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63cdd870ab
The code in the current implementation of safexcel_hmac_alg_setkey can be reused by safexcel_cipher. This patch does just that by renaming the previous safexcel_hmac_setkey to __safexcel_hmac_setkey. The now-shared safexcel_hmac_alg_setkey becomes safexcel_hmac_setkey and a new safexcel_hmac_alg_setkey has been added for use by ahash transforms. As a result safexcel_aead_setkey's stack frame has been reduced by about half in size, or about 512 bytes. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
3755 lines
108 KiB
C
3755 lines
108 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2017 Marvell
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*
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* Antoine Tenart <antoine.tenart@free-electrons.com>
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*/
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#include <asm/unaligned.h>
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#include <linux/device.h>
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#include <linux/dma-mapping.h>
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#include <linux/dmapool.h>
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#include <crypto/aead.h>
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#include <crypto/aes.h>
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#include <crypto/authenc.h>
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#include <crypto/chacha.h>
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#include <crypto/ctr.h>
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#include <crypto/internal/des.h>
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#include <crypto/gcm.h>
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#include <crypto/ghash.h>
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#include <crypto/poly1305.h>
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#include <crypto/sha.h>
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#include <crypto/sm3.h>
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#include <crypto/sm4.h>
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#include <crypto/xts.h>
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#include <crypto/skcipher.h>
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#include <crypto/internal/aead.h>
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#include <crypto/internal/skcipher.h>
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#include "safexcel.h"
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enum safexcel_cipher_direction {
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SAFEXCEL_ENCRYPT,
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SAFEXCEL_DECRYPT,
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};
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enum safexcel_cipher_alg {
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SAFEXCEL_DES,
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SAFEXCEL_3DES,
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SAFEXCEL_AES,
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SAFEXCEL_CHACHA20,
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SAFEXCEL_SM4,
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};
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struct safexcel_cipher_ctx {
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struct safexcel_context base;
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struct safexcel_crypto_priv *priv;
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u32 mode;
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enum safexcel_cipher_alg alg;
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u8 aead; /* !=0=AEAD, 2=IPSec ESP AEAD, 3=IPsec ESP GMAC */
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u8 xcm; /* 0=authenc, 1=GCM, 2 reserved for CCM */
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u8 aadskip;
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u8 blocksz;
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u32 ivmask;
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u32 ctrinit;
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__le32 key[16];
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u32 nonce;
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unsigned int key_len, xts;
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/* All the below is AEAD specific */
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u32 hash_alg;
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u32 state_sz;
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struct crypto_cipher *hkaes;
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struct crypto_aead *fback;
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};
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struct safexcel_cipher_req {
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enum safexcel_cipher_direction direction;
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/* Number of result descriptors associated to the request */
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unsigned int rdescs;
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bool needs_inv;
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int nr_src, nr_dst;
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};
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static int safexcel_skcipher_iv(struct safexcel_cipher_ctx *ctx, u8 *iv,
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struct safexcel_command_desc *cdesc)
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{
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if (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD) {
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cdesc->control_data.options |= EIP197_OPTION_4_TOKEN_IV_CMD;
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/* 32 bit nonce */
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cdesc->control_data.token[0] = ctx->nonce;
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/* 64 bit IV part */
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memcpy(&cdesc->control_data.token[1], iv, 8);
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/* 32 bit counter, start at 0 or 1 (big endian!) */
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cdesc->control_data.token[3] =
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(__force u32)cpu_to_be32(ctx->ctrinit);
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return 4;
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}
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if (ctx->alg == SAFEXCEL_CHACHA20) {
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cdesc->control_data.options |= EIP197_OPTION_4_TOKEN_IV_CMD;
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/* 96 bit nonce part */
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memcpy(&cdesc->control_data.token[0], &iv[4], 12);
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/* 32 bit counter */
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cdesc->control_data.token[3] = *(u32 *)iv;
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return 4;
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}
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cdesc->control_data.options |= ctx->ivmask;
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memcpy(cdesc->control_data.token, iv, ctx->blocksz);
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return ctx->blocksz / sizeof(u32);
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}
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static void safexcel_skcipher_token(struct safexcel_cipher_ctx *ctx, u8 *iv,
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struct safexcel_command_desc *cdesc,
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struct safexcel_token *atoken,
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u32 length)
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{
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struct safexcel_token *token;
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int ivlen;
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ivlen = safexcel_skcipher_iv(ctx, iv, cdesc);
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if (ivlen == 4) {
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/* No space in cdesc, instruction moves to atoken */
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cdesc->additional_cdata_size = 1;
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token = atoken;
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} else {
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/* Everything fits in cdesc */
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token = (struct safexcel_token *)(cdesc->control_data.token + 2);
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/* Need to pad with NOP */
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eip197_noop_token(&token[1]);
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}
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token->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
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token->packet_length = length;
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token->stat = EIP197_TOKEN_STAT_LAST_PACKET |
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EIP197_TOKEN_STAT_LAST_HASH;
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token->instructions = EIP197_TOKEN_INS_LAST |
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EIP197_TOKEN_INS_TYPE_CRYPTO |
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EIP197_TOKEN_INS_TYPE_OUTPUT;
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}
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static void safexcel_aead_iv(struct safexcel_cipher_ctx *ctx, u8 *iv,
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struct safexcel_command_desc *cdesc)
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{
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if (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD ||
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ctx->aead & EIP197_AEAD_TYPE_IPSEC_ESP) { /* _ESP and _ESP_GMAC */
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/* 32 bit nonce */
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cdesc->control_data.token[0] = ctx->nonce;
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/* 64 bit IV part */
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memcpy(&cdesc->control_data.token[1], iv, 8);
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/* 32 bit counter, start at 0 or 1 (big endian!) */
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cdesc->control_data.token[3] =
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(__force u32)cpu_to_be32(ctx->ctrinit);
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return;
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}
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if (ctx->xcm == EIP197_XCM_MODE_GCM || ctx->alg == SAFEXCEL_CHACHA20) {
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/* 96 bit IV part */
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memcpy(&cdesc->control_data.token[0], iv, 12);
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/* 32 bit counter, start at 0 or 1 (big endian!) */
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cdesc->control_data.token[3] =
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(__force u32)cpu_to_be32(ctx->ctrinit);
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return;
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}
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/* CBC */
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memcpy(cdesc->control_data.token, iv, ctx->blocksz);
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}
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static void safexcel_aead_token(struct safexcel_cipher_ctx *ctx, u8 *iv,
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struct safexcel_command_desc *cdesc,
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struct safexcel_token *atoken,
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enum safexcel_cipher_direction direction,
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u32 cryptlen, u32 assoclen, u32 digestsize)
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{
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struct safexcel_token *aadref;
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int atoksize = 2; /* Start with minimum size */
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int assocadj = assoclen - ctx->aadskip, aadalign;
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/* Always 4 dwords of embedded IV for AEAD modes */
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cdesc->control_data.options |= EIP197_OPTION_4_TOKEN_IV_CMD;
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if (direction == SAFEXCEL_DECRYPT)
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cryptlen -= digestsize;
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if (unlikely(ctx->xcm == EIP197_XCM_MODE_CCM)) {
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/* Construct IV block B0 for the CBC-MAC */
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u8 *final_iv = (u8 *)cdesc->control_data.token;
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u8 *cbcmaciv = (u8 *)&atoken[1];
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__le32 *aadlen = (__le32 *)&atoken[5];
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if (ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP) {
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/* Length + nonce */
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cdesc->control_data.token[0] = ctx->nonce;
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/* Fixup flags byte */
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*(__le32 *)cbcmaciv =
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cpu_to_le32(ctx->nonce |
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((assocadj > 0) << 6) |
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((digestsize - 2) << 2));
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/* 64 bit IV part */
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memcpy(&cdesc->control_data.token[1], iv, 8);
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memcpy(cbcmaciv + 4, iv, 8);
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/* Start counter at 0 */
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cdesc->control_data.token[3] = 0;
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/* Message length */
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*(__be32 *)(cbcmaciv + 12) = cpu_to_be32(cryptlen);
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} else {
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/* Variable length IV part */
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memcpy(final_iv, iv, 15 - iv[0]);
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memcpy(cbcmaciv, iv, 15 - iv[0]);
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/* Start variable length counter at 0 */
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memset(final_iv + 15 - iv[0], 0, iv[0] + 1);
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memset(cbcmaciv + 15 - iv[0], 0, iv[0] - 1);
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/* fixup flags byte */
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cbcmaciv[0] |= ((assocadj > 0) << 6) |
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((digestsize - 2) << 2);
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/* insert lower 2 bytes of message length */
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cbcmaciv[14] = cryptlen >> 8;
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cbcmaciv[15] = cryptlen & 255;
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}
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atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
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atoken->packet_length = AES_BLOCK_SIZE +
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((assocadj > 0) << 1);
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atoken->stat = 0;
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atoken->instructions = EIP197_TOKEN_INS_ORIGIN_TOKEN |
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EIP197_TOKEN_INS_TYPE_HASH;
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if (likely(assocadj)) {
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*aadlen = cpu_to_le32((assocadj >> 8) |
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(assocadj & 255) << 8);
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atoken += 6;
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atoksize += 7;
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} else {
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atoken += 5;
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atoksize += 6;
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}
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/* Process AAD data */
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aadref = atoken;
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atoken->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
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atoken->packet_length = assocadj;
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atoken->stat = 0;
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atoken->instructions = EIP197_TOKEN_INS_TYPE_HASH;
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atoken++;
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/* For CCM only, align AAD data towards hash engine */
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atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
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aadalign = (assocadj + 2) & 15;
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atoken->packet_length = assocadj && aadalign ?
