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authorVinicius Costa Gomes <vinicius.gomes@openbossa.org>2011-07-08 18:31:46 -0300
committerGustavo F. Padovan <padovan@profusion.mobi>2011-07-08 18:39:31 -0300
commit8f360119243c214eb5c5549c61981d51a276154a (patch)
treefc5fce3d33d7cfcbf4326936f35e2382473b334c /net/bluetooth
parent726b4ffcaa450d9593b9b6ac8605967ce9f3e506 (diff)
downloadblackbird-op-linux-8f360119243c214eb5c5549c61981d51a276154a.tar.gz
blackbird-op-linux-8f360119243c214eb5c5549c61981d51a276154a.zip
Bluetooth: Add support for returning the encryption key size
This will be useful when userspace wants to restrict some kinds of operations based on the length of the key size used to encrypt the link. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/l2cap_sock.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 146b614d10ed..5c36b3e8739c 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -422,8 +422,12 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
break;
}
+ memset(&sec, 0, sizeof(sec));
sec.level = chan->sec_level;
+ if (sk->sk_state == BT_CONNECTED)
+ sec.key_size = chan->conn->hcon->enc_key_size;
+
len = min_t(unsigned int, len, sizeof(sec));
if (copy_to_user(optval, (char *) &sec, len))
err = -EFAULT;
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