RDMA/cma: Bind to a specific address family

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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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Sean Hefty 2012-06-14 20:31:39 +00:00 • committed by Roland Dreier

parent 6887a4131d

commit 5b0ec991c0

1 changed files with 21 additions and 11 deletions

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32

drivers/infiniband/core/cma.c

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