diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/tcrypt.c | 437 |
1 files changed, 378 insertions, 59 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index d617c19..58e3344 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -80,6 +80,66 @@ static char *check[] = { NULL }; +static u32 block_sizes[] = { 16, 64, 256, 1024, 8192, 0 }; +static u32 aead_sizes[] = { 16, 64, 256, 512, 1024, 2048, 4096, 8192, 0 }; + +#define XBUFSIZE 8 +#define MAX_IVLEN 32 + +static int testmgr_alloc_buf(char *buf[XBUFSIZE]) +{ + int i; + + for (i = 0; i < XBUFSIZE; i++) { + buf[i] = (void *)__get_free_page(GFP_KERNEL); + if (!buf[i]) + goto err_free_buf; + } + + return 0; + +err_free_buf: + while (i-- > 0) + free_page((unsigned long)buf[i]); + + return -ENOMEM; +} + +static void testmgr_free_buf(char *buf[XBUFSIZE]) +{ + int i; + + for (i = 0; i < XBUFSIZE; i++) + free_page((unsigned long)buf[i]); +} + +static void sg_init_aead(struct scatterlist *sg, char *xbuf[XBUFSIZE], + unsigned int buflen, const void *assoc, + unsigned int aad_size) +{ + int np = (buflen + PAGE_SIZE - 1)/PAGE_SIZE; + int k, rem; + + if (np > XBUFSIZE) { + rem = PAGE_SIZE; + np = XBUFSIZE; + } else { + rem = buflen % PAGE_SIZE; + } + + sg_init_table(sg, np + 1); + + sg_set_buf(&sg[0], assoc, aad_size); + + if (rem) + np--; + for (k = 0; k < np; k++) + sg_set_buf(&sg[k + 1], xbuf[k], PAGE_SIZE); + + if (rem) + sg_set_buf(&sg[k + 1], xbuf[k], rem); +} + static inline int do_one_aead_op(struct aead_request *req, int ret) { struct crypto_wait *wait = req->base.data; @@ -87,8 +147,44 @@ static inline int do_one_aead_op(struct aead_request *req, int ret) return crypto_wait_req(ret, wait); } -static int test_aead_jiffies(struct aead_request *req, int enc, - int blen, int secs) +struct test_mb_aead_data { + struct scatterlist sg[XBUFSIZE]; + struct scatterlist sgout[XBUFSIZE]; + struct aead_request *req; + struct crypto_wait wait; + char *xbuf[XBUFSIZE]; + char *xoutbuf[XBUFSIZE]; + char *axbuf[XBUFSIZE]; +}; + +static int do_mult_aead_op(struct test_mb_aead_data *data, int enc, + u32 num_mb) +{ + int i, rc[num_mb], err = 0; + + /* Fire up a bunch of concurrent requests */ + for (i = 0; i < num_mb; i++) { + if (enc == ENCRYPT) + rc[i] = crypto_aead_encrypt(data[i].req); + else + rc[i] = crypto_aead_decrypt(data[i].req); + } + + /* Wait for all requests to finish */ + for (i = 0; i < num_mb; i++) { + rc[i] = crypto_wait_req(rc[i], &data[i].wait); + + if (rc[i]) { + pr_info("concurrent request %d error %d\n", i, rc[i]); + err = rc[i]; + } + } + + return err; +} + +static int test_mb_aead_jiffies(struct test_mb_aead_data *data, int enc, + int blen, int secs, u32 num_mb) { unsigned long start, end; int bcount; @@ -96,21 +192,18 @@ static int test_aead_jiffies(struct aead_request *req, int enc, for (start = jiffies, end = start + secs * HZ, bcount = 0; time_before(jiffies, end); bcount++) { - if (enc) - ret = do_one_aead_op(req, crypto_aead_encrypt(req)); - else - ret = do_one_aead_op(req, crypto_aead_decrypt(req)); - + ret = do_mult_aead_op(data, enc, num_mb); if (ret) return ret; } - printk("%d operations in %d seconds (%ld bytes)\n", - bcount, secs, (long)bcount * blen); + pr_cont("%d operations in %d seconds (%ld bytes)\n", + bcount * num_mb, secs, (long)bcount * blen * num_mb); return 0; } -static int test_aead_cycles(struct aead_request *req, int enc, int blen) +static int test_mb_aead_cycles(struct test_mb_aead_data *data, int enc, + int blen, u32 num_mb) { unsigned long cycles = 0; int ret = 0; @@ -118,11 +211,7 @@ static int test_aead_cycles(struct aead_request *req, int enc, int blen) /* Warm-up run. */ for (i = 0; i < 4; i++) { - if (enc) - ret = do_one_aead_op(req, crypto_aead_encrypt(req)); - else - ret = do_one_aead_op(req, crypto_aead_decrypt(req)); - + ret = do_mult_aead_op(data, enc, num_mb); if (ret) goto out; } @@ -132,10 +221,7 @@ static int test_aead_cycles(struct aead_request *req, int enc, int blen) cycles_t start, end; start = get_cycles(); - if (enc) - ret = do_one_aead_op(req, crypto_aead_encrypt(req)); - else - ret = do_one_aead_op(req, crypto_aead_decrypt(req)); + ret = do_mult_aead_op(data, enc, num_mb); end = get_cycles(); if (ret) @@ -146,70 +232,276 @@ static int test_aead_cycles(struct aead_request *req, int enc, int blen) out: if (ret == 0) - printk("1 operation in %lu cycles (%d bytes)\n", - (cycles + 4) / 8, blen); + pr_cont("1 operation in %lu cycles (%d bytes)\n", + (cycles + 4) / (8 * num_mb), blen); return ret; } -static u32 block_sizes[] = { 16, 64, 256, 1024, 8192, 0 }; -static u32 aead_sizes[] = { 16, 64, 256, 512, 1024, 2048, 4096, 8192, 0 }; +static void test_mb_aead_speed(const char *algo, int enc, int secs, + struct aead_speed_template *template, + unsigned int tcount, u8 authsize, + unsigned int aad_size, u8 *keysize, u32 num_mb) +{ + struct test_mb_aead_data *data; + struct crypto_aead *tfm; + unsigned int i, j, iv_len; + const char *key; + const char *e; + void *assoc; + u32 *b_size; + char *iv; + int ret; -#define XBUFSIZE 8 -#define MAX_IVLEN 32 -static int testmgr_alloc_buf(char *buf[XBUFSIZE]) -{ - int i; + if (aad_size >= PAGE_SIZE) { + pr_err("associate data length (%u) too big\n", aad_size); + return; + } - for (i = 0; i < XBUFSIZE; i++) { - buf[i] = (void *)__get_free_page(GFP_KERNEL); - if (!buf[i]) - goto err_free_buf; + iv = kzalloc(MAX_IVLEN, GFP_KERNEL); + if (!iv) + return; + + if (enc == ENCRYPT) + e = "encryption"; + else + e = "decryption"; + + data = kcalloc(num_mb, sizeof(*data), GFP_KERNEL); + if (!data) + goto out_free_iv; + + tfm = crypto_alloc_aead(algo, 0, 0); + if (IS_ERR(tfm)) { + pr_err("failed to load transform for %s: %ld\n", + algo, PTR_ERR(tfm)); + goto out_free_data; } - return 0; + ret = crypto_aead_setauthsize(tfm, authsize); -err_free_buf: - while (i-- > 0) - free_page((unsigned long)buf[i]); + for (i = 0; i < num_mb; ++i) + if (testmgr_alloc_buf(data[i].xbuf)) { + while (i--) + testmgr_free_buf(data[i].xbuf); + goto out_free_tfm; + } - return -ENOMEM; + for (i = 0; i < num_mb; ++i) + if (testmgr_alloc_buf(data[i].axbuf)) { + while (i--) + testmgr_free_buf(data[i].axbuf); + goto