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-rw-r--r--doc/libnftables-json.adoc14
1 files changed, 13 insertions, 1 deletions
diff --git a/doc/libnftables-json.adoc b/doc/libnftables-json.adoc
index e51e9d40..058573df 100644
--- a/doc/libnftables-json.adoc
+++ b/doc/libnftables-json.adoc
@@ -1060,7 +1060,19 @@ existence check in a *match* statement with boolean on right hand side.
=== META
[verse]
-*{ "meta":* 'STRING' *}*
+____
+*{ "meta": {
+ "key":* 'META_KEY'
+*}}*
+
+'META_KEY' := *"length"* | *"protocol"* | *"priority"* | *"random"* | *"mark"* |
+ *"iif"* | *"iifname"* | *"iiftype"* | *"oif"* | *"oifname"* |
+ *"oiftype"* | *"skuid"* | *"skgid"* | *"nftrace"* |
+ *"rtclassid"* | *"ibriport"* | *"obriport"* | *"ibridgename"* |
+ *"obridgename"* | *"pkttype"* | *"cpu"* | *"iifgroup"* |
+ *"oifgroup"* | *"cgroup"* | *"nfproto"* | *"l4proto"* |
+ *"secpath"*
+____
Create a reference to packet meta data.