[vpp.git] / vpp / vpp-api / vpe.api

/* Hey Emacs use -*- mode: C -*- */
/*
 * Copyright (c) 2015 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.
 */

/** \file

    This file defines vpe control-plane API messages which are generally
    called through a shared memory interface. 
*/


/** \brief Register for interface events
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param enable_disable - 1 => register for events, 0 => cancel registration
    @param pid - sender's pid
*/
define want_interface_events
{
  u32 client_index;
  u32 context;
  u32 enable_disable;
  u32 pid;
};

/** \brief Reply for interface events registration
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define want_interface_events_reply
{
  u32 context;
  i32 retval;
};

/** \brief Interface details structure (fix this) 
    @param sw_if_index - index of the interface
    @param sup_sw_if_index - index of parent interface if any, else same as sw_if_index  
    @param l2_address_length - length of the interface's l2 address
    @param pid - the interface's l2 address
    @param interface_name - name of the interface
    @param link_duplex - 1 if half duplex, 2 if full duplex
    @param link_speed - 1 = 10M, 2 = 100M, 4 = 1G, 8 = 10G, 16 = 40G, 32 = 100G
    @param link_MTU - max. transmittion unit 
    @param sub_if_id - A number 0-N to uniquely identify this subif on super if
    @param sub_dot1ad -  0 = dot1q, 1=dot1ad
    @param sub_number_of_tags - Number of tags (0 - 2)
    @param sub_outer_vlan_id
    @param sub_inner_vlan_id
    @param sub_exact_match
    @param sub_default
    @param sub_outer_vlan_id_any
    @param sub_inner_vlan_id_any
    @param vtr_op - vlan tag rewrite operation
    @param vtr_push_dot1q
    @param vtr_tag1
    @param vtr_tag2
*/
define sw_interface_details
{
  u32 context;
  u32 sw_if_index;

  /* index of sup interface (e.g. hw interface).
     equal to sw_if_index for super hw interface. */
  u32 sup_sw_if_index;

  /* Layer 2 address, if applicable */
  u32 l2_address_length;
  u8 l2_address[8];

  /* Interface name */
  u8 interface_name[64];

  /* 1 = up, 0 = down */
  u8 admin_up_down;
  u8 link_up_down;

  /* 1 = half duplex, 2 = full duplex */
  u8 link_duplex;

  /* 1 = 10M, 2 = 100M, 4 = 1G, 8 = 10G, 16 = 40G, 32 = 100G */
  u8 link_speed;

  /* MTU */
  u16 link_mtu;

  /* Subinterface ID. A number 0-N to uniquely identify this subinterface under the super interface */
  u32 sub_id;

  /* 0 = dot1q, 1=dot1ad */
  u8 sub_dot1ad;

  /* Number of tags 0-2 */
  u8 sub_number_of_tags;
  u16 sub_outer_vlan_id;
  u16 sub_inner_vlan_id;
  u8 sub_exact_match;
  u8 sub_default;
  u8 sub_outer_vlan_id_any;
  u8 sub_inner_vlan_id_any;

  /* vlan tag rewrite state */
  u32 vtr_op;
  u32 vtr_push_dot1q;           // ethertype of first pushed tag is dot1q/dot1ad
  u32 vtr_tag1;                 // first pushed tag
  u32 vtr_tag2;                 // second pushed tag
};

/** \brief Set flags on the interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - index of the interface to set flags on
    @param admin_up_down - set the admin state, 1 = up, 0 = down
    @param link_up_down - Oper state sent on change event, not used in config.
    @param deleted - interface was deleted
*/
define sw_interface_set_flags
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  /* 1 = up, 0 = down */
  u8 admin_up_down;
  u8 link_up_down;
  u8 deleted;
};

/** \brief Reply to sw_interface_set_flags 
    @param context - sender context which was passed in the request
    @param retval - return code of the set flags request
*/
define sw_interface_set_flags_reply
{
  u32 context;
  i32 retval;
};

/* works */
define sw_interface_dump
{
  u32 client_index;
  u32 context;
  u8 name_filter_valid;
  u8 name_filter[49];
};

/** \brief Set or delete one or all ip addresses on a specified interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - index of the interface to add/del addresses 
    @param is_add - add address if non-zero, else delete
    @param is_ipv6 - if non-zero the address is ipv6, else ipv4
    @param del_all - if non-zero delete all addresses on the interface
    @param address_length - address length in bytes, 4 for ip4, 16 for ip6
    @param address - array of address bytes
*/
define sw_interface_add_del_address
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 is_add;
  u8 is_ipv6;
  u8 del_all;
  u8 address_length;
  u8 address[16];
};

/** \brief Reply for interface events registration
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define sw_interface_add_del_address_reply
{
  u32 context;
  i32 retval;
};

/** \brief Associate the specified interface with a fib table
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - index of the interface
    @param is_ipv6 - if non-zero ipv6, else ipv4
    @param vrf_id - fib table/vrd id to associate the interface with
*/
define sw_interface_set_table
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 is_ipv6;
  u32 vrf_id;
};

/** \brief Reply for interface events registration
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define sw_interface_set_table_reply
{
  u32 context;
  i32 retval;
};

/** \brief Initialize a new tap interface with the given paramters 
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param use_random_mac - let the system generate a unique mac address
    @param tap_name - name to associate with the new interface
    @param mac_address - mac addr to assign to the interface if use_radom not set
*/
define tap_connect
{
  u32 client_index;
  u32 context;
  u8 use_random_mac;
  u8 tap_name[64];
  u8 mac_address[6];
  u8 renumber;
  u32 custom_dev_instance;
};

/** \brief Reply for tap connect request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param sw_if_index - software index allocated for the new tap interface
*/
define tap_connect_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief Modify a tap interface with the given paramters 
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface index of existing tap interface
    @param use_random_mac - let the system generate a unique mac address
    @param tap_name - name to associate with the new interface
    @param mac_address - mac addr to assign to the interface if use_radom not set
*/
define tap_modify
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 use_random_mac;
  u8 tap_name[64];
  u8 mac_address[6];
  u8 renumber;
  u32 custom_dev_instance;
};

/** \brief Reply for tap modify request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param sw_if_index - software index if the modified tap interface
*/
define tap_modify_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief Delete tap interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface index of existing tap interface
*/
define tap_delete
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
};

/** \brief Reply for tap delete request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define tap_delete_reply
{
  u32 context;
  i32 retval;
};

/** \brief Dump tap interfaces request */
define sw_interface_tap_dump
{
  u32 client_index;
  u32 context;
};

/** \brief Reply for tap dump request
    @param sw_if_index - software index of tap interface
    @param dev_name - Linux tap device name
*/
define sw_interface_tap_details
{
  u32 context;
  u32 sw_if_index;
  u8 dev_name[64];
};

/** \brief Create a new subinterface with the given vlan id
    @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 new vlan's parent interface
    @param vlan_id - vlan tag of the new interface
*/
define create_vlan_subif
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u32 vlan_id;
};

/** \brief Reply for the vlan subinterface create request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param sw_if_index - software index allocated for the new subinterface
*/
define create_vlan_subif_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief Add / del route request
    @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 new vlan's parent interface
    @param vrf_id - fib table /vrf associated with the route
    @param lookup_in_vrf - 
    @param resolve_attempts - 
    @param classify_table_index - 
    @param create_vrf_if_needed - 
    @param resolve_if_needed - 
    @param is_add - 1 if adding the route, 0 if deleting
    @param is_drop - 
    @param is_ipv6 - 0 if an ip4 route, else ip6
    @param is_local - 
    @param is_classify - 
    @param is_multipath - Set to 1 if this is a multipath route, else 0
    @param not_last - Is last or not last msg in group of multiple add/del msgs
    @param next_hop_weight - 
    @param dst_address_length - 
    @param dst_address[16] - 
    @param next_hop_address[16] - 
*/
define ip_add_del_route
{
  u32 client_index;
  u32 context;
  u32 next_hop_sw_if_index;
  u32 vrf_id;
  u32 lookup_in_vrf;
  u32 resolve_attempts;
  u32 classify_table_index;
  u8 create_vrf_if_needed;
  u8 resolve_if_needed;
  u8 is_add;
  u8 is_drop;
  u8 is_ipv6;
  u8 is_local;
  u8 is_classify;
  /* Is last/not-last message in group of multiple add/del messages. */
  u8 is_multipath;
  u8 not_last;
  u8 next_hop_weight;
  u8 dst_address_length;
  u8 dst_address[16];
  u8 next_hop_address[16];
};

/** \brief Reply for add / del route request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define ip_add_del_route_reply
{
  u32 context;
  i32 retval;
};

/* works */
/** \brief Add / del gre tunnel request
    @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 new vlan's parent interface
    @param inner_vrf_id -
    @param outer_vrf_id - 
    @param is_add - 1 if adding the tunnel, 0 if deleting
    @param src_address[4] - tunnel source address
    @param dst_address[4] - tunnel destination address
    @param intf_address - 
    @param intf_address_length - 
*/
define mpls_gre_add_del_tunnel
{
  u32 client_index;
  u32 context;
  u32 inner_vrf_id;
  u32 outer_vrf_id;
  u8 is_add;
  u8 l2_only;
  u8 src_address[4];
  u8 dst_address[4];
  u8 intfc_address[4];
  u8 intfc_address_length;
};

/** \brief Reply for add / del tunnel request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define mpls_gre_add_del_tunnel_reply
{
  u32 context;
  i32 retval;
  u32 tunnel_sw_if_index;
};

/** \brief Add / del MPLS encapsulation request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param vrf_id - vrf id
    @param dst_address[4] - 
    @param is_add - 1 if adding the encap, 0 if deleting
    @param nlabels - number of labels 
    @param labels - array of labels
*/
define mpls_add_del_encap
{
  u32 client_index;
  u32 context;
  u32 vrf_id;
  u8 dst_address[4];
  /* 1 = add, 0 = delete */
  u8 is_add;
  u8 nlabels;
  u32 labels[0];
};

/** \brief Reply for add / del encapsulation request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define mpls_add_del_encap_reply
{
  u32 context;
  i32 retval;
};

/** \brief Add / del MPLS decapsulation request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param rx_vrf_id - receive vrf
    @param tx_vrf_id - transmit vrf
    @param label - 
    @param next_index - 
    @param s_bit - 
    @param is_add - 1 if adding the encap, 0 if deleting
*/
define mpls_add_del_decap
{
  u32 client_index;
  u32 context;
  u32 rx_vrf_id;
  u32 tx_vrf_id;
  u32 label;
  u32 next_index;
  u8 s_bit;
  u8 is_add;
};

/** \brief Reply for MPLS decap add / del request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define mpls_add_del_decap_reply
{
  u32 context;
  i32 retval;
};

/** \brief Proxy ARP add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param vrf_id - VRF / Fib table ID
    @param is_add - 1 if adding the Proxy ARP range, 0 if deleting
    @param low_address[4] - Low address of the Proxy ARP range
    @param hi_address[4] - High address of the Proxy ARP range
*/
define proxy_arp_add_del
{
  u32 client_index;
  u32 context;
  u32 vrf_id;
  u8 is_add;
  u8 low_address[4];
  u8 hi_address[4];
};

/** \brief Reply for proxy arp add / del request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define proxy_arp_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Proxy ARP add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - Which interface to enable / disable Proxy Arp on
    @param enable_disable - 1 to enable Proxy ARP on interface, 0 to disable
*/
define proxy_arp_intfc_enable_disable
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  /* 1 = on, 0 = off */
  u8 enable_disable;
};

/** \brief Reply for Proxy ARP interface enable / disable request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define proxy_arp_intfc_enable_disable_reply
{
  u32 context;
  i32 retval;
};

/** \brief IP neighbor add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param vrf_id - vrf_id, only for IP4
    @param sw_if_index - interface used to reach neighbor
    @param is_add - 1 to add neighbor, 0 to delete
    @param is_ipv6 - 1 for IPv6 neighbor, 0 for IPv4
    @param is_static - 
    @param mac_address - l2 address of the neighbor
    @param dst_address - ip4 or ip6 address of the neighbor
*/
define ip_neighbor_add_del
{
  u32 client_index;
  u32 context;
  u32 vrf_id;                   /* only makes sense for ip4 */
  u32 sw_if_index;
  /* 1 = add, 0 = delete */
  u8 is_add;
  u8 is_ipv6;
  u8 is_static;
  u8 mac_address[6];
  u8 dst_address[16];
};

