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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 | * | |
3765b3e7 | 10 | * SPDX-License-Identifier: GPL-2.0+ |
a68d3ed0 WD |
11 | */ |
12 | ||
ea882baf | 13 | /* |
a68d3ed0 WD |
14 | * Support for persistent environment data |
15 | * | |
ea882baf WD |
16 | * The "environment" is stored on external storage as a list of '\0' |
17 | * terminated "name=value" strings. The end of the list is marked by | |
18 | * a double '\0'. The environment is preceeded by a 32 bit CRC over | |
19 | * the data part and, in case of redundant environment, a byte of | |
20 | * flags. | |
a68d3ed0 | 21 | * |
ea882baf WD |
22 | * This linearized representation will also be used before |
23 | * relocation, i. e. as long as we don't have a full C runtime | |
24 | * environment. After that, we use a hash table. | |
a68d3ed0 WD |
25 | */ |
26 | ||
27 | #include <common.h> | |
18d66533 | 28 | #include <cli.h> |
a68d3ed0 WD |
29 | #include <command.h> |
30 | #include <environment.h> | |
ea882baf WD |
31 | #include <search.h> |
32 | #include <errno.h> | |
246c6922 | 33 | #include <malloc.h> |
0eb25b61 | 34 | #include <mapmem.h> |
2a3cb020 | 35 | #include <watchdog.h> |
a68d3ed0 WD |
36 | #include <linux/stddef.h> |
37 | #include <asm/byteorder.h> | |
fd37dac9 | 38 | #include <asm/io.h> |
a68d3ed0 | 39 | |
d87080b7 WD |
40 | DECLARE_GLOBAL_DATA_PTR; |
41 | ||
f3c615b8 ML |
42 | #if !defined(CONFIG_ENV_IS_IN_EEPROM) && \ |
43 | !defined(CONFIG_ENV_IS_IN_FLASH) && \ | |
44 | !defined(CONFIG_ENV_IS_IN_DATAFLASH) && \ | |
f3c615b8 | 45 | !defined(CONFIG_ENV_IS_IN_MMC) && \ |
57210c7c | 46 | !defined(CONFIG_ENV_IS_IN_FAT) && \ |
f3c615b8 ML |
47 | !defined(CONFIG_ENV_IS_IN_NAND) && \ |
48 | !defined(CONFIG_ENV_IS_IN_NVRAM) && \ | |
49 | !defined(CONFIG_ENV_IS_IN_ONENAND) && \ | |
50 | !defined(CONFIG_ENV_IS_IN_SPI_FLASH) && \ | |
0a85a9e7 | 51 | !defined(CONFIG_ENV_IS_IN_REMOTE) && \ |
2b74433f | 52 | !defined(CONFIG_ENV_IS_IN_UBI) && \ |
f3c615b8 | 53 | !defined(CONFIG_ENV_IS_NOWHERE) |
75eb82ec | 54 | # error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|ONENAND|\ |
2b74433f | 55 | SPI_FLASH|NVRAM|MMC|FAT|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE |
a68d3ed0 WD |
56 | #endif |
57 | ||
ea882baf WD |
58 | /* |
59 | * Maximum expected input data size for import command | |
60 | */ | |
61 | #define MAX_ENV_SIZE (1 << 20) /* 1 MiB */ | |
a68d3ed0 | 62 | |
da95427c | 63 | /* |
ea882baf | 64 | * This variable is incremented on each do_env_set(), so it can |
da95427c HS |
65 | * be used via get_env_id() as an indication, if the environment |
66 | * has changed or not. So it is possible to reread an environment | |
67 | * variable only if the environment was changed ... done so for | |
68 | * example in NetInitLoop() | |
69 | */ | |
2f70c49e | 70 | static int env_id = 1; |
a68d3ed0 | 71 | |
f3c615b8 | 72 | int get_env_id(void) |
2f70c49e HS |
73 | { |
74 | return env_id; | |
75 | } | |
a68d3ed0 | 76 | |
7ac2fe2d | 77 | #ifndef CONFIG_SPL_BUILD |
4c94f6c5 | 78 | /* |
ea882baf WD |
79 | * Command interface: print one or all environment variables |
80 | * | |
81 | * Returns 0 in case of error, or length of printed string | |
4c94f6c5 | 82 | */ |
be11235a | 83 | static int env_print(char *name, int flag) |
a68d3ed0 | 84 | { |
ea882baf | 85 | char *res = NULL; |
22a4a6c5 | 86 | ssize_t len; |
ea882baf WD |
87 | |
88 | if (name) { /* print a single name */ | |
89 | ENTRY e, *ep; | |
90 | ||
91 | e.key = name; | |
92 | e.data = NULL; | |
be11235a | 93 | hsearch_r(e, FIND, &ep, &env_htab, flag); |
ea882baf WD |
94 | if (ep == NULL) |
95 | return 0; | |
f3c615b8 | 96 | len = printf("%s=%s\n", ep->key, ep->data); |
ea882baf WD |
97 | return len; |
98 | } | |
a68d3ed0 | 99 | |
ea882baf | 100 | /* print whole list */ |
be11235a | 101 | len = hexport_r(&env_htab, '\n', flag, &res, 0, 0, NULL); |
a68d3ed0 | 102 | |
ea882baf WD |
103 | if (len > 0) { |
104 | puts(res); | |
105 | free(res); | |
106 | return len; | |
a68d3ed0 WD |
107 | } |
108 | ||
ea882baf | 109 | /* should never happen */ |
22a4a6c5 | 110 | printf("## Error: cannot export environment\n"); |
ea882baf | 111 | return 0; |
4c94f6c5 | 112 | } |
a68d3ed0 | 113 | |
088f1b19 KP |
114 | static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc, |
115 | char * const argv[]) | |
4c94f6c5 MF |
116 | { |
117 | int i; | |
118 | int rcode = 0; | |
be11235a JH |
119 | int env_flag = H_HIDE_DOT; |
120 | ||
121 | if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') { | |
122 | argc--; | |
123 | argv++; | |
124 | env_flag &= ~H_HIDE_DOT; | |
125 | } | |
a68d3ed0 | 126 | |
4c94f6c5 MF |
127 | if (argc == 1) { |
128 | /* print all env vars */ | |
be11235a | 129 | rcode = env_print(NULL, env_flag); |
ea882baf | 130 | if (!rcode) |
4c94f6c5 MF |
131 | return 1; |
132 | printf("\nEnvironment size: %d/%ld bytes\n", | |
133 | rcode, (ulong)ENV_SIZE); | |
134 | return 0; | |
135 | } | |
a68d3ed0 | 136 | |
4c94f6c5 | 137 | /* print selected env vars */ |
be11235a | 138 | env_flag &= ~H_HIDE_DOT; |
4c94f6c5 | 139 | for (i = 1; i < argc; ++i) { |
be11235a | 140 | int rc = env_print(argv[i], env_flag); |
ea882baf WD |
141 | if (!rc) { |
142 | printf("## Error: \"%s\" not defined\n", argv[i]); | |
4c94f6c5 | 143 | ++rcode; |
a68d3ed0 WD |
144 | } |
145 | } | |
4c94f6c5 | 146 | |
a68d3ed0 WD |
147 | return rcode; |
148 | } | |
149 | ||
a000b795 | 150 | #ifdef CONFIG_CMD_GREPENV |
d09b1787 IG |
151 | static int do_env_grep(cmd_tbl_t *cmdtp, int flag, |
152 | int argc, char * const argv[]) | |
a000b795 | 153 | { |
5a31ea04 | 154 | char *res = NULL; |
be29df6a | 155 | int len, grep_how, grep_what; |
a000b795 KP |
156 | |
157 | if (argc < 2) | |
4c12eeb8 | 158 | return CMD_RET_USAGE; |
a000b795 | 159 | |
be29df6a WD |
