2 * declsec.c: Declarative Security support
5 * Sebastien Pouliot <sebastien@ximian.com>
7 * Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
13 * Does the methods (or it's class) as any declarative security attribute ?
14 * Is so are they applicable ? (e.g. static class constructor)
17 mono_method_has_declsec (MonoMethod *method)
19 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
20 method = mono_marshal_method_from_wrapper (method);
23 } else if (method->wrapper_type != MONO_WRAPPER_NONE)
26 if ((method->klass->flags & TYPE_ATTRIBUTE_HAS_SECURITY) || (method->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
27 /* ignore static constructors */
28 if (strcmp (method->name, ".cctor"))
36 * Fill actions for the specific index (which may either be an encoded class token or
37 * an encoded method token) from the metadata image.
38 * Returns TRUE if some actions requiring code generation are present, FALSE otherwise.
41 mono_declsec_cache_stack_modifiers (MonoJitInfo *jinfo)
43 /* first find the stack modifiers applied to the method */
44 guint32 flags = mono_declsec_flags_from_method (jinfo->method);
45 jinfo->cas_method_assert = (flags & MONO_DECLSEC_FLAG_ASSERT) != 0;
46 jinfo->cas_method_deny = (flags & MONO_DECLSEC_FLAG_DENY) != 0;
47 jinfo->cas_method_permitonly = (flags & MONO_DECLSEC_FLAG_PERMITONLY) != 0;
49 /* then find the stack modifiers applied to the class */
50 flags = mono_declsec_flags_from_class (jinfo->method->klass);
51 jinfo->cas_class_assert = (flags & MONO_DECLSEC_FLAG_ASSERT) != 0;
52 jinfo->cas_class_deny = (flags & MONO_DECLSEC_FLAG_DENY) != 0;
53 jinfo->cas_class_permitonly = (flags & MONO_DECLSEC_FLAG_PERMITONLY) != 0;
58 mono_declsec_create_frame (MonoDomain *domain, MonoJitInfo *jinfo)
60 MonoSecurityFrame *frame = (MonoSecurityFrame*) mono_object_new (domain, mono_defaults.runtimesecurityframe_class);
62 if (!jinfo->cas_inited) {
63 if (mono_method_has_declsec (jinfo->method)) {
64 /* Cache the stack modifiers into the MonoJitInfo structure to speed up future stack walks */
65 mono_declsec_cache_stack_modifiers (jinfo);
67 jinfo->cas_inited = TRUE;
70 frame->method = mono_method_get_object (domain, jinfo->method, NULL);
72 /* stack modifiers on methods have priority on (i.e. replaces) modifiers on class */
74 if (jinfo->cas_method_assert) {
75 mono_declsec_get_method_action (jinfo->method, SECURITY_ACTION_ASSERT, &frame->assert);
76 } else if (jinfo->cas_class_assert) {
77 mono_declsec_get_class_action (jinfo->method->klass, SECURITY_ACTION_ASSERT, &frame->assert);
80 if (jinfo->cas_method_deny) {
81 mono_declsec_get_method_action (jinfo->method, SECURITY_ACTION_DENY, &frame->deny);
82 } else if (jinfo->cas_class_deny) {
83 mono_declsec_get_class_action (jinfo->method->klass, SECURITY_ACTION_DENY, &frame->deny);
86 if (jinfo->cas_method_permitonly) {
87 mono_declsec_get_method_action (jinfo->method, SECURITY_ACTION_PERMITONLY, &frame->permitonly);
88 } else if (jinfo->cas_class_permitonly) {
89 mono_declsec_get_class_action (jinfo->method->klass, SECURITY_ACTION_PERMITONLY, &frame->permitonly);
92 /* g_warning ("FRAME %s A(%p,%d) D(%p,%d) PO(%p,%d)",
93 jinfo->method->name, frame->assert.blob, frame->assert.size, frame->deny.blob, frame->deny.size, frame->permitonly.blob,frame->permitonly.size); */