Hello, es_event_mount_t includes statfs structure. This structure has the field 'f_type' which defines type of filesystem. However, man page says nothing about possible values of this field. What is the best way to define file system type? Can I use 'f_type' or 'f_fstypename'? If so, are there any constants in header files which can be used? Thank you for your help!

This crash report for one of my apps was downloaded by Xcode. Apparently the app crashed while releasing an object of type Scan.File, which is a Swift class held in an array in the Scan.Directory class. I'm not doing any manual reference counting or low-level stuff with that object. What could cause such a crash? crash.crash

I’ve been testing the iOS Peripheral throughput using a modified version of Apple’s “Transferring Data Between Bluetooth Low Energy Devices” sample app. I attempted to send 1 MB (1,048,576 bytes) of data in 512-byte notification packets from a Peripheral iPhone (iPhone SE 3rd gen) to a Central iPhone (iPhone 13 Pro). The transfer took 40.7 seconds, resulting in an effective throughput of approximately 206.11 kbps. I noticed that nearly all the delay occurs while waiting for the peripheralManagerIsReady(toUpdateSubscribers:) callback after the second packet is sent. I’ve seen reports of throughput around 1300 kbps on 2M PHY (or 700 kbps on 1M PHY). Could anyone advise how to optimize my Peripheral implementation to achieve throughput closer to 1300 kbps? Thank you!

Hi Folks, We are reading the USB device data from our app using libusb/iokit libraries. Before updating the MacOS to the 15.3 we never faced any issue but after updating OS to 15.3 Sequoia we started facing issue to access the USB device's information. We are not getting the device endpoints for the matching service and fails with below error- Error:Failed to create IOUSBHostObject. with reason: IOServiceOpen failed. Respective code snippet- service = IOServiceGetMatchingService(kIOMasterPortDefault, matchingDictionary); IOUSBHostInterface* interface = [[IOUSBHostInterface alloc] initWithIOService:service options:IOUSBHostObjectInitOptionsDeviceCapture queue:*queue error:&error interestHandler:nil]; We get the denial message during accessing the IOService error 23:17:30.691934-0800 kernel 41 duplicate reports for Sandbox: spotlightknowledged(1399) deny(1) mach-lookup com.apple.diagnosticd error 23:17:30.691945-0800 kernel System Policy: com.prograde.pgdrefreshpro.helpe(70515) deny(1) iokit-open-service IOUSBHostInterface Also when we checked the IOUSBHOST logs we can see pipes are stalled while running the RefreshPro app as below- 2025-02-05 22:06:31.838141-0800 0x25913e Error 0x0 0 0 kernel: (IOUSBHostFamily) AppleUSBIORequest: AppleUSBIORequest::complete: device 8 (SD PG05.5@08210000) endpoint 0x00: status 0xe0005000 (pipe stalled): 0 bytes transferred We need an assistance here to know what exactly could be the cause and how can we elevate the permissions to access the USB device on MacOS15.3. Do we need other entitlements? As we never faced such issue with our certificate and Identifier on any MacOS versions and with the current entitlements we have. Do we need to include any entitlement in the code? Thanks.

