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 = kversion.split(' ')[-1].split('.')
  41         # drop '-prerelease' suffix
  42         if kversion_split[-1].find('-') > 0:
  43             last_digit = kversion_split[-1].split('-')[0]
  44             kversion_split[-1] = last_digit
  45         kversion_check = map(int, kversion_split)
  46         if kversion_check < [1, 9]:
  47             Logs.error('ERROR: MIT krb5 build requires at least 1.9.0. %s is found and cannot be used' % (kversion))
  48             Logs.error('ERROR: You may try to build with embedded Heimdal Kerebros by not specifying --with-system-mitkrb5')
  49             sys.exit(1)
  50         else:
  51             Logs.info('%s is detected, MIT krb5 build can proceed' % (kversion))
  52
  53 conf.check_cfg(args="--cflags --libs", package="com_err", uselib_store="com_err")
  54 conf.CHECK_FUNCS_IN('_et_list', 'com_err')
  55 conf.CHECK_HEADERS('com_err.h', lib='com_err')
  56
  57 conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5')
  58 conf.CHECK_HEADERS('gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_ext.h gssapi/gssapi_krb5.h', lib='gssapi')
  59
  60 conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto')
  61 conf.CHECK_FUNCS_IN('des_set_key','crypto')
  62 conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1')
  63 conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken')
  64
  65 if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi gssapi_krb5'):
  66     have_gssapi=True
  67
  68 if not have_gssapi:
  69     if conf.env.KRB5_CONFIG and conf.env.KRB5_CONFIG != 'heimdal':
  70         Logs.error("ERROR: WAF build with MIT Krb5 requires working GSSAPI implementation")
  71         sys.exit(1)
  72
  73 conf.CHECK_FUNCS_IN('''
  74        gss_wrap_iov
  75        gss_krb5_import_cred
  76        gss_get_name_attribute
  77        gss_mech_krb5
  78        gss_oid_equal
  79        gss_inquire_sec_context_by_oid
  80        gsskrb5_extract_authz_data_from_sec_context
  81        gss_krb5_export_lucid_sec_context
  82        gss_import_cred gss_export_cred
  83        ''', 'gssapi gssapi_krb5')
  84 conf.CHECK_FUNCS_IN('krb5_mk_req_extended krb5_kt_compare', 'krb5')
  85 conf.CHECK_FUNCS('''
  86        krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes
  87        krb5_set_default_tgs_ktypes krb5_principal2salt
  88        krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey
  89        krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes
  90        krb5_get_default_in_tkt_etypes krb5_free_data_contents
  91        krb5_principal_get_comp_string krb5_free_unparsed_name
  92        krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init
  93        krb5_krbhst_get_addrinfo
  94        krb5_crypto_init krb5_crypto_destroy
  95        krb5_c_verify_checksum krb5_principal_compare_any_realm
  96        krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request
  97        krb5_get_renewed_creds krb5_free_error_contents
  98        initialize_krb5_error_table krb5_get_init_creds_opt_alloc
  99        krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error
 100        krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype
 101        krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds
 102        krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm
 103        krb5_get_init_creds_keyblock krb5_get_init_creds_keytab
 104        krb5_make_principal krb5_build_principal_alloc_va
 105        krb5_cc_get_lifetime krb5_cc_retrieve_cred
 106        krb5_free_checksum_contents krb5_c_make_checksum krb5_create_checksum''',
 107      lib='krb5 k5crypto')
 108 conf.CHECK_DECLS('''krb5_get_credentials_for_user
 109                     krb5_auth_con_set_req_cksumtype''',
 110                     headers='krb5.h', always=True)
 111 conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h')
 112 conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h')
 113 conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h')
 114 conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h')
 115 conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h')
 116 conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h')
 117 conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h')
 118 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key', headers='krb5.h',
 119                             define='HAVE_KRB5_KEYTAB_ENTRY_KEY')
 120 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock', headers='krb5.h',
 121                             define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK')
 122 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic', headers='krb5.h',
 123                             define='HAVE_MAGIC_IN_KRB5_ADDRESS')
 124 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype', headers='krb5.h',
 125                             define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS')
 126 conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket', headers='krb5.h',
 127                             define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ')
 128
 129 conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h')
