lkml.org 
[lkml]   [2020]   [Nov]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4/5] crypto: hisilicon/sec - add new AEAD mode for SEC
Date
Add new AEAD algorithms to SEC:
CCM(AES), GCM(AES), CCM(SM4), GCM(SM4).

Signed-off-by: Longfang Liu <liulongfang@huawei.com>
---
drivers/crypto/hisilicon/sec2/sec.h | 4 +
drivers/crypto/hisilicon/sec2/sec_crypto.c | 384 ++++++++++++++++++++++++-----
drivers/crypto/hisilicon/sec2/sec_crypto.h | 5 +
3 files changed, 330 insertions(+), 63 deletions(-)

diff --git a/drivers/crypto/hisilicon/sec2/sec.h b/drivers/crypto/hisilicon/sec2/sec.h
index 7c40f8a..74f7eeb 100644
--- a/drivers/crypto/hisilicon/sec2/sec.h
+++ b/drivers/crypto/hisilicon/sec2/sec.h
@@ -15,6 +15,8 @@ struct sec_alg_res {
dma_addr_t pbuf_dma;
u8 *c_ivin;
dma_addr_t c_ivin_dma;
+ u8 *a_ivin;
+ dma_addr_t a_ivin_dma;
u8 *out_mac;
dma_addr_t out_mac_dma;
};
@@ -35,6 +37,8 @@ struct sec_cipher_req {
struct sec_aead_req {
u8 *out_mac;
dma_addr_t out_mac_dma;
+ u8 *a_ivin;
+ dma_addr_t a_ivin_dma;
struct aead_request *aead_req;
};

diff --git a/drivers/crypto/hisilicon/sec2/sec_crypto.c b/drivers/crypto/hisilicon/sec2/sec_crypto.c
index b0ab4cc..36b5823 100644
--- a/drivers/crypto/hisilicon/sec2/sec_crypto.c
+++ b/drivers/crypto/hisilicon/sec2/sec_crypto.c
@@ -81,6 +81,19 @@
#define SEC_SQE_CFLAG 2
#define SEC_SQE_AEAD_FLAG 3
#define SEC_SQE_DONE 0x1
+#define MIN_MAC_LEN 4
+#define MAC_LEN_MASK 0x1U
+#define MAX_INPUT_DATA_LEN 0xFFFE00
+
+#define IV_CM_CAL_NUM 2
+#define IV_CL_MASK 0x7
+#define IV_FLAGS_OFFSET 0x6
+#define IV_CM_OFFSET 0x3
+#define IV_LAST_BYTE1 1
+#define IV_LAST_BYTE2 2
+#define IV_LAST_BYTE2_MASK 0xFF00
+#define IV_LAST_BYTE1_MASK 0xFF
+#define IV_CTR_INIT 1

/* Get an en/de-cipher queue cyclically to balance load over queues of TFM */
static inline int sec_alloc_queue_id(struct sec_ctx *ctx, struct sec_req *req)
@@ -229,7 +242,9 @@ static void sec_req_cb(struct hisi_qp *qp, void *resp)
atomic64_inc(&dfx->done_flag_cnt);
}

- if (ctx->alg_type == SEC_AEAD && !req->c_req.encrypt)
+ if (ctx->alg_type == SEC_AEAD && !req->c_req.encrypt
+ && ctx->c_ctx.c_mode != SEC_CMODE_CCM
+ && ctx->c_ctx.c_mode != SEC_CMODE_GCM)
err = sec_aead_verify(req);

atomic64_inc(&dfx->recv_cnt);
@@ -298,6 +313,30 @@ static void sec_free_civ_resource(struct device *dev, struct sec_alg_res *res)
res->c_ivin, res->c_ivin_dma);
}

