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iOS Support#125

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shellrow merged 1 commit intoshellrow:mainfrom
oscartbeaumont:ios-support
Jul 27, 2025
Merged

iOS Support#125
shellrow merged 1 commit intoshellrow:mainfrom
oscartbeaumont:ios-support

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@oscartbeaumont oscartbeaumont commented Jul 21, 2025 •
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I'm trying to use Iroh's mDNS discovery system on iOS which makes use of netdev internally and i'm getting linking errors like the following on iOS.

Error 
Undefined symbols for architecture arm64:
 "_SCDynamicStoreCopyProxies", referenced from:
     system_configuration::dynamic_store::SCDynamicStore::get_proxies::h6a343615dceb13a0 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCDynamicStoreCreateRunLoopSource", referenced from:
     system_configuration::dynamic_store::SCDynamicStore::create_run_loop_source::h93b5556a12a80d61 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCDynamicStoreCreateWithOptions", referenced from:
     system_configuration::dynamic_store::SCDynamicStore::create::h3ce4e044029009ce in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkInterfaceCopyAll", referenced from:
     system_configuration::network_configuration::get_interfaces::ha04ccafccab54eb0 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkInterfaceGetBSDName", referenced from:
     system_configuration::network_configuration::SCNetworkInterface::bsd_name::hd9b55f459221161a in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkInterfaceGetInterfaceType", referenced from:
     system_configuration::network_configuration::SCNetworkInterface::interface_type_string::hb6687821a5da7aa0 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkInterfaceGetLocalizedDisplayName", referenced from:
     system_configuration::network_configuration::SCNetworkInterface::display_name::h5130bf6a702c608d in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkReachabilityCreateWithAddress", referenced from:
     _$LT$system_configuration..network_reachability..SCNetworkReachability$u20$as$u20$core..convert..From$LT$core..net..socket_addr..SocketAddr$GT$$GT$::from::h11d2dc9dbf0019f4 in libapp.a[669](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.0.rcgu.o)
 "_SCNetworkReachabilityCreateWithAddressPair", referenced from:
     system_configuration::network_reachability::SCNetworkReachability::from_addr_pair::h21e63973591ed9e9 in libapp.a[669](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.0.rcgu.o)
 "_SCNetworkReachabilityCreateWithName", referenced from:
     system_configuration::network_reachability::SCNetworkReachability::from_host::h42c8e3636d2f09ce in libapp.a[669](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.0.rcgu.o)
 "_SCNetworkReachabilityGetFlags", referenced from:
     system_configuration::network_reachability::SCNetworkReachability::reachability::ha2b7da40f142e57c in libapp.a[669](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.0.rcgu.o)
 "_SCNetworkReachabilityScheduleWithRunLoop", referenced from:
     system_configuration::network_reachability::SCNetworkReachability::schedule_with_runloop::h0924883a649e72b1 in libapp.a[669](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.0.rcgu.o)
 "_SCNetworkReachabilityUnscheduleFromRunLoop", referenced from:
     system_configuration::network_reachability::SCNetworkReachability::unschedule_from_runloop::hb1e77b2accf67b70 in libapp.a[669](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.0.rcgu.o)
 "_SCNetworkServiceCopyAll", referenced from:
     system_configuration::network_configuration::SCNetworkService::get_services::h2a5e4a4332a0b8b1 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkServiceGetEnabled", referenced from:
     system_configuration::network_configuration::SCNetworkService::enabled::h94edd3799ad52259 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkServiceGetInterface", referenced from:
     system_configuration::network_configuration::SCNetworkService::network_interface::h2a32bc99a8033ee1 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkServiceGetServiceID", referenced from:
     system_configuration::network_configuration::SCNetworkService::id::h90e58d24d1cbbe1e in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkSetCopyCurrent", referenced from:
     system_configuration::network_configuration::SCNetworkSet::new::h0539deb00ca38053 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCNetworkSetGetServiceOrder", referenced from:
     system_configuration::network_configuration::SCNetworkSet::service_order::h8d036015e25a1b0c in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_SCPreferencesCreate", referenced from:
     system_configuration::preferences::SCPreferences::new::h4157260b14a766cc in libapp.a[669](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.0.rcgu.o)
 "_kSCNetworkInterfaceType6to4", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeBluetooth", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeBond", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeEthernet", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeFireWire", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeIEEE80211", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeIPSec", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeIPv4", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeL2TP", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeModem", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypePPP", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypePPTP", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeSerial", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeVLAN", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
 "_kSCNetworkInterfaceTypeWWAN", referenced from:
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
     system_configuration::network_configuration::SCNetworkInterfaceType::from_cfstring::hbc5c1ee2b489f123 in libapp.a[670](system_configuration-76dfe2d322c5ec7f.system_configuration.dcbc5f29dfb81df1-cgu.1.rcgu.o)
ld: symbol(s) not found for architecture arm64

This is due to netdev using functionality from SystemConfiguration which is not supported on iOS. For example SCNetworkInterfaceCopyAll which is used via network_configuration::get_interfaces.

This PR adds a special implementation for all Apple operating systems that aren't macOS. I can't verify on anything other than iOS but we can be pretty sure the current code doesn't work as Apple report SCNetworkInterfaceCopyAll to only be supported on macOS.

@shellrow
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shellrow commented Jul 27, 2025

Thanks for the fix and explanation!

@shellrow shellrow merged commit b6ef275 into shellrow:main Jul 27, 2025
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@oscartbeaumont oscartbeaumont deleted the ios-support branch July 28, 2025 04:57
@DeTeam
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DeTeam commented Aug 12, 2025 •
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@oscartbeaumont I was using previous version of netdev, everything seem to work fine without these changes 🤔 . Adding "SystemConfiguration" to the framework list was necessary though *

@oscartbeaumont
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oscartbeaumont commented Aug 12, 2025

Can you include some more information about what platform your testing on?

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DeTeam commented Aug 13, 2025

@oscartbeaumont I'm using iOS 18.6 and some older versions previously, device - iPhone 11, netdev v0.35.2

In order to make it work I had to add SystemConfiguration to the framework dependencies in xcode (or xcodegen in my case)

@shellrow
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shellrow commented Sep 6, 2025 •
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Thanks again for this PR and the discussion! 🙏

Recap:

  • SCNetworkInterfaceCopyAll (and related APIs) are macOS-only, so restricting those paths was the right move.
  • But the change also disabled non-SC logic that was previously working on iOS.

I’ve now restored that path in the ios-support and tested successfully on real devices:

  • iPhone 16 (iOS 18.6.2)
  • iPhone SE 3rd Gen (iOS 18.1.1)

However, SCNetworkInterfaceGetLocalizedDisplayName and SCNetworkInterfaceGetInterfaceType are still macOS-only.
We may need to look for alternatives.

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@oscartbeaumont @shellrow @DeTeam