diff options
| -rw-r--r-- | crypto/tcrypt.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index ac9e4d2..dd3a0f8 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -719,6 +719,207 @@ out: crypto_free_ahash(tfm); } +static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret) +{ + if (ret == -EINPROGRESS || ret == -EBUSY) { + struct tcrypt_result *tr = req->base.data; + + ret = wait_for_completion_interruptible(&tr->completion); + if (!ret) + ret = tr->err; + INIT_COMPLETION(tr->completion); + } + + return ret; +} + +static int test_acipher_jiffies(struct ablkcipher_request *req, int enc, + int blen, int sec) +{ + unsigned long start, end; + int bcount; + int ret; + + for (start = jiffies, end = start + sec * HZ, bcount = 0; + time_before(jiffies, end); bcount++) { + if (enc) + ret = do_one_acipher_op(req, + crypto_ablkcipher_encrypt(req)); + else + ret = do_one_acipher_op(req, + crypto_ablkcipher_decrypt(req)); + + if (ret) + return ret; + } + + pr_cont("%d operations in %d seconds (%ld bytes)\n", + bcount, sec, (long)bcount * blen); + return 0; +} + +static int test_acipher_cycles(struct ablkcipher_request *req, int enc, + int blen) +{ + unsigned long cycles = 0; + int ret = 0; + int i; + + /* Warm-up run. */ + for (i = 0; i < 4; i++) { + if (enc) + ret = do_one_acipher_op(req, + crypto_ablkcipher_encrypt(req)); + else + ret = do_one_acipher_op(req, + crypto_ablkcipher_decrypt(req)); + + if (ret) + goto out; + } + + /* The real thing. */ + for (i = 0; i < 8; i++) { + cycles_t start, end; + + start = get_cycles(); + if (enc) + ret = do_one_acipher_op(req, + crypto_ablkcipher_encrypt(req)); + else + ret = do_one_acipher_op(req, + crypto_ablkcipher_decrypt(req)); + end = get_cycles(); + + if (ret) + goto out; + + cycles += end - start; + } + +out: + if (ret == 0) + pr_cont("1 operation in %lu cycles (%d bytes)\n", + (cycles + 4) / 8, blen); + + return ret; +} + +static void test_acipher_speed(const char *algo, int enc, unsigned int sec, + struct cipher_speed_template *template, + unsigned int tcount, u8 *keysize) +{ + unsigned int ret, i, j, iv_len; + struct tcrypt_result tresult; + const char *key; + char iv[128]; + struct ablkcipher_request *req; + struct crypto_ablkcipher *tfm; + const char *e; + u32 *b_size; + + if (enc == ENCRYPT) + e = "encryption"; + else + e = "decryption"; + + pr_info("\ntesting speed of async %s %s\n", algo, e); + + init_completion(&tresult.completion); + + tfm = crypto_alloc_ablkcipher(algo, 0, 0); + + if (IS_ERR(tfm)) { + pr_err("failed to load transform for %s: %ld\n", algo, + PTR_ERR(tfm)); + return; + } + + req = ablkcipher_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); + + i = 0; + do { + b_size = block_sizes; + + do { + struct scatterlist sg[TVMEMSIZE]; + + if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) { + pr_err("template (%u) too big for " + "tvmem (%lu)\n", *keysize + *b_size, + TVMEMSIZE * PAGE_SIZE); + goto out_free_req; + } + + pr_info("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; + } + } + + crypto_ablkcipher_clear_flags(tfm, ~0); + + ret = crypto_ablkcipher_setkey(tfm, key, *keysize); + if (ret) { + pr_err("setkey() failed flags=%x\n", + crypto_ablkcipher_get_flags(tfm)); + goto out_free_req; + } + + 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_ablkcipher_ivsize(tfm); + if (iv_len) + memset(&iv, 0xff, iv_len); + + ablkcipher_request_set_crypt(req, sg, sg, *b_size, iv); + + if (sec) + ret = test_acipher_jiffies(req, enc, + *b_size, sec); + else + ret = test_acipher_cycles(req, enc, + *b_size); + + if (ret) { + pr_err("%s() failed flags=%x\n", e, + crypto_ablkcipher_get_flags(tfm)); + break; + } + b_size++; + i++; + } while (*b_size); + keysize++; + } while (*keysize); + +out_free_req: + ablkcipher_request_free(req); +out: + crypto_free_ablkcipher(tfm); +} + static void test_available(void) { char **name = check; @@ -1243,6 +1444,55 @@ static int do_test(int m) case 499: break; + case 500: + test_acipher_speed("ecb(aes)", ENCRYPT, sec, NULL, 0, + speed_template_16_24_32); + test_acipher_speed("ecb(aes)", DECRYPT, sec, NULL, 0, + speed_template_16_24_32); + test_acipher_speed("cbc(aes)", ENCRYPT, sec, NULL, 0, + speed_template_16_24_32); + test_acipher_speed("cbc(aes)", DECRYPT, sec, NULL, 0, + speed_template_16_24_32); + test_acipher_speed("lrw(aes)", ENCRYPT, sec, NULL, 0, + speed_template_32_40_48); + test_acipher_speed("lrw(aes)", DECRYPT, sec, NULL, 0, + speed_template_32_40_48); + test_acipher_speed("xts(aes)", ENCRYPT, sec, NULL, 0, + speed_template_32_48_64); + test_acipher_speed("xts(aes)", DECRYPT, sec, NULL, 0, + speed_template_32_48_64); + test_acipher_speed("ctr(aes)", ENCRYPT, sec, NULL, 0, + speed_template_16_24_32); + test_acipher_speed("ctr(aes)", DECRYPT, sec, NULL, 0, + speed_template_16_24_32); + break; + + case 501: + test_acipher_speed("ecb(des3_ede)", ENCRYPT, sec, + des3_speed_template, DES3_SPEED_VECTORS, + speed_template_24); + test_acipher_speed("ecb(des3_ede)", DECRYPT, sec, + des3_speed_template, DES3_SPEED_VECTORS, + speed_template_24); + test_acipher_speed("cbc(des3_ede)", ENCRYPT, sec, + des3_speed_template, DES3_SPEED_VECTORS, + speed_template_24); + test_acipher_speed("cbc(des3_ede)", DECRYPT, sec, + des3_speed_template, DES3_SPEED_VECTORS, + speed_template_24); + break; + + case 502: + test_acipher_speed("ecb(des)", ENCRYPT, sec, NULL, 0, + speed_template_8); + test_acipher_speed("ecb(des)", DECRYPT, sec, NULL, 0, + speed_template_8); + test_acipher_speed("cbc(des)", ENCRYPT, sec, NULL, 0, + speed_template_8); + test_acipher_speed("cbc(des)", DECRYPT, sec, NULL, 0, + speed_template_8); + break; + case 1000: test_available(); break; |
