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="gssapi", uselib_store="GSSAPI")
  30     krb5_define_syslib(conf, "gssapi", conf.env['LIB_GSSAPI'])
  31     if 'gssapi_krb5' in conf.env['LIB_GSSAPI']:
  32         krb5_define_syslib(conf, "gssapi_krb5", conf.env['LIB_GSSAPI'])
  33
  34     vendor = conf.cmd_and_log("%(path)s --vendor" % dict(path=conf.env.KRB5_CONFIG), dict())
  35     conf.env.KRB5_VENDOR = vendor.strip().lower()
  36     if conf.env.KRB5_VENDOR != 'heimdal':
  37         conf.define('USING_SYSTEM_KRB5', 1)
  38         del conf.env.HEIMDAL_KRB5_CONFIG
  39         kversion = conf.cmd_and_log("%(path)s --version" % dict(path=conf.env.KRB5_CONFIG), dict()).strip()
  40         kversion_split = map(int, kversion.split(" ")[-1].split("."))
  41         if kversion_split < [1, 9]:
  42             Logs.error('ERROR: MIT krb5 build requires at least 1.9.0. %s is found and cannot be used' % (kversion))
  43             sys.exit(1)
  44         else:
  45             Logs.info('%s is detected, MIT krb5 build can proceed' % (kversion))
  46
  47 conf.check_cfg(args="--cflags --libs", package="com_err", uselib_store="com_err")
  48 conf.CHECK_FUNCS_IN('_et_list', 'com_err')
  49 conf.CHECK_HEADERS('com_err.h', lib='com_err')
  50
  51 conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5')
  52 conf.CHECK_HEADERS('gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_ext.h gssapi/gssapi_krb5.h', lib='gssapi')
  53
  54 conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto')
  55 conf.CHECK_FUNCS_IN('des_set_key','crypto')
  56 conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1')
  57 conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken')
  58
  59 if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi gssapi_krb5'):
  60     have_gssapi=True
  61
  62 if not have_gssapi:
  63     Logs.error("ERROR: WAF build with MIT Krb5 requires working GSSAPI implementation")
  64     sys.exit(1)
  65
  66 conf.CHECK_FUNCS_IN('''
  67        gss_wrap_iov
  68        gss_krb5_import_cred
  69        gss_get_name_attribute
  70        gss_mech_krb5
  71        gss_oid_equal
  72        gss_inquire_sec_context_by_oid
  73        gsskrb5_extract_authz_data_from_sec_context
  74        gss_krb5_export_lucid_sec_context
  75        gss_import_cred gss_export_cred
  76        ''', 'gssapi gssapi_krb5')
  77 conf.CHECK_FUNCS_IN('krb5_mk_req_extended krb5_kt_compare', 'krb5')
  78 conf.CHECK_FUNCS('''
  79        krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes
  80        krb5_set_default_tgs_ktypes krb5_principal2salt
  81        krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey
  82        krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes
  83        krb5_get_default_in_tkt_etypes krb5_free_data_contents
  84        krb5_principal_get_comp_string krb5_free_unparsed_name
  85        krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init
  86        krb5_krbhst_get_addrinfo
  87        krb5_crypto_init krb5_crypto_destroy
  88        krb5_c_verify_checksum krb5_principal_compare_any_realm
  89        krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request
  90        krb5_get_renewed_creds krb5_free_error_contents
  91        initialize_krb5_error_table krb5_get_init_creds_opt_alloc
  92        krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error
  93        krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype
  94        krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds
  95        krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm
  96        krb5_get_init_creds_keyblock krb5_get_init_creds_keytab
  97        krb5_make_principal krb5_build_principal_alloc_va
  98        krb5_cc_get_lifetime krb5_cc_retrieve_cred
  99        krb5_free_checksum_contents krb5_c_make_checksum''',
 100      lib='krb5 k5crypto')
 101 conf.CHECK_DECLS('''krb5_get_credentials_for_user
 102                     krb5_auth_con_set_req_cksumtype''',
 103                     headers='krb5.h', always=True)
 104 conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h')
 105 conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h')
 106 conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h')
 107 conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h')
 108 conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h')
 109 conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h')
 110 conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h')
 111 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key', headers='krb5.h',
 112                             define='HAVE_KRB5_KEYTAB_ENTRY_KEY')
 113 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock', headers='krb5.h',
 114                             define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK')
 115 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic', headers='krb5.h',
 116                             define='HAVE_MAGIC_IN_KRB5_ADDRESS')
 117 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype', headers='krb5.h',
 118                             define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS')