/** \brief Reply for IP Neighbor add / delete request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define ip_neighbor_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Reset VRF (remove all routes etc) request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_ipv6 - 1 for IPv6 neighbor, 0 for IPv4
    @param vrf_id - ID of th FIB table / VRF to reset
*/
define reset_vrf
{
  u32 client_index;
  u32 context;
  u8 is_ipv6;
  u32 vrf_id;
};

/** \brief Reply for Reset VRF request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define reset_vrf_reply
{
  u32 context;
  i32 retval;
};

/** \brief Is Address Reachable request - DISABLED
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param next_hop_sw_if_index - index of interface used to get to next hop
    @param is_ipv6 - 1 for IPv6, 0 for IPv4
    @param is_error - address not found or does not match intf
    @param address[] - Address in question 
*/
define is_address_reachable
{
  u32 client_index;             /* (api_main_t *) am->my_client_index */
  u32 context;
  u32 next_hop_sw_if_index;
  u8 is_known;                  /* on reply, this is the answer */
  u8 is_ipv6;
  u8 is_error;                  /* address not found or does not match intf */
  u8 address[16];
};

/** \brief Want Stats, register for stats updates
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param enable_disable - 1 = enable stats, 0 = disable
    @param pid - pid of process requesting stats updates
*/
define want_stats
{
  u32 client_index;
  u32 context;
  u32 enable_disable;
  u32 pid;
};

/** \brief Reply for Want Stats request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define want_stats_reply
{
  u32 context;
  i32 retval;
};

/** \brief Want stats counters structure 
    @param vnet_counter_type- such as ip4, ip6, punts, etc
    @param is_combined - rx & tx total (all types) counts   
    @param first_sw_if_index - first sw index in block of index, counts
    @param count - number of interfaces this stats block includes counters for
    @param data - contiguous block of vlib_counter_t structures 
*/
define vnet_interface_counters
{
  /* enums - plural - in vnet/interface.h */
  u8 vnet_counter_type;
  u8 is_combined;
  u32 first_sw_if_index;
  u32 count;
  u8 data[count];
};

typeonly manual_print manual_endian define ip4_fib_counter
{
  u32 address;
  u8 address_length;
  u64 packets;
  u64 bytes;
};

manual_print manual_endian define vnet_ip4_fib_counters
{
  u32 vrf_id;
  u32 count;
  vl_api_ip4_fib_counter_t c[count];
};

typeonly manual_print manual_endian define ip6_fib_counter
{
  u64 address[2];
  u8 address_length;
  u64 packets;
  u64 bytes;
};

manual_print manual_endian define vnet_ip6_fib_counters
{
  u32 vrf_id;
  u32 count;
  vl_api_ip6_fib_counter_t c[count];
};

/** \brief Request for a single block of summary stats
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define vnet_get_summary_stats
{
  u32 client_index;
  u32 context;
};

/** \brief Reply for vnet_get_summary_stats request
    @param context - sender context, to match reply w/ request
    @param retval - return code for request
    @param total_pkts -  
    @param total_bytes -
    @param vector_rate - 
*/
define vnet_summary_stats_reply
{
  u32 context;
  i32 retval;
  u64 total_pkts[2];
  u64 total_bytes[2];
  f64 vector_rate;
};

/** \brief OAM event structure
    @param dst_address[] - 
    @param state
*/
define oam_event
{
  u8 dst_address[4];
  u8 state;
};

/** \brief Want OAM events request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param enable_disable- enable if non-zero, else disable
    @param pid - pid of the requesting process
*/
define want_oam_events
{
  u32 client_index;
  u32 context;
  u32 enable_disable;
  u32 pid;
};

/** \brief Want OAM events response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the want oam stats request
*/
define want_oam_events_reply
{
  u32 context;
  i32 retval;
};

/** \brief OAM add / del target request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param vrf_id - vrf_id of the target
    @param src_address[] - source address to use for the updates 
    @param dst_address[] - destination address of the target
    @param is_add - add target if non-zero, else delete
*/
define oam_add_del
{
  u32 client_index;
  u32 context;
  u32 vrf_id;
  u8 src_address[4];
  u8 dst_address[4];
  u8 is_add;
};

/** \brief OAM add / del target response
    @param context - sender context, to match reply w/ request
    @param retval - return code of the request
*/
define oam_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Reset fib table request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param vrf_id - vrf/table id of the fib table to reset
    @param is_ipv6 - an ipv6 fib to reset if non-zero, else ipv4
*/
define reset_fib
{
  u32 client_index;
  u32 context;
  u32 vrf_id;
  u8 is_ipv6;
};

/** \brief Reset fib response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the reset bfib request
*/
define reset_fib_reply
{
  u32 context;
  i32 retval;
};

/** \brief DHCP Proxy config add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param vrf_id - vrf id
    @param if_ipv6 - ipv6 if non-zero, else ipv4
    @param is_add - add the config if non-zero, else delete
    @param insert_circuit_id - option82 suboption 1 fib number
    @param dhcp_server[] - server address
    @param dhcp_src_address[] - <fix this, need details>
*/
define dhcp_proxy_config
{
  u32 client_index;
  u32 context;
  u32 vrf_id;
  u8 is_ipv6;
  u8 is_add;
  u8 insert_circuit_id;
  u8 dhcp_server[16];
  u8 dhcp_src_address[16];
};

/** \brief DHCP Proxy config response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define dhcp_proxy_config_reply
{
  u32 context;
  i32 retval;
};

/** \brief DHCP Proxy set / unset vss request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param tbl_id - table id
    @param oui - first part of vpn id
    @param fib_id - second part of vpn id
    @param is_ipv6 - ip6 if non-zero, else ip4
    @param is_add - set vss if non-zero, else delete
*/
define dhcp_proxy_set_vss
{
  u32 client_index;
  u32 context;
  u32 tbl_id;
  u32 oui;
  u32 fib_id;
  u8 is_ipv6;
  u8 is_add;
};

/** \brief DHCP proxy set / unset vss response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define dhcp_proxy_set_vss_reply
{
  u32 context;
  i32 retval;
};

/** \brief Set the ip flow hash config for a fib request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param vrf_id - vrf/fib id
    @param is_ipv6 - if non-zero the fib is ip6, else ip4
    @param src - if non-zero include src in flow hash
    @param dst - if non-zero include dst in flow hash
    @param sport - if non-zero include sport in flow hash
    @param dport - if non-zero include dport in flow hash
    @param proto -if non-zero include proto in flow hash
    @param reverse - if non-zero include reverse in flow hash
*/
define set_ip_flow_hash
{
  u32 client_index;
  u32 context;
  u32 vrf_id;
  u8 is_ipv6;
  u8 src;
  u8 dst;
  u8 sport;
  u8 dport;
  u8 proto;
  u8 reverse;
};

/** \brief Set the ip flow hash config for a fib response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define set_ip_flow_hash_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPv6 router advertisement config request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param suppress -
    @param managed -
    @param other -
    @param ll_option -
    @param send_unicast -
    @param cease -
    @param is_no -
    @param default_router -
    @param max_interval -
    @param min_interval -
    @param lifetime -
    @param initial_count -
    @param initial_interval -
*/
define sw_interface_ip6nd_ra_config
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 suppress;
  u8 managed;
  u8 other;
  u8 ll_option;
  u8 send_unicast;
  u8 cease;
  u8 is_no;
  u8 default_router;
  u32 max_interval;
  u32 min_interval;
  u32 lifetime;
  u32 initial_count;
  u32 initial_interval;
};

/** \brief IPv6 router advertisement config response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define sw_interface_ip6nd_ra_config_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPv6 router advertisement prefix config request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - 
    @param address[] -
    @param address_length -
    @param use_default -
    @param no_advertise -
    @param off_link -
    @param no_autoconfig -
    @param no_onlink -
    @param is_no -
    @param val_lifetime -
    @param pref_lifetime -
*/
define sw_interface_ip6nd_ra_prefix
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 address[16];
  u8 address_length;
  u8 use_default;
  u8 no_advertise;
  u8 off_link;
  u8 no_autoconfig;
  u8 no_onlink;
  u8 is_no;
  u32 val_lifetime;
  u32 pref_lifetime;
};

/** \brief IPv6 router advertisement prefix config response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define sw_interface_ip6nd_ra_prefix_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPv6 interface enable / disable 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 enable - if non-zero enable ip6 on interface, else disable
*/
define sw_interface_ip6_enable_disable
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 enable;                    /* set to true if enable */
};

/** \brief IPv6 interface enable / disable response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define sw_interface_ip6_enable_disable_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPv6 set link local address on interface request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface to set link local on
    @param address[] - the new link local address
    @param address_length - link local address length
*/
define sw_interface_ip6_set_link_local_address
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 address[16];
  u8 address_length;
};

/** \brief IPv6 set link local address on interface response
    @param context - sender context, to match reply w/ request
    @param retval - error code for the request
*/
define sw_interface_ip6_set_link_local_address_reply
{
  u32 context;
  i32 retval;
};

/** \brief Set unnumbered interface add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface with an IP address
    @param unnumbered_sw_if_index - interface which will use the address
    @param is_add - if non-zero set the association, else unset it
*/
define sw_interface_set_unnumbered
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;              /* use this intfc address */
  u32 unnumbered_sw_if_index;   /* on this interface */
  u8 is_add;
};

/** \brief Set unnumbered interface add / del response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define sw_interface_set_unnumbered_reply
{
  u32 context;
  i32 retval;
};

/** \brief Create loopback interface request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param mac_address - mac addr to assign to the interface if none-zero
*/
define create_loopback
{
  u32 client_index;
  u32 context;
  u8 mac_address[6];
};

/** \brief Create loopback interface response
    @param context - sender context, to match reply w/ request
    @param sw_if_index - sw index of the interface that was created
    @param retval - return code for the request
*/
define create_loopback_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief Delete loopback interface request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - sw index of the interface that was created
*/
define delete_loopback
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
};

/** \brief Delete loopback interface response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define delete_loopback_reply
{
  u32 context;
  i32 retval;
};

/** \brief Control ping from client to api server request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define control_ping
{
  u32 client_index;
  u32 context;
};

/** \brief Control ping from the client to the server response
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param vpe_pid - the pid of the vpe, returned by the server
*/
define control_ping_reply
{
  u32 context;
  i32 retval;
  u32 client_index;
  u32 vpe_pid;
};

/** \brief Control ping from client to api server request, no print json output
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define noprint_control_ping
{
  u32 client_index;
  u32 context;
};

/** \brief Control ping from the client to the server response
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param vpe_pid - the pid of the vpe, returned by the server
*/
define noprint_control_ping_reply
{
  u32 context;
  i32 retval;
  u32 client_index;
  u32 vpe_pid;
};

/** \brief Process a vpe parser cli string request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param cmd_in_shmem - pointer to cli command string
*/
define cli_request
{
  u32 client_index;
  u32 context;
  u64 cmd_in_shmem;
};

/** \brief vpe parser cli string response
    @param context - sender context, to match reply w/ request
    @param retval - return code for request
    @param reply_in_shmem - Reply string from cli processing if any
*/
define cli_reply
{
  u32 context;
  i32 retval;
  u64 reply_in_shmem;
};

/** \brief Set max allowed ARP or ip6 neighbor entries request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_ipv6 - neighbor limit if non-zero, else ARP limit
    @param arp_neighbor_limit - the new limit, defaults are ~ 50k
*/
define set_arp_neighbor_limit
{
  u32 client_index;
  u32 context;
  u8 is_ipv6;
  u32 arp_neighbor_limit;
};

/** \brief Set max allowed ARP or ip6 neighbor entries response
    @param context - sender context, to match reply w/ request
    @param retval - return code for request
*/
define set_arp_neighbor_limit_reply
{
  u32 context;
  i32 retval;
};

/** \brief L2 interface patch add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param rx_sw_if_index - receive side interface 
    @param tx_sw_if_index - transmit side interface
    @param is_add - if non-zero set up the interface patch, else remove it
*/
define l2_patch_add_del
{
  u32 client_index;
  u32 context;
  u32 rx_sw_if_index;
  u32 tx_sw_if_index;
  u8 is_add;
};

