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-rw-r--r--vendor/github.com/vishvananda/netlink/route_linux.go674
1 files changed, 674 insertions, 0 deletions
diff --git a/vendor/github.com/vishvananda/netlink/route_linux.go b/vendor/github.com/vishvananda/netlink/route_linux.go
new file mode 100644
index 000000000..cd739e714
--- /dev/null
+++ b/vendor/github.com/vishvananda/netlink/route_linux.go
@@ -0,0 +1,674 @@
+package netlink
+
+import (
+ "fmt"
+ "net"
+ "strings"
+ "syscall"
+
+ "github.com/vishvananda/netlink/nl"
+ "github.com/vishvananda/netns"
+)
+
+// RtAttr is shared so it is in netlink_linux.go
+
+const (
+ SCOPE_UNIVERSE Scope = syscall.RT_SCOPE_UNIVERSE
+ SCOPE_SITE Scope = syscall.RT_SCOPE_SITE
+ SCOPE_LINK Scope = syscall.RT_SCOPE_LINK
+ SCOPE_HOST Scope = syscall.RT_SCOPE_HOST
+ SCOPE_NOWHERE Scope = syscall.RT_SCOPE_NOWHERE
+)
+
+const (
+ RT_FILTER_PROTOCOL uint64 = 1 << (1 + iota)
+ RT_FILTER_SCOPE
+ RT_FILTER_TYPE
+ RT_FILTER_TOS
+ RT_FILTER_IIF
+ RT_FILTER_OIF
+ RT_FILTER_DST
+ RT_FILTER_SRC
+ RT_FILTER_GW
+ RT_FILTER_TABLE
+)
+
+const (
+ FLAG_ONLINK NextHopFlag = syscall.RTNH_F_ONLINK
+ FLAG_PERVASIVE NextHopFlag = syscall.RTNH_F_PERVASIVE
+)
+
+var testFlags = []flagString{
+ {f: FLAG_ONLINK, s: "onlink"},
+ {f: FLAG_PERVASIVE, s: "pervasive"},
+}
+
+func listFlags(flag int) []string {
+ var flags []string
+ for _, tf := range testFlags {
+ if flag&int(tf.f) != 0 {
+ flags = append(flags, tf.s)
+ }
+ }
+ return flags
+}
+
+func (r *Route) ListFlags() []string {
+ return listFlags(r.Flags)
+}
+
+func (n *NexthopInfo) ListFlags() []string {
+ return listFlags(n.Flags)
+}
+
+type MPLSDestination struct {
+ Labels []int
+}
+
+func (d *MPLSDestination) Family() int {
+ return nl.FAMILY_MPLS
+}
+
+func (d *MPLSDestination) Decode(buf []byte) error {
+ d.Labels = nl.DecodeMPLSStack(buf)
+ return nil
+}
+
+func (d *MPLSDestination) Encode() ([]byte, error) {
+ return nl.EncodeMPLSStack(d.Labels...), nil
+}
+
+func (d *MPLSDestination) String() string {
+ s := make([]string, 0, len(d.Labels))
+ for _, l := range d.Labels {
+ s = append(s, fmt.Sprintf("%d", l))
+ }
+ return strings.Join(s, "/")
+}
+
+type MPLSEncap struct {
+ Labels []int
+}
+
+func (e *MPLSEncap) Type() int {
+ return nl.LWTUNNEL_ENCAP_MPLS
+}
+
+func (e *MPLSEncap) Decode(buf []byte) error {
+ if len(buf) < 4 {
+ return fmt.Errorf("Lack of bytes")
+ }
+ native := nl.NativeEndian()
+ l := native.Uint16(buf)
+ if len(buf) < int(l) {
+ return fmt.Errorf("Lack of bytes")
+ }
+ buf = buf[:l]
+ typ := native.Uint16(buf[2:])
+ if typ != nl.MPLS_IPTUNNEL_DST {
+ return fmt.Errorf("Unknown MPLS Encap Type: %d", typ)
+ }
+ e.Labels = nl.DecodeMPLSStack(buf[4:])
+ return nil
+}
+
+func (e *MPLSEncap) Encode() ([]byte, error) {
+ s := nl.EncodeMPLSStack(e.Labels...)
