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a405b86d | 1 | /** @file\r |
2 | Member functions of EFI_SHELL_PARAMETERS_PROTOCOL and functions for creation,\r | |
3 | manipulation, and initialization of EFI_SHELL_PARAMETERS_PROTOCOL.\r | |
4 | \r | |
5 | Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #ifndef _SHELL_PARAMETERS_PROTOCOL_PROVIDER_HEADER_\r | |
17 | #define _SHELL_PARAMETERS_PROTOCOL_PROVIDER_HEADER_\r | |
18 | \r | |
19 | #include <Uefi.h>\r | |
20 | \r | |
21 | #include <Protocol/SimpleFileSystem.h>\r | |
22 | #include <Protocol/EfiShellParameters.h>\r | |
23 | #include <Protocol/LoadedImage.h>\r | |
8be0ba36 | 24 | #include <Protocol/SimpleTextOut.h>\r |
25 | #include <Protocol/SimpleTextIn.h>\r | |
a405b86d | 26 | \r |
27 | #include <Guid/ShellVariableGuid.h>\r | |
28 | \r | |
29 | #include <Library/UefiBootServicesTableLib.h>\r | |
30 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
31 | #include <Library/MemoryAllocationLib.h>\r | |
32 | #include <Library/UefiLib.h>\r | |
33 | #include <Library/DebugLib.h>\r | |
34 | #include <Library/ShellLib.h>\r | |
35 | #include <Library/FileHandleLib.h>\r | |
36 | \r | |
37 | #include "ShellEnvVar.h"\r | |
38 | #include "FileHandleWrappers.h"\r | |
39 | #include "Shell.h"\r | |
40 | \r | |
41 | /**\r | |
42 | creates a new EFI_SHELL_PARAMETERS_PROTOCOL instance and populates it and then\r | |
43 | installs it on our handle and if there is an existing version of the protocol\r | |
44 | that one is cached for removal later.\r | |
45 | \r | |
46 | @param[in,out] NewShellParameters on a successful return, a pointer to pointer\r | |
47 | to the newly installed interface.\r | |
48 | @param[in,out] RootShellInstance on a successful return, pointer to boolean.\r | |
49 | TRUE if this is the root shell instance.\r | |
50 | \r | |
51 | @retval EFI_SUCCESS the operation completed successfully.\r | |
52 | @return other the operation failed.\r | |
53 | @sa ReinstallProtocolInterface\r | |
54 | @sa InstallProtocolInterface\r | |
55 | @sa ParseCommandLineToArgs\r | |
56 | **/\r | |
57 | EFI_STATUS\r | |
58 | EFIAPI\r | |
59 | CreatePopulateInstallShellParametersProtocol (\r | |
60 | IN OUT EFI_SHELL_PARAMETERS_PROTOCOL **NewShellParameters,\r | |
61 | IN OUT BOOLEAN *RootShellInstance\r | |
62 | );\r | |
63 | \r | |
64 | /**\r | |
65 | frees all memory used by createion and installation of shell parameters protocol\r | |
66 | and if there was an old version installed it will restore that one.\r | |
67 | \r | |
68 | @param NewShellParameters the interface of EFI_SHELL_PARAMETERS_PROTOCOL that is\r | |
69 | being cleaned up.\r | |
70 | \r | |
71 | @retval EFI_SUCCESS the cleanup was successful\r | |
72 | @return other the cleanup failed\r | |
73 | @sa ReinstallProtocolInterface\r | |
74 | @sa UninstallProtocolInterface\r | |
75 | **/\r | |
76 | EFI_STATUS\r | |
77 | EFIAPI\r | |
78 | CleanUpShellParametersProtocol (\r | |
79 | IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *NewShellParameters\r | |
80 | );\r | |
81 | \r | |
82 | /**\r | |
83 | Funcion will replace the current Argc and Argv in the ShellParameters protocol\r | |
84 | structure by parsing NewCommandLine. The current values are returned to the\r | |
85 | user.\r | |
86 | \r | |
87 | @param[in,out] ShellParameters pointer to parameter structure to modify\r | |
88 | @param[in] NewCommandLine the new command line to parse and use\r | |
89 | @param[out] OldArgv pointer to old list of parameters\r | |
90 | @param[out] OldArgc pointer to old number of items in Argv list\r | |
91 | \r | |
92 | @retval EFI_SUCCESS operation was sucessful, Argv and Argc are valid\r | |
93 | @retval EFI_OUT_OF_RESOURCES a memory allocation failed.\r | |
94 | **/\r | |
95 | EFI_STATUS\r | |
96 | EFIAPI\r | |
97 | UpdateArgcArgv(\r | |
98 | IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters,\r | |
99 | IN CONST CHAR16 *NewCommandLine,\r | |
100 | OUT CHAR16 ***OldArgv,\r | |
101 | OUT UINTN *OldArgc\r | |
102 | );\r | |
103 | \r | |
104 | /**\r | |
105 | Funcion will replace the current Argc and Argv in the ShellParameters protocol\r | |
106 | structure with Argv and Argc. The current values are de-allocated and the\r | |
107 | OldArgv must not be deallocated by the caller.\r | |
108 | \r | |
109 | @param[in,out] ShellParameters pointer to parameter structure to modify\r | |
110 | @param[in] OldArgv pointer to old list of parameters\r | |
111 | @param[in] OldArgc pointer to old number of items in Argv list\r | |
112 | **/\r | |
113 | VOID\r | |
114 | EFIAPI\r | |
115 | RestoreArgcArgv(\r | |
116 | IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters,\r | |
117 | IN CHAR16 ***OldArgv,\r | |
