mirror of
https://github.com/openssl/openssl.git
synced 2024-12-21 06:09:35 +08:00
e077455e9e
Since OPENSSL_malloc() and friends report ERR_R_MALLOC_FAILURE, and
at least handle the file name and line number they are called from,
there's no need to report ERR_R_MALLOC_FAILURE where they are called
directly, or when SSLfatal() and RLAYERfatal() is used, the reason
`ERR_R_MALLOC_FAILURE` is changed to `ERR_R_CRYPTO_LIB`.
There were a number of places where `ERR_R_MALLOC_FAILURE` was reported
even though it was a function from a different sub-system that was
called. Those places are changed to report ERR_R_{lib}_LIB, where
{lib} is the name of that sub-system.
Some of them are tricky to get right, as we have a lot of functions
that belong in the ASN1 sub-system, and all the `sk_` calls or from
the CRYPTO sub-system.
Some extra adaptation was necessary where there were custom OPENSSL_malloc()
wrappers, and some bugs are fixed alongside these changes.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19301)
324 lines
12 KiB
C
324 lines
12 KiB
C
/*
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* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/* Dispatch functions for AES SIV mode */
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/*
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* This file uses the low level AES functions (which are deprecated for
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* non-internal use) in order to implement provider AES ciphers.
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*/
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#include "internal/deprecated.h"
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#include <openssl/proverr.h>
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#include "prov/implementations.h"
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#include "prov/providercommon.h"
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#include "prov/ciphercommon_aead.h"
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#include "prov/provider_ctx.h"
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#include "cipher_aes_gcm_siv.h"
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static int ossl_aes_gcm_siv_set_ctx_params(void *vctx, const OSSL_PARAM params[]);
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static void *ossl_aes_gcm_siv_newctx(void *provctx, size_t keybits)
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{
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PROV_AES_GCM_SIV_CTX *ctx;
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if (!ossl_prov_is_running())
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return NULL;
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ctx = OPENSSL_zalloc(sizeof(*ctx));
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if (ctx != NULL) {
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ctx->key_len = keybits / 8;
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ctx->hw = ossl_prov_cipher_hw_aes_gcm_siv(keybits);
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ctx->libctx = PROV_LIBCTX_OF(provctx);
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ctx->provctx = provctx;
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}
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return ctx;
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}
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static void ossl_aes_gcm_siv_freectx(void *vctx)
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{
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PROV_AES_GCM_SIV_CTX *ctx = (PROV_AES_GCM_SIV_CTX *)vctx;
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if (ctx == NULL)
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return;
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OPENSSL_clear_free(ctx->aad, ctx->aad_len);
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ctx->hw->clean_ctx(ctx);
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OPENSSL_clear_free(ctx, sizeof(*ctx));
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}
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static void *ossl_aes_gcm_siv_dupctx(void *vctx)
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{
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PROV_AES_GCM_SIV_CTX *in = (PROV_AES_GCM_SIV_CTX *)vctx;
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PROV_AES_GCM_SIV_CTX *ret;
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if (!ossl_prov_is_running())
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return NULL;
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if (in->hw == NULL)
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return NULL;
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ret = OPENSSL_memdup(in, sizeof(*in));
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if (ret == NULL)
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return NULL;
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/* NULL-out these things we create later */
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ret->aad = NULL;
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ret->ecb_ctx = NULL;
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if (in->aad == NULL) {
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if ((ret->aad = OPENSSL_memdup(in->aad, UP16(ret->aad_len))) == NULL)
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goto err;
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}
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if (!in->hw->dup_ctx(ret, in))
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goto err;
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return ret;
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err:
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if (ret != NULL) {
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OPENSSL_clear_free(ret->aad, ret->aad_len);
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OPENSSL_free(ret);
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}
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return NULL;
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}
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static int ossl_aes_gcm_siv_init(void *vctx, const unsigned char *key, size_t keylen,
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const unsigned char *iv, size_t ivlen,
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const OSSL_PARAM params[], int enc)
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{
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PROV_AES_GCM_SIV_CTX *ctx = (PROV_AES_GCM_SIV_CTX *)vctx;
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if (!ossl_prov_is_running())
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return 0;
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ctx->enc = enc;
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if (key != NULL) {
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if (keylen != ctx->key_len) {
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ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
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return 0;
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}
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memcpy(ctx->key_gen_key, key, ctx->key_len);
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}
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if (iv != NULL) {
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if (ivlen != sizeof(ctx->nonce)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_IV_LENGTH);
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return 0;
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}
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memcpy(ctx->nonce, iv, sizeof(ctx->nonce));
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}
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if (!ctx->hw->initkey(ctx))
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return 0;
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return ossl_aes_gcm_siv_set_ctx_params(ctx, params);
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}
