import sys from waflib import Logs, Options, Errors # Check for kerberos have_gssapi=False krb5_min_required_version = "1.16" # Required versions krb5_required_version = krb5_min_required_version if conf.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'): krb5_required_version = "1.21" def parse_version(v): return tuple(map(int, (v.split(".")))) def krb5_define_syslib(conf, lib, deps): found = 'FOUND_SYSTEMLIB_' + lib if found in conf.env: return conf.SET_TARGET_TYPE(lib, 'SYSLIB') conf.SET_SYSLIB_DEPS(lib, deps) conf.env[found] = True Logs.info("Looking for kerberos features") conf.find_program('krb5-config.heimdal', var='HEIMDAL_KRB5_CONFIG') if isinstance(Options.options.with_system_mitkrb5, list): path_krb5_config = [x+'/bin' for x in Options.options.with_system_mitkrb5] else: path_krb5_config = None conf.CHECK_CFG(args="--cflags --libs", package="com_err", uselib_store="com_err") conf.CHECK_FUNCS_IN('_et_list', 'com_err') conf.CHECK_HEADERS('com_err.h', lib='com_err') conf.find_program('krb5-config', path_list=path_krb5_config, var='KRB5_CONFIG') if conf.env.KRB5_CONFIG: vendor = conf.cmd_and_log(conf.env.KRB5_CONFIG+['--vendor']) conf.env.KRB5_VENDOR = vendor.strip().lower() if conf.env.KRB5_VENDOR == 'heimdal': raise Errors.WafError('--with-system-mitkrb5 cannot be used with system heimdal') if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs", package="", uselib_store="KRB5"): if 'krb5' in conf.env['LIB_KRB5']: krb5_define_syslib(conf, "krb5", conf.env['LIB_KRB5']) if 'k5crypto' in conf.env['LIB_KRB5']: krb5_define_syslib(conf, "k5crypto", conf.env['LIB_KRB5']) else: raise Errors.WafError('Unable to find required krb5 library!') if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs", package="gssapi", uselib_store="GSSAPI"): krb5_define_syslib(conf, "gssapi", conf.env['LIB_GSSAPI']) if 'gssapi_krb5' in conf.env['LIB_GSSAPI']: krb5_define_syslib(conf, "gssapi_krb5", conf.env['LIB_GSSAPI']) else: raise Errors.WafError('Unable to find required gssapi library!') if conf.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'): if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs", package="gssrpc", uselib_store="GSSRPC"): krb5_define_syslib(conf, "gssrpc", conf.env['LIB_GSSRPC']) if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs", package="kdb", uselib_store="KDB5"): krb5_define_syslib(conf, "kdb5", conf.env['LIB_KDB5']) conf.CHECK_HEADERS('kdb.h', lib='kdb5') else: raise Errors.WafError('Unable to find required kdb5 library!') if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs", package="kadm-server", uselib_store="KADM5SRV_MIT"): krb5_define_syslib(conf, "kadm5srv_mit", conf.env['LIB_KADM5SRV_MIT']) conf.CHECK_FUNCS_IN('kadm5_init', 'kadm5srv_mit') else: raise Errors.WafError('Unable to find required kadm5srv_mit ' 'library!') conf.define('USING_SYSTEM_KRB5', 1) del conf.env.HEIMDAL_KRB5_CONFIG krb5_conf_version = conf.cmd_and_log(conf.env.KRB5_CONFIG+['--version']).strip() krb5_version = krb5_conf_version.split()[-1] # drop '-prerelease' suffix if krb5_version.find('-') > 0: krb5_version = krb5_version.split("-")[0] if parse_version(krb5_version) < parse_version(krb5_required_version): Logs.error('ERROR: The MIT KRB5 build with Samba AD requires at least %s. %s has been found and cannot be used' % (krb5_required_version, krb5_version)) Logs.error('ERROR: If you want to just build Samba FS (File Server) use the option --without-ad-dc which requires version %s' % (krb5_min_required_version)) Logs.error('ERROR: You may try to build with embedded Heimdal Kerberos by not specifying --with-system-mitkrb5') sys.exit(1) else: Logs.info('MIT Kerberos %s detected, MIT krb5 build can proceed' % (krb5_version)) conf.define('USING_SYSTEM_MITKRB5', '"%s"' % krb5_version) conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5') conf.CHECK_HEADERS('krb5.h krb5/localauth_plugin.h', lib='krb5') possible_gssapi_headers="gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_ext.h gssapi/gssapi_krb5.h gssapi/gssapi_oid.h" conf.CHECK_HEADERS(possible_gssapi_headers, lib='gssapi') conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto') conf.CHECK_FUNCS_IN('des_set_key','crypto') conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1') conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken') conf.CHECK_HEADERS('profile.h', lib='krb5') if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi gssapi_krb5'): have_gssapi=True if not have_gssapi: if conf.env.KRB5_CONFIG and conf.env.KRB5_CONFIG != 'heimdal': Logs.error("ERROR: WAF build with MIT Krb5 requires working GSSAPI implementation") sys.exit(1) conf.CHECK_FUNCS_IN(''' gss_wrap_iov gss_krb5_import_cred gss_get_name_attribute gss_mech_krb5 gss_oid_equal gss_inquire_sec_context_by_oid gsskrb5_extract_authz_data_from_sec_context gss_krb5_export_lucid_sec_context gss_import_cred gss_export_cred gss_acquire_cred_from ''', 'gssapi gssapi_krb5') conf.CHECK_VARIABLE('GSS_KRB5_CRED_NO_CI_FLAGS_X', headers=possible_gssapi_headers, lib='gssapi gssapi_krb5') conf.CHECK_FUNCS(''' krb5_auth_con_getrecvsubkey krb5_auth_con_getsendsubkey krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes krb5_set_default_tgs_ktypes krb5_principal2salt krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes krb5_get_default_in_tkt_etypes krb5_free_data_contents krb5_principal_get_comp_string krb5_free_unparsed_name krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init krb5_krbhst_get_addrinfo krb5_crypto_init krb5_crypto_destroy krb5_c_verify_checksum krb5_principal_compare_any_realm krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request krb5_get_renewed_creds krb5_free_error_contents initialize_krb5_error_table krb5_get_init_creds_opt_alloc krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm krb5_get_init_creds_keyblock krb5_get_init_creds_keytab krb5_make_principal krb5_build_principal_alloc_va krb5_cc_get_lifetime krb5_cc_retrieve_cred krb5_cc_copy_creds krb5_free_checksum_contents krb5_c_make_checksum krb5_create_checksum krb5_config_get_bool_default krb5_get_profile krb5_data_copy krb5_init_keyblock krb5_principal_set_realm krb5_principal_get_type krb5_principal_set_type krb5_warnx krb5_get_prompt_types krb5_mk_req_extended krb5_kt_compare krb5_free_enctypes krb5_free_string krb5_get_init_creds_opt_set_fast_ccache krb5_get_init_creds_opt_set_fast_flags ''', lib='krb5 k5crypto', headers='krb5.h') conf.CHECK_DECLS('''krb5_get_credentials_for_user krb5_auth_con_set_req_cksumtype''', headers='krb5.h', lib='krb5', always=True) conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h', lib='krb5') conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h', lib='krb5') conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h', lib='krb5') conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h', lib='krb5') conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h', lib='krb5', mandatory=True) conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h', lib='krb5', mandatory=True) conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h', lib='krb5') conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key', headers='krb5.h', lib='krb5', define='HAVE_KRB5_KEYTAB_ENTRY_KEY') conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock', headers='krb5.h', lib='krb5', define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK') conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic', headers='krb5.h', lib='krb5', define='HAVE_MAGIC_IN_KRB5_ADDRESS') conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype', headers='krb5.h', lib='krb5', define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS') conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket', headers='krb5.h', lib='krb5', define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ') conf.CHECK_STRUCTURE_MEMBER('krb5_prompt', 'type', headers='krb5.h', lib='krb5', define='HAVE_KRB5_PROMPT_TYPE') conf.CHECK_CODE('krb5_trace_info', 'HAVE_KRB5_TRACE_INFO', headers='krb5.h', lib='krb5') conf.CHECK_CODE('struct krb5_trace_info', 'HAVE_KRB5_TRACE_INFO_STRUCT', headers='krb5.h', lib='krb5') conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h', lib='krb5') conf.CHECK_CODE(''' krb5_context ctx; krb5_get_init_creds_opt *opt = NULL; krb5_get_init_creds_opt_free(ctx, opt); ''', 'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT', headers='krb5.h', link=False, lib='krb5', msg="Checking whether krb5_get_init_creds_opt_free