diff options
Diffstat (limited to 'vendor/github.com/vishvananda/netlink/link_linux.go')
| -rw-r--r-- | vendor/github.com/vishvananda/netlink/link_linux.go | 1120 |
1 files changed, 892 insertions, 228 deletions
diff --git a/vendor/github.com/vishvananda/netlink/link_linux.go b/vendor/github.com/vishvananda/netlink/link_linux.go index 540191ed8..ec915a0b9 100644 --- a/vendor/github.com/vishvananda/netlink/link_linux.go +++ b/vendor/github.com/vishvananda/netlink/link_linux.go @@ -4,8 +4,11 @@ import ( "bytes" "encoding/binary" "fmt" + "io/ioutil" "net" "os" + "strconv" + "strings" "syscall" "unsafe" @@ -16,7 +19,7 @@ import ( const ( SizeofLinkStats32 = 0x5c - SizeofLinkStats64 = 0xd8 + SizeofLinkStats64 = 0xb8 ) const ( @@ -31,6 +34,12 @@ const ( TUNTAP_MULTI_QUEUE_DEFAULTS TuntapFlag = TUNTAP_MULTI_QUEUE | TUNTAP_NO_PI ) +const ( + VF_LINK_STATE_AUTO uint32 = 0 + VF_LINK_STATE_ENABLE uint32 = 1 + VF_LINK_STATE_DISABLE uint32 = 2 +) + var lookupByDump = false var macvlanModes = [...]uint32{ @@ -113,6 +122,52 @@ func (h *Handle) SetPromiscOn(link Link) error { return err } +// LinkSetAllmulticastOn enables the reception of all hardware multicast packets for the link device. +// Equivalent to: `ip link set $link allmulticast on` +func LinkSetAllmulticastOn(link Link) error { + return pkgHandle.LinkSetAllmulticastOn(link) +} + +// LinkSetAllmulticastOn enables the reception of all hardware multicast packets for the link device. +// Equivalent to: `ip link set $link allmulticast on` +func (h *Handle) LinkSetAllmulticastOn(link Link) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_NEWLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Change = unix.IFF_ALLMULTI + msg.Flags = unix.IFF_ALLMULTI + + msg.Index = int32(base.Index) + req.AddData(msg) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetAllmulticastOff disables the reception of all hardware multicast packets for the link device. +// Equivalent to: `ip link set $link allmulticast off` +func LinkSetAllmulticastOff(link Link) error { + return pkgHandle.LinkSetAllmulticastOff(link) +} + +// LinkSetAllmulticastOff disables the reception of all hardware multicast packets for the link device. +// Equivalent to: `ip link set $link allmulticast off` +func (h *Handle) LinkSetAllmulticastOff(link Link) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_NEWLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Change = unix.IFF_ALLMULTI + msg.Index = int32(base.Index) + req.AddData(msg) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + func MacvlanMACAddrAdd(link Link, addr net.HardwareAddr) error { return pkgHandle.MacvlanMACAddrAdd(link, addr) } @@ -155,24 +210,24 @@ func (h *Handle) macvlanMACAddrChange(link Link, addrs []net.HardwareAddr, mode req.AddData(msg) linkInfo := nl.NewRtAttr(unix.IFLA_LINKINFO, nil) - nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_KIND, nl.NonZeroTerminated(link.Type())) - inner := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + linkInfo.AddRtAttr(nl.IFLA_INFO_KIND, nl.NonZeroTerminated(link.Type())) + inner := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) // IFLA_MACVLAN_MACADDR_MODE = mode b := make([]byte, 4) native.PutUint32(b, mode) - nl.NewRtAttrChild(inner, nl.IFLA_MACVLAN_MACADDR_MODE, b) + inner.AddRtAttr(nl.IFLA_MACVLAN_MACADDR_MODE, b) // populate message with MAC addrs, if necessary switch mode { case nl.MACVLAN_MACADDR_ADD, nl.MACVLAN_MACADDR_DEL: if len(addrs) == 1 { - nl.NewRtAttrChild(inner, nl.IFLA_MACVLAN_MACADDR, []byte(addrs[0])) + inner.AddRtAttr(nl.IFLA_MACVLAN_MACADDR, []byte(addrs[0])) } case nl.MACVLAN_MACADDR_SET: - mad := nl.NewRtAttrChild(inner, nl.IFLA_MACVLAN_MACADDR_DATA, nil) + mad := inner.AddRtAttr(nl.IFLA_MACVLAN_MACADDR_DATA, nil) for _, addr := range addrs { - nl.NewRtAttrChild(mad, nl.IFLA_MACVLAN_MACADDR, []byte(addr)) + mad.AddRtAttr(nl.IFLA_MACVLAN_MACADDR, []byte(addr)) } } @@ -203,7 +258,6 @@ func (h *Handle) SetPromiscOff(link Link) error { msg := nl.NewIfInfomsg(unix.AF_UNSPEC) msg.Change = unix.IFF_PROMISC - msg.Flags = 0 & ^unix.IFF_PROMISC msg.Index = int32(base.Index) req.AddData(msg) @@ -253,7 +307,6 @@ func (h *Handle) LinkSetDown(link Link) error { msg := nl.NewIfInfomsg(unix.AF_UNSPEC) msg.Change = unix.IFF_UP - msg.Flags = 0 & ^unix.IFF_UP msg.Index = int32(base.Index) req.AddData(msg) @@ -378,12 +431,12 @@ func (h *Handle) LinkSetVfHardwareAddr(link Link, vf int, hwaddr net.HardwareAdd req.AddData(msg) data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) - info := nl.NewRtAttrChild(data, nl.IFLA_VF_INFO, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) vfmsg := nl.VfMac{ Vf: uint32(vf), } copy(vfmsg.Mac[:], []byte(hwaddr)) - nl.NewRtAttrChild(info, nl.IFLA_VF_MAC, vfmsg.Serialize()) + info.AddRtAttr(nl.IFLA_VF_MAC, vfmsg.Serialize()) req.AddData(data) _, err := req.Execute(unix.NETLINK_ROUTE, 0) @@ -408,10 +461,41 @@ func (h *Handle) LinkSetVfVlan(link Link, vf, vlan int) error { req.AddData(msg) data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) + vfmsg := nl.VfVlan{ + Vf: uint32(vf), + Vlan: uint32(vlan), + } + info.AddRtAttr(nl.IFLA_VF_VLAN, vfmsg.Serialize()) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetVfVlanQos sets the vlan and qos priority of a vf for the link. +// Equivalent to: `ip link set $link vf $vf vlan $vlan qos $qos` +func LinkSetVfVlanQos(link Link, vf, vlan, qos int) error { + return pkgHandle.LinkSetVfVlanQos(link, vf, vlan, qos) +} + +// LinkSetVfVlanQos sets the vlan and qos priority of a vf for the link. +// Equivalent to: `ip link set $link vf $vf vlan $vlan qos $qos` +func (h *Handle) LinkSetVfVlanQos(link Link, vf, vlan, qos int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) info := nl.NewRtAttrChild(data, nl.IFLA_VF_INFO, nil) vfmsg := nl.VfVlan{ Vf: uint32(vf), Vlan: uint32(vlan), + Qos: uint32(qos), } nl.NewRtAttrChild(info, nl.IFLA_VF_VLAN, vfmsg.Serialize()) req.AddData(data) @@ -438,12 +522,73 @@ func (h *Handle) LinkSetVfTxRate(link Link, vf, rate int) error { req.AddData(msg) data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) - info := nl.NewRtAttrChild(data, nl.IFLA_VF_INFO, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) vfmsg := nl.VfTxRate{ Vf: uint32(vf), Rate: uint32(rate), } - nl.NewRtAttrChild(info, nl.IFLA_VF_TX_RATE, vfmsg.Serialize()) + info.AddRtAttr(nl.IFLA_VF_TX_RATE, vfmsg.Serialize()) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetVfRate sets the min and max tx rate of a vf for the link. +// Equivalent to: `ip link set $link vf $vf min_tx_rate $min_rate max_tx_rate $max_rate` +func LinkSetVfRate(link Link, vf, minRate, maxRate int) error { + return pkgHandle.LinkSetVfRate(link, vf, minRate, maxRate) +} + +// LinkSetVfRate sets the min and max tx rate of a vf for the link. +// Equivalent to: `ip link set $link vf $vf min_tx_rate $min_rate max_tx_rate $max_rate` +func (h *Handle) LinkSetVfRate(link Link, vf, minRate, maxRate int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) + vfmsg := nl.VfRate{ + Vf: uint32(vf), + MinTxRate: uint32(minRate), + MaxTxRate: uint32(maxRate), + } + info.AddRtAttr(nl.IFLA_VF_RATE, vfmsg.Serialize()) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetVfState enables/disables virtual link state on a vf. +// Equivalent to: `ip link set $link vf $vf state $state` +func LinkSetVfState(link Link, vf int, state uint32) error { + return pkgHandle.LinkSetVfState(link, vf, state) +} + +// LinkSetVfState enables/disables virtual link state on a vf. +// Equivalent to: `ip link set $link vf $vf state $state` +func (h *Handle) LinkSetVfState(link Link, vf int, state uint32) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) + vfmsg := nl.VfLinkState{ + Vf: uint32(vf), + LinkState: state, + } + info.AddRtAttr(nl.IFLA_VF_LINK_STATE, vfmsg.Serialize()) req.AddData(data) _, err := req.Execute(unix.NETLINK_ROUTE, 0) @@ -456,7 +601,7 @@ func LinkSetVfSpoofchk(link Link, vf int, check bool) error { return pkgHandle.LinkSetVfSpoofchk(link, vf, check) } -// LinkSetVfSpookfchk