binds to AF_INET6, we bind the port to AF_INET6 and AF_INET depending on the value of bindv6only. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com> |
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