out_free_xbuf; + } + + for (i = 0; i < num_mb; ++i) + if (testmgr_alloc_buf(data[i].xoutbuf)) { + while (i--) + testmgr_free_buf(data[i].axbuf); + goto out_free_axbuf; + } + + for (i = 0; i < num_mb; ++i) { + data[i].req = aead_request_alloc(tfm, GFP_KERNEL); + if (!data[i].req) { + pr_err("alg: skcipher: Failed to allocate request for %s\n", + algo); + while (i--) + aead_request_free(data[i].req); + goto out_free_xoutbuf; + } + } + + for (i = 0; i < num_mb; ++i) { + crypto_init_wait(&data[i].wait); + aead_request_set_callback(data[i].req, + CRYPTO_TFM_REQ_MAY_BACKLOG, + crypto_req_done, &data[i].wait); + } + + pr_info("\ntesting speed of multibuffer %s (%s) %s\n", algo, + get_driver_name(crypto_aead, tfm), e); + + i = 0; + do { + b_size = aead_sizes; + do { + if (*b_size + authsize > XBUFSIZE * PAGE_SIZE) { + pr_err("template (%u) too big for bufufer (%lu)\n", + authsize + *b_size, + XBUFSIZE * PAGE_SIZE); + goto out; + } + + pr_info("test %u (%d bit key, %d byte blocks): ", i, + *keysize * 8, *b_size); + + /* Set up tfm global state, i.e. the key */ + + memset(tvmem[0], 0xff, PAGE_SIZE); + key = tvmem[0]; + for (j = 0; j < tcount; j++) { + if (template[j].klen == *keysize) { + key = template[j].key; + break; + } + } + + crypto_aead_clear_flags(tfm, ~0); + + ret = crypto_aead_setkey(tfm, key, *keysize); + if (ret) { + pr_err("setkey() failed flags=%x\n", + crypto_aead_get_flags(tfm)); + goto out; + } + + iv_len = crypto_aead_ivsize(tfm); + if (iv_len) + memset(iv, 0xff, iv_len); + + /* Now setup per request stuff, i.e. buffers */ + + for (j = 0; j < num_mb; ++j) { + struct test_mb_aead_data *cur = &data[j]; + + assoc = cur->axbuf[0]; + memset(assoc, 0xff, aad_size); + + sg_init_aead(cur->sg, cur->xbuf, + *b_size + (enc ? 0 : authsize), + assoc, aad_size); + + sg_init_aead(cur->sgout, cur->xoutbuf, + *b_size + (enc ? authsize : 0), + assoc, aad_size); + + aead_request_set_ad(cur->req, aad_size); + + if (!enc) { + + aead_request_set_crypt(cur->req, + cur->sgout, + cur->sg, + *b_size, iv); + ret = crypto_aead_encrypt(cur->req); + ret = do_one_aead_op(cur->req, ret); + + if (ret) { + pr_err("calculating auth failed failed (%d)\n", + ret); + break; + } + } + + aead_request_set_crypt(cur->req, cur->sg, + cur->sgout, *b_size + + (enc ? 0 : authsize), + iv); + + } + + if (secs) + ret = test_mb_aead_jiffies(data, enc, *b_size, + secs, num_mb); + else + ret = test_mb_aead_cycles(data, enc, *b_size, + num_mb); + + if (ret) { + pr_err("%s() failed return code=%d\n", e, ret); + break; + } + b_size++; + i++; + } while (*b_size); + keysize++; + } while (*keysize); + +out: + for (i = 0; i < num_mb; ++i) + aead_request_free(data[i].req); +out_free_xoutbuf: + for (i = 0; i < num_mb; ++i) + testmgr_free_buf(data[i].xoutbuf); +out_free_axbuf: + for (i = 0; i < num_mb; ++i) + testmgr_free_buf(data[i].axbuf); +out_free_xbuf: + for (i = 0; i < num_mb; ++i) + testmgr_free_buf(data[i].xbuf); +out_free_tfm: + crypto_free_aead(tfm); +out_free_data: + kfree(data); +out_free_iv: + kfree(iv); } -static void testmgr_free_buf(char *buf[XBUFSIZE]) +static int test_aead_jiffies(struct aead_request *req, int enc, + int blen, int secs) { - int i; + unsigned long start, end; + int bcount; + int ret; - for (i = 0; i < XBUFSIZE; i++) - free_page((unsigned long)buf[i]); + for (start = jiffies, end = start + secs * HZ, bcount = 0; + time_before(jiffies, end); bcount++) { + if (enc) + ret = do_one_aead_op(req, crypto_aead_encrypt(req)); + else + ret = do_one_aead_op(req, crypto_aead_decrypt(req)); + + if (ret) + return ret; + } + + printk("%d operations in %d seconds (%ld bytes)\n", + bcount, secs, (long)bcount * blen); + return 0; } -static void sg_init_aead(struct scatterlist *sg, char *xbuf[XBUFSIZE], - unsigned int buflen, const void *assoc, - unsigned int aad_size) +static int test_aead_cycles(struct aead_request *req, int enc, int blen) { - int np = (buflen + PAGE_SIZE - 1)/PAGE_SIZE; - int k, rem; + unsigned long cycles = 0; + int ret = 0; + int i; - if (np > XBUFSIZE) { - rem = PAGE_SIZE; - np = XBUFSIZE; - } else { - rem = buflen % PAGE_SIZE; + /* Warm-up run. */ + for (i = 0; i < 4; i++) { + if (enc) + ret = do_one_aead_op(req, crypto_aead_encrypt(req)); + else + ret = do_one_aead_op(req, crypto_aead_decrypt(req)); + + if (ret) + goto out; } - sg_init_table(sg, np + 1); + /* The real thing. */ + for (i = 0; i < 8; i++) { + cycles_t start, end; - sg_set_buf(&sg[0], assoc, aad_size); + start = get_cycles(); + if (enc) + ret = do_one_aead_op(req, crypto_aead_encrypt(req)); + else + ret = do_one_aead_op(req, crypto_aead_decrypt(req)); + end = get_cycles(); - if (rem) - np--; - for (k = 0; k < np; k++) - sg_set_buf(&sg[k + 1], xbuf[k], PAGE_SIZE); + if (ret) + goto out; - if (rem) - sg_set_buf(&sg[k + 1], xbuf[k], rem); + cycles += end - start; + } + +out: + if (ret == 0) + printk("1 operation in %lu cycles (%d bytes)\n", + (cycles + 4) / 8, blen); + + return ret; } static void test_aead_speed(const char *algo, int enc, unsigned int secs, @@ -1912,6 +2204,33 @@ static int do_test(const char *alg, u32 type, u32 mask, int m) speed_template_32); break; + case 215: + test_mb_aead_speed("rfc4106(gcm(aes))", ENCRYPT, sec, NULL, + 0, 16, 16, aead_speed_template_20, num_mb); + test_mb_aead_speed("gcm(aes)", ENCRYPT, sec, NULL, 0, 16, 8, + speed_template_16_24_32, num_mb); + test_mb_aead_speed("rfc4106(gcm(aes))", DECRYPT, sec, NULL, + 0, 16, 16, aead_speed_template_20, num_mb); + test_mb_aead_speed("gcm(aes)", DECRYPT, sec, NULL, 0, 16, 8, + speed_template_16_24_32, num_mb); + break; + + case 216: + test_mb_aead_speed("rfc4309(ccm(aes))", ENCRYPT, sec, NULL, 0, + 16, 16, aead_speed_template_19, num_mb); + test_mb_aead_speed("rfc4309(ccm(aes))", DECRYPT, sec, NULL, 0, + 16, 16, aead_speed_template_19, num_mb); + break; + + case 217: + test_mb_aead_speed("rfc7539esp(chacha20,poly1305)", ENCRYPT, + sec, NULL, 0, 16, 8, aead_speed_template_36, + num_mb); + test_mb_aead_speed("rfc7539esp(chacha20,poly1305)", DECRYPT, + sec, NULL, 0, 16, 8, aead_speed_template_36, + num_mb); + break; + case 300: if (alg) { test_hash_speed(alg, sec, generic_hash_speed_template); |
