Add OpenBSD support in System.Net.NetworkInformation - #129279

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rzikm merged 9 commits into
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sethjackson:port-sys-netinfo-openbsd
Jun 24, 2026
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Add OpenBSD support in System.Net.NetworkInformation#129279
rzikm merged 9 commits into
dotnet:mainfrom
sethjackson:port-sys-netinfo-openbsd

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@sethjackson

@sethjacksonsethjackson commented Jun 11, 2026•
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There is already support in System.Native for this. Just need to enable it in the managed layer for OpenBSD.

Note that FreeBSD includes what appears to be a spurious FreeBSD specific Interop.Libraries.cs file which only contains the MsQuic constant and since that doesn't appear to be used in System.Net.NetworkInformation I haven't included it here and msquic won't work as it stands on OpenBSD today anyways.

Contributes to #124911.

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am11 commented Jun 11, 2026•
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Did you try running its tests on the device? If not, bootstrap docs in main branch have steps to build single library with zip archive, copy the zip archive and testhost from host to OpenBSD machine and invoke RunTests.sh command mentioned in the docs.

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sethjackson commented Jun 11, 2026

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I did not run tests but I’ll look at the docs and run them and post back.

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sethjackson commented Jun 12, 2026•
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.

What is involved in updating that to 7.9 besides updating the cross root FS stuff in dotnet/arcade?

On 7.8 the tests fail with the following:

System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.

A longer trace:

System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing [FAIL]
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.
Stack Trace:
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0/System.Net.NetworkInformation.notsupported.cs(548,0): at System.Net.NetworkInformation.TcpConnectionInformation..ctor()
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/SimpleTcpConnectionInformation.Unix.cs(8,0): at System.Net.NetworkInformation.SimpleTcpConnectionInformation..ctor(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, TcpState state)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(265,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseTcpConnectionInformationFromLine(String line)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(71,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseActiveTcpConnectionsFromFiles(String tcp4ConnectionsFile, String tcp6ConnectionsFile)
/runtime/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/ConnectionsParsingTests.cs(48,0): at System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/runtime/src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs(1188,0): at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
/runtime/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(37,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/runtime/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

So not entirely sure what I did wrong here? I did the cross build and test packaging from my branch that has this patch.

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@sethjackson

sethjackson commented Jun 12, 2026

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Oh oops. I think I figured it out. I need to add $(NetCoreAppCurrent)-openbsd to <TargetFrameworks> as well right?
Here https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L4?

Because otherwise we hit this?
https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L12

@am11

am11 commented Jun 12, 2026

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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.

It is best to start with "lowest version which is not out of support" and that version is 7.8. What is the error on 7.9? Lets discuss it in main thread #124911.

PlatformNotSupportedException

When in doubt, piggyback on git grep -i freebsd -- ':/src/libraries/System.Net.NetworkInformation'

@sethjackson

sethjackson commented Jun 13, 2026•
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So I need to add openbsd to <TargetFrameworks> so that the <TargetPlatformIdentifier> gets set properly with:

<TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>

So that the Unix/BSD specific files get included in the build.

However when I do that I get the following:

Build FAILED.
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0-openbsd/System.Net.NetworkInformation.AssemblyInfo.cs(30,12): error CA1418: The platform 'openbsd' is not a known platform name (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1418) [/runtime/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj::TargetFramework=net11.0-openbsd]

And I'm not really sure how to fix this. I trapsed around in the linked docs and in the MSBuild repo but I didn't see anything FreeBSD specific that would make this work so not sure how to fix this for OpenBSD. Any ideas @am11?

@am11

am11 commented Jun 13, 2026•
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Add openbsd after

runtime/eng/versioning.targets

Line 86 in f363796

<SupportedPlatformCondition="'$(TargetPlatformIdentifier)' == 'haiku'"Include="Haiku" />

We don't have OSPlatform.OpenBSD API yet, so any upcoming platform which is not yet released needs to be created manually there, so it can call OSPlatform.Create("OPENBSD") instead of OSPlatform.OpenBSD (FreeBSD has mileage in dotnet since 2016-17, so it doesn't have those issues; illumos/solaris/haiku are on this not-yet-release plan).

@sethjackson

sethjackson commented Jun 14, 2026

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Got it. That fixed it. I didn't see FreeBSD in that file so I didn't add it originally and OperatingSystem.OpenBSD exists but I forgot it is internal vs public.

I'm assuming I should add the change to versioning.targets here in this PR correct? I don't see that file in http://github.com/dotnet/arcade

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Yes, this PR is the correct place for it; it's the first time we are building a platform-aware library where this validation kicks in.

Also, when you will run the tests, some of them will fail, you may need to sprinkle some TestPlatforms.OpenBSD attribute condition or if (!OSPlatform.Create("OPENBSD"))in C# code to skip them. You will need to make some understanding why those failed/skipped and whether that's expected. In case that's not expected (there is some bug), you can either fix it as part of this PR or open an issue then add this attribute [ActiveIssue("https://github.com/dotnet/runtime/issues/<your issue number>", TestPlatforms.OpenBSD)].

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OperatingSystem.OpenBSD exists but I forgot it is internal vs public.

There was a typo in my comment I've edited; it was meant to be OSPlatform.OpenBSD and OSPlatform.Create("OPENBSD).

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I don't see that file in http://github.com/dotnet/arcade

Arcade shared directory is eng/common which gets autosync by bot: https://github.com/dotnet/runtime/blob/a3359b88167e537ef31281887bb259461391f8f6/eng/common/README.mdversioning.targets is outside of it.

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am11 commented Jun 15, 2026

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You can merge sethjackson#1 and that change will show up here. With those changes, all tests are appropriately skipped and others passing.

/home/am11/th/artifacts/bin/testhost/net11.0-openbsd-Debug-x64/dotnet exec --runtimeconfig System.Net.NetworkInformation.Functional.Tests.runtimeconfig.json --depsfile System.Net.NetworkInformation.Functional.Tests.deps.json xunit.console.dll System.Net.NetworkInformation.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
~/system.netinfo ~/system.netinfo
Discovering: System.Net.NetworkInformation.Functional.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Net.NetworkInformation.Functional.Tests (found 64 of 99 test cases)
Starting: System.Net.NetworkInformation.Functional.Tests (parallel test collections = on [5 threads], stop on fail = off)
Finished: System.Net.NetworkInformation.Functional.Tests
=== TEST EXECUTION SUMMARY ===
System.Net.NetworkInformation.Functional.Tests Total: 229, Errors: 0, Failed: 0, Skipped: 0, Time: 1.820s

@sethjackson
sethjacksonforce-pushed the port-sys-netinfo-openbsd branch 2 times, most recently from c45029e to cf3a04aCompareJune 15, 2026 22:38
@sethjackson
Merge pull request#1from am11/feature/port/openbsd-networkinfo
2f1b02d
Implement missing pieces for NetworkInformation
@sethjackson

sethjackson commented Jun 15, 2026•
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Oh nice! I doubt I would have figured that out myself. I merged it. Thanks!

One thing I noticed is that this file:
https://github.com/dotnet/runtime/blob/main/src/tests/Common/XUnitWrapperGenerator/TestPlatforms.cs

Is missing the OpenBSD constant and is therfore missing from AnyUnix as well. I'm not sure that it matters or not but just wanted to point it out as otherwise I wasn't sure where the TestPlatforms.OpenBSD constant was coming from.

@am11

am11 commented Jun 16, 2026

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It's coming from arcade SDK: https://github.com/dotnet/arcade/blob/5f63985fe82894604956e653d43c161ebbc1b576/src/Microsoft.DotNet.XUnitExtensions.Shared/TestPlatforms.cs#L26

src/tests: runtime tests (coreclr-vm,gc,jit,aot etc.).
src/libraries/<name>/tests: runtime libraries tests.

