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Commit | Line | Data |
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a68d3ed0 | 1 | /* |
ea009d47 | 2 | * (C) Copyright 2000-2013 |
a68d3ed0 WD |
3 | * Wolfgang Denk, DENX Software Engineering, [email protected]. |
4 | * | |
5 | * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
6 | * Andreas Heppel <[email protected]> | |
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 | */ |
94b467b1 | 211 | static int _do_env_set(int flag, int argc, char * const argv[], int env_flag) |
c3f65258 GF |
212 | { |
213 | int i, len; | |
214 | char *name, *value, *s; | |
215 | ENTRY e, *ep; | |
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') |
94b467b1 | 293 | return _do_env_set(0, 2, (char * const *)argv, H_PROGRAMMATIC); |
9ffd451a | 294 | else |
94b467b1 | 295 | return _do_env_set(0, 3, (char * const *)argv, H_PROGRAMMATIC); |
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 | |
94b467b1 | 349 | return _do_env_set(flag, argc, argv, H_INTERACTIVE); |
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 */ | |
94b467b1 | 424 | return _do_env_set(flag, len, local_args, H_INTERACTIVE); |
a68d3ed0 | 425 | } |
90253178 | 426 | #endif |
a68d3ed0 | 427 | |
5e2b3e0c | 428 | #if defined(CONFIG_CMD_ENV_CALLBACK) |
cca98fd6 JH |
429 | static int print_static_binding(const char *var_name, const char *callback_name, |
430 | void *priv) | |
5e2b3e0c JH |
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", "-------------", "-------------"); | |
cca98fd6 | 492 | env_attr_walk(ENV_CALLBACK_LIST_STATIC, print_static_binding, NULL); |
5e2b3e0c JH |
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 | 504 | #if defined(CONFIG_CMD_ENV_FLAGS) |
cca98fd6 JH |
505 | static int print_static_flags(const char *var_name, const char *flags, |
506 | void *priv) | |
fffad71b JH |
507 | { |
508 | enum env_flags_vartype type = env_flags_parse_vartype(flags); | |
267541f7 | 509 | enum env_flags_varaccess access = env_flags_parse_varaccess(flags); |
fffad71b | 510 | |
267541f7 JH |
511 | printf("\t%-20s %-20s %-20s\n", var_name, |
512 | env_flags_get_vartype_name(type), | |
513 | env_flags_get_varaccess_name(access)); | |
fffad71b JH |
514 | |
515 | return 0; | |
516 | } | |
517 | ||
518 | static int print_active_flags(ENTRY *entry) | |
519 | { | |
520 | enum env_flags_vartype type; | |
267541f7 | 521 | enum env_flags_varaccess access; |
fffad71b JH |
522 | |
523 | if (entry->flags == 0) | |
524 | return 0; | |
525 | ||
526 | type = (enum env_flags_vartype) | |
527 | (entry->flags & ENV_FLAGS_VARTYPE_BIN_MASK); | |
267541f7 JH |
528 | access = env_flags_parse_varaccess_from_binflags(entry->flags); |
529 | printf("\t%-20s %-20s %-20s\n", entry->key, | |
530 | env_flags_get_vartype_name(type), | |
531 | env_flags_get_varaccess_name(access)); | |
fffad71b JH |
532 | |
533 | return 0; | |
534 | } | |
535 | ||
536 | /* | |
537 | * Print the flags available and what variables have flags | |
538 | */ | |
539 | int do_env_flags(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
540 | { | |
541 | /* Print the available variable types */ | |
542 | printf("Available variable type flags (position %d):\n", | |
543 | ENV_FLAGS_VARTYPE_LOC); | |
544 | puts("\tFlag\tVariable Type Name\n"); | |
545 | puts("\t----\t------------------\n"); | |
546 | env_flags_print_vartypes(); | |
547 | puts("\n"); | |
548 | ||
267541f7 JH |
549 | /* Print the available variable access types */ |
550 | printf("Available variable access flags (position %d):\n", | |
551 | ENV_FLAGS_VARACCESS_LOC); | |
552 | puts("\tFlag\tVariable Access Name\n"); | |
553 | puts("\t----\t--------------------\n"); | |
554 | env_flags_print_varaccess(); | |
555 | puts("\n"); | |
556 | ||
fffad71b JH |
557 | /* Print the static flags that may exist */ |
558 | puts("Static flags:\n"); | |
267541f7 JH |
559 | printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type", |
