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openssl/crypto/x509v3/v3_crld.c

Index: openssl/crypto/x509v3/v3_crld.c
===================================================================
--- openssl/crypto/x509v3/v3_crld.c	(revision 105093)
+++ openssl/crypto/x509v3/v3_crld.c	(working copy)
@@ -3,7 +3,7 @@
  * project 1999.
  */
 /* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1999-2008 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
@@ -63,45 +63,254 @@
 #include <openssl/asn1t.h>
 #include <openssl/x509v3.h>
 
-static STACK_OF(CONF_VALUE) *i2v_crld(X509V3_EXT_METHOD *method,
-		STACK_OF(DIST_POINT) *crld, STACK_OF(CONF_VALUE) *extlist);
-static STACK_OF(DIST_POINT) *v2i_crld(X509V3_EXT_METHOD *method,
-				X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
+static void *v2i_crld(const X509V3_EXT_METHOD *method,
+		      X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
+static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
+		     int indent);
 
-const X509V3_EXT_METHOD v3_crld = {
-NID_crl_distribution_points, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(CRL_DIST_POINTS),
-0,0,0,0,
-0,0,
-(X509V3_EXT_I2V)i2v_crld,
-(X509V3_EXT_V2I)v2i_crld,
-0,0,
-NULL
+const X509V3_EXT_METHOD v3_crld =
+	{
+	NID_crl_distribution_points, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
+	0,0,0,0,
+	0,0,
+	0,
+	v2i_crld,
+	i2r_crldp,0,
+	NULL
+	};
+
+const X509V3_EXT_METHOD v3_freshest_crl =
+	{
+	NID_freshest_crl, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
+	0,0,0,0,
+	0,0,
+	0,
+	v2i_crld,
+	i2r_crldp,0,
+	NULL
+	};
+
+static STACK_OF(GENERAL_NAME) *gnames_from_sectname(X509V3_CTX *ctx, char *sect)
+	{
+	STACK_OF(CONF_VALUE) *gnsect;
+	STACK_OF(GENERAL_NAME) *gens;
+	if (*sect == '@')
+		gnsect = X509V3_get_section(ctx, sect + 1);
+	else
+		gnsect = X509V3_parse_list(sect);
+	if (!gnsect)
+		{
+		X509V3err(X509V3_F_GNAMES_FROM_SECTNAME,
+						X509V3_R_SECTION_NOT_FOUND);
+		return NULL;
+		}
+	gens = v2i_GENERAL_NAMES(NULL, ctx, gnsect);
+	if (*sect == '@')
+		X509V3_section_free(ctx, gnsect);
+	else
+		sk_CONF_VALUE_pop_free(gnsect, X509V3_conf_free);
+	return gens;
+	}
+
+static int set_dist_point_name(DIST_POINT_NAME **pdp, X509V3_CTX *ctx,
+							CONF_VALUE *cnf)
+	{
+	STACK_OF(GENERAL_NAME) *fnm = NULL;
+	STACK_OF(X509_NAME_ENTRY) *rnm = NULL;
+	if (!strncmp(cnf->name, "fullname", 9))
+		{
+		fnm = gnames_from_sectname(ctx, cnf->value);
+		if (!fnm)
+			goto err;
+		}
+	else if (!strcmp(cnf->name, "relativename"))
+		{
+		int ret;
+		STACK_OF(CONF_VALUE) *dnsect;
+		X509_NAME *nm;
+		nm = X509_NAME_new();
+		if (!nm)
+			return -1;
+		dnsect = X509V3_get_section(ctx, cnf->value);
+		if (!dnsect)
+			{
+			X509V3err(X509V3_F_SET_DIST_POINT_NAME,
+						X509V3_R_SECTION_NOT_FOUND);
+			return -1;
+			}
+		ret = X509V3_NAME_from_section(nm, dnsect, MBSTRING_ASC);
+		X509V3_section_free(ctx, dnsect);
+		rnm = nm->entries;
+		nm->entries = NULL;
+		X509_NAME_free(nm);
+		if (!ret || sk_X509_NAME_ENTRY_num(rnm) <= 0)
+			goto err;
+		/* Since its a name fragment can't have more than one
+		 * RDNSequence
+		 */
+		if (sk_X509_NAME_ENTRY_value(rnm,
+				sk_X509_NAME_ENTRY_num(rnm) - 1)->set)
+			{
+			X509V3err(X509V3_F_SET_DIST_POINT_NAME,
+						X509V3_R_INVALID_MULTIPLE_RDNS);
+			goto err;
+			}
+		}
+	else
+		return 0;
+
+	if (*pdp)
+		{
+		X509V3err(X509V3_F_SET_DIST_POINT_NAME,
+						X509V3_R_DISTPOINT_ALREADY_SET);
+		goto err;
+		}
+
+	*pdp = DIST_POINT_NAME_new();
+	if (!*pdp)
+		goto err;
+	if (fnm)
+		{
+		(*pdp)->type = 0;
+		(*pdp)->name.fullname = fnm;
+		}
+	else
+		{
+		(*pdp)->type = 1;
+		(*pdp)->name.relativename = rnm;
+		}
+
+	return 1;
+		
+	err:
+	if (fnm)
+		sk_GENERAL_NAME_pop_free(fnm, GENERAL_NAME_free);
+	if (rnm)
+		sk_X509_NAME_ENTRY_pop_free(rnm, X509_NAME_ENTRY_free);
+	return -1;
+	}
+
+static const BIT_STRING_BITNAME reason_flags[] = {
+{0, "Unused", "unused"},
+{1, "Key Compromise", "keyCompromise"},
+{2, "CA Compromise", "CACompromise"},
+{3, "Affiliation Changed", "affiliationChanged"},
+{4, "Superseded", "superseded"},
+{5, "Cessation Of Operation", "cessationOfOperation"},
+{6, "Certificate Hold", "certificateHold"},
+{7, "Privilege Withdrawn", "privilegeWithdrawn"},
+{8, "AA Compromise", "AACompromise"},
+{-1, NULL, NULL}
 };
 
