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1 | /** @file\r |
2 | EFI_HASH2_SERVICE_BINDING_PROTOCOL as defined in UEFI 2.5.\r | |
3 | EFI_HASH2_PROTOCOL as defined in UEFI 2.5.\r | |
4 | The EFI Hash2 Service Binding Protocol is used to locate hashing services support\r | |
5 | provided by a driver and to create and destroy instances of the EFI Hash2 Protocol\r | |
6 | so that a multiple drivers can use the underlying hashing services.\r | |
7 | EFI_HASH2_PROTOCOL describes hashing functions for which the algorithm-required\r | |
8 | message padding and finalization are performed by the supporting driver.\r | |
9 | \r | |
10 | Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r | |
11 | This program and the accompanying materials are licensed and made available under\r | |
12 | the terms and conditions of the BSD License that accompanies this distribution.\r | |
13 | The full text of the license may be found at\r | |
14 | http://opensource.org/licenses/bsd-license.php.\r | |
15 | \r | |
16 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
17 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
18 | \r | |
19 | **/\r | |
20 | \r | |
21 | #ifndef __EFI_HASH2_PROTOCOL_H__\r | |
22 | #define __EFI_HASH2_PROTOCOL_H__\r | |
23 | \r | |
24 | #define EFI_HASH2_SERVICE_BINDING_PROTOCOL_GUID \\r | |
25 | { \\r | |
26 | 0xda836f8d, 0x217f, 0x4ca0, { 0x99, 0xc2, 0x1c, 0xa4, 0xe1, 0x60, 0x77, 0xea } \\r | |
27 | }\r | |
28 | \r | |
29 | #define EFI_HASH2_PROTOCOL_GUID \\r | |
30 | { \\r | |
31 | 0x55b1d734, 0xc5e1, 0x49db, { 0x96, 0x47, 0xb1, 0x6a, 0xfb, 0xe, 0x30, 0x5b } \\r | |
32 | }\r | |
33 | \r | |
34 | #include <Protocol/Hash.h>\r | |
35 | \r | |
36 | //\r | |
37 | // NOTE:\r | |
38 | // Algorithms EFI_HASH_ALGORITHM_SHA1_NOPAD and\r | |
39 | // EFI_HASH_ALGORITHM_SHA256_NOPAD_GUID are not compatible with\r | |
40 | // EFI_HASH2_PROTOCOL and will return EFI_UNSUPPORTED if used with any\r | |
41 | // EFI_HASH2_PROTOCOL function.\r | |
42 | //\r | |
43 | \r | |
44 | //\r | |
45 | // Note: SHA-1 and MD5 are included for backwards compatibility.\r | |
46 | // New driver implementations are encouraged to consider stronger algorithms.\r | |
47 | //\r | |
48 | \r | |
49 | typedef struct _EFI_HASH2_PROTOCOL EFI_HASH2_PROTOCOL;\r | |
50 | \r | |
51 | typedef UINT8 EFI_MD5_HASH2[16];\r | |
52 | typedef UINT8 EFI_SHA1_HASH2[20];\r | |
53 | typedef UINT8 EFI_SHA224_HASH2[28];\r | |
54 | typedef UINT8 EFI_SHA256_HASH2[32];\r | |
55 | typedef UINT8 EFI_SHA384_HASH2[48];\r | |
56 | typedef UINT8 EFI_SHA512_HASH2[64];\r | |
57 | \r | |
58 | typedef union {\r | |
59 | EFI_MD5_HASH2 Md5Hash;\r | |
60 | EFI_SHA1_HASH2 Sha1Hash;\r | |
61 | EFI_SHA224_HASH2 Sha224Hash;\r | |
62 | EFI_SHA256_HASH2 Sha256Hash;\r | |
63 | EFI_SHA384_HASH2 Sha384Hash;\r | |
64 | EFI_SHA512_HASH2 Sha512Hash;\r | |
65 | } EFI_HASH2_OUTPUT;\r | |
66 | \r | |
67 | /**\r | |
68 | Returns the size of the hash which results from a specific algorithm.\r | |
69 | \r | |
70 | @param[in] This Points to this instance of EFI_HASH2_PROTOCOL.\r | |
71 | @param[in] HashAlgorithm Points to the EFI_GUID which identifies the algorithm to use.\r | |
