Norman Maurer 211dde4e08 Add support for TCP fallback when we receive a truncated DnsResponse (#9139) ... Motivation: Sometimes DNS responses can be very large which mean they will not fit in a UDP packet. When this is happening the DNS server will set the TC flag (truncated flag) to tell the resolver that the response was truncated. When a truncated response was received we should allow to retry via TCP and use the received response (if possible) as a replacement for the truncated one. See https://tools.ietf.org/html/rfc7766. Modifications: - Add support for TCP fallback by allow to specify a socketChannelFactory / socketChannelType on the DnsNameResolverBuilder. If this is set to something different then null we will try to fallback to TCP. - Add decoder / encoder for TCP - Add unit tests Result: Support for TCP fallback as defined by https://tools.ietf.org/html/rfc7766 when using DnsNameResolver.		2019-05-17 14:47:10 +02:00
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main/java/io/netty/handler/codec/dns	Add support for TCP fallback when we receive a truncated DnsResponse (#9139)	2019-05-17 14:47:10 +02:00
test/java/io/netty/handler/codec/dns	Java 8 migration. Remove ThreadLocalProvider and inline java.util.concurrent.ThreadLocalRandom.current() where necessary. (#8762)	2019-01-22 20:14:28 +01:00