+static int sec_alloc_aiv_resource(struct device *dev, struct sec_alg_res *res)
+{
+ int i;
+
+ res->a_ivin = dma_alloc_coherent(dev, SEC_TOTAL_IV_SZ,
+ &res->a_ivin_dma, GFP_KERNEL);
+ if (!res->a_ivin)
+ return -ENOMEM;
+
+ for (i = 1; i < QM_Q_DEPTH; i++) {
+ res[i].a_ivin_dma = res->a_ivin_dma + i * SEC_IV_SIZE;
+ res[i].a_ivin = res->a_ivin + i * SEC_IV_SIZE;
+ }
+
+ return 0;
+}
+
+static void sec_free_aiv_resource(struct device *dev, struct sec_alg_res *res)
+{
+ if (res->a_ivin)
+ dma_free_coherent(dev, SEC_TOTAL_IV_SZ,
+ res->a_ivin, res->a_ivin_dma);
+}
+
static int sec_alloc_mac_resource(struct device *dev, struct sec_alg_res *res)
{
int i;
@@ -380,9 +419,13 @@ static int sec_alg_resource_alloc(struct sec_ctx *ctx,
return ret;

if (ctx->alg_type == SEC_AEAD) {
+ ret = sec_alloc_aiv_resource(dev, res);
+ if (ret)
+ goto alloc_aiv_fail;
+
ret = sec_alloc_mac_resource(dev, res);
if (ret)
- goto alloc_fail;
+ goto alloc_mac_fail;
}
if (ctx->pbuf_supported) {
ret = sec_alloc_pbuf_resource(dev, res);
@@ -397,7 +440,10 @@ static int sec_alg_resource_alloc(struct sec_ctx *ctx,
alloc_pbuf_fail:
if (ctx->alg_type == SEC_AEAD)
sec_free_mac_resource(dev, qp_ctx->res);
-alloc_fail:
+alloc_mac_fail:
+ if (ctx->alg_type == SEC_AEAD)
+ sec_free_aiv_resource(dev, res);
+alloc_aiv_fail:
sec_free_civ_resource(dev, res);
return ret;
}
@@ -654,19 +700,25 @@ static int sec_skcipher_aes_sm4_setkey(struct sec_cipher_ctx *c_ctx,
return -EINVAL;
}
} else {
- switch (keylen) {
- case AES_KEYSIZE_128:
- c_ctx->c_key_len = SEC_CKEY_128BIT;
- break;
- case AES_KEYSIZE_192:
- c_ctx->c_key_len = SEC_CKEY_192BIT;
- break;
- case AES_KEYSIZE_256:
- c_ctx->c_key_len = SEC_CKEY_256BIT;
- break;
- default:
- pr_err("hisi_sec2: aes key error!\n");
+ if (c_ctx->c_alg == SEC_CALG_SM4 &&
+ keylen != AES_KEYSIZE_128) {
+ pr_err("hisi_sec2: sm4 key error!\n");
return -EINVAL;
+ } else {
+ switch (keylen) {
+ case AES_KEYSIZE_128:
+ c_ctx->c_key_len = SEC_CKEY_128BIT;
+ break;
+ case AES_KEYSIZE_192:
+ c_ctx->c_key_len = SEC_CKEY_192BIT;
+ break;
+ case AES_KEYSIZE_256:
+ c_ctx->c_key_len = SEC_CKEY_256BIT;
+ break;
+ default:
+ pr_err("hisi_sec2: aes key error!\n");
+ return -EINVAL;
+ }
}
}

@@ -788,6 +840,8 @@ static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req,
c_req->c_ivin = res->pbuf + SEC_PBUF_IV_OFFSET;
c_req->c_ivin_dma = res->pbuf_dma + SEC_PBUF_IV_OFFSET;
if (ctx->alg_type == SEC_AEAD) {
+ a_req->a_ivin = res->a_ivin;
+ a_req->a_ivin_dma = res->a_ivin_dma;
a_req->out_mac = res->pbuf + SEC_PBUF_MAC_OFFSET;
a_req->out_mac_dma = res->pbuf_dma +
SEC_PBUF_MAC_OFFSET;
@@ -798,6 +852,8 @@ static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req,
c_req->c_ivin = res->c_ivin;
c_req->c_ivin_dma = res->c_ivin_dma;
if (ctx->alg_type == SEC_AEAD) {
+ a_req->a_ivin = res->a_ivin;
+ a_req->a_ivin_dma = res->a_ivin_dma;
a_req->out_mac = res->out_mac;
a_req->out_mac_dma = res->out_mac_dma;
}
@@ -928,6 +984,17 @@ static int sec_aead_setkey(struct crypto_aead *tfm, const u8 *key,
ctx->a_ctx.mac_len = mac_len;
c_ctx->c_mode = c_mode;

