wscript_configure_system_mitkrb5

   1 import sys
   2 from waflib import Logs, Options, Errors
   3
   4 # Check for kerberos
   5 have_gssapi=False
   6
   7 krb5_min_required_version = "1.9"
   8
   9 # Requried versions
  10 krb5_required_version = krb5_min_required_version
  11 if conf.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'):
  12     krb5_required_version = "1.15.1"
  13
  14 def parse_version(v):
  15     return tuple(map(int, (v.split("."))))
  16
  17 def krb5_define_syslib(conf, lib, deps):
  18     found = 'FOUND_SYSTEMLIB_' + lib
  19     if found in conf.env:
  20         return
  21     conf.SET_TARGET_TYPE(lib, 'SYSLIB')
  22     conf.SET_SYSLIB_DEPS(lib, deps)
  23     conf.env[found] = True
  24
  25 Logs.info("Looking for kerberos features")
  26 conf.find_program('krb5-config.heimdal', var='HEIMDAL_KRB5_CONFIG')
  27
  28 if isinstance(Options.options.with_system_mitkrb5, list):
  29     path_krb5_config = [x+'/bin' for x in Options.options.with_system_mitkrb5]
  30 else:
  31     path_krb5_config = None
  32
  33 conf.find_program('krb5-config', path_list=path_krb5_config, var='KRB5_CONFIG')
  34 if conf.env.KRB5_CONFIG:
  35     conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
  36                package="", uselib_store="KRB5")
  37     krb5_define_syslib(conf, "krb5", conf.env['LIB_KRB5'])
  38
  39     conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
  40                    package="kadm-server", uselib_store="KADM-SERVER")
  41     conf.CHECK_FUNCS_IN('kadm5_init', 'kadm5srv_mit')
  42
  43     conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
  44                    package="kdb", uselib_store="KDB5")
  45     krb5_define_syslib(conf, "kdb5", conf.env['LIB_KDB5'])
  46
  47     conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
  48                package="gssapi", uselib_store="GSSAPI")
  49     krb5_define_syslib(conf, "gssapi", conf.env['LIB_GSSAPI'])
  50     if 'k5crypto' in conf.env['LIB_GSSAPI']:
  51         krb5_define_syslib(conf, "k5crypto", conf.env['LIB_GSSAPI'])
  52     if 'com_err' in conf.env['LIB_GSSAPI']:
  53         krb5_define_syslib(conf, "com_err", conf.env['LIB_GSSAPI'])
  54     if 'gssapi_krb5' in conf.env['LIB_GSSAPI']:
  55         krb5_define_syslib(conf, "gssapi_krb5", conf.env['LIB_GSSAPI'])
  56
  57     vendor = conf.cmd_and_log(conf.env.KRB5_CONFIG+['--vendor'])
  58     conf.env.KRB5_VENDOR = vendor.strip().lower()
  59     if conf.env.KRB5_VENDOR == 'heimdal':
  60         raise Errors.WafError('--with-system-mitkrb5 cannot be used with system heimdal')
  61
  62     conf.define('USING_SYSTEM_KRB5', 1)
  63     del conf.env.HEIMDAL_KRB5_CONFIG
  64     krb5_conf_version = conf.cmd_and_log(conf.env.KRB5_CONFIG+['--version']).strip()
  65
  66     krb5_version = krb5_conf_version.split()[-1]
  67
  68     # drop '-prerelease' suffix
  69     if krb5_version.find('-') > 0:
  70         krb5_version = krb5_version.split("-")[0]
  71
  72     if parse_version(krb5_version) < parse_version(krb5_required_version):
  73         Logs.error('ERROR: The MIT KRB5 build with Samba AD requires at least %s. %s has been found and cannot be used' % (krb5_required_version, krb5_version))
  74         Logs.error('ERROR: If you want to just build Samba FS (File Server) use the option --without-ad-dc which requires version %s' % (krb5_min_required_version))
  75         Logs.error('ERROR: You may try to build with embedded Heimdal Kerberos by not specifying --with-system-mitkrb5')
  76         sys.exit(1)
  77     else:
  78         Logs.info('MIT Kerberos %s detected, MIT krb5 build can proceed' % (krb5_version))
  79
  80     if parse_version(krb5_version) < parse_version('1.18'):
  81         conf.DEFINE('HAVE_MIT_KRB5_PRE_1_18', 1)
  82
  83 conf.CHECK_CFG(args="--cflags --libs", package="com_err", uselib_store="com_err")
  84 conf.CHECK_FUNCS_IN('_et_list', 'com_err')
  85 conf.CHECK_HEADERS('com_err.h', lib='com_err')
  86 conf.CHECK_HEADERS('kdb.h', lib='kdb5')
  87
  88 conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5')
  89 conf.CHECK_HEADERS('krb5.h krb5/localauth_plugin.h', lib='krb5')
  90 possible_gssapi_headers="gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_ext.h gssapi/gssapi_krb5.h gssapi/gssapi_oid.h"
  91 conf.CHECK_HEADERS(possible_gssapi_headers, lib='gssapi')
  92
  93 conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto')
  94 conf.CHECK_FUNCS_IN('des_set_key','crypto')
  95 conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1')
  96 conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken')
  97
  98 conf.CHECK_HEADERS('profile.h')
  99
 100 if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi gssapi_krb5'):
 101     have_gssapi=True
 102
 103 if not have_gssapi:
 104     if conf.env.KRB5_CONFIG and conf.env.KRB5_CONFIG != 'heimdal':
 105         Logs.error("ERROR: WAF build with MIT Krb5 requires working GSSAPI implementation")
 106         sys.exit(1)
 107
 108 conf.CHECK_FUNCS_IN('''
 109        gss_wrap_iov
 110        gss_krb5_import_cred
 111        gss_get_name_attribute
 112        gss_mech_krb5
 113        gss_oid_equal
 114        gss_inquire_sec_context_by_oid
 115        gsskrb5_extract_authz_data_from_sec_context
 116        gss_krb5_export_lucid_sec_context
 117        gss_import_cred gss_export_cred
 118        gss_acquire_cred_from
 119        ''', 'gssapi gssapi_krb5')
 120 conf.CHECK_VARIABLE('GSS_KRB5_CRED_NO_CI_FLAGS_X', headers=possible_gssapi_headers)
 121 conf.CHECK_FUNCS_IN('krb5_mk_req_extended krb5_kt_compare', 'krb5')
 122 conf.CHECK_FUNCS('''
 123        krb5_auth_con_getrecvsubkey
 124        krb5_auth_con_getsendsubkey
 125        krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes
 126        krb5_set_default_tgs_ktypes krb5_principal2salt
 127        krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey
 128        krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes
 129        krb5_get_default_in_tkt_etypes krb5_free_data_contents
 130        krb5_principal_get_comp_string krb5_free_unparsed_name
 131        krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init
 132        krb5_krbhst_get_addrinfo
 133        krb5_crypto_init krb5_crypto_destroy
 134        krb5_c_verify_checksum krb5_principal_compare_any_realm
 135        krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request
 136        krb5_get_renewed_creds krb5_free_error_contents
 137        initialize_krb5_error_table krb5_get_init_creds_opt_alloc
 138        krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error
 139        krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype
 140        krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds
 141        krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm
 142        krb5_get_init_creds_keyblock krb5_get_init_creds_keytab
 143        krb5_make_principal krb5_build_principal_alloc_va
 144        krb5_cc_get_lifetime krb5_cc_retrieve_cred
 145        krb5_cc_copy_creds
 146        krb5_free_checksum_contents krb5_c_make_checksum krb5_create_checksum
 147        krb5_config_get_bool_default krb5_get_profile
 148        krb5_data_copy
 149        krb5_init_keyblock krb5_principal_set_realm krb5_principal_get_type
 150        krb5_principal_set_type
 151        krb5_warnx
 152        krb5_get_prompt_types
 153        ''',
 154      lib='krb5 k5crypto')
 155 conf.CHECK_DECLS('''krb5_get_credentials_for_user
 156                     krb5_auth_con_set_req_cksumtype''',
 157                     headers='krb5.h', always=True)
 158 conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h')
 159 conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h')
 160 conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h')
 161 conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h')
 162 conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h')
 163 conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h')
 164 conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h')
 165 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key', headers='krb5.h',
 166                             define='HAVE_KRB5_KEYTAB_ENTRY_KEY')
 167 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock', headers='krb5.h',
 168                             define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK')
 169 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic', headers='krb5.h',
 170                             define='HAVE_MAGIC_IN_KRB5_ADDRESS')
 171 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype', headers='krb5.h',
 172                             define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS')
 173 conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket', headers='krb5.h',
 174                             define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ')
 175 conf.CHECK_STRUCTURE_MEMBER('krb5_prompt', 'type', headers='krb5.h',
 176                             define='HAVE_KRB5_PROMPT_TYPE')
 177
 178 conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h')
 179
 180 conf.CHECK_CODE('''
 181        krb5_context ctx;
 182        krb5_get_init_creds_opt *opt = NULL;
 183        krb5_get_init_creds_opt_free(ctx, opt);
 184        ''',
 185     'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT',
 186     headers='krb5.h', link=False,
 187     msg="Checking whether krb5_get_init_creds_opt_free takes a context argument")
 188 conf.CHECK_CODE('''
 189        const krb5_data *pkdata;
 190        krb5_context context;
 191        krb5_principal principal;
 192        pkdata = krb5_princ_component(context, principal, 0);
 193        ''',
 194     'HAVE_KRB5_PRINC_COMPONENT',
 195     headers='krb5.h', lib='krb5',
 196     msg="Checking whether krb5_princ_component is available")
 197
 198 conf.CHECK_CODE('''
 199        int main(void) {
 200        char buf[256];
