I asked this question of AI and it said that yes it was possible, and gave some sample code override class func filterConfiguration() -> ILMessageFilterExtensionConfiguration { let config = ILMessageFilterExtensionConfiguration() // You can specify multiple network URLs config.networkURLs = [ URL(string: "https://api1.example.com/filter")!, URL(string: "https://api2.example.com/filter")! ] return config } And said the OS will try the first, and if there's no response within the first few seconds it'll move onto the second. However, there is no such class as ILMessageFilterExtensionConfiguration AFAICT, if there is then how to access/use it, if there isn't, then I wonder how the AI counjured it up? If multiple urls can be specified, then can the extension also specify a particular API to use and switch between them at some point? When does the OS call filterConfiguration()?

I'm building a bluetooth device that is connected to my app. The device I'm building will be connected to the phone as much as possible, and when the user leaves the device's range and then comes back later, I expect the OS to wake the app up when it reconnects in the background using the CoreBluetooth willRestoreState wake up method. Using just CoreBluetooth for pairing, I've confirmed that the phone will reconnect to the device while in the background and the app gets woken up when that happens. I'm hoping to use ASK for pairing instead as it's a much nicer user experience. When I initiate and confirm pairing via ASK, I can see that it's connected and paired successfully and I see my device and app connected as I expect. But when the device goes away, and the app has been in the background, and then I come in range of the phone, the device never reconnects automatically in Bluetooth settings. When I manually tap the device in settings to connect, it does connect, but I don't think my app gets woken up and restored as I don't see the requests I expect happening when it's in the background. Does ASK support scanning for peripherals via CoreBluetooth while in the background, or automatic reconnection? I assumed that when my app is launched, I activate the ASAccessorySession session, and the .activated callback will fire, but I'm not seeing that happen.

Hi everyone, is there any ways we can remove the weak ciphers as part of TLS handshake (TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) I checked here but still do not see anyways to print out and change the ciphers suite we want to use https://forums.developer.apple.com/forums/thread/43230 https://forums.developer.apple.com/forums/thread/700406?answerId=706382022#706382022

on MacOS I am using raw socket and PF_Route options to monitor the routing table changes but looks like that is not supported in iOS what are the other ways to achieve real time monitoring in iOS ?

I am developing an application that processes a video file stored on a server. I use URLSessionDataTask with a delegate handler to download the file. It is not necessary to download the entire file at once. Instead, I can load small chunks of the file as needed. This approach helps minimize memory consumption. I am trying to design a network layer that supports this behavior. Ideally, I would like to have an interface similar to: func readMoreData(length: Int) async throws -> Data Problems I Encountered: It seems that URLSessionDataTask does not allow controlling how many bytes will be downloaded. It always downloads the entire request. If I call suspend on URLSessionDataTask, the network activity does not stop, and the file keeps downloading. If I upgrade the dataTask to a StreamTask, the file still downloads, though reading bytes can be done through the StreamTask API. I would prefer behavior similar to AsyncHTTPClient (a Swift Server library) or Network Framework. These frameworks allow controlling the number of bytes downloaded at a time. Unfortunately, they do not fit the specific requirements of my project. Am I correct in understanding that controlling the download process is not possible with URLSessionDataTask? As a possible solution, I am considering using HTTP Range Requests, though this would increase the number of additional server requests, which I would like to avoid.

If I run an app with a Message Filter Extension on a handset with iOS 18.2 then it runs fine, however if I run the exact same app with no changes on a different phone which has iOS 17.6.1 installed then the following error occurs when the extension is enabled within Settings: dyld[631]: Symbol not found: _$sSo40ILMessageFilterCapabilitiesQueryResponseC14IdentityLookupE21promotionalSubActionsSaySo0abI6ActionVGvs

We are using PacketTunnel as system extension to establish vpn tunnel. The flow is like: Create a PacketTunnelProvide to establish vpn When tunnel gets connected add excludedRoutes by calling setTunnelNetworkSettings(). Result: The routing table is not getting updated with new excludeRoutes entries. As per setTunnelNetworkSettings() documentation: "This function is called by tunnel provider implementations to set the network settings of the tunnel, including IP routes, DNS servers, and virtual interface addresses depending on the tunnel type. Subclasses should not override this method. This method can be called multiple times during the lifetime of a particular tunnel. It is not necessary to call this function with nil to clear out the existing settings before calling this function with a non-nil configuration." So we believe setTunnelNetworkSettings() should be able to set new excludeRoutes. We could see we are passing correct entries to setTunnelNetworkSettings(): { tunnelRemoteAddress = 10.192.229.240 DNSSettings = { protocol = cleartext server = ( 10.192.230.211, 192.168.180.15, ) matchDomains = ( , ) matchDomainsNoSearch = NO } IPv4Settings = { configMethod = manual addresses = ( 100.100.100.17, ) subnetMasks = ( 255.255.255.255, ) includedRoutes = ( { destinationAddress = 1.1.1.1 destinationSubnetMask = 255.255.255.255 gatewayAddress = 100.100.100.17 }, { destinationAddress = 2.2.2.0 destinationSubnetMask = 255.255.255.255 gatewayAddress = 100.100.100.17 }, { destinationAddress = 11.11.11.0 destinationSubnetMask = 255.255.255.0 gatewayAddress = 100.100.100.17 }, ) excludedRoutes = ( { destinationAddress = 170.114.52.2 destinationSubnetMask = 255.255.255.255 }, ) overridePrimary = NO } MTU = 1298 } The problem is present on macOS Sequoia 15.2. Is it a known issue? Did anyone else faced this issue?

Our company has a VPN client that uses the Packet Tunnel Provider network extension and when 18 came out we noticed that we were no longer seeing DNS requests get sent to the VPNs TUN interface. Do a packet trace, once the VPN becomes active we see requests to _dns.resolver.arpa and 12-courier.push.apple.com, which both get resolved as expected. Also our main app that controls the VPN service and does authentication has to resolve a hostname to get to an authentication service and we see those requests just fine as well. However, when we try to resolve by going to a webpage in Safari we see no DNS request corresponding to that. What are we missing? At first I thought it was the RFC9461 stuff but from the packet traces I don't believe that is the case. I have also tried other networking tools to send the DNS requests and that failed as well.

I'm developing in Swift and working on parsing DNS queries. I'm considering using dns_parse_packet, but I noticed that dns_util is deprecated (although it still seems to work in my limited testing). As far as I know, there isn’t a built-in replacement for this. Is that correct? On a related note, are there any libraries available for parsing TLS packets—specifically the ClientHello message to extract the Server Name Indication (SNI)—instead of relying on my own implementation? Related to this post.

sometimes app from background to foreground , then send a Http request will got network lost response, and if you delay 0.1 seconds to send request, it's work fine. Does any one can explian this?

Hello Everyone, I'm currently working on a cross-platform application that uses IP-based multicast for device discovery across both Apple and non-Apple devices running the same app. All devices join a multicast group "X.X.X.X" on port Y. For Apple devices, I am using NWConnectionGroup for multicast discovery, while for non-Apple devices, I am using BSD sockets. The issue arises when I attempt to send a multicast message to the group using NWConnectionGroup. The message is sent from a separate ephemeral port rather than the multicast port Y. As a result, all Apple processes that are using NWConnectionGroup can successfully receive the multicast message. However, the processes running on the non-Apple devices (using BSD sockets) do not receive the message. My Questions: Is there a way to configure NWConnectionGroup to send multicast messages from the same multicast port Y rather than an ephemeral port? Is there any known behavior or limitation in how NWConnectionGroup handles multicast that could explain why non-Apple devices using BSD sockets cannot receive the message? How can I ensure cross-platform multicast compatibility between Apple devices using NWConnectionGroup and non-Apple devices using BSD sockets? Any guidance or suggestions would be greatly appreciated! Thanks, Harshal

Hi, I have a problem about "NSPOSIXErrorDomain Code=65 & iOS18 & Xcode 16". I used 'CocoaAsyncSocket', '~> 7.6.5'. It works fine on iOS 15.2， But it's worried on iOS 18.3. Before this, broadcasts can be obtained normally。 I had get socket Multicast Networking. Please help me .

