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Not much to be done here: - add SPDX header; - add a document title; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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21 lines
749 B
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.. SPDX-License-Identifier: GPL-2.0
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=================
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LSM/SeLinux secid
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=================
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flowi structure:
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The secid member in the flow structure is used in LSMs (e.g. SELinux) to indicate
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the label of the flow. This label of the flow is currently used in selecting
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matching labeled xfrm(s).
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If this is an outbound flow, the label is derived from the socket, if any, or
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the incoming packet this flow is being generated as a response to (e.g. tcp
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resets, timewait ack, etc.). It is also conceivable that the label could be
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derived from other sources such as process context, device, etc., in special
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cases, as may be appropriate.
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If this is an inbound flow, the label is derived from the IPSec security
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associations, if any, used by the packet.
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