163ee04c8SGilad Ben-Yossef // SPDX-License-Identifier: GPL-2.0
203963caeSGilad Ben-Yossef /* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */
363ee04c8SGilad Ben-Yossef
463ee04c8SGilad Ben-Yossef #include <linux/kernel.h>
563ee04c8SGilad Ben-Yossef #include <linux/module.h>
663ee04c8SGilad Ben-Yossef #include <crypto/algapi.h>
763ee04c8SGilad Ben-Yossef #include <crypto/internal/skcipher.h>
800cd6b23SArd Biesheuvel #include <crypto/internal/des.h>
963ee04c8SGilad Ben-Yossef #include <crypto/xts.h>
109b8d51f8SGilad Ben-Yossef #include <crypto/sm4.h>
1163ee04c8SGilad Ben-Yossef #include <crypto/scatterwalk.h>
1263ee04c8SGilad Ben-Yossef
1363ee04c8SGilad Ben-Yossef #include "cc_driver.h"
1463ee04c8SGilad Ben-Yossef #include "cc_lli_defs.h"
1563ee04c8SGilad Ben-Yossef #include "cc_buffer_mgr.h"
1663ee04c8SGilad Ben-Yossef #include "cc_cipher.h"
1763ee04c8SGilad Ben-Yossef #include "cc_request_mgr.h"
1863ee04c8SGilad Ben-Yossef
195620eb6cSArd Biesheuvel #define MAX_SKCIPHER_SEQ_LEN 6
2063ee04c8SGilad Ben-Yossef
2163ee04c8SGilad Ben-Yossef #define template_skcipher template_u.skcipher
2263ee04c8SGilad Ben-Yossef
2363ee04c8SGilad Ben-Yossef struct cc_user_key_info {
2463ee04c8SGilad Ben-Yossef u8 *key;
2563ee04c8SGilad Ben-Yossef dma_addr_t key_dma_addr;
2663ee04c8SGilad Ben-Yossef };
2763ee04c8SGilad Ben-Yossef
2863ee04c8SGilad Ben-Yossef struct cc_hw_key_info {
2963ee04c8SGilad Ben-Yossef enum cc_hw_crypto_key key1_slot;
3063ee04c8SGilad Ben-Yossef enum cc_hw_crypto_key key2_slot;
3163ee04c8SGilad Ben-Yossef };
3263ee04c8SGilad Ben-Yossef
3352f42c65SGilad Ben-Yossef struct cc_cpp_key_info {
3452f42c65SGilad Ben-Yossef u8 slot;
3552f42c65SGilad Ben-Yossef enum cc_cpp_alg alg;
3652f42c65SGilad Ben-Yossef };
3752f42c65SGilad Ben-Yossef
3852f42c65SGilad Ben-Yossef enum cc_key_type {
3952f42c65SGilad Ben-Yossef CC_UNPROTECTED_KEY, /* User key */
4052f42c65SGilad Ben-Yossef CC_HW_PROTECTED_KEY, /* HW (FDE) key */
4152f42c65SGilad Ben-Yossef CC_POLICY_PROTECTED_KEY, /* CPP key */
4252f42c65SGilad Ben-Yossef CC_INVALID_PROTECTED_KEY /* Invalid key */
4352f42c65SGilad Ben-Yossef };
4452f42c65SGilad Ben-Yossef
4563ee04c8SGilad Ben-Yossef struct cc_cipher_ctx {
4663ee04c8SGilad Ben-Yossef struct cc_drvdata *drvdata;
4763ee04c8SGilad Ben-Yossef int keylen;
4863ee04c8SGilad Ben-Yossef int cipher_mode;
4963ee04c8SGilad Ben-Yossef int flow_mode;
5063ee04c8SGilad Ben-Yossef unsigned int flags;
5152f42c65SGilad Ben-Yossef enum cc_key_type key_type;
5263ee04c8SGilad Ben-Yossef struct cc_user_key_info user;
5352f42c65SGilad Ben-Yossef union {
5463ee04c8SGilad Ben-Yossef struct cc_hw_key_info hw;
5552f42c65SGilad Ben-Yossef struct cc_cpp_key_info cpp;
5652f42c65SGilad Ben-Yossef };
5763ee04c8SGilad Ben-Yossef struct crypto_shash *shash_tfm;
58520f325aSGilad Ben-Yossef struct crypto_skcipher *fallback_tfm;
59520f325aSGilad Ben-Yossef bool fallback_on;
6063ee04c8SGilad Ben-Yossef };
6163ee04c8SGilad Ben-Yossef
6263ee04c8SGilad Ben-Yossef static void cc_cipher_complete(struct device *dev, void *cc_req, int err);
6363ee04c8SGilad Ben-Yossef
cc_key_type(struct crypto_tfm * tfm)6452f42c65SGilad Ben-Yossef static inline enum cc_key_type cc_key_type(struct crypto_tfm *tfm)
65a794d8d8SGilad Ben-Yossef {
66a794d8d8SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
67a794d8d8SGilad Ben-Yossef
6852f42c65SGilad Ben-Yossef return ctx_p->key_type;
69a794d8d8SGilad Ben-Yossef }
70a794d8d8SGilad Ben-Yossef
validate_keys_sizes(struct cc_cipher_ctx * ctx_p,u32 size)7163ee04c8SGilad Ben-Yossef static int validate_keys_sizes(struct cc_cipher_ctx *ctx_p, u32 size)
7263ee04c8SGilad Ben-Yossef {
7363ee04c8SGilad Ben-Yossef switch (ctx_p->flow_mode) {
7463ee04c8SGilad Ben-Yossef case S_DIN_to_AES:
7563ee04c8SGilad Ben-Yossef switch (size) {
7663ee04c8SGilad Ben-Yossef case CC_AES_128_BIT_KEY_SIZE:
7763ee04c8SGilad Ben-Yossef case CC_AES_192_BIT_KEY_SIZE:
781d8b41ffSGilad Ben-Yossef if (ctx_p->cipher_mode != DRV_CIPHER_XTS)
7963ee04c8SGilad Ben-Yossef return 0;
8063ee04c8SGilad Ben-Yossef break;
8163ee04c8SGilad Ben-Yossef case CC_AES_256_BIT_KEY_SIZE:
8263ee04c8SGilad Ben-Yossef return 0;
8363ee04c8SGilad Ben-Yossef case (CC_AES_192_BIT_KEY_SIZE * 2):
8463ee04c8SGilad Ben-Yossef case (CC_AES_256_BIT_KEY_SIZE * 2):
8563ee04c8SGilad Ben-Yossef if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
861d8b41ffSGilad Ben-Yossef ctx_p->cipher_mode == DRV_CIPHER_ESSIV)
8763ee04c8SGilad Ben-Yossef return 0;
8863ee04c8SGilad Ben-Yossef break;
8963ee04c8SGilad Ben-Yossef default:
9063ee04c8SGilad Ben-Yossef break;
9163ee04c8SGilad Ben-Yossef }
92b5be8531SGustavo A. R. Silva break;
9363ee04c8SGilad Ben-Yossef case S_DIN_to_DES:
9463ee04c8SGilad Ben-Yossef if (size == DES3_EDE_KEY_SIZE || size == DES_KEY_SIZE)
9563ee04c8SGilad Ben-Yossef return 0;
9663ee04c8SGilad Ben-Yossef break;
979b8d51f8SGilad Ben-Yossef case S_DIN_to_SM4:
989b8d51f8SGilad Ben-Yossef if (size == SM4_KEY_SIZE)
999b8d51f8SGilad Ben-Yossef return 0;
100abc6146aSGustavo A. R. Silva break;
10163ee04c8SGilad Ben-Yossef default:
10263ee04c8SGilad Ben-Yossef break;
10363ee04c8SGilad Ben-Yossef }
10463ee04c8SGilad Ben-Yossef return -EINVAL;
10563ee04c8SGilad Ben-Yossef }
10663ee04c8SGilad Ben-Yossef
validate_data_size(struct cc_cipher_ctx * ctx_p,unsigned int size)10763ee04c8SGilad Ben-Yossef static int validate_data_size(struct cc_cipher_ctx *ctx_p,
10863ee04c8SGilad Ben-Yossef unsigned int size)
10963ee04c8SGilad Ben-Yossef {
11063ee04c8SGilad Ben-Yossef switch (ctx_p->flow_mode) {
11163ee04c8SGilad Ben-Yossef case S_DIN_to_AES:
11263ee04c8SGilad Ben-Yossef switch (ctx_p->cipher_mode) {
11363ee04c8SGilad Ben-Yossef case DRV_CIPHER_XTS:
11463ee04c8SGilad Ben-Yossef case DRV_CIPHER_CBC_CTS:
11563ee04c8SGilad Ben-Yossef if (size >= AES_BLOCK_SIZE)
11663ee04c8SGilad Ben-Yossef return 0;
11763ee04c8SGilad Ben-Yossef break;
11863ee04c8SGilad Ben-Yossef case DRV_CIPHER_OFB:
11963ee04c8SGilad Ben-Yossef case DRV_CIPHER_CTR:
12063ee04c8SGilad Ben-Yossef return 0;
12163ee04c8SGilad Ben-Yossef case DRV_CIPHER_ECB:
12263ee04c8SGilad Ben-Yossef case DRV_CIPHER_CBC:
12363ee04c8SGilad Ben-Yossef case DRV_CIPHER_ESSIV:
12463ee04c8SGilad Ben-Yossef if (IS_ALIGNED(size, AES_BLOCK_SIZE))
12563ee04c8SGilad Ben-Yossef return 0;
12663ee04c8SGilad Ben-Yossef break;
12763ee04c8SGilad Ben-Yossef default:
12863ee04c8SGilad Ben-Yossef break;
12963ee04c8SGilad Ben-Yossef }
13063ee04c8SGilad Ben-Yossef break;
13163ee04c8SGilad Ben-Yossef case S_DIN_to_DES:
13263ee04c8SGilad Ben-Yossef if (IS_ALIGNED(size, DES_BLOCK_SIZE))
13363ee04c8SGilad Ben-Yossef return 0;
13463ee04c8SGilad Ben-Yossef break;
1359b8d51f8SGilad Ben-Yossef case S_DIN_to_SM4:
1369b8d51f8SGilad Ben-Yossef switch (ctx_p->cipher_mode) {
1379b8d51f8SGilad Ben-Yossef case DRV_CIPHER_CTR:
1389b8d51f8SGilad Ben-Yossef return 0;
1399b8d51f8SGilad Ben-Yossef case DRV_CIPHER_ECB:
1409b8d51f8SGilad Ben-Yossef case DRV_CIPHER_CBC:
1419b8d51f8SGilad Ben-Yossef if (IS_ALIGNED(size, SM4_BLOCK_SIZE))
1429b8d51f8SGilad Ben-Yossef return 0;
143abc6146aSGustavo A. R. Silva break;
1449b8d51f8SGilad Ben-Yossef default:
1459b8d51f8SGilad Ben-Yossef break;
1469b8d51f8SGilad Ben-Yossef }
147abc6146aSGustavo A. R. Silva break;
14863ee04c8SGilad Ben-Yossef default:
14963ee04c8SGilad Ben-Yossef break;
15063ee04c8SGilad Ben-Yossef }
15163ee04c8SGilad Ben-Yossef return -EINVAL;
15263ee04c8SGilad Ben-Yossef }
15363ee04c8SGilad Ben-Yossef
cc_cipher_init(struct crypto_tfm * tfm)15463ee04c8SGilad Ben-Yossef static int cc_cipher_init(struct crypto_tfm *tfm)
15563ee04c8SGilad Ben-Yossef {
15663ee04c8SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
15763ee04c8SGilad Ben-Yossef struct cc_crypto_alg *cc_alg =
15863ee04c8SGilad Ben-Yossef container_of(tfm->__crt_alg, struct cc_crypto_alg,
15963ee04c8SGilad Ben-Yossef skcipher_alg.base);
16063ee04c8SGilad Ben-Yossef struct device *dev = drvdata_to_dev(cc_alg->drvdata);
16163ee04c8SGilad Ben-Yossef unsigned int max_key_buf_size = cc_alg->skcipher_alg.max_keysize;
162520f325aSGilad Ben-Yossef unsigned int fallback_req_size = 0;
16363ee04c8SGilad Ben-Yossef
16463ee04c8SGilad Ben-Yossef dev_dbg(dev, "Initializing context @%p for %s\n", ctx_p,
16563ee04c8SGilad Ben-Yossef crypto_tfm_alg_name(tfm));
16663ee04c8SGilad Ben-Yossef
16763ee04c8SGilad Ben-Yossef ctx_p->cipher_mode = cc_alg->cipher_mode;
16863ee04c8SGilad Ben-Yossef ctx_p->flow_mode = cc_alg->flow_mode;
16963ee04c8SGilad Ben-Yossef ctx_p->drvdata = cc_alg->drvdata;
17063ee04c8SGilad Ben-Yossef
1719bc6165dSGilad Ben-Yossef if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
172520f325aSGilad Ben-Yossef const char *name = crypto_tfm_alg_name(tfm);
173520f325aSGilad Ben-Yossef
1749bc6165dSGilad Ben-Yossef /* Alloc hash tfm for essiv */
175520f325aSGilad Ben-Yossef ctx_p->shash_tfm = crypto_alloc_shash("sha256", 0, 0);
1769bc6165dSGilad Ben-Yossef if (IS_ERR(ctx_p->shash_tfm)) {
1779bc6165dSGilad Ben-Yossef dev_err(dev, "Error allocating hash tfm for ESSIV.\n");
1789bc6165dSGilad Ben-Yossef return PTR_ERR(ctx_p->shash_tfm);
1799bc6165dSGilad Ben-Yossef }
180520f325aSGilad Ben-Yossef max_key_buf_size <<= 1;
181520f325aSGilad Ben-Yossef
182520f325aSGilad Ben-Yossef /* Alloc fallabck tfm or essiv when key size != 256 bit */
183520f325aSGilad Ben-Yossef ctx_p->fallback_tfm =
184520f325aSGilad Ben-Yossef crypto_alloc_skcipher(name, 0, CRYPTO_ALG_NEED_FALLBACK | CRYPTO_ALG_ASYNC);
185520f325aSGilad Ben-Yossef
186520f325aSGilad Ben-Yossef if (IS_ERR(ctx_p->fallback_tfm)) {
187520f325aSGilad Ben-Yossef /* Note we're still allowing registration with no fallback since it's
188520f325aSGilad Ben-Yossef * better to have most modes supported than none at all.
189520f325aSGilad Ben-Yossef */
190520f325aSGilad Ben-Yossef dev_warn(dev, "Error allocating fallback algo %s. Some modes may be available.\n",
191520f325aSGilad Ben-Yossef name);
192520f325aSGilad Ben-Yossef ctx_p->fallback_tfm = NULL;
193520f325aSGilad Ben-Yossef } else {
194520f325aSGilad Ben-Yossef fallback_req_size = crypto_skcipher_reqsize(ctx_p->fallback_tfm);
195520f325aSGilad Ben-Yossef }
1969bc6165dSGilad Ben-Yossef }
1979bc6165dSGilad Ben-Yossef
198520f325aSGilad Ben-Yossef crypto_skcipher_set_reqsize(__crypto_skcipher_cast(tfm),
199520f325aSGilad Ben-Yossef sizeof(struct cipher_req_ctx) + fallback_req_size);
200520f325aSGilad Ben-Yossef
20163ee04c8SGilad Ben-Yossef /* Allocate key buffer, cache line aligned */
202520f325aSGilad Ben-Yossef ctx_p->user.key = kzalloc(max_key_buf_size, GFP_KERNEL);
20363ee04c8SGilad Ben-Yossef if (!ctx_p->user.key)
204520f325aSGilad Ben-Yossef goto free_fallback;
20563ee04c8SGilad Ben-Yossef
20663ee04c8SGilad Ben-Yossef dev_dbg(dev, "Allocated key buffer in context. key=@%p\n",
20763ee04c8SGilad Ben-Yossef ctx_p->user.key);
20863ee04c8SGilad Ben-Yossef
20963ee04c8SGilad Ben-Yossef /* Map key buffer */
210f4274eecSGeert Uytterhoeven ctx_p->user.key_dma_addr = dma_map_single(dev, ctx_p->user.key,
21163ee04c8SGilad Ben-Yossef max_key_buf_size,
21263ee04c8SGilad Ben-Yossef DMA_TO_DEVICE);
21363ee04c8SGilad Ben-Yossef if (dma_mapping_error(dev, ctx_p->user.key_dma_addr)) {
21463ee04c8SGilad Ben-Yossef dev_err(dev, "Mapping Key %u B at va=%pK for DMA failed\n",
21563ee04c8SGilad Ben-Yossef max_key_buf_size, ctx_p->user.key);
2169bc6165dSGilad Ben-Yossef goto free_key;
21763ee04c8SGilad Ben-Yossef }
21863ee04c8SGilad Ben-Yossef dev_dbg(dev, "Mapped key %u B at va=%pK to dma=%pad\n",
21963ee04c8SGilad Ben-Yossef max_key_buf_size, ctx_p->user.key, &ctx_p->user.key_dma_addr);
22063ee04c8SGilad Ben-Yossef
2219bc6165dSGilad Ben-Yossef return 0;
22263ee04c8SGilad Ben-Yossef
2239bc6165dSGilad Ben-Yossef free_key:
2249bc6165dSGilad Ben-Yossef kfree(ctx_p->user.key);
225520f325aSGilad Ben-Yossef free_fallback:
226520f325aSGilad Ben-Yossef crypto_free_skcipher(ctx_p->fallback_tfm);
2279bc6165dSGilad Ben-Yossef crypto_free_shash(ctx_p->shash_tfm);
2289bc6165dSGilad Ben-Yossef
2299bc6165dSGilad Ben-Yossef return -ENOMEM;
23063ee04c8SGilad Ben-Yossef }
23163ee04c8SGilad Ben-Yossef
cc_cipher_exit(struct crypto_tfm * tfm)23263ee04c8SGilad Ben-Yossef static void cc_cipher_exit(struct crypto_tfm *tfm)
23363ee04c8SGilad Ben-Yossef {
23463ee04c8SGilad Ben-Yossef struct crypto_alg *alg = tfm->__crt_alg;
23563ee04c8SGilad Ben-Yossef struct cc_crypto_alg *cc_alg =
23663ee04c8SGilad Ben-Yossef container_of(alg, struct cc_crypto_alg,
23763ee04c8SGilad Ben-Yossef skcipher_alg.base);
23863ee04c8SGilad Ben-Yossef unsigned int max_key_buf_size = cc_alg->skcipher_alg.max_keysize;
23963ee04c8SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
24063ee04c8SGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
24163ee04c8SGilad Ben-Yossef
24263ee04c8SGilad Ben-Yossef dev_dbg(dev, "Clearing context @%p for %s\n",
24363ee04c8SGilad Ben-Yossef crypto_tfm_ctx(tfm), crypto_tfm_alg_name(tfm));
24463ee04c8SGilad Ben-Yossef
24563ee04c8SGilad Ben-Yossef if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
24663ee04c8SGilad Ben-Yossef /* Free hash tfm for essiv */
24763ee04c8SGilad Ben-Yossef crypto_free_shash(ctx_p->shash_tfm);
24863ee04c8SGilad Ben-Yossef ctx_p->shash_tfm = NULL;
249520f325aSGilad Ben-Yossef crypto_free_skcipher(ctx_p->fallback_tfm);
250520f325aSGilad Ben-Yossef ctx_p->fallback_tfm = NULL;
25163ee04c8SGilad Ben-Yossef }
25263ee04c8SGilad Ben-Yossef
25363ee04c8SGilad Ben-Yossef /* Unmap key buffer */
25463ee04c8SGilad Ben-Yossef dma_unmap_single(dev, ctx_p->user.key_dma_addr, max_key_buf_size,
25563ee04c8SGilad Ben-Yossef DMA_TO_DEVICE);
25663ee04c8SGilad Ben-Yossef dev_dbg(dev, "Unmapped key buffer key_dma_addr=%pad\n",
25763ee04c8SGilad Ben-Yossef &ctx_p->user.key_dma_addr);
25863ee04c8SGilad Ben-Yossef
25963ee04c8SGilad Ben-Yossef /* Free key buffer in context */
26063ee04c8SGilad Ben-Yossef dev_dbg(dev, "Free key buffer in context. key=@%p\n", ctx_p->user.key);
2613d950c34SJianglei Nie kfree_sensitive(ctx_p->user.key);
26263ee04c8SGilad Ben-Yossef }
26363ee04c8SGilad Ben-Yossef
26463ee04c8SGilad Ben-Yossef struct tdes_keys {
26563ee04c8SGilad Ben-Yossef u8 key1[DES_KEY_SIZE];
26663ee04c8SGilad Ben-Yossef u8 key2[DES_KEY_SIZE];
26763ee04c8SGilad Ben-Yossef u8 key3[DES_KEY_SIZE];
26863ee04c8SGilad Ben-Yossef };
26963ee04c8SGilad Ben-Yossef
cc_slot_to_hw_key(u8 slot_num)27052f42c65SGilad Ben-Yossef static enum cc_hw_crypto_key cc_slot_to_hw_key(u8 slot_num)
27163ee04c8SGilad Ben-Yossef {
27263ee04c8SGilad Ben-Yossef switch (slot_num) {
27363ee04c8SGilad Ben-Yossef case 0:
27463ee04c8SGilad Ben-Yossef return KFDE0_KEY;
27563ee04c8SGilad Ben-Yossef case 1:
27663ee04c8SGilad Ben-Yossef return KFDE1_KEY;
27763ee04c8SGilad Ben-Yossef case 2:
27863ee04c8SGilad Ben-Yossef return KFDE2_KEY;
27963ee04c8SGilad Ben-Yossef case 3:
28063ee04c8SGilad Ben-Yossef return KFDE3_KEY;
28163ee04c8SGilad Ben-Yossef }
28263ee04c8SGilad Ben-Yossef return END_OF_KEYS;
28363ee04c8SGilad Ben-Yossef }
28463ee04c8SGilad Ben-Yossef
cc_slot_to_cpp_key(u8 slot_num)28552f42c65SGilad Ben-Yossef static u8 cc_slot_to_cpp_key(u8 slot_num)
28652f42c65SGilad Ben-Yossef {
28752f42c65SGilad Ben-Yossef return (slot_num - CC_FIRST_CPP_KEY_SLOT);
28852f42c65SGilad Ben-Yossef }
28952f42c65SGilad Ben-Yossef
cc_slot_to_key_type(u8 slot_num)29052f42c65SGilad Ben-Yossef static inline enum cc_key_type cc_slot_to_key_type(u8 slot_num)
29152f42c65SGilad Ben-Yossef {
29252f42c65SGilad Ben-Yossef if (slot_num >= CC_FIRST_HW_KEY_SLOT && slot_num <= CC_LAST_HW_KEY_SLOT)
29352f42c65SGilad Ben-Yossef return CC_HW_PROTECTED_KEY;
29452f42c65SGilad Ben-Yossef else if (slot_num >= CC_FIRST_CPP_KEY_SLOT &&
29552f42c65SGilad Ben-Yossef slot_num <= CC_LAST_CPP_KEY_SLOT)
29652f42c65SGilad Ben-Yossef return CC_POLICY_PROTECTED_KEY;
29752f42c65SGilad Ben-Yossef else
29852f42c65SGilad Ben-Yossef return CC_INVALID_PROTECTED_KEY;
29952f42c65SGilad Ben-Yossef }
30052f42c65SGilad Ben-Yossef
cc_cipher_sethkey(struct crypto_skcipher * sktfm,const u8 * key,unsigned int keylen)301a794d8d8SGilad Ben-Yossef static int cc_cipher_sethkey(struct crypto_skcipher *sktfm, const u8 *key,
302a794d8d8SGilad Ben-Yossef unsigned int keylen)
303a794d8d8SGilad Ben-Yossef {
304a794d8d8SGilad Ben-Yossef struct crypto_tfm *tfm = crypto_skcipher_tfm(sktfm);
305a794d8d8SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
306a794d8d8SGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
307a794d8d8SGilad Ben-Yossef struct cc_hkey_info hki;
308a794d8d8SGilad Ben-Yossef
309a794d8d8SGilad Ben-Yossef dev_dbg(dev, "Setting HW key in context @%p for %s. keylen=%u\n",
310a794d8d8SGilad Ben-Yossef ctx_p, crypto_tfm_alg_name(tfm), keylen);
311f4274eecSGeert Uytterhoeven dump_byte_array("key", key, keylen);
312a794d8d8SGilad Ben-Yossef
313a794d8d8SGilad Ben-Yossef /* STAT_PHASE_0: Init and sanity checks */
314a794d8d8SGilad Ben-Yossef
31552f42c65SGilad Ben-Yossef /* This check the size of the protected key token */
316a794d8d8SGilad Ben-Yossef if (keylen != sizeof(hki)) {
31752f42c65SGilad Ben-Yossef dev_err(dev, "Unsupported protected key size %d.\n", keylen);
318a794d8d8SGilad Ben-Yossef return -EINVAL;
319a794d8d8SGilad Ben-Yossef }
320a794d8d8SGilad Ben-Yossef
321a794d8d8SGilad Ben-Yossef memcpy(&hki, key, keylen);
322a794d8d8SGilad Ben-Yossef
323a794d8d8SGilad Ben-Yossef /* The real key len for crypto op is the size of the HW key
324a794d8d8SGilad Ben-Yossef * referenced by the HW key slot, not the hardware key token
325a794d8d8SGilad Ben-Yossef */
326a794d8d8SGilad Ben-Yossef keylen = hki.keylen;
327a794d8d8SGilad Ben-Yossef
328a794d8d8SGilad Ben-Yossef if (validate_keys_sizes(ctx_p, keylen)) {
329c7b31c88SGilad Ben-Yossef dev_dbg(dev, "Unsupported key size %d.\n", keylen);
330a794d8d8SGilad Ben-Yossef return -EINVAL;
331a794d8d8SGilad Ben-Yossef }
332a794d8d8SGilad Ben-Yossef
33352f42c65SGilad Ben-Yossef ctx_p->keylen = keylen;
334520f325aSGilad Ben-Yossef ctx_p->fallback_on = false;
33552f42c65SGilad Ben-Yossef
33652f42c65SGilad Ben-Yossef switch (cc_slot_to_key_type(hki.hw_key1)) {
33752f42c65SGilad Ben-Yossef case CC_HW_PROTECTED_KEY:
33852f42c65SGilad Ben-Yossef if (ctx_p->flow_mode == S_DIN_to_SM4) {
33952f42c65SGilad Ben-Yossef dev_err(dev, "Only AES HW protected keys are supported\n");
34052f42c65SGilad Ben-Yossef return -EINVAL;
34152f42c65SGilad Ben-Yossef }
34252f42c65SGilad Ben-Yossef
343a794d8d8SGilad Ben-Yossef ctx_p->hw.key1_slot = cc_slot_to_hw_key(hki.hw_key1);
344a794d8d8SGilad Ben-Yossef if (ctx_p->hw.key1_slot == END_OF_KEYS) {
34552f42c65SGilad Ben-Yossef dev_err(dev, "Unsupported hw key1 number (%d)\n",
34652f42c65SGilad Ben-Yossef hki.hw_key1);
347a794d8d8SGilad Ben-Yossef return -EINVAL;
348a794d8d8SGilad Ben-Yossef }
349a794d8d8SGilad Ben-Yossef
350a794d8d8SGilad Ben-Yossef if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
3511d8b41ffSGilad Ben-Yossef ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
352a794d8d8SGilad Ben-Yossef if (hki.hw_key1 == hki.hw_key2) {
353a794d8d8SGilad Ben-Yossef dev_err(dev, "Illegal hw key numbers (%d,%d)\n",
354a794d8d8SGilad Ben-Yossef hki.hw_key1, hki.hw_key2);
355a794d8d8SGilad Ben-Yossef return -EINVAL;
356a794d8d8SGilad Ben-Yossef }
35752f42c65SGilad Ben-Yossef
358a794d8d8SGilad Ben-Yossef ctx_p->hw.key2_slot = cc_slot_to_hw_key(hki.hw_key2);
359a794d8d8SGilad Ben-Yossef if (ctx_p->hw.key2_slot == END_OF_KEYS) {
360a794d8d8SGilad Ben-Yossef dev_err(dev, "Unsupported hw key2 number (%d)\n",
361a794d8d8SGilad Ben-Yossef hki.hw_key2);
362a794d8d8SGilad Ben-Yossef return -EINVAL;
363a794d8d8SGilad Ben-Yossef }
364a794d8d8SGilad Ben-Yossef }
365a794d8d8SGilad Ben-Yossef
36652f42c65SGilad Ben-Yossef ctx_p->key_type = CC_HW_PROTECTED_KEY;
36752f42c65SGilad Ben-Yossef dev_dbg(dev, "HW protected key %d/%d set\n.",
36852f42c65SGilad Ben-Yossef ctx_p->hw.key1_slot, ctx_p->hw.key2_slot);
36952f42c65SGilad Ben-Yossef break;
37052f42c65SGilad Ben-Yossef
37152f42c65SGilad Ben-Yossef case CC_POLICY_PROTECTED_KEY:
37252f42c65SGilad Ben-Yossef if (ctx_p->drvdata->hw_rev < CC_HW_REV_713) {
