l2tp: double-check l2specific_type provided by userspace

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Add sanity check on l2specific_type provided by userspace in
l2tp_nl_cmd_session_create() since just L2TP_L2SPECTYPE_DEFAULT and
L2TP_L2SPECTYPE_NONE are currently supported.
Moreover explicitly set l2specific_type to L2TP_L2SPECTYPE_DEFAULT
only if the userspace does not provide a value for it

Reviewed-by: Guillaume Nault <g.nault@alphalink.fr>
Tested-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Lorenzo Bianconi 2018-01-16 23:01:54 +01:00 • committed by David S. Miller

parent e0e8a14971

commit dfffc97d0e

1 changed files with 9 additions and 2 deletions

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net/l2tp/l2tp_netlink.c

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