func (h *Handle) xfrmStateAddOrUpdate(state *XfrmState, nlProto int) error {
// A state with spi 0 can't be deleted so don't allow it to be set
if state.Spi == 0 {
return fmt.Errorf("Spi must be set when adding xfrm state.")
}
req := h.newNetlinkRequest(nlProto, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
msg := &nl.XfrmUsersaInfo{}
msg.Family = uint16(nl.GetIPFamily(state.Dst))
msg.Id.Daddr.FromIP(state.Dst)
msg.Saddr.FromIP(state.Src)
msg.Id.Proto = uint8(state.Proto)
msg.Mode = uint8(state.Mode)
msg.Id.Spi = nl.Swap32(uint32(state.Spi))
msg.Reqid = uint32(state.Reqid)
msg.ReplayWindow = uint8(state.ReplayWindow)
limitsToLft(state.Limits, &msg.Lft)
req.AddData(msg)
if state.Auth != nil {
out := nl.NewRtAttr(nl.XFRMA_ALG_AUTH_TRUNC, writeStateAlgoAuth(state.Auth))
req.AddData(out)
}
if state.Crypt != nil {
out := nl.NewRtAttr(nl.XFRMA_ALG_CRYPT, writeStateAlgo(state.Crypt))
req.AddData(out)
}
if state.Aead != nil {
out := nl.NewRtAttr(nl.XFRMA_ALG_AEAD, writeStateAlgoAead(state.Aead))
req.AddData(out)
}
if state.Encap != nil {
encapData := make([]byte, nl.SizeofXfrmEncapTmpl)
encap := nl.DeserializeXfrmEncapTmpl(encapData)
encap.EncapType = uint16(state.Encap.Type)
encap.EncapSport = nl.Swap16(uint16(state.Encap.SrcPort))
encap.EncapDport = nl.Swap16(uint16(state.Encap.DstPort))
encap.EncapOa.FromIP(state.Encap.OriginalAddress)
out := nl.NewRtAttr(nl.XFRMA_ENCAP, encapData)
req.AddData(out)
}
if state.Mark != nil {
out := nl.NewRtAttr(nl.XFRMA_MARK, writeMark(state.Mark))
req.AddData(out)
}
_, err := req.Execute(syscall.NETLINK_XFRM, 0)
return err
}
func parseXfrmPolicy(m []byte, family int) (*XfrmPolicy, error) {
msg := nl.DeserializeXfrmUserpolicyInfo(m)
// This is mainly for the policy dump
if family != FAMILY_ALL && family != int(msg.Sel.Family) {
return nil, familyError
}
var policy XfrmPolicy
policy.Dst = msg.Sel.Daddr.ToIPNet(msg.Sel.PrefixlenD)
policy.Src = msg.Sel.Saddr.ToIPNet(msg.Sel.PrefixlenS)
policy.Proto = Proto(msg.Sel.Proto)
policy.DstPort = int(nl.Swap16(msg.Sel.Dport))
policy.SrcPort = int(nl.Swap16(msg.Sel.Sport))
policy.Priority = int(msg.Priority)
policy.Index = int(msg.Index)
policy.Dir = Dir(msg.Dir)
attrs, err := nl.ParseRouteAttr(m[msg.Len():])
if err != nil {
return nil, err
}
for _, attr := range attrs {
switch attr.Attr.Type {
case nl.XFRMA_TMPL:
max := len(attr.Value)
for i := 0; i < max; i += nl.SizeofXfrmUserTmpl {
var resTmpl XfrmPolicyTmpl
tmpl := nl.DeserializeXfrmUserTmpl(attr.Value[i : i+nl.SizeofXfrmUserTmpl])
resTmpl.Dst = tmpl.XfrmId.Daddr.ToIP()
resTmpl.Src = tmpl.Saddr.ToIP()
resTmpl.Proto = Proto(tmpl.XfrmId.Proto)
resTmpl.Mode = Mode(tmpl.Mode)
resTmpl.Spi = int(nl.Swap32(tmpl.XfrmId.Spi))
resTmpl.Reqid = int(tmpl.Reqid)
policy.Tmpls = append(policy.Tmpls, resTmpl)
}
case nl.XFRMA_MARK:
mark := nl.DeserializeXfrmMark(attr.Value[:])
