personal_interest_mirrors/nebula
1
0
Fork 0
mirror of https://github.com/slackhq/nebula.git synced 2026-05-16 04:47:38 +02:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

nbio for tun

Browse Source
This commit is contained in:
JackDoan
2026-04-15 14:01:55 -05:00
parent f46cfb505d
commit 810e07a998
2 changed files with 10 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
interface.go
View File

@@ -294,7 +294,7 @@ func (f *Interface) listenOut(i int) {
//TODO: Trigger Control to close
}
f.l.Debugf("underlay reader %v is done", i)
f.l.Infof("underlay reader %v is done", i)
}
func (f *Interface) listenIn(reader io.ReadWriteCloser, i int) {
@@ -318,7 +318,7 @@ func (f *Interface) listenIn(reader io.ReadWriteCloser, i int) {
f.consumeInsidePacket(packet[:n], fwPacket, nb, out, i, conntrackCache.Get(f.l))
}
f.l.Debugf("overlay reader %v is done", i)
f.l.Infof("overlay reader %v is done", i)
}
func (f *Interface) RegisterConfigChangeCallbacks(c *config.C) {
@@ -493,13 +493,14 @@ func (f *Interface) GetCertState() *CertState {
}
func (f *Interface) Close() error {
var err error
f.closed.Store(true)
// Release the udp readers
for _, u := range f.writers {
err := u.Close()
for i, u := range f.writers {
err = u.Close()
if err != nil {
f.l.WithError(err).Error("Error while closing udp socket")
f.l.WithError(err).WithField("writer", i).Error("Error while closing udp socket")
}
}
@@ -508,11 +509,10 @@ func (f *Interface) Close() error {
if i == 0 {
continue // f.readers[0] is f.inside, which we want to save for last, since it closes other stuff too
}
if err := r.Close(); err != nil {
f.l.WithError(err).Error("Error while closing tun reader")
if err = r.Close(); err != nil {
f.l.WithError(err).WithField("reader", i).Error("Error while closing tun reader")
}
}
// Release the tun device
return f.inside.Close()
}

6
overlay/tun_linux.go
View File

@@ -26,7 +26,6 @@ import (
type tun struct {
io.ReadWriteCloser
fd int
Device string
vpnNetworks []netip.Prefix
MaxMTU int
@@ -85,7 +84,7 @@ func newTunFromFd(c *config.C, l *logrus.Logger, deviceFd int, vpnNetworks []net
}
func newTun(c *config.C, l *logrus.Logger, vpnNetworks []netip.Prefix, multiqueue bool) (*tun, error) {
fd, err := unix.Open("/dev/net/tun", os.O_RDWR, 0)
fd, err := unix.Open("/dev/net/tun", os.O_RDWR|unix.O_NONBLOCK, 0)
if err != nil {
// If /dev/net/tun doesn't exist, try to create it (will happen in docker)
if os.IsNotExist(err) {
@@ -98,7 +97,7 @@ func newTun(c *config.C, l *logrus.Logger, vpnNetworks []netip.Prefix, multiqueu
return nil, fmt.Errorf("failed to create /dev/net/tun: %w", err)
}
fd, err = unix.Open("/dev/net/tun", os.O_RDWR, 0)
fd, err = unix.Open("/dev/net/tun", os.O_RDWR|unix.O_NONBLOCK, 0)
if err != nil {
return nil, fmt.Errorf("created /dev/net/tun, but still failed: %w", err)
}
@@ -136,7 +135,6 @@ func newTun(c *config.C, l *logrus.Logger, vpnNetworks []netip.Prefix, multiqueu
func newTunGeneric(c *config.C, l *logrus.Logger, file *os.File, vpnNetworks []netip.Prefix) (*tun, error) {
t := &tun{
ReadWriteCloser: file,
fd: int(file.Fd()),
vpnNetworks: vpnNetworks,
TXQueueLen: c.GetInt("tun.tx_queue", 500),
useSystemRoutes: c.GetBool("tun.use_system_route_table", false),