From 1052671ca118b79fa3f5de281bba850aaf20bbf5 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 4 May 2025 21:33:21 +0800 Subject: crypto: ahash - Add core export and import Add crypto_ahash_export_core and crypto_ahash_import_core. For now they only differ from the normal export/import functions when going through shash. Signed-off-by: Herbert Xu --- crypto/ahash.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) (limited to 'crypto') diff --git a/crypto/ahash.c b/crypto/ahash.c index 736e9fb5d0a4..344bf1b43e71 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -698,6 +698,16 @@ static int ahash_def_finup(struct ahash_request *req) return ahash_def_finup_finish1(req, err); } +int crypto_ahash_export_core(struct ahash_request *req, void *out) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + + if (likely(tfm->using_shash)) + return crypto_shash_export_core(ahash_request_ctx(req), out); + return crypto_ahash_alg(tfm)->export(req, out); +} +EXPORT_SYMBOL_GPL(crypto_ahash_export_core); + int crypto_ahash_export(struct ahash_request *req, void *out) { struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); @@ -708,6 +718,19 @@ int crypto_ahash_export(struct ahash_request *req, void *out) } EXPORT_SYMBOL_GPL(crypto_ahash_export); +int crypto_ahash_import_core(struct ahash_request *req, const void *in) +{ + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + + if (likely(tfm->using_shash)) + return crypto_shash_import_core(prepare_shash_desc(req, tfm), + in); + if (crypto_ahash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) + return -ENOKEY; + return crypto_ahash_alg(tfm)->import(req, in); +} +EXPORT_SYMBOL_GPL(crypto_ahash_import_core); + int crypto_ahash_import(struct ahash_request *req, const void *in) { struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); @@ -716,7 +739,7 @@ int crypto_ahash_import(struct ahash_request *req, const void *in) return crypto_shash_import(prepare_shash_desc(req, tfm), in); if (crypto_ahash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) return -ENOKEY; - return crypto_ahash_alg(tfm)->import(req, in); + return crypto_ahash_import_core(req, in); } EXPORT_SYMBOL_GPL(crypto_ahash_import); -- cgit v1.2.3