While trying to convert one our apps to build against VisionOS, we noticed that the OpenSSL library apparently does not contain support for VisionOS yet: /.../OpenSSL.xcframework:1:1: While building for visionOS, no library for this platform was found in '/.../OpenSSL.xcframework'. Can someone confirm that there is no official version of OpenSSL with VisionOS platform support? It seems there has been some effort in the community to find a workaround to this, but I believe it would require building OpenSSL locally, which seems like not a good security practice. So if someone from Apple can let us know what the right path here forward is, we'd appreciate it.

在我的应用程序中，我注意到在iOS 17及以上版本中，连接到VPN后，特定流量似乎不再通过本地网络发送，而是直接通过VPN连接发送。

I would like to get the full DNS responses from the system resolver. I'm using DNSServiceQueryRecord, but I can't get negative responses. How do I get the negative responses? I need the full response because they have clues about network-level censorship. For instance, mismatched case in the name, bad answer RR type, missing SOA record on no answers response. On Android I can use android_res_nquery, but I couldn't find anything similar on iOS and macOS. The closest I found was DNSServiceQueryRecord, which at least gives me resource records, so I can inspect TTL and name case. After some struggle, I was able to make it work. I'm using Go with cgo for that: https://github.com/fortuna/gio-test/blob/fortuna-dns/sysresolver_darwin.go https://github.com/fortuna/gio-test/blob/fortuna-dns/sysresolver_darwin_export.go My sequence of calls is: DNSServiceQueryRecord(sdRef, 0, 0, fullname, rrtype, rrclass, (DNSServiceQueryRecordReply)goCallback, context); fd := C.DNSServiceRefSockFD(sdRef) nReady, err := unix.Poll([]unix.PollFd{{Fd: int32(fd), Events: unix.POLLIN | unix.POLLERR | unix.POLLHUP}}, timeout) serviceErr = C.DNSServiceProcessResult(sdRef) // Here my callback gets called, multiple times for multiple answers. C.DNSServiceRefDeallocate(sdRef) I'm able to get positive answers, even multiple answers. But the Poll doesn't return when there are no answers (like for CNAME www.example.com). I expected the poll to return on negative answers, and my callback to be called with an error when calling DNSServiceProcessResult. Is that not the expected behavior? How do I get notified that a query has no answers?

I working on a QUIC Client/Server and would like to inspect all underlying protocols via NWConnection.ContextContent in the receive method. receiveMessage(completion: {(receivedContent, context, isComplete, receivedError) .receive(minimumIncompleteLength: 1, maximumLength: 65535) { (receivedContent, context, isComplete, receivedError) As far as I understand is that the parameter .protocolMetadata in ContextContent should provide a list of all involved protocols. I expect an array of 3 NWProtocolMetadata like [NWProtocolIP.Metadata, NWProtocolUDP.Metadata, NWProtocolQUIC.Metadata] but I only get [NWProtocolQUIC.Metadata]. I already managed to get [NWProtocolIP.Metadata, NWProtocolUDP.Metadata] for a UDP connection but I can't get it to work for QUIC. Is it possible to get NWProtocolIP.Metadata, NWProtocolUDP.Metadata for a QUIC connection within the receive function? Regards Jan

Hey devs! I recently started a project, a macOS app, which is like a Remote Desktop app but only on local network. For this I wanted to use the MultipeerConnectivity framework, and it's my first time using it. So I have already done the device discovery side that is working well as it is the easier part. Now I just need someone who knows how it works and who has time to explain me (as I couldn't find any documentation about this) how does work the OutputStream And InputStream in MC and if its a good choice for my needs. It has to be low latency and high resolution... I also have seen other frameworks such as WebRTC that I could combine with a local WebSocket Server, but as I'm new to live video streaming and that I don't know anyone that is experimented with this I wanted to ask there for your advices. Thank you in advance, TR-MZ (just an unknown Indie dev).

I'm developing an iOS app for video playback using the external library vlc-ios, Prior to iOS17, I was able to achieve streaming playback of mp4 files hosted on a server using the vlc-ios librarys's HTTP POST method. However, after iOS17, this streaming playback no longer functions. Upon inspecting the logs, there were no traces of vlc-ios receiving data from iPhone device. Does anyone know the cause of this issue? Additionally, the occurrence condition is when the environment is iOS17 and the sim's 5G communication is enabled.

I am using Relay to connect to nginx server which supports http3 connections for which I get quic_stream_send_create [C1.1.1.1:5] [24e7c30b6b4eb7ba-0000000000001002e2c0e6cb5099cd86ef1f0f7c] unable to create DATAGRAM flow since the peer did not provide max_datagram_frame_size in transport parameters [C1.1.1.1:3] Unable to send 1200 early bytes quic_stream_send_create [C1.1.1.1:5] [24e7c30b6b4eb7ba-0000000000001002e2c0e6cb5099cd86ef1f0f7c] unable to create DATAGRAM flow since the peer did not provide max_datagram_frame_size in transport parameters This is something very simple I have written : ` let relayURL = URL(string: "https://192.168.64.2:8443")! let relayEndpoint = NWEndpoint.url(relayURL) if #available(iOS 17.0, *) { var tlsOptions = NWProtocolTLS.Options() let relayServer = ProxyConfiguration.RelayHop(http3RelayEndpoint: relayEndpoint, tlsOptions: NWProtocolTLS.Options = .init()) let relayConfig = ProxyConfiguration(relayHops: [relayServer]) let config = URLSessionConfiguration.default` config.connectionProxyDictionary = [kCFNetworkProxiesHTTPEnable as AnyHashable: true, kCFNetworkProxiesHTTPProxy as AnyHashable: "192.168.64.2", kCFNetworkProxiesHTTPPort as AnyHashable: 8443, kCFStreamPropertySSLSettings as AnyHashable: sslSettings] config.proxyConfigurations = [relayConfig] // Call addCert to add the certificate to the trust store //addCert(cert: "cert") // Example usage of the custom session let session = makeInsecureURLSession(config: config) let url = URL(string: "https://google.com")! // Example URL let task = session.dataTask(with: url) { data, response, error in // Handle response print("response is \(response)") if let httpResponse = response as? HTTPURLResponse { let protocolUsed = httpResponse.url?.scheme ?? "Unknown" print("Protocol used: \(protocolUsed)") } else { print("Response is not an HTTPURLResponse") } } task.resume()

