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 'k5crypto' in conf.env['LIB_GSSAPI']:
  32         krb5_define_syslib(conf, "k5crypto", conf.env['LIB_GSSAPI'])
  33     if 'com_err' in conf.env['LIB_GSSAPI']:
  34         krb5_define_syslib(conf, "com_err", conf.env['LIB_GSSAPI'])
  35     if 'gssapi_krb5' in conf.env['LIB_GSSAPI']:
  36         krb5_define_syslib(conf, "gssapi_krb5", conf.env['LIB_GSSAPI'])
  37
  38     vendor = conf.cmd_and_log("%(path)s --vendor" % dict(path=conf.env.KRB5_CONFIG), dict())
  39     conf.env.KRB5_VENDOR = vendor.strip().lower()
  40     if conf.env.KRB5_VENDOR != 'heimdal':
  41         conf.define('USING_SYSTEM_KRB5', 1)
  42         del conf.env.HEIMDAL_KRB5_CONFIG
  43         kversion = conf.cmd_and_log("%(path)s --version" % dict(path=conf.env.KRB5_CONFIG), dict()).strip()
  44         kversion_split = kversion.split(' ')[-1].split('.')
  45         # drop '-prerelease' suffix
  46         if kversion_split[-1].find('-') > 0:
  47             last_digit = kversion_split[-1].split('-')[0]
  48             kversion_split[-1] = last_digit
  49         kversion_check = map(int, kversion_split)
  50         if kversion_check < [1, 9]:
  51             Logs.error('ERROR: MIT krb5 build requires at least 1.9.0. %s is found and cannot be used' % (kversion))
  52             Logs.error('ERROR: You may try to build with embedded Heimdal Kerebros by not specifying --with-system-mitkrb5')
  53             sys.exit(1)
  54         else:
  55             Logs.info('%s is detected, MIT krb5 build can proceed' % (kversion))
  56
  57 conf.CHECK_CFG(args="--cflags --libs", package="com_err", uselib_store="com_err")
  58 conf.CHECK_FUNCS_IN('_et_list', 'com_err')
  59 conf.CHECK_HEADERS('com_err.h', lib='com_err')
  60
  61 conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5')
  62 possible_gssapi_headers="gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_ext.h gssapi/gssapi_krb5.h gssapi/gssapi_oid.h"
  63 conf.CHECK_HEADERS(possible_gssapi_headers, lib='gssapi')
  64
  65 conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto')
  66 conf.CHECK_FUNCS_IN('des_set_key','crypto')
  67 conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1')
  68 conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken')
  69
  70 conf.CHECK_HEADERS('profile.h')
  71
  72 if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi gssapi_krb5'):
  73     have_gssapi=True
  74
  75 if not have_gssapi:
  76     if conf.env.KRB5_CONFIG and conf.env.KRB5_CONFIG != 'heimdal':
  77         Logs.error("ERROR: WAF build with MIT Krb5 requires working GSSAPI implementation")
  78         sys.exit(1)
  79
  80 conf.CHECK_FUNCS_IN('''
  81        gss_wrap_iov
  82        gss_krb5_import_cred
  83        gss_get_name_attribute
  84        gss_mech_krb5
  85        gss_oid_equal
  86        gss_inquire_sec_context_by_oid
  87        gsskrb5_extract_authz_data_from_sec_context
  88        gss_krb5_export_lucid_sec_context
  89        gss_import_cred gss_export_cred
  90        ''', 'gssapi gssapi_krb5')
  91 conf.CHECK_VARIABLE('GSS_KRB5_CRED_NO_CI_FLAGS_X', headers=possible_gssapi_headers)
  92 conf.CHECK_FUNCS_IN('krb5_mk_req_extended krb5_kt_compare', 'krb5')
  93 conf.CHECK_FUNCS('''
  94        krb5_auth_con_getrecvsubkey
  95        krb5_auth_con_getsendsubkey
  96        krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes
  97        krb5_set_default_tgs_ktypes krb5_principal2salt
  98        krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey
  99        krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes
 100        krb5_get_default_in_tkt_etypes krb5_free_data_contents
 101        krb5_principal_get_comp_string krb5_free_unparsed_name
 102        krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init
 103        krb5_krbhst_get_addrinfo
 104        krb5_crypto_init krb5_crypto_destroy
 105        krb5_c_verify_checksum krb5_principal_compare_any_realm
 106        krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request
 107        krb5_get_renewed_creds krb5_free_error_contents
 108        initialize_krb5_error_table krb5_get_init_creds_opt_alloc
 109        krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error
 110        krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype
 111        krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds
 112        krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm
 113        krb5_get_init_creds_keyblock krb5_get_init_creds_keytab
 114        krb5_make_principal krb5_build_principal_alloc_va
 115        krb5_cc_get_lifetime krb5_cc_retrieve_cred
 116        krb5_free_checksum_contents krb5_c_make_checksum krb5_create_checksum
 117        krb5_config_get_bool_default krb5_get_profile
 118        krb5_data_copy
 119        krb5_keyblock_init krb5_principal_set_realm krb5_principal_get_type
 120        krb5_principal_set_type
 121        krb5_warnx
 122        krb5_get_prompt_types
 123        ''',
 124      lib='krb5 k5crypto')
 125 conf.CHECK_DECLS('''krb5_get_credentials_for_user
 126                     krb5_auth_con_set_req_cksumtype''',
 127                     headers='krb5.h', always=True)
 128 conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h')
 129 conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h')
 130 conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h')
 131 conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h')
 132 conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h')
 133 conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h')
 134 conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h')
 135 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key', headers='krb5.h',
 136                             define='HAVE_KRB5_KEYTAB_ENTRY_KEY')
 137 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock', headers='krb5.h',
 138                             define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK')
