#include <stdio.h>
#include "cryptlib.h"
+#include "asn1_locl.h"
#include <openssl/asn1t.h>
#include <openssl/x509.h>
+#include <openssl/x509v3.h>
static int X509_REVOKED_cmp(const X509_REVOKED * const *a,
const X509_REVOKED * const *b);
-static int X509_REVOKED_seq_cmp(const X509_REVOKED * const *a,
- const X509_REVOKED * const *b);
+static void setup_idp(X509_CRL *crl, ISSUING_DIST_POINT *idp);
ASN1_SEQUENCE(X509_REVOKED) = {
ASN1_SIMPLE(X509_REVOKED,serialNumber, ASN1_INTEGER),
ASN1_SIMPLE(X509_REVOKED,revocationDate, ASN1_TIME),
ASN1_SEQUENCE_OF_OPT(X509_REVOKED,extensions, X509_EXTENSION)
-} ASN1_SEQUENCE_END(X509_REVOKED);
+} ASN1_SEQUENCE_END(X509_REVOKED)
-/* The X509_CRL_INFO structure needs a bit of customisation. This is actually
- * mirroring the old behaviour: its purpose is to allow the use of
- * sk_X509_REVOKED_find to lookup revoked certificates. Unfortunately
- * this will zap the original order and the signature so we keep a copy
- * of the original positions and reorder appropriately before encoding.
- *
- * Might want to see if there's a better way of doing this later...
+static int def_crl_verify(X509_CRL *crl, EVP_PKEY *r);
+static int def_crl_lookup(X509_CRL *crl,
+ X509_REVOKED **ret, ASN1_INTEGER *serial);
+
+static X509_CRL_METHOD int_crl_meth =
+ {
+ 0,
+ 0,0,
+ def_crl_lookup,
+ def_crl_verify
+ };
+
+static const X509_CRL_METHOD *default_crl_method = &int_crl_meth;
+
+/* The X509_CRL_INFO structure needs a bit of customisation.
+ * Since we cache the original encoding the signature wont be affected by
+ * reordering of the revoked field.
*/
-static int crl_inf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
+static int crl_inf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ void *exarg)
{
X509_CRL_INFO *a = (X509_CRL_INFO *)*pval;
- int i;
- int (*old_cmp)(const X509_REVOKED * const *,
- const X509_REVOKED * const *);
if(!a || !a->revoked) return 1;
switch(operation) {
-
- /* Save original order */
+ /* Just set cmp function here. We don't sort because that
+ * would affect the output of X509_CRL_print().
+ */
case ASN1_OP_D2I_POST:
- for (i=0; i<sk_X509_REVOKED_num(a->revoked); i++)
- sk_X509_REVOKED_value(a->revoked,i)->sequence=i;
sk_X509_REVOKED_set_cmp_func(a->revoked,X509_REVOKED_cmp);
break;
-
- /* Restore original order */
- case ASN1_OP_I2D_PRE:
- old_cmp=sk_X509_REVOKED_set_cmp_func(a->revoked,X509_REVOKED_seq_cmp);
- sk_X509_REVOKED_sort(a->revoked);
- sk_X509_REVOKED_set_cmp_func(a->revoked,old_cmp);
- break;
}
return 1;
}
-ASN1_SEQUENCE_cb(X509_CRL_INFO, crl_inf_cb) = {
+ASN1_SEQUENCE_enc(X509_CRL_INFO, enc, crl_inf_cb) = {
ASN1_OPT(X509_CRL_INFO, version, ASN1_INTEGER),
ASN1_SIMPLE(X509_CRL_INFO, sig_alg, X509_ALGOR),
ASN1_SIMPLE(X509_CRL_INFO, issuer, X509_NAME),
ASN1_OPT(X509_CRL_INFO, nextUpdate, ASN1_TIME),
ASN1_SEQUENCE_OF_OPT(X509_CRL_INFO, revoked, X509_REVOKED),
ASN1_EXP_SEQUENCE_OF_OPT(X509_CRL_INFO, extensions, X509_EXTENSION, 0)
-} ASN1_SEQUENCE_END_cb(X509_CRL_INFO, X509_CRL_INFO);
+} ASN1_SEQUENCE_END_enc(X509_CRL_INFO, X509_CRL_INFO)
+
+/* The X509_CRL structure needs a bit of customisation. Cache some extensions
+ * and hash of the whole CRL.
