Async port to windows

Reviewed-by: Rich Salz <rsalz@openssl.org>

4 files changed, 342 insertions, 0 deletions

diff --git a/crypto/async/arch/async_posix.c b/crypto/async/arch/async_posix.c
new file mode 100644
index 0000000000..281f25fdaf
--- /dev/null
+++ b/crypto/async/arch/async_posix.c
@@ -0,0 +1,85 @@
+/* crypto/async/arch/async_posix.c */
+/*
+ * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
+ */
+/* ====================================================================
+ * Copyright (c) 2015 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#include "../async_locl.h"
+#include <openssl/async.h>
+
+#ifdef ASYNC_SYSV
+# include <stddef.h>
+# include <ucontext.h>
+# include <openssl/crypto.h>
+# include <openssl/async.h>
+
+__thread ASYNC_CTX *sysvctx;
+
+int ASYNC_FIBRE_init(ASYNC_FIBRE *fibre)
+{
+    void *stack = NULL;
+
+    if (!(stack = OPENSSL_malloc(SIGSTKSZ))) {
+        return 0;
+    }
+
+    fibre->fibre.uc_stack.ss_sp = stack;
+    fibre->fibre.uc_stack.ss_size = SIGSTKSZ;
+    fibre->fibre.uc_link = NULL;
+
+    return 1;
+}
+
+void ASYNC_FIBRE_free(ASYNC_FIBRE *fibre)
+{
+    if (fibre->fibre.uc_stack.ss_sp)
+        OPENSSL_free(fibre->fibre.uc_stack.ss_sp);
+}
+#endif
diff --git a/crypto/async/arch/async_posix.h b/crypto/async/arch/async_posix.h
new file mode 100644
index 0000000000..373ad1b934
--- /dev/null
+++ b/crypto/async/arch/async_posix.h
@@ -0,0 +1,89 @@
+/* crypto/async/arch/async_posix.h */
+/*
+ * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
+ */
+/* ====================================================================
+ * Copyright (c) 2015 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+#include <openssl/e_os2.h>
+
+#ifdef OPENSSL_SYS_UNIX
+
+# include <unistd.h>
+
+# if _POSIX_VERSION >= 200112L
+
+#  define ASYNC_SYSV
+#  define ASYNC_ARCH
+
+#  include <ucontext.h>
+
+extern __thread ASYNC_CTX *sysvctx;
+
+typedef struct async_fibre_st {
+    ucontext_t fibre;
+} ASYNC_FIBRE;
+
+#  define ASYNC_set_ctx(nctx)             (sysvctx = (nctx))
+#  define ASYNC_get_ctx()                 (sysvctx)
+#  define ASYNC_FIBRE_swapcontext(o,n,r) \
+            ((r)? \
+                !swapcontext(&(o)->fibre, &(n)->fibre) \
+            : \
+                !setcontext(&(n)->fibre))
+#  define ASYNC_FIBRE_makecontext(c) \
+            (ASYNC_FIBRE_init(c) \
+            && !getcontext(&(c)->fibre) \
+            && (makecontext(&(c)->fibre, ASYNC_start_func, 0), 1))
+#  define ASYNC_FIBRE_init_dispatcher(d)
+
+int ASYNC_FIBRE_init(ASYNC_FIBRE *fibre);
+void ASYNC_FIBRE_free(ASYNC_FIBRE *fibre);
+
+# endif
+#endif
diff --git a/crypto/async/arch/async_win.c b/crypto/async/arch/async_win.c
new file mode 100644
index 0000000000..23447b068d
--- /dev/null
+++ b/crypto/async/arch/async_win.c
@@ -0,0 +1,84 @@
+/* crypto/async/arch/async_win.c */
+/*
+ * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
+ */
+/* ====================================================================
+ * Copyright (c) 2015 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#include "async_win.h"
+
+#ifdef ASYNC_WIN
+
+# include <windows.h>
+# include "cryptlib.h"
+
+void ASYNC_start_func(void);
+
+int ASYNC_FIBRE_init_dispatcher(ASYNC_FIBRE *fibre)
+{
+    LPVOID dispatcher;
+
+    dispatcher =
+        (LPVOID) CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_DISPATCH);
+    if (!dispatcher) {
+        fibre->fibre = ConvertThreadToFiber(NULL);
+        CRYPTO_set_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_DISPATCH,
+                                (void *)fibre->fibre);
+    } else {
+        fibre->fibre = dispatcher;
+    }
+    return 1;
+}
+
+VOID CALLBACK ASYNC_start_func_win(PVOID unused)
+{
+    ASYNC_start_func();
+}
+
+#endif
diff --git a/crypto/async/arch/async_win.h b/crypto/async/arch/async_win.h
new file mode 100644
index 0000000000..6c2a31007d
--- /dev/null
+++ b/crypto/async/arch/async_win.h
@@ -0,0 +1,84 @@
+/* crypto/async/arch/async_win.h */
+/*
+ * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
+ */
+/* ====================================================================
+ * Copyright (c) 2015 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#include <openssl/async.h>
+
+/*
+ * This is the same detection used in cryptlib to set up the thread local
+ * storage that we depend on, so just copy that
+ */
+#if defined(_WIN32) || defined(__CYGWIN__)
+# define ASYNC_WIN
+# define ASYNC_ARCH
+
+# include <windows.h>
+# include "cryptlib.h"
+
+typedef struct async_fibre_st {
+    LPVOID fibre;
+} ASYNC_FIBRE;
+
+# define ASYNC_set_ctx(nctx) \
+        (CRYPTO_set_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_CTX, (void *)(nctx)))
+# define ASYNC_get_ctx() \
+        ((ASYNC_CTX *)CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_CTX))
+# define ASYNC_FIBRE_swapcontext(o,n,r) \
+        (SwitchToFiber((n)->fibre), 1)
+# define ASYNC_FIBRE_makecontext(c) \
+        ((c)->fibre = CreateFiber(0, ASYNC_start_func_win, 0))
+# define ASYNC_FIBRE_free(f)             (DeleteFiber((f)->fibre))
+
+int ASYNC_FIBRE_init_dispatcher(ASYNC_FIBRE *fibre);
+VOID CALLBACK ASYNC_start_func_win(PVOID unused);
+
+#endif