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Drop A or AAAA requests more safely #85

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Drop A or AAAA requests more safely #85

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79ccef8
Drop A or AAAA requests more safely
Cuthead Feb 8, 2026
3423e0a
switch _qtype if UseVaddr
Cuthead Feb 8, 2026
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14 changes: 12 additions & 2 deletions phantomtcp/dns.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1317,8 +1317,18 @@ func NSRequest(request []byte, cache bool) (uint32, []byte) {
_request := request
_qtype := uint16(qtype)
if u.RawQuery != "" {
if records.ALPN&HINT_IPV6 != 0 {
_qtype = 28
if UseVaddr {
if records.ALPN&HINT_IPV4 != 0 && qtype == 28 {
_qtype = 1
} else if records.ALPN&HINT_IPV6 != 0 && qtype == 1 {
_qtype = 28
}
} else {
if records.ALPN&HINT_IPV4 != 0 && qtype == 28 {
return records.Index, records.BuildResponse(request, qtype, 0)
} else if records.ALPN&HINT_IPV6 != 0 && qtype == 1 {
return records.Index, records.BuildResponse(request, qtype, 0)
}
}

options = ParseOptions(u.RawQuery)
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