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path: root/drivers/crypto/libcrypto/rte_libcrypto_pmd.c
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Diffstat (limited to 'drivers/crypto/libcrypto/rte_libcrypto_pmd.c')
-rw-r--r--drivers/crypto/libcrypto/rte_libcrypto_pmd.c1061
1 files changed, 1061 insertions, 0 deletions
diff --git a/drivers/crypto/libcrypto/rte_libcrypto_pmd.c b/drivers/crypto/libcrypto/rte_libcrypto_pmd.c
new file mode 100644
index 0000000..535fb57
--- /dev/null
+++ b/drivers/crypto/libcrypto/rte_libcrypto_pmd.c
@@ -0,0 +1,1061 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <rte_common.h>
+#include <rte_hexdump.h>
+#include <rte_cryptodev.h>
+#include <rte_cryptodev_pmd.h>
+#include <rte_vdev.h>
+#include <rte_malloc.h>
+#include <rte_cpuflags.h>
+
+#include <openssl/evp.h>
+
+#include "rte_libcrypto_pmd_private.h"
+
+static int cryptodev_libcrypto_uninit(const char *name);
+
+/*----------------------------------------------------------------------------*/
+
+/**
+ * Global static parameter used to create a unique name for each
+ * LIBCRYPTO crypto device.
+ */
+static unsigned int unique_name_id;
+
+static inline int
+create_unique_device_name(char *name, size_t size)
+{
+ int ret;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ ret = snprintf(name, size, "%s_%u",
+ RTE_STR(CRYPTODEV_NAME_LIBCRYPTO_PMD),
+ unique_name_id++);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+/**
+ * Increment counter by 1
+ * Counter is 64 bit array, big-endian
+ */
+static void
+ctr_inc(uint8_t *ctr)
+{
+ uint64_t *ctr64 = (uint64_t *)ctr;
+
+ *ctr64 = __builtin_bswap64(*ctr64);
+ (*ctr64)++;
+ *ctr64 = __builtin_bswap64(*ctr64);
+}
+
+/*
+ *------------------------------------------------------------------------------
+ * Session Prepare
+ *------------------------------------------------------------------------------
+ */
+
+/** Get xform chain order */
+static enum libcrypto_chain_order
+libcrypto_get_chain_order(const struct rte_crypto_sym_xform *xform)
+{
+ enum libcrypto_chain_order res = LIBCRYPTO_CHAIN_NOT_SUPPORTED;
+
+ if (xform != NULL) {
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
+ if (xform->next == NULL)
+ res = LIBCRYPTO_CHAIN_ONLY_AUTH;
+ else if (xform->next->type ==
+ RTE_CRYPTO_SYM_XFORM_CIPHER)
+ res = LIBCRYPTO_CHAIN_AUTH_CIPHER;
+ }
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
+ if (xform->next == NULL)
+ res = LIBCRYPTO_CHAIN_ONLY_CIPHER;
+ else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
+ res = LIBCRYPTO_CHAIN_CIPHER_AUTH;
+ }
+ }
+
+ return res;
+}
+
+/** Get session cipher key from input cipher key */
+static void
+get_cipher_key(uint8_t *input_key, int keylen, uint8_t *session_key)
+{
+ memcpy(session_key, input_key, keylen);
+}
+
+/** Get key ede 24 bytes standard from input key */
+static int
+get_cipher_key_ede(uint8_t *key, int keylen, uint8_t *key_ede)
+{
+ int res = 0;
+
+ /* Initialize keys - 24 bytes: [key1-key2-key3] */
+ switch (keylen) {
+ case 24:
+ memcpy(key_ede, key, 24);
+ break;
+ case 16:
+ /* K3 = K1 */
+ memcpy(key_ede, key, 16);
+ memcpy(key_ede + 16, key, 8);
+ break;
+ case 8:
+ /* K1 = K2 = K3 (DES compatibility) */
+ memcpy(key_ede, key, 8);
