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78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
/*
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* BIRD -- Bidirectional Forwarding Detection (BFD)
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_NBFD_H_
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#define _BIRD_NBFD_H_
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#include "lib/lists.h"
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#include "lib/resource.h"
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#include "conf/conf.h"
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struct bfd_session;
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struct bfd_options {
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u32 min_rx_int;
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u32 min_tx_int;
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u32 idle_tx_int;
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u8 multiplier;
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u8 passive;
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u8 passive_set;
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u8 mode;
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};
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struct bfd_request {
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resource r;
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node n;
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ip_addr addr;
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ip_addr local;
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struct iface *iface;
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struct iface *vrf;
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struct bfd_options opts;
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void (*hook)(struct bfd_request *);
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void *data;
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struct birdloop *target;
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struct bfd_session *session;
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u8 state;
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u8 diag;
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u8 old_state;
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u8 down;
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};
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#define BGP_BFD_GRACEFUL 2 /* BFD down triggers graceful restart */
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#define BFD_STATE_ADMIN_DOWN 0
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#define BFD_STATE_DOWN 1
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#define BFD_STATE_INIT 2
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#define BFD_STATE_UP 3
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static inline struct bfd_options * bfd_new_options(void)
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{ return cfg_allocz(sizeof(struct bfd_options)); }
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#ifdef CONFIG_BFD
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struct bfd_request * bfd_request_session(pool *p, ip_addr addr, ip_addr local, struct iface *iface, struct iface *vrf, void (*hook)(struct bfd_request *), void *data, struct birdloop *target, const struct bfd_options *opts);
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void bfd_update_request(struct bfd_request *req, const struct bfd_options *opts);
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static inline void cf_check_bfd(int use UNUSED) { }
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#else
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static inline struct bfd_request * bfd_request_session(pool *p UNUSED, ip_addr addr UNUSED, ip_addr local UNUSED, struct iface *iface UNUSED, struct iface *vrf UNUSED, void (*hook)(struct bfd_request *) UNUSED, void *data UNUSED, struct birdloop *target UNUSED, const struct bfd_options *opts UNUSED) { return NULL; }
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static inline void bfd_update_request(struct bfd_request *req UNUSED, const struct bfd_options *opts UNUSED) { };
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static inline void cf_check_bfd(int use) { if (use) cf_error("BFD not available"); }
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#endif /* CONFIG_BFD */
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#endif /* _BIRD_NBFD_H_ */
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