wscript_configure_system_mitkrb5

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