HP Remote Graphics Software 7.0

3. Device Protocol

4. Vendor ID

5. Product ID

6. Device BCD

7. Manufacturer

8. Product Type

9. Serial Number

USB device mounting can also be allowed/denied based on the following two parameters:

1. IP address of the local computer

2. The domain group of the local user

The ACL file supports two rule types: “allow” and “deny.” The rules are evaluated by the remote

computer for each USB connection request from a local computer as follows:

●

If any rule indicates the USB connection should be denied, the connection is denied, regardless

of any other rule.

●

If any rule indicates the USB connection should be allowed, and if there are no rules that deny

the connection, the connection is allowed.

●

If no rules match at all, the connection is denied.

Therefore, a deny rule takes precedence over an allow rule. The ACL file is implemented as an

Extensible Markup Language (XML) file. The ACL schema file is located at:

C:\Program Files\Hewlett-Packard\Remote Graphics Sender\hprUsbAcl.xsd

For backwards compatibility, the following default ACL file (installed during RGS Sender installation)

allows all USB connections to be made:

C:\Program Files\Hewlett-Packard\Remote Graphics Sender

\hprDefaultUsbAcl.xml

The names for these files can be changed using the properties described in

RGS Sender properties

on page 87. The default ACL file contains the following contents, which allows all USB connections

to be made:

<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?> <hprUsbAcl>

rule type="allow"> <name>Allow all USB devices (HP default)</name> </

rule> </ruleset> </hprUsbAcl>

The following example ACL file denies all Remote USB attachment requests:

Rules may contain filters based on the 11 parameters listed previously. These parameters are

repeated below along with the name of the filter element.

1. Device Class—bDeviceClass

2. Device Subclass—bDeviceSubclass

3. Device Protocol—bDeviceProtocol

4. Vendor ID—idVendor

5. Product ID—idProduct

54 Chapter 8 Advanced RGS features