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be612f5e99
Pass a dscp_t variable to ip_route_input_rcu(), instead of a plain u8,
to prevent accidental setting of ECN bits in ->flowi4_tos.
Callers of ip_route_input_rcu() to consider are:
* ip_route_input_noref(), which already has a dscp_t variable to pass
as parameter. We just need to remove the inet_dscp_to_dsfield()
conversion.
* inet_rtm_getroute(), which receives a u8 from user space and needs
to convert it with inet_dsfield_to_dscp().
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/c4dbb5aa9cbc79c4fcb317abbffa7c7156bc56a7.1727807926.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>