policy.Mark = new(XfrmMark)
policy.Mark.Value = mark.Value
policy.Mark.Mask = mark.Mask
}
}
return &policy, nil
}
func selFromPolicy(sel *nl.XfrmSelector, policy *XfrmPolicy) {
sel.Family = uint16(nl.FAMILY_V4)
if policy.Dst != nil {
sel.Family = uint16(nl.GetIPFamily(policy.Dst.IP))
sel.Daddr.FromIP(policy.Dst.IP)
prefixlenD, _ := policy.Dst.Mask.Size()
sel.PrefixlenD = uint8(prefixlenD)
}
if policy.Src != nil {
sel.Saddr.FromIP(policy.Src.IP)
prefixlenS, _ := policy.Src.Mask.Size()
sel.PrefixlenS = uint8(prefixlenS)
}
sel.Proto = uint8(policy.Proto)
sel.Dport = nl.Swap16(uint16(policy.DstPort))
sel.Sport = nl.Swap16(uint16(policy.SrcPort))
if sel.Dport != 0 {
sel.DportMask = ^uint16(0)
}
if sel.Sport != 0 {
sel.SportMask = ^uint16(0)
}
}
// FilterDel will delete a filter from the system.
// Equivalent to: `tc filter del $filter`
func FilterDel(filter Filter) error {
req := nl.NewNetlinkRequest(syscall.RTM_DELTFILTER, syscall.NLM_F_ACK)
base := filter.Attrs()
msg := &nl.TcMsg{
Family: nl.FAMILY_ALL,
Ifindex: int32(base.LinkIndex),
Handle: base.Handle,
Parent: base.Parent,
Info: MakeHandle(base.Priority, nl.Swap16(base.Protocol)),
}
req.AddData(msg)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
func (f *Factory) CreateVxlan(name string, vni int) error {
vxlan := &netlink.Vxlan{
LinkAttrs: netlink.LinkAttrs{
Name: name,
},
VxlanId: vni,
Learning: true,
Port: int(vnl.Swap16(VxlanPort)), //network endian order
Proxy: true,
L3miss: true,
L2miss: true,
}
return f.Netlinker.LinkAdd(vxlan)
}
func createVxlan(name string, vni uint32) error {
defer osl.InitOSContext()()
vxlan := &netlink.Vxlan{
LinkAttrs: netlink.LinkAttrs{Name: name},
VxlanId: int(vni),
Learning: true,
Port: int(nl.Swap16(vxlanPort)), //network endian order
Proxy: true,
L3miss: true,
L2miss: true,
}
if err := netlink.LinkAdd(vxlan); err != nil {
return fmt.Errorf("error creating vxlan interface: %v", err)
}
return nil
}
func (f *Factory) CreateVxlan(name string, vni int) (netlink.Link, error) {
vxlan := &netlink.Vxlan{
LinkAttrs: netlink.LinkAttrs{
Name: name,
},
VxlanId: vni,
Learning: true,
Port: int(vnl.Swap16(VxlanPort)), //network endian order
Proxy: true,
L3miss: true,
L2miss: true,
}
err := f.Netlinker.LinkAdd(vxlan)
if err != nil {
return nil, err
}
return vxlan, nil
}
func createVxlan(vni uint32) (string, error) {
name, err := netutils.GenerateIfaceName("vxlan", 7)
if err != nil {
return "", fmt.Errorf("error generating vxlan name: %v", err)
}
vxlan := &netlink.Vxlan{
LinkAttrs: netlink.LinkAttrs{Name: name},
VxlanId: int(vni),
Learning: true,
Port: int(nl.Swap16(vxlanPort)), //network endian order
Proxy: true,
L3miss: true,
L2miss: true,
}
if err := netlink.LinkAdd(vxlan); err != nil {
return "", fmt.Errorf("error creating vxlan interface: %v", err)
}
return name, nil
}
// FilterAdd will add a filter to the system.
