diff options
Diffstat (limited to 'lib/accelerated/x86/sha-x86-ssse3.c')
| -rw-r--r-- | lib/accelerated/x86/sha-x86-ssse3.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/accelerated/x86/sha-x86-ssse3.c b/lib/accelerated/x86/sha-x86-ssse3.c index 5dc9da6349..b6393488cf 100644 --- a/lib/accelerated/x86/sha-x86-ssse3.c +++ b/lib/accelerated/x86/sha-x86-ssse3.c @@ -311,6 +311,25 @@ static int wrap_x86_hash_init(gnutls_digest_algorithm_t algo, void **_ctx) return 0; } +static void * +wrap_x86_hash_copy(const void *_ctx) +{ + struct x86_hash_ctx *new_ctx; + const struct x86_hash_ctx *ctx=_ctx; + ptrdiff_t off = (uint8_t *)ctx->ctx_ptr - (uint8_t *)(&ctx->ctx); + + new_ctx = gnutls_malloc(sizeof(struct x86_hash_ctx)); + if (new_ctx == NULL) { + gnutls_assert(); + return NULL; + } + + memcpy(new_ctx, ctx, sizeof(*new_ctx)); + new_ctx->ctx_ptr = (uint8_t *)&new_ctx->ctx + off; + + return new_ctx; +} + static int wrap_x86_hash_output(void *src_ctx, void *digest, size_t digestsize) { @@ -360,6 +379,7 @@ const gnutls_crypto_digest_st _gnutls_sha_x86_ssse3 = { .init = wrap_x86_hash_init, .hash = wrap_x86_hash_update, .output = wrap_x86_hash_output, + .copy = wrap_x86_hash_copy, .deinit = wrap_x86_hash_deinit, .fast = wrap_x86_hash_fast, }; |