* [PATCH v2 1/7] crypto: testmgr - expand ability to test for errors
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
@ 2019-04-12 4:57 ` Eric Biggers
2019-04-12 4:57 ` [PATCH v2 2/7] crypto: testmgr - identify test vectors by name rather than number Eric Biggers
` (8 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Eric Biggers @ 2019-04-12 4:57 UTC (permalink / raw)
To: linux-crypto, Herbert Xu
From: Eric Biggers <ebiggers@google.com>
Update testmgr to support testing for specific errors from setkey() and
digest() for hashes; setkey() and encrypt()/decrypt() for skciphers and
ciphers; and setkey(), setauthsize(), and encrypt()/decrypt() for AEADs.
This is useful because algorithms usually restrict the lengths or format
of the message, key, and/or authentication tag in some way. And bad
inputs should be tested too, not just good inputs.
As part of this change, remove the ambiguously-named 'fail' flag and
replace it with 'setkey_error = -EINVAL' for the only test vector that
used it -- the DES weak key test vector. Note that this tightens the
test to require -EINVAL rather than any error code, but AFAICS this
won't cause any test failure.
Other than that, these new fields aren't set on any test vectors yet.
Later patches will do so.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
crypto/testmgr.c | 134 +++++++++++++++++++++++++++++++----------------
crypto/testmgr.h | 20 +++++--
2 files changed, 104 insertions(+), 50 deletions(-)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 0f6bfb6ce6a46..755f0725b5279 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -971,11 +971,18 @@ static int test_hash_vec_cfg(const char *driver,
if (vec->ksize) {
err = crypto_ahash_setkey(tfm, vec->key, vec->ksize);
if (err) {
- pr_err("alg: hash: %s setkey failed with err %d on test vector %u; flags=%#x\n",
- driver, err, vec_num,
+ if (err == vec->setkey_error)
+ return 0;
+ pr_err("alg: hash: %s setkey failed on test vector %u; expected_error=%d, actual_error=%d, flags=%#x\n",
+ driver, vec_num, vec->setkey_error, err,
crypto_ahash_get_flags(tfm));
return err;
}
+ if (vec->setkey_error) {
+ pr_err("alg: hash: %s setkey unexpectedly succeeded on test vector %u; expected_error=%d\n",
+ driver, vec_num, vec->setkey_error);
+ return -EINVAL;
+ }
}
/* Build the scatterlist for the source data */
@@ -995,17 +1002,26 @@ static int test_hash_vec_cfg(const char *driver,
testmgr_poison(req->__ctx, crypto_ahash_reqsize(tfm));
testmgr_poison(result, digestsize + TESTMGR_POISON_LEN);
- if (cfg->finalization_type == FINALIZATION_TYPE_DIGEST) {
+ if (cfg->finalization_type == FINALIZATION_TYPE_DIGEST ||
+ vec->digest_error) {
/* Just using digest() */
ahash_request_set_callback(req, req_flags, crypto_req_done,
&wait);
ahash_request_set_crypt(req, tsgl->sgl, result, vec->psize);
err = do_ahash_op(crypto_ahash_digest, req, &wait, cfg->nosimd);
if (err) {
- pr_err("alg: hash: %s digest() failed with err %d on test vector %u, cfg=\"%s\"\n",
- driver, err, vec_num, cfg->name);
+ if (err == vec->digest_error)
+ return 0;
+ pr_err("alg: hash: %s digest() failed on test vector %u; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
+ driver, vec_num, vec->digest_error, err,
+ cfg->name);
return err;
}
+ if (vec->digest_error) {
+ pr_err("alg: hash: %s digest() unexpectedly succeeded on test vector %u; expected_error=%d, cfg=\"%s\"\n",
+ driver, vec_num, vec->digest_error, cfg->name);
+ return -EINVAL;
+ }
goto result_ready;
}
@@ -1262,6 +1278,7 @@ static int test_aead_vec_cfg(const char *driver, int enc,
cfg->iv_offset +
(cfg->iv_offset_relative_to_alignmask ? alignmask : 0);
struct kvec input[2];
+ int expected_error;
int err;
/* Set the key */
@@ -1270,26 +1287,33 @@ static int test_aead_vec_cfg(const char *driver, int enc,
else
crypto_aead_clear_flags(tfm, CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
err = crypto_aead_setkey(tfm, vec->key, vec->klen);
- if (err) {
- if (vec->fail) /* expectedly failed to set key? */
- return 0;
- pr_err("alg: aead: %s setkey failed with err %d on test vector %u; flags=%#x\n",
- driver, err, vec_num, crypto_aead_get_flags(tfm));
+ if (err && err != vec->setkey_error) {
+ pr_err("alg: aead: %s setkey failed on test vector %u; expected_error=%d, actual_error=%d, flags=%#x\n",
+ driver, vec_num, vec->setkey_error, err,
+ crypto_aead_get_flags(tfm));
return err;
}
- if (vec->fail) {
- pr_err("alg: aead: %s setkey unexpectedly succeeded on test vector %u\n",
- driver, vec_num);
+ if (!err && vec->setkey_error) {
+ pr_err("alg: aead: %s setkey unexpectedly succeeded on test vector %u; expected_error=%d\n",
+ driver, vec_num, vec->setkey_error);
return -EINVAL;
}
/* Set the authentication tag size */
err = crypto_aead_setauthsize(tfm, authsize);
- if (err) {
- pr_err("alg: aead: %s setauthsize failed with err %d on test vector %u\n",
- driver, err, vec_num);
+ if (err && err != vec->setauthsize_error) {
+ pr_err("alg: aead: %s setauthsize failed on test vector %u; expected_error=%d, actual_error=%d\n",
+ driver, vec_num, vec->setauthsize_error, err);
return err;
}
+ if (!err && vec->setauthsize_error) {
+ pr_err("alg: aead: %s setauthsize unexpectedly succeeded on test vector %u; expected_error=%d\n",
+ driver, vec_num, vec->setauthsize_error);
+ return -EINVAL;
+ }
+
+ if (vec->setkey_error || vec->setauthsize_error)
+ return 0;
/* The IV must be copied to a buffer, as the algorithm may modify it */
if (WARN_ON(ivsize > MAX_IVLEN))
@@ -1328,18 +1352,6 @@ static int test_aead_vec_cfg(const char *driver, int enc,
if (cfg->nosimd)
crypto_reenable_simd_for_test();
err = crypto_wait_req(err, &wait);
- if (err) {
- if (err == -EBADMSG && vec->novrfy)
- return 0;
- pr_err("alg: aead: %s %s failed with err %d on test vector %u, cfg=\"%s\"\n",
- driver, op, err, vec_num, cfg->name);
- return err;
- }
- if (vec->novrfy) {
- pr_err("alg: aead: %s %s unexpectedly succeeded on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
- return -EINVAL;
- }
/* Check that the algorithm didn't overwrite things it shouldn't have */
if (req->cryptlen != (enc ? vec->plen : vec->clen) ||
@@ -1385,6 +1397,21 @@ static int test_aead_vec_cfg(const char *driver, int enc,
return -EINVAL;
}
+ /* Check for success or failure */
+ expected_error = vec->novrfy ? -EBADMSG : vec->crypt_error;
+ if (err) {
+ if (err == expected_error)
+ return 0;
+ pr_err("alg: aead: %s %s failed on test vector %u; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_num, expected_error, err, cfg->name);
+ return err;
+ }
+ if (expected_error) {
+ pr_err("alg: aead: %s %s unexpectedly succeeded on test vector %u; expected_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_num, expected_error, cfg->name);
+ return -EINVAL;
+ }
+
/* Check for the correct output (ciphertext or plaintext) */
err = verify_correct_output(&tsgls->dst, enc ? vec->ctext : vec->ptext,
enc ? vec->clen : vec->plen,
@@ -1550,13 +1577,20 @@ static int test_cipher(struct crypto_cipher *tfm, int enc,
ret = crypto_cipher_setkey(tfm, template[i].key,
template[i].klen);
- if (template[i].fail == !ret) {
- printk(KERN_ERR "alg: cipher: setkey failed "
- "on test %d for %s: flags=%x\n", j,
- algo, crypto_cipher_get_flags(tfm));
+ if (ret) {
+ if (ret == template[i].setkey_error)
+ continue;
+ pr_err("alg: cipher: %s setkey failed on test vector %u; expected_error=%d, actual_error=%d, flags=%#x\n",
+ algo, j, template[i].setkey_error, ret,
+ crypto_cipher_get_flags(tfm));
goto out;
- } else if (ret)
- continue;
+ }
+ if (template[i].setkey_error) {
+ pr_err("alg: cipher: %s setkey unexpectedly succeeded on test vector %u; expected_error=%d\n",
+ algo, j, template[i].setkey_error);
+ ret = -EINVAL;
+ goto out;
+ }
for (k = 0; k < template[i].len;
k += crypto_cipher_blocksize(tfm)) {
@@ -1614,15 +1648,16 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
err = crypto_skcipher_setkey(tfm, vec->key, vec->klen);
if (err) {
- if (vec->fail) /* expectedly failed to set key? */
+ if (err == vec->setkey_error)
return 0;
- pr_err("alg: skcipher: %s setkey failed with err %d on test vector %u; flags=%#x\n",
- driver, err, vec_num, crypto_skcipher_get_flags(tfm));
+ pr_err("alg: skcipher: %s setkey failed on test vector %u; expected_error=%d, actual_error=%d, flags=%#x\n",
+ driver, vec_num, vec->setkey_error, err,
+ crypto_skcipher_get_flags(tfm));
return err;
}
- if (vec->fail) {
- pr_err("alg: skcipher: %s setkey unexpectedly succeeded on test vector %u\n",
- driver, vec_num);
+ if (vec->setkey_error) {
+ pr_err("alg: skcipher: %s setkey unexpectedly succeeded on test vector %u; expected_error=%d\n",
+ driver, vec_num, vec->setkey_error);
return -EINVAL;
}
@@ -1667,11 +1702,6 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
if (cfg->nosimd)
crypto_reenable_simd_for_test();
err = crypto_wait_req(err, &wait);
- if (err) {
- pr_err("alg: skcipher: %s %s failed with err %d on test vector %u, cfg=\"%s\"\n",
- driver, op, err, vec_num, cfg->name);
- return err;
- }
/* Check that the algorithm didn't overwrite things it shouldn't have */
if (req->cryptlen != vec->len ||
@@ -1714,6 +1744,20 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
return -EINVAL;
}
+ /* Check for success or failure */
+ if (err) {
+ if (err == vec->crypt_error)
+ return 0;
+ pr_err("alg: skcipher: %s %s failed on test vector %u; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_num, vec->crypt_error, err, cfg->name);
+ return err;
+ }
+ if (vec->crypt_error) {
+ pr_err("alg: skcipher: %s %s unexpectedly succeeded on test vector %u; expected_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_num, vec->crypt_error, cfg->name);
+ return -EINVAL;
+ }
+
/* Check for the correct output (ciphertext or plaintext) */
err = verify_correct_output(&tsgls->dst, enc ? vec->ctext : vec->ptext,
vec->len, 0, true);
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index d18a37629f053..beb9bd79fe1fa 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -34,6 +34,8 @@
* @digest: Pointer to expected digest
* @psize: Length of source data in bytes
* @ksize: Length of @key in bytes (0 if no key)
+ * @setkey_error: Expected error from setkey()
+ * @digest_error: Expected error from digest()
*/
struct hash_testvec {
const char *key;
@@ -41,6 +43,8 @@ struct hash_testvec {
const char *digest;
unsigned short psize;
unsigned short ksize;
+ int setkey_error;
+ int digest_error;
};
/*
@@ -52,12 +56,13 @@ struct hash_testvec {
* @ptext: Pointer to plaintext
* @ctext: Pointer to ciphertext
* @len: Length of @ptext and @ctext in bytes
- * @fail: If set to one, the test need to fail
* @wk: Does the test need CRYPTO_TFM_REQ_FORBID_WEAK_KEYS?
* ( e.g. test needs to fail due to a weak key )
* @fips_skip: Skip the test vector in FIPS mode
* @generates_iv: Encryption should ignore the given IV, and output @iv_out.
* Decryption takes @iv_out. Needed for AES Keywrap ("kw(aes)").
+ * @setkey_error: Expected error from setkey()
+ * @crypt_error: Expected error from encrypt() and decrypt()
*/
struct cipher_testvec {
const char *key;
@@ -65,12 +70,13 @@ struct cipher_testvec {
const char *iv_out;
const char *ptext;
const char *ctext;
- bool fail;
unsigned char wk; /* weak key flag */
unsigned char klen;
unsigned short len;
bool fips_skip;
bool generates_iv;
+ int setkey_error;
+ int crypt_error;
};
/*
@@ -82,7 +88,6 @@ struct cipher_testvec {
* @ctext: Pointer to the full authenticated ciphertext. For AEADs that
* produce a separate "ciphertext" and "authentication tag", these
* two parts are concatenated: ciphertext || tag.
- * @fail: setkey() failure expected?
* @novrfy: Decryption verification failure expected?
* @wk: Does the test need CRYPTO_TFM_REQ_FORBID_WEAK_KEYS?
