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wdenka68d3ed2002-10-11 08:38:32 +00001/*
Wolfgang Denkea009d42013-03-23 23:50:28 +00002 * (C) Copyright 2000-2013
wdenka68d3ed2002-10-11 08:38:32 +00003 * 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>
Kim Phillipsa000b792011-04-05 07:15:14 +00007 *
8 * Copyright 2011 Freescale Semiconductor, Inc.
9 *
Wolfgang Denk3765b3e2013-10-07 13:07:26 +020010 * SPDX-License-Identifier: GPL-2.0+
wdenka68d3ed2002-10-11 08:38:32 +000011 */
12
Wolfgang Denkea882ba2010-06-20 23:33:59 +020013/*
wdenka68d3ed2002-10-11 08:38:32 +000014 * Support for persistent environment data
15 *
Wolfgang Denkea882ba2010-06-20 23:33:59 +020016 * 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.
wdenka68d3ed2002-10-11 08:38:32 +000021 *
Wolfgang Denkea882ba2010-06-20 23:33:59 +020022 * 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.
wdenka68d3ed2002-10-11 08:38:32 +000025 */
26
27#include <common.h>
Simon Glass18d66532014-04-10 20:01:25 -060028#include <cli.h>
wdenka68d3ed2002-10-11 08:38:32 +000029#include <command.h>
Simon Glass24b852a2015-11-08 23:47:45 -070030#include <console.h>
wdenka68d3ed2002-10-11 08:38:32 +000031#include <environment.h>
Wolfgang Denkea882ba2010-06-20 23:33:59 +020032#include <search.h>
33#include <errno.h>
Peter Tyser246c6922009-10-25 15:12:56 -050034#include <malloc.h>
Joe Hershberger0eb25b62015-03-22 17:08:59 -050035#include <mapmem.h>
wdenk2a3cb022002-11-05 21:01:48 +000036#include <watchdog.h>
wdenka68d3ed2002-10-11 08:38:32 +000037#include <linux/stddef.h>
38#include <asm/byteorder.h>
Simon Glassfd37dac2013-10-25 23:01:31 -060039#include <asm/io.h>
wdenka68d3ed2002-10-11 08:38:32 +000040
Wolfgang Denkd87080b2006-03-31 18:32:53 +020041DECLARE_GLOBAL_DATA_PTR;
42
Macpaul Linf3c615b2011-04-26 16:16:45 +000043#if !defined(CONFIG_ENV_IS_IN_EEPROM) && \
44 !defined(CONFIG_ENV_IS_IN_FLASH) && \
45 !defined(CONFIG_ENV_IS_IN_DATAFLASH) && \
Macpaul Linf3c615b2011-04-26 16:16:45 +000046 !defined(CONFIG_ENV_IS_IN_MMC) && \
Maximilian Schwerin57210c72012-03-12 23:57:50 +000047 !defined(CONFIG_ENV_IS_IN_FAT) && \
Macpaul Linf3c615b2011-04-26 16:16:45 +000048 !defined(CONFIG_ENV_IS_IN_NAND) && \
49 !defined(CONFIG_ENV_IS_IN_NVRAM) && \
50 !defined(CONFIG_ENV_IS_IN_ONENAND) && \
51 !defined(CONFIG_ENV_IS_IN_SPI_FLASH) && \
Liu Gang0a85a9e2012-03-08 00:33:20 +000052 !defined(CONFIG_ENV_IS_IN_REMOTE) && \
Joe Hershberger2b744332013-04-08 10:32:51 +000053 !defined(CONFIG_ENV_IS_IN_UBI) && \
Macpaul Linf3c615b2011-04-26 16:16:45 +000054 !defined(CONFIG_ENV_IS_NOWHERE)
unsik Kim75eb82e2009-02-25 11:31:24 +090055# error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|ONENAND|\
Joe Hershberger2b744332013-04-08 10:32:51 +000056SPI_FLASH|NVRAM|MMC|FAT|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE
wdenka68d3ed2002-10-11 08:38:32 +000057#endif
58
Wolfgang Denkea882ba2010-06-20 23:33:59 +020059/*
60 * Maximum expected input data size for import command
61 */
62#define MAX_ENV_SIZE (1 << 20) /* 1 MiB */
wdenka68d3ed2002-10-11 08:38:32 +000063
wdenka68d3ed2002-10-11 08:38:32 +000064/*
Wolfgang Denkea882ba2010-06-20 23:33:59 +020065 * This variable is incremented on each do_env_set(), so it can
Heiko Schocherda954272009-04-28 08:36:11 +020066 * be used via get_env_id() as an indication, if the environment
67 * has changed or not. So it is possible to reread an environment
68 * variable only if the environment was changed ... done so for
69 * example in NetInitLoop()
70 */
Heiko Schocher2f70c492009-02-10 09:38:52 +010071static int env_id = 1;
wdenka68d3ed2002-10-11 08:38:32 +000072
Macpaul Linf3c615b2011-04-26 16:16:45 +000073int get_env_id(void)
Heiko Schocher2f70c492009-02-10 09:38:52 +010074{
75 return env_id;
76}
wdenka68d3ed2002-10-11 08:38:32 +000077
Ilya Yanok7ac2fe22012-09-18 00:22:50 +000078#ifndef CONFIG_SPL_BUILD
Mike Frysinger4c94f6c2009-05-24 02:26:19 -040079/*
Wolfgang Denkea882ba2010-06-20 23:33:59 +020080 * Command interface: print one or all environment variables
81 *
82 * Returns 0 in case of error, or length of printed string
Mike Frysinger4c94f6c2009-05-24 02:26:19 -040083 */
Joe Hershbergerbe112352012-12-11 22:16:23 -060084static int env_print(char *name, int flag)
wdenka68d3ed2002-10-11 08:38:32 +000085{
Wolfgang Denkea882ba2010-06-20 23:33:59 +020086 char *res = NULL;
Maxime Larocque22a4a6c2012-09-28 05:00:13 +000087 ssize_t len;
wdenka68d3ed2002-10-11 08:38:32 +000088
Wolfgang Denkea882ba2010-06-20 23:33:59 +020089 if (name) { /* print a single name */
90 ENTRY e, *ep;
wdenka68d3ed2002-10-11 08:38:32 +000091
Wolfgang Denkea882ba2010-06-20 23:33:59 +020092 e.key = name;
93 e.data = NULL;
Joe Hershbergerbe112352012-12-11 22:16:23 -060094 hsearch_r(e, FIND, &ep, &env_htab, flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +020095 if (ep == NULL)
96 return 0;
Macpaul Linf3c615b2011-04-26 16:16:45 +000097 len = printf("%s=%s\n", ep->key, ep->data);
Wolfgang Denkea882ba2010-06-20 23:33:59 +020098 return len;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -040099 }
wdenka68d3ed2002-10-11 08:38:32 +0000100
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200101 /* print whole list */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600102 len = hexport_r(&env_htab, '\n', flag, &res, 0, 0, NULL);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200103
104 if (len > 0) {
105 puts(res);
106 free(res);
107 return len;
108 }
109
110 /* should never happen */
Maxime Larocque22a4a6c2012-09-28 05:00:13 +0000111 printf("## Error: cannot export environment\n");
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200112 return 0;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400113}
114
Kim Phillips088f1b12012-10-29 13:34:31 +0000115static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc,
116 char * const argv[])
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400117{
118 int i;
119 int rcode = 0;
Joe Hershbergerbe112352012-12-11 22:16:23 -0600120 int env_flag = H_HIDE_DOT;
121
122 if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') {
123 argc--;
124 argv++;
125 env_flag &= ~H_HIDE_DOT;
126 }
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400127
128 if (argc == 1) {
129 /* print all env vars */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600130 rcode = env_print(NULL, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200131 if (!rcode)
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400132 return 1;
133 printf("\nEnvironment size: %d/%ld bytes\n",
134 rcode, (ulong)ENV_SIZE);
wdenka68d3ed2002-10-11 08:38:32 +0000135 return 0;
136 }
137
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400138 /* print selected env vars */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600139 env_flag &= ~H_HIDE_DOT;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400140 for (i = 1; i < argc; ++i) {
Joe Hershbergerbe112352012-12-11 22:16:23 -0600141 int rc = env_print(argv[i], env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200142 if (!rc) {
143 printf("## Error: \"%s\" not defined\n", argv[i]);