/** \brief L2 interface patch add / del response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define l2_patch_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPv6 segment routing tunnel add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add the tunnel if non-zero, else delete it
    @param name[] - tunnel name (len. 64)
    @param src_address[] -
    @param dst_address[] -
    @param dst_mask_width -
    @param inner_vrf_id -
    @param outer_vrf_id -
    @param flags_net_byte_order -
    @param n_segments -
    @param n_tags -
    @param segs_and_tags[] -
    @param policy_name[] - name of policy to associate this tunnel to (len. 64)
*/
define sr_tunnel_add_del
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 name[64];
  u8 src_address[16];
  u8 dst_address[16];
  u8 dst_mask_width;
  u32 inner_vrf_id;
  u32 outer_vrf_id;
  u16 flags_net_byte_order;
  u8 n_segments;
  u8 n_tags;
  u8 segs_and_tags[0];
  u8 policy_name[64];
};

/** \brief IPv6 segment routing tunnel add / del response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define sr_tunnel_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPv6 segment routing policy add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add the tunnel if non-zero, else delete it
    @param name[] - policy name (len. 64)
    @param tunnel_names[] -
*/
define sr_policy_add_del
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 name[64];
  u8 tunnel_names[0];
};

/** \brief IPv6 segment routing policy add / del response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define sr_policy_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPv6 segment routing multicast map to policy add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add the tunnel if non-zero, else delete it
    @param multicast_address[] - IP6 multicast address
    @param policy_name[] = policy name (len.64)
*/
define sr_multicast_map_add_del
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 multicast_address[16];
  u8 policy_name[64];
};

/** \brief IPv6 segment routing multicast map to policy add / del response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define sr_multicast_map_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Interface set vpath 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 enable - if non-zero enable, else disable
*/
define sw_interface_set_vpath
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 enable;
};

/** \brief Interface set vpath response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define sw_interface_set_vpath_reply
{
  u32 context;
  i32 retval;
};

/** \brief MPLS Ethernet add / del tunnel request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param vrf_id - vrf_id, only for IP4
    @param sw_if_index - interface used to reach neighbor
    @param is_add - add if set, tunnel delete if 0
    @param dst_mac_address - 
    @param adj_address - 
    @param adj_address_length -
*/
define mpls_ethernet_add_del_tunnel
{
  u32 client_index;
  u32 context;
  u32 vrf_id;
  u32 tx_sw_if_index;
  u8 is_add;
  u8 l2_only;
  u8 dst_mac_address[6];
  u8 adj_address[4];
  u8 adj_address_length;
};

/** \brief Reply for MPLS Ethernet add / delete tunnel request
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define mpls_ethernet_add_del_tunnel_reply
{
  u32 context;
  i32 retval;
  u32 tunnel_sw_if_index;
};
/** \brief MPLS Ethernet add/ del tunnel 2
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param inner_vrf_id - 
    @param outer_vrf_id - 
    @param resolve_attempts - 
    @param resolve_opaque - 
    @param resolve_if_needed -
    @param is_add -
    @param adj_address -
    @param adj_address_length -
    @param next_hop_ip4_address_in_outer_vrf -
*/
define mpls_ethernet_add_del_tunnel_2
{
  u32 client_index;
  u32 context;
  u32 inner_vrf_id;
  u32 outer_vrf_id;
  u32 resolve_attempts;
  u32 resolve_opaque;           /* no need to set this */
  u8 resolve_if_needed;
  u8 is_add;
  u8 l2_only;
  u8 adj_address[4];
  u8 adj_address_length;
  u8 next_hop_ip4_address_in_outer_vrf[4];
};

/** \brief MPLS Ethernet add/ del tunnel 2
    @param context - sender context, to match reply w/ request
    @param retval - return code for add /del request
*/
define mpls_ethernet_add_del_tunnel_2_reply
{
  u32 context;
  i32 retval;
};

/** \brief Set L2 XConnect between two interfaces request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param rx_sw_if_index - Receive interface index
    @param tx_sw_if_index - Transmit interface index
    @param enable - enable xconnect if not 0, else set to L3 mode
*/
define sw_interface_set_l2_xconnect
{
  u32 client_index;
  u32 context;
  u32 rx_sw_if_index;
  u32 tx_sw_if_index;
  u8 enable;
};

/** \brief Set L2 XConnect response
    @param context - sender context, to match reply w/ request
    @param retval - L2 XConnect request return code
*/
define sw_interface_set_l2_xconnect_reply
{
  u32 context;
  i32 retval;
};

/** \brief Interface bridge mode request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param rx_sw_if_index - the interface
    @param bd_id - bridge domain id
    @param bvi - Setup interface as a bvi, bridge mode only
    @param shg - Shared horizon group, for bridge mode only
    @param enable - Enable beige mode if not 0, else set to L3 mode
*/
define sw_interface_set_l2_bridge
{
  u32 client_index;
  u32 context;
  u32 rx_sw_if_index;
  u32 bd_id;
  u8 shg;
  u8 bvi;
  u8 enable;
};

/** \brief Interface bridge mode response
    @param context - sender context, to match reply w/ request
    @param retval - Bridge mode request return code
*/
define sw_interface_set_l2_bridge_reply
{
  u32 context;
  i32 retval;
};

/** \brief L2 FIB add entry request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param mac - the entry's mac address
    @param bd_id - the entry's bridge domain id
    @param sw_if_index - the interface
    @param is_add - If non zero add the entry, else delete it
    @param static_mac - 
    @param filter_mac -
*/
define l2fib_add_del
{
  u32 client_index;
  u32 context;
  u64 mac;
  u32 bd_id;
  u32 sw_if_index;
  u8 is_add;
  u8 static_mac;
  u8 filter_mac;
  u8 bvi_mac;
};

/** \brief L2 FIB add entry response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the add l2fib entry request
*/
define l2fib_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Set L2 flags request !!! TODO - need more info, feature bits in l2_input.h
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface 
    @param is_set - if non-zero, set the bits, else clear them
    @param feature_bitmap - non-zero bits to set or clear
*/
define l2_flags
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 is_set;
  u32 feature_bitmap;
};

/** \brief Set L2 bits response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the set l2 bits request
*/
define l2_flags_reply
{
  u32 context;
  i32 retval;
  u32 resulting_feature_bitmap;
};

/** \brief Set bridge flags (such as L2_LEARN, L2_FWD, L2_FLOOD, 
    L2_UU_FLOOD, or L2_ARP_TERM) request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param bd_id - the bridge domain to set the flags for
    @param is_set - if non-zero, set the flags, else clear them
    @param feature_bitmap - bits that are non-zero to set or clear
*/
define bridge_flags
{
  u32 client_index;
  u32 context;
  u32 bd_id;
  u8 is_set;
  u32 feature_bitmap;
};

/** \brief Set bridge flags response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the set bridge flags request
    @param resulting_feature_bitmap - the feature bitmap value after the request is implemented
*/
define bridge_flags_reply
{
  u32 context;
  i32 retval;
  u32 resulting_feature_bitmap;
};

/** \brief Set bridge domain ip to mac entry request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param bd_id - the bridge domain to set the flags for
    @param is_add - if non-zero, add the entry, else clear it
    @param is_ipv6 - if non-zero, ipv6 address, else ipv4 address
    @param mac_address - MAC address
    @param 
*/
define bd_ip_mac_add_del
{
  u32 client_index;
  u32 context;
  u32 bd_id;
  u8 is_add;
  u8 is_ipv6;
  u8 ip_address[16];
  u8 mac_address[6];
};

/** \brief Set bridge domain ip to mac entry response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the set bridge flags request
*/
define bd_ip_mac_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Add/Delete classification table request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add- if non-zero add the table, else delete it
    @param table_index - if add, reuturns index of the created table, else specifies the table to delete  
    @param nbuckets - number of buckets when adding a table
    @param memory_size - memory size when adding a table
    @param match_n_vectors - number of match vectors
    @param next_table_index - index of next table
    @param miss_next_index - index of miss table
    @param mask[] - match mask
*/
define classify_add_del_table
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u32 table_index;
  u32 nbuckets;
  u32 memory_size;
  u32 skip_n_vectors;
  u32 match_n_vectors;
  u32 next_table_index;
  u32 miss_next_index;
  u8 mask[0];
};

/** \brief Add/Delete classification table response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the table add/del requst
    @param new_table_index - for add, returned index of the new table
    @param skip_n_vectors - for add, returned value of skip_n_vectors in table
    @param match_n_vectors -for add, returned value of match_n_vectors in table
*/
define classify_add_del_table_reply
{
  u32 context;
  i32 retval;
  u32 new_table_index;
  u32 skip_n_vectors;
  u32 match_n_vectors;
};

/** \brief Classify add / del session request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add session if non-zero, else delete
    @param table_index - index of the table to add/del the session, required
    @param hit_next_index - for add, hit_next_index of new session, required
    @param opaque_index - for add, opaque_index of new session
    @param advance -for add, advance value for session
    @param match[] - for add, match value for session, required
*/
define classify_add_del_session
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u32 table_index;
  u32 hit_next_index;
  u32 opaque_index;
  i32 advance;
  u8 match[0];
};

/** \brief Classify add / del session response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the add/del session request
*/
define classify_add_del_session_reply
{
  u32 context;
  i32 retval;
};

/** \brief Set/unset the classification table for an interface request 
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_ipv6 - ipv6 if non-zero, else ipv4
    @param sw_if_index - interface to associate with the table
    @param table_index - index of the table, if ~0 unset the table
*/
define classify_set_interface_ip_table
{
  u32 client_index;
  u32 context;
  u8 is_ipv6;
  u32 sw_if_index;
  u32 table_index;              /* ~0 => off */
};

/** \brief Set/unset interface classification table response 
    @param context - sender context, to match reply w/ request
    @param retval - return code
*/
define classify_set_interface_ip_table_reply
{
  u32 context;
  i32 retval;
};

/** \brief Set/unset l2 classification tables for an interface request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface to set/unset tables for
    @param ip4_table_index - ip4 index, use ~0 for all 3 indexes to unset
    @param ip6_table_index - ip6 index
    @param other_table_index - other index
*/
define classify_set_interface_l2_tables
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  /* 3 x ~0 => off */
  u32 ip4_table_index;
  u32 ip6_table_index;
  u32 other_table_index;
};

/** \brief Set/unset l2 classification tables for an interface response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define classify_set_interface_l2_tables_reply
{
  u32 context;
  i32 retval;
};

/** \brief Get node index using name request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param node_name[] - name of the node
*/
define get_node_index
{
  u32 client_index;
  u32 context;
  u8 node_name[64];
};

/** \brief Get node index using name request
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param node_index - index of the desired node if found, else ~0
*/
define get_node_index_reply
{
  u32 context;
  i32 retval;
  u32 node_index;
};

/** \brief Set the next node for a given node request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param node_name[] - node to add the next node to
    @param next_name[] - node to add as the next node
*/
define add_node_next
{
  u32 client_index;
  u32 context;
  u8 node_name[64];
  u8 next_name[64];
};

/** \brief IP Set the next node for a given node response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the add next node request
    @param next_index - the index of the next node if success, else ~0
*/
define add_node_next_reply
{
  u32 context;
  i32 retval;
  u32 next_index;
};

/** \brief DHCP Proxy config 2 add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param rx_vrf_id - receive vrf id
    @param server_vrf_id - server vrf id
    @param if_ipv6 - ipv6 if non-zero, else ipv4
    @param is_add - add the config if non-zero, else delete
    @param insert_circuit_id - option82 suboption 1 fib number
    @param dhcp_server[] - server address
    @param dhcp_src_address[] - <fix this, need details>
*/
define dhcp_proxy_config_2
{
  u32 client_index;
  u32 context;
  u32 rx_vrf_id;
  u32 server_vrf_id;
  u8 is_ipv6;
  u8 is_add;
  u8 insert_circuit_id;
  u8 dhcp_server[16];
  u8 dhcp_src_address[16];
};

/** \brief DHCP Proxy config 2 add / del response
    @param context - sender context, to match reply w/ request
    @param retval - return code for request
*/
define dhcp_proxy_config_2_reply
{
  u32 context;
  i32 retval;
};

