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https://github.com/torvalds/linux.git
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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>
This commit is contained in:
Herbert Xu
parent
2495cf25f6
commit
7166e589da
1 changed files with 44 additions and 197 deletions
241
crypto/tcrypt.c
241
crypto/tcrypt.c
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@ -24,6 +24,7 @@
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#include <crypto/aead.h>
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#include <crypto/hash.h>
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#include <crypto/skcipher.h>
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#include <linux/err.h>
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#include <linux/fips.h>
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#include <linux/init.h>
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@ -92,76 +93,6 @@ static void tcrypt_complete(struct crypto_async_request *req, int err)
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complete(&res->completion);
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}
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static int test_cipher_jiffies(struct blkcipher_desc *desc, int enc,
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struct scatterlist *sg, int blen, int secs)
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{
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unsigned long start, end;
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int bcount;
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int ret;
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for (start = jiffies, end = start + secs * HZ, bcount = 0;
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time_before(jiffies, end); bcount++) {
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if (enc)
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ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
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else
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ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
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if (ret)
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return ret;
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}
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printk("%d operations in %d seconds (%ld bytes)\n",
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bcount, secs, (long)bcount * blen);
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return 0;
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}
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static int test_cipher_cycles(struct blkcipher_desc *desc, int enc,
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struct scatterlist *sg, int blen)
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{
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unsigned long cycles = 0;
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int ret = 0;
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int i;
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local_irq_disable();
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/* Warm-up run. */
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for (i = 0; i < 4; i++) {
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if (enc)
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ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
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else
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ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
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if (ret)
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goto out;
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}
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/* The real thing. */
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for (i = 0; i < 8; i++) {
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cycles_t start, end;
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start = get_cycles();
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if (enc)
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ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
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else
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ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
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end = get_cycles();
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if (ret)
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goto out;
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cycles += end - start;
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}
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out:
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local_irq_enable();
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if (ret == 0)
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printk("1 operation in %lu cycles (%d bytes)\n",
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(cycles + 4) / 8, blen);
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return ret;
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}
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static inline int do_one_aead_op(struct aead_request *req, int ret)
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{
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if (ret == -EINPROGRESS || ret == -EBUSY) {
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@ -455,106 +386,6 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
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return;
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}
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static void test_cipher_speed(const char *algo, int enc, unsigned int secs,
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struct cipher_speed_template *template,
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unsigned int tcount, u8 *keysize)
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{
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unsigned int ret, i, j, iv_len;
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const char *key;
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char iv[128];
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struct crypto_blkcipher *tfm;
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struct blkcipher_desc desc;
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const char *e;
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u32 *b_size;
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if (enc == ENCRYPT)
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e = "encryption";
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else
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e = "decryption";
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tfm = crypto_alloc_blkcipher(algo, 0, CRYPTO_ALG_ASYNC);
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if (IS_ERR(tfm)) {
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printk("failed to load transform for %s: %ld\n", algo,
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PTR_ERR(tfm));
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return;
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}
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desc.tfm = tfm;
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desc.flags = 0;
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printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo,
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get_driver_name(crypto_blkcipher, tfm), e);
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i = 0;
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do {
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b_size = block_sizes;
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do {
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struct scatterlist sg[TVMEMSIZE];
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if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) {
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printk("template (%u) too big for "
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"tvmem (%lu)\n", *keysize + *b_size,
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TVMEMSIZE * PAGE_SIZE);
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goto out;
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}
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printk("test %u (%d bit key, %d byte blocks): ", i,
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*keysize * 8, *b_size);
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memset(tvmem[0], 0xff, PAGE_SIZE);
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/* set key, plain text and IV */
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key = tvmem[0];
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for (j = 0; j < tcount; j++) {
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if (template[j].klen == *keysize) {
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key = template[j].key;
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break;
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}
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}
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ret = crypto_blkcipher_setkey(tfm, key, *keysize);
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if (ret) {
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printk("setkey() failed flags=%x\n",
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crypto_blkcipher_get_flags(tfm));
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goto out;
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}
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sg_init_table(sg, TVMEMSIZE);
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sg_set_buf(sg, tvmem[0] + *keysize,
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PAGE_SIZE - *keysize);
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for (j = 1; j < TVMEMSIZE; j++) {
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sg_set_buf(sg + j, tvmem[j], PAGE_SIZE);
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memset (tvmem[j], 0xff, PAGE_SIZE);
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}
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iv_len = crypto_blkcipher_ivsize(tfm);
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if (iv_len) {
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memset(&iv, 0xff, iv_len);
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crypto_blkcipher_set_iv(tfm, iv, iv_len);
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}
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if (secs)
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ret = test_cipher_jiffies(&desc, enc, sg,
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*b_size, secs);
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else
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ret = test_cipher_cycles(&desc, enc, sg,
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*b_size);
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if (ret) {
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printk("%s() failed flags=%x\n", e, desc.flags);
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break;
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}
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b_size++;
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i++;
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} while (*b_size);
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keysize++;
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} while (*keysize);
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out:
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crypto_free_blkcipher(tfm);
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}
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static void test_hash_sg_init(struct scatterlist *sg)
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{
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int i;
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@ -932,7 +763,7 @@ static void test_hash_speed(const char *algo, unsigned int secs,
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return test_ahash_speed_common(algo, secs, speed, CRYPTO_ALG_ASYNC);
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}
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static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret)
