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implement dupctx for aes_WRAP methods 

create a dupctx method for aes_WRAP implementations of all sizes

Fixes #21887

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21933)

(cherry picked from commit 2c021e7d11)
This commit is contained in:
Neil Horman 2023-09-01 11:28:33 -04:00 committed by Tomas Mraz
parent a982016c56
commit 819ae76bb7
1 changed files with 21 additions and 0 deletions
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21
providers/implementations/ciphers/cipher_aes_wrp.c
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@ -66,6 +66,26 @@ static void *aes_wrap_newctx(size_t kbits, size_t blkbits,
return wctx;
}
static void *aes_wrap_dupctx(void *wctx)
{
PROV_AES_WRAP_CTX *ctx = wctx;
PROV_AES_WRAP_CTX *dctx = wctx;
if (ctx == NULL)
return NULL;
dctx = OPENSSL_memdup(ctx, sizeof(*ctx));
if (dctx != NULL && dctx->base.tlsmac != NULL && dctx->base.alloced) {
dctx->base.tlsmac = OPENSSL_memdup(dctx->base.tlsmac,
dctx->base.tlsmacsize);
if (dctx->base.tlsmac == NULL) {
OPENSSL_free(dctx);
dctx = NULL;
}
}
return dctx;
}
static void aes_wrap_freectx(void *vctx)
{
PROV_AES_WRAP_CTX *wctx = (PROV_AES_WRAP_CTX *)vctx;
@ -281,6 +301,7 @@ static int aes_wrap_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{ OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))aes_##mode##_cipher }, \
{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))aes_##mode##_final }, \
{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))aes_##mode##_freectx }, \
{ OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))aes_##mode##_dupctx }, \
{ OSSL_FUNC_CIPHER_GET_PARAMS, \
(void (*)(void))aes_##kbits##_##fname##_get_params }, \
{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \