]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | Basic commands and command processing infrastructure for EBL\r | |
3 | \r | |
4 | Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>\r | |
5 | Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
6 | (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>\r | |
7 | \r | |
8 | This program and the accompanying materials\r | |
9 | are licensed and made available under the terms and conditions of the BSD License\r | |
10 | which accompanies this distribution. The full text of the license may be found at\r | |
11 | http://opensource.org/licenses/bsd-license.php\r | |
12 | \r | |
13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
15 | \r | |
16 | **/\r | |
17 | \r | |
18 | #include "Ebl.h"\r | |
19 | #include <Protocol/DiskIo.h>\r | |
20 | #include <Protocol/BlockIo.h>\r | |
21 | \r | |
22 | UINTN mCmdTableMaxIndex = EBL_MAX_COMMAND_COUNT;\r | |
23 | UINTN mCmdTableNextFreeIndex = 0;\r | |
24 | EBL_COMMAND_TABLE *mCmdTable[EBL_MAX_COMMAND_COUNT];\r | |
25 | \r | |
26 | /**\r | |
27 | Converts a lowercase Ascii character to upper one\r | |
28 | \r | |
29 | If Chr is lowercase Ascii character, then converts it to upper one.\r | |
30 | \r | |
31 | If Value >= 0xA0, then ASSERT().\r | |
32 | If (Value & 0x0F) >= 0x0A, then ASSERT().\r | |
33 | \r | |
34 | @param chr one Ascii character\r | |
35 | \r | |
36 | @return The uppercase value of Ascii character\r | |
37 | \r | |
38 | **/\r | |
39 | STATIC\r | |
40 | CHAR8\r | |
41 | AsciiToUpper (\r | |
42 | IN CHAR8 Chr\r | |
43 | )\r | |
44 | {\r | |
45 | return (UINT8) ((Chr >= 'a' && Chr <= 'z') ? Chr - ('a' - 'A') : Chr);\r | |
46 | }\r | |
47 | \r | |
48 | \r | |
49 | /**\r | |
50 | Case insensitive comparison of two Null-terminated Unicode strings with maximum\r | |
51 | lengths, and returns the difference between the first mismatched Unicode\r | |
52 | characters.\r | |
53 | This function compares the Null-terminated Unicode string FirstString to the\r | |
54 | Null-terminated Unicode string SecondString. At most, Length Unicode\r | |
55 | characters will be compared. If Length is 0, then 0 is returned. If\r | |
56 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r | |
57 | value returned is the first mismatched Unicode character in SecondString\r | |
58 | subtracted from the first mismatched Unicode character in FirstString.\r | |
59 | \r | |
60 | @param FirstString Pointer to a Null-terminated ASCII string.\r | |
61 | @param SecondString Pointer to a Null-terminated ASCII string.\r | |
62 | @param Length Max length to compare.\r | |
63 | \r | |
64 | @retval 0 FirstString is identical to SecondString using case insensitive\r | |
65 | comparisons.\r | |
66 | @retval !=0 FirstString is not identical to SecondString using case\r | |
67 | insensitive comparisons.\r | |
68 | \r | |
69 | **/\r | |
70 | INTN\r | |
71 | EFIAPI\r | |
72 | AsciiStrniCmp (\r | |
73 | IN CONST CHAR8 *FirstString,\r | |
74 | IN CONST CHAR8 *SecondString,\r | |
75 | IN UINTN Length\r | |
76 | )\r | |
77 | {\r | |
78 | if (Length == 0) {\r | |
79 | return 0;\r | |
80 | }\r | |
81 | \r | |
82 | while ((AsciiToUpper (*FirstString) != '\0') &&\r | |
83 | (AsciiToUpper (*FirstString) == AsciiToUpper (*SecondString)) &&\r | |
84 | (Length > 1)) {\r | |
85 | FirstString++;\r | |
86 | SecondString++;\r | |
87 | Length--;\r | |
88 | }\r | |
89 | \r | |
90 | return AsciiToUpper (*FirstString) - AsciiToUpper (*SecondString);\r | |
91 | }\r | |
92 | \r | |
93 | \r | |
94 | \r | |
95 | /**\r | |
96 | Add a command to the mCmdTable. If there is no free space in the command\r | |
