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ecc722ad | 1 | /** @file\r |
2 | Internal file explorer functions for SecureBoot configuration module.\r | |
3 | \r | |
762d8ddb | 4 | Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR>\r |
ecc722ad | 5 | This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "SecureBootConfigImpl.h"\r | |
16 | \r | |
ecc722ad | 17 | VOID *mStartOpCodeHandle = NULL;\r |
18 | VOID *mEndOpCodeHandle = NULL;\r | |
19 | EFI_IFR_GUID_LABEL *mStartLabel = NULL;\r | |
20 | EFI_IFR_GUID_LABEL *mEndLabel = NULL;\r | |
21 | \r | |
22 | /**\r | |
762d8ddb | 23 | Refresh the global UpdateData structure.\r |
ecc722ad | 24 | \r |
25 | **/\r | |
762d8ddb DB |
26 | VOID\r |
27 | RefreshUpdateData (\r | |
28 | VOID\r | |
ecc722ad | 29 | )\r |
30 | {\r | |
ecc722ad | 31 | //\r |
762d8ddb | 32 | // Free current updated date\r |
ecc722ad | 33 | //\r |
762d8ddb DB |
34 | if (mStartOpCodeHandle != NULL) {\r |
35 | HiiFreeOpCodeHandle (mStartOpCodeHandle);\r | |
ecc722ad | 36 | }\r |
ecc722ad | 37 | \r |
ecc722ad | 38 | //\r |
762d8ddb | 39 | // Create new OpCode Handle\r |
ecc722ad | 40 | //\r |
762d8ddb | 41 | mStartOpCodeHandle = HiiAllocateOpCodeHandle ();\r |
ecc722ad | 42 | \r |
43 | //\r | |
762d8ddb | 44 | // Create Hii Extend Label OpCode as the start opcode\r |
ecc722ad | 45 | //\r |
762d8ddb DB |
46 | mStartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (\r |
47 | mStartOpCodeHandle,\r | |
48 | &gEfiIfrTianoGuid,\r | |
49 | NULL,\r | |
50 | sizeof (EFI_IFR_GUID_LABEL)\r | |
ecc722ad | 51 | );\r |
762d8ddb | 52 | mStartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r |
ecc722ad | 53 | }\r |
54 | \r | |
55 | /**\r | |
762d8ddb | 56 | Clean up the dynamic opcode at label and form specified by both LabelId.\r |
ecc722ad | 57 | \r |
762d8ddb DB |
58 | @param[in] LabelId It is both the Form ID and Label ID for opcode deletion.\r |
59 | @param[in] PrivateData Module private data.\r | |
20333c6d | 60 | \r |
ecc722ad | 61 | **/\r |
62 | VOID\r | |
762d8ddb DB |
63 | CleanUpPage (\r |
64 | IN UINT16 LabelId,\r | |
65 | IN SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData\r | |
ecc722ad | 66 | )\r |
67 | {\r | |
762d8ddb | 68 | RefreshUpdateData ();\r |
ecc722ad | 69 | \r |
70 | //\r | |
762d8ddb | 71 | // Remove all op-codes from dynamic page\r |
ecc722ad | 72 | //\r |
762d8ddb DB |
73 | mStartLabel->Number = LabelId;\r |
74 | HiiUpdateForm (\r | |
75 | PrivateData->HiiHandle,\r | |
76 | &gSecureBootConfigFormSetGuid,\r | |
77 | LabelId,\r | |
78 | mStartOpCodeHandle, // Label LabelId\r | |
79 | mEndOpCodeHandle // LABEL_END\r | |
80 | );\r | |
ecc722ad | 81 | }\r |
82 | \r | |
ecc722ad | 83 | /**\r |
762d8ddb | 84 | Extract filename from device path. The returned buffer is allocated using AllocateCopyPool.\r |
ed2992b3 DB |
85 | The caller is responsible for freeing the allocated buffer using FreePool(). If return NULL\r |
86 | means not enough memory resource.\r | |
ecc722ad | 87 | \r |
762d8ddb | 88 | @param DevicePath Device path.\r |
ecc722ad | 89 | \r |
ed2992b3 DB |
90 | @retval NULL Not enough memory resourece for AllocateCopyPool.\r |
91 | @retval Other A new allocated string that represents the file name.\r | |
ecc722ad | 92 | \r |
93 | **/\r | |
762d8ddb DB |
94 | CHAR16 *\r |
95 | ExtractFileNameFromDevicePath (\r | |
96 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
