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Diffstat (limited to 'pkg/packet/bgp/bgp.go')
-rw-r--r--pkg/packet/bgp/bgp.go234
1 files changed, 3 insertions, 231 deletions
diff --git a/pkg/packet/bgp/bgp.go b/pkg/packet/bgp/bgp.go
index 7adabe95..98408109 100644
--- a/pkg/packet/bgp/bgp.go
+++ b/pkg/packet/bgp/bgp.go
@@ -7833,237 +7833,6 @@ type PathAttributeLs struct {
TLVs []LsTLVInterface
}
-func (p *PathAttributeLs) Extract() *LsAttribute {
- l := &LsAttribute{}
-
- for _, tlv := range p.TLVs {
- switch v := tlv.(type) {
- case *LsTLVNodeFlagBits:
- l.Node.Flags = v.Extract()
-
- case *LsTLVOpaqueNodeAttr:
- l.Node.Opaque = &v.Attr
-
- case *LsTLVNodeName:
- l.Node.Name = &v.Name
-
- case *LsTLVIsisArea:
- l.Node.IsisArea = &v.Area
-
- case *LsTLVLocalIPv4RouterID:
- l.Node.LocalRouterID = &v.IP
- l.Link.LocalRouterID = &v.IP
-
- case *LsTLVLocalIPv6RouterID:
- l.Node.LocalRouterIDv6 = &v.IP
- l.Link.LocalRouterIDv6 = &v.IP
-
- case *LsTLVSrCapabilities:
- l.Node.SrCapabilties = v.Extract()
-
- case *LsTLVSrAlgorithm:
- l.Node.SrAlgorithms = &v.Algorithm
-
- case *LsTLVSrLocalBlock:
- l.Node.SrLocalBlock = v.Extract()
-
- case *LsTLVRemoteIPv4RouterID:
- l.Link.RemoteRouterID = &v.IP
-
- case *LsTLVRemoteIPv6RouterID:
- l.Link.RemoteRouterIDv6 = &v.IP
-
- case *LsTLVAdminGroup:
- l.Link.AdminGroup = &v.AdminGroup
-
- case *LsTLVMaxLinkBw:
- l.Link.Bandwidth = &v.Bandwidth
-
- case *LsTLVMaxReservableLinkBw:
- l.Link.ReservableBandwidth = &v.Bandwidth
-
- case *LsTLVUnreservedBw:
- l.Link.UnreservedBandwidth = &v.Bandwidth
-
- case *LsTLVSrlg:
- l.Link.Srlgs = &v.Srlgs
-
- case *LsTLVTEDefaultMetric:
- l.Link.DefaultTEMetric = &v.Metric
-
- case *LsTLVIGPMetric:
- l.Link.IGPMetric = &v.Metric
-
- case *LsTLVOpaqueLinkAttr:
- l.Link.Opaque = &v.Attr
-
- case *LsTLVLinkName:
- l.Link.Name = &v.Name
-
- case *LsTLVAdjacencySID:
- l.Link.SrAdjacencySID = &v.SID
-
- case *LsTLVIGPFlags:
- l.Prefix.IGPFlags = v.Extract()
-
- case *LsTLVOpaquePrefixAttr:
- l.Prefix.Opaque = &v.Attr
-
- case *LsTLVPrefixSID:
- l.Prefix.SrPrefixSID = &v.SID
- }
- }
-
- return l
-}
-
-func (p *PathAttributeLs) DecodeFromBytes(data []byte, options ...*MarshallingOption) error {
- tlvs, err := p.PathAttribute.DecodeFromBytes(data)
- if err != nil {
- return err
- }
-
- for len(tlvs) >= tlvHdrLen {
- t := &LsTLV{}
- _, err := t.DecodeFromBytes(tlvs)
- if err != nil {
- return err
- }
-
- var tlv LsTLVInterface
- switch t.Type {
- // Node NLRI-related TLVs (https://tools.ietf.org/html/rfc7752#section-3.3.1)
- case LS_TLV_NODE_FLAG_BITS:
- tlv = &LsTLVNodeFlagBits{}
-
- case LS_TLV_OPAQUE_NODE_ATTR:
- tlv = &LsTLVOpaqueNodeAttr{}
-
- case LS_TLV_NODE_NAME:
- tlv = &LsTLVNodeName{}
-
- case LS_TLV_ISIS_AREA:
- tlv = &LsTLVIsisArea{}
-
- // Used by Link NLRI as well.
- case LS_TLV_IPV4_LOCAL_ROUTER_ID:
- tlv = &LsTLVLocalIPv4RouterID{}
-
- // Used by Link NLRI as well.
