/*
 * Copyright (c) 2016 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_uri_h__
#define __included_uri_h__

#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <svm/svm_fifo_segment.h>
#include <vnet/session/session.h>
#include <vnet/session/application.h>
#include <vnet/session/transport.h>

typedef enum _session_api_proto
{
  SESSION_PROTO_TCP,
  SESSION_PROTO_UDP
} session_api_proto_t;

typedef struct _vnet_bind_args_t
{
  union
  {
    char *uri;
    struct
    {
      transport_endpoint_t tep;
      session_api_proto_t proto;
    };
  };

  u32 api_client_index;
  u64 *options;
  session_cb_vft_t *session_cb_vft;

  /*
   * Results
   */
  char *segment_name;
  u32 segment_name_length;
  u64 server_event_queue_address;
  u64 handle;
} vnet_bind_args_t;

typedef struct _vnet_unbind_args_t
{
  union
  {
    char *uri;
    u64 handle;
  };
  u32 api_client_index;
} vnet_unbind_args_t;

typedef struct _vnet_connect_args
{
  union
  {
    char *uri;
    struct
    {
      transport_endpoint_t tep;
      session_api_proto_t proto;
    };
  };
  u32 api_client_index;
  u32 api_context;
  u64 *options;
  session_cb_vft_t *session_cb_vft;

  /* Used for redirects */
  void *mp;
} vnet_connect_args_t;

typedef struct _vnet_disconnect_args_t
{
  u64 handle;
  u32 api_client_index;
} vnet_disconnect_args_t;

/* Bind / connect options */
typedef enum
{
  SESSION_OPTIONS_FLAGS,
  SESSION_OPTIONS_SEGMENT_SIZE,
  SESSION_OPTIONS_ADD_SEGMENT_SIZE,
  SESSION_OPTIONS_RX_FIFO_SIZE,
  SESSION_OPTIONS_TX_FIFO_SIZE,
  SESSION_OPTIONS_ACCEPT_COOKIE,
  SESSION_OPTIONS_N_OPTIONS
} session_options_index_t;

/** Server can handle delegated connect requests from local clients */
#define SESSION_OPTIONS_FLAGS_USE_FIFO	(1<<0)

/** Server wants vpp to add segments when out of memory for fifos */
#define SESSION_OPTIONS_FLAGS_ADD_SEGMENT   (1<<1)

#define VNET_CONNECT_REDIRECTED	123

int vnet_bind_uri (vnet_bind_args_t *);
int vnet_unbind_uri (char *uri, u32 api_client_index);
int vnet_connect_uri (vnet_connect_args_t * a);
int
vnet_disconnect_session (u32 client_index, u32 session_index,
			 u32 thread_index);

int vnet_bind (vnet_bind_args_t * a);
int vnet_connect (vnet_connect_args_t * a);
int vnet_unbind (vnet_unbind_args_t * a);
int vnet_disconnect (vnet_disconnect_args_t * a);

int
api_parse_session_handle (u64 handle, u32 * session_index,
			  u32 * thread_index);

#endif /* __included_uri_h__ */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */