Device interface library for multiple platforms including Mbed.
Dependents: DeepCover Embedded Security in IoT MaximInterface MAXREFDES155#
Maxim Interface is a library framework focused on providing flexible and expressive hardware interfaces. Both communication interfaces such as I2C and 1-Wire and device interfaces such as DS18B20 are supported. Modern C++ concepts are used extensively while keeping compatibility with C++98/C++03 and requiring no external dependencies. The embedded-friendly design does not depend on exceptions or RTTI.
The full version of the project is hosted on GitLab: https://gitlab.com/iabenz/MaximInterface
MaximInterfaceDevices/DS28E38.hpp@7:9cd16581b578, 2019-07-22 (annotated)
- Committer:
- IanBenzMaxim
- Date:
- Mon Jul 22 11:44:07 2019 -0500
- Revision:
- 7:9cd16581b578
- Child:
- 8:5ea891c7d1a1
Updated to version 1.9.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
IanBenzMaxim | 7:9cd16581b578 | 1 | /******************************************************************************* |
IanBenzMaxim | 7:9cd16581b578 | 2 | * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved. |
IanBenzMaxim | 7:9cd16581b578 | 3 | * |
IanBenzMaxim | 7:9cd16581b578 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
IanBenzMaxim | 7:9cd16581b578 | 5 | * copy of this software and associated documentation files (the "Software"), |
IanBenzMaxim | 7:9cd16581b578 | 6 | * to deal in the Software without restriction, including without limitation |
IanBenzMaxim | 7:9cd16581b578 | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
IanBenzMaxim | 7:9cd16581b578 | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
IanBenzMaxim | 7:9cd16581b578 | 9 | * Software is furnished to do so, subject to the following conditions: |
IanBenzMaxim | 7:9cd16581b578 | 10 | * |
IanBenzMaxim | 7:9cd16581b578 | 11 | * The above copyright notice and this permission notice shall be included |
IanBenzMaxim | 7:9cd16581b578 | 12 | * in all copies or substantial portions of the Software. |
IanBenzMaxim | 7:9cd16581b578 | 13 | * |
IanBenzMaxim | 7:9cd16581b578 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
IanBenzMaxim | 7:9cd16581b578 | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
IanBenzMaxim | 7:9cd16581b578 | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
IanBenzMaxim | 7:9cd16581b578 | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
IanBenzMaxim | 7:9cd16581b578 | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
IanBenzMaxim | 7:9cd16581b578 | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
IanBenzMaxim | 7:9cd16581b578 | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
IanBenzMaxim | 7:9cd16581b578 | 21 | * |
IanBenzMaxim | 7:9cd16581b578 | 22 | * Except as contained in this notice, the name of Maxim Integrated |
IanBenzMaxim | 7:9cd16581b578 | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
