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 conf.find_program('krb5-config', var='KRB5_CONFIG')
  17 if conf.env.KRB5_CONFIG:
  18     conf.check_cfg(path="krb5-config", args="--cflags --libs",
  19                package="", uselib_store="KRB5")
  20     krb5_define_syslib(conf, "krb5", conf.env['LIB_KRB5'])
  21     for lib in conf.env['LIB_KRB5']:
  22         krb5_define_syslib(conf, lib, lib)
  23
  24     conf.check_cfg(path="krb5-config", args="--cflags --libs",
  25                package="gssapi", uselib_store="GSSAPI")
  26     krb5_define_syslib(conf, "gssapi", conf.env['LIB_GSSAPI'])
  27
  28     vendor = conf.cmd_and_log("%(path)s --vendor" % dict(path=conf.env.KRB5_CONFIG), dict())
  29     conf.env.KRB5_VENDOR = vendor.strip().lower()
  30     if conf.env.KRB5_VENDOR != 'heimdal':
  31         conf.define('USING_SYSTEM_KRB5', 1)
  32         del conf.env.HEIMDAL_KRB5_CONFIG
  33         kversion = conf.cmd_and_log("%(path)s --version" % dict(path=conf.env.KRB5_CONFIG), dict()).strip()
  34         kversion_split = map(int, kversion.split(" ")[-1].split("."))
  35         if kversion_split < [1, 9]:
  36             Logs.error('ERROR: MIT krb5 build requires at least 1.9.0. %s is found and cannot be used' % (kversion))
  37             sys.exit(1)
  38         else:
  39             Logs.info('%s is detected, MIT krb5 build can proceed' % (kversion))
  40
  41 conf.check_cfg(args="--cflags --libs", package="com_err", uselib_store="com_err")
  42 conf.CHECK_FUNCS_IN('_et_list', 'com_err')
  43 conf.CHECK_HEADERS('com_err.h', lib='com_err')
  44
  45 conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5')
  46 conf.CHECK_HEADERS('gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_ext.h gssapi/gssapi_krb5.h', lib='gssapi')
  47
  48 conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto')
  49 conf.CHECK_FUNCS_IN('des_set_key','crypto')
  50 conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1')
  51 conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken')
  52 if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi') or \
  53    conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi_krb5'):
  54     have_gssapi=True
  55 conf.CHECK_FUNCS_IN('''
  56        gss_wrap_iov
  57        gss_krb5_import_cred
  58        gss_get_name_attribute
  59        gss_mech_krb5
  60        gss_oid_equal
  61        gss_inquire_sec_context_by_oid
  62        gsskrb5_extract_authz_data_from_sec_context
  63        gss_krb5_export_lucid_sec_context
  64        gss_import_cred gss_export_cred
  65        ''', 'gssapi gssapi_krb5 krb5')
  66 conf.CHECK_FUNCS_IN('krb5_mk_req_extended krb5_kt_compare', 'krb5')
  67 conf.CHECK_FUNCS('''
  68        krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes
  69        krb5_set_default_tgs_ktypes krb5_principal2salt
  70        krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey
  71        krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes
  72        krb5_get_default_in_tkt_etypes krb5_free_data_contents
  73        krb5_principal_get_comp_string krb5_free_unparsed_name
  74        krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init
  75        krb5_krbhst_get_addrinfo
  76        krb5_crypto_init krb5_crypto_destroy
  77        krb5_c_verify_checksum krb5_principal_compare_any_realm
  78        krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request
  79        krb5_get_renewed_creds krb5_free_error_contents
  80        initialize_krb5_error_table krb5_get_init_creds_opt_alloc
  81        krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error
  82        krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype
  83        krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds
  84        krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm
  85        krb5_get_init_creds_keyblock krb5_get_init_creds_keytab
  86        krb5_make_principal krb5_build_principal_alloc_va
  87        krb5_cc_get_lifetime krb5_cc_retrieve_cred
  88        krb5_free_checksum_contents krb5_c_make_checksum''',
  89      lib='krb5 k5crypto')
  90 conf.CHECK_DECLS('''krb5_get_credentials_for_user
  91                     krb5_auth_con_set_req_cksumtype''',
  92                     headers='krb5.h', always=True)
  93 conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h')
  94 conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h')
  95 conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h')
  96 conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h')
  97 conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h')
  98 conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h')
  99 conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h')
 100 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key', headers='krb5.h',
 101                             define='HAVE_KRB5_KEYTAB_ENTRY_KEY')
 102 conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock', headers='krb5.h',
 103                             define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK')
 104 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic', headers='krb5.h',
 105                             define='HAVE_MAGIC_IN_KRB5_ADDRESS')
 106 conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype', headers='krb5.h',
