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a68d3ed0 | 1 | /* |
ea009d47 | 2 | * (C) Copyright 2000-2013 |
a68d3ed0 WD |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
4 | * | |
5 | * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
6 | * Andreas Heppel <aheppel@sysgo.de> | |
a000b795 KP |
7 | * |
8 | * Copyright 2011 Freescale Semiconductor, Inc. | |
9 | * | |
a68d3ed0 WD |
10 | * See file CREDITS for list of people who contributed to this |
11 | * project. | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU General Public License as | |
15 | * published by the Free Software Foundation; either version 2 of | |
16 | * the License, or (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
26 | * MA 02111-1307 USA | |
27 | */ | |
28 | ||
ea882baf | 29 | /* |
a68d3ed0 WD |
30 | * Support for persistent environment data |
31 | * | |
ea882baf WD |
32 | * The "environment" is stored on external storage as a list of '\0' |
33 | * terminated "name=value" strings. The end of the list is marked by | |
34 | * a double '\0'. The environment is preceeded by a 32 bit CRC over | |
35 | * the data part and, in case of redundant environment, a byte of | |
36 | * flags. | |
a68d3ed0 | 37 | * |
ea882baf WD |
38 | * This linearized representation will also be used before |
39 | * relocation, i. e. as long as we don't have a full C runtime | |
40 | * environment. After that, we use a hash table. | |
a68d3ed0 WD |
41 | */ |
42 | ||
43 | #include <common.h> | |
44 | #include <command.h> | |
45 | #include <environment.h> | |
ea882baf WD |
46 | #include <search.h> |
47 | #include <errno.h> | |
246c6922 | 48 | #include <malloc.h> |
2a3cb020 | 49 | #include <watchdog.h> |
a68d3ed0 WD |
50 | #include <linux/stddef.h> |
51 | #include <asm/byteorder.h> | |
a68d3ed0 | 52 | |
d87080b7 WD |
53 | DECLARE_GLOBAL_DATA_PTR; |
54 | ||
f3c615b8 ML |
55 | #if !defined(CONFIG_ENV_IS_IN_EEPROM) && \ |
56 | !defined(CONFIG_ENV_IS_IN_FLASH) && \ | |
57 | !defined(CONFIG_ENV_IS_IN_DATAFLASH) && \ | |
f3c615b8 | 58 | !defined(CONFIG_ENV_IS_IN_MMC) && \ |
57210c7c | 59 | !defined(CONFIG_ENV_IS_IN_FAT) && \ |
f3c615b8 ML |
60 | !defined(CONFIG_ENV_IS_IN_NAND) && \ |
61 | !defined(CONFIG_ENV_IS_IN_NVRAM) && \ | |
62 | !defined(CONFIG_ENV_IS_IN_ONENAND) && \ | |
63 | !defined(CONFIG_ENV_IS_IN_SPI_FLASH) && \ | |
0a85a9e7 | 64 | !defined(CONFIG_ENV_IS_IN_REMOTE) && \ |
2b74433f | 65 | !defined(CONFIG_ENV_IS_IN_UBI) && \ |
f3c615b8 | 66 | !defined(CONFIG_ENV_IS_NOWHERE) |
75eb82ec | 67 | # error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|ONENAND|\ |
2b74433f | 68 | SPI_FLASH|NVRAM|MMC|FAT|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE |
a68d3ed0 WD |
69 | #endif |
70 | ||
ea882baf WD |
71 | /* |
72 | * Maximum expected input data size for import command | |
73 | */ | |
74 | #define MAX_ENV_SIZE (1 << 20) /* 1 MiB */ | |
a68d3ed0 | 75 | |
da95427c | 76 | /* |
ea882baf | 77 | * This variable is incremented on each do_env_set(), so it can |
da95427c HS |
78 | * be used via get_env_id() as an indication, if the environment |
79 | * has changed or not. So it is possible to reread an environment | |
80 | * variable only if the environment was changed ... done so for | |
81 | * example in NetInitLoop() | |
82 | */ | |
2f70c49e | 83 | static int env_id = 1; |
a68d3ed0 | 84 | |
f3c615b8 | 85 | int get_env_id(void) |
2f70c49e HS |
86 | { |
87 | return env_id; | |
88 | } | |
a68d3ed0 | 89 | |
7ac2fe2d | 90 | #ifndef CONFIG_SPL_BUILD |
4c94f6c5 | 91 | /* |
ea882baf WD |
92 | * Command interface: print one or all environment variables |
93 | * | |
94 | * Returns 0 in case of error, or length of printed string | |
4c94f6c5 | 95 | */ |
be11235a | 96 | static int env_print(char *name, int flag) |
a68d3ed0 | 97 | { |
ea882baf | 98 | char *res = NULL; |
22a4a6c5 | 99 | ssize_t len; |
ea882baf WD |
100 | |
101 | if (name) { /* print a single name */ | |
102 | ENTRY e, *ep; | |
103 | ||
104 | e.key = name; | |
105 | e.data = NULL; | |
be11235a | 106 | hsearch_r(e, FIND, &ep, &env_htab, flag); |
ea882baf WD |
107 | if (ep == NULL) |
108 | return 0; | |
f3c615b8 | 109 | len = printf("%s=%s\n", ep->key, ep->data); |
ea882baf WD |
110 | return len; |
111 | } | |
a68d3ed0 | 112 | |
ea882baf | 113 | /* print whole list */ |
be11235a | 114 | len = hexport_r(&env_htab, '\n', flag, &res, 0, 0, NULL); |
a68d3ed0 | 115 | |
ea882baf WD |
116 | if (len > 0) { |
117 | puts(res); | |
118 | free(res); | |
119 | return len; | |
a68d3ed0 WD |
120 | } |
121 | ||
ea882baf | 122 | /* should never happen */ |
22a4a6c5 | 123 | printf("## Error: cannot export environment\n"); |
ea882baf | 124 | return 0; |
4c94f6c5 | 125 | } |
a68d3ed0 | 126 | |
088f1b19 KP |
127 | static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc, |
128 | char * const argv[]) | |
4c94f6c5 MF |
129 | { |
130 | int i; | |
131 | int rcode = 0; | |
be11235a JH |
132 | int env_flag = H_HIDE_DOT; |
133 | ||
134 | if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') { | |
135 | argc--; | |
136 | argv++; | |
137 | env_flag &= ~H_HIDE_DOT; | |
138 | } | |
a68d3ed0 | 139 | |
4c94f6c5 MF |
140 | if (argc == 1) { |
141 | /* print all env vars */ | |
be11235a | 142 | rcode = env_print(NULL, env_flag); |
ea882baf | 143 | if (!rcode) |
4c94f6c5 MF |
144 | return 1; |
145 | printf("\nEnvironment size: %d/%ld bytes\n", | |
146 | rcode, (ulong)ENV_SIZE); | |
147 | return 0; | |
148 | } | |
a68d3ed0 | 149 | |
4c94f6c5 | 150 | /* print selected env vars */ |
be11235a | 151 | env_flag &= ~H_HIDE_DOT; |
4c94f6c5 | 152 | for (i = 1; i < argc; ++i) { |
be11235a | 153 | int rc = env_print(argv[i], env_flag); |
