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Add hijack_dns for tun

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世界 2022-07-10 09:15:01 +08:00
parent 638f8a52d1
commit 29f78248dc
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GPG key ID: CD109927C34A63C4
15 changed files with 220 additions and 99 deletions
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40
route/router.go
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@ -9,6 +9,7 @@ import (
"net/url"
"os"
"path/filepath"
"reflect"
"strings"
"time"
@ -128,23 +129,28 @@ func NewRouter(ctx context.Context, logger log.Logger, options option.RouteOptio
} else {
detour = dialer.NewDetour(router, server.Detour)
}
serverURL, err := url.Parse(server.Address)
if err != nil {
return nil, err
}
serverAddress := serverURL.Hostname()
_, notIpAddress := netip.ParseAddr(serverAddress)
if server.AddressResolver != "" {
if !transportTagMap[server.AddressResolver] {
return nil, E.New("parse dns server[", tag, "]: address resolver not found: ", server.AddressResolver)
if server.Address != "local" {
serverURL, err := url.Parse(server.Address)
if err != nil {
return nil, err
}
if upstream, exists := dummyTransportMap[server.AddressResolver]; exists {
detour = dns.NewDialerWrapper(detour, C.DomainStrategy(server.AddressStrategy), router.dnsClient, upstream)
} else {
continue
serverAddress := serverURL.Hostname()
if serverAddress == "" {
serverAddress = server.Address
}
_, notIpAddress := netip.ParseAddr(serverAddress)
if server.AddressResolver != "" {
if !transportTagMap[server.AddressResolver] {
return nil, E.New("parse dns server[", tag, "]: address resolver not found: ", server.AddressResolver)
}
if upstream, exists := dummyTransportMap[server.AddressResolver]; exists {
detour = dns.NewDialerWrapper(detour, C.DomainStrategy(server.AddressStrategy), router.dnsClient, upstream)
} else {
continue
}
} else if notIpAddress != nil {
return nil, E.New("parse dns server[", tag, "]: missing address_resolver")
}
} else if notIpAddress != nil {
return nil, E.New("parse dns server[", tag, "]: missing address_resolver")
}
transport, err := dns.NewTransport(ctx, detour, logger, server.Address)
if err != nil {
@ -419,7 +425,7 @@ func (r *Router) RouteConnection(ctx context.Context, conn net.Conn, metadata ad
}
func (r *Router) RoutePacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
if metadata.SniffEnabled && metadata.Destination.Port == 443 {
if metadata.SniffEnabled {
_buffer := buf.StackNewPacket()
defer common.KeepAlive(_buffer)
buffer := common.Dup(_buffer)
@ -489,7 +495,7 @@ func (r *Router) match(ctx context.Context, metadata adapter.InboundContext, def
func (r *Router) matchDNS(ctx context.Context) adapter.DNSTransport {
metadata := adapter.ContextFrom(ctx)
if metadata == nil {
r.dnsLogger.WithContext(ctx).Warn("no context")
r.dnsLogger.WithContext(ctx).Warn("no context: ", reflect.TypeOf(ctx))
return r.defaultTransport
}
for i, rule := range r.dnsRules {