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/* Hey Emacs use -*- mode: C -*- */
/*
 * Copyright 2020 Rubicon Communications, LLC.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

option version = "1.0.0";


enum node_flag : u32
{
  NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH	= 0x0001,
  NODE_FLAG_IS_OUTPUT				= 0x0002,
  NODE_FLAG_IS_DROP				= 0x0004,
  NODE_FLAG_IS_PUNT				= 0x0008,
  NODE_FLAG_IS_HANDOFF				= 0x0010,
  NODE_FLAG_TRACE				= 0x0020,
  NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE=0x0040,
  NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE=0x0080,
  NODE_FLAG_TRACE_SUPPORTED			= 0x0100,
};


service {
  rpc graph_node_get returns graph_node_get_reply
    stream graph_node_details;
};

/** \brief graph_node_get - Get nodes of the packet processing graph
    In order:
    if index != ~0, dump node with given index
    if index == ~0 and name[0] != 0, dump named node
    if index == ~0 and name[0] == 0 and flag != 0, dump flagged nodes
    otherwise when no selection criteria given, dump all nodes.
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param cursor - Starting iterator value, ~0 for initial request
    @param index - index of a specific node, or ~0 for all
    @param name - name of a specific node, or 0 for all
    @param flags - NODE_FLAG_* values
    @param flags - If true, dump details will contain next nodes out-arcs
*/
define graph_node_get
{
  u32 client_index;
  u32 context;
  u32 cursor;
  u32 index;
  string name[64];			/* GRAPH_NODE_LEN */
  vl_api_node_flag_t flags;		/* NODE_FLAG_* bits */
  bool want_arcs;			/* Include node out-arcs? */
  option vat_help = "graph_node_dump [start <cursor>] [node_index <index>]|[node_name <name>]|[flags]";
};

define graph_node_get_reply
{
  u32 context;
  i32 retval;
  u32 cursor;
};

/** \brief Details for each graph node
    @param index - index of the node
    @param name - name of the node
    @param flags - NODE_FLAG_* values
    @param n_arcs - If requested, the number of out-arcs to other nodes
    @param arcs - If requested, the set of out-arc next-node-indices
*/
define graph_node_details
{
  u32 context;
  u32 index;
  string name[64];			/* GRAPH_NODE_LEN */
  vl_api_node_flag_t flags;
  u32 n_arcs;
  u32 arcs_out[n_arcs];
};


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