Commit 8e3ee85e authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: crc32c - Test descriptor context format 



This patch adds a test for the requirement that all crc32c algorithms
shall store the partial result in the first four bytes of the descriptor
context.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent b7e8bdad

crypto/testmgr.c

+50 −1
Original line number Diff line number Diff line
@@ -1010,6 +1010,55 @@ static int alg_test_hash(const struct alg_test_desc *desc, const char *driver, 
	return err;

}



static int alg_test_crc32c(const struct alg_test_desc *desc,

			   const char *driver, u32 type, u32 mask)

{

	struct crypto_shash *tfm;

	u32 val;

	int err;



	err = alg_test_hash(desc, driver, type, mask);

	if (err)

		goto out;



	tfm = crypto_alloc_shash(driver, type, mask);

	if (IS_ERR(tfm)) {

		printk(KERN_ERR "alg: crc32c: Failed to load transform for %s: "

		       "%ld\n", driver, PTR_ERR(tfm));

		err = PTR_ERR(tfm);

		goto out;

	}



	do {

		struct {

			struct shash_desc shash;

			char ctx[crypto_shash_descsize(tfm)];

		} sdesc;



		sdesc.shash.tfm = tfm;

		sdesc.shash.flags = 0;



		*(u32 *)sdesc.ctx = le32_to_cpu(420553207);

		err = crypto_shash_final(&sdesc.shash, (u8 *)&val);

		if (err) {

			printk(KERN_ERR "alg: crc32c: Operation failed for "

			       "%s: %d\n", driver, err);

			break;

		}



		if (val != ~420553207) {

			printk(KERN_ERR "alg: crc32c: Test failed for %s: "

			       "%d\n", driver, val);

			err = -EINVAL;

		}

	} while (0);



	crypto_free_shash(tfm);



out:

	return err;

}



/* Please keep this list sorted by algorithm name. */

static const struct alg_test_desc alg_test_descs[] = {

	{
@@ -1134,7 +1183,7 @@ static const struct alg_test_desc alg_test_descs[] = { 
		}

	}, {

		.alg = "crc32c",

		.test = alg_test_hash,

		.test = alg_test_crc32c,

		.suite = {

			.hash = {

				.vecs = crc32c_tv_template,

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