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feat(log): log trace if panic (#405)

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This commit is contained in:
naison
2024-12-18 20:50:47 +08:00
committed by GitHub
parent 68d550a80d
commit fad55dce28
9 changed files with 72 additions and 4 deletions
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2
pkg/core/gvisortcphandler.go
View File

@@ -40,10 +40,12 @@ func (h *gvisorTCPHandler) handle(ctx context.Context, tcpConn net.Conn) {
endpoint := channel.New(tcp.DefaultReceiveBufferSize, uint32(config.DefaultMTU), tcpip.GetRandMacAddr())
errChan := make(chan error, 2)
go func() {
defer util.HandleCrash()
h.readFromTCPConnWriteToEndpoint(ctx, tcpConn, endpoint)
util.SafeClose(errChan)
}()
go func() {
defer util.HandleCrash()
h.readFromEndpointWriteToTCPConn(ctx, tcpConn, endpoint)
util.SafeClose(errChan)
}()

3
pkg/core/gvisorudpforwarder.go
View File

@@ -14,6 +14,7 @@ import (
"gvisor.dev/gvisor/pkg/waiter"
"github.com/wencaiwulue/kubevpn/v2/pkg/config"
"github.com/wencaiwulue/kubevpn/v2/pkg/util"
)
func UDPForwarder(s *stack.Stack, ctx context.Context) func(id stack.TransportEndpointID, pkt *stack.PacketBuffer) bool {
@@ -51,6 +52,7 @@ func UDPForwarder(s *stack.Stack, ctx context.Context) func(id stack.TransportEn
defer remote.Close()
errChan := make(chan error, 2)
go func() {
defer util.HandleCrash()
buf := config.LPool.Get().([]byte)[:]
defer config.LPool.Put(buf[:])
@@ -80,6 +82,7 @@ func UDPForwarder(s *stack.Stack, ctx context.Context) func(id stack.TransportEn
errChan <- err
}()
go func() {
defer util.HandleCrash()
buf := config.LPool.Get().([]byte)[:]
defer config.LPool.Put(buf[:])

3
pkg/core/gvisorudphandler.go
View File

@@ -8,6 +8,7 @@ import (
log "github.com/sirupsen/logrus"
"github.com/wencaiwulue/kubevpn/v2/pkg/config"
"github.com/wencaiwulue/kubevpn/v2/pkg/util"
)
type gvisorUDPHandler struct{}
@@ -102,6 +103,7 @@ func handle(ctx context.Context, tcpConn net.Conn, udpConn *net.UDPConn) {
log.Debugf("[TUN-UDP] %s <-> %s", tcpConn.RemoteAddr(), udpConn.LocalAddr())
errChan := make(chan error, 2)
go func() {
defer util.HandleCrash()
buf := config.LPool.Get().([]byte)[:]
defer config.LPool.Put(buf[:])
@@ -146,6 +148,7 @@ func handle(ctx context.Context, tcpConn net.Conn, udpConn *net.UDPConn) {
}()
go func() {
defer util.HandleCrash()
buf := config.LPool.Get().([]byte)[:]
defer config.LPool.Put(buf[:])

6
pkg/core/tunhandler.go
View File

@@ -95,6 +95,7 @@ type Device struct {
}
func (d *Device) readFromTun() {
defer util.HandleCrash()
for {
buf := config.LPool.Get().([]byte)[:]
n, err := d.tun.Read(buf[:])
@@ -128,6 +129,7 @@ func (d *Device) readFromTun() {
}
func (d *Device) writeToTun() {
defer util.HandleCrash()
for e := range d.tunOutbound {
_, err := d.tun.Write(e.data[:e.length])
config.LPool.Put(e.data[:])
@@ -277,6 +279,7 @@ func (p *Peer) sendErr(err error) {
}
func (p *Peer) readFromConn() {
defer util.HandleCrash()
for {
buf := config.LPool.Get().([]byte)[:]
n, from, err := p.conn.ReadFrom(buf[:])
@@ -312,6 +315,7 @@ func (p *Peer) readFromConn() {
}
func (p *Peer) readFromTCPConn() {
defer util.HandleCrash()
for packet := range TCPPacketChan {
src, dst, err := util.ParseIP(packet.Data)
if err != nil {
@@ -331,6 +335,7 @@ func (p *Peer) readFromTCPConn() {
}
func (p *Peer) routePeer() {
defer util.HandleCrash()
for e := range p.connInbound {
if routeToAddr := p.routeMapUDP.RouteTo(e.dst); routeToAddr != nil {
log.Debugf("[UDP] Find UDP route to dst: %s -> %s", e.dst, routeToAddr)
@@ -363,6 +368,7 @@ func (p *Peer) routePeer() {
}
func (p *Peer) routeTUN() {
defer util.HandleCrash()
for e := range p.tunInbound {
if addr := p.routeMapUDP.RouteTo(e.dst); addr != nil {
log.Debugf("[TUN] Find UDP route to dst: %s -> %s", e.dst, addr)