+ memcpy(key_ede + 8, key, 8);
+ memcpy(key_ede + 16, key, 8);
+ break;
+ default:
+ LIBCRYPTO_LOG_ERR("Unsupported key size");
+ res = -EINVAL;
+ }
+
+ return res;
+}
+
+/** Get adequate libcrypto function for input cipher algorithm */
+static uint8_t
+get_cipher_algo(enum rte_crypto_cipher_algorithm sess_algo, size_t keylen,
+ const EVP_CIPHER **algo)
+{
+ int res = 0;
+
+ if (algo != NULL) {
+ switch (sess_algo) {
+ case RTE_CRYPTO_CIPHER_3DES_CBC:
+ switch (keylen) {
+ case 16:
+ *algo = EVP_des_ede_cbc();
+ break;
+ case 24:
+ *algo = EVP_des_ede3_cbc();
+ break;
+ default:
+ res = -EINVAL;
+ }
+ break;
+ case RTE_CRYPTO_CIPHER_3DES_CTR:
+ break;
+ case RTE_CRYPTO_CIPHER_AES_CBC:
+ switch (keylen) {
+ case 16:
+ *algo = EVP_aes_128_cbc();
+ break;
+ case 24:
+ *algo = EVP_aes_192_cbc();
+ break;
+ case 32:
+ *algo = EVP_aes_256_cbc();
+ break;
+ default:
+ res = -EINVAL;
+ }
+ break;
+ case RTE_CRYPTO_CIPHER_AES_CTR:
+ switch (keylen) {
+ case 16:
+ *algo = EVP_aes_128_ctr();
+ break;
+ case 24:
+ *algo = EVP_aes_192_ctr();
+ break;
+ case 32:
+ *algo = EVP_aes_256_ctr();
+ break;
+ default:
+ res = -EINVAL;
+ }
+ break;
+ case RTE_CRYPTO_CIPHER_AES_GCM:
+ switch (keylen) {
+ case 16:
+ *algo = EVP_aes_128_gcm();
+ break;
+ case 24:
+ *algo = EVP_aes_192_gcm();
+ break;
+ case 32:
+ *algo = EVP_aes_256_gcm();
+ break;
+ default:
+ res = -EINVAL;
+ }
+ break;
+ default:
+ res = -EINVAL;
+ break;
+ }
+ } else {
+ res = -EINVAL;
+ }
+
+ return res;
+}
+
+/** Get adequate libcrypto function for input auth algorithm */
+static uint8_t
+get_auth_algo(enum rte_crypto_auth_algorithm sessalgo,
+ const EVP_MD **algo)
+{
+ int res = 0;
+
+ if (algo != NULL) {
+ switch (sessalgo) {
+ case RTE_CRYPTO_AUTH_MD5:
+ case RTE_CRYPTO_AUTH_MD5_HMAC:
+ *algo = EVP_md5();
+ break;
+ case RTE_CRYPTO_AUTH_SHA1:
+ case RTE_CRYPTO_AUTH_SHA1_HMAC:
+ *algo = EVP_sha1();
+ break;
+ case RTE_CRYPTO_AUTH_SHA224:
+ case RTE_CRYPTO_AUTH_SHA224_HMAC:
+ *algo = EVP_sha224();
+ break;
+ case RTE_CRYPTO_AUTH_SHA256:
+ case RTE_CRYPTO_AUTH_SHA256_HMAC:
+ *algo = EVP_sha256();
+ break;
+ case RTE_CRYPTO_AUTH_SHA384:
+ case RTE_CRYPTO_AUTH_SHA384_HMAC:
+ *algo = EVP_sha384();
+ break;
+ case RTE_CRYPTO_AUTH_SHA512:
+ case RTE_CRYPTO_AUTH_SHA512_HMAC:
+ *algo = EVP_sha512();
+ break;
+ default:
+ res = -EINVAL;
+ break;
+ }
+ } else {
+ res = -EINVAL;
+ }
+
+ return res;
+}
+
+/** Set session cipher parameters */
+static int
+libcrypto_set_session_cipher_parameters(struct libcrypto_session *sess,
+ const struct rte_crypto_sym_xform *xform)
+{
+ /* Select cipher direction */
+ sess->cipher.direction = xform->cipher.op;
+ /* Select cipher key */
+ sess->cipher.key.length = xform->cipher.key.length;
+
+ /* Select cipher algo */
+ switch (xform->cipher.algo) {
+ case RTE_CRYPTO_CIPHER_3DES_CBC:
+ case RTE_CRYPTO_CIPHER_AES_CBC:
+ case RTE_CRYPTO_CIPHER_AES_CTR:
+ case RTE_CRYPTO_CIPHER_AES_GCM:
+ sess->cipher.mode = LIBCRYPTO_CIPHER_LIB;
+ sess->cipher.algo = xform->cipher.algo;
+ sess->cipher.ctx = EVP_CIPHER_CTX_new();
+
+ if (get_cipher_algo(sess->cipher.algo, sess->cipher.key.length,
+ &sess->cipher.evp_algo) != 0)
+ return -EINVAL;
+
+ get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
