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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) && \
Stuart Longlandfd1000b2016-02-23 15:51:26 +100048 !defined(CONFIG_ENV_IS_IN_EXT4) && \
Macpaul Linf3c615b2011-04-26 16:16:45 +000049 !defined(CONFIG_ENV_IS_IN_NAND) && \
50 !defined(CONFIG_ENV_IS_IN_NVRAM) && \
51 !defined(CONFIG_ENV_IS_IN_ONENAND) && \
52 !defined(CONFIG_ENV_IS_IN_SPI_FLASH) && \
Liu Gang0a85a9e2012-03-08 00:33:20 +000053 !defined(CONFIG_ENV_IS_IN_REMOTE) && \
Joe Hershberger2b744332013-04-08 10:32:51 +000054 !defined(CONFIG_ENV_IS_IN_UBI) && \
Macpaul Linf3c615b2011-04-26 16:16:45 +000055 !defined(CONFIG_ENV_IS_NOWHERE)
unsik Kim75eb82e2009-02-25 11:31:24 +090056# error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|ONENAND|\
Stuart Longlandfd1000b2016-02-23 15:51:26 +100057SPI_FLASH|NVRAM|MMC|FAT|EXT4|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE
wdenka68d3ed2002-10-11 08:38:32 +000058#endif
59
Wolfgang Denkea882ba2010-06-20 23:33:59 +020060/*
61 * Maximum expected input data size for import command
62 */
63#define MAX_ENV_SIZE (1 << 20) /* 1 MiB */
wdenka68d3ed2002-10-11 08:38:32 +000064
wdenka68d3ed2002-10-11 08:38:32 +000065/*
Wolfgang Denkea882ba2010-06-20 23:33:59 +020066 * This variable is incremented on each do_env_set(), so it can
Heiko Schocherda954272009-04-28 08:36:11 +020067 * be used via get_env_id() as an indication, if the environment
68 * has changed or not. So it is possible to reread an environment
69 * variable only if the environment was changed ... done so for
70 * example in NetInitLoop()
71 */
Heiko Schocher2f70c492009-02-10 09:38:52 +010072static int env_id = 1;
wdenka68d3ed2002-10-11 08:38:32 +000073
Macpaul Linf3c615b2011-04-26 16:16:45 +000074int get_env_id(void)
Heiko Schocher2f70c492009-02-10 09:38:52 +010075{
76 return env_id;
77}
wdenka68d3ed2002-10-11 08:38:32 +000078
Ilya Yanok7ac2fe22012-09-18 00:22:50 +000079#ifndef CONFIG_SPL_BUILD
Mike Frysinger4c94f6c2009-05-24 02:26:19 -040080/*
Wolfgang Denkea882ba2010-06-20 23:33:59 +020081 * Command interface: print one or all environment variables
82 *
83 * Returns 0 in case of error, or length of printed string
Mike Frysinger4c94f6c2009-05-24 02:26:19 -040084 */
Joe Hershbergerbe112352012-12-11 22:16:23 -060085static int env_print(char *name, int flag)
wdenka68d3ed2002-10-11 08:38:32 +000086{
Wolfgang Denkea882ba2010-06-20 23:33:59 +020087 char *res = NULL;
Maxime Larocque22a4a6c2012-09-28 05:00:13 +000088 ssize_t len;
wdenka68d3ed2002-10-11 08:38:32 +000089
Wolfgang Denkea882ba2010-06-20 23:33:59 +020090 if (name) { /* print a single name */
91 ENTRY e, *ep;
wdenka68d3ed2002-10-11 08:38:32 +000092
Wolfgang Denkea882ba2010-06-20 23:33:59 +020093 e.key = name;
94 e.data = NULL;
Joe Hershbergerbe112352012-12-11 22:16:23 -060095 hsearch_r(e, FIND, &ep, &env_htab, flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +020096 if (ep == NULL)
97 return 0;
Macpaul Linf3c615b2011-04-26 16:16:45 +000098 len = printf("%s=%s\n", ep->key, ep->data);
Wolfgang Denkea882ba2010-06-20 23:33:59 +020099 return len;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400100 }
wdenka68d3ed2002-10-11 08:38:32 +0000101
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200102 /* print whole list */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600103 len = hexport_r(&env_htab, '\n', flag, &res, 0, 0, NULL);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200104
105 if (len > 0) {
106 puts(res);
107 free(res);
108 return len;
109 }
110
111 /* should never happen */
Maxime Larocque22a4a6c2012-09-28 05:00:13 +0000112 printf("## Error: cannot export environment\n");
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200113 return 0;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400114}
115
Kim Phillips088f1b12012-10-29 13:34:31 +0000116static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc,
117 char * const argv[])
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400118{
119 int i;
120 int rcode = 0;
Joe Hershbergerbe112352012-12-11 22:16:23 -0600121 int env_flag = H_HIDE_DOT;
122
123 if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') {
124 argc--;
125 argv++;
126 env_flag &= ~H_HIDE_DOT;
127 }
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400128
129 if (argc == 1) {
130 /* print all env vars */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600131 rcode = env_print(NULL, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200132 if (!rcode)
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400133 return 1;
134 printf("\nEnvironment size: %d/%ld bytes\n",
135 rcode, (ulong)ENV_SIZE);
wdenka68d3ed2002-10-11 08:38:32 +0000136 return 0;
137 }
138
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400139 /* print selected env vars */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600140 env_flag &= ~H_HIDE_DOT;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400141 for (i = 1; i < argc; ++i) {
Joe Hershbergerbe112352012-12-11 22:16:23 -0600142 int rc = env_print(argv[i], env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200143 if (!rc) {
144 printf("## Error: \"%s\" not defined\n", argv[i]);
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400145 ++rcode;
wdenka68d3ed2002-10-11 08:38:32 +0000146 }
147 }
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400148
wdenka68d3ed2002-10-11 08:38:32 +0000149 return rcode;
150}
151
Kim Phillipsa000b792011-04-05 07:15:14 +0000152#ifdef CONFIG_CMD_GREPENV
Igor Grinbergd09b1782011-11-07 01:13:59 +0000153static int do_env_grep(cmd_tbl_t *cmdtp, int flag,
154 int argc, char * const argv[])
Kim Phillipsa000b792011-04-05 07:15:14 +0000155{
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000156 char *res = NULL;
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000157 int len, grep_how, grep_what;
Kim Phillipsa000b792011-04-05 07:15:14 +0000158
159 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000160 return CMD_RET_USAGE;
Kim Phillipsa000b792011-04-05 07:15:14 +0000161
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000162 grep_how = H_MATCH_SUBSTR; /* default: substring search */
163 grep_what = H_MATCH_BOTH; /* default: grep names and values */
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000164
Pierre Aubert9a832332013-10-08 14:20:27 +0200165 while (--argc > 0 && **++argv == '-') {
166 char *arg = *argv;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000167 while (*++arg) {
168 switch (*arg) {
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000169#ifdef CONFIG_REGEX
170 case 'e': /* use regex matching */
171 grep_how = H_MATCH_REGEX;
172 break;
173#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000174 case 'n': /* grep for name */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000175 grep_what = H_MATCH_KEY;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000176 break;
177 case 'v': /* grep for value */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000178 grep_what = H_MATCH_DATA;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000179 break;
180 case 'b': /* grep for both */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000181 grep_what = H_MATCH_BOTH;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000182 break;
183 case '-':
184 goto DONE;
185 default:
186 return CMD_RET_USAGE;
187 }
188 }
189 }
190
191DONE:
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000192 len = hexport_r(&env_htab, '\n',
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000193 flag | grep_what | grep_how,
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000194 &res, 0, argc, argv);
Kim Phillipsa000b792011-04-05 07:15:14 +0000195
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000196 if (len > 0) {
197 puts(res);
198 free(res);
Kim Phillipsa000b792011-04-05 07:15:14 +0000199 }
200
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000201 if (len < 2)
202 return 1;
203
204 return 0;
Kim Phillipsa000b792011-04-05 07:15:14 +0000205}
206#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000207#endif /* CONFIG_SPL_BUILD */
Kim Phillipsa000b792011-04-05 07:15:14 +0000208
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200209/*
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000210 * Set a new environment variable,
211 * or replace or delete an existing one.