560 | "Variable Access"); | |
561 | printf("\t%-20s %-20s %-20s\n", "-------------", "-------------", | |
562 | "---------------"); | |
cca98fd6 | 563 | env_attr_walk(ENV_FLAGS_LIST_STATIC, print_static_flags, NULL); |
fffad71b JH |
564 | puts("\n"); |
565 | ||
566 | /* walk through each variable and print the flags if non-default */ | |
567 | puts("Active flags:\n"); | |
267541f7 JH |
568 | printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type", |
569 | "Variable Access"); | |
570 | printf("\t%-20s %-20s %-20s\n", "-------------", "-------------", | |
571 | "---------------"); | |
fffad71b JH |
572 | hwalk_r(&env_htab, print_active_flags); |
573 | return 0; | |
574 | } | |
575 | #endif | |
576 | ||
ea882baf | 577 | /* |
246c6922 PT |
578 | * Interactively edit an environment variable |
579 | */ | |
580 | #if defined(CONFIG_CMD_EDITENV) | |
088f1b19 KP |
581 | static int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, |
582 | char * const argv[]) | |
246c6922 PT |
583 | { |
584 | char buffer[CONFIG_SYS_CBSIZE]; | |
585 | char *init_val; | |
246c6922 | 586 | |
47e26b1b | 587 | if (argc < 2) |
4c12eeb8 | 588 | return CMD_RET_USAGE; |
246c6922 | 589 | |
94b467b1 JH |
590 | /* before import into hashtable */ |
591 | if (!(gd->flags & GD_FLG_ENV_READY)) | |
592 | return 1; | |
593 | ||
246c6922 PT |
594 | /* Set read buffer to initial value or empty sting */ |
595 | init_val = getenv(argv[1]); | |
596 | if (init_val) | |
7fcd9bbd | 597 | sprintf(buffer, "%s", init_val); |
246c6922 PT |
598 | else |
599 | buffer[0] = '\0'; | |
600 | ||
e1bf824d | 601 | if (cli_readline_into_buffer("edit: ", buffer, 0) < 0) |
18a3cce9 | 602 | return 1; |
246c6922 | 603 | |
94b467b1 JH |
604 | if (buffer[0] == '\0') { |
605 | const char * const _argv[3] = { "setenv", argv[1], NULL }; | |
606 | ||
607 | return _do_env_set(0, 2, (char * const *)_argv, H_INTERACTIVE); | |
608 | } else { | |
609 | const char * const _argv[4] = { "setenv", argv[1], buffer, | |
610 | NULL }; | |
611 | ||
612 | return _do_env_set(0, 3, (char * const *)_argv, H_INTERACTIVE); | |
613 | } | |
246c6922 PT |
614 | } |
615 | #endif /* CONFIG_CMD_EDITENV */ | |
7ac2fe2d | 616 | #endif /* CONFIG_SPL_BUILD */ |
246c6922 | 617 | |
ea882baf | 618 | /* |
a68d3ed0 WD |
619 | * Look up variable from environment, |
620 | * return address of storage for that variable, | |
621 | * or NULL if not found | |
622 | */ | |
84b5e802 | 623 | char *getenv(const char *name) |
a68d3ed0 | 624 | { |
d09b1787 | 625 | if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */ |
ea882baf | 626 | ENTRY e, *ep; |
a68d3ed0 | 627 | |
91a76751 | 628 | WATCHDOG_RESET(); |
2a3cb020 | 629 | |
d09b1787 IG |
630 | e.key = name; |
631 | e.data = NULL; | |
c4e0057f | 632 | hsearch_r(e, FIND, &ep, &env_htab, 0); |
91a76751 | 633 | |
f3c615b8 | 634 | return ep ? ep->data : NULL; |
a68d3ed0 WD |
635 | } |
636 | ||
ea882baf | 637 | /* restricted capabilities before import */ |
ea882baf WD |
638 | if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0) |
639 | return (char *)(gd->env_buf); | |
91a76751 | 640 | |
ea882baf | 641 | return NULL; |
a68d3ed0 WD |
642 | } |
643 | ||
ea882baf WD |
644 | /* |
645 | * Look up variable from environment for restricted C runtime env. | |
646 | */ | |
84b5e802 | 647 | int getenv_f(const char *name, char *buf, unsigned len) |
a68d3ed0 WD |
648 | { |
649 | int i, nxt; | |
650 | ||
d09b1787 | 651 | for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) { |
a68d3ed0 WD |
652 | int val, n; |
653 | ||
f3c615b8 ML |
654 | for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) { |
655 | if (nxt >= CONFIG_ENV_SIZE) | |
656 | return -1; | |
a68d3ed0 | 657 | } |
f3c615b8 ML |
658 | |
659 | val = envmatch((uchar *)name, i); | |
660 | if (val < 0) | |
a68d3ed0 | 661 | continue; |
9ed4a958 | 662 | |
a68d3ed0 | 663 | /* found; copy out */ |
f3c615b8 | 664 | for (n = 0; n < len; ++n, ++buf) { |
d09b1787 IG |