 119 conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket', headers='krb5.h',
 120                             define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ')
 121
 122 conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h')
 123
 124 conf.CHECK_CODE('''
 125        krb5_context ctx;
 126        krb5_get_init_creds_opt *opt = NULL;
 127        krb5_get_init_creds_opt_free(ctx, opt);
 128        ''',
 129     'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT',
 130     headers='krb5.h', link=False,
 131     msg="Checking whether krb5_get_init_creds_opt_free takes a context argument")
 132 conf.CHECK_CODE('''
 133        const krb5_data *pkdata;
 134        krb5_context context;
 135        krb5_principal principal;
 136        pkdata = krb5_princ_component(context, principal, 0);
 137        ''',
 138     'HAVE_KRB5_PRINC_COMPONENT',
 139     headers='krb5.h', lib='krb5',
 140     msg="Checking whether krb5_princ_component is available")
 141
 142 conf.CHECK_CODE('''
 143        int main(void) {
 144        char buf[256];
 145        krb5_enctype_to_string(1, buf, 256);
 146        return 0;
 147        }''',
 148     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG',
 149     headers='krb5.h', lib='krb5 k5crypto',
 150     addmain=False, cflags='-Werror',
 151     msg="Checking whether krb5_enctype_to_string takes size_t argument")
 152
 153 conf.CHECK_CODE('''
 154        int main(void) {
 155        krb5_context context = NULL;
 156        char *str = NULL;
 157        krb5_enctype_to_string(context, 1, &str);
 158        if (str) free (str);
 159        return 0;
 160        }''',
 161     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG',
 162     headers='krb5.h stdlib.h', lib='krb5',
 163     addmain=False, cflags='-Werror',
 164     msg="Checking whether krb5_enctype_to_string takes krb5_context argument")
 165 conf.CHECK_CODE('''
 166        int main(void) {
 167        krb5_context ctx = NULL;
 168        krb5_principal princ = NULL;
 169        const char *str = krb5_princ_realm(ctx, princ)->data;
 170        return 0;
 171        }''',
 172     'HAVE_KRB5_PRINC_REALM',
 173     headers='krb5.h', lib='krb5',
 174     addmain=False,
 175     msg="Checking whether the macro krb5_princ_realm is defined")
 176 conf.CHECK_CODE('''
 177        int main(void) {
 178            krb5_context context;
 179            krb5_principal principal;
 180            const char *realm; realm = krb5_principal_get_realm(context, principal);
 181            return 0;
 182        }''',
 183     'HAVE_KRB5_PRINCIPAL_GET_REALM',
 184     headers='krb5.h', lib='krb5',
 185     addmain=False,
 186     msg="Checking whether krb5_principal_get_realm is defined")
 187 conf.CHECK_CODE('''
 188        krb5_enctype enctype;
 189        enctype = ENCTYPE_ARCFOUR_HMAC_MD5;
 190        ''',
 191     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5',
 192     headers='krb5.h', lib='krb5',
 193     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available");
 194 conf.CHECK_CODE('''
 195        krb5_enctype enctype;
 196        enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56;
 197        ''',
 198     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56',
 199     headers='krb5.h', lib='krb5',
 200     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available");
 201 conf.CHECK_CODE('''
 202        krb5_keytype keytype;
 203        keytype = KEYTYPE_ARCFOUR_56;
 204        ''',
 205     '_HAVE_KEYTYPE_ARCFOUR_56',
 206     headers='krb5.h', lib='krb5',
 207     msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available");
 208 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 209     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1')
 210 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 211     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1')
 212
 213 conf.CHECK_CODE('''
 214        krb5_enctype enctype;
 215        enctype = ENCTYPE_ARCFOUR_HMAC;
 216        ''',
 217     'HAVE_ENCTYPE_ARCFOUR_HMAC',
 218     headers='krb5.h', lib='krb5',
 219     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available");
 220 conf.CHECK_CODE('''
 221        krb5_enctype enctype;
 222        enctype = ENCTYPE_ARCFOUR_HMAC_EXP;
 223        ''',
 224     'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP',
 225     headers='krb5.h', lib='krb5',
 226     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available");
 227
 228 conf.CHECK_CODE('''
 229        krb5_context context;
 230        krb5_keytab keytab;
 231        krb5_init_context(&context);
 232        return krb5_kt_resolve(context, "WRFILE:api", &keytab);
 233        ''',
 234     'HAVE_WRFILE_KEYTAB',
 235     headers='krb5.h', lib='krb5', execute=True,
 236     msg="Checking whether the WRFILE:-keytab is supported");
 237 # Check for KRB5_DEPRECATED handling
 238 conf.CHECK_CODE('''#define KRB5_DEPRECATED 1
 239        #include <krb5.h>''',
 240    'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False,
 241     link=False,
 242     msg="Checking for KRB5_DEPRECATED define taking an identifier")