ea882baf WD |
154 | if (!rc) { |
155 | printf("## Error: \"%s\" not defined\n", argv[i]); | |
4c94f6c5 | 156 | ++rcode; |
a68d3ed0 WD |
157 | } |
158 | } | |
4c94f6c5 | 159 | |
a68d3ed0 WD |
160 | return rcode; |
161 | } | |
162 | ||
a000b795 | 163 | #ifdef CONFIG_CMD_GREPENV |
d09b1787 IG |
164 | static int do_env_grep(cmd_tbl_t *cmdtp, int flag, |
165 | int argc, char * const argv[]) | |
a000b795 | 166 | { |
5a31ea04 | 167 | char *res = NULL; |
be29df6a | 168 | int len, grep_how, grep_what; |
a000b795 KP |
169 | |
170 | if (argc < 2) | |
4c12eeb8 | 171 | return CMD_RET_USAGE; |
a000b795 | 172 | |
be29df6a WD |
173 | grep_how = H_MATCH_SUBSTR; /* default: substring search */ |
174 | grep_what = H_MATCH_BOTH; /* default: grep names and values */ | |
d87244d5 WD |
175 | |
176 | while (argc > 1 && **(argv + 1) == '-') { | |
177 | char *arg = *++argv; | |
178 | ||
179 | --argc; | |
180 | while (*++arg) { | |
181 | switch (*arg) { | |
be29df6a WD |
182 | #ifdef CONFIG_REGEX |
183 | case 'e': /* use regex matching */ | |
184 | grep_how = H_MATCH_REGEX; | |
185 | break; | |
186 | #endif | |
d87244d5 | 187 | case 'n': /* grep for name */ |
be29df6a | 188 | grep_what = H_MATCH_KEY; |
d87244d5 WD |
189 | break; |
190 | case 'v': /* grep for value */ | |
be29df6a | 191 | grep_what = H_MATCH_DATA; |
d87244d5 WD |
192 | break; |
193 | case 'b': /* grep for both */ | |
be29df6a | 194 | grep_what = H_MATCH_BOTH; |
d87244d5 WD |
195 | break; |
196 | case '-': | |
197 | goto DONE; | |
198 | default: | |
199 | return CMD_RET_USAGE; | |
200 | } | |
201 | } | |
202 | } | |
203 | ||
204 | DONE: | |
5a31ea04 | 205 | len = hexport_r(&env_htab, '\n', |
be29df6a | 206 | flag | grep_what | grep_how, |
5a31ea04 | 207 | &res, 0, argc, argv); |
a000b795 | 208 | |
5a31ea04 WD |
209 | if (len > 0) { |
210 | puts(res); | |
211 | free(res); | |
a000b795 KP |
212 | } |
213 | ||
5a31ea04 WD |
214 | if (len < 2) |
215 | return 1; | |
216 | ||
217 | return 0; | |
a000b795 KP |
218 | } |
219 | #endif | |
7ac2fe2d | 220 | #endif /* CONFIG_SPL_BUILD */ |
a000b795 | 221 | |
c3f65258 GF |
222 | /* |
223 | * Set a new environment variable, | |
224 | * or replace or delete an existing one. | |
2598090b | 225 | */ |
088f1b19 | 226 | static int _do_env_set(int flag, int argc, char * const argv[]) |
c3f65258 GF |
227 | { |
228 | int i, len; | |
229 | char *name, *value, *s; | |
230 | ENTRY e, *ep; | |
24ab5a19 | 231 | int env_flag = H_INTERACTIVE; |
c3f65258 | 232 | |
24ab5a19 JH |
233 | debug("Initial value for argc=%d\n", argc); |
234 | while (argc > 1 && **(argv + 1) == '-') { | |
235 | char *arg = *++argv; | |
236 | ||
237 | --argc; | |
238 | while (*++arg) { | |
239 | switch (*arg) { | |
240 | case 'f': /* force */ | |
241 | env_flag |= H_FORCE; | |
242 | break; | |
243 | default: | |
244 | return CMD_RET_USAGE; | |
245 | } | |
246 | } | |
247 | } | |
248 | debug("Final value for argc=%d\n", argc); | |
c3f65258 GF |
249 | name = argv[1]; |
250 | value = argv[2]; | |
251 | ||
252 | if (strchr(name, '=')) { | |
253 | printf("## Error: illegal character '='" | |
254 | "in variable name \"%s\"\n", name); | |
255 | return 1; | |
256 | } | |
257 | ||
258 | env_id++; | |
c3f65258 | 259 | |
a68d3ed0 | 260 | /* Delete only ? */ |
d09b1787 | 261 | if (argc < 3 || argv[2] == NULL) { |
24ab5a19 | 262 | int rc = hdelete_r(name, &env_htab, env_flag); |
ea882baf | 263 | return !rc; |
a68d3ed0 WD |
264 | } |
265 | ||
266 | /* | |
ea882baf | 267 | * Insert / replace new value |
a68d3ed0 | 268 | */ |
f3c615b8 | 269 | for (i = 2, len = 0; i < argc; ++i) |
a68d3ed0 | 270 | len += strlen(argv[i]) + 1; |
f3c615b8 ML |
271 | |
272 | value = malloc(len); | |
273 | if (value == NULL) { | |
ea882baf | 274 | printf("## Can't malloc %d bytes\n", len); |
a68d3ed0 WD |
275 | return 1; |
276 | } | |
f3c615b8 | 277 | for (i = 2, s = value; i < argc; ++i) { |
ea882baf | 278 | char *v = argv[i]; |
a68d3ed0 | 279 | |
ea882baf | 280 | while ((*s++ = *v++) != '\0') |
a68d3ed0 | 281 | ; |
d09b1787 | 282 | *(s - 1) = ' '; |
ea882baf WD |
283 | } |
284 | if (s != value) | |
285 | *--s = '\0'; | |
286 | ||
d09b1787 IG |
287 | e.key = name; |
288 | e.data = value; | |
24ab5a19 | 289 | hsearch_r(e, ENTER, &ep, &env_htab, env_flag); |
ea882baf WD |
290 | free(value); |
291 | if (!ep) { | |
292 | printf("## Error inserting \"%s\" variable, errno=%d\n", | |
293 | name, errno); | |
294 | return 1; | |
a68d3ed0 | 295 | } |
a68d3ed0 | 296 | |
a68d3ed0 WD |
297 | return 0; |
298 | } | |
299 | ||
84b5e802 | 300 | int setenv(const char *varname, const char *varvalue) |
a68d3ed0 | 301 | { |
84b5e802 WD |
302 | const char * const argv[4] = { "setenv", varname, varvalue, NULL }; |
303 | ||
a7eb1d66 JH |
304 | /* before import into hashtable */ |
305 | if (!(gd->flags & GD_FLG_ENV_READY)) | |
306 | return 1; | |
307 | ||
d09b1787 | 308 | if (varvalue == NULL || varvalue[0] == '\0') |
84b5e802 | 309 | return _do_env_set(0, 2, (char * const *)argv); |
9ffd451a | 310 | else |
84b5e802 | 311 | return _do_env_set(0, 3, (char * const *)argv); |
a68d3ed0 WD |
312 | } |
313 | ||
d67f10ce SG |
314 | /** |
315 | * Set an environment variable to an integer value | |
316 | * | |
317 | * @param varname Environmet variable to set | |
318 | * @param value Value to set it to | |
319 | * @return 0 if ok, 1 on error | |
320 | */ | |
321 | int setenv_ulong(const char *varname, ulong value) | |
322 | { | |
323 | /* TODO: this should be unsigned */ | |
324 | char *str = simple_itoa(value); | |
325 | ||
326 | return setenv(varname, str); | |
327 | } | |
328 | ||
329 | /** | |
bfc59966 | 330 | * Set an environment variable to an value in hex |