First of all, I tried MobileVLCKit but there is too much delay Then I wrote a UDPManager class and I am writing my codes below. I would be very happy if anyone has information and wants to direct me. Broadcast code ffmpeg -f avfoundation -video_size 1280x720 -framerate 30 -i "0" -c:v libx264 -preset medium -tune zerolatency -f mpegts "udp://127.0.0.1:6000?pkt_size=1316" Live View Code (almost 0 delay) ffplay -fflags nobuffer -flags low_delay -probesize 32 -analyzeduration 1 -strict experimental -framedrop -f mpegts -vf setpts=0 udp://127.0.0.1:6000 OR mpv udp://127.0.0.1:6000 --no-cache --untimed --no-demuxer-thread --vd-lavc-threads=1 UDPManager import Foundation import AVFoundation import CoreMedia import VideoDecoder import SwiftUI import Network import Combine import CocoaAsyncSocket import VideoToolbox class UDPManager: NSObject, ObservableObject, GCDAsyncUdpSocketDelegate { private let host: String private let port: UInt16 private var socket: GCDAsyncUdpSocket? @Published var videoOutput: CMSampleBuffer? init(host: String, port: UInt16) { self.host = host self.port = port } func connectUDP() { do { socket = GCDAsyncUdpSocket(delegate: self, delegateQueue: .global()) //try socket?.connect(toHost: host, onPort: port) try socket?.bind(toPort: port) try socket?.enableBroadcast(true) try socket?.enableReusePort(true) try socket?.beginReceiving() } catch { print("UDP soketi oluşturma hatası: \(error)") } } func closeUDP() { socket?.close() } func udpSocket(_ sock: GCDAsyncUdpSocket, didConnectToAddress address: Data) { print("UDP Bağlandı.") } func udpSocket(_ sock: GCDAsyncUdpSocket, didNotConnect error: Error?) { print("UDP soketi bağlantı hatası: \(error?.localizedDescription ?? "Bilinmeyen hata")") } func udpSocket(_ sock: GCDAsyncUdpSocket, didReceive data: Data, fromAddress address: Data, withFilterContext filterContext: Any?) { if !data.isEmpty { DispatchQueue.main.async { self.videoOutput = self.createSampleBuffer(from: data) } } } func createSampleBuffer(from data: Data) -> CMSampleBuffer? { var blockBuffer: CMBlockBuffer? var status = CMBlockBufferCreateWithMemoryBlock( allocator: kCFAllocatorDefault, memoryBlock: UnsafeMutableRawPointer(mutating: (data as NSData).bytes), blockLength: data.count, blockAllocator: kCFAllocatorNull, customBlockSource: nil, offsetToData: 0, dataLength: data.count, flags: 0, blockBufferOut: &blockBuffer) if status != noErr { return nil } var sampleBuffer: CMSampleBuffer? let sampleSizeArray = [data.count] status = CMSampleBufferCreateReady( allocator: kCFAllocatorDefault, dataBuffer: blockBuffer, formatDescription: nil, sampleCount: 1, sampleTimingEntryCount: 0, sampleTimingArray: nil, sampleSizeEntryCount: 1, sampleSizeArray: sampleSizeArray, sampleBufferOut: &sampleBuffer) if status != noErr { return nil } return sampleBuffer } } I didn't know how to convert the data object to video, so I searched and found this code and wanted to try it func createSampleBuffer(from data: Data) -> CMSampleBuffer? { var blockBuffer: CMBlockBuffer? var status = CMBlockBufferCreateWithMemoryBlock( allocator: kCFAllocatorDefault, memoryBlock: UnsafeMutableRawPointer(mutating: (data as NSData).bytes), blockLength: data.count, blockAllocator: kCFAllocatorNull, customBlockSource: nil, offsetToData: 0, dataLength: data.count, flags: 0, blockBufferOut: &blockBuffer) if status != noErr { return nil } var sampleBuffer: CMSampleBuffer? let sampleSizeArray = [data.count] status = CMSampleBufferCreateReady( allocator: kCFAllocatorDefault, dataBuffer: blockBuffer, formatDescription: nil, sampleCount: 1, sampleTimingEntryCount: 0, sampleTimingArray: nil, sampleSizeEntryCount: 1, sampleSizeArray: sampleSizeArray, sampleBufferOut: &sampleBuffer) if status != noErr { return nil } return sampleBuffer } And I tried to make CMSampleBuffer a player but it just shows a white screen and doesn't work struct SampleBufferPlayerView: UIViewRepresentable { typealias UIViewType = UIView var sampleBuffer: CMSampleBuffer func makeUIView(context: Context) -> UIView { let view = UIView(frame: .zero) let displayLayer = AVSampleBufferDisplayLayer() displayLayer.videoGravity = .resizeAspectFill view.layer.addSublayer(displayLayer) context.coordinator.displayLayer = displayLayer return view } func updateUIView(_ uiView: UIView, context: Context) { context.coordinator.sampleBuffer = sampleBuffer context.coordinator.updateSampleBuffer() } func makeCoordinator() -> Coordinator { Coordinator() } class Coordinator { var displayLayer: AVSampleBufferDisplayLayer? var sampleBuffer: CMSampleBuffer? func updateSampleBuffer() { guard let displayLayer = displayLayer, let sampleBuffer = sampleBuffer else { return } if displayLayer.isReadyForMoreMediaData { displayLayer.enqueue(sampleBuffer) } else { displayLayer.requestMediaDataWhenReady(on: .main) { if displayLayer.isReadyForMoreMediaData { displayLayer.enqueue(sampleBuffer) print("isReadyForMoreMediaData") } } } } } } And I tried to use it but I couldn't figure it out, can anyone help me? struct ContentView: View { // udp://@127.0.0.1:6000 @ObservedObject var udpManager = UDPManager(host: "127.0.0.1", port: 6000) var body: some View { VStack { if let buffer = udpManager.videoOutput{ SampleBufferDisplayLayerView(sampleBuffer: buffer) .frame(width: 300, height: 200) } } .onAppear(perform: { udpManager.connectUDP() }) } }

