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-rw-r--r--sys/netipsec/key.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/netipsec/key.c b/sys/netipsec/key.c
index cd99f3d251d8..86dc9ea41024 100644
--- a/sys/netipsec/key.c
+++ b/sys/netipsec/key.c
@@ -101,6 +101,7 @@
#define FULLMASK 0xff
#define _BITS(bytes) ((bytes) << 3)
+#define UINT32_80PCT 0xcccccccc
/*
* Note on SA reference counting:
* - SAs that are not in DEAD state will have (total external reference + 1)
@@ -4536,7 +4537,11 @@ key_flush_sad(time_t now)
(sav->lft_s->usetime != 0 && sav->firstused &&
now - sav->firstused > sav->lft_s->usetime) ||
(sav->lft_s->bytes != 0 && counter_u64_fetch(
- sav->lft_c_bytes) > sav->lft_s->bytes))) {
+ sav->lft_c_bytes) > sav->lft_s->bytes) ||
+ (!(sav->flags & SADB_X_SAFLAGS_ESN) &&
+ (sav->replay != NULL) && (
+ (sav->replay->count > UINT32_80PCT) ||
+ (sav->replay->last > UINT32_80PCT))))) {
SECASVAR_UNLOCK(sav);
SAV_ADDREF(sav);
LIST_INSERT_HEAD(&sexpireq, sav, drainq);