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authorMathias Krause <minipli@googlemail.com>2012-09-19 11:33:43 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-13 05:38:41 +0900
commit743b911d8b2214bfa9ecd1631edbe6f61f8fdced (patch)
tree7266729acce0b72e62a1339c67343a152f34e60a
parent0c5e37586ef83845acbae1738e693bc97c12d4c3 (diff)
downloadlwn-743b911d8b2214bfa9ecd1631edbe6f61f8fdced.tar.gz
lwn-743b911d8b2214bfa9ecd1631edbe6f61f8fdced.zip
xfrm_user: don't copy esn replay window twice for new states
[ Upstream commit e3ac104d41a97b42316915020ba228c505447d21 ] The ESN replay window was already fully initialized in xfrm_alloc_replay_state_esn(). No need to copy it again. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--net/xfrm/xfrm_user.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 74ea70f5f358..e0972b26a598 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -442,10 +442,11 @@ static void copy_from_user_state(struct xfrm_state *x, struct xfrm_usersa_info *
* somehow made shareable and move it to xfrm_state.c - JHS
*
*/
-static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs)
+static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs,
+ int update_esn)
{
struct nlattr *rp = attrs[XFRMA_REPLAY_VAL];
- struct nlattr *re = attrs[XFRMA_REPLAY_ESN_VAL];
+ struct nlattr *re = update_esn ? attrs[XFRMA_REPLAY_ESN_VAL] : NULL;
struct nlattr *lt = attrs[XFRMA_LTIME_VAL];
struct nlattr *et = attrs[XFRMA_ETIMER_THRESH];
struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH];
@@ -555,7 +556,7 @@ static struct xfrm_state *xfrm_state_construct(struct net *net,
goto error;
/* override default values from above */
- xfrm_update_ae_params(x, attrs);
+ xfrm_update_ae_params(x, attrs, 0);
return x;
@@ -1801,7 +1802,7 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
goto out;
spin_lock_bh(&x->lock);
- xfrm_update_ae_params(x, attrs);
+ xfrm_update_ae_params(x, attrs, 1);
spin_unlock_bh(&x->lock);
c.event = nlh->nlmsg_type;