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crypto: padlock-sha - Make descsize an algorithm attribute

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Rather than setting descsize in init_tfm, set it statically and
double-check it in init_tfm.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2025-04-12 18:47:40 +08:00
parent f1440a9046
commit 34f442a3a0
1 changed files with 11 additions and 3 deletions
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14
drivers/crypto/padlock-sha.c
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@ -206,8 +206,14 @@ static int padlock_init_tfm(struct crypto_shash *hash)
return PTR_ERR(fallback_tfm);
}
if (crypto_shash_descsize(hash) < sizeof(struct padlock_sha_desc) +
crypto_shash_descsize(fallback_tfm)) {
crypto_free_shash(fallback_tfm);
return -EINVAL;
}
ctx->fallback = fallback_tfm;
hash->descsize += crypto_shash_descsize(fallback_tfm);
return 0;
}
@ -228,7 +234,8 @@ static struct shash_alg sha1_alg = {
.import = padlock_sha_import,
.init_tfm = padlock_init_tfm,
.exit_tfm = padlock_exit_tfm,
.descsize = sizeof(struct padlock_sha_desc),
.descsize = sizeof(struct padlock_sha_desc) +
sizeof(struct sha1_state),
.statesize = sizeof(struct sha1_state),
.base = {
.cra_name = "sha1",
@ -251,7 +258,8 @@ static struct shash_alg sha256_alg = {
.import = padlock_sha_import,
.init_tfm = padlock_init_tfm,
.exit_tfm = padlock_exit_tfm,
.descsize = sizeof(struct padlock_sha_desc),
.descsize = sizeof(struct padlock_sha_desc) +
sizeof(struct sha256_state),
.statesize = sizeof(struct sha256_state),
.base = {
.cra_name = "sha256",