ecc722ad | 97 | )\r |
98 | {\r | |
762d8ddb DB |
99 | CHAR16 *String;\r |
100 | CHAR16 *MatchString;\r | |
101 | CHAR16 *LastMatch;\r | |
102 | CHAR16 *FileName;\r | |
103 | UINTN Length;\r | |
ecc722ad | 104 | \r |
762d8ddb | 105 | ASSERT(DevicePath != NULL);\r |
ecc722ad | 106 | \r |
762d8ddb DB |
107 | String = DevicePathToStr(DevicePath);\r |
108 | MatchString = String;\r | |
109 | LastMatch = String;\r | |
ed2992b3 | 110 | FileName = NULL;\r |
ecc722ad | 111 | \r |
762d8ddb DB |
112 | while(MatchString != NULL){\r |
113 | LastMatch = MatchString + 1;\r | |
114 | MatchString = StrStr(LastMatch,L"\\");\r | |
ecc722ad | 115 | }\r |
116 | \r | |
762d8ddb DB |
117 | Length = StrLen(LastMatch);\r |
118 | FileName = AllocateCopyPool ((Length + 1) * sizeof(CHAR16), LastMatch);\r | |
ed2992b3 DB |
119 | if (FileName != NULL) {\r |
120 | *(FileName + Length) = 0;\r | |
121 | }\r | |
ecc722ad | 122 | \r |
762d8ddb | 123 | FreePool(String);\r |
20333c6d | 124 | \r |
762d8ddb | 125 | return FileName;\r |
ecc722ad | 126 | }\r |
127 | \r | |
128 | \r | |
129 | /**\r | |
762d8ddb | 130 | Update the form base on the selected file.\r |
ecc722ad | 131 | \r |
762d8ddb DB |
132 | @param FilePath Point to the file path.\r |
133 | @param FormId The form need to display.\r | |
ecc722ad | 134 | \r |
762d8ddb DB |
135 | @retval TRUE Exit caller function.\r |
136 | @retval FALSE Not exit caller function.\r | |
ecc722ad | 137 | \r |
138 | **/\r | |
762d8ddb DB |
139 | BOOLEAN\r |
140 | UpdatePage(\r | |
141 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
142 | IN EFI_FORM_ID FormId\r | |
ecc722ad | 143 | )\r |
144 | {\r | |
762d8ddb DB |
145 | CHAR16 *FileName;\r |
146 | EFI_STRING_ID StringToken;\r | |
ecc722ad | 147 | \r |
ed2992b3 DB |
148 | FileName = NULL;\r |
149 | \r | |
150 | if (FilePath != NULL) {\r | |
762d8ddb | 151 | FileName = ExtractFileNameFromDevicePath(FilePath);\r |
ecc722ad | 152 | }\r |
ed2992b3 DB |
153 | if (FileName == NULL) {\r |
154 | //\r | |
155 | // FileName = NULL has two case:\r | |
156 | // 1. FilePath == NULL, not select file.\r | |
157 | // 2. FilePath != NULL, but ExtractFileNameFromDevicePath return NULL not enough memory resource.\r | |
158 | // In these two case, no need to update the form, and exit the caller function.\r | |
159 | //\r | |
160 | return TRUE;\r | |
161 | }\r | |
162 | StringToken = HiiSetString (gSecureBootPrivateData->HiiHandle, 0, FileName, NULL);\r | |
ecc722ad | 163 | \r |
762d8ddb | 164 | gSecureBootPrivateData->FileContext->FileName = FileName;\r |
20333c6d | 165 | \r |
1bf50074 | 166 | EfiOpenFileByDevicePath (\r |
762d8ddb DB |
167 | &FilePath,\r |
168 | &gSecureBootPrivateData->FileContext->FHandle,\r | |
169 | EFI_FILE_MODE_READ,\r | |
170 | 0\r | |
171 | );\r | |
ecc722ad | 172 | //\r |
762d8ddb | 173 | // Create Subtitle op-code for the display string of the option.\r |
ecc722ad | 174 | //\r |
762d8ddb DB |
175 | RefreshUpdateData ();\r |
176 | mStartLabel->Number = FormId;\r | |
ecc722ad | 177 | \r |
762d8ddb DB |
178 | HiiCreateSubTitleOpCode (\r |
179 | mStartOpCodeHandle,\r | |
180 | StringToken,\r | |
181 | 0,\r | |
182 | 0,\r | |
183 | 0\r | |
184 | );\r | |
185 | \r | |
186 | HiiUpdateForm (\r | |
187 | gSecureBootPrivateData->HiiHandle,\r | |
188 | &gSecureBootConfigFormSetGuid,\r | |
189 | FormId,\r | |
190 | mStartOpCodeHandle, // Label FormId\r | |
