tree 31108f81c89cc35997ac2cdef30a939068af6120
parent 1bd140ea3fab97ccd37adf9d0c106d52af9e53fa
author Olivier Houchard <ohouchard@haproxy.com> 1561723833 +0200
committer Willy Tarreau <w@1wt.eu> 1561989911 +0200
encoding latin1

BUG/MEDIUM: ssl: Don't attempt to set alpn if we're not using SSL.

Checks use ssl_sock_set_alpn() to set the ALPN if check-alpn is used, however
check-alpn failed to check if the connection was indeed using SSL, and thus,
would crash if check-alpn was used on a non-SSL connection. Fix this by
making sure the connection uses SSL before attempting to set the ALPN.

This should be backported to 2.0 and 1.9.

(cherry picked from commit e488ea865a433d93efcb14c0c602918070c6b208)
Signed-off-by: Willy Tarreau <w@1wt.eu>