+ if (c_mode == SEC_CMODE_CCM || c_mode == SEC_CMODE_GCM) {
+ ret = sec_skcipher_aes_sm4_setkey(c_ctx, keylen, c_mode);
+ if (ret) {
+ dev_err(SEC_CTX_DEV(ctx), "set sec aes ccm cipher key err!\n");
+ return ret;
+ }
+ memcpy(c_ctx->c_key, key, keylen);
+
+ return 0;
+ }
+
if (crypto_authenc_extractkeys(&keys, key, keylen))
goto bad_key;

@@ -956,21 +1023,6 @@ static int sec_aead_setkey(struct crypto_aead *tfm, const u8 *key,
return -EINVAL;
}

-
-#define GEN_SEC_AEAD_SETKEY_FUNC(name, aalg, calg, maclen, cmode) \
-static int sec_setkey_##name(struct crypto_aead *tfm, const u8 *key, \
- u32 keylen) \
-{ \
- return sec_aead_setkey(tfm, key, keylen, aalg, calg, maclen, cmode);\
-}
-
-GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha1, SEC_A_HMAC_SHA1,
- SEC_CALG_AES, SEC_HMAC_SHA1_MAC, SEC_CMODE_CBC)
-GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha256, SEC_A_HMAC_SHA256,
- SEC_CALG_AES, SEC_HMAC_SHA256_MAC, SEC_CMODE_CBC)
-GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha512, SEC_A_HMAC_SHA512,
- SEC_CALG_AES, SEC_HMAC_SHA512_MAC, SEC_CMODE_CBC)
-
static int sec_aead_sgl_map(struct sec_ctx *ctx, struct sec_req *req)
{
struct aead_request *aq = req->aead_req.aead_req;
@@ -1192,12 +1244,117 @@ static void sec_skcipher_callback(struct sec_ctx *ctx, struct sec_req *req,
sk_req->base.complete(&sk_req->base, err);
}

-static void sec_aead_copy_iv(struct sec_ctx *ctx, struct sec_req *req)
+
+static void set_aead_auth_iv(struct sec_ctx *ctx, struct sec_req *req)
{
struct aead_request *aead_req = req->aead_req.aead_req;
struct sec_cipher_req *c_req = &req->c_req;
+ struct sec_aead_req *a_req = &req->aead_req;
+ size_t authsize = ctx->a_ctx.mac_len;
+ u8 flage = 0;
+ u8 cm;
+
+ /* the last 3bit is L' */
+ flage |= c_req->c_ivin[0] & IV_CL_MASK;
+
+ /* the M' is bit3~bit5, the Flags is bit6 */
+ cm = (authsize - IV_CM_CAL_NUM) / IV_CM_CAL_NUM;
+ flage |= cm << IV_CM_OFFSET;
+ if (aead_req->assoclen)
+ flage |= 0x01 << IV_FLAGS_OFFSET;
+
+ memcpy(a_req->a_ivin, aead_req->iv, ctx->c_ctx.ivsize);
+ a_req->a_ivin[0] = flage;
+
+ /*
+ * the last 32bit is counter's initial number,
+ * but the nonce uses the first 16bit
+ * the tail 16bit fill with the cipher length
+ */
+ a_req->a_ivin[ctx->c_ctx.ivsize - IV_LAST_BYTE2] =
+ aead_req->cryptlen & IV_LAST_BYTE2_MASK;
+ a_req->a_ivin[ctx->c_ctx.ivsize - IV_LAST_BYTE1] =
+ aead_req->cryptlen & IV_LAST_BYTE1_MASK;
+}
+
+static void sec_aead_set_iv(struct sec_ctx *ctx, struct sec_req *req)
+{
+ struct aead_request *aead_req = req->aead_req.aead_req;
+ struct crypto_aead *tfm = crypto_aead_reqtfm(aead_req);
+ size_t authsize = crypto_aead_authsize(tfm);
+ struct sec_cipher_req *c_req = &req->c_req;
+ struct sec_aead_req *a_req = &req->aead_req;

