/*
 * Copyright (c) 2017 Intel 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.
 */

option version = "2.1.0";
import "vnet/interface_types.api";
import "vnet/ip/ip_types.api";

enum gtpu_forwarding_type
{
  GTPU_API_FORWARDING_NONE = 0,
  GTPU_API_FORWARDING_BAD_HEADER = 1,
  GTPU_API_FORWARDING_UNKNOWN_TEID = 2,
  GTPU_API_FORWARDING_UNKNOWN_TYPE = 4,
};

enum gtpu_decap_next_type
{
  GTPU_API_DECAP_NEXT_DROP = 0,
  GTPU_API_DECAP_NEXT_L2 = 1,
  GTPU_API_DECAP_NEXT_IP4 = 2,
  GTPU_API_DECAP_NEXT_IP6 = 3,
};

typedef sw_if_counters
{
  u64 packets_rx;
  u64 packets_tx;
  u64 bytes_rx;
  u64 bytes_tx;
};

/** \brief Create or delete a GTPU tunnel
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add address if non-zero, else delete
    @param src_address - GTPU tunnel's source address.
    @param dst_address - GTPU tunnel's destination address.
    @param mcast_sw_if_index - version, O-bit and C-bit (see nsh_packet.h)
    @param encap_vrf_id - fib identifier used for outgoing encapsulated packets
    @param decap_next_index - the index of the next node if success
    @param teid - Local (rx) Tunnel Endpoint Identifier
    @param tteid - Remote (tx) Tunnel Endpoint Identifier
*/
define gtpu_add_del_tunnel
{
  u32 client_index;
  u32 context;
  bool is_add;
  vl_api_address_t src_address;
  vl_api_address_t dst_address;
  vl_api_interface_index_t mcast_sw_if_index;
  u32 encap_vrf_id;
  u32 decap_next_index;
  u32 teid;
  u32 tteid;
  option vat_help = "src <ip-addr> {dst <ip-addr> | group <mcast-ip-addr> {<intfc> | mcast_sw_if_index <nn>}} teid <nn> [tteid <nn>] [encap-vrf-id <nn>] [decap-next <l2|nn>] [del]";
};

/** \brief reply for set or delete an GTPU tunnel
    @param context - sender context, to match reply w/ request
    @param retval - return code
    @param sw_if_index - software index of the interface
*/
define gtpu_add_del_tunnel_reply
{
  u32 context;
  i32 retval;
  vl_api_interface_index_t sw_if_index;
};

/** \brief Create or delete a GTPU tunnel
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add address if non-zero, else delete
    @param src_address - GTPU tunnel's source address.
    @param dst_address - GTPU tunnel's destination address.
    @param mcast_sw_if_index - version, O-bit and C-bit (see nsh_packet.h)
    @param encap_vrf_id - fib identifier used for outgoing encapsulated packets
    @param decap_next_index - the index of the next node if success
    @param teid - Local (rx) Tunnel Endpoint Identifier
    @param tteid - Remote (tx) Tunnel Endpoint Identifier
    @param pdu_extension - add PDU session container extension to each packet
    @param qfi - the QFI to set in the PDU session container, 6 bits only
*/
define gtpu_add_del_tunnel_v2
{
  u32 client_index;
  u32 context;
  bool is_add;
  vl_api_address_t src_address;
  vl_api_address_t dst_address;
  vl_api_interface_index_t mcast_sw_if_index;
  u32 encap_vrf_id;
  vl_api_gtpu_decap_next_type_t decap_next_index;
  u32 teid;
  u32 tteid;
  bool pdu_extension;
  u8 qfi;
  option vat_help = "src <ip-addr> {dst <ip-addr> | group <mcast-ip-addr> {<intfc> | mcast_sw_if_index <nn>}} teid <nn> [tteid <nn>] [encap-vrf-id <nn>] [decap-next <l2|nn>] [qfi <nn>] [del]";
  option in_progress;
};

/** \brief reply for set or delete an GTPU tunnel
    @param context - sender context, to match reply w/ request
    @param retval - return code
    @param sw_if_index - software index of the interface
    @param counters - Number of packets/bytes that is sent/received via this tunnel. Inaccurate (with in flight packets), sum for the entire set of per-thread counters. Zero for new tunnels.
*/
define gtpu_add_del_tunnel_v2_reply
{
  u32 context;
  i32 retval;
  vl_api_interface_index_t sw_if_index;
  vl_api_sw_if_counters_t counters;
  option in_progress;
};

/** \brief Update GTPU tunnel TX TEID
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param dst_address - GTPU tunnel's destination address.
    @param encap_vrf_id - fib identifier used for outgoing encapsulated packets
    @param teid - Local (rx) Tunnel Endpoint Identifier
    @param tteid - remote (tx) Tunnel Endpoint Identifier
*/
autoreply define gtpu_tunnel_update_tteid
{
  u32 client_index;
  u32 context;
  vl_api_address_t dst_address;
  u32 encap_vrf_id;
  u32 teid;
  u32 tteid;
  option vat_help = "dst <ip-addr> teid <nn> tteid <nn> [encap-vrf-id <nn>]";
};

/** \brief Dump GTPU tunnel
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - software index of the interface
*/
define gtpu_tunnel_dump
{
  u32 client_index;
  u32 context;
  vl_api_interface_index_t sw_if_index;
  option vat_help = "[<intfc> | sw_if_index <nn>]";
};