We can add OpenBSD in runtime tests later on, bootstrap docs cover both.

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sethjackson commented Jun 16, 2026

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Anything else that is needed before this can be merged?

@am11
am11 requested review from janvorli, rzikm and wfurtJune 16, 2026 16:27
@am11am11 added the os-openbsd OpenBSD OS, currently not officially supported label Jun 16, 2026
rzikm
rzikm approved these changes Jun 17, 2026
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LGTM, but I would prefer if also somebody else from @dotnet/ncl gave this a look

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rzikm requested a review from a teamJune 17, 2026 06:47
@am11am11 closed this Jun 19, 2026
@am11am11 reopened this Jun 19, 2026
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am11 commented Jun 19, 2026

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Remaining failures are unrelated; random timeouts. cc @dotnet/ncl

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rzikm enabled auto-merge (squash) June 23, 2026 13:18
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/ba-g Test failures are unrelated timeouts

@rzikm
rzikm merged commit 62040af into dotnet:mainJun 24, 2026
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@sethjackson
sethjackson deleted the port-sys-netinfo-openbsd branch June 24, 2026 15:25
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Add OpenBSD support in System.Net.NetworkInformation (#129279)
4fcdbb8
There is already support in `System.Native` for this. Just need to
enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD
specific `Interop.Libraries.cs` file which only contains the `MsQuic`
constant and since that doesn't appear to be used in
`System.Net.NetworkInformation` I haven't included it here and `msquic`
won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
---------
Co-authored-by: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Co-authored-by: Radek Zikmund <32671551+rzikm@users.noreply.github.com>
@github-actionsgithub-actionsBot locked and limited conversation to collaborators Jul 26, 2026
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Add OpenBSD support in System.Net.NetworkInformation - #129279
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Add OpenBSD support in System.Net.NetworkInformation#129279
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There is already support in System.Native for this. Just need to enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD specific Interop.Libraries.cs file which only contains the MsQuic constant and since that doesn't appear to be used in System.Net.NetworkInformation I haven't included it here and msquic won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
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Did you try running its tests on the device? If not, bootstrap docs in main branch have steps to build single library with zip archive, copy the zip archive and testhost from host to OpenBSD machine and invoke RunTests.sh command mentioned in the docs.

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I did not run tests but I’ll look at the docs and run them and post back.

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@sethjackson
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
What is involved in updating that to 7.9 besides updating the cross root FS stuff in dotnet/arcade?
On 7.8 the tests fail with the following:
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.

A longer trace:
System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing [FAIL]
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.
Stack Trace:
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0/System.Net.NetworkInformation.notsupported.cs(548,0): at System.Net.NetworkInformation.TcpConnectionInformation..ctor()
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/SimpleTcpConnectionInformation.Unix.cs(8,0): at System.Net.NetworkInformation.SimpleTcpConnectionInformation..ctor(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, TcpState state)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(265,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseTcpConnectionInformationFromLine(String line)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(71,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseActiveTcpConnectionsFromFiles(String tcp4ConnectionsFile, String tcp6ConnectionsFile)
/runtime/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/ConnectionsParsingTests.cs(48,0): at System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/runtime/src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs(1188,0): at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
/runtime/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(37,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/runtime/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

So not entirely sure what I did wrong here? I did the cross build and test packaging from my branch that has this patch.
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@sethjackson
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Oh oops. I think I figured it out. I need to add $(NetCoreAppCurrent)-openbsd to <TargetFrameworks> as well right?

Here https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L4?
Because otherwise we hit this?
https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L12
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
It is best to start with "lowest version which is not out of support" and that version is 7.8. What is the error on 7.9? Lets discuss it in main thread #124911.
PlatformNotSupportedException
When in doubt, piggyback on git grep -i freebsd -- ':/src/libraries/System.Net.NetworkInformation'
@sethjackson
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So I need to add openbsd to <TargetFrameworks> so that the <TargetPlatformIdentifier> gets set properly with:
<TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>

So that the Unix/BSD specific files get included in the build.
However when I do that I get the following:
Build FAILED.
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0-openbsd/System.Net.NetworkInformation.AssemblyInfo.cs(30,12): error CA1418: The platform 'openbsd' is not a known platform name (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1418) [/runtime/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj::TargetFramework=net11.0-openbsd]

And I'm not really sure how to fix this. I trapsed around in the linked docs and in the MSBuild repo but I didn't see anything FreeBSD specific that would make this work so not sure how to fix this for OpenBSD. Any ideas @am11?
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Add openbsd after 
runtime/eng/versioning.targets

Line 86
in
f363796
 <SupportedPlatformCondition="'$(TargetPlatformIdentifier)' == 'haiku'"Include="Haiku" /> 
We don't have OSPlatform.OpenBSD API yet, so any upcoming platform which is not yet released needs to be created manually there, so it can call OSPlatform.Create("OPENBSD") instead of OSPlatform.OpenBSD (FreeBSD has mileage in dotnet since 2016-17, so it doesn't have those issues; illumos/solaris/haiku are on this not-yet-release plan).
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Got it. That fixed it. I didn't see FreeBSD in that file so I didn't add it originally and OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
I'm assuming I should add the change to versioning.targets here in this PR correct? I don't see that file in http://github.com/dotnet/arcade
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Yes, this PR is the correct place for it; it's the first time we are building a platform-aware library where this validation kicks in.
Also, when you will run the tests, some of them will fail, you may need to sprinkle some TestPlatforms.OpenBSD attribute condition or if (!OSPlatform.Create("OPENBSD"))in C# code to skip them. You will need to make some understanding why those failed/skipped and whether that's expected. In case that's not expected (there is some bug), you can either fix it as part of this PR or open an issue then add this attribute [ActiveIssue("https://github.com/dotnet/runtime/issues/<your issue number>", TestPlatforms.OpenBSD)].
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OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
There was a typo in my comment I've edited; it was meant to be OSPlatform.OpenBSD and OSPlatform.Create("OPENBSD).
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I don't see that file in http://github.com/dotnet/arcade
Arcade shared directory is eng/common which gets autosync by bot: https://github.com/dotnet/runtime/blob/a3359b88167e537ef31281887bb259461391f8f6/eng/common/README.mdversioning.targets is outside of it.
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You can merge sethjackson#1 and that change will show up here. With those changes, all tests are appropriately skipped and others passing.
/home/am11/th/artifacts/bin/testhost/net11.0-openbsd-Debug-x64/dotnet exec --runtimeconfig System.Net.NetworkInformation.Functional.Tests.runtimeconfig.json --depsfile System.Net.NetworkInformation.Functional.Tests.deps.json xunit.console.dll System.Net.NetworkInformation.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
~/system.netinfo ~/system.netinfo
Discovering: System.Net.NetworkInformation.Functional.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Net.NetworkInformation.Functional.Tests (found 64 of 99 test cases)
Starting: System.Net.NetworkInformation.Functional.Tests (parallel test collections = on [5 threads], stop on fail = off)
Finished: System.Net.NetworkInformation.Functional.Tests
=== TEST EXECUTION SUMMARY ===
System.Net.NetworkInformation.Functional.Tests Total: 229, Errors: 0, Failed: 0, Skipped: 0, Time: 1.820s

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Merge pull request#1from am11/feature/port/openbsd-networkinfo
2f1b02d
Implement missing pieces for NetworkInformation
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Oh nice! I doubt I would have figured that out myself. I merged it. Thanks!
One thing I noticed is that this file:
https://github.com/dotnet/runtime/blob/main/src/tests/Common/XUnitWrapperGenerator/TestPlatforms.cs
Is missing the OpenBSD constant and is therfore missing from AnyUnix as well. I'm not sure that it matters or not but just wanted to point it out as otherwise I wasn't sure where the TestPlatforms.OpenBSD constant was coming from.
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It's coming from arcade SDK: https://github.com/dotnet/arcade/blob/5f63985fe82894604956e653d43c161ebbc1b576/src/Microsoft.DotNet.XUnitExtensions.Shared/TestPlatforms.cs#L26
src/tests: runtime tests (coreclr-vm,gc,jit,aot etc.).
src/libraries/<name>/tests: runtime libraries tests.
We can add OpenBSD in runtime tests later on, bootstrap docs cover both.

