summaryrefslogtreecommitdiff
path: root/Documentation/networking/secid.rst
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-04-30 19:04:23 +0300
committerDavid S. Miller <davem@davemloft.net>2020-04-30 22:56:38 +0300
commitde1fd4a7b0f2351b775b673f092430dff64b221e (patch)
tree1493275ce3fa9bebef6bbd72d650fd7d3e99fa28 /Documentation/networking/secid.rst
parent671d114d8cde3ba4390714b850c86d8b39d31009 (diff)
downloadlinux-de1fd4a7b0f2351b775b673f092430dff64b221e.tar.xz
docs: networking: convert secid.txt to ReST
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>
Diffstat (limited to 'Documentation/networking/secid.rst')
-rw-r--r--Documentation/networking/secid.rst20
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/networking/secid.rst b/Documentation/networking/secid.rst
new file mode 100644
index 000000000000..b45141a98027
--- /dev/null
+++ b/Documentation/networking/secid.rst
@@ -0,0 +1,20 @@
+.. 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.