vhost/crypto: add session message handler

This patch adds session message handler to vhost crypto.

Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Jay Zhou <jianjay.zhou@huawei.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Fan Zhang 2018-04-05 17:01:32 +01:00 committed by Ferruh Yigit
parent 136076ed72
commit e80a987081
2 changed files with 436 additions and 0 deletions

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@ -0,0 +1,434 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2017-2018 Intel Corporation
*/
#include <rte_malloc.h>
#include <rte_hash.h>
#include <rte_mbuf.h>
#include <rte_cryptodev.h>
#include "vhost.h"
#include "vhost_user.h"
#include "virtio_crypto.h"
#define IV_OFFSET (sizeof(struct rte_crypto_op) + \
sizeof(struct rte_crypto_sym_op))
#ifdef RTE_LIBRTE_VHOST_DEBUG
#define VC_LOG_ERR(fmt, args...) \
RTE_LOG(ERR, USER1, "[%s] %s() line %u: " fmt "\n", \
"Vhost-Crypto", __func__, __LINE__, ## args)
#define VC_LOG_INFO(fmt, args...) \
RTE_LOG(INFO, USER1, "[%s] %s() line %u: " fmt "\n", \
"Vhost-Crypto", __func__, __LINE__, ## args)
#define VC_LOG_DBG(fmt, args...) \
RTE_LOG(DEBUG, USER1, "[%s] %s() line %u: " fmt "\n", \
"Vhost-Crypto", __func__, __LINE__, ## args)
#else
#define VC_LOG_ERR(fmt, args...) \
RTE_LOG(ERR, USER1, "[VHOST-Crypto]: " fmt "\n", ## args)
#define VC_LOG_INFO(fmt, args...) \
RTE_LOG(INFO, USER1, "[VHOST-Crypto]: " fmt "\n", ## args)
#define VC_LOG_DBG(fmt, args...)
#endif
static int
cipher_algo_transform(uint32_t virtio_cipher_algo)
{
int ret;
switch (virtio_cipher_algo) {
case VIRTIO_CRYPTO_CIPHER_AES_CBC:
ret = RTE_CRYPTO_CIPHER_AES_CBC;
break;
case VIRTIO_CRYPTO_CIPHER_AES_CTR:
ret = RTE_CRYPTO_CIPHER_AES_CTR;
break;
case VIRTIO_CRYPTO_CIPHER_DES_ECB:
ret = -VIRTIO_CRYPTO_NOTSUPP;
break;
case VIRTIO_CRYPTO_CIPHER_DES_CBC:
ret = RTE_CRYPTO_CIPHER_DES_CBC;
break;
case VIRTIO_CRYPTO_CIPHER_3DES_ECB:
ret = RTE_CRYPTO_CIPHER_3DES_ECB;
break;
case VIRTIO_CRYPTO_CIPHER_3DES_CBC:
ret = RTE_CRYPTO_CIPHER_3DES_CBC;
break;
case VIRTIO_CRYPTO_CIPHER_3DES_CTR:
ret = RTE_CRYPTO_CIPHER_3DES_CTR;
break;
case VIRTIO_CRYPTO_CIPHER_KASUMI_F8:
ret = RTE_CRYPTO_CIPHER_KASUMI_F8;
break;
case VIRTIO_CRYPTO_CIPHER_SNOW3G_UEA2:
ret = RTE_CRYPTO_CIPHER_SNOW3G_UEA2;
break;
case VIRTIO_CRYPTO_CIPHER_AES_F8:
ret = RTE_CRYPTO_CIPHER_AES_F8;
break;
case VIRTIO_CRYPTO_CIPHER_AES_XTS:
ret = RTE_CRYPTO_CIPHER_AES_XTS;
break;
case VIRTIO_CRYPTO_CIPHER_ZUC_EEA3:
ret = RTE_CRYPTO_CIPHER_ZUC_EEA3;
break;
default:
ret = -VIRTIO_CRYPTO_BADMSG;
break;
}
return ret;
}
static int
auth_algo_transform(uint32_t virtio_auth_algo)
{
int ret;
switch (virtio_auth_algo) {
case VIRTIO_CRYPTO_NO_MAC:
ret = RTE_CRYPTO_AUTH_NULL;
break;
case VIRTIO_CRYPTO_MAC_HMAC_MD5:
ret = RTE_CRYPTO_AUTH_MD5_HMAC;
break;
case VIRTIO_CRYPTO_MAC_HMAC_SHA1:
ret = RTE_CRYPTO_AUTH_SHA1_HMAC;
break;
case VIRTIO_CRYPTO_MAC_HMAC_SHA_224:
ret = RTE_CRYPTO_AUTH_SHA224_HMAC;
break;
case VIRTIO_CRYPTO_MAC_HMAC_SHA_256:
ret = RTE_CRYPTO_AUTH_SHA256_HMAC;
break;
case VIRTIO_CRYPTO_MAC_HMAC_SHA_384:
ret = RTE_CRYPTO_AUTH_SHA384_HMAC;
break;
case VIRTIO_CRYPTO_MAC_HMAC_SHA_512:
ret = RTE_CRYPTO_AUTH_SHA512_HMAC;
break;
case VIRTIO_CRYPTO_MAC_CMAC_3DES:
ret = -VIRTIO_CRYPTO_NOTSUPP;
break;
case VIRTIO_CRYPTO_MAC_CMAC_AES:
ret = RTE_CRYPTO_AUTH_AES_CMAC;
break;
case VIRTIO_CRYPTO_MAC_KASUMI_F9:
ret = RTE_CRYPTO_AUTH_KASUMI_F9;
break;
case VIRTIO_CRYPTO_MAC_SNOW3G_UIA2:
ret = RTE_CRYPTO_AUTH_SNOW3G_UIA2;
break;
case VIRTIO_CRYPTO_MAC_GMAC_AES:
ret = RTE_CRYPTO_AUTH_AES_GMAC;
break;
case VIRTIO_CRYPTO_MAC_GMAC_TWOFISH:
ret = -VIRTIO_CRYPTO_NOTSUPP;
break;
case VIRTIO_CRYPTO_MAC_CBCMAC_AES:
ret = RTE_CRYPTO_AUTH_AES_CBC_MAC;
break;
case VIRTIO_CRYPTO_MAC_CBCMAC_KASUMI_F9:
ret = -VIRTIO_CRYPTO_NOTSUPP;
break;
case VIRTIO_CRYPTO_MAC_XCBC_AES:
ret = RTE_CRYPTO_AUTH_AES_XCBC_MAC;
break;
default:
ret = -VIRTIO_CRYPTO_BADMSG;
break;
}
return ret;
}
static int get_iv_len(enum rte_crypto_cipher_algorithm algo)
{
int len;
switch (algo) {
case RTE_CRYPTO_CIPHER_3DES_CBC:
len = 8;
break;
case RTE_CRYPTO_CIPHER_3DES_CTR:
len = 8;
break;
case RTE_CRYPTO_CIPHER_3DES_ECB:
len = 8;
break;
case RTE_CRYPTO_CIPHER_AES_CBC:
len = 16;
break;
/* TODO: add common algos */
default:
len = -1;
break;
}
return len;
}
/**
* vhost_crypto struct is used to maintain a number of virtio_cryptos and
* one DPDK crypto device that deals with all crypto workloads. It is declared
* here and defined in vhost_crypto.c
*/
struct vhost_crypto {
/** Used to lookup DPDK Cryptodev Session based on VIRTIO crypto
* session ID.
