Add options for fudging or ignoring times in verifyzone.

git-svn-id: https://svn.verisignlabs.com/jdnssec/tools/trunk@224 4cbd57fe-54e5-0310-bd9a-f30fe5ea5e6e

ChangeLog

@@ -1,3 +1,8 @@
+2010-12-14  Blacka  <davidb@verisignlabs.com>
+
+	* jdnssec-verifyzone: Add options to either fudge or ignore RRSIG
+	inception and expiration times.
+
 2010-12-06  David Blacka  <davidb@verisignlabs.com>
 
 	* jdnssec-verifyzone: Complete refactored the verification code to

src/com/verisignlabs/dnssec/cl/VerifyZone.java

@@ -50,7 +50,8 @@ public class VerifyZone
 {
   private static Logger log;
 
-  // A log formatter that strips away all of the noise that the default SimpleFormatter has
+  // A log formatter that strips away all of the noise that the default
+  // SimpleFormatter has
   private static class MyLogFormatter extends java.util.logging.Formatter
   {
     @Override
@@ -75,10 +76,11 @@ public class VerifyZone
   private static class CLIState
   {
     private Options opts;
-    //    public boolean  strict   = false;
-    //    public File     keydir   = null;
     public String   zonefile    = null;
     public String[] keyfiles    = null;
+    public int      startfudge  = 0;
+    public int      expirefudge = 0;
+    public boolean  ignoreTime  = false;
 
     public CLIState()
     {
@@ -102,7 +104,7 @@ public class VerifyZone
       OptionBuilder.withLongOpt("verbose");
       OptionBuilder.withArgName("level");
       OptionBuilder.withDescription("verbosity level -- 0 is silence, "
-          + "5 is debug information, 6 is trace information.\n" + "default is level 5.");
+          + "5 is debug information, 6 is trace information. default is level 5.");
       opts.addOption(OptionBuilder.create('v'));
 
       OptionBuilder.hasArg();
@@ -110,6 +112,22 @@ public class VerifyZone
       OptionBuilder.withLongOpt("alg-alias");
       OptionBuilder.withDescription("Define an alias for an algorithm");
       opts.addOption(OptionBuilder.create('A'));
+
+      OptionBuilder.hasOptionalArg();
+      OptionBuilder.withLongOpt("sig-start-fudge");
+      OptionBuilder.withArgName("seconds");
+      OptionBuilder.withDescription("'fudge' RRSIG inception times by 'seconds' seconds.");
+      opts.addOption(OptionBuilder.create('S'));
+
+      OptionBuilder.hasOptionalArg();
+      OptionBuilder.withLongOpt("sig-expire-fudge");
+      OptionBuilder.withArgName("seconds");
+      OptionBuilder.withDescription("'fudge' RRSIG expiration times by 'seconds' seconds.");
+      opts.addOption(OptionBuilder.create('E'));
+
+      OptionBuilder.withLongOpt("ignore-time");
+      OptionBuilder.withDescription("Ignore RRSIG inception and expiration time errors.");
+      opts.addOption(OptionBuilder.create());
     }
 
     public void parseCommandLine(String[] args)
@@ -153,6 +171,22 @@ public class VerifyZone
         org.xbill.DNS.Options.set("multiline");
       }
 
+      if (cli.hasOption("ignore-time"))
+      {
+        ignoreTime = true;
+      }
+
+      String optstr = null;
+      if ((optstr = cli.getOptionValue('S')) != null)
+      {
+        startfudge = parseInt(optstr, 0);
+      }
+
+      if ((optstr = cli.getOptionValue('E')) != null)
+      {
+        expirefudge = parseInt(optstr, 0);
+      }
+
       String[] optstrs = null;
       if ((optstrs = cli.getOptionValues('A')) != null)
       {
@@ -207,7 +241,8 @@ public class VerifyZone
 
       // print our own usage statement:
       f.printHelp(out, 75, "jdnssec-verifyzone [..options..] zonefile "
-          + "[keyfile [keyfile...]]", null, opts, HelpFormatter.DEFAULT_LEFT_PAD,
+                      + "[keyfile [keyfile...]]", null, opts,
+                  HelpFormatter.DEFAULT_LEFT_PAD,
                   HelpFormatter.DEFAULT_DESC_PAD, null);
 
       out.flush();
@@ -242,6 +277,9 @@ public class VerifyZone
   public static void execute(CLIState state) throws Exception
   {
     ZoneVerifier zoneverifier = new ZoneVerifier();
+    zoneverifier.getVerifier().setStartFudge(state.startfudge);
+    zoneverifier.getVerifier().setExpireFudge(state.expirefudge);
+    zoneverifier.getVerifier().setIgnoreTime(state.ignoreTime);
 