Hello @all I'm develop a DriverKit driver extension and without entitlement checks by OS everything runs fine. But if the entitlements check is enabled in the NVRAM then I get an error due connecting my IOUserClient instance. Which entitlements are really and exactly required for my driver? My driver contains: one IOUserClient instance and multiple IOUserSerial instances The bundle identifier of the driver ist: org.eof.tools.VSPDriver The bundle identifier of the client app org.eof.tools.VSPInstall My entire source code is available on GitHub if any one want to dive deep in :) kernel[0:5107] () [VSPDriver]: NewUserClient called. kernel[0:5107] () [VSPDriver]: CreateUserClient: create VSP user client from Info.plist. kernel[0:5107] () [VSPUserClient]: init called. kernel[0:5107] () [VSPUserClient]: init finished. kernel[0:5107] () [VSPDriver]: CreateUserClient: check VSPUserClient type. kernel[0:5107] () [VSPDriver]: CreateUserClient: success. kernel[0:5107] () [VSPDriver]: NewUserClient finished. kernel[0:5107] () [VSPUserClient]: Start: called. kernel[0:5107] () [VSPUserClient]: User client successfully started. kernel[0:389f] DK: VSPUserClient-0x100001127:UC failed userclient-access check, needed bundle ID org.eof.tools.VSPDriver kernel[0:389f] DK: VSPUserClient-0x100001127:UC entitlements check failed kernel[0:5107] () [VSPUserClient]: Stop called. kernel[0:5107] () [VSPUserClient]: User client successfully removed. kernel[0:5107] () [VSPUserClient]: free called. Here my drivers entitlement file: <?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>com.apple.developer.driverkit</key> <true/> <key>com.apple.developer.driverkit.allow-third-party-userclients</key> <true/> <key>com.apple.developer.driverkit.family.serial</key> <true/> </dict> </plist> Here my drivers Info.plist file <?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>CFBundleDevelopmentRegion</key> <string>$(DEVELOPMENT_LANGUAGE)</string> <key>CFBundleExecutable</key> <string>$(EXECUTABLE_NAME)</string> <key>CFBundleIdentifier</key> <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string> <key>CFBundleInfoDictionaryVersion</key> <string>6.0</string> <key>CFBundleName</key> <string>$(PRODUCT_NAME)</string> <key>CFBundlePackageType</key> <string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string> <key>CFBundleShortVersionString</key> <string>1.0</string> <key>CFBundleVersion</key> <string>1</string> <key>NSHumanReadableCopyright</key> <string>Copyright © 2025 by EoF Software Labs</string> <key>OSBundleUsageDescription</key> <string>Provide virtual serial port</string> <key>com.apple.developer.driverkit</key> <true/> <key>com.apple.developer.driverkit.allow-any-userclient-access</key> <true/> <key>com.apple.developer.driverkit.communicates-with-drivers</key> <true/> <key>com.apple.developer.system-extension.redistributable</key> <true/> <key>OSBundleLibraries</key> <dict> <key>com.apple.iokit.IOSerialFamily</key> <string>1.0</string> </dict> <key>IOKitPersonalities</key> <dict> <key>VSPDriver</key> <dict> <key>CFBundleIdentifier</key> <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string> <key>CFBundleIdentifierKernel</key> <string>com.apple.kpi.iokit</string> <key>IOMatchCategory</key> <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string> <key>IOProviderClass</key> <string>IOUserResources</string> <key>IOResourceMatch</key> <string>IOKit</string> <key>IOProbeScore</key> <integer>0</integer> <key>IOClass</key> <string>IOUserService</string> <key>IOUserClass</key> <string>VSPDriver</string> <key>IOUserServerName</key> <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string> <key>UserClientProperties</key> <dict> <key>IOClass</key> <string>IOUserUserClient</string> <key>IOUserClass</key> <string>VSPUserClient</string> </dict> <key>SerialPortProperties</key> <dict> <key>CFBundleIdentifierKernel</key> <string>com.apple.driver.driverkit.serial</string> <key>IOProviderClass</key> <string>IOSerialStreamSync</string> <key>IOClass</key> <string>IOUserSerial</string> <key>IOUserClass</key> <string>VSPSerialPort</string> <key>HiddenPort</key> <false/> <key>IOTTYBaseName</key> <string>vsp</string> <key>IOTTYSuffix</key> <string>0</string> </dict> </dict> </dict> </dict> </plist> Here the entitlements of the client 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>com.apple.developer.driverkit</key> <true/> <key>com.apple.developer.driverkit.allow-third-party-userclients</key> <true/> <key>com.apple.developer.driverkit.communicates-with-drivers</key> <true/> <key>com.apple.developer.shared-with-you</key> <true/> <key>com.apple.developer.system-extension.install</key> <true/> <key>com.apple.security.application-groups</key> <array> <string>$(TeamIdentifierPrefix).org.eof.apps</string> </array> </dict> </plist> Here the Info.plist of the client app: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>CFBundleDevelopmentRegion</key> <string>$(DEVELOPMENT_LANGUAGE)</string> <key>CFBundleExecutable</key> <string>$(EXECUTABLE_NAME)</string> <key>CFBundleIdentifier</key> <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string> <key>CFBundleInfoDictionaryVersion</key> <string>6.0</string> <key>CFBundleName</key> <string>$(PRODUCT_NAME)</string> <key>CFBundlePackageType</key> <string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string> <key>CFBundleShortVersionString</key> <string>1.0</string> <key>CFBundleVersion</key> <string>1</string> <key>LSMinimumSystemVersion</key> <string>$(MACOSX_DEPLOYMENT_TARGET)</string> <key>com.apple.developer.driverkit</key> <true/> <key>com.apple.developer.driverkit.install</key> <true/> <key>com.apple.developer.system-extension.install</key> <true/> <key>com.apple.developer.system-extension.uninstall</key> <true/> <key>com.apple.developer.driverkit.userclient-access</key> <array> <string>VSPDriver</string> </array> <key>com.apple.private.driverkit.driver-access</key> <array> <string>VSPDriver</string> </array> <key>com.apple.security.temporary-exception.iokit-user-client-class</key> <array> <string>IOUserUserClient</string> </array> </dict> </plist>