IanBenzMaxim | 7:9cd16581b578 | 24 | * Products, Inc. Branding Policy. |
IanBenzMaxim | 7:9cd16581b578 | 25 | * |
IanBenzMaxim | 7:9cd16581b578 | 26 | * The mere transfer of this software does not imply any licenses |
IanBenzMaxim | 7:9cd16581b578 | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
IanBenzMaxim | 7:9cd16581b578 | 28 | * trademarks, maskwork rights, or any other form of intellectual |
IanBenzMaxim | 7:9cd16581b578 | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
IanBenzMaxim | 7:9cd16581b578 | 30 | * ownership rights. |
IanBenzMaxim | 7:9cd16581b578 | 31 | *******************************************************************************/ |
IanBenzMaxim | 7:9cd16581b578 | 32 | |
IanBenzMaxim | 7:9cd16581b578 | 33 | #ifndef MaximInterfaceDevices_DS28E38 |
IanBenzMaxim | 7:9cd16581b578 | 34 | #define MaximInterfaceDevices_DS28E38 |
IanBenzMaxim | 7:9cd16581b578 | 35 | |
IanBenzMaxim | 7:9cd16581b578 | 36 | #include <stdint.h> |
IanBenzMaxim | 7:9cd16581b578 | 37 | #include <MaximInterfaceCore/Algorithm.hpp> |
IanBenzMaxim | 7:9cd16581b578 | 38 | #include <MaximInterfaceCore/array_span.hpp> |
IanBenzMaxim | 7:9cd16581b578 | 39 | #include <MaximInterfaceCore/Ecc256.hpp> |
IanBenzMaxim | 7:9cd16581b578 | 40 | #include <MaximInterfaceCore/FlagSet.hpp> |
IanBenzMaxim | 7:9cd16581b578 | 41 | #include <MaximInterfaceCore/ManId.hpp> |
IanBenzMaxim | 7:9cd16581b578 | 42 | #include <MaximInterfaceCore/RomId.hpp> |
IanBenzMaxim | 7:9cd16581b578 | 43 | #include <MaximInterfaceCore/RunCommand.hpp> |
IanBenzMaxim | 7:9cd16581b578 | 44 | #include <MaximInterfaceCore/system_error.hpp> |
IanBenzMaxim | 7:9cd16581b578 | 45 | #include "Config.hpp" |
IanBenzMaxim | 7:9cd16581b578 | 46 | |
IanBenzMaxim | 7:9cd16581b578 | 47 | namespace MaximInterfaceDevices { |
IanBenzMaxim | 7:9cd16581b578 | 48 | |
IanBenzMaxim | 7:9cd16581b578 | 49 | class DS28E38 { |
IanBenzMaxim | 7:9cd16581b578 | 50 | public: |
IanBenzMaxim | 7:9cd16581b578 | 51 | /// Device command results. |
IanBenzMaxim | 7:9cd16581b578 | 52 | enum ErrorValue { |
IanBenzMaxim | 7:9cd16581b578 | 53 | InvalidOperationError = 0x55, |
IanBenzMaxim | 7:9cd16581b578 | 54 | InvalidParameterError = 0x77, |
IanBenzMaxim | 7:9cd16581b578 | 55 | InvalidSequenceError = 0x33, |
IanBenzMaxim | 7:9cd16581b578 | 56 | InternalError = 0x22, |
IanBenzMaxim | 7:9cd16581b578 | 57 | DeviceDisabledError = 0x88, |
IanBenzMaxim | 7:9cd16581b578 | 58 | InvalidResponseError = |
IanBenzMaxim | 7:9cd16581b578 | 59 | 0x100 ///< Command response does not match expected format. |
IanBenzMaxim | 7:9cd16581b578 | 60 | }; |
IanBenzMaxim | 7:9cd16581b578 | 61 | |
IanBenzMaxim | 7:9cd16581b578 | 62 | /// @name Device memory pages |
IanBenzMaxim | 7:9cd16581b578 | 63 | /// @{ |
IanBenzMaxim | 7:9cd16581b578 | 64 | |
IanBenzMaxim | 7:9cd16581b578 | 65 | static const int decrementCounterPage = 3; |
