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cmd/lopower: add verbose-dns

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This commit is contained in:
Anton Tolchanov 2025-05-05 11:34:04 +01:00
parent c8deed69ae
commit e83fe9a762
1 changed files with 11 additions and 5 deletions
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16
cmd/lopower/lopower.go
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@ -67,6 +67,7 @@ var (
printConfig = flag.Bool("print-config", true, "print the client's WireGuard configuration to stdout on startup") printConfig = flag.Bool("print-config", true, "print the client's WireGuard configuration to stdout on startup")
includeV4 = flag.Bool("include-v4", true, "include IPv4 (CGNAT) in the WireGuard configuration; incompatible with some carriers. IPv6 is always included.") includeV4 = flag.Bool("include-v4", true, "include IPv4 (CGNAT) in the WireGuard configuration; incompatible with some carriers. IPv6 is always included.")
verbosePackets = flag.Bool("verbose-packets", false, "log packet contents") verbosePackets = flag.Bool("verbose-packets", false, "log packet contents")
verboseDNS = flag.Bool("verbose-dns", false, "log DNS queries")
) )
type config struct { type config struct {
@ -680,16 +681,21 @@ func (lp *lpServer) filteredDNSQuery(ctx context.Context, q []byte, family strin
if err != nil { if err != nil {
return nil, err return nil, err
} }
if *includeV4 {
return origRes, nil
}
// Filter out *.ts.net A records.
var msg dnsmessage.Message var msg dnsmessage.Message
if err := msg.Unpack(origRes); err != nil { if err := msg.Unpack(origRes); err != nil {
return nil, err return nil, err
} }
if *verboseDNS {
log.Printf("[v] DNS: %s", msg.GoString())
}
if *includeV4 {
return origRes, nil
}
// Filter out *.ts.net A records.
newAnswers := msg.Answers[:0] newAnswers := msg.Answers[:0]
for _, a := range msg.Answers { for _, a := range msg.Answers {
name := a.Header.Name.String() name := a.Header.Name.String()