Hey everyone,
I’m developing an app for visionOS where I need to display the Apple Vision Pro’s current IP address. For this I’m using the following code, which works for iOS, macOS, and visionOS in the simulator. Only on a real Apple Vision Pro it’s unable to extract an IP. Could it be that visionOS currently doesn’t allow this? Have any of you had the same experience and found a workaround?
var address: String = "no ip"
var ifaddr: UnsafeMutablePointer<ifaddrs>? = nil
if getifaddrs(&ifaddr) == 0 {
var ptr = ifaddr
while ptr != nil {
defer { ptr = ptr?.pointee.ifa_next }
let interface = ptr?.pointee
let addrFamily = interface?.ifa_addr.pointee.sa_family
if addrFamily == UInt8(AF_INET) {
if let name: Optional<String> = String(cString: (interface?.ifa_name)!), name == "en0" {
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface?.ifa_addr, socklen_t((interface?.ifa_addr.pointee.sa_len)!), &hostname, socklen_t(hostname.count), nil, socklen_t(0), NI_NUMERICHOST)
address = String(cString: hostname)
}
}
}
freeifaddrs(ifaddr)
}
return address
}
Thanks in advance for any insights or tips!
Best Regards,
David
Networking
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Simulator: iPhone 16 pro (iOS 26)
Minimum Deployments: iOS 16.0+, not iOS 17.
Here is the demo:
import SwiftUI
import NetworkExtension
struct ContentView: View {
private var monitor = NWPathMonitor()
var body: some View {
VStack {
Text("Hello, world!")
}
.task {
let _ = URLSession.shared
}
}
}
I couldn't find any mention in the Wi-Fi Aware documentation https://developer.apple.com/documentation/WiFiAware about the possibilities of the Wi-Fi Aware connection during the app working in the background execution mode (background state).
Does the framework keep the connection alive when the app goes to the background state?
Is there anything similar concept to CoreBluetooth state restoration available in the case of the Wi-Fi Aware framework?
Topic:
App & System Services
SubTopic:
Networking
I've recently updated one of our CI mac mini's to Sequoia in preparation for the transition to Tahoe later this year. Most things seemed to work just fine, however I see this dialog whenever the UI Tests try to run.
This application BoostBrowerUITest-Runner is auto-generated by Xcode to launch your application and then run your UI Tests. We do not have any control over it, which is why this is most surprising.
I've checked the codesigning identity with codesign -d -vvvv
as well as looked at it's Info.plist and indeed the usage descriptions for everything are present (again, this is autogenerated, so I'm not surprised, but just wanted to confirm the string from the dialog was coming from this app)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>BuildMachineOSBuild</key>
<string>22A380021</string>
<key>CFBundleAllowMixedLocalizations</key>
<true/>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>BoostBrowserUITests-Runner</string>
<key>CFBundleIdentifier</key>
<string>company.thebrowser.Browser2UITests.xctrunner</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>BoostBrowserUITests-Runner</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleSupportedPlatforms</key>
<array>
<string>MacOSX</string>
</array>
<key>CFBundleVersion</key>
<string>1</string>
<key>DTCompiler</key>
<string>com.apple.compilers.llvm.clang.1_0</string>
<key>DTPlatformBuild</key>
<string>24A324</string>
<key>DTPlatformName</key>
<string>macosx</string>
<key>DTPlatformVersion</key>
<string>15.0</string>
<key>DTSDKBuild</key>
<string>24A324</string>
<key>DTSDKName</key>
<string>macosx15.0.internal</string>
<key>DTXcode</key>
<string>1620</string>
<key>DTXcodeBuild</key>
<string>16C5031c</string>
<key>LSBackgroundOnly</key>
<true/>
<key>LSMinimumSystemVersion</key>
<string>13.0</string>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
<key>NSAppleEventsUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSBluetoothAlwaysUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSCalendarsUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSCameraUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSContactsUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSDesktopFolderUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSDocumentsFolderUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSDownloadsFolderUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSFileProviderDomainUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSFileProviderPresenceUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSLocalNetworkUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSLocationUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSMicrophoneUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSMotionUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSNetworkVolumesUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSRemindersUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSRemovableVolumesUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSSpeechRecognitionUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSSystemAdministrationUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>NSSystemExtensionUsageDescription</key>
<string>Access is necessary for automated testing.</string>
<key>OSBundleUsageDescription</key>
<string>Access is necessary for automated testing.</string>
</dict>
</plist>
Additionally, spctl --assess --type execute BoostBrowserUITests-Runner.app return an exit code of 0 so I assume that means it can launch just fine, and applications are allowed to be run from "anywhere" in System Settings.
I've found the XCUIProtectedResource.localNetwork value, but it seems to only be accessible on iOS for some reason (FB17829325).
I'm trying to figure out why this is happening on this machine so I can either fix our code or fix the machine. I have an Apple script that will allow it, but it's fiddly and I'd prefer to fix this the correct way either with the machine or with fixing our testing code.
Dear all,In macOS Catalina we have the new NetworkExtension framework that can filter network trafic on a computer.In my usecase I need the PID of the process that is the originator of the network flow. I'm aware that PID are not a reliable way to identify a process (since PIDs can be reused), but in my usecase only PID can identify what I need.In handleNewFlow(_ flow: NEFilterFlow) we can get the sourceAppAuditToken (flow.sourceAppAuditToken), where sourceAppAuditToken is a Data type. Is there a way to convert this sourceAppAuditToken to a PID value?I'm also aware of getting the signature of the process (eventually the Bundle ID) with SecCodeCopySigningInformation / kSecCSDynamicInformation, but again in my usecase it does not help.A way to do this is to call "netstat" and look for the local port in the output and get the PID from there, but sometimes this is not very reliable.Any ideas how to do this?Regards,Alex
For a past few days, I have been exploring control Filter and data filter. I am unable to understand how control moves from various functions of data filter to control Filter.
One thing that I am unable to figure out is that when I pass verdict as .allow in dataFilter's handleNewFlow and mark .shouldReport as true, I get inBytes and outbytes in the flow report of handle() in controlFilter. But when I pass verdict as needRules and wait till the handle is called in controlFilter when the report.event == .flowClosed, I don't get inBytes and outBytes.
I am unable to understand this complete flow of network extension from the apple documentation.
Can someone provide me with some flow chart or some pictorial representation or detailed explanation of network extension for iOS?
Also is there some way to imitate the ..statisticsReportFrequency for iOS as it is not available for iOS?
When I try to implement the new Background Task options in the same way as they show in the WWDC video (on watchOS) likes this:
let config = URLSessionConfiguration.background(withIdentifier: "SESSION_ID")
config.sessionSendsLaunchEvents = true
let session = URLSession(configuration: config)
let response = await withTaskCancellationHandler {
try? await session.data(for: request)
} onCancel: {
let task = session.downloadTask(with: request))
task.resume()
}
I'm receiving the following error:
Terminating app due to uncaught exception 'NSGenericException', reason: 'Completion handler blocks are not supported in background sessions. Use a delegate instead.'
Did I forget something?
I can develop a PacketTunnelProvider on Mac with xcode.
I work with my self codesign.
But when I sign it with Developer ID after read https://developer.apple.com/forums/thread/737894 , it still fail when I turn on the vpn .
send a request and it returns with timeout
Integration Team are Using Fortigate as a firewall and NGINX for some reasons
so we use VPN TO Access , requests always succeed but at once it failed with timeout in randomize request not specific one
we are using URLSession as a network layer
when I retry the same failed request again, it success
the request cannot connect apigee
Sec Team concern {
app session hits the security gateway with lots of SYN step to try to initiate a new session and doesn’t wait for (SYN-ACK / ACK) steps to happen to make sure the connection initiated correctly and gateway consider it flooding attack
}
Topic:
App & System Services
SubTopic:
Networking
If the includeAllNetworks flag to true, we cannot update our app via Xcode, TestFlight or the AppStore. In the AppStore and TestFlight cases, it seems that the packet tunnel process is stopped before the new app is downloaded - once the packet tunnel process is stopped, it can’t be started again via Settings/VPN profiles, nor can it be started via the app.
We found there is a significant crash reports (most of them are from iOS 17, the rest are iOS 16 and 15) comes from network loader from CFNetwork. Apparently it seems there are two types of crashes if we checked from the stack trace, the one we found from both Xcode organizer and 3rd party crash reporter is referring to URLConnectionLoader::loadWithWhatToDo and the other one from our 3rd party crash reporter (didn’t found the report from Xcode organizer) referring to
_CFURLResponseCreateFromArchiveList (this one only happened on iOS 17.5 and later devices). It seems that they are both kinda similar which might point to the same root cause.
From what I’ve seen, we never touch the lower level API directly, we usually use the URLSession to manage our API request. The crashed stack trace also didn’t give any indication about which of our app code that triggered the crash, it only shows calls to Apple’s internal SDKs so we are unsure how to approach this issue meanwhile the crash event already reached 800+ in the last 30 days. Unfortunately, we cannot reproduce the issue as the stack trace itself seems unclear to us.
I have submitted a report through feedback assistant with number: FB14679252.
Would appreciate if anyone can give any advice on what we can do to avoid this in the future and probably any hint on why it could happened.
Hereby I attached the crash reports that we found each from Xcode crash report and our 3rd party crash reporter (the report said it crashed on com.apple.CFNetwork.LoaderQ) so you could get a glimpse of the similarity.
Xcode crash report
xcode crash report.crash
3rd party crash report
3rd party crash report.txt
Eager to see the Wi-Fi Aware communication between iPhone (iOS 26) and an Android device, I tried iOS 26 beta on my iPhone16. and tried below code snippet from provided example at https://developer.apple.com/documentation/wifiaware/building-peer-to-peer-apps. Idea is to first verify discovery of Android WiFiAware service on iOS.
extension WAPublishableService {
public static var simulationService: WAPublishableService {
allServices[simulationServiceName]!
}
}
extension WASubscribableService {
public static var simulationService: WASubscribableService {
allServices[simulationServiceName]!
}
}
struct ContentView: View {
@State private var showingDevicePicker = false
@State private var pairedDevices: [WAPairedDevice] = [] // To hold discovered/paired devices
var body: some View {
VStack {
Button("Discover Devices") {
showingDevicePicker = true // Trigger the device picker presentation
}
.sheet(isPresented: $showingDevicePicker) {
DevicePicker(.wifiAware(.connecting(to: .selected([]), from: .simulationService))) { endpoint in
print("Paired Endpoint: \(endpoint)")
} label: {
Image(systemName: "plus")
Text("Add Device")
} fallback: {
Image(systemName: "xmark.circle")
Text("Unavailable")
}
}
List(pairedDevices) { device in
Text(device.name ?? "Unknown Device")
}
}
}
}
With suggested entitlement of WiFiAware and info.plist of service info.
Then I had Android device with WIFiAware service publishing service (service name set '_sat-simulation._udp') from this app https://github.com/anagramrice/NAN.
But above iOS app is unable to find the service published from android device.
Am I missing something?
Note: the above Android-NAN app seems to be working fine between Android to Another Android.
Hi! My project has the Local Push Connectivity entitlement for a feature we have requiring us to send low-latency critical notifications over a local, private Wi-Fi network.
We have our NEAppPushProvider creating a SSE connection using the Network framework with our hardware running a server. The server sends a keep-alive message every second. On an iPhone 16 with iOS 18+, the connection is reliable and remains stable for hours, regardless of whether the iOS app is in the foreground, background, or killed.
One of our QA engineers has been testing on an iPhone 13 running iOS 16, and has notice shortly after locking the phone, specifically when not connected to power the device seems to turn off the Wi-Fi radio. So when the server sends a notification, it is not received. About 30s later, it seems to be back on. This happens on regular intervals.
When looking at our log data, the provider does seem to be getting stopped, then restarted shortly after. The reason code is NEProviderStopReasonNoNetworkAvailable, which further validates that the network is getting dropped by the device in regular intervals.
My questions are:
Were there possibly silent changes to the framework between iOS versions that could be the reason we're seeing inconsistent behavior?
Is there a connection type we could use, instead of SSE, that would prevent the device from disconnecting and reconnecting to the Wi-Fi network?
Is there an alternative approach to allow us to maintain a persistent network connection with the extension or app?
Topic:
App & System Services
SubTopic:
Networking
Tags:
Extensions
Network
User Notifications
Network Extension
I am trying to connect to an accessory's WiFi network using the below code and I always see the message "connection succeded" even if I provide an incorrect passphrase. I tried with different accessories and see the same behavior.
hotspotConfigurationManager.joinAccessoryHotspot(accessory, passphrase: passphrase) { error in
if let error = error {
print("connection failed: \(error.localizedDescription)")
} else {
print("connection succeeded")
}
}
Hello! I develop transparent proxy based application, and I'm receiving a lot of crash reports from macOS 15.5 for crash in __88-[NEExtensionAppProxyProviderContext setInitialFlowDivertControlSocket:extraValidation:]_block_invoke.90 when stopping.
