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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Server side of OSPF API.
* Copyright (C) 2001, 2002 Ralph Keller
*/
#ifndef _OSPF_APISERVER_H
#define _OSPF_APISERVER_H
#include <zebra.h>
#include "ospf_api.h"
#include "ospf_lsdb.h"
/* List of opaque types that application registered */
struct registered_opaque_type {
uint8_t lsa_type;
uint8_t opaque_type;
};
/* Server instance for each accepted client connection. */
struct ospf_apiserver {
/* Socket connections for synchronous commands and asynchronous
notifications */
int fd_sync; /* synchronous requests */
struct sockaddr_in peer_sync;
int fd_async; /* asynchronous notifications */
struct sockaddr_in peer_async;
/* List of all opaque types that application registers to use. Using
a single connection with the OSPF daemon, multiple
<lsa,opaque_type> pairs can be registered. However, each
combination can only be registered once by all applications. */
struct list *opaque_types; /* of type registered_opaque_type */
/* Temporary storage for LSA instances to be refreshed. */
struct ospf_lsdb reserve;
/* Sync reachable routers */
bool reachable_sync;
/* filter for LSA update/delete notifies */
struct lsa_filter_type *filter;
/* Fifo buffers for outgoing messages */
struct msg_fifo *out_sync_fifo;
struct msg_fifo *out_async_fifo;
/* Read and write threads */
struct event *t_sync_read;
#ifdef USE_ASYNC_READ
struct event *t_async_read;
#endif /* USE_ASYNC_READ */
struct event *t_sync_write;
struct event *t_async_write;
};
enum ospf_apiserver_event {
OSPF_APISERVER_ACCEPT,
OSPF_APISERVER_SYNC_READ,
#ifdef USE_ASYNC_READ
OSPF_APISERVER_ASYNC_READ,
#endif /* USE_ASYNC_READ */
OSPF_APISERVER_SYNC_WRITE,
OSPF_APISERVER_ASYNC_WRITE
};
/* -----------------------------------------------------------
* External definitions for OSPF API ospfd parameters.
* -----------------------------------------------------------
*/
extern int ospf_apiserver_enable;
extern struct in_addr ospf_apiserver_addr;
/* -----------------------------------------------------------
* Following are functions to manage client connections.
* -----------------------------------------------------------
*/
extern unsigned short ospf_apiserver_getport(void);
extern int ospf_apiserver_init(void);
extern void ospf_apiserver_term(void);
extern struct ospf_apiserver *ospf_apiserver_new(int fd_sync, int fd_async);
extern void ospf_apiserver_free(struct ospf_apiserver *apiserv);
extern void ospf_apiserver_event(enum ospf_apiserver_event event, int fd,
struct ospf_apiserver *apiserv);
extern int ospf_apiserver_serv_sock_family(unsigned short port, int family);
extern void ospf_apiserver_accept(struct event *thread);
extern void ospf_apiserver_read(struct event *thread);
extern void ospf_apiserver_sync_write(struct event *thread);
extern void ospf_apiserver_async_write(struct event *thread);
extern int ospf_apiserver_send_reply(struct ospf_apiserver *apiserv,
uint32_t seqnr, uint8_t rc);
/* -----------------------------------------------------------
* Following are message handler functions
* -----------------------------------------------------------
*/
extern int ospf_apiserver_lsa9_originator(void *arg);
extern int ospf_apiserver_lsa10_originator(void *arg);
extern int ospf_apiserver_lsa11_originator(void *arg);
extern void ospf_apiserver_clients_notify_all(struct msg *msg);
extern void
ospf_apiserver_clients_notify_ready_type9(struct ospf_interface *oi);
extern void ospf_apiserver_clients_notify_ready_type10(struct ospf_area *area);
extern void ospf_apiserver_clients_notify_ready_type11(struct ospf *top);
extern void ospf_apiserver_clients_notify_new_if(struct ospf_interface *oi);
extern void ospf_apiserver_clients_notify_del_if(struct ospf_interface *oi);
extern void ospf_apiserver_clients_notify_ism_change(struct ospf_interface *oi);
extern void ospf_apiserver_clients_notify_nsm_change(struct ospf_neighbor *nbr);