37352f42c65SGilad Ben-Yossef dev_err(dev, "CPP keys not supported in this hardware revision.\n");
37452f42c65SGilad Ben-Yossef return -EINVAL;
37552f42c65SGilad Ben-Yossef }
37652f42c65SGilad Ben-Yossef
37752f42c65SGilad Ben-Yossef if (ctx_p->cipher_mode != DRV_CIPHER_CBC &&
37852f42c65SGilad Ben-Yossef ctx_p->cipher_mode != DRV_CIPHER_CTR) {
37952f42c65SGilad Ben-Yossef dev_err(dev, "CPP keys only supported in CBC or CTR modes.\n");
38052f42c65SGilad Ben-Yossef return -EINVAL;
38152f42c65SGilad Ben-Yossef }
38252f42c65SGilad Ben-Yossef
38352f42c65SGilad Ben-Yossef ctx_p->cpp.slot = cc_slot_to_cpp_key(hki.hw_key1);
38452f42c65SGilad Ben-Yossef if (ctx_p->flow_mode == S_DIN_to_AES)
38552f42c65SGilad Ben-Yossef ctx_p->cpp.alg = CC_CPP_AES;
38652f42c65SGilad Ben-Yossef else /* Must be SM4 since due to sethkey registration */
38752f42c65SGilad Ben-Yossef ctx_p->cpp.alg = CC_CPP_SM4;
38852f42c65SGilad Ben-Yossef ctx_p->key_type = CC_POLICY_PROTECTED_KEY;
38922e2db68SColin Ian King dev_dbg(dev, "policy protected key alg: %d slot: %d.\n",
39052f42c65SGilad Ben-Yossef ctx_p->cpp.alg, ctx_p->cpp.slot);
39152f42c65SGilad Ben-Yossef break;
39252f42c65SGilad Ben-Yossef
39352f42c65SGilad Ben-Yossef default:
39452f42c65SGilad Ben-Yossef dev_err(dev, "Unsupported protected key (%d)\n", hki.hw_key1);
39552f42c65SGilad Ben-Yossef return -EINVAL;
39652f42c65SGilad Ben-Yossef }
397a794d8d8SGilad Ben-Yossef
398a794d8d8SGilad Ben-Yossef return 0;
399a794d8d8SGilad Ben-Yossef }
400a794d8d8SGilad Ben-Yossef
cc_cipher_setkey(struct crypto_skcipher * sktfm,const u8 * key,unsigned int keylen)40163ee04c8SGilad Ben-Yossef static int cc_cipher_setkey(struct crypto_skcipher *sktfm, const u8 *key,
40263ee04c8SGilad Ben-Yossef unsigned int keylen)
40363ee04c8SGilad Ben-Yossef {
40463ee04c8SGilad Ben-Yossef struct crypto_tfm *tfm = crypto_skcipher_tfm(sktfm);
40563ee04c8SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
40663ee04c8SGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
40763ee04c8SGilad Ben-Yossef struct cc_crypto_alg *cc_alg =
40863ee04c8SGilad Ben-Yossef container_of(tfm->__crt_alg, struct cc_crypto_alg,
40963ee04c8SGilad Ben-Yossef skcipher_alg.base);
41063ee04c8SGilad Ben-Yossef unsigned int max_key_buf_size = cc_alg->skcipher_alg.max_keysize;
41163ee04c8SGilad Ben-Yossef
41263ee04c8SGilad Ben-Yossef dev_dbg(dev, "Setting key in context @%p for %s. keylen=%u\n",
41363ee04c8SGilad Ben-Yossef ctx_p, crypto_tfm_alg_name(tfm), keylen);
414f4274eecSGeert Uytterhoeven dump_byte_array("key", key, keylen);
41563ee04c8SGilad Ben-Yossef
41663ee04c8SGilad Ben-Yossef /* STAT_PHASE_0: Init and sanity checks */
41763ee04c8SGilad Ben-Yossef
41863ee04c8SGilad Ben-Yossef if (validate_keys_sizes(ctx_p, keylen)) {
419520f325aSGilad Ben-Yossef dev_dbg(dev, "Invalid key size %d.\n", keylen);
42063ee04c8SGilad Ben-Yossef return -EINVAL;
42163ee04c8SGilad Ben-Yossef }
42263ee04c8SGilad Ben-Yossef
423520f325aSGilad Ben-Yossef if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
424520f325aSGilad Ben-Yossef
425520f325aSGilad Ben-Yossef /* We only support 256 bit ESSIV-CBC-AES keys */
426520f325aSGilad Ben-Yossef if (keylen != AES_KEYSIZE_256) {
427520f325aSGilad Ben-Yossef unsigned int flags = crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_MASK;
428520f325aSGilad Ben-Yossef
429520f325aSGilad Ben-Yossef if (likely(ctx_p->fallback_tfm)) {
430520f325aSGilad Ben-Yossef ctx_p->fallback_on = true;
431520f325aSGilad Ben-Yossef crypto_skcipher_clear_flags(ctx_p->fallback_tfm,
432520f325aSGilad Ben-Yossef CRYPTO_TFM_REQ_MASK);
433520f325aSGilad Ben-Yossef crypto_skcipher_clear_flags(ctx_p->fallback_tfm, flags);
434520f325aSGilad Ben-Yossef return crypto_skcipher_setkey(ctx_p->fallback_tfm, key, keylen);
435520f325aSGilad Ben-Yossef }
436520f325aSGilad Ben-Yossef
437520f325aSGilad Ben-Yossef dev_dbg(dev, "Unsupported key size %d and no fallback.\n", keylen);
438520f325aSGilad Ben-Yossef return -EINVAL;
439520f325aSGilad Ben-Yossef }
440520f325aSGilad Ben-Yossef
441520f325aSGilad Ben-Yossef /* Internal ESSIV key buffer is double sized */
442520f325aSGilad Ben-Yossef max_key_buf_size <<= 1;
443520f325aSGilad Ben-Yossef }
444520f325aSGilad Ben-Yossef
445520f325aSGilad Ben-Yossef ctx_p->fallback_on = false;
44652f42c65SGilad Ben-Yossef ctx_p->key_type = CC_UNPROTECTED_KEY;
44763ee04c8SGilad Ben-Yossef
44863ee04c8SGilad Ben-Yossef /*
44963ee04c8SGilad Ben-Yossef * Verify DES weak keys
45063ee04c8SGilad Ben-Yossef * Note that we're dropping the expanded key since the
45163ee04c8SGilad Ben-Yossef * HW does the expansion on its own.
45263ee04c8SGilad Ben-Yossef */
45363ee04c8SGilad Ben-Yossef if (ctx_p->flow_mode == S_DIN_to_DES) {
45400cd6b23SArd Biesheuvel if ((keylen == DES3_EDE_KEY_SIZE &&
45500cd6b23SArd Biesheuvel verify_skcipher_des3_key(sktfm, key)) ||
45600cd6b23SArd Biesheuvel verify_skcipher_des_key(sktfm, key)) {
45763ee04c8SGilad Ben-Yossef dev_dbg(dev, "weak DES key");
45863ee04c8SGilad Ben-Yossef return -EINVAL;
45963ee04c8SGilad Ben-Yossef }
46063ee04c8SGilad Ben-Yossef }
46163ee04c8SGilad Ben-Yossef
46263ee04c8SGilad Ben-Yossef if (ctx_p->cipher_mode == DRV_CIPHER_XTS &&
463*0ee43367SVladis Dronov xts_verify_key(sktfm, key, keylen)) {
46463ee04c8SGilad Ben-Yossef dev_dbg(dev, "weak XTS key");
46563ee04c8SGilad Ben-Yossef return -EINVAL;
46663ee04c8SGilad Ben-Yossef }
46763ee04c8SGilad Ben-Yossef
46863ee04c8SGilad Ben-Yossef /* STAT_PHASE_1: Copy key to ctx */
46963ee04c8SGilad Ben-Yossef dma_sync_single_for_cpu(dev, ctx_p->user.key_dma_addr,
47063ee04c8SGilad Ben-Yossef max_key_buf_size, DMA_TO_DEVICE);
47163ee04c8SGilad Ben-Yossef
47263ee04c8SGilad Ben-Yossef memcpy(ctx_p->user.key, key, keylen);
47363ee04c8SGilad Ben-Yossef
47463ee04c8SGilad Ben-Yossef if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
47563ee04c8SGilad Ben-Yossef /* sha256 for key2 - use sw implementation */
47663ee04c8SGilad Ben-Yossef int err;
47763ee04c8SGilad Ben-Yossef
4788cbb8097SEric Biggers err = crypto_shash_tfm_digest(ctx_p->shash_tfm,
479520f325aSGilad Ben-Yossef ctx_p->user.key, keylen,
480520f325aSGilad Ben-Yossef ctx_p->user.key + keylen);
48163ee04c8SGilad Ben-Yossef if (err) {
48263ee04c8SGilad Ben-Yossef dev_err(dev, "Failed to hash ESSIV key.\n");
48363ee04c8SGilad Ben-Yossef return err;
48463ee04c8SGilad Ben-Yossef }
485520f325aSGilad Ben-Yossef
486520f325aSGilad Ben-Yossef keylen <<= 1;
48763ee04c8SGilad Ben-Yossef }
48863ee04c8SGilad Ben-Yossef dma_sync_single_for_device(dev, ctx_p->user.key_dma_addr,
48963ee04c8SGilad Ben-Yossef max_key_buf_size, DMA_TO_DEVICE);
49063ee04c8SGilad Ben-Yossef ctx_p->keylen = keylen;
49163ee04c8SGilad Ben-Yossef
49263ee04c8SGilad Ben-Yossef dev_dbg(dev, "return safely");
49363ee04c8SGilad Ben-Yossef return 0;
49463ee04c8SGilad Ben-Yossef }
49563ee04c8SGilad Ben-Yossef
cc_out_setup_mode(struct cc_cipher_ctx * ctx_p)4966f17e00fSGilad Ben-Yossef static int cc_out_setup_mode(struct cc_cipher_ctx *ctx_p)
4976f17e00fSGilad Ben-Yossef {
4986f17e00fSGilad Ben-Yossef switch (ctx_p->flow_mode) {
4996f17e00fSGilad Ben-Yossef case S_DIN_to_AES:
5006f17e00fSGilad Ben-Yossef return S_AES_to_DOUT;
5016f17e00fSGilad Ben-Yossef case S_DIN_to_DES:
5026f17e00fSGilad Ben-Yossef return S_DES_to_DOUT;
5036f17e00fSGilad Ben-Yossef case S_DIN_to_SM4:
5046f17e00fSGilad Ben-Yossef return S_SM4_to_DOUT;
5056f17e00fSGilad Ben-Yossef default:
5066f17e00fSGilad Ben-Yossef return ctx_p->flow_mode;
5076f17e00fSGilad Ben-Yossef }
5086f17e00fSGilad Ben-Yossef }
5096f17e00fSGilad Ben-Yossef
cc_setup_readiv_desc(struct crypto_tfm * tfm,struct cipher_req_ctx * req_ctx,unsigned int ivsize,struct cc_hw_desc desc[],unsigned int * seq_size)5106f17e00fSGilad Ben-Yossef static void cc_setup_readiv_desc(struct crypto_tfm *tfm,
5116f17e00fSGilad Ben-Yossef struct cipher_req_ctx *req_ctx,
5126f17e00fSGilad Ben-Yossef unsigned int ivsize, struct cc_hw_desc desc[],
5136f17e00fSGilad Ben-Yossef unsigned int *seq_size)
5146f17e00fSGilad Ben-Yossef {
5156f17e00fSGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
5166f17e00fSGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
5176f17e00fSGilad Ben-Yossef int cipher_mode = ctx_p->cipher_mode;
5186f17e00fSGilad Ben-Yossef int flow_mode = cc_out_setup_mode(ctx_p);
5196f17e00fSGilad Ben-Yossef int direction = req_ctx->gen_ctx.op_type;
5206f17e00fSGilad Ben-Yossef dma_addr_t iv_dma_addr = req_ctx->gen_ctx.iv_dma_addr;
5216f17e00fSGilad Ben-Yossef
5226f17e00fSGilad Ben-Yossef if (ctx_p->key_type == CC_POLICY_PROTECTED_KEY)
5236f17e00fSGilad Ben-Yossef return;
5246f17e00fSGilad Ben-Yossef
5256f17e00fSGilad Ben-Yossef switch (cipher_mode) {
5266f17e00fSGilad Ben-Yossef case DRV_CIPHER_ECB:
5276f17e00fSGilad Ben-Yossef break;
5286f17e00fSGilad Ben-Yossef case DRV_CIPHER_CBC:
5296f17e00fSGilad Ben-Yossef case DRV_CIPHER_CBC_CTS:
5306f17e00fSGilad Ben-Yossef case DRV_CIPHER_CTR:
5316f17e00fSGilad Ben-Yossef case DRV_CIPHER_OFB:
5326f17e00fSGilad Ben-Yossef /* Read next IV */
5336f17e00fSGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
5346f17e00fSGilad Ben-Yossef set_dout_dlli(&desc[*seq_size], iv_dma_addr, ivsize, NS_BIT, 1);
5356f17e00fSGilad Ben-Yossef set_cipher_config0(&desc[*seq_size], direction);
5366f17e00fSGilad Ben-Yossef set_flow_mode(&desc[*seq_size], flow_mode);
5376f17e00fSGilad Ben-Yossef set_cipher_mode(&desc[*seq_size], cipher_mode);
5386f17e00fSGilad Ben-Yossef if (cipher_mode == DRV_CIPHER_CTR ||
5396f17e00fSGilad Ben-Yossef cipher_mode == DRV_CIPHER_OFB) {
5406f17e00fSGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_WRITE_STATE1);
5416f17e00fSGilad Ben-Yossef } else {
5426f17e00fSGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_WRITE_STATE0);
5436f17e00fSGilad Ben-Yossef }
5446f17e00fSGilad Ben-Yossef set_queue_last_ind(ctx_p->drvdata, &desc[*seq_size]);
5456f17e00fSGilad Ben-Yossef (*seq_size)++;
5466f17e00fSGilad Ben-Yossef break;
5476f17e00fSGilad Ben-Yossef case DRV_CIPHER_XTS:
5486f17e00fSGilad Ben-Yossef case DRV_CIPHER_ESSIV:
5496f17e00fSGilad Ben-Yossef /* IV */
5506f17e00fSGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
5516f17e00fSGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_WRITE_STATE1);
5526f17e00fSGilad Ben-Yossef set_cipher_mode(&desc[*seq_size], cipher_mode);
