diff options
| author | Neil Horman <nhorman@openssl.org> | 2023-09-01 13:22:03 -0400 |
|---|---|---|
| committer | Tomas Mraz <tomas@openssl.org> | 2023-09-12 15:59:11 +0200 |
| commit | df93b3c9e72571876bd01e5a50a5ba8368c6c77f (patch) | |
| tree | 0a9ef516606b87c5bdcaeacee68595872cdfbffd /providers/implementations | |
| parent | c32c3f2653e6c6ac42e09a83a2f51f8667827a04 (diff) | |
implement dupctx for chacha20_poly1305
Same as chacha20 in the last commit, just clone the ctx and its
underlying tlsmac array if its allocated
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)
Diffstat (limited to 'providers/implementations')
| -rw-r--r-- | providers/implementations/ciphers/cipher_chacha20_poly1305.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/providers/implementations/ciphers/cipher_chacha20_poly1305.c b/providers/implementations/ciphers/cipher_chacha20_poly1305.c index 662b4e03e5..d5d4e1a251 100644 --- a/providers/implementations/ciphers/cipher_chacha20_poly1305.c +++ b/providers/implementations/ciphers/cipher_chacha20_poly1305.c @@ -23,6 +23,7 @@ static OSSL_FUNC_cipher_newctx_fn chacha20_poly1305_newctx; static OSSL_FUNC_cipher_freectx_fn chacha20_poly1305_freectx; +static OSSL_FUNC_cipher_dupctx_fn chacha20_poly1305_dupctx; static OSSL_FUNC_cipher_encrypt_init_fn chacha20_poly1305_einit; static OSSL_FUNC_cipher_decrypt_init_fn chacha20_poly1305_dinit; static OSSL_FUNC_cipher_get_params_fn chacha20_poly1305_get_params; @@ -58,6 +59,25 @@ static void *chacha20_poly1305_newctx(void *provctx) return ctx; } +static void *chacha20_poly1305_dupctx(void *provctx) +{ + PROV_CHACHA20_POLY1305_CTX *ctx = provctx; + PROV_CHACHA20_POLY1305_CTX *dctx = NULL; + + 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 chacha20_poly1305_freectx(void *vctx) { PROV_CHACHA20_POLY1305_CTX *ctx = (PROV_CHACHA20_POLY1305_CTX *)vctx; @@ -310,6 +330,7 @@ static int chacha20_poly1305_final(void *vctx, unsigned char *out, size_t *outl, const OSSL_DISPATCH ossl_chacha20_ossl_poly1305_functions[] = { { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))chacha20_poly1305_newctx }, { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))chacha20_poly1305_freectx }, + { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))chacha20_poly1305_dupctx }, { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))chacha20_poly1305_einit }, { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))chacha20_poly1305_dinit }, { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))chacha20_poly1305_update }, |