linux/drivers/crypto/caam/caamalg.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* caam - Freescale FSL CAAM support for crypto API
*
* Copyright 2008-2011 Freescale Semiconductor, Inc.
* Copyright 2016-2019 NXP
*
* Based on talitos crypto API driver.
*
* relationship of job descriptors to shared descriptors (SteveC Dec 10 2008):
*
* --------------- ---------------
* | JobDesc #1 |-------------------->| ShareDesc |
* | *(packet 1) | | (PDB) |
* --------------- |------------->| (hashKey) |
* . | | (cipherKey) |
* . | |-------->| (operation) |
* --------------- | | ---------------
* | JobDesc #2 |------| |
* | *(packet 2) | |
* --------------- |
* . |
* . |
* --------------- |
* | JobDesc #3 |------------
* | *(packet 3) |
* ---------------
*
* The SharedDesc never changes for a connection unless rekeyed, but
* each packet will likely be in a different place. So all we need
* to know to process the packet is where the input is, where the
* output goes, and what context we want to process with. Context is
* in the SharedDesc, packet references in the JobDesc.
*
* So, a job desc looks like:
*
* ---------------------
* | Header |
* | ShareDesc Pointer |
* | SEQ_OUT_PTR |
* | (output buffer) |
* | (output length) |
* | SEQ_IN_PTR |
* | (input buffer) |
* | (input length) |
* ---------------------
*/
#include "compat.h"
#include "regs.h"
#include "intern.h"
#include "desc_constr.h"
#include "jr.h"
#include "error.h"
#include "sg_sw_sec4.h"
#include "key_gen.h"
#include "caamalg_desc.h"
/*
* crypto alg
*/
#define CAAM_CRA_PRIORITY 3000
/* max key is sum of AES_MAX_KEY_SIZE, max split key size */
#define CAAM_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + \
CTR_RFC3686_NONCE_SIZE + \
SHA512_DIGEST_SIZE * 2)
#define AEAD_DESC_JOB_IO_LEN (DESC_JOB_IO_LEN + CAAM_CMD_SZ * 2)
#define GCM_DESC_JOB_IO_LEN (AEAD_DESC_JOB_IO_LEN + \
CAAM_CMD_SZ * 4)
#define AUTHENC_DESC_JOB_IO_LEN (AEAD_DESC_JOB_IO_LEN + \
CAAM_CMD_SZ * 5)
#define CHACHAPOLY_DESC_JOB_IO_LEN (AEAD_DESC_JOB_IO_LEN + CAAM_CMD_SZ * 6)
#define DESC_MAX_USED_BYTES (CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN)
#define DESC_MAX_USED_LEN (DESC_MAX_USED_BYTES / CAAM_CMD_SZ)
struct caam_alg_entry {
int class1_alg_type;
int class2_alg_type;
bool rfc3686;
bool geniv;
bool nodkp;
};
struct caam_aead_alg {
struct aead_alg aead;
struct caam_alg_entry caam;
bool registered;
};
struct caam_skcipher_alg {
struct skcipher_alg skcipher;
struct caam_alg_entry caam;
bool registered;
};
/*
* per-session context
*/
struct caam_ctx {
u32 sh_desc_enc[DESC_MAX_USED_LEN];
u32 sh_desc_dec[DESC_MAX_USED_LEN];
u8 key[CAAM_MAX_KEY_SIZE];
dma_addr_t sh_desc_enc_dma;
dma_addr_t sh_desc_dec_dma;
dma_addr_t key_dma;
enum dma_data_direction dir;
struct device *jrdev;
struct alginfo adata;
struct alginfo cdata;
unsigned int authsize;
};
static int aead_null_set_sh_desc(struct crypto_aead *aead)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent);
u32 *desc;
int rem_bytes = CAAM_DESC_BYTES_MAX - AEAD_DESC_JOB_IO_LEN -
ctx->adata.keylen_pad;
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (rem_bytes >= DESC_AEAD_NULL_ENC_LEN) {
ctx->adata.key_inline = true;
ctx->adata.key_virt = ctx->key;
} else {
ctx->adata.key_inline = false;
ctx->adata.key_dma = ctx->key_dma;
}
/* aead_encrypt shared descriptor */
desc = ctx->sh_desc_enc;
cnstr_shdsc_aead_null_encap(desc, &ctx->adata, ctx->authsize,
ctrlpriv->era);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (rem_bytes >= DESC_AEAD_NULL_DEC_LEN) {
ctx->adata.key_inline = true;
ctx->adata.key_virt = ctx->key;
} else {
ctx->adata.key_inline = false;
ctx->adata.key_dma = ctx->key_dma;
}
/* aead_decrypt shared descriptor */
desc = ctx->sh_desc_dec;
cnstr_shdsc_aead_null_decap(desc, &ctx->adata, ctx->authsize,
ctrlpriv->era);
dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma,
desc_bytes(desc), ctx->dir);
return 0;
}
static int aead_set_sh_desc(struct crypto_aead *aead)
{
struct caam_aead_alg *alg = container_of(crypto_aead_alg(aead),
struct caam_aead_alg, aead);
unsigned int ivsize = crypto_aead_ivsize(aead);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent);
u32 ctx1_iv_off = 0;
u32 *desc, *nonce = NULL;
u32 inl_mask;
unsigned int data_len[2];
const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) ==
OP_ALG_AAI_CTR_MOD128);
const bool is_rfc3686 = alg->caam.rfc3686;
if (!ctx->authsize)
return 0;
/* NULL encryption / decryption */
if (!ctx->cdata.keylen)
return aead_null_set_sh_desc(aead);
/*
* AES-CTR needs to load IV in CONTEXT1 reg
* at an offset of 128bits (16bytes)
* CONTEXT1[255:128] = IV
*/
if (ctr_mode)
ctx1_iv_off = 16;
/*
* RFC3686 specific:
* CONTEXT1[255:128] = {NONCE, IV, COUNTER}
*/
if (is_rfc3686) {
ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE;
nonce = (u32 *)((void *)ctx->key + ctx->adata.keylen_pad +
ctx->cdata.keylen - CTR_RFC3686_NONCE_SIZE);
}
data_len[0] = ctx->adata.keylen_pad;
data_len[1] = ctx->cdata.keylen;
if (alg->caam.geniv)
goto skip_enc;
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (desc_inline_query(DESC_AEAD_ENC_LEN +
(is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0),
AUTHENC_DESC_JOB_IO_LEN, data_len, &inl_mask,
ARRAY_SIZE(data_len)) < 0)
return -EINVAL;
if (inl_mask & 1)
ctx->adata.key_virt = ctx->key;
else
ctx->adata.key_dma = ctx->key_dma;
if (inl_mask & 2)
ctx->cdata.key_virt = ctx->key + ctx->adata.keylen_pad;
else
ctx->cdata.key_dma = ctx->key_dma + ctx->adata.keylen_pad;
ctx->adata.key_inline = !!(inl_mask & 1);
ctx->cdata.key_inline = !!(inl_mask & 2);
/* aead_encrypt shared descriptor */
desc = ctx->sh_desc_enc;
cnstr_shdsc_aead_encap(desc, &ctx->cdata, &ctx->adata, ivsize,
ctx->authsize, is_rfc3686, nonce, ctx1_iv_off,
false, ctrlpriv->era);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
skip_enc:
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (desc_inline_query(DESC_AEAD_DEC_LEN +
(is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0),
AUTHENC_DESC_JOB_IO_LEN, data_len, &inl_mask,
ARRAY_SIZE(data_len)) < 0)
return -EINVAL;
if (inl_mask & 1)
ctx->adata.key_virt = ctx->key;
else
ctx->adata.key_dma = ctx->key_dma;
if (inl_mask & 2)
ctx->cdata.key_virt = ctx->key + ctx->adata.keylen_pad;
else
ctx->cdata.key_dma = ctx->key_dma + ctx->adata.keylen_pad;
ctx->adata.key_inline = !!(inl_mask & 1);
ctx->cdata.key_inline = !!(inl_mask & 2);
/* aead_decrypt shared descriptor */
desc = ctx->sh_desc_dec;
cnstr_shdsc_aead_decap(desc, &ctx->cdata, &ctx->adata, ivsize,
ctx->authsize, alg->caam.geniv, is_rfc3686,
nonce, ctx1_iv_off, false, ctrlpriv->era);
dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma,
desc_bytes(desc), ctx->dir);
if (!alg->caam.geniv)
goto skip_givenc;
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (desc_inline_query(DESC_AEAD_GIVENC_LEN +
(is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0),
AUTHENC_DESC_JOB_IO_LEN, data_len, &inl_mask,
ARRAY_SIZE(data_len)) < 0)
return -EINVAL;
if (inl_mask & 1)
ctx->adata.key_virt = ctx->key;
else
ctx->adata.key_dma = ctx->key_dma;
if (inl_mask & 2)
ctx->cdata.key_virt = ctx->key + ctx->adata.keylen_pad;
else
ctx->cdata.key_dma = ctx->key_dma + ctx->adata.keylen_pad;
ctx->adata.key_inline = !!(inl_mask & 1);
ctx->cdata.key_inline = !!(inl_mask & 2);
/* aead_givencrypt shared descriptor */
desc = ctx->sh_desc_enc;
cnstr_shdsc_aead_givencap(desc, &ctx->cdata, &ctx->adata, ivsize,
ctx->authsize, is_rfc3686, nonce,
ctx1_iv_off, false, ctrlpriv->era);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
skip_givenc:
return 0;
}
static int aead_setauthsize(struct crypto_aead *authenc,
unsigned int authsize)
{
struct caam_ctx *ctx = crypto_aead_ctx(authenc);
ctx->authsize = authsize;
aead_set_sh_desc(authenc);
return 0;
}
static int gcm_set_sh_desc(struct crypto_aead *aead)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
unsigned int ivsize = crypto_aead_ivsize(aead);
u32 *desc;
int rem_bytes = CAAM_DESC_BYTES_MAX - GCM_DESC_JOB_IO_LEN -
ctx->cdata.keylen;
if (!ctx->cdata.keylen || !ctx->authsize)
return 0;
/*
* AES GCM encrypt shared descriptor
* Job Descriptor and Shared Descriptor
* must fit into the 64-word Descriptor h/w Buffer
*/
if (rem_bytes >= DESC_GCM_ENC_LEN) {
ctx->cdata.key_inline = true;
ctx->cdata.key_virt = ctx->key;
} else {
ctx->cdata.key_inline = false;
ctx->cdata.key_dma = ctx->key_dma;
}
desc = ctx->sh_desc_enc;
cnstr_shdsc_gcm_encap(desc, &ctx->cdata, ivsize, ctx->authsize, false);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (rem_bytes >= DESC_GCM_DEC_LEN) {
ctx->cdata.key_inline = true;
ctx->cdata.key_virt = ctx->key;
} else {
ctx->cdata.key_inline = false;