5536f17e00fSGilad Ben-Yossef set_cipher_config0(&desc[*seq_size], direction);
5546f17e00fSGilad Ben-Yossef set_flow_mode(&desc[*seq_size], flow_mode);
5556f17e00fSGilad Ben-Yossef set_dout_dlli(&desc[*seq_size], iv_dma_addr, CC_AES_BLOCK_SIZE,
5566f17e00fSGilad Ben-Yossef NS_BIT, 1);
5576f17e00fSGilad Ben-Yossef set_queue_last_ind(ctx_p->drvdata, &desc[*seq_size]);
5586f17e00fSGilad Ben-Yossef (*seq_size)++;
5596f17e00fSGilad Ben-Yossef break;
5606f17e00fSGilad Ben-Yossef default:
5616f17e00fSGilad Ben-Yossef dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
5626f17e00fSGilad Ben-Yossef }
5636f17e00fSGilad Ben-Yossef }
5646f17e00fSGilad Ben-Yossef
5655c83e8ecSOfir Drang
cc_setup_state_desc(struct crypto_tfm * tfm,struct cipher_req_ctx * req_ctx,unsigned int ivsize,unsigned int nbytes,struct cc_hw_desc desc[],unsigned int * seq_size)566dd8486c7SGilad Ben-Yossef static void cc_setup_state_desc(struct crypto_tfm *tfm,
56763ee04c8SGilad Ben-Yossef struct cipher_req_ctx *req_ctx,
56863ee04c8SGilad Ben-Yossef unsigned int ivsize, unsigned int nbytes,
56963ee04c8SGilad Ben-Yossef struct cc_hw_desc desc[],
57063ee04c8SGilad Ben-Yossef unsigned int *seq_size)
57163ee04c8SGilad Ben-Yossef {
57263ee04c8SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
57363ee04c8SGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
57463ee04c8SGilad Ben-Yossef int cipher_mode = ctx_p->cipher_mode;
57563ee04c8SGilad Ben-Yossef int flow_mode = ctx_p->flow_mode;
57663ee04c8SGilad Ben-Yossef int direction = req_ctx->gen_ctx.op_type;
57763ee04c8SGilad Ben-Yossef dma_addr_t iv_dma_addr = req_ctx->gen_ctx.iv_dma_addr;
57863ee04c8SGilad Ben-Yossef
57963ee04c8SGilad Ben-Yossef switch (cipher_mode) {
580dd8486c7SGilad Ben-Yossef case DRV_CIPHER_ECB:
581dd8486c7SGilad Ben-Yossef break;
58263ee04c8SGilad Ben-Yossef case DRV_CIPHER_CBC:
58363ee04c8SGilad Ben-Yossef case DRV_CIPHER_CBC_CTS:
58463ee04c8SGilad Ben-Yossef case DRV_CIPHER_CTR:
58563ee04c8SGilad Ben-Yossef case DRV_CIPHER_OFB:
586dd8486c7SGilad Ben-Yossef /* Load IV */
58763ee04c8SGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
58863ee04c8SGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_DLLI, iv_dma_addr, ivsize,
58963ee04c8SGilad Ben-Yossef NS_BIT);
59063ee04c8SGilad Ben-Yossef set_cipher_config0(&desc[*seq_size], direction);
59163ee04c8SGilad Ben-Yossef set_flow_mode(&desc[*seq_size], flow_mode);
59263ee04c8SGilad Ben-Yossef set_cipher_mode(&desc[*seq_size], cipher_mode);
59363ee04c8SGilad Ben-Yossef if (cipher_mode == DRV_CIPHER_CTR ||
59463ee04c8SGilad Ben-Yossef cipher_mode == DRV_CIPHER_OFB) {
59563ee04c8SGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE1);
59663ee04c8SGilad Ben-Yossef } else {
59763ee04c8SGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE0);
59863ee04c8SGilad Ben-Yossef }
59963ee04c8SGilad Ben-Yossef (*seq_size)++;
600dd8486c7SGilad Ben-Yossef break;
601dd8486c7SGilad Ben-Yossef case DRV_CIPHER_XTS:
602dd8486c7SGilad Ben-Yossef case DRV_CIPHER_ESSIV:
6035c83e8ecSOfir Drang break;
6045c83e8ecSOfir Drang default:
6055c83e8ecSOfir Drang dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
6065c83e8ecSOfir Drang }
6075c83e8ecSOfir Drang }
6085c83e8ecSOfir Drang
6095c83e8ecSOfir Drang
cc_setup_xex_state_desc(struct crypto_tfm * tfm,struct cipher_req_ctx * req_ctx,unsigned int ivsize,unsigned int nbytes,struct cc_hw_desc desc[],unsigned int * seq_size)6105c83e8ecSOfir Drang static void cc_setup_xex_state_desc(struct crypto_tfm *tfm,
6115c83e8ecSOfir Drang struct cipher_req_ctx *req_ctx,
6125c83e8ecSOfir Drang unsigned int ivsize, unsigned int nbytes,
6135c83e8ecSOfir Drang struct cc_hw_desc desc[],
6145c83e8ecSOfir Drang unsigned int *seq_size)
6155c83e8ecSOfir Drang {
6165c83e8ecSOfir Drang struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
6175c83e8ecSOfir Drang struct device *dev = drvdata_to_dev(ctx_p->drvdata);
6185c83e8ecSOfir Drang int cipher_mode = ctx_p->cipher_mode;
6195c83e8ecSOfir Drang int flow_mode = ctx_p->flow_mode;
6205c83e8ecSOfir Drang int direction = req_ctx->gen_ctx.op_type;
6215c83e8ecSOfir Drang dma_addr_t key_dma_addr = ctx_p->user.key_dma_addr;
622520f325aSGilad Ben-Yossef unsigned int key_len = (ctx_p->keylen / 2);
6235c83e8ecSOfir Drang dma_addr_t iv_dma_addr = req_ctx->gen_ctx.iv_dma_addr;
624520f325aSGilad Ben-Yossef unsigned int key_offset = key_len;
6255c83e8ecSOfir Drang
6265c83e8ecSOfir Drang switch (cipher_mode) {
6275c83e8ecSOfir Drang case DRV_CIPHER_ECB:
6285c83e8ecSOfir Drang break;
6295c83e8ecSOfir Drang case DRV_CIPHER_CBC:
6305c83e8ecSOfir Drang case DRV_CIPHER_CBC_CTS:
6315c83e8ecSOfir Drang case DRV_CIPHER_CTR:
6325c83e8ecSOfir Drang case DRV_CIPHER_OFB:
6335c83e8ecSOfir Drang break;
6345c83e8ecSOfir Drang case DRV_CIPHER_XTS:
6355c83e8ecSOfir Drang case DRV_CIPHER_ESSIV:
636520f325aSGilad Ben-Yossef
637520f325aSGilad Ben-Yossef if (cipher_mode == DRV_CIPHER_ESSIV)
638520f325aSGilad Ben-Yossef key_len = SHA256_DIGEST_SIZE;
639520f325aSGilad Ben-Yossef
640dd8486c7SGilad Ben-Yossef /* load XEX key */
641dd8486c7SGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
642dd8486c7SGilad Ben-Yossef set_cipher_mode(&desc[*seq_size], cipher_mode);
643dd8486c7SGilad Ben-Yossef set_cipher_config0(&desc[*seq_size], direction);
64452f42c65SGilad Ben-Yossef if (cc_key_type(tfm) == CC_HW_PROTECTED_KEY) {
645dd8486c7SGilad Ben-Yossef set_hw_crypto_key(&desc[*seq_size],
646dd8486c7SGilad Ben-Yossef ctx_p->hw.key2_slot);
647dd8486c7SGilad Ben-Yossef } else {
648dd8486c7SGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_DLLI,
649520f325aSGilad Ben-Yossef (key_dma_addr + key_offset),
650520f325aSGilad Ben-Yossef key_len, NS_BIT);
651dd8486c7SGilad Ben-Yossef }
652a93492caSGilad Ben-Yossef set_xex_data_unit_size(&desc[*seq_size], nbytes);
653dd8486c7SGilad Ben-Yossef set_flow_mode(&desc[*seq_size], S_DIN_to_AES2);
654520f325aSGilad Ben-Yossef set_key_size_aes(&desc[*seq_size], key_len);
655dd8486c7SGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_LOAD_XEX_KEY);
656dd8486c7SGilad Ben-Yossef (*seq_size)++;
657dd8486c7SGilad Ben-Yossef
658dd8486c7SGilad Ben-Yossef /* Load IV */
659dd8486c7SGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
660dd8486c7SGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE1);
661dd8486c7SGilad Ben-Yossef set_cipher_mode(&desc[*seq_size], cipher_mode);
662dd8486c7SGilad Ben-Yossef set_cipher_config0(&desc[*seq_size], direction);
663520f325aSGilad Ben-Yossef set_key_size_aes(&desc[*seq_size], key_len);
664dd8486c7SGilad Ben-Yossef set_flow_mode(&desc[*seq_size], flow_mode);
665dd8486c7SGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_DLLI, iv_dma_addr,
666dd8486c7SGilad Ben-Yossef CC_AES_BLOCK_SIZE, NS_BIT);
667dd8486c7SGilad Ben-Yossef (*seq_size)++;
668dd8486c7SGilad Ben-Yossef break;
669dd8486c7SGilad Ben-Yossef default:
670dd8486c7SGilad Ben-Yossef dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
671dd8486c7SGilad Ben-Yossef }
672dd8486c7SGilad Ben-Yossef }
673dd8486c7SGilad Ben-Yossef
cc_out_flow_mode(struct cc_cipher_ctx * ctx_p)674533edf9fSGilad Ben-Yossef static int cc_out_flow_mode(struct cc_cipher_ctx *ctx_p)
675533edf9fSGilad Ben-Yossef {
676533edf9fSGilad Ben-Yossef switch (ctx_p->flow_mode) {
677533edf9fSGilad Ben-Yossef case S_DIN_to_AES:
678533edf9fSGilad Ben-Yossef return DIN_AES_DOUT;
679533edf9fSGilad Ben-Yossef case S_DIN_to_DES:
680533edf9fSGilad Ben-Yossef return DIN_DES_DOUT;
681533edf9fSGilad Ben-Yossef case S_DIN_to_SM4:
682533edf9fSGilad Ben-Yossef return DIN_SM4_DOUT;
683533edf9fSGilad Ben-Yossef default:
684533edf9fSGilad Ben-Yossef return ctx_p->flow_mode;
685533edf9fSGilad Ben-Yossef }
686533edf9fSGilad Ben-Yossef }
687dd8486c7SGilad Ben-Yossef
cc_setup_key_desc(struct crypto_tfm * tfm,struct cipher_req_ctx * req_ctx,unsigned int nbytes,struct cc_hw_desc desc[],unsigned int * seq_size)688dd8486c7SGilad Ben-Yossef static void cc_setup_key_desc(struct crypto_tfm *tfm,
689dd8486c7SGilad Ben-Yossef struct cipher_req_ctx *req_ctx,
690dd8486c7SGilad Ben-Yossef unsigned int nbytes, struct cc_hw_desc desc[],
691dd8486c7SGilad Ben-Yossef unsigned int *seq_size)
692dd8486c7SGilad Ben-Yossef {
693dd8486c7SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
694dd8486c7SGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
695dd8486c7SGilad Ben-Yossef int cipher_mode = ctx_p->cipher_mode;
696dd8486c7SGilad Ben-Yossef int flow_mode = ctx_p->flow_mode;
697dd8486c7SGilad Ben-Yossef int direction = req_ctx->gen_ctx.op_type;
698dd8486c7SGilad Ben-Yossef dma_addr_t key_dma_addr = ctx_p->user.key_dma_addr;
699dd8486c7SGilad Ben-Yossef unsigned int key_len = ctx_p->keylen;
70052f42c65SGilad Ben-Yossef unsigned int din_size;
701dd8486c7SGilad Ben-Yossef
702dd8486c7SGilad Ben-Yossef switch (cipher_mode) {
703dd8486c7SGilad Ben-Yossef case DRV_CIPHER_CBC:
704dd8486c7SGilad Ben-Yossef case DRV_CIPHER_CBC_CTS:
705dd8486c7SGilad Ben-Yossef case DRV_CIPHER_CTR:
706dd8486c7SGilad Ben-Yossef case DRV_CIPHER_OFB:
70763ee04c8SGilad Ben-Yossef case DRV_CIPHER_ECB:
70863ee04c8SGilad Ben-Yossef /* Load key */
70963ee04c8SGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
71063ee04c8SGilad Ben-Yossef set_cipher_mode(&desc[*seq_size], cipher_mode);
71163ee04c8SGilad Ben-Yossef set_cipher_config0(&desc[*seq_size], direction);
712533edf9fSGilad Ben-Yossef
713533edf9fSGilad Ben-Yossef if (cc_key_type(tfm) == CC_POLICY_PROTECTED_KEY) {
714533edf9fSGilad Ben-Yossef /* We use the AES key size coding for all CPP algs */
715533edf9fSGilad Ben-Yossef set_key_size_aes(&desc[*seq_size], key_len);
716533edf9fSGilad Ben-Yossef set_cpp_crypto_key(&desc[*seq_size], ctx_p->cpp.slot);
717533edf9fSGilad Ben-Yossef flow_mode = cc_out_flow_mode(ctx_p);
718533edf9fSGilad Ben-Yossef } else {
71963ee04c8SGilad Ben-Yossef if (flow_mode == S_DIN_to_AES) {
72052f42c65SGilad Ben-Yossef if (cc_key_type(tfm) == CC_HW_PROTECTED_KEY) {
72163ee04c8SGilad Ben-Yossef set_hw_crypto_key(&desc[*seq_size],
72263ee04c8SGilad Ben-Yossef ctx_p->hw.key1_slot);
72363ee04c8SGilad Ben-Yossef } else {
72452f42c65SGilad Ben-Yossef /* CC_POLICY_UNPROTECTED_KEY
72552f42c65SGilad Ben-Yossef * Invalid keys are filtered out in
72652f42c65SGilad Ben-Yossef * sethkey()
72752f42c65SGilad Ben-Yossef */
72852f42c65SGilad Ben-Yossef din_size = (key_len == 24) ?
