From 51036a43753f565443acdb81f2ed2857c029ee68 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Fri, 1 Sep 2023 11:28:33 -0400 Subject: implement dupctx for aes_WRAP methods create a dupctx method for aes_WRAP implementations of all sizes Fixes #21887 Reviewed-by: Paul Dale Reviewed-by: Tomas Mraz Reviewed-by: Matt Caswell (Merged from https://github.com/openssl/openssl/pull/23102) (cherry picked from commit a5bea0a8d423c7e52052d903b99f75034e78cecf) --- providers/implementations/ciphers/cipher_aes_wrp.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/providers/implementations/ciphers/cipher_aes_wrp.c b/providers/implementations/ciphers/cipher_aes_wrp.c index 8bddf475e2..945bdc5a18 100644 --- a/providers/implementations/ciphers/cipher_aes_wrp.c +++ b/providers/implementations/ciphers/cipher_aes_wrp.c @@ -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, \ -- cgit v1.2.3