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BGP: Long-lived graceful restart

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The patch implements long-lived graceful restart for BGP, namely
draft-uttaro-idr-bgp-persistence-03.
This commit is contained in:
Ondrej Zajicek (work)
2018-07-31 18:40:38 +02:00
parent 318acb0f6c
commit 5bd734317c
10 changed files with 432 additions and 28 deletions
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3
nest/route.h
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@@ -231,6 +231,7 @@ typedef struct rte {
#ifdef CONFIG_BGP
struct {
u8 suppressed; /* Used for deterministic MED comparison */
s8 stale; /* Route is LLGR_STALE, -1 if unknown */
} bgp;
#endif
#ifdef CONFIG_BABEL
@@ -254,6 +255,7 @@ typedef struct rte {
#define REF_FILTERED 2 /* Route is rejected by import filter */
#define REF_STALE 4 /* Route is stale in a refresh cycle */
#define REF_DISCARD 8 /* Route is scheduled for discard */
#define REF_MODIFY 16 /* Route is scheduled for modify */
/* Route is valid for propagation (may depend on other flags in the future), accepts NULL */
static inline int rte_is_valid(rte *r) { return r && !(r->flags & REF_FILTERED); }
@@ -297,6 +299,7 @@ int rt_examine(rtable *t, net_addr *a, struct proto *p, struct filter *filter);
rte *rt_export_merged(struct channel *c, net *net, rte **rt_free, linpool *pool, int silent);
void rt_refresh_begin(rtable *t, struct channel *c);
void rt_refresh_end(rtable *t, struct channel *c);
void rt_modify_stale(rtable *t, struct channel *c);
void rt_schedule_prune(rtable *t);
void rte_dump(rte *);
void rte_free(rte *);