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| flowi structure:
|
| The secid member in the flow structure is used in LSMs (e.g. SELinux) to indicate
| the label of the flow. This label of the flow is currently used in selecting
| matching labeled xfrm(s).
|
| If this is an outbound flow, the label is derived from the socket, if any, or
| the incoming packet this flow is being generated as a response to (e.g. tcp
| resets, timewait ack, etc.). It is also conceivable that the label could be
| derived from other sources such as process context, device, etc., in special
| cases, as may be appropriate.
|
| If this is an inbound flow, the label is derived from the IPSec security
| associations, if any, used by the packet.
|
|
