Suppport for CRL distribution points extension. Also document some of

this stuff.

1 files changed, 290 insertions, 0 deletions

diff --git a/crypto/x509v3/v3_crld.c b/crypto/x509v3/v3_crld.c
new file mode 100644
index 0000000000..c0b63ee23c
--- /dev/null
+++ b/crypto/x509v3/v3_crld.c
@@ -0,0 +1,290 @@
+/* v3_crld.c */
+/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+ * project 1999.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
+ *
+ * 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. 
+ *
+ * 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 acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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 product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include "conf.h"
+#include "asn1.h"
+#include "asn1_mac.h"
+#include "x509v3.h"
+
+static STACK *i2v_crld(X509V3_EXT_METHOD *method, STACK_OF(DIST_POINT) *crld,
+							 STACK *extlist);
+static STACK_OF(DIST_POINT) *v2i_crld(X509V3_EXT_METHOD *method,
+						 X509V3_CTX *ctx, STACK *nval);
+
+X509V3_EXT_METHOD v3_crld = {
+NID_crl_distribution_points, X509V3_EXT_MULTILINE,
+(X509V3_EXT_NEW)CRL_DIST_POINTS_new,
+CRL_DIST_POINTS_free,
+(X509V3_EXT_D2I)d2i_CRL_DIST_POINTS,
+i2d_CRL_DIST_POINTS,
+NULL, NULL,
+(X509V3_EXT_I2V)i2v_crld,
+(X509V3_EXT_V2I)v2i_crld,
+NULL, NULL, NULL
+};
+
+/*
+ * ASN1err(ASN1_F_DIST_POINT_NEW,ERR_R_MALLOC_FAILURE);
+ * ASN1err(ASN1_F_D2I_DIST_POINT,ERR_R_MALLOC_FAILURE);
+ * ASN1err(ASN1_F_DIST_POINT_NAME_NEW,ERR_R_MALLOC_FAILURE);
+ * ASN1err(ASN1_F_D2I_DIST_POINT_NAME,ERR_R_MALLOC_FAILURE);
+ */
+
+static STACK *i2v_crld(X509V3_EXT_METHOD *method, STACK_OF(DIST_POINT) *crld,
+								 STACK *exts)
+{
+	DIST_POINT *point;
+	int i;
+	for(i = 0; i < sk_DIST_POINT_num(crld); i++) {
+		point = sk_DIST_POINT_value(crld, i);
+		if(point->distpoint->fullname) {
+			exts = i2v_GENERAL_NAMES(NULL,
+					 point->distpoint->fullname, exts);
+		}
+		if(point->reasons) 
+			X509V3_add_value("reasons","<UNSUPPORTED>", &exts);
+		if(point->CRLissuer)
+			X509V3_add_value("CRLissuer","<UNSUPPORTED>", &exts);
+		if(point->distpoint->relativename)
+		        X509V3_add_value("RelativeName","<UNSUPPORTED>", &exts);
+	}
+	return exts;
+}
+
+static STACK_OF(DIST_POINT) *v2i_crld(X509V3_EXT_METHOD *method,
+						 X509V3_CTX *ctx, STACK *nval)
+{
+	STACK_OF(DIST_POINT) *crld = NULL;
+	STACK_OF(GENERAL_NAME) *gens = NULL;
+	GENERAL_NAME *gen = NULL;
+	CONF_VALUE *cnf;
+	int i;
+	if(!(crld = sk_DIST_POINT_new(NULL))) goto merr;
+	for(i = 0; i < sk_num(nval); i++) {
+		DIST_POINT *point;
+		cnf = (CONF_VALUE *)sk_value(nval, i);
+		if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) goto err; 
+		if(!(gens = GENERAL_NAMES_new())) goto merr;
+		if(!sk_GENERAL_NAME_push(gens, gen)) goto merr;
+		gen = NULL;
+		if(!(point = DIST_POINT_new())) goto merr;
+		if(!sk_DIST_POINT_push(crld, point)) {
+			DIST_POINT_free(point);
+			goto merr;
+		}
+		if(!(point->distpoint = DIST_POINT_NAME_new())) goto merr;
+		point->distpoint->fullname = gens;
+		gens = NULL;
+	}
+	return crld;
+
+	merr:
+	X509V3err(X509V3_F_V2I_CRLD,ERR_R_MALLOC_FAILURE);
+	err:
+	GENERAL_NAME_free(gen);
+	GENERAL_NAMES_free(gens);
+	sk_DIST_POINT_pop_free(crld, DIST_POINT_free);
+	return NULL;
+}
+
+int i2d_CRL_DIST_POINTS(STACK_OF(DIST_POINT) *a, unsigned char **pp)
+{
+
+return i2d_ASN1_SET_OF_DIST_POINT(a, pp, i2d_DIST_POINT, V_ASN1_SEQUENCE,
+                                                 V_ASN1_UNIVERSAL, IS_SEQUENCE);}
+
+STACK_OF(DIST_POINT) *CRL_DIST_POINTS_new(void)
+{
+	return sk_DIST_POINT_new_null();
+}
+
+void CRL_DIST_POINTS_free(STACK_OF(DIST_POINT) *a)
+{