-static STACK_OF(CONF_VALUE) *i2v_crld(X509V3_EXT_METHOD *method,
-			STACK_OF(DIST_POINT) *crld, STACK_OF(CONF_VALUE) *exts)
-{
-	DIST_POINT *point;
+static int set_reasons(ASN1_BIT_STRING **preas, char *value)
+	{
+	STACK_OF(CONF_VALUE) *rsk = NULL;
+	const BIT_STRING_BITNAME *pbn;
+	const char *bnam;
+	int i, ret = 0;
+	rsk = X509V3_parse_list(value);
+	if (!rsk)
+		return 0;
+	if (*preas)
+		return 0;
+	for (i = 0; i < sk_CONF_VALUE_num(rsk); i++)
+		{
+		bnam = sk_CONF_VALUE_value(rsk, i)->name;
+		if (!*preas)
+			{
+			*preas = ASN1_BIT_STRING_new();
+			if (!*preas)
+				goto err;
+			}
+		for (pbn = reason_flags; pbn->lname; pbn++)
+			{
+			if (!strcmp(pbn->sname, bnam))
+				{
+				if (!ASN1_BIT_STRING_set_bit(*preas,
+							pbn->bitnum, 1))
+					goto err;
+				break;
+				}
+			}
+		if (!pbn->lname)
+			goto err;
+		}
+	ret = 1;
+
+	err:
+	sk_CONF_VALUE_pop_free(rsk, X509V3_conf_free);
+	return ret;
+	}
+
+static int print_reasons(BIO *out, const char *rname,
+			ASN1_BIT_STRING *rflags, int indent)
+	{
+	int first = 1;
+	const BIT_STRING_BITNAME *pbn;
+	BIO_printf(out, "%*s%s:\n%*s", indent, "", rname, indent + 2, "");
+	for (pbn = reason_flags; pbn->lname; pbn++)
+		{
+		if (ASN1_BIT_STRING_get_bit(rflags, pbn->bitnum))
+			{
+			if (first)
+				first = 0;
+			else
+				BIO_puts(out, ", ");
+			BIO_puts(out, pbn->lname);
+			}
+		}
+	if (first)
+		BIO_puts(out, "<EMPTY>\n");
+	else
+		BIO_puts(out, "\n");
+	return 1;
+	}
+
+static DIST_POINT *crldp_from_section(X509V3_CTX *ctx,
+						STACK_OF(CONF_VALUE) *nval)
+	{
 	int i;
-	for(i = 0; i < sk_DIST_POINT_num(crld); i++) {
-		point = sk_DIST_POINT_value(crld, i);
-		if(point->distpoint) {
-			if(point->distpoint->type == 0)
-				exts = i2v_GENERAL_NAMES(NULL,
-					 point->distpoint->name.fullname, exts);
-		        else X509V3_add_value("RelativeName","<UNSUPPORTED>", &exts);
+	CONF_VALUE *cnf;
+	DIST_POINT *point = NULL;
+	point = DIST_POINT_new();
+	if (!point)
+		goto err;
+	for(i = 0; i < sk_CONF_VALUE_num(nval); i++)
+		{
+		int ret;
+		cnf = sk_CONF_VALUE_value(nval, i);
+		ret = set_dist_point_name(&point->distpoint, ctx, cnf);
+		if (ret > 0)
+			continue;
+		if (ret < 0)
+			goto err;
+		if (!strcmp(cnf->name, "reasons"))
+			{
+			if (!set_reasons(&point->reasons, cnf->value))
+				goto err;
+			}
+		else if (!strcmp(cnf->name, "CRLissuer"))
+			{
+			point->CRLissuer =
+				gnames_from_sectname(ctx, cnf->value);
+			if (!point->CRLissuer)
+				goto err;
+			}
 		}
-		if(point->reasons) 
-			X509V3_add_value("reasons","<UNSUPPORTED>", &exts);
-		if(point->CRLissuer)
-			X509V3_add_value("CRLissuer","<UNSUPPORTED>", &exts);
+
+	return point;
+			
+
+	err:
+	if (point)
+		DIST_POINT_free(point);
+	return NULL;
 	}
-	return exts;
-}
 