enables/disables spoof check on a vf for the link. +// LinkSetVfSpoofchk enables/disables spoof check on a vf for the link. // Equivalent to: `ip link set $link vf $vf spoofchk $check` func (h *Handle) LinkSetVfSpoofchk(link Link, vf int, check bool) error { var setting uint32 @@ -469,7 +614,7 @@ func (h *Handle) LinkSetVfSpoofchk(link Link, vf int, check bool) error { req.AddData(msg) data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) - info := nl.NewRtAttrChild(data, nl.IFLA_VF_INFO, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) if check { setting = 1 } @@ -477,7 +622,7 @@ func (h *Handle) LinkSetVfSpoofchk(link Link, vf int, check bool) error { Vf: uint32(vf), Setting: setting, } - nl.NewRtAttrChild(info, nl.IFLA_VF_SPOOFCHK, vfmsg.Serialize()) + info.AddRtAttr(nl.IFLA_VF_SPOOFCHK, vfmsg.Serialize()) req.AddData(data) _, err := req.Execute(unix.NETLINK_ROUTE, 0) @@ -503,7 +648,7 @@ func (h *Handle) LinkSetVfTrust(link Link, vf int, state bool) error { req.AddData(msg) data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) - info := nl.NewRtAttrChild(data, nl.IFLA_VF_INFO, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) if state { setting = 1 } @@ -511,22 +656,66 @@ func (h *Handle) LinkSetVfTrust(link Link, vf int, state bool) error { Vf: uint32(vf), Setting: setting, } - nl.NewRtAttrChild(info, nl.IFLA_VF_TRUST, vfmsg.Serialize()) + info.AddRtAttr(nl.IFLA_VF_TRUST, vfmsg.Serialize()) req.AddData(data) _, err := req.Execute(unix.NETLINK_ROUTE, 0) return err } +// LinkSetVfNodeGUID sets the node GUID of a vf for the link. +// Equivalent to: `ip link set dev $link vf $vf node_guid $nodeguid` +func LinkSetVfNodeGUID(link Link, vf int, nodeguid net.HardwareAddr) error { + return pkgHandle.LinkSetVfGUID(link, vf, nodeguid, nl.IFLA_VF_IB_NODE_GUID) +} + +// LinkSetVfPortGUID sets the port GUID of a vf for the link. +// Equivalent to: `ip link set dev $link vf $vf port_guid $portguid` +func LinkSetVfPortGUID(link Link, vf int, portguid net.HardwareAddr) error { + return pkgHandle.LinkSetVfGUID(link, vf, portguid, nl.IFLA_VF_IB_PORT_GUID) +} + +// LinkSetVfGUID sets the node or port GUID of a vf for the link. +func (h *Handle) LinkSetVfGUID(link Link, vf int, vfGuid net.HardwareAddr, guidType int) error { + var err error + var guid uint64 + + buf := bytes.NewBuffer(vfGuid) + err = binary.Read(buf, binary.BigEndian, &guid) + if err != nil { + return err + } + + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + data := nl.NewRtAttr(unix.IFLA_VFINFO_LIST, nil) + info := data.AddRtAttr(nl.IFLA_VF_INFO, nil) + vfmsg := nl.VfGUID{ + Vf: uint32(vf), + GUID: guid, + } + info.AddRtAttr(guidType, vfmsg.Serialize()) + req.AddData(data) + + _, err = req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + // LinkSetMaster sets the master of the link device. // Equivalent to: `ip link set $link master $master` -func LinkSetMaster(link Link, master *Bridge) error { +func LinkSetMaster(link Link, master Link) error { return pkgHandle.LinkSetMaster(link, master) } // LinkSetMaster sets the master of the link device. // Equivalent to: `ip link set $link master $master` -func (h *Handle) LinkSetMaster(link Link, master *Bridge) error { +func (h *Handle) LinkSetMaster(link Link, master Link) error { index := 0 if master != nil { masterBase := master.Attrs() @@ -672,69 +861,69 @@ type vxlanPortRange struct { } func addVxlanAttrs(vxlan *Vxlan, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) if vxlan.FlowBased { vxlan.VxlanId = 0 } - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_ID, nl.Uint32Attr(uint32(vxlan.VxlanId))) + data.AddRtAttr(nl.IFLA_VXLAN_ID, nl.Uint32Attr(uint32(vxlan.VxlanId))) if vxlan.VtepDevIndex != 0 { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LINK, nl.Uint32Attr(uint32(vxlan.VtepDevIndex))) + data.AddRtAttr(nl.IFLA_VXLAN_LINK, nl.Uint32Attr(uint32(vxlan.VtepDevIndex))) } if vxlan.SrcAddr != nil { ip := vxlan.SrcAddr.To4() if ip != nil { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LOCAL, []byte(ip)) + data.AddRtAttr(nl.IFLA_VXLAN_LOCAL, []byte(ip)) } else { ip = vxlan.SrcAddr.To16() if ip != nil { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LOCAL6, []byte(ip)) + data.AddRtAttr(nl.IFLA_VXLAN_LOCAL6, []byte(ip)) } } } if vxlan.Group != nil { group := vxlan.Group.To4() if group != nil { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_GROUP, []byte(group)) + data.AddRtAttr(nl.IFLA_VXLAN_GROUP, []byte(group)) } else { group = vxlan.Group.To16() if group != nil { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_GROUP6, []byte(group)) + data.AddRtAttr(nl.IFLA_VXLAN_GROUP6, []byte(group)) } } } - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_TTL, nl.Uint8Attr(uint8(vxlan.TTL))) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_TOS, nl.Uint8Attr(uint8(vxlan.TOS))) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LEARNING, boolAttr(vxlan.Learning)) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_PROXY, boolAttr(vxlan.Proxy)) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_RSC, boolAttr(vxlan.RSC)) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_L2MISS, boolAttr(vxlan.L2miss)) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_L3MISS, boolAttr(vxlan.L3miss)) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_UDP_ZERO_CSUM6_TX, boolAttr(vxlan.UDP6ZeroCSumTx)) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_UDP_ZERO_CSUM6_RX, boolAttr(vxlan.UDP6ZeroCSumRx)) + data.AddRtAttr(nl.IFLA_VXLAN_TTL, nl.Uint8Attr(uint8(vxlan.TTL))) + data.AddRtAttr(nl.IFLA_VXLAN_TOS, nl.Uint8Attr(uint8(vxlan.TOS))) + data.AddRtAttr(nl.IFLA_VXLAN_LEARNING, boolAttr(vxlan.Learning)) + data.AddRtAttr(nl.IFLA_VXLAN_PROXY, boolAttr(vxlan.Proxy)) + data.AddRtAttr(nl.IFLA_VXLAN_RSC, boolAttr(vxlan.RSC)) + data.AddRtAttr(nl.IFLA_VXLAN_L2MISS, boolAttr(vxlan.L2miss)) + data.AddRtAttr(nl.IFLA_VXLAN_L3MISS, boolAttr(vxlan.L3miss)) + data.AddRtAttr(nl.IFLA_VXLAN_UDP_ZERO_CSUM6_TX, boolAttr(vxlan.UDP6ZeroCSumTx)) + data.AddRtAttr(nl.IFLA_VXLAN_UDP_ZERO_CSUM6_RX, boolAttr(vxlan.UDP6ZeroCSumRx)) if vxlan.UDPCSum { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_UDP_CSUM, boolAttr(vxlan.UDPCSum)) + data.AddRtAttr(nl.IFLA_VXLAN_UDP_CSUM, boolAttr(vxlan.UDPCSum)) } if vxlan.GBP { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_GBP, []byte{}) + data.AddRtAttr(nl.IFLA_VXLAN_GBP, []byte{}) } if vxlan.FlowBased { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_FLOWBASED, boolAttr(vxlan.FlowBased)) + data.AddRtAttr(nl.IFLA_VXLAN_FLOWBASED, boolAttr(vxlan.FlowBased)) } if vxlan.NoAge { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_AGEING, nl.Uint32Attr(0)) + data.AddRtAttr(nl.IFLA_VXLAN_AGEING, nl.Uint32Attr(0)) } else if vxlan.Age > 0 { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_AGEING, nl.Uint32Attr(uint32(vxlan.Age))) + data.AddRtAttr(nl.IFLA_VXLAN_AGEING, nl.Uint32Attr(uint32(vxlan.Age))) } if vxlan.Limit > 0 { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LIMIT, nl.Uint32Attr(uint32(vxlan.Limit))) + data.AddRtAttr(nl.IFLA_VXLAN_LIMIT, nl.Uint32Attr(uint32(vxlan.Limit))) } if vxlan.Port > 0 { - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_PORT, htons(uint16(vxlan.Port))) + data.AddRtAttr(nl.IFLA_VXLAN_PORT, htons(uint16(vxlan.Port))) } if vxlan.PortLow > 0 || vxlan.PortHigh > 0 { pr := vxlanPortRange{uint16(vxlan.PortLow), uint16(vxlan.PortHigh)} @@ -742,100 +931,100 @@ func addVxlanAttrs(vxlan *Vxlan, linkInfo *nl.RtAttr) { buf := new(bytes.Buffer) binary.Write(buf, binary.BigEndian, &pr) - nl.NewRtAttrChild(data, nl.IFLA_VXLAN_PORT_RANGE, buf.Bytes()) + data.AddRtAttr(nl.IFLA_VXLAN_PORT_RANGE, buf.Bytes()) } } func addBondAttrs(bond *Bond, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) if bond.Mode >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_MODE, nl.Uint8Attr(uint8(bond.Mode))) + data.AddRtAttr(nl.IFLA_BOND_MODE, nl.Uint8Attr(uint8(bond.Mode))) } if bond.ActiveSlave >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_ACTIVE_SLAVE, nl.Uint32Attr(uint32(bond.ActiveSlave))) + data.AddRtAttr(nl.IFLA_BOND_ACTIVE_SLAVE, nl.Uint32Attr(uint32(bond.ActiveSlave))) } if bond.Miimon >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_MIIMON, nl.Uint32Attr(uint32(bond.Miimon))) + data.AddRtAttr(nl.IFLA_BOND_MIIMON, nl.Uint32Attr(uint32(bond.Miimon))) } if bond.UpDelay >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_UPDELAY, nl.Uint32Attr(uint32(bond.UpDelay))) + data.AddRtAttr(nl.IFLA_BOND_UPDELAY, nl.Uint32Attr(uint32(bond.UpDelay))) } if bond.DownDelay >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_DOWNDELAY, nl.Uint32Attr(uint32(bond.DownDelay))) + data.AddRtAttr(nl.IFLA_BOND_DOWNDELAY, nl.Uint32Attr(uint32(bond.DownDelay))) } if bond.UseCarrier >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_USE_CARRIER, nl.Uint8Attr(uint8(bond.UseCarrier))) + data.AddRtAttr(nl.IFLA_BOND_USE_CARRIER, nl.Uint8Attr(uint8(bond.UseCarrier))) } if bond.ArpInterval >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_ARP_INTERVAL, nl.Uint32Attr(uint32(bond.ArpInterval))) + data.AddRtAttr(nl.IFLA_BOND_ARP_INTERVAL, nl.Uint32Attr(uint32(bond.ArpInterval))) } if bond.ArpIpTargets != nil { - msg := nl.NewRtAttrChild(data, nl.IFLA_BOND_ARP_IP_TARGET, nil) + msg := data.AddRtAttr(nl.IFLA_BOND_ARP_IP_TARGET, nil) for i := range bond.ArpIpTargets { ip := bond.ArpIpTargets[i].To4() if ip != nil { - nl.NewRtAttrChild(msg, i, []byte(ip)) + msg.AddRtAttr(i, []byte(ip)) continue } ip = bond.ArpIpTargets[i].To16() if ip != nil { - nl.NewRtAttrChild(msg, i, []byte(ip)) + msg.AddRtAttr(i, []byte(ip)) } } } if bond.ArpValidate >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_ARP_VALIDATE, nl.Uint32Attr(uint32(bond.ArpValidate))) + data.AddRtAttr(nl.IFLA_BOND_ARP_VALIDATE, nl.Uint32Attr(uint32(bond.ArpValidate))) } if bond.ArpAllTargets >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_ARP_ALL_TARGETS, nl.Uint32Attr(uint32(bond.ArpAllTargets))) + data.AddRtAttr(nl.IFLA_BOND_ARP_ALL_TARGETS, nl.Uint32Attr(uint32(bond.ArpAllTargets))) } if bond.Primary >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_PRIMARY, nl.Uint32Attr(uint32(bond.Primary))) + data.AddRtAttr(nl.IFLA_BOND_PRIMARY, nl.Uint32Attr(uint32(bond.Primary))) } if bond.PrimaryReselect >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_PRIMARY_RESELECT, nl.Uint8Attr(uint8(bond.PrimaryReselect))) + data.AddRtAttr(nl.IFLA_BOND_PRIMARY_RESELECT, nl.Uint8Attr(uint8(bond.PrimaryReselect))) } if bond.FailOverMac >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_FAIL_OVER_MAC, nl.Uint8Attr(uint8(bond.FailOverMac))) + data.AddRtAttr(nl.IFLA_BOND_FAIL_OVER_MAC, nl.Uint8Attr(uint8(bond.FailOverMac))) } if bond.XmitHashPolicy >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_XMIT_HASH_POLICY, nl.Uint8Attr(uint8(bond.XmitHashPolicy))) + data.AddRtAttr(nl.IFLA_BOND_XMIT_HASH_POLICY, nl.Uint8Attr(uint8(bond.XmitHashPolicy))) } if bond.ResendIgmp >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_RESEND_IGMP, nl.Uint32Attr(uint32(bond.ResendIgmp))) + data.AddRtAttr(nl.IFLA_BOND_RESEND_IGMP, nl.Uint32Attr(uint32(bond.ResendIgmp))) } if bond.NumPeerNotif >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_NUM_PEER_NOTIF, nl.Uint8Attr(uint8(bond.NumPeerNotif))) + data.AddRtAttr(nl.IFLA_BOND_NUM_PEER_NOTIF, nl.Uint8Attr(uint8(bond.NumPeerNotif))) } if bond.AllSlavesActive >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_ALL_SLAVES_ACTIVE, nl.Uint8Attr(uint8(bond.AllSlavesActive))) + data.AddRtAttr(nl.IFLA_BOND_ALL_SLAVES_ACTIVE, nl.Uint8Attr(uint8(bond.AllSlavesActive))) } if bond.MinLinks >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_MIN_LINKS, nl.Uint32Attr(uint32(bond.MinLinks))) + data.AddRtAttr(nl.IFLA_BOND_MIN_LINKS, nl.Uint32Attr(uint32(bond.MinLinks))) } if bond.LpInterval >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_LP_INTERVAL, nl.Uint32Attr(uint32(bond.LpInterval))) + data.AddRtAttr(nl.IFLA_BOND_LP_INTERVAL, nl.Uint32Attr(uint32(bond.LpInterval))) } if bond.PackersPerSlave >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_PACKETS_PER_SLAVE, nl.Uint32Attr(uint32(bond.PackersPerSlave))) + data.AddRtAttr(nl.IFLA_BOND_PACKETS_PER_SLAVE, nl.Uint32Attr(uint32(bond.PackersPerSlave))) } if bond.LacpRate >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_AD_LACP_RATE, nl.Uint8Attr(uint8(bond.LacpRate))) + data.AddRtAttr(nl.IFLA_BOND_AD_LACP_RATE, nl.Uint8Attr(uint8(bond.LacpRate))) } if bond.AdSelect >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_AD_SELECT, nl.Uint8Attr(uint8(bond.AdSelect))) + data.AddRtAttr(nl.IFLA_BOND_AD_SELECT, nl.Uint8Attr(uint8(bond.AdSelect))) } if bond.AdActorSysPrio >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_AD_ACTOR_SYS_PRIO, nl.Uint16Attr(uint16(bond.AdActorSysPrio))) + data.AddRtAttr(nl.IFLA_BOND_AD_ACTOR_SYS_PRIO, nl.Uint16Attr(uint16(bond.AdActorSysPrio))) } if bond.AdUserPortKey >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_AD_USER_PORT_KEY, nl.Uint16Attr(uint16(bond.AdUserPortKey))) + data.AddRtAttr(nl.IFLA_BOND_AD_USER_PORT_KEY, nl.Uint16Attr(uint16(bond.AdUserPortKey))) } if bond.AdActorSystem != nil { - nl.NewRtAttrChild(data, nl.IFLA_BOND_AD_ACTOR_SYSTEM, []byte(bond.AdActorSystem)) + data.AddRtAttr(nl.IFLA_BOND_AD_ACTOR_SYSTEM, []byte(bond.AdActorSystem)) } if bond.TlbDynamicLb >= 0 { - nl.NewRtAttrChild(data, nl.IFLA_BOND_TLB_DYNAMIC_LB, nl.Uint8Attr(uint8(bond.TlbDynamicLb))) + data.AddRtAttr(nl.IFLA_BOND_TLB_DYNAMIC_LB, nl.Uint8Attr(uint8(bond.TlbDynamicLb))) } } @@ -853,7 +1042,7 @@ func LinkAdd(link Link) error { } // LinkAdd adds a new link device. The type and features of the device -// are taken fromt the parameters in the link object. +// are taken from the parameters in the link object. // Equivalent to: `ip link add $link` func (h *Handle) LinkAdd(link Link) error { return h.linkModify(link, unix.NLM_F_CREATE|unix.NLM_F_EXCL|unix.NLM_F_ACK) @@ -863,16 +1052,18 @@ func (h *Handle) linkModify(link Link, flags int) error { // TODO: support extra data for macvlan base := link.Attrs() - if base.Name == "" { - return fmt.Errorf("LinkAttrs.Name cannot be empty!") + // if tuntap, then the name can be empty, OS will provide a name + tuntap, isTuntap := link.(*Tuntap) + + if base.Name == "" && !isTuntap { + return fmt.Errorf("LinkAttrs.Name cannot be empty") } - if tuntap, ok := link.(*Tuntap); ok { + if isTuntap { // TODO: support user // TODO: support group - // TODO: support non- persistent if tuntap.Mode < unix.IFF_TUN || tuntap.Mode > unix.IFF_TAP { - return fmt.Errorf("Tuntap.Mode %v unknown!", tuntap.Mode) + return fmt.Errorf("Tuntap.Mode %v unknown", tuntap.Mode) } queues := tuntap.Queues @@ -913,12 +1104,25 @@ func (h *Handle) linkModify(link Link, flags int) error { cleanupFds(fds) return fmt.Errorf("Tuntap IOCTL TUNSETIFF failed [%d], errno %v", i, errno) } + // 1) we only care for the name of the first tap in the multi queue set + // 2) if the original name was empty, the localReq has now the actual name + // + // In addition: + // This ensures that the link name is always identical to what the kernel returns. + // Not only in case of an empty name, but also when using name templates. + // e.g. when the provided name is "tap%d", the kernel replaces %d with the next available number. + if i == 0 { + link.Attrs().Name = strings.Trim(string(localReq.Name[:]), "\x00") + } } - _, _, errno := unix.Syscall(unix.SYS_IOCTL, fds[0].Fd(), uintptr(unix.TUNSETPERSIST), 1) - if errno != 0 { - cleanupFds(fds) - return fmt.Errorf("Tuntap IOCTL TUNSETPERSIST failed, errno %v", errno) + // only persist interface if NonPersist is NOT set + if !tuntap.NonPersist { + _, _, errno := unix.Syscall(unix.SYS_IOCTL, fds[0].Fd(), uintptr(unix.TUNSETPERSIST), 1) + if errno != 0 { + cleanupFds(fds) + return fmt.Errorf("Tuntap IOCTL TUNSETPERSIST failed, errno %v", errno) + } } h.ensureIndex(base) @@ -928,7 +1132,11 @@ func (h *Handle) linkModify(link Link, flags int) error { // TODO: verify MasterIndex is actually a bridge? err := h.LinkSetMasterByIndex(link, base.MasterIndex) if