Joe Hershberger25980902012-12-11 22:16:31 -0600212 */
Joe Hershberger94b467b2015-05-20 14:27:21 -0500213static int _do_env_set(int flag, int argc, char * const argv[], int env_flag)
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000214{
215 int i, len;
216 char *name, *value, *s;
217 ENTRY e, *ep;
218
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600219 debug("Initial value for argc=%d\n", argc);
220 while (argc > 1 && **(argv + 1) == '-') {
221 char *arg = *++argv;
222
223 --argc;
224 while (*++arg) {
225 switch (*arg) {
226 case 'f': /* force */
227 env_flag |= H_FORCE;
228 break;
229 default:
230 return CMD_RET_USAGE;
231 }
232 }
233 }
234 debug("Final value for argc=%d\n", argc);
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000235 name = argv[1];
236 value = argv[2];
237
238 if (strchr(name, '=')) {
239 printf("## Error: illegal character '='"
240 "in variable name \"%s\"\n", name);
241 return 1;
242 }
243
244 env_id++;
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000245
wdenka68d3ed2002-10-11 08:38:32 +0000246 /* Delete only ? */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000247 if (argc < 3 || argv[2] == NULL) {
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600248 int rc = hdelete_r(name, &env_htab, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200249 return !rc;
wdenka68d3ed2002-10-11 08:38:32 +0000250 }
251
252 /*
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200253 * Insert / replace new value
wdenka68d3ed2002-10-11 08:38:32 +0000254 */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000255 for (i = 2, len = 0; i < argc; ++i)
wdenka68d3ed2002-10-11 08:38:32 +0000256 len += strlen(argv[i]) + 1;
Macpaul Linf3c615b2011-04-26 16:16:45 +0000257
258 value = malloc(len);
259 if (value == NULL) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200260 printf("## Can't malloc %d bytes\n", len);
wdenka68d3ed2002-10-11 08:38:32 +0000261 return 1;
262 }
Macpaul Linf3c615b2011-04-26 16:16:45 +0000263 for (i = 2, s = value; i < argc; ++i) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200264 char *v = argv[i];
wdenka68d3ed2002-10-11 08:38:32 +0000265
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200266 while ((*s++ = *v++) != '\0')
wdenka68d3ed2002-10-11 08:38:32 +0000267 ;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000268 *(s - 1) = ' ';
wdenka68d3ed2002-10-11 08:38:32 +0000269 }
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200270 if (s != value)
271 *--s = '\0';
wdenka68d3ed2002-10-11 08:38:32 +0000272
Igor Grinbergd09b1782011-11-07 01:13:59 +0000273 e.key = name;
274 e.data = value;
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600275 hsearch_r(e, ENTER, &ep, &env_htab, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200276 free(value);
277 if (!ep) {
278 printf("## Error inserting \"%s\" variable, errno=%d\n",
279 name, errno);
280 return 1;
281 }
wdenka68d3ed2002-10-11 08:38:32 +0000282
wdenka68d3ed2002-10-11 08:38:32 +0000283 return 0;
284}
285
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200286int setenv(const char *varname, const char *varvalue)
wdenka68d3ed2002-10-11 08:38:32 +0000287{
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200288 const char * const argv[4] = { "setenv", varname, varvalue, NULL };
289
Joe Hershbergera7eb1d62013-04-08 10:32:50 +0000290 /* before import into hashtable */
291 if (!(gd->flags & GD_FLG_ENV_READY))
292 return 1;
293
Igor Grinbergd09b1782011-11-07 01:13:59 +0000294 if (varvalue == NULL || varvalue[0] == '\0')
Joe Hershberger94b467b2015-05-20 14:27:21 -0500295 return _do_env_set(0, 2, (char * const *)argv, H_PROGRAMMATIC);
Jeffrey Mann9ffd4512007-04-23 14:00:11 +0200296 else
Joe Hershberger94b467b2015-05-20 14:27:21 -0500297 return _do_env_set(0, 3, (char * const *)argv, H_PROGRAMMATIC);
wdenka68d3ed2002-10-11 08:38:32 +0000298}
299
Simon Glassd67f10c2011-10-24 17:59:59 +0000300/**
301 * Set an environment variable to an integer value
302 *
Simon Glass96022862013-05-07 06:11:45 +0000303 * @param varname Environment variable to set
Simon Glassd67f10c2011-10-24 17:59:59 +0000304 * @param value Value to set it to
305 * @return 0 if ok, 1 on error
306 */
307int setenv_ulong(const char *varname, ulong value)
308{
309 /* TODO: this should be unsigned */
310 char *str = simple_itoa(value);
311
312 return setenv(varname, str);
313}
314
315/**
Simon Glassbfc59962013-02-24 17:33:21 +0000316 * Set an environment variable to an value in hex
Simon Glassd67f10c2011-10-24 17:59:59 +0000317 *
Simon Glass96022862013-05-07 06:11:45 +0000318 * @param varname Environment variable to set
Simon Glassbfc59962013-02-24 17:33:21 +0000319 * @param value Value to set it to
Simon Glassd67f10c2011-10-24 17:59:59 +0000320 * @return 0 if ok, 1 on error
321 */
Simon Glassbfc59962013-02-24 17:33:21 +0000322int setenv_hex(const char *varname, ulong value)
Simon Glassd67f10c2011-10-24 17:59:59 +0000323{
324 char str[17];
325
Simon Glassbfc59962013-02-24 17:33:21 +0000326 sprintf(str, "%lx", value);
Simon Glassd67f10c2011-10-24 17:59:59 +0000327 return setenv(varname, str);
328}
329
Simon Glass76b8f792013-04-20 08:42:43 +0000330ulong getenv_hex(const char *varname, ulong default_val)
331{
332 const char *s;
333 ulong value;
334 char *endp;
335
336 s = getenv(varname);
337 if (s)
338 value = simple_strtoul(s, &endp, 16);
339 if (!s || endp == s)
340 return default_val;
341
342 return value;
343}
344
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000345#ifndef CONFIG_SPL_BUILD
Kim Phillips088f1b12012-10-29 13:34:31 +0000346static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000347{
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200348 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000349 return CMD_RET_USAGE;
wdenka68d3ed2002-10-11 08:38:32 +0000350
Joe Hershberger94b467b2015-05-20 14:27:21 -0500351 return _do_env_set(flag, argc, argv, H_INTERACTIVE);
wdenka68d3ed2002-10-11 08:38:32 +0000352}
353
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200354/*
wdenka68d3ed2002-10-11 08:38:32 +0000355 * Prompt for environment variable
356 */
Jon Loeligerc76fe472007-07-08 18:02:23 -0500357#if defined(CONFIG_CMD_ASKENV)
Macpaul Linf3c615b2011-04-26 16:16:45 +0000358int do_env_ask(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000359{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200360 char message[CONFIG_SYS_CBSIZE];
Wolfgang Denk7d855912013-02-20 04:53:16 +0000361 int i, len, pos, size;
wdenka68d3ed2002-10-11 08:38:32 +0000362 char *local_args[4];
Wolfgang Denk7d855912013-02-20 04:53:16 +0000363 char *endptr;
wdenka68d3ed2002-10-11 08:38:32 +0000364
365 local_args[0] = argv[0];
366 local_args[1] = argv[1];
367 local_args[2] = NULL;
368 local_args[3] = NULL;
369
Wolfgang Denk7d855912013-02-20 04:53:16 +0000370 /*
371 * Check the syntax:
372 *
373 * env_ask envname [message1 ...] [size]
374 */
375 if (argc == 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000376 return CMD_RET_USAGE;
wdenka68d3ed2002-10-11 08:38:32 +0000377
Wolfgang Denk7d855912013-02-20 04:53:16 +0000378 /*
379 * We test the last argument if it can be converted
380 * into a decimal number. If yes, we assume it's
381 * the size. Otherwise we echo it as part of the
382 * message.
