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| author | Marcin Wojtas <mw@FreeBSD.org> | 2020-10-16 11:27:01 +0000 |
|---|---|---|
| committer | Marcin Wojtas <mw@FreeBSD.org> | 2020-10-16 11:27:01 +0000 |
| commit | ac152c14e01dff90318c32a7e6919396d8465e84 (patch) | |
| tree | a77e60d8c894765475d54658c77209b5ffddb6f9 | |
| parent | 4d36d1fd5972d46b8f356a751538f2fff118cd28 (diff) | |
| download | src-ac152c14e01dff90318c32a7e6919396d8465e84.tar.gz src-ac152c14e01dff90318c32a7e6919396d8465e84.zip | |
Trigger soft lifetime expiration on sequence number
This patch adds 80% of UINT32_MAX limit on sequence number.
When sequence number reaches limit kernel sends SADB_EXPIRE message to
IKE daemon which is responsible to perform rekeying.
Submitted by: Patryk Duda <pdk@semihalf.com>
Reviewed by: ae
Differential revision: https://reviews.freebsd.org/D22370
Obtained from: Semihalf
Sponsored by: Stormshield
Notes
Notes:
svn path=/head/; revision=366759
| -rw-r--r-- | sys/netipsec/key.c | 7 |
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); |