I'm trying to establish a tcp connection to server using Network Framework (nw_connection_t in obj-c). As a draft I use tcp echo server tcpbin.com with default connection parameters. Everything works fine: connection establishing, sending and receiving data. But when I disable wifi network via Control Center, established connection doesn't drop, connection status doesn't change in nw_connection_set_state_changed_handler until remote side drops connection by timeout. Meantime nw_connection_set_path_changed_handler reports that wifi network path is "unsatisfied" and cellular connection is available. The same thing happens when I switch from cellular to wifi network via Control Center. Questions are: Should nw_connection_t change its state to nw_connection_state_failed and\or nw_connection_state_waiting when the current network path becomes unavailable? What is the recommended way to switch from the inactive interface (or interface without internet) to working one? iOS version is 17.3.

I am using Godot 4.2.1 and C# (.NET 8.0.1) to create an app. In Godot the app is exported to an XCode project so it can then be built to run on IOS devices. Access WiFi is checked in the Godot presets I have the multicast entitlement from Apple. Communication over UDP using Unicast to send and receive packets works correctly on iOS, macOS and Android devices. To set the multicast entitlement, the project name is selected in XCode, to open a big dialog box with multiple tabs. Click on the tab Signing and Capabilities. To add the multicast to the project "+ Capability" is clicked, search for "multi" which brings up multicast networking. Click on multicast networking to add it to the project. Then in the same dialog box, click the tab build settings and under "Signing" code signing identity is changed to iOS developer for all Debug and release items. The project is then built and run on the iOS device. The symptom is that no multicast packets are received. The multicast receiving code below works on macOS and Android devices so there must be something going on with the iOS devices that I'm missing. The UDP server is configured in C# code as a _listener: private const string MULTICAST_ADDRESS = "239.255.1.1"; private const int BCON_PORT = 49707; _listener = new UdpClient(); _listener.ExclusiveAddressUse = false; _listener.JoinMulticastGroup(IPAddress.Parse(MULTICAST_ADDRESS)); _listener.Client.Bind(new IPEndPoint(IPAddress.Any, BCON_PORT));

Hello, I am currently receiving an error message when trying to connect to my web service(use http), I suspect it is a tsl configuration, I have already modified the Info.plist configuration file, currently I have this configuration: The error message is the following: System.InvalidOperationException: Not supported Content-Type in the response: " at System.Web.Services.Protocols.-WebServiceHelper.InvalidOperation (System. String , System.Net.WebResponse, System.Text.Encoding ) <0x102261ef0 0x0014c> in <aleab3d663f2403-f86390ab4e99d1c4e#e4af9bbaef9-b71791783b4e0b13b9986>:0 at System.Web.Services. Protocols.-SoapHttpClientProtocol.ReceiveRes- ponse (System. Net.WebResponse, System.Web.Services.Protocols.Soap-ClientMessage , System.Web.Services.Protocols.Soap- Extension [] ) <0x10225d920 + Ox001ef> in <aleab3d663f2403-f86390ab4e99d1c4e#e4af9bbaef9-b71791783b4e0b1369986>:0 at System.Web.Services.Protocols.-SoapHttpClientProtocol.AsyncGetRes- ponseDone (System.lAsyncResult) <0x10225d300 + 0x0021f> in <aleab3d663f2403f86390ab4e99d1-c4e#e4af9bbaef9b71791783b4e0b13-b9986>:0 ok Please help, someone has already had a similar problem, currently due to this problem you cannot log in to the application, greetings and thank you for your help.

0 How to detect wifi network change in iOS when the app is in background and suspended states? I want the iOS app to be notified whenever there is a change in network. For eg: I want the app to be notified when the device switches from WiFi-1 to WiFi-2. The app will be published on App Store. I tried using Hotspot Helper for this. It works perfectly. But in order to use Hotspot Helper we need to get an entitlement from Apple. Apple provides that entitlement only if we are creating hotspots which is not in our case. So, we cannot use Hotspot Helper.