* (e.g. setkey() needs to fail due to a weak key)
@@ -90,6 +95,9 @@ struct cipher_testvec {
* @plen: Length of @ptext in bytes
* @alen: Length of @assoc in bytes
* @clen: Length of @ctext in bytes
+ * @setkey_error: Expected error from setkey()
+ * @setauthsize_error: Expected error from setauthsize()
+ * @crypt_error: Expected error from encrypt() and decrypt()
*/
struct aead_testvec {
const char *key;
@@ -97,13 +105,15 @@ struct aead_testvec {
const char *ptext;
const char *assoc;
const char *ctext;
- bool fail;
unsigned char novrfy;
unsigned char wk;
unsigned char klen;
unsigned short plen;
unsigned short clen;
unsigned short alen;
+ int setkey_error;
+ int setauthsize_error;
+ int crypt_error;
};
struct cprng_testvec {
@@ -7084,7 +7094,7 @@ static const struct cipher_testvec des_tv_template[] = {
"\xb4\x99\x26\xf7\x1f\xe1\xd4\x90",
.len = 24,
}, { /* Weak key */
- .fail = true,
+ .setkey_error = -EINVAL,
.wk = 1,
.key = "\x01\x01\x01\x01\x01\x01\x01\x01",
.klen = 8,
--
2.21.0
^ permalink raw reply related [flat|nested] 16+ messages in thread* [PATCH v2 2/7] crypto: testmgr - identify test vectors by name rather than number
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
2019-04-12 4:57 ` [PATCH v2 1/7] crypto: testmgr - expand ability to test for errors Eric Biggers
@ 2019-04-12 4:57 ` Eric Biggers
2019-04-12 4:57 ` [PATCH v2 3/7] crypto: testmgr - add helpers for fuzzing against generic implementation Eric Biggers
` (7 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Eric Biggers @ 2019-04-12 4:57 UTC (permalink / raw)
To: linux-crypto, Herbert Xu
From: Eric Biggers <ebiggers@google.com>
In preparation for fuzz testing algorithms against their generic
implementation, make error messages in testmgr identify test vectors by
name rather than index. Built-in test vectors are simply "named" by
their index in testmgr.h, as before. But (in later patches) generated
test vectors will be given more descriptive names to help developers
debug problems detected with them.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
crypto/testmgr.c | 183 +++++++++++++++++++++++++----------------------
1 file changed, 96 insertions(+), 87 deletions(-)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 755f0725b5279..0e7548fb183e4 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -928,17 +928,17 @@ static int do_ahash_op(int (*op)(struct ahash_request *req),
static int check_nonfinal_hash_op(const char *op, int err,
u8 *result, unsigned int digestsize,
- const char *driver, unsigned int vec_num,
+ const char *driver, const char *vec_name,
const struct testvec_config *cfg)
{
if (err) {
- pr_err("alg: hash: %s %s() failed with err %d on test vector %u, cfg=\"%s\"\n",
- driver, op, err, vec_num, cfg->name);
+ pr_err("alg: hash: %s %s() failed with err %d on test vector %s, cfg=\"%s\"\n",
+ driver, op, err, vec_name, cfg->name);
return err;
}
if (!testmgr_is_poison(result, digestsize)) {
- pr_err("alg: hash: %s %s() used result buffer on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: hash: %s %s() used result buffer on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return -EINVAL;
}
return 0;
@@ -946,7 +946,7 @@ static int check_nonfinal_hash_op(const char *op, int err,
static int test_hash_vec_cfg(const char *driver,
const struct hash_testvec *vec,
- unsigned int vec_num,
+ const char *vec_name,
const struct testvec_config *cfg,
struct ahash_request *req,
struct test_sglist *tsgl,
@@ -973,14 +973,14 @@ static int test_hash_vec_cfg(const char *driver,
if (err) {
if (err == vec->setkey_error)
return 0;
- pr_err("alg: hash: %s setkey failed on test vector %u; expected_error=%d, actual_error=%d, flags=%#x\n",
- driver, vec_num, vec->setkey_error, err,
+ pr_err("alg: hash: %s setkey failed on test vector %s; expected_error=%d, actual_error=%d, flags=%#x\n",
+ driver, vec_name, vec->setkey_error, err,
crypto_ahash_get_flags(tfm));
return err;
}
if (vec->setkey_error) {
- pr_err("alg: hash: %s setkey unexpectedly succeeded on test vector %u; expected_error=%d\n",
- driver, vec_num, vec->setkey_error);
+ pr_err("alg: hash: %s setkey unexpectedly succeeded on test vector %s; expected_error=%d\n",
+ driver, vec_name, vec->setkey_error);
return -EINVAL;
}
}
@@ -992,8 +992,8 @@ static int test_hash_vec_cfg(const char *driver,
err = build_test_sglist(tsgl, cfg->src_divs, alignmask, vec->psize,
&input, divs);
if (err) {
- pr_err("alg: hash: %s: error preparing scatterlist for test vector %u, cfg=\"%s\"\n",
- driver, vec_num, cfg->name);
+ pr_err("alg: hash: %s: error preparing scatterlist for test vector %s, cfg=\"%s\"\n",
+ driver, vec_name, cfg->name);
return err;
}
@@ -1012,14 +1012,14 @@ static int test_hash_vec_cfg(const char *driver,
if (err) {
if (err == vec->digest_error)
return 0;
- pr_err("alg: hash: %s digest() failed on test vector %u; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
- driver, vec_num, vec->digest_error, err,
+ pr_err("alg: hash: %s digest() failed on test vector %s; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
+ driver, vec_name, vec->digest_error, err,
cfg->name);
return err;
}
if (vec->digest_error) {
- pr_err("alg: hash: %s digest() unexpectedly succeeded on test vector %u; expected_error=%d, cfg=\"%s\"\n",
- driver, vec_num, vec->digest_error, cfg->name);
+ pr_err("alg: hash: %s digest() unexpectedly succeeded on test vector %s; expected_error=%d, cfg=\"%s\"\n",
+ driver, vec_name, vec->digest_error, cfg->name);
return -EINVAL;
}
goto result_ready;
@@ -1031,7 +1031,7 @@ static int test_hash_vec_cfg(const char *driver,
ahash_request_set_crypt(req, NULL, result, 0);
err = do_ahash_op(crypto_ahash_init, req, &wait, cfg->nosimd);
err = check_nonfinal_hash_op("init", err, result, digestsize,
- driver, vec_num, cfg);
+ driver, vec_name, cfg);
if (err)
return err;
@@ -1049,7 +1049,7 @@ static int test_hash_vec_cfg(const char *driver,
divs[i]->nosimd);
err = check_nonfinal_hash_op("update", err,
result, digestsize,
- driver, vec_num, cfg);
+ driver, vec_name, cfg);
if (err)
return err;
pending_sgl = NULL;
@@ -1062,13 +1062,13 @@ static int test_hash_vec_cfg(const char *driver,
err = crypto_ahash_export(req, hashstate);
err = check_nonfinal_hash_op("export", err,
result, digestsize,
- driver, vec_num, cfg);
+ driver, vec_name, cfg);
if (err)
return err;
if (!testmgr_is_poison(hashstate + statesize,
TESTMGR_POISON_LEN)) {
- pr_err("alg: hash: %s export() overran state buffer on test vector %u, cfg=\"%s\"\n",
- driver, vec_num, cfg->name);
+ pr_err("alg: hash: %s export() overran state buffer on test vector %s, cfg=\"%s\"\n",
+ driver, vec_name, cfg->name);
return -EOVERFLOW;
}
@@ -1076,7 +1076,7 @@ static int test_hash_vec_cfg(const char *driver,
err = crypto_ahash_import(req, hashstate);
err = check_nonfinal_hash_op("import", err,
result, digestsize,
- driver, vec_num, cfg);
+ driver, vec_name, cfg);
if (err)
return err;
}
@@ -1091,21 +1091,21 @@ static int test_hash_vec_cfg(const char *driver,
/* finish with update() and final() */
err = do_ahash_op(crypto_ahash_update, req, &wait, cfg->nosimd);
err = check_nonfinal_hash_op("update", err, result, digestsize,
- driver, vec_num, cfg);
+ driver, vec_name, cfg);
if (err)
return err;
err = do_ahash_op(crypto_ahash_final, req, &wait, cfg->nosimd);
if (err) {
- pr_err("alg: hash: %s final() failed with err %d on test vector %u, cfg=\"%s\"\n",
- driver, err, vec_num, cfg->name);
+ pr_err("alg: hash: %s final() failed with err %d on test vector %s, cfg=\"%s\"\n",
+ driver, err, vec_name, cfg->name);
return err;
}
} else {
/* finish with finup() */
err = do_ahash_op(crypto_ahash_finup, req, &wait, cfg->nosimd);
if (err) {
- pr_err("alg: hash: %s finup() failed with err %d on test vector %u, cfg=\"%s\"\n",
- driver, err, vec_num, cfg->name);
+ pr_err("alg: hash: %s finup() failed with err %d on test vector %s, cfg=\"%s\"\n",
+ driver, err, vec_name, cfg->name);
return err;
}
}
@@ -1113,13 +1113,13 @@ static int test_hash_vec_cfg(const char *driver,
result_ready:
/* Check that the algorithm produced the correct digest */
if (memcmp(result, vec->digest, digestsize) != 0) {
- pr_err("alg: hash: %s test failed (wrong result) on test vector %u, cfg=\"%s\"\n",
- driver, vec_num, cfg->name);
+ pr_err("alg: hash: %s test failed (wrong result) on test vector %s, cfg=\"%s\"\n",
+ driver, vec_name, cfg->name);
return -EINVAL;
}
if (!testmgr_is_poison(&result[digestsize], TESTMGR_POISON_LEN)) {
- pr_err("alg: hash: %s overran result buffer on test vector %u, cfg=\"%s\"\n",
- driver, vec_num, cfg->name);
+ pr_err("alg: hash: %s overran result buffer on test vector %s, cfg=\"%s\"\n",
+ driver, vec_name, cfg->name);
return -EOVERFLOW;
}
@@ -1130,11 +1130,14 @@ static int test_hash_vec(const char *driver, const struct hash_testvec *vec,
unsigned int vec_num, struct ahash_request *req,
struct test_sglist *tsgl, u8 *hashstate)
{
+ char vec_name[16];
unsigned int i;
int err;
+ sprintf(vec_name, "%u", vec_num);
+
for (i = 0; i < ARRAY_SIZE(default_hash_testvec_configs); i++) {
- err = test_hash_vec_cfg(driver, vec, vec_num,
+ err = test_hash_vec_cfg(driver, vec, vec_name,
&default_hash_testvec_configs[i],
req, tsgl, hashstate);
if (err)
@@ -1149,7 +1152,7 @@ static int test_hash_vec(const char *driver, const struct hash_testvec *vec,
for (i = 0; i < fuzz_iterations; i++) {
generate_random_testvec_config(&cfg, cfgname,
sizeof(cfgname));
- err = test_hash_vec_cfg(driver, vec, vec_num, &cfg,
+ err = test_hash_vec_cfg(driver, vec, vec_name, &cfg,
req, tsgl, hashstate);
if (err)
return err;
@@ -1261,7 +1264,7 @@ static int alg_test_hash(const struct alg_test_desc *desc, const char *driver,
static int test_aead_vec_cfg(const char *driver, int enc,
const struct aead_testvec *vec,
- unsigned int vec_num,
+ const char *vec_name,
const struct testvec_config *cfg,
struct aead_request *req,
struct cipher_test_sglists *tsgls)
@@ -1288,27 +1291,27 @@ static int test_aead_vec_cfg(const char *driver, int enc,
crypto_aead_clear_flags(tfm, CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
err = crypto_aead_setkey(tfm, vec->key, vec->klen);
if (err && err != vec->setkey_error) {
- pr_err("alg: aead: %s setkey failed on test vector %u; expected_error=%d, actual_error=%d, flags=%#x\n",
- driver, vec_num, vec->setkey_error, err,
+ pr_err("alg: aead: %s setkey failed on test vector %s; expected_error=%d, actual_error=%d, flags=%#x\n",
+ driver, vec_name, vec->setkey_error, err,
crypto_aead_get_flags(tfm));
return err;
}
if (!err && vec->setkey_error) {
- pr_err("alg: aead: %s setkey unexpectedly succeeded on test vector %u; expected_error=%d\n",
- driver, vec_num, vec->setkey_error);
+ pr_err("alg: aead: %s setkey unexpectedly succeeded on test vector %s; expected_error=%d\n",
+ driver, vec_name, vec->setkey_error);
return -EINVAL;
}
/* Set the authentication tag size */
err = crypto_aead_setauthsize(tfm, authsize);
if (err && err != vec->setauthsize_error) {
- pr_err("alg: aead: %s setauthsize failed on test vector %u; expected_error=%d, actual_error=%d\n",
- driver, vec_num, vec->setauthsize_error, err);
+ pr_err("alg: aead: %s setauthsize failed on test vector %s; expected_error=%d, actual_error=%d\n",
+ driver, vec_name, vec->setauthsize_error, err);
return err;
}
if (!err && vec->setauthsize_error) {
- pr_err("alg: aead: %s setauthsize unexpectedly succeeded on test vector %u; expected_error=%d\n",
- driver, vec_num, vec->setauthsize_error);
+ pr_err("alg: aead: %s setauthsize unexpectedly succeeded on test vector %s; expected_error=%d\n",
+ driver, vec_name, vec->setauthsize_error);
return -EINVAL;
}
@@ -1335,8 +1338,8 @@ static int test_aead_vec_cfg(const char *driver, int enc,
vec->plen),
input, 2);
if (err) {
- pr_err("alg: aead: %s %s: error preparing scatterlists for test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: aead: %s %s: error preparing scatterlists for test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return err;
}
@@ -1363,8 +1366,8 @@ static int test_aead_vec_cfg(const char *driver, int enc,
req->base.complete != crypto_req_done ||
req->base.flags != req_flags ||
req->base.data != &wait) {
- pr_err("alg: aead: %s %s corrupted request struct on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: aead: %s %s corrupted request struct on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
if (req->cryptlen != (enc ? vec->plen : vec->clen))
pr_err("alg: aead: changed 'req->cryptlen'\n");
if (req->assoclen != vec->alen)
@@ -1386,14 +1389,14 @@ static int test_aead_vec_cfg(const char *driver, int enc,
return -EINVAL;
}
if (is_test_sglist_corrupted(&tsgls->src)) {
- pr_err("alg: aead: %s %s corrupted src sgl on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: aead: %s %s corrupted src sgl on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return -EINVAL;
}
if (tsgls->dst.sgl_ptr != tsgls->src.sgl &&
is_test_sglist_corrupted(&tsgls->dst)) {
- pr_err("alg: aead: %s %s corrupted dst sgl on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: aead: %s %s corrupted dst sgl on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return -EINVAL;
}
@@ -1402,13 +1405,13 @@ static int test_aead_vec_cfg(const char *driver, int enc,
if (err) {
if (err == expected_error)
return 0;
- pr_err("alg: aead: %s %s failed on test vector %u; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
- driver, op, vec_num, expected_error, err, cfg->name);
+ pr_err("alg: aead: %s %s failed on test vector %s; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_name, expected_error, err, cfg->name);
return err;
}
if (expected_error) {
- pr_err("alg: aead: %s %s unexpectedly succeeded on test vector %u; expected_error=%d, cfg=\"%s\"\n",
- driver, op, vec_num, expected_error, cfg->name);
+ pr_err("alg: aead: %s %s unexpectedly succeeded on test vector %s; expected_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_name, expected_error, cfg->name);
return -EINVAL;
}
@@ -1417,13 +1420,13 @@ static int test_aead_vec_cfg(const char *driver, int enc,
enc ? vec->clen : vec->plen,
vec->alen, enc || !cfg->inplace);
if (err == -EOVERFLOW) {
- pr_err("alg: aead: %s %s overran dst buffer on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: aead: %s %s overran dst buffer on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return err;
}
if (err) {
- pr_err("alg: aead: %s %s test failed (wrong result) on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: aead: %s %s test failed (wrong result) on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return err;
}
@@ -1435,14 +1438,17 @@ static int test_aead_vec(const char *driver, int enc,
struct aead_request *req,
struct cipher_test_sglists *tsgls)
{
+ char vec_name[16];
unsigned int i;
int err;
if (enc && vec->novrfy)
return 0;
+ sprintf(vec_name, "%u", vec_num);
+
for (i = 0; i < ARRAY_SIZE(default_cipher_testvec_configs); i++) {
- err = test_aead_vec_cfg(driver, enc, vec, vec_num,
+ err = test_aead_vec_cfg(driver, enc, vec, vec_name,
&default_cipher_testvec_configs[i],
req, tsgls);
if (err)
@@ -1457,7 +1463,7 @@ static int test_aead_vec(const char *driver, int enc,
for (i = 0; i < fuzz_iterations; i++) {
generate_random_testvec_config(&cfg, cfgname,
sizeof(cfgname));
- err = test_aead_vec_cfg(driver, enc, vec, vec_num,
+ err = test_aead_vec_cfg(driver, enc, vec, vec_name,
&cfg, req, tsgls);
if (err)
return err;
@@ -1622,7 +1628,7 @@ static int test_cipher(struct crypto_cipher *tfm, int enc,
static int test_skcipher_vec_cfg(const char *driver, int enc,
const struct cipher_testvec *vec,
- unsigned int vec_num,
+ const char *vec_name,
const struct testvec_config *cfg,
struct skcipher_request *req,
struct cipher_test_sglists *tsgls)
@@ -1650,14 +1656,14 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
if (err) {
if (err == vec->setkey_error)
return 0;
- pr_err("alg: skcipher: %s setkey failed on test vector %u; expected_error=%d, actual_error=%d, flags=%#x\n",
- driver, vec_num, vec->setkey_error, err,
+ pr_err("alg: skcipher: %s setkey failed on test vector %s; expected_error=%d, actual_error=%d, flags=%#x\n",
+ driver, vec_name, vec->setkey_error, err,
crypto_skcipher_get_flags(tfm));
return err;
}
if (vec->setkey_error) {
- pr_err("alg: skcipher: %s setkey unexpectedly succeeded on test vector %u; expected_error=%d\n",
- driver, vec_num, vec->setkey_error);
+ pr_err("alg: skcipher: %s setkey unexpectedly succeeded on test vector %s; expected_error=%d\n",
+ driver, vec_name, vec->setkey_error);
return -EINVAL;
}
@@ -1673,8 +1679,8 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
memset(iv, 0, ivsize);
} else {
if (vec->generates_iv) {
- pr_err("alg: skcipher: %s has ivsize=0 but test vector %u generates IV!\n",
- driver, vec_num);
+ pr_err("alg: skcipher: %s has ivsize=0 but test vector %s generates IV!\n",
+ driver, vec_name);
return -EINVAL;
}
iv = NULL;
@@ -1686,8 +1692,8 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
err = build_cipher_test_sglists(tsgls, cfg, alignmask,
vec->len, vec->len, &input, 1);
if (err) {
- pr_err("alg: skcipher: %s %s: error preparing scatterlists for test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: skcipher: %s %s: error preparing scatterlists for test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return err;
}
@@ -1712,8 +1718,8 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
req->base.complete != crypto_req_done ||
req->base.flags != req_flags ||
req->base.data != &wait) {
- pr_err("alg: skcipher: %s %s corrupted request struct on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: skcipher: %s %s corrupted request struct on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
if (req->cryptlen != vec->len)
pr_err("alg: skcipher: changed 'req->cryptlen'\n");
if (req->iv != iv)
@@ -1733,14 +1739,14 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
return -EINVAL;
}
if (is_test_sglist_corrupted(&tsgls->src)) {
- pr_err("alg: skcipher: %s %s corrupted src sgl on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: skcipher: %s %s corrupted src sgl on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return -EINVAL;
}
if (tsgls->dst.sgl_ptr != tsgls->src.sgl &&
is_test_sglist_corrupted(&tsgls->dst)) {
- pr_err("alg: skcipher: %s %s corrupted dst sgl on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: skcipher: %s %s corrupted dst sgl on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return -EINVAL;
}
@@ -1748,13 +1754,13 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
if (err) {
if (err == vec->crypt_error)
return 0;
- pr_err("alg: skcipher: %s %s failed on test vector %u; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
