# HG changeset patch # User weijun # Date 1234418612 -28800 # Node ID a2ef801475da70ad34390ee92e94890e158ef96d # Parent 4f67787d79d325293399d4d13bc6431c449de26e 6789935: cross-realm capath search error Reviewed-by: nobody --- a/src/share/classes/sun/security/krb5/Realm.java Fri Feb 06 11:38:56 2009 +0800 +++ b/src/share/classes/sun/security/krb5/Realm.java Thu Feb 12 14:03:32 2009 +0800 @@ -1,5 +1,5 @@ /* - * Portions Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved. + * Portions Copyright 2000-2009 Sun Microsystems, Inc. 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 @@ -39,11 +39,9 @@ import sun.security.krb5.internal.Krb5; import sun.security.util.*; import java.io.IOException; -import java.io.OutputStream; +import java.util.Deque; import java.util.StringTokenizer; -import java.util.Vector; -import java.util.Stack; -import java.util.EmptyStackException; +import java.util.LinkedList; /** * Implements the ASN.1 Realm type. @@ -339,10 +337,7 @@ * to have a direct path to MOONLITE.ORG and MOONLITE.COM * in turn to IBM.COM. */ - - private static String[] parseCapaths(String cRealm, String sRealm) throws KrbException { - String[] retList = null; - + private static String[] parseCapaths(String cRealm, String sRealm) { Config cfg = null; try { cfg = Config.getInstance(); @@ -353,127 +348,78 @@ } return null; } - - String intermediaries = cfg.getDefault(sRealm, cRealm); - - if (intermediaries == null) { - if (DEBUG) { - System.out.println(">>> Realm parseCapaths: no cfg entry"); - } + // partial path + Deque<String> partial = new LinkedList<String>(); + if (parseCapaths0(cRealm, sRealm, sRealm, cfg, partial, 0)) { + return partial.toArray(new String[0]); + } else { return null; } + } - String tempTarget = null, tempRealm = null; - StringTokenizer strTok = null; - Stack<String> iStack = new Stack<String> (); - - /* - * I don't expect any more than a handful of intermediaries. - */ - Vector<String> tempList = new Vector<String> (8, 8); - - /* - * The initiator at first location. - */ - tempList.add(cRealm); - - int count = 0; // For debug only + /** + * Helper recursive method + * @param cRealm the initiating realm + * @param sRealm the final target realm + * @param target the current target + * @param partial partially created path + * @return true if established + */ + private static boolean parseCapaths0(String cRealm, String sRealm, + String target, Config cfg, Deque<String> partial, int step) { + String intermediaries = cfg.getDefault(target, cRealm); if (DEBUG) { - tempTarget = sRealm; + System.out.println(">>> Realm parseCapaths at " + target + + ": available paths are [" + intermediaries + "]"); } - - do { - if (DEBUG) { - count++; - System.out.println(">>> Realm parseCapaths: loop " + - count + ": target=" + tempTarget); - } - - if (intermediaries != null && - !intermediaries.equals(PrincipalName.REALM_COMPONENT_SEPARATOR_STR)) - { + if (intermediaries == null) { + if (step == 0) { + // The first round: client and target must be included if (DEBUG) { - System.out.println(">>> Realm parseCapaths: loop " + - count + ": intermediaries=[" + - intermediaries + "]"); + System.out.println( + ">>> Realm parseCapaths: fail at first step"); } - - /* - * We have one or more space-separated intermediary realms. - * Stack them. - */ - strTok = new StringTokenizer(intermediaries, " "); - while (strTok.hasMoreTokens()) - { - tempRealm = strTok.nextToken(); - if (!tempRealm.equals(PrincipalName. - REALM_COMPONENT_SEPARATOR_STR) && - !iStack.contains(tempRealm)) { - iStack.push(tempRealm); - if (DEBUG) { - System.out.println(">>> Realm parseCapaths: loop " + - count + - ": pushed realm on to stack: " + - tempRealm); - } - } else if (DEBUG) { - System.out.println(">>> Realm parseCapaths: loop " + - - count + - ": ignoring realm: [" + - tempRealm + "]"); - } + return false; + } else { + // Check intermediaries: not-exist is equal to "." + if (DEBUG) { + System.out.println( + ">>> Realm parseCapaths: direct path is assumed"); } - } else if (DEBUG) { - System.out.println(">>> Realm parseCapaths: loop " + - count + - ": no intermediaries"); - } - - /* - * Get next intermediary realm from the stack - */ - - try { - tempTarget = iStack.pop(); - } catch (EmptyStackException exc) { - tempTarget = null; - } - - if (tempTarget == null) { - /* - * No more intermediaries. We're done. - */ - break; - } - - tempList.add(tempTarget); - - if (DEBUG) { - System.out.println(">>> Realm parseCapaths: loop " + count + - ": added intermediary to list: " + - tempTarget); - } - - intermediaries = cfg.getDefault(tempTarget, cRealm); - - } while (true); - - retList = new String[tempList.size()]; - try { - retList = tempList.toArray(retList); - } catch (ArrayStoreException