/** \brief l2tpv3 tunnel interface create request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param client_address - remote client tunnel ip address
    @param client_address - local tunnel ip address
    @param is_ipv6 - ipv6 if non-zero, else ipv4
    @param local_session_id - local tunnel session id
    @param remote_session_id - remote tunnel session id
    @param local_cookie - local tunnel cookie
    @param l2_sublayer_present - l2 sublayer is present in packets if non-zero
    @param encap_vrf_id - fib identifier used for outgoing encapsulated packets
*/
define l2tpv3_create_tunnel
{
  u32 client_index;
  u32 context;
  u8 client_address[16];
  u8 our_address[16];
  u8 is_ipv6;
  u32 local_session_id;
  u32 remote_session_id;
  u64 local_cookie;
  u64 remote_cookie;
  u8 l2_sublayer_present;
  u32 encap_vrf_id;
};

/** \brief l2tpv3 tunnel interface create response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param sw_if_index - index of the new tunnel interface
*/
define l2tpv3_create_tunnel_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

define l2tpv3_set_tunnel_cookies
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u64 new_local_cookie;
  u64 new_remote_cookie;
};

/** \brief L2TP tunnel set cookies response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define l2tpv3_set_tunnel_cookies_reply
{
  u32 context;
  i32 retval;
};

define sw_if_l2tpv3_tunnel_details
{
  u32 context;
  u32 sw_if_index;
  u8 interface_name[64];
  u8 client_address[16];
  u8 our_address[16];
  u32 local_session_id;
  u32 remote_session_id;
  u64 local_cookie[2];
  u64 remote_cookie;
  u8 l2_sublayer_present;
};

define sw_if_l2tpv3_tunnel_dump
{
  u32 client_index;
  u32 context;
};

/** \brief L2 fib clear table request, clear all mac entries in the l2 fib
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define l2_fib_clear_table
{
  u32 client_index;
  u32 context;
};

/** \brief L2 fib clear table response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define l2_fib_clear_table_reply
{
  u32 context;
  i32 retval;
};

/** \brief L2 interface ethernet flow point filtering enable/disable request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface to enable/disable filtering on
    @param enable_disable - if non-zero enable filtering, else disable
*/
define l2_interface_efp_filter
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u32 enable_disable;
};

/** \brief L2 interface ethernet flow point filtering response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define l2_interface_efp_filter_reply
{
  u32 context;
  i32 retval;
};

define l2tpv3_interface_enable_disable
{
  u32 client_index;
  u32 context;
  u8 enable_disable;
  u32 sw_if_index;
};

define l2tpv3_interface_enable_disable_reply
{
  u32 context;
  i32 retval;
};

define l2tpv3_set_lookup_key
{
  u32 client_index;
  u32 context;
  /* 0 = ip6 src_address, 1 = ip6 dst_address, 2 = session_id */
  u8 key;
};

define l2tpv3_set_lookup_key_reply
{
  u32 context;
  i32 retval;
};

define vxlan_add_del_tunnel
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 is_ipv6;
  u8 src_address[16];
  u8 dst_address[16];
  u32 encap_vrf_id;
  u32 decap_next_index;
  u32 vni;
};

define vxlan_add_del_tunnel_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

define vxlan_tunnel_dump
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
};

define vxlan_tunnel_details
{
  u32 context;
  u32 sw_if_index;
  u8 src_address[16];
  u8 dst_address[16];
  u32 encap_vrf_id;
  u32 decap_next_index;
  u32 vni;
  u8 is_ipv6;
};

define gre_add_del_tunnel
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 is_ipv6;
  u8 src_address[16];
  u8 dst_address[16];
  u32 outer_fib_id;
};

define gre_add_del_tunnel_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

define gre_tunnel_dump
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
};

define gre_tunnel_details
{
  u32 context;
  u32 sw_if_index;
  u8 is_ipv6;
  u8 src_address[16];
  u8 dst_address[16];
  u32 outer_fib_id;
};

/** \brief L2 interface vlan tag rewrite configure request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface the operation is applied to
    @param vtr_op - Choose from l2_vtr_op_t enum values
    @param push_dot1q - first pushed flag dot1q id set, else dot1ad
    @param tag1 - Needed for any push or translate vtr op
    @param tag2 - Needed for any push 2 or translate x-2 vtr ops
*/
define l2_interface_vlan_tag_rewrite
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u32 vtr_op;
  u32 push_dot1q;               // ethertype of first pushed tag is dot1q/dot1ad
  u32 tag1;                     // first pushed tag
  u32 tag2;                     // second pushed tag
};

/** \brief L2 interface vlan tag rewrite response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define l2_interface_vlan_tag_rewrite_reply
{
  u32 context;
  i32 retval;
};

/** \brief vhost-user interface create request
    @param client_index - opaque cookie to identify the sender
    @param is_server - our side is socket server
    @param sock_filename - unix socket filename, used to speak with frontend
    @param use_custom_mac - enable or disable the use of the provided hardware address
    @param mac_address - hardware address to use if 'use_custom_mac' is set
*/
define create_vhost_user_if
{
  u32 client_index;
  u32 context;
  u8 is_server;
  u8 sock_filename[256];
  u8 renumber;
  u32 custom_dev_instance;
  u8 use_custom_mac;
  u8 mac_address[6];
};

/** \brief vhost-user interface create response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param sw_if_index - interface the operation is applied to
*/
define create_vhost_user_if_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief vhost-user interface modify request
    @param client_index - opaque cookie to identify the sender
    @param is_server - our side is socket server
    @param sock_filename - unix socket filename, used to speak with frontend
*/
define modify_vhost_user_if
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 is_server;
  u8 sock_filename[256];
  u8 renumber;
  u32 custom_dev_instance;
};

/** \brief vhost-user interface modify response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define modify_vhost_user_if_reply
{
  u32 context;
  i32 retval;
};

/** \brief vhost-user interface delete request
    @param client_index - opaque cookie to identify the sender
*/
define delete_vhost_user_if
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
};

/** \brief vhost-user interface delete response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define delete_vhost_user_if_reply
{
  u32 context;
  i32 retval;
};

define create_subif
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u32 sub_id;

  /* These fields map directly onto the subif template */
  u8 no_tags;
  u8 one_tag;
  u8 two_tags;
  u8 dot1ad;                    // 0 = dot1q, 1=dot1ad
  u8 exact_match;
  u8 default_sub;
  u8 outer_vlan_id_any;
  u8 inner_vlan_id_any;
  u16 outer_vlan_id;
  u16 inner_vlan_id;
};

define create_subif_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief show version
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define show_version
{
  u32 client_index;
  u32 context;
};

/** \brief show version response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param program - name of the program (vpe)
    @param version  - version of the program
    @param build_directory - root of the workspace where the program was built
*/
define show_version_reply
{
  u32 context;
  i32 retval;
  u8 program[32];
  u8 version[32];
  u8 build_date[32];
  u8 build_directory[256];
};

/** \brief Vhost-user interface details structure (fix this)
    @param sw_if_index - index of the interface
    @param interface_name - name of interface
    @param virtio_net_hdr_sz - net header size
    @param features - interface features
    @param is_server - vhost-user server socket
    @param sock_filename - socket filename
    @param num_regions - number of used memory regions
*/
define sw_interface_vhost_user_details
{
  u32 context;
  u32 sw_if_index;
  u8 interface_name[64];
  u32 virtio_net_hdr_sz;
  u64 features;
  u8 is_server;
  u8 sock_filename[256];
  u32 num_regions;
  i32 sock_errno;
};

/* works */
define sw_interface_vhost_user_dump
{
  u32 client_index;
  u32 context;
};

define ip_address_details
{
  u32 client_index;
  u32 context;
  u8 ip[16];
  u8 prefix_length;
};

define ip_address_dump
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 is_ipv6;
};

define ip_details
{
  u32 sw_if_index;
  u32 context;
};

define ip_dump
{
  u32 client_index;
  u32 context;
  u8 is_ipv6;
};

/** \brief l2 fib table entry structure
    @param bd_id - the l2 fib / bridge domain table id
    @param mac - the entry's mac address
    @param sw_if_index - index of the interface
    @param static_mac - the entry is statically configured.
    @param filter_mac - the entry is a mac filter entry.
    @param bvi_mac - the mac address is a bridge virtual interface
*/
define l2_fib_table_entry
{
  u32 context;
  u32 bd_id;
  u64 mac;
  u32 sw_if_index;
  u8 static_mac;
  u8 filter_mac;
  u8 bvi_mac;
};

/** \brief Dump l2 fib (aka bridge domain) table
    @param client_index - opaque cookie to identify the sender
    @param bd_id - the l2 fib / bridge domain table identifier
*/
define l2_fib_table_dump
{
  u32 client_index;
  u32 context;
  u32 bd_id;
};

define vxlan_gpe_add_del_tunnel
{
  u32 client_index;
  u32 context;
  u8 is_ipv6;
  u8 local[16];
  u8 remote[16];
  u32 encap_vrf_id;
  u32 decap_vrf_id;
  u8 protocol;
  u32 vni;
  u8 is_add;
};

define vxlan_gpe_add_del_tunnel_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

define vxlan_gpe_tunnel_dump
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
};

define vxlan_gpe_tunnel_details
{
  u32 context;
  u32 sw_if_index;
  u8 local[16];
  u8 remote[16];
  u32 vni;
  u8 protocol;
  u32 encap_vrf_id;
  u32 decap_vrf_id;
  u8 is_ipv6;
};

/** \brief add or delete locator_set
    @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 locator_set_name - locator name
    @param locator_num - number of locators
    @param locators - Lisp locator data
*/
define lisp_add_del_locator_set
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 locator_set_name[64];
  u32 locator_num;
  u8 locators[locator_num];
};

/** \brief Reply for locator_set add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param ls_index - locator set index
*/
define lisp_add_del_locator_set_reply
{
  u32 context;
  i32 retval;
  u32 ls_index;
};

/** \brief add or delete locator for locator_set
    @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 locator_set_name - name of locator_set to add/del locator
    @param sw_if_index - index of the interface
    @param priority - priority of the lisp locator
    @param weight - weight of the lisp locator
*/
define lisp_add_del_locator
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 locator_set_name[64];
  u32 sw_if_index;
  u8 priority;
  u8 weight;
};

/** \brief Reply for locator add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_add_del_locator_reply
{
  u32 context;
  i32 retval;
};

/** \brief add or delete lisp eid-table
    @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 eid_type:
      0 : ipv4
      1 : ipv6
      2 : mac
    @param eid - EID can be ip4, ip6 or mac
    @param prefix_len - prefix len
    @param locator_set_name - name of locator_set to add/del eid-table
    @param vni - virtual network instance
*/
define lisp_add_del_local_eid
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 eid_type;
  u8 eid[16];
  u8 prefix_len;
  u8 locator_set_name[64];
  u32 vni;
};

/** \brief Reply for local_eid add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_add_del_local_eid_reply
{
  u32 context;
  i32 retval;
};

/** \brief add or delete lisp gpe 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 eid_type -
      0 : ipv4
      1 : ipv6
      2 : mac
    @param rmt_eid - remote eid
    @param lcl_eid - local eid
    @param rmt_len - remote prefix len
    @param lcl_len - local prefix len
    @param vni - virtual network identifier
    @param dp_table - vrf/bridge domain id
    @param loc_num - number of locators
    @param lcl_locs - array of local locators
    @param rmt_locs - array of remote locators
    @param action - negative action when 0 locators configured
*/
define lisp_gpe_add_del_fwd_entry
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 eid_type;
  u8 rmt_eid[16];
  u8 lcl_eid[16];
  u8 rmt_len;
  u8 lcl_len;
  u32 vni;
  u32 dp_table;
  u32 loc_num;
  u8 lcl_locs[loc_num];
  u8 rmt_locs[loc_num];
  u8 action;
};

/** \brief Reply for gpe_fwd_entry add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_gpe_add_del_fwd_entry_reply
{
  u32 context;
  i32 retval;
};

/** \brief add or delete map-resolver
    @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 is_ipv6 - if non-zero the address is ipv6, else ipv4
    @param ip_address - array of address bytes
*/
define lisp_add_del_map_resolver
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 is_ipv6;
  u8 ip_address[16];
};

