Place standard CRL behaviour in default X509_CRL_METHOD new functions to
authorDr. Stephen Henson <steve@openssl.org>
Tue, 3 Oct 2006 02:47:59 +0000 (02:47 +0000)
committerDr. Stephen Henson <steve@openssl.org>
Tue, 3 Oct 2006 02:47:59 +0000 (02:47 +0000)
create, free and set default CRL method.

crypto/asn1/asn1_locl.h
crypto/asn1/x_crl.c
crypto/x509/x509.h

index 318e27e..3cead31 100644 (file)
@@ -121,8 +121,11 @@ struct evp_pkey_asn1_method_st
  * efficient callbacks: for example a CRL entry database.
  */
 
+#define X509_CRL_METHOD_DYNAMIC                1
+
 struct x509_crl_method_st
        {
+       int flags;
        int (*crl_init)(X509_CRL *crl);
        int (*crl_free)(X509_CRL *crl);
        int (*crl_lookup)(X509_CRL *crl, X509_REVOKED **ret, ASN1_INTEGER *ser);
index 0c4dd55..5fed086 100644 (file)
@@ -73,6 +73,20 @@ ASN1_SEQUENCE(X509_REVOKED) = {
        ASN1_SEQUENCE_OF_OPT(X509_REVOKED,extensions, X509_EXTENSION)
 } ASN1_SEQUENCE_END(X509_REVOKED)
 
+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.
@@ -123,7 +137,8 @@ static int crl_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
                crl->akid = NULL;
                crl->flags = 0;
                crl->idp_flags = 0;
-               crl->meth = 0;
+               crl->meth = default_crl_method;
+               crl->meth_data = NULL;
                break;
 
                case ASN1_OP_D2I_POST:
@@ -161,13 +176,19 @@ static int crl_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
                                break;
                                }
                        }
-               if (crl->meth && crl->meth->crl_init)
-                       return crl->meth->crl_init(crl);
+               if (crl->meth->crl_init)
+                       {
+                       if (crl->meth->crl_init(crl) == 0)
+                               return 0;
+                       }
                break;
 
                case ASN1_OP_FREE_POST:
-               if (crl->meth && crl->meth->crl_free)
-                       return crl->meth->crl_free(crl);
+               if (crl->meth->crl_free)
+                       {
+                       if (!crl->meth->crl_free(crl))
+                               return 0;
+                       }
                if (crl->akid)
                        AUTHORITY_KEYID_free(crl->akid);
                if (crl->idp)
@@ -252,19 +273,30 @@ int X509_CRL_add0_revoked(X509_CRL *crl, X509_REVOKED *rev)
 
 int X509_CRL_verify(X509_CRL *crl, EVP_PKEY *r)
        {
-       if (crl->meth && crl->meth->crl_verify)
+       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));
        }
 
-int X509_CRL_get0_by_serial(X509_CRL *crl,
+static int def_crl_lookup(X509_CRL *crl,
                X509_REVOKED **ret, ASN1_INTEGER *serial)
        {
        X509_REVOKED rtmp;
        int idx;
-       if (crl->meth && crl->meth->crl_lookup)
-               return crl->meth->crl_lookup(crl, ret, serial);
        rtmp.serialNumber = serial;
        /* Sort revoked into serial number order if not already sorted.
         * Do this under a lock to avoid race condition.
@@ -288,6 +320,49 @@ int X509_CRL_get0_by_serial(X509_CRL *crl,
        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)
index f28086c..51c5a0a 100644 (file)
@@ -460,7 +460,8 @@ struct X509_crl_st
 #ifndef OPENSSL_NO_SHA
        unsigned char sha1_hash[SHA_DIGEST_LENGTH];
 #endif
-       X509_CRL_METHOD *meth;
+       const X509_CRL_METHOD *meth;
+       void *meth_data;
        } /* X509_CRL */;
 
 DECLARE_STACK_OF(X509_CRL)
@@ -748,6 +749,22 @@ extern "C" {
 #define                X509_CRL_get_issuer(x) ((x)->crl->issuer)
 #define                X509_CRL_get_REVOKED(x) ((x)->crl->revoked)
 
+void X509_CRL_set_default_method(const X509_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));
+void X509_CRL_METHOD_free(X509_CRL_METHOD *m);
+
+void X509_CRL_set_meth_data(X509_CRL *crl, void *dat);
+void *X509_CRL_get_meth_data(X509_CRL *crl);
+
+IMPLEMENT_STACK_OF(X509_REVOKED)
+IMPLEMENT_ASN1_SET_OF(X509_REVOKED)
+IMPLEMENT_STACK_OF(X509_CRL)
+IMPLEMENT_ASN1_SET_OF(X509_CRL)
+
 /* This one is only used so that a binary form can output, as in
  * i2d_X509_NAME(X509_get_X509_PUBKEY(x),&buf) */
 #define        X509_get_X509_PUBKEY(x) ((x)->cert_info->key)