Revert "Use netlink.SetPromiscOn instead of iproute2 command"

vendor/github.com/vishvananda/netlink/handle_linux.go

@@ -1,86 +0,0 @@
-package netlink
-
-import (
-	"syscall"
-
-	"github.com/vishvananda/netlink/nl"
-	"github.com/vishvananda/netns"
-)
-
-// Empty handle used by the netlink package methods
-var pkgHandle = &Handle{}
-
-// Handle is an handle for the netlink requests on a
-// specific network namespace. All the requests on the
-// same netlink family share the same netlink socket,
-// which gets released when the handle is deleted.
-type Handle struct {
-	sockets      map[int]*nl.SocketHandle
-	lookupByDump bool
-}
-
-// SupportsNetlinkFamily reports whether the passed netlink family is supported by this Handle
-func (h *Handle) SupportsNetlinkFamily(nlFamily int) bool {
-	_, ok := h.sockets[nlFamily]
-	return ok
-}
-
-// NewHandle returns a netlink handle on the current network namespace.
-// Caller may specify the netlink families the handle should support.
-// If no families are specified, all the families the netlink package
-// supports will be automatically added.
-func NewHandle(nlFamilies ...int) (*Handle, error) {
-	return newHandle(netns.None(), netns.None(), nlFamilies...)
-}
-
-// NewHandle returns a netlink handle on the network namespace
-// specified by ns. If ns=netns.None(), current network namespace
-// will be assumed
-func NewHandleAt(ns netns.NsHandle, nlFamilies ...int) (*Handle, error) {
-	return newHandle(ns, netns.None(), nlFamilies...)
-}
-
-// NewHandleAtFrom works as NewHandle but allows client to specify the
-// new and the origin netns Handle.
-func NewHandleAtFrom(newNs, curNs netns.NsHandle) (*Handle, error) {
-	return newHandle(newNs, curNs)
-}
-
-func newHandle(newNs, curNs netns.NsHandle, nlFamilies ...int) (*Handle, error) {
-	h := &Handle{sockets: map[int]*nl.SocketHandle{}}
-	fams := nl.SupportedNlFamilies
-	if len(nlFamilies) != 0 {
-		fams = nlFamilies
-	}
-	for _, f := range fams {
-		s, err := nl.GetNetlinkSocketAt(newNs, curNs, f)
-		if err != nil {
-			return nil, err
-		}
-		h.sockets[f] = &nl.SocketHandle{Socket: s}
-	}
-	return h, nil
-}
-
-// Delete releases the resources allocated to this handle
-func (h *Handle) Delete() {
-	for _, sh := range h.sockets {
-		sh.Close()
-	}
-	h.sockets = nil
-}
-
-func (h *Handle) newNetlinkRequest(proto, flags int) *nl.NetlinkRequest {
-	// Do this so that package API still use nl package variable nextSeqNr
-	if h.sockets == nil {
-		return nl.NewNetlinkRequest(proto, flags)
-	}
-	return &nl.NetlinkRequest{
-		NlMsghdr: syscall.NlMsghdr{
-			Len:   uint32(syscall.SizeofNlMsghdr),
-			Type:  uint16(proto),
-			Flags: syscall.NLM_F_REQUEST | uint16(flags),
-		},
-		Sockets: h.sockets,
-	}
-}