-static STACK_OF(DIST_POINT) *v2i_crld(X509V3_EXT_METHOD *method,
-				X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
-{
+static void *v2i_crld(const X509V3_EXT_METHOD *method,
+		      X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
+	{
 	STACK_OF(DIST_POINT) *crld = NULL;
 	GENERAL_NAMES *gens = NULL;
 	GENERAL_NAME *gen = NULL;
@@ -111,19 +320,44 @@
 	for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
 		DIST_POINT *point;
 		cnf = sk_CONF_VALUE_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->name.fullname = gens;
-		point->distpoint->type = 0;
-		gens = NULL;
+		if (!cnf->value)
+			{
+			STACK_OF(CONF_VALUE) *dpsect;
+			dpsect = X509V3_get_section(ctx, cnf->name);
+			if (!dpsect)
+				goto err;
+			point = crldp_from_section(ctx, dpsect);
+			X509V3_section_free(ctx, dpsect);
+			if (!point)
+				goto err;
+			if(!sk_DIST_POINT_push(crld, point))
+				{
+				DIST_POINT_free(point);
+				goto merr;
+				}
+			}
+		else
+			{
+			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->name.fullname = gens;
+			point->distpoint->type = 0;
+			gens = NULL;
+			}
 	}
 	return crld;
 
@@ -139,12 +373,32 @@
 IMPLEMENT_STACK_OF(DIST_POINT)
 IMPLEMENT_ASN1_SET_OF(DIST_POINT)
 
+static int dpn_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+								void *exarg)
+	{
+	DIST_POINT_NAME *dpn = (DIST_POINT_NAME *)*pval;
 
-ASN1_CHOICE(DIST_POINT_NAME) = {
+	switch(operation)
+		{
+		case ASN1_OP_NEW_POST:
+		dpn->dpname = NULL;
+		break;
+
+		case ASN1_OP_FREE_POST:
+		if (dpn->dpname)
+			X509_NAME_free(dpn->dpname);
+		break;
+		}
+	return 1;
+	}
+
+
+ASN1_CHOICE_cb(DIST_POINT_NAME, dpn_cb) = {
 	ASN1_IMP_SEQUENCE_OF(DIST_POINT_NAME, name.fullname, GENERAL_NAME, 0),
 	ASN1_IMP_SET_OF(DIST_POINT_NAME, name.relativename, X509_NAME_ENTRY, 1)
-} ASN1_CHOICE_END(DIST_POINT_NAME)
+} ASN1_CHOICE_END_cb(DIST_POINT_NAME, DIST_POINT_NAME, type)
 