d67f10ce SG |
331 | * |
332 | * @param varname Environmet variable to set | |
bfc59966 | 333 | * @param value Value to set it to |
d67f10ce SG |
334 | * @return 0 if ok, 1 on error |
335 | */ | |
bfc59966 | 336 | int setenv_hex(const char *varname, ulong value) |
d67f10ce SG |
337 | { |
338 | char str[17]; | |
339 | ||
bfc59966 | 340 | sprintf(str, "%lx", value); |
d67f10ce SG |
341 | return setenv(varname, str); |
342 | } | |
343 | ||
76b8f79c SG |
344 | ulong getenv_hex(const char *varname, ulong default_val) |
345 | { | |
346 | const char *s; | |
347 | ulong value; | |
348 | char *endp; | |
349 | ||
350 | s = getenv(varname); | |
351 | if (s) | |
352 | value = simple_strtoul(s, &endp, 16); | |
353 | if (!s || endp == s) | |
354 | return default_val; | |
355 | ||
356 | return value; | |
357 | } | |
358 | ||
7ac2fe2d | 359 | #ifndef CONFIG_SPL_BUILD |
088f1b19 | 360 | static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
a68d3ed0 | 361 | { |
47e26b1b | 362 | if (argc < 2) |
4c12eeb8 | 363 | return CMD_RET_USAGE; |
a68d3ed0 | 364 | |
ea882baf | 365 | return _do_env_set(flag, argc, argv); |
a68d3ed0 WD |
366 | } |
367 | ||
ea882baf | 368 | /* |
a68d3ed0 WD |
369 | * Prompt for environment variable |
370 | */ | |
c76fe474 | 371 | #if defined(CONFIG_CMD_ASKENV) |
f3c615b8 | 372 | int do_env_ask(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
a68d3ed0 | 373 | { |
6d0f6bcf | 374 | char message[CONFIG_SYS_CBSIZE]; |
7d85591d | 375 | int i, len, pos, size; |
a68d3ed0 | 376 | char *local_args[4]; |
7d85591d | 377 | char *endptr; |
a68d3ed0 WD |
378 | |
379 | local_args[0] = argv[0]; | |
380 | local_args[1] = argv[1]; | |
381 | local_args[2] = NULL; | |
382 | local_args[3] = NULL; | |
383 | ||
7d85591d WD |
384 | /* |
385 | * Check the syntax: | |
386 | * | |
387 | * env_ask envname [message1 ...] [size] | |
388 | */ | |
389 | if (argc == 1) | |
4c12eeb8 | 390 | return CMD_RET_USAGE; |
a68d3ed0 | 391 | |
7d85591d WD |
392 | /* |
393 | * We test the last argument if it can be converted | |
394 | * into a decimal number. If yes, we assume it's | |
395 | * the size. Otherwise we echo it as part of the | |
396 | * message. | |
397 | */ | |
398 | i = simple_strtoul(argv[argc - 1], &endptr, 10); | |
399 | if (*endptr != '\0') { /* no size */ | |
400 | size = CONFIG_SYS_CBSIZE - 1; | |
401 | } else { /* size given */ | |
402 | size = i; | |
403 | --argc; | |
404 | } | |
a68d3ed0 | 405 | |
7d85591d WD |
406 | if (argc <= 2) { |
407 | sprintf(message, "Please enter '%s': ", argv[1]); | |
408 | } else { | |
409 | /* env_ask envname message1 ... messagen [size] */ | |
410 | for (i = 2, pos = 0; i < argc; i++) { | |
f3c615b8 | 411 | if (pos) |
a68d3ed0 | 412 | message[pos++] = ' '; |
f3c615b8 | 413 | |
d09b1787 | 414 | strcpy(message + pos, argv[i]); |
a68d3ed0 WD |
415 | pos += strlen(argv[i]); |
416 | } | |
7d85591d | 417 | message[pos++] = ' '; |
a68d3ed0 | 418 | message[pos] = '\0'; |
a68d3ed0 WD |
419 | } |
420 | ||
6d0f6bcf JCPV |
421 | if (size >= CONFIG_SYS_CBSIZE) |
422 | size = CONFIG_SYS_CBSIZE - 1; | |
a68d3ed0 WD |
423 | |
424 | if (size <= 0) | |
425 | return 1; | |
426 | ||
427 | /* prompt for input */ | |
ea882baf | 428 | len = readline(message); |
a68d3ed0 WD |
429 | |
430 | if (size < len) | |
431 | console_buffer[size] = '\0'; | |
432 | ||
433 | len = 2; | |
434 | if (console_buffer[0] != '\0') { | |
435 | local_args[2] = console_buffer; | |
436 | len = 3; | |
437 | } | |
438 | ||
439 | /* Continue calling setenv code */ | |
ea882baf | 440 | return _do_env_set(flag, len, local_args); |
a68d3ed0 | 441 | } |
90253178 | 442 | #endif |
a68d3ed0 | 443 | |
5e2b3e0c JH |
444 | #if defined(CONFIG_CMD_ENV_CALLBACK) |
445 | static int print_static_binding(const char *var_name, const char *callback_name) | |
446 | { | |
447 | printf("\t%-20s %-20s\n", var_name, callback_name); | |
448 | ||
449 | return 0; | |
450 | } | |
451 | ||
452 | static int print_active_callback(ENTRY *entry) | |
453 | { | |
454 | struct env_clbk_tbl *clbkp; | |
455 | int i; | |
456 | int num_callbacks; | |
457 | ||
458 | if (entry->callback == NULL) | |
459 | return 0; | |
460 | ||
461 | /* look up the callback in the linker-list */ | |
462 | num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk); | |
463 | for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk); | |
464 | i < num_callbacks; | |
465 | i++, clbkp++) { | |
466 | #if defined(CONFIG_NEEDS_MANUAL_RELOC) | |
467 | if (entry->callback == clbkp->callback + gd->reloc_off) | |
468 | #else | |
469 | if (entry->callback == clbkp->callback) | |
470 | #endif | |
471 | break; | |
472 | } | |
473 | ||
474 | if (i == num_callbacks) | |
475 | /* this should probably never happen, but just in case... */ | |
476 | printf("\t%-20s %p\n", entry->key, entry->callback); | |
477 | else | |
478 | printf("\t%-20s %-20s\n", entry->key, clbkp->name); | |
479 | ||
480 | return 0; | |
481 | } | |
482 | ||
483 | /* | |
484 | * Print the callbacks available and what they are bound to | |
485 | */ | |
486 | int do_env_callback(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
487 | { | |
488 | struct env_clbk_tbl *clbkp; | |
489 | int i; | |
490 | int num_callbacks; | |
491 | ||
492 | /* Print the available callbacks */ | |
493 | puts("Available callbacks:\n"); | |
494 | puts("\tCallback Name\n"); | |
495 | puts("\t-------------\n"); | |
496 | num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk); | |
497 | for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk); | |
498 | i < num_callbacks; | |
499 | i++, clbkp++) | |
500 | printf("\t%s\n", clbkp->name); | |
501 | puts("\n"); | |
502 | ||
