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/*
* Copyright (c) 2021-2022 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__
#include <hicn/hicn.h>
#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
#define MAX_OUT_FACES 8
/* The following is stored in the opaque2 field in the vlib_buffer_t */
typedef struct
{
/**
* Cached packet info
*/
hicn_packet_buffer_t pkbuf;
/**
* IDs to prefetch a PIT/CS entry (4)
*/
u32 pcs_entry_id;
/**
* DPO/Stategy VFT ID. This is also the DPO type (4)
*/
dpo_type_t vft_id;
/**
* DPO context ID (4)
*/
u32 dpo_ctx_id;
/**
* Cached packet info
*/
u16 port;
u16 payload_type;
hicn_lifetime_t lifetime;
/**
* Ingress face (4)
*/
hicn_face_id_t face_id;
/**
* hICN buffer flags (1)
*/
u8 flags;
} hicn_buffer_t;
STATIC_ASSERT (offsetof (hicn_buffer_t, pcs_entry_id) == 24, "");
STATIC_ASSERT (offsetof (hicn_buffer_t, vft_id) == 28, "");
STATIC_ASSERT (offsetof (hicn_buffer_t, dpo_ctx_id) == 32, "");
STATIC_ASSERT (offsetof (hicn_buffer_t, port) == 36, "");
STATIC_ASSERT (offsetof (hicn_buffer_t, payload_type) == 38, "");
STATIC_ASSERT (offsetof (hicn_buffer_t, lifetime) == 40, "");
STATIC_ASSERT (offsetof (hicn_buffer_t, face_id) == 44, "");
STATIC_ASSERT (offsetof (hicn_buffer_t, flags) == 48, "");
// + name = 16+4 = 20
// opaque : u32[14] = 56
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]);
}
#if 0
always_inline u8
hicn_is_v6 (hicn_header_t *pkt_hdr)
{
return ((pkt_hdr->v4.ip.version_ihl >> 4) != 4);
}
always_inline hicn_name_t *
hicn_buffer_get_name (vlib_buffer_t *b)
{
return hicn_packet_get_name(&hicn_get_buffer (b)->pkbuf);
}
#endif
always_inline u8
hicn_buffer_is_v6 (vlib_buffer_t *b0)
{
hicn_packet_format_t format =
hicn_packet_get_format (&hicn_get_buffer (b0)->pkbuf);
return format.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;
}
always_inline hicn_lifetime_t
hicn_buffer_get_lifetime (vlib_buffer_t *b)
{
return hicn_get_buffer (b)->lifetime;
}
always_inline hicn_payload_type_t
hicn_buffer_get_payload_type (vlib_buffer_t *b)
{
return hicn_get_buffer (b)->payload_type;
}
#endif /* __HICN_H__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables: eval: (c-set-style "gnu") End:
*/
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