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Anything else that is needed before this can be merged?
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LGTM, but I would prefer if also somebody else from @dotnet/ncl gave this a look
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Remaining failures are unrelated; random timeouts. cc @dotnet/ncl
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/ba-g Test failures are unrelated timeouts
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Add OpenBSD support in System.Net.NetworkInformation (#129279)
4fcdbb8
There is already support in `System.Native` for this. Just need to
enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD
specific `Interop.Libraries.cs` file which only contains the `MsQuic`
constant and since that doesn't appear to be used in
`System.Net.NetworkInformation` I haven't included it here and `msquic`
won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
---------
Co-authored-by: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Co-authored-by: Radek Zikmund <32671551+rzikm@users.noreply.github.com>
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Add OpenBSD support in System.Net.NetworkInformation - #129279
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Add OpenBSD support in System.Net.NetworkInformation#129279
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There is already support in System.Native for this. Just need to enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD specific Interop.Libraries.cs file which only contains the MsQuic constant and since that doesn't appear to be used in System.Net.NetworkInformation I haven't included it here and msquic won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
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Did you try running its tests on the device? If not, bootstrap docs in main branch have steps to build single library with zip archive, copy the zip archive and testhost from host to OpenBSD machine and invoke RunTests.sh command mentioned in the docs.

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I did not run tests but I’ll look at the docs and run them and post back.

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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
What is involved in updating that to 7.9 besides updating the cross root FS stuff in dotnet/arcade?
On 7.8 the tests fail with the following:
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.

A longer trace:
System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing [FAIL]
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.
Stack Trace:
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0/System.Net.NetworkInformation.notsupported.cs(548,0): at System.Net.NetworkInformation.TcpConnectionInformation..ctor()
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/SimpleTcpConnectionInformation.Unix.cs(8,0): at System.Net.NetworkInformation.SimpleTcpConnectionInformation..ctor(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, TcpState state)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(265,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseTcpConnectionInformationFromLine(String line)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(71,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseActiveTcpConnectionsFromFiles(String tcp4ConnectionsFile, String tcp6ConnectionsFile)
/runtime/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/ConnectionsParsingTests.cs(48,0): at System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/runtime/src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs(1188,0): at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
/runtime/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(37,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/runtime/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

So not entirely sure what I did wrong here? I did the cross build and test packaging from my branch that has this patch.
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Oh oops. I think I figured it out. I need to add $(NetCoreAppCurrent)-openbsd to <TargetFrameworks> as well right?

Here https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L4?
Because otherwise we hit this?
https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L12
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
It is best to start with "lowest version which is not out of support" and that version is 7.8. What is the error on 7.9? Lets discuss it in main thread #124911.
PlatformNotSupportedException
When in doubt, piggyback on git grep -i freebsd -- ':/src/libraries/System.Net.NetworkInformation'
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So I need to add openbsd to <TargetFrameworks> so that the <TargetPlatformIdentifier> gets set properly with:
<TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>

So that the Unix/BSD specific files get included in the build.
However when I do that I get the following:
Build FAILED.
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0-openbsd/System.Net.NetworkInformation.AssemblyInfo.cs(30,12): error CA1418: The platform 'openbsd' is not a known platform name (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1418) [/runtime/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj::TargetFramework=net11.0-openbsd]

And I'm not really sure how to fix this. I trapsed around in the linked docs and in the MSBuild repo but I didn't see anything FreeBSD specific that would make this work so not sure how to fix this for OpenBSD. Any ideas @am11?
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Add openbsd after 
runtime/eng/versioning.targets

Line 86
in
f363796
 <SupportedPlatformCondition="'$(TargetPlatformIdentifier)' == 'haiku'"Include="Haiku" /> 
We don't have OSPlatform.OpenBSD API yet, so any upcoming platform which is not yet released needs to be created manually there, so it can call OSPlatform.Create("OPENBSD") instead of OSPlatform.OpenBSD (FreeBSD has mileage in dotnet since 2016-17, so it doesn't have those issues; illumos/solaris/haiku are on this not-yet-release plan).
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Got it. That fixed it. I didn't see FreeBSD in that file so I didn't add it originally and OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
I'm assuming I should add the change to versioning.targets here in this PR correct? I don't see that file in http://github.com/dotnet/arcade
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Yes, this PR is the correct place for it; it's the first time we are building a platform-aware library where this validation kicks in.
Also, when you will run the tests, some of them will fail, you may need to sprinkle some TestPlatforms.OpenBSD attribute condition or if (!OSPlatform.Create("OPENBSD"))in C# code to skip them. You will need to make some understanding why those failed/skipped and whether that's expected. In case that's not expected (there is some bug), you can either fix it as part of this PR or open an issue then add this attribute [ActiveIssue("https://github.com/dotnet/runtime/issues/<your issue number>", TestPlatforms.OpenBSD)].
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OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
There was a typo in my comment I've edited; it was meant to be OSPlatform.OpenBSD and OSPlatform.Create("OPENBSD).
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I don't see that file in http://github.com/dotnet/arcade
Arcade shared directory is eng/common which gets autosync by bot: https://github.com/dotnet/runtime/blob/a3359b88167e537ef31281887bb259461391f8f6/eng/common/README.mdversioning.targets is outside of it.
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You can merge sethjackson#1 and that change will show up here. With those changes, all tests are appropriately skipped and others passing.
/home/am11/th/artifacts/bin/testhost/net11.0-openbsd-Debug-x64/dotnet exec --runtimeconfig System.Net.NetworkInformation.Functional.Tests.runtimeconfig.json --depsfile System.Net.NetworkInformation.Functional.Tests.deps.json xunit.console.dll System.Net.NetworkInformation.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
~/system.netinfo ~/system.netinfo
Discovering: System.Net.NetworkInformation.Functional.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Net.NetworkInformation.Functional.Tests (found 64 of 99 test cases)
Starting: System.Net.NetworkInformation.Functional.Tests (parallel test collections = on [5 threads], stop on fail = off)
Finished: System.Net.NetworkInformation.Functional.Tests
=== TEST EXECUTION SUMMARY ===
System.Net.NetworkInformation.Functional.Tests Total: 229, Errors: 0, Failed: 0, Skipped: 0, Time: 1.820s

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Merge pull request#1from am11/feature/port/openbsd-networkinfo
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Implement missing pieces for NetworkInformation
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Oh nice! I doubt I would have figured that out myself. I merged it. Thanks!
One thing I noticed is that this file:
https://github.com/dotnet/runtime/blob/main/src/tests/Common/XUnitWrapperGenerator/TestPlatforms.cs
Is missing the OpenBSD constant and is therfore missing from AnyUnix as well. I'm not sure that it matters or not but just wanted to point it out as otherwise I wasn't sure where the TestPlatforms.OpenBSD constant was coming from.
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It's coming from arcade SDK: https://github.com/dotnet/arcade/blob/5f63985fe82894604956e653d43c161ebbc1b576/src/Microsoft.DotNet.XUnitExtensions.Shared/TestPlatforms.cs#L26
src/tests: runtime tests (coreclr-vm,gc,jit,aot etc.).
src/libraries/<name>/tests: runtime libraries tests.
We can add OpenBSD in runtime tests later on, bootstrap docs cover both.

