Merge branch 'packet-fanout-unique-id'

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Mike Maloney says:

====================
packet: Add option to create new fanout group with unique id.

Fanout uses a per net global namespace. A process that intends to create a
new fanout group can accidentally join an existing group. It is
not possible to detect this.

Add a socket option to specify on the first call to
setsockopt(..., PACKET_FANOUT, ...) to ensure that a new group is created.
Also add tests.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2017-04-24 12:46:28 -04:00

parent 69226896ad 28be04f5c1

commit 6a32a44d1e

3 changed files with 128 additions and 10 deletions

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1

include/uapi/linux/if_packet.h

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44

net/packet/af_packet.c

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93

tools/testing/selftests/net/psock_fanout.c

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