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static inline int do_one_acipher_op(struct skcipher_request *req, int ret)
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{
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if (ret == -EINPROGRESS || ret == -EBUSY) {
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struct tcrypt_result *tr = req->base.data;
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@ -945,7 +776,7 @@ static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret)
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return ret;
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}
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static int test_acipher_jiffies(struct ablkcipher_request *req, int enc,
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static int test_acipher_jiffies(struct skcipher_request *req, int enc,
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int blen, int secs)
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{
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unsigned long start, end;
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@ -956,10 +787,10 @@ static int test_acipher_jiffies(struct ablkcipher_request *req, int enc,
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time_before(jiffies, end); bcount++) {
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if (enc)
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_encrypt(req));
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crypto_skcipher_encrypt(req));
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else
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_decrypt(req));
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crypto_skcipher_decrypt(req));
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if (ret)
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return ret;
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@ -970,7 +801,7 @@ static int test_acipher_jiffies(struct ablkcipher_request *req, int enc,
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return 0;
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}
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static int test_acipher_cycles(struct ablkcipher_request *req, int enc,
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static int test_acipher_cycles(struct skcipher_request *req, int enc,
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int blen)
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{
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unsigned long cycles = 0;
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@ -981,10 +812,10 @@ static int test_acipher_cycles(struct ablkcipher_request *req, int enc,
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for (i = 0; i < 4; i++) {
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if (enc)
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_encrypt(req));
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crypto_skcipher_encrypt(req));
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else
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_decrypt(req));
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crypto_skcipher_decrypt(req));
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if (ret)
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goto out;
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@ -997,10 +828,10 @@ static int test_acipher_cycles(struct ablkcipher_request *req, int enc,
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start = get_cycles();
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if (enc)
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_encrypt(req));
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crypto_skcipher_encrypt(req));
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else
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_decrypt(req));
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crypto_skcipher_decrypt(req));
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end = get_cycles();
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if (ret)
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@ -1017,16 +848,16 @@ static int test_acipher_cycles(struct ablkcipher_request *req, int enc,
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return ret;
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}
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static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
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struct cipher_speed_template *template,
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unsigned int tcount, u8 *keysize)
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static void test_skcipher_speed(const char *algo, int enc, unsigned int secs,
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struct cipher_speed_template *template,
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unsigned int tcount, u8 *keysize, bool async)
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{
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unsigned int ret, i, j, k, iv_len;
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struct tcrypt_result tresult;
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const char *key;
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char iv[128];
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struct ablkcipher_request *req;
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struct crypto_ablkcipher *tfm;
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struct skcipher_request *req;
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struct crypto_skcipher *tfm;
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const char *e;
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u32 *b_size;
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@ -1037,7 +868,7 @@ static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
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init_completion(&tresult.completion);
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tfm = crypto_alloc_ablkcipher(algo, 0, 0);
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tfm = crypto_alloc_skcipher(algo, 0, async ? 0 : CRYPTO_ALG_ASYNC);
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if (IS_ERR(tfm)) {
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pr_err("failed to load transform for %s: %ld\n", algo,
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@ -1046,17 +877,17 @@ static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
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}
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pr_info("\ntesting speed of async %s (%s) %s\n", algo,
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get_driver_name(crypto_ablkcipher, tfm), e);
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get_driver_name(crypto_skcipher, tfm), e);
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req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
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req = skcipher_request_alloc(tfm, GFP_KERNEL);
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if (!req) {
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pr_err("tcrypt: skcipher: Failed to allocate request for %s\n",
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algo);
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goto out;
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}
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ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
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tcrypt_complete, &tresult);
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skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
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tcrypt_complete, &tresult);
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i = 0;
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do {
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@ -1086,12 +917,12 @@ static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
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}
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}
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crypto_ablkcipher_clear_flags(tfm, ~0);
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crypto_skcipher_clear_flags(tfm, ~0);
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ret = crypto_ablkcipher_setkey(tfm, key, *keysize);
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ret = crypto_skcipher_setkey(tfm, key, *keysize);
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if (ret) {
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pr_err("setkey() failed flags=%x\n",
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crypto_ablkcipher_get_flags(tfm));
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crypto_skcipher_get_flags(tfm));
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goto out_free_req;
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}
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@ -1115,11 +946,11 @@ static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
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sg_set_buf(sg, tvmem[0] + *keysize, *b_size);
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}
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iv_len = crypto_ablkcipher_ivsize(tfm);
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iv_len = crypto_skcipher_ivsize(tfm);
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if (iv_len)
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memset(&iv, 0xff, iv_len);
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ablkcipher_request_set_crypt(req, sg, sg, *b_size, iv);
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skcipher_request_set_crypt(req, sg, sg, *b_size, iv);
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if (secs)
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ret = test_acipher_jiffies(req, enc,
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@ -1130,7 +961,7 @@ static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
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if (ret) {
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pr_err("%s() failed flags=%x\n", e,
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crypto_ablkcipher_get_flags(tfm));
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crypto_skcipher_get_flags(tfm));
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break;
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}
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b_size++;
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@ -1140,9 +971,25 @@ static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
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} while (*keysize);
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out_free_req:
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ablkcipher_request_free(req);
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skcipher_request_free(req);
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out:
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crypto_free_ablkcipher(tfm);
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crypto_free_skcipher(tfm);
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}
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static void test_acipher_speed(const char *algo, int enc, unsigned int secs,
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struct cipher_speed_template *template,
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unsigned int tcount, u8 *keysize)
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{
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return test_skcipher_speed(algo, enc, secs, template, tcount, keysize,
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true);
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}
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static void test_cipher_speed(const char *algo, int enc, unsigned int secs,
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struct cipher_speed_template *template,
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unsigned int tcount, u8 *keysize)
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{
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return test_skcipher_speed(algo, enc, secs, template, tcount, keysize,
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false);
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}
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static void test_available(void)
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