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Anything else that is needed before this can be merged?
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LGTM, but I would prefer if also somebody else from @dotnet/ncl gave this a look
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Remaining failures are unrelated; random timeouts. cc @dotnet/ncl
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/ba-g Test failures are unrelated timeouts
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@sethjackson@am11
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Add OpenBSD support in System.Net.NetworkInformation (#129279)
4fcdbb8
There is already support in `System.Native` for this. Just need to
enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD
specific `Interop.Libraries.cs` file which only contains the `MsQuic`
constant and since that doesn't appear to be used in
`System.Net.NetworkInformation` I haven't included it here and `msquic`
won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
---------
Co-authored-by: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Co-authored-by: Radek Zikmund <32671551+rzikm@users.noreply.github.com>
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Add OpenBSD support in System.Net.NetworkInformation - #129279
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Add OpenBSD support in System.Net.NetworkInformation#129279
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There is already support in System.Native for this. Just need to enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD specific Interop.Libraries.cs file which only contains the MsQuic constant and since that doesn't appear to be used in System.Net.NetworkInformation I haven't included it here and msquic won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
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Did you try running its tests on the device? If not, bootstrap docs in main branch have steps to build single library with zip archive, copy the zip archive and testhost from host to OpenBSD machine and invoke RunTests.sh command mentioned in the docs.

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I did not run tests but I’ll look at the docs and run them and post back.

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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
What is involved in updating that to 7.9 besides updating the cross root FS stuff in dotnet/arcade?
On 7.8 the tests fail with the following:
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.

A longer trace:
System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing [FAIL]
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.
Stack Trace:
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0/System.Net.NetworkInformation.notsupported.cs(548,0): at System.Net.NetworkInformation.TcpConnectionInformation..ctor()
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/SimpleTcpConnectionInformation.Unix.cs(8,0): at System.Net.NetworkInformation.SimpleTcpConnectionInformation..ctor(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, TcpState state)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(265,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseTcpConnectionInformationFromLine(String line)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(71,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseActiveTcpConnectionsFromFiles(String tcp4ConnectionsFile, String tcp6ConnectionsFile)
/runtime/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/ConnectionsParsingTests.cs(48,0): at System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/runtime/src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs(1188,0): at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
/runtime/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(37,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/runtime/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

So not entirely sure what I did wrong here? I did the cross build and test packaging from my branch that has this patch.
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Oh oops. I think I figured it out. I need to add $(NetCoreAppCurrent)-openbsd to <TargetFrameworks> as well right?

Here https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L4?
Because otherwise we hit this?
https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L12
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
It is best to start with "lowest version which is not out of support" and that version is 7.8. What is the error on 7.9? Lets discuss it in main thread #124911.
PlatformNotSupportedException
When in doubt, piggyback on git grep -i freebsd -- ':/src/libraries/System.Net.NetworkInformation'
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So I need to add openbsd to <TargetFrameworks> so that the <TargetPlatformIdentifier> gets set properly with:
<TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>

So that the Unix/BSD specific files get included in the build.
However when I do that I get the following:
Build FAILED.
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0-openbsd/System.Net.NetworkInformation.AssemblyInfo.cs(30,12): error CA1418: The platform 'openbsd' is not a known platform name (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1418) [/runtime/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj::TargetFramework=net11.0-openbsd]

And I'm not really sure how to fix this. I trapsed around in the linked docs and in the MSBuild repo but I didn't see anything FreeBSD specific that would make this work so not sure how to fix this for OpenBSD. Any ideas @am11?
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Add openbsd after 
runtime/eng/versioning.targets

Line 86
in
f363796
 <SupportedPlatformCondition="'$(TargetPlatformIdentifier)' == 'haiku'"Include="Haiku" /> 
We don't have OSPlatform.OpenBSD API yet, so any upcoming platform which is not yet released needs to be created manually there, so it can call OSPlatform.Create("OPENBSD") instead of OSPlatform.OpenBSD (FreeBSD has mileage in dotnet since 2016-17, so it doesn't have those issues; illumos/solaris/haiku are on this not-yet-release plan).
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Got it. That fixed it. I didn't see FreeBSD in that file so I didn't add it originally and OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
I'm assuming I should add the change to versioning.targets here in this PR correct? I don't see that file in http://github.com/dotnet/arcade
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Yes, this PR is the correct place for it; it's the first time we are building a platform-aware library where this validation kicks in.
Also, when you will run the tests, some of them will fail, you may need to sprinkle some TestPlatforms.OpenBSD attribute condition or if (!OSPlatform.Create("OPENBSD"))in C# code to skip them. You will need to make some understanding why those failed/skipped and whether that's expected. In case that's not expected (there is some bug), you can either fix it as part of this PR or open an issue then add this attribute [ActiveIssue("https://github.com/dotnet/runtime/issues/<your issue number>", TestPlatforms.OpenBSD)].
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OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
There was a typo in my comment I've edited; it was meant to be OSPlatform.OpenBSD and OSPlatform.Create("OPENBSD).
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I don't see that file in http://github.com/dotnet/arcade
Arcade shared directory is eng/common which gets autosync by bot: https://github.com/dotnet/runtime/blob/a3359b88167e537ef31281887bb259461391f8f6/eng/common/README.mdversioning.targets is outside of it.
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You can merge sethjackson#1 and that change will show up here. With those changes, all tests are appropriately skipped and others passing.
/home/am11/th/artifacts/bin/testhost/net11.0-openbsd-Debug-x64/dotnet exec --runtimeconfig System.Net.NetworkInformation.Functional.Tests.runtimeconfig.json --depsfile System.Net.NetworkInformation.Functional.Tests.deps.json xunit.console.dll System.Net.NetworkInformation.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
~/system.netinfo ~/system.netinfo
Discovering: System.Net.NetworkInformation.Functional.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Net.NetworkInformation.Functional.Tests (found 64 of 99 test cases)
Starting: System.Net.NetworkInformation.Functional.Tests (parallel test collections = on [5 threads], stop on fail = off)
Finished: System.Net.NetworkInformation.Functional.Tests
=== TEST EXECUTION SUMMARY ===
System.Net.NetworkInformation.Functional.Tests Total: 229, Errors: 0, Failed: 0, Skipped: 0, Time: 1.820s

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Merge pull request#1from am11/feature/port/openbsd-networkinfo
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Implement missing pieces for NetworkInformation
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Oh nice! I doubt I would have figured that out myself. I merged it. Thanks!
One thing I noticed is that this file:
https://github.com/dotnet/runtime/blob/main/src/tests/Common/XUnitWrapperGenerator/TestPlatforms.cs
Is missing the OpenBSD constant and is therfore missing from AnyUnix as well. I'm not sure that it matters or not but just wanted to point it out as otherwise I wasn't sure where the TestPlatforms.OpenBSD constant was coming from.
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It's coming from arcade SDK: https://github.com/dotnet/arcade/blob/5f63985fe82894604956e653d43c161ebbc1b576/src/Microsoft.DotNet.XUnitExtensions.Shared/TestPlatforms.cs#L26
src/tests: runtime tests (coreclr-vm,gc,jit,aot etc.).
src/libraries/<name>/tests: runtime libraries tests.
We can add OpenBSD in runtime tests later on, bootstrap docs cover both.