97 | table ASSERT. The mCmdTable is maintained in alphabetical order and the\r | |
98 | new entry is inserted into its sorted position.\r | |
99 | \r | |
100 | @param Entry Command Entry to add to the CmdTable\r | |
101 | \r | |
102 | **/\r | |
103 | VOID\r | |
104 | EFIAPI\r | |
105 | EblAddCommand (\r | |
106 | IN const EBL_COMMAND_TABLE *Entry\r | |
107 | )\r | |
108 | {\r | |
109 | UINTN Count;\r | |
110 | \r | |
111 | if (mCmdTableNextFreeIndex == EBL_MAX_COMMAND_COUNT) {\r | |
112 | //\r | |
113 | // Ran out of space to store commands. Increase EBL_MAX_COMMAND_COUNT\r | |
114 | //\r | |
115 | ASSERT (FALSE);\r | |
116 | return;\r | |
117 | }\r | |
118 | \r | |
119 | //\r | |
120 | // Add command and Insertion sort array in the process\r | |
121 | //\r | |
122 | mCmdTable[mCmdTableNextFreeIndex] = (EBL_COMMAND_TABLE *)Entry;\r | |
123 | if (mCmdTableNextFreeIndex != 0) {\r | |
124 | for (Count = mCmdTableNextFreeIndex; Count > 0; Count--) {\r | |
125 | if (AsciiStriCmp (mCmdTable[Count - 1]->Name, Entry->Name) <= 0) {\r | |
126 | break;\r | |
127 | }\r | |
128 | \r | |
129 | mCmdTable[Count] = mCmdTable[Count - 1];\r | |
130 | }\r | |
131 | mCmdTable[Count] = (EBL_COMMAND_TABLE *)Entry;\r | |
132 | }\r | |
133 | \r | |
134 | mCmdTableNextFreeIndex++;\r | |
135 | }\r | |
136 | \r | |
137 | \r | |
138 | /**\r | |
139 | Add an set of commands to the command table. Most commonly used on static\r | |
140 | array of commands.\r | |
141 | \r | |
142 | @param EntryArray Pointer to array of command entries\r | |
143 | @param ArrayCount Number of command entries to add\r | |
144 | \r | |
145 | **/\r | |
146 | VOID\r | |
147 | EFIAPI\r | |
148 | EblAddCommands (\r | |
149 | IN const EBL_COMMAND_TABLE *EntryArray,\r | |
150 | IN UINTN ArrayCount\r | |
151 | )\r | |
152 | {\r | |
153 | UINTN Index;\r | |
154 | \r | |
155 | for (Index = 0; Index < ArrayCount; Index++) {\r | |
156 | EblAddCommand (&EntryArray[Index]);\r | |
157 | }\r | |
158 | }\r | |
159 | \r | |
160 | \r | |
161 | EBL_ADD_COMMAND_PROTOCOL gEblAddCommand = {\r | |
162 | EblAddCommand,\r | |
163 | EblAddCommands,\r | |
164 | EblGetCharKey,\r | |
165 | EblAnyKeyToContinueQtoQuit\r | |
166 | };\r | |
167 | \r | |
168 | \r | |
169 | \r | |
170 | /**\r | |
171 | Return the best matching command for the passed in command name. The match\r | |
172 | does not have to be exact, it just needs to be unique. This enables commands\r | |
173 | to be shortened to the smallest set of starting characters that is unique.\r | |
174 | \r | |
175 | @param CommandName Name of command to search for\r | |
176 | \r | |
177 | @return NULL CommandName did not match or was not unique\r | |
178 | Other Pointer to EBL_COMMAND_TABLE entry for CommandName\r | |
179 | \r | |
180 | **/\r | |
181 | EBL_COMMAND_TABLE *\r | |
182 | EblGetCommand (\r | |
183 | IN CHAR8 *CommandName\r | |
184 | )\r | |
185 | {\r | |
186 | UINTN Index;\r | |
187 | UINTN BestMatchCount;\r | |
188 | UINTN Length;\r | |
189 | EBL_COMMAND_TABLE *Match;\r | |
190 | CHAR8 *Str;\r | |
191 | \r | |
192 | Length = AsciiStrLen (CommandName);\r | |
193 | Str = AsciiStrStr (CommandName, ".");\r | |
194 | if (Str != NULL) {\r | |
195 | // If the command includes a trailing . command extension skip it for the match.\r | |
196 | // Example: hexdump.4\r | |
197 | Length = (UINTN)(Str - CommandName);\r | |
198 | }\r | |
199 | \r | |
200 | for (Index = 0, BestMatchCount = 0, Match = NULL; Index < mCmdTableNextFreeIndex; Index++) {\r | |
201 | if (AsciiStriCmp (mCmdTable[Index]->Name, CommandName) == 0) {\r | |
202 | // match a command exactly\r | |
203 | return mCmdTable[Index];\r | |
204 | }\r | |
205 | \r | |