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400144 ++rcode;
wdenka68d3ed2002-10-11 08:38:32 +0000145 }
146 }
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400147
wdenka68d3ed2002-10-11 08:38:32 +0000148 return rcode;
149}
150
Kim Phillipsa000b792011-04-05 07:15:14 +0000151#ifdef CONFIG_CMD_GREPENV
Igor Grinbergd09b1782011-11-07 01:13:59 +0000152static int do_env_grep(cmd_tbl_t *cmdtp, int flag,
153 int argc, char * const argv[])
Kim Phillipsa000b792011-04-05 07:15:14 +0000154{
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000155 char *res = NULL;
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000156 int len, grep_how, grep_what;
Kim Phillipsa000b792011-04-05 07:15:14 +0000157
158 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000159 return CMD_RET_USAGE;
Kim Phillipsa000b792011-04-05 07:15:14 +0000160
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000161 grep_how = H_MATCH_SUBSTR; /* default: substring search */
162 grep_what = H_MATCH_BOTH; /* default: grep names and values */
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000163
Pierre Aubert9a832332013-10-08 14:20:27 +0200164 while (--argc > 0 && **++argv == '-') {
165 char *arg = *argv;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000166 while (*++arg) {
167 switch (*arg) {
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000168#ifdef CONFIG_REGEX
169 case 'e': /* use regex matching */
170 grep_how = H_MATCH_REGEX;
171 break;
172#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000173 case 'n': /* grep for name */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000174 grep_what = H_MATCH_KEY;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000175 break;
176 case 'v': /* grep for value */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000177 grep_what = H_MATCH_DATA;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000178 break;
179 case 'b': /* grep for both */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000180 grep_what = H_MATCH_BOTH;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000181 break;
182 case '-':
183 goto DONE;
184 default:
185 return CMD_RET_USAGE;
186 }
187 }
188 }
189
190DONE:
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000191 len = hexport_r(&env_htab, '\n',
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000192 flag | grep_what | grep_how,
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000193 &res, 0, argc, argv);
Kim Phillipsa000b792011-04-05 07:15:14 +0000194
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000195 if (len > 0) {
196 puts(res);
197 free(res);
Kim Phillipsa000b792011-04-05 07:15:14 +0000198 }
199
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000200 if (len < 2)
201 return 1;
202
203 return 0;
Kim Phillipsa000b792011-04-05 07:15:14 +0000204}
205#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000206#endif /* CONFIG_SPL_BUILD */
Kim Phillipsa000b792011-04-05 07:15:14 +0000207
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200208/*
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000209 * Set a new environment variable,
210 * or replace or delete an existing one.
Joe Hershberger25980902012-12-11 22:16:31 -0600211 */
Joe Hershberger94b467b2015-05-20 14:27:21 -0500212static int _do_env_set(int flag, int argc, char * const argv[], int env_flag)
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000213{
214 int i, len;
215 char *name, *value, *s;
216 ENTRY e, *ep;
217
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600218 debug("Initial value for argc=%d\n", argc);
219 while (argc > 1 && **(argv + 1) == '-') {
220 char *arg = *++argv;
221
222 --argc;
223 while (*++arg) {
224 switch (*arg) {
225 case 'f': /* force */
226 env_flag |= H_FORCE;
227 break;
228 default:
229 return CMD_RET_USAGE;
230 }
231 }
232 }
233 debug("Final value for argc=%d\n", argc);
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000234 name = argv[1];
235 value = argv[2];
236
237 if (strchr(name, '=')) {
238 printf("## Error: illegal character '='"
239 "in variable name \"%s\"\n", name);
240 return 1;
241 }
242
243 env_id++;
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000244
wdenka68d3ed2002-10-11 08:38:32 +0000245 /* Delete only ? */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000246 if (argc < 3 || argv[2] == NULL) {
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600247 int rc = hdelete_r(name, &env_htab, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200248 return !rc;
wdenka68d3ed2002-10-11 08:38:32 +0000249 }
250
251 /*
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200252 * Insert / replace new value
wdenka68d3ed2002-10-11 08:38:32 +0000253 */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000254 for (i = 2, len = 0; i < argc; ++i)
wdenka68d3ed2002-10-11 08:38:32 +0000255 len += strlen(argv[i]) + 1;
Macpaul Linf3c615b2011-04-26 16:16:45 +0000256
257 value = malloc(len);
258 if (value == NULL) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200259 printf("## Can't malloc %d bytes\n", len);
wdenka68d3ed2002-10-11 08:38:32 +0000260 return 1;
261 }
Macpaul Linf3c615b2011-04-26 16:16:45 +0000262 for (i = 2, s = value; i < argc; ++i) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200263 char *v = argv[i];
wdenka68d3ed2002-10-11 08:38:32 +0000264
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200265 while ((*s++ = *v++) != '\0')
wdenka68d3ed2002-10-11 08:38:32 +0000266 ;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000267 *(s - 1) = ' ';
wdenka68d3ed2002-10-11 08:38:32 +0000268 }
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200269 if (s != value)
270 *--s = '\0';
wdenka68d3ed2002-10-11 08:38:32 +0000271
Igor Grinbergd09b1782011-11-07 01:13:59 +0000272 e.key = name;
273 e.data = value;
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600274 hsearch_r(e, ENTER, &ep, &env_htab, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200275 free(value);
276 if (!ep) {
277 printf("## Error inserting \"%s\" variable, errno=%d\n",
278 name, errno);
279 return 1;
280 }
wdenka68d3ed2002-10-11 08:38:32 +0000281
wdenka68d3ed2002-10-11 08:38:32 +0000282 return 0;
283}
284
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200285int setenv(const char *varname, const char *varvalue)
wdenka68d3ed2002-10-11 08:38:32 +0000286{
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200287 const char * const argv[4] = { "setenv", varname, varvalue, NULL };
288
Joe Hershbergera7eb1d62013-04-08 10:32:50 +0000289 /* before import into hashtable */
290 if (!(gd->flags & GD_FLG_ENV_READY))
291 return 1;
292
Igor Grinbergd09b1782011-11-07 01:13:59 +0000293 if (varvalue == NULL || varvalue[0] == '\0')
Joe Hershberger94b467b2015-05-20 14:27:21 -0500294 return _do_env_set(0, 2, (char * const *)argv, H_PROGRAMMATIC);
Jeffrey Mann9ffd4512007-04-23 14:00:11 +0200295 else
Joe Hershberger94b467b2015-05-20 14:27:21 -0500296 return _do_env_set(0, 3, (char * const *)argv, H_PROGRAMMATIC);
wdenka68d3ed2002-10-11 08:38:32 +0000297}
298
Simon Glassd67f10c2011-10-24 17:59:59 +0000299/**
300 * Set an environment variable to an integer value