I have 2 XPC clients and an XPC server. One of the XPC clients is a binary-helper that serves as a native messaging host for the browserExtension. The other XPC client sends a specific event to the XPC server, which then triggers a Darwin notification. The binary-helper observes this Darwin notification and sends a response to the browserExtension. Currently, we're considering two options to communicate the response from binary-helper to browserExtension: Polling: Every 5 seconds, the browserExtension checks for a response. Darwin Notifications: The binary-helper sends a message to the browserExtension as soon as it observes the Darwin notification. I'm wondering if Darwin notifications are fast enough to reliably deliver this response to the browserExtension in real time, or if polling would be a more reliable approach. Any insights or experiences with using Darwin notifications in a similar scenario would be greatly appreciated.

Hi. I am developing a custom virtual file system and facing such behaviour: Upon using some graphical apps, for example Adobe Media Encoder, attempting to navigate inside my filesystem deeper than root folder will fail - nothing will happen on "double click" on that subfolder. Another problem, is that whether I try to re-navigate into root directory, it will be empty. The problem is not present for most GUI apps - for example navigation inside Finder, upon choosing download path for file in Safari, apps like Microsoft Word, Excel and other range of applications work totally correctly. A quick note here. From what I have seen - all apps that work correctly actually have calls to VFS_VGET - a predefined vfs layer hook. Whether the Adobe Media Encoder does not call for it - neither in my filesystem, nor in Samba, so my guess is that some applications have different browsing and retrieving algorithm. Is there anything I should examine further ? Default routines (vnop_open, vnop_lookup, vnop_readdir, vnop_close) behave as expected, without any errors. P.S. This application (Adobe Media Encoder) works properly on Samba.

a few times, for reasons unknown to me, asr restore processes broke with error 49244. Basically, the process get interrupted, most cases when is about to finish, with just a laconic message saying "Volume replication failed - error 49244". Where can I get information on this error, what exactly means, what causes it and more important, how to troubleshoot it. Any help will be appreciated, Thanks!!

Dear Apple Developer Community,, I understand that RPC is not the recommended IPC mechanism for communication between an Endpoint Security (ES) Extension or a Network System Extension and a daemon. However, I would like to clarify whether Apple currently allows the use of RPC (clnt_call()) as an IPC method for these extensions to communicate event details to a daemon. Given that ES Extensions operate in a sandboxed environment, they may lack the necessary permissions to create network sockets (e.g., clnt_call() over TCP) on a properly signed macOS system with SIP enabled (macOS Sequoia). Looking for clarification on the following points: Whether RPC (clnt_call()) is currently supported as an IPC mechanism for ES Extensions or Network System Extensions? If supported, does Apple have any plans to deprecate RPC-based IPC (such as clnt_call()) in the near future for these extensions? I would appreciate any insights or references to official documentation on this topic.