ctx->cdata.key_dma = ctx->key_dma;
}
desc = ctx->sh_desc_dec;
cnstr_shdsc_gcm_decap(desc, &ctx->cdata, ivsize, ctx->authsize, false);
dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma,
desc_bytes(desc), ctx->dir);
return 0;
}
static int gcm_setauthsize(struct crypto_aead *authenc, unsigned int authsize)
{
struct caam_ctx *ctx = crypto_aead_ctx(authenc);
int err;
err = crypto_gcm_check_authsize(authsize);
if (err)
return err;
ctx->authsize = authsize;
gcm_set_sh_desc(authenc);
return 0;
}
static int rfc4106_set_sh_desc(struct crypto_aead *aead)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
unsigned int ivsize = crypto_aead_ivsize(aead);
u32 *desc;
int rem_bytes = CAAM_DESC_BYTES_MAX - GCM_DESC_JOB_IO_LEN -
ctx->cdata.keylen;
if (!ctx->cdata.keylen || !ctx->authsize)
return 0;
/*
* RFC4106 encrypt shared descriptor
* Job Descriptor and Shared Descriptor
* must fit into the 64-word Descriptor h/w Buffer
*/
if (rem_bytes >= DESC_RFC4106_ENC_LEN) {
ctx->cdata.key_inline = true;
ctx->cdata.key_virt = ctx->key;
} else {
ctx->cdata.key_inline = false;
ctx->cdata.key_dma = ctx->key_dma;
}
desc = ctx->sh_desc_enc;
cnstr_shdsc_rfc4106_encap(desc, &ctx->cdata, ivsize, ctx->authsize,
false);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (rem_bytes >= DESC_RFC4106_DEC_LEN) {
ctx->cdata.key_inline = true;
ctx->cdata.key_virt = ctx->key;
} else {
ctx->cdata.key_inline = false;
ctx->cdata.key_dma = ctx->key_dma;
}
desc = ctx->sh_desc_dec;
cnstr_shdsc_rfc4106_decap(desc, &ctx->cdata, ivsize, ctx->authsize,
false);
dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma,
desc_bytes(desc), ctx->dir);
return 0;
}
static int rfc4106_setauthsize(struct crypto_aead *authenc,
unsigned int authsize)
{
struct caam_ctx *ctx = crypto_aead_ctx(authenc);
int err;
err = crypto_rfc4106_check_authsize(authsize);
if (err)
return err;
ctx->authsize = authsize;
rfc4106_set_sh_desc(authenc);
return 0;
}
static int rfc4543_set_sh_desc(struct crypto_aead *aead)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
unsigned int ivsize = crypto_aead_ivsize(aead);
u32 *desc;
int rem_bytes = CAAM_DESC_BYTES_MAX - GCM_DESC_JOB_IO_LEN -
ctx->cdata.keylen;
if (!ctx->cdata.keylen || !ctx->authsize)
return 0;
/*
* RFC4543 encrypt shared descriptor
* Job Descriptor and Shared Descriptor
* must fit into the 64-word Descriptor h/w Buffer
*/
if (rem_bytes >= DESC_RFC4543_ENC_LEN) {
ctx->cdata.key_inline = true;
ctx->cdata.key_virt = ctx->key;
} else {
ctx->cdata.key_inline = false;
ctx->cdata.key_dma = ctx->key_dma;
}
desc = ctx->sh_desc_enc;
cnstr_shdsc_rfc4543_encap(desc, &ctx->cdata, ivsize, ctx->authsize,
false);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (rem_bytes >= DESC_RFC4543_DEC_LEN) {
ctx->cdata.key_inline = true;
ctx->cdata.key_virt = ctx->key;
} else {
ctx->cdata.key_inline = false;
ctx->cdata.key_dma = ctx->key_dma;
}
desc = ctx->sh_desc_dec;
cnstr_shdsc_rfc4543_decap(desc, &ctx->cdata, ivsize, ctx->authsize,
false);
dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma,
desc_bytes(desc), ctx->dir);
return 0;
}
static int rfc4543_setauthsize(struct crypto_aead *authenc,
unsigned int authsize)
{
struct caam_ctx *ctx = crypto_aead_ctx(authenc);
if (authsize != 16)
return -EINVAL;
ctx->authsize = authsize;
rfc4543_set_sh_desc(authenc);
return 0;
}
static int chachapoly_set_sh_desc(struct crypto_aead *aead)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
unsigned int ivsize = crypto_aead_ivsize(aead);
u32 *desc;
if (!ctx->cdata.keylen || !ctx->authsize)
return 0;
desc = ctx->sh_desc_enc;
cnstr_shdsc_chachapoly(desc, &ctx->cdata, &ctx->adata, ivsize,
ctx->authsize, true, false);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
desc = ctx->sh_desc_dec;
cnstr_shdsc_chachapoly(desc, &ctx->cdata, &ctx->adata, ivsize,
ctx->authsize, false, false);
dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma,
desc_bytes(desc), ctx->dir);
return 0;
}
static int chachapoly_setauthsize(struct crypto_aead *aead,
unsigned int authsize)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
if (authsize != POLY1305_DIGEST_SIZE)
return -EINVAL;
ctx->authsize = authsize;
return chachapoly_set_sh_desc(aead);
}
static int chachapoly_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
unsigned int ivsize = crypto_aead_ivsize(aead);
unsigned int saltlen = CHACHAPOLY_IV_SIZE - ivsize;
if (keylen != CHACHA_KEY_SIZE + saltlen) {
crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
ctx->cdata.key_virt = key;
ctx->cdata.keylen = keylen - saltlen;
return chachapoly_set_sh_desc(aead);
}
static int aead_setkey(struct crypto_aead *aead,
const u8 *key, unsigned int keylen)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent);
struct crypto_authenc_keys keys;
int ret = 0;
if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
goto badkey;
dev_dbg(jrdev, "keylen %d enckeylen %d authkeylen %d\n",
keys.authkeylen + keys.enckeylen, keys.enckeylen,
keys.authkeylen);
print_hex_dump_debug("key in @"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
/*
* If DKP is supported, use it in the shared descriptor to generate
* the split key.
*/
if (ctrlpriv->era >= 6) {
ctx->adata.keylen = keys.authkeylen;
ctx->adata.keylen_pad = split_key_len(ctx->adata.algtype &
OP_ALG_ALGSEL_MASK);
if (ctx->adata.keylen_pad + keys.enckeylen > CAAM_MAX_KEY_SIZE)
goto badkey;
memcpy(ctx->key, keys.authkey, keys.authkeylen);
memcpy(ctx->key + ctx->adata.keylen_pad, keys.enckey,
keys.enckeylen);
dma_sync_single_for_device(jrdev, ctx->key_dma,
ctx->adata.keylen_pad +
keys.enckeylen, ctx->dir);
goto skip_split_key;
}
ret = gen_split_key(ctx->jrdev, ctx->key, &ctx->adata, keys.authkey,
keys.authkeylen, CAAM_MAX_KEY_SIZE -
keys.enckeylen);
if (ret) {
goto badkey;
}
/* postpend encryption key to auth split key */
memcpy(ctx->key + ctx->adata.keylen_pad, keys.enckey, keys.enckeylen);
dma_sync_single_for_device(jrdev, ctx->key_dma, ctx->adata.keylen_pad +
keys.enckeylen, ctx->dir);
print_hex_dump_debug("ctx.key@"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, ctx->key,
ctx->adata.keylen_pad + keys.enckeylen, 1);
skip_split_key:
ctx->cdata.keylen = keys.enckeylen;
memzero_explicit(&keys, sizeof(keys));
return aead_set_sh_desc(aead);
badkey:
crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
memzero_explicit(&keys, sizeof(keys));
return -EINVAL;
}
static int des3_aead_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
struct crypto_authenc_keys keys;
u32 flags;
int err;
err = crypto_authenc_extractkeys(&keys, key, keylen);
if (unlikely(err))
goto badkey;
err = -EINVAL;
if (keys.enckeylen != DES3_EDE_KEY_SIZE)
goto badkey;
flags = crypto_aead_get_flags(aead);
err = __des3_verify_key(&flags, keys.enckey);
if (unlikely(err)) {
crypto_aead_set_flags(aead, flags);
goto out;
}
err = aead_setkey(aead, key, keylen);
out:
memzero_explicit(&keys, sizeof(keys));
return err;
badkey:
crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
goto out;
}
static int gcm_setkey(struct crypto_aead *aead,
const u8 *key, unsigned int keylen)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
int err;
err = aes_check_keylen(keylen);
if (err) {
crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
return err;
}
print_hex_dump_debug("key in @"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
memcpy(ctx->key, key, keylen);
dma_sync_single_for_device(jrdev, ctx->key_dma, keylen, ctx->dir);
ctx->cdata.keylen = keylen;
return gcm_set_sh_desc(aead);
}
static int rfc4106_setkey(struct crypto_aead *aead,
const u8 *key, unsigned int keylen)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
int err;
err = aes_check_keylen(keylen - 4);
if (err) {
crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
return err;
}
print_hex_dump_debug("key in @"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
memcpy(ctx->key, key, keylen);
/*
* The last four bytes of the key material are used as the salt value
* in the nonce. Update the AES key length.
*/
ctx->cdata.keylen = keylen - 4;
dma_sync_single_for_device(jrdev, ctx->key_dma, ctx->cdata.keylen,
ctx->dir);
return rfc4106_set_sh_desc(aead);
}
static int rfc4543_setkey(struct crypto_aead *aead,
const u8 *key, unsigned int keylen)
{
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
int err;
err = aes_check_keylen(keylen - 4);
if (err) {
crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
return err;
}
print_hex_dump_debug("key in @"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
memcpy(ctx->key, key, keylen);
/*
* The last four bytes of the key material are used as the salt value
* in the nonce. Update the AES key length.