301 *
Simon Glass96022862013-05-07 06:11:45 +0000302 * @param varname Environment variable to set
Simon Glassd67f10c2011-10-24 17:59:59 +0000303 * @param value Value to set it to
304 * @return 0 if ok, 1 on error
305 */
306int setenv_ulong(const char *varname, ulong value)
307{
308 /* TODO: this should be unsigned */
309 char *str = simple_itoa(value);
310
311 return setenv(varname, str);
312}
313
314/**
Simon Glassbfc59962013-02-24 17:33:21 +0000315 * Set an environment variable to an value in hex
Simon Glassd67f10c2011-10-24 17:59:59 +0000316 *
Simon Glass96022862013-05-07 06:11:45 +0000317 * @param varname Environment variable to set
Simon Glassbfc59962013-02-24 17:33:21 +0000318 * @param value Value to set it to
Simon Glassd67f10c2011-10-24 17:59:59 +0000319 * @return 0 if ok, 1 on error
320 */
Simon Glassbfc59962013-02-24 17:33:21 +0000321int setenv_hex(const char *varname, ulong value)
Simon Glassd67f10c2011-10-24 17:59:59 +0000322{
323 char str[17];
324
Simon Glassbfc59962013-02-24 17:33:21 +0000325 sprintf(str, "%lx", value);
Simon Glassd67f10c2011-10-24 17:59:59 +0000326 return setenv(varname, str);
327}
328
Simon Glass76b8f792013-04-20 08:42:43 +0000329ulong getenv_hex(const char *varname, ulong default_val)
330{
331 const char *s;
332 ulong value;
333 char *endp;
334
335 s = getenv(varname);
336 if (s)
337 value = simple_strtoul(s, &endp, 16);
338 if (!s || endp == s)
339 return default_val;
340
341 return value;
342}
343
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000344#ifndef CONFIG_SPL_BUILD
Kim Phillips088f1b12012-10-29 13:34:31 +0000345static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000346{
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200347 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000348 return CMD_RET_USAGE;
wdenka68d3ed2002-10-11 08:38:32 +0000349
Joe Hershberger94b467b2015-05-20 14:27:21 -0500350 return _do_env_set(flag, argc, argv, H_INTERACTIVE);
wdenka68d3ed2002-10-11 08:38:32 +0000351}
352
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200353/*
wdenka68d3ed2002-10-11 08:38:32 +0000354 * Prompt for environment variable
355 */
Jon Loeligerc76fe472007-07-08 18:02:23 -0500356#if defined(CONFIG_CMD_ASKENV)
Macpaul Linf3c615b2011-04-26 16:16:45 +0000357int do_env_ask(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000358{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200359 char message[CONFIG_SYS_CBSIZE];
Wolfgang Denk7d855912013-02-20 04:53:16 +0000360 int i, len, pos, size;
wdenka68d3ed2002-10-11 08:38:32 +0000361 char *local_args[4];
Wolfgang Denk7d855912013-02-20 04:53:16 +0000362 char *endptr;
wdenka68d3ed2002-10-11 08:38:32 +0000363
364 local_args[0] = argv[0];
365 local_args[1] = argv[1];
366 local_args[2] = NULL;
367 local_args[3] = NULL;
368
Wolfgang Denk7d855912013-02-20 04:53:16 +0000369 /*
370 * Check the syntax:
371 *
372 * env_ask envname [message1 ...] [size]
373 */
374 if (argc == 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000375 return CMD_RET_USAGE;
wdenka68d3ed2002-10-11 08:38:32 +0000376
Wolfgang Denk7d855912013-02-20 04:53:16 +0000377 /*
378 * We test the last argument if it can be converted
379 * into a decimal number. If yes, we assume it's
380 * the size. Otherwise we echo it as part of the
381 * message.
382 */
383 i = simple_strtoul(argv[argc - 1], &endptr, 10);
384 if (*endptr != '\0') { /* no size */
385 size = CONFIG_SYS_CBSIZE - 1;
386 } else { /* size given */
387 size = i;
388 --argc;
389 }
wdenka68d3ed2002-10-11 08:38:32 +0000390
Wolfgang Denk7d855912013-02-20 04:53:16 +0000391 if (argc <= 2) {
392 sprintf(message, "Please enter '%s': ", argv[1]);
393 } else {
394 /* env_ask envname message1 ... messagen [size] */
395 for (i = 2, pos = 0; i < argc; i++) {
Macpaul Linf3c615b2011-04-26 16:16:45 +0000396 if (pos)
wdenka68d3ed2002-10-11 08:38:32 +0000397 message[pos++] = ' ';
Macpaul Linf3c615b2011-04-26 16:16:45 +0000398
Igor Grinbergd09b1782011-11-07 01:13:59 +0000399 strcpy(message + pos, argv[i]);
wdenka68d3ed2002-10-11 08:38:32 +0000400 pos += strlen(argv[i]);
401 }
Wolfgang Denk7d855912013-02-20 04:53:16 +0000402 message[pos++] = ' ';
wdenka68d3ed2002-10-11 08:38:32 +0000403 message[pos] = '\0';
wdenka68d3ed2002-10-11 08:38:32 +0000404 }
405
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200406 if (size >= CONFIG_SYS_CBSIZE)
407 size = CONFIG_SYS_CBSIZE - 1;
wdenka68d3ed2002-10-11 08:38:32 +0000408
409 if (size <= 0)
410 return 1;
411
412 /* prompt for input */
Simon Glasse1bf8242014-04-10 20:01:27 -0600413 len = cli_readline(message);
wdenka68d3ed2002-10-11 08:38:32 +0000414
415 if (size < len)
416 console_buffer[size] = '\0';
417
418 len = 2;
419 if (console_buffer[0] != '\0') {
420 local_args[2] = console_buffer;
421 len = 3;
422 }
423
424 /* Continue calling setenv code */
Joe Hershberger94b467b2015-05-20 14:27:21 -0500425 return _do_env_set(flag, len, local_args, H_INTERACTIVE);
wdenka68d3ed2002-10-11 08:38:32 +0000426}
Jon Loeliger90253172007-07-10 11:02:44 -0500427#endif
wdenka68d3ed2002-10-11 08:38:32 +0000428
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600429#if defined(CONFIG_CMD_ENV_CALLBACK)
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500430static int print_static_binding(const char *var_name, const char *callback_name,
431 void *priv)
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600432{
433 printf("\t%-20s %-20s\n", var_name, callback_name);
434
435 return 0;
436}
437
438static int print_active_callback(ENTRY *entry)
439{
440 struct env_clbk_tbl *clbkp;
441 int i;
442 int num_callbacks;
443
444 if (entry->callback == NULL)
445 return 0;
446
447 /* look up the callback in the linker-list */
448 num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
449 for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
450 i < num_callbacks;
451 i++, clbkp++) {
452#if defined(CONFIG_NEEDS_MANUAL_RELOC)
453 if (entry->callback == clbkp->callback + gd->reloc_off)
454#else
455 if (entry->callback == clbkp->callback)
456#endif
457 break;
458 }
459
460 if (i == num_callbacks)
461 /* this should probably never happen, but just in case... */
462 printf("\t%-20s %p\n", entry->key, entry->callback);
463 else
464 printf("\t%-20s %-20s\n", entry->key, clbkp->name);
465
466 return 0;
467}
468
469/*
470 * Print the callbacks available and what they are bound to
471 */
472int do_env_callback(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
473{
474 struct env_clbk_tbl *clbkp;
475 int i;
476 int num_callbacks;
477
478 /* Print the available callbacks */
479 puts("Available callbacks:\n");
480 puts("\tCallback Name\n");
481 puts("\t-------------\n");
482 num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
483 for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
484 i < num_callbacks;
485 i++, clbkp++)
486 printf("\t%s\n", clbkp->name);
487 puts("\n");
488
489 /* Print the static bindings that may exist */
490 puts("Static callback bindings:\n");
491 printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
492 printf("\t%-20s %-20s\n", "-------------", "-------------");