665 | *buf = env_get_char(val++); |
666 | if (*buf == '\0') | |
9ed4a958 WD |
667 | return n; |
668 | } | |
669 | ||
670 | if (n) | |
671 | *--buf = '\0'; | |
672 | ||
a02a884b WD |
673 | printf("env_buf [%d bytes] too small for value of \"%s\"\n", |
674 | len, name); | |
9ed4a958 WD |
675 | |
676 | return n; | |
a68d3ed0 | 677 | } |
d09b1787 | 678 | |
f3c615b8 | 679 | return -1; |
a68d3ed0 WD |
680 | } |
681 | ||
4a9b4131 SG |
682 | /** |
683 | * Decode the integer value of an environment variable and return it. | |
684 | * | |
685 | * @param name Name of environemnt variable | |
686 | * @param base Number base to use (normally 10, or 16 for hex) | |
687 | * @param default_val Default value to return if the variable is not | |
688 | * found | |
689 | * @return the decoded value, or default_val if not found | |
690 | */ | |
691 | ulong getenv_ulong(const char *name, int base, ulong default_val) | |
692 | { | |
693 | /* | |
694 | * We can use getenv() here, even before relocation, since the | |
695 | * environment variable value is an integer and thus short. | |
696 | */ | |
697 | const char *str = getenv(name); | |
698 | ||
699 | return str ? simple_strtoul(str, NULL, base) : default_val; | |
700 | } | |
701 | ||
7ac2fe2d | 702 | #ifndef CONFIG_SPL_BUILD |
bdab39d3 | 703 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) |
088f1b19 KP |
704 | static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc, |
705 | char * const argv[]) | |
a68d3ed0 | 706 | { |
f3c615b8 | 707 | printf("Saving Environment to %s...\n", env_name_spec); |
a68d3ed0 | 708 | |
f3c615b8 | 709 | return saveenv() ? 1 : 0; |
a68d3ed0 | 710 | } |
8bde7f77 | 711 | |
ba69dc26 | 712 | U_BOOT_CMD( |
ea882baf | 713 | saveenv, 1, 0, do_env_save, |
2fb2604d | 714 | "save environment variables to persistent storage", |
a89c33db | 715 | "" |
ba69dc26 | 716 | ); |
a68d3ed0 | 717 | #endif |
7ac2fe2d | 718 | #endif /* CONFIG_SPL_BUILD */ |
a68d3ed0 WD |
719 | |
720 | ||
ea882baf | 721 | /* |
a68d3ed0 WD |
722 | * Match a name / name=value pair |
723 | * | |
724 | * s1 is either a simple 'name', or a 'name=value' pair. | |
725 | * i2 is the environment index for a 'name2=value2' pair. | |
d09b1787 | 726 | * If the names match, return the index for the value2, else -1. |
a68d3ed0 | 727 | */ |
f3c615b8 | 728 | int envmatch(uchar *s1, int i2) |
a68d3ed0 | 729 | { |
586197df JH |
730 | if (s1 == NULL) |
731 | return -1; | |
732 | ||
a68d3ed0 WD |
733 | while (*s1 == env_get_char(i2++)) |
734 | if (*s1++ == '=') | |
f3c615b8 | 735 | return i2; |
d09b1787 | 736 | |
a68d3ed0 | 737 | if (*s1 == '\0' && env_get_char(i2-1) == '=') |
f3c615b8 | 738 | return i2; |
d09b1787 | 739 | |
f3c615b8 | 740 | return -1; |
a68d3ed0 | 741 | } |
8bde7f77 | 742 | |
7ac2fe2d | 743 | #ifndef CONFIG_SPL_BUILD |
b64b7c3d | 744 | static int do_env_default(cmd_tbl_t *cmdtp, int __flag, |
d09b1787 | 745 | int argc, char * const argv[]) |
ea882baf | 746 | { |
b64b7c3d | 747 | int all = 0, flag = 0; |
f3c615b8 | 748 | |
b64b7c3d GF |
749 | debug("Initial value for argc=%d\n", argc); |
750 | while (--argc > 0 && **++argv == '-') { | |
751 | char *arg = *argv; | |
752 | ||
753 | while (*++arg) { | |
754 | switch (*arg) { | |
755 | case 'a': /* default all */ | |
756 | all = 1; | |
757 | break; | |
758 | case 'f': /* force */ | |
759 | flag |= H_FORCE; | |
760 | break; | |
761 | default: | |
762 | return cmd_usage(cmdtp); | |
763 | } | |
764 | } | |
765 | } | |
766 | debug("Final value for argc=%d\n", argc); | |
767 | if (all && (argc == 0)) { | |
768 | /* Reset the whole environment */ | |
769 | set_default_env("## Resetting to default environment\n"); | |
770 | return 0; | |
771 | } | |
772 | if (!all && (argc > 0)) { | |
773 | /* Reset individual variables */ | |
774 | set_default_vars(argc, argv); | |
775 | return 0; | |
776 | } | |
777 | ||
778 | return cmd_usage(cmdtp); | |
ea882baf WD |
779 | } |
780 | ||
d09b1787 IG |
