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