+ */
+static int crl_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ void *exarg)
+ {
+ X509_CRL *crl = (X509_CRL *)*pval;
+ STACK_OF(X509_EXTENSION) *exts;
+ X509_EXTENSION *ext;
+ int idx;
+
+ switch(operation)
+ {
+ case ASN1_OP_NEW_POST:
+ crl->idp = NULL;
+ crl->akid = NULL;
+ crl->flags = 0;
+ crl->idp_flags = 0;
+ crl->meth = default_crl_method;
+ crl->meth_data = NULL;
+ break;
+
+ case ASN1_OP_D2I_POST:
+#ifndef OPENSSL_NO_SHA
+ X509_CRL_digest(crl, EVP_sha1(), crl->sha1_hash, NULL);
+#endif
+ crl->idp = X509_CRL_get_ext_d2i(crl,
+ NID_issuing_distribution_point, NULL, NULL);
+ if (crl->idp)
+ setup_idp(crl, crl->idp);
+
+ crl->akid = X509_CRL_get_ext_d2i(crl,
+ NID_authority_key_identifier, NULL, NULL);
+
+ /* See if we have any unhandled critical CRL extensions and
+ * indicate this in a flag. We only currently handle IDP so
+ * anything else critical sets the flag.
+ *
+ * This code accesses the X509_CRL structure directly:
+ * applications shouldn't do this.
+ */
+
+ exts = crl->crl->extensions;
+
+ for (idx = 0; idx < sk_X509_EXTENSION_num(exts); idx++)
+ {
+ ext = sk_X509_EXTENSION_value(exts, idx);
+ if (ext->critical > 0)
+ {
+ /* We handle IDP now so permit it */
+ if (OBJ_obj2nid(ext->object) ==
+ NID_issuing_distribution_point)
+ continue;
+ crl->flags |= EXFLAG_CRITICAL;
+ break;
+ }
+ }
+ if (crl->meth->crl_init)
+ {
+ if (crl->meth->crl_init(crl) == 0)
+ return 0;
+ }
+ break;
+
+ case ASN1_OP_FREE_POST:
+ if (crl->meth->crl_free)
+ {
+ if (!crl->meth->crl_free(crl))
+ return 0;
+ }
+ if (crl->akid)
+ AUTHORITY_KEYID_free(crl->akid);
+ if (crl->idp)
+ ISSUING_DIST_POINT_free(crl->idp);
+ break;
+ }
+ return 1;
+ }
+
+/* Convert IDP into a more convenient form */
+
+static void setup_idp(X509_CRL *crl, ISSUING_DIST_POINT *idp)
+ {
+ int idp_only = 0;
+ /* Set various flags according to IDP */
+ crl->idp_flags |= IDP_PRESENT;
+ if (idp->onlyuser > 0)
+ {
+ idp_only++;
+ crl->idp_flags |= IDP_ONLYUSER;
+ }
+ if (idp->onlyCA > 0)
+ {
+ idp_only++;
+ crl->idp_flags |= IDP_ONLYCA;
+ }
+ if (idp->onlyattr > 0)
+ {
+ idp_only++;
+ crl->idp_flags |= IDP_ONLYATTR;
+ }
+
+ if (idp_only > 1)
+ crl->idp_flags |= IDP_INVALID;
+
+ if (idp->indirectCRL > 0)
+ crl->idp_flags |= IDP_INDIRECT;
+
+ if (idp->onlysomereasons)
+ {
+ crl->idp_flags |= IDP_REASONS;
+ if (idp->onlysomereasons->length > 0)
+ crl->idp_reasons = idp->onlysomereasons->data[0];
+ if (idp->onlysomereasons->length > 1)
+ crl->idp_reasons |=
+ (idp->onlysomereasons->data[1] << 8);
+ }
+ }
-ASN1_SEQUENCE_ref(X509_CRL, 0, CRYPTO_LOCK_X509_CRL) = {
+ASN1_SEQUENCE_ref(X509_CRL, crl_cb, CRYPTO_LOCK_X509_CRL) = {
ASN1_SIMPLE(X509_CRL, crl, X509_CRL_INFO),
ASN1_SIMPLE(X509_CRL, sig_alg, X509_ALGOR),
ASN1_SIMPLE(X509_CRL, signature, ASN1_BIT_STRING)
-} ASN1_SEQUENCE_END_ref(X509_CRL, X509_CRL);
+} ASN1_SEQUENCE_END_ref(X509_CRL, X509_CRL)
IMPLEMENT_ASN1_FUNCTIONS(X509_REVOKED)
