Time to blow up the source tree :-) This is the beginning of support for

GeneralizedTime. At several points PKIX specifies that GeneralizedTime can be
used but OpenSSL doesn't currently support it. This patch adds several files
and a bunch of functions.

Of interest is the ASN1_TIME structure and its related functions. At several
points certificates, CRLs et al specify that a time can be expressed as a
choice of UTCTime and GeneralizedTime. Currently OpenSSL interprets this
(wrongly) as UTCTime because GeneralizedTime isn't supported. The ASN1_TIME
stuff provides this functionality.

Still todo is to trace which cert and CRL points need an ASN1_TIME and modify
the utilities appropriately and of course fix all the bugs.

Note new OpenSSL copyright in the new file a_time.c. I didn't put it in
a_gentm.c because it is a minimally modified form a_utctm.c .

Since this adds new files and error codes you will need to do a 'make errors'
at the top level to add the new codes.

1 files changed, 217 insertions, 0 deletions

diff --git a/crypto/asn1/a_gentm.c b/crypto/asn1/a_gentm.c
new file mode 100644
index 0000000000..3d37e9de71
--- /dev/null
+++ b/crypto/asn1/a_gentm.c
@@ -0,0 +1,217 @@
+/* crypto/asn1/a_gentm.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * 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 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+/* GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME */
+
+#include <stdio.h>
+#include <time.h>
+#include "cryptlib.h"
+#include "asn1.h"
+
+/* ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_NEW,ASN1_R_GENERALIZEDTIME_TOO_LONG);
+ * ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_EXPECTING_A_GENERALIZEDTIME);
+ */
+
+int i2d_ASN1_GENERALIZEDTIME(a,pp)
+ASN1_GENERALIZEDTIME *a;
+unsigned char **pp;
+	{
+	return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
+		V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL));
+	}
+
+
+ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(a, pp, length)
+ASN1_GENERALIZEDTIME **a;
+unsigned char **pp;
+long length;
+	{
+	ASN1_GENERALIZEDTIME *ret=NULL;
+
+	ret=(ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length,
+		V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL);
+	if (ret == NULL)
+		{
+		ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ERR_R_NESTED_ASN1_ERROR);
+		return(NULL);
+		}
+	if (!ASN1_GENERALIZEDTIME_check(ret))
+		{
+		ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_INVALID_TIME_FORMAT);
+		goto err;
+		}
+
+	return(ret);
+err:
+	if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+		ASN1_GENERALIZEDTIME_free(ret);
+	return(NULL);
+	}
+
+int ASN1_GENERALIZEDTIME_check(d)
+ASN1_GENERALIZEDTIME *d;
+	{
+	static int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0};
+	static int max[9]={99, 99,12,31,23,59,59,12,59};
+	char *a;
+	int n,i,l,o;
+
+	if (d->type != V_ASN1_GENERALIZEDTIME) return(0);
+	l=d->length;
+	a=(char *)d->data;
+	o=0;
+	/* GENERALIZEDTIME is similar to UTCTIME except the year is
+         * represented as YYYY. This stuff treats everything as a two digit
+         * field so make first two fields 00 to 99
+         */
+	if (l < 13) goto err;
+	for (i=0; i<7; i++)
+		{
+		if ((i == 6) && ((a[o] == 'Z') ||
+			(a[o] == '+') || (a[o] == '-')))
+			{ i++; break; }
+		if ((a[o] < '0') || (a[o] > '9')) goto err;
+		n= a[o]-'0';
+		if (++o > l) goto err;
+
+		if ((a[o] < '0') || (a[o] > '9')) goto err;
+		n=(n*10)+ a[o]-'0';
+		if (++o > l) goto err;
+
+		if ((n < min[i]) || (n > max[i])) goto err;
+		}
+	if (a[o] == 'Z')
+		o++;
+	else if ((a[o] == '+') || (a[o] == '-'))
+		{
+		o++;
+		if (o+4 > l) goto err;
+		for (i=7; i<9; i++)
+			{
+			if ((a[o] < '0') || (a[o] > '9')) goto err;
+			n= a[o]-'0';
+			o++;
+			if ((a[o] < '0') || (a[o] > '9')) goto err;
+			n=(n*10)+ a[o]-'0';
+			if ((n < min[i]) || (n > max[i])) goto err;
+			o++;
+			}
+		}
+	return(o == l);
+err:
+	return(0);
+	}
+
+int ASN1_GENERALIZEDTIME_set_string(s,str)
+ASN1_GENERALIZEDTIME *s;
+char *str;
+	{
+	ASN1_GENERALIZEDTIME t;
+
+	t.type=V_ASN1_GENERALIZEDTIME;
+	t.length=strlen(str);
+	t.data=(unsigned char *)str;
+	if (ASN1_GENERALIZEDTIME_check(&t))
+		{
+		if (s != NULL)
+			{
+			ASN1_STRING_set((ASN1_STRING *)s,
+				(unsigned char *)str,t.length);
+			}
+		return(1);
+		}
+	else
+		return(0);
+	}
+
+ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(s, t)
+ASN1_GENERALIZEDTIME *s;
+time_t t;
+	{
+	char *p;
+	struct tm *ts;
+#if defined(THREADS) && !defined(WIN32)
+	struct tm data;
+#endif
+
+	if (s == NULL)
+		s=ASN1_GENERALIZEDTIME_new();
+	if (s == NULL)
+		return(NULL);
+
+#if defined(THREADS) && !defined(WIN32)
+	ts=(struct tm *)gmtime_r(&t,&data);
+#else
+	ts=(struct tm *)gmtime(&t);
+#endif
+	p=(char *)s->data;
+	if ((p == NULL) || (s->length < 16))
+		{
+		p=Malloc(20);
+		if (p == NULL) return(NULL);
+		if (s->data != NULL)
+			Free(s->data);
+		s->data=(unsigned char *)p;
+		}
+
+	sprintf(p,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year,
+		ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
+	s->length=strlen(p);
+	s->type=V_ASN1_GENERALIZEDTIME;
+	return(s);
+	}