- driver, op, vec_num, vec->crypt_error, err, cfg->name);
+ pr_err("alg: skcipher: %s %s failed on test vector %s; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_name, vec->crypt_error, err, cfg->name);
return err;
}
if (vec->crypt_error) {
- pr_err("alg: skcipher: %s %s unexpectedly succeeded on test vector %u; expected_error=%d, cfg=\"%s\"\n",
- driver, op, vec_num, vec->crypt_error, cfg->name);
+ pr_err("alg: skcipher: %s %s unexpectedly succeeded on test vector %s; expected_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_name, vec->crypt_error, cfg->name);
return -EINVAL;
}
@@ -1762,20 +1768,20 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
err = verify_correct_output(&tsgls->dst, enc ? vec->ctext : vec->ptext,
vec->len, 0, true);
if (err == -EOVERFLOW) {
- pr_err("alg: skcipher: %s %s overran dst buffer on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: skcipher: %s %s overran dst buffer on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return err;
}
if (err) {
- pr_err("alg: skcipher: %s %s test failed (wrong result) on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: skcipher: %s %s test failed (wrong result) on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
return err;
}
/* If applicable, check that the algorithm generated the correct IV */
if (vec->iv_out && memcmp(iv, vec->iv_out, ivsize) != 0) {
- pr_err("alg: skcipher: %s %s test failed (wrong output IV) on test vector %u, cfg=\"%s\"\n",
- driver, op, vec_num, cfg->name);
+ pr_err("alg: skcipher: %s %s test failed (wrong output IV) on test vector %s, cfg=\"%s\"\n",
+ driver, op, vec_name, cfg->name);
hexdump(iv, ivsize);
return -EINVAL;
}
@@ -1789,14 +1795,17 @@ static int test_skcipher_vec(const char *driver, int enc,
struct skcipher_request *req,
struct cipher_test_sglists *tsgls)
{
+ char vec_name[16];
unsigned int i;
int err;
if (fips_enabled && vec->fips_skip)
return 0;
+ sprintf(vec_name, "%u", vec_num);
+
for (i = 0; i < ARRAY_SIZE(default_cipher_testvec_configs); i++) {
- err = test_skcipher_vec_cfg(driver, enc, vec, vec_num,
+ err = test_skcipher_vec_cfg(driver, enc, vec, vec_name,
&default_cipher_testvec_configs[i],
req, tsgls);
if (err)
@@ -1811,7 +1820,7 @@ static int test_skcipher_vec(const char *driver, int enc,
for (i = 0; i < fuzz_iterations; i++) {
generate_random_testvec_config(&cfg, cfgname,
sizeof(cfgname));
- err = test_skcipher_vec_cfg(driver, enc, vec, vec_num,
+ err = test_skcipher_vec_cfg(driver, enc, vec, vec_name,
&cfg, req, tsgls);
if (err)
return err;
--
2.21.0
^ permalink raw reply related [flat|nested] 16+ messages in thread* [PATCH v2 3/7] crypto: testmgr - add helpers for fuzzing against generic implementation
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
2019-04-12 4:57 ` [PATCH v2 1/7] crypto: testmgr - expand ability to test for errors Eric Biggers
2019-04-12 4:57 ` [PATCH v2 2/7] crypto: testmgr - identify test vectors by name rather than number Eric Biggers
@ 2019-04-12 4:57 ` Eric Biggers
2019-04-12 4:57 ` [PATCH v2 4/7] crypto: testmgr - fuzz hashes against their " Eric Biggers
` (6 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Eric Biggers @ 2019-04-12 4:57 UTC (permalink / raw)
To: linux-crypto, Herbert Xu
From: Eric Biggers <ebiggers@google.com>
Add some helper functions in preparation for fuzz testing algorithms
against their generic implementation.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
crypto/testmgr.c | 128 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 128 insertions(+)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 0e7548fb183e4..27efa3e8824ca 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -128,6 +128,7 @@ struct kpp_test_suite {
struct alg_test_desc {
const char *alg;
+ const char *generic_driver;
int (*test)(const struct alg_test_desc *desc, const char *driver,
u32 type, u32 mask);
int fips_allowed; /* set if alg is allowed in fips mode */
@@ -745,6 +746,91 @@ static int build_cipher_test_sglists(struct cipher_test_sglists *tsgls,
}
#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
+
+/* Generate a random length in range [0, max_len], but prefer smaller values */
+static unsigned int generate_random_length(unsigned int max_len)
+{
+ unsigned int len = prandom_u32() % (max_len + 1);
+
+ switch (prandom_u32() % 4) {
+ case 0:
+ return len % 64;
+ case 1:
+ return len % 256;
+ case 2:
+ return len % 1024;
+ default:
+ return len;
+ }
+}
+
+/* Sometimes make some random changes to the given data buffer */
+static void mutate_buffer(u8 *buf, size_t count)
+{
+ size_t num_flips;
+ size_t i;
+ size_t pos;
+
+ /* Sometimes flip some bits */
+ if (prandom_u32() % 4 == 0) {
+ num_flips = min_t(size_t, 1 << (prandom_u32() % 8), count * 8);
+ for (i = 0; i < num_flips; i++) {
+ pos = prandom_u32() % (count * 8);
+ buf[pos / 8] ^= 1 << (pos % 8);
+ }
+ }
+
+ /* Sometimes flip some bytes */
+ if (prandom_u32() % 4 == 0) {
+ num_flips = min_t(size_t, 1 << (prandom_u32() % 8), count);
+ for (i = 0; i < num_flips; i++)
+ buf[prandom_u32() % count] ^= 0xff;
+ }
+}
+
+/* Randomly generate 'count' bytes, but sometimes make them "interesting" */
+static void generate_random_bytes(u8 *buf, size_t count)
+{
+ u8 b;
+ u8 increment;
+ size_t i;
+
+ if (count == 0)
+ return;
+
+ switch (prandom_u32() % 8) { /* Choose a generation strategy */
+ case 0:
+ case 1:
+ /* All the same byte, plus optional mutations */
+ switch (prandom_u32() % 4) {
+ case 0:
+ b = 0x00;
+ break;
+ case 1:
+ b = 0xff;
+ break;
+ default:
+ b = (u8)prandom_u32();
+ break;
+ }
+ memset(buf, b, count);
+ mutate_buffer(buf, count);
+ break;
+ case 2:
+ /* Ascending or descending bytes, plus optional mutations */
+ increment = (u8)prandom_u32();
+ b = (u8)prandom_u32();
+ for (i = 0; i < count; i++, b += increment)
+ buf[i] = b;
+ mutate_buffer(buf, count);
+ break;
+ default:
+ /* Fully random bytes */
+ for (i = 0; i < count; i++)
+ buf[i] = (u8)prandom_u32();
+ }
+}
+
static char *generate_random_sgl_divisions(struct test_sg_division *divs,
size_t max_divs, char *p, char *end,
bool gen_flushes, u32 req_flags)
@@ -899,6 +985,48 @@ static void crypto_reenable_simd_for_test(void)
__this_cpu_write(crypto_simd_disabled_for_test, false);
preempt_enable();
}
+
+/*
+ * Given an algorithm name, build the name of the generic implementation of that
+ * algorithm, assuming the usual naming convention. Specifically, this appends
+ * "-generic" to every part of the name that is not a template name. Examples:
+ *
+ * aes => aes-generic
+ * cbc(aes) => cbc(aes-generic)
+ * cts(cbc(aes)) => cts(cbc(aes-generic))
+ * rfc7539(chacha20,poly1305) => rfc7539(chacha20-generic,poly1305-generic)
+ *
+ * Return: 0 on success, or -ENAMETOOLONG if the generic name would be too long
+ */
+static int build_generic_driver_name(const char *algname,
+ char driver_name[CRYPTO_MAX_ALG_NAME])
+{
+ const char *in = algname;
+ char *out = driver_name;
+ size_t len = strlen(algname);
+
+ if (len >= CRYPTO_MAX_ALG_NAME)
+ goto too_long;
+ do {
+ const char *in_saved = in;
+
+ while (*in && *in != '(' && *in != ')' && *in != ',')
+ *out++ = *in++;
+ if (*in != '(' && in > in_saved) {
+ len += 8;
+ if (len >= CRYPTO_MAX_ALG_NAME)
+ goto too_long;
+ memcpy(out, "-generic", 8);
+ out += 8;
+ }
+ } while ((*out++ = *in++) != '\0');
+ return 0;
+
+too_long:
+ pr_err("alg: generic driver name for \"%s\" would be too long\n",
+ algname);
+ return -ENAMETOOLONG;
+}
#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
static void crypto_disable_simd_for_test(void)
{
--
2.21.0
^ permalink raw reply related [flat|nested] 16+ messages in thread* [PATCH v2 4/7] crypto: testmgr - fuzz hashes against their generic implementation
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
` (2 preceding siblings ...)
2019-04-12 4:57 ` [PATCH v2 3/7] crypto: testmgr - add helpers for fuzzing against generic implementation Eric Biggers
@ 2019-04-12 4:57 ` Eric Biggers
2019-04-12 4:57 ` [PATCH v2 5/7] crypto: testmgr - fuzz skciphers " Eric Biggers
` (5 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Eric Biggers @ 2019-04-12 4:57 UTC (permalink / raw)
To: linux-crypto, Herbert Xu
From: Eric Biggers <ebiggers@google.com>
When the extra crypto self-tests are enabled, test each hash algorithm
against its generic implementation when one is available. This
involves: checking the algorithm properties for consistency, then
randomly generating test vectors using the generic implementation and
running them against the implementation under test. Both good and bad
inputs are tested.
This has already detected a bug in the x86 implementation of poly1305,
bugs in crct10dif, and an inconsistency in cbcmac.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
crypto/testmgr.c | 174 +++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 170 insertions(+), 4 deletions(-)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 27efa3e8824ca..c66101ea32b8d 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1290,9 +1290,169 @@ static int test_hash_vec(const char *driver, const struct hash_testvec *vec,
return 0;
}
+#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
+/*
+ * Generate a hash test vector from the given implementation.
+ * Assumes the buffers in 'vec' were already allocated.
+ */
+static void generate_random_hash_testvec(struct crypto_shash *tfm,
+ struct hash_testvec *vec,
+ unsigned int maxkeysize,
+ unsigned int maxdatasize,
+ char *name, size_t max_namelen)
+{
+ SHASH_DESC_ON_STACK(desc, tfm);
+
+ /* Data */
+ vec->psize = generate_random_length(maxdatasize);
+ generate_random_bytes((u8 *)vec->plaintext, vec->psize);
+
+ /*
+ * Key: length in range [1, maxkeysize], but usually choose maxkeysize.
+ * If algorithm is unkeyed, then maxkeysize == 0 and set ksize = 0.
+ */
+ vec->setkey_error = 0;
+ vec->ksize = 0;
+ if (maxkeysize) {
+ vec->ksize = maxkeysize;
+ if (prandom_u32() % 4 == 0)
+ vec->ksize = 1 + (prandom_u32() % maxkeysize);
+ generate_random_bytes((u8 *)vec->key, vec->ksize);
+
+ vec->setkey_error = crypto_shash_setkey(tfm, vec->key,
+ vec->ksize);
+ /* If the key couldn't be set, no need to continue to digest. */
+ if (vec->setkey_error)
+ goto done;
+ }
+
+ /* Digest */
+ desc->tfm = tfm;
+ desc->flags = 0;
+ vec->digest_error = crypto_shash_digest(desc, vec->plaintext,
+ vec->psize, (u8 *)vec->digest);
+done:
+ snprintf(name, max_namelen, "\"random: psize=%u ksize=%u\"",
+ vec->psize, vec->ksize);
+}
+
+/*
+ * Test the hash algorithm represented by @req against the corresponding generic
+ * implementation, if one is available.
+ */
+static int test_hash_vs_generic_impl(const char *driver,
+ const char *generic_driver,
+ unsigned int maxkeysize,
+ struct ahash_request *req,
+ struct test_sglist *tsgl,
+ u8 *hashstate)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ const unsigned int digestsize = crypto_ahash_digestsize(tfm);
+ const unsigned int blocksize = crypto_ahash_blocksize(tfm);
+ const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
+ const char *algname = crypto_hash_alg_common(tfm)->base.cra_name;
+ char _generic_driver[CRYPTO_MAX_ALG_NAME];
+ struct crypto_shash *generic_tfm = NULL;
+ unsigned int i;
+ struct hash_testvec vec = { 0 };
+ char vec_name[64];
+ struct testvec_config cfg;
+ char cfgname[TESTVEC_CONFIG_NAMELEN];
+ int err;
+
+ if (noextratests)
+ return 0;
+
+ if (!generic_driver) { /* Use default naming convention? */
+ err = build_generic_driver_name(algname, _generic_driver);
+ if (err)
+ return err;
+ generic_driver = _generic_driver;
+ }
+
+ if (strcmp(generic_driver, driver) == 0) /* Already the generic impl? */
+ return 0;
+
+ generic_tfm = crypto_alloc_shash(generic_driver, 0, 0);
+ if (IS_ERR(generic_tfm)) {
+ err = PTR_ERR(generic_tfm);
+ if (err == -ENOENT) {
+ pr_warn("alg: hash: skipping comparison tests for %s because %s is unavailable\n",
+ driver, generic_driver);
+ return 0;
+ }
+ pr_err("alg: hash: error allocating %s (generic impl of %s): %d\n",
+ generic_driver, algname, err);
+ return err;
+ }
+
+ /* Check the algorithm properties for consistency. */
+
+ if (digestsize != crypto_shash_digestsize(generic_tfm)) {
+ pr_err("alg: hash: digestsize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, digestsize,
+ crypto_shash_digestsize(generic_tfm));
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (blocksize != crypto_shash_blocksize(generic_tfm)) {
+ pr_err("alg: hash: blocksize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, blocksize, crypto_shash_blocksize(generic_tfm));
+ err = -EINVAL;
+ goto out;
+ }
+
+ /*
+ * Now generate test vectors using the generic implementation, and test
+ * the other implementation against them.
+ */
+
+ vec.key = kmalloc(maxkeysize, GFP_KERNEL);
+ vec.plaintext = kmalloc(maxdatasize, GFP_KERNEL);
+ vec.digest = kmalloc(digestsize, GFP_KERNEL);
+ if (!vec.key || !vec.plaintext || !vec.digest) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < fuzz_iterations * 8; i++) {
+ generate_random_hash_testvec(generic_tfm, &vec,
+ maxkeysize, maxdatasize,
+ vec_name, sizeof(vec_name));
+ generate_random_testvec_config(&cfg, cfgname, sizeof(cfgname));
+
+ err = test_hash_vec_cfg(driver, &vec, vec_name, &cfg,
+ req, tsgl, hashstate);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ err = 0;
+out:
+ kfree(vec.key);
+ kfree(vec.plaintext);
+ kfree(vec.digest);
+ crypto_free_shash(generic_tfm);
+ return err;
+}
+#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
+static int test_hash_vs_generic_impl(const char *driver,
+ const char *generic_driver,
+ unsigned int maxkeysize,
+ struct ahash_request *req,
+ struct test_sglist *tsgl,
+ u8 *hashstate)
+{
+ return 0;
+}
+#endif /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
+
static int __alg_test_hash(const struct hash_testvec *vecs,
unsigned int num_vecs, const char *driver,
- u32 type, u32 mask)
+ u32 type, u32 mask,
+ const char *generic_driver, unsigned int maxkeysize)
{
struct crypto_ahash *tfm;
struct ahash_request *req = NULL;
@@ -1340,7 +1500,8 @@ static int __alg_test_hash(const struct hash_testvec *vecs,
if (err)
goto out;
}
- err = 0;
+ err = test_hash_vs_generic_impl(driver, generic_driver, maxkeysize, req,
+ tsgl, hashstate);
out:
kfree(hashstate);
if (tsgl) {
@@ -1358,6 +1519,7 @@ static int alg_test_hash(const struct alg_test_desc *desc, const char *driver,
const struct hash_testvec *template = desc->suite.hash.vecs;
unsigned int tcount = desc->suite.hash.count;
unsigned int nr_unkeyed, nr_keyed;
+ unsigned int maxkeysize = 0;
int err;
/*
@@ -1376,16 +1538,20 @@ static int alg_test_hash(const struct alg_test_desc *desc, const char *driver,
"unkeyed ones must come first\n", desc->alg);
return -EINVAL;
}
+ maxkeysize = max_t(unsigned int, maxkeysize,
+ template[nr_unkeyed + nr_keyed].ksize);
}
err = 0;
if (nr_unkeyed) {
- err = __alg_test_hash(template, nr_unkeyed, driver, type, mask);
+ err = __alg_test_hash(template, nr_unkeyed, driver, type, mask,
+ desc->generic_driver, maxkeysize);
template += nr_unkeyed;
}
if (!err && nr_keyed)
- err = __alg_test_hash(template, nr_keyed, driver, type, mask);
+ err = __alg_test_hash(template, nr_keyed, driver, type, mask,
+ desc->generic_driver, maxkeysize);
return err;
}
--
2.21.0
^ permalink raw reply related [flat|nested] 16+ messages in thread* [PATCH v2 5/7] crypto: testmgr - fuzz skciphers against their generic implementation
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
` (3 preceding siblings ...)
2019-04-12 4:57 ` [PATCH v2 4/7] crypto: testmgr - fuzz hashes against their " Eric Biggers
@ 2019-04-12 4:57 ` Eric Biggers
2019-04-12 4:57 ` [PATCH v2 6/7] crypto: testmgr - fuzz AEADs " Eric Biggers
` (4 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Eric Biggers @ 2019-04-12 4:57 UTC (permalink / raw)
To: linux-crypto, Herbert Xu
From: Eric Biggers <ebiggers@google.com>
When the extra crypto self-tests are enabled, test each skcipher
algorithm against its generic implementation when one is available.
This involves: checking the algorithm properties for consistency, then
randomly generating test vectors using the generic implementation and
running them against the implementation under test. Both good and bad
inputs are tested.
This has already detected a bug in the skcipher_walk API, a bug in the
LRW template, and an inconsistency in the cts implementations.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
crypto/testmgr.c | 197 +++++++++++++++++++++++++++++++++++++++++++++++
crypto/testmgr.h | 2 +-
2 files changed, 198 insertions(+), 1 deletion(-)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index c66101ea32b8d..7b9a7a90e9e25 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -2124,6 +2124,186 @@ static int test_skcipher_vec(const char *driver, int enc,
return 0;
}
+#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
+/*
+ * Generate a symmetric cipher test vector from the given implementation.
+ * Assumes the buffers in 'vec' were already allocated.
+ */
+static void generate_random_cipher_testvec(struct skcipher_request *req,
+ struct cipher_testvec *vec,
+ unsigned int maxdatasize,
+ char *name, size_t max_namelen)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const unsigned int maxkeysize = tfm->keysize;
+ const unsigned int ivsize = crypto_skcipher_ivsize(tfm);
+ struct scatterlist src, dst;
+ u8 iv[MAX_IVLEN];
+ DECLARE_CRYPTO_WAIT(wait);
+
+ /* Key: length in [0, maxkeysize], but usually choose maxkeysize */
+ vec->klen = maxkeysize;
+ if (prandom_u32() % 4 == 0)
+ vec->klen = prandom_u32() % (maxkeysize + 1);
+ generate_random_bytes((u8 *)vec->key, vec->klen);
+ vec->setkey_error = crypto_skcipher_setkey(tfm, vec->key, vec->klen);
+
+ /* IV */
+ generate_random_bytes((u8 *)vec->iv, ivsize);
+
+ /* Plaintext */
+ vec->len = generate_random_length(maxdatasize);
+ generate_random_bytes((u8 *)vec->ptext, vec->len);
+
+ /* If the key couldn't be set, no need to continue to encrypt. */
+ if (vec->setkey_error)
+ goto done;
+
+ /* Ciphertext */
+ sg_init_one(&src, vec->ptext, vec->len);
+ sg_init_one(&dst, vec->ctext, vec->len);
+ memcpy(iv, vec->iv, ivsize);
+ skcipher_request_set_callback(req, 0, crypto_req_done, &wait);
+ skcipher_request_set_crypt(req, &src, &dst, vec->len, iv);
+ vec->crypt_error = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
+done:
+ snprintf(name, max_namelen, "\"random: len=%u klen=%u\"",
+ vec->len, vec->klen);
+}
+
+/*
+ * Test the skcipher algorithm represented by @req against the corresponding
+ * generic implementation, if one is available.