// Equivalent to: `tc filter add $filter`
func FilterAdd(filter Filter) error {
req := nl.NewNetlinkRequest(syscall.RTM_NEWTFILTER, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
base := filter.Attrs()
msg := &nl.TcMsg{
Family: nl.FAMILY_ALL,
Ifindex: int32(base.LinkIndex),
Handle: base.Handle,
Parent: base.Parent,
Info: MakeHandle(base.Priority, nl.Swap16(base.Protocol)),
}
req.AddData(msg)
req.AddData(nl.NewRtAttr(nl.TCA_KIND, nl.ZeroTerminated(filter.Type())))
options := nl.NewRtAttr(nl.TCA_OPTIONS, nil)
if u32, ok := filter.(*U32); ok {
// match all
sel := nl.TcU32Sel{
Nkeys: 1,
Flags: nl.TC_U32_TERMINAL,
}
sel.Keys = append(sel.Keys, nl.TcU32Key{})
nl.NewRtAttrChild(options, nl.TCA_U32_SEL, sel.Serialize())
actions := nl.NewRtAttrChild(options, nl.TCA_U32_ACT, nil)
table := nl.NewRtAttrChild(actions, nl.TCA_ACT_TAB, nil)
nl.NewRtAttrChild(table, nl.TCA_KIND, nl.ZeroTerminated("mirred"))
// redirect to other interface
mir := nl.TcMirred{
Action: nl.TC_ACT_STOLEN,
Eaction: nl.TCA_EGRESS_REDIR,
Ifindex: uint32(u32.RedirIndex),
}
aopts := nl.NewRtAttrChild(table, nl.TCA_OPTIONS, nil)
nl.NewRtAttrChild(aopts, nl.TCA_MIRRED_PARMS, mir.Serialize())
}
req.AddData(options)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// FilterAdd will add a filter to the system.
// Equivalent to: `tc filter add $filter`
func FilterAdd(filter Filter) error {
native = nl.NativeEndian()
req := nl.NewNetlinkRequest(syscall.RTM_NEWTFILTER, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
base := filter.Attrs()
msg := &nl.TcMsg{
Family: nl.FAMILY_ALL,
Ifindex: int32(base.LinkIndex),
Handle: base.Handle,
Parent: base.Parent,
Info: MakeHandle(base.Priority, nl.Swap16(base.Protocol)),
}
req.AddData(msg)
req.AddData(nl.NewRtAttr(nl.TCA_KIND, nl.ZeroTerminated(filter.Type())))
options := nl.NewRtAttr(nl.TCA_OPTIONS, nil)
if u32, ok := filter.(*U32); ok {
// match all
sel := nl.TcU32Sel{
Nkeys: 1,
Flags: nl.TC_U32_TERMINAL,
}
sel.Keys = append(sel.Keys, nl.TcU32Key{})
nl.NewRtAttrChild(options, nl.TCA_U32_SEL, sel.Serialize())
actions := nl.NewRtAttrChild(options, nl.TCA_U32_ACT, nil)
table := nl.NewRtAttrChild(actions, nl.TCA_ACT_TAB, nil)
nl.NewRtAttrChild(table, nl.TCA_KIND, nl.ZeroTerminated("mirred"))
// redirect to other interface
mir := nl.TcMirred{
Action: nl.TC_ACT_STOLEN,
Eaction: nl.TCA_EGRESS_REDIR,
Ifindex: uint32(u32.RedirIndex),
}
aopts := nl.NewRtAttrChild(table, nl.TCA_OPTIONS, nil)
nl.NewRtAttrChild(aopts, nl.TCA_MIRRED_PARMS, mir.Serialize())
} else if fw, ok := filter.(*Fw); ok {
if fw.Mask != 0 {
b := make([]byte, 4)
