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Bluetooth: Allow L2CAP to increase the security level

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Some incomming connections needs to increase the security level by
requesting encryption for example (HID keyboard case). This change allows
the userspace to change it through setsockopt with defer_setup enabled.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Gustavo F. Padovan 2011-11-05 19:58:31 -02:00
parent d45fc42323
commit 0bee1d60cb
1 changed files with 13 additions and 3 deletions
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16
net/bluetooth/l2cap_sock.c
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@ -625,8 +625,13 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
chan->sec_level = sec.level; chan->sec_level = sec.level;
if (!chan->conn)
break;
conn = chan->conn; conn = chan->conn;
if (conn && chan->scid == L2CAP_CID_LE_DATA) {
/*change security for LE channels */
if (chan->scid == L2CAP_CID_LE_DATA) {
if (!conn->hcon->out) { if (!conn->hcon->out) {
err = -EINVAL; err = -EINVAL;
break; break;
@ -634,9 +639,14 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
if (smp_conn_security(conn, sec.level)) if (smp_conn_security(conn, sec.level))
break; break;
err = 0;
sk->sk_state = BT_CONFIG; sk->sk_state = BT_CONFIG;
/* or for ACL link, under defer_setup time */
} else if (sk->sk_state == BT_CONNECT2 &&
bt_sk(sk)->defer_setup) {
err = l2cap_chan_check_security(chan);
} else {
err = -EINVAL;
} }
break; break;