+ */
+static int test_skcipher_vs_generic_impl(const char *driver,
+ const char *generic_driver,
+ struct skcipher_request *req,
+ struct cipher_test_sglists *tsgls)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const unsigned int ivsize = crypto_skcipher_ivsize(tfm);
+ const unsigned int blocksize = crypto_skcipher_blocksize(tfm);
+ const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
+ const char *algname = crypto_skcipher_alg(tfm)->base.cra_name;
+ char _generic_driver[CRYPTO_MAX_ALG_NAME];
+ struct crypto_skcipher *generic_tfm = NULL;
+ struct skcipher_request *generic_req = NULL;
+ unsigned int i;
+ struct cipher_testvec vec = { 0 };
+ char vec_name[64];
+ struct testvec_config cfg;
+ char cfgname[TESTVEC_CONFIG_NAMELEN];
+ int err;
+
+ if (noextratests)
+ return 0;
+
+ /* Keywrap isn't supported here yet as it handles its IV differently. */
+ if (strncmp(algname, "kw(", 3) == 0)
+ return 0;
+
+ if (!generic_driver) { /* Use default naming convention? */
+ err = build_generic_driver_name(algname, _generic_driver);
+ if (err)
+ return err;
+ generic_driver = _generic_driver;
+ }
+
+ if (strcmp(generic_driver, driver) == 0) /* Already the generic impl? */
+ return 0;
+
+ generic_tfm = crypto_alloc_skcipher(generic_driver, 0, 0);
+ if (IS_ERR(generic_tfm)) {
+ err = PTR_ERR(generic_tfm);
+ if (err == -ENOENT) {
+ pr_warn("alg: skcipher: skipping comparison tests for %s because %s is unavailable\n",
+ driver, generic_driver);
+ return 0;
+ }
+ pr_err("alg: skcipher: error allocating %s (generic impl of %s): %d\n",
+ generic_driver, algname, err);
+ return err;
+ }
+
+ generic_req = skcipher_request_alloc(generic_tfm, GFP_KERNEL);
+ if (!generic_req) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ /* Check the algorithm properties for consistency. */
+
+ if (tfm->keysize != generic_tfm->keysize) {
+ pr_err("alg: skcipher: max keysize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, tfm->keysize, generic_tfm->keysize);
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (ivsize != crypto_skcipher_ivsize(generic_tfm)) {
+ pr_err("alg: skcipher: ivsize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, ivsize, crypto_skcipher_ivsize(generic_tfm));
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (blocksize != crypto_skcipher_blocksize(generic_tfm)) {
+ pr_err("alg: skcipher: blocksize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, blocksize,
+ crypto_skcipher_blocksize(generic_tfm));
+ err = -EINVAL;
+ goto out;
+ }
+
+ /*
+ * Now generate test vectors using the generic implementation, and test
+ * the other implementation against them.
+ */
+
+ vec.key = kmalloc(tfm->keysize, GFP_KERNEL);
+ vec.iv = kmalloc(ivsize, GFP_KERNEL);
+ vec.ptext = kmalloc(maxdatasize, GFP_KERNEL);
+ vec.ctext = kmalloc(maxdatasize, GFP_KERNEL);
+ if (!vec.key || !vec.iv || !vec.ptext || !vec.ctext) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < fuzz_iterations * 8; i++) {
+ generate_random_cipher_testvec(generic_req, &vec, maxdatasize,
+ vec_name, sizeof(vec_name));
+ generate_random_testvec_config(&cfg, cfgname, sizeof(cfgname));
+
+ err = test_skcipher_vec_cfg(driver, ENCRYPT, &vec, vec_name,
+ &cfg, req, tsgls);
+ if (err)
+ goto out;
+ err = test_skcipher_vec_cfg(driver, DECRYPT, &vec, vec_name,
+ &cfg, req, tsgls);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ err = 0;
+out:
+ kfree(vec.key);
+ kfree(vec.iv);
+ kfree(vec.ptext);
+ kfree(vec.ctext);
+ crypto_free_skcipher(generic_tfm);
+ skcipher_request_free(generic_req);
+ return err;
+}
+#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
+static int test_skcipher_vs_generic_impl(const char *driver,
+ const char *generic_driver,
+ struct skcipher_request *req,
+ struct cipher_test_sglists *tsgls)
+{
+ return 0;
+}
+#endif /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
+
static int test_skcipher(const char *driver, int enc,
const struct cipher_test_suite *suite,
struct skcipher_request *req,
@@ -2183,6 +2363,11 @@ static int alg_test_skcipher(const struct alg_test_desc *desc,
goto out;
err = test_skcipher(driver, DECRYPT, suite, req, tsgls);
+ if (err)
+ goto out;
+
+ err = test_skcipher_vs_generic_impl(driver, desc->generic_driver, req,
+ tsgls);
out:
free_cipher_test_sglists(tsgls);
skcipher_request_free(req);
@@ -3138,12 +3323,14 @@ static int alg_test_null(const struct alg_test_desc *desc,
static const struct alg_test_desc alg_test_descs[] = {
{
.alg = "adiantum(xchacha12,aes)",
+ .generic_driver = "adiantum(xchacha12-generic,aes-generic,nhpoly1305-generic)",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(adiantum_xchacha12_aes_tv_template)
},
}, {
.alg = "adiantum(xchacha20,aes)",
+ .generic_driver = "adiantum(xchacha20-generic,aes-generic,nhpoly1305-generic)",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(adiantum_xchacha20_aes_tv_template)
@@ -3916,30 +4103,35 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}, {
.alg = "lrw(aes)",
+ .generic_driver = "lrw(ecb(aes-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(aes_lrw_tv_template)
}
}, {
.alg = "lrw(camellia)",
+ .generic_driver = "lrw(ecb(camellia-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(camellia_lrw_tv_template)
}
}, {
.alg = "lrw(cast6)",
+ .generic_driver = "lrw(ecb(cast6-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(cast6_lrw_tv_template)
}
}, {
.alg = "lrw(serpent)",
+ .generic_driver = "lrw(ecb(serpent-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(serpent_lrw_tv_template)
}
}, {
.alg = "lrw(twofish)",
+ .generic_driver = "lrw(ecb(twofish-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(tf_lrw_tv_template)
@@ -4274,6 +4466,7 @@ static const struct alg_test_desc alg_test_descs[] = {
},
}, {
.alg = "xts(aes)",
+ .generic_driver = "xts(ecb(aes-generic))",
.test = alg_test_skcipher,
.fips_allowed = 1,
.suite = {
@@ -4281,12 +4474,14 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}, {
.alg = "xts(camellia)",
+ .generic_driver = "xts(ecb(camellia-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(camellia_xts_tv_template)
}
}, {
.alg = "xts(cast6)",
+ .generic_driver = "xts(ecb(cast6-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(cast6_xts_tv_template)
@@ -4300,12 +4495,14 @@ static const struct alg_test_desc alg_test_descs[] = {
.fips_allowed = 1,
}, {
.alg = "xts(serpent)",
+ .generic_driver = "xts(ecb(serpent-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(serpent_xts_tv_template)
}
}, {
.alg = "xts(twofish)",
+ .generic_driver = "xts(ecb(twofish-generic))",
.test = alg_test_skcipher,
.suite = {
.cipher = __VECS(tf_xts_tv_template)
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index beb9bd79fe1fa..e03f4f72723b1 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -71,7 +71,7 @@ struct cipher_testvec {
const char *ptext;
const char *ctext;
unsigned char wk; /* weak key flag */
- unsigned char klen;
+ unsigned short klen;
unsigned short len;
bool fips_skip;
bool generates_iv;
--
2.21.0
^ permalink raw reply related [flat|nested] 16+ messages in thread* [PATCH v2 6/7] crypto: testmgr - fuzz AEADs against their generic implementation
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
` (4 preceding siblings ...)
2019-04-12 4:57 ` [PATCH v2 5/7] crypto: testmgr - fuzz skciphers " Eric Biggers
@ 2019-04-12 4:57 ` Eric Biggers
2019-04-12 4:57 ` [PATCH v2 7/7] crypto: run initcalls for generic implementations earlier Eric Biggers
` (3 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Eric Biggers @ 2019-04-12 4:57 UTC (permalink / raw)
To: linux-crypto, Herbert Xu
From: Eric Biggers <ebiggers@google.com>
When the extra crypto self-tests are enabled, test each AEAD algorithm
against its generic implementation when one is available. This
involves: checking the algorithm properties for consistency, then
randomly generating test vectors using the generic implementation and
running them against the implementation under test. Both good and bad
inputs are tested.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
crypto/testmgr.c | 229 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 229 insertions(+)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 7b9a7a90e9e25..29558783b75d3 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1767,6 +1767,226 @@ static int test_aead_vec(const char *driver, int enc,
return 0;
}
+#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
+/*
+ * Generate an AEAD test vector from the given implementation.
+ * Assumes the buffers in 'vec' were already allocated.
+ */
+static void generate_random_aead_testvec(struct aead_request *req,
+ struct aead_testvec *vec,
+ unsigned int maxkeysize,
+ unsigned int maxdatasize,
+ char *name, size_t max_namelen)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ const unsigned int ivsize = crypto_aead_ivsize(tfm);
+ unsigned int maxauthsize = crypto_aead_alg(tfm)->maxauthsize;
+ unsigned int authsize;
+ unsigned int total_len;
+ int i;
+ struct scatterlist src[2], dst;
+ u8 iv[MAX_IVLEN];
+ DECLARE_CRYPTO_WAIT(wait);
+
+ /* Key: length in [0, maxkeysize], but usually choose maxkeysize */
+ vec->klen = maxkeysize;
+ if (prandom_u32() % 4 == 0)
+ vec->klen = prandom_u32() % (maxkeysize + 1);
+ generate_random_bytes((u8 *)vec->key, vec->klen);
+ vec->setkey_error = crypto_aead_setkey(tfm, vec->key, vec->klen);
+
+ /* IV */
+ generate_random_bytes((u8 *)vec->iv, ivsize);
+
+ /* Tag length: in [0, maxauthsize], but usually choose maxauthsize */
+ authsize = maxauthsize;
+ if (prandom_u32() % 4 == 0)
+ authsize = prandom_u32() % (maxauthsize + 1);
+ if (WARN_ON(authsize > maxdatasize))
+ authsize = maxdatasize;
+ maxdatasize -= authsize;
+ vec->setauthsize_error = crypto_aead_setauthsize(tfm, authsize);
+
+ /* Plaintext and associated data */
+ total_len = generate_random_length(maxdatasize);
+ if (prandom_u32() % 4 == 0)
+ vec->alen = 0;
+ else
+ vec->alen = generate_random_length(total_len);
+ vec->plen = total_len - vec->alen;
+ generate_random_bytes((u8 *)vec->assoc, vec->alen);
+ generate_random_bytes((u8 *)vec->ptext, vec->plen);
+
+ vec->clen = vec->plen + authsize;
+
+ /*
+ * If the key or authentication tag size couldn't be set, no need to
+ * continue to encrypt.
+ */
+ if (vec->setkey_error || vec->setauthsize_error)
+ goto done;
+
+ /* Ciphertext */
+ sg_init_table(src, 2);
+ i = 0;
+ if (vec->alen)
+ sg_set_buf(&src[i++], vec->assoc, vec->alen);
+ if (vec->plen)
+ sg_set_buf(&src[i++], vec->ptext, vec->plen);
+ sg_init_one(&dst, vec->ctext, vec->alen + vec->clen);
+ memcpy(iv, vec->iv, ivsize);
+ aead_request_set_callback(req, 0, crypto_req_done, &wait);
+ aead_request_set_crypt(req, src, &dst, vec->plen, iv);
+ aead_request_set_ad(req, vec->alen);
+ vec->crypt_error = crypto_wait_req(crypto_aead_encrypt(req), &wait);
+ if (vec->crypt_error == 0)
+ memmove((u8 *)vec->ctext, vec->ctext + vec->alen, vec->clen);
+done:
+ snprintf(name, max_namelen,
+ "\"random: alen=%u plen=%u authsize=%u klen=%u\"",
+ vec->alen, vec->plen, authsize, vec->klen);
+}
+
+/*
+ * Test the AEAD algorithm represented by @req against the corresponding generic
+ * implementation, if one is available.
+ */
+static int test_aead_vs_generic_impl(const char *driver,
+ const struct alg_test_desc *test_desc,
+ struct aead_request *req,
+ struct cipher_test_sglists *tsgls)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ const unsigned int ivsize = crypto_aead_ivsize(tfm);
+ const unsigned int maxauthsize = crypto_aead_alg(tfm)->maxauthsize;
+ const unsigned int blocksize = crypto_aead_blocksize(tfm);
+ const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
+ const char *algname = crypto_aead_alg(tfm)->base.cra_name;
+ const char *generic_driver = test_desc->generic_driver;
+ char _generic_driver[CRYPTO_MAX_ALG_NAME];
+ struct crypto_aead *generic_tfm = NULL;
+ struct aead_request *generic_req = NULL;
+ unsigned int maxkeysize;
+ unsigned int i;
+ struct aead_testvec vec = { 0 };
+ char vec_name[64];
+ struct testvec_config cfg;
+ char cfgname[TESTVEC_CONFIG_NAMELEN];
+ int err;
+
+ if (noextratests)
+ return 0;
+
+ if (!generic_driver) { /* Use default naming convention? */
+ err = build_generic_driver_name(algname, _generic_driver);
+ if (err)
+ return err;
+ generic_driver = _generic_driver;
+ }
+
+ if (strcmp(generic_driver, driver) == 0) /* Already the generic impl? */
+ return 0;
+
+ generic_tfm = crypto_alloc_aead(generic_driver, 0, 0);
+ if (IS_ERR(generic_tfm)) {
+ err = PTR_ERR(generic_tfm);
+ if (err == -ENOENT) {
+ pr_warn("alg: aead: skipping comparison tests for %s because %s is unavailable\n",
+ driver, generic_driver);
+ return 0;
+ }
+ pr_err("alg: aead: error allocating %s (generic impl of %s): %d\n",
+ generic_driver, algname, err);
+ return err;
+ }
+
+ generic_req = aead_request_alloc(generic_tfm, GFP_KERNEL);
+ if (!generic_req) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ /* Check the algorithm properties for consistency. */
+
+ if (maxauthsize != crypto_aead_alg(generic_tfm)->maxauthsize) {
+ pr_err("alg: aead: maxauthsize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, maxauthsize,
+ crypto_aead_alg(generic_tfm)->maxauthsize);
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (ivsize != crypto_aead_ivsize(generic_tfm)) {
+ pr_err("alg: aead: ivsize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, ivsize, crypto_aead_ivsize(generic_tfm));
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (blocksize != crypto_aead_blocksize(generic_tfm)) {
+ pr_err("alg: aead: blocksize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, blocksize, crypto_aead_blocksize(generic_tfm));
+ err = -EINVAL;
+ goto out;
+ }
+
+ /*
+ * Now generate test vectors using the generic implementation, and test
+ * the other implementation against them.
+ */
+
+ maxkeysize = 0;
+ for (i = 0; i < test_desc->suite.aead.count; i++)
+ maxkeysize = max_t(unsigned int, maxkeysize,
+ test_desc->suite.aead.vecs[i].klen);
+
+ vec.key = kmalloc(maxkeysize, GFP_KERNEL);
+ vec.iv = kmalloc(ivsize, GFP_KERNEL);
+ vec.assoc = kmalloc(maxdatasize, GFP_KERNEL);
+ vec.ptext = kmalloc(maxdatasize, GFP_KERNEL);
+ vec.ctext = kmalloc(maxdatasize, GFP_KERNEL);
+ if (!vec.key || !vec.iv || !vec.assoc || !vec.ptext || !vec.ctext) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0; i < fuzz_iterations * 8; i++) {
+ generate_random_aead_testvec(generic_req, &vec,
+ maxkeysize, maxdatasize,
+ vec_name, sizeof(vec_name));
+ generate_random_testvec_config(&cfg, cfgname, sizeof(cfgname));
+
+ err = test_aead_vec_cfg(driver, ENCRYPT, &vec, vec_name, &cfg,
+ req, tsgls);
+ if (err)
+ goto out;
+ err = test_aead_vec_cfg(driver, DECRYPT, &vec, vec_name, &cfg,
+ req, tsgls);
+ if (err)
+ goto out;
+ cond_resched();
+ }
+ err = 0;
+out:
+ kfree(vec.key);
+ kfree(vec.iv);
+ kfree(vec.assoc);
+ kfree(vec.ptext);
+ kfree(vec.ctext);
+ crypto_free_aead(generic_tfm);
+ aead_request_free(generic_req);
+ return err;
+}
+#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
+static int test_aead_vs_generic_impl(const char *driver,
+ const struct alg_test_desc *test_desc,
+ struct aead_request *req,
+ struct cipher_test_sglists *tsgls)
+{
+ return 0;
+}
+#endif /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
+
static int test_aead(const char *driver, int enc,
const struct aead_test_suite *suite,
struct aead_request *req,
@@ -1826,6 +2046,10 @@ static int alg_test_aead(const struct alg_test_desc *desc, const char *driver,
goto out;
err = test_aead(driver, DECRYPT, suite, req, tsgls);
+ if (err)
+ goto out;
+
+ err = test_aead_vs_generic_impl(driver, desc, req, tsgls);
out:
free_cipher_test_sglists(tsgls);
aead_request_free(req);
@@ -3573,6 +3797,7 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}, {
.alg = "ccm(aes)",
+ .generic_driver = "ccm_base(ctr(aes-generic),cbcmac(aes-generic))",
.test = alg_test_aead,
.fips_allowed = 1,
.suite = {
@@ -3985,6 +4210,7 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}, {
.alg = "gcm(aes)",
+ .generic_driver = "gcm_base(ctr(aes-generic),ghash-generic)",
.test = alg_test_aead,
.fips_allowed = 1,
.suite = {
@@ -4256,6 +4482,7 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}, {
.alg = "rfc4106(gcm(aes))",
+ .generic_driver = "rfc4106(gcm_base(ctr(aes-generic),ghash-generic))",
.test = alg_test_aead,
.fips_allowed = 1,
.suite = {
@@ -4263,6 +4490,7 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}, {
.alg = "rfc4309(ccm(aes))",
+ .generic_driver = "rfc4309(ccm_base(ctr(aes-generic),cbcmac(aes-generic)))",
.test = alg_test_aead,
.fips_allowed = 1,
.suite = {
@@ -4270,6 +4498,7 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}, {
.alg = "rfc4543(gcm(aes))",
+ .generic_driver = "rfc4543(gcm_base(ctr(aes-generic),ghash-generic))",
.test = alg_test_aead,
.suite = {
.aead = __VECS(aes_gcm_rfc4543_tv_template)
--
2.21.0
^ permalink raw reply related [flat|nested] 16+ messages in thread* [PATCH v2 7/7] crypto: run initcalls for generic implementations earlier
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
` (5 preceding siblings ...)
