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CHANGELOG

v1.7.2

  • [Improvement]: updated dependencies, test with Go 1.20.

v1.7.1

  • [Bug Fix]: test only changes to avoid failures on big endian machines.

v1.7.0

This is the first release of package netlink that only supports Go 1.18+. Users on older versions of Go must use v1.6.2.

  • [Improvement]: drop support for older versions of Go so we can begin using modern versions of x/sys and other dependencies.

v1.6.2

This is the last release of package netlink that supports Go 1.17 and below.

  • [Bug Fix] commit: undo update to golang.org/x/sys which would force the minimum Go version of this package to Go 1.17 due to use of unsafe.Slice. We encourage users to use the latest stable version of Go where possible, but continue to maintain some compatibility with older versions of Go as long as it is reasonable to do so.

v1.6.1

  • [Deprecation] commit: the netlink.Socket interface has been marked as deprecated. The abstraction is awkward to use properly and disables much of the functionality of the Conn type when the basic interface is implemented. Do not use.

v1.6.0

This is the first release of package netlink that only supports Go 1.13+. Users on older versions of Go must use v1.5.0.

  • [New API] commit: the netlink.Config.Strict field can be used to apply a more strict default set of options to a netlink.Conn. This is recommended for applications running on modern Linux kernels, but cannot be enabled by default because the options may require a more recent kernel than the minimum kernel version that Go supports. See the documentation for details.
  • [Improvement]: broke some integration tests into a separate Go module so the default go.mod for package netlink has fewer dependencies.

v1.5.0

This is the last release of package netlink that supports Go 1.12.

  • [New API] commit: the netlink.Config.PID field can be used to specify an explicit port ID when binding the netlink socket. This is intended for advanced use cases and most callers should leave this field set to 0.
  • [Improvement]: more low-level functionality ported to github.com/mdlayher/socket, reducing package complexity.

v1.4.2

  • [Documentation] commit: the netlink.Config.DisableNSLockThread now properly uses Go's deprecated identifier convention. This option has been a noop for a long time and should not be used.
  • [Improvement] #189: the package now uses Go 1.17's //go:build identifiers. Thanks @tklauser.
  • [Bug Fix] commit: the netlink.AttributeEncoder's Bytes, String, and Do methods now properly reject byte slices and strings which are too large to fit in the value of a netlink attribute. Thanks @ubiquitousbyte for the report.

v1.4.1

  • [Improvement]: significant runtime network poller integration cleanup through the use of github.com/mdlayher/socket.

v1.4.0

  • [New API] #185: the netlink.AttributeDecoder and netlink.AttributeEncoder types now have methods for dealing with signed integers: Int8, Int16, Int32, and Int64. These are necessary for working with rtnetlink's XDP APIs. Thanks @fbegyn.

v1.3.2

  • [Improvement] commit: github.com/google/go-cmp is no longer a (non-test) dependency of this module.

v1.3.1

  • [Improvement]: many internal cleanups and simplifications. The library is now slimmer and features less internal indirection. There are no user-facing changes in this release.

v1.3.0

  • [New API] #176: netlink.OpError now has Message and Offset fields which are populated when the kernel returns netlink extended acknowledgement data along with an error code. The caller can turn on this option by using netlink.Conn.SetOption(netlink.ExtendedAcknowledge, true).
  • [New API] commit: the netlink.GetStrictCheck option can be used to tell the kernel to be more strict when parsing requests. This enables more safety checks and can allow the kernel to perform more advanced request filtering in subsystems such as route netlink.

v1.2.1

  • [Bug Fix] commit: netlink.SetBPF will no longer panic if an empty BPF filter is set.
  • [Improvement] commit: the library now uses https://github.com/josharian/native to provide the system's native endianness at compile time, rather than re-computing it many times at runtime.

v1.2.0

This is the first release of package netlink that only supports Go 1.12+. Users on older versions of Go must use v1.1.1.

  • [Improvement] #173: support for Go 1.11 and below has been dropped. All users are highly recommended to use a stable and supported release of Go for their applications.
  • [Performance] #171: netlink.Conn no longer requires a locked OS thread for the vast majority of operations, which should result in a significant speedup for highly concurrent callers. Thanks @ti-mo.
  • [Bug Fix] #169: calls to netlink.Conn.Close are now able to unblock concurrent calls to netlink.Conn.Receive and other blocking operations.

v1.1.1

This is the last release of package netlink that supports Go 1.11.

  • [Improvement] #165: netlink.Conn SetReadBuffer and SetWriteBuffer methods now attempt the SO_*BUFFORCE socket options to possibly ignore system limits given elevated caller permissions. Thanks @MarkusBauer.
  • [Note] commit: netlink.Conn.Close has had a long-standing bug #162 related to internal concurrency handling where a call to Close is not sufficient to unblock pending reads. To effectively fix this issue, it is necessary to drop support for Go 1.11 and below. This will be fixed in a future release, but a workaround is noted in the method documentation as of now.

v1.1.0

  • [New API] #157: the netlink.AttributeDecoder.TypeFlags method enables retrieval of the type bits stored in a netlink attribute's type field, because the existing Type method masks away these bits. Thanks @ti-mo!
  • [Performance] #157: netlink.AttributeDecoder now decodes netlink attributes on demand, enabling callers who only need a limited number of attributes to exit early from decoding loops. Thanks @ti-mo!
  • [Improvement] #161: netlink.Conn system calls are now ready for Go 1.14+'s changes to goroutine preemption. See the PR for details.

v1.0.0

  • Initial stable commit.