206 | if (AsciiStrniCmp (CommandName, mCmdTable[Index]->Name, Length) == 0) {\r | |
207 | // partial match, so keep looking to make sure there is only one partial match\r | |
208 | BestMatchCount++;\r | |
209 | Match = mCmdTable[Index];\r | |
210 | }\r | |
211 | }\r | |
212 | \r | |
213 | if (BestMatchCount == 1) {\r | |
214 | return Match;\r | |
215 | }\r | |
216 | \r | |
217 | //\r | |
218 | // We had no matches or too many matches\r | |
219 | //\r | |
220 | return NULL;\r | |
221 | }\r | |
222 | \r | |
223 | \r | |
224 | UINTN\r | |
225 | CountNewLines (\r | |
226 | IN CHAR8 *Str\r | |
227 | )\r | |
228 | {\r | |
229 | UINTN Count;\r | |
230 | \r | |
231 | if (Str == NULL) {\r | |
232 | return 0;\r | |
233 | }\r | |
234 | \r | |
235 | for (Count = 0; *Str != '\0'; Str++) {\r | |
236 | if (Str[Count] == '\n') {\r | |
237 | Count++;\r | |
238 | }\r | |
239 | }\r | |
240 | \r | |
241 | return Count;\r | |
242 | }\r | |
243 | \r | |
244 | \r | |
245 | /**\r | |
246 | List out help information on all the commands or print extended information\r | |
247 | about a specific passed in command.\r | |
248 | \r | |
249 | Argv[0] - "help"\r | |
250 | Argv[1] - Command to display help about\r | |
251 | \r | |
252 | @param Argc Number of command arguments in Argv\r | |
253 | @param Argv Array of strings that represent the parsed command line.\r | |
254 | Argv[0] is the command name\r | |
255 | \r | |
256 | @return EFI_SUCCESS\r | |
257 | \r | |
258 | **/\r | |
259 | EFI_STATUS\r | |
260 | EFIAPI\r | |
261 | EblHelpCmd (\r | |
262 | IN UINTN Argc,\r | |
263 | IN CHAR8 **Argv\r | |
264 | )\r | |
265 | {\r | |
266 | UINTN Index;\r | |
267 | CHAR8 *Ptr;\r | |
268 | UINTN CurrentRow = 0;\r | |
269 | \r | |
270 | if (Argc == 1) {\r | |
271 | // Print all the commands\r | |
272 | AsciiPrint ("Embedded Boot Loader (EBL) commands (help command for more info):\n");\r | |
273 | CurrentRow++;\r | |
274 | for (Index = 0; Index < mCmdTableNextFreeIndex; Index++) {\r | |
275 | EblSetTextColor (EFI_YELLOW);\r | |
276 | AsciiPrint (" %a", mCmdTable[Index]->Name);\r | |
277 | EblSetTextColor (0);\r | |
278 | AsciiPrint ("%a\n", mCmdTable[Index]->HelpSummary);\r | |
279 | // Handle multi line help summaries\r | |
280 | CurrentRow += CountNewLines (mCmdTable[Index]->HelpSummary);\r | |
281 | if (EblAnyKeyToContinueQtoQuit (&CurrentRow, FALSE)) {\r | |
282 | break;\r | |
283 | }\r | |
284 | }\r | |
285 | } else if (Argv[1] != NULL) {\r | |
286 | // Print specific help\r | |
287 | for (Index = 0, CurrentRow = 0; Index < mCmdTableNextFreeIndex; Index++) {\r | |
288 | if (AsciiStriCmp (Argv[1], mCmdTable[Index]->Name) == 0) {\r | |
289 | Ptr = (mCmdTable[Index]->Help == NULL) ? mCmdTable[Index]->HelpSummary : mCmdTable[Index]->Help;\r | |
290 | AsciiPrint ("%a%a\n", Argv[1], Ptr);\r | |
291 | // Handle multi line help summaries\r | |
292 | CurrentRow += CountNewLines (Ptr);\r | |
293 | if (EblAnyKeyToContinueQtoQuit (&CurrentRow, FALSE)) {\r | |
294 | break;\r | |
295 | }\r | |
296 | }\r | |
297 | }\r | |
298 | }\r | |
299 | \r | |
300 | return EFI_SUCCESS;\r | |
301 | }\r | |
302 | \r | |
303 | \r | |
304 | /**\r | |
305 | Exit the EBL. If the command processor sees EFI_ABORTED return status it will\r | |
306 | exit the EBL.\r | |
307 | \r | |
308 | Argv[0] - "exit"\r | |
309 | \r | |
310 | @param Argc Number of command arguments in Argv\r | |
311 | @param Argv Array of strings that represent the parsed command line.\r | |
312 | Argv[0] is the command name\r | |
313 | \r | |
314 | @return EFI_ABORTED\r | |
315 | \r | |
316 | **/\r | |
317 | EFI_STATUS\r | |
318 | EFIAPI\r | |
319 | EblExitCmd (\r | |
320 | IN UINTN Argc,\r | |
321 | IN CHAR8 **Argv\r | |