/** \brief Reply for map_resolver add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_add_del_map_resolver_reply
{
  u32 context;
  i32 retval;
};

/** \brief enable or disable lisp-gpe protocol
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_en - enable protocol if non-zero, else disable
*/
define lisp_gpe_enable_disable
{
  u32 client_index;
  u32 context;
  u8 is_en;
};

/** \brief Reply for gpe enable/disable
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_gpe_enable_disable_reply
{
  u32 context;
  i32 retval;
};

/** \brief enable or disable LISP feature
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_en - enable protocol if non-zero, else disable
*/
define lisp_enable_disable
{
  u32 client_index;
  u32 context;
  u8 is_en;
};

/** \brief Reply for gpe enable/disable
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_enable_disable_reply
{
  u32 context;
  i32 retval;
};

/** \brief add or delete gpe_iface
    @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
*/
define lisp_gpe_add_del_iface
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 is_l2;
  u32 dp_table;
  u32 vni;
};

/** \brief Reply for gpe_iface add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_gpe_add_del_iface_reply
{
  u32 context;
  i32 retval;
};

/** \brief configure or disable LISP PITR node
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param ls_name - locator set name
    @param is_add - add locator set if non-zero, else disable pitr
*/
define lisp_pitr_set_locator_set
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 ls_name[64];
};

/** \brief Reply for lisp_pitr_set_locator_set
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_pitr_set_locator_set_reply
{
  u32 context;
  i32 retval;
};

/** \brief add or delete remote static mapping
    @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 is_src_dst - flag indicating src/dst based routing policy
    @param del_all - if set, delete all remote mappings
    @param vni - virtual network instance
    @param action - negative map-reply action
    @param eid_type -
      0 : ipv4
      1 : ipv6
      2 : mac
    @param deid - dst EID
    @param seid - src EID, valid only if is_src_dst is enabled
    @param rloc_num - number of remote locators
    @param rlocs - remote locator data
*/
define lisp_add_del_remote_mapping
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 is_src_dst;
  u8 del_all;
  u32 vni;
  u8 action;
  u8 eid_type;
  u8 eid[16];
  u8 eid_len;
  u8 seid[16];
  u8 seid_len;
  u32 rloc_num;
  u8 rlocs[rloc_num];
};

/** \brief Reply for lisp_add_del_remote_mapping
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_add_del_remote_mapping_reply
{
  u32 context;
  i32 retval;
};

/** \brief add or delete LISP adjacency adjacency
    @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 vni - virtual network instance
    @param eid_type -
      0 : ipv4
      1 : ipv6
      2 : mac
    @param deid - destination EID
    @param seid - source EID
*/
define lisp_add_del_adjacency
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u32 vni;
  u8 eid_type;
  u8 deid[16];
  u8 seid[16];
  u8 deid_len;
  u8 seid_len;
};

/** \brief Reply for lisp_add_del_adjacency
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_add_del_adjacency_reply
{
  u32 context;
  i32 retval;
};

/** \brief add or delete map request itr rlocs
    @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 locator_set_name - locator set name
*/
define lisp_add_del_map_request_itr_rlocs
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 locator_set_name[64];
};

/** \brief Reply for lisp_add_del_map_request_itr_rlocs
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/

define lisp_add_del_map_request_itr_rlocs_reply
{
  u32 context;
  i32 retval;
};

/** \brief map/unmap vni/bd_index to vrf
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add or delete mapping
    @param dp_table - virtual network id/bridge domain index
    @param vrf - vrf
*/
define lisp_eid_table_add_del_map
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u32 vni;
  u32 dp_table;
  u8 is_l2;
};

/** \brief Reply for lisp_eid_table_add_del_map
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define lisp_eid_table_add_del_map_reply
{
  u32 context;
  i32 retval;
};

/** \brief Request for map lisp locator status
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param locator_set_index - index of locator_set
    @param filter - filter type;
      Support value:
        0: all locator
        1: local locator
        2: remote locator
 */
define lisp_locator_dump
{
  u32 client_index;
  u32 context;
  u32 locator_set_index;
  u8 filter;
};

/** \brief LISP locator_set status
    @param local - if is set, then locator is local
    @param locator_set_name - name of the locator_set
    @param sw_if_index - sw_if_index of the locator
    @param priority - locator priority
    @param weight - locator weight
  */
define lisp_locator_details
{
  u32 context;
  u8 local;
  u32 sw_if_index;
  u8 is_ipv6;
  u8 ip_address[16];
  u8 priority;
  u8 weight;
};

/** \brief LISP locator_set status
    @param locator_set_name - name of the locator_set
    @param local - if is set, then locator_set is local
    @param locator_count - number of locator this stats block includes
    @param locator - locator data
 */
define lisp_locator_set_details
{
  u32 context;
  u8 local;
  u32 locator_set_index;
  u8 locator_set_name[64];
};

/** \brief Request for locator_set summary status
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param filter - filter type;
      Support value:
        0: all locator_set
        1: local locator_set
        2: remote locator_set
 */
define lisp_locator_set_dump
{
  u32 client_index;
  u32 context;
  u8 filter;
};

/** \brief Dump lisp eid-table
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param locator_set_index - index of locator_set
    @param is_local - local if non-zero, else remote
    @param eid_type:
      0 : ipv4
      1 : ipv6
      2 : mac
    @param eid - EID can be ip4, ip6 or mac
    @param prefix_len - prefix len
    @param vni - virtual network instance
    @param ttl - time to live
    @param authoritative - authoritative
*/

define lisp_eid_table_details
{
  u32 context;
  u32 locator_set_index;
  u8 is_local;
  u8 eid_type;
  u32 vni;
  u8 eid[16];
  u8 eid_prefix_len;
  u32 ttl;
  u8 authoritative;
};

/** \brief Request for eid table summary status
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param eid_set - if non-zero request info about specific mapping
    @param vni - virtual network instance; valid only if eid_set != 0
    @param prefix_length - prefix length if EID is IP address;
      valid only if eid_set != 0
    @param eid_type - EID type; valid only if eid_set != 0
      Supported values:
        0: EID is IPv4
        1: EID is IPv6
        2: EID is ethernet address
    @param eid - endpoint identifier
    @param filter - filter type;
      Support values:
        0: all eid
        1: local eid
        2: remote eid
 */
define lisp_eid_table_dump
{
  u32 client_index;
  u32 context;
  u8 eid_set;
  u8 prefix_length;
  u32 vni;
  u8 eid_type;
  u8 eid[16];
  u8 filter;
};

/** \brief Shows relationship between vni and vrf
    @param vrf - VRF index
    @param vni - vitual network instance
  */
define lisp_eid_table_map_details
{
  u32 context;
  u32 vni;
  u32 vrf;
};

/** \brief Request for lisp_eid_table_map_details
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
 */
define lisp_eid_table_map_dump
{
  u32 client_index;
  u32 context;
};

define lisp_gpe_tunnel_details
{
  u32 context;
  u32 tunnels;
  u8 is_ipv6;
  u8 source_ip[16];
  u8 destination_ip[16];
  u32 encap_fib_id;
  u32 decap_fib_id;
  u32 dcap_next;
  u8 lisp_ver;
  u8 next_protocol;
  u8 flags;
  u8 ver_res;
  u8 res;
  u32 iid;
};

/** \brief Request for gpe tunnel summary status
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
 */
define lisp_gpe_tunnel_dump
{
  u32 client_index;
  u32 context;
};

/** \brief LISP map resolver status
    @param locator_set_name - name of the locator_set
    @param is_ipv6 - if non-zero the address is ipv6, else ipv4
    @param ip_address - array of address bytes
 */
define lisp_map_resolver_details
{
  u32 context;
  u8 is_ipv6;
  u8 ip_address[16];
};

/** \brief Request for map resolver summary status
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
 */
define lisp_map_resolver_dump
{
  u32 client_index;
  u32 context;
};

/** \brief Request for lisp-gpe protocol status
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define show_lisp_status
{
  u32 client_index;
  u32 context;
};

/** \brief Status of lisp, enable or disable
    @param context - sender context, to match reply w/ request
    @param feature_status - lisp enable if non-zero, else disable
    @param gpe_status - lisp enable if non-zero, else disable
*/
define show_lisp_status_reply
{
  u32 context;
  i32 retval;
  u8 feature_status;
  u8 gpe_status;
};

/** \brief Get LISP map request itr rlocs status
    @param context - sender context, to match reply w/ request
    @param locator_set_name - name of the locator_set
 */
define lisp_get_map_request_itr_rlocs
{
  u32 client_index;
  u32 context;
};

/** \brief Request for map request itr rlocs summary status
 */
define lisp_get_map_request_itr_rlocs_reply
{
  u32 context;
  i32 retval;
  u8 locator_set_name[64];
};

/** \brief Request for lisp pitr status
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define show_lisp_pitr
{
  u32 client_index;
  u32 context;
};

/** \brief Status of lisp pitr, enable or disable
    @param context - sender context, to match reply w/ request
    @param status - lisp pitr enable if non-zero, else disable
    @param locator_set_name -  name of the locator_set
*/
define show_lisp_pitr_reply
{
  u32 context;
  i32 retval;
  u8 status;
  u8 locator_set_name[64];
};

/* Gross kludge, DGMS */
define interface_name_renumber
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u32 new_show_dev_instance;
};

define interface_name_renumber_reply
{
  u32 context;
  i32 retval;
};

/** \brief Register for ip4 arp resolution events
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param enable_disable - 1 => register for events, 0 => cancel registration
    @param pid - sender's pid
    @param address - the exact ip4 address of interest
*/
define want_ip4_arp_events
{
  u32 client_index;
  u32 context;
  u8 enable_disable;
  u32 pid;
  u32 address;
};

/** \brief Reply for interface events registration
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define want_ip4_arp_events_reply
{
  u32 context;
  i32 retval;
};

/** \brief Tell client about an ip4 arp resolution event
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param address - the exact ip4 address of interest
    @param pid - client pid registered to receive notification
    @param sw_if_index - interface which received ARP packet
    @param new_mac - the new mac address 
*/
define ip4_arp_event
{
  u32 client_index;
  u32 context;
  u32 address;
  u32 pid;
  u32 sw_if_index;
  u8 new_mac[6];
};

/** \brief L2 bridge domain add or delete request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param bd_id - the bridge domain to create
    @param flood - enable/disable bcast/mcast flooding in the bd
    @param uu_flood - enable/disable uknown unicast flood in the bd
    @param forward - enable/disable forwarding on all interfaces in the bd
    @param learn - enable/disable learning on all interfaces in the bd
    @param arp_term - enable/disable arp termination in the bd
    @param is_add - add or delete flag
*/
define bridge_domain_add_del
{
  u32 client_index;
  u32 context;
  u32 bd_id;
  u8 flood;
  u8 uu_flood;
  u8 forward;
  u8 learn;
  u8 arp_term;
  u8 is_add;
};

/** \brief L2 bridge domain add or delete response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the set bridge flags request
*/
define bridge_domain_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief L2 bridge domain request operational state details
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param bd_id - the bridge domain id desired or ~0 to request all bds
*/
define bridge_domain_dump
{
  u32 client_index;
  u32 context;
  u32 bd_id;
};

/** \brief L2 bridge domain operational state response
    @param bd_id - the bridge domain id
    @param flood - bcast/mcast flooding state on all interfaces in the bd
    @param uu_flood - uknown unicast flooding state on all interfaces in the bd
    @param forward - forwarding state on all interfaces in the bd
    @param learn - learning state on all interfaces in the bd
    @param arp_term - arp termination state on all interfaces in the bd
    @param n_sw_ifs - number of sw_if_index's in the domain
*/
define bridge_domain_details
{
  u32 context;
  u32 bd_id;
  u8 flood;
  u8 uu_flood;
  u8 forward;
  u8 learn;
  u8 arp_term;
  u32 bvi_sw_if_index;
  u32 n_sw_ifs;
};

/** \brief L2 bridge domain sw interface operational state response
    @param bd_id - the bridge domain id
    @param sw_if_index - sw_if_index in the domain
    @param shg - split horizon group for the interface
*/
define bridge_domain_sw_if_details
{
  u32 context;
  u32 bd_id;
  u32 sw_if_index;
  u8 shg;
};