+ sess->cipher.key.data);
+
+ break;
+
+ case RTE_CRYPTO_CIPHER_3DES_CTR:
+ sess->cipher.mode = LIBCRYPTO_CIPHER_DES3CTR;
+ sess->cipher.ctx = EVP_CIPHER_CTX_new();
+
+ if (get_cipher_key_ede(xform->cipher.key.data,
+ sess->cipher.key.length,
+ sess->cipher.key.data) != 0)
+ return -EINVAL;
+ break;
+
+ default:
+ sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Set session auth parameters */
+static int
+libcrypto_set_session_auth_parameters(struct libcrypto_session *sess,
+ const struct rte_crypto_sym_xform *xform)
+{
+ /* Select auth generate/verify */
+ sess->auth.operation = xform->auth.op;
+ sess->auth.algo = xform->auth.algo;
+
+ /* Select auth algo */
+ switch (xform->auth.algo) {
+ case RTE_CRYPTO_AUTH_AES_GMAC:
+ case RTE_CRYPTO_AUTH_AES_GCM:
+ /* Check additional condition for AES_GMAC/GCM */
+ if (sess->cipher.algo != RTE_CRYPTO_CIPHER_AES_GCM)
+ return -EINVAL;
+ sess->chain_order = LIBCRYPTO_CHAIN_COMBINED;
+ break;
+
+ case RTE_CRYPTO_AUTH_MD5:
+ case RTE_CRYPTO_AUTH_SHA1:
+ case RTE_CRYPTO_AUTH_SHA224:
+ case RTE_CRYPTO_AUTH_SHA256:
+ case RTE_CRYPTO_AUTH_SHA384:
+ case RTE_CRYPTO_AUTH_SHA512:
+ sess->auth.mode = LIBCRYPTO_AUTH_AS_AUTH;
+ if (get_auth_algo(xform->auth.algo,
+ &sess->auth.auth.evp_algo) != 0)
+ return -EINVAL;
+ sess->auth.auth.ctx = EVP_MD_CTX_create();
+ break;
+
+ case RTE_CRYPTO_AUTH_MD5_HMAC:
+ case RTE_CRYPTO_AUTH_SHA1_HMAC:
+ case RTE_CRYPTO_AUTH_SHA224_HMAC:
+ case RTE_CRYPTO_AUTH_SHA256_HMAC:
+ case RTE_CRYPTO_AUTH_SHA384_HMAC:
+ case RTE_CRYPTO_AUTH_SHA512_HMAC:
+ sess->auth.mode = LIBCRYPTO_AUTH_AS_HMAC;
+ sess->auth.hmac.ctx = EVP_MD_CTX_create();
+ if (get_auth_algo(xform->auth.algo,
+ &sess->auth.hmac.evp_algo) != 0)
+ return -EINVAL;
+ sess->auth.hmac.pkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL,
+ xform->auth.key.data, xform->auth.key.length);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/** Parse crypto xform chain and set private session parameters */
+int
+libcrypto_set_session_parameters(struct libcrypto_session *sess,
+ const struct rte_crypto_sym_xform *xform)
+{
+ const struct rte_crypto_sym_xform *cipher_xform = NULL;
+ const struct rte_crypto_sym_xform *auth_xform = NULL;
+
+ sess->chain_order = libcrypto_get_chain_order(xform);
+ switch (sess->chain_order) {
+ case LIBCRYPTO_CHAIN_ONLY_CIPHER:
+ cipher_xform = xform;
+ break;
+ case LIBCRYPTO_CHAIN_ONLY_AUTH:
+ auth_xform = xform;
+ break;
+ case LIBCRYPTO_CHAIN_CIPHER_AUTH:
+ cipher_xform = xform;
+ auth_xform = xform->next;
+ break;
+ case LIBCRYPTO_CHAIN_AUTH_CIPHER:
+ auth_xform = xform;
+ cipher_xform = xform->next;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* cipher_xform must be check before auth_xform */
+ if (cipher_xform) {
+ if (libcrypto_set_session_cipher_parameters(
+ sess, cipher_xform)) {
+ LIBCRYPTO_LOG_ERR(
+ "Invalid/unsupported cipher parameters");
+ return -EINVAL;
+ }
+ }
+
+ if (auth_xform) {
+ if (libcrypto_set_session_auth_parameters(sess, auth_xform)) {
+ LIBCRYPTO_LOG_ERR(
+ "Invalid/unsupported auth parameters");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+/** Reset private session parameters */
+void
+libcrypto_reset_session(struct libcrypto_session *sess)