4
pkg/core/tunhandlerclient.go
View File

@@ -81,6 +81,7 @@ func transportTunClient(ctx context.Context, tunInbound <-chan *DataElem, tunOut
defer packetConn.Close()
go func() {
defer util.HandleCrash()
for e := range tunInbound {
if e.src.Equal(e.dst) {
util.SafeWrite(tunOutbound, e)
@@ -96,6 +97,7 @@ func transportTunClient(ctx context.Context, tunInbound <-chan *DataElem, tunOut
}()
go func() {
defer util.HandleCrash()
for {
buf := config.LPool.Get().([]byte)[:]
n, _, err := packetConn.ReadFrom(buf[:])
@@ -145,6 +147,7 @@ func (d *ClientDevice) SetTunInboundHandler(handler func(tunInbound <-chan *Data
}
func (d *ClientDevice) readFromTun() {
defer util.HandleCrash()
for {
buf := config.LPool.Get().([]byte)[:]
n, err := d.tun.Read(buf[:])
@@ -172,6 +175,7 @@ func (d *ClientDevice) readFromTun() {
}
func (d *ClientDevice) writeToTun() {
defer util.HandleCrash()
for e := range d.tunOutbound {
_, err := d.tun.Write(e.data[:e.length])
config.LPool.Put(e.data[:])

4
pkg/daemon/daemon.go
View File

@@ -89,7 +89,9 @@ func (o *SvrOption) Start(ctx context.Context) error {
return err
}
svr := grpc.NewServer()
unaryPanicInterceptor := grpc.UnaryInterceptor(rpc.UnaryPanicHandler)
streamPanicInterceptor := grpc.StreamInterceptor(rpc.StreamPanicHandler)
svr := grpc.NewServer(unaryPanicInterceptor, streamPanicInterceptor)
cleanup, err := admin.Register(svr)
if err != nil {
log.Errorf("Failed to register admin: %v", err)

37
pkg/daemon/rpc/panicinterceptor.go Normal file
View File

@@ -0,0 +1,37 @@
package rpc
import (
"fmt"
"runtime/debug"
"github.com/sirupsen/logrus"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
var _ grpc.UnaryServerInterceptor = UnaryPanicHandler
var _ grpc.StreamServerInterceptor = StreamPanicHandler
func UnaryPanicHandler(ctx context.Context, req any, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp any, err error) {
defer func() {
if r := recover(); r != nil {
str := fmt.Sprintf("Panic: `%s` %s", info.FullMethod, string(debug.Stack()))
err = status.Error(codes.Internal, str)
logrus.Panic(str)
}
}()
return handler(ctx, req)
}
func StreamPanicHandler(srv any, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) (err error) {
defer func() {
if r := recover(); r != nil {
str := fmt.Sprintf("Panic: `%s` %s", info.FullMethod, string(debug.Stack()))
err = status.Error(codes.Internal, str)
logrus.Panic(str)
}
}()
return handler(srv, ss)
}

2
pkg/dns/dns.go
View File

@@ -27,6 +27,7 @@ import (
"tailscale.com/net/dns"
"github.com/wencaiwulue/kubevpn/v2/pkg/config"
"github.com/wencaiwulue/kubevpn/v2/pkg/util"
)
type Config struct {
@@ -73,6 +74,7 @@ func (c *Config) AddServiceNameToHosts(ctx context.Context, serviceInterface v13
}
func (c *Config) watchServiceToAddHosts(ctx context.Context, serviceInterface v13.ServiceInterface, hosts []Entry) {
defer util.HandleCrash()
ticker := time.NewTicker(time.Second * 15)
defer ticker.Stop()
immediate := make(chan struct{}, 1)

9
pkg/util/grpc.go
View File

@@ -6,7 +6,9 @@ import (
"fmt"
"io"
"os"
"runtime/debug"
"github.com/sirupsen/logrus"
"google.golang.org/grpc"
)
@@ -76,3 +78,10 @@ func CopyAndConvertGRPCStream[I any, O any](r grpc.ClientStream, w grpc.ServerSt
}
}
}
func HandleCrash() {
if r := recover(); r != nil {
logrus.Panic(fmt.Sprintf("Panic: %s", string(debug.Stack())))
panic(r)
}
}