memcpy(c_req->c_ivin, aead_req->iv, ctx->c_ctx.ivsize);
+
+ if (ctx->c_ctx.c_mode == SEC_CMODE_CCM) {
+ /*
+ * CCM 16Byte Cipher_IV: {1B_Flage,13B_IV,2B_counter},
+ * the counter must set to 0x01
+ */
+ ctx->a_ctx.mac_len = authsize;
+ c_req->c_ivin[ctx->c_ctx.ivsize - IV_LAST_BYTE2] = 0x00;
+ c_req->c_ivin[ctx->c_ctx.ivsize - IV_LAST_BYTE1] = IV_CTR_INIT;
+ /* CCM 16Byte Auth_IV: {1B_AFlage,13B_IV,2B_Ptext_length} */
+ set_aead_auth_iv(ctx, req);
+ }
+
+ /* GCM 12Byte Cipher_IV == Auth_IV */
+ if (ctx->c_ctx.c_mode == SEC_CMODE_GCM) {
+ ctx->a_ctx.mac_len = authsize;
+ memcpy(a_req->a_ivin, c_req->c_ivin, ctx->c_ctx.ivsize);
+ }
+}
+
+static void sec_auth_bd_fill_xcm(struct sec_auth_ctx *ctx, int dir,
+ struct sec_req *req, struct sec_sqe *sec_sqe)
+{
+ struct sec_aead_req *a_req = &req->aead_req;
+ struct aead_request *aq = a_req->aead_req;
+
+ /* C_ICV_Len is MAC size, 0x4 ~ 0x10 */
+ sec_sqe->type2.icvw_kmode |= cpu_to_le16((u16)ctx->mac_len);
+
+ /* mode set to CCM/GCM, don't set {A_Alg, AKey_Len, MAC_Len} */
+ sec_sqe->type2.a_key_addr = sec_sqe->type2.c_key_addr;
+ sec_sqe->type2.a_ivin_addr = cpu_to_le64(a_req->a_ivin_dma);
+ sec_sqe->type_cipher_auth |= SEC_NO_AUTH << SEC_AUTH_OFFSET;
+
+ if (dir)
+ sec_sqe->sds_sa_type &= SEC_CIPHER_AUTH;
+ else
+ sec_sqe->sds_sa_type |= SEC_AUTH_CIPHER;
+
+ sec_sqe->type2.alen_ivllen = cpu_to_le32(aq->assoclen);
+ sec_sqe->type2.auth_src_offset = cpu_to_le32(0x0);
+ sec_sqe->type2.cipher_src_offset = cpu_to_le16((u16)aq->assoclen);
+
+ sec_sqe->type2.mac_addr = cpu_to_le64(a_req->out_mac_dma);
+}
+
+static void sec_auth_bd_fill_xcm_v3(struct sec_auth_ctx *ctx, int dir,
+ struct sec_req *req, struct sec_sqe3 *sec_sqe)
+{
+ struct sec_aead_req *a_req = &req->aead_req;
+ struct aead_request *aq = a_req->aead_req;
+
+ /* C_ICV_Len is MAC size, 0x4 ~ 0x10 */
+ sec_sqe->c_icv_key |= cpu_to_le16((u16)ctx->mac_len << SEC_MAC_OFFSET_V3);
+
+ /* mode set to CCM/GCM, don't set {A_Alg, AKey_Len, MAC_Len} */
+ sec_sqe->a_key_addr = sec_sqe->c_key_addr;
+ sec_sqe->auth_ivin.a_ivin_addr = cpu_to_le64(a_req->a_ivin_dma);
+ sec_sqe->auth_mac_key = SEC_NO_AUTH;
+
+ if (dir)
+ sec_sqe->huk_iv_seq &= SEC_CIPHER_AUTH_V3;
+ else
+ sec_sqe->huk_iv_seq |= SEC_AUTH_CIPHER_V3;
+
+ sec_sqe->a_len_key = cpu_to_le32(aq->assoclen);
+ sec_sqe->auth_src_offset = cpu_to_le32(0x0);
+ sec_sqe->cipher_src_offset = cpu_to_le16((u16)aq->assoclen);
+ sec_sqe->mac_addr = cpu_to_le64(a_req->out_mac_dma);
}

static void sec_auth_bd_fill_ex(struct sec_auth_ctx *ctx, int dir,
@@ -1245,7 +1402,11 @@ static int sec_aead_bd_fill(struct sec_ctx *ctx, struct sec_req *req)
return ret;
}