781 | static int do_env_delete(cmd_tbl_t *cmdtp, int flag, |
782 | int argc, char * const argv[]) | |
ea882baf | 783 | { |
9d8d661d JH |
784 | int env_flag = H_INTERACTIVE; |
785 | int ret = 0; | |
786 | ||
787 | debug("Initial value for argc=%d\n", argc); | |
788 | while (argc > 1 && **(argv + 1) == '-') { | |
789 | char *arg = *++argv; | |
790 | ||
791 | --argc; | |
792 | while (*++arg) { | |
793 | switch (*arg) { | |
794 | case 'f': /* force */ | |
795 | env_flag |= H_FORCE; | |
796 | break; | |
797 | default: | |
798 | return CMD_RET_USAGE; | |
799 | } | |
800 | } | |
801 | } | |
802 | debug("Final value for argc=%d\n", argc); | |
803 | ||
804 | env_id++; | |
805 | ||
806 | while (--argc > 0) { | |
807 | char *name = *++argv; | |
808 | ||
809 | if (!hdelete_r(name, &env_htab, env_flag)) | |
810 | ret = 1; | |
811 | } | |
812 | ||
813 | return ret; | |
ea882baf WD |
814 | } |
815 | ||
0c79cda0 | 816 | #ifdef CONFIG_CMD_EXPORTENV |
ea882baf | 817 | /* |
37f2fe74 | 818 | * env export [-t | -b | -c] [-s size] addr [var ...] |
ea882baf WD |
819 | * -t: export as text format; if size is given, data will be |
820 | * padded with '\0' bytes; if not, one terminating '\0' | |
821 | * will be added (which is included in the "filesize" | |
822 | * setting so you can for exmple copy this to flash and | |
823 | * keep the termination). | |
824 | * -b: export as binary format (name=value pairs separated by | |
825 | * '\0', list end marked by double "\0\0") | |
826 | * -c: export as checksum protected environment format as | |
827 | * used for example by "saveenv" command | |
37f2fe74 WD |
828 | * -s size: |
829 | * size of output buffer | |
ea882baf | 830 | * addr: memory address where environment gets stored |
37f2fe74 WD |
831 | * var... List of variable names that get included into the |
832 | * export. Without arguments, the whole environment gets | |
833 | * exported. | |
ea882baf WD |
834 | * |
835 | * With "-c" and size is NOT given, then the export command will | |
836 | * format the data as currently used for the persistent storage, | |
837 | * i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and | |
838 | * prepend a valid CRC32 checksum and, in case of resundant | |
839 | * environment, a "current" redundancy flag. If size is given, this | |
840 | * value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32 | |
841 | * checksum and redundancy flag will be inserted. | |
842 | * | |
843 | * With "-b" and "-t", always only the real data (including a | |
844 | * terminating '\0' byte) will be written; here the optional size | |
845 | * argument will be used to make sure not to overflow the user | |
846 | * provided buffer; the command will abort if the size is not | |
847 | * sufficient. Any remainign space will be '\0' padded. | |
848 | * | |
849 | * On successful return, the variable "filesize" will be set. | |
850 | * Note that filesize includes the trailing/terminating '\0' byte(s). | |
851 | * | |
852 | * Usage szenario: create a text snapshot/backup of the current settings: | |
853 | * | |
854 | * => env export -t 100000 | |
855 | * => era ${backup_addr} +${filesize} | |
856 | * => cp.b 100000 ${backup_addr} ${filesize} | |
857 | * | |
858 | * Re-import this snapshot, deleting all other settings: | |
859 | * | |
860 | * => env import -d -t ${backup_addr} | |
861 | */ | |
d09b1787 IG |
862 | static int do_env_export(cmd_tbl_t *cmdtp, int flag, |
863 | int argc, char * const argv[]) | |
ea882baf WD |
864 | { |
865 | char buf[32]; | |
fd37dac9 SG |
866 | ulong addr; |
867 | char *ptr, *cmd, *res; | |
37f2fe74 | 868 | size_t size = 0; |
ea882baf WD |
869 | ssize_t len; |
870 | env_t *envp; | |
871 | char sep = '\n'; | |
872 | int chk = 0; | |
873 | int fmt = 0; | |
874 | ||
875 | cmd = *argv; | |
876 | ||
877 | while (--argc > 0 && **++argv == '-') { | |
878 | char *arg = *argv; | |
879 | while (*++arg) { | |
880 | switch (*arg) { | |
881 | case 'b': /* raw binary format */ | |
