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authorHerbert Xu <herbert@gondor.apana.org.au>2005-06-18 22:43:43 -0700
committerDavid S. Miller <davem@davemloft.net>2005-06-18 22:43:43 -0700
commit4f09f0bbc1cb3c74e8f2047ad4be201a059829ee (patch)
treed5ceba89f401b073cea383fa245c2b6299b7d07e /net/key
parent4666faab095230ec8aa62da6c33391287f281154 (diff)
downloadlinux-4f09f0bbc1cb3c74e8f2047ad4be201a059829ee.tar.gz
[IPSEC] Fix xfrm to pfkey SA state conversion
This patch adjusts the SA state conversion in af_key such that
XFRM_STATE_ERROR/XFRM_STATE_DEAD will be converted to SADB_STATE_DEAD
instead of SADB_STATE_DYING.

According to RFC 2367, SADB_STATE_DYING SAs can be turned into
mature ones through updating their lifetime settings.  Since SAs
which are in the states XFRM_STATE_ERROR/XFRM_STATE_DEAD cannot
be resurrected, this value is unsuitable.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'net/key')
-rw-r--r--net/key/af_key.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c
index d086c117f5f0..560c93c10890 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -656,13 +656,18 @@ static struct sk_buff * pfkey_xfrm_state2msg(struct xfrm_state *x, int add_keys,
 	sa->sadb_sa_exttype = SADB_EXT_SA;
 	sa->sadb_sa_spi = x->id.spi;
 	sa->sadb_sa_replay = x->props.replay_window;
-	sa->sadb_sa_state = SADB_SASTATE_DYING;
-	if (x->km.state == XFRM_STATE_VALID && !x->km.dying)
-		sa->sadb_sa_state = SADB_SASTATE_MATURE;
-	else if (x->km.state == XFRM_STATE_ACQ)
+	switch (x->km.state) {
+	case XFRM_STATE_VALID:
+		sa->sadb_sa_state = x->km.dying ?
+			SADB_SASTATE_DYING : SADB_SASTATE_MATURE;
+		break;
+	case XFRM_STATE_ACQ:
 		sa->sadb_sa_state = SADB_SASTATE_LARVAL;
-	else if (x->km.state == XFRM_STATE_EXPIRED)
+		break;
+	default:
 		sa->sadb_sa_state = SADB_SASTATE_DEAD;
+		break;
+	}
 	sa->sadb_sa_auth = 0;
 	if (x->aalg) {
 		struct xfrm_algo_desc *a = xfrm_aalg_get_byname(x->aalg->alg_name, 0);