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