2019-04-12 4:57 ` [PATCH v2 6/7] crypto: testmgr - fuzz AEADs " Eric Biggers
@ 2019-04-12 4:57 ` Eric Biggers
2019-04-12 21:04 ` [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Ard Biesheuvel
` (2 subsequent siblings)
9 siblings, 0 replies; 16+ messages in thread
From: Eric Biggers @ 2019-04-12 4:57 UTC (permalink / raw)
To: linux-crypto, Herbert Xu
From: Eric Biggers <ebiggers@google.com>
Use subsys_initcall for registration of all templates and generic
algorithm implementations, rather than module_init. Then change
cryptomgr to use arch_initcall, to place it before the subsys_initcalls.
This is needed so that when both a generic and optimized implementation
of an algorithm are built into the kernel (not loadable modules), the
generic implementation is registered before the optimized one.
Otherwise, the self-tests for the optimized implementation are unable to
allocate the generic implementation for the new comparison fuzz tests.
Note that on arm, a side effect of this change is that self-tests for
generic implementations may run before the unaligned access handler has
been installed. So, unaligned accesses will crash the kernel. This is
arguably a good thing as it makes it easier to detect that type of bug.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
crypto/842.c | 2 +-
crypto/adiantum.c | 2 +-
crypto/aegis128.c | 2 +-
crypto/aegis128l.c | 2 +-
crypto/aegis256.c | 2 +-
crypto/aes_generic.c | 2 +-
crypto/algboss.c | 8 +++++++-
crypto/ansi_cprng.c | 2 +-
crypto/anubis.c | 2 +-
crypto/arc4.c | 2 +-
crypto/authenc.c | 2 +-
crypto/authencesn.c | 2 +-
crypto/blowfish_generic.c | 2 +-
crypto/camellia_generic.c | 2 +-
crypto/cast5_generic.c | 2 +-
crypto/cast6_generic.c | 2 +-
crypto/cbc.c | 2 +-
crypto/ccm.c | 2 +-
crypto/cfb.c | 2 +-
crypto/chacha20poly1305.c | 2 +-
crypto/chacha_generic.c | 2 +-
crypto/cmac.c | 2 +-
crypto/crc32_generic.c | 2 +-
crypto/crc32c_generic.c | 2 +-
crypto/crct10dif_generic.c | 2 +-
crypto/crypto_null.c | 2 +-
crypto/ctr.c | 2 +-
crypto/cts.c | 2 +-
crypto/deflate.c | 2 +-
crypto/des_generic.c | 2 +-
crypto/dh.c | 2 +-
crypto/drbg.c | 2 +-
crypto/ecb.c | 2 +-
crypto/ecdh.c | 2 +-
crypto/echainiv.c | 2 +-
crypto/fcrypt.c | 2 +-
crypto/fips.c | 2 +-
crypto/gcm.c | 2 +-
crypto/ghash-generic.c | 2 +-
crypto/hmac.c | 2 +-
crypto/jitterentropy-kcapi.c | 2 +-
crypto/keywrap.c | 2 +-
crypto/khazad.c | 2 +-
crypto/lrw.c | 2 +-
crypto/lz4.c | 2 +-
crypto/lz4hc.c | 2 +-
crypto/lzo-rle.c | 2 +-
crypto/lzo.c | 2 +-
crypto/md4.c | 2 +-
crypto/md5.c | 2 +-
crypto/michael_mic.c | 2 +-
crypto/morus1280.c | 2 +-
crypto/morus640.c | 2 +-
crypto/nhpoly1305.c | 2 +-
crypto/ofb.c | 2 +-
crypto/pcbc.c | 2 +-
crypto/pcrypt.c | 2 +-
crypto/poly1305_generic.c | 2 +-
crypto/rmd128.c | 2 +-
crypto/rmd160.c | 2 +-
crypto/rmd256.c | 2 +-
crypto/rmd320.c | 2 +-
crypto/rsa.c | 2 +-
crypto/salsa20_generic.c | 2 +-
crypto/seed.c | 2 +-
crypto/seqiv.c | 2 +-
crypto/serpent_generic.c | 2 +-
crypto/sha1_generic.c | 2 +-
crypto/sha256_generic.c | 2 +-
crypto/sha3_generic.c | 2 +-
crypto/sha512_generic.c | 2 +-
crypto/sm3_generic.c | 2 +-
crypto/sm4_generic.c | 2 +-
crypto/streebog_generic.c | 2 +-
crypto/tcrypt.c | 2 +-
crypto/tea.c | 2 +-
crypto/tgr192.c | 2 +-
crypto/twofish_generic.c | 2 +-
crypto/vmac.c | 2 +-
crypto/wp512.c | 2 +-
crypto/xcbc.c | 2 +-
crypto/xts.c | 2 +-
crypto/zstd.c | 2 +-
83 files changed, 89 insertions(+), 83 deletions(-)
diff --git a/crypto/842.c b/crypto/842.c
index bc26dc942821c..5f98393b65d1e 100644
--- a/crypto/842.c
+++ b/crypto/842.c
@@ -144,7 +144,7 @@ static int __init crypto842_mod_init(void)
return ret;
}
-module_init(crypto842_mod_init);
+subsys_initcall(crypto842_mod_init);
static void __exit crypto842_mod_exit(void)
{
diff --git a/crypto/adiantum.c b/crypto/adiantum.c
index 5564e73266a6a..e6de50f669aa7 100644
--- a/crypto/adiantum.c
+++ b/crypto/adiantum.c
@@ -659,7 +659,7 @@ static void __exit adiantum_module_exit(void)
crypto_unregister_template(&adiantum_tmpl);
}
-module_init(adiantum_module_init);
+subsys_initcall(adiantum_module_init);
module_exit(adiantum_module_exit);
MODULE_DESCRIPTION("Adiantum length-preserving encryption mode");
diff --git a/crypto/aegis128.c b/crypto/aegis128.c
index 3718a83413032..d78f77fc5dd18 100644
--- a/crypto/aegis128.c
+++ b/crypto/aegis128.c
@@ -448,7 +448,7 @@ static void __exit crypto_aegis128_module_exit(void)
crypto_unregister_aead(&crypto_aegis128_alg);
}
-module_init(crypto_aegis128_module_init);
+subsys_initcall(crypto_aegis128_module_init);
module_exit(crypto_aegis128_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/aegis128l.c b/crypto/aegis128l.c
index 275a8616d71bd..9bca3d619a22b 100644
--- a/crypto/aegis128l.c
+++ b/crypto/aegis128l.c
@@ -512,7 +512,7 @@ static void __exit crypto_aegis128l_module_exit(void)
crypto_unregister_aead(&crypto_aegis128l_alg);
}
-module_init(crypto_aegis128l_module_init);
+subsys_initcall(crypto_aegis128l_module_init);
module_exit(crypto_aegis128l_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/aegis256.c b/crypto/aegis256.c
index ecd6b7f34a2d2..b47fd39595ad7 100644
--- a/crypto/aegis256.c
+++ b/crypto/aegis256.c
@@ -463,7 +463,7 @@ static void __exit crypto_aegis256_module_exit(void)
crypto_unregister_aead(&crypto_aegis256_alg);
}
-module_init(crypto_aegis256_module_init);
+subsys_initcall(crypto_aegis256_module_init);
module_exit(crypto_aegis256_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/aes_generic.c b/crypto/aes_generic.c
index fddcbe3edb0a6..f217568917e42 100644
--- a/crypto/aes_generic.c
+++ b/crypto/aes_generic.c
@@ -1470,7 +1470,7 @@ static void __exit aes_fini(void)
crypto_unregister_alg(&aes_alg);
}
-module_init(aes_init);
+subsys_initcall(aes_init);
module_exit(aes_fini);
MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
diff --git a/crypto/algboss.c b/crypto/algboss.c
index 527b44d0af21b..bb97cfb388367 100644
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -296,7 +296,13 @@ static void __exit cryptomgr_exit(void)
BUG_ON(err);
}
-subsys_initcall(cryptomgr_init);
+/*
+ * This is arch_initcall() so that the crypto self-tests are run on algorithms
+ * registered early by subsys_initcall(). subsys_initcall() is needed for
+ * generic implementations so that they're available for comparison tests when
+ * other implementations are registered later by module_init().
+ */
+arch_initcall(cryptomgr_init);
module_exit(cryptomgr_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c
index eff337ce90037..e7c43ea4ce9d1 100644
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -472,7 +472,7 @@ MODULE_DESCRIPTION("Software Pseudo Random Number Generator");
MODULE_AUTHOR("Neil Horman <nhorman@tuxdriver.com>");
module_param(dbg, int, 0);
MODULE_PARM_DESC(dbg, "Boolean to enable debugging (0/1 == off/on)");
-module_init(prng_mod_init);
+subsys_initcall(prng_mod_init);
module_exit(prng_mod_fini);
MODULE_ALIAS_CRYPTO("stdrng");
MODULE_ALIAS_CRYPTO("ansi_cprng");
diff --git a/crypto/anubis.c b/crypto/anubis.c
index 4bb187c2a9027..673927de0eb92 100644
--- a/crypto/anubis.c
+++ b/crypto/anubis.c
@@ -699,7 +699,7 @@ static void __exit anubis_mod_fini(void)
crypto_unregister_alg(&anubis_alg);
}
-module_init(anubis_mod_init);
+subsys_initcall(anubis_mod_init);
module_exit(anubis_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/arc4.c b/crypto/arc4.c
index 6c93342e3405b..2233d36456e27 100644
--- a/crypto/arc4.c
+++ b/crypto/arc4.c
@@ -163,7 +163,7 @@ static void __exit arc4_exit(void)
crypto_unregister_skcipher(&arc4_skcipher);
}
-module_init(arc4_init);
+subsys_initcall(arc4_init);
module_exit(arc4_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/authenc.c b/crypto/authenc.c
index 4be293a4b5f0f..b3eddac7fa3a4 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -508,7 +508,7 @@ static void __exit crypto_authenc_module_exit(void)
crypto_unregister_template(&crypto_authenc_tmpl);
}
-module_init(crypto_authenc_module_init);
+subsys_initcall(crypto_authenc_module_init);
module_exit(crypto_authenc_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index 4741fe89ba2cd..58074308e5350 100644
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -523,7 +523,7 @@ static void __exit crypto_authenc_esn_module_exit(void)
crypto_unregister_template(&crypto_authenc_esn_tmpl);
}
-module_init(crypto_authenc_esn_module_init);
+subsys_initcall(crypto_authenc_esn_module_init);
module_exit(crypto_authenc_esn_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/blowfish_generic.c b/crypto/blowfish_generic.c
index 87b392a77a939..8548ced8b0741 100644
--- a/crypto/blowfish_generic.c
+++ b/crypto/blowfish_generic.c
@@ -133,7 +133,7 @@ static void __exit blowfish_mod_fini(void)
crypto_unregister_alg(&alg);
}
-module_init(blowfish_mod_init);
+subsys_initcall(blowfish_mod_init);
module_exit(blowfish_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/camellia_generic.c b/crypto/camellia_generic.c
index 32ddd4836ff55..15ce1281f5d9c 100644
--- a/crypto/camellia_generic.c
+++ b/crypto/camellia_generic.c
@@ -1092,7 +1092,7 @@ static void __exit camellia_fini(void)
crypto_unregister_alg(&camellia_alg);
}
-module_init(camellia_init);
+subsys_initcall(camellia_init);
module_exit(camellia_fini);
MODULE_DESCRIPTION("Camellia Cipher Algorithm");
diff --git a/crypto/cast5_generic.c b/crypto/cast5_generic.c
index 66169c1783148..24bc7d4e33be0 100644
--- a/crypto/cast5_generic.c
+++ b/crypto/cast5_generic.c
@@ -543,7 +543,7 @@ static void __exit cast5_mod_fini(void)
crypto_unregister_alg(&alg);
}
-module_init(cast5_mod_init);
+subsys_initcall(cast5_mod_init);
module_exit(cast5_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/cast6_generic.c b/crypto/cast6_generic.c
index c8e5ec69790e2..edd59cc349919 100644
--- a/crypto/cast6_generic.c
+++ b/crypto/cast6_generic.c
@@ -285,7 +285,7 @@ static void __exit cast6_mod_fini(void)
crypto_unregister_alg(&alg);
}
-module_init(cast6_mod_init);
+subsys_initcall(cast6_mod_init);
module_exit(cast6_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/cbc.c b/crypto/cbc.c
index d12efaac9230b..129f79d033658 100644
--- a/crypto/cbc.c
+++ b/crypto/cbc.c
@@ -98,7 +98,7 @@ static void __exit crypto_cbc_module_exit(void)
crypto_unregister_template(&crypto_cbc_tmpl);
}
-module_init(crypto_cbc_module_init);
+subsys_initcall(crypto_cbc_module_init);
module_exit(crypto_cbc_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/ccm.c b/crypto/ccm.c
index dbb3b6d8e6136..1d6c58287de1e 100644
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -1005,7 +1005,7 @@ static void __exit crypto_ccm_module_exit(void)
ARRAY_SIZE(crypto_ccm_tmpls));
}
-module_init(crypto_ccm_module_init);
+subsys_initcall(crypto_ccm_module_init);
module_exit(crypto_ccm_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/cfb.c b/crypto/cfb.c
index 03ac847f6d6ab..7b68fbb617324 100644
--- a/crypto/cfb.c
+++ b/crypto/cfb.c
@@ -243,7 +243,7 @@ static void __exit crypto_cfb_module_exit(void)
crypto_unregister_template(&crypto_cfb_tmpl);
}
-module_init(crypto_cfb_module_init);
+subsys_initcall(crypto_cfb_module_init);
module_exit(crypto_cfb_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/chacha20poly1305.c b/crypto/chacha20poly1305.c
index 279d816ab51dd..e38a2d61819a7 100644
--- a/crypto/chacha20poly1305.c
+++ b/crypto/chacha20poly1305.c
@@ -725,7 +725,7 @@ static void __exit chacha20poly1305_module_exit(void)
ARRAY_SIZE(rfc7539_tmpls));
}
-module_init(chacha20poly1305_module_init);
+subsys_initcall(chacha20poly1305_module_init);
module_exit(chacha20poly1305_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/chacha_generic.c b/crypto/chacha_generic.c
index a7fae9b73ec4e..d2ec04997832e 100644
--- a/crypto/chacha_generic.c
+++ b/crypto/chacha_generic.c
@@ -201,7 +201,7 @@ static void __exit chacha_generic_mod_fini(void)
crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
}
-module_init(chacha_generic_mod_init);
+subsys_initcall(chacha_generic_mod_init);
module_exit(chacha_generic_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/cmac.c b/crypto/cmac.c
index 16301f52858ca..c60b6c011ec60 100644
--- a/crypto/cmac.c
+++ b/crypto/cmac.c
@@ -313,7 +313,7 @@ static void __exit crypto_cmac_module_exit(void)
crypto_unregister_template(&crypto_cmac_tmpl);
}
-module_init(crypto_cmac_module_init);
+subsys_initcall(crypto_cmac_module_init);
module_exit(crypto_cmac_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/crc32_generic.c b/crypto/crc32_generic.c
index 00facd27bcc29..9e97912280bdf 100644
--- a/crypto/crc32_generic.c
+++ b/crypto/crc32_generic.c
@@ -146,7 +146,7 @@ static void __exit crc32_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(crc32_mod_init);
+subsys_initcall(crc32_mod_init);
module_exit(crc32_mod_fini);
MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>");
diff --git a/crypto/crc32c_generic.c b/crypto/crc32c_generic.c
index 7283066ecc982..ad26f15d4c7b3 100644
--- a/crypto/crc32c_generic.c
+++ b/crypto/crc32c_generic.c
@@ -165,7 +165,7 @@ static void __exit crc32c_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(crc32c_mod_init);
+subsys_initcall(crc32c_mod_init);
module_exit(crc32c_mod_fini);
MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>");
diff --git a/crypto/crct10dif_generic.c b/crypto/crct10dif_generic.c
index d08048ae55527..d90c0070710e8 100644
--- a/crypto/crct10dif_generic.c
+++ b/crypto/crct10dif_generic.c
@@ -112,7 +112,7 @@ static void __exit crct10dif_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(crct10dif_mod_init);
+subsys_initcall(crct10dif_mod_init);
module_exit(crct10dif_mod_fini);
MODULE_AUTHOR("Tim Chen <tim.c.chen@linux.intel.com>");
diff --git a/crypto/crypto_null.c b/crypto/crypto_null.c
index 01630a9c7e011..9320d4eaa4a8a 100644
--- a/crypto/crypto_null.c
+++ b/crypto/crypto_null.c
@@ -220,7 +220,7 @@ static void __exit crypto_null_mod_fini(void)
crypto_unregister_skcipher(&skcipher_null);
}
-module_init(crypto_null_mod_init);
+subsys_initcall(crypto_null_mod_init);
module_exit(crypto_null_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/ctr.c b/crypto/ctr.c
index ec8f8b67473a0..52cdf2c5605fb 100644
--- a/crypto/ctr.c
+++ b/crypto/ctr.c
@@ -384,7 +384,7 @@ static void __exit crypto_ctr_module_exit(void)
ARRAY_SIZE(crypto_ctr_tmpls));
}
-module_init(crypto_ctr_module_init);
+subsys_initcall(crypto_ctr_module_init);
module_exit(crypto_ctr_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/cts.c b/crypto/cts.c
index 9441da797bb90..6b6087dbb62a2 100644
--- a/crypto/cts.c
+++ b/crypto/cts.c
@@ -423,7 +423,7 @@ static void __exit crypto_cts_module_exit(void)
crypto_unregister_template(&crypto_cts_tmpl);
}
-module_init(crypto_cts_module_init);
+subsys_initcall(crypto_cts_module_init);
module_exit(crypto_cts_module_exit);
MODULE_LICENSE("Dual BSD/GPL");
diff --git a/crypto/deflate.c b/crypto/deflate.c
index 94ec3b36a8e83..aab089cde1bf8 100644
--- a/crypto/deflate.c
+++ b/crypto/deflate.c
@@ -334,7 +334,7 @@ static void __exit deflate_mod_fini(void)
crypto_unregister_scomps(scomp, ARRAY_SIZE(scomp));
}
-module_init(deflate_mod_init);
+subsys_initcall(deflate_mod_init);