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16 - aadalign :
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0;
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if (likely(cryptlen)) {
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atoken->stat = 0;
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atoken->instructions = EIP197_TOKEN_INS_TYPE_HASH;
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} else {
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atoken->stat = EIP197_TOKEN_STAT_LAST_HASH;
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atoken->instructions = EIP197_TOKEN_INS_LAST |
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EIP197_TOKEN_INS_TYPE_HASH;
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}
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} else {
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safexcel_aead_iv(ctx, iv, cdesc);
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/* Process AAD data */
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aadref = atoken;
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atoken->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
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atoken->packet_length = assocadj;
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atoken->stat = EIP197_TOKEN_STAT_LAST_HASH;
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atoken->instructions = EIP197_TOKEN_INS_LAST |
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EIP197_TOKEN_INS_TYPE_HASH;
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}
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atoken++;
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if (ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP) {
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/* For ESP mode (and not GMAC), skip over the IV */
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atoken->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
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atoken->packet_length = EIP197_AEAD_IPSEC_IV_SIZE;
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atoken->stat = 0;
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atoken->instructions = 0;
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atoken++;
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atoksize++;
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} else if (unlikely(ctx->alg == SAFEXCEL_CHACHA20 &&
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direction == SAFEXCEL_DECRYPT)) {
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/* Poly-chacha decryption needs a dummy NOP here ... */
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atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
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atoken->packet_length = 16; /* According to Op Manual */
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atoken->stat = 0;
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atoken->instructions = 0;
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atoken++;
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atoksize++;
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}
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if (ctx->xcm) {
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/* For GCM and CCM, obtain enc(Y0) */
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atoken->opcode = EIP197_TOKEN_OPCODE_INSERT_REMRES;
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atoken->packet_length = 0;
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atoken->stat = 0;
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atoken->instructions = AES_BLOCK_SIZE;
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atoken++;
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atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
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atoken->packet_length = AES_BLOCK_SIZE;
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atoken->stat = 0;
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atoken->instructions = EIP197_TOKEN_INS_TYPE_OUTPUT |
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EIP197_TOKEN_INS_TYPE_CRYPTO;
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atoken++;
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atoksize += 2;
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}
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if (likely(cryptlen || ctx->alg == SAFEXCEL_CHACHA20)) {
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/* Fixup stat field for AAD direction instruction */
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aadref->stat = 0;
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/* Process crypto data */
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atoken->opcode = EIP197_TOKEN_OPCODE_DIRECTION;
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atoken->packet_length = cryptlen;
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if (unlikely(ctx->aead == EIP197_AEAD_TYPE_IPSEC_ESP_GMAC)) {
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/* Fixup instruction field for AAD dir instruction */
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aadref->instructions = EIP197_TOKEN_INS_TYPE_HASH;
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/* Do not send to crypt engine in case of GMAC */
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atoken->instructions = EIP197_TOKEN_INS_LAST |
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EIP197_TOKEN_INS_TYPE_HASH |
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EIP197_TOKEN_INS_TYPE_OUTPUT;
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} else {
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atoken->instructions = EIP197_TOKEN_INS_LAST |
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EIP197_TOKEN_INS_TYPE_CRYPTO |
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EIP197_TOKEN_INS_TYPE_HASH |
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EIP197_TOKEN_INS_TYPE_OUTPUT;
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}
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cryptlen &= 15;
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if (unlikely(ctx->xcm == EIP197_XCM_MODE_CCM && cryptlen)) {
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atoken->stat = 0;
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/* For CCM only, pad crypto data to the hash engine */
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atoken++;
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atoksize++;
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atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
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atoken->packet_length = 16 - cryptlen;
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atoken->stat = EIP197_TOKEN_STAT_LAST_HASH;
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atoken->instructions = EIP197_TOKEN_INS_TYPE_HASH;
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} else {
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atoken->stat = EIP197_TOKEN_STAT_LAST_HASH;
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}
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atoken++;
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atoksize++;
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}
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if (direction == SAFEXCEL_ENCRYPT) {
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/* Append ICV */
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atoken->opcode = EIP197_TOKEN_OPCODE_INSERT;
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atoken->packet_length = digestsize;
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atoken->stat = EIP197_TOKEN_STAT_LAST_HASH |
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EIP197_TOKEN_STAT_LAST_PACKET;
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atoken->instructions = EIP197_TOKEN_INS_TYPE_OUTPUT |
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EIP197_TOKEN_INS_INSERT_HASH_DIGEST;
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} else {
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/* Extract ICV */
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atoken->opcode = EIP197_TOKEN_OPCODE_RETRIEVE;
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atoken->packet_length = digestsize;
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atoken->stat = EIP197_TOKEN_STAT_LAST_HASH |
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EIP197_TOKEN_STAT_LAST_PACKET;
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atoken->instructions = EIP197_TOKEN_INS_INSERT_HASH_DIGEST;
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atoken++;
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atoksize++;
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/* Verify ICV */
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atoken->opcode = EIP197_TOKEN_OPCODE_VERIFY;
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atoken->packet_length = digestsize |
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EIP197_TOKEN_HASH_RESULT_VERIFY;
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atoken->stat = EIP197_TOKEN_STAT_LAST_HASH |
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EIP197_TOKEN_STAT_LAST_PACKET;
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atoken->instructions = EIP197_TOKEN_INS_TYPE_OUTPUT;
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}
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/* Fixup length of the token in the command descriptor */
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cdesc->additional_cdata_size = atoksize;
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}
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static int safexcel_skcipher_aes_setkey(struct crypto_skcipher *ctfm,
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const u8 *key, unsigned int len)
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{
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struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
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struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
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struct safexcel_crypto_priv *priv = ctx->base.priv;
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struct crypto_aes_ctx aes;
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int ret, i;
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ret = aes_expandkey(&aes, key, len);
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if (ret)
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return ret;
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if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma) {
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for (i = 0; i < len / sizeof(u32); i++) {
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if (le32_to_cpu(ctx->key[i]) != aes.key_enc[i]) {
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ctx->base.needs_inv = true;
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break;
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}
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}
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}
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for (i = 0; i < len / sizeof(u32); i++)
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ctx->key[i] = cpu_to_le32(aes.key_enc[i]);
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ctx->key_len = len;
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memzero_explicit(&aes, sizeof(aes));
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return 0;
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}
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static int safexcel_aead_setkey(struct crypto_aead *ctfm, const u8 *key,
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unsigned int len)
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{
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struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
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struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
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struct safexcel_crypto_priv *priv = ctx->base.priv;
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struct crypto_authenc_keys keys;
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struct crypto_aes_ctx aes;
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int err = -EINVAL, i;
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const char *alg;
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if (unlikely(crypto_authenc_extractkeys(&keys, key, len)))
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goto badkey;
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if (ctx->mode == CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD) {
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/* Must have at least space for the nonce here */
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if (unlikely(keys.enckeylen < CTR_RFC3686_NONCE_SIZE))
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goto badkey;
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/* last 4 bytes of key are the nonce! */
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ctx->nonce = *(u32 *)(keys.enckey + keys.enckeylen -
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CTR_RFC3686_NONCE_SIZE);
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/* exclude the nonce here */
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keys.enckeylen -= CTR_RFC3686_NONCE_SIZE;
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}
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/* Encryption key */
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switch (ctx->alg) {
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case SAFEXCEL_DES:
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err = verify_aead_des_key(ctfm, keys.enckey, keys.enckeylen);
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if (unlikely(err))
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goto badkey;
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break;
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case SAFEXCEL_3DES:
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err = verify_aead_des3_key(ctfm, keys.enckey, keys.enckeylen);
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if (unlikely(err))
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goto badkey;
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break;
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case SAFEXCEL_AES:
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err = aes_expandkey(&aes, keys.enckey, keys.enckeylen);
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if (unlikely(err))
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goto badkey;
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break;
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case SAFEXCEL_SM4:
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if (unlikely(keys.enckeylen != SM4_KEY_SIZE))
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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:
|
|
alg = "safexcel-sha1";
|
|
break;
|
|
case CONTEXT_CONTROL_CRYPTO_ALG_SHA224:
|
|
alg = "safexcel-sha224";
|
|
break;
|
|
case CONTEXT_CONTROL_CRYPTO_ALG_SHA256:
|
|
alg = "safexcel-sha256";
|
|
break;
|
|
case CONTEXT_CONTROL_CRYPTO_ALG_SHA384:
|
|
alg = "safexcel-sha384";
|
|
break;
|
|
case CONTEXT_CONTROL_CRYPTO_ALG_SHA512:
|
|
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;
|
|
}
|
|
|
|
if (safexcel_hmac_setkey(&ctx->base, keys.authkey, keys.authkeylen,
|
|
alg, ctx->state_sz))
|
|
goto badkey;
|
|
|
|
/* Now copy the keys into the context */
|
|
for (i = 0; i < keys.enckeylen / sizeof(u32); i++)
|
|
ctx->key[i] = cpu_to_le32(((u32 *)keys.enckey)[i]);
|
|
ctx->key_len = keys.enckeylen;
|
|
|
|
memzero_explicit(&keys, sizeof(keys));
|
|
return 0;
|
|
|
|
badkey:
|
|
memzero_explicit(&keys, sizeof(keys));
|
|
return err;
|
|
}
|
|
|
|
static int safexcel_context_control(struct safexcel_cipher_ctx *ctx,
|
|
struct crypto_async_request *async,
|
|
struct safexcel_cipher_req *sreq,
|
|
struct safexcel_command_desc *cdesc)
|
|
{
|
|
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) {
|
|
/* 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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
if (ctx->alg == SAFEXCEL_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;
|
|
} else if (ctx->alg == SAFEXCEL_AES) {
|
|
switch (ctx->key_len >> ctx->xts) {
|
|
case AES_KEYSIZE_128:
|
|
cdesc->control_data.control0 |=
|
|
CONTEXT_CONTROL_CRYPTO_ALG_AES128;
|
|
break;
|
|
case AES_KEYSIZE_192:
|
|
cdesc->control_data.control0 |=
|
|
CONTEXT_CONTROL_CRYPTO_ALG_AES192;
|
|
break;
|
|
case AES_KEYSIZE_256:
|
|
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->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;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int safexcel_handle_req_result(struct safexcel_crypto_priv *priv, int ring,
|
|
struct crypto_async_request *async,
|
|
struct scatterlist *src,
|
|
struct scatterlist *dst,
|
|
unsigned int cryptlen,
|
|
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;
|
|
|
|
*ret = 0;
|
|
|
|
if (unlikely(!sreq->rdescs))
|
|
return 0;
|
|
|
|
while (sreq->rdescs--) {
|
|
rdesc = safexcel_ring_next_rptr(priv, &priv->ring[ring].rdr);
|
|
if (IS_ERR(rdesc)) {
|
|
dev_err(priv->dev,
|
|
"cipher: result: could not retrieve the result descriptor\n");
|
|
*ret = PTR_ERR(rdesc);
|
|
break;
|
|
}
|
|
|
|
if (likely(!*ret))
|
|
*ret = safexcel_rdesc_check_errors(priv, rdesc);
|
|
|
|
ndesc++;
|
|
}
|
|
|
|
safexcel_complete(priv, ring);
|
|
|
|
if (src == dst) {
|
|
dma_unmap_sg(priv->dev, src, sreq->nr_src, DMA_BIDIRECTIONAL);
|
|
} else {
|
|
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;
|
|
|
|
return ndesc;
|
|
}
|
|
|
|
static int safexcel_send_req(struct crypto_async_request *base, int ring,
|
|
struct safexcel_cipher_req *sreq,
|
|
struct scatterlist *src, struct scatterlist *dst,
|
|
unsigned int cryptlen, unsigned int assoclen,
|
|
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->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;
|
|
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) {
|
|
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 {
|
|
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);
|
|
|
|
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 (!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, sreq->nr_src, i) {
|
|
int len = sg_dma_len(sg);
|
|
|
|
/* Do not overflow the request */
|
|
if (queued < len)
|
|
len = queued;
|
|
|
|
cdesc = safexcel_add_cdesc(priv, ring, !n_cdesc,
|
|
!(queued - len),
|
|
sg_dma_address(sg), len, totlen,
|
|
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++;
|
|
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, sreq->nr_dst, i) {
|
|
bool last = (i == sreq->nr_dst - 1);
|
|
u32 len = sg_dma_len(sg);
|
|
|
|
/* 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) {
|
|
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);
|
|
|
|
*commands = n_cdesc;
|
|
*results = n_rdesc;
|
|
return 0;
|
|
|
|
rdesc_rollback:
|
|
for (i = 0; i < n_rdesc; i++)
|
|
safexcel_ring_rollback_wptr(priv, &priv->ring[ring].rdr);
|
|
cdesc_rollback:
|
|
for (i = 0; i < n_cdesc; i++)
|
|
safexcel_ring_rollback_wptr(priv, &priv->ring[ring].cdr);
|
|
|
|
if (src == dst) {
|
|
dma_unmap_sg(priv->dev, src, sreq->nr_src, DMA_BIDIRECTIONAL);
|
|
} else {
|
|
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;
|
|
}
|
|
|
|
static int safexcel_handle_inv_result(struct safexcel_crypto_priv *priv,
|
|
int ring,
|
|
struct crypto_async_request *base,
|
|
struct safexcel_cipher_req *sreq,
|
|
bool *should_complete, int *ret)
|
|
{
|
|
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(base->tfm);
|
|
struct safexcel_result_desc *rdesc;
|
|
int ndesc = 0, enq_ret;
|
|
|
|
*ret = 0;
|
|
|
|
if (unlikely(!sreq->rdescs))
|
|
return 0;
|
|
|
|
while (sreq->rdescs--) {
|
|
rdesc = safexcel_ring_next_rptr(priv, &priv->ring[ring].rdr);
|
|
if (IS_ERR(rdesc)) {
|
|
dev_err(priv->dev,
|
|
"cipher: invalidate: could not retrieve the result descriptor\n");
|
|
*ret = PTR_ERR(rdesc);
|
|
break;
|
|
}
|
|
|
|
if (likely(!*ret))
|
|
*ret = safexcel_rdesc_check_errors(priv, rdesc);
|
|
|
|
ndesc++;
|
|
}
|
|
|
|
safexcel_complete(priv, ring);
|
|
|
|
if (ctx->base.exit_inv) {
|
|
dma_pool_free(priv->context_pool, ctx->base.ctxr,
|
|
ctx->base.ctxr_dma);
|
|
|
|
*should_complete = true;
|
|
|
|
return ndesc;
|
|
}
|
|
|
|
ring = safexcel_select_ring(priv);
|
|
ctx->base.ring = ring;
|
|
|
|
spin_lock_bh(&priv->ring[ring].queue_lock);
|
|
enq_ret = crypto_enqueue_request(&priv->ring[ring].queue, base);
|
|
spin_unlock_bh(&priv->ring[ring].queue_lock);
|
|
|
|
if (enq_ret != -EINPROGRESS)
|
|
*ret = enq_ret;
|
|
|
|
queue_work(priv->ring[ring].workqueue,
|
|
&priv->ring[ring].work_data.work);
|
|
|
|
*should_complete = false;
|
|
|
|
return ndesc;
|
|
}
|
|
|
|
static int safexcel_skcipher_handle_result(struct safexcel_crypto_priv *priv,
|
|
int ring,
|
|
struct crypto_async_request *async,
|
|
bool *should_complete, int *ret)
|
|
{
|
|
struct skcipher_request *req = skcipher_request_cast(async);
|
|
struct safexcel_cipher_req *sreq = skcipher_request_ctx(req);
|
|
int err;
|
|
|
|
if (sreq->needs_inv) {
|
|
sreq->needs_inv = false;
|
|
err = safexcel_handle_inv_result(priv, ring, async, sreq,
|
|
should_complete, ret);
|
|
} else {
|
|
err = safexcel_handle_req_result(priv, ring, async, req->src,
|
|
req->dst, req->cryptlen, sreq,
|
|
should_complete, ret);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int safexcel_aead_handle_result(struct safexcel_crypto_priv *priv,
|
|
int ring,
|
|
struct crypto_async_request *async,
|
|
bool *should_complete, int *ret)
|
|
{
|
|
struct aead_request *req = aead_request_cast(async);
|
|
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
|
|
struct safexcel_cipher_req *sreq = aead_request_ctx(req);
|
|
int err;
|
|
|
|
if (sreq->needs_inv) {
|
|
sreq->needs_inv = false;
|
|
err = safexcel_handle_inv_result(priv, ring, async, sreq,
|
|
should_complete, ret);
|
|
} else {
|
|
err = safexcel_handle_req_result(priv, ring, async, req->src,
|
|
req->dst,
|
|
req->cryptlen + crypto_aead_authsize(tfm),
|
|
sreq, should_complete, ret);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int safexcel_cipher_send_inv(struct crypto_async_request *base,
|
|
int ring, int *commands, int *results)
|
|
{
|
|
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(base->tfm);
|
|
struct safexcel_crypto_priv *priv = ctx->base.priv;
|
|
int ret;
|
|
|
|
ret = safexcel_invalidate_cache(base, priv, ctx->base.ctxr_dma, ring);
|
|
if (unlikely(ret))
|
|
return ret;
|
|
|
|
*commands = 1;
|
|
*results = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int safexcel_skcipher_send(struct crypto_async_request *async, int ring,
|
|
int *commands, int *results)
|
|
{
|
|
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->base.priv;
|
|
int ret;
|
|
|
|
BUG_ON(!(priv->flags & EIP197_TRC_CACHE) && sreq->needs_inv);
|
|
|
|
if (sreq->needs_inv) {
|
|
ret = safexcel_cipher_send_inv(async, ring, commands, results);
|
|
} 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, input_iv,
|
|
commands, results);
|
|
}
|
|
|
|
sreq->rdescs = *results;
|
|
return ret;
|
|
}
|
|
|
|
static int safexcel_aead_send(struct crypto_async_request *async, int ring,
|
|
int *commands, int *results)
|
|
{
|
|
struct aead_request *req = aead_request_cast(async);
|
|
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->base.priv;
|
|
int ret;
|
|
|
|
BUG_ON(!(priv->flags & EIP197_TRC_CACHE) && sreq->needs_inv);
|
|
|
|
if (sreq->needs_inv)
|
|
ret = safexcel_cipher_send_inv(async, ring, commands, results);
|
|
else
|
|
ret = safexcel_send_req(async, ring, sreq, req->src, req->dst,
|
|
req->cryptlen, req->assoclen,
|
|
crypto_aead_authsize(tfm), req->iv,
|
|
commands, results);
|
|
sreq->rdescs = *results;
|
|
return ret;
|
|
}
|
|
|
|
static int safexcel_cipher_exit_inv(struct crypto_tfm *tfm,
|
|
struct crypto_async_request *base,
|
|
struct safexcel_cipher_req *sreq,
|
|
struct safexcel_inv_result *result)
|
|
{
|
|
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
|
|
struct safexcel_crypto_priv *priv = ctx->base.priv;
|
|
int ring = ctx->base.ring;
|
|
|
|
init_completion(&result->completion);
|
|
|
|
ctx = crypto_tfm_ctx(base->tfm);
|
|
ctx->base.exit_inv = true;
|
|
sreq->needs_inv = true;
|
|
|
|
spin_lock_bh(&priv->ring[ring].queue_lock);
|
|
crypto_enqueue_request(&priv->ring[ring].queue, base);
|
|
spin_unlock_bh(&priv->ring[ring].queue_lock);
|
|
|
|
queue_work(priv->ring[ring].workqueue,
|
|
&priv->ring[ring].work_data.work);
|
|
|
|
wait_for_completion(&result->completion);
|
|
|
|
if (result->error) {
|
|
dev_warn(priv->dev,
|
|
"cipher: sync: invalidate: completion error %d\n",
|
|
result->error);
|
|
return result->error;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int safexcel_skcipher_exit_inv(struct crypto_tfm *tfm)
|
|
{
|
|
EIP197_REQUEST_ON_STACK(req, skcipher, EIP197_SKCIPHER_REQ_SIZE);
|
|
struct safexcel_cipher_req *sreq = skcipher_request_ctx(req);
|
|
struct safexcel_inv_result result = {};
|
|
|
|
memset(req, 0, sizeof(struct skcipher_request));
|
|
|
|
skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
|
|
safexcel_inv_complete, &result);
|
|
skcipher_request_set_tfm(req, __crypto_skcipher_cast(tfm));
|
|
|
|
return safexcel_cipher_exit_inv(tfm, &req->base, sreq, &result);
|
|
}
|
|
|
|
static int safexcel_aead_exit_inv(struct crypto_tfm *tfm)
|
|
{
|
|
EIP197_REQUEST_ON_STACK(req, aead, EIP197_AEAD_REQ_SIZE);
|
|
struct safexcel_cipher_req *sreq = aead_request_ctx(req);
|
|
struct safexcel_inv_result result = {};
|
|
|
|
memset(req, 0, sizeof(struct aead_request));
|
|
|
|
aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
|
|
safexcel_inv_complete, &result);
|
|
aead_request_set_tfm(req, __crypto_aead_cast(tfm));
|
|
|
|
return safexcel_cipher_exit_inv(tfm, &req->base, sreq, &result);
|
|
}
|
|
|
|
static int safexcel_queue_req(struct crypto_async_request *base,
|
|
struct safexcel_cipher_req *sreq,
|
|
enum safexcel_cipher_direction dir)
|
|
{
|
|
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(base->tfm);
|
|
struct safexcel_crypto_priv *priv = ctx->base.priv;
|
|
int ret, ring;
|
|
|
|
sreq->needs_inv = false;
|
|
sreq->direction = dir;
|
|
|
|
if (ctx->base.ctxr) {
|
|
if (priv->flags & EIP197_TRC_CACHE && ctx->base.needs_inv) {
|
|
sreq->needs_inv = true;
|
|
ctx->base.needs_inv = false;
|
|
}
|
|
} else {
|
|
ctx->base.ring = safexcel_select_ring(priv);
|
|
ctx->base.ctxr = dma_pool_zalloc(priv->context_pool,
|
|
EIP197_GFP_FLAGS(*base),
|
|
&ctx->base.ctxr_dma);
|
|
if (!ctx->base.ctxr)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ring = ctx->base.ring;
|
|
|
|
spin_lock_bh(&priv->ring[ring].queue_lock);
|
|
ret = crypto_enqueue_request(&priv->ring[ring].queue, base);
|
|
spin_unlock_bh(&priv->ring[ring].queue_lock);
|
|
|
|
queue_work(priv->ring[ring].workqueue,
|
|
&priv->ring[ring].work_data.work);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int safexcel_encrypt(struct skcipher_request *req)
|
|
{
|
|
return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
|
|
SAFEXCEL_ENCRYPT);
|
|
}
|
|
|
|
static int safexcel_decrypt(struct skcipher_request *req)
|
|
{
|
|
return safexcel_queue_req(&req->base, skcipher_request_ctx(req),
|
|
SAFEXCEL_DECRYPT);
|
|
}
|
|
|
|
static int safexcel_skcipher_cra_init(struct crypto_tfm *tfm)
|
|
{
|
|
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
|
|
struct safexcel_alg_template *tmpl =
|
|
container_of(tfm->__crt_alg, struct safexcel_alg_template,
|
|
alg.skcipher.base);
|
|
|
|
crypto_skcipher_set_reqsize(__crypto_skcipher_cast(tfm),
|
|
sizeof(struct safexcel_cipher_req));
|
|
|
|
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;
|
|
}
|
|
|
|
static int safexcel_cipher_cra_exit(struct crypto_tfm *tfm)
|
|
{
|
|
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
|
|
|
|
memzero_explicit(ctx->key, sizeof(ctx->key));
|
|
|
|
/* context not allocated, skip invalidation */
|
|
if (!ctx->base.ctxr)
|
|
return -ENOMEM;
|
|
|
|
memzero_explicit(ctx->base.ctxr->data, sizeof(ctx->base.ctxr->data));
|
|
return 0;
|
|
}
|
|
|
|
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->base.priv;
|
|
int ret;
|
|
|
|
if (safexcel_cipher_cra_exit(tfm))
|
|
return;
|
|
|
|
if (priv->flags & EIP197_TRC_CACHE) {
|
|
ret = safexcel_skcipher_exit_inv(tfm);
|
|
if (ret)
|
|
dev_warn(priv->dev, "skcipher: invalidation error %d\n",
|
|
ret);
|
|
} else {
|
|
dma_pool_free(priv->context_pool, ctx->base.ctxr,
|
|
ctx->base.ctxr_dma);
|
|
}
|
|
}
|
|
|
|
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->base.priv;
|
|
int ret;
|
|
|
|
if (safexcel_cipher_cra_exit(tfm))
|
|
return;
|
|
|
|
if (priv->flags & EIP197_TRC_CACHE) {
|
|
ret = safexcel_aead_exit_inv(tfm);
|
|
if (ret)
|
|
dev_warn(priv->dev, "aead: invalidation error %d\n",
|
|
ret);
|
|
} else {
|
|
dma_pool_free(priv->context_pool, ctx->base.ctxr,
|
|
ctx->base.ctxr_dma);
|
|
}
|
|
}
|
|
|
|
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,
|
|
.algo_mask = SAFEXCEL_ALG_AES,
|
|
.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,
|
|
.base = {
|
|
.cra_name = "ecb(aes)",
|
|
.cra_driver_name = "safexcel-ecb-aes",
|
|
.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_aes_ecb_cra_init,
|
|
.cra_exit = safexcel_skcipher_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_skcipher_aes_cbc_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_CBC;
|
|
return 0;
|
|
}
|
|
|
|
struct safexcel_alg_template safexcel_alg_cbc_aes = {
|
|
.type = SAFEXCEL_ALG_TYPE_SKCIPHER,
|
|
.algo_mask = SAFEXCEL_ALG_AES,
|
|
.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 = "cbc(aes)",
|
|
.cra_driver_name = "safexcel-cbc-aes",
|
|
.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_aes_cbc_cra_init,
|
|
.cra_exit = safexcel_skcipher_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_skcipher_aes_cfb_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_CFB;
|
|
return 0;
|
|
}
|
|
|
|
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)
|
|
{
|
|
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 safexcel_cipher_ctx *ctx = crypto_skcipher_ctx(ctfm);
|
|
struct safexcel_crypto_priv *priv = ctx->base.priv;
|
|
int ret;
|
|
|
|
ret = verify_skcipher_des_key(ctfm, key);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* if context exits and key changed, need to invalidate it */
|
|
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_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,
|
|
.algo_mask = SAFEXCEL_ALG_DES,
|
|
.alg.skcipher = {
|
|
.setkey = safexcel_des_setkey,
|
|
.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 = 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_des_cbc_cra_init,
|
|
.cra_exit = safexcel_skcipher_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_skcipher_des_ecb_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->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,
|
|
.algo_mask = SAFEXCEL_ALG_DES,
|
|
.alg.skcipher = {
|
|
.setkey = safexcel_des_setkey,
|
|
.encrypt = safexcel_encrypt,
|
|
.decrypt = safexcel_decrypt,
|
|
.min_keysize = DES_KEY_SIZE,
|
|
.max_keysize = DES_KEY_SIZE,
|
|
.base = {
|
|
.cra_name = "ecb(des)",
|
|
.cra_driver_name = "safexcel-ecb-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_skcipher_des_ecb_cra_init,
|
|
.cra_exit = safexcel_skcipher_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_des3_ede_setkey(struct crypto_skcipher *ctfm,
|
|
const u8 *key, unsigned int len)
|
|
{
|
|
struct safexcel_cipher_ctx *ctx = crypto_skcipher_ctx(ctfm);
|
|
struct safexcel_crypto_priv *priv = ctx->base.priv;
|
|
int err;
|
|
|
|
err = verify_skcipher_des3_key(ctfm, key);
|
|
if (err)
|
|
return err;
|
|
|
|
/* if context exits and key changed, need to invalidate it */
|
|
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,
|
|
.algo_mask = SAFEXCEL_ALG_DES,
|
|
.alg.skcipher = {
|
|
.setkey = safexcel_des3_ede_setkey,
|
|
.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 = 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_des3_cbc_cra_init,
|
|
.cra_exit = safexcel_skcipher_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_skcipher_des3_ecb_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->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,
|
|
.algo_mask = SAFEXCEL_ALG_DES,
|
|
.alg.skcipher = {
|
|
.setkey = safexcel_des3_ede_setkey,
|
|
.encrypt = safexcel_encrypt,
|
|
.decrypt = safexcel_decrypt,
|
|
.min_keysize = DES3_EDE_KEY_SIZE,
|
|
.max_keysize = DES3_EDE_KEY_SIZE,
|
|
.base = {
|
|
.cra_name = "ecb(des3_ede)",
|
|
.cra_driver_name = "safexcel-ecb-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_skcipher_des3_ecb_cra_init,
|
|
.cra_exit = safexcel_skcipher_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_aead_encrypt(struct aead_request *req)
|
|
{
|
|
struct safexcel_cipher_req *creq = aead_request_ctx(req);
|
|
|
|
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);
|
|
}
|
|
|
|
static int safexcel_aead_cra_init(struct crypto_tfm *tfm)
|
|
{
|
|
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
|
|
struct safexcel_alg_template *tmpl =
|
|
container_of(tfm->__crt_alg, struct safexcel_alg_template,
|
|
alg.aead.base);
|
|
|
|
crypto_aead_set_reqsize(__crypto_aead_cast(tfm),
|
|
sizeof(struct safexcel_cipher_req));
|
|
|
|
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;
|
|
return 0;
|
|
}
|
|
|
|
static int safexcel_aead_sha1_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_SHA1;
|
|
ctx->state_sz = SHA1_DIGEST_SIZE;
|
|
return 0;
|
|
}
|
|
|
|
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_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 = AES_BLOCK_SIZE,
|
|
.maxauthsize = SHA1_DIGEST_SIZE,
|
|
.base = {
|
|
.cra_name = "authenc(hmac(sha1),cbc(aes))",
|
|
.cra_driver_name = "safexcel-authenc-hmac-sha1-cbc-aes",
|
|
.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_aead_sha1_cra_init,
|
|
.cra_exit = safexcel_aead_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_aead_sha256_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_SHA256;
|
|
ctx->state_sz = SHA256_DIGEST_SIZE;
|
|
return 0;
|
|
}
|
|
|
|
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_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 = AES_BLOCK_SIZE,
|
|
.maxauthsize = SHA256_DIGEST_SIZE,
|
|
.base = {
|
|
.cra_name = "authenc(hmac(sha256),cbc(aes))",
|
|
.cra_driver_name = "safexcel-authenc-hmac-sha256-cbc-aes",
|
|
.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_aead_sha256_cra_init,
|
|
.cra_exit = safexcel_aead_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_aead_sha224_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_SHA224;
|
|
ctx->state_sz = SHA256_DIGEST_SIZE;
|
|
return 0;
|
|
}
|
|
|
|
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_cbc_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 = AES_BLOCK_SIZE,
|
|
.maxauthsize = SHA224_DIGEST_SIZE,
|
|
.base = {
|
|
.cra_name = "authenc(hmac(sha224),cbc(aes))",
|
|
.cra_driver_name = "safexcel-authenc-hmac-sha224-cbc-aes",
|
|
.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_aead_sha224_cra_init,
|
|
.cra_exit = safexcel_aead_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_aead_sha512_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_SHA512;
|
|
ctx->state_sz = SHA512_DIGEST_SIZE;
|
|
return 0;
|
|
}
|
|
|
|
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_cbc_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 = AES_BLOCK_SIZE,
|
|
.maxauthsize = SHA512_DIGEST_SIZE,
|
|
.base = {
|
|
.cra_name = "authenc(hmac(sha512),cbc(aes))",
|
|
.cra_driver_name = "safexcel-authenc-hmac-sha512-cbc-aes",
|
|
.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_aead_sha512_cra_init,
|
|
.cra_exit = safexcel_aead_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int safexcel_aead_sha384_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_SHA384;
|
|
ctx->state_sz = SHA512_DIGEST_SIZE;
|
|
return 0;
|
|
}
|
|
|
|
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_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 = AES_BLOCK_SIZE,
|
|
.maxauthsize = SHA384_DIGEST_SIZE,
|
|
.base = {
|
|
.cra_name = "authenc(hmac(sha384),cbc(aes))",
|
|
.cra_driver_name = "safexcel-authenc-hmac-sha384-cbc-aes",
|
|
.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_aead_sha384_cra_init,
|
|
.cra_exit = safexcel_aead_cra_exit,
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
},
|
|
};
|
|
|
|
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,
|
|
},
|
|
},
|
|
};
|