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Re: Using XPC for Interprocess Communication
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Re: Using XPC for Interprocess Communication

  • Subject: Re: Using XPC for Interprocess Communication
  • From: Arjun SM <email@hidden>
  • Date: Fri, 13 Mar 2015 11:53:56 +0530
Thanks a lot for your insights. 
Appreciate it.

On Wed, Mar 11, 2015 at 8:38 PM, Quinn "The Eskimo!" <email@hidden> wrote:

On 10 Mar 2015, at 03:18, Arjun SM <email@hidden> wrote:

> Is it possible to give a provision such that only intended Clients can connect to my Server and not every independent process who knows the service name that is advertised in launchd.plist ?

Not in the launchd space.

One option is to get the pid from the XPC connection (via NSXPCConnection's processIdentifier property), build a code signing code ref from that (SecCodeCopyGuestWithAttributes), and check various code signing requirements from there (for example, you could check that it was signed by your Developer ID).  It's not perfect though; if any of your code loads a plug-in, that would also get access.

Ultimately this goal is very hard to reach on an open system like OS X.

Share and Enjoy
--
Quinn "The Eskimo!"                    <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware



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References: 
 >Using XPC for Interprocess Communication (From: Arjun SM <email@hidden>)
 >Re: Using XPC for Interprocess Communication (From: "Quinn \"The Eskimo!\"" <email@hidden>)
 >Re: Using XPC for Interprocess Communication (From: Arjun SM <email@hidden>)
 >Re: Using XPC for Interprocess Communication (From: "Quinn \"The Eskimo!\"" <email@hidden>)

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