113 lines
3.5 KiB
Go
113 lines
3.5 KiB
Go
package netlink
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import (
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"fmt"
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"github.com/vishvananda/netlink/nl"
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"golang.org/x/sys/unix"
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)
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// BridgeVlanList gets a map of device id to bridge vlan infos.
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// Equivalent to: `bridge vlan show`
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func BridgeVlanList() (map[int32][]*nl.BridgeVlanInfo, error) {
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return pkgHandle.BridgeVlanList()
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}
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// BridgeVlanList gets a map of device id to bridge vlan infos.
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// Equivalent to: `bridge vlan show`
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func (h *Handle) BridgeVlanList() (map[int32][]*nl.BridgeVlanInfo, error) {
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req := h.newNetlinkRequest(unix.RTM_GETLINK, unix.NLM_F_DUMP)
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msg := nl.NewIfInfomsg(unix.AF_BRIDGE)
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req.AddData(msg)
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req.AddData(nl.NewRtAttr(unix.IFLA_EXT_MASK, nl.Uint32Attr(uint32(nl.RTEXT_FILTER_BRVLAN))))
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msgs, err := req.Execute(unix.NETLINK_ROUTE, unix.RTM_NEWLINK)
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if err != nil {
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return nil, err
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}
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ret := make(map[int32][]*nl.BridgeVlanInfo)
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for _, m := range msgs {
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msg := nl.DeserializeIfInfomsg(m)
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attrs, err := nl.ParseRouteAttr(m[msg.Len():])
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if err != nil {
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return nil, err
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}
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for _, attr := range attrs {
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switch attr.Attr.Type {
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case unix.IFLA_AF_SPEC:
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//nested attr
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nestAttrs, err := nl.ParseRouteAttr(attr.Value)
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if err != nil {
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return nil, fmt.Errorf("failed to parse nested attr %v", err)
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}
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for _, nestAttr := range nestAttrs {
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switch nestAttr.Attr.Type {
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case nl.IFLA_BRIDGE_VLAN_INFO:
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vlanInfo := nl.DeserializeBridgeVlanInfo(nestAttr.Value)
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ret[msg.Index] = append(ret[msg.Index], vlanInfo)
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}
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}
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}
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}
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}
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return ret, nil
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}
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// BridgeVlanAdd adds a new vlan filter entry
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// Equivalent to: `bridge vlan add dev DEV vid VID [ pvid ] [ untagged ] [ self ] [ master ]`
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func BridgeVlanAdd(link Link, vid uint16, pvid, untagged, self, master bool) error {
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return pkgHandle.BridgeVlanAdd(link, vid, pvid, untagged, self, master)
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}
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// BridgeVlanAdd adds a new vlan filter entry
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// Equivalent to: `bridge vlan add dev DEV vid VID [ pvid ] [ untagged ] [ self ] [ master ]`
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func (h *Handle) BridgeVlanAdd(link Link, vid uint16, pvid, untagged, self, master bool) error {
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return h.bridgeVlanModify(unix.RTM_SETLINK, link, vid, pvid, untagged, self, master)
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}
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// BridgeVlanDel adds a new vlan filter entry
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// Equivalent to: `bridge vlan del dev DEV vid VID [ pvid ] [ untagged ] [ self ] [ master ]`
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func BridgeVlanDel(link Link, vid uint16, pvid, untagged, self, master bool) error {
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return pkgHandle.BridgeVlanDel(link, vid, pvid, untagged, self, master)
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}
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// BridgeVlanDel adds a new vlan filter entry
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// Equivalent to: `bridge vlan del dev DEV vid VID [ pvid ] [ untagged ] [ self ] [ master ]`
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func (h *Handle) BridgeVlanDel(link Link, vid uint16, pvid, untagged, self, master bool) error {
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return h.bridgeVlanModify(unix.RTM_DELLINK, link, vid, pvid, untagged, self, master)
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}
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func (h *Handle) bridgeVlanModify(cmd int, link Link, vid uint16, pvid, untagged, self, master bool) error {
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base := link.Attrs()
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h.ensureIndex(base)
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req := h.newNetlinkRequest(cmd, unix.NLM_F_ACK)
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msg := nl.NewIfInfomsg(unix.AF_BRIDGE)
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msg.Index = int32(base.Index)
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req.AddData(msg)
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br := nl.NewRtAttr(unix.IFLA_AF_SPEC, nil)
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var flags uint16
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if self {
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flags |= nl.BRIDGE_FLAGS_SELF
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}
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if master {
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flags |= nl.BRIDGE_FLAGS_MASTER
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}
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if flags > 0 {
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br.AddRtAttr(nl.IFLA_BRIDGE_FLAGS, nl.Uint16Attr(flags))
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}
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vlanInfo := &nl.BridgeVlanInfo{Vid: vid}
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if pvid {
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vlanInfo.Flags |= nl.BRIDGE_VLAN_INFO_PVID
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}
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if untagged {
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vlanInfo.Flags |= nl.BRIDGE_VLAN_INFO_UNTAGGED
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}
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br.AddRtAttr(nl.IFLA_BRIDGE_VLAN_INFO, vlanInfo.Serialize())
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req.AddData(br)
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_, err := req.Execute(unix.NETLINK_ROUTE, 0)
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return err
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}
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