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authorVinicius Costa Gomes <vinicius.gomes@openbossa.org>2011-07-08 18:31:46 -0300
committerJaikumar Ganesh <jaikumar@google.com>2011-07-11 11:59:42 -0700
commit89daa34bcd42062221247172ea2653521dc89e6c (patch)
treefd6c25eab6ff386327a9a1494728bd1035a59cf6 /net
parent1fa2de3b1af303eb0b1c04c302bb5f62b4b4c596 (diff)
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')
-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 146b614d10e..5c36b3e8739 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;