- sec_auth_bd_fill_ex(auth_ctx, req->c_req.encrypt, req, sec_sqe);
+ if (ctx->c_ctx.c_mode == SEC_CMODE_CCM ||
+ ctx->c_ctx.c_mode == SEC_CMODE_GCM)
+ sec_auth_bd_fill_xcm(auth_ctx, req->c_req.encrypt, req, sec_sqe);
+ else
+ sec_auth_bd_fill_ex(auth_ctx, req->c_req.encrypt, req, sec_sqe);

return 0;
}
@@ -1295,7 +1456,13 @@ static int sec_aead_bd_fill_v3(struct sec_ctx *ctx, struct sec_req *req)
return ret;
}

- sec_auth_bd_fill_ex_v3(auth_ctx, req->c_req.encrypt, req, sec_sqe3);
+ if (ctx->c_ctx.c_mode == SEC_CMODE_CCM ||
+ ctx->c_ctx.c_mode == SEC_CMODE_GCM)
+ sec_auth_bd_fill_xcm_v3(auth_ctx, req->c_req.encrypt,
+ req, sec_sqe3);
+ else
+ sec_auth_bd_fill_ex_v3(auth_ctx, req->c_req.encrypt,
+ req, sec_sqe3);

return 0;
}
@@ -1426,7 +1593,7 @@ static const struct sec_req_op sec_skcipher_req_ops = {
static const struct sec_req_op sec_aead_req_ops = {
.buf_map = sec_aead_sgl_map,
.buf_unmap = sec_aead_sgl_unmap,
- .do_transfer = sec_aead_copy_iv,
+ .do_transfer = sec_aead_set_iv,
.bd_fill = sec_aead_bd_fill,
.bd_send = sec_bd_send,
.callback = sec_aead_callback,
@@ -1446,7 +1613,7 @@ static const struct sec_req_op sec_skcipher_req_ops_v3 = {
static const struct sec_req_op sec_aead_req_ops_v3 = {
.buf_map = sec_aead_sgl_map,
.buf_unmap = sec_aead_sgl_unmap,
- .do_transfer = sec_aead_copy_iv,
+ .do_transfer = sec_aead_set_iv,
.bd_fill = sec_aead_bd_fill_v3,
.bd_send = sec_bd_send,
.callback = sec_aead_callback,
@@ -1486,8 +1653,9 @@ static int sec_aead_init(struct crypto_aead *tfm)
crypto_aead_set_reqsize(tfm, sizeof(struct sec_req));
ctx->alg_type = SEC_AEAD;
ctx->c_ctx.ivsize = crypto_aead_ivsize(tfm);
- if (ctx->c_ctx.ivsize > SEC_IV_SIZE) {
- dev_err(SEC_CTX_DEV(ctx), "get error aead iv size!\n");
+ if (ctx->c_ctx.ivsize < SEC_AIV_SIZE ||
+ ctx->c_ctx.ivsize > SEC_IV_SIZE) {
+ pr_err("get error aead iv size!\n");
return -EINVAL;
}

@@ -1574,13 +1742,24 @@ static int sec_aead_sha512_ctx_init(struct crypto_aead *tfm)
return sec_aead_ctx_init(tfm, "sha512");
}

+static int sec_aead_ccm_ctx_init(struct crypto_aead *tfm)
+{
+ return sec_aead_init(tfm);
+}
+
+static int sec_aead_gcm_ctx_init(struct crypto_aead *tfm)
+{
+ return sec_aead_init(tfm);
+}
+
static int sec_skcipher_param_check(struct sec_ctx *ctx, struct sec_req *sreq)
{
struct skcipher_request *sk_req = sreq->c_req.sk_req;
struct device *dev = SEC_CTX_DEV(ctx);
u8 c_alg = ctx->c_ctx.c_alg;

