crypto: tcrypt - Use skcipher
This patch converts tcrypt to use the new skcipher interface as
opposed to ablkcipher/blkcipher.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 8a91dc3..68064fc 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -24,6 +24,7 @@
#include <crypto/aead.h>
#include <crypto/hash.h>
+#include <crypto/skcipher.h>
#include <linux/err.h>
#include <linux/fips.h>
#include <linux/init.h>
@@ -92,76 +93,6 @@
complete(&res->completion);
}
-static int test_cipher_jiffies(struct blkcipher_desc *desc, int enc,
- struct scatterlist *sg, int blen, int secs)
-{
- unsigned long start, end;
- int bcount;
- int ret;
-
- for (start = jiffies, end = start + secs * HZ, bcount = 0;
- time_before(jiffies, end); bcount++) {
- if (enc)
- ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
- else
- ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
-
- if (ret)
- return ret;
- }
-
- printk("%d operations in %d seconds (%ld bytes)\n",
- bcount, secs, (long)bcount * blen);
- return 0;
-}
-
-static int test_cipher_cycles(struct blkcipher_desc *desc, int enc,
- struct scatterlist *sg, int blen)
-{
- unsigned long cycles = 0;
- int ret = 0;
- int i;
-
- local_irq_disable();
-
- /* Warm-up run. */
- for (i = 0; i < 4; i++) {
- if (enc)
- ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
- else
- ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
-
- if (ret)
- goto out;
- }
-
- /* The real thing. */
- for (i = 0; i < 8; i++) {
- cycles_t start, end;
-
- start = get_cycles();
- if (enc)
- ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
- else
- ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
- end = get_cycles();
-
- if (ret)
- goto out;
-
- cycles += end - start;
- }
-
-out:
- local_irq_enable();
-
- if (ret == 0)
- printk("1 operation in %lu cycles (%d bytes)\n",
- (cycles + 4) / 8, blen);
-
- return ret;
-}
-
static inline int do_one_aead_op(struct aead_request *req, int ret)
{
if (ret == -EINPROGRESS || ret == -EBUSY) {
@@ -455,106 +386,6 @@
return;
}
-static void test_cipher_speed(const char *algo, int enc, unsigned int secs,
- struct cipher_speed_template *template,
- unsigned int tcount, u8 *keysize)
-{
- unsigned int ret, i, j, iv_len;
- const char *key;
- char iv[128];
- struct crypto_blkcipher *tfm;
- struct blkcipher_desc desc;
- const char *e;
- u32 *b_size;
-
- if (enc == ENCRYPT)
- e = "encryption";
- else
- e = "decryption";
-
- tfm = crypto_alloc_blkcipher(algo, 0, CRYPTO_ALG_ASYNC);
-
- if (IS_ERR(tfm)) {
- printk("failed to load transform for %s: %ld\n", algo,
- PTR_ERR(tfm));
- return;
- }
- desc.tfm = tfm;
- desc.flags = 0;
-
- printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo,
- get_driver_name(crypto_blkcipher, tfm), e);
-
- i = 0;
- do {
-
- b_size = block_sizes;
- do {
- struct scatterlist sg[TVMEMSIZE];
-
- if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) {
- printk("template (%u) too big for "
- "tvmem (%lu)\n", *keysize + *b_size,
- TVMEMSIZE * PAGE_SIZE);
- goto out;
- }
-
- printk("test %u (%d bit key, %d byte blocks): ", i,
- *keysize * 8, *b_size);
-
- memset(tvmem[0], 0xff, PAGE_SIZE);
-
- /* set key, plain text and IV */
- key = tvmem[0];
- for (j = 0; j < tcount; j++) {
- if (template[j].klen == *keysize) {
- key = template[j].key;
- break;
- }
- }
-
- ret = crypto_blkcipher_setkey(tfm, key, *keysize);
- if (ret) {
- printk("setkey() failed flags=%x\n",
- crypto_blkcipher_get_flags(tfm));
- goto out;
- }
-
- sg_init_table(sg, TVMEMSIZE);
- sg_set_buf(sg, tvmem[0] + *keysize,
- PAGE_SIZE - *keysize);
- for (j = 1; j < TVMEMSIZE; j++) {
- sg_set_buf(sg + j, tvmem[j], PAGE_SIZE);
- memset (tvmem[j], 0xff, PAGE_SIZE);
- }
-
- iv_len = crypto_blkcipher_ivsize(tfm);
- if (iv_len) {
- memset(&iv, 0xff, iv_len);
- crypto_blkcipher_set_iv(tfm, iv, iv_len);
- }
-
- if (secs)
- ret = test_cipher_jiffies(&desc, enc, sg,
- *b_size, secs);
- else
- ret = test_cipher_cycles(&desc, enc, sg,
- *b_size);
-
- if (ret) {
- printk("%s() failed flags=%x\n", e, desc.flags);
- break;
- }
- b_size++;
- i++;
- } while (*b_size);
- keysize++;
- } while (*keysize);
-
-out:
- crypto_free_blkcipher(tfm);
-}
-
static void test_hash_sg_init(struct scatterlist *sg)
{
int i;
@@ -932,7 +763,7 @@
return test_ahash_speed_common(algo, secs, speed, CRYPTO_ALG_ASYNC);
}
-static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret)
+static inline int do_one_acipher_op(struct skcipher_request *req, int ret)
