cryptodev: update symmetric session structure
This patch updates the rte_cryptodev_sym_session structure for cryptodev library. The updates include a changed session private data array and an added nb_drivers field. They are used to calculate the correct session header size and ensure safe access of the session private data. Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com> Acked-by: Fiona Trahe <fiona.trahe@intel.com> Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
This commit is contained in:
Fan Zhang
Pablo de Lara
parent
0b60386ac3
commit
e764cd72a9
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Before Width: | Height: | Size: 16 KiB After Width: | Height: | Size: 19 KiB |
@ -75,11 +75,5 @@ Deprecation Notices
|
||||
``rte_security_session`` structure. That would allow upper layer to easily
|
||||
associate/de-associate some user defined data with the security session.
|
||||
|
||||
* cryptodev: several API and ABI changes are planned for rte_cryptodev
|
||||
in v19.02:
|
||||
|
||||
- The size and layout of ``rte_cryptodev_sym_session`` will change
|
||||
to fix existing issues.
|
||||
|
||||
* crypto/aesni_mb: the minimum supported intel-ipsec-mb library version will be
|
||||
changed from 0.49.0 to 0.52.0.
|
||||
|
||||
@ -176,7 +176,8 @@ API Changes
|
||||
* cryptodev: a new function ``rte_cryptodev_sym_session_pool_create()`` is
|
||||
introduced. This function is now mandatory when creating symmetric session
|
||||
header mempool. Please note all crypto applications are required to use this
|
||||
function from now on.
|
||||
function from now on. Failed to do so will cause
|
||||
``rte_cryptodev_sym_session_create()`` function call return error.
|
||||
|
||||
|
||||
ABI Changes
|
||||
@ -201,6 +202,10 @@ ABI Changes
|
||||
``rte_cryptodev_qp_conf`` has been added two parameters of symmetric session
|
||||
mempool and symmetric session private data mempool.
|
||||
|
||||
* cryptodev: as shown in the the 18.11 deprecation notice, the structure
|
||||
``rte_cryptodev_sym_session`` has been updated to contain more information
|
||||
to ensure safely accessing the session and session private data.
|
||||
|
||||
|
||||
Shared Library Versions
|
||||
-----------------------
|
||||
|
||||
@ -978,6 +978,30 @@ rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (qp_conf->mp_session) {
|
||||
struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
|
||||
uint32_t obj_size = qp_conf->mp_session->elt_size;
|
||||
uint32_t obj_priv_size = qp_conf->mp_session_private->elt_size;
|
||||
struct rte_cryptodev_sym_session s = {0};
|
||||
|
||||
pool_priv = rte_mempool_get_priv(qp_conf->mp_session);
|
||||
if (!pool_priv || qp_conf->mp_session->private_data_size <
|
||||
sizeof(*pool_priv)) {
|
||||
CDEV_LOG_ERR("Invalid mempool\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
s.nb_drivers = pool_priv->nb_drivers;
|
||||
|
||||
if ((rte_cryptodev_sym_get_existing_header_session_size(&s) >
|
||||
obj_size) || (s.nb_drivers <= dev->driver_id) ||
|
||||
rte_cryptodev_sym_get_private_session_size(dev_id) >
|
||||
obj_priv_size) {
|
||||
CDEV_LOG_ERR("Invalid mempool\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