+{
+ EVP_CIPHER_CTX_free(sess->cipher.ctx);
+
+ switch (sess->auth.mode) {
+ case LIBCRYPTO_AUTH_AS_AUTH:
+ EVP_MD_CTX_destroy(sess->auth.auth.ctx);
+ break;
+ case LIBCRYPTO_AUTH_AS_HMAC:
+ EVP_PKEY_free(sess->auth.hmac.pkey);
+ EVP_MD_CTX_destroy(sess->auth.hmac.ctx);
+ break;
+ default:
+ break;
+ }
+}
+
+/** Provide session for operation */
+static struct libcrypto_session *
+get_session(struct libcrypto_qp *qp, struct rte_crypto_op *op)
+{
+ struct libcrypto_session *sess = NULL;
+
+ if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_WITH_SESSION) {
+ /* get existing session */
+ if (likely(op->sym->session != NULL &&
+ op->sym->session->dev_type ==
+ RTE_CRYPTODEV_LIBCRYPTO_PMD))
+ sess = (struct libcrypto_session *)
+ op->sym->session->_private;
+ } else {
+ /* provide internal session */
+ void *_sess = NULL;
+
+ if (!rte_mempool_get(qp->sess_mp, (void **)&_sess)) {
+ sess = (struct libcrypto_session *)
+ ((struct rte_cryptodev_sym_session *)_sess)
+ ->_private;
+
+ if (unlikely(libcrypto_set_session_parameters(
+ sess, op->sym->xform) != 0)) {
+ rte_mempool_put(qp->sess_mp, _sess);
+ sess = NULL;
+ } else
+ op->sym->session = _sess;
+ }
+ }
+
+ if (sess == NULL)
+ op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
+
+ return sess;
+}
+
+/*
+ *------------------------------------------------------------------------------
+ * Process Operations
+ *------------------------------------------------------------------------------
+ */
+
+/** Process standard libcrypto cipher encryption */
+static int
+process_libcrypto_cipher_encrypt(uint8_t *src, uint8_t *dst,
+ uint8_t *iv, uint8_t *key, int srclen,
+ EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
+{
+ int dstlen, totlen;
+
+ if (EVP_EncryptInit_ex(ctx, algo, NULL, key, iv) <= 0)
+ goto process_cipher_encrypt_err;
+
+ if (EVP_EncryptUpdate(ctx, dst, &dstlen, src, srclen) <= 0)
+ goto process_cipher_encrypt_err;
+
+ if (EVP_EncryptFinal_ex(ctx, dst + dstlen, &totlen) <= 0)
+ goto process_cipher_encrypt_err;
+
+ return 0;
+
+process_cipher_encrypt_err:
+ LIBCRYPTO_LOG_ERR("Process libcrypto cipher encrypt failed");
+ return -EINVAL;
+}
+
+/** Process standard libcrypto cipher decryption */
+static int
+process_libcrypto_cipher_decrypt(uint8_t *src, uint8_t *dst,
+ uint8_t *iv, uint8_t *key, int srclen,
+ EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
+{
+ int dstlen, totlen;
+
+ if (EVP_DecryptInit_ex(ctx, algo, NULL, key, iv) <= 0)
+ goto process_cipher_decrypt_err;
+
+ if (EVP_CIPHER_CTX_set_padding(ctx, 0) <= 0)
+ goto process_cipher_decrypt_err;
+
+ if (EVP_DecryptUpdate(ctx, dst, &dstlen, src, srclen) <= 0)
+ goto process_cipher_decrypt_err;
+
+ if (EVP_DecryptFinal_ex(ctx, dst + dstlen, &totlen) <= 0)
+ goto process_cipher_decrypt_err;
+
+ return 0;
+
+process_cipher_decrypt_err:
+ LIBCRYPTO_LOG_ERR("Process libcrypto cipher decrypt failed");
+ return -EINVAL;
+}
+
+/** Process cipher des 3 ctr encryption, decryption algorithm */
+static int
+process_libcrypto_cipher_des3ctr(uint8_t *src, uint8_t *dst,
+ uint8_t *iv, uint8_t *key, int srclen, EVP_CIPHER_CTX *ctx)
+{
+ uint8_t ebuf[8], ctr[8];
+ int unused, n;
+
+ /* We use 3DES encryption also for decryption.
