wscript_configure_system_mitkrb5

   1 import Logs, Options, sys
   2
   3 # Check for kerberos
   4 have_gssapi=False
   5
   6 def krb5_define_syslib(conf, lib, deps):
   7     found = 'FOUND_SYSTEMLIB_' + lib
   8     if found in conf.env:
   9         return
  10     conf.SET_TARGET_TYPE(lib, 'SYSLIB')
  11     conf.SET_SYSLIB_DEPS(lib, deps)
  12     conf.env[found] = True
  13
  14 Logs.info("Looking for kerberos features")
  15 conf.find_program('krb5-config.heimdal', var='HEIMDAL_KRB5_CONFIG')
  16
  17 if isinstance(Options.options.with_system_mitkrb5, list):
  18     path_krb5_config = [x+'/bin' for x in Options.options.with_system_mitkrb5]
  19 else:
  20     path_krb5_config = None
  21
  22 conf.find_program('krb5-config', path_list=path_krb5_config, var='KRB5_CONFIG')
  23 if conf.env.KRB5_CONFIG:
  24     conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
  25                package="", uselib_store="KRB5")
  26     krb5_define_syslib(conf, "krb5", conf.env['LIB_KRB5'])
  27
  28     conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
  29                    package="kdb", uselib_store="KDB5")
  30     krb5_define_syslib(conf, "kdb5", conf.env['LIB_KDB5'])
  31
  32     conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
  33                package="gssapi", uselib_store="GSSAPI")
  34     krb5_define_syslib(conf, "gssapi", conf.env['LIB_GSSAPI'])
  35     if 'k5crypto' in conf.env['LIB_GSSAPI']:
  36         krb5_define_syslib(conf, "k5crypto", conf.env['LIB_GSSAPI'])
  37     if 'com_err' in conf.env['LIB_GSSAPI']:
  38         krb5_define_syslib(conf, "com_err", conf.env['LIB_GSSAPI'])
  39     if 'gssapi_krb5' in conf.env['LIB_GSSAPI']:
  40         krb5_define_syslib(conf, "gssapi_krb5", conf.env['LIB_GSSAPI'])
  41
  42     vendor = conf.cmd_and_log("%(path)s --vendor" % dict(path=conf.env.KRB5_CONFIG), dict())
  43     conf.env.KRB5_VENDOR = vendor.strip().lower()
  44     if conf.env.KRB5_VENDOR != 'heimdal':
  45         conf.define('USING_SYSTEM_KRB5', 1)
  46         del conf.env.HEIMDAL_KRB5_CONFIG
  47         kversion = conf.cmd_and_log("%(path)s --version" % dict(path=conf.env.KRB5_CONFIG), dict()).strip()
  48         kversion_split = kversion.split(' ')[-1].split('.')
  49         # drop '-prerelease' suffix
  50         if kversion_split[-1].find('-') > 0:
  51             last_digit = kversion_split[-1].split('-')[0]
  52             kversion_split[-1] = last_digit
  53         kversion_check = map(int, kversion_split)
  54         if kversion_check < [1, 9]:
  55             Logs.error('ERROR: MIT krb5 build requires at least 1.9.0. %s is found and cannot be used' % (kversion))
  56             Logs.error('ERROR: You may try to build with embedded Heimdal Kerebros by not specifying --with-system-mitkrb5')
  57             sys.exit(1)
  58         else:
  59             Logs.info('%s is detected, MIT krb5 build can proceed' % (kversion))
  60
  61 conf.CHECK_CFG(args="--cflags --libs", package="com_err", uselib_store="com_err")
  62 conf.CHECK_FUNCS_IN('_et_list', 'com_err')
  63 conf.CHECK_HEADERS('com_err.h', lib='com_err')
  64 conf.CHECK_HEADERS('kdb.h', lib='kdb5')
  65
  66 conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5')
  67 possible_gssapi_headers="gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_ext.h gssapi/gssapi_krb5.h gssapi/gssapi_oid.h"
  68 conf.CHECK_HEADERS(possible_gssapi_headers, lib='gssapi')
  69
  70 conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto')
  71 conf.CHECK_FUNCS_IN('des_set_key','crypto')
  72 conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1')
  73 conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken')
  74
  75 conf.CHECK_HEADERS('profile.h')
  76
  77 if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi gssapi_krb5'):
  78     have_gssapi=True
  79
  80 if not have_gssapi:
  81     if conf.env.KRB5_CONFIG and conf.env.KRB5_CONFIG != 'heimdal':
  82         Logs.error("ERROR: WAF build with MIT Krb5 requires working GSSAPI implementation")
  83         sys.exit(1)
  84
  85 conf.CHECK_FUNCS_IN('''
  86        gss_wrap_iov
  87        gss_krb5_import_cred
  88        gss_get_name_attribute
  89        gss_mech_krb5
  90        gss_oid_equal
  91        gss_inquire_sec_context_by_oid
  92        gsskrb5_extract_authz_data_from_sec_context
  93        gss_krb5_export_lucid_sec_context
  94        gss_import_cred gss_export_cred
  95        gss_acquire_cred_from
  96        ''', 'gssapi gssapi_krb5')
  97 conf.CHECK_VARIABLE('GSS_KRB5_CRED_NO_CI_FLAGS_X', headers=possible_gssapi_headers)
  98 conf.CHECK_FUNCS_IN('krb5_mk_req_extended krb5_kt_compare', 'krb5')
  99 conf.CHECK_FUNCS('''
 100        krb5_auth_con_getrecvsubkey
 101        krb5_auth_con_getsendsubkey
 102        krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes
 103        krb5_set_default_tgs_ktypes krb5_principal2salt
 104        krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey
 105        krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes
 106        krb5_get_default_in_tkt_etypes krb5_free_data_contents
 107        krb5_principal_get_comp_string krb5_free_unparsed_name
 108        krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init
 109        krb5_krbhst_get_addrinfo
 110        krb5_crypto_init krb5_crypto_destroy
 111        krb5_c_verify_checksum krb5_principal_compare_any_realm
 112        krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request
 113        krb5_get_renewed_creds krb5_free_error_contents
 114        initialize_krb5_error_table krb5_get_init_creds_opt_alloc
 115        krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error
 116        krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype
 117        krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds
 118        krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm
 119        krb5_get_init_creds_keyblock krb5_get_init_creds_keytab
 120        krb5_make_principal krb5_build_principal_alloc_va
 121        krb5_cc_get_lifetime krb5_cc_retrieve_cred
 122        krb5_cc_copy_creds
 123        krb5_free_checksum_contents krb5_c_make_checksum krb5_create_checksum
 124        krb5_config_get_bool_default krb5_get_profile
 125        krb5_data_copy
 126        krb5_init_keyblock krb5_principal_set_realm krb5_principal_get_type
 127        krb5_principal_set_type
 128        krb5_warnx
 129        krb5_get_prompt_types
 130        ''',
 131      lib='krb5 k5crypto')
 132 conf.CHECK_DECLS('''krb5_get_credentials_for_user
 133                     krb5_auth_con_set_req_cksumtype''',
 134                     headers='krb5.h', always=True)
 135 conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h')
 136 conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h')
 137 conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h')
 138 conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h')
 139 conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h')
 140 conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h')
 141 conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h')
 142 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key', headers='krb5.h',
 143                             define='HAVE_KRB5_KEYTAB_ENTRY_KEY')
 144 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock', headers='krb5.h',
 145                             define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK')
 146 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic', headers='krb5.h',
 147                             define='HAVE_MAGIC_IN_KRB5_ADDRESS')
 148 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype', headers='krb5.h',
 149                             define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS')
 150 conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket', headers='krb5.h',
 151                             define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ')
 152 conf.CHECK_STRUCTURE_MEMBER('krb5_prompt', 'type', headers='krb5.h',
 153                             define='HAVE_KRB5_PROMPT_TYPE')
 154
 155 conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h')
 156
 157 conf.CHECK_CODE('''
 158        krb5_context ctx;
 159        krb5_get_init_creds_opt *opt = NULL;
 160        krb5_get_init_creds_opt_free(ctx, opt);
 161        ''',
 162     'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT',
 163     headers='krb5.h', link=False,
 164     msg="Checking whether krb5_get_init_creds_opt_free takes a context argument")
 165 conf.CHECK_CODE('''
 166        const krb5_data *pkdata;
 167        krb5_context context;
 168        krb5_principal principal;
 169        pkdata = krb5_princ_component(context, principal, 0);
 170        ''',
 171     'HAVE_KRB5_PRINC_COMPONENT',
 172     headers='krb5.h', lib='krb5',
 173     msg="Checking whether krb5_princ_component is available")
