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1 /*
2  * Copyright 2017-2022 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the Apache License 2.0 (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  */
9 
10 #ifndef OSSL_CRYPTO_S390X_ARCH_H
11 # define OSSL_CRYPTO_S390X_ARCH_H
12 
13 # ifndef __ASSEMBLER__
14 
15 void s390x_kimd(const unsigned char *in, size_t len, unsigned int fc,
16                 void *param);
17 void s390x_klmd(const unsigned char *in, size_t inlen, unsigned char *out,
18                 size_t outlen, unsigned int fc, void *param);
19 void s390x_km(const unsigned char *in, size_t len, unsigned char *out,
20               unsigned int fc, void *param);
21 void s390x_kmac(const unsigned char *in, size_t len, unsigned int fc,
22                 void *param);
23 void s390x_kmo(const unsigned char *in, size_t len, unsigned char *out,
24                unsigned int fc, void *param);
25 void s390x_kmf(const unsigned char *in, size_t len, unsigned char *out,
26                unsigned int fc, void *param);
27 void s390x_kma(const unsigned char *aad, size_t alen, const unsigned char *in,
28                size_t len, unsigned char *out, unsigned int fc, void *param);
29 int s390x_pcc(unsigned int fc, void *param);
30 int s390x_kdsa(unsigned int fc, void *param, const unsigned char *in,
31                size_t len);
32 
33 void s390x_flip_endian32(unsigned char dst[32], const unsigned char src[32]);
34 void s390x_flip_endian64(unsigned char dst[64], const unsigned char src[64]);
35 
36 int s390x_x25519_mul(unsigned char u_dst[32],
37                      const unsigned char u_src[32],
38                      const unsigned char d_src[32]);
39 int s390x_x448_mul(unsigned char u_dst[56],
40                    const unsigned char u_src[56],
41                    const unsigned char d_src[56]);
42 int s390x_ed25519_mul(unsigned char x_dst[32],
43                       unsigned char y_dst[32],
44                       const unsigned char x_src[32],
45                       const unsigned char y_src[32],
46                       const unsigned char d_src[32]);
47 int s390x_ed448_mul(unsigned char x_dst[57],
48                     unsigned char y_dst[57],
49                     const unsigned char x_src[57],
50                     const unsigned char y_src[57],
51                     const unsigned char d_src[57]);
52 
53 /*
54  * The field elements of OPENSSL_s390xcap_P are the 64-bit words returned by
55  * the STFLE instruction followed by the 64-bit word pairs returned by
56  * instructions' QUERY functions. If STFLE returns fewer data or an instruction
57  * is not supported, the corresponding field elements are zero.
58  */
59 struct OPENSSL_s390xcap_st {
60     unsigned long long stfle[4];
61     unsigned long long kimd[2];
62     unsigned long long klmd[2];
63     unsigned long long km[2];
64     unsigned long long kmc[2];
65     unsigned long long kmac[2];
66     unsigned long long kmctr[2];
67     unsigned long long kmo[2];
68     unsigned long long kmf[2];
69     unsigned long long prno[2];
70     unsigned long long kma[2];
71     unsigned long long pcc[2];
72     unsigned long long kdsa[2];
73 };
74 
75 #if defined(__GNUC__) && defined(__linux)
76 __attribute__ ((visibility("hidden")))
77 #endif
78 extern struct OPENSSL_s390xcap_st OPENSSL_s390xcap_P;
79 
80 /* Max number of 64-bit words currently returned by STFLE */
81 #  define S390X_STFLE_MAX       3
82 
83 /* convert facility bit number or function code to bit mask */
84 #  define S390X_CAPBIT(i)       (1ULL << (63 - (i) % 64))
85 
86 # endif
87 
88 /* OPENSSL_s390xcap_P offsets [bytes] */
89 # define S390X_STFLE            0x00
90 # define S390X_KIMD             0x20
91 # define S390X_KLMD             0x30
92 # define S390X_KM               0x40
93 # define S390X_KMC              0x50
94 # define S390X_KMAC             0x60
95 # define S390X_KMCTR            0x70
96 # define S390X_KMO              0x80
97 # define S390X_KMF              0x90
98 # define S390X_PRNO             0xa0
99 # define S390X_KMA              0xb0
100 # define S390X_PCC              0xc0
101 # define S390X_KDSA             0xd0
102 
103 /* Facility Bit Numbers */
104 # define S390X_MSA              17      /* message-security-assist */
105 # define S390X_STCKF            25      /* store-clock-fast */
106 # define S390X_MSA5             57      /* message-security-assist-ext. 5 */
107 # define S390X_MSA3             76      /* message-security-assist-ext. 3 */
108 # define S390X_MSA4             77      /* message-security-assist-ext. 4 */
109 # define S390X_VX               129     /* vector */
110 # define S390X_VXD              134     /* vector packed decimal */
111 # define S390X_VXE              135     /* vector enhancements 1 */
112 # define S390X_MSA8             146     /* message-security-assist-ext. 8 */
113 # define S390X_MSA9             155     /* message-security-assist-ext. 9 */
114 
115 /* Function Codes */
116 
117 /* all instructions */
118 # define S390X_QUERY            0
119 
120 /* kimd/klmd */
121 # define S390X_SHA_1            1
122 # define S390X_SHA_256          2
123 # define S390X_SHA_512          3
124 # define S390X_SHA3_224         32
125 # define S390X_SHA3_256         33
126 # define S390X_SHA3_384         34
127 # define S390X_SHA3_512         35
128 # define S390X_SHAKE_128        36
129 # define S390X_SHAKE_256        37
130 # define S390X_GHASH            65
131 
132 /* km/kmc/kmac/kmctr/kmo/kmf/kma */
133 # define S390X_AES_128          18
134 # define S390X_AES_192          19
135 # define S390X_AES_256          20
136 
137 /* km */
138 # define S390X_XTS_AES_128      50
139 # define S390X_XTS_AES_256      52
140 
141 /* prno */
142 # define S390X_SHA_512_DRNG     3
143 # define S390X_TRNG             114
144 
145 /* pcc */
146 # define S390X_SCALAR_MULTIPLY_P256     64
147 # define S390X_SCALAR_MULTIPLY_P384     65
148 # define S390X_SCALAR_MULTIPLY_P521     66
149 # define S390X_SCALAR_MULTIPLY_ED25519  72
150 # define S390X_SCALAR_MULTIPLY_ED448    73
151 # define S390X_SCALAR_MULTIPLY_X25519   80
152 # define S390X_SCALAR_MULTIPLY_X448     81
153 
154 /* kdsa */
155 # define S390X_ECDSA_VERIFY_P256        1
156 # define S390X_ECDSA_VERIFY_P384        2
157 # define S390X_ECDSA_VERIFY_P521        3
158 # define S390X_ECDSA_SIGN_P256          9
159 # define S390X_ECDSA_SIGN_P384          10
160 # define S390X_ECDSA_SIGN_P521          11
161 # define S390X_EDDSA_VERIFY_ED25519     32
162 # define S390X_EDDSA_VERIFY_ED448       36
163 # define S390X_EDDSA_SIGN_ED25519       40
164 # define S390X_EDDSA_SIGN_ED448         44
165 
166 /* Register 0 Flags */
167 # define S390X_DECRYPT          0x80
168 # define S390X_KMA_LPC          0x100
169 # define S390X_KMA_LAAD         0x200
170 # define S390X_KMA_HS           0x400
171 # define S390X_KDSA_D           0x80
172 
173 #endif
174