IanBenzMaxim | 7:9cd16581b578 | 66 | static const int publicKeyXPage = 4; |
IanBenzMaxim | 7:9cd16581b578 | 67 | static const int publicKeyYPage = 5; |
IanBenzMaxim | 7:9cd16581b578 | 68 | static const int privateKeyPage = 6; |
IanBenzMaxim | 7:9cd16581b578 | 69 | |
IanBenzMaxim | 7:9cd16581b578 | 70 | /// @} |
IanBenzMaxim | 7:9cd16581b578 | 71 | |
IanBenzMaxim | 7:9cd16581b578 | 72 | static const int memoryPages = 7; |
IanBenzMaxim | 7:9cd16581b578 | 73 | |
IanBenzMaxim | 7:9cd16581b578 | 74 | /// Holds a device memory page. |
IanBenzMaxim | 7:9cd16581b578 | 75 | typedef Core::array_span<uint_least8_t, 32> Page; |
IanBenzMaxim | 7:9cd16581b578 | 76 | |
IanBenzMaxim | 7:9cd16581b578 | 77 | // Format page authentication input data. |
IanBenzMaxim | 7:9cd16581b578 | 78 | class PageAuthenticationData; |
IanBenzMaxim | 7:9cd16581b578 | 79 | |
IanBenzMaxim | 7:9cd16581b578 | 80 | /// Page protection types. |
IanBenzMaxim | 7:9cd16581b578 | 81 | enum PageProtectionType { |
IanBenzMaxim | 7:9cd16581b578 | 82 | RP = 0x01, ///< Read protection. |
IanBenzMaxim | 7:9cd16581b578 | 83 | WP = 0x02, ///< Write protection. |
IanBenzMaxim | 7:9cd16581b578 | 84 | EM = 0x04, ///< EPROM emulation mode. |
IanBenzMaxim | 7:9cd16581b578 | 85 | DC = 0x08, ///< Decrement counter. |
IanBenzMaxim | 7:9cd16581b578 | 86 | PF = 0x10 ///< PUF used as private key. |
IanBenzMaxim | 7:9cd16581b578 | 87 | }; |
IanBenzMaxim | 7:9cd16581b578 | 88 | typedef Core::FlagSet<PageProtectionType, 5> PageProtection; |
IanBenzMaxim | 7:9cd16581b578 | 89 | |
IanBenzMaxim | 7:9cd16581b578 | 90 | struct Status { |
IanBenzMaxim | 7:9cd16581b578 | 91 | enum EntropyHealthTestStatus { |
IanBenzMaxim | 7:9cd16581b578 | 92 | TestNotPerformed = 0xFF, |
IanBenzMaxim | 7:9cd16581b578 | 93 | EntropyHealthy = 0xAA, |
IanBenzMaxim | 7:9cd16581b578 | 94 | EntropyNotHealthy = 0xDD |
IanBenzMaxim | 7:9cd16581b578 | 95 | }; |
IanBenzMaxim | 7:9cd16581b578 | 96 | |
IanBenzMaxim | 7:9cd16581b578 | 97 | typedef Core::array<PageProtection, memoryPages> PageProtectionList; |
IanBenzMaxim | 7:9cd16581b578 | 98 | typedef Core::array<uint_least8_t, 2> RomVersion; |
IanBenzMaxim | 7:9cd16581b578 | 99 | |
IanBenzMaxim | 7:9cd16581b578 | 100 | PageProtectionList pageProtection; |
IanBenzMaxim | 7:9cd16581b578 | 101 | Core::ManId::array manId; |
IanBenzMaxim | 7:9cd16581b578 | 102 | RomVersion romVersion; |
IanBenzMaxim | 7:9cd16581b578 | 103 | EntropyHealthTestStatus entropyHealthTestStatus; |
IanBenzMaxim | 7:9cd16581b578 | 104 | }; |
IanBenzMaxim | 7:9cd16581b578 | 105 | |
IanBenzMaxim | 7:9cd16581b578 | 106 | explicit DS28E38(const Core::RunCommand & runCommand) |
IanBenzMaxim | 7:9cd16581b578 | 107 | : doRunCommand(runCommand) {} |
IanBenzMaxim | 7:9cd16581b578 | 108 | |
IanBenzMaxim | 7:9cd16581b578 | 109 | void setRunCommand(const Core::RunCommand & runCommand) { |
