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/******************************************************************************
*
* Copyright 2017 The Android Open Source Project
*
* 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 "raw_address.h"
#include <base/strings/string_split.h>
#include <base/strings/stringprintf.h>
#include <stdint.h>
#include <algorithm>
#include <array>
#include <vector>
static_assert(sizeof(RawAddress) == 6, "RawAddress must be 6 bytes long!");
const RawAddress RawAddress::kAny{{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}};
const RawAddress RawAddress::kEmpty{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
RawAddress::RawAddress(const uint8_t (&addr)[6]) {
std::copy(addr, addr + kLength, address);
}
RawAddress::RawAddress(const std::array<uint8_t, kLength> mac) {
std::copy(mac.begin(), mac.end(), address);
}
std::string RawAddress::ToString() const { return ToColonSepHexString(); }
std::string RawAddress::ToColonSepHexString() const {
return base::StringPrintf("%02x:%02x:%02x:%02x:%02x:%02x", address[0],
address[1], address[2], address[3], address[4],
address[5]);
}
std::string RawAddress::ToStringForLogging() const {
return ToColonSepHexString();
}
std::string RawAddress::ToRedactedStringForLogging() const {
return base::StringPrintf("xx:xx:xx:xx:%02x:%02x", address[4], address[5]);
}
std::array<uint8_t, RawAddress::kLength> RawAddress::ToArray() const {
std::array<uint8_t, kLength> mac;
std::copy(std::begin(address), std::end(address), std::begin(mac));
return mac;
}
bool RawAddress::FromString(const std::string& from, RawAddress& to) {
RawAddress new_addr;
if (from.length() != 17) return false;
std::vector<std::string> byte_tokens =
base::SplitString(from, ":", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
if (byte_tokens.size() != 6) return false;
for (int i = 0; i < 6; i++) {
const auto& token = byte_tokens[i];
if (token.length() != 2) return false;
char* temp = nullptr;
new_addr.address[i] = strtol(token.c_str(), &temp, 16);
if (*temp != '\0') return false;
}
to = new_addr;
return true;
}
size_t RawAddress::FromOctets(const uint8_t* from) {
std::copy(from, from + kLength, address);
return kLength;
};
bool RawAddress::IsValidAddress(const std::string& address) {
RawAddress tmp;
return RawAddress::FromString(address, tmp);
}
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