err != nil { - _, _, _ = unix.Syscall(unix.SYS_IOCTL, fds[0].Fd(), uintptr(unix.TUNSETPERSIST), 0) + // un-persist (e.g. allow the interface to be removed) the tuntap + // should not hurt if not set prior, condition might be not needed + if !tuntap.NonPersist { + _, _, _ = unix.Syscall(unix.SYS_IOCTL, fds[0].Fd(), uintptr(unix.TUNSETPERSIST), 0) + } cleanupFds(fds) return err } @@ -978,8 +1186,8 @@ func (h *Handle) linkModify(link Link, flags int) error { native.PutUint32(b, uint32(base.ParentIndex)) data := nl.NewRtAttr(unix.IFLA_LINK, b) req.AddData(data) - } else if link.Type() == "ipvlan" { - return fmt.Errorf("Can't create ipvlan link without ParentIndex") + } else if link.Type() == "ipvlan" || link.Type() == "ipoib" { + return fmt.Errorf("Can't create %s link without ParentIndex", link.Type()) } nameData := nl.NewRtAttr(unix.IFLA_IFNAME, nl.ZeroTerminated(base.Name)) @@ -1010,14 +1218,29 @@ func (h *Handle) linkModify(link Link, flags int) error { req.AddData(rxqueues) } + if base.GSOMaxSegs > 0 { + gsoAttr := nl.NewRtAttr(unix.IFLA_GSO_MAX_SEGS, nl.Uint32Attr(base.GSOMaxSegs)) + req.AddData(gsoAttr) + } + + if base.GSOMaxSize > 0 { + gsoAttr := nl.NewRtAttr(unix.IFLA_GSO_MAX_SIZE, nl.Uint32Attr(base.GSOMaxSize)) + req.AddData(gsoAttr) + } + + if base.Group > 0 { + groupAttr := nl.NewRtAttr(unix.IFLA_GROUP, nl.Uint32Attr(base.Group)) + req.AddData(groupAttr) + } + if base.Namespace != nil { var attr *nl.RtAttr - switch base.Namespace.(type) { + switch ns := base.Namespace.(type) { case NsPid: - val := nl.Uint32Attr(uint32(base.Namespace.(NsPid))) + val := nl.Uint32Attr(uint32(ns)) attr = nl.NewRtAttr(unix.IFLA_NET_NS_PID, val) case NsFd: - val := nl.Uint32Attr(uint32(base.Namespace.(NsFd))) + val := nl.Uint32Attr(uint32(ns)) attr = nl.NewRtAttr(unix.IFLA_NET_NS_FD, val) } @@ -1029,47 +1252,56 @@ func (h *Handle) linkModify(link Link, flags int) error { } linkInfo := nl.NewRtAttr(unix.IFLA_LINKINFO, nil) - nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_KIND, nl.NonZeroTerminated(link.Type())) + linkInfo.AddRtAttr(nl.IFLA_INFO_KIND, nl.NonZeroTerminated(link.Type())) switch link := link.(type) { case *Vlan: b := make([]byte, 2) native.PutUint16(b, uint16(link.VlanId)) - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) - nl.NewRtAttrChild(data, nl.IFLA_VLAN_ID, b) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + data.AddRtAttr(nl.IFLA_VLAN_ID, b) + + if link.VlanProtocol != VLAN_PROTOCOL_UNKNOWN { + data.AddRtAttr(nl.IFLA_VLAN_PROTOCOL, htons(uint16(link.VlanProtocol))) + } case *Veth: - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) - peer := nl.NewRtAttrChild(data, nl.VETH_INFO_PEER, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + peer := data.AddRtAttr(nl.VETH_INFO_PEER, nil) nl.NewIfInfomsgChild(peer, unix.AF_UNSPEC) - nl.NewRtAttrChild(peer, unix.IFLA_IFNAME, nl.ZeroTerminated(link.PeerName)) + peer.AddRtAttr(unix.IFLA_IFNAME, nl.ZeroTerminated(link.PeerName)) if base.TxQLen >= 0 { - nl.NewRtAttrChild(peer, unix.IFLA_TXQLEN, nl.Uint32Attr(uint32(base.TxQLen))) + peer.AddRtAttr(unix.IFLA_TXQLEN, nl.Uint32Attr(uint32(base.TxQLen))) } if base.MTU > 0 { - nl.NewRtAttrChild(peer, unix.IFLA_MTU, nl.Uint32Attr(uint32(base.MTU))) + peer.AddRtAttr(unix.IFLA_MTU, nl.Uint32Attr(uint32(base.MTU))) + } + if link.PeerHardwareAddr != nil { + peer.AddRtAttr(unix.IFLA_ADDRESS, []byte(link.PeerHardwareAddr)) } - case *Vxlan: addVxlanAttrs(link, linkInfo) case *Bond: addBondAttrs(link, linkInfo) case *IPVlan: - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) - nl.NewRtAttrChild(data, nl.IFLA_IPVLAN_MODE, nl.Uint16Attr(uint16(link.Mode))) + 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 := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) - nl.NewRtAttrChild(data, nl.IFLA_MACVLAN_MODE, nl.Uint32Attr(macvlanModes[link.Mode])) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + data.AddRtAttr(nl.IFLA_MACVLAN_MODE, nl.Uint32Attr(macvlanModes[link.Mode])) } case *Macvtap: if link.Mode != MACVLAN_MODE_DEFAULT { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) - nl.NewRtAttrChild(data, nl.IFLA_MACVLAN_MODE, nl.Uint32Attr(macvlanModes[link.Mode])) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + data.AddRtAttr(nl.IFLA_MACVLAN_MODE, nl.Uint32Attr(macvlanModes[link.Mode])) } case *Gretap: addGretapAttrs(link, linkInfo) case *Iptun: addIptunAttrs(link, linkInfo) + case *Ip6tnl: + addIp6tnlAttrs(link, linkInfo) case *Sittun: addSittunAttrs(link, linkInfo) case *Gretun: @@ -1082,6 +1314,10 @@ func (h *Handle) linkModify(link Link, flags int) error { addBridgeAttrs(link, linkInfo) case *GTP: addGTPAttrs(link, linkInfo) + case *Xfrmi: + addXfrmiAttrs(link, linkInfo) + case *IPoIB: + addIPoIBAttrs(link, linkInfo) } req.AddData(linkInfo) @@ -1170,6 +1406,9 @@ func (h *Handle) LinkByName(name string) (Link, error) { msg := nl.NewIfInfomsg(unix.AF_UNSPEC) req.AddData(msg) + attr := nl.NewRtAttr(unix.IFLA_EXT_MASK, nl.Uint32Attr(nl.RTEXT_FILTER_VF)) + req.AddData(attr) + nameData := nl.NewRtAttr(unix.IFLA_IFNAME, nl.ZeroTerminated(name)) req.AddData(nameData) @@ -1202,6 +1441,9 @@ func (h *Handle) LinkByAlias(alias string) (Link, error) { msg := nl.NewIfInfomsg(unix.AF_UNSPEC) req.AddData(msg) + attr := nl.NewRtAttr(unix.IFLA_EXT_MASK, nl.Uint32Attr(nl.RTEXT_FILTER_VF)) + req.AddData(attr) + nameData := nl.NewRtAttr(unix.IFLA_IFALIAS, nl.ZeroTerminated(alias)) req.AddData(nameData) @@ -1228,6 +1470,8 @@ func (h *Handle) LinkByIndex(index int) (Link, error) { msg := nl.NewIfInfomsg(unix.AF_UNSPEC) msg.Index = int32(index) req.AddData(msg) + attr := nl.NewRtAttr(unix.IFLA_EXT_MASK, nl.Uint32Attr(nl.RTEXT_FILTER_VF)) + req.AddData(attr) return execGetLink(req) } @@ -1270,10 +1514,12 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { base.Promisc = 1 } var ( - link Link - stats32 []byte - stats64 []byte - linkType string + link Link + stats32 *LinkStatistics32 + stats64 *LinkStatistics64 + linkType string + linkSlave LinkSlave + slaveType string ) for _, attr := range attrs { switch attr.Attr.Type { @@ -1313,18 +1559,26 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { link = &Gretap{} case "ipip": link = &Iptun{} + case "ip6tnl": + link = &Ip6tnl{} case "sit": link = &Sittun{} case "gre": link = &Gretun{} case "ip6gre": link = &Gretun{} - case "vti": + case "vti", "vti6": link = &Vti{} case "vrf": link = &Vrf{} case "gtp": link = >P{} + case "xfrm": + link = &Xfrmi{} + case "tun": + link = &Tuntap{} + case "ipoib": + link = &IPoIB{} default: link = &GenericLink{LinkType: linkType} } @@ -1352,13 +1606,15 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { parseGretapData(link, data) case "ipip": parseIptunData(link, data) + case "ip6tnl": + parseIp6tnlData(link, data) case "sit": parseSittunData(link, data) case "gre": parseGretunData(link, data) case "ip6gre": parseGretunData(link, data) - case "vti": + case "vti", "vti6": parseVtiData(link, data) case "vrf": parseVrfData(link, data) @@ -1366,6 +1622,27 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { parseBridgeData(link, data) case "gtp": parseGTPData(link, data) + case "xfrm": + parseXfrmiData(link, data) + case "tun": + parseTuntapData(link, data) + case "ipoib": + parseIPoIBData(link, data) + } + case nl.IFLA_INFO_SLAVE_KIND: + slaveType = string(info.Value[:len(info.Value)-1]) + switch slaveType { + case "bond": + linkSlave = &BondSlave{} + } + case nl.IFLA_INFO_SLAVE_DATA: + switch slaveType { + case "bond": + data, err := nl.ParseRouteAttr(info.Value) + if err != nil { + return nil, err + } + parseBondSlaveData(linkSlave, data) } } } @@ -1392,9 +1669,15 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { case unix.IFLA_IFALIAS: base.Alias = string(attr.Value[:len(attr.Value)-1]) case unix.IFLA_STATS: - stats32 = attr.Value[:] + stats32 = new(LinkStatistics32) + if err := binary.Read(bytes.NewBuffer(attr.Value[:]), nl.NativeEndian(), stats32); err != nil { + return nil, err + } case unix.IFLA_STATS64: - stats64 = attr.Value[:] + stats64 = new(LinkStatistics64) + if