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500493 env_attr_walk(ENV_CALLBACK_LIST_STATIC, print_static_binding, NULL);
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600494 puts("\n");
495
496 /* walk through each variable and print the callback if it has one */
497 puts("Active callback bindings:\n");
498 printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
499 printf("\t%-20s %-20s\n", "-------------", "-------------");
500 hwalk_r(&env_htab, print_active_callback);
501 return 0;
502}
503#endif
504
Joe Hershbergerfffad712012-12-11 22:16:33 -0600505#if defined(CONFIG_CMD_ENV_FLAGS)
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500506static int print_static_flags(const char *var_name, const char *flags,
507 void *priv)
Joe Hershbergerfffad712012-12-11 22:16:33 -0600508{
509 enum env_flags_vartype type = env_flags_parse_vartype(flags);
Joe Hershberger267541f2012-12-11 22:16:34 -0600510 enum env_flags_varaccess access = env_flags_parse_varaccess(flags);
Joe Hershbergerfffad712012-12-11 22:16:33 -0600511
Joe Hershberger267541f2012-12-11 22:16:34 -0600512 printf("\t%-20s %-20s %-20s\n", var_name,
513 env_flags_get_vartype_name(type),
514 env_flags_get_varaccess_name(access));
Joe Hershbergerfffad712012-12-11 22:16:33 -0600515
516 return 0;
517}
518
519static int print_active_flags(ENTRY *entry)
520{
521 enum env_flags_vartype type;
Joe Hershberger267541f2012-12-11 22:16:34 -0600522 enum env_flags_varaccess access;
Joe Hershbergerfffad712012-12-11 22:16:33 -0600523
524 if (entry->flags == 0)
525 return 0;
526
527 type = (enum env_flags_vartype)
528 (entry->flags & ENV_FLAGS_VARTYPE_BIN_MASK);
Joe Hershberger267541f2012-12-11 22:16:34 -0600529 access = env_flags_parse_varaccess_from_binflags(entry->flags);
530 printf("\t%-20s %-20s %-20s\n", entry->key,
531 env_flags_get_vartype_name(type),
532 env_flags_get_varaccess_name(access));
Joe Hershbergerfffad712012-12-11 22:16:33 -0600533
534 return 0;
535}
536
537/*
538 * Print the flags available and what variables have flags
539 */
540int do_env_flags(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
541{
542 /* Print the available variable types */
543 printf("Available variable type flags (position %d):\n",
544 ENV_FLAGS_VARTYPE_LOC);
545 puts("\tFlag\tVariable Type Name\n");
546 puts("\t----\t------------------\n");
547 env_flags_print_vartypes();
548 puts("\n");
549
Joe Hershberger267541f2012-12-11 22:16:34 -0600550 /* Print the available variable access types */
551 printf("Available variable access flags (position %d):\n",
552 ENV_FLAGS_VARACCESS_LOC);
553 puts("\tFlag\tVariable Access Name\n");
554 puts("\t----\t--------------------\n");
555 env_flags_print_varaccess();
556 puts("\n");
557
Joe Hershbergerfffad712012-12-11 22:16:33 -0600558 /* Print the static flags that may exist */
559 puts("Static flags:\n");
Joe Hershberger267541f2012-12-11 22:16:34 -0600560 printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type",
561 "Variable Access");
562 printf("\t%-20s %-20s %-20s\n", "-------------", "-------------",
563 "---------------");
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500564 env_attr_walk(ENV_FLAGS_LIST_STATIC, print_static_flags, NULL);
Joe Hershbergerfffad712012-12-11 22:16:33 -0600565 puts("\n");
566
567 /* walk through each variable and print the flags if non-default */
568 puts("Active flags:\n");
Joe Hershberger267541f2012-12-11 22:16:34 -0600569 printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type",
570 "Variable Access");
571 printf("\t%-20s %-20s %-20s\n", "-------------", "-------------",
572 "---------------");
Joe Hershbergerfffad712012-12-11 22:16:33 -0600573 hwalk_r(&env_htab, print_active_flags);
574 return 0;
575}
576#endif
577
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200578/*
Peter Tyser246c6922009-10-25 15:12:56 -0500579 * Interactively edit an environment variable
580 */
581#if defined(CONFIG_CMD_EDITENV)
Kim Phillips088f1b12012-10-29 13:34:31 +0000582static int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc,
583 char * const argv[])
Peter Tyser246c6922009-10-25 15:12:56 -0500584{
585 char buffer[CONFIG_SYS_CBSIZE];
586 char *init_val;
Peter Tyser246c6922009-10-25 15:12:56 -0500587
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200588 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000589 return CMD_RET_USAGE;
Peter Tyser246c6922009-10-25 15:12:56 -0500590
Joe Hershberger94b467b2015-05-20 14:27:21 -0500591 /* before import into hashtable */
592 if (!(gd->flags & GD_FLG_ENV_READY))
593 return 1;
594
Peter Tyser246c6922009-10-25 15:12:56 -0500595 /* Set read buffer to initial value or empty sting */
596 init_val = getenv(argv[1]);
597 if (init_val)
Marek Vasut7fcd9bb2011-09-26 02:26:03 +0200598 sprintf(buffer, "%s", init_val);
Peter Tyser246c6922009-10-25 15:12:56 -0500599 else
600 buffer[0] = '\0';
601
Simon Glasse1bf8242014-04-10 20:01:27 -0600602 if (cli_readline_into_buffer("edit: ", buffer, 0) < 0)
Joe Hershberger18a3cce2013-02-08 10:12:34 +0000603 return 1;
Peter Tyser246c6922009-10-25 15:12:56 -0500604
Joe Hershberger94b467b2015-05-20 14:27:21 -0500605 if (buffer[0] == '\0') {
606 const char * const _argv[3] = { "setenv", argv[1], NULL };
607
608 return _do_env_set(0, 2, (char * const *)_argv, H_INTERACTIVE);
609 } else {
610 const char * const _argv[4] = { "setenv", argv[1], buffer,
611 NULL };
612
613 return _do_env_set(0, 3, (char * const *)_argv, H_INTERACTIVE);
614 }
Peter Tyser246c6922009-10-25 15:12:56 -0500615}
616#endif /* CONFIG_CMD_EDITENV */
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000617#endif /* CONFIG_SPL_BUILD */
Peter Tyser246c6922009-10-25 15:12:56 -0500618
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200619/*
wdenka68d3ed2002-10-11 08:38:32 +0000620 * Look up variable from environment,
621 * return address of storage for that variable,
622 * or NULL if not found
623 */
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200624char *getenv(const char *name)
wdenka68d3ed2002-10-11 08:38:32 +0000625{
Igor Grinbergd09b1782011-11-07 01:13:59 +0000626 if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200627 ENTRY e, *ep;
wdenka68d3ed2002-10-11 08:38:32 +0000628
Wolfgang Denk91a76752010-07-24 20:22:02 +0200629 WATCHDOG_RESET();
wdenk2a3cb022002-11-05 21:01:48 +0000630
Igor Grinbergd09b1782011-11-07 01:13:59 +0000631 e.key = name;
632 e.data = NULL;
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600633 hsearch_r(e, FIND, &ep, &env_htab, 0);
wdenka68d3ed2002-10-11 08:38:32 +0000634
Macpaul Linf3c615b2011-04-26 16:16:45 +0000635 return ep ? ep->data : NULL;
wdenka68d3ed2002-10-11 08:38:32 +0000636 }
637
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200638 /* restricted capabilities before import */
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200639 if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0)
640 return (char *)(gd->env_buf);
641
642 return NULL;
wdenka68d3ed2002-10-11 08:38:32 +0000643}
644
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200645/*
646 * Look up variable from environment for restricted C runtime env.
