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Bluetooth: Fix error returns for Read Local OOB Extended Data commands 

The Read Local OOB Extended Data commands are required to return the
address type and the data length at least. However currently the error
returns only the address type.

To fix this and avoid any extra allocations or stack memory, rearrange
the code so that the same path can be used for error returns.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-03-28 15:18:59 -07:00 коммит произвёл Johan Hedberg
Родитель efcd8c98e0
Коммит 57b0d3e8e7
1 изменённых файлов: 34 добавлений и 37 удалений
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71
net/bluetooth/mgmt.c
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@ -6414,36 +6414,30 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
BT_DBG("%s", hdev->name);
if (!hdev_is_powered(hdev))
return mgmt_cmd_complete(sk, hdev->id,
MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
MGMT_STATUS_NOT_POWERED,
&cp->type, sizeof(cp->type));
switch (cp->type) {
case BIT(BDADDR_BREDR):
status = mgmt_bredr_support(hdev);
if (status)
return mgmt_cmd_complete(sk, hdev->id,
MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
status, &cp->type,
sizeof(cp->type));
eir_len = 5;
break;
case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
status = mgmt_le_support(hdev);
if (status)
return mgmt_cmd_complete(sk, hdev->id,
MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
status, &cp->type,
sizeof(cp->type));
eir_len = 9 + 3 + 18 + 18 + 3;
break;
default:
return mgmt_cmd_complete(sk, hdev->id,
MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
MGMT_STATUS_INVALID_PARAMS,
&cp->type, sizeof(cp->type));
if (hdev_is_powered(hdev)) {
switch (cp->type) {
case BIT(BDADDR_BREDR):
status = mgmt_bredr_support(hdev);
if (status)
eir_len = 0;
else
eir_len = 5;
break;
case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
status = mgmt_le_support(hdev);
if (status)
eir_len = 0;
else
eir_len = 9 + 3 + 18 + 18 + 3;
break;
default:
status = MGMT_STATUS_INVALID_PARAMS;
eir_len = 0;
break;
}
} else {
status = MGMT_STATUS_NOT_POWERED;
eir_len = 0;
}
rp_len = sizeof(*rp) + eir_len;
@ -6451,6 +6445,9 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
if (!rp)
return -ENOMEM;
if (status)
goto complete;
hci_dev_lock(hdev);
eir_len = 0;
@ -6463,11 +6460,8 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
if (hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
smp_generate_oob(hdev, hash, rand) < 0) {
hci_dev_unlock(hdev);
err = mgmt_cmd_complete(sk, hdev->id,
MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
MGMT_STATUS_FAILED,
&cp->type, sizeof(cp->type));
goto done;
status = MGMT_STATUS_FAILED;
goto complete;
}
if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
@ -6519,12 +6513,15 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
hci_sock_set_flag(sk, HCI_MGMT_OOB_DATA_EVENTS);
status = MGMT_STATUS_SUCCESS;
complete:
rp->type = cp->type;
rp->eir_len = cpu_to_le16(eir_len);
err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
MGMT_STATUS_SUCCESS, rp, sizeof(*rp) + eir_len);
if (err < 0)
status, rp, sizeof(*rp) + eir_len);
if (err < 0 || status)
goto done;
err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,