module_exit(deflate_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/des_generic.c b/crypto/des_generic.c
index 1e6621665dd92..9efebe47f8f0a 100644
--- a/crypto/des_generic.c
+++ b/crypto/des_generic.c
@@ -993,7 +993,7 @@ static void __exit des_generic_mod_fini(void)
crypto_unregister_algs(des_algs, ARRAY_SIZE(des_algs));
}
-module_init(des_generic_mod_init);
+subsys_initcall(des_generic_mod_init);
module_exit(des_generic_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/dh.c b/crypto/dh.c
index 09a44de4209d1..ce77fb4ee8b32 100644
--- a/crypto/dh.c
+++ b/crypto/dh.c
@@ -236,7 +236,7 @@ static void dh_exit(void)
crypto_unregister_kpp(&dh);
}
-module_init(dh_init);
+subsys_initcall(dh_init);
module_exit(dh_exit);
MODULE_ALIAS_CRYPTO("dh");
MODULE_LICENSE("GPL");
diff --git a/crypto/drbg.c b/crypto/drbg.c
index bc52d95626110..710b3046a4df2 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -2039,7 +2039,7 @@ static void __exit drbg_exit(void)
crypto_unregister_rngs(drbg_algs, (ARRAY_SIZE(drbg_cores) * 2));
}
-module_init(drbg_init);
+subsys_initcall(drbg_init);
module_exit(drbg_exit);
#ifndef CRYPTO_DRBG_HASH_STRING
#define CRYPTO_DRBG_HASH_STRING ""
diff --git a/crypto/ecb.c b/crypto/ecb.c
index 0732715c8d915..de839129d151c 100644
--- a/crypto/ecb.c
+++ b/crypto/ecb.c
@@ -101,7 +101,7 @@ static void __exit crypto_ecb_module_exit(void)
crypto_unregister_template(&crypto_ecb_tmpl);
}
-module_init(crypto_ecb_module_init);
+subsys_initcall(crypto_ecb_module_init);
module_exit(crypto_ecb_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/ecdh.c b/crypto/ecdh.c
index bf6300175b9cd..890092bd89899 100644
--- a/crypto/ecdh.c
+++ b/crypto/ecdh.c
@@ -166,7 +166,7 @@ static void ecdh_exit(void)
crypto_unregister_kpp(&ecdh);
}
-module_init(ecdh_init);
+subsys_initcall(ecdh_init);
module_exit(ecdh_exit);
MODULE_ALIAS_CRYPTO("ecdh");
MODULE_LICENSE("GPL");
diff --git a/crypto/echainiv.c b/crypto/echainiv.c
index 77e607fdbfb73..e71d1bc8d850d 100644
--- a/crypto/echainiv.c
+++ b/crypto/echainiv.c
@@ -174,7 +174,7 @@ static void __exit echainiv_module_exit(void)
crypto_unregister_template(&echainiv_tmpl);
}
-module_init(echainiv_module_init);
+subsys_initcall(echainiv_module_init);
module_exit(echainiv_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/fcrypt.c b/crypto/fcrypt.c
index 77286ea28865b..4e8704405a3b9 100644
--- a/crypto/fcrypt.c
+++ b/crypto/fcrypt.c
@@ -414,7 +414,7 @@ static void __exit fcrypt_mod_fini(void)
crypto_unregister_alg(&fcrypt_alg);
}
-module_init(fcrypt_mod_init);
+subsys_initcall(fcrypt_mod_init);
module_exit(fcrypt_mod_fini);
MODULE_LICENSE("Dual BSD/GPL");
diff --git a/crypto/fips.c b/crypto/fips.c
index 9d627c1cf8bc7..9dfed122d6da9 100644
--- a/crypto/fips.c
+++ b/crypto/fips.c
@@ -74,5 +74,5 @@ static void __exit fips_exit(void)
crypto_proc_fips_exit();
}
-module_init(fips_init);
+subsys_initcall(fips_init);
module_exit(fips_exit);
diff --git a/crypto/gcm.c b/crypto/gcm.c
index c7354ed1fa4d4..6fd98a4d186dd 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -1244,7 +1244,7 @@ static void __exit crypto_gcm_module_exit(void)
ARRAY_SIZE(crypto_gcm_tmpls));
}
-module_init(crypto_gcm_module_init);
+subsys_initcall(crypto_gcm_module_init);
module_exit(crypto_gcm_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/ghash-generic.c b/crypto/ghash-generic.c
index d9f192b953b22..e6307935413c1 100644
--- a/crypto/ghash-generic.c
+++ b/crypto/ghash-generic.c
@@ -149,7 +149,7 @@ static void __exit ghash_mod_exit(void)
crypto_unregister_shash(&ghash_alg);
}
-module_init(ghash_mod_init);
+subsys_initcall(ghash_mod_init);
module_exit(ghash_mod_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/hmac.c b/crypto/hmac.c
index e74730224f0a5..4ceb3f1f0eb84 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -268,7 +268,7 @@ static void __exit hmac_module_exit(void)
crypto_unregister_template(&hmac_tmpl);
}
-module_init(hmac_module_init);
+subsys_initcall(hmac_module_init);
module_exit(hmac_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/jitterentropy-kcapi.c b/crypto/jitterentropy-kcapi.c
index 787dccca37159..6ea1a270b8dc2 100644
--- a/crypto/jitterentropy-kcapi.c
+++ b/crypto/jitterentropy-kcapi.c
@@ -198,7 +198,7 @@ static void __exit jent_mod_exit(void)
crypto_unregister_rng(&jent_alg);
}
-module_init(jent_mod_init);
+subsys_initcall(jent_mod_init);
module_exit(jent_mod_exit);
MODULE_LICENSE("Dual BSD/GPL");
diff --git a/crypto/keywrap.c b/crypto/keywrap.c
index a5cfe610d8f40..a155c88105ea1 100644
--- a/crypto/keywrap.c
+++ b/crypto/keywrap.c
@@ -310,7 +310,7 @@ static void __exit crypto_kw_exit(void)
crypto_unregister_template(&crypto_kw_tmpl);
}
-module_init(crypto_kw_init);
+subsys_initcall(crypto_kw_init);
module_exit(crypto_kw_exit);
MODULE_LICENSE("Dual BSD/GPL");
diff --git a/crypto/khazad.c b/crypto/khazad.c
index 873eb5ded6d7a..b50aa8a3ab4cf 100644
--- a/crypto/khazad.c
+++ b/crypto/khazad.c
@@ -875,7 +875,7 @@ static void __exit khazad_mod_fini(void)
}
-module_init(khazad_mod_init);
+subsys_initcall(khazad_mod_init);
module_exit(khazad_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/lrw.c b/crypto/lrw.c
index b6666c595a686..0cc689ab69596 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -433,7 +433,7 @@ static void __exit crypto_module_exit(void)
crypto_unregister_template(&crypto_tmpl);
}
-module_init(crypto_module_init);
+subsys_initcall(crypto_module_init);
module_exit(crypto_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/lz4.c b/crypto/lz4.c
index c160dfdbf2e07..1e35134d0a98d 100644
--- a/crypto/lz4.c
+++ b/crypto/lz4.c
@@ -164,7 +164,7 @@ static void __exit lz4_mod_fini(void)
crypto_unregister_scomp(&scomp);
}
-module_init(lz4_mod_init);
+subsys_initcall(lz4_mod_init);
module_exit(lz4_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/lz4hc.c b/crypto/lz4hc.c
index 583b5e013d7a5..4a220b628fe7e 100644
--- a/crypto/lz4hc.c
+++ b/crypto/lz4hc.c
@@ -165,7 +165,7 @@ static void __exit lz4hc_mod_fini(void)
crypto_unregister_scomp(&scomp);
}
-module_init(lz4hc_mod_init);
+subsys_initcall(lz4hc_mod_init);
module_exit(lz4hc_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/lzo-rle.c b/crypto/lzo-rle.c
index ea9c75b1db49b..4c82bf18440f0 100644
--- a/crypto/lzo-rle.c
+++ b/crypto/lzo-rle.c
@@ -167,7 +167,7 @@ static void __exit lzorle_mod_fini(void)
crypto_unregister_scomp(&scomp);
}
-module_init(lzorle_mod_init);
+subsys_initcall(lzorle_mod_init);
module_exit(lzorle_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/lzo.c b/crypto/lzo.c
index 218567d717d68..4a6ac8f247d0a 100644
--- a/crypto/lzo.c
+++ b/crypto/lzo.c
@@ -167,7 +167,7 @@ static void __exit lzo_mod_fini(void)
crypto_unregister_scomp(&scomp);
}
-module_init(lzo_mod_init);
+subsys_initcall(lzo_mod_init);
module_exit(lzo_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/md4.c b/crypto/md4.c
index 9965ec40d9f97..9a1a228a0c695 100644
--- a/crypto/md4.c
+++ b/crypto/md4.c
@@ -232,7 +232,7 @@ static void __exit md4_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(md4_mod_init);
+subsys_initcall(md4_mod_init);
module_exit(md4_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/md5.c b/crypto/md5.c
index 94dd78144ba3e..221c2c0932f83 100644
--- a/crypto/md5.c
+++ b/crypto/md5.c
@@ -244,7 +244,7 @@ static void __exit md5_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(md5_mod_init);
+subsys_initcall(md5_mod_init);
module_exit(md5_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/michael_mic.c b/crypto/michael_mic.c
index 46195e0d0f4d1..538ae79337957 100644
--- a/crypto/michael_mic.c
+++ b/crypto/michael_mic.c
@@ -178,7 +178,7 @@ static void __exit michael_mic_exit(void)
}
-module_init(michael_mic_init);
+subsys_initcall(michael_mic_init);
module_exit(michael_mic_exit);
MODULE_LICENSE("GPL v2");
diff --git a/crypto/morus1280.c b/crypto/morus1280.c
index 0747732d5b78a..f8734c6576af6 100644
--- a/crypto/morus1280.c
+++ b/crypto/morus1280.c
@@ -532,7 +532,7 @@ static void __exit crypto_morus1280_module_exit(void)
crypto_unregister_aead(&crypto_morus1280_alg);
}
-module_init(crypto_morus1280_module_init);
+subsys_initcall(crypto_morus1280_module_init);
module_exit(crypto_morus1280_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/morus640.c b/crypto/morus640.c
index 1617a1eb8be13..ae5aa9482cb45 100644
--- a/crypto/morus640.c
+++ b/crypto/morus640.c
@@ -523,7 +523,7 @@ static void __exit crypto_morus640_module_exit(void)
crypto_unregister_aead(&crypto_morus640_alg);
}
-module_init(crypto_morus640_module_init);
+subsys_initcall(crypto_morus640_module_init);
module_exit(crypto_morus640_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/nhpoly1305.c b/crypto/nhpoly1305.c
index ec831a5594d8f..9ab4e07cde4dc 100644
--- a/crypto/nhpoly1305.c
+++ b/crypto/nhpoly1305.c
@@ -244,7 +244,7 @@ static void __exit nhpoly1305_mod_exit(void)
crypto_unregister_shash(&nhpoly1305_alg);
}
-module_init(nhpoly1305_mod_init);
+subsys_initcall(nhpoly1305_mod_init);
module_exit(nhpoly1305_mod_exit);
MODULE_DESCRIPTION("NHPoly1305 ε-almost-∆-universal hash function");
diff --git a/crypto/ofb.c b/crypto/ofb.c
index 34b6e1f426f7a..133ff4c7f2c67 100644
--- a/crypto/ofb.c
+++ b/crypto/ofb.c
@@ -95,7 +95,7 @@ static void __exit crypto_ofb_module_exit(void)
crypto_unregister_template(&crypto_ofb_tmpl);
}
-module_init(crypto_ofb_module_init);
+subsys_initcall(crypto_ofb_module_init);
module_exit(crypto_ofb_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/pcbc.c b/crypto/pcbc.c
index 2fa03fc576fe4..31b3ce948474e 100644
--- a/crypto/pcbc.c
+++ b/crypto/pcbc.c
@@ -191,7 +191,7 @@ static void __exit crypto_pcbc_module_exit(void)
crypto_unregister_template(&crypto_pcbc_tmpl);
}
-module_init(crypto_pcbc_module_init);
+subsys_initcall(crypto_pcbc_module_init);
module_exit(crypto_pcbc_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index d47cfc47b1b1b..0e9ce329fd477 100644
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -512,7 +512,7 @@ static void __exit pcrypt_exit(void)
crypto_unregister_template(&pcrypt_tmpl);
}
-module_init(pcrypt_init);
+subsys_initcall(pcrypt_init);
module_exit(pcrypt_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c
index 2a06874204e87..adc40298c7492 100644
--- a/crypto/poly1305_generic.c
+++ b/crypto/poly1305_generic.c
@@ -318,7 +318,7 @@ static void __exit poly1305_mod_exit(void)
crypto_unregister_shash(&poly1305_alg);
}
-module_init(poly1305_mod_init);
+subsys_initcall(poly1305_mod_init);
module_exit(poly1305_mod_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/rmd128.c b/crypto/rmd128.c
index 5f4472256e272..faf4252c4b856 100644
--- a/crypto/rmd128.c
+++ b/crypto/rmd128.c
@@ -318,7 +318,7 @@ static void __exit rmd128_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(rmd128_mod_init);
+subsys_initcall(rmd128_mod_init);
module_exit(rmd128_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/rmd160.c b/crypto/rmd160.c
index 737645344d1cb..b33309916d4fe 100644
--- a/crypto/rmd160.c
+++ b/crypto/rmd160.c
@@ -362,7 +362,7 @@ static void __exit rmd160_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(rmd160_mod_init);
+subsys_initcall(rmd160_mod_init);
module_exit(rmd160_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/rmd256.c b/crypto/rmd256.c
index 0e9d30676a013..2a643250c9a5c 100644
--- a/crypto/rmd256.c
+++ b/crypto/rmd256.c
@@ -337,7 +337,7 @@ static void __exit rmd256_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(rmd256_mod_init);
+subsys_initcall(rmd256_mod_init);
module_exit(rmd256_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/rmd320.c b/crypto/rmd320.c
index 3ae1df5bb48c8..2f062574fc8c8 100644
--- a/crypto/rmd320.c
+++ b/crypto/rmd320.c
@@ -386,7 +386,7 @@ static void __exit rmd320_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(rmd320_mod_init);
+subsys_initcall(rmd320_mod_init);
module_exit(rmd320_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/rsa.c b/crypto/rsa.c
index 4167980c243d4..4019e9af34c34 100644
--- a/crypto/rsa.c
+++ b/crypto/rsa.c
@@ -391,7 +391,7 @@ static void rsa_exit(void)
crypto_unregister_akcipher(&rsa);
}
-module_init(rsa_init);
+subsys_initcall(rsa_init);
module_exit(rsa_exit);
MODULE_ALIAS_CRYPTO("rsa");
MODULE_LICENSE("GPL");
diff --git a/crypto/salsa20_generic.c b/crypto/salsa20_generic.c
index faed244be316f..c81a44404086a 100644
--- a/crypto/salsa20_generic.c
+++ b/crypto/salsa20_generic.c
@@ -203,7 +203,7 @@ static void __exit salsa20_generic_mod_fini(void)
crypto_unregister_skcipher(&alg);
}
-module_init(salsa20_generic_mod_init);
+subsys_initcall(salsa20_generic_mod_init);
module_exit(salsa20_generic_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/seed.c b/crypto/seed.c
index c6ba8438be430..a75ac50fa4fd4 100644
--- a/crypto/seed.c
+++ b/crypto/seed.c
@@ -470,7 +470,7 @@ static void __exit seed_fini(void)
crypto_unregister_alg(&seed_alg);
}
-module_init(seed_init);
+subsys_initcall(seed_init);
module_exit(seed_fini);
MODULE_DESCRIPTION("SEED Cipher Algorithm");
diff --git a/crypto/seqiv.c b/crypto/seqiv.c
index ed1b0e9f24367..3f2fad615d265 100644
--- a/crypto/seqiv.c
+++ b/crypto/seqiv.c
@@ -211,7 +211,7 @@ static void __exit seqiv_module_exit(void)
crypto_unregister_template(&seqiv_tmpl);
}
-module_init(seqiv_module_init);
+subsys_initcall(seqiv_module_init);
module_exit(seqiv_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/serpent_generic.c b/crypto/serpent_generic.c
index 7c3382facc82e..ec4ec89ad1085 100644
--- a/crypto/serpent_generic.c
+++ b/crypto/serpent_generic.c
@@ -664,7 +664,7 @@ static void __exit serpent_mod_fini(void)
crypto_unregister_algs(srp_algs, ARRAY_SIZE(srp_algs));
}
-module_init(serpent_mod_init);
+subsys_initcall(serpent_mod_init);
module_exit(serpent_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/sha1_generic.c b/crypto/sha1_generic.c
index 2af64ef81f402..1b806d4584b2f 100644
--- a/crypto/sha1_generic.c
+++ b/crypto/sha1_generic.c
@@ -92,7 +92,7 @@ static void __exit sha1_generic_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(sha1_generic_mod_init);
+subsys_initcall(sha1_generic_mod_init);
module_exit(sha1_generic_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/sha256_generic.c b/crypto/sha256_generic.c
index 1e5ba6649e8db..5844e9a469e8a 100644
--- a/crypto/sha256_generic.c
+++ b/crypto/sha256_generic.c
@@ -301,7 +301,7 @@ static void __exit sha256_generic_mod_fini(void)
crypto_unregister_shashes(sha256_algs, ARRAY_SIZE(sha256_algs));
}
-module_init(sha256_generic_mod_init);
+subsys_initcall(sha256_generic_mod_init);
module_exit(sha256_generic_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/sha3_generic.c b/crypto/sha3_generic.c
index 7ed98367d4fbb..60fd2be609d8d 100644
--- a/crypto/sha3_generic.c
+++ b/crypto/sha3_generic.c
@@ -294,7 +294,7 @@ static void __exit sha3_generic_mod_fini(void)
crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
}
-module_init(sha3_generic_mod_init);
+subsys_initcall(sha3_generic_mod_init);
module_exit(sha3_generic_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/sha512_generic.c b/crypto/sha512_generic.c
index 4097cd555eb6b..0193ecb8ae102 100644
--- a/crypto/sha512_generic.c
+++ b/crypto/sha512_generic.c