/** \brief DHCP Client config add / del request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - index of the interface for DHCP client
    @param hostname - hostname
    @param is_add - add the config if non-zero, else delete
    @param want_dhcp_event - DHCP event sent to the sender
           via dhcp_compl_event API message if non-zero
    @param pid - sender's pid
*/
define dhcp_client_config
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 hostname[64];
  u8 is_add;
  u8 want_dhcp_event;
  u32 pid;
};

/** \brief DHCP Client config response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define dhcp_client_config_reply
{
  u32 context;
  i32 retval;
};

/** \brief Set/unset input ACL interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface to set/unset input ACL
    @param ip4_table_index - ip4 classify table index (~0 for skip)
    @param ip6_table_index - ip6 classify table index (~0 for skip)
    @param l2_table_index  -  l2 classify table index (~0 for skip)
    @param is_add - Set input ACL if non-zero, else unset
    Note: User is recommeneded to use just one valid table_index per call.
          (ip4_table_index, ip6_table_index, or l2_table_index)
*/
define input_acl_set_interface
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u32 ip4_table_index;
  u32 ip6_table_index;
  u32 l2_table_index;
  u8 is_add;
};

/** \brief Set/unset input ACL interface response
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
*/
define input_acl_set_interface_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPsec: Add/delete Security Policy Database
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add SPD if non-zero, else delete
    @param spd_id - SPD instance id (control plane allocated)
*/

define ipsec_spd_add_del
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u32 spd_id;
};

/** \brief Reply for IPsec: Add/delete Security Policy Database entry
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/

define ipsec_spd_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPsec: Add/delete SPD from interface

    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add security mode if non-zero, else delete
    @param sw_if_index - index of the interface
    @param spd_id - SPD instance id to use for lookups
*/


define ipsec_interface_add_del_spd
{
  u32 client_index;
  u32 context;

  u8 is_add;
  u32 sw_if_index;
  u32 spd_id;
};

/** \brief Reply for IPsec: Add/delete SPD from interface
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/

define ipsec_interface_add_del_spd_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPsec: Add/delete Security Policy Database entry

    See RFC 4301, 4.4.1.1 on how to match packet to selectors

    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add SPD if non-zero, else delete
    @param spd_id - SPD instance id (control plane allocated)
    @param priority - priority of SPD entry (non-unique value).  Used to order SPD matching - higher priorities match before lower
    @param is_outbound - entry applies to outbound traffic if non-zero, otherwise applies to inbound traffic
    @param is_ipv6 - remote/local address are IPv6 if non-zero, else IPv4
    @param remote_address_start - start of remote address range to match
    @param remote_address_stop - end of remote address range to match
    @param local_address_start - start of local address range to match
    @param local_address_stop - end of local address range to match
    @param protocol - protocol type to match [0 means any]
    @param remote_port_start - start of remote port range to match ...
    @param remote_port_stop - end of remote port range to match [0 to 65535 means ANY, 65535 to 0 means OPAQUE]
    @param local_port_start - start of local port range to match ...
    @param local_port_stop - end of remote port range to match [0 to 65535 means ANY, 65535 to 0 means OPAQUE]
    @param policy - 0 = bypass (no IPsec processing), 1 = discard (discard packet with ICMP processing), 2 = resolve (send request to control plane for SA resolving, and discard without ICMP processing), 3 = protect (apply IPsec policy using following parameters)
    @param sa_id - SAD instance id (control plane allocated)

*/

define ipsec_spd_add_del_entry
{
  u32 client_index;
  u32 context;
  u8 is_add;

  u32 spd_id;
  i32 priority;
  u8 is_outbound;

  // Selector
  u8 is_ipv6;
  u8 is_ip_any;
  u8 remote_address_start[16];
  u8 remote_address_stop[16];
  u8 local_address_start[16];
  u8 local_address_stop[16];

  u8 protocol;

  u16 remote_port_start;
  u16 remote_port_stop;
  u16 local_port_start;
  u16 local_port_stop;

  // Policy
  u8 policy;
  u32 sa_id;
};

/** \brief Reply for IPsec: Add/delete Security Policy Database entry
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/

define ipsec_spd_add_del_entry_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPsec: Add/delete Security Association Database entry
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add SAD entry if non-zero, else delete

    @param sad_id - sad id

    @param spi - security parameter index

    @param protocol - 0 = AH, 1 = ESP

    @param crypto_algorithm - 0 = Null, 1 = AES-CBC-128, 2 = AES-CBC-192, 3 = AES-CBC-256, 4 = 3DES-CBC
    @param crypto_key_length - length of crypto_key in bytes
    @param crypto_key - crypto keying material

    @param integrity_algorithm - 0 = None, 1 = MD5-96, 2 = SHA1-96, 3 = SHA-256, 4 = SHA-384, 5=SHA-512
    @param integrity_key_length - length of integrity_key in bytes
    @param integrity_key - integrity keying material

    @param use_extended_sequence_number - use ESN when non-zero

    @param is_tunnel - IPsec tunnel mode if non-zero, else transport mode
    @param is_tunnel_ipv6 - IPsec tunnel mode is IPv6 if non-zero, else IPv4 tunnel only valid if is_tunnel is non-zero
    @param tunnel_src_address - IPsec tunnel source address IPv6 if is_tunnel_ipv6 is non-zero, else IPv4. Only valid if is_tunnel is non-zero
    @param tunnel_dst_address - IPsec tunnel destination address IPv6 if is_tunnel_ipv6 is non-zero, else IPv4. Only valid if is_tunnel is non-zero

    To be added:
     Anti-replay
     IPsec tunnel address copy mode (to support GDOI)
 */

define ipsec_sad_add_del_entry
{
  u32 client_index;
  u32 context;
  u8 is_add;

  u32 sad_id;

  u32 spi;

  u8 protocol;

  u8 crypto_algorithm;
  u8 crypto_key_length;
  u8 crypto_key[128];

  u8 integrity_algorithm;
  u8 integrity_key_length;
  u8 integrity_key[128];

  u8 use_extended_sequence_number;

  u8 is_tunnel;
  u8 is_tunnel_ipv6;
  u8 tunnel_src_address[16];
  u8 tunnel_dst_address[16];
};

/** \brief Reply for IPsec: Add/delete Security Association Database entry
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/

define ipsec_sad_add_del_entry_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPsec: Update Security Association keys
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request

    @param sa_id - sa id

    @param crypto_key_length - length of crypto_key in bytes
    @param crypto_key - crypto keying material

    @param integrity_key_length - length of integrity_key in bytes
    @param integrity_key - integrity keying material
*/

define ipsec_sa_set_key
{
  u32 client_index;
  u32 context;

  u32 sa_id;

  u8 crypto_key_length;
  u8 crypto_key[128];

  u8 integrity_key_length;
  u8 integrity_key[128];
};

/** \brief Reply for IPsec: Update Security Association keys
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/

define ipsec_sa_set_key_reply
{
  u32 context;
  i32 retval;
};

/** \brief IKEv2: Add/delete profile
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request

    @param name - IKEv2 profile name
    @param is_add - Add IKEv2 profile if non-zero, else delete
*/
define ikev2_profile_add_del
{
  u32 client_index;
  u32 context;

  u8 name[64];
  u8 is_add;
};

/** \brief Reply for IKEv2: Add/delete profile
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define ikev2_profile_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief IKEv2: Set IKEv2 profile authentication method
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request

    @param name - IKEv2 profile name
    @param auth_method - IKEv2 authentication method (shared-key-mic/rsa-sig)
    @param is_hex - Authentication data in hex format if non-zero, else string
    @param data_len - Authentication data length
    @param data - Authentication data (for rsa-sig cert file path)
*/
define ikev2_profile_set_auth
{
  u32 client_index;
  u32 context;

  u8 name[64];
  u8 auth_method;
  u8 is_hex;
  u32 data_len;
  u8 data[0];
};

/** \brief Reply for IKEv2: Set IKEv2 profile authentication method
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define ikev2_profile_set_auth_reply
{
  u32 context;
  i32 retval;
};

/** \brief IKEv2: Set IKEv2 profile local/remote identification
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request

    @param name - IKEv2 profile name
    @param is_local - Identification is local if non-zero, else remote
    @param id_type - Identification type
    @param data_len - Identification data length
    @param data - Identification data
*/
define ikev2_profile_set_id
{
  u32 client_index;
  u32 context;

  u8 name[64];
  u8 is_local;
  u8 id_type;
  u32 data_len;
  u8 data[0];
};

/** \brief Reply for IKEv2:
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define ikev2_profile_set_id_reply
{
  u32 context;
  i32 retval;
};

/** \brief IKEv2: Set IKEv2 profile traffic selector parameters
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request

    @param name - IKEv2 profile name
    @param is_local - Traffic selector is local if non-zero, else remote
    @param proto - Traffic selector IP protocol (if zero not relevant)
    @param start_port - The smallest port number allowed by traffic selector
    @param end_port - The largest port number allowed by traffic selector
    @param start_addr - The smallest address included in traffic selector
    @param end_addr - The largest address included in traffic selector
*/
define ikev2_profile_set_ts
{
  u32 client_index;
  u32 context;

  u8 name[64];
  u8 is_local;
  u8 proto;
  u16 start_port;
  u16 end_port;
  u32 start_addr;
  u32 end_addr;
};

/** \brief Reply for IKEv2: Set IKEv2 profile traffic selector parameters
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define ikev2_profile_set_ts_reply
{
  u32 context;
  i32 retval;
};

/** \brief IKEv2: Set IKEv2 local RSA private key
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request

    @param key_file - Key file absolute path
*/
define ikev2_set_local_key
{
  u32 client_index;
  u32 context;

  u8 key_file[256];
};

/** \brief Reply for IKEv2: Set IKEv2 local key
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define ikev2_set_local_key_reply
{
  u32 context;
  i32 retval;
};

/** \brief Tell client about a DHCP completion event
    @param client_index - opaque cookie to identify the sender
    @param pid - client pid registered to receive notification
    @param is_ipv6 - if non-zero the address is ipv6, else ipv4
    @param host_address - Host IP address
    @param router_address - Router IP address
    @param host_mac - Host MAC address
*/
define dhcp_compl_event
{
  u32 client_index;
  u32 pid;
  u8 hostname[64];
  u8 is_ipv6;
  u8 host_address[16];
  u8 router_address[16];
  u8 host_mac[6];
};

/** \brief Add MAP domains
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param ip6_prefix - Rule IPv6 prefix
    @param ip4_prefix - Rule IPv4 prefix
    @param ip6_src - MAP domain IPv6 BR address / Tunnel source
    @param ip6_prefix_len - Rule IPv6 prefix length
    @param ip4_prefix_len - Rule IPv4 prefix length
    @param ea_bits_len - Embedded Address bits length
    @param psid_offset - Port Set Identifider (PSID) offset
    @param psid_length - PSID length
    @param is_translation - MAP-E / MAP-T
    @param mtu - MTU
*/
define map_add_domain
{
  u32 client_index;
  u32 context;
  u8 ip6_prefix[16];
  u8 ip4_prefix[4];
  u8 ip6_src[16];
  u8 ip6_prefix_len;
  u8 ip4_prefix_len;
  u8 ip6_src_prefix_len;
  u8 ea_bits_len;
  u8 psid_offset;
  u8 psid_length;
  u8 is_translation;
  u16 mtu;
};

/** \brief Reply for MAP domain add
    @param context - returned sender context, to match reply w/ request
    @param index - MAP domain index
    @param retval - return code
*/
define map_add_domain_reply
{
  u32 context;
  u32 index;
  i32 retval;
};

/** \brief Delete MAP domain
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param index - MAP Domain index
*/
define map_del_domain
{
  u32 client_index;
  u32 context;
  u32 index;
};

/** \brief Reply for MAP domain del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define map_del_domain_reply
{
  u32 context;
  i32 retval;
};

/** \brief Add or Delete MAP rule from a domain (Only used for shared IPv4 per subscriber)
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param index - MAP Domain index
    @param is_add - If 1 add rule, if 0 delete rule
    @param ip6_dst - MAP CE IPv6 address
    @param psid - Rule PSID
*/
define map_add_del_rule
{
  u32 client_index;
  u32 context;
  u32 index;
  u32 is_add;
  u8 ip6_dst[16];
  u16 psid;
};