/** \brief dump details of an GTPU tunnel
    @param context - sender context, to match reply w/ request
    @param sw_if_index - software index of the interface
    @param src_address - GTPU tunnel's source address.
    @param dst_address - GTPU tunnel's destination address.
    @param mcast_sw_if_index - version, O-bit and C-bit (see nsh_packet.h)
    @param encap_vrf_id - fib identifier used for outgoing encapsulated packets
    @param decap_next_index - the index of the next node if success
    @param teid - Local (rx) Tunnel Endpoint Identifier
    @param tteid - Remote (tx) Tunnel Endpoint Identifier
*/
define gtpu_tunnel_details
{
  u32 context;
  vl_api_interface_index_t sw_if_index;
  vl_api_address_t src_address;
  vl_api_address_t dst_address;
  vl_api_interface_index_t mcast_sw_if_index;
  u32 encap_vrf_id;
  u32 decap_next_index;
  u32 teid;
  u32 tteid;
};


/** \brief Dump GTPU tunnel
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - software index of the interface
*/
define gtpu_tunnel_v2_dump
{
  u32 client_index;
  u32 context;
  vl_api_interface_index_t sw_if_index;
  option vat_help = "[<intfc> | sw_if_index <nn>]";
  option in_progress;
};

/** \brief dump details of an GTPU tunnel
    @param context - sender context, to match reply w/ request
    @param sw_if_index - software index of the interface
    @param src_address - GTPU tunnel's source address.
    @param dst_address - GTPU tunnel's destination address.
    @param mcast_sw_if_index - version, O-bit and C-bit (see nsh_packet.h)
    @param encap_vrf_id - fib identifier used for outgoing encapsulated packets
    @param decap_next_index - the index of the next node if success
    @param teid - Local (rx) Tunnel Endpoint Identifier
    @param tteid - Remote (tx) Tunnel Endpoint Identifier
    @param pdu_extension - add PDU session container extension to each packet
    @param qfi - the QFI to set in the PDU session container, 6 bits only
    @param is_forwarding - tunnel used for forwarding packets
    @param forwarding_type - the type of packets forwarded
    @param counters - Number of packets/bytes that is sent/received via this tunnel. Inaccurate (with in flight packets), sum for the entire set of per-thread counters.
*/
define gtpu_tunnel_v2_details
{
  u32 context;
  vl_api_interface_index_t sw_if_index;
  vl_api_address_t src_address;
  vl_api_address_t dst_address;
  vl_api_interface_index_t mcast_sw_if_index;
  u32 encap_vrf_id;
  vl_api_gtpu_decap_next_type_t decap_next_index;
  u32 teid;
  u32 tteid;
  bool pdu_extension;
  u8 qfi;
  bool is_forwarding;
  vl_api_gtpu_forwarding_type_t forwarding_type;
  vl_api_sw_if_counters_t counters;
  option in_progress;
};

/** \brief Interface set gtpu-bypass request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface used to reach neighbor
    @param is_ipv6 - if non-zero, enable ipv6-gtpu-bypass, else ipv4-gtpu-bypass
    @param enable - if non-zero enable, else disable
*/
autoreply define sw_interface_set_gtpu_bypass
{
  u32 client_index;
  u32 context;
  vl_api_interface_index_t sw_if_index;
  bool is_ipv6;
  bool enable;
  option vat_help = "<intfc> | sw_if_index <id> [ip4 | ip6] [enable | disable]";
};

/** \brief Offload gtpu rx request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param hw_if_index - rx hw interface
    @param sw_if_index - gtpu interface to offload
    @param enable - if non-zero enable, else disable
*/
autoreply define gtpu_offload_rx
{
  u32 client_index;
  u32 context;
  u32 hw_if_index;
  u32 sw_if_index;
  u8 enable;
  option vat_help = "hw <intfc> rx <tunnel-name> [del]";
};

/** \brief Set gtpu-forward request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add address if non-zero, else delete
    @param forwarding_type - forward filter (unknown teid, unknown message type or unknown header)
    @param dst_address - forward destination address.
    @param encap_vrf_id - fib identifier used for outgoing packets
    @param decap_next_index - the index of the next node if success
*/
define gtpu_add_del_forward
{
  u32 client_index;
  u32 context;
  bool is_add;
  vl_api_address_t dst_address;
  vl_api_gtpu_forwarding_type_t forwarding_type;
  u32 encap_vrf_id;
  vl_api_gtpu_decap_next_type_t decap_next_index;
  option vat_help = "dst <ip-addr> {bad-header|unknown-teid|unknown-type} [decap-next <l2|nn>] [del]";
  option in_progress;
};

/** \brief reply for set or delete GTPU forwarding
    @param context - sender context, to match reply w/ request
    @param retval - return code
    @param sw_if_index - software index of the interface
*/
define gtpu_add_del_forward_reply
{
  u32 context;
  i32 retval;
  vl_api_interface_index_t sw_if_index;
  option in_progress;
};

/** \brief Get list of metrics, use for bulk transfer.
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index_start - software index of the first interface to return data on.
    @param capacity - max number of interfaces returned.
*/
define gtpu_get_transfer_counts
{
  u32 client_index;
  u32 context;
  vl_api_interface_index_t sw_if_index_start;
  u32 capacity;
  //option vat_help = "start_index <sw_if_index> count <nn>";
  option in_progress;
};

/** \brief reply for set or delete GTPU forwarding
    @param context - sender context, to match reply w/ request
    @param retval - return code
    @param count - number of tunnel counters returned, sequential starting at sw_if_index_start.
    @param tunnels - Number of packets/bytes that is sent/received via this tunnel. Inaccurate (with in flight packets), sum for the entire set of per-thread counters.
*/
typedef tunnel_metrics
{
   vl_api_interface_index_t sw_if_index;
   u32 reserved;
   vl_api_sw_if_counters_t counters;
};

define gtpu_get_transfer_counts_reply
{
  u32 context;
  i32 retval;
  u32 count;
  vl_api_tunnel_metrics_t tunnels[count];
  option in_progress;
};

/*
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */