From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/drivers/crypto/inside-secure/safexcel_cipher.c | 3138 ++++++++++++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 2,772 insertions(+), 366 deletions(-)
diff --git a/kernel/drivers/crypto/inside-secure/safexcel_cipher.c b/kernel/drivers/crypto/inside-secure/safexcel_cipher.c
index 42a3830..9bcfb79 100644
--- a/kernel/drivers/crypto/inside-secure/safexcel_cipher.c
+++ b/kernel/drivers/crypto/inside-secure/safexcel_cipher.c
@@ -5,15 +5,23 @@
* Antoine Tenart <antoine.tenart@free-electrons.com>
*/
+#include <asm/unaligned.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
-
#include <crypto/aead.h>
#include <crypto/aes.h>
#include <crypto/authenc.h>
-#include <crypto/des.h>
+#include <crypto/chacha.h>
+#include <crypto/ctr.h>
+#include <crypto/internal/des.h>
+#include <crypto/gcm.h>
+#include <crypto/ghash.h>
+#include <crypto/poly1305.h>
#include <crypto/sha.h>
+#include <crypto/sm3.h>
+#include <crypto/sm4.h>
+#include <crypto/xts.h>
#include <crypto/skcipher.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
@@ -29,6 +37,8 @@
SAFEXCEL_DES,
SAFEXCEL_3DES,
SAFEXCEL_AES,
+ SAFEXCEL_CHACHA20,
+ SAFEXCEL_SM4,
};
struct safexcel_cipher_ctx {
@@ -37,16 +47,23 @@
u32 mode;
enum safexcel_cipher_alg alg;
- bool aead;
+ u8 aead; /* !=0=AEAD, 2=IPSec ESP AEAD, 3=IPsec ESP GMAC */
+ u8 xcm; /* 0=authenc, 1=GCM, 2 reserved for CCM */
+ u8 aadskip;
+ u8 blocksz;
+ u32 ivmask;
+ u32 ctrinit;
- __le32 key[8];
- unsigned int key_len;
+ __le32 key[16];
+ u32 nonce;
+ unsigned int key_len, xts;
/* All the below is AEAD specific */
u32 hash_alg;
u32 state_sz;
- u32 ipad[SHA512_DIGEST_SIZE / sizeof(u32)];
- u32 opad[SHA512_DIGEST_SIZE / sizeof(u32)];
+
+ struct crypto_cipher *hkaes;
+ struct crypto_aead *fback;
};
struct safexcel_cipher_req {
@@ -54,101 +71,301 @@
/* Number of result descriptors associated to the request */
unsigned int rdescs;
bool needs_inv;
+ int nr_src, nr_dst;
};
+
+static int safexcel_skcipher_iv(struct safexcel_cipher_ctx *ctx, u8 *iv,
+ struct safexcel_command_desc *cdesc)
+{
+ if (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD) {
+ cdesc->control_data.options |= EIP197_OPTION_4_TOKEN_IV_CMD;
+ /* 32 bit nonce */
+ cdesc->control_data.token[0] = ctx->nonce;
+ /* 64 bit IV part */
+ memcpy(&cdesc->control_data.token[1], iv, 8);
+ /* 32 bit counter, start at 0 or 1 (big endian!) */
+ cdesc->control_data.token[3] =
+ (__force u32)cpu_to_be32(ctx->ctrinit);
+ return 4;
+ }
+ if (ctx->alg == SAFEXCEL_CHACHA20) {
+ cdesc->control_data.options |= EIP197_OPTION_4_TOKEN_IV_CMD;
+ /* 96 bit nonce part */
+ memcpy(&cdesc->control_data.token[0], &iv[4], 12);
+ /* 32 bit counter */
+ cdesc->control_data.token[3] = *(u32 *)iv;
+ return 4;
+ }
+
+ cdesc->control_data.options |= ctx->ivmask;
+ memcpy(cdesc->control_data.token, iv, ctx->blocksz);
+ return ctx->blocksz / sizeof(u32);
+}
static void safexcel_skcipher_token(struct safexcel_cipher_ctx *ctx, u8 *iv,
struct safexcel_command_desc *cdesc,
+ struct safexcel_token *atoken,
u32 length)
{
struct safexcel_token *token;
- unsigned offset = 0;
+ int ivlen;
- if (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CBC) {
- switch (ctx->alg) {
- case SAFEXCEL_DES:
- offset = DES_BLOCK_SIZE / sizeof(u32);
- memcpy(cdesc->control_data.token, iv, DES_BLOCK_SIZE);
- cdesc->control_data.options |= EIP197_OPTION_2_TOKEN_IV_CMD;
- break;
- case SAFEXCEL_3DES:
- offset = DES3_EDE_BLOCK_SIZE / sizeof(u32);
- memcpy(cdesc->control_data.token, iv, DES3_EDE_BLOCK_SIZE);
- cdesc->control_data.options |= EIP197_OPTION_2_TOKEN_IV_CMD;
- break;
-
- case SAFEXCEL_AES:
- offset = AES_BLOCK_SIZE / sizeof(u32);
- memcpy(cdesc->control_data.token, iv, AES_BLOCK_SIZE);
- cdesc->control_data.options |= EIP197_OPTION_4_TOKEN_IV_CMD;
- break;
- }
+ ivlen = safexcel_skcipher_iv(ctx, iv, cdesc);
+ if (ivlen == 4) {
+ /* No space in cdesc, instruction moves to atoken */
+ cdesc->additional_cdata_size = 1;
+ token = atoken;
+ } else {
+ /* Everything fits in cdesc */
+ token = (struct safexcel_token *)(cdesc->control_data.token + 2);
+ /* Need to pad with NOP */
+ eip197_noop_token(&token[1]);
}
- token = (struct safexcel_token *)(cdesc->control_data.token + offset);
+ token->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
+ token->packet_length = length;
+ token->stat = EIP197_TOKEN_STAT_LAST_PACKET |
+ EIP197_TOKEN_STAT_LAST_HASH;
+ token->instructions = EIP197_TOKEN_INS_LAST |
+ EIP197_TOKEN_INS_TYPE_CRYPTO |
+ EIP197_TOKEN_INS_TYPE_OUTPUT;
+}
- token[0].opcode = EIP197_TOKEN_OPCODE_DIRECTION;
- token[0].packet_length = length;
- token[0].stat = EIP197_TOKEN_STAT_LAST_PACKET |
- EIP197_TOKEN_STAT_LAST_HASH;
- token[0].instructions = EIP197_TOKEN_INS_LAST |
- EIP197_TOKEN_INS_TYPE_CRYTO |
- EIP197_TOKEN_INS_TYPE_OUTPUT;
+static void safexcel_aead_iv(struct safexcel_cipher_ctx *ctx, u8 *iv,
+ struct safexcel_command_desc *cdesc)
+{
+ if (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD ||
+ ctx->aead & EIP197_AEAD_TYPE_IPSEC_ESP) { /* _ESP and _ESP_GMAC */
+ /* 32 bit nonce */
+ cdesc->control_data.token[0] = ctx->nonce;
+ /* 64 bit IV part */
+ memcpy(&cdesc->control_data.token[1], iv, 8);
+ /* 32 bit counter, start at 0 or 1 (big endian!) */
+ cdesc->control_data.token[3] =
+ (__force u32)cpu_to_be32(ctx->ctrinit);
+ return;
+ }
+ if (ctx->xcm == EIP197_XCM_MODE_GCM || ctx->alg == SAFEXCEL_CHACHA20) {
+ /* 96 bit IV part */
+ memcpy(&cdesc->control_data.token[0], iv, 12);
+ /* 32 bit counter, start at 0 or 1 (big endian!) */
+ cdesc->control_data.token[3] =
+ (__force u32)cpu_to_be32(ctx->ctrinit);
+ return;
+ }
+ /* CBC */
+ memcpy(cdesc->control_data.token, iv, ctx->blocksz);
}
static void safexcel_aead_token(struct safexcel_cipher_ctx *ctx, u8 *iv,
struct safexcel_command_desc *cdesc,
+ struct safexcel_token *atoken,
enum safexcel_cipher_direction direction,
u32 cryptlen, u32 assoclen, u32 digestsize)
{
- struct safexcel_token *token;
- unsigned offset = 0;
+ struct safexcel_token *aadref;
+ int atoksize = 2; /* Start with minimum size */
+ int assocadj = assoclen - ctx->aadskip, aadalign;
- if (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CBC) {
- offset = AES_BLOCK_SIZE / sizeof(u32);
- memcpy(cdesc->control_data.token, iv, AES_BLOCK_SIZE);
-
- cdesc->control_data.options |= EIP197_OPTION_4_TOKEN_IV_CMD;
- }
-
- token = (struct safexcel_token *)(cdesc->control_data.token + offset);
+ /* Always 4 dwords of embedded IV for AEAD modes */
+ cdesc->control_data.options |= EIP197_OPTION_4_TOKEN_IV_CMD;
if (direction == SAFEXCEL_DECRYPT)
cryptlen -= digestsize;
- token[0].opcode = EIP197_TOKEN_OPCODE_DIRECTION;
- token[0].packet_length = assoclen;
- token[0].instructions = EIP197_TOKEN_INS_TYPE_HASH |
- EIP197_TOKEN_INS_TYPE_OUTPUT;
+ if (unlikely(ctx->xcm == EIP197_XCM_MODE_CCM)) {
+ /* Construct IV block B0 for the CBC-MAC */
+ u8 *final_iv = (u8 *)cdesc->control_data.token;
+ u8 *cbcmaciv = (u8 *)&atoken[1];
+ __le32 *aadlen = (__le32 *)&atoken[5];
- token[1].opcode = EIP197_TOKEN_OPCODE_DIRECTION;
- token[1].packet_length = cryptlen;
- token[1].stat = EIP197_TOKEN_STAT_LAST_HASH;
- token[1].instructions = EIP197_TOKEN_INS_LAST |
- EIP197_TOKEN_INS_TYPE_CRYTO |
- EIP197_TOKEN_INS_TYPE_HASH |
- EIP197_TOKEN_INS_TYPE_OUTPUT;
+ if (ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP) {
+ /* Length + nonce */
+ cdesc->control_data.token[0] = ctx->nonce;
+ /* Fixup flags byte */
+ *(__le32 *)cbcmaciv =
+ cpu_to_le32(ctx->nonce |
+ ((assocadj > 0) << 6) |
+ ((digestsize - 2) << 2));
+ /* 64 bit IV part */
+ memcpy(&cdesc->control_data.token[1], iv, 8);
+ memcpy(cbcmaciv + 4, iv, 8);
+ /* Start counter at 0 */
+ cdesc->control_data.token[3] = 0;
+ /* Message length */
+ *(__be32 *)(cbcmaciv + 12) = cpu_to_be32(cryptlen);
+ } else {
+ /* Variable length IV part */
+ memcpy(final_iv, iv, 15 - iv[0]);
+ memcpy(cbcmaciv, iv, 15 - iv[0]);
+ /* Start variable length counter at 0 */
+ memset(final_iv + 15 - iv[0], 0, iv[0] + 1);
+ memset(cbcmaciv + 15 - iv[0], 0, iv[0] - 1);
+ /* fixup flags byte */
+ cbcmaciv[0] |= ((assocadj > 0) << 6) |
+ ((digestsize - 2) << 2);
+ /* insert lower 2 bytes of message length */
+ cbcmaciv[14] = cryptlen >> 8;
+ cbcmaciv[15] = cryptlen & 255;
+ }
+
+ atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
+ atoken->packet_length = AES_BLOCK_SIZE +
+ ((assocadj > 0) << 1);
+ atoken->stat = 0;
+ atoken->instructions = EIP197_TOKEN_INS_ORIGIN_TOKEN |
+ EIP197_TOKEN_INS_TYPE_HASH;
+
+ if (likely(assocadj)) {
+ *aadlen = cpu_to_le32((assocadj >> 8) |
+ (assocadj & 255) << 8);
+ atoken += 6;
+ atoksize += 7;
+ } else {
+ atoken += 5;
+ atoksize += 6;
+ }
+
+ /* Process AAD data */
+ aadref = atoken;
+ atoken->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
+ atoken->packet_length = assocadj;
+ atoken->stat = 0;
+ atoken->instructions = EIP197_TOKEN_INS_TYPE_HASH;
+ atoken++;
+
+ /* For CCM only, align AAD data towards hash engine */
+ atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
+ aadalign = (assocadj + 2) & 15;
+ atoken->packet_length = assocadj && aadalign ?
+ 16 - aadalign :
+ 0;
+ if (likely(cryptlen)) {
+ atoken->stat = 0;
+ atoken->instructions = EIP197_TOKEN_INS_TYPE_HASH;
+ } else {
+ atoken->stat = EIP197_TOKEN_STAT_LAST_HASH;
+ atoken->instructions = EIP197_TOKEN_INS_LAST |
+ EIP197_TOKEN_INS_TYPE_HASH;
+ }
+ } else {
+ safexcel_aead_iv(ctx, iv, cdesc);
+
+ /* Process AAD data */
+ aadref = atoken;
+ atoken->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
+ atoken->packet_length = assocadj;
+ atoken->stat = EIP197_TOKEN_STAT_LAST_HASH;
+ atoken->instructions = EIP197_TOKEN_INS_LAST |
+ EIP197_TOKEN_INS_TYPE_HASH;
+ }
+ atoken++;
+
+ if (ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP) {
+ /* For ESP mode (and not GMAC), skip over the IV */
+ atoken->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
+ atoken->packet_length = EIP197_AEAD_IPSEC_IV_SIZE;
+ atoken->stat = 0;
+ atoken->instructions = 0;
+ atoken++;
+ atoksize++;
+ } else if (unlikely(ctx->alg == SAFEXCEL_CHACHA20 &&
+ direction == SAFEXCEL_DECRYPT)) {
+ /* Poly-chacha decryption needs a dummy NOP here ... */
+ atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
+ atoken->packet_length = 16; /* According to Op Manual */
+ atoken->stat = 0;
+ atoken->instructions = 0;
+ atoken++;
+ atoksize++;
+ }
+
+ if (ctx->xcm) {
+ /* For GCM and CCM, obtain enc(Y0) */
+ atoken->opcode = EIP197_TOKEN_OPCODE_INSERT_REMRES;
+ atoken->packet_length = 0;
+ atoken->stat = 0;
+ atoken->instructions = AES_BLOCK_SIZE;
+ atoken++;
+
+ atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
+ atoken->packet_length = AES_BLOCK_SIZE;
+ atoken->stat = 0;
+ atoken->instructions = EIP197_TOKEN_INS_TYPE_OUTPUT |
+ EIP197_TOKEN_INS_TYPE_CRYPTO;
+ atoken++;
+ atoksize += 2;
+ }
+
+ if (likely(cryptlen || ctx->alg == SAFEXCEL_CHACHA20)) {
+ /* Fixup stat field for AAD direction instruction */
+ aadref->stat = 0;
+
+ /* Process crypto data */
+ atoken->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
+ atoken->packet_length = cryptlen;
+
+ if (unlikely(ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP_GMAC)) {
+ /* Fixup instruction field for AAD dir instruction */
+ aadref->instructions = EIP197_TOKEN_INS_TYPE_HASH;
+
+ /* Do not send to crypt engine in case of GMAC */
+ atoken->instructions = EIP197_TOKEN_INS_LAST |
+ EIP197_TOKEN_INS_TYPE_HASH |
+ EIP197_TOKEN_INS_TYPE_OUTPUT;
+ } else {
+ atoken->instructions = EIP197_TOKEN_INS_LAST |
+ EIP197_TOKEN_INS_TYPE_CRYPTO |
+ EIP197_TOKEN_INS_TYPE_HASH |
+ EIP197_TOKEN_INS_TYPE_OUTPUT;
+ }
+
+ cryptlen &= 15;
+ if (unlikely(ctx->xcm == EIP197_XCM_MODE_CCM && cryptlen)) {
+ atoken->stat = 0;
+ /* For CCM only, pad crypto data to the hash engine */
+ atoken++;
+ atoksize++;
+ atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
+ atoken->packet_length = 16 - cryptlen;
+ atoken->stat = EIP197_TOKEN_STAT_LAST_HASH;
+ atoken->instructions = EIP197_TOKEN_INS_TYPE_HASH;
+ } else {
+ atoken->stat = EIP197_TOKEN_STAT_LAST_HASH;
+ }
+ atoken++;
+ atoksize++;
+ }
if (direction == SAFEXCEL_ENCRYPT) {
- token[2].opcode = EIP197_TOKEN_OPCODE_INSERT;
- token[2].packet_length = digestsize;
- token[2].stat = EIP197_TOKEN_STAT_LAST_HASH |
- EIP197_TOKEN_STAT_LAST_PACKET;
- token[2].instructions = EIP197_TOKEN_INS_TYPE_OUTPUT |
- EIP197_TOKEN_INS_INSERT_HASH_DIGEST;
+ /* Append ICV */
+ atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
+ atoken->packet_length = digestsize;
+ atoken->stat = EIP197_TOKEN_STAT_LAST_HASH |
+ EIP197_TOKEN_STAT_LAST_PACKET;
+ atoken->instructions = EIP197_TOKEN_INS_TYPE_OUTPUT |
+ EIP197_TOKEN_INS_INSERT_HASH_DIGEST;
} else {
- token[2].opcode = EIP197_TOKEN_OPCODE_RETRIEVE;
- token[2].packet_length = digestsize;
- token[2].stat = EIP197_TOKEN_STAT_LAST_HASH |
- EIP197_TOKEN_STAT_LAST_PACKET;
- token[2].instructions = EIP197_TOKEN_INS_INSERT_HASH_DIGEST;
+ /* Extract ICV */
+ atoken->opcode = EIP197_TOKEN_OPCODE_RETRIEVE;
+ atoken->packet_length = digestsize;
+ atoken->stat = EIP197_TOKEN_STAT_LAST_HASH |
+ EIP197_TOKEN_STAT_LAST_PACKET;
+ atoken->instructions = EIP197_TOKEN_INS_INSERT_HASH_DIGEST;
+ atoken++;
+ atoksize++;
- token[3].opcode = EIP197_TOKEN_OPCODE_VERIFY;
- token[3].packet_length = digestsize |
- EIP197_TOKEN_HASH_RESULT_VERIFY;
- token[3].stat = EIP197_TOKEN_STAT_LAST_HASH |
- EIP197_TOKEN_STAT_LAST_PACKET;
- token[3].instructions = EIP197_TOKEN_INS_TYPE_OUTPUT;
+ /* Verify ICV */
+ atoken->opcode = EIP197_TOKEN_OPCODE_VERIFY;
+ atoken->packet_length = digestsize |
+ EIP197_TOKEN_HASH_RESULT_VERIFY;
+ atoken->stat = EIP197_TOKEN_STAT_LAST_HASH |
+ EIP197_TOKEN_STAT_LAST_PACKET;
+ atoken->instructions = EIP197_TOKEN_INS_TYPE_OUTPUT;
}
+
+ /* Fixup length of the token in the command descriptor */
+ cdesc->additional_cdata_size = atoksize;
}
static int safexcel_skcipher_aes_setkey(struct crypto_skcipher *ctfm,
@@ -156,19 +373,17 @@
{
struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
struct crypto_aes_ctx aes;
int ret, i;
- ret = crypto_aes_expand_key(&aes, key, len);
- if (ret) {
- crypto_skcipher_set_flags(ctfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ ret = aes_expandkey(&aes, key, len);
+ if (ret)
return ret;
- }
if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
for (i = 0; i < len / sizeof(u32); i++) {
- if (ctx->key[i] != cpu_to_le32(aes.key_enc[i])) {
+ if (le32_to_cpu(ctx->key[i]) != aes.key_enc[i]) {
ctx->base.needs_inv = true;
break;
}
@@ -184,80 +399,107 @@
return 0;
}
-static int safexcel_aead_aes_setkey(struct crypto_aead *ctfm, const u8 *key,
- unsigned int len)
+static int safexcel_aead_setkey(struct crypto_aead *ctfm, const u8 *key,
+ unsigned int len)
{
struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
- struct safexcel_ahash_export_state istate, ostate;
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
struct crypto_authenc_keys keys;
+ struct crypto_aes_ctx aes;
+ int err = -EINVAL, i;
+ const char *alg;
- if (crypto_authenc_extractkeys(&keys, key, len) != 0)
+ if (unlikely(crypto_authenc_extractkeys(&keys, key, len)))
goto badkey;
- if (keys.enckeylen > sizeof(ctx->key))
- goto badkey;
+ if (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD) {
+ /* Must have at least space for the nonce here */
+ if (unlikely(keys.enckeylen < CTR_RFC3686_NONCE_SIZE))
+ goto badkey;
+ /* last 4 bytes of key are the nonce! */
+ ctx->nonce = *(u32 *)(keys.enckey + keys.enckeylen -
+ CTR_RFC3686_NONCE_SIZE);
+ /* exclude the nonce here */
+ keys.enckeylen -= CTR_RFC3686_NONCE_SIZE;
+ }
/* Encryption key */
- if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma &&
- memcmp(ctx->key, keys.enckey, keys.enckeylen))
- ctx->base.needs_inv = true;
+ switch (ctx->alg) {
+ case SAFEXCEL_DES:
+ err = verify_aead_des_key(ctfm, keys.enckey, keys.enckeylen);
+ if (unlikely(err))
+ goto badkey;
+ break;
+ case SAFEXCEL_3DES:
+ err = verify_aead_des3_key(ctfm, keys.enckey, keys.enckeylen);
+ if (unlikely(err))
+ goto badkey;
+ break;
+ case SAFEXCEL_AES:
+ err = aes_expandkey(&aes, keys.enckey, keys.enckeylen);
+ if (unlikely(err))
+ goto badkey;
+ break;
+ case SAFEXCEL_SM4:
+ if (unlikely(keys.enckeylen != SM4_KEY_SIZE))
+ goto badkey;
+ break;
+ default:
+ dev_err(priv->dev, "aead: unsupported cipher algorithm\n");
+ goto badkey;
+ }
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
+ for (i = 0; i < keys.enckeylen / sizeof(u32); i++) {
+ if (le32_to_cpu(ctx->key[i]) !=
+ ((u32 *)keys.enckey)[i]) {
+ ctx->base.needs_inv = true;
+ break;
+ }
+ }
+ }
/* Auth key */
switch (ctx->hash_alg) {
case CONTEXT_CONTROL_CRYPTO_ALG_SHA1:
- if (safexcel_hmac_setkey("safexcel-sha1", keys.authkey,
- keys.authkeylen, &istate, &ostate))
- goto badkey;
+ alg = "safexcel-sha1";
break;
case CONTEXT_CONTROL_CRYPTO_ALG_SHA224:
- if (safexcel_hmac_setkey("safexcel-sha224", keys.authkey,
- keys.authkeylen, &istate, &ostate))
- goto badkey;
+ alg = "safexcel-sha224";
break;
case CONTEXT_CONTROL_CRYPTO_ALG_SHA256:
- if (safexcel_hmac_setkey("safexcel-sha256", keys.authkey,
- keys.authkeylen, &istate, &ostate))
- goto badkey;
+ alg = "safexcel-sha256";
break;
case CONTEXT_CONTROL_CRYPTO_ALG_SHA384:
- if (safexcel_hmac_setkey("safexcel-sha384", keys.authkey,
- keys.authkeylen, &istate, &ostate))
- goto badkey;
+ alg = "safexcel-sha384";
break;
case CONTEXT_CONTROL_CRYPTO_ALG_SHA512:
- if (safexcel_hmac_setkey("safexcel-sha512", keys.authkey,
- keys.authkeylen, &istate, &ostate))
- goto badkey;
+ alg = "safexcel-sha512";
+ break;
+ case CONTEXT_CONTROL_CRYPTO_ALG_SM3:
+ alg = "safexcel-sm3";
break;
default:
dev_err(priv->dev, "aead: unsupported hash algorithm\n");
goto badkey;
}
- crypto_aead_set_flags(ctfm, crypto_aead_get_flags(ctfm) &
- CRYPTO_TFM_RES_MASK);
-
- if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma &&
- (memcmp(ctx->ipad, istate.state, ctx->state_sz) ||
- memcmp(ctx->opad, ostate.state, ctx->state_sz)))
- ctx->base.needs_inv = true;
+ if (safexcel_hmac_setkey(&ctx->base, keys.authkey, keys.authkeylen,
+ alg, ctx->state_sz))
+ goto badkey;
/* Now copy the keys into the context */
- memcpy(ctx->key, keys.enckey, keys.enckeylen);
+ for (i = 0; i < keys.enckeylen / sizeof(u32); i++)
+ ctx->key[i] = cpu_to_le32(((u32 *)keys.enckey)[i]);
ctx->key_len = keys.enckeylen;
-
- memcpy(ctx->ipad, &istate.state, ctx->state_sz);
- memcpy(ctx->opad, &ostate.state, ctx->state_sz);
memzero_explicit(&keys, sizeof(keys));
return 0;
badkey:
- crypto_aead_set_flags(ctfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
memzero_explicit(&keys, sizeof(keys));
- return -EINVAL;
+ return err;
}
static int safexcel_context_control(struct safexcel_cipher_ctx *ctx,
@@ -265,59 +507,99 @@
struct safexcel_cipher_req *sreq,
struct safexcel_command_desc *cdesc)
{
- struct safexcel_crypto_priv *priv = ctx->priv;
- int ctrl_size;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
+ int ctrl_size = ctx->key_len / sizeof(u32);
+
+ cdesc->control_data.control1 = ctx->mode;
if (ctx->aead) {
- if (sreq->direction == SAFEXCEL_ENCRYPT)
- cdesc->control_data.control0 |= CONTEXT_CONTROL_TYPE_ENCRYPT_HASH_OUT;
- else
- cdesc->control_data.control0 |= CONTEXT_CONTROL_TYPE_HASH_DECRYPT_IN;
- } else {
- cdesc->control_data.control0 |= CONTEXT_CONTROL_TYPE_CRYPTO_OUT;
+ /* Take in account the ipad+opad digests */
+ if (ctx->xcm) {
+ ctrl_size += ctx->state_sz / sizeof(u32);
+ cdesc->control_data.control0 =
+ CONTEXT_CONTROL_KEY_EN |
+ CONTEXT_CONTROL_DIGEST_XCM |
+ ctx->hash_alg |
+ CONTEXT_CONTROL_SIZE(ctrl_size);
+ } else if (ctx->alg == SAFEXCEL_CHACHA20) {
+ /* Chacha20-Poly1305 */
+ cdesc->control_data.control0 =
+ CONTEXT_CONTROL_KEY_EN |
+ CONTEXT_CONTROL_CRYPTO_ALG_CHACHA20 |
+ (sreq->direction == SAFEXCEL_ENCRYPT ?
+ CONTEXT_CONTROL_TYPE_ENCRYPT_HASH_OUT :
+ CONTEXT_CONTROL_TYPE_HASH_DECRYPT_IN) |
+ ctx->hash_alg |
+ CONTEXT_CONTROL_SIZE(ctrl_size);
+ return 0;
+ } else {
+ ctrl_size += ctx->state_sz / sizeof(u32) * 2;
+ cdesc->control_data.control0 =
+ CONTEXT_CONTROL_KEY_EN |
+ CONTEXT_CONTROL_DIGEST_HMAC |
+ ctx->hash_alg |
+ CONTEXT_CONTROL_SIZE(ctrl_size);
+ }
- /* The decryption control type is a combination of the
- * encryption type and CONTEXT_CONTROL_TYPE_NULL_IN, for all
- * types.
- */
- if (sreq->direction == SAFEXCEL_DECRYPT)
- cdesc->control_data.control0 |= CONTEXT_CONTROL_TYPE_NULL_IN;
+ if (sreq->direction == SAFEXCEL_ENCRYPT &&
+ (ctx->xcm == EIP197_XCM_MODE_CCM ||
+ ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP_GMAC))
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_TYPE_HASH_ENCRYPT_OUT;
+ else if (sreq->direction == SAFEXCEL_ENCRYPT)
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_TYPE_ENCRYPT_HASH_OUT;
+ else if (ctx->xcm == EIP197_XCM_MODE_CCM)
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_TYPE_DECRYPT_HASH_IN;
+ else
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_TYPE_HASH_DECRYPT_IN;
+ } else {
+ if (sreq->direction == SAFEXCEL_ENCRYPT)
+ cdesc->control_data.control0 =
+ CONTEXT_CONTROL_TYPE_CRYPTO_OUT |
+ CONTEXT_CONTROL_KEY_EN |
+ CONTEXT_CONTROL_SIZE(ctrl_size);
+ else
+ cdesc->control_data.control0 =
+ CONTEXT_CONTROL_TYPE_CRYPTO_IN |
+ CONTEXT_CONTROL_KEY_EN |
+ CONTEXT_CONTROL_SIZE(ctrl_size);
}
- cdesc->control_data.control0 |= CONTEXT_CONTROL_KEY_EN;
- cdesc->control_data.control1 |= ctx->mode;
-
- if (ctx->aead)
- cdesc->control_data.control0 |= CONTEXT_CONTROL_DIGEST_HMAC |
- ctx->hash_alg;
-
if (ctx->alg == SAFEXCEL_DES) {
- cdesc->control_data.control0 |= CONTEXT_CONTROL_CRYPTO_ALG_DES;
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_CRYPTO_ALG_DES;
} else if (ctx->alg == SAFEXCEL_3DES) {
- cdesc->control_data.control0 |= CONTEXT_CONTROL_CRYPTO_ALG_3DES;
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_CRYPTO_ALG_3DES;
} else if (ctx->alg == SAFEXCEL_AES) {
- switch (ctx->key_len) {
+ switch (ctx->key_len >> ctx->xts) {
case AES_KEYSIZE_128:
- cdesc->control_data.control0 |= CONTEXT_CONTROL_CRYPTO_ALG_AES128;
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_CRYPTO_ALG_AES128;
break;
case AES_KEYSIZE_192:
- cdesc->control_data.control0 |= CONTEXT_CONTROL_CRYPTO_ALG_AES192;
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_CRYPTO_ALG_AES192;
break;
case AES_KEYSIZE_256:
- cdesc->control_data.control0 |= CONTEXT_CONTROL_CRYPTO_ALG_AES256;
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_CRYPTO_ALG_AES256;
break;
default:
dev_err(priv->dev, "aes keysize not supported: %u\n",
- ctx->key_len);
+ ctx->key_len >> ctx->xts);
return -EINVAL;
}
+ } else if (ctx->alg == SAFEXCEL_CHACHA20) {
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_CRYPTO_ALG_CHACHA20;
+ } else if (ctx->alg == SAFEXCEL_SM4) {
+ cdesc->control_data.control0 |=
+ CONTEXT_CONTROL_CRYPTO_ALG_SM4;
}
-
- ctrl_size = ctx->key_len / sizeof(u32);
- if (ctx->aead)
- /* Take in account the ipad+opad digests */
- ctrl_size += ctx->state_sz / sizeof(u32) * 2;
- cdesc->control_data.control0 |= CONTEXT_CONTROL_SIZE(ctrl_size);
return 0;
}
@@ -330,6 +612,9 @@
struct safexcel_cipher_req *sreq,
bool *should_complete, int *ret)
{
+ struct skcipher_request *areq = skcipher_request_cast(async);
+ struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(areq);
+ struct safexcel_cipher_ctx *ctx = crypto_skcipher_ctx(skcipher);
struct safexcel_result_desc *rdesc;
int ndesc = 0;
@@ -356,16 +641,22 @@
safexcel_complete(priv, ring);
if (src == dst) {
- dma_unmap_sg(priv->dev, src,
- sg_nents_for_len(src, cryptlen),
- DMA_BIDIRECTIONAL);
+ dma_unmap_sg(priv->dev, src, sreq->nr_src, DMA_BIDIRECTIONAL);
} else {
- dma_unmap_sg(priv->dev, src,
- sg_nents_for_len(src, cryptlen),
- DMA_TO_DEVICE);
- dma_unmap_sg(priv->dev, dst,
- sg_nents_for_len(dst, cryptlen),
- DMA_FROM_DEVICE);
+ dma_unmap_sg(priv->dev, src, sreq->nr_src, DMA_TO_DEVICE);
+ dma_unmap_sg(priv->dev, dst, sreq->nr_dst, DMA_FROM_DEVICE);
+ }
+
+ /*
+ * Update IV in req from last crypto output word for CBC modes
+ */
+ if ((!ctx->aead) && (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CBC) &&
+ (sreq->direction == SAFEXCEL_ENCRYPT)) {
+ /* For encrypt take the last output word */
+ sg_pcopy_to_buffer(dst, sreq->nr_dst, areq->iv,
+ crypto_skcipher_ivsize(skcipher),
+ (cryptlen -
+ crypto_skcipher_ivsize(skcipher)));
}
*should_complete = true;
@@ -380,98 +671,203 @@
unsigned int digestsize, u8 *iv, int *commands,
int *results)
{
+ struct skcipher_request *areq = skcipher_request_cast(base);
+ struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(areq);
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(base->tfm);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
struct safexcel_command_desc *cdesc;
+ struct safexcel_command_desc *first_cdesc = NULL;
struct safexcel_result_desc *rdesc, *first_rdesc = NULL;
struct scatterlist *sg;
- unsigned int totlen = cryptlen + assoclen;
- int nr_src, nr_dst, n_cdesc = 0, n_rdesc = 0, queued = totlen;
- int i, ret = 0;
+ unsigned int totlen;
+ unsigned int totlen_src = cryptlen + assoclen;
+ unsigned int totlen_dst = totlen_src;
+ struct safexcel_token *atoken;
+ int n_cdesc = 0, n_rdesc = 0;
+ int queued, i, ret = 0;
+ bool first = true;
+
+ sreq->nr_src = sg_nents_for_len(src, totlen_src);
+
+ if (ctx->aead) {
+ /*
+ * AEAD has auth tag appended to output for encrypt and
+ * removed from the output for decrypt!
+ */
+ if (sreq->direction == SAFEXCEL_DECRYPT)
+ totlen_dst -= digestsize;
+ else
+ totlen_dst += digestsize;
+
+ memcpy(ctx->base.ctxr->data + ctx->key_len / sizeof(u32),
+ &ctx->base.ipad, ctx->state_sz);
+ if (!ctx->xcm)
+ memcpy(ctx->base.ctxr->data + (ctx->key_len +
+ ctx->state_sz) / sizeof(u32), &ctx->base.opad,
+ ctx->state_sz);
+ } else if ((ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CBC) &&
+ (sreq->direction == SAFEXCEL_DECRYPT)) {
+ /*
+ * Save IV from last crypto input word for CBC modes in decrypt
+ * direction. Need to do this first in case of inplace operation
+ * as it will be overwritten.
+ */
+ sg_pcopy_to_buffer(src, sreq->nr_src, areq->iv,
+ crypto_skcipher_ivsize(skcipher),
+ (totlen_src -
+ crypto_skcipher_ivsize(skcipher)));
+ }
+
+ sreq->nr_dst = sg_nents_for_len(dst, totlen_dst);
+
+ /*
+ * Remember actual input length, source buffer length may be
+ * updated in case of inline operation below.
+ */
+ totlen = totlen_src;
+ queued = totlen_src;
if (src == dst) {
- nr_src = dma_map_sg(priv->dev, src,
- sg_nents_for_len(src, totlen),
- DMA_BIDIRECTIONAL);
- nr_dst = nr_src;
- if (!nr_src)
+ sreq->nr_src = max(sreq->nr_src, sreq->nr_dst);
+ sreq->nr_dst = sreq->nr_src;
+ if (unlikely((totlen_src || totlen_dst) &&
+ (sreq->nr_src <= 0))) {
+ dev_err(priv->dev, "In-place buffer not large enough (need %d bytes)!",
+ max(totlen_src, totlen_dst));
return -EINVAL;
+ }
+ dma_map_sg(priv->dev, src, sreq->nr_src, DMA_BIDIRECTIONAL);
} else {
- nr_src = dma_map_sg(priv->dev, src,
- sg_nents_for_len(src, totlen),
- DMA_TO_DEVICE);
- if (!nr_src)
+ if (unlikely(totlen_src && (sreq->nr_src <= 0))) {
+ dev_err(priv->dev, "Source buffer not large enough (need %d bytes)!",
+ totlen_src);
return -EINVAL;
+ }
+ dma_map_sg(priv->dev, src, sreq->nr_src, DMA_TO_DEVICE);
- nr_dst = dma_map_sg(priv->dev, dst,
- sg_nents_for_len(dst, totlen),
- DMA_FROM_DEVICE);
- if (!nr_dst) {
- dma_unmap_sg(priv->dev, src,
- sg_nents_for_len(src, totlen),
+ if (unlikely(totlen_dst && (sreq->nr_dst <= 0))) {
+ dev_err(priv->dev, "Dest buffer not large enough (need %d bytes)!",
+ totlen_dst);
+ dma_unmap_sg(priv->dev, src, sreq->nr_src,
DMA_TO_DEVICE);
return -EINVAL;
}
+ dma_map_sg(priv->dev, dst, sreq->nr_dst, DMA_FROM_DEVICE);
}
memcpy(ctx->base.ctxr->data, ctx->key, ctx->key_len);
- if (ctx->aead) {
- memcpy(ctx->base.ctxr->data + ctx->key_len / sizeof(u32),
- ctx->ipad, ctx->state_sz);
- memcpy(ctx->base.ctxr->data + (ctx->key_len + ctx->state_sz) / sizeof(u32),
- ctx->opad, ctx->state_sz);
+ if (!totlen) {
+ /*
+ * The EIP97 cannot deal with zero length input packets!
+ * So stuff a dummy command descriptor indicating a 1 byte
+ * (dummy) input packet, using the context record as source.
+ */
+ first_cdesc = safexcel_add_cdesc(priv, ring,
+ 1, 1, ctx->base.ctxr_dma,
+ 1, 1, ctx->base.ctxr_dma,
+ &atoken);
+ if (IS_ERR(first_cdesc)) {
+ /* No space left in the command descriptor ring */
+ ret = PTR_ERR(first_cdesc);
+ goto cdesc_rollback;
+ }
+ n_cdesc = 1;
+ goto skip_cdesc;
}
/* command descriptors */
- for_each_sg(src, sg, nr_src, i) {
+ for_each_sg(src, sg, sreq->nr_src, i) {
int len = sg_dma_len(sg);
/* Do not overflow the request */
- if (queued - len < 0)
+ if (queued < len)
len = queued;
- cdesc = safexcel_add_cdesc(priv, ring, !n_cdesc, !(queued - len),
+ cdesc = safexcel_add_cdesc(priv, ring, !n_cdesc,
+ !(queued - len),
sg_dma_address(sg), len, totlen,
- ctx->base.ctxr_dma);
+ ctx->base.ctxr_dma, &atoken);
if (IS_ERR(cdesc)) {
/* No space left in the command descriptor ring */
ret = PTR_ERR(cdesc);
goto cdesc_rollback;
}
+
+ if (!n_cdesc)
+ first_cdesc = cdesc;
+
n_cdesc++;
-
- if (n_cdesc == 1) {
- safexcel_context_control(ctx, base, sreq, cdesc);
- if (ctx->aead)
- safexcel_aead_token(ctx, iv, cdesc,
- sreq->direction, cryptlen,
- assoclen, digestsize);
- else
- safexcel_skcipher_token(ctx, iv, cdesc,
- cryptlen);
- }
-
queued -= len;
if (!queued)
break;
}
+skip_cdesc:
+ /* Add context control words and token to first command descriptor */
+ safexcel_context_control(ctx, base, sreq, first_cdesc);
+ if (ctx->aead)
+ safexcel_aead_token(ctx, iv, first_cdesc, atoken,
+ sreq->direction, cryptlen,
+ assoclen, digestsize);
+ else
+ safexcel_skcipher_token(ctx, iv, first_cdesc, atoken,
+ cryptlen);
/* result descriptors */
- for_each_sg(dst, sg, nr_dst, i) {
- bool first = !i, last = (i == nr_dst - 1);
+ for_each_sg(dst, sg, sreq->nr_dst, i) {
+ bool last = (i == sreq->nr_dst - 1);
u32 len = sg_dma_len(sg);
- rdesc = safexcel_add_rdesc(priv, ring, first, last,
- sg_dma_address(sg), len);
+ /* only allow the part of the buffer we know we need */
+ if (len > totlen_dst)
+ len = totlen_dst;
+ if (unlikely(!len))
+ break;
+ totlen_dst -= len;
+
+ /* skip over AAD space in buffer - not written */
+ if (assoclen) {
+ if (assoclen >= len) {
+ assoclen -= len;
+ continue;
+ }
+ rdesc = safexcel_add_rdesc(priv, ring, first, last,
+ sg_dma_address(sg) +
+ assoclen,
+ len - assoclen);
+ assoclen = 0;
+ } else {
+ rdesc = safexcel_add_rdesc(priv, ring, first, last,
+ sg_dma_address(sg),
+ len);
+ }
if (IS_ERR(rdesc)) {
/* No space left in the result descriptor ring */
ret = PTR_ERR(rdesc);
goto rdesc_rollback;
}
- if (first)
+ if (first) {
first_rdesc = rdesc;
+ first = false;
+ }
n_rdesc++;
+ }
+
+ if (unlikely(first)) {
+ /*
+ * Special case: AEAD decrypt with only AAD data.
+ * In this case there is NO output data from the engine,
+ * but the engine still needs a result descriptor!
+ * Create a dummy one just for catching the result token.
+ */
+ rdesc = safexcel_add_rdesc(priv, ring, true, true, 0, 0);
+ if (IS_ERR(rdesc)) {
+ /* No space left in the result descriptor ring */
+ ret = PTR_ERR(rdesc);
+ goto rdesc_rollback;
+ }
+ first_rdesc = rdesc;
+ n_rdesc = 1;
}
safexcel_rdr_req_set(priv, ring, first_rdesc, base);
@@ -488,16 +884,10 @@
safexcel_ring_rollback_wptr(priv, &priv->ring[ring].cdr);
if (src == dst) {
- dma_unmap_sg(priv->dev, src,
- sg_nents_for_len(src, totlen),
- DMA_BIDIRECTIONAL);
+ dma_unmap_sg(priv->dev, src, sreq->nr_src, DMA_BIDIRECTIONAL);
} else {
- dma_unmap_sg(priv->dev, src,
- sg_nents_for_len(src, totlen),
- DMA_TO_DEVICE);
- dma_unmap_sg(priv->dev, dst,
- sg_nents_for_len(dst, totlen),
- DMA_FROM_DEVICE);
+ dma_unmap_sg(priv->dev, src, sreq->nr_src, DMA_TO_DEVICE);
+ dma_unmap_sg(priv->dev, dst, sreq->nr_dst, DMA_FROM_DEVICE);
}
return ret;
@@ -612,7 +1002,7 @@
int ring, int *commands, int *results)
{
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(base->tfm);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
int ret;
ret = safexcel_invalidate_cache(base, priv, ctx->base.ctxr_dma, ring);
@@ -631,17 +1021,27 @@
struct skcipher_request *req = skcipher_request_cast(async);
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
struct safexcel_cipher_req *sreq = skcipher_request_ctx(req);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
int ret;
BUG_ON(!(priv->flags & EIP197_TRC_CACHE) && sreq->needs_inv);
- if (sreq->needs_inv)
+ if (sreq->needs_inv) {
ret = safexcel_cipher_send_inv(async, ring, commands, results);
- else
+ } else {
+ struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
+ u8 input_iv[AES_BLOCK_SIZE];
+
+ /*
+ * Save input IV in case of CBC decrypt mode
+ * Will be overwritten with output IV prior to use!
+ */
+ memcpy(input_iv, req->iv, crypto_skcipher_ivsize(skcipher));
+
ret = safexcel_send_req(async, ring, sreq, req->src,
- req->dst, req->cryptlen, 0, 0, req->iv,
+ req->dst, req->cryptlen, 0, 0, input_iv,
commands, results);
+ }
sreq->rdescs = *results;
return ret;
@@ -654,7 +1054,7 @@
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
struct safexcel_cipher_req *sreq = aead_request_ctx(req);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
int ret;
BUG_ON(!(priv->flags & EIP197_TRC_CACHE) && sreq->needs_inv);
@@ -676,7 +1076,7 @@
struct safexcel_inv_result *result)
{
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
int ring = ctx->base.ring;
init_completion(&result->completion);
@@ -736,17 +1136,14 @@
static int safexcel_queue_req(struct crypto_async_request *base,
struct safexcel_cipher_req *sreq,
- enum safexcel_cipher_direction dir, u32 mode,
- enum safexcel_cipher_alg alg)
+ enum safexcel_cipher_direction dir)
{
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(base->tfm);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
int ret, ring;
sreq->needs_inv = false;
sreq->direction = dir;
- ctx->alg = alg;
- ctx->mode = mode;
if (ctx->base.ctxr) {
if (priv->flags & EIP197_TRC_CACHE && ctx->base.needs_inv) {
@@ -774,18 +1171,16 @@
return ret;
}
-static int safexcel_ecb_aes_encrypt(struct skcipher_request *req)
+static int safexcel_encrypt(struct skcipher_request *req)
{
return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_ENCRYPT, CONTEXT_CONTROL_CRYPTO_MODE_ECB,
- SAFEXCEL_AES);
+ SAFEXCEL_ENCRYPT);
}
-static int safexcel_ecb_aes_decrypt(struct skcipher_request *req)
+static int safexcel_decrypt(struct skcipher_request *req)
{
return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_DECRYPT, CONTEXT_CONTROL_CRYPTO_MODE_ECB,
- SAFEXCEL_AES);
+ SAFEXCEL_DECRYPT);
}
static int safexcel_skcipher_cra_init(struct crypto_tfm *tfm)
@@ -798,10 +1193,12 @@
crypto_skcipher_set_reqsize(__crypto_skcipher_cast(tfm),
sizeof(struct safexcel_cipher_req));
- ctx->priv = tmpl->priv;
+ ctx->base.priv = tmpl->priv;
ctx->base.send = safexcel_skcipher_send;
ctx->base.handle_result = safexcel_skcipher_handle_result;
+ ctx->ivmask = EIP197_OPTION_4_TOKEN_IV_CMD;
+ ctx->ctrinit = 1;
return 0;
}
@@ -822,7 +1219,7 @@
static void safexcel_skcipher_cra_exit(struct crypto_tfm *tfm)
{
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
int ret;
if (safexcel_cipher_cra_exit(tfm))
@@ -842,7 +1239,7 @@
static void safexcel_aead_cra_exit(struct crypto_tfm *tfm)
{
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
- struct safexcel_crypto_priv *priv = ctx->priv;
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
int ret;
if (safexcel_cipher_cra_exit(tfm))
@@ -859,106 +1256,246 @@
}
}
+static int safexcel_skcipher_aes_ecb_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_AES;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_ECB;
+ ctx->blocksz = 0;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
struct safexcel_alg_template safexcel_alg_ecb_aes = {
.type = SAFEXCEL_ALG_TYPE_SKCIPHER,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_AES,
.alg.skcipher = {
.setkey = safexcel_skcipher_aes_setkey,
- .encrypt = safexcel_ecb_aes_encrypt,
- .decrypt = safexcel_ecb_aes_decrypt,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.base = {
.cra_name = "ecb(aes)",
.cra_driver_name = "safexcel-ecb-aes",
- .cra_priority = 300,
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
.cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
.cra_alignmask = 0,
- .cra_init = safexcel_skcipher_cra_init,
+ .cra_init = safexcel_skcipher_aes_ecb_cra_init,
.cra_exit = safexcel_skcipher_cra_exit,
.cra_module = THIS_MODULE,
},
},
};
-static int safexcel_cbc_aes_encrypt(struct skcipher_request *req)
+static int safexcel_skcipher_aes_cbc_cra_init(struct crypto_tfm *tfm)
{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_ENCRYPT, CONTEXT_CONTROL_CRYPTO_MODE_CBC,
- SAFEXCEL_AES);
-}
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
-static int safexcel_cbc_aes_decrypt(struct skcipher_request *req)
-{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_DECRYPT, CONTEXT_CONTROL_CRYPTO_MODE_CBC,
- SAFEXCEL_AES);
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_AES;
+ ctx->blocksz = AES_BLOCK_SIZE;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CBC;
+ return 0;
}
struct safexcel_alg_template safexcel_alg_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_SKCIPHER,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_AES,
.alg.skcipher = {
.setkey = safexcel_skcipher_aes_setkey,
- .encrypt = safexcel_cbc_aes_encrypt,
- .decrypt = safexcel_cbc_aes_decrypt,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.base = {
.cra_name = "cbc(aes)",
.cra_driver_name = "safexcel-cbc-aes",
- .cra_priority = 300,
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
.cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
.cra_alignmask = 0,
- .cra_init = safexcel_skcipher_cra_init,
+ .cra_init = safexcel_skcipher_aes_cbc_cra_init,
.cra_exit = safexcel_skcipher_cra_exit,
.cra_module = THIS_MODULE,
},
},
};
-static int safexcel_cbc_des_encrypt(struct skcipher_request *req)
+static int safexcel_skcipher_aes_cfb_cra_init(struct crypto_tfm *tfm)
{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_ENCRYPT, CONTEXT_CONTROL_CRYPTO_MODE_CBC,
- SAFEXCEL_DES);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_AES;
+ ctx->blocksz = AES_BLOCK_SIZE;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CFB;
+ return 0;
}
-static int safexcel_cbc_des_decrypt(struct skcipher_request *req)
+struct safexcel_alg_template safexcel_alg_cfb_aes = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_AES_XFB,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_aes_setkey,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .base = {
+ .cra_name = "cfb(aes)",
+ .cra_driver_name = "safexcel-cfb-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_aes_cfb_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_skcipher_aes_ofb_cra_init(struct crypto_tfm *tfm)
{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_DECRYPT, CONTEXT_CONTROL_CRYPTO_MODE_CBC,
- SAFEXCEL_DES);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_AES;
+ ctx->blocksz = AES_BLOCK_SIZE;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_OFB;
+ return 0;
}
+
+struct safexcel_alg_template safexcel_alg_ofb_aes = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_AES_XFB,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_aes_setkey,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .base = {
+ .cra_name = "ofb(aes)",
+ .cra_driver_name = "safexcel-ofb-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_aes_ofb_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_skcipher_aesctr_setkey(struct crypto_skcipher *ctfm,
+ const u8 *key, unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
+ struct crypto_aes_ctx aes;
+ int ret, i;
+ unsigned int keylen;
+
+ /* last 4 bytes of key are the nonce! */
+ ctx->nonce = *(u32 *)(key + len - CTR_RFC3686_NONCE_SIZE);
+ /* exclude the nonce here */
+ keylen = len - CTR_RFC3686_NONCE_SIZE;
+ ret = aes_expandkey(&aes, key, keylen);
+ if (ret)
+ return ret;
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
+ for (i = 0; i < keylen / sizeof(u32); i++) {
+ if (le32_to_cpu(ctx->key[i]) != aes.key_enc[i]) {
+ ctx->base.needs_inv = true;
+ break;
+ }
+ }
+ }
+
+ for (i = 0; i < keylen / sizeof(u32); i++)
+ ctx->key[i] = cpu_to_le32(aes.key_enc[i]);
+
+ ctx->key_len = keylen;
+
+ memzero_explicit(&aes, sizeof(aes));
+ return 0;
+}
+
+static int safexcel_skcipher_aes_ctr_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_AES;
+ ctx->blocksz = AES_BLOCK_SIZE;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_ctr_aes = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_AES,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_aesctr_setkey,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
+ /* Add nonce size */
+ .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,
+ .base = {
+ .cra_name = "rfc3686(ctr(aes))",
+ .cra_driver_name = "safexcel-ctr-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_aes_ctr_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
static int safexcel_des_setkey(struct crypto_skcipher *ctfm, const u8 *key,
unsigned int len)
{
- struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
- struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
- u32 tmp[DES_EXPKEY_WORDS];
+ struct safexcel_cipher_ctx *ctx = crypto_skcipher_ctx(ctfm);
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
int ret;
- if (len != DES_KEY_SIZE) {
- crypto_skcipher_set_flags(ctfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
-
- ret = des_ekey(tmp, key);
- if (!ret && (tfm->crt_flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
- tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
- return -EINVAL;
- }
+ ret = verify_skcipher_des_key(ctfm, key);
+ if (ret)
+ return ret;
/* if context exits and key changed, need to invalidate it */
- if (ctx->base.ctxr_dma)
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma)
if (memcmp(ctx->key, key, len))
ctx->base.needs_inv = true;
@@ -968,170 +1505,176 @@
return 0;
}
+static int safexcel_skcipher_des_cbc_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_DES;
+ ctx->blocksz = DES_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CBC;
+ return 0;
+}
+
struct safexcel_alg_template safexcel_alg_cbc_des = {
.type = SAFEXCEL_ALG_TYPE_SKCIPHER,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_DES,
.alg.skcipher = {
.setkey = safexcel_des_setkey,
- .encrypt = safexcel_cbc_des_encrypt,
- .decrypt = safexcel_cbc_des_decrypt,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.ivsize = DES_BLOCK_SIZE,
.base = {
.cra_name = "cbc(des)",
.cra_driver_name = "safexcel-cbc-des",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC |
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = DES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
.cra_alignmask = 0,
- .cra_init = safexcel_skcipher_cra_init,
+ .cra_init = safexcel_skcipher_des_cbc_cra_init,
.cra_exit = safexcel_skcipher_cra_exit,
.cra_module = THIS_MODULE,
},
},
};
-static int safexcel_ecb_des_encrypt(struct skcipher_request *req)
+static int safexcel_skcipher_des_ecb_cra_init(struct crypto_tfm *tfm)
{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_ENCRYPT, CONTEXT_CONTROL_CRYPTO_MODE_ECB,
- SAFEXCEL_DES);
-}
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
-static int safexcel_ecb_des_decrypt(struct skcipher_request *req)
-{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_DECRYPT, CONTEXT_CONTROL_CRYPTO_MODE_ECB,
- SAFEXCEL_DES);
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_DES;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_ECB;
+ ctx->blocksz = 0;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
}
struct safexcel_alg_template safexcel_alg_ecb_des = {
.type = SAFEXCEL_ALG_TYPE_SKCIPHER,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_DES,
.alg.skcipher = {
.setkey = safexcel_des_setkey,
- .encrypt = safexcel_ecb_des_encrypt,
- .decrypt = safexcel_ecb_des_decrypt,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
- .ivsize = DES_BLOCK_SIZE,
.base = {
.cra_name = "ecb(des)",
.cra_driver_name = "safexcel-ecb-des",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC |
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = DES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
.cra_alignmask = 0,
- .cra_init = safexcel_skcipher_cra_init,
+ .cra_init = safexcel_skcipher_des_ecb_cra_init,
.cra_exit = safexcel_skcipher_cra_exit,
.cra_module = THIS_MODULE,
},
},
};
-static int safexcel_cbc_des3_ede_encrypt(struct skcipher_request *req)
-{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_ENCRYPT, CONTEXT_CONTROL_CRYPTO_MODE_CBC,
- SAFEXCEL_3DES);
-}
-
-static int safexcel_cbc_des3_ede_decrypt(struct skcipher_request *req)
-{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_DECRYPT, CONTEXT_CONTROL_CRYPTO_MODE_CBC,
- SAFEXCEL_3DES);
-}
-
static int safexcel_des3_ede_setkey(struct crypto_skcipher *ctfm,
const u8 *key, unsigned int len)
{
- struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
- struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct safexcel_cipher_ctx *ctx = crypto_skcipher_ctx(ctfm);
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
+ int err;
- if (len != DES3_EDE_KEY_SIZE) {
- crypto_skcipher_set_flags(ctfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
+ err = verify_skcipher_des3_key(ctfm, key);
+ if (err)
+ return err;
/* if context exits and key changed, need to invalidate it */
- if (ctx->base.ctxr_dma) {
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma)
if (memcmp(ctx->key, key, len))
ctx->base.needs_inv = true;
- }
memcpy(ctx->key, key, len);
-
ctx->key_len = len;
return 0;
}
+static int safexcel_skcipher_des3_cbc_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_3DES;
+ ctx->blocksz = DES3_EDE_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CBC;
+ return 0;
+}
+
struct safexcel_alg_template safexcel_alg_cbc_des3_ede = {
.type = SAFEXCEL_ALG_TYPE_SKCIPHER,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_DES,
.alg.skcipher = {
.setkey = safexcel_des3_ede_setkey,
- .encrypt = safexcel_cbc_des3_ede_encrypt,
- .decrypt = safexcel_cbc_des3_ede_decrypt,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
.min_keysize = DES3_EDE_KEY_SIZE,
.max_keysize = DES3_EDE_KEY_SIZE,
.ivsize = DES3_EDE_BLOCK_SIZE,
.base = {
.cra_name = "cbc(des3_ede)",
.cra_driver_name = "safexcel-cbc-des3_ede",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC |
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
.cra_alignmask = 0,
- .cra_init = safexcel_skcipher_cra_init,
+ .cra_init = safexcel_skcipher_des3_cbc_cra_init,
.cra_exit = safexcel_skcipher_cra_exit,
.cra_module = THIS_MODULE,
},
},
};
-static int safexcel_ecb_des3_ede_encrypt(struct skcipher_request *req)
+static int safexcel_skcipher_des3_ecb_cra_init(struct crypto_tfm *tfm)
{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_ENCRYPT, CONTEXT_CONTROL_CRYPTO_MODE_ECB,
- SAFEXCEL_3DES);
-}
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
-static int safexcel_ecb_des3_ede_decrypt(struct skcipher_request *req)
-{
- return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
- SAFEXCEL_DECRYPT, CONTEXT_CONTROL_CRYPTO_MODE_ECB,
- SAFEXCEL_3DES);
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_3DES;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_ECB;
+ ctx->blocksz = 0;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
}
struct safexcel_alg_template safexcel_alg_ecb_des3_ede = {
.type = SAFEXCEL_ALG_TYPE_SKCIPHER,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_DES,
.alg.skcipher = {
.setkey = safexcel_des3_ede_setkey,
- .encrypt = safexcel_ecb_des3_ede_encrypt,
- .decrypt = safexcel_ecb_des3_ede_decrypt,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
.min_keysize = DES3_EDE_KEY_SIZE,
.max_keysize = DES3_EDE_KEY_SIZE,
- .ivsize = DES3_EDE_BLOCK_SIZE,
.base = {
.cra_name = "ecb(des3_ede)",
.cra_driver_name = "safexcel-ecb-des3_ede",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC |
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
.cra_alignmask = 0,
- .cra_init = safexcel_skcipher_cra_init,
+ .cra_init = safexcel_skcipher_des3_ecb_cra_init,
.cra_exit = safexcel_skcipher_cra_exit,
.cra_module = THIS_MODULE,
},
@@ -1142,16 +1685,14 @@
{
struct safexcel_cipher_req *creq = aead_request_ctx(req);
- return safexcel_queue_req(&req->base, creq, SAFEXCEL_ENCRYPT,
- CONTEXT_CONTROL_CRYPTO_MODE_CBC, SAFEXCEL_AES);
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_ENCRYPT);
}
static int safexcel_aead_decrypt(struct aead_request *req)
{
struct safexcel_cipher_req *creq = aead_request_ctx(req);
- return safexcel_queue_req(&req->base, creq, SAFEXCEL_DECRYPT,
- CONTEXT_CONTROL_CRYPTO_MODE_CBC, SAFEXCEL_AES);
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_DECRYPT);
}
static int safexcel_aead_cra_init(struct crypto_tfm *tfm)
@@ -1164,8 +1705,13 @@
crypto_aead_set_reqsize(__crypto_aead_cast(tfm),
sizeof(struct safexcel_cipher_req));
- ctx->priv = tmpl->priv;
+ ctx->base.priv = tmpl->priv;
+ ctx->alg = SAFEXCEL_AES; /* default */
+ ctx->blocksz = AES_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_4_TOKEN_IV_CMD;
+ ctx->ctrinit = 1;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CBC; /* default */
ctx->aead = true;
ctx->base.send = safexcel_aead_send;
ctx->base.handle_result = safexcel_aead_handle_result;
@@ -1184,9 +1730,9 @@
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA1,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
+ .setkey = safexcel_aead_setkey,
.encrypt = safexcel_aead_encrypt,
.decrypt = safexcel_aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
@@ -1194,8 +1740,9 @@
.base = {
.cra_name = "authenc(hmac(sha1),cbc(aes))",
.cra_driver_name = "safexcel-authenc-hmac-sha1-cbc-aes",
- .cra_priority = 300,
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
.cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
@@ -1219,9 +1766,9 @@
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA2_256,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
+ .setkey = safexcel_aead_setkey,
.encrypt = safexcel_aead_encrypt,
.decrypt = safexcel_aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
@@ -1229,8 +1776,9 @@
.base = {
.cra_name = "authenc(hmac(sha256),cbc(aes))",
.cra_driver_name = "safexcel-authenc-hmac-sha256-cbc-aes",
- .cra_priority = 300,
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
.cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
@@ -1254,9 +1802,9 @@
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA2_256,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
+ .setkey = safexcel_aead_setkey,
.encrypt = safexcel_aead_encrypt,
.decrypt = safexcel_aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
@@ -1264,8 +1812,9 @@
.base = {
.cra_name = "authenc(hmac(sha224),cbc(aes))",
.cra_driver_name = "safexcel-authenc-hmac-sha224-cbc-aes",
- .cra_priority = 300,
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
.cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
@@ -1289,9 +1838,9 @@
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA2_512,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
+ .setkey = safexcel_aead_setkey,
.encrypt = safexcel_aead_encrypt,
.decrypt = safexcel_aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
@@ -1299,8 +1848,9 @@
.base = {
.cra_name = "authenc(hmac(sha512),cbc(aes))",
.cra_driver_name = "safexcel-authenc-hmac-sha512-cbc-aes",
- .cra_priority = 300,
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
.cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
@@ -1324,9 +1874,9 @@
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
- .engines = EIP97IES | EIP197B | EIP197D,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA2_512,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
+ .setkey = safexcel_aead_setkey,
.encrypt = safexcel_aead_encrypt,
.decrypt = safexcel_aead_decrypt,
.ivsize = AES_BLOCK_SIZE,
@@ -1334,8 +1884,9 @@
.base = {
.cra_name = "authenc(hmac(sha384),cbc(aes))",
.cra_driver_name = "safexcel-authenc-hmac-sha384-cbc-aes",
- .cra_priority = 300,
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
.cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
CRYPTO_ALG_KERN_DRIVER_ONLY,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
@@ -1346,3 +1897,1858 @@
},
},
};
+
+static int safexcel_aead_sha1_des3_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha1_cra_init(tfm);
+ ctx->alg = SAFEXCEL_3DES; /* override default */
+ ctx->blocksz = DES3_EDE_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_des3_ede = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA1,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha1),cbc(des3_ede))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha1-cbc-des3_ede",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha1_des3_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha256_des3_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha256_cra_init(tfm);
+ ctx->alg = SAFEXCEL_3DES; /* override default */
+ ctx->blocksz = DES3_EDE_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_des3_ede = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA2_256,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha256),cbc(des3_ede))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha256-cbc-des3_ede",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha256_des3_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha224_des3_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha224_cra_init(tfm);
+ ctx->alg = SAFEXCEL_3DES; /* override default */
+ ctx->blocksz = DES3_EDE_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_cbc_des3_ede = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA2_256,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA224_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha224),cbc(des3_ede))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha224-cbc-des3_ede",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha224_des3_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha512_des3_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha512_cra_init(tfm);
+ ctx->alg = SAFEXCEL_3DES; /* override default */
+ ctx->blocksz = DES3_EDE_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_cbc_des3_ede = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA2_512,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA512_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha512),cbc(des3_ede))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha512-cbc-des3_ede",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha512_des3_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha384_des3_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha384_cra_init(tfm);
+ ctx->alg = SAFEXCEL_3DES; /* override default */
+ ctx->blocksz = DES3_EDE_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_des3_ede = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA2_512,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha384),cbc(des3_ede))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha384-cbc-des3_ede",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha384_des3_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha1_des_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha1_cra_init(tfm);
+ ctx->alg = SAFEXCEL_DES; /* override default */
+ ctx->blocksz = DES_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_des = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA1,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha1),cbc(des))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha1-cbc-des",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha1_des_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha256_des_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha256_cra_init(tfm);
+ ctx->alg = SAFEXCEL_DES; /* override default */
+ ctx->blocksz = DES_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_des = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA2_256,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha256),cbc(des))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha256-cbc-des",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha256_des_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha224_des_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha224_cra_init(tfm);
+ ctx->alg = SAFEXCEL_DES; /* override default */
+ ctx->blocksz = DES_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_cbc_des = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA2_256,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA224_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha224),cbc(des))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha224-cbc-des",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha224_des_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha512_des_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha512_cra_init(tfm);
+ ctx->alg = SAFEXCEL_DES; /* override default */
+ ctx->blocksz = DES_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_cbc_des = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA2_512,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA512_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha512),cbc(des))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha512-cbc-des",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha512_des_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha384_des_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha384_cra_init(tfm);
+ ctx->alg = SAFEXCEL_DES; /* override default */
+ ctx->blocksz = DES_BLOCK_SIZE;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_des = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA2_512,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha384),cbc(des))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha384-cbc-des",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha384_des_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha1_ctr_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha1_cra_init(tfm);
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD; /* override default */
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_ctr_aes = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA1,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = CTR_RFC3686_IV_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha1),rfc3686(ctr(aes)))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha1-ctr-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha1_ctr_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha256_ctr_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha256_cra_init(tfm);
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD; /* override default */
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_ctr_aes = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA2_256,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = CTR_RFC3686_IV_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha256),rfc3686(ctr(aes)))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha256-ctr-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha256_ctr_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha224_ctr_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha224_cra_init(tfm);
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD; /* override default */
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_ctr_aes = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA2_256,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = CTR_RFC3686_IV_SIZE,
+ .maxauthsize = SHA224_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha224),rfc3686(ctr(aes)))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha224-ctr-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha224_ctr_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha512_ctr_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha512_cra_init(tfm);
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD; /* override default */
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_ctr_aes = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA2_512,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = CTR_RFC3686_IV_SIZE,
+ .maxauthsize = SHA512_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha512),rfc3686(ctr(aes)))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha512-ctr-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha512_ctr_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sha384_ctr_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha384_cra_init(tfm);
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD; /* override default */
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_ctr_aes = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_SHA2_512,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = CTR_RFC3686_IV_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha384),rfc3686(ctr(aes)))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha384-ctr-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha384_ctr_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_skcipher_aesxts_setkey(struct crypto_skcipher *ctfm,
+ const u8 *key, unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
+ struct crypto_aes_ctx aes;
+ int ret, i;
+ unsigned int keylen;
+
+ /* Check for illegal XTS keys */
+ ret = xts_verify_key(ctfm, key, len);
+ if (ret)
+ return ret;
+
+ /* Only half of the key data is cipher key */
+ keylen = (len >> 1);
+ ret = aes_expandkey(&aes, key, keylen);
+ if (ret)
+ return ret;
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
+ for (i = 0; i < keylen / sizeof(u32); i++) {
+ if (le32_to_cpu(ctx->key[i]) != aes.key_enc[i]) {
+ ctx->base.needs_inv = true;
+ break;
+ }
+ }
+ }
+
+ for (i = 0; i < keylen / sizeof(u32); i++)
+ ctx->key[i] = cpu_to_le32(aes.key_enc[i]);
+
+ /* The other half is the tweak key */
+ ret = aes_expandkey(&aes, (u8 *)(key + keylen), keylen);
+ if (ret)
+ return ret;
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
+ for (i = 0; i < keylen / sizeof(u32); i++) {
+ if (le32_to_cpu(ctx->key[i + keylen / sizeof(u32)]) !=
+ aes.key_enc[i]) {
+ ctx->base.needs_inv = true;
+ break;
+ }
+ }
+ }
+
+ for (i = 0; i < keylen / sizeof(u32); i++)
+ ctx->key[i + keylen / sizeof(u32)] =
+ cpu_to_le32(aes.key_enc[i]);
+
+ ctx->key_len = keylen << 1;
+
+ memzero_explicit(&aes, sizeof(aes));
+ return 0;
+}
+
+static int safexcel_skcipher_aes_xts_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_AES;
+ ctx->blocksz = AES_BLOCK_SIZE;
+ ctx->xts = 1;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_XTS;
+ return 0;
+}
+
+static int safexcel_encrypt_xts(struct skcipher_request *req)
+{
+ if (req->cryptlen < XTS_BLOCK_SIZE)
+ return -EINVAL;
+ return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
+ SAFEXCEL_ENCRYPT);
+}
+
+static int safexcel_decrypt_xts(struct skcipher_request *req)
+{
+ if (req->cryptlen < XTS_BLOCK_SIZE)
+ return -EINVAL;
+ return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
+ SAFEXCEL_DECRYPT);
+}
+
+struct safexcel_alg_template safexcel_alg_xts_aes = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_AES_XTS,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_aesxts_setkey,
+ .encrypt = safexcel_encrypt_xts,
+ .decrypt = safexcel_decrypt_xts,
+ /* XTS actually uses 2 AES keys glued together */
+ .min_keysize = AES_MIN_KEY_SIZE * 2,
+ .max_keysize = AES_MAX_KEY_SIZE * 2,
+ .ivsize = XTS_BLOCK_SIZE,
+ .base = {
+ .cra_name = "xts(aes)",
+ .cra_driver_name = "safexcel-xts-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = XTS_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_aes_xts_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_gcm_setkey(struct crypto_aead *ctfm, const u8 *key,
+ unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
+ struct crypto_aes_ctx aes;
+ u32 hashkey[AES_BLOCK_SIZE >> 2];
+ int ret, i;
+
+ ret = aes_expandkey(&aes, key, len);
+ if (ret) {
+ memzero_explicit(&aes, sizeof(aes));
+ return ret;
+ }
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
+ for (i = 0; i < len / sizeof(u32); i++) {
+ if (le32_to_cpu(ctx->key[i]) != aes.key_enc[i]) {
+ ctx->base.needs_inv = true;
+ break;
+ }
+ }
+ }
+
+ for (i = 0; i < len / sizeof(u32); i++)
+ ctx->key[i] = cpu_to_le32(aes.key_enc[i]);
+
+ ctx->key_len = len;
+
+ /* Compute hash key by encrypting zeroes with cipher key */
+ crypto_cipher_clear_flags(ctx->hkaes, CRYPTO_TFM_REQ_MASK);
+ crypto_cipher_set_flags(ctx->hkaes, crypto_aead_get_flags(ctfm) &
+ CRYPTO_TFM_REQ_MASK);
+ ret = crypto_cipher_setkey(ctx->hkaes, key, len);
+ if (ret)
+ return ret;
+
+ memset(hashkey, 0, AES_BLOCK_SIZE);
+ crypto_cipher_encrypt_one(ctx->hkaes, (u8 *)hashkey, (u8 *)hashkey);
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
+ for (i = 0; i < AES_BLOCK_SIZE / sizeof(u32); i++) {
+ if (be32_to_cpu(ctx->base.ipad.be[i]) != hashkey[i]) {
+ ctx->base.needs_inv = true;
+ break;
+ }
+ }
+ }
+
+ for (i = 0; i < AES_BLOCK_SIZE / sizeof(u32); i++)
+ ctx->base.ipad.be[i] = cpu_to_be32(hashkey[i]);
+
+ memzero_explicit(hashkey, AES_BLOCK_SIZE);
+ memzero_explicit(&aes, sizeof(aes));
+ return 0;
+}
+
+static int safexcel_aead_gcm_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_cra_init(tfm);
+ ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_GHASH;
+ ctx->state_sz = GHASH_BLOCK_SIZE;
+ ctx->xcm = EIP197_XCM_MODE_GCM;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_XCM; /* override default */
+
+ ctx->hkaes = crypto_alloc_cipher("aes", 0, 0);
+ return PTR_ERR_OR_ZERO(ctx->hkaes);
+}
+
+static void safexcel_aead_gcm_cra_exit(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_free_cipher(ctx->hkaes);
+ safexcel_aead_cra_exit(tfm);
+}
+
+static int safexcel_aead_gcm_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ return crypto_gcm_check_authsize(authsize);
+}
+
+struct safexcel_alg_template safexcel_alg_gcm = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_GHASH,
+ .alg.aead = {
+ .setkey = safexcel_aead_gcm_setkey,
+ .setauthsize = safexcel_aead_gcm_setauthsize,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = GCM_AES_IV_SIZE,
+ .maxauthsize = GHASH_DIGEST_SIZE,
+ .base = {
+ .cra_name = "gcm(aes)",
+ .cra_driver_name = "safexcel-gcm-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_gcm_cra_init,
+ .cra_exit = safexcel_aead_gcm_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_ccm_setkey(struct crypto_aead *ctfm, const u8 *key,
+ unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
+ struct crypto_aes_ctx aes;
+ int ret, i;
+
+ ret = aes_expandkey(&aes, key, len);
+ if (ret) {
+ memzero_explicit(&aes, sizeof(aes));
+ return ret;
+ }
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
+ for (i = 0; i < len / sizeof(u32); i++) {
+ if (le32_to_cpu(ctx->key[i]) != aes.key_enc[i]) {
+ ctx->base.needs_inv = true;
+ break;
+ }
+ }
+ }
+
+ for (i = 0; i < len / sizeof(u32); i++) {
+ ctx->key[i] = cpu_to_le32(aes.key_enc[i]);
+ ctx->base.ipad.be[i + 2 * AES_BLOCK_SIZE / sizeof(u32)] =
+ cpu_to_be32(aes.key_enc[i]);
+ }
+
+ ctx->key_len = len;
+ ctx->state_sz = 2 * AES_BLOCK_SIZE + len;
+
+ if (len == AES_KEYSIZE_192)
+ ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_XCBC192;
+ else if (len == AES_KEYSIZE_256)
+ ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_XCBC256;
+ else
+ ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_XCBC128;
+
+ memzero_explicit(&aes, sizeof(aes));
+ return 0;
+}
+
+static int safexcel_aead_ccm_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_cra_init(tfm);
+ ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_XCBC128;
+ ctx->state_sz = 3 * AES_BLOCK_SIZE;
+ ctx->xcm = EIP197_XCM_MODE_CCM;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_XCM; /* override default */
+ ctx->ctrinit = 0;
+ return 0;
+}
+
+static int safexcel_aead_ccm_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ /* Borrowed from crypto/ccm.c */
+ switch (authsize) {
+ case 4:
+ case 6:
+ case 8:
+ case 10:
+ case 12:
+ case 14:
+ case 16:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int safexcel_ccm_encrypt(struct aead_request *req)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+
+ if (req->iv[0] < 1 || req->iv[0] > 7)
+ return -EINVAL;
+
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_ENCRYPT);
+}
+
+static int safexcel_ccm_decrypt(struct aead_request *req)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+
+ if (req->iv[0] < 1 || req->iv[0] > 7)
+ return -EINVAL;
+
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_DECRYPT);
+}
+
+struct safexcel_alg_template safexcel_alg_ccm = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_CBC_MAC_ALL,
+ .alg.aead = {
+ .setkey = safexcel_aead_ccm_setkey,
+ .setauthsize = safexcel_aead_ccm_setauthsize,
+ .encrypt = safexcel_ccm_encrypt,
+ .decrypt = safexcel_ccm_decrypt,
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = AES_BLOCK_SIZE,
+ .base = {
+ .cra_name = "ccm(aes)",
+ .cra_driver_name = "safexcel-ccm-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_ccm_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static void safexcel_chacha20_setkey(struct safexcel_cipher_ctx *ctx,
+ const u8 *key)
+{
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma)
+ if (memcmp(ctx->key, key, CHACHA_KEY_SIZE))
+ ctx->base.needs_inv = true;
+
+ memcpy(ctx->key, key, CHACHA_KEY_SIZE);
+ ctx->key_len = CHACHA_KEY_SIZE;
+}
+
+static int safexcel_skcipher_chacha20_setkey(struct crypto_skcipher *ctfm,
+ const u8 *key, unsigned int len)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_skcipher_ctx(ctfm);
+
+ if (len != CHACHA_KEY_SIZE)
+ return -EINVAL;
+
+ safexcel_chacha20_setkey(ctx, key);
+
+ return 0;
+}
+
+static int safexcel_skcipher_chacha20_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_CHACHA20;
+ ctx->ctrinit = 0;
+ ctx->mode = CONTEXT_CONTROL_CHACHA20_MODE_256_32;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_chacha20 = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_CHACHA20,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_chacha20_setkey,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .base = {
+ .cra_name = "chacha20",
+ .cra_driver_name = "safexcel-chacha20",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_chacha20_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_chachapoly_setkey(struct crypto_aead *ctfm,
+ const u8 *key, unsigned int len)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_aead_ctx(ctfm);
+
+ if (ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP &&
+ len > EIP197_AEAD_IPSEC_NONCE_SIZE) {
+ /* ESP variant has nonce appended to key */
+ len -= EIP197_AEAD_IPSEC_NONCE_SIZE;
+ ctx->nonce = *(u32 *)(key + len);
+ }
+ if (len != CHACHA_KEY_SIZE)
+ return -EINVAL;
+
+ safexcel_chacha20_setkey(ctx, key);
+
+ return 0;
+}
+
+static int safexcel_aead_chachapoly_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ if (authsize != POLY1305_DIGEST_SIZE)
+ return -EINVAL;
+ return 0;
+}
+
+static int safexcel_aead_chachapoly_crypt(struct aead_request *req,
+ enum safexcel_cipher_direction dir)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct crypto_tfm *tfm = crypto_aead_tfm(aead);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct aead_request *subreq = aead_request_ctx(req);
+ u32 key[CHACHA_KEY_SIZE / sizeof(u32) + 1];
+ int ret = 0;
+
+ /*
+ * Instead of wasting time detecting umpteen silly corner cases,
+ * just dump all "small" requests to the fallback implementation.
+ * HW would not be faster on such small requests anyway.
+ */
+ if (likely((ctx->aead != EIP197_AEAD_TYPE_IPSEC_ESP ||
+ req->assoclen >= EIP197_AEAD_IPSEC_IV_SIZE) &&
+ req->cryptlen > POLY1305_DIGEST_SIZE)) {
+ return safexcel_queue_req(&req->base, creq, dir);
+ }
+
+ /* HW cannot do full (AAD+payload) zero length, use fallback */
+ memcpy(key, ctx->key, CHACHA_KEY_SIZE);
+ if (ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP) {
+ /* ESP variant has nonce appended to the key */
+ key[CHACHA_KEY_SIZE / sizeof(u32)] = ctx->nonce;
+ ret = crypto_aead_setkey(ctx->fback, (u8 *)key,
+ CHACHA_KEY_SIZE +
+ EIP197_AEAD_IPSEC_NONCE_SIZE);
+ } else {
+ ret = crypto_aead_setkey(ctx->fback, (u8 *)key,
+ CHACHA_KEY_SIZE);
+ }
+ if (ret) {
+ crypto_aead_clear_flags(aead, CRYPTO_TFM_REQ_MASK);
+ crypto_aead_set_flags(aead, crypto_aead_get_flags(ctx->fback) &
+ CRYPTO_TFM_REQ_MASK);
+ return ret;
+ }
+
+ aead_request_set_tfm(subreq, ctx->fback);
+ aead_request_set_callback(subreq, req->base.flags, req->base.complete,
+ req->base.data);
+ aead_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
+ req->iv);
+ aead_request_set_ad(subreq, req->assoclen);
+
+ return (dir == SAFEXCEL_ENCRYPT) ?
+ crypto_aead_encrypt(subreq) :
+ crypto_aead_decrypt(subreq);
+}
+
+static int safexcel_aead_chachapoly_encrypt(struct aead_request *req)
+{
+ return safexcel_aead_chachapoly_crypt(req, SAFEXCEL_ENCRYPT);
+}
+
+static int safexcel_aead_chachapoly_decrypt(struct aead_request *req)
+{
+ return safexcel_aead_chachapoly_crypt(req, SAFEXCEL_DECRYPT);
+}
+
+static int safexcel_aead_fallback_cra_init(struct crypto_tfm *tfm)
+{
+ struct crypto_aead *aead = __crypto_aead_cast(tfm);
+ struct aead_alg *alg = crypto_aead_alg(aead);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_cra_init(tfm);
+
+ /* Allocate fallback implementation */
+ ctx->fback = crypto_alloc_aead(alg->base.cra_name, 0,
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(ctx->fback))
+ return PTR_ERR(ctx->fback);
+
+ crypto_aead_set_reqsize(aead, max(sizeof(struct safexcel_cipher_req),
+ sizeof(struct aead_request) +
+ crypto_aead_reqsize(ctx->fback)));
+
+ return 0;
+}
+
+static int safexcel_aead_chachapoly_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_fallback_cra_init(tfm);
+ ctx->alg = SAFEXCEL_CHACHA20;
+ ctx->mode = CONTEXT_CONTROL_CHACHA20_MODE_256_32 |
+ CONTEXT_CONTROL_CHACHA20_MODE_CALC_OTK;
+ ctx->ctrinit = 0;
+ ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_POLY1305;
+ ctx->state_sz = 0; /* Precomputed by HW */
+ return 0;
+}
+
+static void safexcel_aead_fallback_cra_exit(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_free_aead(ctx->fback);
+ safexcel_aead_cra_exit(tfm);
+}
+
+struct safexcel_alg_template safexcel_alg_chachapoly = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_CHACHA20 | SAFEXCEL_ALG_POLY1305,
+ .alg.aead = {
+ .setkey = safexcel_aead_chachapoly_setkey,
+ .setauthsize = safexcel_aead_chachapoly_setauthsize,
+ .encrypt = safexcel_aead_chachapoly_encrypt,
+ .decrypt = safexcel_aead_chachapoly_decrypt,
+ .ivsize = CHACHAPOLY_IV_SIZE,
+ .maxauthsize = POLY1305_DIGEST_SIZE,
+ .base = {
+ .cra_name = "rfc7539(chacha20,poly1305)",
+ .cra_driver_name = "safexcel-chacha20-poly1305",
+ /* +1 to put it above HW chacha + SW poly */
+ .cra_priority = SAFEXCEL_CRA_PRIORITY + 1,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_chachapoly_cra_init,
+ .cra_exit = safexcel_aead_fallback_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_chachapolyesp_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ int ret;
+
+ ret = safexcel_aead_chachapoly_cra_init(tfm);
+ ctx->aead = EIP197_AEAD_TYPE_IPSEC_ESP;
+ ctx->aadskip = EIP197_AEAD_IPSEC_IV_SIZE;
+ return ret;
+}
+
+struct safexcel_alg_template safexcel_alg_chachapoly_esp = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_CHACHA20 | SAFEXCEL_ALG_POLY1305,
+ .alg.aead = {
+ .setkey = safexcel_aead_chachapoly_setkey,
+ .setauthsize = safexcel_aead_chachapoly_setauthsize,
+ .encrypt = safexcel_aead_chachapoly_encrypt,
+ .decrypt = safexcel_aead_chachapoly_decrypt,
+ .ivsize = CHACHAPOLY_IV_SIZE - EIP197_AEAD_IPSEC_NONCE_SIZE,
+ .maxauthsize = POLY1305_DIGEST_SIZE,
+ .base = {
+ .cra_name = "rfc7539esp(chacha20,poly1305)",
+ .cra_driver_name = "safexcel-chacha20-poly1305-esp",
+ /* +1 to put it above HW chacha + SW poly */
+ .cra_priority = SAFEXCEL_CRA_PRIORITY + 1,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_chachapolyesp_cra_init,
+ .cra_exit = safexcel_aead_fallback_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_skcipher_sm4_setkey(struct crypto_skcipher *ctfm,
+ const u8 *key, unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct safexcel_crypto_priv *priv = ctx->base.priv;
+
+ if (len != SM4_KEY_SIZE)
+ return -EINVAL;
+
+ if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma)
+ if (memcmp(ctx->key, key, SM4_KEY_SIZE))
+ ctx->base.needs_inv = true;
+
+ memcpy(ctx->key, key, SM4_KEY_SIZE);
+ ctx->key_len = SM4_KEY_SIZE;
+
+ return 0;
+}
+
+static int safexcel_sm4_blk_encrypt(struct skcipher_request *req)
+{
+ /* Workaround for HW bug: EIP96 4.3 does not report blocksize error */
+ if (req->cryptlen & (SM4_BLOCK_SIZE - 1))
+ return -EINVAL;
+ else
+ return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
+ SAFEXCEL_ENCRYPT);
+}
+
+static int safexcel_sm4_blk_decrypt(struct skcipher_request *req)
+{
+ /* Workaround for HW bug: EIP96 4.3 does not report blocksize error */
+ if (req->cryptlen & (SM4_BLOCK_SIZE - 1))
+ return -EINVAL;
+ else
+ return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
+ SAFEXCEL_DECRYPT);
+}
+
+static int safexcel_skcipher_sm4_ecb_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_SM4;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_ECB;
+ ctx->blocksz = 0;
+ ctx->ivmask = EIP197_OPTION_2_TOKEN_IV_CMD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_ecb_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_SM4,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_sm4_setkey,
+ .encrypt = safexcel_sm4_blk_encrypt,
+ .decrypt = safexcel_sm4_blk_decrypt,
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .base = {
+ .cra_name = "ecb(sm4)",
+ .cra_driver_name = "safexcel-ecb-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_sm4_ecb_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_skcipher_sm4_cbc_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_SM4;
+ ctx->blocksz = SM4_BLOCK_SIZE;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CBC;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_cbc_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_SM4,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_sm4_setkey,
+ .encrypt = safexcel_sm4_blk_encrypt,
+ .decrypt = safexcel_sm4_blk_decrypt,
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .base = {
+ .cra_name = "cbc(sm4)",
+ .cra_driver_name = "safexcel-cbc-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_sm4_cbc_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_skcipher_sm4_ofb_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_SM4;
+ ctx->blocksz = SM4_BLOCK_SIZE;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_OFB;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_ofb_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_SM4 | SAFEXCEL_ALG_AES_XFB,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_sm4_setkey,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .base = {
+ .cra_name = "ofb(sm4)",
+ .cra_driver_name = "safexcel-ofb-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_sm4_ofb_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_skcipher_sm4_cfb_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_SM4;
+ ctx->blocksz = SM4_BLOCK_SIZE;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CFB;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_cfb_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_SM4 | SAFEXCEL_ALG_AES_XFB,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_sm4_setkey,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .base = {
+ .cra_name = "cfb(sm4)",
+ .cra_driver_name = "safexcel-cfb-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_sm4_cfb_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_skcipher_sm4ctr_setkey(struct crypto_skcipher *ctfm,
+ const u8 *key, unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ /* last 4 bytes of key are the nonce! */
+ ctx->nonce = *(u32 *)(key + len - CTR_RFC3686_NONCE_SIZE);
+ /* exclude the nonce here */
+ len -= CTR_RFC3686_NONCE_SIZE;
+
+ return safexcel_skcipher_sm4_setkey(ctfm, key, len);
+}
+
+static int safexcel_skcipher_sm4_ctr_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_skcipher_cra_init(tfm);
+ ctx->alg = SAFEXCEL_SM4;
+ ctx->blocksz = SM4_BLOCK_SIZE;
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_ctr_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_SKCIPHER,
+ .algo_mask = SAFEXCEL_ALG_SM4,
+ .alg.skcipher = {
+ .setkey = safexcel_skcipher_sm4ctr_setkey,
+ .encrypt = safexcel_encrypt,
+ .decrypt = safexcel_decrypt,
+ /* Add nonce size */
+ .min_keysize = SM4_KEY_SIZE + CTR_RFC3686_NONCE_SIZE,
+ .max_keysize = SM4_KEY_SIZE + CTR_RFC3686_NONCE_SIZE,
+ .ivsize = CTR_RFC3686_IV_SIZE,
+ .base = {
+ .cra_name = "rfc3686(ctr(sm4))",
+ .cra_driver_name = "safexcel-ctr-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_skcipher_sm4_ctr_cra_init,
+ .cra_exit = safexcel_skcipher_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sm4_blk_encrypt(struct aead_request *req)
+{
+ /* Workaround for HW bug: EIP96 4.3 does not report blocksize error */
+ if (req->cryptlen & (SM4_BLOCK_SIZE - 1))
+ return -EINVAL;
+
+ return safexcel_queue_req(&req->base, aead_request_ctx(req),
+ SAFEXCEL_ENCRYPT);
+}
+
+static int safexcel_aead_sm4_blk_decrypt(struct aead_request *req)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+
+ /* Workaround for HW bug: EIP96 4.3 does not report blocksize error */
+ if ((req->cryptlen - crypto_aead_authsize(tfm)) & (SM4_BLOCK_SIZE - 1))
+ return -EINVAL;
+
+ return safexcel_queue_req(&req->base, aead_request_ctx(req),
+ SAFEXCEL_DECRYPT);
+}
+
+static int safexcel_aead_sm4cbc_sha1_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_cra_init(tfm);
+ ctx->alg = SAFEXCEL_SM4;
+ ctx->blocksz = SM4_BLOCK_SIZE;
+ ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA1;
+ ctx->state_sz = SHA1_DIGEST_SIZE;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_SM4 | SAFEXCEL_ALG_SHA1,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_sm4_blk_encrypt,
+ .decrypt = safexcel_aead_sm4_blk_decrypt,
+ .ivsize = SM4_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha1),cbc(sm4))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha1-cbc-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sm4cbc_sha1_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_fallback_setkey(struct crypto_aead *ctfm,
+ const u8 *key, unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ /* Keep fallback cipher synchronized */
+ return crypto_aead_setkey(ctx->fback, (u8 *)key, len) ?:
+ safexcel_aead_setkey(ctfm, key, len);
+}
+
+static int safexcel_aead_fallback_setauthsize(struct crypto_aead *ctfm,
+ unsigned int authsize)
+{
+ struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ /* Keep fallback cipher synchronized */
+ return crypto_aead_setauthsize(ctx->fback, authsize);
+}
+
+static int safexcel_aead_fallback_crypt(struct aead_request *req,
+ enum safexcel_cipher_direction dir)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct crypto_tfm *tfm = crypto_aead_tfm(aead);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct aead_request *subreq = aead_request_ctx(req);
+
+ aead_request_set_tfm(subreq, ctx->fback);
+ aead_request_set_callback(subreq, req->base.flags, req->base.complete,
+ req->base.data);
+ aead_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
+ req->iv);
+ aead_request_set_ad(subreq, req->assoclen);
+
+ return (dir == SAFEXCEL_ENCRYPT) ?
