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b896da351c
This is the version we test with in CI after the image update in the next commit. This addresses the issues that were fixed in CVE-2022-37967 (KrbtgtFullPacSignature) and ensures that Samba builds against the MIT version that allows us to avoid that attack. The hooks to allow these expectations to be disabled in the tests are kept for now, to allow this to be reverted or to test older servers. With MIT 1.21 as the new test standard for the MIT KDC build we update the knownfail_mit_kdc - this was required regadless after the CI image update. Any update to the CI image, even an unrelated one, brings in a new MIT Krb5, version 1.21-3 in this case. This has new behaviour that needs to be noted in the knownfail files or else the tests, which haven't changed, will fail and pipelines won't pass. (The image generated by the earlier bootstrap commit brought in krb5-1.21-2 which was buggy with CVE-2023-39975) Further tweaks to tests or the server should reduce the number of knownfail entries, but this keeps the pipelines passing for now. BUG: https://bugzilla.samba.org/show_bug.cgi?id=15231 Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
356 lines
15 KiB
Plaintext
356 lines
15 KiB
Plaintext
import sys
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from waflib import Logs, Options, Errors
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# Check for kerberos
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have_gssapi=False
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krb5_min_required_version = "1.9"
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# Required versions
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krb5_required_version = krb5_min_required_version
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if conf.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'):
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krb5_required_version = "1.21"
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def parse_version(v):
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return tuple(map(int, (v.split("."))))
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def krb5_define_syslib(conf, lib, deps):
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found = 'FOUND_SYSTEMLIB_' + lib
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if found in conf.env:
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return
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conf.SET_TARGET_TYPE(lib, 'SYSLIB')
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conf.SET_SYSLIB_DEPS(lib, deps)
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conf.env[found] = True
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Logs.info("Looking for kerberos features")
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conf.find_program('krb5-config.heimdal', var='HEIMDAL_KRB5_CONFIG')
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if isinstance(Options.options.with_system_mitkrb5, list):
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path_krb5_config = [x+'/bin' for x in Options.options.with_system_mitkrb5]
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else:
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path_krb5_config = None
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conf.CHECK_CFG(args="--cflags --libs", package="com_err", uselib_store="com_err")
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conf.CHECK_FUNCS_IN('_et_list', 'com_err')
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conf.CHECK_HEADERS('com_err.h', lib='com_err')
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conf.find_program('krb5-config', path_list=path_krb5_config, var='KRB5_CONFIG')
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if conf.env.KRB5_CONFIG:
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vendor = conf.cmd_and_log(conf.env.KRB5_CONFIG+['--vendor'])
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conf.env.KRB5_VENDOR = vendor.strip().lower()
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if conf.env.KRB5_VENDOR == 'heimdal':
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raise Errors.WafError('--with-system-mitkrb5 cannot be used with system heimdal')
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if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
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package="", uselib_store="KRB5"):
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if 'krb5' in conf.env['LIB_KRB5']:
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krb5_define_syslib(conf, "krb5", conf.env['LIB_KRB5'])
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if 'k5crypto' in conf.env['LIB_KRB5']:
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krb5_define_syslib(conf, "k5crypto", conf.env['LIB_GSSAPI'])
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else:
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raise Errors.WafError('Unable to find required krb5 library!')
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if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
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package="gssapi", uselib_store="GSSAPI"):
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krb5_define_syslib(conf, "gssapi", conf.env['LIB_GSSAPI'])
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if 'gssapi_krb5' in conf.env['LIB_GSSAPI']:
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krb5_define_syslib(conf, "gssapi_krb5", conf.env['LIB_GSSAPI'])
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else:
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raise Errors.WafError('Unable to find required gssapi library!')
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if conf.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'):
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if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
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package="gssrpc", uselib_store="GSSRPC"):
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krb5_define_syslib(conf, "gssrpc", conf.env['LIB_GSSRPC'])
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if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
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package="kdb", uselib_store="KDB5"):
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krb5_define_syslib(conf, "kdb5", conf.env['LIB_KDB5'])
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conf.CHECK_HEADERS('kdb.h', lib='kdb5')
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else:
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raise Errors.WafError('Unable to find required kdb5 library!')
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if conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
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package="kadm-server", uselib_store="KADM5SRV_MIT"):
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krb5_define_syslib(conf,
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"kadm5srv_mit",
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conf.env['LIB_KADM5SRV_MIT'])
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conf.CHECK_FUNCS_IN('kadm5_init', 'kadm5srv_mit')
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else:
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raise Errors.WafError('Unable to find required kadm5srv_mit '
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'library!')
