/*
 * Copyright (c) 2015-2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/** \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 del_chain - if non-zero delete the whole chain of tables
    @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 current_data_flag - option to use current node's packet payload
            as the starting point from where packets are classified,
            This option is only valid for L2/L3 input ACL for now.
            0: by default, classify data from the buffer's start location
            1: classify packets from VPP node’s current data pointer
    @param current_data_offset - a signed value to shift the start location of
            the packet to be classified
            For example, if input IP ACL node is used, L2 header’s first byte
            can be accessible by configuring current_data_offset to -14
            if there is no vlan tag.
            This is valid only if current_data_flag is set to 1.
    @param mask[] - match mask
*/
define classify_add_del_table
{
  u32 client_index;
  u32 context;
  u8 is_add;
  u8 del_chain;
  u32 table_index;
  u32 nbuckets;
  u32 memory_size;
  u32 skip_n_vectors;
  u32 match_n_vectors;
  u32 next_table_index;
  u32 miss_next_index;
  u32 current_data_flag;
  i32 current_data_offset;
  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 action -
           0: no action (by default)
              metadata is not used.
           1: Classified IP packets will be looked up from the
              specified ipv4 fib table (configured by metadata as VRF id).
              Only valid for L3 input ACL node
           2: Classified IP packets will be looked up from the
              specified ipv6 fib table (configured by metadata as VRF id).
              Only valid for L3 input ACL node
    @param metadata - valid only if action != 0
           VRF id if action is 1 or 2.
    @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 action;
  u32 metadata;
  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 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 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 Set/unset flow 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 flow 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 flow_classify_set_interface {
    u32 client_index;
    u32 context;
    u32 sw_if_index;
    u32 ip4_table_index;
    u32 ip6_table_index;
    u8  is_add;
};

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

/** \brief Get list of flow 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 flow_classify_dump {
    u32 client_index;
    u32 context;
    u8 type;
};

/** \brief Flow classify 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 flow_classify_details {
    u32 context;
    u32 sw_if_index;
    u32 table_index;
};

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