From patchwork Mon Nov 6 06:56:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Longpeng(Mike)" X-Patchwork-Id: 10042657 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6487560247 for ; Mon, 6 Nov 2017 07:04:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 52D5C29907 for ; Mon, 6 Nov 2017 07:04:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 473D52990B; Mon, 6 Nov 2017 07:04:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0AB1729909 for ; Mon, 6 Nov 2017 07:03:58 +0000 (UTC) Received: from localhost ([::1]:46734 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eBbRt-0002CE-SS for patchwork-qemu-devel@patchwork.kernel.org; Mon, 06 Nov 2017 02:03:57 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49785) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eBbLa-0006Gm-Ge for qemu-devel@nongnu.org; Mon, 06 Nov 2017 01:57:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eBbLY-0008IT-2E for qemu-devel@nongnu.org; Mon, 06 Nov 2017 01:57:26 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:2330) by eggs.gnu.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.71) (envelope-from ) id 1eBbLW-0008Ao-O8 for qemu-devel@nongnu.org; Mon, 06 Nov 2017 01:57:23 -0500 Received: from 172.30.72.60 (EHLO DGGEMS405-HUB.china.huawei.com) ([172.30.72.60]) by dggrg04-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id DKI32702; Mon, 06 Nov 2017 14:57:19 +0800 (CST) Received: from localhost (10.177.246.209) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.361.1; Mon, 6 Nov 2017 14:57:09 +0800 From: "Longpeng(Mike)" To: , Date: Mon, 6 Nov 2017 14:56:59 +0800 Message-ID: <1509951422-20060-8-git-send-email-longpeng2@huawei.com> X-Mailer: git-send-email 1.8.4.msysgit.0 In-Reply-To: <1509951422-20060-1-git-send-email-longpeng2@huawei.com> References: <1509951422-20060-1-git-send-email-longpeng2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.246.209] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.5A0007D0.0034, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: f4dea901c5efefc75520ac81596d37ed X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 45.249.212.190 Subject: [Qemu-devel] [RFC 07/10] virtio-crypto: add stateless crypto request handler X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: wangxinxin.wang@huawei.com, "Longpeng\(Mike\)" , weidong.huang@huawei.com, qemu-devel@nongnu.org, jianjay.zhou@huawei.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP We can support stateless crypto request now. The stateless cipher request componet is: header + payload + key + iv + src_data + dst_data and The algorithm chainning stateless request component is: header + payload + key + auth_key + iv + aad + src_data + dst_data + hash_result Signed-off-by: Gonglei [simplify the code] Signed-off-by: Longpeng(Mike) Signed-off-by: Longpeng(Mike) --- backends/cryptodev-builtin.c | 3 +- hw/virtio/virtio-crypto.c | 311 +++++++++++++++++++++++-- include/standard-headers/linux/virtio_crypto.h | 161 +++++++++++++ include/sysemu/cryptodev.h | 3 + 4 files changed, 462 insertions(+), 16 deletions(-) diff --git a/backends/cryptodev-builtin.c b/backends/cryptodev-builtin.c index 657c0ba..6df23b9 100644 --- a/backends/cryptodev-builtin.c +++ b/backends/cryptodev-builtin.c @@ -91,7 +91,8 @@ static void cryptodev_builtin_init( * Why this value? Just avoid to overflow when * memory allocation for each crypto request. */ - backend->conf.max_size = LONG_MAX - sizeof(CryptoDevBackendSymOpInfo); + backend->conf.max_size = LONG_MAX - + sizeof(CryptoDevBackendSymStatelessInfo); backend->conf.max_cipher_key_len = CRYPTODEV_BUITLIN_MAX_CIPHER_KEY_LEN; backend->conf.max_auth_key_len = CRYPTODEV_BUITLIN_MAX_AUTH_KEY_LEN; diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c index 10a0c35..e46c4a3 100644 --- a/hw/virtio/virtio-crypto.c +++ b/hw/virtio/virtio-crypto.c @@ -38,6 +38,28 @@ static inline bool virtio_crypto_in_mux_mode(VirtIODevice *vdev) return virtio_vdev_has_feature(vdev, VIRTIO_CRYPTO_F_MUX_MODE); } +static inline bool virtio_crypto_stateless_req(VirtIODevice *vdev, + uint32_t opcode, uint32_t flag) +{ + if (!virtio_crypto_in_mux_mode(vdev)) { + return false; + } + + switch (opcode) { + case VIRTIO_CRYPTO_CIPHER_ENCRYPT: + case VIRTIO_CRYPTO_CIPHER_DECRYPT: + if (!virtio_vdev_has_feature(vdev, + VIRTIO_CRYPTO_F_CIPHER_STATELESS_MODE)) { + return false; + } + return (flag != VIRTIO_CRYPTO_FLAG_SESSION_MODE); + default: + break; + } + + return false; +} + static int virtio_crypto_cipher_session_helper(VirtIODevice *vdev, CryptoDevBackendSymSessionInfo *info, @@ -370,9 +392,10 @@ static void virtio_crypto_init_request(VirtIOCrypto *vcrypto, VirtQueue *vq, static void virtio_crypto_free_request(VirtIOCryptoReq *req) { + size_t max_len; + if (req) { if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) { - size_t max_len; CryptoDevBackendSymOpInfo *op_info = req->u.sym_op_info; max_len = op_info->iv_len + @@ -384,6 +407,21 @@ static void virtio_crypto_free_request(VirtIOCryptoReq *req) /* Zeroize and free request data structure */ memset(op_info, 0, sizeof(*op_info) + max_len); g_free(op_info); + } else if (req->flags == CRYPTODEV_BACKEND_ALG_SYM_STATELESS) { + CryptoDevBackendSymStatelessInfo *sym_stateless_info; + + sym_stateless_info = req->u.sym_stateless_info; + max_len = sym_stateless_info->session_info.key_len + + sym_stateless_info->session_info.auth_key_len + + sym_stateless_info->op_info.iv_len + + sym_stateless_info->op_info.src_len + + sym_stateless_info->op_info.dst_len + + sym_stateless_info->op_info.aad_len + + sym_stateless_info->op_info.digest_result_len; + /* Zeroize and free request data structure */ + memset(sym_stateless_info, 0, + sizeof(*sym_stateless_info) + max_len); + g_free(sym_stateless_info); } g_free(req); } @@ -431,6 +469,9 @@ static void virtio_crypto_req_complete(VirtIOCryptoReq *req, uint8_t status) if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) { virtio_crypto_sym_input_data_helper(vdev, req, status, req->u.sym_op_info); + } else if (req->flags == CRYPTODEV_BACKEND_ALG_SYM_STATELESS) { + virtio_crypto_sym_input_data_helper(vdev, req, status, + &req->u.sym_stateless_info->op_info); } stb_p(&req->in->status, status); virtqueue_push(req->vq, &req->elem, req->in_len); @@ -605,6 +646,221 @@ virtio_crypto_handle_sym_req(VirtIOCrypto *vcrypto, } static int +virtio_crypto_handle_sym_stateless_req(VirtIOCrypto *vcrypto, + struct virtio_crypto_sym_data_req_stateless *req, + CryptoDevBackendSymStatelessInfo **stateless_info, + struct iovec *iov, unsigned int out_num) +{ + VirtIODevice *vdev = VIRTIO_DEVICE(vcrypto); + CryptoDevBackendSymStatelessInfo *sym_stateless_info; + + uint32_t op_type; + uint32_t src_len = 0, dst_len = 0; + uint32_t iv_len = 0; + uint32_t aad_len = 0, hash_result_len = 0; + uint32_t hash_start_src_offset = 0, len_to_hash = 0; + uint32_t cipher_start_src_offset = 0, len_to_cipher = 0; + uint32_t key_len = 0, auth_key_len = 0; + + uint64_t max_len, curr_size = 0; + size_t s; + + op_type = ldl_le_p(&req->op_type); + + if (op_type == VIRTIO_CRYPTO_SYM_OP_CIPHER) { + key_len = ldl_le_p(&req->u.cipher.para.sess_para.keylen); + iv_len = ldl_le_p(&req->u.cipher.para.iv_len); + src_len = ldl_le_p(&req->u.cipher.para.src_data_len); + dst_len = ldl_le_p(&req->u.cipher.para.dst_data_len); + } else if (op_type == VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING) { + key_len = ldl_le_p(&req->u.chain.para.sess_para.cipher.keylen); + auth_key_len = + ldl_le_p(&req->u.chain.para.sess_para.hash.auth_key_len); + iv_len = ldl_le_p(&req->u.chain.para.iv_len); + src_len = ldl_le_p(&req->u.chain.para.src_data_len); + dst_len = ldl_le_p(&req->u.chain.para.dst_data_len); + + aad_len = ldl_le_p(&req->u.chain.para.aad_len); + hash_result_len = ldl_le_p(&req->u.chain.para.hash_result_len); + hash_start_src_offset = ldl_le_p( + &req->u.chain.para.hash_start_src_offset); + cipher_start_src_offset = ldl_le_p( + &req->u.chain.para.cipher_start_src_offset); + len_to_cipher = ldl_le_p(&req->u.chain.para.len_to_cipher); + len_to_hash = ldl_le_p(&req->u.chain.para.len_to_hash); + } else { + /* VIRTIO_CRYPTO_SYM_OP_NONE */ + error_report("virtio-crypto unsupported cipher type"); + return -VIRTIO_CRYPTO_NOTSUPP; + } + + if (key_len > vcrypto->conf.max_cipher_key_len) { + virtio_error(vdev, + "virtio-crypto length of cipher key is too big: %u", key_len); + return -EFAULT; + } + + if (auth_key_len > vcrypto->conf.max_auth_key_len) { + virtio_error(vdev, + "virtio-crypto length of auth key is too big: %u", auth_key_len); + return -EFAULT; + } + + max_len = (uint64_t)key_len + auth_key_len + iv_len + aad_len + + src_len + dst_len + hash_result_len; + if (unlikely(max_len > vcrypto->conf.max_size)) { + virtio_error(vdev, "virtio-crypto too big length"); + return -EFAULT; + } + + sym_stateless_info = + g_malloc0(sizeof(CryptoDevBackendSymStatelessInfo) + max_len); + sym_stateless_info->session_info.key_len = key_len; + sym_stateless_info->session_info.auth_key_len = auth_key_len; + sym_stateless_info->op_info.iv_len = iv_len; + sym_stateless_info->op_info.src_len = src_len; + sym_stateless_info->op_info.dst_len = dst_len; + sym_stateless_info->op_info.aad_len = aad_len; + sym_stateless_info->op_info.digest_result_len = hash_result_len; + sym_stateless_info->op_info.hash_start_src_offset = + hash_start_src_offset; + sym_stateless_info->op_info.len_to_hash = len_to_hash; + sym_stateless_info->op_info.cipher_start_src_offset = + cipher_start_src_offset; + sym_stateless_info->op_info.len_to_cipher = len_to_cipher; + + sym_stateless_info->session_info.op_type = + sym_stateless_info->op_info.op_type = op_type; + if (op_type == VIRTIO_CRYPTO_SYM_OP_CIPHER) { + sym_stateless_info->session_info.cipher_alg = + ldl_le_p(&req->u.cipher.para.sess_para.algo); + sym_stateless_info->session_info.direction = + ldl_le_p(&req->u.cipher.para.sess_para.op); + } else { /* It must be algorithm chain here */ + sym_stateless_info->session_info.cipher_alg = + ldl_le_p(&req->u.chain.para.sess_para.cipher.algo); + sym_stateless_info->session_info.direction = + ldl_le_p(&req->u.chain.para.sess_para.cipher.op); + sym_stateless_info->session_info.hash_alg = + ldl_le_p(&req->u.chain.para.sess_para.hash.algo); + sym_stateless_info->session_info.hash_mode = + ldl_le_p(&req->u.chain.para.sess_para.hash.hash_mode); + sym_stateless_info->session_info.alg_chain_order = + ldl_le_p(&req->u.chain.para.sess_para.alg_chain_order); + } + + DPRINTF("cipher_alg=%" PRIu32 ", info->direction=%" PRIu32 "\n", + sym_stateless_info->session_info.cipher_alg, + sym_stateless_info->session_info.direction); + /* Begin to parse the buffer */ + + /* + * Cipher request components: + * header + key + iv + src_data + dst_data + * + * Alg_chainning request components: + * header + key + auth_key + iv + aad + src_data + dst_data + hash_result + */ + if (key_len > 0) { + DPRINTF("key_len=%" PRIu32 "\n", key_len); + sym_stateless_info->session_info.cipher_key = + sym_stateless_info->op_info.data + curr_size; + + s = iov_to_buf(iov, out_num, 0, + sym_stateless_info->session_info.cipher_key, key_len); + if (unlikely(s != key_len)) { + virtio_error(vdev, "virtio-crypto cipher key incorrect"); + goto err; + } + iov_discard_front(&iov, &out_num, key_len); + curr_size += key_len; + } + if (auth_key_len > 0) { + DPRINTF("auth_key_len=%" PRIu32 "\n", auth_key_len); + sym_stateless_info->session_info.auth_key = + sym_stateless_info->op_info.data + curr_size; + + s = iov_to_buf(iov, out_num, 0, + sym_stateless_info->session_info.auth_key, auth_key_len); + if (unlikely(s != auth_key_len)) { + virtio_error(vdev, "virtio-crypto auth key incorrect"); + goto err; + } + iov_discard_front(&iov, &out_num, auth_key_len); + curr_size += auth_key_len; + } + if (iv_len > 0) { + DPRINTF("iv_len=%" PRIu32 "\n", iv_len); + sym_stateless_info->op_info.iv = + sym_stateless_info->op_info.data + curr_size; + + s = iov_to_buf(iov, out_num, 0, + sym_stateless_info->op_info.iv, iv_len); + if (unlikely(s != iv_len)) { + virtio_error(vdev, "virtio-crypto iv incorrect"); + goto err; + } + iov_discard_front(&iov, &out_num, iv_len); + curr_size += iv_len; + } + + /* Handle additional authentication data if exists */ + if (aad_len > 0) { + DPRINTF("aad_len=%" PRIu32 "\n", aad_len); + sym_stateless_info->op_info.aad_data = + sym_stateless_info->op_info.data + curr_size; + + s = iov_to_buf(iov, out_num, 0, + sym_stateless_info->op_info.aad_data, aad_len); + if (unlikely(s != aad_len)) { + virtio_error(vdev, "virtio-crypto additional auth data incorrect"); + goto err; + } + iov_discard_front(&iov, &out_num, aad_len); + + curr_size += aad_len; + } + /* Handle the source data */ + if (src_len > 0) { + DPRINTF("src_len=%" PRIu32 "\n", src_len); + sym_stateless_info->op_info.src = + sym_stateless_info->op_info.data + curr_size; + + s = iov_to_buf(iov, out_num, 0, + sym_stateless_info->op_info.src, src_len); + if (unlikely(s != src_len)) { + virtio_error(vdev, "virtio-crypto source data incorrect"); + goto err; + } + iov_discard_front(&iov, &out_num, src_len); + + curr_size += src_len; + } + + /* Handle the destination data */ + sym_stateless_info->op_info.dst = + sym_stateless_info->op_info.data + curr_size; + curr_size += dst_len; + + DPRINTF("dst_len=%" PRIu32 "\n", dst_len); + + /* Handle the hash digest result */ + if (hash_result_len > 0) { + DPRINTF("hash_result_len=%" PRIu32 "\n", hash_result_len); + sym_stateless_info->op_info.digest_result = + sym_stateless_info->op_info.data + curr_size; + } + + *stateless_info = sym_stateless_info; + + return 0; + +err: + g_free(sym_stateless_info); + return -EFAULT; +} + +static int virtio_crypto_handle_request(VirtIOCryptoReq *request) { VirtIOCrypto *vcrypto = request->vcrypto; @@ -620,7 +876,10 @@ virtio_crypto_handle_request(VirtIOCryptoReq *request) uint32_t opcode; uint8_t status = VIRTIO_CRYPTO_ERR; uint64_t session_id; - CryptoDevBackendSymOpInfo *sym_op_info = NULL; + union { + CryptoDevBackendSymOpInfo *sym_op_info; + CryptoDevBackendSymStatelessInfo *stateless_info; + } info; Error *local_err = NULL; size_t s; @@ -663,27 +922,41 @@ virtio_crypto_handle_request(VirtIOCryptoReq *request) opcode = ldl_le_p(&hdr.opcode); session_id = ldq_le_p(&hdr.session_id); -#define data_req_payload_size(vdev, req) \ - (virtio_crypto_in_mux_mode((vdev)) ? sizeof((req)) : \ +#define data_req_payload_size(vdev, base) \ + (virtio_crypto_in_mux_mode((vdev)) ? (base) : \ VIRTIO_CRYPTO_DATA_REQ_PAYLOAD_SIZE_NONMUX) switch (opcode) { case VIRTIO_CRYPTO_CIPHER_ENCRYPT: case VIRTIO_CRYPTO_CIPHER_DECRYPT: { - struct virtio_crypto_sym_data_req req; - - iov_to_buf(out_iov, out_num, 0, &req, sizeof(req)); + bool is_stateless; + size_t base; + union { + struct virtio_crypto_sym_data_req req; + struct