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/*
* BIRD -- Bidirectional Forwarding Detection (BFD)
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_NBFD_H_
#define _BIRD_NBFD_H_
#include "lib/lists.h"
#include "lib/resource.h"
struct bfd_session;
struct bfd_request {
resource r;
node n;
ip_addr addr;
ip_addr local;
struct iface *iface;
void (*hook)(struct bfd_request *);
void *data;
struct bfd_session *session;
u8 state;
u8 diag;
u8 old_state;
u8 down;
};
#define BFD_STATE_ADMIN_DOWN 0
#define BFD_STATE_DOWN 1
#define BFD_STATE_INIT 2
#define BFD_STATE_UP 3
#ifdef CONFIG_BFD
struct bfd_request * bfd_request_session(pool *p, ip_addr addr, ip_addr local, struct iface *iface, void (*hook)(struct bfd_request *), void *data);
static inline void cf_check_bfd(int use UNUSED) { }
#else
static inline struct bfd_request * bfd_request_session(pool *p, ip_addr addr, ip_addr local, struct iface *iface, void (*hook)(struct bfd_request *), void *data) { return NULL; }
static inline void cf_check_bfd(int use) { if (use) cf_error("BFD not available"); }
#endif /* CONFIG_BFD */
#endif /* _BIRD_NBFD_H_ */
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