     List records = ZoneUtils.readZoneFile(state.zonefile, null);
 

src/com/verisignlabs/dnssec/security/DnsSecVerifier.java

@@ -94,8 +94,7 @@ public class DnsSecVerifier implements Verifier
       for (Iterator i = l.iterator(); i.hasNext();)
       {
         DnsKeyPair p = (DnsKeyPair) i.next();
-        if (p.getDNSKEYAlgorithm() == algorithm
+        if (p.getDNSKEYAlgorithm() == algorithm && p.getDNSKEYFootprint() == keyid)
-            && p.getDNSKEYFootprint() == keyid)
         {
           return p;
         }
@@ -108,6 +107,7 @@ public class DnsSecVerifier implements Verifier
   private int             mStartFudge    = 0;
   private int             mExpireFudge   = 0;
   private boolean         mVerifyAllSigs = false;
+  private boolean         mIgnoreTime    = false;
 
   private Logger          log;
 
@@ -153,8 +153,12 @@ public class DnsSecVerifier implements Verifier
     mVerifyAllSigs = v;
   }
 
-  private DnsKeyPair findCachedKey(Cache cache, Name name, int algorithm,
+  public void setIgnoreTime(boolean v)
-                                   int footprint)
+  {
+    mIgnoreTime = v;
+  }
+
+  private DnsKeyPair findCachedKey(Cache cache, Name name, int algorithm, int footprint)
   {
     RRset[] keysets = cache.findAnyRecords(name, Type.KEY);
     if (keysets == null) return null;
@@ -166,8 +170,7 @@ public class DnsSecVerifier implements Verifier
       Object o = i.next();
       if (!(o instanceof DNSKEYRecord)) continue;
       DNSKEYRecord keyrec = (DNSKEYRecord) o;
-      if (keyrec.getAlgorithm() == algorithm
+      if (keyrec.getAlgorithm() == algorithm && keyrec.getFootprint() == footprint)
-          && keyrec.getFootprint() == footprint)
       {
         return new DnsKeyPair(keyrec, (PrivateKey) null);
       }
@@ -176,8 +179,7 @@ public class DnsSecVerifier implements Verifier
     return null;
   }
 
-  private DnsKeyPair findKey(Cache cache, Name name, int algorithm,
+  private DnsKeyPair findKey(Cache cache, Name name, int algorithm, int footprint)
-                             int footprint)
   {
     DnsKeyPair pair = mKeyStore.find(name, algorithm, footprint);
     if (pair == null && cache != null)
@@ -194,17 +196,17 @@ public class DnsSecVerifier implements Verifier
     if (!rrset.getName().equals(sigrec.getName()))
     {
       log.fine("Signature name does not match RRset name");
-      if (reasons != null)
+      if (reasons != null) reasons.add("Signature name does not match RRset name");
-        reasons.add("Signature name does not match RRset name");
       return DNSSEC.Failed;
     }
     if (rrset.getType() != sigrec.getTypeCovered())
     {
       log.fine("Signature type does not match RRset type");
-      if (reasons != null)
+      if (reasons != null) reasons.add("Signature type does not match RRset type");
-        reasons.add("Signature type does not match RRset type");
     }
 
+    if (mIgnoreTime) return DNSSEC.Secure;
+
     Date now = new Date();
     Date start = sigrec.getTimeSigned();
     Date expire = sigrec.getExpire();
@@ -231,8 +233,7 @@ public class DnsSecVerifier implements Verifier
       }
       if (now.after(expire))
       {
-        log.fine("Signature has expired (now = " + now + ", sig expires = "
+        log.fine("Signature has expired (now = " + now + ", sig expires = " + expire);
-            + expire);
         if (reasons != null) reasons.add("Signature has expired.");
         return DNSSEC.Failed;
       }
@@ -254,14 +255,13 @@ public class DnsSecVerifier implements Verifier
    *         could not be completed (usually because the public key was not
    *         available).
    */
-  public byte verifySignature(RRset rrset, RRSIGRecord sigrec, Cache cache,
+  public byte verifySignature(RRset rrset, RRSIGRecord sigrec, Cache cache, List reasons)
-                              List reasons)
   {
     byte result = validateSignature(rrset, sigrec, reasons);
     if (result != DNSSEC.Secure) return result;
 