/** \brief Reply for MAP rule add/del
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define map_add_del_rule_reply
{
  u32 context;
  i32 retval;
};

/** \brief Get list of map domains
    @param client_index - opaque cookie to identify the sender
*/
define map_domain_dump
{
  u32 client_index;
  u32 context;
};

define map_domain_details
{
  u32 context;
  u32 domain_index;
  u8 ip6_prefix[16];
  u8 ip4_prefix[4];
  u8 ip6_src[16];
  u8 ip6_prefix_len;
  u8 ip4_prefix_len;
  u8 ip6_src_len;
  u8 ea_bits_len;
  u8 psid_offset;
  u8 psid_length;
  u8 flags;
  u16 mtu;
  u8 is_translation;
};

define map_rule_dump
{
  u32 client_index;
  u32 context;
  u32 domain_index;
};

define map_rule_details
{
  u32 context;
  u8 ip6_dst[16];
  u16 psid;
};

/** \brief Request for a single block of summary stats
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define map_summary_stats
{
  u32 client_index;
  u32 context;
};

/** \brief Reply for map_summary_stats request
    @param context - sender context, to match reply w/ request
    @param retval - return code for request
    @param total_bindings -  
    @param total_pkts -  
    @param total_ip4_fragments -
    @param total_security_check - 
*/
define map_summary_stats_reply
{
  u32 context;
  i32 retval;
  u64 total_bindings;
  u64 total_pkts[2];
  u64 total_bytes[2];
  u64 total_ip4_fragments;
  u64 total_security_check[2];
};

/** \brief cop: enable/disable junk filtration features on an interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_inded - desired interface
    @param enable_disable - 1 => enable, 0 => disable
*/

define cop_interface_enable_disable
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u8 enable_disable;
};

/** \brief cop: interface enable/disable junk filtration reply
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/

define cop_interface_enable_disable_reply
{
  u32 context;
  i32 retval;
};

/** \brief cop: enable/disable whitelist filtration features on an interface
    Note: the supplied fib_id must match in order to remove the feature!
    
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface handle, physical interfaces only
    @param fib_id - fib identifier for the whitelist / blacklist fib
    @param ip4 - 1 => enable ip4 filtration, 0=> disable ip4 filtration
    @param ip6 - 1 => enable ip6 filtration, 0=> disable ip6 filtration
    @param default_cop -  1 => enable non-ip4, non-ip6 filtration 0=> disable it
*/

define cop_whitelist_enable_disable
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u32 fib_id;
  u8 ip4;
  u8 ip6;
  u8 default_cop;
};

/** \brief cop: interface enable/disable junk filtration reply
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/

define cop_whitelist_enable_disable_reply
{
  u32 context;
  i32 retval;
};

/** \brief get_node_graph - get a copy of the vpp node graph
    including the current set of graph arcs.

    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/

define get_node_graph
{
  u32 client_index;
  u32 context;
};

/** \brief get_node_graph_reply
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param reply_in_shmem - result from vlib_node_serialize, in shared
    memory. Process with vlib_node_unserialize, remember to switch
    heaps and free the result.
*/

define get_node_graph_reply
{
  u32 context;
  i32 retval;
  u64 reply_in_shmem;
};

/** \brief Clear interface statistics
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - index of the interface to clear statistics
*/
define sw_interface_clear_stats
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
};

/** \brief Reply to sw_interface_clear_stats 
    @param context - sender context which was passed in the request
    @param retval - return code of the set flags request
*/
define sw_interface_clear_stats_reply
{
  u32 context;
  i32 retval;
};

/** \brief IOAM Trace : Set TRACE profile
    @param id - profile id
    @param trace_type - Trace type
    @param trace_num_elt - Number of nodes in trace path
    @param trace_ppc - Trace PPC (none/encap/decap)
    @param trace_tsp - Trace timestamp precision (0-sec,1-ms,2-us,3-ns)
    @param trace_app_data - Trace application data, can be any 4 bytes
    @param pow_enable - Proof of Work enabled or not flag
    @param node_id - Id of this node
*/
define trace_profile_add
{
  u32 client_index;
  u32 context;
  u16 id;
  u8 trace_type;
  u8 trace_num_elt;
  u8 trace_ppc;
  u8 trace_tsp;
  u32 trace_app_data;
  u8 pow_enable;
  u32 node_id;
};

/** \brief Trace profile add / del response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define trace_profile_add_reply
{
  u32 context;
  i32 retval;
};

/** \brief IOAM Trace enable trace profile for a flow
    @param id - id of the trace profile to be applied
    @param dest_ipv6 - Destination IPv6 address
    @param prefix_length - prefix mask
    @param vrf_id - VRF ID
    @param trace_op - Trace operation (add/mod/del)
    @param enable - apply/remove the trace profile for the flow
*/
define trace_profile_apply
{
  u32 client_index;
  u32 context;
  u16 id;
  u8 dest_ipv6[16];
  u32 prefix_length;
  u32 vrf_id;
  u8 trace_op;
  u8 enable;
};

/** \brief Trace profile apply response
    @param context - sender context, to match reply w/ request   
    @param retval - return value for request
*/
define trace_profile_apply_reply
{
  u32 context;
  i32 retval;
};

/** \brief Delete Trace Profile 
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param index - MAP Domain index
*/
define trace_profile_del
{
  u32 client_index;
  u32 context;
  u16 id;
};

/** \brief Trace profile add / del response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define trace_profile_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Create host-interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param host_if_name - interface name
    @param hw_addr - interface MAC
    @param use_random_hw_addr - use random generated MAC
*/
define af_packet_create
{
  u32 client_index;
  u32 context;

  u8 host_if_name[64];
  u8 hw_addr[6];
  u8 use_random_hw_addr;
};

/** \brief Create host-interface response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define af_packet_create_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief Delete host-interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param host_if_name - interface name
*/
define af_packet_delete
{
  u32 client_index;
  u32 context;

  u8 host_if_name[64];
};

/** \brief Delete host-interface response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define af_packet_delete_reply
{
  u32 context;
  i32 retval;
};

/** \brief Add/del policer
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - add policer if non-zero, else delete
    @param name - policer name
    @param cir - CIR
    @param eir - EIR
    @param cb - Committed Burst
    @param eb - Excess or Peak Burst
    @param rate_type - rate type
    @param round_type - rounding type
    @param type - policer algorithm
    @param color_aware - 0=color-blind, 1=color-aware
    @param conform_action_type - conform action type
    @param conform_dscp - DSCP for conform mar-and-transmit action
    @param exceed_action_type - exceed action type
    @param exceed_dscp - DSCP for exceed mar-and-transmit action
    @param violate_action_type - violate action type
    @param violate_dscp - DSCP for violate mar-and-transmit action
*/
define policer_add_del
{
  u32 client_index;
  u32 context;

  u8 is_add;
  u8 name[64];
  u32 cir;
  u32 eir;
  u64 cb;
  u64 eb;
  u8 rate_type;
  u8 round_type;
  u8 type;
  u8 color_aware;
  u8 conform_action_type;
  u8 conform_dscp;
  u8 exceed_action_type;
  u8 exceed_dscp;
  u8 violate_action_type;
  u8 violate_dscp;
};

/** \brief Add/del policer response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
    @param policer_index - for add, returned index of the new policer
*/
define policer_add_del_reply
{
  u32 context;
  i32 retval;
  u32 policer_index;
};

/** \brief Get list of policers
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param match_name_valid - if 0 request all policers otherwise use match_name
    @param match_name - policer name
*/
define policer_dump
{
  u32 client_index;
  u32 context;

  u8 match_name_valid;
  u8 match_name[64];
};

/** \brief Policer operational state response.
    @param context - sender context, to match reply w/ request
    @param name - policer name
    @param cir - CIR
    @param eir - EIR
    @param cb - Committed Burst
    @param eb - Excess or Peak Burst
    @param rate_type - rate type
    @param round_type - rounding type
    @param type - policer algorithm
    @param conform_action_type - conform action type
    @param conform_dscp - DSCP for conform mar-and-transmit action
    @param exceed_action_type - exceed action type
    @param exceed_dscp - DSCP for exceed mar-and-transmit action
    @param violate_action_type - violate action type
    @param violate_dscp - DSCP for violate mar-and-transmit action
    @param single_rate - 1 = single rate policer, 0 = two rate policer
    @param color_aware - for hierarchical policing
    @param scale - power-of-2 shift amount for lower rates
    @param cir_tokens_per_period - number of tokens for each period
    @param pir_tokens_per_period - number of tokens for each period for 2-rate policer
    @param current_limit - current limit
    @param current_bucket - current bucket
    @param extended_limit - extended limit
    @param extended_bucket - extended bucket
    @param last_update_time - last update time
*/
define policer_details
{
  u32 context;

  u8 name[64];
  u32 cir;
  u32 eir;
  u64 cb;
  u64 eb;
  u8 rate_type;
  u8 round_type;
  u8 type;
  u8 conform_action_type;
  u8 conform_dscp;
  u8 exceed_action_type;
  u8 exceed_dscp;
  u8 violate_action_type;
  u8 violate_dscp;
  u8 single_rate;
  u8 color_aware;
  u32 scale;
  u32 cir_tokens_per_period;
  u32 pir_tokens_per_period;
  u32 current_limit;
  u32 current_bucket;
  u32 extended_limit;
  u32 extended_bucket;
  u64 last_update_time;
};

/** \brief Set/unset policer classify interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - interface to set/unset policer classify
    @param ip4_table_index - ip4 classify table index (~0 for skip)
    @param ip6_table_index - ip6 classify table index (~0 for skip)
    @param l2_table_index  -  l2 classify table index (~0 for skip)
    @param is_add - Set if non-zero, else unset
    Note: User is recommeneded to use just one valid table_index per call.
          (ip4_table_index, ip6_table_index, or l2_table_index)
*/
define policer_classify_set_interface
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
  u32 ip4_table_index;
  u32 ip6_table_index;
  u32 l2_table_index;
  u8 is_add;
};

/** \brief Set/unset policer classify interface response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define policer_classify_set_interface_reply
{
  u32 context;
  i32 retval;
};

/** \brief Get list of policer classify interfaces and tables
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param type - classify table type
*/
define policer_classify_dump
{
  u32 client_index;
  u32 context;
  u8 type;
};

/** \brief Policer iclassify operational state response.
    @param context - sender context, to match reply w/ request
    @param sw_if_index - software interface index
    @param table_index - classify table index
*/
define policer_classify_details
{
  u32 context;
  u32 sw_if_index;
  u32 table_index;
};

/** \brief Create netmap
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param netmap_if_name - interface name
    @param hw_addr - interface MAC
    @param use_random_hw_addr - use random generated MAC
    @param is_pipe - is pipe
    @param is_master - 0=slave, 1=master
*/
define netmap_create
{
  u32 client_index;
  u32 context;

  u8 netmap_if_name[64];
  u8 hw_addr[6];
  u8 use_random_hw_addr;
  u8 is_pipe;
  u8 is_master;
};

/** \brief Create netmap response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define netmap_create_reply
{
  u32 context;
  i32 retval;
};

/** \brief Delete netmap
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param netmap_if_name - interface name
*/
define netmap_delete
{
  u32 client_index;
  u32 context;

  u8 netmap_if_name[64];
};

/** \brief Delete netmap response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define netmap_delete_reply
{
  u32 context;
  i32 retval;
};

/** \brief Dump mpls gre tunnel table
    @param client_index - opaque cookie to identify the sender
    @param tunnel_index - gre tunnel identifier or -1 in case of all tunnels
*/
define mpls_gre_tunnel_dump
{
  u32 client_index;
  u32 context;
  i32 tunnel_index;
};