647 */
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200648int getenv_f(const char *name, char *buf, unsigned len)
wdenka68d3ed2002-10-11 08:38:32 +0000649{
650 int i, nxt;
651
Igor Grinbergd09b1782011-11-07 01:13:59 +0000652 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
wdenka68d3ed2002-10-11 08:38:32 +0000653 int val, n;
654
Macpaul Linf3c615b2011-04-26 16:16:45 +0000655 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) {
656 if (nxt >= CONFIG_ENV_SIZE)
657 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000658 }
Macpaul Linf3c615b2011-04-26 16:16:45 +0000659
660 val = envmatch((uchar *)name, i);
661 if (val < 0)
wdenka68d3ed2002-10-11 08:38:32 +0000662 continue;
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200663
wdenka68d3ed2002-10-11 08:38:32 +0000664 /* found; copy out */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000665 for (n = 0; n < len; ++n, ++buf) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000666 *buf = env_get_char(val++);
667 if (*buf == '\0')
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200668 return n;
669 }
670
671 if (n)
672 *--buf = '\0';
673
Wolfgang Denka02a8842011-05-04 10:29:49 +0000674 printf("env_buf [%d bytes] too small for value of \"%s\"\n",
675 len, name);
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200676
677 return n;
wdenka68d3ed2002-10-11 08:38:32 +0000678 }
Igor Grinbergd09b1782011-11-07 01:13:59 +0000679
Macpaul Linf3c615b2011-04-26 16:16:45 +0000680 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000681}
682
Simon Glass4a9b4132011-10-14 13:25:18 +0000683/**
684 * Decode the integer value of an environment variable and return it.
685 *
686 * @param name Name of environemnt variable
687 * @param base Number base to use (normally 10, or 16 for hex)
688 * @param default_val Default value to return if the variable is not
689 * found
690 * @return the decoded value, or default_val if not found
691 */
692ulong getenv_ulong(const char *name, int base, ulong default_val)
693{
694 /*
695 * We can use getenv() here, even before relocation, since the
696 * environment variable value is an integer and thus short.
697 */
698 const char *str = getenv(name);
699
700 return str ? simple_strtoul(str, NULL, base) : default_val;
701}
702
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000703#ifndef CONFIG_SPL_BUILD
Mike Frysingerbdab39d2009-01-28 19:08:14 -0500704#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
Kim Phillips088f1b12012-10-29 13:34:31 +0000705static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc,
706 char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000707{
Macpaul Linf3c615b2011-04-26 16:16:45 +0000708 printf("Saving Environment to %s...\n", env_name_spec);
wdenka68d3ed2002-10-11 08:38:32 +0000709
Macpaul Linf3c615b2011-04-26 16:16:45 +0000710 return saveenv() ? 1 : 0;
wdenka68d3ed2002-10-11 08:38:32 +0000711}
wdenk8bde7f72003-06-27 21:31:46 +0000712
Mike Frysingerba69dc22008-12-30 02:59:25 -0500713U_BOOT_CMD(
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200714 saveenv, 1, 0, do_env_save,
Peter Tyser2fb26042009-01-27 18:03:12 -0600715 "save environment variables to persistent storage",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200716 ""
Mike Frysingerba69dc22008-12-30 02:59:25 -0500717);
wdenka68d3ed2002-10-11 08:38:32 +0000718#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000719#endif /* CONFIG_SPL_BUILD */
wdenka68d3ed2002-10-11 08:38:32 +0000720
721
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200722/*
wdenka68d3ed2002-10-11 08:38:32 +0000723 * Match a name / name=value pair
724 *
725 * s1 is either a simple 'name', or a 'name=value' pair.
726 * i2 is the environment index for a 'name2=value2' pair.
Igor Grinbergd09b1782011-11-07 01:13:59 +0000727 * If the names match, return the index for the value2, else -1.
wdenka68d3ed2002-10-11 08:38:32 +0000728 */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000729int envmatch(uchar *s1, int i2)
wdenka68d3ed2002-10-11 08:38:32 +0000730{
Joe Hershberger586197d2012-10-03 09:38:50 +0000731 if (s1 == NULL)
732 return -1;
733
wdenka68d3ed2002-10-11 08:38:32 +0000734 while (*s1 == env_get_char(i2++))
735 if (*s1++ == '=')
Macpaul Linf3c615b2011-04-26 16:16:45 +0000736 return i2;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000737
wdenka68d3ed2002-10-11 08:38:32 +0000738 if (*s1 == '\0' && env_get_char(i2-1) == '=')
Macpaul Linf3c615b2011-04-26 16:16:45 +0000739 return i2;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000740
Macpaul Linf3c615b2011-04-26 16:16:45 +0000741 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000742}
wdenk8bde7f72003-06-27 21:31:46 +0000743
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000744#ifndef CONFIG_SPL_BUILD
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000745static int do_env_default(cmd_tbl_t *cmdtp, int __flag,
Igor Grinbergd09b1782011-11-07 01:13:59 +0000746 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200747{
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000748 int all = 0, flag = 0;
Macpaul Linf3c615b2011-04-26 16:16:45 +0000749
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000750 debug("Initial value for argc=%d\n", argc);
751 while (--argc > 0 && **++argv == '-') {
752 char *arg = *argv;
753
754 while (*++arg) {
755 switch (*arg) {
756 case 'a': /* default all */
757 all = 1;
758 break;
759 case 'f': /* force */
760 flag |= H_FORCE;
761 break;
762 default:
763 return cmd_usage(cmdtp);
764 }
765 }
766 }
767 debug("Final value for argc=%d\n", argc);
768 if (all && (argc == 0)) {
769 /* Reset the whole environment */
770 set_default_env("## Resetting to default environment\n");
771 return 0;
772 }
773 if (!all && (argc > 0)) {
774 /* Reset individual variables */
775 set_default_vars(argc, argv);
776 return 0;
777 }
778
779 return cmd_usage(cmdtp);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200780}
wdenk8bde7f72003-06-27 21:31:46 +0000781
Igor Grinbergd09b1782011-11-07 01:13:59 +0000782static int do_env_delete(cmd_tbl_t *cmdtp, int flag,
783 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200784{
Joe Hershberger9d8d6612012-12-11 22:16:36 -0600785 int env_flag = H_INTERACTIVE;
786 int ret = 0;
787
788 debug("Initial value for argc=%d\n", argc);
789 while (argc > 1 && **(argv + 1) == '-') {
790 char *arg = *++argv;
791
792 --argc;
793 while (*++arg) {
794 switch (*arg) {
795 case 'f': /* force */
796 env_flag |= H_FORCE;
797 break;
798 default:
799 return CMD_RET_USAGE;
800 }
801 }
802 }
803 debug("Final value for argc=%d\n", argc);
804
805 env_id++;
806
807 while (--argc > 0) {
808 char *name = *++argv;
809
810 if (!hdelete_r(name, &env_htab, env_flag))
811 ret = 1;
812 }
813
814 return ret;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200815}
816
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500817#ifdef CONFIG_CMD_EXPORTENV
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200818/*
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100819 * env export [-t | -b | -c] [-s size] addr [var ...]