extern void
ospf_apiserver_clients_notify_router_id_change(struct in_addr router_id);
extern int ospf_apiserver_is_ready_type9(struct ospf_interface *oi);
extern int ospf_apiserver_is_ready_type10(struct ospf_area *area);
extern int ospf_apiserver_is_ready_type11(struct ospf *ospf);
extern void ospf_apiserver_notify_ready_type9(struct ospf_apiserver *apiserv);
extern void ospf_apiserver_notify_ready_type10(struct ospf_apiserver *apiserv);
extern void ospf_apiserver_notify_ready_type11(struct ospf_apiserver *apiserv);
extern int ospf_apiserver_handle_msg(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int
ospf_apiserver_handle_register_opaque_type(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int
ospf_apiserver_handle_unregister_opaque_type(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int ospf_apiserver_handle_register_event(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int
ospf_apiserver_handle_originate_request(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int ospf_apiserver_handle_delete_request(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int ospf_apiserver_handle_sync_lsdb(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int ospf_apiserver_handle_sync_reachable(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int ospf_apiserver_handle_sync_ism(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int ospf_apiserver_handle_sync_nsm(struct ospf_apiserver *apiserv,
struct msg *msg);
extern int ospf_apiserver_handle_sync_router_id(struct ospf_apiserver *apiserv,
struct msg *msg);
extern void ospf_apiserver_notify_reachable(struct route_table *ort,
struct route_table *nrt);
/* -----------------------------------------------------------
* Following are functions for LSA origination/deletion
* -----------------------------------------------------------
*/
extern int ospf_apiserver_register_opaque_type(struct ospf_apiserver *apiserver,
uint8_t lsa_type,
uint8_t opaque_type);
extern int
ospf_apiserver_unregister_opaque_type(struct ospf_apiserver *apiserver,
uint8_t lsa_type, uint8_t opaque_type);
extern struct ospf_lsa *
ospf_apiserver_opaque_lsa_new(struct ospf_area *area, struct ospf_interface *oi,
struct lsa_header *protolsa);
extern struct ospf_interface *
ospf_apiserver_if_lookup_by_addr(struct in_addr address);
extern struct ospf_interface *
ospf_apiserver_if_lookup_by_ifp(struct interface *ifp);
extern int ospf_apiserver_originate1(struct ospf_lsa *lsa,
struct ospf_lsa *old);
extern void ospf_apiserver_flood_opaque_lsa(struct ospf_lsa *lsa);
/* -----------------------------------------------------------
* Following are callback functions to handle opaque types
* -----------------------------------------------------------
*/
extern int ospf_apiserver_new_if(struct interface *ifp);
extern int ospf_apiserver_del_if(struct interface *ifp);
extern void ospf_apiserver_ism_change(struct ospf_interface *oi,
int old_status);
extern void ospf_apiserver_nsm_change(struct ospf_neighbor *nbr,
int old_status);
extern void ospf_apiserver_config_write_router(struct vty *vty);
extern void ospf_apiserver_config_write_if(struct vty *vty,
struct interface *ifp);
extern void ospf_apiserver_show_info(struct vty *vty, struct json_object *json,
struct ospf_lsa *lsa);
extern int ospf_ospf_apiserver_lsa_originator(void *arg);
extern struct ospf_lsa *ospf_apiserver_lsa_refresher(struct ospf_lsa *lsa);
extern void ospf_apiserver_flush_opaque_lsa(struct ospf_apiserver *apiserv,
uint8_t lsa_type,
uint8_t opaque_type);
/* -----------------------------------------------------------
* Following are hooks when LSAs are updated or deleted
* -----------------------------------------------------------
*/
/* Hooks that are invoked from ospf opaque module */
extern int ospf_apiserver_lsa_update(struct ospf_lsa *lsa);
extern int ospf_apiserver_lsa_delete(struct ospf_lsa *lsa);
#endif /* _OSPF_APISERVER_H */
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