+ * IV is not important for 3DES ecb
+ */
+ if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
+ goto process_cipher_des3ctr_err;
+
+ memcpy(ctr, iv, 8);
+ n = 0;
+
+ while (n < srclen) {
+ if (n % 8 == 0) {
+ if (EVP_EncryptUpdate(ctx,
+ (unsigned char *)&ebuf, &unused,
+ (const unsigned char *)&ctr, 8) <= 0)
+ goto process_cipher_des3ctr_err;
+ ctr_inc(ctr);
+ }
+ dst[n] = src[n] ^ ebuf[n % 8];
+ n++;
+ }
+
+ return 0;
+
+process_cipher_des3ctr_err:
+ LIBCRYPTO_LOG_ERR("Process libcrypto cipher des 3 ede ctr failed");
+ return -EINVAL;
+}
+
+/** Process auth/encription aes-gcm algorithm */
+static int
+process_libcrypto_auth_encryption_gcm(uint8_t *src, int srclen,
+ uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
+ uint8_t *key, uint8_t *dst, uint8_t *tag,
+ EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
+{
+ int len = 0, unused = 0;
+ uint8_t empty[] = {};
+
+ if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
+ goto process_auth_encryption_gcm_err;
+
+ if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
+ goto process_auth_encryption_gcm_err;
+
+ if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
+ goto process_auth_encryption_gcm_err;
+
+ if (aadlen > 0) {
+ if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
+ goto process_auth_encryption_gcm_err;
+
+ /* Workaround open ssl bug in version less then 1.0.1f */
+ if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
+ goto process_auth_encryption_gcm_err;
+ }
+
+ if (srclen > 0)
+ if (EVP_EncryptUpdate(ctx, dst, &len, src, srclen) <= 0)
+ goto process_auth_encryption_gcm_err;
+
+ if (EVP_EncryptFinal_ex(ctx, dst + len, &len) <= 0)
+ goto process_auth_encryption_gcm_err;
+
+ if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
+ goto process_auth_encryption_gcm_err;
+
+ return 0;
+
+process_auth_encryption_gcm_err:
+ LIBCRYPTO_LOG_ERR("Process libcrypto auth encryption gcm failed");
+ return -EINVAL;
+}
+
+static int
+process_libcrypto_auth_decryption_gcm(uint8_t *src, int srclen,
+ uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
+ uint8_t *key, uint8_t *dst, uint8_t *tag,
+ EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
+{
+ int len = 0, unused = 0;
+ uint8_t empty[] = {};
+
+ if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
+ goto process_auth_decryption_gcm_err;
+
+ if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
+ goto process_auth_decryption_gcm_err;
+
+ if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
+ goto process_auth_decryption_gcm_err;
+
+ if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
+ goto process_auth_decryption_gcm_err;
+
+ if (aadlen > 0) {
+ if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
+ goto process_auth_decryption_gcm_err;
+
+ /* Workaround open ssl bug in version less then 1.0.1f */
+ if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
+ goto process_auth_decryption_gcm_err;
+ }
+
+ if (srclen > 0)
+ if (EVP_DecryptUpdate(ctx, dst, &len, src, srclen) <= 0)
+ goto process_auth_decryption_gcm_err;
+
+ if (EVP_DecryptFinal_ex(ctx, dst + len, &len) <= 0)
+ goto process_auth_decryption_gcm_final_err;
+
+ return 0;
+
+process_auth_decryption_gcm_err:
+ LIBCRYPTO_LOG_ERR("Process libcrypto auth description gcm failed");
+ return -EINVAL;
+
+process_auth_decryption_gcm_final_err:
+ return -EFAULT;
+}
+
+/** Process standard libcrypto auth algorithms */
+static int
+process_libcrypto_auth(uint8_t *src, uint8_t *dst,
+ __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
+ int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