383 */
384 i = simple_strtoul(argv[argc - 1], &endptr, 10);
385 if (*endptr != '\0') { /* no size */
386 size = CONFIG_SYS_CBSIZE - 1;
387 } else { /* size given */
388 size = i;
389 --argc;
390 }
wdenka68d3ed2002-10-11 08:38:32 +0000391
Wolfgang Denk7d855912013-02-20 04:53:16 +0000392 if (argc <= 2) {
393 sprintf(message, "Please enter '%s': ", argv[1]);
394 } else {
395 /* env_ask envname message1 ... messagen [size] */
396 for (i = 2, pos = 0; i < argc; i++) {
Macpaul Linf3c615b2011-04-26 16:16:45 +0000397 if (pos)
wdenka68d3ed2002-10-11 08:38:32 +0000398 message[pos++] = ' ';
Macpaul Linf3c615b2011-04-26 16:16:45 +0000399
Igor Grinbergd09b1782011-11-07 01:13:59 +0000400 strcpy(message + pos, argv[i]);
wdenka68d3ed2002-10-11 08:38:32 +0000401 pos += strlen(argv[i]);
402 }
Wolfgang Denk7d855912013-02-20 04:53:16 +0000403 message[pos++] = ' ';
wdenka68d3ed2002-10-11 08:38:32 +0000404 message[pos] = '\0';
wdenka68d3ed2002-10-11 08:38:32 +0000405 }
406
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200407 if (size >= CONFIG_SYS_CBSIZE)
408 size = CONFIG_SYS_CBSIZE - 1;
wdenka68d3ed2002-10-11 08:38:32 +0000409
410 if (size <= 0)
411 return 1;
412
413 /* prompt for input */
Simon Glasse1bf8242014-04-10 20:01:27 -0600414 len = cli_readline(message);
wdenka68d3ed2002-10-11 08:38:32 +0000415
416 if (size < len)
417 console_buffer[size] = '\0';
418
419 len = 2;
420 if (console_buffer[0] != '\0') {
421 local_args[2] = console_buffer;
422 len = 3;
423 }
424
425 /* Continue calling setenv code */
Joe Hershberger94b467b2015-05-20 14:27:21 -0500426 return _do_env_set(flag, len, local_args, H_INTERACTIVE);
wdenka68d3ed2002-10-11 08:38:32 +0000427}
Jon Loeliger90253172007-07-10 11:02:44 -0500428#endif
wdenka68d3ed2002-10-11 08:38:32 +0000429
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600430#if defined(CONFIG_CMD_ENV_CALLBACK)
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500431static int print_static_binding(const char *var_name, const char *callback_name,
432 void *priv)
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600433{
434 printf("\t%-20s %-20s\n", var_name, callback_name);
435
436 return 0;
437}
438
439static int print_active_callback(ENTRY *entry)
440{
441 struct env_clbk_tbl *clbkp;
442 int i;
443 int num_callbacks;
444
445 if (entry->callback == NULL)
446 return 0;
447
448 /* look up the callback in the linker-list */
449 num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
450 for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
451 i < num_callbacks;
452 i++, clbkp++) {
453#if defined(CONFIG_NEEDS_MANUAL_RELOC)
454 if (entry->callback == clbkp->callback + gd->reloc_off)
455#else
456 if (entry->callback == clbkp->callback)
457#endif
458 break;
459 }
460
461 if (i == num_callbacks)
462 /* this should probably never happen, but just in case... */
463 printf("\t%-20s %p\n", entry->key, entry->callback);
464 else
465 printf("\t%-20s %-20s\n", entry->key, clbkp->name);
466
467 return 0;
468}
469
470/*
471 * Print the callbacks available and what they are bound to
472 */
473int do_env_callback(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
474{
475 struct env_clbk_tbl *clbkp;
476 int i;
477 int num_callbacks;
478
479 /* Print the available callbacks */
480 puts("Available callbacks:\n");
481 puts("\tCallback Name\n");
482 puts("\t-------------\n");
483 num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
484 for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
485 i < num_callbacks;
486 i++, clbkp++)
487 printf("\t%s\n", clbkp->name);
488 puts("\n");
489
490 /* Print the static bindings that may exist */
491 puts("Static callback bindings:\n");
492 printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
493 printf("\t%-20s %-20s\n", "-------------", "-------------");
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500494 env_attr_walk(ENV_CALLBACK_LIST_STATIC, print_static_binding, NULL);
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600495 puts("\n");
496
497 /* walk through each variable and print the callback if it has one */
498 puts("Active callback bindings:\n");
499 printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
500 printf("\t%-20s %-20s\n", "-------------", "-------------");
501 hwalk_r(&env_htab, print_active_callback);
502 return 0;
503}
504#endif
505
Joe Hershbergerfffad712012-12-11 22:16:33 -0600506#if defined(CONFIG_CMD_ENV_FLAGS)
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500507static int print_static_flags(const char *var_name, const char *flags,
508 void *priv)
Joe Hershbergerfffad712012-12-11 22:16:33 -0600509{
510 enum env_flags_vartype type = env_flags_parse_vartype(flags);
Joe Hershberger267541f2012-12-11 22:16:34 -0600511 enum env_flags_varaccess access = env_flags_parse_varaccess(flags);
Joe Hershbergerfffad712012-12-11 22:16:33 -0600512
Joe Hershberger267541f2012-12-11 22:16:34 -0600513 printf("\t%-20s %-20s %-20s\n", var_name,
514 env_flags_get_vartype_name(type),
515 env_flags_get_varaccess_name(access));
Joe Hershbergerfffad712012-12-11 22:16:33 -0600516
517 return 0;
518}
519
520static int print_active_flags(ENTRY *entry)
521{
522 enum env_flags_vartype type;
Joe Hershberger267541f2012-12-11 22:16:34 -0600523 enum env_flags_varaccess access;
Joe Hershbergerfffad712012-12-11 22:16:33 -0600524
525 if (entry->flags == 0)
526 return 0;
527
528 type = (enum env_flags_vartype)
529 (entry->flags & ENV_FLAGS_VARTYPE_BIN_MASK);
