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;
36 namespace System.Security {
38 // Must match MonoDeclSecurityEntry in /mono/metadata/reflection.h
39 internal struct RuntimeDeclSecurityEntry {
45 // Must match MonoSecurityFrame in /mono/mini/declsec.h
46 internal class RuntimeSecurityFrame {
47 public AppDomain domain;
48 public MethodInfo method;
49 public RuntimeDeclSecurityEntry assert;
50 public RuntimeDeclSecurityEntry deny;
51 public RuntimeDeclSecurityEntry permitonly;
54 internal struct SecurityFrame {
56 private AppDomain _domain;
57 private MethodInfo _method;
58 private PermissionSet _assert;
59 private PermissionSet _deny;
60 private PermissionSet _permitonly;
62 [MethodImplAttribute (MethodImplOptions.InternalCall)]
63 extern static RuntimeSecurityFrame _GetSecurityFrame (int skip);
65 [MethodImplAttribute (MethodImplOptions.InternalCall)]
66 extern static Array _GetSecurityStack (int skip);
68 internal SecurityFrame (RuntimeSecurityFrame frame)
75 InitFromRuntimeFrame (frame);
78 internal SecurityFrame (int skip)
86 InitFromRuntimeFrame (_GetSecurityFrame (skip + 2));
88 // TODO - add the imperative informations into the frame
91 // Note: SecurityManager.Decode implements a cache - so not every call
92 // ends up making an icall
93 internal void InitFromRuntimeFrame (RuntimeSecurityFrame frame)
95 _domain = frame.domain;
96 _method = frame.method;
98 if (frame.assert.size > 0) {
99 _assert = SecurityManager.Decode (frame.assert.blob, frame.assert.size);
101 if (frame.deny.size > 0) {
102 _deny = SecurityManager.Decode (frame.deny.blob, frame.deny.size);
104 if (frame.permitonly.size > 0) {
105 _permitonly = SecurityManager.Decode (frame.permitonly.blob, frame.permitonly.size);
109 public Assembly Assembly {
110 get { return _method.ReflectedType.Assembly; }
113 public AppDomain Domain {
114 get { return _domain; }
117 public MethodInfo Method {
118 get { return _method; }
121 public PermissionSet Assert {
122 get { return _assert; }
125 public PermissionSet Deny {
126 get { return _deny; }
129 public PermissionSet PermitOnly {
130 get { return _permitonly; }
133 public bool HasStackModifiers {
134 get { return ((_assert != null) || (_deny != null) || (_permitonly != null)); }
137 public bool Equals (SecurityFrame sf)
139 if (!Object.ReferenceEquals (_domain, sf.Domain))
141 if (Assembly.ToString () != sf.Assembly.ToString ())
143 if (Method.ToString () != sf.Method.ToString ())
146 if ((_assert != null) && !_assert.Equals (sf.Assert))
148 if ((_deny != null) && !_deny.Equals (sf.Deny))
150 if ((_permitonly != null) && !_permitonly.Equals (sf.PermitOnly))
156 public override string ToString ()
158 StringBuilder sb = new StringBuilder ();
159 sb.AppendFormat ("Frame: {0}{1}", _method, Environment.NewLine);
160 sb.AppendFormat ("\tAppDomain: {0}{1}", Domain, Environment.NewLine);
161 sb.AppendFormat ("\tAssembly: {0}{1}", Assembly, Environment.NewLine);
163 sb.AppendFormat ("\tAssert: {0}{1}", _assert, Environment.NewLine);
165 sb.AppendFormat ("\tDeny: {0}{1}", _deny, Environment.NewLine);
166 if (_permitonly != null)
167 sb.AppendFormat ("\tPermitOnly: {0}{1}", _permitonly, Environment.NewLine);
168 return sb.ToString ();
171 static public ArrayList GetStack (int skipFrames)
173 Array stack = _GetSecurityStack (skipFrames+2);
174 ArrayList al = new ArrayList ();
175 for (int i = 0; i < stack.Length; i++) {
176 object o = stack.GetValue (i);
177 // null are unused slots allocated in the runtime
180 al.Add (new SecurityFrame ((RuntimeSecurityFrame)o));