diff options
| -rw-r--r-- | net/bluetooth/mgmt.c | 38 |
1 files changed, 30 insertions, 8 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 672ff5b66c21..c1804527fa3b 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -975,13 +975,28 @@ static u8 create_default_adv_data(struct hci_dev *hdev, u8 *ptr) static u8 create_instance_adv_data(struct hci_dev *hdev, u8 *ptr) { - /* TODO: Set the appropriate entries based on advertising instance flags - * here once flags other than 0 are supported. - */ + u8 ad_len = 0, flags = 0; + + if (hdev->adv_instance.flags & MGMT_ADV_FLAG_DISCOV) + flags |= LE_AD_GENERAL; + + if (flags) { + if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) + flags |= LE_AD_NO_BREDR; + + ptr[0] = 0x02; + ptr[1] = EIR_FLAGS; + ptr[2] = flags; + + 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; - return hdev->adv_instance.adv_data_len; + return ad_len; } static void update_adv_data_for_instance(struct hci_request *req, u8 instance) @@ -6556,12 +6571,16 @@ static int read_adv_features(struct sock *sk, struct hci_dev *hdev, } static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data, - u8 len) + u8 len, bool is_adv_data) { u8 max_len = HCI_MAX_AD_LENGTH; int i, cur_len; + bool flags_managed = false; - /* TODO: Correctly reduce len based on adv_flags. */ + if (is_adv_data && (adv_flags & MGMT_ADV_FLAG_DISCOV)) { + flags_managed = true; + max_len -= 3; + } if (len > max_len) return false; @@ -6570,6 +6589,9 @@ static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data, for (i = 0, cur_len = 0; i < len; i += (cur_len + 1)) { cur_len = data[i]; + if (flags_managed && data[i + 1] == EIR_FLAGS) + return false; + /* If the current field length would exceed the total data * length, then it's invalid. */ @@ -6671,9 +6693,9 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev, goto unlock; } - if (!tlv_data_is_valid(hdev, flags, cp->data, cp->adv_data_len) || + if (!tlv_data_is_valid(hdev, flags, cp->data, cp->adv_data_len, true) || !tlv_data_is_valid(hdev, flags, cp->data + cp->adv_data_len, - cp->scan_rsp_len)) { + cp->scan_rsp_len, false)) { err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING, MGMT_STATUS_INVALID_PARAMS); goto unlock; |
