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- .. SPDX-License-Identifier: GPL-2.0
- =================
- LSM/SeLinux secid
- =================
- 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.
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