if (dev->data->dev_started) {
|
||||
CDEV_LOG_ERR(
|
||||
"device %d must be stopped to allow configuration", dev_id);
|
||||
@ -1172,6 +1196,8 @@ rte_cryptodev_sym_session_init(uint8_t dev_id,
|
||||
struct rte_mempool *mp)
|
||||
{
|
||||
struct rte_cryptodev *dev;
|
||||
uint32_t sess_priv_sz = rte_cryptodev_sym_get_private_session_size(
|
||||
dev_id);
|
||||
uint8_t index;
|
||||
int ret;
|
||||
|
||||
@ -1180,11 +1206,16 @@ rte_cryptodev_sym_session_init(uint8_t dev_id,
|
||||
if (sess == NULL || xforms == NULL || dev == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
if (mp->elt_size < sess_priv_sz)
|
||||
return -EINVAL;
|
||||
|
||||
index = dev->driver_id;
|
||||
if (index >= sess->nb_drivers)
|
||||
return -EINVAL;
|
||||
|
||||
RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->sym_session_configure, -ENOTSUP);
|
||||
|
||||
if (sess->sess_private_data[index] == NULL) {
|
||||
if (sess->sess_data[index].data == NULL) {
|
||||
ret = dev->dev_ops->sym_session_configure(dev, xforms,
|
||||
sess, mp);
|
||||
if (ret < 0) {
|
||||
@ -1273,10 +1304,29 @@ rte_cryptodev_sym_session_pool_create(const char *name, uint32_t nb_elts,
|
||||
return mp;
|
||||
}
|
||||
|
||||
static unsigned int
|
||||
rte_cryptodev_sym_session_data_size(struct rte_cryptodev_sym_session *sess)
|
||||
{
|
||||
return (sizeof(sess->sess_data[0]) * sess->nb_drivers);
|
||||
}
|
||||
|
||||
struct rte_cryptodev_sym_session *
|
||||
rte_cryptodev_sym_session_create(struct rte_mempool *mp)
|
||||
{
|
||||
struct rte_cryptodev_sym_session *sess;
|
||||
struct rte_cryptodev_sym_session_pool_private_data *pool_priv;
|
||||
|
||||
if (!mp) {
|
||||
CDEV_LOG_ERR("Invalid mempool\n");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
pool_priv = rte_mempool_get_priv(mp);
|
||||
|
||||
if (!pool_priv || mp->private_data_size < sizeof(*pool_priv)) {
|
||||
CDEV_LOG_ERR("Invalid mempool\n");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Allocate a session structure from the session pool */
|
||||
if (rte_mempool_get(mp, (void **)&sess)) {
|
||||
@ -1284,10 +1334,14 @@ rte_cryptodev_sym_session_create(struct rte_mempool *mp)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
sess->nb_drivers = pool_priv->nb_drivers;
|
||||
|
||||
|
||||
/* Clear device session pointer.
|
||||
* Include the flag indicating presence of user data
|
||||
*/
|
||||
memset(sess, 0, (sizeof(void *) * nb_drivers) + sizeof(uint8_t));
|
||||
memset(sess->sess_data, 0,
|
||||
rte_cryptodev_sym_session_data_size(sess));
|
||||
|
||||
return sess;
|
||||
}
|
||||
@ -1395,16 +1449,20 @@ rte_cryptodev_asym_session_free(struct rte_cryptodev_asym_session *sess)
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
unsigned int
|
||||
rte_cryptodev_sym_get_header_session_size(void)
|
||||
{
|
||||
/*
|
||||
* Header contains pointers to the private data
|
||||
* of all registered drivers, and a flag which
|
||||
* indicates presence of user data
|
||||
* Header contains pointers to the private data of all registered
|
||||
* drivers and all necessary information to ensure safely clear
|
||||
* or free al session.