native.PutUint32(b, fw.Mask)
nl.NewRtAttrChild(options, nl.TCA_FW_MASK, b)
}
if fw.InDev != "" {
nl.NewRtAttrChild(options, nl.TCA_FW_INDEV, nl.ZeroTerminated(fw.InDev))
}
if (fw.Police != nl.TcPolice{}) {
police := nl.NewRtAttrChild(options, nl.TCA_FW_POLICE, nil)
nl.NewRtAttrChild(police, nl.TCA_POLICE_TBF, fw.Police.Serialize())
if (fw.Police.Rate != nl.TcRateSpec{}) {
payload := SerializeRtab(fw.Rtab)
nl.NewRtAttrChild(police, nl.TCA_POLICE_RATE, payload)
}
if (fw.Police.PeakRate != nl.TcRateSpec{}) {
payload := SerializeRtab(fw.Ptab)
nl.NewRtAttrChild(police, nl.TCA_POLICE_PEAKRATE, payload)
}
}
if fw.ClassId != 0 {
b := make([]byte, 4)
native.PutUint32(b, fw.ClassId)
nl.NewRtAttrChild(options, nl.TCA_FW_CLASSID, b)
}
}
req.AddData(options)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// FilterList gets a list of filters in the system.
// Equivalent to: `tc filter show`.
// Generally retunrs nothing if link and parent are not specified.
func FilterList(link Link, parent uint32) ([]Filter, error) {
req := nl.NewNetlinkRequest(syscall.RTM_GETTFILTER, syscall.NLM_F_DUMP)
msg := &nl.TcMsg{
Family: nl.FAMILY_ALL,
Parent: parent,
}
if link != nil {
base := link.Attrs()
ensureIndex(base)
msg.Ifindex = int32(base.Index)
}
req.AddData(msg)
msgs, err := req.Execute(syscall.NETLINK_ROUTE, syscall.RTM_NEWTFILTER)
if err != nil {
return nil, err
}
var res []Filter
for _, m := range msgs {
msg := nl.DeserializeTcMsg(m)
attrs, err := nl.ParseRouteAttr(m[msg.Len():])
if err != nil {
return nil, err
}
base := FilterAttrs{
LinkIndex: int(msg.Ifindex),
Handle: msg.Handle,
Parent: msg.Parent,
}
base.Priority, base.Protocol = MajorMinor(msg.Info)
base.Protocol = nl.Swap16(base.Protocol)
var filter Filter
filterType := ""
detailed := false
for _, attr := range attrs {
switch attr.Attr.Type {
case nl.TCA_KIND:
filterType = string(attr.Value[:len(attr.Value)-1])
switch filterType {
case "u32":
filter = &U32{}
case "fw":
filter = &Fw{}
default:
filter = &GenericFilter{FilterType: filterType}
}
case nl.TCA_OPTIONS:
switch filterType {
case "u32":
data, err := nl.ParseRouteAttr(attr.Value)
if err != nil {
return nil, err
}
detailed, err = parseU32Data(filter, data)
if err != nil {
return nil, err
}
case "fw":
data, err := nl.ParseRouteAttr(attr.Value)
if err != nil {
return nil, err
}
detailed, err = parseFwData(filter, data)
if err != nil {
return nil, err
}
}
}
}
// only return the detailed version of the filter
if detailed {
*filter.Attrs() = base
res = append(res, filter)
}
}
return res, nil
}
// FilterAdd will add a filter to the system.