 107                             define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS')
 108 conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket', headers='krb5.h',
 109                             define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ')
 110
 111 conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h')
 112
 113 conf.CHECK_CODE('''
 114        krb5_context ctx;
 115        krb5_get_init_creds_opt *opt = NULL;
 116        krb5_get_init_creds_opt_free(ctx, opt);
 117        ''',
 118     'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT',
 119     headers='krb5.h', link=False,
 120     msg="Checking whether krb5_get_init_creds_opt_free takes a context argument")
 121 conf.CHECK_CODE('''
 122        const krb5_data *pkdata;
 123        krb5_context context;
 124        krb5_principal principal;
 125        pkdata = krb5_princ_component(context, principal, 0);
 126        ''',
 127     'HAVE_KRB5_PRINC_COMPONENT',
 128     headers='krb5.h', lib='krb5',
 129     msg="Checking whether krb5_princ_component is available")
 130
 131 conf.CHECK_CODE('''
 132        int main(void) {
 133        char buf[256];
 134        krb5_enctype_to_string(1, buf, 256);
 135        return 0;
 136        }''',
 137     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG',
 138     headers='krb5.h', lib='krb5 k5crypto',
 139     addmain=False, cflags='-Werror',
 140     msg="Checking whether krb5_enctype_to_string takes size_t argument")
 141
 142 conf.CHECK_CODE('''
 143        int main(void) {
 144        krb5_context context = NULL;
 145        char *str = NULL;
 146        krb5_enctype_to_string(context, 1, &str);
 147        if (str) free (str);
 148        return 0;
 149        }''',
 150     'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG',
 151     headers='krb5.h stdlib.h', lib='krb5',
 152     addmain=False, cflags='-Werror',
 153     msg="Checking whether krb5_enctype_to_string takes krb5_context argument")
 154 conf.CHECK_CODE('''
 155        int main(void) {
 156        krb5_context ctx = NULL;
 157        krb5_principal princ = NULL;
 158        const char *str = krb5_princ_realm(ctx, princ)->data;
 159        return 0;
 160        }''',
 161     'HAVE_KRB5_PRINC_REALM',
 162     headers='krb5.h', lib='krb5',
 163     addmain=False,
 164     msg="Checking whether the macro krb5_princ_realm is defined")
 165 conf.CHECK_CODE('''
 166        int main(void) {
 167            krb5_context context;
 168            krb5_principal principal;
 169            const char *realm; realm = krb5_principal_get_realm(context, principal);
 170            return 0;
 171        }''',
 172     'HAVE_KRB5_PRINCIPAL_GET_REALM',
 173     headers='krb5.h', lib='krb5',
 174     addmain=False,
 175     msg="Checking whether krb5_principal_get_realm is defined")
 176 conf.CHECK_CODE('''
 177        krb5_enctype enctype;
 178        enctype = ENCTYPE_ARCFOUR_HMAC_MD5;
 179        ''',
 180     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5',
 181     headers='krb5.h', lib='krb5',
 182     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available");
 183 conf.CHECK_CODE('''
 184        krb5_enctype enctype;
 185        enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56;
 186        ''',
 187     '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56',
 188     headers='krb5.h', lib='krb5',
 189     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available");
 190 conf.CHECK_CODE('''
 191        krb5_keytype keytype;
 192        keytype = KEYTYPE_ARCFOUR_56;
 193        ''',
 194     '_HAVE_KEYTYPE_ARCFOUR_56',
 195     headers='krb5.h', lib='krb5',
 196     msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available");
 197 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 198     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1')
 199 if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
 200     conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1')
 201
 202 conf.CHECK_CODE('''
 203        krb5_enctype enctype;
 204        enctype = ENCTYPE_ARCFOUR_HMAC;
 205        ''',
 206     'HAVE_ENCTYPE_ARCFOUR_HMAC',
 207     headers='krb5.h', lib='krb5',
 208     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available");
 209 conf.CHECK_CODE('''
 210        krb5_enctype enctype;
 211        enctype = ENCTYPE_ARCFOUR_HMAC_EXP;
 212        ''',
 213     'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP',
 214     headers='krb5.h', lib='krb5',
 215     msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available");
 216
 217 conf.CHECK_CODE('''
 218        krb5_context context;
 219        krb5_keytab keytab;
 220        krb5_init_context(&context);
 221        return krb5_kt_resolve(context, "WRFILE:api", &keytab);
 222        ''',
 223     'HAVE_WRFILE_KEYTAB',
 224     headers='krb5.h', lib='krb5', execute=True,
 225     msg="Checking whether the WRFILE:-keytab is supported");
 226 # Check for KRB5_DEPRECATED handling
 227 conf.CHECK_CODE('''#define KRB5_DEPRECATED 1
 228        #include <krb5.h>''',
 229    'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False,
 230     link=False,
 231     msg="Checking for KRB5_DEPRECATED define taking an identifier")