160 | grep_how = H_MATCH_SUBSTR; /* default: substring search */ |
161 | grep_what = H_MATCH_BOTH; /* default: grep names and values */ | |
d87244d5 | 162 | |
9a832331 PA |
163 | while (--argc > 0 && **++argv == '-') { |
164 | char *arg = *argv; | |
d87244d5 WD |
165 | while (*++arg) { |
166 | switch (*arg) { | |
be29df6a WD |
167 | #ifdef CONFIG_REGEX |
168 | case 'e': /* use regex matching */ | |
169 | grep_how = H_MATCH_REGEX; | |
170 | break; | |
171 | #endif | |
d87244d5 | 172 | case 'n': /* grep for name */ |
be29df6a | 173 | grep_what = H_MATCH_KEY; |
d87244d5 WD |
174 | break; |
175 | case 'v': /* grep for value */ | |
be29df6a | 176 | grep_what = H_MATCH_DATA; |
d87244d5 WD |
177 | break; |
178 | case 'b': /* grep for both */ | |
be29df6a | 179 | grep_what = H_MATCH_BOTH; |
d87244d5 WD |
180 | break; |
181 | case '-': | |
182 | goto DONE; | |
183 | default: | |
184 | return CMD_RET_USAGE; | |
185 | } | |
186 | } | |
187 | } | |
188 | ||
189 | DONE: | |
5a31ea04 | 190 | len = hexport_r(&env_htab, '\n', |
be29df6a | 191 | flag | grep_what | grep_how, |
5a31ea04 | 192 | &res, 0, argc, argv); |
a000b795 | 193 | |
5a31ea04 WD |
194 | if (len > 0) { |
195 | puts(res); | |
196 | free(res); | |
a000b795 KP |
197 | } |
198 | ||
5a31ea04 WD |
199 | if (len < 2) |
200 | return 1; | |
201 | ||
202 | return 0; | |
a000b795 KP |
203 | } |
204 | #endif | |
7ac2fe2d | 205 | #endif /* CONFIG_SPL_BUILD */ |
a000b795 | 206 | |
c3f65258 GF |
207 | /* |
208 | * Set a new environment variable, | |
209 | * or replace or delete an existing one. | |
2598090b | 210 | */ |
088f1b19 | 211 | static int _do_env_set(int flag, int argc, char * const argv[]) |
c3f65258 GF |
212 | { |
213 | int i, len; | |
214 | char *name, *value, *s; | |
215 | ENTRY e, *ep; | |
24ab5a19 | 216 | int env_flag = H_INTERACTIVE; |
c3f65258 | 217 | |
24ab5a19 JH |
218 | debug("Initial value for argc=%d\n", argc); |
219 | while (argc > 1 && **(argv + 1) == '-') { | |
220 | char *arg = *++argv; | |
221 | ||
222 | --argc; | |
223 | while (*++arg) { | |
224 | switch (*arg) { | |
225 | case 'f': /* force */ | |
226 | env_flag |= H_FORCE; | |
227 | break; | |
228 | default: | |
229 | return CMD_RET_USAGE; | |
230 | } | |
231 | } | |
232 | } | |
233 | debug("Final value for argc=%d\n", argc); | |
c3f65258 GF |
234 | name = argv[1]; |
235 | value = argv[2]; | |
236 | ||
237 | if (strchr(name, '=')) { | |
238 | printf("## Error: illegal character '='" | |
239 | "in variable name \"%s\"\n", name); | |
240 | return 1; | |
241 | } | |
242 | ||
243 | env_id++; | |
c3f65258 | 244 | |
a68d3ed0 | 245 | /* Delete only ? */ |
d09b1787 | 246 | if (argc < 3 || argv[2] == NULL) { |
24ab5a19 | 247 | int rc = hdelete_r(name, &env_htab, env_flag); |
ea882baf | 248 | return !rc; |
a68d3ed0 WD |
249 | } |
250 | ||
251 | /* | |
ea882baf | 252 | * Insert / replace new value |
a68d3ed0 | 253 | */ |
f3c615b8 | 254 | for (i = 2, len = 0; i < argc; ++i) |
a68d3ed0 | 255 | len += strlen(argv[i]) + 1; |
f3c615b8 ML |
256 | |
257 | value = malloc(len); | |
258 | if (value == NULL) { | |
ea882baf | 259 | printf("## Can't malloc %d bytes\n", len); |
a68d3ed0 WD |
260 | return 1; |
261 | } | |
f3c615b8 | 262 | for (i = 2, s = value; i < argc; ++i) { |
ea882baf | 263 | char *v = argv[i]; |
a68d3ed0 | 264 | |
ea882baf | 265 | while ((*s++ = *v++) != '\0') |
a68d3ed0 | 266 | ; |
d09b1787 | 267 | *(s - 1) = ' '; |
ea882baf WD |
268 | } |
269 | if (s != value) | |
270 | *--s = '\0'; | |
271 | ||
d09b1787 IG |
272 | e.key = name; |
273 | e.data = value; | |
24ab5a19 | 274 | hsearch_r(e, ENTER, &ep, &env_htab, env_flag); |
ea882baf WD |
275 | free(value); |
276 | if (!ep) { | |
277 | printf("## Error inserting \"%s\" variable, errno=%d\n", | |
278 | name, errno); | |
279 | return 1; | |
a68d3ed0 | 280 | } |
a68d3ed0 | 281 | |
a68d3ed0 WD |
282 | return 0; |
283 | } | |
284 | ||
84b5e802 | 285 | int setenv(const char *varname, const char *varvalue) |
a68d3ed0 | 286 | { |
84b5e802 WD |
287 | const char * const argv[4] = { "setenv", varname, varvalue, NULL }; |
288 | ||
a7eb1d66 JH |
289 | /* before import into hashtable */ |
290 | if (!(gd->flags & GD_FLG_ENV_READY)) | |
291 | return 1; | |
292 | ||
d09b1787 | 293 | if (varvalue == NULL || varvalue[0] == '\0') |
84b5e802 | 294 | return _do_env_set(0, 2, (char * const *)argv); |
9ffd451a | 295 | else |
84b5e802 | 296 | return _do_env_set(0, 3, (char * const *)argv); |
a68d3ed0 WD |
297 | } |
298 | ||
d67f10ce SG |
299 | /** |
300 | * Set an environment variable to an integer value | |
301 | * | |
9602286d | 302 | * @param varname Environment variable to set |
d67f10ce SG |
303 | * @param value Value to set it to |
304 | * @return 0 if ok, 1 on error | |
305 | */ | |
306 | int setenv_ulong(const char *varname, ulong value) | |
307 | { | |
308 | /* TODO: this should be unsigned */ | |
309 | char *str = simple_itoa(value); | |
310 | ||
311 | return setenv(varname, str); | |
312 | } | |
313 | ||
314 | /** | |
bfc59966 | 315 | * Set an environment variable to an value in hex |
d67f10ce | 316 | * |
9602286d | 317 | * @param varname Environment variable to set |
bfc59966 | 318 | * @param value Value to set it to |
d67f10ce SG |
319 | * @return 0 if ok, 1 on error |
320 | */ | |
bfc59966 | 321 | int setenv_hex(const char *varname, ulong value) |
d67f10ce SG |
322 | { |
323 | char str[17]; | |
324 | ||
bfc59966 | 325 | sprintf(str, "%lx", value); |
d67f10ce SG |
326 | return setenv(varname, str); |
327 | } | |
328 | ||
76b8f79c SG |
329 | ulong getenv_hex(const char *varname, ulong default_val) |
330 | { | |
331 | const char *s; | |
332 | ulong value; | |
333 | char *endp; | |
334 | ||
335 | s = getenv(varname); | |
336 | if (s) | |
337 | value = simple_strtoul(s, &endp, 16); | |
338 | if (!s || endp == s) | |
339 | return default_val; | |
340 | ||
