Support matching and modifying IP TTL.

[openvswitch] / include / openflow / nicira-ext.h

diff --git a/include/openflow/nicira-ext.h b/include/openflow/nicira-ext.h
index b55ea9d0c73b6c446cea4d193a4c560e879b0777..06b9035ab6bb8f9820b83b8b695c2eb7f0aeebf6 100644 (file)
--- a/include/openflow/nicira-ext.h
+++ b/include/openflow/nicira-ext.h
@@ -1632,6 +1632,15 @@ OFP_ASSERT(sizeof(struct nx_action_output_reg) == 24);
  * Masking: Not maskable. */
 #define NXM_NX_IP_ECN      NXM_HEADER  (0x0001, 28, 1)
 
+/* The time-to-live/hop limit of the IP header.
+ *
+ * Prereqs: NXM_OF_ETH_TYPE must be either 0x0800 or 0x86dd.
+ *
+ * Format: 8-bit integer.
+ *
+ * Masking: Not maskable. */
+#define NXM_NX_IP_TTL      NXM_HEADER  (0x0001, 29, 1)
+
 /* ## --------------------- ## */
 /* ## Requests and replies. ## */
 /* ## --------------------- ## */