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Anything else that is needed before this can be merged?
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LGTM, but I would prefer if also somebody else from @dotnet/ncl gave this a look
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Remaining failures are unrelated; random timeouts. cc @dotnet/ncl
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/ba-g Test failures are unrelated timeouts
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Add OpenBSD support in System.Net.NetworkInformation (#129279)
4fcdbb8
There is already support in `System.Native` for this. Just need to
enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD
specific `Interop.Libraries.cs` file which only contains the `MsQuic`
constant and since that doesn't appear to be used in
`System.Net.NetworkInformation` I haven't included it here and `msquic`
won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
---------
Co-authored-by: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Co-authored-by: Radek Zikmund <32671551+rzikm@users.noreply.github.com>
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Add OpenBSD support in System.Net.NetworkInformation - #129279
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Add OpenBSD support in System.Net.NetworkInformation#129279
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There is already support in System.Native for this. Just need to enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD specific Interop.Libraries.cs file which only contains the MsQuic constant and since that doesn't appear to be used in System.Net.NetworkInformation I haven't included it here and msquic won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
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Tagging subscribers to this area: @karelz, @dotnet/ncl

See info in area-owners.md if you want to be subscribed.
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Did you try running its tests on the device? If not, bootstrap docs in main branch have steps to build single library with zip archive, copy the zip archive and testhost from host to OpenBSD machine and invoke RunTests.sh command mentioned in the docs.

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I did not run tests but I’ll look at the docs and run them and post back.

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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
What is involved in updating that to 7.9 besides updating the cross root FS stuff in dotnet/arcade?
On 7.8 the tests fail with the following:
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.

A longer trace:
System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing [FAIL]
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.
Stack Trace:
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0/System.Net.NetworkInformation.notsupported.cs(548,0): at System.Net.NetworkInformation.TcpConnectionInformation..ctor()
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/SimpleTcpConnectionInformation.Unix.cs(8,0): at System.Net.NetworkInformation.SimpleTcpConnectionInformation..ctor(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, TcpState state)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(265,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseTcpConnectionInformationFromLine(String line)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(71,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseActiveTcpConnectionsFromFiles(String tcp4ConnectionsFile, String tcp6ConnectionsFile)
/runtime/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/ConnectionsParsingTests.cs(48,0): at System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/runtime/src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs(1188,0): at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
/runtime/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(37,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/runtime/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

So not entirely sure what I did wrong here? I did the cross build and test packaging from my branch that has this patch.
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Oh oops. I think I figured it out. I need to add $(NetCoreAppCurrent)-openbsd to <TargetFrameworks> as well right?

Here https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L4?
Because otherwise we hit this?
https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L12
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
It is best to start with "lowest version which is not out of support" and that version is 7.8. What is the error on 7.9? Lets discuss it in main thread #124911.
PlatformNotSupportedException
When in doubt, piggyback on git grep -i freebsd -- ':/src/libraries/System.Net.NetworkInformation'
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So I need to add openbsd to <TargetFrameworks> so that the <TargetPlatformIdentifier> gets set properly with:
<TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>

So that the Unix/BSD specific files get included in the build.
However when I do that I get the following:
Build FAILED.
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0-openbsd/System.Net.NetworkInformation.AssemblyInfo.cs(30,12): error CA1418: The platform 'openbsd' is not a known platform name (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1418) [/runtime/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj::TargetFramework=net11.0-openbsd]

And I'm not really sure how to fix this. I trapsed around in the linked docs and in the MSBuild repo but I didn't see anything FreeBSD specific that would make this work so not sure how to fix this for OpenBSD. Any ideas @am11?
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Add openbsd after 
runtime/eng/versioning.targets

Line 86
in
f363796
 <SupportedPlatformCondition="'$(TargetPlatformIdentifier)' == 'haiku'"Include="Haiku" /> 
We don't have OSPlatform.OpenBSD API yet, so any upcoming platform which is not yet released needs to be created manually there, so it can call OSPlatform.Create("OPENBSD") instead of OSPlatform.OpenBSD (FreeBSD has mileage in dotnet since 2016-17, so it doesn't have those issues; illumos/solaris/haiku are on this not-yet-release plan).
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Got it. That fixed it. I didn't see FreeBSD in that file so I didn't add it originally and OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
I'm assuming I should add the change to versioning.targets here in this PR correct? I don't see that file in http://github.com/dotnet/arcade
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Yes, this PR is the correct place for it; it's the first time we are building a platform-aware library where this validation kicks in.
Also, when you will run the tests, some of them will fail, you may need to sprinkle some TestPlatforms.OpenBSD attribute condition or if (!OSPlatform.Create("OPENBSD"))in C# code to skip them. You will need to make some understanding why those failed/skipped and whether that's expected. In case that's not expected (there is some bug), you can either fix it as part of this PR or open an issue then add this attribute [ActiveIssue("https://github.com/dotnet/runtime/issues/<your issue number>", TestPlatforms.OpenBSD)].
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OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
There was a typo in my comment I've edited; it was meant to be OSPlatform.OpenBSD and OSPlatform.Create("OPENBSD).
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I don't see that file in http://github.com/dotnet/arcade
Arcade shared directory is eng/common which gets autosync by bot: https://github.com/dotnet/runtime/blob/a3359b88167e537ef31281887bb259461391f8f6/eng/common/README.mdversioning.targets is outside of it.
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You can merge sethjackson#1 and that change will show up here. With those changes, all tests are appropriately skipped and others passing.
/home/am11/th/artifacts/bin/testhost/net11.0-openbsd-Debug-x64/dotnet exec --runtimeconfig System.Net.NetworkInformation.Functional.Tests.runtimeconfig.json --depsfile System.Net.NetworkInformation.Functional.Tests.deps.json xunit.console.dll System.Net.NetworkInformation.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
~/system.netinfo ~/system.netinfo
Discovering: System.Net.NetworkInformation.Functional.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Net.NetworkInformation.Functional.Tests (found 64 of 99 test cases)
Starting: System.Net.NetworkInformation.Functional.Tests (parallel test collections = on [5 threads], stop on fail = off)
Finished: System.Net.NetworkInformation.Functional.Tests
=== TEST EXECUTION SUMMARY ===
System.Net.NetworkInformation.Functional.Tests Total: 229, Errors: 0, Failed: 0, Skipped: 0, Time: 1.820s

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Merge pull request#1from am11/feature/port/openbsd-networkinfo
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Implement missing pieces for NetworkInformation
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Oh nice! I doubt I would have figured that out myself. I merged it. Thanks!
One thing I noticed is that this file:
https://github.com/dotnet/runtime/blob/main/src/tests/Common/XUnitWrapperGenerator/TestPlatforms.cs
Is missing the OpenBSD constant and is therfore missing from AnyUnix as well. I'm not sure that it matters or not but just wanted to point it out as otherwise I wasn't sure where the TestPlatforms.OpenBSD constant was coming from.
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It's coming from arcade SDK: https://github.com/dotnet/arcade/blob/5f63985fe82894604956e653d43c161ebbc1b576/src/Microsoft.DotNet.XUnitExtensions.Shared/TestPlatforms.cs#L26
src/tests: runtime tests (coreclr-vm,gc,jit,aot etc.).
src/libraries/<name>/tests: runtime libraries tests.
We can add OpenBSD in runtime tests later on, bootstrap docs cover both.