@@ -223,7 +223,7 @@ static void __exit sha512_generic_mod_fini(void)
crypto_unregister_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
}
-module_init(sha512_generic_mod_init);
+subsys_initcall(sha512_generic_mod_init);
module_exit(sha512_generic_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/sm3_generic.c b/crypto/sm3_generic.c
index c0cf87ae7ef6d..e227bcada2a20 100644
--- a/crypto/sm3_generic.c
+++ b/crypto/sm3_generic.c
@@ -199,7 +199,7 @@ static void __exit sm3_generic_mod_fini(void)
crypto_unregister_shash(&sm3_alg);
}
-module_init(sm3_generic_mod_init);
+subsys_initcall(sm3_generic_mod_init);
module_exit(sm3_generic_mod_fini);
MODULE_LICENSE("GPL v2");
diff --git a/crypto/sm4_generic.c b/crypto/sm4_generic.c
index c18eebfd5edda..71ffb343709a5 100644
--- a/crypto/sm4_generic.c
+++ b/crypto/sm4_generic.c
@@ -237,7 +237,7 @@ static void __exit sm4_fini(void)
crypto_unregister_alg(&sm4_alg);
}
-module_init(sm4_init);
+subsys_initcall(sm4_init);
module_exit(sm4_fini);
MODULE_DESCRIPTION("SM4 Cipher Algorithm");
diff --git a/crypto/streebog_generic.c b/crypto/streebog_generic.c
index b82fc3d79aa15..63663c3bab7e9 100644
--- a/crypto/streebog_generic.c
+++ b/crypto/streebog_generic.c
@@ -1128,7 +1128,7 @@ static void __exit streebog_mod_fini(void)
crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
}
-module_init(streebog_mod_init);
+subsys_initcall(streebog_mod_init);
module_exit(streebog_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 1ea2d5007ff56..798253f05203e 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -3053,7 +3053,7 @@ static int __init tcrypt_mod_init(void)
*/
static void __exit tcrypt_mod_fini(void) { }
-module_init(tcrypt_mod_init);
+subsys_initcall(tcrypt_mod_init);
module_exit(tcrypt_mod_fini);
module_param(alg, charp, 0);
diff --git a/crypto/tea.c b/crypto/tea.c
index b70b441c7d1e7..786b589e13995 100644
--- a/crypto/tea.c
+++ b/crypto/tea.c
@@ -274,7 +274,7 @@ MODULE_ALIAS_CRYPTO("tea");
MODULE_ALIAS_CRYPTO("xtea");
MODULE_ALIAS_CRYPTO("xeta");
-module_init(tea_mod_init);
+subsys_initcall(tea_mod_init);
module_exit(tea_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/tgr192.c b/crypto/tgr192.c
index f8e1d9f9938f5..40020f8adc46a 100644
--- a/crypto/tgr192.c
+++ b/crypto/tgr192.c
@@ -677,7 +677,7 @@ MODULE_ALIAS_CRYPTO("tgr192");
MODULE_ALIAS_CRYPTO("tgr160");
MODULE_ALIAS_CRYPTO("tgr128");
-module_init(tgr192_mod_init);
+subsys_initcall(tgr192_mod_init);
module_exit(tgr192_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/twofish_generic.c b/crypto/twofish_generic.c
index 07e62433fbfb9..dbac6e2332858 100644
--- a/crypto/twofish_generic.c
+++ b/crypto/twofish_generic.c
@@ -205,7 +205,7 @@ static void __exit twofish_mod_fini(void)
crypto_unregister_alg(&alg);
}
-module_init(twofish_mod_init);
+subsys_initcall(twofish_mod_init);
module_exit(twofish_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/vmac.c b/crypto/vmac.c
index 5f436dfdfc61e..f50a85060b39f 100644
--- a/crypto/vmac.c
+++ b/crypto/vmac.c
@@ -690,7 +690,7 @@ static void __exit vmac_module_exit(void)
crypto_unregister_template(&vmac64_tmpl);
}
-module_init(vmac_module_init);
+subsys_initcall(vmac_module_init);
module_exit(vmac_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/wp512.c b/crypto/wp512.c
index 149e577fb7726..1b8e502d999ff 100644
--- a/crypto/wp512.c
+++ b/crypto/wp512.c
@@ -1168,7 +1168,7 @@ MODULE_ALIAS_CRYPTO("wp512");
MODULE_ALIAS_CRYPTO("wp384");
MODULE_ALIAS_CRYPTO("wp256");
-module_init(wp512_mod_init);
+subsys_initcall(wp512_mod_init);
module_exit(wp512_mod_fini);
MODULE_LICENSE("GPL");
diff --git a/crypto/xcbc.c b/crypto/xcbc.c
index c055f57fab11a..94ca694ef091a 100644
--- a/crypto/xcbc.c
+++ b/crypto/xcbc.c
@@ -282,7 +282,7 @@ static void __exit crypto_xcbc_module_exit(void)
crypto_unregister_template(&crypto_xcbc_tmpl);
}
-module_init(crypto_xcbc_module_init);
+subsys_initcall(crypto_xcbc_module_init);
module_exit(crypto_xcbc_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/xts.c b/crypto/xts.c
index 847f54f767897..aed11e63ca315 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -359,7 +359,7 @@ static void __exit crypto_module_exit(void)
crypto_unregister_template(&crypto_tmpl);
}
-module_init(crypto_module_init);
+subsys_initcall(crypto_module_init);
module_exit(crypto_module_exit);
MODULE_LICENSE("GPL");
diff --git a/crypto/zstd.c b/crypto/zstd.c
index 9a76b3ed8b8bc..2c04055e407f0 100644
--- a/crypto/zstd.c
+++ b/crypto/zstd.c
@@ -257,7 +257,7 @@ static void __exit zstd_mod_fini(void)
crypto_unregister_scomp(&scomp);
}
-module_init(zstd_mod_init);
+subsys_initcall(zstd_mod_init);
module_exit(zstd_mod_fini);
MODULE_LICENSE("GPL");
--
2.21.0
^ permalink raw reply related [flat|nested] 16+ messages in thread* Re: [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
` (6 preceding siblings ...)
2019-04-12 4:57 ` [PATCH v2 7/7] crypto: run initcalls for generic implementations earlier Eric Biggers
@ 2019-04-12 21:04 ` Ard Biesheuvel
2019-04-13 2:40 ` Eric Biggers
2019-04-18 14:26 ` Herbert Xu
2019-04-26 16:35 ` Horia Geanta
9 siblings, 1 reply; 16+ messages in thread
From: Ard Biesheuvel @ 2019-04-12 21:04 UTC (permalink / raw)
To: Eric Biggers; +Cc: open list:HARDWARE RANDOM NUMBER GENERATOR CORE, Herbert Xu
On Thu, 11 Apr 2019 at 22:00, Eric Biggers <ebiggers@kernel.org> wrote:
>
> Hello,
>
> In the crypto API, all implementations of each algorithm are supposed to
> produce the same results. However, testing of this is currently limited
> to the list of test vectors hardcoded for each algorithm. Although
> after recent improvements the self-tests do much more with each test
> vector, hardcoded test vectors can never cover all cases.
>
> This series improves the situation by making the self-tests
> automatically generate random test vectors using the corresponding
> generic implementation, then run them against the algorithm under test.
> This detects bugs where the implementations don't match.
>
> This has already found many bugs and inconsistencies, including an
> integer overflow bug in the x86_64 implementation of Poly1305.
>
> These new fuzz tests are behind CONFIG_CRYPTO_MANAGER_EXTRA_TESTS.
>
> Patch 1-6 are the testmgr changes themselves. Patch 7 makes the generic
> implementations be registered earlier so that they're available when
> optimized implementations are being tested, when both are built-in.
> Note that even after this, for many algorithms it's still possible to
> make the generic implementation unset or modular. Thus a missing
> generic implementation just causes the comparison tests to be skipped
> with a warning; they aren't failed.
>
> So far I've tested all generic, x86, arm, and arm64 algorithms, plus
> some PowerPC algorithms. I have not tested hardware drivers. I
> encourage people to run the tests on drivers and other architectures, as
> they will find more bugs.
>
> This can also be found in git at:
>
> URL: https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git
> Branch: cryptofuzz-vs-generic
>
> Changed since v1:
>
> - Make cryptomgr use arch_initcall(), so we don't rely on the order
> in which the object files are linked.
>
> - Show the expected error code when a test fails due to the wrong
> error code being returned.
>
> - Generate zero-length associated data more often for AEADs
> (about 1/4 of the time rather than about 1/256 of the time).
>
> - A few other minor cleanups.
>
> Eric Biggers (7):
> crypto: testmgr - expand ability to test for errors
> crypto: testmgr - identify test vectors by name rather than number
> crypto: testmgr - add helpers for fuzzing against generic
> implementation
> crypto: testmgr - fuzz hashes against their generic implementation
> crypto: testmgr - fuzz skciphers against their generic implementation
> crypto: testmgr - fuzz AEADs against their generic implementation
> crypto: run initcalls for generic implementations earlier
>
This looks alright to me, but I have to admit I did not look at every
patch in great detail. I did put it through kernelci, though, and it
built and booted fine on all systems.
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> crypto/842.c | 2 +-
> crypto/adiantum.c | 2 +-
> crypto/aegis128.c | 2 +-
> crypto/aegis128l.c | 2 +-
> crypto/aegis256.c | 2 +-
> crypto/aes_generic.c | 2 +-
> crypto/algboss.c | 8 +-
> crypto/ansi_cprng.c | 2 +-
> crypto/anubis.c | 2 +-
> crypto/arc4.c | 2 +-
> crypto/authenc.c | 2 +-
> crypto/authencesn.c | 2 +-
> crypto/blowfish_generic.c | 2 +-
> crypto/camellia_generic.c | 2 +-
> crypto/cast5_generic.c | 2 +-
> crypto/cast6_generic.c | 2 +-
> crypto/cbc.c | 2 +-
> crypto/ccm.c | 2 +-
> crypto/cfb.c | 2 +-
> crypto/chacha20poly1305.c | 2 +-
> crypto/chacha_generic.c | 2 +-
> crypto/cmac.c | 2 +-
> crypto/crc32_generic.c | 2 +-
> crypto/crc32c_generic.c | 2 +-
> crypto/crct10dif_generic.c | 2 +-
> crypto/crypto_null.c | 2 +-
> crypto/ctr.c | 2 +-
> crypto/cts.c | 2 +-
> crypto/deflate.c | 2 +-
> crypto/des_generic.c | 2 +-
> crypto/dh.c | 2 +-
> crypto/drbg.c | 2 +-
> crypto/ecb.c | 2 +-
> crypto/ecdh.c | 2 +-
> crypto/echainiv.c | 2 +-
> crypto/fcrypt.c | 2 +-
> crypto/fips.c | 2 +-
> crypto/gcm.c | 2 +-
> crypto/ghash-generic.c | 2 +-
> crypto/hmac.c | 2 +-
> crypto/jitterentropy-kcapi.c | 2 +-
> crypto/keywrap.c | 2 +-
> crypto/khazad.c | 2 +-
> crypto/lrw.c | 2 +-
> crypto/lz4.c | 2 +-
> crypto/lz4hc.c | 2 +-
> crypto/lzo-rle.c | 2 +-
> crypto/lzo.c | 2 +-
> crypto/md4.c | 2 +-
> crypto/md5.c | 2 +-
> crypto/michael_mic.c | 2 +-
> crypto/morus1280.c | 2 +-
> crypto/morus640.c | 2 +-
> crypto/nhpoly1305.c | 2 +-
> crypto/ofb.c | 2 +-
> crypto/pcbc.c | 2 +-
> crypto/pcrypt.c | 2 +-
> crypto/poly1305_generic.c | 2 +-
> crypto/rmd128.c | 2 +-
> crypto/rmd160.c | 2 +-
> crypto/rmd256.c | 2 +-
> crypto/rmd320.c | 2 +-
> crypto/rsa.c | 2 +-
> crypto/salsa20_generic.c | 2 +-
> crypto/seed.c | 2 +-
> crypto/seqiv.c | 2 +-
> crypto/serpent_generic.c | 2 +-
> crypto/sha1_generic.c | 2 +-
> crypto/sha256_generic.c | 2 +-
> crypto/sha3_generic.c | 2 +-
> crypto/sha512_generic.c | 2 +-
> crypto/sm3_generic.c | 2 +-
> crypto/sm4_generic.c | 2 +-
> crypto/streebog_generic.c | 2 +-
> crypto/tcrypt.c | 2 +-
> crypto/tea.c | 2 +-
> crypto/testmgr.c | 989 +++++++++++++++++++++++++++++++----
> crypto/testmgr.h | 22 +-
> crypto/tgr192.c | 2 +-
> crypto/twofish_generic.c | 2 +-
> crypto/vmac.c | 2 +-
> crypto/wp512.c | 2 +-
> crypto/xcbc.c | 2 +-
> crypto/xts.c | 2 +-
> crypto/zstd.c | 2 +-
> 85 files changed, 986 insertions(+), 197 deletions(-)
>
> --
> 2.21.0
>
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation
2019-04-12 21:04 ` [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Ard Biesheuvel
@ 2019-04-13 2:40 ` Eric Biggers
0 siblings, 0 replies; 16+ messages in thread
From: Eric Biggers @ 2019-04-13 2:40 UTC (permalink / raw)
To: Ard Biesheuvel
Cc: open list:HARDWARE RANDOM NUMBER GENERATOR CORE, Herbert Xu
On Fri, Apr 12, 2019 at 02:04:20PM -0700, Ard Biesheuvel wrote:
> On Thu, 11 Apr 2019 at 22:00, Eric Biggers <ebiggers@kernel.org> wrote:
> >
> > Hello,
> >
> > In the crypto API, all implementations of each algorithm are supposed to
> > produce the same results. However, testing of this is currently limited
> > to the list of test vectors hardcoded for each algorithm. Although
> > after recent improvements the self-tests do much more with each test
> > vector, hardcoded test vectors can never cover all cases.
> >
> > This series improves the situation by making the self-tests
> > automatically generate random test vectors using the corresponding
> > generic implementation, then run them against the algorithm under test.
> > This detects bugs where the implementations don't match.
> >
> > This has already found many bugs and inconsistencies, including an
> > integer overflow bug in the x86_64 implementation of Poly1305.
> >
> > These new fuzz tests are behind CONFIG_CRYPTO_MANAGER_EXTRA_TESTS.
> >
> > Patch 1-6 are the testmgr changes themselves. Patch 7 makes the generic
> > implementations be registered earlier so that they're available when
> > optimized implementations are being tested, when both are built-in.
> > Note that even after this, for many algorithms it's still possible to
> > make the generic implementation unset or modular. Thus a missing
> > generic implementation just causes the comparison tests to be skipped
> > with a warning; they aren't failed.
> >
> > So far I've tested all generic, x86, arm, and arm64 algorithms, plus
> > some PowerPC algorithms. I have not tested hardware drivers. I
> > encourage people to run the tests on drivers and other architectures, as
> > they will find more bugs.
> >
> > This can also be found in git at:
> >
> > URL: https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git
> > Branch: cryptofuzz-vs-generic
> >
> > Changed since v1:
> >
> > - Make cryptomgr use arch_initcall(), so we don't rely on the order
> > in which the object files are linked.
> >
> > - Show the expected error code when a test fails due to the wrong
> > error code being returned.
> >
> > - Generate zero-length associated data more often for AEADs
> > (about 1/4 of the time rather than about 1/256 of the time).
> >
> > - A few other minor cleanups.
> >
> > Eric Biggers (7):
> > crypto: testmgr - expand ability to test for errors
> > crypto: testmgr - identify test vectors by name rather than number
> > crypto: testmgr - add helpers for fuzzing against generic
> > implementation
> > crypto: testmgr - fuzz hashes against their generic implementation
> > crypto: testmgr - fuzz skciphers against their generic implementation
> > crypto: testmgr - fuzz AEADs against their generic implementation
> > crypto: run initcalls for generic implementations earlier
> >
>
> This looks alright to me, but I have to admit I did not look at every
> patch in great detail. I did put it through kernelci, though, and it
> built and booted fine on all systems.
>
> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
>
Thanks Ard. Note that the logs from the kernelci run do show new test failures
in two drivers:
alg: skcipher: ecb-aes-s5p encryption failed on test vector \"random: len=0 klen=32\"; expected_error=0, actual_error=-22, cfg=\"random: inplace use_final src_divs=[<flush>73.70%@alignmask+4049, 11.97%@+3977, <reimport,nosimd>3.65%@+4013, <reimport>10.68%@alignmask+12] iv_offset=4\"
alg: skcipher: cbc-aes-s5p encryption failed on test vector \"random: len=0 klen=32\"; expected_error=0, actual_error=-22, cfg=\"random: use_finup src_divs=[<reimport>100.0%@+22] dst_divs=[100.0%@+258]\"
alg: skcipher: blocksize for ctr-aes-s5p (16) doesn't match generic impl (1)
alg: skcipher: ecb-aes-rk encryption failed on test vector \"random: len=0 klen=32\"; expected_error=0, actual_error=-22, cfg=\"random: inplace use_digest src_divs=[100.0%@alignmask+2107] iv_offset=38\"
So, unlike the generic implementations, the s5p-sss driver doesn't allow empty
messages for AES-ECB and AES-CBC, and it sets cra_blocksize for AES-CTR to 16
bytes rather than 1. (It's supposed to be set to 1 for all stream ciphers.)