/** \brief mpls gre tunnel operational state response
    @param tunnel_index - gre tunnel identifier
    @param intfc_address - interface ipv4 addr
    @param mask_width - interface ipv4 addr mask
    @param hw_if_index - interface id
    @param l2_only -
    @param tunnel_src - tunnel source ipv4 addr
    @param tunnel_dst - tunnel destination ipv4 addr
    @param outer_fib_index - gre tunnel identifier
    @param encap_index - reference to mpls label table
    @param nlabels - number of resolved labels
    @param labels - resolved labels
*/
define mpls_gre_tunnel_details
{
  u32 context;
  u32 tunnel_index;

  u32 intfc_address;
  u32 inner_fib_index;
  u32 mask_width;
  u32 encap_index;
  u32 hw_if_index;
  u8 l2_only;
  u32 tunnel_src;
  u32 tunnel_dst;
  u32 outer_fib_index;
  u32 nlabels;
  u32 labels[nlabels];
};

/** \brief Dump mpls eth tunnel table
    @param client_index - opaque cookie to identify the sender
    @param tunnel_index - eth tunnel identifier or -1 in case of all tunnels
*/
define mpls_eth_tunnel_dump
{
  u32 client_index;
  u32 context;
  i32 tunnel_index;
};

/** \brief mpls eth tunnel operational state response
    @param tunnel_index - eth tunnel identifier
    @param intfc_address - interface ipv4 addr
    @param mask_width - interface ipv4 addr mask
    @param hw_if_index - interface id
    @param l2_only -
    @param tunnel_dst_mac -
    @param tx_sw_if_index -
    @param encap_index - reference to mpls label table
    @param nlabels - number of resolved labels
    @param labels - resolved labels
*/
define mpls_eth_tunnel_details
{
  u32 context;
  u32 tunnel_index;

  u32 intfc_address;
  u32 inner_fib_index;
  u32 mask_width;
  u32 encap_index;
  u32 hw_if_index;
  u8 l2_only;
  u8 tunnel_dst_mac[6];
  u32 tx_sw_if_index;
  u32 nlabels;
  u32 labels[nlabels];
};

/** \brief Dump mpls fib table
    @param client_index - opaque cookie to identify the sender
    @param fib_index    - mpls fib entry identifier or -1 in case of all entries
*/
define mpls_fib_encap_dump
{
  u32 client_index;
  u32 context;
};

/** \brief mpls fib encap table response
    @param fib_index - fib table id
    @param dest - destination ipv4 addr
    @param s_bit -
    @param entry_index - reference to mpls label table
    @param nlabels - number of resolved labels
    @param labels - resolved labels
*/
define mpls_fib_encap_details
{
  u32 context;

  u32 fib_index;
  u32 entry_index;
  u32 dest;
  u32 s_bit;
  u32 nlabels;
  u32 labels[nlabels];
};

/** \brief Dump mpls fib decap table
    @param client_index - opaque cookie to identify the sender
    @param fib_index    - mpls fib entry identifier or -1 in case of all entries
*/
define mpls_fib_decap_dump
{
  u32 client_index;
  u32 context;
};

/** \brief mpls fib decap table response
    @param fib_index - fib table id
    @param entry_index - reference to mpls label table
    @param dest - destination ipv4 addr
    @param s_bit -
    @param label - mpls labels
    @param rx_table_id - rx fib id
    @param tx_table_id - tx fib id
    @param swif_tag -
*/
define mpls_fib_decap_details
{
  u32 context;

  u32 fib_index;
  u32 entry_index;
  u32 dest;
  u32 s_bit;
  u32 label;
  u32 rx_table_id;
  u32 tx_table_id;
  u8 swif_tag[8];
};

/** \brief Classify get table IDs request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define classify_table_ids
{
  u32 client_index;
  u32 context;
};

/** \brief Reply for classify get table IDs request
    @param context - sender context which was passed in the request
    @param count - number of ids returned in response
    @param ids - array of classify table ids
*/
define classify_table_ids_reply
{
  u32 context;
  i32 retval;
  u32 count;
  u32 ids[count];
};

/** \brief Classify table ids by interface index request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - index of the interface
*/
define classify_table_by_interface
{
  u32 client_index;
  u32 context;
  u32 sw_if_index;
};

/** \brief Reply for classify table id by interface index request
    @param context - sender context which was passed in the request
    @param count - number of ids returned in response
    @param sw_if_index - index of the interface
    @param l2_table_id - l2 classify table index
    @param ip4_table_id - ip4 classify table index
    @param ip6_table_id - ip6 classify table index
*/
define classify_table_by_interface_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
  u32 l2_table_id;
  u32 ip4_table_id;
  u32 ip6_table_id;
};

/** \brief Classify table info
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param table_id - classify table index
*/
define classify_table_info
{
  u32 client_index;
  u32 context;
  u32 table_id;
};

/** \brief Reply for classify table info request
    @param context - sender context which was passed in the request
    @param count - number of ids returned in response
    @param table_id - classify table index
    @param nbuckets - number of buckets when adding a table
    @param match_n_vectors - number of match vectors
    @param skip_n_vectors - number of skip_n_vectors
    @param active_sessions - number of sessions (active entries)
    @param next_table_index - index of next table
    @param miss_next_index - index of miss table
    @param mask[] - match mask
*/
define classify_table_info_reply
{
  u32 context;
  i32 retval;
  u32 table_id;
  u32 nbuckets;
  u32 match_n_vectors;
  u32 skip_n_vectors;
  u32 active_sessions;
  u32 next_table_index;
  u32 miss_next_index;
  u32 mask_length;
  u8 mask[mask_length];
};

/** \brief Classify sessions dump request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param table_id - classify table index
*/
define classify_session_dump
{
  u32 client_index;
  u32 context;
  u32 table_id;
};

/** \brief Reply for classify table session dump request
    @param context - sender context which was passed in the request
    @param count - number of ids returned in response
    @param table_id - classify table index
    @param hit_next_index - hit_next_index of session
    @param opaque_index - for add, opaque_index of session
    @param advance - advance value of session
    @param match[] - match value for session
*/
define classify_session_details
{
  u32 context;
  i32 retval;
  u32 table_id;
  u32 hit_next_index;
  i32 advance;
  u32 opaque_index;
  u32 match_length;
  u8 match[match_length];
};

/** \brief Enable and configure IPFIX exporter process request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param collector_address - address of IPFIX collector
    @param collector_port - port of IPFIX IPFIX collector
    @param src_address - address of IPFIX exporter
    @param vrf_id - VRF / fib table ID
    @param path_mtu - Path MTU between exporter and collector
    @param template_interval - number of seconds after which to resend template
*/
define ipfix_enable
{
  u32 client_index;
  u32 context;
  u8 collector_address[16];
  u16 collector_port;
  u8 src_address[16];
  u32 vrf_id;
  u32 path_mtu;
  u32 template_interval;
};

/** \brief Reply to IPFIX enable and configure request
    @param context - sender context which was passed in the request
*/
define ipfix_enable_reply
{
  u32 context;
  i32 retval;
};

/** \brief IPFIX dump request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define ipfix_dump
{
  u32 client_index;
  u32 context;
};

/** \brief Reply to IPFIX dump request
    @param context - sender context which was passed in the request
    @param collector_address - address of IPFIX collector
    @param collector_port - port of IPFIX IPFIX collector
    @param src_address - address of IPFIX exporter
    @param fib_index - fib table index
    @param path_mtu - Path MTU between exporter and collector
    @param template_interval - number of seconds after which to resend template
*/
define ipfix_details
{
  u32 context;
  u8 collector_address[16];
  u16 collector_port;
  u8 src_address[16];
  u32 fib_index;
  u32 path_mtu;
  u32 template_interval;
};

/** \brief Query relative index via node names
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param node_name - name of node to find relative index from
    @param next_name - next node from node_name to find relative index of
*/
define get_next_index
{
  u32 client_index;
  u32 context;
  u8 node_name[64];
  u8 next_name[64];
};

/** \brief Reply for get next node index
    @param context - sender context which was passed in the request
    @param retval - return value
    @param next_index - index of the next_node
*/
define get_next_index_reply
{
  u32 context;
  i32 retval;
  u32 next_index;
};

/** \brief PacketGenerator create interface request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param interface_id - interface index
*/
define pg_create_interface
{
  u32 client_index;
  u32 context;
  u32 interface_id;
};

/** \brief PacketGenerator create interface response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define pg_create_interface_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief PacketGenerator capture packets on given interface request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param interface_id - pg interface index
    @param is_enabled - 1 if enabling streams, 0 if disabling
    @param count - number of packets to be captured
    @param pcap_file - pacp file name to store captured packets
*/
define pg_capture
{
  u32 client_index;
  u32 context;
  u32 interface_id;
  u8 is_enabled;
  u32 count;
  u32 pcap_name_length;
  u8 pcap_file_name[pcap_name_length];
};

/** \brief PacketGenerator capture packets response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define pg_capture_reply
{
  u32 context;
  i32 retval;
};

/** \brief Enable / disable packet generator request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_enabled - 1 if enabling streams, 0 if disabling
    @param stream - stream name to be enable/disabled, if not specified handle all streams
*/
define pg_enable_disable
{
  u32 client_index;
  u32 context;
  u8 is_enabled;
  u32 stream_name_length;
  u8 stream_name[stream_name_length];
};

/** \brief Reply for enable / disable packet generator
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define pg_enable_disable_reply
{
  u32 context;
  i32 retval;
};

/** \brief Configure IP source and L4 port-range check
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_ip6 - 1 if source address type is IPv6
    @param is_add - 1 if add, 0 if delete
    @param mask_length - mask length for address entry
    @param address - array of address bytes
    @param number_of_ranges - length of low_port and high_port arrays (must match)
    @param low_ports[32] - up to 32 low end of port range entries (must have corresponding high_ports entry)
    @param high_ports[32] - up to 32 high end of port range entries (must have corresponding low_ports entry)
    @param vrf_id - fib table/vrf id to associate the source and port-range check with
    @note To specify a single port set low_port and high_port entry the same
*/
define ip_source_and_port_range_check_add_del
{
  u32 client_index;
  u32 context;
  u8 is_ipv6;
  u8 is_add;
  u8 mask_length;
  u8 address[16];
  u8 number_of_ranges;
  u16 low_ports[32];
  u16 high_ports[32];
  u32 vrf_id;
};

/** \brief Configure IP source and L4 port-range check reply
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
*/
define ip_source_and_port_range_check_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Set interface source and L4 port-range request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param interface_id - interface index
    @param tcp_vrf_id - VRF associated with source and TCP port-range check
    @param udp_vrf_id - VRF associated with source and TCP port-range check
*/
define ip_source_and_port_range_check_interface_add_del
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u32 sw_if_index;
  u32 tcp_in_vrf_id;
  u32 tcp_out_vrf_id;
  u32 udp_in_vrf_id;
  u32 udp_out_vrf_id;
};

/** \brief Set interface source and L4 port-range response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
*/
define ip_source_and_port_range_check_interface_add_del_reply
{
  u32 context;
  i32 retval;
};

/** \brief Add / del ipsec gre tunnel request
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param local_sa_id - local SA id
    @param remote_sa_id - remote SA id
    @param is_add - 1 if adding the tunnel, 0 if deleting
    @param src_address - tunnel source address
    @param dst_address - tunnel destination address
*/
define ipsec_gre_add_del_tunnel {
    u32 client_index;
    u32 context;
    u32 local_sa_id;
    u32 remote_sa_id;
    u8 is_add;
    u8 src_address[4];
    u8 dst_address[4];
};

/** \brief Reply for add / del ipsec gre tunnel request
    @param context - returned sender context, to match reply w/ request
    @param retval - return code
    @param sw_if_index - software index of the new ipsec gre tunnel
*/
define ipsec_gre_add_del_tunnel_reply {
    u32 context;
    i32 retval;
    u32 sw_if_index;
};

/** \brief Dump ipsec gre tunnel table
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param tunnel_index - gre tunnel identifier or -1 in case of all tunnels
*/
define ipsec_gre_tunnel_dump {
    u32 client_index;
    u32 context;
    u32 sw_if_index;
};

/** \brief mpls gre tunnel operational state response
    @param context - returned sender context, to match reply w/ request
    @param sw_if_index - software index of the ipsec gre tunnel
    @param local_sa_id - local SA id
    @param remote_sa_id - remote SA id
    @param src_address - tunnel source address
    @param dst_address - tunnel destination address
*/
define ipsec_gre_tunnel_details {
    u32 context;
    u32 sw_if_index;
    u32 local_sa_id;
    u32 remote_sa_id;
    u8 src_address[4];
    u8 dst_address[4];
};