72952f42c65SGilad Ben-Yossef AES_MAX_KEY_SIZE : key_len;
73052f42c65SGilad Ben-Yossef
73163ee04c8SGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_DLLI,
73252f42c65SGilad Ben-Yossef key_dma_addr, din_size,
73352f42c65SGilad Ben-Yossef NS_BIT);
73463ee04c8SGilad Ben-Yossef }
73563ee04c8SGilad Ben-Yossef set_key_size_aes(&desc[*seq_size], key_len);
73663ee04c8SGilad Ben-Yossef } else {
73763ee04c8SGilad Ben-Yossef /*des*/
73852f42c65SGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_DLLI,
73952f42c65SGilad Ben-Yossef key_dma_addr, key_len, NS_BIT);
74063ee04c8SGilad Ben-Yossef set_key_size_des(&desc[*seq_size], key_len);
74163ee04c8SGilad Ben-Yossef }
74263ee04c8SGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_LOAD_KEY0);
74352f42c65SGilad Ben-Yossef }
744533edf9fSGilad Ben-Yossef set_flow_mode(&desc[*seq_size], flow_mode);
74563ee04c8SGilad Ben-Yossef (*seq_size)++;
74663ee04c8SGilad Ben-Yossef break;
74763ee04c8SGilad Ben-Yossef case DRV_CIPHER_XTS:
74863ee04c8SGilad Ben-Yossef case DRV_CIPHER_ESSIV:
74963ee04c8SGilad Ben-Yossef /* Load AES key */
75063ee04c8SGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
75163ee04c8SGilad Ben-Yossef set_cipher_mode(&desc[*seq_size], cipher_mode);
75263ee04c8SGilad Ben-Yossef set_cipher_config0(&desc[*seq_size], direction);
75352f42c65SGilad Ben-Yossef if (cc_key_type(tfm) == CC_HW_PROTECTED_KEY) {
75463ee04c8SGilad Ben-Yossef set_hw_crypto_key(&desc[*seq_size],
75563ee04c8SGilad Ben-Yossef ctx_p->hw.key1_slot);
75663ee04c8SGilad Ben-Yossef } else {
75763ee04c8SGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_DLLI, key_dma_addr,
75863ee04c8SGilad Ben-Yossef (key_len / 2), NS_BIT);
75963ee04c8SGilad Ben-Yossef }
76063ee04c8SGilad Ben-Yossef set_key_size_aes(&desc[*seq_size], (key_len / 2));
76163ee04c8SGilad Ben-Yossef set_flow_mode(&desc[*seq_size], flow_mode);
76263ee04c8SGilad Ben-Yossef set_setup_mode(&desc[*seq_size], SETUP_LOAD_KEY0);
76363ee04c8SGilad Ben-Yossef (*seq_size)++;
76463ee04c8SGilad Ben-Yossef break;
76563ee04c8SGilad Ben-Yossef default:
76663ee04c8SGilad Ben-Yossef dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
76763ee04c8SGilad Ben-Yossef }
76863ee04c8SGilad Ben-Yossef }
76963ee04c8SGilad Ben-Yossef
cc_setup_mlli_desc(struct crypto_tfm * tfm,struct cipher_req_ctx * req_ctx,struct scatterlist * dst,struct scatterlist * src,unsigned int nbytes,void * areq,struct cc_hw_desc desc[],unsigned int * seq_size)7704b1d7debSGilad Ben-Yossef static void cc_setup_mlli_desc(struct crypto_tfm *tfm,
77163ee04c8SGilad Ben-Yossef struct cipher_req_ctx *req_ctx,
7724b1d7debSGilad Ben-Yossef struct scatterlist *dst, struct scatterlist *src,
7734b1d7debSGilad Ben-Yossef unsigned int nbytes, void *areq,
7744b1d7debSGilad Ben-Yossef struct cc_hw_desc desc[], unsigned int *seq_size)
7754b1d7debSGilad Ben-Yossef {
7764b1d7debSGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
7774b1d7debSGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
7784b1d7debSGilad Ben-Yossef
7794b1d7debSGilad Ben-Yossef if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI) {
7804b1d7debSGilad Ben-Yossef /* bypass */
7814b1d7debSGilad Ben-Yossef dev_dbg(dev, " bypass params addr %pad length 0x%X addr 0x%08X\n",
7824b1d7debSGilad Ben-Yossef &req_ctx->mlli_params.mlli_dma_addr,
7834b1d7debSGilad Ben-Yossef req_ctx->mlli_params.mlli_len,
7841a895f1dSGeert Uytterhoeven ctx_p->drvdata->mlli_sram_addr);
7854b1d7debSGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
7864b1d7debSGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_DLLI,
7874b1d7debSGilad Ben-Yossef req_ctx->mlli_params.mlli_dma_addr,
7884b1d7debSGilad Ben-Yossef req_ctx->mlli_params.mlli_len, NS_BIT);
7894b1d7debSGilad Ben-Yossef set_dout_sram(&desc[*seq_size],
7904b1d7debSGilad Ben-Yossef ctx_p->drvdata->mlli_sram_addr,
7914b1d7debSGilad Ben-Yossef req_ctx->mlli_params.mlli_len);
7924b1d7debSGilad Ben-Yossef set_flow_mode(&desc[*seq_size], BYPASS);
7934b1d7debSGilad Ben-Yossef (*seq_size)++;
7944b1d7debSGilad Ben-Yossef }
7954b1d7debSGilad Ben-Yossef }
7964b1d7debSGilad Ben-Yossef
cc_setup_flow_desc(struct crypto_tfm * tfm,struct cipher_req_ctx * req_ctx,struct scatterlist * dst,struct scatterlist * src,unsigned int nbytes,struct cc_hw_desc desc[],unsigned int * seq_size)7974b1d7debSGilad Ben-Yossef static void cc_setup_flow_desc(struct crypto_tfm *tfm,
7984b1d7debSGilad Ben-Yossef struct cipher_req_ctx *req_ctx,
7994b1d7debSGilad Ben-Yossef struct scatterlist *dst, struct scatterlist *src,
8006f17e00fSGilad Ben-Yossef unsigned int nbytes, struct cc_hw_desc desc[],
8016f17e00fSGilad Ben-Yossef unsigned int *seq_size)
80263ee04c8SGilad Ben-Yossef {
80363ee04c8SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
80463ee04c8SGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
805533edf9fSGilad Ben-Yossef unsigned int flow_mode = cc_out_flow_mode(ctx_p);
8066f17e00fSGilad Ben-Yossef bool last_desc = (ctx_p->key_type == CC_POLICY_PROTECTED_KEY ||
8076f17e00fSGilad Ben-Yossef ctx_p->cipher_mode == DRV_CIPHER_ECB);
80863ee04c8SGilad Ben-Yossef
80963ee04c8SGilad Ben-Yossef /* Process */
81063ee04c8SGilad Ben-Yossef if (req_ctx->dma_buf_type == CC_DMA_BUF_DLLI) {
81163ee04c8SGilad Ben-Yossef dev_dbg(dev, " data params addr %pad length 0x%X\n",
81263ee04c8SGilad Ben-Yossef &sg_dma_address(src), nbytes);
81363ee04c8SGilad Ben-Yossef dev_dbg(dev, " data params addr %pad length 0x%X\n",
81463ee04c8SGilad Ben-Yossef &sg_dma_address(dst), nbytes);
81563ee04c8SGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
81663ee04c8SGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_DLLI, sg_dma_address(src),
81763ee04c8SGilad Ben-Yossef nbytes, NS_BIT);
81863ee04c8SGilad Ben-Yossef set_dout_dlli(&desc[*seq_size], sg_dma_address(dst),
8196f17e00fSGilad Ben-Yossef nbytes, NS_BIT, (!last_desc ? 0 : 1));
8206f17e00fSGilad Ben-Yossef if (last_desc)
82127b3b22dSGilad Ben-Yossef set_queue_last_ind(ctx_p->drvdata, &desc[*seq_size]);
82263ee04c8SGilad Ben-Yossef
82363ee04c8SGilad Ben-Yossef set_flow_mode(&desc[*seq_size], flow_mode);
82463ee04c8SGilad Ben-Yossef (*seq_size)++;
82563ee04c8SGilad Ben-Yossef } else {
82663ee04c8SGilad Ben-Yossef hw_desc_init(&desc[*seq_size]);
82763ee04c8SGilad Ben-Yossef set_din_type(&desc[*seq_size], DMA_MLLI,
82863ee04c8SGilad Ben-Yossef ctx_p->drvdata->mlli_sram_addr,
82963ee04c8SGilad Ben-Yossef req_ctx->in_mlli_nents, NS_BIT);
83063ee04c8SGilad Ben-Yossef if (req_ctx->out_nents == 0) {
83163ee04c8SGilad Ben-Yossef dev_dbg(dev, " din/dout params addr 0x%08X addr 0x%08X\n",
8321a895f1dSGeert Uytterhoeven ctx_p->drvdata->mlli_sram_addr,
8331a895f1dSGeert Uytterhoeven ctx_p->drvdata->mlli_sram_addr);
83463ee04c8SGilad Ben-Yossef set_dout_mlli(&desc[*seq_size],
83563ee04c8SGilad Ben-Yossef ctx_p->drvdata->mlli_sram_addr,
83663ee04c8SGilad Ben-Yossef req_ctx->in_mlli_nents, NS_BIT,
8376f17e00fSGilad Ben-Yossef (!last_desc ? 0 : 1));
83863ee04c8SGilad Ben-Yossef } else {
83963ee04c8SGilad Ben-Yossef dev_dbg(dev, " din/dout params addr 0x%08X addr 0x%08X\n",
8401a895f1dSGeert Uytterhoeven ctx_p->drvdata->mlli_sram_addr,
8411a895f1dSGeert Uytterhoeven ctx_p->drvdata->mlli_sram_addr +
84263ee04c8SGilad Ben-Yossef (u32)LLI_ENTRY_BYTE_SIZE * req_ctx->in_nents);
84363ee04c8SGilad Ben-Yossef set_dout_mlli(&desc[*seq_size],
84463ee04c8SGilad Ben-Yossef (ctx_p->drvdata->mlli_sram_addr +
84563ee04c8SGilad Ben-Yossef (LLI_ENTRY_BYTE_SIZE *
84663ee04c8SGilad Ben-Yossef req_ctx->in_mlli_nents)),
84763ee04c8SGilad Ben-Yossef req_ctx->out_mlli_nents, NS_BIT,
8486f17e00fSGilad Ben-Yossef (!last_desc ? 0 : 1));
84963ee04c8SGilad Ben-Yossef }
8506f17e00fSGilad Ben-Yossef if (last_desc)
85127b3b22dSGilad Ben-Yossef set_queue_last_ind(ctx_p->drvdata, &desc[*seq_size]);
85263ee04c8SGilad Ben-Yossef
85363ee04c8SGilad Ben-Yossef set_flow_mode(&desc[*seq_size], flow_mode);
85463ee04c8SGilad Ben-Yossef (*seq_size)++;
85563ee04c8SGilad Ben-Yossef }
85663ee04c8SGilad Ben-Yossef }
85763ee04c8SGilad Ben-Yossef
cc_cipher_complete(struct device * dev,void * cc_req,int err)85863ee04c8SGilad Ben-Yossef static void cc_cipher_complete(struct device *dev, void *cc_req, int err)
85963ee04c8SGilad Ben-Yossef {
86063ee04c8SGilad Ben-Yossef struct skcipher_request *req = (struct skcipher_request *)cc_req;
86163ee04c8SGilad Ben-Yossef struct scatterlist *dst = req->dst;
86263ee04c8SGilad Ben-Yossef struct scatterlist *src = req->src;
86363ee04c8SGilad Ben-Yossef struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req);
86400904aa0SGilad Ben-Yossef struct crypto_skcipher *sk_tfm = crypto_skcipher_reqtfm(req);
86500904aa0SGilad Ben-Yossef unsigned int ivsize = crypto_skcipher_ivsize(sk_tfm);
86663ee04c8SGilad Ben-Yossef
867a108f931SGilad Ben-Yossef if (err != -EINPROGRESS) {
868a108f931SGilad Ben-Yossef /* Not a BACKLOG notification */
869c139c72eSGilad Ben-Yossef cc_unmap_cipher_request(dev, req_ctx, ivsize, src, dst);
8706f17e00fSGilad Ben-Yossef memcpy(req->iv, req_ctx->iv, ivsize);
871453431a5SWaiman Long kfree_sensitive(req_ctx->iv);
872a108f931SGilad Ben-Yossef }
873a108f931SGilad Ben-Yossef
87463ee04c8SGilad Ben-Yossef skcipher_request_complete(req, err);
87563ee04c8SGilad Ben-Yossef }
87663ee04c8SGilad Ben-Yossef
cc_cipher_process(struct skcipher_request * req,enum drv_crypto_direction direction)87763ee04c8SGilad Ben-Yossef static int cc_cipher_process(struct skcipher_request *req,
87863ee04c8SGilad Ben-Yossef enum drv_crypto_direction direction)
87963ee04c8SGilad Ben-Yossef {
88063ee04c8SGilad Ben-Yossef struct crypto_skcipher *sk_tfm = crypto_skcipher_reqtfm(req);
88163ee04c8SGilad Ben-Yossef struct crypto_tfm *tfm = crypto_skcipher_tfm(sk_tfm);
88263ee04c8SGilad Ben-Yossef struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req);
88363ee04c8SGilad Ben-Yossef unsigned int ivsize = crypto_skcipher_ivsize(sk_tfm);
88463ee04c8SGilad Ben-Yossef struct scatterlist *dst = req->dst;
88563ee04c8SGilad Ben-Yossef struct scatterlist *src = req->src;
88663ee04c8SGilad Ben-Yossef unsigned int nbytes = req->cryptlen;
88763ee04c8SGilad Ben-Yossef void *iv = req->iv;
88863ee04c8SGilad Ben-Yossef struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
88963ee04c8SGilad Ben-Yossef struct device *dev = drvdata_to_dev(ctx_p->drvdata);
8905620eb6cSArd Biesheuvel struct cc_hw_desc desc[MAX_SKCIPHER_SEQ_LEN];
89163ee04c8SGilad Ben-Yossef struct cc_crypto_req cc_req = {};
89284f366daSGilad Ben-Yossef int rc;
89363ee04c8SGilad Ben-Yossef unsigned int seq_len = 0;
89463ee04c8SGilad Ben-Yossef gfp_t flags = cc_gfp_flags(&req->base);
89563ee04c8SGilad Ben-Yossef
89663ee04c8SGilad Ben-Yossef dev_dbg(dev, "%s req=%p iv=%p nbytes=%d\n",
89763ee04c8SGilad Ben-Yossef ((direction == DRV_CRYPTO_DIRECTION_ENCRYPT) ?