|
||||
*/
|
||||
return ((sizeof(void *) * nb_drivers) + sizeof(uint8_t));
|
||||
struct rte_cryptodev_sym_session s = {0};
|
||||
|
||||
s.nb_drivers = nb_drivers;
|
||||
|
||||
return (unsigned int)(sizeof(s) +
|
||||
rte_cryptodev_sym_session_data_size(&s));
|
||||
}
|
||||
|
||||
unsigned int __rte_experimental
|
||||
@ -1414,7 +1472,8 @@ rte_cryptodev_sym_get_existing_header_session_size(
|
||||
if (!sess)
|
||||
return 0;
|
||||
else
|
||||
return rte_cryptodev_sym_get_header_session_size();
|
||||
return (unsigned int)(sizeof(*sess) +
|
||||
rte_cryptodev_sym_session_data_size(sess));
|
||||
}
|
||||
|
||||
unsigned int __rte_experimental
|
||||
@ -1432,7 +1491,6 @@ unsigned int
|
||||
rte_cryptodev_sym_get_private_session_size(uint8_t dev_id)
|
||||
{
|
||||
struct rte_cryptodev *dev;
|
||||
unsigned int header_size = sizeof(void *) * nb_drivers;
|
||||
unsigned int priv_sess_size;
|
||||
|
||||
if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
|
||||
@ -1445,16 +1503,7 @@ rte_cryptodev_sym_get_private_session_size(uint8_t dev_id)
|
||||
|
||||
priv_sess_size = (*dev->dev_ops->sym_session_get_size)(dev);
|
||||
|
||||
/*
|
||||
* If size is less than session header size,
|
||||
* return the latter, as this guarantees that
|
||||
* sessionless operations will work
|
||||
*/
|
||||
if (priv_sess_size < header_size)
|
||||
return header_size;
|
||||
|
||||
return priv_sess_size;
|
||||
|
||||
}
|
||||
|
||||
unsigned int __rte_experimental
|
||||
@ -1486,15 +1535,10 @@ rte_cryptodev_sym_session_set_user_data(
|
||||
void *data,
|
||||
uint16_t size)
|
||||
{
|
||||
uint16_t off_set = sizeof(void *) * nb_drivers;
|
||||
uint8_t *user_data_present = (uint8_t *)sess + off_set;
|
||||
|
||||
if (sess == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
*user_data_present = 1;
|
||||
off_set += sizeof(uint8_t);
|
||||
rte_memcpy((uint8_t *)sess + off_set, data, size);
|
||||
rte_memcpy(sess->sess_data + sess->nb_drivers, data, size);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -1502,14 +1546,10 @@ void * __rte_experimental
|
||||
rte_cryptodev_sym_session_get_user_data(
|
||||
struct rte_cryptodev_sym_session *sess)
|
||||
{
|
||||
uint16_t off_set = sizeof(void *) * nb_drivers;
|
||||
uint8_t *user_data_present = (uint8_t *)sess + off_set;
|
||||
|
||||
if (sess == NULL || !*user_data_present)
|
||||
if (sess == NULL)
|
||||
return NULL;
|
||||
|
||||
off_set += sizeof(uint8_t);
|
||||
return (uint8_t *)sess + off_set;
|
||||
return (void *)(sess->sess_data + sess->nb_drivers);
|
||||
}
|
||||
|
||||
/** Initialise rte_crypto_op mempool element */
|
||||
|
||||
@ -953,8 +953,12 @@ rte_cryptodev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
|
||||
* has a fixed algo, key, op-type, digest_len etc.
|
||||
*/
|
||||
struct rte_cryptodev_sym_session {
|
||||
__extension__ void *sess_private_data[0];
|
||||
/**< Private symmetric session material */
|
||||
uint16_t nb_drivers;
|
||||
/**< number of elements in sess_data array */
|
||||
__extension__ struct {
|
||||
void *data;
|
||||
} sess_data[0];
|
||||
/**< Driver specific session material, variable size */
|
||||
};
|
||||
|
||||
/** Cryptodev asymmetric crypto session */
|
||||
|
||||
@ -475,14 +475,23 @@ RTE_INIT(init_ ##driver_id)\
|
||||
static inline void *
|
||||
get_sym_session_private_data(const struct rte_cryptodev_sym_session *sess,
|
||||
uint8_t driver_id) {
|
||||
return sess->sess_private_data[driver_id];
|
||||
if (unlikely(sess->nb_drivers <= driver_id))
|
||||
return NULL;
|
||||
|
||||
return sess->sess_data[driver_id].data;
|
||||
}
|
||||
|
||||
static inline void
|
||||
set_sym_session_private_data(struct rte_cryptodev_sym_session *sess,
|
||||
uint8_t driver_id, void *private_data)
|
||||
{
|
||||
sess->sess_private_data[driver_id] = private_data;
|
||||
if (unlikely(sess->nb_drivers <= driver_id)) {
|
||||
CDEV_LOG_ERR("Set private data for driver %u not allowed\n",
|
||||
driver_id);
|
||||
return;
|
||||
}
|
||||
|
||||
sess->sess_data[driver_id].data = private_data;
|
||||
}
|
||||
|
||||
static inline void *
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user