Files
AnyPS5/core/libs/tests/GuestLibreSsl3KeyReference.cpp
T

69 lines
2.6 KiB
C++

#include "prx/libSceLibreSsl3/libSceLibreSsl3.hpp"
#include <array>
#include <atomic>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <limits>
#include <thread>
static void Require(bool condition, const char* message) {
if (!condition) {
std::fprintf(stderr, "%s\n", message);
std::abort();
}
}
template<class TKey, class TRetain>
static void CheckKey(TRetain retain, std::size_t referenceOffset) {
struct GuardedKey {
std::array<std::uint64_t, 2> before;
TKey key;
std::array<std::uint64_t, 2> after;
} guarded;
for (std::int32_t initial : {-2, 0, 1, 37, std::numeric_limits<std::int32_t>::max() - 1}) {
std::memset(&guarded, 0xA5, sizeof(guarded));
guarded.key.references = initial;
std::array<unsigned char, sizeof(guarded)> expected;
std::memcpy(expected.data(), &guarded, sizeof(guarded));
const std::int32_t next = initial + 1;
std::memcpy(expected.data() + 16 + referenceOffset, &next, sizeof(next));
Require(retain(&guarded.key) == (next > 1), "retain return value");
Require(std::memcmp(&guarded, expected.data(), sizeof(guarded)) == 0, "retain changed bytes outside reference count");
}
std::memset(&guarded, 0x5A, sizeof(guarded));
guarded.key.references = 1;
std::array<unsigned char, sizeof(guarded)> expected;
std::memcpy(expected.data(), &guarded, sizeof(guarded));
for (int index = 0; index < 32; ++index)
Require(retain(&guarded.key) == 1, "repeated retain failed");
Require(guarded.key.references == 33, "repeated retain count");
guarded.key.references = 1;
std::atomic<bool> start = false;
std::array<std::thread, 4> threads;
for (auto& thread : threads) {
thread = std::thread([&] {
while (!start.load())
std::this_thread::yield();
for (int index = 0; index < 1000; ++index)
Require(retain(&guarded.key) == 1, "concurrent retain failed");
});
}
start = true;
for (auto& thread : threads)
thread.join();
const std::int32_t finalCount = 4001;
std::memcpy(expected.data() + 16 + referenceOffset, &finalCount, sizeof(finalCount));
Require(std::memcmp(&guarded, expected.data(), sizeof(guarded)) == 0, "concurrent count or adjacent bytes changed");
}
int main(int argc, char** argv) {
if (argc == 1 || std::strcmp(argv[1], "evp") == 0)
CheckKey<LibreSsl3EvpPkey>(EVP_PKEY_up_ref_nid_postfix, 4);
if (argc == 1 || std::strcmp(argv[1], "ec") == 0)
CheckKey<LibreSsl3EcKey>(EC_KEY_up_ref_nid_postfix, 48);
return 0;
}