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/*
* Copyright (c) 2017 Intel, 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 OPENVSWITCH_OFP_ED_PROPS_H
#define OPENVSWITCH_OFP_ED_PROPS_H 1
#include "openvswitch/ofp-errors.h"
#include "openvswitch/types.h"
#include "openvswitch/ofpbuf.h"
#ifdef __cplusplus
extern "C" {
#endif
enum ofp_ed_prop_class {
OFPPPC_BASIC = 0, /* ONF Basic class. */
OFPPPC_MPLS = 1, /* MPLS property class. */
OFPPPC_GRE = 2, /* GRE property class. */
OFPPPC_GTP = 3, /* GTP property class. */
OFPPPC_NSH = 4, /* NSH property class */
/* Experimenter property class.
*
* First 32 bits of property data
* is exp id after that is the experimenter property data.
*/
OFPPPC_EXPERIMENTER=0xffff
};
enum ofp_ed_nsh_prop_type {
OFPPPT_PROP_NSH_NONE = 0, /* unused */
OFPPPT_PROP_NSH_MDTYPE = 1, /* property MDTYPE in NSH */
OFPPPT_PROP_NSH_TLV = 2, /* property TLV in NSH */
};
/*
* External representation of encap/decap properties.
* These must be padded to a multiple of 8 bytes.
*/
struct ofp_ed_prop_header {
ovs_be16 prop_class;
uint8_t type;
uint8_t len;
};
struct ofp_ed_prop_nsh_md_type {
struct ofp_ed_prop_header header;
uint8_t md_type; /* NSH MD type .*/
uint8_t pad[3]; /* Padding to 8 bytes. */
};
struct ofp_ed_prop_nsh_tlv {
struct ofp_ed_prop_header header;
ovs_be16 tlv_class; /* Metadata class. */
uint8_t tlv_type; /* Metadata type including C bit. */
uint8_t tlv_len; /* Metadata value length (0-127). */
/* tlv_len octets of metadata value, padded to a multiple of 8 bytes. */
uint8_t data[0];
};
/*
* Internal representation of encap/decap properties
*/
struct ofpact_ed_prop {
uint16_t prop_class;
uint8_t type;
uint8_t len;
};
struct ofpact_ed_prop_nsh_md_type {
struct ofpact_ed_prop header;
uint8_t md_type; /* NSH MD type .*/
uint8_t pad[3]; /* Padding to 8 bytes. */
};
struct ofpact_ed_prop_nsh_tlv {
struct ofpact_ed_prop header;
ovs_be16 tlv_class; /* Metadata class. */
uint8_t tlv_type; /* Metadata type including C bit. */
uint8_t tlv_len; /* Metadata value length (0-127). */
/* tlv_len octets of metadata value, padded to a multiple of 8 bytes. */
uint8_t data[0];
};
enum ofperr decode_ed_prop(const struct ofp_ed_prop_header **ofp_prop,
struct ofpbuf *out, size_t *remaining);
enum ofperr encode_ed_prop(const struct ofpact_ed_prop **prop,
struct ofpbuf *out);
bool parse_ed_prop_class(const char *str, uint16_t *prop_class);
bool parse_ed_prop_type(uint16_t prop_class, const char *str, uint8_t *type);
char *parse_ed_prop_value(uint16_t prop_class, uint8_t prop_type,
const char *str, struct ofpbuf *out);
char *format_ed_prop_class(const struct ofpact_ed_prop *prop);
char *format_ed_prop_type(const struct ofpact_ed_prop *prop);
void format_ed_prop(struct ds *s, const struct ofpact_ed_prop *prop);
#ifdef __cplusplus
}
#endif
#endif /* ofp-ed-props.h */
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