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Implement IETF protocol

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Star Brilliant
2018-03-21 02:01:56 +08:00
parent 64664a59b8
commit 2ab2120a39
3 changed files with 33 additions and 32 deletions
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32
doh-server/ietf.go
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@@ -90,23 +90,23 @@ func (s *Server) parseRequestIETF(w http.ResponseWriter, r *http.Request) *DNSRe
ednsClientFamily := uint16(0)
ednsClientAddress := s.findClientIP(r)
ednsClientNetmask := uint8(255)
if ednsClientAddress == nil {
ednsClientNetmask = 0
} else if ipv4 := ednsClientAddress.To4(); ipv4 != nil {
ednsClientFamily = 1
ednsClientAddress = ipv4
ednsClientNetmask = 24
} else {
ednsClientFamily = 2
ednsClientNetmask = 48
if ednsClientAddress != nil {
if ipv4 := ednsClientAddress.To4(); ipv4 != nil {
ednsClientFamily = 1
ednsClientAddress = ipv4
ednsClientNetmask = 24
} else {
ednsClientFamily = 2
ednsClientNetmask = 48
}
edns0Subnet = new(dns.EDNS0_SUBNET)
edns0Subnet.Code = dns.EDNS0SUBNET
edns0Subnet.Family = ednsClientFamily
edns0Subnet.SourceNetmask = ednsClientNetmask
edns0Subnet.SourceScope = 0
edns0Subnet.Address = ednsClientAddress
opt.Option = append(opt.Option, edns0Subnet)
}
edns0Subnet = new(dns.EDNS0_SUBNET)
edns0Subnet.Code = dns.EDNS0SUBNET
edns0Subnet.Family = ednsClientFamily
edns0Subnet.SourceNetmask = ednsClientNetmask
edns0Subnet.SourceScope = 0
edns0Subnet.Address = ednsClientAddress
opt.Option = append(opt.Option, edns0Subnet)
}
return &DNSRequest{