-    DnsKeyPair keypair = findKey(cache, sigrec.getSigner(), sigrec
+    DnsKeyPair keypair = findKey(cache, sigrec.getSigner(), sigrec.getAlgorithm(),
-        .getAlgorithm(), sigrec.getFootprint());
+                                 sigrec.getFootprint());
 
     if (keypair == null)
     {
@@ -288,8 +288,7 @@ public class DnsSecVerifier implements Verifier
 
       if (!signer.verify(sig))
       {
-        if (reasons != null)
+        if (reasons != null) reasons.add("Signature failed to verify cryptographically");
-          reasons.add("Signature failed to verify cryptographically");
         log.fine("Signature failed to verify cryptographically");
         return DNSSEC.Failed;
       }
@@ -304,8 +303,7 @@ public class DnsSecVerifier implements Verifier
     {
       log.severe("Security error: " + e);
     }
-    if (reasons != null)
+    if (reasons != null) reasons.add("Signature failed to verify due to exception");
-      reasons.add("Signature failed to verify due to exception");
     log.fine("Signature failed to verify due to exception");
     return DNSSEC.Insecure;
   }

src/com/verisignlabs/dnssec/security/ZoneVerifier.java

@@ -110,6 +110,11 @@ public class ZoneVerifier
     mBAcmp = new ByteArrayComparator();
   }
 
+  public DnsSecVerifier getVerifier()
+  {
+    return mVerifier;
+  }
+
   private static String key(Name n, int type)
   {
     return n.toString() + ':' + type;
@@ -231,7 +236,8 @@ public class ZoneVerifier
     // All RRs at the zone apex are normal
     if (n.equals(mZoneName)) return NodeType.NORMAL;
 
-    // If the node is below a zone cut (either a delegation or DNAME), it is glue.
+    // If the node is below a zone cut (either a delegation or DNAME), it is
+    // glue.
     if (last_cut != null && n.subdomain(last_cut) && !n.equals(last_cut))
     {
       return NodeType.GLUE;
@@ -284,7 +290,8 @@ public class ZoneVerifier
       for (int type : typeset)
       {
         if (type == Type.RRSIG) continue;
-        // at delegation points, only DS RRs are signed (and NSEC, but those are checked separately)
+        // at delegation points, only DS RRs are signed (and NSEC, but those are
+        // checked separately)
         if (ntype == NodeType.DELEGATION && type != Type.DS) continue;
         // otherwise, verify the RRset.
         String k = key(n, type);
@@ -370,22 +377,6 @@ public class ZoneVerifier
     return result == DNSSEC.Secure ? 0 : 1;
   }
 
-  private String typesetToString(Set<Integer> typeset)
-  {
-    if (typeset == null) return "";
-
-    StringBuilder sb = new StringBuilder();
-    boolean first = true;
-    for (int type : typeset)
-    {
-      if (!first) sb.append(' ');
-      sb.append(Type.string(type));
-      first = false;
-    }
-
-    return sb.toString();
-  }
-
   private String typesToString(int[] types)
   {
     StringBuilder sb = new StringBuilder();
@@ -400,9 +391,23 @@ public class ZoneVerifier
     return sb.toString();
   }
 
+  private String typesetToString(Set<Integer> typeset)
+  {
+    if (typeset == null) return "";
+
+    int[] types = new int[typeset.size()];
+    int i = 0;
+    for (int type : typeset)
+    {
+      types[i++] = type;
+    }
+    return typesToString(types);
+  }
+
   private boolean checkTypeMap(Set<Integer> typeset, int[] types)
   {
-    // a null typeset means that we are expecting the typemap of an ENT, which should be empty.
+    // a null typeset means that we are expecting the typemap of an ENT, which
+    // should be empty.
     if (typeset == null) return types.length == 0;
 
     Set compareTypeset = new HashSet();
@@ -446,7 +451,8 @@ public class ZoneVerifier
 
   private boolean shouldCheckENTs(Name n, Set<Integer> typeset, NodeType ntype)
   {
-    // if we are just one (or zero) labels longer than the zonename, the node can't create a ENT
+    // if we are just one (or zero) labels longer than the zonename, the node
+    // can't create a ENT
     if (n.labels() <= mZoneName.labels() + 1) return false;
 