341 | return value; | |
342 | } | |
343 | ||
7ac2fe2d | 344 | #ifndef CONFIG_SPL_BUILD |
088f1b19 | 345 | static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
a68d3ed0 | 346 | { |
47e26b1b | 347 | if (argc < 2) |
4c12eeb8 | 348 | return CMD_RET_USAGE; |
a68d3ed0 | 349 | |
ea882baf | 350 | return _do_env_set(flag, argc, argv); |
a68d3ed0 WD |
351 | } |
352 | ||
ea882baf | 353 | /* |
a68d3ed0 WD |
354 | * Prompt for environment variable |
355 | */ | |
c76fe474 | 356 | #if defined(CONFIG_CMD_ASKENV) |
f3c615b8 | 357 | int do_env_ask(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
a68d3ed0 | 358 | { |
6d0f6bcf | 359 | char message[CONFIG_SYS_CBSIZE]; |
7d85591d | 360 | int i, len, pos, size; |
a68d3ed0 | 361 | char *local_args[4]; |
7d85591d | 362 | char *endptr; |
a68d3ed0 WD |
363 | |
364 | local_args[0] = argv[0]; | |
365 | local_args[1] = argv[1]; | |
366 | local_args[2] = NULL; | |
367 | local_args[3] = NULL; | |
368 | ||
7d85591d WD |
369 | /* |
370 | * Check the syntax: | |
371 | * | |
372 | * env_ask envname [message1 ...] [size] | |
373 | */ | |
374 | if (argc == 1) | |
4c12eeb8 | 375 | return CMD_RET_USAGE; |
a68d3ed0 | 376 | |
7d85591d WD |
377 | /* |
378 | * We test the last argument if it can be converted | |
379 | * into a decimal number. If yes, we assume it's | |
380 | * the size. Otherwise we echo it as part of the | |
381 | * message. | |
382 | */ | |
383 | i = simple_strtoul(argv[argc - 1], &endptr, 10); | |
384 | if (*endptr != '\0') { /* no size */ | |
385 | size = CONFIG_SYS_CBSIZE - 1; | |
386 | } else { /* size given */ | |
387 | size = i; | |
388 | --argc; | |
389 | } | |
a68d3ed0 | 390 | |
7d85591d WD |
391 | if (argc <= 2) { |
392 | sprintf(message, "Please enter '%s': ", argv[1]); | |
393 | } else { | |
394 | /* env_ask envname message1 ... messagen [size] */ | |
395 | for (i = 2, pos = 0; i < argc; i++) { | |
f3c615b8 | 396 | if (pos) |
a68d3ed0 | 397 | message[pos++] = ' '; |
f3c615b8 | 398 | |
d09b1787 | 399 | strcpy(message + pos, argv[i]); |
a68d3ed0 WD |
400 | pos += strlen(argv[i]); |
401 | } | |
7d85591d | 402 | message[pos++] = ' '; |
a68d3ed0 | 403 | message[pos] = '\0'; |
a68d3ed0 WD |
404 | } |
405 | ||
6d0f6bcf JCPV |
406 | if (size >= CONFIG_SYS_CBSIZE) |
407 | size = CONFIG_SYS_CBSIZE - 1; | |
a68d3ed0 WD |
408 | |
409 | if (size <= 0) | |
410 | return 1; | |
411 | ||
412 | /* prompt for input */ | |
e1bf824d | 413 | len = cli_readline(message); |
a68d3ed0 WD |
414 | |
415 | if (size < len) | |
416 | console_buffer[size] = '\0'; | |
417 | ||
418 | len = 2; | |
419 | if (console_buffer[0] != '\0') { | |
420 | local_args[2] = console_buffer; | |
421 | len = 3; | |
422 | } | |
423 | ||
424 | /* Continue calling setenv code */ | |
ea882baf | 425 | return _do_env_set(flag, len, local_args); |
a68d3ed0 | 426 | } |
90253178 | 427 | #endif |
a68d3ed0 | 428 | |
5e2b3e0c JH |
429 | #if defined(CONFIG_CMD_ENV_CALLBACK) |
430 | static int print_static_binding(const char *var_name, const char *callback_name) | |
431 | { | |
432 | printf("\t%-20s %-20s\n", var_name, callback_name); | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
437 | static int print_active_callback(ENTRY *entry) | |
438 | { | |
439 | struct env_clbk_tbl *clbkp; | |
440 | int i; | |
441 | int num_callbacks; | |
442 | ||
443 | if (entry->callback == NULL) | |
444 | return 0; | |
445 | ||
446 | /* look up the callback in the linker-list */ | |
447 | num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk); | |
448 | for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk); | |
449 | i < num_callbacks; | |
450 | i++, clbkp++) { | |
451 | #if defined(CONFIG_NEEDS_MANUAL_RELOC) | |
452 | if (entry->callback == clbkp->callback + gd->reloc_off) | |
453 | #else | |
454 | if (entry->callback == clbkp->callback) | |
455 | #endif | |
456 | break; | |
457 | } | |
458 | ||
459 | if (i == num_callbacks) | |
460 | /* this should probably never happen, but just in case... */ | |
461 | printf("\t%-20s %p\n", entry->key, entry->callback); | |
462 | else | |
463 | printf("\t%-20s %-20s\n", entry->key, clbkp->name); | |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
468 | /* | |
469 | * Print the callbacks available and what they are bound to | |
470 | */ | |
471 | int do_env_callback(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
472 | { | |
473 | struct env_clbk_tbl *clbkp; | |
474 | int i; | |
475 | int num_callbacks; | |
476 | ||
477 | /* Print the available callbacks */ | |
478 | puts("Available callbacks:\n"); | |
479 | puts("\tCallback Name\n"); | |
480 | puts("\t-------------\n"); | |
481 | num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk); | |
482 | for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk); | |
483 | i < num_callbacks; | |
484 | i++, clbkp++) | |
485 | printf("\t%s\n", clbkp->name); | |
486 | puts("\n"); | |
487 | ||
488 | /* Print the static bindings that may exist */ | |
489 | puts("Static callback bindings:\n"); | |
490 | printf("\t%-20s %-20s\n", "Variable Name", "Callback Name"); | |
491 | printf("\t%-20s %-20s\n", "-------------", "-------------"); | |
492 | env_attr_walk(ENV_CALLBACK_LIST_STATIC, print_static_binding); | |
493 | puts("\n"); | |
494 | ||
495 | /* walk through each variable and print the callback if it has one */ | |
496 | puts("Active callback bindings:\n"); | |
497 | printf("\t%-20s %-20s\n", "Variable Name", "Callback Name"); | |
498 | printf("\t%-20s %-20s\n", "-------------", "-------------"); | |
499 | hwalk_r(&env_htab, print_active_callback); | |
500 | return 0; | |
501 | } | |
502 | #endif | |
503 | ||
fffad71b JH |
504 | #if defined(CONFIG_CMD_ENV_FLAGS) |
505 | static int print_static_flags(const char *var_name, const char *flags) | |
506 | { | |
507 | enum env_flags_vartype type = env_flags_parse_vartype(flags); | |
267541f7 | 508 | enum env_flags_varaccess access = env_flags_parse_varaccess(flags); |
fffad71b | 509 | |
267541f7 JH |
510 | printf("\t%-20s %-20s %-20s\n", var_name, |
511 | env_flags_get_vartype_name(type), | |
512 | env_flags_get_varaccess_name(access)); | |
fffad71b JH |
513 | |
514 | return 0; | |
515 | } | |
516 | ||
517 | static int print_active_flags(ENTRY *entry) | |
518 | { | |
519 | enum env_flags_vartype type; | |
267541f7 | 520 | enum env_flags_varaccess access; |
fffad71b JH |
521 | |
522 | if (entry->flags == 0) | |
523 | return 0; | |
524 | ||
525 | type = (enum env_flags_vartype) | |
526 | (entry->flags & ENV_FLAGS_VARTYPE_BIN_MASK); | |
267541f7 JH |
527 | access = env_flags_parse_varaccess_from_binflags(entry->flags); |
528 | printf("\t%-20s %-20s %-20s\n", entry->key, | |
529 | env_flags_get_vartype_name(type), | |
530 | env_flags_get_varaccess_name(access)); | |
fffad71b JH |
531 | |
532 | return 0; | |
533 | } | |
534 | ||
535 | /* | |
536 | * Print the flags available and what variables have flags | |
537 | */ | |
538 | int do_env_flags(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
539 | { | |
540 | /* Print the available variable types */ | |
541 | printf("Available variable type flags (position %d):\n", | |
542 | ENV_FLAGS_VARTYPE_LOC); | |
543 | puts("\tFlag\tVariable Type Name\n"); | |
544 | puts("\t----\t------------------\n"); | |
545 | env_flags_print_vartypes(); | |
546 | puts("\n"); | |
547 | ||
267541f7 JH |
548 | /* Print the available variable access types */ |
549 | printf("Available variable access flags (position %d):\n", | |
550 | ENV_FLAGS_VARACCESS_LOC); | |
551 | puts("\tFlag\tVariable Access Name\n"); | |
552 | puts("\t----\t--------------------\n"); | |
553 | env_flags_print_varaccess(); | |
554 | puts("\n"); | |
555 | ||
fffad71b JH |
556 | /* Print the static flags that may exist */ |
557 | puts("Static flags:\n"); | |
267541f7 JH |
558 | printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type", |
559 | "Variable Access"); | |
560 | printf("\t%-20s %-20s %-20s\n", "-------------", "-------------", | |
561 | "---------------"); | |
fffad71b JH |
562 | env_attr_walk(ENV_FLAGS_LIST_STATIC, print_static_flags); |
563 | puts("\n"); | |
564 | ||
565 | /* walk through each variable and print the flags if non-default */ | |
566 | puts("Active flags:\n"); | |
267541f7 JH |
567 | printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type", |
568 | "Variable Access"); | |
569 | printf("\t%-20s %-20s %-20s\n", "-------------", "-------------", | |
570 | "---------------"); | |
fffad71b JH |
571 | hwalk_r(&env_htab, print_active_flags); |
572 | return 0; | |
573 | } | |
574 | #endif | |
575 | ||
ea882baf | 576 | /* |
246c6922 PT |
577 | * Interactively edit an environment variable |
578 | */ | |
579 | #if defined(CONFIG_CMD_EDITENV) | |
088f1b19 KP |
580 | static int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, |
581 | char * const argv[]) | |
246c6922 PT |
582 | { |
583 | char buffer[CONFIG_SYS_CBSIZE]; | |
584 | char *init_val; | |
246c6922 | 585 | |
47e26b1b | 586 | if (argc < 2) |
4c12eeb8 | 587 | return CMD_RET_USAGE; |
246c6922 PT |
588 | |
589 | /* Set read buffer to initial value or empty sting */ | |
590 | init_val = getenv(argv[1]); | |
591 | if (init_val) | |
7fcd9bbd | 592 | sprintf(buffer, "%s", init_val); |
246c6922 PT |
593 | else |
594 | buffer[0] = '\0'; | |
595 | ||
e1bf824d | 596 | if (cli_readline_into_buffer("edit: ", buffer, 0) < 0) |
18a3cce9 | 597 | return 1; |
246c6922 PT |
598 | |
599 | return setenv(argv[1], buffer); | |
600 | } | |
601 | #endif /* CONFIG_CMD_EDITENV */ | |
7ac2fe2d | 602 | #endif /* CONFIG_SPL_BUILD */ |
246c6922 | 603 | |
ea882baf | 604 | /* |
a68d3ed0 WD |
605 | * Look up variable from environment, |
606 | * return address of storage for that variable, | |
607 | * or NULL if not found | |
608 | */ | |
84b5e802 | 609 | char *getenv(const char *name) |
a68d3ed0 | 610 | { |
d09b1787 | 611 | if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */ |
ea882baf | 612 | ENTRY e, *ep; |
a68d3ed0 | 613 | |
91a76751 | 614 | WATCHDOG_RESET(); |
2a3cb020 | 615 | |
d09b1787 IG |
616 | e.key = name; |
617 | e.data = NULL; | |
c4e0057f | 618 | hsearch_r(e, FIND, &ep, &env_htab, 0); |
91a76751 | 619 | |
f3c615b8 | 620 | return ep ? ep->data : NULL; |
a68d3ed0 WD |
621 | } |
622 | ||
ea882baf | 623 | /* restricted capabilities before import */ |
ea882baf WD |
624 | if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0) |
625 | return (char *)(gd->env_buf); | |
91a76751 | 626 | |
ea882baf | 627 | return NULL; |
a68d3ed0 WD |
628 | } |
629 | ||
ea882baf WD |
630 | /* |
631 | * Look up variable from environment for restricted C runtime env. | |
632 | */ | |
84b5e802 | 633 | int getenv_f(const char *name, char *buf, unsigned len) |
a68d3ed0 WD |
634 | { |
635 | int i, nxt; | |
636 | ||
d09b1787 | 637 | for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) { |
a68d3ed0 WD |
638 | int val, n; |
639 | ||
f3c615b8 ML |
640 | for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) { |
641 | if (nxt >= CONFIG_ENV_SIZE) | |
642 | return -1; | |
a68d3ed0 | 643 | } |
f3c615b8 ML |
644 | |
645 | val = envmatch((uchar *)name, i); | |
646 | if (val < 0) | |
a68d3ed0 | 647 | continue; |
9ed4a958 | 648 | |
a68d3ed0 | 649 | /* found; copy out */ |
f3c615b8 | 650 | for (n = 0; n < len; ++n, ++buf) { |
d09b1787 IG |
651 | *buf = env_get_char(val++); |
652 | if (*buf == '\0') | |
9ed4a958 WD |
653 | return n; |
654 | } | |
655 | ||
656 | if (n) | |
657 | *--buf = '\0'; | |
658 | ||
a02a884b WD |
659 | printf("env_buf [%d bytes] too small for value of \"%s\"\n", |
660 | len, name); | |
9ed4a958 WD |
661 | |
662 | return n; | |
a68d3ed0 | 663 | } |
d09b1787 | 664 | |
f3c615b8 | 665 | return -1; |
a68d3ed0 WD |