+
 IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT_NAME)
 
 ASN1_SEQUENCE(DIST_POINT) = {
@@ -160,3 +414,203 @@
 ASN1_ITEM_TEMPLATE_END(CRL_DIST_POINTS)
 
 IMPLEMENT_ASN1_FUNCTIONS(CRL_DIST_POINTS)
+
+ASN1_SEQUENCE(ISSUING_DIST_POINT) = {
+	ASN1_EXP_OPT(ISSUING_DIST_POINT, distpoint, DIST_POINT_NAME, 0),
+	ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyuser, ASN1_FBOOLEAN, 1),
+	ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyCA, ASN1_FBOOLEAN, 2),
+	ASN1_IMP_OPT(ISSUING_DIST_POINT, onlysomereasons, ASN1_BIT_STRING, 3),
+	ASN1_IMP_OPT(ISSUING_DIST_POINT, indirectCRL, ASN1_FBOOLEAN, 4),
+	ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyattr, ASN1_FBOOLEAN, 5)
+} ASN1_SEQUENCE_END(ISSUING_DIST_POINT)
+
+IMPLEMENT_ASN1_FUNCTIONS(ISSUING_DIST_POINT)
+
+static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out,
+		   int indent);
+static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
+		     STACK_OF(CONF_VALUE) *nval);
+
+const X509V3_EXT_METHOD v3_idp =
+	{
+	NID_issuing_distribution_point, X509V3_EXT_MULTILINE,
+	ASN1_ITEM_ref(ISSUING_DIST_POINT),
+	0,0,0,0,
+	0,0,
+	0,
+	v2i_idp,
+	i2r_idp,0,
+	NULL
+	};
+
+static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
+		     STACK_OF(CONF_VALUE) *nval)
+	{
+	ISSUING_DIST_POINT *idp = NULL;
+	CONF_VALUE *cnf;
+	char *name, *val;
+	int i, ret;
+	idp = ISSUING_DIST_POINT_new();
+	if (!idp)
+		goto merr;
+	for(i = 0; i < sk_CONF_VALUE_num(nval); i++)
+		{
+		cnf = sk_CONF_VALUE_value(nval, i);
+		name = cnf->name;
+		val = cnf->value;
+		ret = set_dist_point_name(&idp->distpoint, ctx, cnf);
+		if (ret > 0)
+			continue;
+		if (ret < 0)
+			goto err;
+		if (!strcmp(name, "onlyuser"))
+			{
+			if (!X509V3_get_value_bool(cnf, &idp->onlyuser))
+				goto err;
+			}
+		else if (!strcmp(name, "onlyCA"))
+			{
+			if (!X509V3_get_value_bool(cnf, &idp->onlyCA))
+				goto err;
+			}
+		else if (!strcmp(name, "onlyAA"))
+			{
+			if (!X509V3_get_value_bool(cnf, &idp->onlyattr))
+				goto err;
+			}
+		else if (!strcmp(name, "indirectCRL"))
+			{
+			if (!X509V3_get_value_bool(cnf, &idp->indirectCRL))
+				goto err;
+			}
+		else if (!strcmp(name, "onlysomereasons"))
+			{
+			if (!set_reasons(&idp->onlysomereasons, val))
+				goto err;
+			}
+		else
+			{
+                        X509V3err(X509V3_F_V2I_IDP, X509V3_R_INVALID_NAME);
+                        X509V3_conf_err(cnf);
+                        goto err;
+			}
+		}
+	return idp;
+
+	merr:
+	X509V3err(X509V3_F_V2I_IDP,ERR_R_MALLOC_FAILURE);
+	err:
+	ISSUING_DIST_POINT_free(idp);
+	return NULL;
+	}
+
+static int print_gens(BIO *out, STACK_OF(GENERAL_NAME) *gens, int indent)
+	{
+	int i;
+	for (i = 0; i < sk_GENERAL_NAME_num(gens); i++)
+		{
+		BIO_printf(out, "%*s", indent + 2, "");