Our product is using IOKit framework for monitoring USB device activities. We have used IOKit framework for getting the notification for USB plugin and un-plugins. With the macOS version 15.3 we are started seeing issue with it. When the notification is received during USB plugin/connection, we are unable to get IOUSBDeviceInterface object which will be used for further processing. Currently we are seeing the below error every time, while trying to create the IO plugin interface using IOCreatePlugInInterfaceForService API:
 create plugin Error: (0xe00002be): (iokit/common) resource shortage Due to this the we are unable to proceed with the flow further and the entire flow is broken. These logics work fine in macOS version 15.2 and lower versions without any issues. logic used: USBDevice::initInterfaceInterfaceByIOService(io_service_t entry) { IOCFPlugInInterface** plugInInterface = NULL; IOUSBInterfaceInterface** interface = NULL; SInt32 score = 0; mach_error_code err = IOCreatePlugInInterfaceForService(entry, kIOUSBInterfaceUserClientTypeID, kIOCFPlugInInterfaceID, &plugInInterface, &score); if ((err != 0) || (!plugInInterface)) { os_log_error(OS_LOG_DEFAULT, "Unable to create plugin \n"); return nullptr; } auto result = (*plugInInterface)->QueryInterface(plugInInterface, CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID), (LPVOID*)&interface); (*plugInInterface)->Release(plugInInterface); if (result || !interface) { os_log_error(OS_LOG_DEFAULT, "Unable to create interface \n"); return nullptr; } return interface; }

Can anyone advice on thread safety of IOHIDDeviceSetReport calls in IOKit framework? Any pointers to documentation covering the topic?

On macOS, the Finder allows to connect to a server and store the login credentials. When creating a bookmark to a file on a server and resolving it again, the server is mounted automatically (unless I provide the option URL.BookmarkResolutionOptions.withoutMounting). I just tried connecting to my Mac from my iPad via SMB in the Files app and storing a bookmark to a file on the server, but disconnecting the server and trying to resolve the bookmark throws the error (I translated the English text from Italian): Error Domain=NSFileProviderErrorDomain Code=-2001 "No file provider was found with the identifier "com.apple.SMBClientProvider.FileProvider"'" UserInfo={NSLocalizedDescription=No file provider was found with the identifier "com.apple.SMBClientProvider.FileProvider"., NSUnderlyingError=0x302a1a340 {Error Domain=NSFileProviderErrorDomain Code=-2013 "(null) "}} Every time I disconnect and reconnect to the server, selecting the same file returns a different path. The first time I got /private/var/mobile/Library/LiveFiles/com.apple.filesystems.smbclientd/WtFD3Ausername/path/to/file.txt The next time WtFD3A changed to EqHc2g and so on. Is it not possible to automatically mount a server when resolving a bookmark on iOS? The following code allows to reproduce the issue: struct ContentView: View { @State private var isPresentingFilePicker = false @AppStorage("bookmarkData") private var bookmarkData: Data? @State private var url: URL? @State private var stale = false @State private var error: Error? var body: some View { VStack { Button("Open") { isPresentingFilePicker = true } if let url = url { Text(url.path) } else if bookmarkData != nil { Text("couldn't resolve bookmark data") } else { Text("no bookmark data") } if stale { Text("bookmark is stale") } if let error = error { Text("\(error)") .foregroundStyle(.red) } } .padding() .fileImporter(isPresented: $isPresentingFilePicker, allowedContentTypes: [.data]) { result in do { let url = try result.get() if url.startAccessingSecurityScopedResource() { bookmarkData = try url.bookmarkData() } } catch { self.error = error } } .onChange(of: bookmarkData, initial: true) { _, bookmarkData in if let bookmarkData = bookmarkData { do { url = try URL(resolvingBookmarkData: bookmarkData, bookmarkDataIsStale: &amp;stale) } catch { self.error = error } } } } }

Hi all, I use the FileManager trashIitem function to put a file in the trash. If it is only one file, then the option to put it back is available. If, however, several files are deleted, the option to put it back is only available for the first deleted file. All others cannot be put back. The problem has been known for at least 10 years. See Put back only works for the first file. NSWorkspace recycle has the same problem. It seems to be due to .DS_Store in the trash. The files that are in the trash are stored there. This may also lead you to believe that the trashItem function is working properly because the deleted files are still in the .DS_Store file. If I call trashItem or recycle several times and wait 2 seconds between calls, then the option to put it back is available for all of them. That obviously can't be the solution. Waiting less than 2 seconds only offers to put the first file back. So trashItem and recycle are the same as remove, with the difference that you can look at the files in the trash can again, but not put them back. Are there other ways? The Finder can also delete multiple files and put them all back.

