From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/crypto/qce/skcipher.c | 529 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 529 insertions(+) create mode 100644 drivers/crypto/qce/skcipher.c (limited to 'drivers/crypto/qce/skcipher.c') diff --git a/drivers/crypto/qce/skcipher.c b/drivers/crypto/qce/skcipher.c new file mode 100644 index 000000000..5b493fdc1 --- /dev/null +++ b/drivers/crypto/qce/skcipher.c @@ -0,0 +1,529 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cipher.h" + +static unsigned int aes_sw_max_len = CONFIG_CRYPTO_DEV_QCE_SW_MAX_LEN; +module_param(aes_sw_max_len, uint, 0644); +MODULE_PARM_DESC(aes_sw_max_len, + "Only use hardware for AES requests larger than this " + "[0=always use hardware; anything <16 breaks AES-GCM; default=" + __stringify(CONFIG_CRYPTO_DEV_QCE_SW_MAX_LEN)"]"); + +static LIST_HEAD(skcipher_algs); + +static void qce_skcipher_done(void *data) +{ + struct crypto_async_request *async_req = data; + struct skcipher_request *req = skcipher_request_cast(async_req); + struct qce_cipher_reqctx *rctx = skcipher_request_ctx(req); + struct qce_alg_template *tmpl = to_cipher_tmpl(crypto_skcipher_reqtfm(req)); + struct qce_device *qce = tmpl->qce; + struct qce_result_dump *result_buf = qce->dma.result_buf; + enum dma_data_direction dir_src, dir_dst; + u32 status; + int error; + bool diff_dst; + + diff_dst = (req->src != req->dst) ? true : false; + dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL; + dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL; + + error = qce_dma_terminate_all(&qce->dma); + if (error) + dev_dbg(qce->dev, "skcipher dma termination error (%d)\n", + error); + + if (diff_dst) + dma_unmap_sg(qce->dev, rctx->src_sg, rctx->src_nents, dir_src); + dma_unmap_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst); + + sg_free_table(&rctx->dst_tbl); + + error = qce_check_status(qce, &status); + if (error < 0) + dev_dbg(qce->dev, "skcipher operation error (%x)\n", status); + + memcpy(rctx->iv, result_buf->encr_cntr_iv, rctx->ivsize); + qce->async_req_done(tmpl->qce, error); +} + +static int +qce_skcipher_async_req_handle(struct crypto_async_request *async_req) +{ + struct skcipher_request *req = skcipher_request_cast(async_req); + struct qce_cipher_reqctx *rctx = skcipher_request_ctx(req); + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct qce_alg_template *tmpl = to_cipher_tmpl(crypto_skcipher_reqtfm(req)); + struct qce_device *qce = tmpl->qce; + enum dma_data_direction dir_src, dir_dst; + struct scatterlist *sg; + bool diff_dst; + gfp_t gfp; + int dst_nents, src_nents, ret; + + rctx->iv = req->iv; + rctx->ivsize = crypto_skcipher_ivsize(skcipher); + rctx->cryptlen = req->cryptlen; + + diff_dst = (req->src != req->dst) ? true : false; + dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL; + dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL; + + rctx->src_nents = sg_nents_for_len(req->src, req->cryptlen); + if (diff_dst) + rctx->dst_nents = sg_nents_for_len(req->dst, req->cryptlen); + else + rctx->dst_nents = rctx->src_nents; + if (rctx->src_nents < 0) { + dev_err(qce->dev, "Invalid numbers of src SG.\n"); + return rctx->src_nents; + } + if (rctx->dst_nents < 0) { + dev_err(qce->dev, "Invalid numbers of dst SG.