I developed a iOS App, this App need to visit a local url. It can visit the url on iPhone 13 (iOS 15.4) and iPhone 14 Plus (iOS 16.5.1), but it can not visit the same url on iPhone 6s（iOS 15.8.1). The error message is 'NSURLErrorDomain Code=-1009'. 1). The url can be visited by Safari on iPhone 6s, so the network of iPhone 6s is fine. 2). The Local Network has enabled in the APP settings. 3). I notice that in iPhone Settings -> WLAN -> Apps Using WLAN & Cellular, my App information can be found on iPhone 13 and iPhone 14 Plus, and can not find my App information on iPhone 6s. How should I troubleshoot this issue? Thanks you! Follows are full error message. 2024-02-08 17:49:39.706240+0800 AstroeyeWiFi[1186:114419] Task .<8> finished with error [-1009] Error Domain=NSURLErrorDomain Code=-1009 "The Internet connection appears to be offline." UserInfo={_kCFStreamErrorCodeKey=50, NSUnderlyingError=0x280715c20 {Error Domain=kCFErrorDomainCFNetwork Code=-1009 "(null)" UserInfo={_NSURLErrorNWPathKey=unsatisfied (Denied over Wi-Fi interface), interface: en0, _kCFStreamErrorCodeKey=50, _kCFStreamErrorDomainKey=1}}, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask .<8>, _NSURLErrorRelatedURLSessionTaskErrorKey=( "LocalDataTask .<8>" ), NSLocalizedDescription=The Internet connection appears to be offline., NSErrorFailingURLStringKey=http://192.168.0.1:50628/form/getDeviceId, NSErrorFailingURLKey=http://192.168.0.1:50628/form/getDeviceId, _kCFStreamErrorDomainKey=1} [DNO][getDeviceSysId][Error] underlying(Alamofire.AFError.sessionTaskFailed(error: Error Domain=NSURLErrorDomain Code=-1009 "The Internet connection appears to be offline." UserInfo={_kCFStreamErrorCodeKey=50, NSUnderlyingError=0x280715c20 {Error Domain=kCFErrorDomainCFNetwork Code=-1009 "(null)" UserInfo={_NSURLErrorNWPathKey=unsatisfied (Denied over Wi-Fi interface), interface: en0, _kCFStreamErrorCodeKey=50, _kCFStreamErrorDomainKey=1}}, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask .<8>, _NSURLErrorRelatedURLSessionTaskErrorKey=( "LocalDataTask .<8>" ), NSLocalizedDescription=The Internet connection appears to be offline., NSErrorFailingURLStringKey=http://192.168.0.1:50628/form/getDeviceId, NSErrorFailingURLKey=http://192.168.0.1:50628/form/getDeviceId, _kCFStreamErrorDomainKey=1}), nil)

Xcode Version 15.2 in general is very, very slow when debugging. If I get to that, often, xcode just shows a message "Preparing iPhone 15 Pro Joride. Xcode will continue when the operation completes" This box will stay there for at least 3 min. Then it is follow by a message about a developer image not being able to get mounted: "Previous preparation error: The developer disk image could not be mounted on this device.. Error mounting image: 0xe8000115 (kAMDMobileImageMounterDevicePropertyQueryFailure: Failed to query device property.)" If I eventually do manage to debug my app, it is soooooo slow. The launchscreen is there for easily 20 seconds (I'm guessing debugger is trying to attach during this time). When there are breakpoints present at all, things just occur very very slowly, expecially when trying to PO variables. The app itself runs fine though. I've noticed there is a checkbox for this device that says 'Connect via network'. This clearly seems to be broken for my combination of factors, so I wanted to uncheck it. Not possible! For those of use with a similar experience, any suggestions? (I did try to power cycle both computer and iPhone, but that did not change much. Both devices are connected to the same home wifi which has no special setup or restrictions)

Hi, our account holder did the networking.multicast entitlement request on November 24th through the appropriate form: https://developer.apple.com/contact/request/networking-multicast but we never received any kind of answer, positive or negative. We also tried to submit again the request 3 weeks ago and still no answer. I already checked if the entitlement was granted without an answer and we don't have it. I tried to write also with the feedback assistant but no answer. What I can do to unblock this situation?

