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java.lang.Object
   |
   +----java.lang.SecurityManager
           |
           +----edu.utah.janos.ants.ants.NodeSecurityManager

Summary

class  NodeSecurityManager
     extends java.lang.SecurityManager
{
          // Fields 1
     private Class[] mediators;

          // Constructors 1
     protected NodeSecurityManager();

          // Methods 3
     void addMediator(Class);
     void checkCapsule();
     void checkCapsule(int);
}

Implements node security checks to constrain capsule access. Access to this class of offered to the Node via package protection.

Author:

David Wetherall

Fields

· mediators

Summary  |  Top

   private Class[] mediators

List of classes that may mediate capsule access XXX Should this be a Vector?

Constructors

· NodeSecurityManager

Summary  |  Top

   protected NodeSecurityManager() 

Construct a fresh node security manager with no restrictions

   void addMediator(Class cl) 

Adds a class to the list of classes that mediate capsule access

This is package access only.

   void checkCapsule() 

Checks that, if an untrusted capsule call reached here, then the call site at which checkCapsule() was invoked passed through one of the known mediator classes. Assumes that all untrusted code is classloaded.

See Also: checkCapsule

   void checkCapsule(int stackbase) 

aSame as checkCapsule(), but begins the search stackbase frames further up the stack.

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