| 1 | import Logs, Options, sys
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| 2 |
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| 3 | # Check for kerberos
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| 4 | have_gssapi=False
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| 5 |
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| 6 | def krb5_define_syslib(conf, lib, deps):
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| 7 | found = 'FOUND_SYSTEMLIB_' + lib
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| 8 | if found in conf.env:
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| 9 | return
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| 10 | conf.SET_TARGET_TYPE(lib, 'SYSLIB')
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| 11 | conf.SET_SYSLIB_DEPS(lib, deps)
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| 12 | conf.env[found] = True
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| 13 |
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| 14 | Logs.info("Looking for kerberos features")
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| 15 | conf.find_program('krb5-config.heimdal', var='HEIMDAL_KRB5_CONFIG')
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| 16 |
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| 17 | if isinstance(Options.options.with_system_mitkrb5, list):
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| 18 | path_krb5_config = [x+'/bin' for x in Options.options.with_system_mitkrb5]
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| 19 | else:
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| 20 | path_krb5_config = None
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| 21 |
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| 22 | conf.find_program('krb5-config', path_list=path_krb5_config, var='KRB5_CONFIG')
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| 23 | if conf.env.KRB5_CONFIG:
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| 24 | conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
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| 25 | package="", uselib_store="KRB5")
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| 26 | krb5_define_syslib(conf, "krb5", conf.env['LIB_KRB5'])
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| 27 |
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| 28 | conf.CHECK_CFG(path=conf.env.KRB5_CONFIG, args="--cflags --libs",
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| 29 | package="gssapi", uselib_store="GSSAPI")
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| 30 | krb5_define_syslib(conf, "gssapi", conf.env['LIB_GSSAPI'])
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| 31 | if 'k5crypto' in conf.env['LIB_GSSAPI']:
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| 32 | krb5_define_syslib(conf, "k5crypto", conf.env['LIB_GSSAPI'])
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| 33 | if 'com_err' in conf.env['LIB_GSSAPI']:
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| 34 | krb5_define_syslib(conf, "com_err", conf.env['LIB_GSSAPI'])
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| 35 | if 'gssapi_krb5' in conf.env['LIB_GSSAPI']:
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| 36 | krb5_define_syslib(conf, "gssapi_krb5", conf.env['LIB_GSSAPI'])
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| 37 |
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| 38 | vendor = conf.cmd_and_log("%(path)s --vendor" % dict(path=conf.env.KRB5_CONFIG), dict())
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| 39 | conf.env.KRB5_VENDOR = vendor.strip().lower()
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| 40 | if conf.env.KRB5_VENDOR != 'heimdal':
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| 41 | conf.define('USING_SYSTEM_KRB5', 1)
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| 42 | del conf.env.HEIMDAL_KRB5_CONFIG
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| 43 | kversion = conf.cmd_and_log("%(path)s --version" % dict(path=conf.env.KRB5_CONFIG), dict()).strip()
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| 44 | kversion_split = kversion.split(' ')[-1].split('.')
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| 45 | # drop '-prerelease' suffix
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| 46 | if kversion_split[-1].find('-') > 0:
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| 47 | last_digit = kversion_split[-1].split('-')[0]
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| 48 | kversion_split[-1] = last_digit
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| 49 | kversion_check = map(int, kversion_split)
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| 50 | if kversion_check < [1, 9]:
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| 51 | Logs.error('ERROR: MIT krb5 build requires at least 1.9.0. %s is found and cannot be used' % (kversion))
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| 52 | Logs.error('ERROR: You may try to build with embedded Heimdal Kerebros by not specifying --with-system-mitkrb5')
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| 53 | sys.exit(1)
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| 54 | else:
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| 55 | Logs.info('%s is detected, MIT krb5 build can proceed' % (kversion))
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| 56 |
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| 57 | conf.CHECK_CFG(args="--cflags --libs", package="com_err", uselib_store="com_err")
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| 58 | conf.CHECK_FUNCS_IN('_et_list', 'com_err')
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| 59 | conf.CHECK_HEADERS('com_err.h', lib='com_err')
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| 60 |
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| 61 | conf.CHECK_HEADERS('krb5.h krb5/locate_plugin.h', lib='krb5')
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| 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"
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| 63 | conf.CHECK_HEADERS(possible_gssapi_headers, lib='gssapi')
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| 64 |
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| 65 | conf.CHECK_FUNCS_IN('krb5_encrypt_data', 'k5crypto')
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| 66 | conf.CHECK_FUNCS_IN('des_set_key','crypto')
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| 67 | conf.CHECK_FUNCS_IN('copy_Authenticator', 'asn1')
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| 68 | conf.CHECK_FUNCS_IN('roken_getaddrinfo_hostspec', 'roken')