+{
+ size_t dstlen;
+
+ if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
+ goto process_auth_err;
+
+ if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
+ goto process_auth_err;
+
+ if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
+ goto process_auth_err;
+
+ return 0;
+
+process_auth_err:
+ LIBCRYPTO_LOG_ERR("Process libcrypto auth failed");
+ return -EINVAL;
+}
+
+/** Process standard libcrypto auth algorithms with hmac */
+static int
+process_libcrypto_auth_hmac(uint8_t *src, uint8_t *dst,
+ __rte_unused uint8_t *iv, EVP_PKEY *pkey,
+ int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
+{
+ size_t dstlen;
+
+ if (EVP_DigestSignInit(ctx, NULL, algo, NULL, pkey) <= 0)
+ goto process_auth_err;
+
+ if (EVP_DigestSignUpdate(ctx, (char *)src, srclen) <= 0)
+ goto process_auth_err;
+
+ if (EVP_DigestSignFinal(ctx, dst, &dstlen) <= 0)
+ goto process_auth_err;
+
+ return 0;
+
+process_auth_err:
+ LIBCRYPTO_LOG_ERR("Process libcrypto auth failed");
+ return -EINVAL;
+}
+
+/*----------------------------------------------------------------------------*/
+
+/** Process auth/cipher combined operation */
+static void
+process_libcrypto_combined_op
+ (struct rte_crypto_op *op, struct libcrypto_session *sess,
+ struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
+{
+ /* cipher */
+ uint8_t *src = NULL, *dst = NULL, *iv, *tag, *aad;
+ int srclen, ivlen, aadlen, status = -1;
+
+ iv = op->sym->cipher.iv.data;
+ ivlen = op->sym->cipher.iv.length;
+ aad = op->sym->auth.aad.data;
+ aadlen = op->sym->auth.aad.length;
+
+ tag = op->sym->auth.digest.data;
+ if (tag == NULL)
+ tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
+ op->sym->cipher.data.offset +
+ op->sym->cipher.data.length);
+
+ if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
+ srclen = 0;
+ else {
+ srclen = op->sym->cipher.data.length;
+ src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
+ op->sym->cipher.data.offset);
+ dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
+ op->sym->cipher.data.offset);
+ }
+
+ if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
+ status = process_libcrypto_auth_encryption_gcm(
+ src, srclen, aad, aadlen, iv, ivlen,
+ sess->cipher.key.data, dst, tag,
+ sess->cipher.ctx, sess->cipher.evp_algo);
+ else
+ status = process_libcrypto_auth_decryption_gcm(
+ src, srclen, aad, aadlen, iv, ivlen,
+ sess->cipher.key.data, dst, tag,
+ sess->cipher.ctx, sess->cipher.evp_algo);
+
+ if (status != 0) {
+ if (status == (-EFAULT) &&
+ sess->auth.operation ==
+ RTE_CRYPTO_AUTH_OP_VERIFY)
+ op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
+ else
+ op->status = RTE_CRYPTO_OP_STATUS_ERROR;
+ }
+}
+
+/** Process cipher operation */
+static void
+process_libcrypto_cipher_op
+ (struct rte_crypto_op *op, struct libcrypto_session *sess,
+ struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
+{
+ uint8_t *src, *dst, *iv;
+ int srclen, status;
+
+ srclen = op->sym->cipher.data.length;
+ src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
+ op->sym->cipher.data.offset);
+ dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
+ op->sym->cipher.data.offset);
+
+ iv = op->sym->cipher.iv.data;
+
+ if (sess->cipher.mode == LIBCRYPTO_CIPHER_LIB)
+ if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
+ status = process_libcrypto_cipher_encrypt(src, dst, iv,
+ sess->cipher.key.data, srclen,
+ sess->cipher.ctx,
+ sess->cipher.evp_algo);
+ else
+ status = process_libcrypto_cipher_decrypt(src, dst, iv,
+ sess->cipher.key.data, srclen,
+ sess->cipher.ctx,
+ sess->cipher.evp_algo);
