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/*
* Copyright (c) 2021 Cisco and/or its affiliates.
* 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 __HICN_H__
#define __HICN_H__
#define ip_address_t hicn_ip_address_t
#define ip_address_cmp hicn_ip_address_cmp
#define ip_prefix_t hicn_ip_prefix_t
#define ip_prefix_cmp hicn_ip_prefix_cmp
#undef ip_prefix_len
#define ip_prefix_len hicn_ip_prefix_len
#include <hicn/hicn.h>
#undef ip_address_t
#undef ip_address_cmp
#undef ip_prefix_t
#undef ip_prefix_cmp
#undef ip_prefix_len
#define ip_prefix_len(_a) (_a)->len
#include "faces/face.h"
#include <netinet/in.h>
#include <vnet/ip/ip.h>
#include <vnet/tcp/tcp_packet.h>
#include <vnet/ip/ip6_packet.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/buffer.h>
/**
* @file
*/
/*
* Update CMakeLists.txt as we have to manually replace the type for
* vppapigen
*/
typedef u8 weight_t;
#define ISV6(isv6, dov6, dov4) isv6 ? dov6 : dov4
#define HICN_IS_NAMEHASH_CACHED(b) \
(((u64) (b->opaque2)[0] != 0) || ((u64) (b->opaque2)[1] != 0))
#ifndef VLIB_BUFFER_MIN_CHAIN_SEG_SIZE
#define VLIB_BUFFER_MIN_CHAIN_SEG_SIZE (128)
#endif
/* The following is stored in the opaque2 field in the vlib_buffer_t */
typedef struct
{
/**
* Hash of the name (8)
*/
u64 name_hash;
/**
* IDs to prefetch a PIT/CS entry (4+4+1+1)
*/
u32 node_id;
u32 bucket_id;
u8 hash_entry_id;
u8 hash_bucket_flags;
/**
* hICN buffer flags (1)
*/
u8 flags;
/**
* used for data path (1+1)
*/
u8 dpo_ctx_id;
u8 vft_id;
/**
* Ingress face (4)
*/
hicn_face_id_t face_id;
/**
* Cached packet info
*/
hicn_type_t type;
hicn_name_t name;
u16 port;
} hicn_buffer_t;
STATIC_ASSERT (sizeof (hicn_buffer_t) <=
STRUCT_SIZE_OF (vlib_buffer_t, opaque2),
"hICN buffer opaque2 meta-data too large for vlib_buffer");
always_inline hicn_buffer_t *
hicn_get_buffer (vlib_buffer_t *b0)
{
return (hicn_buffer_t *) &(b0->opaque2[0]);
}
always_inline u8
hicn_is_v6 (hicn_header_t *pkt_hdr)
{
return ((pkt_hdr->v4.ip.version_ihl >> 4) != 4);
}
always_inline void
hicn_buffer_get_name_and_namelen (vlib_buffer_t *b0, u8 **nameptr,
u16 *namelen)
{
*nameptr = (u8 *) (&hicn_get_buffer (b0)->name);
*namelen = ip_address_is_v4 (&hicn_get_buffer (b0)->name.prefix) ?
HICN_V4_NAME_LEN :
HICN_V6_NAME_LEN;
}
always_inline u8
hicn_buffer_is_v6 (vlib_buffer_t *b0)
{
return hicn_get_buffer (b0)->type.l1 == IPPROTO_IPV6;
}
always_inline void
hicn_buffer_set_flags (vlib_buffer_t *b, u8 flags)
{
hicn_buffer_t *hb = hicn_get_buffer (b);
hb->flags |= flags;
}
#endif /* __HICN_H__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables: eval: (c-set-style "gnu") End:
*/
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