503 | /* Print the static bindings that may exist */ | |
504 | puts("Static callback bindings:\n"); | |
505 | printf("\t%-20s %-20s\n", "Variable Name", "Callback Name"); | |
506 | printf("\t%-20s %-20s\n", "-------------", "-------------"); | |
507 | env_attr_walk(ENV_CALLBACK_LIST_STATIC, print_static_binding); | |
508 | puts("\n"); | |
509 | ||
510 | /* walk through each variable and print the callback if it has one */ | |
511 | puts("Active callback bindings:\n"); | |
512 | printf("\t%-20s %-20s\n", "Variable Name", "Callback Name"); | |
513 | printf("\t%-20s %-20s\n", "-------------", "-------------"); | |
514 | hwalk_r(&env_htab, print_active_callback); | |
515 | return 0; | |
516 | } | |
517 | #endif | |
518 | ||
fffad71b JH |
519 | #if defined(CONFIG_CMD_ENV_FLAGS) |
520 | static int print_static_flags(const char *var_name, const char *flags) | |
521 | { | |
522 | enum env_flags_vartype type = env_flags_parse_vartype(flags); | |
267541f7 | 523 | enum env_flags_varaccess access = env_flags_parse_varaccess(flags); |
fffad71b | 524 | |
267541f7 JH |
525 | printf("\t%-20s %-20s %-20s\n", var_name, |
526 | env_flags_get_vartype_name(type), | |
527 | env_flags_get_varaccess_name(access)); | |
fffad71b JH |
528 | |
529 | return 0; | |
530 | } | |
531 | ||
532 | static int print_active_flags(ENTRY *entry) | |
533 | { | |
534 | enum env_flags_vartype type; | |
267541f7 | 535 | enum env_flags_varaccess access; |
fffad71b JH |
536 | |
537 | if (entry->flags == 0) | |
538 | return 0; | |
539 | ||
540 | type = (enum env_flags_vartype) | |
541 | (entry->flags & ENV_FLAGS_VARTYPE_BIN_MASK); | |
267541f7 JH |
542 | access = env_flags_parse_varaccess_from_binflags(entry->flags); |
543 | printf("\t%-20s %-20s %-20s\n", entry->key, | |
544 | env_flags_get_vartype_name(type), | |
545 | env_flags_get_varaccess_name(access)); | |
fffad71b JH |
546 | |
547 | return 0; | |
548 | } | |
549 | ||
550 | /* | |
551 | * Print the flags available and what variables have flags | |
552 | */ | |
553 | int do_env_flags(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
554 | { | |
555 | /* Print the available variable types */ | |
556 | printf("Available variable type flags (position %d):\n", | |
557 | ENV_FLAGS_VARTYPE_LOC); | |
558 | puts("\tFlag\tVariable Type Name\n"); | |
559 | puts("\t----\t------------------\n"); | |
560 | env_flags_print_vartypes(); | |
561 | puts("\n"); | |
562 | ||
267541f7 JH |
563 | /* Print the available variable access types */ |
564 | printf("Available variable access flags (position %d):\n", | |
565 | ENV_FLAGS_VARACCESS_LOC); | |
566 | puts("\tFlag\tVariable Access Name\n"); | |
567 | puts("\t----\t--------------------\n"); | |
568 | env_flags_print_varaccess(); | |
569 | puts("\n"); | |
570 | ||
fffad71b JH |
571 | /* Print the static flags that may exist */ |
572 | puts("Static flags:\n"); | |
267541f7 JH |
573 | printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type", |
574 | "Variable Access"); | |
575 | printf("\t%-20s %-20s %-20s\n", "-------------", "-------------", | |
576 | "---------------"); | |
fffad71b JH |
577 | env_attr_walk(ENV_FLAGS_LIST_STATIC, print_static_flags); |
578 | puts("\n"); | |
579 | ||
580 | /* walk through each variable and print the flags if non-default */ | |
581 | puts("Active flags:\n"); | |
267541f7 JH |
582 | printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type", |
583 | "Variable Access"); | |
584 | printf("\t%-20s %-20s %-20s\n", "-------------", "-------------", | |
585 | "---------------"); | |
fffad71b JH |
586 | hwalk_r(&env_htab, print_active_flags); |
587 | return 0; | |
588 | } | |
589 | #endif | |
590 | ||
ea882baf | 591 | /* |
246c6922 PT |
592 | * Interactively edit an environment variable |
593 | */ | |
594 | #if defined(CONFIG_CMD_EDITENV) | |
088f1b19 KP |
595 | static int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, |
596 | char * const argv[]) | |
246c6922 PT |
597 | { |
598 | char buffer[CONFIG_SYS_CBSIZE]; | |
599 | char *init_val; | |
246c6922 | 600 | |
47e26b1b | 601 | if (argc < 2) |
4c12eeb8 | 602 | return CMD_RET_USAGE; |
246c6922 PT |
603 | |
604 | /* Set read buffer to initial value or empty sting */ | |
605 | init_val = getenv(argv[1]); | |
606 | if (init_val) | |
7fcd9bbd | 607 | sprintf(buffer, "%s", init_val); |
246c6922 PT |
608 | else |
609 | buffer[0] = '\0'; | |
610 | ||
18a3cce9 JH |
611 | if (readline_into_buffer("edit: ", buffer, 0) < 0) |
612 | return 1; | |
246c6922 PT |
613 | |
614 | return setenv(argv[1], buffer); | |
615 | } | |
616 | #endif /* CONFIG_CMD_EDITENV */ | |
7ac2fe2d | 617 | #endif /* CONFIG_SPL_BUILD */ |
246c6922 | 618 | |
ea882baf | 619 | /* |
a68d3ed0 WD |
620 | * Look up variable from environment, |
621 | * return address of storage for that variable, | |
622 | * or NULL if not found | |
623 | */ | |
84b5e802 | 624 | char *getenv(const char *name) |
a68d3ed0 | 625 | { |
d09b1787 | 626 | if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */ |
ea882baf | 627 | ENTRY e, *ep; |
a68d3ed0 | 628 | |
91a76751 | 629 | WATCHDOG_RESET(); |
2a3cb020 | 630 | |
d09b1787 IG |
631 | e.key = name; |
632 | e.data = NULL; | |
c4e0057f | 633 | hsearch_r(e, FIND, &ep, &env_htab, 0); |
91a76751 | 634 | |
f3c615b8 | 635 | return ep ? ep->data : NULL; |
a68d3ed0 WD |
636 | } |
637 | ||
ea882baf | 638 | /* restricted capabilities before import */ |
ea882baf WD |
639 | if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0) |
640 | return (char *)(gd->env_buf); | |
91a76751 | 641 | |
ea882baf | 642 | return NULL; |
a68d3ed0 WD |
643 | } |
644 | ||
ea882baf WD |
645 | /* |