On macOS, we have didMountNotification but there doesn't seem to be an equivalent for iOS. Is there a way to be notified when a volume is mounted on iOS? I would like to use it in my iOS app I'm currently porting from macOS, which starts a synchronization from the volume (which has been previously selected in a NSOpenPanel) as soon as it's mounted.

Hi: Our group would like to forward logs from our Macs in our integration/production environments to a central server. I haven't found any good documentation for this yet. Can anyone point me to a way to forward to a Graylog or syslog-based server? We're not against cobbling together an app or script using "log stream" to send the info ourselves, but that seems extreme for what I'd think is a very common use case.

Crashed: com.apple.libcache.memorypressure 0 libsystem_platform.dylib 0x4ce4 _os_unfair_lock_recursive_abort + 36 1 libsystem_platform.dylib 0x1e1c _os_unfair_lock_lock_slow + 308 2 libcache.dylib 0x3a50 cache_remove_all + 56 3 CoreFoundation 0xd8d18 -[NSCache dealloc] + 84 4 Photos 0x505e4 -[PHSafeNSCacheDelegateReflector cache:willEvictObject:] + 216 5 CoreFoundation 0xbe524 __NSCacheCallDelegateWillEvictObjectCallbackWithValue + 76 6 CoreFoundation 0xbe43c __NSCacheValueRelease + 104 7 libcache.dylib 0x3998 _value_entry_remove + 120 8 libcache.dylib 0x3898 _entry_evict + 188 9 libcache.dylib 0x37c8 _evict_last + 108 10 libcache.dylib 0x3108 _cache_enforce_limits + 104 11 libcache.dylib 0x16f4 ___cache_handle_memory_pressure_event_block_invoke + 92 12 libdispatch.dylib 0x13394 _dispatch_block_async_invoke2 + 148 13 libdispatch.dylib 0x3fa8 _dispatch_client_callout + 20 14 libdispatch.dylib 0xd76c _dispatch_workloop_invoke + 2172 15 libdispatch.dylib 0x1738c _dispatch_root_queue_drain_deferred_wlh + 288 16 libdispatch.dylib 0x16bd8 _dispatch_workloop_worker_thread + 540 17 libsystem_pthread.dylib 0x3680 _pthread_wqthread + 288 18 libsystem_pthread.dylib 0x1474 start_wqthread + 8

Hello, I am working on application which licenses depends on number of user sessions which logged in. The problem is the application "Migration Assistant" creates new session for "Setup User" and it leads to licenses leak. # cat /etc/passwd | grep Setup _mbsetupuser:*:248:248:Setup User:/var/setup:/bin/bash Are there any difference between _mbsetupuser and users which is created by administrator via "System Settings" or dscl? (e.g. specific user id range which using is restricted by system). Are there any way to detect _mbsetupuser and be sure this user is predefined during system install? Thank you in advance, Pavel

When my app launches, it makes maybe 9 or so network requests to load initial data. It also reads some data from disc. Sporadically, I'm seeing an issue where some of the network requests succeed, but anything involving reading from disc does not load immediately. I'm able to move around in the app, tap buttons, swap tabs, swipe pages, so my main actor isn't stuck. Other data that don't involve disc reading / writing is also blank. About 2 minutes in, suddenly everything loads (both stuff from disc and stuff from the network), nearly instantly, the way it should have done when the app launched. Server logs show more initial network requests succeed than we can see data loaded in the app, and then about 2 minutes later, there's a flood of the rest of the requests which then succeed. The responses to some of these initial network requests cause us to make other network requests, and the sever sees some of those start right away. However, other consequences of these first requests are to touch the disc (to search for manually-cached data), and anything that is supposed to happen after that does not succeed until the 2 minute mark. But what bothers me is some things in the app which don't touch the disc also seem to have successful network requests. I'm seeing it on an iPhone 14Pro running iOS 18.2.1, with 607 GB of disc space available. When I take screenshots of the loading screens in my app during the apparent freeze, the clock in the screenshots are right - they reflect the clock at the moment I took the screenshot, but the EXIF data in all dozen or so images shows the exact second 2 minutes later when the server gets the resulting flood of network requests. Screenshots taken after the freeze is over have exif timestamps that match the screenshots, as short as 5 seconds after the freeze ends. The screenshot file names, though sequential, are out of order. for instance, some screenshots from 12:58 have file names numbered after screenshots taken at 12:59. but not all are out of order. This seems like disc contention has spread outside the app, and is impacting the system writing the images to disc. How do I diagnose a cause for this? How does disc contention affect the networking? I have caching turned off for my network requests. We only have a manual image cache, but I don't know how that would stall the display of data that should fetch and display without attempting to hit the image cache. This happens maybe a couple of times a day for some people, maybe once every couple of weeks for others, but of course, it never when we're trying to debug it.

Hey fellow developers, I’m developing an app that mounts network shares (SMB, AFP, Secure WebDAV, CIFS) using the NetFSMountURLAsync function. Recently, mounting WebDAV shares has stopped working — it fails with error code 22, but I can’t find a definitive reason for the failure. It simply doesn’t work. However, using Finder to connect to the same WebDAV share works flawlessly, so it doesn’t appear to be a server-side issue. Strange Behavior I’ve noticed something interesting: If I create a new Xcode project and set Signing Certificate to Sign to Run Locally, the app mounts the WebDAV share without any issues. As soon as I change the signing option to anything else (e.g., Development), the share no longer mounts, and the app fails with error 22. Even if I switch back to Sign to Run Locally, the app remains broken and refuses to mount the share. Rebuilding the app, restarting Xcode, and clearing derived data/caches do not restore functionality. The only workaround I’ve found is to create a new Xcode project and copy the code over. Additionally: Mounting SMB and AFP shares always works without issues. The app is properly sandboxed. My certificates are valid until at least 2027. Granting the app Full Disk Access does not resolve the issue. System Log Insights Looking at the system log, I found several mounting-related messages. On failure, one stands out: System Policy: webdavfs_agent() deny(1) file-mount &lt;Path to the mount directory in the Documents directory of the example project&gt; Questions Does anyone have any idea how to debug or resolve this issue? Is there a way to reset the example project to a working state? Are there any caches or system states I might have missed? I’d prefer not to recreate all my certificates and configurations, as I don’t see any reason why they would affect only WebDAV mounting while everything else works fine. Reproducing the Issue I’ve created a minimal SwiftUI example to reproduce the problem. Just create a new macOS SwiftUI project, replace ContentView with my code, update the details to match your WebDAV share, and enable Outgoing Network Connections in the entitlements. Any help or insights would be greatly appreciated! Example Code import SwiftUI import NetFS struct ContentView: View { let mounter = WebDAVMounter() var body: some View { VStack { Button("Test mount") { test() } } .padding() } func test() { mounter.mount() } } class WebDAVMounter { private var requestID: AsyncRequestID? func mount() { let username = &lt;# username #&gt; let password = &lt;#password#&gt; let serverURL = URL(string: "&lt;#https://webfiles/Work~Home#&gt;")! let usedMountPoint = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first! let openOptions = NSMutableDictionary() openOptions[kNAUIOptionKey] = kNAUIOptionNoUI let mountOpts = NSMutableDictionary() mountOpts[kNetFSSoftMountKey] = true print("server URL: \(serverURL) usedMountPoint: \(usedMountPoint) username: \(username) password: \(password) sessionOpts: \(openOptions) mountOptions \(mountOpts)") NetFSMountURLAsync(serverURL as CFURL, usedMountPoint as CFURL, username as CFString?, password as CFString?, openOptions as CFMutableDictionary, mountOpts as CFMutableDictionary, &amp;requestID, DispatchQueue.main, { status, asyncRequestId, mountedDirs in print("mount_report: \(status), mountedDirs: \(String(describing: mountedDirs))")}) } }

The Developer documentation for IOKit marks it as available for iOS 16+ but I had a hard time finding a way to import it into an iOS project. I finally managed to do that using a bridging header file and iokit_linking.hpp. Why is it that hard to make it work on iOS? Is it okay to do it this way? If I use any IOKit methods and/or properties in my app will I be able to submit it to the App Store? Thanks.