/*
* Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
#include <stdarg.h>
#include <openssl/evp.h>
#include <openssl/err.h>
+#include <openssl/core.h>
+#include <openssl/core_names.h>
#include <openssl/ossl_typ.h>
#include "internal/nelem.h"
#include "internal/evp_int.h"
+#include "internal/provider.h"
#include "evp_locl.h"
-EVP_MAC_CTX *EVP_MAC_CTX_new_id(int id)
-{
- const EVP_MAC *mac = EVP_get_macbynid(id);
-
- if (mac == NULL)
- return NULL;
- return EVP_MAC_CTX_new(mac);
-}
-
-EVP_MAC_CTX *EVP_MAC_CTX_new(const EVP_MAC *mac)
+EVP_MAC_CTX *EVP_MAC_CTX_new(EVP_MAC *mac)
{
EVP_MAC_CTX *ctx = OPENSSL_zalloc(sizeof(EVP_MAC_CTX));
- if (ctx == NULL || (ctx->data = mac->new()) == NULL) {
+ if (ctx == NULL
+ || (ctx->data = mac->newctx(ossl_provider_ctx(mac->prov))) == NULL
+ || !EVP_MAC_up_ref(mac)) {
EVPerr(EVP_F_EVP_MAC_CTX_NEW, ERR_R_MALLOC_FAILURE);
+ if (ctx != NULL)
+ mac->freectx(ctx->data);
OPENSSL_free(ctx);
ctx = NULL;
} else {
void EVP_MAC_CTX_free(EVP_MAC_CTX *ctx)
{
- if (ctx != NULL && ctx->data != NULL) {
- ctx->meth->free(ctx->data);
+ if (ctx != NULL) {
+ ctx->meth->freectx(ctx->data);
ctx->data = NULL;
+ /* refcnt-- */
+ EVP_MAC_free(ctx->meth);
}
OPENSSL_free(ctx);
}
-int EVP_MAC_CTX_copy(EVP_MAC_CTX *dst, EVP_MAC_CTX *src)
+EVP_MAC_CTX *EVP_MAC_CTX_dup(const EVP_MAC_CTX *src)
{
- EVP_MAC_IMPL *macdata;
+ EVP_MAC_CTX *dst;
- if (src->data != NULL && !dst->meth->copy(dst->data, src->data))
- return 0;
+ if (src->data == NULL)
+ return NULL;
+
+ dst = OPENSSL_malloc(sizeof(*dst));
+ if (dst == NULL) {
+ EVPerr(EVP_F_EVP_MAC_CTX_DUP, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
- macdata = dst->data;
*dst = *src;
- dst->data = macdata;
+ if (!EVP_MAC_up_ref(dst->meth)) {
+ EVPerr(EVP_F_EVP_MAC_CTX_DUP, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(dst);
+ return NULL;
+ }
- return 1;
+ dst->data = src->meth->dupctx(src->data);
+ if (dst->data == NULL) {
+ EVP_MAC_CTX_free(dst);
+ return NULL;
+ }
+
+ return dst;
}
-const EVP_MAC *EVP_MAC_CTX_mac(EVP_MAC_CTX *ctx)
+EVP_MAC *EVP_MAC_CTX_mac(EVP_MAC_CTX *ctx)
{
return ctx->meth;
}
size_t EVP_MAC_size(EVP_MAC_CTX *ctx)
{
- if (ctx->data != NULL)
- return ctx->meth->size(ctx->data);
- /* If the MAC hasn't been initialized yet, we return zero */
+ size_t sz = 0;
+
+ if (ctx->data != NULL) {
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_MAC_PARAM_OUTLEN, &sz);
+ if (ctx->meth->ctx_get_params != NULL) {
+ if (ctx->meth->ctx_get_params(ctx->data, params))
+ return sz;
+ } else if (ctx->meth->get_params != NULL) {
+ if (ctx->meth->get_params(params))
+ return sz;
+ }
+ }
+ /*
+ * If the MAC hasn't been initialized yet, or there is no size to get,
+ * we return zero
+ */
return 0;
}
int EVP_MAC_update(EVP_MAC_CTX *ctx, const unsigned char *data, size_t datalen)
{
+ if (datalen == 0)
+ return 1;
return ctx->meth->update(ctx->data, data, datalen);
}
-int EVP_MAC_final(EVP_MAC_CTX *ctx, unsigned char *out, size_t *poutlen)
+int EVP_MAC_final(EVP_MAC_CTX *ctx,
+ unsigned char *out, size_t *outl, size_t outsize)
{
- int l = ctx->meth->size(ctx->data);
+ int l = EVP_MAC_size(ctx);
if (l < 0)
return 0;
- if (poutlen != NULL)
- *poutlen = l;
+ if (outl != NULL)
+ *outl = l;
if (out == NULL)
return 1;
- return ctx->meth->final(ctx->data, out);
-}
-
-int EVP_MAC_ctrl(EVP_MAC_CTX *ctx, int cmd, ...)