89863ee04c8SGilad Ben-Yossef "Encrypt" : "Decrypt"), req, iv, nbytes);
89963ee04c8SGilad Ben-Yossef
90063ee04c8SGilad Ben-Yossef /* STAT_PHASE_0: Init and sanity checks */
90163ee04c8SGilad Ben-Yossef
90263ee04c8SGilad Ben-Yossef if (validate_data_size(ctx_p, nbytes)) {
903c7b31c88SGilad Ben-Yossef dev_dbg(dev, "Unsupported data size %d.\n", nbytes);
90463ee04c8SGilad Ben-Yossef rc = -EINVAL;
90563ee04c8SGilad Ben-Yossef goto exit_process;
90663ee04c8SGilad Ben-Yossef }
90763ee04c8SGilad Ben-Yossef if (nbytes == 0) {
90863ee04c8SGilad Ben-Yossef /* No data to process is valid */
90963ee04c8SGilad Ben-Yossef rc = 0;
91063ee04c8SGilad Ben-Yossef goto exit_process;
91163ee04c8SGilad Ben-Yossef }
91263ee04c8SGilad Ben-Yossef
913520f325aSGilad Ben-Yossef if (ctx_p->fallback_on) {
914520f325aSGilad Ben-Yossef struct skcipher_request *subreq = skcipher_request_ctx(req);
915520f325aSGilad Ben-Yossef
916520f325aSGilad Ben-Yossef *subreq = *req;
917520f325aSGilad Ben-Yossef skcipher_request_set_tfm(subreq, ctx_p->fallback_tfm);
918520f325aSGilad Ben-Yossef if (direction == DRV_CRYPTO_DIRECTION_ENCRYPT)
919520f325aSGilad Ben-Yossef return crypto_skcipher_encrypt(subreq);
920520f325aSGilad Ben-Yossef else
921520f325aSGilad Ben-Yossef return crypto_skcipher_decrypt(subreq);
922520f325aSGilad Ben-Yossef }
923520f325aSGilad Ben-Yossef
924b2cd1d81Sdingsenjie /* The IV we are handed may be allocated from the stack so
92563ee04c8SGilad Ben-Yossef * we must copy it to a DMAable buffer before use.
92663ee04c8SGilad Ben-Yossef */
92701745706SFengguang Wu req_ctx->iv = kmemdup(iv, ivsize, flags);
92863ee04c8SGilad Ben-Yossef if (!req_ctx->iv) {
92963ee04c8SGilad Ben-Yossef rc = -ENOMEM;
93063ee04c8SGilad Ben-Yossef goto exit_process;
93163ee04c8SGilad Ben-Yossef }
93263ee04c8SGilad Ben-Yossef
93363ee04c8SGilad Ben-Yossef /* Setup request structure */
934f4274eecSGeert Uytterhoeven cc_req.user_cb = cc_cipher_complete;
935f4274eecSGeert Uytterhoeven cc_req.user_arg = req;
93663ee04c8SGilad Ben-Yossef
93752f42c65SGilad Ben-Yossef /* Setup CPP operation details */
93852f42c65SGilad Ben-Yossef if (ctx_p->key_type == CC_POLICY_PROTECTED_KEY) {
93952f42c65SGilad Ben-Yossef cc_req.cpp.is_cpp = true;
94052f42c65SGilad Ben-Yossef cc_req.cpp.alg = ctx_p->cpp.alg;
94152f42c65SGilad Ben-Yossef cc_req.cpp.slot = ctx_p->cpp.slot;
94252f42c65SGilad Ben-Yossef }
94352f42c65SGilad Ben-Yossef
94463ee04c8SGilad Ben-Yossef /* Setup request context */
94563ee04c8SGilad Ben-Yossef req_ctx->gen_ctx.op_type = direction;
94663ee04c8SGilad Ben-Yossef
94763ee04c8SGilad Ben-Yossef /* STAT_PHASE_1: Map buffers */
94863ee04c8SGilad Ben-Yossef
94963ee04c8SGilad Ben-Yossef rc = cc_map_cipher_request(ctx_p->drvdata, req_ctx, ivsize, nbytes,
95063ee04c8SGilad Ben-Yossef req_ctx->iv, src, dst, flags);
95163ee04c8SGilad Ben-Yossef if (rc) {
95263ee04c8SGilad Ben-Yossef dev_err(dev, "map_request() failed\n");
95363ee04c8SGilad Ben-Yossef goto exit_process;
95463ee04c8SGilad Ben-Yossef }
95563ee04c8SGilad Ben-Yossef
95663ee04c8SGilad Ben-Yossef /* STAT_PHASE_2: Create sequence */
95763ee04c8SGilad Ben-Yossef
9585c83e8ecSOfir Drang /* Setup state (IV) */
959dd8486c7SGilad Ben-Yossef cc_setup_state_desc(tfm, req_ctx, ivsize, nbytes, desc, &seq_len);
9604b1d7debSGilad Ben-Yossef /* Setup MLLI line, if needed */
9614b1d7debSGilad Ben-Yossef cc_setup_mlli_desc(tfm, req_ctx, dst, src, nbytes, req, desc, &seq_len);
962dd8486c7SGilad Ben-Yossef /* Setup key */
963dd8486c7SGilad Ben-Yossef cc_setup_key_desc(tfm, req_ctx, nbytes, desc, &seq_len);
9645c83e8ecSOfir Drang /* Setup state (IV and XEX key) */
9655c83e8ecSOfir Drang cc_setup_xex_state_desc(tfm, req_ctx, ivsize, nbytes, desc, &seq_len);
96663ee04c8SGilad Ben-Yossef /* Data processing */
9676f17e00fSGilad Ben-Yossef cc_setup_flow_desc(tfm, req_ctx, dst, src, nbytes, desc, &seq_len);
9686f17e00fSGilad Ben-Yossef /* Read next IV */
9696f17e00fSGilad Ben-Yossef cc_setup_readiv_desc(tfm, req_ctx, ivsize, desc, &seq_len);
97063ee04c8SGilad Ben-Yossef
97163ee04c8SGilad Ben-Yossef /* STAT_PHASE_3: Lock HW and push sequence */
97263ee04c8SGilad Ben-Yossef
97363ee04c8SGilad Ben-Yossef rc = cc_send_request(ctx_p->drvdata, &cc_req, desc, seq_len,
97463ee04c8SGilad Ben-Yossef &req->base);
97563ee04c8SGilad Ben-Yossef if (rc != -EINPROGRESS && rc != -EBUSY) {
97663ee04c8SGilad Ben-Yossef /* Failed to send the request or request completed
97763ee04c8SGilad Ben-Yossef * synchronously
97863ee04c8SGilad Ben-Yossef */
97963ee04c8SGilad Ben-Yossef cc_unmap_cipher_request(dev, req_ctx, ivsize, src, dst);
98063ee04c8SGilad Ben-Yossef }
98163ee04c8SGilad Ben-Yossef
98263ee04c8SGilad Ben-Yossef exit_process:
98363ee04c8SGilad Ben-Yossef if (rc != -EINPROGRESS && rc != -EBUSY) {
984453431a5SWaiman Long kfree_sensitive(req_ctx->iv);
98563ee04c8SGilad Ben-Yossef }
98663ee04c8SGilad Ben-Yossef
98763ee04c8SGilad Ben-Yossef return rc;
98863ee04c8SGilad Ben-Yossef }
98963ee04c8SGilad Ben-Yossef
cc_cipher_encrypt(struct skcipher_request * req)99063ee04c8SGilad Ben-Yossef static int cc_cipher_encrypt(struct skcipher_request *req)
99163ee04c8SGilad Ben-Yossef {
99263ee04c8SGilad Ben-Yossef struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req);
99363ee04c8SGilad Ben-Yossef
994e30368f3SGilad Ben-Yossef memset(req_ctx, 0, sizeof(*req_ctx));
99563ee04c8SGilad Ben-Yossef
99663ee04c8SGilad Ben-Yossef return cc_cipher_process(req, DRV_CRYPTO_DIRECTION_ENCRYPT);
99763ee04c8SGilad Ben-Yossef }
99863ee04c8SGilad Ben-Yossef
cc_cipher_decrypt(struct skcipher_request * req)99963ee04c8SGilad Ben-Yossef static int cc_cipher_decrypt(struct skcipher_request *req)
100063ee04c8SGilad Ben-Yossef {
100163ee04c8SGilad Ben-Yossef struct cipher_req_ctx *req_ctx = skcipher_request_ctx(req);
100263ee04c8SGilad Ben-Yossef
1003e30368f3SGilad Ben-Yossef memset(req_ctx, 0, sizeof(*req_ctx));
1004e30368f3SGilad Ben-Yossef
100563ee04c8SGilad Ben-Yossef return cc_cipher_process(req, DRV_CRYPTO_DIRECTION_DECRYPT);
100663ee04c8SGilad Ben-Yossef }
100763ee04c8SGilad Ben-Yossef
100863ee04c8SGilad Ben-Yossef /* Block cipher alg */
100963ee04c8SGilad Ben-Yossef static const struct cc_alg_template skcipher_algs[] = {
101063ee04c8SGilad Ben-Yossef {
1011a794d8d8SGilad Ben-Yossef .name = "xts(paes)",
1012a794d8d8SGilad Ben-Yossef .driver_name = "xts-paes-ccree",
101367caef08SUri Shir .blocksize = 1,
1014a794d8d8SGilad Ben-Yossef .template_skcipher = {
1015a794d8d8SGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1016a794d8d8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1017a794d8d8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1018a794d8d8SGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1019a794d8d8SGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1020a794d8d8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
1021a794d8d8SGilad Ben-Yossef },
1022a794d8d8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_XTS,
1023a794d8d8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
1024a794d8d8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
10251c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
1026f98f6e21SGilad Ben-Yossef .sec_func = true,
1027a794d8d8SGilad Ben-Yossef },
1028a794d8d8SGilad Ben-Yossef {
1029520f325aSGilad Ben-Yossef .name = "essiv(cbc(paes),sha256)",
1030a794d8d8SGilad Ben-Yossef .driver_name = "essiv-paes-ccree",
1031a794d8d8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
1032a794d8d8SGilad Ben-Yossef .template_skcipher = {
1033a794d8d8SGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1034a794d8d8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1035a794d8d8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1036a794d8d8SGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1037a794d8d8SGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1038a794d8d8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
1039a794d8d8SGilad Ben-Yossef },
1040a794d8d8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_ESSIV,
1041a794d8d8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
1042a794d8d8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_712,
10431c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
1044f98f6e21SGilad Ben-Yossef .sec_func = true,
1045a794d8d8SGilad Ben-Yossef },
1046a794d8d8SGilad Ben-Yossef {
1047a794d8d8SGilad Ben-Yossef .name = "ecb(paes)",
1048a794d8d8SGilad Ben-Yossef .driver_name = "ecb-paes-ccree",
1049a794d8d8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
1050a794d8d8SGilad Ben-Yossef .template_skcipher = {
1051a794d8d8SGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1052a794d8d8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1053a794d8d8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1054a794d8d8SGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1055a794d8d8SGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1056a794d8d8SGilad Ben-Yossef .ivsize = 0,
1057a794d8d8SGilad Ben-Yossef },
1058a794d8d8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_ECB,
1059a794d8d8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
1060a794d8d8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_712,
10611c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
1062f98f6e21SGilad Ben-Yossef .sec_func = true,
1063a794d8d8SGilad Ben-Yossef },
1064a794d8d8SGilad Ben-Yossef {
1065a794d8d8SGilad Ben-Yossef .name = "cbc(paes)",
1066a794d8d8SGilad Ben-Yossef .driver_name = "cbc-paes-ccree",
1067a794d8d8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
1068a794d8d8SGilad Ben-Yossef .template_skcipher = {
1069a794d8d8SGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1070a794d8d8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1071a794d8d8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1072a794d8d8SGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1073a794d8d8SGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1074a794d8d8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
1075a794d8d8SGilad Ben-Yossef },
1076a794d8d8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CBC,
1077a794d8d8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
1078a794d8d8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_712,
10791c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
1080f98f6e21SGilad Ben-Yossef .sec_func = true,
1081a794d8d8SGilad Ben-Yossef },
1082a794d8d8SGilad Ben-Yossef {
1083a794d8d8SGilad Ben-Yossef .name = "ofb(paes)",
1084a794d8d8SGilad Ben-Yossef .driver_name = "ofb-paes-ccree",
1085a794d8d8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
1086a794d8d8SGilad Ben-Yossef .template_skcipher = {
1087a794d8d8SGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1088a794d8d8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1089a794d8d8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1090a794d8d8SGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1091a794d8d8SGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1092a794d8d8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
1093a794d8d8SGilad Ben-Yossef },
1094a794d8d8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_OFB,
1095a794d8d8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
1096a794d8d8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_712,
10971c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
1098f98f6e21SGilad Ben-Yossef .sec_func = true,
1099a794d8d8SGilad Ben-Yossef },
1100a794d8d8SGilad Ben-Yossef {
110184f366daSGilad Ben-Yossef .name = "cts(cbc(paes))",
