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authorHerbert Xu <herbert@gondor.apana.org.au>2008-08-03 21:15:23 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2008-08-29 15:49:57 +1000
commit73d3864a4823abda19ebc4387b6ddcbf416e3a77 (patch)
tree2939754dc2532f412c34a974e5f22dde112c525d /crypto/algboss.c
parentda7f033ddc9fdebb3223b0bf88a2a2ab5b797608 (diff)
downloadlinux-linaro-android-73d3864a4823abda19ebc4387b6ddcbf416e3a77.tar.gz
crypto: api - Use test infrastructure
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>
Diffstat (limited to 'crypto/algboss.c')
-rw-r--r--crypto/algboss.c75
1 files changed, 70 insertions, 5 deletions
diff --git a/crypto/algboss.c b/crypto/algboss.c
index 2662ac01484..ed9f663c82c 100644
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -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;