 201        krb5_enctype_to_string(1, buf, 256);
 202        return 0;
 203        }''',
 204     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG',
 205     headers='krb5.h', lib='krb5 k5crypto',
 206     addmain=False, cflags=conf.env['WERROR_CFLAGS'],
 207     msg="Checking whether krb5_enctype_to_string takes size_t argument")
 208
 209 conf.CHECK_CODE('''
 210        int main(void) {
 211        krb5_context context = NULL;
 212        char *str = NULL;
 213        krb5_enctype_to_string(context, 1, &str);
 214        if (str) free (str);
 215        return 0;
 216        }''',
 217     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG',
 218     headers='krb5.h stdlib.h', lib='krb5',
 219     addmain=False, cflags=conf.env['WERROR_CFLAGS'],
 220     msg="Checking whether krb5_enctype_to_string takes krb5_context argument")
 221 conf.CHECK_CODE('''
 222        int main(void) {
 223        krb5_context ctx = NULL;
 224        krb5_principal princ = NULL;
 225        const char *str = krb5_princ_realm(ctx, princ)->data;
 226        return 0;
 227        }''',
 228     'HAVE_KRB5_PRINC_REALM',
 229     headers='krb5.h', lib='krb5',
 230     addmain=False,
 231     msg="Checking whether the macro krb5_princ_realm is defined")
 232 conf.CHECK_CODE('''
 233        int main(void) {
 234            krb5_context context;
 235            krb5_principal principal;
 236            const char *realm; realm = krb5_principal_get_realm(context, principal);
 237            return 0;
 238        }''',
 239     'HAVE_KRB5_PRINCIPAL_GET_REALM',
 240     headers='krb5.h', lib='krb5',
 241     addmain=False,
 242     msg="Checking whether krb5_principal_get_realm is defined")
 243 conf.CHECK_CODE('''
 244        krb5_enctype enctype;
 245        enctype = ENCTYPE_ARCFOUR_HMAC_MD5;
 246        ''',
 247     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5',
 248     headers='krb5.h', lib='krb5',
 249     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available");
 250 conf.CHECK_CODE('''
 251        krb5_enctype enctype;
 252        enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56;
 253        ''',
 254     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56',
 255     headers='krb5.h', lib='krb5',
 256     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available");
 257 conf.CHECK_CODE('''
 258        krb5_keytype keytype;
 259        keytype = KEYTYPE_ARCFOUR_56;
 260        ''',
 261     '_HAVE_KEYTYPE_ARCFOUR_56',
 262     headers='krb5.h', lib='krb5',
 263     msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available");
 264 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 265     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1')
 266 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 267     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1')
 268
 269 conf.CHECK_CODE('''
 270        krb5_enctype enctype;
 271        enctype = ENCTYPE_ARCFOUR_HMAC;
 272        ''',
 273     'HAVE_ENCTYPE_ARCFOUR_HMAC',
 274     headers='krb5.h', lib='krb5',
 275     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available");
 276 conf.CHECK_CODE('''
 277        krb5_enctype enctype;
 278        enctype = ENCTYPE_ARCFOUR_HMAC_EXP;
 279        ''',
 280     'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP',
 281     headers='krb5.h', lib='krb5',
 282     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available");
 283
 284 conf.CHECK_CODE('''
 285        krb5_context context;
 286        krb5_keytab keytab;
 287        krb5_init_context(&context);
 288        return krb5_kt_resolve(context, "WRFILE:api", &keytab);
 289        ''',
 290     'HAVE_WRFILE_KEYTAB',
 291     headers='krb5.h', lib='krb5', execute=True,
 292     msg="Checking whether the WRFILE -keytab is supported");
 293 # Check for KRB5_DEPRECATED handling
 294 conf.CHECK_CODE('''#define KRB5_DEPRECATED 1
 295        #include <krb5.h>''',
 296    'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False,
 297     link=False,
 298     msg="Checking for KRB5_DEPRECATED define taking an identifier")
 299
 300 conf.CHECK_CODE('''
 301        krb5_creds creds;
 302        creds.flags.b.initial = 0;
 303        ''',
 304     'HAVE_FLAGS_IN_KRB5_CREDS',
 305     headers='krb5.h', lib='krb5', execute=False,
 306     msg="Checking whether krb5_creds have flags property")
 307
 308 # Check for MIT KDC
 309 if conf.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'):
 310     Logs.info("Looking for MIT KDC")
 311     conf.DEFINE('SAMBA_USES_MITKDC', 1);
 312
 313     kdc_path_list = [ '/usr/sbin', '/usr/lib/mit/sbin']
 314
 315     if getattr(Options.options, 'with_system_mitkdc', None):
 316         conf.DEFINE('MIT_KDC_PATH', '"' + Options.options.with_system_mitkdc + '"')
 317     else:
 318         conf.find_program('krb5kdc', path_list=kdc_path_list, var='MIT_KDC_BINARY', mandatory=True)
 319         conf.DEFINE('MIT_KDC_PATH', '"' + " ".join(conf.env.MIT_KDC_BINARY) + '"')