882 | if (fmt++) | |
883 | goto sep_err; | |
884 | sep = '\0'; | |
885 | break; | |
886 | case 'c': /* external checksum format */ | |
887 | if (fmt++) | |
888 | goto sep_err; | |
889 | sep = '\0'; | |
890 | chk = 1; | |
891 | break; | |
37f2fe74 WD |
892 | case 's': /* size given */ |
893 | if (--argc <= 0) | |
894 | return cmd_usage(cmdtp); | |
895 | size = simple_strtoul(*++argv, NULL, 16); | |
896 | goto NXTARG; | |
ea882baf WD |
897 | case 't': /* text format */ |
898 | if (fmt++) | |
899 | goto sep_err; | |
900 | sep = '\n'; | |
901 | break; | |
902 | default: | |
4c12eeb8 | 903 | return CMD_RET_USAGE; |
ea882baf WD |
904 | } |
905 | } | |
37f2fe74 | 906 | NXTARG: ; |
ea882baf WD |
907 | } |
908 | ||
f3c615b8 | 909 | if (argc < 1) |
4c12eeb8 | 910 | return CMD_RET_USAGE; |
8bde7f77 | 911 | |
fd37dac9 SG |
912 | addr = simple_strtoul(argv[0], NULL, 16); |
913 | ptr = map_sysmem(addr, size); | |
ea882baf | 914 | |
37f2fe74 | 915 | if (size) |
fd37dac9 | 916 | memset(ptr, '\0', size); |
37f2fe74 WD |
917 | |
918 | argc--; | |
919 | argv++; | |
ea882baf WD |
920 | |
921 | if (sep) { /* export as text file */ | |
ea009d47 WD |
922 | len = hexport_r(&env_htab, sep, |
923 | H_MATCH_KEY | H_MATCH_IDENT, | |
fd37dac9 | 924 | &ptr, size, argc, argv); |
ea882baf | 925 | if (len < 0) { |
d09b1787 | 926 | error("Cannot export environment: errno = %d\n", errno); |
ea882baf WD |
927 | return 1; |
928 | } | |
8c3aff52 | 929 | sprintf(buf, "%zX", (size_t)len); |
ea882baf WD |
930 | setenv("filesize", buf); |
931 | ||
932 | return 0; | |
933 | } | |
934 | ||
fd37dac9 | 935 | envp = (env_t *)ptr; |
ea882baf WD |
936 | |
937 | if (chk) /* export as checksum protected block */ | |
938 | res = (char *)envp->data; | |
939 | else /* export as raw binary data */ | |
fd37dac9 | 940 | res = ptr; |
ea882baf | 941 | |
ea009d47 WD |
942 | len = hexport_r(&env_htab, '\0', |
943 | H_MATCH_KEY | H_MATCH_IDENT, | |
944 | &res, ENV_SIZE, argc, argv); | |
ea882baf | 945 | if (len < 0) { |
d09b1787 | 946 | error("Cannot export environment: errno = %d\n", errno); |
ea882baf WD |
947 | return 1; |
948 | } | |
949 | ||
950 | if (chk) { | |
d09b1787 | 951 | envp->crc = crc32(0, envp->data, ENV_SIZE); |
ea882baf WD |
952 | #ifdef CONFIG_ENV_ADDR_REDUND |
953 | envp->flags = ACTIVE_FLAG; | |
954 | #endif | |
955 | } | |
41ef372c | 956 | setenv_hex("filesize", len + offsetof(env_t, data)); |
ea882baf WD |
957 | |
958 | return 0; | |
959 | ||
960 | sep_err: | |
d09b1787 | 961 | printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", cmd); |
ea882baf WD |
962 | return 1; |
963 | } | |
0c79cda0 | 964 | #endif |
ea882baf | 965 | |
0c79cda0 | 966 | #ifdef CONFIG_CMD_IMPORTENV |
ea882baf | 967 | /* |
ecd1446f | 968 | * env import [-d] [-t [-r] | -b | -c] addr [size] |
ea882baf WD |
969 | * -d: delete existing environment before importing; |
970 | * otherwise overwrite / append to existion definitions | |
971 | * -t: assume text format; either "size" must be given or the | |
972 | * text data must be '\0' terminated | |
ecd1446f AH |
973 | * -r: handle CRLF like LF, that means exported variables with |
974 | * a content which ends with \r won't get imported. Used | |
975 | * to import text files created with editors which are using CRLF | |
976 | * for line endings. Only effective in addition to -t. | |
ea882baf WD |
977 | * -b: assume binary format ('\0' separated, "\0\0" terminated) |
978 | * -c: assume checksum protected environment format | |
979 | * addr: memory address to read from | |
980 | * size: length of input data; if missing, proper '\0' | |
981 | * termination is mandatory | |
982 | */ | |
d09b1787 IG |
983 | static int do_env_import(cmd_tbl_t *cmdtp, int flag, |
984 | int argc, char * const argv[]) | |
ea882baf | 985 | { |
fd37dac9 SG |
986 | ulong addr; |
987 | char *cmd, *ptr; | |
ea882baf WD |
988 | char sep = '\n'; |
989 | int chk = 0; | |
990 | int fmt = 0; | |