+ native := nl.NativeEndian()
+ hdr := make([]byte, 4)
+ native.PutUint16(hdr, uint16(len(s)+4))
+ native.PutUint16(hdr[2:], nl.MPLS_IPTUNNEL_DST)
+ return append(hdr, s...), nil
+}
+
+func (e *MPLSEncap) String() string {
+ s := make([]string, 0, len(e.Labels))
+ for _, l := range e.Labels {
+ s = append(s, fmt.Sprintf("%d", l))
+ }
+ return strings.Join(s, "/")
+}
+
+// RouteAdd will add a route to the system.
+// Equivalent to: `ip route add $route`
+func RouteAdd(route *Route) error {
+ return pkgHandle.RouteAdd(route)
+}
+
+// RouteAdd will add a route to the system.
+// Equivalent to: `ip route add $route`
+func (h *Handle) RouteAdd(route *Route) error {
+ flags := syscall.NLM_F_CREATE | syscall.NLM_F_EXCL | syscall.NLM_F_ACK
+ req := h.newNetlinkRequest(syscall.RTM_NEWROUTE, flags)
+ return h.routeHandle(route, req, nl.NewRtMsg())
+}
+
+// RouteReplace will add a route to the system.
+// Equivalent to: `ip route replace $route`
+func RouteReplace(route *Route) error {
+ return pkgHandle.RouteReplace(route)
+}
+
+// RouteReplace will add a route to the system.
+// Equivalent to: `ip route replace $route`
+func (h *Handle) RouteReplace(route *Route) error {
+ flags := syscall.NLM_F_CREATE | syscall.NLM_F_REPLACE | syscall.NLM_F_ACK
+ req := h.newNetlinkRequest(syscall.RTM_NEWROUTE, flags)
+ return h.routeHandle(route, req, nl.NewRtMsg())
+}
+
+// RouteDel will delete a route from the system.
+// Equivalent to: `ip route del $route`
+func RouteDel(route *Route) error {
+ return pkgHandle.RouteDel(route)
+}
+
+// RouteDel will delete a route from the system.
+// Equivalent to: `ip route del $route`
+func (h *Handle) RouteDel(route *Route) error {
+ req := h.newNetlinkRequest(syscall.RTM_DELROUTE, syscall.NLM_F_ACK)
+ return h.routeHandle(route, req, nl.NewRtDelMsg())
+}
+
+func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg) error {
+ if (route.Dst == nil || route.Dst.IP == nil) && route.Src == nil && route.Gw == nil && route.MPLSDst == nil {
+ return fmt.Errorf("one of Dst.IP, Src, or Gw must not be nil")
+ }
+
+ family := -1
+ var rtAttrs []*nl.RtAttr
+
+ if route.Dst != nil && route.Dst.IP != nil {
+ dstLen, _ := route.Dst.Mask.Size()
+ msg.Dst_len = uint8(dstLen)
+ dstFamily := nl.GetIPFamily(route.Dst.IP)
+ family = dstFamily
+ var dstData []byte
+ if dstFamily == FAMILY_V4 {
+ dstData = route.Dst.IP.To4()
+ } else {
+ dstData = route.Dst.IP.To16()
+ }
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_DST, dstData))
+ } else if route.MPLSDst != nil {
+ family = nl.FAMILY_MPLS
+ msg.Dst_len = uint8(20)
+ msg.Type = syscall.RTN_UNICAST
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_DST, nl.EncodeMPLSStack(*route.MPLSDst)))
+ }
+
+ if route.NewDst != nil {
+ if family != -1 && family != route.NewDst.Family() {
+ return fmt.Errorf("new destination and destination are not the same address family")
+ }
+ buf, err := route.NewDst.Encode()
+ if err != nil {
+ return err
+ }
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(nl.RTA_NEWDST, buf))
+ }
+
+ if route.Encap != nil {
+ buf := make([]byte, 2)
+ native.PutUint16(buf, uint16(route.Encap.Type()))
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(nl.RTA_ENCAP_TYPE, buf))
+ buf, err := route.Encap.Encode()
+ if err != nil {
+ return err
+ }
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(nl.RTA_ENCAP, buf))
+ }
+
+ if route.Src != nil {
