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178
test/jdk/sun/security/krb5/auto/RealmSpecificValues.java
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| /* | ||
| * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * This code is free software; you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License version 2 only, as | ||
| * published by the Free Software Foundation. | ||
| * | ||
| * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * version 2 for more details (a copy is included in the LICENSE file that | ||
| * accompanied this code). | ||
| * | ||
| * You should have received a copy of the GNU General Public License version | ||
| * 2 along with this work; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| * | ||
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| * or visit www.oracle.com if you need additional information or have any | ||
| * questions. | ||
| */ | ||
|
|
||
| import java.io.*; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Paths; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
|
|
||
| import jdk.test.lib.Asserts; | ||
| import sun.security.krb5.Config; | ||
|
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||
| /* | ||
| * @test | ||
| * @bug 8333772 | ||
| * @summary check krb5.conf reading on default and realm-specific values | ||
| * @library /test/lib | ||
| */ | ||
| public class RealmSpecificValues { | ||
|
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| static DebugMatcher cm = new DebugMatcher(); | ||
|
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| public static void main(String[] args) throws Exception { | ||
| System.setProperty("sun.security.krb5.debug", "true"); | ||
| System.setProperty("java.security.krb5.conf", "alternative-krb5.conf"); | ||
|
|
||
| // Defaults | ||
| writeConf(-1, -1, -1, -1, -1, -1); | ||
| test(true, 3, 30000); | ||
|
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| // Below has settings. For each setting we provide 3 cases: | ||
| // 1. Set in defaults, 2, set in realms, 3, both | ||
|
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| // udp = 0 is useful | ||
| writeConf(0, -1, -1, -1, -1, -1); | ||
| test(false, 3, 30000); | ||
| writeConf(-1, -1, -1, 0, -1, -1); | ||
| test(false, 3, 30000); | ||
| writeConf(1, -1, -1, 0, -1, -1); | ||
| test(false, 3, 30000); | ||
|
|
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| // max_retries = 0 is ignored | ||
| writeConf(-1, 0, -1, -1, -1, -1); | ||
| test(true, 3, 30000); | ||
| writeConf(-1, -1, -1, -1, 0, -1); | ||
| test(true, 3, 30000); | ||
| writeConf(-1, 6, -1, -1, 0, -1); // Note: 0 is ignored, it does not reset to default | ||
| test(true, 6, 30000); | ||
|
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| // max_retries = 1 is useful | ||
| writeConf(-1, 1, -1, -1, -1, -1); | ||
| test(true, 1, 30000); | ||
| writeConf(-1, -1, -1, -1, 1, -1); | ||
| test(true, 1, 30000); | ||
| writeConf(-1, 3, -1, -1, 1, -1); | ||
| test(true, 1, 30000); | ||
|
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| // timeout = 0 is ignored | ||
| writeConf(-1, -1, 0, -1, -1, -1); | ||
| test(true, 3, 30000); | ||
| writeConf(-1, -1, -1, -1, -1, 0); | ||
| test(true, 3, 30000); | ||
| writeConf(-1, -1, 10000, -1, -1, 0); | ||
| test(true, 3, 10000); | ||
|
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| // timeout > 0 is useful | ||
| writeConf(-1, -1, 10000, -1, -1, -1); | ||
| test(true, 3, 10000); | ||
| writeConf(-1, -1, -1, -1, -1, 10000); | ||
| test(true, 3, 10000); | ||
| writeConf(-1, -1, 20000, -1, -1, 10000); | ||
| test(true, 3, 10000); | ||
| } | ||
|
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| static void writeConf(int limit, int retries, int timeout, | ||
| int limitR, int retriesR, int timeoutR) throws Exception { | ||
|
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| String inDefaults = ""; | ||
| if (limit >= 0) inDefaults += "udp_preference_limit = " + limit + "\n"; | ||
| if (retries >= 0) inDefaults += "max_retries = " + retries + "\n"; | ||
| if (timeout >= 0) inDefaults += "kdc_timeout = " + timeout + "\n"; | ||
|
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| String inRealm = ""; | ||
| if (limitR >= 0) inRealm += "udp_preference_limit = " + limitR + "\n"; | ||
| if (retriesR >= 0) inRealm += "max_retries = " + retriesR + "\n"; | ||
| if (timeoutR >= 0) inRealm += "kdc_timeout = " + timeoutR + "\n"; | ||
|
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| String conf = "[libdefaults]\n" + | ||
| "default_realm = " + OneKDC.REALM + "\n" + | ||
| inDefaults + | ||
| "\n" + | ||
| "[realms]\n" + | ||
| OneKDC.REALM + " = {\n" + | ||
| "kdc = " + OneKDC.KDCHOST + ":12345\n" + | ||
| inRealm + | ||
| "}\n"; | ||
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| Files.writeString(Paths.get("alternative-krb5.conf"), conf); | ||
| } | ||
|
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| static void test(boolean isUDP, int retries, int timeout) throws Exception { | ||
|
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| PrintStream oldErr = System.err; | ||
| ByteArrayOutputStream bo = new ByteArrayOutputStream(); | ||
| System.setErr(new PrintStream(bo)); | ||
| try { | ||
| Config.refresh(); | ||
| Context.fromUserPass(OneKDC.USER, OneKDC.PASS, false); | ||
| } catch (Exception e) { | ||
| // will happen | ||
| } finally { | ||
| System.setErr(oldErr); | ||
| } | ||
|
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| String[] lines = new String(bo.toByteArray()).split("\n"); | ||
| for (String line: lines) { | ||
| if (cm.match(line)) { | ||
| System.out.println(line); | ||
| Asserts.assertEQ(cm.isUDP(), isUDP); | ||
| Asserts.assertEQ(cm.timeout(), timeout); | ||
| Asserts.assertEQ(cm.retries(), retries); | ||
| return; | ||
| } | ||
| } | ||
| Asserts.fail("Should not reach here"); | ||
| } | ||
|
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||
| /** | ||
| * A helper class to match the krb5 debug output: | ||
| * >>> KrbKdcReq send: kdc=kdc.rabbit.hole TCP:12345, timeout=30000, | ||
| * number of retries =3, #bytes=141 | ||
| */ | ||
| static class DebugMatcher { | ||
|
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| static final Pattern re = Pattern.compile( | ||
| ">>> KrbKdcReq send: kdc=\\S+ (TCP|UDP):\\d+, " + | ||
| "timeout=(\\d+), number of retries\\s*=(\\d+)"); | ||
|
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| Matcher matcher; | ||
|
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| boolean match(String line) { | ||
| matcher = re.matcher(line); | ||
| return matcher.find(); | ||
| } | ||
|
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| boolean isUDP() { | ||
| return matcher.group(1).equals("UDP"); | ||
| } | ||
|
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| int timeout() { | ||
| return Integer.parseInt(matcher.group(2)); | ||
| } | ||
|
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| int retries() { | ||
| return Integer.parseInt(matcher.group(3)); | ||
| } | ||
| } | ||
| } |