991 | int del = 0; | |
ecd1446f | 992 | int crlf_is_lf = 0; |
ea882baf WD |
993 | size_t size; |
994 | ||
995 | cmd = *argv; | |
996 | ||
997 | while (--argc > 0 && **++argv == '-') { | |
998 | char *arg = *argv; | |
999 | while (*++arg) { | |
1000 | switch (*arg) { | |
1001 | case 'b': /* raw binary format */ | |
1002 | if (fmt++) | |
1003 | goto sep_err; | |
1004 | sep = '\0'; | |
1005 | break; | |
1006 | case 'c': /* external checksum format */ | |
1007 | if (fmt++) | |
1008 | goto sep_err; | |
1009 | sep = '\0'; | |
1010 | chk = 1; | |
1011 | break; | |
1012 | case 't': /* text format */ | |
1013 | if (fmt++) | |
1014 | goto sep_err; | |
1015 | sep = '\n'; | |
1016 | break; | |
ecd1446f AH |
1017 | case 'r': /* handle CRLF like LF */ |
1018 | crlf_is_lf = 1; | |
1019 | break; | |
ea882baf WD |
1020 | case 'd': |
1021 | del = 1; | |
1022 | break; | |
1023 | default: | |
4c12eeb8 | 1024 | return CMD_RET_USAGE; |
ea882baf WD |
1025 | } |
1026 | } | |
1027 | } | |
1028 | ||
f3c615b8 | 1029 | if (argc < 1) |
4c12eeb8 | 1030 | return CMD_RET_USAGE; |
ea882baf WD |
1031 | |
1032 | if (!fmt) | |
1033 | printf("## Warning: defaulting to text format\n"); | |
1034 | ||
ecd1446f AH |
1035 | if (sep != '\n' && crlf_is_lf ) |
1036 | crlf_is_lf = 0; | |
1037 | ||
fd37dac9 SG |
1038 | addr = simple_strtoul(argv[0], NULL, 16); |
1039 | ptr = map_sysmem(addr, 0); | |
ea882baf WD |
1040 | |
1041 | if (argc == 2) { | |
1042 | size = simple_strtoul(argv[1], NULL, 16); | |
3775dcd9 TR |
1043 | } else if (argc == 1 && chk) { |
1044 | puts("## Error: external checksum format must pass size\n"); | |
1045 | return CMD_RET_FAILURE; | |
ea882baf | 1046 | } else { |
fd37dac9 | 1047 | char *s = ptr; |
ea882baf WD |
1048 | |
1049 | size = 0; | |
1050 | ||
1051 | while (size < MAX_ENV_SIZE) { | |
1052 | if ((*s == sep) && (*(s+1) == '\0')) | |
1053 | break; | |
1054 | ++s; | |
1055 | ++size; | |
1056 | } | |
1057 | if (size == MAX_ENV_SIZE) { | |
1058 | printf("## Warning: Input data exceeds %d bytes" | |
1059 | " - truncated\n", MAX_ENV_SIZE); | |
1060 | } | |
d3f80c77 | 1061 | size += 2; |
79afc88d | 1062 | printf("## Info: input data size = %zu = 0x%zX\n", size, size); |
ea882baf WD |
1063 | } |
1064 | ||
1065 | if (chk) { | |
1066 | uint32_t crc; | |
fd37dac9 | 1067 | env_t *ep = (env_t *)ptr; |
ea882baf WD |
1068 | |
1069 | size -= offsetof(env_t, data); | |
1070 | memcpy(&crc, &ep->crc, sizeof(crc)); | |
1071 | ||
1072 | if (crc32(0, ep->data, size) != crc) { | |
1073 | puts("## Error: bad CRC, import failed\n"); | |
1074 | return 1; | |
1075 | } | |
fd37dac9 | 1076 | ptr = (char *)ep->data; |
ea882baf WD |
1077 | } |
1078 | ||
ecd1446f AH |
1079 | if (himport_r(&env_htab, ptr, size, sep, del ? 0 : H_NOCLEAR, |
1080 | crlf_is_lf, 0, NULL) == 0) { | |
ea882baf WD |
1081 | error("Environment import failed: errno = %d\n", errno); |
1082 | return 1; | |
1083 | } | |
1084 | gd->flags |= GD_FLG_ENV_READY; | |
1085 | ||
1086 | return 0; | |
1087 | ||
1088 | sep_err: | |
1089 | printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", | |
1090 | cmd); | |
1091 | return 1; | |
1092 | } | |
0c79cda0 | 1093 | #endif |
ea882baf | 1094 | |
88733e2c AR |
1095 | #if defined(CONFIG_CMD_ENV_EXISTS) |
1096 | static int do_env_exists(cmd_tbl_t *cmdtp, int flag, int argc, | |
1097 | char * const argv[]) | |
1098 | { | |
1099 | ENTRY e, *ep; | |
1100 | ||
1101 | if (argc < 2) | |
1102 | return CMD_RET_USAGE; | |
1103 | ||
1104 | e.key = argv[1]; | |
1105 | e.data = NULL; | |
1106 | hsearch_r(e, FIND, &ep, &env_htab, 0); | |
1107 | ||
1108 | return (ep == NULL) ? 1 : 0; | |
1109 | } | |
1110 | #endif | |
1111 | ||
ea882baf WD |
1112 | /* |
1113 | * New command line interface: "env" command with subcommands | |
1114 | */ | |
1115 | static cmd_tbl_t cmd_env_sub[] = { | |
1116 | #if defined(CONFIG_CMD_ASKENV) | |
1117 | U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""), | |
1118 | #endif | |
