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Bluetooth: Limit security mode 4 level 0 to connection oriented channels

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The exception for certain PSM channels when it comes to security
mode 4 level 0 should only be checked when actually a connection
oriented channel is established.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2013-10-12 07:19:31 -07:00 committed by Johan Hedberg
parent 43b1b8dfb4
commit 6a974b50a1
2 changed files with 22 additions and 12 deletions
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24
net/bluetooth/l2cap_core.c
View file

@ -677,7 +677,8 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
{
if (chan->chan_type == L2CAP_CHAN_RAW) {
switch (chan->chan_type) {
case L2CAP_CHAN_RAW:
switch (chan->sec_level) {
case BT_SECURITY_HIGH:
return HCI_AT_DEDICATED_BONDING_MITM;
@ -686,15 +687,19 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
default:
return HCI_AT_NO_BONDING;
}
} else if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
if (chan->sec_level == BT_SECURITY_LOW)
chan->sec_level = BT_SECURITY_SDP;
break;
case L2CAP_CHAN_CONN_ORIENTED:
if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
if (chan->sec_level == BT_SECURITY_LOW)
chan->sec_level = BT_SECURITY_SDP;
if (chan->sec_level == BT_SECURITY_HIGH)
return HCI_AT_NO_BONDING_MITM;
else
return HCI_AT_NO_BONDING;
} else {
if (chan->sec_level == BT_SECURITY_HIGH)
return HCI_AT_NO_BONDING_MITM;
else
return HCI_AT_NO_BONDING;
}
/* fall through */
default:
switch (chan->sec_level) {
case BT_SECURITY_HIGH:
return HCI_AT_GENERAL_BONDING_MITM;
@ -703,6 +708,7 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
default:
return HCI_AT_NO_BONDING;
}
break;
}
}

10
net/bluetooth/l2cap_sock.c
View file

@ -100,9 +100,13 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
if (err < 0)
goto done;
if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
__le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
chan->sec_level = BT_SECURITY_SDP;
switch (chan->chan_type) {
case L2CAP_CHAN_CONN_ORIENTED:
if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
__le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
chan->sec_level = BT_SECURITY_SDP;
break;
}
bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);