110284f366daSGilad Ben-Yossef .driver_name = "cts-cbc-paes-ccree",
1103a794d8d8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
1104a794d8d8SGilad Ben-Yossef .template_skcipher = {
1105a794d8d8SGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1106a794d8d8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1107a794d8d8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1108a794d8d8SGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1109a794d8d8SGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1110a794d8d8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
1111a794d8d8SGilad Ben-Yossef },
1112a794d8d8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CBC_CTS,
1113a794d8d8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
1114a794d8d8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_712,
11151c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
1116f98f6e21SGilad Ben-Yossef .sec_func = true,
1117a794d8d8SGilad Ben-Yossef },
1118a794d8d8SGilad Ben-Yossef {
1119a794d8d8SGilad Ben-Yossef .name = "ctr(paes)",
1120a794d8d8SGilad Ben-Yossef .driver_name = "ctr-paes-ccree",
1121a794d8d8SGilad Ben-Yossef .blocksize = 1,
1122a794d8d8SGilad Ben-Yossef .template_skcipher = {
1123a794d8d8SGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1124a794d8d8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1125a794d8d8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1126a794d8d8SGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1127a794d8d8SGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1128a794d8d8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
1129a794d8d8SGilad Ben-Yossef },
1130a794d8d8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CTR,
1131a794d8d8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
1132a794d8d8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_712,
11331c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
1134f98f6e21SGilad Ben-Yossef .sec_func = true,
1135a794d8d8SGilad Ben-Yossef },
1136a794d8d8SGilad Ben-Yossef {
11374aaefb62SGilad Ben-Yossef /* See https://www.mail-archive.com/linux-crypto@vger.kernel.org/msg40576.html
11384aaefb62SGilad Ben-Yossef * for the reason why this differs from the generic
11394aaefb62SGilad Ben-Yossef * implementation.
11404aaefb62SGilad Ben-Yossef */
114163ee04c8SGilad Ben-Yossef .name = "xts(aes)",
114263ee04c8SGilad Ben-Yossef .driver_name = "xts-aes-ccree",
114367caef08SUri Shir .blocksize = 1,
114463ee04c8SGilad Ben-Yossef .template_skcipher = {
114563ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
114663ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
114763ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
114863ee04c8SGilad Ben-Yossef .min_keysize = AES_MIN_KEY_SIZE * 2,
114963ee04c8SGilad Ben-Yossef .max_keysize = AES_MAX_KEY_SIZE * 2,
115063ee04c8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
115163ee04c8SGilad Ben-Yossef },
115263ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_XTS,
115363ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
115427b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
11551c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
115663ee04c8SGilad Ben-Yossef },
115763ee04c8SGilad Ben-Yossef {
1158520f325aSGilad Ben-Yossef .name = "essiv(cbc(aes),sha256)",
115963ee04c8SGilad Ben-Yossef .driver_name = "essiv-aes-ccree",
116063ee04c8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
116163ee04c8SGilad Ben-Yossef .template_skcipher = {
116263ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
116363ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
116463ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1165520f325aSGilad Ben-Yossef .min_keysize = AES_MIN_KEY_SIZE,
1166520f325aSGilad Ben-Yossef .max_keysize = AES_MAX_KEY_SIZE,
116763ee04c8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
116863ee04c8SGilad Ben-Yossef },
116963ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_ESSIV,
117063ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
117127b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_712,
11721c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
117363ee04c8SGilad Ben-Yossef },
117463ee04c8SGilad Ben-Yossef {
117563ee04c8SGilad Ben-Yossef .name = "ecb(aes)",
117663ee04c8SGilad Ben-Yossef .driver_name = "ecb-aes-ccree",
117763ee04c8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
117863ee04c8SGilad Ben-Yossef .template_skcipher = {
117963ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
118063ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
118163ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
118263ee04c8SGilad Ben-Yossef .min_keysize = AES_MIN_KEY_SIZE,
118363ee04c8SGilad Ben-Yossef .max_keysize = AES_MAX_KEY_SIZE,
118463ee04c8SGilad Ben-Yossef .ivsize = 0,
118563ee04c8SGilad Ben-Yossef },
118663ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_ECB,
118763ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
118827b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
11891c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
119063ee04c8SGilad Ben-Yossef },
119163ee04c8SGilad Ben-Yossef {
119263ee04c8SGilad Ben-Yossef .name = "cbc(aes)",
119363ee04c8SGilad Ben-Yossef .driver_name = "cbc-aes-ccree",
119463ee04c8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
119563ee04c8SGilad Ben-Yossef .template_skcipher = {
119663ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
119763ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
119863ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
119963ee04c8SGilad Ben-Yossef .min_keysize = AES_MIN_KEY_SIZE,
120063ee04c8SGilad Ben-Yossef .max_keysize = AES_MAX_KEY_SIZE,
120163ee04c8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
120263ee04c8SGilad Ben-Yossef },
120363ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CBC,
120463ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
120527b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
12061c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
120763ee04c8SGilad Ben-Yossef },
120863ee04c8SGilad Ben-Yossef {
120963ee04c8SGilad Ben-Yossef .name = "ofb(aes)",
121063ee04c8SGilad Ben-Yossef .driver_name = "ofb-aes-ccree",
12114aaefb62SGilad Ben-Yossef .blocksize = 1,
121263ee04c8SGilad Ben-Yossef .template_skcipher = {
121363ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
121463ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
121563ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
121663ee04c8SGilad Ben-Yossef .min_keysize = AES_MIN_KEY_SIZE,
121763ee04c8SGilad Ben-Yossef .max_keysize = AES_MAX_KEY_SIZE,
121863ee04c8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
121963ee04c8SGilad Ben-Yossef },
122063ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_OFB,
122163ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
122227b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
12231c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
122463ee04c8SGilad Ben-Yossef },
122563ee04c8SGilad Ben-Yossef {
122684f366daSGilad Ben-Yossef .name = "cts(cbc(aes))",
122784f366daSGilad Ben-Yossef .driver_name = "cts-cbc-aes-ccree",
122863ee04c8SGilad Ben-Yossef .blocksize = AES_BLOCK_SIZE,
122963ee04c8SGilad Ben-Yossef .template_skcipher = {
123063ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
123163ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
123263ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
123363ee04c8SGilad Ben-Yossef .min_keysize = AES_MIN_KEY_SIZE,
123463ee04c8SGilad Ben-Yossef .max_keysize = AES_MAX_KEY_SIZE,
123563ee04c8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
123663ee04c8SGilad Ben-Yossef },
123763ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CBC_CTS,
123863ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
123927b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
12401c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
124163ee04c8SGilad Ben-Yossef },
124263ee04c8SGilad Ben-Yossef {
124363ee04c8SGilad Ben-Yossef .name = "ctr(aes)",
124463ee04c8SGilad Ben-Yossef .driver_name = "ctr-aes-ccree",
124563ee04c8SGilad Ben-Yossef .blocksize = 1,
124663ee04c8SGilad Ben-Yossef .template_skcipher = {
124763ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
124863ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
124963ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
125063ee04c8SGilad Ben-Yossef .min_keysize = AES_MIN_KEY_SIZE,
125163ee04c8SGilad Ben-Yossef .max_keysize = AES_MAX_KEY_SIZE,
125263ee04c8SGilad Ben-Yossef .ivsize = AES_BLOCK_SIZE,
125363ee04c8SGilad Ben-Yossef },
125463ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CTR,
125563ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_AES,
125627b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
12571c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
125863ee04c8SGilad Ben-Yossef },
125963ee04c8SGilad Ben-Yossef {
126063ee04c8SGilad Ben-Yossef .name = "cbc(des3_ede)",
126163ee04c8SGilad Ben-Yossef .driver_name = "cbc-3des-ccree",
126263ee04c8SGilad Ben-Yossef .blocksize = DES3_EDE_BLOCK_SIZE,
126363ee04c8SGilad Ben-Yossef .template_skcipher = {
126463ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
126563ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
126663ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
126763ee04c8SGilad Ben-Yossef .min_keysize = DES3_EDE_KEY_SIZE,
126863ee04c8SGilad Ben-Yossef .max_keysize = DES3_EDE_KEY_SIZE,
126963ee04c8SGilad Ben-Yossef .ivsize = DES3_EDE_BLOCK_SIZE,
127063ee04c8SGilad Ben-Yossef },
127163ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CBC,
127263ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_DES,
127327b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
12741c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
127563ee04c8SGilad Ben-Yossef },
127663ee04c8SGilad Ben-Yossef {
127763ee04c8SGilad Ben-Yossef .name = "ecb(des3_ede)",
127863ee04c8SGilad Ben-Yossef .driver_name = "ecb-3des-ccree",
127963ee04c8SGilad Ben-Yossef .blocksize = DES3_EDE_BLOCK_SIZE,
128063ee04c8SGilad Ben-Yossef .template_skcipher = {
128163ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
128263ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
128363ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
128463ee04c8SGilad Ben-Yossef .min_keysize = DES3_EDE_KEY_SIZE,
128563ee04c8SGilad Ben-Yossef .max_keysize = DES3_EDE_KEY_SIZE,
128663ee04c8SGilad Ben-Yossef .ivsize = 0,
128763ee04c8SGilad Ben-Yossef },
128863ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_ECB,
128963ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_DES,
129027b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
12911c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
129263ee04c8SGilad Ben-Yossef },
129363ee04c8SGilad Ben-Yossef {
129463ee04c8SGilad Ben-Yossef .name = "cbc(des)",
129563ee04c8SGilad Ben-Yossef .driver_name = "cbc-des-ccree",
129663ee04c8SGilad Ben-Yossef .blocksize = DES_BLOCK_SIZE,
129763ee04c8SGilad Ben-Yossef .template_skcipher = {
129863ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
129963ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
130063ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
130163ee04c8SGilad Ben-Yossef .min_keysize = DES_KEY_SIZE,
130263ee04c8SGilad Ben-Yossef .max_keysize = DES_KEY_SIZE,
130363ee04c8SGilad Ben-Yossef .ivsize = DES_BLOCK_SIZE,
130463ee04c8SGilad Ben-Yossef },
130563ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CBC,
