AESNI_MB PMD does not support Digest Encrypted. This patch adds a check and
support for this feature.
Signed-off-by: Brian Dooley <brian.doo...@intel.com>
---
v2:
Fixed CHECKPATCH warning
v3:
Add Digest encrypted support to docs
v4:
add comments and refactor
---
doc/guides/cryptodevs/features/aesni_mb.ini | 1 +
drivers/crypto/ipsec_mb/pmd_aesni_mb.c | 109 +++++++++++++++++++-
2 files changed, 105 insertions(+), 5 deletions(-)
diff --git a/doc/guides/cryptodevs/features/aesni_mb.ini
b/doc/guides/cryptodevs/features/aesni_mb.ini
index e4e965c35a..8df5fa2c85 100644
--- a/doc/guides/cryptodevs/features/aesni_mb.ini
+++ b/doc/guides/cryptodevs/features/aesni_mb.ini
@@ -20,6 +20,7 @@ OOP LB In LB Out = Y
CPU crypto = Y
Symmetric sessionless = Y
Non-Byte aligned data = Y
+Digest encrypted = Y
;
; Supported crypto algorithms of the 'aesni_mb' crypto driver.
diff --git a/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
b/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
index 9e298023d7..552d1f16b5 100644
--- a/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
+++ b/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
@@ -1438,6 +1438,54 @@ set_gcm_job(IMB_MGR *mb_mgr, IMB_JOB *job, const uint8_t
sgl,
return 0;
}
+/** Check if conditions are met for digest-appended operations */
+static uint8_t *
+aesni_mb_digest_appended_in_src(struct rte_crypto_op *op, IMB_JOB *job,
+ uint32_t oop)
+{
+ unsigned int auth_size, cipher_size;
+ uint8_t *end_cipher;
+ uint8_t *start_cipher;
+
+ if (job->cipher_mode == IMB_CIPHER_NULL)
+ return NULL;
+
+ if (job->cipher_mode == IMB_CIPHER_ZUC_EEA3 ||
+ job->cipher_mode == IMB_CIPHER_SNOW3G_UEA2_BITLEN ||
+ job->cipher_mode == IMB_CIPHER_KASUMI_UEA1_BITLEN) {
+ cipher_size = (op->sym->cipher.data.offset >> 3) +
+ (op->sym->cipher.data.length >> 3);
+ } else {
+ cipher_size = (op->sym->cipher.data.offset) +
+ (op->sym->cipher.data.length);
+ }
+ if (job->hash_alg == IMB_AUTH_ZUC_EIA3_BITLEN ||
+ job->hash_alg == IMB_AUTH_SNOW3G_UIA2_BITLEN ||
+ job->hash_alg == IMB_AUTH_KASUMI_UIA1 ||
+ job->hash_alg == IMB_AUTH_ZUC256_EIA3_BITLEN) {
+ auth_size = (op->sym->auth.data.offset >> 3) +
+ (op->sym->auth.data.length >> 3);
+ } else {
+ auth_size = (op->sym->auth.data.offset) +
+ (op->sym->auth.data.length);
+ }
+
+ if (!oop) {
+ end_cipher = rte_pktmbuf_mtod_offset(op->sym->m_src, uint8_t *,
cipher_size);
+ start_cipher = rte_pktmbuf_mtod(op->sym->m_src, uint8_t *);
+ } else {
+ end_cipher = rte_pktmbuf_mtod_offset(op->sym->m_dst, uint8_t *,
cipher_size);
+ start_cipher = rte_pktmbuf_mtod(op->sym->m_dst, uint8_t *);
+ }
+
+ if (start_cipher < op->sym->auth.digest.data &&
+ op->sym->auth.digest.data < end_cipher) {
+ return rte_pktmbuf_mtod_offset(op->sym->m_src, uint8_t *,
auth_size);
+ } else {
+ return NULL;
+ }
+}
+
/**
* Process a crypto operation and complete a IMB_JOB job structure for
* submission to the multi buffer library for processing.