What is exactly the relay endpoint in relay server let relayEndpoint = NWEndpoint.url(URL(string: "https://relay.example.com")!) Is it the server that is already serving the requests ?

Hi, I have a strange problem. In my local network, I have some apple devices (including mac, iphone, ipad) and a windows computer. The windows pc and any of the apple devices can ping each other, while every two of the apple devices can't ping each other. Whether udp or tcp are in the same situation. As is the situation, the firewall/mask/local ip are not the problems. I can't use wireshark to debug, because there is not any packet between these apple devices. Does someone know what the problem it may be? Or could someone tell me how to debug this? Thanks in advance!

I'm interested in whether SOCKET APIS like bind, accept, and connect can seamlessly work with a mapped IPv6 address like 64:ff9b::103.135.122.10 or any other IPv4-mapped IPv6 addresses? I've consulted the following thread for reference and it is stated: We do not support under-the-sockets bump-in-API (RFC 3338) and we do not support 464XLAT... https://developer.apple.com/forums/thread/5643. If it can support, what is above thread about?

I am struggling to sort through the options for building an application that can send and receive messages peer-to-peer to any device connected to any network anywhere in the world. I know I will likely need a relay server to handle DNS and I will also need to handle changing IP addresses as mobile devices move around and their IP address changes. What I am puzzled about is I've read up on Bonjour and on the Network framework and it appears to me (and I may be wrong) that these capabilities only support either devices on the same local network, or devices that are in close proximity to one another. For an iOS application, what is the recommended service or framework to use to build the send/receive functionality in the app? Is it even possible? Thanks!

Detecting New WiFi Connection + WiFi Details What I want to accomplish: The app, including when backgrounded or suspended, creates a local notification (assuming the app has permission for notifications) when there is a new WiFi network being used and ideally being able to execute some small code to customize the notification. This code would also have access to SSID info, security type, etc., so the sort of info in NEHotspotNetwork. A number of apps seem able to do this but I am having trouble replicating what they are doing. What I’ve looked at or tried: Looking at “TN3111: iOS Wi-Fi API overview” https://developer.apple.com/documentation/technotes/tn3111-ios-wifi-api-overview Navigate an internet hotspot (NEHotspotHelper) Doesn’t look like NEHotspotHelper would provide the above functionality for detecting changes while backgrounded and it seems to indicate that the special entitlement com.apple.developer.networking.HotspotHelper would not be granted for this use case anyway. Add an accessory to the user’s network (Wireless Accessory Configuration (WAC) or HomeKit) Doesn’t seem relevant to my use case Peer-to-peer networking Doesn’t seem relevant to my use case Location tracking I don’t want to know my user’s location and Lookout and Norton 360 (just two of many examples) don’t request or have location permissions (or request any permissions for that matter except notifications) and are still able to obtain the WiFi network info without it as well as detect changes in the background. Current Wi-Fi network NEHotspotNetwork .fetchCurrent(completionHandler:) So this is the most obvious since it returns the info I want but it requires the following permissions or configurations that neither Lookout or Norton 360 are requesting and also I don’t see how this API would trigger a backgrounded app to run, more for when your app is in the foreground and able to run already. From Apple docs: “This method produces a non-nil NEHotspotNetwork object only when the current network environment meets all four of the following critieria: The app is using the Core Location API and has user’s authorization to access precise location. The app used the NEHotspotConfiguration API to configure the current Wi-Fi network. The app has active VPN configurations installed. The app has an active NEDNSSettingsManager configuration installed. This method also requires the app to have the Access Wi-Fi Information Entitlement, and produces nil if the app lacks this entitlement.” Once again, apps that are able to do what I want don't seem to have location permissions, no VPN profile, no DNS config, no hotspot config.... Additional things I’ve considered that are not mentioned in the above: Using NWPathMonitor works for identifying a change, doesn’t trigger when app backgrounded and no access to SSID or other WiFi info. What am I missing? Is there some API that I totally missed? Thank you! Colin