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TUN-6695: Implement ICMP proxy for linux

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This commit is contained in:
cthuang
2022-08-25 12:34:19 +01:00
committed by Chung-Ting Huang
parent faa86ffeca
commit fc20a22685
7 changed files with 374 additions and 33 deletions
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11
supervisor/supervisor.go
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@@ -4,7 +4,7 @@ import (
"context"
"errors"
"fmt"
"net"
"net/netip"
"strings"
"time"
@@ -117,9 +117,12 @@ func NewSupervisor(config *TunnelConfig, orchestrator *orchestration.Orchestrato
connAwareLogger: log,
}
if useDatagramV2(config) {
// For non-privileged datagram-oriented ICMP endpoints, network must be "udp4" or "udp6"
// TODO: TUN-6654 listen for IPv6 and decide if it should listen on specific IP
icmpProxy, err := ingress.NewICMPProxy(net.IPv4zero, config.Log)
listenIP, err := netip.ParseAddr("0.0.0.0")
if err != nil {
return nil, err
}
icmpProxy, err := ingress.NewICMPProxy(listenIP, config.Log)
if err != nil {
log.Logger().Warn().Err(err).Msg("Failed to create icmp proxy, will continue to use datagram v1")
} else {
@@ -156,7 +159,7 @@ func (s *Supervisor) Run(
) error {
if s.edgeTunnelServer.icmpProxy != nil {
go func() {
if err := s.edgeTunnelServer.icmpProxy.ListenResponse(ctx); err != nil {
if err := s.edgeTunnelServer.icmpProxy.Serve(ctx); err != nil {
s.log.Logger().Err(err).Msg("icmp proxy terminated")
}
}()