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crypto: crc32c - Test descriptor context format

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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: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2008-11-07 14:58:52 +08:00
parent b7e8bdadce
commit 8e3ee85e68
1 changed files with 50 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

51
crypto/testmgr.c
View file

@ -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,