Add support for exporting flow information in NetFlow v5 format.

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

diff --git a/include/openflow/nicira-ext.h b/include/openflow/nicira-ext.h
index da71be3..ece73c4 100644 (file)
--- a/include/openflow/nicira-ext.h
+++ b/include/openflow/nicira-ext.h
@@ -40,7 +40,14 @@ enum nicira_type {
 
     /* Remote command execution reply, sent when the command's execution
      * completes.  The reply body is struct nx_command_reply. */
-    NXT_COMMAND_REPLY
+    NXT_COMMAND_REPLY,
+
+    /* Configure whether Flow End messages should be sent. */
+    NXT_FLOW_END_CONFIG,
+
+    /* Sent by switch when a flow ends.  These messages are turned into
+     * ofp_flow_expired and NetFlow messages in user-space. */
+    NXT_FLOW_END
 };
 
 struct nicira_header {
@@ -138,4 +145,40 @@ struct nx_command_reply {
 };
 OFP_ASSERT(sizeof(struct nx_command_reply) == 20);
 
+enum nx_flow_end_reason {
+    NXFER_IDLE_TIMEOUT,         /* Flow idle time exceeded idle_timeout. */
+    NXFER_HARD_TIMEOUT,         /* Time exceeded hard_timeout. */
+    NXFER_DELETE,               /* Flow was removed by delete command. */
+    NXFER_EJECT                 /* Flow was ejected. */
+};
+
+struct nx_flow_end_config {
+    struct nicira_header header;
+    uint8_t enable;           /* Set to 1 to enable Flow End message
+                                 generation.  0 to disable.  */
+    uint8_t pad[3];
+};
+OFP_ASSERT(sizeof(struct nx_flow_end_config) == 20);
+
+struct nx_flow_end {
+    struct nicira_header header;
+    struct ofp_match match;   /* Description of fields. */
+
+    uint16_t priority;        /* Priority level of flow entry. */
+    uint8_t reason;           /* One of NXFER_*. */
+
+    uint8_t tcp_flags;        /* Union of seen TCP flags. */
+    uint8_t ip_tos;           /* IP TOS value. */
+
+    uint8_t pad[7];           /* Align to 64-bits. */
+
+    uint64_t init_time;       /* Time flow started in milliseconds. */
+    uint64_t used_time;       /* Time entry was last used in milliseconds. */
+    uint64_t end_time;        /* Time flow ended in milliseconds. */
+
+    uint64_t packet_count;    
+    uint64_t byte_count;
+};
+OFP_ASSERT(sizeof(struct nx_flow_end) == 104);
+
 #endif /* openflow/nicira-ext.h */