mirror of
https://github.com/netbirdio/netbird.git
synced 2026-04-18 08:16:39 +00:00
fc1da94520
Add initial support to ingress ports on the client code. - new types where added - new protocol messages and controller
52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
package ipfwdstate
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
log "github.com/sirupsen/logrus"
|
|
|
|
"github.com/netbirdio/netbird/client/internal/routemanager/systemops"
|
|
)
|
|
|
|
// IPForwardingState is a struct that keeps track of the IP forwarding state.
|
|
// todo: read initial state of the IP forwarding from the system and reset the state based on it
|
|
type IPForwardingState struct {
|
|
enabledCounter int
|
|
}
|
|
|
|
func NewIPForwardingState() *IPForwardingState {
|
|
return &IPForwardingState{}
|
|
}
|
|
|
|
func (f *IPForwardingState) RequestForwarding() error {
|
|
if f.enabledCounter != 0 {
|
|
f.enabledCounter++
|
|
return nil
|
|
}
|
|
|
|
if err := systemops.EnableIPForwarding(); err != nil {
|
|
return fmt.Errorf("failed to enable IP forwarding with sysctl: %w", err)
|
|
}
|
|
f.enabledCounter = 1
|
|
log.Info("IP forwarding enabled")
|
|
|
|
return nil
|
|
}
|
|
|
|
func (f *IPForwardingState) ReleaseForwarding() error {
|
|
if f.enabledCounter == 0 {
|
|
return nil
|
|
}
|
|
|
|
if f.enabledCounter > 1 {
|
|
f.enabledCounter--
|
|
return nil
|
|
}
|
|
|
|
// if failed to disable IP forwarding we anyway decrement the counter
|
|
f.enabledCounter = 0
|
|
|
|
// todo call systemops.DisableIPForwarding()
|
|
return nil
|
|
}
|