646 | * Look up variable from environment for restricted C runtime env. | |
647 | */ | |
84b5e802 | 648 | int getenv_f(const char *name, char *buf, unsigned len) |
a68d3ed0 WD |
649 | { |
650 | int i, nxt; | |
651 | ||
d09b1787 | 652 | for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) { |
a68d3ed0 WD |
653 | int val, n; |
654 | ||
f3c615b8 ML |
655 | for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) { |
656 | if (nxt >= CONFIG_ENV_SIZE) | |
657 | return -1; | |
a68d3ed0 | 658 | } |
f3c615b8 ML |
659 | |
660 | val = envmatch((uchar *)name, i); | |
661 | if (val < 0) | |
a68d3ed0 | 662 | continue; |
9ed4a958 | 663 | |
a68d3ed0 | 664 | /* found; copy out */ |
f3c615b8 | 665 | for (n = 0; n < len; ++n, ++buf) { |
d09b1787 IG |
666 | *buf = env_get_char(val++); |
667 | if (*buf == '\0') | |
9ed4a958 WD |
668 | return n; |
669 | } | |
670 | ||
671 | if (n) | |
672 | *--buf = '\0'; | |
673 | ||
a02a884b WD |
674 | printf("env_buf [%d bytes] too small for value of \"%s\"\n", |
675 | len, name); | |
9ed4a958 WD |
676 | |
677 | return n; | |
a68d3ed0 | 678 | } |
d09b1787 | 679 | |
f3c615b8 | 680 | return -1; |
a68d3ed0 WD |
681 | } |
682 | ||
4a9b4131 SG |
683 | /** |
684 | * Decode the integer value of an environment variable and return it. | |
685 | * | |
686 | * @param name Name of environemnt variable | |
687 | * @param base Number base to use (normally 10, or 16 for hex) | |
688 | * @param default_val Default value to return if the variable is not | |
689 | * found | |
690 | * @return the decoded value, or default_val if not found | |
691 | */ | |
692 | ulong getenv_ulong(const char *name, int base, ulong default_val) | |
693 | { | |
694 | /* | |
695 | * We can use getenv() here, even before relocation, since the | |
696 | * environment variable value is an integer and thus short. | |
697 | */ | |
698 | const char *str = getenv(name); | |
699 | ||
700 | return str ? simple_strtoul(str, NULL, base) : default_val; | |
701 | } | |
702 | ||
7ac2fe2d | 703 | #ifndef CONFIG_SPL_BUILD |
bdab39d3 | 704 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) |
088f1b19 KP |
705 | static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc, |
706 | char * const argv[]) | |
a68d3ed0 | 707 | { |
f3c615b8 | 708 | printf("Saving Environment to %s...\n", env_name_spec); |
a68d3ed0 | 709 | |
f3c615b8 | 710 | return saveenv() ? 1 : 0; |
a68d3ed0 | 711 | } |
8bde7f77 | 712 | |
ba69dc26 | 713 | U_BOOT_CMD( |
ea882baf | 714 | saveenv, 1, 0, do_env_save, |
2fb2604d | 715 | "save environment variables to persistent storage", |
a89c33db | 716 | "" |
ba69dc26 | 717 | ); |
a68d3ed0 | 718 | #endif |
7ac2fe2d | 719 | #endif /* CONFIG_SPL_BUILD */ |
a68d3ed0 WD |
720 | |
721 | ||
ea882baf | 722 | /* |
a68d3ed0 WD |
723 | * Match a name / name=value pair |
724 | * | |
725 | * s1 is either a simple 'name', or a 'name=value' pair. | |
726 | * i2 is the environment index for a 'name2=value2' pair. | |
d09b1787 | 727 | * If the names match, return the index for the value2, else -1. |
a68d3ed0 | 728 | */ |
f3c615b8 | 729 | int envmatch(uchar *s1, int i2) |
a68d3ed0 | 730 | { |
586197df JH |
731 | if (s1 == NULL) |
732 | return -1; | |
733 | ||
a68d3ed0 WD |
734 | while (*s1 == env_get_char(i2++)) |
735 | if (*s1++ == '=') | |
f3c615b8 | 736 | return i2; |
d09b1787 | 737 | |
a68d3ed0 | 738 | if (*s1 == '\0' && env_get_char(i2-1) == '=') |
f3c615b8 | 739 | return i2; |
d09b1787 | 740 | |
f3c615b8 | 741 | return -1; |
a68d3ed0 | 742 | } |
8bde7f77 | 743 | |
7ac2fe2d | 744 | #ifndef CONFIG_SPL_BUILD |
b64b7c3d | 745 | static int do_env_default(cmd_tbl_t *cmdtp, int __flag, |
d09b1787 | 746 | int argc, char * const argv[]) |
ea882baf | 747 | { |
b64b7c3d | 748 | int all = 0, flag = 0; |
f3c615b8 | 749 | |
b64b7c3d GF |
750 | debug("Initial value for argc=%d\n", argc); |
751 | while (--argc > 0 && **++argv == '-') { | |
752 | char *arg = *argv; | |
753 | ||
754 | while (*++arg) { | |
755 | switch (*arg) { | |
756 | case 'a': /* default all */ | |
757 | all = 1; | |
758 | break; | |
759 | case 'f': /* force */ | |
760 | flag |= H_FORCE; | |
761 | break; | |
762 | default: | |
763 | return cmd_usage(cmdtp); | |
764 | } | |
765 | } | |
766 | } | |
767 | debug("Final value for argc=%d\n", argc); | |
768 | if (all && (argc == 0)) { | |
769 | /* Reset the whole environment */ | |
770 | set_default_env("## Resetting to default environment\n"); | |
771 | return 0; | |
772 | } | |
773 | if (!all && (argc > 0)) { | |
774 | /* Reset individual variables */ | |
775 | set_default_vars(argc, argv); | |
776 | return 0; | |
777 | } | |
778 | ||
779 | return cmd_usage(cmdtp); | |
ea882baf WD |
780 | } |
781 | ||
d09b1787 IG |
782 | static int do_env_delete(cmd_tbl_t *cmdtp, int flag, |
783 | int argc, char * const argv[]) | |
ea882baf | 784 | { |
9d8d661d JH |
785 | int env_flag = H_INTERACTIVE; |
786 | int ret = 0; | |
787 | ||
788 | debug("Initial value for argc=%d\n", argc); | |
789 | while (argc > 1 && **(argv + 1) == '-') { | |
790 | char *arg = *++argv; | |
791 | ||
792 | --argc; | |
793 | while (*++arg) { | |
794 | switch (*arg) { | |
795 | case 'f': /* force */ | |
796 | env_flag |= H_FORCE; | |
797 | break; | |
798 | default: | |
799 | return CMD_RET_USAGE; | |
800 | } | |
801 | } | |
802 | } | |
803 | debug("Final value for argc=%d\n", argc); | |
804 | ||
805 | env_id++; | |
806 | ||
807 | while (--argc > 0) { | |
808 | char *name = *++argv; | |
809 | ||
810 | if (!hdelete_r(name, &env_htab, env_flag)) | |
811 | ret = 1; | |
812 | } | |
813 | ||
814 | return ret; | |
ea882baf WD |
815 | } |
816 | ||
0c79cda0 | 817 | #ifdef CONFIG_CMD_EXPORTENV |
ea882baf | 818 | /* |
