diff options
| -rw-r--r-- | packet/bgp.go | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/packet/bgp.go b/packet/bgp.go index 49cec3a3..49aa625d 100644 --- a/packet/bgp.go +++ b/packet/bgp.go @@ -1070,6 +1070,16 @@ type PathAttributeOrigin struct { PathAttribute } +func NewPathAttributeOrigin(value uint8) *PathAttributeOrigin { + return &PathAttributeOrigin{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_ORIGIN, + Value: []byte{byte(value)}, + }, + } +} + type AsPathParam struct { Type uint8 Num uint8 @@ -1161,6 +1171,16 @@ func (p *PathAttributeAsPath) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeAsPath(value []AsPathParam) *PathAttributeAsPath { + return &PathAttributeAsPath{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_AS_PATH, + }, + Value: value, + } +} + type PathAttributeNextHop struct { PathAttribute Value net.IP @@ -1177,6 +1197,16 @@ func (p *PathAttributeNextHop) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeNextHop(value string) *PathAttributeNextHop { + return &PathAttributeNextHop{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_NEXT_HOP, + }, + Value: net.ParseIP(value).To4(), + } +} + type PathAttributeMultiExitDisc struct { PathAttribute Value uint32 @@ -1195,6 +1225,16 @@ func (p *PathAttributeMultiExitDisc) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeMultiExitDisc(value uint32) *PathAttributeMultiExitDisc { + return &PathAttributeMultiExitDisc{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_OPTIONAL, + Type: BGP_ATTR_TYPE_MULTI_EXIT_DISC, + }, + Value: value, + } +} + type PathAttributeLocalPref struct { PathAttribute Value uint32 @@ -1213,10 +1253,29 @@ func (p *PathAttributeLocalPref) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeLocalPref(value uint32) *PathAttributeLocalPref { + return &PathAttributeLocalPref{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_LOCAL_PREF, + }, + Value: value, + } +} + type PathAttributeAtomicAggregate struct { PathAttribute } +func NewPathAttributeAtomicAggregate() *PathAttributeAtomicAggregate { + return &PathAttributeAtomicAggregate{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_ATOMIC_AGGREGATE, + }, + } +} + type PathAttributeAggregatorParam struct { AS uint32 Address net.IP @@ -1247,6 +1306,19 @@ func (p *PathAttributeAggregator) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeAggregator(as uint16, address string) *PathAttributeAggregator { + return &PathAttributeAggregator{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_OPTIONAL | BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_AGGREGATOR, + }, + Value: PathAttributeAggregatorParam{ + AS: uint32(as), + Address: net.ParseIP(address).To4(), + }, + } +} + type PathAttributeCommunities struct { PathAttribute Value []uint32 @@ -1271,6 +1343,13 @@ func (p *PathAttributeCommunities) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeCommunities(value []uint32) *PathAttributeCommunities { + return &PathAttributeCommunities{ + PathAttribute{BGP_ATTR_FLAG_OPTIONAL | BGP_ATTR_FLAG_TRANSITIVE, BGP_ATTR_TYPE_COMMUNITIES, 0, nil}, + value, + } +} + type PathAttributeOriginatorId struct { PathAttribute Value net.IP @@ -1289,6 +1368,13 @@ func (p *PathAttributeOriginatorId) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeOriginatorId(value string) *PathAttributeOriginatorId { + return &PathAttributeOriginatorId{ + PathAttribute{BGP_ATTR_FLAG_OPTIONAL, BGP_ATTR_TYPE_ORIGINATOR_ID, 0, nil}, + net.ParseIP(value).To4(), + } +} + type PathAttributeClusterList struct { PathAttribute Value []net.IP @@ -1313,6 +1399,17 @@ func (p *PathAttributeClusterList) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeClusterList(value []string) *PathAttributeClusterList { + l := make([]net.IP, len(value)) + for i, v := range value { + l[i] = net.ParseIP(v).To4() + } + return &PathAttributeClusterList{ + PathAttribute{BGP_ATTR_FLAG_OPTIONAL, BGP_ATTR_TYPE_CLUSTER_LIST, 0, nil}, + l, + } +} + type PathAttributeMpReachNLRI struct { PathAttribute Nexthop net.IP @@ -1379,6 +1476,17 @@ func (p *PathAttributeMpReachNLRI) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeMpReachNLRI(nexthop string, nlri []AddrPrefixInterface) *PathAttributeMpReachNLRI { + return &PathAttributeMpReachNLRI{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_OPTIONAL, + Type: BGP_ATTR_TYPE_MP_REACH_NLRI, + }, + Nexthop: net.ParseIP(nexthop), + Value: nlri, + } +} + type PathAttributeMpUnreachNLRI struct { PathAttribute Value []AddrPrefixInterface @@ -1417,6 +1525,13 @@ func (p *PathAttributeMpUnreachNLRI) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeMpUnreachNLRI(nlri []AddrPrefixInterface) *PathAttributeMpUnreachNLRI { + return &PathAttributeMpUnreachNLRI{ + PathAttribute{BGP_ATTR_FLAG_OPTIONAL, BGP_ATTR_TYPE_MP_UNREACH_NLRI, 0, nil}, + nlri, + } +} + type ExtendedCommunityInterface interface { Serialize() ([]byte, error) } @@ -1538,6 +1653,16 @@ func (p *PathAttributeExtendedCommunities) DecodeFromBytes(data []byte) error { return nil } +func NewPathAttributeExtendedCommunities(value []ExtendedCommunityInterface) *PathAttributeExtendedCommunities { + return &PathAttributeExtendedCommunities{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_OPTIONAL | BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_EXTENDED_COMMUNITIES, + }, + Value: value, + } +} + type PathAttributeAs4Path struct { PathAttribute Value []AsPathParam @@ -1550,6 +1675,16 @@ func (p *PathAttributeAs4Path) DecodeFromBytes(data []byte) error { return nil } +func NewPathAttributeAs4Path(value []AsPathParam) *PathAttributeAs4Path { + return &PathAttributeAs4Path{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_AS4_PATH, + }, + Value: value, + } +} + type PathAttributeAs4Aggregator struct { PathAttribute Value PathAttributeAggregatorParam @@ -1571,6 +1706,19 @@ func (p *PathAttributeAs4Aggregator) Serialize() ([]byte, error) { return p.PathAttribute.Serialize() } +func NewPathAttributeAs4Aggregator(as uint32, address string) *PathAttributeAs4Aggregator { + return &PathAttributeAs4Aggregator{ + PathAttribute: PathAttribute{ + Flags: BGP_ATTR_FLAG_OPTIONAL | BGP_ATTR_FLAG_TRANSITIVE, + Type: BGP_ATTR_TYPE_AS4_AGGREGATOR, + }, + Value: PathAttributeAggregatorParam{ + AS: as, + Address: net.ParseIP(address), + }, + } +} + type PathAttributeUnknown struct { PathAttribute } |