IMPLEMENT_ASN1_FUNCTIONS(X509_CRL_INFO)
IMPLEMENT_ASN1_FUNCTIONS(X509_CRL)
+IMPLEMENT_ASN1_DUP_FUNCTION(X509_CRL)
static int X509_REVOKED_cmp(const X509_REVOKED * const *a,
const X509_REVOKED * const *b)
(ASN1_STRING *)(*b)->serialNumber));
}
-static int X509_REVOKED_seq_cmp(const X509_REVOKED * const *a,
- const X509_REVOKED * const *b)
- {
- return((*a)->sequence-(*b)->sequence);
- }
-
int X509_CRL_add0_revoked(X509_CRL *crl, X509_REVOKED *rev)
{
X509_CRL_INFO *inf;
ASN1err(ASN1_F_X509_CRL_ADD0_REVOKED, ERR_R_MALLOC_FAILURE);
return 0;
}
+ inf->enc.modified = 1;
return 1;
}
+int X509_CRL_verify(X509_CRL *crl, EVP_PKEY *r)
+ {
+ if (crl->meth->crl_verify)
+ return crl->meth->crl_verify(crl, r);
+ return 0;
+ }
+
+int X509_CRL_get0_by_serial(X509_CRL *crl,
+ X509_REVOKED **ret, ASN1_INTEGER *serial)
+ {
+ if (crl->meth->crl_lookup)
+ return crl->meth->crl_lookup(crl, ret, serial);
+ return 0;
+ }
+
+static int def_crl_verify(X509_CRL *crl, EVP_PKEY *r)
+ {
+ return(ASN1_item_verify(ASN1_ITEM_rptr(X509_CRL_INFO),
+ crl->sig_alg, crl->signature,crl->crl,r));
+ }
+
+static int def_crl_lookup(X509_CRL *crl,
+ X509_REVOKED **ret, ASN1_INTEGER *serial)
+ {
+ X509_REVOKED rtmp;
+ int idx;
+ rtmp.serialNumber = serial;
+ /* Sort revoked into serial number order if not already sorted.
+ * Do this under a lock to avoid race condition.
+ */
+ if (!sk_X509_REVOKED_is_sorted(crl->crl->revoked))
+ {
+ CRYPTO_w_lock(CRYPTO_LOCK_X509_CRL);
+ sk_X509_REVOKED_sort(crl->crl->revoked);
+ CRYPTO_w_unlock(CRYPTO_LOCK_X509_CRL);
+ }
+ idx = sk_X509_REVOKED_find(crl->crl->revoked, &rtmp);
+ /* If found assume revoked: want something cleverer than
+ * this to handle entry extensions in V2 CRLs.
+ */
+ if(idx >= 0)
+ {
+ if (ret)
+ *ret = sk_X509_REVOKED_value(crl->crl->revoked, idx);
+ return 1;
+ }
+ return 0;
+ }
+
+void X509_CRL_set_default_method(const X509_CRL_METHOD *meth)
+ {
+ if (meth == NULL)
+ default_crl_method = &int_crl_meth;
+ else
+ default_crl_method = meth;
+ }
+
+X509_CRL_METHOD *X509_CRL_METHOD_new(
+ int (*crl_init)(X509_CRL *crl),
+ int (*crl_free)(X509_CRL *crl),
+ int (*crl_lookup)(X509_CRL *crl, X509_REVOKED **ret, ASN1_INTEGER *ser),
+ int (*crl_verify)(X509_CRL *crl, EVP_PKEY *pk))
+ {
+ X509_CRL_METHOD *m;
+ m = OPENSSL_malloc(sizeof(X509_CRL_METHOD));
+ if (!m)
+ return NULL;
+ m->crl_init = crl_init;
+ m->crl_free = crl_free;
+ m->crl_lookup = crl_lookup;
+ m->crl_verify = crl_verify;
+ m->flags = X509_CRL_METHOD_DYNAMIC;
+ return m;
+ }
+
+void X509_CRL_METHOD_free(X509_CRL_METHOD *m)
+ {
+ if (!(m->flags & X509_CRL_METHOD_DYNAMIC))
+ return;
+ OPENSSL_free(m);
+ }
+
+void X509_CRL_set_meth_data(X509_CRL *crl, void *dat)
+ {
+ crl->meth_data = dat;
+ }
+
+void *X509_CRL_get_meth_data(X509_CRL *crl)
+ {
+ return crl->meth_data;
+ }
+
IMPLEMENT_STACK_OF(X509_REVOKED)
IMPLEMENT_ASN1_SET_OF(X509_REVOKED)
IMPLEMENT_STACK_OF(X509_CRL)
projects / openssl.git / blobdiff