- Update FreeBSD Heimdal distribution to version 1.5.1. This also brings

  several new kerberos related libraries and applications to FreeBSD:
  o kgetcred(1) allows one to manually get a ticket for a particular service.
  o kf(1) securily forwards ticket to another host through an authenticated
    and encrypted stream.
  o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1)
    and other user kerberos operations. klist and kswitch are just symlinks
    to kcc(1) now.
  o kswitch(1) allows you to easily switch between kerberos credentials if
    you're running KCM.
  o hxtool(1) is a certificate management tool to use with PKINIT.
  o string2key(1) maps a password into key.
  o kdigest(8) is a userland tool to access the KDC's digest interface.
  o kimpersonate(8) creates a "fake" ticket for a service.

  We also now install manpages for some lirbaries that were not installed
  before, libheimntlm and libhx509.

- The new HEIMDAL version no longer supports Kerberos 4.  All users are
  recommended to switch to Kerberos 5.

- Weak ciphers are now disabled by default.  To enable DES support (used
  by telnet(8)), use "allow_weak_crypto" option in krb5.conf.

- libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings
  disabled due to the function they use (krb5_get_err_text(3)) being
  deprecated.  I plan to work on this next.

- Heimdal's KDC now require sqlite to operate.  We use the bundled version
  and install it as libheimsqlite.  If some other FreeBSD components will
  require it in the future we can rename it to libbsdsqlite and use for these
  components as well.

- This is not a latest Heimdal version, the new one was released while I was
  working on the update.  I will update it to 1.5.2 soon, as it fixes some
  important bugs and security issues.

1 files changed, 87 insertions, 37 deletions

diff --git a/crypto/heimdal/lib/asn1/timegm.c b/crypto/heimdal/lib/asn1/timegm.c
index 33b9684..d9f4adb 100644
--- a/crypto/heimdal/lib/asn1/timegm.c
+++ b/crypto/heimdal/lib/asn1/timegm.c
@@ -1,39 +1,39 @@
 /*
- * Copyright (c) 1997 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden). 
- * All rights reserved. 
+ * Copyright (c) 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without 
- * modification, are permitted provided that the following conditions 
- * are met: 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
  *
- * 1. Redistributions of source code must retain the above copyright 
- *    notice, this list of conditions and the following disclaimer. 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
  *
- * 2. Redistributions in binary form must reproduce the above copyright 
- *    notice, this list of conditions and the following disclaimer in the 
- *    documentation and/or other materials provided with the distribution. 
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
  *
- * 3. Neither the name of the Institute nor the names of its contributors 
- *    may be used to endorse or promote products derived from this software 
- *    without specific prior written permission. 
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
- * SUCH DAMAGE. 
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
  */
 
 #include "der_locl.h"
 
-RCSID("$Id: timegm.c 21366 2007-06-27 10:06:22Z lha $");
+#define ASN1_MAX_YEAR	2000
 
 static int
 is_leap(unsigned y)
@@ -42,7 +42,11 @@ is_leap(unsigned y)
     return (y % 4) == 0 && ((y % 100) != 0 || (y % 400) == 0);
 }
 
-/* 
+static const unsigned ndays[2][12] ={
+    {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
+    {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}};
+
+/*
  * This is a simplifed version of timegm(3) that doesn't accept out of
  * bound values that timegm(3) normally accepts but those are not
  * valid in asn1 encodings.
@@ -51,23 +55,26 @@ is_leap(unsigned y)
 time_t
 _der_timegm (struct tm *tm)
 {
-  static const unsigned ndays[2][12] ={
-    {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
-    {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}};
   time_t res = 0;
-  unsigned i;
+  int i;
 
-  if (tm->tm_year < 0) 
+  /*
+   * See comment in _der_gmtime
+   */
+  if (tm->tm_year > ASN1_MAX_YEAR)
+      return 0;
+
+  if (tm->tm_year < 0)
       return -1;
-  if (tm->tm_mon < 0 || tm->tm_mon > 11) 
+  if (tm->tm_mon < 0 || tm->tm_mon > 11)
       return -1;
-  if (tm->tm_mday < 1 || tm->tm_mday > ndays[is_leap(tm->tm_year)][tm->tm_mon])
+  if (tm->tm_mday < 1 || tm->tm_mday > (int)ndays[is_leap(tm->tm_year)][tm->tm_mon])
       return -1;
-  if (tm->tm_hour < 0 || tm->tm_hour > 23) 
+  if (tm->tm_hour < 0 || tm->tm_hour > 23)
       return -1;
-  if (tm->tm_min < 0 || tm->tm_min > 59) 
+  if (tm->tm_min < 0 || tm->tm_min > 59)
       return -1;
-  if (tm->tm_sec < 0 || tm->tm_sec > 59) 
+  if (tm->tm_sec < 0 || tm->tm_sec > 59)
       return -1;
 
   for (i = 70; i < tm->tm_year; ++i)
@@ -84,3 +91,46 @@ _der_timegm (struct tm *tm)
   res += tm->tm_sec;
   return res;
 }
+
+struct tm *
+_der_gmtime(time_t t, struct tm *tm)
+{
+    time_t secday = t % (3600 * 24);
+    time_t days = t / (3600 * 24);
+
+    memset(tm, 0, sizeof(*tm));
+
+    tm->tm_sec = secday % 60;
+    tm->tm_min = (secday % 3600) / 60;
+    tm->tm_hour = secday / 3600;
+
+    /*
+     * Refuse to calculate time ~ 2000 years into the future, this is
+     * not possible for systems where time_t is a int32_t, however,
+     * when time_t is a int64_t, that can happen, and this becomes a
+     * denial of sevice.
+     */
+    if (days > (ASN1_MAX_YEAR * 365))
+	return NULL;
+
+    tm->tm_year = 70;
+    while(1) {
+	unsigned dayinyear = (is_leap(tm->tm_year) ? 366 : 365);
+	if (days < dayinyear)
+	    break;
+	tm->tm_year += 1;
+	days -= dayinyear;
+    }
+    tm->tm_mon = 0;
+
+    while (1) {
+	unsigned daysinmonth = ndays[is_leap(tm->tm_year)][tm->tm_mon];
+	if (days < daysinmonth)
+	    break;
+	days -= daysinmonth;
+	tm->tm_mon++;
+    }
+    tm->tm_mday = days + 1;
+
+    return tm;
+}