1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef ASM_X86_CAMELLIA_H
3 #define ASM_X86_CAMELLIA_H
4
5 #include <crypto/b128ops.h>
6 #include <linux/crypto.h>
7 #include <linux/kernel.h>
8
9 #define CAMELLIA_MIN_KEY_SIZE 16
10 #define CAMELLIA_MAX_KEY_SIZE 32
11 #define CAMELLIA_BLOCK_SIZE 16
12 #define CAMELLIA_TABLE_BYTE_LEN 272
13 #define CAMELLIA_PARALLEL_BLOCKS 2
14
15 struct crypto_skcipher;
16
17 struct camellia_ctx {
18 u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
19 u32 key_length;
20 };
21
22 struct camellia_xts_ctx {
23 struct camellia_ctx tweak_ctx;
24 struct camellia_ctx crypt_ctx;
25 };
26
27 extern int __camellia_setkey(struct camellia_ctx *cctx,
28 const unsigned char *key,
29 unsigned int key_len);
30
31 extern int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
32 unsigned int keylen);
33
34 /* regular block cipher functions */
35 asmlinkage void __camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src,
36 bool xor);
37 asmlinkage void camellia_dec_blk(const void *ctx, u8 *dst, const u8 *src);
38
39 /* 2-way parallel cipher functions */
40 asmlinkage void __camellia_enc_blk_2way(const void *ctx, u8 *dst, const u8 *src,
41 bool xor);
42 asmlinkage void camellia_dec_blk_2way(const void *ctx, u8 *dst, const u8 *src);
43
44 /* 16-way parallel cipher functions (avx/aes-ni) */
45 asmlinkage void camellia_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
46 asmlinkage void camellia_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
47
48 asmlinkage void camellia_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
49 asmlinkage void camellia_ctr_16way(const void *ctx, u8 *dst, const u8 *src,
50 le128 *iv);
51
52 asmlinkage void camellia_xts_enc_16way(const void *ctx, u8 *dst, const u8 *src,
53 le128 *iv);
54 asmlinkage void camellia_xts_dec_16way(const void *ctx, u8 *dst, const u8 *src,
55 le128 *iv);
56
camellia_enc_blk(const void * ctx,u8 * dst,const u8 * src)57 static inline void camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src)
58 {
59 __camellia_enc_blk(ctx, dst, src, false);
60 }
61
camellia_enc_blk_xor(const void * ctx,u8 * dst,const u8 * src)62 static inline void camellia_enc_blk_xor(const void *ctx, u8 *dst, const u8 *src)
63 {
64 __camellia_enc_blk(ctx, dst, src, true);
65 }
66
camellia_enc_blk_2way(const void * ctx,u8 * dst,const u8 * src)67 static inline void camellia_enc_blk_2way(const void *ctx, u8 *dst,
68 const u8 *src)
69 {
70 __camellia_enc_blk_2way(ctx, dst, src, false);
71 }
72
camellia_enc_blk_xor_2way(const void * ctx,u8 * dst,const u8 * src)73 static inline void camellia_enc_blk_xor_2way(const void *ctx, u8 *dst,
74 const u8 *src)
75 {
76 __camellia_enc_blk_2way(ctx, dst, src, true);
77 }
78
79 /* glue helpers */
80 extern void camellia_decrypt_cbc_2way(const void *ctx, u8 *dst, const u8 *src);
81 extern void camellia_crypt_ctr(const void *ctx, u8 *dst, const u8 *src,
82 le128 *iv);
83 extern void camellia_crypt_ctr_2way(const void *ctx, u8 *dst, const u8 *src,
84 le128 *iv);
85
86 extern void camellia_xts_enc(const void *ctx, u8 *dst, const u8 *src,
87 le128 *iv);
88 extern void camellia_xts_dec(const void *ctx, u8 *dst, const u8 *src,
89 le128 *iv);
90
91 #endif /* ASM_X86_CAMELLIA_H */
92