[EXT] [PATCH 7/8] test/crypto: add external buffer test case

[Akhil Goyal]

> Add a test case to verify crypto functionality
> with external buffer.
> 
> Signed-off-by: Gagandeep Singh <g.singh at nxp.com>
> ---
>  app/test/test_cryptodev.c | 163 ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 163 insertions(+)
> 
> diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c
> index 0b53ec0078..b4ffb4fd94 100644
> --- a/app/test/test_cryptodev.c
> +++ b/app/test/test_cryptodev.c
> @@ -2270,6 +2270,167 @@ test_AES_CBC_HMAC_SHA1_encrypt_digest(void)
>  	return TEST_SUCCESS;
>  }
> 
> +static inline void
> +ext_buf_free_callback_fn(void *addr,
> +			 void *ext_buf_ptr __rte_unused)
> +{
> +	rte_free(addr);
> +}
> +
> +static int
> +test_AES_CBC_HMAC_SHA1_encrypt_digest_ext_buffer(void)
> +{
> +	struct crypto_testsuite_params *ts_params = &testsuite_params;
> +	struct crypto_unittest_params *ut_params = &unittest_params;
> +	int status;
> +	void *buf;
> +	rte_iova_t iova;
> +	uint16_t buf_len = QUOTE_1024_BYTES;
> +	struct rte_mbuf_ext_shared_info *shinfo = NULL;
> +	struct rte_mbuf *m;
> +
> +
Extra line

> +	/* Verify the capabilities */
> +	struct rte_cryptodev_sym_capability_idx cap_idx;
> +	cap_idx.type = RTE_CRYPTO_SYM_XFORM_AUTH;
> +	cap_idx.algo.auth = RTE_CRYPTO_AUTH_SHA1_HMAC;
> +	if (rte_cryptodev_sym_capability_get(ts_params->valid_devs[0],
> +			&cap_idx) == NULL)
> +		return TEST_SKIPPED;
> +	cap_idx.type = RTE_CRYPTO_SYM_XFORM_CIPHER;
> +	cap_idx.algo.cipher = RTE_CRYPTO_CIPHER_AES_CBC;
> +	if (rte_cryptodev_sym_capability_get(ts_params->valid_devs[0],
> +			&cap_idx) == NULL)
> +		return TEST_SKIPPED;
Repeated code.

> +
> +	buf = rte_malloc(NULL, buf_len, RTE_CACHE_LINE_SIZE);
> +	if (buf == NULL)
> +		return TEST_SKIPPED;

Why skipped? It is an error if malloc is failed.

> +
> +	rte_memcpy(buf, catch_22_quote, QUOTE_512_BYTES);
> +	shinfo = rte_pktmbuf_ext_shinfo_init_helper(buf, &buf_len,
> +				ext_buf_free_callback_fn, NULL);
> +	if (unlikely(shinfo == NULL)) {
> +		rte_free(buf);
> +		return -1;
> +	}
> +	iova = rte_malloc_virt2iova(buf);
> +	m = rte_pktmbuf_alloc(ts_params->mbuf_pool);
> +	if (m == NULL)
> +		return TEST_SKIPPED;
Again, it should be TEST_FAILED

> +	rte_pktmbuf_attach_extbuf(m, buf, iova, buf_len, shinfo);
> +	rte_pktmbuf_reset_headroom(m);
> +	m->pkt_len = QUOTE_512_BYTES;
> +	m->data_len  = QUOTE_512_BYTES;
Please use proper APIs to append data and increase lengths.
 
> +	m->data_off  = 0;
Why is data off rewritten as 0?
It is modified by rte_pktmbuf_reset_headroom().

