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Diffstat (limited to 'drivers/crypto/n2_core.c')
-rw-r--r--drivers/crypto/n2_core.c194
1 files changed, 96 insertions, 98 deletions
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index 40b81013213e..63bd565048f4 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -23,6 +23,7 @@
#include <linux/sched.h>
#include <crypto/internal/hash.h>
+#include <crypto/internal/skcipher.h>
#include <crypto/scatterwalk.h>
#include <crypto/algapi.h>
@@ -657,7 +658,7 @@ static int n2_hmac_async_digest(struct ahash_request *req)
ctx->hash_key_len);
}
-struct n2_cipher_context {
+struct n2_skcipher_context {
int key_len;
int enc_type;
union {
@@ -683,7 +684,7 @@ struct n2_crypto_chunk {
};
struct n2_request_context {
- struct ablkcipher_walk walk;
+ struct skcipher_walk walk;
struct list_head chunk_list;
struct n2_crypto_chunk chunk;
u8 temp_iv[16];
@@ -708,29 +709,29 @@ struct n2_request_context {
* is not a valid sequence.
*/
-struct n2_cipher_alg {
+struct n2_skcipher_alg {
struct list_head entry;
u8 enc_type;
- struct crypto_alg alg;
+ struct skcipher_alg skcipher;
};
-static inline struct n2_cipher_alg *n2_cipher_alg(struct crypto_tfm *tfm)
+static inline struct n2_skcipher_alg *n2_skcipher_alg(struct crypto_skcipher *tfm)
{
- struct crypto_alg *alg = tfm->__crt_alg;
+ struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
- return container_of(alg, struct n2_cipher_alg, alg);
+ return container_of(alg, struct n2_skcipher_alg, skcipher);
}
-struct n2_cipher_request_context {
- struct ablkcipher_walk walk;
+struct n2_skcipher_request_context {
+ struct skcipher_walk walk;
};
-static int n2_aes_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int n2_aes_setkey(struct crypto_skcipher *skcipher, const u8 *key,
unsigned int keylen)
{
- struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
- struct n2_cipher_context *ctx = crypto_tfm_ctx(tfm);
- struct n2_cipher_alg *n2alg = n2_cipher_alg(tfm);
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
+ struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm);
+ struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher);
ctx->enc_type = (n2alg->enc_type & ENC_TYPE_CHAINING_MASK);
@@ -745,7 +746,7 @@ static int n2_aes_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
ctx->enc_type |= ENC_TYPE_ALG_AES256;
break;
default:
- crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ crypto_skcipher_set_flags(skcipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
@@ -754,15 +755,15 @@ static int n2_aes_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
return 0;
}
-static int n2_des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int n2_des_setkey(struct crypto_skcipher *skcipher, const u8 *key,
unsigned int keylen)
{
- struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
- struct n2_cipher_context *ctx = crypto_tfm_ctx(tfm);
- struct n2_cipher_alg *n2alg = n2_cipher_alg(tfm);
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
+ struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm);
+ struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher);
int err;
- err = verify_ablkcipher_des_key(cipher, key);
+ err = verify_skcipher_des_key(skcipher, key);
if (err)
return err;
@@ -773,15 +774,15 @@ static int n2_des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
return 0;
}
-static int n2_3des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int n2_3des_setkey(struct crypto_skcipher *skcipher, const u8 *key,
unsigned int keylen)
{
- struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
- struct n2_cipher_context *ctx = crypto_tfm_ctx(tfm);
- struct n2_cipher_alg *n2alg = n2_cipher_alg(tfm);
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
+ struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm);
+ struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher);
int err;
- err = verify_ablkcipher_des3_key(cipher, key);
+ err = verify_skcipher_des3_key(skcipher, key);
if (err)
return err;