+ srcFamily := nl.GetIPFamily(route.Src)
+ if family != -1 && family != srcFamily {
+ return fmt.Errorf("source and destination ip are not the same IP family")
+ }
+ family = srcFamily
+ var srcData []byte
+ if srcFamily == FAMILY_V4 {
+ srcData = route.Src.To4()
+ } else {
+ srcData = route.Src.To16()
+ }
+ // The commonly used src ip for routes is actually PREFSRC
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_PREFSRC, srcData))
+ }
+
+ if route.Gw != nil {
+ gwFamily := nl.GetIPFamily(route.Gw)
+ if family != -1 && family != gwFamily {
+ return fmt.Errorf("gateway, source, and destination ip are not the same IP family")
+ }
+ family = gwFamily
+ var gwData []byte
+ if gwFamily == FAMILY_V4 {
+ gwData = route.Gw.To4()
+ } else {
+ gwData = route.Gw.To16()
+ }
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_GATEWAY, gwData))
+ }
+
+ if len(route.MultiPath) > 0 {
+ buf := []byte{}
+ for _, nh := range route.MultiPath {
+ rtnh := &nl.RtNexthop{
+ RtNexthop: syscall.RtNexthop{
+ Hops: uint8(nh.Hops),
+ Ifindex: int32(nh.LinkIndex),
+ Flags: uint8(nh.Flags),
+ },
+ }
+ children := []nl.NetlinkRequestData{}
+ if nh.Gw != nil {
+ gwFamily := nl.GetIPFamily(nh.Gw)
+ if family != -1 && family != gwFamily {
+ return fmt.Errorf("gateway, source, and destination ip are not the same IP family")
+ }
+ if gwFamily == FAMILY_V4 {
+ children = append(children, nl.NewRtAttr(syscall.RTA_GATEWAY, []byte(nh.Gw.To4())))
+ } else {
+ children = append(children, nl.NewRtAttr(syscall.RTA_GATEWAY, []byte(nh.Gw.To16())))
+ }
+ }
+ if nh.NewDst != nil {
+ if family != -1 && family != nh.NewDst.Family() {
+ return fmt.Errorf("new destination and destination are not the same address family")
+ }
+ buf, err := nh.NewDst.Encode()
+ if err != nil {
+ return err
+ }
+ children = append(children, nl.NewRtAttr(nl.RTA_NEWDST, buf))
+ }
+ if nh.Encap != nil {
+ buf := make([]byte, 2)
+ native.PutUint16(buf, uint16(nh.Encap.Type()))
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(nl.RTA_ENCAP_TYPE, buf))
+ buf, err := nh.Encap.Encode()
+ if err != nil {
+ return err
+ }
+ children = append(children, nl.NewRtAttr(nl.RTA_ENCAP, buf))
+ }
+ rtnh.Children = children
+ buf = append(buf, rtnh.Serialize()...)
+ }
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_MULTIPATH, buf))
+ }
+
+ if route.Table > 0 {
+ if route.Table >= 256 {
+ msg.Table = syscall.RT_TABLE_UNSPEC
+ b := make([]byte, 4)
+ native.PutUint32(b, uint32(route.Table))
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_TABLE, b))
+ } else {
+ msg.Table = uint8(route.Table)
+ }
+ }
+
+ if route.Priority > 0 {
+ b := make([]byte, 4)
+ native.PutUint32(b, uint32(route.Priority))
+ rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_PRIORITY, b))
+ }
+ if route.Tos > 0 {
+ msg.Tos = uint8(route.Tos)
+ }
+ if route.Protocol > 0 {
+ msg.Protocol = uint8(route.Protocol)
+ }
+ if route.Type > 0 {
+ msg.Type = uint8(route.Type)
+ }
+
+ msg.Flags = uint32(route.Flags)
+ msg.Scope = uint8(route.Scope)
+ msg.Family = uint8(family)
+ req.AddData(msg)
+ for _, attr := range rtAttrs {
+ req.AddData(attr)
+ }
+
+ var (
+ b = make([]byte, 4)
+ native = nl.NativeEndian()
+ )
+ native.PutUint32(b, uint32(route.LinkIndex))
+
+ req.AddData(nl.NewRtAttr(syscall.RTA_OIF, b))
+
+ _, err := req.Execute(syscall.NETLINK_ROUTE, 0)
+ return err
+}
+
+// RouteList gets a list of routes in the system.
