wscript_configure_system_gnutls

   1 from waflib import Logs
   2 import os
   3
   4 def parse_version(v):
   5     return tuple(map(int, (v.split("."))))
   6
   7 gnutls_min_required_version = "3.6.13"
   8
   9 conf.CHECK_FUNCS('getrandom', headers='sys/random.h')
  10 if not conf.CONFIG_SET('HAVE_GETRANDOM'):
  11    gnutls_min_required_version = "3.7.2"
  12
  13 gnutls_required_version = gnutls_min_required_version
  14
  15 conf.CHECK_CFG(package='gnutls',
  16                args=('"gnutls >= %s" --cflags --libs' % gnutls_required_version),
  17                      msg='Checking for GnuTLS >= %s' % gnutls_required_version,
  18                      mandatory=True)
  19
  20 gnutls_version_str = conf.cmd_and_log(conf.env.PKGCONFIG + ['--modversion', 'gnutls']).strip()
  21 gnutls_version = parse_version(gnutls_version_str)
  22
  23 # Define gnutls as a system library
  24 conf.SET_TARGET_TYPE('gnutls', 'SYSLIB')
  25
  26 # Check for gnutls_pkcs7_get_embedded_data_oid (>= 3.5.5) required by libmscat
  27 conf.CHECK_FUNCS_IN('gnutls_pkcs7_get_embedded_data_oid', 'gnutls')
  28
  29 # Check for gnutls_set_default_priority_append (>= 3.6.3)
  30 conf.CHECK_FUNCS_IN('gnutls_set_default_priority_append', 'gnutls')
  31
  32 # Check for gnutls_pbkdf2 (>= 3.6.13)
  33 conf.CHECK_FUNCS_IN('gnutls_pbkdf2', 'gnutls')
  34
  35 # Check for gnutls_aead_cipher_encryptv2
  36 #
  37 # This is available since version 3.6.10, but 3.6.10 has a bug which got fixed
  38 # in 3.6.11, see:
  39 #
  40 #     https://gitlab.com/gnutls/gnutls/-/merge_requests/1085
  41 #
  42 # 3.6.10 - 3.6.14 have a severe memory leak with AES-CCM
  43 #     https://gitlab.com/gnutls/gnutls/-/merge_requests/1278
  44 if (gnutls_version > parse_version('3.6.10')):
  45     if conf.CHECK_FUNCS_IN('gnutls_aead_cipher_encryptv2', 'gnutls'):
  46         conf.DEFINE('ALLOW_GNUTLS_AEAD_CIPHER_ENCRYPTV2_AES_GCM', 1)
  47         if (gnutls_version > parse_version('3.6.14')):
  48             conf.DEFINE('ALLOW_GNUTLS_AEAD_CIPHER_ENCRYPTV2_AES_CCM', 1)
  49
  50 if (gnutls_version < parse_version('3.5.2')):
  51     conf.DEFINE('HAVE_GNUTLS_AEAD_CIPHER_DECRYPT_PTEXT_LEN_BUG', 1)
  52
  53 # Check if gnutls has fips mode support
  54 # gnutls_fips140_mode_enabled() is available since 3.3.0
  55 fragment = '''
  56 #include <gnutls/gnutls.h>
  57 #include <stdlib.h>
  58
  59 int main(void)
  60 {
  61     unsigned int ok;
  62
  63     ok = gnutls_fips140_mode_enabled();
  64
  65     return !ok;
  66 }
  67 '''
  68
  69 os.environ['GNUTLS_FORCE_FIPS_MODE'] = '1'
  70 conf.CHECK_CODE(fragment,
  71                 'HAVE_GNUTLS_FIPS_MODE_SUPPORTED',
  72                 execute=True,
  73                 addmain=False,
  74                 add_headers=False,
  75                 lib='gnutls',
  76                 msg='Checking for gnutls fips mode support')
  77 del os.environ['GNUTLS_FORCE_FIPS_MODE']
  78
  79 if conf.CHECK_VALUEOF('GNUTLS_CIPHER_AES_128_CFB8', headers='gnutls/gnutls.h', lib='gnutls'):
  80     conf.DEFINE('HAVE_GNUTLS_AES_CFB8', 1)
  81 else:
  82     Logs.warn('No gnutls support for AES CFB8')
  83
  84 if conf.CHECK_VALUEOF('GNUTLS_MAC_AES_CMAC_128', headers='gnutls/gnutls.h', lib='gnutls'):
  85     conf.DEFINE('HAVE_GNUTLS_AES_CMAC', 1)
  86 else:
  87     Logs.warn('No gnutls support for AES CMAC')