Getting flags undefined errors.

[bbhikkaji]

Was trying to play with it but go get gives following errors

go get github.com/vishvananda/netlink

github.com/vishvananda/netlink

vishvananda/netlink/bridge_linux.go:22:27: undefined: unix.IFLA_EXT_MASK
vishvananda/netlink/bridge_linux.go:38:9: undefined: unix.IFLA_AF_SPEC
vishvananda/netlink/bridge_linux.go:90:21: undefined: unix.IFLA_AF_SPEC
vishvananda/netlink/link_linux.go:424:23: undefined: unix.IFLA_VFINFO_LIST
vishvananda/netlink/link_linux.go:454:23: undefined: unix.IFLA_VFINFO_LIST
vishvananda/netlink/link_linux.go:484:23: undefined: unix.IFLA_VFINFO_LIST
vishvananda/netlink/link_linux.go:515:23: undefined: unix.IFLA_VFINFO_LIST
vishvananda/netlink/link_linux.go:549:23: undefined: unix.IFLA_VFINFO_LIST
vishvananda/netlink/link_linux.go:596:23: undefined: unix.IFLA_VFINFO_LIST
vishvananda/netlink/link_linux.go:720:23: undefined: unix.IFLA_NET_NS_FD
vishvananda/netlink/link_linux.go:720:23: too many errors

[jellonek]

Which version of golang are you using? These constants are defined in https://github.com/golang/sys/blob/master/unix/linux/types.go

[bbhikkaji]

i am using 1.6.2

go version go1.6.2 linux/amd64

[jellonek]

So please upgrade to more recent version.

[ianvernon]

I hit this as well - this is because the Makefile gets dependencies via go get: https://github.com/vishvananda/netlink/blob/09a46322b222b19a80cd0d2a0e09e1678e150333/Makefile (which gets the latest version, from master, of the libraries)

I will update this when I find a version of golang.org/x/sys/unix that works with this package.

[jsleeio]

I am also seeing this issue. Interestingly it happens when I use glide to manage vendoring but not when I use dep.

However, my project also uses the Kubernetes client-go library which really doesn't work well with dep yet, so I'm stuck with glide. :-(

edit: this may be because the Kube folks have pinned a specific commit for golang.org/x/sys/unix :-(

[trevrosen]

I ran into this as well. For what it's worth, this got me past the error to a successful build in my Docker container (using dep and go v1.11):

[[constraint]]
  branch = "master"
  name = "github.com/vishvananda/netlink"

[[override]]
  branch = "release-branch.go1.11"
  name = "golang.org/x/sys"

YMMV of course. I'm not really certain why this worked correctly, but at this point I've spent too much time on it to care much beyond documenting it here for the next person. 😸

[fredhsu]

Thanks @trevrosen that helped me out! Here's a glide version for those who might be using it for k8s client:

import:
- package: k8s.io/client-go
  version: v7.0.0
- package: github.com/vishvananda/netlink
  version: master
- package: golang.org/x/sys
  version: release-branch.go1.11