// Equivalent to: `tc filter add $filter`
func FilterAdd(filter Filter) error {
native = nl.NativeEndian()
req := nl.NewNetlinkRequest(syscall.RTM_NEWTFILTER, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
base := filter.Attrs()
msg := &nl.TcMsg{
Family: nl.FAMILY_ALL,
Ifindex: int32(base.LinkIndex),
Handle: base.Handle,
Parent: base.Parent,
Info: MakeHandle(base.Priority, nl.Swap16(base.Protocol)),
}
req.AddData(msg)
req.AddData(nl.NewRtAttr(nl.TCA_KIND, nl.ZeroTerminated(filter.Type())))
options := nl.NewRtAttr(nl.TCA_OPTIONS, nil)
if u32, ok := filter.(*U32); ok {
// match all
sel := nl.TcU32Sel{
Nkeys: 1,
Flags: nl.TC_U32_TERMINAL,
}
sel.Keys = append(sel.Keys, nl.TcU32Key{})
nl.NewRtAttrChild(options, nl.TCA_U32_SEL, sel.Serialize())
if u32.ClassId != 0 {
nl.NewRtAttrChild(options, nl.TCA_U32_CLASSID, nl.Uint32Attr(u32.ClassId))
}
actionsAttr := nl.NewRtAttrChild(options, nl.TCA_U32_ACT, nil)
// backwards compatibility
if u32.RedirIndex != 0 {
u32.Actions = append([]Action{NewMirredAction(u32.RedirIndex)}, u32.Actions...)
}
if err := encodeActions(actionsAttr, u32.Actions); err != nil {
return err
}
} else if fw, ok := filter.(*Fw); ok {
if fw.Mask != 0 {
b := make([]byte, 4)
native.PutUint32(b, fw.Mask)
nl.NewRtAttrChild(options, nl.TCA_FW_MASK, b)
}
if fw.InDev != "" {
nl.NewRtAttrChild(options, nl.TCA_FW_INDEV, nl.ZeroTerminated(fw.InDev))
}
if (fw.Police != nl.TcPolice{}) {
police := nl.NewRtAttrChild(options, nl.TCA_FW_POLICE, nil)
nl.NewRtAttrChild(police, nl.TCA_POLICE_TBF, fw.Police.Serialize())
if (fw.Police.Rate != nl.TcRateSpec{}) {
payload := SerializeRtab(fw.Rtab)
nl.NewRtAttrChild(police, nl.TCA_POLICE_RATE, payload)
}
if (fw.Police.PeakRate != nl.TcRateSpec{}) {
payload := SerializeRtab(fw.Ptab)
nl.NewRtAttrChild(police, nl.TCA_POLICE_PEAKRATE, payload)
}
}
if fw.ClassId != 0 {
b := make([]byte, 4)
native.PutUint32(b, fw.ClassId)
nl.NewRtAttrChild(options, nl.TCA_FW_CLASSID, b)
}
} else if bpf, ok := filter.(*BpfFilter); ok {
var bpf_flags uint32
if bpf.ClassId != 0 {
nl.NewRtAttrChild(options, nl.TCA_BPF_CLASSID, nl.Uint32Attr(bpf.ClassId))
}
if bpf.Fd >= 0 {
nl.NewRtAttrChild(options, nl.TCA_BPF_FD, nl.Uint32Attr((uint32(bpf.Fd))))
}
if bpf.Name != "" {
nl.NewRtAttrChild(options, nl.TCA_BPF_NAME, nl.ZeroTerminated(bpf.Name))
}
if bpf.DirectAction {
bpf_flags |= nl.TCA_BPF_FLAG_ACT_DIRECT
}
nl.NewRtAttrChild(options, nl.TCA_BPF_FLAGS, nl.Uint32Attr(bpf_flags))
}
req.AddData(options)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
Expect(err).To(Equal(errors.New("link add failed")))
})
})
})
Describe("CreateVxlan", func() {
var expectedVxlan *netlink.Vxlan
BeforeEach(func() {
expectedVxlan = &netlink.Vxlan{
LinkAttrs: netlink.LinkAttrs{
Name: "some-device-name",
},
VxlanId: int(42),
Learning: true,
Port: int(nl.Swap16(links.VxlanPort)), //network endian order
Proxy: true,
L3miss: true,
L2miss: true,
}
})
It("should add the link", func() {
err := factory.CreateVxlan("some-device-name", 42)
Expect(err).NotTo(HaveOccurred())
Expect(netlinker.LinkAddCallCount()).To(Equal(1))
Expect(netlinker.LinkAddArgsForCall(0)).To(Equal(expectedVxlan))
})
Context("when adding the link fails", func() {
// XfrmStateList gets a list of xfrm states in the system.