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Anything else that is needed before this can be merged?
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LGTM, but I would prefer if also somebody else from @dotnet/ncl gave this a look
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Remaining failures are unrelated; random timeouts. cc @dotnet/ncl
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/ba-g Test failures are unrelated timeouts
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Add OpenBSD support in System.Net.NetworkInformation (#129279)
4fcdbb8
There is already support in `System.Native` for this. Just need to
enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD
specific `Interop.Libraries.cs` file which only contains the `MsQuic`
constant and since that doesn't appear to be used in
`System.Net.NetworkInformation` I haven't included it here and `msquic`
won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
---------
Co-authored-by: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Co-authored-by: Radek Zikmund <32671551+rzikm@users.noreply.github.com>
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Add OpenBSD support in System.Net.NetworkInformation - #129279
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Add OpenBSD support in System.Net.NetworkInformation#129279
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There is already support in System.Native for this. Just need to enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD specific Interop.Libraries.cs file which only contains the MsQuic constant and since that doesn't appear to be used in System.Net.NetworkInformation I haven't included it here and msquic won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
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Did you try running its tests on the device? If not, bootstrap docs in main branch have steps to build single library with zip archive, copy the zip archive and testhost from host to OpenBSD machine and invoke RunTests.sh command mentioned in the docs.

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I did not run tests but I’ll look at the docs and run them and post back.

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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
What is involved in updating that to 7.9 besides updating the cross root FS stuff in dotnet/arcade?
On 7.8 the tests fail with the following:
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.

A longer trace:
System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing [FAIL]
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.
Stack Trace:
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0/System.Net.NetworkInformation.notsupported.cs(548,0): at System.Net.NetworkInformation.TcpConnectionInformation..ctor()
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/SimpleTcpConnectionInformation.Unix.cs(8,0): at System.Net.NetworkInformation.SimpleTcpConnectionInformation..ctor(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, TcpState state)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(265,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseTcpConnectionInformationFromLine(String line)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(71,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseActiveTcpConnectionsFromFiles(String tcp4ConnectionsFile, String tcp6ConnectionsFile)
/runtime/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/ConnectionsParsingTests.cs(48,0): at System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/runtime/src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs(1188,0): at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
/runtime/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(37,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/runtime/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

So not entirely sure what I did wrong here? I did the cross build and test packaging from my branch that has this patch.
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Oh oops. I think I figured it out. I need to add $(NetCoreAppCurrent)-openbsd to <TargetFrameworks> as well right?

Here https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L4?
Because otherwise we hit this?
https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L12
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
It is best to start with "lowest version which is not out of support" and that version is 7.8. What is the error on 7.9? Lets discuss it in main thread #124911.
PlatformNotSupportedException
When in doubt, piggyback on git grep -i freebsd -- ':/src/libraries/System.Net.NetworkInformation'
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So I need to add openbsd to <TargetFrameworks> so that the <TargetPlatformIdentifier> gets set properly with:
<TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>

So that the Unix/BSD specific files get included in the build.
However when I do that I get the following:
Build FAILED.
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0-openbsd/System.Net.NetworkInformation.AssemblyInfo.cs(30,12): error CA1418: The platform 'openbsd' is not a known platform name (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1418) [/runtime/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj::TargetFramework=net11.0-openbsd]

And I'm not really sure how to fix this. I trapsed around in the linked docs and in the MSBuild repo but I didn't see anything FreeBSD specific that would make this work so not sure how to fix this for OpenBSD. Any ideas @am11?
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Add openbsd after 
runtime/eng/versioning.targets

Line 86
in
f363796
 <SupportedPlatformCondition="'$(TargetPlatformIdentifier)' == 'haiku'"Include="Haiku" /> 
We don't have OSPlatform.OpenBSD API yet, so any upcoming platform which is not yet released needs to be created manually there, so it can call OSPlatform.Create("OPENBSD") instead of OSPlatform.OpenBSD (FreeBSD has mileage in dotnet since 2016-17, so it doesn't have those issues; illumos/solaris/haiku are on this not-yet-release plan).
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Got it. That fixed it. I didn't see FreeBSD in that file so I didn't add it originally and OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
I'm assuming I should add the change to versioning.targets here in this PR correct? I don't see that file in http://github.com/dotnet/arcade
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Yes, this PR is the correct place for it; it's the first time we are building a platform-aware library where this validation kicks in.
Also, when you will run the tests, some of them will fail, you may need to sprinkle some TestPlatforms.OpenBSD attribute condition or if (!OSPlatform.Create("OPENBSD"))in C# code to skip them. You will need to make some understanding why those failed/skipped and whether that's expected. In case that's not expected (there is some bug), you can either fix it as part of this PR or open an issue then add this attribute [ActiveIssue("https://github.com/dotnet/runtime/issues/<your issue number>", TestPlatforms.OpenBSD)].
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OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
There was a typo in my comment I've edited; it was meant to be OSPlatform.OpenBSD and OSPlatform.Create("OPENBSD).
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I don't see that file in http://github.com/dotnet/arcade
Arcade shared directory is eng/common which gets autosync by bot: https://github.com/dotnet/runtime/blob/a3359b88167e537ef31281887bb259461391f8f6/eng/common/README.mdversioning.targets is outside of it.
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You can merge sethjackson#1 and that change will show up here. With those changes, all tests are appropriately skipped and others passing.
/home/am11/th/artifacts/bin/testhost/net11.0-openbsd-Debug-x64/dotnet exec --runtimeconfig System.Net.NetworkInformation.Functional.Tests.runtimeconfig.json --depsfile System.Net.NetworkInformation.Functional.Tests.deps.json xunit.console.dll System.Net.NetworkInformation.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
~/system.netinfo ~/system.netinfo
Discovering: System.Net.NetworkInformation.Functional.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Net.NetworkInformation.Functional.Tests (found 64 of 99 test cases)
Starting: System.Net.NetworkInformation.Functional.Tests (parallel test collections = on [5 threads], stop on fail = off)
Finished: System.Net.NetworkInformation.Functional.Tests
=== TEST EXECUTION SUMMARY ===
System.Net.NetworkInformation.Functional.Tests Total: 229, Errors: 0, Failed: 0, Skipped: 0, Time: 1.820s

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Merge pull request#1from am11/feature/port/openbsd-networkinfo
2f1b02d
Implement missing pieces for NetworkInformation
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Oh nice! I doubt I would have figured that out myself. I merged it. Thanks!
One thing I noticed is that this file:
https://github.com/dotnet/runtime/blob/main/src/tests/Common/XUnitWrapperGenerator/TestPlatforms.cs
Is missing the OpenBSD constant and is therfore missing from AnyUnix as well. I'm not sure that it matters or not but just wanted to point it out as otherwise I wasn't sure where the TestPlatforms.OpenBSD constant was coming from.
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It's coming from arcade SDK: https://github.com/dotnet/arcade/blob/5f63985fe82894604956e653d43c161ebbc1b576/src/Microsoft.DotNet.XUnitExtensions.Shared/TestPlatforms.cs#L26
src/tests: runtime tests (coreclr-vm,gc,jit,aot etc.).
src/libraries/<name>/tests: runtime libraries tests.
We can add OpenBSD in runtime tests later on, bootstrap docs cover both.

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Anything else that is needed before this can be merged?
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LGTM, but I would prefer if also somebody else from @dotnet/ncl gave this a look
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Remaining failures are unrelated; random timeouts. cc @dotnet/ncl
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/ba-g Test failures are unrelated timeouts
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@sethjackson@am11
@rzikm@eiriktsarpalis
Add OpenBSD support in System.Net.NetworkInformation (#129279)
4fcdbb8
There is already support in `System.Native` for this. Just need to
enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD
specific `Interop.Libraries.cs` file which only contains the `MsQuic`
constant and since that doesn't appear to be used in
`System.Net.NetworkInformation` I haven't included it here and `msquic`
won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
---------
Co-authored-by: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Co-authored-by: Radek Zikmund <32671551+rzikm@users.noreply.github.com>
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Add OpenBSD support in System.Net.NetworkInformation - #129279
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Add OpenBSD support in System.Net.NetworkInformation#129279
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There is already support in System.Native for this. Just need to enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD specific Interop.Libraries.cs file which only contains the MsQuic constant and since that doesn't appear to be used in System.Net.NetworkInformation I haven't included it here and msquic won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
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Did you try running its tests on the device? If not, bootstrap docs in main branch have steps to build single library with zip archive, copy the zip archive and testhost from host to OpenBSD machine and invoke RunTests.sh command mentioned in the docs.