666 | } |
667 | ||
4a9b4131 SG |
668 | /** |
669 | * Decode the integer value of an environment variable and return it. | |
670 | * | |
671 | * @param name Name of environemnt variable | |
672 | * @param base Number base to use (normally 10, or 16 for hex) | |
673 | * @param default_val Default value to return if the variable is not | |
674 | * found | |
675 | * @return the decoded value, or default_val if not found | |
676 | */ | |
677 | ulong getenv_ulong(const char *name, int base, ulong default_val) | |
678 | { | |
679 | /* | |
680 | * We can use getenv() here, even before relocation, since the | |
681 | * environment variable value is an integer and thus short. | |
682 | */ | |
683 | const char *str = getenv(name); | |
684 | ||
685 | return str ? simple_strtoul(str, NULL, base) : default_val; | |
686 | } | |
687 | ||
7ac2fe2d | 688 | #ifndef CONFIG_SPL_BUILD |
bdab39d3 | 689 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) |
088f1b19 KP |
690 | static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc, |
691 | char * const argv[]) | |
a68d3ed0 | 692 | { |
f3c615b8 | 693 | printf("Saving Environment to %s...\n", env_name_spec); |
a68d3ed0 | 694 | |
f3c615b8 | 695 | return saveenv() ? 1 : 0; |
a68d3ed0 | 696 | } |
8bde7f77 | 697 | |
ba69dc26 | 698 | U_BOOT_CMD( |
ea882baf | 699 | saveenv, 1, 0, do_env_save, |
2fb2604d | 700 | "save environment variables to persistent storage", |
a89c33db | 701 | "" |
ba69dc26 | 702 | ); |
a68d3ed0 | 703 | #endif |
7ac2fe2d | 704 | #endif /* CONFIG_SPL_BUILD */ |
a68d3ed0 WD |
705 | |
706 | ||
ea882baf | 707 | /* |
a68d3ed0 WD |
708 | * Match a name / name=value pair |
709 | * | |
710 | * s1 is either a simple 'name', or a 'name=value' pair. | |
711 | * i2 is the environment index for a 'name2=value2' pair. | |
d09b1787 | 712 | * If the names match, return the index for the value2, else -1. |
a68d3ed0 | 713 | */ |
f3c615b8 | 714 | int envmatch(uchar *s1, int i2) |
a68d3ed0 | 715 | { |
586197df JH |
716 | if (s1 == NULL) |
717 | return -1; | |
718 | ||
a68d3ed0 WD |
719 | while (*s1 == env_get_char(i2++)) |
720 | if (*s1++ == '=') | |
f3c615b8 | 721 | return i2; |
d09b1787 | 722 | |
a68d3ed0 | 723 | if (*s1 == '\0' && env_get_char(i2-1) == '=') |
f3c615b8 | 724 | return i2; |
d09b1787 | 725 | |
f3c615b8 | 726 | return -1; |
a68d3ed0 | 727 | } |
8bde7f77 | 728 | |
7ac2fe2d | 729 | #ifndef CONFIG_SPL_BUILD |
b64b7c3d | 730 | static int do_env_default(cmd_tbl_t *cmdtp, int __flag, |
d09b1787 | 731 | int argc, char * const argv[]) |
ea882baf | 732 | { |
b64b7c3d | 733 | int all = 0, flag = 0; |
f3c615b8 | 734 | |
b64b7c3d GF |
735 | debug("Initial value for argc=%d\n", argc); |
736 | while (--argc > 0 && **++argv == '-') { | |
737 | char *arg = *argv; | |
738 | ||
739 | while (*++arg) { | |
740 | switch (*arg) { | |
741 | case 'a': /* default all */ | |
742 | all = 1; | |
743 | break; | |
744 | case 'f': /* force */ | |
745 | flag |= H_FORCE; | |
746 | break; | |
747 | default: | |
748 | return cmd_usage(cmdtp); | |
749 | } | |
750 | } | |
751 | } | |
752 | debug("Final value for argc=%d\n", argc); | |
753 | if (all && (argc == 0)) { | |
754 | /* Reset the whole environment */ | |
755 | set_default_env("## Resetting to default environment\n"); | |
756 | return 0; | |
757 | } | |
758 | if (!all && (argc > 0)) { | |
759 | /* Reset individual variables */ | |
760 | set_default_vars(argc, argv); | |
761 | return 0; | |
762 | } | |
763 | ||
764 | return cmd_usage(cmdtp); | |
ea882baf WD |
765 | } |
766 | ||
d09b1787 IG |
767 | static int do_env_delete(cmd_tbl_t *cmdtp, int flag, |
768 | int argc, char * const argv[]) | |
ea882baf | 769 | { |
9d8d661d JH |
770 | int env_flag = H_INTERACTIVE; |
771 | int ret = 0; | |
772 | ||
773 | debug("Initial value for argc=%d\n", argc); | |
774 | while (argc > 1 && **(argv + 1) == '-') { | |
775 | char *arg = *++argv; | |
776 | ||
777 | --argc; | |
778 | while (*++arg) { | |
779 | switch (*arg) { | |
780 | case 'f': /* force */ | |
781 | env_flag |= H_FORCE; | |
782 | break; | |
783 | default: | |
784 | return CMD_RET_USAGE; | |
785 | } | |
786 | } | |
787 | } | |
788 | debug("Final value for argc=%d\n", argc); | |
789 | ||
790 | env_id++; | |
791 | ||
792 | while (--argc > 0) { | |
793 | char *name = *++argv; | |
794 | ||
795 | if (!hdelete_r(name, &env_htab, env_flag)) | |
796 | ret = 1; | |
797 | } | |
798 | ||
799 | return ret; | |
ea882baf WD |
800 | } |
801 | ||
0c79cda0 | 802 | #ifdef CONFIG_CMD_EXPORTENV |
ea882baf | 803 | /* |
37f2fe74 | 804 | * env export [-t | -b | -c] [-s size] addr [var ...] |
ea882baf WD |
805 | * -t: export as text format; if size is given, data will be |
806 | * padded with '\0' bytes; if not, one terminating '\0' | |
807 | * will be added (which is included in the "filesize" | |
808 | * setting so you can for exmple copy this to flash and | |
809 | * keep the termination). | |
810 | * -b: export as binary format (name=value pairs separated by | |
811 | * '\0', list end marked by double "\0\0") | |
812 | * -c: export as checksum protected environment format as | |
813 | * used for example by "saveenv" command | |
37f2fe74 WD |
814 | * -s size: |
815 | * size of output buffer | |
ea882baf | 816 | * addr: memory address where environment gets stored |
37f2fe74 WD |
817 | * var... List of variable names that get included into the |
818 | * export. Without arguments, the whole environment gets | |
819 | * exported. | |
ea882baf WD |
820 | * |
821 | * With "-c" and size is NOT given, then the export command will | |
822 | * format the data as currently used for the persistent storage, | |
823 | * i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and | |
824 | * prepend a valid CRC32 checksum and, in case of resundant | |
825 | * environment, a "current" redundancy flag. If size is given, this | |