> +
> +	ut_params->ibuf = m;
> +
> +	ut_params->digest = (uint8_t *)rte_pktmbuf_append(ut_params->ibuf,
> +			DIGEST_BYTE_LENGTH_SHA1);
> +	TEST_ASSERT_NOT_NULL(ut_params->digest, "no room to append
> digest");
> +
> +	/* Setup Cipher Parameters */
> +	ut_params->cipher_xform.type = RTE_CRYPTO_SYM_XFORM_CIPHER;
> +	ut_params->cipher_xform.next = &ut_params->auth_xform;
> +
> +	ut_params->cipher_xform.cipher.algo =
> RTE_CRYPTO_CIPHER_AES_CBC;
> +	ut_params->cipher_xform.cipher.op =
> RTE_CRYPTO_CIPHER_OP_ENCRYPT;
> +	ut_params->cipher_xform.cipher.key.data = aes_cbc_key;
> +	ut_params->cipher_xform.cipher.key.length =
> CIPHER_KEY_LENGTH_AES_CBC;
> +	ut_params->cipher_xform.cipher.iv.offset = IV_OFFSET;
> +	ut_params->cipher_xform.cipher.iv.length =
> CIPHER_IV_LENGTH_AES_CBC;
> +
> +	/* Setup HMAC Parameters */
> +	ut_params->auth_xform.type = RTE_CRYPTO_SYM_XFORM_AUTH;
> +
> +	ut_params->auth_xform.next = NULL;
> +
> +	ut_params->auth_xform.auth.op = RTE_CRYPTO_AUTH_OP_GENERATE;
> +	ut_params->auth_xform.auth.algo = RTE_CRYPTO_AUTH_SHA1_HMAC;
> +	ut_params->auth_xform.auth.key.length = HMAC_KEY_LENGTH_SHA1;
> +	ut_params->auth_xform.auth.key.data = hmac_sha1_key;
> +	ut_params->auth_xform.auth.digest_length =
> DIGEST_BYTE_LENGTH_SHA1;
> +
> +	ut_params->sess = rte_cryptodev_sym_session_create(
> +			ts_params->session_mpool);
> +	TEST_ASSERT_NOT_NULL(ut_params->sess, "Session creation failed");
> +
> +	/* Create crypto session*/
> +	status = rte_cryptodev_sym_session_init(ts_params->valid_devs[0],
> +			ut_params->sess, &ut_params->cipher_xform,
> +			ts_params->session_priv_mpool);
> +
> +	if (status == -ENOTSUP)
> +		return TEST_SKIPPED;
> +
> +	TEST_ASSERT_EQUAL(status, 0, "Session init failed");
> +
> +	/* Generate crypto op data structure */
> +	ut_params->op = rte_crypto_op_alloc(ts_params->op_mpool,
> +			RTE_CRYPTO_OP_TYPE_SYMMETRIC);
> +	TEST_ASSERT_NOT_NULL(ut_params->op,
> +			"Failed to allocate symmetric crypto operation struct");
> +
> +	rte_crypto_op_attach_sym_session(ut_params->op, ut_params->sess);
> +
> +	struct rte_crypto_sym_op *sym_op = ut_params->op->sym;
> +
> +	/* set crypto operation source mbuf */
> +	sym_op->m_src = ut_params->ibuf;
> +
> +	/* Set crypto operation authentication parameters */
> +	sym_op->auth.digest.data = ut_params->digest;
> +	sym_op->auth.digest.phys_addr = rte_pktmbuf_iova_offset(
> +			ut_params->ibuf, QUOTE_512_BYTES);
> +
> +	sym_op->auth.data.offset = 0;
> +	sym_op->auth.data.length = QUOTE_512_BYTES;
> +
> +	/* Copy IV at the end of the crypto operation */
> +	rte_memcpy(rte_crypto_op_ctod_offset(ut_params->op, uint8_t *,
> IV_OFFSET),
> +			aes_cbc_iv, CIPHER_IV_LENGTH_AES_CBC);
> +
> +	/* Set crypto operation cipher parameters */
> +	sym_op->cipher.data.offset = 0;
> +	sym_op->cipher.data.length = QUOTE_512_BYTES;
> +
> +	/* Process crypto operation */
> +	if (gbl_action_type == RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO)
> +		process_cpu_crypt_auth_op(ts_params->valid_devs[0],
> +			ut_params->op);
> +	else
> +		TEST_ASSERT_NOT_NULL(
> +			process_crypto_request(ts_params->valid_devs[0],
> +				ut_params->op),
> +				"failed to process sym crypto op");
> +
> +	TEST_ASSERT_EQUAL(ut_params->op->status,
> RTE_CRYPTO_OP_STATUS_SUCCESS,
> +			"crypto op processing failed");
> +
> +	/* Validate obuf */
> +	uint8_t *ciphertext = rte_pktmbuf_mtod(ut_params->op->sym->m_src,
> +			uint8_t *);
> +
> +	TEST_ASSERT_BUFFERS_ARE_EQUAL(ciphertext,
> +			catch_22_quote_2_512_bytes_AES_CBC_ciphertext,
> +			QUOTE_512_BYTES,
> +			"ciphertext data not as expected");
> +
> +	uint8_t *digest = ciphertext + QUOTE_512_BYTES;
> +
> +	TEST_ASSERT_BUFFERS_ARE_EQUAL(digest,
> +
> 	catch_22_quote_2_512_bytes_AES_CBC_HMAC_SHA1_digest,
> +			gbl_driver_id == rte_cryptodev_driver_id_get(
> +
> 	RTE_STR(CRYPTODEV_NAME_AESNI_MB_PMD)) ?
> +
> 	TRUNCATED_DIGEST_BYTE_LENGTH_SHA1 :
> +					DIGEST_BYTE_LENGTH_SHA1,
> +			"Generated digest data not as expected");
> +
Above check for AESNI_MB not required.

> +	return TEST_SUCCESS;
> +}
> +
> +
>  /* ***** AES-CBC / HMAC-SHA512 Hash Tests ***** */
> 
>  #define HMAC_KEY_LENGTH_SHA512  (DIGEST_BYTE_LENGTH_SHA512)
> @@ -15458,6 +15619,8 @@ static struct unit_test_suite
> cryptodev_gen_testsuite  = {
>  		TEST_CASE_ST(ut_setup, ut_teardown, test_stats),
>  		TEST_CASE_ST(ut_setup, ut_teardown,
> test_enq_callback_setup),
>  		TEST_CASE_ST(ut_setup, ut_teardown,
> test_deq_callback_setup),
> +		TEST_CASE_ST(ut_setup, ut_teardown,
> +
> 	test_AES_CBC_HMAC_SHA1_encrypt_digest_ext_buffer),
>  		TEST_CASES_END() /**< NULL terminate unit test array */
>  	}
>  };
> --
> 2.25.1