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Ubuntu 20.04 needs this change in order to still allow you to enable

Browse Source 
TLSv1.0 or TLSv1.1. Otherwise it is impossible to enable by the application.

We are still going to turn off TLSv1.0 and TLSv1.1 by the end of this year
by default. Ubuntu 20.04 is just a couple of months too early. See also
the various browsers who postponed disabling TLSv1.0/TLSv1.1.

Also, regardless of the above, we want the admins running the IRC server
be able to control this and not having such a breaking change be dependant
on some distro default settings.
This commit is contained in:
Bram Matthys
2020-04-18 12:40:45 +02:00
parent 498f65aaad
commit f419a61f94
5 changed files with 90 additions and 2 deletions
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autoconf/m4/unreal.m4
+20
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@@ -252,3 +252,23 @@ else
AC_MSG_RESULT([no])
fi
])
AC_DEFUN([CHECK_SSL_CTX_SET_SECURITY_LEVEL],
[
AC_MSG_CHECKING([for SSL_CTX_set_security_level in SSL library])
AC_LANG_PUSH(C)
SAVE_LIBS="$LIBS"
LIBS="$LIBS $CRYPTOLIB"
AC_TRY_LINK([#include <openssl/ssl.h>],
[SSL_CTX *ctx = NULL; SSL_CTX_set_security_level(ctx, 1);],
has_function=1,
has_function=0)
LIBS="$SAVE_LIBS"
AC_LANG_POP(C)
if test $has_function = 1; then
AC_MSG_RESULT([yes])
AC_DEFINE([HAS_SSL_CTX_SET_SECURITY_LEVEL], [], [Define if ssl library has SSL_CTX_set_security_level])
else
AC_MSG_RESULT([no])
fi
])