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I did not run tests but I’ll look at the docs and run them and post back.

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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
What is involved in updating that to 7.9 besides updating the cross root FS stuff in dotnet/arcade?
On 7.8 the tests fail with the following:
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.

A longer trace:
System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing [FAIL]
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.
Stack Trace:
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0/System.Net.NetworkInformation.notsupported.cs(548,0): at System.Net.NetworkInformation.TcpConnectionInformation..ctor()
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/SimpleTcpConnectionInformation.Unix.cs(8,0): at System.Net.NetworkInformation.SimpleTcpConnectionInformation..ctor(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, TcpState state)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(265,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseTcpConnectionInformationFromLine(String line)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(71,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseActiveTcpConnectionsFromFiles(String tcp4ConnectionsFile, String tcp6ConnectionsFile)
/runtime/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/ConnectionsParsingTests.cs(48,0): at System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/runtime/src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs(1188,0): at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
/runtime/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(37,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/runtime/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

So not entirely sure what I did wrong here? I did the cross build and test packaging from my branch that has this patch.
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Oh oops. I think I figured it out. I need to add $(NetCoreAppCurrent)-openbsd to <TargetFrameworks> as well right?

Here https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L4?
Because otherwise we hit this?
https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L12
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
It is best to start with "lowest version which is not out of support" and that version is 7.8. What is the error on 7.9? Lets discuss it in main thread #124911.
PlatformNotSupportedException
When in doubt, piggyback on git grep -i freebsd -- ':/src/libraries/System.Net.NetworkInformation'
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So I need to add openbsd to <TargetFrameworks> so that the <TargetPlatformIdentifier> gets set properly with:
<TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>

So that the Unix/BSD specific files get included in the build.
However when I do that I get the following:
Build FAILED.
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0-openbsd/System.Net.NetworkInformation.AssemblyInfo.cs(30,12): error CA1418: The platform 'openbsd' is not a known platform name (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1418) [/runtime/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj::TargetFramework=net11.0-openbsd]

And I'm not really sure how to fix this. I trapsed around in the linked docs and in the MSBuild repo but I didn't see anything FreeBSD specific that would make this work so not sure how to fix this for OpenBSD. Any ideas @am11?
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Add openbsd after 
runtime/eng/versioning.targets

Line 86
in
f363796
 <SupportedPlatformCondition="'$(TargetPlatformIdentifier)' == 'haiku'"Include="Haiku" /> 
We don't have OSPlatform.OpenBSD API yet, so any upcoming platform which is not yet released needs to be created manually there, so it can call OSPlatform.Create("OPENBSD") instead of OSPlatform.OpenBSD (FreeBSD has mileage in dotnet since 2016-17, so it doesn't have those issues; illumos/solaris/haiku are on this not-yet-release plan).
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Got it. That fixed it. I didn't see FreeBSD in that file so I didn't add it originally and OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
I'm assuming I should add the change to versioning.targets here in this PR correct? I don't see that file in http://github.com/dotnet/arcade
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Yes, this PR is the correct place for it; it's the first time we are building a platform-aware library where this validation kicks in.
Also, when you will run the tests, some of them will fail, you may need to sprinkle some TestPlatforms.OpenBSD attribute condition or if (!OSPlatform.Create("OPENBSD"))in C# code to skip them. You will need to make some understanding why those failed/skipped and whether that's expected. In case that's not expected (there is some bug), you can either fix it as part of this PR or open an issue then add this attribute [ActiveIssue("https://github.com/dotnet/runtime/issues/<your issue number>", TestPlatforms.OpenBSD)].
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OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
There was a typo in my comment I've edited; it was meant to be OSPlatform.OpenBSD and OSPlatform.Create("OPENBSD).
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I don't see that file in http://github.com/dotnet/arcade
Arcade shared directory is eng/common which gets autosync by bot: https://github.com/dotnet/runtime/blob/a3359b88167e537ef31281887bb259461391f8f6/eng/common/README.mdversioning.targets is outside of it.
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You can merge sethjackson#1 and that change will show up here. With those changes, all tests are appropriately skipped and others passing.
/home/am11/th/artifacts/bin/testhost/net11.0-openbsd-Debug-x64/dotnet exec --runtimeconfig System.Net.NetworkInformation.Functional.Tests.runtimeconfig.json --depsfile System.Net.NetworkInformation.Functional.Tests.deps.json xunit.console.dll System.Net.NetworkInformation.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
~/system.netinfo ~/system.netinfo
Discovering: System.Net.NetworkInformation.Functional.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Net.NetworkInformation.Functional.Tests (found 64 of 99 test cases)
Starting: System.Net.NetworkInformation.Functional.Tests (parallel test collections = on [5 threads], stop on fail = off)
Finished: System.Net.NetworkInformation.Functional.Tests
=== TEST EXECUTION SUMMARY ===
System.Net.NetworkInformation.Functional.Tests Total: 229, Errors: 0, Failed: 0, Skipped: 0, Time: 1.820s

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Merge pull request#1from am11/feature/port/openbsd-networkinfo
2f1b02d
Implement missing pieces for NetworkInformation
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Oh nice! I doubt I would have figured that out myself. I merged it. Thanks!
One thing I noticed is that this file:
https://github.com/dotnet/runtime/blob/main/src/tests/Common/XUnitWrapperGenerator/TestPlatforms.cs
Is missing the OpenBSD constant and is therfore missing from AnyUnix as well. I'm not sure that it matters or not but just wanted to point it out as otherwise I wasn't sure where the TestPlatforms.OpenBSD constant was coming from.
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It's coming from arcade SDK: https://github.com/dotnet/arcade/blob/5f63985fe82894604956e653d43c161ebbc1b576/src/Microsoft.DotNet.XUnitExtensions.Shared/TestPlatforms.cs#L26
src/tests: runtime tests (coreclr-vm,gc,jit,aot etc.).
src/libraries/<name>/tests: runtime libraries tests.
We can add OpenBSD in runtime tests later on, bootstrap docs cover both.

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Anything else that is needed before this can be merged?
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LGTM, but I would prefer if also somebody else from @dotnet/ncl gave this a look
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Remaining failures are unrelated; random timeouts. cc @dotnet/ncl
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/ba-g Test failures are unrelated timeouts
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@sethjackson@am11
@rzikm@eiriktsarpalis
Add OpenBSD support in System.Net.NetworkInformation (#129279)
4fcdbb8
There is already support in `System.Native` for this. Just need to
enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD
specific `Interop.Libraries.cs` file which only contains the `MsQuic`
constant and since that doesn't appear to be used in
`System.Net.NetworkInformation` I haven't included it here and `msquic`
won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
---------
Co-authored-by: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Co-authored-by: Radek Zikmund <32671551+rzikm@users.noreply.github.com>
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Add OpenBSD support in System.Net.NetworkInformation - #129279
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sethjackson:port-sys-netinfo-openbsd
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Add OpenBSD support in System.Net.NetworkInformation#129279
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There is already support in System.Native for this. Just need to enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD specific Interop.Libraries.cs file which only contains the MsQuic constant and since that doesn't appear to be used in System.Net.NetworkInformation I haven't included it here and msquic won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
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Tagging subscribers to this area: @karelz, @dotnet/ncl

See info in area-owners.md if you want to be subscribed.
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Did you try running its tests on the device? If not, bootstrap docs in main branch have steps to build single library with zip archive, copy the zip archive and testhost from host to OpenBSD machine and invoke RunTests.sh command mentioned in the docs.

