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Add ipvtap link support #607

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merged 1 commit into from
May 8, 2021
Merged

Add ipvtap link support #607

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13 changes: 13 additions & 0 deletions link.go
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Original file line number Diff line number Diff line change
Expand Up @@ -456,6 +456,19 @@ func (ipvlan *IPVlan) Type() string {
return "ipvlan"
}

// IPVtap - IPVtap is a virtual interfaces based on ipvlan
type IPVtap struct {
IPVlan
}

func (ipvtap *IPVtap) Attrs() *LinkAttrs {
return &ipvtap.LinkAttrs
}

func (ipvtap IPVtap) Type() string {
return "ipvtap"
}

// VlanProtocol type
type VlanProtocol int

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20 changes: 20 additions & 0 deletions link_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1394,6 +1394,10 @@ func (h *Handle) linkModify(link Link, flags int) error {
data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil)
data.AddRtAttr(nl.IFLA_IPVLAN_MODE, nl.Uint16Attr(uint16(link.Mode)))
data.AddRtAttr(nl.IFLA_IPVLAN_FLAG, nl.Uint16Attr(uint16(link.Flag)))
case *IPVtap:
data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil)
data.AddRtAttr(nl.IFLA_IPVLAN_MODE, nl.Uint16Attr(uint16(link.Mode)))
data.AddRtAttr(nl.IFLA_IPVLAN_FLAG, nl.Uint16Attr(uint16(link.Flag)))
case *Macvlan:
if link.Mode != MACVLAN_MODE_DEFAULT {
data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil)
Expand Down Expand Up @@ -1665,6 +1669,8 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) {
link = &Bond{}
case "ipvlan":
link = &IPVlan{}
case "ipvtap":
link = &IPVtap{}
case "macvlan":
link = &Macvlan{}
case "macvtap":
Expand Down Expand Up @@ -1716,6 +1722,8 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) {
parseBondData(link, data)
case "ipvlan":
parseIPVlanData(link, data)
case "ipvtap":
parseIPVtapData(link, data)
case "macvlan":
parseMacvlanData(link, data)
case "macvtap":
Expand Down Expand Up @@ -2401,6 +2409,18 @@ func parseIPVlanData(link Link, data []syscall.NetlinkRouteAttr) {
}
}

func parseIPVtapData(link Link, data []syscall.NetlinkRouteAttr) {
ipv := link.(*IPVtap)
for _, datum := range data {
switch datum.Attr.Type {
case nl.IFLA_IPVLAN_MODE:
ipv.Mode = IPVlanMode(native.Uint32(datum.Value[0:4]))
case nl.IFLA_IPVLAN_FLAG:
ipv.Flag = IPVlanFlag(native.Uint32(datum.Value[0:4]))
}
}
}

func parseMacvtapData(link Link, data []syscall.NetlinkRouteAttr) {
macv := link.(*Macvtap)
parseMacvlanData(&macv.Macvlan, data)
Expand Down