*/
struct rte_hash *session_map;
struct rte_mempool *mbuf_pool;
struct rte_mempool *sess_pool;
/** DPDK cryptodev ID */
uint8_t cid;
uint16_t nb_qps;
uint64_t last_session_id;
uint64_t cache_session_id;
struct rte_cryptodev_sym_session *cache_session;
/** socket id for the device */
int socket_id;
struct virtio_net *dev;
uint8_t option;
} __rte_cache_aligned;
static int
transform_cipher_param(struct rte_crypto_sym_xform *xform,
VhostUserCryptoSessionParam *param)
{
int ret;
ret = cipher_algo_transform(param->cipher_algo);
if (unlikely(ret < 0))
return ret;
xform->type = RTE_CRYPTO_SYM_XFORM_CIPHER;
xform->cipher.algo = (uint32_t)ret;
xform->cipher.key.length = param->cipher_key_len;
if (xform->cipher.key.length > 0)
xform->cipher.key.data = param->cipher_key_buf;
if (param->dir == VIRTIO_CRYPTO_OP_ENCRYPT)
xform->cipher.op = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
else if (param->dir == VIRTIO_CRYPTO_OP_DECRYPT)
xform->cipher.op = RTE_CRYPTO_CIPHER_OP_DECRYPT;
else {
VC_LOG_DBG("Bad operation type");
return -VIRTIO_CRYPTO_BADMSG;
}
ret = get_iv_len(xform->cipher.algo);
if (unlikely(ret < 0))
return ret;
xform->cipher.iv.length = (uint16_t)ret;
xform->cipher.iv.offset = IV_OFFSET;
return 0;
}
static int
transform_chain_param(struct rte_crypto_sym_xform *xforms,
VhostUserCryptoSessionParam *param)
{
struct rte_crypto_sym_xform *xform_cipher, *xform_auth;
int ret;
switch (param->chaining_dir) {
case VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER:
xform_auth = xforms;
xform_cipher = xforms->next;
xform_cipher->cipher.op = RTE_CRYPTO_CIPHER_OP_DECRYPT;
xform_auth->auth.op = RTE_CRYPTO_AUTH_OP_VERIFY;
break;
case VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH:
xform_cipher = xforms;
xform_auth = xforms->next;
xform_cipher->cipher.op = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
xform_auth->auth.op = RTE_CRYPTO_AUTH_OP_GENERATE;
break;
default:
return -VIRTIO_CRYPTO_BADMSG;
}
/* cipher */
ret = cipher_algo_transform(param->cipher_algo);
if (unlikely(ret < 0))
return ret;
xform_cipher->type = RTE_CRYPTO_SYM_XFORM_CIPHER;
xform_cipher->cipher.algo = (uint32_t)ret;
xform_cipher->cipher.key.length = param->cipher_key_len;
xform_cipher->cipher.key.data = param->cipher_key_buf;
ret = get_iv_len(xform_cipher->cipher.algo);
if (unlikely(ret < 0))
return ret;
xform_cipher->cipher.iv.length = (uint16_t)ret;
xform_cipher->cipher.iv.offset = IV_OFFSET;
/* auth */
xform_auth->type = RTE_CRYPTO_SYM_XFORM_AUTH;
ret = auth_algo_transform(param->hash_algo);
if (unlikely(ret < 0))
return ret;
xform_auth->auth.algo = (uint32_t)ret;
xform_auth->auth.digest_length = param->digest_len;
xform_auth->auth.key.length = param->auth_key_len;
xform_auth->auth.key.data = param->auth_key_buf;
return 0;
}
static void
vhost_crypto_create_sess(struct vhost_crypto *vcrypto,
VhostUserCryptoSessionParam *sess_param)
{
struct rte_crypto_sym_xform xform1 = {0}, xform2 = {0};
struct rte_cryptodev_sym_session *session;
int ret;
switch (sess_param->op_type) {
case VIRTIO_CRYPTO_SYM_OP_NONE:
case VIRTIO_CRYPTO_SYM_OP_CIPHER:
ret = transform_cipher_param(&xform1, sess_param);
if (unlikely(ret)) {
VC_LOG_ERR("Error transform session msg (%i)", ret);
sess_param->session_id = ret;
return;
}
break;
case VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING:
if (unlikely(sess_param->hash_mode !=
VIRTIO_CRYPTO_SYM_HASH_MODE_AUTH)) {
sess_param->session_id = -VIRTIO_CRYPTO_NOTSUPP;