826 | * value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32 | |
827 | * checksum and redundancy flag will be inserted. | |
828 | * | |
829 | * With "-b" and "-t", always only the real data (including a | |
830 | * terminating '\0' byte) will be written; here the optional size | |
831 | * argument will be used to make sure not to overflow the user | |
832 | * provided buffer; the command will abort if the size is not | |
833 | * sufficient. Any remainign space will be '\0' padded. | |
834 | * | |
835 | * On successful return, the variable "filesize" will be set. | |
836 | * Note that filesize includes the trailing/terminating '\0' byte(s). | |
837 | * | |
838 | * Usage szenario: create a text snapshot/backup of the current settings: | |
839 | * | |
840 | * => env export -t 100000 | |
841 | * => era ${backup_addr} +${filesize} | |
842 | * => cp.b 100000 ${backup_addr} ${filesize} | |
843 | * | |
844 | * Re-import this snapshot, deleting all other settings: | |
845 | * | |
846 | * => env import -d -t ${backup_addr} | |
847 | */ | |
d09b1787 IG |
848 | static int do_env_export(cmd_tbl_t *cmdtp, int flag, |
849 | int argc, char * const argv[]) | |
ea882baf WD |
850 | { |
851 | char buf[32]; | |
fd37dac9 SG |
852 | ulong addr; |
853 | char *ptr, *cmd, *res; | |
37f2fe74 | 854 | size_t size = 0; |
ea882baf WD |
855 | ssize_t len; |
856 | env_t *envp; | |
857 | char sep = '\n'; | |
858 | int chk = 0; | |
859 | int fmt = 0; | |
860 | ||
861 | cmd = *argv; | |
862 | ||
863 | while (--argc > 0 && **++argv == '-') { | |
864 | char *arg = *argv; | |
865 | while (*++arg) { | |
866 | switch (*arg) { | |
867 | case 'b': /* raw binary format */ | |
868 | if (fmt++) | |
869 | goto sep_err; | |
870 | sep = '\0'; | |
871 | break; | |
872 | case 'c': /* external checksum format */ | |
873 | if (fmt++) | |
874 | goto sep_err; | |
875 | sep = '\0'; | |
876 | chk = 1; | |
877 | break; | |
37f2fe74 WD |
878 | case 's': /* size given */ |
879 | if (--argc <= 0) | |
880 | return cmd_usage(cmdtp); | |
881 | size = simple_strtoul(*++argv, NULL, 16); | |
882 | goto NXTARG; | |
ea882baf WD |
883 | case 't': /* text format */ |
884 | if (fmt++) | |
885 | goto sep_err; | |
886 | sep = '\n'; | |
887 | break; | |
888 | default: | |
4c12eeb8 | 889 | return CMD_RET_USAGE; |
ea882baf WD |
890 | } |
891 | } | |
37f2fe74 | 892 | NXTARG: ; |
ea882baf WD |
893 | } |
894 | ||
f3c615b8 | 895 | if (argc < 1) |
4c12eeb8 | 896 | return CMD_RET_USAGE; |
8bde7f77 | 897 | |
fd37dac9 SG |
898 | addr = simple_strtoul(argv[0], NULL, 16); |
899 | ptr = map_sysmem(addr, size); | |
ea882baf | 900 | |
37f2fe74 | 901 | if (size) |
fd37dac9 | 902 | memset(ptr, '\0', size); |
37f2fe74 WD |
903 | |
904 | argc--; | |
905 | argv++; | |
ea882baf WD |
906 | |
907 | if (sep) { /* export as text file */ | |
ea009d47 WD |
908 | len = hexport_r(&env_htab, sep, |
909 | H_MATCH_KEY | H_MATCH_IDENT, | |
fd37dac9 | 910 | &ptr, size, argc, argv); |
ea882baf | 911 | if (len < 0) { |
d09b1787 | 912 | error("Cannot export environment: errno = %d\n", errno); |
ea882baf WD |
913 | return 1; |
914 | } | |
8c3aff52 | 915 | sprintf(buf, "%zX", (size_t)len); |
ea882baf WD |
916 | setenv("filesize", buf); |
917 | ||
918 | return 0; | |
919 | } | |
920 | ||
fd37dac9 | 921 | envp = (env_t *)ptr; |
ea882baf WD |
922 | |
923 | if (chk) /* export as checksum protected block */ | |
924 | res = (char *)envp->data; | |
925 | else /* export as raw binary data */ | |
fd37dac9 | 926 | res = ptr; |
ea882baf | 927 | |
ea009d47 WD |
928 | len = hexport_r(&env_htab, '\0', |
929 | H_MATCH_KEY | H_MATCH_IDENT, | |
930 | &res, ENV_SIZE, argc, argv); | |
ea882baf | 931 | if (len < 0) { |
d09b1787 | 932 | error("Cannot export environment: errno = %d\n", errno); |
ea882baf WD |
933 | return 1; |
934 | } | |
935 | ||
936 | if (chk) { | |
d09b1787 | 937 | envp->crc = crc32(0, envp->data, ENV_SIZE); |
ea882baf WD |
938 | #ifdef CONFIG_ENV_ADDR_REDUND |
939 | envp->flags = ACTIVE_FLAG; | |
940 | #endif | |
941 | } | |
41ef372c | 942 | setenv_hex("filesize", len + offsetof(env_t, data)); |
ea882baf WD |
943 | |
944 | return 0; | |
945 | ||
946 | sep_err: | |
d09b1787 | 947 | printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", cmd); |
ea882baf WD |
948 | return 1; |
949 | } | |
0c79cda0 | 950 | #endif |
ea882baf | 951 | |
0c79cda0 | 952 | #ifdef CONFIG_CMD_IMPORTENV |
ea882baf | 953 | /* |
ecd1446f | 954 | * env import [-d] [-t [-r] | -b | -c] addr [size] |
ea882baf WD |
955 | * -d: delete existing environment before importing; |
956 | * otherwise overwrite / append to existion definitions | |
957 | * -t: assume text format; either "size" must be given or the | |
958 | * text data must be '\0' terminated | |
ecd1446f AH |
959 | * -r: handle CRLF like LF, that means exported variables with |
960 | * a content which ends with \r won't get imported. Used | |
961 | * to import text files created with editors which are using CRLF | |
962 | * for line endings. Only effective in addition to -t. | |
ea882baf WD |
963 | * -b: assume binary format ('\0' separated, "\0\0" terminated) |
964 | * -c: assume checksum protected environment format | |
965 | * addr: memory address to read from | |
966 | * size: length of input data; if missing, proper '\0' | |
967 | * termination is mandatory | |
968 | */ | |
d09b1787 IG |
969 | static int do_env_import(cmd_tbl_t *cmdtp, int flag, |
970 | int argc, char * const argv[]) | |
ea882baf | 971 | { |
fd37dac9 SG |
972 | ulong addr; |
973 | char *cmd, *ptr; | |
ea882baf WD |
974 | char sep = '\n'; |
975 | int chk = 0; | |
976 | int fmt = 0; | |
977 | int del = 0; | |
ecd1446f | 978 | int crlf_is_lf = 0; |
ea882baf WD |
979 | size_t size; |
980 | ||
981 | cmd = *argv; | |
982 | ||
983 | while (--argc > 0 && **++argv == '-') { | |
984 | char *arg = *argv; | |
