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/*
* builtin_proxy.h - skeleton vpp engine plug-in header file
*
* Copyright (c) 2017-2019 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 __included_proxy_h__
#define __included_proxy_h__
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vppinfra/hash.h>
#include <vppinfra/error.h>
#include <vnet/session/session.h>
#include <vnet/session/application_interface.h>
#define foreach_proxy_session_side_state \
_ (CREATED, "created") \
_ (CONNECTING, "connecting") \
_ (ESTABLISHED, "establiehed") \
_ (CLOSED, "closed")
typedef enum proxy_session_side_state_
{
#define _(sym, str) PROXY_SC_S_##sym,
foreach_proxy_session_side_state
#undef _
} proxy_session_side_state_t;
typedef struct proxy_session_side_
{
session_handle_t session_handle;
svm_fifo_t *rx_fifo;
svm_fifo_t *tx_fifo;
} proxy_session_side_t;
typedef struct proxy_session_side_ctx_
{
proxy_session_side_t pair;
proxy_session_side_state_t state;
u32 sc_index;
u32 ps_index;
u8 is_http;
} proxy_session_side_ctx_t;
typedef struct
{
proxy_session_side_t po; /**< passive open side */
proxy_session_side_t ao; /**< active open side */
volatile int active_open_establishing;
volatile int po_disconnected;
volatile int ao_disconnected;
u32 ps_index;
} proxy_session_t;
typedef struct proxy_worker_
{
proxy_session_side_ctx_t *ctx_pool;
clib_spinlock_t pending_connects_lock;
vnet_connect_args_t *pending_connects;
vnet_connect_args_t *burst_connects;
} proxy_worker_t;
typedef struct
{
proxy_worker_t *workers; /**< per-thread data */
proxy_session_t *sessions; /**< session pool, shared */
clib_spinlock_t sessions_lock; /**< lock for session pool */
u8 **rx_buf; /**< intermediate rx buffers */
u32 server_client_index; /**< server API client handle */
u32 server_app_index; /**< server app index */
u32 active_open_client_index; /**< active open API client handle */
u32 active_open_app_index; /**< active open index after attach */
u32 ckpair_index; /**< certkey pair index for tls */
/*
* Configuration params
*/
u32 fifo_size; /**< initial fifo size */
u32 max_fifo_size; /**< max fifo size */
u8 high_watermark; /**< high watermark (%) */
u8 low_watermark; /**< low watermark (%) */
u32 private_segment_count; /**< Number of private fifo segs */
u64 segment_size; /**< size of fifo segs */
u8 prealloc_fifos; /**< Request fifo preallocation */
u32 idle_timeout; /**< connect-proxy timeout for idle connections */
int rcv_buffer_size;
session_endpoint_cfg_t server_sep;
session_endpoint_cfg_t client_sep;
/*
* Flags
*/
u8 is_init;
} proxy_main_t;
extern proxy_main_t proxy_main;
static inline proxy_worker_t *
proxy_worker_get (u32 thread_index)
{
proxy_main_t *pm = &proxy_main;
return vec_elt_at_index (pm->workers, thread_index);
}
#endif /* __included_proxy_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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