1119 | U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""), | |
9d8d661d | 1120 | U_BOOT_CMD_MKENT(delete, CONFIG_SYS_MAXARGS, 0, do_env_delete, "", ""), |
ea882baf WD |
1121 | #if defined(CONFIG_CMD_EDITENV) |
1122 | U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""), | |
1123 | #endif | |
5e2b3e0c JH |
1124 | #if defined(CONFIG_CMD_ENV_CALLBACK) |
1125 | U_BOOT_CMD_MKENT(callbacks, 1, 0, do_env_callback, "", ""), | |
1126 | #endif | |
fffad71b JH |
1127 | #if defined(CONFIG_CMD_ENV_FLAGS) |
1128 | U_BOOT_CMD_MKENT(flags, 1, 0, do_env_flags, "", ""), | |
1129 | #endif | |
0c79cda0 | 1130 | #if defined(CONFIG_CMD_EXPORTENV) |
ea882baf | 1131 | U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""), |
0c79cda0 | 1132 | #endif |
a000b795 KP |
1133 | #if defined(CONFIG_CMD_GREPENV) |
1134 | U_BOOT_CMD_MKENT(grep, CONFIG_SYS_MAXARGS, 1, do_env_grep, "", ""), | |
1135 | #endif | |
0c79cda0 | 1136 | #if defined(CONFIG_CMD_IMPORTENV) |
ea882baf | 1137 | U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""), |
0c79cda0 | 1138 | #endif |
ea882baf WD |
1139 | U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""), |
1140 | #if defined(CONFIG_CMD_RUN) | |
1141 | U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""), | |
1142 | #endif | |
1143 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) | |
1144 | U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""), | |
1145 | #endif | |
1146 | U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""), | |
88733e2c AR |
1147 | #if defined(CONFIG_CMD_ENV_EXISTS) |
1148 | U_BOOT_CMD_MKENT(exists, 2, 0, do_env_exists, "", ""), | |
1149 | #endif | |
ea882baf WD |
1150 | }; |
1151 | ||
2e5167cc | 1152 | #if defined(CONFIG_NEEDS_MANUAL_RELOC) |
60f7da1f HS |
1153 | void env_reloc(void) |
1154 | { | |
1155 | fixup_cmdtable(cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); | |
1156 | } | |
1157 | #endif | |
1158 | ||
f3c615b8 | 1159 | static int do_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
ea882baf WD |
1160 | { |
1161 | cmd_tbl_t *cp; | |
1162 | ||
5904da02 | 1163 | if (argc < 2) |
4c12eeb8 | 1164 | return CMD_RET_USAGE; |
5904da02 | 1165 | |
ea882baf WD |
1166 | /* drop initial "env" arg */ |
1167 | argc--; | |
1168 | argv++; | |
1169 | ||
1170 | cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); | |
1171 | ||
1172 | if (cp) | |
1173 | return cp->cmd(cmdtp, flag, argc, argv); | |
1174 | ||
4c12eeb8 | 1175 | return CMD_RET_USAGE; |
ea882baf WD |
1176 | } |
1177 | ||
088f1b19 KP |
1178 | #ifdef CONFIG_SYS_LONGHELP |
1179 | static char env_help_text[] = | |
ea882baf WD |
1180 | #if defined(CONFIG_CMD_ASKENV) |
1181 | "ask name [message] [size] - ask for environment variable\nenv " | |
5e2b3e0c JH |
1182 | #endif |
1183 | #if defined(CONFIG_CMD_ENV_CALLBACK) | |
1184 | "callbacks - print callbacks and their associated variables\nenv " | |
ea882baf | 1185 | #endif |
b64b7c3d GF |
1186 | "default [-f] -a - [forcibly] reset default environment\n" |
1187 | "env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n" | |
9d8d661d | 1188 | "env delete [-f] var [...] - [forcibly] delete variable(s)\n" |
ea882baf WD |
1189 | #if defined(CONFIG_CMD_EDITENV) |
1190 | "env edit name - edit environment variable\n" | |
1191 | #endif | |
88733e2c AR |
1192 | #if defined(CONFIG_CMD_ENV_EXISTS) |
1193 | "env exists name - tests for existence of variable\n" | |
1194 | #endif | |
4796bc4b | 1195 | #if defined(CONFIG_CMD_EXPORTENV) |
37f2fe74 | 1196 | "env export [-t | -b | -c] [-s size] addr [var ...] - export environment\n" |
4796bc4b | 1197 | #endif |
fffad71b JH |
1198 | #if defined(CONFIG_CMD_ENV_FLAGS) |
1199 | "env flags - print variables that have non-default flags\n" | |
1200 | #endif | |
a000b795 | 1201 | #if defined(CONFIG_CMD_GREPENV) |
be29df6a WD |
1202 | #ifdef CONFIG_REGEX |
1203 | "env grep [-e] [-n | -v | -b] string [...] - search environment\n" | |
1204 | #else | |