985 | while (*++arg) { | |
986 | switch (*arg) { | |
987 | case 'b': /* raw binary format */ | |
988 | if (fmt++) | |
989 | goto sep_err; | |
990 | sep = '\0'; | |
991 | break; | |
992 | case 'c': /* external checksum format */ | |
993 | if (fmt++) | |
994 | goto sep_err; | |
995 | sep = '\0'; | |
996 | chk = 1; | |
997 | break; | |
998 | case 't': /* text format */ | |
999 | if (fmt++) | |
1000 | goto sep_err; | |
1001 | sep = '\n'; | |
1002 | break; | |
ecd1446f AH |
1003 | case 'r': /* handle CRLF like LF */ |
1004 | crlf_is_lf = 1; | |
1005 | break; | |
ea882baf WD |
1006 | case 'd': |
1007 | del = 1; | |
1008 | break; | |
1009 | default: | |
4c12eeb8 | 1010 | return CMD_RET_USAGE; |
ea882baf WD |
1011 | } |
1012 | } | |
1013 | } | |
1014 | ||
f3c615b8 | 1015 | if (argc < 1) |
4c12eeb8 | 1016 | return CMD_RET_USAGE; |
ea882baf WD |
1017 | |
1018 | if (!fmt) | |
1019 | printf("## Warning: defaulting to text format\n"); | |
1020 | ||
ecd1446f AH |
1021 | if (sep != '\n' && crlf_is_lf ) |
1022 | crlf_is_lf = 0; | |
1023 | ||
fd37dac9 SG |
1024 | addr = simple_strtoul(argv[0], NULL, 16); |
1025 | ptr = map_sysmem(addr, 0); | |
ea882baf WD |
1026 | |
1027 | if (argc == 2) { | |
1028 | size = simple_strtoul(argv[1], NULL, 16); | |
3775dcd9 TR |
1029 | } else if (argc == 1 && chk) { |
1030 | puts("## Error: external checksum format must pass size\n"); | |
1031 | return CMD_RET_FAILURE; | |
ea882baf | 1032 | } else { |
fd37dac9 | 1033 | char *s = ptr; |
ea882baf WD |
1034 | |
1035 | size = 0; | |
1036 | ||
1037 | while (size < MAX_ENV_SIZE) { | |
1038 | if ((*s == sep) && (*(s+1) == '\0')) | |
1039 | break; | |
1040 | ++s; | |
1041 | ++size; | |
1042 | } | |
1043 | if (size == MAX_ENV_SIZE) { | |
1044 | printf("## Warning: Input data exceeds %d bytes" | |
1045 | " - truncated\n", MAX_ENV_SIZE); | |
1046 | } | |
d3f80c77 | 1047 | size += 2; |
79afc88d | 1048 | printf("## Info: input data size = %zu = 0x%zX\n", size, size); |
ea882baf WD |
1049 | } |
1050 | ||
1051 | if (chk) { | |
1052 | uint32_t crc; | |
fd37dac9 | 1053 | env_t *ep = (env_t *)ptr; |
ea882baf WD |
1054 | |
1055 | size -= offsetof(env_t, data); | |
1056 | memcpy(&crc, &ep->crc, sizeof(crc)); | |
1057 | ||
1058 | if (crc32(0, ep->data, size) != crc) { | |
1059 | puts("## Error: bad CRC, import failed\n"); | |
1060 | return 1; | |
1061 | } | |
fd37dac9 | 1062 | ptr = (char *)ep->data; |
ea882baf WD |
1063 | } |
1064 | ||
ecd1446f AH |
1065 | if (himport_r(&env_htab, ptr, size, sep, del ? 0 : H_NOCLEAR, |
1066 | crlf_is_lf, 0, NULL) == 0) { | |
ea882baf WD |
1067 | error("Environment import failed: errno = %d\n", errno); |
1068 | return 1; | |
1069 | } | |
1070 | gd->flags |= GD_FLG_ENV_READY; | |
1071 | ||
1072 | return 0; | |
1073 | ||
1074 | sep_err: | |
1075 | printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", | |
1076 | cmd); | |
1077 | return 1; | |
1078 | } | |
0c79cda0 | 1079 | #endif |
ea882baf | 1080 | |
88733e2c AR |
1081 | #if defined(CONFIG_CMD_ENV_EXISTS) |
1082 | static int do_env_exists(cmd_tbl_t *cmdtp, int flag, int argc, | |
1083 | char * const argv[]) | |
1084 | { | |
1085 | ENTRY e, *ep; | |
1086 | ||
1087 | if (argc < 2) | |
1088 | return CMD_RET_USAGE; | |
1089 | ||
1090 | e.key = argv[1]; | |
1091 | e.data = NULL; | |
1092 | hsearch_r(e, FIND, &ep, &env_htab, 0); | |
1093 | ||
1094 | return (ep == NULL) ? 1 : 0; | |
1095 | } | |
1096 | #endif | |
1097 | ||
ea882baf WD |
1098 | /* |
1099 | * New command line interface: "env" command with subcommands | |
1100 | */ | |
1101 | static cmd_tbl_t cmd_env_sub[] = { | |
1102 | #if defined(CONFIG_CMD_ASKENV) | |
1103 | U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""), | |
1104 | #endif | |
1105 | U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""), | |
9d8d661d | 1106 | U_BOOT_CMD_MKENT(delete, CONFIG_SYS_MAXARGS, 0, do_env_delete, "", ""), |
ea882baf WD |
1107 | #if defined(CONFIG_CMD_EDITENV) |
1108 | U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""), | |
1109 | #endif | |
5e2b3e0c JH |
1110 | #if defined(CONFIG_CMD_ENV_CALLBACK) |
1111 | U_BOOT_CMD_MKENT(callbacks, 1, 0, do_env_callback, "", ""), | |
1112 | #endif | |
fffad71b JH |
1113 | #if defined(CONFIG_CMD_ENV_FLAGS) |
1114 | U_BOOT_CMD_MKENT(flags, 1, 0, do_env_flags, "", ""), | |
1115 | #endif | |
0c79cda0 | 1116 | #if defined(CONFIG_CMD_EXPORTENV) |
ea882baf | 1117 | U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""), |
0c79cda0 | 1118 | #endif |
a000b795 KP |
1119 | #if defined(CONFIG_CMD_GREPENV) |
1120 | U_BOOT_CMD_MKENT(grep, CONFIG_SYS_MAXARGS, 1, do_env_grep, "", ""), | |
1121 | #endif | |
0c79cda0 | 1122 | #if defined(CONFIG_CMD_IMPORTENV) |
ea882baf | 1123 | U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""), |
0c79cda0 | 1124 | #endif |
ea882baf WD |
1125 | U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""), |
1126 | #if defined(CONFIG_CMD_RUN) | |
1127 | U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""), | |
1128 | #endif | |
1129 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) | |
1130 | U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""), | |
1131 | #endif | |
1132 | U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""), | |
88733e2c AR |
1133 | #if defined(CONFIG_CMD_ENV_EXISTS) |
1134 | U_BOOT_CMD_MKENT(exists, 2, 0, do_env_exists, "", ""), | |
1135 | #endif | |
ea882baf WD |
1136 | }; |
1137 | ||
2e5167cc | 1138 | #if defined(CONFIG_NEEDS_MANUAL_RELOC) |
60f7da1f HS |
1139 | void env_reloc(void) |
1140 | { | |
1141 | fixup_cmdtable(cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); | |
1142 | } | |
1143 | #endif | |
1144 | ||
f3c615b8 | 1145 | static int do_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
ea882baf WD |
1146 | { |
1147 | cmd_tbl_t *cp; | |
1148 | ||
5904da02 | 1149 | if (argc < 2) |