+		GENERAL_NAME_print(out, sk_GENERAL_NAME_value(gens, i));
+		BIO_puts(out, "\n");
+		}
+	return 1;
+	}
+
+static int print_distpoint(BIO *out, DIST_POINT_NAME *dpn, int indent)
+	{
+	if (dpn->type == 0)
+		{
+		BIO_printf(out, "%*sFull Name:\n", indent, "");
+		print_gens(out, dpn->name.fullname, indent);
+		}
+	else
+		{
+		X509_NAME ntmp;
+		ntmp.entries = dpn->name.relativename;
+		BIO_printf(out, "%*sRelative Name:\n%*s",
+						indent, "", indent + 2, "");
+		X509_NAME_print_ex(out, &ntmp, 0, XN_FLAG_ONELINE);
+		BIO_puts(out, "\n");
+		}
+	return 1;
+	}
+
+static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out,
+		   int indent)
+	{
+	ISSUING_DIST_POINT *idp = pidp;
+	if (idp->distpoint)
+		print_distpoint(out, idp->distpoint, indent);
+	if (idp->onlyuser > 0)
+		BIO_printf(out, "%*sOnly User Certificates\n", indent, "");
+	if (idp->onlyCA > 0)
+		BIO_printf(out, "%*sOnly CA Certificates\n", indent, "");
+	if (idp->indirectCRL > 0)
+		BIO_printf(out, "%*sIndirect CRL\n", indent, "");
+	if (idp->onlysomereasons)
+		print_reasons(out, "Only Some Reasons", 
+				idp->onlysomereasons, indent);
+	if (idp->onlyattr > 0)
+		BIO_printf(out, "%*sOnly Attribute Certificates\n", indent, "");
+	if (!idp->distpoint && (idp->onlyuser <= 0) && (idp->onlyCA <= 0)
+		&& (idp->indirectCRL <= 0) && !idp->onlysomereasons
+		&& (idp->onlyattr <= 0))
+		BIO_printf(out, "%*s<EMPTY>\n", indent, "");
+		
+	return 1;
+	}
+
+static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
+		     int indent)
+	{
+	STACK_OF(DIST_POINT) *crld = pcrldp;
+	DIST_POINT *point;
+	int i;
+	for(i = 0; i < sk_DIST_POINT_num(crld); i++)
+		{
+		BIO_puts(out, "\n");
+		point = sk_DIST_POINT_value(crld, i);
+		if(point->distpoint)
+			print_distpoint(out, point->distpoint, indent);
+		if(point->reasons) 
+			print_reasons(out, "Reasons", point->reasons,
+								indent);
+		if(point->CRLissuer)
+			{
+			BIO_printf(out, "%*sCRL Issuer:\n", indent, "");
+			print_gens(out, point->CRLissuer, indent);
+			}
+		}
+	return 1;
+	}
+
+int DIST_POINT_set_dpname(DIST_POINT_NAME *dpn, X509_NAME *iname)
+	{
+	int i;
+	STACK_OF(X509_NAME_ENTRY) *frag;
+	X509_NAME_ENTRY *ne;
+	if (!dpn || (dpn->type != 1))
+		return 1;
+	frag = dpn->name.relativename;
+	dpn->dpname = X509_NAME_dup(iname);
+	if (!dpn->dpname)
+		return 0;
+	for (i = 0; i < sk_X509_NAME_ENTRY_num(frag); i++)
+		{
+		ne = sk_X509_NAME_ENTRY_value(frag, i);
+		if (!X509_NAME_add_entry(dpn->dpname, ne, -1, i ? 0 : 1))
+			{
+			X509_NAME_free(dpn->dpname);
+			dpn->dpname = NULL;
+			return 0;
+			}
+		}
+	/* generate cached encoding of name */
+	if (i2d_X509_NAME(dpn->dpname, NULL) < 0)
+		{
+		X509_NAME_free(dpn->dpname);
+		dpn->dpname = NULL;
+		return 0;
+		}
+	return 1;
+	}