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static int ossl_aes_gcm_siv_einit(void *vctx, const unsigned char *key, size_t keylen,
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const unsigned char *iv, size_t ivlen,
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const OSSL_PARAM params[])
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{
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return ossl_aes_gcm_siv_init(vctx, key, keylen, iv, ivlen, params, 1);
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}
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static int ossl_aes_gcm_siv_dinit(void *vctx, const unsigned char *key, size_t keylen,
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const unsigned char *iv, size_t ivlen,
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const OSSL_PARAM params[])
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{
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return ossl_aes_gcm_siv_init(vctx, key, keylen, iv, ivlen, params, 0);
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}
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#define ossl_aes_gcm_siv_stream_update ossl_aes_gcm_siv_cipher
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static int ossl_aes_gcm_siv_cipher(void *vctx, unsigned char *out, size_t *outl,
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size_t outsize, const unsigned char *in, size_t inl)
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{
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PROV_AES_GCM_SIV_CTX *ctx = (PROV_AES_GCM_SIV_CTX *)vctx;
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int error = 0;
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if (!ossl_prov_is_running())
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return 0;
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/* The RFC has a test case for this, but we don't try to do anything */
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if (inl == 0) {
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if (outl != NULL)
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*outl = 0;
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return 1;
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}
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if (outsize < inl) {
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ERR_raise(ERR_LIB_PROV, PROV_R_OUTPUT_BUFFER_TOO_SMALL);
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return 0;
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}
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error |= !ctx->hw->cipher(ctx, out, in, inl);
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if (outl != NULL && !error)
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*outl = inl;
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return !error;
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}
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static int ossl_aes_gcm_siv_stream_final(void *vctx, unsigned char *out, size_t *outl,
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size_t outsize)
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{
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PROV_AES_GCM_SIV_CTX *ctx = (PROV_AES_GCM_SIV_CTX *)vctx;
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int error = 0;
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if (!ossl_prov_is_running())
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return 0;
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error |= !ctx->hw->cipher(vctx, out, NULL, 0);
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if (outl != NULL && !error)
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*outl = 0;
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return !error;
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}
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static int ossl_aes_gcm_siv_get_ctx_params(void *vctx, OSSL_PARAM params[])
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{
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PROV_AES_GCM_SIV_CTX *ctx = (PROV_AES_GCM_SIV_CTX *)vctx;
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OSSL_PARAM *p;
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p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_AEAD_TAG);
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if (p != NULL && p->data_type == OSSL_PARAM_OCTET_STRING) {
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if (!ctx->enc || !ctx->generated_tag
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|| p->data_size != sizeof(ctx->tag)
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|| !OSSL_PARAM_set_octet_string(p, ctx->tag, sizeof(ctx->tag))) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
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return 0;
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}
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}
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p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_AEAD_TAGLEN);
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if (p != NULL && !OSSL_PARAM_set_size_t(p, sizeof(ctx->tag))) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
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return 0;
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}
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p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_KEYLEN);
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if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->key_len)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
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return 0;
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}
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return 1;
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}
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static const OSSL_PARAM aes_gcm_siv_known_gettable_ctx_params[] = {
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OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
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OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_AEAD_TAGLEN, NULL),
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OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG, NULL, 0),
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OSSL_PARAM_END
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};
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static const OSSL_PARAM *ossl_aes_gcm_siv_gettable_ctx_params(ossl_unused void *cctx,
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ossl_unused void *provctx)
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{
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return aes_gcm_siv_known_gettable_ctx_params;
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}
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static int ossl_aes_gcm_siv_set_ctx_params(void *vctx, const OSSL_PARAM params[])
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{
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PROV_AES_GCM_SIV_CTX *ctx = (PROV_AES_GCM_SIV_CTX *)vctx;
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const OSSL_PARAM *p;
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unsigned int speed = 0;
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if (params == NULL)
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return 1;
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p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_AEAD_TAG);
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if (p != NULL) {
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if (p->data_type != OSSL_PARAM_OCTET_STRING
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|| p->data_size != sizeof(ctx->user_tag)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
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return 0;
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}
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if (!ctx->enc) {
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memcpy(ctx->user_tag, p->data, sizeof(ctx->tag));