IanBenzMaxim | 7:9cd16581b578 | 110 | doRunCommand = runCommand; |
IanBenzMaxim | 7:9cd16581b578 | 111 | } |
IanBenzMaxim | 7:9cd16581b578 | 112 | |
IanBenzMaxim | 7:9cd16581b578 | 113 | /// @brief Write memory with no protection. |
IanBenzMaxim | 7:9cd16581b578 | 114 | /// @param pageNum Number of page to write. |
IanBenzMaxim | 7:9cd16581b578 | 115 | /// @param page Data to write. |
IanBenzMaxim | 7:9cd16581b578 | 116 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 117 | writeMemory(int pageNum, Page::const_span page); |
IanBenzMaxim | 7:9cd16581b578 | 118 | |
IanBenzMaxim | 7:9cd16581b578 | 119 | /// @brief Read memory with no protection. |
IanBenzMaxim | 7:9cd16581b578 | 120 | /// @param pageNum Number of page to read. |
IanBenzMaxim | 7:9cd16581b578 | 121 | /// @param[out] page Data that was read. |
IanBenzMaxim | 7:9cd16581b578 | 122 | MaximInterfaceDevices_EXPORT Core::error_code readMemory(int pageNum, |
IanBenzMaxim | 7:9cd16581b578 | 123 | Page::span page); |
IanBenzMaxim | 7:9cd16581b578 | 124 | |
IanBenzMaxim | 7:9cd16581b578 | 125 | /// @brief |
IanBenzMaxim | 7:9cd16581b578 | 126 | /// Reads the current status of the device and optionally performs an |
IanBenzMaxim | 7:9cd16581b578 | 127 | /// entropy health test. |
IanBenzMaxim | 7:9cd16581b578 | 128 | /// @param entropyHealthTest True to perform an entropy health test. |
IanBenzMaxim | 7:9cd16581b578 | 129 | /// @param[out] status Status that was read. |
IanBenzMaxim | 7:9cd16581b578 | 130 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 131 | readStatus(bool entropyHealthTest, Status & status); |
IanBenzMaxim | 7:9cd16581b578 | 132 | |
IanBenzMaxim | 7:9cd16581b578 | 133 | /// @brief Set the protection settings of a page. |
IanBenzMaxim | 7:9cd16581b578 | 134 | /// @param pageNum Number of page to write. |
IanBenzMaxim | 7:9cd16581b578 | 135 | /// @param protection Protection to write. |
IanBenzMaxim | 7:9cd16581b578 | 136 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 137 | setPageProtection(int pageNum, const PageProtection & protection); |
IanBenzMaxim | 7:9cd16581b578 | 138 | |
IanBenzMaxim | 7:9cd16581b578 | 139 | /// @brief Compute and read page authentication with ECDSA. |
IanBenzMaxim | 7:9cd16581b578 | 140 | /// @param pageNum Number of page to authenticate. |
IanBenzMaxim | 7:9cd16581b578 | 141 | /// @param anonymous True to disable use of ROM ID in computation. |
IanBenzMaxim | 7:9cd16581b578 | 142 | /// @param challenge Random challenge used to prevent replay attacks. |
IanBenzMaxim | 7:9cd16581b578 | 143 | /// @param[out] signature Computed page signature. |
IanBenzMaxim | 7:9cd16581b578 | 144 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 145 | computeAndReadPageAuthentication(int pageNum, bool anonymous, |
IanBenzMaxim | 7:9cd16581b578 | 146 | Page::const_span challenge, |
IanBenzMaxim | 7:9cd16581b578 | 147 | Core::Ecc256::Signature::span signature); |
IanBenzMaxim | 7:9cd16581b578 | 148 | |
IanBenzMaxim | 7:9cd16581b578 | 149 | /// Decrement the decrement-only counter. |
IanBenzMaxim | 7:9cd16581b578 | 150 | MaximInterfaceDevices_EXPORT Core::error_code decrementCounter(); |
IanBenzMaxim | 7:9cd16581b578 | 151 | |
IanBenzMaxim | 7:9cd16581b578 | 152 | /// Permanently disable the device. |
IanBenzMaxim | 7:9cd16581b578 | 153 | MaximInterfaceDevices_EXPORT Core::error_code disableDevice(); |
IanBenzMaxim | 7:9cd16581b578 | 154 | |
IanBenzMaxim | 7:9cd16581b578 | 155 | /// @brief Generate a new ECDSA public key from an existing private key. |
IanBenzMaxim | 7:9cd16581b578 | 156 | /// @param privateKeyPuf True if PUF is used as the private key. |
IanBenzMaxim | 7:9cd16581b578 | 157 | /// @param writeProtectEnable True to lock the key against further writes. |
IanBenzMaxim | 7:9cd16581b578 | 158 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 159 | generateEcc256KeyPair(bool privateKeyPuf, bool writeProtectEnable); |
IanBenzMaxim | 7:9cd16581b578 | 160 | |
IanBenzMaxim | 7:9cd16581b578 | 161 | /// @brief Read a block of random data from the RNG. |
IanBenzMaxim | 7:9cd16581b578 | 162 | /// @param[out] data Random data from RNG with length from 1 to 64. |
IanBenzMaxim | 7:9cd16581b578 | 163 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 164 | readRng(Core::span<uint_least8_t> data); |
IanBenzMaxim | 7:9cd16581b578 | 165 | |
IanBenzMaxim | 7:9cd16581b578 | 166 | MaximInterfaceDevices_EXPORT static const Core::error_category & |
IanBenzMaxim | 7:9cd16581b578 | 167 | errorCategory(); |
IanBenzMaxim | 7:9cd16581b578 | 168 | |
IanBenzMaxim | 7:9cd16581b578 | 169 | protected: |
IanBenzMaxim | 7:9cd16581b578 | 170 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 171 | runCommand(Core::span<const uint_least8_t> request, int delayTime, |
IanBenzMaxim | 7:9cd16581b578 | 172 | Core::span<uint_least8_t> & response); |
IanBenzMaxim | 7:9cd16581b578 | 173 | |
IanBenzMaxim | 7:9cd16581b578 | 174 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 175 | runCommand(Core::span<const uint_least8_t> request, int delayTime); |
IanBenzMaxim | 7:9cd16581b578 | 176 | |
IanBenzMaxim | 7:9cd16581b578 | 177 | private: |
IanBenzMaxim | 7:9cd16581b578 | 178 | Core::RunCommand doRunCommand; |
IanBenzMaxim | 7:9cd16581b578 | 179 | }; |
IanBenzMaxim | 7:9cd16581b578 | 180 | |
IanBenzMaxim | 7:9cd16581b578 | 181 | inline Core::error_code make_error_code(DS28E38::ErrorValue e) { |
IanBenzMaxim | 7:9cd16581b578 | 182 | return Core::error_code(e, DS28E38::errorCategory()); |
IanBenzMaxim | 7:9cd16581b578 | 183 | } |
IanBenzMaxim | 7:9cd16581b578 | 184 | |
IanBenzMaxim | 7:9cd16581b578 | 185 | /// @brief Read the device MAN ID using the Read Status command. |
