Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * CAAM/SEC 4.x definitions for handling key-generation jobs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright 2008-2011 Freescale Semiconductor, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * split_key_len - Compute MDHA split key length for a given algorithm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * @hash: Hashing algorithm selection, one of OP_ALG_ALGSEL_* - MD5, SHA1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  *        SHA224, SHA384, SHA512.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * Return: MDHA split key length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static inline u32 split_key_len(u32 hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	/* Sizes for MDHA pads (*not* keys): MD5, SHA1, 224, 256, 384, 512 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	static const u8 mdpadlen[] = { 16, 20, 32, 32, 64, 64 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	u32 idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	idx = (hash & OP_ALG_ALGSEL_SUBMASK) >> OP_ALG_ALGSEL_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	return (u32)(mdpadlen[idx] * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * split_key_pad_len - Compute MDHA split key pad length for a given algorithm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  * @hash: Hashing algorithm selection, one of OP_ALG_ALGSEL_* - MD5, SHA1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  *        SHA224, SHA384, SHA512.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)  * Return: MDHA split key pad length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static inline u32 split_key_pad_len(u32 hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	return ALIGN(split_key_len(hash), 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct split_key_result {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	struct completion completion;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) void split_key_done(struct device *dev, u32 *desc, u32 err, void *context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int gen_split_key(struct device *jrdev, u8 *key_out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		  struct alginfo * const adata, const u8 *key_in, u32 keylen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 		  int max_keylen);