@@ -792,12 +793,12 @@ static int n2_3des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
return 0;
}
-static int n2_arc4_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int n2_arc4_setkey(struct crypto_skcipher *skcipher, const u8 *key,
unsigned int keylen)
{
- struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
- struct n2_cipher_context *ctx = crypto_tfm_ctx(tfm);
- struct n2_cipher_alg *n2alg = n2_cipher_alg(tfm);
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
+ struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm);
+ struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher);
u8 *s = ctx->key.arc4;
u8 *x = s + 256;
u8 *y = x + 1;
@@ -822,7 +823,7 @@ static int n2_arc4_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
return 0;
}
-static inline int cipher_descriptor_len(int nbytes, unsigned int block_size)
+static inline int skcipher_descriptor_len(int nbytes, unsigned int block_size)
{
int this_len = nbytes;
@@ -830,10 +831,11 @@ static inline int cipher_descriptor_len(int nbytes, unsigned int block_size)
return this_len > (1 << 16) ? (1 << 16) : this_len;
}
-static int __n2_crypt_chunk(struct crypto_tfm *tfm, struct n2_crypto_chunk *cp,
+static int __n2_crypt_chunk(struct crypto_skcipher *skcipher,
+ struct n2_crypto_chunk *cp,
struct spu_queue *qp, bool encrypt)
{
- struct n2_cipher_context *ctx = crypto_tfm_ctx(tfm);
+ struct n2_skcipher_context *ctx = crypto_skcipher_ctx(skcipher);
struct cwq_initial_entry *ent;
bool in_place;
int i;
@@ -877,18 +879,17 @@ static int __n2_crypt_chunk(struct crypto_tfm *tfm, struct n2_crypto_chunk *cp,
return (spu_queue_submit(qp, ent) != HV_EOK) ? -EINVAL : 0;
}
-static int n2_compute_chunks(struct ablkcipher_request *req)
+static int n2_compute_chunks(struct skcipher_request *req)
{
- struct n2_request_context *rctx = ablkcipher_request_ctx(req);
- struct ablkcipher_walk *walk = &rctx->walk;
+ struct n2_request_context *rctx = skcipher_request_ctx(req);
+ struct skcipher_walk *walk = &rctx->walk;
struct n2_crypto_chunk *chunk;
unsigned long dest_prev;
unsigned int tot_len;
bool prev_in_place;
int err, nbytes;
- ablkcipher_walk_init(walk, req->dst, req->src, req->nbytes);
- err = ablkcipher_walk_phys(req, walk);
+ err = skcipher_walk_async(walk, req);
if (err)
return err;
@@ -910,12 +911,12 @@ static int n2_compute_chunks(struct ablkcipher_request *req)
bool in_place;
int this_len;
- src_paddr = (page_to_phys(walk->src.page) +
- walk->src.offset);
- dest_paddr = (page_to_phys(walk->dst.page) +
- walk->dst.offset);
+ src_paddr = (page_to_phys(walk->src.phys.page) +
+ walk->src.phys.offset);
+ dest_paddr = (page_to_phys(walk->dst.phys.page) +
+ walk->dst.phys.offset);
in_place = (src_paddr == dest_paddr);
- this_len = cipher_descriptor_len(nbytes, walk->blocksize);
+ this_len = skcipher_descriptor_len(nbytes, walk->blocksize);
if (chunk->arr_len != 0) {
if (in_place != prev_in_place ||
@@ -946,7 +947,7 @@ static int n2_compute_chunks(struct ablkcipher_request *req)
prev_in_place = in_place;
tot_len += this_len;
- err = ablkcipher_walk_done(req, walk, nbytes - this_len);
+ err = skcipher_walk_done(walk, nbytes - this_len);
if (err)
break;
}
@@ -958,15 +959,14 @@ static int n2_compute_chunks(struct ablkcipher_request *req)
return err;
}
-static void n2_chunk_complete(struct ablkcipher_request *req, void *final_iv)
+static void n2_chunk_complete(struct skcipher_request *req, void *final_iv)
{
- struct n2_request_context *rctx = ablkcipher_request_ctx(req);
+ struct n2_request_context *rctx = skcipher_request_ctx(req);
struct n2_crypto_chunk *c, *tmp;
if (final_iv)
memcpy(rctx->walk.iv, final_iv, rctx->walk.blocksize);
- ablkcipher_walk_complete(&rctx->walk);
list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) {
list_del(&c->entry);
if (unlikely(c != &rctx->chunk))
@@ -975,10 +975,10 @@ static void n2_chunk_complete(struct ablkcipher_request *req, void *final_iv)
}
-static int n2_do_ecb(struct ablkcipher_request *req, bool encrypt)
+static int n2_do_ecb(struct skcipher_request *req, bool encrypt)
{