*/
ctx->cdata.keylen = keylen - 4;
dma_sync_single_for_device(jrdev, ctx->key_dma, ctx->cdata.keylen,
ctx->dir);
return rfc4543_set_sh_desc(aead);
}
static int skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key,
unsigned int keylen, const u32 ctx1_iv_off)
{
struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
struct caam_skcipher_alg *alg =
container_of(crypto_skcipher_alg(skcipher), typeof(*alg),
skcipher);
struct device *jrdev = ctx->jrdev;
unsigned int ivsize = crypto_skcipher_ivsize(skcipher);
u32 *desc;
const bool is_rfc3686 = alg->caam.rfc3686;
print_hex_dump_debug("key in @"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
ctx->cdata.keylen = keylen;
ctx->cdata.key_virt = key;
ctx->cdata.key_inline = true;
/* skcipher_encrypt shared descriptor */
desc = ctx->sh_desc_enc;
cnstr_shdsc_skcipher_encap(desc, &ctx->cdata, ivsize, is_rfc3686,
ctx1_iv_off);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
/* skcipher_decrypt shared descriptor */
desc = ctx->sh_desc_dec;
cnstr_shdsc_skcipher_decap(desc, &ctx->cdata, ivsize, is_rfc3686,
ctx1_iv_off);
dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma,
desc_bytes(desc), ctx->dir);
return 0;
}
static int aes_skcipher_setkey(struct crypto_skcipher *skcipher,
const u8 *key, unsigned int keylen)
{
int err;
err = aes_check_keylen(keylen);
if (err) {
crypto_skcipher_set_flags(skcipher,
CRYPTO_TFM_RES_BAD_KEY_LEN);
return err;
}
return skcipher_setkey(skcipher, key, keylen, 0);
}
static int rfc3686_skcipher_setkey(struct crypto_skcipher *skcipher,
const u8 *key, unsigned int keylen)
{
u32 ctx1_iv_off;
int err;
/*
* RFC3686 specific:
* | CONTEXT1[255:128] = {NONCE, IV, COUNTER}
* | *key = {KEY, NONCE}
*/
ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE;
keylen -= CTR_RFC3686_NONCE_SIZE;
err = aes_check_keylen(keylen);
if (err) {
crypto_skcipher_set_flags(skcipher,
CRYPTO_TFM_RES_BAD_KEY_LEN);
return err;
}
return skcipher_setkey(skcipher, key, keylen, ctx1_iv_off);
}
static int ctr_skcipher_setkey(struct crypto_skcipher *skcipher,
const u8 *key, unsigned int keylen)
{
u32 ctx1_iv_off;
int err;
/*
* AES-CTR needs to load IV in CONTEXT1 reg
* at an offset of 128bits (16bytes)
* CONTEXT1[255:128] = IV
*/
ctx1_iv_off = 16;
err = aes_check_keylen(keylen);
if (err) {
crypto_skcipher_set_flags(skcipher,
CRYPTO_TFM_RES_BAD_KEY_LEN);
return err;
}
return skcipher_setkey(skcipher, key, keylen, ctx1_iv_off);
}
static int arc4_skcipher_setkey(struct crypto_skcipher *skcipher,
const u8 *key, unsigned int keylen)
{
return skcipher_setkey(skcipher, key, keylen, 0);
}
static int des_skcipher_setkey(struct crypto_skcipher *skcipher,
const u8 *key, unsigned int keylen)
{
u32 tmp[DES3_EDE_EXPKEY_WORDS];
struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
if (keylen == DES3_EDE_KEY_SIZE &&
__des3_ede_setkey(tmp, &tfm->crt_flags, key, DES3_EDE_KEY_SIZE)) {
return -EINVAL;
}
if (!des_ekey(tmp, key) && (crypto_skcipher_get_flags(skcipher) &
CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
crypto_skcipher_set_flags(skcipher,
CRYPTO_TFM_RES_WEAK_KEY);
return -EINVAL;
}
return skcipher_setkey(skcipher, key, keylen, 0);
}
static int xts_skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key,
unsigned int keylen)
{
struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
struct device *jrdev = ctx->jrdev;
u32 *desc;
if (keylen != 2 * AES_MIN_KEY_SIZE && keylen != 2 * AES_MAX_KEY_SIZE) {
crypto_skcipher_set_flags(skcipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
dev_err(jrdev, "key size mismatch\n");
return -EINVAL;
}
ctx->cdata.keylen = keylen;
ctx->cdata.key_virt = key;
ctx->cdata.key_inline = true;
/* xts_skcipher_encrypt shared descriptor */
desc = ctx->sh_desc_enc;
cnstr_shdsc_xts_skcipher_encap(desc, &ctx->cdata);
dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma,
desc_bytes(desc), ctx->dir);
/* xts_skcipher_decrypt shared descriptor */
desc = ctx->sh_desc_dec;
cnstr_shdsc_xts_skcipher_decap(desc, &ctx->cdata);
dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma,
desc_bytes(desc), ctx->dir);
return 0;
}
/*
* aead_edesc - s/w-extended aead descriptor
* @src_nents: number of segments in input s/w scatterlist
* @dst_nents: number of segments in output s/w scatterlist
* @mapped_src_nents: number of segments in input h/w link table
* @mapped_dst_nents: number of segments in output h/w link table
* @sec4_sg_bytes: length of dma mapped sec4_sg space
* @sec4_sg_dma: bus physical mapped address of h/w link table
* @sec4_sg: pointer to h/w link table
* @hw_desc: the h/w job descriptor followed by any referenced link tables
*/
struct aead_edesc {
int src_nents;
int dst_nents;
int mapped_src_nents;
int mapped_dst_nents;
int sec4_sg_bytes;
dma_addr_t sec4_sg_dma;
struct sec4_sg_entry *sec4_sg;
u32 hw_desc[];
};
/*
* skcipher_edesc - s/w-extended skcipher descriptor
* @src_nents: number of segments in input s/w scatterlist
* @dst_nents: number of segments in output s/w scatterlist
* @mapped_src_nents: number of segments in input h/w link table
* @mapped_dst_nents: number of segments in output h/w link table
* @iv_dma: dma address of iv for checking continuity and link table
* @sec4_sg_bytes: length of dma mapped sec4_sg space
* @sec4_sg_dma: bus physical mapped address of h/w link table
* @sec4_sg: pointer to h/w link table
* @hw_desc: the h/w job descriptor followed by any referenced link tables
* and IV
*/
struct skcipher_edesc {
int src_nents;
int dst_nents;
int mapped_src_nents;
int mapped_dst_nents;
dma_addr_t iv_dma;
int sec4_sg_bytes;
dma_addr_t sec4_sg_dma;
struct sec4_sg_entry *sec4_sg;
u32 hw_desc[0];
};
static void caam_unmap(struct device *dev, struct scatterlist *src,
struct scatterlist *dst, int src_nents,
int dst_nents,
dma_addr_t iv_dma, int ivsize, dma_addr_t sec4_sg_dma,
int sec4_sg_bytes)
{
if (dst != src) {
if (src_nents)
dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE);
if (dst_nents)
dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE);
} else {
dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL);
}
if (iv_dma)
dma_unmap_single(dev, iv_dma, ivsize, DMA_BIDIRECTIONAL);
if (sec4_sg_bytes)
dma_unmap_single(dev, sec4_sg_dma, sec4_sg_bytes,
DMA_TO_DEVICE);
}
static void aead_unmap(struct device *dev,
struct aead_edesc *edesc,
struct aead_request *req)
{
caam_unmap(dev, req->src, req->dst,
edesc->src_nents, edesc->dst_nents, 0, 0,
edesc->sec4_sg_dma, edesc->sec4_sg_bytes);
}
static void skcipher_unmap(struct device *dev, struct skcipher_edesc *edesc,
struct skcipher_request *req)
{
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
int ivsize = crypto_skcipher_ivsize(skcipher);
caam_unmap(dev, req->src, req->dst,
edesc->src_nents, edesc->dst_nents,
edesc->iv_dma, ivsize,
edesc->sec4_sg_dma, edesc->sec4_sg_bytes);
}
static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
struct aead_request *req = context;
struct aead_edesc *edesc;
int ecode = 0;
dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
edesc = container_of(desc, struct aead_edesc, hw_desc[0]);
if (err)
ecode = caam_jr_strstatus(jrdev, err);
aead_unmap(jrdev, edesc, req);
kfree(edesc);
aead_request_complete(req, ecode);
}
static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
struct aead_request *req = context;
struct aead_edesc *edesc;
int ecode = 0;
dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
edesc = container_of(desc, struct aead_edesc, hw_desc[0]);
if (err)
ecode = caam_jr_strstatus(jrdev, err);
aead_unmap(jrdev, edesc, req);
kfree(edesc);
aead_request_complete(req, ecode);
}
static void skcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
struct skcipher_request *req = context;
struct skcipher_edesc *edesc;
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
int ivsize = crypto_skcipher_ivsize(skcipher);
int ecode = 0;
dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
edesc = container_of(desc, struct skcipher_edesc, hw_desc[0]);
if (err)
ecode = caam_jr_strstatus(jrdev, err);
skcipher_unmap(jrdev, edesc, req);
/*
* The crypto API expects us to set the IV (req->iv) to the last
* ciphertext block (CBC mode) or last counter (CTR mode).
* This is used e.g. by the CTS mode.
*/
if (ivsize && !ecode) {
memcpy(req->iv, (u8 *)edesc->sec4_sg + edesc->sec4_sg_bytes,
ivsize);
print_hex_dump_debug("dstiv @"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
edesc->src_nents > 1 ? 100 : ivsize, 1);
}
caam_dump_sg("dst @" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->dst,
edesc->dst_nents > 1 ? 100 : req->cryptlen, 1);
kfree(edesc);
skcipher_request_complete(req, ecode);
}
static void skcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
struct skcipher_request *req = context;
struct skcipher_edesc *edesc;
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
int ivsize = crypto_skcipher_ivsize(skcipher);
int ecode = 0;
dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
edesc = container_of(desc, struct skcipher_edesc, hw_desc[0]);
if (err)
ecode = caam_jr_strstatus(jrdev, err);
skcipher_unmap(jrdev, edesc, req);
/*
* The crypto API expects us to set the IV (req->iv) to the last
* ciphertext block (CBC mode) or last counter (CTR mode).
* This is used e.g. by the CTS mode.