// Equivalent to: `ip xfrm state show`.
// The list can be filtered by ip family.
func XfrmStateList(family int) ([]XfrmState, error) {
req := nl.NewNetlinkRequest(nl.XFRM_MSG_GETSA, syscall.NLM_F_DUMP)
msg := nl.NewIfInfomsg(family)
req.AddData(msg)
msgs, err := req.Execute(syscall.NETLINK_XFRM, nl.XFRM_MSG_NEWSA)
if err != nil {
return nil, err
}
var res []XfrmState
for _, m := range msgs {
msg := nl.DeserializeXfrmUsersaInfo(m)
if family != FAMILY_ALL && family != int(msg.Family) {
continue
}
var state XfrmState
state.Dst = msg.Id.Daddr.ToIP()
state.Src = msg.Saddr.ToIP()
state.Proto = Proto(msg.Id.Proto)
state.Mode = Mode(msg.Mode)
state.Spi = int(nl.Swap32(msg.Id.Spi))
state.Reqid = int(msg.Reqid)
state.ReplayWindow = int(msg.ReplayWindow)
attrs, err := nl.ParseRouteAttr(m[msg.Len():])
if err != nil {
return nil, err
}
for _, attr := range attrs {
switch attr.Attr.Type {
case nl.XFRMA_ALG_AUTH, nl.XFRMA_ALG_CRYPT:
var resAlgo *XfrmStateAlgo
if attr.Attr.Type == nl.XFRMA_ALG_AUTH {
if state.Auth == nil {
state.Auth = new(XfrmStateAlgo)
}
resAlgo = state.Auth
} else {
state.Crypt = new(XfrmStateAlgo)
resAlgo = state.Crypt
}
algo := nl.DeserializeXfrmAlgo(attr.Value[:])
(*resAlgo).Name = nl.BytesToString(algo.AlgName[:])
(*resAlgo).Key = algo.AlgKey
case nl.XFRMA_ALG_AUTH_TRUNC:
if state.Auth == nil {
state.Auth = new(XfrmStateAlgo)
}
algo := nl.DeserializeXfrmAlgoAuth(attr.Value[:])
state.Auth.Name = nl.BytesToString(algo.AlgName[:])
state.Auth.Key = algo.AlgKey
state.Auth.TruncateLen = int(algo.AlgTruncLen)
case nl.XFRMA_ENCAP:
encap := nl.DeserializeXfrmEncapTmpl(attr.Value[:])
state.Encap = new(XfrmStateEncap)
state.Encap.Type = EncapType(encap.EncapType)
state.Encap.SrcPort = int(nl.Swap16(encap.EncapSport))
state.Encap.DstPort = int(nl.Swap16(encap.EncapDport))
state.Encap.OriginalAddress = encap.EncapOa.ToIP()
}
}
res = append(res, state)
}
return res, nil
}
func parseXfrmState(m []byte, family int) (*XfrmState, error) {
msg := nl.DeserializeXfrmUsersaInfo(m)
// This is mainly for the state dump
if family != FAMILY_ALL && family != int(msg.Family) {
return nil, familyError
}
var state XfrmState
state.Dst = msg.Id.Daddr.ToIP()
state.Src = msg.Saddr.ToIP()
state.Proto = Proto(msg.Id.Proto)
state.Mode = Mode(msg.Mode)
state.Spi = int(nl.Swap32(msg.Id.Spi))
state.Reqid = int(msg.Reqid)
state.ReplayWindow = int(msg.ReplayWindow)