+// Equivalent to: `ip route show`.
+// The list can be filtered by link and ip family.
+func RouteList(link Link, family int) ([]Route, error) {
+ return pkgHandle.RouteList(link, family)
+}
+
+// RouteList gets a list of routes in the system.
+// Equivalent to: `ip route show`.
+// The list can be filtered by link and ip family.
+func (h *Handle) RouteList(link Link, family int) ([]Route, error) {
+ var routeFilter *Route
+ if link != nil {
+ routeFilter = &Route{
+ LinkIndex: link.Attrs().Index,
+ }
+ }
+ return h.RouteListFiltered(family, routeFilter, RT_FILTER_OIF)
+}
+
+// RouteListFiltered gets a list of routes in the system filtered with specified rules.
+// All rules must be defined in RouteFilter struct
+func RouteListFiltered(family int, filter *Route, filterMask uint64) ([]Route, error) {
+ return pkgHandle.RouteListFiltered(family, filter, filterMask)
+}
+
+// RouteListFiltered gets a list of routes in the system filtered with specified rules.
+// All rules must be defined in RouteFilter struct
+func (h *Handle) RouteListFiltered(family int, filter *Route, filterMask uint64) ([]Route, error) {
+ req := h.newNetlinkRequest(syscall.RTM_GETROUTE, syscall.NLM_F_DUMP)
+ infmsg := nl.NewIfInfomsg(family)
+ req.AddData(infmsg)
+
+ msgs, err := req.Execute(syscall.NETLINK_ROUTE, syscall.RTM_NEWROUTE)
+ if err != nil {
+ return nil, err
+ }
+
+ var res []Route
+ for _, m := range msgs {
+ msg := nl.DeserializeRtMsg(m)
+ if msg.Flags&syscall.RTM_F_CLONED != 0 {
+ // Ignore cloned routes
+ continue
+ }
+ if msg.Table != syscall.RT_TABLE_MAIN {
+ if filter == nil || filter != nil && filterMask&RT_FILTER_TABLE == 0 {
+ // Ignore non-main tables
+ continue
+ }
+ }
+ route, err := deserializeRoute(m)
+ if err != nil {
+ return nil, err
+ }
+ if filter != nil {
+ switch {
+ case filterMask&RT_FILTER_TABLE != 0 && filter.Table != syscall.RT_TABLE_UNSPEC && route.Table != filter.Table:
+ continue
+ case filterMask&RT_FILTER_PROTOCOL != 0 && route.Protocol != filter.Protocol:
+ continue
+ case filterMask&RT_FILTER_SCOPE != 0 && route.Scope != filter.Scope:
+ continue
+ case filterMask&RT_FILTER_TYPE != 0 && route.Type != filter.Type:
+ continue
+ case filterMask&RT_FILTER_TOS != 0 && route.Tos != filter.Tos:
+ continue
+ case filterMask&RT_FILTER_OIF != 0 && route.LinkIndex != filter.LinkIndex:
+ continue
+ case filterMask&RT_FILTER_IIF != 0 && route.ILinkIndex != filter.ILinkIndex:
+ continue
+ case filterMask&RT_FILTER_GW != 0 && !route.Gw.Equal(filter.Gw):
+ continue
+ case filterMask&RT_FILTER_SRC != 0 && !route.Src.Equal(filter.Src):
+ continue
+ case filterMask&RT_FILTER_DST != 0:
+ if filter.MPLSDst == nil || route.MPLSDst == nil || (*filter.MPLSDst) != (*route.MPLSDst) {
+ if filter.Dst == nil {
+ if route.Dst != nil {
+ continue
+ }
+ } else {
+ if route.Dst == nil {
+ continue
+ }
+ aMaskLen, aMaskBits := route.Dst.Mask.Size()
+ bMaskLen, bMaskBits := filter.Dst.Mask.Size()
+ if !(route.Dst.IP.Equal(filter.Dst.IP) && aMaskLen == bMaskLen && aMaskBits == bMaskBits) {
+ continue
+ }
+ }
+ }
+ }
+ }
+ res = append(res, route)
+ }
+ return res, nil
+}
+
+// deserializeRoute decodes a binary netlink message into a Route struct
+func deserializeRoute(m []byte) (Route, error) {
+ msg := nl.DeserializeRtMsg(m)
+ attrs, err := nl.ParseRouteAttr(m[msg.Len():])
+ if err != nil {
+ return Route{}, err
+ }
+ route := Route{