d87244d5 | 1205 | "env grep [-n | -v | -b] string [...] - search environment\n" |
a000b795 | 1206 | #endif |
be29df6a | 1207 | #endif |
4796bc4b | 1208 | #if defined(CONFIG_CMD_IMPORTENV) |
ecd1446f | 1209 | "env import [-d] [-t [-r] | -b | -c] addr [size] - import environment\n" |
4796bc4b | 1210 | #endif |
be11235a | 1211 | "env print [-a | name ...] - print environment\n" |
ea882baf WD |
1212 | #if defined(CONFIG_CMD_RUN) |
1213 | "env run var [...] - run commands in an environment variable\n" | |
1214 | #endif | |
d798a9b5 | 1215 | #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) |
ea882baf | 1216 | "env save - save environment\n" |
d798a9b5 | 1217 | #endif |
088f1b19 KP |
1218 | "env set [-f] name [arg ...]\n"; |
1219 | #endif | |
1220 | ||
1221 | U_BOOT_CMD( | |
1222 | env, CONFIG_SYS_MAXARGS, 1, do_env, | |
1223 | "environment handling commands", env_help_text | |
ea882baf WD |
1224 | ); |
1225 | ||
1226 | /* | |
1227 | * Old command line interface, kept for compatibility | |
1228 | */ | |
8bde7f77 | 1229 | |
246c6922 | 1230 | #if defined(CONFIG_CMD_EDITENV) |
722b061b | 1231 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1232 | editenv, 2, 0, do_env_edit, |
246c6922 PT |
1233 | "edit environment variable", |
1234 | "name\n" | |
722b061b MF |
1235 | " - edit environment variable 'name'", |
1236 | var_complete | |
246c6922 PT |
1237 | ); |
1238 | #endif | |
1239 | ||
722b061b | 1240 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1241 | printenv, CONFIG_SYS_MAXARGS, 1, do_env_print, |
2fb2604d | 1242 | "print environment variables", |
be11235a | 1243 | "[-a]\n - print [all] values of all environment variables\n" |
8bde7f77 | 1244 | "printenv name ...\n" |
722b061b MF |
1245 | " - print value of environment variable 'name'", |
1246 | var_complete | |
8bde7f77 WD |
1247 | ); |
1248 | ||
a000b795 KP |
1249 | #ifdef CONFIG_CMD_GREPENV |
1250 | U_BOOT_CMD_COMPLETE( | |
1251 | grepenv, CONFIG_SYS_MAXARGS, 0, do_env_grep, | |
1252 | "search environment variables", | |
be29df6a WD |
1253 | #ifdef CONFIG_REGEX |
1254 | "[-e] [-n | -v | -b] string ...\n" | |
1255 | #else | |
d87244d5 | 1256 | "[-n | -v | -b] string ...\n" |
be29df6a | 1257 | #endif |
d87244d5 | 1258 | " - list environment name=value pairs matching 'string'\n" |
be29df6a WD |
1259 | #ifdef CONFIG_REGEX |
1260 | " \"-e\": enable regular expressions;\n" | |
1261 | #endif | |
d87244d5 WD |
1262 | " \"-n\": search variable names; \"-v\": search values;\n" |
1263 | " \"-b\": search both names and values (default)", | |
a000b795 KP |
1264 | var_complete |
1265 | ); | |
1266 | #endif | |
1267 | ||
722b061b | 1268 | U_BOOT_CMD_COMPLETE( |
ea882baf | 1269 | setenv, CONFIG_SYS_MAXARGS, 0, do_env_set, |
2fb2604d | 1270 | "set environment variables", |
24ab5a19 JH |
1271 | "[-f] name value ...\n" |
1272 | " - [forcibly] set environment variable 'name' to 'value ...'\n" | |
1273 | "setenv [-f] name\n" | |
1274 | " - [forcibly] delete environment variable 'name'", | |
722b061b | 1275 | var_complete |
8bde7f77 WD |
1276 | ); |
1277 | ||
c76fe474 | 1278 | #if defined(CONFIG_CMD_ASKENV) |
8bde7f77 | 1279 | |
0d498393 | 1280 | U_BOOT_CMD( |
ea882baf | 1281 | askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask, |
2fb2604d | 1282 | "get environment variables from stdin", |
8bde7f77 | 1283 | "name [message] [size]\n" |
7d85591d | 1284 | " - get environment variable 'name' from stdin (max 'size' chars)" |
8bde7f77 | 1285 | ); |
90253178 | 1286 | #endif |
8bde7f77 | 1287 | |
c76fe474 | 1288 | #if defined(CONFIG_CMD_RUN) |
722b061b | 1289 | U_BOOT_CMD_COMPLETE( |
6d0f6bcf | 1290 | run, CONFIG_SYS_MAXARGS, 1, do_run, |
2fb2604d | 1291 | "run commands in an environment variable", |
8bde7f77 | 1292 | "var [...]\n" |
722b061b MF |
1293 | " - run the commands in the environment variable(s) 'var'", |
1294 | var_complete | |
8bde7f77 | 1295 | ); |
90253178 | 1296 | #endif |
7ac2fe2d | 1297 | #endif /* CONFIG_SPL_BUILD */ |