IP address and Port in NEFilterDataProvider

Question

Created Aug ’20

Replies 3

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Participants 2

I am implementing Network Extension - NEFilterDataProvider.
checking whether we get IP address and port for the flow in handleNewFlow ?

how do we fetch the IP address & Port in this type of Network Extension (socket level ) ??

any pointer would help

Answered by Systems Engineer in 625959022

Check to see if you are getting the local or remote endpoints on the NEFilterSocketFlow?

Code Block swiftguard let socketFlow = flow as? NEFilterSocketFlow,
		let remoteEndpoint = socketFlow.remoteEndpoint as? NWHostEndpoint,
		let localEndpoint = socketFlow.localEndpoint as? NWHostEndpoint else {
				return .allow()
}

Otherwise, check the incoming NEFilterFlow directly in handleNewFlow; There should be a lot of information on here.

Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com

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Answer 1

Systems Engineer OP

Apple

Aug ’20

Accepted Answer

Check to see if you are getting the local or remote endpoints on the NEFilterSocketFlow?

Code Block swiftguard let socketFlow = flow as? NEFilterSocketFlow,
		let remoteEndpoint = socketFlow.remoteEndpoint as? NWHostEndpoint,
		let localEndpoint = socketFlow.localEndpoint as? NWHostEndpoint else {
				return .allow()
}

Otherwise, check the incoming NEFilterFlow directly in handleNewFlow; There should be a lot of information on here.

Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com

0

Answer 2

Babse OP

Aug ’20

many thanks Matt. that was of great help.

0

Answer 3

Systems Engineer OP

Apple

Aug ’20

No problem at all. Always glad to help.

Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com

0