1
2
3
4
5
6 #ifndef _CPTVF_ALGS_H_
7 #define _CPTVF_ALGS_H_
8
9 #include "request_manager.h"
10
11 #define MAX_DEVICES 16
12 #define MAJOR_OP_FC 0x33
13 #define MAX_ENC_KEY_SIZE 32
14 #define MAX_HASH_KEY_SIZE 64
15 #define MAX_KEY_SIZE (MAX_ENC_KEY_SIZE + MAX_HASH_KEY_SIZE)
16 #define CONTROL_WORD_LEN 8
17 #define KEY2_OFFSET 48
18
19 #define DMA_MODE_FLAG(dma_mode) \
20 (((dma_mode) == DMA_GATHER_SCATTER) ? (1 << 7) : 0)
21
22 enum req_type {
23 AE_CORE_REQ,
24 SE_CORE_REQ,
25 };
26
27 enum cipher_type {
28 DES3_CBC = 0x1,
29 DES3_ECB = 0x2,
30 AES_CBC = 0x3,
31 AES_ECB = 0x4,
32 AES_CFB = 0x5,
33 AES_CTR = 0x6,
34 AES_GCM = 0x7,
35 AES_XTS = 0x8
36 };
37
38 enum aes_type {
39 AES_128_BIT = 0x1,
40 AES_192_BIT = 0x2,
41 AES_256_BIT = 0x3
42 };
43
44 union encr_ctrl {
45 u64 flags;
46 struct {
47 #if defined(__BIG_ENDIAN_BITFIELD)
48 u64 enc_cipher:4;
49 u64 reserved1:1;
50 u64 aes_key:2;
51 u64 iv_source:1;
52 u64 hash_type:4;
53 u64 reserved2:3;
54 u64 auth_input_type:1;
55 u64 mac_len:8;
56 u64 reserved3:8;
57 u64 encr_offset:16;
58 u64 iv_offset:8;
59 u64 auth_offset:8;
60 #else
61 u64 auth_offset:8;
62 u64 iv_offset:8;
63 u64 encr_offset:16;
64 u64 reserved3:8;
65 u64 mac_len:8;
66 u64 auth_input_type:1;
67 u64 reserved2:3;
68 u64 hash_type:4;
69 u64 iv_source:1;
70 u64 aes_key:2;
71 u64 reserved1:1;
72 u64 enc_cipher:4;
73 #endif
74 } e;
75 };
76
77 struct cvm_cipher {
78 const char *name;
79 u8 value;
80 };
81
82 struct enc_context {
83 union encr_ctrl enc_ctrl;
84 u8 encr_key[32];
85 u8 encr_iv[16];
86 };
87
88 struct fchmac_context {
89 u8 ipad[64];
90 u8 opad[64];
91 };
92
93 struct fc_context {
94 struct enc_context enc;
95 struct fchmac_context hmac;
96 };
97
98 struct cvm_enc_ctx {
99 u32 key_len;
100 u8 enc_key[MAX_KEY_SIZE];
101 u8 cipher_type:4;
102 u8 key_type:2;
103 };
104
105 struct cvm_des3_ctx {
106 u32 key_len;
107 u8 des3_key[MAX_KEY_SIZE];
108 };
109
110 struct cvm_req_ctx {
111 struct cpt_request_info cpt_req;
112 u64 control_word;
113 struct fc_context fctx;
114 };
115
116 int cptvf_do_request(void *cptvf, struct cpt_request_info *req);
117 #endif