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| 69 |
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| 70 | conf.CHECK_HEADERS('profile.h')
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| 71 |
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| 72 | if conf.CHECK_FUNCS_IN('gss_display_status', 'gssapi gssapi_krb5'):
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| 73 | have_gssapi=True
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| 74 |
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| 75 | if not have_gssapi:
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| 76 | if conf.env.KRB5_CONFIG and conf.env.KRB5_CONFIG != 'heimdal':
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| 77 | Logs.error("ERROR: WAF build with MIT Krb5 requires working GSSAPI implementation")
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| 78 | sys.exit(1)
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| 79 |
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| 80 | conf.CHECK_FUNCS_IN('''
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| 81 | gss_wrap_iov
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| 82 | gss_krb5_import_cred
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| 83 | gss_get_name_attribute
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| 84 | gss_mech_krb5
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| 85 | gss_oid_equal
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| 86 | gss_inquire_sec_context_by_oid
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| 87 | gsskrb5_extract_authz_data_from_sec_context
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| 88 | gss_krb5_export_lucid_sec_context
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| 89 | gss_import_cred gss_export_cred
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| 90 | ''', 'gssapi gssapi_krb5')
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| 91 | conf.CHECK_VARIABLE('GSS_KRB5_CRED_NO_CI_FLAGS_X', headers=possible_gssapi_headers)
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| 92 | conf.CHECK_FUNCS_IN('krb5_mk_req_extended krb5_kt_compare', 'krb5')
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| 93 | conf.CHECK_FUNCS('''
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| 94 | krb5_set_default_in_tkt_etypes krb5_set_default_tgs_enctypes
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| 95 | krb5_set_default_tgs_ktypes krb5_principal2salt
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| 96 | krb5_c_string_to_key krb5_get_pw_salt krb5_string_to_key_salt krb5_auth_con_setkey
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| 97 | krb5_auth_con_setuseruserkey krb5_get_permitted_enctypes
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| 98 | krb5_get_default_in_tkt_etypes krb5_free_data_contents
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| 99 | krb5_principal_get_comp_string krb5_free_unparsed_name
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| 100 | krb5_free_keytab_entry_contents krb5_kt_free_entry krb5_krbhst_init
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| 101 | krb5_krbhst_get_addrinfo
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| 102 | krb5_crypto_init krb5_crypto_destroy
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| 103 | krb5_c_verify_checksum krb5_principal_compare_any_realm
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| 104 | krb5_parse_name_norealm krb5_princ_size krb5_get_init_creds_opt_set_pac_request
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| 105 | krb5_get_renewed_creds krb5_free_error_contents
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| 106 | initialize_krb5_error_table krb5_get_init_creds_opt_alloc
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| 107 | krb5_get_init_creds_opt_free krb5_get_init_creds_opt_get_error
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| 108 | krb5_enctype_to_string krb5_fwd_tgt_creds krb5_auth_con_set_req_cksumtype
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| 109 | krb5_get_creds_opt_alloc krb5_get_creds_opt_set_impersonate krb5_get_creds
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| 110 | krb5_get_credentials_for_user krb5_get_host_realm krb5_free_host_realm
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| 111 | krb5_get_init_creds_keyblock krb5_get_init_creds_keytab
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| 112 | krb5_make_principal krb5_build_principal_alloc_va
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| 113 | krb5_cc_get_lifetime krb5_cc_retrieve_cred
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| 114 | krb5_free_checksum_contents krb5_c_make_checksum krb5_create_checksum
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| 115 | krb5_config_get_bool_default krb5_get_profile
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| 116 | krb5_data_copy
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| 117 | krb5_keyblock_init krb5_principal_set_realm krb5_principal_get_type
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| 118 | krb5_principal_set_type
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| 119 | krb5_warnx
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| 120 | krb5_get_prompt_types
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| 121 | ''',
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| 122 | lib='krb5 k5crypto')
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| 123 | conf.CHECK_DECLS('''krb5_get_credentials_for_user
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| 124 | krb5_auth_con_set_req_cksumtype''',
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| 125 | headers='krb5.h', always=True)
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| 126 | conf.CHECK_VARIABLE('AP_OPTS_USE_SUBKEY', headers='krb5.h')
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| 127 | conf.CHECK_VARIABLE('KV5M_KEYTAB', headers='krb5.h')
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| 128 | conf.CHECK_VARIABLE('KRB5_KU_OTHER_CKSUM', headers='krb5.h')
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| 129 | conf.CHECK_VARIABLE('KRB5_KEYUSAGE_APP_DATA_CKSUM', headers='krb5.h')
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| 130 | conf.CHECK_VARIABLE('ENCTYPE_AES128_CTS_HMAC_SHA1_96', headers='krb5.h')
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| 131 | conf.CHECK_VARIABLE('ENCTYPE_AES256_CTS_HMAC_SHA1_96', headers='krb5.h')
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| 132 | conf.CHECK_DECLS('KRB5_PDU_NONE', reverse=True, headers='krb5.h')
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| 133 | conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'key', headers='krb5.h',
