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Bluetooth: Add management command for Secure Connection Only Mode 

With support for Secure Connections it is possible to switch the
controller into a mode that is called Secure Connections Only. In
this mode only security level 4 connections are allowed (with the
exception of security level 0 approved services).

This patch just introduces the management command and setting of the
right internal flags to enable this mode. It does not yet enforce it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-02-01 09:19:57 -08:00 committed by Johan Hedberg
parent 03c515d748
commit 0ab04a9c0e
1 changed files with 30 additions and 11 deletions
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35
net/bluetooth/mgmt.c
View File

@ -4043,7 +4043,7 @@ static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
{ {
struct mgmt_mode *cp = data; struct mgmt_mode *cp = data;
struct pending_cmd *cmd; struct pending_cmd *cmd;
u8 status; u8 val, status;
int err; int err;
BT_DBG("request for %s", hdev->name); BT_DBG("request for %s", hdev->name);
@ -4058,7 +4058,7 @@ static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
return cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN, return cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
MGMT_STATUS_NOT_SUPPORTED); MGMT_STATUS_NOT_SUPPORTED);
if (cp->val != 0x00 && cp->val != 0x01) if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
return cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN, return cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
MGMT_STATUS_INVALID_PARAMS); MGMT_STATUS_INVALID_PARAMS);
@ -4067,12 +4067,18 @@ static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
if (!hdev_is_powered(hdev)) { if (!hdev_is_powered(hdev)) {
bool changed; bool changed;
if (cp->val) if (cp->val) {
changed = !test_and_set_bit(HCI_SC_ENABLED, changed = !test_and_set_bit(HCI_SC_ENABLED,
&hdev->dev_flags); &hdev->dev_flags);
if (cp->val == 0x02)
set_bit(HCI_SC_ONLY, &hdev->dev_flags);
else else
clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
} else {
changed = test_and_clear_bit(HCI_SC_ENABLED, changed = test_and_clear_bit(HCI_SC_ENABLED,
&hdev->dev_flags); &hdev->dev_flags);
clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
}
err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev); err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
if (err < 0) if (err < 0)
@ -4090,7 +4096,10 @@ static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
goto failed; goto failed;
} }
if (!!cp->val == test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) { val = !!cp->val;
if (val == test_bit(HCI_SC_ENABLED, &hdev->dev_flags) &&
(cp->val == 0x02) == test_bit(HCI_SC_ONLY, &hdev->dev_flags)) {
err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev); err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
goto failed; goto failed;
} }
@ -4101,12 +4110,17 @@ static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
goto failed; goto failed;
} }
err = hci_send_cmd(hdev, HCI_OP_WRITE_SC_SUPPORT, 1, &cp->val); err = hci_send_cmd(hdev, HCI_OP_WRITE_SC_SUPPORT, 1, &val);
if (err < 0) { if (err < 0) {
mgmt_pending_remove(cmd); mgmt_pending_remove(cmd);
goto failed; goto failed;
} }
if (cp->val == 0x02)
set_bit(HCI_SC_ONLY, &hdev->dev_flags);
else
clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
failed: failed:
hci_dev_unlock(hdev); hci_dev_unlock(hdev);
return err; return err;
@ -5063,19 +5077,24 @@ void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
if (status) { if (status) {
u8 mgmt_err = mgmt_status(status); u8 mgmt_err = mgmt_status(status);
if (enable && test_and_clear_bit(HCI_SC_ENABLED, if (enable) {
if (test_and_clear_bit(HCI_SC_ENABLED,
&hdev->dev_flags)) &hdev->dev_flags))
new_settings(hdev, NULL); new_settings(hdev, NULL);
clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
}
mgmt_pending_foreach(MGMT_OP_SET_SECURE_CONN, hdev, mgmt_pending_foreach(MGMT_OP_SET_SECURE_CONN, hdev,
cmd_status_rsp, &mgmt_err); cmd_status_rsp, &mgmt_err);
return; return;
} }
if (enable) if (enable) {
changed = !test_and_set_bit(HCI_SC_ENABLED, &hdev->dev_flags); changed = !test_and_set_bit(HCI_SC_ENABLED, &hdev->dev_flags);
else } else {
changed = test_and_clear_bit(HCI_SC_ENABLED, &hdev->dev_flags); changed = test_and_clear_bit(HCI_SC_ENABLED, &hdev->dev_flags);
clear_bit(HCI_SC_ONLY, &hdev->dev_flags);
}
mgmt_pending_foreach(MGMT_OP_SET_SECURE_CONN, hdev, mgmt_pending_foreach(MGMT_OP_SET_SECURE_CONN, hdev,
settings_rsp, &match); settings_rsp, &match);