72 | @param[out] HashSize Holds the returned size of the algorithm's hash.\r | |
73 | \r | |
74 | @retval EFI_SUCCESS Hash size returned successfully.\r | |
75 | @retval EFI_INVALID_PARAMETER This or HashSize is NULL.\r | |
76 | @retval EFI_UNSUPPORTED The algorithm specified by HashAlgorithm is not supported by this driver\r | |
77 | or HashAlgorithm is null.\r | |
78 | \r | |
79 | **/\r | |
80 | typedef\r | |
81 | EFI_STATUS\r | |
82 | (EFIAPI *EFI_HASH2_GET_HASH_SIZE)(\r | |
83 | IN CONST EFI_HASH2_PROTOCOL *This,\r | |
84 | IN CONST EFI_GUID *HashAlgorithm,\r | |
85 | OUT UINTN *HashSize\r | |
86 | );\r | |
87 | \r | |
88 | /**\r | |
89 | Creates a hash for the specified message text. The hash is not extendable.\r | |
90 | The output is final with any algorithm-required padding added by the function.\r | |
91 | \r | |
92 | @param[in] This Points to this instance of EFI_HASH2_PROTOCOL.\r | |
93 | @param[in] HashAlgorithm Points to the EFI_GUID which identifies the algorithm to use.\r | |
94 | @param[in] Message Points to the start of the message.\r | |
95 | @param[in] MessageSize The size of Message, in bytes.\r | |
96 | @param[in,out] Hash On input, points to a caller-allocated buffer of the size\r | |
97 | returned by GetHashSize() for the specified HashAlgorithm.\r | |
98 | On output, the buffer holds the resulting hash computed from the message.\r | |
99 | \r | |
100 | @retval EFI_SUCCESS Hash returned successfully.\r | |
101 | @retval EFI_INVALID_PARAMETER This or Hash is NULL.\r | |
102 | @retval EFI_UNSUPPORTED The algorithm specified by HashAlgorithm is not supported by this driver\r | |
103 | or HashAlgorithm is Null.\r | |
104 | @retval EFI_OUT_OF_RESOURCES Some resource required by the function is not available\r | |
105 | or MessageSize is greater than platform maximum.\r | |
106 | \r | |
107 | **/\r | |
108 | typedef\r | |
109 | EFI_STATUS\r | |
110 | (EFIAPI *EFI_HASH2_HASH)(\r | |
111 | IN CONST EFI_HASH2_PROTOCOL *This,\r | |
112 | IN CONST EFI_GUID *HashAlgorithm,\r | |
113 | IN CONST UINT8 *Message,\r | |
114 | IN UINTN MessageSize,\r | |
115 | IN OUT EFI_HASH2_OUTPUT *Hash\r | |
116 | );\r | |
117 | \r | |
118 | /**\r | |
119 | This function must be called to initialize a digest calculation to be subsequently performed using the\r | |
120 | EFI_HASH2_PROTOCOL functions HashUpdate() and HashFinal().\r | |
121 | \r | |
122 | @param[in] This Points to this instance of EFI_HASH2_PROTOCOL.\r | |
123 | @param[in] HashAlgorithm Points to the EFI_GUID which identifies the algorithm to use.\r | |
124 | \r | |
125 | @retval EFI_SUCCESS Initialized successfully.\r | |
126 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
127 | @retval EFI_UNSUPPORTED The algorithm specified by HashAlgorithm is not supported by this driver\r | |
128 | or HashAlgorithm is Null.\r | |
129 | @retval EFI_OUT_OF_RESOURCES Process failed due to lack of required resource.\r | |
130 | @retval EFI_ALREADY_STARTED This function is called when the operation in progress is still in processing Hash(),\r | |
131 | or HashInit() is already called before and not terminated by HashFinal() yet on the same instance.\r | |
132 | \r | |
133 | **/\r | |