IanBenzMaxim | 7:9cd16581b578 | 186 | /// @param ds28e38 Device to read. |
IanBenzMaxim | 7:9cd16581b578 | 187 | /// @param[out] manId Read MAN ID valid when operation is successful. |
IanBenzMaxim | 7:9cd16581b578 | 188 | MaximInterfaceDevices_EXPORT Core::error_code |
IanBenzMaxim | 7:9cd16581b578 | 189 | readManId(DS28E38 & ds28e38, Core::ManId::span manId); |
IanBenzMaxim | 7:9cd16581b578 | 190 | |
IanBenzMaxim | 7:9cd16581b578 | 191 | /// Format page authentication input data. |
IanBenzMaxim | 7:9cd16581b578 | 192 | class DS28E38::PageAuthenticationData { |
IanBenzMaxim | 7:9cd16581b578 | 193 | public: |
IanBenzMaxim | 7:9cd16581b578 | 194 | typedef Core::array_span<uint_least8_t, Core::RomId::size + 2 * Page::size + |
IanBenzMaxim | 7:9cd16581b578 | 195 | 1 + Core::ManId::size> |
IanBenzMaxim | 7:9cd16581b578 | 196 | Result; |
IanBenzMaxim | 7:9cd16581b578 | 197 | |
IanBenzMaxim | 7:9cd16581b578 | 198 | PageAuthenticationData() : result_() {} |
IanBenzMaxim | 7:9cd16581b578 | 199 | |
IanBenzMaxim | 7:9cd16581b578 | 200 | /// Formatted data result. |
IanBenzMaxim | 7:9cd16581b578 | 201 | Result::const_span result() const { return result_; } |
IanBenzMaxim | 7:9cd16581b578 | 202 | |
IanBenzMaxim | 7:9cd16581b578 | 203 | /// @name ROM ID |
IanBenzMaxim | 7:9cd16581b578 | 204 | /// @brief 1-Wire ROM ID of the device. |
IanBenzMaxim | 7:9cd16581b578 | 205 | /// @{ |
IanBenzMaxim | 7:9cd16581b578 | 206 | |
IanBenzMaxim | 7:9cd16581b578 | 207 | /// Get mutable ROM ID. |
IanBenzMaxim | 7:9cd16581b578 | 208 | Core::RomId::span romId() { |
IanBenzMaxim | 7:9cd16581b578 | 209 | return make_span(result_).subspan<romIdIdx, Core::RomId::size>(); |
IanBenzMaxim | 7:9cd16581b578 | 210 | } |
IanBenzMaxim | 7:9cd16581b578 | 211 | |
IanBenzMaxim | 7:9cd16581b578 | 212 | /// Get immutable ROM ID. |
IanBenzMaxim | 7:9cd16581b578 | 213 | Core::RomId::const_span romId() const { |
IanBenzMaxim | 7:9cd16581b578 | 214 | return const_cast<PageAuthenticationData &>(*this).romId(); |
IanBenzMaxim | 7:9cd16581b578 | 215 | } |
IanBenzMaxim | 7:9cd16581b578 | 216 | |
IanBenzMaxim | 7:9cd16581b578 | 217 | /// Set ROM ID. |
IanBenzMaxim | 7:9cd16581b578 | 218 | PageAuthenticationData & setRomId(Core::RomId::const_span romId) { |
IanBenzMaxim | 7:9cd16581b578 | 219 | copy(romId, this->romId()); |
IanBenzMaxim | 7:9cd16581b578 | 220 | return *this; |
IanBenzMaxim | 7:9cd16581b578 | 221 | } |
IanBenzMaxim | 7:9cd16581b578 | 222 | |
IanBenzMaxim | 7:9cd16581b578 | 223 | /// Set ROM ID for use in anonymous mode. |
IanBenzMaxim | 7:9cd16581b578 | 224 | MaximInterfaceDevices_EXPORT PageAuthenticationData & setAnonymousRomId(); |
IanBenzMaxim | 7:9cd16581b578 | 225 | |
IanBenzMaxim | 7:9cd16581b578 | 226 | /// @} |
IanBenzMaxim | 7:9cd16581b578 | 227 | |
IanBenzMaxim | 7:9cd16581b578 | 228 | /// @name Page |
IanBenzMaxim | 7:9cd16581b578 | 229 | /// @brief Data from a device memory page. |