@@ -1580,9 +1628,12 @@ set_mb_job_params(IMB_JOB *job, struct ipsec_mb_qp *qp,
} else {
if (aead)
job->auth_tag_output = op->sym->aead.digest.data;
- else
- job->auth_tag_output = op->sym->auth.digest.data;
-
+ else {
+ job->auth_tag_output =
aesni_mb_digest_appended_in_src(op, job, oop);
+ if (job->auth_tag_output == NULL) {
+ job->auth_tag_output =
op->sym->auth.digest.data;
+ }
+ }
if (session->auth.req_digest_len !=
job->auth_tag_output_len_in_bytes) {
job->auth_tag_output =
@@ -1917,6 +1968,7 @@ post_process_mb_job(struct ipsec_mb_qp *qp, IMB_JOB *job)
struct aesni_mb_session *sess = NULL;
uint8_t *linear_buf = NULL;
int sgl = 0;
+ uint8_t oop = 0;
uint8_t is_docsis_sec = 0;
if (op->sess_type == RTE_CRYPTO_OP_SECURITY_SESSION) {
@@ -1962,8 +2014,54 @@ post_process_mb_job(struct ipsec_mb_qp *qp, IMB_JOB *job)
op->sym->auth.digest.data,
sess->auth.req_digest_len,
&op->status);
- } else
+ } else {
+ if (!op->sym->m_dst || op->sym->m_dst ==
op->sym->m_src) {
+ /* in-place operation */
+ oop = 0;
+ } else { /* out-of-place operation */
+ oop = 1;
+ }
+
+ /* Enable digest check */
+ if (op->sym->m_src->nb_segs == 1 &&
op->sym->m_dst != NULL
+ && !is_aead_algo(job->hash_alg,
sess->template_job.cipher_mode) &&
+ aesni_mb_digest_appended_in_src(op, job, oop)
!= NULL) {
+ unsigned int auth_size, cipher_size;
+ int unencrypted_bytes = 0;
+ if (job->cipher_mode ==
IMB_CIPHER_SNOW3G_UEA2_BITLEN ||
+ job->cipher_mode ==
IMB_CIPHER_KASUMI_UEA1_BITLEN ||
+ job->cipher_mode ==
IMB_CIPHER_ZUC_EEA3) {
+ cipher_size =
(op->sym->cipher.data.offset >> 3) +
+
(op->sym->cipher.data.length >> 3);
+ } else {
+ cipher_size =
(op->sym->cipher.data.offset) +
+
(op->sym->cipher.data.length);
+ }
+ if (job->hash_alg ==
IMB_AUTH_ZUC_EIA3_BITLEN ||
+ job->hash_alg ==
IMB_AUTH_SNOW3G_UIA2_BITLEN ||
+ job->hash_alg ==
IMB_AUTH_KASUMI_UIA1 ||
+ job->hash_alg ==
IMB_AUTH_ZUC256_EIA3_BITLEN) {
+ auth_size =
(op->sym->auth.data.offset >> 3) +
+
(op->sym->auth.data.length >> 3);
+ } else {
+ auth_size =
(op->sym->auth.data.offset) +
+ (op->sym->auth.data.length);
+ }
+ /* Check for unencrypted bytes in
partial digest cases */
+ if (job->cipher_mode !=
IMB_CIPHER_NULL) {
+ unencrypted_bytes = auth_size +
+
job->auth_tag_output_len_in_bytes - cipher_size;
+ if (unencrypted_bytes > 0)
+ rte_memcpy(
+ rte_pktmbuf_mtod_offset(
+ op->sym->m_dst,
uint8_t *, cipher_size),
+ rte_pktmbuf_mtod_offset(
+ op->sym->m_src,
uint8_t *, cipher_size),
+ unencrypted_bytes);
+ }
+ }
generate_digest(job, op, sess);
+ }
break;
default:
op->status = RTE_CRYPTO_OP_STATUS_ERROR;
@@ -2555,7 +2653,8 @@ RTE_INIT(ipsec_mb_register_aesni_mb)
RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
RTE_CRYPTODEV_FF_OOP_LB_IN_SGL_OUT |
RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
- RTE_CRYPTODEV_FF_SECURITY;
+ RTE_CRYPTODEV_FF_SECURITY |
+ RTE_CRYPTODEV_FF_DIGEST_ENCRYPTED;
aesni_mb_data->internals_priv_size = 0;
aesni_mb_data->ops = &aesni_mb_pmd_ops;
--
2.25.1