134 | typedef\r | |
135 | EFI_STATUS\r | |
136 | (EFIAPI *EFI_HASH2_HASH_INIT)(\r | |
137 | IN CONST EFI_HASH2_PROTOCOL *This,\r | |
138 | IN CONST EFI_GUID *HashAlgorithm\r | |
139 | );\r | |
140 | \r | |
141 | /**\r | |
142 | Updates the hash of a computation in progress by adding a message text.\r | |
143 | \r | |
144 | @param[in] This Points to this instance of EFI_HASH2_PROTOCOL.\r | |
145 | @param[in] Message Points to the start of the message.\r | |
146 | @param[in] MessageSize The size of Message, in bytes.\r | |
147 | \r | |
148 | @retval EFI_SUCCESS Digest in progress updated successfully.\r | |
149 | @retval EFI_INVALID_PARAMETER This or Hash is NULL.\r | |
150 | @retval EFI_OUT_OF_RESOURCES Some resource required by the function is not available\r | |
151 | or MessageSize is greater than platform maximum.\r | |
152 | @retval EFI_NOT_READY This call was not preceded by a valid call to HashInit(),\r | |
153 | or the operation in progress was terminated by a call to Hash() or HashFinal() on the same instance.\r | |
154 | \r | |
155 | **/\r | |
156 | typedef\r | |
157 | EFI_STATUS\r | |
158 | (EFIAPI *EFI_HASH2_HASH_UPDATE)(\r | |
159 | IN CONST EFI_HASH2_PROTOCOL *This,\r | |
160 | IN CONST UINT8 *Message,\r | |
161 | IN UINTN MessageSize\r | |
162 | );\r | |
163 | \r | |
164 | /**\r | |
165 | Finalizes a hash operation in progress and returns calculation result.\r | |
166 | The output is final with any necessary padding added by the function.\r | |
167 | The hash may not be further updated or extended after HashFinal().\r | |
168 | \r | |
169 | @param[in] This Points to this instance of EFI_HASH2_PROTOCOL.\r | |
170 | @param[in,out] Hash On input, points to a caller-allocated buffer of the size\r | |
171 | returned by GetHashSize() for the specified HashAlgorithm specified in preceding HashInit().\r | |
172 | On output, the buffer holds the resulting hash computed from the message.\r | |
173 | \r | |
174 | @retval EFI_SUCCESS Hash returned successfully.\r | |
175 | @retval EFI_INVALID_PARAMETER This or Hash is NULL.\r | |
176 | @retval EFI_NOT_READY This call was not preceded by a valid call to HashInit() and at least one call to HashUpdate(),\r | |
177 | or the operation in progress was canceled by a call to Hash() on the same instance.\r | |
178 | \r | |
179 | **/\r | |
180 | typedef\r | |
181 | EFI_STATUS\r | |
182 | (EFIAPI *EFI_HASH2_HASH_FINAL)(\r | |
183 | IN CONST EFI_HASH2_PROTOCOL *This,\r | |
184 | IN OUT EFI_HASH2_OUTPUT *Hash\r | |
185 | );\r | |
186 | \r | |
187 | ///\r | |
188 | /// This protocol describes hashing functions for which the algorithm-required message padding and\r | |
189 | /// finalization are performed by the supporting driver.\r | |
190 | ///\r | |
191 | struct _EFI_HASH2_PROTOCOL {\r | |
192 | EFI_HASH2_GET_HASH_SIZE GetHashSize;\r | |
193 | EFI_HASH2_HASH Hash;\r | |
194 | EFI_HASH2_HASH_INIT HashInit;\r | |
195 | EFI_HASH2_HASH_UPDATE HashUpdate;\r | |
196 | EFI_HASH2_HASH_FINAL HashFinal;\r | |
197 | };\r | |
198 | \r | |
199 | extern EFI_GUID gEfiHash2ServiceBindingProtocolGuid;\r | |
200 | extern EFI_GUID gEfiHash2ProtocolGuid;\r | |
201 | \r | |
202 | #endif\r |