+	sk_DIST_POINT_pop_free(a, DIST_POINT_free);
+}
+
+STACK_OF(DIST_POINT) *d2i_CRL_DIST_POINTS(STACK_OF(DIST_POINT) **a,
+		unsigned char **pp,long length)
+{
+return d2i_ASN1_SET_OF_DIST_POINT(a, pp, length, d2i_DIST_POINT,
+                         DIST_POINT_free, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);
+
+}
+
+IMPLEMENT_STACK_OF(DIST_POINT)
+IMPLEMENT_ASN1_SET_OF(DIST_POINT)
+
+int i2d_DIST_POINT(DIST_POINT *a, unsigned char **pp)
+{
+	int v = 0;
+	M_ASN1_I2D_vars(a);
+	/* NB: underlying type is a CHOICE so need EXPLICIT tagging */
+	M_ASN1_I2D_len_EXP_opt (a->distpoint, i2d_DIST_POINT_NAME, 0, v);
+	M_ASN1_I2D_len_IMP_opt (a->reasons, i2d_ASN1_BIT_STRING);
+	M_ASN1_I2D_len_IMP_opt (a->CRLissuer, i2d_GENERAL_NAMES);
+
+	M_ASN1_I2D_seq_total();
+
+	M_ASN1_I2D_put_EXP_opt (a->distpoint, i2d_DIST_POINT_NAME, 0, v);
+	M_ASN1_I2D_put_IMP_opt (a->reasons, i2d_ASN1_BIT_STRING, 1);
+	M_ASN1_I2D_put_IMP_opt (a->CRLissuer, i2d_GENERAL_NAMES, 2);
+
+	M_ASN1_I2D_finish();
+}
+
+DIST_POINT *DIST_POINT_new(void)
+{
+	DIST_POINT *ret=NULL;
+	ASN1_CTX c;
+	M_ASN1_New_Malloc(ret, DIST_POINT);
+	ret->distpoint = NULL;
+	ret->reasons = NULL;
+	ret->CRLissuer = NULL;
+	return (ret);
+	M_ASN1_New_Error(ASN1_F_DIST_POINT_NEW);
+}
+
+DIST_POINT *d2i_DIST_POINT(DIST_POINT **a, unsigned char **pp, long length)
+{
+	M_ASN1_D2I_vars(a,DIST_POINT *,DIST_POINT_new);
+	M_ASN1_D2I_Init();
+	M_ASN1_D2I_start_sequence();
+	M_ASN1_D2I_get_EXP_opt (ret->distpoint, d2i_DIST_POINT_NAME, 0);
+	M_ASN1_D2I_get_IMP_opt (ret->reasons, d2i_ASN1_BIT_STRING, 1,
+							V_ASN1_BIT_STRING);
+	M_ASN1_D2I_get_IMP_opt (ret->CRLissuer, d2i_GENERAL_NAMES, 2,
+							V_ASN1_SEQUENCE);
+	M_ASN1_D2I_Finish(a, DIST_POINT_free, ASN1_F_D2I_DIST_POINT);
+}
+
+void DIST_POINT_free(DIST_POINT *a)
+{
+	if (a == NULL) return;
+	DIST_POINT_NAME_free(a->distpoint);
+	ASN1_BIT_STRING_free(a->reasons);
+	sk_GENERAL_NAME_pop_free(a->CRLissuer, GENERAL_NAME_free);
+	Free ((char *)a);
+}
+
+int i2d_DIST_POINT_NAME(DIST_POINT_NAME *a, unsigned char **pp)
+{
+	int v = 0;
+	M_ASN1_I2D_vars(a);
+
+	if(a->fullname) {
+		M_ASN1_I2D_len_IMP_opt (a->fullname, i2d_GENERAL_NAMES);
+	} else {
+		M_ASN1_I2D_len_EXP_opt (a->relativename, i2d_X509_NAME, 1, v);
+	}
+
+	/* Don't want a SEQUENCE so... */
+	if(pp == NULL) return ret;
+	p = *pp;
+
+	if(a->fullname) {
+		M_ASN1_I2D_put_IMP_opt (a->fullname, i2d_GENERAL_NAMES, 0);
+	} else {
+		M_ASN1_I2D_put_EXP_opt (a->relativename, i2d_X509_NAME, 1, v);
+	}
+	M_ASN1_I2D_finish();
+}
+
+DIST_POINT_NAME *DIST_POINT_NAME_new(void)
+{
+	DIST_POINT_NAME *ret=NULL;
+	ASN1_CTX c;
+	M_ASN1_New_Malloc(ret, DIST_POINT_NAME);
+	ret->fullname = NULL;
+	ret->relativename = NULL;
+	return (ret);
+	M_ASN1_New_Error(ASN1_F_DIST_POINT_NAME_NEW);
+}
+
+void DIST_POINT_NAME_free(DIST_POINT_NAME *a)
+{
+	if (a == NULL) return;
+	X509_NAME_free(a->relativename);
+	sk_GENERAL_NAME_pop_free(a->fullname, GENERAL_NAME_free);
+	Free ((char *)a);
+}
+
+DIST_POINT_NAME *d2i_DIST_POINT_NAME(DIST_POINT_NAME **a, unsigned char **pp,
+	     long length)
+{
+        unsigned char _tmp, tag;
+        M_ASN1_D2I_vars(a,DIST_POINT_NAME *,DIST_POINT_NAME_new);
+        M_ASN1_D2I_Init();
+        c.slen = length;
+
+        _tmp = M_ASN1_next;
+        tag = _tmp & ~V_ASN1_CONSTRUCTED;
+	
+	if(tag == (0|V_ASN1_CONTEXT_SPECIFIC)) {
+		M_ASN1_D2I_get_imp(ret->fullname, d2i_GENERAL_NAMES,
+							V_ASN1_SEQUENCE);
+	} else if (tag == (1|V_ASN1_CONTEXT_SPECIFIC)) {
+		M_ASN1_D2I_get_EXP_opt (ret->relativename, d2i_X509_NAME, 1);
+	} else {
+		c.error = ASN1_R_BAD_TAG;
+		goto err;
+	}
+
+	M_ASN1_D2I_Finish(a, DIST_POINT_NAME_free, ASN1_F_D2I_DIST_POINT_NAME);
+}