err := binary.Read(bytes.NewBuffer(attr.Value[:]), nl.NativeEndian(), stats64); err != nil { + return nil, err + } case unix.IFLA_XDP: xdp, err := parseLinkXdp(attr.Value[:]) if err != nil { @@ -1408,19 +1691,40 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { if err != nil { return nil, err } - base.Protinfo = parseProtinfo(attrs) + protinfo := parseProtinfo(attrs) + base.Protinfo = &protinfo } case unix.IFLA_OPERSTATE: base.OperState = LinkOperState(uint8(attr.Value[0])) case unix.IFLA_LINK_NETNSID: base.NetNsID = int(native.Uint32(attr.Value[0:4])) + case unix.IFLA_GSO_MAX_SIZE: + base.GSOMaxSize = native.Uint32(attr.Value[0:4]) + case unix.IFLA_GSO_MAX_SEGS: + base.GSOMaxSegs = native.Uint32(attr.Value[0:4]) + case unix.IFLA_VFINFO_LIST: + data, err := nl.ParseRouteAttr(attr.Value) + if err != nil { + return nil, err + } + vfs, err := parseVfInfoList(data) + if err != nil { + return nil, err + } + base.Vfs = vfs + case unix.IFLA_NUM_TX_QUEUES: + base.NumTxQueues = int(native.Uint32(attr.Value[0:4])) + case unix.IFLA_NUM_RX_QUEUES: + base.NumRxQueues = int(native.Uint32(attr.Value[0:4])) + case unix.IFLA_GROUP: + base.Group = native.Uint32(attr.Value[0:4]) } } if stats64 != nil { - base.Statistics = parseLinkStats64(stats64) + base.Statistics = (*LinkStatistics)(stats64) } else if stats32 != nil { - base.Statistics = parseLinkStats32(stats32) + base.Statistics = (*LinkStatistics)(stats32.to64()) } // Links that don't have IFLA_INFO_KIND are hardware devices @@ -1428,10 +1732,59 @@ func LinkDeserialize(hdr *unix.NlMsghdr, m []byte) (Link, error) { link = &Device{} } *link.Attrs() = base + link.Attrs().Slave = linkSlave + + // If the tuntap attributes are not updated by netlink due to + // an older driver, use sysfs + if link != nil && linkType == "tun" { + tuntap := link.(*Tuntap) + + if tuntap.Mode == 0 { + ifname := tuntap.Attrs().Name + if flags, err := readSysPropAsInt64(ifname, "tun_flags"); err == nil { + + if flags&unix.IFF_TUN != 0 { + tuntap.Mode = unix.IFF_TUN + } else if flags&unix.IFF_TAP != 0 { + tuntap.Mode = unix.IFF_TAP + } + + tuntap.NonPersist = false + if flags&unix.IFF_PERSIST == 0 { + tuntap.NonPersist = true + } + } + + // The sysfs interface for owner/group returns -1 for root user, instead of returning 0. + // So explicitly check for negative value, before assigning the owner uid/gid. + if owner, err := readSysPropAsInt64(ifname, "owner"); err == nil && owner > 0 { + tuntap.Owner = uint32(owner) + } + + if group, err := readSysPropAsInt64(ifname, "group"); err == nil && group > 0 { + tuntap.Group = uint32(group) + } + } + } return link, nil } +func readSysPropAsInt64(ifname, prop string) (int64, error) { + fname := fmt.Sprintf("/sys/class/net/%s/%s", ifname, prop) + contents, err := ioutil.ReadFile(fname) + if err != nil { + return 0, err + } + + num, err := strconv.ParseInt(strings.TrimSpace(string(contents)), 0, 64) + if err == nil { + return num, nil + } + + return 0, err +} + // LinkList gets a list of link devices. // Equivalent to: `ip link show` func LinkList() ([]Link, error) { @@ -1447,6 +1800,8 @@ func (h *Handle) LinkList() ([]Link, error) { msg := nl.NewIfInfomsg(unix.AF_UNSPEC) req.AddData(msg) + attr := nl.NewRtAttr(unix.IFLA_EXT_MASK, nl.Uint32Attr(nl.RTEXT_FILTER_VF)) + req.AddData(attr) msgs, err := req.Execute(unix.NETLINK_ROUTE, unix.RTM_NEWLINK) if err != nil { @@ -1526,13 +1881,19 @@ func linkSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- LinkUpdate, done <-c go func() { defer close(ch) for { - msgs, err := s.Receive() + msgs, from, err := s.Receive() if err != nil { if cberr != nil { cberr(err) } return } + if from.Pid != nl.PidKernel { + if cberr != nil { + cberr(fmt.Errorf("Wrong sender portid %d, expected %d", from.Pid, nl.PidKernel)) + } + continue + } for _, m := range msgs { if m.Header.Type == unix.NLMSG_DONE { continue @@ -1639,7 +2000,7 @@ func (h *Handle) setProtinfoAttr(link Link, mode bool, attr int) error { req.AddData(msg) br := nl.NewRtAttr(unix.IFLA_PROTINFO|unix.NLA_F_NESTED, nil) - nl.NewRtAttrChild(br, attr, boolToByte(mode)) + br.AddRtAttr(attr, boolToByte(mode)) req.AddData(br) _, err := req.Execute(unix.NETLINK_ROUTE, 0) if err != nil { @@ -1675,12 +2036,43 @@ func (h *Handle) LinkSetTxQLen(link Link, qlen int) error { return err } +// LinkSetGroup sets the link group id which can be used to perform mass actions +// with iproute2 as well use it as a reference in nft filters. +// Equivalent to: `ip link set $link group $id` +func LinkSetGroup(link Link, group int) error { + return pkgHandle.LinkSetGroup(link, group) +} + +// LinkSetGroup sets the link group id which can be used to perform mass actions +// with iproute2 as well use it as a reference in nft filters. +// Equivalent to: `ip link set $link group $id` +func (h *Handle) LinkSetGroup(link Link, group int) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + b := make([]byte, 4) + native.PutUint32(b, uint32(group)) + + data := nl.NewRtAttr(unix.IFLA_GROUP, b) + req.AddData(data) + + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + func parseVlanData(link Link, data []syscall.NetlinkRouteAttr) { vlan := link.(*Vlan) for _, datum := range data { switch datum.Attr.Type { case nl.IFLA_VLAN_ID: vlan.VlanId = int(native.Uint16(datum.Value[0:2])) + case nl.IFLA_VLAN_PROTOCOL: + vlan.VlanProtocol = VlanProtocol(int(ntohs(datum.Value[0:2]))) } } } @@ -1762,7 +2154,7 @@ func parseBondData(link Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_BOND_ARP_INTERVAL: bond.ArpInterval = int(native.Uint32(data[i].Value[0:4])) case nl.IFLA_BOND_ARP_IP_TARGET: - // TODO: implement + bond.ArpIpTargets = parseBondArpIpTargets(data[i].Value) case nl.IFLA_BOND_ARP_VALIDATE: bond.ArpValidate = BondArpValidate(native.Uint32(data[i].Value[0:4])) case nl.IFLA_BOND_ARP_ALL_TARGETS: @@ -1805,12 +2197,75 @@ func parseBondData(link Link, data []syscall.NetlinkRouteAttr) { } } +func parseBondArpIpTargets(value []byte) []net.IP { + data, err := nl.ParseRouteAttr(value) + if err != nil { + return nil + } + + targets := []net.IP{} + for i := range data { + target := net.IP(data[i].Value) + if ip := target.To4(); ip != nil { + targets = append(targets, ip) + continue + } + if ip := target.To16(); ip != nil { + targets = append(targets, ip) + } + } + + return targets +} + +func addBondSlaveAttrs(bondSlave *BondSlave, linkInfo *nl.RtAttr) { + data := linkInfo.AddRtAttr(nl.IFLA_INFO_SLAVE_DATA, nil) + + data.AddRtAttr(nl.IFLA_BOND_SLAVE_STATE, nl.Uint8Attr(uint8(bondSlave.State))) + data.AddRtAttr(nl.IFLA_BOND_SLAVE_MII_STATUS, nl.Uint8Attr(uint8(bondSlave.MiiStatus))) + data.AddRtAttr(nl.IFLA_BOND_SLAVE_LINK_FAILURE_COUNT, nl.Uint32Attr(bondSlave.LinkFailureCount)) + data.AddRtAttr(nl.IFLA_BOND_SLAVE_QUEUE_ID, nl.Uint16Attr(bondSlave.QueueId)) + data.AddRtAttr(nl.IFLA_BOND_SLAVE_AD_AGGREGATOR_ID, nl.Uint16Attr(bondSlave.AggregatorId)) + data.AddRtAttr(nl.IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE, nl.Uint8Attr(bondSlave.AdActorOperPortState)) + data.AddRtAttr(nl.IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE, nl.Uint16Attr(bondSlave.AdPartnerOperPortState)) + + if mac := bondSlave.PermHardwareAddr; mac != nil { + data.AddRtAttr(nl.IFLA_BOND_SLAVE_PERM_HWADDR, []byte(mac)) + } +} + +func parseBondSlaveData(slave LinkSlave, data []syscall.NetlinkRouteAttr) { + bondSlave := slave.(*BondSlave) + for i := range data { + switch data[i].Attr.Type { + case nl.IFLA_BOND_SLAVE_STATE: + bondSlave.State = BondSlaveState(data[i].Value[0]) + case nl.IFLA_BOND_SLAVE_MII_STATUS: + bondSlave.MiiStatus = BondSlaveMiiStatus(data[i].Value[0]) + case nl.IFLA_BOND_SLAVE_LINK_FAILURE_COUNT: + bondSlave.LinkFailureCount = native.Uint32(data[i].Value[0:4]) + case nl.IFLA_BOND_SLAVE_PERM_HWADDR: + bondSlave.PermHardwareAddr = net.HardwareAddr(data[i].Value[0:6]) + case nl.IFLA_BOND_SLAVE_QUEUE_ID: + bondSlave.QueueId = native.Uint16(data[i].Value[0:2]) + case nl.IFLA_BOND_SLAVE_AD_AGGREGATOR_ID: + bondSlave.AggregatorId = native.Uint16(data[i].Value[0:2]) + case nl.IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE: + bondSlave.AdActorOperPortState = uint8(data[i].Value[0]) + case nl.IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE: + bondSlave.AdPartnerOperPortState = native.Uint16(data[i].Value[0:2]) + } + } +} + func parseIPVlanData(link Link, data []syscall.NetlinkRouteAttr) { ipv := link.