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Diffstat (limited to 'kernel/Documentation/networking/secid.txt')
| -rw-r--r-- | kernel/Documentation/networking/secid.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/Documentation/networking/secid.txt b/kernel/Documentation/networking/secid.txt new file mode 100644 index 000000000..95ea06784 --- /dev/null +++ b/kernel/Documentation/networking/secid.txt @@ -0,0 +1,14 @@ +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. |