IanBenzMaxim | 7:9cd16581b578 | 230 | /// @{ |
IanBenzMaxim | 7:9cd16581b578 | 231 | |
IanBenzMaxim | 7:9cd16581b578 | 232 | /// Get mutable page. |
IanBenzMaxim | 7:9cd16581b578 | 233 | Page::span page() { |
IanBenzMaxim | 7:9cd16581b578 | 234 | return make_span(result_).subspan<pageIdx, Page::size>(); |
IanBenzMaxim | 7:9cd16581b578 | 235 | } |
IanBenzMaxim | 7:9cd16581b578 | 236 | |
IanBenzMaxim | 7:9cd16581b578 | 237 | /// Get immutable page. |
IanBenzMaxim | 7:9cd16581b578 | 238 | Page::const_span page() const { |
IanBenzMaxim | 7:9cd16581b578 | 239 | return const_cast<PageAuthenticationData &>(*this).page(); |
IanBenzMaxim | 7:9cd16581b578 | 240 | } |
IanBenzMaxim | 7:9cd16581b578 | 241 | |
IanBenzMaxim | 7:9cd16581b578 | 242 | /// Set page. |
IanBenzMaxim | 7:9cd16581b578 | 243 | PageAuthenticationData & setPage(Page::const_span page) { |
IanBenzMaxim | 7:9cd16581b578 | 244 | copy(page, this->page()); |
IanBenzMaxim | 7:9cd16581b578 | 245 | return *this; |
IanBenzMaxim | 7:9cd16581b578 | 246 | } |
IanBenzMaxim | 7:9cd16581b578 | 247 | |
IanBenzMaxim | 7:9cd16581b578 | 248 | /// @} |
IanBenzMaxim | 7:9cd16581b578 | 249 | |
IanBenzMaxim | 7:9cd16581b578 | 250 | /// @name Challenge |
IanBenzMaxim | 7:9cd16581b578 | 251 | /// @brief Random challenge used to prevent replay attacks. |
IanBenzMaxim | 7:9cd16581b578 | 252 | /// @{ |
IanBenzMaxim | 7:9cd16581b578 | 253 | |
IanBenzMaxim | 7:9cd16581b578 | 254 | /// Get mutable Challenge. |
IanBenzMaxim | 7:9cd16581b578 | 255 | Page::span challenge() { |
IanBenzMaxim | 7:9cd16581b578 | 256 | return make_span(result_).subspan<challengeIdx, Page::size>(); |
IanBenzMaxim | 7:9cd16581b578 | 257 | } |
IanBenzMaxim | 7:9cd16581b578 | 258 | |
IanBenzMaxim | 7:9cd16581b578 | 259 | /// Get immutable Challenge. |
IanBenzMaxim | 7:9cd16581b578 | 260 | Page::const_span challenge() const { |
IanBenzMaxim | 7:9cd16581b578 | 261 | return const_cast<PageAuthenticationData &>(*this).challenge(); |
IanBenzMaxim | 7:9cd16581b578 | 262 | } |
IanBenzMaxim | 7:9cd16581b578 | 263 | |
IanBenzMaxim | 7:9cd16581b578 | 264 | /// Set Challenge. |
IanBenzMaxim | 7:9cd16581b578 | 265 | PageAuthenticationData & setChallenge(Page::const_span challenge) { |
IanBenzMaxim | 7:9cd16581b578 | 266 | copy(challenge, this->challenge()); |
IanBenzMaxim | 7:9cd16581b578 | 267 | return *this; |
IanBenzMaxim | 7:9cd16581b578 | 268 | } |
IanBenzMaxim | 7:9cd16581b578 | 269 | |
IanBenzMaxim | 7:9cd16581b578 | 270 | /// @} |
IanBenzMaxim | 7:9cd16581b578 | 271 | |
IanBenzMaxim | 7:9cd16581b578 | 272 | /// @name Page number |
IanBenzMaxim | 7:9cd16581b578 | 273 | /// @brief Number of the page to use data from. |
IanBenzMaxim | 7:9cd16581b578 | 274 | /// @{ |
IanBenzMaxim | 7:9cd16581b578 | 275 | |
IanBenzMaxim | 7:9cd16581b578 | 276 | /// Get page number. |