Joe Hershberger267541f2012-12-11 22:16:34 -0600530 access = env_flags_parse_varaccess_from_binflags(entry->flags);
531 printf("\t%-20s %-20s %-20s\n", entry->key,
532 env_flags_get_vartype_name(type),
533 env_flags_get_varaccess_name(access));
Joe Hershbergerfffad712012-12-11 22:16:33 -0600534
535 return 0;
536}
537
538/*
539 * Print the flags available and what variables have flags
540 */
541int do_env_flags(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
542{
543 /* Print the available variable types */
544 printf("Available variable type flags (position %d):\n",
545 ENV_FLAGS_VARTYPE_LOC);
546 puts("\tFlag\tVariable Type Name\n");
547 puts("\t----\t------------------\n");
548 env_flags_print_vartypes();
549 puts("\n");
550
Joe Hershberger267541f2012-12-11 22:16:34 -0600551 /* Print the available variable access types */
552 printf("Available variable access flags (position %d):\n",
553 ENV_FLAGS_VARACCESS_LOC);
554 puts("\tFlag\tVariable Access Name\n");
555 puts("\t----\t--------------------\n");
556 env_flags_print_varaccess();
557 puts("\n");
558
Joe Hershbergerfffad712012-12-11 22:16:33 -0600559 /* Print the static flags that may exist */
560 puts("Static flags:\n");
Joe Hershberger267541f2012-12-11 22:16:34 -0600561 printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type",
562 "Variable Access");
563 printf("\t%-20s %-20s %-20s\n", "-------------", "-------------",
564 "---------------");
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500565 env_attr_walk(ENV_FLAGS_LIST_STATIC, print_static_flags, NULL);
Joe Hershbergerfffad712012-12-11 22:16:33 -0600566 puts("\n");
567
568 /* walk through each variable and print the flags if non-default */
569 puts("Active flags:\n");
Joe Hershberger267541f2012-12-11 22:16:34 -0600570 printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type",
571 "Variable Access");
572 printf("\t%-20s %-20s %-20s\n", "-------------", "-------------",
573 "---------------");
Joe Hershbergerfffad712012-12-11 22:16:33 -0600574 hwalk_r(&env_htab, print_active_flags);
575 return 0;
576}
577#endif
578
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200579/*
Peter Tyser246c6922009-10-25 15:12:56 -0500580 * Interactively edit an environment variable
581 */
582#if defined(CONFIG_CMD_EDITENV)
Kim Phillips088f1b12012-10-29 13:34:31 +0000583static int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc,
584 char * const argv[])
Peter Tyser246c6922009-10-25 15:12:56 -0500585{
586 char buffer[CONFIG_SYS_CBSIZE];
587 char *init_val;
Peter Tyser246c6922009-10-25 15:12:56 -0500588
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200589 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000590 return CMD_RET_USAGE;
Peter Tyser246c6922009-10-25 15:12:56 -0500591
Joe Hershberger94b467b2015-05-20 14:27:21 -0500592 /* before import into hashtable */
593 if (!(gd->flags & GD_FLG_ENV_READY))
594 return 1;
595
Peter Tyser246c6922009-10-25 15:12:56 -0500596 /* Set read buffer to initial value or empty sting */
597 init_val = getenv(argv[1]);
598 if (init_val)
Peng Fan5d49b4c2015-12-23 12:08:09 +0800599 snprintf(buffer, CONFIG_SYS_CBSIZE, "%s", init_val);
Peter Tyser246c6922009-10-25 15:12:56 -0500600 else
601 buffer[0] = '\0';
602
Simon Glasse1bf8242014-04-10 20:01:27 -0600603 if (cli_readline_into_buffer("edit: ", buffer, 0) < 0)
Joe Hershberger18a3cce2013-02-08 10:12:34 +0000604 return 1;
Peter Tyser246c6922009-10-25 15:12:56 -0500605
Joe Hershberger94b467b2015-05-20 14:27:21 -0500606 if (buffer[0] == '\0') {
607 const char * const _argv[3] = { "setenv", argv[1], NULL };
608
609 return _do_env_set(0, 2, (char * const *)_argv, H_INTERACTIVE);
610 } else {
611 const char * const _argv[4] = { "setenv", argv[1], buffer,
612 NULL };
613
614 return _do_env_set(0, 3, (char * const *)_argv, H_INTERACTIVE);
615 }
Peter Tyser246c6922009-10-25 15:12:56 -0500616}
617#endif /* CONFIG_CMD_EDITENV */
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000618#endif /* CONFIG_SPL_BUILD */
Peter Tyser246c6922009-10-25 15:12:56 -0500619
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200620/*
wdenka68d3ed2002-10-11 08:38:32 +0000621 * Look up variable from environment,
622 * return address of storage for that variable,
623 * or NULL if not found
624 */
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200625char *getenv(const char *name)
wdenka68d3ed2002-10-11 08:38:32 +0000626{
Igor Grinbergd09b1782011-11-07 01:13:59 +0000627 if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200628 ENTRY e, *ep;
wdenka68d3ed2002-10-11 08:38:32 +0000629
Wolfgang Denk91a76752010-07-24 20:22:02 +0200630 WATCHDOG_RESET();
wdenk2a3cb022002-11-05 21:01:48 +0000631
Igor Grinbergd09b1782011-11-07 01:13:59 +0000632 e.key = name;
633 e.data = NULL;
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600634 hsearch_r(e, FIND, &ep, &env_htab, 0);
wdenka68d3ed2002-10-11 08:38:32 +0000635
Macpaul Linf3c615b2011-04-26 16:16:45 +0000636 return ep ? ep->data : NULL;
wdenka68d3ed2002-10-11 08:38:32 +0000637 }
638
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200639 /* restricted capabilities before import */
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200640 if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0)
641 return (char *)(gd->env_buf);
642
643 return NULL;
wdenka68d3ed2002-10-11 08:38:32 +0000644}
645
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200646/*
647 * Look up variable from environment for restricted C runtime env.
