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/*
// Copyright (c) 2010-2017 Intel Corporation
//
// 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 _BNG_PKTS_H_
#define _BNG_PKTS_H_
#include <rte_ether.h>
#include <rte_ip.h>
#include <rte_udp.h>
#include <rte_byteorder.h>
#include "gre.h"
#include "mpls.h"
#include "qinq.h"
#include "arp.h"
#include "hash_entry_types.h"
struct cpe_pkt {
#ifdef USE_QINQ
struct qinq_hdr qinq_hdr;
#else
struct ether_hdr ether_hdr;
#endif
struct ipv4_hdr ipv4_hdr;
struct udp_hdr udp_hdr;
} __attribute__((packed));
struct cpe_packet_arp {
struct qinq_hdr qinq_hdr;
struct my_arp_t arp;
} __attribute__((packed));
/* Struct used for setting all the values a packet
going to the core netwerk. Payload may follow
after the headers, but no need to touch that. */
struct core_net_pkt_m {
struct ether_hdr ether_hdr;
#ifdef MPLS_ROUTING
union {
struct mpls_hdr mpls;
uint32_t mpls_bytes;
};
#endif
struct ipv4_hdr tunnel_ip_hdr;
struct gre_hdr gre_hdr;
struct ipv4_hdr ip_hdr;
struct udp_hdr udp_hdr;
} __attribute__((packed));
struct core_net_pkt {
struct ether_hdr ether_hdr;
struct ipv4_hdr tunnel_ip_hdr;
struct gre_hdr gre_hdr;
struct ipv4_hdr ip_hdr;
struct udp_hdr udp_hdr;
} __attribute__((packed));
#define UPSTREAM_DELTA ((uint32_t)(sizeof(struct core_net_pkt) - sizeof(struct cpe_pkt)))
#define DOWNSTREAM_DELTA ((uint32_t)(sizeof(struct core_net_pkt_m) - sizeof(struct cpe_pkt)))
struct cpe_pkt_delta {
uint8_t encap[DOWNSTREAM_DELTA];
struct cpe_pkt pkt;
} __attribute__((packed));
static inline void extract_key_cpe(struct rte_mbuf *mbuf, uint64_t* key)
{
uint8_t* packet = rte_pktmbuf_mtod(mbuf, uint8_t*);
#ifdef USE_QINQ
*key = (*(uint64_t *)(packet + 12)) & 0xFF0FFFFFFF0FFFFF;
#else
*key = rte_bswap32(*(uint32_t *)(packet + 26)) & 0x00FFFFFF;
#endif
}
static inline void key_core(struct gre_hdr* gre, __attribute__((unused)) struct ipv4_hdr* ip, uint64_t* key)
{
struct cpe_key *cpe_key = (struct cpe_key*)key;
cpe_key->gre_id = rte_be_to_cpu_32(gre->gre_id) & 0xFFFFFFF;
#ifdef USE_QINQ
cpe_key->ip = ip->dst_addr;
#else
cpe_key->ip = 0;
#endif
}
static inline void extract_key_core(struct rte_mbuf *mbuf, uint64_t* key)
{
struct core_net_pkt *packet = rte_pktmbuf_mtod(mbuf, struct core_net_pkt *);
key_core(&packet->gre_hdr, &packet->ip_hdr, key);
}
static inline void extract_key_core_m(struct rte_mbuf *mbuf, uint64_t* key)
{
struct core_net_pkt_m *packet = rte_pktmbuf_mtod(mbuf, struct core_net_pkt_m *);
key_core(&packet->gre_hdr, &packet->ip_hdr, key);
}
#endif /* _BNG_PKTS_H_ */
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