191 | mEndOpCodeHandle // LABEL_END\r | |
192 | );\r | |
193 | \r | |
194 | return TRUE;\r | |
ecc722ad | 195 | }\r |
196 | \r | |
197 | /**\r | |
762d8ddb | 198 | Update the PK form base on the input file path info.\r |
ecc722ad | 199 | \r |
762d8ddb DB |
200 | @param FilePath Point to the file path.\r |
201 | \r | |
202 | @retval TRUE Exit caller function.\r | |
203 | @retval FALSE Not exit caller function.\r | |
ecc722ad | 204 | **/\r |
762d8ddb | 205 | BOOLEAN\r |
bac308be | 206 | EFIAPI\r |
762d8ddb DB |
207 | UpdatePKFromFile (\r |
208 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath\r | |
ecc722ad | 209 | )\r |
210 | {\r | |
762d8ddb | 211 | return UpdatePage(FilePath, FORMID_ENROLL_PK_FORM);\r |
ecc722ad | 212 | \r |
ecc722ad | 213 | }\r |
214 | \r | |
215 | /**\r | |
762d8ddb | 216 | Update the KEK form base on the input file path info.\r |
ecc722ad | 217 | \r |
762d8ddb | 218 | @param FilePath Point to the file path.\r |
ecc722ad | 219 | \r |
762d8ddb DB |
220 | @retval TRUE Exit caller function.\r |
221 | @retval FALSE Not exit caller function.\r | |
ecc722ad | 222 | **/\r |
762d8ddb | 223 | BOOLEAN\r |
bac308be | 224 | EFIAPI\r |
762d8ddb DB |
225 | UpdateKEKFromFile (\r |
226 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath\r | |
ecc722ad | 227 | )\r |
228 | {\r | |
762d8ddb | 229 | return UpdatePage(FilePath, FORMID_ENROLL_KEK_FORM);\r |
ecc722ad | 230 | }\r |
231 | \r | |
232 | /**\r | |
762d8ddb | 233 | Update the DB form base on the input file path info.\r |
ecc722ad | 234 | \r |
762d8ddb | 235 | @param FilePath Point to the file path.\r |
ecc722ad | 236 | \r |
762d8ddb DB |
237 | @retval TRUE Exit caller function.\r |
238 | @retval FALSE Not exit caller function.\r | |
ecc722ad | 239 | **/\r |
240 | BOOLEAN\r | |
bac308be | 241 | EFIAPI\r |
762d8ddb DB |
242 | UpdateDBFromFile (\r |
243 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath\r | |
ecc722ad | 244 | )\r |
245 | {\r | |
762d8ddb DB |
246 | return UpdatePage(FilePath, SECUREBOOT_ENROLL_SIGNATURE_TO_DB);\r |
247 | }\r | |
ecc722ad | 248 | \r |
762d8ddb DB |
249 | /**\r |
250 | Update the DBX form base on the input file path info.\r | |
ecc722ad | 251 | \r |
762d8ddb | 252 | @param FilePath Point to the file path.\r |
ecc722ad | 253 | \r |
762d8ddb DB |
254 | @retval TRUE Exit caller function.\r |
255 | @retval FALSE Not exit caller function.\r | |
256 | **/\r | |
257 | BOOLEAN\r | |
bac308be | 258 | EFIAPI\r |
762d8ddb DB |
259 | UpdateDBXFromFile (\r |
260 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath\r | |
261 | )\r | |
262 | {\r | |
263 | return UpdatePage(FilePath, SECUREBOOT_ENROLL_SIGNATURE_TO_DBX);\r | |
ecc722ad | 264 | }\r |
265 | \r | |
266 | /**\r | |
762d8ddb | 267 | Update the DBT form base on the input file path info.\r |
ecc722ad | 268 | \r |
762d8ddb | 269 | @param FilePath Point to the file path.\r |
ecc722ad | 270 | \r |
762d8ddb DB |
271 | @retval TRUE Exit caller function.\r |
272 | @retval FALSE Not exit caller function.\r | |
ecc722ad | 273 | **/\r |
762d8ddb | 274 | BOOLEAN\r |
bac308be | 275 | EFIAPI\r |
762d8ddb DB |
276 | UpdateDBTFromFile (\r |
277 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath\r | |
ecc722ad | 278 | )\r |
279 | {\r | |
762d8ddb | 280 | return UpdatePage(FilePath, SECUREBOOT_ENROLL_SIGNATURE_TO_DBT);\r |
ecc722ad | 281 | }\r |
762d8ddb | 282 | \r |