VC_LOG_ERR("Error transform session message (%i)",
-VIRTIO_CRYPTO_NOTSUPP);
return;
}
xform1.next = &xform2;
ret = transform_chain_param(&xform1, sess_param);
if (unlikely(ret)) {
VC_LOG_ERR("Error transform session message (%i)", ret);
sess_param->session_id = ret;
return;
}
break;
default:
VC_LOG_ERR("Algorithm not yet supported");
sess_param->session_id = -VIRTIO_CRYPTO_NOTSUPP;
return;
}
session = rte_cryptodev_sym_session_create(vcrypto->sess_pool);
if (!session) {
VC_LOG_ERR("Failed to create session");
sess_param->session_id = -VIRTIO_CRYPTO_ERR;
return;
}
if (rte_cryptodev_sym_session_init(vcrypto->cid, session, &xform1,
vcrypto->sess_pool) < 0) {
VC_LOG_ERR("Failed to initialize session");
sess_param->session_id = -VIRTIO_CRYPTO_ERR;
return;
}
/* insert hash to map */
if (rte_hash_add_key_data(vcrypto->session_map,
&vcrypto->last_session_id, session) < 0) {
VC_LOG_ERR("Failed to insert session to hash table");
if (rte_cryptodev_sym_session_clear(vcrypto->cid, session) < 0)
VC_LOG_ERR("Failed to clear session");
else {
if (rte_cryptodev_sym_session_free(session) < 0)
VC_LOG_ERR("Failed to free session");
}
sess_param->session_id = -VIRTIO_CRYPTO_ERR;
return;
}
VC_LOG_INFO("Session %"PRIu64" created for vdev %i.",
vcrypto->last_session_id, vcrypto->dev->vid);
sess_param->session_id = vcrypto->last_session_id;
vcrypto->last_session_id++;
}
static int
vhost_crypto_close_sess(struct vhost_crypto *vcrypto, uint64_t session_id)
{
struct rte_cryptodev_sym_session *session;
uint64_t sess_id = session_id;
int ret;
ret = rte_hash_lookup_data(vcrypto->session_map, &sess_id,
(void **)&session);
if (unlikely(ret < 0)) {
VC_LOG_ERR("Failed to delete session %"PRIu64".", session_id);
return -VIRTIO_CRYPTO_INVSESS;
}
if (rte_cryptodev_sym_session_clear(vcrypto->cid, session) < 0) {
VC_LOG_DBG("Failed to clear session");
return -VIRTIO_CRYPTO_ERR;
}
if (rte_cryptodev_sym_session_free(session) < 0) {
VC_LOG_DBG("Failed to free session");
return -VIRTIO_CRYPTO_ERR;
}
if (rte_hash_del_key(vcrypto->session_map, &sess_id) < 0) {
VC_LOG_DBG("Failed to delete session from hash table.");
return -VIRTIO_CRYPTO_ERR;
}
VC_LOG_INFO("Session %"PRIu64" deleted for vdev %i.", sess_id,
vcrypto->dev->vid);
return 0;
}
static int
vhost_crypto_msg_post_handler(int vid, void *msg, uint32_t *require_reply)
{
struct virtio_net *dev = get_device(vid);
struct vhost_crypto *vcrypto;
VhostUserMsg *vmsg = msg;
int ret = 0;
if (dev == NULL || require_reply == NULL) {
VC_LOG_ERR("Invalid vid %i", vid);
return -EINVAL;
}
vcrypto = dev->extern_data;
if (vcrypto == NULL) {
VC_LOG_ERR("Cannot find required data, is it initialized?");
return -ENOENT;
}
*require_reply = 0;
if (vmsg->request.master == VHOST_USER_CRYPTO_CREATE_SESS) {
vhost_crypto_create_sess(vcrypto,
&vmsg->payload.crypto_session);
*require_reply = 1;
} else if (vmsg->request.master == VHOST_USER_CRYPTO_CLOSE_SESS)
ret = vhost_crypto_close_sess(vcrypto, vmsg->payload.u64);
else
ret = -EINVAL;
return ret;
}

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@ -67,6 +67,8 @@ static const char *vhost_message_str[VHOST_USER_MAX] = {
[VHOST_USER_NET_SET_MTU] = "VHOST_USER_NET_SET_MTU",
[VHOST_USER_SET_SLAVE_REQ_FD] = "VHOST_USER_SET_SLAVE_REQ_FD",
[VHOST_USER_IOTLB_MSG] = "VHOST_USER_IOTLB_MSG",
[VHOST_USER_CRYPTO_CREATE_SESS] = "VHOST_USER_CRYPTO_CREATE_SESS",
[VHOST_USER_CRYPTO_CLOSE_SESS] = "VHOST_USER_CRYPTO_CLOSE_SESS",
};
static uint64_t