lftToLimits(&msg.Lft, &state.Limits)
attrs, err := nl.ParseRouteAttr(m[nl.SizeofXfrmUsersaInfo:])
if err != nil {
return nil, err
}
for _, attr := range attrs {
switch attr.Attr.Type {
case nl.XFRMA_ALG_AUTH, nl.XFRMA_ALG_CRYPT:
var resAlgo *XfrmStateAlgo
if attr.Attr.Type == nl.XFRMA_ALG_AUTH {
if state.Auth == nil {
state.Auth = new(XfrmStateAlgo)
}
resAlgo = state.Auth
} else {
state.Crypt = new(XfrmStateAlgo)
resAlgo = state.Crypt
}
algo := nl.DeserializeXfrmAlgo(attr.Value[:])
(*resAlgo).Name = nl.BytesToString(algo.AlgName[:])
(*resAlgo).Key = algo.AlgKey
case nl.XFRMA_ALG_AUTH_TRUNC:
if state.Auth == nil {
state.Auth = new(XfrmStateAlgo)
}
algo := nl.DeserializeXfrmAlgoAuth(attr.Value[:])
state.Auth.Name = nl.BytesToString(algo.AlgName[:])
state.Auth.Key = algo.AlgKey
state.Auth.TruncateLen = int(algo.AlgTruncLen)
case nl.XFRMA_ALG_AEAD:
state.Aead = new(XfrmStateAlgo)
algo := nl.DeserializeXfrmAlgoAEAD(attr.Value[:])
state.Aead.Name = nl.BytesToString(algo.AlgName[:])
state.Aead.Key = algo.AlgKey
state.Aead.ICVLen = int(algo.AlgICVLen)
case nl.XFRMA_ENCAP:
encap := nl.DeserializeXfrmEncapTmpl(attr.Value[:])
state.Encap = new(XfrmStateEncap)
state.Encap.Type = EncapType(encap.EncapType)
state.Encap.SrcPort = int(nl.Swap16(encap.EncapSport))
state.Encap.DstPort = int(nl.Swap16(encap.EncapDport))
state.Encap.OriginalAddress = encap.EncapOa.ToIP()
case nl.XFRMA_MARK:
mark := nl.DeserializeXfrmMark(attr.Value[:])
state.Mark = new(XfrmMark)
state.Mark.Value = mark.Value
state.Mark.Mask = mark.Mask
}
}
return &state, nil
}
})
})
It("moves a vxlan adapter into the sandbox", func() {
sandboxNS, err := sandboxRepo.Get(sandboxName)
Expect(err).NotTo(HaveOccurred())
sandboxNS.Execute(func(_ *os.File) error {
link, err := netlink.LinkByName(fmt.Sprintf("vxlan%d", vni))
Expect(err).NotTo(HaveOccurred())
vxlan, ok := link.(*netlink.Vxlan)
Expect(ok).To(BeTrue())
Expect(vxlan.VxlanId).To(Equal(vni))
Expect(vxlan.Learning).To(BeTrue())
Expect(vxlan.Port).To(BeEquivalentTo(nl.Swap16(4789)))
Expect(vxlan.Proxy).To(BeTrue())
Expect(vxlan.L2miss).To(BeTrue())
Expect(vxlan.L3miss).To(BeTrue())
Expect(vxlan.LinkAttrs.Flags & net.FlagUp).To(Equal(net.FlagUp))
return nil
})
})
It("creates a vxlan bridge in the sandbox", func() {
var bridge *netlink.Bridge
var addrs []netlink.Addr
sandboxNS, err := sandboxRepo.Get(sandboxName)
Expect(err).NotTo(HaveOccurred())