322 | )\r | |
323 | {\r | |
324 | EFI_STATUS Status;\r | |
325 | UINTN MemoryMapSize;\r | |
326 | EFI_MEMORY_DESCRIPTOR *MemoryMap;\r | |
327 | UINTN MapKey;\r | |
328 | UINTN DescriptorSize;\r | |
329 | UINT32 DescriptorVersion;\r | |
330 | UINTN Pages;\r | |
331 | \r | |
332 | if (Argc > 1) {\r | |
333 | if (AsciiStriCmp (Argv[1], "efi") != 0) {\r | |
334 | return EFI_ABORTED;\r | |
335 | }\r | |
336 | } else if (Argc == 1) {\r | |
337 | return EFI_ABORTED;\r | |
338 | }\r | |
339 | \r | |
340 | MemoryMap = NULL;\r | |
341 | MemoryMapSize = 0;\r | |
342 | do {\r | |
343 | Status = gBS->GetMemoryMap (\r | |
344 | &MemoryMapSize,\r | |
345 | MemoryMap,\r | |
346 | &MapKey,\r | |
347 | &DescriptorSize,\r | |
348 | &DescriptorVersion\r | |
349 | );\r | |
350 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
351 | \r | |
352 | Pages = EFI_SIZE_TO_PAGES (MemoryMapSize) + 1;\r | |
353 | MemoryMap = AllocatePages (Pages);\r | |
354 | \r | |
355 | //\r | |
356 | // Get System MemoryMap\r | |
357 | //\r | |
358 | Status = gBS->GetMemoryMap (\r | |
359 | &MemoryMapSize,\r | |
360 | MemoryMap,\r | |
361 | &MapKey,\r | |
362 | &DescriptorSize,\r | |
363 | &DescriptorVersion\r | |
364 | );\r | |
365 | // Don't do anything between the GetMemoryMap() and ExitBootServices()\r | |
366 | if (!EFI_ERROR (Status)) {\r | |
367 | Status = gBS->ExitBootServices (gImageHandle, MapKey);\r | |
368 | if (EFI_ERROR (Status)) {\r | |
369 | FreePages (MemoryMap, Pages);\r | |
370 | MemoryMap = NULL;\r | |
371 | MemoryMapSize = 0;\r | |
372 | }\r | |
373 | }\r | |
374 | }\r | |
375 | } while (EFI_ERROR (Status));\r | |
376 | \r | |
377 | //\r | |
378 | // At this point it is very dangerous to do things EFI as most of EFI is now gone.\r | |
379 | // This command is useful if you are working with a debugger as it will shutdown\r | |
380 | // DMA and other things that could break a soft resets.\r | |
381 | //\r | |
382 | CpuDeadLoop ();\r | |
383 | \r | |
384 | // Should never get here, but makes the compiler happy\r | |
385 | return EFI_ABORTED;\r | |
386 | }\r | |
387 | \r | |
388 | \r | |
389 | /**\r | |
390 | Update the screen by decrementing the timeout value.\r | |
391 | This AsciiPrint has to match the AsciiPrint in\r | |
392 | EblPauseCmd.\r | |
393 | \r | |
394 | @param ElaspedTime Current timeout value remaining\r | |
395 | \r | |
396 | **/\r | |
397 | VOID\r | |
398 | EFIAPI\r | |
399 | EblPauseCallback (\r | |
400 | IN UINTN ElapsedTime\r | |
401 | )\r | |
402 | {\r | |
403 | AsciiPrint ("\b\b\b\b\b\b\b\b\b\b\b\b \b\b%3d seconds", ElapsedTime);\r | |
404 | }\r | |
405 | \r | |
406 | /**\r | |
407 | Pause until a key is pressed and abort the remaining commands on the command\r | |
408 | line. If no key is pressed continue processing the command line. This command\r | |
409 | allows the user to stop an operation from happening and return control to the\r | |
410 | command prompt.\r | |
411 | \r | |
412 | Argv[0] - "pause"\r | |
413 | Argv[1] - timeout value is decimal seconds\r | |
414 | \r | |
415 | @param Argc Number of command arguments in Argv\r | |
416 | @param Argv Array of strings that represent the parsed command line.\r | |
417 | Argv[0] is the command name\r | |
418 | \r | |
419 | @return EFI_SUCCESS Timeout expired with no input\r | |
420 | @return EFI_TIMEOUT Stop processing other commands on the same command line\r | |
421 | \r | |
422 | **/\r | |
423 | EFI_STATUS\r | |
424 | EFIAPI\r | |
425 | EblPauseCmd (\r | |
426 | IN UINTN Argc,\r | |
427 | IN CHAR8 **Argv\r | |
428 | )\r | |
429 | {\r | |
430 | EFI_STATUS Status;\r | |
431 | UINTN Delay;\r | |
432 | EFI_INPUT_KEY Key;\r | |
