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Add Fake DNS support (#309)

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Co-authored-by: Xiaokang Wang <xiaokangwang@outlook.com>
Co-authored-by: loyalsoldier <10487845+Loyalsoldier@users.noreply.github.com>
Co-authored-by: kslr <kslrwang@gmail.com>
This commit is contained in:
yuhan6665 2021-03-06 23:39:50 -05:00 • committed by GitHub
parent db32ce6fd9
commit f50eff5ebb
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GPG key ID: 4AEE18F83AFDEB23
43 changed files with 1351 additions and 301 deletions
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9
app/dns/udpns.go
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@ -54,7 +54,7 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
Execute: s.Cleanup,
}
s.udpServer = udp.NewDispatcher(dispatcher, s.HandleResponse)
newError("DNS: created udp client inited for ", address.NetAddr()).AtInfo().WriteToLog()
newError("DNS: created UDP client initialized for ", address.NetAddr()).AtInfo().WriteToLog()
return s
}
@ -180,7 +180,7 @@ func (s *ClassicNameServer) addPendingRequest(req *dnsRequest) {
s.requests[id] = *req
}
func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option IPOption) {
func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option dns_feature.IPOption) {
newError(s.name, " querying DNS for: ", domain).AtDebug().WriteToLog(session.ExportIDToError(ctx))
reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP))
@ -206,7 +206,7 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option
}
}
func (s *ClassicNameServer) findIPsForDomain(domain string, option IPOption) ([]net.IP, error) {
func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
s.RLock()
record, found := s.ips[domain]
s.RUnlock()
@ -244,7 +244,8 @@ func (s *ClassicNameServer) findIPsForDomain(domain string, option IPOption) ([]
return nil, dns_feature.ErrEmptyResponse
}
func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option IPOption) ([]net.IP, error) {
// QueryIP implements Server.
func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, error) {
fqdn := Fqdn(domain)
ips, err := s.findIPsForDomain(fqdn, option)