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Use Reporting Services security policy files

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Reporting Services stores component security policy information in three configuration files that are copied to the file system during setup. These configuration files can contain a combination of internal-use and user-defined security policies for code assemblies in Reporting Services. The three configuration files correspond to three securable components in Reporting Services: The report server and Windows service, the Report Manager Web application, and the Report Designer preview window.

Note

There are two preview modes for Report Designer: the preview tab and the pop-up preview window that is launched when your Report Project is started in DebugLocal mode. The Preview tab is not a securable component and does not apply security policy settings. The preview window is meant to simulate the report server functionality and therefore has a policy configuration file that you or an administrator must modify to use custom assemblies and custom extensions in Report Designer.

The security policy configuration files contain security class information, some default named permission sets, and the code groups for assemblies in Reporting Services. The policy configuration files of Reporting Services are similar to the Security.config file that determines the code group hierarchy and permission sets associated with machine and enterprise level policies in the .NET Framework. The location of this file is C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.

Policy files in Reporting Services

The following table lists the policy configuration files in Reporting Services, their locations (assuming a default installation), and their respective functions.

File name Location (default installation) Description
rssrvpolicy.config C:\Program Files\Microsoft SQL Server\MSRS10_50.MSSQLSERVER\Reporting Services\ReportServer The report server policy configuration file. These security policies primarily affect report expressions and custom assemblies once a report is deployed to a report server. This policy file also affects custom data, delivery, rendering and security extensions deployed to the report server.
rsmgrpolicy.config C:\Program Files\Microsoft SQL Server\MSRS10_50.MSSQLSERVER\Reporting Services\ReportManager Report Manager policy configuration file. These security policies affect all assemblies that extend Report Manager; for example, subscription user interface extensions for custom delivery.
rspreviewpolicy.config C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies The Report Designer stand-alone preview policy configuration file. These security policies affect custom assemblies and report expressions that are used in reports during preview and development. These policies also affect custom extensions that are deployed to Report Designer, such as data processing extensions.

Modify configuration files

Configuration settings are specified as either XML elements or attributes. If you understand XML and configuration files, you can use a text or code editor to modify user-definable settings. Security configuration files contain information about the code group hierarchy and permission sets associated with a policy level in Reporting Services. You should use the .NET Framework Configuration Utility (Mscorcfg.msc) or Code Access Security Policy Utility (Caspol.exe) to modify security policies in the Security.config file first. This step ensures that policy changes correspond to valid XML configuration elements for policy files. Once you do that, you can cut and paste the new code groups and permission sets from Security.config to the policy file for the component to which you're adding code permissions.

Important

You should backup your policy configuration files prior to making any changes.

Using this approach accomplishes two things. First, it enables you to use a visual tool to build your code groups and permission sets for Reporting Services. This method is easier than writing XML configuration elements from scratch. Secondly, it ensures that you don't corrupt the security policy configuration files with malformed XML elements and attributes. For more information about the Code Access Security Policy Utility, see Using Reporting Services Security Policy Files on MSDN.

Before modifying policy configuration files, you should read all the information available in this section and related articles. Modifying the policy configuration of Reporting Services can have a significant security effect on how Reporting Services components execute external code modules.

Placement of CodeGroup elements for extensions

The placement of CodeGroup elements in a security policy file is important. For extensions and custom assemblies that you develop, you should place your custom code groups directly below the existing entry for the URL membership $CodeGen$/*, as indicated by the following example:

<CodeGroup  
    class="UnionCodeGroup"  
    version="1"  
    PermissionSetName="FullTrust">  
    <IMembershipCondition   
        class="UrlMembershipCondition"  
        version="1"  
        Url="$CodeGen$/*"  
    />  
</CodeGroup>  
<CodeGroup   
    class="UnionCodeGroup"  
    version="1"  
    PermissionSetName="FullTrust"  
    Name="MyCustomCodeGroup"  
    Description="Code group for my custom extension">  
        <IMembershipCondition class="UrlMembershipCondition"  
        version="1"  
        Url="C:\Program Files\Microsoft SQL Server\MSSQL\Reporting Services\ReportServer\bin\MyAssembly.dll"  
        />  
</CodeGroup>

More code groups can be added one after another.

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