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authorArman Uguray <armansito@chromium.org>2015-03-25 18:53:44 -0700
committerMarcel Holtmann <marcel@holtmann.org>2015-03-26 03:30:29 +0100
commit5507e358112af307c1c8595a04a0ef172d197f3c (patch)
tree0ecffc6aef8e907941e0df15af5207efec5435b9 /net/bluetooth
parent67e0c0cd8f5afea17689f7688041e9d215df6875 (diff)
Bluetooth: Support the "tx-power" adv flag
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>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/mgmt.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index cc4e76f8be0e..de321b9087e7 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -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.
*/