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/*
* This file is part of the PCEPlib, a PCEP protocol library.
*
* Copyright (C) 2020 Volta Networks https://voltanet.io/
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* Author : Brady Johnson <brady@voltanet.io>
*
*/
/*
* Public PCEPlib PCC API
*/
#ifndef PCEPPCC_INCLUDE_PCEPPCCAPI_H_
#define PCEPPCC_INCLUDE_PCEPPCCAPI_H_
#include <stdbool.h>
#include "pcep_session_logic.h"
#include "pcep_timers.h"
#define DEFAULT_PCEP_TCP_PORT 4189
#define DEFAULT_CONFIG_KEEP_ALIVE 30
#define DEFAULT_CONFIG_DEAD_TIMER DEFAULT_CONFIG_KEEP_ALIVE * 4
#define DEFAULT_CONFIG_REQUEST_TIME 30
#define DEFAULT_CONFIG_MAX_UNKNOWN_REQUESTS 5
#define DEFAULT_CONFIG_MAX_UNKNOWN_MESSAGES 5
#define DEFAULT_TCP_CONNECT_TIMEOUT_MILLIS 250
/* Acceptable MIN and MAX values used in deciding if the PCEP
* Open received from a PCE should be accepted or rejected. */
#define DEFAULT_MIN_CONFIG_KEEP_ALIVE 5
#define DEFAULT_MAX_CONFIG_KEEP_ALIVE 120
#define DEFAULT_MIN_CONFIG_DEAD_TIMER DEFAULT_MIN_CONFIG_KEEP_ALIVE * 4
#define DEFAULT_MAX_CONFIG_DEAD_TIMER DEFAULT_MAX_CONFIG_KEEP_ALIVE * 4
/*
* PCEP PCC library initialization/teardown functions
*/
/* Later when this is integrated with FRR pathd, it will be changed
* to just initialize_pcc(struct pceplib_infra_config *infra_config) */
bool initialize_pcc(void);
bool initialize_pcc_infra(struct pceplib_infra_config *infra_config);
/* this function is blocking */
bool initialize_pcc_wait_for_completion(void);
bool destroy_pcc(void);
/*
* PCEP session functions
*/
pcep_configuration *create_default_pcep_configuration(void);
void destroy_pcep_configuration(pcep_configuration *config);
/* Uses the standard PCEP TCP src and dest port = 4189.
* To use a specific dest or src port, set them other than 0 in the
* pcep_configuration. If src_ip is not set, INADDR_ANY will be used. */
pcep_session *connect_pce(pcep_configuration *config, struct in_addr *pce_ip);
pcep_session *connect_pce_ipv6(pcep_configuration *config,
struct in6_addr *pce_ip);
void disconnect_pce(pcep_session *session);
void send_message(pcep_session *session, struct pcep_message *msg,
bool free_after_send);
void dump_pcep_session_counters(pcep_session *session);
void reset_pcep_session_counters(pcep_session *session);
/*
* Event Queue functions
*/
/* Returns true if the queue is empty, false otherwise */
bool event_queue_is_empty(void);
/* Return the number of events on the queue, 0 if empty */
uint32_t event_queue_num_events_available(void);
/* Return the next event on the queue, NULL if empty */
struct pcep_event *event_queue_get_event(void);
/* Free the PCEP Event resources, including the PCEP message */
void destroy_pcep_event(struct pcep_event *event);
const char *get_event_type_str(int event_type);
#endif /* PCEPPCC_INCLUDE_PCEPPCCAPI_H_ */
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