(*IPVlan) for _, datum := range data { - if datum.Attr.Type == nl.IFLA_IPVLAN_MODE { + switch datum.Attr.Type { + case nl.IFLA_IPVLAN_MODE: ipv.Mode = IPVlanMode(native.Uint32(datum.Value[0:4])) - return + case nl.IFLA_IPVLAN_FLAG: + ipv.Flag = IPVlanFlag(native.Uint32(datum.Value[0:4])) } } } @@ -1873,11 +2328,11 @@ func linkFlags(rawFlags uint32) net.Flags { } func addGretapAttrs(gretap *Gretap, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) if gretap.FlowBased { // In flow based mode, no other attributes need to be configured - nl.NewRtAttrChild(data, nl.IFLA_GRE_COLLECT_METADATA, boolAttr(gretap.FlowBased)) + data.AddRtAttr(nl.IFLA_GRE_COLLECT_METADATA, boolAttr(gretap.FlowBased)) return } @@ -1885,40 +2340,40 @@ func addGretapAttrs(gretap *Gretap, linkInfo *nl.RtAttr) { if ip.To4() != nil { ip = ip.To4() } - nl.NewRtAttrChild(data, nl.IFLA_GRE_LOCAL, []byte(ip)) + data.AddRtAttr(nl.IFLA_GRE_LOCAL, []byte(ip)) } if ip := gretap.Remote; ip != nil { if ip.To4() != nil { ip = ip.To4() } - nl.NewRtAttrChild(data, nl.IFLA_GRE_REMOTE, []byte(ip)) + data.AddRtAttr(nl.IFLA_GRE_REMOTE, []byte(ip)) } if gretap.IKey != 0 { - nl.NewRtAttrChild(data, nl.IFLA_GRE_IKEY, htonl(gretap.IKey)) + data.AddRtAttr(nl.IFLA_GRE_IKEY, htonl(gretap.IKey)) gretap.IFlags |= uint16(nl.GRE_KEY) } if gretap.OKey != 0 { - nl.NewRtAttrChild(data, nl.IFLA_GRE_OKEY, htonl(gretap.OKey)) + data.AddRtAttr(nl.IFLA_GRE_OKEY, htonl(gretap.OKey)) gretap.OFlags |= uint16(nl.GRE_KEY) } - nl.NewRtAttrChild(data, nl.IFLA_GRE_IFLAGS, htons(gretap.IFlags)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_OFLAGS, htons(gretap.OFlags)) + data.AddRtAttr(nl.IFLA_GRE_IFLAGS, htons(gretap.IFlags)) + data.AddRtAttr(nl.IFLA_GRE_OFLAGS, htons(gretap.OFlags)) if gretap.Link != 0 { - nl.NewRtAttrChild(data, nl.IFLA_GRE_LINK, nl.Uint32Attr(gretap.Link)) + data.AddRtAttr(nl.IFLA_GRE_LINK, nl.Uint32Attr(gretap.Link)) } - nl.NewRtAttrChild(data, nl.IFLA_GRE_PMTUDISC, nl.Uint8Attr(gretap.PMtuDisc)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_TTL, nl.Uint8Attr(gretap.Ttl)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_TOS, nl.Uint8Attr(gretap.Tos)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_ENCAP_TYPE, nl.Uint16Attr(gretap.EncapType)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_ENCAP_FLAGS, nl.Uint16Attr(gretap.EncapFlags)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_ENCAP_SPORT, htons(gretap.EncapSport)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_ENCAP_DPORT, htons(gretap.EncapDport)) + data.AddRtAttr(nl.IFLA_GRE_PMTUDISC, nl.Uint8Attr(gretap.PMtuDisc)) + data.AddRtAttr(nl.IFLA_GRE_TTL, nl.Uint8Attr(gretap.Ttl)) + data.AddRtAttr(nl.IFLA_GRE_TOS, nl.Uint8Attr(gretap.Tos)) + data.AddRtAttr(nl.IFLA_GRE_ENCAP_TYPE, nl.Uint16Attr(gretap.EncapType)) + data.AddRtAttr(nl.IFLA_GRE_ENCAP_FLAGS, nl.Uint16Attr(gretap.EncapFlags)) + data.AddRtAttr(nl.IFLA_GRE_ENCAP_SPORT, htons(gretap.EncapSport)) + data.AddRtAttr(nl.IFLA_GRE_ENCAP_DPORT, htons(gretap.EncapDport)) } func parseGretapData(link Link, data []syscall.NetlinkRouteAttr) { @@ -1930,9 +2385,9 @@ func parseGretapData(link Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_GRE_IKEY: gre.OKey = ntohl(datum.Value[0:4]) case nl.IFLA_GRE_LOCAL: - gre.Local = net.IP(datum.Value[0:16]) + gre.Local = net.IP(datum.Value) case nl.IFLA_GRE_REMOTE: - gre.Remote = net.IP(datum.Value[0:16]) + gre.Remote = net.IP(datum.Value) case nl.IFLA_GRE_ENCAP_SPORT: gre.EncapSport = ntohs(datum.Value[0:2]) case nl.IFLA_GRE_ENCAP_DPORT: @@ -1941,7 +2396,6 @@ func parseGretapData(link Link, data []syscall.NetlinkRouteAttr) { gre.IFlags = ntohs(datum.Value[0:2]) case nl.IFLA_GRE_OFLAGS: gre.OFlags = ntohs(datum.Value[0:2]) - case nl.IFLA_GRE_TTL: gre.Ttl = uint8(datum.Value[0]) case nl.IFLA_GRE_TOS: @@ -1953,73 +2407,70 @@ func parseGretapData(link Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_GRE_ENCAP_FLAGS: gre.EncapFlags = native.Uint16(datum.Value[0:2]) case nl.IFLA_GRE_COLLECT_METADATA: - if len(datum.Value) > 0 { - gre.FlowBased = int8(datum.Value[0]) != 0 - } + gre.FlowBased = true } } } func addGretunAttrs(gre *Gretun, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) if ip := gre.Local; ip != nil { if ip.To4() != nil { ip = ip.To4() } - nl.NewRtAttrChild(data, nl.IFLA_GRE_LOCAL, []byte(ip)) + data.AddRtAttr(nl.IFLA_GRE_LOCAL, []byte(ip)) } if ip := gre.Remote; ip != nil { if ip.To4() != nil { ip = ip.To4() } - nl.NewRtAttrChild(data, nl.IFLA_GRE_REMOTE, []byte(ip)) + data.AddRtAttr(nl.IFLA_GRE_REMOTE, []byte(ip)) } if gre.IKey != 0 { - nl.NewRtAttrChild(data, nl.IFLA_GRE_IKEY, htonl(gre.IKey)) + data.AddRtAttr(nl.IFLA_GRE_IKEY, htonl(gre.IKey)) gre.IFlags |= uint16(nl.GRE_KEY) } if gre.OKey != 0 { - nl.NewRtAttrChild(data, nl.IFLA_GRE_OKEY, htonl(gre.OKey)) + data.AddRtAttr(nl.IFLA_GRE_OKEY, htonl(gre.OKey)) gre.OFlags |= uint16(nl.GRE_KEY) } - nl.NewRtAttrChild(data, nl.IFLA_GRE_IFLAGS, htons(gre.IFlags)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_OFLAGS, htons(gre.OFlags)) + data.AddRtAttr(nl.IFLA_GRE_IFLAGS, htons(gre.IFlags)) + data.AddRtAttr(nl.IFLA_GRE_OFLAGS, htons(gre.OFlags)) if gre.Link != 0 { - nl.NewRtAttrChild(data, nl.IFLA_GRE_LINK, nl.Uint32Attr(gre.Link)) + data.AddRtAttr(nl.IFLA_GRE_LINK, nl.Uint32Attr(gre.Link)) } - nl.NewRtAttrChild(data, nl.IFLA_GRE_PMTUDISC, nl.Uint8Attr(gre.PMtuDisc)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_TTL, nl.Uint8Attr(gre.Ttl)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_TOS, nl.Uint8Attr(gre.Tos)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_ENCAP_TYPE, nl.Uint16Attr(gre.EncapType)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_ENCAP_FLAGS, nl.Uint16Attr(gre.EncapFlags)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_ENCAP_SPORT, htons(gre.EncapSport)) - nl.NewRtAttrChild(data, nl.IFLA_GRE_ENCAP_DPORT, htons(gre.EncapDport)) + data.AddRtAttr(nl.IFLA_GRE_PMTUDISC, nl.Uint8Attr(gre.PMtuDisc)) + data.AddRtAttr(nl.IFLA_GRE_TTL, nl.Uint8Attr(gre.Ttl)) + data.AddRtAttr(nl.IFLA_GRE_TOS, nl.Uint8Attr(gre.Tos)) + data.AddRtAttr(nl.IFLA_GRE_ENCAP_TYPE, nl.Uint16Attr(gre.EncapType)) + data.AddRtAttr(nl.IFLA_GRE_ENCAP_FLAGS, nl.Uint16Attr(gre.EncapFlags)) + data.AddRtAttr(nl.IFLA_GRE_ENCAP_SPORT, htons(gre.EncapSport)) + data.AddRtAttr(nl.IFLA_GRE_ENCAP_DPORT, htons(gre.EncapDport)) } func parseGretunData(link Link, data []syscall.NetlinkRouteAttr) { gre := link.(*Gretun) for _, datum := range data { switch datum.Attr.Type { - case nl.IFLA_GRE_OKEY: - gre.IKey = ntohl(datum.Value[0:4]) case nl.IFLA_GRE_IKEY: + gre.IKey = ntohl(datum.Value[0:4]) + case nl.IFLA_GRE_OKEY: gre.OKey = ntohl(datum.Value[0:4]) case nl.IFLA_GRE_LOCAL: - gre.Local = net.IP(datum.Value[0:16]) + gre.Local = net.IP(datum.Value) case nl.IFLA_GRE_REMOTE: - gre.Remote = net.IP(datum.Value[0:16]) + gre.Remote = net.IP(datum.Value) case nl.IFLA_GRE_IFLAGS: gre.IFlags = ntohs(datum.Value[0:2]) case nl.IFLA_GRE_OFLAGS: gre.OFlags = ntohs(datum.Value[0:2]) - case nl.IFLA_GRE_TTL: gre.Ttl = uint8(datum.Value[0]) case nl.IFLA_GRE_TOS: @@ -2038,23 +2489,15 @@ func parseGretunData(link Link, data []syscall.NetlinkRouteAttr) { } } -func parseLinkStats32(data []byte) *LinkStatistics { - return (*LinkStatistics)((*LinkStatistics32)(unsafe.Pointer(&data[0:SizeofLinkStats32][0])).to64()) -} - -func parseLinkStats64(data []byte) *LinkStatistics { - return (*LinkStatistics)((*LinkStatistics64)(unsafe.Pointer(&data[0:SizeofLinkStats64][0]))) -} - func addXdpAttrs(xdp *LinkXdp, req *nl.NetlinkRequest) { attrs := nl.NewRtAttr(unix.IFLA_XDP|unix.NLA_F_NESTED, nil) b := make([]byte, 4) native.PutUint32(b, uint32(xdp.Fd)) - nl.NewRtAttrChild(attrs, nl.IFLA_XDP_FD, b) + attrs.AddRtAttr(nl.IFLA_XDP_FD, b) if