433 | \r | |
434 | Delay = (Argc == 1)? 10 : AsciiStrDecimalToUintn (Argv[1]);\r | |
435 | \r | |
436 | AsciiPrint ("Hit any key to break. You have %3d seconds", Delay);\r | |
437 | Status = EblGetCharKey (&Key, Delay, EblPauseCallback);\r | |
438 | AsciiPrint ("\n");\r | |
439 | \r | |
440 | // If we timeout then the pause succeeded thus return success\r | |
441 | // If we get a key return timeout to stop other command on this cmd line\r | |
442 | return (Status == EFI_SUCCESS) ? EFI_TIMEOUT : EFI_SUCCESS;;\r | |
443 | }\r | |
444 | \r | |
445 | \r | |
446 | /**\r | |
447 | On a debug build issue a software breakpoint to enter the debugger\r | |
448 | \r | |
449 | Argv[0] - "break"\r | |
450 | \r | |
451 | @param Argc Number of command arguments in Argv\r | |
452 | @param Argv Array of strings that represent the parsed command line.\r | |
453 | Argv[0] is the command name\r | |
454 | \r | |
455 | @return EFI_SUCCESS\r | |
456 | \r | |
457 | **/\r | |
458 | EFI_STATUS\r | |
459 | EFIAPI\r | |
460 | EblBreakPointCmd (\r | |
461 | IN UINTN Argc,\r | |
462 | IN CHAR8 **Argv\r | |
463 | )\r | |
464 | {\r | |
465 | CpuBreakpoint ();\r | |
466 | return EFI_SUCCESS;\r | |
467 | }\r | |
468 | \r | |
469 | \r | |
470 | /**\r | |
471 | Reset the system. If no Argument do a Cold reset. If argument use that reset type\r | |
472 | (W)arm = Warm Reset\r | |
473 | (S)hutdown = Shutdown Reset\r | |
474 | \r | |
475 | Argv[0] - "reset"\r | |
476 | Argv[1] - warm or shutdown reset type\r | |
477 | \r | |
478 | @param Argc Number of command arguments in Argv\r | |
479 | @param Argv Array of strings that represent the parsed command line.\r | |
480 | Argv[0] is the command name\r | |
481 | \r | |
482 | @return EFI_SUCCESS\r | |
483 | \r | |
484 | **/\r | |
485 | EFI_STATUS\r | |
486 | EFIAPI\r | |
487 | EblResetCmd (\r | |
488 | IN UINTN Argc,\r | |
489 | IN CHAR8 **Argv\r | |
490 | )\r | |
491 | {\r | |
492 | EFI_RESET_TYPE ResetType;\r | |
493 | \r | |
494 | ResetType = EfiResetCold;\r | |
495 | if (Argc > 1) {\r | |
496 | switch (*Argv[1]) {\r | |
497 | case 'W':\r | |
498 | case 'w':\r | |
499 | ResetType = EfiResetWarm;\r | |
500 | break;\r | |
501 | case 'S':\r | |
502 | case 's':\r | |
503 | ResetType = EfiResetShutdown;\r | |
504 | }\r | |
505 | }\r | |
506 | \r | |
507 | gRT->ResetSystem (ResetType, EFI_SUCCESS, 0, NULL);\r | |
508 | return EFI_SUCCESS;\r | |
509 | }\r | |
510 | \r | |
511 | \r | |
512 | /**\r | |
513 | Toggle page break global. This turns on and off prompting to Quit or hit any\r | |
514 | key to continue when a command is about to scroll the screen with its output\r | |
515 | \r | |
516 | Argv[0] - "page"\r | |
517 | Argv[1] - on or off\r | |
518 | \r | |
519 | @param Argc Number of command arguments in Argv\r | |
520 | @param Argv Array of strings that represent the parsed command line.\r | |
521 | Argv[0] is the command name\r | |
522 | \r | |
523 | @return EFI_SUCCESS\r | |
524 | \r | |
525 | **/\r | |
526 | EFI_STATUS\r | |
527 | EFIAPI\r | |
528 | EblPageCmd (\r | |
529 | IN UINTN Argc,\r | |
530 | IN CHAR8 **Argv\r | |
531 | )\r | |
532 | {\r | |
533 | if (Argc <= 1) {\r | |
534 | // toggle setting\r | |
535 | gPageBreak = (gPageBreak) ? FALSE : TRUE;\r | |
536 | } else {\r | |
537 | // use argv to set the value\r | |
538 | if ((Argv[1][0] == 'o') || (Argv[1][0] == 'O')) {\r | |
539 | if ((Argv[1][1] == 'n') || (Argv[1][1] == 'N')) {\r | |
540 | gPageBreak = TRUE;\r | |
541 | } else if ((Argv[1][1] == 'f') || (Argv[1][1] == 'F')) {\r | |
542 | gPageBreak = FALSE;\r | |
543 | } else {\r | |
544 | return EFI_INVALID_PARAMETER;\r | |
545 | }\r | |
546 | }\r | |
547 | }\r | |
