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/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 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 OPENVSWITCH_PACKETS_H
#define OPENVSWITCH_PACKETS_H 1
#include <sys/types.h>
#include <netinet/in.h>
#include "openvswitch/tun-metadata.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Tunnel information used in flow key and metadata. */
struct flow_tnl {
ovs_be32 ip_dst;
struct in6_addr ipv6_dst;
ovs_be32 ip_src;
struct in6_addr ipv6_src;
ovs_be64 tun_id;
uint16_t flags;
uint8_t ip_tos;
uint8_t ip_ttl;
ovs_be16 tp_src;
ovs_be16 tp_dst;
ovs_be16 gbp_id;
uint8_t gbp_flags;
uint8_t erspan_ver;
uint32_t erspan_idx;
uint8_t erspan_dir;
uint8_t erspan_hwid;
uint8_t gtpu_flags;
uint8_t gtpu_msgtype;
uint8_t pad1[4]; /* Pad to 64 bits. */
struct tun_metadata metadata;
};
/* Some flags are exposed through OpenFlow while others are used only
* internally. */
/* Public flags */
#define FLOW_TNL_F_OAM (1 << 0)
#define FLOW_TNL_PUB_F_MASK ((1 << 1) - 1)
/* Private flags */
#define FLOW_TNL_F_DONT_FRAGMENT (1 << 1)
#define FLOW_TNL_F_CSUM (1 << 2)
#define FLOW_TNL_F_KEY (1 << 3)
#define FLOW_TNL_F_MASK ((1 << 4) - 1)
/* Unfortunately, a "struct flow" sometimes has to handle OpenFlow port
* numbers and other times datapath (dpif) port numbers. This union allows
* access to both. */
union flow_in_port {
odp_port_t odp_port;
ofp_port_t ofp_port;
};
union flow_vlan_hdr {
ovs_be32 qtag;
struct {
ovs_be16 tpid; /* ETH_TYPE_VLAN_DOT1Q or ETH_TYPE_DOT1AD */
ovs_be16 tci;
};
};
struct ovs_key_nsh {
uint8_t flags;
uint8_t ttl;
uint8_t mdtype;
uint8_t np;
ovs_be32 path_hdr;
ovs_be32 context[4];
};
/* NSH flags */
#define FLOW_NSH_F_OAM (1 << 0)
#define FLOW_NSH_F_CTX (1 << 1)
#define FLOW_NSH_F_MASK ((1 << 2) - 1)
#ifdef __cplusplus
}
#endif
#endif /* packets.h */
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