"NSPOSIXErrorDomain Code=65 & iOS18 & Xcode 16". I used 'CocoaAsyncSocket', '~> 7.6.5'. It works fine on 13pro iOS16.4.1 &iphone x 16.7.7， But it's bad on iOS 18.3.

Hi, I have a problem with my Mac crashing sims 4. can you let me know if this is a Mac problem or a sims 4 problem ? Link to Mac Info : https://prnt.sc/NYG0jn8_u0dB Link to crash report : https://prnt.sc/UImzDIsqdVYn

With the new macOS 15, Apple introduced the new Local Network Privacy feature. This is causing issues for our customers as - even though they granted the required permission for our software - connections to a server in their local network are being blocked. The situation is not fixed by recent macOS updates. As far as I know, this issue exists for machines running on Apple Silicon. Systems running macOS versions (e.g. Sonoma) are not affected. Currently, the workaround is to re-enable the permission under Settings > Privacy & Security > Local Network. The list shows our application with an enabled checkbox. Users now have to de-select the box and then re-select it again for the application to work. They have to do this after each and every reboot of their system, which is slightly annoying (so at the moment we recommend to not upgrade macOS to Sequoia, if possible) I did some research and saw that other products are also affected by this bug. Is there a solution to this issue or any plans to fix it?

I'm writing a SwiftUI LDAP Browser. I built a command line swift app to do some testing and it works fine. I had to add the certificates from the LDAP server to the system keychain before it would work with TLS/SSL. Then I ported the same code into a SwiftUI app but I cannot get it to connect via TLS/SSL. On the same machine with the same certs it errors with: An unexpected error occurred: message("Can't contact LDAP server") It connect fine with our TLS/SSL. I suspect this may have to do with App Transport Security. Can anyone point me in the right direction to resolve this? App is MacOS only.

We updated the apple-app-site-association file two weeks ago and we are only seeing the new content from Apple's CDN serving certain regions such as Texas and Canada. Regions such as Colorado intermittently sees the old content and California has been receiving the old content all the time. Is this a known issue? If yes, when can we expect this to be fixed and where to check the status? If not, can someone in charge of CDN please look into this? Let me know if there is a better place to report this issue and get the support ASAP though. Thank you in advance and happy new year!

I was wondering if anybody knows if it's possible for an app to use a QR code to join a Wi-Fi network - the same functionality as the iOS 11 Camera app?I have some code reading a QR Code that looks something like - "WIFI:S:name-of-network;T:WPA;P:password;;"This QR code works perfectly in the native camera app - asking the user if they'd like to join the Wi-Fi network and successfully joining if they do.When I scan the QR code in my own code, I get the following error: canOpenURL: failed for URL: "WIFI:S:name-of-network;T:WPA;P:password;;" - error: "The operation couldn’t be completed. (OSStatus error -10814.)"In my app, I've got URL Schemes for "prefs" and have added "wifi" in LSApplicationQueriesSchemes.Am I doing something wrong, or is this simply not possible?If it's not possible, is there anyway to use the iOS native camera functionality within an app?

On macOS 15, if a program installed in /Applications is allowed to connect to a PostgreSQL server on another machine on the local network, a program launched in debug mode from Xcode is not allowed to connect to the local network, and no prompt appears. Although it is possible to turn off registered programs in Local Network Privacy in Beta 2, permissions for programs launched from Xcode cannot be obtained at all. Does anyone know how to solve this problem?

I'm trying to detect the state of Local Network privacy on macOS Sequoia via NWBrowser, as recommended in https://developer.apple.com/documentation/technotes/tn3179-understanding-local-network-privacy Regardless of the state of Local Network privacy - undetermined, allowed or denied, NWBrowser receives an update indicating that its in the ready state. Scanning does not seem to trigger the Local Network privacy alert for me - I have to use the other recommended method to trigger the prompt. Enabling or disabling Local Network privacy does not seem to send any updates for NWBrowser. https://developer.apple.com/forums/thread/666431 seems related, and implies that they did receive further updates to NWBrowser. Filed as FB16077972