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200820 * -t: export as text format; if size is given, data will be
821 * padded with '\0' bytes; if not, one terminating '\0'
822 * will be added (which is included in the "filesize"
823 * setting so you can for exmple copy this to flash and
824 * keep the termination).
825 * -b: export as binary format (name=value pairs separated by
826 * '\0', list end marked by double "\0\0")
827 * -c: export as checksum protected environment format as
828 * used for example by "saveenv" command
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100829 * -s size:
830 * size of output buffer
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200831 * addr: memory address where environment gets stored
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100832 * var... List of variable names that get included into the
833 * export. Without arguments, the whole environment gets
834 * exported.
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200835 *
836 * With "-c" and size is NOT given, then the export command will
837 * format the data as currently used for the persistent storage,
838 * i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and
839 * prepend a valid CRC32 checksum and, in case of resundant
840 * environment, a "current" redundancy flag. If size is given, this
841 * value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32
842 * checksum and redundancy flag will be inserted.
843 *
844 * With "-b" and "-t", always only the real data (including a
845 * terminating '\0' byte) will be written; here the optional size
846 * argument will be used to make sure not to overflow the user
847 * provided buffer; the command will abort if the size is not
848 * sufficient. Any remainign space will be '\0' padded.
849 *
850 * On successful return, the variable "filesize" will be set.
851 * Note that filesize includes the trailing/terminating '\0' byte(s).
852 *
853 * Usage szenario: create a text snapshot/backup of the current settings:
854 *
855 * => env export -t 100000
856 * => era ${backup_addr} +${filesize}
857 * => cp.b 100000 ${backup_addr} ${filesize}
858 *
859 * Re-import this snapshot, deleting all other settings:
860 *
861 * => env import -d -t ${backup_addr}
862 */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000863static int do_env_export(cmd_tbl_t *cmdtp, int flag,
864 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200865{
866 char buf[32];
Simon Glassfd37dac2013-10-25 23:01:31 -0600867 ulong addr;
868 char *ptr, *cmd, *res;
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100869 size_t size = 0;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200870 ssize_t len;
871 env_t *envp;
872 char sep = '\n';
873 int chk = 0;
874 int fmt = 0;
875
876 cmd = *argv;
877
878 while (--argc > 0 && **++argv == '-') {
879 char *arg = *argv;
880 while (*++arg) {
881 switch (*arg) {
882 case 'b': /* raw binary format */
883 if (fmt++)
884 goto sep_err;
885 sep = '\0';
886 break;
887 case 'c': /* external checksum format */
888 if (fmt++)
889 goto sep_err;
890 sep = '\0';
891 chk = 1;
892 break;
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100893 case 's': /* size given */
894 if (--argc <= 0)
895 return cmd_usage(cmdtp);
896 size = simple_strtoul(*++argv, NULL, 16);
897 goto NXTARG;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200898 case 't': /* text format */
899 if (fmt++)
900 goto sep_err;
901 sep = '\n';
902 break;
903 default:
Simon Glass4c12eeb2011-12-10 08:44:01 +0000904 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200905 }
906 }
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100907NXTARG: ;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200908 }
909
Macpaul Linf3c615b2011-04-26 16:16:45 +0000910 if (argc < 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000911 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200912
Simon Glassfd37dac2013-10-25 23:01:31 -0600913 addr = simple_strtoul(argv[0], NULL, 16);
914 ptr = map_sysmem(addr, size);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200915
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100916 if (size)
Simon Glassfd37dac2013-10-25 23:01:31 -0600917 memset(ptr, '\0', size);
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100918
919 argc--;
920 argv++;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200921
922 if (sep) { /* export as text file */
Wolfgang Denkea009d42013-03-23 23:50:28 +0000923 len = hexport_r(&env_htab, sep,
924 H_MATCH_KEY | H_MATCH_IDENT,
Simon Glassfd37dac2013-10-25 23:01:31 -0600925 &ptr, size, argc, argv);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200926 if (len < 0) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000927 error("Cannot export environment: errno = %d\n", errno);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200928 return 1;
929 }
Andreas Bießmann8c3aff52011-02-09 15:10:29 +0100930 sprintf(buf, "%zX", (size_t)len);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200931 setenv("filesize", buf);
932
933 return 0;
934 }
935
Simon Glassfd37dac2013-10-25 23:01:31 -0600936 envp = (env_t *)ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200937
938 if (chk) /* export as checksum protected block */
939 res = (char *)envp->data;
940 else /* export as raw binary data */
Simon Glassfd37dac2013-10-25 23:01:31 -0600941 res = ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200942
Wolfgang Denkea009d42013-03-23 23:50:28 +0000943 len = hexport_r(&env_htab, '\0',
944 H_MATCH_KEY | H_MATCH_IDENT,
945 &res, ENV_SIZE, argc, argv);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200946 if (len < 0) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000947 error("Cannot export environment: errno = %d\n", errno);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200948 return 1;
949 }
950
951 if (chk) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000952 envp->crc = crc32(0, envp->data, ENV_SIZE);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200953#ifdef CONFIG_ENV_ADDR_REDUND
954 envp->flags = ACTIVE_FLAG;
955#endif
956 }
Simon Glass41ef3722013-02-24 17:33:22 +0000957 setenv_hex("filesize", len + offsetof(env_t, data));
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200958
959 return 0;
960
961sep_err:
Igor Grinbergd09b1782011-11-07 01:13:59 +0000962 printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", cmd);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200963 return 1;
964}
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500965#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200966
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500967#ifdef CONFIG_CMD_IMPORTENV
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200968/*
Alexander Hollerecd14462014-07-14 17:49:55 +0200969 * env import [-d] [-t [-r] | -b | -c] addr [size]
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200970 * -d: delete existing environment before importing;
971 * otherwise overwrite / append to existion definitions
972 * -t: assume text format; either "size" must be given or the
973 * text data must be '\0' terminated
Alexander Hollerecd14462014-07-14 17:49:55 +0200974 * -r: handle CRLF like LF, that means exported variables with
975 * a content which ends with \r won't get imported. Used
976 * to import text files created with editors which are using CRLF
977 * for line endings. Only effective in addition to -t.