*/
if (ivsize && !ecode) {
memcpy(req->iv, (u8 *)edesc->sec4_sg + edesc->sec4_sg_bytes,
ivsize);
print_hex_dump_debug("dstiv @" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
ivsize, 1);
}
caam_dump_sg("dst @" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->dst,
edesc->dst_nents > 1 ? 100 : req->cryptlen, 1);
kfree(edesc);
skcipher_request_complete(req, ecode);
}
/*
* Fill in aead job descriptor
*/
static void init_aead_job(struct aead_request *req,
struct aead_edesc *edesc,
bool all_contig, bool encrypt)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
int authsize = ctx->authsize;
u32 *desc = edesc->hw_desc;
u32 out_options, in_options;
dma_addr_t dst_dma, src_dma;
int len, sec4_sg_index = 0;
dma_addr_t ptr;
u32 *sh_desc;
sh_desc = encrypt ? ctx->sh_desc_enc : ctx->sh_desc_dec;
ptr = encrypt ? ctx->sh_desc_enc_dma : ctx->sh_desc_dec_dma;
len = desc_len(sh_desc);
init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE);
if (all_contig) {
src_dma = edesc->mapped_src_nents ? sg_dma_address(req->src) :
0;
in_options = 0;
} else {
src_dma = edesc->sec4_sg_dma;
sec4_sg_index += edesc->mapped_src_nents;
in_options = LDST_SGF;
}
append_seq_in_ptr(desc, src_dma, req->assoclen + req->cryptlen,
in_options);
dst_dma = src_dma;
out_options = in_options;
if (unlikely(req->src != req->dst)) {
if (!edesc->mapped_dst_nents) {
dst_dma = 0;
crypto: caam - avoid S/G table fetching for AEAD zero-length output When enabling IOMMU support, the following issue becomes visible in the AEAD zero-length case. Even though the output sequence length is set to zero, the crypto engine tries to prefetch 4 S/G table entries (since SGF bit is set in SEQ OUT PTR command - which is either generated in SW in case of caam/jr or in HW in case of caam/qi, caam/qi2). The DMA read operation will trigger an IOMMU fault since the address in the SEQ OUT PTR is "dummy" (set to zero / not obtained via DMA API mapping). 1. In case of caam/jr, avoid the IOMMU fault by clearing the SGF bit in SEQ OUT PTR command. 2. In case of caam/qi - setting address, bpid, length to zero for output entry in the compound frame has a special meaning (cf. CAAM RM): "Output frame = Unspecified, Input address = Y. A unspecified frame is indicated by an unused SGT entry (an entry in which the Address, Length, and BPID fields are all zero). SEC obtains output buffers from BMan as prescribed by the preheader." Since no output buffers are needed, modify the preheader by setting (ABS = 1, ADDBUF = 0): -"ABS = 1 means obtain the number of buffers in ADDBUF (0 or 1) from the pool POOL ID" -ADDBUF: "If ABS is set, ADD BUF specifies whether to allocate a buffer or not" 3. In case of caam/qi2, since engine: -does not support FLE[FMT]=2'b11 ("unused" entry) mentioned in DPAA2 RM -requires output entry to be present, even if not used the solution chosen is to leave output frame list entry zeroized. Fixes: 763069ba49d3 ("crypto: caam - handle zero-length AEAD output") Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-05-03 14:17:37 +00:00
out_options = 0;
} else if (edesc->mapped_dst_nents == 1) {
dst_dma = sg_dma_address(req->dst);
out_options = 0;
} else {
dst_dma = edesc->sec4_sg_dma +
sec4_sg_index *
sizeof(struct sec4_sg_entry);
out_options = LDST_SGF;
}
}
if (encrypt)
append_seq_out_ptr(desc, dst_dma,
req->assoclen + req->cryptlen + authsize,
out_options);
else
append_seq_out_ptr(desc, dst_dma,
req->assoclen + req->cryptlen - authsize,
out_options);
}
static void init_gcm_job(struct aead_request *req,
struct aead_edesc *edesc,
bool all_contig, bool encrypt)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
unsigned int ivsize = crypto_aead_ivsize(aead);
u32 *desc = edesc->hw_desc;
bool generic_gcm = (ivsize == GCM_AES_IV_SIZE);
unsigned int last;
init_aead_job(req, edesc, all_contig, encrypt);
append_math_add_imm_u32(desc, REG3, ZERO, IMM, req->assoclen);
/* BUG This should not be specific to generic GCM. */
last = 0;
if (encrypt && generic_gcm && !(req->assoclen + req->cryptlen))
last = FIFOLD_TYPE_LAST1;
/* Read GCM IV */
append_cmd(desc, CMD_FIFO_LOAD | FIFOLD_CLASS_CLASS1 | IMMEDIATE |
FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1 | GCM_AES_IV_SIZE | last);
/* Append Salt */
if (!generic_gcm)
append_data(desc, ctx->key + ctx->cdata.keylen, 4);
/* Append IV */
append_data(desc, req->iv, ivsize);
/* End of blank commands */
}
static void init_chachapoly_job(struct aead_request *req,
struct aead_edesc *edesc, bool all_contig,
bool encrypt)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
unsigned int ivsize = crypto_aead_ivsize(aead);
unsigned int assoclen = req->assoclen;
u32 *desc = edesc->hw_desc;
u32 ctx_iv_off = 4;
init_aead_job(req, edesc, all_contig, encrypt);
if (ivsize != CHACHAPOLY_IV_SIZE) {
/* IPsec specific: CONTEXT1[223:128] = {NONCE, IV} */
ctx_iv_off += 4;
/*
* The associated data comes already with the IV but we need
* to skip it when we authenticate or encrypt...
*/
assoclen -= ivsize;
}
append_math_add_imm_u32(desc, REG3, ZERO, IMM, assoclen);
/*
* For IPsec load the IV further in the same register.
* For RFC7539 simply load the 12 bytes nonce in a single operation
*/
append_load_as_imm(desc, req->iv, ivsize, LDST_CLASS_1_CCB |
LDST_SRCDST_BYTE_CONTEXT |
ctx_iv_off << LDST_OFFSET_SHIFT);
}
static void init_authenc_job(struct aead_request *req,
struct aead_edesc *edesc,
bool all_contig, bool encrypt)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_aead_alg *alg = container_of(crypto_aead_alg(aead),
struct caam_aead_alg, aead);
unsigned int ivsize = crypto_aead_ivsize(aead);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctx->jrdev->parent);
const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) ==
OP_ALG_AAI_CTR_MOD128);
const bool is_rfc3686 = alg->caam.rfc3686;
u32 *desc = edesc->hw_desc;
u32 ivoffset = 0;
/*
* AES-CTR needs to load IV in CONTEXT1 reg
* at an offset of 128bits (16bytes)
* CONTEXT1[255:128] = IV
*/
if (ctr_mode)
ivoffset = 16;
/*
* RFC3686 specific:
* CONTEXT1[255:128] = {NONCE, IV, COUNTER}
*/
if (is_rfc3686)
ivoffset = 16 + CTR_RFC3686_NONCE_SIZE;
init_aead_job(req, edesc, all_contig, encrypt);
/*
* {REG3, DPOVRD} = assoclen, depending on whether MATH command supports
* having DPOVRD as destination.
*/
if (ctrlpriv->era < 3)
append_math_add_imm_u32(desc, REG3, ZERO, IMM, req->assoclen);
else
append_math_add_imm_u32(desc, DPOVRD, ZERO, IMM, req->assoclen);
if (ivsize && ((is_rfc3686 && encrypt) || !alg->caam.geniv))
append_load_as_imm(desc, req->iv, ivsize,
LDST_CLASS_1_CCB |
LDST_SRCDST_BYTE_CONTEXT |
(ivoffset << LDST_OFFSET_SHIFT));
}
/*
* Fill in skcipher job descriptor
*/
static void init_skcipher_job(struct skcipher_request *req,
struct skcipher_edesc *edesc,
const bool encrypt)
{
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
struct device *jrdev = ctx->jrdev;
int ivsize = crypto_skcipher_ivsize(skcipher);
u32 *desc = edesc->hw_desc;
u32 *sh_desc;
u32 in_options = 0, out_options = 0;
dma_addr_t src_dma, dst_dma, ptr;
int len, sec4_sg_index = 0;
print_hex_dump_debug("presciv@"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv, ivsize, 1);
dev_dbg(jrdev, "asked=%d, cryptlen%d\n",
(int)edesc->src_nents > 1 ? 100 : req->cryptlen, req->cryptlen);
caam_dump_sg("src @" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->src,
edesc->src_nents > 1 ? 100 : req->cryptlen, 1);
sh_desc = encrypt ? ctx->sh_desc_enc : ctx->sh_desc_dec;
ptr = encrypt ? ctx->sh_desc_enc_dma : ctx->sh_desc_dec_dma;
len = desc_len(sh_desc);
init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE);
if (ivsize || edesc->mapped_src_nents > 1) {
src_dma = edesc->sec4_sg_dma;
sec4_sg_index = edesc->mapped_src_nents + !!ivsize;
in_options = LDST_SGF;
} else {
src_dma = sg_dma_address(req->src);
}
append_seq_in_ptr(desc, src_dma, req->cryptlen + ivsize, in_options);
if (likely(req->src == req->dst)) {
dst_dma = src_dma + !!ivsize * sizeof(struct sec4_sg_entry);
out_options = in_options;
} else if (!ivsize && edesc->mapped_dst_nents == 1) {
dst_dma = sg_dma_address(req->dst);
} else {
dst_dma = edesc->sec4_sg_dma + sec4_sg_index *
sizeof(struct sec4_sg_entry);
out_options = LDST_SGF;
}
append_seq_out_ptr(desc, dst_dma, req->cryptlen + ivsize, out_options);
}
/*
* allocate and map the aead extended descriptor
*/
static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
