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|
package config
import (
"fmt"
"github.com/osrg/gobgp/packet"
"github.com/spf13/viper"
"net"
)
const (
DEFAULT_HOLDTIME = 90
DEFAULT_IDLE_HOLDTIME_AFTER_RESET = 30
DEFAULT_CONNECT_RETRY = 120
DEFAULT_MPLS_LABEL_MIN = 16000
DEFAULT_MPLS_LABEL_MAX = 1048575
)
func SetDefaultConfigValues(v *viper.Viper, b *Bgp) error {
if v == nil {
v = viper.New()
}
if !v.IsSet("global.afi-safis") {
b.Global.AfiSafis = []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 b.Global.ListenConfig.Port == 0 {
b.Global.ListenConfig.Port = bgp.BGP_PORT
}
for idx, server := range b.Global.BmpServers {
if server.Config.Port == 0 {
server.Config.Port = bgp.BMP_DEFAULT_PORT
}
b.Global.BmpServers[idx] = server
}
if !v.IsSet("global.mpls-label-range.min-label") {
b.Global.MplsLabelRange.MinLabel = DEFAULT_MPLS_LABEL_MIN
}
if !v.IsSet("global.mpls-label-range.max-label") {
b.Global.MplsLabelRange.MaxLabel = DEFAULT_MPLS_LABEL_MAX
}
// yaml is decoded as []interface{}
// but toml is decoded as []map[string]interface{}.
// currently, viper can't hide this difference.
// handle the difference here.
var list []interface{}
intf := v.Get("neighbors")
if intf != nil {
var ok bool
list, ok = intf.([]interface{})
if !ok {
l, ok := intf.([]map[string]interface{})
if !ok {
return fmt.Errorf("invalid configuration: neighborlist must be a list")
}
list = make([]interface{}, 0, len(l))
for _, m := range l {
list = append(list, m)
}
}
}
for idx, n := range b.Neighbors {
vv := viper.New()
if len(list) > idx {
vv.Set("neighbor", list[idx])
}
if !vv.IsSet("neighbor.timers.config.connect-retry") {
n.Timers.Config.ConnectRetry = float64(DEFAULT_CONNECT_RETRY)
}
if !vv.IsSet("neighbor.timers.config.hold-time") {
n.Timers.Config.HoldTime = float64(DEFAULT_HOLDTIME)
}
if !vv.IsSet("neighbor.timers.config.keepalive-interval") {
n.Timers.Config.KeepaliveInterval = n.Timers.Config.HoldTime / 3
}
if !vv.IsSet("neighbor.timers.config.idle-hold-time-after-reset") {
n.Timers.Config.IdleHoldTimeAfterReset = float64(DEFAULT_IDLE_HOLDTIME_AFTER_RESET)
}
if !vv.IsSet("neighbor.afi-safis") {
if ip := net.ParseIP(n.Config.NeighborAddress); ip.To4() != nil {
n.AfiSafis = []AfiSafi{
AfiSafi{AfiSafiName: "ipv4-unicast"},
}
} else if ip.To16() != nil {
n.AfiSafis = []AfiSafi{
AfiSafi{AfiSafiName: "ipv6-unicast"},
}
} else {
return fmt.Errorf("invalid neighbor address: %s", n.Config.NeighborAddress)
}
}
if !vv.IsSet("neighbor.config.peer-type") {
if n.Config.PeerAs != b.Global.Config.As {
n.Config.PeerType = PEER_TYPE_EXTERNAL
} else {
n.Config.PeerType = PEER_TYPE_INTERNAL
}
}
b.Neighbors[idx] = n
}
for _, r := range b.RpkiServers {
if r.Config.Port == 0 {
r.Config.Port = bgp.RPKI_DEFAULT_PORT
}
}
return nil
}
|
