tree f5ff6ecb0df165b7e906cb17c93b14467b50fe72
parent 03b9d8ba4ac3ad5dabf691693ae921e4e96e95ee
author Christopher Faulet <cfaulet@haproxy.com> 1553769699 +0100
committer Christopher Faulet <cfaulet@haproxy.com> 1555099613 +0200

BUG/MEDIUM: htx: Fix the process of HTTP CONNECT with h2 connections

In HTX, the HTTP tunneling does not work if h1 and h2 are mixed (an h1 client
sending requests to an h2 server or this opposite) because the h1 multiplexer
always adds an EOM before switching it to tunnel mode. The h2 multiplexer
interprets it as an end of stream, closing the stream as for any other
transaction.

To make it works again, we need to swith to the tunnel mode without emitting any
EOM blocks. Because of that, HTX analyzers have been updated to switch the
transaction to tunnel mode before end of the message (because there is no end of
message...).

To be consistent, the protocol switching is also handled the same way even
though the 101 responses are not supported in h2.

This patch must be backported to 1.9.