And the Rockchip crypto driver doesn't allow empty messages for AES-ECB.
None of these appear super important, but the tests seem to be working as
intended to find them, and they'll need to be fixed.
- Eric
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
` (7 preceding siblings ...)
2019-04-12 21:04 ` [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Ard Biesheuvel
@ 2019-04-18 14:26 ` Herbert Xu
2019-04-26 16:35 ` Horia Geanta
9 siblings, 0 replies; 16+ messages in thread
From: Herbert Xu @ 2019-04-18 14:26 UTC (permalink / raw)
To: Eric Biggers; +Cc: linux-crypto
On Thu, Apr 11, 2019 at 09:57:35PM -0700, Eric Biggers wrote:
>
> Eric Biggers (7):
> crypto: testmgr - expand ability to test for errors
> crypto: testmgr - identify test vectors by name rather than number
> crypto: testmgr - add helpers for fuzzing against generic
> implementation
> crypto: testmgr - fuzz hashes against their generic implementation
> crypto: testmgr - fuzz skciphers against their generic implementation
> crypto: testmgr - fuzz AEADs against their generic implementation
> crypto: run initcalls for generic implementations earlier
>
> crypto/842.c | 2 +-
> crypto/adiantum.c | 2 +-
> crypto/aegis128.c | 2 +-
> crypto/aegis128l.c | 2 +-
> crypto/aegis256.c | 2 +-
> crypto/aes_generic.c | 2 +-
> crypto/algboss.c | 8 +-
> crypto/ansi_cprng.c | 2 +-
> crypto/anubis.c | 2 +-
> crypto/arc4.c | 2 +-
> crypto/authenc.c | 2 +-
> crypto/authencesn.c | 2 +-
> crypto/blowfish_generic.c | 2 +-
> crypto/camellia_generic.c | 2 +-
> crypto/cast5_generic.c | 2 +-
> crypto/cast6_generic.c | 2 +-
> crypto/cbc.c | 2 +-
> crypto/ccm.c | 2 +-
> crypto/cfb.c | 2 +-
> crypto/chacha20poly1305.c | 2 +-
> crypto/chacha_generic.c | 2 +-
> crypto/cmac.c | 2 +-
> crypto/crc32_generic.c | 2 +-
> crypto/crc32c_generic.c | 2 +-
> crypto/crct10dif_generic.c | 2 +-
> crypto/crypto_null.c | 2 +-
> crypto/ctr.c | 2 +-
> crypto/cts.c | 2 +-
> crypto/deflate.c | 2 +-
> crypto/des_generic.c | 2 +-
> crypto/dh.c | 2 +-
> crypto/drbg.c | 2 +-
> crypto/ecb.c | 2 +-
> crypto/ecdh.c | 2 +-
> crypto/echainiv.c | 2 +-
> crypto/fcrypt.c | 2 +-
> crypto/fips.c | 2 +-
> crypto/gcm.c | 2 +-
> crypto/ghash-generic.c | 2 +-
> crypto/hmac.c | 2 +-
> crypto/jitterentropy-kcapi.c | 2 +-
> crypto/keywrap.c | 2 +-
> crypto/khazad.c | 2 +-
> crypto/lrw.c | 2 +-
> crypto/lz4.c | 2 +-
> crypto/lz4hc.c | 2 +-
> crypto/lzo-rle.c | 2 +-
> crypto/lzo.c | 2 +-
> crypto/md4.c | 2 +-
> crypto/md5.c | 2 +-
> crypto/michael_mic.c | 2 +-
> crypto/morus1280.c | 2 +-
> crypto/morus640.c | 2 +-
> crypto/nhpoly1305.c | 2 +-
> crypto/ofb.c | 2 +-
> crypto/pcbc.c | 2 +-
> crypto/pcrypt.c | 2 +-
> crypto/poly1305_generic.c | 2 +-
> crypto/rmd128.c | 2 +-
> crypto/rmd160.c | 2 +-
> crypto/rmd256.c | 2 +-
> crypto/rmd320.c | 2 +-
> crypto/rsa.c | 2 +-
> crypto/salsa20_generic.c | 2 +-
> crypto/seed.c | 2 +-
> crypto/seqiv.c | 2 +-
> crypto/serpent_generic.c | 2 +-
> crypto/sha1_generic.c | 2 +-
> crypto/sha256_generic.c | 2 +-
> crypto/sha3_generic.c | 2 +-
> crypto/sha512_generic.c | 2 +-
> crypto/sm3_generic.c | 2 +-
> crypto/sm4_generic.c | 2 +-
> crypto/streebog_generic.c | 2 +-
> crypto/tcrypt.c | 2 +-
> crypto/tea.c | 2 +-
> crypto/testmgr.c | 989 +++++++++++++++++++++++++++++++----
> crypto/testmgr.h | 22 +-
> crypto/tgr192.c | 2 +-
> crypto/twofish_generic.c | 2 +-
> crypto/vmac.c | 2 +-
> crypto/wp512.c | 2 +-
> crypto/xcbc.c | 2 +-
> crypto/xts.c | 2 +-
> crypto/zstd.c | 2 +-
> 85 files changed, 986 insertions(+), 197 deletions(-)
All applied. Thanks.
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation
2019-04-12 4:57 [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation Eric Biggers
` (8 preceding siblings ...)
2019-04-18 14:26 ` Herbert Xu
@ 2019-04-26 16:35 ` Horia Geanta
2019-04-26 16:54 ` Eric Biggers
9 siblings, 1 reply; 16+ messages in thread
From: Horia Geanta @ 2019-04-26 16:35 UTC (permalink / raw)
To: Eric Biggers, linux-crypto@vger.kernel.org, Herbert Xu
On 4/12/2019 8:00 AM, Eric Biggers wrote:
> So far I've tested all generic, x86, arm, and arm64 algorithms, plus
> some PowerPC algorithms. I have not tested hardware drivers. I
> encourage people to run the tests on drivers and other architectures, as
> they will find more bugs.
>
I am seeing some errors in caam hardware driver.
They are due to error code mismatch b/w generic algorithm implementation and
what caam driver returns.
Random skcipher tests for block cipher algorithms are expected to fail when
input size is not a multiple of algorithm block size.
Generic implementation returns -EINVAL.
caam driver returns the status received from HW.
This probably has to be fixed in caam driver, but I wonder if there's an
agreement on what error code should be returned in every single case (since I'll
have to do a N:M mapping b/w errors returned by HW and errors expected by crypto
API).
Should I take the generic S/W implementation as reference?
Thanks,
Horia
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation
2019-04-26 16:35 ` Horia Geanta
@ 2019-04-26 16:54 ` Eric Biggers
2019-04-27 15:24 ` Horia Geanta
0 siblings, 1 reply; 16+ messages in thread
From: Eric Biggers @ 2019-04-26 16:54 UTC (permalink / raw)
To: Horia Geanta; +Cc: linux-crypto@vger.kernel.org, Herbert Xu
Hi Horia,
On Fri, Apr 26, 2019 at 04:35:05PM +0000, Horia Geanta wrote:
> On 4/12/2019 8:00 AM, Eric Biggers wrote:
> > So far I've tested all generic, x86, arm, and arm64 algorithms, plus
> > some PowerPC algorithms. I have not tested hardware drivers. I
> > encourage people to run the tests on drivers and other architectures, as
> > they will find more bugs.
> >
> I am seeing some errors in caam hardware driver.
> They are due to error code mismatch b/w generic algorithm implementation and
> what caam driver returns.
>
> Random skcipher tests for block cipher algorithms are expected to fail when
> input size is not a multiple of algorithm block size.
> Generic implementation returns -EINVAL.
> caam driver returns the status received from HW.
>
> This probably has to be fixed in caam driver, but I wonder if there's an
> agreement on what error code should be returned in every single case (since I'll
> have to do a N:M mapping b/w errors returned by HW and errors expected by crypto
> API).
> Should I take the generic S/W implementation as reference?
>
> Thanks,
> Horia
Yes, use the generic driver as a reference. I don't understand why you're
saying there are so many cases to handle, though. The only error cases I'd
expect to actually be encountered during the tests are invalid input lengths and
invalid key lengths, where you should return -EINVAL. There may be other errors
your driver could theoretically produce, but I wouldn't expect them to be
encountered during the tests unless there are testmgr, driver, or hardware bugs.
But remember you must always return a -errno code, not a driver-specific code.
- Eric
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation
2019-04-26 16:54 ` Eric Biggers
@ 2019-04-27 15:24 ` Horia Geanta
2019-04-27 17:02 ` Eric Biggers
0 siblings, 1 reply; 16+ messages in thread
From: Horia Geanta @ 2019-04-27 15:24 UTC (permalink / raw)
To: Eric Biggers; +Cc: linux-crypto@vger.kernel.org, Herbert Xu
On 4/26/2019 7:54 PM, Eric Biggers wrote:
> Hi Horia,
>
> On Fri, Apr 26, 2019 at 04:35:05PM +0000, Horia Geanta wrote:
>> On 4/12/2019 8:00 AM, Eric Biggers wrote:
>>> So far I've tested all generic, x86, arm, and arm64 algorithms, plus
>>> some PowerPC algorithms. I have not tested hardware drivers. I
>>> encourage people to run the tests on drivers and other architectures, as
>>> they will find more bugs.
>>>
>> I am seeing some errors in caam hardware driver.
>> They are due to error code mismatch b/w generic algorithm implementation and
>> what caam driver returns.
>>
>> Random skcipher tests for block cipher algorithms are expected to fail when
>> input size is not a multiple of algorithm block size.
>> Generic implementation returns -EINVAL.
>> caam driver returns the status received from HW.
>>
>> This probably has to be fixed in caam driver, but I wonder if there's an
>> agreement on what error code should be returned in every single case (since I'll
>> have to do a N:M mapping b/w errors returned by HW and errors expected by crypto
>> API).
>> Should I take the generic S/W implementation as reference?
>>
>> Thanks,
>> Horia
>
> Yes, use the generic driver as a reference. I don't understand why you're
> saying there are so many cases to handle, though. The only error cases I'd
> expect to actually be encountered during the tests are invalid input lengths and
> invalid key lengths, where you should return -EINVAL. There may be other errors
There's at least one more in testmgr: -EBADMSG.
> your driver could theoretically produce, but I wouldn't expect them to be
> encountered during the tests unless there are testmgr, driver, or hardware bugs.
>
Is the error code matching a crypto API requirement or a testmgr requirement?
I think testmgr doesn't cover all possible failures. Thus if somebody wants to
make sure the implementation is _fully_ compliant (and not only passing testmgr
tests), a lot of effort will be required.
> But remember you must always return a -errno code, not a driver-specific code.
>
Correct, I'll fix this.
Thanks,
Horia
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation
2019-04-27 15:24 ` Horia Geanta
@ 2019-04-27 17:02 ` Eric Biggers
2019-05-02 13:19 ` Horia Geanta
0 siblings, 1 reply; 16+ messages in thread
From: Eric Biggers @ 2019-04-27 17:02 UTC (permalink / raw)
To: Horia Geanta; +Cc: linux-crypto@vger.kernel.org, Herbert Xu
On Sat, Apr 27, 2019 at 03:24:38PM +0000, Horia Geanta wrote:
> On 4/26/2019 7:54 PM, Eric Biggers wrote:
> > Hi Horia,
> >
> > On Fri, Apr 26, 2019 at 04:35:05PM +0000, Horia Geanta wrote:
> >> On 4/12/2019 8:00 AM, Eric Biggers wrote:
> >>> So far I've tested all generic, x86, arm, and arm64 algorithms, plus
> >>> some PowerPC algorithms. I have not tested hardware drivers. I
> >>> encourage people to run the tests on drivers and other architectures, as
> >>> they will find more bugs.
> >>>
> >> I am seeing some errors in caam hardware driver.
> >> They are due to error code mismatch b/w generic algorithm implementation and
> >> what caam driver returns.
> >>
> >> Random skcipher tests for block cipher algorithms are expected to fail when
> >> input size is not a multiple of algorithm block size.
> >> Generic implementation returns -EINVAL.
> >> caam driver returns the status received from HW.
> >>
> >> This probably has to be fixed in caam driver, but I wonder if there's an
> >> agreement on what error code should be returned in every single case (since I'll
> >> have to do a N:M mapping b/w errors returned by HW and errors expected by crypto
> >> API).
> >> Should I take the generic S/W implementation as reference?
> >>
> >> Thanks,
> >> Horia
> >
> > Yes, use the generic driver as a reference. I don't understand why you're
> > saying there are so many cases to handle, though. The only error cases I'd
> > expect to actually be encountered during the tests are invalid input lengths and
> > invalid key lengths, where you should return -EINVAL. There may be other errors
> There's at least one more in testmgr: -EBADMSG.
AEADs must return -EBADMSG when the authentication tag is wrong, but you said it
was an skcipher algorithm. Which algorithm are you talking about, exactly?
>
> > your driver could theoretically produce, but I wouldn't expect them to be
> > encountered during the tests unless there are testmgr, driver, or hardware bugs.
> >
> Is the error code matching a crypto API requirement or a testmgr requirement?
>
> I think testmgr doesn't cover all possible failures. Thus if somebody wants to
> make sure the implementation is _fully_ compliant (and not only passing testmgr
> tests), a lot of effort will be required.
>
Everything testmgr tests for is an "API requirement". There are also API
requirements that testmgr doen't yet test for, e.g. for skciphers that the
source data is not modified unless it coincides with the destination data.
However with regards to failures, as I see it the only failures which *must* be
handled consistently are those that apply to every implementation. I think this
only includes cases where the input is bad, e.g. invalid key or message length,
or authentication tag mismatch. If you also have implementation specific
failures, e.g. your hardware randomly stopped working or something, then for
them you may choose appropriate error codes from errno.h.
> > But remember you must always return a -errno code, not a driver-specific code.
> >
> Correct, I'll fix this.
>
> Thanks,
> Horia
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 0/7] crypto: fuzz algorithms against their generic implementation
2019-04-27 17:02 ` Eric Biggers
@ 2019-05-02 13:19 ` Horia Geanta
0 siblings, 0 replies; 16+ messages in thread
From: Horia Geanta @ 2019-05-02 13:19 UTC (permalink / raw)
To: Eric Biggers; +Cc: linux-crypto@vger.kernel.org, Herbert Xu
On 4/27/2019 8:03 PM, Eric Biggers wrote:
> On Sat, Apr 27, 2019 at 03:24:38PM +0000, Horia Geanta wrote:
>> On 4/26/2019 7:54 PM, Eric Biggers wrote:
>>> Hi Horia,
>>>
>>> On Fri, Apr 26, 2019 at 04:35:05PM +0000, Horia Geanta wrote:
>>>> On 4/12/2019 8:00 AM, Eric Biggers wrote:
>>>>> So far I've tested all generic, x86, arm, and arm64 algorithms, plus
>>>>> some PowerPC algorithms. I have not tested hardware drivers. I
>>>>> encourage people to run the tests on drivers and other architectures, as
>>>>> they will find more bugs.
>>>>>
>>>> I am seeing some errors in caam hardware driver.
>>>> They are due to error code mismatch b/w generic algorithm implementation and
>>>> what caam driver returns.
>>>>
>>>> Random skcipher tests for block cipher algorithms are expected to fail when
>>>> input size is not a multiple of algorithm block size.
>>>> Generic implementation returns -EINVAL.
>>>> caam driver returns the status received from HW.
>>>>
>>>> This probably has to be fixed in caam driver, but I wonder if there's an
>>>> agreement on what error code should be returned in every single case (since I'll
>>>> have to do a N:M mapping b/w errors returned by HW and errors expected by crypto
>>>> API).
>>>> Should I take the generic S/W implementation as reference?
>>>>
>>>> Thanks,
>>>> Horia
>>>
>>> Yes, use the generic driver as a reference. I don't understand why you're
>>> saying there are so many cases to handle, though. The only error cases I'd
>>> expect to actually be encountered during the tests are invalid input lengths and
>>> invalid key lengths, where you should return -EINVAL. There may be other errors
>> There's at least one more in testmgr: -EBADMSG.
>
> AEADs must return -EBADMSG when the authentication tag is wrong, but you said it
> was an skcipher algorithm. Which algorithm are you talking about, exactly?
>
The context in which I started the discussion was indeed skcipher failure.
However, now I am trying to make sure all types of algorithm implementations are
returning the expected error codes.
>>
>>> your driver could theoretically produce, but I wouldn't expect them to be
>>> encountered during the tests unless there are testmgr, driver, or hardware bugs.
>>>
>> Is the error code matching a crypto API requirement or a testmgr requirement?
>>
>> I think testmgr doesn't cover all possible failures. Thus if somebody wants to
>> make sure the implementation is _fully_ compliant (and not only passing testmgr
>> tests), a lot of effort will be required.
>>
>
> Everything testmgr tests for is an "API requirement". There are also API
> requirements that testmgr doen't yet test for, e.g. for skciphers that the
> source data is not modified unless it coincides with the destination data.
>
> However with regards to failures, as I see it the only failures which *must* be
> handled consistently are those that apply to every implementation. I think this
> only includes cases where the input is bad, e.g. invalid key or message length,
> or authentication tag mismatch. If you also have implementation specific
Ok, the list is not as long as I suspected.
> failures, e.g. your hardware randomly stopped working or something, then for
> them you may choose appropriate error codes from errno.h.
>
This makes sense.
Thanks,
Horia
^ permalink raw reply [flat|nested] 16+ messages in thread