meta: introduce meta broute support

Can be used in bridge prerouting hook to divert a packet
to the ip stack for routing.

This is a replacement for "ebtables -t broute" functionality.

Link: https://patchwork.ozlabs.org/project/netfilter-devel/patch/20230224095251.11249-1-sriram.yagnaraman@est.tech/
Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Florian Westphal <fw@strlen.de>

4 files changed, 23 insertions, 0 deletions

diff --git a/tests/py/bridge/meta.t b/tests/py/bridge/meta.t
index d77ebd89..171aa610 100644
--- a/tests/py/bridge/meta.t
+++ b/tests/py/bridge/meta.t
@@ -9,3 +9,5 @@ meta ibrpvid 100;ok
 
 meta protocol ip udp dport 67;ok
 meta protocol ip6 udp dport 67;ok
+
+meta broute set 1;fail
diff --git a/tests/py/bridge/redirect.t b/tests/py/bridge/redirect.t
new file mode 100644
index 00000000..5181e799
--- /dev/null
+++ b/tests/py/bridge/redirect.t
@@ -0,0 +1,5 @@
+:prerouting;type filter hook prerouting priority 0
+
+*bridge;test-bridge;prerouting
+
+meta broute set 1;ok
diff --git a/tests/py/bridge/redirect.t.json b/tests/py/bridge/redirect.t.json
new file mode 100644
index 00000000..7e32b329
--- /dev/null
+++ b/tests/py/bridge/redirect.t.json
@@ -0,0 +1,12 @@
+# meta broute set 1
+[
+    {
+        "mangle": {
+            "key": {
+                "meta": { "key": "broute" }
+            },
+            "value": 1
+        }
+    }
+]
+
diff --git a/tests/py/bridge/redirect.t.payload b/tests/py/bridge/redirect.t.payload
new file mode 100644
index 00000000..1fcfa5f1
--- /dev/null
+++ b/tests/py/bridge/redirect.t.payload
@@ -0,0 +1,4 @@
+# meta broute set 1
+bridge test-bridge prerouting
+  [ immediate reg 1 0x00000001 ]
+  [ meta set broute with reg 1 ]