548 | return EFI_SUCCESS;\r | |
549 | }\r | |
550 | \r | |
551 | EFI_STATUS\r | |
552 | EFIAPI\r | |
553 | EblSleepCmd (\r | |
554 | IN UINTN Argc,\r | |
555 | IN CHAR8 **Argv\r | |
556 | )\r | |
557 | {\r | |
558 | UINTN Delay;\r | |
559 | \r | |
560 | Delay = (Argc == 1)? 10 : AsciiStrDecimalToUintn (Argv[1]);\r | |
561 | \r | |
562 | gBS->Stall (Delay * 1000000);\r | |
563 | \r | |
564 | return EFI_SUCCESS;\r | |
565 | }\r | |
566 | \r | |
567 | CHAR8\r | |
568 | ConvertToTextLine (\r | |
569 | IN CHAR8 Character\r | |
570 | )\r | |
571 | {\r | |
572 | if (Character < ' ' || Character > '~') {\r | |
573 | return '.';\r | |
574 | } else {\r | |
575 | return Character;\r | |
576 | }\r | |
577 | }\r | |
578 | \r | |
579 | UINTN\r | |
580 | GetBytes (\r | |
581 | IN UINT8 *Address,\r | |
582 | IN UINTN Bytes\r | |
583 | )\r | |
584 | {\r | |
585 | UINTN Result = 0;\r | |
586 | \r | |
587 | if (Bytes >= 1) {\r | |
588 | Result = *Address++;\r | |
589 | }\r | |
590 | if (Bytes >= 2) {\r | |
591 | Result = (Result << 8) + *Address++;\r | |
592 | }\r | |
593 | if (Bytes >= 3) {\r | |
594 | Result = (Result << 8) + *Address++;\r | |
595 | }\r | |
596 | return Result;\r | |
597 | }\r | |
598 | \r | |
599 | CHAR8 mBlanks[] = " ";\r | |
600 | \r | |
601 | EFI_STATUS\r | |
602 | OutputData (\r | |
603 | IN UINT8 *Address,\r | |
604 | IN UINTN Length,\r | |
605 | IN UINTN Width,\r | |
606 | IN UINTN Offset\r | |
607 | )\r | |
608 | {\r | |
609 | UINT8 *EndAddress;\r | |
610 | UINTN Line;\r | |
611 | CHAR8 TextLine[0x11];\r | |
612 | UINTN CurrentRow = 0;\r | |
613 | UINTN Bytes;\r | |
614 | UINTN Spaces = 0;\r | |
615 | CHAR8 Blanks[80];\r | |
616 | \r | |
617 | AsciiStrCpyS (Blanks, sizeof Blanks, mBlanks);\r | |
618 | for (EndAddress = Address + Length; Address < EndAddress; Offset += Line) {\r | |
619 | AsciiPrint ("%08x: ", Offset);\r | |
620 | for (Line = 0; (Line < 0x10) && (Address < EndAddress);) {\r | |
621 | Bytes = EndAddress - Address;\r | |
622 | \r | |
623 | switch (Width) {\r | |
624 | case 4:\r | |
625 | if (Bytes >= 4) {\r | |
626 | AsciiPrint ("%08x ", *((UINT32 *)Address));\r | |
627 | TextLine[Line++] = ConvertToTextLine(*Address++);\r | |
628 | TextLine[Line++] = ConvertToTextLine(*Address++);\r | |
629 | TextLine[Line++] = ConvertToTextLine(*Address++);\r | |
630 | TextLine[Line++] = ConvertToTextLine(*Address++);\r | |
631 | } else {\r | |
632 | AsciiPrint ("%08x ", GetBytes(Address, Bytes));\r | |
633 | Address += Bytes;\r | |
634 | Line += Bytes;\r | |
635 | }\r | |
636 | break;\r | |
637 | \r | |
638 | case 2:\r | |
639 | if (Bytes >= 2) {\r | |
640 | AsciiPrint ("%04x ", *((UINT16 *)Address));\r | |
641 | TextLine[Line++] = ConvertToTextLine(*Address++);\r | |
642 | TextLine[Line++] = ConvertToTextLine(*Address++);\r | |
643 | } else {\r | |
644 | AsciiPrint ("%04x ", GetBytes(Address, Bytes));\r | |
645 | Address += Bytes;\r | |
646 | Line += Bytes;\r | |
647 | }\r | |
648 | break;\r | |
649 | \r | |
650 | case 1:\r | |
651 | AsciiPrint ("%02x ", *((UINT8 *)Address));\r | |
652 | TextLine[Line++] = ConvertToTextLine(*Address++);\r | |
653 | break;\r | |
654 | \r | |
655 | default:\r | |
656 | AsciiPrint ("Width must be 1, 2, or 4!\n");\r | |
657 | return EFI_INVALID_PARAMETER;\r | |
658 | }\r | |
659 | }\r | |
660 | \r | |
661 | // Pad spaces\r | |
662 | if (Line < 0x10) {\r | |
663 | switch (Width) {\r | |
664 | case 4:\r | |
665 | Spaces = 9 * ((0x10 - Line)/4);\r | |
666 | break;\r | |
667 | case 2:\r | |
668 | Spaces = 5 * ((0x10 - Line)/2);\r | |
669 | break;\r | |
670 | case 1:\r | |
671 | Spaces = 3 * (0x10 - Line);\r | |
672 | break;\r | |
673 | }\r | |