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ctx->have_user_tag = 1;
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}
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}
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p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_SPEED);
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if (p != NULL) {
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if (!OSSL_PARAM_get_uint(p, &speed)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
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return 0;
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}
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ctx->speed = !!speed;
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}
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p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_KEYLEN);
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if (p != NULL) {
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size_t key_len;
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if (!OSSL_PARAM_get_size_t(p, &key_len)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
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return 0;
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}
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/* The key length can not be modified */
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if (key_len != ctx->key_len) {
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ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
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return 0;
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}
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}
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return 1;
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}
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static const OSSL_PARAM aes_gcm_siv_known_settable_ctx_params[] = {
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OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
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OSSL_PARAM_uint(OSSL_CIPHER_PARAM_SPEED, NULL),
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OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TAG, NULL, 0),
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OSSL_PARAM_END
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};
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static const OSSL_PARAM *ossl_aes_gcm_siv_settable_ctx_params(ossl_unused void *cctx,
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ossl_unused void *provctx)
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{
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return aes_gcm_siv_known_settable_ctx_params;
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}
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#define IMPLEMENT_cipher(alg, lc, UCMODE, flags, kbits, blkbits, ivbits) \
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static OSSL_FUNC_cipher_newctx_fn ossl_##alg##kbits##_##lc##_newctx; \
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static OSSL_FUNC_cipher_freectx_fn ossl_##alg##_##lc##_freectx; \
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static OSSL_FUNC_cipher_dupctx_fn ossl_##alg##_##lc##_dupctx; \
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static OSSL_FUNC_cipher_encrypt_init_fn ossl_##alg##_##lc##_einit; \
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static OSSL_FUNC_cipher_decrypt_init_fn ossl_##alg##_##lc##_dinit; \
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static OSSL_FUNC_cipher_update_fn ossl_##alg##_##lc##_stream_update; \
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static OSSL_FUNC_cipher_final_fn ossl_##alg##_##lc##_stream_final; \
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static OSSL_FUNC_cipher_cipher_fn ossl_##alg##_##lc##_cipher; \
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static OSSL_FUNC_cipher_get_params_fn ossl_##alg##_##kbits##_##lc##_get_params; \
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static OSSL_FUNC_cipher_get_ctx_params_fn ossl_##alg##_##lc##_get_ctx_params; \
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static OSSL_FUNC_cipher_gettable_ctx_params_fn ossl_##alg##_##lc##_gettable_ctx_params; \
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static OSSL_FUNC_cipher_set_ctx_params_fn ossl_##alg##_##lc##_set_ctx_params; \
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static OSSL_FUNC_cipher_settable_ctx_params_fn ossl_##alg##_##lc##_settable_ctx_params; \
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static int ossl_##alg##_##kbits##_##lc##_get_params(OSSL_PARAM params[]) \
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{ \
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return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \
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flags, kbits, blkbits, ivbits); \
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} \
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static void * ossl_##alg##kbits##_##lc##_newctx(void *provctx) \
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{ \
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return ossl_##alg##_##lc##_newctx(provctx, kbits); \
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} \
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const OSSL_DISPATCH ossl_##alg##kbits##lc##_functions[] = { \
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{ OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))ossl_##alg##kbits##_##lc##_newctx }, \
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{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))ossl_##alg##_##lc##_freectx }, \
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{ OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))ossl_##alg##_##lc##_dupctx }, \
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{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))ossl_##alg##_##lc##_einit }, \
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{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))ossl_##alg##_##lc##_dinit }, \
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{ OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))ossl_##alg##_##lc##_stream_update }, \
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{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))ossl_##alg##_##lc##_stream_final }, \
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{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_##alg##_##lc##_cipher }, \
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{ OSSL_FUNC_CIPHER_GET_PARAMS, (void (*)(void))ossl_##alg##_##kbits##_##lc##_get_params }, \
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{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS, (void (*)(void))ossl_cipher_generic_gettable_params }, \
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{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS, (void (*)(void))ossl_##alg##_##lc##_get_ctx_params }, \
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{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, (void (*)(void))ossl_##alg##_##lc##_gettable_ctx_params }, \
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{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS, (void (*)(void))ossl_##alg##_##lc##_set_ctx_params }, \
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{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, (void (*)(void))ossl_##alg##_##lc##_settable_ctx_params }, \
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{ 0, NULL } \
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}
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IMPLEMENT_cipher(aes, gcm_siv, GCM_SIV, AEAD_FLAGS, 128, 8, 96);
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IMPLEMENT_cipher(aes, gcm_siv, GCM_SIV, AEAD_FLAGS, 192, 8, 96);
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IMPLEMENT_cipher(aes, gcm_siv, GCM_SIV, AEAD_FLAGS, 256, 8, 96);
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