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200978 * -b: assume binary format ('\0' separated, "\0\0" terminated)
979 * -c: assume checksum protected environment format
980 * addr: memory address to read from
981 * size: length of input data; if missing, proper '\0'
982 * termination is mandatory
983 */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000984static int do_env_import(cmd_tbl_t *cmdtp, int flag,
985 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200986{
Simon Glassfd37dac2013-10-25 23:01:31 -0600987 ulong addr;
988 char *cmd, *ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200989 char sep = '\n';
990 int chk = 0;
991 int fmt = 0;
992 int del = 0;
Alexander Hollerecd14462014-07-14 17:49:55 +0200993 int crlf_is_lf = 0;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200994 size_t size;
995
996 cmd = *argv;
997
998 while (--argc > 0 && **++argv == '-') {
999 char *arg = *argv;
1000 while (*++arg) {
1001 switch (*arg) {
1002 case 'b': /* raw binary format */
1003 if (fmt++)
1004 goto sep_err;
1005 sep = '\0';
1006 break;
1007 case 'c': /* external checksum format */
1008 if (fmt++)
1009 goto sep_err;
1010 sep = '\0';
1011 chk = 1;
1012 break;
1013 case 't': /* text format */
1014 if (fmt++)
1015 goto sep_err;
1016 sep = '\n';
1017 break;
Alexander Hollerecd14462014-07-14 17:49:55 +02001018 case 'r': /* handle CRLF like LF */
1019 crlf_is_lf = 1;
1020 break;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001021 case 'd':
1022 del = 1;
1023 break;
1024 default:
Simon Glass4c12eeb2011-12-10 08:44:01 +00001025 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001026 }
1027 }
1028 }
1029
Macpaul Linf3c615b2011-04-26 16:16:45 +00001030 if (argc < 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001031 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001032
1033 if (!fmt)
1034 printf("## Warning: defaulting to text format\n");
1035
Alexander Hollerecd14462014-07-14 17:49:55 +02001036 if (sep != '\n' && crlf_is_lf )
1037 crlf_is_lf = 0;
1038
Simon Glassfd37dac2013-10-25 23:01:31 -06001039 addr = simple_strtoul(argv[0], NULL, 16);
1040 ptr = map_sysmem(addr, 0);
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001041
1042 if (argc == 2) {
1043 size = simple_strtoul(argv[1], NULL, 16);
Tom Rini3775dcd2014-03-04 15:52:35 -05001044 } else if (argc == 1 && chk) {
1045 puts("## Error: external checksum format must pass size\n");
1046 return CMD_RET_FAILURE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001047 } else {
Simon Glassfd37dac2013-10-25 23:01:31 -06001048 char *s = ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001049
1050 size = 0;
1051
1052 while (size < MAX_ENV_SIZE) {
1053 if ((*s == sep) && (*(s+1) == '\0'))
1054 break;
1055 ++s;
1056 ++size;
1057 }
1058 if (size == MAX_ENV_SIZE) {
1059 printf("## Warning: Input data exceeds %d bytes"
1060 " - truncated\n", MAX_ENV_SIZE);
1061 }
Horst Kronstorferd3f80c72011-12-16 23:33:10 +00001062 size += 2;
Simon Glass79afc882011-11-04 06:42:36 +00001063 printf("## Info: input data size = %zu = 0x%zX\n", size, size);
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001064 }
1065
1066 if (chk) {
1067 uint32_t crc;
Simon Glassfd37dac2013-10-25 23:01:31 -06001068 env_t *ep = (env_t *)ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001069
1070 size -= offsetof(env_t, data);
1071 memcpy(&crc, &ep->crc, sizeof(crc));
1072
1073 if (crc32(0, ep->data, size) != crc) {
1074 puts("## Error: bad CRC, import failed\n");
1075 return 1;
1076 }
Simon Glassfd37dac2013-10-25 23:01:31 -06001077 ptr = (char *)ep->data;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001078 }
1079
Alexander Hollerecd14462014-07-14 17:49:55 +02001080 if (himport_r(&env_htab, ptr, size, sep, del ? 0 : H_NOCLEAR,
1081 crlf_is_lf, 0, NULL) == 0) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001082 error("Environment import failed: errno = %d\n", errno);
1083 return 1;
1084 }
1085 gd->flags |= GD_FLG_ENV_READY;
1086
1087 return 0;
1088
1089sep_err:
1090 printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n",
1091 cmd);
1092 return 1;
1093}
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001094#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001095
Andrew Ruder88733e22013-10-22 19:07:34 -05001096#if defined(CONFIG_CMD_ENV_EXISTS)
1097static int do_env_exists(cmd_tbl_t *cmdtp, int flag, int argc,
1098 char * const argv[])
1099{
1100 ENTRY e, *ep;
1101
1102 if (argc < 2)
1103 return CMD_RET_USAGE;
1104
1105 e.key = argv[1];
1106 e.data = NULL;
1107 hsearch_r(e, FIND, &ep, &env_htab, 0);
1108
1109 return (ep == NULL) ? 1 : 0;
1110}
1111#endif
1112
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001113/*
1114 * New command line interface: "env" command with subcommands
1115 */
1116static cmd_tbl_t cmd_env_sub[] = {
1117#if defined(CONFIG_CMD_ASKENV)
1118 U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""),
1119#endif
1120 U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""),
Joe Hershberger9d8d6612012-12-11 22:16:36 -06001121 U_BOOT_CMD_MKENT(delete, CONFIG_SYS_MAXARGS, 0, do_env_delete, "", ""),
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001122#if defined(CONFIG_CMD_EDITENV)
1123 U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""),
1124#endif
Joe Hershberger5e2b3e02012-12-11 22:16:25 -06001125#if defined(CONFIG_CMD_ENV_CALLBACK)
1126 U_BOOT_CMD_MKENT(callbacks, 1, 0, do_env_callback, "", ""),
1127#endif
Joe Hershbergerfffad712012-12-11 22:16:33 -06001128#if defined(CONFIG_CMD_ENV_FLAGS)
1129 U_BOOT_CMD_MKENT(flags, 1, 0, do_env_flags, "", ""),
1130#endif
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001131#if defined(CONFIG_CMD_EXPORTENV)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001132 U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""),
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001133#endif
Kim Phillipsa000b792011-04-05 07:15:14 +00001134#if defined(CONFIG_CMD_GREPENV)
1135 U_BOOT_CMD_MKENT(grep, CONFIG_SYS_MAXARGS, 1, do_env_grep, "", ""),
1136#endif
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001137#if defined(CONFIG_CMD_IMPORTENV)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001138 U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""),
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001139#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001140 U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""),
1141#if defined(CONFIG_CMD_RUN)
1142 U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""),
1143#endif
1144#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
1145 U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""),
1146#endif
1147 U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""),
Andrew Ruder88733e22013-10-22 19:07:34 -05001148#if defined(CONFIG_CMD_ENV_EXISTS)
1149 U_BOOT_CMD_MKENT(exists, 2, 0, do_env_exists, "", ""),
1150#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001151};
1152
Wolfgang Denk2e5167c2010-10-28 20:00:11 +02001153#if defined(CONFIG_NEEDS_MANUAL_RELOC)
Heiko Schocher60f7da12010-10-05 14:17:00 +02001154void env_reloc(void)
1155{
1156 fixup_cmdtable(cmd_env_sub, ARRAY_SIZE(cmd_env_sub));
1157}
1158#endif
1159
Macpaul Linf3c615b2011-04-26 16:16:45 +00001160static int do_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001161{
1162 cmd_tbl_t *cp;
1163
Thomas Weber5904da02010-11-24 13:07:52 +01001164 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001165 return CMD_RET_USAGE;
Thomas Weber5904da02010-11-24 13:07:52 +01001166