 139 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic', headers='krb5.h',
 140                             define='HAVE_MAGIC_IN_KRB5_ADDRESS')
 141 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype', headers='krb5.h',
 142                             define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS')
 143 conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket', headers='krb5.h',
 144                             define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ')
 145 conf.CHECK_STRUCTURE_MEMBER('krb5_prompt', 'type', headers='krb5.h',
 146                             define='HAVE_KRB5_PROMPT_TYPE')
 147
 148 conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h')
 149
 150 conf.CHECK_CODE('''
 151        krb5_context ctx;
 152        krb5_get_init_creds_opt *opt = NULL;
 153        krb5_get_init_creds_opt_free(ctx, opt);
 154        ''',
 155     'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT',
 156     headers='krb5.h', link=False,
 157     msg="Checking whether krb5_get_init_creds_opt_free takes a context argument")
 158 conf.CHECK_CODE('''
 159        const krb5_data *pkdata;
 160        krb5_context context;
 161        krb5_principal principal;
 162        pkdata = krb5_princ_component(context, principal, 0);
 163        ''',
 164     'HAVE_KRB5_PRINC_COMPONENT',
 165     headers='krb5.h', lib='krb5',
 166     msg="Checking whether krb5_princ_component is available")
 167
 168 conf.CHECK_CODE('''
 169        int main(void) {
 170        char buf[256];
 171        krb5_enctype_to_string(1, buf, 256);
 172        return 0;
 173        }''',
 174     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG',
 175     headers='krb5.h', lib='krb5 k5crypto',
 176     addmain=False, cflags=conf.env['WERROR_CFLAGS'],
 177     msg="Checking whether krb5_enctype_to_string takes size_t argument")
 178
 179 conf.CHECK_CODE('''
 180        int main(void) {
 181        krb5_context context = NULL;
 182        char *str = NULL;
 183        krb5_enctype_to_string(context, 1, &str);
 184        if (str) free (str);
 185        return 0;
 186        }''',
 187     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG',
 188     headers='krb5.h stdlib.h', lib='krb5',
 189     addmain=False, cflags=conf.env['WERROR_CFLAGS'],
 190     msg="Checking whether krb5_enctype_to_string takes krb5_context argument")
 191 conf.CHECK_CODE('''
 192        int main(void) {
 193        krb5_context ctx = NULL;
 194        krb5_principal princ = NULL;
 195        const char *str = krb5_princ_realm(ctx, princ)->data;
 196        return 0;
 197        }''',
 198     'HAVE_KRB5_PRINC_REALM',
 199     headers='krb5.h', lib='krb5',
 200     addmain=False,
 201     msg="Checking whether the macro krb5_princ_realm is defined")
 202 conf.CHECK_CODE('''
 203        int main(void) {
 204            krb5_context context;
 205            krb5_principal principal;
 206            const char *realm; realm = krb5_principal_get_realm(context, principal);
 207            return 0;
 208        }''',
 209     'HAVE_KRB5_PRINCIPAL_GET_REALM',
 210     headers='krb5.h', lib='krb5',
 211     addmain=False,
 212     msg="Checking whether krb5_principal_get_realm is defined")
 213 conf.CHECK_CODE('''
 214        krb5_enctype enctype;
 215        enctype = ENCTYPE_ARCFOUR_HMAC_MD5;
 216        ''',
 217     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5',
 218     headers='krb5.h', lib='krb5',
 219     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available");
 220 conf.CHECK_CODE('''
 221        krb5_enctype enctype;
 222        enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56;
 223        ''',
 224     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56',
 225     headers='krb5.h', lib='krb5',
 226     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available");
 227 conf.CHECK_CODE('''
 228        krb5_keytype keytype;
 229        keytype = KEYTYPE_ARCFOUR_56;
 230        ''',
 231     '_HAVE_KEYTYPE_ARCFOUR_56',
 232     headers='krb5.h', lib='krb5',
 233     msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available");
 234 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 235     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1')
 236 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 237     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1')
 238
 239 conf.CHECK_CODE('''
 240        krb5_enctype enctype;
 241        enctype = ENCTYPE_ARCFOUR_HMAC;
 242        ''',
 243     'HAVE_ENCTYPE_ARCFOUR_HMAC',
 244     headers='krb5.h', lib='krb5',
 245     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available");
 246 conf.CHECK_CODE('''
 247        krb5_enctype enctype;
 248        enctype = ENCTYPE_ARCFOUR_HMAC_EXP;
 249        ''',
 250     'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP',
 251     headers='krb5.h', lib='krb5',
 252     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available");
 253
 254 conf.CHECK_CODE('''
 255        krb5_context context;
 256        krb5_keytab keytab;
 257        krb5_init_context(&context);
 258        return krb5_kt_resolve(context, "WRFILE:api", &keytab);
 259        ''',
 260     'HAVE_WRFILE_KEYTAB',
 261     headers='krb5.h', lib='krb5', execute=True,
 262     msg="Checking whether the WRFILE:-keytab is supported");
 263 # Check for KRB5_DEPRECATED handling
 264 conf.CHECK_CODE('''#define KRB5_DEPRECATED 1
 265        #include <krb5.h>''',
 266    'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False,
 267     link=False,
 268     msg="Checking for KRB5_DEPRECATED define taking an identifier")
 269
 270 conf.CHECK_CODE('''
 271        krb5_creds creds;
 272        creds.flags.b.initial = 0;
 273        ''',
 274     'HAVE_FLAGS_IN_KRB5_CREDS',
 275     headers='krb5.h', lib='krb5', execute=False,
 276     msg="Checking whether krb5_creds have flags property")