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| author | Mathias Krause <minipli@googlemail.com> | 2012-09-19 13:33:43 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-21 00:08:40 +0200 |
| commit | e3ac104d41a97b42316915020ba228c505447d21 (patch) | |
| tree | 70dbdb447f4bb01c2aac7240267a9844eab29e36 | |
| parent | xfrm_user: ensure user supplied esn replay window is valid (diff) | |
| download | linux-e3ac104d41a97b42316915020ba228c505447d21.tar.xz linux-e3ac104d41a97b42316915020ba228c505447d21.zip | |
xfrm_user: don't copy esn replay window twice for new states
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>
| -rw-r--r-- | net/xfrm/xfrm_user.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 5927065e97cf..289f4bf18ff0 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -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; |