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conf.define('USING_SYSTEM_KRB5', 1)
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del conf.env.HEIMDAL_KRB5_CONFIG
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krb5_conf_version = conf.cmd_and_log(conf.env.KRB5_CONFIG+['--version']).strip()
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krb5_version = krb5_conf_version.split()[-1]
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# drop '-prerelease' suffix
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if krb5_version.find('-') > 0:
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krb5_version = krb5_version.split("-")[0]
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if parse_version(krb5_version) < parse_version(krb5_required_version):
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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))
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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))
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Logs.error('ERROR: You may try to build with embedded Heimdal Kerberos by not specifying --with-system-mitkrb5')
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sys.exit(1)
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else:
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Logs.info('MIT Kerberos %s detected, MIT krb5 build can proceed' % (krb5_version))
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conf.define('USING_SYSTEM_MITKRB5', '"%s"' % krb5_version)
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conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5')
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conf.CHECK_HEADERS('krb5.h krb5/localauth_plugin.h', lib='krb5')
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possible_gssapi_headers="gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_ext.h gssapi/gssapi_krb5.h gssapi/gssapi_oid.h"
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conf.CHECK_HEADERS(possible_gssapi_headers, lib='gssapi')
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conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto')
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conf.CHECK_FUNCS_IN('des_set_key','crypto')
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conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1')
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conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken')
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conf.CHECK_HEADERS('profile.h', lib='krb5')
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if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi gssapi_krb5'):
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have_gssapi=True
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if not have_gssapi:
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if conf.env.KRB5_CONFIG and conf.env.KRB5_CONFIG != 'heimdal':
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Logs.error("ERROR: WAF build with MIT Krb5 requires working GSSAPI implementation")
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sys.exit(1)
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conf.CHECK_FUNCS_IN('''
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gss_wrap_iov
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gss_krb5_import_cred
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gss_get_name_attribute
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gss_mech_krb5
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gss_oid_equal
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gss_inquire_sec_context_by_oid
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gsskrb5_extract_authz_data_from_sec_context
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gss_krb5_export_lucid_sec_context
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gss_import_cred gss_export_cred
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gss_acquire_cred_from
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''', 'gssapi gssapi_krb5')
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conf.CHECK_VARIABLE('GSS_KRB5_CRED_NO_CI_FLAGS_X',
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headers=possible_gssapi_headers, lib='gssapi gssapi_krb5')
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conf.CHECK_FUNCS('''
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krb5_auth_con_getrecvsubkey
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krb5_auth_con_getsendsubkey
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krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes
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krb5_set_default_tgs_ktypes krb5_principal2salt
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krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey
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krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes
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krb5_get_default_in_tkt_etypes krb5_free_data_contents
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krb5_principal_get_comp_string krb5_free_unparsed_name
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krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init
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krb5_krbhst_get_addrinfo
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krb5_crypto_init krb5_crypto_destroy
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krb5_c_verify_checksum krb5_principal_compare_any_realm
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krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request
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krb5_get_renewed_creds krb5_free_error_contents
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initialize_krb5_error_table krb5_get_init_creds_opt_alloc
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krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error
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krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype
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krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds
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krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm
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krb5_get_init_creds_keyblock krb5_get_init_creds_keytab
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krb5_make_principal krb5_build_principal_alloc_va
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krb5_cc_get_lifetime krb5_cc_retrieve_cred
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krb5_cc_copy_creds
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krb5_free_checksum_contents krb5_c_make_checksum krb5_create_checksum
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krb5_config_get_bool_default krb5_get_profile
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krb5_data_copy
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krb5_init_keyblock krb5_principal_set_realm krb5_principal_get_type
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krb5_principal_set_type
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krb5_warnx
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krb5_get_prompt_types
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krb5_mk_req_extended krb5_kt_compare
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krb5_free_enctypes
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krb5_free_string
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''',
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lib='krb5 k5crypto',
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headers='krb5.h')
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conf.CHECK_DECLS('''krb5_get_credentials_for_user
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krb5_auth_con_set_req_cksumtype''',
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headers='krb5.h', lib='krb5', always=True)
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conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h', lib='krb5')
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conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h', lib='krb5')
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conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h', lib='krb5')
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conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h', lib='krb5')
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conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h', lib='krb5', mandatory=True)
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conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h', lib='krb5', mandatory=True)
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conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h', lib='krb5')
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conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key',
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headers='krb5.h',
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lib='krb5',
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define='HAVE_KRB5_KEYTAB_ENTRY_KEY')
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conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock',
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headers='krb5.h',
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lib='krb5',
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define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK')
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conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic',
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headers='krb5.h',
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lib='krb5',
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define='HAVE_MAGIC_IN_KRB5_ADDRESS')
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conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype',
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headers='krb5.h',
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lib='krb5',
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define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS')
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conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket',
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headers='krb5.h',
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lib='krb5',
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define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ')
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conf.CHECK_STRUCTURE_MEMBER('krb5_prompt', 'type',
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headers='krb5.h',
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lib='krb5',
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define='HAVE_KRB5_PROMPT_TYPE')
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conf.CHECK_CODE('krb5_trace_info', 'HAVE_KRB5_TRACE_INFO',
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headers='krb5.h', lib='krb5')
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conf.CHECK_CODE('struct krb5_trace_info', 'HAVE_KRB5_TRACE_INFO_STRUCT',
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headers='krb5.h', lib='krb5')
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conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h', lib='krb5')
