[IPSEC]: Move state lock into x->type->input
This patch releases the lock on the state before calling
x->type->input. It also adds the lock to the spots where they're
currently needed.
Most of those places (all except mip6) are expected to disappear with
async crypto.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index d4b59ec..1b51d1e 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -370,6 +370,7 @@
ip6h->flow_lbl[2] = 0;
ip6h->hop_limit = 0;
+ spin_lock(&x->lock);
{
u8 auth_data[MAX_AH_AUTH_LEN];
@@ -378,13 +379,17 @@
skb_push(skb, hdr_len);
err = ah_mac_digest(ahp, skb, ah->auth_data);
if (err)
- goto free_out;
+ goto unlock;
if (memcmp(ahp->work_icv, auth_data, ahp->icv_trunc_len)) {
LIMIT_NETDEBUG(KERN_WARNING "ipsec ah authentication error\n");
err = -EBADMSG;
- goto free_out;
}
}
+unlock:
+ spin_unlock(&x->lock);
+
+ if (err)
+ goto free_out;
skb->network_header += ah_hlen;
memcpy(skb_network_header(skb), tmp_hdr, hdr_len);