{
if (ret == -EINPROGRESS || ret == -EBUSY) {
struct tcrypt_result *tr = req->base.data;
@@ -945,7 +776,7 @@
return ret;
}
-static int test_acipher_jiffies(struct ablkcipher_request *req, int enc,
+static int test_acipher_jiffies(struct skcipher_request *req, int enc,
int blen, int secs)
{
unsigned long start, end;
@@ -956,10 +787,10 @@
time_before(jiffies, end); bcount++) {
if (enc)
ret = do_one_acipher_op(req,
- crypto_ablkcipher_encrypt(req));
+ crypto_skcipher_encrypt(req));
else
ret = do_one_acipher_op(req,
- crypto_ablkcipher_decrypt(req));
+ crypto_skcipher_decrypt(req));
if (ret)
return ret;
@@ -970,7 +801,7 @@
return 0;
}
-static int test_acipher_cycles(struct ablkcipher_request *req, int enc,
+static int test_acipher_cycles(struct skcipher_request *req, int enc,
int blen)
{
unsigned long cycles = 0;
@@ -981,10 +812,10 @@
for (i = 0; i < 4; i++) {
if (enc)
ret = do_one_acipher_op(req,
- crypto_ablkcipher_encrypt(req));
+ crypto_skcipher_encrypt(req));
else
ret = do_one_acipher_op(req,
- crypto_ablkcipher_decrypt(req));
+ crypto_skcipher_decrypt(req));
if (ret)
goto out;
@@ -997,10 +828,10 @@
start = get_cycles();
if (enc)
ret = do_one_acipher_op(req,
- crypto_ablkcipher_encrypt(req));
+ crypto_skcipher_encrypt(req));
else
ret = do_one_acipher_op(req,
- crypto_ablkcipher_decrypt(req));
+ crypto_skcipher_decrypt(req));
end = get_cycles();
if (ret)
@@ -1017,16 +848,16 @@
return ret;
}
-static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
- struct cipher_speed_template *template,
- unsigned int tcount, u8 *keysize)
+static void test_skcipher_speed(const char *algo, int enc, unsigned int secs,
+ struct cipher_speed_template *template,
+ unsigned int tcount, u8 *keysize, bool async)
{
unsigned int ret, i, j, k, iv_len;
struct tcrypt_result tresult;
const char *key;
char iv[128];
- struct ablkcipher_request *req;
- struct crypto_ablkcipher *tfm;
+ struct skcipher_request *req;
+ struct crypto_skcipher *tfm;
const char *e;
u32 *b_size;
@@ -1037,7 +868,7 @@
init_completion(&tresult.completion);
- tfm = crypto_alloc_ablkcipher(algo, 0, 0);
+ tfm = crypto_alloc_skcipher(algo, 0, async ? 0 : CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm)) {
pr_err("failed to load transform for %s: %ld\n", algo,
@@ -1046,17 +877,17 @@
}
pr_info("\ntesting speed of async %s (%s) %s\n", algo,
- get_driver_name(crypto_ablkcipher, tfm), e);
+ get_driver_name(crypto_skcipher, tfm), e);
- req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
+ req = skcipher_request_alloc(tfm, GFP_KERNEL);
if (!req) {
pr_err("tcrypt: skcipher: Failed to allocate request for %s\n",
algo);
goto out;
}
- ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
- tcrypt_complete, &tresult);
+ skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ tcrypt_complete, &tresult);
i = 0;
do {
@@ -1086,12 +917,12 @@
}
}
- crypto_ablkcipher_clear_flags(tfm, ~0);
+ crypto_skcipher_clear_flags(tfm, ~0);
- ret = crypto_ablkcipher_setkey(tfm, key, *keysize);
+ ret = crypto_skcipher_setkey(tfm, key, *keysize);
if (ret) {
pr_err("setkey() failed flags=%x\n",
- crypto_ablkcipher_get_flags(tfm));
+ crypto_skcipher_get_flags(tfm));
goto out_free_req;
}
@@ -1115,11 +946,11 @@
sg_set_buf(sg, tvmem[0] + *keysize, *b_size);
}
- iv_len = crypto_ablkcipher_ivsize(tfm);
+ iv_len = crypto_skcipher_ivsize(tfm);
if (iv_len)
memset(&iv, 0xff, iv_len);
- ablkcipher_request_set_crypt(req, sg, sg, *b_size, iv);
+ skcipher_request_set_crypt(req, sg, sg, *b_size, iv);
if (secs)
ret = test_acipher_jiffies(req, enc,
@@ -1130,7 +961,7 @@
if (ret) {
pr_err("%s() failed flags=%x\n", e,
- crypto_ablkcipher_get_flags(tfm));
+ crypto_skcipher_get_flags(tfm));
break;
}
b_size++;
@@ -1140,9 +971,25 @@
} while (*keysize);
out_free_req:
- ablkcipher_request_free(req);
+ skcipher_request_free(req);
out:
- crypto_free_ablkcipher(tfm);
+ crypto_free_skcipher(tfm);
+}
+
+static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
+ struct cipher_speed_template *template,
+ unsigned int tcount, u8 *keysize)
+{
+ return test_skcipher_speed(algo, enc, secs, template, tcount, keysize,
+ true);
+}
+
+static void test_cipher_speed(const char *algo, int enc, unsigned int secs,
+ struct cipher_speed_template *template,
+ unsigned int tcount, u8 *keysize)
+{
+ return test_skcipher_speed(algo, enc, secs, template, tcount, keysize,
+ false);
}
static void test_available(void)