+ crypto_aead_encrypt(subreq) :
+ crypto_aead_decrypt(subreq);
+}
+
+static int safexcel_aead_sm4cbc_sm3_encrypt(struct aead_request *req)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+
+ /* Workaround for HW bug: EIP96 4.3 does not report blocksize error */
+ if (req->cryptlen & (SM4_BLOCK_SIZE - 1))
+ return -EINVAL;
+ else if (req->cryptlen || req->assoclen) /* If input length > 0 only */
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_ENCRYPT);
+
+ /* HW cannot do full (AAD+payload) zero length, use fallback */
+ return safexcel_aead_fallback_crypt(req, SAFEXCEL_ENCRYPT);
+}
+
+static int safexcel_aead_sm4cbc_sm3_decrypt(struct aead_request *req)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+
+ /* Workaround for HW bug: EIP96 4.3 does not report blocksize error */
+ if ((req->cryptlen - crypto_aead_authsize(tfm)) & (SM4_BLOCK_SIZE - 1))
+ return -EINVAL;
+ else if (req->cryptlen > crypto_aead_authsize(tfm) || req->assoclen)
+ /* If input length > 0 only */
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_DECRYPT);
+
+ /* HW cannot do full (AAD+payload) zero length, use fallback */
+ return safexcel_aead_fallback_crypt(req, SAFEXCEL_DECRYPT);
+}
+
+static int safexcel_aead_sm4cbc_sm3_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_fallback_cra_init(tfm);
+ ctx->alg = SAFEXCEL_SM4;
+ ctx->blocksz = SM4_BLOCK_SIZE;
+ ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_SM3;
+ ctx->state_sz = SM3_DIGEST_SIZE;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sm3_cbc_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_SM4 | SAFEXCEL_ALG_SM3,
+ .alg.aead = {
+ .setkey = safexcel_aead_fallback_setkey,
+ .setauthsize = safexcel_aead_fallback_setauthsize,
+ .encrypt = safexcel_aead_sm4cbc_sm3_encrypt,
+ .decrypt = safexcel_aead_sm4cbc_sm3_decrypt,
+ .ivsize = SM4_BLOCK_SIZE,
+ .maxauthsize = SM3_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sm3),cbc(sm4))",
+ .cra_driver_name = "safexcel-authenc-hmac-sm3-cbc-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sm4cbc_sm3_cra_init,
+ .cra_exit = safexcel_aead_fallback_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sm4ctr_sha1_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sm4cbc_sha1_cra_init(tfm);
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_ctr_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_SM4 | SAFEXCEL_ALG_SHA1,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = CTR_RFC3686_IV_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha1),rfc3686(ctr(sm4)))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha1-ctr-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sm4ctr_sha1_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_aead_sm4ctr_sm3_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sm4cbc_sm3_cra_init(tfm);
+ ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sm3_ctr_sm4 = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_SM4 | SAFEXCEL_ALG_SM3,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = CTR_RFC3686_IV_SIZE,
+ .maxauthsize = SM3_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sm3),rfc3686(ctr(sm4)))",
+ .cra_driver_name = "safexcel-authenc-hmac-sm3-ctr-sm4",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sm4ctr_sm3_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
+static int safexcel_rfc4106_gcm_setkey(struct crypto_aead *ctfm, const u8 *key,
+ unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ /* last 4 bytes of key are the nonce! */
+ ctx->nonce = *(u32 *)(key + len - CTR_RFC3686_NONCE_SIZE);
+
+ len -= CTR_RFC3686_NONCE_SIZE;
+ return safexcel_aead_gcm_setkey(ctfm, key, len);
+}
+
+static int safexcel_rfc4106_gcm_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ return crypto_rfc4106_check_authsize(authsize);
+}
+
+static int safexcel_rfc4106_encrypt(struct aead_request *req)
+{
+ return crypto_ipsec_check_assoclen(req->assoclen) ?:
+ safexcel_aead_encrypt(req);
+}
+
+static int safexcel_rfc4106_decrypt(struct aead_request *req)
+{
+ return crypto_ipsec_check_assoclen(req->assoclen) ?:
+ safexcel_aead_decrypt(req);
+}
+
+static int safexcel_rfc4106_gcm_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ int ret;
+
+ ret = safexcel_aead_gcm_cra_init(tfm);
+ ctx->aead = EIP197_AEAD_TYPE_IPSEC_ESP;
+ ctx->aadskip = EIP197_AEAD_IPSEC_IV_SIZE;
+ return ret;
+}
+
+struct safexcel_alg_template safexcel_alg_rfc4106_gcm = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_GHASH,
+ .alg.aead = {
+ .setkey = safexcel_rfc4106_gcm_setkey,
+ .setauthsize = safexcel_rfc4106_gcm_setauthsize,
+ .encrypt = safexcel_rfc4106_encrypt,
+ .decrypt = safexcel_rfc4106_decrypt,
+ .ivsize = GCM_RFC4106_IV_SIZE,
+ .maxauthsize = GHASH_DIGEST_SIZE,
+ .base = {
+ .cra_name = "rfc4106(gcm(aes))",
+ .cra_driver_name = "safexcel-rfc4106-gcm-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_rfc4106_gcm_cra_init,
+ .cra_exit = safexcel_aead_gcm_cra_exit,
+ },
+ },
+};
+
+static int safexcel_rfc4543_gcm_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ if (authsize != GHASH_DIGEST_SIZE)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int safexcel_rfc4543_gcm_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ int ret;
+
+ ret = safexcel_aead_gcm_cra_init(tfm);
+ ctx->aead = EIP197_AEAD_TYPE_IPSEC_ESP_GMAC;
+ return ret;
+}
+
+struct safexcel_alg_template safexcel_alg_rfc4543_gcm = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_GHASH,
+ .alg.aead = {
+ .setkey = safexcel_rfc4106_gcm_setkey,
+ .setauthsize = safexcel_rfc4543_gcm_setauthsize,
+ .encrypt = safexcel_rfc4106_encrypt,
+ .decrypt = safexcel_rfc4106_decrypt,
+ .ivsize = GCM_RFC4543_IV_SIZE,
+ .maxauthsize = GHASH_DIGEST_SIZE,
+ .base = {
+ .cra_name = "rfc4543(gcm(aes))",
+ .cra_driver_name = "safexcel-rfc4543-gcm-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_rfc4543_gcm_cra_init,
+ .cra_exit = safexcel_aead_gcm_cra_exit,
+ },
+ },
+};
+
+static int safexcel_rfc4309_ccm_setkey(struct crypto_aead *ctfm, const u8 *key,
+ unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ /* First byte of the nonce = L = always 3 for RFC4309 (4 byte ctr) */
+ *(u8 *)&ctx->nonce = EIP197_AEAD_IPSEC_COUNTER_SIZE - 1;
+ /* last 3 bytes of key are the nonce! */
+ memcpy((u8 *)&ctx->nonce + 1, key + len -
+ EIP197_AEAD_IPSEC_CCM_NONCE_SIZE,
+ EIP197_AEAD_IPSEC_CCM_NONCE_SIZE);
+
+ len -= EIP197_AEAD_IPSEC_CCM_NONCE_SIZE;
+ return safexcel_aead_ccm_setkey(ctfm, key, len);
+}
+
+static int safexcel_rfc4309_ccm_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ /* Borrowed from crypto/ccm.c */
+ switch (authsize) {
+ case 8:
+ case 12:
+ case 16:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int safexcel_rfc4309_ccm_encrypt(struct aead_request *req)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+
+ /* Borrowed from crypto/ccm.c */
+ if (req->assoclen != 16 && req->assoclen != 20)
+ return -EINVAL;
+
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_ENCRYPT);
+}
+
+static int safexcel_rfc4309_ccm_decrypt(struct aead_request *req)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+
+ /* Borrowed from crypto/ccm.c */
+ if (req->assoclen != 16 && req->assoclen != 20)
+ return -EINVAL;
+
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_DECRYPT);
+}
+
+static int safexcel_rfc4309_ccm_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ int ret;
+
+ ret = safexcel_aead_ccm_cra_init(tfm);
+ ctx->aead = EIP197_AEAD_TYPE_IPSEC_ESP;
+ ctx->aadskip = EIP197_AEAD_IPSEC_IV_SIZE;
+ return ret;
+}
+
+struct safexcel_alg_template safexcel_alg_rfc4309_ccm = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_CBC_MAC_ALL,
+ .alg.aead = {
+ .setkey = safexcel_rfc4309_ccm_setkey,
+ .setauthsize = safexcel_rfc4309_ccm_setauthsize,
+ .encrypt = safexcel_rfc4309_ccm_encrypt,
+ .decrypt = safexcel_rfc4309_ccm_decrypt,
+ .ivsize = EIP197_AEAD_IPSEC_IV_SIZE,
+ .maxauthsize = AES_BLOCK_SIZE,
+ .base = {
+ .cra_name = "rfc4309(ccm(aes))",
+ .cra_driver_name = "safexcel-rfc4309-ccm-aes",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_rfc4309_ccm_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
--
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