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68 lines
2.2 KiB
68 lines
2.2 KiB
#ifndef ANDROID_HIDL_TOKEN_V1_0_TOKENMANAGER_H |
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#define ANDROID_HIDL_TOKEN_V1_0_TOKENMANAGER_H |
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#include <android/hidl/token/1.0/ITokenManager.h> |
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#include <chrono> |
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#include <hidl/MQDescriptor.h> |
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#include <hidl/Status.h> |
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#include <unordered_map> |
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#include <array> |
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namespace android { |
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namespace hidl { |
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namespace token { |
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namespace V1_0 { |
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namespace implementation { |
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using ::android::hidl::base::V1_0::IBase; |
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using ::android::hidl::token::V1_0::ITokenManager; |
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using ::android::hardware::hidl_array; |
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using ::android::hardware::hidl_string; |
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using ::android::hardware::hidl_vec; |
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using ::android::hardware::Return; |
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using ::android::hardware::Void; |
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using ::android::sp; |
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struct TokenManager : public ITokenManager { |
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TokenManager(); |
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// Methods from ::android::hidl::token::V1_0::ITokenManager follow. |
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Return<void> createToken(const sp<IBase>& store, createToken_cb hidl_cb) override; |
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Return<bool> unregister(const hidl_vec<uint8_t> &token) override; |
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Return<sp<IBase>> get(const hidl_vec<uint8_t> &token) override; |
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private: |
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static constexpr uint64_t ID_SIZE = sizeof(uint64_t) / sizeof(uint8_t); |
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static constexpr uint64_t KEY_SIZE = 16; |
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static constexpr uint64_t TOKEN_ID_NONE = 0; |
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static bool constantTimeCompare(const hidl_vec<uint8_t> &t1, const hidl_vec<uint8_t> &t2); |
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static hidl_vec<uint8_t> getToken(const uint64_t id, const uint8_t *hmac, uint64_t hmacSize); |
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static uint64_t getTokenId(const hidl_vec<uint8_t> &token); |
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std::array<uint8_t, KEY_SIZE> mKey; |
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struct TokenInterface { |
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sp<IBase> interface; |
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hidl_vec<uint8_t> token; // First eight bytes are tokenId. Remaining bytes are hmac. |
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}; |
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TokenInterface generateToken(const sp<IBase> &interface); |
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// verifies token, returns iterator into mMap |
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std::unordered_map<uint64_t, TokenInterface>::const_iterator |
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lookupToken(const hidl_vec<uint8_t> &token); |
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std::unordered_map<uint64_t, TokenInterface> mMap; // map getTokenId(i.token) -> i |
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uint64_t mTokenIndex = TOKEN_ID_NONE; // last token index |
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}; |
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} // namespace implementation |
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} // namespace V1_0 |
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} // namespace token |
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} // namespace hidl |
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} // namespace android |
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#endif // ANDROID_HIDL_TOKEN_V1_0_TOKENMANAGER_H
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