+ else
+ status = process_libcrypto_cipher_des3ctr(src, dst, iv,
+ sess->cipher.key.data, srclen,
+ sess->cipher.ctx);
+
+ if (status != 0)
+ op->status = RTE_CRYPTO_OP_STATUS_ERROR;
+}
+
+/** Process auth operation */
+static void
+process_libcrypto_auth_op
+ (struct rte_crypto_op *op, struct libcrypto_session *sess,
+ struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
+{
+ uint8_t *src, *dst;
+ int srclen, status;
+
+ srclen = op->sym->auth.data.length;
+ src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
+ op->sym->auth.data.offset);
+
+ if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
+ dst = (uint8_t *)rte_pktmbuf_append(mbuf_src,
+ op->sym->auth.digest.length);
+ 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);
+ }
+
+ switch (sess->auth.mode) {
+ case LIBCRYPTO_AUTH_AS_AUTH:
+ status = process_libcrypto_auth(src, dst,
+ NULL, NULL, srclen,
+ sess->auth.auth.ctx, sess->auth.auth.evp_algo);
+ break;
+ case LIBCRYPTO_AUTH_AS_HMAC:
+ status = process_libcrypto_auth_hmac(src, dst,
+ NULL, sess->auth.hmac.pkey, srclen,
+ sess->auth.hmac.ctx, sess->auth.hmac.evp_algo);
+ break;
+ default:
+ status = -1;
+ break;
+ }
+
+ if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
+ if (memcmp(dst, op->sym->auth.digest.data,
+ op->sym->auth.digest.length) != 0) {
+ op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
+ }
+ /* Trim area used for digest from mbuf. */
+ rte_pktmbuf_trim(mbuf_src,
+ op->sym->auth.digest.length);
+ }
+
+ if (status != 0)
+ op->status = RTE_CRYPTO_OP_STATUS_ERROR;
+}
+
+/** Process crypto operation for mbuf */
+static int
+process_op(const struct libcrypto_qp *qp, struct rte_crypto_op *op,
+ struct libcrypto_session *sess)
+{
+ struct rte_mbuf *msrc, *mdst;
+ int retval;
+
+ msrc = op->sym->m_src;
+ mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
+
+ op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
+
+ switch (sess->chain_order) {
+ case LIBCRYPTO_CHAIN_ONLY_CIPHER:
+ process_libcrypto_cipher_op(op, sess, msrc, mdst);
+ break;
+ case LIBCRYPTO_CHAIN_ONLY_AUTH:
+ process_libcrypto_auth_op(op, sess, msrc, mdst);
+ break;
+ case LIBCRYPTO_CHAIN_CIPHER_AUTH:
+ process_libcrypto_cipher_op(op, sess, msrc, mdst);
+ process_libcrypto_auth_op(op, sess, mdst, mdst);
+ break;
+ case LIBCRYPTO_CHAIN_AUTH_CIPHER:
+ process_libcrypto_auth_op(op, sess, msrc, mdst);
+ process_libcrypto_cipher_op(op, sess, msrc, mdst);
+ break;
+ case LIBCRYPTO_CHAIN_COMBINED:
+ process_libcrypto_combined_op(op, sess, msrc, mdst);
+ break;
+ default:
+ op->status = RTE_CRYPTO_OP_STATUS_ERROR;
+ break;
+ }
+
+ /* Free session if a session-less crypto op */
+ if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) {
+ libcrypto_reset_session(sess);
+ memset(sess, 0, sizeof(struct libcrypto_session));
+ rte_mempool_put(qp->sess_mp, op->sym->session);
+ op->sym->session = NULL;
+ }
+
+
+ if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
+ op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
+
+ if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
+ retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
+ else
+ retval = -1;
+
+ return retval;
+}
+
+/*
+ *------------------------------------------------------------------------------
+ * PMD Framework
+ *------------------------------------------------------------------------------
+ */
+
+/** Enqueue burst */
+static uint16_t
+libcrypto_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
+ uint16_t nb_ops)
+{
+ struct libcrypto_session *sess;
+ struct libcrypto_qp *qp = queue_pair;