648 */
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200649int getenv_f(const char *name, char *buf, unsigned len)
wdenka68d3ed2002-10-11 08:38:32 +0000650{
651 int i, nxt;
652
Igor Grinbergd09b1782011-11-07 01:13:59 +0000653 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
wdenka68d3ed2002-10-11 08:38:32 +0000654 int val, n;
655
Macpaul Linf3c615b2011-04-26 16:16:45 +0000656 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) {
657 if (nxt >= CONFIG_ENV_SIZE)
658 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000659 }
Macpaul Linf3c615b2011-04-26 16:16:45 +0000660
661 val = envmatch((uchar *)name, i);
662 if (val < 0)
wdenka68d3ed2002-10-11 08:38:32 +0000663 continue;
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200664
wdenka68d3ed2002-10-11 08:38:32 +0000665 /* found; copy out */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000666 for (n = 0; n < len; ++n, ++buf) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000667 *buf = env_get_char(val++);
668 if (*buf == '\0')
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200669 return n;
670 }
671
672 if (n)
673 *--buf = '\0';
674
Wolfgang Denka02a8842011-05-04 10:29:49 +0000675 printf("env_buf [%d bytes] too small for value of \"%s\"\n",
676 len, name);
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200677
678 return n;
wdenka68d3ed2002-10-11 08:38:32 +0000679 }
Igor Grinbergd09b1782011-11-07 01:13:59 +0000680
Macpaul Linf3c615b2011-04-26 16:16:45 +0000681 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000682}
683
Simon Glass4a9b4132011-10-14 13:25:18 +0000684/**
685 * Decode the integer value of an environment variable and return it.
686 *
687 * @param name Name of environemnt variable
688 * @param base Number base to use (normally 10, or 16 for hex)
689 * @param default_val Default value to return if the variable is not
690 * found
691 * @return the decoded value, or default_val if not found
692 */
693ulong getenv_ulong(const char *name, int base, ulong default_val)
694{
695 /*
696 * We can use getenv() here, even before relocation, since the
697 * environment variable value is an integer and thus short.
698 */
699 const char *str = getenv(name);
700
701 return str ? simple_strtoul(str, NULL, base) : default_val;
702}
703
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000704#ifndef CONFIG_SPL_BUILD
Mike Frysingerbdab39d2009-01-28 19:08:14 -0500705#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
Kim Phillips088f1b12012-10-29 13:34:31 +0000706static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc,
707 char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000708{
Macpaul Linf3c615b2011-04-26 16:16:45 +0000709 printf("Saving Environment to %s...\n", env_name_spec);
wdenka68d3ed2002-10-11 08:38:32 +0000710
Macpaul Linf3c615b2011-04-26 16:16:45 +0000711 return saveenv() ? 1 : 0;
wdenka68d3ed2002-10-11 08:38:32 +0000712}
wdenk8bde7f72003-06-27 21:31:46 +0000713
Mike Frysingerba69dc22008-12-30 02:59:25 -0500714U_BOOT_CMD(
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200715 saveenv, 1, 0, do_env_save,
Peter Tyser2fb26042009-01-27 18:03:12 -0600716 "save environment variables to persistent storage",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200717 ""
Mike Frysingerba69dc22008-12-30 02:59:25 -0500718);
wdenka68d3ed2002-10-11 08:38:32 +0000719#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000720#endif /* CONFIG_SPL_BUILD */
wdenka68d3ed2002-10-11 08:38:32 +0000721
722
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200723/*
wdenka68d3ed2002-10-11 08:38:32 +0000724 * Match a name / name=value pair
725 *
726 * s1 is either a simple 'name', or a 'name=value' pair.
727 * i2 is the environment index for a 'name2=value2' pair.
Igor Grinbergd09b1782011-11-07 01:13:59 +0000728 * If the names match, return the index for the value2, else -1.
wdenka68d3ed2002-10-11 08:38:32 +0000729 */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000730int envmatch(uchar *s1, int i2)
wdenka68d3ed2002-10-11 08:38:32 +0000731{
Joe Hershberger586197d2012-10-03 09:38:50 +0000732 if (s1 == NULL)
733 return -1;
734
wdenka68d3ed2002-10-11 08:38:32 +0000735 while (*s1 == env_get_char(i2++))
736 if (*s1++ == '=')
Macpaul Linf3c615b2011-04-26 16:16:45 +0000737 return i2;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000738
wdenka68d3ed2002-10-11 08:38:32 +0000739 if (*s1 == '\0' && env_get_char(i2-1) == '=')
Macpaul Linf3c615b2011-04-26 16:16:45 +0000740 return i2;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000741
Macpaul Linf3c615b2011-04-26 16:16:45 +0000742 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000743}
wdenk8bde7f72003-06-27 21:31:46 +0000744
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000745#ifndef CONFIG_SPL_BUILD
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000746static int do_env_default(cmd_tbl_t *cmdtp, int __flag,
Igor Grinbergd09b1782011-11-07 01:13:59 +0000747 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200748{
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000749 int all = 0, flag = 0;
Macpaul Linf3c615b2011-04-26 16:16:45 +0000750
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000751 debug("Initial value for argc=%d\n", argc);
752 while (--argc > 0 && **++argv == '-') {
753 char *arg = *argv;
754
755 while (*++arg) {
756 switch (*arg) {
757 case 'a': /* default all */
758 all = 1;
759 break;
760 case 'f': /* force */
761 flag |= H_FORCE;
762 break;
763 default:
764 return cmd_usage(cmdtp);
765 }
766 }
767 }
768 debug("Final value for argc=%d\n", argc);
769 if (all && (argc == 0)) {
770 /* Reset the whole environment */
771 set_default_env("## Resetting to default environment\n");
772 return 0;
773 }
774 if (!all && (argc > 0)) {
775 /* Reset individual variables */
776 set_default_vars(argc, argv);
777 return 0;
778 }
779
780 return cmd_usage(cmdtp);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200781}
wdenk8bde7f72003-06-27 21:31:46 +0000782
Igor Grinbergd09b1782011-11-07 01:13:59 +0000783static int do_env_delete(cmd_tbl_t *cmdtp, int flag,
784 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200785{
Joe Hershberger9d8d6612012-12-11 22:16:36 -0600786 int env_flag = H_INTERACTIVE;
787 int ret = 0;
788
789 debug("Initial value for argc=%d\n", argc);
790 while (argc > 1 && **(argv + 1) == '-') {
791 char *arg = *++argv;
792
793 --argc;
794 while (*++arg) {
795 switch (*arg) {
796 case 'f': /* force */
797 env_flag |= H_FORCE;
798 break;
799 default:
800 return CMD_RET_USAGE;
801 }
802 }
803 }
804 debug("Final value for argc=%d\n", argc);
805
806 env_id++;
807
808 while (--argc > 0) {
809 char *name = *++argv;
810
811 if (!hdelete_r(name, &env_htab, env_flag))
812 ret = 1;
813 }
814
815 return ret;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200816}
817
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500818#ifdef CONFIG_CMD_EXPORTENV
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200819/*
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100820 * env export [-t | -b | -c] [-s size] addr [var ...]
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200821 * -t: export as text format; if size is given, data will be
822 * padded with '\0' bytes; if not, one terminating '\0'
823 * will be added (which is included in the "filesize"
824 * setting so you can for exmple copy this to flash and
825 * keep the termination).
