2005-01-25 Sebastien Pouliot <sebastien@ximian.com>

[mono.git] / mono / mini / declsec.c

diff --git a/mono/mini/declsec.c b/mono/mini/declsec.c
index 94ffff27752ea3f9310d4cdd70f945030e8008fd..0f5467e971893ee67ff4847282f3eefed637920a 100644 (file)
--- a/mono/mini/declsec.c
+++ b/mono/mini/declsec.c
@@ -4,7 +4,7 @@
  * Author:
  *     Sebastien Pouliot  <sebastien@ximian.com>
  *
- * Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+ * Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
  */
 
 #include "declsec.h"
@@ -16,9 +16,13 @@
 MonoBoolean
 mono_method_has_declsec (MonoMethod *method)
 {
-       if (method->wrapper_type != MONO_WRAPPER_NONE)
+       if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
+               method = mono_marshal_method_from_wrapper (method);
+               if (!method)
+                       return FALSE;
+       } else if (method->wrapper_type != MONO_WRAPPER_NONE)
                return FALSE;
-               
+
        if ((method->klass->flags & TYPE_ATTRIBUTE_HAS_SECURITY) || (method->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
                /* ignore static constructors */
                if (strcmp (method->name, ".cctor"))
@@ -26,3 +30,67 @@ mono_method_has_declsec (MonoMethod *method)
        }
        return FALSE;
 }
+
+
+/*
+ * Fill actions for the specific index (which may either be an encoded class token or
+ * an encoded method token) from the metadata image.
+ * Returns TRUE if some actions requiring code generation are present, FALSE otherwise.
+ */
+void
+mono_declsec_cache_stack_modifiers (MonoJitInfo *jinfo)
+{
+       /* first find the stack modifiers applied to the method */
+       guint32 flags = mono_declsec_flags_from_method (jinfo->method);
+       jinfo->cas_method_assert = (flags & MONO_DECLSEC_FLAG_ASSERT) != 0;
+       jinfo->cas_method_deny = (flags & MONO_DECLSEC_FLAG_DENY) != 0;
+       jinfo->cas_method_permitonly = (flags & MONO_DECLSEC_FLAG_PERMITONLY) != 0;
+
+       /* then find the stack modifiers applied to the class */
+       flags = mono_declsec_flags_from_class (jinfo->method->klass);
+       jinfo->cas_class_assert = (flags & MONO_DECLSEC_FLAG_ASSERT) != 0;
+       jinfo->cas_class_deny = (flags & MONO_DECLSEC_FLAG_DENY) != 0;
+       jinfo->cas_class_permitonly = (flags & MONO_DECLSEC_FLAG_PERMITONLY) != 0;
+}
+
+
+MonoSecurityFrame*
+mono_declsec_create_frame (MonoDomain *domain, MonoJitInfo *jinfo)
+{
+       MonoSecurityFrame *frame = (MonoSecurityFrame*) mono_object_new (domain, mono_defaults.runtimesecurityframe_class);
+
+       if (!jinfo->cas_inited) {
+               if (mono_method_has_declsec (jinfo->method)) {
+                       /* Cache the stack modifiers into the MonoJitInfo structure to speed up future stack walks */
+                       mono_declsec_cache_stack_modifiers (jinfo);
+               }
+               jinfo->cas_inited = TRUE;
+       }
+
+       frame->method = mono_method_get_object (domain, jinfo->method, NULL);
+
+       /* stack modifiers on methods have priority on (i.e. replaces) modifiers on class */
+
+       if (jinfo->cas_method_assert) {
+               mono_declsec_get_method_action (jinfo->method, SECURITY_ACTION_ASSERT, &frame->assert);
+       } else if (jinfo->cas_class_assert) {
+               mono_declsec_get_class_action (jinfo->method->klass, SECURITY_ACTION_ASSERT, &frame->assert);
+       }
+
+       if (jinfo->cas_method_deny) {
+               mono_declsec_get_method_action (jinfo->method, SECURITY_ACTION_DENY, &frame->deny);
+       } else if (jinfo->cas_class_deny) {
+               mono_declsec_get_class_action (jinfo->method->klass, SECURITY_ACTION_DENY, &frame->deny);
+       }
+
+       if (jinfo->cas_method_permitonly) {
+               mono_declsec_get_method_action (jinfo->method, SECURITY_ACTION_PERMITONLY, &frame->permitonly);
+       } else if (jinfo->cas_class_permitonly) {
+               mono_declsec_get_class_action (jinfo->method->klass, SECURITY_ACTION_PERMITONLY, &frame->permitonly);
+       }
+
+       /* g_warning ("FRAME %s A(%p,%d) D(%p,%d) PO(%p,%d)", 
+       jinfo->method->name, frame->assert.blob, frame->assert.size, frame->deny.blob, frame->deny.size, frame->permitonly.blob,frame->permitonly.size); */
+
+       return frame;
+}