118 | IN UINTN *OldArgc\r | |
119 | );\r | |
120 | \r | |
8be0ba36 | 121 | typedef struct {\r |
122 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL *ConIn;\r | |
123 | EFI_HANDLE ConInHandle;\r | |
124 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ConOut;\r | |
125 | EFI_HANDLE ConOutHandle;\r | |
126 | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ConErr;\r | |
127 | EFI_HANDLE ConErrHandle;\r | |
128 | } SYSTEM_TABLE_INFO;\r | |
129 | \r | |
a405b86d | 130 | /**\r |
131 | Funcion will replace the current StdIn and StdOut in the ShellParameters protocol\r | |
132 | structure by parsing NewCommandLine. The current values are returned to the\r | |
133 | user.\r | |
134 | \r | |
fb84495a | 135 | This will also update the system table.\r |
a405b86d | 136 | \r |
137 | @param[in,out] ShellParameters Pointer to parameter structure to modify.\r | |
138 | @param[in] NewCommandLine The new command line to parse and use.\r | |
139 | @param[out] OldStdIn Pointer to old StdIn.\r | |
140 | @param[out] OldStdOut Pointer to old StdOut.\r | |
141 | @param[out] OldStdErr Pointer to old StdErr.\r | |
8be0ba36 | 142 | @param[out] SystemTableInfo Pointer to old system table information.\r |
a405b86d | 143 | \r |
144 | @retval EFI_SUCCESS Operation was sucessful, Argv and Argc are valid.\r | |
145 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r | |
146 | **/\r | |
147 | EFI_STATUS\r | |
148 | EFIAPI\r | |
149 | UpdateStdInStdOutStdErr(\r | |
150 | IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters,\r | |
fb84495a | 151 | IN CHAR16 *NewCommandLine,\r |
8be0ba36 | 152 | OUT SHELL_FILE_HANDLE *OldStdIn,\r |
153 | OUT SHELL_FILE_HANDLE *OldStdOut,\r | |
154 | OUT SHELL_FILE_HANDLE *OldStdErr,\r | |
155 | OUT SYSTEM_TABLE_INFO *SystemTableInfo\r | |
a405b86d | 156 | );\r |
157 | \r | |
158 | /**\r | |
159 | Funcion will replace the current StdIn and StdOut in the ShellParameters protocol\r | |
160 | structure with StdIn and StdOut. The current values are de-allocated.\r | |
161 | \r | |
8be0ba36 | 162 | @param[in,out] ShellParameters Pointer to parameter structure to modify.\r |
163 | @param[in] OldStdIn Pointer to old StdIn.\r | |
164 | @param[in] OldStdOut Pointer to old StdOut.\r | |
165 | @param[in] OldStdErr Pointer to old StdErr.\r | |
166 | @param[in] SystemTableInfo Pointer to old system table information.\r | |
a405b86d | 167 | **/\r |
168 | EFI_STATUS\r | |
169 | EFIAPI\r | |
170 | RestoreStdInStdOutStdErr (\r | |
171 | IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters,\r | |
8be0ba36 | 172 | IN SHELL_FILE_HANDLE *OldStdIn,\r |
173 | IN SHELL_FILE_HANDLE *OldStdOut,\r | |
174 | IN SHELL_FILE_HANDLE *OldStdErr,\r | |
175 | IN SYSTEM_TABLE_INFO *SystemTableInfo\r | |
a405b86d | 176 | );\r |
177 | \r | |
178 | /**\r | |
179 | function to populate Argc and Argv.\r | |
180 | \r | |
181 | This function parses the CommandLine and divides it into standard C style Argc/Argv\r | |
182 | parameters for inclusion in EFI_SHELL_PARAMETERS_PROTOCOL. this supports space\r | |
183 | delimited and quote surrounded parameter definition.\r | |
184 | \r | |
185 | @param[in] CommandLine String of command line to parse\r | |
186 | @param[in,out] Argv pointer to array of strings; one for each parameter\r | |
187 | @param[in,out] Argc pointer to number of strings in Argv array\r | |
188 | \r | |
189 | @return EFI_SUCCESS the operation was sucessful\r | |
190 | @return EFI_OUT_OF_RESOURCES a memory allocation failed.\r | |
191 | **/\r | |
192 | EFI_STATUS\r | |
193 | EFIAPI\r | |
194 | ParseCommandLineToArgs(\r | |
195 | IN CONST CHAR16 *CommandLine,\r | |
196 | IN OUT CHAR16 ***Argv,\r | |
197 | IN OUT UINTN *Argc\r | |
198 | );\r | |
199 | \r | |
200 | /**\r | |
201 | return the next parameter from a command line string;\r | |
202 | \r | |
203 | This function moves the next parameter from Walker into TempParameter and moves\r | |
204 | Walker up past that parameter for recursive calling. When the final parameter\r | |
205 | is moved *Walker will be set to NULL;\r | |
206 | \r | |
207 | Temp Parameter must be large enough to hold the parameter before calling this\r | |
208 | function.\r | |
209 | \r | |
210 | @param[in,out] Walker pointer to string of command line. Adjusted to\r | |
211 | reminaing command line on return\r | |
212 | @param[in,out] TempParameter pointer to string of command line item extracted.\r | |
213 | \r | |
214 | **/\r | |
215 | VOID\r | |
216 | EFIAPI\r | |
217 | GetNextParameter(\r | |
218 | CHAR16 **Walker,\r | |
219 | CHAR16 **TempParameter\r | |
220 | );\r | |
221 | \r | |
222 | #endif //_SHELL_PARAMETERS_PROTOCOL_PROVIDER_HEADER_\r | |
223 | \r |