int desc_bytes, bool *all_contig_ptr,
bool encrypt)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC;
int src_nents, mapped_src_nents, dst_nents = 0, mapped_dst_nents = 0;
int src_len, dst_len = 0;
struct aead_edesc *edesc;
int sec4_sg_index, sec4_sg_len, sec4_sg_bytes;
crypto: caam - fix aead sglen for case 'dst != src' For aead case when source and destination buffers are different, there is an incorrect assumption that the source length includes the ICV length. Fix this, since it leads to an oops when using sg_count() to find the number of nents in the scatterlist: Unable to handle kernel paging request for data at address 0x00000004 Faulting instruction address: 0xf91f7634 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=8 P4080 DS Modules linked in: caamalg(+) caam_jr caam CPU: 1 PID: 1053 Comm: cryptomgr_test Not tainted 3.11.0 #16 task: eeb24ab0 ti: eeafa000 task.ti: eeafa000 NIP: f91f7634 LR: f91f7f24 CTR: f91f7ef0 REGS: eeafbbc0 TRAP: 0300 Not tainted (3.11.0) MSR: 00029002 <CE,EE,ME> CR: 44044044 XER: 00000000 DEAR: 00000004, ESR: 00000000 GPR00: f91f7f24 eeafbc70 eeb24ab0 00000002 ee8e0900 ee8e0800 00000024 c45c4462 GPR08: 00000010 00000000 00000014 0c0e4000 24044044 00000000 00000000 c0691590 GPR16: eeab0000 eeb23000 00000000 00000000 00000000 00000001 00000001 eeafbcc8 GPR24: 000000d1 00000010 ee2d5000 ee49ea10 ee49ea10 ee46f640 ee46f640 c0691590 NIP [f91f7634] aead_edesc_alloc.constprop.14+0x144/0x780 [caamalg] LR [f91f7f24] aead_encrypt+0x34/0x288 [caamalg] Call Trace: [eeafbc70] [a1004000] 0xa1004000 (unreliable) [eeafbcc0] [f91f7f24] aead_encrypt+0x34/0x288 [caamalg] [eeafbcf0] [c020d77c] __test_aead+0x3ec/0xe20 [eeafbe20] [c020f35c] test_aead+0x6c/0xe0 [eeafbe40] [c020f420] alg_test_aead+0x50/0xd0 [eeafbe60] [c020e5e4] alg_test+0x114/0x2e0 [eeafbee0] [c020bd1c] cryptomgr_test+0x4c/0x60 [eeafbef0] [c0047058] kthread+0xa8/0xb0 [eeafbf40] [c000eb0c] ret_from_kernel_thread+0x5c/0x64 Instruction dump: 69084321 7d080034 5508d97e 69080001 0f080000 81290024 552807fe 0f080000 3a600001 5529003a 2f8a0000 40dd0028 <80e90004> 3ab50001 8109000c 70e30002 ---[ end trace b3c3e23925c7484e ]--- While here, add a tcrypt mode for making it easy to test authenc (needed for triggering case above). Signed-off-by: Horia Geanta <horia.geanta@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-11-28 13:11:16 +00:00
unsigned int authsize = ctx->authsize;
crypto: caam - fix aead sglen for case 'dst != src' For aead case when source and destination buffers are different, there is an incorrect assumption that the source length includes the ICV length. Fix this, since it leads to an oops when using sg_count() to find the number of nents in the scatterlist: Unable to handle kernel paging request for data at address 0x00000004 Faulting instruction address: 0xf91f7634 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=8 P4080 DS Modules linked in: caamalg(+) caam_jr caam CPU: 1 PID: 1053 Comm: cryptomgr_test Not tainted 3.11.0 #16 task: eeb24ab0 ti: eeafa000 task.ti: eeafa000 NIP: f91f7634 LR: f91f7f24 CTR: f91f7ef0 REGS: eeafbbc0 TRAP: 0300 Not tainted (3.11.0) MSR: 00029002 <CE,EE,ME> CR: 44044044 XER: 00000000 DEAR: 00000004, ESR: 00000000 GPR00: f91f7f24 eeafbc70 eeb24ab0 00000002 ee8e0900 ee8e0800 00000024 c45c4462 GPR08: 00000010 00000000 00000014 0c0e4000 24044044 00000000 00000000 c0691590 GPR16: eeab0000 eeb23000 00000000 00000000 00000000 00000001 00000001 eeafbcc8 GPR24: 000000d1 00000010 ee2d5000 ee49ea10 ee49ea10 ee46f640 ee46f640 c0691590 NIP [f91f7634] aead_edesc_alloc.constprop.14+0x144/0x780 [caamalg] LR [f91f7f24] aead_encrypt+0x34/0x288 [caamalg] Call Trace: [eeafbc70] [a1004000] 0xa1004000 (unreliable) [eeafbcc0] [f91f7f24] aead_encrypt+0x34/0x288 [caamalg] [eeafbcf0] [c020d77c] __test_aead+0x3ec/0xe20 [eeafbe20] [c020f35c] test_aead+0x6c/0xe0 [eeafbe40] [c020f420] alg_test_aead+0x50/0xd0 [eeafbe60] [c020e5e4] alg_test+0x114/0x2e0 [eeafbee0] [c020bd1c] cryptomgr_test+0x4c/0x60 [eeafbef0] [c0047058] kthread+0xa8/0xb0 [eeafbf40] [c000eb0c] ret_from_kernel_thread+0x5c/0x64 Instruction dump: 69084321 7d080034 5508d97e 69080001 0f080000 81290024 552807fe 0f080000 3a600001 5529003a 2f8a0000 40dd0028 <80e90004> 3ab50001 8109000c 70e30002 ---[ end trace b3c3e23925c7484e ]--- While here, add a tcrypt mode for making it easy to test authenc (needed for triggering case above). Signed-off-by: Horia Geanta <horia.geanta@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-11-28 13:11:16 +00:00
if (unlikely(req->dst != req->src)) {
src_len = req->assoclen + req->cryptlen;
dst_len = src_len + (encrypt ? authsize : (-authsize));
src_nents = sg_nents_for_len(req->src, src_len);
if (unlikely(src_nents < 0)) {
dev_err(jrdev, "Insufficient bytes (%d) in src S/G\n",
src_len);
return ERR_PTR(src_nents);
}
dst_nents = sg_nents_for_len(req->dst, dst_len);
if (unlikely(dst_nents < 0)) {
dev_err(jrdev, "Insufficient bytes (%d) in dst S/G\n",
dst_len);
return ERR_PTR(dst_nents);
}
crypto: caam - fix aead sglen for case 'dst != src' For aead case when source and destination buffers are different, there is an incorrect assumption that the source length includes the ICV length. Fix this, since it leads to an oops when using sg_count() to find the number of nents in the scatterlist: Unable to handle kernel paging request for data at address 0x00000004 Faulting instruction address: 0xf91f7634 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=8 P4080 DS Modules linked in: caamalg(+) caam_jr caam CPU: 1 PID: 1053 Comm: cryptomgr_test Not tainted 3.11.0 #16 task: eeb24ab0 ti: eeafa000 task.ti: eeafa000 NIP: f91f7634 LR: f91f7f24 CTR: f91f7ef0 REGS: eeafbbc0 TRAP: 0300 Not tainted (3.11.0) MSR: 00029002 <CE,EE,ME> CR: 44044044 XER: 00000000 DEAR: 00000004, ESR: 00000000 GPR00: f91f7f24 eeafbc70 eeb24ab0 00000002 ee8e0900 ee8e0800 00000024 c45c4462 GPR08: 00000010 00000000 00000014 0c0e4000 24044044 00000000 00000000 c0691590 GPR16: eeab0000 eeb23000 00000000 00000000 00000000 00000001 00000001 eeafbcc8 GPR24: 000000d1 00000010 ee2d5000 ee49ea10 ee49ea10 ee46f640 ee46f640 c0691590 NIP [f91f7634] aead_edesc_alloc.constprop.14+0x144/0x780 [caamalg] LR [f91f7f24] aead_encrypt+0x34/0x288 [caamalg] Call Trace: [eeafbc70] [a1004000] 0xa1004000 (unreliable) [eeafbcc0] [f91f7f24] aead_encrypt+0x34/0x288 [caamalg] [eeafbcf0] [c020d77c] __test_aead+0x3ec/0xe20 [eeafbe20] [c020f35c] test_aead+0x6c/0xe0 [eeafbe40] [c020f420] alg_test_aead+0x50/0xd0 [eeafbe60] [c020e5e4] alg_test+0x114/0x2e0 [eeafbee0] [c020bd1c] cryptomgr_test+0x4c/0x60 [eeafbef0] [c0047058] kthread+0xa8/0xb0 [eeafbf40] [c000eb0c] ret_from_kernel_thread+0x5c/0x64 Instruction dump: 69084321 7d080034 5508d97e 69080001 0f080000 81290024 552807fe 0f080000 3a600001 5529003a 2f8a0000 40dd0028 <80e90004> 3ab50001 8109000c 70e30002 ---[ end trace b3c3e23925c7484e ]--- While here, add a tcrypt mode for making it easy to test authenc (needed for triggering case above). Signed-off-by: Horia Geanta <horia.geanta@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-11-28 13:11:16 +00:00
} else {
src_len = req->assoclen + req->cryptlen +
(encrypt ? authsize : 0);
src_nents = sg_nents_for_len(req->src, src_len);
if (unlikely(src_nents < 0)) {
dev_err(jrdev, "Insufficient bytes (%d) in src S/G\n",
src_len);
return ERR_PTR(src_nents);
}
}
if (likely(req->src == req->dst)) {
mapped_src_nents = dma_map_sg(jrdev, req->src, src_nents,
DMA_BIDIRECTIONAL);
if (unlikely(!mapped_src_nents)) {
dev_err(jrdev, "unable to map source\n");
return ERR_PTR(-ENOMEM);
}
} else {
/* Cover also the case of null (zero length) input data */
if (src_nents) {
mapped_src_nents = dma_map_sg(jrdev, req->src,
src_nents, DMA_TO_DEVICE);
if (unlikely(!mapped_src_nents)) {
dev_err(jrdev, "unable to map source\n");
return ERR_PTR(-ENOMEM);
}
} else {
mapped_src_nents = 0;
}
/* Cover also the case of null (zero length) output data */
if (dst_nents) {
mapped_dst_nents = dma_map_sg(jrdev, req->dst,
dst_nents,
DMA_FROM_DEVICE);
if (unlikely(!mapped_dst_nents)) {
dev_err(jrdev, "unable to map destination\n");
dma_unmap_sg(jrdev, req->src, src_nents,
DMA_TO_DEVICE);
return ERR_PTR(-ENOMEM);
}
} else {
mapped_dst_nents = 0;
}
}
/*
* HW reads 4 S/G entries at a time; make sure the reads don't go beyond
* the end of the table by allocating more S/G entries.