xdp.Flags != 0 { b := make([]byte, 4) native.PutUint32(b, xdp.Flags) - nl.NewRtAttrChild(attrs, nl.IFLA_XDP_FLAGS, b) + attrs.AddRtAttr(nl.IFLA_XDP_FLAGS, b) } req.AddData(attrs) } @@ -2083,32 +2526,32 @@ func parseLinkXdp(data []byte) (*LinkXdp, error) { func addIptunAttrs(iptun *Iptun, linkInfo *nl.RtAttr) { if iptun.FlowBased { // In flow based mode, no other attributes need to be configured - nl.NewRtAttrChild(linkInfo, nl.IFLA_IPTUN_COLLECT_METADATA, boolAttr(iptun.FlowBased)) + linkInfo.AddRtAttr(nl.IFLA_IPTUN_COLLECT_METADATA, boolAttr(iptun.FlowBased)) return } - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) ip := iptun.Local.To4() if ip != nil { - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_LOCAL, []byte(ip)) + data.AddRtAttr(nl.IFLA_IPTUN_LOCAL, []byte(ip)) } ip = iptun.Remote.To4() if ip != nil { - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_REMOTE, []byte(ip)) + data.AddRtAttr(nl.IFLA_IPTUN_REMOTE, []byte(ip)) } if iptun.Link != 0 { - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_LINK, nl.Uint32Attr(iptun.Link)) + data.AddRtAttr(nl.IFLA_IPTUN_LINK, nl.Uint32Attr(iptun.Link)) } - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_PMTUDISC, nl.Uint8Attr(iptun.PMtuDisc)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_TTL, nl.Uint8Attr(iptun.Ttl)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_TOS, nl.Uint8Attr(iptun.Tos)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_ENCAP_TYPE, nl.Uint16Attr(iptun.EncapType)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_ENCAP_FLAGS, nl.Uint16Attr(iptun.EncapFlags)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_ENCAP_SPORT, htons(iptun.EncapSport)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_ENCAP_DPORT, htons(iptun.EncapDport)) + data.AddRtAttr(nl.IFLA_IPTUN_PMTUDISC, nl.Uint8Attr(iptun.PMtuDisc)) + data.AddRtAttr(nl.IFLA_IPTUN_TTL, nl.Uint8Attr(iptun.Ttl)) + data.AddRtAttr(nl.IFLA_IPTUN_TOS, nl.Uint8Attr(iptun.Tos)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_TYPE, nl.Uint16Attr(iptun.EncapType)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_FLAGS, nl.Uint16Attr(iptun.EncapFlags)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_SPORT, htons(iptun.EncapSport)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_DPORT, htons(iptun.EncapDport)) } func parseIptunData(link Link, data []syscall.NetlinkRouteAttr) { @@ -2139,34 +2582,83 @@ func parseIptunData(link Link, data []syscall.NetlinkRouteAttr) { } } +func addIp6tnlAttrs(ip6tnl *Ip6tnl, linkInfo *nl.RtAttr) { + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + + if ip6tnl.Link != 0 { + data.AddRtAttr(nl.IFLA_IPTUN_LINK, nl.Uint32Attr(ip6tnl.Link)) + } + + ip := ip6tnl.Local.To16() + if ip != nil { + data.AddRtAttr(nl.IFLA_IPTUN_LOCAL, []byte(ip)) + } + + ip = ip6tnl.Remote.To16() + if ip != nil { + data.AddRtAttr(nl.IFLA_IPTUN_REMOTE, []byte(ip)) + } + + data.AddRtAttr(nl.IFLA_IPTUN_TTL, nl.Uint8Attr(ip6tnl.Ttl)) + data.AddRtAttr(nl.IFLA_IPTUN_TOS, nl.Uint8Attr(ip6tnl.Tos)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_LIMIT, nl.Uint8Attr(ip6tnl.EncapLimit)) + data.AddRtAttr(nl.IFLA_IPTUN_FLAGS, nl.Uint32Attr(ip6tnl.Flags)) + data.AddRtAttr(nl.IFLA_IPTUN_PROTO, nl.Uint8Attr(ip6tnl.Proto)) + data.AddRtAttr(nl.IFLA_IPTUN_FLOWINFO, nl.Uint32Attr(ip6tnl.FlowInfo)) +} + +func parseIp6tnlData(link Link, data []syscall.NetlinkRouteAttr) { + ip6tnl := link.(*Ip6tnl) + for _, datum := range data { + switch datum.Attr.Type { + case nl.IFLA_IPTUN_LOCAL: + ip6tnl.Local = net.IP(datum.Value[:16]) + case nl.IFLA_IPTUN_REMOTE: + ip6tnl.Remote = net.IP(datum.Value[:16]) + case nl.IFLA_IPTUN_TTL: + ip6tnl.Ttl = uint8(datum.Value[0]) + case nl.IFLA_IPTUN_TOS: + ip6tnl.Tos = uint8(datum.Value[0]) + case nl.IFLA_IPTUN_ENCAP_LIMIT: + ip6tnl.EncapLimit = uint8(datum.Value[0]) + case nl.IFLA_IPTUN_FLAGS: + ip6tnl.Flags = native.Uint32(datum.Value[:4]) + case nl.IFLA_IPTUN_PROTO: + ip6tnl.Proto = uint8(datum.Value[0]) + case nl.IFLA_IPTUN_FLOWINFO: + ip6tnl.FlowInfo = native.Uint32(datum.Value[:4]) + } + } +} + func addSittunAttrs(sittun *Sittun, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) if sittun.Link != 0 { - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_LINK, nl.Uint32Attr(sittun.Link)) + data.AddRtAttr(nl.IFLA_IPTUN_LINK, nl.Uint32Attr(sittun.Link)) } ip := sittun.Local.To4() if ip != nil { - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_LOCAL, []byte(ip)) + data.AddRtAttr(nl.IFLA_IPTUN_LOCAL, []byte(ip)) } ip = sittun.Remote.To4() if ip != nil { - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_REMOTE, []byte(ip)) + data.AddRtAttr(nl.IFLA_IPTUN_REMOTE, []byte(ip)) } if sittun.Ttl > 0 { // Would otherwise fail on 3.10 kernel - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_TTL, nl.Uint8Attr(sittun.Ttl)) + data.AddRtAttr(nl.IFLA_IPTUN_TTL, nl.Uint8Attr(sittun.Ttl)) } - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_TOS, nl.Uint8Attr(sittun.Tos)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_PMTUDISC, nl.Uint8Attr(sittun.PMtuDisc)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_ENCAP_TYPE, nl.Uint16Attr(sittun.EncapType)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_ENCAP_FLAGS, nl.Uint16Attr(sittun.EncapFlags)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_ENCAP_SPORT, htons(sittun.EncapSport)) - nl.NewRtAttrChild(data, nl.IFLA_IPTUN_ENCAP_DPORT, htons(sittun.EncapDport)) + data.AddRtAttr(nl.IFLA_IPTUN_TOS, nl.Uint8Attr(sittun.Tos)) + data.AddRtAttr(nl.IFLA_IPTUN_PMTUDISC, nl.Uint8Attr(sittun.PMtuDisc)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_TYPE, nl.Uint16Attr(sittun.EncapType)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_FLAGS, nl.Uint16Attr(sittun.EncapFlags)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_SPORT, htons(sittun.EncapSport)) + data.AddRtAttr(nl.IFLA_IPTUN_ENCAP_DPORT, htons(sittun.EncapDport)) } func parseSittunData(link Link, data []syscall.NetlinkRouteAttr) { @@ -2196,24 +2688,39 @@ func parseSittunData(link Link, data []syscall.NetlinkRouteAttr) { } func addVtiAttrs(vti *Vti, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + + family := FAMILY_V4 + if vti.Local.To4() == nil { + family = FAMILY_V6 + } - ip := vti.Local.To4() + var ip net.IP + + if family == FAMILY_V4 { + ip = vti.Local.To4() + } else { + ip = vti.Local + } if ip != nil { - nl.NewRtAttrChild(data, nl.IFLA_VTI_LOCAL, []byte(ip)) + data.AddRtAttr(nl.IFLA_VTI_LOCAL, []byte(ip)) } - ip = vti.Remote.To4() + if family == FAMILY_V4 { + ip = vti.Remote.To4() + } else { + ip = vti.Remote + } if ip != nil { - nl.NewRtAttrChild(data, nl.IFLA_VTI_REMOTE, []byte(ip)) + data.AddRtAttr(nl.IFLA_VTI_REMOTE, []byte(ip)) } if vti.Link != 0 { - nl.NewRtAttrChild(data, nl.IFLA_VTI_LINK, nl.Uint32Attr(vti.Link)) + data.AddRtAttr(nl.IFLA_VTI_LINK, nl.Uint32Attr(vti.Link)) } - nl.NewRtAttrChild(data, nl.IFLA_VTI_IKEY, htonl(vti.IKey)) - nl.NewRtAttrChild(data, nl.IFLA_VTI_OKEY, htonl(vti.OKey)) + data.AddRtAttr(nl.IFLA_VTI_IKEY, htonl(vti.IKey)) + data.AddRtAttr(nl.IFLA_VTI_OKEY, htonl(vti.OKey)) } func parseVtiData(link Link, data []syscall.NetlinkRouteAttr) { @@ -2221,9 +2728,9 @@ func parseVtiData(link Link, data []syscall.NetlinkRouteAttr) { for _, datum := range data { switch datum.Attr.Type { case nl.IFLA_VTI_LOCAL: - vti.Local = net.IP(datum.Value[0:4]) + vti.Local = net.IP(datum.Value) case nl.IFLA_VTI_REMOTE: - vti.Remote = net.IP(datum.Value[0:4]) + vti.Remote = net.IP(datum.Value) case nl.IFLA_VTI_IKEY: vti.IKey = ntohl(datum.Value[0:4]) case nl.IFLA_VTI_OKEY: @@ -2233,10 +2740,10 @@ func parseVtiData(link Link, data []syscall.NetlinkRouteAttr) { } func addVrfAttrs(vrf *Vrf, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) b := make([]byte, 4) native.PutUint32(b, uint32(vrf.Table)) - nl.NewRtAttrChild(data, nl.IFLA_VRF_TABLE, b) + data.AddRtAttr(nl.IFLA_VRF_TABLE, b) } func parseVrfData(link Link, data []syscall.NetlinkRouteAttr) { @@ -2250,12 +2757,15 @@ func parseVrfData(link