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Code Pull requests 5 Wiki Activity

xfrm_user: don't copy esn replay window twice for new states

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The ESN replay window was already fully initialized in
xfrm_alloc_replay_state_esn(). No need to copy it again.

Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mathias Krause 2012-09-19 11:33:43 +00:00 committed by David S. Miller
parent ecd7918745
commit e3ac104d41
1 changed files with 5 additions and 4 deletions
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9
net/xfrm/xfrm_user.c
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@ -461,10 +461,11 @@ 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];
@ -574,7 +575,7 @@ 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;
@ -1848,7 +1849,7 @@ 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;