virtio_crypto_sym_data_req_stateless stateless_req; + } u_req; + + is_stateless = virtio_crypto_stateless_req(vdev, opcode, hdr.flag); + base = is_stateless ? sizeof(u_req.stateless_req) : sizeof(u_req.req); + iov_to_buf(out_iov, out_num, 0, &u_req, base); /* The unused part of the req will be ingored */ - s = data_req_payload_size(vdev, req); + s = data_req_payload_size(vdev, base); if (unlikely(s != iov_discard_front(&out_iov, &out_num, s))) { virtio_error(vdev, "virtio-crypto request additional " "parameters too short"); return -1; } - ret = virtio_crypto_handle_sym_req(vcrypto, &req, - &sym_op_info, - out_iov, out_num); + if (is_stateless) { + ret = virtio_crypto_handle_sym_stateless_req(vcrypto, + &u_req.stateless_req, + &info.stateless_info, + out_iov, out_num); + } else { + ret = virtio_crypto_handle_sym_req(vcrypto, &u_req.req, + &info.sym_op_info, + out_iov, out_num); + } /* Serious errors, need to reset virtio crypto device */ if (ret == -EFAULT) { return -1; @@ -691,11 +964,19 @@ virtio_crypto_handle_request(VirtIOCryptoReq *request) virtio_crypto_req_complete(request, VIRTIO_CRYPTO_NOTSUPP); virtio_crypto_free_request(request); } else { - sym_op_info->session_id = session_id; + if (is_stateless) { + info.stateless_info->op_info.op_code = opcode; + request->flags = CRYPTODEV_BACKEND_ALG_SYM_STATELESS; + request->u.sym_stateless_info = info.stateless_info; + } else { + info.sym_op_info->op_code = opcode; + session_id = ldq_le_p(&hdr.session_id); + info.sym_op_info->session_id = session_id; + /* Set request's parameter */ + request->flags = CRYPTODEV_BACKEND_ALG_SYM; + request->u.sym_op_info = info.sym_op_info; + } - /* Set request's parameter */ - request->flags = CRYPTODEV_BACKEND_ALG_SYM; - request->u.sym_op_info = sym_op_info; ret = cryptodev_backend_crypto_operation(vcrypto->cryptodev, request, queue_index, &local_err); if (ret < 0) { diff --git a/include/standard-headers/linux/virtio_crypto.h b/include/standard-headers/linux/virtio_crypto.h index 81357e5..285914d 100644 --- a/include/standard-headers/linux/virtio_crypto.h +++ b/include/standard-headers/linux/virtio_crypto.h @@ -260,6 +260,7 @@ struct virtio_crypto_op_header { uint32_t algo; /* session_id should be service-specific algorithms */ uint64_t session_id; +#define VIRTIO_CRYPTO_FLAG_SESSION_MODE 1 /* control flag to control the request */ uint32_t flag; uint32_t padding; @@ -381,6 +382,166 @@ struct virtio_crypto_aead_data_req { #define VIRTIO_CRYPTO_DATA_REQ_PAYLOAD_SIZE_NONMUX 48 +struct virtio_crypto_cipher_para_stateless { + struct { + /* See VIRTIO_CRYPTO_CIPHER* above */ + uint32_t algo; + /* length of key */ + uint32_t keylen; + + /* See VIRTIO_CRYPTO_OP_* above */ + uint32_t op; + } sess_para; + + /* + * Byte Length of valid IV/Counter + */ + uint32_t iv_len; + /* length of source data */ + uint32_t src_data_len; + /* length of dst data */ + uint32_t dst_data_len; +}; + +struct virtio_crypto_alg_chain_data_para_stateless { + struct { + /* See VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_* above */ + uint32_t alg_chain_order; + /* length of the additional authenticated data in bytes */ + uint32_t aad_len; + + struct { + /* See VIRTIO_CRYPTO_CIPHER* above */ + uint32_t algo; + /* length of key */ + uint32_t keylen; + /* See VIRTIO_CRYPTO_OP_* above */ + uint32_t op; + } cipher; + + struct { + /* See VIRTIO_CRYPTO_HASH_* or _MAC_* above */ + uint32_t algo; + /* length of authenticated key */ + uint32_t auth_key_len; + /* See VIRTIO_CRYPTO_SYM_HASH_MODE_* above */ + uint32_t hash_mode; + } hash; + } sess_para; + + uint32_t iv_len; + /* Length of source data */ + uint32_t src_data_len; + /* Length of destination data */ + uint32_t dst_data_len; + /* Starting