130663ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_DES,
130727b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
13081c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
130963ee04c8SGilad Ben-Yossef },
131063ee04c8SGilad Ben-Yossef {
131163ee04c8SGilad Ben-Yossef .name = "ecb(des)",
131263ee04c8SGilad Ben-Yossef .driver_name = "ecb-des-ccree",
131363ee04c8SGilad Ben-Yossef .blocksize = DES_BLOCK_SIZE,
131463ee04c8SGilad Ben-Yossef .template_skcipher = {
131563ee04c8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
131663ee04c8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
131763ee04c8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
131863ee04c8SGilad Ben-Yossef .min_keysize = DES_KEY_SIZE,
131963ee04c8SGilad Ben-Yossef .max_keysize = DES_KEY_SIZE,
132063ee04c8SGilad Ben-Yossef .ivsize = 0,
132163ee04c8SGilad Ben-Yossef },
132263ee04c8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_ECB,
132363ee04c8SGilad Ben-Yossef .flow_mode = S_DIN_to_DES,
132427b3b22dSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_630,
13251c876a90SGilad Ben-Yossef .std_body = CC_STD_NIST,
132663ee04c8SGilad Ben-Yossef },
13279b8d51f8SGilad Ben-Yossef {
13289b8d51f8SGilad Ben-Yossef .name = "cbc(sm4)",
13299b8d51f8SGilad Ben-Yossef .driver_name = "cbc-sm4-ccree",
13309b8d51f8SGilad Ben-Yossef .blocksize = SM4_BLOCK_SIZE,
13319b8d51f8SGilad Ben-Yossef .template_skcipher = {
13329b8d51f8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
13339b8d51f8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
13349b8d51f8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
13359b8d51f8SGilad Ben-Yossef .min_keysize = SM4_KEY_SIZE,
13369b8d51f8SGilad Ben-Yossef .max_keysize = SM4_KEY_SIZE,
13379b8d51f8SGilad Ben-Yossef .ivsize = SM4_BLOCK_SIZE,
13389b8d51f8SGilad Ben-Yossef },
13399b8d51f8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CBC,
13409b8d51f8SGilad Ben-Yossef .flow_mode = S_DIN_to_SM4,
13419b8d51f8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_713,
13421c876a90SGilad Ben-Yossef .std_body = CC_STD_OSCCA,
13439b8d51f8SGilad Ben-Yossef },
13449b8d51f8SGilad Ben-Yossef {
13459b8d51f8SGilad Ben-Yossef .name = "ecb(sm4)",
13469b8d51f8SGilad Ben-Yossef .driver_name = "ecb-sm4-ccree",
13479b8d51f8SGilad Ben-Yossef .blocksize = SM4_BLOCK_SIZE,
13489b8d51f8SGilad Ben-Yossef .template_skcipher = {
13499b8d51f8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
13509b8d51f8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
13519b8d51f8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
13529b8d51f8SGilad Ben-Yossef .min_keysize = SM4_KEY_SIZE,
13539b8d51f8SGilad Ben-Yossef .max_keysize = SM4_KEY_SIZE,
13549b8d51f8SGilad Ben-Yossef .ivsize = 0,
13559b8d51f8SGilad Ben-Yossef },
13569b8d51f8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_ECB,
13579b8d51f8SGilad Ben-Yossef .flow_mode = S_DIN_to_SM4,
13589b8d51f8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_713,
13591c876a90SGilad Ben-Yossef .std_body = CC_STD_OSCCA,
13609b8d51f8SGilad Ben-Yossef },
13619b8d51f8SGilad Ben-Yossef {
13629b8d51f8SGilad Ben-Yossef .name = "ctr(sm4)",
13639b8d51f8SGilad Ben-Yossef .driver_name = "ctr-sm4-ccree",
13644aaefb62SGilad Ben-Yossef .blocksize = 1,
13659b8d51f8SGilad Ben-Yossef .template_skcipher = {
13669b8d51f8SGilad Ben-Yossef .setkey = cc_cipher_setkey,
13679b8d51f8SGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
13689b8d51f8SGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
13699b8d51f8SGilad Ben-Yossef .min_keysize = SM4_KEY_SIZE,
13709b8d51f8SGilad Ben-Yossef .max_keysize = SM4_KEY_SIZE,
13719b8d51f8SGilad Ben-Yossef .ivsize = SM4_BLOCK_SIZE,
13729b8d51f8SGilad Ben-Yossef },
13739b8d51f8SGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CTR,
13749b8d51f8SGilad Ben-Yossef .flow_mode = S_DIN_to_SM4,
13759b8d51f8SGilad Ben-Yossef .min_hw_rev = CC_HW_REV_713,
13761c876a90SGilad Ben-Yossef .std_body = CC_STD_OSCCA,
13779b8d51f8SGilad Ben-Yossef },
1378bee711faSGilad Ben-Yossef {
1379bee711faSGilad Ben-Yossef .name = "cbc(psm4)",
1380bee711faSGilad Ben-Yossef .driver_name = "cbc-psm4-ccree",
1381bee711faSGilad Ben-Yossef .blocksize = SM4_BLOCK_SIZE,
1382bee711faSGilad Ben-Yossef .template_skcipher = {
1383bee711faSGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1384bee711faSGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1385bee711faSGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1386bee711faSGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1387bee711faSGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1388bee711faSGilad Ben-Yossef .ivsize = SM4_BLOCK_SIZE,
1389bee711faSGilad Ben-Yossef },
1390bee711faSGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CBC,
1391bee711faSGilad Ben-Yossef .flow_mode = S_DIN_to_SM4,
1392bee711faSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_713,
1393bee711faSGilad Ben-Yossef .std_body = CC_STD_OSCCA,
1394bee711faSGilad Ben-Yossef .sec_func = true,
1395bee711faSGilad Ben-Yossef },
1396bee711faSGilad Ben-Yossef {
1397bee711faSGilad Ben-Yossef .name = "ctr(psm4)",
1398bee711faSGilad Ben-Yossef .driver_name = "ctr-psm4-ccree",
1399bee711faSGilad Ben-Yossef .blocksize = SM4_BLOCK_SIZE,
1400bee711faSGilad Ben-Yossef .template_skcipher = {
1401bee711faSGilad Ben-Yossef .setkey = cc_cipher_sethkey,
1402bee711faSGilad Ben-Yossef .encrypt = cc_cipher_encrypt,
1403bee711faSGilad Ben-Yossef .decrypt = cc_cipher_decrypt,
1404bee711faSGilad Ben-Yossef .min_keysize = CC_HW_KEY_SIZE,
1405bee711faSGilad Ben-Yossef .max_keysize = CC_HW_KEY_SIZE,
1406bee711faSGilad Ben-Yossef .ivsize = SM4_BLOCK_SIZE,
1407bee711faSGilad Ben-Yossef },
1408bee711faSGilad Ben-Yossef .cipher_mode = DRV_CIPHER_CTR,
1409bee711faSGilad Ben-Yossef .flow_mode = S_DIN_to_SM4,
1410bee711faSGilad Ben-Yossef .min_hw_rev = CC_HW_REV_713,
1411bee711faSGilad Ben-Yossef .std_body = CC_STD_OSCCA,
1412bee711faSGilad Ben-Yossef .sec_func = true,
1413bee711faSGilad Ben-Yossef },
141463ee04c8SGilad Ben-Yossef };
141563ee04c8SGilad Ben-Yossef
cc_create_alg(const struct cc_alg_template * tmpl,struct device * dev)141663ee04c8SGilad Ben-Yossef static struct cc_crypto_alg *cc_create_alg(const struct cc_alg_template *tmpl,
141763ee04c8SGilad Ben-Yossef struct device *dev)
141863ee04c8SGilad Ben-Yossef {
141963ee04c8SGilad Ben-Yossef struct cc_crypto_alg *t_alg;
142063ee04c8SGilad Ben-Yossef struct skcipher_alg *alg;
142163ee04c8SGilad Ben-Yossef
1422f7c8f992SGeert Uytterhoeven t_alg = devm_kzalloc(dev, sizeof(*t_alg), GFP_KERNEL);
142363ee04c8SGilad Ben-Yossef if (!t_alg)
142463ee04c8SGilad Ben-Yossef return ERR_PTR(-ENOMEM);
142563ee04c8SGilad Ben-Yossef
142663ee04c8SGilad Ben-Yossef alg = &t_alg->skcipher_alg;
142763ee04c8SGilad Ben-Yossef
142863ee04c8SGilad Ben-Yossef memcpy(alg, &tmpl->template_skcipher, sizeof(*alg));
142963ee04c8SGilad Ben-Yossef
143063ee04c8SGilad Ben-Yossef snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name);
143163ee04c8SGilad Ben-Yossef snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
143263ee04c8SGilad Ben-Yossef tmpl->driver_name);
143363ee04c8SGilad Ben-Yossef alg->base.cra_module = THIS_MODULE;
143463ee04c8SGilad Ben-Yossef alg->base.cra_priority = CC_CRA_PRIO;
143563ee04c8SGilad Ben-Yossef alg->base.cra_blocksize = tmpl->blocksize;
143663ee04c8SGilad Ben-Yossef alg->base.cra_alignmask = 0;
143763ee04c8SGilad Ben-Yossef alg->base.cra_ctxsize = sizeof(struct cc_cipher_ctx);
143863ee04c8SGilad Ben-Yossef
143963ee04c8SGilad Ben-Yossef alg->base.cra_init = cc_cipher_init;
144063ee04c8SGilad Ben-Yossef alg->base.cra_exit = cc_cipher_exit;
14412c95e6d9SEric Biggers alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY;
144263ee04c8SGilad Ben-Yossef
144363ee04c8SGilad Ben-Yossef t_alg->cipher_mode = tmpl->cipher_mode;
144463ee04c8SGilad Ben-Yossef t_alg->flow_mode = tmpl->flow_mode;
144563ee04c8SGilad Ben-Yossef
144663ee04c8SGilad Ben-Yossef return t_alg;
144763ee04c8SGilad Ben-Yossef }
144863ee04c8SGilad Ben-Yossef
cc_cipher_free(struct cc_drvdata * drvdata)144963ee04c8SGilad Ben-Yossef int cc_cipher_free(struct cc_drvdata *drvdata)
145063ee04c8SGilad Ben-Yossef {
145163ee04c8SGilad Ben-Yossef struct cc_crypto_alg *t_alg, *n;
145263ee04c8SGilad Ben-Yossef
145363ee04c8SGilad Ben-Yossef /* Remove registered algs */
1454c23d7997SGeert Uytterhoeven list_for_each_entry_safe(t_alg, n, &drvdata->alg_list, entry) {
145563ee04c8SGilad Ben-Yossef crypto_unregister_skcipher(&t_alg->skcipher_alg);
145663ee04c8SGilad Ben-Yossef list_del(&t_alg->entry);
145763ee04c8SGilad Ben-Yossef }
145863ee04c8SGilad Ben-Yossef return 0;
145963ee04c8SGilad Ben-Yossef }
146063ee04c8SGilad Ben-Yossef
cc_cipher_alloc(struct cc_drvdata * drvdata)146163ee04c8SGilad Ben-Yossef int cc_cipher_alloc(struct cc_drvdata *drvdata)
146263ee04c8SGilad Ben-Yossef {
146363ee04c8SGilad Ben-Yossef struct cc_crypto_alg *t_alg;
146463ee04c8SGilad Ben-Yossef struct device *dev = drvdata_to_dev(drvdata);
146563ee04c8SGilad Ben-Yossef int rc = -ENOMEM;
146663ee04c8SGilad Ben-Yossef int alg;
146763ee04c8SGilad Ben-Yossef
1468c23d7997SGeert Uytterhoeven INIT_LIST_HEAD(&drvdata->alg_list);
146963ee04c8SGilad Ben-Yossef
147063ee04c8SGilad Ben-Yossef /* Linux crypto */
147163ee04c8SGilad Ben-Yossef dev_dbg(dev, "Number of algorithms = %zu\n",
147263ee04c8SGilad Ben-Yossef ARRAY_SIZE(skcipher_algs));
147363ee04c8SGilad Ben-Yossef for (alg = 0; alg < ARRAY_SIZE(skcipher_algs); alg++) {
14741c876a90SGilad Ben-Yossef if ((skcipher_algs[alg].min_hw_rev > drvdata->hw_rev) ||
1475f98f6e21SGilad Ben-Yossef !(drvdata->std_bodies & skcipher_algs[alg].std_body) ||
1476f98f6e21SGilad Ben-Yossef (drvdata->sec_disabled && skcipher_algs[alg].sec_func))
147727b3b22dSGilad Ben-Yossef continue;
147827b3b22dSGilad Ben-Yossef
147963ee04c8SGilad Ben-Yossef dev_dbg(dev, "creating %s\n", skcipher_algs[alg].driver_name);
148063ee04c8SGilad Ben-Yossef t_alg = cc_create_alg(&skcipher_algs[alg], dev);
148163ee04c8SGilad Ben-Yossef if (IS_ERR(t_alg)) {
148263ee04c8SGilad Ben-Yossef rc = PTR_ERR(t_alg);
148363ee04c8SGilad Ben-Yossef dev_err(dev, "%s alg allocation failed\n",
148463ee04c8SGilad Ben-Yossef skcipher_algs[alg].driver_name);
148563ee04c8SGilad Ben-Yossef goto fail0;
148663ee04c8SGilad Ben-Yossef }
148763ee04c8SGilad Ben-Yossef t_alg->drvdata = drvdata;
148863ee04c8SGilad Ben-Yossef
148963ee04c8SGilad Ben-Yossef dev_dbg(dev, "registering %s\n",
149063ee04c8SGilad Ben-Yossef skcipher_algs[alg].driver_name);
149163ee04c8SGilad Ben-Yossef rc = crypto_register_skcipher(&t_alg->skcipher_alg);
149263ee04c8SGilad Ben-Yossef dev_dbg(dev, "%s alg registration rc = %x\n",
149363ee04c8SGilad Ben-Yossef t_alg->skcipher_alg.base.cra_driver_name, rc);
149463ee04c8SGilad Ben-Yossef if (rc) {
149563ee04c8SGilad Ben-Yossef dev_err(dev, "%s alg registration failed\n",
149663ee04c8SGilad Ben-Yossef t_alg->skcipher_alg.base.cra_driver_name);
149763ee04c8SGilad Ben-Yossef goto fail0;
1498ff4d719aSGeert Uytterhoeven }
1499ff4d719aSGeert Uytterhoeven
1500c23d7997SGeert Uytterhoeven list_add_tail(&t_alg->entry, &drvdata->alg_list);
150163ee04c8SGilad Ben-Yossef dev_dbg(dev, "Registered %s\n",
150263ee04c8SGilad Ben-Yossef t_alg->skcipher_alg.base.cra_driver_name);
150363ee04c8SGilad Ben-Yossef }
150463ee04c8SGilad Ben-Yossef return 0;
150563ee04c8SGilad Ben-Yossef
150663ee04c8SGilad Ben-Yossef fail0:
150763ee04c8SGilad Ben-Yossef cc_cipher_free(drvdata);
150863ee04c8SGilad Ben-Yossef return rc;
150963ee04c8SGilad Ben-Yossef }
1510