+ Scope: Scope(msg.Scope),
+ Protocol: int(msg.Protocol),
+ Table: int(msg.Table),
+ Type: int(msg.Type),
+ Tos: int(msg.Tos),
+ Flags: int(msg.Flags),
+ }
+
+ native := nl.NativeEndian()
+ var encap, encapType syscall.NetlinkRouteAttr
+ for _, attr := range attrs {
+ switch attr.Attr.Type {
+ case syscall.RTA_GATEWAY:
+ route.Gw = net.IP(attr.Value)
+ case syscall.RTA_PREFSRC:
+ route.Src = net.IP(attr.Value)
+ case syscall.RTA_DST:
+ if msg.Family == nl.FAMILY_MPLS {
+ stack := nl.DecodeMPLSStack(attr.Value)
+ if len(stack) == 0 || len(stack) > 1 {
+ return route, fmt.Errorf("invalid MPLS RTA_DST")
+ }
+ route.MPLSDst = &stack[0]
+ } else {
+ route.Dst = &net.IPNet{
+ IP: attr.Value,
+ Mask: net.CIDRMask(int(msg.Dst_len), 8*len(attr.Value)),
+ }
+ }
+ case syscall.RTA_OIF:
+ route.LinkIndex = int(native.Uint32(attr.Value[0:4]))
+ case syscall.RTA_IIF:
+ route.ILinkIndex = int(native.Uint32(attr.Value[0:4]))
+ case syscall.RTA_PRIORITY:
+ route.Priority = int(native.Uint32(attr.Value[0:4]))
+ case syscall.RTA_TABLE:
+ route.Table = int(native.Uint32(attr.Value[0:4]))
+ case syscall.RTA_MULTIPATH:
+ parseRtNexthop := func(value []byte) (*NexthopInfo, []byte, error) {
+ if len(value) < syscall.SizeofRtNexthop {
+ return nil, nil, fmt.Errorf("Lack of bytes")
+ }
+ nh := nl.DeserializeRtNexthop(value)
+ if len(value) < int(nh.RtNexthop.Len) {
+ return nil, nil, fmt.Errorf("Lack of bytes")
+ }
+ info := &NexthopInfo{
+ LinkIndex: int(nh.RtNexthop.Ifindex),
+ Hops: int(nh.RtNexthop.Hops),
+ Flags: int(nh.RtNexthop.Flags),
+ }
+ attrs, err := nl.ParseRouteAttr(value[syscall.SizeofRtNexthop:int(nh.RtNexthop.Len)])
+ if err != nil {
+ return nil, nil, err
+ }
+ var encap, encapType syscall.NetlinkRouteAttr
+ for _, attr := range attrs {
+ switch attr.Attr.Type {
+ case syscall.RTA_GATEWAY:
+ info.Gw = net.IP(attr.Value)
+ case nl.RTA_NEWDST:
+ var d Destination
+ switch msg.Family {
+ case nl.FAMILY_MPLS:
+ d = &MPLSDestination{}
+ }
+ if err := d.Decode(attr.Value); err != nil {
+ return nil, nil, err
+ }
+ info.NewDst = d
+ case nl.RTA_ENCAP_TYPE:
+ encapType = attr
+ case nl.RTA_ENCAP:
+ encap = attr
+ }
+ }
+
+ if len(encap.Value) != 0 && len(encapType.Value) != 0 {
+ typ := int(native.Uint16(encapType.Value[0:2]))
+ var e Encap
+ switch typ {
+ case nl.LWTUNNEL_ENCAP_MPLS:
+ e = &MPLSEncap{}
+ if err := e.Decode(encap.Value); err != nil {
+ return nil, nil, err
+ }
+ }
+ info.Encap = e
+ }
+
+ return info, value[int(nh.RtNexthop.Len):], nil
+ }
+ rest := attr.Value
+ for len(rest) > 0 {
+ info, buf, err := parseRtNexthop(rest)
+ if err != nil {
+ return route, err
+ }
+ route.MultiPath = append(route.MultiPath, info)
+ rest = buf
+ }
+ case nl.RTA_NEWDST:
+ var d Destination
+ switch msg.Family {
+ case nl.FAMILY_MPLS:
+ d = &MPLSDestination{}
+ }
+ if err := d.Decode(attr.Value); err != nil {
+ return route, err
+ }
+ route.NewDst = d
+ case nl.RTA_ENCAP_TYPE:
+ encapType = attr
+ case nl.RTA_ENCAP:
+ encap = attr
+ }
+ }
+
+ if len(encap.Value) != 0 && len(encapType.Value) != 0 {
+ typ := int(native.Uint16(encapType.Value[0:2]))
+ var e Encap
+ switch typ {
+ case nl.LWTUNNEL_ENCAP_MPLS:
+ e = &MPLSEncap{}
+ if err := e.Decode(encap.Value); err != nil {
+ return route, err
+ }
+ }
+ route.Encap = e
+ }
+
+ return route, nil
+}
+
+// RouteGet gets a route to a specific destination from the host system.