*/
sec4_sg_len = mapped_src_nents > 1 ? mapped_src_nents : 0;
if (mapped_dst_nents > 1)
sec4_sg_len += pad_sg_nents(mapped_dst_nents);
else
sec4_sg_len = pad_sg_nents(sec4_sg_len);
sec4_sg_bytes = sec4_sg_len * sizeof(struct sec4_sg_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = kzalloc(sizeof(*edesc) + desc_bytes + sec4_sg_bytes,
GFP_DMA | flags);
if (!edesc) {
caam_unmap(jrdev, req->src, req->dst, src_nents, dst_nents, 0,
0, 0, 0);
return ERR_PTR(-ENOMEM);
}
edesc->src_nents = src_nents;
edesc->dst_nents = dst_nents;
edesc->mapped_src_nents = mapped_src_nents;
edesc->mapped_dst_nents = mapped_dst_nents;
edesc->sec4_sg = (void *)edesc + sizeof(struct aead_edesc) +
desc_bytes;
*all_contig_ptr = !(mapped_src_nents > 1);
sec4_sg_index = 0;
if (mapped_src_nents > 1) {
sg_to_sec4_sg_last(req->src, src_len,
edesc->sec4_sg + sec4_sg_index, 0);
sec4_sg_index += mapped_src_nents;
}
if (mapped_dst_nents > 1) {
sg_to_sec4_sg_last(req->dst, dst_len,
edesc->sec4_sg + sec4_sg_index, 0);
}
if (!sec4_sg_bytes)
return edesc;
edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
sec4_sg_bytes, DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
dev_err(jrdev, "unable to map S/G table\n");
aead_unmap(jrdev, edesc, req);
kfree(edesc);
return ERR_PTR(-ENOMEM);
}
edesc->sec4_sg_bytes = sec4_sg_bytes;
return edesc;
}
static int gcm_encrypt(struct aead_request *req)
{
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
bool all_contig;
u32 *desc;
int ret = 0;
/* allocate extended descriptor */
edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig, true);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* Create and submit job descriptor */
init_gcm_job(req, edesc, all_contig, true);
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
static int chachapoly_encrypt(struct aead_request *req)
{
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
bool all_contig;
u32 *desc;
int ret;
edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig,
true);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
desc = edesc->hw_desc;
init_chachapoly_job(req, edesc, all_contig, true);
print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
1);
ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
static int chachapoly_decrypt(struct aead_request *req)
{
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
bool all_contig;
u32 *desc;
int ret;
edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig,
false);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
desc = edesc->hw_desc;
init_chachapoly_job(req, edesc, all_contig, false);
print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
1);
ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
static int ipsec_gcm_encrypt(struct aead_request *req)
{
return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_encrypt(req);
}
static int aead_encrypt(struct aead_request *req)
{
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
bool all_contig;
u32 *desc;
int ret = 0;
/* allocate extended descriptor */
edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN,
&all_contig, true);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* Create and submit job descriptor */
init_authenc_job(req, edesc, all_contig, true);
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
static int gcm_decrypt(struct aead_request *req)
{
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
bool all_contig;
u32 *desc;
int ret = 0;
/* allocate extended descriptor */
edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig, false);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* Create and submit job descriptor*/
init_gcm_job(req, edesc, all_contig, false);
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
static int ipsec_gcm_decrypt(struct aead_request *req)
{
return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_decrypt(req);
}
static int aead_decrypt(struct aead_request *req)
{
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
bool all_contig;
u32 *desc;
int ret = 0;
caam_dump_sg("dec src@" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->src,
req->assoclen + req->cryptlen, 1);
/* allocate extended descriptor */
edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN,
&all_contig, false);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* Create and submit job descriptor*/
init_authenc_job(req, edesc, all_contig, false);
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
/*
* allocate and map the skcipher extended descriptor for skcipher
*/
static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req,
int desc_bytes)
{
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
struct device *jrdev = ctx->jrdev;
gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC;
int src_nents, mapped_src_nents, dst_nents = 0, mapped_dst_nents = 0;
struct skcipher_edesc *edesc;
dma_addr_t iv_dma = 0;
u8 *iv;
int ivsize = crypto_skcipher_ivsize(skcipher);
int dst_sg_idx, sec4_sg_ents, sec4_sg_bytes;
src_nents = sg_nents_for_len(req->src, req->cryptlen);
if (unlikely(src_nents < 0)) {
dev_err(jrdev, "Insufficient bytes (%d) in src S/G\n",
req->cryptlen);
return ERR_PTR(src_nents);
}
if (req->dst != req->src) {
dst_nents = sg_nents_for_len(req->dst, req->cryptlen);
if (unlikely(dst_nents < 0)) {
dev_err(jrdev, "Insufficient bytes (%d) in dst S/G\n",
req->cryptlen);
return ERR_PTR(dst_nents);
}
}
if (likely(req->src == req->dst)) {
mapped_src_nents = dma_map_sg(jrdev, req->src, src_nents,
DMA_BIDIRECTIONAL);
if (unlikely(!mapped_src_nents)) {
dev_err(jrdev, "unable to map source\n");
return ERR_PTR(-ENOMEM);
}
} else {
mapped_src_nents = dma_map_sg(jrdev, req->src, src_nents,
DMA_TO_DEVICE);
if (unlikely(!mapped_src_nents)) {
dev_err(jrdev, "unable to map source\n");
return ERR_PTR(-ENOMEM);
}
mapped_dst_nents = dma_map_sg(jrdev, req->dst, dst_nents,
DMA_FROM_DEVICE);
if (unlikely(!mapped_dst_nents)) {
dev_err(jrdev, "unable to map destination\n");
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return ERR_PTR(-ENOMEM);
}
}
if (!ivsize && mapped_src_nents == 1)
sec4_sg_ents = 0; // no need for an input hw s/g table
else
sec4_sg_ents = mapped_src_nents + !!ivsize;
dst_sg_idx = sec4_sg_ents;
/*
* Input, output HW S/G tables: [IV, src][dst, IV]
* IV entries point to the same buffer
* If src == dst, S/G entries are reused (S/G tables overlap)
*
* HW reads 4 S/G entries at a time; make sure the reads don't go beyond
* the end of the table by allocating more S/G entries. Logic:
* if (output S/G)
* pad output S/G, if needed
* else if (input S/G) ...
* pad input S/G, if needed
*/
if (ivsize || mapped_dst_nents > 1) {
if (req->src == req->dst)
sec4_sg_ents = !!ivsize + pad_sg_nents(sec4_sg_ents);
else
sec4_sg_ents += pad_sg_nents(mapped_dst_nents +
!!ivsize);
} else {
sec4_sg_ents = pad_sg_nents(sec4_sg_ents);
}
sec4_sg_bytes = sec4_sg_ents * sizeof(struct sec4_sg_entry);
/*
* allocate space for base edesc and hw desc commands, link tables, IV
*/
edesc = kzalloc(sizeof(*edesc) + desc_bytes + sec4_sg_bytes + ivsize,
GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
caam_unmap(jrdev, req->src, req->dst, src_nents, dst_nents, 0,
0, 0, 0);
return ERR_PTR(-ENOMEM);
}
edesc->src_nents = src_nents;
edesc->dst_nents = dst_nents;
edesc->mapped_src_nents = mapped_src_nents;
edesc->mapped_dst_nents = mapped_dst_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (struct sec4_sg_entry *)((u8 *)edesc->hw_desc +
desc_bytes);
/* Make sure IV is located in a DMAable area */
if (ivsize) {
iv = (u8 *)edesc->sec4_sg + sec4_sg_bytes;
memcpy(iv, req->iv, ivsize);
iv_dma = dma_map_single(jrdev, iv, ivsize, DMA_BIDIRECTIONAL);
if (dma_mapping_error(jrdev, iv_dma)) {
dev_err(jrdev, "unable to map IV\n");
caam_unmap(jrdev, req->src, req->dst, src_nents,
dst_nents, 0, 0, 0, 0);
kfree(edesc);
return ERR_PTR(-ENOMEM);
}
dma_to_sec4_sg_one(edesc->sec4_sg, iv_dma, ivsize, 0);
}
if (dst_sg_idx)
sg_to_sec4_sg(req->src, req->cryptlen, edesc->sec4_sg +
!!ivsize, 0);
if (req->src != req->dst && (ivsize || mapped_dst_nents > 1))
sg_to_sec4_sg(req->dst, req->cryptlen, edesc->sec4_sg +
dst_sg_idx, 0);
if (ivsize)
dma_to_sec4_sg_one(edesc->sec4_sg + dst_sg_idx +
mapped_dst_nents, iv_dma, ivsize, 0);
if (ivsize || mapped_dst_nents > 1)
sg_to_sec4_set_last(edesc->sec4_sg + dst_sg_idx +
mapped_dst_nents);
if (sec4_sg_bytes) {
edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,
sec4_sg_bytes,
DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) {
dev_err(jrdev, "unable to map S/G table\n");
caam_unmap(jrdev, req->src, req->dst, src_nents,
dst_nents, iv_dma, ivsize, 0, 0);
kfree(edesc);
return ERR_PTR(-ENOMEM);
}
}
edesc->iv_dma = iv_dma;
print_hex_dump_debug("skcipher sec4_sg@" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->sec4_sg,
sec4_sg_bytes, 1);
return edesc;
}
static int skcipher_encrypt(struct skcipher_request *req)
{
struct skcipher_edesc *edesc;
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
struct device *jrdev = ctx->jrdev;
u32 *desc;
int ret = 0;
if (!req->cryptlen)
return 0;
/* allocate extended descriptor */
edesc = skcipher_edesc_alloc(req, DESC_JOB_IO_LEN * CAAM_CMD_SZ);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* Create and submit job descriptor*/
init_skcipher_job(req, edesc, true);
print_hex_dump_debug("skcipher jobdesc@" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, skcipher_encrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
skcipher_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
static int skcipher_decrypt(struct skcipher_request *req)
{
struct skcipher_edesc *edesc;
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
struct device *jrdev = ctx->jrdev;
u32 *desc;
int ret = 0;
if (!req->cryptlen)
return 0;
/* allocate extended descriptor */
edesc = skcipher_edesc_alloc(req, DESC_JOB_IO_LEN * CAAM_CMD_SZ);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* Create and submit job descriptor*/
init_skcipher_job(req, edesc, false);
desc = edesc->hw_desc;
print_hex_dump_debug("skcipher jobdesc@" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
ret = caam_jr_enqueue(jrdev, desc, skcipher_decrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
skcipher_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
static struct caam_skcipher_alg driver_algs[] = {
{
.skcipher = {
.base = {
.cra_name = "cbc(aes)",
.cra_driver_name = "cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aes_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
