FreeBSD: System.Net.NetworkInformation is missing

[wfurt]

This is part of https://github.com/dotnet/corefx/issues/1626

Many tests failing
System.Net.Ping.Functional.Tests.dll, 7
System.Net.NetworkInformation.Functional.Tests.dll, 31
System.Net.Mail.Functional.Tests.dll, 40

[ghost]

It would probably require us to fill https://github.com/dotnet/corefx/tree/bffef76f6af208e2042a2f27bc081ee908bb390b/src/System.Net.NetworkInformation/src/System/Net/NetworkInformation with:

BsdPAddressInformation.cs
BsdIPGlobalProperties.cs
etc.

[wfurt]

There are many similarities with OSX. It would probably make sense to consolidate.

[ghost]

Can we tweak https://github.com/dotnet/corefx/blob/bffef76f6af208e2042a2f27bc081ee908bb390b/src/System.Net.NetworkInformation/src/System.Net.NetworkInformation.csproj#L344 to include BSDs? At the moment, there is:

  <ItemGroup Condition=" '$(TargetsFreeBSD)' == 'true' OR '$(TargetsUnknownUnix)' == 'true' ">
    <Compile Include="System\Net\NetworkInformation\IPGlobalPropertiesPal.UnknownUnix.cs" />
    <Compile Include="System\Net\NetworkInformation\NetworkInterfacePal.UnknownUnix.cs" />
    <Compile Include="System\Net\NetworkInformation\NetworkAddressChange.UnknownUnix.cs" />
  </ItemGroup>

would be cool to check if all the BSDs and macos agree upon same APIs.

[wfurt]

remaining work is tracked in dotnet/corefx#33530. this was resolved by dotnet/corefx#33527.