+// Equivalent to: 'ip route get'.
+func RouteGet(destination net.IP) ([]Route, error) {
+ return pkgHandle.RouteGet(destination)
+}
+
+// RouteGet gets a route to a specific destination from the host system.
+// Equivalent to: 'ip route get'.
+func (h *Handle) RouteGet(destination net.IP) ([]Route, error) {
+ req := h.newNetlinkRequest(syscall.RTM_GETROUTE, syscall.NLM_F_REQUEST)
+ family := nl.GetIPFamily(destination)
+ var destinationData []byte
+ var bitlen uint8
+ if family == FAMILY_V4 {
+ destinationData = destination.To4()
+ bitlen = 32
+ } else {
+ destinationData = destination.To16()
+ bitlen = 128
+ }
+ msg := &nl.RtMsg{}
+ msg.Family = uint8(family)
+ msg.Dst_len = bitlen
+ req.AddData(msg)
+
+ rtaDst := nl.NewRtAttr(syscall.RTA_DST, destinationData)
+ req.AddData(rtaDst)
+
+ msgs, err := req.Execute(syscall.NETLINK_ROUTE, syscall.RTM_NEWROUTE)
+ if err != nil {
+ return nil, err
+ }
+
+ var res []Route
+ for _, m := range msgs {
+ route, err := deserializeRoute(m)
+ if err != nil {
+ return nil, err
+ }
+ res = append(res, route)
+ }
+ return res, nil
+
+}
+
+// RouteSubscribe takes a chan down which notifications will be sent
+// when routes are added or deleted. Close the 'done' chan to stop subscription.
+func RouteSubscribe(ch chan<- RouteUpdate, done <-chan struct{}) error {
+ return routeSubscribeAt(netns.None(), netns.None(), ch, done)
+}
+
+// RouteSubscribeAt works like RouteSubscribe plus it allows the caller
+// to choose the network namespace in which to subscribe (ns).
+func RouteSubscribeAt(ns netns.NsHandle, ch chan<- RouteUpdate, done <-chan struct{}) error {
+ return routeSubscribeAt(ns, netns.None(), ch, done)
+}
+
+func routeSubscribeAt(newNs, curNs netns.NsHandle, ch chan<- RouteUpdate, done <-chan struct{}) error {
+ s, err := nl.SubscribeAt(newNs, curNs, syscall.NETLINK_ROUTE, syscall.RTNLGRP_IPV4_ROUTE, syscall.RTNLGRP_IPV6_ROUTE)
+ if err != nil {
+ return err
+ }
+ if done != nil {
+ go func() {
+ <-done
+ s.Close()
+ }()
+ }
+ go func() {
+ defer close(ch)
+ for {
+ msgs, err := s.Receive()
+ if err != nil {
+ return
+ }
+ for _, m := range msgs {
+ route, err := deserializeRoute(m.Data)
+ if err != nil {
+ return
+ }
+ ch <- RouteUpdate{Type: m.Header.Type, Route: route}
+ }
+ }
+ }()
+
+ return nil
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-10-22 16:23:08 +0000