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001167 /* drop initial "env" arg */
1168 argc--;
1169 argv++;
1170
1171 cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub));
1172
1173 if (cp)
1174 return cp->cmd(cmdtp, flag, argc, argv);
1175
Simon Glass4c12eeb2011-12-10 08:44:01 +00001176 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001177}
1178
Kim Phillips088f1b12012-10-29 13:34:31 +00001179#ifdef CONFIG_SYS_LONGHELP
1180static char env_help_text[] =
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001181#if defined(CONFIG_CMD_ASKENV)
1182 "ask name [message] [size] - ask for environment variable\nenv "
1183#endif
Joe Hershberger5e2b3e02012-12-11 22:16:25 -06001184#if defined(CONFIG_CMD_ENV_CALLBACK)
1185 "callbacks - print callbacks and their associated variables\nenv "
1186#endif
Gerlando Falautob64b7c32012-08-24 00:11:41 +00001187 "default [-f] -a - [forcibly] reset default environment\n"
1188 "env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n"
Joe Hershberger9d8d6612012-12-11 22:16:36 -06001189 "env delete [-f] var [...] - [forcibly] delete variable(s)\n"
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001190#if defined(CONFIG_CMD_EDITENV)
1191 "env edit name - edit environment variable\n"
1192#endif
Andrew Ruder88733e22013-10-22 19:07:34 -05001193#if defined(CONFIG_CMD_ENV_EXISTS)
1194 "env exists name - tests for existence of variable\n"
1195#endif
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001196#if defined(CONFIG_CMD_EXPORTENV)
Wolfgang Denk37f2fe72011-11-06 22:49:44 +01001197 "env export [-t | -b | -c] [-s size] addr [var ...] - export environment\n"
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001198#endif
Joe Hershbergerfffad712012-12-11 22:16:33 -06001199#if defined(CONFIG_CMD_ENV_FLAGS)
1200 "env flags - print variables that have non-default flags\n"
1201#endif
Kim Phillipsa000b792011-04-05 07:15:14 +00001202#if defined(CONFIG_CMD_GREPENV)
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001203#ifdef CONFIG_REGEX
1204 "env grep [-e] [-n | -v | -b] string [...] - search environment\n"
1205#else
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001206 "env grep [-n | -v | -b] string [...] - search environment\n"
Kim Phillipsa000b792011-04-05 07:15:14 +00001207#endif
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001208#endif
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001209#if defined(CONFIG_CMD_IMPORTENV)
Alexander Hollerecd14462014-07-14 17:49:55 +02001210 "env import [-d] [-t [-r] | -b | -c] addr [size] - import environment\n"
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001211#endif
Joe Hershbergerbe112352012-12-11 22:16:23 -06001212 "env print [-a | name ...] - print environment\n"
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001213#if defined(CONFIG_CMD_RUN)
1214 "env run var [...] - run commands in an environment variable\n"
1215#endif
Horst Kronstorferd798a9b2011-12-10 02:25:19 +00001216#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001217 "env save - save environment\n"
Horst Kronstorferd798a9b2011-12-10 02:25:19 +00001218#endif
Kim Phillips088f1b12012-10-29 13:34:31 +00001219 "env set [-f] name [arg ...]\n";
1220#endif
1221
1222U_BOOT_CMD(
1223 env, CONFIG_SYS_MAXARGS, 1, do_env,
1224 "environment handling commands", env_help_text
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001225);
1226
1227/*
1228 * Old command line interface, kept for compatibility
1229 */
wdenk8bde7f72003-06-27 21:31:46 +00001230
Peter Tyser246c6922009-10-25 15:12:56 -05001231#if defined(CONFIG_CMD_EDITENV)
Mike Frysinger722b0612010-10-20 03:52:39 -04001232U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001233 editenv, 2, 0, do_env_edit,
Peter Tyser246c6922009-10-25 15:12:56 -05001234 "edit environment variable",
1235 "name\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001236 " - edit environment variable 'name'",
1237 var_complete
Peter Tyser246c6922009-10-25 15:12:56 -05001238);
1239#endif
1240
Mike Frysinger722b0612010-10-20 03:52:39 -04001241U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001242 printenv, CONFIG_SYS_MAXARGS, 1, do_env_print,
Peter Tyser2fb26042009-01-27 18:03:12 -06001243 "print environment variables",
Joe Hershbergerbe112352012-12-11 22:16:23 -06001244 "[-a]\n - print [all] values of all environment variables\n"
wdenk8bde7f72003-06-27 21:31:46 +00001245 "printenv name ...\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001246 " - print value of environment variable 'name'",
1247 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001248);
1249
Kim Phillipsa000b792011-04-05 07:15:14 +00001250#ifdef CONFIG_CMD_GREPENV
1251U_BOOT_CMD_COMPLETE(
1252 grepenv, CONFIG_SYS_MAXARGS, 0, do_env_grep,
1253 "search environment variables",
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001254#ifdef CONFIG_REGEX
1255 "[-e] [-n | -v | -b] string ...\n"
1256#else
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001257 "[-n | -v | -b] string ...\n"
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001258#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001259 " - list environment name=value pairs matching 'string'\n"
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001260#ifdef CONFIG_REGEX
1261 " \"-e\": enable regular expressions;\n"
1262#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001263 " \"-n\": search variable names; \"-v\": search values;\n"
1264 " \"-b\": search both names and values (default)",
Kim Phillipsa000b792011-04-05 07:15:14 +00001265 var_complete
1266);
1267#endif
1268
Mike Frysinger722b0612010-10-20 03:52:39 -04001269U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001270 setenv, CONFIG_SYS_MAXARGS, 0, do_env_set,
Peter Tyser2fb26042009-01-27 18:03:12 -06001271 "set environment variables",
Joe Hershberger24ab5a12012-12-11 22:16:35 -06001272 "[-f] name value ...\n"
1273 " - [forcibly] set environment variable 'name' to 'value ...'\n"
1274 "setenv [-f] name\n"
1275 " - [forcibly] delete environment variable 'name'",
Mike Frysinger722b0612010-10-20 03:52:39 -04001276 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001277);
1278
Jon Loeligerc76fe472007-07-08 18:02:23 -05001279#if defined(CONFIG_CMD_ASKENV)
wdenk8bde7f72003-06-27 21:31:46 +00001280
wdenk0d498392003-07-01 21:06:45 +00001281U_BOOT_CMD(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001282 askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask,
Peter Tyser2fb26042009-01-27 18:03:12 -06001283 "get environment variables from stdin",
wdenk8bde7f72003-06-27 21:31:46 +00001284 "name [message] [size]\n"
Wolfgang Denk7d855912013-02-20 04:53:16 +00001285 " - get environment variable 'name' from stdin (max 'size' chars)"
wdenk8bde7f72003-06-27 21:31:46 +00001286);
Jon Loeliger90253172007-07-10 11:02:44 -05001287#endif
wdenk8bde7f72003-06-27 21:31:46 +00001288
Jon Loeligerc76fe472007-07-08 18:02:23 -05001289#if defined(CONFIG_CMD_RUN)
Mike Frysinger722b0612010-10-20 03:52:39 -04001290U_BOOT_CMD_COMPLETE(
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001291 run, CONFIG_SYS_MAXARGS, 1, do_run,
Peter Tyser2fb26042009-01-27 18:03:12 -06001292 "run commands in an environment variable",
wdenk8bde7f72003-06-27 21:31:46 +00001293 "var [...]\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001294 " - run the commands in the environment variable(s) 'var'",
1295 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001296);
Jon Loeliger90253172007-07-10 11:02:44 -05001297#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +00001298#endif /* CONFIG_SPL_BUILD */