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crypto: api - Use test infrastructure

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This patch makes use of the new testing infrastructure by requiring
algorithms to pass a run-time test before they're made available to
users.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2008-08-03 21:15:23 +08:00
parent da7f033ddc
commit 73d3864a48
6 changed files with 267 additions and 42 deletions
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75
crypto/algboss.c
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@@ -45,6 +45,15 @@ struct cryptomgr_param {
char larval[CRYPTO_MAX_ALG_NAME];
char template[CRYPTO_MAX_ALG_NAME];
u32 otype;
u32 omask;
};
struct crypto_test_param {
char driver[CRYPTO_MAX_ALG_NAME];
char alg[CRYPTO_MAX_ALG_NAME];
u32 type;
};
static int cryptomgr_probe(void *data)
@@ -76,8 +85,7 @@ out:
module_put_and_exit(0);
err:
crypto_larval_error(param->larval, param->type.data.type,
param->type.data.mask);
crypto_larval_error(param->larval, param->otype, param->omask);
goto out;
}
@@ -169,13 +177,68 @@ static int cryptomgr_schedule_probe(struct crypto_larval *larval)
param->type.attr.rta_len = sizeof(param->type);
param->type.attr.rta_type = CRYPTOA_TYPE;
param->type.data.type = larval->alg.cra_flags;
param->type.data.mask = larval->mask;
param->type.data.type = larval->alg.cra_flags & ~CRYPTO_ALG_TESTED;
param->type.data.mask = larval->mask & ~CRYPTO_ALG_TESTED;
param->tb[0] = &param->type.attr;
param->otype = larval->alg.cra_flags;
param->omask = larval->mask;
memcpy(param->larval, larval->alg.cra_name, CRYPTO_MAX_ALG_NAME);
thread = kthread_run(cryptomgr_probe, param, "cryptomgr");
thread = kthread_run(cryptomgr_probe, param, "cryptomgr_probe");
if (IS_ERR(thread))
goto err_free_param;
return NOTIFY_STOP;
err_free_param:
kfree(param);
err_put_module:
module_put(THIS_MODULE);
err:
return NOTIFY_OK;
}
static int cryptomgr_test(void *data)
{
struct crypto_test_param *param = data;
u32 type = param->type;
int err = 0;
if (!((type ^ CRYPTO_ALG_TYPE_BLKCIPHER) &
CRYPTO_ALG_TYPE_BLKCIPHER_MASK) && !(type & CRYPTO_ALG_GENIV))
goto skiptest;
if ((type & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_CIPHER)
goto skiptest;
err = alg_test(param->driver, param->alg, 0, CRYPTO_ALG_TESTED);
skiptest:
crypto_alg_tested(param->driver, err);
kfree(param);
module_put_and_exit(0);
}
static int cryptomgr_schedule_test(struct crypto_alg *alg)
{
struct task_struct *thread;
struct crypto_test_param *param;
if (!try_module_get(THIS_MODULE))
goto err;
param = kzalloc(sizeof(*param), GFP_KERNEL);
if (!param)
goto err_put_module;
memcpy(param->driver, alg->cra_driver_name, sizeof(param->driver));
memcpy(param->alg, alg->cra_name, sizeof(param->alg));
param->type = alg->cra_flags;
thread = kthread_run(cryptomgr_test, param, "cryptomgr_test");
if (IS_ERR(thread))
goto err_free_param;
@@ -195,6 +258,8 @@ static int cryptomgr_notify(struct notifier_block *this, unsigned long msg,
switch (msg) {
case CRYPTO_MSG_ALG_REQUEST:
return cryptomgr_schedule_probe(data);
case CRYPTO_MSG_ALG_REGISTER:
return cryptomgr_schedule_test(data);
}
return NOTIFY_DONE;