\n"); + return -rctx->dst_nents; + } + + rctx->dst_nents += 1; + + gfp = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + + ret = sg_alloc_table(&rctx->dst_tbl, rctx->dst_nents, gfp); + if (ret) + return ret; + + sg_init_one(&rctx->result_sg, qce->dma.result_buf, QCE_RESULT_BUF_SZ); + + sg = qce_sgtable_add(&rctx->dst_tbl, req->dst, req->cryptlen); + if (IS_ERR(sg)) { + ret = PTR_ERR(sg); + goto error_free; + } + + sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg, + QCE_RESULT_BUF_SZ); + if (IS_ERR(sg)) { + ret = PTR_ERR(sg); + goto error_free; + } + + sg_mark_end(sg); + rctx->dst_sg = rctx->dst_tbl.sgl; + + dst_nents = dma_map_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst); + if (!dst_nents) { + ret = -EIO; + goto error_free; + } + + if (diff_dst) { + src_nents = dma_map_sg(qce->dev, req->src, rctx->src_nents, dir_src); + if (!src_nents) { + ret = -EIO; + goto error_unmap_dst; + } + rctx->src_sg = req->src; + } else { + rctx->src_sg = rctx->dst_sg; + src_nents = dst_nents - 1; + } + + ret = qce_dma_prep_sgs(&qce->dma, rctx->src_sg, src_nents, + rctx->dst_sg, dst_nents, + qce_skcipher_done, async_req); + if (ret) + goto error_unmap_src; + + qce_dma_issue_pending(&qce->dma); + + ret = qce_start(async_req, tmpl->crypto_alg_type); + if (ret) + goto error_terminate; + + return 0; + +error_terminate: + qce_dma_terminate_all(&qce->dma); +error_unmap_src: + if (diff_dst) + dma_unmap_sg(qce->dev, req->src, rctx->src_nents, dir_src); +error_unmap_dst: + dma_unmap_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst); +error_free: + sg_free_table(&rctx->dst_tbl); + return ret; +} + +static int qce_skcipher_setkey(struct crypto_skcipher *ablk, const u8 *key, + unsigned int keylen) +{ + struct crypto_tfm *tfm = crypto_skcipher_tfm(ablk); + struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm); + unsigned long flags = to_cipher_tmpl(ablk)->alg_flags; + unsigned int __keylen; + int ret; + + if (!key || !keylen) + return -EINVAL; + + /* + * AES XTS key1 = key2 not supported by crypto engine. + * Revisit to request a fallback cipher in this case. + */ + if (IS_XTS(flags)) { + __keylen = keylen >> 1; + if (!memcmp(key, key + __keylen, __keylen)) + return -ENOKEY; + } else { + __keylen = keylen; + } + + switch (__keylen) { + case AES_KEYSIZE_128: + case AES_KEYSIZE_256: + memcpy(ctx->enc_key, key, keylen); + break; + case AES_KEYSIZE_192: + break; + default: + return -EINVAL; + } + + ret = crypto_skcipher_setkey(ctx->fallback, key, keylen); + if (!ret) + ctx->enc_keylen = keylen; + return ret; +} + +static int qce_des_setkey(struct crypto_skcipher *ablk, const u8 *key, + unsigned int keylen) +{ + struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(ablk); + int err; + + err = verify_skcipher_des_key(ablk, key); + if (err) + return err; + + ctx->enc_keylen = keylen; + memcpy(ctx->enc_key, key, keylen); + return 0; +} + +static int qce_des3_setkey(struct crypto_skcipher *ablk, const u8 *key, + unsigned int keylen) +{ + struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(ablk); + u32 _key[6]; + int err; + + err = verify_skcipher_des3_key(ablk, key); + if (err) + return err; + + /* + * The crypto engine does not support any two keys + * being the same for triple des algorithms. The + * verify_skcipher_des3_key does not check for all the + * below conditions. Return -ENOKEY in case any two keys + * are the same. Revisit to see if a fallback cipher + * is needed to handle this condition. + */ + memcpy(_key, key, DES3_EDE_KEY_SIZE); + if (!((_key[0] ^ _key[2]) | (_key[1] ^ _key[3])) || + !((_key[2] ^ _key[4]) | (_key[3] ^ _key[5])) || + !