Even very old versions of my software started crashing on macOS 15.5.
I checked my extension that it correctly calls setTunnelNetworkSettings:nil on proxy stop, but crash is still here.
Does anybody else have this problem? Do you know any workaround for it?
There are multiple report of crashes on URLConnectionLoader::loadWithWhatToDo. The crashed thread in the stack traces pointing to calls inside CFNetwork which seems to be internal library in iOS.
The crash has happened quite a while already (but we cannot detect when the crash started to occur) and impacted multiple iOS versions recorded from iOS 15.4 to 18.4.1 that was recorded in Xcode crash report organizer so far.
Unfortunately, we have no idea on how to reproduce it yet but the crash keeps on increasing and affect more on iOS 18 users (which makes sense because many people updated their iOS to the newer version) and we haven’t found any clue on what actually happened and how to fix it on the crash reports. What we understand is it seems to come from a network request that happened to trigger the crash but we need more information on what (condition) actually cause it and how to solve it.
Hereby, I attach sample crash report for both iOS 15 and 18.
I also have submitted a report (that include more crash reports) with number: FB17775979.
Will appreciate any insight regarding this issue and any resolution that we can do to avoid it.
iOS 15.crash
iOS 18.crash
We have an iOS app which includes a packet tunnel provider network extension. We have noticed on rare occasions that the VPN fails to start when we try to start the VPN from the app after installing it. However, rebooting the device or reinstalling the app fixes the issue.
When creating the sysdiagnose file, we found some strange messages, a snippet is given below:
2024-09-10 13:40:20.291430 +0100 launchd Could not find and/or execute program specified by service: 2: No such file or directory: /private/var/containers/Bundle/Application/2FA92604-C67D-490D-8E8E-00F8D6FBF990/Sample.app/PlugIns/Tunnel.appex/Tunnel
error 2024-09-10 13:40:20.291456 +0100 launchd Service could not initialize: access(/private/var/containers/Bundle/Application/2FA92604-C67D-490D-8E8E-00F8D6FBF990/Sample.app/PlugIns/Tunnel.appex/Tunnel, X_OK) failed with errno 2 - No such file or directory, error 0x6f - Invalid or missing Program/ProgramArguments
We encountered this before several months ago on iOS 17.4 and reported it when the issue occurred, but this issue continues to be present in the iOS 18 release candidate.
Is there any solution for this issue?
Feedback ID: FB13714761
I'm developing a per-app VPN iOS app with Wireguard. For that, I created a configuration file with payload type "com.apple.vpn.managed.applayer". Using the MDM server I installed some apps which need to use the VPN connection. But when I open these apps, I could see the VPN getting enabled in the device. The VPN icon appears on the notification bar but no internet connection. The VPN and internet is working correctly if I change the payload type to "com.apple.vpn.managed" in configuration file.
Goal : Block all outbound connections to a static list of hosts (both In-app requests and WKWebView/Safari).
App & both extensions have Network Extension entitlement with content-filter-provider and filter-control-provider
What’s working:
Safari and WKWebView requests matching the block list are dropped.
What’s broken:
In-app traffic never reaches the Data Provider—those requests always succeed.
Setup:
• NEFilterProviderConfiguration with both Data & Control providers, filterBrowsers = true, filterSockets = true
• Data Provider implements handleNewFlow for socket/browser flows
• Control Provider implements handleNewFlow for browser flows
• Enabled via saveToPreferences() and toggled ON in Settings
In macOS 15 Sequoia (tested on 15.0 and 15.0.1), the icon of our network extension (and of other third party apps) is missing. See the attached screenshot, instead of the generic app icon there should be the icon of our app.
Is this a bug, or is there something we developers can/should do? I tried adding an asset catalog with the app icon, and specifying that using ASSETCATALOG_COMPILER_APPICON_NAME like we do in the main app. Even though the icon is added to the Resources folder of our .systemextension, and is referenced in the Info.plist using CFBundleIconFile and CFBundleIconName, the icon is still not showing in the System Settings.