826 * -b: export as binary format (name=value pairs separated by
827 * '\0', list end marked by double "\0\0")
828 * -c: export as checksum protected environment format as
829 * used for example by "saveenv" command
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100830 * -s size:
831 * size of output buffer
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200832 * addr: memory address where environment gets stored
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100833 * var... List of variable names that get included into the
834 * export. Without arguments, the whole environment gets
835 * exported.
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200836 *
837 * With "-c" and size is NOT given, then the export command will
838 * format the data as currently used for the persistent storage,
839 * i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and
840 * prepend a valid CRC32 checksum and, in case of resundant
841 * environment, a "current" redundancy flag. If size is given, this
842 * value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32
843 * checksum and redundancy flag will be inserted.
844 *
845 * With "-b" and "-t", always only the real data (including a
846 * terminating '\0' byte) will be written; here the optional size
847 * argument will be used to make sure not to overflow the user
848 * provided buffer; the command will abort if the size is not
849 * sufficient. Any remainign space will be '\0' padded.
850 *
851 * On successful return, the variable "filesize" will be set.
852 * Note that filesize includes the trailing/terminating '\0' byte(s).
853 *
854 * Usage szenario: create a text snapshot/backup of the current settings:
855 *
856 * => env export -t 100000
857 * => era ${backup_addr} +${filesize}
858 * => cp.b 100000 ${backup_addr} ${filesize}
859 *
860 * Re-import this snapshot, deleting all other settings:
861 *
862 * => env import -d -t ${backup_addr}
863 */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000864static int do_env_export(cmd_tbl_t *cmdtp, int flag,
865 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200866{
867 char buf[32];
Simon Glassfd37dac2013-10-25 23:01:31 -0600868 ulong addr;
869 char *ptr, *cmd, *res;
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100870 size_t size = 0;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200871 ssize_t len;
872 env_t *envp;
873 char sep = '\n';
874 int chk = 0;
875 int fmt = 0;
876
877 cmd = *argv;
878
879 while (--argc > 0 && **++argv == '-') {
880 char *arg = *argv;
881 while (*++arg) {
882 switch (*arg) {
883 case 'b': /* raw binary format */
884 if (fmt++)
885 goto sep_err;
886 sep = '\0';
887 break;
888 case 'c': /* external checksum format */
889 if (fmt++)
890 goto sep_err;
891 sep = '\0';
892 chk = 1;
893 break;
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100894 case 's': /* size given */
895 if (--argc <= 0)
896 return cmd_usage(cmdtp);
897 size = simple_strtoul(*++argv, NULL, 16);
898 goto NXTARG;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200899 case 't': /* text format */
900 if (fmt++)
901 goto sep_err;
902 sep = '\n';
903 break;
904 default:
Simon Glass4c12eeb2011-12-10 08:44:01 +0000905 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200906 }
907 }
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100908NXTARG: ;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200909 }
910
Macpaul Linf3c615b2011-04-26 16:16:45 +0000911 if (argc < 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000912 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200913
Simon Glassfd37dac2013-10-25 23:01:31 -0600914 addr = simple_strtoul(argv[0], NULL, 16);
915 ptr = map_sysmem(addr, size);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200916
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100917 if (size)
Simon Glassfd37dac2013-10-25 23:01:31 -0600918 memset(ptr, '\0', size);
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100919
920 argc--;
921 argv++;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200922
923 if (sep) { /* export as text file */
Wolfgang Denkea009d42013-03-23 23:50:28 +0000924 len = hexport_r(&env_htab, sep,
925 H_MATCH_KEY | H_MATCH_IDENT,
Simon Glassfd37dac2013-10-25 23:01:31 -0600926 &ptr, size, argc, argv);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200927 if (len < 0) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000928 error("Cannot export environment: errno = %d\n", errno);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200929 return 1;
930 }
Andreas Bießmann8c3aff52011-02-09 15:10:29 +0100931 sprintf(buf, "%zX", (size_t)len);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200932 setenv("filesize", buf);
933
934 return 0;
935 }
936
Simon Glassfd37dac2013-10-25 23:01:31 -0600937 envp = (env_t *)ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200938
939 if (chk) /* export as checksum protected block */
940 res = (char *)envp->data;
941 else /* export as raw binary data */
Simon Glassfd37dac2013-10-25 23:01:31 -0600942 res = ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200943
Wolfgang Denkea009d42013-03-23 23:50:28 +0000944 len = hexport_r(&env_htab, '\0',
945 H_MATCH_KEY | H_MATCH_IDENT,
946 &res, ENV_SIZE, argc, argv);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200947 if (len < 0) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000948 error("Cannot export environment: errno = %d\n", errno);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200949 return 1;
950 }
951
952 if (chk) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000953 envp->crc = crc32(0, envp->data, ENV_SIZE);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200954#ifdef CONFIG_ENV_ADDR_REDUND
955 envp->flags = ACTIVE_FLAG;
956#endif
957 }
Simon Glass41ef3722013-02-24 17:33:22 +0000958 setenv_hex("filesize", len + offsetof(env_t, data));
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200959
960 return 0;
961
962sep_err:
Igor Grinbergd09b1782011-11-07 01:13:59 +0000963 printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", cmd);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200964 return 1;
965}
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500966#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200967
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500968#ifdef CONFIG_CMD_IMPORTENV
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200969/*
Alexander Hollerecd14462014-07-14 17:49:55 +0200970 * env import [-d] [-t [-r] | -b | -c] addr [size]
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200971 * -d: delete existing environment before importing;
972 * otherwise overwrite / append to existion definitions
973 * -t: assume text format; either "size" must be given or the
974 * text data must be '\0' terminated
Alexander Hollerecd14462014-07-14 17:49:55 +0200975 * -r: handle CRLF like LF, that means exported variables with
976 * a content which ends with \r won't get imported. Used
977 * to import text files created with editors which are using CRLF
978 * for line endings. Only effective in addition to -t.