- if (unlikely(!sk_req->src || !sk_req->dst)) {
+ if (unlikely(!sk_req->src || !sk_req->dst ||
+ sk_req->cryptlen > MAX_INPUT_DATA_LEN)) {
dev_err(dev, "skcipher input param error!\n");
return -EINVAL;
}
@@ -1742,40 +1921,66 @@ static struct skcipher_alg sec_skciphers_v3[] = {
AES_BLOCK_SIZE, AES_BLOCK_SIZE)
};

-static int sec_aead_param_check(struct sec_ctx *ctx, struct sec_req *sreq)
+static int sec_aead_spec_check(struct sec_ctx *ctx, struct sec_req *sreq)
{
- u8 c_alg = ctx->c_ctx.c_alg;
struct aead_request *req = sreq->aead_req.aead_req;
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
size_t authsize = crypto_aead_authsize(tfm);
+ u8 c_mode = ctx->c_ctx.c_mode;

- if (unlikely(!req->src || !req->dst || !req->cryptlen ||
+ if (unlikely(req->cryptlen + req->assoclen > MAX_INPUT_DATA_LEN ||
req->assoclen > SEC_MAX_AAD_LEN)) {
- dev_err(SEC_CTX_DEV(ctx), "aead input param error!\n");
+ dev_err(SEC_CTX_DEV(ctx), "aead input spec error!\n");
return -EINVAL;
}

- if (ctx->pbuf_supported && (req->cryptlen + req->assoclen) <=
- SEC_PBUF_SZ)
- sreq->use_pbuf = true;
- else
- sreq->use_pbuf = false;
-
- /* Support AES only */
- if (unlikely(c_alg != SEC_CALG_AES)) {
- dev_err(SEC_CTX_DEV(ctx), "aead crypto alg error!\n");
+ if (unlikely((c_mode == SEC_CMODE_GCM && authsize < DES_BLOCK_SIZE) ||
+ (c_mode == SEC_CMODE_CCM && (authsize < MIN_MAC_LEN ||
+ authsize & MAC_LEN_MASK)))) {
+ dev_err(SEC_CTX_DEV(ctx), "aead input mac length error!\n");
return -EINVAL;
}
+
if (sreq->c_req.encrypt)
sreq->c_req.c_len = req->cryptlen;
else
sreq->c_req.c_len = req->cryptlen - authsize;

- if (unlikely(sreq->c_req.c_len & (AES_BLOCK_SIZE - 1))) {
- dev_err(SEC_CTX_DEV(ctx), "aead crypto length error!\n");
+ if (c_mode == SEC_CMODE_CBC) {
+ if (unlikely(sreq->c_req.c_len & (AES_BLOCK_SIZE - 1))) {
+ dev_err(SEC_CTX_DEV(ctx), "aead crypto length error!\n");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int sec_aead_param_check(struct sec_ctx *ctx, struct sec_req *sreq)
+{
+ struct aead_request *req = sreq->aead_req.aead_req;
+ u8 c_alg = ctx->c_ctx.c_alg;
+
+ if (unlikely(!req->src || !req->dst || !req->cryptlen)) {
+ dev_err(SEC_CTX_DEV(ctx), "aead input param error!\n");
return -EINVAL;
}

+ /* Support AES or SM4 */
+ if (unlikely(c_alg != SEC_CALG_AES && c_alg != SEC_CALG_SM4)) {
+ dev_err(SEC_CTX_DEV(ctx), "aead crypto alg error!\n");
+ return -EINVAL;
+ }
+
+ if (unlikely(sec_aead_spec_check(ctx, sreq)))
+ return -EINVAL;
+
+ if (ctx->pbuf_supported && (req->cryptlen + req->assoclen) <=
+ SEC_PBUF_SZ)
+ sreq->use_pbuf = true;
+ else
+ sreq->use_pbuf = false;
+
return 0;
}

@@ -1808,14 +2013,38 @@ static int sec_aead_decrypt(struct aead_request *a_req)
return sec_aead_crypto(a_req, false);
}

