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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/threads_win.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/threads_win.c')
-rw-r--r-- | roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/threads_win.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/threads_win.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/threads_win.c new file mode 100644 index 000000000..83dccb84f --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/threads_win.c @@ -0,0 +1,171 @@ +/* + * Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#if defined(_WIN32) +# include <windows.h> +#endif + +#include <openssl/crypto.h> + +#if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG) && defined(OPENSSL_SYS_WINDOWS) + +CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void) +{ + CRYPTO_RWLOCK *lock; + + if ((lock = OPENSSL_zalloc(sizeof(CRITICAL_SECTION))) == NULL) { + /* Don't set error, to avoid recursion blowup. */ + return NULL; + } + +# if !defined(_WIN32_WCE) + /* 0x400 is the spin count value suggested in the documentation */ + if (!InitializeCriticalSectionAndSpinCount(lock, 0x400)) { + OPENSSL_free(lock); + return NULL; + } +# else + InitializeCriticalSection(lock); +# endif + + return lock; +} + +int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock) +{ + EnterCriticalSection(lock); + return 1; +} + +int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock) +{ + EnterCriticalSection(lock); + return 1; +} + +int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock) +{ + LeaveCriticalSection(lock); + return 1; +} + +void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock) +{ + if (lock == NULL) + return; + + DeleteCriticalSection(lock); + OPENSSL_free(lock); + + return; +} + +# define ONCE_UNINITED 0 +# define ONCE_ININIT 1 +# define ONCE_DONE 2 + +/* + * We don't use InitOnceExecuteOnce because that isn't available in WinXP which + * we still have to support. + */ +int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void)) +{ + LONG volatile *lock = (LONG *)once; + LONG result; + + if (*lock == ONCE_DONE) + return 1; + + do { + result = InterlockedCompareExchange(lock, ONCE_ININIT, ONCE_UNINITED); + if (result == ONCE_UNINITED) { + init(); + *lock = ONCE_DONE; + return 1; + } + } while (result == ONCE_ININIT); + + return (*lock == ONCE_DONE); +} + +int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *)) +{ + *key = TlsAlloc(); + if (*key == TLS_OUT_OF_INDEXES) + return 0; + + return 1; +} + +void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key) +{ + DWORD last_error; + void *ret; + + /* + * TlsGetValue clears the last error even on success, so that callers may + * distinguish it successfully returning NULL or failing. It is documented + * to never fail if the argument is a valid index from TlsAlloc, so we do + * not need to handle this. + * + * However, this error-mangling behavior interferes with the caller's use of + * GetLastError. In particular SSL_get_error queries the error queue to + * determine whether the caller should look at the OS's errors. To avoid + * destroying state, save and restore the Windows error. + * + * https://msdn.microsoft.com/en-us/library/windows/desktop/ms686812(v=vs.85).aspx + */ + last_error = GetLastError(); + ret = TlsGetValue(*key); + SetLastError(last_error); + return ret; +} + +int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val) +{ + if (TlsSetValue(*key, val) == 0) + return 0; + + return 1; +} + +int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key) +{ + if (TlsFree(*key) == 0) + return 0; + + return 1; +} + +CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void) +{ + return GetCurrentThreadId(); +} + +int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b) +{ + return (a == b); +} + +int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock) +{ + *ret = (int)InterlockedExchangeAdd((long volatile *)val, (long)amount) + amount; + return 1; +} + +int openssl_init_fork_handlers(void) +{ + return 0; +} + +int openssl_get_fork_id(void) +{ + return 0; +} +#endif |