},
{
.skcipher = {
.base = {
.cra_name = "cbc(des3_ede)",
.cra_driver_name = "cbc-3des-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = DES3_EDE_KEY_SIZE,
.max_keysize = DES3_EDE_KEY_SIZE,
.ivsize = DES3_EDE_BLOCK_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
},
{
.skcipher = {
.base = {
.cra_name = "cbc(des)",
.cra_driver_name = "cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = des_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.ivsize = DES_BLOCK_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
},
{
.skcipher = {
.base = {
.cra_name = "ctr(aes)",
.cra_driver_name = "ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = ctr_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.chunksize = AES_BLOCK_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
},
{
.skcipher = {
.base = {
.cra_name = "rfc3686(ctr(aes))",
.cra_driver_name = "rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = rfc3686_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = AES_MIN_KEY_SIZE +
CTR_RFC3686_NONCE_SIZE,
.max_keysize = AES_MAX_KEY_SIZE +
CTR_RFC3686_NONCE_SIZE,
.ivsize = CTR_RFC3686_IV_SIZE,
.chunksize = AES_BLOCK_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.rfc3686 = true,
},
},
{
.skcipher = {
.base = {
.cra_name = "xts(aes)",
.cra_driver_name = "xts-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = xts_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_XTS,
},
{
.skcipher = {
.base = {
.cra_name = "ecb(des)",
.cra_driver_name = "ecb-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = des_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_ECB,
},
{
.skcipher = {
.base = {
.cra_name = "ecb(aes)",
.cra_driver_name = "ecb-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aes_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_ECB,
},
{
.skcipher = {
.base = {
.cra_name = "ecb(des3_ede)",
.cra_driver_name = "ecb-des3-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = DES3_EDE_KEY_SIZE,
.max_keysize = DES3_EDE_KEY_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_ECB,
},
{
.skcipher = {
.base = {
.cra_name = "ecb(arc4)",
.cra_driver_name = "ecb-arc4-caam",
.cra_blocksize = ARC4_BLOCK_SIZE,
},
.setkey = arc4_skcipher_setkey,
.encrypt = skcipher_encrypt,
.decrypt = skcipher_decrypt,
.min_keysize = ARC4_MIN_KEY_SIZE,
.max_keysize = ARC4_MAX_KEY_SIZE,
},
.caam.class1_alg_type = OP_ALG_ALGSEL_ARC4 | OP_ALG_AAI_ECB,
},
};
static struct caam_aead_alg driver_aeads[] = {
{
.aead = {
.base = {
.cra_name = "rfc4106(gcm(aes))",
.cra_driver_name = "rfc4106-gcm-aes-caam",
.cra_blocksize = 1,
},
.setkey = rfc4106_setkey,
.setauthsize = rfc4106_setauthsize,
.encrypt = ipsec_gcm_encrypt,
.decrypt = ipsec_gcm_decrypt,
.ivsize = GCM_RFC4106_IV_SIZE,
.maxauthsize = AES_BLOCK_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM,
.nodkp = true,
},
},
{
.aead = {
.base = {
.cra_name = "rfc4543(gcm(aes))",
.cra_driver_name = "rfc4543-gcm-aes-caam",
.cra_blocksize = 1,
},
.setkey = rfc4543_setkey,
.setauthsize = rfc4543_setauthsize,
.encrypt = ipsec_gcm_encrypt,
.decrypt = ipsec_gcm_decrypt,
.ivsize = GCM_RFC4543_IV_SIZE,
.maxauthsize = AES_BLOCK_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM,
.nodkp = true,
},
},
/* Galois Counter Mode */
{
.aead = {
.base = {
.cra_name = "gcm(aes)",
.cra_driver_name = "gcm-aes-caam",
.cra_blocksize = 1,
},
.setkey = gcm_setkey,
.setauthsize = gcm_setauthsize,
.encrypt = gcm_encrypt,
.decrypt = gcm_decrypt,
.ivsize = GCM_AES_IV_SIZE,
.maxauthsize = AES_BLOCK_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM,
.nodkp = true,
},
},
/* single-pass ipsec_esp descriptor */
{
.aead = {
.base = {
.cra_name = "authenc(hmac(md5),"
"ecb(cipher_null))",
.cra_driver_name = "authenc-hmac-md5-"
"ecb-cipher_null-caam",
.cra_blocksize = NULL_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = NULL_IV_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha1),"
"ecb(cipher_null))",
.cra_driver_name = "authenc-hmac-sha1-"
"ecb-cipher_null-caam",
.cra_blocksize = NULL_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = NULL_IV_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha224),"
"ecb(cipher_null))",
.cra_driver_name = "authenc-hmac-sha224-"
"ecb-cipher_null-caam",
.cra_blocksize = NULL_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = NULL_IV_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha256),"
"ecb(cipher_null))",
.cra_driver_name = "authenc-hmac-sha256-"
"ecb-cipher_null-caam",
.cra_blocksize = NULL_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = NULL_IV_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha384),"
"ecb(cipher_null))",
.cra_driver_name = "authenc-hmac-sha384-"
"ecb-cipher_null-caam",
.cra_blocksize = NULL_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = NULL_IV_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha512),"
"ecb(cipher_null))",
.cra_driver_name = "authenc-hmac-sha512-"
"ecb-cipher_null-caam",
.cra_blocksize = NULL_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = NULL_IV_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(md5),cbc(aes))",
.cra_driver_name = "authenc-hmac-md5-"
"cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(md5),"
"cbc(aes)))",
.cra_driver_name = "echainiv-authenc-hmac-md5-"
"cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha1),cbc(aes))",
.cra_driver_name = "authenc-hmac-sha1-"
"cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha1),"
"cbc(aes)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha1-cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha224),cbc(aes))",
.cra_driver_name = "authenc-hmac-sha224-"
"cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha224),"
"cbc(aes)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha224-cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha256),cbc(aes))",
.cra_driver_name = "authenc-hmac-sha256-"
"cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha256),"
"cbc(aes)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha256-cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha384),cbc(aes))",
.cra_driver_name = "authenc-hmac-sha384-"
"cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha384),"
"cbc(aes)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha384-cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha512),cbc(aes))",
.cra_driver_name = "authenc-hmac-sha512-"
"cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha512),"
"cbc(aes)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha512-cbc-aes-caam",
.cra_blocksize = AES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(md5),cbc(des3_ede))",
.cra_driver_name = "authenc-hmac-md5-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
}
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(md5),"
"cbc(des3_ede)))",
.cra_driver_name = "echainiv-authenc-hmac-md5-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
}
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha1),"
"cbc(des3_ede))",
.cra_driver_name = "authenc-hmac-sha1-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha1),"
"cbc(des3_ede)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha1-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha224),"
"cbc(des3_ede))",
.cra_driver_name = "authenc-hmac-sha224-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha224),"
"cbc(des3_ede)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha224-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha256),"
"cbc(des3_ede))",
.cra_driver_name = "authenc-hmac-sha256-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha256),"
"cbc(des3_ede)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha256-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha384),"
"cbc(des3_ede))",
.cra_driver_name = "authenc-hmac-sha384-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha384),"
"cbc(des3_ede)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha384-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha512),"
"cbc(des3_ede))",
.cra_driver_name = "authenc-hmac-sha512-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha512),"
"cbc(des3_ede)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha512-"
"cbc-des3_ede-caam",
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
},
.setkey = des3_aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(md5),cbc(des))",
.cra_driver_name = "authenc-hmac-md5-"
"cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(md5),"
"cbc(des)))",
.cra_driver_name = "echainiv-authenc-hmac-md5-"
"cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha1),cbc(des))",
.cra_driver_name = "authenc-hmac-sha1-"
"cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha1),"
"cbc(des)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha1-cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha224),cbc(des))",
.cra_driver_name = "authenc-hmac-sha224-"
"cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha224),"
"cbc(des)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha224-cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha256),cbc(des))",
.cra_driver_name = "authenc-hmac-sha256-"
"cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha256),"
"cbc(des)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha256-cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha384),cbc(des))",
.cra_driver_name = "authenc-hmac-sha384-"
"cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha384),"
"cbc(des)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha384-cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha512),cbc(des))",
.cra_driver_name = "authenc-hmac-sha512-"
"cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
},
},
{
.aead = {
.base = {
.cra_name = "echainiv(authenc(hmac(sha512),"
"cbc(des)))",
.cra_driver_name = "echainiv-authenc-"
"hmac-sha512-cbc-des-caam",
.cra_blocksize = DES_BLOCK_SIZE,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(md5),"
"rfc3686(ctr(aes)))",
.cra_driver_name = "authenc-hmac-md5-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
},
},
{
.aead = {
.base = {
.cra_name = "seqiv(authenc("
"hmac(md5),rfc3686(ctr(aes))))",
.cra_driver_name = "seqiv-authenc-hmac-md5-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_MD5 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha1),"
"rfc3686(ctr(aes)))",
.cra_driver_name = "authenc-hmac-sha1-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