4c12eeb8 | 1150 | return CMD_RET_USAGE; |
5904da02 | 1151 | |
ea882baf WD |
1152 | /* drop initial "env" arg */ |
1153 | argc--; | |
1154 | argv++; | |
1155 | ||
1156 | cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); | |
1157 | ||
1158 | if (cp) | |
1159 | return cp->cmd(cmdtp, flag, argc, argv); | |
1160 | ||
4c12eeb8 | 1161 | return CMD_RET_USAGE; |
ea882baf WD |
1162 | } |
1163 | ||
088f1b19 KP |
1164 | #ifdef CONFIG_SYS_LONGHELP |
1165 | static char env_help_text[] = | |
ea882baf WD |
1166 | #if defined(CONFIG_CMD_ASKENV) |
1167 | "ask name [message] [size] - ask for environment variable\nenv " | |
5e2b3e0c JH |
1168 | #endif |
1169 | #if defined(CONFIG_CMD_ENV_CALLBACK) | |
1170 | "callbacks - print callbacks and their associated variables\nenv " | |
ea882baf | 1171 | #endif |
b64b7c3d GF |
1172 | "default [-f] -a - [forcibly] reset default environment\n" |
1173 | "env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n" | |
9d8d661d | 1174 | "env delete [-f] var [...] - [forcibly] delete variable(s)\n" |
ea882baf WD |
1175 | #if defined(CONFIG_CMD_EDITENV) |
1176 | "env edit name - edit environment variable\n" | |
1177 | #endif | |
88733e2c AR |
1178 | #if defined(CONFIG_CMD_ENV_EXISTS) |
1179 | "env exists name - tests for existence of variable\n" | |
1180 | #endif | |
4796bc4b | 1181 | #if defined(CONFIG_CMD_EXPORTENV) |
37f2fe74 | 1182 | "env export [-t | -b | -c] [-s size] addr [var ...] - export environment\n" |
4796bc4b | 1183 | #endif |
fffad71b JH |
1184 | #if defined(CONFIG_CMD_ENV_FLAGS) |
1185 | "env flags - print variables that have non-default flags\n" | |
1186 | #endif | |
a000b795 | 1187 | #if defined(CONFIG_CMD_GREPENV) |
be29df6a WD |
1188 | #ifdef CONFIG_REGEX |
1189 | "env grep [-e] [-n | -v | -b] string [...] - search environment\n" | |
1190 | #else | |
d87244d5 | 1191 | "env grep [-n | -v | -b] string [...] - search environment\n" |
a000b795 | 1192 | #endif |
be29df6a | 1193 | #endif |
4796bc4b | 1194 | #if defined(CONFIG_CMD_IMPORTENV) |
ecd1446f | 1195 | "env import [-d] [-t [-r] | -b | -c] addr [size] - import environment\n" |
4796bc4b | 1196 | #endif |
be11235a | 1197 | "env print [-a | name ...] - print environment\n" |
ea882baf WD |
1198 | #if defined(CONFIG_CMD_RUN) |
1199 | "env run var [...] - run commands in an environment variable\n" | |
1200 | #endif | |
d798a9b5 | 1201 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) |
ea882baf | 1202 | "env save - save environment\n" |
d798a9b5 | 1203 | #endif |
088f1b19 KP |
1204 | "env set [-f] name [arg ...]\n"; |
1205 | #endif | |
1206 | ||
1207 | U_BOOT_CMD( | |
1208 | env, CONFIG_SYS_MAXARGS, 1, do_env, | |
1209 | "environment handling commands", env_help_text | |
ea882baf WD |
1210 | ); |
1211 | ||
1212 | /* | |
1213 | * Old command line interface, kept for compatibility | |
1214 | */ | |
8bde7f77 | 1215 | |
246c6922 | 1216 | #if defined(CONFIG_CMD_EDITENV) |
722b061b | 1217 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1218 | editenv, 2, 0, do_env_edit, |
246c6922 PT |
1219 | "edit environment variable", |
1220 | "name\n" | |
722b061b MF |
1221 | " - edit environment variable 'name'", |
1222 | var_complete | |
246c6922 PT |
1223 | ); |
1224 | #endif | |
1225 | ||
722b061b | 1226 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1227 | printenv, CONFIG_SYS_MAXARGS, 1, do_env_print, |
2fb2604d | 1228 | "print environment variables", |
be11235a | 1229 | "[-a]\n - print [all] values of all environment variables\n" |
8bde7f77 | 1230 | "printenv name ...\n" |
722b061b MF |
1231 | " - print value of environment variable 'name'", |
1232 | var_complete | |
8bde7f77 WD |
1233 | ); |
1234 | ||
a000b795 KP |
1235 | #ifdef CONFIG_CMD_GREPENV |
1236 | U_BOOT_CMD_COMPLETE( | |
1237 | grepenv, CONFIG_SYS_MAXARGS, 0, do_env_grep, | |
1238 | "search environment variables", | |
be29df6a WD |
1239 | #ifdef CONFIG_REGEX |
1240 | "[-e] [-n | -v | -b] string ...\n" | |
1241 | #else | |
d87244d5 | 1242 | "[-n | -v | -b] string ...\n" |
be29df6a | 1243 | #endif |
d87244d5 | 1244 | " - list environment name=value pairs matching 'string'\n" |
be29df6a WD |
1245 | #ifdef CONFIG_REGEX |
1246 | " \"-e\": enable regular expressions;\n" | |
1247 | #endif | |
d87244d5 WD |
1248 | " \"-n\": search variable names; \"-v\": search values;\n" |
1249 | " \"-b\": search both names and values (default)", | |
a000b795 KP |
1250 | var_complete |
1251 | ); | |
1252 | #endif | |
1253 | ||
722b061b | 1254 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1255 | setenv, CONFIG_SYS_MAXARGS, 0, do_env_set, |
2fb2604d | 1256 | "set environment variables", |
24ab5a19 JH |
1257 | "[-f] name value ...\n" |
1258 | " - [forcibly] set environment variable 'name' to 'value ...'\n" | |
1259 | "setenv [-f] name\n" | |
1260 | " - [forcibly] delete environment variable 'name'", | |
722b061b | 1261 | var_complete |
8bde7f77 WD |
1262 | ); |
1263 | ||
c76fe474 | 1264 | #if defined(CONFIG_CMD_ASKENV) |
8bde7f77 | 1265 | |
0d498393 | 1266 | U_BOOT_CMD( |
ea882baf | 1267 | askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask, |
2fb2604d | 1268 | "get environment variables from stdin", |
8bde7f77 | 1269 | "name [message] [size]\n" |
7d85591d | 1270 | " - get environment variable 'name' from stdin (max 'size' chars)" |
8bde7f77 | 1271 | ); |
90253178 | 1272 | #endif |
8bde7f77 | 1273 | |
c76fe474 | 1274 | #if defined(CONFIG_CMD_RUN) |
722b061b | 1275 | U_BOOT_CMD_COMPLETE( |
6d0f6bcf | 1276 | run, CONFIG_SYS_MAXARGS, 1, do_run, |
2fb2604d | 1277 | "run commands in an environment variable", |
8bde7f77 | 1278 | "var [...]\n" |
722b061b MF |
1279 | " - run the commands in the environment variable(s) 'var'", |
1280 | var_complete | |
8bde7f77 | 1281 | ); |
90253178 | 1282 | #endif |
7ac2fe2d | 1283 | #endif /* CONFIG_SPL_BUILD */ |