| // |
| // Copyright 2015 Google, Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at: |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #include "bluetooth/advertise_data.h" |
| |
| #include <base/logging.h> |
| |
| #include "stack/include/bt_types.h" |
| #include "stack/include/hcidefs.h" |
| |
| namespace bluetooth { |
| |
| AdvertiseData::AdvertiseData(const std::vector<uint8_t>& data) : data_(data) {} |
| |
| AdvertiseData::AdvertiseData() {} |
| |
| AdvertiseData::AdvertiseData(const AdvertiseData& other) : data_(other.data_) {} |
| |
| bool AdvertiseData::IsValid() const { |
| size_t len = data_.size(); |
| |
| // Consider empty data as valid. |
| if (!len) return true; |
| |
| for (size_t i = 0, field_len = 0; i < len; i += (field_len + 1)) { |
| field_len = data_[i]; |
| |
| // If the length of the current field would exceed the total data length, |
| // then the data is badly formatted. |
| if (i + field_len >= len) { |
| VLOG(1) << "Advertising data badly formatted"; |
| return false; |
| } |
| |
| // A field length of 0 would be invalid as it should at least contain the |
| // EIR field type. |
| if (field_len < 1) return false; |
| |
| uint8_t type = data_[i + 1]; |
| |
| // Clients are not allowed to set the following EIR fields as these are |
| // managed by stack. |
| switch (type) { |
| case HCI_EIR_FLAGS_TYPE: |
| case HCI_EIR_OOB_BD_ADDR_TYPE: |
| case HCI_EIR_OOB_COD_TYPE: |
| case HCI_EIR_OOB_SSP_HASH_C_TYPE: |
| case HCI_EIR_OOB_SSP_RAND_R_TYPE: |
| VLOG(1) << "Cannot set EIR field type: " << type; |
| return false; |
| default: |
| break; |
| } |
| } |
| |
| return true; |
| } |
| |
| bool AdvertiseData::operator==(const AdvertiseData& rhs) const { |
| return data_ == rhs.data_; |
| } |
| |
| AdvertiseData& AdvertiseData::operator=(const AdvertiseData& other) { |
| if (this == &other) return *this; |
| |
| data_ = other.data_; |
| return *this; |
| } |
| |
| } // namespace bluetooth |