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juanfont.headscale/routes.go

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2021-04-28 16:55:29 +02:00
package headscale
import (
"encoding/json"
"errors"
"log"
"github.com/jinzhu/gorm/dialects/postgres"
"inet.af/netaddr"
)
// GetNodeRoutes returns the subnet routes advertised by a node (identified by
// namespace and node name)
func (h *Headscale) GetNodeRoutes(namespace string, nodeName string) (*[]netaddr.IPPrefix, error) {
m, err := h.GetMachine(namespace, nodeName)
if err != nil {
return nil, err
}
hi, err := m.GetHostInfo()
if err != nil {
return nil, err
}
return &hi.RoutableIPs, nil
}
// EnableNodeRoute enables a subnet route advertised by a node (identified by
// namespace and node name)
func (h *Headscale) EnableNodeRoute(namespace string, nodeName string, routeStr string) error {
m, err := h.GetMachine(namespace, nodeName)
if err != nil {
return err
}
hi, err := m.GetHostInfo()
if err != nil {
return err
}
route, err := netaddr.ParseIPPrefix(routeStr)
if err != nil {
return err
}
for _, rIP := range hi.RoutableIPs {
if rIP == route {
db, err := h.db()
if err != nil {
log.Printf("Cannot open DB: %s", err)
return err
}
routes, _ := json.Marshal([]string{routeStr}) // TODO: only one for the time being, so overwriting the rest
m.EnabledRoutes = postgres.Jsonb{RawMessage: json.RawMessage(routes)}
db.Save(&m)
db.Close()
peers, _ := h.getPeers(*m)
h.pollMu.Lock()
for _, p := range *peers {
if pUp, ok := h.clientsPolling[uint64(p.ID)]; ok {
pUp <- []byte{}
}
}
h.pollMu.Unlock()
return nil
}
}
return errors.New("could not find routable range")
}