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conf.CHECK_CODE('''
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krb5_context ctx;
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krb5_get_init_creds_opt *opt = NULL;
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krb5_get_init_creds_opt_free(ctx, opt);
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''',
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'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT',
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headers='krb5.h', link=False,
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lib='krb5',
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msg="Checking whether krb5_get_init_creds_opt_free takes a context argument")
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conf.CHECK_CODE('''
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const krb5_data *pkdata;
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krb5_context context;
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krb5_principal principal;
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pkdata = krb5_princ_component(context, principal, 0);
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''',
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'HAVE_KRB5_PRINC_COMPONENT',
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headers='krb5.h', lib='krb5',
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msg="Checking whether krb5_princ_component is available")
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conf.CHECK_CODE('''
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int main(void) {
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char buf[256];
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krb5_enctype_to_string(1, buf, 256);
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return 0;
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}''',
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'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG',
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headers='krb5.h', lib='krb5 k5crypto',
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addmain=False, cflags=conf.env['WERROR_CFLAGS'],
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msg="Checking whether krb5_enctype_to_string takes size_t argument")
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conf.CHECK_CODE('''
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int main(void) {
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krb5_context context = NULL;
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char *str = NULL;
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krb5_enctype_to_string(context, 1, &str);
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if (str) free (str);
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return 0;
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}''',
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'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG',
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headers='krb5.h stdlib.h', lib='krb5',
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addmain=False, cflags=conf.env['WERROR_CFLAGS'],
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msg="Checking whether krb5_enctype_to_string takes krb5_context argument")
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conf.CHECK_CODE('''
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int main(void) {
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krb5_context ctx = NULL;
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krb5_principal princ = NULL;
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const char *str = krb5_princ_realm(ctx, princ)->data;
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return 0;
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}''',
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'HAVE_KRB5_PRINC_REALM',
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headers='krb5.h', lib='krb5',
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addmain=False,
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msg="Checking whether the macro krb5_princ_realm is defined")
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conf.CHECK_CODE('''
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int main(void) {
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krb5_context context;
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krb5_principal principal;
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const char *realm; realm = krb5_principal_get_realm(context, principal);
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return 0;
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}''',
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'HAVE_KRB5_PRINCIPAL_GET_REALM',
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headers='krb5.h', lib='krb5',
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addmain=False,
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msg="Checking whether krb5_principal_get_realm is defined")
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conf.CHECK_CODE('''
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krb5_enctype enctype;
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enctype = ENCTYPE_ARCFOUR_HMAC_MD5;
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''',
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'_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5',
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headers='krb5.h', lib='krb5',
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msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available");
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conf.CHECK_CODE('''
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krb5_enctype enctype;
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enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56;
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''',
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'_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56',
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headers='krb5.h', lib='krb5',
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msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available");
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conf.CHECK_CODE('''
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krb5_keytype keytype;
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keytype = KEYTYPE_ARCFOUR_56;
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''',
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'_HAVE_KEYTYPE_ARCFOUR_56',
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headers='krb5.h', lib='krb5',
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msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available");
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if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
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conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1')
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if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
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conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1')
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conf.CHECK_CODE('''
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krb5_enctype enctype;
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enctype = ENCTYPE_ARCFOUR_HMAC;
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''',
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'HAVE_ENCTYPE_ARCFOUR_HMAC',
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headers='krb5.h', lib='krb5',
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msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available");
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conf.CHECK_CODE('''
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krb5_enctype enctype;
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enctype = ENCTYPE_ARCFOUR_HMAC_EXP;
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''',
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'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP',
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headers='krb5.h', lib='krb5',
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msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available");
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conf.CHECK_CODE('''
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krb5_context context;
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krb5_keytab keytab;
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krb5_init_context(&context);
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return krb5_kt_resolve(context, "WRFILE:api", &keytab);
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''',
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'HAVE_WRFILE_KEYTAB',
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headers='krb5.h', lib='krb5', execute=True,
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msg="Checking whether the WRFILE -keytab is supported");
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# Check for KRB5_DEPRECATED handling
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conf.CHECK_CODE('''#define KRB5_DEPRECATED 1
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#include <krb5.h>''',
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'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False,
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link=False,
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lib='krb5',
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msg="Checking for KRB5_DEPRECATED define taking an identifier")
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conf.CHECK_CODE('''
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krb5_creds creds;
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creds.flags.b.initial = 0;
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''',
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'HAVE_FLAGS_IN_KRB5_CREDS',
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headers='krb5.h', lib='krb5', execute=False,
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msg="Checking whether krb5_creds have flags property")
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# Check for MIT KDC
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if conf.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'):
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Logs.info("Looking for MIT KDC")
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conf.DEFINE('SAMBA_USES_MITKDC', 1);
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kdc_path_list = [ '/usr/sbin', '/usr/lib/mit/sbin']
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if getattr(Options.options, 'with_system_mitkdc', None):
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conf.DEFINE('MIT_KDC_PATH', '"' + Options.options.with_system_mitkdc + '"')
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else:
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conf.find_program('krb5kdc', path_list=kdc_path_list, var='MIT_KDC_BINARY', mandatory=True)
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conf.DEFINE('MIT_KDC_PATH', '"' + " ".join(conf.env.MIT_KDC_BINARY) + '"')
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