IPsec requires truncated HMAC operations support. Extend OpenSSL crypto
PMD to support truncated HMAC operations necessary for IPsec.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org>
---
Changes since V1:
- support all digest sizes from half of corresponding digest size up to
full length.
---
drivers/crypto/openssl/rte_openssl_pmd.c | 19 ++++++++--------
drivers/crypto/openssl/rte_openssl_pmd_ops.c | 24 ++++++++++----------
2 files changed, 22 insertions(+), 21 deletions(-)
diff --git a/drivers/crypto/openssl/rte_openssl_pmd.c
b/drivers/crypto/openssl/rte_openssl_pmd.c
index 7d263aba3bbd..c635f1e2493c 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd.c
@@ -1509,15 +1509,7 @@ process_openssl_auth_op(struct openssl_qp *qp, struct
rte_crypto_op *op,
srclen = op->sym->auth.data.length;
- if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
- dst = qp->temp_digest;
- else {
- dst = op->sym->auth.digest.data;
- if (dst == NULL)
- dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
- op->sym->auth.data.offset +
- op->sym->auth.data.length);
- }
+ dst = qp->temp_digest;
switch (sess->auth.mode) {
case OPENSSL_AUTH_AS_AUTH:
@@ -1540,6 +1532,15 @@ process_openssl_auth_op(struct openssl_qp *qp, struct
rte_crypto_op *op,
sess->auth.digest_length) != 0) {
op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
}
+ } else {
+ uint8_t *auth_dst;
+
+ auth_dst = op->sym->auth.digest.data;
+ if (auth_dst == NULL)
+ auth_dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
+ op->sym->auth.data.offset +
+ op->sym->auth.data.length);
+ memcpy(auth_dst, dst, sess->auth.digest_length);
}
if (status != 0)
diff --git a/drivers/crypto/openssl/rte_openssl_pmd_ops.c
b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
index de2284390b12..6d3e21de404d 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd_ops.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
@@ -26,9 +26,9 @@ static const struct rte_cryptodev_capabilities
openssl_pmd_capabilities[] = {
.increment = 1
},
.digest_size = {
- .min = 16,
+ .min = 8,
.max = 16,
- .increment = 0
+ .increment = 1
},
.iv_size = { 0 }
}, }
@@ -68,9 +68,9 @@ static const struct rte_cryptodev_capabilities
openssl_pmd_capabilities[] = {
.increment = 1
},
.digest_size = {
- .min = 20,
+ .min = 10,
.max = 20,
- .increment = 0
+ .increment = 1
},
.iv_size = { 0 }
}, }
@@ -110,9 +110,9 @@ static const struct rte_cryptodev_capabilities
openssl_pmd_capabilities[] = {
.increment = 1
},
.digest_size = {
- .min = 28,
+ .min = 14,
.max = 28,
- .increment = 0
+ .increment = 1
},
.iv_size = { 0 }
}, }
@@ -152,9 +152,9 @@ static const struct rte_cryptodev_capabilities
openssl_pmd_capabilities[] = {
.increment = 1
},
.digest_size = {
- .min = 32,
+ .min = 16,
.max = 32,
- .increment = 0
+ .increment = 1
},
.iv_size = { 0 }
}, }
@@ -194,9 +194,9 @@ static const struct rte_cryptodev_capabilities
openssl_pmd_capabilities[] = {
.increment = 1
},
.digest_size = {
- .min = 48,
+ .min = 24,
.max = 48,
- .increment = 0
+ .increment = 1
},
.iv_size = { 0 }
}, }
@@ -236,9 +236,9 @@ static const struct rte_cryptodev_capabilities
openssl_pmd_capabilities[] = {
.increment = 1
},
.digest_size = {
- .min = 64,
+ .min = 32,
.max = 64,
- .increment = 0
+ .increment = 1
},
.iv_size = { 0 }
}, }
--
2.18.0
