/
interception_linux.go
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/
interception_linux.go
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package interception
import (
"context"
"time"
bandwidth "github.com/safing/portmaster/firewall/interception/ebpf/bandwidth"
conn_listener "github.com/safing/portmaster/firewall/interception/ebpf/connection_listener"
"github.com/safing/portmaster/firewall/interception/nfq"
"github.com/safing/portmaster/network"
"github.com/safing/portmaster/network/packet"
)
// start starts the interception.
func startInterception(packets chan packet.Packet) error {
// Start packet interception via nfqueue.
err := StartNfqueueInterception(packets)
if err != nil {
return err
}
// Start ebpf new connection listener.
module.StartServiceWorker("ebpf connection listener", 0, func(ctx context.Context) error {
return conn_listener.ConnectionListenerWorker(ctx, packets)
})
// Start ebpf bandwidth stats monitor.
module.StartServiceWorker("ebpf bandwidth stats monitor", 0, func(ctx context.Context) error {
return bandwidth.BandwidthStatsWorker(ctx, 1*time.Second, BandwidthUpdates)
})
return nil
}
// stop starts the interception.
func stopInterception() error {
return StopNfqueueInterception()
}
// ResetVerdictOfAllConnections resets all connections so they are forced to go thought the firewall again.
func ResetVerdictOfAllConnections() error {
return nfq.DeleteAllMarkedConnection()
}
// UpdateVerdictOfConnection deletes the verdict of the given connection so it can be initialized again with the next packet.
func UpdateVerdictOfConnection(conn *network.Connection) error {
return nfq.DeleteMarkedConnection(conn)
}