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/*
* Copyright (c) 2009, 2010 InMon Corp.
* Copyright (c) 2009, 2012 Nicira, Inc.
*
* 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:
*
* 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 OFPROTO_DPIF_SFLOW_H
#define OFPROTO_DPIF_SFLOW_H 1
#include <stdint.h>
#include "svec.h"
#include "lib/odp-util.h"
struct dpif;
struct dpif_upcall;
struct flow;
struct ofproto_sflow_options;
struct ofport;
/* When we have the actions for a sampled packet that
* will go to just one output, then this structure is
* populated by parsing them. Only fields relevant to
* the sFlow export are extracted.
*/
struct dpif_sflow_actions {
odp_port_t out_port; /* ODP output port. */
uint32_t encap_depth; /* Count layers of tunnel-encap. */
struct flow_tnl tunnel; /* Egress tunnel push/set. */
uint8_t tunnel_ipproto; /* Tunnel push action can set ipproto. */
bool tunnel_err; /* Tunnel actions parse failure. */
/* Using host-byte order for the mpls stack here
to match the expectations of the sFlow library. Also
the ordering is reversed, so that the entry at offset 0
is the bottom of the stack.
*/
uint32_t mpls_lse[FLOW_MAX_MPLS_LABELS]; /* Out stack in host byte order. */
uint32_t mpls_stack_depth; /* Out stack depth. */
bool mpls_err; /* MPLS actions parse failure. */
};
struct dpif_sflow *dpif_sflow_create(void);
struct dpif_sflow *dpif_sflow_ref(const struct dpif_sflow *);
void dpif_sflow_unref(struct dpif_sflow *);
uint32_t dpif_sflow_get_probability(const struct dpif_sflow *);
void dpif_sflow_set_options(struct dpif_sflow *,
const struct ofproto_sflow_options *);
void dpif_sflow_clear(struct dpif_sflow *);
bool dpif_sflow_is_enabled(const struct dpif_sflow *);
void dpif_sflow_add_port(struct dpif_sflow *ds, struct ofport *ofport,
odp_port_t odp_port);
void dpif_sflow_del_port(struct dpif_sflow *, odp_port_t odp_port);
void dpif_sflow_run(struct dpif_sflow *);
void dpif_sflow_wait(struct dpif_sflow *);
void dpif_sflow_read_actions(const struct flow *,
const struct nlattr *actions, size_t actions_len,
struct dpif_sflow_actions *, bool capture_mpls);
void dpif_sflow_received(struct dpif_sflow *, const struct dp_packet *,
const struct flow *, odp_port_t odp_port,
const struct user_action_cookie *,
const struct dpif_sflow_actions *);
int dpif_sflow_odp_port_to_ifindex(const struct dpif_sflow *,
odp_port_t odp_port);
#endif /* ofproto/ofproto-dpif-sflow.h */
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