aboutsummaryrefslogtreecommitdiffstats
path: root/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/threads_win.c
diff options
context:
space:
mode:
authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/threads_win.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
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.c171
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