/* * Server side of OSPF API. * Copyright (C) 2001, 2002 Ralph Keller * * This file is part of GNU Zebra. * * GNU Zebra is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * GNU Zebra 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; see the file COPYING; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef _OSPF_APISERVER_H #define _OSPF_APISERVER_H #include #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 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 thread *t_sync_read; #ifdef USE_ASYNC_READ struct thread *t_async_read; #endif /* USE_ASYNC_READ */ struct thread *t_sync_write; struct thread *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 }; /* ----------------------------------------------------------- * 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 thread *thread); extern void ospf_apiserver_read(struct thread *thread); extern void ospf_apiserver_sync_write(struct thread *thread); extern void ospf_apiserver_async_write(struct thread *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 */