     // we probably won't ever get called for a GLUE node
@@ -455,7 +461,8 @@ public class ZoneVerifier
     // if we aren't doing opt-out, then all possible ENTs must be checked.
     if (mDNSSECType == DNSSECType.NSEC3) return true;
 
-    // if we are opt-out, and the node is an insecure delegation, don't check ENTs.
+    // if we are opt-out, and the node is an insecure delegation, don't check
+    // ENTs.
     if (ntype == NodeType.DELEGATION && !typeset.contains(Type.DS))
     {
       return false;
@@ -492,7 +499,7 @@ public class ZoneVerifier
     {
       log.warning("Typemap for NSEC3 RR " + hashname + " for " + n
           + " did not match what was expected. Expected '" + typesetToString(typeset)
-          + "', got '" + typesToString(nsec3.getTypes()));
+          + "', got '" + typesToString(nsec3.getTypes()) + "'");
       errors++;
     }
 
@@ -520,7 +527,8 @@ public class ZoneVerifier
 
     for (Iterator<Map.Entry<Name, MarkRRset>> i = mNSECMap.entrySet().iterator(); i.hasNext();)
     {
-      // check the internal ordering of the previous NSEC record.  This avoids looking at the last one, 
+      // check the internal ordering of the previous NSEC record. This avoids
+      // looking at the last one,
       // which is different.
       if (lastNSEC != null)
       {
@@ -536,7 +544,8 @@ public class ZoneVerifier
       Name n = entry.getKey();
       MarkRRset rrset = entry.getValue();
 
-      // check to see if the NSEC is marked.  If not, it was not correlated to a signed node.
+      // check to see if the NSEC is marked. If not, it was not correlated to a
+      // signed node.
       if (!rrset.getMark())
       {
         log.warning("NSEC RR for " + n + " appears to be extra.");
@@ -545,7 +554,8 @@ public class ZoneVerifier
 
       NSECRecord nsec = (NSECRecord) rrset.first();
 
-      // This is just a sanity check.  If this isn't true, we are constructing the
+      // This is just a sanity check. If this isn't true, we are constructing
+      // the
       // nsec map incorrectly.
       if (!n.equals(nsec.getName()))
       {
@@ -553,7 +563,8 @@ public class ZoneVerifier
         errors++;
       }
 
-      // If this is the first row, ensure that the owner name equals the zone name
+      // If this is the first row, ensure that the owner name equals the zone
+      // name
       if (lastNSEC == null && !n.equals(mZoneName))
       {
         log.warning("The first NSEC in the chain does not match the zone name: name = "
@@ -611,7 +622,8 @@ public class ZoneVerifier
 
     for (Iterator<Map.Entry<Name, MarkRRset>> i = mNSEC3Map.entrySet().iterator(); i.hasNext();)
     {
-      // check the internal ordering of the previous NSEC3 record.  This avoids looking at the last one, 
+      // check the internal ordering of the previous NSEC3 record. This avoids
+      // looking at the last one,
       // which is different.
       if (lastNSEC3 != null)
       {
@@ -627,7 +639,8 @@ public class ZoneVerifier
       Name n = entry.getKey();
       MarkRRset rrset = entry.getValue();
 
-      // check to see if the NSEC is marked.  If not, it was not correlated to a signed node.
+      // check to see if the NSEC is marked. If not, it was not correlated to a
+      // signed node.
       if (!rrset.getMark())
       {
         log.warning("NSEC3 RR for " + n + " appears to be extra.");
@@ -636,7 +649,8 @@ public class ZoneVerifier
 
       NSEC3Record nsec3 = (NSEC3Record) rrset.first();
 
-      // This is just a sanity check.  If this isn't true, we are constructing the
+      // This is just a sanity check. If this isn't true, we are constructing
+      // the
       // nsec3 map incorrectly.
       if (!n.equals(nsec3.getName()))
       {
@@ -650,7 +664,8 @@ public class ZoneVerifier
         firstNSEC3 = nsec3;
       }
       else
-      // Check that the prior NSEC3's next hashed name equals this row's hashed owner name.
+      // Check that the prior NSEC3's next hashed name equals this row's hashed
+      // owner name.
       {
         if (compareNSEC3Hashes(nsec3.getName(), lastNSEC3.getNext()) != 0)
         {