 130
 131 conf.CHECK_CODE('''
 132        krb5_context ctx;
 133        krb5_get_init_creds_opt *opt = NULL;
 134        krb5_get_init_creds_opt_free(ctx, opt);
 135        ''',
 136     'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT',
 137     headers='krb5.h', link=False,
 138     msg="Checking whether krb5_get_init_creds_opt_free takes a context argument")
 139 conf.CHECK_CODE('''
 140        const krb5_data *pkdata;
 141        krb5_context context;
 142        krb5_principal principal;
 143        pkdata = krb5_princ_component(context, principal, 0);
 144        ''',
 145     'HAVE_KRB5_PRINC_COMPONENT',
 146     headers='krb5.h', lib='krb5',
 147     msg="Checking whether krb5_princ_component is available")
 148
 149 conf.CHECK_CODE('''
 150        int main(void) {
 151        char buf[256];
 152        krb5_enctype_to_string(1, buf, 256);
 153        return 0;
 154        }''',
 155     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG',
 156     headers='krb5.h', lib='krb5 k5crypto',
 157     addmain=False, cflags=conf.env['WERROR_CFLAGS'],
 158     msg="Checking whether krb5_enctype_to_string takes size_t argument")
 159
 160 conf.CHECK_CODE('''
 161        int main(void) {
 162        krb5_context context = NULL;
 163        char *str = NULL;
 164        krb5_enctype_to_string(context, 1, &str);
 165        if (str) free (str);
 166        return 0;
 167        }''',
 168     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG',
 169     headers='krb5.h stdlib.h', lib='krb5',
 170     addmain=False, cflags=conf.env['WERROR_CFLAGS'],
 171     msg="Checking whether krb5_enctype_to_string takes krb5_context argument")
 172 conf.CHECK_CODE('''
 173        int main(void) {
 174        krb5_context ctx = NULL;
 175        krb5_principal princ = NULL;
 176        const char *str = krb5_princ_realm(ctx, princ)->data;
 177        return 0;
 178        }''',
 179     'HAVE_KRB5_PRINC_REALM',
 180     headers='krb5.h', lib='krb5',
 181     addmain=False,
 182     msg="Checking whether the macro krb5_princ_realm is defined")
 183 conf.CHECK_CODE('''
 184        int main(void) {
 185            krb5_context context;
 186            krb5_principal principal;
 187            const char *realm; realm = krb5_principal_get_realm(context, principal);
 188            return 0;
 189        }''',
 190     'HAVE_KRB5_PRINCIPAL_GET_REALM',
 191     headers='krb5.h', lib='krb5',
 192     addmain=False,
 193     msg="Checking whether krb5_principal_get_realm is defined")
 194 conf.CHECK_CODE('''
 195        krb5_enctype enctype;
 196        enctype = ENCTYPE_ARCFOUR_HMAC_MD5;
 197        ''',
 198     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5',
 199     headers='krb5.h', lib='krb5',
 200     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available");
 201 conf.CHECK_CODE('''
 202        krb5_enctype enctype;
 203        enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56;
 204        ''',
 205     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56',
 206     headers='krb5.h', lib='krb5',
 207     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available");
 208 conf.CHECK_CODE('''
 209        krb5_keytype keytype;
 210        keytype = KEYTYPE_ARCFOUR_56;
 211        ''',
 212     '_HAVE_KEYTYPE_ARCFOUR_56',
 213     headers='krb5.h', lib='krb5',
 214     msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available");
 215 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 216     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1')
 217 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 218     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1')
 219
 220 conf.CHECK_CODE('''
 221        krb5_enctype enctype;
 222        enctype = ENCTYPE_ARCFOUR_HMAC;
 223        ''',
 224     'HAVE_ENCTYPE_ARCFOUR_HMAC',
 225     headers='krb5.h', lib='krb5',
 226     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available");
 227 conf.CHECK_CODE('''
 228        krb5_enctype enctype;
 229        enctype = ENCTYPE_ARCFOUR_HMAC_EXP;
 230        ''',
 231     'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP',
 232     headers='krb5.h', lib='krb5',
 233     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available");
 234
 235 conf.CHECK_CODE('''
 236        krb5_context context;
 237        krb5_keytab keytab;
 238        krb5_init_context(&context);
 239        return krb5_kt_resolve(context, "WRFILE:api", &keytab);
 240        ''',
 241     'HAVE_WRFILE_KEYTAB',
 242     headers='krb5.h', lib='krb5', execute=True,
 243     msg="Checking whether the WRFILE:-keytab is supported");
 244 # Check for KRB5_DEPRECATED handling
 245 conf.CHECK_CODE('''#define KRB5_DEPRECATED 1
 246        #include <krb5.h>''',
 247    'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False,
 248     link=False,
 249     msg="Checking for KRB5_DEPRECATED define taking an identifier")
 250
 251 conf.CHECK_CODE('''
 252        krb5_creds creds;
 253        creds.flags.b.initial = 0;
 254        ''',
 255     'HAVE_FLAGS_IN_KRB5_CREDS',
 256     headers='krb5.h', lib='krb5', execute=False,
 257     msg="Checking whether krb5_creds have flags property")