| /* |
| * Copyright (c) 2016-2017, The OpenThread Authors. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holder nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * @file |
| * This file implements MechCop TLV helper functions. |
| */ |
| |
| #include "meshcop_tlvs.hpp" |
| |
| namespace ot { |
| namespace MeshCoP { |
| |
| bool SteeringDataTlv::IsCleared(void) const |
| { |
| bool rval = true; |
| |
| for (uint8_t i = 0; i < GetLength(); i++) |
| { |
| if (mSteeringData[i] != 0) |
| { |
| rval = false; |
| break; |
| } |
| } |
| |
| return rval; |
| } |
| |
| void SteeringDataTlv::ComputeBloomFilter(otExtAddress *aExtAddress) |
| { |
| Crc16 ccitt(Crc16::kCcitt); |
| Crc16 ansi(Crc16::kAnsi); |
| |
| for (size_t j = 0; j < sizeof(otExtAddress); j++) |
| { |
| uint8_t byte = aExtAddress->m8[j]; |
| ccitt.Update(byte); |
| ansi.Update(byte); |
| } |
| |
| SetBit(ccitt.Get() % GetNumBits()); |
| SetBit(ansi.Get() % GetNumBits()); |
| } |
| |
| } // namespace ot |
| } // namespace Thread |