- struct n2_request_context *rctx = ablkcipher_request_ctx(req);
- struct crypto_tfm *tfm = req->base.tfm;
+ struct n2_request_context *rctx = skcipher_request_ctx(req);
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
int err = n2_compute_chunks(req);
struct n2_crypto_chunk *c, *tmp;
unsigned long flags, hv_ret;
@@ -1017,20 +1017,20 @@ out:
return err;
}
-static int n2_encrypt_ecb(struct ablkcipher_request *req)
+static int n2_encrypt_ecb(struct skcipher_request *req)
{
return n2_do_ecb(req, true);
}
-static int n2_decrypt_ecb(struct ablkcipher_request *req)
+static int n2_decrypt_ecb(struct skcipher_request *req)
{
return n2_do_ecb(req, false);
}
-static int n2_do_chaining(struct ablkcipher_request *req, bool encrypt)
+static int n2_do_chaining(struct skcipher_request *req, bool encrypt)
{
- struct n2_request_context *rctx = ablkcipher_request_ctx(req);
- struct crypto_tfm *tfm = req->base.tfm;
+ struct n2_request_context *rctx = skcipher_request_ctx(req);
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
unsigned long flags, hv_ret, iv_paddr;
int err = n2_compute_chunks(req);
struct n2_crypto_chunk *c, *tmp;
@@ -1107,32 +1107,32 @@ out:
return err;
}
-static int n2_encrypt_chaining(struct ablkcipher_request *req)
+static int n2_encrypt_chaining(struct skcipher_request *req)
{
return n2_do_chaining(req, true);
}
-static int n2_decrypt_chaining(struct ablkcipher_request *req)
+static int n2_decrypt_chaining(struct skcipher_request *req)
{
return n2_do_chaining(req, false);
}
-struct n2_cipher_tmpl {
+struct n2_skcipher_tmpl {
const char *name;
const char *drv_name;
u8 block_size;
u8 enc_type;
- struct ablkcipher_alg ablkcipher;
+ struct skcipher_alg skcipher;
};
-static const struct n2_cipher_tmpl cipher_tmpls[] = {
+static const struct n2_skcipher_tmpl skcipher_tmpls[] = {
/* ARC4: only ECB is supported (chaining bits ignored) */
{ .name = "ecb(arc4)",
.drv_name = "ecb-arc4",
.block_size = 1,
.enc_type = (ENC_TYPE_ALG_RC4_STREAM |
ENC_TYPE_CHAINING_ECB),
- .ablkcipher = {
+ .skcipher = {
.min_keysize = 1,
.max_keysize = 256,
.setkey = n2_arc4_setkey,
@@ -1147,7 +1147,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = DES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_DES |
ENC_TYPE_CHAINING_ECB),
- .ablkcipher = {
+ .skcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.setkey = n2_des_setkey,
@@ -1160,7 +1160,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = DES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_DES |
ENC_TYPE_CHAINING_CBC),
- .ablkcipher = {
+ .skcipher = {
.ivsize = DES_BLOCK_SIZE,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
@@ -1174,7 +1174,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = DES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_DES |
ENC_TYPE_CHAINING_CFB),
- .ablkcipher = {
+ .skcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.setkey = n2_des_setkey,
@@ -1189,7 +1189,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = DES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_3DES |
ENC_TYPE_CHAINING_ECB),
- .ablkcipher = {
+ .skcipher = {
.min_keysize = 3 * DES_KEY_SIZE,
.max_keysize = 3 * DES_KEY_SIZE,
.setkey = n2_3des_setkey,
@@ -1202,7 +1202,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = DES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_3DES |
ENC_TYPE_CHAINING_CBC),
- .ablkcipher = {
+ .skcipher = {
.ivsize = DES_BLOCK_SIZE,
.min_keysize = 3 * DES_KEY_SIZE,
.max_keysize = 3 * DES_KEY_SIZE,
@@ -1216,7 +1216,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = DES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_3DES |
ENC_TYPE_CHAINING_CFB),
- .ablkcipher = {
+ .skcipher = {
.min_keysize = 3 * DES_KEY_SIZE,
.max_keysize = 3 * DES_KEY_SIZE,
.setkey = n2_3des_setkey,
@@ -1230,7 +1230,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = AES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_AES128 |
ENC_TYPE_CHAINING_ECB),
- .ablkcipher = {
+ .skcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = n2_aes_setkey,
