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|
package config
import (
"github.com/BurntSushi/toml"
"github.com/osrg/gobgp/packet"
"strings"
)
const (
DEFAULT_HOLDTIME = 90
DEFAULT_IDLE_HOLDTIME_AFTER_RESET = 30
DEFAULT_CONNECT_RETRY = 120
DEFAULT_MPLS_LABEL_MIN = 16000
DEFAULT_MPLS_LABEL_MAX = 1048575
)
type neighbor struct {
attributes map[string]bool
}
func SetDefaultConfigValues(md toml.MetaData, bt *Bgp) error {
neighbors := []neighbor{}
global := make(map[string]bool)
for _, key := range md.Keys() {
if !strings.HasPrefix(key.String(), "Global") {
continue
}
if key.String() != "Global" {
global[key.String()] = true
}
}
if _, ok := global["Global.AfiSafis.AfiSafiList"]; !ok {
bt.Global.AfiSafis.AfiSafiList = []AfiSafi{
AfiSafi{AfiSafiName: "ipv4-unicast"},
AfiSafi{AfiSafiName: "ipv6-unicast"},
AfiSafi{AfiSafiName: "l3vpn-ipv4-unicast"},
AfiSafi{AfiSafiName: "l3vpn-ipv6-unicast"},
AfiSafi{AfiSafiName: "l2vpn-evpn"},
AfiSafi{AfiSafiName: "encap"},
AfiSafi{AfiSafiName: "rtc"},
AfiSafi{AfiSafiName: "ipv4-flowspec"},
AfiSafi{AfiSafiName: "l3vpn-ipv4-flowspec"},
AfiSafi{AfiSafiName: "ipv6-flowspec"},
AfiSafi{AfiSafiName: "l3vpn-ipv6-flowspec"},
}
}
if _, ok := global["Global.MplsLabelRange.MinLabel"]; !ok {
bt.Global.MplsLabelRange.MinLabel = DEFAULT_MPLS_LABEL_MIN
}
if _, ok := global["Global.MplsLabelRange.MaxLabel"]; !ok {
bt.Global.MplsLabelRange.MaxLabel = DEFAULT_MPLS_LABEL_MAX
}
nidx := 0
for _, key := range md.Keys() {
if !strings.HasPrefix(key.String(), "Neighbors.NeighborList") {
continue
}
if key.String() == "Neighbors.NeighborList" {
neighbors = append(neighbors, neighbor{attributes: make(map[string]bool)})
nidx++
} else {
neighbors[nidx-1].attributes[key.String()] = true
}
}
for i, n := range neighbors {
neighbor := &bt.Neighbors.NeighborList[i]
timerConfig := &neighbor.Timers.TimersConfig
if _, ok := n.attributes["Neighbors.NeighborList.Timers.TimersConfig.ConnectRetry"]; !ok {
timerConfig.HoldTime = float64(DEFAULT_CONNECT_RETRY)
}
if _, ok := n.attributes["Neighbors.NeighborList.Timers.TimersConfig.HoldTime"]; !ok {
timerConfig.HoldTime = float64(DEFAULT_HOLDTIME)
}
if _, ok := n.attributes["Neighbors.NeighborList.Timers.TimersConfig.KeepaliveInterval"]; !ok {
timerConfig.KeepaliveInterval = timerConfig.HoldTime / 3
}
if _, ok := n.attributes["Neighbors.NeighborList.Timers.TimersConfig.IdleHoldTimeAfterReset"]; !ok {
timerConfig.IdleHoldTimeAfterReset = float64(DEFAULT_IDLE_HOLDTIME_AFTER_RESET)
}
if _, ok := n.attributes["Neighbors.NeighborList.AfiSafis.AfiSafiList"]; !ok {
if neighbor.NeighborConfig.NeighborAddress.To4() != nil {
neighbor.AfiSafis.AfiSafiList = []AfiSafi{
AfiSafi{AfiSafiName: "ipv4-unicast"}}
} else {
neighbor.AfiSafis.AfiSafiList = []AfiSafi{
AfiSafi{AfiSafiName: "ipv6-unicast"}}
}
} else {
for _, rf := range neighbor.AfiSafis.AfiSafiList {
_, err := bgp.GetRouteFamily(rf.AfiSafiName)
if err != nil {
return err
}
}
}
if _, ok := n.attributes["Neighbors.NeighborList.NeighborConfig.PeerType"]; !ok {
if neighbor.NeighborConfig.PeerAs != bt.Global.GlobalConfig.As {
neighbor.NeighborConfig.PeerType = PEER_TYPE_EXTERNAL
} else {
neighbor.NeighborConfig.PeerType = PEER_TYPE_INTERNAL
}
}
}
for _, r := range bt.RpkiServers.RpkiServerList {
if r.RpkiServerConfig.Port == 0 {
r.RpkiServerConfig.Port = bgp.RPKI_DEFAULT_PORT
}
}
return nil
}
|