-{
- int ok = -1;
- va_list args;
-
- va_start(args, cmd);
- ok = EVP_MAC_vctrl(ctx, cmd, args);
- va_end(args);
-
- if (ok == -2)
- EVPerr(EVP_F_EVP_MAC_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
-
- return ok;
-}
-
-int EVP_MAC_vctrl(EVP_MAC_CTX *ctx, int cmd, va_list args)
-{
- int ok = 1;
-
- if (ctx == NULL || ctx->meth == NULL)
- return -2;
-
- switch (cmd) {
-#if 0
- case ...:
- /* code */
- ok = 1;
- break;
-#endif
- default:
- if (ctx->meth->ctrl != NULL)
- ok = ctx->meth->ctrl(ctx->data, cmd, args);
- else
- ok = -2;
- break;
- }
-
- return ok;
-}
-
-int EVP_MAC_ctrl_str(EVP_MAC_CTX *ctx, const char *type, const char *value)
-{
- int ok = 1;
-
- if (ctx == NULL || ctx->meth == NULL || ctx->meth->ctrl_str == NULL) {
- EVPerr(EVP_F_EVP_MAC_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
- return -2;
- }
-
- ok = ctx->meth->ctrl_str(ctx->data, type, value);
-
- if (ok == -2)
- EVPerr(EVP_F_EVP_MAC_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
- return ok;
+ return ctx->meth->final(ctx->data, out, outl, outsize);
}
-int EVP_MAC_str2ctrl(EVP_MAC_CTX *ctx, int cmd, const char *value)
+/*
+ * The {get,set}_params functions return 1 if there is no corresponding
+ * function in the implementation. This is the same as if there was one,
+ * but it didn't recognise any of the given params, i.e. nothing in the
+ * bag of parameters was useful.
+ */
+int EVP_MAC_get_params(EVP_MAC *mac, OSSL_PARAM params[])
{
- size_t len;
-
- len = strlen(value);
- if (len > INT_MAX)
- return -1;
- return EVP_MAC_ctrl(ctx, cmd, value, len);
+ if (mac->get_params != NULL)
+ return mac->get_params(params);
+ return 1;
}
-int EVP_MAC_hex2ctrl(EVP_MAC_CTX *ctx, int cmd, const char *hex)
+int EVP_MAC_CTX_get_params(EVP_MAC_CTX *ctx, OSSL_PARAM params[])
{
- unsigned char *bin;
- long binlen;
- int rv = -1;
-
- bin = OPENSSL_hexstr2buf(hex, &binlen);
- if (bin == NULL)
- return 0;
- if (binlen <= INT_MAX)
- rv = EVP_MAC_ctrl(ctx, cmd, bin, (size_t)binlen);
- OPENSSL_free(bin);
- return rv;
+ if (ctx->meth->ctx_get_params != NULL)
+ return ctx->meth->ctx_get_params(ctx->data, params);
+ return 1;
}
-int EVP_MAC_nid(const EVP_MAC *mac)
+int EVP_MAC_CTX_set_params(EVP_MAC_CTX *ctx, const OSSL_PARAM params[])
{
- return mac->type;
+ if (ctx->meth->ctx_set_params != NULL)
+ return ctx->meth->ctx_set_params(ctx->data, params);
+ return 1;
}
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