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200979 * -b: assume binary format ('\0' separated, "\0\0" terminated)
980 * -c: assume checksum protected environment format
981 * addr: memory address to read from
982 * size: length of input data; if missing, proper '\0'
983 * termination is mandatory
984 */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000985static int do_env_import(cmd_tbl_t *cmdtp, int flag,
986 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200987{
Simon Glassfd37dac2013-10-25 23:01:31 -0600988 ulong addr;
989 char *cmd, *ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200990 char sep = '\n';
991 int chk = 0;
992 int fmt = 0;
993 int del = 0;
Alexander Hollerecd14462014-07-14 17:49:55 +0200994 int crlf_is_lf = 0;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200995 size_t size;
996
997 cmd = *argv;
998
999 while (--argc > 0 && **++argv == '-') {
1000 char *arg = *argv;
1001 while (*++arg) {
1002 switch (*arg) {
1003 case 'b': /* raw binary format */
1004 if (fmt++)
1005 goto sep_err;
1006 sep = '\0';
1007 break;
1008 case 'c': /* external checksum format */
1009 if (fmt++)
1010 goto sep_err;
1011 sep = '\0';
1012 chk = 1;
1013 break;
1014 case 't': /* text format */
1015 if (fmt++)
1016 goto sep_err;
1017 sep = '\n';
1018 break;
Alexander Hollerecd14462014-07-14 17:49:55 +02001019 case 'r': /* handle CRLF like LF */
1020 crlf_is_lf = 1;
1021 break;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001022 case 'd':
1023 del = 1;
1024 break;
1025 default:
Simon Glass4c12eeb2011-12-10 08:44:01 +00001026 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001027 }
1028 }
1029 }
1030
Macpaul Linf3c615b2011-04-26 16:16:45 +00001031 if (argc < 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001032 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001033
1034 if (!fmt)
1035 printf("## Warning: defaulting to text format\n");
1036
Alexander Hollerecd14462014-07-14 17:49:55 +02001037 if (sep != '\n' && crlf_is_lf )
1038 crlf_is_lf = 0;
1039
Simon Glassfd37dac2013-10-25 23:01:31 -06001040 addr = simple_strtoul(argv[0], NULL, 16);
1041 ptr = map_sysmem(addr, 0);
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001042
1043 if (argc == 2) {
1044 size = simple_strtoul(argv[1], NULL, 16);
Tom Rini3775dcd2014-03-04 15:52:35 -05001045 } else if (argc == 1 && chk) {
1046 puts("## Error: external checksum format must pass size\n");
1047 return CMD_RET_FAILURE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001048 } else {
Simon Glassfd37dac2013-10-25 23:01:31 -06001049 char *s = ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001050
1051 size = 0;
1052
1053 while (size < MAX_ENV_SIZE) {
1054 if ((*s == sep) && (*(s+1) == '\0'))
1055 break;
1056 ++s;
1057 ++size;
1058 }
1059 if (size == MAX_ENV_SIZE) {
1060 printf("## Warning: Input data exceeds %d bytes"
1061 " - truncated\n", MAX_ENV_SIZE);
1062 }
Horst Kronstorferd3f80c72011-12-16 23:33:10 +00001063 size += 2;
Simon Glass79afc882011-11-04 06:42:36 +00001064 printf("## Info: input data size = %zu = 0x%zX\n", size, size);
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001065 }
1066
1067 if (chk) {
1068 uint32_t crc;
Simon Glassfd37dac2013-10-25 23:01:31 -06001069 env_t *ep = (env_t *)ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001070
1071 size -= offsetof(env_t, data);
1072 memcpy(&crc, &ep->crc, sizeof(crc));
1073
1074 if (crc32(0, ep->data, size) != crc) {
1075 puts("## Error: bad CRC, import failed\n");
1076 return 1;
1077 }
Simon Glassfd37dac2013-10-25 23:01:31 -06001078 ptr = (char *)ep->data;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001079 }
1080
Alexander Hollerecd14462014-07-14 17:49:55 +02001081 if (himport_r(&env_htab, ptr, size, sep, del ? 0 : H_NOCLEAR,
1082 crlf_is_lf, 0, NULL) == 0) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001083 error("Environment import failed: errno = %d\n", errno);
1084 return 1;
1085 }
1086 gd->flags |= GD_FLG_ENV_READY;
1087
1088 return 0;
1089
1090sep_err:
1091 printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n",
1092 cmd);
1093 return 1;
1094}
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001095#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001096
Andrew Ruder88733e22013-10-22 19:07:34 -05001097#if defined(CONFIG_CMD_ENV_EXISTS)
1098static int do_env_exists(cmd_tbl_t *cmdtp, int flag, int argc,
1099 char * const argv[])
1100{
1101 ENTRY e, *ep;
1102
1103 if (argc < 2)
1104 return CMD_RET_USAGE;
1105
1106 e.key = argv[1];
1107 e.data = NULL;
1108 hsearch_r(e, FIND, &ep, &env_htab, 0);
1109
1110 return (ep == NULL) ? 1 : 0;
1111}
1112#endif
1113
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001114/*
1115 * New command line interface: "env" command with subcommands
1116 */
1117static cmd_tbl_t cmd_env_sub[] = {
1118#if defined(CONFIG_CMD_ASKENV)
1119 U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""),
1120#endif
1121 U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""),
Joe Hershberger9d8d6612012-12-11 22:16:36 -06001122 U_BOOT_CMD_MKENT(delete, CONFIG_SYS_MAXARGS, 0, do_env_delete, "", ""),
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001123#if defined(CONFIG_CMD_EDITENV)
1124 U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""),
1125#endif
Joe Hershberger5e2b3e02012-12-11 22:16:25 -06001126#if defined(CONFIG_CMD_ENV_CALLBACK)
1127 U_BOOT_CMD_MKENT(callbacks, 1, 0, do_env_callback, "", ""),
1128#endif
Joe Hershbergerfffad712012-12-11 22:16:33 -06001129#if defined(CONFIG_CMD_ENV_FLAGS)
1130 U_BOOT_CMD_MKENT(flags, 1, 0, do_env_flags, "", ""),
1131#endif
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001132#if defined(CONFIG_CMD_EXPORTENV)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001133 U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""),
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001134#endif
Kim Phillipsa000b792011-04-05 07:15:14 +00001135#if defined(CONFIG_CMD_GREPENV)
1136 U_BOOT_CMD_MKENT(grep, CONFIG_SYS_MAXARGS, 1, do_env_grep, "", ""),
1137#endif
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001138#if defined(CONFIG_CMD_IMPORTENV)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001139 U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""),
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001140#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001141 U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""),
1142#if defined(CONFIG_CMD_RUN)
1143 U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""),
1144#endif
1145#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
1146 U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""),
1147#endif
1148 U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""),
Andrew Ruder88733e22013-10-22 19:07:34 -05001149#if defined(CONFIG_CMD_ENV_EXISTS)
1150 U_BOOT_CMD_MKENT(exists, 2, 0, do_env_exists, "", ""),
1151#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001152};
1153
Wolfgang Denk2e5167c2010-10-28 20:00:11 +02001154#if defined(CONFIG_NEEDS_MANUAL_RELOC)
Heiko Schocher60f7da12010-10-05 14:17:00 +02001155void env_reloc(void)
1156{
1157 fixup_cmdtable(cmd_env_sub, ARRAY_SIZE(cmd_env_sub));
1158}
1159#endif
1160
Macpaul Linf3c615b2011-04-26 16:16:45 +00001161static int do_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001162{
1163 cmd_tbl_t *cp;
1164
Thomas Weber5904da02010-11-24 13:07:52 +01001165 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001166 return CMD_RET_USAGE;
Thomas Weber5904da02010-11-24 13:07:52 +01001167
