2 // System.Security.SecurityFrame.cs
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 using System.Collections;
30 using System.Globalization;
31 using System.Reflection;
32 using System.Runtime.CompilerServices;
33 using System.Security.Permissions;
35 namespace System.Security {
37 // Must match MonoDeclSecurityEntry in /mono/metadata/reflection.h
38 internal struct RuntimeDeclSecurityEntry {
44 // Must match MonoSecurityFrame in /mono/mini/declsec.h
45 internal class RuntimeSecurityFrame {
46 public AppDomain domain;
47 public MethodInfo method;
48 public RuntimeDeclSecurityEntry assert;
49 public RuntimeDeclSecurityEntry deny;
50 public RuntimeDeclSecurityEntry permitonly;
53 internal struct SecurityFrame {
55 private AppDomain _domain;
56 private MethodInfo _method;
57 private PermissionSet _assert;
58 private PermissionSet _deny;
59 private PermissionSet _permitonly;
61 [MethodImplAttribute (MethodImplOptions.InternalCall)]
62 extern static RuntimeSecurityFrame _GetSecurityFrame (int skip);
64 [MethodImplAttribute (MethodImplOptions.InternalCall)]
65 extern static Array _GetSecurityStack (int skip);
67 internal SecurityFrame (RuntimeSecurityFrame frame)
74 InitFromRuntimeFrame (frame);
77 internal SecurityFrame (int skip)
85 InitFromRuntimeFrame (_GetSecurityFrame (skip + 2));
87 // TODO - add the imperative informations into the frame
90 // Note: SecurityManager.Decode implements a cache - so not every call
91 // ends up making an icall
92 internal void InitFromRuntimeFrame (RuntimeSecurityFrame frame)
94 _domain = frame.domain;
95 _method = frame.method;
97 if (frame.assert.size > 0) {
98 _assert = SecurityManager.Decode (frame.assert.blob, frame.assert.size);
100 if (frame.deny.size > 0) {
101 _deny = SecurityManager.Decode (frame.deny.blob, frame.deny.size);
103 if (frame.permitonly.size > 0) {
104 _permitonly = SecurityManager.Decode (frame.permitonly.blob, frame.permitonly.size);
108 public Assembly Assembly {
109 get { return _method.ReflectedType.Assembly; }
112 public AppDomain Domain {
113 get { return _domain; }
116 public MethodInfo Method {
117 get { return _method; }
120 public PermissionSet Assert {
121 get { return _assert; }
124 public PermissionSet Deny {
125 get { return _deny; }
128 public PermissionSet PermitOnly {
129 get { return _permitonly; }
132 public bool HasStackModifiers {
133 get { return ((_assert != null) || (_deny != null) || (_permitonly != null)); }
136 public bool Equals (SecurityFrame sf)
138 if (!Object.ReferenceEquals (_domain, sf.Domain))
140 if (Assembly.ToString () != sf.Assembly.ToString ())
142 if (Method.ToString () != sf.Method.ToString ())
145 if ((_assert != null) && !_assert.Equals (sf.Assert))
147 if ((_deny != null) && !_deny.Equals (sf.Deny))
149 if ((_permitonly != null) && !_permitonly.Equals (sf.PermitOnly))
155 static public ArrayList GetStack (int skipFrames)
157 Array stack = _GetSecurityStack (skipFrames+2);
158 ArrayList al = new ArrayList ();
159 for (int i = 0; i < stack.Length; i++) {
160 object o = stack.GetValue (i);
161 // null are unused slots allocated in the runtime
164 al.Add (new SecurityFrame ((RuntimeSecurityFrame)o));