37f2fe74 | 819 | * env export [-t | -b | -c] [-s size] addr [var ...] |
ea882baf WD |
820 | * -t: export as text format; if size is given, data will be |
821 | * padded with '\0' bytes; if not, one terminating '\0' | |
822 | * will be added (which is included in the "filesize" | |
823 | * setting so you can for exmple copy this to flash and | |
824 | * keep the termination). | |
825 | * -b: export as binary format (name=value pairs separated by | |
826 | * '\0', list end marked by double "\0\0") | |
827 | * -c: export as checksum protected environment format as | |
828 | * used for example by "saveenv" command | |
37f2fe74 WD |
829 | * -s size: |
830 | * size of output buffer | |
ea882baf | 831 | * addr: memory address where environment gets stored |
37f2fe74 WD |
832 | * var... List of variable names that get included into the |
833 | * export. Without arguments, the whole environment gets | |
834 | * exported. | |
ea882baf WD |
835 | * |
836 | * With "-c" and size is NOT given, then the export command will | |
837 | * format the data as currently used for the persistent storage, | |
838 | * i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and | |
839 | * prepend a valid CRC32 checksum and, in case of resundant | |
840 | * environment, a "current" redundancy flag. If size is given, this | |
841 | * value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32 | |
842 | * checksum and redundancy flag will be inserted. | |
843 | * | |
844 | * With "-b" and "-t", always only the real data (including a | |
845 | * terminating '\0' byte) will be written; here the optional size | |
846 | * argument will be used to make sure not to overflow the user | |
847 | * provided buffer; the command will abort if the size is not | |
848 | * sufficient. Any remainign space will be '\0' padded. | |
849 | * | |
850 | * On successful return, the variable "filesize" will be set. | |
851 | * Note that filesize includes the trailing/terminating '\0' byte(s). | |
852 | * | |
853 | * Usage szenario: create a text snapshot/backup of the current settings: | |
854 | * | |
855 | * => env export -t 100000 | |
856 | * => era ${backup_addr} +${filesize} | |
857 | * => cp.b 100000 ${backup_addr} ${filesize} | |
858 | * | |
859 | * Re-import this snapshot, deleting all other settings: | |
860 | * | |
861 | * => env import -d -t ${backup_addr} | |
862 | */ | |
d09b1787 IG |
863 | static int do_env_export(cmd_tbl_t *cmdtp, int flag, |
864 | int argc, char * const argv[]) | |
ea882baf WD |
865 | { |
866 | char buf[32]; | |
867 | char *addr, *cmd, *res; | |
37f2fe74 | 868 | size_t size = 0; |
ea882baf WD |
869 | ssize_t len; |
870 | env_t *envp; | |
871 | char sep = '\n'; | |
872 | int chk = 0; | |
873 | int fmt = 0; | |
874 | ||
875 | cmd = *argv; | |
876 | ||
877 | while (--argc > 0 && **++argv == '-') { | |
878 | char *arg = *argv; | |
879 | while (*++arg) { | |
880 | switch (*arg) { | |
881 | case 'b': /* raw binary format */ | |
882 | if (fmt++) | |
883 | goto sep_err; | |
884 | sep = '\0'; | |
885 | break; | |
886 | case 'c': /* external checksum format */ | |
887 | if (fmt++) | |
888 | goto sep_err; | |
889 | sep = '\0'; | |
890 | chk = 1; | |
891 | break; | |
37f2fe74 WD |
892 | case 's': /* size given */ |
893 | if (--argc <= 0) | |
894 | return cmd_usage(cmdtp); | |
895 | size = simple_strtoul(*++argv, NULL, 16); | |
896 | goto NXTARG; | |
ea882baf WD |
897 | case 't': /* text format */ |
898 | if (fmt++) | |
899 | goto sep_err; | |
900 | sep = '\n'; | |
901 | break; | |
902 | default: | |
4c12eeb8 | 903 | return CMD_RET_USAGE; |
ea882baf WD |
904 | } |
905 | } | |
37f2fe74 | 906 | NXTARG: ; |
ea882baf WD |
907 | } |
908 | ||
f3c615b8 | 909 | if (argc < 1) |
4c12eeb8 | 910 | return CMD_RET_USAGE; |
8bde7f77 | 911 | |
ea882baf WD |
912 | addr = (char *)simple_strtoul(argv[0], NULL, 16); |
913 | ||
37f2fe74 | 914 | if (size) |
ea882baf | 915 | memset(addr, '\0', size); |
37f2fe74 WD |
916 | |
917 | argc--; | |
918 | argv++; | |
ea882baf WD |
919 | |
920 | if (sep) { /* export as text file */ | |
ea009d47 WD |
921 | len = hexport_r(&env_htab, sep, |
922 | H_MATCH_KEY | H_MATCH_IDENT, | |
923 | &addr, size, argc, argv); | |
ea882baf | 924 | if (len < 0) { |
d09b1787 | 925 | error("Cannot export environment: errno = %d\n", errno); |
ea882baf WD |
926 | return 1; |
927 | } | |
8c3aff52 | 928 | sprintf(buf, "%zX", (size_t)len); |
ea882baf WD |
929 | setenv("filesize", buf); |
930 | ||
931 | return 0; | |
932 | } | |
933 | ||
934 | envp = (env_t *)addr; | |
935 | ||
936 | if (chk) /* export as checksum protected block */ | |
937 | res = (char *)envp->data; | |
938 | else /* export as raw binary data */ | |
939 | res = addr; | |
940 | ||
ea009d47 WD |
941 | len = hexport_r(&env_htab, '\0', |
942 | H_MATCH_KEY | H_MATCH_IDENT, | |
943 | &res, ENV_SIZE, argc, argv); | |
ea882baf | 944 | if (len < 0) { |
d09b1787 | 945 | error("Cannot export environment: errno = %d\n", errno); |
ea882baf WD |
946 | return 1; |
947 | } | |
948 | ||
949 | if (chk) { | |
d09b1787 | 950 | envp->crc = crc32(0, envp->data, ENV_SIZE); |
ea882baf WD |
951 | #ifdef CONFIG_ENV_ADDR_REDUND |
952 | envp->flags = ACTIVE_FLAG; | |
953 | #endif | |
954 | } | |
41ef372c | 955 | setenv_hex("filesize", len + offsetof(env_t, data)); |
ea882baf WD |
956 | |
957 | return 0; | |
958 | ||
959 | sep_err: | |
d09b1787 | 960 | printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", cmd); |
ea882baf WD |
961 | return 1; |
962 | } | |
0c79cda0 | 963 | #endif |
ea882baf | 964 | |
0c79cda0 | 965 | #ifdef CONFIG_CMD_IMPORTENV |
ea882baf WD |
966 | /* |
967 | * env import [-d] [-t | -b | -c] addr [size] | |