IanBenzMaxim | 7:9cd16581b578 | 277 | int pageNum() const { return result_[pageNumIdx]; } |
IanBenzMaxim | 7:9cd16581b578 | 278 | |
IanBenzMaxim | 7:9cd16581b578 | 279 | /// Set page number. |
IanBenzMaxim | 7:9cd16581b578 | 280 | PageAuthenticationData & setPageNum(int pageNum) { |
IanBenzMaxim | 7:9cd16581b578 | 281 | result_[pageNumIdx] = pageNum; |
IanBenzMaxim | 7:9cd16581b578 | 282 | return *this; |
IanBenzMaxim | 7:9cd16581b578 | 283 | } |
IanBenzMaxim | 7:9cd16581b578 | 284 | |
IanBenzMaxim | 7:9cd16581b578 | 285 | /// @} |
IanBenzMaxim | 7:9cd16581b578 | 286 | |
IanBenzMaxim | 7:9cd16581b578 | 287 | /// @name MAN ID |
IanBenzMaxim | 7:9cd16581b578 | 288 | /// @brief Manufacturer ID of the device. |
IanBenzMaxim | 7:9cd16581b578 | 289 | /// @{ |
IanBenzMaxim | 7:9cd16581b578 | 290 | |
IanBenzMaxim | 7:9cd16581b578 | 291 | /// Get mutable MAN ID. |
IanBenzMaxim | 7:9cd16581b578 | 292 | Core::ManId::span manId() { |
IanBenzMaxim | 7:9cd16581b578 | 293 | return make_span(result_).subspan<manIdIdx, Core::ManId::size>(); |
IanBenzMaxim | 7:9cd16581b578 | 294 | } |
IanBenzMaxim | 7:9cd16581b578 | 295 | |
IanBenzMaxim | 7:9cd16581b578 | 296 | /// Get immutable MAN ID. |
IanBenzMaxim | 7:9cd16581b578 | 297 | Core::ManId::const_span manId() const { |
IanBenzMaxim | 7:9cd16581b578 | 298 | return const_cast<PageAuthenticationData &>(*this).manId(); |
IanBenzMaxim | 7:9cd16581b578 | 299 | } |
IanBenzMaxim | 7:9cd16581b578 | 300 | |
IanBenzMaxim | 7:9cd16581b578 | 301 | /// Set MAN ID. |
IanBenzMaxim | 7:9cd16581b578 | 302 | PageAuthenticationData & setManId(Core::ManId::const_span manId) { |
IanBenzMaxim | 7:9cd16581b578 | 303 | copy(manId, this->manId()); |
IanBenzMaxim | 7:9cd16581b578 | 304 | return *this; |
IanBenzMaxim | 7:9cd16581b578 | 305 | } |
IanBenzMaxim | 7:9cd16581b578 | 306 | |
IanBenzMaxim | 7:9cd16581b578 | 307 | /// @} |
IanBenzMaxim | 7:9cd16581b578 | 308 | |
IanBenzMaxim | 7:9cd16581b578 | 309 | private: |
IanBenzMaxim | 7:9cd16581b578 | 310 | typedef Result::span::index_type index; |
IanBenzMaxim | 7:9cd16581b578 | 311 | |
IanBenzMaxim | 7:9cd16581b578 | 312 | static const index romIdIdx = 0; |
IanBenzMaxim | 7:9cd16581b578 | 313 | static const index pageIdx = romIdIdx + Core::RomId::size; |
IanBenzMaxim | 7:9cd16581b578 | 314 | static const index challengeIdx = pageIdx + Page::size; |
IanBenzMaxim | 7:9cd16581b578 | 315 | static const index pageNumIdx = challengeIdx + Page::size; |
IanBenzMaxim | 7:9cd16581b578 | 316 | static const index manIdIdx = pageNumIdx + 1; |
IanBenzMaxim | 7:9cd16581b578 | 317 | |
IanBenzMaxim | 7:9cd16581b578 | 318 | Result::array result_; |
IanBenzMaxim | 7:9cd16581b578 | 319 | }; |
IanBenzMaxim | 7:9cd16581b578 | 320 | |
IanBenzMaxim | 7:9cd16581b578 | 321 | } // namespace MaximInterfaceDevices |
IanBenzMaxim | 7:9cd16581b578 | 322 | |
IanBenzMaxim | 7:9cd16581b578 | 323 | #endif |