VMware Workstation 7 Manual de usuario descargar pdf (Pagina 425)

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Chapter 19 Setting and Using Policies and Customizing VMware Player

Examples of Policy Scripts

Examplesincludeanauthenticationscript,ahosttoguestdatascript,andapower‐on

hookscript.

SamplescriptsareinstalledwithVMwarePlayerinthefollowinglocation:

C:\Program Files\VMware\VMware Player\Samples

Example of an Authentication Script

Thisscriptexampleincludesthebasic elementsrequiredforanyauthenticationscript.

Thepurposeofanauthenticationscriptistodooneofthefollowing:

 Iftheuseristobegrantedaccesstothevirtualmachine,generatethedatausedto

createthekeyforthisuserandsenditasoutput.Thedatamustbeuniqueforeach

user.Ifaccessisgranted,theexitcodeis0.

 Iftheuseristobedeniedaccesstothevirtualmachine,thescriptexitswitha

non‐zeroexitcode.Thisisareferencetotheexitcode,nottheoutputvalue.

Theoutputofthescriptishashedtocreateakeytoencryptanddecryptvirtualmachine

files.Thefirsttimethissc

riptis

run,theoutputishashedtoencryptthevirtualmachine.

Whenavirtualmachineisdecrypted,thescriptmustreturnthesamevalue.Ifthescript

returnsadifferentvalue,thevirtualmachineisnotdecryptedandtheuserseesanerror

message.

Thescriptmayreturnanyva

lue.Toensurebestsecurity,avaluethatincludesonly

printablecharactersshouldbeatleast32byteslong.Forbinarydata,thevalueshould

beatleast16byteslongtoensureproperentropy.TheoutputissenttotheStdOutfile.

ThefollowingexampleiswritteninPe

rl.ItisinstalledbyWo

rkstationas

sample_auth.pl.CompileitwithaPerlinterpretertorunit.

# VMware Sample Script

# Sample script for ACE script authentication

# Description:

# This sample script looks up the user as defined in the environment

# variable TEST_USERNAME and returns seed data that is used to make a key

# for authenticationpurposes.

# It assumes that the username is defined in the environment variable

# TEST_USERNAME (a ficticious environment variable used for this sample)

# and returns the seed data from a harcoded map of username to seed data.

# Input to script:

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VMware Workstation 7 Manual de usuario Pagina 425