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authorJohan Hedberg <johan.hedberg@intel.com>2012-02-22 13:58:37 +0400
committerJohan Hedberg <johan.hedberg@intel.com>2012-02-23 15:06:58 +0400
commit47990ea09d393da8fb6cf284f4dba704c3661973 (patch)
tree60cdfa2ffaacebc6a715262147237a6f35ddae7d /net/bluetooth
parent2e0052e4cf78e3e205e92d82ee572ed726e315d6 (diff)
downloadlinux-47990ea09d393da8fb6cf284f4dba704c3661973.tar.xz
Bluetooth: mgmt: Make Set Link Security callable while powered off
This patch makes it possible to change the Link Security setting while powered off and have it automatically enabled when powering on a device. To track the desired state once powered on a new HCI_LINK_SECURITY flag is added. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_event.c6
-rw-r--r--net/bluetooth/mgmt.c33
2 files changed, 34 insertions, 5 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 2a5d05c05e35..5fb1ee516d3a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -594,6 +594,12 @@ static void hci_setup(struct hci_dev *hdev)
sizeof(cp), &cp);
}
+ if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) {
+ u8 enable = 1;
+ hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE,
+ sizeof(enable), &enable);
+ }
+
if (hdev->features[4] & LMP_LE)
hci_set_le_support(hdev);
}
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index e8f890d7256a..69d4e1a699a3 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -410,7 +410,7 @@ static u32 get_current_settings(struct hci_dev *hdev)
if (hdev->host_features[0] & LMP_HOST_LE)
settings |= MGMT_SETTING_LE;
- if (test_bit(HCI_AUTH, &hdev->flags))
+ if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
settings |= MGMT_SETTING_LINK_SECURITY;
if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
@@ -1067,8 +1067,21 @@ static int set_link_security(struct sock *sk, u16 index, void *data, u16 len)
hci_dev_lock(hdev);
if (!hdev_is_powered(hdev)) {
- err = cmd_status(sk, index, MGMT_OP_SET_LINK_SECURITY,
- MGMT_STATUS_NOT_POWERED);
+ bool changed = false;
+
+ if (!!cp->val != test_bit(HCI_LINK_SECURITY,
+ &hdev->dev_flags)) {
+ change_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
+ changed = true;
+ }
+
+ err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
+ if (err < 0)
+ goto failed;
+
+ if (changed)
+ err = new_settings(hdev, sk);
+
goto failed;
}
@@ -3338,7 +3351,8 @@ int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
{
struct cmd_lookup match = { NULL, hdev };
- int err;
+ bool changed = false;
+ int err = 0;
if (status) {
u8 mgmt_err = mgmt_status(status);
@@ -3347,10 +3361,19 @@ int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
return 0;
}
+ if (test_bit(HCI_AUTH, &hdev->flags)) {
+ if (!test_and_set_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
+ changed = true;
+ } else {
+ if (test_and_clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
+ changed = true;
+ }
+
mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
&match);
- err = new_settings(hdev, match.sk);
+ if (changed)
+ err = new_settings(hdev, match.sk);
if (match.sk)
sock_put(match.sk);