point for cipher processing in source data */ + uint32_t cipher_start_src_offset; + /* Length of the source data that the cipher will be computed on */ + uint32_t len_to_cipher; + /* Starting point for hash processing in source data */ + uint32_t hash_start_src_offset; + /* Length of the source data that the hash will be computed on */ + uint32_t len_to_hash; + /* Length of the additional auth data */ + uint32_t aad_len; + /* Length of the hash result */ + uint32_t hash_result_len; + uint32_t reserved; +}; + +struct virtio_crypto_hash_para_stateless { + struct { + /* See VIRTIO_CRYPTO_HASH_* above */ + uint32_t algo; + } sess_para; + + /* length of source data */ + uint32_t src_data_len; + /* hash result length */ + uint32_t hash_result_len; + uint32_t reserved; +}; + +struct virtio_crypto_mac_para_stateless { + struct { + /* See VIRTIO_CRYPTO_MAC_* above */ + uint32_t algo; + /* length of authenticated key */ + uint32_t auth_key_len; + } sess_para; + + /* length of source data */ + uint32_t src_data_len; + /* hash result length */ + uint32_t hash_result_len; +}; + +struct virtio_crypto_aead_para_stateless { + struct { + /* See VIRTIO_CRYPTO_AEAD_* above */ + uint32_t algo; + /* length of key */ + uint32_t key_len; + /* encrypt or decrypt, See above VIRTIO_CRYPTO_OP_* */ + uint32_t op; + } sess_para; + + /* + * Byte Length of valid IV data pointed to by the below iv_addr + * parameter. + */ + uint32_t iv_len; + /* Authentication tag length */ + uint32_t tag_len; + /* length of the additional authenticated data (AAD) in bytes */ + uint32_t aad_len; + /* length of source data */ + uint32_t src_data_len; + /* length of dst data, it should be at least src_data_len + tag_len */ + uint32_t dst_data_len; +}; + +struct virtio_crypto_cipher_data_req_stateless { + /* Device-readable part */ + struct virtio_crypto_cipher_para_stateless para; + uint8_t padding[48]; +}; + +struct virtio_crypto_hash_data_req_stateless { + /* Device-readable part */ + struct virtio_crypto_hash_para_stateless para; + uint8_t padding[64]; +}; + +struct virtio_crypto_mac_data_req_stateless { + /* Device-readable part */ + struct virtio_crypto_mac_para_stateless para; + uint8_t padding[64]; +}; + +struct virtio_crypto_alg_chain_data_req_stateless { + /* Device-readable part */ + struct virtio_crypto_alg_chain_data_para_stateless para; +}; + +struct virtio_crypto_sym_data_req_stateless { + union { + struct virtio_crypto_cipher_data_req_stateless cipher; + struct virtio_crypto_alg_chain_data_req_stateless chain; + uint8_t padding[72]; + } u; + + /* See above VIRTIO_CRYPTO_SYM_OP_* */ + uint32_t op_type; + uint32_t padding; +}; + +struct virtio_crypto_aead_data_req_stateless { + /* Device-readable part */ + struct virtio_crypto_aead_para_stateless para; + uint8_t padding[48]; +}; + #define VIRTIO_CRYPTO_OK 0 #define VIRTIO_CRYPTO_ERR 1 #define VIRTIO_CRYPTO_BADMSG 2 diff --git a/include/sysemu/cryptodev.h b/include/sysemu/cryptodev.h index aa2fcd8..9f83082 100644 --- a/include/sysemu/cryptodev.h +++ b/include/sysemu/cryptodev.h @@ -103,6 +103,7 @@ typedef struct CryptoDevBackendSymSessionInfo { * * @session_id: session index which was previously * created by cryptodev_backend_sym_create_session() + * @op_code: operation code (refer to virtio_crypto.h) * @aad_len: byte length of additional authenticated data * @iv_len: byte length of initialization vector or counter * @src_len: byte length of source data @@ -129,6 +130,8 @@ typedef struct CryptoDevBackendSymSessionInfo { */ typedef struct CryptoDevBackendSymOpInfo { uint64_t session_id; + /* corresponding with virtio crypto spec */ + uint32_t op_code; uint32_t aad_len; uint32_t iv_len; uint32_t src_len;