diff options
Diffstat (limited to 'package/kernel/lantiq/ltq-deu')
| -rw-r--r-- | package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c | 52 |
1 files changed, 21 insertions, 31 deletions
diff --git a/package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c b/package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c index 62ce563181..ab30293340 100644 --- a/package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c +++ b/package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c @@ -251,25 +251,24 @@ void ifx_deu_aes (void *ctx_arg, u8 *out_arg, const u8 *in_arg, /* To handle all non-aligned bytes (not aligned to 16B size) */ if (byte_cnt) { - u8 *input[16]; - u8 *output[16]; + u8 temparea[16] = {0,}; - memcpy(input, ((u32 *) in_arg + (i * 4)), byte_cnt); + memcpy(temparea, ((u32 *) in_arg + (i * 4)), byte_cnt); - aes->ID3R = INPUT_ENDIAN_SWAP(*((u32 *) input + (i * 4) + 0)); - aes->ID2R = INPUT_ENDIAN_SWAP(*((u32 *) input + (i * 4) + 1)); - aes->ID1R = INPUT_ENDIAN_SWAP(*((u32 *) input + (i * 4) + 2)); - aes->ID0R = INPUT_ENDIAN_SWAP(*((u32 *) input + (i * 4) + 3)); /* start crypto */ + aes->ID3R = INPUT_ENDIAN_SWAP(*((u32 *) temparea + 0)); + aes->ID2R = INPUT_ENDIAN_SWAP(*((u32 *) temparea + 1)); + aes->ID1R = INPUT_ENDIAN_SWAP(*((u32 *) temparea + 2)); + aes->ID0R = INPUT_ENDIAN_SWAP(*((u32 *) temparea + 3)); /* start crypto */ while (aes->controlr.BUS) { } - *((volatile u32 *) output + (i * 4) + 0) = aes->OD3R; - *((volatile u32 *) output + (i * 4) + 1) = aes->OD2R; - *((volatile u32 *) output + (i * 4) + 2) = aes->OD1R; - *((volatile u32 *) output + (i * 4) + 3) = aes->OD0R; + *((volatile u32 *) temparea + 0) = aes->OD3R; + *((volatile u32 *) temparea + 1) = aes->OD2R; + *((volatile u32 *) temparea + 2) = aes->OD1R; + *((volatile u32 *) temparea + 3) = aes->OD0R; - memcpy(((u32 *) out_arg + (i * 4)), output, byte_cnt); + memcpy(((u32 *) out_arg + (i * 4)), temparea, byte_cnt); } //tc.chen : copy iv_arg back @@ -671,20 +670,15 @@ int ctr_basic_aes_encrypt(struct blkcipher_desc *desc, struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); struct blkcipher_walk walk; int err; - unsigned int enc_bytes; blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt(desc, &walk); - while ((nbytes = enc_bytes = walk.nbytes)) { - u8 *iv = walk.iv; - enc_bytes -= (nbytes % AES_BLOCK_SIZE); - ifx_deu_aes_ctr(ctx, walk.dst.virt.addr, walk.src.virt.addr, - iv, enc_bytes, CRYPTO_DIR_ENCRYPT, 0); - nbytes &= AES_BLOCK_SIZE - 1; - err = blkcipher_walk_done(desc, &walk, nbytes); + while ((nbytes = walk.nbytes)) { + ifx_deu_aes_ctr(ctx, walk.dst.virt.addr, walk.src.virt.addr, + walk.iv, nbytes, CRYPTO_DIR_ENCRYPT, 0); + err = blkcipher_walk_done(desc, &walk, 0); } - return err; } @@ -704,18 +698,14 @@ int ctr_basic_aes_decrypt(struct blkcipher_desc *desc, struct aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); struct blkcipher_walk walk; int err; - unsigned int dec_bytes; blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt(desc, &walk); - while ((nbytes = dec_bytes = walk.nbytes)) { - u8 *iv = walk.iv; - dec_bytes -= (nbytes % AES_BLOCK_SIZE); - ifx_deu_aes_ctr(ctx, walk.dst.virt.addr, walk.src.virt.addr, - iv, dec_bytes, CRYPTO_DIR_DECRYPT, 0); - nbytes &= AES_BLOCK_SIZE - 1; - err = blkcipher_walk_done(desc, &walk, nbytes); + while ((nbytes = walk.nbytes)) { + ifx_deu_aes_ctr(ctx, walk.dst.virt.addr, walk.src.virt.addr, + walk.iv, nbytes, CRYPTO_DIR_DECRYPT, 0); + err = blkcipher_walk_done(desc, &walk, 0); } return err; @@ -729,7 +719,7 @@ struct crypto_alg ifxdeu_ctr_basic_aes_alg = { .cra_driver_name = "ifxdeu-ctr(aes)", .cra_priority = 400, .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = AES_BLOCK_SIZE, + .cra_blocksize = 1, .cra_ctxsize = sizeof(struct aes_ctx), .cra_type = &crypto_blkcipher_type, .cra_module = THIS_MODULE, @@ -869,7 +859,7 @@ struct crypto_alg ifxdeu_ctr_rfc3686_aes_alg = { .cra_driver_name = "ifxdeu-ctr-rfc3686(aes)", .cra_priority = 400, .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = AES_BLOCK_SIZE, + .cra_blocksize = 1, .cra_ctxsize = sizeof(struct aes_ctx), .cra_type = &crypto_blkcipher_type, .cra_module = THIS_MODULE, |