968 | * -d: delete existing environment before importing; | |
969 | * otherwise overwrite / append to existion definitions | |
970 | * -t: assume text format; either "size" must be given or the | |
971 | * text data must be '\0' terminated | |
972 | * -b: assume binary format ('\0' separated, "\0\0" terminated) | |
973 | * -c: assume checksum protected environment format | |
974 | * addr: memory address to read from | |
975 | * size: length of input data; if missing, proper '\0' | |
976 | * termination is mandatory | |
977 | */ | |
d09b1787 IG |
978 | static int do_env_import(cmd_tbl_t *cmdtp, int flag, |
979 | int argc, char * const argv[]) | |
ea882baf WD |
980 | { |
981 | char *cmd, *addr; | |
982 | char sep = '\n'; | |
983 | int chk = 0; | |
984 | int fmt = 0; | |
985 | int del = 0; | |
986 | size_t size; | |
987 | ||
988 | cmd = *argv; | |
989 | ||
990 | while (--argc > 0 && **++argv == '-') { | |
991 | char *arg = *argv; | |
992 | while (*++arg) { | |
993 | switch (*arg) { | |
994 | case 'b': /* raw binary format */ | |
995 | if (fmt++) | |
996 | goto sep_err; | |
997 | sep = '\0'; | |
998 | break; | |
999 | case 'c': /* external checksum format */ | |
1000 | if (fmt++) | |
1001 | goto sep_err; | |
1002 | sep = '\0'; | |
1003 | chk = 1; | |
1004 | break; | |
1005 | case 't': /* text format */ | |
1006 | if (fmt++) | |
1007 | goto sep_err; | |
1008 | sep = '\n'; | |
1009 | break; | |
1010 | case 'd': | |
1011 | del = 1; | |
1012 | break; | |
1013 | default: | |
4c12eeb8 | 1014 | return CMD_RET_USAGE; |
ea882baf WD |
1015 | } |
1016 | } | |
1017 | } | |
1018 | ||
f3c615b8 | 1019 | if (argc < 1) |
4c12eeb8 | 1020 | return CMD_RET_USAGE; |
ea882baf WD |
1021 | |
1022 | if (!fmt) | |
1023 | printf("## Warning: defaulting to text format\n"); | |
1024 | ||
1025 | addr = (char *)simple_strtoul(argv[0], NULL, 16); | |
1026 | ||
1027 | if (argc == 2) { | |
1028 | size = simple_strtoul(argv[1], NULL, 16); | |
1029 | } else { | |
1030 | char *s = addr; | |
1031 | ||
1032 | size = 0; | |
1033 | ||
1034 | while (size < MAX_ENV_SIZE) { | |
1035 | if ((*s == sep) && (*(s+1) == '\0')) | |
1036 | break; | |
1037 | ++s; | |
1038 | ++size; | |
1039 | } | |
1040 | if (size == MAX_ENV_SIZE) { | |
1041 | printf("## Warning: Input data exceeds %d bytes" | |
1042 | " - truncated\n", MAX_ENV_SIZE); | |
1043 | } | |
d3f80c77 | 1044 | size += 2; |
79afc88d | 1045 | printf("## Info: input data size = %zu = 0x%zX\n", size, size); |
ea882baf WD |
1046 | } |
1047 | ||
1048 | if (chk) { | |
1049 | uint32_t crc; | |
1050 | env_t *ep = (env_t *)addr; | |
1051 | ||
1052 | size -= offsetof(env_t, data); | |
1053 | memcpy(&crc, &ep->crc, sizeof(crc)); | |
1054 | ||
1055 | if (crc32(0, ep->data, size) != crc) { | |
1056 | puts("## Error: bad CRC, import failed\n"); | |
1057 | return 1; | |
1058 | } | |
1059 | addr = (char *)ep->data; | |
1060 | } | |
1061 | ||
348b1f1c | 1062 | if (himport_r(&env_htab, addr, size, sep, del ? 0 : H_NOCLEAR, |
c4e0057f | 1063 | 0, NULL) == 0) { |
ea882baf WD |
1064 | error("Environment import failed: errno = %d\n", errno); |
1065 | return 1; | |
1066 | } | |
1067 | gd->flags |= GD_FLG_ENV_READY; | |
1068 | ||
1069 | return 0; | |
1070 | ||
1071 | sep_err: | |
1072 | printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", | |
1073 | cmd); | |
1074 | return 1; | |
1075 | } | |
0c79cda0 | 1076 | #endif |
ea882baf | 1077 | |
ea882baf WD |
1078 | /* |
1079 | * New command line interface: "env" command with subcommands | |
1080 | */ | |
1081 | static cmd_tbl_t cmd_env_sub[] = { | |
1082 | #if defined(CONFIG_CMD_ASKENV) | |
1083 | U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""), | |
1084 | #endif | |
1085 | U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""), | |
9d8d661d | 1086 | U_BOOT_CMD_MKENT(delete, CONFIG_SYS_MAXARGS, 0, do_env_delete, "", ""), |
ea882baf WD |
1087 | #if defined(CONFIG_CMD_EDITENV) |
1088 | U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""), | |
1089 | #endif | |
5e2b3e0c JH |
1090 | #if defined(CONFIG_CMD_ENV_CALLBACK) |
1091 | U_BOOT_CMD_MKENT(callbacks, 1, 0, do_env_callback, "", ""), | |
1092 | #endif | |
fffad71b JH |
1093 | #if defined(CONFIG_CMD_ENV_FLAGS) |
1094 | U_BOOT_CMD_MKENT(flags, 1, 0, do_env_flags, "", ""), | |
1095 | #endif | |
0c79cda0 | 1096 | #if defined(CONFIG_CMD_EXPORTENV) |
ea882baf | 1097 | U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""), |
0c79cda0 | 1098 | #endif |
a000b795 KP |
1099 | #if defined(CONFIG_CMD_GREPENV) |
1100 | U_BOOT_CMD_MKENT(grep, CONFIG_SYS_MAXARGS, 1, do_env_grep, "", ""), | |
1101 | #endif | |
0c79cda0 | 1102 | #if defined(CONFIG_CMD_IMPORTENV) |
ea882baf | 1103 | U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""), |
0c79cda0 | 1104 | #endif |
ea882baf WD |
1105 | U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""), |
1106 | #if defined(CONFIG_CMD_RUN) | |
1107 | U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""), | |
1108 | #endif | |
1109 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) | |
1110 | U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""), | |
1111 | #endif | |
1112 | U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""), | |
1113 | }; | |
1114 | ||
2e5167cc | 1115 | #if defined(CONFIG_NEEDS_MANUAL_RELOC) |
60f7da1f HS |
1116 | void env_reloc(void) |
1117 | { | |
1118 | fixup_cmdtable(cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); | |
1119 | } | |
1120 | #endif | |
1121 | ||
f3c615b8 | 1122 | static int do_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
ea882baf WD |
1123 | { |
1124 | cmd_tbl_t *cp; | |
1125 | ||
5904da02 | 1126 | if (argc < 2) |