takes a context argument") conf.CHECK_CODE(''' const krb5_data *pkdata; krb5_context context; krb5_principal principal; pkdata = krb5_princ_component(context, principal, 0); ''', 'HAVE_KRB5_PRINC_COMPONENT', headers='krb5.h', lib='krb5', msg="Checking whether krb5_princ_component is available") conf.CHECK_CODE(''' int main(void) { char buf[256]; krb5_enctype_to_string(1, buf, 256); return 0; }''', 'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG', headers='krb5.h', lib='krb5 k5crypto', addmain=False, cflags=conf.env['WERROR_CFLAGS'], msg="Checking whether krb5_enctype_to_string takes size_t argument") conf.CHECK_CODE(''' int main(void) { krb5_context context = NULL; char *str = NULL; krb5_enctype_to_string(context, 1, &str); if (str) free (str); return 0; }''', 'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG', headers='krb5.h stdlib.h', lib='krb5', addmain=False, cflags=conf.env['WERROR_CFLAGS'], msg="Checking whether krb5_enctype_to_string takes krb5_context argument") conf.CHECK_CODE(''' int main(void) { krb5_context ctx = NULL; krb5_principal princ = NULL; const char *str = krb5_princ_realm(ctx, princ)->data; return 0; }''', 'HAVE_KRB5_PRINC_REALM', headers='krb5.h', lib='krb5', addmain=False, msg="Checking whether the macro krb5_princ_realm is defined") conf.CHECK_CODE(''' int main(void) { krb5_context context; krb5_principal principal; const char *realm; realm = krb5_principal_get_realm(context, principal); return 0; }''', 'HAVE_KRB5_PRINCIPAL_GET_REALM', headers='krb5.h', lib='krb5', addmain=False, msg="Checking whether krb5_principal_get_realm is defined") conf.CHECK_CODE(''' krb5_enctype enctype; enctype = ENCTYPE_ARCFOUR_HMAC_MD5; ''', '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', headers='krb5.h', lib='krb5', msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available") conf.CHECK_CODE(''' krb5_enctype enctype; enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56; ''', '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', headers='krb5.h', lib='krb5', msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available") conf.CHECK_CODE(''' krb5_keytype keytype; keytype = KEYTYPE_ARCFOUR_56; ''', '_HAVE_KEYTYPE_ARCFOUR_56', headers='krb5.h', lib='krb5', msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available") if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'): conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1') if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'): conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1') conf.CHECK_CODE(''' krb5_enctype enctype; enctype = ENCTYPE_ARCFOUR_HMAC; ''', 'HAVE_ENCTYPE_ARCFOUR_HMAC', headers='krb5.h', lib='krb5', msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available") conf.CHECK_CODE(''' krb5_enctype enctype; enctype = ENCTYPE_ARCFOUR_HMAC_EXP; ''', 'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP', headers='krb5.h', lib='krb5', msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available") conf.CHECK_CODE(''' krb5_context context; krb5_keytab keytab; krb5_init_context(&context); return krb5_kt_resolve(context, "WRFILE:api", &keytab); ''', 'HAVE_WRFILE_KEYTAB', headers='krb5.h', lib='krb5', execute=True, msg="Checking whether the WRFILE -keytab is supported") # Check for KRB5_DEPRECATED handling conf.CHECK_CODE('''#define KRB5_DEPRECATED 1 #include ''', 'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False, link=False, lib='krb5', msg="Checking for KRB5_DEPRECATED define taking an identifier") conf.CHECK_CODE(''' krb5_creds creds; creds.flags.b.initial = 0; ''', 'HAVE_FLAGS_IN_KRB5_CREDS', headers='krb5.h', lib='krb5', execute=False, msg="Checking whether krb5_creds have flags property") # Check for MIT KDC if conf.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'): Logs.info("Looking for MIT KDC") conf.DEFINE('SAMBA_USES_MITKDC', 1) kdc_path_list = [ '/usr/sbin', '/usr/lib/mit/sbin'] if getattr(Options.options, 'with_system_mitkdc', None): conf.DEFINE('MIT_KDC_PATH', '"' + Options.options.with_system_mitkdc + '"') else: conf.find_program('krb5kdc', path_list=kdc_path_list, var='MIT_KDC_BINARY', mandatory=True) conf.DEFINE('MIT_KDC_PATH', '"' + " ".join(conf.env.MIT_KDC_BINARY) + '"')