- case LS_TLV_IPV6_LOCAL_ROUTER_ID:
- tlv = &LsTLVLocalIPv6RouterID{}
-
- // SR-related TLVs (draft-ietf-idr-bgp-ls-segment-routing-ext-08) for Node NLRI
- case LS_TLV_SR_CAPABILITIES:
- tlv = &LsTLVSrCapabilities{}
-
- case LS_TLV_SR_ALGORITHM:
- tlv = &LsTLVSrAlgorithm{}
-
- case LS_TLV_SR_LOCAL_BLOCK:
- tlv = &LsTLVSrLocalBlock{}
-
- // Link NLRI-related TLVs (https://tools.ietf.org/html/rfc7752#section-3.3.2)
- case LS_TLV_IPV4_REMOTE_ROUTER_ID:
- tlv = &LsTLVRemoteIPv4RouterID{}
-
- case LS_TLV_IPV6_REMOTE_ROUTER_ID:
- tlv = &LsTLVRemoteIPv6RouterID{}
-
- case LS_TLV_ADMIN_GROUP:
- tlv = &LsTLVAdminGroup{}
-
- case LS_TLV_MAX_LINK_BANDWIDTH:
- tlv = &LsTLVMaxLinkBw{}
-
- case LS_TLV_MAX_RESERVABLE_BANDWIDTH:
- tlv = &LsTLVMaxReservableLinkBw{}
-
- case LS_TLV_UNRESERVED_BANDWIDTH:
- tlv = &LsTLVUnreservedBw{}
-
- case LS_TLV_SRLG:
- tlv = &LsTLVSrlg{}
-
- case LS_TLV_TE_DEFAULT_METRIC:
- tlv = &LsTLVTEDefaultMetric{}
-
- case LS_TLV_IGP_METRIC:
- tlv = &LsTLVIGPMetric{}
-
- case LS_TLV_OPAQUE_LINK_ATTR:
- tlv = &LsTLVOpaqueLinkAttr{}
-
- case LS_TLV_LINK_NAME:
- tlv = &LsTLVLinkName{}
-
- // SR-related TLVs (draft-ietf-idr-bgp-ls-segment-routing-ext-08) for Link NLRI
- case LS_TLV_ADJACENCY_SID:
- tlv = &LsTLVAdjacencySID{}
-
- // Prefix NLRI-related TLVs (https://tools.ietf.org/html/rfc7752#section-3.3.3)
- case LS_TLV_IGP_FLAGS:
- tlv = &LsTLVIGPFlags{}
-
- case LS_TLV_OPAQUE_PREFIX_ATTR:
- tlv = &LsTLVOpaquePrefixAttr{}
-
- // SR-related TLVs (draft-ietf-idr-bgp-ls-segment-routing-ext-08) for Prefix NLRI
- case LS_TLV_PREFIX_SID:
- tlv = &LsTLVPrefixSID{}
-
- default:
- tlvs = tlvs[t.Len():]
- continue
- }
-
- if err := tlv.DecodeFromBytes(tlvs); err != nil {
- return err
- }
- tlvs = tlvs[t.Len():]
-
- p.TLVs = append(p.TLVs, tlv)
- }
-
- return nil
-}
-
-func (p *PathAttributeLs) Serialize(options ...*MarshallingOption) ([]byte, error) {
- buf := []byte{}
-
- for _, tlv := range p.TLVs {
- s, err := tlv.Serialize()
- if err != nil {
- return nil, err
- }
- buf = append(buf, s...)
- }
-
- return p.PathAttribute.Serialize(buf, options...)
-}
-
-func (p *PathAttributeLs) String() string {
- var buf bytes.Buffer
-
- for _, tlv := range p.TLVs {
- buf.WriteString(fmt.Sprintf("%s ", tlv.String()))
- }
-
- return fmt.Sprintf("{LsAttributes: %s}", buf.String())
-}
-
-func (p *PathAttributeLs) MarshalJSON() ([]byte, error) {
- return json.Marshal(struct {
- Type BGPAttrType `json:"type"`
- Flags BGPAttrFlag `json:"flags"`
- LsAttribute
- }{
- p.GetType(),
- p.GetFlags(),
- *p.Extract(),
- })
-}
-
func AfiSafiToRouteFamily(afi uint16, safi uint8) RouteFamily {
return RouteFamily(int(afi)<<16 | int(safi))
}
@@ -8285,6 +8054,7 @@ const (
_
BGP_ATTR_TYPE_LS // = 29
BGP_ATTR_TYPE_LARGE_COMMUNITY BGPAttrType = 32
+ BGP_ATTR_TYPE_PREFIX_SID = 40
)
// NOTIFICATION Error Code RFC 4271 4.5.
@@ -12373,6 +12143,8 @@ func GetPathAttribute(data []byte) (PathAttributeInterface, error) {
return &PathAttributeLargeCommunities{}, nil
case BGP_ATTR_TYPE_LS:
return &PathAttributeLs{}, nil
+ case BGP_ATTR_TYPE_PREFIX_SID:
+ return &PathAttributePrefixSID{}, nil
}
return &PathAttributeUnknown{}, nil
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 22:45:02 +0000