-#define SEC_AEAD_GEN_ALG(sec_cra_name, sec_set_key, ctx_init,\
- ctx_exit, blk_size, iv_size, max_authsize)\
+#define GEN_SEC_AEAD_SETKEY_FUNC(name, aalg, calg, maclen, cmode) \
+static int sec_setkey_##name(struct crypto_aead *tfm, const u8 *key, \
+ u32 keylen) \
+{ \
+ return sec_aead_setkey(tfm, key, keylen, aalg, calg, maclen, cmode);\
+}
+
+GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha1, SEC_A_HMAC_SHA1,
+ SEC_CALG_AES, SEC_HMAC_SHA1_MAC, SEC_CMODE_CBC)
+GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha256, SEC_A_HMAC_SHA256,
+ SEC_CALG_AES, SEC_HMAC_SHA256_MAC, SEC_CMODE_CBC)
+GEN_SEC_AEAD_SETKEY_FUNC(aes_cbc_sha512, SEC_A_HMAC_SHA512,
+ SEC_CALG_AES, SEC_HMAC_SHA512_MAC, SEC_CMODE_CBC)
+GEN_SEC_AEAD_SETKEY_FUNC(aes_ccm, 0, SEC_CALG_AES,
+ SEC_HMAC_CCM_MAC, SEC_CMODE_CCM)
+GEN_SEC_AEAD_SETKEY_FUNC(aes_gcm, 0, SEC_CALG_AES,
+ SEC_HMAC_GCM_MAC, SEC_CMODE_GCM)
+GEN_SEC_AEAD_SETKEY_FUNC(sm4_ccm, 0, SEC_CALG_SM4,
+ SEC_HMAC_CCM_MAC, SEC_CMODE_CCM)
+GEN_SEC_AEAD_SETKEY_FUNC(sm4_gcm, 0, SEC_CALG_SM4,
+ SEC_HMAC_GCM_MAC, SEC_CMODE_GCM)
+
+#define SEC_AEAD_ALG(sec_cra_name, sec_set_key, ctx_init,\
+ ctx_exit, blk_size, iv_size, max_authsize)\
{\
.base = {\
.cra_name = sec_cra_name,\
.cra_driver_name = "hisi_sec_"sec_cra_name,\
.cra_priority = SEC_PRIORITY,\
- .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY,\
+ .cra_flags = CRYPTO_ALG_ASYNC |\
+ CRYPTO_ALG_ALLOCATES_MEMORY |\
+ CRYPTO_ALG_NEED_FALLBACK,\
.cra_blocksize = blk_size,\
.cra_ctxsize = sizeof(struct sec_ctx),\
.cra_module = THIS_MODULE,\
@@ -1829,22 +2058,39 @@ static int sec_aead_decrypt(struct aead_request *a_req)
.maxauthsize = max_authsize,\
}

-#define SEC_AEAD_ALG(algname, keyfunc, aead_init, blksize, ivsize, authsize)\
- SEC_AEAD_GEN_ALG(algname, keyfunc, aead_init,\
- sec_aead_ctx_exit, blksize, ivsize, authsize)
-
static struct aead_alg sec_aeads[] = {
SEC_AEAD_ALG("authenc(hmac(sha1),cbc(aes))",
sec_setkey_aes_cbc_sha1, sec_aead_sha1_ctx_init,
- AES_BLOCK_SIZE, AES_BLOCK_SIZE, SHA1_DIGEST_SIZE),
+ sec_aead_ctx_exit, AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE, SHA1_DIGEST_SIZE),

SEC_AEAD_ALG("authenc(hmac(sha256),cbc(aes))",
sec_setkey_aes_cbc_sha256, sec_aead_sha256_ctx_init,
- AES_BLOCK_SIZE, AES_BLOCK_SIZE, SHA256_DIGEST_SIZE),
+ sec_aead_ctx_exit, AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE, SHA256_DIGEST_SIZE),