Link, data []syscall.NetlinkRouteAttr) { } func addBridgeAttrs(bridge *Bridge, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) if bridge.MulticastSnooping != nil { - nl.NewRtAttrChild(data, nl.IFLA_BR_MCAST_SNOOPING, boolToByte(*bridge.MulticastSnooping)) + data.AddRtAttr(nl.IFLA_BR_MCAST_SNOOPING, boolToByte(*bridge.MulticastSnooping)) } if bridge.HelloTime != nil { - nl.NewRtAttrChild(data, nl.IFLA_BR_HELLO_TIME, nl.Uint32Attr(*bridge.HelloTime)) + data.AddRtAttr(nl.IFLA_BR_HELLO_TIME, nl.Uint32Attr(*bridge.HelloTime)) + } + if bridge.VlanFiltering != nil { + data.AddRtAttr(nl.IFLA_BR_VLAN_FILTERING, boolToByte(*bridge.VlanFiltering)) } } @@ -2269,17 +2779,20 @@ func parseBridgeData(bridge Link, data []syscall.NetlinkRouteAttr) { case nl.IFLA_BR_MCAST_SNOOPING: mcastSnooping := datum.Value[0] == 1 br.MulticastSnooping = &mcastSnooping + case nl.IFLA_BR_VLAN_FILTERING: + vlanFiltering := datum.Value[0] == 1 + br.VlanFiltering = &vlanFiltering } } } func addGTPAttrs(gtp *GTP, linkInfo *nl.RtAttr) { - data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil) - nl.NewRtAttrChild(data, nl.IFLA_GTP_FD0, nl.Uint32Attr(uint32(gtp.FD0))) - nl.NewRtAttrChild(data, nl.IFLA_GTP_FD1, nl.Uint32Attr(uint32(gtp.FD1))) - nl.NewRtAttrChild(data, nl.IFLA_GTP_PDP_HASHSIZE, nl.Uint32Attr(131072)) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + data.AddRtAttr(nl.IFLA_GTP_FD0, nl.Uint32Attr(uint32(gtp.FD0))) + data.AddRtAttr(nl.IFLA_GTP_FD1, nl.Uint32Attr(uint32(gtp.FD1))) + data.AddRtAttr(nl.IFLA_GTP_PDP_HASHSIZE, nl.Uint32Attr(131072)) if gtp.Role != nl.GTP_ROLE_GGSN { - nl.NewRtAttrChild(data, nl.IFLA_GTP_ROLE, nl.Uint32Attr(uint32(gtp.Role))) + data.AddRtAttr(nl.IFLA_GTP_ROLE, nl.Uint32Attr(uint32(gtp.Role))) } } @@ -2299,6 +2812,70 @@ func parseGTPData(link Link, data []syscall.NetlinkRouteAttr) { } } +func parseVfInfoList(data []syscall.NetlinkRouteAttr) ([]VfInfo, error) { + var vfs []VfInfo + + for i, element := range data { + if element.Attr.Type != nl.IFLA_VF_INFO { + return nil, fmt.Errorf("Incorrect element type in vf info list: %d", element.Attr.Type) + } + vfAttrs, err := nl.ParseRouteAttr(element.Value) + if err != nil { + return nil, err + } + vfs = append(vfs, parseVfInfo(vfAttrs, i)) + } + return vfs, nil +} + +func parseVfInfo(data []syscall.NetlinkRouteAttr, id int) VfInfo { + vf := VfInfo{ID: id} + for _, element := range data { + switch element.Attr.Type { + case nl.IFLA_VF_MAC: + mac := nl.DeserializeVfMac(element.Value[:]) + vf.Mac = mac.Mac[:6] + case nl.IFLA_VF_VLAN: + vl := nl.DeserializeVfVlan(element.Value[:]) + vf.Vlan = int(vl.Vlan) + vf.Qos = int(vl.Qos) + case nl.IFLA_VF_TX_RATE: + txr := nl.DeserializeVfTxRate(element.Value[:]) + vf.TxRate = int(txr.Rate) + case nl.IFLA_VF_SPOOFCHK: + sp := nl.DeserializeVfSpoofchk(element.Value[:]) + vf.Spoofchk = sp.Setting != 0 + case nl.IFLA_VF_LINK_STATE: + ls := nl.DeserializeVfLinkState(element.Value[:]) + vf.LinkState = ls.LinkState + case nl.IFLA_VF_RATE: + vfr := nl.DeserializeVfRate(element.Value[:]) + vf.MaxTxRate = vfr.MaxTxRate + vf.MinTxRate = vfr.MinTxRate + } + } + return vf +} + +func addXfrmiAttrs(xfrmi *Xfrmi, linkInfo *nl.RtAttr) { + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + data.AddRtAttr(nl.IFLA_XFRM_LINK, nl.Uint32Attr(uint32(xfrmi.ParentIndex))) + data.AddRtAttr(nl.IFLA_XFRM_IF_ID, nl.Uint32Attr(xfrmi.Ifid)) + +} + +func parseXfrmiData(link Link, data []syscall.NetlinkRouteAttr) { + xfrmi := link.(*Xfrmi) + for _, datum := range data { + switch datum.Attr.Type { + case nl.IFLA_XFRM_LINK: + xfrmi.ParentIndex = int(native.Uint32(datum.Value)) + case nl.IFLA_XFRM_IF_ID: + xfrmi.Ifid = native.Uint32(datum.Value) + } + } +} + // LinkSetBondSlave add slave to bond link via ioctl interface. func LinkSetBondSlave(link Link, master *Bond) error { fd, err := getSocketUDP() @@ -2316,6 +2893,52 @@ func LinkSetBondSlave(link Link, master *Bond) error { return nil } +// LinkSetBondSlaveQueueId modify bond slave queue-id. +func (h *Handle) LinkSetBondSlaveQueueId(link Link, queueId uint16) error { + base := link.Attrs() + h.ensureIndex(base) + req := h.newNetlinkRequest(unix.RTM_SETLINK, unix.NLM_F_ACK) + + msg := nl.NewIfInfomsg(unix.AF_UNSPEC) + msg.Index = int32(base.Index) + req.AddData(msg) + + linkInfo := nl.NewRtAttr(unix.IFLA_LINKINFO, nil) + data := linkInfo.AddRtAttr(nl.IFLA_INFO_SLAVE_DATA, nil) + data.AddRtAttr(nl.IFLA_BOND_SLAVE_QUEUE_ID, nl.Uint16Attr(queueId)) + + req.AddData(linkInfo) + _, err := req.Execute(unix.NETLINK_ROUTE, 0) + return err +} + +// LinkSetBondSlaveQueueId modify bond slave queue-id. +func LinkSetBondSlaveQueueId(link Link, queueId uint16) error { + return pkgHandle.LinkSetBondSlaveQueueId(link, queueId) +} + +func vethStatsSerialize(stats ethtoolStats) ([]byte, error) { + statsSize := int(unsafe.Sizeof(stats)) + int(stats.nStats)*int(unsafe.Sizeof(uint64(0))) + b := make([]byte, 0, statsSize) + buf := bytes.NewBuffer(b) + err := binary.Write(buf, nl.NativeEndian(), stats) + return buf.Bytes()[:statsSize], err +} + +type vethEthtoolStats struct { + Cmd uint32 + NStats uint32 + Peer uint64 + // Newer kernels have XDP stats in here, but we only care + // to extract the peer ifindex here. +} + +func vethStatsDeserialize(b []byte) (vethEthtoolStats, error) { + var stats = vethEthtoolStats{} + err := binary.Read(bytes.NewReader(b), nl.NativeEndian(), &stats) + return stats, err +} + // VethPeerIndex get veth peer index. func VethPeerIndex(link *Veth) (int, error) { fd, err := getSocketUDP() @@ -2330,25 +2953,66 @@ func VethPeerIndex(link *Veth) (int, error) { return -1, fmt.Errorf("SIOCETHTOOL request for %q failed, errno=%v", link.Attrs().Name, errno) } - gstrings := ðtoolGstrings{ - cmd: ETHTOOL_GSTRINGS, - stringSet: ETH_SS_STATS, - length: sSet.data[0], + stats := ethtoolStats{ + cmd: ETHTOOL_GSTATS, + nStats: sSet.data[0], + } + + buffer, err := vethStatsSerialize(stats) + if err != nil { + return -1, err } - ifreq.Data = uintptr(unsafe.Pointer(gstrings)) + + ifreq.Data = uintptr(unsafe.Pointer(&buffer[0])) _, _, errno = syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), SIOCETHTOOL, uintptr(unsafe.Pointer(ifreq))) if errno != 0 { return -1, fmt.Errorf("SIOCETHTOOL request for %q failed, errno=%v", link.Attrs().Name, errno) } - stats := ðtoolStats{ - cmd: ETHTOOL_GSTATS, - nStats: gstrings.length, + vstats, err := vethStatsDeserialize(buffer) + if err != nil { + return -1, err } - ifreq.Data = uintptr(unsafe.Pointer(stats)) - _, _, errno = syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), SIOCETHTOOL, uintptr(unsafe.Pointer(ifreq))) - if errno != 0 { - return -1, fmt.Errorf("SIOCETHTOOL request for %q failed, errno=%v", link.Attrs().Name, errno) + + return int(vstats.Peer), nil +} + +func parseTuntapData(link Link, data []syscall.NetlinkRouteAttr) { + tuntap := link.(*Tuntap) + for _, datum := range data { + switch datum.Attr.Type { + case nl.IFLA_TUN_OWNER: + tuntap.Owner = native.Uint32(datum.Value) + case nl.IFLA_TUN_GROUP: + tuntap.Group = native.Uint32(datum.Value) + case nl.IFLA_TUN_TYPE: + tuntap.Mode = TuntapMode(uint8(datum.Value[0])) + case nl.IFLA_TUN_PERSIST: + tuntap.NonPersist = false + if uint8(datum.Value[0]) == 0 { + tuntap.NonPersist = true + } + } + } +} + +func parseIPoIBData(link Link, data []syscall.NetlinkRouteAttr) { + ipoib := link.(*IPoIB) + for _, datum := range data { + switch datum.Attr.Type { + case nl.IFLA_IPOIB_PKEY: + ipoib.Pkey = uint16(native.Uint16(datum.Value)) + case nl.IFLA_IPOIB_MODE: + ipoib.Mode = IPoIBMode(native.Uint16(datum.Value)) + case nl.IFLA_IPOIB_UMCAST: + ipoib.Umcast = uint16(native.Uint16(datum.Value)) + } } - return int(stats.data[0]), nil +} + +func addIPoIBAttrs(ipoib *IPoIB, linkInfo *nl.RtAttr) { + data := linkInfo.AddRtAttr(nl.IFLA_INFO_DATA, nil) + data.AddRtAttr(nl.IFLA_IPOIB_PKEY, nl.Uint16Attr(uint16(ipoib.Pkey))) + data.AddRtAttr(nl.IFLA_IPOIB_MODE, nl.Uint16Attr(uint16(ipoib.Mode))) + data.AddRtAttr(nl.IFLA_IPOIB_UMCAST, nl.Uint16Attr(uint16(ipoib.Umcast))) } |