674 | \r | |
675 | Blanks[Spaces] = '\0';\r | |
676 | \r | |
677 | AsciiPrint(Blanks);\r | |
678 | \r | |
679 | Blanks[Spaces] = ' ';\r | |
680 | }\r | |
681 | \r | |
682 | TextLine[Line] = 0;\r | |
683 | AsciiPrint ("|%a|\n", TextLine);\r | |
684 | \r | |
685 | if (EblAnyKeyToContinueQtoQuit (&CurrentRow, FALSE)) {\r | |
686 | return EFI_END_OF_FILE;\r | |
687 | }\r | |
688 | }\r | |
689 | \r | |
690 | if (Length % Width != 0) {\r | |
691 | AsciiPrint ("%08x\n", Offset);\r | |
692 | }\r | |
693 | \r | |
694 | return EFI_SUCCESS;\r | |
695 | }\r | |
696 | \r | |
697 | \r | |
698 | /**\r | |
699 | See if command contains .# where # is a number. Return # as the Width\r | |
700 | or 1 as the default Width for commands.\r | |
701 | \r | |
702 | Example hexdump.4 returns a width of 4.\r | |
703 | \r | |
704 | @param Argv Argv[0] is the command name\r | |
705 | \r | |
706 | @return Width of command\r | |
707 | \r | |
708 | **/\r | |
709 | UINTN\r | |
710 | WidthFromCommandName (\r | |
711 | IN CHAR8 *Argv,\r | |
712 | IN UINTN Default\r | |
713 | )\r | |
714 | {\r | |
715 | CHAR8 *Str;\r | |
716 | UINTN Width;\r | |
717 | \r | |
718 | //Hexdump.2 HexDump.4 mean use a different width\r | |
719 | Str = AsciiStrStr (Argv, ".");\r | |
720 | if (Str != NULL) {\r | |
721 | Width = AsciiStrDecimalToUintn (Str + 1);\r | |
722 | if (Width == 0) {\r | |
723 | Width = Default;\r | |
724 | }\r | |
725 | } else {\r | |
726 | // Default answer\r | |
727 | return Default;\r | |
728 | }\r | |
729 | \r | |
730 | return Width;\r | |
731 | }\r | |
732 | \r | |
733 | #define HEXDUMP_CHUNK 1024\r | |
734 | \r | |
735 | /**\r | |
736 | Toggle page break global. This turns on and off prompting to Quit or hit any\r | |
737 | key to continue when a command is about to scroll the screen with its output\r | |
738 | \r | |
739 | Argv[0] - "hexdump"[.#] # is optional 1,2, or 4 for width\r | |
740 | Argv[1] - Device or File to dump.\r | |
741 | Argv[2] - Optional offset to start dumping\r | |
742 | Argv[3] - Optional number of bytes to dump\r | |
743 | \r | |
744 | @param Argc Number of command arguments in Argv\r | |
745 | @param Argv Array of strings that represent the parsed command line.\r | |
746 | Argv[0] is the command name\r | |
747 | \r | |
748 | @return EFI_SUCCESS\r | |
749 | \r | |
750 | **/\r | |
751 | EFI_STATUS\r | |
752 | EFIAPI\r | |
753 | EblHexdumpCmd (\r | |
754 | IN UINTN Argc,\r | |
755 | IN CHAR8 **Argv\r | |
756 | )\r | |
757 | {\r | |
758 | EFI_OPEN_FILE *File;\r | |
759 | VOID *Location;\r | |
760 | UINTN Size;\r | |
761 | UINTN Width;\r | |
762 | UINTN Offset = 0;\r | |
763 | EFI_STATUS Status;\r | |
764 | UINTN Chunk = HEXDUMP_CHUNK;\r | |
765 | \r | |
766 | if ((Argc < 2) || (Argc > 4)) {\r | |
767 | return EFI_INVALID_PARAMETER;\r | |
768 | }\r | |
769 | \r | |
770 | Width = WidthFromCommandName (Argv[0], 1);\r | |
771 | if ((Width != 1) && (Width != 2) && (Width != 4)) {\r | |
772 | return EFI_INVALID_PARAMETER;\r | |
773 | }\r | |
774 | \r | |
775 | File = EfiOpen (Argv[1], EFI_FILE_MODE_READ, 0);\r | |
776 | if (File == NULL) {\r | |
777 | return EFI_NOT_FOUND;\r | |
778 | }\r | |
779 | \r | |
780 | Location = AllocatePool (Chunk);\r | |
781 | Size = (Argc > 3) ? AsciiStrHexToUintn (Argv[3]) : EfiTell (File, NULL);\r | |
782 | \r | |
783 | Offset = 0;\r | |
784 | if (Argc > 2) {\r | |
785 | Offset = AsciiStrHexToUintn (Argv[2]);\r | |
786 | if (Offset > 0) {\r | |
787 | // Make sure size includes the part of the file we have skipped\r | |
788 | Size += Offset;\r | |
789 | }\r | |
790 | }\r | |
791 | \r | |
792 | Status = EfiSeek (File, Offset, EfiSeekStart);\r | |
793 | if (EFI_ERROR (Status)) {\r | |