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001168 /* drop initial "env" arg */
1169 argc--;
1170 argv++;
1171
1172 cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub));
1173
1174 if (cp)
1175 return cp->cmd(cmdtp, flag, argc, argv);
1176
Simon Glass4c12eeb2011-12-10 08:44:01 +00001177 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001178}
1179
Kim Phillips088f1b12012-10-29 13:34:31 +00001180#ifdef CONFIG_SYS_LONGHELP
1181static char env_help_text[] =
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001182#if defined(CONFIG_CMD_ASKENV)
1183 "ask name [message] [size] - ask for environment variable\nenv "
1184#endif
Joe Hershberger5e2b3e02012-12-11 22:16:25 -06001185#if defined(CONFIG_CMD_ENV_CALLBACK)
1186 "callbacks - print callbacks and their associated variables\nenv "
1187#endif
Gerlando Falautob64b7c32012-08-24 00:11:41 +00001188 "default [-f] -a - [forcibly] reset default environment\n"
1189 "env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n"
Joe Hershberger9d8d6612012-12-11 22:16:36 -06001190 "env delete [-f] var [...] - [forcibly] delete variable(s)\n"
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001191#if defined(CONFIG_CMD_EDITENV)
1192 "env edit name - edit environment variable\n"
1193#endif
Andrew Ruder88733e22013-10-22 19:07:34 -05001194#if defined(CONFIG_CMD_ENV_EXISTS)
1195 "env exists name - tests for existence of variable\n"
1196#endif
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001197#if defined(CONFIG_CMD_EXPORTENV)
Wolfgang Denk37f2fe72011-11-06 22:49:44 +01001198 "env export [-t | -b | -c] [-s size] addr [var ...] - export environment\n"
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001199#endif
Joe Hershbergerfffad712012-12-11 22:16:33 -06001200#if defined(CONFIG_CMD_ENV_FLAGS)
1201 "env flags - print variables that have non-default flags\n"
1202#endif
Kim Phillipsa000b792011-04-05 07:15:14 +00001203#if defined(CONFIG_CMD_GREPENV)
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001204#ifdef CONFIG_REGEX
1205 "env grep [-e] [-n | -v | -b] string [...] - search environment\n"
1206#else
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001207 "env grep [-n | -v | -b] string [...] - search environment\n"
Kim Phillipsa000b792011-04-05 07:15:14 +00001208#endif
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001209#endif
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001210#if defined(CONFIG_CMD_IMPORTENV)
Alexander Hollerecd14462014-07-14 17:49:55 +02001211 "env import [-d] [-t [-r] | -b | -c] addr [size] - import environment\n"
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001212#endif
Joe Hershbergerbe112352012-12-11 22:16:23 -06001213 "env print [-a | name ...] - print environment\n"
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001214#if defined(CONFIG_CMD_RUN)
1215 "env run var [...] - run commands in an environment variable\n"
1216#endif
Horst Kronstorferd798a9b2011-12-10 02:25:19 +00001217#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001218 "env save - save environment\n"
Horst Kronstorferd798a9b2011-12-10 02:25:19 +00001219#endif
Kim Phillips088f1b12012-10-29 13:34:31 +00001220 "env set [-f] name [arg ...]\n";
1221#endif
1222
1223U_BOOT_CMD(
1224 env, CONFIG_SYS_MAXARGS, 1, do_env,
1225 "environment handling commands", env_help_text
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001226);
1227
1228/*
1229 * Old command line interface, kept for compatibility
1230 */
wdenk8bde7f72003-06-27 21:31:46 +00001231
Peter Tyser246c6922009-10-25 15:12:56 -05001232#if defined(CONFIG_CMD_EDITENV)
Mike Frysinger722b0612010-10-20 03:52:39 -04001233U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001234 editenv, 2, 0, do_env_edit,
Peter Tyser246c6922009-10-25 15:12:56 -05001235 "edit environment variable",
1236 "name\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001237 " - edit environment variable 'name'",
1238 var_complete
Peter Tyser246c6922009-10-25 15:12:56 -05001239);
1240#endif
1241
Mike Frysinger722b0612010-10-20 03:52:39 -04001242U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001243 printenv, CONFIG_SYS_MAXARGS, 1, do_env_print,
Peter Tyser2fb26042009-01-27 18:03:12 -06001244 "print environment variables",
Joe Hershbergerbe112352012-12-11 22:16:23 -06001245 "[-a]\n - print [all] values of all environment variables\n"
wdenk8bde7f72003-06-27 21:31:46 +00001246 "printenv name ...\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001247 " - print value of environment variable 'name'",
1248 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001249);
1250
Kim Phillipsa000b792011-04-05 07:15:14 +00001251#ifdef CONFIG_CMD_GREPENV
1252U_BOOT_CMD_COMPLETE(
1253 grepenv, CONFIG_SYS_MAXARGS, 0, do_env_grep,
1254 "search environment variables",
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001255#ifdef CONFIG_REGEX
1256 "[-e] [-n | -v | -b] string ...\n"
1257#else
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001258 "[-n | -v | -b] string ...\n"
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001259#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001260 " - list environment name=value pairs matching 'string'\n"
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001261#ifdef CONFIG_REGEX
1262 " \"-e\": enable regular expressions;\n"
1263#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001264 " \"-n\": search variable names; \"-v\": search values;\n"
1265 " \"-b\": search both names and values (default)",
Kim Phillipsa000b792011-04-05 07:15:14 +00001266 var_complete
1267);
1268#endif
1269
Mike Frysinger722b0612010-10-20 03:52:39 -04001270U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001271 setenv, CONFIG_SYS_MAXARGS, 0, do_env_set,
Peter Tyser2fb26042009-01-27 18:03:12 -06001272 "set environment variables",
Joe Hershberger24ab5a12012-12-11 22:16:35 -06001273 "[-f] name value ...\n"
1274 " - [forcibly] set environment variable 'name' to 'value ...'\n"
1275 "setenv [-f] name\n"
1276 " - [forcibly] delete environment variable 'name'",
Mike Frysinger722b0612010-10-20 03:52:39 -04001277 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001278);
1279
Jon Loeligerc76fe472007-07-08 18:02:23 -05001280#if defined(CONFIG_CMD_ASKENV)
wdenk8bde7f72003-06-27 21:31:46 +00001281
wdenk0d498392003-07-01 21:06:45 +00001282U_BOOT_CMD(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001283 askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask,
Peter Tyser2fb26042009-01-27 18:03:12 -06001284 "get environment variables from stdin",
wdenk8bde7f72003-06-27 21:31:46 +00001285 "name [message] [size]\n"
Wolfgang Denk7d855912013-02-20 04:53:16 +00001286 " - get environment variable 'name' from stdin (max 'size' chars)"
wdenk8bde7f72003-06-27 21:31:46 +00001287);
Jon Loeliger90253172007-07-10 11:02:44 -05001288#endif
wdenk8bde7f72003-06-27 21:31:46 +00001289
Jon Loeligerc76fe472007-07-08 18:02:23 -05001290#if defined(CONFIG_CMD_RUN)
Mike Frysinger722b0612010-10-20 03:52:39 -04001291U_BOOT_CMD_COMPLETE(
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001292 run, CONFIG_SYS_MAXARGS, 1, do_run,
Peter Tyser2fb26042009-01-27 18:03:12 -06001293 "run commands in an environment variable",
wdenk8bde7f72003-06-27 21:31:46 +00001294 "var [...]\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001295 " - run the commands in the environment variable(s) 'var'",
1296 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001297);
Jon Loeliger90253172007-07-10 11:02:44 -05001298#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +00001299#endif /* CONFIG_SPL_BUILD */