/* v3_ncons.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project.
*/
/* ====================================================================
#include <openssl/conf.h>
#include <openssl/x509v3.h>
-static void *v2i_NAME_CONSTRAINTS(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
-static int i2r_NAME_CONSTRAINTS(X509V3_EXT_METHOD *method,
+static void *v2i_NAME_CONSTRAINTS(const X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
+static int i2r_NAME_CONSTRAINTS(const X509V3_EXT_METHOD *method,
void *a, BIO *bp, int ind);
-static int do_i2r_name_constraints(X509V3_EXT_METHOD *method,
- STACK_OF(GENERAL_SUBTREE) *trees,
- BIO *bp, int ind, char *name);
+static int do_i2r_name_constraints(const X509V3_EXT_METHOD *method,
+ STACK_OF(GENERAL_SUBTREE) *trees,
+ BIO *bp, int ind, char *name);
static int print_nc_ipadd(BIO *bp, ASN1_OCTET_STRING *ip);
static int nc_match(GENERAL_NAME *gen, NAME_CONSTRAINTS *nc);
static int nc_dns(ASN1_IA5STRING *sub, ASN1_IA5STRING *dns);
static int nc_email(ASN1_IA5STRING *sub, ASN1_IA5STRING *eml);
static int nc_uri(ASN1_IA5STRING *uri, ASN1_IA5STRING *base);
+static int nc_ip(ASN1_OCTET_STRING *ip, ASN1_OCTET_STRING *base);
const X509V3_EXT_METHOD v3_name_constraints = {
NID_name_constraints, 0,
IMPLEMENT_ASN1_ALLOC_FUNCTIONS(GENERAL_SUBTREE)
IMPLEMENT_ASN1_ALLOC_FUNCTIONS(NAME_CONSTRAINTS)
-static void *v2i_NAME_CONSTRAINTS(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
+static void *v2i_NAME_CONSTRAINTS(const X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
{
int i;
CONF_VALUE tval, *val;
-static int i2r_NAME_CONSTRAINTS(X509V3_EXT_METHOD *method,
- void *a, BIO *bp, int ind)
+static int i2r_NAME_CONSTRAINTS(const X509V3_EXT_METHOD *method, void *a,
+ BIO *bp, int ind)
{
NAME_CONSTRAINTS *ncons = a;
do_i2r_name_constraints(method, ncons->permittedSubtrees,
return 1;
}
-static int do_i2r_name_constraints(X509V3_EXT_METHOD *method,
- STACK_OF(GENERAL_SUBTREE) *trees,
- BIO *bp, int ind, char *name)
+static int do_i2r_name_constraints(const X509V3_EXT_METHOD *method,
+ STACK_OF(GENERAL_SUBTREE) *trees,
+ BIO *bp, int ind, char *name)
{
GENERAL_SUBTREE *tree;
int i;
print_nc_ipadd(bp, tree->base->d.ip);
else
GENERAL_NAME_print(bp, tree->base);
- tree = sk_GENERAL_SUBTREE_value(trees, i);
BIO_puts(bp, "\n");
}
return 1;
return nc_uri(gen->d.uniformResourceIdentifier,
base->d.uniformResourceIdentifier);
+ case GEN_IPADD:
+ return nc_ip(gen->d.iPAddress, base->d.iPAddress);
+
default:
return X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE;
}
static int nc_dn(X509_NAME *nm, X509_NAME *base)
{
+ /* Ensure canonical encodings are up to date. */
+ if (nm->modified && i2d_X509_NAME(nm, NULL) < 0)
+ return X509_V_ERR_OUT_OF_MEM;
+ if (base->modified && i2d_X509_NAME(base, NULL) < 0)
+ return X509_V_ERR_OUT_OF_MEM;
if (base->canon_enclen > nm->canon_enclen)
return X509_V_ERR_PERMITTED_VIOLATION;
if (memcmp(base->canon_enc, nm->canon_enc, base->canon_enclen))
const char *baseptr = (char *)base->data;
const char *hostptr = (char *)uri->data;
const char *p = strchr(hostptr, ':');
- size_t hostlen;
+ int hostlen;
/* Check for foo:// and skip past it */
if (!p || (p[1] != '/') || (p[2] != '/'))
return X509_V_ERR_UNSUPPORTED_NAME_SYNTAX;
return X509_V_ERR_PERMITTED_VIOLATION;
}
- if ((base->length != hostlen) || strncasecmp(hostptr, baseptr, hostlen))
+ if ((base->length != (int)hostlen) || strncasecmp(hostptr, baseptr, hostlen))
return X509_V_ERR_PERMITTED_VIOLATION;
return X509_V_OK;
}
+
+static int nc_ip(ASN1_OCTET_STRING *ip, ASN1_OCTET_STRING *base)
+ {
+ int hostlen, baselen, i;
+ unsigned char *hostptr, *baseptr, *maskptr;
+ hostptr = ip->data;
+ hostlen = ip->length;
+ baseptr = base->data;
+ baselen = base->length;
+
+ /* Invalid if not IPv4 or IPv6 */
+ if (! ((hostlen == 4) || (hostlen==16)) )
+ return X509_V_ERR_UNSUPPORTED_NAME_SYNTAX;
+ if (! ((baselen == 8) || (baselen==32)) )
+ return X509_V_ERR_UNSUPPORTED_NAME_SYNTAX;
+
+ /* Do not match IPv4 with IPv6 */
+ if (hostlen*2 != baselen)
+ return X509_V_ERR_PERMITTED_VIOLATION;
+
+ maskptr = base->data + hostlen;
+
+ /* Considering possible not aligned base ipAddress */
+ /* Not checking for wrong mask definition: i.e.: 255.0.255.0*/
+ for (i = 0; i < hostlen; i++)
+ if ((hostptr[i] & maskptr[i]) != (baseptr[i] & maskptr[i]))
+ return X509_V_ERR_PERMITTED_VIOLATION;
+
+ return X509_V_OK;
+
+ }