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I did not run tests but I’ll look at the docs and run them and post back.

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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
What is involved in updating that to 7.9 besides updating the cross root FS stuff in dotnet/arcade?
On 7.8 the tests fail with the following:
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.

A longer trace:
System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing [FAIL]
System.PlatformNotSupportedException : System.Net.NetworkInformation is not supported on this platform.
Stack Trace:
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0/System.Net.NetworkInformation.notsupported.cs(548,0): at System.Net.NetworkInformation.TcpConnectionInformation..ctor()
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/SimpleTcpConnectionInformation.Unix.cs(8,0): at System.Net.NetworkInformation.SimpleTcpConnectionInformation..ctor(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, TcpState state)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(265,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseTcpConnectionInformationFromLine(String line)
/runtime/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/StringParsingHelpers.Connections.cs(71,0): at System.Net.NetworkInformation.StringParsingHelpers.ParseActiveTcpConnectionsFromFiles(String tcp4ConnectionsFile, String tcp6ConnectionsFile)
/runtime/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/ConnectionsParsingTests.cs(48,0): at System.Net.NetworkInformation.Tests.ConnectionsParsingTests.ActiveTcpConnectionsParsing()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/runtime/src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs(1188,0): at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
/runtime/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(37,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/runtime/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

So not entirely sure what I did wrong here? I did the cross build and test packaging from my branch that has this patch.
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Oh oops. I think I figured it out. I need to add $(NetCoreAppCurrent)-openbsd to <TargetFrameworks> as well right?

Here https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L4?
Because otherwise we hit this?
https://github.com/dotnet/runtime/blob/main/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L12
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I was struggling to get this to run on my system then I realized that I was on 7.9 which was recently released but cross build infra is on 7.8.
It is best to start with "lowest version which is not out of support" and that version is 7.8. What is the error on 7.9? Lets discuss it in main thread #124911.
PlatformNotSupportedException
When in doubt, piggyback on git grep -i freebsd -- ':/src/libraries/System.Net.NetworkInformation'
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So I need to add openbsd to <TargetFrameworks> so that the <TargetPlatformIdentifier> gets set properly with:
<TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>

So that the Unix/BSD specific files get included in the build.
However when I do that I get the following:
Build FAILED.
/runtime/artifacts/obj/System.Net.NetworkInformation/Debug/net11.0-openbsd/System.Net.NetworkInformation.AssemblyInfo.cs(30,12): error CA1418: The platform 'openbsd' is not a known platform name (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1418) [/runtime/src/libraries/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj::TargetFramework=net11.0-openbsd]

And I'm not really sure how to fix this. I trapsed around in the linked docs and in the MSBuild repo but I didn't see anything FreeBSD specific that would make this work so not sure how to fix this for OpenBSD. Any ideas @am11?
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Add openbsd after 
runtime/eng/versioning.targets

Line 86
in
f363796
 <SupportedPlatformCondition="'$(TargetPlatformIdentifier)' == 'haiku'"Include="Haiku" /> 
We don't have OSPlatform.OpenBSD API yet, so any upcoming platform which is not yet released needs to be created manually there, so it can call OSPlatform.Create("OPENBSD") instead of OSPlatform.OpenBSD (FreeBSD has mileage in dotnet since 2016-17, so it doesn't have those issues; illumos/solaris/haiku are on this not-yet-release plan).
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Got it. That fixed it. I didn't see FreeBSD in that file so I didn't add it originally and OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
I'm assuming I should add the change to versioning.targets here in this PR correct? I don't see that file in http://github.com/dotnet/arcade
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Yes, this PR is the correct place for it; it's the first time we are building a platform-aware library where this validation kicks in.
Also, when you will run the tests, some of them will fail, you may need to sprinkle some TestPlatforms.OpenBSD attribute condition or if (!OSPlatform.Create("OPENBSD"))in C# code to skip them. You will need to make some understanding why those failed/skipped and whether that's expected. In case that's not expected (there is some bug), you can either fix it as part of this PR or open an issue then add this attribute [ActiveIssue("https://github.com/dotnet/runtime/issues/<your issue number>", TestPlatforms.OpenBSD)].
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OperatingSystem.OpenBSD exists but I forgot it is internal vs public.
There was a typo in my comment I've edited; it was meant to be OSPlatform.OpenBSD and OSPlatform.Create("OPENBSD).
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I don't see that file in http://github.com/dotnet/arcade
Arcade shared directory is eng/common which gets autosync by bot: https://github.com/dotnet/runtime/blob/a3359b88167e537ef31281887bb259461391f8f6/eng/common/README.mdversioning.targets is outside of it.
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You can merge sethjackson#1 and that change will show up here. With those changes, all tests are appropriately skipped and others passing.
/home/am11/th/artifacts/bin/testhost/net11.0-openbsd-Debug-x64/dotnet exec --runtimeconfig System.Net.NetworkInformation.Functional.Tests.runtimeconfig.json --depsfile System.Net.NetworkInformation.Functional.Tests.deps.json xunit.console.dll System.Net.NetworkInformation.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
~/system.netinfo ~/system.netinfo
Discovering: System.Net.NetworkInformation.Functional.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Net.NetworkInformation.Functional.Tests (found 64 of 99 test cases)
Starting: System.Net.NetworkInformation.Functional.Tests (parallel test collections = on [5 threads], stop on fail = off)
Finished: System.Net.NetworkInformation.Functional.Tests
=== TEST EXECUTION SUMMARY ===
System.Net.NetworkInformation.Functional.Tests Total: 229, Errors: 0, Failed: 0, Skipped: 0, Time: 1.820s

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Merge pull request#1from am11/feature/port/openbsd-networkinfo
2f1b02d
Implement missing pieces for NetworkInformation
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Oh nice! I doubt I would have figured that out myself. I merged it. Thanks!
One thing I noticed is that this file:
https://github.com/dotnet/runtime/blob/main/src/tests/Common/XUnitWrapperGenerator/TestPlatforms.cs
Is missing the OpenBSD constant and is therfore missing from AnyUnix as well. I'm not sure that it matters or not but just wanted to point it out as otherwise I wasn't sure where the TestPlatforms.OpenBSD constant was coming from.
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It's coming from arcade SDK: https://github.com/dotnet/arcade/blob/5f63985fe82894604956e653d43c161ebbc1b576/src/Microsoft.DotNet.XUnitExtensions.Shared/TestPlatforms.cs#L26
src/tests: runtime tests (coreclr-vm,gc,jit,aot etc.).
src/libraries/<name>/tests: runtime libraries tests.
We can add OpenBSD in runtime tests later on, bootstrap docs cover both.

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Anything else that is needed before this can be merged?
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LGTM, but I would prefer if also somebody else from @dotnet/ncl gave this a look
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Remaining failures are unrelated; random timeouts. cc @dotnet/ncl
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/ba-g Test failures are unrelated timeouts
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eiriktsarpalis pushed a commit
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@sethjackson@am11
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Add OpenBSD support in System.Net.NetworkInformation (#129279)
4fcdbb8
There is already support in `System.Native` for this. Just need to
enable it in the managed layer for OpenBSD.
Note that FreeBSD includes what appears to be a spurious FreeBSD
specific `Interop.Libraries.cs` file which only contains the `MsQuic`
constant and since that doesn't appear to be used in
`System.Net.NetworkInformation` I haven't included it here and `msquic`
won't work as it stands on OpenBSD today anyways.
Contributes to #124911.
---------
Co-authored-by: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Co-authored-by: Radek Zikmund <32671551+rzikm@users.noreply.github.com>
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