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xfrm: Clone states properly on migration

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We loose a lot of information of the original state if we
clone it with xfrm_state_clone(). In particular, there is
no crypto algorithm attached if the original state uses
an aead algorithm. This patch add the missing information
to the clone state.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert
2014-02-19 13:33:24 +01:00
parent 8c0cba22e1
commit ee5c23176f
3 changed files with 19 additions and 5 deletions
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8
net/xfrm/xfrm_state.c
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@@ -1159,6 +1159,11 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp)
}
x->props.aalgo = orig->props.aalgo;
if (orig->aead) {
x->aead = xfrm_algo_aead_clone(orig->aead);
if (!x->aead)
goto error;
}
if (orig->ealg) {
x->ealg = xfrm_algo_clone(orig->ealg);
if (!x->ealg)
@@ -1201,6 +1206,9 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp)
x->props.flags = orig->props.flags;
x->props.extra_flags = orig->props.extra_flags;
x->tfcpad = orig->tfcpad;
x->replay_maxdiff = orig->replay_maxdiff;
x->replay_maxage = orig->replay_maxage;
x->curlft.add_time = orig->curlft.add_time;
x->km.state = orig->km.state;
x->km.seq = orig->km.seq;