From 8daa83a594a2e98f39d764422bfbdbc62c9efd44 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 19:20:00 +0200
Subject: Adding upstream version 2:4.20.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 wscript_configure_system_gnutls | 62 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 wscript_configure_system_gnutls

(limited to 'wscript_configure_system_gnutls')

diff --git a/wscript_configure_system_gnutls b/wscript_configure_system_gnutls
new file mode 100644
index 0000000..1983a0c
--- /dev/null
+++ b/wscript_configure_system_gnutls
@@ -0,0 +1,62 @@
+import os
+
+def parse_version(v):
+    return tuple(map(int, (v.split("."))))
+
+gnutls_min_required_version = "3.6.13"
+
+conf.CHECK_FUNCS('getrandom', headers='sys/random.h')
+if not conf.CONFIG_SET('HAVE_GETRANDOM'):
+   gnutls_min_required_version = "3.7.2"
+
+gnutls_required_version = gnutls_min_required_version
+
+conf.CHECK_CFG(package='gnutls',
+               args=('"gnutls >= %s" --cflags --libs' % gnutls_required_version),
+                     msg='Checking for GnuTLS >= %s' % gnutls_required_version,
+                     mandatory=True)
+
+gnutls_version_str = conf.cmd_and_log(conf.env.PKGCONFIG + ['--modversion', 'gnutls']).strip()
+gnutls_version = parse_version(gnutls_version_str)
+
+# Define gnutls as a system library
+conf.SET_TARGET_TYPE('gnutls', 'SYSLIB')
+
+# Check for gnutls_aead_cipher_encryptv2
+#
+# This is available since version 3.6.10, but 3.6.10 has a bug which got fixed
+# in 3.6.11, see:
+#
+#     https://gitlab.com/gnutls/gnutls/-/merge_requests/1085
+#
+# 3.6.10 - 3.6.14 have a severe memory leak with AES-CCM
+#     https://gitlab.com/gnutls/gnutls/-/merge_requests/1278
+if (gnutls_version > parse_version('3.6.14')):
+      conf.DEFINE('ALLOW_GNUTLS_AEAD_CIPHER_ENCRYPTV2_AES_CCM', 1)
+
+# Check if gnutls has fips mode support
+# gnutls_fips140_mode_enabled() is available since 3.3.0
+fragment = '''
+#include <gnutls/gnutls.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    unsigned int ok;
+
+    ok = gnutls_fips140_mode_enabled();
+
+    return !ok;
+}
+'''
+
+os.environ['GNUTLS_FORCE_FIPS_MODE'] = '1'
+conf.CHECK_CODE(fragment,
+                'HAVE_GNUTLS_FIPS_MODE_SUPPORTED',
+                execute=True,
+                addmain=False,
+                add_headers=False,
+                lib='gnutls',
+                msg='Checking for gnutls fips mode support')
+del os.environ['GNUTLS_FORCE_FIPS_MODE']
+
-- 
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