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| 134 | define='HAVE_KRB5_KEYTAB_ENTRY_KEY')
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| 135 | conf.CHECK_STRUCTURE_MEMBER('krb5_keytab_entry', 'keyblock', headers='krb5.h',
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| 136 | define='HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK')
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| 137 | conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'magic', headers='krb5.h',
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| 138 | define='HAVE_MAGIC_IN_KRB5_ADDRESS')
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| 139 | conf.CHECK_STRUCTURE_MEMBER('krb5_address', 'addrtype', headers='krb5.h',
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| 140 | define='HAVE_ADDRTYPE_IN_KRB5_ADDRESS')
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| 141 | conf.CHECK_STRUCTURE_MEMBER('krb5_ap_req', 'ticket', headers='krb5.h',
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| 142 | define='HAVE_TICKET_POINTER_IN_KRB5_AP_REQ')
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| 143 | conf.CHECK_STRUCTURE_MEMBER('krb5_prompt', 'type', headers='krb5.h',
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| 144 | define='HAVE_KRB5_PROMPT_TYPE')
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| 145 |
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| 146 | conf.CHECK_TYPE('krb5_encrypt_block', headers='krb5.h')
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| 147 |
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| 148 | conf.CHECK_CODE('''
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| 149 | krb5_context ctx;
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| 150 | krb5_get_init_creds_opt *opt = NULL;
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| 151 | krb5_get_init_creds_opt_free(ctx, opt);
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| 152 | ''',
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| 153 | 'KRB5_CREDS_OPT_FREE_REQUIRES_CONTEXT',
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| 154 | headers='krb5.h', link=False,
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| 155 | msg="Checking whether krb5_get_init_creds_opt_free takes a context argument")
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| 156 | conf.CHECK_CODE('''
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| 157 | const krb5_data *pkdata;
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| 158 | krb5_context context;
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| 159 | krb5_principal principal;
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| 160 | pkdata = krb5_princ_component(context, principal, 0);
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| 161 | ''',
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| 162 | 'HAVE_KRB5_PRINC_COMPONENT',
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| 163 | headers='krb5.h', lib='krb5',
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| 164 | msg="Checking whether krb5_princ_component is available")
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| 165 |
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| 166 | conf.CHECK_CODE('''
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| 167 | int main(void) {
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| 168 | char buf[256];
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| 169 | krb5_enctype_to_string(1, buf, 256);
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| 170 | return 0;
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| 171 | }''',
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| 172 | 'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_SIZE_T_ARG',
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| 173 | headers='krb5.h', lib='krb5 k5crypto',
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| 174 | addmain=False, cflags=conf.env['WERROR_CFLAGS'],
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| 175 | msg="Checking whether krb5_enctype_to_string takes size_t argument")
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| 176 |
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| 177 | conf.CHECK_CODE('''
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| 178 | int main(void) {
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| 179 | krb5_context context = NULL;
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| 180 | char *str = NULL;
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| 181 | krb5_enctype_to_string(context, 1, &str);
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| 182 | if (str) free (str);
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| 183 | return 0;
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| 184 | }''',
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| 185 | 'HAVE_KRB5_ENCTYPE_TO_STRING_WITH_KRB5_CONTEXT_ARG',
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| 186 | headers='krb5.h stdlib.h', lib='krb5',
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| 187 | addmain=False, cflags=conf.env['WERROR_CFLAGS'],
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| 188 | msg="Checking whether krb5_enctype_to_string takes krb5_context argument")
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| 189 | conf.CHECK_CODE('''
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| 190 | int main(void) {
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| 191 | krb5_context ctx = NULL;
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| 192 | krb5_principal princ = NULL;
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| 193 | const char *str = krb5_princ_realm(ctx, princ)->data;
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| 194 | return 0;
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| 195 | }''',
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| 196 | 'HAVE_KRB5_PRINC_REALM',
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| 197 | headers='krb5.h', lib='krb5',
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| 198 | addmain=False,
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| 199 | msg="Checking whether the macro krb5_princ_realm is defined")
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| 200 | conf.CHECK_CODE('''
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| 201 | int main(void) {
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| 202 | krb5_context context;
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| 203 | krb5_principal principal;
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| 204 | const char *realm; realm = krb5_principal_get_realm(context, principal);
