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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
)
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.AfiSafiList"]; !ok {
bt.Global.AfiSafiList = []AfiSafi{
AfiSafi{AfiSafiName: "ipv4-unicast"},
AfiSafi{AfiSafiName: "ipv6-unicast"},
AfiSafi{AfiSafiName: "l2vpn-evpn"},
AfiSafi{AfiSafiName: "encap"},
}
}
nidx := 0
for _, key := range md.Keys() {
if !strings.HasPrefix(key.String(), "NeighborList") {
continue
}
if key.String() == "NeighborList" {
neighbors = append(neighbors, neighbor{attributes: make(map[string]bool)})
nidx++
} else {
neighbors[nidx-1].attributes[key.String()] = true
}
}
for i, n := range neighbors {
if _, ok := n.attributes["NeighborList.Timers.ConnectRetry"]; !ok {
bt.NeighborList[i].Timers.HoldTime = float64(DEFAULT_CONNECT_RETRY)
}
if _, ok := n.attributes["NeighborList.Timers.HoldTime"]; !ok {
bt.NeighborList[i].Timers.HoldTime = float64(DEFAULT_HOLDTIME)
}
if _, ok := n.attributes["NeighborList.Timers.KeepaliveInterval"]; !ok {
bt.NeighborList[i].Timers.KeepaliveInterval = bt.NeighborList[i].Timers.HoldTime / 3
}
if _, ok := n.attributes["NeighborList.Timers.IdleHoldTimeAfterReset"]; !ok {
bt.NeighborList[i].Timers.IdleHoldTimeAfterReset = float64(DEFAULT_IDLE_HOLDTIME_AFTER_RESET)
}
if _, ok := n.attributes["NeighborList.AfiSafiList"]; !ok {
if bt.NeighborList[i].NeighborAddress.To4() != nil {
bt.NeighborList[i].AfiSafiList = []AfiSafi{
AfiSafi{AfiSafiName: "ipv4-unicast"}}
} else {
bt.NeighborList[i].AfiSafiList = []AfiSafi{
AfiSafi{AfiSafiName: "ipv6-unicast"}}
}
} else {
for _, rf := range bt.NeighborList[i].AfiSafiList {
_, err := bgp.GetRouteFamily(rf.AfiSafiName)
if err != nil {
return err
}
}
}
if _, ok := n.attributes["NeighborList.PeerType"]; !ok {
if bt.NeighborList[i].PeerAs != bt.Global.As {
bt.NeighborList[i].PeerType = PEER_TYPE_EXTERNAL
} else {
bt.NeighborList[i].PeerType = PEER_TYPE_INTERNAL
}
}
}
return nil
}
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