794 | goto Exit;\r | |
795 | }\r | |
796 | \r | |
797 | for (; Offset + HEXDUMP_CHUNK <= Size; Offset += Chunk) {\r | |
798 | Chunk = HEXDUMP_CHUNK;\r | |
799 | Status = EfiRead (File, Location, &Chunk);\r | |
800 | if (EFI_ERROR(Status)) {\r | |
801 | AsciiPrint ("Error reading file content\n");\r | |
802 | goto Exit;\r | |
803 | }\r | |
804 | \r | |
805 | Status = OutputData (Location, Chunk, Width, File->BaseOffset + Offset);\r | |
806 | if (EFI_ERROR(Status)) {\r | |
807 | if (Status == EFI_END_OF_FILE) {\r | |
808 | Status = EFI_SUCCESS;\r | |
809 | }\r | |
810 | goto Exit;\r | |
811 | }\r | |
812 | }\r | |
813 | \r | |
814 | // Any left over?\r | |
815 | if (Offset < Size) {\r | |
816 | Chunk = Size - Offset;\r | |
817 | Status = EfiRead (File, Location, &Chunk);\r | |
818 | if (EFI_ERROR(Status)) {\r | |
819 | AsciiPrint ("Error reading file content\n");\r | |
820 | goto Exit;\r | |
821 | }\r | |
822 | \r | |
823 | Status = OutputData (Location, Chunk, Width, File->BaseOffset + Offset);\r | |
824 | if (EFI_ERROR(Status)) {\r | |
825 | if (Status == EFI_END_OF_FILE) {\r | |
826 | Status = EFI_SUCCESS;\r | |
827 | }\r | |
828 | goto Exit;\r | |
829 | }\r | |
830 | }\r | |
831 | \r | |
832 | Exit:\r | |
833 | EfiClose (File);\r | |
834 | \r | |
835 | FreePool (Location);\r | |
836 | \r | |
837 | return EFI_SUCCESS;\r | |
838 | }\r | |
839 | \r | |
840 | \r | |
841 | GLOBAL_REMOVE_IF_UNREFERENCED const EBL_COMMAND_TABLE mCmdTemplate[] =\r | |
842 | {\r | |
843 | {\r | |
844 | "reset",\r | |
845 | " [type]; Reset system. type = [warm] [shutdown] default is cold reset",\r | |
846 | NULL,\r | |
847 | EblResetCmd\r | |
848 | },\r | |
849 | {\r | |
850 | "exit",\r | |
851 | "; Exit EBL",\r | |
852 | NULL,\r | |
853 | EblExitCmd\r | |
854 | },\r | |
855 | {\r | |
856 | "help",\r | |
857 | " [cmd]; Help on cmd or a list of all commands if cmd is ommited",\r | |
858 | NULL,\r | |
859 | EblHelpCmd\r | |
860 | },\r | |
861 | {\r | |
862 | "break",\r | |
863 | "; Generate debugging breakpoint",\r | |
864 | NULL,\r | |
865 | EblBreakPointCmd\r | |
866 | },\r | |
867 | {\r | |
868 | "page",\r | |
869 | " [on|off]]; toggle promting on command output larger than screen",\r | |
870 | NULL,\r | |
871 | EblPageCmd\r | |
872 | },\r | |
873 | {\r | |
874 | "pause",\r | |
875 | " [sec]; Pause for sec[10] seconds. ",\r | |
876 | NULL,\r | |
877 | EblPauseCmd\r | |
878 | },\r | |
879 | {\r | |
880 | "sleep",\r | |
881 | " [sec]; Sleep for sec[10] seconds. ",\r | |
882 | NULL,\r | |
883 | EblSleepCmd\r | |
884 | },\r | |
885 | {\r | |
886 | "hexdump",\r | |
887 | "[.{1|2|4}] filename [Offset] [Size]; dump a file as hex .width",\r | |
888 | NULL,\r | |
889 | EblHexdumpCmd\r | |
890 | }\r | |
891 | };\r | |
892 | \r | |
893 | \r | |
894 | EFI_HANDLE gExternalCmdHandle = NULL;\r | |
895 | \r | |
896 | /**\r | |
897 | Initialize the commands in this in this file\r | |
898 | **/\r | |
899 | VOID\r | |
900 | EblInitializeCmdTable (\r | |
901 | VOID\r | |
902 | )\r | |
903 | {\r | |
904 | \r | |
905 | EblAddCommands (mCmdTemplate, sizeof (mCmdTemplate)/sizeof (EBL_COMMAND_TABLE));\r | |
906 | \r | |
907 | gBS->InstallProtocolInterface (\r | |
908 | &gExternalCmdHandle,\r | |
909 | &gEfiEblAddCommandProtocolGuid,\r | |
910 | EFI_NATIVE_INTERFACE,\r | |
911 | &gEblAddCommand\r | |
912 | );\r | |
913 | \r | |
914 | }\r | |
915 | \r | |
916 | \r | |
917 | VOID\r | |
918 | EblShutdownExternalCmdTable (\r | |
919 | VOID\r | |
920 | )\r | |
921 | {\r | |
922 | gBS->UninstallProtocolInterface (gExternalCmdHandle, &gEfiEblAddCommandProtocolGuid, &gEblAddCommand);\r | |
923 | }\r | |
924 | \r | |
925 | \r |