},
},
{
.aead = {
.base = {
.cra_name = "seqiv(authenc("
"hmac(sha1),rfc3686(ctr(aes))))",
.cra_driver_name = "seqiv-authenc-hmac-sha1-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA1 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha224),"
"rfc3686(ctr(aes)))",
.cra_driver_name = "authenc-hmac-sha224-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
},
},
{
.aead = {
.base = {
.cra_name = "seqiv(authenc("
"hmac(sha224),rfc3686(ctr(aes))))",
.cra_driver_name = "seqiv-authenc-hmac-sha224-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA224 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha256),"
"rfc3686(ctr(aes)))",
.cra_driver_name = "authenc-hmac-sha256-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
},
},
{
.aead = {
.base = {
.cra_name = "seqiv(authenc(hmac(sha256),"
"rfc3686(ctr(aes))))",
.cra_driver_name = "seqiv-authenc-hmac-sha256-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA256 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha384),"
"rfc3686(ctr(aes)))",
.cra_driver_name = "authenc-hmac-sha384-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
},
},
{
.aead = {
.base = {
.cra_name = "seqiv(authenc(hmac(sha384),"
"rfc3686(ctr(aes))))",
.cra_driver_name = "seqiv-authenc-hmac-sha384-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA384 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "authenc(hmac(sha512),"
"rfc3686(ctr(aes)))",
.cra_driver_name = "authenc-hmac-sha512-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
},
},
{
.aead = {
.base = {
.cra_name = "seqiv(authenc(hmac(sha512),"
"rfc3686(ctr(aes))))",
.cra_driver_name = "seqiv-authenc-hmac-sha512-"
"rfc3686-ctr-aes-caam",
.cra_blocksize = 1,
},
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.ivsize = CTR_RFC3686_IV_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_AES |
OP_ALG_AAI_CTR_MOD128,
.class2_alg_type = OP_ALG_ALGSEL_SHA512 |
OP_ALG_AAI_HMAC_PRECOMP,
.rfc3686 = true,
.geniv = true,
},
},
{
.aead = {
.base = {
.cra_name = "rfc7539(chacha20,poly1305)",
.cra_driver_name = "rfc7539-chacha20-poly1305-"
"caam",
.cra_blocksize = 1,
},
.setkey = chachapoly_setkey,
.setauthsize = chachapoly_setauthsize,
.encrypt = chachapoly_encrypt,
.decrypt = chachapoly_decrypt,
.ivsize = CHACHAPOLY_IV_SIZE,
.maxauthsize = POLY1305_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_CHACHA20 |
OP_ALG_AAI_AEAD,
.class2_alg_type = OP_ALG_ALGSEL_POLY1305 |
OP_ALG_AAI_AEAD,
.nodkp = true,
},
},
{
.aead = {
.base = {
.cra_name = "rfc7539esp(chacha20,poly1305)",
.cra_driver_name = "rfc7539esp-chacha20-"
"poly1305-caam",
.cra_blocksize = 1,
},
.setkey = chachapoly_setkey,
.setauthsize = chachapoly_setauthsize,
.encrypt = chachapoly_encrypt,
.decrypt = chachapoly_decrypt,
.ivsize = 8,
.maxauthsize = POLY1305_DIGEST_SIZE,
},
.caam = {
.class1_alg_type = OP_ALG_ALGSEL_CHACHA20 |
OP_ALG_AAI_AEAD,
.class2_alg_type = OP_ALG_ALGSEL_POLY1305 |
OP_ALG_AAI_AEAD,
.nodkp = true,
},
},
};
static int caam_init_common(struct caam_ctx *ctx, struct caam_alg_entry *caam,
bool uses_dkp)
{
dma_addr_t dma_addr;
struct caam_drv_private *priv;
ctx->jrdev = caam_jr_alloc();
if (IS_ERR(ctx->jrdev)) {
pr_err("Job Ring Device allocation for transform failed\n");
return PTR_ERR(ctx->jrdev);
}
priv = dev_get_drvdata(ctx->jrdev->parent);
if (priv->era >= 6 && uses_dkp)
ctx->dir = DMA_BIDIRECTIONAL;
else
ctx->dir = DMA_TO_DEVICE;
dma_addr = dma_map_single_attrs(ctx->jrdev, ctx->sh_desc_enc,
offsetof(struct caam_ctx,
sh_desc_enc_dma),
ctx->dir, DMA_ATTR_SKIP_CPU_SYNC);
if (dma_mapping_error(ctx->jrdev, dma_addr)) {
dev_err(ctx->jrdev, "unable to map key, shared descriptors\n");
caam_jr_free(ctx->jrdev);
return -ENOMEM;
}
ctx->sh_desc_enc_dma = dma_addr;
ctx->sh_desc_dec_dma = dma_addr + offsetof(struct caam_ctx,
sh_desc_dec);
ctx->key_dma = dma_addr + offsetof(struct caam_ctx, key);
/* copy descriptor header template value */
ctx->cdata.algtype = OP_TYPE_CLASS1_ALG | caam->class1_alg_type;
ctx->adata.algtype = OP_TYPE_CLASS2_ALG | caam->class2_alg_type;
return 0;
}
static int caam_cra_init(struct crypto_skcipher *tfm)
{
struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
struct caam_skcipher_alg *caam_alg =
container_of(alg, typeof(*caam_alg), skcipher);
return caam_init_common(crypto_skcipher_ctx(tfm), &caam_alg->caam,
false);
}
static int caam_aead_init(struct crypto_aead *tfm)
{
struct aead_alg *alg = crypto_aead_alg(tfm);
struct caam_aead_alg *caam_alg =
container_of(alg, struct caam_aead_alg, aead);
struct caam_ctx *ctx = crypto_aead_ctx(tfm);
return caam_init_common(ctx, &caam_alg->caam, !caam_alg->caam.nodkp);
}
static void caam_exit_common(struct caam_ctx *ctx)
{
dma_unmap_single_attrs(ctx->jrdev, ctx->sh_desc_enc_dma,
offsetof(struct caam_ctx, sh_desc_enc_dma),
ctx->dir, DMA_ATTR_SKIP_CPU_SYNC);
caam_jr_free(ctx->jrdev);
}
static void caam_cra_exit(struct crypto_skcipher *tfm)
{
caam_exit_common(crypto_skcipher_ctx(tfm));
}
static void caam_aead_exit(struct crypto_aead *tfm)
{
caam_exit_common(crypto_aead_ctx(tfm));
}
void caam_algapi_exit(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(driver_aeads); i++) {
struct caam_aead_alg *t_alg = driver_aeads + i;
if (t_alg->registered)
crypto_unregister_aead(&t_alg->aead);
}
for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
struct caam_skcipher_alg *t_alg = driver_algs + i;
if (t_alg->registered)
crypto_unregister_skcipher(&t_alg->skcipher);
}
}
static void caam_skcipher_alg_init(struct caam_skcipher_alg *t_alg)
{
struct skcipher_alg *alg = &t_alg->skcipher;
alg->base.cra_module = THIS_MODULE;
alg->base.cra_priority = CAAM_CRA_PRIORITY;
alg->base.cra_ctxsize = sizeof(struct caam_ctx);
alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY;
alg->init = caam_cra_init;
alg->exit = caam_cra_exit;
}
static void caam_aead_alg_init(struct caam_aead_alg *t_alg)
{
struct aead_alg *alg = &t_alg->aead;
alg->base.cra_module = THIS_MODULE;
alg->base.cra_priority = CAAM_CRA_PRIORITY;
alg->base.cra_ctxsize = sizeof(struct caam_ctx);
alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY;
alg->init = caam_aead_init;
alg->exit = caam_aead_exit;
}
int caam_algapi_init(struct device *ctrldev)
{
struct caam_drv_private *priv = dev_get_drvdata(ctrldev);
int i = 0, err = 0;
u32 aes_vid, aes_inst, des_inst, md_vid, md_inst, ccha_inst, ptha_inst;
u32 arc4_inst;
unsigned int md_limit = SHA512_DIGEST_SIZE;
bool registered = false, gcm_support;
/*
* Register crypto algorithms the device supports.
* First, detect presence and attributes of DES, AES, and MD blocks.
*/
if (priv->era < 10) {
u32 cha_vid, cha_inst, aes_rn;
cha_vid = rd_reg32(&priv->ctrl->perfmon.cha_id_ls);
aes_vid = cha_vid & CHA_ID_LS_AES_MASK;
md_vid = (cha_vid & CHA_ID_LS_MD_MASK) >> CHA_ID_LS_MD_SHIFT;
cha_inst = rd_reg32(&priv->ctrl->perfmon.cha_num_ls);
des_inst = (cha_inst & CHA_ID_LS_DES_MASK) >>
CHA_ID_LS_DES_SHIFT;
aes_inst = cha_inst & CHA_ID_LS_AES_MASK;
md_inst = (cha_inst & CHA_ID_LS_MD_MASK) >> CHA_ID_LS_MD_SHIFT;
arc4_inst = (cha_inst & CHA_ID_LS_ARC4_MASK) >>
CHA_ID_LS_ARC4_SHIFT;
ccha_inst = 0;
ptha_inst = 0;
aes_rn = rd_reg32(&priv->ctrl->perfmon.cha_rev_ls) &
CHA_ID_LS_AES_MASK;
gcm_support = !(aes_vid == CHA_VER_VID_AES_LP && aes_rn < 8);
} else {
u32 aesa, mdha;
aesa = rd_reg32(&priv->ctrl->vreg.aesa);
mdha = rd_reg32(&priv->ctrl->vreg.mdha);
aes_vid = (aesa & CHA_VER_VID_MASK) >> CHA_VER_VID_SHIFT;
md_vid = (mdha & CHA_VER_VID_MASK) >> CHA_VER_VID_SHIFT;
des_inst = rd_reg32(&priv->ctrl->vreg.desa) & CHA_VER_NUM_MASK;
aes_inst = aesa & CHA_VER_NUM_MASK;
md_inst = mdha & CHA_VER_NUM_MASK;
ccha_inst = rd_reg32(&priv->ctrl->vreg.ccha) & CHA_VER_NUM_MASK;
ptha_inst = rd_reg32(&priv->ctrl->vreg.ptha) & CHA_VER_NUM_MASK;
arc4_inst = rd_reg32(&priv->ctrl->vreg.afha) & CHA_VER_NUM_MASK;
gcm_support = aesa & CHA_VER_MISC_AES_GCM;
}
/* If MD is present, limit digest size based on LP256 */
if (md_inst && md_vid == CHA_VER_VID_MD_LP256)
md_limit = SHA256_DIGEST_SIZE;
for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
struct caam_skcipher_alg *t_alg = driver_algs + i;
u32 alg_sel = t_alg->caam.class1_alg_type & OP_ALG_ALGSEL_MASK;
/* Skip DES algorithms if not supported by device */
if (!des_inst &&
((alg_sel == OP_ALG_ALGSEL_3DES) ||
(alg_sel == OP_ALG_ALGSEL_DES)))
continue;
/* Skip AES algorithms if not supported by device */
if (!aes_inst && (alg_sel == OP_ALG_ALGSEL_AES))
continue;
/* Skip ARC4 algorithms if not supported by device */
if (!arc4_inst && alg_sel == OP_ALG_ALGSEL_ARC4)
continue;
/*
* Check support for AES modes not available
* on LP devices.
*/
if (aes_vid == CHA_VER_VID_AES_LP &&
(t_alg->caam.class1_alg_type & OP_ALG_AAI_MASK) ==
OP_ALG_AAI_XTS)
continue;
caam_skcipher_alg_init(t_alg);
err = crypto_register_skcipher(&t_alg->skcipher);
if (err) {
pr_warn("%s alg registration failed\n",
t_alg->skcipher.base.cra_driver_name);
continue;
}
t_alg->registered = true;
registered = true;
}
for (i = 0; i < ARRAY_SIZE(driver_aeads); i++) {
struct caam_aead_alg *t_alg = driver_aeads + i;
u32 c1_alg_sel = t_alg->caam.class1_alg_type &
OP_ALG_ALGSEL_MASK;
u32 c2_alg_sel = t_alg->caam.class2_alg_type &
OP_ALG_ALGSEL_MASK;
u32 alg_aai = t_alg->caam.class1_alg_type & OP_ALG_AAI_MASK;
/* Skip DES algorithms if not supported by device */
if (!des_inst &&
((c1_alg_sel == OP_ALG_ALGSEL_3DES) ||
(c1_alg_sel == OP_ALG_ALGSEL_DES)))
continue;
/* Skip AES algorithms if not supported by device */
if (!aes_inst && (c1_alg_sel == OP_ALG_ALGSEL_AES))
continue;
/* Skip CHACHA20 algorithms if not supported by device */
if (c1_alg_sel == OP_ALG_ALGSEL_CHACHA20 && !ccha_inst)
continue;
/* Skip POLY1305 algorithms if not supported by device */
if (c2_alg_sel == OP_ALG_ALGSEL_POLY1305 && !ptha_inst)
continue;
/* Skip GCM algorithms if not supported by device */
if (c1_alg_sel == OP_ALG_ALGSEL_AES &&
alg_aai == OP_ALG_AAI_GCM && !gcm_support)
continue;
/*
* Skip algorithms requiring message digests
* if MD or MD size is not supported by device.
*/
if (is_mdha(c2_alg_sel) &&
(!md_inst || t_alg->aead.maxauthsize > md_limit))
continue;
caam_aead_alg_init(t_alg);
err = crypto_register_aead(&t_alg->aead);
if (err) {
pr_warn("%s alg registration failed\n",
t_alg->aead.base.cra_driver_name);
continue;
}
t_alg->registered = true;
registered = true;
}
if (registered)
pr_info("caam algorithms registered in /proc/crypto\n");
return err;
}