add(crit): other os support

[cg10036]

When using CRIT on macOS, the following errors occur:

# github.com/checkpoint-restore/go-criu/v7/crit
../../../go/pkg/mod/github.com/checkpoint-restore/go-criu/[email protected]/crit/utils.go:329:15: undefined: syscall.AF_NETLINK
../../../go/pkg/mod/github.com/checkpoint-restore/go-criu/[email protected]/crit/utils.go:331:15: undefined: syscall.AF_BRIDGE
../../../go/pkg/mod/github.com/checkpoint-restore/go-criu/[email protected]/crit/utils.go:333:15: undefined: syscall.AF_KEY
../../../go/pkg/mod/github.com/checkpoint-restore/go-criu/[email protected]/crit/utils.go:335:15: undefined: syscall.AF_PACKET
../../../go/pkg/mod/github.com/checkpoint-restore/go-criu/[email protected]/crit/utils.go:359:15: undefined: syscall.SOCK_PACKET
../../../go/pkg/mod/github.com/checkpoint-restore/go-criu/[email protected]/crit/utils.go:381:15: undefined: syscall.IPPROTO_UDPLITE

I believe that CRIT can be sufficiently supported even on non-Linux platforms. Therefore, I have added the necessary support.

[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 49.80%. Comparing base (47757dc) to head (b9d8fad).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
crit/utils.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #197      +/-   ##
==========================================
+ Coverage   48.83%   49.80%   +0.97%     
==========================================
  Files          21       21              
  Lines        2353     2307      -46     
==========================================
  Hits         1149     1149              
+ Misses       1065     1019      -46     
  Partials      139      139              

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[adrianreber]

Thanks. Can you add a CI run on a non Linux platform. To ensure we do not break non Linux support in the future.

[cg10036]

I have added tests for macOS. However, since I only have access to a Mac, I was unable to create tests for the Windows environment. Additionally, I haven't written many tests before, so I'm not sure if I did them correctly. Could you please review the changes? Thank you.

[adrianreber]

@rst0git @snprajwal The failures using the criu master branch is probably related to outdated image protobuf definitions. Can anyone of you update the definitions in this repository to the latest version from CRIU upstream.

[snprajwal]

@cg10036 could you please rebase your changes on top of the master branch? Also, it would be great if you could squash the commits down into a single logical commit :) we tend to avoid fixup commits in general, since they pollute the commit history of the project.

[cg10036]

I've rebased and squashed the commits as requested. Let me know if you need anything else!

[adrianreber]

@rst0git @snprajwal Looks ready to me. Anything from your side?

[rst0git]

LGTM

@cg10036 Thank you for working on this!

[snprajwal]

LGTM!