((_key[0] ^ _key[4]) | (_key[1] ^ _key[5]))) + return -ENOKEY; + + ctx->enc_keylen = keylen; + memcpy(ctx->enc_key, key, keylen); + return 0; +} + +static int qce_skcipher_crypt(struct skcipher_request *req, int encrypt) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct qce_cipher_reqctx *rctx = skcipher_request_ctx(req); + struct qce_alg_template *tmpl = to_cipher_tmpl(tfm); + unsigned int blocksize = crypto_skcipher_blocksize(tfm); + int keylen; + int ret; + + rctx->flags = tmpl->alg_flags; + rctx->flags |= encrypt ? QCE_ENCRYPT : QCE_DECRYPT; + keylen = IS_XTS(rctx->flags) ? ctx->enc_keylen >> 1 : ctx->enc_keylen; + + /* CE does not handle 0 length messages */ + if (!req->cryptlen) + return 0; + + /* + * ECB and CBC algorithms require message lengths to be + * multiples of block size. + */ + if (IS_ECB(rctx->flags) || IS_CBC(rctx->flags)) + if (!IS_ALIGNED(req->cryptlen, blocksize)) + return -EINVAL; + + /* + * Conditions for requesting a fallback cipher + * AES-192 (not supported by crypto engine (CE)) + * AES-XTS request with len <= 512 byte (not recommended to use CE) + * AES-XTS request with len > QCE_SECTOR_SIZE and + * is not a multiple of it.(Revisit this condition to check if it is + * needed in all versions of CE) + */ + if (IS_AES(rctx->flags) && + ((keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_256) || + (IS_XTS(rctx->flags) && ((req->cryptlen <= aes_sw_max_len) || + (req->cryptlen > QCE_SECTOR_SIZE && + req->cryptlen % QCE_SECTOR_SIZE))))) { + skcipher_request_set_tfm(&rctx->fallback_req, ctx->fallback); + skcipher_request_set_callback(&rctx->fallback_req, + req->base.flags, + req->base.complete, + req->base.data); + skcipher_request_set_crypt(&rctx->fallback_req, req->src, + req->dst, req->cryptlen, req->iv); + ret = encrypt ? crypto_skcipher_encrypt(&rctx->fallback_req) : + crypto_skcipher_decrypt(&rctx->fallback_req); + return ret; + } + + return tmpl->qce->async_req_enqueue(tmpl->qce, &req->base); +} + +static int qce_skcipher_encrypt(struct skcipher_request *req) +{ + return qce_skcipher_crypt(req, 1); +} + +static int qce_skcipher_decrypt(struct skcipher_request *req) +{ + return qce_skcipher_crypt(req, 0); +} + +static int qce_skcipher_init(struct crypto_skcipher *tfm) +{ + /* take the size without the fallback skcipher_request at the end */ + crypto_skcipher_set_reqsize(tfm, offsetof(struct qce_cipher_reqctx, + fallback_req)); + return 0; +} + +static int qce_skcipher_init_fallback(struct crypto_skcipher *tfm) +{ + struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + + ctx->fallback = crypto_alloc_skcipher(crypto_tfm_alg_name(&tfm->base), + 0, CRYPTO_ALG_NEED_FALLBACK); + if (IS_ERR(ctx->fallback)) + return PTR_ERR(ctx->fallback); + + crypto_skcipher_set_reqsize(tfm, sizeof(struct qce_cipher_reqctx) + + crypto_skcipher_reqsize(ctx->fallback)); + return 0; +} + +static void qce_skcipher_exit(struct crypto_skcipher *tfm) +{ + struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + + crypto_free_skcipher(ctx->fallback); +} + +struct qce_skcipher_def { + unsigned long flags; + const char *name; + const char *drv_name; + unsigned int blocksize; + unsigned int chunksize; + unsigned int ivsize; + unsigned int min_keysize; + unsigned int max_keysize; +}; + +static const struct qce_skcipher_def skcipher_def[] = { + { + .flags = QCE_ALG_AES | QCE_MODE_ECB, + .name = "ecb(aes)", + .drv_name = "ecb-aes-qce", + .blocksize = AES_BLOCK_SIZE, + .ivsize = 0, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + }, + { + .flags = QCE_ALG_AES | QCE_MODE_CBC, + .name = "cbc(aes)", + .drv_name = "cbc-aes-qce", + .blocksize = AES_BLOCK_SIZE, + .ivsize = AES_BLOCK_SIZE, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + }, + { + .flags = QCE_ALG_AES | QCE_MODE_CTR, + .name = "ctr(aes)", + .drv_name = "ctr-aes-qce", + .blocksize = 1, + .chunksize = AES_BLOCK_SIZE, + .ivsize = AES_BLOCK_SIZE, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + }, + { + .flags = QCE_ALG_AES | QCE_MODE_XTS, + .name = "xts(aes)", + .drv_name = "xts-aes-qce", + .blocksize = AES_BLOCK_SIZE, + .ivsize = AES_BLOCK_SIZE, + .min_keysize = AES_MIN_KEY_SIZE * 2, + .max_keysize = AES_MAX_KEY_SIZE * 2, + }, + { + .flags = QCE_ALG_DES | QCE_MODE_ECB, + .name = "ecb(des)", + .drv_name = "ecb-des-qce", + .blocksize = DES_BLOCK_SIZE, + .ivsize = 0, + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + }, + { + .flags = QCE_ALG_DES | QCE_MODE_CBC, + .name = "cbc(des)", + .drv_name = "cbc-des-qce", + .blocksize = DES_BLOCK_SIZE, + .ivsize = DES_BLOCK_SIZE, + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + }, + { + .flags = QCE_ALG_3DES | QCE_MODE_ECB, + .name = "ecb(des3_ede)", + .drv_name = "ecb-3des-qce", + .blocksize = DES3_EDE_BLOCK_SIZE, + .ivsize = 0, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + }, + { + .flags = QCE_ALG_3DES | QCE_MODE_CBC, + .name = "cbc(des3_ede)", + .drv_name = "cbc-3des-qce", + .blocksize = DES3_EDE_BLOCK_SIZE, + .ivsize = DES3_EDE_BLOCK_SIZE, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + }, +}; + +static int qce_skcipher_register_one(const struct qce_skcipher_def *def, + struct qce_device *qce) +{ + struct qce_alg_template *tmpl; + struct skcipher_alg *alg; + int ret; + + tmpl = kzalloc(sizeof(*tmpl), GFP_KERNEL); + if (!tmpl) + return -ENOMEM; + + alg = &tmpl->alg.skcipher; + + snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); + snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", + def->drv_name); + + alg->base.cra_blocksize = def->blocksize; + alg->chunksize = def->chunksize; + alg->ivsize = def->ivsize; + alg->min_keysize = def->min_keysize; + alg->max_keysize = def->max_keysize; + alg->setkey = IS_3DES(def->flags) ? qce_des3_setkey : + IS_DES(def->flags) ? qce_des_setkey : + qce_skcipher_setkey; + alg->encrypt = qce_skcipher_encrypt; + alg->decrypt = qce_skcipher_decrypt; + + alg->base.cra_priority = 300; + alg->base.cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_ALLOCATES_MEMORY | + CRYPTO_ALG_KERN_DRIVER_ONLY; + alg->base.cra_ctxsize = sizeof(struct qce_cipher_ctx); + alg->base.cra_alignmask = 0; + alg->base.cra_module = THIS_MODULE; + + if (IS_AES(def->flags)) { + alg->base.cra_flags |= CRYPTO_ALG_NEED_FALLBACK; + alg->init = qce_skcipher_init_fallback; + alg->exit = qce_skcipher_exit; + } else { + alg->init = qce_skcipher_init; + } + + INIT_LIST_HEAD(&tmpl->entry); + tmpl->crypto_alg_type = CRYPTO_ALG_TYPE_SKCIPHER; + tmpl->alg_flags = def->flags; + tmpl->qce = qce; + + ret = crypto_register_skcipher(alg); + if (ret) { + dev_err(qce->dev, "%s registration failed\n", alg->base.cra_name); + kfree(tmpl); + return ret; + } + + list_add_tail(&tmpl->entry, &skcipher_algs); + dev_dbg(qce->dev, "%s is registered\n", alg->base.cra_name); + return 0; +} + +static void qce_skcipher_unregister(struct qce_device *qce) +{ + struct qce_alg_template *tmpl, *n; + + list_for_each_entry_safe(tmpl, n, &skcipher_algs, entry) { + crypto_unregister_skcipher(&tmpl->alg.skcipher); + list_del(&tmpl->entry); + kfree(tmpl); + } +} + +static int qce_skcipher_register(struct qce_device *qce) +{ + int ret, i; + + for (i = 0; i < ARRAY_SIZE(skcipher_def); i++) { + ret = qce_skcipher_register_one(&skcipher_def[i], qce); + if (ret) + goto err; + } + + return 0; +err: + qce_skcipher_unregister(qce); + return ret; +} + +const struct qce_algo_ops skcipher_ops = { + .type = CRYPTO_ALG_TYPE_SKCIPHER, + .register_algs = qce_skcipher_register, + .unregister_algs = qce_skcipher_unregister, + .async_req_handle = qce_skcipher_async_req_handle, +}; -- cgit v1.2.3