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| 205 | return 0;
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| 206 | }''',
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| 207 | 'HAVE_KRB5_PRINCIPAL_GET_REALM',
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| 208 | headers='krb5.h', lib='krb5',
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| 209 | addmain=False,
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| 210 | msg="Checking whether krb5_principal_get_realm is defined")
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| 211 | conf.CHECK_CODE('''
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| 212 | krb5_enctype enctype;
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| 213 | enctype = ENCTYPE_ARCFOUR_HMAC_MD5;
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| 214 | ''',
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| 215 | '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5',
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| 216 | headers='krb5.h', lib='krb5',
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| 217 | msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type definition is available");
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| 218 | conf.CHECK_CODE('''
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| 219 | krb5_enctype enctype;
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| 220 | enctype = ENCTYPE_ARCFOUR_HMAC_MD5_56;
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| 221 | ''',
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| 222 | '_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56',
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| 223 | headers='krb5.h', lib='krb5',
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| 224 | msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_MD5_56 key type definition is available");
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| 225 | conf.CHECK_CODE('''
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| 226 | krb5_keytype keytype;
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| 227 | keytype = KEYTYPE_ARCFOUR_56;
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| 228 | ''',
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| 229 | '_HAVE_KEYTYPE_ARCFOUR_56',
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| 230 | headers='krb5.h', lib='krb5',
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| 231 | msg="Checking whether the HAVE_KEYTYPE_ARCFOUR_56 key type definition is available");
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| 232 | if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
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| 233 | conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5', '1')
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| 234 | if conf.CONFIG_SET('_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56') and conf.CONFIG_SET('_HAVE_KEYTYPE_ARCFOUR_56'):
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| 235 | conf.DEFINE('HAVE_ENCTYPE_ARCFOUR_HMAC_MD5_56', '1')
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| 236 |
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| 237 | conf.CHECK_CODE('''
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| 238 | krb5_enctype enctype;
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| 239 | enctype = ENCTYPE_ARCFOUR_HMAC;
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| 240 | ''',
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| 241 | 'HAVE_ENCTYPE_ARCFOUR_HMAC',
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| 242 | headers='krb5.h', lib='krb5',
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| 243 | msg="Checking whether the ENCTYPE_ARCFOUR_HMAC key type definition is available");
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| 244 | conf.CHECK_CODE('''
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| 245 | krb5_enctype enctype;
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| 246 | enctype = ENCTYPE_ARCFOUR_HMAC_EXP;
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| 247 | ''',
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| 248 | 'HAVE_ENCTYPE_ARCFOUR_HMAC_EXP',
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| 249 | headers='krb5.h', lib='krb5',
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| 250 | msg="Checking whether the ENCTYPE_ARCFOUR_HMAC_EXP key type definition is available");
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| 251 |
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| 252 | conf.CHECK_CODE('''
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| 253 | krb5_context context;
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| 254 | krb5_keytab keytab;
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| 255 | krb5_init_context(&context);
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| 256 | return krb5_kt_resolve(context, "WRFILE:api", &keytab);
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| 257 | ''',
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| 258 | 'HAVE_WRFILE_KEYTAB',
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| 259 | headers='krb5.h', lib='krb5', execute=True,
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| 260 | msg="Checking whether the WRFILE:-keytab is supported");
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| 261 | # Check for KRB5_DEPRECATED handling
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| 262 | conf.CHECK_CODE('''#define KRB5_DEPRECATED 1
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| 263 | #include <krb5.h>''',
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| 264 | 'HAVE_KRB5_DEPRECATED_WITH_IDENTIFIER', addmain=False,
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| 265 | link=False,
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| 266 | msg="Checking for KRB5_DEPRECATED define taking an identifier")
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| 267 |
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| 268 | conf.CHECK_CODE('''
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| 269 | krb5_creds creds;
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| 270 | creds.flags.b.initial = 0;
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| 271 | ''',
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| 272 | 'HAVE_FLAGS_IN_KRB5_CREDS',
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| 273 | headers='krb5.h', lib='krb5', execute=False,
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| 274 | msg="Checking whether krb5_creds have flags property")
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