SEC_AEAD_ALG("authenc(hmac(sha512),cbc(aes))",
sec_setkey_aes_cbc_sha512, sec_aead_sha512_ctx_init,
- AES_BLOCK_SIZE, AES_BLOCK_SIZE, SHA512_DIGEST_SIZE),
+ sec_aead_ctx_exit, AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE, SHA512_DIGEST_SIZE),
+
+ SEC_AEAD_ALG("ccm(aes)", sec_setkey_aes_ccm, sec_aead_ccm_ctx_init,
+ sec_aead_ctx_exit, AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE, AES_BLOCK_SIZE),
+
+ SEC_AEAD_ALG("gcm(aes)", sec_setkey_aes_gcm, sec_aead_gcm_ctx_init,
+ sec_aead_ctx_exit, AES_BLOCK_SIZE,
+ SEC_AIV_SIZE, AES_BLOCK_SIZE)
+};
+
+static struct aead_alg sec_aeads_v3[] = {
+ SEC_AEAD_ALG("ccm(sm4)", sec_setkey_sm4_ccm, sec_aead_ccm_ctx_init,
+ sec_aead_ctx_exit, AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE, AES_BLOCK_SIZE),
+
+ SEC_AEAD_ALG("gcm(sm4)", sec_setkey_sm4_gcm, sec_aead_gcm_ctx_init,
+ sec_aead_ctx_exit, AES_BLOCK_SIZE,
+ SEC_AIV_SIZE, AES_BLOCK_SIZE)
};

int sec_register_to_crypto(struct hisi_qm *qm)
@@ -1867,8 +2113,17 @@ int sec_register_to_crypto(struct hisi_qm *qm)
ret = crypto_register_aeads(sec_aeads, ARRAY_SIZE(sec_aeads));
if (ret)
goto reg_aead_fail;
+
+ if (qm->ver > QM_HW_V2) {
+ ret = crypto_register_aeads(sec_aeads_v3, ARRAY_SIZE(sec_aeads_v3));
+ if (ret)
+ goto reg_aead_v3_fail;
+ }
+
return ret;

+reg_aead_v3_fail:
+ crypto_unregister_aeads(sec_aeads, ARRAY_SIZE(sec_aeads));
reg_aead_fail:
if (qm->ver > QM_HW_V2)
crypto_unregister_skciphers(sec_skciphers_v3,
@@ -1881,6 +2136,9 @@ int sec_register_to_crypto(struct hisi_qm *qm)

void sec_unregister_from_crypto(struct hisi_qm *qm)
{
+ if (qm->ver > QM_HW_V2)
+ crypto_unregister_aeads(sec_aeads_v3,
+ ARRAY_SIZE(sec_aeads_v3));
crypto_unregister_aeads(sec_aeads, ARRAY_SIZE(sec_aeads));

if (qm->ver > QM_HW_V2)
diff --git a/drivers/crypto/hisilicon/sec2/sec_crypto.h b/drivers/crypto/hisilicon/sec2/sec_crypto.h
index 3c74440..6920993 100644
--- a/drivers/crypto/hisilicon/sec2/sec_crypto.h
+++ b/drivers/crypto/hisilicon/sec2/sec_crypto.h
@@ -4,6 +4,7 @@
#ifndef __HISI_SEC_V2_CRYPTO_H
#define __HISI_SEC_V2_CRYPTO_H

+#define SEC_AIV_SIZE 12
#define SEC_IV_SIZE 24
#define SEC_MAX_KEY_SIZE 64
#define SEC_COMM_SCENE 0
@@ -21,6 +22,8 @@ enum sec_hash_alg {
};

enum sec_mac_len {
+ SEC_HMAC_CCM_MAC = 16,
+ SEC_HMAC_GCM_MAC = 16,
SEC_HMAC_SHA1_MAC = 20,
SEC_HMAC_SHA256_MAC = 32,
SEC_HMAC_SHA512_MAC = 64,
@@ -32,6 +35,8 @@ enum sec_cmode {
SEC_CMODE_CFB = 0x2,
SEC_CMODE_OFB = 0x3,
SEC_CMODE_CTR = 0x4,
+ SEC_CMODE_CCM = 0x5,
+ SEC_CMODE_GCM = 0x6,
SEC_CMODE_XTS = 0x7,
};

--
2.8.1
\
 
 \ /
  Last update: 2020-11-26 03:21    [W:0.155 / U:1.572 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site