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Bluetooth: Support the "tx-power" adv flag

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This patch adds support for the "tx-power" flag of the Add
Advertising command.

Signed-off-by: Arman Uguray <armansito@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Arman Uguray 2015-03-25 18:53:44 -07:00 committed by Marcel Holtmann
parent 67e0c0cd8f
commit 5507e35811
1 changed files with 19 additions and 0 deletions
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19
net/bluetooth/mgmt.c
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@ -1004,6 +1004,16 @@ static u8 create_instance_adv_data(struct hci_dev *hdev, u8 *ptr)
ptr += 3;
}
if (hdev->adv_tx_power != HCI_TX_POWER_INVALID &&
(hdev->adv_instance.flags & MGMT_ADV_FLAG_TX_POWER)) {
ptr[0] = 0x02;
ptr[1] = EIR_TX_POWER;
ptr[2] = (u8)hdev->adv_tx_power;
ad_len += 3;
ptr += 3;
}
memcpy(ptr, hdev->adv_instance.adv_data,
hdev->adv_instance.adv_data_len);
ad_len += hdev->adv_instance.adv_data_len;
@ -6588,6 +6598,7 @@ static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
u8 max_len = HCI_MAX_AD_LENGTH;
int i, cur_len;
bool flags_managed = false;
bool tx_power_managed = false;
u32 flags_params = MGMT_ADV_FLAG_DISCOV | MGMT_ADV_FLAG_LIMITED_DISCOV |
MGMT_ADV_FLAG_MANAGED_FLAGS;
@ -6596,6 +6607,11 @@ static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
max_len -= 3;
}
if (is_adv_data && (adv_flags & MGMT_ADV_FLAG_TX_POWER)) {
tx_power_managed = true;
max_len -= 3;
}
if (len > max_len)
return false;
@ -6606,6 +6622,9 @@ static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
if (flags_managed && data[i + 1] == EIR_FLAGS)
return false;
if (tx_power_managed && data[i + 1] == EIR_TX_POWER)
return false;
/* If the current field length would exceed the total data
* length, then it's invalid.
*/