diff options
Diffstat (limited to 'include/soc/fsl')
| -rw-r--r-- | include/soc/fsl/caam-blob.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/soc/fsl/caam-blob.h b/include/soc/fsl/caam-blob.h index 937cac52f36d..922f7ec3e231 100644 --- a/include/soc/fsl/caam-blob.h +++ b/include/soc/fsl/caam-blob.h @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2020 Pengutronix, Ahmad Fatoum <kernel@pengutronix.de> + * Copyright 2024-2025 NXP */ #ifndef __CAAM_BLOB_GEN @@ -12,11 +13,34 @@ #define CAAM_BLOB_KEYMOD_LENGTH 16 #define CAAM_BLOB_OVERHEAD (32 + 16) #define CAAM_BLOB_MAX_LEN 4096 +#define CAAM_ENC_ALGO_CCM 0x1 +#define CAAM_ENC_ALGO_ECB 0x2 +#define CAAM_NONCE_SIZE 6 +#define CAAM_ICV_SIZE 6 +#define CAAM_CCM_OVERHEAD (CAAM_NONCE_SIZE + CAAM_ICV_SIZE) struct caam_blob_priv; /** + * struct caam_pkey_info - information for CAAM protected key + * @is_pkey: flag to identify, if the key is protected. + * @key_enc_algo: identifies the algorithm, ccm or ecb + * @plain_key_sz: size of plain key. + * @key_buf: contains key data + */ +struct caam_pkey_info { + u8 is_pkey; + u8 key_enc_algo; + u16 plain_key_sz; + u8 key_buf[]; +} __packed; + +/* sizeof struct caam_pkey_info */ +#define CAAM_PKEY_HEADER 4 + +/** * struct caam_blob_info - information for CAAM blobbing + * @pkey_info: pointer to keep protected key information * @input: pointer to input buffer (must be DMAable) * @input_len: length of @input buffer in bytes. * @output: pointer to output buffer (must be DMAable) @@ -26,6 +50,8 @@ struct caam_blob_priv; * May not exceed %CAAM_BLOB_KEYMOD_LENGTH */ struct caam_blob_info { + struct caam_pkey_info pkey_info; + void *input; size_t input_len; |