@@ -1243,7 +1243,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = AES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_AES128 |
ENC_TYPE_CHAINING_CBC),
- .ablkcipher = {
+ .skcipher = {
.ivsize = AES_BLOCK_SIZE,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1257,7 +1257,7 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
.block_size = AES_BLOCK_SIZE,
.enc_type = (ENC_TYPE_ALG_AES128 |
ENC_TYPE_CHAINING_COUNTER),
- .ablkcipher = {
+ .skcipher = {
.ivsize = AES_BLOCK_SIZE,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1268,9 +1268,9 @@ static const struct n2_cipher_tmpl cipher_tmpls[] = {
},
};
-#define NUM_CIPHER_TMPLS ARRAY_SIZE(cipher_tmpls)
+#define NUM_CIPHER_TMPLS ARRAY_SIZE(skcipher_tmpls)
-static LIST_HEAD(cipher_algs);
+static LIST_HEAD(skcipher_algs);
struct n2_hash_tmpl {
const char *name;
@@ -1344,14 +1344,14 @@ static int algs_registered;
static void __n2_unregister_algs(void)
{
- struct n2_cipher_alg *cipher, *cipher_tmp;
+ struct n2_skcipher_alg *skcipher, *skcipher_tmp;
struct n2_ahash_alg *alg, *alg_tmp;
struct n2_hmac_alg *hmac, *hmac_tmp;
- list_for_each_entry_safe(cipher, cipher_tmp, &cipher_algs, entry) {
- crypto_unregister_alg(&cipher->alg);
- list_del(&cipher->entry);
- kfree(cipher);
+ list_for_each_entry_safe(skcipher, skcipher_tmp, &skcipher_algs, entry) {
+ crypto_unregister_skcipher(&skcipher->skcipher);
+ list_del(&skcipher->entry);
+ kfree(skcipher);
}
list_for_each_entry_safe(hmac, hmac_tmp, &hmac_algs, derived.entry) {
crypto_unregister_ahash(&hmac->derived.alg);
@@ -1365,44 +1365,42 @@ static void __n2_unregister_algs(void)
}
}
-static int n2_cipher_cra_init(struct crypto_tfm *tfm)
+static int n2_skcipher_init_tfm(struct crypto_skcipher *tfm)
{
- tfm->crt_ablkcipher.reqsize = sizeof(struct n2_request_context);
+ crypto_skcipher_set_reqsize(tfm, sizeof(struct n2_request_context));
return 0;
}
-static int __n2_register_one_cipher(const struct n2_cipher_tmpl *tmpl)
+static int __n2_register_one_skcipher(const struct n2_skcipher_tmpl *tmpl)
{
- struct n2_cipher_alg *p = kzalloc(sizeof(*p), GFP_KERNEL);
- struct crypto_alg *alg;
+ struct n2_skcipher_alg *p = kzalloc(sizeof(*p), GFP_KERNEL);
+ struct skcipher_alg *alg;
int err;
if (!p)
return -ENOMEM;
- alg = &p->alg;
+ alg = &p->skcipher;
+ *alg = tmpl->skcipher;
- snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name);
- snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->drv_name);
- alg->cra_priority = N2_CRA_PRIORITY;
- alg->cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
- CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC;
- alg->cra_blocksize = tmpl->block_size;
+ snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name);
+ snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->drv_name);
+ alg->base.cra_priority = N2_CRA_PRIORITY;
+ alg->base.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC;
+ alg->base.cra_blocksize = tmpl->block_size;
p->enc_type = tmpl->enc_type;
- alg->cra_ctxsize = sizeof(struct n2_cipher_context);
- alg->cra_type = &crypto_ablkcipher_type;
- alg->cra_u.ablkcipher = tmpl->ablkcipher;
- alg->cra_init = n2_cipher_cra_init;
- alg->cra_module = THIS_MODULE;
-
- list_add(&p->entry, &cipher_algs);
- err = crypto_register_alg(alg);
+ alg->base.cra_ctxsize = sizeof(struct n2_skcipher_context);
+ alg->base.cra_module = THIS_MODULE;
+ alg->init = n2_skcipher_init_tfm;
+
+ list_add(&p->entry, &skcipher_algs);
+ err = crypto_register_skcipher(alg);
if (err) {
- pr_err("%s alg registration failed\n", alg->cra_name);
+ pr_err("%s alg registration failed\n", alg->base.cra_name);
list_del(&p->entry);
kfree(p);
} else {
- pr_info("%s alg registered\n", alg->cra_name);
+ pr_info("%s alg registered\n", alg->base.cra_name);
}
return err;
}
@@ -1517,7 +1515,7 @@ static int n2_register_algs(void)
}
}
for (i = 0; i < NUM_CIPHER_TMPLS; i++) {
- err = __n2_register_one_cipher(&cipher_tmpls[i]);
+ err = __n2_register_one_skcipher(&skcipher_tmpls[i]);
if (err) {
__n2_unregister_algs();
goto out;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.