 174
 175 conf.CHECK_CODE('''
 176        int main(void) {
 177        char buf[256];
 178        krb5_enctype_to_string(1, buf, 256);
 179        return 0;
 180        }''',
 181     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG',
 182     headers='krb5.h', lib='krb5 k5crypto',
 183     addmain=False, cflags=conf.env['WERROR_CFLAGS'],
 184     msg="Checking whether krb5_enctype_to_string takes size_t argument")
 185
 186 conf.CHECK_CODE('''
 187        int main(void) {
 188        krb5_context context = NULL;
 189        char *str = NULL;
 190        krb5_enctype_to_string(context, 1, &str);
 191        if (str) free (str);
 192        return 0;
 193        }''',
 194     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG',
 195     headers='krb5.h stdlib.h', lib='krb5',
 196     addmain=False, cflags=conf.env['WERROR_CFLAGS'],
 197     msg="Checking whether krb5_enctype_to_string takes krb5_context argument")
 198 conf.CHECK_CODE('''
 199        int main(void) {
 200        krb5_context ctx = NULL;
 201        krb5_principal princ = NULL;
 202        const char *str = krb5_princ_realm(ctx, princ)->data;
 203        return 0;
 204        }''',
 205     'HAVE_KRB5_PRINC_REALM',
 206     headers='krb5.h', lib='krb5',
 207     addmain=False,
 208     msg="Checking whether the macro krb5_princ_realm is defined")
 209 conf.CHECK_CODE('''
 210        int main(void) {
 211            krb5_context context;
 212            krb5_principal principal;
 213            const char *realm; realm = krb5_principal_get_realm(context, principal);
 214            return 0;
 215        }''',
 216     'HAVE_KRB5_PRINCIPAL_GET_REALM',
 217     headers='krb5.h', lib='krb5',
 218     addmain=False,
 219     msg="Checking whether krb5_principal_get_realm is defined")
 220 conf.CHECK_CODE('''
 221        krb5_enctype enctype;
 222        enctype = ENCTYPE_ARCFOUR_HMAC_MD5;
 223        ''',
 224     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5',
 225     headers='krb5.h', lib='krb5',
 226     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available");
 227 conf.CHECK_CODE('''
 228        krb5_enctype enctype;
 229        enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56;
 230        ''',
 231     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56',
 232     headers='krb5.h', lib='krb5',
 233     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available");
 234 conf.CHECK_CODE('''
 235        krb5_keytype keytype;
 236        keytype = KEYTYPE_ARCFOUR_56;
 237        ''',
 238     '_HAVE_KEYTYPE_ARCFOUR_56',
 239     headers='krb5.h', lib='krb5',
 240     msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available");
 241 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 242     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1')
 243 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 244     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1')
 245
 246 conf.CHECK_CODE('''
 247        krb5_enctype enctype;
 248        enctype = ENCTYPE_ARCFOUR_HMAC;
 249        ''',
 250     'HAVE_ENCTYPE_ARCFOUR_HMAC',
 251     headers='krb5.h', lib='krb5',
 252     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available");
 253 conf.CHECK_CODE('''
 254        krb5_enctype enctype;
 255        enctype = ENCTYPE_ARCFOUR_HMAC_EXP;
 256        ''',
 257     'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP',
 258     headers='krb5.h', lib='krb5',
 259     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available");
 260
 261 conf.CHECK_CODE('''
 262        krb5_context context;
 263        krb5_keytab keytab;
 264        krb5_init_context(&context);
 265        return krb5_kt_resolve(context, "WRFILE:api", &keytab);
 266        ''',
 267     'HAVE_WRFILE_KEYTAB',
 268     headers='krb5.h', lib='krb5', execute=True,
 269     msg="Checking whether the WRFILE:-keytab is supported");
 270 # Check for KRB5_DEPRECATED handling
 271 conf.CHECK_CODE('''#define KRB5_DEPRECATED 1
 272        #include <krb5.h>''',
 273    'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False,
 274     link=False,
 275     msg="Checking for KRB5_DEPRECATED define taking an identifier")
 276
 277 conf.CHECK_CODE('''
 278        krb5_creds creds;
 279        creds.flags.b.initial = 0;
 280        ''',
 281     'HAVE_FLAGS_IN_KRB5_CREDS',
 282     headers='krb5.h', lib='krb5', execute=False,
 283     msg="Checking whether krb5_creds have flags property")