/*
- * Copyright (c) 2008, 2009 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* limitations under the License.
*/
-#ifndef NETFLOW_H
-#define NETFLOW_H 1
+#ifndef OFPROTO_NETFLOW_H
+#define OFPROTO_NETFLOW_H 1
+#include <stdint.h>
#include "flow.h"
+#include "sset.h"
+
+/* Default active timeout interval, in seconds.
+ *
+ * (The active timeout interval is the interval at which NetFlow records are
+ * sent for flows that do not expire, so that such flows are still
+ * accounted.) */
+#define NF_ACTIVE_TIMEOUT_DEFAULT 600
struct ofexpired;
-struct svec;
+
+struct netflow_options {
+ struct sset collectors;
+ uint8_t engine_type;
+ uint8_t engine_id;
+ int active_timeout;
+ bool add_id_to_iface;
+};
+
+#define NF_OUT_FLOOD OFP_PORT_C(UINT16_MAX)
+#define NF_OUT_MULTI OFP_PORT_C(UINT16_MAX - 1)
+#define NF_OUT_DROP OFP_PORT_C(UINT16_MAX - 2)
+
+struct netflow_flow {
+ long long int last_expired; /* Time this flow last timed out. */
+ long long int created; /* Time flow was created since time out. */
+
+ uint64_t packet_count_off; /* Packet count at last time out. */
+ uint64_t byte_count_off; /* Byte count at last time out. */
+
+ ofp_port_t output_iface; /* Output interface index. */
+ uint8_t tcp_flags; /* Bitwise-OR of all TCP flags seen. */
+};
struct netflow *netflow_create(void);
void netflow_destroy(struct netflow *);
-int netflow_set_collectors(struct netflow *, const struct svec *collectors);
-void netflow_set_engine(struct netflow *nf, uint8_t engine_type,
- uint8_t engine_id, bool add_id_to_iface);
-void netflow_expire(struct netflow *, const struct ofexpired *);
-void netflow_run(struct netflow *);
+int netflow_set_options(struct netflow *, const struct netflow_options *);
+void netflow_expire(struct netflow *, struct netflow_flow *,
+ struct ofexpired *);
+
+bool netflow_run(struct netflow *);
+void netflow_wait(struct netflow *);
+
+void netflow_mask_wc(struct flow *, struct flow_wildcards *);
+
+void netflow_flow_init(struct netflow_flow *);
+void netflow_flow_clear(struct netflow_flow *);
+void netflow_flow_update_time(struct netflow *, struct netflow_flow *,
+ long long int used);
+void netflow_flow_update_flags(struct netflow_flow *, uint8_t tcp_flags);
+bool netflow_active_timeout_expired(struct netflow *, struct netflow_flow *);
#endif /* netflow.h */