+ int i, retval;
+
+ for (i = 0; i < nb_ops; i++) {
+ sess = get_session(qp, ops[i]);
+ if (unlikely(sess == NULL))
+ goto enqueue_err;
+
+ retval = process_op(qp, ops[i], sess);
+ if (unlikely(retval < 0))
+ goto enqueue_err;
+ }
+
+ qp->stats.enqueued_count += i;
+ return i;
+
+enqueue_err:
+ qp->stats.enqueue_err_count++;
+ return i;
+}
+
+/** Dequeue burst */
+static uint16_t
+libcrypto_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
+ uint16_t nb_ops)
+{
+ struct libcrypto_qp *qp = queue_pair;
+
+ unsigned int nb_dequeued = 0;
+
+ nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
+ (void **)ops, nb_ops);
+ qp->stats.dequeued_count += nb_dequeued;
+
+ return nb_dequeued;
+}
+
+/** Create LIBCRYPTO crypto device */
+static int
+cryptodev_libcrypto_create(const char *name,
+ struct rte_crypto_vdev_init_params *init_params)
+{
+ struct rte_cryptodev *dev;
+ char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
+ struct libcrypto_private *internals;
+
+ /* create a unique device name */
+ if (create_unique_device_name(crypto_dev_name,
+ RTE_CRYPTODEV_NAME_MAX_LEN) != 0) {
+ LIBCRYPTO_LOG_ERR("failed to create unique cryptodev name");
+ return -EINVAL;
+ }
+
+ dev = rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name,
+ sizeof(struct libcrypto_private),
+ init_params->socket_id);
+ if (dev == NULL) {
+ LIBCRYPTO_LOG_ERR("failed to create cryptodev vdev");
+ goto init_error;
+ }
+
+ dev->dev_type = RTE_CRYPTODEV_LIBCRYPTO_PMD;
+ dev->dev_ops = rte_libcrypto_pmd_ops;
+
+ /* register rx/tx burst functions for data path */
+ dev->dequeue_burst = libcrypto_pmd_dequeue_burst;
+ dev->enqueue_burst = libcrypto_pmd_enqueue_burst;
+
+ dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
+ RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
+ RTE_CRYPTODEV_FF_CPU_AESNI;
+
+ /* Set vector instructions mode supported */
+ internals = dev->data->dev_private;
+
+ internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
+ internals->max_nb_sessions = init_params->max_nb_sessions;
+
+ return 0;
+
+init_error:
+ LIBCRYPTO_LOG_ERR("driver %s: cryptodev_libcrypto_create failed", name);
+
+ cryptodev_libcrypto_uninit(crypto_dev_name);
+ return -EFAULT;
+}
+
+/** Initialise LIBCRYPTO crypto device */
+static int
+cryptodev_libcrypto_init(const char *name,
+ const char *input_args)
+{
+ struct rte_crypto_vdev_init_params init_params = {
+ RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
+ RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
+ rte_socket_id()
+ };
+
+ rte_cryptodev_parse_vdev_init_params(&init_params, input_args);
+
+ RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
+ init_params.socket_id);
+ RTE_LOG(INFO, PMD, " Max number of queue pairs = %d\n",
+ init_params.max_nb_queue_pairs);
+ RTE_LOG(INFO, PMD, " Max number of sessions = %d\n",
+ init_params.max_nb_sessions);
+
+ return cryptodev_libcrypto_create(name, &init_params);
+}
+
+/** Uninitialise LIBCRYPTO crypto device */
+static int
+cryptodev_libcrypto_uninit(const char *name)
+{
+ if (name == NULL)
+ return -EINVAL;
+
+ RTE_LOG(INFO, PMD,
+ "Closing LIBCRYPTO crypto device %s on numa socket %u\n",
+ name, rte_socket_id());
+
+ return 0;
+}
+
+static struct rte_vdev_driver cryptodev_libcrypto_pmd_drv = {
+ .probe = cryptodev_libcrypto_init,
+ .remove = cryptodev_libcrypto_uninit
+};
+
+DRIVER_REGISTER_VDEV(CRYPTODEV_NAME_LIBCRYPTO_PMD, cryptodev_libcrypto_pmd_drv);
+DRIVER_REGISTER_PARAM_STRING(CRYPTODEV_NAME_LIBCRYPTO_PMD,
+ "max_nb_queue_pairs=<int> "
+ "max_nb_sessions=<int> "
+ "socket_id=<int>");