4c12eeb8 | 1127 | return CMD_RET_USAGE; |
5904da02 | 1128 | |
ea882baf WD |
1129 | /* drop initial "env" arg */ |
1130 | argc--; | |
1131 | argv++; | |
1132 | ||
1133 | cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); | |
1134 | ||
1135 | if (cp) | |
1136 | return cp->cmd(cmdtp, flag, argc, argv); | |
1137 | ||
4c12eeb8 | 1138 | return CMD_RET_USAGE; |
ea882baf WD |
1139 | } |
1140 | ||
088f1b19 KP |
1141 | #ifdef CONFIG_SYS_LONGHELP |
1142 | static char env_help_text[] = | |
ea882baf WD |
1143 | #if defined(CONFIG_CMD_ASKENV) |
1144 | "ask name [message] [size] - ask for environment variable\nenv " | |
5e2b3e0c JH |
1145 | #endif |
1146 | #if defined(CONFIG_CMD_ENV_CALLBACK) | |
1147 | "callbacks - print callbacks and their associated variables\nenv " | |
ea882baf | 1148 | #endif |
b64b7c3d GF |
1149 | "default [-f] -a - [forcibly] reset default environment\n" |
1150 | "env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n" | |
9d8d661d | 1151 | "env delete [-f] var [...] - [forcibly] delete variable(s)\n" |
ea882baf WD |
1152 | #if defined(CONFIG_CMD_EDITENV) |
1153 | "env edit name - edit environment variable\n" | |
1154 | #endif | |
4796bc4b | 1155 | #if defined(CONFIG_CMD_EXPORTENV) |
37f2fe74 | 1156 | "env export [-t | -b | -c] [-s size] addr [var ...] - export environment\n" |
4796bc4b | 1157 | #endif |
fffad71b JH |
1158 | #if defined(CONFIG_CMD_ENV_FLAGS) |
1159 | "env flags - print variables that have non-default flags\n" | |
1160 | #endif | |
a000b795 | 1161 | #if defined(CONFIG_CMD_GREPENV) |
be29df6a WD |
1162 | #ifdef CONFIG_REGEX |
1163 | "env grep [-e] [-n | -v | -b] string [...] - search environment\n" | |
1164 | #else | |
d87244d5 | 1165 | "env grep [-n | -v | -b] string [...] - search environment\n" |
a000b795 | 1166 | #endif |
be29df6a | 1167 | #endif |
4796bc4b | 1168 | #if defined(CONFIG_CMD_IMPORTENV) |
a000b795 | 1169 | "env import [-d] [-t | -b | -c] addr [size] - import environment\n" |
4796bc4b | 1170 | #endif |
be11235a | 1171 | "env print [-a | name ...] - print environment\n" |
ea882baf WD |
1172 | #if defined(CONFIG_CMD_RUN) |
1173 | "env run var [...] - run commands in an environment variable\n" | |
1174 | #endif | |
d798a9b5 | 1175 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) |
ea882baf | 1176 | "env save - save environment\n" |
d798a9b5 | 1177 | #endif |
088f1b19 KP |
1178 | "env set [-f] name [arg ...]\n"; |
1179 | #endif | |
1180 | ||
1181 | U_BOOT_CMD( | |
1182 | env, CONFIG_SYS_MAXARGS, 1, do_env, | |
1183 | "environment handling commands", env_help_text | |
ea882baf WD |
1184 | ); |
1185 | ||
1186 | /* | |
1187 | * Old command line interface, kept for compatibility | |
1188 | */ | |
8bde7f77 | 1189 | |
246c6922 | 1190 | #if defined(CONFIG_CMD_EDITENV) |
722b061b | 1191 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1192 | editenv, 2, 0, do_env_edit, |
246c6922 PT |
1193 | "edit environment variable", |
1194 | "name\n" | |
722b061b MF |
1195 | " - edit environment variable 'name'", |
1196 | var_complete | |
246c6922 PT |
1197 | ); |
1198 | #endif | |
1199 | ||
722b061b | 1200 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1201 | printenv, CONFIG_SYS_MAXARGS, 1, do_env_print, |
2fb2604d | 1202 | "print environment variables", |
be11235a | 1203 | "[-a]\n - print [all] values of all environment variables\n" |
8bde7f77 | 1204 | "printenv name ...\n" |
722b061b MF |
1205 | " - print value of environment variable 'name'", |
1206 | var_complete | |
8bde7f77 WD |
1207 | ); |
1208 | ||
a000b795 KP |
1209 | #ifdef CONFIG_CMD_GREPENV |
1210 | U_BOOT_CMD_COMPLETE( | |
1211 | grepenv, CONFIG_SYS_MAXARGS, 0, do_env_grep, | |
1212 | "search environment variables", | |
be29df6a WD |
1213 | #ifdef CONFIG_REGEX |
1214 | "[-e] [-n | -v | -b] string ...\n" | |
1215 | #else | |
d87244d5 | 1216 | "[-n | -v | -b] string ...\n" |
be29df6a | 1217 | #endif |
d87244d5 | 1218 | " - list environment name=value pairs matching 'string'\n" |
be29df6a WD |
1219 | #ifdef CONFIG_REGEX |
1220 | " \"-e\": enable regular expressions;\n" | |
1221 | #endif | |
d87244d5 WD |
1222 | " \"-n\": search variable names; \"-v\": search values;\n" |
1223 | " \"-b\": search both names and values (default)", | |
a000b795 KP |
1224 | var_complete |
1225 | ); | |
1226 | #endif | |
1227 | ||
722b061b | 1228 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1229 | setenv, CONFIG_SYS_MAXARGS, 0, do_env_set, |
2fb2604d | 1230 | "set environment variables", |
24ab5a19 JH |
1231 | "[-f] name value ...\n" |
1232 | " - [forcibly] set environment variable 'name' to 'value ...'\n" | |
1233 | "setenv [-f] name\n" | |
1234 | " - [forcibly] delete environment variable 'name'", | |
722b061b | 1235 | var_complete |
8bde7f77 WD |
1236 | ); |
1237 | ||
c76fe474 | 1238 | #if defined(CONFIG_CMD_ASKENV) |
8bde7f77 | 1239 | |
0d498393 | 1240 | U_BOOT_CMD( |
ea882baf | 1241 | askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask, |
2fb2604d | 1242 | "get environment variables from stdin", |
8bde7f77 | 1243 | "name [message] [size]\n" |
7d85591d | 1244 | " - get environment variable 'name' from stdin (max 'size' chars)" |
8bde7f77 | 1245 | ); |
90253178 | 1246 | #endif |
8bde7f77 | 1247 | |
c76fe474 | 1248 | #if defined(CONFIG_CMD_RUN) |
722b061b | 1249 | U_BOOT_CMD_COMPLETE( |
6d0f6bcf | 1250 | run, CONFIG_SYS_MAXARGS, 1, do_run, |
2fb2604d | 1251 | "run commands in an environment variable", |
8bde7f77 | 1252 | "var [...]\n" |
722b061b MF |
1253 | " - run the commands in the environment variable(s) 'var'", |
1254 | var_complete | |
8bde7f77 | 1255 | ); |
90253178 | 1256 | #endif |
7ac2fe2d | 1257 | #endif /* CONFIG_SPL_BUILD */ |