exc) { - retList = null; - } - - if (DEBUG && retList != null) { - for (int i = 0; i < retList.length; i++) { - System.out.println(">>> Realm parseCapaths [" + i + - "]=" + retList[i]); + partial.addFirst(cRealm); + return true; } } - - return retList; + StringTokenizer strTok = new StringTokenizer(intermediaries, " "); + while (strTok.hasMoreTokens()) { + String one = strTok.nextToken(); + if (DEBUG) { + System.out.println(">>> Realm parseCapaths at " + target + + ": Trying " + one); + } + if (one.equals(PrincipalName.REALM_COMPONENT_SEPARATOR_STR) + || one.equals(cRealm)) { + if (DEBUG) { + System.out.println(">>> Realm parseCapaths at " + target + + ": Done!"); + } + partial.addFirst(cRealm); + return true; + } + if (partial.contains(one) || one.equals(sRealm)) { + if (DEBUG) { + System.out.println(">>> Realm parseCapaths at " + target + + ": Loop found. Ignored"); + } + continue; + } + partial.addFirst(one); + if (parseCapaths0(cRealm, sRealm, one, cfg, partial, step+1)) { + return true; + } + partial.removeFirst(); + } + return false; } /** --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/sun/security/krb5/ParseCAPaths.java Thu Feb 12 14:03:32 2009 +0800 @@ -0,0 +1,98 @@ +/* + * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ +/* + * @test + * @bug 6789935 + * @summary cross-realm capath search error + */ + +import java.util.Arrays; +import sun.security.krb5.Realm; + +public class ParseCAPaths { + static boolean failed = false; + public static void main(String[] args) throws Exception { + System.setProperty("java.security.krb5.conf", System.getProperty("test.src", ".") +"/krb5-capaths.conf"); + //System.setProperty("sun.security.krb5.debug", "true"); + + // Standard example + check("ANL.GOV", "TEST.ANL.GOV", "ANL.GOV"); + check("ANL.GOV", "ES.NET", "ANL.GOV"); + check("ANL.GOV", "PNL.GOV", "ANL.GOV", "ES.NET"); + check("ANL.GOV", "NERSC.GOV", "ANL.GOV", "ES.NET"); + // Hierachical + check("N1.N.COM", "N2.N.COM", "N1.N.COM", "N.COM"); // 2 common + check("N1.N.COM", "N2.N3.COM", "N1.N.COM", "N.COM", // 1 common + "COM", "N3.COM"); + check("N1.COM", "N2.COM", "N1.COM", "COM"); // 1 common + check("N1", "N2", "N1"); // 0 common + // Extra garbages + check("A1.COM", "A4.COM", "A1.COM", "A2.COM"); + check("B1.COM", "B3.COM", "B1.COM", "B2.COM"); + // Missing is "." + check("C1.COM", "C3.COM", "C1.COM", "C2.COM"); + // Multiple path + check("D1.COM", "D4.COM", "D1.COM", "D2.COM"); + check("E1.COM", "E4.COM", "E1.COM", "E2.COM"); + check("F1.COM", "F4.COM", "F1.COM", "F9.COM"); + // Infinite loop + check("G1.COM", "G3.COM", "G1.COM", "COM"); + check("H1.COM", "H3.COM", "H1.COM"); + check("I1.COM", "I4.COM", "I1.COM", "I5.COM"); + + if (failed) { + throw new Exception("Failed somewhere."); + } + } + + static void check(String from, String to, String... paths) { + try { + check2(from, to, paths); + } catch (Exception e) { + failed = true; + e.printStackTrace(); + } + } + static void check2(String from, String to, String... paths) + throws Exception { + System.out.println(from + " -> " + to); + System.out.println(" expected: " + Arrays.toString(paths)); + String[] result = Realm.getRealmsList(from, to); + System.out.println(" result: " + Arrays.toString(result)); + if (result == null) { + if (paths.length == 0) { + // OK + } else { + throw new Exception("Shouldn't have a valid path."); + } + } else if(result.length != paths.length) { + throw new Exception("Length of path not correct"); + } else { + for (int i=0; i<result.length; i++) { + if (!result[i].equals(paths[i])) { + throw new Exception("Path not same"); + } + } + } + } +} --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/sun/security/krb5/krb5-capaths.conf Thu Feb 12 14:03:32 2009 +0800 @@ -0,0 +1,87 @@ +[capaths] + +# Standard + +ANL.GOV = { + TEST.ANL.GOV = . + PNL.GOV = ES.NET + NERSC.GOV = ES.NET + ES.NET = . +} +TEST.ANL.GOV = { + ANL.GOV = . +} +PNL.GOV = { + ANL.GOV = ES.NET +} +NERSC.GOV = { + ANL.GOV = ES.NET +} +ES.NET = { + ANL.GOV = . +} + +# Extra garbages + +A1.COM = { + A2.COM = . + A4.COM = A2.COM + A3.COM = A4.COM + A3.COM = A2.COM +} + +B1.COM = { + B2.COM = . + B3.COM = B2.COM + B3.COM = B4.COM +} + +# Missing is "." + +C1.COM = { + C3.COM = C2.COM +} + +# Multiple paths + +D1.COM = { + D2.COM = . + D3.COM = . + D4.COM = D2.COM + D4.COM = D3.COM +} + +E1.COM = { + E2.COM = . + E3.COM = . + E4.COM = E2.COM E3.COM +} + +# Shortest or First? + +F1.COM = { + F2.COM = . + F3.COM = F2.COM + F4.COM = F9.COM + F4.COM = F3.COM + F4.COM = F2.COM +} + +# Infinite loop + +G1.COM = { + G2.COM = G3.COM + G3.COM = G2.COM +} + +H1.COM = { + H2.COM = H3.COM + H3.COM = H2.COM + H3.COM = . +} + +I1.COM = { + I2.COM = I3.COM + I3.COM = I2.COM + I4.COM = I2.COM I5.COM +}