[dpdk-dev] [PATCH v6 3/8] lib/librte_vhost: add session message handler
Fan Zhang
roy.fan.zhang at intel.com
Wed Apr 4 16:24:59 CEST 2018
This patch adds session message handler to vhost crypto.
Signed-off-by: Fan Zhang <roy.fan.zhang at intel.com>
---
lib/librte_vhost/vhost_crypto.c | 435 ++++++++++++++++++++++++++++++++++++++++
lib/librte_vhost/vhost_user.c | 2 +
2 files changed, 437 insertions(+)
create mode 100644 lib/librte_vhost/vhost_crypto.c
diff --git a/lib/librte_vhost/vhost_crypto.c b/lib/librte_vhost/vhost_crypto.c
new file mode 100644
index 000000000..34587c27e
--- /dev/null
+++ b/lib/librte_vhost/vhost_crypto.c
@@ -0,0 +1,435 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Intel Corporation
+ */
+#include <linux/virtio_crypto.h>
+
+#include <rte_malloc.h>
+#include <rte_hash.h>
+#include <rte_mbuf.h>
+#include <rte_cryptodev.h>
+
+#include "vhost.h"
+#include "vhost_user.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_DBG("Session (key %lu, session %p) created.",
+ vcrypto->last_session_id, session);
+
+ 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 (key %lu).", session_id);
+ return -VIRTIO_CRYPTO_INVSESS;
+ }
+
+ if (rte_cryptodev_sym_session_clear(vcrypto->cid, session) < 0) {
+ VC_LOG_DBG("Failed to delete session");
+ return -VIRTIO_CRYPTO_ERR;
+ }
+
+ if (rte_cryptodev_sym_session_free(session) < 0) {
+ VC_LOG_DBG("Failed to delete 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_DBG("Session (key %lu, session %p) deleted.", sess_id,
+ session);
+
+ 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;
+}
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index a435cce17..3117c6330 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -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
--
2.13.6
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