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fix SOCKS5 UDP sniffing accidentially enabled #794

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merged 1 commit into from
Aug 20, 2023
Merged

fix SOCKS5 UDP sniffing accidentially enabled #794

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28 changes: 15 additions & 13 deletions route/router.go
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Original file line number Diff line number Diff line change
Expand Up @@ -770,20 +770,22 @@ func (r *Router) RoutePacketConnection(ctx context.Context, conn N.PacketConn, m
if metadata.Destination.Addr.IsUnspecified() {
metadata.Destination = destination
}
sniffMetadata, _ := sniff.PeekPacket(ctx, buffer.Bytes(), sniff.DomainNameQuery, sniff.QUICClientHello, sniff.STUNMessage)
if sniffMetadata != nil {
metadata.Protocol = sniffMetadata.Protocol
metadata.Domain = sniffMetadata.Domain
if metadata.InboundOptions.SniffOverrideDestination && M.IsDomainName(metadata.Domain) {
metadata.Destination = M.Socksaddr{
Fqdn: metadata.Domain,
Port: metadata.Destination.Port,
if metadata.InboundOptions.SniffEnabled {
sniffMetadata, _ := sniff.PeekPacket(ctx, buffer.Bytes(), sniff.DomainNameQuery, sniff.QUICClientHello, sniff.STUNMessage)
if sniffMetadata != nil {
metadata.Protocol = sniffMetadata.Protocol
metadata.Domain = sniffMetadata.Domain
if metadata.InboundOptions.SniffOverrideDestination && M.IsDomainName(metadata.Domain) {
metadata.Destination = M.Socksaddr{
Fqdn: metadata.Domain,
Port: metadata.Destination.Port,
}
}
if metadata.Domain != "" {
r.logger.DebugContext(ctx, "sniffed packet protocol: ", metadata.Protocol, ", domain: ", metadata.Domain)
} else {
r.logger.DebugContext(ctx, "sniffed packet protocol: ", metadata.Protocol)
}
}
if metadata.Domain != "" {
r.logger.DebugContext(ctx, "sniffed packet protocol: ", metadata.Protocol, ", domain: ", metadata.Domain)
} else {
r.logger.DebugContext(ctx, "sniffed packet protocol: ", metadata.Protocol)
}
}
conn = bufio.NewCachedPacketConn(conn, buffer, destination)
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