/*
* Copyright (c) 2008, 2009 Nicira Networks.
*
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*/
#ifndef NETFLOW_H
#define NETFLOW_H 1
#include "flow.h"
+#include "svec.h"
struct ofexpired;
-struct svec;
+
+struct netflow_options {
+ struct svec collectors;
+ uint8_t engine_type;
+ uint8_t engine_id;
+ int active_timeout;
+ bool add_id_to_iface;
+};
+
+enum netflow_output_ports {
+ NF_OUT_FLOOD = UINT16_MAX,
+ NF_OUT_MULTI = UINT16_MAX - 1,
+ NF_OUT_DROP = 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. */
+
+ uint16_t output_iface; /* Output interface index. */
+ uint8_t ip_tos; /* Last-seen IP type-of-service. */
+ 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 *);
+int netflow_set_options(struct netflow *, const struct netflow_options *);
+void netflow_expire(struct netflow *, struct netflow_flow *,
+ struct ofexpired *);
void netflow_run(struct netflow *);
+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 ip_tos,
+ uint8_t tcp_flags);
+bool netflow_active_timeout_expired(struct netflow *, struct netflow_flow *);
+
#endif /* netflow.h */